CN110247227B

CN110247227B - Self-unlocking type self-locking assembly matched with unlocking key and self-locking type anti-loosening socket

Info

Publication number: CN110247227B
Application number: CN201910385974.9A
Authority: CN
Inventors: 林海青; 余强; 邹伟军; 张悦
Original assignee: Beijing Top Electronic Co ltd
Current assignee: Beijing Top Electronic Co ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2024-08-20
Anticipated expiration: 2039-05-09
Also published as: CN110247227A

Abstract

The invention discloses a self-unlocking type self-locking assembly matched with an unlocking key, which comprises a locking block driven to transversely move or turn around a shaft and a locking reset elastic element driving the locking block to reset, wherein a locking hook is constructed on the locking block, a locking part matched and locked with the locking hook is constructed on the unlocking key, and a locking piece is positioned in a state waiting for plugging by the locking hook and the locking part. The locking block is introduced, the separation of the time for pressing the unlocking key and inserting the plug is realized by using the locking block, the operation convenience is effectively improved, the unlocking key can be kept in a locking state after the unlocking key is pressed and the plug is pulled out, the locking piece is kept in a plugging state, and the scraping caused by forgetting to press the unlocking key when reinsertion is effectively avoided, so that the use safety is improved.

Description

Self-unlocking type self-locking assembly matched with unlocking key and self-locking type anti-loosening socket

Technical Field

The invention belongs to the technical field of power distribution, and particularly relates to a self-unlocking type self-locking assembly matched with an unlocking key and a self-locking type anti-loosening socket.

Background

Currently, sockets are widely used as an electric field station for a data room as an indispensable connection device between electric equipment and a power supply. Most of the existing power socket modules are connected with a plug, because the metal plug bush of the socket is unreasonable in design and does not have a plug locking function, when external force is used for misoperation, the plug is easy to loosen and fall off, so that poor circuit contact or circuit breaking is caused, data loss is caused, irrecoverable loss is brought to a user, and safety problems such as fire disaster and the like are caused due to electric arcs generated by loosening of the plug. Therefore, there is a strong need for a socket module structure that prevents the pins of the plug from loosening and falling off to solve the above-mentioned technical problems.

CN 108988018A discloses a self-locking anti-loosening socket, which comprises a socket box body, a socket surface shell, a socket bracket and an anti-loosening component, wherein the socket surface shell is used for covering the socket box body and is provided with jacks, the socket bracket is arranged between the socket box body and the socket surface shell, and the anti-loosening component is used for locking pins of a plug; the anti-loose assembly comprises an anti-loose button, a first elastic piece and a locking piece; the inner wall of the side of the holding groove, which is close to the first elastic piece, is an inclined surface, the locking piece is provided with a rotating bulge, and the rotating bulge is arranged in the holding groove. The pin penetrates through the jack and then is inserted into the locking slot hole on the locking piece, when the first elastic piece makes the locking piece deflect under the action of the upward elastic force of the locking button, namely, the locking piece is kept in an inclined state, when the locking piece is in an inclined state, two opposite sides of the pin of the plug inserted into the locking slot hole are abutted and locked by two opposite side walls of the locking slot hole, namely, the pin of the plug cannot loosen, and therefore the locking function of the self-locking type anti-loosening socket is achieved.

The above patents realize locking or releasing through the state change of the locking piece, and have certain anti-drop effect, but the unlocking key must be pressed synchronously during plugging, so that the operation difficulty is increased, and the use is inconvenient.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a self-locking assembly with a state locking function.

The invention is realized by the following technical scheme:

The self-unlocking type self-locking assembly matched with the unlocking key comprises a locking block which is driven to transversely move or turn around a shaft, and a locking reset elastic element which drives the locking block to reset, wherein a locking hook is constructed on the locking block, a locking part matched and locked with the locking hook is constructed on the unlocking key, and the locking hook and the locking part are matched to position a locking piece in a state of waiting for plugging.

In the above technical scheme, a locking positioning cavity for positioning the locking block is formed in the socket box body, the locking block is positioned in the locking positioning cavity and driven to extend the front end of the locking block into the plug bush, and a slope is formed at the front end of the locking block.

In the above technical scheme, the front end is perpendicular to the plug bush, the rear end of the locking block is provided with a guide plate, and the side wall of the socket box body is correspondingly provided with a guide hole or a guide groove.

In the above technical solution, the locking portion is located inside the locking hook, the upper surface of the locking portion and the lower surface of the locking hook are corresponding locking contact surfaces, and the lower surface of the locking portion and the upper surface of the locking hook are corresponding locking driving surfaces.

In the above technical scheme, the upper surface of the locking hook is a slope and the lower surface of the locking hook is a plane, the locking part is a locking plate integrally constructed on the unlocking key, and the upper surface of the locking part is a plane and the lower surface of the locking part is a slope.

The self-locking type anti-loosening socket comprises a socket cover body, a socket box body, a protection door assembly and an anti-loosening assembly, and the self-unlocking type self-locking assembly according to any one of claims 1-5, wherein the protection door assembly comprises a protection door carrier plate and a protection door arranged on the protection door carrier plate, and the anti-loosening assembly comprises an unlocking key and a locking piece.

In the above technical scheme, the locking piece can be fixedly arranged in a pivoting manner, and is driven by the first elastic component to enable the locking piece to tilt up by a locking section with a locking hole, and the unlocking key is provided with a driving part which is interlocked with the locking section.

In the technical scheme, the locking piece is arranged on the protective door carrier plate, the partition plate is constructed in the socket cover body, and the partition plate is used for dividing the space between the protective door and the locking piece.

In the above technical scheme, the locking piece be made by elastic material, locking piece one end and socket lid or socket box body or protection door carrier plate fixed connection, the free section of locking piece on be provided with locking hole and the tip of free section be located the removal route of unblock button in order to realize the unblock button and to drive it, the locking piece resume and maintain in the locking state by the elasticity that its elastic deformation produced.

In the above technical scheme, a positioning groove allowing the lower end of the locking piece to be inserted into the positioning groove is formed in the socket box body, and an upper limit rib is formed on an upper cover of the socket box body to form a pre-pressing point.

In the above technical scheme, the unlocking key is arranged on the socket cover body and driven by the second elastic component to extend outwards, the main body of the unlocking key is provided with a guide groove extending up and down, the socket upper cover comprises a socket panel and a side connecting plate, and the edge of the side connecting plate corresponding to the unlocking key is correspondingly embedded into the guide groove.

In the above technical scheme, a positioning groove for accommodating and positioning the second elastic component is formed in the bottom cavity of the socket box body, and a bottom guide part matched and inserted into the positioning groove is formed on the unlocking key.

In the above technical scheme, the unlocking key is provided with a driving part linked with the end part of the locking section.

In the above technical scheme, the driving part is a linkage plate formed at the top of the main body of the unlocking key and protruding relative to the locking piece, and the end part of the locking section of the locking piece is positioned below the linkage plate.

In the technical scheme, the inner cavity of the socket box body is provided with the plug bush cavities corresponding to the plug bushes, and the plug bush cavities are mutually independent and isolate the plug bushes.

The invention has the advantages and beneficial effects that:

The locking block is introduced, the unlocking key is pressed and locked in the plugging state by the locking block before the plug is inserted, so that the plug can be conveniently and smoothly inserted, the locking block can be triggered when the pins of the plug are plugged into the bottom, the driven movement of the locking block unlocks the locking of the unlocking key, the locking piece is reset to the locking state, the unlocking key is pressed and the plug is plugged in a time separation manner by using the locking block, the operation convenience is effectively improved, and after the unlocking key is pressed and the plug is pulled out, the unlocking key is kept in the locking state, the locking piece is kept in the plugging state, and scraping caused by forgetting to press the unlocking key when the plug is plugged in again is effectively avoided, so that the use safety is improved.

Drawings

FIG. 1 is a schematic view of the structure of the self-locking assembly of the present invention.

Fig. 2 is a schematic structural view of the socket case loaded with the self-locking assembly according to the present invention.

Fig. 3 is a schematic view of the overall structure of the anti-loosening socket of the present invention.

Fig. 4 is a schematic view of the internal structure of the anti-loosening socket of the present invention.

Fig. 5 is a schematic view showing the structure of the anti-loosening assembly.

Fig. 6 is a schematic view of the structure of the socket cover.

Fig. 7 is a schematic view of a socket case.

Fig. 8 is a schematic view showing a structure of a socket housing loaded with a self-locking assembly and a locking tab.

Fig. 9 is a schematic structural view of the self-resetting anti-loosening socket of the present invention.

Fig. 10 is a schematic view of a portion of the structure of the self-resetting anti-loosening socket of the present invention.

Fig. 11 is another view structural schematic diagram of fig. 10.

Fig. 12 is a schematic view showing the cooperation of the locking piece, the movable door carrier plate and the retracting and unlocking keys.

Fig. 13 is a schematic view showing the structure of the locking plate.

Fig. 14 is a schematic view in partial cross-section.

Fig. 15 shows a schematic cross-sectional view.

Fig. 16 is a schematic structural view of the socket case.

Fig. 17 is a schematic view showing a structure in which the self-locking assembly is not loaded in the integrated locking tab receptacle.

Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.

Detailed Description

In order to make the person skilled in the art better understand the solution of the present invention, the following describes the solution of the present invention with reference to specific embodiments.

Example 1

The self-unlocking type self-locking assembly matched with the unlocking key comprises a locking block 8 which is driven to transversely move or turn around a shaft, and a locking reset elastic element 81 which drives the locking block 8 to reset, wherein a locking hook 82 is constructed on the locking block, a locking part 30 which is matched and locked with the locking hook 82 is constructed on the unlocking key 3, and the locking hook and the locking part are matched to position a locking piece in a state of waiting for plugging.

The locking piece is provided with the locking hole, the unlocking key drives the locking piece to switch between a locking state and an inserting state, the locking state refers to the fact that the locking hole of the locking piece is in an interference locking state with the plug pin, the locking state refers to the fact that the locking hole is in a state allowing the plug pin to pass through, the locking principle is similar to the prior art, the locking piece is introduced, before the plug is inserted, the unlocking key is pressed down first and is locked in the inserting state by the locking piece, so that the plug can be conveniently inserted, when the plug pin of the plug is inserted into the bottom, the locking piece is triggered, the driven movement of the locking piece is unlocked to lock the unlocking key, the locking piece is reset to the locking state, the unlocking key is separated from the plug pin in time by the locking piece, the operation convenience is effectively improved, and after the unlocking key is pressed down and the plug pin is pulled out, the unlocking key is kept in the locking state, the locking piece is kept in the inserting state, scraping caused by forgetting to press the unlocking key when the unlocking key is effectively avoided, and the use safety is improved.

The locking device is characterized in that the locking device is arranged in a socket box body, a locking positioning cavity 28 for positioning the locking block is formed in the socket box body, the locking block is positioned in the locking positioning cavity and driven to enable the front end of the locking block to extend into the plug bush, and a slope is formed at the front end of the locking block.

The body 80 of the locking block is assembled in the locking positioning cavity, and the front end 84 is kept in a state of extending into the plug bush by a locking reset elastic element, such as a spring, that is, the front end is positioned on the advancing path of the pin corresponding to the locking hole, when the pin is inserted, the front end of the locking block can be driven to move outwards and unlock the unlocking key, and preferably, the front end of the locking block is plate-shaped so as to realize the extending and driving.

Further, the front end is perpendicular to the plug bush, the rear end of the locking block is provided with a guide plate, and a guide hole or a guide groove is correspondingly formed on the side wall of the socket box body.

The vertical arrangement and the slope arrangement enable the locking block to be automatically driven when the pins are inserted, so that the locking block can horizontally and outwards translate, then the unlocking key is locked by contact, and automatic state switching after the pins are completely inserted is realized.

The locking portion 82 is located inside the locking hook 31, the upper surface of the locking portion and the lower surface of the locking hook are corresponding locking contact surfaces, and the lower surface of the locking portion and the upper surface of the locking hook are corresponding locking driving surfaces. The upper surface of the locking hook is a slope surface, the lower surface of the slope surface is a plane, the locking part is a locking plate integrally constructed on the unlocking key, and the lower surface of the locking part is a slope surface.

The locking driving surfaces of the plate-shaped locking part and the unlocking hook, such as one or two opposite sloping surfaces, can automatically drive the locking block to move and avoid when being pressed, then the unlocking key is locked by utilizing the contact positioning of the locking contact surface after reset, so that the locking piece is in a state to be inserted, when the locking block is driven to translate, the unlocking key can be unlocked by separating from contact, the unlocking key can be sprung to reset, the locking piece locks the pins, the state locking can be realized after the unlocking key is pressed once, the locking device is particularly suitable for the situation that the unlocking key is pressed and the plug is plugged at the same time when the space is narrow or different, the plug can be plugged when the space is convenient, the automatic locking is realized after the plug is plugged into the reserved position, the complete plugging is finished once, the operation is reduced, the operation convenience is improved, and the friction between the pins and the locking piece is avoided.

Second embodiment

The invention relates to a self-locking anti-loosening socket, which comprises a socket cover body 1, a socket box body 2, a protective door assembly 5 and an anti-loosening assembly, and the self-locking assembly, wherein the protective door assembly comprises a protective door 51 and a protective door carrier plate 50 which is fixedly connected with the socket box body and is used for bearing and allowing the protective door carrier plate to relatively move, the anti-loosening assembly comprises an unlocking key 3 and a locking piece 6, the locking piece can be fixedly arranged around a shaft, for example, is rotatably connected with the protective door carrier plate and takes a rotating connection point as a boundary, the locking piece comprises a reset section 62 and a locking section 61, a locking hole is formed in the locking section, the setting of the locking hole is similar to that of the prior art, a first elastic assembly 63 which is used for promoting the locking section to upwards tilt up is arranged between the reset section and the socket box body, and a driving part which is interlocked with the locking section is arranged on the unlocking key. The rotating shaft of the locking piece is fixed on the socket box body, the socket cover body or the protection door carrier plate according to the actual space. For example, the first elastic component can directly apply force to the locking section or apply force to the other end of the rotating shaft of the locking piece, namely the reset section. The present invention is exemplified with the first elastic component exerting force on the reset segment. One end of the first elastic component is in supporting connection with the locking piece, and the other end of the first elastic component can be in positioning connection with the socket cover body, the socket box body or the protection door carrier plate and the like according to actual space layout, and only the action function of the first elastic component can be realized. The structural design of the self-locking assembly is similar to that of the above embodiment, and the description is not repeated. The socket box body is internally provided with a locking positioning cavity 28 for positioning the locking block, and the locking block is positioned in the locking positioning cavity and driven to extend the front end of the locking block into the corresponding plug bush of the locking piece.

Further, the unlocking key is driven by the second elastic component to enable the upper end portion of the unlocking key to extend out of the socket box cover relatively, if a second elastic component 34 for enabling the unlocking key to extend out is arranged between the unlocking key and the socket box body, one end of the second elastic component is in supporting connection with the unlocking key, the other end of the second elastic component can be in positioning connection with the socket cover, the socket box body or the protection door carrier plate and the like according to actual space layout, and the action function of the unlocking key can be achieved only by adopting a sleeve column type design generally, but other realizable modes are not excluded.

It should be noted that: the tilting of the locking section means that the upper end is tilted upwards, pins of the socket are inserted from top to bottom to be described in view angle, when the locking section is tilted, the locking holes on the locking piece are matched with the pins, such as ground pins, to lock the socket, and when the locking piece is inserted, the locking section is horizontal or approximately horizontal or at least is positioned in a state that the locking holes do not interfere with the pin travel, the locking piece releases the interference of the locking holes and the pins, so that smooth insertion and extraction are realized.

The locking principle of the basic locking piece of the locking component is similar to that of the prior art, but the locking component is used for unlocking the mouth-like clamping design of the unlocking key to the locking piece, the unlocking key and the locking piece are respectively driven by separate elastic components, the locking piece is fixed in a mode of being positioned by the original groove, the middle hinge rotating shaft design is adopted, the position of the locking piece is better consistent, and the installation convenience is improved. The assembly difficulty is reduced, the action stability is improved, and the resistance during insertion is reduced to a certain extent even if the unlocking key is not pressed down as required.

Wherein, the protective door carrier plate is provided with an assembling groove 52 for positioning the first elastic component, and the top of the first elastic component, such as a spring 63, is in propping contact with the top of the assembling groove or the socket cover body.

The locking plate middle part extend to both sides integrally and form rotatory round pin post, set up the articulated ear correspondingly on the protection door carrier plate, the cooperation of rotatory round pin post and articulated ear constitutes rotation connection structure, the assembly groove set up in reset segment portion, be provided with the trompil so that reset segment action correspondingly on the protection door carrier plate, utilize the spacing first elastic component of chamber formula assembly groove, like the spring, effectively improve the stability of assemblability and action.

When the locking piece is rotatably connected with the socket cover body, two locking piece positioning ribs can be arranged on the inner side of the socket panel of the socket box body, the rotating pin column of the locking piece is matched and connected with the locking piece positioning ribs to achieve the purposes, and correspondingly, the assembly groove can be formed in the socket cover body.

The unlocking key 3 is arranged on the socket cover body and is driven to extend out, a driving part 31 which is linked with the end part of the locking section is arranged on the unlocking key, the unlocking key is arranged at one corner of the socket box body and is driven by the elastic component to vertically move up and down, and a through hole or a notch which corresponds to the pin column 32 of the unlocking key is formed on the socket panel which is correspondingly and fixedly connected with the socket box body.

The unlocking key is provided with a driving part which is linked with the end part of the locking section, and the driving part is driven in a unidirectional way, namely, only the locking end is pressed downwards and the locking end is not assisted to spring and reset. For example, the driving part is a linkage plate formed at the top of the main body of the unlocking key and protruding relative to the locking piece, and the end part of the locking section of the locking piece is positioned below the linkage plate. The linkage plate is adopted to limit the self-resetting locking piece, so that the self-resetting locking piece is convenient to assemble and can be effectively matched with the self-resetting locking piece to be always in fit contact with the lower surface of the linkage plate.

To accommodate large plugs, such as 16A plugs, the socket panel includes a square body and an extension integrally formed at a corner of the square body, and the via or notch is formed in the extension. The unlocking key adopts a traditional up-and-down driving type structure, is convenient for side installation and integration, can realize action control of the unlocking key through guiding and limiting of the pin column and the through hole or the notch, and is pointed out that the unlocking key is not limited to be only driven up and down, and the purpose of the invention can be realized by adopting a transverse extending type design, and only the action of the unlocking key is switched to tilting or pressing of the locking piece by utilizing a wedge mechanism and the like. Through the setting of extension, can satisfy the plug of the different sizes of equal specification socket and insert, for the round pin post 32, for the action and the control of further extension L shape round pin post leave enough space, avoid influencing the button action.

Meanwhile, in order to improve insulativity and avoid defects such as internal short circuit, a plug bush cavity 20 corresponding to the plug bush is formed in the inner cavity of the socket box body, the plug bush cavities are mutually independent and separate the plug bushes, the creepage distance between the plug bushes is effectively increased, the safety protection performance of the socket box is enhanced, moreover, the plug bush corresponding to the earth electrode is separated, even if the corresponding locking piece is scratched, generated fragments can be limited in the plug bush cavity corresponding to the earth electrode pin, the use requirement of high current and high voltage is met, and the risk of secondary generation is avoided.

Meanwhile, a partition plate 14 is constructed in the socket cover body, and the partition plate 14 divides the space between the protection door and the locking piece. And the division board can be regarded as the tail end support of guard gate reset spring, utilizes the division board to cut apart the space, and the assemblability obtains further promotion, improves the safety in utilization moreover.

On the basis of the above embodiment, in order to improve the motion stability of the unlocking key, the main body of the unlocking key is formed with a guide groove 33 extending up and down, the socket upper cover 1 is box-shaped, and comprises a socket panel 11 and a side connecting plate 12 surrounding the side wall surface, the protection door carrier plate and the side connecting plate of the socket upper cover are fixedly connected in a plug-in fit manner, that is, a plurality of positioning protruding tongues are arranged on the protection door carrier plate in a protruding manner, corresponding positioning holes are formed on the side connecting plate of the socket upper cover, and the relative fixed connection is realized through matched plug-in clamping. Meanwhile, the socket cover body is fixedly connected with the socket box body through boss clamping and bolts. The side connecting plates are integrally formed with the top plate, different connecting side plates are correspondingly arranged on the side surfaces of the bottom cavity of the socket box body and are used for being correspondingly and fixedly connected with the side connecting plates, in particular, fixing holes are formed in the side connecting plates, wedge-shaped positioning tongues are formed on the connecting side plates, and fixed connection is achieved through corresponding plug-in structures. Preferably, for improving the assemblability, two angles adjacent to the unlocking key are connected by bolts, the other angle opposite to the unlocking key is fixedly connected by adopting a folded side connecting plate and a connecting side plate, namely, the design of avoiding the inner and outer concave-convex parts in space is realized, the side wall surface combining plug-in structure in fit contact is utilized to realize the fixed connection, and the two connecting modes are combined to enable the structure to be simple in structure and convenient to assemble. Meanwhile, in order to improve the stability of the protection door carrier plate, a plurality of positioning ribs are arranged between the protection door carrier plate and the socket panel of the socket cover body.

Further, the side connecting plate is provided with a notch 13 at the unlocking key, and the edge of the side connecting plate corresponding to the unlocking key is correspondingly embedded into the guide groove. The snap-in nested design of the notch 13 and the side connecting plate can effectively reduce the occupation of the guide space, and the pressing feeling is improved by utilizing the long-distance guide design.

Further, a positioning groove for accommodating and positioning the elastic component is formed in the bottom cavity of the socket box body, and a bottom guide part which is inserted into the positioning groove in a matching way is formed on the unlocking key. Preferably, the positioning groove is formed by encircling two semicircles with different diameters, and the bottom guide part is a semicircular guide part matched with the semicircle with the large diameter.

The unlocking button adopts bottom guide structure design, has strengthened the location guide effect to the unlocking button, moreover, with the bottom direction integrated to the constant head tank in, has simplified structural design, simultaneously, utilizes two semicircle constitution constant head tanks of different diameters, utilizes semicircular guiding part, plays vertical direction and prevents changeing the direction, is furnished with the round pin post of non-circular cross-section simultaneously, realizes multiple rotation prevention direction design.

Example III

The invention relates to a self-resetting anti-loosening socket, which comprises a socket cover 91, a socket box 92, an anti-loosening assembly and the self-locking assembly, wherein the anti-loosening assembly comprises an unlocking key 93 and a locking piece 4 made of elastic materials, one end of the locking piece is fixedly connected with the socket cover, the socket box or a protection door carrier plate 5, a free section of the locking piece is provided with a locking hole 41, and the end part of the free section, such as a locally-extending protruding tongue 42, is positioned on the moving path of the unlocking key to realize the driving of the unlocking key, and the locking piece is restored to and maintained in a locking state by the elastic force generated by the elastic deformation of the locking piece. The structural design of the self-locking assembly is similar to that of the above embodiment, and the description is not repeated.

The fixing means that the end part or other parts of the locking piece are fixed relative to the socket, the fixing modes are the modes of inserting, welding, clamping, screw connection and the like, and meanwhile, a pre-pressing point for pressing the locking piece inwards is arranged on the cover body or the protective door carrier plate, and the pre-pressing point is utilized to enable the locking piece to be deformed in a certain mode, so that the locking state in the later period is effectively maintained. The key is restored and unlocked by self elasticity to realize the switching between the waiting state and the inserting state.

The pre-pressing point of pushing down makes the locking piece keep a tight state, when being pushed down further, the locking piece can be switched to an inserting state, the locking hole is basically horizontal and is convenient for inserting the pins, when the unlocking key is sprung up for resetting, the locking piece is elastically restored to a locking state by itself, the locking state can be kept or separated from contact with the unlocking key, namely, contact is in one-way linkage, only the locking piece is in linkage when being pushed down, and the locking piece is reset respectively when being reset. Unlike the prior art, which is always contacted by the unlocking key. If the end part of the free section of the locking piece in the locking state is not propped against the unlocking key, the locking piece can be further deformed when the pins of the plug are pulled out forcefully, so that the situation that excessive scratch is avoided when the pins are pulled out is realized.

Wherein, the whole locking piece or at least the part providing the elastic force is made of elastic materials. The elastic material is preferably metal or polymer material, etc.

As one specific embodiment, the socket box body is provided with a positioning groove for allowing the lower end of the locking piece to be inserted into the positioning groove, and the upper cover of the socket box body is provided with an upper limit rib 911 to form a pre-pressing point.

The locating slot is of a cavity structure or an insertion space formed by a plurality of ribs, after the lower end of the locking piece is inserted into the locating slot and bent, the bottom of the locating slot, the top side wall of the locating slot (or the independently arranged lower limit rib 912) and the upper limit rib form three-point limit, so that the locking piece is positioned and kept in a preset state waiting for insertion under preset tension, and preferably, the side wall of the locating slot is formed with arc transition to improve the contact effect.

The lower end of the locking piece penetrates through the upper portion of the protection door carrier plate to enter a positioning groove 922 of the socket box body from the lower portion of the protection door carrier plate, the positioning groove is formed by an inner positioning rib and an outer positioning rib, the outer positioning rib is an arc-shaped plate perpendicular to the locking piece and protruding inwards from the bottom so as to guide and insert the end of the positioning section to the bottom and position the positioning rib, meanwhile, the lower limiting rib 921 is arranged on the socket box body at the inner side of the positioning groove for improving the elasticity of the locking piece, an arc-shaped guide angle is arranged at the contact position of the locking piece and the lower limiting rib of the socket box body, the arc-shaped guide angle is designed to be as large as possible, the deformation length of the locking piece is lengthened, the deformation amount is increased by the aid of the positioning groove design, the corresponding arrangement of the upper limiting rib and the lower limiting rib effectively provides pre-deformation, and the action of the unlocking key is convenient to compress the upper limiting point of the upper limiting rib on the socket upper cover and the positioning groove of the socket box body together to realize pretightening force.

The locking piece is different from the prior art in that the locking piece realizes the combination of the reset spring and the locking piece in the prior art by utilizing the elasticity of the locking piece, and the locking piece can be regarded as comprising two parts, namely a fixed end, a lower end and a free section with a locking hole, and the other part is a free section with a locking hole, so that the self elasticity of the locking piece is utilized to realize the reset, the use of the spring is reduced, and the assembly difficulty is simplified.

When no plug pin is inserted, the pre-pressed point of the free section of the locking piece is limited in a tilting state, the locking piece is in an inclined state, when the plug pin such as a ground plug pin is required to be inserted, the locking piece is driven to be basically parallel to the plane of the socket by the unlocking key, the plug pin can smoothly pass through the locking hole, after the unlocking key is released, the locking piece resets under the elasticity of the locking piece, the locking hole is matched with the plug pin to realize locking of the plug pin, the pulling-out process is similar to the inserting process, and smooth insertion and pulling-out are realized after interference between the locking hole and the plug pin is released.

The locking principle of the basic locking piece of the locking component is similar to that of the prior art, but the locking piece is released from the mouth-like clamping design of the unlocking key to the locking piece, the unlocking key and the locking piece are respectively driven or self-reset, the locking piece is fixed in a mode of original groove type positioning, the locking piece is fixed in a plug-in mode, the position of the locking piece is better consistent, and the installation convenience is improved. The assembly difficulty is reduced, the action stability is improved, and the resistance during insertion is reduced to a certain extent even if the unlocking key is not pressed down as required.

Further, a positioning notch 43 is formed at one side of the lower end of the locking piece, and a positioning plugboard 951 matched with the positioning notch is formed on the socket cover or the protection door carrier plate. The positioning notch is opened upwards, and the positioning plugboard is inserted into the positioning notch in a matched mode, so that the locking piece can be conveniently and conveniently positioned in two degrees of freedom, and irregular movement of the locking piece is prevented.

Wherein, the socket cover body and the socket box body are buckled and connected, and a plurality of positioning lugs 952 are formed on the protection door carrier plate and clamped and fixed by the socket cover body and the socket box body.

The socket box body and the socket cover body are fastened by fastening connection and bolt fixation, so that the convenience and stability of socket assembly are improved, the protection door carrier plate is provided with a plurality of supporting foot plates 953 extending into the socket box body, and the protection door carrier plate is arranged in a clamping and positioning mode and is provided with a plurality of supporting foot plates, so that the strength of the protection door carrier plate is ensured, and meanwhile, the assembly convenience is particularly suitable for the socket assembly.

Further, the unlocking key is arranged on the socket cover body and is driven to extend out, and a sheet-shaped driving part which is linked with the end part of the locking sheet is arranged on the unlocking key.

The driving part is a linkage plate 931 formed on the top of the main body of the unlocking key and protruding relative to the locking piece, and the end part of the free section of the locking piece is positioned below the linkage plate. By adopting the flaky driving part, the prior mouth-like design is changed, the bidirectional linkage of the driving part to the locking piece is relieved, and only the linkage during pressing is reserved, so that the assembly is more convenient. The self-resetting characteristic of the locking piece is effectively adapted to ensure that the locking piece is always in fit contact with the lower surface of the linkage plate.

Wherein, in order to improve the motion stability of the unlocking key, the upper cover of the socket comprises a socket panel 910 and a side connecting plate 912, and a guiding mechanism is arranged between the main body of the unlocking key and the side connecting plate. Specifically, the main body of the unlocking key is formed with a guide slot 933 extending up and down, the socket upper cover 91 is box-shaped, and includes a socket panel 911 and a side connection plate 912 surrounding the side wall surface, the side connection plate is formed with a notch at the unlocking key, and the edge of the side connection plate corresponding to the unlocking key is correspondingly embedded into the guide slot 933.

The guide mechanism is characterized in that a guide groove extending up and down is formed in the body, and the edge of the side connecting plate corresponding to the unlocking key is correspondingly embedded into the guide groove. Meanwhile, in order to adapt to the shape, the side connecting plates can also form an outer convex groove 913 corresponding to the part of the body, and the parts of the two side connecting plates extending into the guide grooves are basically arranged on two sides of the body, so that the guide effect is effectively improved.

The side connecting plates are integrally formed with the top plate, different connecting side plates are correspondingly arranged on the side surfaces of the bottom cavity of the socket box body and are used for being correspondingly and fixedly connected with the side connecting plates, in particular, fixing holes are formed in the side connecting plates, wedge-shaped positioning tongues are formed on the connecting side plates, and fixed connection is achieved through corresponding plug-in structures. Preferably, for improving the assemblability, two angles adjacent to the unlocking key are connected by bolts, the other angle opposite to the unlocking key is fixedly connected by adopting a folded side connecting plate and a connecting side plate, namely, the design of avoiding the inner and outer concave-convex parts in space is realized, the side wall surface combining plug-in structure in fit contact is utilized to realize the fixed connection, and the two connecting modes are combined to enable the structure to be simple in structure and convenient to assemble.

The unlocking button adopts bottom direction structural design, has strengthened the location guide effect to the unlocking button, moreover, with the bottom direction integrated to the constant head tank in, has simplified structural design, simultaneously, utilizes two semicircle constitution constant head tank 24 of different diameters, utilizes semicircular guiding part, plays vertical direction and prevents changeing the direction, is furnished with the round pin post of non-circular cross-section simultaneously, realizes multiple rotation prevention direction design. Of course, the positioning groove can also adopt a cylindrical design.

To accommodate large plugs, such as 16A plugs, the socket panel includes a square body and an extension integrally formed at a corner of the square body, and the via is formed in the extension. The unlocking key adopts a traditional up-and-down driving type structure, is convenient for side installation and integration, can realize the action control of the unlocking key through the guiding and limiting of the pin and the through hole, and is pointed out that the unlocking key is not limited to be only driven up and down, and the purpose of the invention can be realized by adopting a transverse extending type design, and only the action of the unlocking key is required to be switched into tilting or pressing of the locking piece by utilizing a wedge mechanism and the like. Through the setting of extension, can satisfy the plug of the different sizes of equal specification socket and insert, give round pin post 932, for the action and the control of further extension L shape round pin post leave enough space, avoid influencing the button action.

Meanwhile, in order to improve insulativity and avoid defects such as internal short circuit, a plug bush cavity corresponding to the plug bush is formed in the inner cavity of the socket box body, the plug bush cavities 923 are mutually independent and separate the plug bushes, the creepage distance between the plug bushes is effectively increased, the safety protection performance of the socket box is enhanced, moreover, the plug bushes corresponding to the earth electrode are separated, even if the corresponding locking sheets are scratched, generated fragments can be limited in the plug bush cavities corresponding to the earth electrode pins, the use requirement of high current and high voltage is met, and the risk of secondary generation is avoided. Meanwhile, a locking and positioning cavity 928 corresponding to the self-locking component is arranged in the socket box body, and the matching manner of the locking cavity and the locking part 930 of the unlocking key is similar to that of the first embodiment.

That is, the different design forms of the locking piece in the second embodiment and the third embodiment can be applied to the self-locking assembly of the present invention, so as to improve the use feeling of the socket, and of course, for other types of sockets, only by providing the socket with the unlocking key function, the above-mentioned effects can be achieved by providing the independent self-locking assembly.

Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.

Claims

1. The self-unlocking type self-locking assembly is characterized by comprising a locking block which is driven to transversely move or turn around a shaft, and a locking reset elastic element which drives the locking block to reset, wherein a locking hook is constructed on the locking block, a locking part which is matched and locked with the locking hook is constructed on the unlocking key, and the locking hook and the locking part are matched to position a locking piece in a state of waiting for plugging;

the socket box body is internally provided with a locking positioning cavity for positioning the locking block, the locking block is positioned in the locking positioning cavity and driven to extend the front end of the locking block into the plug bush, and the front end of the locking block is provided with a slope;

The front end is perpendicular to the plug bush, the rear end of the locking block is provided with a guide plate, and a guide hole or a guide groove is correspondingly formed on the side wall of the socket box body;

The locking part is positioned at the inner side of the locking hook, the upper surface of the locking part and the lower surface of the locking hook are corresponding locking contact surfaces, and the lower surface of the locking part and the upper surface of the locking hook are corresponding locking driving surfaces.

2. The self-unlocking self-locking assembly mated with an unlocking key of claim 1, wherein: the upper surface of the locking hook is a slope surface, the lower surface of the slope surface is a plane, the locking part is a locking plate integrally constructed on the unlocking key, and the lower surface of the upper surface of the locking plate is a slope surface.

3. The self-locking type anti-loosening socket is characterized by comprising a socket cover body, a socket box body, a protective door assembly and an anti-loosening assembly, and the self-unlocking type self-locking assembly according to any one of claims 1-2, wherein the protective door assembly comprises a protective door carrier plate and a protective door arranged on the protective door carrier plate, and the anti-loosening assembly comprises an unlocking key and a locking piece.

4. The self-locking anti-loosening socket as claimed in claim 3, wherein the locking piece is rotatably fixed around a shaft, and is driven by the first elastic component to tilt the locking section with the locking hole, and the unlocking key is provided with a driving part interlocked with the locking section.

5. The self-locking anti-loosening socket as claimed in claim 4, wherein the locking piece is arranged on the protective door carrier plate, and a partition plate is constructed in the socket cover body, and the partition plate spatially divides the protective door and the locking piece.

6. The self-locking anti-loosening socket as claimed in claim 5, wherein the locking piece is made of elastic material, one end of the locking piece is fixedly connected with the socket cover body, the socket box body or the protection door carrier plate, the free section of the locking piece is provided with a locking hole, the end of the free section is positioned on the moving path of the unlocking key to realize the driving of the unlocking key, and the locking piece is restored to and maintained in a locking state by the elastic force generated by the elastic deformation of the locking piece.

7. The self-locking anti-loosening socket of claim 6, wherein: the socket box body is provided with a positioning groove which allows the lower end of the locking piece to be inserted into the positioning groove, and an upper limit rib is formed on an upper cover of the socket box body to form a pre-pressing point.

8. The self-locking anti-loosening socket of claim 7, wherein: the unlocking key is arranged on the socket cover body and driven by the second elastic component to extend outwards, a guide groove extending up and down is formed in the main body of the unlocking key, the upper cover of the socket box body comprises a socket panel and a side connecting plate, and the edge of the side connecting plate corresponding to the unlocking key is correspondingly embedded into the guide groove.

9. The self-locking anti-loosening socket of claim 8, wherein: the socket box body is characterized in that a positioning groove for accommodating and positioning the second elastic component is formed in the bottom cavity of the socket box body, and the unlocking key is provided with a bottom guide part which is inserted into the positioning groove in a matching mode.

10. The self-locking anti-loosening socket as claimed in claim 9, wherein the unlocking key is provided with a driving part interlocked with the end of the locking section.

11. The self-locking anti-release socket of claim 10, wherein the driving portion is a linkage plate formed at the top of the main body of the unlocking key and protruding relative to the locking piece, and the end of the locking section of the locking piece is located below the linkage plate.

12. The self-locking, anti-loosening socket of claim 11, wherein the socket housing has a cavity formed therein corresponding to the insert, each cavity being independent of and isolating each insert.