CN114678745A - Self-locking connector - Google Patents
Self-locking connector Download PDFInfo
- Publication number
- CN114678745A CN114678745A CN202210275896.9A CN202210275896A CN114678745A CN 114678745 A CN114678745 A CN 114678745A CN 202210275896 A CN202210275896 A CN 202210275896A CN 114678745 A CN114678745 A CN 114678745A
- Authority
- CN
- China
- Prior art keywords
- locking
- sleeve
- self
- plug
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a self-locking connector, which comprises a plug and a socket, wherein the socket comprises a socket shell, and a locking groove is formed in the periphery of the socket shell; the plug comprises a plug shell, a fixed sleeve and a locking sleeve, wherein a first annular groove and a second annular groove are formed in the periphery of the plug shell; the locking sleeve is provided with a first locking position and a second locking position, when the locking sleeve is positioned at the second locking position, the first locking ball is limited in the locking groove by the locking sleeve, the second locking ball is released, the second locking ball moves to the position of the second annular groove from the first annular groove under the action of the compression elastic part, and meanwhile, the first locking ball moves to the position axially blocked with the groove wall of the locking groove; when the first locking position is located, the first locking ball releases the radial locking limitation. When the automatic locking device is inserted, only initial power for reaching the second locking position is required to be provided for the locking piece, and the automatic locking device can be automatically locked.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a self-locking connector.
Background
The connector is applied to a vacuum furnace, a thermocouple is assembled in the connector for measuring temperature parameters in the furnace, when the connector is used, due to the fact that the space in the vacuum furnace is limited, external force cannot be applied manually in the inserting and combining process of the connector, zero inserting force is required to be achieved, and a sealing function needs to be achieved after inserting and combining.
In addition, in an environment where the space is narrow and difficult to operate, the requirement for inserting the connector by manual operation cannot be met. In the conventional connector, a certain pushing force or torque is applied to the plug in the butt joint process, and the external force is always kept in the inserting and closing process to realize the inserting and locking of the connector.
Therefore, how to realize zero insertion force automatic insertion locking of the connector in a narrow space or realize insertion self-locking under only one initial power is an urgent technical problem to be solved.
Disclosure of Invention
In order to solve the technical problems, the invention provides a self-locking connector with a novel structure, which can realize insertion self-locking under the action of self gravity or initial external force and meet the operation requirement of a narrow space.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the self-locking connector provided by the invention, the self-locking connector comprises a plug and a socket, wherein the front end of the plug is inserted into the socket, the socket comprises a socket shell, and the periphery of the socket shell is provided with a locking groove extending along the axial direction; the plug comprises a plug shell, a fixed sleeve and a locking sleeve, wherein the fixed sleeve is sleeved on the periphery of the plug shell in a sliding manner, the locking sleeve is sleeved on the periphery of the fixed sleeve in a sliding manner, a first annular groove and a second annular groove are arranged on the periphery of the plug shell at intervals from front to back along the axial direction, a first locking ball and a second locking ball are arranged on the fixed sleeve at intervals from front to back along the axial direction, and a compression elastic part is arranged between the plug shell and the fixed sleeve; the locking sleeve is provided with a first locking position and a second locking position in the sliding stroke, when the locking sleeve is positioned at the second locking position, the first locking ball is limited in the locking groove by the locking sleeve, the second locking ball for releasing radial locking limit moves from the first ring groove to the second ring groove under the action of the compression elastic part, and the first locking ball moves to a position axially blocked with the groove wall of the locking groove; when the lock sleeve is located first locking position, second locking ball is injectd in first annular or second annular, dodges the groove and is located the first locking ball outside, removes the radial locking of first locking ball and prescribes a limit to.
The purpose of the invention and the technical problem to be solved can be further realized by adopting the following technical measures.
In the self-locking connector, the plug housing and the socket housing are in end face contact, and the contact end faces of the plug housing and the socket housing are further provided with the sealing ring, and the plug housing presses the sealing ring on the socket housing under the action of the compression elastic member.
Foretell from locking connector, when the plug is vertical places in the socket top, the lock sleeve can be moved to second locking position by first locking position under the action of gravity, realizes zero insertion resultant force between plug and the socket and locks certainly.
In the self-locking connector, the first locking balls and the second locking balls are all three and are uniformly distributed along the circumferential direction.
In the self-locking connector, the compression elastic member is a compression spring, one end of the compression spring is pressed on the rear end face of the protrusion on the outer periphery of the plug housing, the other end of the compression spring is pressed on the stepped surface on the inner periphery of the fixed sleeve, and the compression spring is located at the front end of the first ring groove.
In the self-locking connector, the periphery of the fixing sleeve is further provided with a limiting part which can stop at the first locking position when the locking sleeve moves backwards in the axial direction.
In the self-locking connector, the limiting part is a check ring assembled in an annular groove on the periphery of the fixing sleeve.
In the self-locking connector, the locking sleeve can move forward in the axial direction to stay at the second locking position by matching with the concave-convex structure between the fixing sleeve and the socket shell.
In the self-locking connector, the outer periphery of the fixing sleeve is provided with the axial backward limiting surface, the inner periphery of the rear end of the locking sleeve is provided with the locking platform for limiting the second locking ball, and the front end surface of the locking platform is matched with the limiting surface to enable the locking sleeve to stop at the second locking position.
Aforesaid from locking connector, still be equipped with the pinhole on the lock sleeve, wear to establish the pin in this pinhole and can make the lock sleeve lock in first locking position when locking ball and first annular locking.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the invention can achieve considerable technical progress and practicability, has wide industrial utilization value and at least has the following advantages:
the plug locking and unlocking device realizes insertion locking and unlocking by utilizing the locking part on the plug, realizes sealing by the internal spring, the locking ball and the sealing ring structure, can realize the locking and sealing functions by only providing initial power for the locking part from the first locking position to the second locking position in the whole insertion process, can realize self-locking of zero insertion force when the plug is vertically placed above the socket by only using the gravity of the locking part, has simple structure and convenient insertion, and can meet the use requirement of a narrow space.
Drawings
FIG. 1 is a schematic diagram of the self-locking connector of the present invention;
FIG. 2 is a schematic view of the self-locking connector of the present invention beginning to be inserted;
FIG. 3 is a schematic diagram of the plugging process of the self-locking connector of the present invention;
FIG. 4 is a schematic view of the self-locking connector of the present invention inserted in place;
FIG. 5 is a schematic view of the self-locking connector of the present invention beginning to unlock and disengage;
FIG. 6 is a schematic view of the self-locking connector of the present invention fully disengaged;
FIG. 7 is a schematic view of a first step of resetting the self-locking connector plug of the present invention;
FIG. 8 is a schematic diagram of a second step of resetting the self-locking connector plug according to the present invention;
fig. 9 is a schematic view of the self-locking connector plug of the present invention fully reset.
[ description of main element symbols ]
1: plug shell
2: fixing sleeve
3: locking sleeve
4: compression spring
5: sealing ring
6: first locking ball
7: second locking ball
8: limiting surface
9: locking platform
10: dodging groove
11: first ring groove
12: second annular groove
13: check ring
14: pin hole
15: socket shell
16: lock slot
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the self-locking connector according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-9, it is shown that the self-locking connector of the present invention includes a plug and a socket with opposite insertion front ends, wherein the plug includes a plug housing 1, a fixing sleeve 2 slidably sleeved on the outer periphery of the plug housing 1, and a locking sleeve 3 slidably sleeved on the outer periphery of the fixing sleeve 2, wherein the outer periphery of the plug housing 1 is provided with a first annular groove 11 and a second annular groove 12 which are axially distributed in front and back, the first annular groove 11 and the second annular groove 12 are both provided with at least two annular grooves which are circumferentially distributed, in the embodiment of the present invention, the first annular groove 11 and the second annular groove 12 are three annular grooves which are circumferentially distributed.
Still be equipped with compression elastic component 4 between plug housing 1 and the fixed cover 2, this compression elastic component 4 provides the power that the axial is forward for plug housing 1, provides the power that the axial is backward for fixed cover 2 for the two can carry out relative movement when the unblock of second locking ball 7. In the embodiment of the present invention, the compression elastic member 4 is a compression spring, one end of which is pressed on the rear end surface of the boss on the outer periphery of the plug housing 1, and the other end of which is pressed on the stepped surface on the inner periphery of the fixing sleeve 2, and the compression spring is located in front of the first ring groove 11, that is, in the axial direction of the fixing sleeve 2, there are a compression spring, the first ring groove 11, and the second ring groove 12 in order from front to back, but not limited thereto.
The inner side of the front end of the locking sleeve 3 is provided with an avoidance groove 10 for the first locking ball 6 to partially enter so as to realize the radial movement of the first locking ball 6. When second locking ball 7 is injectd in first annular or second annular by locking bush 3, when locking bush 3 was located first locking position promptly, it is outside 6 to dodge groove 10 and be located first locking ball, and first locking ball 6 does not have radial locking spacingly.
In the embodiment of the invention, the plug housing 1 is in end surface contact with the socket housing 15, and the contact end surfaces of the plug housing 1 and the socket housing 15 are embedded with the sealing ring 5, and under the action of the compression elastic member 4, the sealing ring 5 is pressed between the end surfaces of the plug housing 1 and the socket housing 15, so as to realize the sealing between the plug housing 1 and the socket housing 15. Preferably, the sealing ring 5 is located in a groove on the front end face of the plug housing 1, but is not limited thereto.
The fixed sleeve 2 and the locking sleeve 3 are matched through a concave-convex structure to limit axial relative displacement, so that when the locking sleeve 3 moves backwards to be limited axially, the avoidance groove 10 at the front end of the locking sleeve can reach the position of the first locking ball 6, the first locking ball 6 can move outwards in the radial direction and is separated from the locking groove 15, and unlocking between the fixed sleeve 2 and the socket shell 15 is realized; when the locking sleeve 3 moves forwards to be limited in the axial direction, the inner periphery of the locking sleeve 3 is far away from the second locking ball 7, and unlocking of the locking ball 7, the second annular groove 12 and the first annular groove 11 can be achieved.
In the embodiment of the invention, the outer periphery of the fixed sleeve 2 is provided with an axially backward limiting surface 8, the inner periphery of the rear end of the locking sleeve 3 is provided with a locking table 9, and the inner periphery of the locking table 9 is used for being matched with the second locking ball 7 to realize the locking of the second locking ball 7 in the first annular groove 11 or the second annular groove 12. The front end face of the locking sleeve 9 is matched with the limiting face 8, so that the axial forward movement limiting of the fixing sleeve 2 is realized.
In another embodiment of the present invention, the fixing sleeve 2 is used to limit the axial forward movement by the engagement of its front end surface with the peripheral protrusion of the socket housing 15, but is not limited thereto.
The fixed sleeve 2 realizes the limitation of the axial backward movement of the locking sleeve 3 through a retainer ring 13 embedded on the periphery of the fixed sleeve.
The pin hole 14 is formed in the locking sleeve 3, the pin penetrating through the pin hole 14 can limit the locking sleeve at a position in blocking fit with the retainer ring 13, at the moment, the second locking ball 7 is locked with the first annular groove 11, and the plug 1 is integrally stable.
When vertical insertion is carried out, the connector can realize zero insertion force self-locking, and the specific process is detailed as follows: place plug 1 on socket 2, at this moment, lock sleeve 3 is located first locking position, and second locking ball 7 is injectd in first annular 11 by the lock sleeve, and first locking ball is located the locked groove and can be to dodging inslot radial movement. The pin is pulled out, the locking of the locking sleeve 3 is released, the locking sleeve 3 which is unlocked moves downwards from the first locking position to the second locking position under the action of gravity, at the moment, the avoiding groove 10 at the front end of the locking sleeve 3 is separated from the position of the first locking ball 6, and the locking sleeve 3 limits the first locking ball 6 in the locking groove 16; the locking ball 7 that is located first annular 11 department simultaneously is released by locking cover 3, fixed cover 2 and plug housing 1 relative movement under the effect of compression elastic component 4 for the sealing washer between plug housing 1 and the socket casing 15 is compressed, fixed cover 2 drives second locking ball 7 simultaneously and moves to the position of second annular 12 by first annular 11, first locking ball 6 along 16 moves up to with the spacing position of cell wall axial, realize the self-locking sealing locking of plug and socket.
When the plug 1 and the socket 2 are not vertically plugged, only an initial force needs to be applied to the locking sleeve 3, and the locking sleeve reaches the second locking position, so that the self-sealing locking of the plug 1 and the socket 2 can be realized.
When the connector need separate, only need to pulling the lock sleeve, make it get back to first locking position by second locking position, can release first locking ball 6, second locking ball 7 is retrained to the second annular groove this moment in, continues to pull the lock sleeve, can realize the separation of plug and socket.
The locking sleeve 3 is pushed to release the second locking ball 7, and then the plug shell 1 or the fixing sleeve 2 is pushed to enable the first ring groove 11 of the plug shell 1 to move to the second locking ball 7 of the fixing sleeve 2; promote lock sleeve 3 to first locking position once more, retrain second locking ball 7 in first annular 11, reset and accomplish, penetrate the pin in the pinhole on lock sleeve 3 at last and can realize its keeping on first locking position.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (10)
1. A self-locking connector comprises a plug and a socket which are oppositely plugged at the front end, and is characterized in that: the socket comprises a socket shell, and the periphery of the socket shell is provided with a locking groove extending along the axial direction; the plug comprises a plug shell, a fixed sleeve and a locking sleeve, wherein the fixed sleeve is sleeved on the periphery of the plug shell in a sliding manner, the locking sleeve is sleeved on the periphery of the fixed sleeve in a sliding manner, a first annular groove and a second annular groove are arranged on the periphery of the plug shell at intervals from front to back along the axial direction, a first locking ball and a second locking ball are arranged on the fixed sleeve at intervals from front to back along the axial direction, and a compression elastic part is arranged between the plug shell and the fixed sleeve; the locking sleeve is provided with a first locking position and a second locking position in the sliding stroke, when the locking sleeve is positioned at the second locking position, the locking sleeve limits the first locking ball in the locking groove, and the locking ball also relieves the radial locking limit of the second locking ball, so that the second locking ball moves from the first annular groove to the second annular groove under the action of the compression elastic part, and meanwhile, the first locking ball moves to the position axially blocked with the groove wall of the locking groove; when the locking sleeve is located the first locking position, the second locking ball is injectd in first annular or second annular, and the groove of dodging of locking sleeve front end is located the first locking ball outside, removes the radial locking of first locking ball and injects.
2. A self-locking connector as defined in claim 1, wherein: the plug shell and the socket shell are in end face contact, a sealing ring is further arranged on the contact end face of the plug shell and the socket shell, and the sealing ring is pressed on the socket shell by the plug shell under the action of the compression elastic piece.
3. A self-locking connector according to claim 1 or 2, wherein: when the plug is vertically placed above the socket, the locking sleeve can be moved to the second locking position from the first locking position under the action of gravity, and zero insertion force between the plug and the socket is realized.
4. A self-locking connector as defined in claim 3, wherein: the first locking balls and the second locking balls are all provided with three locking balls which are uniformly distributed along the circumferential direction.
5. A self-locking connector as defined in claim 3, wherein: the compression elastic part is a compression spring, one end of the compression spring is pressed on the rear end face of the protrusion on the outer periphery of the plug shell, the other end of the compression spring is pressed on the stepped face on the inner periphery of the fixed sleeve, and the compression spring is located at the front end of the first annular groove.
6. A self-locking connector as defined in claim 3, wherein: the fixed cover periphery still is equipped with the locating part that can stop in first locking position when making the lock sleeve axial rearward shift.
7. A self-locking connector as defined in claim 6, wherein: the limiting part is a check ring assembled in a ring groove on the periphery of the fixed sleeve.
8. A self-locking connector as defined in claim 3, wherein: the locking sleeve can stay at the second locking position when moving axially forwards through the matching of the concave-convex structure between the locking sleeve and the fixed sleeve or the socket shell.
9. A self-locking connector as defined in claim 8, wherein: the fixed cover periphery is equipped with the spacing face that the axial is backward, and the internal week of lock sleeve rear end is equipped with and is used for carrying out spacing locking platform to second locking ball, and this locking platform front end cooperates with spacing face and makes the lock sleeve stop on the second locking position.
10. A self-locking connector as defined in claim 6 or 8, wherein: still be equipped with the pinhole on the locking cover, wear to establish the pin in this pinhole and can make the locking cover locking in first locking position when locking ball and first annular are locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210275896.9A CN114678745B (en) | 2022-03-21 | 2022-03-21 | Self-locking connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210275896.9A CN114678745B (en) | 2022-03-21 | 2022-03-21 | Self-locking connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114678745A true CN114678745A (en) | 2022-06-28 |
| CN114678745B CN114678745B (en) | 2023-09-26 |
Family
ID=82073656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210275896.9A Active CN114678745B (en) | 2022-03-21 | 2022-03-21 | Self-locking connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114678745B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8527018U1 (en) * | 1985-09-21 | 1993-04-08 | Steigerwald, Nikolaus, 7950 Biberach | Low pressure closure for gaseous and liquid media, with a ball locking connection |
| CN1153409A (en) * | 1995-08-09 | 1997-07-02 | 住友电装株式会社 | Locking device for connectors and use thereof for charging connectors and/or high-voltage cable connectors |
| US6022237A (en) * | 1997-02-26 | 2000-02-08 | John O. Esh | Water-resistant electrical connector |
| CN201270342Y (en) * | 2008-08-22 | 2009-07-08 | 贵州航天电器股份有限公司 | High-power radio frequency connector capable of being locked and separated quickly |
| CN201303131Y (en) * | 2008-10-30 | 2009-09-02 | 贵州航天电器股份有限公司 | Quick locking structure in coaxial connector |
| CN101859971A (en) * | 2010-05-18 | 2010-10-13 | 中航光电科技股份有限公司 | Push-pull connector and plug thereof |
| US20130052855A1 (en) * | 2010-04-22 | 2013-02-28 | Canare Electric Co., Ltd. | Ball-lock connector |
| CN104993291A (en) * | 2015-06-22 | 2015-10-21 | 中航光电科技股份有限公司 | Connector assembly |
| CN105610000A (en) * | 2016-02-19 | 2016-05-25 | 北京航天发射技术研究所 | Locking apparatus with forced breaking function and unlocking method |
| CN206685618U (en) * | 2017-04-27 | 2017-11-28 | 林挺进 | Petal type ball lock connector |
| CN109114340A (en) * | 2017-06-26 | 2019-01-01 | 中航光电科技股份有限公司 | In-line connector and its socket, connection component |
| CN209399000U (en) * | 2018-12-26 | 2019-09-17 | 绵阳亿丰达智能装备有限公司 | A kind of self-locking Water pipe fast-connection head of steel ball |
| US20200036133A1 (en) * | 2018-03-26 | 2020-01-30 | Canare Electric Co., Ltd. | Ball lock type connector with unwanted-removal prevention mechanism |
| CN111048947A (en) * | 2019-11-25 | 2020-04-21 | 昆山先特电子科技有限公司 | Push-pull type self-locking connector |
-
2022
- 2022-03-21 CN CN202210275896.9A patent/CN114678745B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8527018U1 (en) * | 1985-09-21 | 1993-04-08 | Steigerwald, Nikolaus, 7950 Biberach | Low pressure closure for gaseous and liquid media, with a ball locking connection |
| CN1153409A (en) * | 1995-08-09 | 1997-07-02 | 住友电装株式会社 | Locking device for connectors and use thereof for charging connectors and/or high-voltage cable connectors |
| US6022237A (en) * | 1997-02-26 | 2000-02-08 | John O. Esh | Water-resistant electrical connector |
| CN201270342Y (en) * | 2008-08-22 | 2009-07-08 | 贵州航天电器股份有限公司 | High-power radio frequency connector capable of being locked and separated quickly |
| CN201303131Y (en) * | 2008-10-30 | 2009-09-02 | 贵州航天电器股份有限公司 | Quick locking structure in coaxial connector |
| US20130052855A1 (en) * | 2010-04-22 | 2013-02-28 | Canare Electric Co., Ltd. | Ball-lock connector |
| CN101859971A (en) * | 2010-05-18 | 2010-10-13 | 中航光电科技股份有限公司 | Push-pull connector and plug thereof |
| CN104993291A (en) * | 2015-06-22 | 2015-10-21 | 中航光电科技股份有限公司 | Connector assembly |
| CN105610000A (en) * | 2016-02-19 | 2016-05-25 | 北京航天发射技术研究所 | Locking apparatus with forced breaking function and unlocking method |
| CN206685618U (en) * | 2017-04-27 | 2017-11-28 | 林挺进 | Petal type ball lock connector |
| CN109114340A (en) * | 2017-06-26 | 2019-01-01 | 中航光电科技股份有限公司 | In-line connector and its socket, connection component |
| US20200036133A1 (en) * | 2018-03-26 | 2020-01-30 | Canare Electric Co., Ltd. | Ball lock type connector with unwanted-removal prevention mechanism |
| CN209399000U (en) * | 2018-12-26 | 2019-09-17 | 绵阳亿丰达智能装备有限公司 | A kind of self-locking Water pipe fast-connection head of steel ball |
| CN111048947A (en) * | 2019-11-25 | 2020-04-21 | 昆山先特电子科技有限公司 | Push-pull type self-locking connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114678745B (en) | 2023-09-26 |
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