CN216849825U - Tripping reset structure for bypass switch - Google Patents

Abstract

The utility model belongs to the technical field of the contactor, a dropout reset structure for bypass switch is disclosed, its characterized in that: the switching-on mechanism comprises a core frame and a rotary horizontal pushing mechanism arranged in the core frame, wherein one end of the rotary horizontal pushing mechanism is connected with a moving contact, the other end of the rotary horizontal pushing mechanism is connected with a handle and a trigger mechanism, the trigger mechanism adopts a lever principle to trigger the rotary horizontal pushing mechanism to execute switching-on operation, and the rotary horizontal pushing mechanism is used for realizing the switching-on operation by moving the rotary horizontal pushing moving contact to a direction close to a static contact; or the rotating handle pushes the moving contact horizontally to move in the direction far away from the fixed contact, so that the opening operation is realized. Adopt the utility model discloses a bypass switch of dropout reset structure preparation has advantages such as simple structure, convenient assembling, actuation power are little, long service life, application scope are wide.

Description

Tripping reset structure for bypass switch

Technical Field

The utility model relates to a technical field of contactor especially relates to a dropout reset structure for bypass switch.

Background

In the field of high-voltage power electronics, particularly in the field of high-voltage SVG and direct-current power transmission and distribution, the core power unit fault further causes the shutdown of the whole equipment on the basis of the damage of the core element of the core power unit, so that the equipment cannot realize functions and threatens the safety of upper-layer equipment, therefore, when the core power unit fault occurs, the core power unit is quickly closed by means of a bypass switch, so that the fault power unit exits a loop, the fault progress is prevented, the fault is reported, the equipment continues to operate, and the reliability of the whole machine is greatly improved.

At present, a bypass switch carries out bypass protection on a power electronic semiconductor device, a main contact of the bypass switch is connected with the power electronic semiconductor device in parallel, the main contact of the bypass switch is an open circuit during normal work, when the power electronic semiconductor device fails, a power port of a bypass switch line is supplied, the main contact of the bypass switch is quickly closed, and the power electronic semiconductor device is bypassed, so that a system still normally operates.

Most of the current bypass switches in the market are electromagnetic type, permanent magnet vacuum type and the like, and compared with the electromagnetic type, the permanent magnet vacuum type has the advantages of energy conservation, no temperature rise, no vibration of a contact, long service life, strong electromagnetic interference resistance and the like; but at the same time, the permanent magnet vacuum type also has the defects of large volume, complex structure, inconvenient installation, use and transportation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dropout reset structure for bypass switch solves current bypass switch bulky, the structure is complicated, installation, use and transport inconvenient scheduling problem.

The utility model discloses the following technical scheme of accessible realizes:

a tripping reset mechanism for a bypass switch comprises a core frame and a rotary flat-pushing mechanism arranged in the core frame, wherein one end of the rotary flat-pushing mechanism is connected with a moving contact, the other end of the rotary flat-pushing mechanism is connected with a handle and a trigger mechanism, the trigger mechanism triggers the rotary flat-pushing mechanism to execute a switching-on operation by adopting a lever principle, and the rotary flat-pushing mechanism is used for realizing the switching-on operation by rotating the flat-pushing moving contact to move towards a direction close to a static contact; or the rotating handle pushes the moving contact to move towards the direction far away from the static contact, so that the opening operation is realized. Therefore, the switching-on and switching-off between the moving contact and the static contact are controlled in a flat push mode, the whole structure is a direct-acting structure, the trigger mechanism is designed by adopting a lever principle, namely, the action of the mechanism can be realized by using smaller driving force, so that the whole structure is simplified to the greatest extent, the assembly difficulty is reduced, the production period is shortened, the reliability of the bypass switch is improved, and the bypass switch has the advantages of simple structure, convenience in assembly, small actuation power, long service life, wide application range and the like.

Furthermore, rotatory flat pushing mechanism includes the guide bar, the one end of guide bar is connected with the elastic energy storage piece that is in compression state, and the other end can be connected with the moving contact one end of keeping away from the static contact with dismantling, crosses the cover in the junction that can dismantle and is equipped with the reset lever, the reset lever all rotates with guide bar, moving contact to be connected, and its one end rotates through first pivot and core frame to be connected, and the other end and handle fixed connection, and can dismantle with trigger mechanism and be connected.

Therefore, when the trigger mechanism is disconnected with the other end of the reset lever, the elastic energy storage part in a compressed state horizontally pushes the guide rod and the moving contact to move towards the direction close to the static contact, and meanwhile, the reset lever is driven to rotate anticlockwise around the first rotating shaft, so that the switching-on operation is realized, and the switching-on holding force is provided;

and rotating the handle to drive the reset lever to rotate clockwise around the first rotating shaft until the other end of the reset lever is connected with the trigger mechanism, and simultaneously driving the guide rod and the moving contact to move towards the direction far away from the static contact so as to realize the brake-separating operation.

The whole rotary flat push mechanism also adopts a lever-like principle, takes the elastic force generated by the elastic energy storage element which is always in a compression state as the flat push acting force to drive the guide rod and the moving contact to move towards the static contact so as to realize the switching-on, and during the period, the elastic energy storage element is always in the compression state and can be used for providing the switching-on holding force, thereby ensuring the contact pressure of the static contact and the moving contact and providing safe and reliable switching-on performance, meanwhile, the reset lever clamped between the guide rod and the moving contact is utilized to be rotationally connected by virtue of the rotation between the guide rod and the moving contact, and the rotation center of the reset lever is not between the guide rod and the moving contact, therefore, when the reset lever is driven to rotate by manually rotating the handle, the thrust force is generated to the guide rod so as to enable the elastic energy storage element to be compressed for further storing energy, and the preparation is made for the next rapid switching-on until the other end of the reset lever is connected with the trigger mechanism, and (4) realizing brake opening.

Further, the lever that resets includes the circular portion of card between moving contact and guide bar, the contact surface of circular portion and moving contact and guide bar is circular-arcly, and its one end is connected with pivot portion, and the other end is connected with switching portion, and its inside is provided with the first passageway that the junction passes through can be dismantled to the energy, pivot portion is provided with the second passageway that supplies first pivot to pass through, the axis mutually perpendicular of first passageway and second passageway, switching portion is used for being connected with handle, trigger mechanism.

When the bypass switch is in an opening state, the circle center of the circular part and the axis of the first rotating shaft are in the same straight line, and when the novel bypass switch is in a closing state, the circle center of the circular part is located between the axis of the first rotating shaft and the moving contact.

By means of the vertical arrangement of the first channel and the second channel and the circular part, the reset lever, the moving contact and the guide rod can be connected together skillfully, so that the flat push movement of the moving contact is realized when the reset lever is rotated while the sleeved connection is realized, and the guarantee is provided for subsequent opening and closing.

Furthermore, the other end of the guide rod is axially provided with a sleeve, one end of the moving contact far away from the static contact is provided with a connecting rod, the connecting rod is in threaded fit with the sleeve,

the elastic energy storage part is a disc spring, an annular bulge is arranged at the end part of the other end of the guide rod, the disc spring in a compressed state is sleeved on the surface of the guide rod, one end of the disc spring is clamped on one side of the annular bulge, and the other end of the disc spring is fixedly arranged on the core frame.

Furthermore, both ends of the disc spring are provided with gaskets, the outer diameter of each gasket is larger than that of the annular bulge, the inner diameter of each gasket is matched with that of the guide rod, and the upper part and the lower part of one side of each annular bulge are respectively provided with a travel switch. When the bypass switch is in a closing state, the edge of the gasket is in contact with the trigger elastic sheet of the travel switch, when the bypass switch is in an opening state, the edge of the gasket is not in contact with the trigger elastic sheet of the travel switch, and the travel switch is used for acquiring a closing completion signal and an opening starting signal. Therefore, a closing completion signal and an opening starting signal are acquired by the aid of the travel switch and then fed back to the power grid controller to inform the bypass switch whether the bypass function is completed or not so as to carry out subsequent control.

Further, the triggering mechanism comprises a tripping lever, the tripping lever is rotatably connected with the core frame through a second rotating shaft, one end of the tripping lever is connected with the switching part of the reset lever in a hooking mode, the other end of the tripping lever is opposite to the triggering rod, and the triggering rod is connected with the driving mechanism.

The driving mechanism is used for driving the trigger rod to move towards the other end close to the tripping lever by adopting an electromagnetic induction principle, driving the tripping lever to rotate anticlockwise around the second rotating shaft until one end of the tripping lever is disengaged from the switching part of the reset lever, and triggering the rotary translational push mechanism to execute a closing operation.

The specific hooking and matching mode of the tripping lever and the reset lever and the specific position of the second rotating shaft, which is set as the tripping lever, can be determined according to actual conditions, such as a 7-type mode and the like in a back-off matching mode, and the electromagnetic induction mode can well receive an instruction of a power grid controller, control the action of the trigger rod and further trigger the rotary horizontal pushing mechanism to execute a closing operation.

Furthermore, a groove matched with one end of the handle is formed in the surface of the switching part of the reset lever, a third channel for allowing one end of the tripping lever to pass through is formed in the switching part, and a reset elastic sheet in a bending angle shape is arranged between one end of the tripping lever and the inner wall of the third channel.

Therefore, the handle is manually rotated to drive the switching part of the reset lever to clockwise rotate around the first rotating shaft, at the moment, the inner wall of the third channel pushes the reset elastic sheet to enable one end of the tripping lever to move towards the direction close to the switching part until the tripping lever and the switching part are in matched in a matched mode in a hooking mode, meanwhile, the horizontal pushing guide rod and the moving contact move towards the direction far away from the static contact, and the brake separating operation is achieved.

Further, the tip of tripping lever one end is provided with the right angle bayonet socket, the tip of the switching portion of reset lever is provided with the oblique angle arch with right angle bayonet socket complex.

Further, the core frame comprises a first U-shaped cavity, a vertical plate of the first U-shaped cavity is connected with two transverse plates of a second U-shaped cavity and the side surface of one vertical plate, a through hole matched with a disc spring is formed in the center of the vertical plate of the first U-shaped cavity, the cavity of the second U-shaped cavity is used for placing a rotary flat pushing mechanism, and the cavity of the first U-shaped cavity is used for placing a driving mechanism;

the circle center of the cross section of the second channel of the reset lever and the circle center of the circular part are on the same straight line, and the axes of the first channel and the third channel are parallel to each other and are perpendicular to the axis of the second channel.

The core frame with two U-shaped cavities in lap joint is utilized, the rotary horizontal pushing mechanism and the driving mechanism can be placed in corresponding cavities, the triggering mechanism and the two mechanisms are connected and can be placed beside the core frame, and the static contact is arranged in front of the rotary horizontal pushing mechanism.

The utility model discloses profitable technological effect lies in:

1. the utility model discloses a bypass switch is for the adaptation high voltage electricity electron field that uses, especially reactive power compensator SVG's fault power unit, and its combined floodgate retentivity is guaranteed by the dish spring of the compression state that designs, provides safe and reliable's combined floodgate performance. Under the separating brake state, the dish spring is in the precompression state, adopts one-level power reduction tripping system just can realize with the release of less electromagnetic force with dish spring precompression power, need not multistage tripping system to make bypass switch simple structure, operation reliable, with low costs.

2. By means of the design of the three U-shaped cavities, the rotary horizontal pushing mechanism and the trigger mechanism are wrapped inside, and meanwhile, the rotary horizontal pushing mechanism and the trigger mechanism can be detachably assembled with the static contact unit in an insulating way, so that the overall structure is reduced, the reliability of the overall function is improved, and the service life is prolonged;

3. the bypass switch is reset manually by using the handle to return to the opening state, so that the bypass switch product can be repeatedly used. The structure design is succinct reasonable, reduces the assembly degree of difficulty, shortens production cycle, when having promoted bypass switch reliability, furthest's reduction in cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the internal structure of the present invention;

fig. 3 is an exploded schematic view of a static contact unit of the present invention;

fig. 4 is a schematic axial sectional structure view of a static contact unit of the present invention;

fig. 5 is an exploded schematic view of the rotary horizontal pushing mechanism and the triggering mechanism of the present invention;

fig. 6 is a first axial sectional structural diagram of the general structure of the present invention;

fig. 7 is a schematic axial sectional structural view of the overall structure of the present invention;

fig. 8 is a schematic view of the fitting structure of the total moving contact, the guide rod and the reset lever according to the present invention;

fig. 9 is a schematic view of the matching structure of the handle and the reset lever of the present invention;

fig. 10 is a schematic structural view of a core frame of the present invention;

fig. 11 is a schematic structural view of the reset lever of the present invention;

fig. 12(a) is a schematic diagram of the opening position of the present invention;

fig. 12(b) is a schematic diagram of the closing position of the present invention;

fig. 12(c) is a schematic diagram of the opening overshoot position of the present invention;

the device comprises a 1-fixed contact unit, a 101-first insulating plate, a 102-fixed contact, a 103-second insulating plate, a 104-contact seat, a 105-third insulating plate, a 106-bolt rod, a 107-insulating sleeve, a 108-spring contact finger, a 109-annular guide piece, a 110-movable side connection aluminum bar, a 2-movement assembly, a 201-movement frame, a 2011-first U-shaped cavity, a 2012-second U-shaped cavity, a 202-driving mechanism, a 203-tripping lever, a 204-disc spring, a 205-movable contact, a 206-third U-shaped cavity, a 207-guide rod, a 208-reset lever, a 2081-circular part, a 2082-rotating shaft part, a 2083-switching part, a 209-gasket, a 210-first rotating shaft, a 211-handle, a 212-reset elastic sheet, a 2083-reset elastic sheet, 213-second shaft, 214-trigger bar, 215-travel switch, 216-guide ring.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1, 2, 6, and 7, the present invention provides a tripping reset mechanism for a bypass switch, which forms a bypass switch together with a static contact unit 1, and a nested fit is adopted between the two, the tripping reset mechanism includes a core assembly 2, the core assembly 2 includes a core frame 201, the core frame 201 is composed of two U-shaped cavities, a vertical plate of a first U-shaped cavity 2011 is connected with two horizontal plates of a second U-shaped cavity 2012, and a side surface of one vertical plate, so as to form two cavities, the cavity of the second U-shaped cavity 2012 is used for placing a rotary horizontal pushing mechanism, the cavity of a first U-shaped cavity 2011 is used for placing a driving mechanism 202, because the two mechanisms are connected with a tripping lever 203 of a trigger mechanism, therefore, the tripping lever 203 can be placed on the side surface of the core frame 201, so that the connection is convenient, and simultaneously, a through hole matched with a disc spring 204 in the rotary horizontal pushing mechanism is provided at the center of the vertical plate 2011, and the static contact unit 1 containing the conductive connection aluminum bar is arranged in front of the rotary horizontal pushing mechanism, so that the whole bypass switch is very compact in structure, the size can be reduced to the maximum extent, and the miniaturization is convenient to realize.

Specifically, as shown in fig. 3-4, the stationary contact unit 1 includes a first insulating plate 101, a stationary contact 102, a second insulating plate 103, a contact base 104, and a third insulating plate 105, which are connected in series through a plurality of bolt bars 106, an insulating sleeve 107 is sleeved outside each bolt bar 106, through holes for passing a moving contact 205 are formed in the centers of the third insulating plate 105, the contact base 104, and the second insulating plate 103, grooves for matching a spring contact finger 108 and an annular guide member 109 are formed on the inner walls of the through holes of the contact base 104, a moving-side connecting aluminum bar 110 is arranged on the contact base 104, so that the current of the moving-side connecting aluminum bar 110 is conveniently transmitted to the moving contact, and a stationary-side connecting aluminum bar is arranged on the stationary contact 102. Therefore, when the switch is switched on and off, the movable contact 205 sequentially passes through the through holes in the third insulating plate 105, the contact seat 104 and the second insulating plate 103 to be matched with the fixed contact 102 under the driving of the trigger mechanism and the rotary flat pushing mechanism, a protrusion matched with the movable contact 205 can be arranged at a corresponding position of the fixed contact 102, the contact efficiency is improved, then the circuit can be closed by connecting the aluminum row on the fixed side and the aluminum row on the movable side on the fixed contact 102 and the contact seat 104, and the circuit can be cut off from the fault power unit to achieve a bypass effect.

In order to realize miniaturization of the whole structure, a third U-shaped cavity 206 matched with the first U-shaped cavity 2011 is designed, two transverse plates of the third U-shaped cavity are clamped on the two transverse plates of the first U-shaped cavity 2011, a plurality of through holes matched with nuts are arranged on the vertical plates of the third U-shaped cavity, the static contact unit 1 and the movement assembly 2 are detachably assembled together by means of the matching of the nuts and the bolts to form a more compact structure, internal devices can be well protected, meanwhile, the static contact unit 1 and the movement assembly 2 are arranged into two parts which are independently matched, the two parts are insulated and isolated, so that series products need to be produced, only moving and static contacts, spring contact fingers and conductive bars with different through-current sizes are required to be replaced, two ends of a guide piece and a movable contact piece in the rotary flat-pushing mechanism are respectively matched with the through holes in the core frame and the through holes of the static contact unit, and guide pieces are arranged in the rotary flat pushing mechanism, the design of front and back double-way guiding is adopted, so that the reliability of guiding is ensured, the requirements on production assembly and product debugging are reduced, and the production efficiency is improved.

As shown in fig. 5, 8-11, the rotary horizontal pushing mechanism includes a guiding rod 207, one end of the guiding rod 207 is connected to the disc spring 204 in a compressed state, the other end is detachably connected to one end of the movable contact 205 away from the fixed contact 102, a reset lever 208 is sleeved across the detachable connection, for example, a sleeve is axially disposed at the other end of the guiding rod 207, a connecting rod is disposed at one end of the movable contact 205 away from the fixed contact 102, and the connecting rod and the sleeve are in threaded fit, so as to leave an installation space for the reset lever 208; the end of one end of the guide rod 207 is provided with an annular protrusion for abutting against one end of the disc spring 204, the inner diameter of the disc spring 204 is matched with the outer diameter of the guide rod 207, and the disc spring is sleeved on the guide rod 207 through a guide ring 216, gaskets 209 are arranged at two ends of the guide rod 207, one end of the disc spring is fixedly arranged in a through hole in a vertical plate of the first U-shaped cavity 2011, the other end of the disc spring abuts against the annular protrusion, so that the disc spring 204 is clamped between the vertical plate of the first U-shaped cavity 2011 and the annular protrusion of the guide rod 207, the position of the vertical plate of the first U-shaped cavity 2011 is fixed and unchanged, and the position space where the disc spring 204 is located is changed along with the movement of the guide rod 207.

The reset lever 208 comprises a circular part 2081 clamped between the movable contact 205 and the guide rod 207, the circular part 2081, the contact surfaces of the movable contact 205 and the guide rod 207 are all arc-shaped, so as to facilitate the rotational connection between the three, a first channel for passing through the detachable connection part is arranged inside the circular part 2081, so as to facilitate the sleeving, one end of the circular part is connected with the rotating shaft part 2082, the rotating shaft part 2082 is provided with a second channel for passing through the first rotating shaft 210, the axes of the first channel and the second channel are mutually vertical, the other end of the circular part 2081 is connected with an adapter part 2083 for fixedly connecting with the handle 211, and is detachably connected with the trigger mechanism in a hook-and-lap fit manner, namely, a groove matched with one end of the handle 211 is arranged on the surface of the adapter part 2083, a third channel for passing through one end of the trip lever 203 of the trigger mechanism is arranged inside the adapter part, thus, a right angle is arranged at the end of one end of the trip lever 203, the end of the adapter 2083 of the reset lever 208 is provided with an oblique protrusion matched with the right-angle bayonet to complete the detachable connection in a hook-and-loop manner, and meanwhile, a reset elastic sheet 212 in a folded angle shape is further arranged between one end of the trip lever 203 and the inner wall of the third channel.

The triggering mechanism comprises a tripping lever 203, the tripping lever 203 is rotatably connected with the core frame 201 through a second rotating shaft 213, one end of the tripping lever is connected with an adapter 2083 of the reset lever 208 in a hooking mode, the other end of the tripping lever is opposite to the triggering rod 214, the triggering rod 214 is connected with a driving mechanism 202, the driving mechanism 202 is used for driving the triggering rod 214 to move towards the other end close to the tripping lever 203 by adopting an electromagnetic induction principle, the tripping lever 203 is driven to rotate anticlockwise around the second rotating shaft 213 until one end of the tripping lever 203 is disengaged from the adapter 2083 of the reset lever 208, and the rotating horizontal pushing mechanism is triggered to execute a closing operation.

Thus, when a closing operation is performed, as shown in fig. 12(b), one end of the trip lever 203 in the trigger mechanism is disengaged from the adaptor portion of the reset lever 208, the compressed disc spring 204 is released, the flat push guide rod 207 moves toward the direction close to the fixed contact 102 together with the movable contact 205, and meanwhile the guide rod 207 pushes the reset lever 208 rotatably connected therewith to rotate counterclockwise around the first rotating shaft 210, so that the closing operation is realized, that is, the disc spring 204 is still in the compressed state, that is, the minimum compression amount of the closing state, that is, the disc spring 204 sequentially passes through the through holes in the third insulating plate 105, the contact base 104, and the second insulating plate 103 to be in contact with the fixed contact 102, thereby facilitating the provision of a closing holding force and providing safe and reliable closing performance;

in order to provide a switching-on/off feedback signal, an opening matched with the travel switch 215 is respectively arranged on two transverse plates of the second U-shaped cavity 2012 and used for loading the travel switch, the travel switch 215 is arranged above and below one end of the guide rod 207, as the disc spring 204 is clamped between a vertical plate of the first U-shaped cavity 2011 and the annular protrusion of the guide rod 207, the position of the vertical plate of the first U-shaped cavity 2011 is fixed and unchanged, the position space where the disc spring 204 is located is changed along with the movement of the guide rod 207, and the outer diameter of the disc spring 204 is larger than that of the annular protrusion, when the disc spring 204 is switched on, the compressed disc spring 204 is released and gradually extends until the switching-on is completed, at this time, a gasket at the end of the disc spring 204 just contacts a triggering elastic sheet of the travel switch 215, the switching-on signal acquisition is completed, and simultaneously, when the brake is switched off, the guide rod 207 is driven by a rotary flat push mechanism to compress the disc spring 204, so that the gasket at the end of the disc spring 204 is gradually separated from the contact with the trigger spring piece of the travel switch 215, and the collection of the opening signal can be completed, so as to feed back to the electric network controller, and inform the bypass switch whether to complete the bypass function, so as to perform subsequent control.

When the opening operation is performed, as shown in fig. 12(a), the handle 211 is rotated to drive the reset lever 208 to rotate clockwise around the first rotating shaft 210, at this time, the inner wall of the third channel pushes the reset elastic sheet 212 to make one end of the trip lever 203 move in a direction approaching the switching part until the two are in a snap fit, at the same time, the rotated reset lever 208 drives the guide rod and the moving contact 205 to move in a direction away from the fixed contact 102, at this time, the disc spring 204 is gradually compressed until the maximum compression amount of the opening state is reached, and the opening operation is realized.

During manual opening, due to inaccurate force control of an operator, an over-rotation phenomenon sometimes occurs, that is, the moving contact 205 has already passed through an opening position, that is, an opening overshoot position, as shown in fig. 12(c), at this time, the reset lever 208 is rotated excessively, the disc spring 204 is further compressed, and exceeds a maximum compression amount set in an opening state, and at the same time, one end of the trip lever 203 exceeds an adapter portion of the reset lever 208, the reset spring 212 between the reset lever and the reset spring is also compressed excessively, and then the operator releases the handle 211, so that, once the applied external force disappears, the excessively compressed disc spring 204 and the reset spring 212 are released, the reset lever 208 and the trip lever 203 are pushed to move in a reverse direction until the reset lever and the trip lever are engaged together, and at this time, the disc spring 204 returns to the maximum compression amount set in the opening state, thereby achieving a final stable state.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these embodiments are merely illustrative and various changes or modifications may be made therein without departing from the principles and spirit of the invention, and therefore, the scope of the invention is defined by the appended claims.

Claims (9)

1. The utility model provides a dropout structure that resets for bypass switch which characterized in that: the switching-on mechanism comprises a core frame and a rotary horizontal pushing mechanism arranged in the core frame, wherein one end of the rotary horizontal pushing mechanism is connected with a moving contact, the other end of the rotary horizontal pushing mechanism is connected with a handle and a trigger mechanism, the trigger mechanism adopts a lever principle to trigger the rotary horizontal pushing mechanism to execute switching-on operation, and the rotary horizontal pushing mechanism is used for realizing the switching-on operation by moving the rotary horizontal pushing moving contact to a direction close to a static contact; or the rotating handle pushes the moving contact to move towards the direction far away from the static contact, so that the opening operation is realized.

2. The trip reset structure for a bypass switch of claim 1, wherein: the rotary horizontal pushing mechanism comprises a guide rod, one end of the guide rod is connected with the elastic energy storage part in a compression state, the other end of the guide rod is detachably connected with one end, away from the fixed contact, of the moving contact, a reset lever is sleeved on the detachable connection portion in a crossing mode, the reset lever is rotatably connected with the guide rod and the moving contact, one end of the reset lever is rotatably connected with the core frame through a first rotating shaft, and the other end of the reset lever is fixedly connected with the handle and detachably connected with the trigger mechanism.

3. The trip reset structure for a bypass switch of claim 2, wherein: the reset lever includes the circular portion of card between moving contact and guide bar, the contact surface of circular portion and moving contact and guide bar is circular-arcly, and its one end is connected with pivot portion, and the other end is connected with switching portion, and its inside is provided with the first passageway that the junction passes through can be dismantled to the energy, pivot portion is provided with the second passageway that supplies first pivot to pass through, the axis mutually perpendicular of first passageway and second passageway, switching portion is used for being connected with handle, trigger mechanism.

4. The trip reset structure for a bypass switch of claim 2, wherein: the other end of the guide rod is axially provided with a sleeve, one end of the moving contact far away from the static contact is provided with a connecting rod, the connecting rod is in threaded fit with the sleeve,

the elastic energy storage part is a disc spring, an annular bulge is arranged at the end part of the other end of the guide rod, the disc spring in a compressed state is sleeved on the surface of the annular bulge, one end of the disc spring is clamped on one side of the annular bulge, and the other end of the disc spring is fixedly arranged on the core frame.

5. The trip reset structure for a bypass switch of claim 4, wherein: the two ends of the disc spring are respectively provided with a gasket, the outer diameter of the gasket is larger than that of the annular bulge, the inner diameter of the gasket is matched with that of the guide rod, and the upper part and the lower part of one side of the annular bulge are respectively provided with a travel switch.

6. The trip reset structure for a bypass switch of claim 3, wherein: the trigger mechanism comprises a tripping lever, the tripping lever is rotatably connected with the core frame through a second rotating shaft, one end of the tripping lever is connected with the switching part of the reset lever in a hooking mode, the other end of the tripping lever is arranged right opposite to the trigger rod, and the trigger rod is connected with the driving mechanism.

7. The trip reset structure for a bypass switch of claim 6, wherein: the surface of the switching part of the reset lever is provided with a groove matched with one end of the handle, a third channel for allowing one end of the tripping lever to pass through is arranged in the reset lever, and a reset elastic sheet in a bending angle shape is arranged between one end of the tripping lever and the inner wall of the third channel.

8. The trip reset structure for a bypass switch of claim 7, wherein: the end part of one end of the tripping lever is provided with a right-angle bayonet, and the end part of the switching part of the reset lever is provided with an oblique-angle bulge matched with the right-angle bayonet.

9. The trip reset structure for a bypass switch of claim 7, wherein: the core frame comprises a first U-shaped cavity, a vertical plate of the first U-shaped cavity is connected with two transverse plates of a second U-shaped cavity and the side surface of one vertical plate, a through hole matched with a disc spring is formed in the center of the vertical plate of the first U-shaped cavity, a cavity of the second U-shaped cavity is used for placing a rotary horizontal pushing mechanism, and a cavity of the first U-shaped cavity is used for placing a driving mechanism;

the circle center of the cross section of the second channel of the reset lever and the circle center of the circular part are on the same straight line, and the axes of the first channel and the third channel are parallel to each other and are perpendicular to the axis of the second channel.

Images