CN117038400A - Automatic plugging device of circuit breaker - Google Patents

Abstract

The invention relates to the technical field of breaker installation, in particular to an automatic plugging device of a breaker, which comprises the following components: the middle part of the connecting plate is vertically provided with a rectangular through hole; and the positioning unit is connected to the connecting plate. When pegging graft the circuit breaker on the guide rail, need aim at the opening of guide rail with the circuit breaker plug through artificial mode, insert the slot of guide rail with the circuit breaker afterwards, because artifical counterpoint stability is low, need consume certain time just can ensure that the circuit breaker is accurate to peg graft on the guide rail, and have the too big problem in gap between the circuit breaker after a plurality of pegging graft to influence the rate of utilization in space on the guide rail. The positioning unit is matched with the plugging unit, so that the circuit breaker can be accurately plugged into the guide rail in the plugging process of the circuit breaker, the alignment step in the plugging process of the circuit breaker is reduced, and the plugging efficiency and accuracy of the circuit breaker are improved.

Description

Automatic plugging device of circuit breaker

Technical Field

The invention relates to the technical field of circuit breaker installation, in particular to an automatic plugging device of a circuit breaker.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time.

The circuit breaker is installed in the regulator cubicle before using generally first, and a plurality of circuit breakers make up and the combined action, and the circuit breaker is pegged graft on the guide rail of regulator cubicle generally, makes things convenient for the slip after the circuit breaker is pegged graft, also makes things convenient for the heat dissipation of circuit breaker.

When the existing circuit breaker is plugged into the guide rail, the power supply of the electrical cabinet is usually turned off, then the plug of the circuit breaker is aligned to the opening of the guide rail in a manual mode, the position of the plug is ensured to be aligned with the slot on the guide rail, then the circuit breaker is inserted into the slot of the guide rail, and then the installation stability of the circuit breaker is checked.

However, in the method, the circuit breaker needs to be accurately aligned to the guide rail in the plugging process of the circuit breaker, a certain time is required to be consumed to ensure that the circuit breaker is accurately plugged to the guide rail due to low manual alignment stability, and gaps are overlarge among the circuit breakers after plugging, so that the utilization rate of the space of the guide rail is affected.

Disclosure of Invention

Based on this, it is necessary to provide an automatic plugging device for a circuit breaker, which aims to solve the problems generated when the circuit breaker is plugged on a guide rail in the prior art.

In order to achieve the above purpose, the present invention is implemented by adopting the following technical scheme: an automatic plugging device for a circuit breaker, comprising: the connecting plate, rectangular through-hole has vertically been seted up at connecting plate middle part.

The locating unit is connected to the connecting plate, the locating unit is including installing the limiting plate of connecting plate rear end, has seted up square through-hole on the limiting plate, and the limiting plate the place ahead is provided with vertical connecting plate of running through and the first adjusting screw who rotates with the connecting plate to be connected, and first adjusting screw surface symmetry is provided with first screw thread tooth from top to bottom, and threaded connection has the locating part who runs through square through-hole on the first screw thread tooth.

The pushing unit is connected in the rectangular through hole and comprises a pushing plate which is connected in the rectangular through hole in a sliding mode, two sliding through holes are formed in the upper portion and the lower portion of the pushing plate in a symmetrical mode, positioning holes are formed in the middle of the pushing plate in a transverse mode, limiting columns which are inserted into the left side wall and the right side wall of the rectangular through hole are arranged at the rear of the pushing plate, and pushing parts used for pushing the positioning parts are connected in the sliding through holes.

The distance adjusting unit is connected to the connecting plate near the front side, the distance adjusting unit comprises a distance adjusting strip which transversely penetrates through and is connected to the connecting plate in a sliding mode, a sliding frame is arranged at the left end of the distance adjusting strip, and a positioning screw rod in threaded connection with the front end of the connecting plate is arranged at the front end of the distance adjusting strip.

The plug-in unit is in sliding connection in the sliding frame, the plug-in unit includes sliding connection the sliding rod in the sliding frame, and the plug-in part that is used for centre gripping circuit breaker is installed to the sliding rod rear end.

According to the embodiment of the invention, the positioning part comprises a positioning block which is connected to the outer surface of the first adjusting screw in a threaded manner, the positioning block is in sliding fit with the square through hole, a limiting frame which is of a U-shaped structure and is downward in opening is arranged at the upper end of the positioning block, a cylindrical rod is arranged at the rear end of the positioning block, a threaded column is arranged at the rear end of the cylindrical rod, a distance adjusting sleeve is connected to the outer surface of the threaded column in a threaded manner, a magnet is arranged at the rear end of the distance adjusting sleeve, and a limiting assembly is connected to the cylindrical rod.

According to the embodiment of the invention, the limiting component comprises an auxiliary through hole vertically formed in the cylindrical rod, a limiting block is slidably connected in the auxiliary through hole, an auxiliary plate is arranged at the rear end of the limiting block near the upper side, a reset spring is arranged between the auxiliary plate and the cylindrical rod, and an inclined surface is arranged at the opposite back end of the limiting block near the front side.

According to the embodiment of the invention, the pushing component comprises a guide post vertically arranged in the sliding through hole, an auxiliary sliding block is sleeved on the outer surface of the guide post, a pushing frame with a rectangular structure is arranged at the rear end of the auxiliary sliding block, a pushing rod is arranged at the rear end of the pushing frame, and the rear end of the pushing rod penetrates through the limiting frame and is provided with a slope matched with the slope.

According to the embodiment of the invention, the plug-in component comprises a connecting block arranged at the rear end of the sliding rod, a square plate is arranged at the rear end of the connecting block, a sliding opening is formed in the left end of the square plate, a sliding baffle plate longitudinally penetrates through the square plate near the right end, the front end of the sliding baffle plate penetrates through the sliding rod and is provided with a lifting plate, the connecting block is connected with a clamping assembly, and a pushing assembly is arranged at the left end of the connecting block.

According to the embodiment of the invention, the clamping assembly comprises a second adjusting screw rod vertically penetrating through and rotatably connected to the middle part of the connecting block, second thread teeth are symmetrically arranged on the outer surface of the second adjusting screw rod up and down, a lifting plate is connected to the second thread teeth in a threaded mode, an L-shaped plate is arranged at the rear end of the lifting plate, a guide bar vertically penetrates through the middle part of the lifting plate, and the guide bar is fixedly connected with the connecting block.

According to the embodiment of the invention, the pushing component comprises a guide rod arranged at the left end of the connecting block, a pushing plate is sleeved on the outer surface of the guide rod in a sliding manner, the pushing plate is positioned in the sliding opening, and a connecting spring is arranged between the right end of the pushing plate and the connecting block.

According to the embodiment of the invention, a plurality of uniformly distributed balls are rotatably connected to one end of the transverse section of the L-shaped plate, which is close to the square plate.

In summary, the present invention includes at least one of the following beneficial technical effects: 1. the clamping assembly and the pushing assembly are adopted, so that the size of the device can be adjusted, the circuit breakers with different sizes can be clamped and limited in a certain range, and the circuit breakers are plugged on the guide rail through the sliding rod, so that the use occasion of the device is increased, and the practicability of the device is improved.

2. The adopted positioning unit is matched with the plugging unit, so that the circuit breaker can be accurately plugged on the guide rail in the plugging process of the circuit breaker, the alignment step in the plugging process of the circuit breaker is reduced, and the plugging efficiency and accuracy of the circuit breaker are improved.

3. The adopted plug-in unit can automatically push the circuit breakers after the plug-in of the circuit breakers is completed, so that the circuit breakers are in a close-fitting state after the plug-in of the circuit breakers is completed, the utilization rate of space on the guide rail is improved, and the problem that the circuit breakers with the required number cannot be plugged in the guide rail is avoided.

4. The plug-in unit that adopts can carry out the installation of circuit breaker in the outside of regulator cubicle, pushes away it to the inside guide rail of regulator cubicle again to need not operating personnel and operating in the inside narrow and small space of regulator cubicle, avoid taking place the problem that the mistake bumped, make things convenient for the installation of circuit breaker.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic perspective view of a first perspective view of an automatic plugging device of a circuit breaker according to an embodiment of the present invention.

Fig. 2 shows a second perspective view of an automatic plugging device for a circuit breaker according to an embodiment of the present invention.

Fig. 3 shows a front view of an automatic plugging device for a circuit breaker according to an embodiment of the present invention.

Fig. 4 shows a left side view of the automatic plugging device for a circuit breaker according to an embodiment of the present invention.

Fig. 5 shows a cross-sectional view in the direction A-A of fig. 3.

Fig. 6 shows a schematic structural diagram of a positioning component of an automatic plugging device of a circuit breaker according to an embodiment of the present invention.

Fig. 7 shows a schematic structural diagram of a plug part of an automatic plug device of a circuit breaker according to an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view showing the structure of a plug part of an automatic plug device for a circuit breaker according to an embodiment of the present invention.

Wherein the above figures include the following reference numerals: 1. a connecting plate; 11. rectangular through holes; 2. a positioning unit; 21. a limiting plate; 211. square through holes; 22. a first adjusting screw; 23. a positioning member; 231. a positioning block; 232. a limit frame; 233. a cylindrical rod; 234. a threaded column; 235. a distance adjusting sleeve; 236. a limit component; 2361. an auxiliary through hole; 2362. a limiting block; 2363. a return spring; 3. a pushing unit; 31. a pushing plate; 32. a sliding through hole; 33. positioning holes; 34. a limit column; 35. a pushing member; 351. a guide post; 352. pushing the frame; 353. pushing the rod; 4. a distance adjusting unit; 41. a distance adjusting strip; 42. a sliding frame; 43. positioning a screw; 5. a plug-in unit; 51. a slide bar; 52. a plug-in component; 521. a connecting block; 522. a square plate; 523. a sliding opening; 524. a sliding baffle; 525. a clamping assembly; 5251. a second adjusting screw; 5252. a lifting plate; 5253. an L-shaped plate; 5254. a guide bar; 526. a pushing assembly; 5261. a guide rod; 5262. a pushing plate; 5263. and a connecting spring.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1-5, an automatic plugging device of a circuit breaker comprises a connecting plate 1, wherein a rectangular through hole 11 is vertically formed in the middle of the connecting plate 1.

Referring to fig. 2 and 5, the automatic plugging device for circuit breaker further comprises a positioning unit 2, the positioning unit 2 is connected to the connecting plate 1, the positioning unit 2 comprises a limiting plate 21 installed at the rear end of the connecting plate 1, a square through hole 211 is formed in the limiting plate 21, a first adjusting screw 22 vertically penetrating through the connecting plate 1 and rotationally connected with the connecting plate 1 is arranged in front of the limiting plate 21, first thread teeth are symmetrically arranged on the outer surface of the first adjusting screw 22, and positioning components 23 penetrating through the square through hole 211 are connected to the first thread teeth in a threaded manner.

Referring to fig. 2 and 5, in a specific operation, according to the width of the circuit breaker installation guide rail, the first adjusting screw 22 is manually rotated, and the first adjusting screw 22 drives the two positioning members 23 to relatively slide in the two square through holes 211, so that the distance between the two positioning members 23 is changed to match the width of the guide rail.

Referring to fig. 5 and 6, the positioning component 23 includes a positioning block 231 screwed on the outer surface of the first adjusting screw 22, the positioning block 231 is slidably matched with the square through hole 211, a limiting frame 232 having a U-shaped structure and having a downward opening is installed at the upper end of the positioning block 231, a cylindrical rod 233 is installed at the rear end of the positioning block 231, a threaded column 234 is installed at the rear end of the cylindrical rod 233, a distance adjusting sleeve 235 is screwed on the outer surface of the threaded column 234, a magnet is installed at the rear end of the distance adjusting sleeve 235, and a limiting assembly 236 is connected to the cylindrical rod 233.

Referring to fig. 5 and 6, in specific operation, according to the distance between the guide rail and the rear wall of the electrical cabinet, the distance adjusting sleeve 235 is rotated on the threaded column 234 and moves along the length direction of the threaded column 234, so that the distance between the magnet at the rear end of the distance adjusting sleeve 235 and the limit plate 21 is matched with the distance between the guide rail and the rear wall of the electrical cabinet, then the first adjusting screw 22 is rotated, the first adjusting screw 22 drives the two positioning blocks 231 to relatively slide in the two square through holes 211, the two positioning blocks 231 drive the threaded column 234 and the distance adjusting sleeve 235 to move to corresponding positions through the cylindrical rods 233, then the connecting plate 1 drives the two positioning blocks 231 to move in the direction of the guide rail through the first adjusting screw 22, the two positioning blocks 231 drive the threaded column 234 and the distance adjusting sleeve 235 to move in the direction of the guide rail through the cylindrical rods 233 until the magnet at the rear end of the distance adjusting sleeve 235 is magnetically attracted to the rear wall of the electrical cabinet, at this moment, the limit plate 21 is stopped from being pushed to be tightly attached to the front end of the guide rail, the two cylindrical rods 233 are located at the upper end and lower ends of the guide rail, the two positioning blocks 233 are located at the two ends of the two magnet and the two initial ends 21 are located at the two initial ends, and the two initial positions are located at the two initial positions and multiple positions are achieved, and the initial positions of the two initial positions are achieved, and the functions are achieved.

Referring to fig. 2 and 5, the automatic plugging device for circuit breaker further includes a pushing unit 3, the pushing unit 3 is connected in the rectangular through hole 11, the pushing unit 3 includes a pushing plate 31 slidably connected in the rectangular through hole 11, two sliding through holes 32 are symmetrically provided on the pushing plate 31 up and down, a positioning hole 33 is transversely provided in the middle of the pushing plate 31, a limiting post 34 plugging in the left and right side walls of the rectangular through hole 11 is provided at the rear of the pushing plate 31, and a pushing member 35 for pushing the positioning member 23 is connected in the sliding through hole 32.

Referring to fig. 5, the pushing member 35 includes a guide post 351 vertically installed in the sliding through hole 32, an auxiliary sliding block sleeved on the outer surface of the guide post 351, a pushing frame 352 having a rectangular structure installed at the rear end of the auxiliary sliding block, and a pushing rod 353 installed at the rear end of the pushing frame 352.

Referring to fig. 2, fig. 5 and fig. 6, in a specific operation, in an initial state, the limit post 34 is in a separated state from the rectangular through hole 11, in the process of adjusting the distance between the two positioning blocks 231, the two positioning blocks 231 drive the two pushing rods 353 to move through the limit frame 232, the two pushing rods 353 drive the auxiliary slide block to move along the length direction of the guide post 351 through the pushing frame 352, thereby adjusting the distance between the two pushing rods 353, after the limit plate 21 is tightly attached to the front end of the guide rail, the pushing plate 31 is pushed to move, the pushing plate 31 drives the pushing frame 352 to move through the guide post 351 and the auxiliary slide block, the pushing frame 352 drives the pushing rods 353 to move, the limiting component 236 is pushed, the limiting component 236 moves out of the cylindrical rod 233 and tightly attaches to the rear end of the guide rail, so that secondary limiting is realized, the stability of connection between the cylindrical rod 233 and the guide rail is improved, the problem that the connecting plate 1 is inclined and falls in the operation is avoided, then the pushing plate 31 moves to drive the positioning hole 33 to move to the inserting position of the limit post 34, and then the limit post 34 is inserted into the left side wall 11 and the right side wall of the rectangular through hole 31.

Referring to fig. 6, the limiting component 236 includes an auxiliary through hole 2361 vertically formed in the cylindrical rod 233, a limiting block 2362 is slidably connected in the auxiliary through hole 2361, an auxiliary plate is installed at a position close to the upper side of the rear end of the limiting block 2362, a return spring 2363 is installed between the auxiliary plate and the cylindrical rod 233, an inclined plane is disposed at a position close to the front side of the rear end of the limiting block 2362, and the rear end of the pushing rod 353 penetrates through the limiting frame 232 and is provided with a slope matched with the inclined plane.

Referring to fig. 2, fig. 5 and fig. 6, in a specific operation, the moving pushing frame 352 drives the pushing rod 353 to move towards the limiting block 2362, the slope surface at the end of the pushing rod 353 pushes the slope surface at the end of the limiting block 2362, and the limiting block 2362 moves out of the cylindrical rod 233 under force and moves to the rear end of the guide rail, so that the function of secondary limiting on the cylindrical rod 233 is realized, and the cylindrical rod 233 is prevented from falling off in the operation.

Referring to fig. 2 and 5, the automatic plugging device of the circuit breaker further comprises a distance adjusting unit 4, the distance adjusting unit 4 is connected to the connecting plate 1 near the front side, the distance adjusting unit 4 comprises a distance adjusting bar 41 which transversely penetrates through and is connected to the connecting plate 1 in a sliding manner, a sliding frame 42 is mounted at the left end of the distance adjusting bar 41, and a positioning screw 43 in threaded connection with the front end of the connecting plate 1 is arranged at the front end of the distance adjusting bar 41.

Referring to fig. 2 and 5, in specific operation, according to the position of the circuit breaker to be plugged on the guide rail, the distance adjusting bar 41 is moved, the distance adjusting bar 41 drives the sliding frame 42 to move, and then the distance adjusting bar 41 is tightly propped up by the positioning screw 43, so that the distance adjusting bar 41 is limited.

Referring to fig. 2, 5 and 7, the automatic plugging device for the circuit breaker further comprises a plugging unit 5, wherein the plugging unit 5 is slidably connected in the sliding frame 42, the plugging unit 5 comprises a sliding rod 51 slidably connected in the sliding frame 42, and a plugging component 52 for clamping the circuit breaker is mounted at the rear end of the sliding rod 51.

Referring to fig. 7 and 8, the plugging member 52 includes a connection block 521 mounted at the rear end of the sliding rod 51, a square plate 522 mounted at the rear end of the connection block 521, a sliding opening 523 formed at the left end of the square plate 522, a sliding baffle 524 longitudinally penetrating the square plate 522 near the right end, a lifting plate mounted at the front end of the sliding baffle 524 penetrating the sliding rod 51, a clamping assembly 525 connected to the connection block 521, and a pushing assembly 526 mounted at the left end of the connection block 521.

Referring to fig. 2, 5, 7 and 8, in particular, in an initial state, the square plate 522 is close to the sliding frame 42 and is located outside the electrical cabinet, when a plurality of circuit breakers are plugged in sequence, the moving sliding frame 42 drives the plugging component 52 to move to the plugging position of the circuit breakers through the sliding rod 51, the clamping range of the clamping component 525 is adjusted to match the circuit breakers, then the circuit breakers are plugged in the space formed by the pushing component 526, the square plate 522, the sliding baffle 524 and the clamping component 525, the pushing component 526 cooperates with the sliding baffle 524 to limit the horizontal movement of the circuit breakers, the clamping component 525 limits the vertical direction of the circuit breakers, then the sliding rod 51 moves towards the direction of the guide rail, the sliding rod 51 drives the circuit breakers to move through the square plate 522 and the clamping component 525 and is plugged in the guide rail, in the process, the circuit breakers can be plugged in the guide rail accurately, the time for aligning the relay is shortened, the plugging efficiency of the circuit breaker is improved, then the sliding baffle 524 is pulled from the front end of the sliding rod 51, the sliding baffle 524 passes through the sliding rod 51 and is drawn out from the square plate 522, the pushing component 526 pushes the circuit breaker plugged on the guide rail to the direction of the limiting component 236 and enables the circuit breaker to be closely attached to the limiting plate 21, so that the circuit breaker is pushed to a working position, then the sliding rod 51 drives the plugging component 52 to reset, the sliding baffle 524 is reinserted into the square plate 522, the distance adjusting bar 41 is pushed to move by the distance of one circuit breaker width, the previous circuit breaker installation plugging step is repeated, the pushing component 526 can automatically push the circuit breakers which are plugged completely, the circuit breakers are tightly attached, the situation that a large amount of space of the guide rail is occupied after the circuit breakers are plugged is avoided, the number of the circuit breakers plugged on the guide rail is insufficient is avoided, the step of manually pushing the circuit breakers is also reduced, the plugging efficiency of the circuit breakers is improved, after the circuit breakers are plugged, the limit posts 34 are taken out from the left and right side walls of the rectangular through holes 11 and the positioning holes 33, the pushing plate 31 is reset, the connecting plate 1 is taken out from the electrical cabinet, and the circuit breakers are plugged.

Referring to fig. 7 and 8, the clamping assembly 525 includes a second adjusting screw 5251 vertically penetrating and rotatably connected to the middle of the connecting block 521, second screw threads are symmetrically disposed on the outer surface of the second adjusting screw 5251, a lifting plate 5252 is screwed on the second screw threads, an L-shaped plate 5253 is mounted at the rear end of the lifting plate 5252, a guide bar 5254 vertically penetrates through the middle of the lifting plate 5252, and the guide bar 5254 is fixedly connected with the connecting block 521.

Referring to fig. 2, fig. 5, fig. 7 and fig. 8, before the circuit breaker is plugged, the second adjusting screw 5251 is rotated, the second adjusting screw 5251 drives the two L-shaped plates 5253 through the two lifting plates 5252 to move so as to enable the second adjusting screw to be matched with the front portion of the circuit breaker in height, the guide bar 5254 plays a guiding role in the moving process of the lifting plates 5252, and when the circuit breaker is in operation, the front portion of the circuit breaker needs to be plugged between the two L-shaped plates 5253 first, and it is required to be stated that in order to improve the clamping effect of the L-shaped plates 5253 on the circuit breaker, flexible rubber layers (not shown in the drawing) are arranged on opposite surfaces of the L-shaped plates 5253.

Referring to fig. 7 and 8, the pushing assembly 526 includes a guide rod 5261 mounted at the left end of the connecting block 521, a pushing plate 5262 is slidably sleeved on the outer surface of the guide rod 5261, the pushing plate 5262 is located in the sliding opening 523, and a connecting spring 5263 is mounted between the right end of the pushing plate 5262 and the connecting block 521.

Referring to fig. 7 and 8, a plurality of balls uniformly distributed are rotatably connected to the end of the L-shaped plate 5253 near the square plate 522.

Referring to fig. 2, 5, 7 and 8, in specific operation, when the circuit breaker is plugged, the circuit breaker pushes the push plate 5262, the push plate 5262 is stressed to stretch the connecting spring 5263, after the circuit breaker is plugged between the two L-shaped plates 5253, the connecting spring 5263 in a stretched state drives the push plate 5262 to squeeze the circuit breaker on the sliding baffle 524, so that the circuit breaker is limited, after the circuit breaker is plugged on the guide rail, the sliding baffle 524 is separated from the circuit breaker, the connecting spring 5263 in a stretched state drives the push plate 5262 to push the circuit breaker towards the limiting plate 21 or the circuit breaker which is plugged completely, so that the circuit breakers are plugged neatly, and the balls on the L-shaped plates 5253 facilitate movement of the circuit breaker.

In the description of the embodiments of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., are based on those shown in the drawings, are merely for convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.

Claims (8)

1. An automatic plugging device of a circuit breaker is characterized in that: comprises a connecting plate (1), wherein a rectangular through hole (11) is vertically formed in the middle of the connecting plate (1);

the positioning unit (2) is connected to the connecting plate (1), the positioning unit (2) comprises a limiting plate (21) arranged at the rear end of the connecting plate (1), a square through hole (211) is formed in the limiting plate (21), a first adjusting screw (22) vertically penetrating through the connecting plate (1) and rotationally connected with the connecting plate (1) is arranged in front of the limiting plate (21), first thread teeth are symmetrically arranged on the outer surface of the first adjusting screw (22) up and down, and positioning components (23) penetrating through the square through hole (211) are connected to the first thread teeth in a threaded mode;

the pushing unit (3) is connected in the rectangular through hole (11), the pushing unit (3) comprises a pushing plate (31) which is connected in the rectangular through hole (11) in a sliding way, two sliding through holes (32) are symmetrically formed in the upper and lower directions of the pushing plate (31), a positioning hole (33) is transversely formed in the middle of the pushing plate (31), limit columns (34) which are inserted into the left side wall and the right side wall of the rectangular through hole (11) are arranged behind the pushing plate (31), and pushing parts (35) used for pushing the positioning parts (23) are connected in the sliding through holes (32);

the distance adjusting unit (4) is connected to the position, close to the front side, of the connecting plate (1), the distance adjusting unit (4) comprises a distance adjusting bar (41) which transversely penetrates through and is connected to the connecting plate (1) in a sliding mode, a sliding frame (42) is arranged at the left end of the distance adjusting bar (41), and a positioning screw (43) in threaded connection with the front end of the connecting plate (1) is arranged at the front end of the distance adjusting bar (41);

the plug-in unit (5) is connected in the sliding frame (42) in a sliding mode, the plug-in unit (5) comprises a sliding rod (51) connected in the sliding frame (42) in a sliding mode, and a plug-in component (52) used for clamping the circuit breaker is arranged at the rear end of the sliding rod (51).

2. The automatic plugging device for circuit breaker according to claim 1, wherein: locating part (23) are in including threaded connection locating piece (231) of first adjusting screw (22) surface, locating piece (231) and square through-hole (211) sliding fit, locating piece (231) upper end is installed and is U type structure and opening spacing frame (232) down, cylinder pole (233) are installed to locating piece (231) rear end, screw thread post (234) are installed to cylinder pole (233) rear end, screw thread post (234) surface threaded connection has roll adjustment cover (235), magnet is installed to roll adjustment cover (235) rear end, be connected with spacing subassembly (236) on cylinder pole (233).

3. The automatic plugging device for circuit breaker according to claim 2, wherein: the limiting component (236) comprises an auxiliary through hole (2361) vertically formed in the cylindrical rod (233), a limiting block (2362) is connected in the auxiliary through hole (2361) in a sliding mode, an auxiliary plate is installed at the position, close to the upper side, of the rear end of the limiting block (2362), a reset spring (2363) is installed between the auxiliary plate and the cylindrical rod (233), and an inclined plane is arranged at the position, close to the front side, of the opposite back end of the limiting block (2362).

4. The automatic plugging device for circuit breaker according to claim 1, wherein: the pushing component (35) comprises a guide column (351) vertically installed in the sliding through hole (32), an auxiliary sliding block is sleeved on the outer surface of the guide column (351), a pushing frame (352) with a rectangular structure is installed at the rear end of the auxiliary sliding block, a pushing rod (353) is installed at the rear end of the pushing frame (352), and the rear end of the pushing rod (353) penetrates through the limiting frame (232) and is provided with a slope matched with the slope.

5. The automatic plugging device for circuit breaker according to claim 1, wherein: the plug-in component (52) comprises a connecting block (521) arranged at the rear end of the sliding rod (51), a square plate (522) is arranged at the rear end of the connecting block (521), a sliding opening (523) is formed in the left end of the square plate (522), a sliding baffle (524) longitudinally penetrates through the square plate (522) near the right end, the front end of the sliding baffle (524) penetrates through the sliding rod (51) and is provided with a lifting plate, a clamping assembly (525) is connected to the connecting block (521), and a pushing assembly (526) is arranged at the left end of the connecting block (521).

6. The automatic plugging device for circuit breaker according to claim 5, wherein: the clamping assembly (525) comprises a second adjusting screw (5251) which vertically penetrates through and is rotationally connected to the middle of the connecting block (521), second thread teeth are symmetrically arranged on the outer surface of the second adjusting screw (5251), lifting plates (5252) are connected to the second thread teeth in a threaded mode, L-shaped plates (5253) are arranged at the rear ends of the lifting plates (5252), guide strips (5254) are vertically arranged in the middle of the lifting plates (5252) in a penetrating mode, and the guide strips (5254) are fixedly connected with the connecting block (521).

7. The automatic plugging device for circuit breaker according to claim 5, wherein: the pushing assembly (526) comprises a guide rod (5261) arranged at the left end of the connecting block (521), a pushing plate (5262) is sleeved on the outer surface of the guide rod (5261) in a sliding mode, the pushing plate (5262) is located in the sliding opening (523), and a connecting spring (5263) is arranged between the right end of the pushing plate (5262) and the connecting block (521).

8. The automatic plugging device for circuit breaker according to claim 6, wherein: one end of the transverse section of the L-shaped plate (5253) close to the square plate (522) is rotatably connected with a plurality of uniformly distributed balls.