CN210779784U

CN210779784U - Handle sliding mechanism and draw-out type circuit breaker thereof

Info

Publication number: CN210779784U
Application number: CN201921830254.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shanghai Liangcheng Electromechanical Technology Co Ltd
Current assignee: Shanghai Liangcheng Electromechanical Technology Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-16
Anticipated expiration: 2029-10-30

Abstract

The utility model provides a handle slide mechanism and pull-out type circuit breaker thereof. After the circuit breaker body is placed in the drawer seat, the circuit breaker body is conveniently pushed to an isolation position, and the circuit breaker body is pulled out from the isolation position to a taking-out position. In order to realize the aim, the handle sliding mechanism comprises a handle, a secondary sliding structure formed by two sliding plates, an upper sliding rail, a lower sliding rail and a guide piece, wherein a primary sliding plate is slidably arranged on the secondary sliding plate through the guide piece, and a secondary sliding plate is arranged between the upper sliding rail and the lower sliding rail and can slide in sliding grooves of the upper sliding rail and the lower sliding rail; the handle is rotatably arranged on the sliding plate. By using the handle sliding mechanism, the breaker body is conveniently pushed to the isolation position of the drawer device and pulled out from the isolation position, and the breaker is conveniently taken out. A plurality of stop device in the mechanism is favorable to handle folding and expansion, slide to target in place, and the design has concave-convex structure handle, the operation of being convenient for. The mechanism has simple structure, reliable action and convenient installation.

Description

Handle sliding mechanism and draw-out type circuit breaker thereof

Technical Field

The utility model relates to an electrical apparatus switch, especially a circuit breaker with drawer seat.

Background

The withdrawable circuit breaker has been widely used due to convenience in repair and maintenance. The drawer type circuit breaker can be divided into a circuit breaker body and a drawer seat, the circuit breaker body can be shaken in and out of the drawer seat, and the circuit breaker body is connected into an external main loop through a connecting component inside the drawer seat after being shaken into the drawer seat.

The drawer seat comprises a sliding system for bearing and installing the breaker body, the sliding system is driven by an operating part or a handle to adjust the breaker body to move forwards or backwards, and the breaker is arranged at different working positions, namely an innermost 'connection' position, a middle 'test' position and an outermost 'separation' position: the circuit breaker body is connected with the main loop and the secondary loop of the drawer seat, and the circuit breaker is in a normal working state; in the test position, the main circuit of the circuit breaker body is separated from the main circuit of the drawer seat, the secondary circuit is connected, and the circuit breaker is in a test state; in the separation position, the circuit breaker body is separated from the main circuit and the secondary circuit of the drawer seat, and the circuit breaker is in a detachable state.

The circuit breaker body is generally put on the slide mechanism of drawer seat earlier, then pushes away the isolated position again, and corresponding structure on the circuit breaker body all is located the corresponding structure of drawer seat at this moment, can operate the drawer seat through the crank handle, shakes the circuit breaker into the drawer seat to finally reach "connection" position. If need change the circuit breaker body, after the outage, operate the drawer seat through the rocking handle, shake out the drawer seat to the circuit breaker to finally reach "keep apart" position, at this moment need pull out a bit distance again the circuit breaker body, so that take out the body. Generally, the circuit breaker body is pushed to an isolation position, and the pushing force is directly applied to the front surface of the circuit breaker, so that the operation is very irregular and difficult to apply force for operation; or when the circuit breaker body is pulled out from the isolation position, pulling force is generally applied to the side face of the circuit breaker body, so that the circuit breaker body is pulled out for a certain stroke, and the circuit breaker is convenient to take out.

Disclosure of Invention

The utility model aims at providing a handle slide mechanism and use pull-out circuit breaker of this mechanism, after putting the drawer seat to the circuit breaker body, make things convenient for personnel to operate propelling movement body to isolated position to and further pull out the circuit breaker body from isolated position and take out the position.

In order to achieve the purpose, the utility model designs a handle sliding mechanism, which comprises a handle, two sliding plates forming a secondary sliding structure, an upper sliding rail, a lower sliding rail and a guiding piece, wherein the primary sliding plate is slidably arranged on the secondary sliding plate through the guiding piece, and the secondary sliding plate is arranged between the upper sliding rail and the lower sliding rail and can slide in the sliding grooves of the upper sliding rail and the lower sliding rail; the handle is rotatably arranged on a mounting pin on the primary sliding plate.

The handle comprises a handle, a limiting part and a pull rod, wherein the handle is positioned at one end of the pull rod and is used for pushing or pulling out the sliding mechanism; spacing portion is through leaning on one-level slide, makes things convenient for operating personnel to apply the effort and operate slide mechanism.

Further, the handle has a folding position and an unfolding position, and a holding surface; when in the folding position, the holding surface is abutted against the upper surface of the upper slide rail; the first-stage sliding plate comprises a limiting piece, and the limiting piece can abut against a limiting part of the handle to limit at an unfolding position;

further, the lower sliding rail is provided with a mounting part, and a boss is arranged on the mounting part; the secondary sliding plate is provided with a limiting block, and after the handle is pulled, the secondary sliding plate slides for a certain distance, the limiting block abuts against the boss to limit.

Furthermore, the handle has the via hole, one-level slide has the mounting hole, the mounting pin passes behind the via hole fixed mounting on the mounting hole to guarantee that the handle can rotate around the mounting pin.

Furthermore, the first-level sliding plate comprises a sliding groove, and the guide piece penetrates through the sliding groove and is fixedly installed on the second-level sliding plate.

Furthermore, the handle also comprises a clamping groove, and when the handle is in a folded position, the lug boss enters the clamping groove;

furthermore, the holding surface of the handle is provided with a concave-convex structure, so that a person can hold the handle to apply force conveniently; the handle is also provided with a convex handle, and in the folding position, the handle is rotated from the folding position to the unfolding position by pulling the convex handle.

More closely, adopt above-mentioned handle slide mechanism's pull-out type circuit breaker, circuit breaker body, drawer device, handle slide mechanism has two, is located the both sides of drawer device.

The technical effect of the utility model, through designing neotype handle slide mechanism, conveniently push away the isolation position of drawer device to the circuit breaker body to and further pull out from isolation position, conveniently take out the circuit breaker. A plurality of limiting devices are designed, the folding and unfolding of the handle and the in-place of the sliding plate are facilitated, and the designed handle with the concave-convex structure facilitates the operation of an operator. The mechanism has simple structure, reliable action and convenient installation.

Drawings

Fig. 1 is a schematic view of a withdrawable circuit-breaker according to the present invention

Fig. 2 is a schematic view of a handle sliding mechanism of a drawer type circuit breaker

FIG. 3 is a schematic structural view of a handle device of a handle slide mechanism according to the present invention

FIG. 4 is a schematic structural view of a one-level slide plate of the handle slide mechanism of the present invention

FIG. 5 is a schematic structural view of a second stage slide plate of the handle slide mechanism of the present invention

Fig. 6 is a schematic structural view of the slide rail of the handle slide mechanism according to the present invention

FIG. 7 is a schematic view of the handle slide mechanism according to the present invention in a folded state

FIG. 8 is a schematic view showing a state where the handle slide mechanism of the present invention is pulled and extended to the maximum position

FIG. 9 is a schematic view of the state that the handle sliding mechanism starts to push the second stage sliding plate

FIG. 10 is a schematic view showing a state where the handle slide mechanism of the present invention pushes the second stage slide plate to the separation position

Detailed Description

A drawout circuit breaker generally comprises a circuit breaker body 1, a drawer arrangement 2.

The breaker body 1 is responsible for normal switching-on and switching-off of a circuit and emergency tripping during faults; the drawer device 2 can accommodate the circuit breaker body 1, so that the test of a secondary circuit and the like is conveniently carried out on the body 1 at a test position, and the maintenance of the body 1 is carried out at an isolation position.

The handle sliding mechanism comprises a handle 10, a primary sliding plate 20, a secondary sliding plate 30, an upper sliding rail 40, a lower sliding rail 50, a mounting pin 60 and a guide piece 70.

The handle 10 has a convex handle 101, a grip 102, a grip surface 103, a notch 104, a via hole 105, a stopper 106, and a pull rod 107. The pull rod 107 is mounted at right angles to the handle 102. The handle 102 is fixedly arranged at one end of the pull rod 107, one side of the handle is provided with a holding surface 103 which is convenient for holding by hands and has a concave-convex structure; the other end has a lug 101. The other end of the pull rod 107 is provided with a mounting hole 105, and one side of the mounting hole 105 is provided with a clamping groove 104 and the other side is provided with a limiting part 106. The engaging groove 104 is formed with a pawl having an opening at one side thereof, and the stopper portion 106 also has a stopper groove having an opening at one side thereof.

The first-stage sliding plate 20 is provided with an installation hole 201 for installing the limiting piece 60 and used for installing the installation pin 60; a stopper 202 for stopping the stopper 106 when the handle 10 is unfolded from the folded state, and restricting the maximum unfolded position of the handle 10; at least one guide groove 203, which allows the guide member 70 to slide in the guide groove 203.

The secondary slide plate 30 has two sliding edges 301, a mounting hole 302 for mounting the guide member 70, and a stopper 303. There is also at least one receiving slot 304 for receiving the relevant structure of the circuit breaker body 1, allowing the circuit breaker body to be placed on the drawer seat.

The first-stage sliding plate 20 can be called a first-stage sliding plate, the second-stage sliding plate 30 can be called a second-stage sliding plate, and the two sliding plates form a second-stage sliding structure.

The upper track 40 has

mounts

401 and 402 and the lower track 50 has

mounts

501 and 503. Each mounting member assembles the corresponding parts into a guide rail assembly to reduce processing cost and difficulty. The mounting part 503 of the lower rail 50 has a projection 502 which is inserted into a slot on the edge of the stopper 104 of the handle 10 for locking and positioning the handle 101.

According to fig. 2, the whole installation structure of the handle sliding mechanism of the present invention is further illustrated. The mounting pin 60 passes through the through hole 105 of the handle 10 and then is fixed on the mounting hole 201 of the primary slide plate 20, and the handle 10 can rotate around the mounting pin 60 after being mounted. The two guide members 70 respectively pass through the corresponding guide slots 203 of the primary sliding plate 20 and then are mounted in the mounting holes 302 of the secondary sliding plate 30, and can be riveted, welded or screwed and nut-mounted, and the guide members 70 can slide in the guide slots 203 after being mounted. The secondary slide 30 is mounted in and slidable within the slide channels of the

guide rails

40 and 50 by the

mounting members

401 and 402 and the

mounting members

501 and 503. The handle 10, the primary slide 20, the secondary slide 30, and the

guide rails

40 and 50 are mounted as an assembly, which is further mounted to the drawer base 2 by means of the mounting on the

guide rails

40 and 50. After the integral installation, the holding surface 103 of the handle 10 can abut against the upper surface of the guide rail 40 to form a folding mode, and the pull rod 107 of the handle 10 forms an angle of 90 degrees with the length direction of the primary sliding plate 20; the handle 10 can also be deployed so that the pull rod 107 is aligned with the length of the primary slide 20.

The operation of the present invention is further illustrated with reference to fig. 7 to 10.

In the initial state, the handle sliding mechanism is placed in the drawer base 2 in the folding mode of the handle 10, and at this time, the secondary sliding plate 30 is located at the leftmost side of the guide rail and abuts against the drawer base through the limiting of the limiting block 303, so that the secondary sliding plate 30 is located at the correct position. The leftmost side of the guide groove 203 of the primary slide 20 abuts against the guide member 70. The boss 502 of the mounting member 503 is fitted into the card slot 104 of the handle 10.

In order to mount the circuit breaker body 1 on the drawer base 2, the convex handle 101 of the handle 10 is firstly pulled by hand, so that the handle 10 rotates clockwise around the mounting pin 60 from the folded state until the limiting portion 106 of the handle 10 abuts against the limiting member 202 of the first-stage sliding plate 20, and the unfolded state of the handle 10 is formed, that is, the handle 102 is held by hand, and then force is applied in the direction away from the drawer base 2, so that the two-stage sliding structure formed by the second-stage sliding plate 30 and the first-stage sliding plate 20 moves in the direction away from the drawer base 2 until the limiting member 303 of the second-stage sliding plate 30 abuts against the boss 502 of the mounting member 503 and stops, as shown in fig. 8, the maximum extension state is.

Then, the circuit breaker body 1 can be placed on the drawer base 2, and the secondary slide 30 receiving groove 304 is embedded through the side structure of the body 1, so as to form a state of being integrally movable with the secondary slide 30. At this time, the handle 102 is held by hand and pushed, so that the entire handle slide mechanism moves in a direction to go deep into the drawer base 2. Due to the relatively large mass of the circuit breaker body 1, the secondary slide 30 is temporarily stationary, and the primary slide 20 slides first until the guide 70 abuts against the rightmost side of the guide groove 203, and the primary slide 20 slides in place, as shown in fig. 9.

When the handle 102 is pushed continuously, the secondary sliding plate 30 starts to slide on the guide rails 40 and 50, so that the circuit breaker body 1 moves in the direction deep into the drawer base 2 until the limiting block 303 of the secondary sliding plate 30 abuts against the corresponding structure of the drawer base 2, which indicates that the circuit breaker body 1 reaches the isolation position, the handle 102 is pushed continuously, and the circuit breaker body 1 cannot move in the direction deep into the drawer base 2 any more. At this time, the handle 102 is pulled, and the secondary slide 30 is not moved due to the self weight of the circuit breaker body 1, and the primary slide 20 is moved in a direction away from the drawer base 2 until the guide 70 abuts against the leftmost position of the guide groove 203 again, as shown in fig. 10. The handle 10 can then be rotated counterclockwise, eventually bringing the holding surface 103 against the upper surface of the guide rail 40, and returning to the initial folded state of the handle sliding mechanism, completing the process of mounting the circuit breaker body 1 to the drawer base 2 once, as shown in fig. 7.

If the circuit breaker body 1 needs to be taken out of the drawer base 2, the aforementioned operation is operated again from the initial position. In order to achieve the above operation more preferably, the handle slide mechanisms are disposed on both left and right sides of the drawer base 2.

While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A handle sliding mechanism comprises a handle (10), a first-stage sliding plate (20), a second-stage sliding plate (30), an upper sliding rail (40), a lower sliding rail (50) and a guide piece (70), wherein the first-stage sliding plate (20) is slidably arranged on the second-stage sliding plate (30) through the guide piece (70), the second-stage sliding plate (30) is arranged between the upper sliding rail (40) and the lower sliding rail (50) and can slide in sliding grooves of the upper sliding rail (40) and the lower sliding rail (50), it is characterized by also comprising a mounting pin (60) which is arranged on the primary sliding plate (20) and can rotatably mount a handle (10), wherein the handle (10) comprises a handle (102), a limiting part (106) and a pull rod (107), the handle (102) is positioned at one end of the pull rod (107), the limiting part (106) is abutted against the primary sliding plate (20) to facilitate an operator to apply acting force to operate the sliding mechanism.

2. The handle sliding mechanism according to claim 1, wherein the handle (10) has a folded position and an unfolded position, the holding surface (103) abuts against the upper surface of the upper sliding rail (40) when in the folded position, and the primary sliding plate (20) comprises a limiting member (202) which can abut against and limit the limiting member (106) of the handle (10) when in the unfolded position.

3. The handle sliding mechanism according to claim 2, wherein the lower sliding rail (50) has a mounting part (503), the mounting part (503) has a boss (502), the secondary sliding plate (30) further has a limiting block (303), and when the handle (10) is pulled, and the secondary sliding plate (30) slides for a certain distance, the limiting block (303) abuts against the boss (502) to form a limiting block.

4. The handle sliding mechanism according to claim 3, wherein the handle (10) has a through hole (105), the primary sliding plate (20) has a mounting hole (201), and the mounting pin (60) is fixedly mounted on the mounting hole (201) after passing through the through hole (105) and ensures that the handle (10) can rotate around the mounting pin (60).

5. A handle slide according to claim 4 wherein the primary slide (20) comprises a slot (203) and the guide (70) is fixedly mounted to the secondary slide (30) after passing through the slot (203).

6. A handle slide according to claim 5 wherein the handle (10) further comprises a catch (104), the boss (502) entering the catch (104) when in the folded position.

7. The handle sliding mechanism according to claim 6, wherein the grip surface (103) of the handle (10) has a concave-convex structure to facilitate a person to grip the handle (10) and apply force; and the handle is also provided with a convex handle (101), and in the folding position, the handle (10) is rotated from the folding position to the unfolding position by pulling the convex handle (101).

8. A handle slide according to claim 7 wherein the secondary slide (30) comprises a receiving slot (304).

9. A draw-out circuit breaker comprising a handle slide mechanism according to claim 8, further having a circuit breaker body (1), a drawer arrangement (2), the circuit breaker body (1) being mounted on the drawer arrangement (2) through the receiving slot (304).