Test tool of vacuum circuit breaker

Abstract

The utility model discloses a test tool of a vacuum circuit breaker, which comprises a bottom plate and a connection placing mechanism, the connection placing mechanism is arranged on the bottom plate and comprises two vertical plates, and the two vertical plates are respectively arranged on the left side and the right side of the top of the bottom plate. Three placement plates and a limiting clamping mechanism are arranged on the opposite sides of the two vertical plates, the limiting clamping mechanism is arranged on the placement plates, the limiting clamping mechanism comprises fixing grooves, the number of the fixing grooves is three, the fixing grooves are formed in the tops of the three placement plates correspondingly, and sliding grooves are formed in the sides, close to the placement plates, of the front faces of the vertical plates; sliding blocks matched with the sliding grooves are installed on the left side and the right side of the vertical plate located in the middle. According to the utility model, through the mutual cooperation of the vertical plate, the placing plate, the sliding grooves, the sliding blocks, the magnets and the iron blocks, the position of the placing plate in use can be adjusted conveniently, so that vacuum circuit breakers with different sizes can be placed conveniently, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum circuit breaker testing, in particular to a testing tool for a vacuum circuit breaker. Background Art

[0002] A vacuum circuit breaker is a circuit breaker that uses vacuum as an insulating arc-extinguishing medium. The moving and static contacts of the circuit breaker are in a high-vacuum arc-extinguishing chamber. In some special fields, such as being provided for use in coal mines, vacuum circuit breakers require aging tests, which require the use of test fixtures. The vacuum circuit breaker is placed on the test fixture and then pushed into the test aging room for aging testing.

[0003] According to the application number: CN202021919541.1, a test fixture for a vacuum circuit breaker includes multiple groups of test units that are detachably connected from top to bottom, push handles are installed at both ends of a test unit, and a plurality of rollers are installed on the test unit at the lower end. Each test unit includes a vertical pole, a connecting piece, a first cross bar and a second cross bar. Connectors are installed at the upper and lower ends of the four vertical poles. The connecting piece is a cylindrical structure connected up and down. Two adjacent sides of each connecting piece are provided with through holes, and the through holes of two adjacent connecting pieces on the left and right are connected by a first cross bar, and the through holes of two adjacent connecting pieces on the front and back are connected by a second cross bar. A fixing plate is connected between two adjacent first cross bars, and a wire rod is also connected between two adjacent vertical columns on the left and right, and a plurality of junction boxes are installed on the wire rod.

[0004] In the above case, the vacuum circuit breaker is placed on a test fixture for aging testing. Since the test fixture needs to move the vacuum circuit breaker, it is easy for the vacuum circuit breaker to fall from the test stand, which seriously affects the stability of the vacuum circuit breaker during placement. It is also inconvenient to place vacuum circuit breakers of different sizes, reducing the flexibility and applicability during use. Utility Model Content

[0005] The purpose of the utility model is to provide a test fixture for a vacuum circuit breaker to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a test fixture for a vacuum circuit breaker, comprising:

[0007] Base plate;

[0008] A connection placement mechanism, the connection placement mechanism is arranged on the bottom plate, the connection placement mechanism comprises a vertical plate, the number of the vertical plates is two and they are respectively installed on the left and right sides of the top of the bottom plate, and three placement plates are arranged on the opposite side of the two vertical plates;

[0009] The position limiting clamping mechanism is arranged on the placement plate, and the position limiting clamping mechanism includes fixing grooves, and the number of the fixing grooves is three and they are respectively opened on the tops of the three placement plates.

[0010] Preferably, a slide groove is provided on the front side of the vertical plate and close to the side of the placement plate, and sliding blocks adapted to the slide groove are installed on the left and right sides of the vertical plate located in the middle position, and the side of the sliding block close to the slide groove passes through the slide groove and extends into the interior thereof.

[0011] Preferably, a magnet is installed on the back of the slider, an iron block used in conjunction with the magnet is installed on the back of the inner wall of the slide groove, and a back plate is installed on the top of the bottom plate and on the back of the placement plate.

[0012] Preferably, a forward-rotating threaded rod and a reverse-rotating threaded rod are movably connected in the grooves on the left and right sides of the inner wall of the fixed groove through bearings respectively, and the right end of the forward-rotating threaded rod and the left end of the reverse-rotating threaded rod are fixedly connected through a fixed shaft.

[0013] Preferably, the surface of the forward-rotating threaded rod and the surface of the reverse-rotating threaded rod are both threadedly connected with threaded blocks, and a clamping plate is installed on the top of the threaded block.

[0014] Preferably, a rotating block is provided at the bottom of the placement plate, a rotating shaft is installed on the top of the rotating block, the top of the rotating shaft passes through the fixed groove and extends into the interior thereof, a driving gear is installed at the top of the rotating shaft output shaft, a driven gear meshing with the driving gear is installed on the surface of the fixed shaft, and limit stops are installed at the bottom of the placement plate and on the left and right sides of the rotating block.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model facilitates the adjustment of the position of the placement plate when in use by the cooperation of the vertical plate, the placement plate, the slide groove, the slider, the magnet and the iron block, thereby facilitating the placement of vacuum circuit breakers of different sizes and improving applicability.

[0017] 2. The utility model facilitates the clamping and fixing of the vacuum circuit breaker through the mutual cooperation of the fixing groove, the forward threaded rod, the reverse threaded rod, the fixed shaft, the threaded block, the clamping plate, the rotating block, the rotating shaft, the driving gear, the driven gear and the limit stopper, thereby ensuring the stability of the vacuum circuit breaker when placed on the placement plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a structural cross-sectional view of the front view of the utility model;

[0020] Figure 3 This is a structural cross-sectional view of the vertical plate, chute, magnet and iron block of the utility model.

[0021] In the figure: 1 bottom plate, 2 connecting placement mechanism, 21 vertical plate, 22 placement plate, 23 slide groove, 24 slider, 25 magnet, 26 iron block, 27 back plate, 3 limit clamping mechanism, 31 fixed groove, 32 forward threaded rod, 33 reverse threaded rod, 34 fixed shaft, 35 threaded block, 36 clamping plate, 37 rotating block, 38 rotating shaft, 39 driving gear, 310 driven gear, 311 limit stopper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 A test fixture for a vacuum circuit breaker comprises: a bottom plate 1, four corners of the bottom of the bottom plate 1 are fixedly connected with universal wheels, a connecting and placing mechanism 2, the connecting and placing mechanism 2 is arranged on the bottom plate 1, the connecting and placing mechanism 2 comprises a vertical plate 21, the number of the vertical plates 21 is two and they are respectively installed on the left and right sides of the top of the bottom plate 1, the tops of the two vertical plates 21 are fixedly connected by a horizontal plate, three placing plates 22 are arranged on the opposite side of the two vertical plates 21, the placing plates 22 at the bottom and the placing plates 22 at the top are respectively fixedly connected to the vertical plates 21, A slide groove 23 is provided on the front side of the vertical plate 21 and on one side close to the placement plate 22. Slide blocks 24 adapted to the slide groove 23 are fixedly connected to the left and right sides of the vertical plate 21 located in the middle position. The side of the slide block 24 close to the slide groove 23 passes through the slide groove 23 and extends into the interior thereof. A magnet 25 is fixedly connected to the back side of the slide block 24. An iron block 26 used in conjunction with the magnet 25 is fixedly connected to the back side of the inner wall of the slide groove 23. A back plate 27 is fixedly connected to the top of the bottom plate 1 and on the back side of the placement plate 22. A junction box is fixedly connected to the front side of the back plate 27.

[0024] Specifically, the placement plate 22 located in the middle position is pulled forward, and the placement plate 22 drives the magnet 25 to move forward, so that the magnet 25 and the iron block 26 are separated, and the slider 24 and the slide groove 23 are separated. Then, the spacing between the placement plate 22 in the middle position and the upper and lower placement plates 22 is adjusted as needed. When it is adjusted to a suitable position, the placement plate 22 in the middle position drives the slider 24 to be inserted backward into the corresponding slide groove 23, so that the magnet 25 and the iron block 26 are attracted to each other.

[0025] Through the cooperation of the vertical plate 21, the placement plate 22, the slide groove 23, the slider 24, the magnet 25 and the iron block 26, the position of the placement plate 22 can be easily adjusted during use, so that vacuum circuit breakers of different sizes can be easily placed, thereby improving applicability.

[0026] The limit clamping mechanism 3 is arranged on the placement plate 22, and the limit clamping mechanism 3 includes a fixing groove 31. The number of the fixing grooves 31 is three and they are respectively opened at the tops of the three placement plates 22. The grooves on the left and right sides of the inner wall of the fixing groove 31 are respectively connected with a forward threaded rod 32 and a reverse threaded rod 33 through bearings. The right end of the forward threaded rod 32 and the left end of the reverse threaded rod 33 are fixedly connected by a fixed shaft 34. The surface of the forward threaded rod 32 and the surface of the reverse threaded rod 33 are both threadedly connected with a thread block 35. The side of the thread block 35 close to the inner wall of the fixing groove 31 is in sliding contact with the inner wall of the fixing groove 31. The top of the thread block 35 is fixedly connected with the clamping plate 3 6. The bottom of the clamping plate 36 is in sliding contact with the top of the placing plate 22. A rotating block 37 is provided at the bottom of the placing plate 22. The top of the rotating block 37 is in rotational contact with the bottom of the placing plate 22. The top of the rotating block 37 is fixedly connected with a rotating shaft 38. The top of the rotating shaft 38 passes through the fixing groove 31 and extends into the inside thereof. The top of the output shaft of the rotating shaft 38 is fixedly connected with a driving gear 39. The surface of the fixed shaft 34 is fixedly connected with a driven gear 310 that meshes with the driving gear 39. The bottom of the placing plate 22 and the left and right sides of the rotating block 37 are fixedly connected with limit blocks 311. The side of the limit block 311 close to the rotating block 37 is in contact with the rotating block 37.

[0027] Through the mutual cooperation of the fixing groove 31, the forward threaded rod 32, the reverse threaded rod 33, the fixed shaft 34, the threaded block 35, the clamping plate 36, the rotating block 37, the rotating shaft 38, the driving gear 39, the driven gear 310 and the limit stop block 311, the vacuum circuit breaker can be clamped and fixed conveniently, thereby ensuring the stability of the vacuum circuit breaker placed on the placement plate 22.

[0028] When in use, place the vacuum circuit breaker on the placement plate 22, and then rotate the rotating block 37. The rotating block 37 drives the driving gear 39 and the driven gear 310 to rotate through the rotating shaft 38. The driven gear 310 drives the forward threaded rod 32 and the reverse threaded rod 33 to rotate, so that the two threaded blocks 35 on the same side move closer to each other, and the threaded block 35 drives the clamping plate 36 to move, so that the clamping plate 36 clamps and fixes the vacuum circuit breaker, and at the same time connects the vacuum circuit breaker and the junction box, and then the entire test tool is pushed into the aging test room.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test fixture for a vacuum circuit breaker, characterized in that: include: Bottom plate (1); A connecting and placing mechanism (2), the connecting and placing mechanism (2) being arranged on the bottom plate (1), the connecting and placing mechanism (2) comprising a vertical plate (21), the number of the vertical plates (21) being two and being respectively arranged on the left and right sides of the top of the bottom plate (1), and three placing plates (22) being arranged on opposite sides of the two vertical plates (21); A position limiting clamping mechanism (3), wherein the position limiting clamping mechanism (3) is arranged on a placement plate (22), and the position limiting clamping mechanism (3) comprises a fixing groove (31), wherein the number of the fixing grooves (31) is three and the fixing grooves (31) are respectively arranged on the tops of the three placement plates (22).

2. A vacuum circuit breaker test fixture according to claim 1, characterized in that: A slide groove (23) is provided on the front side of the vertical plate (21) and close to the placement plate (22), and sliding blocks (24) adapted to the slide groove (23) are installed on both the left and right sides of the vertical plate (21) located in the middle position, and the side of the sliding block (24) close to the slide groove (23) penetrates the slide groove (23) and extends into the interior thereof.

3. The test fixture for a vacuum circuit breaker according to claim 2, characterized in that: A magnet (25) is installed on the back of the slider (24), an iron block (26) used in conjunction with the magnet (25) is installed on the back of the inner wall of the slide groove (23), and a back plate (27) is installed on the top of the bottom plate (1) and on the back of the placement plate (22).

4. The test fixture for a vacuum circuit breaker according to claim 3, characterized in that: A forward-rotating threaded rod (32) and a reverse-rotating threaded rod (33) are movably connected in grooves on the left and right sides of the inner wall of the fixing groove (31) via bearings, respectively; the right end of the forward-rotating threaded rod (32) and the left end of the reverse-rotating threaded rod (33) are fixedly connected via a fixing shaft (34).

5. The test fixture for a vacuum circuit breaker according to claim 4, characterized in that: The surface of the forward-rotating threaded rod (32) and the surface of the reverse-rotating threaded rod (33) are both threadedly connected with a threaded block (35), and a clamping plate (36) is installed on the top of the threaded block (35).

6. A vacuum circuit breaker test fixture according to claim 5, characterized in that: A rotating block (37) is provided at the bottom of the placement plate (22), a rotating shaft (38) is installed at the top of the rotating block (37), the top end of the rotating shaft (38) passes through the fixing groove (31) and extends into the inside thereof, a driving gear (39) is installed at the top end of the output shaft of the rotating shaft (38), a driven gear (310) meshing with the driving gear (39) is installed on the surface of the fixing shaft (34), and limit stops (311) are installed at the bottom of the placement plate (22) and on both left and right sides of the rotating block (37).

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