A handcart type high voltage switch cabinet

Abstract

The application discloses a handcart type high-voltage switch cabinet, which comprises a cabinet body, a driving assembly and a baffle, the cabinet body is provided with a guide rod fixedly arranged thereon, a lifting shell is sleeved on the guide rod, a sliding plate is slidably arranged on the lifting shell, and the baffle is connected with the sliding plate; a rotating pin is rotatably arranged on the lifting shell, the rotating pin is provided with a spiral groove, a protruding block is fixedly arranged on the sliding plate, and the protruding block is slidably arranged in the spiral groove; the rotating pin is arranged, before the baffle slides upwards, the connecting shaft slides in the connecting hole, and the rotating pin is driven to rotate through the rotating pipe and the rotating ring; the sliding plate is driven to slide outward with the baffle through cooperation of the spiral groove and the protruding block, so that the baffle is separated from the shielding position, friction between the baffle and the cabinet body in the sliding process is avoided, then the lifting shell and the baffle are driven to move upwards through abutment between the connecting shaft and the top of the connecting hole, the static contact is exposed, the movable contact of the circuit breaker is facilitated to be inserted into the static contact, and operation portability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power switch cabinet, in particular to a handcart type high-voltage switch cabinet. BACKGROUND

[0002] The high-voltage switch cabinet is the core electrical equipment in the power system, which is connected to the high-voltage power supply, distributes electric energy and protects the electrical equipment, and is widely used in power plants, substations, industrial enterprises and high-rise buildings.

[0003] In the operation of the handcart type high-voltage switch cabinet, the circuit breaker handcart is pushed onto the guide rail of the switch cabinet handcart room, and then the cabinet door is closed. By inserting a crank into the crank hole on the cabinet door and rotating, the handcart slides. In the sliding process, the isolation baffle outside the static contact of the switch cabinet is slid open through the mechanical interlocking device, and the moving contact on the handcart is inserted with the static contact after opening to complete the connection of the main circuit.

[0004] In the prior art, the baffle outside the static contact of the switch cabinet is guided by the guide rod. A certain gap is provided between the guide hole on the baffle and the guide rod to ensure the sliding reliability of the baffle and avoid the baffle from being stuck when the surface of the guide rod is slightly rusted, the baffle is slightly deformed due to transportation and installation (such as edge warping), and the insulating baffle material is hardened and the friction coefficient is increased in low temperature environment. However, this setting method will cause the baffle to be difficult to completely cover when shielding the static contact, affecting the shielding effect. SUMMARY

[0005] The purpose of the present application is to provide a handcart type high-voltage switch cabinet to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A handcart type high-voltage switch cabinet, comprising a cabinet body, a driving assembly and a baffle, the cabinet body is fixedly provided with a guide rod, the guide rod is sleeved with a lifting shell, the lifting shell is slidably provided with a sliding plate, and the baffle is connected with the sliding plate.

[0008] A rotating pin is rotatably arranged on the lifting shell, a spiral groove is arranged on the rotating pin, a protrusion is fixedly arranged on the sliding plate, and the protrusion is slidably arranged in the spiral groove.

[0009] A connecting hole is arranged on the lifting shell, a connecting shaft is slidably arranged in the connecting hole, a rotating tube is rotatably arranged on the connecting shaft, a rotating ring is slidably arranged on the rotating tube, the rotating ring is rotatably connected with the rotating pin, and a torsional spring is arranged between the rotating ring and the rotating pin.

[0010] Further comprising a locking member for locking the lifting shell, preventing the baffle from sliding under external force and driving the driving assembly to move when the baffle is in the shielding state.

[0011] Preferably, a plurality of second springs are arranged between the sliding plate and the lifting shell, and two ends of each second spring are fixedly connected with the sliding plate and the lifting shell respectively.

[0012] Preferably, a third spring is arranged between the rotating tube and the rotating ring, and two ends of the third spring are fixedly connected with the rotating tube and the rotating ring respectively.

[0013] Preferably, the locking member comprises a rotating rod fixedly arranged on the lifting shell, a locking plate rotatably arranged on the rotating rod, a locking groove arranged on the guide rod, a top end of the locking plate in clamped connection with the locking groove, and a bottom of the locking plate in abutment with the guide rod.

[0014] Preferably, a reciprocating block is slidably arranged on the connecting shaft, a cross rod is fixedly arranged on the reciprocating block, a long groove is arranged on the locking plate, and the cross rod is slidably arranged in the long groove.

[0015] Preferably, a first spring is arranged between the reciprocating block and the connecting shaft, and two ends of the first spring are fixedly connected with the reciprocating block and the connecting shaft respectively.

[0016] Preferably, a driving rod is rotatably arranged on the driving assembly, and the driving rod is in rotational connection with the connecting shaft.

[0017] Preferably, a fixing member is fixedly arranged on the cabinet body, and the fixing member is in abutment with the lifting shell.

[0018] Preferably, the baffle is in sliding insertion with the sliding plate, a limiting angle is fixedly arranged on the baffle, a limiting groove is arranged on the sliding plate, and the limiting angle is in clamped connection with the limiting groove.

[0019] Preferably, a limiting screw is arranged on the sliding plate.

[0020] In the above technical solution, the handcart type high-voltage switch cabinet provided by the application has the following beneficial effects:

[0021] 1. By arranging the rotating pin, the connecting shaft slides in the connecting hole before the baffle slides upward, and the rotating pin is driven to rotate by the rotating tube and the rotating ring, the sliding plate is driven to slide outward by the cooperation of the spiral groove and the protrusion, and the sliding plate is separated from the shielding position, so as to avoid friction between the baffle and the cabinet body during sliding, and then the abutment between the connecting shaft and the top of the connecting hole drives the lifting shell and the baffle to move upward, so as to expose the static contact, facilitate the insertion of the moving contact of the circuit breaker, and improve the operation portability.

[0022] 2. By setting a torsion spring between the rotating ring and the rotating pin, if the rotating angle of the rotating ring is different, the sliding plates on both sides of the baffle will not slide synchronously during the sliding process, the torsion spring will compensate for the difference, avoid the sliding plates on both sides of the baffle from sliding out of sync, and ensure the stability of the sliding process of the sliding plates on both sides of the baffle with the baffle.

[0023] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not intended to limit the present disclosure.

[0024] This application file provides an overview of various implementations or examples of the technology described in this disclosure and is not intended to be a comprehensive or exhaustive disclosure of the technology disclosed. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0026] Figure 1 The cabinet structure schematic diagram provided by the embodiment of the present application;

[0027] Figure 2 The driving assembly, guide rod and baffle structure schematic diagram provided by the embodiment of the present application;

[0028] Figure 3 The A enlarged view in the Figure 2 provided by the embodiment of the present application;

[0029] Figure 4 The lifting shell structure schematic diagram provided by the embodiment of the present application;

[0030] Figure 5 The guide rod, baffle and lifting front view provided by the embodiment of the present application;

[0031] Figure 6 The B enlarged view in the Figure 5 provided by the embodiment of the present application;

[0032] Figure 7 The connecting shaft and lock plate structure schematic diagram provided by the embodiment of the present application;

[0033] Figure 8 The baffle and sliding plate connection structure schematic diagram provided by the embodiment of the present application.

[0034] Explanation of reference signs:

[0035] 1, cabinet; 11, fixed part; 2, drive assembly; 21, drive rod; 22, connecting shaft; 23, reciprocating block; 24, first spring; 25, cross rod; 3, guide rod; 31, locking groove; 4, baffle; 41, limiting angle; 5, lifting shell; 51, sliding plate; 52, rotating pin; 53, spiral groove; 54, second spring; 55, protrusion; 56, limiting groove; 57, limiting screw; 58, connecting hole; 6, rotating rod; 61, lock plate; 62, long groove; 7, rotating tube; 71, rotating ring; 72, torsional spring; 73, third spring. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0037] Please refer to 1-8, a handcart type high-voltage switch cabinet, including cabinet 1, drive assembly 2 and baffle 4, cabinet 1 is fixedly provided with guide rod 3, guide rod 3 is provided with lifting shell 5, lifting shell 5 is provided with sliding plate 51, baffle 4 is connected with sliding plate 51;Lifting shell 5 is rotatably provided with rotating pin 52, rotating pin 52 is provided with helical groove 53, sliding plate 51 is fixedly provided with lug 55, lug 55 is slidably arranged in helical groove 53;Lifting shell 5 is provided with connecting hole 58, connecting hole 58 is slidably provided with connecting shaft 22, connecting shaft 22 is rotatably provided with rotating tube 7, rotating tube 7 is slidably provided with rotating ring 71, rotating ring 71 is rotatably connected with rotating pin 52, and torsional spring 72 is arranged between rotating ring 71 and rotating pin 52;Further comprising locking member, for locking lifting shell 5, when baffle 4 is in shielding state, prevent baffle 4 from sliding under external force, and drive assembly 2 is driven to move, when baffle 4 is opened, connecting shaft 22 moves up, lifting shell 5 is fixed under the action of locking member, connecting shaft 22 slides in connecting hole 58, in the sliding process, rotating tube 7 and rotating ring 71 are driven to rotate, rotating ring 71 drives rotating pin 52 to rotate through torsional spring 72, in the process of rotating ring 71 rotating, torsional spring 72 is tightened, the force of torsional spring 72 acts on rotating pin 52 to make it rotate, and through the cooperation of helical groove 53 and lug 55, sliding plate 51 slides with baffle 4, in this process, baffle 4 slides outward and separates from the shielding position, then it rises again, and in this process, if the rotation of the two rotating rings 71 is out of sync and there is a certain error, the tightening of torsional spring 72 can compensate for the rotation angle, so that the two sliding plates 51 can slide synchronously, ensuring the stable sliding effect of baffle 4 and avoiding the phenomenon of sliding resistance.

[0038] Specifically, a plurality of second springs 54 are arranged between the sliding plate 51 and the lifting shell 5, the two ends of the second spring 54 are fixedly connected with the sliding plate 51 and the lifting shell 5 respectively, when the second spring 54 is in the compressed state, the baffle 4 is located at the shielding position, at this time, the baffle 4 is in contact with the cabinet 1 or the static contact, so as to improve the shielding effect of the static contact, after the second spring 54 is elongated to the normal state, the baffle 4 slides away from the cabinet 1 or the static contact with the sliding plate 51, avoiding friction between the sliding plate 51 and the cabinet 1 or the static contact when the sliding plate 51 rises.

[0039] Further, the locking member comprises a rotating rod 6 fixedly arranged on the lifting shell 5, the rotating rod 6 is rotatably arranged with a lock plate 61, the guide rod 3 is arranged with a locking groove 31, the top end of the lock plate 61 is clamped and matched with the locking groove 31, and the bottom of the lock plate 61 is abutted with the guide rod 3; when the connecting shaft 22 is located at the bottom of the connecting hole 58, the top end of the lock plate 61 is clamped with the locking groove 31, so as to avoid limiting the upward sliding of the baffle 4; when the connecting shaft 22 is abutted with the top of the connecting hole 58, the baffle 4 is separated from the shielding position, the lock plate 61 is separated from the clamping of the locking groove 31, the unlocking is completed, the baffle 4 can be lifted, and the baffle 4 is prevented from sliding due to the force other than the driving assembly 2 when the baffle 4 is located at the shielding position, through the clamping of the lock plate 61 and the locking groove 31.

[0040] Further, the locking member comprises a rotating rod 6 fixedly arranged on the lifting shell 5, the rotating rod 6 is rotatably arranged with a lock plate 61, the guide rod 3 is arranged with a locking groove 31, the top end of the lock plate 61 is clamped and matched with the locking groove 31, and the bottom of the lock plate 61 is abutted with the guide rod 3; when the connecting shaft 22 is located at the bottom of the connecting hole 58, the top end of the lock plate 61 is clamped with the locking groove 31, so as to avoid limiting the upward sliding of the baffle 4; when the connecting shaft 22 is abutted with the top of the connecting hole 58, the baffle 4 is separated from the shielding position, the lock plate 61 is separated from the clamping of the locking groove 31, the unlocking is completed, the baffle 4 can be lifted, and the baffle 4 is prevented from sliding due to the force other than the driving assembly 2 when the baffle 4 is located at the shielding position, through the clamping of the lock plate 61 and the locking groove 31.

[0041] Further, the connecting shaft 22 is slidably provided with a reciprocating block 23, the reciprocating block 23 is fixedly provided with a cross rod 25, the locking plate 61 is provided with a long slot 62, the cross rod 25 is slidably arranged in the long slot 62, the reciprocating block 23 and the connecting shaft 22 are provided with the first spring 24, the two ends of the first spring 24 are fixedly connected with the reciprocating block 23 and the connecting shaft 22 respectively, the cabinet 1 is fixedly provided with a fixing part 11, the fixing part 11 is in abutting cooperation with the lifting shell 5, when the connecting shaft 22 moves upwards, the reciprocating block 23 and the cross rod 25 are driven to move upwards, in the process of moving upwards of the cross rod 25, the first spring 24 is adapted to elongate and shorten, after the connecting shaft 22 moves to the top of the connecting hole 58, the cross rod 25 is located on the upper end point of the long slot 62, the locking plate 61 is completed to rotate and disengage from the locking slot 31, at this time, the first spring 24 is still in the stretched state, under the action of the first spring 24, the bottom of the locking plate 61 is in abutment with the guide rod 3, the stability of the lifting shell 5 and the baffle 4 in the process of moving upwards is improved, when the connecting shaft 22 drives the lifting shell 5 to move downwards, the connecting shaft 22 is still located at the top of the connecting hole 58, after the lifting shell 5 and the baffle 4 are completed to move downwards and reset, the lifting shell 5 is in abutment with the fixing part 11, at this time, the connecting shaft 22 is slidably moved downwards in the connecting hole 58, in the process of moving downwards, the first spring 24 is first elongated and then compressed and reset, and in the process, the third spring 73 is first compressed and then elongated, at the same time, the torsional spring 72 drives the rotating pin 52 to rotate, the sliding of the sliding plate 51 is completed, and the baffle 4 is slid to the shielding position.

[0042] In the further provided embodiment of the application, the driving assembly 2 is rotatably provided with a driving rod 21, the driving rod 21 is rotatably connected with the connecting shaft 22, when the handcart is slid in the cabinet 1, the driving assembly 2 drives the connecting shaft 22 to move upwards, the upward movement includes the sliding upward movement of the connecting shaft 22 in the connecting hole 58 and the upward movement of the connecting shaft 22 with the lifting shell 5, in the embodiment, the driving assembly 2 and the cooperation principle of the handcart and the driving assembly 2 are prior art, and will not be described in detail, the driving rod 21 is rotatably connected with the connecting shaft 22, when the driving assembly 2 drives the driving rod 21 to drive the connecting shaft 22 to move upwards and slide, the driving rod 21 will rotate by a certain angle, the driving rod 21 and the connecting shaft 22 are rotatably connected, so that the driving rod 21 and the connecting shaft 22 can be adapted.

[0043] In the embodiment provided by the application, the baffle 4 is slidingly connected with the sliding plate 51, the limiting angle 41 is fixedly arranged on the baffle 4, the limiting groove 56 is arranged on the sliding plate 51, the limiting angle 41 is clamped with the limiting groove 56, the limiting screw 57 is arranged on the sliding plate 51, the baffle 4 is taken out from the sliding plate 51 by rotating the limiting screw 57 when the baffle 4 is separately disassembled or assembled, the baffle 4 is reassembled by rotating the limiting screw 57 after the assembly is completed, and the baffle 4 is connected and fixed with the sliding plate 51 through the clamping of the limiting angle 41 and the limiting groove 56 and the cooperation of the limiting screw 57.

[0044] The above statement is only for the baffle 4 located above, and the same structure as described above can be arranged at the position of the baffle 4 located below during the implementation of the application, so that the baffle 4 located below realizes the same technical effect as described above during the sliding process, and the difference is that the baffle 4 located below is slid downward after being slid away from the shielding position, the static contact is arranged on the cabinet 1 and is shielded by the baffle 4, the baffle is opened when the circuit breaker is slid with the trolley, and the dynamic contact on the circuit breaker is connected with the static contact on the cabinet 1, and the sliding direction of the baffle 4 mentioned in the application is indicated in the attached Figure 2

[0045] ​Working principle: when installing the handcart type circuit breaker, push the handcart into the cabinet 1, close the cabinet door, insert the crank into the crank hole on the cabinet door, make the handcart slide with the circuit breaker, when sliding, drive the driving assembly 2 by the handcart, make the driving rod 21 push the connecting shaft 22 to move upwards, at this time, the connecting shaft 22 slides in the connecting hole 58, the lifting shell 5 is stationary, in this process, the connecting shaft 22 moves upwards with the cross rod 25 through the reciprocating block 23, under the cooperation of the cross rod 25 and the long slot 62, make the lock plate 61 rotate, the top of the lock plate 61 is separated from the locking groove 31, and when the connecting shaft 22 slides and abuts against the top of the connecting hole 58, the cross rod 25 moves to the top end of the long slot 62, the first spring 24 is lengthened, the bottom of the lock plate 61 abuts against the guide rod 3, at the same time, the upward movement of the connecting shaft 22 drives the rotating tube 7 and the rotating ring 71 to rotate, and drives the rotating pin 52 through the torsional spring 72, makes the sliding plate 51 slide outward with the baffle 4, the second spring 54 is lengthened from the compressed state to the normal state, after the baffle 4 slides outward, it is separated from the shielding position, then, the driving assembly 2 continues to drive the connecting shaft 22 to move upwards through the driving rod 21, at this time, the connecting shaft 22 abuts against the top of the connecting hole 58, drives the lifting shell 5 and the baffle 4 to move upwards, exposes the static contact, makes the moving contact of the circuit breaker and the static contact are inserted; after the moving contact and the static contact are inserted, the connecting shaft 22 still abuts against the top of the connecting hole 58, after the circuit breaker is taken out, the driving assembly 2 drives the connecting shaft 22 to move downwards through the driving rod 21, in the process of moving downwards, the connecting shaft 22 still abuts against the top of the connecting hole 58, after the downward movement is completed, the lifting shell 5 abuts against the fixing piece 11, the driving rod 21 continues to drive the connecting shaft 22 to move downwards, the lifting shell 5 is stationary, the baffle 4 can slide inward to reset to the shielding position through the downward movement of the connecting shaft 22, at the same time, the lock plate 61 rotates, the top of the lock plate 61 is clamped with the locking groove 31.

[0046] The foregoing merely describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A handcart-type high-voltage switchgear, comprising a cabinet (1), a drive assembly (2), and a baffle (4), characterized in that, A guide rod (3) is vertically fixed on the cabinet (1). A lifting shell (5) is slidably sleeved on the guide rod (3). A sliding plate (51) is slidably installed on the lifting shell (5). A baffle (4) is connected to the sliding plate (51). The baffle (4) blocks the stationary contact. A rotating pin (52) is rotatably provided on the lifting shell (5), and a spiral groove (53) is provided on the rotating pin (52). A sliding plate (51) is slidably sleeved on the rotating pin (52), and a protrusion (55) is fixedly provided on the sliding plate (51). The protrusion (55) is slidably disposed in the spiral groove (53). The lifting shell (5) is provided with a connecting hole (58), which is elongated. A connecting shaft (22) is slidably provided on the connecting hole (58). A rotating tube (7) is rotatably provided on the connecting shaft (22). A rotating ring (71) is slidably provided on the rotating tube (7). The rotating ring (71) is rotatably connected to the rotating pin (52), and a torsion spring (72) is provided between the rotating ring (71) and the rotating pin (52). It also includes a locking component, which is used to lock the lifting shell (5) to prevent the baffle (4) from sliding under external force when the baffle (4) is in the blocked state, and to drive the drive assembly (2) to move. A drive rod (21) is rotatably mounted on the drive assembly (2), and the drive rod (21) is rotatably connected to the connecting shaft (22); When the baffle (4) is in the blocking position, the baffle (4) is in contact with the cabinet (1) or with the stationary contact, and the locking part locks the lifting shell (5). When the handcart slides inside the cabinet (1), the drive assembly (2) will push the connecting shaft (22) upward; The connecting shaft (22) moves upward, and the lifting shell (5) remains stationary under the action of the locking device. The connecting shaft (22) slides in the connecting hole (58). During the sliding process, it drives the rotating tube (7) and the rotating ring (71) to rotate, so that the rotating ring (71) drives the rotating pin (52) to rotate through the torsion spring (72). During the rotation of the rotating ring (71), the torsion spring (72) is tightened. The force of the torsion spring (72) acts on the rotating pin (52) to make it rotate. And through the cooperation of the spiral groove (53) and the protrusion (55), the sliding plate (51) slides with the baffle (4). During this process, the baffle (4) slides outward and disengages from the blocking position. After the connecting shaft (22) moves up to abut against the top of the connecting hole (58), the locking member releases the locking of the lifting shell (5) and causes the connecting shaft (22) to move up with the lifting shell (5).

2. The handcart-type high-voltage switchgear according to claim 1, characterized in that, A plurality of second springs (54) are provided between the sliding plate (51) and the lifting shell (5), and the two ends of the second springs (54) are fixedly connected to the sliding plate (51) and the lifting shell (5) respectively.

3. A handcart-type high-voltage switchgear according to claim 1, characterized in that, A third spring (73) is provided between the rotating tube (7) and the rotating ring (71), and the two ends of the third spring (73) are fixedly connected to the rotating tube (7) and the rotating ring (71) respectively.

4. A handcart-type high-voltage switchgear according to claim 1, characterized in that, The locking component includes a rotating rod (6) fixedly mounted on the lifting shell (5), a locking plate (61) rotatably mounted on the rotating rod (6), a locking groove (31) mounted on the guide rod (3), the top of the locking plate (61) engaging with the locking groove (31), and the bottom of the locking plate (61) abutting against the guide rod (3).

5. A handcart-type high-voltage switchgear according to claim 4, characterized in that, A reciprocating block (23) is slidably arranged on the connecting shaft (22), a crossbar (25) is fixedly arranged on the reciprocating block (23), a long groove (62) is provided on the locking plate (61), and the crossbar (25) is slidably arranged in the long groove (62).

6. A handcart-type high-voltage switchgear according to claim 5, characterized in that, A first spring (24) is provided between the reciprocating block (23) and the connecting shaft (22), and the two ends of the first spring (24) are fixedly connected to the reciprocating block (23) and the connecting shaft (22) respectively.

7. A handcart-type high-voltage switchgear according to claim 1, characterized in that, A fixing component (11) is fixedly installed on the cabinet (1), and the fixing component (11) abuts against the lifting shell (5).

8. A handcart-type high-voltage switchgear according to claim 1, characterized in that, The baffle (4) is slidably inserted into the sliding plate (51). A limiting angle (41) is fixedly provided on the baffle (4), and a limiting groove (56) is provided on the sliding plate (51). The limiting angle (41) and the limiting groove (56) are engaged.

9. A handcart-type high-voltage switchgear according to claim 1, characterized in that, Limit screws (57) are provided on the sliding plate (51).

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