Electric power opening operation shaft

Abstract

The utility model discloses an electric power opening operation shaft, which comprises a shaft rod and a plurality of transmission plates sleeved on the outer side of the shaft rod, a through hole is arranged in each transmission plate, the shaft rod is arranged in the through hole, a connecting ring is fixedly embedded on the inner wall of the through hole, the connecting ring is sleeved on the outer side of the shaft rod, two symmetrically arranged grooves are arranged on the inner wall of the connecting ring, and the inner wall of the connecting ring is connected with the through hole. Two grooves are formed in the shaft rod, rotating supporting mechanisms are arranged in the two grooves, clamping plates are arranged through the rotating supporting mechanisms, two sets of symmetrically-arranged clamping grooves are formed in the rod wall of the shaft rod, the ends of the clamping plates are inserted into the clamping grooves, pushing clamping mechanisms are arranged in the grooves, and the pushing clamping mechanisms are matched with the clamping plates. According to the utility model, the position of the transmission plate can be adjusted according to the position of an assembly needing to be opened in the switchgear, and the transmission plate can be rapidly separated or installed through the connecting ring and the shaft rod, so that the whole operation shaft is prevented from being replaced as much as possible, and the use effect of the opening operation shaft is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical operation technology, specifically to a power tripping operation shaft. Background Technology

[0002] The power tripping operating shaft is a key component in circuit breakers and other switchgear used to perform tripping operations. It is usually located inside the operating mechanism of the switchgear and is a transmission component that connects the external operating handle or electric operating device with the internal tripping mechanism.

[0003] A search revealed that patent document CN215265999U discloses a tripping operation shaft. In this tripping operation shaft, the first transmission plate, the second transmission plate, the third transmission plate, and the first shaft are integrally die-cast, which can effectively improve the accuracy of the entire device, improve the equipment accuracy of the entire device, and significantly reduce the misoperation of the entire device.

[0004] However, when the aforementioned tripping operation shaft is in use, since the transmission plate and shaft are fixed as a whole, if the transmission plate is damaged, the entire operation shaft needs to be disassembled, which reduces the service life and performance of the tripping operation shaft. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a power tripping operation shaft to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0007] This utility model provides a power tripping operation shaft, including a shaft and a plurality of transmission plates sleeved on the outside of the shaft. Each transmission plate has a through hole inside, the shaft is disposed in the through hole, and a connecting ring is fixedly embedded in the inner wall of the through hole. The connecting ring is sleeved on the outside of the shaft.

[0008] The inner wall of the connecting ring has two symmetrically arranged grooves, each groove is equipped with a rotating support mechanism, and a retaining plate is provided through the rotating support mechanism. The shaft wall has two sets of symmetrically arranged slots, and the end of the retaining plate is inserted into the slot.

[0009] The groove is provided with a push-locking mechanism, which is configured to cooperate with the card plate.

[0010] Preferably, the rotating support mechanism includes a crossbar, which is fixedly disposed in the groove and rotatably passes through the inside of the clamping plate. A torsion spring is sleeved on the wall of the crossbar, and the two ends of the torsion spring are fixedly connected to the clamping plate and the crossbar, respectively.

[0011] Preferably, the side wall of the card plate has a storage groove, and the torsion spring is disposed in the storage groove.

[0012] Preferably, the push-clamping mechanism includes a push screw, which is threaded through the side of the groove. One end of the push screw is rotatably fitted with a push block, which is in contact with the lower surface of the clamping plate. The other end of the push screw passes through a connecting ring and is fixedly fitted with a rotating block.

[0013] Preferably, the two adjacent pushing blocks are in contact with the inner wall of the groove on the side furthest from each other, and the two pushing blocks are rounded at the side closest to each other and abut against the card plate.

[0014] Preferably, the slots inside each set of card slots are spaced apart.

[0015] Preferably, the transmission plate and the connecting ring are bonded together.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] With its shaft, transmission plate, through hole, connecting ring, groove, clamping plate, rotating support mechanism, and push-clamping mechanism, the position of the transmission plate can be adjusted according to the position of the components that need to be tripped inside the switchgear, improving the versatility of the tripping operating shaft. At the same time, the transmission plate can be quickly separated or installed through the connecting ring and shaft, and individual transmission plates can be disassembled and replaced, minimizing the need to replace the entire operating shaft and improving the performance of the tripping operating shaft. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the connecting ring of this utility model;

[0020] Figure 3 This is a cross-sectional view of the connecting ring of this utility model;

[0021] Figure 4 This is an enlarged view of part A of the structure of this utility model.

[0022] In the diagram: 1. Shaft; 2. Transmission plate; 3. Connecting ring; 4. Clamping plate; 5. Clamping groove; 6. Crossbar; 7. Torsion spring; 8. Storage groove; 9. Push screw; 10. Push block; 11. Rotating block. Detailed Implementation

[0023] A type of power tripping operating shaft, such as Figure 1-4The device includes a shaft 1 and multiple transmission plates 2 sleeved on the outside of the shaft 1. Each transmission plate 2 has a through hole inside, the shaft 1 is disposed in the through hole, and a connecting ring 3 is fixedly embedded in the inner wall of the through hole. The connecting ring 3 is sleeved on the outside of the shaft 1, and the transmission plate 2 and the connecting ring 3 are bonded together.

[0024] The inner wall of the connecting ring 3 has two symmetrically arranged grooves, each containing a rotating support mechanism. A retaining plate 4 is provided through the rotating support mechanism. The shaft 1 has two sets of symmetrically arranged slots 5. The end of the retaining plate 4 is inserted into the slot 5. The slot openings inside each set of slots 5 are spaced apart. The rotating support mechanism includes a crossbar 6, which is fixedly installed in the groove and rotates through the inside of the retaining plate 4. A torsion spring 7 is sleeved on the wall of the crossbar 6. The two ends of the torsion spring 7 are fixedly connected to the retaining plate 4 and the crossbar 6, respectively. The side wall of the retaining plate 4 has a storage groove 8, and the torsion spring 7 is located in the storage groove 8.

[0025] When using the tripping operation shaft as a whole, firstly, the connecting ring 3 is placed inside the transmission plate 2 and the connecting ring 3 is sleeved on the shaft 1. Then, the position of the transmission plate 2 is determined according to the position of the corresponding tripping component inside the switchgear. Then, the clamping plate 4 is pushed so that the clamping plate 4 rotates around the crossbar 6 and twists the torsion spring 7. At this time, the clamping plate 4 is inserted into the corresponding slot 5, thereby fixing the position of the connecting ring 3 and thus determining the position of the transmission plate 2.

[0026] When the transmission plate 2 is worn, the clamping plate 4 can be pulled out of the clamping slot 5 under the torque recovery of the torsion spring 7. At this time, the connecting ring 3 can be pulled out from the shaft 1, so that the transmission plate 2 can be disassembled and replaced separately. This avoids replacing the entire tripping operation shaft as much as possible, avoids waste of resources, and improves the performance of the operation shaft.

[0027] In order to stably insert the card plate 4 into the card slot 5 to fix the position of the connecting ring 3 and the transmission plate 2, and as Figure 2-3 As shown, the groove is equipped with a push-locking mechanism, which is configured to cooperate with the locking plate 4. The push-locking mechanism includes a push screw 9, which is threaded through the side of the groove. One end of the push screw 9 is rotatably fitted with a push block 10. The two adjacent push blocks 10 are in contact with the inner wall of the groove on the side away from each other. The two push blocks 10 are rounded at the side of the two push blocks 10 that are close to each other and abut against the locking plate 4. The push block 10 is in contact with the lower surface of the locking plate 4. The other end of the push screw 9 passes through the connecting ring 3 and is fixedly fitted with a rotating block 11.

[0028] After the connecting ring 3 is fitted onto the outside of the shaft 1, the clamping plate 4 is located beside the groove 5. Then, the rotating block 11 is pushed, causing the rotating block 11 to drive the push screw 9 to rotate. Since the push block 10 and the push screw 9 are rotated together and are subject to the sliding limit of the inner wall of the groove, the push block 10 can only move laterally and push the clamping plate 4, causing the clamping plate 4 to rotate and insert into the groove 5. This completes the position fixation of the clamping plate 4 and the transmission plate 2, improving the ease of use of the operating shaft.

[0029] In summary: Before using the operating shaft, the connecting ring 3 is first placed inside the transmission plate 2 and then sleeved on the shaft 1. The position of the transmission plate 2 is then determined according to the position of the corresponding tripping component inside the switchgear. Then, the rotating block 11 is pushed, causing the rotating block 11 to drive the push screw 9 to rotate. Since the push block 10 and the push screw 9 rotate in coordination and are subject to the sliding limit of the inner wall of the groove, the push block 10 can only move laterally and push the card plate 4, causing the card plate 4 to rotate and insert into the card slot 5, thus completing the positioning of the card plate 4 and the transmission plate 2.

[0030] When the transmission plate 2 is worn, the clamping plate 4 can be pulled out of the clamping slot 5 under the torque recovery of the torsion spring 7. At this time, the connecting ring 3 can be pulled out from the shaft 1, so that the transmission plate 2 can be disassembled and replaced separately. This avoids replacing the entire tripping operation shaft as much as possible, avoids waste of resources, and improves the performance of the operation shaft.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A power tripping operation shaft, comprising a shaft (1) and a plurality of transmission plates (2) sleeved on the outside of the shaft (1), characterized in that: Each of the transmission plates (2) has a through hole inside, the shaft (1) is located in the through hole, and a connecting ring (3) is fixedly embedded in the inner wall of the through hole. The connecting ring (3) is sleeved on the outside of the shaft (1). The inner wall of the connecting ring (3) has two symmetrically arranged grooves, and each of the two grooves is provided with a rotating support mechanism and a card plate (4) is provided through the rotating support mechanism. The shaft (1) has two sets of symmetrically arranged slots (5) on its rod wall, and the end of the card plate (4) is inserted into the slot (5). The groove is provided with a push-locking mechanism, which is configured to cooperate with the card plate (4).

2. The power tripping operating shaft according to claim 1, characterized in that: The rotating support mechanism includes a crossbar (6), which is fixedly disposed in the groove. The crossbar (6) rotates through the inside of the clamping plate (4). A torsion spring (7) is sleeved on the wall of the crossbar (6), and the two ends of the torsion spring (7) are fixedly connected to the clamping plate (4) and the crossbar (6) respectively.

3. The power tripping operating shaft according to claim 2, characterized in that: The side wall of the card plate (4) is provided with a storage groove (8), and the torsion spring (7) is provided in the storage groove (8).

4. The power tripping operation shaft according to claim 1, characterized in that: The push-clamp mechanism includes a push screw (9), which is threaded through the side of the groove. One end of the push screw (9) is rotatably fitted with a push block (10), which is in contact with the lower surface of the clamping plate (4). The other end of the push screw (9) passes through the connecting ring (3) and is fixedly fitted with a rotating block (11).

5. The power tripping operating shaft according to claim 4, characterized in that: The two adjacent push blocks (10) are in contact with the inner wall of the groove on the side away from each other, and the two push blocks (10) are rounded at the side of the side close to each other and abut against the card plate (4).

6. The power tripping operating shaft according to claim 1, characterized in that: The slots inside each set of card slots (5) are spaced apart.

7. The power tripping operating shaft according to claim 1, characterized in that: The transmission plate (2) and the connecting ring (3) are bonded together.

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