Low-voltage draw-out type switch cabinet

Abstract

The invention relates to the field of switch cabinets, and particularly discloses a low-voltage draw-out type switch cabinet, which comprises a cabinet body, a drawer for installing electrical components is arranged on the cabinet body, a connecting assembly for circuit connection is arranged between the cabinet body and the drawer, a sliding assembly is arranged on the connecting assembly, and the sliding assembly is arranged on the cabinet body. An extrusion assembly is arranged between the connecting assembly and the sliding assembly, and a hammering assembly used for hammering the connecting assembly is arranged on the sliding assembly. Normal insertion and extraction of the connecting assembly are achieved in the normal state, the hammering effect on the connecting assembly is achieved in the abnormal state, the connecting assembly is made to return to the normal state, meanwhile, automatic closed loop of the device can be achieved after hammering, continuous hammering of the connecting assembly can be achieved when a drawer is pushed and pulled till the connecting assembly returns to the normal state, the reliability of the system is improved, and the safety of the system is improved. Especially in an emergency state, emergency maintenance is not needed, power supply can be quickly recovered, the emergency response speed is increased, the adaptive capacity of the device is improved, and the functional stability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of switchgear technology, and more particularly to a low-voltage withdrawable switchgear. Background Technology

[0002] Switchgear is a key set of equipment in a power system used to receive and distribute electrical energy, and to control, protect, monitor and isolate circuits. According to the voltage level, it can be divided into low-voltage switchgear, medium-voltage switchgear and high-voltage switchgear. Among them, low-voltage withdrawable switchgear has main functional units such as circuit breakers and contactors installed in withdrawable drawers, which can move between connection, test and disconnection positions.

[0003] Existing patent CN220652777U discloses a pull-out low-voltage switch cabinet, including a cabinet body. The bottom of the cabinet body is provided with a fixing component for fixing the cabinet body. A drawer is slidably connected to the cabinet body through a sliding component. The drawer is equipped with a positioning component in cooperation with the cabinet body. A dustproof and heat dissipation component is provided on the top of the cabinet body. In this utility model, through the cooperation between the mounting groove, positioning plate, positioning block, spring, rotating shaft and positioning hole, when the positioning block passes through the positioning hole during the process of pulling the drawer out, the spring pushes the positioning plate to rotate, so that the positioning block is locked into the positioning hole, which avoids pulling out too much of the drawer at once. At the same time, the positioning plate extends to the outside of the mounting groove, which facilitates operation when releasing the positioning.

[0004] The above structure enables the switchgear to be withdrawable. However, during long-term use, the repeated pushing and pulling of the drawer causes the moving and stationary contacts to be constantly plugged and unplugged, which can easily lead to slight misalignment or tilting of the stationary contact, making it difficult to connect with the moving contact. In the connection state, the moving and stationary contacts must be aligned to form a circuit connection. When the moving and stationary contacts cannot be aligned, the operator cannot push the drawer back in, causing mechanical jamming and preventing the circuit connection from being achieved. This reduces the reliability of the system. Especially in emergency situations, when the main circuit cannot be connected, on-site emergency repairs are required, which cannot quickly restore power supply and delays emergency response. This makes it difficult for the switchgear to effectively adapt to circuit connections in emergency situations, reducing the adaptability of the device and the functional stability of the device.

[0005] Therefore, how to provide a low-voltage withdrawable switchgear is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] One object of the present invention is to provide a low-voltage withdrawable switchgear. The low-voltage withdrawable switchgear of the present invention includes a cabinet, a drawer for installing electrical components on the cabinet, a connecting component for electrical connection between the cabinet and the drawer, a sliding component on the connecting component, a pressing component between the connecting component and the sliding component, a hammering component on the sliding component for striking the connecting component, a power-accumulating component on the hammering component, a lifting component on the power-accumulating component, a transmission component between the sliding component and the pressing component, a pulling component on the transmission component, and a fastening component between the pulling component and the lifting component. When the connecting component is functioning normally, pushing the drawer forces the connecting component to be inserted and removed normally. When the connecting component is abnormally jammed, pushing the drawer causes the pressing component to actuate, forcing the power-accumulating component to accumulate and release power, causing the hammering component to strike the connecting component, forcing the connecting component to return to normal.

[0007] Preferably, the connecting assembly includes a moving contact disposed on the drawer, a stationary contact adapted to the moving contact disposed on the inner wall of the cabinet, and a mounting plate disposed on the stationary contact, the mounting plate being mounted on the cabinet by screws and nuts.

[0008] Preferably, the sliding assembly includes an insulating sleeve slidably disposed on the outer ring of the stationary contact, the stationary contact passing through the insulating sleeve, a mounting sleeve being disposed on the outer ring of the insulating sleeve, and a mounting bracket being disposed on the mounting sleeve.

[0009] Preferably, the extrusion assembly includes a connecting block disposed on the moving contact, an extrusion rod passing through the connecting block is disposed on the mounting bracket, and an extrusion spring sleeved on the outer ring of the extrusion rod is disposed between the connecting block and the mounting bracket.

[0010] Preferably, the hammering assembly includes a support block disposed on the mounting frame, a hammering rod hinged to the support block, and a hammering roller adapted to the stationary contact being bearing-connected to the hammering rod.

[0011] Preferably, the energy storage component includes an energy storage rod disposed on the mounting frame, the energy storage rod passing through the mounting frame, an energy storage block disposed on the energy storage rod, and an energy storage spring sleeved on the outer ring of the energy storage rod between the energy storage block and the mounting frame.

[0012] Preferably, the lifting assembly includes a lifting rod hinged to the mounting bracket, an end of the lifting rod being hinged to a lifting block connected to the power storage rod, and the other end of the lifting rod being provided with a bent rod.

[0013] Preferably, the transmission assembly includes a support rod disposed on the connecting block, a first transmission rack disposed on the support rod, a second transmission rack slidably disposed on the mounting bracket, and a transmission gear meshing with both the first and second transmission racks connected to a bearing on the mounting bracket.

[0014] Preferably, the pulling assembly includes a pulling rod hinged to the transmission spur rack, a pulling block is provided on the pulling rod, a guide rod is provided on the pulling block, and an inclined groove and an arc-shaped groove adapted to the guide rod are provided on the mounting frame, the inclined groove and the arc-shaped groove are connected; wherein, a support assembly is provided between the pulling block and the mounting frame, the support assembly includes a support outer rod hinged to the mounting frame, a baffle is hinged to the pulling block, a support inner rod is provided on the baffle and inserted into the support outer rod, and a support spring sleeved on the outer ring of the support inner rod is provided between the baffle and the support outer rod.

[0015] Preferably, the fastening assembly includes a fastening block disposed on the pulling block, and a hook body adapted to the fastening block is disposed on the bent rod, and both the fastening block and the hook body have arc surfaces.

[0016] The beneficial effects of this invention are as follows: When the drawer is pushed into the connected state, this invention moves the drawer to its deepest position within the cabinet. When the connecting components are functioning normally, the drawer drives the connecting components to achieve electrical connection. At this time, the sliding component, pressing component, and hammering component do not operate. When the connecting components malfunction, they create an obstruction, making it difficult to push the drawer. If the drawer moves but the connecting components cannot, the sliding component will also be stuck due to the action of the connecting components. When the drawer continues to be pushed in, it drives the pressing component to move. The movement of the pressing component drives the transmission component, which in turn drives the pulling component. Through the action of the engaging components... The action forces the locking component to move, which in turn drives the lifting component to move. The lifting component then drives the accumulating component to store force. Simultaneously, the accumulating component drives the hammering component to move away from the connecting component. When the pulling component reaches a certain position, it gradually rises, forcing the locking component to separate. This sudden, instantaneous separation causes the lifting component to lose its lifting function. Under the stored force of the accumulating component, the hammering component is forced to release instantaneously, striking the connecting component and forcing it to return to its normal state. When the connecting component returns to normal, the sliding component will not jam under the action of the squeezing component. The sliding component moves forward, forcing the transmission component to return to its original position. The transmission component then drives the pulling component to return to its original position. Under the action of the accumulating component, the hammering component rebounds after being struck, causing the accumulating component to move in the opposite direction, which in turn drives the lifting component to move in the opposite direction. This causes the lifting component to engage the locking component again, thus restoring the device to its original state and achieving an automatic closed-loop effect. If the drawer cannot be pushed again, it is pulled back and then pushed forward again until the connecting component is connected, ensuring smooth circuit connection. In summary, the low-voltage withdrawable switchgear of this application can achieve the connection of the components under normal conditions. Normal insertion and removal of components; in case of abnormality, it can achieve a hammering effect on the connecting components, restoring them to a normal state. After hammering, the device can automatically close the loop, allowing continuous hammering of the connecting components when pushing or pulling the drawer until it returns to normal, improving system reliability. Especially in emergency situations, it can quickly restore power supply without the need for emergency repairs, improving emergency response speed, enhancing the device's adaptability, and improving functional stability. When the drawer encounters resistance when pushed or pulled, it can automatically trigger a multi-directional correction action on the stationary contact, increasing the success rate of first-time insertion and reducing maintenance needs caused by poor contact alignment. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a diagram showing the connection relationship between the drawer and the connecting component of the present invention; Figure 3 For the present invention Figure 2 Partial structural entity diagram; Figure 4 For the present invention Figure 3 Partial structural entity diagram; Figure 5 This is a structural diagram of the mounting bracket of the present invention; Figure 6 For the present invention Figure 4 Partial structural entity diagram; Figure 7 For the present invention Figure 6 The front view; Figure 8 This is a diagram showing the connection relationship between the hammering assembly and the power storage assembly of the present invention; Figure 9 This is a diagram showing the connection relationship between the pulling component and the supporting component of the present invention.

[0018] In the diagram: 1. Cabinet; 2. Drawer; 3. Connecting assembly; 301. Moving contact; 302. Stationary contact; 303. Mounting plate; 4. Sliding assembly; 401. Insulating sleeve; 402. Mounting sleeve; 403. Mounting bracket; 5. Compression assembly; 501. Connecting block; 502. Compression rod; 503. Compression spring; 6. Hammering assembly; 601. Support block; 602. Hammering rod; 603. Hammering roller; 7. Power storage assembly; 701. Power storage rod; 702. Power storage block; 703. Power storage spring; 8. Lifting assembly; 801. Lifting rod 802. Lifting block; 803. Bent rod; 9. Transmission assembly; 901. Support rod; 902. Transmission spur rack one; 903. Transmission spur rack two; 904. Transmission gear; 10. Pulling assembly; 1001. Pulling rod; 1002. Pulling block; 1003. Guide rod; 1004. Inclined groove; 1005. Arc groove; 11. Fastening assembly; 1101. Fastening block; 1102. Hook; 12. Support assembly; 1201. Support outer rod; 1202. Baffle; 1203. Support inner rod; 1204. Support spring. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention. Example 1

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a low-voltage withdrawable switchgear of the present invention includes a cabinet 1, a drawer 2 for installing electrical components on the cabinet 1, a connecting component 3 for circuit connection between the cabinet 1 and the drawer 2, a sliding component 4 on the connecting component 3, a pressing component 5 between the connecting component 3 and the sliding component 4, a hammering component 6 on the sliding component 4 for hammering the connecting component 3, a power storage component 7 on the hammering component 6, a lifting component 8 on the power storage component 7, a transmission component 9 between the sliding component 4 and the pressing component 5, a pulling component 10 on the transmission component 9, and a fastening component 11 between the pulling component 10 and the lifting component 8. When the connecting component 3 is normal, the drawer 2 is pushed, forcing the connecting component 3 to be inserted and removed normally. When the connecting component 3 is abnormally stuck, the drawer 2 is pushed, causing the pressing component 5 to actuate, forcing the power storage component 7 to store and release power, causing the hammering component 6 to hammer the connecting component 3, forcing the connecting component 3 to return to normal.

[0021] Working principle: When drawer 2 is pushed into the connected state, it moves to its deepest position within cabinet 1. When connecting component 3 is functioning normally, drawer 2 drives connecting component 3 to achieve circuit connection. At this time, sliding component 4, pressing component 5, and hammering component 6 do not operate. When connecting component 3 malfunctions, it creates an obstruction, making it difficult to push drawer 2. When drawer 2 moves but connecting component 3 cannot move, sliding component 4 will also be stuck due to the action of connecting component 3. When drawer 2 continues to be pushed in, it drives pressing component 5 to move. The movement of pressing component 5 drives transmission component 9, causing transmission component 9 to move. The pull component 10 moves, and through the action of the fastening component 11, it forces the lifting component 8 to move. The lifting component 8 then drives the power storage component 7 to store power. Simultaneously, the power storage component 7 drives the hammering component 6 to move away from the connecting component 3. When the pull component 10 moves to a certain position, it gradually rises, causing the fastening component 11 to separate suddenly. This causes the lifting component 8 to lose its lifting action. Under the power storage of the power storage component 7, the hammering component 6 is forced to release instantaneously, striking the connecting component 3 and forcing it to stop moving. When component 3 returns to normal, the sliding component 4 will not be stuck. Under the action of the squeezing component 5, the sliding component 4 moves forward, forcing the transmission component 9 to return to its original position. The transmission component 9 drives the pulling component 10 to return to its original position. Under the action of the power storage component 7, after the hammering component 6 strikes, a rebound effect will occur. The reverse movement of the power storage component 7 drives the lifting component 8 to move in the opposite direction, causing the lifting component 8 to drive the fastening component 11 to fasten again, thereby restoring the device to its original state and realizing the automatic closed-loop effect of the device's movement. If the drawer 2 cannot be pushed again, the drawer 2 is pulled back, and the process continues. Push drawer 2 until connecting component 3 is connected to ensure smooth circuit connection. In summary, the low-voltage withdrawable switchgear of this application can realize normal insertion and removal of connecting component 3 under normal conditions, and can realize the hammering effect on connecting component 3 under abnormal conditions, so that connecting component 3 returns to normal state. At the same time, after hammering, the device can realize automatic closed loop, so that when pushing and pulling drawer 2, the connecting component 3 can be continuously hammered until it returns to normal, improving the reliability of the system. Especially in emergency situations, there is no need for emergency maintenance, and power supply can be quickly restored, improving emergency response speed, improving the adaptability of the device, and improving the functional stability of the device. Example 2

[0022] like Figure 2 and Figure 3As shown, a low-voltage withdrawable switch cabinet of the present invention includes a connecting component 3 comprising a moving contact 301 disposed on a drawer 2, a stationary contact 302 adapted to the moving contact 301 disposed on the inner wall of the cabinet body 1, and a mounting plate 303 disposed on the stationary contact 302, the mounting plate 303 being mounted on the cabinet body 1 by screws and nuts.

[0023] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a low-voltage withdrawable switchgear of the present invention, the sliding assembly 4 includes an insulating sleeve 401 slidably disposed on the outer ring of the stationary contact 302, the stationary contact 302 passing through the insulating sleeve 401, the outer ring of the insulating sleeve 401 being provided with a mounting sleeve 402, and the mounting sleeve 402 being provided with a mounting bracket 403.

[0024] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in a low-voltage withdrawable switchgear of the present invention, the compression assembly 5 includes a connecting block 501 disposed on the moving contact 301, a compression rod 502 disposed on the mounting frame 403 and passing through the connecting block 501, and a compression spring 503 sleeved on the outer ring of the compression rod 502 disposed between the connecting block 501 and the mounting frame 403.

[0025] like Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, a low-voltage withdrawable switchgear of the present invention includes a hammering assembly 6 comprising a support block 601 mounted on a mounting bracket 403, a hammering rod 602 hinged to the support block 601, and a hammering roller 603 adapted to the stationary contact 302 being connected to the hammering rod 602 by a bearing.

[0026] like Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, a low-voltage withdrawable switchgear of the present invention includes a power storage assembly 7 comprising a power storage rod 701 disposed on a mounting frame 403, the power storage rod 701 passing through the mounting frame 403, a power storage block 702 disposed on the power storage rod 701, and a power storage spring 703 sleeved on the outer ring of the power storage rod 701 disposed between the power storage block 702 and the mounting frame 403.

[0027] like Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, a low-voltage withdrawable switchgear of the present invention includes a lifting assembly 8 comprising a lifting rod 801 hinged to a mounting bracket 403, a lifting block 802 hinged to an end of the lifting rod 801 and connected to a power storage rod 701, and a bent rod 803 provided at the other end of the lifting rod 801.

[0028] like Figure 4 , Figure 6 and Figure 7 As shown, a low-voltage withdrawable switchgear of the present invention includes a transmission assembly 9 comprising a support rod 901 disposed on a connecting block 501, a first transmission rack 902 disposed on the support rod 901, a second transmission rack 903 slidably disposed on a mounting bracket 403, and a transmission gear 904 connected to the mounting bracket 403 by a bearing, which meshes with both the first transmission rack 902 and the second transmission rack 903.

[0029] like Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, a low-voltage withdrawable switchgear of the present invention includes a pull assembly 10 comprising a pull rod 1001 hinged to a transmission rack 903, a pull block 1002 disposed on the pull rod 1001, a guide rod 1003 disposed on the pull block 1002, and an inclined groove 1004 and an arc-shaped groove 1005 adapted to the guide rod 1003 on the mounting bracket 403, the inclined groove 1004 and the arc-shaped groove 1005 communicating with each other; wherein, the pull... A support assembly 12 is provided between the moving block 1002 and the mounting frame 403. The support assembly 12 includes an outer support rod 1201 hinged to the mounting frame 403, a baffle 1202 hinged to the pulling block 1002, an inner support rod 1203 inserted into the outer support rod 1201 on the baffle 1202, and a support spring 1204 sleeved on the outer ring of the inner support rod 1203 between the baffle 1202 and the outer support rod 1201.

[0030] like Figure 7 , Figure 8 and Figure 9 As shown, a low-voltage withdrawable switch cabinet of the present invention includes a fastening assembly 11 comprising a fastening block 1101 disposed on a pulling block 1002, and a hook 1102 disposed on a bent rod 803 adapted to the fastening block 1101. Both the fastening block 1101 and the hook 1102 are provided with arc surfaces.

[0031] Working principle: When drawer 2 is pushed into the connected state, drawer 2 is pushed to the deepest position in cabinet 1. When the stationary contact 302 and the moving contact 301 are normal, drawer 2 drives the moving contact 301 to move forward. The insulating sleeve 401 moves along the stationary contact 302, so that the stationary contact 302 passes through the insulating sleeve 401 and inserts into the moving contact 301, realizing the normal connection of the circuit. At this time, the sliding component 4, the pressing component 5 and the hammering component 6 do not operate. Since the moving contact 301 is mounted on the drawer 2 and the stationary contact 302 is mounted on the cabinet 1, the stationary contact 302 is prone to tilting or other abnormalities. When the stationary contact 302 malfunctions, the moving contact 301 cannot establish a circuit connection with it; that is, the stationary contact 302 will obstruct the forward movement of the moving contact 301. This manifests as the drawer 2 being difficult to push forward. The movement of the drawer 2 drives the moving contact 301 forward, which in turn drives the sliding assembly 4 and the pressing assembly 5 forward. Because the sliding assembly 4 is located at the front end, the insulating sleeve 401 and the mounting sleeve 40... 2. The mounting bracket 403 will be obstructed, meaning that the mounting bracket 403 and the stationary contact 302 will not move. When the drawer 2 continues to be pushed in, the moving contact 301 drives the connecting block 501 to move forward. The mounting bracket 403 will not move as it contacts the pressing rod 502. The pressing spring 503 will gradually compress, and the forward movement of the connecting block 501 will drive the support rod 901 to move forward. The movement of the support rod 901 will drive the transmission rack 902 to move. Since the mounting bracket 403 is stationary, the transmission rack 902 will drive the transmission gear 904 to rotate. The rotation of the transmission gear 904 will cause the transmission rack 902 to rotate. The drive rack 2 (903) moves in the opposite direction, causing it to pull rod 1001 back. Under the action of support spring 1204, outer support rod 1201, and inner support rod 1203, pull rod 1001 pulls pull block 1002 back. Pull block 1002 drives guide rod 1003 to move along inclined groove 1004, stretching support spring 1204. Simultaneously, pull block 1002 drives buckling block 1101 back, which in turn drives hook body 1102 back, which in turn drives bent rod. When 803 moves, the bent rod 803 drives the lifting rod 801 to move, causing one end of the lifting rod 801 to press down and the other end to lift up. This forces the lifting rod 801 to drive the lifting block 802 to lift up. The lifting block 802 drives the accumulator rod 701 to move, which in turn drives the accumulator block 702 to move. At this time, the accumulator spring 703 stores energy, and the accumulator block 702 pulls the hammer rod 602, forcing the hammer rod 602 to rotate around the hinge point. This causes the hammer rod 602 to drive the hammer roller 603 away from the stationary contact 302, at which point the hammer roller 603 forms a power storage effect. As the guide rod 1003 tilts within the inclined groove 1004, the pulling rod 1001 causes the pulling block 1002 to gradually rise in height. This causes the pulling block 1002 to continuously move the locking block 1101 away from the hook body 1102. Until the guide rod 1003 reaches a certain height, the locking block 1101 suddenly disengages from the hook body 1102, causing the hook body 1102 to be suddenly released. This releases the lifting rod 801 and the bent rod 803. At this point, the energy storage spring 703 has already... The stored energy is released by the energy storage spring 703, causing the energy storage spring 703 to drive the energy storage block 702 to move rapidly. The energy storage block 702 then drives the hammer rod 602 to move, forcing the hammer rod 602 to drive the hammer roller 603 to quickly hammer the stationary contact 302. Multiple hammer rollers 603 hammer the stationary contact 302 in all directions, forcing the stationary contact 302 to achieve centering with the moving contact 301, so that the stationary contact 302 can be inserted into the moving contact 301 and return to normal. When the stationary contact 302 returns to normal, the operator can push the drawer 2. The drawer 2 causes the moving contact 301 to move towards the stationary contact 302, thus establishing a circuit connection. At this time, the insulating sleeve 401, mounting sleeve 402, and mounting bracket 403 will not be stuck. Under the action of the compression spring 503, the compression rod 502 moves forward, causing the insulating sleeve 401, mounting sleeve 402, and mounting bracket 403 to move forward. When the moving contact 301 stops, the transmission rack 902 stops moving, and the mounting bracket 403 drives the transmission gear 904 to move forward. Under the action of the transmission rack 902, the transmission rack 903 is forced to move forward, thereby causing the pull rod 1001, pull block 1002, guide rod 1003, and fastening block 1101 to return to their original positions. Under the action of the energy storage spring 703, after the hammering roller 603 strikes, a rebound effect occurs. The hammering rod 602 drives the energy storage block 702 and energy storage rod 701. The upward movement forces the lifting rod 801 to drive the bent rod 803 downward. When the hook 1102 contacts the fastening block 1101, the arc surface of the hook 1102 and the arc surface of the fastening block 1101 come into contact and compress, causing the hook 1102 to press against the fastening block 1101. Meanwhile, the pulling rod 1001 is in a hinged state. Therefore, the fastening block 1101 drives the guide rod 1003 into the arc-shaped groove 1005, causing the fastening block 1101 to rotate around the hinge point. At this time, the support... The inner rod 1203 slides within the supporting outer rod 1201, and the supporting spring 1204 is compressed until the fastening block 1101 moves up to a certain height. Then, the hook 1102 hooks the fastening block 1101 again to form a fastening state, thereby restoring the device to its original state and realizing the automatic closed-loop effect of the device's movement. If the drawer 2 cannot be pushed again, the drawer 2 is pulled back and pushed forward again until the moving contact 301 and the stationary contact 302 are connected, ensuring the smooth connection of the circuit.

[0032] This device uses the squeezing effect to drive the transmission component 9 to move, pulling the block 1002 backward and lifting it, pulling the buckle block 1101 out. At this time, the stored energy is released, and the hammering roller 603 performs hammering to achieve multi-directional correction. After the hammering is completed, the energy storage component 7 rebounds, causing the hook 1102 to squeeze the buckle block 1101 and move within the arc groove 1005. Just then, the hook 1102 snaps into the buckle block 1101 again, completing the closed loop of the action.

[0033] This solution enables normal insertion and removal of the connecting component 3 under normal conditions; in case of an anomaly, it can hammer the connecting component 3 to restore it to its normal state; furthermore, after hammering, the device can achieve automatic closed-loop operation, so that when the drawer 2 is pushed or pulled, the connecting component 3 can be continuously hammered until it returns to normal, improving the reliability of the system. Especially in emergency situations, there is no need for emergency repairs, power supply can be quickly restored, the emergency response speed can be improved, the adaptability of the device can be improved, and the functional stability of the device can be improved.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-voltage withdrawable switchgear, characterized in that, The system includes a cabinet (1), on which a drawer (2) for installing electrical components is provided. A connecting component (3) for circuit connection is provided between the cabinet (1) and the drawer (2). A sliding component (4) is provided on the connecting component (3). A pressing component (5) is provided between the connecting component (3) and the sliding component (4). A hammering component (6) for hammering the connecting component (3) is provided on the sliding component (4). A power storage component (7) is provided on the hammering component (6). A lifting component (8) is provided on the power storage component (7). The sliding component (4) and the pressing component (5) are connected by a pressing component (6). A transmission component (9) is provided between the components (5), and a pulling component (10) is provided on the transmission component (9). A fastening component (11) is provided between the pulling component (10) and the lifting component (8). When the connecting component (3) is normal, the drawer (2) is pushed to force the connecting component (3) to be inserted and removed normally. When the connecting component (3) is abnormally stuck, the drawer (2) is pushed, causing the squeezing component (5) to act, forcing the power storage component (7) to store power and release it, causing the hammering component (6) to hammer the connecting component (3), forcing the connecting component (3) to return to normal.

2. A low-voltage withdrawable switchgear according to claim 1, characterized in that, The connecting component (3) includes a moving contact (301) disposed on the drawer (2), and a stationary contact (302) adapted to the moving contact (301) is disposed on the inner wall of the cabinet (1). A mounting plate (303) is disposed on the stationary contact (302), and the mounting plate (303) is mounted on the cabinet (1) by screws and nuts.

3. A low-voltage withdrawable switchgear according to claim 2, characterized in that, The sliding assembly (4) includes an insulating sleeve (401) slidably disposed on the outer ring of the stationary contact (302), the stationary contact (302) passing through the insulating sleeve (401), the outer ring of the insulating sleeve (401) is provided with a mounting sleeve (402), and the mounting sleeve (402) is provided with a mounting bracket (403).

4. A low-voltage withdrawable switchgear according to claim 3, characterized in that, The extrusion assembly (5) includes a connecting block (501) disposed on the moving contact (301), an extrusion rod (502) passing through the connecting block (501) is disposed on the mounting bracket (403), and an extrusion spring (503) sleeved on the outer ring of the extrusion rod (502) is disposed between the connecting block (501) and the mounting bracket (403).

5. A low-voltage withdrawable switchgear according to claim 3, characterized in that, The hammering assembly (6) includes a support block (601) disposed on the mounting bracket (403), a hammering rod (602) is hinged on the support block (601), and a hammering roller (603) adapted to the stationary contact (302) is bearing connected to the hammering rod (602).

6. A low-voltage withdrawable switchgear according to claim 3, characterized in that, The energy storage component (7) includes an energy storage rod (701) disposed on the mounting frame (403), the energy storage rod (701) passing through the mounting frame (403), an energy storage block (702) disposed on the energy storage rod (701), and an energy storage spring (703) sleeved on the outer ring of the energy storage rod (701) between the energy storage block (702) and the mounting frame (403).

7. A low-voltage withdrawable switchgear according to claim 6, characterized in that, The lifting assembly (8) includes a lifting rod (801) hinged to the mounting bracket (403), with a lifting block (802) hinged to the end of the lifting rod (801) and connected to the power storage rod (701), and a bent rod (803) provided at the other end of the lifting rod (801).

8. A low-voltage withdrawable switchgear according to claim 7, characterized in that, The transmission assembly (9) includes a support rod (901) disposed on the connecting block (501), a first transmission rack (902) disposed on the support rod (901), a second transmission rack (903) slidably disposed on the mounting bracket (403), and a transmission gear (904) connected to the mounting bracket (403) by a bearing, which meshes with both the first transmission rack (902) and the second transmission rack (903).

9. A low-voltage withdrawable switchgear according to claim 8, characterized in that, The pulling assembly (10) includes a pulling rod (1001) hinged to the transmission rack (903), a pulling block (1002) provided on the pulling rod (1001), a guide rod (1003) provided on the pulling block (1002), and an inclined groove (1004) and an arc-shaped groove (1005) adapted to the guide rod (1003) on the mounting bracket (403), wherein the inclined groove (1004) and the arc-shaped groove (1005) are connected; wherein the pulling block (1002) and the guide rod (903) are connected to the guide rod (903). A support assembly (12) is provided between the mounting brackets (403). The support assembly (12) includes an outer support rod (1201) hinged to the mounting bracket (403). A baffle (1202) is hinged to the pull block (1002). An inner support rod (1203) is provided on the baffle (1202) and inserted into the outer support rod (1201). A support spring (1204) is provided between the baffle (1202) and the outer support rod (1201) and sleeved on the outer ring of the inner support rod (1203).

10. A low-voltage withdrawable switchgear according to claim 9, characterized in that, The fastening assembly (11) includes a fastening block (1101) disposed on the pulling block (1002), and a hook body (1102) adapted to the fastening block (1101) is disposed on the bent rod (803). Both the fastening block (1101) and the hook body (1102) are provided with arc surfaces.

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