Drawer linkage structure
By designing a drawer linkage structure in the electrical control cabinet, and using the handle and transmission mechanism to achieve rapid operation of the circuit breaker switch, the problem of slow response speed in emergencies is solved, and the operation efficiency and stability are improved.
Patent Information
- Application Number
- CN202422297811.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In an electrical control cabinet, the lock between the drawer and the cabinet door needs to be unlocked before the circuit breaker can be operated, resulting in slow response speed in emergencies.
A drawer linkage structure is designed, which drives the transmission mechanism by rotating the handle, and then swings the paddle to control the opening and closing of the circuit breaker switch, so as to achieve quick operation without unlocking the drawer.
It improves the rapid operation efficiency of the circuit breaker, enhances the stability and accuracy of the paddle, reduces operational errors, and improves the response speed in emergencies.
Smart Images
Figure CN223261133U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrical equipment, and in particular to a drawer linkage structure. Background Art
[0002] A large number of circuits and circuit components are assembled in an electrical control cabinet, wherein the control cabinet has drawers for installing the components, and circuit breakers that control current switches are also installed in the drawers.
[0003] There is usually a lock between the drawer and the cabinet door. When operating the circuit breaker, it is necessary to unlock it first and then operate it by pulling out the drawer, which results in slow operation in an emergency and is not conducive to quick response. Utility Model Content
[0004] In order to improve the efficiency of circuit breaker control, the present application provides a drawer linkage structure.
[0005] This application provides a drawer linkage structure, which adopts the following technical solutions:
[0006] A drawer linkage structure is provided between a circuit breaker and a drawer, comprising: a handle rotatably connected to the drawer door panel;
[0007] A mounting rack is provided in the drawer;
[0008] a paddle rotatably connected to the mounting bracket, with a rotation axis perpendicular to the toggling direction of the circuit breaker switch, and the paddle having a recess for the circuit breaker switch to enter;
[0009] The transmission mechanism is fitted between the handle and the paddle, and is used to drive the paddle to swing when the handle is rotated, so that the paddle drives the circuit breaker switch to move for opening and closing.
[0010] By adopting the above technical solution, the handle is rotated, and the transmission mechanism is cooperated to drive the paddle to swing, and then the paddle drives the circuit breaker switch to move for opening and closing, thereby realizing rapid operation of the circuit breaker switch without having to unlock the drawer before operation, thereby improving the response speed in emergency situations.
[0011] Optionally, a guide member is provided on the mounting frame, and the guide member extends to penetrate the paddle, and the paddle has a guide hole for the guide member to slide, and the guide hole extends around the circumference of the rotation axis of the paddle.
[0012] By adopting the above technical solution, the stability and accuracy of the paddle during rotation are improved, and operational errors caused by paddle deviation are reduced.
[0013] Optionally, the guide member has two clamping pieces, the two clamping pieces are respectively in contact with two opposite sides of the paddle, and the guide hole passes through the edge of the paddle.
[0014] By adopting the above technical solution, the rotation stability of the paddle is further enhanced, and the paddle is less likely to shake during operation.
[0015] Optionally, the transmission mechanism includes an output member and a linkage assembly, the linkage assembly is mounted on the handle, and the output member cooperates with the linkage assembly, and the rotation of the handle drives the output member to move in a straight line direction through the linkage assembly;
[0016] The output member slides on the paddle at the same time. The paddle has a linkage groove for the output member to move. The extension direction of the linkage groove is inclined relative to the moving direction of the output member, so that the output member drives the paddle to swing when it moves.
[0017] By adopting the above technical solution, the linkage assembly is installed on the handle, and the output member cooperates with the linkage assembly to achieve linear movement of the output member when the handle is rotated. The linkage groove on the paddle is inclined with the movement direction of the output member, so that the output member can drive the paddle to swing when it moves.
[0018] Optionally, the rotation axis of the handle and the rotation axis of the paddle are perpendicular to each other, and the linkage assembly includes a gear and a rack; the gear is connected to the handle and is coaxial with the rotation axis of the handle; the rack moves on the mounting frame, and the rack is engaged with the gear, and the output member is fixedly connected to the rack.
[0019] By adopting the above technical solution, the linkage assembly adopts a gear and rack design. The gear is connected to the handle, and the rack meshes with the gear to drive the output member to move. The transmission method is simple in structure, high in transmission efficiency, and has good stability.
[0020] Optionally, the handle includes a central shaft and an operating handle, wherein the central shaft is rotatably connected to the drawer; the operating handle is coaxially sleeved and moves on the central shaft along the axial direction of the central shaft, and one end of the operating handle passes through the drawer door panel and extends to the outside of the drawer;
[0021] A limiting column is fixed in the drawer, and the operating handle has a limiting groove and an adjustment groove that are interconnected and allow the limiting column to slide. The limiting grooves have two and extend axially along the central axis. The adjustment groove is connected between the two ends of the limiting grooves and extends circumferentially along the central axis.
[0022] When the operating handle moves to the point where the limit column is aligned with one of the limit slots, the transmission mechanism drives the paddle to toggle the circuit breaker switch to the on state; when the operating handle moves to the point where the limit column is engaged with the other limit slot, the transmission mechanism drives the paddle to toggle the circuit breaker switch to the off state.
[0023] By adopting the above technical solution, the on-off control of the circuit breaker switch is achieved through the cooperation between the limit column, the limit groove and the adjustment groove, so that the circuit breaker can be adjusted by rotating the operating handle.
[0024] Optionally, the outer wall of the central shaft has a travel portion, and the inner wall of the operating handle has a travel groove for the travel portion to move along the axis of the central shaft.
[0025] By adopting the above technical solution, the cooperation between the travel portion and the travel groove can guide the movement of the operating handle.
[0026] Optionally, a ring protrusion is rotatably provided on the outer wall of the operating handle, and an elastic member is provided between the ring protrusion and the inner wall of the drawer. The elastic member is used to drive the operating handle to move so that the operating handle has a tendency to make the limiting column and the limiting groove move away from one end of the adjustment groove.
[0027] By adopting the above technical solution, an elastic member is provided between the annular protrusion and the inner wall of the drawer to drive the operating handle to move, so that the operating handle can automatically return to its initial position when no external force is applied, facilitating the next operation.
[0028] Optionally, the adjustment groove is connected to an end of the limiting groove close to the drawer door panel.
[0029] By adopting the above technical solution, the operating handle needs to be pressed in order for the limiting column to move from the limiting slot to the adjusting slot.
[0030] In summary, this application has at least one of the following beneficial effects:
[0031] 1. By setting up a handle, a mounting bracket, a paddle, and a transmission mechanism, when the handle is turned, the transmission mechanism drives the paddle to swing, thereby toggling the circuit breaker switch, achieving the effect of quickly opening and closing the circuit breaker without unlocking the drawer;
[0032] 2. By providing a guide member and a guide hole, the rotation of the pick is guided to improve the stability of the pick rotation. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 It is a structural diagram of an embodiment of the present application;
[0034] Figure 2This is a schematic diagram of the structure of the circuit breaker and the paddle in the embodiment of the present application;
[0035] Figure 3 This is a schematic diagram of the exploded structure of the handle of an embodiment of the present application;
[0036] Figure 4 This is a schematic diagram of the exploded structure of the handle of an embodiment of the present application at another angle.
[0037] Explanation of the accompanying reference numerals: 1. handle; 101. center axis; 102. operating handle; 2. mounting bracket; 3. paddle; 4. clearance groove; 5. guide member; 6. guide hole; 7. clamping piece; 8. output member; 9. linkage assembly; 91. gear; 92. rack; 10. linkage groove; 11. limiting column; 12. limiting groove; 13. adjusting groove; 14. stroke portion; 15. stroke groove; 16. annular protrusion; 17. elastic member; 18. stroke hole; 19. guide column; 20. rotating seat; 21. circuit breaker. DETAILED DESCRIPTION
[0038] The following is combined with Figure 1-4 This application is described in further detail.
[0039] The embodiment of the present application discloses a drawer linkage structure. Figure 1 The structure is arranged between the circuit breaker 21 and the drawer so that the switch of the circuit breaker 21 can be opened and closed from the outside of the drawer. The drawer linkage structure includes a handle 1, a mounting frame 2, a paddle 3 and a transmission mechanism.
[0040] The handle 1 is pivoted on the drawer, with one end extending from the drawer door panel to the outer wall of the drawer, allowing the operator to move the handle 1 from outside the drawer. A mounting bracket 2 is installed in the drawer and serves as a mounting base for other components, including a circuit breaker 21.
[0041] Reference Figure 1 and Figure 2 The paddle 3 is rotatably connected to the mounting frame 2 via a rotating shaft, and the rotation axis is perpendicular to the toggle direction of the circuit breaker 21. In particular, the paddle 3 is provided with a clearance groove 4, which is used to accommodate the circuit breaker 21, so that the circuit breaker 21 can be moved when the paddle 3 is swung.
[0042] The transmission mechanism, located between the handle 1 and the paddle 3, transmits power. When the operator rotates the handle 1, the transmission mechanism converts this rotation into a swinging motion of the paddle 3. This swinging motion controls the movement of the circuit breaker 21, opening and closing the circuit breaker 21. The transmission mechanism includes an output member 8 and a linkage assembly 9. The linkage assembly 9 is mounted in the drawer and operatively linked to the handle 1. The linkage assembly also engages with the output member 8, driving the output member 8 vertically up and down as the handle 1 rotates.
[0043] Reference Figure 2 and Figure 3 Specifically, the output member 8 is cylindrical and extends horizontally and perpendicular to the rotation axis of the handle 1. The mounting bracket 2 has a portion extending opposite the output member 8. The output member 8 passes through the mounting bracket 2 and has a travel hole 18 on the mounting bracket 2 for the output member 8 to slide up and down. Simultaneously, the output member 8 slides on the paddle 3, which has a linkage slot 10 for the output member 8 to slide through. The linkage slot 10 extends in an oblique direction relative to the direction of movement of the output member 8. This allows the output member 8 to swing the paddle 3 about its corresponding rotation axis as it moves up and down, causing the paddle 3 to push the circuit breaker 21 switch relative to the circuit breaker 21 body to either an on-circuit or short-circuit state.
[0044] Reference Figure 2 Furthermore, a guide member 5 is fixed on the mounting frame 2. The guide member 5 is in the shape of a column with an axis parallel to the axis of the output member 8. The guide member 5 passes through the paddle 3. A guide hole 6 is provided on the paddle 3 for the guide member 5 to slide. The guide hole 6 is in the shape of an arc with an axis coaxial with the rotating axis of the paddle 3. The guide member 5 slides in the guide hole 6 to guide the swing of the paddle 3, thereby improving the stability of the swing of the paddle 3.
[0045] Furthermore, two clamping pieces 7 are fixed to the guide member 5. These two clamping pieces 7 are spaced apart axially along the guide member 5 and are annular in shape, with an outer diameter larger than that of the guide member 5. The two clamping pieces 7 abut opposite sides of the plectrum 3, respectively, to enhance the stability of the plectrum 3 and improve the accuracy of its swinging motion. Furthermore, the guide hole 6 extends through the edge of the plectrum 3, facilitating assembly of the guide member 5 while minimizing interference with the normal swinging motion of the plectrum 3.
[0046] Reference Figure 1 and Figure 3More specifically, the linkage assembly 9 includes a gear 91 and a rack 92. Gear 91 is coaxially fixed to the end of the handle 1 located in the drawer. Rack 92 moves up and down on the mounting bracket 2 and meshes with gear 91. The output member 8 is fixed to the side of the rack 92 facing away from the gear 91. A guide post 19 is also fixed to the rack 92, which slides up and down in the travel hole 18. The guide post 19 and the output member 8 guide the movement of the rack 92 together. When the handle 1 is turned, the gear 91 drives the rack 92 to move, thereby driving the output member 8 to move in a linear direction.
[0047] Reference Figure 3 and Figure 4 Furthermore, the handle 1 includes a central axis 101 and an operating handle 102. A rotating base 20 is fixed in the drawer, and the central axis 101 is rotatably connected to the rotating base 20. As the rotation center of the handle 1, the gear 91 is coaxially fixed to the outer wall of the central axis 101. The operating handle 102 is cylindrical with a hollow interior. One end of the operating handle 102 is coaxially sleeved on the central axis 101 and can move along the axial direction of the central axis 101. The end of the operating handle 102 away from the central axis 101 passes through the drawer door panel and extends to the outside of the drawer, making it convenient for the operator to operate. Among them, a travel portion 14 protruding from the outer wall of the central axis 101 is provided on the outer wall of the end of the central axis 101 away from the rotating base 20, and a travel groove 15 for the sliding of the travel portion 14 is provided on the inner wall of the operating handle 102 along a direction parallel to its own axial direction to guide the movement of the operating handle 102 relative to the central axis 101.
[0048] Reference Figure 1 and Figure 4 To enable the operating handle 102 to move and rotate the central axis 101, a fixed limit post 11 is installed in the drawer. The limit post 11 extends perpendicular to the axial direction of the operating handle 102. The outer wall of the operating handle 102, located within the drawer, is provided with a limit slot 12 and an adjustment slot 13, into which the limit post 11 abuts and allows for sliding movement. There are two limit slots 12 spaced circumferentially around the operating handle 102. Both limit slots 12 extend axially along the operating handle 102 and correspond to the on and off states of the circuit breaker 21, respectively. The adjustment slot 13 connects the ends of the two limit slots 12 closest to the drawer panel and extends circumferentially along the central axis 101. When the operating handle 102 is moved, the limit post 11 can be switched between the two limit slots 12 and the adjustment slot, thereby controlling the on and off states of the circuit breaker 21.
[0049] In particular, the part of the operating handle 102 located in the drawer is also coaxially sleeved and rotated with a ring protrusion 16, and an elastic member 17 is connected between the ring protrusion 16 and the inner wall of the drawer door panel. The elastic member 17 is a spring sleeved on the operating handle 1. The elastic force of the spring drives the ring protrusion 16 to move toward the drawer door panel, so that the operating handle 102 has a tendency to make the limiting column 11 and the limiting groove 12 away from one end of the adjustment groove 13 cooperate, so that when the limiting column 11 is opposite to any limiting groove 12, the operating handle 1 is driven by the spring to move toward the drawer door panel, so that the limiting column 11 remains in a state of abutting against the end of the limiting groove 12 away from the adjustment groove 13, so as to limit the rotation of the operating handle 102 relative to the drawer in a natural state, so that the operating handle 102 is not easily rotated by mistake.
[0050] When the operator needs to switch the circuit breaker 21 to the on state, he presses the operating handle 102 to slide the limit column 11 into the adjustment slot 13, then rotates the operating handle 102 to align the limit column 11 with the limit slot 12 corresponding to the on state of the circuit breaker 21. The transmission mechanism will then drive the paddle 3 to switch the circuit breaker 21 to the on state. Similarly, when the circuit breaker 21 needs to be switched to the off state, the operator presses the operating handle 102 to align the limit column 11 with the limit slot 12 corresponding to the off state of the circuit breaker 21. The transmission mechanism will then drive the paddle 3 to switch the circuit breaker 21 to the off state.
[0051] The implementation principle of a drawer linkage structure in an embodiment of the present application is: after pressing the operating handle 102, the operating handle 102 is rotated, and the linkage transmission mechanism drives the paddle 3 to toggle the switch of the circuit breaker 21, so that the switch of the circuit breaker 21 is toggled to the on state or short circuit state of the circuit breaker 21.
[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A drawer linkage structure, arranged between a circuit breaker (21) and a drawer, characterized in that: include: A handle (1) is rotatably connected to the drawer door panel; A mounting frame (2) is arranged in the drawer; A paddle (3) is rotatably connected to the mounting frame (2), with a rotation axis perpendicular to the direction of toggling of the circuit breaker (21) switch, and the paddle (3) has a clearance groove (4) for the circuit breaker (21) switch to enter; A transmission mechanism is engaged between the handle (1) and the paddle (3) and is used to drive the paddle (3) to swing when the handle (1) rotates, so that the paddle (3) drives the switch of the circuit breaker (21) to move for opening and closing.
2. The drawer linkage structure according to claim 1, characterized in that: A guide member (5) is provided on the mounting frame (2), and the guide member (5) extends to penetrate the paddle (3). The paddle (3) has a guide hole (6) for the guide member (5) to slide, and the guide hole (6) extends around the circumference of the rotation axis of the paddle (3).
3. The drawer linkage structure according to claim 2, characterized in that: The guide member (5) is provided with a clamping piece (7), and there are two clamping pieces (7). The two clamping pieces (7) are respectively in contact with two opposite sides of the pick (3), and the guide hole (6) passes through the edge of the pick (3).
4. The drawer linkage structure according to claim 1, characterized in that: The transmission mechanism comprises an output member (8) and a linkage assembly (9), wherein the linkage assembly (9) is mounted on the handle (1), and the output member (8) cooperates with the linkage assembly (9), and the handle (1) rotates to drive the output member (8) to move in a linear direction through the linkage assembly (9); The output member (8) slides on the paddle (3) at the same time. The paddle (3) has a linkage groove (10) for the output member (8) to move. The extension direction of the linkage groove (10) is inclined relative to the moving direction of the output member (8), so that the output member (8) drives the paddle (3) to swing when it moves.
5. The drawer linkage structure according to claim 4, characterized in that: The rotation axis of the handle (1) and the rotation axis of the paddle (3) are perpendicular to each other. The linkage assembly (9) includes a gear (91) and a rack (92); the gear (91) is connected to the handle (1) and is coaxial with the rotation axis of the handle (1); the rack (92) moves on the mounting frame (2), and the rack (92) is engaged with the gear (91), and the output member (8) is fixedly connected to the rack (92).
6. A drawer linkage structure according to any one of claims 1 to 5, characterized in that: The handle (1) comprises a central shaft (101) and an operating handle (102), wherein the central shaft (101) is rotatably connected to the drawer; the operating handle (102) is coaxially sleeved and moves on the central shaft (101) along the axial direction of the central shaft (101), and one end of the operating handle (102) passes through the drawer door panel and extends to the outside of the drawer; A limiting column (11) is fixed in the drawer, and the operating handle (102) has a limiting groove (12) and an adjustment groove (13) that are interconnected and for the limiting column (11) to slide, the limiting groove (12) has two and extends axially along the central axis (101), the adjustment groove (13) is connected between the two ends of the limiting grooves (12), and the adjustment groove (13) extends circumferentially along the central axis (101); When the operating handle (102) moves to the point where the limiting column (11) is aligned with one of the limiting slots (12), the transmission mechanism drives the paddle (3) to toggle the switch of the circuit breaker (21) to the on state; when the operating handle (102) moves to the point where the limiting column (11) is engaged with the other limiting slot (12), the transmission mechanism drives the paddle (3) to toggle the switch of the circuit breaker (21) to the off state.
7. The drawer linkage structure according to claim 6, characterized in that: The outer wall of the central shaft (101) has a travel portion (14), and the inner wall of the operating handle (102) has a travel groove (15) for the travel portion (14) to move along the axis of the central shaft (101).
8. The drawer linkage structure according to claim 6, characterized in that: An annular protrusion (16) is rotatably provided on the outer wall of the operating handle (102), and an elastic member (17) is provided between the annular protrusion (16) and the inner wall of the drawer. The elastic member (17) is used to drive the operating handle (102) to move, so that the operating handle (102) has a tendency to engage the limiting column (11) with the limiting groove (12) away from one end of the adjustment groove (13).
9. The drawer linkage structure according to claim 6, characterized in that: The adjustment groove (13) is connected to one end of the limiting groove (12) close to the drawer door panel.