A delay auxiliary switch with adjustable function
By designing an adjustable delay auxiliary switch, and utilizing the cover to drive the coil spring energy storage and components such as the cam block, toggle block, and guide rod, precise adjustment of the delay time is achieved, solving the problem of cumbersome adjustment in existing technologies and improving operational sensitivity.
Patent Information
- Application Number
- CN202521077559.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-29
AI Technical Summary
Existing non-adjustable delay-type auxiliary switches have low adjustment sensitivity and require adjustment of other physical components to achieve delay parameter adjustment, resulting in a cumbersome operation process.
An adjustable delay auxiliary switch was designed. The switch uses a rotating cover to drive a coil spring to store energy. Combined with a cam block, a toggle block, a guide rod, and a compression spring, the delay contacts are connected and disconnected. The delay time is adjusted by observing the rotation angle with a pointer.
It enables simple adjustment of the time-delay auxiliary switch, improves adjustment sensitivity, and simplifies the operation process.
Smart Images
Figure CN224683034U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of time-delay auxiliary switch technology, specifically relating to a time-delay auxiliary switch with adjustable function. Background Technology
[0002] As a core component of the circuit breaker mechanism, the time-delay auxiliary switch's precise timing control capability directly affects the system's reliability and operational safety. The current mainstream technical solution is a non-adjustable time-delay auxiliary switch, which generally suffers from low adjustment sensitivity. It is necessary to adjust other physical components, such as the length of the mechanism linkage, to achieve the adjustment of the delay parameter, resulting in a cumbersome operation process and the inability to achieve true adjustment. Utility Model Content
[0003] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a time-delay auxiliary switch with adjustable functionality. This invention is simple to operate and enables true adjustment of the time-delay auxiliary switch.
[0004] To achieve the above objectives, the present invention adopts the following technical solution.
[0005] This utility model provides a time-delay auxiliary switch with adjustable function, including a conventional contact module and a rotating shaft passing through the conventional contact module. The conventional contact module includes multiple identical conventional contact substrate units, each of which includes a conventional contact insulating plate. The rotating shaft passes through the central hole of the conventional contact insulating plate, and a first insulating sleeve is fitted around the rotating shaft. A conventional moving contact piece is fitted around the first insulating sleeve. Conventional stationary contact pieces are fitted on both sides of the conventional contact insulating plate. The switch is characterized in that a time-delay trigger module is arranged to the side of the conventional contact module, a time-delay contact module is arranged to the side of the time-delay trigger module, a time-delay adjustment module is arranged to the side of the time-delay contact module, and a cover plate is arranged to the side of the time-delay adjustment module. The time-triggered module, the delay contact module, and the delay adjustment module all pass through the mounting screw and are pressed together by a nut that engages with the mounting screw and is tightened against the side of the delay adjustment module. The cover plate is detachably connected to the delay adjustment module. The end face of the rotating shaft is connected to the delay trigger module. The middle part of the delay adjustment module can rotate and pass through the center hole of the cover plate. A pointer is provided on the outer part of the delay adjustment module and is connected to it. The pointer can rotate simultaneously with the rotatable part of the middle part of the delay adjustment module. A locking member is provided in the middle part of the delay adjustment module. The locking member can lock the rotatable part of the middle part of the delay adjustment module to the cover plate, so that the middle part of the delay adjustment module is fixed and can no longer rotate.
[0006] Furthermore, the delay trigger module includes a delay box, a toggle block, a cam block, a guide rod, and a compression spring. The mounting screw passes through the delay box, and the two sides of the delay box are respectively in close contact with the conventional contact module and the delay contact module. The rotating shaft extends into the central hole of the delay box, and the end face of the rotating shaft is provided with a threaded hole and a boss. The inner hole of the cam block is fitted onto the boss on the end face of the rotating shaft and fixed with screws. The end face of the cam block is provided with a toggle block post. One end face of the guide rod is provided with a round hole, and the compression spring is fitted into the round hole of the guide rod. The delay box is provided with a guide rod groove, and the compression spring is assembled with the guide rod assembly. The guide rod is placed in the guide rod groove, and the guide rod can compress the compression spring and move within the guide rod groove. The end of the guide rod is provided with a protrusion. The toggle block is disposed in the center hole of the delay box. A short shaft is disposed through the center hole of the toggle block. A second insulating sleeve is sleeved on the outside of the short shaft. A cylinder and a boss are provided on one end face of the short shaft. A threaded hole is provided on the end face of the boss. A cylinder is provided on the other end face of the short shaft and a groove is provided in the center of the end face. The center hole of the toggle block is fitted onto the boss of the short shaft and fixed with screws. The end of the toggle block is provided with a protrusion corresponding to the protrusion of the guide rod. The toggle block post can collide with the outer edge of the toggle block.
[0007] Furthermore, the delay box is also provided with a buffer post fixing groove. The buffer post is interference-fitted in the buffer post fixing groove and partially exposed in the center hole of the delay box. The buffer post can buffer the collision with the toggle block.
[0008] Furthermore, the delay contact module includes multiple identical delay contact substrate units, each of which includes a delay contact insulating plate. The mounting screw passes through the delay contact insulating plate, the short shaft passes through the central hole of the delay contact insulating plate, a delay moving contact piece is sleeved outside the second insulating sleeve, and a delay stationary contact piece is provided on one side of the delay contact insulating plate.
[0009] Furthermore, the delay adjustment module includes a spring box, a cover, and a spring. One end face of the spring box contacts the end face of the delay contact module. The short shaft passes through the inner hole of the spring box. The inner end line of the spring is connected to the cylindrical groove of the short shaft. The outer circle of the cover is fitted onto the spring box. The cover has a positioning groove. The outer end line of the spring is connected to the positioning groove of the cover. The cover can rotate relative to the spring box. One side of the cover has a threaded post that passes through the center hole of the cover plate. The end face of the cover plate contacts the spring box, and the spring box is connected to the cover plate by screws.
[0010] Furthermore, the side of the coil spring box is provided with screw holes, and the limiting screw is screwed into the coil spring box through the threaded holes. The limiting screw corresponds to the protruding part of the edge of the box cover.
[0011] Furthermore, the outer circle of the threaded post is provided with a groove, and the inner hole of the pointer is provided with a boss. The pointer is fitted onto the outside of the threaded post, and the boss of the pointer is engaged with the groove of the threaded post.
[0012] Furthermore, the locking element is a locking nut that mates with the threaded post. By tightening the locking nut, the lid and the cover plate can be locked together, preventing the lid from rotating.
[0013] The beneficial effects of this utility model.
[0014] This invention uses a rotating cover to drive a coil spring to rotate and store energy. The angle of rotation of the cover can be observed by a pointer, thus indicating the amount of energy stored by the coil spring. The energy storage and release of the coil spring are achieved through a cam block, a toggle block, a guide rod, and a compression spring. The delay contact is rotated through a short shaft to achieve the connection and disconnection of the delay contact, thus realizing true adjustment of the delay-type auxiliary switch. Attached Figure Description
[0015] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is an exploded structural diagram of the present invention.
[0018] Figure 3 This is a structural schematic diagram of the conventional contact module of this utility model.
[0019] Figure 4 This is a schematic diagram of the position and structure of the delay trigger module of this utility model before triggering.
[0020] Figure 5 This is a schematic diagram of the positional structure of the delay trigger module of this utility model after triggering.
[0021] Figure 6 This is a structural schematic diagram of the delay contact module of this utility model.
[0022] Figure 7 This is a schematic diagram of the installation starting position of the delay adjustment module of this utility model.
[0023] Figure 8 This is a schematic diagram of the position structure of the delay adjustment module of this utility model, which can adjust the longest delay time.
[0024] The markings in the diagram are as follows: 1 is the conventional contact module, 2 is the rotating shaft, 3 is the delay trigger module, 4 is the delay contact module, 5 is the delay adjustment module, 6 is the cover plate, 7 is the mounting screw, 8 is the pointer, 9 is the locking element, 10 is the conventional contact insulation plate, 11 is the first insulation sleeve, 12 is the conventional moving contact piece, 13 is the conventional stationary contact piece, 14 is the delay box, 15 is the toggle block, 16 is the cam block, 17 is the guide rod, 18 is the compression spring, 19 is the toggle block post, 20 is the guide rod groove, 21 is the short shaft, 22 is the second insulation sleeve, 23 is the buffer post, 24 is the delay contact insulation plate, 25 is the delay moving contact piece, 26 is the delay stationary contact piece, 27 is the coil spring box, 28 is the box cover, 29 is the coil spring, 30 is the threaded post, and 31 is the limit screw. Detailed Implementation
[0025] As shown in the accompanying drawings, this embodiment provides a time-delay auxiliary switch with adjustable function, including a conventional contact module 1 and a rotating shaft 2 passing through the conventional contact module 1. The conventional contact module 1 includes multiple identical conventional contact substrate units, each of which includes a conventional contact insulating plate 10. The rotating shaft 2 passes through the central hole of the conventional contact insulating plate 10, and a first insulating sleeve 11 is sleeved on the outside of the rotating shaft 2. A conventional moving contact piece 12 is sleeved on the outside of the first insulating sleeve 11. Conventional stationary contact pieces 13 are provided on both sides of the conventional contact insulating plate 10.
[0026] A delay trigger module 3 is provided on the side of the conventional contact module 1, a delay contact module 4 is provided on the side of the delay trigger module 3, and a delay adjustment module 5 is provided on the side of the delay contact module 4. The conventional contact module 1, the delay trigger module 3, the delay contact module 4 and the delay adjustment module 5 all pass through the mounting screw 7 and are pressed together by cooperating with the mounting screw 7 and tightening the nut pressing against the side of the delay adjustment module 5.
[0027] The delay trigger module 3 includes a delay box 14, a toggle block 15, a cam block 16, a guide rod 17, and a compression spring 18.
[0028] The mounting screw 7 passes through the delay box 14. The two sides of the delay box 14 are in close contact with the conventional contact module 1 and the delay contact module 4, respectively. The rotating shaft 2 extends into the center hole of the delay box 14. The end face of the rotating shaft 2 is provided with a threaded hole and a boss. The inner hole of the cam block 16 is fitted onto the boss on the end face of the rotating shaft 2 and fixed with screws. The end face of the cam block 16 is provided with a pusher post 19. The rotation of the rotating shaft 2 can drive the cam block 16 to rotate.
[0029] A circular hole is provided on one end face of the guide rod 17, and the compression spring 18 is fitted into the circular hole of the guide rod 17. A guide rod groove 20 is provided on the delay box 14. The compression spring 18 and the guide rod 17 assembly is installed in the guide rod groove 20. The guide rod 17 can compress the compression spring 18 and move within the guide rod groove 20. A protrusion is provided at the end of the guide rod 17. The toggle block 15 is set in the center hole of the delay box 14. A short shaft 21 is provided through the center hole of the toggle block 15. A second insulating sleeve 22 is fitted on the outside of the short shaft 21. A cylinder and a boss are provided on one end face of the short shaft 21. A threaded hole is provided on the end face of the boss. A cylinder is provided on the other end face of the short shaft 21 and a groove is provided in the center of the end face. The center hole of the toggle block 15 is fitted into the boss of the short shaft 21 and fixed with screws. A protrusion corresponding to the protrusion of the guide rod 17 is provided at the end of the toggle block 15. The guide rod 17 can hold the toggle block 15 in the initial state of the compression spring 18.
[0030] When the cam block 16 rotates, the shift block 19 can collide with the outer edge of the shift block 15. After the collision, the cam block 16 can start to drive the shift block 15 to rotate. At the same time, the shift block 15 pushes the guide rod 17 to compress the compression spring 18 and then disengages from the guide rod 17 to continue rotating. The rotation of the shift block 15 drives the short shaft 21 to rotate.
[0031] The delay box 14 is also provided with a buffer post fixing groove. The buffer post 23 is interference-fitted in the buffer post fixing groove and partially exposed in the center hole of the delay box 14. The buffer post 23 can buffer the collision with the side edge of the toggle block 15.
[0032] The delay contact module 4 includes multiple identical delay contact substrate units. Each delay contact substrate unit includes a delay contact insulating plate 24. The mounting screw 7 passes through the delay contact insulating plate 24, and the short shaft 21 passes through the center hole of the delay contact insulating plate 24. A delay moving contact piece 25 is sleeved on the outside of the second insulating sleeve 22. The rotation of the short shaft 21 can drive the delay moving contact piece 25 to rotate. A delay stationary contact piece 26 is provided on one side of the delay contact insulating plate 24.
[0033] The delay adjustment module 5 includes a spring box 27, a cover 28, and a spring 29. One end face of the spring box 27 contacts the end face of the delay contact module 4. The short shaft 21 passes through the inner hole of the spring box 27. The inner end line of the spring 29 is connected to the cylindrical groove of the short shaft 21. The rotation of the short shaft 21 can drive the spring 29 to store energy. The outer circle of the cover 28 is sleeved on the spring box 27. The cover 28 is provided with a positioning groove. The outer end line of the spring 29 is connected to the positioning groove of the cover 28. The cover 28 can rotate relative to the spring box 27.
[0034] The side of the spring box 27 is provided with screw holes. The limiting screw 31 is screwed into the spring box 27 through the threaded hole. The limiting screw 31 corresponds to the protruding part of the edge of the box cover 28, which can limit the rotation of the box cover 28 and achieve the function of controlling the maximum delay time.
[0035] A cover plate 6 is provided on the side of the delay adjustment module 5. The end face of the cover plate 6 contacts the spring box 27, and the spring box 27 is connected to the cover plate 6 by screws.
[0036] A threaded post 30 is provided on one side of the cover 28 and passes through the center hole of the cover plate 6. A pointer 8 is sleeved on the threaded post 30. A groove is provided on the outer circle of the threaded post 30, and a boss is provided in the inner hole of the pointer 8. The boss of the pointer 8 is matched with the groove of the threaded post 30 so that the pointer 8 can rotate simultaneously with the cover 28.
[0037] The delay adjustment module 5 is equipped with a locking component 9 in the middle. The locking component 9 is a locking nut that cooperates with the threaded post 30. By tightening the locking nut, the cover 28 and the cover plate 6 can be locked together, so that the cover 28 can no longer rotate.
[0038] The specific working principle is as follows: First, rotate the lid 28. The lid 28 drives the coil spring 29 to rotate and store energy. The rotation angle of the lid 28 determines the amount of energy stored by the coil spring 29. After rotating to the appropriate angle, lock the locking piece 9. At this time, the lid 28 is fixed and the coil spring 29 has finished storing energy. The pointer 8 can indicate the rotation angle of the lid 28.
[0039] When the operation begins, the rotating shaft 2 rotates, causing the conventional moving contact 12 and cam block 16 of the conventional contact module 1 to rotate. When the conventional moving contact 12 rotates to a certain angle, it contacts the conventional stationary contact 13, thus achieving the connection of the ordinary contact. At this time, the toggle block 19 of the cam block 16 contacts the guide rod 17, and the guide rod 17 compresses the spring 18 to move. When it moves to a certain position, the guide rod 17 disengages from the toggle block 15 and drives the toggle block 15 to rotate under the action of the coil spring 29. When it rotates to a certain angle, the toggle block 15 contacts the buffer column 23 and is fixed under the force of the coil spring 29. Because the toggle block 15 rotates synchronously with the short shaft 21, the short shaft 21 drives the delay moving contact 25 of the delay contact module 4 to contact the delay stationary contact 26, thus achieving the delayed connection of the delay contact relative to the ordinary contact. By rotating the rotation angle of the cover 28, the torque of the coil spring 29 is adjusted, thereby achieving the delay time of the delayed connection between the delay contact and the ordinary contact.
[0040] When the rotating shaft 2 rotates back to the starting position, the rotating shaft 2 drives the cam block 16 to rotate back. The toggle post 19 of the cam block 16 will contact the toggle block 15, causing the toggle block 15 to rotate. When it rotates to a certain angle, the toggle block 15 contacts the guide rod 17. If the guide rod 17 continues to rotate, it will compress the compression spring 18 and move. The toggle block 15 will pass over the guide rod 17. At the same time, the toggle block 15 will drive the short shaft 21 to rotate synchronously. The short shaft 21 will drive the rotating coil spring 29 to reach the initial energy storage state.
[0041] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.
Claims
1. A time-delay auxiliary switch with adjustable function, comprising a conventional contact module (1) and a rotating shaft (2) passing through the conventional contact module (1), wherein the conventional contact module (1) comprises a plurality of identical conventional contact substrate units, each of the conventional contact substrate units comprising a conventional contact insulating plate (10), the rotating shaft (2) passing through the central hole of the conventional contact insulating plate (10), a first insulating sleeve (11) being sleeved on the outside of the rotating shaft (2), a conventional moving contact piece (12) being sleeved on the outside of the first insulating sleeve (11), and conventional stationary contact pieces (13) being provided on both sides of the conventional contact insulating plate (10), characterized in that, A delay trigger module (3) is provided on the side of the conventional contact module (1), a delay contact module (4) is provided on the side of the delay trigger module (3), a delay adjustment module (5) is provided on the side of the delay contact module (4), and a cover plate (6) is provided on the side of the delay adjustment module (5). The conventional contact module (1), the delay trigger module (3), the delay contact module (4), and the delay adjustment module (5) all pass through the mounting screw (7) and are pressed together by a nut that cooperates with the mounting screw (7) and is tightened against the side of the delay adjustment module (5). The cover plate (6) is detachably connected to the delay adjustment module (5). The end face of the rotating shaft (2) is connected to the delay trigger module (3). The delay adjustment module (5) includes a coil spring. The box (27), the lid (28), and the coil spring (29) are configured to rotate relative to the coil spring box (27). By rotating the lid (28), the torque of the coil spring (29) is adjusted, thereby achieving a delay time between the delay contact and the normal contact. The delay adjustment module (5) is provided with a pointer (8) connected to the outer part of the cover plate (6). The pointer (8) can rotate simultaneously with the rotatable part in the middle of the delay adjustment module (5). A locking member (9) is provided in the middle of the delay adjustment module (5). The locking member (9) can lock the rotatable part in the middle of the delay adjustment module (5) to the cover plate (6), so that the middle part of the delay adjustment module (5) is fixed and can no longer rotate.
2. The time-delay auxiliary switch with adjustable function according to claim 1, characterized in that, The delay trigger module (3) includes a delay box (14), a toggle block (15), a cam block (16), a guide rod (17), and a compression spring (18). The mounting screw (7) passes through the delay box (14). The two sides of the delay box (14) are respectively in close contact with the conventional contact module (1) and the delay contact module (4). The rotating shaft (2) extends into the center hole of the delay box (14). The end face of the rotating shaft (2) is provided with a threaded hole and a boss. The inner hole of the cam block (16) is fitted onto the boss on the end face of the rotating shaft (2) and fixed with screws. The end face of the cam block (16) is provided with a toggle block post (19). One end face of the guide rod (17) is provided with a round hole. The compression spring (18) is fitted into the round hole of the guide rod (17). The delay box (14) is provided with a guide rod groove (20). The compression spring (18) and the guide rod (15) are connected. 17) The component is installed in the guide rod groove (20). The guide rod (17) can compress the compression spring (18) and move in the guide rod groove (20). The end of the guide rod (17) is provided with a protrusion. The toggle block (15) is provided in the center hole of the delay box (14). A short shaft (21) is provided through the center hole of the toggle block (15). A second insulating sleeve (22) is sleeved on the outside of the short shaft (21). A cylinder and a boss are provided on one end face of the short shaft (21). A threaded hole is provided on the end face of the boss. A cylinder is provided on the other end face of the short shaft (21) and a groove is provided in the center of the end face. The center hole of the toggle block (15) is sleeved on the boss of the short shaft (21) and fixed with screws. The end of the toggle block (15) is provided with a protrusion corresponding to the protrusion of the guide rod (17). The toggle block post (19) can collide with the outer edge of the toggle block (15).
3. A time-delay auxiliary switch with adjustable function according to claim 2, characterized in that, The delay box (14) is also provided with a buffer post fixing groove. The buffer post (23) is interference-fitted in the buffer post fixing groove and partially exposed in the center hole of the delay box (14). The buffer post (23) can buffer the collision with the toggle block (15).
4. A time-delay auxiliary switch with adjustable function according to claim 2, characterized in that, The delay contact module (4) includes multiple identical delay contact substrate units. Each delay contact substrate unit includes a delay contact insulating plate (24). The mounting screw (7) passes through the delay contact insulating plate (24). The short shaft (21) passes through the center hole of the delay contact insulating plate (24). A delay moving contact piece (25) is sleeved on the outside of the second insulating sleeve (22). A delay stationary contact piece (26) is provided on one side of the delay contact insulating plate (24).
5. A time-delay auxiliary switch with adjustable function according to claim 2, characterized in that, One end face of the coil spring box (27) is in contact with the end face of the delay contact module (4). The short shaft (21) passes through the inner hole of the coil spring box (27). The inner end line of the coil spring (29) is connected to the cylindrical groove of the short shaft (21). The outer circle of the cover (28) is fitted onto the coil spring box (27). The cover (28) is provided with a positioning groove. The outer end line of the coil spring (29) is connected to the positioning groove of the cover (28). A threaded post (30) is provided on one side of the cover (28) and passes through the center hole of the cover plate (6). The end face of the cover plate (6) is in contact with the coil spring box (27), and the coil spring box (27) is connected to the cover plate (6) by screws.
6. A time-delay auxiliary switch with adjustable function according to claim 1, characterized in that, The side of the spring box (27) is provided with screw holes, and the limiting screw (31) is screwed into the spring box (27) through the screw holes. The limiting screw (31) corresponds to the protruding part of the edge of the box cover (28).
7. A time-delay auxiliary switch with adjustable function according to claim 5, characterized in that, The outer circle of the threaded column (30) is provided with a groove, and the inner hole of the pointer (8) is provided with a boss. The pointer (8) is fitted onto the outside of the threaded column (30), and the boss of the pointer (8) is matched with the groove of the threaded column (30).
8. A time-delay auxiliary switch with adjustable function according to claim 5, characterized in that, The locking element (9) is a locking nut that cooperates with the threaded post (30). By tightening the locking nut, the box cover (28) and the cover plate (6) can be locked together, so that the box cover (28) can no longer rotate.