Time-delay auxiliary switch with adjustable function

Abstract

The invention discloses a time-delay auxiliary switch with an adjustable function, and belongs to the technical field of time-delay auxiliary switches. The device comprises a conventional contact module and a rotating shaft penetrating through the conventional contact module, a delay trigger module is arranged on the side of the conventional contact module, a delay contact module is arranged on the side of the delay trigger module, a delay adjusting module is arranged on the side of the delay contact module, and a cover plate is arranged on the side of the delay adjusting module. The conventional contact module, the delay trigger module, the delay contact module and the delay adjusting module simultaneously penetrate through the mounting screw rod, the cover plate is detachably connected with the delay adjusting module, the end face of the rotating shaft is connected with the delay trigger module, and the middle of the delay adjusting module can rotate and penetrate through a center hole of the cover plate. The delay adjusting module is matched and connected with a pointer on the outer side part of the cover plate; and a locking piece is arranged in the middle of the delay adjusting module. The method is simple to operate, and the time-delay auxiliary switch can be adjusted in a real sense.

Description

Technical Field

[0001] The invention belongs to the technical field of time-delay auxiliary switches, and in particular relates to a time-delay auxiliary switch with an adjustable function. Background Art

[0002] As a core component in the circuit breaker mechanism, the delayed 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 delayed auxiliary switch, which generally suffers from low adjustment sensitivity. Delay parameter adjustment requires adjusting other physical components, such as the length of the mechanism's connecting rod, resulting in a cumbersome operating process and the inability to achieve true adjustment. Summary of the Invention

[0003] The present invention aims to solve the above problems, remedy the deficiencies of the prior art, and provide a time-delay auxiliary switch with an adjustable function. The present invention is simple to operate and can achieve true adjustment of the time-delay auxiliary switch.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions.

[0005] The present invention provides a time-delay auxiliary switch with an adjustable function, comprising a conventional contact module and a rotating shaft passing through the conventional contact module, wherein the conventional contact module comprises a plurality of identical conventional contact substrate units, each of the conventional contact substrate units comprises a conventional contact insulating plate, the rotating shaft passes through the center hole of the conventional contact insulating plate, a first insulating sleeve is sleeved on the outer side of the rotating shaft, a conventional moving contact piece is sleeved on the outer side of the first insulating sleeve, conventional static contact pieces are provided on both sides of the conventional contact insulating plate, and the conventional contact module is characterized in that a time-delay trigger module is provided on the side of the conventional contact module, a time-delay contact module is provided on the side of the time-delay trigger module, a time-delay adjustment module is provided on the side of the time-delay contact module, a cover plate is provided on the side of the time-delay adjustment module, the conventional contact module and the time-delay contact module are provided. The trigger module, the delay contact module and the delay adjustment module pass through the mounting screw at the same time, and are pressed together by cooperating with the mounting screw and tightening the nut on the side of the delay adjustment module. The cover plate is detachably connected to the delay adjustment module, and 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. The delay adjustment module is provided with a pointer in a cooperating connection on the outer part of the cover plate, and the pointer can rotate simultaneously with the rotatable part in the middle of the delay adjustment module. A locking piece is provided in the middle of the delay adjustment module, and the rotatable part in the middle of the delay adjustment module can be locked with the cover plate through the locking piece, 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 shift block, a cam block, a guide rod, and a compression spring. The mounting screw passes through the delay box. The two side surfaces of the delay box are respectively tightly attached to the conventional contact module and the delayed contact module. The rotating shaft extends into the center hole of the delay box. The end face of the rotating shaft is provided with a threaded hole and a boss. The inner hole of the cam block is sleeved on 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 shift block column. A circular hole is provided on one end face of the guide rod. The compression spring is sleeved in the circular hole of the guide rod. A guide rod groove is provided on the delay box. The compression spring is installed with the guide rod assembly The cam is placed in the guide rod groove, and the guide rod can compress the compression spring to move in the guide rod groove. A protrusion is provided at the end of the guide rod, and the shift block is arranged in the center hole of the delay box. A short shaft is provided through the center hole of the shift block, and a second insulating sleeve is provided on the outside of the short shaft. A cylinder and a boss are provided on one end face of the short shaft, and 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 shift block is sleeved on the short shaft boss and fixed with screws. A protrusion corresponding to the guide rod protrusion is provided on the end of the shift block, and the shift block column can collide with the outer edge of the shift block.

[0007] Furthermore, a buffer column fixing groove is provided on the delay box, the buffer column is interference-fitted in the buffer column fixing groove and partially exposed to the central hole of the delay box, and the buffer column can buffer collision with the shift block.

[0008] Furthermore, the delayed contact module includes a plurality of identical delayed contact substrate units, each of the delayed contact substrate units includes a delayed contact insulating plate, the mounting screw passes through the delayed contact insulating plate, the short shaft passes through the center hole of the delayed contact insulating plate, the outer side of the second insulating sleeve is provided with a delayed moving contact piece, and a delayed static contact piece is provided on one side of the delayed contact insulating plate.

[0009] Furthermore, the delay adjustment module includes a coil spring box, a box cover and a coil spring, one end face of the coil spring box contacts the end face of the delay contact module, the short shaft passes through the inner hole of the coil spring box, the inner ring end line of the coil spring is matched with the cylindrical groove of the short shaft, the outer circle of the box cover is sleeved on the coil spring box, the box cover is provided with a positioning groove, the outer ring end line of the coil spring is matched with the positioning groove of the box cover, the box cover can rotate relative to the coil spring box, a threaded column is provided on one side of the box cover and passes through the center hole of the cover plate, the end face of the cover plate contacts the coil spring box, and the coil spring box is connected to the cover plate by screws.

[0010] Furthermore, a screw hole is provided on the side of the coil spring box, and a limit screw is screwed into the coil spring box through the threaded hole, and the limit screw corresponds to the protruding portion of the edge of the box cover.

[0011] Furthermore, the outer circle of the threaded column is provided with a groove, and the inner hole of the pointer is provided with a boss. The pointer is put on the outside of the threaded column, and the boss of the pointer is matched with the groove of the threaded column.

[0012] Furthermore, the locking member is a locking nut matched with the threaded column, and the box cover and the cover plate can be locked to each other by tightening the locking nut, so that the box cover can no longer rotate.

[0013] Beneficial effects of the present invention.

[0014] The present invention drives the coil spring to rotate and store energy by rotating the box cover. The angle of rotation of the box cover can be observed through the pointer, and the size of the rotational energy stored in the coil spring can be known. The energy storage and release of the coil spring are realized by the cam block, the shift block, the guide rod and the compression spring. The delay contact is driven to rotate by the short shaft to realize the connection and disconnection of the delay contact, thereby realizing the true adjustment of the delay type auxiliary switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is 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 only used to explain the present invention and are not intended to limit the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0018] Figure 3 Schematic diagram of the structure of a conventional contact module of the present invention.

[0019] Figure 4 It is a schematic diagram of the position structure of the delay trigger module of the present invention before triggering.

[0020] Figure 5 It is a schematic diagram of the position structure of the delay trigger module of the present invention after being triggered.

[0021] Figure 6 It is a structural schematic diagram of the time-delay contact module of the present invention.

[0022] Figure 7 It is a structural diagram of the installation starting position of the delay adjustment module of the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the position of the longest delay time that can be adjusted by the delay adjustment module of the present invention.

[0024] Markings in the figure: 1 is a conventional contact module, 2 is a rotating shaft, 3 is a delay trigger module, 4 is a delay contact module, 5 is a delay adjustment module, 6 is a cover plate, 7 is a mounting screw, 8 is a pointer, 9 is a locking piece, 10 is a conventional contact insulating plate, 11 is a first insulating sleeve, 12 is a conventional moving contact piece, 13 is a conventional static contact piece, 14 is a delay box, 15 is a shift block, 16 is a cam block, 17 is a guide rod, 18 is a compression spring, 19 is a shift block column, 20 is a guide rod groove, 21 is a short shaft, 22 is a second insulating sleeve, 23 is a buffer column, 24 is a delay contact insulating plate, 25 is a delayed moving contact piece, 26 is a delayed static contact piece, 27 is a coil spring box, 28 is a box cover, 29 is a coil spring, 30 is a threaded column, and 31 is a limit screw. DETAILED DESCRIPTION

[0025] As shown in the accompanying drawings, this embodiment provides a time-delay auxiliary switch with an 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 center hole of the conventional contact insulating plate 10. The outer side of the rotating shaft 2 is provided with a first insulating sleeve 11, and the outer side of the first insulating sleeve 11 is provided with a conventional moving contact piece 12. Conventional static contacts 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 pass through the mounting screw 7 at the same time, and are pressed together by cooperating with the mounting screw 7 and tightening the nut on the side of the delay adjustment module 5.

[0027] The delay trigger module 3 includes a delay box 14 , a shift 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 side surfaces of the delay box 14 are respectively in close contact with the conventional contact module 1 and the delayed 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 sleeved on the boss on the end face of the rotating shaft 2 and fixed with a screw. The end face of the cam block 16 is provided with a shift block column 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 sleeved in the circular hole of the guide rod 17. A guide rod groove 20 is provided on the delay box 14, and the compression spring 18 and the guide rod 17 assembly are installed in the guide rod groove 20. The guide rod 17 can compress the compression spring 18 to move in the guide rod groove 20. A protrusion is provided on the end of the guide rod 17, and the shift 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 shift block 15, and 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, and 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 shift block 15 is sleeved on the boss of the short shaft 21 and fixed with screws. A protrusion corresponding to the protrusion of the guide rod 17 is provided on the end of the shift block 15, and the guide rod 17 can clamp the shift block 15 when the compression spring 18 is in the initial state.

[0030] When the cam block 16 rotates, the shift block column 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 column fixing groove, in which the buffer column 23 is interference-set and partially exposed to the central hole of the delay box 14 . The buffer column 23 can buffer the collision with the side edge of the shift block 15 .

[0032] The delayed contact module 4 includes multiple identical delayed contact substrate units, each of which includes a delayed contact insulating plate 24, the mounting screw 7 passes through the delayed contact insulating plate 24, the short shaft 21 passes through the center hole of the delayed contact insulating plate 24, and the outer sleeve of the second insulating sleeve 22 is provided with a delayed moving contact piece 25. The rotation of the short shaft 21 can drive the delayed moving contact piece 25 to rotate, and a delayed static contact piece 26 is provided on one side of the delayed contact insulating plate 24.

[0033] The delay adjustment module 5 includes a coil spring box 27, a box cover 28 and a coil spring 29. One end face of the coil spring box 27 contacts 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 circle end line of the coil spring 29 is matched with the cylindrical groove of the short shaft 21. The rotation of the short shaft 21 can drive the coil spring 29 to store energy. The outer circle of the box cover 28 is sleeved on the coil spring box 27. The box cover 28 is provided with a positioning groove. The outer circle end line of the coil spring 29 is matched with the positioning groove of the box cover 28. The box cover 28 can rotate relative to the coil spring box 27.

[0034] A screw hole is provided on the side of the coil spring box 27, and a limit screw 31 is screwed into the coil spring box 27 through the threaded hole. The limit 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 realize 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 surface of the cover plate 6 is in contact with the coil spring box 27 , and the coil spring box 27 and the cover plate 6 are connected by screws.

[0036] A threaded column 30 is provided on one side of the box cover 28 and passes through the center hole of the cover plate 6. The pointer 8 is provided on the outer sleeve of the threaded column 30. A groove is provided on the outer circle of the threaded column 30, and a boss is provided on the inner hole of the pointer 8. The boss of the pointer 8 is matched with the groove of the threaded column 30 so that the pointer 8 can rotate simultaneously with the box cover 28.

[0037] A locking member 9 is provided in the middle of the delay adjustment module 5. The locking member 9 is a locking nut that cooperates with the threaded column 30. By tightening the locking nut, the box cover 28 and the cover plate 6 can be locked to each other, so that the box cover 28 can no longer rotate.

[0038] The specific working principle is as follows: First, rotate the box cover 28, which drives the coil spring 29 to rotate and store energy. The rotation angle of the box cover 28 determines the amount of energy stored in the coil spring 29. After rotating to a suitable angle, lock the locking piece 9. At this time, the box cover 28 is fixed, the coil spring 29 has completed energy storage, and the pointer 8 can indicate the rotation angle of the box cover 28.

[0039] When the action starts, the rotation of the rotating shaft 2 drives the conventional moving contact piece 12 and the cam block 16 of the conventional contact module 1 to rotate. When the conventional moving contact piece 12 rotates to a certain angle, the conventional moving contact piece 12 contacts the conventional static contact piece 13, and the ordinary contact is connected. At this time, the shift block column 19 of the cam block 16 contacts the guide rod 17, and the guide rod 17 compresses the compression spring 18 to move. When it moves to a certain position, the guide rod 17 disengages from the shift block 15, and the shift block 15 is driven to rotate under the action of the coil spring 29. When it rotates to a certain angle, the shift block 15 contacts the buffer column 23 and is fixed under the action of the coil spring 29. Because the shift block 15 rotates synchronously with the short shaft 21, the short shaft 21 drives the delayed moving contact piece 25 of the delayed contact module 4 to contact the delayed static contact piece 26, so that the delayed contact is delayed relative to the ordinary contact. By rotating the rotation angle of the box cover 28, the torsional force of the coil spring 29 is adjusted, thereby realizing the delay time of the delayed 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, and the shift block column 19 of the cam block 16 will contact the shift block 15, driving the shift block 15 to rotate. When it rotates to a certain angle, the shift block 15 contacts the guide rod 17. Continuing to rotate the guide rod 17 will compress the compression spring 18 to move, and the shift block 15 will pass over the guide rod 17. At the same time, the shift block 15 will drive the short shaft 21 to rotate synchronously, and the short shaft 21 will drive the rotating coil spring 29 to reach the initial energy storage state.

[0041] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the scope of protection of the present invention.

Claims

1. A time-delay auxiliary switch with an 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 comprises a conventional contact insulating plate (10), the rotating shaft (2) passes through a central hole of the conventional contact insulating plate (10), the rotating shaft (2) is provided with a first insulating sleeve (11) on the outside, the first insulating sleeve (11) is provided with a conventional moving contact piece (12) on the outside, and conventional static contact pieces (13) are provided on both sides of the conventional contact insulating plate (10), characterized in that: The conventional contact module (1) is provided with a time delay trigger module (3) on the side, the time delay trigger module (3) is provided with a time delay contact module (4) on the side, the time delay contact module (4) is provided with a time delay adjustment module (5) on the side, and the time delay adjustment module (5) is provided with a cover plate (6) on the side. The conventional contact module (1), the time delay trigger module (3), the time delay contact module (4) and the time delay adjustment module (5) are simultaneously passed through the mounting screw (7) and are pressed together by cooperating with the mounting screw (7) and tightening the nut on the side of the time delay adjustment module (5). The cover plate (6) and the time delay adjustment module (5) are detachable. The end face of the rotating shaft (2) is connected to the delay trigger module (3); the middle part of the delay adjustment module (5) can rotate and pass through the central hole of the cover plate (6); the delay adjustment module (5) is provided with a pointer (8) on the outer part of the cover plate (6); the pointer (8) can rotate simultaneously with the rotatable part of the middle part of the delay adjustment module (5); a locking member (9) is provided in the middle part of the delay adjustment module (5); the rotatable part of the middle part of the delay adjustment module (5) and the cover plate (6) can be locked with each other through the locking member (9), 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 shift 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 sleeved on the boss on the end face of the rotating shaft (2) and fixed with a screw. The end face of the cam block (16) is provided with a shift block column (19). One end face of the guide rod (17) is provided with a circular hole. The compression spring (18) is sleeved in the circular hole of the guide rod (17). The delay box (14) is provided with a guide rod groove (20). The compression spring (18) is in close contact with the guide rod ( 17) component device is 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 shift 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 shift block (15), the outside of the short shaft (21) is covered with a second insulating sleeve (22), one end face of the short shaft (21) is provided with a cylinder and a boss, the end face of the boss is provided with a threaded hole, the other end face of the short shaft (21) is provided with a cylinder and a groove is provided in the center of the end face, the center hole of the shift block (15) is sleeved on the boss of the short shaft (21) and fixed with screws, the end of the shift block (15) is provided with a protrusion corresponding to the protrusion of the guide rod (17), and the shift block column (19) can collide with the outer edge of the shift block (15).

3. The time-delay auxiliary switch with adjustable function according to claim 2, characterized in that: The delay box (14) is also provided with a buffer column fixing groove, and the buffer column (23) is interference-fittedly arranged in the buffer column fixing groove and partially exposed in the central hole of the delay box (14). The buffer column (23) can buffer collision with the shift block (15).

4. The time-delay auxiliary switch with adjustable function according to claim 2, characterized in that: The delay contact module (4) includes a plurality of identical delay contact substrate units, each of which 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), the outer side of the second insulating sleeve (22) is provided with a delay moving contact piece (25), and one side of the delay contact insulating plate (24) is provided with a delay static contact piece (26).

5. The time-delay auxiliary switch with adjustable function according to claim 2, characterized in that: The delay adjustment module (5) includes a coil spring box (27), a box cover (28) and a coil spring (29), one end face of the coil spring box (27) contacts 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 matched with the cylindrical groove of the short shaft (21), the outer circle of the box cover (28) is sleeved on the coil spring box (27), the box cover (28) is provided with a positioning groove, the outer end line of the coil spring (29) is matched with the positioning groove of the box cover (28), the box cover (28) can rotate relative to the coil spring box (27), a threaded column (30) is provided on one side of the box cover (28) and passes through the center hole of the cover plate (6), the end face of the cover plate (6) contacts the coil spring box (27), and the coil spring box (27) is connected to the cover plate (6) by screws.

6. The time-delay auxiliary switch with adjustable function according to claim 5, characterized in that: The side of the coil spring box (27) is provided with a screw hole, and a limit screw (31) is screwed into the coil spring box (27) through the threaded hole, and the limit screw (31) corresponds to the protruding portion of the edge of the box cover (28).

7. The 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 placed outside the threaded column (30), and the boss of the pointer (8) is matched with the groove of the threaded column (30).

8. The time-delay auxiliary switch with adjustable function according to claim 5, characterized in that: The locking member (9) is a locking nut that matches the threaded column (30). By tightening the locking nut, the box cover (28) and the cover plate (6) can be locked to each other, so that the box cover (28) can no longer rotate.

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