Rotary self-locking switch
By designing a rotary self-locking switch, the rotation of the knob and the cooperation of the spring locking member, the problem of existing pressing self-locking switches being susceptible to external impact and accidentally touched by external forces is solved, achieving higher safety and reliability.
Patent Information
- Application Number
- CN202323536309.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The existing pressurized self-locking switches are easily activated due to external impact or accidental contact, which increases the possibility of safety accidents.
A rotary self-locking switch is designed to start and close by rotating the knob. The main spring, locking part, lock hole and self-locking spring are used to ensure that the self-locking state will only be entered under correct operation, avoiding the External impact was started by mistake.
It effectively avoids the self-locking switch misstarting caused by external impact or accidental contact, and improves safety and reliability.
Smart Images
Figure CN222146064U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of self-locking switches, and in particular relates to a rotary self-locking switch. Background Art
[0002] Self-locking switch is a common type of switch device. Its characteristic is that after the self-locking switch is activated, the switch is connected and remains in the self-locking state. When the self-locking switch is pressed again, the switch releases the self-locking state and rebounds to the initial state. It is currently widely used in the fields of electrical automation or new energy technology.
[0003] Most of the existing self-locking switches are push-type self-locking switches, that is, a lock element and a lock slot are provided inside the switch. When the button is pressed, the lock element cooperates with the lock slot and the switch enters a self-locking state. When the button is pressed again, the lock element disengages from the lock slot and the switch releases the self-locking state.
[0004] Since the activation of the push-type self-locking switch is mainly affected by external pressure, it is easy to activate directly when the self-locking switch is hit by external force or touched by mistake, which may cause the possibility of safety accidents. Utility Model Content
[0005] In view of the problem that the existing push-type self-locking switch is easily activated by external force collision, thereby causing safety accidents, the following utility model is now proposed:
[0006] A rotary self-locking switch comprises a base, a mounting seat and a knob, wherein a static contact piece and a supporting spring are arranged on the base, a movable column is arranged at the end of the supporting spring, a movable contact piece located above the static contact piece is elastically connected in the movable column, the mounting seat is arranged above the base, the knob is movably arranged on the mounting seat, a main spring with two ends respectively connected to the knob and the mounting seat is arranged between the knob and the mounting seat, after the knob is rotated, the end of the main spring rotates and deforms, a rotating seat is arranged on the inner side of the mounting seat, the rotating seat is pressed against the top of the movable column, and the knob is fixed The lock plate is fixedly installed on the top of the rotating seat, and at least one protruding lock plate is provided on the mounting seat, and a first channel and a second channel extending in the same oblique direction are provided on the inner side wall of the lock plate, and the second channel is located below the first channel and the two ends are connected, and a lock hole penetrating the lock plate is provided at the lower end of the first channel, and a lock groove is also provided on the rotating seat, and an elastically contracted self-locking spring is provided in the lock groove, and a lock piece is pressed against the end of the self-locking spring, and a lock head inserted into the first channel is provided at the end of the lock piece, and the lock head matches the shape of the lock hole.
[0007] Furthermore, a partition is provided below the lock hole to separate the first channel from the second channel, and a reset slope is provided on the partition to extend obliquely toward the bottom of the first channel. A positioning plate is provided at the other end of the lock element, and both sides of the positioning plate are in contact with the inner wall of the lock groove to prevent the lock element from rotating. The bottom of the lock head is provided with a slope structure matching the reset slope.
[0008] Furthermore, a protruding column for the self-locking spring to be sleeved is provided in the lock groove, and a through hole for the protruding column to be inserted is provided at the end of the lock element.
[0009] Furthermore, a connecting column extending toward the rotating seat is provided in the knob, a threaded hole is provided in the connecting column, and a threaded connector threadedly connected to the connecting column is inserted under the rotating seat to fix the knob and the rotating seat.
[0010] Furthermore, the connecting column is provided with limit plates protruding outward on both sides, and the mounting seat is provided with limit grooves that engage with the outer sides of the limit plates to limit the rotation angle range of the knob; a plug-in plate is provided between the limit plates, and the rotating seat is provided with a matching groove for inserting the plug-in plate.
[0011] Furthermore, a bottom pressure plate which is in close contact with the movable column is provided at the bottom of the rotating seat, and the threaded connector is threadedly connected to the connecting column from below the bottom pressure plate.
[0012] Furthermore, two locking plates and two locking slots are provided, and both are symmetrical with respect to the rotating seat. Each locking slot is provided with an elastically contractible self-locking spring and a locking element pressed against the end of the self-locking spring.
[0013] Furthermore, a contact piece slot is provided on the movable column, the movable contact piece is inserted into the contact piece slot, and a contact piece spring is provided between the movable contact piece and the contact piece slot to press against both.
[0014] Furthermore, both ends of the main spring are provided with plug connectors extending inwards, and the knob and the mounting seat are provided with plug slots for inserting the plug connectors.
[0015] Furthermore, a plurality of indicating arrows are provided on the top of the knob to facilitate the operator to understand the activation status of the self-locking switch.
[0016] The beneficial effect of the utility model is that it is started by rotating the knob, thus avoiding startup due to external impact or accidental touch by an operator, and is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the rotary self-locking switch in the utility model;
[0018] Figure 2 The internal structure of the rotary self-locking switch in the utility model is shown in FIG. Figure 1 ;
[0019] Figure 3 The internal structure of the rotary self-locking switch in the utility model is shown in FIG. Figure 2 ;
[0020] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;
[0021] Figure 5 It is a three-dimensional structural schematic diagram of the base and related components in the utility model;
[0022] Figure 6 It is a three-dimensional structural schematic diagram of the mounting seat in the utility model;
[0023] Figure 7 For the utility model Figure 6 The enlarged structural diagram at B in the middle;
[0024] Figure 8 This is a bottom-up three-dimensional structural diagram of the knob in the utility model;
[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the lock in the utility model.
[0026] The corresponding relationship between the illustrations and component names in the figure is as follows:
[0027] 1. Base; 2. Mounting seat; 3. Rotating seat; 4. Locking piece; 5. Knob; 6. Lower sleeve; 7. Upper sleeve shell; 11. Movable column; 12. Support spring; 13. Static contact piece; 14. Moving contact piece; 15. Contact piece spring; 16. Contact piece slot; 21. Lock plate; 22. First channel; 23. Second channel; 24. Lock hole; 25. Reset slope; 26. Reset channel; 27. Limiting slot; 31. Locking slot; 32. Matching slot; 33. Threaded connector; 34. Bottom pressure plate; 35. Cover plate; 41. Self-locking spring; 42. Lock head; 43. Positioning plate; 44. Protruding column; 51. Main spring; 52. Connecting column; 53. Limiting plate; 54. Plug plate; 55. Plug connector; 56. Plug slot; 57. Indicator arrow. DETAILED DESCRIPTION
[0028] The technical solution of the utility model will be clearly and completely described below in conjunction with embodiments.
[0029] Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.
[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0031] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0032] In addition to being used to indicate a position or location relationship, some of the above terms may also be used to indicate other meanings. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.
[0033] like Figure 1-Figure 9 As shown, a rotary self-locking switch comprises a base 1, a mounting base 2, a rotating base 3, and a knob 5. A stationary contact piece 13 and a support spring 12 are provided on the base 1, a metal pin is integrally connected to the lower side of the stationary contact piece 13, a movable column 11 is pressed and installed at the end of the support spring 12, a moving contact piece 14 is elastically connected inside the moving column 11, and the moving contact piece 14 is located directly above the stationary contact piece 13. When the moving column 11 moves downward, the moving contact piece 14 inside it is driven to contact the stationary contact piece 13 to achieve electrical connection. The mounting seat 2 is arranged above the base 1, and the bottom of the mounting seat 2 is provided with a lower sleeve 6 fixedly sleeved on the outside of the base 1, and the top of the mounting seat 2 is fixedly installed with an upper sleeve shell 7, and a rotating seat 3 located at the center of the mounting seat 2 is movably installed inside the upper sleeve shell 7, and the rotating seat 3 is pressed and contacted with the movable column 11, and the top of the knob 5 is provided with a plurality of indicating arrows 57, and it is fixedly installed on the top of the rotating seat 3, and a main spring 51 is provided between the mounting seat 2 and the knob 5, and the two ends are respectively fixedly connected to the two. After turning the knob 5, the rotating seat 3 rotates accordingly, and after releasing the knob 5, the main spring 51 recovers its deformation, and the rotating seat 3 rotates in the opposite direction.
[0034] Furthermore, two protruding lock plates 21 are provided on the mounting seat 2, and two lock grooves 31 are provided on the rotating seat 3. The lock plates 21 and the lock grooves 31 are both symmetrical with respect to the rotating seat 3. Each lock plate 21 is provided with a first channel 22, a second channel 23, and a lock hole 24. The first channel 22 and the second channel 23 extend obliquely downward in the same direction along the inner side wall of the lock plate 21. The second channel 23 is located below the first channel 22, and the two are vertically connected at both ends. A lock hole 24 is also provided at the lower end of the first channel 22, which is connected thereto and penetrates the lock plate 21. An elastically contracted self-locking spring 41 is provided in the lock groove 31, and a lock member 4 is pressed against the end of the self-locking spring 41. The lock member 4 is provided with a lock head 42 inserted into the first channel 22, and the shape of the lock head 42 matches the lock hole 24.
[0035] After the operator turns the knob 5, the knob 5, the rotating seat 3 and the lock 4 rotate together. During the rotation of the knob 5, the main spring 51 contracts and undergoes rotational deformation. The main spring 51 and the lock 4 move obliquely downward along the first channel 22 toward the lock hole 24. The rotating seat 3 moves downward together with the lock 4, thereby driving the movable column 11 to move downward together. When the lock 4 moves to the lock hole 24, it is driven by the elastic force of the self-locking spring 41 to pop out and be fixedly inserted into the lock hole 24, completing the fixed self-locking of the position of the rotating seat 3. After that, the knob 5 cannot be rotated, and the moving contact piece 14 is in contact and communication with the static contact piece 13.
[0036] After the operator presses the knob 5, the lock element 4 will be compressed and retracted toward the lock groove 31 and disengage from the lock hole 24 to enter the second channel 23. The rotating seat 3 continues to move downward with the lock element 4, and the support spring 12 further contracts. After the lock element 4 enters the second channel 23, the main spring 51 recovers its deformation, and the knob 5 is driven by the main spring 51 to rotate in the opposite direction and move upward. The lock element 4 moves along the second channel 23 in an oblique upward direction with the knob 5. After the lock element 4 reaches the end of the second channel 23, it returns to the first channel 22 through the reset channel 26 connecting the second channel 23 with the first channel 22. The movable column 11 is driven to reset by the support spring 12, the moving contact piece 14 and the static contact piece 13 are separated, and the knob 5 completes the reset.
[0037] After the knob 5 is reset, when it is directly impacted by external force, the lock element 4 will enter the reset channel. During this process, the distance moved downward by the movable column 11 is not enough for the movable contact piece 14 to contact the static contact piece 13, thereby avoiding the false start of the self-locking switch. As the external force disappears, the knob 5 will rebound and reset.
[0038] Furthermore, a partition is provided below the lock hole 24 to separate the first channel 22 and the second channel 23, and a reset slope 25 is provided on the partition and extends obliquely toward the bottom of the first channel 22; a protruding column 44 for the self-locking spring 41 to be sleeved is also provided in the lock groove 31, and a slope structure matching the reset slope 25 is provided at the bottom of the lock head 42 at the end of the lock element 4, and a through hole and a positioning plate 43 are also provided at the other end of the lock element 4, and the protruding column 44 and the self-locking spring 41 are inserted into the through hole, and both sides of the positioning plate 43 are in contact with the inner wall of the lock groove 31, that is, the lock element 4 cannot rotate in the lock groove 31, and in order to prevent the lock element from detaching from the lock groove 31, a cover plate 35 is also fixed at the opening of the lock groove 31.
[0039] When the lock element 4 is inserted into the lock hole 24, the inclined surface structure on the lock head 42 is located directly below the reset inclined surface 25. When the operator presses with less force, the lock head 42 cannot pass over the reset inclined surface 25, thereby preventing the self-locking switch from being closed due to accidental touch. After the knob 5 is pressed, the lock head 42 moves downward along the reset inclined surface 25 and shrinks toward the lock head 42. After the lock head 42 passes over the reset inclined surface 25 and enters the second channel 23, there is no inclined surface structure on the top of the lock head 42, and it is difficult for the lock head 42 to pass over the inclined surface structure and enter the first channel 22, that is, the lock head 42 can only move in an oblique upward direction along the second channel 23, thereby improving the stability of the knob 5 during the reset process.
[0040] A bottom pressure plate 34 is provided at the bottom of the rotating seat 3, which is in contact with the movable column 11. A threaded connector 33 is provided below the bottom pressure plate 34 and extends upward from the center of the rotating seat 3. A connecting column 52 is provided in the knob 5, which extends toward the rotating seat 3. A threaded hole is provided in the connecting column 52 for threaded insertion of the threaded connector 33, so as to fix the knob 5 and the rotating seat 3. Further, a limit plate 53 protruding outward is provided on both sides of the connecting column 52, and a plug-in plate 54 is provided between the limit plates 53 on both sides. A limit groove 27 is provided on the mounting seat 2, which is located between the two locking plates 21 and is engaged with the outer side of the limit plate 53, so as to limit the rotation angle of the knob 5 within a certain range. Specifically, in this embodiment, the rotation angle of the knob 5 is 0-60°, and a matching groove 32 is provided on the rotating seat 3 for inserting the plug-in plate 54, so as to improve the stability of the connection between the rotating seat 3 and the knob 5.
[0041] In this embodiment, the movable column 11 is provided with a contact slot 16, the movable contact 14 is inserted transversely into the contact slot 16, and a contact spring 15 is provided between the movable contact 14 and the contact slot 16 to press against the two. Both ends of the main spring 51 are provided with plug connectors 55 extending inward, and the knob 5 and the mounting seat 2 are provided with plug connectors 56 for inserting the plug connectors 55, so as to fix the main spring 51 with the knob 5 and the mounting seat 2.
[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A rotary self-locking switch, comprising a base (1), a mounting seat (2), and a knob (5), wherein the base (1) is provided with a stationary contact piece (13) and a support spring (12), a movable column (11) is installed at the end of the support spring (12), and a movable contact piece (14) located above the stationary contact piece (13) is elastically connected in the movable column (11), the mounting seat (2) is arranged above the base (1), the knob (5) is movably arranged on the mounting seat (2), and a main spring (51) is arranged between the knob (5) and the mounting seat (2) at both ends thereof, and the main spring (51) is respectively connected to the two ends, and when the knob (5) is rotated, the end of the main spring (51) rotates and deforms, characterized in that: The invention also comprises a rotating seat (3) movably arranged inside the mounting seat (2), the rotating seat (3) being pressed against the top of the movable column (11), the knob (5) being fixedly mounted on the top of the rotating seat (3), at least one protruding locking plate (21) being arranged on the mounting seat (2), the inner side wall of the locking plate (21) being provided with a first channel (22) and a second channel (23) extending in the same oblique direction, the second channel (23) being located below the first channel (22) and the two channels are arranged in a manner similar to each other. The two ends are connected, a lock hole (24) penetrating the lock plate (21) is provided at the lower end of the first channel (22), a lock groove (31) is provided on the rotating seat (3), an elastically contractible self-locking spring (41) is provided in the lock groove (31), a lock member (4) is pressed against the end of the self-locking spring (41), a lock head (42) inserted into the first channel (22) is provided at the end of the lock member (4), and the lock head (42) matches the shape of the lock hole (24).
2. The rotary self-locking switch according to claim 1, characterized in that: A partition is provided below the lock hole (24) to separate the first channel (22) and the second channel (23), and a reset slope (25) is provided on the partition and extends obliquely toward the bottom of the first channel (22). A positioning plate (43) is provided at the other end of the lock element (4), and both sides of the positioning plate (43) are in contact with the inner side wall of the lock groove (31) to prevent the lock element (4) from rotating. The bottom of the lock head (42) is provided with a slope structure matching the reset slope (25).
3. The rotary self-locking switch according to claim 2, characterized in that: A protruding column (44) for the self-locking spring (41) to be sleeved is provided in the locking groove (31), and a through hole for the protruding column (44) to be inserted is provided at the end of the locking element (4).
4. The rotary self-locking switch according to claim 1, characterized in that: The knob (5) is provided with a connecting column (52) extending toward the rotating seat (3), and the connecting column (52) is provided with a threaded hole. A threaded connector (33) threadedly connected to the connecting column (52) is inserted below the rotating seat (3) to fix the knob (5) and the rotating seat (3).
5. The rotary self-locking switch according to claim 4, characterized in that: Limiting plates (53) protruding outward are provided on both sides of the connecting column (52); a limiting groove (27) engaged with the outer side of the limiting plate (53) is provided on the mounting seat (2) to limit the rotation angle range of the knob (5); a plug-in plate (54) is provided between the limiting plates (53); and a matching groove (32) for inserting the plug-in plate (54) is provided on the rotating seat (3).
6. The rotary self-locking switch according to claim 5, characterized in that: The bottom of the rotating seat (3) is provided with a bottom pressure plate (34) which is in close contact with the movable column (11), and the threaded connection piece (33) is threadedly connected to the connecting column (52) from below the bottom pressure plate (34).
7. The rotary self-locking switch according to claim 1, characterized in that: The locking plates (21) and locking grooves (31) are each provided with two and are symmetrical with respect to the rotating seat (3). Each locking groove (31) is provided with an elastically contracted self-locking spring (41) and a locking element (4) pressed against the end of the self-locking spring (41).
8. The rotary self-locking switch according to claim 1, characterized in that: The movable column (11) is provided with a contact sheet slot (16), the movable contact sheet (14) is inserted into the contact sheet slot (16), and a contact sheet spring (15) is provided between the movable contact sheet (14) and the contact sheet slot (16) to press against both.
9. The rotary self-locking switch according to claim 1, characterized in that: Both ends of the main spring (51) are provided with plug connectors (55) extending inwards, and the knob (5) and the mounting seat (2) are provided with plug slots (56) for inserting the plug connectors (55).
10. The rotary self-locking switch according to claim 1, characterized in that: A plurality of indicating arrows (57) are also provided on the top of the knob (5).