Rotary switch
By adopting the structural design of the contact device and the connecting plate in the rotary switch, the damping feeling is provided, which solves the problem of low adjustment accuracy of the existing rotary switch and achieves more accurate signal adjustment.
Patent Information
- Application Number
- CN202421357412.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The adjustment accuracy of existing rotary switches is low, and the moving contacts are easy to slide between the two static contacts, resulting in inaccurate signal adjustment.
A rotary switch is designed, adopting a structural design of a contact device and a connecting plate. Through the cooperation of the compression spring and the convex hull, a damping feeling is provided, making the rotation of the rotary shaft more accurate.
Improve the adjustment accuracy of the rotary switch, enhance the connectivity of the signal, and ensure accurate adjustment of the signal.
Smart Images
Figure CN223023112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switches, in particular to a rotary switch. Background Technique
[0002] A rotary switch is a basic electromechanical component used to select and switch the signal circuit of an electronic device. The rotary switch realizes the transposition operation by manual rotation.
[0003] In the current rotary switch, when the rotating shaft drives the moving contact to rotate and switch with the static contact, it can only rely on the sense of touch simply, and there is often a virtual position, that is, the moving contact slides between the two static contacts, which makes the adjustment accuracy of the rotary switch low and the adjustment signal not in place. Summary of the Invention
[0004] The purpose of the utility model is to provide a rotary switch to solve the problem that in the current rotary switch, when the rotating shaft drives the moving contact to rotate and switch with the static contact, it can only rely on the sense of touch simply, and there is often a virtual position, that is, the moving contact slides between the two static contacts, which makes the adjustment accuracy of the rotary switch low and the adjustment signal not in place.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a rotary switch, including a cover plate, through holes are opened on the top surface of the cover plate, contact devices are arranged on both sides of the through holes on the bottom surface of the cover plate, a rotating shaft is rotatably connected in the through hole, and the lower part of the rotating shaft is in contact with the contact device. A number of gear position marks are fixedly connected around the through hole on the top surface of the cover plate. A base is clamped below the cover plate, a connection cavity is opened in the base, the contact device includes a fixed box, a contact head and a compression spring. The fixed box is fixedly installed on the bottom of the cover plate. An activity cavity is opened in the fixed box. A contact head is movably connected at the orifice of the activity cavity. A compression spring is arranged in the activity cavity. One end of the compression spring is fixedly connected to the rear end face of the contact head, and the other end of the compression spring is fixedly connected to the inner wall surface of the activity cavity. The rotating shaft includes a handle and a connection disk. The bottom of the handle is fixedly connected with the connection disk, and the outer wall surface of the connection disk is in contact with the surface of the contact head. A number of convex bumps are fixedly connected to the surface of the connection disk evenly.
[0006] Preferably, a number of anti-slip edges are fixedly connected to the surface of the handle evenly.
[0007] Preferably, the handle and the connection disk are integrally designed.
[0008] Preferably, the number of the convex bumps is equal to that of the gear position marks, and the positions of the convex bumps and the gear position marks are designed relatively.
[0009] Advantageous Effects
[0010] Compared with the existing technologies, the beneficial effects of the present utility model are as follows:
[0011] Combined with the structural design of the contact device and the connection plate in the present utility model, when the rotating shaft drives the moving contact to rotate and switch with the static contact, a certain damping feeling is generated, thereby improving the adjustment accuracy of the rotary switch and enhancing the connectivity of the adjustment signal. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 is a schematic diagram of the internal structure of the present utility model;
[0014] Figure 3 is a schematic diagram of the top view structure of the present utility model;
[0015] Figure 4 is a schematic diagram of the rotating shaft structure of the present utility model;
[0016] Figure 5 is a schematic diagram of the enlarged structure at A of the present utility model.
[0017] 1. Cover plate; 2. Base; 3. Rotating shaft; 4. Contact device; 5. Gear position identifier; 11. Through hole; 21. Connection cavity; 31. Handle; 32. Connection plate; 33. Convex bump; 34. Anti-slip rib; 41. Fixed box; 42. Movable cavity;
[0018] 43. Contact head; 44. Compression spring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0021] As Figures 1-5 This is a schematic structural diagram of a rotary switch according to a preferred embodiment of the present utility model. In this embodiment, a rotary switch includes a cover plate 1. A through hole 11 is formed on the top surface of the cover plate 1. Contact devices 4 are arranged on both sides of the through hole 11 on the bottom surface of the cover plate 1. A rotating shaft 3 is rotatably connected in the through hole 11, and the bottom of the rotating shaft 3 is in contact with the contact device 4. A plurality of gear position identifiers 5 are fixedly connected around the through hole 11 on the top surface of the cover plate 1. Through the gear position identifiers 5, the working position where the rotating shaft 3 rotates can be quickly identified. A base 2 is clamped below the cover plate 1. A connection cavity 21 is formed in the base 2. A moving contact and a static contact are assembled in the connection cavity 21, and the top of the moving contact is connected to the bottom of the rotating shaft 3. By rotating the rotating shaft 3, the moving contact is driven to contact the static contact.
[0022] In this embodiment, the contact device 4 includes a fixed box 41, a contact head 43, and a compression spring 44. The fixed box 41 is fixedly installed on the bottom of the cover plate 1. An activity cavity 42 is formed in the fixed box 41. The contact head 43 is movably connected at the orifice of the activity cavity 42. A compression spring 44 is arranged in the activity cavity 42. One end of the compression spring 44 is fixedly connected to the rear end face of the contact head 43, and the other end of the compression spring 44 is fixedly connected to the inner wall surface of the activity cavity 42 so that the contact head 43 can move in the activity cavity 42.
[0023] In this embodiment, the rotating shaft 3 includes a handle 31 and a connection disk 32. The bottom of the handle 31 is fixedly connected to the connection disk 32, and the outer wall surface of the connection disk 32 is in contact with the surface of the contact head 43. A plurality of convex protrusions 33 are fixedly connected to the surface of the connection disk 32 on average. Through the contact and cooperation between the convex protrusions 33 and the contact head 43, when the handle 31 rotates, the connection disk 32 is driven to rotate. During the rotation of the connection disk 32, due to the protrusion of the convex protrusions 33, the contact head 43 moves in the activity cavity 42. When the convex protrusions 33 contact the contact head 43 and the contact head 43 moves in the activity cavity 42, a damping feeling will occur during the rotation of the connection disk 32, which can be transmitted to the operator, enabling the operator to clearly know the position where the handle 31 rotates, thereby improving the adjustment accuracy of the rotary switch and enhancing the connectivity of the adjustment signal.
[0024] In this embodiment, a plurality of anti-slip edges 34 are fixedly connected to the surface of the handle 31 on average, increasing the friction coefficient when the operator operates the handle 31 and facilitating better operation of the handle 31.
[0025] In this embodiment, the handle 31 and the connection disk 32 are designed as an integral structure, increasing the connection strength therebetween.
[0026] In this embodiment, the number of the convex hulls 33 is equal to the number of the gear position identifiers 5, and the positions of the convex hulls 33 and the gear position identifiers 5 are designed relatively. Through the cooperation between the convex hulls 33 and the gear position identifiers 5 in its structural design, an operator can clearly know the positional relationship of the rotary switch during adjustment.
[0027] The above content further elaborates on the present utility model in conjunction with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present utility model.
Claims
1. A rotary switch, comprising a cover plate (1), characterized in that: The top surface of the cover plate (1) is provided with a through hole (11), and the bottom surface of the cover plate (1) is provided with contact devices (4) on both sides of the through hole (11). A rotating shaft (3) is rotatably connected in the through hole (11), and the bottom of the rotating shaft (3) is in contact with the contact device (4). The top surface of the cover plate (1) is fixedly connected with a plurality of gear position markings (5) around the through hole (11). A base (2) is clamped at the bottom of the cover plate (1), and a connecting cavity (21) is provided in the base (2). The contact device (4) comprises a fixing box (41), a contact head (43) and a compression spring (44). The fixing box (41) is fixedly installed at the bottom of the cover plate (1). A movable cavity (42) is provided in the fixed box (41), and a contact head (43) is movably connected to the cavity opening of the movable cavity (42). A compression spring (44) is arranged in the movable cavity (42), and one end of the compression spring (44) is fixedly connected to the rear end surface of the contact head (43), and the other end of the compression spring (44) is fixedly connected to the inner wall surface of the movable cavity (42). The rotating shaft (3) comprises a handle (31) and a connecting disk (32), and the bottom of the handle (31) is fixedly connected to the connecting disk (32), and the outer wall surface of the connecting disk (32) is in contact with the surface of the contact head (43), and the surface of the connecting disk (32) is fixedly connected to a plurality of convex bumps (33).
2. A rotary switch according to claim 1, characterized in that: The surface of the handle (31) is fixedly connected with a plurality of anti-slip edges (34).
3. A rotary switch according to claim 2, characterized in that: The handle (31) and the connecting plate (32) are designed as an integral structure.
4. A rotary switch according to claim 1, characterized in that: The number of the convex hulls (33) and the gear position marks (5) is equal, and the positions of the convex hulls (33) and the gear position marks (5) are designed to be relative.