A changeover switch

Abstract

The utility model provides a change -over switch relates to switch technical field, the utility model discloses handle, pivot is located on handle, inner plate is connected with pivot rotation, pivot passes through inner plate, wherein, be equipped with the locating plate on the inner plate, be equipped with the cavity in the inner plate of the inboard of locating plate, be equipped with the follow -up disc with pivot connection in the cavity, the side department of follow -up disc is equipped with first convex subassembly and second convex subassembly close to locating plate, the side department of locating plate is equipped with first concave subassembly, second concave subassembly with first convex subassembly, second convex subassembly cooperation, still be equipped with the elastic reset subassembly with pivot cooperation in the inner plate, the elastic force of elastic reset subassembly drives pivot and drives follow -up disc to the elastic movement of locating plate. The utility model presses only can realize rotation, and the self -lock is avoided after rotating in place, and the risk of accidental touch is avoided.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a changeover switch. Background Technology

[0002] A changeover switch is a low-voltage switch that switches between multiple circuits. Multiple moving contacts are welded onto a shaft. When the shaft rotates, the moving contacts sequentially connect or disconnect with the stationary contacts, switching the circuit and changing the circuit from one set of connections to another.

[0003] In existing technologies, the changeover switch allows the shaft to be rotated directly without pressing, which poses a risk of accidental activation. Furthermore, there is no self-locking mechanism after the shaft is rotated to the correct position, which poses a risk of the shaft shifting due to external forces. For example, in high-vibration environments such as ships and mining machines, equipment vibration can easily cause the shaft to rotate, ultimately leading to accidental switch activation. Moreover, the current changeover switch has poor operational feedback, and the existing structure lacks a stepped operational feel, which can easily result in the shaft not rotating to the correct position, leading to poor contact. Utility Model Content

[0004] The purpose of this invention is to develop a changeover switch that requires pressing to rotate and then locks itself once fully rotated, thus avoiding the risk of accidental activation.

[0005] This utility model is achieved through the following technical solution:

[0006] A changeover switch, comprising:

[0007] handle;

[0008] The pivot is located on the handle;

[0009] The inner plate is rotatably connected to the rotating shaft, which passes through the inner plate.

[0010] The inner plate is provided with a positioning plate, and the inner plate inside the positioning plate has a cavity. The cavity contains a follower disk connected to the rotating shaft. The side of the follower disk near the positioning plate is provided with a first convex component and a second convex component. The side of the positioning plate near the follower disk is provided with a first concave component and a second concave component that cooperate with the first convex component and the second convex component. The inner plate is also provided with an elastic reset component that cooperates with the rotating shaft. The elastic force of the elastic reset component drives the rotating shaft to move the follower disk elastically toward the positioning plate.

[0011] Optionally, the follower disk is circular, and the follower disk is coaxially connected to the rotating shaft.

[0012] Optionally, the first convex component includes a post disposed on the follower plate, and the first concave component includes a plurality of slots disposed on the positioning plate, wherein the number and position of the slots correspond to the gear positions of the selector switch.

[0013] Optionally, the insertion post is cylindrical with a spherical top, the depth of the slot corresponds to the height of the insertion post, the slot is a frustum-shaped cone with the large-diameter end facing outwards, and the inner end of the slot is spherical.

[0014] Optionally, the second convex component includes a universal ball bearing disposed on the follower plate, and the second concave component includes a plurality of positioning grooves disposed on the positioning plate. The positioning grooves are spherical crown-shaped and their size is adapted to the universal ball bearings. The number and position of the positioning grooves correspond to the gear positions of the selector switch.

[0015] Optionally, the height of the insert pin is lower than the height of the universal ball bearing on the follower plate.

[0016] Optionally, a silicone pad is provided on the side of the positioning plate near the follower disk.

[0017] Optionally, the elastic reset assembly includes an upper ring rotatably disposed on the side of the follower disk away from the positioning plate. The upper ring rotates coaxially with the rotating shaft. A lower ring is fixedly disposed inside the inner plate on the outer side of the upper ring. The rotating shaft passes through the inner sides of the upper and lower rings and exits the inner plate. A spring is disposed between the upper and lower rings.

[0018] Optionally, a plurality of telescopic rods are provided between the upper ring and the lower ring, which are arranged parallel to the axial direction of the rotating shaft, and the telescopic rods are located between the spring and the rotating shaft.

[0019] Optionally, an intermediate plate is connected to the outer side of the inner plate, and a panel is connected to the outer side of the intermediate plate. The rotating shaft passes through the intermediate plate and the panel, and a conversion mark is provided on the panel.

[0020] The beneficial effects of this utility model are:

[0021] This utility model allows the shaft to rotate only after the convex component and concave component are separated by pressing the handle. After rotation, the elastic force of the elastic reset component causes the convex component to enter the concave component, thereby locking the shaft and preventing accidental activation. During the switch rotation, the universal ball bearing, which is the convex component, engages with the positioning groove, which is the concave component, providing operation feedback to the operator. Through operation feedback, the operator can know whether the rotation is in place. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of the present utility model;

[0024] Figure 2 This is a diagram of the internal structure of the inner panel.

[0025] Reference numerals: 1. Inner plate; 2. Middle plate; 3. Front panel; 4. Rotating shaft; 5. Handle; 6. Cavity; 7. Positioning plate; 8. Silicone pad; 9. Slot; 10. Positioning groove; 11. Insert post; 12. Universal ball bearing; 13. Follower plate; 14. Upper ring; 15. Lower ring; 16. Spring; 17. Telescopic rod. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2 As shown, this utility model discloses a changeover switch, including a handle 5 and a panel 3, a middle plate 2, and an inner plate 1 connected in sequence. The inner plate 1 is fixed in the environment where the equipment or changeover switch is installed. The panel 3 is connected to the middle plate 2 and a changeover mark is provided on the panel 3. The middle plate 2 is fixed to the inner plate 1.

[0030] The handle 5 is provided with a rotating shaft 4, which passes through the panel 3, the middle plate 2 and the inner plate 1 in sequence. The rotating shaft 4 is rotatably connected to them and can slide axially.

[0031] The inner plate 1 is provided with a positioning plate 7 at the top. The rotating shaft 4 passes through the positioning plate 7 and is rotatably connected to the positioning plate 7. A cavity 6 is provided in the inner plate 1 below the positioning plate 7. A circular follower plate 13 is provided in the cavity 6. The follower plate 13 is coaxially connected to the rotating shaft 4. The follower plate 13 can rise, fall and rotate in the cavity 6.

[0032] The top of the follower plate 13 is provided with a first convex component and a second convex component, the bottom of the positioning plate 7 is provided with a first concave component and a second concave component that cooperate with the first convex component and the second convex component, and the inner plate 1 is also provided with an elastic reset component that cooperates with the rotating shaft 4.

[0033] The downward pressure of the rotating shaft 4 causes the elastic reset component to compress elastically. The rotating shaft 4 drives the follower disk 13 to descend, causing the first and second convex components on the top of the follower disk 13 to disengage from the first and second concave components at the bottom of the positioning plate 7. At this time, the rotating shaft 4 can be rotated to realize the switch position change. After the position change, the rotating shaft 4 is no longer pressed. Under the elastic force of the elastic reset component, the rotating shaft 4 and the follower disk 13 rise, causing the first and second convex components on the top of the follower disk 13 to enter the first and second concave components at the bottom of the positioning plate 7, thereby fixing the follower disk 13 and the rotating shaft 4.

[0034] The first convex component includes two cylindrical posts 11 located on the top of the follower disk 13. The two posts 11 are symmetrically arranged and located on the same radial direction of the rotating shaft 4. The posts 11 are vertically arranged and have a spherical top. The first concave component includes multiple slots 9 located at the bottom of the positioning plate 7. The depth of the slots 9 corresponds to the height of the posts 11, and the inner end of the slots 9 is also spherical. The lower part of the slots 9 is a frustum shape with the large-diameter end facing downwards, making it easier for the posts 11 to enter the slots 9. The number and position of the slots 9 correspond to the positions of the selector switch, so that when the rotating shaft 4 is rotated to any position, a slot 9 is provided above the posts 11.

[0035] The second convex component includes two universal balls 12 located on the top of the follower disk 13. The two universal balls 12 are symmetrically arranged and located on the same radial direction of the rotating shaft 4. The second concave component includes multiple positioning grooves 10 located on the bottom of the positioning plate 7. The positioning grooves 10 are spherical crown-shaped, with shapes and sizes adapted to the universal balls 12. The number and position of the positioning grooves 10 correspond to the positions of the selector switch, so that when the rotating shaft 4 is rotated to any position, a positioning groove 10 is provided above the universal balls 12.

[0036] During rotation, the universal ball bearings 12 can roll into contact with the bottom of the positioning plate 7. To reduce friction between the insert pin 11 and the bottom of the positioning plate 7, the height of the insert pin 11 is lower than the height of the universal ball bearings 12 above the top surface of the follower disk 13. A silicone pad 8 is also provided at the bottom of the positioning plate 7. After the follower disk 13 rises, it contacts the silicone pad 8. The silicone pad 8 has a vibration damping effect, reducing the vibration transmission between the follower disk 13 and the positioning plate 7.

[0037] The elastic reset assembly includes an upper ring 14 rotatably mounted at the bottom of the follower disk 13, which rotates coaxially with the rotating shaft 4. A lower ring 15 is fixedly mounted inside the inner plate 1 below the upper ring 14. The rotating shaft 4 at the bottom of the follower disk 13 passes through the inner sides of the upper ring 14 and the lower ring 15 and exits the inner plate 1. The upper ring 14 rises and falls with the follower disk 13, while the lower ring 15 remains in a fixed position. A spring 16 is provided between the upper ring 14 and the lower ring 15. A plurality of telescopic rods 17 are also provided between the upper ring 14 and the lower ring 15, arranged parallel to the axial direction of the rotating shaft 4. The telescopic rods 17 fix the upper ring 14 to prevent it from rotating, and are located between the spring 16 and the rotating shaft 4.

[0038] The present invention allows the rotating shaft 4 to rotate only after the pressing handle 5 separates the convex component and the concave component. After rotation to the correct position, the elastic force of the elastic reset component causes the convex component to enter the concave component, thereby locking the rotating shaft 4 and avoiding the risk of accidental contact. During the rotation of the switch, the universal ball 12, which is the convex component, engages with the positioning groove 10, which is the concave component, providing operation feedback to the operator. Through operation feedback, the operator can know whether the rotation is in place.

[0039] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A changeover switch, characterized in that, include: handle; The pivot is located on the handle; The inner plate is rotatably connected to the rotating shaft, which passes through the inner plate. The inner plate is provided with a positioning plate, and the inner plate inside the positioning plate has a cavity. The cavity contains a follower disk connected to the rotating shaft. The side of the follower disk near the positioning plate is provided with a first convex component and a second convex component. The side of the positioning plate near the follower disk is provided with a first concave component and a second concave component that cooperate with the first convex component and the second convex component. The inner plate is also provided with an elastic reset component that cooperates with the rotating shaft. The elastic force of the elastic reset component drives the rotating shaft to move the follower disk elastically toward the positioning plate.

2. The changeover switch according to claim 1, characterized in that, The follower disk is circular and is coaxially connected to the rotating shaft.

3. The changeover switch according to claim 1, characterized in that, The first convex component includes a post disposed on the follower plate, and the first concave component includes a plurality of slots disposed on the positioning plate, the number and position of the slots corresponding to the gear positions of the changeover switch.

4. The changeover switch according to claim 3, characterized in that, The insertion post is cylindrical with a spherical top. The depth of the slot corresponds to the height of the insertion post. The slot is a frustum-shaped cone with the large-diameter end facing outwards, and the inner end of the slot is spherical.

5. The changeover switch according to claim 3, characterized in that, The second convex component includes a universal ball bearing disposed on the follower plate, and the second concave component includes a plurality of positioning grooves disposed on the positioning plate. The positioning grooves are spherical crown-shaped and their size is adapted to the universal ball bearings. The number and position of the positioning grooves correspond to the gear positions of the selector switch.

6. The changeover switch according to claim 5, characterized in that, The height of the insert is lower than the height of the universal ball bearing on the follower plate.

7. The changeover switch according to claim 1, characterized in that, The positioning plate has a silicone pad on the side near the follower plate.

8. The changeover switch according to claim 1, characterized in that, The elastic reset assembly includes an upper ring rotatably disposed on the side of the follower disk away from the positioning plate. The upper ring rotates coaxially with the rotating shaft. A lower ring is fixedly disposed inside the inner plate on the outer side of the upper ring. The rotating shaft passes through the inner sides of the upper and lower rings and exits the inner plate. A spring is disposed between the upper and lower rings.

9. The changeover switch according to claim 8, characterized in that, A plurality of telescopic rods are provided between the upper ring and the lower ring, and the telescopic rods are located between the spring and the rotating shaft.

10. The changeover switch according to any one of claims 1 to 9, characterized in that, An inner plate is connected to an outer side of a middle plate, and a panel is connected to an outer side of the middle plate. The pivot passes through the middle plate and the panel, and a conversion mark is provided on the panel.

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