A changeover switch

Abstract

The utility model relates to the technical field of change-over switch, specifically disclose change-over switch, including the change-over switch for circuit conversion, the front of change-over switch is provided with rotation track, change-over switch includes the body, the one side of body is provided with the wiring area, the other side is provided with the rotating handle, the rotating handle is located rotation track department, rotation track includes the track area, at least two positioning holes are provided to the track area department and are used for positioning rotating handle, the utility model rotation track's track area setting's positioning hole, the limiting piece of rotating handle holding area can be with it adaptive plug -in, when rotating handle rotates to the predetermined position, limiting piece inserts the positioning hole, can effectively prevent rotating handle and return to turn under the influence of external factors such as vibration, ensure that change-over switch is stably in the specific circuit conversion state, guarantee the stability and reliability of circuit connection.

Description

Technical Field

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

[0002] A changeover switch is an electrical component that can switch circuits and control the on / off state of different electrical devices. It is widely used in many fields such as industry, construction, and power.

[0003] Changeover switches typically rely on internal mechanical structures, such as springs and positioning devices, to fix and switch their positions. Under normal conditions, these mechanical structures ensure the switch remains stable in the set position. However, vibration generates dynamic forces, and when these forces reach a certain level, they can disrupt the original balance and locking state. For example, continuous and strong vibrations can alter the elasticity of the spring, reduce the positioning effectiveness of the positioning device, and cause the switch to rotate without human intervention.

[0004] The greater the vibration intensity, the higher the likelihood that the changeover switch will reverse. For example, near large mechanical equipment, the strong vibrations generated during the operation of the equipment can be transmitted to the changeover switch, potentially causing displacement of the internal structure of the switch and leading to its reversal.

[0005] Furthermore, when the vibration frequency is close to the natural frequency of the internal mechanical structure of the switch, resonance will occur. Resonance will cause the vibration amplitude of the internal structure of the switch to increase sharply, greatly increasing the probability of the switch turning back. Based on this, this application provides a switch. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a changeover switch that solves the problem that existing changeover switches are prone to self-rotation under strong vibrations due to insufficient anti-rotation measures.

[0007] The present invention relates to a changeover switch, which includes a changeover switch for circuit switching, and the front side of the changeover switch is provided with a rotating track; The changeover switch includes a body, one side of which is provided with a wiring area and the other side is provided with a rotating handle, which is located at the rotating track. The rotating track includes a track area, and at least two positioning holes are provided in the track area for positioning the rotating handle; The gripping area of ​​the rotary handle is provided with a limiting hole, and a limiting component is installed at the limiting hole. The limiting component is adapted to the positioning hole in the track area.

[0008] As a further improvement of this utility model, the limiting member includes a telescopic cylinder, and a positioning rod is slidably connected to the inner side of the telescopic cylinder, with one end of the positioning rod being inserted into and adapted to a positioning hole.

[0009] As a further improvement of this utility model, the inner wall of the telescopic cylinder has two symmetrically arranged through grooves on both sides, and a gripping plate is provided at the groove, which is used to control the extension and retraction of the positioning rod.

[0010] As a further improvement of this utility model, the grip plate includes a plate body, and two symmetrically arranged positioning shafts are provided on one side of the plate body near the gripping area of ​​the rotating handle.

[0011] As a further improvement of this utility model, the rotating handle is provided with a storage hole adapted to the positioning shaft, and the storage hole is slidably adapted to the positioning shaft.

[0012] As a further improvement of this utility model, the telescopic cylinder includes a cylinder body, and an insertion area is provided on the inner side of the cylinder body. A slider is provided on the inner side of the insertion area at two symmetrically arranged sliding grooves, and the slider is adapted to the plate body of the gripping plate.

[0013] As a further improvement of this utility model, a locking block is provided at one end of the positioning rod. The locking block is installed on the inner side of the cylinder and moves the positioning rod along the vertical central axis of the cylinder and the slide groove via the gripping plate and the slider.

[0014] As a further improvement of this utility model, a spring mounting area is provided on the top of the card block, a spring is vertically inserted into the spring mounting area, and the other end of the spring is engaged with one side of the rotating handle.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The positioning hole in the track area of ​​the rotating track of this utility model can be adapted to and inserted into the limiting member in the grip area of ​​the rotating handle. When the rotating handle is rotated to the predetermined position, the limiting member is inserted into the positioning hole, which can effectively prevent the rotating handle from rotating under the influence of external factors such as vibration, ensuring that the changeover switch is stably in a specific circuit switching state, and ensuring the stability and reliability of the circuit connection. Furthermore, grip plates are installed at the sliding grooves on both sides of the inner wall of the telescopic cylinder. The extension and retraction of the positioning rod can be controlled by pulling or pushing the grip plates. The positioning rod can be pulled out or inserted into the positioning hole with simple operation of the grip plates. During the process of the positioning rod being inserted into the positioning hole, the spring releases elastic potential energy to push the positioning rod into the hole, and the positioning rod has a certain pre-tightening force after insertion, which further improves the stability and reliability of the rotary handle positioning. It can remain stable even in harsh vibration environments. The overall operation process is simple and intuitive, reducing the difficulty of operation and improving the efficiency of operation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the changeover switch of this utility model; Figure 2 This is a front view schematic diagram of the changeover switch of this utility model; Figure 3 This is a top view of the changeover switch of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a three-dimensional structural diagram of the telescopic cylinder of this utility model; Figure 6 This is a three-dimensional structural diagram of the telescopic cylinder of this utility model from another angle; Figure 7 This is a front view structural diagram of the telescopic cylinder of this utility model; Figure 8 This utility model Figure 7 Schematic diagram of the cross-sectional structure of AA.

[0017] In the diagram: 1. Changeover switch; 2. Rotary track; 3. Limiting hole; 4. Limiting component; 5. Grip plate; 11. Main body; 12. Wiring area; 13. Rotating handle; 21. Track area; 22. Positioning hole; 41. Positioning rod; 42. Telescopic cylinder; 43. Slide groove; 51. Plate body; 52. Positioning shaft; 421. Cylinder body; 422. Insertion area; 423. Slider; 424. Spring mounting area. Detailed Implementation

[0018] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the illustrations in a simple schematic manner.

[0019] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The changeover switch 1 relies on internal springs, positioning devices and other mechanical structures to fix and switch positions. However, if the dynamic force generated by vibration reaches a certain level, it will disrupt its balance and locking state. For example, continuous strong vibration will change the elasticity of the spring and reduce the effectiveness of the positioning device, causing the switch to rotate without human operation.

[0021] The greater the vibration intensity, the higher the likelihood of the changeover switch 1 rotating. For example, strong vibrations generated by the operation of large mechanical equipment may cause displacement of the internal structure of the switch, leading to rotation.

[0022] Furthermore, when the vibration frequency approaches the natural frequency of the internal mechanical structure of the switch 1, resonance will be triggered, causing the vibration amplitude of the internal structure of the switch to increase sharply and significantly increasing the probability of the switch turning. Based on this, this application provides a switch 1, including a switch 1 for circuit switching, and a rotating track 2 is provided on the front of the switch 1. The changeover switch 1 includes a body 11, a wiring area 12 is provided on one side of the body 11, and a rotating handle 13 is provided on the other side. The rotating handle 13 is located at the rotating track 2. The rotating track 2 includes a track area 21, and at least two positioning holes 22 are provided in the track area 21 for positioning the rotating handle 13. A limiting hole 3 is provided in the gripping area of ​​the rotating handle 13, and a limiting component 4 is installed in the limiting hole 3. The limiting component 4 is adapted to the positioning hole 22 of the track area 21.

[0023] The rotating track 2 includes a track area 21, which is the path range for the rotating handle 13 to rotate. At least two positioning holes 22 are provided in the track area 21. These positioning holes 22 are used to position the rotating handle 13. For example, when the changeover switch 1 needs to switch between two different circuit states, the track area 21 can have two positioning holes 22, each corresponding to one of the two circuit states. If more circuit state switching is required, the number of positioning holes 22 can be increased accordingly. The positioning holes 22 can be circular, and their diameter is determined according to actual design requirements to ensure a good fit with the limiting member 4 on the rotating handle 13.

[0024] A limiting hole 3 is provided in the gripping area of ​​the rotary handle 13 for installing a limiting member 4. The limiting member 4 is adapted to the positioning hole 22 of the track area 21. When the operator rotates the rotary handle 13 to a specific position, the limiting member 4 can be inserted into the corresponding positioning hole 22, thereby fixing the rotary handle 13 in that position and achieving stable positioning of the changeover switch 1. The limiting member 4 can be in the form of a pin, and its material can be metal, such as stainless steel, to ensure sufficient strength and wear resistance. One end of the limiting member 4 can be designed in a shape that facilitates insertion into the positioning hole 22, such as a cone shape, while the other end can be designed in a shape that facilitates operation by the operator, such as having a small disc, so that the operator can easily pull out or insert the limiting member 4 into the positioning hole 22.

[0025] When circuit switching is required, the operator first grasps the grip area of ​​the rotary handle 13, pulls the limiting member 4 out of the current positioning hole 22, and then rotates the rotary handle 13, causing it to move along the track area 21 of the rotary track 2. When the rotary handle 13 reaches the desired position, the limiting member 4 is inserted into the corresponding positioning hole 22. At this point, the rotary handle 13 is fixed, and the changeover switch 1 has completed the circuit switching operation. Furthermore, due to the cooperation between the limiting member 4 and the positioning hole 22, the rotary handle 13 can be effectively prevented from rotating back under the influence of external factors such as vibration, ensuring the stability and reliability of the changeover switch 1. For example, in an industrial production workshop, the operation of large mechanical equipment generates strong vibrations. When using this changeover switch 1 for circuit control, the cooperation between the limiting member 4 and the positioning hole 22 can prevent the switch from rotating back due to vibration, thereby ensuring the normal operation of the equipment.

[0026] Please see Figure 4 , Figure 5 , Figure 6 as well as Figure 7 The limiting component 4 includes a telescopic cylinder 42, and a positioning rod 41 is slidably connected to the inner side of the telescopic cylinder 42. One end of the positioning rod 41 is inserted into and adapted to the positioning hole 22.

[0027] The inner wall of the telescopic cylinder 42 has two symmetrically arranged through grooves 43 on both sides. A gripping plate 5 is provided at the groove 43, and the gripping plate 5 is used to control the extension and retraction of the positioning rod 41.

[0028] A positioning rod 41 is slidably connected to the inner side of the telescopic cylinder 42, and the positioning rod 41 can slide linearly inside the telescopic cylinder 42. One end of the positioning rod 41 is inserted into the positioning hole 22 of the track area 21. When the rotating handle 13 is rotated to the predetermined position, this end of the positioning rod 41 can be accurately inserted into the corresponding positioning hole 22, thereby fixing the rotating handle 13 in that position and realizing the stable positioning of the changeover switch 1. The positioning rod 41 can be made of metal, such as copper alloy, because it has good wear resistance and a certain strength, ensuring that it is not easily damaged during repeated insertion and removal, and has good contact performance with the positioning hole 22, which can effectively realize the positioning function. The end of the positioning rod 41 that is inserted into the positioning hole 22 can be designed as a hemispherical shape. This shape facilitates the accurate insertion of the positioning rod 41 into the positioning hole 22 and reduces the resistance during insertion.

[0029] Two symmetrically arranged sliding grooves 43 are provided on both sides of the inner wall of the telescopic cylinder 42. These two sliding grooves 43 provide a track for the movement of the gripping plate 5. The gripping plate 5 is located at the sliding groove 43 and is connected to the positioning rod 41. Its main function is to control the extension and retraction of the positioning rod 41. Part of the gripping plate 5 is located inside the telescopic cylinder 42 and connected to the positioning rod 41, while the other part extends to the outside of the telescopic cylinder 42 through the sliding groove 43, which facilitates the operation of the operator.

[0030] When the operator needs to rotate the handle 13 to switch circuits, they simply pull the grip plate 5 outwards. Since the grip plate 5 is connected to the positioning rod 41, the positioning rod 41 will slide within the telescopic cylinder 42 as the grip plate 5 moves, thus pulling it out of the current positioning hole 22. When the handle 13 is rotated to the new predetermined position, the operator pushes the grip plate 5 inwards again, and the positioning rod 41 will slide towards the positioning hole 22 within the telescopic cylinder 42, eventually inserting into the new positioning hole 22, completing the positioning of the handle 13.

[0031] For example, when the changeover switch 1 is used in a power control system, when it is necessary to change the circuit connection state, the operator holds the rotating handle 13, pulls the holding plate 5 to pull the positioning rod 41 out of the original positioning hole 22, rotates the rotating handle 13 to the appropriate position, and pushes the holding plate 5 to insert the positioning rod 41 into the new positioning hole 22, thereby realizing the circuit conversion and ensuring that the changeover switch 1 works stably in a vibration environment.

[0032] Please see Figure 3 , Figure 4 , Figure 5 as well as Figure 6 The grip plate 5 includes a plate body 51, and two symmetrically arranged positioning shafts 52 are provided on one side of the plate body 51 near the gripping area of ​​the rotating handle 13.

[0033] The rotating handle 13 is provided with a storage hole that is adapted to the positioning shaft 52, and the storage hole is slidably adapted to the positioning shaft 52.

[0034] The telescopic cylinder 42 includes a cylinder body 421. An insertion area 422 is provided on the inner side of the cylinder body 421. A slider 423 is provided on the inner side of the insertion area 422 at two symmetrically arranged sliding grooves 43. The slider 423 is adapted to the plate body 51 of the gripping plate 5.

[0035] On one side of the plate 51, near the gripping area of ​​the rotating handle 13, there are two symmetrically arranged positioning shafts 52. The positioning shafts 52 can be cylindrical in shape, and their material can be a plastic with high hardness, such as polycarbonate, so as to ensure a certain strength and reduce the overall weight. A storage hole adapted to the positioning shaft 52 is provided at the rotary handle 13. The shape of the storage hole matches the positioning shaft 52, being a cylindrical hole. The storage hole and the positioning shaft 52 are slidably adapted, meaning that the positioning shaft 52 can slide freely in a straight line within the storage hole. When the operator operates the grip plate 5 to control the extension and retraction of the positioning rod 41, the positioning shaft 52 slides within the storage hole, ensuring the stability and accuracy of the grip plate 5's movement. When the operator pulls the grip plate 5 to remove the positioning rod 41 from the positioning hole 22, the positioning shaft 52 slides outward within the storage hole; when the operator pushes the grip plate 5 to insert the positioning rod 41 into the positioning hole 22, the positioning shaft 52 slides inward within the storage hole.

[0036] The telescopic cylinder 42 includes a cylinder body 421, which is a hollow cylindrical structure. Its material can be metal, such as aluminum alloy. The inner side of the cylinder body 421 is provided with an insertion area 422. On the inner side of the insertion area 422, a slider 423 is provided at two symmetrically arranged sliding grooves 43. The slider 423 is adapted to the plate 51 of the gripping plate 5. The slider 423 can be cuboid in shape and has a smooth surface, which can reduce the friction between it and the plate 51 of the gripping plate 5. The function of the slider 423 is to provide support and guidance for the sliding of the gripping plate 5. When the gripping plate 5 slides in the telescopic cylinder 42, the plate 51 slides along the slider 423. The slider 423 restricts the movement direction of the gripping plate 5, so that it can only slide on the predetermined track, ensuring the accuracy of the telescopic action of the positioning rod 41. In actual use of the changeover switch 1, when a circuit switching operation is required, the operator holds the rotary handle 13 and pulls the grip plate 5. At this time, the positioning shaft 52 on the grip plate 5 slides within the receiving hole of the rotary handle 13, while the plate body 51 of the grip plate 5 slides on the slider 423 inside the telescopic cylinder 42, causing the positioning rod 41 to be pulled out of the current positioning hole 22. After the operator rotates the rotary handle 13 to the new predetermined position, they push the grip plate 5, causing the positioning shaft 52 to slide in the reverse direction within the receiving hole, and the plate body 51 of the grip plate 5 to slide in the reverse direction on the slider 423, so that the positioning rod 41 is inserted into the new positioning hole 22, completing the positioning of the rotary handle 13 and realizing the circuit switching. This structural design makes the movement of the grip plate 5 more stable and accurate, improving the reliability of the changeover switch 1 operation. Even in harsh environments such as vibration, it can effectively prevent the rotary handle 13 from accidentally rotating back, ensuring the normal operation of the changeover switch 1. For example, when this changeover switch 1 is used in the control circuit of a large motor in industrial production, the vibration generated by the motor operation may affect the changeover switch 1. However, due to the reasonable cooperation structure between the grip plate 5, the rotating handle 13, and the telescopic cylinder 42, the changeover switch 1 can stably realize the circuit switching function.

[0037] Please see Figure 5 , Figure 6 , Figure 7 as well as Figure 8 One end of the positioning rod 41 is provided with a locking block, which is installed on the inner side of the cylinder 421. The locking block carries the positioning rod 41 through the gripping plate 5 and the slider 423 to reciprocate along the vertical central axis of the cylinder 421 and the slide groove 43.

[0038] The top of the locking block has a spring mounting area 424, and a spring is vertically inserted into the spring mounting area 424. The other end of the spring is engaged with one side of the rotating handle 13.

[0039] One end of the positioning rod 41 is provided with a locking block, which is installed on the inner side of the cylinder 421. The locking block can be made of metal material, such as iron alloy, to ensure that it has sufficient strength and stability. The shape of the locking block is adapted to the internal space of the cylinder 421, and it can move freely inside the cylinder 421. The locking block is tightly connected to the positioning rod 41. When the holding plate 5 slides along the slide groove 43 of the cylinder 421 under the guidance of the slider 423, the locking block will move together with the holding plate 5, thereby driving the positioning rod 41 to reciprocate along the vertical central axis of the cylinder 421 and the slide groove 43.

[0040] For example, when the operator pulls the grip plate 5, the grip plate 5, through its connection with the locking block, causes the locking block to move upward within the cylinder 421. The locking block then causes the positioning rod 41 to slide upward within the telescopic cylinder 42, causing the positioning rod 41 to be pulled out of the positioning hole 22 in the track area 21. When the operator pushes the grip plate 5, the locking block and the positioning rod 41 will move in opposite directions, and the positioning rod 41 will insert into the positioning hole 22.

[0041] The top of the card block has a spring mounting area 424, which is a groove to ensure that the spring can be securely mounted therein. The spring mounting area 424 is vertically arranged to facilitate the vertical insertion of the spring.

[0042] The spring is made of a metal material with a certain degree of elasticity, such as stainless steel spring steel. One end of the spring is inserted into the spring mounting area 424 and fits tightly with the locking block. The other end is locked to one side of the rotating handle 13. The locking method can be to set a slot on one side of the rotating handle 13, and the end of the spring is embedded in the slot to achieve a stable connection.

[0043] When the operator pulls the grip plate 5 to pull the positioning rod 41 out of the positioning hole 22, the spring will be compressed. This is because the block moves upward with the grip plate 5, the distance between the spring mounting area 424 and the rotating handle 13 decreases, and the spring is compressed and stores elastic potential energy.

[0044] When the rotary handle 13 is rotated to the new predetermined position, the operator releases the grip plate 5. At this time, the spring releases its elastic potential energy, pushing the locking block downward. Since the locking block is connected to the positioning rod 41, the positioning rod 41 will slide downward with the locking block and finally insert into the new positioning hole 22. The spring makes the insertion process of the positioning rod 41 smoother and more stable, and at the same time ensures that the positioning rod 41 has a certain preload after being inserted into the positioning hole 22, thus improving the reliability of the positioning of the rotary handle 13.

[0045] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A changeover switch, comprising a changeover switch (1) for circuit switching, wherein a rotating track (2) is provided on the front side of the changeover switch (1); Its features are: The changeover switch (1) includes a body (11), a wiring area (12) is provided on one side of the body (11), and a rotating handle (13) is provided on the other side. The rotating handle (13) is located at the rotating track (2). The rotating track (2) includes a track area (21), and at least two positioning holes (22) are provided in the track area (21) for positioning the rotating handle (13); The gripping area of ​​the rotating handle (13) is provided with a limiting hole (3), and a limiting component (4) is installed at the limiting hole (3). The limiting component (4) is adapted to the positioning hole (22) of the track area (21).

2. A changeover switch according to claim 1, characterized in that: The limiting component (4) includes a telescopic cylinder (42), and a positioning rod (41) is slidably connected to the inner side of the telescopic cylinder (42). One end of the positioning rod (41) is inserted into and adapted to the positioning hole (22).

3. A changeover switch according to claim 2, characterized in that: The inner wall of the telescopic cylinder (42) has two symmetrically arranged through grooves (43) on both sides. A gripping plate (5) is provided at the groove (43) and the gripping plate (5) is used to control the extension and retraction of the positioning rod (41).

4. A changeover switch according to claim 3, characterized in that: The grip plate (5) includes a plate body (51), and two symmetrically arranged positioning shafts (52) are provided on one side of the plate body (51) near the gripping area of ​​the rotating handle (13).

5. A changeover switch according to claim 1, characterized in that: The rotating handle (13) is provided with a storage hole that is adapted to the positioning shaft (52), and the storage hole is slidably adapted to the positioning shaft (52).

6. A changeover switch according to claim 2, characterized in that: The telescopic cylinder (42) includes a cylinder body (421), and an insertion area (422) is provided on the inner side of the cylinder body (421). A slider (423) is provided on the inner side of the insertion area (422) at two symmetrically arranged sliding grooves (43). The slider (423) is adapted to the plate body (51) of the gripping plate (5).

7. A changeover switch according to claim 2, characterized in that: One end of the positioning rod (41) is provided with a locking block, which is installed on the inner side of the cylinder (421) and carries the positioning rod (41) through the gripping plate (5) and the slider (423) to reciprocate along the vertical central axis of the cylinder (421) and the slide groove (43).

8. A changeover switch according to claim 7, characterized in that: The top of the card block is provided with a spring mounting area (424), and a spring is vertically inserted into the spring mounting area (424). The other end of the spring is engaged with one side of the rotating handle (13).

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