Temperature control reset mistaken touch prevention assembly

Abstract

The utility model relates to temperature control switch technical field, and disclose temperature control reset mistake -proof contact subassembly, including switch main part, a plurality of metal contact piece are fixed in switch main part inner wall, a plurality of clamping grooves for metal contact piece temporary positioning are seted up in switch main part inner wall, the outer circumferential surface of switch main part is seted up with side arc groove, the inner wall of side arc groove sets up limit sliding slot, and the connecting piece is slidably connected in the inner wall of limit sliding slot. The utility model discloses an arc pull -out piece of side arc groove sliding is arranged on the circumferential surface of switch main part, and the reset operation needs to be with specific gesture, palm heart is placed in switch top, four fingers grasp the outer circumferential surface, and the big thumb is embedded in arc pull -out groove and adds the rotating force, can trigger reset action only, and the operation mode accords with ergonomics but increases the operation complexity on purpose, effectively avoid the accidental reset caused by clothes wiping, tool touch or unconscious contact, significantly improve the stability and operation reliability of equipment in complex environment.

Description

Technical Field

[0001] This utility model belongs to the field of temperature control switch technology, and specifically relates to a temperature control reset anti-accidental touch component. Background Technology

[0002] A temperature control switch is an electrical component that automatically regulates the on / off state of a circuit based on temperature changes. It consists of two metal strips with different coefficients of thermal expansion. When the temperature changes, the difference in expansion causes the metal strips to bend. After bending, the metal strips are restricted in position by the grooves on the inner wall, thereby triggering the on / off state of the circuit. The temperature controller needs to be manually pressed to restore power.

[0003] In the existing technology, the temperature control switch usually places the reset button on the top of the equipment, adjacent to the test button, and generally uses a direct axial pressing triggering method. The top-mounted and protruding reset button is very easy to be accidentally touched. For example, during daily maintenance, equipment cleaning or when people pass by, it is easy to cause accidental reset due to friction from clothing, collision with tools or unintentional contact, which affects the stability and reliability of the equipment.

[0004] Secondly, the reset button and the test button are similar in shape and close in position, which can easily lead to confusion during operation and further increase the risk of misoperation. In addition, the simple linear press-type reset structure lacks an operation confirmation step, and the reset action is simple and cannot effectively distinguish between intentional operation and accidental contact, which poses a particularly prominent safety hazard in vibrating or densely populated environments.

[0005] Furthermore, existing reset buttons are usually directly connected to the internal spring mechanism. Repeated pressing or excessive force can easily lead to spring fatigue, deformation, or even damage, reducing the service life of the switch. At the same time, since there are no additional operational constraints during the reset process, it is difficult for operators to judge whether the reset is truly in place, which can easily lead to incomplete reset, affecting the normal recovery of the temperature control switch after overload protection, and posing a potential threat to the safe operation of the entire electrical system. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a temperature control reset anti-accidental touch component.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a temperature-controlled reset anti-accidental touch component, including a switch body, a plurality of metal contacts fixed on the inner wall of the switch body, a plurality of slots for temporary positioning of the metal contacts on the inner wall of the switch body, a side arc groove on the outer circumferential surface of the switch body, a limiting slide groove on the inner wall of the side arc groove, a connecting member slidably connected to the inner wall of the limiting slide groove, an arc-shaped lever fixed at one end of the connecting member near the side arc groove, an arc-shaped lever groove on the outer circumferential surface of the arc-shaped lever, an active member fixed at the other end of the connecting member, a rotating shaft slidably connected to the surface of the active member, a lever rotatably connected to the circumferential surface of the rotating shaft on the surface of the active member, and the middle part of the lever rotatably connected to the inner wall of the switch body through the rotating shaft.

[0008] Preferably, the inner wall of the switch body is provided with an arc-limiting groove, the bottom end of the rotating shaft on the surface of the active component is slidably connected to the inner wall of the arc-limiting groove, a return spring is fixed on the circumferential surface of the rotating shaft, and the other end of the return spring is fixed to the end of the inner wall of the arc-limiting groove away from the lever.

[0009] Preferably, the end of the lever near the metal contact plate is Z-shaped and the height of the Z-shaped end of the lever matches the height of the metal contact plate when it is not reset, and the Z-shaped end of the lever is covered with a rubber layer.

[0010] Preferably, the Z-shaped end of the lever facing the metal contact plate is provided as an auxiliary bevel.

[0011] Preferably, the connector is U-shaped, with a higher vertical section at the end of the connector near the arc-shaped lever and a shorter vertical section at the end of the connector away from the arc-shaped lever, and a parallel section at the top of the shorter vertical section.

[0012] Preferably, the active component is fan-shaped, and the arc-shaped side of the active component is fixed to the parallel section of the connecting component.

[0013] Preferably, the inner wall of the side arc groove is provided with an auxiliary sliding groove, and the inner wall of the auxiliary sliding groove is slidably connected with a protrusion. One end of the protrusion is fixed to the inner circumferential surface of the arc pawl, and the bottom end of the protrusion is fixed to the higher vertical section of the connecting piece.

[0014] Preferably, a limiting groove is provided at the bottom and top of the inner wall of the side arc groove, and a wing plate is slidably connected to the inner wall of the limiting groove, with one side of the wing plate fixed to the side of the arc lever.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model features an arc-shaped lever that slides along a side arc groove on the circumferential surface of the switch body. During the reset operation, a specific hand gesture is required: the palm is placed on the top of the switch, four fingers grasp the outer circumference, and the thumb is inserted into the arc groove and a rotational force is applied to trigger the reset action. This operation method is ergonomic but deliberately increases the complexity of operation, effectively avoiding accidental reset caused by wiping with clothing, touching with tools, or unintentional contact, and significantly improving the stability and operational reliability of the equipment in complex environments.

[0017] 2. This utility model completely separates the reset operation mechanism from the testing function in terms of structure and operation, greatly reducing the risk of misoperation. The arc lever does not directly link with the internal metal contact, but acts indirectly through the transmission mechanism. This avoids excessive force on the sensitive spring and reduces metal fatigue and deformation caused by repeated operation, thus extending the service life of the component. At the same time, the contact between the lever and the metal contact provides the operator with clear force feedback during the reset process, which helps to confirm that the reset action is performed in place. It also makes it easy to adapt to different product models by replacing levers of different specifications or adjusting the position of the rotating shaft, thus improving the versatility and maintainability of the component.

[0018] 3. This utility model guides the sliding trajectory of the rotating shaft on the active component through the arc-limiting groove, effectively controlling its stroke and avoiding unnecessary wear caused by excessive displacement. The fan-shaped design of the active component ensures full contact with the connecting parts while achieving a compact structure, saving materials and reducing internal space occupation. The return spring can automatically reset the mechanism after operation, improving the convenience of operation and user experience, and ensuring the accuracy and consistency of the reset action.

[0019] 4. This utility model uses a U-shaped connector and a tortuous limiting groove to form an effective dust and foreign object barrier. The limiting groove and connector, the auxiliary groove and protrusion, and the limiting groove and wing plate together constrain the movement trajectory of the arc lever, preventing it from deviating, jamming or abnormal wear during operation, ensuring smooth and stable operation. At the same time, the dimensions of the load-bearing structure such as the protrusion are optimized to be larger than other matching components, which can effectively disperse operating stress and improve the mechanical strength and long-term durability of the overall mechanism. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the arc-shaped lever of this utility model;

[0022] Figure 3 This is a schematic diagram of the side arc groove of this utility model;

[0023] Figure 4 This is a cross-sectional view of the wing plate of this utility model;

[0024] Figure 5 This is a cross-sectional view of the connecting component of this utility model;

[0025] Figure 6 This is a cross-sectional view of the auxiliary slide of this utility model;

[0026] Figure 7 This is a schematic diagram of the reset spring of this utility model.

[0027] Figure label:

[0028] 1. Switch body; 101. Metal contact piece;

[0029] 2. Arc-shaped lever; 201. Arc-shaped groove; 202. Side arc groove; 203. Connecting piece; 204. Limiting slide groove; 205. Driving component; 206. Lever;

[0030] 3. Arc-limiting groove; 301. Return spring;

[0031] 4. Auxiliary inclined plane;

[0032] 5. Auxiliary groove; 501. Protrusion;

[0033] 6. Restriction groove; 601. Wing plate. Detailed Implementation

[0034] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0036] Example 1:

[0037] refer to Figures 1-7 The temperature-controlled reset anti-accidental-touch component includes a switch body 1. Multiple metal contacts 101 are fixed on the inner wall of the switch body 1. Multiple slots for temporary positioning of the metal contacts 101 are opened on the inner wall of the switch body 1. A side arc groove 202 is opened on the outer peripheral surface of the switch body 1. A limiting slide groove 204 is opened on the inner wall of the side arc groove 202. A connector 203 is slidably connected to the inner wall of the limiting slide groove 204. An arc lever 2 is fixed at one end of the connector 203 near the side arc groove 202. An arc lever groove 201 is opened on the outer peripheral surface of the arc lever 2. An active component 205 is fixed at the other end of the connector 203. A rotating shaft is slidably connected to the surface of the active component 205. A lever 206 is rotatably connected to the circumference of the rotating shaft on the surface of the active component 205. The middle part of the lever 206 is rotatably connected to the inner wall of the switch body 1 through the rotating shaft.

[0038] Specifically, by setting an arc-shaped lever 2 that can slide along the side arc groove 202 on the circumferential surface of the switch body 1, a specific hand gesture is required for the reset operation: the palm is placed on the top of the switch, four fingers grasp the outer circumference, and the thumb is inserted into the arc groove 201 and a rotational force is applied to trigger the reset action. This operation method is ergonomic but deliberately increases the complexity of operation, effectively avoiding accidental reset caused by wiping with clothing, touching with tools, or unintentional contact, and significantly improving the stability and operational reliability of the equipment in complex environments. By completely separating the reset operation mechanism from the testing function in terms of structure and operation method, The separation greatly reduces the risk of misoperation. The arc lever 2 does not directly link with the internal metal contact 101, but indirectly through the transmission mechanism. This avoids excessive force on the sensitive spring and reduces metal fatigue and deformation caused by repeated operation, thus extending the service life of the component. At the same time, the contact between the lever 206 and the metal contact 101 provides clear force feedback to the operator during the reset process, which helps to confirm that the reset action is performed in place. It also makes it easy to adapt to different models of products by replacing levers 206 of different specifications or adjusting the position of the rotating shaft, thus improving the versatility and maintainability of the component.

[0039] The inner wall of the switch body 1 has an arc-limiting groove 3. The bottom end of the rotating shaft on the surface of the driving member 205 is slidably connected to the inner wall of the arc-limiting groove 3. A return spring 301 is fixed on the circumference of the rotating shaft. The other end of the return spring 301 is fixed to the end of the inner wall of the arc-limiting groove 3 away from the lever 206. The driving member 205 is fan-shaped, and the arc-shaped side of the driving member 205 is fixed to the parallel section of the connecting member 203.

[0040] Specifically, the sliding trajectory of the rotating shaft on the active component 205 is guided by the arc-limiting groove 3, effectively controlling its stroke and avoiding unnecessary wear caused by excessive displacement. The fan-shaped active component 205 ensures full contact with the connecting component 203 while achieving a compact structure, saving materials and reducing internal space occupation. The return spring 301 can automatically reset the mechanism after operation, improving the convenience of operation and user experience, ensuring the accuracy and consistency of the reset action, and the operator can install a slotted shielding layer on the top of the arc-limiting groove 3 to prevent the return spring 301 from being squeezed out of the groove.

[0041] The end of the lever 206 near the metal contact 101 is Z-shaped and its height matches the height of the metal contact 101 when it is not in its reset position. The Z-shaped end of the lever 206 is covered with a rubber layer. The side of the Z-shaped end of the lever 206 facing the metal contact 101 is provided as an auxiliary inclined surface 4.

[0042] Specifically, the lever 206 is Z-shaped, which allows the lever 206 to have a larger lever arm when it contacts the metal contact 101. This allows the operator to push the metal contact 101 back to its original position with less force. The rubber layer also acts as insulation to prevent signal interference caused by static electricity. The auxiliary inclined surface 4 guides and pushes the metal contact 101 to descend and reset when it contacts it, preventing deformation and damage caused by hard contact and improving the service life of both.

[0043] The connector 203 is U-shaped. The end of the connector 203 closest to the arc-shaped lever 2 has a higher vertical section, and the end of the connector 203 furthest from the arc-shaped lever 2 has a shorter vertical section. A parallel section is located at the top of the shorter vertical section. An auxiliary sliding groove 5 is formed on the inner wall of the side arc groove 202. A protrusion 501 is slidably connected to the inner wall of the auxiliary sliding groove 5. One end of the protrusion 501 is fixed to the inner circumferential surface of the arc-shaped lever 2, and the bottom end of the protrusion 501 is fixed to the higher vertical section of the connector 203. A limiting groove 6 is formed at both the bottom and top of the inner wall of the side arc groove 202. A wing plate 601 is slidably connected to the inner wall of the limiting groove 6, and one side of the wing plate 601 is fixed to the side of the arc-shaped lever 2.

[0044] Specifically, by using a U-shaped connector 203 and matching it with a tortuous limiting groove 204, an effective dust and foreign object barrier is formed. The limiting groove 204, connector 203, auxiliary groove 5 and protrusion 501, and limiting groove 6 and wing plate 601 together constrain the movement trajectory of the arc lever 2, preventing it from deviating, jamming or abnormal wear during operation, and ensuring smooth and stable operation. At the same time, the load-bearing structure such as protrusion 501 has been optimized to be larger than other matching components, which can effectively disperse operating stress and improve the mechanical strength and long-term durability of the overall mechanism.

[0045] Example 2:

[0046] refer to Figures 1-7 The staff used the structure disclosed in this utility model in a high-temperature sterilization production line of a food processing plant;

[0047] The present invention utilizes a temperature-controlled reset anti-accidental-touch component. This production line employs twelve 22kW high-temperature sterilization devices, each with a temperature control switch rated at 63A. When the equipment trips due to overheating protection, the operator must follow the prescribed procedure: First, place the palm against the 68mm diameter circular area on the top of the switch body, naturally encircle the switch with four fingers, and accurately insert the thumb into the 8mm deep arc groove, applying a clockwise rotational torque of 1.2N·m along the side arc groove.

[0048] At this point, the arc-shaped lever, through the precise engagement of its protrusion and auxiliary slide groove, drives the U-shaped connector to move smoothly 12 mm within the limiting slide groove, pushing the fan-shaped active component to compress the return spring and store energy. The active component drives the lever to rotate 28 degrees via a rotating shaft. The polyurethane rubber layer at the Z-shaped end of the lever, with its auxiliary inclined surface, contacts the metal contact piece, precisely pressing it back to the energized position with a pressure of 4.5N. The entire reset process requires continuous force for more than 1.5 seconds, completely eliminating accidental triggering caused by wiping work clothes or tool collisions. Actual testing showed that at a vibration intensity of 4.5 m / s... 2 In a production environment, this component operated continuously for six months without a single false reset, reducing the failure rate by 98.7% compared to traditional top-button structures. Meanwhile, the soft-contact design between the lever and the metal contacts allows the switch's mechanical life to exceed 100,000 cycles, meeting the industry standard requirement of 20,000 cycles.

[0049] The working principle of this utility model is as follows: When a reset is required, the operator inserts his thumb into the arc groove 201 of the arc lever 2 with a specific gesture and applies a rotational force. The arc lever 2 slides along the arc groove 202 on the side of the switch body 1. The movement trajectory is stabilized by the cooperation between the protrusion 501 and the auxiliary slide 5 and the sliding connection between the wing plate 601 and the limiting groove 6.

[0050] The arc-shaped lever 2 drives the U-shaped connector 203 to slide within the limiting groove 204. The connector 203 pushes the fan-shaped active component 205 so that its surface axis slides along the arc-shaped limiting groove 3 and compresses the return spring 301. The active component 205 drives the lever 206 to rotate around its central axis through the rotating shaft. The Z-shaped end of the lever 206 uses the auxiliary inclined surface 4 covered with a rubber layer to press down on the unreset metal contact piece 101, causing it to disengage from the original slot and return to the energized position.

[0051] During the reset process, the contact between the lever 206 and the metal contact 101 provides operational force feedback. After the reset is completed, the arc lever 2 is released, and the reset spring 301 pushes the driving component 205 and the connecting component 203 to move in the opposite direction, causing the arc lever 2 to automatically return to its initial position. This design effectively distinguishes between intentional operation and accidental contact through a complex operation path and mechanical linkage, achieving the function of preventing accidental touch.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled reset anti-accidental-touch component, comprising a switch body (1), wherein a plurality of metal contacts (101) are fixed on the inner wall of the switch body (1), and a plurality of slots for temporary positioning of the metal contacts (101) are provided on the inner wall of the switch body (1), characterized in that: The outer peripheral surface of the switch body (1) is provided with a side arc groove (202), and the inner wall of the side arc groove (202) is provided with a limiting slide groove (204). The inner wall of the limiting slide groove (204) is slidably connected to a connecting piece (203). One end of the connecting piece (203) near the side arc groove (202) is fixed with an arc lever (2). The outer peripheral surface of the arc lever (2) is provided with an arc lever groove (201). The other end of the connecting piece (203) is fixed with an active member (205). The surface of the active member (205) is slidably connected with a rotating shaft. The circumferential surface of the rotating shaft on the surface of the active member (205) is rotatably connected with a lever (206). The middle part of the lever (206) is rotatably connected to the inner wall of the switch body (1) through the rotating shaft.

2. The temperature control reset anti-accidental touch component according to claim 1, characterized in that: The inner wall of the switch body (1) is provided with an arc-limiting groove (3). The bottom end of the rotating shaft on the surface of the active component (205) is slidably connected to the inner wall of the arc-limiting groove (3). A reset spring (301) is fixed on the circumferential surface of the rotating shaft. The other end of the reset spring (301) is fixed to the end of the inner wall of the arc-limiting groove (3) away from the lever (206).

3. The temperature control reset anti-accidental touch component according to claim 1, characterized in that: The lever (206) is Z-shaped and tilted at the end near the metal contact (101). The height of the Z-shaped end of the lever (206) matches the tilt height of the metal contact (101) when it is not reset. The Z-shaped end of the lever (206) is covered with a rubber layer.

4. The temperature control reset anti-accidental touch component according to claim 3, characterized in that: The Z-shaped end of the lever (206) facing the metal contact plate (101) is provided as an auxiliary inclined surface (4).

5. The temperature control reset anti-accidental touch component according to claim 1, characterized in that: The connector (203) is U-shaped. The end of the connector (203) near the arc lever (2) has a higher vertical section, and the end of the connector (203) away from the arc lever (2) has a shorter vertical section. The top of the shorter vertical section of the connector (203) has a parallel section.

6. The temperature control reset anti-accidental touch component according to claim 5, characterized in that: The active component (205) is fan-shaped, and the arc-shaped side of the active component (205) is fixed to the parallel section of the connecting component (203).

7. The temperature control reset anti-accidental touch component according to claim 4, characterized in that: An auxiliary sliding groove (5) is provided on the inner wall of the side arc groove (202). A protrusion (501) is slidably connected to the inner wall of the auxiliary sliding groove (5). One end of the protrusion (501) is fixed to the inner circumferential surface of the arc pawl (2), and the bottom end of the protrusion (501) is fixed to the higher vertical section of the connector (203).

8. The temperature control reset anti-accidental touch component according to claim 1, characterized in that: A limiting groove (6) is provided at the bottom of the inner wall of the side arc groove (202) and at the top of the inner wall of the side arc groove (202). A wing plate (601) is slidably connected to the inner wall of the limiting groove (6). One side of the wing plate (601) is fixed to the side of the arc lever (2).

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