Mistaken touch prevention device for emergency stop switch

Abstract

The utility model discloses a mistaken touch prevention device for an emergency stop switch, which comprises a base, the top of the base is fixedly connected with a supporting block, the top of the supporting block is fixedly connected with an operation box, the operation box is internally provided with a cavity, and the interior of the cavity is slidably connected with a mistaken touch prevention mechanism. A springback mechanism is fixedly connected to the edge of one side of the top face of the operation box, and a protective cover is fixedly connected to one side of the springback mechanism. According to the mistaken touch prevention device for the emergency stop switch, through the arrangement of the springback mechanism, when the protective cover is opened, a bolt blocked on the surface of a positioning buckle is pulled out, at the moment, the protective cover loses external force support, and elastic potential energy generated by two torsion springs in a fixing cylinder at the edge of one side of the bottom of the protective cover drives the protective cover to return to the initial position; therefore, the effect of automatically opening the protective cover is achieved, workers do not need to manually open the protective cover, operation steps are reduced, and convenience is provided for the workers to use the protective cover.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-accidental touch devices, specifically to an anti-accidental touch device for an emergency stop switch. Background Technology

[0002] In various industrial environments such as manufacturing, mining, and construction, the efficient operation of machinery and equipment is key to productivity, but this also poses a potential threat to the personal safety of operators. Statistics show that countless people are injured or killed in industrial accidents worldwide each year, a significant portion of which stem directly from delayed response times or improper operation in emergency situations. Emergency stop switches, as one of the most direct and effective emergency stop mechanisms, can quickly cut off the machine's power source in critical moments, protecting personnel from injury. Emergency stop switches are typically equipped with anti-accidental activation devices.

[0003] Existing anti-accidental-touch devices for emergency stop switches typically involve installing a protective cover on the emergency stop switch to prevent accidental activation by personnel. However, opening the protective cover requires manual operation, which increases the number of steps involved and is not convenient. Therefore, an anti-accidental-touch device for emergency stop switches is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: to provide an emergency stop switch anti-accidental contact device with high practicality, simple operation and simple structure, which solves the problem mentioned in the background art that the staff needs to manually open the protective cover, which increases the manual operation steps and is not convenient.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An anti-accidental-touch device for an emergency stop switch includes a base, a support block fixedly connected to the top of the base, an operating box fixedly connected to the top of the support block, a cavity inside the operating box, an anti-accidental-touch mechanism slidably connected inside the cavity, a rebound mechanism fixedly connected to one edge of the top surface of the operating box, a protective cover fixedly connected to one side of the rebound mechanism, the anti-accidental-touch mechanism including a pressing post slidably connected inside the cavity, two positioning rods fixedly connected to the upper surface of the pressing post, a buffer spring overlapping the bottom of the pressing post, an emergency stop button sleeved inside the buffer spring; the rebound mechanism includes two fixed cylinders fixedly connected to one edge of the top surface of the operating box, a torsion spring fixedly connected to one side of the fixed cylinder, and a rotating cylinder fixedly connected to one side of the torsion spring.

[0007] As a further embodiment of this utility model: the rotating cylinder is rotatably connected to the inside of the fixed cylinder, and the protective cover is fixedly connected to one side of the rotating cylinder, so that the rotating cylinder can easily drive the protective cover to rotate.

[0008] As a further embodiment of this utility model: a placement groove is provided in the middle of the surface of the support block, and the buffer spring and the emergency stop button are both installed inside the placement groove. The buffer spring facilitates the cushioning of the pressing column.

[0009] As a further embodiment of this utility model: a handle is fixedly connected to the top surface of the pressing column, and an anti-slip sleeve is fitted onto the surface of the handle to facilitate anti-slip.

[0010] As a further embodiment of this utility model: two positioning buckles are hinged to one side of the surface of the protective cover. The surface of the positioning buckle is provided with a positioning hole, and a limiting mechanism is inserted into the positioning hole. The limiting mechanism facilitates the limiting of the positioning buckle.

[0011] As a further embodiment of this utility model: the limiting mechanism includes a positioning block inserted into the positioning hole, the positioning block having a limiting hole inside, and a pin inserted into the limiting hole to prevent the positioning buckle from sliding.

[0012] As a further embodiment of this utility model: the surface of the base is provided with four threaded holes, and the internal threads of the threaded holes are connected to threaded posts, which facilitate the fixing of the base.

[0013] The beneficial effects of this utility model are:

[0014] 1. With the rebound mechanism, when the protective cover is opened, the pin blocking the positioning buckle surface is pulled out. At this time, the protective cover loses external force support. The elastic potential energy generated by the two torsion springs inside the fixing cylinder on one side of the bottom of the protective cover drives the protective cover back to the starting position, thereby achieving the effect of automatic opening of the protective cover. There is no need for the staff to open it manually, which reduces the operation steps and provides convenience for the staff.

[0015] 2. With the anti-accidental touch mechanism in place, when the protective cover loses its protective function, first pull the pressing column upwards and rotate it so that the two positioning rods on the upper surface of the pressing column form a passage with the sliding groove inside the cavity. At this time, continue to press downwards, and the pressing column will squeeze the buffer spring at the bottom. After the buffer spring reaches a certain degree of deformation, the pressing column will contact the emergency stop button, and pressing the emergency stop button will realize the rapid emergency stop of the equipment. When the pressing column is released, the pressing column will be returned to the starting position by the reverse force provided by the buffer spring at the bottom. Rotating the pressing column will cause the positioning rods on the surface to be locked inside the cavity, thereby achieving a double anti-accidental touch effect for the emergency stop button. Even if the protective cover loses its protective function, the staff will still not accidentally touch it. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the springback mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the anti-accidental touch mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the operation box of this utility model.

[0021] In the diagram: 1. Base; 2. Support block; 3. Control box; 4. Anti-accidental touch mechanism; 401. Pressing post; 402. Positioning rod; 403. Buffer spring; 404. Emergency stop button; 5. Rebound mechanism; 501. Fixed cylinder; 502. Torsion spring; 503. Rotating cylinder; 6. Protective cover; 7. Handle; 8. Positioning buckle; 9. Limiting mechanism; 901. Positioning block; 902. Pin; 10. Threaded post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4As shown, an anti-accidental-touch device for an emergency stop switch includes a base 1, a support block 2 fixedly connected to the top of the base 1, and an operating box 3 fixedly connected to the top of the support block 2. The operating box 3 has an internal cavity, and an anti-accidental-touch mechanism 4 is slidably connected inside the cavity. Due to the anti-accidental-touch mechanism 4, when the protective cover 6 is opened and loses its protective function, first pull the pressing column 401 upwards and rotate the pressing column 401, so that the two positioning rods 402 on the upper surface of the pressing column 401 form a passage with the sliding groove inside the cavity. Then, continuing to press downwards will cause the pressing column 401 to... When the bottom buffer spring 403 is compressed to a certain degree of deformation, the pressing column 401 contacts the emergency stop button 404, and pressing the emergency stop button 404 quickly stops the equipment. Releasing the pressing column 401 causes it to return to its initial position due to the counterforce provided by the bottom buffer spring 403. Rotating the pressing column 401 causes the surface positioning rod 402 to engage inside the cavity, thus achieving a double anti-accidental activation effect for the emergency stop button 404. Even if the protective cover 6 loses its protective function, the operator will still not be able to use it. Accidental activation may occur. A spring-loaded mechanism 5 is fixedly connected to one edge of the top surface of the control box 3. This mechanism 5, when the protective cover 6 is opened, pulls out the pin 902 blocking the surface of the positioning buckle 8. At this point, the protective cover 6 loses external support, and the elastic potential energy generated by the two torsion springs 502 inside the fixing cylinder 501 at the bottom edge of the protective cover 6 drives the protective cover 6 back to its initial position, thus achieving automatic opening of the protective cover 6 without manual intervention, reducing operational steps and providing convenience for operators. The rebound mechanism 5 has a protective cover 6 fixedly connected to one side. The anti-accidental touch mechanism 4 includes a pressing column 401 slidably connected inside the cavity. Two positioning rods 402 are fixedly connected to the upper surface of the pressing column 401. A buffer spring 403 is attached to the bottom of the pressing column 401. An emergency stop button 404 is sleeved inside the buffer spring 403. The rebound mechanism 5 includes two fixed cylinders 501 fixedly connected to one edge of the top surface of the operation box 3. A torsion spring 502 is fixedly connected to one side of the fixed cylinder 501. A rotating cylinder 503 is fixedly connected to one side of the torsion spring 502.

[0024] like Figure 2 As shown, the rotating cylinder 503 is rotatably connected to the inside of the fixed cylinder 501, and the protective cover 6 is fixedly connected to one side of the rotating cylinder 503. The rotating cylinder 503 facilitates the rotation of the protective cover 6.

[0025] like Figure 3 As shown, a placement groove is provided in the middle of the surface of the support block 2. The buffer spring 403 and the emergency stop button 404 are both installed inside the placement groove. The buffer spring 403 facilitates the buffering of the pressing column 401.

[0026] like Figure 1As shown, a handle 7 is fixedly connected to the top surface of the pressing column 401, and an anti-slip sleeve is fitted onto the surface of the handle 7 to prevent slipping.

[0027] like Figure 4 As shown, two positioning buckles 8 are hinged to one side of the surface of the protective cover 6. The surface of the positioning buckle 8 is provided with positioning holes, and a limiting mechanism 9 is inserted into the inside of the positioning holes. The limiting mechanism 9 facilitates the limiting of the positioning buckle 8.

[0028] like Figure 4 As shown, the limiting mechanism 9 includes a positioning block 901 inserted into the positioning hole. The positioning block 901 has a limiting hole inside, and a pin 902 is inserted into the limiting hole. The pin 902 facilitates blocking the sliding of the positioning buckle 8.

[0029] like Figure 1 As shown, the surface of the base 1 has four threaded holes, and the threaded holes are connected to threaded posts 10, which facilitates the fixing of the base 1.

[0030] The working principle of this utility model is as follows: When the protective cover 6 is opened, the pin 902 blocking the surface of the positioning buckle 8 is pulled out. At this time, the protective cover 6 loses external force support, and the elastic potential energy generated by the two torsion springs 502 inside the bottom edge fixing cylinder 501 of the protective cover 6 drives the protective cover 6 back to the starting position.

[0031] When the protective cover 6 is opened and loses its protective function, first pull the pressing column 401 upward and rotate the pressing column 401 so that the two positioning rods 402 on the upper surface of the pressing column 401 form a passage with the sliding groove inside the cavity. At this time, continue to press downward. The pressing column 401 will squeeze the bottom buffer spring 403. After the buffer spring 403 reaches a certain degree of deformation, the pressing column 401 will contact the emergency stop button 404. Press the emergency stop button 404 to realize the rapid emergency stop of the equipment. Release the pressing column 401. The pressing column 401 will be subjected to the reverse force provided by the bottom buffer spring 403 to return it to the starting position. Rotate the pressing column 401 so that the positioning rods 402 on the surface are stuck inside the cavity.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A false touch prevention device for an emergency stop switch comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a supporting block (2), the top of the supporting block (2) is fixedly connected with an operation box (3), the inside of the operation box (3) is provided with a cavity, the inside of the cavity is slidably connected with a mistaken touch prevention mechanism (4), the edge of the top surface of the operation box (3) is fixedly connected with a rebound mechanism (5), one side of the rebound mechanism (5) is fixedly connected with a protective cover (6), The mistaken touch prevention mechanism (4) comprises a pressing column (401) slidably connected in the cavity, the upper surface of the pressing column (401) is fixedly connected with two positioning rods (402), the bottom of the pressing column (401) is overlapped with a buffer spring (403), the inside of the buffer spring (403) is sleeved with an emergency stop button (404); The rebound mechanism (5) comprises two fixed cylinders (501) fixedly connected with the edge of the top surface of the operation box (3), one side of the fixed cylinder (501) is fixedly connected with a torsion spring (502), one side of the torsion spring (502) is fixedly connected with a rotating cylinder (503).

2. The false touch prevention device for an emergency stop switch according to claim 1, characterized by The rotating cylinder (503) is rotatably connected in the fixed cylinder (501), and the protective cover (6) is fixedly connected with one side of the rotating cylinder (503).

3. The false touch prevention device for an emergency stop switch according to claim 1, wherein The surface of the supporting block (2) is provided with a placing groove in the middle, and the buffer spring (403) and the emergency stop button (404) are installed in the inside of the placing groove.

4. The false touch prevention device for an emergency stop switch according to claim 1, characterized in that, The top surface of the pressing column (401) is fixedly connected with a handle (7), and the surface of the handle (7) is sleeved with an anti-skid sleeve.

5. The false touch prevention device for an emergency stop switch according to claim 1, wherein One side of the surface of the protective cover (6) is hingedly connected with two positioning buckles (8) through a hinge, the surface of the positioning buckle (8) is provided with a positioning hole, and the inside of the positioning hole is inserted with a limiting mechanism (9).

6. The false touch prevention device for an emergency stop switch according to claim 5, wherein The limiting mechanism (9) comprises a positioning block (901) inserted in the positioning hole, the inside of the positioning block (901) is provided with a limiting hole, and the inside of the limiting hole is inserted with a bolt (902).

7. The false touch prevention device for an emergency stop switch according to claim 1, wherein The surface of the base (1) is provided with four threaded holes, and the inside of the threaded hole is threadedly connected with a threaded column (10).

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