Mechanical electrical interlocking device

Abstract

The utility model discloses a mechanical electrical interlocking device. The mechanical and electrical interlocking device comprises a shell, a button is movably embedded in the top face of the shell, a transverse plate is fixedly arranged in the shell, the bottom end of the button extends into the shell and is provided with a telescopic rod through a snap fastener assembly, the telescopic rod is movably installed on the transverse plate through a spring, and a pressing piece is installed at the bottom end of the telescopic rod. The bottom face of an inner cavity of the shell is movably provided with a switch piece through an elastic piece, the switch piece is correspondingly arranged below the pressing piece, the shell is further internally provided with a braking assembly for limiting movement of the button, the button is arranged on the top face of the shell, movement is limited through the braking assembly, and mistaken touch can be effectively prevented; and the pressing piece and the switch piece are matched to realize on-off control of electrical interlocking, so that normal operation of equipment is guaranteed, and the electric interlocking device has the advantages of simplicity in operation, convenience and rapidness.

Description

Technical Field

[0001] This utility model relates to the field of interlocking devices, and in particular to a mechanical and electrical interlocking device. Background Technology

[0002] In modern industrial automation and power system operation, mechanical and electrical interlocking devices play a crucial role. They ensure the safety and reliability of electrical and mechanical equipment during operation and prevent serious consequences such as equipment damage, production accidents, and personal injury caused by misoperation.

[0003] Traditional mechanical and electrical interlocking devices have significant shortcomings in their operation. Many devices use direct contact switches to perform opening and closing operations. These contact switches are directly exposed and face a great risk of accidental activation.

[0004] To address the issue of accidental activation, some mechanical and electrical interlocking devices have placed the contact switch inside the housing. However, while this improvement reduces the possibility of accidental activation to some extent, it introduces new problems: because the switch is hidden inside the housing, operation often requires multiple steps, such as opening a specific protective cover or disengaging additional locking devices, before the switch can be accessed and operated. This makes the operation process cumbersome and complicated, requiring operators to spend a lot of time to complete each operation.

[0005] Therefore, developing a mechanical and electrical interlocking device that can effectively prevent accidental activation while ensuring simple and efficient operation is of great practical significance. It will help improve production efficiency, ensure production safety, and promote the intelligent and efficient development of industrial production. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a mechanical and electrical interlocking device that can effectively avoid accidental activation and ensure simple and efficient operation.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A mechanical-electrical interlocking device includes a housing. A button is movably embedded in the top surface of the housing, and a horizontal plate is fixedly installed inside the housing. The bottom end of the button extends into the housing and is mounted on a telescopic rod via a snap-fit ​​assembly. The telescopic rod is movably mounted on the horizontal plate via a first spring, and a pressing element is installed at the bottom end of the telescopic rod. A switch element is movably mounted on the bottom surface of the inner cavity of the housing via an elastic element, and the switch element is correspondingly located below the pressing element. A braking assembly for restricting the movement of the button is also provided inside the housing. The braking assembly includes a movable rod, a second spring, and a braking plate. The movable rod is movably mounted on the side wall of the housing via the second spring, and a braking plate is fixedly installed at the end of the movable rod near the button. A braking groove is provided on the side wall of the button to be inserted and adapted to the braking plate.

[0009] Preferably, a pull ring is fixedly provided at the end of the movable rod that extends outside the housing.

[0010] Preferably, the snap fastener assembly includes a cylinder fixedly installed at the bottom of the button and a plug adapted to be inserted into the cylinder. The plug is fixedly installed on a horizontal plate, and a mounting post is fixedly provided on the top surface of the plug. A fixing member is fixedly provided at the top of the mounting post. The fixing member has an umbrella-shaped structure. A movable member is also movably installed on the mounting post between the fixing member and the plug. The movable member is composed of two conical truncated cones. A round rod is also installed on the side wall of the cylinder through a third spring. A limit block is fixedly installed at the end of the round rod that passes through the cylinder. The end face of the limit block has a wedge-shaped structure.

[0011] Preferably, multiple round rods are provided, and the multiple round rods are arranged in a ring array on the side wall of the insert.

[0012] Preferably, a return spring is also sleeved on the mounting post between the fixed part and the movable part.

[0013] Preferably, multiple telescopic rods are provided, and the multiple telescopic rods are arranged in a circular array and fixedly installed on the bottom surface of the insert.

[0014] Preferably, there are two brake grooves, and the distance between the two brake grooves is the same as the thickness of the fixing member.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) By setting the button on the top surface of the housing and restricting its movement through the braking component, this utility model can effectively prevent accidental touch. The combination of the snap fastener, telescopic rod and first spring provides a certain buffer and control for the button operation. The pressing component and the switching component work together to achieve electrical interlocking switch control, ensuring the normal operation of the equipment. It has the advantages of simple operation and convenience.

[0017] (2) The unique structural design of the snap button assembly of this utility model enables the button to have different strokes and states, realizing precise control over the contact and separation of the pressing part and the switching part, preventing accidental switching action caused by misoperation, and enhancing the safety and stability of the equipment.

[0018] (3) The reset spring of this utility model can help the moving part to quickly reset after the limit block slides out, ensuring the consistency and accuracy of each operation of the snap fastener assembly, preparing for the next operation, and further improving the stability of the equipment operation. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the mechanical and electrical interlocking device provided by this utility model;

[0020] Figure 2 for Figure 1 Internal structure diagram;

[0021] Figure 3 for Figure 2 Top view sectional view;

[0022] Figure 4 for Figure 2 A partial cross-sectional view;

[0023] Figure 5 for Figure 4 Enlarged view of section A;

[0024] The corresponding names of the attached figures are as follows: 1-outer shell, 2-button, 3-pull ring, 4-horizontal plate, 5-telescopic rod, 6-first spring, 7-pressing part, 8-switch part, 9-moving rod, 10-second spring, 11-brake plate, 12-brake groove, 13-insertion cylinder, 14-insertion post, 15-mounting post, 16-fixed part, 17-moving part, 18-third spring, 19-round rod, 20-limiting block, 21-reset spring. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0026] Example 1

[0027] like Figure 1-5 As shown, the mechanical and electrical interlocking device provided by this utility model includes a housing 1. A button 2 is movably embedded in the top surface of the housing 1, and a horizontal plate 4 is fixedly installed inside the housing 1. The bottom end of the button 2 extends into the interior of the housing 1 and is mounted on a telescopic rod 5 via a snap fastener assembly. The telescopic rod 5 is movably mounted on the horizontal plate 4 via a first spring 6, and a pressing element 7 is installed at the bottom end of the telescopic rod 5. A switch element 8 is movably arranged on the bottom surface of the inner cavity of the housing 1 via an elastic element, and the switch element 8 is correspondingly arranged below the pressing element 7. A braking assembly for restricting the movement of the button 2 is also provided inside the housing 1. The braking assembly includes a movable rod 9, a second spring 10, and a... The brake plate 11 and the movable rod 9 are movably mounted on the side wall of the housing 1 via the second spring 10. The brake plate 11 is fixedly installed at the end of the movable rod 9 near the button 2. The side wall of the button 2 has a brake groove 12 that is compatible with the brake plate 11. By setting the button 2 on the top surface of the housing 1 and restricting its movement through the brake assembly, accidental activation can be effectively prevented. The combination of the snap fastener assembly, the telescopic rod 5 and the first spring 6 provides a certain buffer and control for the operation of the button 2. The pressing part 7 and the switch part 8 cooperate to realize the electrical interlocking switch control, ensuring the normal operation of the equipment. It has the advantages of simple operation and convenience.

[0028] Example 2

[0029] Please see Figure 1 The end of the movable rod 9 that extends outside the outer shell 1 is also fixedly provided with a pull ring 3. The pull ring 3 makes it convenient for the operator to pull the movable rod 9 to release the lock between the brake plate 11 and the button 2, making the operation more convenient and labor-saving, and improving the operating efficiency.

[0030] Example 3

[0031] Please see Figure 4 and Figure 5 The snap-on assembly includes a cylinder 13 fixedly installed at the bottom of the button 2 and a plug 14 adapted to be inserted into the cylinder 13. The plug 14 is fixedly installed on the horizontal plate 4, and a mounting post 15 is fixedly provided on the top surface of the plug 14. A fixing member 16 is fixedly provided at the top of the mounting post 15. The fixing member 16 has an umbrella-shaped structure. A movable member 17 is also movably installed on the mounting post 15 between the fixing member 16 and the plug 14. The movable member 17 is composed of two conical truncated pyramids. A round rod 19 is also installed on the side wall of the cylinder 13 through a third spring 18. A limit block 20 is fixedly installed at the end of the round rod 19 that passes through the cylinder 13. The end face of the limit block 20 has a wedge-shaped structure. The unique structural design of the snap-on assembly allows the button 2 to be pressed with different strokes and states, realizing... Precise control of the contact and separation between the pressing element 7 and the switching element 8 prevents accidental switching actions caused by misoperation, enhancing the safety and stability of the equipment. Specifically, when button 2 is pressed for the first time, the insert 13 moves downward, and the limiting block 20 on the round rod 19 moves towards the insert post 14 under the action of the third spring 18, sliding between the fixed part 16 and the movable part 17, causing the pressing element 7 to move downward and contact the switching element 8, thus opening the electrical interlock. When button 2 is pressed again, and the second pressing depth is greater than the first, the limiting block 20 first slides to below the movable part 17, pushing the movable part 17 upward to coincide with the fixed part 16. Then, the limiting block 20 slides out from the movable part 17 and the fixed part 16. Under the action of the second spring 10, the pressing element 7 moves upward and separates from the switching element 8, thus closing the electrical interlock.

[0032] Example 4

[0033] Please see Figure 2 and Figure 4 Multiple round rods 19 are provided, and the multiple round rods 19 are arranged in a ring array on the side wall of the insert 13. The multiple round rods 19 arranged in a ring array can make the control of the limiting block 20 on the insert 13 more stable and balanced, ensure that the snap fastener assembly is subjected to uniform force at different positions, and improve the reliability and durability of the snap fastener assembly.

[0034] Example 5

[0035] Please see Figure 5A reset spring 21 is also sleeved on the mounting post 15 between the fixed part 16 and the movable part 17. The reset spring 21 can assist the movable part 17 to quickly reset after the limit block 20 slides out, ensuring the consistency and accuracy of each operation of the snap assembly, preparing for the next operation, and further improving the stability of the equipment operation.

[0036] Example 6

[0037] Please see Figure 2 Multiple telescopic rods 5 are provided, arranged in a circular array and fixedly installed on the bottom surface of the insert 13. The multiple telescopic rods 5 arranged in a circular array can evenly transmit the pressure of the button 2, ensuring that the pressing part 7 can smoothly contact and separate from the switch part 8, avoiding poor contact or operation errors caused by uneven force, and improving the reliability of the equipment.

[0038] Example 7

[0039] Please see Figure 2 The brake groove 12 is provided in two parts, and the distance between the two brake grooves 12 is the same as the thickness of the fixing member 16. The matching design between the two brake grooves 12 and the thickness of the fixing member 16 can accurately control the opening and closing state of the electrical interlock, prevent accidental switching action caused by accidental touch, and further improve the safety and stability of the equipment.

[0040] Working principle:

[0041] Under normal circumstances, the brake plate 11 is inserted into the brake groove 12 of the button 2 to prevent the button 2 from being accidentally activated. When operation is required, pulling the pull ring 3 causes the movable rod 9 to move outward against the elastic force of the second spring 10, and the brake plate 11 disengages from the brake groove 12. At this time, the button 2 can be pressed. When the button 2 is pressed for the first time, the insert 13 moves downward, and the limiting block 20 on the round rod 19 moves towards the insert post 14 under the action of the third spring 18, sliding between the fixed part 16 and the movable part 17, causing the pressing part 7 to move downward and contact the switch part 8, realizing the opening of the electrical interlock. When the button 2 is pressed again, and the second pressing depth is greater than the first, the limiting block 20 first slides to below the movable part 17, pushing the movable part 17 to move upward and overlap with the fixed part 16. Then the limiting block 20 slides out from the movable part 17 and the fixed part 16. Under the action of the second spring 10, the pressing part 7 moves upward and separates from the switch part 8, and the electrical interlock is closed. After the operation is completed, release the pull ring 3, the movable rod 9 returns to its original position under the action of the second spring 10, the brake plate 11 is reinserted into the brake groove 12, and the locking button 2 is engaged.

[0042] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A mechanical and electrical interlocking device, comprising a housing (1), characterized in that, A button (2) is movably embedded on the top surface of the outer shell (1), and a horizontal plate (4) is fixedly installed inside the outer shell (1). The bottom end of the button (2) extends into the interior of the outer shell (1) and a telescopic rod (5) is installed through a snap fastener assembly. The telescopic rod (5) is movably installed on the horizontal plate (4) through a first spring (6), and a pressing member (7) is installed at the bottom end of the telescopic rod (5). A switch member (8) is movably installed on the bottom surface of the inner cavity of the outer shell (1) through an elastic member. The switch member (8) is correspondingly installed below the pressing member (7). A braking assembly for restricting the movement of the button (2) is also provided inside the outer shell (1). The braking assembly includes a movable rod (9), a second spring (10), and a brake plate (11). The movable rod (9) is movably installed on the side wall of the outer shell (1) through the second spring (10), and a brake plate (11) is fixedly installed at the end of the movable rod (9) near the button (2). A brake groove (12) is opened on the side wall of the button (2) to be inserted and adapted to the brake plate (11).

2. The mechanical and electrical interlocking device according to claim 1, characterized in that, The end of the movable rod (9) that extends outside the outer shell (1) is also fixedly provided with a pull ring (3).

3. The mechanical and electrical interlocking device according to claim 1, characterized in that, The snap fastener assembly includes a tube (13) fixedly installed at the bottom of the button (2) and a plug (14) that is compatible with the tube (13). The plug (14) is fixedly installed on the horizontal plate (4), and a mounting post (15) is fixedly provided on the top surface of the plug (14). A fixing member (16) is fixedly provided at the top of the mounting post (15). The fixing member (16) has an umbrella-shaped structure. A movable member (17) is also movably installed on the mounting post (15) between the fixing member (16) and the plug (14). The movable member (17) is formed by splicing two conical pedestals. A round rod (19) is also installed on the side wall of the tube (13) through a third spring (18). A limit block (20) is fixedly installed at the end of the round rod (19) that passes through the tube (13). The end face of the limit block (20) has a wedge-shaped structure.

4. The mechanical and electrical interlocking device according to claim 3, characterized in that, Multiple round rods (19) are provided, and the multiple round rods (19) are arranged in a ring array on the side wall of the insert (13).

5. A mechanical and electrical interlocking device according to claim 3, characterized in that, A return spring (21) is also fitted on the mounting post (15) between the fixed part (16) and the movable part (17).

6. A mechanical and electrical interlocking device according to claim 3, characterized in that, Multiple telescopic rods (5) are provided, and the multiple telescopic rods (5) are arranged in a ring array and fixedly installed on the bottom surface of the insert (13).

7. A mechanical and electrical interlocking device according to claim 3, characterized in that, There are two brake grooves (12), and the distance between the two brake grooves (12) is the same as the thickness of the fixing member (16).

Images