Push type lever emergency unlocking device

Abstract

The utility model discloses a pressing type lever emergency unlocking device which comprises a product body shell, a pressing part, a lever and reset part, a safety interlocking installation piece and a lock rod, the lever and the reset part are both installed in the product body shell, and the pressing part is fixed to the safety interlocking installation piece through a screw penetrating through a flange sleeve. The device has a pure mechanical structure, is simple to assemble and operate, is stable and reliable, and has wide practicability; the length of the pressing rod can be modified according to actual working conditions so as to meet complex working conditions; processing is simple, and cost is low; a self-resetting function is realized; and the swing arm structure can realize a large-amplitude movement stroke by using a small structural space. According to the emergency unlocking device, pressing type emergency unlocking is adopted, the operation habit of personnel in an emergency state is met, the emergency unlocking device is a self-reset type emergency unlocking device, after pressing, the personnel evacuate, the device does not need to be operated again, reset can be achieved, operation can be effectively simplified, the service life of operation can be effectively prolonged, and the reliability of emergency unlocking of safety interlocking is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of emergency unlocking of safety interlocks, and in particular to a press-type lever emergency unlocking device. Background Technology

[0002] The emergency unlocking function in safety interlock products is related to personnel safety and the rapid safe evacuation of personnel in dangerous situations. However, existing safety interlock products have the following problems and defects: the safety interlocks on the market currently have problems such as no emergency unlocking, rotary emergency unlocking, the need for additional tools to unlock, and unstable unlocking. They are complicated to operate, have poor reliability, and cannot meet the needs of complex working conditions. Utility Model Content

[0003] The purpose of this invention is to provide a press-type lever emergency unlocking device to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An emergency unlocking device with a push-button lever includes a product body shell, a pressing part, a lever and a reset part. The safety interlock mounting component, locking rod, lever and reset part are all installed inside the product body shell. The pressing part is fixed to the safety interlock mounting component by screws passing through the flange sleeve.

[0006] The pressing part includes a button, a pressing rod, a flange sleeve, and a waterproof ring for the pressing rod. The button is externally threaded to one end of the pressing rod. The waterproof ring for the pressing rod is installed on the side of the pressing rod away from the button, and the flange sleeve is installed externally.

[0007] The lever and reset part includes a pressing block, a reset spring, and a swing arm. The swing arm is flexibly connected to the pressing block via a moving pin. The reset spring is installed inside the safety interlock mounting component and has a safety interlock waterproof ring on its outer side. The connected swing arm and pressing block are installed inside the safety interlock mounting component via the center of the reset spring using a moving pin. The swing arm and locking rod are positioned correspondingly. The safety interlock mounting component is flexibly connected to the installed swing arm via a fixing pin. The spring cover is threadedly connected to the safety interlock mounting component.

[0008] Compared with existing technologies, this utility model has the following advantages: It features a purely mechanical structure, simple assembly and operation, stability and reliability, and wide applicability; the length of the pressing rod can be modified according to actual working conditions to meet complex requirements; it is simple to process and low in cost; it has a self-resetting function; and the swing arm structure allows for a large range of motion within a small structural space. This utility model is a press-type emergency unlocking device, conforming to the operating habits of personnel in emergency situations. It solves the problems of existing safety interlocks lacking emergency unlocking, requiring additional tools for unlocking, and having unstable unlocking mechanisms. This utility model is a self-resetting emergency unlocking device; after pressing and personnel evacuate, the device can be reset without further operation, effectively simplifying operation, increasing operational lifespan, and significantly improving the reliability of emergency unlocking of safety interlocks. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the assembly structure of this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the present invention in the unpressed state;

[0012] Figure 4 This is a schematic cross-sectional view of the present invention.

[0013] Figure 5 This is a schematic diagram of the assembly cross-sectional structure of this utility model;

[0014] Figure 6 This is a schematic diagram of the structure of the present invention in the pressed-unlocked state;

[0015] Figure 7 This is a schematic diagram of the pressing part of this utility model;

[0016] In the diagram: 1. Button, 2. Press lever, 3. Flange sleeve, 4. Spring cover, 5. Safety interlock waterproof ring, 6. Press block, 7. Return spring, 8. Swing arm, 9. Moving pin, 10. Fixing pin, 11. Safety interlock mounting part, 12. Locking rod, 13. Screw, 14. Press lever waterproof ring. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] An emergency unlocking device with a push-button lever is mainly divided into the following three parts: a pressing part, a product body shell, and a lever and a reset part; wherein the pressing part consists of a button 1, a pressing rod 2, a flange sleeve 3, a screw 13, and a pressing rod waterproof ring 14, and the pressing part is the part that provides the pressing medium for the operator.

[0019] The product's outer shell consists of a safety interlock waterproof ring 5, a safety interlock mounting component 11, and a locking rod 12. The outer shell is designed to protect the safety interlock mechanism from external damage.

[0020] The lever and reset part consists of a spring cover 4, a pressing block 6, a reset spring 7, a swing arm 8, a moving pin 9, and a fixed pin 10. The lever and reset part converts the axial pressing force transmitted from the pressing part into a horizontal thrust perpendicular to the pressing direction through the moving pin 9 and the fixed pin 10, and applies it to the locking rod 12 by the swing arm 8, thereby pushing the locking rod backward to achieve the purpose of safety interlocking emergency stop and unlocking.

[0021] Product body shell assembly process: First, ensure that the safety interlock mounting parts 11 and locking rod 12 have been correctly assembled in the safety interlock product.

[0022] Assembly process of the pressing part: First, install the waterproof ring 14 of the pressing rod onto the pressing rod 2. Then, install the assembled waterproof ring 14 of the pressing rod and the pressing rod 2 into the flange sleeve 3. Finally, screw the button 1 onto the external thread of the pressing rod 2.

[0023] Assembly process of lever and reset part: First, connect the swing arm 8 and the pressing block 6 flexibly with the moving pin 9. Then, install the reset spring 7 into the safety interlock mounting part 11. Next, install the connected swing arm 8 and pressing block 6 into the safety interlock mounting part 11 through the center of the reset spring 7 with the moving pin 9 and press down by hand. Then, use the fixing pin 10 to flexibly connect the safety interlock mounting part 11 and the installed swing arm 8. Finally, screw the spring 4 cover onto the internal thread of the safety interlock mounting part 11.

[0024] The assembly process of this utility model patent is as follows: First, ensure that the pressing part, the product body shell, the lever and the reset part have been assembled independently. Then, install the lever and the reset part into the product body shell. Finally, fix the pressing part to the product body shell safety interlock mounting part 11 with screws 13 through the flange sleeve 3.

[0025] The operation steps of this utility model are as follows: When button 1 is pressed, the pressing rod 2 transmits the pressing force to the pressing block 6, which counteracts the elastic force of the return spring 7. Through the action of the moving pin 9 and the fixed pin 10, the pressing force is converted and the swing arm 8 swings around the fixed pin 10. The moving pin 9 moves in the groove of the swing arm 8, thereby controlling the swing direction and swing amplitude of the swing arm 8. The movement of the swing arm 8 will push the locking rod 12 to move, so as to realize the emergency stop and unlocking of the safety interlock. When the pressing force is removed, the elastic force of the return spring 7 will spread out the pressing block 6 and push the pressing part to reset, restoring it to the state before pressing. The safety interlock waterproof ring 5 and the pressing rod waterproof ring 14 play a waterproof role.

[0026] This invention employs a simple, purely mechanical structure. Vertical pressing force and linear motion are converted into horizontal linear motion perpendicular to the pressing direction through a simple lever principle. This pushes the locking lever of the safety interlock. In an emergency, pressing the button on this invention changes the safety interlock from an extended latch to a retracted latch, thus stopping and unlocking the safety interlock during operation. This allows for the safe and rapid evacuation of personnel in an emergency. This invention is a self-resetting emergency unlocking device; after pressing, the mechanical device resets to its state before pressing, and the safety interlock operation conditions are met after confirmation.

[0027] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A push-button lever emergency unlocking device, characterized in that, The product includes a shell, a pressing part, a lever and a reset part. The safety interlock mounting part (11), the locking rod (12), the lever and the reset part are all installed inside the shell. The pressing part is fixed to the safety interlock mounting part (11) by screws (13) passing through the flange sleeve (3). The lever and reset part includes a pressing block (6), a reset spring (7) and a swing arm (8). The swing arm (8) is flexibly connected to the pressing block (6) by a moving pin (9). The reset spring (7) is installed inside the safety interlock mounting part (11) and is provided with a safety interlock waterproof ring (5) on the outside. The connected swing arm (8) and pressing block (6) are installed inside the safety interlock mounting part (11) by the moving pin (9) through the center of the reset spring (7). The swing arm (8) and the locking rod (12) are positioned correspondingly. The safety interlock mounting part (11) is flexibly connected to the installed swing arm (8) by a fixing pin (10). The spring cover (4) is threadedly connected to the safety interlock mounting part (11).

2. The emergency unlocking device with a push-button lever as described in claim 1, characterized in that, The pressing part includes a button (1), a pressing rod (2), a flange sleeve (3), and a pressing rod waterproof ring (14). The button (1) is externally threaded to one end of the pressing rod (2). The pressing rod waterproof ring (14) is installed on the side of the pressing rod (2) away from the button (1), and the flange sleeve (3) is installed externally.

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