Emergency stop knob without torsion spring

Abstract

The utility model relates to a kind of emergency stop button without torsion spring, it includes emergency stop head and movable shaft, emergency stop spring one is placed into emergency stop head from rear side, movable shaft rear side is loaded into emergency stop head, the protrusion on the clamping groove of emergency stop head and movable shaft will emergency stop spring certain location, emergency stop spring two is loaded into movable shaft from rear side, emergency stop ball is loaded into movable shaft from rear side, sleeve is sleeved on the outside of movable shaft, sleeve is connected with emergency stop head, the rear end of sleeve is loaded with emergency stop pressure block, then the emergency stop pressure block is fixed with sleeve end by self-tapping, rubber washer is loaded on the external thread of sleeve end, and fastening ring is fixed rubber washer in sleeve end. The utility model needs only directly to put into when assembling, avoids the inconvenience of original torsion spring installation, improves production efficiency, reduces product cost, while using emergency stop head protrusion and sleeve internal slope feature to increase the anti-rotation function of initial position, also increase the security of overall mechanism.

Description

Technical Field

[0001] This utility model relates to an emergency stop button that does not contain a torsion spring. Background Technology

[0002] An emergency stop button is a tooling device that, when pressed in an emergency, quickly stops the equipment to protect personnel and the equipment. After the emergency stop button is pressed, the button is locked, the equipment stops, and after the emergency has been resolved, the emergency stop head can be rotated to release it and restart the equipment.

[0003] Emergency stop buttons on the market typically use a torsion spring to achieve their clockwise reset function after being pressed. This type of torsion spring is cumbersome to assemble; one side of the spring must be inserted into the hole, then rotated to a certain angle before pressing. The assembly process is tedious and complex, and cannot be automated. Furthermore, conventional emergency stop button heads can also rotate from their initial position, posing a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide an emergency stop button that directly uses a compression spring instead of a torsion spring, which simplifies assembly, improves work efficiency, and enables automated assembly. The torsion spring for emergency stop is more complex to manufacture and more expensive than the compression spring. Replacing the torsion spring with a compression spring can reduce costs. In addition, the added feature prevents the emergency stop button from rotating in the initial position, increases the anti-accidental activation function, and improves the safety of the emergency stop button.

[0005] The purpose of this utility model is achieved as follows: An emergency stop button without a torsion spring includes an emergency stop head and a movable shaft. An emergency stop spring 1 is inserted into the emergency stop head from the rear. The emergency stop head is installed into the rear of the movable shaft. The slot of the emergency stop head and the boss on the movable shaft position the emergency stop spring 1. An emergency stop spring 2 is installed into the movable shaft from the rear. An emergency stop ball is installed into the movable shaft from the rear. A sleeve is fitted over the outside of the movable shaft. The sleeve is connected to the emergency stop head. An emergency stop pressure block is installed at the rear end of the sleeve. The emergency stop pressure block is then fixed to the end of the sleeve by a self-tapping screw. A rubber washer is installed on the external thread of the end of the sleeve. A fastening ring fixes the rubber washer to the end of the sleeve.

[0006] The sleeve is connected to the thread on the inner side of the rear end of the emergency stop head via the thread at the front end.

[0007] The emergency stop block covers the end of the sleeve.

[0008] The beneficial effects of this utility model are: This type of emergency stop button, which does not require a torsion spring, only requires the compression spring to be inserted directly during assembly, avoiding the inconvenience of installing the original torsion spring, improving production efficiency, reducing product costs, and at the same time, utilizing the boss of the emergency stop head and the inclined surface features inside the sleeve to increase the anti-rotation function of the initial position, which also increases the safety of the overall mechanism. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the emergency stop button of this utility model without a torsion spring.

[0010] Figure 2 for Figure 1 Exploded view.

[0011] Figure 3 This is a cross-sectional view of the emergency stop button in its initial position.

[0012] Figure 4 This is a cross-sectional view of the locked position after the emergency stop button is pressed down.

[0013] Figure 5 This is a schematic diagram of the initial position for an emergency stop.

[0014] Figure 6 This is a schematic diagram of the position after being pressed down.

[0015] Figure 7 This is a schematic diagram of rotational reset.

[0016] In the diagram: 1. Emergency stop head; 2. Movable shaft; 3. Emergency stop spring; 4. Emergency stop ball; 5. Emergency stop spring II; 6. Emergency stop sleeve; 7. Rubber washer; 8. Fastening ring; 9. Emergency stop pressure block; 10. Self-tapping screw. Detailed Implementation

[0017] See Figures 1 to 7 This utility model relates to an emergency stop button without a torsion spring. It includes an emergency stop head 1 and a movable shaft 2. An emergency stop spring 3 is inserted into the emergency stop head 1 from the rear. The movable shaft 2 is then inserted into the emergency stop head 1 from the rear. The slot on the emergency stop head 1 and the boss on the movable shaft 2 position the emergency stop spring 3. After the emergency stop spring 3 is fixed, an emergency stop spring 5 is inserted into the movable shaft 2 from the rear. Then, an emergency stop ball 4 is inserted into the movable shaft 2 from the rear. A sleeve 6 is fitted onto the outside of the movable shaft 2. The sleeve 6 is connected to the thread on the inner side of the rear end of the emergency stop head 1 through the thread at the front end. An emergency stop block 9 is installed at the rear end of the sleeve 6. The diameter of the emergency stop block 9 is similar to that of the end of the sleeve 6, which can just cover the end of the sleeve. The emergency stop block 9 is then fixed to the end of the sleeve 6 by a self-tapping screw 10. Finally, a rubber washer 7 is installed on the external thread at the end of the sleeve 6, and then it is fixed with a fastening ring 8. This completes the installation of the entire emergency stop button.

[0018] The principle of this emergency stop button without a torsion spring is as follows: After assembly, the boss of the emergency stop head is locked in the groove of the sleeve and cannot rotate left or right. When the emergency stop head is pressed, the movable shaft moves downwards, and the emergency stop ball slides down the inclined surface of the boss inside the sleeve under the action of the spring force, eventually fixing itself below the boss of the sleeve. When returning, rotating the emergency stop head to the right to a certain angle causes the emergency stop slider to disengage from the boss restriction on the inner wall of the sleeve and begin to retract. The boss of the emergency stop head passes through the inclined surface inside the emergency stop sleeve and, under the action of the compression spring, returns to its original position. This maintains the process of pressing, rotating, and resetting.

Claims

1. An emergency stop button without a torsion spring, characterized in that: It includes an emergency stop head and a movable shaft. An emergency stop spring 1 is inserted into the emergency stop head from the rear. The emergency stop head is installed into the rear of the movable shaft. The slot on the emergency stop head and the boss on the movable shaft position the emergency stop spring 1. An emergency stop spring 2 is installed into the movable shaft from the rear. An emergency stop ball is installed into the movable shaft from the rear. A sleeve is fitted over the outside of the movable shaft. The sleeve is connected to the emergency stop head. An emergency stop pressure block is installed at the rear end of the sleeve. The emergency stop pressure block is then fixed to the end of the sleeve by a self-tapping screw. A rubber washer is installed on the external thread at the end of the sleeve. A fastening ring fixes the rubber washer to the end of the sleeve.

2. The emergency stop button without a torsion spring according to claim 1, characterized in that: The sleeve is connected to the thread on the inner side of the rear end of the emergency stop head via the thread at the front end.

3. The emergency stop button without a torsion spring according to claim 1, characterized in that: The emergency stop block covers the end of the sleeve.

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