A structure of a choke-preventing device

By installing a sealing ring at the top of the piston rod of the choking prevention emergency device and adding a fixing frame and cover to the trigger button, the problems of long structure and false triggering in the existing technology are solved, achieving miniaturization and improved safety.

CN224505540UActive Publication Date: 2026-07-17ZHENLAOZU HEALTH TECHNOLOGY (SHANDONG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENLAOZU HEALTH TECHNOLOGY (SHANDONG) CO LTD
Filing Date
2025-03-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing spring-energy storage choking rescue devices have a long structure due to the sealing ring being located on the bottom side of the piston rod flange, making it difficult to achieve miniaturization and posing a safety hazard of accidental triggering.

Method used

The sealing ring is installed on the outer top of the piston rod, and a fixing frame and cover are installed at the trigger button. The stability of the sealing ring is improved by the limiting ring and the limiting groove. The sealing ring made of rubber fits against the inner wall of the main cylinder, so as to achieve rapid negative pressure supply and structural miniaturization, while preventing accidental triggering.

Benefits of technology

It achieves both the negative pressure effect and a miniaturized structure, while also improving safety and preventing accidental triggering.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224505540U_ABST
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Abstract

The utility model provides a kind of anti-choking instrument structure, including main cylinder, the top of main cylinder is provided with connecting pipe, the inside of main cylinder is slidably installed with piston rod and the spring energy storage mechanism for driving piston rod movement, the bottom end side of main cylinder is installed with trigger button, trigger button is used to unlock spring energy storage mechanism, the top end outside of piston rod is provided with connecting groove, and sealing ring is installed by connecting groove, the outside wall of sealing ring is attached with the inside wall of main cylinder;The middle part of piston rod close to connecting groove is provided with limit ring, and the inside of sealing ring is provided with the limit slot that is engaged with limit ring.
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Claims

1. A choking-prevention device structure, comprising a main cylinder (1), a connecting pipe (2) is arranged at the top of the main cylinder (1), a piston rod (6) and a spring energy storage mechanism for driving the piston rod (6) to move are slidingly installed in the inside of the main cylinder (1), a trigger button (3) is installed at one side of the bottom end of the main cylinder (1), and the trigger button (3) is used for unlocking the spring energy storage mechanism, characterized in that: The piston rod (6) has a connecting groove (601) on its outer side at the top end, and a sealing ring (7) is installed through the connecting groove (601). The outer side wall of the sealing ring (7) is in contact with the inner side wall of the main cylinder (1). The piston rod (6) has a limiting ring (602) in the middle near the connecting groove (601), and the inner side of the sealing ring (7) has a limiting groove (701) that engages with the limiting ring (602).

2. The structure of choke prevention device according to claim 1, wherein: The outer circumferential surface of the sealing ring (7) is concave arc-shaped, and the upper and lower ends of the arc-shaped surface are in contact with the inner sidewall of the main cylinder (1).

3. The anti-choking device according to claim 1, wherein: The sealing ring (7) is made of rubber.

4. The anti-choking device of claim 1, wherein: The main cylinder (1) has a fixed frame (5) installed near the installation location of the trigger button (3), and a cover (4) for blocking the trigger button (3) is slidably installed inside the fixed frame (5).

5. The anti-choking device according to claim 4, wherein: The fixed frame (5) has sliding grooves on both the left and right sides inside, and the cover (4) has sliders that are slidably connected to the sliding grooves on both the left and right sides; the cover (4) has anti-slip ridges on the outside.