Protection device for preventing filling hose from being broken

By designing protective devices on the filling hose and using mounting plates and elastic connectors to buffer external forces, the problem of filling hose breakage due to misoperation is solved, thereby improving safety and preventing high-pressure gas leakage and explosion risks.

CN223924510UActive Publication Date: 2026-02-17HEBEI XINGUO HYDROGEN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520417869.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-02-17
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing filling hoses are prone to breakage due to misoperation during filling, leading to high-pressure gas leakage and posing a safety hazard, especially in flammable and explosive environments where they may cause combustion and explosion.

Method used

A protective device for preventing filling hose breakage was designed. The filling hose is fixed by two mounting plates and elastic connectors. The cooperation of the first and second protective cylinders buffers external forces and prevents the filling hose from being pulled and broken. A high-strength elastic rope or spring is used as an elastic connector to provide reaction force protection.

Benefits of technology

It effectively prevents the filling hose from breaking under external force, reduces the risk of high-pressure gas leakage, reduces the risk of combustion and explosion in flammable and explosive environments, and improves the safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protection device for preventing a filling hose from being broken, which belongs to the technical field of bottled gas filling and comprises two mounting plates, the two mounting plates are connected together through a plurality of elastic connecting pieces, and fixing assemblies are arranged on the sides, away from each other, of the two mounting plates. A first protection cylinder and a second protection cylinder are arranged on the sides, close to each other, of the two mounting plates correspondingly, and one end of the second protection cylinder is arranged in the first protection cylinder. The filling hose body is fixed through the two fixing assemblies, so that the filling hose body is bent in the first protection cylinder and the second protection cylinder; when the filling hose body is pulled by external force, the bent position of the filling hose body is unfolded to drive the two mounting plates to move in the direction away from each other, the filling hose body can be buffered through the counter-acting force generated by the elastic connecting piece, and the situation that leakage is caused due to the fact that the filling hose body is pulled and broken is prevented; and the phenomenon of burning explosion of combustible gas is not easily caused, and potential safety hazards in use are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of bottled gas filling technology, and in particular to a protective device to prevent the filling hose from breaking. Background Technology

[0002] Bottled gas requires the use of metal filling hoses during the filling process. Existing filling hoses have only undergone pressure resistance and airtightness tests on the hose walls, and their ability to resist breakage is inadequate. If personnel mishandle the process during filling and move the bottled gas without removing the hose, the filling hose is very likely to break, causing high-pressure gas leakage. This can result in the hose swinging wildly and injuring people. Furthermore, in flammable and explosive environments, the presence of sparks or static electricity can easily cause flammable gas to ignite and explode, posing a significant safety hazard. Utility Model Content

[0003] The purpose of this invention is to provide a protective device to prevent the filling hose from breaking. This addresses the problem that during the filling process, due to misoperation, the bottled gas is moved without being removed, causing the filling hose to break and leak high-pressure gas inside. This can lead to the hose swinging wildly and injuring people. In flammable and explosive environments, it can also cause flammable gas to explode, posing a significant safety hazard.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a protective device for preventing the breakage of a filling hose, comprising two mounting plates. The mounting plates have a through hole at their center for the filling hose body to pass through. The two mounting plates are connected together by several elastic connectors. A fixing component is provided on the side of the two mounting plates that are far apart from each other. A first protective cylinder and a second protective cylinder are respectively provided on the side of the two mounting plates that are close to each other, and one end of the second protective cylinder is located inside the first protective cylinder.

[0006] Furthermore, the fixing component includes a support frame, which is connected to the mounting plate via a connecting plate. Adjustable arms are movably arranged on the front and rear sides of the support frame, with two adjustable arms arranged symmetrically. A movable frame is provided between the two adjustable arms. A first adjusting screw is provided on the top surface of the movable frame and is threadedly connected to the support frame. A first fixing block is provided at the bottom of the movable frame, and a second adjusting screw is threadedly connected to the first fixing block. A second fixing block is provided at the bottom of each of the two adjustable arms, and a third adjusting screw is threadedly connected to the second fixing block.

[0007] Furthermore, the movable frame is provided with connecting rods at both the front and rear ends, and the adjusting arm is provided with through grooves that match the connecting rods.

[0008] Furthermore, the filling hose body is provided with a hose clamp, and the second adjusting screw and the third adjusting screw are pressed against the hose clamp.

[0009] Furthermore, a first protective sleeve is provided on the mounting plate located on the left side, and a second protective sleeve is provided on the mounting plate located on the right side.

[0010] Furthermore, the inner diameter of the first protective cylinder is larger than the outer diameter of the second protective cylinder.

[0011] Furthermore, the elastic connector is configured as a high-strength elastic rope.

[0012] Furthermore, the elastic connector is configured as a spring.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This invention uses two fixing components to secure the filling hose body, causing the filling hose body to bend under the first and second protective sleeves. The first and second protective sleeves protect the bent portion of the filling hose body. When the filling hose body is pulled by an external force, the bent portion of the filling hose body will unfold, releasing a small section of length, and causing the two mounting plates to move away from each other. The second protective sleeve moves outward from inside the first protective sleeve. The reaction force generated by the elastic connector causes the two mounting plates to move closer together and cause the filling hose body to bend. This buffers the filling hose body, preventing it from being pulled and broken, thus preventing leakage and reducing the risk of flammable gas explosion, thereby reducing safety hazards. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front view of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the fixing component of this utility model;

[0019] Figure 4 This is a front view of Embodiment 2 of the present invention;

[0020] Figure 5 This is a cross-sectional view of Embodiment 2 of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 1-1. Through hole; 2. Elastic connector; 3. Fixing assembly; 3-1. Support frame; 3-2. Adjusting arm; 3-2-1. Through groove; 3-3. Movable frame; 3-4. First adjusting screw; 3-5. First fixing block; 3-6. Second adjusting screw; 3-7. Second fixing block; 3-8. Third adjusting screw; 3-9. Connecting rod; 4. First protective cylinder; 5. Second protective cylinder; 6. Hose clamp; 7. Filling hose body; 8. Connecting plate. Detailed Implementation

[0022] Example 1

[0023] like Figure 1-3 As shown, a protective device for preventing the breakage of a filling hose includes two mounting plates 1. A through hole 1-1 is provided at the center of each mounting plate 1, allowing the filling hose body 7 to pass through. The size of the through hole 1-1 is larger than the size of the filling hose body 7, allowing the filling hose body 7 to pass through the through hole 1-1. The two mounting plates 1 are connected together by several elastic connectors 2, which are evenly distributed circumferentially. The elastic connectors 2 are configured as high-strength elastic ropes. A fixing assembly 3 is connected to the side of the two mounting plates 1 that is far apart from each other via a connecting plate 8. A first protective cylinder 4 and a second protective cylinder 5 are respectively connected to the side of the two mounting plates 1 that are close to each other. The first protective cylinder 4 is connected to the mounting plate 1 on the left, and the second protective cylinder 5 is connected to the mounting plate 1 on the right. The inner diameter of the first protective cylinder 4 is larger than the outer diameter of the second protective cylinder 5, and the left end of the second protective cylinder 5 is inserted into the interior of the first protective cylinder 4.

[0024] like Figure 3 As shown, the fixing component 3 includes a support frame 3-1, which is connected to the mounting plate 1 via a connecting plate 8. Adjusting arms 3-2 are movably hinged to the front and rear sides of the support frame 3-1, and the two adjusting arms 3-2 are symmetrically arranged. A movable frame 3-3 is movably connected between the two adjusting arms 3-2. Connecting rods 3-9 are connected to the front and rear ends of the movable frame 3-3. The adjusting arms 3-2 are provided with through grooves 3-2-1 that match the connecting rods 3-9, and the connecting rods 3-9 extend along the through grooves 3-2-1. The movable frame 3-3 is connected to a first adjusting screw 3-4 on its top surface. The first adjusting screw 3-4 is threadedly connected to the support frame 3-1 and extends above the support frame 3-1. The movable frame 3-3 is connected to a first fixing block 3-5 at its bottom. A second adjusting screw 3-6 is threadedly connected to the first fixing block 3-5. The bottoms of the two adjusting arms 3-2 are each connected to a second fixing block 3-7. A third adjusting screw 3-8 is threadedly connected to the second fixing block 3-7.

[0025] A hose clamp 6 is installed on the filling hose body 7, and the second adjusting screw 3-6 and the third adjusting screw 3-8 are pressed against the hose clamp 6.

[0026] In use, rotate the first adjusting screw 3-4, which drives the movable frame 3-3 to move downward, and the two adjusting arms 3-2 move closer to each other, initially clamping the filling hose body 7. Then, rotate the second adjusting screw 3-6 and the third adjusting screw 3-8, so that the second adjusting screw 3-6 and the third adjusting screw 3-8 press against the hose clamp 6, thereby fixing the position of the filling hose body 7.

[0027] The usage process of this utility model is as follows:

[0028] First, one end of the filling hose body 7 is fixed using one of the fixing components 3. Then, the filling hose body 7 is inserted into the first protective cylinder 4 and the second protective cylinder 5, so that the filling hose body 7 is bent in the first protective cylinder 4 and the second protective cylinder 5. The other end of the filling hose body 7 is fixed by another fixing component 3.

[0029] When the filling hose body 7 is pulled by an external force, the bent part of the filling hose body 7 will unfold, releasing a small section of length, and causing the two mounting plates 1 to move away from each other. The second protective cylinder 5 moves outward from inside the first protective cylinder 4. The reaction force generated by the elastic connector 2 causes the two mounting plates 1 to move closer to each other and causes the filling hose body 7 to bend. This can buffer the filling hose body 7, prevent the filling hose body 7 from being pulled and broken, and improve safety.

[0030] Example 2

[0031] like Figure 4-5 As shown, this embodiment is an improvement on the first embodiment. The elastic connector 2 is set as a spring. The characteristics of the spring are used to buffer the filling hose body 7 when it is pulled by external force, so as to prevent the filling hose body 7 from being pulled and broken, thus improving safety.

[0032] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A protection device for preventing breakage of a filling hose, characterized in that: The utility model provides a kind of filling hose body, including two installation plates (1), the central position of the installation plate (1) is provided with the through hole (1-1) that filling hose body (7) can pass through, two the installation plate (1) is connected together by several elastic connectors (2), the side of two the installation plate (1) away from each other is provided with fixed assembly (3), the side of two the installation plate (1) close to each other is respectively provided with first protective cylinder (4), second protective cylinder (5), and one end of the second protective cylinder (5) is arranged in the inside of the first protective cylinder (4).

2. A protection device against breakage of a filling hose according to claim 1, characterized in that: The fixed assembly (3) includes a support frame (3-1) connected to the installation plate (1) by a connecting plate (8), the support frame (3-1) has two adjustable arms (3-2) movably arranged on the front and back sides, the two adjustable arms (3-2) are symmetrically arranged, an activity frame (3-3) is arranged between the two adjustable arms (3-2), the top surface of the activity frame (3-3) is provided with a first adjusting screw (3-4) threadedly connected to the support frame (3-1), the bottom of the activity frame (3-3) is provided with a first fixing block (3-5), the first fixing block (3-5) is threadedly connected with a second adjusting screw (3-6), the bottom of each of the two adjustable arms (3-2) is provided with a second fixing block (3-7), the second fixing block (3-7) is threadedly connected with a third adjusting screw (3-8).

3. A protection device against breakage of a filling hose according to claim 2, characterized in that: The front and back ends of the activity frame (3-3) are provided with connecting rods (3-9), and the adjustable arms (3-2) are provided with through grooves (3-2-1) matched with the connecting rods (3-9).

4. The protector against breakage of a filling hose according to claim 2, characterized in that: The filling hose body (7) is provided with a hose clamp (6), and the second adjusting screw (3-6) and the third adjusting screw (3-8) are tightly arranged on the hose clamp (6).

5. The protector against breakage of a filling hose according to claim 1, characterized in that: The left installation plate (1) is provided with a first protective cylinder (4), and the right installation plate (1) is provided with a second protective cylinder (5).

6. A protection device against breakage of a filling hose according to claim 5, characterized in that: The inner diameter of the first protective cylinder (4) is greater than the outer diameter of the second protective cylinder (5).

7. The protector against breakage of a filling hose according to claim 1, characterized in that: The elastic connector (2) is a high-strength elastic rope.

8. The protector against breakage of a filling hose according to claim 1, characterized in that: The elastic connector (2) is a spring.