Urban gas engineering safety protection device
By designing safety protection devices for the installation mechanism, telescopic mechanism, and fixing mechanism, the threat of high-temperature sparks and metal spatter to operators during welding is solved, achieving all-round protection, especially for the respiratory system, thus improving operational safety and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YAOZE URBAN CONSTRUCTION DEVELOPMENT CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-29
Smart Images

Figure CN224295044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding protection equipment technology, and in particular to a safety protection device for urban gas engineering. Background Technology
[0002] Urban gas engineering refers to a series of engineering construction activities involving the production, storage, transmission, distribution, and application of gas to meet the gas needs of urban residents, industrial and commercial users, etc. Based on the different sources, uses, and transmission and distribution methods of gas, urban gas engineering can be divided into types such as natural gas engineering, liquefied petroleum gas engineering, and manufactured gas engineering.1 Its core tasks include ensuring a safe, reliable, economical, and environmentally friendly supply of gas, while also considering gas usage efficiency and energy conservation and emission reduction.
[0003] In urban gas engineering, welding gas pipes together using a welding torch is a common operation. However, the large amount of high-temperature sparks and metal spatter generated during welding poses a direct safety threat to operators. Insufficient protection can easily cause skin burns or eye injuries. Although current technology usually requires operators to wear protective glasses to protect their eyes, this single eye protection is clearly inadequate, as it completely ignores the protection of the mouth and nose area. This leaves the operator's respiratory system easily exposed to harmful gases and metal dust generated during welding, thus increasing the risk of inhalation hazards. Utility Model Content
[0004] One objective of this invention is to provide a safety protection device for urban gas engineering projects. This invention addresses the issue mentioned in the background that, in urban gas engineering, welding gas pipes together using a welding torch is a common operation. However, the large amount of high-temperature sparks and metal spatter generated during welding poses a direct safety threat to operators. Insufficient protection can easily cause skin burns or eye injuries. Although existing technologies typically require operators to wear protective eyewear, this single eye protection is clearly inadequate, completely neglecting the protection of the mouth and nose area. This leaves the operator's respiratory system easily exposed to harmful gases and metal dust generated during welding, increasing the risk of inhalation hazards.
[0005] A safety protection device for urban gas engineering according to an embodiment of the present utility model includes:
[0006] The mounting mechanism is mounted on the welding gun for easy installation. The mounting mechanism includes a first clamping plate and a second clamping plate, which are rotatably connected by a first elastic sheet. A first docking cylinder is fixedly mounted at the tail end of the first clamping plate.
[0007] A telescopic mechanism is installed at the tail end of the first docking cylinder in the installation mechanism to achieve adjustable blocking distance. The telescopic mechanism includes a telescopic arm assembly composed of a fixed cylinder, a telescopic column, and a movable cylinder. The front end of the fixed cylinder and the tail end of the movable cylinder are respectively rotatably provided with a first docking column and a second docking column through a fixing component. The telescopic arm assembly fixes the extension length through a positioning component.
[0008] A fixing mechanism is installed at the front end of the movable cylinder in the telescopic mechanism to clamp and fix the protective device. The fixing mechanism includes a support plate and a fixing plate, which are rotatably connected by a second elastic sheet. A second docking cylinder is fixedly installed at the tail end of the support plate, and a welding mask is installed between the support plate and the fixing plate.
[0009] Preferably, a first lever is fixedly provided on the top of the second clamping plate.
[0010] Preferably, the first docking cylinder and the first docking post are corresponding to each other and are engaged.
[0011] Preferably, the fastener consists of bolts and nuts.
[0012] Preferably, the telescopic column is fixedly installed at the tail end of the movable cylinder, and the telescopic column is movably installed inside the fixed cylinder.
[0013] Preferably, the positioning component includes positioning holes formed on the surfaces of the telescopic column and the movable cylinder, and a rotating seat fixed to the surface of the fixed cylinder. A positioning plate is rotatably arranged inside the rotating seat, and a positioning column is fixedly arranged at one end of the bottom of the positioning plate corresponding to the positioning hole. The positioning hole and the positioning column are compatible with each other.
[0014] Preferably, the second docking cylinder and the second docking post are corresponding to each other and are engaged.
[0015] Preferably, a second lever is fixedly provided on the top of the fixing plate, and the welding mask is made of plexiglass.
[0016] The beneficial effects of this utility model are:
[0017] This utility model, through its installation, telescopic, and fixing mechanisms, effectively avoids the problem of operators being injured by high-temperature sparks and metal spatter during welding. In use, the welding gun barrel is clamped by the first and second clamping plates in the installation mechanism, and the elasticity of the first elastic plate is used to achieve quick clamping and fixing. Then, the first docking post in the telescopic arm assembly is inserted into the first docking cylinder to complete the locking connection. Next, the second docking post in the telescopic arm assembly is inserted into the second docking cylinder to complete the locking connection. Finally, the second elastic plate of the fixing mechanism clamps the support plate and the fixing plate to the edge of the welding mask. The whole assembly can be adjusted by rotation according to the needs of shielding and protection, so that the mask can always be kept in the blocking position of the spark spatter path, which can play an effective protective function. This solves the problem that the respiratory system is harmed by harmful gases and dust when only protective glasses are worn during the welding of gas pipelines without protection of the mouth and nose.
[0018] This utility model, through the setting of a positioning component, allows the telescopic column to slide along the inner wall of the fixed cylinder when the operator stretches the movable cylinder to adjust the protective distance. By pressing down the positioning plate, the positioning column is inserted into the corresponding positioning hole, thus firmly fixing the telescopic arm assembly's telescopic length. This improves the flexibility of the entire device, resulting in a simple structure, convenient operation, and good practicality. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is a three-dimensional structural diagram of one side of a safety protection device for urban gas engineering proposed in this utility model;
[0021] Figure 2 This is a three-dimensional structural diagram of the other side of a safety protection device for urban gas engineering proposed in this utility model;
[0022] Figure 3 This is a schematic diagram of the lever structure of a safety protection device for urban gas engineering proposed in this utility model;
[0023] Figure 4 This is a schematic diagram of the positioning plate structure of a safety protection device for urban gas engineering proposed in this utility model;
[0024] In the diagram: 1. Installation mechanism; 101. First clamping plate; 102. Second clamping plate; 103. First elastic plate; 104. First docking cylinder; 105. First lever; 2. Telescopic mechanism; 201. Fixed cylinder; 202. Telescopic column; 203. Movable cylinder; 204. Weight reduction groove; 205. Positioning hole; 206. Rotating seat; 207. Positioning plate; 208. Positioning column; 209. First docking column; 210. Second docking column; 211. Fixing component; 3. Fixing mechanism; 301. Support plate; 302. Fixed plate; 303. Second docking cylinder; 304. Second elastic plate; 305. Second lever; 4. Welding mask. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0026] refer to Figure 1-4 A safety protection device for urban gas engineering, comprising:
[0027] Mounting mechanism 1 is mounted on the welding gun for easy installation. Mounting mechanism 1 includes a first clamping plate 101 and a second clamping plate 102. The first clamping plate 101 and the second clamping plate 102 are rotatably connected by a first elastic sheet 103. A first docking cylinder 104 is fixedly installed at the tail end of the first clamping plate 101. The barrel of the welding gun is clamped by the first clamping plate and the second clamping plate in the mounting mechanism, and the elastic force of the first elastic sheet is used to achieve quick clamping and fixing.
[0028] Telescopic mechanism 2, installed at the tail end of the first docking cylinder 104 in the installation mechanism 1, is used to achieve adjustable blocking distance. Telescopic mechanism 2 includes a telescopic arm assembly composed of a fixed cylinder 201, a telescopic column 202, and a movable cylinder 203. The front end of the fixed cylinder 201 and the tail end of the movable cylinder 203 are respectively rotatably mounted with a first docking column 209 and a second docking column 210 via a fixing member 211. The telescopic arm assembly fixes its extension length through a positioning component. The positioning component includes positioning holes 205 formed on the surfaces of the telescopic column 202 and the movable cylinder 203, and a rotating seat 206 fixed to the surface of the fixed cylinder 201. The rotating seat 206 has a rotatable internal mechanism. A positioning plate 207 is provided, and a positioning post 208 is fixedly provided at one end of the bottom of the positioning plate 207 corresponding to the positioning hole 205. The positioning hole 205 and the positioning post 208 are compatible. Then, the first docking post in the telescopic arm assembly is inserted into the first docking cylinder to complete the locking connection. Then, the second docking post in the telescopic arm assembly is inserted into the second docking cylinder to complete the locking connection. When the operator stretches the movable cylinder to adjust the protection distance, the telescopic post slides along the inner wall of the fixed cylinder. By pressing down the positioning plate, the positioning post is inserted into the corresponding positioning hole. In this way, the telescopic arm assembly can be firmly fixed in terms of telescopic length, thereby improving the flexibility of the entire device. In this way, the structure is simple, the operation is convenient, and it has good practicality.
[0029] The fixing mechanism 3 is installed at the front end of the movable cylinder 203 in the telescopic mechanism 2 and is used to clamp and fix the protective device. The fixing mechanism 3 includes a support plate 301 and a fixing plate 302. The support plate 301 and the fixing plate 302 are rotatably connected by a second elastic piece 304. A second docking cylinder 303 is fixedly installed at the tail end of the support plate 301. A welding mask 4 is installed between the support plate 301 and the fixing plate 302. The second elastic piece of the fixing mechanism clamps the support plate and the fixing plate to the edge of the welding mask. The whole can be adjusted by rotation according to the needs of shielding and protection, so that the mask can always be kept in the blocking position of the spark splash path, so as to achieve an effective protective function.
[0030] Example 1: A first lever 105 is fixedly installed on the top of the second clamping plate 102, which facilitates manual adjustment to open the second clamping plate and detach it from or install it on the welding gun. The first docking cylinder 104 and the first docking post 209 correspond to each other and are engaged. The fixing member 211 consists of bolts and nuts. The telescopic post 202 is fixedly installed at the tail end of the movable cylinder 203. The telescopic post 202 is located inside the fixed cylinder 201 and is movable to realize the adjustment of the shielding distance.
[0031] Example 2: The second docking cylinder 303 and the second docking post 210 correspond to each other and are interlocked. The top of the fixing plate 302 is fixedly provided with a second lever 305 for easy adjustment by the operator. The welding mask 4 is made of plexiglass, providing the operator with a transparent and high-temperature resistant observation window to ensure a clear and safe view during the welding process.
[0032] Working principle: First, the installation mechanism 1 clamps the barrel of the welding gun through the first clamping plate 101 and the second clamping plate 102, and uses the elastic force of the first elastic plate 103 to achieve quick clamping and fixation. The first lever 105 on the top of the second clamping plate 102 facilitates manual adjustment, making installation easier. Next, the telescopic mechanism 2 is fixed to the tail end of the installation mechanism 1 through the engagement of the first docking cylinder 104 and the first docking post 209. The telescopic arm assembly consists of a fixed cylinder 201, a movable cylinder 203, and a telescopic post 202. The telescopic post 202 is fixed to the tail end of the movable cylinder 203 and can slide within the fixed cylinder 201 to adjust the blocking distance. The positioning assembly, including the positioning hole 205, the rotating seat 206, the positioning plate 207, and the positioning post 208, can securely fix the arm. The extended length of the telescopic arm assembly improves the flexibility of the device. Finally, the fixing mechanism 3 clamps the welding mask 4 through the support plate 301 and the fixing plate 302, and uses the second elastic plate 304 to achieve rotational adjustment, so that the mask is always kept in the blocking position of the spark splash path. The engaging setting of the second docking cylinder 303 and the second docking column 210, as well as the second lever 305 on the top of the fixing plate 302, further facilitate the adjustment by the operator. The welding mask 4 is made of plexiglass, providing the operator with a transparent and high-temperature resistant observation window to ensure a clear and safe field of vision during the welding process. Therefore, this device effectively solves the problem of the respiratory system being harmed by harmful gases and dust due to the lack of mouth and nose protection when only wearing protective glasses during the welding of gas pipeline engineering.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A safety protection device for urban gas engineering, characterized in that, include: The mounting mechanism (1) is mounted on the welding gun for easy installation. The mounting mechanism (1) includes a first clamping plate (101) and a second clamping plate (102). The first clamping plate (101) and the second clamping plate (102) are rotatably connected by a first elastic sheet (103). A first docking cylinder (104) is fixedly provided at the tail end of the first clamping plate (101). Telescopic mechanism (2) is installed at the tail end of the first docking cylinder (104) in the installation mechanism (1) to achieve adjustable blocking distance. The telescopic mechanism (2) includes a telescopic arm assembly composed of a fixed cylinder (201), a telescopic column (202) and a movable cylinder (203). The front end of the fixed cylinder (201) and the tail end of the movable cylinder (203) are respectively rotatably provided with a first docking column (209) and a second docking column (210) through a fixing member (211). The telescopic arm assembly fixes the extension length through a positioning component. The fixing mechanism (3) is installed at the front end of the movable cylinder (203) in the telescopic mechanism (2) and is used to clamp and fix the protective device. The fixing mechanism (3) includes a support plate (301) and a fixing plate (302). The support plate (301) and the fixing plate (302) are rotatably connected by a second elastic sheet (304). A second docking cylinder (303) is fixedly installed at the tail end of the support plate (301). A welding mask (4) is installed between the support plate (301) and the fixing plate (302).
2. The safety protection device for urban gas engineering according to claim 1, characterized in that, The top of the second clamping plate (102) is fixedly provided with a first lever (105).
3. A safety protection device for urban gas engineering according to claim 1, characterized in that, The first docking cylinder (104) and the first docking post (209) correspond to each other and are engaged.
4. A safety protection device for urban gas engineering according to claim 1, characterized in that, The fastener (211) consists of bolts and nuts.
5. A safety protection device for urban gas engineering according to claim 1, characterized in that, The telescopic column (202) is fixedly installed at the tail end of the movable cylinder (203), and the telescopic column (202) is located inside the fixed cylinder (201) and is movable.
6. A safety protection device for urban gas engineering according to claim 1, characterized in that, The positioning component includes positioning holes (205) on the surfaces of the telescopic column (202) and the movable cylinder (203), and a rotating seat (206) fixed on the surface of the fixed cylinder (201). A positioning plate (207) is rotatably arranged inside the rotating seat (206). A positioning post (208) is fixedly arranged at one end of the bottom of the positioning plate (207) corresponding to the positioning hole (205). The positioning hole (205) and the positioning post (208) are compatible with each other.
7. A safety protection device for urban gas engineering according to claim 1, characterized in that, The second docking cylinder (303) and the second docking post (210) correspond to each other and are engaged.
8. A safety protection device for urban gas engineering according to claim 1, characterized in that, The top of the fixing plate (302) is fixedly provided with a second lever (305), and the welding mask (4) is made of plexiglass.