Fixed gas welding and cutting torch pipeline protection device

Abstract

The utility model relates to the technical field of protection devices, and discloses a fixed gas welding and cutting torch pipeline protection device which comprises a welding and cutting torch body and a gas pipe, and a connecting part is arranged between the welding and cutting torch body and the gas pipe. When the pressing plate is pressed, the hinged position of the pressing plate and the hinged block is forced to rotate, the pressing plate also drives a sliding rod to slide downwards along a sliding groove under the action of pressure, the sliding rod pushes a connecting block to move downwards together, the sliding rod compresses a spring, and when the connecting block moves downwards, a hinged push rod is pushed to rotate to a certain degree; the push rod pushes the linkage block to slide along the surface of the protective sleeve, and the linkage block pushes the pushing block to abut against the pushing groove to drive the protective sleeve to slide, so that the gas pipe and the welding and cutting torch body are sealed more tightly through the protective sleeve made of the rubber material, and gas leakage or connection looseness between the gas pipe and the welding and cutting torch body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of protection devices, in particular to a fixed gas welding and cutting torch pipeline protection device. Background Art

[0002] A torch line protector is a device used to protect the torch line. It usually consists of an outer shell and an inner pipe, which can effectively prevent the line from being damaged by external factors. Some common external factors include high temperature, mechanical damage, chemical corrosion, etc. In order to prevent these factors from damaging the pipeline, different types of protection devices can be used, such as insulation sleeves, metal bellows, anti-corrosion coatings, etc.

[0003] When the welding torch is in use, because the position of the welding torch needs to be constantly moved, the connection between the welding torch and the air pipe may be pulled or accidentally touched, which may cause the air pipe to loosen and cause great hidden dangers. However, the existing welding torch only connects the air pipe to the welding torch through a screw sleeve, which cannot protect the connection. Summary of the invention

[0004] The utility model aims to provide a fixed gas welding and cutting torch pipeline protection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a fixed gas welding torch pipeline protection device, comprising a welding torch body and a gas pipe, wherein a connecting portion is provided between the welding torch body and the gas pipe, and the connecting portion comprises:

[0006] A threaded connection seat, wherein a side of the threaded connection seat close to the welding torch body is fixedly connected to the surface of the welding torch body, an end of the threaded connection seat away from the welding torch body is penetrated by a connection ring, and the connection ring is threadedly connected to the threaded connection seat, and a sealing ring 1 is fixedly connected to a side of the connection ring away from the threaded connection seat;

[0007] A protective sleeve, the protective sleeve is penetrated by the air pipe and fixedly connected, a clamping ring is fixedly connected to the surface of the protective sleeve, a push ring and a sealing ring are fixedly connected to the surface of the protective sleeve, a hinge block is penetrated and hinged to the surface of the connecting ring, and a pressing plate is fixedly connected to the end of the hinge block away from the connecting ring. Before the welding torch body is used, the connecting ring is aligned with the threaded connecting seat and connected, and then the connecting ring is rotated to connect the connecting ring with the threaded connecting seat, thereby connecting the air pipe to the welding torch body;

[0008] A sliding rod, wherein one side of the sliding rod close to the pressing plate is fixedly connected to the surface of the pressing plate, and one end of the sliding rod away from the pressing plate penetrates and is slidably connected to a ring.

[0009] Preferably, the slide rod passes through and is fixedly connected with a connecting block, and a push rod passes through and is hinged at the bottom end of the connecting block. The slide rod pushes the connecting block to move downward together, and the slide rod compresses the spring.

[0010] Preferably, the end of the push rod away from the connecting block passes through and is hinged with a linkage block, and the bottom surface of the linkage block is fixedly connected with a pushing block. When the connecting block moves downward, it will push the hinged push rod to rotate to a certain extent, and the push rod will push the linkage block to slide along the surface of the protective cover.

[0011] Preferably, a protective ring is fixedly connected to the surfaces of the sealing ring 1 and the sealing ring 2, and a limiting rack is fixedly connected to the inner side of the protective ring.

[0012] Preferably, a slide groove is fixedly connected to the inner side of the circular ring. When the pressing plate is subjected to pressure, the position where the pressing plate and the hinge block are hinged will be forced to rotate, and the pressing plate will also drive the slide rod to slide downward along the slide groove under the action of pressure. The slide rod passes through the slide groove and is slidably connected, and a spring is fixedly connected between the slide rod and the inner side of the slide groove.

[0013] Preferably, the surface of the push ring is hinged with a latch tooth, and the latch tooth hinged on the surface of the push ring will interfere with the limiting rack and force the latch tooth to rotate and contract, and press the torsion spring tightly. When the latch tooth exceeds the limiting rack, the torsion spring will lift the latch tooth and clamp it with the limiting rack. A torsion spring is fixedly connected between the latch tooth and the push ring.

[0014] Preferably, a pushing groove is provided on the surface of the protective cover, and the cross section of the pushing groove is trapezoidal and is the same as the cross section of the pushing block.

[0015] Compared with the prior art, the utility model provides a fixed gas welding and cutting torch pipeline protection device, which has the following beneficial effects:

[0016] 1. The fixed gas welding and cutting torch pipeline protection device, when the pressing plate is subjected to pressure, will force the hinged position of the pressing plate and the hinge block to rotate, and the pressing plate will also drive the slide bar to slide downward along the slide groove under the action of pressure, and the slide bar will push the connecting block to move downward together, and the slide bar will compress the spring, when the connecting block moves downward, it will push the hinged push rod to rotate to a certain extent, and the push rod will push the linkage block to slide along the surface of the protective cover, and the linkage block will push the push block to resist the push groove to drive the protective cover to slide, so that the rubber protective cover can seal the air pipe and the welding and cutting torch body more tightly, to avoid gas leakage or loose connection between the air pipe and the welding and cutting torch body.

[0017] 2. The fixed gas welding and cutting torch pipeline protection device will drive the push ring to move together when the protective sleeve is pushed, and the hinged latch on the surface of the push ring will resist the limit rack and force the latch to rotate and shrink, and press the torsion spring tightly. When the latch exceeds the limit rack, the torsion spring will lift the latch and clamp it with the limit rack, thereby ensuring the tightness of the connection between the protective sleeve and the gas pipe box welding and cutting torch body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 It is a partial enlarged structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the protective ring of the utility model;

[0021] Figure 4 This is a schematic diagram of the enlarged cross-sectional structure of the protective ring of the utility model;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of the push ring of the utility model.

[0023] In the figure: 1. welding torch body; 2. connecting part; 21. threaded connection seat; 22. connecting ring; 23. sealing ring 1; 24. protective cover; 25. clamping ring; 26. pushing ring; 27. sealing ring 2; 28. hinge block; 29. ​​pressing plate; 210. sliding rod; 211. circular ring; 212. sliding groove; 213. pushing rod; 214. connecting block; 215. linkage block; 216. pushing block; 217. protective ring; 218. limiting rack; 219. pushing groove; 220. clamping tooth; 221. torsion spring; 222. spring; 3. air pipe. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a fixed gas welding torch pipeline protection device, including a welding torch body 1 and an air pipe 3, a connecting part 2 is arranged between the welding torch body 1 and the air pipe 3, and the connecting part 2 includes: a threaded connection seat 21, a connecting ring 22, a sealing ring 1 23, a protective sleeve 24, a clamping ring 25, a pushing ring 26, a sealing ring 27, a hinge block 28, a pressing plate 29, a sliding rod 210, a circular ring 211, a sliding groove 212, a pushing rod 213, a connecting block 214, a linkage block 215, a pushing block 216, a protective ring 217, a limiting rack 218, a pushing groove 219, a clamping tooth 220, a torsion spring 221, and a spring 222.

[0025] The side of the threaded connection seat 21 close to the welding torch body 1 is fixedly connected to the surface of the welding torch body 1, the end of the threaded connection seat 21 away from the welding torch body 1 is penetrated by a connection ring 22, and the connection ring 22 is threadedly connected to the threaded connection seat 21, the side of the connection ring 22 away from the threaded connection seat 21 is fixedly connected to a sealing ring 1 23, the protective sleeve 24 is penetrated by the air pipe 3 and fixedly connected, the surface of the protective sleeve 24 is fixedly connected to a clamping ring 25, the surface of the protective sleeve 24 is fixedly connected to a push ring 26 and a sealing ring 27, the surface of the connecting ring 22 is penetrated and hinged with a hinge block 28, and the hinge block 28 is away from the One end of the connecting ring 22 is fixedly connected to a pressing plate 29. Before using the welding torch body 1, the connecting ring 22 is aligned with the threaded connecting seat 21 and connected, and then the connecting ring 22 is rotated to connect the connecting ring 22 to the threaded connecting seat 21, thereby connecting the air pipe 3 to the welding torch body 1. When the welding torch body 1 is in use, if the connection between the air pipe 3 and the welding torch body 1 is accidentally touched or pressed, the pressing plate 29 will be pressed first, and the side of the sliding rod 210 close to the pressing plate 29 is fixedly connected to the surface of the pressing plate 29, and the end of the sliding rod 210 away from the pressing plate 29 passes through and is slidably connected to a circular ring 211. The slide bar 210 penetrates and is fixedly connected with the connecting block 214. The bottom end of the connecting block 214 penetrates and is hinged with the push rod 213. The slide bar 210 will push the connecting block 214 to move downward together, and the slide bar 210 will compress the spring 222, and when the connecting block 214 moves downward, it will push the hinged push rod 213 to rotate to a certain extent. The end of the push rod 213 away from the connecting block 214 penetrates and is hinged with the linkage block 215. The bottom surface of the linkage block 215 is fixedly connected with a push block 216. When the connecting block 214 moves downward, it will push the hinged push rod 213 to rotate to a certain extent, and the push rod 213 will push the linkage block 215 to slide along the surface of the protective cover 24. The linkage block 215 will push the push block 216 to contact the push groove 219 to drive the protective cover 24 to slide, so that the rubber protective cover 24 can seal the air pipe 3 and the welding torch body 1 more tightly. The surfaces of the sealing ring 1 23 and the sealing ring 2 27 are fixedly connected with a protective ring 217, and the inner side of the protective ring 217 is fixedly connected with a limit rack 218. The inner side of the circular ring 211 is fixedly connected with a slide groove 212. When the pressing plate 29 is subjected to pressure, the hinged position of the pressing plate 29 and the hinge block 28 will be forced to rotate, and the pressing plate 29 will also drive the slide bar 210 to slide downward along the slide groove 212 under the action of pressure. The slide bar 210 penetrates the slide groove 212 and is slidably connected. A spring 222 is fixedly connected between the slide bar 210 and the inner side of the slide groove 212. A latch tooth 220 is hinged on the surface of the push ring 26. The latch tooth 220 hinged on the surface of the push ring 26 will interfere with the limiting rack 218 and force the latch tooth 220 to rotate and contract, and press the torsion spring 221. When the latch tooth 220 exceeds the limiting rack 218, the torsion spring 221 will lift the latch tooth 220 and clamp it to the limiting rack 218. The torsion spring 221 is fixedly connected between the latch tooth 220 and the push ring 26.A pushing groove 219 is formed on the surface of the protection cover 24 , and the cross section of the pushing groove 219 is trapezoidal and is the same as the cross section of the pushing block 216 .

[0026] Based on the above embodiment, before the welding torch body 1 is used, the connecting ring 22 is aligned with the threaded connecting seat 21 and connected, and then the connecting ring 22 is rotated to connect the connecting ring 22 with the threaded connecting seat 21, thereby connecting the gas pipe 3 to the welding torch body 1. When the welding torch body 1 is used, if the connection between the gas pipe 3 and the welding torch body 1 is accidentally touched or pressed, the pressing plate 29 will be pressed first. When the pressing plate 29 is subjected to pressure, the position where the pressing plate 29 is hinged to the hinge block 28 will be forced to rotate, and the pressing plate 29 will also drive the slide bar 210 along the slide groove 212 to move forward under the action of pressure. The sliding rod 210 will push the connecting block 214 to move downward together, and the sliding rod 210 will compress the spring 222. When the connecting block 214 moves downward, it will push the hinged push rod 213 to rotate to a certain extent, and the push rod 213 will push the linkage block 215 to slide along the surface of the protective cover 24, and the linkage block 215 will push the pushing block 216 to resist the pushing groove 219 to drive the protective cover 24 to slide, so that the rubber protective cover 24 can seal the air pipe 3 and the welding torch body 1 more tightly to avoid air leakage or loose connection between the air pipe 3 and the welding torch body 1.

[0027] When the protective sleeve 24 is pushed, the push ring 26 will be driven to move together, and the hinged latch 220 on the surface of the push ring 26 will contact the limit rack 218 and force the latch 220 to rotate and contract, and press the torsion spring 221 tightly. When the latch 220 exceeds the limit rack 218, the torsion spring 221 will lift the latch 220 and clamp it with the limit rack 218, thereby ensuring the tightness of the connection between the protective sleeve 24 and the air pipe 3 and the welding and cutting torch body 1.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A fixed gas welding torch pipeline protection device, comprising a welding torch body (1) and a gas pipe (3), characterized in that: A connecting portion (2) is provided between the welding torch body (1) and the gas pipe (3), and the connecting portion (2) comprises: A threaded connection seat (21), wherein a side of the threaded connection seat (21) close to the welding torch body (1) is fixedly connected to the surface of the welding torch body (1), an end of the threaded connection seat (21) away from the welding torch body (1) is penetrated by a connection ring (22), and the connection ring (22) is threadedly connected to the threaded connection seat (21), and a side of the connection ring (22) away from the threaded connection seat (21) is fixedly connected to a sealing ring 1 (23); A protective sleeve (24), the protective sleeve (24) is penetrated by and fixedly connected to the trachea (3), a clamping ring (25) is fixedly connected to the surface of the protective sleeve (24), a pushing ring (26) and a second sealing ring (27) are fixedly connected to the surface of the protective sleeve (24), a hinge block (28) is penetrated by and hingedly connected to the surface of the connecting ring (22), and a pressing plate (29) is fixedly connected to one end of the hinge block (28) away from the connecting ring (22); A sliding rod (210), wherein a side of the sliding rod (210) close to the pressing plate (29) is fixedly connected to the surface of the pressing plate (29), and an end of the sliding rod (210) away from the pressing plate (29) penetrates and is slidably connected to a ring (211).

2. A fixed gas welding and cutting torch pipeline protection device according to claim 1, characterized in that: The sliding rod (210) passes through and is fixedly connected to a connecting block (214), and a push rod (213) passes through and is hinged at the bottom end of the connecting block (214).

3. A fixed gas welding and cutting torch pipeline protection device according to claim 2, characterized in that: One end of the push rod (213) away from the connection block (214) passes through and is hingedly connected to a linkage block (215), and a pushing block (216) is fixedly connected to the bottom surface of the linkage block (215).

4. A fixed gas welding and cutting torch pipeline protection device according to claim 1, characterized in that: A protective ring (217) is fixedly connected to the surfaces of the first sealing ring (23) and the second sealing ring (27), and a limiting rack (218) is fixedly connected to the inner side of the protective ring (217).

5. A fixed gas welding and cutting torch pipeline protection device according to claim 1, characterized in that: The inner side of the circular ring (211) is fixedly connected with a slide groove (212), the slide rod (210) passes through the slide groove (212) and is slidably connected thereto, and a spring (222) is fixedly connected between the slide rod (210) and the inner side of the slide groove (212).

6. A fixed gas welding and cutting torch pipeline protection device according to claim 1, characterized in that: A latching tooth (220) is hingedly provided on the surface of the pushing ring (26), and a torsion spring (221) is fixedly connected between the latching tooth (220) and the pushing ring (26).

7. A fixed gas welding and cutting torch pipeline protection device according to claim 3, characterized in that: A pushing groove (219) is provided on the surface of the protective cover (24), and the cross section of the pushing groove (219) is trapezoidal and is the same as the cross section of the pushing block (216).

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