Underwater welding handle with welding rod easy to replace

Abstract

The embodiment of the utility model discloses an underwater welding handle with a welding rod easy to replace, and belongs to the technical field of underwater welding handles. When a welding rod needs to be replaced and a welding handle body is held by a hand, a thumb presses a pressing plate, a piston rod drives a second piston to move towards a right side cavity of a first gas storage cavity, gas in the first gas storage cavity is pushed to a cavity of a second gas storage cavity through a vent hole, and the gas pushes the first pistons at the upper end and the lower end of the second gas storage cavity; two limiting discs are driven to move, and a connecting rod and a limiting block are synchronously driven to move, so that an inserting rod is far away from a groove cavity of a groove, a welding rod can be disassembled, a new welding rod can be replaced, a pressing plate is loosened after a conductive square rod is placed into a groove cavity of a first sliding groove, a spring drives the limiting discs to reset, and gas in a second gas storage cavity is pushed to a chamber of the first gas storage cavity; and meanwhile, the inserting rod is inserted into a groove cavity of the groove so that the welding rod can be conveniently locked.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of underwater welding guns, and in particular to an underwater welding gun for easy replacement of welding rods. Background Art

[0002] Underwater welding and cutting are essential processes for the installation, maintenance, and construction of underwater structures. They are often used in marine engineering projects and the construction of large underwater facilities, including marine salvage, marine energy, and marine mining. The presence of water complicates underwater welding, and arc welding is a common method, which frequently requires replacement of electrodes.

[0003] For example, Chinese patent application number CN202221388525.3 discloses an underwater welding torch with a long service life. The specific content is: the position of the extrusion fixing block is controlled by the telescopic effect of the extrusion telescopic rod, the welding rod clamping ring is first controlled to be inserted into the welding rod, and then the extrusion telescopic rod is controlled to extend, so that the two extrusion fixing blocks can clamp and fix the welding rod in the middle. Then, the overall movement of the welding rod clamping ring can pull the welding rod to one side, so that the welding torch head clamps the welding rod. However, there are the following technical problems:

[0004] When clamping the welding rod, it is necessary to control the two squeezing fixed blocks - which can clamp the welding rod in the middle, and then make the welding rod clamping ring - move as a whole to pull the welding rod to one side, so that the welding handle can clamp the welding rod. The operation is relatively cumbersome, making it difficult to quickly replace the welding rod. Utility Model Content

[0005] To this end, an embodiment of the present invention provides an underwater welding gun that is easy to replace welding rods, so as to solve the problem in the prior art that the installation operation of the welding rods is relatively cumbersome and makes it difficult to quickly replace the welding rods.

[0006] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0007] The utility model relates to an underwater welding handle for easily replacing welding rods, comprising a welding handle main body.

[0008] A mounting block is installed on the upper end of the welding gun body, a welding rod is installed in the middle of the mounting block, and the mounting block is used to clamp and limit the welding rod.

[0009] The mounting block comprises a limiting assembly for limiting the position of the welding rod, and two locking assemblies for locking the welding rod are installed inside the limiting assembly.

[0010] An unlocking assembly is installed on the left side of the limiting assembly to cooperate with the limiting assembly to control the locking assembly to move up and down.

[0011] Furthermore, a conductive square rod is installed at one end of the welding rod, and grooves are provided at the upper and lower ends of the conductive square rod.

[0012] Furthermore, the outer cover of the welding handle body is provided with an anti-slip cover, and the lower end of the welding handle body is connected to a cable.

[0013] Furthermore, the locking assembly includes an insertion rod for cooperating with the groove to lock the conductive square rod, and a limiting block for limiting the insertion rod is installed on the upper end of the insertion rod.

[0014] Furthermore, a connecting rod for limiting the limiting block is installed at the left end of the limiting block, and the connecting rod is an L-shaped rod body, one end of the connecting rod is installed with a limiting plate, and one end of the limiting plate is installed with a piston.

[0015] Furthermore, the unlocking assembly includes an air storage tube, and the air storage tube is installed on the left side of the limiting assembly. An air storage chamber 1 is provided inside the air storage tube, and a piston 2 is provided in the hole of the air storage chamber 1. A piston rod is installed at the left end of the piston 2, and a pressing plate is installed at the left end of the piston rod for cooperating with the piston rod to push the piston 2.

[0016] Furthermore, the limiting assembly includes a block, a first slide groove for the conductive square rod to slide is provided on the right side of the block, and a second slide groove for the connecting rod to slide up and down is provided inside the block.

[0017] Furthermore, a second air storage chamber is machined inside the block, and a limit plate and a piston slide in the chamber of the second air storage chamber. Springs for pushing the limit plate are installed at the upper and lower ends of the chamber of the second air storage chamber. A vent is connected in the middle of the chamber of the second air storage chamber, and the vent is connected to the first air storage chamber.

[0018] The embodiment of the utility model has the following advantages:

[0019] When the welding rod needs to be replaced, while holding the welding handle body, the thumb presses the pressing plate, so that the piston rod drives the piston 2 to move to the right chamber of the gas storage chamber 1, and pushes the gas in the gas storage chamber 1 to the chamber of the gas storage chamber 2 through the vent hole. The gas pushes the piston 1 at the upper and lower ends of the gas storage chamber 2, driving the two limit plates to move, and synchronously driving the connecting rod and the limit block to move, so that the insertion rod is away from the groove cavity of the groove, so that the welding rod can be removed and replaced with a new welding rod. After putting the conductive square rod into the groove cavity of the slide groove 1, the pressing plate is released, and the spring drives the limit plate to reset, pushing the gas in the gas storage chamber 2 to the chamber of the gas storage chamber 1, and at the same time the insertion rod is inserted into the groove cavity of the groove to lock the welding rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a structural diagram of the installation block of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the locking assembly of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the unlocking component of the utility model;

[0026] Figure 5 This is a schematic structural diagram of the limit assembly of the utility model.

[0027] In the figure: 100- welding handle body, 110- anti-slip cover, 111- cable;

[0028] 10- welding rod, 11- conductive square rod, 12- groove;

[0029] 200-mounting block, 210-locking assembly, 211-insertion rod, 212-limiting block, 213-connecting rod, 214-limiting plate, 215-piston 1, 220-unlocking assembly, 221-air storage tube, 222-air storage chamber 1, 223-piston 2, 224-piston rod, 225-pressing plate, 230-limiting assembly, 231-block, 232-slide 1, 233-arc edge, 234-slide 2, 235-air storage chamber 2, 236-spring, 237-vent. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0031] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0032] See also Figure 1-Figure 5 The utility model provides an underwater welding torch which is easy to replace welding rods.

[0033] A welding rod 10 is installed in the middle of the mounting block 200, and the mounting block 200 is used to clamp and limit the welding rod 10. A conductive square rod 11 is fixedly installed at one end of the welding rod 10. A plurality of grooves 12 are provided at the upper and lower ends of the conductive square rod 11 to facilitate adjustment of the extension length of the welding rod 10, and when the insertion rod 211 is inserted into the groove cavity of the groove 12, the groove 12 is locked.

[0034] The outer portion of the electrode holder body 100 is covered with an anti-slip cover 110 , and the lower end of the electrode holder body 100 is connected to a cable 111 .

[0035] A mounting block 200 is fixedly installed on the top of the welding gun body 100, and the mounting block 200 includes a limiting component 230 for limiting the welding rod 10. Two locking components 210 for locking the welding rod 10 are installed inside the limiting component 230, and the two locking components 210 are symmetrically arranged. An unlocking component 220 is installed on the left side of the limiting component 230 for cooperating with the limiting component 230 to control the locking component 210 to move up and down.

[0036] The locking assembly 210 includes an insertion rod 211 for cooperating with the groove 12 to lock the conductive square rod 11. A limiting block 212 for limiting the insertion rod 211 is fixedly installed on the upper end of the insertion rod 211, and multiple insertion rods 211 are installed on the lower end of the limiting block 212.

[0037] A connecting rod 213 for limiting the limit block 212 is fixedly installed on the left end of the limit block 212, and the connecting rod 213 is an L-shaped rod body. A limit plate 214 is fixedly installed on one end of the connecting rod 213, and a piston 215 is fixedly installed on one end of the limit plate 214. When the piston 215 moves up and down, it synchronously drives the connecting rod 213, the limit block 212 and the insertion rod 211 to move up and down.

[0038] The unlocking assembly 220 includes an air storage tube 221, and the air storage tube 221 is fixedly installed on the left side of the limiting assembly 230. An air storage chamber 1 222 is provided inside the air storage tube 221, and a piston 223 is provided in the hole of the air storage chamber 1 222. A piston rod 224 is fixedly installed on the left end of the piston 223, and a pressing plate 225 is fixedly installed on the left end of the piston rod 224 for cooperating with the piston rod 224 to push the piston 223. When disassembling the welding rod 10, the operator only needs to press the pressing plate 225, so that the piston rod 224 drives the piston 223 to move to the right, pushing the gas in the air storage chamber 1 222 to the cavity of the air storage chamber 2 235.

[0039] The limiting assembly 230 includes a block 231, and a sliding groove 232 for sliding the conductive square rod 11 is opened on the right side of the block 231. The right side of the groove cavity of the sliding groove 232 is processed into an arc-shaped edge 233, which facilitates the conductive square rod 11 to slide into the groove cavity of the sliding groove 232.

[0040] The block 231 is provided with a second slide groove 234 for the connecting rod 213 to slide up and down. A second air storage chamber 235 is machined into the block 231, and a limit plate 214 and a piston 1 215 slide within the chamber of the second air storage chamber 235. Limit plates 214 and piston 1 215 are provided at both the upper and lower ends of the groove of the second air storage chamber 235. Springs 236 are installed at both the upper and lower ends of the chamber of the second air storage chamber 235 to push the limit plate 214. The spring 236 is sleeved on one end of the connecting rod 213. A vent 237 is connected to the middle of the second air storage chamber 235, and the vent 237 is connected to the first air storage chamber 222, facilitating the entry of gas into the second air storage chamber 235 through the first air storage chamber 222 and the vent 237.

[0041] When the welding rod 10 needs to be replaced, the thumb is used to press the pressing plate 225 while holding the welding handle body 100, so that the piston rod 224 drives the piston 223 to move to the right chamber of the gas storage chamber 1 222, and pushes the gas in the gas storage chamber 1 222 to the chamber of the gas storage chamber 2 235 through the vent 237. The gas pushes the piston 1 215 at the upper and lower ends of the gas storage chamber 235, driving the two limit plates 214 to move, and synchronously driving the continuous The connecting rod 213 and the limit block 212 are moved so that the insertion rod 211 is away from the groove cavity of the groove 12, and the welding rod 10 can be disassembled and replaced with a new welding rod. After the conductive square rod 11 is placed into the groove cavity of the slide groove 1 232, the pressing plate 225 is released, and the spring 236 drives the limit plate 214 to reset, pushing the gas in the gas storage chamber 2 235 to the chamber of the gas storage chamber 1 222. At the same time, the insertion rod 211 is inserted into the groove cavity of the groove 12 to lock the welding rod 10.

[0042] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. An underwater welding torch for easily replacing welding rods, comprising a welding torch body (100), characterized in that: A mounting block (200) is installed at the upper end of the welding gun body (100), a welding rod (10) is installed in the middle of the mounting block (200), and the mounting block (200) is used to clamp and limit the welding rod (10); The mounting block (200) comprises a limiting assembly (230) for limiting the position of the welding rod (10), and two locking assemblies (210) for locking the welding rod (10) are installed inside the limiting assembly (230); An unlocking assembly (220) is installed on the left side of the limiting assembly (230) for cooperating with the limiting assembly (230) to control the locking assembly (210) to move up and down.

2. The underwater welding torch for easily replacing welding rods according to claim 1, characterized in that: A conductive square rod (11) is installed at one end of the welding rod (10), and grooves (12) are provided at the upper and lower ends of the conductive square rod (11).

3. The underwater welding torch for easily replacing welding rods according to claim 1, characterized in that: The outer portion of the welding torch body (100) is provided with an anti-slip cover (110), and the lower end of the welding torch body (100) is connected to a cable (111).

4. The underwater welding torch for easily replacing welding rods according to claim 2, characterized in that: The locking assembly (210) comprises an insert rod (211) for cooperating with the groove (12) to lock the conductive square rod (11); a limiting block (212) for limiting the position of the insert rod (211) is installed at the upper end of the insert rod (211).

5. The underwater welding torch for easily replacing welding rods according to claim 4, characterized in that: A connecting rod (213) for limiting the limiting block (212) is installed at the left end of the limiting block (212), and the connecting rod (213) is an L-shaped rod body. A limiting plate (214) is installed at one end of the connecting rod (213), and a piston (215) is installed at one end of the limiting plate (214).

6. The underwater welding torch for easily replacing welding rods according to claim 5, characterized in that: The unlocking assembly (220) includes an air storage tube (221), and the air storage tube (221) is installed on the left side of the limiting assembly (230). An air storage chamber (222) is provided inside the air storage tube (221), a piston (223) is provided in the hole of the air storage chamber (222), a piston rod (224) is installed at the left end of the piston (223), and a pressing plate (225) is installed at the left end of the piston rod (224) for cooperating with the piston rod (224) to push the piston (223).

7. The underwater welding torch for easily replacing welding rods according to claim 6, characterized in that: The limiting assembly (230) includes a block (231), a first slide groove (232) for the conductive square rod (11) to slide is provided on the right side of the block (231), and a second slide groove (234) for the connecting rod (213) to slide up and down is provided inside the block (231).

8. The underwater welding torch for easily replacing welding rods according to claim 7, characterized in that: The block (231) is internally processed with a second air storage chamber (235), and the limiting plate (214) and the piston (215) slide in the chamber of the second air storage chamber (235). Springs (236) for pushing the limiting plate (214) are installed at the upper and lower ends of the chamber of the second air storage chamber (235). The middle of the chamber of the second air storage chamber (235) is connected to a vent hole (237), and the vent hole (237) is connected to the first air storage chamber (222).

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