Welding equipment for building construction

Abstract

The invention relates to the technical field of building construction, in particular to welding equipment for building construction, through cooperation of a first fixing block, a second fixing block and a pressing block, a first steel bar and a second steel bar are pressed together, a gap between the first steel bar and the second steel bar is eliminated, and then welding operation is conducted. The problem that welding fails due to the fact that the ends of the first reinforcing steel bar and the second reinforcing steel bar are bent is solved, meanwhile, the distance between the first fixing block and the second fixing block can be adjusted by rotating the second grip, and therefore the first reinforcing steel bar and the second reinforcing steel bar which are different in joint length can be fixed, and universality is high; welding equipment for building construction comprises a first connecting block and welding tongs. An electrode holder is arranged on one side of the connecting block; the device further comprises a first fixing block, a second fixing block, a first lead screw and a pressing block. A first fixing block is connected to the first connecting block. A second fixing block is connected to the first connecting block. The first fixing block and the second fixing block are each connected with a first lead screw in a screwed mode.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and more particularly to a welding device for building construction. Background Art

[0002] During the construction process, lifting robots can be used to lift construction workers and construction equipment to perform welding operations on steel bars at high places.

[0003] During the construction process, it is necessary to perform a butt welding operation on two steel bars. During welding, the ends of the two steel bars are placed close together, and then welding is performed at the intersection of the two steel bars. If the ends of the two steel bars are bent, a gap will be formed between the two steel bars when the two steel bars are attached, and the size of the gap changes with the degree of bending of the steel bars, which greatly increases the difficulty of welding and is prone to welding failure. At the same time, the existing correction and fixing equipment is too large and complicated. During the butt welding process, it is impossible to perform correction and fixing operations on the steel bars that have been installed on the building. Summary of the invention

[0004] In order to overcome the disadvantage that when the ends of two steel bars are bent, the welding difficulty will be greatly increased and the welding failure is very likely to occur, the present invention provides a welding device for construction.

[0005] The technical solution is as follows: A welding device for construction includes a connecting block 1 and a welding clamp; a welding clamp is arranged on one side of the connecting block; the device also includes a fixing block 1, a fixing block 2, a screw rod 1 and a pressure block; the connecting block 1 is connected to the fixing block 1; the connecting block 1 is connected to the fixing block 2; a screw rod 1 is screwed to each of the fixing block 1 and the fixing block 2; a pressure block is slidably connected to each of the fixing block 1 and the fixing block 2, and the pressure block is rotationally connected to the corresponding screw rod 1.

[0006] As a preferred technical solution of the present invention, it also includes a handle 1; each screw rod 1 is fixedly connected to a handle 1.

[0007] As a preferred technical solution of the present invention, it also includes an adjustment component; the adjustment component is connected to the connecting block 1; the adjustment component includes a movable block, a slider 1 and a screw rod 2; a movable block is fixedly connected to the fixed block 1 and the fixed block 2; each movable block is fixedly connected to a slider 1, and the slider 1 is slidably connected to the connecting block 1; all the movable blocks are screwed together with the screw rod 2, and the threads on the screw rod 2 are symmetrically arranged up and down.

[0008] As a preferred technical solution of the present invention, it also includes a second handle; the second handle is fixedly connected to the second screw rod.

[0009] As a preferred technical solution of the present invention, it also includes an avoidance component; the avoidance component is connected to the fixed block two; the avoidance component includes the connecting block two, the fixed block three and the fixed sleeve; the fixed block two is composed of the limiting part one and the limiting part two, and the limiting part one and the limiting part two are rotatably connected; the connecting block two is fixedly connected to the limiting part one; the fixed block three is damped slidingly connected between the limiting part one and the connecting block two, and the fixed block three is in contact with the limiting part two; the fixed sleeve is fixedly connected to the limiting part two, and the fixed sleeve is plugged into the fixed block three.

[0010] As a preferred technical solution of the present invention, it also includes a limiting block; the limiting block is fixedly connected to the fixing block, and the limiting block is in contact with the fixing sleeve.

[0011] As a preferred technical solution of the present invention, it also includes an extrusion component; the extrusion component is connected to the pressing block; the extrusion component includes a connecting block three, a sliding block two, a pushing block and a rubber pad; each pressing block is fixedly connected to a connecting block three; each connecting block three is slidably connected to at least two sliding blocks two; each connecting block three is fixedly connected to a rubber pad; each rubber pad is fixedly connected to a pushing block, and the pushing block is fixedly connected to the corresponding sliding block two.

[0012] As a preferred technical solution of the present invention, it also includes an auxiliary component; the auxiliary component is connected to the fixed block one; the auxiliary component includes a connecting block four, a fixed column, a connecting block five and a spring; the fixed block one is composed of an L-shaped portion and a U-shaped portion, and the L-shaped portion and the U-shaped portion are in contact; a connecting block four is fixedly connected to the L-shaped portion; the limiting portion one is divided into a straight portion and a curved portion; the straight portion of the limiting portion one is also fixedly connected to a connecting block four; the U-shaped portion is slidably connected to the corresponding connecting block four; the curved portion of the limiting portion one is slidably connected to the corresponding connecting block four; a fixed column is slidably connected to the U-shaped portion; the curved portion of the limiting portion one is also slidably connected to a fixed column; a connecting block five is fixedly connected to each of the two fixed columns, and the two connecting blocks five are slidably connected; a spring is fixedly connected to each connecting block five; the U-shaped portion is fixedly connected to the corresponding spring; the curved portion of the limiting portion one is fixedly connected to the corresponding spring.

[0013] As a preferred technical solution of the present invention, the fixing block 1, the fixing block 2 and the pressing block are all made of heat-insulating materials.

[0014] As a preferred technical solution of the present invention, both the fixing block 1 and the fixing block 2 are provided with chamfers.

[0015] The beneficial effects are: 1. The fixing block 1, the fixing block 2 and the pressing block are used to press the steel bar 1 and the steel bar 2 together, thereby eliminating the gap between the steel bar 1 and the steel bar 2, and then the welding operation is performed, thereby avoiding the problem of welding failure due to the bending of the ends of the steel bar 1 and the steel bar 2. At the same time, the spacing between the fixing block 1 and the fixing block 2 can be adjusted by rotating the handle 2, so that the steel bar 1 and the steel bar 2 with different intersection lengths can be fixed, and the universality is strong; Second, the fixed block 2 is divided into the limiting part 1 and the limiting part 2. After the steel bars 1 and 2 are clamped and fixed, the limiting part 2 can be opened to keep the limiting part 2 away from the welding position of the steel bars 1 and 2, so as to prevent the welding liquid from flowing onto the fixed block 2, thereby avoiding the problem of subsequent cleaning and maintenance difficulties. At the same time, during the welding process, the push block always has a leftward thrust on the steel bar 1. During the welding process, the junction of the steel bars 1 and 2 produces high temperature softening. At this time, the push block can continue to press the steel bar 1 to the steel bar 2, which is conducive to improving the welding stability; 3. After welding is completed, the worker only needs to pull the connection block 5 backward to make the fixing block 1 and the fixing block 2 stop pressing the steel bars 1 and 2 at the same time, thus avoiding the problem of decreased welding stability due to unilateral force on the steel bar 1 and making the disassembly operation more convenient; The present invention also has the following beneficial effects: The limit block is used to prevent the fixing block three from falling off from the connecting block two. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the welding equipment for building construction according to the present invention is shown in a first viewing angle; Figure 2 A schematic diagram of the structure of the regulating assembly of the present invention is shown; Figure 3 A second perspective structural diagram of the welding equipment for building construction of the present invention is shown; Figure 4 A schematic structural diagram of the avoidance assembly of the present invention is shown; Figure 5 A schematic diagram of the structure of the extrusion assembly of the present invention is shown; Figure 6 A schematic diagram showing a first viewing angle structure of the auxiliary component of the present invention is shown; Figure 7 A second viewing angle structural schematic diagram of the auxiliary component of the present invention is shown.

[0017] Markings in the figure are: 1-connecting block one, 2-fixed block one, 3-fixed block two, 4-screw rod one, 5-pressure block, 6-welding clamp, 7-steel bar one, 8-steel bar two, 201-handle one, 202-movable block, 203-slider one, 204-screw rod two, 205-handle two, 206-connecting block two, 207-fixed block three, 208-fixing sleeve, 209-limiting block, 2010-connecting block three, 2011-slider two, 2012-push block, 2013-rubber pad, 2014-connecting block four, 2015-fixed column, 2016-connecting block five, 2017-spring, 91-limiting part one, 92-limiting part two, 93-L-shaped part, 94-U-shaped part. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0019] Example 1 A welding device for building construction, such as Figure 1-Figure 3 As shown, it includes a connecting block 1 and a welding clamp 6; a welding clamp 6 is arranged on the side of the connecting block 1, and the connecting block 1 is set to an alloy material; it also includes a fixed block 2, a fixed block 3, a screw rod 4 and a pressure block 5; the connecting block 1 is connected to the fixed block 2; the connecting block 1 is connected to the fixed block 3; the fixed block 2 and the fixed block 3 are both screwed with a screw rod 4, and the screw rod 4 is set to an alloy material; the fixed block 2 and the fixed block 3 are both slidably connected with a pressure block 5, and the pressure block 5 is rotationally connected to the corresponding screw rod 4, and the fixed block 2, the fixed block 3 and the pressure block 5 cooperate to clamp the steel bar 7 and the steel bar 8 to limit the position.

[0020] It also includes a handle 201; each screw rod 4 is fixedly connected with a handle 201, so that it is easier to rotate the screw rod 4 manually.

[0021] It also includes an adjustment component; the adjustment component is connected to the connecting block 1; the adjustment component includes a movable block 202, a slider 203 and a screw rod 204; a movable block 202 is welded on each of the fixed blocks 2 and 3; a slider 203 is welded on each movable block 202, the slider 203 is slidably connected to the connecting block 1, and the slider 203 is set to a wear-resistant material; all the movable blocks 202 are screwed together with a screw rod 204, and the threads on the screw rod 204 are symmetrically arranged up and down, and the two movable blocks 202 are driven to move toward or away from each other through the screw rod 204.

[0022] The second handle 205 is also included; the second handle 205 is fixedly connected to the second screw rod 204, so that the second screw rod 204 can be rotated more easily manually.

[0023] The working principle of the above embodiment is as follows: by Figure 1 The side of the middle fixed block 2 3 close to the welding clamp 6 is set as the front side. First, the front and rear sides of the steel bars 1 7 and the steel bars 2 8 are manually aligned. Then, the connecting block 1 and the parts thereon are moved by hand, and the fixing block 1 2 and the fixing block 2 3 are buckled to the lower part of the steel bars 2 8. Then, the connecting block 1 and the parts thereon are driven to move upward, so that the fixing block 1 2 and the fixing block 2 3 move to the intersection of the steel bars 1 7 and the steel bars 2 8. At this time, the front and rear sides of the steel bars 1 7 and the steel bars 2 8 are limited by the fixing block 1 2 and the fixing block 2 3. Then, the handle 1 201 is manually twisted, and the handle 1 201 drives the screw rod 1 4 to rotate, so that the screw rod 1 4 rotates and moves to the left. The screw rod 1 4 drives the two pressing blocks 5 to move between the fixing block 2 and the fixing block 2 respectively. The pressing block 5 moves to the left and contacts with the steel bar 1 7, and then the steel bar 1 7 is pressed against the steel bar 2 8 by the pressing block 5, so that the steel bar 1 7 and the steel bar 2 8 are closely fitted together to eliminate the gap, and then the welding clamp 6 is used to manually perform welding operation on the front middle part of the intersection of the steel bar 1 7 and the steel bar 2 8. After the welding is completed, the handle 1 201 is manually twisted to move the pressing block 5 back to its original position, and then the connecting block 1 and the parts thereon are removed, and then the welding clamp 6 is used to weld the intersection of the steel bar 1 7 and the steel bar 2 8 covered by the fixed block 1 2 and the fixed block 2 3, and then the rear side of the intersection of the steel bar 1 7 and the steel bar 2 8 is welded to complete the welding operation, thereby avoiding the problem of welding failure due to the bending of the ends of the steel bar 1 7 and the steel bar 2 8.

[0024] Before welding, according to the intersection length of steel bar 1 7 and steel bar 2 8, manually twist handle 205, handle 205 drives screw rod 204 to rotate, screw rod 204 drives movable block 202 and slider 1 203 to move, movable block 202 drives fixed block 1 2 and fixed block 2 3 to move, so that fixed block 1 2 and fixed block 2 3 move toward or away from each other, thereby adjusting the distance between fixed block 1 2 and fixed block 2 3, so that steel bar 1 7 and steel bar 2 8 with different intersection lengths can be fixed, and it has strong universality.

[0025] According to the above working principle, we know that the present invention has the following effects: By cooperating with the fixing block 1 2, the fixing block 2 3 and the pressing block 5, the steel bar 1 7 and the steel bar 2 8 are pressed together to eliminate the gap between the steel bar 1 7 and the steel bar 2 8, and then the welding operation is performed, thereby avoiding the problem of welding failure due to the bending of the ends of the steel bar 1 7 and the steel bar 2 8. At the same time, the distance between the fixing block 1 2 and the fixing block 2 3 can be adjusted by rotating the handle 2 205, so that the steel bar 1 7 and the steel bar 2 8 with different intersection lengths can be fixed, and it has strong universality.

[0026] Example 2 On the basis of Example 1, Figure 4 and Figure 5 As shown, it also includes an avoidance component; the avoidance component is connected to the fixed block 2 3; the avoidance component includes a connecting block 206, a fixing block 3 207 and a fixing sleeve 208; the fixing block 2 3 is composed of a limiting part 1 91 and a limiting part 2 92, and the limiting part 1 91 and the limiting part 2 92 are rotatably connected; a connecting block 206 is welded on the limiting part 1 91, and the connecting block 206 is set to an alloy material; a fixing block 3 207 is damped and slidably connected between the limiting part 1 91 and the connecting block 206, and the fixing block 3 207 is in contact with the limiting part 2 92; a fixing sleeve 208 is welded on the limiting part 2 92, and the fixing sleeve 208 is plugged into the fixing block 3 207, and the limiting part 1 91 and the limiting part 2 92 are fixed together by matching the connecting block 206, the fixing block 3 207 and the fixing sleeve 208.

[0027] The limiting block 209 is welded on the fixing block 207 , and the limiting block 209 is in contact with the fixing sleeve 208 .

[0028] It also includes an extrusion component; the extrusion component is connected to the pressing block 5; the extrusion component includes a connecting block three 2010, a sliding block two 2011, a pushing block 2012 and a rubber pad 2013; each pressing block 5 is bolted with a connecting block three 2010; each connecting block three 2010 is slidably connected to two sliding blocks two 2011; each connecting block three 2010 is fixedly connected to a rubber pad 2013; each rubber pad 2013 is fixedly connected to a pushing block 2012, and the pushing block 2012 is fixedly connected to the corresponding sliding block two 2011.

[0029] The working principle of the above embodiment is as follows: In the welding process described in Example 1: During the welding process, welding liquid will flow downward. If the welding liquid flows onto the fixing block 203, it will increase the difficulty of subsequent cleaning and maintenance. Therefore, when the pressing block 5 presses the end of the steel bar 7 onto the steel bar 208, the arc surface of the pressing block 5 is in close contact with the surface of the steel bar 7. At this time, the front and rear ends of the arc surface of the pressing block 5 can be used to limit the front and rear directions of the steel bar 7. Then, the fixing block 3 207 is manually moved to slide between the fixing block 203 and the connecting block 206 in a damping manner, so that the fixing block 3 207 Move away from the fixing sleeve 208 and the limiting part 2 92, so that the fixing block 3 207 stops fixing the limiting part 2 92, and then manually rotate the limiting part 2 92 to make it move away from the bottom of the intersection of the reinforcing bar 1 7 and the reinforcing bar 2 8, that is, the pressing block 5 replaces the fixing block 2 3 to limit the front and rear directions of the reinforcing bar 1 7, and then the welding operation is performed. The welding liquid generated by the welding flows downward along the intersection of the reinforcing bar 1 7 and the reinforcing bar 2 8, and will not flow onto the fixing block 2 3, thereby avoiding the problem of subsequent cleaning and maintenance difficulties.

[0030] During the clamping process, the pressure block 5 drives the connection block three 2010 and the parts thereon to move, so that the push block 2012 contacts the steel bar 1 7 before the pressure block 5. The pressure block 5 continues to move to press the steel bar 1 7 against the steel bar 2 8. During this process, the steel bar 1 7 blocks and limits the push block 2012, so that the connection block three 2010 slides on the slider 2 2011 and compresses the rubber pad 2013. That is, after the steel bar 1 7 is pressed against the steel bar 2 8, the elastic force generated by the compression of the rubber pad 2013 acts on the push block 2012, so that during the welding process, the push block 2012 always has a leftward thrust on the steel bar 1 7. During the welding process, the junction between the steel bar 1 7 and the steel bar 2 8 produces high temperature softening. At this time, the push block 2012 can continue to press the steel bar 1 7 against the steel bar 2 8, which is beneficial to improving the welding stability.

[0031] According to the above working principle, we know that the present invention has the following effects: The fixed block 23 is divided into the limiting part 1 91 and the limiting part 2 92. After the steel bars 1 7 and the steel bars 2 8 are clamped and fixed, the limiting part 2 92 can be opened to make the limiting part 2 92 away from the bottom of the welding position of the steel bars 1 7 and the steel bars 2 8, so as to prevent the welding liquid from flowing onto the fixed block 23, thereby avoiding the problem of subsequent cleaning and maintenance difficulties. At the same time, during the welding process, the push block 2012 always has a leftward thrust on the steel bar 1 7. During the welding process, the junction of the steel bars 1 7 and the steel bars 2 8 produces high temperature softening. At this time, the push block 2012 can continue to press the steel bar 1 7 to the steel bar 2 8, which is beneficial to improve the welding stability.

[0032] On the basis of the above technical effects, the present invention also has the following advantages: A limit block 209 is welded on the fixed block three 207, and the limit block 209 is in contact with the fixed sleeve 208. When the fixed block three 207 is manually moved to slide on the connecting block two 206, the fixed block three 207 drives the limit block 209 to move together. When the limit block 209 is in contact with the connecting block two 206, the limit block 209 is blocked and limited by the connecting block two 206 to prevent the fixed block three 207 from falling off.

[0033] Example 3 On the basis of Example 2, Figure 6 and Figure 7As shown, it also includes an auxiliary component; the fixing block 2 is connected to the auxiliary component; the auxiliary component includes a connecting block 2014, a fixing column 2015, a connecting block 2016 and a spring 2017; the fixing block 2 is composed of an L-shaped portion 93 and a U-shaped portion 94, and the L-shaped portion 93 and the U-shaped portion 94 are in contact; a connecting block 2014 is fixedly connected to the L-shaped portion 93; the limiting portion 91 is divided into a straight portion and a curved portion; the straight portion of the limiting portion 91 is also fixedly connected to a connecting block 2014; the U-shaped portion 94 is slidably connected to the corresponding connecting block 2014; the curved portion of the limiting portion 91 is slidably connected to the corresponding connecting block 2014; the U-shaped portion 94 There is a fixed column 2015 slidingly connected on the upper part; the curved part of the limiting part 91 is also slidingly connected to a fixed column 2015; a connecting block 5 2016 is fixedly connected to the two fixed columns 2015, and the two connecting blocks 5 2016 are slidingly connected, and the connecting blocks 5 2016 are set to heat-insulating material; a spring 2017 is fixedly connected to each connecting block 5 2016, and when the connecting block 5 2016 is manually pulled to move, the connecting block 5 2016 drives the fixed column 2015 to move, so that the fixed column 2015 is away from the connecting block 4 2014; the U-shaped part 94 is fixedly connected to the corresponding spring 2017; the curved part of the limiting part 91 is fixedly connected to the corresponding spring 2017.

[0034] The fixing block 1 2 , the fixing block 2 3 and the pressing block 5 are all made of heat-insulating materials for heat insulation.

[0035] Both the fixing block 1 2 and the fixing block 2 3 are provided with chamfers, so that the fixing block 1 2 and the fixing block 2 3 can be more easily inserted into the outside of the steel bar 1 7 and the steel bar 2 8 .

[0036] The working principle of the above embodiment is as follows: After the welding operation described in Example 1 is completed: The two grips 201 are manually twisted in sequence to move, so that the two pressure blocks 5 stop squeezing the steel bar 7 in sequence. When one of the pressure blocks 5 moves back to its original position and the other pressure block 5 still presses the steel bar 7, the steel bar 7 is subjected to force on one side. If the welding point between the steel bar 7 and the steel bar 8 is not completely hardened, the other side of the steel bar 7 will be slightly tilted, generating a pulling force on the welding point, thereby reducing the welding stability. Therefore, after the welding is completed, the connecting block 5 2016 is manually pulled backward to drive the fixing column 2015 to move backward and stretch the spring 2017 to make the fixing column 2015 away from the connecting block 4 201. 4, so that the L-shaped portion 93 and the U-shaped portion 94 are in a relaxed state, and the straight portion and the curved portion of the limiting portion 91 are in a relaxed state, that is, the fixing block 1 2 and the fixing block 2 3 stop pressing the steel bar 1 7 and the steel bar 2 8 at the same time, avoiding the problem of reduced welding stability due to unilateral force on the steel bar 7, and making the disassembly operation more convenient. After the fixing block 1 2 and the fixing block 2 3 are disassembled, the manual pulling of the connecting block 5 2016 is stopped, and the spring 2017 drives the fixing column 2015 to reset. At this time, the L-shaped portion 93 and the straight portion of the limiting portion 91 can be manually pushed to reinsert the fixing column 2015 into the connecting block 4 2014.

[0037] According to the above working principle, we know that the present invention has the following effects: After welding is completed, the person only needs to pull the connecting block 5 2016 backward to make the fixing block 1 2 and the fixing block 2 3 stop pressing the steel bars 1 7 and 2 8 at the same time, thus avoiding the problem of decreased welding stability due to unilateral force on the steel bar 1 7 and making the disassembly operation more convenient.

[0038] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A welding device for construction, comprising a connecting block (1); a welding clamp (6) is arranged on the side of the connecting block (1); the device is characterized in that: The connecting block 1 (1) is connected to the fixing block 1 (2); the connecting block 1 (1) is connected to the fixing block 2 (3); the fixing block 1 (2) and the fixing block 2 (3) are both rotatably connected to a screw rod 1 (4); the fixing block 1 (2) and the fixing block 2 (3) are both slidably connected to a pressing block (5), and the pressing block (5) is rotatably connected to the corresponding screw rod 1 (4).

2. A welding device for construction according to claim 1, characterized in that: It also includes a handle (201); each screw rod (4) is fixedly connected to a handle (201).

3. A welding device for construction according to claim 1, characterized in that: The invention also comprises an adjustment component; the adjustment component is connected to the connecting block 1 (1); the adjustment component comprises a movable block (202); a movable block (202) is fixedly connected to each of the fixed blocks 1 (2) and the fixed block 2 (3); a slider 1 (203) is fixedly connected to each of the movable blocks (202); the slider 1 (203) is slidably connected to the connecting block 1 (1); a screw rod 2 (204) is screwed together on all the movable blocks (202); the threads on the screw rod 2 (204) are symmetrically arranged in an upper and lower manner.

4. A welding device for construction according to claim 3, characterized in that: It also includes a second handle (205); the second handle (205) is fixedly connected to the second screw rod (204).

5. A welding device for construction according to claim 3, characterized in that: The invention also comprises an avoidance component; the avoidance component is connected to the fixed block 2 (3); the avoidance component comprises a connecting block 2 (206); the fixed block 2 (3) is composed of a limiting part 1 (91) and a limiting part 2 (92), and the limiting part 1 (91) and the limiting part 2 (92) are rotatably connected; the connecting block 2 (206) is fixedly connected to the limiting part 1 (91); a fixed block 3 (207) is connected between the limiting part 1 (91) and the connecting block 2 (206) in a damping sliding manner, and the fixed block 3 (207) is in contact with the limiting part 2 (92); a fixed sleeve (208) is fixedly connected to the limiting part 2 (92), and the fixed sleeve (208) is plugged into the fixed block 3 (207).

6. A welding device for construction according to claim 5, characterized in that: It also includes a limiting block (209); the limiting block (209) is fixedly connected to the fixing block three (207), and the limiting block (209) is in contact with the fixing sleeve (208).

7. A welding device for construction according to claim 6, characterized in that: It also includes an extrusion assembly; the extrusion assembly is connected to the pressing block (5); the extrusion assembly includes a connecting block three (2010); each pressing block (5) is fixedly connected to a connecting block three (2010); each connecting block three (2010) is slidably connected to at least two sliding blocks two (2011); each connecting block three (2010) is fixedly connected to a rubber pad (2013); each rubber pad (2013) is fixedly connected to a push block (212), and the push block (212) is fixedly connected to the corresponding sliding block two (2011).

8. A welding device for construction according to claim 7, characterized in that: The invention also comprises an auxiliary component; the auxiliary component is connected to the fixing block 1 (2); the auxiliary component comprises a connecting block 4 (2014); the fixing block 1 (2) is composed of an L-shaped portion (93) and a U-shaped portion (94), the L-shaped portion (93) and the U-shaped portion (94) being in contact with each other; a connecting block 4 (2014) is fixedly connected to the L-shaped portion (93); the limiting portion 1 (91) is divided into a straight portion and a curved portion; the straight portion of the limiting portion 1 (91) is also fixedly connected to a connecting block 4 (2014); the U-shaped portion (94) is slidably connected to the corresponding connecting block 4 (2014); the curved portion of the limiting portion 1 (91) is The U-shaped portion (94) is slidably connected to a corresponding connecting block four (2014); a fixed column (2015) is slidably connected to the U-shaped portion (94); the curved portion of the limiting portion one (91) is also slidably connected to a fixed column (2015); a connecting block five (2016) is fixedly connected to the two fixing columns (2015), and the two connecting blocks five (2016) are slidably connected; a spring (2017) is fixedly connected to each connecting block five (2016); the U-shaped portion (94) is fixedly connected to the corresponding spring (2017); and the curved portion of the limiting portion one (91) is fixedly connected to the corresponding spring (2017).

9. A welding device for construction according to claim 8, characterized in that: The fixing block 1 (2), the fixing block 2 (3) and the pressing block (5) are all made of heat-insulating materials.

10. A welding device for construction according to any one of claims 1 to 9, characterized in that: Both the fixing block 1 (2) and the fixing block 2 (3) are provided with chamfers.

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