Inflatable multi-pipe-diameter self-adaptive pipe pile welding and fixing device

Abstract

The invention provides an inflatable multi-pipe-diameter self-adaptive pipe pile welding and fixing device, and relates to the technical field of pipe pile welding, the inflatable multi-pipe-diameter self-adaptive pipe pile welding and fixing device comprises a sleeving assembly, a sliding assembly, a main body part, an adjusting assembly and a welding assembly, the sleeving assembly comprises two nuts, two semicircular hoops and two semicircular inflatable parts, a pipe pile piece to be welded is sleeved with a sleeve piece composed of the two hoops, the sliding assembly comprises two connecting pieces, four driving pieces internally provided with driving motors and four inwards-concave sliding wheels, the main body part comprises a welding equipment main body, and transverse frames and two guide columns are fixed to the upper face and the lower face of the welding equipment main body correspondingly. The hoop is fixed in the mode that the inflation part expands to abut against the pipe pile, fixing is conducted through friction between the inflation part and the pipe pile, the surface of the pipe pile cannot be damaged, it is guaranteed that the surface of the pipe pile is complete, the pulley is pulled through the pull ring on the limiting piece, the hook is separated from the end of the connecting piece, and the pulley can be rapidly clamped to the edge of the hoop under the tension effect of the first spring. And the welding equipment main body can be conveniently mounted.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe pile welding, and more specifically, particularly relates to an inflatable multi-diameter adaptive pipe pile welding and fixing device. Background Art

[0002] In the field of pipe pile construction, the welding and fixing of pipe piles is a key link to ensure the stability of pipe piles and the quality of the project. At present, many problems that need to be solved urgently have emerged in the actual application of traditional welding devices for pipe pile construction and fixing.

[0003] 1. Deficiencies in pipe pile fixing methods: Many existing pipe pile fixing methods, such as directly clamping the pipe pile with a rigid fixture, can achieve fixation. However, during the operation, the rigid fixture directly contacts the surface of the pipe pile and the pressure is concentrated, which is extremely easy to cause scratches, abrasions or even damage to the surface of the pipe pile, affecting the appearance and structural integrity of the pipe pile, and thus may reduce the actual bearing capacity and service life of the pipe pile in the project.

[0004] 2. Poor fixing effect: Some fixing methods only rely on simple mechanical connections. During the welding process, due to the vibration generated by welding and external forces, the fixing structure is prone to looseness, resulting in the displacement of the pipe pile, seriously affecting the welding quality, increasing the risk of rework and construction costs. Moreover, some fixing methods are difficult to adapt to the characteristics of different material pipe piles and cannot reasonably adjust the fixing force and method according to the pipe pile material, resulting in unstable fixing effects.

[0005] 3. Inconvenient adjustment of the welding device: It is difficult to adjust the vertical and horizontal positions. When adjusting the position of the welding torch of the traditional welding device, the operation is complex and the accuracy is low. Vertical adjustment often requires the assistance of complex tools and cumbersome steps, and it is difficult to achieve small and precise height adjustments, resulting in the inability to quickly and accurately position the welding torch when facing welding tasks with different height requirements. The horizontal position adjustment also has similar problems, and it is difficult to flexibly and accurately change the horizontal position of the welding torch, unable to meet the diverse requirements of the welding torch position for complex welding processes, thus affecting the welding effect and efficiency.

[0006] 4. Poor adaptability to pipe diameters: With the diversification of pipe pile applications in engineering construction, different projects may use pipe piles of multiple diameters. However, existing welding devices are usually only applicable to pipe piles of a single diameter or a few diameters. When it is necessary to switch the pipe diameter, it is often necessary to carry out large-scale replacement or modification of the entire device, which is not only cumbersome to operate but also costly, seriously restricting the versatility and construction efficiency of the welding device.

[0007] 5. Safety and reliability issues: High-temperature sparks are generated during the welding process. Traditional welding devices lack effective fire and high-temperature protection measures for pulleys, collars, and pipe pile fixing components. Direct burning by sparks may damage the components, shorten the service life of the device, and even cause safety accidents, posing a potential threat to the personnel and equipment at the construction site.

[0008] In summary, the existing welding devices for fixing pipe piles have many deficiencies in aspects such as pipe pile fixing, welding device adjustment, safety and reliability, and operation convenience, and are difficult to meet the increasing requirements of high quality, high efficiency, and high safety in modern pipe pile construction. Therefore, it is of great practical significance to develop a new type of welding device for fixing pipe piles, and the present invention is carried out based on this background. Summary of the Invention

[0009] To solve the above technical problems, the present invention provides an inflatable multi-diameter self-adaptive pipe pile welding and fixing device to solve the above problems.

[0010] An inflatable multi-diameter self-adaptive pipe pile welding and fixing device includes a sleeving assembly, a sliding assembly, a main body part, an adjustment assembly, and a welding assembly; The sleeving assembly includes two nuts, two semi-circular collars, and two semi-circular inflatable members. A pipe pile member to be welded is sleeved inside the kit composed of the two collars; The sliding assembly includes two connecting members, four driving members with built-in drive motors, and four concave pulleys; The main body part includes a welding equipment main body, and horizontal frames and two guiding columns are fixed on both the upper and lower surfaces of the welding equipment main body; The adjustment assembly includes a connecting frame and a lifting rod. A lifting member and a perforated base are fixedly connected to the lifting rod; The welding assembly includes a rotating base and a sliding rod; Among them, the welding equipment main body is fixed to the connecting frame.

[0011] Preferably, circular holes are provided in the middle part of each collar, semi-circular grooves are provided at both ends of each collar, semi-circular threaded columns are fixed in each semi-circular groove, two inflatable members are respectively fixed on the inner walls of the two collars, and the inflation nozzles of the two inflatable members are respectively located in the two circular holes; Among them, jacks are provided at both ends of one of the collars, and insertion pins are fixedly connected to both ends of the other collar. The two collars are clamped through the insertion pins and jacks. When the two collars are clamped, two pairs of spliced semi-circular threaded columns are respectively threadedly sleeved with the two nuts.

[0012] Preferably, vertical sliding grooves are provided in the middle part of the two connecting members, connecting frames are fixedly connected to the upper and lower ends of the two connecting members, and strip-shaped grooves are provided in the middle part of each connecting frame; Among them, the adjacent ends of the two connecting frames at the upper end are rotatably connected with sleeve blocks, and the adjacent ends of the two connecting frames at the lower end are rotatably connected with the same sleeve blocks. Threaded holes are provided on the upper surfaces of each sleeve block, and rod grooves penetrate through the sides of each sleeve block. A positioning screw is threadedly sleeved in the threaded hole at the upper end.

[0013] Preferably, the output shafts of the four driving members are respectively fixed to the centers of the four pulleys. A sliding member is fixedly connected to each driving member, and a limiting piece is fixed on each sliding member; Among them, a hook and a pull ring are fixed on each limiting piece.

[0014] Preferably, a hanging ring is hung on the pull ring of each limiting piece, and a first spring is fixedly connected between the two hanging rings on the same connecting piece; Among them, the first spring is in a stretched state.

[0015] Preferably, four positioning holes are provided on each cross frame. A side groove is provided on the side of the connecting frame facing the swivel base, a top groove is provided on the upper surface of the connecting frame, two L-shaped cogs are fixedly connected to the upper surface of the connecting frame. A rotating rod is rotatably sleeved in the top groove, the rod surface of the rotating rod is a threaded surface, a rectangular section is fixedly connected to the top of the rotating rod, and a circular plate is fixed on the rectangular section; Among them, two internal rods are also fixedly connected in the side groove. The internal rods are parallel to the rotating rod, and a second spring is sleeved on the rotating rod.

[0016] Preferably, a gear is clamped between the two cogs. A rectangular hole is provided in the middle part of the gear, a turntable is fixed on the upper surface of the gear, a circular groove is provided in the middle part of the upper surface of the turntable, and a rectangular hole with the same hole shape is provided at the bottom of the circular groove; Among them, the rectangular section is sleeved in the rectangular hole and the rectangular hole, and the circular plate is clamped in the circular groove.

[0017] Preferably, a threaded hole is provided in the middle part of the lifting member. Holes are provided on both sides of the threaded hole. The lifting member is located in the side groove. The two holes on the lifting member are respectively movably sleeved with the two internal rods. The threaded hole on the lifting member is threadedly sleeved with the rotating rod; Among them, the lifting rod is attached to the side wall of the connecting frame.

[0018] Preferably, a middle groove is provided on the lifting rod. A middle rod is fixedly connected in the middle groove. A third spring is sleeved on the middle rod. A slider is movably sleeved on the middle rod. A stop member and a lifting block are respectively fixed at both ends of the slider. An octagonal rod is fixed to the bottom surface of the lifting block. The third spring is located between the slider and the top surface of the middle groove; Among them, a short rod is fixedly connected to the bottom surface of the swivel base. An octagonal groove is formed on the upper surface of the swivel base. The octagonal groove is movably sleeved with an octagonal rod. A baffle and two columns are also fixedly connected to the upper surface of the swivel base. A slide rod is movably sleeved between the two columns. A fourth spring is sleeved on the slide rod. A retaining ring is fixed to the middle part of the slide rod. Clamping plates and pulling members are respectively fixedly connected to both ends of the slide rod.

[0019] Preferably, a clamping screw is threadedly sleeved on the baffle. A bracket is also fixedly connected to the swivel base. A switch screw is threadedly sleeved on the top of the bracket. A welding torch is clamped between the column and the baffle. The retaining ring is located between the two columns. The short rod is rotatably sleeved in the hole on the upper surface of the base. Four pulleys are stuck on the upper and lower edges of the ferrule. The positioning screw passes through the threaded hole and is inserted into the corresponding positioning hole. Partition plates are fixed around the slide rod and the two columns.

[0020] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the ferrule is fixed by the inflation member expanding and pressing against the pipe pile. The friction between the inflation member and the pipe pile is used for fixation, which will not damage the surface of the pipe pile and ensure the integrity of the pipe pile surface. The two ferrules are quickly fixed into a complete ring through the jacking hole, the plug, the semi-circular threaded column and the nut. Then the inflation member is inflated to 0.1 - 0.3 MPa (set according to the table based on the pipe pile material). It can quickly and stably fix the ferrule on the surface of the pipe pile. And the cooperation between the semi-circular threaded column and the nut ensures that the locking force is greater than the inflation expansion force, guaranteeing the stability of the fixation. The inflation member is made of nitrile rubber with a thickness of 5 - 8 mm, which can ensure uniform elastic deformation and further enhance the fixation effect.

[0021] In the present invention, the pulley is pulled by the pull ring on the limit piece to disengage the hook from the end of the connecting member. Under the pulling force of the first spring, the pulley can quickly be stuck on the edge of the ferrule, conveniently completing the installation of the main body of the welding equipment. By holding the turntable and moving it upward to disengage the gear from the tooth engagement limit, rotating the turntable drives the rotating rod to rotate, and then drives the lifting member to lift and lower, realizing the fine vertical adjustment of the height of the welding torch on the lifting rod. And the limitation of the gear by the tooth engagement during welding ensures the stability of the rotating rod, ensuring the accurate position of the welding torch during the welding process. By moving the lifting block upward to disengage the octagonal rod from the octagonal groove, the swivel base can be deflected, thereby flexibly changing the horizontal position of the welding torch. Combined with the vertical fine adjustment, the positioning of the welding torch is more accurate, significantly improving the welding effect. At the same time, the elastic force parameter of the third spring ≥ 10 N, which can effectively prevent the self-rotation of the swivel base caused by the welding vibration and ensure reliable locking.

[0022] In the present invention, for common pipe piles with outer diameters of 300 mm, 400 mm, 500 mm, and 600 mm, four corresponding positioning holes are provided on the cross frame. When switching the pipe pile size, the positioning screw is rotated to disengage it from the positioning hole, and the sleeve block is moved along the cross frame. In cooperation with the sliding of the guide post in the strip-shaped groove, the angle of the pulley is deflected, so that the concave angle of the pulley adapts to pipe piles with different pipe diameters, greatly improving the applicability of the device, and the adjustment process is simple.

[0023] In the present invention, a high-temperature resistant coating is added to the surfaces of the pulley and the ferrule, and the outside of the inflatable member is covered with a fireproof cloth (such as fiberglass cloth), which can effectively prevent the direct burning of welding sparks and improve the safety of the device during the welding process. A washer is installed on the nut to prevent the nut from loosening under conditions such as welding vibration, ensuring the stability and reliability of the overall structure of the device. An anti-slip coating is provided at the end of the octagonal rod to enhance the stability of the cooperation between the octagonal rod and the octagonal groove, further ensuring the reliability of the device during use.

[0024] In the present invention, after the welding torch enters the working state, the driving motor in the remote control driving member is rotated to drive the pulley to rotate, realizing the automatic circular motion of the welding torch, which is convenient for welding operations on the pipe pile. An infrared remote control signal is adopted, and the remote control device is provided with start, stop, acceleration, and deceleration buttons. The speed regulation range of the driving motor is 0 - 5 rpm, which is convenient for the operator to remotely control the welding process and improves the convenience and flexibility of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the schematic diagram of the overall structure of the present invention; Figure 2 is the schematic diagram of the structure of the ferrule in the present invention; Figure 3 is the present invention Figure 2 the enlarged schematic diagram of part A; Figure 4 is the schematic diagram of the structure of the lifting rod in the present invention; Figure 5 is the schematic diagram of the structure of the main body of the welding equipment in the present invention; Figure 6 is the schematic diagram of the structure of the connecting frame in the present invention; Figure 7 is the schematic diagram of the structure of the turntable in the present invention; Figure 8 is the schematic diagram of the structure of the sliding rod in the present invention; Figure 9 is the present invention Figure 6 the enlarged schematic diagram of part C; Figure 10 is the schematic diagram of the structure of the connecting piece in the present invention; Figure 11 is the schematic diagram of the structure of the pulley in the present invention; Figure 12 is the enlarged structural schematic diagram at position B in the present invention Figure 10 in the present invention

[0026] In the figure, the corresponding relationship between the structural names and the reference numerals is as follows: 1, pipe pile member; 2, ferrule; 3, connecting member; 4, swivel base; 5, main body of welding equipment; 6, lifting rod; 7, connecting frame; 8, semi-circular groove; 9, semi-circular threaded column; 10, circular hole; 11, inflatable member; 12, nut; 13, chute; 14, first spring; 15, hanging ring; 16, pulley; 17, driving member; 18, connecting frame; 19, positioning screw; 20, sleeve block; 21, threaded hole; 22, rod groove; 23, sliding member; 24, hook; 25, limiting piece; 26, cross frame; 27, guiding column; 28, positioning hole; 29, side groove; 30, engaging tooth; 31, top groove; 32, rectangular hole; 33, gear; 34, turntable; 35, circular groove; 36, rectangular hole; 37, internal rod; 38, rotating rod; 39, second spring; 40, rectangular section; 41, circular disc; 42, lifting member; 43, intermediate rod; 44, third spring; 45, intermediate groove; 46, base; 47, strip-shaped groove; 48, short rod; 49, octagonal groove; 50, column; 51, bracket; 52, switch screw; 53, baffle; 54, clamping screw; 55, slider; 56, blocking member; 57, octagonal rod; 58, pulling member; 59, partition; 60, sliding rod; 61, fourth spring; 62, retaining ring; 63, clamping plate; 64, lifting block Specific embodiments

[0027] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention

[0028] Please refer to Figures 1 - 12 , the present invention provides an inflatable multi-diameter adaptive pipe pile welding and fixing device, including a sleeving assembly, a sliding assembly, a main body part, an adjusting assembly and a welding assembly. The sleeving assembly includes two nuts 12, two semi-circular ferrules 2 and two semi-circular inflatable members 11. A pipe pile member 1 to be welded is sleeved inside the kit composed of the two ferrules 2. The sliding assembly includes two connecting members 3, four driving members 17 with built-in driving motors and four concave pulleys 16. The main body part includes the main body 5 of the welding equipment. Cross frames 26 and two guiding columns 27 are fixed on the upper and lower surfaces of the main body 5 of the welding equipment. The adjusting assembly includes a connecting frame 7 and a lifting rod 6. A lifting member 42 and a base 46 with holes are fixedly connected to the lifting rod 6. The ferrule 2 is fixed by using the inflatable member 11, and then the welding torch can slide along the ferrule 2 by using the ferrule 2 to complete the welding of the pipe pile, with high stability and convenient adjustment of the position of the welding torch through the swivel base 4 The welding assembly includes a turntable 4 and a slide bar 60. Among them, the main body 5 of the welding equipment is fixed to the connecting frame 7. A circular hole 10 is provided in the middle part of each ferrule 2. A semi-circular groove 8 is provided at both ends of each ferrule 2. A semi-circular threaded column 9 is fixed in each semi-circular groove 8. Two inflatable members 11 are respectively fixed to the inner walls of the two ferrules 2. The inflation nozzles of the two inflatable members 11 are respectively located in the two circular holes 10. Among them, jacks are provided at both ends of one of the ferrules 2, and pins are fixedly connected to both ends of the other ferrule 2. The two ferrules 2 are clamped by the pins and the jacks. When the two ferrules 2 are clamped, two pairs of spliced semi-circular threaded columns 9 are respectively threadedly sleeved with two nuts 12, and the two ferrules 2 are fixed together by the jacks, pins, semi-circular threaded columns 9 and nuts 12 to form a complete collar. Then, the inflatable members 11 in the circular holes 10 are inflated to make them expand and press against the pipe pile until the air pressure reaches 0.1 - 0.3 MPa (set by looking up the table according to the pipe pile material), so that the ferrule 2 can be fixed on the surface of the pipe pile, achieving the effect of quickly fixing the ferrule 2. The ferrule 2 is fixed by the friction between the inflatable member 11 and the pipe pile, which will not damage the surface of the pipe pile and can protect the integrity of the pipe pile surface. The cooperation between the semi-circular threaded column 9 and the nut 12 ensures that the locking force is greater than the inflation expansion force. The material of the inflatable member 11 is nitrile rubber with a thickness of 5 - 8 mm to ensure uniform elastic deformation.

[0029] Vertical sliding grooves 13 are provided in the middle parts of the two connecting members 3. Connecting frames 18 are fixedly connected to the upper and lower ends of the two connecting members 3. A strip-shaped groove 47 is provided in the middle part of each connecting frame 18. Among them, the adjacent ends of the two connecting frames 18 located at the upper end are rotatably connected with a sleeve block 20, and the adjacent ends of the two connecting frames 18 located at the lower end are rotatably connected with the same sleeve block 20. A threaded hole 21 is provided on the upper surface of each sleeve block 20, and a rod groove 22 penetrates through the side surface of each sleeve block 20. A positioning screw 19 is threadedly sleeved in the threaded hole 21 located at the upper end.

[0030] The output shafts of the four driving members 17 are respectively fixed to the centers of the four pulleys 16. A sliding member 23 is fixedly connected to each driving member 17. A limiting piece 25 is fixed on each sliding member 23. Among them, a hook 24 and a pull ring are fixed on each limiting piece 25.

[0031] A pull ring on each limiting piece 25 is hung with a hanging ring 15, and a first spring 14 is fixedly connected between two hanging rings 15 on the same connecting piece 3. Among them, the first spring 14 is in a stretched state. Four positioning holes 28 are opened on each cross frame 26. A side groove 29 is opened on one side of the connecting frame 7 facing the swivel base 4. A top groove 31 is opened on the upper surface of the connecting frame 7. Two L-shaped cogs 30 are fixedly connected to the upper surface of the connecting frame 7. A rotating rod 38 is rotatably sleeved in the top groove 31. The rod surface of the rotating rod 38 is a threaded surface. A rectangular section 40 is fixedly connected to the top of the rotating rod 38. A circular plate 41 is fixed on the rectangular section 40. Among them, two internal rods 37 are also fixedly connected in the side groove 29. The internal rods 37 are parallel to the rotating rod 38. A second spring 39 is sleeved on the rotating rod 38.

[0032] A gear 33 is clamped between the two cogs 30. A rectangular hole 32 is opened in the middle part of the gear 33. A turntable 34 is fixed on the upper surface of the gear 33. A circular groove 35 is opened in the middle part of the upper surface of the turntable 34. A rectangular hole 36 with the same hole shape is opened at the bottom of the circular groove 35. Among them, the rectangular section 40 is sleeved in the rectangular hole 36 and the rectangular hole 32, and the circular plate 41 is clamped in the circular groove 35.

[0033] The middle part of the lifting member 42 is provided with a threaded hole, and holes are provided on both sides of the threaded hole. The lifting member 42 is located in the side groove 29. Two holes on the lifting member 42 are respectively movably sleeved with two inner rods 37. The threaded hole on the lifting member 42 is threadedly sleeved with the rotating rod 38. Among them, the lifting rod 6 is attached to the side wall of the connecting frame 7. An intermediate groove 45 is provided on the lifting rod 6. An intermediate rod 43 is fixedly connected in the intermediate groove 45. A third spring 44 is sleeved on the intermediate rod 43. A slider 55 is movably sleeved on the intermediate rod 43. A stop member 56 and a lifting block 64 are respectively fixed at both ends of the slider 55. An octagonal rod 57 is fixed to the bottom surface of the lifting block 64. The third spring 44 is located between the slider 55 and the top surface of the intermediate groove 45. Among them, a short rod 48 is fixedly connected to the bottom surface of the swivel base 4. An octagonal groove 49 is provided on the upper surface of the swivel base 4. The octagonal groove 49 is movably sleeved with the octagonal rod 57. A baffle 53 and two upright columns 50 are also fixedly connected to the upper surface of the swivel base 4. A slide rod 60 is movably sleeved between the two upright columns 50. A fourth spring 61 is sleeved on the slide rod 60. A retaining ring 62 is fixed to the middle part of the slide rod 60. Clamping plates 63 and a pulling member 58 are respectively fixed to both ends of the slide rod 60. A clamping screw 54 is threadedly sleeved on the baffle 53. A bracket 51 is also fixedly connected to the swivel base 4. A switch screw 52 is threadedly sleeved on the top of the bracket 51. A welding torch is clamped between the upright column 50 and the baffle 53. The retaining ring 62 is located between the two upright columns 50. The short rod 48 is rotatably sleeved in the hole on the upper surface of the base 46. After fixing the position of the ferrule 2, bring the connecting member 3 close to the ferrule 2. Pull the pulley 16 by using the pull ring on the limiting piece 25 to disengage the hook 24 from the end of the connecting member 3. The hook 24 is an elastic member. The operator can slightly bend the hook 24 so that it is no longer blocked by the connecting member 3. At this time, under the pulling force of the first spring 14, the pulley 16 will be stuck on the edge of the ferrule 2. Under the same operation, the four pulleys 16 will stick to the upper and lower edges of the ferrule 2 to complete the installation of the welding equipment main body 5; Grasp the turntable 34 and move it upward, driving the gear 33 to disengage from the restriction of the two ratchet teeth 30 until the disc 41 is blocked by the bottom of the circular groove 35. At this time, the turntable 34 can be rotated to drive the rotating rod 38 to rotate, thereby driving the lifting member 42 to lift and lower, achieving the effect of moving the height of the welding torch on the lifting rod 6 and facilitating fine vertical adjustment of the position of the welding torch. During the welding process, due to the restriction of the ratchet teeth 30 on the gear 33, the rotating rod 38 cannot deflect, maintaining sufficient stability.

[0034] The table of the angle of the pulley 16 adapted to different pipe diameter pipe piles and the sliding relationship with the guide post 27 is as follows (based on geometric transmission principles and engineering measurement data):

[0035] A high-temperature resistant coating is added to the surfaces of the pulley 16 and the ferrule 2, and a fireproof cloth (such as fiberglass cloth) is covered on the outside of the inflatable member 11 to prevent direct burning by sparks. After inflation, a pressure gauge can be connected to the air nozzle in the round hole 10 to observe the pressure value, and the inflation pressure can be accurately adjusted. A washer is installed on the nut 12 to prevent loosening, and an anti-slip coating is provided at the end of the octagonal rod 57.

[0036] Four pulleys 16 are stuck on the upper and lower edges of the ferrule 2. The positioning screw 19 passes through the threaded hole 21 and is inserted into the positioning hole 28 at the corresponding position. Partition plates 59 are fixed around the sliding rod 60 and the two columns 50. The elastic material of the hook 24 is spring steel, and a rubber pad (Shore hardness 60A) is provided on the inner side of the clamping plate 63, and the clamping force is ensured by the pre-tightening force (50N) of the spring four 61.

[0037] Working principle: When the present invention is in use, the inflatable member 11 is used to fix the ferrule 2, and then the welding torch can slide along the ferrule 2 by using the ferrule 2 to complete the welding of the pipe pile. The stability is high, and it is convenient to adjust the position of the welding torch through the swivel base 4. Specifically as follows: Two ferrules 2 are fixed together by the jack, the pin, the semi-circular threaded column 9 and the nut 12 to form a complete ring. Then, the air nozzles in the round holes 10 are used to inflate the two inflatable members 11 to make them expand and press against the pipe pile. Inflate to a pressure of 0.1 - 0.3 MPa (set by looking up the table according to the pipe pile material), so that the ferrule 2 can be fixed on the surface of the pipe pile, achieving the effect of quickly fixing the ferrule 2. The inflatable member 11 is fixed by friction with the pipe pile and will not damage the surface of the pipe pile, and can protect the integrity of the pipe pile surface. The cooperation of the semi-circular threaded column 9 and the nut 12 ensures that the locking force is greater than the inflation expansion force. The material of the inflatable member 11 is nitrile rubber with a thickness of 5 - 8 mm to ensure uniform elastic deformation; After fixing the position of the ferrule 2, move the connecting member 3 close to the ferrule 2, and use the pull ring on the limiting piece 25 to pull the pulley 16 so that the hook 24 is disengaged from the end of the connecting member 3. The hook 24 is an elastic member, and the operator can slightly bend the hook 24 so that it is no longer blocked by the connecting member 3. At this time, under the pulling force of the spring one 14, the pulley 16 will be stuck on the edge of the ferrule 2. Under the same operation, the four pulleys 16 will hold the upper and lower edges of the ferrule 2 to complete the installation of the welding equipment main body 5; Hold the turntable 34 and move it upward, driving the gear 33 to disengage from the restriction of the two ratchet teeth 30 until the disc 41 is blocked by the bottom of the circular groove 35. At this time, the turntable 34 can be rotated to drive the rotating rod 38 to rotate, thereby driving the lifting member 42 to lift and lower, achieving the effect of moving the height of the welding torch on the lifting rod 6, and facilitating fine vertical adjustment of the position of the welding torch. During the welding process, due to the restriction of the ratchet teeth 30 on the gear 33, the rotating rod 38 cannot deflect, maintaining sufficient stability; By moving the lifting block 64 upward, the octagonal rod 57 is separated from the octagonal groove 49. At this time, the swivel seat 4 can be deflected, thereby changing the horizontal position of the welding gun, which is convenient for fine-tuning the horizontal position of the welding gun. In conjunction with the above-mentioned fine-tuning of the vertical position of the welding gun, the welding gun is accurately positioned, thereby improving the welding effect. The elastic force parameter of the spring 3 44 is ≥10N, which prevents the swivel seat 4 from rotating due to welding vibration and ensures locking reliability. For pipe piles of different sizes, ferrules 2 of different sizes can be prepared. Common outer diameters of pipe piles are generally 300mm, 400mm, 500mm, and 600mm. The four positioning holes 28 on the cross frame 26 correspond to the four sizes respectively. When the pipe piles of different sizes are switched, the positioning screw 19 is rotated to disengage the positioning hole 28, and the sleeve block 20 is moved along the cross frame 26, and the guide column 27 slides in the strip groove 47, so that the connecting frame 18 and the connecting member 3 drive the pulley 16 to deflect the angle, so that the concave angle of the pulley 16 can adapt to pipe piles of different sizes, which improves the applicability and is very convenient for adjustment; During use, by rotating the switch screw 52 to push against the switch key of the welding gun, the welding gun enters the working state, the driving member 17 is electrically connected to the welding equipment body 5, and the welding equipment body 5 is externally powered. After the welding gun enters the working state, the driving motor in the remote control driving member 17 is rotated to drive the pulley 16 to rotate, completing the automatic circular motion of the welding gun. Using infrared remote control signals, the remote control device is provided with start, stop, acceleration and deceleration buttons, and the speed adjustment range of the driving motor is 0-5rpm.

[0038] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An inflatable multi-diameter adaptive pipe pile welding and fixing device, characterized in that: The welding device for fixing pipe pile construction comprises a set assembly, a sliding assembly, a main body, an adjustment assembly and a welding assembly; The set assembly comprises two nuts (12), two semicircular hoops (2) and two semicircular inflatable pieces (11), wherein the set assembly consisting of the two hoops (2) contains the pipe pile piece (1) to be welded; The sliding assembly comprises two connecting members (3), four driving members (17) with built-in driving motors, and four concave pulleys (16); The main body part comprises a welding device body (5), and a cross frame (26) and two guide columns (27) are fixed on the upper and lower surfaces of the welding device body (5); The adjustment assembly comprises a connecting frame (7) and a lifting rod (6), wherein a lifting member (42) and a base (46) with a hole are fixedly connected to the lifting rod (6); The welding assembly includes a swivel seat (4) and a slide rod (60); The welding equipment body (5) is fixed to the connecting frame (7).

2. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 1, characterized in that: A circular hole (10) is formed in the middle of each ferrule (2), a semicircular groove (8) is formed at both ends of each ferrule (2), a semicircular threaded column (9) is fixed in each semicircular groove (8), two inflatable members (11) are respectively fixed to the inner walls of the two ferrules (2), and the inflatable nozzles of the two inflatable members (11) are respectively located in the two circular holes (10); Wherein, both ends of one of the ferrules (2) are provided with insertion holes, and both ends of the other ferrule (2) are fixedly connected with insertion pins, and the two ferrules (2) are clamped together through the insertion pins and the insertion holes. When the two ferrules (2) are clamped together, two pairs of semicircular threaded columns (9) spliced ​​together are respectively threadedly sleeved with two nuts (12).

3. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 2, characterized in that: A vertical slide groove (13) is provided in the middle of the two connecting members (3); a connecting frame (18) is fixedly connected to the upper and lower ends of the two connecting members (3); and a strip groove (47) is provided in the middle of each connecting frame (18); The adjacent ends of the two connecting frames (18) at the upper end are rotatably connected to the sleeve blocks (20), and the adjacent ends of the two connecting frames (18) at the lower end are rotatably connected to the same sleeve blocks (20). A threaded hole (21) is formed on the upper surface of each sleeve block (20), and a rod groove (22) is penetrated through the side surface of each sleeve block (20). A positioning screw (19) is threadedly sleeved on the inner thread of the threaded hole (21) at the upper end.

4. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 3, characterized in that: The output shafts of the four driving members (17) are respectively fixed to the axis centers of the four pulleys (16); each driving member (17) is fixedly connected to a sliding member (23); and each sliding member (23) is fixed with a limiting plate (25); Wherein, a hook (24) and a pull ring are fixed on each limiting piece (25).

5. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 4, characterized in that: A hanging ring (15) is hung on the pull ring on each limiting piece (25), and a spring 1 (14) is fixedly connected between the two hanging rings (15) on the same connecting piece (3); Among them, spring 1 (14) is in a stretched state.

6. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 5, characterized in that: Each cross frame (26) is provided with four positioning holes (28); a side groove (29) is provided on the side of the connecting frame (7) facing the rotating seat (4); a top groove (31) is provided on the upper surface of the connecting frame (7); two L-shaped latch teeth (30) are fixedly connected to the upper surface of the connecting frame (7); a rotating rod (38) is rotatably sleeved in the top groove (31); the rod surface of the rotating rod (38) is a threaded surface; a rectangular section (40) is fixedly connected to the top of the rotating rod (38); and a disc (41) is fixed to the rectangular section (40); Two internal rods (37) are fixedly connected in the side groove (29), the internal rods (37) are parallel to the rotating rod (38), and a second spring (39) is sleeved on the rotating rod (38).

7. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 6, characterized in that: A gear (33) is clamped between the two clamping teeth (30), a rectangular hole (32) is provided in the middle of the gear (33), a rotating disk (34) is fixed on the upper surface of the gear (33), a circular groove (35) is provided in the middle of the upper surface of the rotating disk (34), and a rectangular hole (36) of the same hole shape is provided at the bottom of the circular groove (35); The rectangular section (40) is sleeved in the rectangular hole (36) and the rectangular hole (32), and the round piece (41) is stuck in the round groove (35).

8. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 7, characterized in that: A threaded hole is formed in the middle of the lifting member (42), and holes are formed on both sides of the threaded hole. The lifting member (42) is located in the side groove (29), and the two holes on the lifting member (42) are respectively movably sleeved with the two internal rods (37), and the threaded hole on the lifting member (42) is threadedly sleeved with the rotating rod (38); The lifting rod (6) is fitted onto the side wall of the connecting frame (7).

9. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 8, characterized in that: The lifting rod (6) is provided with an intermediate groove (45), an intermediate rod (43) is fixedly connected in the intermediate groove (45), a spring three (44) is sleeved on the intermediate rod (43), a slider (55) is movably sleeved on the intermediate rod (43), a stopper (56) and a lifting block (64) are respectively fixed at both ends of the slider (55), an octagonal rod (57) is fixed on the bottom surface of the lifting block (64), and the spring three (44) is located between the slider (55) and the top surface of the intermediate groove (45); The bottom surface of the rotating seat (4) is fixedly connected with a short rod (48), the upper surface of the rotating seat (4) is provided with an octagonal groove (49), the octagonal groove (49) is movably sleeved with the octagonal rod (57), the upper surface of the rotating seat (4) is also fixedly connected with a baffle (53) and two columns (50), the sliding rod (60) is movably sleeved between the two columns (50), the sliding rod (60) is sleeved with a spring (61), the middle part of the sliding rod (60) is fixed with a baffle ring (62), and the two ends of the sliding rod (60) are respectively fixedly connected with a clamping plate (63) and a pull piece (58).

10. The inflatable multi-diameter adaptive pipe pile welding and fixing device as claimed in claim 9, characterized in that: A clamping screw (54) is threadedly sleeved on the baffle (53), a bracket (51) is also fixedly connected to the rotating seat (4), a switch screw (52) is threadedly sleeved on the top of the bracket (51), a welding gun is clamped between the column (50) and the baffle (53), a baffle ring (62) is located between the two columns (50), and a short rod (48) is rotatably sleeved in a hole on the upper surface of the base (46); Four pulleys (16) are clamped on the upper and lower edges of the hoop (2), the positioning screw (19) passes through the threaded hole (21) and is inserted into the positioning hole (28) at the corresponding position, and a partition plate (59) is fixed around the sliding rod (60) and the two columns (50).

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