A fixing device for heating pipeline construction

Abstract

The present invention relates to the field of heating pipeline construction, and specifically to a fixing device for heating pipeline construction, comprising two symmetrically arranged arcuate plates, one end of the two arcuate plates being rotatably connected by two symmetrically arranged connecting rods, and the other ends of the two arcuate plates being vertically extended upward with locking parts, the two locking parts being connected by bolts and nuts, and the two arcuate plates are locked on the heating pipeline; the fixing device can be flexibly installed and extruded to correct the heating pipeline in grooves with restricted operation, and can be applied to various misalignment situations of the heating pipeline, with a wide range of applications. At the same time, during the extrusion correction process, a stable extrusion force can be maintained on the heating pipeline, so that the ports of the heating pipeline remain aligned during spot welding, providing a guarantee for subsequent sealing and full welding.

Description

Technical Field

[0001] The invention relates to the field of heating pipeline construction, in particular to a fixing device for heating pipeline construction. Background Art

[0002] There are three main methods for laying heating pipes. The first is overhead installation, where the pipes are installed on independent supports above ground or on brackets attached to walls or columns. The second is trench installation, where the pipes are placed in a pre-dug trench and covered. The third is direct burial, where the heating pipes are buried directly underground. This method is suitable for locations with good geological conditions and low groundwater levels.

[0003] Among them, direct burial laying has the advantages of saving investment costs and shortening construction period, but it has high requirements for pipeline construction technology. A trench is excavated on the ground, the pipeline is laid in the trench, and then welding is performed. In particular, one end of the two pipelines has been welded and fixed, and the other ends of the two pipelines need to be welded together. This welding situation is more challenging for welding methods and techniques. The other ends of the two pipelines are prone to horizontal misalignment, that is, the axes of the two pipelines are not in the same straight line. The reason for this situation is generally caused by the misaligned laying of multiple sections of pipelines at the front end, that is, one section of the pipeline is slightly tilted, causing multiple sections of pipelines to be slightly misaligned in succession and accumulated together, eventually resulting in obvious misalignment of the other ends of the two pipelines. For this misalignment, the current operation is generally carried out by using wood such as sticks and boards to support the pipeline, and the cylindrical pipeline support point is easy to slip. Moreover, it is inconvenient to operate in a trench with limited space.

[0004] Therefore, in order to solve the above problems, a fixing device for heating pipeline construction is proposed. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a fixing device for heating pipe construction according to the present invention comprises two symmetrically arranged arc-shaped plates, one end of the two arc-shaped plates being rotatably connected by two symmetrically arranged connecting rods, and the other ends of the two arc-shaped plates having locking portions extending vertically upward, the two locking portions being connected by bolts and nuts, and the two arc-shaped plates being locked to the heating pipe;

[0007] An extrusion assembly is set on one side of the curved plate, and the extrusion assembly includes a fixed plate. A slide groove is opened in the middle of the fixed plate, and the slide groove is set along the length direction of the fixed plate. A screw rod is rotatably connected in the slide groove, and a push block is threadedly connected to the screw rod. The push block slides along the upper surface of the fixed plate. A push rod is rotatably connected to the push block, and the end of the push rod is rotatably connected to a push pin, and the end of the push pin is embedded in a fixed hole opened on the outer wall of the curved plate.

[0008] Preferably, a plurality of strip holes are provided on the fixed plate, the strip holes are arranged on both sides of the slide groove, and limiting grooves are provided on both sides of the upper edge of each strip hole;

[0009] An anchor rod is arranged in each strip hole, the lower end of the anchor rod is arranged with a pointed end, and the upper end of the anchor rod is symmetrically provided with a limiting plate which can be inserted into the limiting groove.

[0010] Preferably, a support rod is symmetrically provided at the middle position of the inner side of each arc-shaped plate, the middle position of each support rod is bent toward the middle position of the two adjacent arc-shaped plates, and an arc-shaped extrusion plate is provided at the bending point of the two adjacent support rods, and a triangular rib plate is fixed to the back of the extrusion plate, and a mounting hole is provided on the rib plate, and the mounting hole cooperates with the pin provided at the bending point on the support rod;

[0011] The middle positions of the two connecting rods are bent toward the middle positions of the two adjacent arc-shaped plates, and an extrusion plate is also provided between the bending points of the two connecting rods.

[0012] Preferably, slots are provided on both sides of the inner surface of the extrusion plate connected between adjacent support rods, an arc-shaped extension plate is provided in the slot, and a clip that fits the slot is provided on one side of the extension plate. The clip slides into the upper notch of the slot, and the extension plate cooperates with the extrusion plate to be squeezed onto the heating pipe.

[0013] Preferably, a positioning rod is provided at the tip of each rib plate, and the positioning rod is inserted into the inner ring of the spring provided at the middle position of the inner side wall of the arc-shaped plate.

[0014] Preferably, notches are provided on the two locking parts, a swivel is rotatably connected in the notch, the rotating shafts at both ends of the swivel pass through the outside of the locking part, a through hole is provided in the middle of the swivel, and the bolt passes through the through hole;

[0015] A jack is radially provided on the rotating shaft at one end of each swivel, and a ratchet is fixedly connected to the outer ring of the rotating shaft at the other end of each swivel. The ratchet is engaged with a pawl, and the pawl is rotatably connected to the outer side wall of the locking portion through a torsion spring.

[0016] Preferably, a plurality of C-shaped supporting plates are symmetrically fixed on the outer side wall of each arc-shaped plate, and a locking assembly is provided between two opposing supporting plates on the two arc-shaped plates, each locking assembly comprising two pull rods, one end of one of the pull rods being rotatably connected to a threaded cylinder, the other end of one of the pull rods being embedded in the supporting plate, and the other end surface of one of the pull rods being fixed to a rotating plate;

[0017] One end of the other pull rod is rotatably connected to a screw connected to a matching threaded barrel, the other end of the other pull rod is embedded in the supporting plate, and the other end surface of the other pull rod is fixedly connected to a rotating plate.

[0018] Preferably, the end surfaces opposite to each other of the two supporting plates are provided with inclined surfaces.

[0019] Preferably, a plurality of fixing grooves are evenly arranged on each inclined surface; and a protrusion adapted to the fixing groove is provided on the surface of each rotating plate.

[0020] Preferably, each extension plate is provided with a handle.

[0021] Compared with the prior art, the present invention is beneficial in that:

[0022] 1. The fixing device for heating pipe construction described in the present invention can be flexibly installed and squeeze-corrected for heating pipes in grooves with restricted access. It is also applicable to various misalignment situations of heating pipes and has a wide range of applications. At the same time, during the squeezing and correction process, it can maintain a stable squeezing force on the heating pipe, so that the heating pipe ports remain aligned during spot welding, providing a guarantee for subsequent sealing and full welding.

[0023] 2. The fixing device for heating pipe construction described in the present invention straightens the welding ends of the two heating pipes through the extrusion component and the arc plate, and then installs the locking component on the arc plate, which can connect the arc plates of the two heating pipes together, improve the integrity and stability, and further ensure the smooth progress of spot welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A first perspective perspective view of the fixing device of the present invention;

[0025] Figure 2 A second perspective view of the fixing device of the present invention;

[0026] Figure 3 is a top view of the fixing device of the present invention;

[0027] Figure 4 is a side view of the fixing device of the present invention;

[0028] Figure 5 A perspective view of an extrusion assembly according to the present invention;

[0029] Figure 6 A three-dimensional diagram of the anchor rod of the present invention;

[0030] Figure 7 This is a schematic diagram of the misaligned state of the heating pipe in the present invention;

[0031] Figure 8A three-dimensional diagram of the coordination of the curved plate and the extrusion assembly in the present invention;

[0032] Figure 9 A three-dimensional diagram of the curved plate of the present invention;

[0033] Figure 10 It is a schematic diagram of a partial cross-section structure of the curved plate in the present invention;

[0034] Figure 11 A three-dimensional diagram of the cooperation between the extrusion plate and the extension plate in the present invention;

[0035] Figure 12 A perspective view of an extruded plate according to the present invention;

[0036] Figure 13 A three-dimensional diagram of the cooperation of two tie rods in the present invention;

[0037] Figure 14 A perspective view of a threaded barrel according to the present invention;

[0038] Figure 15 It is a three-dimensional diagram of the screw in the present invention.

[0039] Figure: 1, curved plate; 2, connecting rod; 3, locking part; 4, bolt; 5, heating pipe; 6, fixing plate; 7, slide groove; 8, screw rod; 9, push block; 10, ejector rod; 11, ejector pin; 12, fixing hole; 13, driven gear; 14, driving gear; 15, handle; 16, strip hole; 17, limit groove; 18, anchor rod; 19, limit plate; 20, support rod; 21, extrusion plate; 22, rib Plate; 23. Mounting hole; 24. Latch; 25. Slot; 26. Extension plate; 27. Clip; 28. Positioning rod; 29. Spring; 30. Notch; 31. Rotator; 32. Through hole; 33. Socket; 34. Ratchet; 35. Pawl; 36. Support plate; 37. Pull rod; 38. Threaded barrel; 39. Rotating plate; 40. Screw; 41. Inclined surface; 42. Fixing groove; 43. Protrusion; 44. Handle. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0041] Reference Figure 1 - Figure 10, a fixing device for the construction of a heating pipe comprises two symmetrically arranged arc-shaped plates 1, one end of the two arc-shaped plates 1 is rotatably connected by two symmetrically arranged connecting rods 2, the other end of the two arc-shaped plates 1 is vertically extended with a locking part 3, the two locking parts 3 are connected by bolts 4 and nuts, and the two arc-shaped plates 1 are locked on the heating pipe 5; an extrusion assembly is provided on one side of the arc-shaped plate 1, the extrusion assembly comprises a fixed plate 6, a slide groove 7 is provided in the middle of the fixed plate 6, the slide groove 7 is arranged along the length direction of the fixed plate 6, a screw rod 8 is rotatably connected in the slide groove 7, a push block 9 is threadedly connected to the screw rod 8, the push block 9 slides along the upper surface of the fixed plate 6, a push rod 10 is rotatably connected to the push block 9, and the end of the push rod 10 is rotatably connected to the push pin 11, and the end of the push pin 11 is embedded in the arc-shaped plate 1 In the fixing hole 12 opened on the outer wall; In this embodiment, the designed fixing device is used to correct the misaligned pipe in the groove. When used, first wrap the two curved plates 1 around the end of the heating pipe 5, close to its welding point, and adjust the positions of the two curved plates 1 so that the connecting rod 2 is placed below the heating pipe 5 and the locking part 3 is placed above the heating pipe 5. Then, the two adjacent locking parts 3 are fastened together by means of bolts 4 and nuts. At this time, the two curved plates 1 are fastened to the heating pipe 5. Then, the extrusion assembly is installed and the end of the ejector pin 11 is inserted into the fixing hole 12. By setting the fixing hole 12 in the lower half of the curved plate 1, the fixing hole 12 at this position cooperates with the extrusion assembly to effectively realize the horizontal correction of the heating pipe 5.

[0042] The ejector pin 11 is pushed into the fixing hole 12 near the bottom, which can not only realize the horizontal correction of the heating pipe 5, but also correct its vertical misalignment; the fixing plate 6 can be stepped on and stabilized in the groove, and then the screw rod 8 is rotated. In this embodiment, one end of the screw rod 8 is fixed with a driven tooth 13, and the driven tooth 13 is engaged with the driving tooth 14. The driving tooth 14 is provided with a handle 15. The handle 15 can rotate the driving tooth 14, and the driving tooth 14 will drive the screw rod 8 to rotate forward and reverse through the driven tooth 13. When the screw rod 8 rotates forward, the screw rod 8 pushes the slider to move toward the heating pipe 5, and the slider pushes the ejector pin 10. The ejector pin 10 squeezes the heating pipe 5, causing the end of the heating pipe 5 to be displaced. The other heating pipe 5 is also operated according to the above process.

[0043] There are generally three situations in which the heating pipe 5 is misaligned. As for how to arrange the extrusion components, it needs to be determined according to the actual situation, such as Figure 7 -a shows that the two heating pipes 5 are inclined to the same side, and the extrusion components can be arranged on the same side of the two heating pipes 5; Figure 7 -b shows two heating pipes 5, one of which is in a relatively regular state, while the other is in a state of obvious inclination. An extrusion component can be arranged on the inclined side. Figure 7-c shows two heating pipes 5 each tilted in different directions, and an extrusion assembly can be arranged on each tilted side;

[0044] During adjustment, slowly turn the handle 15 to drive the push rod 10 to slowly squeeze the heating pipe 5, and constantly check the correction range of the welding end of the heating pipe 5 to ensure that the welding ends of the heating pipe 5 are accurately and neatly aligned. After the correction reaches the expected state, pre-fix the two heating pipes 5 together by spot welding, then remove the fixing device, and finally perform full welding.

[0045] This fixing device can be flexibly installed and squeeze-corrected for grooves with restricted operation, and can be applied to various misalignment situations of the heating pipe 5, with a wide range of applications. At the same time, during the squeezing and correction process, it can maintain a stable squeezing force on the heating pipe 5, so that during spot welding, the ports of the heating pipe 5 remain aligned, providing a guarantee for subsequent sealing and full welding.

[0046] Reference Figure 1 - Figure 10 , a plurality of strip holes 16 are provided on the fixed plate 6, the strip holes 16 are arranged on both sides of the slide groove 7, and a limiting groove 17 is provided on both sides of the upper edge of each strip hole 16;

[0047] An anchor rod 18 is provided in each strip-shaped hole 16. The lower end of the anchor rod 18 is pointed. The upper end of the anchor rod 18 is symmetrically provided with a limiting plate 19 that can be inserted into the limiting groove 17.

[0048] When the fixing device was initially designed, it was considered that conventional fixing devices would require multiple people to operate, which would take up more manpower. Therefore, in this embodiment, an optimized solution was adopted so that one person could also operate the fixing device.

[0049] Specifically, by inserting the anchor rod 18 into the strip hole 16 and pushing the fixing plate 6 toward the heating pipe 5, the push rod 10 can be squeezed on the heating pipe 5 with force, and then the anchor rod 18 is knocked into the ground, and the limit plate 19 on the anchor rod 18 is embedded in the limit groove 17. At this time, the fixing plate 6 is fixed by multiple anchor rods 18, so that the operator does not need to step on the fixing plate 6 to observe the inclination of the heating pipe 5, and then turn the handle 15 to drive the push rod 10 to continue squeezing the heating pipe 5, thereby correcting the end of the heating pipe 5, improving construction efficiency, reducing manpower, and saving labor costs;

[0050] The design of the limit plate 19 on the anchor rod 18 and the upper limit groove 17 on the fixing plate 6 takes into account that there are some hard objects such as gravel and bricks under the ground, which will hinder the insertion of the anchor rod 18. When the anchor rod 18 encounters a hard object, the anchor rod 18 needs to be taken out and inserted into a new position point along the strip hole 16 again, so as to avoid the hard object, so that the anchor rod 18 can be smoothly inserted into the ground and effectively fix the fixing plate 6.

[0051] Reference Figure 1 - Figure 10 A support rod 20 is symmetrically provided at the middle position of the inner side of each arc-shaped plate 1. The middle position of each support rod 20 is bent toward the middle position of the two adjacent arc-shaped plates 1, and an arc-shaped extrusion plate 21 is provided at the bending point of the two adjacent support rods 20. A triangular rib plate 22 is fixed to the back of the extrusion plate 21. A mounting hole 23 is provided on the rib plate 22. The mounting hole 23 cooperates with the pin 24 provided at the bending point on the support rod 20.

[0052] The middle positions of the two connecting rods 2 are bent toward the middle positions of the two adjacent arc-shaped plates 1, and an extrusion plate 21 is also provided between the bending points of the two connecting rods 2;

[0053] Considering that the diameters of the heating pipes 5 vary, when the fixed-size curved plate 1 wraps and clamps some heating pipes 5 with smaller diameters, even if the two locking portions 3 are attached together, the inner ring of the curved plate 1 cannot effectively clamp the heating pipes 5. Therefore, the fixing device fails to play a practical role. To address this problem, in this embodiment, an extrusion plate 21 is provided on the inner side of the curved plate 1. The extrusion plate 21 cooperates with the curved plate 1 to effectively clamp some heating pipes 5 with smaller diameters. The specific operation is as follows:

[0054] A rib plate 22 is welded and fixed to the back of each extrusion plate 21, and the rib plate 22 is rotatably connected to the support rod 20 in a hinged manner, and its hinge point is connected by a pin 24. The extrusion plate 21 connected to the connecting rod 2 is connected in accordance with the pin 24, and the pin 24 passes through the mounting hole 23 on the rib plate 22 and the bending point of the support rod 20, so that the extrusion plate 21 can be disassembled and replaced, so that the extrusion plates 21 of different thicknesses can be replaced, so that heating pipes 5 of different sizes can be clamped, and the scope of application is wider.

[0055] Reference Figure 1 - Figure 12 , the inner surfaces of the extrusion plates 21 connected between the adjacent support rods 20 are provided with card grooves 25 on both sides, and an arc-shaped extension plate 26 is provided in the card groove 25. A card strip 27 adapted to the card groove 25 is provided on one side of the extension plate 26. The card strip 27 slides into the upper notch of the card groove 25, and the extension plate 26 cooperates with the extrusion plate 21 to be squeezed on the heating pipe 5;

[0056] When the curved plate 1 presses the extrusion plate 21 against the outer surface of the heating pipe 5, the surface of the heating pipe 5 is locally squeezed by the extrusion plate 21, which may cause the extrusion deformation of the outer protective layer of the heating pipe 5. This problem is caused by the small force-bearing area on the surface of the heating pipe 5 and the excessive local pressure. For this reason, an extension plate 26 is provided on the extrusion plate 21. The extension plate 26 can effectively increase the extrusion force-bearing area of the extrusion plate 21 on the heating pipe 5, reduce the local pressure, and reduce the damage to the outer protective layer of the heating pipe 5; by sliding the lower end of the clamping strip 27 along the upper notch of the clamping groove 25, the clamping strip 27 slides into the clamping groove 25, so that the extrusion plate 21 and the extension plate 26 are jointly squeezed on the outer surface of the heating pipe 5.

[0057] Reference Figure 1 - Figure 12 , a positioning rod 28 is provided at the tip of each rib plate 22, and the positioning rod 28 is inserted into the inner circle of the spring 29 provided at the middle position of the inner side wall of the arc-shaped plate 1;

[0058] After the rib plate 22 is installed, the positioning rod 28 is embedded in the inner circle of the spring 29. The elastic force of the spring 29 stabilizes the positioning rod 28, thereby stabilizing the extrusion plate 21, so that the extrusion plate 21 cannot deflect by itself in the absence of external extrusion force, thereby pre-limiting the freedom of the extrusion plate 21. If the extrusion plate 21 can deflect around the pin 24 at will, the end of the extrusion plate 21 will tilt and extend toward the middle position of the two curved plates 1. When the fixing device is pre-mounted on the heating pipe 5, the extrusion plate 21 will collide with the end of the heating pipe 5, and the extrusion plate 21 will hinder the installation of the curved plate 1 along the end of the heating pipe 5. The spring 29 and the positioning rod 28 are provided to stabilize the extrusion plate 21, ensuring that there is enough area between the two curved plates 1 for the heating pipe 5 to enter.

[0059] Reference Figure 1 - Figure 9 , a notch 30 is formed on the two locking parts 3, a swivel 31 is rotatably connected in the notch 30, the rotating shafts at both ends of the swivel 31 pass through the outside of the locking part 3, a through hole 32 is formed in the middle position of the swivel 31, and the bolt 4 passes through the through hole 32;

[0060] A socket 33 is radially formed on the rotating shaft at one end of each rotating body 31, and a ratchet 34 is fixedly connected to the outer ring of the rotating shaft at the other end of each rotating body 31. The ratchet 34 is engaged with a pawl 35, and the pawl 35 is rotatably connected to the outer wall of the locking part 3 through a torsion spring.

[0061] If the bolt 4 passes directly through the locking portion 3 and then the nut is tightened, the locking portion 3 will squeeze the threads on the bolt 4, thereby destroying the threads of the bolt 4. The two ends of the swivel 31 are rotatably connected in the notch 30 via the rotating shaft. When the bolt 4 and the nut are tightened, the concentrated force points of the swivel 31 and the bolt 4 will act on the axis of the bolt 4, that is, the pulling force between the two locking portions 3 is in the same line with the axis of the bolt 4.

[0062] At the same time, considering the fixing method between the locking parts 3, in the case that the bolt 4 and the nut are lost or temporarily cannot be found, they can be fixed in another way. A rope is used to pass through and tie it in the through hole 32, and then a rod-shaped tool is inserted into the socket 33, and the swivel 31 is rotated. The swivel 31 reels the rope and tightens the two locking parts 3. After tightening, the ratchet 34 constrains the swivel 31 under the restriction of the pawl 35, thereby stabilizing the two locking parts 3, and then stably clamping the arc plate 1 on the heating pipe 5.

[0063] Reference Figure 1 - Figure 15 , a plurality of C-shaped supporting plates 36 are symmetrically fixed on the outer wall of each arc-shaped plate 1. A locking assembly is provided between two opposing supporting plates 36 on the two arc-shaped plates 1. Each locking assembly includes two pull rods 37. One end of one of the pull rods 37 is rotatably connected to a threaded cylinder 38. The other end of one of the pull rods 37 is embedded in the supporting plate 36, and the other end surface of one of the pull rods 37 is fixed to a rotating plate 39.

[0064] One end of the other tie rod 37 is rotatably connected to a screw rod 40 connected to a mating threaded barrel 38 , the other end of the other tie rod 37 is embedded in the support plate 36 , and the other end surface of the other tie rod 37 is fixedly connected to a rotating plate 39 ;

[0065] After the welding ends of the two heating pipes 5 are straightened by the extrusion assembly and the curved plate 1, the locking assembly is installed on the curved plate 1. The specific operation is as follows: first connect the two adjacent tie rods 37 together, that is, the screw 40 is connected to the threaded barrel 38, and then the other ends of the two tie rods 37 are respectively embedded in the supporting plate 36, with the rotating plate 39 facing downward, and then the threaded barrel 38 and the screw 40 are rotated in opposite directions, so that the rotating plate 39 squeezes the supporting plate 36, connecting the curved plates 1 of the two heating pipes 5 together, so that the two heating pipes 5 are pre-connected together, improving the integrity and stability, and further ensuring the smooth progress of spot welding;

[0066] Regarding the corrective welding of the heating pipe 5, once the spot welding of the heating pipe 5 is misaligned, it will be more troublesome to correct it again. The spot welding needs to be disconnected, which will cause damage to the welding port of the heating pipe 5. After the damage, some repairs and other operations are required, which will waste more manpower and financial resources. Therefore, it is necessary to set up multiple layers of protection during the first spot welding in the early stage.

[0067] Reference Figure 1 - Figure 15 , the end surfaces opposite to the two support plates 36 are provided with inclined surfaces 41;

[0068] An inclined surface 41 is provided on the supporting plate 36. The inclined surface 41 cooperates with the rotating plate 39. When the rotating plate 39 is rotated, the rotating plate 39 slides along the inclined surface 41. The inclined surface 41 squeezes the rotating plate 39 and pulls the two sets of arc-shaped plates 1, thereby tightening the two heating pipes 5 together. This allows for fine-tuning of the welding gap between the two heating pipes 5, which helps to improve the subsequent welding sealing of the two heating pipes 5.

[0069] The extrusion plate 21 cooperates with the extension plate 26 to be squeezed onto the heating pipe 5, which can also improve the stability between the arc plate 1 and the heating pipe 5 and provide a stable basis for pulling the two heating pipes 5 close together.

[0070] Reference Figure 1 - Figure 15 , a plurality of fixing grooves 42 are evenly formed on each inclined surface 41; a protrusion 43 adapted to the fixing groove 42 is provided on the surface of each rotating plate 39;

[0071] The rotating plate 39 slides along the inclined surface 41 , and the protrusion 43 is embedded in the fixing groove 42 , which can lock the rotating plate 39 to prevent the rotating plate 39 from sliding along the inclined surface 41 and losing the tensioning effect on the heating pipe 5 .

[0072] Reference Figure 1 - Figure 11 , each extension plate 26 is provided with a handle 44 ; a handle 44 is provided on the extension plate 26 , and grasping the handle 44 facilitates control of the extension plate 26 so as to facilitate installation of the extension plate 26 in the slot 25 .

[0073] The working principle of the fixing device for heating pipe construction is as follows: first, wrap the two curved plates 1 around the ends of the heating pipe 5, close to the welded ends thereof, and adjust the positions of the two curved plates 1 so that the connecting rod 2 is placed below the heating pipe 5 and the locking portion 3 is placed above the heating pipe 5. Then, the two adjacent locking portions 3 are fastened together by means of bolts 4 in conjunction with nuts. At the same time, the two curved plates 1 are fastened to the heating pipe 5. Then, the extrusion assembly is installed, and the end of the ejector pin 11 is inserted into the fixing hole 12. The fixing hole 12 is provided in the lower half of the curved plate 1. The fixing hole 12 at this position cooperates with the extrusion assembly to effectively achieve horizontal correction of the heating pipe 5.

[0074] The ejector pin 11 is pushed into the fixing hole 12 near the bottom, which can not only realize the horizontal correction of the heating pipe 5, but also correct its vertical misalignment; the fixing plate 6 can be stepped on and stabilized in the groove, and then the screw rod 8 is rotated. In this embodiment, one end of the screw rod 8 is fixed with a driven tooth 13, and the driven tooth 13 is engaged with the driving tooth 14. The driving tooth 14 is provided with a handle 15. The handle 15 can rotate the driving tooth 14, and the driving tooth 14 will drive the screw rod 8 to rotate forward and reverse through the driven tooth 13. When the screw rod 8 rotates forward, the screw rod 8 pushes the slider to move toward the heating pipe 5, and the slider pushes the ejector pin 10. The ejector pin 10 squeezes the heating pipe 5, causing the end of the heating pipe 5 to be displaced. The other heating pipe 5 is also operated according to the above process.

[0075] There are generally three situations in which the heating pipe 5 is misaligned. As for how to arrange the extrusion components, it needs to be determined according to the actual situation, such as Figure 7 -a shows that the two heating pipes 5 are inclined to the same side, and the extrusion components can be arranged on the same side of the two heating pipes 5; Figure 7 -b shows two heating pipes 5, one of which is in a relatively regular state, while the other is in a state of obvious inclination. An extrusion component can be arranged on the inclined side. Figure 7 -c shows two heating pipes 5 each tilted in different directions, and an extrusion assembly can be arranged on the tilted side;

[0076] Slowly turn the handle 15 to drive the push rod 10 to slowly squeeze the heating pipe 5, and always check the correction range of the welding port of the heating pipe 5 so that the welding ends of the heating pipe 5 can be accurately and neatly relative to each other. After the correction reaches the expected state, fix the two heating pipes 5 together in advance by spot welding, then remove the fixing device, and finally perform full welding.

[0077] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for heating pipeline construction, characterized in that: It comprises two symmetrically arranged arc-shaped plates, one end of the two arc-shaped plates is rotatably connected by two symmetrically arranged connecting rods, and the other end of the two arc-shaped plates has a locking portion extending vertically upward, and the two locking portions are connected by bolts and nuts, and the two arc-shaped plates are locked on the heating pipe; An extrusion assembly is provided on one side of the curved plate, and the extrusion assembly includes a fixed plate, a slide groove is provided in the middle of the fixed plate, the slide groove is provided along the length direction of the fixed plate, a screw rod is rotatably connected in the slide groove, a push block is threadedly connected to the screw rod, the push block slides along the upper surface of the fixed plate, a push rod is rotatably connected to the push block, and the end of the push rod is rotatably connected to a push pin, and the end of the push pin is embedded in a fixing hole provided on the outer wall of the curved plate; A plurality of C-shaped support plates are symmetrically fixed on the outer side wall of each arc-shaped plate, and a locking assembly is provided between the two support plates on the two heating pipes. Each locking assembly includes two pull rods, one end of which is rotatably connected to a threaded cylinder, the other end of which is embedded in the support plate, and the other end surface of which is fixed to a rotating plate; One end of the other pull rod is rotatably connected to a screw rod that matches the threaded barrel, the other end of the other pull rod is embedded in the supporting plate, and the other end surface of the other pull rod is fixedly connected to a rotating plate; Each supporting plate is provided with an inclined surface on the end surface opposite to the rotating plate. The inclined surface cooperates with the rotating plate. When the rotating plate is rotated, the rotating plate slides along the inclined surface. The inclined surface squeezes the rotating plate and pulls the two sets of arc plates closer to each other.

2. A fixing device for heating pipeline construction according to claim 1, characterized in that: A plurality of strip holes are provided on the fixed plate, and the strip holes are arranged on both sides of the slide groove, and limiting grooves are provided on both sides of the upper edge of each strip hole; An anchor rod is arranged in each strip hole, the lower end of the anchor rod is arranged with a pointed end, and the upper end of the anchor rod is symmetrically provided with a limiting plate which can be inserted into the limiting groove.

3. A fixing device for heating pipeline construction according to claim 1, characterized in that: A support rod is symmetrically provided at the middle position of the inner side of each arc-shaped plate, and the middle position of each support rod is bent toward the middle position of the two adjacent arc-shaped plates, and an arc-shaped extrusion plate is provided at the bending point of the two adjacent support rods. A triangular rib plate is fixed to the back of the extrusion plate, and a mounting hole is provided on the rib plate. The mounting hole is matched with a latch provided at the bending point on the support rod; The middle positions of the two connecting rods are bent toward the middle positions of the two adjacent arc-shaped plates, and an extrusion plate is also provided between the bending points of the two connecting rods.

4. A fixing device for heating pipeline construction according to claim 3, characterized in that: Slots are provided on both sides of the inner surface of the extrusion plate connected between adjacent support rods, and an arc-shaped extension plate is provided in the slot. A clip strip adapted to the slot is provided on one side of the extension plate. The clip strip slides into the upper notch of the slot, and the extension plate cooperates with the extrusion plate to be squeezed onto the heating pipe.

5. A fixing device for heating pipeline construction according to claim 3, characterized in that: A positioning rod is provided at the tip of each rib plate, and the positioning rod is inserted into an inner ring of a spring provided at the middle position of the inner side wall of the arc-shaped plate.

6. A fixing device for heating pipeline construction according to claim 1, characterized in that: A notch is provided on each of the two locking parts, and a swivel is rotatably connected in the notch. The rotating shafts at both ends of the swivel pass through the outside of the locking part. A through hole is provided in the middle of the swivel, and a bolt passes through the through hole. A jack is radially provided on the rotating shaft at one end of each swivel, and a ratchet is fixedly connected to the outer ring of the rotating shaft at the other end of each swivel. The ratchet is engaged with a pawl, and the pawl is rotatably connected to the outer side wall of the locking portion through a torsion spring.

7. A fixing device for heating pipeline construction according to claim 1, characterized in that: A plurality of fixing grooves are evenly arranged on each inclined surface; and a protrusion adapted to the fixing groove is provided on the surface of each rotating plate.

8. A fixing device for heating pipeline construction according to claim 4, characterized in that: A handle is provided on each extension panel.

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