Pipeline fixing device and method for municipal heat supply engineering construction

Abstract

The invention relates to the technical field of pipeline construction, in particular to a pipeline fixing device and method for municipal heat supply engineering construction, and provides the pipeline fixing device for municipal heat supply engineering construction in order to solve the problems that a traditional pipeline fixing device and clamp structure have limitation, and the operation process is tedious, time-consuming and labor-consuming during alignment adjustment. Comprising a base, an adjusting assembly is arranged at the upper end of the base, and a supporting table capable of being overturned up and down is arranged at the upper end of a U-shaped supporting plate; when the two-way threaded rod rotates, the U-shaped clamp can move towards the inner side; a locking mechanism matched with the adjusting assembly is arranged on the inner wall of the inner rod, the locking mechanism comprises an I-shaped plate capable of moving up and down, when the I-shaped plate moves downwards, the locking mechanism is opened, and the positions of the inner rod, the U-shaped supporting plate and the supporting table can be fixed; the straight pipe and the bent pipes with different curvature specifications can be stably clamped and fixed, the pipeline alignment position can be rapidly adjusted and fixed in real time, and the operation process is remarkably simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline construction, in particular to a pipeline fixing device and method for municipal heating engineering construction. BACKGROUND

[0002] In the process of municipal heating engineering construction, the pipeline laying link needs to complete the accurate alignment of the pipeline first, and then realize the fixed connection through the welding process. This procedure directly affects the sealing and running stability of the heating system. The traditional pipeline fixing device currently used in the industry has obvious limitations in the design of the clamp structure. Most of them can only clamp and fix straight pipes and are difficult to adapt to the arc surface structure of bent pipes, resulting in unstable clamping and positioning of bent pipes during welding. Not only is displacement deviation likely to occur, but quality problems such as uneven welding gaps may also be caused. At the same time, when adjusting the alignment position of the pipeline, the traditional device usually has a complicated operation process and is time-consuming and laborious, which seriously affects the construction efficiency and makes it difficult to meet the construction needs of diversified pipeline laying in municipal heating engineering. SUMMARY

[0003] The present application provides a pipeline fixing device for municipal heating engineering construction, which can realize stable clamping and fixing of straight pipes and bent pipes of different curvature specifications, and can also realize quick adjustment and immediate fixing of the alignment position of the pipeline, significantly simplifying the operation process and effectively solving the problems mentioned in the background.

[0004] To solve the above problems, the technical solution adopted by the present application is as follows: A pipeline fixing device for municipal heating engineering construction, comprising a base, an adjustment assembly is arranged at the upper end of the base, the adjustment assembly comprises a supporting outer cylinder, an inner rod capable of moving up and down is arranged inside the supporting outer cylinder, a U-shaped supporting plate capable of rotating is arranged at the upper end of the inner rod, and a supporting table capable of turning up and down is arranged at the upper end of the U-shaped supporting plate; a clamping assembly is arranged at the upper end of the supporting table, the clamping assembly comprises a bidirectional threaded rod capable of rotating, U-shaped clamps are mounted on the outer surface of the bidirectional threaded rod on both sides, and the U-shaped clamps can move inward when the bidirectional threaded rod rotates; a locking mechanism matched with the adjustment assembly is arranged on the inner wall of the inner rod, the locking mechanism comprises a I-shaped plate capable of moving up and down, the locking mechanism is opened when the I-shaped plate moves downward, and the position of the inner rod, the U-shaped supporting plate and the supporting table can be fixed.

[0005] A driving motor is arranged on the inner wall of the supporting table, the bidirectional threaded rod is fixedly connected to the output end of the driving motor, threaded sliders are threadedly connected to the left and right ends of the outer surface of the bidirectional threaded rod, the threaded sliders are slidingly connected to the inner walls of the left and right ends of the supporting table, and the U-shaped clamps are mounted on the corresponding threaded sliders.

[0006] The lower end of the support table is provided with a transverse support plate capable of moving up and down, the inner wall of the threaded sliding block is slidably connected with a rectangular frame, the lower end of the rectangular frame is slidably connected with the left and right sides of the lower end surface of the transverse support plate, the U-shaped clamps are rotatably connected with the upper end of the rectangular frame, and the inner side of the U-shaped clamps is provided with a rubber chuck.

[0007] The lower end surface of the support table is fixedly connected with a plurality of short guide rods, the left and right sides of the front and rear surfaces of the transverse support plate are provided with ear plates, the ear plates are sleeved on the outer surfaces of the short guide rods, and the lower end of the support table is also provided with a rotatable adjusting screw rod.

[0008] The inner wall of the supporting outer cylinder is slidably connected with a support seat, the inner rod comprises a first inner rod and a second inner rod, the second inner rod is fixedly connected with the upper end surface of the support seat, and the first inner rod is rotatably connected with the upper end of the second inner rod.

[0009] The inner wall of the second inner rod is provided with a U-shaped guide plate capable of moving up and down, the inner side surface of the two clamps is fixedly connected with an extension seat, the inner wall of the extension seat is fixedly connected with a first sliding pin, and the two sides of the U-shaped guide plate are provided with inclined grooves matched with the first sliding pins.

[0010] The inner wall of the second inner rod is provided with a driving rod capable of moving up and down, the lower end of the driving rod is rotatably connected with the inner wall of the upper end of the U-shaped guide plate, and the lower end of the outer surface of the driving rod is sleeved with a spring matched with the U-shaped guide plate.

[0011] The I-shaped plate is slidably connected with the inner wall of the first inner rod, the lower end surface of the I-shaped plate is fixedly connected with a lock tooth, the driving rod is fixedly connected with the lower end surface of the lock tooth, the upper end surface of the support seat is fixedly connected with connecting rods on the left and right sides, the upper end of the two connecting rods is fixedly connected with a connecting ring, the connecting ring is rotatably connected with the outer surface of the first inner rod, and the upper end of the connecting ring is fixedly connected with an inner gear ring matched with the lock tooth.

[0012] The support table is rotatably connected with the inner wall of the U-shaped support plate, the left and right ends of the support table are coaxially fixedly connected with spur gears, the upper end surface of the I-shaped plate is fixedly connected with two long guide rods on the left and right sides, and the upper ends of the two long guide rods are fixedly connected with a spur rack matched with the spur gears.

[0013] A method for using a pipeline fixing device for municipal heating engineering construction, comprising the following steps: S1, preparation stage: place the pipeline fixing device at the designated position of the construction, and ensure that the base stably supports the entire device; S2, pipeline placement: place the pipeline to be welded at the preset position on the upper end of the support table; S3, pipeline clamping: when the bidirectional threaded rod, drive the two U-shaped clamps to move inward, the U-shaped clamps adaptively adjust the deflection angle to fit the surface of the pipeline, and finally clamp and fix the pipeline to maintain a stable clamping state; S4, position unlocking: by pushing the I-beam upwards to close the locking mechanism, the height of the pipeline, the left and right deflection angle and the up and down deflection angle are adjusted; S5, position locking: loosen the I-beam to open the locking mechanism, which can limit and fix the height of the pipeline, the left and right deflection angle, the up and down deflection angle, and complete the precise locking of the pipeline position.

[0014] Compared with the prior art, the present application has the following advantages: In use, by placing the pipeline to be welded on the support, when the bidirectional threaded rod is rotated, the U-shaped clamp can be driven to move inward to clamp and fix the pipeline; the U-shaped clamp can be used to clamp and fix straight pipes and bent pipes of different curvature specifications, and when clamping and fixing the bent pipe, the U-shaped clamp can be deflected to automatically adapt to the curvature of the bent pipe; the adjustment assembly can be used to adjust the position of the support and the pipeline in multiple directions, that is, when the inner rod moves up and down, the height of the pipeline can be adjusted, when the U-shaped support plate rotates, the left and right deflection angle of the pipeline can be adjusted, and when the support turns up and down, the up and down deflection angle of the pipeline can be adjusted; the locking device cooperates with the adjustment assembly, when the I-beam moves downward to open the locking mechanism, the position of the inner rod, the U-shaped support plate and the support can be fixed, thereby fixing the position of the adjusted pipeline, and when the I-beam moves upward to close the locking mechanism, the support and the pipeline can move up and down, deflect left and right, and deflect up and down, that is, the position of the pipeline can be quickly adjusted; the device breaks through the limitation of traditional fixing devices that can only clamp straight pipes, and through the optimization of the clamping structure design, it can realize stable clamping and fixing of straight pipes and bent pipes of different curvature specifications, greatly expanding the application range of the device, and fully adapting to the diversified pipeline laying scenes in municipal heating engineering; compared with the traditional device, the device can quickly adjust and fix the alignment position of the pipeline, significantly simplifying the operation process, effectively shortening the construction preparation time, and greatly improving the overall efficiency of pipeline welding construction; the stable clamping performance can avoid displacement deviation during pipeline welding, the precise position fixing capability can help to ensure the uniformity of the welding gap and reduce the welding quality problems caused by inaccurate positioning, thereby providing a strong guarantee for the pipeline connection reliability of municipal heating engineering; the multifunctional design and convenient operation characteristics of the device reduce the operation difficulty requirement of the construction personnel, and adapt to the use requirements of different scenes, further improving the flexibility and convenience in the construction process, and helping to smoothly promote the engineering progress. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a first axonometric view of a pipeline fixing device for municipal heating engineering construction.

[0016] Figure 2It is a second axonometric view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0017] Figure 3 It is a U-shaped clamp installation schematic view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0018] Figure 4 It is a support table sectional view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0019] Figure 5 It is a cross support plate installation schematic view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0020] Figure 6 It is a straight rack installation schematic view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0021] Figure 7 It is a I-beam plate installation schematic view of the pipeline fixing device for municipal heating engineering construction of the present application Figure 8 It is a first inner rod sectional view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0022] Figure 9 It is a support outer cylinder sectional view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0023] Figure 10 It is a U-shaped guide plate sectional view of the pipeline fixing device for municipal heating engineering construction of the present application.

[0024] Marked in the figure: 1 - base, 2 - support outer cylinder, 3 - support table, 4 - driving motor, 5 - two-way threaded rod, 6 - threaded sliding block, 7 - rectangular frame, 8 - U-shaped clamp, 9 - cross support plate, 10 - adjusting handle, 11 - adjusting screw rod, 12 - screw rod support plate, 13 - short guide rod, 14 - ear plate, 15 - straight gear, 16 - straight rack, 17 - long guide rod, 18 - I-beam plate, 19 - first inner rod, 20 - second inner rod, 21 - locking tooth, 22 - inner tooth ring, 23 - connecting ring, 24 - connecting rod, 25 - support seat, 26 - T-shaped groove, 27 - driving rod, 28 - U-shaped guide plate, 29 - spring, 30 - pin, 31 - extension seat, 32 - first sliding pin, 33 - inclined groove, 34 - clamping groove, 35 - U-shaped support plate, 36 - rubber chuck. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present application, and the technical solutions of the present application are further described in conjunction with the drawings, but the present application is not limited to these embodiments.

[0026] As Figures 1-10The utility model provides a pipeline fixing device for municipal heating engineering construction, including base 1, the upper end of base 1 is equipped with adjusting assembly, adjusting assembly includes support outer tube 2, the inside of support outer tube 2 is equipped with the inner rod of up and down movement, the upper end of inner rod is equipped with the rotatable U-shaped supporting plate 35, the upper end of U-shaped supporting plate 35 is equipped with the support platform 3 of up and down overturning, the upper end of support platform 3 is equipped with clamping assembly, clamping assembly includes the rotatable bidirectional screw rod 5, both sides of bidirectional screw rod 5 outer surface are all installed U-shaped clamp 8, when bidirectional screw rod 5 rotates, can make U-shaped clamp 8 move to the inside, the inner wall of inner rod is equipped with the locking mechanism of cooperation with adjusting assembly, locking mechanism includes the I-beam 18 of up and down movement, when I-beam 18 moves down, locking mechanism opens, can fix the position of inner rod, U-shaped supporting plate 35, support platform 3.

[0027] As Figures 1-8As shown, the base 1 is used to support the entire device; by placing the pipe to be welded on the support table 3, when the bidirectional threaded rod 5 is rotated, it can drive the U-shaped clamp 8 to move inward, thereby clamping and fixing the pipe; by setting the U-shaped clamp 8, it can clamp and fix straight pipes and bent pipes of different curvature specifications; when clamping and fixing the bent pipe, the U-shaped clamp 8 can be deflected and automatically adjusted according to the curvature of the bent pipe; by setting the adjusting assembly, the position of the support table 3 and the pipe can be adjusted in multiple directions, that is, when the inner rod moves up and down, the height of the pipe can be adjusted, when the U-shaped support plate 35 rotates, the left and right deflection angles of the pipe can be adjusted, and when the support table 3 flips up and down, the up and down deflection angles of the pipe can be adjusted; by cooperating with the adjusting assembly, when the I-beam 18 moves downward to open the locking mechanism, the positions of the inner rod, the U-shaped support plate 35 and the support table 3 can be fixed, thereby fixing the position of the adjusted pipe; when the I-beam 18 moves upward to close the locking mechanism, the support table 3 and the pipe can move up and down, deflect left and right, and deflect up and down, that is, the position of the pipe can be quickly adjusted; the device breaks through the limitation of traditional fixed devices that can only clamp straight pipes, and by optimizing the clamping structure design, it can realize stable clamping and fixing of straight pipes and bent pipes of different curvature specifications, greatly expanding the application range of the device and fully adapting to the diversified pipe laying scenes in municipal heating engineering; compared with the traditional device, the device can realize quick adjustment and immediate fixing of the aligned position of the pipe, significantly simplifying the operation process, effectively shortening the construction preparation time, and greatly improving the overall efficiency of pipe welding construction; the stable clamping performance can avoid displacement deviation during pipe welding, and the precise position fixing capability can help ensure the uniformity of the welding gap and reduce welding quality problems caused by inaccurate positioning, thereby providing a strong guarantee for the pipe connection reliability of municipal heating engineering; the multifunctional design and convenient operation characteristics of the device reduce the operation difficulty requirement of construction personnel, adapt to the use requirements of different scenes, further improve the flexibility and convenience in the construction process, and help the smooth progress of the project.

[0028] The inner wall of the support table 3 is provided with a driving motor 4, the bidirectional threaded rod 5 is fixedly connected to the output end of the driving motor 4, and the outer surface of the bidirectional threaded rod 5 is threadedly connected with threaded blocks 6 at the left and right ends.

[0029] As shown in Figures 3-4As shown, the driving motor 4 is fixed on the inner wall of the support table 3, and the driving motor 4 is used to provide rotating force for the bidirectional threaded rod 5, the bidirectional threaded rod 5 is rotatably connected to the inner wall of the support table 3, and the threaded sliding block 6 is slidably connected to the inner wall of the support table 3; the outer surface of the bidirectional threaded rod 5 is provided with two sections of threads with same pitch and different rotation directions at left and right ends, when the bidirectional threaded rod 5 rotates, the threaded sliding block 6 and the U-shaped clamp 8 can be driven to move inward or outward, so that the pipe is clamped and fixed or loosened, and the threaded connection between the bidirectional threaded rod 5 and the threaded sliding block 6 has self-locking function, that is, when the bidirectional threaded rod 5 does not rotate, the threaded sliding block 6 and the U-shaped clamp 8 will not move left and right, so that stable clamping and fixing are realized.

[0030] As shown, the lower end of the support table 3 is provided with a horizontal support plate 9 which can move up and down, the inner wall of the threaded sliding block 6 is slidably connected with a rectangular frame 7, the lower end of the rectangular frame 7 is slidably connected to the left and right sides of the lower end surface of the horizontal support plate 9, and the upper end of the U-shaped clamp 8 is rotatably connected to the rectangular frame 7, and the inner side of the U-shaped clamp 8 is provided with a rubber chuck 36.

[0031] As shown, Figure 4 the rectangular frame 7 is slidably connected to the inner wall of the threaded sliding block 6, and the rectangular frame 7 is slidably connected to the upper end surface of the horizontal support plate 9, when the horizontal support plate 9 moves up and down, the rectangular frame 7 and the U-shaped clamp 8 can be driven to move up and down, and the height of the U-shaped clamp 8 can be adjusted according to the radius of the pipe, that is, it can adapt to clamping pipes with different radii, when the threaded sliding block 6, the rectangular frame 7 and the U-shaped clamp 8 move inward or outward, the rectangular frame 7 can slide left and right on the upper end surface of the horizontal support plate 9, that is, when the rectangular frame 7 moves up and down or left and right, it can always be connected with the threaded sliding block 6 and the horizontal support plate 9, and the movements of the two do not interfere with each other; the U-shaped clamp 8 is rotatably connected to the upper end of the rectangular frame 7 through a hinge shaft, so that the U-shaped clamp 8 can swing left and right, and when clamping, it can be automatically adjusted according to the curvature of the pipe, after the two U-shaped clamps 8 simultaneously contact and clamp the pipe, the pipe is clamped and fixed, that is, it no longer swings left and right; the rubber chuck 36 is provided, which can increase the friction when contacting and clamping the pipe, and can also prevent excessive clamping from damaging the outer surface of the pipe.

[0032] A plurality of short guide rods 13 are fixed to the lower end surface of the support table 3, the left and right sides of the front and rear surfaces of the horizontal support plate 9 are provided with ear plates 14, the ear plates 14 are sleeved on the outer surfaces of the short guide rods 13, and the lower end of the support table 3 is also provided with a rotating adjusting screw rod 11, and the horizontal support plate 9 is threadedly connected to the outer surface of the adjusting screw rod.

[0033] As shown, Figures 4-5As shown, the ear plate 14 can slide up and down on the outer surface of the short guide rod 13, and the short guide rod 13 can limit the position of the ear plate 14 and the horizontal support plate 9 to move only up and down. The lower end surface of the support table 3 is fixedly connected with the screw rod support plate 12, the adjusting screw rod 11 is rotatably connected with the inner wall of the screw rod support plate 12, and the screw rod support plate 12 limits the rotation of the adjusting screw rod 11. The lower end of the outer surface of the adjusting screw rod 11 is fixedly connected with the adjusting handle 10, and when the adjusting handle 10 rotates, it can drive the adjusting screw rod 11 to rotate. When the adjusting screw rod 11 rotates, it can drive the horizontal support plate 9 to move upward or downward through the threaded connection with the horizontal support plate 9, so as to adjust the position of the horizontal support plate 9 and the U-shaped clamp 8, and has a self-locking function under the threaded connection, that is, when the adjusting screw rod 11 does not rotate, the height of the corresponding horizontal support plate 9 and U-shaped clamp 8 is in a fixed state.

[0034] The support outer cylinder 2 is slidably connected with a support seat 25 on the inner wall, the inner rod includes a first inner rod 19 and a second inner rod 20, the second inner rod 20 is fixedly connected on the upper end surface of the support seat 25, and the first inner rod 19 is rotatably connected on the upper end of the second inner rod 20. The inner wall of the left and right two ends of the second inner rod 20 is provided with a movable pin 30, and the inner wall of the left and right two ends of the support outer cylinder 2 is provided with a clamping groove 34 matched with the pin 30.

[0035] As shown in Figures 6-9 The support seat 25 is slidably connected on the inner wall of the support outer cylinder 2, the upper end of the second inner rod 20 is provided with a T-shaped groove 26, the lower end of the first inner rod 19 is provided with a T-shaped ring, and the T-shaped ring is rotatably connected on the inner wall of the T-shaped groove 26. It is equivalent to that the first inner rod 19 is rotatably connected on the upper end of the second inner rod 20, that is, when the first inner rod 19 moves up and down, it can drive the second inner rod 20 to move up and down, and the first inner rod 19 can also rotate on the upper end of the second inner rod 20. The second inner rod 20 is fixedly connected on the upper end surface of the support seat 25, and the second inner rod 20 can only move up and down on the inner wall of the support outer cylinder 2. When the two pins 30 are at the outermost end, they can be engaged with the clamping groove 34, which can limit the up and down movement of the support seat 25, the first inner rod 19 and the second inner rod 20. When the two pins 30 move inward to disengage from the clamping groove 34, the second inner rod 20, the support seat 25 and the first inner rod 19 can slide up and down.

[0036] The inner wall of the second inner rod 20 is provided with a U-shaped guide plate 28 which can move up and down, the inner side surface of the two pins 30 is fixedly connected with an extension seat 31, the inner wall of the extension seat 31 is fixedly connected with a first sliding pin 32, and the two sides of the U-shaped guide plate 28 are provided with a inclined groove 33 matched with the first sliding pin 32.

[0037] As shown in Figures 9-10 The pin 30 can be slidably connected on the inner wall of the second inner rod 20, and the U-shaped guide plate 28 can be slidably connected on the inner wall of the second inner rod 20. The installation and shape of the pin 30, the extension seat 31 and the first sliding pin 32 are as shown in Figure 10As shown, when the U-shaped guide plate 28 moves downward, the first sliding pin 32, the extension seat 31, the locking pin 30, etc. can be moved inwards or outwards by the engagement of the first sliding pin 32 and the inclined groove 33, so as to control the engagement or disengagement of the locking pin 30 and the clamping groove 34.

[0038] The inner wall of the second inner rod 20 is provided with a driving rod 27 capable of moving up and down, the lower end of the driving rod 27 is rotationally connected to the inner wall of the upper end of the U-shaped guide plate 28, and the outer surface of the lower end of the driving rod 27 is sleeved with a spring 29 matched with the U-shaped guide plate 28.

[0039] As shown, Figures 9-10 The driving rod 27 penetrates through the inner wall of the upper end of the second inner rod 20 and can slide up and down on the inner wall of the second inner rod 20; when the driving rod 27 moves up and down, the U-shaped guide plate 28 can be driven to move up and down, and when the driving rod 27 rotates, the U-shaped guide plate 28 and the inner wall of the second inner rod 20 can also rotate. One end of the spring 29 is fixed to the inner wall of the upper end of the second inner rod 20, and the other end of the spring 29 is fixed to the upper end surface of the U-shaped guide plate 28. The spring 29 always has a downward driving force on the U-shaped guide plate 28. The U-shaped guide plate 28 can be in the bottommost position in the normal state, that is, the corresponding locking pin 30 can be in the outermost position in the normal state, and stably engaged with the clamping groove 34.

[0040] The I-shaped plate 18 is slidably connected to the inner wall of the first inner rod 19, the lower end surface of the I-shaped plate 18 is fixedly connected with a lock tooth 21, the driving rod 27 is fixedly connected to the lower end surface of the lock tooth 21, the upper end surfaces of both sides of the bracket 25 are fixedly connected with a connecting rod 24, the upper end of the two connecting rods 24 is fixedly connected with a connecting ring 23, the connecting ring 23 is rotationally connected to the outer surface of the first inner rod 19, and the upper end of the connecting ring 23 is fixedly connected with an inner gear ring 22 matched with the lock tooth 21.

[0041] As shown, Figures 7-9 The I-shaped plate 18, the driving rod 27 and the lock tooth 21 can be slidably connected to the inner wall of the first inner rod 19 up and down, and when the I-shaped plate 18 moves up and down, the lock tooth 21 and the driving rod 27 can be driven to move up and down; the bracket 25, the connecting rod 24, the connecting ring 23 and the inner gear ring 22 are installed and shaped as Figure 8As shown, under the limit of the connecting rod 24, the connecting ring 23 and the inner gear ring 22 cannot rotate and can only move up and down with the first inner rod 19, i.e. when the first inner rod 19 moves up and down, the second inner rod 20, the bracket 25, the connecting ring 23, the inner gear ring 22 and the like can be driven to move up and down synchronously, and when the first inner rod 19 and the lock gear 21 rotate, the connecting ring 23 and the inner gear ring 22 will not be driven to rotate; when the I-beam 18 is at the lowermost position, the lock gear 21 can be engaged with the inner gear ring 22, at this time the rotation of the first inner rod 19 can be limited, when the I-beam 18 moves upward, the lock gear 21 and the driving rod 27 can be driven to move upward, when the lock gear 21 moves upward to disengage from the inner gear ring 22, at this time the first inner rod 19, the lock gear 21, the I-beam 18 and the bracket 3 can rotate and move, so as to adjust the bracket 3 to deflect left and right, when the driving rod 27 moves upward, the two catches 30 can disengage from the clamping grooves 34, at this time the height of the bracket 3 can be adjusted, when the I-beam 18 is loosened, the driving rod 27 will move downward under the elastic force of the spring 29, i.e. the corresponding lock gear 21 and I-beam 18 are reset downward, when the driving rod 27 moves downward, the catch 30 can be moved outward again to engage with the clamping groove 34, at this time the height of the first inner rod 19 and the bracket 3 can be fixed, when the lock gear 21 moves downward, it can engage with the inner gear ring 22 again, at this time the left and right deflection angles of the bracket 3 can be fixed.

[0042] The bracket 3 is rotationally connected to the inner wall of the U-shaped supporting plate 35, the straight gear 15 is coaxially fixed to the left and right ends of the bracket 3, the two long guide rods 17 are fixed to the left and right sides of the upper end surface of the I-beam 18, and the straight rack 16 matched with the straight gear 15 is fixed to the upper ends of the two long guide rods 17.

[0043] As Figure 6As shown, the straight gear 15 and the inner wall of the center of the table 3 are fixed with the rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the U-shaped supporting plate 35. The table 3 is rotatably connected to the inner wall of the U-shaped supporting plate 35, that is, the table 3 can be deflected up and down. The long guide rod 17 supports and limits the straight rack 16. When the straight rack 16 is engaged with the straight gear 15, the rotation of the straight gear 15 can be limited, that is, the up and down deflection of the table 3 can be limited. When the I-beam 18 moves upward, the long guide rod 17 and the straight rack 16 can move upward. When the straight rack 16 moves upward, it can be disengaged from the straight gear 15. At this time, the straight gear 15 and the table 3 can rotate, that is, the up and down deflection is adjusted to a specified angle. In use, the pipeline is placed on the table 3, the driving motor 4 is operated, the two U-shaped clamps 8 move inward to clamp and fix the pipeline, and then the I-beam 18 is driven upward to move the locking pin 30 inward to disengage from the locking groove 34, move the locking tooth 21 upward to disengage from the inner ring gear 22, and move the straight rack 16 upward to disengage from the straight gear 15. At this time, the locking mechanism is closed, and the position of the table 3 and the pipeline can be quickly adjusted according to the requirements, that is, the pipeline can be moved up and down, deflected left and right, and deflected up and down in multiple directions. After adjusting to the appropriate position, the I-beam 18 is loosened and can be reset downward under the elastic force of the spring 29, that is, the corresponding locking pin 30 moves outward to engage with the locking groove 34 again. At this time, the height of the table 3 and the pipeline is fixed, the locking tooth 21 moves downward to engage with the inner ring gear 22 again, the first inner rod 19, the table 3 and the pipeline are limited to deflect left and right, and the straight rack 16 moves downward to engage with the straight gear 15 again, thereby limiting the table 3 and the pipeline to deflect up and down, so as to quickly adjust and fix.

[0044] A method for using a pipeline fixing device for municipal heating engineering construction, comprising the following steps: S1, preparation stage: place the pipeline fixing device at the designated construction position to ensure that the base 1 stably supports the entire device; S2, pipeline placement: place the pipeline to be welded on the preset position at the upper end of the table 3; S3, pipeline clamping: when the two-way threaded rod 5 is driven, the two U-shaped clamps 8 move inward, and the U-shaped clamps 8 adaptively adjust the deflection angle to fit the surface of the pipeline, finally clamping and fixing the pipeline to maintain a stable clamping state; S4, position unlocking: push the I-beam 18 upward to close the locking mechanism to adjust the height, left and right deflection angle and up and down deflection angle of the pipeline; S5, position locking: loosen the I-beam 18 to open the locking mechanism, which can limit and fix the height, left and right deflection angle and up and down deflection angle of the pipeline, and complete the precise locking of the pipeline position.

[0045] The application is used, by placing the pipeline to be welded on the support table 3, when the bidirectional threaded rod 5 rotates, the U-shaped clamp 8 can be driven to move inward to clamp and fix the pipeline; the U-shaped clamp 8 can clamp and fix straight pipes and curved pipes of different curvature specifications, and when clamping and fixing the curved pipe, the U-shaped clamp 8 can be deflected to automatically adapt to the curvature of the curved pipe; the adjusting assembly can adjust the position of the support table 3 and the pipeline in multiple directions, that is, when the inner rod moves up and down, the height of the pipeline can be adjusted, when the U-shaped support plate 35 rotates, the left and right deflection angles of the pipeline can be adjusted, and when the support table 3 flips up and down, the up and down deflection angles of the pipeline can be adjusted; when the I-beam 18 moves downward to open the locking mechanism, the position of the inner rod, the U-shaped support plate 35 and the support table 3 can be fixed to fix the adjusted position of the pipeline, and when the I-beam 18 moves upward to close the locking mechanism, the support table 3 and the pipeline can move up and down, deflect left and right, and deflect up and down, that is, the position of the pipeline can be quickly adjusted; the device breaks through the limitation of traditional fixing devices that can only clamp straight pipes, and through the optimization of the clamping structure design, it can realize stable clamping and fixing of straight pipes and curved pipes of different curvature specifications, greatly expanding the application range of the device and fully adapting to the diversified pipeline laying scenes in municipal heating engineering; compared with the traditional device, the device can realize quick adjustment and immediate fixation of the aligned position of the pipeline, significantly simplifying the operation process, effectively shortening the construction preparation time and greatly improving the overall efficiency of pipeline welding construction; the stable clamping performance can avoid displacement deviation during pipeline welding, and the precise position fixing capability can help to ensure the uniformity of the welding gap and reduce welding quality problems caused by inaccurate positioning, providing a strong guarantee for the pipeline connection reliability of municipal heating engineering; the multifunctional design and convenient operation characteristics of the device reduce the operation difficulty requirement of construction personnel, adapt to the use requirements of different scenes, further improve the flexibility and convenience in the construction process, and help to smoothly promote the progress of the project.

Claims

1. A pipe fixing device for construction of municipal heating projects, comprising a base (1), characterized in that: The base (1) is provided with an adjustment assembly at its upper end. The adjustment assembly includes a supporting outer cylinder (2). The supporting outer cylinder (2) is provided with an inner rod that can move up and down. The upper end of the inner rod is provided with a rotatable U-shaped support plate (35). The upper end of the U-shaped support plate (35) is provided with a support platform (3) that can flip up and down. The upper end of the support platform (3) is provided with a clamping assembly. The clamping assembly includes a rotatable bidirectional threaded rod (5). Both sides of the outer surface of the bidirectional threaded rod (5) are equipped with U-shaped clamps (8). When the bidirectional threaded rod (5) rotates, the U-shaped clamps (8) can move inward. The inner wall of the inner rod is provided with a locking mechanism that cooperates with the adjustment assembly. The locking mechanism includes an I-beam plate (18) that can move up and down. When the I-beam plate (18) moves downward, the locking mechanism opens and can fix the positions of the inner rod, the U-shaped support plate (35), and the support platform (3).

2. The pipe fixing device for municipal heating engineering construction as described in claim 1, characterized in that: The inner wall of the support platform (3) is provided with a drive motor (4), and a bidirectional threaded rod (5) is fixedly connected to the output end of the drive motor (4). The left and right ends of the outer surface of the bidirectional threaded rod (5) are threadedly connected to threaded sliders (6), and the threaded sliders (6) are slidably connected to the inner walls of the left and right ends of the support platform (3). The U-shaped clamp (8) is installed on the corresponding threaded sliders (6).

3. The pipe fixing device for municipal heating engineering construction as described in claim 2, characterized in that: The lower end of the support platform (3) is provided with a horizontal support plate (9) that can move up and down. The inner wall of the threaded slider (6) is slidably connected with a rectangular frame (7). The lower end of the rectangular frame (7) is slidably connected to the left and right sides of the lower surface of the horizontal support plate (9). The U-shaped clamps (8) are rotatably connected to the upper end of the rectangular frame (7). The inner end of the U-shaped clamps (8) is provided with rubber clamps (36).

4. The pipe fixing device for municipal heating engineering construction as described in claim 3, characterized in that: The lower end surface of the support platform (3) is fixed with multiple short guide rods (13). The front and rear surfaces of the horizontal support plate (9) are provided with ear plates (14) on both the left and right sides. The ear plates (14) are all sleeved on the outer surface of the short guide rods (13). The lower end of the support platform (3) is also provided with a rotatable adjusting screw (11). The horizontal support plate (9) is threadedly connected to the outer surface of the adjusting screw rod.

5. A pipe fixing device for municipal heating engineering construction as described in claim 1, characterized in that: The inner wall of the supporting outer cylinder (2) is slidably connected to a support (25). The inner rod includes a first inner rod (19) and a second inner rod (20). The second inner rod (20) is fixed to the upper surface of the support (25), and the first inner rod (19) is rotatably connected to the upper end of the second inner rod (20). The inner walls of the left and right ends of the second inner rod (20) are provided with movable locking pins (30), and the inner walls of the left and right ends of the supporting outer cylinder (2) are provided with locking grooves (34) that cooperate with the locking pins (30).

6. A pipe fixing device for municipal heating engineering construction as described in claim 5, characterized in that: The inner wall of the second inner rod (20) is provided with a U-shaped guide plate (28) that can move up and down. An extension seat (31) is fixedly connected to the inner end face of the two locking pins (30). A first sliding pin (32) is fixedly connected to the inner wall of the extension seat (31). An inclined groove (33) that cooperates with the first sliding pin (32) is opened on both sides of the U-shaped guide plate (28).

7. A pipe fixing device for municipal heating engineering construction as described in claim 6, characterized in that: The inner wall of the second inner rod (20) is provided with a drive rod (27) that can move up and down. The lower end of the drive rod (27) is rotatably connected to the upper inner wall of the U-shaped guide plate (28). The lower end of the outer surface of the drive rod (27) is fitted with a spring (29) that cooperates with the U-shaped guide plate (28).

8. A pipe fixing device for municipal heating engineering construction as described in claim 7, characterized in that: The I-beam plate (18) is slidably connected to the inner wall of the first inner rod (19). A locking tooth (21) is fixedly connected to the lower surface of the I-beam plate (18). The drive rod (27) is fixedly connected to the lower surface of the locking tooth (21). Connecting rods (24) are fixedly connected to both sides of the upper surface of the support (25). A connecting ring (23) is fixedly connected to the upper end of the two connecting rods (24). The connecting ring (23) is rotatably connected to the outer surface of the first inner rod (19). An internal gear ring (22) that cooperates with the locking tooth (21) is fixedly connected to the upper end of the connecting ring (23).

9. A pipe fixing device for municipal heating engineering construction as described in claim 1, characterized in that: The support platform (3) is rotatably connected to the inner wall of the U-shaped support plate (35). Both ends of the support platform (3) are coaxially fixed with spur gears (15). Two long guide rods (17) are fixed on both sides of the upper surface of the I-beam plate (18). The upper ends of the two long guide rods (17) are fixed with a spur rack (16) that cooperates with the spur gear (15).

10. The method of using a pipeline fixing device for municipal heating engineering construction as described in claim 1, characterized in that: Includes the following steps: S1, Preparation stage: Place the pipe fixing device at the designated construction location and ensure that the base (1) stably supports the entire device; S2, Pipe placement: Place the pipe to be welded in the preset position on the upper end of the support (3); S3, pipe clamping: When the bidirectional threaded rod (5) is in place, the U-shaped clamps (8) on both sides are driven to move inward. The U-shaped clamps (8) adaptively adjust the deflection angle to fit the pipe surface, and finally clamp and fix the pipe to maintain a stable clamping state. S4, Position Unlock: By pushing the I-plate (18) upwards, the locking mechanism is closed, and the pipe height, left and right deflection angle and up and down deflection angle are adjusted; S5, Position Locking: Loosen the I-plate (18) to open the locking mechanism, which can limit and fix the pipe height, left and right deflection angle and up and down deflection angle, and complete the precise locking of the pipe position.

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