Pipeline lifting and positioning device

By designing a pipe lifting positioning device including a mobile lifting platform, a height adjustment assembly and an installation assembly, the problem of lifting stability in the pipe tilted state cannot be met in the prior art, and the safety of stable lifting and lifting operations in the pipe tilted state is achieved.

CN119637785APending Publication Date: 2025-03-18CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202411573832.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The existing pipeline lifting device cannot meet the lifting stability requirements in the tilted state of the pipeline.

Method used

A pipe lifting positioning device is designed, including a mobile lifting platform, a height adjustment assembly and an installation assembly. The mounting assembly is provided with an opposite first support frame and a second support frame. Through the rotation and sliding adjustment of the articulation seat, the inclined state of the pipe can be adapted to the tilt state and the stability of the lifting structure can be maintained.

Benefits of technology

It realizes the maintenance of lifting stability in the tilted state of the pipe, meets the needs of tilted pipe operation, and improves the safety of lifting operations through the cooperation of the antenna sensor and the PID control module.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a pipeline lifting and positioning device which comprises a movable lifting platform, a height adjusting assembly and a mounting assembly which are sequentially connected from bottom to top. Wherein the mounting assembly comprises a guide seat, a first support frame, a second support frame and a hinge seat; the first supporting frame and the second supporting frame are both in an L shape and are oppositely arranged. The bottom of the first supporting frame and the bottom of the second supporting frame are rotationally connected with the top of the guide base through hinge bases correspondingly, and the hinge base connected with the bottom of the second supporting frame can be adjusted in a sliding mode towards the hinge base connected with the bottom of the first supporting frame. The pipeline is supported through the rotatable first supporting frame and the rotatable second supporting frame, meanwhile, the height adjusting assembly is arranged for adjusting the inclination of the pipeline, and after the pipeline is inclined, under the self-rotation effect of the first supporting frame and the second supporting frame, the attaching state of the first supporting frame and the second supporting frame is kept; in this way, the lifting stability after the pipeline is inclined is maintained, and the requirement for pipeline inclination operation can be met.
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Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a pipeline lifting and positioning device. Background Art

[0002] In large public buildings and underground space projects, various water supply and drainage, ventilation, fire protection and other pipes are mostly located in the upper space close to the bottom of the beams. The pipe lifting device is mainly used to slowly adjust the pipes into position for installation.

[0003] The existing pipeline lifting device can only be used to lift the pipeline in a balanced state. When the pipeline is tilted in any direction, the lifting contact area will be reduced, affecting the lifting stability. During the actual installation of the pipeline, there will be a situation where the pipeline needs to maintain a certain inclination after lifting. Therefore, the existing pipe lifting device cannot meet the demand for maintaining the stability of the pipeline lifting when the pipeline is tilted. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a pipeline lifting and positioning device to solve the problem that the pipeline lifting device in the prior art cannot meet the pipeline tilting operation requirements.

[0005] To achieve the above object, the present invention provides a pipeline lifting and positioning device, comprising a movable lifting platform, a height adjustment component and a mounting component connected in sequence from bottom to top;

[0006] The mounting assembly comprises a guide seat, a first support frame, a second support frame and an articulated seat;

[0007] The first support frame and the second support frame are both in an 'L' shape and are arranged facing each other;

[0008] The bottoms of the first support frame and the second support frame are rotatably connected to the top of the guide seat through hinged seats respectively, wherein the hinged seat connected to the bottom of the second support frame can be slidably adjusted toward the hinged seat connected to the bottom of the first support frame.

[0009] By adopting this technical solution, the mobile lifting platform provides basic movement and lifting functions, and on this basis, a height adjustment component is added to provide a further height adjustment function of the installation component as a lifting structure, so as to increase the accuracy of the lifting adjustment height and meet the needs of high-precision lifting; a first support frame and a second support frame facing each other are arranged in the installation component as direct contact parts for pipe lifting, and the first support frame can form a limited support for the bottom of the pipe with the second support frame through position adjustment. At the same time, if the pipe needs to be tilted, it is only necessary to control the lifting height of the mobile lifting platform or the height adjustment component to adjust the height of the pipe at the lifting point, and when the pipe is tilted, the first support frame and the second support frame can respectively rotate in coordination under the action of the articulated seat to maintain the original support surface size, so as to increase the stability of the pipe in a tilted state and meet the stable lifting requirements of pipe tilting operations within a certain range.

[0010] Further, the mobile lifting platform includes a lifting vehicle body and an adjustment operation platform installed on the top thereof;

[0011] The height adjustment component is fixed on the adjustment operation platform.

[0012] By adopting this technical solution, an adjustment operation platform is added to provide a working position for relevant personnel, and it is convenient for relevant personnel to adjust and control the height adjustment components.

[0013] Furthermore, it also includes an antenna sensor and a PID control module;

[0014] The antenna sensor is installed at the front end of the adjustment operation platform;

[0015] The PID control module is electrically connected to the antenna sensor and the lifting vehicle body respectively.

[0016] By adopting this technical solution, the antenna sensor can monitor the distance between the top of the device and the top surface of the building in real time and feed back to the PID control module, and then control the lift body through the PID control module to avoid the situation where the lift body continues to lift when the device is close to the top surface of the building, thereby increasing the safety of the operation.

[0017] Further, the height adjustment assembly includes an outer cover, a hand wheel, a screw rod, a base, a slide seat, a first support plate, a second support plate, a slide seat and a support plate;

[0018] The hand wheel is rotatably connected to one side of the outer cover and is connected to one end of the screw rod, and the other end of the screw rod is rotatably connected to a base installed on the inner bottom wall of the outer cover;

[0019] The first support plate and the second support plate are cross-arranged and rotatably connected;

[0020] The left end of the first support plate is rotatably connected to the slide seat, the slide seat is threadedly sleeved on the screw rod, and the right end of the first support plate is rotatably connected to the bottom of the support plate;

[0021] The left end of the second support plate is rotatably connected to the sliding seat, the sliding seat is slidably arranged at the bottom of the supporting plate, and the right end of the second support plate is rotatably connected to the base.

[0022] By adopting this technical solution, when actually controlling the height adjustment component, the hand wheel is shaken to drive the screw rod to rotate, and the rotation of the screw rod will drive the sliding seat connected to the left end of the first support plate to slide along the base. At the same time, since the first support plate and the second support plate are cross-rotatably connected, when the sliding seat connected to the left end of the first support plate slides along the base, it will push the sliding seat connected to the left end of the second support plate to slide along the support plate, thereby changing the angle between the first support plate and the second support plate, and then changing the height of the common support surface of the first support plate and the second support plate, thereby realizing the height adjustment of the support plate.

[0023] Furthermore, the installation assembly also includes an L-shaped connecting seat, a fixed support plate, a movable support plate and a limit rod;

[0024] The fixed support plate and the movable support plate are both vertically connected to the horizontal seat of the L-shaped connecting seat, and respectively abut against the back surfaces of the first support frame and the second support frame;

[0025] The movable support plate is slidably connected to the horizontal seat of the L-shaped connecting seat, and a yielding groove is provided on the plate corresponding to the guide seat;

[0026] The limiting rod is threadedly connected to the movable supporting plate, and one end of the limiting rod abuts against the vertical seat body of the L-shaped connecting seat.

[0027] By adopting this technical solution, the fixed support plate and the movable support plate provide outer side support for the first support frame and the second support frame respectively. After the movable support plate pushes the second support frame to move toward the first support frame, its position with the L-shaped connecting seat is fixed by the limiting rod, thereby fixing the distance between it and the fixed support plate, increasing the vertical stability of the first support frame and the second support frame after supporting both sides of the bottom of the pipeline, thereby increasing the stability of the pipeline after limited lifting.

[0028] Furthermore, the mounting assembly also includes a knob and a screw;

[0029] The knob is connected to one end of the screw rod;

[0030] The screw rod is rotatably connected to the fixed support plate, and the other end of the screw rod passes through the interior of the guide seat and is threadedly connected to the movable support plate.

[0031] By adopting this technical solution, after rotating the knob, the movable support plate will be driven to move through the screw rod, thereby changing the position of the movable support plate, and then changing the distance between the second support frame and the first support frame to meet the requirements of placing the pipeline.

[0032] Furthermore, the top surface of the first support frame is flush with the top surface of the fixed support plate, and a standard plate with a reference line is provided on the top of the fixed support plate;

[0033] The top surface of the second support frame is flush with the top surface of the movable support plate, and a level is installed on the top of the second support frame.

[0034] By adopting this technical solution, by observing the intersection angle between the first support frame and the reference line on the standard plate, it is possible to determine whether the supported pipeline is tilted and to which side it is tilted, thereby providing a reference for pipeline leveling; the spirit level can directly determine the tilt state of the second support frame, thereby providing feedback on the tilt state of the pipeline, providing a reference for pipeline leveling.

[0035] Furthermore, the surface of the guide seat is provided with scale lines corresponding to the sliding adjustment range of the hinge seat connected to the bottom of the second support frame.

[0036] By adopting this technical solution, the scale line can directly feedback the distance between the second support frame and the first support frame. Based on this, the distance between the second support frame and the first support frame can be quickly adjusted according to the outer diameter of the pipeline for adaptive lifting, which facilitates rapid clamping and support of the pipeline.

[0037] Furthermore, the facing sides of the first support frame and the second support frame are both arc-shaped.

[0038] By adopting this technical solution, the outer wall shape of the pipeline is adapted to increase the contact area with the pipeline, thereby increasing the stability during the pipeline lifting process.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1. A rotatable first support frame and a second support frame are set to support the pipeline, and a height adjustment component is set to adjust the inclination of the pipeline. After the pipeline is tilted, the first support frame and the second support frame are rotated by themselves to maintain the fitting state with the first support frame and the second support frame, so as to maintain the lifting stability of the pipeline after tilting, which can meet the needs of pipeline tilting operation.

[0041] 2. Before and after the pipeline is lifted, the first support frame and the second support frame can directly feedback the status of the pipeline in conjunction with the level meter and the standard plate, and the height of the pipeline lifting position can be adjusted in time according to the lifting requirements.

[0042] 3. The antenna sensor is set to cooperate with the PID control module to control the lifting vehicle body to avoid safety problems caused by over-lifting and increase the safety of pipeline lifting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the pipeline lifting and positioning device of the present invention;

[0044] Figure 2 It is a schematic diagram of the connection between the height adjustment component and the installation component in the pipeline lifting and positioning device of the present invention;

[0045] Figure 3 It is a cross-sectional schematic diagram of a height adjustment component in the pipeline lifting and positioning device of the present invention;

[0046] Figure 4 It is a three-dimensional schematic diagram of the installation components in the pipeline lifting and positioning device of the present invention;

[0047] Figure 5 It is a cross-sectional schematic diagram of the installation components in the pipeline lifting and positioning device of the present invention;

[0048] Figure 6 It is a schematic diagram of the exploded installation components in the pipeline lifting and positioning device of the present invention;

[0049] Figure 7 It is a three-dimensional schematic diagram of a movable support member in the pipeline lifting and positioning device of the present invention;

[0050] Figure 8 This is an enlarged view of the connection part of the limit rod in the pipeline lifting and positioning device of the present invention.

[0051] Explanation of the accompanying drawings: 1. Lifting vehicle body; 2. Adjusting operating platform; 3. Antenna sensor; 4. Height adjustment assembly; 41. Vertical pole; 42. Outer cover; 43. Hand wheel; 44. Screw rod; 45. Base; 46. Sliding seat; 47. First support plate; 48. Second support plate; 49. Sliding seat; 410. Support plate; 5. Installation assembly; 51. L-shaped connecting seat; 52. Fixed support plate; 53. Standard plate; 54. Guide seat; 55. Knob; 56. Screw rod; 57. Movable support member; 571. Movable support plate; 572. Limit rod; 573. Second support frame; 574. Level; 58. First support frame; 59. Articulated seat; 6. PID control module. DETAILED DESCRIPTION

[0052] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0053] Please see attached Figure 1 , 47. The present invention provides a pipeline lifting and positioning device, comprising a mobile lifting platform, a height adjustment component 4 and a mounting component 5 connected in sequence from bottom to top; the mobile lifting platform provides basic movement and lifting functions, on this basis, the height adjustment component 4 is added to provide a further height adjustment function of the mounting component 5 as a lifting structure, so as to increase the accuracy of the lifting height adjustment and meet the demand for high-precision lifting;

[0054] The installation assembly 5 includes a guide seat 54, a first support frame 58, a second support frame 573 and an articulated seat 59; the first support frame 58 and the second support frame 573 are both L-shaped and arranged opposite to each other; the bottoms of the first support frame 58 and the second support frame 573 are rotatably connected to the top of the guide seat 54 through the articulated seat 59, respectively, wherein the articulated seat 59 connected to the bottom of the second support frame 573 can be slidably adjusted toward the articulated seat 59 connected to the bottom of the first support frame 58; the first support frame 58 and the second support frame 573 facing each other are arranged in the installation assembly 5 as direct supports for pipe lifting. Contact piece, the first support frame 58 can form a limited support for the bottom of the pipeline with the second support frame 573 through position adjustment. At the same time, if the pipeline needs to be tilted, it is only necessary to control the lifting height of the mobile lifting platform or the height adjustment component 4 to adjust the height of the pipeline at the lifting point. When the pipeline is tilted, the first support frame 58 and the second support frame 573 can be adaptively rotated under the action of the hinge seat 59 respectively to maintain the original support surface size, so as to increase the stability of the pipeline in the tilted state and meet the stable support requirements of the pipeline tilting operation within a certain range.

[0055] For further information, see Figure 1 The mobile lifting platform includes a lifting vehicle body 1 and an adjustment operation platform 2 installed on the top thereof; a height adjustment component 4 is fixed on the adjustment operation platform 2; the adjustment operation platform 2 is added to provide a working position for relevant personnel, and at the same time facilitates relevant personnel to adjust and control the height adjustment component 4;

[0056] The pipeline lifting and positioning device also includes an antenna sensor 3 and a PID control module 6; the antenna sensor 3 is installed at the front end of the adjustment operation platform 2; the PID control module 6 is electrically connected to the antenna sensor 3 and the lifting vehicle body 1 respectively; the lifting vehicle body 1 implements PID control technology through the PID control module 6, and adjusts the output signal according to the difference between the current state of the lifting vehicle body 1 and the set value, so that the difference approaches zero, thereby achieving precise control of the lifting vehicle body 1, and then controlling the operation of the pipeline lifting and positioning device, slowly lifting the adjustment operation platform 2, and in the process of rising, the antenna sensor 3 is used for safety distance sensing. The sensor 3 will emit electromagnetic waves of a certain frequency upwards, and these electromagnetic waves will propagate in space. When the electromagnetic waves encounter an object, a part of the electromagnetic waves will be reflected back, and these reflected electromagnetic waves will be received by the antenna sensor 3. Next, the antenna sensor 3 will process the received electromagnetic waves. It will measure the time delay and phase difference of the electromagnetic waves, thereby calculating the distance and direction between the object and the sensor, and feedback to the PID control module 6. The PID control module 6 will then be used to control the lift body 1, so as to avoid the situation where the lift body 1 continues to lift when the device is close to the object or the top of the building, thereby increasing the safety of the operation.

[0057] See also Figure 2-3 , the height adjustment assembly 4 includes a vertical rod 41, an outer cover 42, a hand wheel 43, a screw rod 44, a base 45, a slide 46, a first support plate 47, a second support plate 48, a sliding seat 49 and a support plate 410; the outer cover 42 is fixed to the adjustment operation platform 2 through the vertical rod 41; the hand wheel 43 is rotatably connected to one side of the outer cover 42 and is connected to one end of the screw rod 44, and the other end of the screw rod 44 is rotatably connected to the base 45 installed on the inner bottom wall of the outer cover 42; the first support plate 47 and the second support plate 48 are cross-arranged and rotatably connected; the left end of the first support plate 47 is rotatably connected to the slide 46, the slide 46 is threadedly sleeved on the screw rod 44, and the right end of the first support plate 47 is rotatably connected to the bottom of the support plate 410; the left end of the second support plate 48 is rotatably connected to the sliding seat 49, the sliding seat 49 is slidably arranged at the bottom of the support plate 410, and the right end of the second support plate 48 is rotatably connected to the base 45;

[0058] When actually controlling the height adjustment component 4, the screw rod 44 is driven to rotate by shaking the hand wheel 43. The rotation of the screw rod 44 will drive the sliding seat 46 connected to the left end of the first support plate 47 to slide along the base 45. At the same time, since the first support plate 47 and the second support plate 48 are cross-rotatably connected, when the sliding seat 46 connected to the left end of the first support plate 47 slides along the base 45, it will push the sliding seat 49 connected to the left end of the second support plate 48 to slide along the support plate 410, thereby changing the angle between the first support plate 47 and the second support plate 48, and then changing the height of the common supporting surface of the first support plate 47 and the second support plate 48, thereby realizing the height adjustment of the support plate 410.

[0059] See also Figure 4-8 The mounting assembly 5 further comprises an L-shaped connecting seat 51, a fixed supporting plate 52, a movable supporting plate 571 and a limiting rod 572; the fixed supporting plate 52 and the movable supporting plate 571 are both vertically connected to the horizontal seat of the L-shaped connecting seat 51, and respectively abut against the back surfaces of the first supporting frame 58 and the second supporting frame 573; wherein the movable supporting plate 571 is slidably connected to the horizontal seat of the L-shaped connecting seat 51, and a giving groove is provided on its plate corresponding to the guide seat 54; the limiting rod 572 is threadedly connected to the movable supporting plate 571, and one end thereof abuts against the vertical seat of the L-shaped connecting seat 51;

[0060] The fixed support plate 52 and the movable support plate 571 provide outer side support for the first support frame 58 and the second support frame 573 respectively. After the movable support plate 571 pushes the second support frame 573 to move toward the first support frame 58, the position of the movable support plate 571 and the L-shaped connecting seat 51 are fixed by the limiting rod 572, thereby fixing the distance between the movable support plate 52 and the fixed support plate 52, increasing the vertical stability of the first support frame 58 and the second support frame 573 after supporting both sides of the bottom of the pipeline, thereby increasing the stability of the pipeline after limited lifting.

[0061] Furthermore, in order to increase the stability of the movable support plate 571 sliding on the horizontal body of the L-shaped connecting seat 51, an adaptive sliding groove is provided on the L-shaped connecting seat 51.

[0062] For further information, see Figure 5-6 The giving way groove is an inverted U-shaped groove, the cross-section of the guide seat 54 is correspondingly an inverted U-shaped, and one end of the guide seat 54 that passes through the movable support plate 571 forms a limit with the outer facade of the movable support plate 571, thereby preventing the movable support plate 571 from separating from the guide seat 54.

[0063] For further information, see Figure 5 The mounting assembly 5 further includes a knob 55 and a screw 56; the knob 55 is connected to one end of the screw 56; the screw 56 is rotatably connected to the fixed support plate 52, and the other end thereof passes through the interior of the guide seat 54 and is threadedly connected to the movable support plate 571;

[0064] After rotating the knob 55, the movable support plate 571 is driven to move through the screw rod 56, thereby changing the position of the movable support plate 571, and then changing the distance between the second support frame 573 and the first support frame 58 to meet the requirements of placing the pipeline.

[0065] Furthermore, the top surface of the first support frame 58 is flush with the top surface of the fixed support plate 52, and a standard plate 53 with a reference line is provided on the top of the fixed support plate 52; by observing the intersection angle between the first support frame 58 and the reference line on the standard plate 53, it can be determined whether the supported pipeline is tilted and to which side it is tilted, thereby providing a reference basis for pipeline leveling;

[0066] The top surface of the second support frame 573 is flush with the top surface of the movable support plate 571, and a level 574 is installed on the top of the second support frame 573; the level 574 can directly determine the inclination state of the second support frame 573, thereby feeding back the inclination state of the pipeline and providing a reference for pipeline leveling.

[0067] For further information, see Figure 6 The surface of the guide seat 54 is provided with scale lines corresponding to the sliding adjustment range of the hinged seat 59 connected to the bottom of the second support frame 573; the scale lines can directly feedback the distance between the second support frame 573 and the first support frame 58. On this basis, the distance between the second support frame 573 and the first support frame 58 can be quickly adjusted according to the outer diameter of the pipeline for adaptive lifting, so as to facilitate rapid clamping and support of the pipeline.

[0068] Furthermore, in order to enable the scale line to directly reflect the diameter of the inserted pipe, the length between the initial value of the scale line and the right end of the guide seat 54 is set to be the same as the sum of the top lengths of the first support frame 58 and the second support frame 573 after abutting against each other. In this way, the distance between the top ends of the first support frame 58 and the second support frame 573 can be adjusted to the pipe diameter according to the scale line, which is convenient for embedding the pipe, and then a small adjustment can be made to clamp it.

[0069] Furthermore, the facing sides of the first support frame 58 and the second support frame 573 are both arc-shaped; they adapt to the shape of the outer wall of the pipeline to increase the contact area with the pipeline, thereby increasing the stability during the pipeline lifting process.

[0070] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A pipeline lifting and positioning device, characterized in that: It includes a mobile lifting platform, a height adjustment component and a mounting component which are sequentially connected from bottom to top; The mounting assembly comprises a guide seat, a first support frame, a second support frame and an articulated seat; The first support frame and the second support frame are both in an 'L' shape and are arranged facing each other; The bottoms of the first support frame and the second support frame are rotatably connected to the top of the guide seat through hinged seats respectively, wherein the hinged seat connected to the bottom of the second support frame can be slidably adjusted toward the hinged seat connected to the bottom of the first support frame.

2. The pipeline lifting and positioning device according to claim 1, characterized in that: The mobile lifting platform includes a lifting vehicle body and an adjustment operation platform installed on the top thereof; The height adjustment component is fixed on the adjustment operation platform.

3. The pipeline lifting and positioning device according to claim 2, characterized in that: It also includes antenna sensor and PID control module; The antenna sensor is installed at the front end of the adjustment operation platform; The PID control module is electrically connected to the antenna sensor and the lifting vehicle body respectively.

4. The pipeline lifting and positioning device according to claim 1, characterized in that: The height adjustment assembly includes an outer cover, a hand wheel, a screw rod, a base, a slide seat, a first support plate, a second support plate, a slide seat and a support plate; The hand wheel is rotatably connected to one side of the outer cover and is connected to one end of the screw rod, and the other end of the screw rod is rotatably connected to a base installed on the inner bottom wall of the outer cover; The first support plate and the second support plate are cross-arranged and rotatably connected; The left end of the first support plate is rotatably connected to the slide seat, the slide seat is threadedly sleeved on the screw rod, and the right end of the first support plate is rotatably connected to the bottom of the support plate; The left end of the second support plate is rotatably connected to the sliding seat, the sliding seat is slidably arranged at the bottom of the supporting plate, and the right end of the second support plate is rotatably connected to the base.

5. The pipeline lifting and positioning device according to claim 1, characterized in that: The installation assembly also includes an L-shaped connecting seat, a fixed support plate, a movable support plate and a limit rod; The fixed support plate and the movable support plate are both vertically connected to the horizontal seat of the L-shaped connecting seat, and respectively abut against the back surfaces of the first support frame and the second support frame; The movable support plate is slidably connected to the horizontal seat of the L-shaped connecting seat, and a yielding groove is provided on the plate corresponding to the guide seat; The limiting rod is threadedly connected to the movable supporting plate, and one end of the limiting rod abuts against the vertical seat body of the L-shaped connecting seat.

6. The pipeline lifting and positioning device according to claim 5, characterized in that: The mounting assembly also includes a knob and a screw; The knob is connected to one end of the screw rod; The screw rod is rotatably connected to the fixed support plate, and the other end of the screw rod passes through the interior of the guide seat and is threadedly connected to the movable support plate.

7. The pipeline lifting and positioning device according to claim 5, characterized in that: The top surface of the first support frame is flush with the top surface of the fixed support plate, and a standard plate with a reference line is provided on the top of the fixed support plate; The top surface of the second support frame is flush with the top surface of the movable support plate, and a level is installed on the top of the second support frame.

8. The pipeline lifting and positioning device according to claim 1, characterized in that: The surface of the guide seat is provided with scale lines corresponding to the sliding adjustment range of the hinge seat connected to the bottom of the second support frame.

9. The pipeline lifting and positioning device according to claim 1, characterized in that: The facing sides of the first support frame and the second support frame are both arc-shaped.