A comprehensive pipe gallery pipeline lifting device for multi-layer pipeline installation

Abstract

The present invention discloses an integrated pipeline corridor pipeline lifting device for multi-layer pipeline installation in the technical field of pipeline laying in pipeline corridors, comprising a supporting platform and four universal AVG wheels arranged on the supporting platform, wherein two lifting groups are arranged on the supporting platform; the two lifting groups are arranged in a mirror image with respect to the middle of the top surface of the supporting platform; before the pipeline is installed, the present invention can facilitate the placement of the pipeline while increasing the receiving area of ​​the lifting plate by pushing the push plate, and then the pipeline is moved to the left to the inside of the notch and fit with the contact plate by pushing the push plate, thereby limiting the position of the pipeline, and the length of the front and rear ends of the pipeline protruding from the lifting plate is adjusted by rotating the contact wheel, thereby preventing the pipeline from shaking during the movement of the supporting platform and the rising of the lifting plate.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline laying in a pipeline gallery, and specifically to an integrated pipeline gallery pipeline lifting device for multi-layer pipeline installation. Background Art

[0002] In large airports, municipal utilities and other complex buildings, the installation of multi-layer electromechanical pipelines in the integrated pipeline corridor requires the laying of the pipelines in three layers, upper, middle and lower, along both sides of the corridor. Since the pipelines are large and heavy and the space in the corridor is limited, conventional lifting equipment is not convenient for lifting the pipelines. Generally, the pipelines are lifted onto a lifting machine with a smaller footprint, and the lifting machine is used to transport, lift and subsequently install the pipelines.

[0003] When the pipeline is hoisted onto the lifting plate of the lifting machine, the pipeline may shake or rotate during the lifting process, causing the pipeline to be tilted when it is lifted to the top surface of the lifting plate. This will cause the fulcrum positions of the pipeline on the two lifting plates to be different. The weight of the pipeline supported by the two lifting plates is uneven, resulting in insufficient stability when the lift is lifting the pipeline. The vibration of the lift itself will cause the pipeline position to shift further during the lifting process. In severe cases, the pipeline may fall from the lift, causing a serious accident. Summary of the invention

[0004] The object of the present invention is to provide a pipeline lifting device for an integrated pipeline gallery for multi-layer pipeline installation to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a pipeline lifting device for a multi-layer pipeline installation integrated pipe gallery, comprising a support platform and four universal AVG wheels arranged on the support platform, wherein two lifting groups are arranged on the support platform; the two lifting groups are arranged in a mirror image with respect to the middle of the top surface of the support platform;

[0006] The lifting group includes a lifting plate, which is slidably connected to the supporting platform, and a driving group is arranged under the lifting plate, and the driving group is used to drive the lifting plate to rise and fall, and a notch is opened on the lifting plate. The first connecting rod is fixedly connected to the lifting plate, and a connecting piece is slidably connected to the first connecting rod, and a contact plate is horizontally slidably installed on the connecting piece, and the contact plate is arc-shaped, and the lifting plate is fixedly connected to the second connecting rod on the side away from the first connecting rod, and the second connecting rod is slidably connected to the push plate, and a translation group is arranged on the lifting plate, and the translation group is used to drive the connecting piece and the push plate to translate along the first connecting rod and the second connecting rod respectively, and two contact wheels are rotatably connected to the lifting plate, and the two contact wheels are used to adjust the position in the front and rear directions of the pipe to be installed; the rotating shafts of the contact wheels are connected to the first motor for driving them to rotate.

[0007] As a further solution of the present invention, the driving group includes a top plate and a slide groove, the top plate is slidably connected to the lifting plate, a hydraulic rod is fixedly connected between the bottom end of the top plate and the supporting platform, the slide groove is opened on the connecting piece, and the contact plate is slidably connected to the slide groove.

[0008] As a further solution of the present invention, a first card block is fixedly connected to the right side of the top surface of the top plate, a second card block is arranged on the left side of the first card block, the second card block is slidably connected to the lifting plate, and a trigger group is arranged on one side of the first card block, and the trigger group is used to drive the second card block to move upward.

[0009] As a further solution of the present invention, the trigger group includes a driving frame, the driving frame is U-shaped, a roller is rotatably connected to the driving frame, the driving frame is rotatably connected to a cross bar, a torsion spring is sleeved on the rotating shaft of the driving frame, the cross bar is slidably connected to the lifting plate, a spring is fixedly connected between one end of the cross bar and the lifting plate, the other end of the cross bar is rotatably connected to a support rod, and the top end of the support rod is rotatably connected to the bottom of the second block;

[0010] A locking group is provided on one side of the cross bar, and the locking group is used to prevent the pipeline from retreating when the pipeline moves.

[0011] As a further solution of the present invention, the locking group includes a one-way gear, which is rotatably connected to the side wall of the cross bar, and a rack rod is meshed below the one-way gear, and the rack rod is fixedly connected to the top plate.

[0012] As a further solution of the present invention, the translation group includes a first pushing group and a second pushing group;

[0013] The first pushing group includes a first threaded rod, the first threaded rod is rotatably connected to the connecting member and the right end of the first threaded rod is rotatably connected to the first connecting rod, the left end of the first threaded rod is fixedly connected to a second motor, and the second motor is fixedly connected to the first connecting rod.

[0014] As a further solution of the present invention, the second pushing group includes a second threaded rod, the second threaded rod is threadedly connected to the push plate, the right end of the second threaded rod is rotatably connected to the second connecting rod, the left end of the second threaded rod passes through the lifting plate and extends to the left side of the lifting plate, the left end of the second threaded rod is fixedly connected to a third motor, and the third motor is fixedly connected to the lifting plate.

[0015] As a further solution of the present invention, outrigger cylinders are fixedly connected to the four corners of the bottom surface of the support platform.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Before installing the pipeline, the present invention pushes the pipeline to the left to the inside of the notch and fits with the contact plate to limit the pipeline, and the length of the front and rear ends of the pipeline protruding from the lifting plate is adjusted by rotating the contact wheel, thereby avoiding the pipeline from shaking during the movement of the supporting platform and the rising of the lifting plate, and the offset of the front and rear ports of the pipeline can be calibrated before limiting, so as to facilitate alignment in the subsequent installation process. When the vertical installation height of the pipeline is reached, the pipeline is pushed to the horizontal installation position by the simultaneous movement of the push plate and the contact plate, and the pipeline is stopped in a calibrated state, thereby facilitating the installation of the pipeline and the alignment of adjacent pipelines.

[0018] When the push plate, contact plate and notch limit the pipeline, the pipeline is at the leftmost side of the lifting plate. At this time, the force arm of the lifting plate will be shortened, and the left and right offsets of the two ends of the pipeline will be calibrated. Then, the distance between the front and rear ends of the pipeline protruding from the lifting plate will be adjusted under the rotation of the contact wheel, so that the lifting plate is evenly stressed to avoid the possibility of subsequent pipeline slipping or reduced installation accuracy caused by bending of the lifting plate due to uneven force, thereby improving the installation efficiency and enhancing the service life of the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the inclination of the pipeline when it is hung on the lifting plate;

[0020] Figure 2 This is a schematic diagram of the pipeline moving from the right side to the left side of the lifting plate;

[0021] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the lifting group of the present invention;

[0023] Figure 5 It is a schematic diagram of the pipeline of the present invention being inside the notch;

[0024] Figure 6 It is a schematic diagram of the internal structure of the lifting plate of the present invention;

[0025] Figure 7 It is a schematic diagram of the positional relationship between the top plate and the driving frame of the present invention when they are in a horizontal state;

[0026] Figure 8 It is a schematic diagram of the positional relationship between the one-way gear, the crossbar and the driving frame of the present invention;

[0027] Fig. 9 It is a schematic diagram of the positional relationship between the driving frame and the top plate when the driving frame of the present invention is tilted;

[0028] Fig.10 It is a structural schematic diagram of the translation group of the present invention.

[0029] In the accompanying drawings, the reference numerals are annotated as follows:

[0030] 1. Support platform; 2. Universal AVG wheel; 3. Lifting plate; 4. Notch; 5. First connecting rod; 6. Connector; 7. Contact plate; 8. Second connecting rod; 9. Push plate; 10. Contact wheel; 11. First motor; 12. Top plate; 13. Hydraulic rod; 14. Slide; 15. First clamping block; 16. Second clamping block; 17. Driving frame; 18. Roller; 19. Cross bar; 20. Torsion spring; 21. Spring; 22. Support rod; 23. One-way gear; 24. Rack rod; 25. First threaded rod; 26. Second threaded rod; 27. Second motor; 28. Third motor; 29. ​​Outrigger cylinder. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is by no means intended to limit the invention and its application or use. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the invention without creative effort are within the scope of protection of the invention.

[0033] See also Figure 1-Figure 10 The present invention provides a technical solution: a pipeline lifting device for a multi-layer pipeline installation, comprising a support platform 1 and four universal AVG wheels 2 arranged at the bottom of the support platform 1, wherein the installation of the universal AVG wheels 2 is a conventional setting and will not be described in detail. Two lifting groups are arranged on the support platform 1; the lifting groups are used to jointly support the pipeline and stably lift the pipeline to the installation position;

[0034] The lifting group includes a lifting plate 3, which is slidably connected to the supporting platform 1. A driving group is arranged below the lifting plate 3, and the driving group is used to drive the lifting plate 3 to rise and fall. A notch 4 is opened on the lifting plate 3. A first connecting rod 5 is fixedly connected to the lifting plate 3, and a connecting member 6 is slidably connected to the first connecting rod 5. A contact plate 7 is arranged on the connecting member 6, and the contact plate 7 is arc-shaped. A second connecting rod 8 is fixedly connected to the side of the lifting plate 3 away from the first connecting rod 5, and a push plate 9 is slidably connected to the second connecting rod 8. A translation group is arranged on the lifting plate 3, and the translation group is used to drive the connecting member 6 and the push plate 9 to translate along the first connecting rod 5 and the second connecting rod 8 respectively. Two contact wheels 10 are rotatably connected to the side wall of the lifting plate 3, and the two contact wheels 10 are slightly higher than the notch 4. The rotating shafts of the contact wheels 10 are fixedly connected to the first motors 11, and the first motors 11 are fixedly connected to the side walls of the lifting plate 3.

[0035] like Figure 3 and Figure 4 As shown:

[0036] The pipeline is hoisted from the outside of the pipe gallery to the two lifting plates 3 by a crane, and the pipeline is adjusted after the hoisting is completed;

[0037] The adjustment works as follows:

[0038] After the pipeline is hoisted, it will be in an inclined state. Figure 1 When the pipe is placed on the two lifting plates 3, the vertical distances L1 and L2 between the two ends of the pipe and the lifting plates 3 are different. When adjusting, the push plate 9 is first driven by the translation group to slide from the right to the left along the second connecting rod 8. The two push plates 9 will contact the pipes successively. After the push plates 9 contact the pipes, they will push the pipes to roll to the left on the lifting plates 3 (or be directly pushed), so that the pipes and the lifting plates 3 are in a vertical state. At this time, one adjustment of the pipe is completed. When the push plates 9 are pushed to the position of the notch 4, the pipes will enter the notch 4, and at this time, the side walls of the pipes will be in a state of mutual conflict with the inner walls of the contact plates 7. The push plates 9, the notch 4 and the contact plates 7 can limit the pipes. When the universal AVG wheels 2 drive the supporting platform 1 to move inside the pipe gallery, the pipes will not shake or collide. In the process of limiting the pipes, the end position of the pipes moves from the right side of the lifting plates 3 to the leftmost side (that is, by Figure 2 The position L4 shown in the figure is moved to the position L3), at this time, the force arm of the lifting plate 3 supporting the pipeline is shortened, thereby reducing the load of the lifting plate 3, which can improve the load-bearing capacity of the lifting plate 3, and at the same time, the lifting plate 3 has better stability when lifting the pipeline;

[0039] A longer lift plate 3 that can be raised and lowered is provided to increase the bearing surface area for lifting the pipe, thereby reducing the difficulty of accurately lifting the pipe onto the lift plate 3 and avoiding collision of the pipe when adjusting the position during lifting. At the same time, the lifting group and driving group used in conjunction with the lift plate 3 can correct the position of the pipe and stably lift it to the installation position.

[0040] When the pipe is limited by the push plate 9, the notch 4 and the contact plate 7, the rotation of the first motor 11 drives the contact wheel 10 to rotate, and the pipe is adjusted in the front-back direction so that L1 and L2 can be nearly equal, so that the two lifting plates 3 evenly share the weight of the pipe, and the state of the pipe is more stable during lifting, and the problem of the pipe falling off from the lifting plate 3 will not occur;

[0041] The support platform 1 is driven to move to the installation position by the universal AVG wheel 2, and the lifting plate 3 is lifted by the driving group to move the lifting plate 3 along the support platform 1. When the pipeline is lifted to the vertical installation height, the connecting member 6 and the contact plate 7 are driven to move to the right on the first connecting rod 5 by the translation group, and the push plate 9 is driven to move to the right along the second connecting rod 8 at the same time. At this time, the contact plate 7 will push the pipeline out from the inside of the notch 4 and then move to the right under the limit of the contact plate 7 and the push plate 9. When the pipeline is moved to the horizontal installation position (the horizontal installation height refers to the maximum distance that the pipeline is pushed to the right), the horizontal position of the support platform 1 can be adjusted by the universal AVG wheel 2 to fix the distance between the pipeline and the inner wall of the pipe gallery, and then the contact plate 7 and the push plate 9 are moved to the initial position to the far left and the far right respectively by the translation group, and then the fixing part is installed under the pipeline, and then the pipeline can be lowered onto the fixing part, and then it can be installed;

[0042] Before the installation of the pipeline, the push of the push plate 9 can increase the receiving area of ​​the lifting plate 3 and facilitate the placement of the pipeline. Then, the push of the push plate 9 can make the pipeline move to the left to the inside of the notch 4 and fit with the receiving plate 7, thereby limiting the pipeline. The length of the front and rear ends of the pipeline protruding from the lifting plate 3 can be adjusted by rotating the contact wheel 10, thereby avoiding the pipeline from shaking during the movement of the support platform 1 and the rising of the lifting plate 3. Before limiting, the offset of the front and rear ports of the pipeline can be calibrated to facilitate alignment in the subsequent installation process. When the vertical installation height of the pipeline is reached, the pipeline is pushed to the horizontal installation position by the simultaneous movement of the push plate 9 and the contact plate 7, and the pipeline is stopped in a calibrated state, thereby facilitating the installation of the pipeline and the alignment of adjacent pipelines.

[0043] After the push plate 9, the contact plate 7 and the notch 4 limit the position of the pipeline, the pipeline is at the leftmost side of the lifting plate 3. At this time, the force arm of the lifting plate 3 is shorter, and the left and right position offsets of the two ends of the pipeline have been calibrated. Then, under the rotation of the contact wheel 10, the distance between the front and rear ends of the pipeline extending from the lifting plate 3 is adjusted, so that the lifting plate 3 is evenly stressed to avoid deformation of the lifting plate 3 due to uneven force, causing the pipeline to slip or the installation accuracy to decrease. While improving the installation efficiency, it also enhances the service life of the lifting plate 3.

[0044] The driving group includes a top plate 12 and a slide groove 14. The top plate 12 is slidably connected to the lifting plate 3. A hydraulic rod 13 is fixedly connected between the bottom end of the top plate 12 and the supporting platform 1. The slide groove 14 is opened on the connecting member 6. The contact plate 7 is located inside the slide groove 14 and is slidably connected to the slide groove 14.

[0045] like Figure 4 and Figure 6 As shown:

[0046] When the pipe enters the notch 4, the pipe is limited by the notch 4, the push plate 9 and the contact plate 7. The first motor 11 rotates to drive the contact wheel 10 to adjust the pipe in the front-back direction, and then the support platform 1 can be moved to the installation position.

[0047] See also Figure 6 It should be noted that the top plate 12 is located below the lifting plate 3 before the hydraulic rod 13 is extended, but has a certain distance and does not contact the lifting plate 3. When the hydraulic rod 13 is extended, the top plate 12 will be driven to rise first. When the top plate 12 rises to contact the pipe located inside the notch 4 and above the contact wheel 10, the pipe will be lifted to a position horizontal to the lifting plate 3. When the pipe rises, the contact plate 7 will be driven to slide along the connecting piece 6 to adapt to the rise of the pipe. After the top plate 12 contacts the lifting plate 3, it will drive the lifting plate 3 to rise, thereby connecting the pipe to the lifting plate 3. The lifting plate 3 is lifted up together, and when the pipeline rises to the vertical installation height, it can stop, and then the connecting member 6 is driven to slide along the first connecting rod 5 through the translation group, so that the contact plate 7 and the push plate 9 keep limiting the pipeline while moving the pipeline to the right. At this time, the top plate 12 has lifted the pipeline, and the top of the top plate 12 is at the same horizontal height as the top of the lifting plate 3. Then, when the contact plate 7 pushes the pipeline to move, the pipeline is not lifted upward from the inside of the notch 4, but moves directly in the horizontal direction, thereby reducing the force of the contact plate 7 pushing the pipeline out of the notch 4.

[0048] When the pipeline is installed, the contact plate 7 and the push plate 9 are reset, and the rear hydraulic rod 13 is shortened. When the lifting plate 3 slides down along the support platform 1 to the limit, the lifting plate 3 stops descending, and the rear hydraulic rod 13 descends to drive the top plate 12 to descend and stop after it is separated from the lifting plate 3.

[0049] A first card block 15 is fixedly connected to the top plate 12 near the right side, a second card block 16 is arranged on the left side of the first card block 15, the second card block 16 is slidably connected to the outer wall of the lifting plate 3, and a trigger group is arranged on one side of the first card block 15, the trigger group is used to drive the second card block 16 to rise.

[0050] like Figure 5-Figure 8 As shown:

[0051] When the hydraulic rod 13 is extended to push the top plate 12 to move, the top plate 12 will drive the first clamping block 15 to rise. When the first clamping block 15 rises to the limit height, the pipeline is at the leftmost side of the lifting plate 3, so the first clamping block 15 is at the right side of the pipeline and there is a large distance between it and the pipeline. Then the translation group drives the connecting piece 6 and the contact plate 7 to move to the right and the push plate 9 to move to the right at the same time, so as to move the pipeline to the right. When the pipeline moves to the right and contacts with the first clamping block 15, the movement of the pipeline can be stopped, and then the trigger group makes the second clamping block 16 slide along the lifting plate 3 to the point where it contacts the pipeline. The pipeline is contacted with the right side of the pipeline, and at this time, the pipeline is limited by the first clamping block 15 and the second clamping block 16, and then the universal AVG wheel 2 can drive the supporting platform 1 to move in the horizontal or front-to-back direction to align the pipeline with the adjacent pipeline. During the alignment process, the pipeline is limited by the first clamping block 15 and the second clamping block 16, thereby avoiding movement during pipeline installation and ensuring that the pipeline is in a calibrated state during installation. After the pipeline installation is completed, the lifting plate 3 is driven to descend by shortening the hydraulic rod 13 to disengage the first clamping block 15 and the second clamping block 16 from the pipeline.

[0052] The trigger group includes a driving frame 17, which is U-shaped, and a roller 18 is rotatably connected to the driving frame 17, and a cross bar 19 is rotatably connected to the driving frame 17. A torsion spring 20 is sleeved on the rotating shaft of the driving frame 17, and the cross bar 19 is slidably connected to the lifting plate 3. A spring 21 is fixedly connected between the cross bar 19 and the inner wall of the lifting plate 3. The end of the cross bar 19 is located on the outer side of the lifting plate 3 and the bottom end thereof is rotatably connected to a support rod 22, and the top end of the support rod 22 is rotatably connected to the bottom of the second block 16;

[0053] A locking group is provided on one side of the cross bar 19, and the locking group is used to prevent the pipeline from retreating when the pipeline moves.

[0054] like Figure 5-Figure 9 As shown:

[0055] When the hydraulic rod 13 is extended to drive the top plate 12 to rise to contact the lifting plate 3, the bottom end of the driving frame 17, which was originally at the top level, will be lifted up by the top plate 12, so that the rotating shaft of the driving frame 17 will rotate around the cross bar 19 and compress the torsion spring 20. At this time, the top end of the driving frame 17 will rotate to a tilted state, such as Fig. 9 As shown, after the driving frame 17 is transformed into the inclined state, its end is located on the left side of the first clamping block 15 that has been extended above the lifting plate 3;

[0056] When the contact plate 7 and the push plate 9 synchronously drive the pipeline to move to the right until it contacts the roller 18 on the driving frame 17, the pipeline will push the roller 18 during the movement so that it and the driving frame 17 drive the cross bar 19 to slide to the right along the lifting plate 3. At this time, the spring 21 will be compressed, and when the cross bar 19 slides, the bottom end of the driving frame 17 will maintain contact with the top of the top plate 12 and move to the right. While the cross bar 19 slides to the right, its end will gradually push the second block 16 to slide up along the lifting plate 3 through the support rod 22, and then gradually rise from a position lower than the lifting plate 3. When the contact plate 7 pushes the pipeline to the right to the limit, the pipeline will move to a position in contact with the first block 15, but at this time the second block 16 also rises to a position in contact with the right side of the pipeline. At this time, the contact plate 7 and the push plate 9 can reset the pipeline after the first block 15 and the second block 16 limit the pipeline, and then the support platform 1 can be driven to move forward and backward or left and right through the universal AVG wheel 2 to drive the relative movement of the pipeline and the adjacent pipeline or the inner wall of the pipe gallery;

[0057] When the second clamping block 16 rises, the locking group can limit the second clamping block 16 to prevent it from resetting.

[0058] The locking assembly includes a one-way gear 23 , which is rotatably connected to the side wall of the crossbar 19 , and a rack rod 24 is meshed below the one-way gear 23 , and the rack rod 24 is fixedly connected to the top plate 12 .

[0059] like Figure 7 and Figure 8 As shown:

[0060] When the hydraulic rod 13 drives the top plate 12 to rise to contact with the lifting plate 3, the rack rod 24 will rise to a height that meshes with the one-way gear 23. The one-way gear 23 is a gear that has the freedom to rotate in one direction (clockwise here). When the pipe is pushed to the right by the contact plate 7 and the push plate 9 to contact with the roller 18, the cross bar 19 moves to the right along the lifting plate 3. At this time, the one-way gear 23 will mesh with the rack rod 24 while moving to the right. When the pipe contacts the first clamping block 15, the second clamping block 16 rises to a position that contacts the pipe, and then the contact plate 7 and the push plate 9 are reset. At this time, the reset of the second clamping block 16 can be limited by the rack rod 24, so that it can limit the pipe with the first clamping block 15 to prevent the pipe from moving.

[0061] When the pipeline is installed, the top plate 12 is separated from the lifting plate 3, and the rack rod 24 is separated from the one-way gear 23. At this time, the spring 21 can drive the cross bar 19 to reset, and the torsion spring 20 drives the drive frame 17 to reset after the top plate 12 is lowered.

[0062] The translation group includes a first pushing group and a second pushing group;

[0063] The first pushing group includes a first threaded rod 25 , which is rotatably connected to the connecting member 6 and whose right end is rotatably connected to the first connecting rod 5 , and a second motor 27 is fixedly connected to the left end of the first threaded rod 25 , and the second motor 27 is fixedly connected to the first connecting rod 5 .

[0064] The second pushing group includes a second threaded rod 26, the second threaded rod 26 is threadedly connected to the push plate 9, the right end of the second threaded rod 26 is rotatably connected to the second connecting rod 8, the left end of the second threaded rod 26 passes through the lifting plate 3 and extends to the left side of the lifting plate 3, the left end of the second threaded rod 26 is fixedly connected to the third motor 28, and the third motor 28 is fixedly connected to the lifting plate 3.

[0065] like Fig.10 As shown:

[0066] The first threaded rod 25 is driven to rotate by the second motor 27, thereby moving the connecting member 6 and the contact plate 7, and the second threaded rod 26 is driven to rotate by the third motor 28 to complete the left and right movement of the push plate 9.

[0067] A plurality of rollers are rotatably connected to the arc-shaped inner side wall of the contact plate 7 .

[0068] The roller is a conventional arrangement in the prior art for reducing friction, which is not specifically shown in the figure. The roller is arranged on the inner wall of the contact plate 7 to reduce the friction between the inner wall of the contact plate 7 and the pipeline.

[0069] The four corners of the bottom surface of the support platform 1 are fixedly connected with outrigger cylinders 29 .

[0070] like Figure 3 As shown: when the pipeline is lifted, the supporting platform 1 is supported by the extended outrigger oil cylinder 29, so that the universal AVG wheel 2 is in a suspended state, thereby ensuring the overall stability of the entire device during the process of lifting the pipeline.

Claims

1. A pipe lifting device for a multi-layer pipe gallery for installing pipes, comprising a support platform (1) and four universal AVG wheels (2) arranged on the support platform (1), characterized in that: The support platform (1) is provided with two lifting groups; the two lifting groups are arranged in a mirror image with respect to the middle of the top surface of the support platform (1); The lifting group comprises a lifting plate (3), the lifting plate (3) being slidably connected to the supporting platform (1), a driving group being arranged below the lifting plate (3), the driving group being used to drive the lifting plate (3) to rise and fall, a notch (4) being provided on the lifting plate (3), a first connecting rod (5) being fixedly connected to the lifting plate (3), a connecting member (6) being slidably connected to the first connecting rod (5), a contact plate (7) being horizontally slidably mounted on the connecting member (6), the contact plate (7) being arc-shaped, the lifting plate (3) being away from the first connecting rod (5) A second connecting rod (8) is fixedly connected to one side of the lifting plate (3), a push plate (9) is slidably connected to the second connecting rod (8), a translation group is provided on the lifting plate (3), the translation group is used to drive the connecting member (6) and the push plate (9) to translate along the first connecting rod (5) and the second connecting rod (8) respectively, and two contact wheels (10) are rotatably connected to the lifting plate (3), and the two contact wheels (10) are used to adjust the position of the pipeline to be installed in the front and rear directions; the rotation axes of the contact wheels (10) are connected to first motors (11) for driving them to rotate; The driving group comprises a top plate (12) and a slide groove (14); the top plate (12) is slidably connected to the lifting plate (3); a hydraulic rod (13) is fixedly connected between the bottom end of the top plate (12) and the supporting platform (1); the slide groove (14) is provided on the connecting member (6); and the contact plate (7) is slidably connected to the slide groove (14); A first clamping block (15) is fixedly connected to the right side of the top surface of the top plate (12); a second clamping block (16) is arranged on the left side of the first clamping block (15); the second clamping block (16) is slidably connected to the lifting plate (3); a trigger group is arranged on one side of the first clamping block (15); the trigger group is used to drive the second clamping block (16) to move upward; The trigger group comprises a driving frame (17), the driving frame (17) is U-shaped, a roller (18) is rotatably connected to the driving frame (17), a cross bar (19) is rotatably connected to the driving frame (17), a torsion spring (20) is sleeved on the rotating shaft of the driving frame (17), the cross bar (19) is slidably connected to the lifting plate (3), a spring (21) is fixedly connected between one end of the cross bar (19) and the lifting plate (3), the other end of the cross bar (19) is rotatably connected to a support rod (22), and the top end of the support rod (22) is rotatably connected to the bottom of the second clamping block (16); A locking group is provided on one side of the cross bar (19), and the locking group is used to prevent the pipeline from retreating when the pipeline moves.

2. According to claim 1, a pipeline lifting device for a multi-layer pipeline installation, characterized in that: The locking group comprises a one-way gear (23), the one-way gear (23) being rotatably connected to the side wall of the crossbar (19), a rack rod (24) being meshed below the one-way gear (23), and the rack rod (24) being fixedly connected to the top plate (12).

3. According to claim 1, a pipeline lifting device for a multi-layer pipeline installation, characterized in that: The translation group includes a first pushing group and a second pushing group; The first pushing group comprises a first threaded rod (25), the first threaded rod (25) being rotatably connected to the connecting member (6) and the right end of which is rotatably connected to the first connecting rod (5), the left end of the first threaded rod (25) being fixedly connected to a second motor (27), and the second motor (27) being fixedly connected to the first connecting rod (5).

4. The integrated pipe gallery pipe lifting device for multi-layer pipe installation according to claim 3 is characterized in that: The second pushing group includes a second threaded rod (26), the second threaded rod (26) is threadedly connected to the push plate (9), the right end of the second threaded rod (26) is rotatably connected to the second connecting rod (8), the left end of the second threaded rod (26) passes through the lifting plate (3) and extends to the left side of the lifting plate (3), the left end of the second threaded rod (26) is fixedly connected to the third motor (28), and the third motor (28) is fixedly connected to the lifting plate (3).

5. The integrated pipe gallery pipe lifting device for multi-layer pipe installation according to claim 1 is characterized in that: The four corners of the bottom surface of the support platform (1) are all fixedly connected with outrigger oil cylinders (29).

Images