A water supply pipeline dismounting device and method

Abstract

This invention provides a device and method for dismantling and installing water transmission and distribution pipelines. The device includes a lifting mechanism, a pushing-pull mechanism, and a power source, which provides power to the lifting and pushing-pull mechanisms. The pushing-pull mechanism includes two clamping assemblies and two linear pushing-pull assemblies. The two linear pushing-pull assemblies are arranged parallel to each other, with their first ends engaged with one clamping assembly and their second ends engaged with the other clamping assembly, allowing the two clamping assemblies to move closer or further apart. This invention uses the lifting mechanism to adjust the height and horizontal position of the pipeline to be installed, and the linear pushing-pull assemblies to push and pull the pipeline, thus achieving the installation or removal of the pipeline. The entire dismantling and installation process does not require large machinery, the equipment is small in size, and can be used in confined spaces such as tunnels or culverts, facilitating pipeline dismantling and installation in narrow spaces.

Description

Technical Field

[0001] This invention relates to the field of pipeline dismantling and assembly technology, specifically to a dismantling and assembly device and method for water transmission and distribution pipelines. Background Technology

[0002] Water supply and drainage pipelines are crucial for urban development. During the initial stages of urban construction, water supply and drainage pipelines need to be planned and constructed according to the design. In spacious areas, cranes or excavators are generally used for hoisting and installation, making installation relatively easy. However, installation in confined spaces becomes problematic, especially in tunnels or culverts where pipeline connections are necessary. Because large hoisting machinery cannot access these areas, manual labor using crowbars, ropes, and hammers is required, resulting in low efficiency and difficulty in achieving proper pipe connections. Furthermore, using crowbars and hammers during connection can damage the protective layer on the pipe surface, exposing the internal metal layer. This leads to rusting, accelerated aging, and a shortened lifespan for the pipeline.

[0003] In summary, there is an urgent need for a water transmission and distribution pipeline disassembly and assembly device and method to solve or at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a water supply and distribution pipeline disassembly and assembly device, which aims to solve the technical problem that existing pipeline disassembly and assembly equipment cannot be used in confined spaces. The specific technical solution is as follows:

[0005] A water supply and distribution pipeline disassembly and assembly device includes a lifting mechanism, a push-pull mechanism, and a power source. The power source provides power to the lifting mechanism and the push-pull mechanism. The push-pull mechanism includes two clamping assemblies and two linear push-pull assemblies. The two linear push-pull assemblies are arranged parallel to each other, and the first end of the two linear push-pull assemblies is engaged with one of the clamping assemblies, and the second end of the two linear push-pull assemblies is engaged with the other clamping assemblies, so as to drive the two clamping assemblies to move closer or further apart.

[0006] Preferably, the lifting mechanism includes a U-shaped base, a slider, a support wheel assembly, and a drive assembly. A first groove is provided on the top of the bottom wall of the U-shaped base, and the slider is slidably connected in the first groove. The support wheel assembly is rotatably arranged on the slider. The drive assembly is installed on the U-shaped base and is used to drive the slider to slide along the first groove. Two sets of sliders, support wheel assemblies, and drive assemblies are arranged, and the two drive assemblies drive the two sets of sliders and support wheel assemblies to move closer to or further away from each other.

[0007] Preferably, the U-shaped base is divided into two parts along the middle section, and the two parts are detachably connected by fasteners, with the dividing surface intersecting the first groove.

[0008] Preferably, the support wheel assembly includes rollers that are horizontally rotatably connected to the slider.

[0009] Preferably, the support wheel assembly includes a wheel frame and at least two rollers, with the middle of the wheel frame hinged to the slider; the two rollers are horizontally rotatably connected to both ends of the wheel frame.

[0010] Preferably, the roller includes a wheel body, a wheel axle, and a protective layer. The wheel body and the wheel axle are coaxially rotatably connected. The wheel axle is hinged to the wheel frame, and the protective layer is arranged around the wheel surface of the wheel body.

[0011] Preferably, the roller includes a wheel body, a wheel axle, and a protective layer. The wheel body and the wheel axle are coaxially and fixedly connected. The wheel axle is hinged to the wheel frame. The protective layer is arranged around the wheel surface of the wheel body. One end of the wheel axle is provided with a wrench engagement part, which is arranged on the side away from the slider.

[0012] Preferably, the driving component is either a hydraulic cylinder or an electric push rod, with the fixed end of the hydraulic cylinder or electric push rod fixedly connected to the U-shaped base, and the driving end of the hydraulic cylinder or electric push rod fixedly connected to the slider.

[0013] Preferably, the lifting mechanism further includes a pad, and a second slide groove is provided on the U-shaped base. The second slide groove and the first slide groove are arranged in a spatially intersecting manner. Two second slide grooves are arranged, and the two second slide grooves are arranged in parallel. The second slide groove is arranged at the bottom of the U-shaped base, and two pads are arranged. The U-shaped base is slidably arranged on the two pads through the second slide groove.

[0014] On the other hand, this application also provides a method for disassembling and assembling water transmission and distribution pipelines, including the use of the aforementioned water transmission and distribution pipeline disassembly and assembly device; it includes the following steps:

[0015] Two lifting mechanisms are positioned at both ends of the pipe to be installed. The lifting mechanisms are used to raise the pipe and adjust its height and horizontal position to align it with the already installed pipe. One clamp assembly is locked to one end of the pipe to be installed, and the other clamp assembly is locked to one end of the already installed pipe. Both ends of the linear push-pull assembly are then locked to the clamp assemblies. The linear push-pull assembly is then driven to retract, moving the pipe to be installed toward the already installed pipe until it is inserted into the already installed pipe. The lifting and push-pull mechanisms are then removed.

[0016] The application of the technical solution of the present invention has the following beneficial effects:

[0017] The height and horizontal position of the pipe to be installed are adjusted by a lifting mechanism. Two linear push-pull components push and pull the clamp components on the pipe from both sides to insert or pull the pipe into or out of the existing pipe. This allows for the installation or removal of the pipe. The entire process does not require large machinery, and the equipment is small in size, making it suitable for use in confined spaces such as tunnels or culverts. Furthermore, the installation process does not damage the pipe. During installation, the retraction of the linear push-pull components pulls the pipe towards the existing pipe for insertion. This quick and convenient installation reduces installation difficulty, time, and costs.

[0018] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 This is a diagram illustrating the usage state of a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention during pipeline disassembly and assembly.

[0021] Figure 2 This is an enlarged view of a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention, applied during pipeline disassembly and assembly.

[0022] Figure 3 This is a schematic diagram of the overall structure of the power source in a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the lifting mechanism in a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention;

[0024] Figure 5 This is an exploded view of the lifting mechanism disassembled from the middle in a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention;

[0025] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0026] Figure 7 yes Figure 5 Enlarged view at point B;

[0027] Figure 8 This is a schematic diagram of the overall structure of the push-pull mechanism in a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention;

[0028] Figure 9 This is a schematic diagram of the overall structure of the clamp assembly in a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention;

[0029] Figure 10 This is an enlarged view of the latch in a water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention;

[0030] Figure 11 This is a diagram showing the usage state of the push-pull mechanism in the water supply and distribution pipeline disassembly and assembly device according to Embodiment 1 of the present invention when it is applied to pipeline disassembly and assembly.

[0031] Among them, 1. Push-pull mechanism; 11. Clamp assembly; 111. Clamp belt; 1111. Support part; 1112. Reinforcing rib; 1113. Connecting joint; 1114. Hinge; 112. Lock; 1121. Fixed base; 1122. Hook; 1123. Lock tongue; 1124. Lock handle; 1125. Locking pin; 113. Snap-fit ​​post; 1131. Snap-fit ​​surface; 1132. Stop cover; 114. Flexible protective pad; 12. Linear push-pull assembly; 2. Lifting mechanism; 21. U-shaped base; 211. First slide groove; 212. Fastener; 213. Second slide rail; 214, base arm; 2141, slot; 2142, insert block; 215, extension arm; 22, slider; 23, support wheel assembly; 231, roller; 2311, wheel body; 2312, axle; 2313, protective layer; 2314, wrench locking part; 232, wheel frame; 24, drive assembly; 25, pad; 3, power source; 31, motor; 32, hydraulic oil tank; 33, hydraulic pump; 34, hydraulic valve; 35, oil pipe; 36, power supply; 37, moving frame; 371, caster wheel; 4, pipe to be installed; 5, installed pipe. Detailed Implementation

[0032] To facilitate understanding of the present invention, a more comprehensive description is provided below, along with preferred embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] Example 1:

[0035] See Figures 1-11 This embodiment provides a water supply and distribution pipeline disassembly and assembly device, including a lifting mechanism 2, a push-pull mechanism 1, and a power source 3. The power source 3 is used to provide power to the lifting mechanism 2 and the push-pull mechanism 1. The push-pull mechanism 1 includes two clamping assemblies 11 and two linear push-pull assemblies 12. The two clamping assemblies 11 are respectively installed on the outer periphery of the installed pipeline 5 and the outer periphery of the pipeline 4 to be installed. The two linear push-pull assemblies 12 are arranged parallel to each other, and the first ends of the two linear push-pull assemblies 12 are respectively engaged on both sides of one clamping assembly 11, and the second ends of the two linear push-pull assemblies 12 are respectively engaged on both sides of the other clamping assembly 11, so that the two clamping assemblies 11 are driven to move closer or further away from each other by the two linear push-pull assemblies 12, thereby realizing the movement of the pipeline 4 to be installed toward the installed pipeline 5 and insertion into the installed pipeline 5.

[0036] It should be noted that in plug-in type pipes, one end has a smaller diameter (smaller diameter end) and the other end has a larger diameter (larger diameter end). The smaller diameter end of the pipe to be installed (4) can be inserted into the larger diameter end of the installed pipe (5). Before installation, the pipe to be installed (4) is placed on the ground with its smaller diameter end in close contact with the ground. During installation, the smaller diameter end of the pipe to be installed (4) needs to be lifted and moved towards the installed pipe (5) until it is inserted into the installed pipe (5). Because the pipe to be installed (4) is in direct contact with the ground when it is placed on the ground, it is not possible to place the lifting mechanism (2) below it. Therefore, the conventional method is to use a pry bar to pry the smaller diameter end of the pipe to be installed (4) upwards. This allows for the insertion of a rope to pull the pipe to be installed (4) and move it until it is inserted into the installed pipe (5). This installation method is problematic because firstly, the pry bar can easily damage the wall of the pipe to be installed (4), and secondly, it cannot guarantee that the height of the pipe to be installed (4) and the installed pipe (5) are consistent. Therefore, during the installation process, it is difficult to align the small diameter end of the pipe to be installed (4) with the large diameter end of the installed pipe (5), making installation difficult, time-consuming, and inconvenient to disassemble and assemble.

[0037] Through the above structural design, when the pipe 4 to be installed needs to be installed, two lifting mechanisms 2 are used. The two lifting mechanisms 2 are arranged at both ends of the pipe 4 to be installed. The power source 3 provides power to the two lifting mechanisms 2. The two lifting mechanisms 2 lift the pipe 4 to be installed upwards until the height of the axis of the pipe 4 to be installed is consistent with the height of the axis of the installed pipe 5. The clamp assembly 11 is installed on the large-diameter end of the installed pipe 5 and on the small-diameter end of the pipe 4 to be installed. Because the small-diameter end of the pipe 4 to be installed is lifted, the small-diameter end of the pipe 4 to be installed is in an airborne state, which makes it convenient for the clamp assembly 11 to pass under the pipe 4 to be installed and clamp it. The pipe 4 is installed on the smaller diameter end of the pipe 5. Then, the linear push-pull assembly 12 of the push-pull mechanism 1 is installed on the two clamping assemblies 11. Specifically, one linear push-pull assembly 12 is positioned on one side of the installed pipe 5, with its first end engaged with the clamping assembly 11 at the larger diameter end of the installed pipe 5, and its second end engaged with the clamping assembly 11 at the smaller diameter end of the pipe 4 to be installed. The other linear push-pull assembly 12 is positioned on the other side of the installed pipe 5, with its first end engaged with the clamping assembly 11 at the larger diameter end of the installed pipe 5, and its second end engaged with the clamping assembly 11 at the smaller diameter end of the pipe 4 to be installed. By pushing and pulling the clamping assemblies 11 on the pipe 4 to be installed from both sides using the two linear push-pull assemblies 12, the pipe 4 to be installed can be inserted into or removed from the installed pipe 5, thus achieving the installation or removal of the pipe 4 to be installed. The above-described structure eliminates the need for large machinery, and the small size of the equipment allows it to be used in confined spaces such as tunnels or culverts, enabling the installation and disassembly of the pipe 4 to be installed within such confined spaces. Furthermore, the installation and disassembly of the pipe 4 will not cause damage to it. During installation, the retraction of the linear push-pull assembly 12 can pull the pipe 4 to be installed toward the installed pipe 5, allowing the smaller diameter end of the pipe 4 to be installed to be inserted into the larger diameter end of the installed pipe 5. This quick and convenient installation reduces installation difficulty, saves installation time, and lowers installation costs.

[0038] The linear push-pull assembly 12 is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. In this embodiment, the linear push-pull assembly 12 is a hydraulic cylinder. The cylinder body end and the piston rod end of the hydraulic cylinder are provided with slots, which are used to engage with the two clamp assemblies 11 respectively.

[0039] Specifically, the power source 3 includes a motor 31, a hydraulic oil tank 32, a hydraulic pump 33, a hydraulic valve 34, an oil pipe 35, a power supply 36, and a moving frame 37. The power supply 36, motor 31, hydraulic pump 33, hydraulic valve 34, and hydraulic oil tank 32 are all mounted on the moving frame 37. The hydraulic pump 33 is installed inside the hydraulic oil tank 32. The output end of the motor 31 is connected to the input end of the hydraulic pump 33 via a coupling. The oil pipe 35 connects the hydraulic oil pump to the lifting mechanism 2 and the push-pull mechanism 1. The power supply 36 supplies power to the motor 31, causing the motor 31 to rotate. The motor 31 drives the hydraulic pump 33 to rotate, thereby pumping out hydraulic oil through the oil pipe 35. The hydraulic oil flows through the oil pipe 35 to the lifting mechanism 2 and the push-pull mechanism 1, thereby driving the lifting mechanism 2 to push the pipe 4 to be installed to rise and fall, and driving the push-pull mechanism 1 to pull the clamp assembly 11 and the pipe 4 to be installed connected to the clamp assembly 11 to move. The bottom of the mobile frame 37 is equipped with casters 371, which can be easily moved by pulling the mobile frame 37. When moving, the push-pull mechanism 1 and the lifting mechanism 2 can be placed on the mobile frame 37 for easy movement and transportation.

[0040] It should be noted that the power source 36 can be a battery, a power cable, or a combination of both. In this embodiment, it is a combination of a battery and a power cable. In locations where space is limited and it is inconvenient to pull the cable, the motor 31 can be powered by the battery. In locations where pulling the cable is convenient, the motor 31 can be powered by the cable or the battery. Simultaneously, the battery can be charged via the power cable, facilitating use. The hydraulic valve 34 can be a manual valve or an electric valve. In this embodiment, a manual valve is used. The hydraulic valve 34 is installed between the hydraulic pump 33 and the oil pipe 35. By manually driving the valve handle, the valve core position is changed, altering the flow direction of the hydraulic oil, thereby achieving the lifting mechanism 2's lifting action and the pushing / pull mechanism 1's pushing / pull action. An oil pressure gauge is installed on the outlet pipe of the hydraulic pump 33. The oil pressure can be easily observed through the oil pressure gauge, allowing for the determination of the power source 3's operating status. If the pressure is too high, the power source 3 needs to be inspected or repaired promptly.

[0041] Specifically, the lifting mechanism 2 includes a U-shaped base 21, a slider 22, a support wheel assembly 23, and a drive assembly 24. A first groove 211 is provided on the top of the bottom wall of the U-shaped base 21. The slider 22 is slidably connected in the first groove 211. The first groove 211 is a T-shaped groove or a dovetail groove to prevent the slider 22 from disengaging from the top of the first groove 211. The support wheel assembly 23 is rotatably arranged on the slider 22 via a rotating shaft, and the support wheel assembly 23 is cantilevered in the direction away from the slider 22. The drive assembly 24 is installed on the U-shaped base 21 and is used to drive the slider 22 to slide along the first groove 211. Two sets of sliders 22, support wheel assemblies 23, and drive assemblies 24 are arranged, and the two drive assemblies 24 drive the two sets of sliders 22 and support wheel assemblies 23 to move closer to or further away from each other. Specifically, the U-shaped base 21 includes a base arm 214 and two extension arms 215 extending along one side of the base arm 214. A first groove 211 is disposed above the base arm 214 and extends along the length of the base arm 214. The arrangement of the two extension arms 215 prevents the support wheel assembly 23 from overturning when supporting the pipe 4 to be installed. A reinforcing strut is provided between the base arm 214 and the extension arms 215 to improve the connection strength between the base arm 214 and the extension arms 215. The slider 22 extends along the direction of the first groove 211 to improve the resistance of the slider 22 to the torque exerted by the support wheel assembly 23 when supporting the pipe 4 to be installed.

[0042] Specifically, the drive component 24 is either a hydraulic cylinder or an electric push rod. In this embodiment, a hydraulic cylinder is used. The fixed end of the hydraulic cylinder is fixedly connected to the U-shaped base 21, and the drive end of the hydraulic cylinder is fixedly connected to the slider 22. By extending or retracting the hydraulic cylinder, the slider 22 is driven to slide back and forth in the first slide groove 211, causing the two sets of sliders 22 to move closer or further away from each other, thereby causing the two sets of support wheel sets 23 to move closer or further away from each other.

[0043] It can be understood that when lifting the pipe 4 to be installed, the lifting mechanism 2 is placed at one end of the pipe 4, and the two extension arms 215 of the U-shaped base 21 and the support wheel set 23 extend to the bottom of the pipe 4. The two sliders 22 are driven to move closer to each other by the two drive components 24. At this time, the two sets of support wheel sets 23 move closer to each other. During the process of moving closer to each other, the two sets of support wheel sets 23 abut against the outer wall of the pipe 4 to be installed. As the two sets of support wheel sets 23 move closer, the pipe 4 to be installed is supported by the two sets of support wheel sets 23. As the support wheel set 23 continues to move, the height of the pipe to be installed 4 slowly rises until the axial height of the pipe to be installed 4 is consistent with the axial height of the installed pipe 5, thereby adjusting the height of the pipe to be installed 4. When the axial axis of the pipe to be installed 4 is not coaxial with the axial axis of the installed pipe 5, the two sets of drive components 24 simultaneously drive the two sets of sliders 22 and the support wheel set 23 to move along the direction of the first slide groove 211, thereby adjusting the horizontal position of the pipe to be installed 4 until the pipe to be installed 4 is coaxial with the installed pipe 5, thereby aligning the pipe to be installed 4 with the installed pipe 5.

[0044] During the research, it was found that for some pipe support frames that are relatively short, meaning that the space left below the pipe after installation is small, the existing installation equipment cannot be removed from one side of the pipe. Specifically, the height of the U-shaped base 21, slider 22, and support wheel assembly 23 is higher than the space left below the pipe, preventing the slider 22 and support wheel assembly 23 from being removed from one side. Based on this, further improvements were made: the U-shaped base 21 is divided into two parts along its middle section, and the two parts are detachably connected by fasteners 212. The dividing surface intersects with the first sliding groove 211. Specifically, the bottom arm 214 of the U-shaped base 21 is cut off along its middle section, and the dividing surface is perpendicular to the length direction of the first sliding groove 211. During operation, the two bottom arms 214 are fastened together by fasteners 212. After the pipe 4 to be installed is installed, the fasteners 212 are loosened. At this time, the two bottom arms 214 separate from the middle, and the sliders 22, support wheel sets 23 and drive components installed on the two bottom arms 214 can be removed from both sides of the pipe. This allows the device to be easily disassembled even when there is little space left under the pipe after installation, thus broadening the application range of the device.

[0045] Specifically, a slot 2141 is formed on the first part of the U-shaped base 21 on one side of the split surface, and a plug 2142 is formed on the second part of the U-shaped base 21 on the other side of the split surface. During assembly, the plug 2142 on the second part of the U-shaped base 21 is inserted into the slot 2141 on the first part of the U-shaped base 21 for fixation in a direction perpendicular to the first slide groove 211. A first flange extends laterally on the first part of the U-shaped base 21, and a first through hole parallel to the direction of the first slide groove 211 is provided on the first flange. A second flange also extends laterally on the second part of the U-shaped base 21, and a second through hole parallel to the direction of the first slide groove 211 is provided on the second flange. When the plug 2142 is inserted into the slot 2141, the first through hole and the second through hole are aligned, and a fastener 212 passes through the first through hole and the second through hole and is locked in place to limit the position of the plug 2142 and the slot 2141. The fastener 212 is either a bolt or a pin. Both the first flange and the second flange are arranged on the side away from the extension arm 215 to avoid the pipe 4 to be installed, so that the support wheel assembly 23 can provide good support for the pipe 4 to be installed.

[0046] In the initial stage of the research, the support wheel assembly 23 used a single roller 231, that is, one roller 231 was installed on each slider 22. The two rollers 231 on the two sliders 22 supported the small-diameter ends of the pipe to be installed from both sides of the pipe. The weight of the pipe pressed on the two rollers 231. The contact between the pipe and the rollers 231 was a line contact, with high pressure, which could easily damage the outer surface protective layer of the rollers 231. Based on this, further optimizations were made, as follows:

[0047] The support wheel assembly 23 includes a wheel frame 232 and at least two rollers 231. The middle part of the wheel frame 232 is hinged to the slider 22; the two rollers 231 are horizontally rotatably connected to both ends of the wheel frame 232. It can be understood that through this design, two rollers 231 are installed on each slider 22. When supporting the pipe 4 to be installed, the four rollers 231 on the two sets of sliders 22 support the small-diameter end of the pipe 4, increasing the contact area with the pipe 4, reducing pressure, and preventing the rollers 231 from damaging the surface protective layer 2313 of the pipe 4. On the other hand, two rollers 231 are rotatably connected to both ends of the wheel frame 232, and the middle of the wheel frame 232 is hinged to the slider 22. When the slider 22 moves toward the pipe 4 to be installed, one of the rollers 231 will first contact the outer wall of the pipe 4. As the slider 22 continues to move, the roller 231 in contact with the pipe 4 drives the wheel frame 232 to rotate relative to the slider 22, realizing adaptive adjustment of the position of the two rollers 231, so that the two rollers 231 can contact the outer wall of the pipe 4 to be installed simultaneously. By having four rollers 231 simultaneously support the small-diameter end of the pipe 4 to be installed, not only is the pressure on the pipe 4 to be installed reduced, but the stability of the support for the pipe 4 to be installed is also improved.

[0048] Preferably, the roller 231 includes a wheel body 2311, a wheel axle 2312, and a protective layer 2313. The wheel body 2311 and the wheel axle 2312 are coaxially and fixedly connected. The wheel axle 2312 is hinged to the wheel frame 232. The protective layer 2313 is arranged around the wheel surface of the wheel body 2311. One end of the wheel axle 2312 is provided with a wrench locking part 2314, which is arranged on the side away from the slider 22.

[0049] It is known that the wheel body 2311 is coaxially and fixedly connected to the wheel axle 2312, meaning that when the wheel axle 2312 rotates, the wheel body 2311 is driven to rotate. The wheel body 2311 is rotatably connected to the wheel frame 232 via the wheel axle 2312. The protective layer 2313 is made of a flexible material, specifically one of rubber, silicone, polyurethane, polytetrafluoroethylene, or felt; in this embodiment, polyurethane is used. During support, the protective layer 2313 undergoes elastic deformation, thereby increasing the contact area between the protective layer 2313 and the pipe 4 to be installed, reducing the pressure between the protective layer 2313 and the pipe 4 during support, preventing pressure damage to the outer wall of the pipe 4, and thus protecting the outer wall of the pipe 4. In addition, by setting a wrench locking part 2314 at one end of the axle 2312, when it is necessary to rotate the pipe 4 to be installed, a wrench is used to drive the wrench locking part 2314 to rotate, which in turn drives the wheel 2311 to rotate. When the roller 231 rotates, it drives the pipe 4 to be installed supported on the roller 231 to rotate, thereby realizing the adjustment of the circumferential position of the pipe, and thus realizing the adjustment of the locking position of the clamp assembly 11 and the linear push-pull assembly 12, so as to facilitate the connection between the linear push-pull assembly 12 and the clamp assembly 11.

[0050] Furthermore, the lifting mechanism 2 also includes a pad 25, and a second slide groove 213 is provided on the U-shaped base 21. The second slide groove 213 and the first slide groove 211 are spatially intersecting, with two second slide grooves 213 arranged in parallel. The second slide groove 213 is located at the bottom of the U-shaped base 21, and two pads 25 are provided. The U-shaped base 21 slides on the two pads 25 via the second slide groove 213. Specifically, the second slide groove 213 is located at the bottom of the extension arm 215 of the U-shaped base 21. It can be understood that the pads 25 are supported on the ground, and the U-shaped base 21 slides on the two pads 25. When the linear push-pull assembly 12 pulls the pipe 4 to be installed, the U-shaped base 21, the slider 22, and the support wheel assembly 23 slide along the length direction of the second slide groove 213 with the pipe 4 to be installed, so that the small diameter end of the pipe 4 to be installed can be smoothly inserted into the large diameter end of the installed pipe 5. It also facilitates the reverse movement and removal of the installed pipe. The above structural design allows the U-shaped base 21 to slide back and forth along the length of the second slide groove 213, facilitating the installation and disassembly of the pipe.

[0051] In some embodiments, during the sliding process of the U-shaped base 21 with the pipe 4 to be installed, the U-shaped base 21 and the pipe 4 to be installed can be fixed by binding, so that the U-shaped base 21 moves together with the pipe 4 during the movement, preventing the U-shaped base 21 from scratching the outer surface of the pipe 4. Secondly, a sliding bearing is provided between the second sliding groove 213 of the U-shaped base 21 and the pad 25 to reduce the friction between the U-shaped base 21 and the pad 25, so that the U-shaped base 21 can move smoothly with the pipe 4 to be installed.

[0052] Furthermore, the lifting mechanism 2 also includes a limiting screw. The U-shaped base 21 has an elongated groove, specifically located on the side of the bottom arm 214. The elongated groove extends along the length of the second sliding groove 213. The limiting screw passes through the elongated groove and is fixedly connected to the pad 25. The limiting screw slides within the elongated groove, limiting the U-shaped base 21 and preventing it from separating from the pad 25.

[0053] The clamp assembly 11 includes a clamp 111, a locking buckle 112, and locking posts 113. The two ends of the locking buckle 112 are fixedly connected to the two ends of the clamp 111, and the locking buckle 112 is used to lock the two ends of the clamp 111. The locking buckle 112 can be opened. When it is necessary to tighten the clamp 111 to the outer wall of the pipe, the locking buckle 112 is opened, the clamp 111 is wrapped around the outer circumference of the pipe, and the locking buckle 112 is locked to tighten the clamp 111 to the outer surface of the pipe. Two locking posts 113 are arranged. The two locking posts 113 are fixedly connected to the outside of the clamp 111. When the clamp 111 is in the locked state and is circular, the two locking posts 113 are located on both sides of the radial direction of the circular clamp 111.

[0054] Specifically, in use, two sets of clamp assemblies 11 are required. In one set of clamp assemblies 11, the clamp straps 111 are tightened to the outer circumference of the pipe to be installed via the locking buckle 112. In the other set of clamp assemblies 11, the clamp straps 111 are tightened to the outer circumference of the already installed pipe via the locking buckle 112. When the two clamp straps 111 are tightened, the locking posts 113 on both sides of the clamp straps 111 are in a horizontal position, and the locking posts 113 on the two sets of clamp straps 111 are in corresponding positions. Then, two hydraulic cylinders with locking interfaces at both ends are respectively locked onto the four locking posts 113 on both sides of the two sets of clamp straps 111. When the hydraulic cylinders retract, they drive the two sets of clamp assemblies 11 to move closer to each other. Since the already installed pipe is fixed, the retraction of the hydraulic cylinders actually pulls the pipe to be installed toward the already installed pipe, thereby inserting the pipe to be installed into the already installed pipe, thus realizing the installation of the pipe to be installed 4.

[0055] With the above structural design, during pipeline installation, two sets of clamp assemblies 11 are respectively clamped onto the pipeline to be installed 4 and the already installed pipeline 5. Then, a hydraulic cylinder is used to engage with the locking pin 113 on the clamp 111. When the hydraulic cylinder retracts, it moves the pipeline to be installed 4 and inserts it into the already installed pipeline 5, thus completing the installation of the pipeline to be installed 4. The entire installation process is quick and does not require the assistance of external cranes or excavators. It enables construction in confined spaces, improving construction efficiency, reducing construction costs, and enhancing economic efficiency.

[0056] It should also be noted that the two sets of clamp assemblies 11 can also be pulled by a cylinder or an electric telescopic rod. The two sets of clamp assemblies 11 can also be moved closer to each other by the cylinder or the electric telescopic rod, so as to realize the installation of the pipeline in a narrow space.

[0057] Preferably, the hoop 111 is further provided with a support portion 1111. The support portion 1111 extends laterally along the hoop 111. Specifically, when the hoop 111 is formed into a ring, the extension direction of the support portion 1111 is parallel to the axial direction of the ring. Two support portions 1111 are provided, and the two support portions 1111 are arranged corresponding to two locking posts 113. The support portions 1111 are located laterally to the locking posts 113, and the two support portions 1111 are located on the same side of the hoop 111.

[0058] It should be noted that when the hydraulic cylinder retracts, it pulls the locking pin 113 to move. At this time, the locking pin 113 is subjected to torque, which is transmitted to the clamp 111, causing the clamp 111 to twist and deform. This twisting and deformation of the clamp 111 is detrimental to its long-term use. By providing a support part 1111 on the clamp 111, when the hydraulic cylinder retracts, the support part 1111 provides a supporting force. The torque generated by the supporting force acts on the clamp 111, and its direction is opposite to the torque applied to the locking pin 113 by the hydraulic cylinder. Thus, the two forces cancel each other out, preventing the clamp 111 from twisting during use and improving its service life.

[0059] Specifically, when installing the clamp 111, the support portion 1111 on the clamp 111 needs to be placed on the side closer to the hydraulic cylinder. It should also be noted that multiple support portions 1111 are provided; that is, support portions 1111 are provided on both sides of the clamp 111 on the locking post 113. This ensures that regardless of whether the installation is in the forward or reverse direction, one side of the support portion 1111 will always provide support force, thereby providing torque to counteract the torque generated by the hydraulic cylinder.

[0060] Preferably, the clamp 111 is further provided with a reinforcing rib 1112, the first end of which is fixedly connected to the snap-fit ​​post 113, and the second end of which is fixedly connected to the support part 1111. It can be understood that by providing the reinforcing rib 1112, the connection strength between the snap-fit ​​post 113 and the clamp 111, and between the clamp 111 and the support part 1111, is improved, preventing deformation of the snap-fit ​​post 113 and the support part 1111 during use, and improving the rigidity of the clamp 111, the support part 1111, and the snap-fit ​​post 113. Specifically, the clamp 111, the support part 1111, and the snap-fit ​​post 113 are all made of metal material, and they can be integrally formed or connected and fixed by welding.

[0061] Preferably, the hoop 111 includes a connecting section 1113 and a hinge 1114. The connecting section 1113 has three sections, and the hinge 1114 has two sections. The three connecting sections 1113 are hinged sequentially by the two hinges 1114. Two locking pins 113 are respectively connected to the connecting sections 1113 at the beginning and end. The two ends of the latch 112 are respectively connected to the connecting sections 1113 at the beginning and end.

[0062] It should be noted that when the clamp 111 is a single, continuous strip, it is often circular. To tighten the entire clamp 111 onto the pipe, it needs to be pried open from the locking buckle 112 to easily pass it under the pipe and tighten it. This process is inconvenient. However, by arranging the clamp 111 into three connecting sections 1113, which are sequentially hinged by two hinges 1114, this structural design allows adjacent connecting sections 1113 to rotate around the hinges 1114. Therefore, during each installation, the connecting sections 1113 in the clamp 111 can rotate and unfold around the hinges 1114, facilitating the passage of the clamp 111 under the pipe for installation. This improves installation efficiency and reduces the labor intensity of operators.

[0063] During locking, simply lock the locking buckle 112 to the connecting sections 1113 at the beginning and end to tighten the clamp 111 onto the pipe. It is important to note that the hinge 1114 is located between the two connecting sections 1113, or the hinge 1114 protrudes outwards from the two connecting sections 1113. This arrangement prevents the hinge 1114 from protruding inwards from the clamp 111, as this would cause it to directly abut against the outer wall of the pipe, potentially damaging the pipe's outer surface.

[0064] The connecting joint 1113 is made of steel sheet and has a certain elastic deformation capacity, so that when the clamp 111 tightens the pipe, the connecting joint 1113 undergoes elastic deformation, so that the connecting joint 1113 can better fit the outer surface of the pipe.

[0065] Preferably, the latch 112 includes a fixed base 1121, a hook 1122, a latch tongue 1123, a handle 1124, and a locking pin 1125. The fixed base 1121 is fixedly connected to the connecting section 1113 at the tail end; the handle 1124 is hinged to the fixed base 1121, the locking pin 1125 is hinged to the handle 1124, and the hook 1122 is connected to the locking pin 1125; the latch tongue 1123 is fixedly connected to the connecting section 1113 at the head end, and the end of the hook 1122 away from the locking pin 1125 is detachably fastened to the latch tongue 1123.

[0066] Specifically, the hook 1122 is arranged in a U-shape, with threads on both arms of the U-shape. Through holes are provided at both ends of the locking pin 1125. Both U-shaped arms of the hook 1122 pass through these through holes and are threadedly connected to adjusting nuts. By rotating the adjusting nuts, the length of the hook 1122 extending towards the locking tongue 1123 can be adjusted, thereby adjusting the locking position of the latch 112 so that the latch 112 can fully lock the band 111. During locking, the hook 1122 is first engaged with the locking tongue 1123. Then, the locking handle 1124 is driven to rotate around the hinge point on the fixed base 1121, causing the hook 1122 to rotate and engage with the locking tongue 1123, thus achieving locking. It should be noted that the actual locking is achieved by the locking handle 1124 driving the hook 1122 to rotate, so that the hinge point on the locking handle 1124 and the hook 1122 passes the dead point of the engagement, in order to prevent the locking handle 1124 from rotating in the opposite direction, thereby achieving locking.

[0067] In some other embodiments of this application, the two ends of the hook 1122 are fixedly connected to the locking pin 1125, and locking is achieved by the end of the hook 1122 away from the lock handle 1124 engaging with the lock tongue 1123.

[0068] Preferably, the first end of the snap-fit ​​post 113 is vertically fixed to the outer surface of the clamp 111, and the second end of the snap-fit ​​post 113 is arranged to be cantilevered outward; a snap-fit ​​surface 1131 is provided on the outer surface of the snap-fit ​​post 113.

[0069] The snap-fit ​​surface 1131 consists of two planes. Of course, in some other embodiments, the snap-fit ​​surface 1131 can also be other surfaces that facilitate snap-fit. Snap-fit ​​grooves are provided at both ends of the hydraulic cylinder. When the hydraulic cylinder snaps into the snap-fit ​​post 113, the snap-fit ​​groove on the hydraulic cylinder engages with the snap-fit ​​surface 1131 on the snap-fit ​​post 113. When the hydraulic cylinder rises or retracts, it pushes the snap-fit ​​post 113 to move, thereby pushing the corresponding pipe to move, thus realizing the installation and disassembly of the pipe.

[0070] Preferably, a stop cover 1132 is provided at the second end of the snap-fit ​​post 113. The stop cover 1132 is fixedly connected to the second end of the snap-fit ​​post 113, and a stop step is formed between the stop cover 1132 and the snap-fit ​​surface 1131.

[0071] In this embodiment, the stop cover 1132 and the snap-fit ​​post 113 are integrally formed and arranged. The stop cover 1132 prevents the hydraulic cylinder from slipping off the snap-fit ​​post 113 during operation and causing danger. Of course, in some other embodiments, the stop cover 1132 can also be designed to be detachably connected to the snap-fit ​​post 113. For example, by providing a stud on the stop cover 1132 and a threaded hole on the snap-fit ​​post 113, the stop cover 1132 can be fixedly connected to the snap-fit ​​post 113 by threading the stud into the threaded hole.

[0072] Preferably, the system further includes a flexible protective pad 114, which is fixedly connected to the inner side of the clamp 111. Specifically, the flexible protective pad 114 is divided into three sections, each corresponding to one of the three connecting sections 1113. The flexible layer is bonded to the inner surface of the connecting section 1113 with adhesive. The flexible protective pad 114 contacts the pipe, preventing the connecting section 1113 from damaging the outer surface of the pipe.

[0073] Preferably, the flexible protective pad 114 is made of rubber. Of course, in some other embodiments of this application, it can also be made of flexible materials such as silicone, polyurethane, and felt. Rubber is a soft material. When the clamp 111 tightens the pipe, the soft rubber protects the pipe and prevents the metal clamp 111 from scratching the protective layer on the pipe surface, thus protecting the pipe.

[0074] Example 2:

[0075] The difference between this embodiment and Embodiment 1 is that in this embodiment, the support wheel assembly 23 only includes rollers 231, which are horizontally rotatably connected to the sliders 22. It can be understood that the pipe is supported by the two rollers 231 on the two sliders 22. The structure is relatively simple and easy to maintain.

[0076] The roller 231 includes a wheel body 2311, a wheel axle 2312, and a protective layer 2313. The wheel body 2311 and the wheel axle 2312 are coaxially rotatably connected. The wheel axle 2312 is hinged to a wheel frame 232. The protective layer 2313 is arranged around the wheel surface of the wheel body 2311. It can be understood that when the wheel body 2311 rotates, it mainly rotates relative to the wheel axle 2312, while the wheel axle 2312 remains relatively stationary with respect to the wheel frame 232. Because the contact area between the wheel axle 2312 and the wheel body 2311 is larger than the contact area between the wheel axle 2312 and the wheel frame 232, the lower the contact pressure when the wheel body 2311 rotates relative to the wheel axle 2312, the slower the wear, which is beneficial for improving service life.

[0077] The remaining aspects are basically the same as in Example 1, and will not be repeated here.

[0078] Example 3:

[0079] This embodiment provides a method for disassembling and assembling water supply and distribution pipelines, including the use of the water supply and distribution pipeline disassembly and assembly device in Embodiment 1. The method includes the following steps: two lifting mechanisms are respectively arranged at both ends of the pipeline to be installed; two drive components push two sliders closer together, thereby causing the support wheel assembly to support the surface of the pipeline to be installed; as the drive components continue to push the sliders closer together, the pipeline to be installed moves upward under the squeezing action of the support wheel assembly, and is lifted upwards. The lifting mechanism raises the pipeline to be installed to adjust its height. Simultaneously, the relative positions of the two sliders with respect to the U-shaped base can be adjusted using the two drive components. The horizontal position of the pipe to be installed is adjusted using a lifting mechanism to align it with the position of the already installed pipe. One clamp assembly is locked to one end of the pipe to be installed, and the other to one end of the already installed pipe. Both ends of the linear push-pull assembly are then locked to the clamp assemblies. The linear push-pull assembly is then retracted, causing the pipe to be installed, the U-shaped base supporting it, the slider, and the support wheels to slide on the pad, moving the pipe towards the already installed pipe until it is inserted. The lifting and push-pull mechanisms are then removed, completing the pipe installation. When pipe removal is required, the linear push-pull assembly is moved in the opposite direction, pushing the two clamp assemblies away from each other, allowing one pipe to be pulled out from the other. The equipment is small in size, requiring minimal construction space, allowing for work in confined spaces. The simple assembly and disassembly process improves efficiency and reduces costs.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for disassembling and assembling water transmission and distribution pipelines, characterized in that: It includes a lifting mechanism (2), a push-pull mechanism (1), and a power source (3), wherein the power source (3) is used to provide power to the lifting mechanism (2) and the push-pull mechanism (1); The push-pull mechanism (1) includes two clamping assemblies (11) and two linear push-pull assemblies (12). The two linear push-pull assemblies (12) are arranged parallel to each other, and the first end of the two linear push-pull assemblies (12) is engaged with one of the clamping assemblies (11), and the second end of the two linear push-pull assemblies (12) is engaged with the other clamping assemblies (11), so as to drive the two clamping assemblies (11) to move closer or further apart from each other through the two linear push-pull assemblies (12). The lifting mechanism (2) includes a U-shaped base (21), a slider (22), a support wheel assembly (23), and a drive assembly (24). The U-shaped base (21) has a first groove (211) along the top of the bottom wall of the U-shape, and the slider (22) is slidably connected in the first groove (211). The support wheel assembly (23) is rotatably arranged on the slider (22), and the support wheel assembly (23) is cantilevered in a direction away from the slider (22). The drive assembly (24) is mounted on the U-shaped base (21), and the drive assembly (24) is used to drive the slider (22) to slide along the first groove (211). The U-shaped base (21) includes a base arm (214) and two extension arms (215) extending along one side of the base arm (214). The first slide groove (211) is set above the bottom arm (214) and extends along the length of the bottom arm (214). The arrangement of the two extension arms (215) prevents the support wheel group (23) from overturning when supporting the pipe (4) to be installed. The slider (22), support wheel group (23) and drive assembly (24) are arranged in two sets. The two drive assemblies (24) drive the two sets of slider (22) and support wheel group (23) to move closer or further away from each other. The clamp assembly (11) is installed on the large diameter end of the installed pipe (5). The clamp assembly (11) is installed on the small diameter end of the pipe (4) to be installed. The clamp assembly (11) passes through the bottom of the pipe (4) to be installed and clamps it on the small diameter end of the pipe (4) to be installed. The U-shaped base (21) is divided into two parts along the middle section, and the two parts are detachably connected by fasteners (212). The dividing surface intersects with the first slide groove (211). The lifting mechanism (2) also includes a pad (25). The U-shaped base (21) is provided with a second slide groove (213). The second slide groove (213) is spatially intersected with the first slide groove (211). There are two second slide grooves (213), and the two second slide grooves (213) are arranged in parallel. The second slide groove (213) is arranged at the bottom of the U-shaped base (21). There are two pads (25). The U-shaped base (21) slides on the two pads (25) through the second slide groove (213). This water supply and distribution pipeline dismantling and assembly device is used in tunnels or culverts; The method for dismantling and assembling water distribution pipelines using the aforementioned water distribution pipeline dismantling and assembly device includes the following steps: Before installation, the pipe to be installed (4) is placed on the ground with the small diameter end of the pipe to be installed (4) close to the ground. During installation, the small diameter end of the pipe to be installed (4) needs to be lifted and moved toward the installed pipe (5) until the pipe to be installed (4) is inserted into the installed pipe (5). Two lifting mechanisms (2) are respectively arranged at both ends of the pipe (4) to be installed, so that the two drive components (24) push the two sliders (22) closer to each other, thereby making the support wheel group (23) support the surface of the pipe (4) to be installed. As the drive components (24) continue to push the sliders (22) closer to each other, the pipe (4) to be installed moves upward under the squeezing action of the support wheel group (23). The pipe (4) to be installed is lifted upward, and the lifting mechanism (2) lifts the pipe (4) to be installed, so as to realize the adjustment of the height of the pipe (4) to be installed. At the same time, the two drive components (24) adjust the relative position of the two sliders (22) with respect to the U-shaped base (21), thereby adjusting the horizontal position of the pipe (4) to be installed. The lifting mechanism (2) realizes the installation of the pipe. Adjust the height and horizontal position of the channel (4) so ​​that the position of the pipe to be installed (4) corresponds to the position of the pipe already installed (5); lock one clamp assembly (11) to one end of the pipe to be installed (4) and the other clamp assembly (11) to one end of the pipe already installed (5); lock both ends of the linear push-pull assembly (12) to the clamp assembly (11); drive the linear push-pull assembly (12) to retract, and the pipe to be installed (4), the U-shaped base (21) used to support the pipe to be installed (4), the slider (22) and the support wheel assembly (23) slide on the pad (25) to move the pipe to be installed (4) toward the pipe already installed (5) until the pipe to be installed (4) is inserted into the pipe already installed (5); remove the lifting mechanism (2) and the push-pull mechanism (1) to complete the pipe installation; During operation, the two bottom arms (214) are fastened together by fasteners (212). After the pipe (4) to be installed is installed, the fasteners (212) are loosened. At this time, the two bottom arms (214) are separated from the middle, and the sliders (22), support wheel sets (23) and drive components installed on the two bottom arms (214) are removed from both sides of the pipe.

2. The water transmission and distribution pipeline disassembly and assembly device according to claim 1, characterized in that: The support wheel assembly (23) includes a roller (231) which is horizontally rotatably connected to the slider (22).

3. The water transmission and distribution pipeline disassembly and assembly device according to claim 1, characterized in that: The support wheel assembly (23) includes a wheel frame (232) and at least two rollers (231), with the middle part of the wheel frame (232) hinged to the slider (22); The two rollers (231) are horizontally rotatably connected to both ends of the wheel frame (232).

4. The water transmission and distribution pipeline disassembly and assembly device according to claim 3, characterized in that: The roller (231) includes a wheel body (2311), a wheel axle (2312), and a protective layer (2313). The wheel body (2311) and the wheel axle (2312) are coaxially rotatably connected. The wheel axle (2312) is hinged to the wheel frame (232). The protective layer (2313) is arranged around the wheel surface of the wheel body (2311).

5. The water transmission and distribution pipeline disassembly and assembly device according to claim 3, characterized in that: The roller (231) includes a wheel body (2311), a wheel axle (2312), and a protective layer (2313). The wheel body (2311) and the wheel axle (2312) are coaxially fixedly connected. The wheel axle (2312) is hinged to the wheel frame (232). The protective layer (2313) is arranged around the wheel surface of the wheel body (2311). One end of the axle (2312) is provided with a wrench locking part (2314), which is arranged on the side away from the slider (22).

6. The water transmission and distribution pipeline disassembly and assembly device according to claim 1, characterized in that: The drive assembly (24) is either a hydraulic cylinder or an electric push rod. The fixed end of the hydraulic cylinder or the electric push rod is fixedly connected to the U-shaped base (21), and the drive end of the hydraulic cylinder or the electric push rod is fixedly connected to the slider (22).

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