Composite trolley device for slope steel pipe installation

Abstract

The utility model discloses a composite trolley device for slope steel pipe installation, which comprises a winch, a track, a composite trolley transport frame, a traveling mechanism and a hoisting mechanism, and the composite trolley transport frame, the traveling mechanism and the hoisting mechanism form a composite trolley. The combined trolley has the following advantages: 1, multiple functions are integrated: the combined trolley integrates three functions of transportation, hoisting and installation adjustment, so that equipment replacement and operation conversion in the construction process are reduced, and the construction efficiency is improved; 2, the composite trolley adapts to steep terrains: the composite trolley is provided with a walking mechanism capable of adapting to steep slopes, so that the composite trolley can stably walk on the terrains with high slope ratios, and the safety and the stability in the construction process are ensured; and 3, high efficiency, safety, strong adaptability and simple and reliable structure. The device is mainly used for transportation, hoisting and installation adjustment of the pressure steel pipe, and efficient construction under the complex terrain condition is achieved.

Description

Technical Field

[0001] The utility model relates to a trolley device, in particular to a composite trolley device for installing steel pipes on slopes. Background Art

[0002] Under complex terrain conditions such as steep slopes, traditional steel pipe installation methods have problems such as low efficiency, poor safety, and high costs. In recent years, in response to such problems, some innovative methods and technologies have been proposed and applied in the industry to improve construction efficiency and safety and reduce costs.

[0003] Traditional methods usually rely on manual labor or simple machinery for the handling and installation of steel pipes. This method not only has a large labor intensity but also is prone to safety accidents in harsh environments such as steep slopes, resulting in slow construction progress and high costs.

[0004] Among the patent technologies in recent years, there are some special equipment and methods for installing steel pipes on steep slopes. For example: Patent 1 (Application No.: ZL201610791213.X) proposed a crawler-type cargo lifting and transfer machine. Through the powerful climbing ability of the crawler vehicle, the steel pipes are transported to the designated position, greatly improving the transportation efficiency. However, in actual application, there are still some deficiencies in this steel pipe transportation device. For example, the crawler vehicle has high requirements for the ground and is limited by the climbing slope. It may not be able to ensure stable driving on extremely steep or soft ground. Patent 2 (Application No.: ZL202021366812.5) introduced an assembled steel structure construction operation platform. The steel pipe installation platform is modularly designed according to the actual situation on site, so that the platform can be quickly assembled and disassembled on site to adapt to different terrain conditions. However, when facing extremely steep slopes, the structural stability of this modularly assembled platform is difficult to guarantee.

[0005] Combined with the above, although the existing technologies have improved the efficiency and safety of steel pipe installation on steep slopes to a certain extent, there are still many deficiencies when facing extremely complex and harsh terrain conditions. Therefore, there is an urgent need for a more efficient, safe and adaptable composite trolley device to solve the limitations of the existing technologies. Summary of the Invention

[0006] The purpose of the utility model is to provide a composite trolley device for installing steel pipes on slopes, which has the advantages of high efficiency, safety, strong adaptability, and simple and reliable structure.

[0007] The purpose of the utility model is achieved as follows:

[0008] A composite trolley device for installation on a slope steel pipe is characterized by comprising a winch, a track, a composite trolley transport frame, a walking mechanism and a hoisting mechanism, a pair of parallel tracks are laid on a steep slope, and a winch is provided at the top of the steep slope and above the tracks;

[0009] The composite trolley transport frame consists of two completely identical left and right frames, a top crossbeam, and a trolley lifting lug assembly. Each frame is composed of a front column beam, a rear column beam, an upper connecting rod, a lower connecting rod, an oblique support rod, and a vertical support rod. The front column beam and the rear column beam are completely identical. An upper connecting rod and a lower connecting rod are horizontally fixed between the middle upper part and the middle lower part of the front column beam and the rear column beam that are placed identically in the front and rear. A vertical support rod is fixed between the middle bottom of the upper connecting rod and the middle top of the lower connecting rod that are parallel to each other. A vertical support rod is fixed between the middle bottom of the upper connecting rod, the two sides of the vertical support rod and the inner side wall of the front column beam and the inner side wall of the rear column beam. An "eight"-shaped diagonal brace is fixed between the middle bottom of the lower connecting rod and the inner side wall of the front column beam and the inner side wall of the rear column beam. The connecting rod, the lower connecting rod and the diagonal brace connect the front column beam and the rear column beam into a stable frame. The two frames are placed side by side, and a top crossbeam is fixed between the top ends of the left and right front column beams and between the top ends of the left and right rear column beams. Two front and rear parallel top crossbeams connect the two frames into one. A trolley lifting ear is fixed in the middle of the front side wall of each front column beam, and the trolley lifting ear is connected to the rope end of the wire rope of the winch through a U-shaped shackle.

[0010] The walking mechanism is composed of a universal walking wheel frame, a universal walking wheel upright rod shaft, a universal walking wheel shaft, a universal walking wheel, a universal walking bracket, and a bracket bearing. A walking mechanism is respectively installed at the bottom end of the left and right two front column beams and the bottom end of the left and right two rear column beams. The upper end of the tubular universal walking wheel frame is fixedly sleeved on the outer side wall of the bottom end of the front column beam or the rear column beam, and the top end of the universal walking wheel upright rod shaft arranged in the universal walking wheel frame is fixed to the middle of the bottom of the front column beam or the rear column beam. A bracket bearing is provided in the middle of the upper part of the cross plate of the "冂"-shaped universal walking bracket, and the bottom end of the universal walking wheel upright rod shaft passes downward through the universal walking wheel frame and is fixed in the bracket bearing in the middle of the upper part of the cross plate of the "冂"-shaped universal walking bracket. The universal walking wheel is vertically placed in the middle of the two opposite vertical plates of the universal walking bracket, and the universal walking wheel shaft passes through the circular holes at the bottom of the two vertical plates of the universal walking bracket and the bearing in the middle of the universal walking wheel, so that the universal walking wheel is installed on the universal walking bracket.

[0011] At the bottom of each top crossbeam, there are two sets of hoisting mechanisms. Each set of hoisting mechanisms includes a chain block, an upper semi-circular hooping, a lower semi-circular hooping, and a connecting bolt. The tops of the two chain blocks are fixedly spaced at the bottom of the top crossbeam. Both the upper semi-circular hooping and the lower semi-circular hooping are semi-circular. At both ends of the upper semi-circular hooping, there are hooping upper wing plates perpendicular to the two ends of the upper semi-circular hooping. On the outer side of the hooping upper wing plate, there is a chain block hoisting hole, and on the inner side of the hooping upper wing plate, there are two side-by-side hooping upper round holes. At both ends of the lower semi-circular hooping, there are hooping lower wing plates perpendicular to the two ends of the lower semi-circular hooping. On the hooping lower wing plate, there are two side-by-side hooping lower round holes that are in the same positions as the two hooping upper round holes on the hooping upper wing plate. The connecting bolt passes through the hooping upper round hole of the hooping upper wing plate and the hooping lower round hole of the hooping lower wing plate from top to bottom and, together with the nut, connects the upper semi-circular hooping and the lower semi-circular hooping into a circle to surround the penstock from above and below.

[0012] Furthermore, above the tops of the upper semi-circular hooping that are in a straight line before and after and below the front and rear top crossbeams, there is a hooping connecting rod that connects the upper semi-circular hooping that are in a straight line before and after into one body.

[0013] Furthermore, in the middle of the bottom of each top crossbeam, there is a spacer support beam that separates the two penstocks to prevent them from colliding with each other.

[0014] Furthermore, on the outer side of the hooping upper wing plates at both ends of each upper semi-circular hooping, there is an upper semi-circular hooping card slot that can respectively catch the spacer support beam, the front column beam, or the rear column beam to prevent the penstock from swinging during transportation and from surging forward when being lowered on a steep slope section.

[0015] Furthermore, the upper semi-circular hooping adopts a "T" - shaped cross - section to ensure stiffness.

[0016] Furthermore, inside the two tracks and at intervals, there is a pulley for supporting the steel wire rope of the winch to make the steel wire rope slide smoothly.

[0017] The utility model includes a winch, a track, a composite trolley transport frame, a traveling mechanism and a hoisting mechanism. The composite trolley transport frame, the traveling mechanism and the hoisting mechanism together form a composite trolley. Among them: The traveling mechanism consists of a universal traveling wheel frame, a universal traveling wheel vertical rod shaft, a universal traveling wheel shaft, universal traveling wheels, a universal traveling support and a support bearing, which can ensure the stable traveling of the composite trolley on a steep slope terrain; The track is arranged with I-beams or channel steels that can meet the force requirements, and the universal traveling wheels adopt the rollers of a gantry crane that can automatically adapt to the change of the track path during the traveling process, preventing the composite trolley from jumping off the track during the traveling process. The hoisting mechanism consists of a hooping link, a chain block, an upper semi-circular hooping, a lower semi-circular hooping and connecting bolts, which is used for hoisting and adjusting the installation of the penstock. The winch selects a model that can meet the maximum force of hoisting and hauling according to the actual situation of the construction site (and a safety factor of 2 must be considered). The control system of the winch includes an electrical control system and a braking system, which are used to control the operation of the equipment and adjust various parameters. The electrical control system of the winch is configured with two operating conditions: point motion and continuous operation, and the operating speed is uniform and stable. The braking system adopts a hydraulic brake control system, and there will be no phenomenon that the composite trolley slips during the installation process due to brake failure. The chain block selects a model that can hoist the corresponding weight and there will be no chain slipping. The upper semi-circular hooping and the lower semi-circular hooping are processed and manufactured according to the actual situation. The upper hoop of the upper semi-circular hooping adopts a "T" cross-section to ensure stiffness, and the material can meet the force requirements of hoisting.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. Multi-functional integration: The composite trolley integrates three functions of transportation, hoisting and installation adjustment, reducing equipment replacement and operation conversion during the construction process and improving construction efficiency;

[0020] 2. Adapt to steep terrain: The composite trolley is designed with a traveling mechanism that can adapt to steep slopes and can stably travel on terrains with a high slope ratio, ensuring safety and stability during the construction process;

[0021] 3. High efficiency, safety, strong adaptability, simple and reliable structure: The double-gantry composite trolley transport frame has a solid structure, combined with a hoisting mechanism containing hooping, chain block, etc. The overall structure is simple, reliable, and easy to operate and maintain.

[0022] The utility model is mainly used for the transportation, hoisting and installation adjustment of penstocks, realizing efficient construction under complex terrain conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of unloading pipes on site for the utility model;

[0024] Figure 2Schematic diagram of the installation of the penstock into the composite trolley transport frame;

[0025] Figure 3 Schematic diagram of the composite trolley transport frame towed by a winch on a steep slope;

[0026] Figure 4 Schematic diagram of the end of the wire rope of the winch;

[0027] Figure 5 Schematic diagram of a U-shaped shackle;

[0028] Figure 6 For Figure 5 Side view;

[0029] Figure 7 Front view of the composite trolley transport frame;

[0030] Figure 8 For Figure 7 A-A sectional view;

[0031] Figure 9 Side view of the composite trolley transport frame;

[0032] Figure 10 Front view of the traveling mechanism of the composite trolley transport frame;

[0033] Figure 11 For Figure 10 Side view;

[0034] Figure 12 Front view of the hooping of the lifting mechanism of the composite trolley transport frame;

[0035] Figure 13 For Figure 12 Side view;

[0036] Figure 14 For Figure 12 Top view;

[0037] Figure 15 For Figure 12 B-B sectional view (semicircular hooping 72 "T" cross-section). Detailed implementation mode

[0038] The present invention will be further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0039] Embodiment 1:

[0040] A composite trolley device for slope steel pipe installation, comprising a winch 1, a track 2, a composite trolley transport frame 3, a traveling mechanism 4 and a lifting mechanism 7. A pair of parallel tracks 2 are laid on a steep slope 5, and a winch 1 is provided above the track 2 at the top of the steep slope 5;

[0041] The composite trolley transport frame 3 is composed of two identical left and right frames 31, a top crossbeam 32, and a trolley lifting ear 33. Each frame 31 is composed of a front column beam 34, a rear column beam 35, an upper connecting rod 36, a lower connecting rod 37, an oblique support rod 38, and a vertical support rod 39. The front column beam 34 and the rear column beam 35 are exactly the same. An upper connecting rod 36 and a lower connecting rod 37 are horizontally fixed between the upper and lower parts of the front column beam 34 and the rear column beam 35 placed identically in the front and rear. A vertical support rod 39 is fixed between the middle bottom of the upper connecting rod 36 and the middle top of the lower connecting rod 37 that are parallel to each other. A vertical support rod 39 is fixed between the middle bottom of the upper connecting rod 36 and the two sides of the vertical support rod 39 and the inner side wall of the front column beam 34 and the inner side wall of the rear column beam 35. An "eight"-shaped diagonal brace 38 is fixed between the middle bottom of the middle and lower connecting rods 37 and the inner side walls of the front column beam 34 and the inner side walls of the rear column beam 35. The upper connecting rod 36, the lower connecting rod 37 and the diagonal brace 38 connect the front column beam 34 and the rear column beam 35 into a stable frame 31; the two frames 31 are placed side by side, and a top crossbeam 32 is fixed between the top ends of the left and right front column beams 34 and the top ends of the left and right rear column beams 35; two front and rear parallel top crossbeams 32 connect the two frames 31 into one; a trolley lifting lug 33 is fixed in the middle of the front side wall of each front column beam 34, and the trolley lifting lug 33 is connected to the rope head of the wire rope 11 of the winch 1 through a U-shaped shackle 12;

[0042] The walking mechanism 4 is composed of a universal walking wheel frame 41, a universal walking wheel upright shaft 42, a universal walking wheel shaft 43, a universal walking wheel 44, a universal walking bracket 45, and a bracket bearing 46. A walking mechanism 4 is installed at the bottom ends of the left and right front column beams 34 and the bottom ends of the left and right rear column beams 35. The upper end of the tubular universal walking wheel frame 41 is fixedly sleeved on the outer wall of the bottom end of the front column beam 34 or the rear column beam 35, and the top end of the universal walking wheel upright shaft 42 provided in the universal walking wheel frame 41 is fixed to the bottom of the front column beam 34 or the rear column beam 35. In the middle, a bracket bearing 46 is provided in the middle of the upper horizontal plate of the "冂"-shaped universal travel bracket 45. The bottom end of the universal travel wheel upright shaft 42 passes downward through the universal travel wheel frame 41 and is fixed in the bracket bearing 46 in the middle of the upper horizontal plate of the "冂"-shaped universal travel bracket 45. The universal travel wheel 44 is vertically placed in the middle of the two opposite vertical plates of the universal travel bracket 45. The universal travel wheel shaft 43 passes through the circular holes at the bottom of the two vertical plates of the universal travel bracket 45 and the bearing in the middle of the universal travel wheel 44, and the universal travel wheel 44 is installed on the universal travel bracket 45.

[0043] At the bottom of each top cross beam 32, there are two sets of hoisting mechanisms 7. Each set of hoisting mechanism 7 includes a chain block 71, an upper semi-circular hooping 72, a lower semi-circular hooping 73, and a connecting bolt 74. The tops of the two chain blocks 71 are fixedly spaced at the bottom of the top cross beam 32. Both the upper semi-circular hooping 72 and the lower semi-circular hooping 73 are semi-circular. At both ends of the upper semi-circular hooping 72, there are hooping upper wing plates 76 perpendicular to the two ends of the upper semi-circular hooping 72. On the outer side of the hooping upper wing plate 76, there is a chain block hoisting hole 77, and on the inner side of the hooping upper wing plate 76, there are two juxtaposed hooping upper round holes 78. At both ends of the lower semi-circular hooping 73, there are hooping lower wing plates 79 perpendicular to the two ends of the lower semi-circular hooping 73. On the hooping lower wing plate 77, there are two juxtaposed hooping lower round holes 75 which are in the same positions as the two hooping upper round holes 78 of the hooping upper wing plate 76. The connecting bolt 74 passes through the hooping upper round hole 78 of the hooping upper wing plate 76 and the hooping lower round hole 75 of the hooping lower wing plate 77 from top to bottom and together with the nut connects the upper semi-circular hooping 72 and the lower semi-circular hooping 73 into a circle to surround the penstock 8 from above and below.

[0044] Below the front and rear top cross beams 32 and above the tops of the front and rear upper semi-circular hoopings 72 which are in the same straight line, there is a hooping connecting rod 70. The hooping connecting rod 70 connects the front and rear upper semi-circular hoopings 72 which are in the same straight line into one body.

[0045] On the outer side of the hooping upper wing plate 76 at both ends of each upper semi-circular hooping 72, there is an upper semi-circular hooping clamping groove 761. The upper semi-circular hooping clamping groove 761 can respectively clamp the front column beam 34 or the rear column beam 35 to prevent the penstock 8 from swinging during transportation and from surging forward when the penstock 8 is lowered in the steep slope section.

[0046] The upper semi-circular hooping 72 adopts a "T" - shaped cross - section to ensure rigidity.

[0047] Inside the two tracks 2 and at an interval, there is a pulley 21 which is used to support the steel wire rope 11 of the hoist 1 and enables the steel wire rope 11 to slide smoothly.

[0048] Working principle:

[0049] 1. Topographic survey at the penstock 8 installation site: Conduct a detailed survey of the topography of the project location to obtain topographic data, providing a basis for the design of the composite trolley;

[0050] 2. Composite trolley design: According to the survey results and construction period requirements, conduct the design of the composite trolley to determine the areas for segmented installation and construction processes;

[0051] 3. Equipment preparation: Select appropriate composite trolleys, hoists 1, tracks 2 and other construction equipment, and conduct debugging and inspection to ensure good equipment performance;

[0052] 4. Transportation of the penstock 8: Use the crane 6 to hoist the processed penstock 8 to the track 2 at the construction site, and then slowly lift it into the composite trolley transport rack 3. First, use the upper semi-circular hoops 72 and the lower semi-circular hoops 73 to respectively sleeve the outer wall of the penstock 8 from above and below, and then use the connecting bolts 74 to pass through the upper circular holes 78 of the hoop upper wing plates 76 and the lower circular holes 75 of the hoop lower wing plates 77 from top to bottom and connect the upper semi-circular hoops 72 and the lower semi-circular hoops 73 into a circle with nuts, tightly embracing the penstock 8;

[0053] 5. Hook the chain hoist 71 of the hoisting mechanism 7 to the chain hoist lifting hole 77 outside the hoop upper wing plate 76, and pull the chain hoist 71 to lift the penstock 8 off the ground and suspend it in the air;

[0054] 6. Start the winch 1, and pull the composite trolley transport rack 3 along the track 2 by the steel wire rope 11 of the winch 1 to transport the penstock 8 to the installation position;

[0055] 7. Pull the chain hoist 71 again to make the suspended penstock 8 fall back to the ground, and then the installation can be carried out.

[0056] Embodiment 2:

[0057] The structure of Embodiment 2 is basically the same as that of Embodiment 1, and the difference lies in:

[0058] At the bottom of each top cross beam 32, there are two sets of exactly the same hoisting mechanisms 7. Each hoisting mechanism 7 includes a chain hoist 71, an upper semi-circular hoop 72, a lower semi-circular hoop 73, and a connecting bolt 74. The tops of the two chain hoists 71 are fixedly spaced at the bottom of the top cross beam 32. The upper semi-circular hoop 72 and the lower semi-circular hoop 73 are both semi-circular. At both ends of the upper semi-circular hoop 72, there are hoop upper wing plates 76 perpendicular to both ends of the upper semi-circular hoop 72. On the outside of the hoop upper wing plates 76, there are chain hoist lifting holes 77. On the inside of the hoop upper wing plates 76, there are two side-by-side upper circular holes 78 of the hoop. At both ends of the lower semi-circular hoop 73, there are hoop lower wing plates 79 perpendicular to both ends of the lower semi-circular hoop 73. On the hoop lower wing plates 77, there are two side-by-side lower circular holes 75 of the hoop that are in the same position as the two upper circular holes 78 of the hoop upper wing plates 76. The connecting bolt 74 passes through the upper circular holes 78 of the hoop upper wing plates 76 and the lower circular holes 75 of the hoop lower wing plates 77 from top to bottom and connects the upper semi-circular hoop 72 and the lower semi-circular hoop 73 into a circle with nuts, embracing the penstock 8 from above and below.

[0059] In the middle of the bottom of each top cross beam 32, there is an interval support beam 81 that separates the two penstocks 8 to prevent them from colliding with each other.

[0060] On the outer sides of the upper hoop wing plates 76 at both ends of each upper semi-circular hoop 72, there is an upper semi-circular hoop clamping groove 761. The upper semi-circular hoop clamping grooves 761 can respectively clamp the spaced support beams 81, the front column beams 34 or the rear column beams 35, preventing the penstock 8 from swinging during transportation and the penstock 8 from surging forward when being lowered on the steep slope section.

[0061] The present utility model is not limited to the above best embodiment. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as the present utility model, they are all within its protection scope.

Claims

1. A composite trolley device for installing a sloped steel pipe, characterized in that: It includes a winch, tracks, a composite trolley transport frame, a traveling mechanism, and a hoisting mechanism. A pair of并排 tracks are laid on a steep slope, and a winch is provided above the tracks at the top of the steep slope. The composite trolley transport frame consists of two identical frames on the left and right, a top cross beam, and a trolley lifting lug group surface. Each frame is composed of a front column beam, a rear column beam, upper connecting rods, lower connecting rods, diagonal braces, and vertical braces. The front column beam and the rear column beam are exactly the same. Upper connecting rods and lower connecting rods are horizontally fixed respectively between the upper and middle parts and the middle and lower parts of the front column beams and rear column beams placed in the same position front and back. A vertical brace is fixed between the middle bottom of the upper connecting rod and the middle top of the lower connecting rod which are parallel up and down. Diagonal braces in the shape of "八” are fixed between the middle bottom of the upper connecting rod, both sides of the vertical brace and the inner side walls of the front column beam and the rear column beam, and between the middle bottom of the lower connecting rod and the inner side walls of the front column beam and the rear column beam. The connecting rods, lower connecting rods, and diagonal braces connect the front column beam and the rear column beam into a stable frame. The two frames are placed side by side left and right. A top cross beam is fixed between the tops of the left and right front column beams and between the tops of the left and right rear column beams. Two parallel front and back top cross beams connect the two frames into one body. A trolley lifting lug is fixed in the middle of the front side wall of each front column beam. The trolley lifting lug is connected to the end of the steel wire rope of the winch through a U-shaped shackle. The traveling mechanism consists of a universal traveling wheel frame, a universal traveling wheel vertical rod shaft, a universal traveling wheel shaft, universal traveling wheels, a universal traveling support, and a support bearing. A traveling mechanism is installed at the bottom end of each of the left and right front column beams and the bottom end of each of the left and right rear column beams. The upper end of the tubular universal traveling wheel frame is fixedly sleeved on the outer side wall of the bottom end of the front column beam or the rear column beam. The top end of the universal traveling wheel vertical rod shaft arranged in the universal traveling wheel frame is fixed in the middle of the bottom of the front column beam or the rear column beam. A support bearing is provided in the middle of the upper surface of the cross plate of the "冂”-shaped universal traveling support. The bottom end of the universal traveling wheel vertical rod shaft passes through the universal traveling wheel frame downward and is fixed in the support bearing in the middle of the upper surface of the cross plate of the "冂”-shaped universal traveling support. The universal traveling wheels are vertically placed between two opposite vertical plates of the universal traveling support. The universal traveling wheel shaft passes through the round holes at the bottom of the two vertical plates of the universal traveling support and the bearing in the middle of the universal traveling wheel, and installs the universal traveling wheel on the universal traveling support. Two sets of lifting mechanisms are arranged at the bottom of each top crossbeam, and each set of lifting mechanisms includes a hand chain hoist, an upper semicircular hoop, a lower semicircular hoop, and connecting bolts. The top ends of the two hand chain hoists are fixed at intervals at the bottom of the top crossbeam. The upper semicircular hoop and the lower semicircular hoop are both semicircular. Both ends of the upper semicircular hoop are provided with hoop upper wing plates perpendicular to the two ends of the upper semicircular hoop. The outer side of the hoop upper wing plate is provided with a hand chain hoist lifting hole, and the inner side of the hoop upper wing plate is provided with two The upper circular holes of the hoop are arranged side by side, and lower wing plates of the hoop are perpendicular to the two ends of the lower semicircular hoop at both ends of the lower semicircular hoop. Two lower circular holes of the hoop are arranged side by side on the lower wing plate of the hoop, and the positions of which are consistent with the two upper circular holes of the hoop upper wing plate of the hoop are arranged on the lower wing plate of the hoop. The connecting bolts pass through the upper circular holes of the hoop of the upper wing plate of the hoop and the lower circular holes of the hoop of the lower wing plate of the hoop from top to bottom, and then connect the upper semicircular hoop and the lower semicircular hoop together with the nuts to form a circle, thereby encircling the pressure steel pipe from top to bottom.

2. The composite trolley device for installing a sloped steel pipe according to claim 1, characterized in that: A hoop connecting rod is arranged below the front and rear top cross beams and on the tops of the front and rear upper semicircular hoop on the same straight line. The hoop connecting rod connects the front and rear upper semicircular hoop on the same straight line into one.

3. The composite trolley device for installing a sloped steel pipe according to claim 1, characterized in that: A spacing support beam is arranged in the middle of the bottom of each top cross beam to separate the two pressure steel pipes and avoid collision with each other.

4. The composite trolley device for installing a sloped steel pipe according to claim 1, characterized in that: An upper semicircular hoop clamping groove is provided on the outer side of the hoop upper wing plate at both ends of each upper semicircular hoop, and the upper semicircular hoop clamping groove can clamp the interval support beam, the front column beam or the rear column beam respectively.

5. The composite trolley device for installing a sloped steel pipe according to claim 1, characterized in that: The upper semicircular hoop adopts a "T" shaped section to ensure rigidity.

6. The composite trolley device for installing a sloped steel pipe according to claim 1, characterized in that: On the inner side of the two rails, there is a pulley at a certain distance to support the wire rope of the winch and allow the wire rope to slide smoothly.

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