Assembling device for prefabricating and assembling underground pipe gallery

Abstract

The utility model relates to an assembling device for prefabricating an assembled underground pipe gallery, and belongs to the technical field of underground pipe gallery construction equipment. Comprising a U-shaped shield; the cantilever hanging bracket is fixed on the U-shaped shield, and one end of the cantilever hanging bracket is suspended out of the outer side of the U-shaped shield; and the hoisting sling comprises a hoisting trolley which is connected to the cantilever hanging bracket in a sliding manner, and the hoisting trolley is connected with a rotary sling for hoisting the duct piece. According to the splicing device for the prefabricated underground pipe gallery, when the pipe gallery is assembled, the horizontal included angle between the turning radius of the U-shaped shield and the rear pipe gallery assembly can be adjusted through the rotatable lifting appliance; therefore, the turning radius of the U-shaped shield is not affected, the upper surface of the laid pipe gallery can be used for transporting the pipe pieces, and no extra requirement for construction land occupation exists. The overall length of the device is small, except that the crane carriage can move independently, other parts move along with the U-shaped shield track, and the overall cost is lower.

Description

Technical Field

[0001] The present application relates to the technical field of underground pipe gallery construction equipment, and in particular to an assembly device for prefabricated and assembled underground pipe gallery. Background Art

[0002] With the continuous development of technology, underground pipe gallery construction has gradually begun to try prefabrication and assembly in some engineering projects. The project construction is carried out in the mode of using gantry cranes in combination with U-shaped shields or lifting equipment in combination with underground pipe gallery assembly platforms. Gantry crane cooperation construction method: The gantry leg on one side of the gantry crane is fixed on the middle shield of the U-shaped shield, and the gantry leg on the other side is relatively slidable with the gantry crane arm, and is stepped on the erected pipe gallery.

[0003] In the above method, due to the transportation of the pipe gallery, it is necessary to rotate horizontally 90 degrees after being lifted from the transport vehicle, which requires the gantry crane to have a longer cantilever or a larger span between the gantry legs in order to reserve enough horizontal rotation space for the pipe gallery. This design method increases the cost of construction equipment. In addition, because the gantry legs on one side of the gantry crane are fixed on the middle shield of the U-shaped shield, the turning radius of the U-shaped shield needs to be within the effective range of the gantry crane hoisting, which limits the turning radius of the U-shaped shield.

[0004] After each tunnel is erected, it is necessary to move forward a certain distance to position the movable legs before continuing construction; the large number of construction procedures affects the overall construction efficiency. The method of using lifting equipment in conjunction with the underground tunnel assembly platform is relatively complicated. The horizontal placement of the upper hoisting gantry crane generates lateral bending moment on the U-shaped shield and the fixed channel after the tunnel assembly cannot be used. A separate channel needs to be built to transport it from the rear to the hoisting point, which has a high construction cost.

[0005] The prefabrication and assembly construction of pipe corridors is generally carried out in cities, which has requirements on construction time and construction area. Therefore, there is an urgent need for an underground pipe corridor construction equipment that can make the prefabrication and assembly construction process of the pipe corridor simpler, and the prefabrication and assembly construction of the pipe corridor has basically no impact on the U-shield construction. At the same time, the upper surface of the pipe corridor after assembly can be used, and there is no additional land requirement for the construction of the pipe corridor. In addition, the equipment occupies relatively small space, and the overall equipment cost is relatively high. Summary of the invention

[0006] An embodiment of the present application provides an assembly device for prefabricated and assembled underground pipe corridors to solve the problem in the related art that the construction method of a gantry crane in conjunction with a U-shaped shield requires that the turning radius of the U-shaped shield be within the effective range of the gantry crane hoisting, thus limiting the turning radius of the U-shaped shield.

[0007] The embodiment of the present application provides an assembly device for prefabricated underground pipe gallery, comprising:

[0008] U-shaped shield;

[0009] A cantilever hanger, wherein the cantilever hanger is fixed on the U-shaped shield, and one end of the cantilever hanger is suspended outside the U-shaped shield;

[0010] A lifting sling comprises a lifting trolley slidably connected to the cantilever hanger, and the lifting trolley is connected to a rotatable sling for lifting pipe segments.

[0011] In some embodiments: the cantilever hanger includes a vertical support truss fixedly connected to the top of the U-shaped shield, the top of the vertical support truss is connected to a transverse support cantilever, and a diagonal brace is connected between the transverse support cantilever and the vertical support truss.

[0012] In some embodiments: the cantilever hanger also includes a retractable leg supporting the lateral supporting cantilever, the top of the retractable leg is rotatably connected to the diagonal support through a hinge shaft, the bottom of the retractable leg is provided with a supporting foot, and the diagonal support is connected to a retractable mechanism that drives the retractable leg to rotate around the hinge shaft.

[0013] In some embodiments: the retractable leg includes a fixed section and a retractable section which are socketed with each other, an adjustment mechanism is used between the fixed section and the retractable section to control the extension length of the retractable section, and the retractable mechanism is a hydraulic cylinder connected between the fixed section and the diagonal support.

[0014] In some embodiments: a slide rail slidably connected to the lifting trolley is provided on the top of the lateral supporting cantilever, and the lifting trolley reciprocates horizontally and / or longitudinally on the slide rail.

[0015] In some embodiments: the four bottom corners of the vertical support truss are respectively provided with support points connected to the U-shaped shield, and the support points are padded with gaskets for adjusting the horizontality of the vertical support truss.

[0016] In some embodiments: the lifting trolley is connected to the rotatable lifting device via a steel wire rope and a pulley block, one end of the steel wire rope is connected to a winch for lifting the rotatable lifting device, and the winch is fixed on the lifting trolley or the cantilever hanger.

[0017] In some embodiments: the rotatable hanger includes a lower suspension arm for connecting the pipe segment, the top of the lower suspension arm is rotatably connected to the upper suspension arm, the top of the upper suspension arm is rotatably connected to the suspension rod, and the top of the suspension rod is connected to a movable pulley block;

[0018] A first angle adjustment mechanism for driving the lower arm to rotate around a first direction is connected between the lower arm and the upper arm, a second angle adjustment mechanism for driving the upper arm to rotate around a second direction is connected between the upper arm and the boom, and a third angle adjustment mechanism for driving the boom to rotate around a third direction is connected between the movable pulley block and the boom.

[0019] In some embodiments: the first direction, the second direction and the third direction are perpendicular to each other, the first angle adjustment mechanism and the second angle adjustment mechanism are telescopic cylinders, and the third angle adjustment mechanism is an electric turntable.

[0020] In some embodiments: through-hole jacks are symmetrically provided at both ends of the lower suspension arm, a suspension rope connected to the pipe segment is provided inside the through-hole jack, and a connecting piece for fixing the pipe segment is connected to one end of the suspension rope away from the through-hole jack.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] An embodiment of the present application provides an assembly device for prefabricated and assembled underground pipe corridors. The assembly device for prefabricated and assembled underground pipe corridors of the present application is provided with a U-shaped shield; a cantilever hanger, which is fixed on the U-shaped shield, and one end of the cantilever hanger is suspended outside the U-shaped shield; and a lifting sling, which includes a lifting trolley slidably connected to the cantilever hanger, and the lifting trolley is connected to a rotatable sling for lifting pipe segments.

[0023] Therefore, when assembling the pipe gallery, the assembly device for prefabricated underground pipe gallery of the present application can adjust the horizontal angle between the turning radius of the U-shaped shield and the assembly of the rear pipe gallery through the rotatable hanger; therefore, it has no effect on the turning radius of the U-shaped shield, and the upper surface of the laid pipe gallery can be used to transport the pipe segments, and there is no additional requirement for the construction area. The overall length of the device is small, and except for the lifting trolley that can move independently, the other parts move with the U-shaped shield track, and the overall cost is more advantageous. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the cantilever hanger according to an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the structure of the lifting trolley in the embodiment of the present application;

[0028] Figure 4 This is a structural front view of the swivel hanger of the embodiment of the present application;

[0029] Figure 5 This is a left side view of the structure of the rotatable hanger according to an embodiment of the present application.

[0030] Reference numerals:

[0031] 100, U-shaped shield; 200, cantilever hanger; 210, vertical support truss; 220, lateral support cantilever; 230, diagonal brace; 240, retractable legs; 250, hinge shaft; 260, retractable mechanism;

[0032] 300. Lifting sling; 310. Lifting trolley; 320. Rotatable sling; 321. Lower boom; 322. Upper boom; 323. Suspension rod; 324. Pulley block; 325. First angle adjustment mechanism; 326. Second angle adjustment mechanism; 327. Third angle adjustment mechanism; 328. Through-hole jack; 329. Lifting rope; 330. Winch; 400. Segment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] An embodiment of the present application provides an assembly device for prefabricated underground pipe corridors, which can solve the problem in the related art that the construction method of a gantry crane in conjunction with a U-shaped shield requires that the turning radius of the U-shaped shield be within the effective range of the gantry crane hoisting, thus limiting the turning radius of the U-shaped shield.

[0035] See also Figure 1 As shown, the embodiment of the present application provides an assembly device for prefabricated underground pipe gallery, comprising:

[0036] The U-shaped shield 100 is divided into three sections: front, middle and rear. The three sections are connected in the middle by jacking cylinders. The extension and retraction distance of the cylinders determines the turning radius of the U-shaped shield 100. The U-shaped shield 100 is controlled to extend the jacking cylinders to contact the end of the prefabricated pipe gallery. The power system of the U-shaped shield 100 is controlled and the control parameters are adjusted according to the overall movement of the equipment to push the device forward as a whole.

[0037] The cantilever hanger 200 is fixed on the middle shield of the U-shaped shield 100, and one end of the cantilever hanger 200 is suspended outside the U-shaped shield 100. The cantilever hanger 200 is welded from a steel material, and the cantilever hanger 200 is located at the top of the cantilever hanger 200 and moves synchronously with the cantilever hanger 200. One end of the cantilever hanger 200 is suspended outside the U-shaped shield 100 to facilitate the lifting device 300 to lift the pipe segment 400 delivered by the beam transport vehicle.

[0038] The lifting device 300 includes a lifting trolley 310 slidably connected to the cantilever hanger 200, and the lifting trolley 310 is connected to a rotatable lifting device 320 for lifting the pipe segment 400. The lifting trolley 310 is located on the top of the cantilever hanger 200 and can reciprocate horizontally and / or longitudinally. The lifting trolley 310 transfers the pipe segment 400 from the pipe removal position to the assembly position of the pipe segment 400.

[0039] The rotatable hanger 320 is used to hang the pipe segment 400. The rotatable hanger 320 is suspended on the lifting trolley 310 and reciprocates horizontally and / or longitudinally with the lifting trolley 310. The rotatable hanger 320 is not only used to hang the pipe segment 400, but also used to adjust the posture of the pipe segment 400 so as to splice the pipe segment 400 with the assembled prefabricated pipe gallery in a set posture.

[0040] When assembling the tunnel, the assembly device for prefabricated and assembled underground tunnels in the embodiment of the present application can adjust the turning radius of the U-shaped shield 100 and the horizontal angle existing in the rear tunnel assembly through the rotatable hanger 320; therefore, it has no effect on the turning radius of the U-shaped shield 100.

[0041] The embodiment of the present application can use the upper surface of the laid pipe gallery to transport the pipe segments 400, and there is no additional requirement for the construction area. The overall length of the device is small, and except for the lifting trolley 310 that can move independently, the other parts move along the track of the U-shaped shield 100, and the overall cost is more advantageous.

[0042] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides an assembly device for prefabricated and assembled underground pipe gallery, and the cantilever hanger 200 of the assembly device includes a vertical support truss 210 fixedly connected to the top of the middle shield of the U-shaped shield 100. The top of the vertical support truss 210 is connected to a lateral support cantilever 220 suspended outside the U-shaped shield 100, and a diagonal brace 230 is connected between the lateral support cantilever 220 and the vertical support truss 210.

[0043] The diagonal brace 230 is used to enhance the connection strength between the transverse support cantilever 220 and the vertical support truss 210, so that the transverse support cantilever 220 can withstand the gravity of the pipe segment 400 without bending or breaking during long-term use. A plurality of stiffening beams are also arranged between the diagonal brace 230 and the transverse support cantilever 220 to enhance the structural strength of the diagonal brace 230 and the transverse support cantilever 220.

[0044] The cantilever hanger 200 further includes a retractable leg 240 supporting the lateral support cantilever 220, and the top of the retractable leg 240 is rotatably connected to the diagonal support 230 via a hinge shaft 250. A foot is provided at the bottom of the retractable leg 240, and a retractable mechanism 260 is connected to the diagonal support 230 to drive the retractable leg 240 to rotate around the hinge shaft 250.

[0045] Before hoisting and assembling the pipe segment 400, the retracting mechanism 260 of the assembly device releases the retractable legs 240, and extends the retractable legs 240 to contact the top surface of the assembled prefabricated pipe gallery and ensure force; before the pipe segment 400 is hoisted into place and the U-shaped shield 100 moves forward, the retracting mechanism 260 folds the retractable legs 240 and retracts the retractable legs 240 off the ground, and the cantilever hanger 200 and the lifting sling 300 follow the U-shaped shield 100 to move forward.

[0046] The retractable legs 240 of the assembling device are configured according to the center of gravity position of the pipe segment 400 hoisted by the lifting hoist 300 on the cantilever hanger 200. If the center of gravity position after the pipe segment 400 is hoisted is located behind the U-shaped shield 100, the retractable legs 240 are configured to ensure that the center of gravity is always within the horizontal projection frame of several supporting points during the construction process.

[0047] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides an assembly device for prefabricated underground pipe gallery, wherein the retractable legs 240 of the assembly device include a fixed section and a retractable section which are mutually sleeved. The extension length of the retractable section is controlled by an adjustment mechanism between the fixed section and the retractable section, and the retractable mechanism 260 is a hydraulic cylinder connected between the fixed section and the diagonal support 230.

[0048] The adjustment mechanism between the fixed section and the telescopic section can be a hydraulic cylinder, a screw rod mechanism, a gear rack mechanism, etc. When the retractable leg 240 is released by the retractable mechanism 260, the telescopic leg 240 is vertically perpendicular to the top surface of the assembled prefabricated pipe gallery. After the telescopic section is extended from the fixed section by the adjustment mechanism, it is seated on the top surface of the assembled prefabricated pipe gallery.

[0049] In some alternative embodiments: See Figures 1 to 3As shown, an embodiment of the present application provides an assembly device for prefabricated and assembled underground pipe corridors, and the top of the lateral support cantilever 220 of the assembly device is provided with a slide rail that is slidably connected to a lifting trolley 310, and the lifting trolley 310 moves back and forth horizontally and / or longitudinally on the slide rail.

[0050] The slide rail at the top of the transverse supporting cantilever 220 extends along the length direction of the transverse supporting cantilever 220. Two slide rails are provided, and the two slide rails are parallel to each other and spaced apart at the top of the transverse supporting cantilever 220. The lifting trolley 310 is provided with a roller rotating on the slide rail, and the roller moves longitudinally along the length direction of the slide rail under the driving action of the power device.

[0051] A transverse guide rail is provided on the top of the lifting trolley 310, and a fixed pulley block is slidably connected to the transverse guide rail. The fixed pulley block moves transversely along the length direction of the transverse guide rail under the driving action of the power device. The fixed pulley block is connected to the swivel sling 320 through a steel wire rope, and the lifting trolley 310 drives the swivel sling 320 to move synchronously by reciprocating in the horizontal direction in the horizontal direction and / or in the longitudinal direction.

[0052] The four bottom corners of the vertical support truss 210 are provided with support points for connecting the U-shaped shield 100, and the support points are padded with gaskets for adjusting the horizontality of the vertical support truss 210. The verticality of the vertical support truss 210 can be adjusted individually by gaskets at the four support points, so that the horizontal height difference of the sliding rail of the slidable connection hoisting trolley 310 on the assembly device can be ensured.

[0053] The lifting trolley 310 is connected to the swivel sling 320 via a wire rope and a pulley block, one end of the wire rope is connected to a winch 330 for lifting the swivel sling 320, and the winch 330 is fixed on the lifting trolley 310 or the cantilever hanger 200. The winch 330 controls the hanging height of the swivel sling 320 by retracting and releasing the wire rope.

[0054] In some alternative embodiments: See Figure 4 and Figure 5 As shown, an embodiment of the present application provides an assembly device for prefabricated and assembled underground pipe corridors, wherein a rotatable hanger 320 of the assembly device includes a lower suspension arm 321 for connecting pipe segments 400, an upper suspension arm 322 is rotatably connected to the top of the lower suspension arm 321, a suspension rod 323 is rotatably connected to the top of the upper suspension arm 322, and a movable pulley block 324 is connected to the top of the suspension rod 323.

[0055] A first angle adjustment mechanism 325 is connected between the lower arm 321 and the upper arm 322 to drive the lower arm 321 to rotate around a first direction, a second angle adjustment mechanism 326 is connected between the upper arm 322 and the suspension rod 323 to drive the upper arm 322 to rotate around a second direction, and a third angle adjustment mechanism 327 is connected between the movable pulley set 324 and the suspension rod 323 to drive the suspension rod 323 to rotate around a third direction.

[0056] The first direction, the second direction and the third direction are perpendicular to each other, and the first direction, the second direction and the third direction are respectively the X-axis, the Y-axis and the Z-axis directions. The first angle adjustment mechanism 325 and the second angle adjustment mechanism 326 are preferably not limited to telescopic cylinders, and the third angle adjustment mechanism 327 is preferably not limited to an electric turntable.

[0057] A through-hole jack 328 is symmetrically provided at both ends of the lower suspension arm 321. A suspension rope 329 connected to the pipe segment 400 is provided inside the through-hole jack 328. The end of the suspension rope 329 away from the through-hole jack 328 is connected to a connecting piece for fixing the pipe segment 400. The connecting piece is preferably but not limited to a hook. The through-hole jack 328 pulls the suspension rope 329 to move up and down through telescopic movement, thereby adjusting the posture of the pipe segment 400.

[0058] How it works

[0059] The embodiment of the present application provides an assembly device for prefabricated and assembled underground pipe corridors. The assembly device for prefabricated and assembled underground pipe corridors of the present application is provided with a U-shaped shield 100; a cantilever hanger 200, which is fixed on the U-shaped shield 100, and one end of the cantilever hanger 200 is suspended outside the U-shaped shield 100; a lifting sling 300, which includes a lifting trolley 310 slidably connected to the cantilever hanger 200, and the lifting trolley 310 is connected to a rotatable sling 320 for lifting the pipe segment 400.

[0060] Therefore, when assembling the pipe gallery, the assembly device for prefabricated underground pipe gallery of the present application can adjust the horizontal angle between the turning radius of the U-shaped shield 100 and the assembly of the rear pipe gallery through the rotatable hanger 320; therefore, there is no effect on the turning radius of the U-shaped shield 100, and the upper surface of the laid pipe gallery can be used to transport the pipe segments, and there is no additional requirement for the construction area. The overall length of the device is small, and except for the lifting trolley 310 that can move independently, the other parts move with the trajectory of the U-shaped shield 100, and the overall cost is more advantageous.

[0061] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0062] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0063] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An assembly device for prefabricated underground pipe gallery, characterized in that: include: U-shield (100); A cantilever hanger (200), wherein the cantilever hanger (200) is fixed on the U-shaped shield (100), and one end of the cantilever hanger (200) is suspended outside the U-shaped shield (100); A lifting sling (300) comprises a lifting trolley (310) slidably connected to the cantilever hanger (200), wherein the lifting trolley (310) is connected to a rotatable sling (320) for lifting a pipe segment (400).

2. The assembly device for prefabricated underground pipe gallery according to claim 1, characterized in that: The cantilever hanger (200) comprises a vertical support truss (210) fixedly connected to the top of the U-shaped shield (100), the top of the vertical support truss (210) is connected to a transverse support cantilever (220), and a diagonal brace (230) is connected between the transverse support cantilever (220) and the vertical support truss (210).

3. The assembly device for prefabricated underground pipe gallery according to claim 2, characterized in that: The cantilever hanger (200) also includes a retractable leg (240) supporting the transverse supporting cantilever (220), the top of the retractable leg (240) is rotatably connected to the diagonal support (230) via a hinge shaft (250), the bottom of the retractable leg (240) is provided with a supporting foot, and the diagonal support (230) is connected to a retractable mechanism (260) for driving the retractable leg (240) to rotate around the hinge shaft (250).

4. The assembly device for prefabricated underground pipe gallery according to claim 3, characterized in that: The telescopic leg (240) comprises a fixed section and a telescopic section which are sleeved together, an adjustment mechanism being provided between the fixed section and the telescopic section to control the extension length of the telescopic section, and the retractable mechanism (260) is a hydraulic cylinder connected between the fixed section and the diagonal support (230).

5. The assembly device for prefabricated underground pipe gallery according to claim 2, characterized in that: A slide rail slidably connected to the lifting trolley (310) is provided at the top of the transverse supporting cantilever (220), and the lifting trolley (310) reciprocates horizontally and / or longitudinally on the slide rail.

6. The assembly device for prefabricated underground pipe gallery according to claim 2, characterized in that: Support points for connecting the U-shaped shield (100) are respectively arranged at the four bottom corners of the vertical support truss (210), and the support points are padded with gaskets for adjusting the horizontality of the vertical support truss (210).

7. The assembly device for prefabricated underground pipe gallery according to claim 1, characterized in that: The lifting trolley (310) and the rotatable lifting device (320) are connected via a steel wire rope and a pulley block, one end of the steel wire rope is connected to a winch (330) for lifting the rotatable lifting device (320), and the winch (330) is fixed on the lifting trolley (310) or the cantilever hanger (200).

8. The assembly device for prefabricated underground pipe gallery according to claim 1, characterized in that: The rotatable hanger (320) comprises a lower suspension arm (321) for connecting the pipe segment (400), the top of the lower suspension arm (321) is rotatably connected to an upper suspension arm (322), the top of the upper suspension arm (322) is rotatably connected to a suspension rod (323), and the top of the suspension rod (323) is connected to a movable pulley block (324); A first angle adjustment mechanism (325) is connected between the lower suspension arm (321) and the upper suspension arm (322) for driving the lower suspension arm (321) to rotate around a first direction; a second angle adjustment mechanism (326) is connected between the upper suspension arm (322) and the suspension rod (323) for driving the upper suspension arm (322) to rotate around a second direction; and a third angle adjustment mechanism (327) is connected between the movable pulley group (324) and the suspension rod (323) for driving the suspension rod (323) to rotate around a third direction.

9. The assembly device for prefabricated underground pipe gallery according to claim 8, characterized in that: The first direction, the second direction and the third direction are mutually perpendicular in pairs; the first angle adjustment mechanism (325) and the second angle adjustment mechanism (326) are both telescopic oil cylinders; and the third angle adjustment mechanism (327) is an electric turntable.

10. The assembly device for prefabricated underground pipe gallery according to claim 8, characterized in that: Both ends of the lower suspension arm (321) are symmetrically provided with through-hole jacks (328), a suspension rope (329) for connecting the pipe segment (400) is provided inside the through-hole jack (328), and a connecting piece for fixing the pipe segment (400) is connected to one end of the suspension rope (329) away from the through-hole jack (328).

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