CN220539633U - Prefabricated inverted arch assembling trolley - Google Patents

Abstract

The utility model relates to a prefabricated inverted arch assembling trolley, which comprises: the device comprises a main beam assembly, a first supporting leg assembly, a second supporting leg assembly, at least two middle supporting leg assemblies and at least one crown block; the middle landing leg subassembly slides and sets up on two girders, and the middle landing leg subassembly all includes: the device comprises a sliding device, a guide post, a main board, a supporting seat and a jacking rod; the main board is fixedly provided with a supporting seat and a pair of guide posts, and the guide posts are arranged along the vertical direction; the sliding device is in sliding connection with the guide post, and when the sliding device slides along the guide post, the supporting seat can be abutted with the bottom surface of the tunnel to be used for supporting the main beam, and the sliding device is also in sliding connection with the main beam; the tight pole setting in top, and the tight pole in top can be followed perpendicularly and the length direction motion of girder in order to be used for supporting the lateral wall in tunnel. The sliding device is utilized to move on the guide post so that the supporting seat is abutted with the bottom surface of the tunnel, the overhead arch block is not stressed in the moving process of the main beam, and the movement of the main beam can not disturb the installed overhead arch block.

Description

Prefabricated inverted arch assembling trolley

Technical Field

The utility model relates to the field of tunnel construction, in particular to a prefabricated inverted arch assembly trolley.

Background

The inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of the upper supporting structure, and forms a tunnel whole with the secondary lining, and is the foundation of the tunnel structure and one of main components of the tunnel structure. The inverted arch is assembled equipment at continuous operation, and the inverted arch is assembled equipment and is required to travel along the tunnel, and the existing inverted arch is assembled equipment and is all walked at the top of the assembled inverted arch block, and the installed inverted arch block is disturbed soon. There is therefore a need for a splicing apparatus that does not disturb the pre-formed inverted arch that has been installed during travel.

Disclosure of Invention

First, the technical problem to be solved

The utility model provides a prefabricated inverted arch assembling trolley, which solves the problem that assembling equipment in the prior art produces disturbance on inverted arch blocks in the advancing process.

(II) technical scheme

In order to solve the above problems, the present utility model provides a prefabricated inverted arch assembling trolley, comprising: the device comprises a main beam assembly, a first supporting leg assembly, a second supporting leg assembly, at least two middle supporting leg assemblies and at least one crown block;

the main beam assembly comprises two parallel main beams;

the first support leg assembly is used for connecting the two main beams, the first ends of the two main beams are fixedly connected with the first support leg assembly, and the first support leg assembly is used for being quickly abutted with an inverted arch in a tunnel; the second support leg assembly is used for connecting the two main beams, the second ends of the two main beams are fixedly connected with the second support legs, and the second support leg assembly is used for being abutted to the bottom of the tunnel;

the middle leg assembly slides and sets up two on the girder, the middle leg assembly all includes: the device comprises a sliding device, a guide post, a main board, a supporting seat and a jacking rod;

the main board is fixedly provided with the supporting seat and the pair of guide posts, and the guide posts are arranged along the vertical direction; the sliding device is in sliding connection with the guide post, and when the sliding device slides along the guide post, the supporting seat can be abutted with the bottom surface of the tunnel so as to be used for supporting the main beam, and the sliding device is also in sliding connection with the main beam; the jacking rod is arranged on the main board and can move along the length direction vertical to the main beam so as to be used for supporting the side wall of the tunnel;

the overhead travelling crane is slidably mounted on the main beam, and the overhead travelling crane is used for hoisting the inverted arch.

Preferably, the sliding device comprises a sliding sleeve, an outer guide sleeve and a driving device;

the sliding sleeve is fixedly arranged on the outer guide sleeve, the sliding sleeve is slidably mounted on the main beam, the outer guide sleeve is slidably mounted on the guide post, one end of the driving device is fixed on the main beam, and the other end of the driving device is fixed on the sliding sleeve.

Preferably, the middle leg assembly further comprises a sliding plate slidably mounted on the main plate, the sliding plate being movable on the main plate in a direction perpendicular to the main beam;

the guide post is fixed on the sliding plate, a first oil cylinder is arranged on the sliding plate, one end of the first oil cylinder is fixed on the outer guide sleeve, and the first oil cylinder can drive the outer guide sleeve to slide.

Preferably, the first leg assembly and the second leg assembly each comprise a pair of outer sleeves and a pair of inner sleeves;

the outer sleeves are in one-to-one correspondence with the main beams, the outer sleeves are fixedly arranged on the main beams, the inner sleeves are slidably arranged in the outer sleeves, second oil cylinders are fixedly arranged on the outer sleeves, one ends of the second oil cylinders are fixedly arranged with the inner sleeves, and the second oil cylinders can drive the inner sleeves to move in the vertical direction;

the inner sleeve comprises a first supporting leg component and a second supporting leg component, wherein a supporting rod is fixedly arranged at one end of the inner sleeve in the first supporting leg component, supporting blocks are fixedly arranged at the first ends of the inner sleeve in the second supporting leg component, connecting rods are further arranged between the two supporting blocks, and the connecting rods are used for connecting the two supporting blocks.

Preferably, an end beam is arranged between the two main beams, the end beam is used for connecting the two main beams, and the end beams are arranged at two ends of the main beams.

Preferably, the crown block comprises a walking frame and a lifting frame;

the walking frame is slidably mounted on the main beam, a winch unit is arranged on the walking frame and connected with the lifting frame through a steel rope, and the winch can drive the lifting frame to move in the vertical direction.

Preferably, the winch unit comprises a first winch, a second winch, a third winch and a fourth winch which are all arranged on the walking frame; the walking frame is rotatably provided with a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley;

the lifting frame is rotatably provided with a first movable pulley, a second movable pulley, a third movable pulley and a fourth movable pulley; the steel rope group comprises a first steel rope, a second steel rope and a third steel rope;

one end of the first steel rope is fixed on the first winch, the second end of the first steel rope sequentially bypasses the first movable pulley and the first fixed pulley, and the second end of the first steel rope is fixed on the lifting frame;

one end of the second steel rope is fixed on the second winch, the second end of the second steel rope sequentially bypasses the second movable pulley and the second fixed pulley, and the second end of the second steel rope is fixed on the lifting frame;

one end of the third steel rope is fixed on the third winch, the second end of the third steel rope sequentially bypasses the third movable pulley, the third fixed pulley, the fourth fixed pulley and the fourth movable pulley, and the second end of the third steel rope is fixed on the fourth winch.

Preferably, the lifting frame is also rotatably provided with a third guide wheel and a fourth guide wheel;

the second end of the third steel rope sequentially bypasses the third movable pulley, the third fixed pulley, the third guide wheel, the fourth fixed pulley and the fourth movable pulley, and the second end of the third steel rope is fixed on the fourth winch.

Preferably, the walking frame is slidably arranged on a sliding frame, and the walking frame can move on the sliding frame along the length direction of the main beam vertically;

the both sides of the sliding frame are provided with a plurality of walking wheels in a rotating way, and the walking wheels can roll along the main beam.

Preferably, a swing drive is fixedly arranged on the lifting frame, a lifting appliance is fixedly arranged on the swing drive, and the swing drive can drive the lifting appliance to rotate.

(III) beneficial effects

In the utility model, the assembling trolley moves on the guide post by utilizing the sliding device in the moving process of the assembling trolley in the tunnel, so that the supporting seat is abutted against the bottom surface of the tunnel, the weight of the main beam is born by at least two middle supporting leg assemblies, and the supporting seat in the middle supporting leg assemblies is not contacted with the installed inverted arch block, so that the movement of the main beam can not disturb the installed inverted arch block and can not influence the construction of the tunnel. In addition, in the process that the assembly trolley moves in the tunnel, the jacking rod is inserted into the side wall of the tunnel to absorb the reverse acting force generated by the main beam in the moving process, so that the main beam can stably move.

Drawings

FIG. 1 is an overall schematic view of a prefabricated inverted arch assembly trolley of the present utility model;

FIG. 2 is a schematic view of the structure of the intermediate leg assembly of the present utility model;

FIG. 3 is a schematic view of a first leg assembly according to the present utility model;

FIG. 4 is a schematic view of a second leg assembly according to the present utility model;

FIG. 5 is a schematic view of a main beam assembly according to the present utility model;

FIG. 6 is a schematic diagram of the crown block of the present utility model;

FIG. 7 is a schematic view showing the winding of a steel rope on a first hoist and a second hoist according to the present utility model;

fig. 8 is a schematic diagram showing the winding of the steel wire rope on the third and fourth winders in the present utility model.

[ reference numerals description ]

1: a main beam assembly; 11: a main beam; 12: an end beam;

2: a first leg assembly; 21: a support rod; 3: a second leg assembly; 31: a support block; 32: a connecting rod; 231: an outer sleeve; 232: an inner sleeve; 233: a second cylinder;

4: a middle leg assembly; 41: a sliding device; 411: a sliding sleeve; 412: an outer guide sleeve; 413: a driving device; 42: a guide post; 43: a main board; 44: a support base; 45: a pushing rod is tightly pressed; 46: a sliding plate; 461: a first cylinder;

5: a crown block; 51: a walking frame; 511: a first hoist; 512: a second hoist; 513: a third hoist; 514: a fourth hoist; 515: a first fixed pulley; 516: a second fixed pulley; 517: a third fixed pulley; 518: a fourth fixed pulley; 52: a first steel cord; 53: a second steel cord; 54: a third steel cord; 55: a sliding frame; 561: a walking wheel;

6: a lifting frame; 61: a first movable pulley; 62: a second movable pulley; 63: a third movable pulley; 64: a fourth movable pulley; 65: a third guide wheel; 66: a fourth guide wheel; 67: driving in a rotary manner; 68: and lifting appliance.

Detailed Description

The utility model will be better explained for understanding by referring to the following detailed description of the embodiments in conjunction with the accompanying drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model provides a prefabricated inverted arch assembling trolley, which comprises the following components: a main beam assembly 1, a first leg assembly 2, a second leg assembly 3, at least two intermediate leg assemblies 4, and at least one trolley 5;

the girder assembly 1 comprises two girders 11 which are parallel to each other; the first support leg assembly 2 is used for connecting two main beams 11, first ends of the two main beams 11 are fixedly connected with the first support leg assembly 2, and the first support leg assembly 2 is used for being quickly abutted with an inverted arch in a tunnel; the second support leg assembly 3 is used for connecting the two main beams 11, the second ends of the two main beams 11 are fixedly connected with the second support legs, and the second support leg assembly 3 is used for being abutted with the bottom of the tunnel;

the middle leg assembly 4 is slidably disposed on the two main beams 11, and the middle leg assemblies 4 each include: the sliding device 41, the guide post 42, the main board 43, the supporting seat 44 and the propping rod 45. The main board 43 is fixedly provided with a supporting seat 44 and a pair of guide posts 42, and the guide posts 42 are arranged along the vertical direction; the sliding device 41 is in sliding connection with the guide post 42, when the sliding device 41 slides along the guide post 42, the supporting seat 44 can be abutted with the bottom surface of the tunnel for supporting the main beam 11, and the sliding device 41 is also in sliding connection with the main beam 11; the tightening rod 45 is disposed on the main plate 43, and the tightening rod 45 can move along the length direction perpendicular to the main beam 11 for supporting the side wall of the tunnel; the trolley 5 is slidably mounted on the main beam 11, and the trolley 5 is used for hoisting the inverted arch.

In the technical scheme of the utility model, the main beam 11 is supported by respectively installing the first supporting leg component 2 and the second supporting leg component 3 at two ends of the main beam 11, and then the inverted arch block is hoisted by utilizing the trolley 5 and conveyed to the corresponding position, so that the assembly of the inverted arch block is completed. When the main beam 11 needs to move, the sliding device 41 is driven to move upwards, so that the supporting seat 44 is abutted against the bottom surface of the tunnel, then the tightening rod 45 is adjusted, so that the tightening rod 45 is inserted into the side wall of the tunnel, at the moment, the main beam 11 is supported by the sliding device 41, and then the main beam 11 is driven to move in the sliding device 41, so that the movement of the assembly trolley in the tunnel is completed. In the process of moving the assembly trolley in the tunnel, the sliding device 41 is utilized to move on the guide post 42, so that the supporting seat 44 is abutted against the bottom surface of the tunnel, the weight of the main beam 11 is borne by the at least two middle support leg assemblies 4, and at the moment, the supporting seat 44 in the middle support leg assemblies 4 is not contacted with the installed inverted arch, so that the movement of the main beam 11 can not disturb the installed inverted arch and can not influence the construction of the tunnel. In addition, in the process of moving the assembly trolley in the tunnel, the jacking rod 45 is inserted into the side wall of the tunnel to absorb the reverse acting force generated by the main beam 11 in the moving process, so that the main beam 11 can move stably. In a preferred embodiment, the movement of the slide 41 between the guide post 42 and the relative displacement between the slide 41 and the main beam 11 may be driven by a hydraulic ram or by a motor in cooperation with a screw nut. The middle leg assembly 4 can also slide on the main beam 11 by the sliding means 41 when the support seat 44 in the middle leg assembly 4 is not in abutment with the floor of the tunnel.

Further, the sliding device 41 includes a sliding sleeve 411, an outer guide sleeve 412, and a driving device 413. The sliding sleeve 411 is fixedly arranged on the outer guide sleeve 412, the sliding sleeve 411 is in sliding connection with the main beam 11, the outer guide sleeve 412 is slidably arranged on the guide post 42, one end of the driving device 413 is fixed on the main beam 11, and the other end of the driving device 413 is fixed on the sliding sleeve 411. The main beam 11 or the sliding sleeve 411 is driven by a driving device 413, preferably a hydraulic cylinder, so that a relative displacement is generated between the main beam 11 and the sliding sleeve 411.

Further, the intermediate leg assembly 4 further includes a slide plate 46, the slide plate 46 being slidably mounted on the main plate 43, the slide plate 46 being movable on the main plate 43 in a direction perpendicular to the main beam 11. The sliding plate 46 can be driven by a hydraulic cylinder to move on the main plate 43, and the sliding plate 46 is arranged on the main plate 43 in a sliding manner, so that on one hand, the distance between two sliding sleeves 411 on the same main plate 43 can be adjusted, and on the other hand, the two sliding sleeves 411 can be respectively arranged on the corresponding main beams 11, on the other hand, the positions of the supporting seats 44 along the direction perpendicular to the main beams 11 can be adjusted by adjusting the displacement between the main plate 43 and the sliding plate 46, and as long as the positions of the supporting seats 44 in different middle leg assemblies along the direction perpendicular to the main beams 11 are different, the main beams 11 can be deflected for a certain angle to advance, and then the assembly of the upward arches can be carried out in a tunnel with a certain curvature.

The guide post 42 is fixed on the sliding plate 46, a first oil cylinder 461 is arranged on the sliding plate 46, one end of the first oil cylinder 461 is fixed on the outer guide sleeve 412, the first oil cylinder 461 can drive the outer guide sleeve 412 to slide, and in the scheme, the outer guide sleeve 412 is driven to slide on the guide post 42 by the first oil cylinder 461.

In a preferred embodiment, the first leg assembly 2 and the second leg assembly 3 each include a pair of outer sleeves 231 and a pair of inner sleeves 232; the outer sleeves 231 are in one-to-one correspondence with the main beams 11, the outer sleeves 231 are fixedly arranged on the main beams 11, the inner sleeves 232 are slidably arranged in the outer sleeves 231, second oil cylinders 233 are fixedly arranged on the outer sleeves 231, one ends of the second oil cylinders 233 are fixedly arranged with the inner sleeves 232, and the second oil cylinders 233 can drive the inner sleeves 232 to move in the vertical direction; one end of the inner sleeve 232 in the first leg assembly 2 is fixedly provided with a support bar 21, the first fixing of the inner sleeve 232 in the second leg assembly 3 is provided with a support block 31, and a connecting rod 32 is further provided between the two support blocks 31, the connecting rod 32 being used for connecting the two support blocks 31. The first leg assembly 2 and the second leg assembly 3 are capable of supporting the main beam 11 when the trolley 5 is lifting the overhead arch.

An end beam 12 is arranged between the two main beams 11, the end beam 12 is used for connecting the two main beams 11, and the end beams 12 are arranged at two ends of the main beams 11.

Further, the carriage 5 includes a traveling frame 51 and a lifting frame 6. The walking frame 51 is slidably mounted on the main beam 11, a winch unit is arranged on the walking frame 51, the winch unit is connected with the lifting frame 6 through a steel rope, and the winch can drive the lifting frame 6 to move in the vertical direction.

The winch group includes a first winch 511, a second winch 512, a third winch 513, and a fourth winch 514 all provided on the traveling frame 51; the traveling frame 51 is rotatably provided with a first fixed pulley 515, a second fixed pulley 516, a third fixed pulley 517, and a fourth fixed pulley 518.

The lifting frame 6 is rotatably provided with a first movable pulley 61, a second movable pulley 62, a third movable pulley 63 and a fourth movable pulley 64; the steel cord set comprises a first steel cord 52, a second steel cord 53 and a third steel cord 54;

one end of the first steel rope 52 is fixed on the first hoist 511, the second end of the first steel rope 52 sequentially passes around the first movable pulley 61 and the first fixed pulley 515, and the second end of the first steel rope 52 is fixed on the lifting frame 6;

one end of the second steel rope 53 is fixed on the second hoist 512, the second end of the second steel rope 53 sequentially passes around the second movable pulley 62 and the second fixed pulley 516, and the second end of the second steel rope 53 is fixed on the lifting frame 6;

one end of the third wire rope 54 is fixed to the third hoist 513, and the second end of the third wire rope 54 sequentially passes around the third movable sheave 63, the third fixed sheave 517, the fourth fixed sheave 518, and the fourth movable sheave 64, and the second end of the third wire rope 54 is fixed to the fourth hoist 514.

In the technical scheme of the application, the first winch 511 drives the first movable pulley 61 to move through the first steel rope 52, and the first movable pulley 61 can drive the lifting frame 6 to move, so that the first movable pulley 61 forms a first lifting point on the lifting frame 6; the second hoist 512 drives the second movable pulley 62 to move through the second steel rope 53, and the second movable pulley 62 can drive the lifting frame 6 to move, and the second movable pulley 62 forms a second lifting point on the lifting frame 6. The third hoist 513 and the fourth hoist 514 drive the third movable pulley 63 and the fourth movable pulley 64 to move by one wire (the third wire 54), and the third movable pulley 63 and the fourth movable pulley 64 can be regarded as forming a third suspension point on the hoisting frame 6 because the third movable pulley 63 and the fourth movable pulley 64 are driven by the same wire. Because a plane can be confirmed to the three-point, so in the technical scheme of this application, can drive hoisting frame 6 motion through four hoist simultaneous movement, and then make hoisting frame 6 can promote the arch facing, because the third hoisting point is that third hoist 513 and fourth hoist 514 are promoted through the cooperation of third steel cable 54, this is compared with the hoisting through single hoist in prior art, hoisting device's lifting power in this application is higher, and the load is higher.

The lifting frame 6 is also rotatably provided with a third guide wheel 65 and a fourth guide wheel 66; the second end of the third wire rope 54 passes around the third movable sheave 63, the third fixed sheave 517, the third guide sheave 65, the fourth guide sheave 66, the fourth fixed sheave 518, and the fourth movable sheave 64 in this order, and the second end of the third wire rope 54 is fixed to the fourth hoist 514.

Finally, the walking frame 51 is slidably arranged on the sliding frame 55, and the walking frame 51 can move on the sliding frame 55 along the length direction vertical to the main beam 11; a plurality of travelling wheels 551 are rotatably arranged on two sides of the sliding frame 55, and the travelling wheels 551 can roll along the main beam 11. The lifting frame 6 is fixedly provided with a rotary drive 67, the rotary drive 67 is fixedly provided with a lifting appliance 68, and the rotary drive 67 can drive the lifting appliance 68 to rotate.

It should be understood that the above description of the specific embodiments of the present utility model is only for illustrating the technical route and features of the present utility model, and is for enabling those skilled in the art to understand the present utility model and implement it accordingly, but the present utility model is not limited to the above-described specific embodiments. All changes or modifications that come within the scope of the appended claims are intended to be embraced therein.

Claims (10)

1. The utility model provides a platform truck is assembled to prefabricated inverted arch which characterized in that, platform truck is assembled to prefabricated inverted arch includes: the main beam assembly (1), a first support leg assembly (2), a second support leg assembly (3), at least two middle support leg assemblies (4) and at least one trolley (5);

the main beam assembly (1) comprises two main beams (11) which are parallel to each other;

the first support leg assembly (2) is used for connecting two main beams (11), first ends of the two main beams (11) are fixedly connected with the first support leg assembly (2), and the first support leg assembly (2) is used for being quickly abutted with an inverted arch in a tunnel; the second support leg assembly (3) is used for connecting two main beams (11), second ends of the two main beams (11) are fixedly connected with the second support legs, and the second support leg assembly (3) is used for being abutted to the bottom of a tunnel;

the middle leg assembly (4) is slidably arranged on the two main beams (11), and the middle leg assemblies (4) comprise: the sliding device (41), the guide post (42), the main board (43), the supporting seat (44) and the jacking rod (45);

the main board (43) is fixedly provided with the supporting seat (44) and the pair of guide posts (42), and the guide posts (42) are arranged along the vertical direction; the sliding device (41) is in sliding connection with the guide post (42), the supporting seat (44) can be abutted against the bottom surface of the tunnel for supporting the main beam (11) when the sliding device (41) slides along the guide post (42), and the sliding device (41) is also in sliding connection with the main beam (11); the jacking rod (45) is arranged on the main board (43), and the jacking rod (45) can move along the length direction vertical to the main beam (11) so as to be used for supporting the side wall of the tunnel;

the trolley (5) is slidably mounted on the main beam (11), and the trolley (5) is used for hoisting the inverted arch.

2. The prefabricated inverted arch assembly trolley according to claim 1, wherein the sliding device (41) comprises a sliding sleeve (411), an outer guide sleeve (412) and a driving device (413);

the sliding sleeve (411) is fixedly arranged on the outer guide sleeve (412), the sliding sleeve (411) is in sliding connection with the main beam (11), the outer guide sleeve (412) is slidably arranged on the guide post (42), one end of the driving device (413) is fixed on the main beam (11), and the other end of the driving device (413) is fixed on the sliding sleeve (411).

3. The prefabricated inverted arch assembly trolley of claim 2, wherein the intermediate leg assembly (4) further comprises a slide plate (46), the slide plate (46) being slidably mounted on the main plate (43), the slide plate (46) being movable on the main plate (43) in a direction perpendicular to the main beam (11);

the guide post (42) is fixed on the sliding plate (46), a first oil cylinder (461) is arranged on the sliding plate (46), one end of the first oil cylinder (461) is fixed on the outer guide sleeve (412), and the first oil cylinder (461) can drive the outer guide sleeve (412) to slide along the guide post (42).

4. A prefabricated inverted arch pallet according to any of claims 1-3, wherein the first leg assembly (2) and the second leg assembly (3) each comprise a pair of outer sleeves (231) and a pair of inner sleeves (232);

the outer sleeves (231) are in one-to-one correspondence with the main beams (11), the outer sleeves (231) are fixedly arranged on the main beams (11), the inner sleeves (232) are slidably arranged in the outer sleeves (231), second oil cylinders (233) are fixedly arranged on the outer sleeves (231), one ends of the second oil cylinders (233) are fixedly arranged on the inner sleeves (232), and the second oil cylinders (233) can drive the inner sleeves (232) to move in the vertical direction;

one end of the inner sleeve (232) in the first supporting leg assembly (2) is fixedly provided with a supporting rod (21), the first end of the inner sleeve (232) in the second supporting leg assembly (3) is fixedly provided with a supporting block (31), a connecting rod (32) is further arranged between the two supporting blocks (31), and the connecting rod (32) is used for connecting the two supporting blocks (31).

5. A prefabricated inverted arch assembly trolley according to any one of claims 1-3, characterized in that an end beam (12) is arranged between two of said main beams (11), said end beam (12) being adapted to connect two of said main beams (11), and said end beams (12) being arranged at both ends of said main beams (11).

6. A prefabricated inverted arch assembly trolley according to any one of claims 1-3, characterized in that the trolley (5) comprises a travelling frame (51) and a lifting frame (6);

the walking frame (51) is slidably mounted on the main beam (11), a winch unit is arranged on the walking frame (51), the winch unit is connected with the lifting frame (6) through a steel rope set, and the winch can drive the lifting frame (6) to move in the vertical direction.

7. The prefabricated inverted arch splicing trolley according to claim 6, wherein the winch group includes a first winch (511), a second winch (512), a third winch (513), and a fourth winch (514) all provided on the traveling frame (51); the walking frame (51) is rotatably provided with a first fixed pulley (515), a second fixed pulley (516), a third fixed pulley (517) and a fourth fixed pulley (518);

the lifting frame (6) is rotatably provided with a first movable pulley (61), a second movable pulley (62), a third movable pulley (63) and a fourth movable pulley (64); the set of steel cords comprises a first steel cord (52), a second steel cord (53) and a third steel cord (54);

one end of the first steel rope (52) is fixed on the first winch (511), the second end of the first steel rope (52) sequentially bypasses the first movable pulley (61) and the first fixed pulley (515), and the second end of the first steel rope (52) is fixed on the lifting frame (6);

one end of the second steel rope (53) is fixed on the second winch (512), the second end of the second steel rope (53) sequentially bypasses the second movable pulley (62) and the second fixed pulley (516), and the second end of the second steel rope (53) is fixed on the lifting frame (6);

one end of the third steel rope (54) is fixed on the third winch (513), the second end of the third steel rope (54) sequentially bypasses the third movable pulley (63), the third fixed pulley (517), the fourth fixed pulley (518) and the fourth movable pulley (64), and the second end of the third steel rope (54) is fixed on the fourth winch (514).

8. The prefabricated inverted arch assembling trolley according to claim 7, wherein the lifting frame (6) is further rotatably provided with a third guide wheel (65) and a fourth guide wheel (66);

the second end of the third steel rope (54) sequentially bypasses the third movable pulley (63), the third fixed pulley (517), the third guide wheel (65), the fourth guide wheel (66), the fourth fixed pulley (518) and the fourth movable pulley (64), and the second end of the third steel rope (54) is fixed on the fourth winch (514).

9. The prefabricated inverted arch assembling trolley according to claim 6, wherein a sliding frame (55) is slidably arranged on the walking frame (51), and the walking frame (51) can move on the sliding frame (55) along the length direction perpendicular to the main beam (11);

the two sides of the sliding frame (55) are respectively provided with a plurality of travelling wheels (551) in a rotating mode, and the travelling wheels (551) can roll along the main beam (11).

10. The prefabricated inverted arch assembling trolley according to claim 6, wherein a swing drive (67) is fixedly arranged on the lifting frame (6), a lifting appliance (68) is fixedly arranged on the swing drive (67), and the swing drive (67) can drive the lifting appliance (68) to rotate.