CN116040099A

CN116040099A - Building material conveying device for road bridge construction and use method thereof

Info

Publication number: CN116040099A
Application number: CN202310013605.3A
Authority: CN
Inventors: 王策; 信思源; 李楠; 沈义; 常我素; 刘宇; 徐晓娜
Original assignee: Heilongjiang College of Construction
Current assignee: Heilongjiang College of Construction
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-02

Abstract

A building material conveying device for road and bridge construction and a use method thereof belong to the field of building material conveying equipment. Comprises a bearing seat, two movable devices and a base; the base is placed in a trailer box of the truck, and the upper end of the base is provided with a power device and a supporting device; the bearing seat is positioned at the upper ends of the power device and the bearing device, and can rotate around the bearing device by being pushed by the power device; the two movable devices are respectively hinged to two sides of the bearing seat, and a gap is reserved between the two movable devices and the inner wall of the drag box. The utility model can not only avoid the property loss caused by the pipe fitting in the truck trailer penetrating the cab under the inertia state, but also can fix other residual pipe fittings according to the need when part of pipe fittings are dismounted, thereby avoiding the pipe fitting moving along with the action of friction force.

Description

Building material conveying device for road bridge construction and use method thereof

Technical Field

The utility model relates to a building material conveying device for road and bridge construction and a using method thereof, belonging to the field of building material conveying equipment.

Background

When the bridge is built, the guardrail is required to be installed to protect the safety of passing vehicles and pedestrians, and when the guardrail is installed, the pipe fitting required by the guardrail is required to be carried from a manufacturer, and due to the special pipe fitting, when the truck encounters emergency brake, the pipe fitting has extremely strong penetrating power under the action of inertia, and is easy to hurt a cab and a driver;

the utility model discloses a pipe fitting handling device, which comprises a first clamping jaw and a second clamping jaw which are folded to form a cylinder, wherein the tops of the first clamping jaw and the second clamping jaw are rotationally connected, the first clamping jaw and the second clamping jaw are opened and closed in a clamp shape, and baffle plates are fixedly assembled at openings at two ends of the cylinder surrounded by the first clamping jaw and the second clamping jaw; the pipe fitting handling device further comprises a supporting table, two supporting frames are arranged on the supporting table, U-shaped grooves with opposite positions are formed in the upper portions of the two supporting frames, and the bottoms of the U-shaped grooves are separated from the supporting table.

Although the pipe fitting can be clamped by the first clamping jaw and the second clamping jaw which can be opened and closed, the pipe fitting can be carried in batches by matching with the track crane and the electric hoist at the top of the factory, so that the carrying efficiency of the pipe fitting is greatly improved, and the problem of factory area waste caused by ground carrying of the pipe fitting is solved; the axial position of the pipe fitting is fixed through the baffle, so that the pipe fitting is prevented from slipping, the positioning is stable, the structure is simple, the use is convenient, and the popularization is convenient; but it is not possible to avoid the situation that the pipe runs through the cab under inertia during truck handling.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a building material conveying device for road and bridge construction and a using method thereof.

The utility model achieves the above purpose, adopts the following technical scheme:

the building material carrying device for road and bridge construction comprises a bearing seat, two movable devices and a base; the base is placed in a trailer box of the truck, and the upper end of the base is provided with a power device and a supporting device; the bearing seat is positioned at the upper ends of the power device and the bearing device, and can rotate around the bearing device by being pushed by the power device; the two movable devices are respectively hinged to two sides of the bearing seat, and a gap is reserved between the two movable devices and the inner wall of the drag box.

The application method of the building material conveying device for road and bridge construction comprises the following steps:

step one: stacking the pipe fitting on the upper end of the connecting plate;

step two: rotating the threaded rod I and the threaded rod II, inserting the threaded rod II into the pipe fitting at the uppermost end, then rotating the circular ring to the joint of the threaded rod I and the threaded rod II, and then continuing to rotate the threaded rod I to enable the threaded rod I to enter the pipe fitting;

step three: screwing the rotary drum into the threaded hole through threads, and embedding the connecting block into the clamping groove; then the bearing seat, the two movable devices and the base are hoisted on the lug plate through a hoisting device hook and placed in the drag box;

step four: and starting the hydraulic cylinder to enable one end of the bearing seat to tilt, then rotating the screw rod to enable the screw rod to abut against the ball body, and finally switching on a power supply to enable the electromagnet I to be communicated with the electromagnet II.

Compared with the prior art, the utility model has the beneficial effects that: the utility model can not only avoid the property loss caused by the pipe fitting in the truck trailer penetrating the cab under the inertia state, but also can fix other residual pipe fittings according to the need when part of pipe fittings are dismounted, thereby avoiding the pipe fitting moving along with the action of friction force.

Drawings

Fig. 1 is a schematic view showing a state of a construction material carrying device for road and bridge construction of the present utility model placed in a drag box;

fig. 2 is a schematic view showing a state of the construction material carrying device for road and bridge construction of the present utility model placed in a trailer box when a truck walks;

FIG. 3 is a schematic view showing a state of the construction material conveying device for road and bridge construction of the present utility model when a pipe is removed;

fig. 4 is a schematic structural view of a building material conveying device for road and bridge construction according to the present utility model;

FIG. 5 is a schematic view of the connection structure of the bearing seat and the movable device of the building material carrying device for road and bridge construction;

fig. 6 is a plan view of a carriage of the building material conveying device for road and bridge construction of the present utility model;

FIG. 7 is a schematic view of a movable apparatus of a construction material conveying apparatus for road and bridge construction according to the present utility model;

FIG. 8 is a side cross-sectional view of a movable plate of a building material handling apparatus for road and bridge construction according to the present utility model;

FIG. 9 is a top view of a stop device of the building material handling apparatus for road and bridge construction of the present utility model;

fig. 10 is a schematic view of a base of a building material conveying device for road and bridge construction according to the present utility model;

FIG. 11 is a schematic view showing the connection structure of a base plate, a power unit and a carrying unit of a building material transporting device for road and bridge construction according to the present utility model;

FIG. 12 is a schematic view showing the structure of a connecting rod I of the building material conveying device for road and bridge construction;

fig. 13 is a schematic structural view of a connecting rod ii of a building material conveying device for road and bridge construction according to the present utility model.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are all within the protection scope of the present utility model.

The first embodiment is as follows: as shown in fig. 1 to 13, this embodiment describes a building material transporting device for road and bridge construction, which comprises a bearing seat 2, two movable devices 3 and a base 4; the base 4 is placed in the trailer box 1 of the truck, and a power device 45 and a supporting device 46 are arranged at the upper end of the base 4; the bearing seat 2 is positioned at the upper ends of the power device 45 and the bearing device 46, and the bearing seat 2 can rotate around the bearing device 46 by the pushing of the power device 45; the two movable devices 3 are respectively hinged to two sides of the bearing seat 2, and a gap is reserved between the two movable devices 3 and the inner wall of the drag box 1.

The second embodiment is as follows: as shown in fig. 1-13, this embodiment is further described for the first embodiment, the base 4 further includes a bottom plate 411, two sliding grooves 412 are provided at an upper end of the bottom plate 411, a power device 45 and a bearing device 46 are provided between the two sliding grooves 412, a limiting U-shaped buckle plate 43 fixedly connected with the power device 45 and the bearing device 46 and reversely buckled at an upper end of the bottom plate 411 is provided between the power device 45 and the bearing device 46, a battery block 44 is fixedly connected to an upper end of the U-shaped buckle plate 43, and a connecting rod i 42 and a connecting rod ii 47 slidably matched with the gap between the U-shaped buckle plate 43 and the bottom plate 411 are provided in the gap.

And a third specific embodiment: as shown in fig. 1-13, this embodiment is further described with respect to the first embodiment, and the power device 45 includes a hydraulic cylinder 451, a connecting block 452, and a drum 453; the fixed end of the hydraulic cylinder 451 is hinged to the upper end of the bottom plate 411, and the free end of the hydraulic cylinder 451 is hinged to a connecting block 452; the connecting block 452 is connected in the rotary drum 453 through a bearing, and threads are arranged on the outer circular surface of the rotary drum 453.

The specific embodiment IV is as follows: as shown in fig. 1-13, the present embodiment is further described with respect to the first embodiment, and the carrying device 46 includes two support plates 461, a gear i 462, a shaft i 463, a strut 464, a fixture 465, a gear ii 466, and a shaft ii 467; the two support plates 461 are fixedly connected to the upper end of the bottom plate 411, the shaft lever I463 is connected between the two support plates 461 through a bearing, the gear I462 is connected to the shaft lever I463 in a key manner, the supporting rod 464 is fixedly connected to the shaft lever I463, and the clamping block 465 is fixedly connected to the upper end of the shaft lever 464; the shaft lever II 467 is connected between the two support plates 461 through a bearing, the gear II 466 meshed with the gear I462 is connected on the shaft lever II 467 in a key manner, and tooth grooves are formed in the outer circular surface of the shaft lever II 467.

Fifth embodiment: as shown in fig. 1-13, this embodiment is further described with respect to the first embodiment, where the connecting rod i 42 includes a rod body i 421; the rod body I421 is in sliding fit with the U-shaped buckle plate 43 and the bottom plate 411, an electromagnet I423 is fixedly connected to one end of the rod body I421, which is close to the U-shaped buckle plate 43, and a vertical groove I422 is formed in one end of the rod body I421, which is far away from the U-shaped buckle plate 43; the connecting rod II 47 comprises a rod body II 471; the rod body II 471 is in sliding fit with the gap between the U-shaped buckle plate 43 and the bottom plate 411, an electromagnet II 473 is fixedly connected to one end of the rod body II 471, which is close to the U-shaped buckle plate 43, and a vertical groove II 472 is formed in one end of the rod body II 471, which is far away from the U-shaped buckle plate 43; the lower end of the rod body II 471 is provided with a rectangular groove 474, and the lower end of the top wall of the rectangular groove 474 is provided with teeth meshed with the tooth grooves on the shaft rod II 467; the electromagnet I423 and the electromagnet II 473 are electrically connected with the battery block 44.

Specific embodiment six: as shown in fig. 1-13, this embodiment is further described with respect to the first embodiment, where the carrying seat 2 includes two side plates 21 and a connecting plate 22; two side plates 21 are symmetrically and fixedly connected to the side surfaces of the connecting plate 22, and an ear plate 25 is fixedly connected to the upper end of each side plate 21; the lower extreme of connecting plate 22 is equipped with the screw hole 23 with rotary drum 453 screw thread fit, and the lower extreme of connecting plate 22 still is equipped with the draw-in groove 24 with fixture block 465 sliding fit.

Seventh embodiment: as shown in fig. 1-13, this embodiment is further described with respect to the first embodiment, and each of the movable devices 3 includes a movable plate 31 and a limiting device 32.

Eighth embodiment: as shown in fig. 1-13, this embodiment is further described with respect to the first embodiment, where the movable plate 31 includes a plate body 311 and a stop lever 316; the lower end of the plate body 311 is hinged on the connecting plate 22, a plurality of sliding ways I312 penetrating through the plate body 311 are arranged on the side face of the plate body 311, sliding ways II 313 are symmetrically arranged on the inner wall of the sliding ways I312, a plurality of vertical thread vertical holes 315 are arranged at the top end of the plate body 311, and each thread vertical hole 315 is communicated with the corresponding sliding way I312; a vertical slideway III 314 is arranged at the bottom end of the plate body 311, and the slideway III 314 is in sliding fit with a limiting rod 316; the limit rod 316 is in sliding fit with the chute 412, and the limit rod 316 is also in sliding fit with the vertical chute I422 or the vertical chute II 472.

Detailed description nine: as shown in fig. 1-13, this embodiment is further described with reference to the first embodiment, the limiting device 32 includes a screw 321, a ball 322, a threaded rod i 323, a rubber pad 324, a ring 325, a connecting shaft 327, a rotating rod 328, a threaded rod ii 329, and a slider 3210; the ball 322 is in sliding fit with the slide way I312, the outer spherical surface of the ball 322 is symmetrically and fixedly connected with a sliding block 3210, the sliding block 3210 is cylindrical, and the sliding block 3210 is in sliding fit with the slide way II 313; the ball body 322 is also provided with a threaded hole, the threaded rod I323 and the threaded rod II 329 are in threaded fit with the threaded hole, the other end of the threaded rod I323 is provided with a connecting groove 326, one end of the threaded rod II 329 is fixedly connected with a rotating rod 328, the rotating rod 328 is sleeved on a connecting shaft 327, and the connecting shaft 327 is fixedly connected in the connecting groove 326; the circular ring 325 is in threaded fit with the threaded rod I323 and the threaded rod II 329, and the outer circular surface of the circular ring 325 is fixedly connected with a rubber pad 324; the screw 321 is in threaded engagement with the threaded vertical hole 315.

Detailed description ten: as shown in fig. 1 to 13, the present embodiment describes a method for using a building material transporting apparatus for road and bridge construction, characterized in that: the using method comprises the following steps:

step one: stacking the pipe on the upper end of the connection plate 22;

step two: rotating the threaded rods I323 and II 329, inserting the threaded rod II 329 into the pipe fitting at the uppermost end, then rotating the ring 325 to the joint of the threaded rods I323 and II 329, and then continuing to rotate the threaded rod I323 to enable the threaded rod I323 to enter the pipe fitting;

step three: screwing the rotary drum 453 into the threaded hole 23, and inserting the fixture block 465 into the fixture groove 24; then the bearing seat 2, the two movable devices 3 and the base 4 are hoisted on the lug plates 25 through a hoisting device and placed in the drag box 1;

step four: the hydraulic cylinder 451 is started to enable one end of the bearing seat 2 to tilt, then the screw rod 321 is rotated to enable the bearing seat to abut against the ball 322, and finally the power supply is switched on, so that the electromagnet I423 and the electromagnet II 473 are communicated.

The working principle of the utility model is as follows: when the utility model is used, the pipe fitting is stacked at the upper end of the connecting plate 22 along the length direction of the connecting plate 22;

then the plate body 311 is rotated to a position perpendicular to the connecting plate 22 around a hinge at the joint with the connecting plate 22, then the threaded rods I323 and II 329 are rotated, the threaded rod II 329 is inserted into the pipe fitting at the uppermost end, then the circular ring 325 is rotated to the joint of the threaded rods I323 and II 329, and then the threaded rod I323 is continuously rotated to enable the threaded rod I323 to enter the pipe fitting; the rubber pad 324 is abutted against the inner wall of the pipe fitting, so that the friction force is increased;

screwing the rotary drum 453 into the threaded hole 23, and embedding the clamping block 465 into the clamping groove 24, wherein the clamping block 465 is in interference fit with the clamping groove 24; then the bearing seat 2, the two movable devices 3 and the base 4 are hoisted on the lug plates 25 through a hoisting device and placed in the drag box 1; the cross-sectional area of the bottom plate 411 is the same as the inner bottom area of the truck trailer box 1, preventing the bottom plate 411 from rocking within the trailer box 1;

the hydraulic cylinder 451 is started, the hydraulic cylinder 451 stretches to drive the connecting block 452 and the rotary drum 453 to move together, and then drive the left end of the connecting plate 22 to tilt upwards (the left end of the connecting plate 22 is close to the truck head) in the state shown in fig. 1, the right end of the connecting plate 22 drives the clamping block 465, the supporting rod 464 and the shaft lever I463 to rotate, after the left end of the connecting plate 22 tilts upwards, the left end of the connecting plate 22 drives one movable device 3 to move upwards, the right end of the connecting plate 22 drives the other movable device 3 to move downwards, so that the two movable devices 3 form a height difference, and meanwhile, because the connecting plate 22 tilts, the inner pipe fitting also tilts, and because the limiting plate 316 at the lower end of the plate body 311 is always vertical to the bottom plate 411, the plate body 311 is still in a vertical state, the tilting of the connecting plate 22 also enables the horizontal spacing between the two ends of the connecting plate 22 to be smaller than the horizontal spacing when the connecting plate 22 is in the horizontal state, the two moving devices 3 are mutually close in the horizontal direction (meanwhile, when the connecting plate 22 rotates, the shaft lever I463 is driven to rotate, the shaft lever I463 drives the gear I462 to rotate, the gear I462 drives the gear II 466 to rotate, the shaft lever II 467 is further driven to rotate, the shaft lever II 467 drives the connecting rod II 47 to move towards the direction of the connecting rod I42 through teeth on the tooth slot, the limiting plate 316 on the two moving devices 3 slides in the corresponding sliding groove 412, the limiting plate 316 drives the connecting rod I42 and the connecting rod II 47 to mutually close through the vertical groove I422 and the vertical groove II 472, the electromagnet I423 and the electromagnet II 473 are attached, a power supply is started, the electromagnet I423 and the electromagnet II 473 are adsorbed together, after the pipe fitting is inclined, the threaded rod I323 and the threaded rod II 329 inside the uppermost pipe fitting are inclined, the threaded rod I323 drives the ball 322 to rotate, then, the screw 321 is rotated to abut against the upper end of the sphere 322 to prevent the sphere 322 from being displaced;

when the truck runs on a bumpy road section, as the threaded rods I323 and II 329 are positioned in the uppermost pipe fitting and the ball 322 is fixed by the threaded rod 321, the pipe fitting cannot be separated from the device in the process of running on the bumpy road section, when the truck is braked suddenly, one end of the pipe fitting, which is close to the cab of the truck, on the connecting plate 22 is inclined upwards, the pipe fitting moves obliquely upwards under the inertia effect, meanwhile, as the threaded rods I323 and II 329 are positioned in the uppermost pipe fitting, the rubber cushion 324 is abutted against the inner wall of the uppermost pipe fitting, friction exists between the uppermost pipe fitting and the rubber cushion, the downward pressure is given to the uppermost pipe fitting by the limiting device 32, the friction between the pipe fittings is further increased, the inertia generated when the truck brakes suddenly is counteracted by the friction, and the pipe fitting is prevented from puncturing the cab under the inertia effect, so that loss is caused;

after arriving at the place, the utility model is disassembled by the lifting device, then the rotary drum 453 is rotated to separate the base 4 from the bearing seat 2, then the bearing seat 2 is placed on the ground by the lifting device, in the process, the plate body 311 is separated from the limiting plate 316 and placed on the ground, then the circular ring 325 is rotated to the threaded rod II 329, the inclination degree of the plate body 311 is adjusted according to the number of the tubes to be disassembled, then the threaded rod II 329 and the circular ring 325 and the rubber pad 324 thereon are inserted into the inner wall of the uppermost tube which is not required to be disassembled, so as to prevent the tube positioned below from being displaced under the friction force in the process of transporting the tube above, thereby leading the tube ends to be uneven, and avoiding affecting the health of workers if workers don't pay attention to and easily collide with the protruding tube ends.

Claims

1. The utility model provides a road bridge construction is with building materials handling device which characterized in that: comprises a bearing seat (2), two movable devices (3) and a base (4); the base (4) is placed in a trailer box (1) of the truck, and a power device (45) and a supporting device (46) are arranged at the upper end of the base (4); the bearing seat (2) is positioned at the upper ends of the power device (45) and the bearing device (46), and the bearing seat (2) can rotate around the bearing device (46) by the pushing of the power device (45); the two movable devices (3) are respectively hinged to two sides of the bearing seat (2), and a gap is reserved between the two movable devices (3) and the inner wall of the drag box (1).

2. The building material handling apparatus for road and bridge construction according to claim 1, wherein: the base (4) further comprises a bottom plate (411), two sliding grooves (412) are formed in the upper end of the bottom plate (411), a power device (45) and a bearing device (46) are arranged between the two sliding grooves (412), a limiting U-shaped buckle plate (43) which is fixedly connected with the upper end of the bottom plate (411) and is reversely buckled on the upper end of the bottom plate (411) is arranged between the power device (45) and the bearing device (46), a battery block (44) is fixedly connected to the upper end of the U-shaped buckle plate (43), and a connecting rod I (42) and a connecting rod II (47) which are in sliding fit with the gap are arranged in the gap between the U-shaped buckle plate (43) and the bottom plate (411).

3. The building material handling apparatus for road and bridge construction according to claim 2, wherein: the power device (45) comprises a hydraulic cylinder (451), a connecting block (452) and a rotary drum (453); the fixed end of the hydraulic cylinder (451) is hinged to the upper end of the bottom plate (411), and the free end of the hydraulic cylinder (451) is hinged to a connecting block (452); the connecting block (452) is connected in the rotary drum (453) through a bearing, and threads are arranged on the outer circular surface of the rotary drum (453).

4. A building material handling apparatus for road and bridge construction according to claim 3, wherein: the bearing device (46) comprises two support plates (461), a gear I (462), a shaft lever I (463), a supporting rod (464), a clamping block (465), a gear II (466) and a shaft lever II (467); the two support plates (461) are fixedly connected to the upper end of the bottom plate (411), the shaft lever I (463) is connected between the two support plates (461) through a bearing, the gear I (462) is connected to the upper key of the shaft lever I (463), the supporting rod (464) is fixedly connected to the shaft lever I (463), and the clamping block (465) is fixedly connected to the upper end of the shaft lever (464); the shaft lever II (467) is connected between the two supporting plates (461) through a bearing, a gear II (466) meshed with the gear I (462) is connected to the shaft lever II (467) in a key manner, and tooth grooves are formed in the outer circle surface of the shaft lever II (467).

5. The building material handling apparatus for road and bridge construction according to claim 4, wherein: the connecting rod I (42) comprises a rod body I (421); the rod body I (421) is in sliding fit with the gap between the U-shaped buckle plate (43) and the bottom plate (411), an electromagnet I (423) is fixedly connected to one end, close to the U-shaped buckle plate (43), of the rod body I (421), and a vertical groove I (422) is formed in one end, far away from the U-shaped buckle plate (43), of the rod body I (421); the connecting rod II (47) comprises a rod body II (471); the rod body II (471) is in sliding fit with the gap between the U-shaped buckle plate (43) and the bottom plate (411), an electromagnet II (473) is fixedly connected to one end, close to the U-shaped buckle plate (43), of the rod body II (471), and a vertical groove II (472) is formed in one end, far away from the U-shaped buckle plate (43), of the rod body II (471); the lower end of the rod body II (471) is provided with a rectangular groove (474), and the lower end of the top wall of the rectangular groove (474) is provided with teeth meshed with the tooth grooves on the shaft rod II (467); the electromagnet I (423) and the electromagnet II (473) are electrically connected with the battery block (44).

6. The building material handling apparatus for road and bridge construction according to claim 5, wherein: the bearing seat (2) comprises two side plates (21) and a connecting plate (22); two side plates (21) are symmetrically and fixedly connected to the side surfaces of the connecting plate (22), and an ear plate (25) is fixedly connected to the upper end of each side plate (21); the lower extreme of connecting plate (22) is equipped with screw hole (23) with rotary drum (453) screw thread fit, and the lower extreme of connecting plate (22) still is equipped with draw-in groove (24) with fixture block (465) sliding fit.

7. The building material handling apparatus for road and bridge construction according to claim 6, wherein: each movable device (3) comprises a movable plate (31) and a limiting device (32).

8. The building material handling apparatus for road and bridge construction according to claim 7, wherein: the movable plate (31) comprises a plate body (311) and a limiting rod (316); the lower end of the plate body (311) is hinged to the connecting plate (22), a plurality of sliding ways I (312) penetrating through the plate body (311) are arranged on the side face of the plate body (311), sliding ways II (313) are symmetrically arranged on the inner wall of the sliding ways I (312), a plurality of vertical thread vertical holes (315) are formed in the top end of the plate body (311), and each thread vertical hole (315) is communicated with the corresponding sliding way I (312); the bottom end of the plate body (311) is provided with a vertical slideway III (314), and the slideway III (314) is in sliding fit with a limiting rod (316); the limiting rod (316) is in sliding fit with the sliding groove (412), and the limiting rod (316) is also in sliding fit with the vertical groove I (422) or the vertical groove II (472).

9. The building material handling apparatus for road and bridge construction according to claim 8, wherein: the limiting device (32) comprises a screw rod (321), a ball body (322), a threaded rod I (323), a rubber pad (324), a circular ring (325), a connecting shaft (327), a rotating rod (328), a threaded rod II (329) and a sliding block (3210); the ball body (322) is in sliding fit with the slide way I (312), the outer spherical surface of the ball body (322) is symmetrically and fixedly connected with a sliding block (3210), the sliding block (3210) is cylindrical, and the sliding block (3210) is in sliding fit with the slide way II (313); the ball body (322) is also provided with a threaded hole, the threaded rod I (323) and the threaded rod II (329) are in threaded fit with the threaded hole, the other end of the threaded rod I (323) is provided with a connecting groove (326), one end of the threaded rod II (329) is fixedly connected with a rotating rod (328), the rotating rod (328) is sleeved on a connecting shaft (327), and the connecting shaft (327) is fixedly connected in the connecting groove (326); the circular ring (325) is in threaded fit with the threaded rod I (323) and the threaded rod II (329), and a rubber pad (324) is fixedly connected to the outer circular surface of the circular ring (325); the screw rod (321) is in threaded fit with the threaded vertical hole (315).

10. The method for using the building material carrying device for road and bridge construction according to claim 9, wherein: the using method comprises the following steps:

step one: stacking the pipe on the upper end of the connecting plate (22);

step two: rotating the threaded rod I (323) and the threaded rod II (329), inserting the threaded rod II (329) into the pipe fitting at the uppermost end, then rotating the circular ring (325) to the joint of the threaded rod I (323) and the threaded rod II (329), and then continuing to rotate the threaded rod I (323) to enable the threaded rod I (323) to enter the pipe fitting;

step three: screwing the rotary drum (453) into the threaded hole (23) through threads, and embedding the clamping block (465) into the clamping groove (24); then the bearing seat (2), the two movable devices (3) and the base (4) are hoisted on the lug plate (25) through a hoisting device, and are placed in the drag box (1);

step four: and starting the hydraulic cylinder (451) to enable one end of the bearing seat (2) to tilt, then rotating the screw rod (321) to enable the screw rod to be abutted against the ball body (322), and finally switching on a power supply to enable the electromagnet I (423) to be communicated with the electromagnet II (473).