Detachable and movable cantilever cast-in-place beam internal maintenance supporting trolley

Abstract

The utility model relates to the field of cantilever cast-in-place beam maintenance devices, and aims to solve the problems of high randomness and poor continuity when hanging basket cantilever cast-in-place box beam concrete is manually maintained. The detachable and movable cantilever cast-in-place beam internal maintenance supporting trolley comprises a chassis with idler wheels arranged at the bottom, a bottom frame is fixed to the top of the chassis, and the top of the bottom frame is connected with a top frame used for supporting a spraying pipeline. The bottom frame is provided with a connector connected with an external water supply pipeline, and the end is connected with a traction structure. The top frame and the bottom frame are detachably connected through a threaded connecting part, and an extending pipe can be connected between the bottom frame and the connecting base. The supporting rods of the top frame are provided with lifting hooks connected with the first maintenance pipes on the two sides, and second maintenance pipes are fixed to the tops of the supporting rods. The traction structure is composed of a locking plate and a pull rope, and anti-collision wheels are arranged on the two sides of the chassis. The device can effectively overcome the defects of manual maintenance, achieves comprehensive and stable maintenance, is detachable and convenient to move, and guarantees the construction quality and safety of the inner side of the cantilever cast-in-place beam.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of maintenance trolley, especially a detachable and movable cantilever cast-in-situ beam internal maintenance support trolley. BACKGROUND

[0002] With the rise of prestressed concrete continuous rigid frame bridge, cantilever cast-in-situ beam is widely used in high-speed railway, highway, municipal and other projects. However, the occurrence of box girder cracks will cause great harm to the bridge, especially the structural cracks caused by non-load factors, which are complex in cause and seriously harmful to the durability of the bridge structure and must be controlled. The thermal conductivity of concrete material is very poor, and under the action of temperature changes caused by various factors, a considerable deformation and stress will occur in the prestressed concrete bridge structure. With the gradual increase of the span of continuous rigid frame bridge, the requirement of high strength of concrete for the box girder structure makes the grade of concrete used higher and higher, and the volume and amount also larger and larger. With the application of high-performance concrete, construction and maintenance work becomes more and more important. Generally, in order to ensure the maintenance quality, the concrete surface should always be in a wet state rather than a dry-wet alternating state.

[0003] At present, in the cantilever cast-in-situ box girder concrete maintenance of hanging basket, the current process method has less cantilever beam maintenance content, mostly artificial watering maintenance by covering water storage materials. Artificial maintenance has the disadvantages of great randomness and poor continuity, which leads to insufficient cantilever cast-in-situ box girder segment concrete maintenance, causing surface cracks of different degrees, and even deep cracks, affecting the structure stress and reducing the service life of the concrete structure.

[0004] Therefore, aiming at the construction characteristics of cantilever method cast-in-situ beam, a detachable and movable cantilever cast-in-situ beam internal maintenance trolley device is developed, which has important value for ensuring the construction quality and safety of cantilever cast-in-situ beam inside. SUMMARY

[0005] The technical problem to be solved by the utility model is the great randomness and poor continuity of artificial maintenance.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme of a detachable and movable cantilever cast-in-situ beam internal maintenance support trolley, which comprises a bottom disc provided with rollers, a bottom frame fixed on the top of the bottom disc, a top frame connected on the top of the bottom frame for supporting the spray pipeline, a connecting joint for connecting the external water supply pipeline is fixed on the bottom frame, and a traction structure is connected at the end of the bottom frame.

[0007] Preferably, the top frame is provided with a threaded hole at the bottom, and a connecting seat is threadedly connected, the bottom of the connecting seat is provided with a connecting disc, the top of the bottom frame is provided with an adapter disc, and a connecting hole for the bolt is arranged between the connecting disc and the adapter disc.

[0008] Preferably, an extension pipe is connected between the base frame and the connecting seat, the top end of the extension pipe is threadedly connected with the bottom of the top frame, and the bottom end of the extension pipe is provided with a threaded hole and is threadedly connected with the top end of the connecting seat.

[0009] Preferably, the extension pipe is of a telescopic structure and comprises an inner pipe and an outer pipe telescopically sleeved with each other, and the inner pipe and the outer pipe are both provided with positioning holes at equal intervals for inserting the positioning pins.

[0010] Preferably, the top frame comprises a support rod horizontally fixedly arranged, the support rod is provided with hooks at equal intervals along the length direction at the bottom, the spray pipe comprises first curing pipes distributed on both sides and a second curing pipe fixedly arranged at the top of the top frame, the first curing pipes are connected with the hooks, and the first curing pipes and the second curing pipe are both provided with nozzles at equal intervals.

[0011] Preferably, a limiting block is hingedly connected at the opening of the hook, a torsional spring is sleeved on the mounting shaft of the limiting block, and the free end of the limiting block is buckled on the first curing pipe when the first curing pipe is connected with the hook.

[0012] Preferably, the support rod is arranged at the middle part of the top frame, the support rods are arranged in pairs, the nozzles of the two first curing pipes are respectively directed towards the top of both sides of the top frame, the nozzle of the second curing pipe is arranged at the top, the end parts of the support rods are vertically and fixedly connected with fixing plates, and the second curing pipe is connected with the fixing plates.

[0013] Preferably, the traction structure comprises a lock plate and a pull rope, the middle part of the lock plate is provided with an upward protruding accommodating cavity, and the end part of the pull rope is located in the accommodating cavity.

[0014] Preferably, a rubber anti-skid layer is arranged on the inner wall of the accommodating cavity, and a groove matched with the surface texture of the pull rope is formed in the rubber anti-skid layer.

[0015] Preferably, anti-collision wheels are vertically and rotatably arranged at both sides of the bottom disc, and one side of the anti-collision wheel is located outside the bottom disc.

[0016] The detachable and movable cantilever cast-in-place beam internal maintenance support trolley has the following beneficial effects.

[0017] 1. The cantilever cast-in-place box beam concrete manual maintenance randomness and poor continuity of the prior art are overcome, the inside of the cantilever cast-in-place beam can be more stably and continuously maintained, surface cracks or even deep cracks caused by improper maintenance are avoided, the structure stress is guaranteed, and the service life of the concrete structure is improved.

[0018] 2、The whole device is designed as a detachable and movable structure, wherein the top frame and the bottom frame are connected through the connecting seat, the connecting disc and the adapting disc connected by threads, and the connection is realized by bolts passing through the connecting holes, and the extension pipe can also be connected between the bottom frame and the connecting seat, so that the device can be assembled, disassembled and transported conveniently, and can be flexibly adapted to the requirements of different construction sites and construction stages, and the versatility and turnover rate of the device are improved.

[0019] 3、The hooks are equidistantly arranged on the bottom of the support rod of the top frame along the length direction, the first maintenance pipes distributed on the two sides are connected, the second maintenance pipe is fixed on the top of the top frame, and the spray heads are equidistantly arranged on the first maintenance pipes and the second maintenance pipe. This layout makes the maintenance trolley be able to comprehensively and uniformly spray and maintain different positions inside the cantilever cast-in-place beam, and ensures the maintenance effect. Specifically, the spray heads of the two first maintenance pipes are respectively directed to the top of the two sides of the top frame, and the spray heads of the second maintenance pipe are arranged on the top, so that the beam body can be maintained from different angles without dead angle.

[0020] 4、The traction structure includes the lock plate and the pull rope, the accommodating cavity in the middle of the lock plate can accommodate the end of the pull rope, and the traction structure is connected to the two ends of the bottom disc, so that the maintenance trolley can be moved by pulling the pull rope, and the maintenance trolley can be moved flexibly in the construction area, and the efficiency of the maintenance work is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in connection with the drawings and embodiments:

[0022] Figure 1 It is the structure main view of the utility model embodiment in the contraction state.

[0023] Figure 2 It is the structure main view of the utility model embodiment in the elongation state.

[0024] Figure 3 It is the sectional view of the top of the utility model embodiment.

[0025] Figure 4 It is the sectional view of the bottom of the utility model embodiment.

[0026] In the drawing: 1, bottom disc;2, bottom frame;3, connecting joint;4, lock plate;5, pull rope;6, top frame;7, support rod;8, hook;9, first maintenance pipe;10, fixed plate;11, second maintenance pipe;12, connecting seat;13, anti-collision wheel;14, extension pipe. DETAILED DESCRIPTION

[0027] As Figures 1-4As shown, the utility model provides a kind of detachable, movable cantilever cast-in-place beam internal maintenance support trolley, including the chassis 1 of bottom setting gyro wheel, the chassis 2 of being fixed in the top of chassis 1 and the top frame 6 for supporting spray pipeline connected in the top of chassis 2, connecting joint 3 for being used to connect external water supply pipeline is fixed on chassis 2, and traction structure is connected to the end of chassis 2.

[0028] By supporting trolley transportation to the inside of cantilever cast-in-place beam, the two ends of supporting trolley are connected with traction structure respectively, supporting trolley is pulled in the inside of cantilever cast-in-place beam by the traction structure of two ends, and connecting with connecting joint 3 by external water supply pipeline, in the process of supporting trolley movement, water supply is carried out by external water supply pipeline, and spray maintenance is carried out by spray pipeline on top frame 6, and supporting trolley is moved in the inside of cantilever cast-in-place beam synchronously, according to the amount of spray water, the pulling speed of traction structure is set, and the quality of maintenance in the inside of cantilever cast-in-place beam is guaranteed.

[0029] As shown in Figure 1 and Figure 2 , it is the disassembly and assembly of support trolley. The bottom of top frame 6 is provided with threaded hole, and connecting seat 12 is threadedly connected, the bottom of connecting seat 12 is provided with connecting disc, the top of chassis 2 is provided with adapter disc, and connecting hole for bolt is arranged between connecting disc and adapter disc. When installing top frame 6, first use connecting seat 12, rotate connecting seat 12, so that the top end of connecting seat 12 is threadedly connected at the bottom of top frame 6, and the height of four connecting seats 12 at four corners of top frame 6 is ensured to be equal, then connecting disc at the bottom end of connecting seat 12 is placed on adapter disc at the top end of chassis 2, and the angle of connecting disc is adjusted by vertically rotating connecting seat 12, so that the hole position is aligned, and then connecting disc and adapter disc are locked by bolt, to realize the fixation of connecting seat 12 on chassis 2.

[0030] As shown in Figure 1 and Figure 2 , it is to adjust the range of spray maintenance according to the size of the inside of cantilever cast-in-place beam. Extension pipe 14 is connected between chassis 2 and connecting seat 12, the top end of extension pipe 14 is threadedly connected with the bottom of top frame 6, the bottom end of extension pipe 14 is provided with threaded hole, and the top end of connecting seat 12 is threadedly connected. When the inside passage of cantilever cast-in-place beam is low, top frame 6 is directly connected with connecting seat 12, at this time, the height of support trolley is low, which can move in the inside of cantilever cast-in-place beam, and spray pipeline can complete the maintenance of the inside of cantilever cast-in-place beam; when the inside passage of cantilever cast-in-place beam is high, extension pipe 14 is used, the top end of extension pipe 14 can be threadedly connected at the bottom of top frame 6, then connecting seat 12 is threadedly connected at the bottom end of extension pipe 14, and then connecting seat 12 is fixed, to raise the height of top frame 6 and spray pipe on top frame 6 by extension pipe 14, to ensure the quality of maintenance.

[0031] As the preferred embodiment of the utility model, for the convenience of height adjustment of the top frame 6. The extension pipe 14 is telescopic structure, including each other sleeve of inner tube and outer tube, inner tube and outer tube are all equidistantly provided with positioning hole for positioning pin insertion. By positioning pin insertion in the corresponding positioning hole, the length of the extension pipe 14 can be adjusted to adapt to the curing requirement of different height of cantilever cast-in-place beam, increase the versatility and flexibility of the device.

[0032] As Figures 1-3 The top frame 6 includes horizontally fixedly arranged support rod 7, and the support rod 7 bottom is equidistantly provided with hook 8 along the length direction, the spray pipeline includes the first curing pipe 9 distributed in both sides and the second curing pipe 11 fixed to the top of the top frame 6, the first curing pipe 9 is connected to the hook 8, and the first curing pipe 9 and the second curing pipe 11 are all equidistantly provided with spray head. The top frame 6 is in the shape of I, and the support rod 7 in the middle is used for supporting the first curing pipe 9 in cooperation with the hook 8, the end of the first curing pipe 9 is connected to the connecting joint 3 through the hose, the external water supply pipeline is connected to the other end of the connecting joint 3, and the water supply of the first curing pipe 9 is realized; the external water supply pipeline supplies water to the two first curing pipes 9, and the spray heads on the two first curing pipes 9 spray water on the two sides of the support trolley respectively, so that the inner side wall is maintained, and the second curing pipe 11 on the top is fixed on the top frame 6, is supplied with water by the external water supply pipeline alone, is sprayed on the top, and can maintain the bottom.

[0033] As the preferred embodiment of the utility model, to improve the stability of the installation of the first curing pipe 9. The opening of the hook 8 is hinged to a limiting block, a torsional spring is sleeved on the mounting shaft of the limiting block, when the first curing pipe 9 is connected to the hook 8, the free end of the limiting block is buckled on the first curing pipe 9. When installing the curing pipe 9, the first curing pipe 9 can be placed on the hook 8 by rotating the limiting block, then the limiting block is loosened, the limiting block is rotated under the action of the torsional spring, so that the end portion of the limiting block presses down the top of the first curing pipe 9, and the stability of the installation of the first curing pipe 9 is ensured.

[0034] As Figures 1-3As shown in the second maintenance pipe 11, the fixed installation is realized. The support rod 7 is arranged in the middle of the top frame 6, the support rod 7 is arranged in pairs, the two first maintenance pipes 9 are arranged on the two sides of the top frame 6, the spray head of the second maintenance pipe 11 is arranged on the top, the end of the support rod 7 is vertically fixedly connected with the fixed plate 10, and the second maintenance pipe 11 is connected on the fixed plate 10. The fixed plate 10 is welded between the two support rods 7, the fixed plate 10 is provided with a hole, then the second maintenance pipe 11 is inserted into the hole, and the second maintenance pipe 11 is welded on the fixed plate 10; the other end of the second maintenance pipe 11 is also connected with a plate and is directly welded on the end of the top frame 6; a vertical plate is also welded on the support rod 7, the vertical plate is provided with a hole, the hole is aligned with the bottom end of the hook 8, the first maintenance pipe 9 is placed inside the hook 8, then the first maintenance pipe 9 is axially slid, so that the end of the first maintenance pipe 9 passes through the hole in the vertical plate, and then the connection of the hose is carried out.

[0035] As shown in Figure 1 , Figure 2 and Figure 4 , the traction structure includes a lock plate 4 and a pull rope 5, the lock plate 4 is provided with an upward protruding accommodating cavity in the middle, the pull rope 5 is arranged in the accommodating cavity, and the bottom disc 1 is connected with the traction structure at both ends. The lock plate 4 comprises an arc-shaped accommodating cavity in the middle and horizontal plates fixed horizontally on both sides of the accommodating cavity, and the horizontal plates are connected to the bottom disc 1 by bolts; the pull rope 5 is placed in the accommodating cavity, then the lock plate 4 is locked by bolts, the fixation of the pull rope 5 is realized, the other end of the pull rope 5 is wound in the winding drum, the winding drum is driven to rotate by the driving part, and the support trolley is moved by using the pull rope 5; the pull ropes 5 at both ends of the bottom disc 1 are connected with two winding drums respectively, when the support trolley is pulled, one winding drum is unwound, and the other winding drum is wound.

[0036] As a preferred embodiment of the utility model, in order to further improve the connection stability of the pull rope 5 and the lock plate 4. The inner wall of the accommodating cavity is provided with a rubber anti-skid layer, and the rubber anti-skid layer is provided with a groove matched with the surface texture of the pull rope 5. When the end of the pull rope 5 is located in the accommodating cavity, the rubber anti-skid layer can increase the friction between the pull rope 5 and the rubber anti-skid layer, prevent the pull rope 5 from sliding in the accommodating cavity, and ensure the stability and reliability of the traction structure in use.

[0037] As shown in Figures 1-3 , in order to avoid deviation during the movement of the traction support trolley, the support trolley scratches the inside of the cantilever cast-in-place beam, and the support trolley is damaged. The anti-collision wheels 13 are vertically arranged on both sides of the bottom disc 1, and one side of the anti-collision wheels 13 is located outside the bottom disc 1. The anti-collision wheels 13 are used for lateral support, so that the bottom disc 1 does not directly contact the inside of the cantilever cast-in-place beam, and the bottom disc 1 is not damaged due to friction during traction.

Claims

1. A detachable and movable cantilever cast-in-place beam internal curing support trolley, characterized in that: The utility model provides a spraying device for road maintenance, which comprises a chassis (1) provided with a roller at the bottom, a bottom frame (2) fixed to the top of the chassis (1), and a top frame (6) connected to the top of the bottom frame (2) for supporting a spraying pipeline.

2. The detachable and movable support trolley for internal curing of cantilever cast-in-place beam according to claim 1, characterized in that: The bottom of the top frame (6) is provided with a threaded hole, and a connecting seat (12) is threadedly connected to the threaded hole; the bottom of the connecting seat (12) is provided with a connecting disc; the top of the bottom frame (2) is provided with an adapter disc; and a connecting hole for a bolt is arranged between the connecting disc and the adapter disc.

3. The detachable and movable support trolley for the internal maintenance of the cantilever cast-in-place beam according to claim 2, characterized in that: An extension pipe (14) is connected between the bottom frame (2) and the connecting seat (12); the top end of the extension pipe (14) is threadedly connected to the bottom of the top frame (6); and the bottom end of the extension pipe (14) is provided with a threaded hole and is threadedly connected to the top end of the connecting seat (12).

4. A detachable and movable internal maintenance support trolley for a cantilever cast-in-place beam, according to claim 3, characterized in that: The extension pipe (14) has a telescopic structure and comprises an inner pipe and an outer pipe that are telescopically connected to each other; and positioning holes for positioning pins are equidistantly arranged on the inner pipe and the outer pipe.

5. The detachable and movable internal maintenance support trolley for cantilever cast-in-place beam according to claim 1, characterized in that: The top frame (6) comprises a support rod (7) fixed horizontally; hooks (8) are equidistantly arranged on the bottom of the support rod (7) along the length direction; the spraying pipeline comprises first maintenance pipes (9) arranged on both sides and a second maintenance pipe (11) fixed to the top of the top frame (6); the first maintenance pipes (9) are connected to the hooks (8); and nozzles are equidistantly arranged on the first maintenance pipes (9) and the second maintenance pipe (11).

6. A detachable and movable internal maintenance support trolley for a cantilever cast-in-place beam, according to claim 5, characterized in that: A limiting block is hingedly connected to the opening of the hook (8); a torsional spring is sleeved on the mounting shaft of the limiting block; and the free end of the limiting block is buckled on the first maintenance pipe (9) when the first maintenance pipe (9) is connected to the hook (8).

7. The detachable and movable internal maintenance support trolley for cantilever cast-in-place beam according to claim 6, characterized in that: The support rod (7) is arranged in the middle of the top frame (6); the support rod (7) is arranged in pairs; the nozzles of the two first maintenance pipes (9) are respectively directed to the top of the top frame (6) on both sides; the nozzle of the second maintenance pipe (11) is arranged on the top; the end of the support rod (7) is vertically and fixedly connected with a fixed plate (10); and the second maintenance pipe (11) is connected to the fixed plate (10).

8. The detachable and movable internal maintenance support trolley for cantilever cast-in-place beam according to claim 1, characterized in that: The traction structure comprises a lock plate (4) and a pull rope (5); the middle of the lock plate (4) is provided with an upward protruding accommodating cavity; and the end of the pull rope (5) is located in the accommodating cavity; and the traction structure is connected to both ends of the chassis (1).

9. A detachable and movable internal maintenance support trolley for a cantilever cast-in-place beam, according to claim 8, characterized in that: A rubber anti-skid layer is arranged on the inner wall of the accommodating cavity; and a groove that is matched with the surface texture of the pull rope (5) is arranged on the rubber anti-skid layer.

10. The detachable and movable internal maintenance support trolley for cantilever cast-in-place beam according to claim 1, characterized in that: Anti-collision wheels (13) are vertically arranged on both sides of the chassis (1); and one side of the anti-collision wheel (13) is located outside the chassis (1).

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