Box girder end maintenance device

Abstract

A box girder end maintenance device relates to the field of bridge construction. The device is mainly designed for solving the problems that time and labor are wasted during maintenance of the beam end of the box girder at present. The device comprises a supporting plate, rollers are arranged at the bottom of the supporting plate, the supporting plate is composed of two supporting plate single bodies, and the two supporting plate single bodies are connected through an adjusting plate and an adjusting groove. Electric push rods are arranged at the tops of the supporting plate single bodies, and the two positioning plate single bodies are fixed to the electric push rods and connected through adjusting mechanisms. An extension plate and a clamping groove of the adjusting mechanism are arranged on the two positioning plate single bodies respectively, the extension plate is arranged in the clamping groove, an adjusting hole is formed in the front side wall of the clamping groove, a spring is arranged in an installation groove in the extension plate, and a limiting column is arranged at the front end of the spring. A spraying pipe positioning groove is formed in the front side face of the positioning plate, an arc-shaped fixing plate at the end of an adjusting screw rod is located in the spraying pipe positioning groove, the adjusting screw rod is in threaded connection with the positioning plate, and a spraying pipe is placed in the positioning groove of the positioning plate. The spraying pipe is provided with a water outlet pipe. The box girder end concrete curing device has the advantages of saving time and labor during box girder end concrete curing.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction, in particular to a box girder end maintenance device. Background Art

[0002] Box girder is a type of beam in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, similar to a box, hence the name. Box girders in reinforced concrete structures are divided into prefabricated box girders and cast-in-place box girders. Box girders prefabricated in an independent site are erected with a bridge erection machine after the lower part of the project is completed, which can speed up the project progress and save construction time. Cast-in-place box girders are mostly used for large continuous bridges.

[0003] At present, the maintenance of the box girder ends in the beam yard is carried out by covering with geotextiles and manually sprinkling water at regular intervals. However, this has a poor water retention effect and requires frequent sprinkling to ensure the maintenance needs of the concrete at the box girder ends. It also consumes a lot of manpower and is very troublesome. Therefore, it is necessary to design a box girder end maintenance device to solve this problem. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a box girder end curing device which can ensure the curing requirements of concrete at the box girder end and has a good curing effect.

[0005] The purpose of the utility model is achieved as follows: it includes a support plate, a roller is provided at the bottom of the support plate, the support plate is a split structure, that is, the support plate is composed of two left and right support plate monomers, one of the support plate monomers is provided with an adjustment groove recessed into the interior of the support plate monomer on the side, and the other support plate monomer is provided with an adjustment plate extending outward on the side, the adjustment plate is inserted into the adjustment groove to achieve the connection between the two support plate monomers, and the adjustment plate is in sliding contact with the adjustment groove.

[0006] An electric push rod is fixed on the top of the two support plate monomers, and the left and right ends of the positioning plate are respectively fixed on the extended ends of the two electric push rods. The positioning plate is also a split structure, that is, the positioning plate is composed of two left and right positioning plate monomers, and the upper and lower ends of the two positioning plate monomers are respectively connected by adjustment mechanisms; the positioning plate is a trapezoid that matches the end of the box beam.

[0007] The adjustment mechanism includes an extension plate and a slot. The extension plate is placed in the slot and is in sliding contact with the slot. The extension plate is fixed on the left end face of the positioning plate monomer located on the right. The slot is arranged at the right end of the positioning plate monomer located on the left. The front side wall of the slot is provided with a plurality of adjustment holes that are equidistant and arranged left and right. The extension plate is provided with a mounting slot. The spring is fixed in the mounting slot. A limiting column is fixed at the front end of the spring. The limiting column can be exposed from the front opening of the mounting slot, and the limiting column matches the adjustment hole.

[0008] A number of fixings are provided on the positioning plate, and a spray pipe positioning groove is provided on the front side of the positioning plate. The spray pipe positioning groove is also a trapezoid that matches the end of the box girder. The fixings include an adjusting screw, and the end of the adjusting screw is threadedly connected to an arc-shaped fixing plate. The arc-shaped fixing plate is located in the spray pipe positioning groove. The adjusting screw is threadedly connected to the positioning plate to place the spray pipe in the positioning groove of the positioning plate.

[0009] The side wall of the spray pipe is equidistantly connected with a plurality of water outlet pipes, and support rods are symmetrically fixed on the outer wall of the electric push rod, and the lower ends of the support rods are fixed on the support plates.

[0010] The advantages of the utility model are: since the support plate and the positioning plate are both split structures, the length of the device can be adjusted, and the height of the device can be adjusted by an electric push rod, so that it can match the end sections of box beams with different lengths. At the same time, the spray pipe is fixed in the spray pipe positioning groove of the positioning plate to spray water on the end section of the box beam, which not only ensures the maintenance requirements of the concrete at the end of the box beam, but also saves time and effort and can save water. Moreover, this device is highly adjustable and is very worthy of popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0014] Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning plate in the utility model;

[0015] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at point B in the middle. DETAILED DESCRIPTION

[0016] Combine the following Figure 1-5 Further explain the utility model;

[0017] It includes a support plate 1, a roller 2 is provided at the bottom of the support plate, and the support plate is a split structure, that is, the support plate is composed of two left and right support plate monomers, one of the support plate monomers is provided with an adjustment groove recessed into the inside of the support plate monomer on the side, and the other support plate monomer is provided with an adjustment plate 3 extending outward on the side, the adjustment plate is inserted into the adjustment groove to realize the connection between the two support plate monomers, and the adjustment plate is in sliding contact with the adjustment groove.

[0018] An electric push rod 4 is fixed on the top of the two support plate monomers, and the left and right ends of the positioning plate 5 are respectively fixed on the extended ends of the two electric push rods. The positioning plate is also a split structure, that is, the positioning plate is composed of two left and right positioning plate monomers, and the upper and lower ends of the two positioning plate monomers are respectively connected by adjustment mechanisms; the positioning plate is a trapezoid that matches the end of the box girder.

[0019] The adjustment mechanism includes an extension plate 6 and a slot. The extension plate is placed in the slot and is in sliding contact with the slot. The extension plate is fixed on the left end face of the positioning plate monomer located on the right. The slot is arranged at the right end of the positioning plate monomer located on the left. The front side wall of the slot is provided with a plurality of adjustment holes 7 that are equidistant and arranged left and right. The extension plate is provided with a mounting slot. A spring 8 is fixed in the mounting slot. A limiting column 9 is fixed at the front end of the spring. The limiting column can be exposed from the front opening of the mounting slot, and the limiting column matches the adjustment hole.

[0020] The working principle of the adjustment mechanism when in use is: press the limit column to compress the spring, and at the same time drive the limit column to slide into the installation slot, so that the extension plate can slide in the slot, and when the limit column slides to the next adjustment hole, the limit column pops out of the installation slot under the elastic force of the spring and is stuck in the adjustment hole, so that the extension plate can be fixed at a fixed position of the positioning plate, thereby achieving the effect of adjusting the length of the positioning plate, and the adjustability is strong.

[0021] A plurality of fixings are arranged on the positioning plate, and a spray pipe positioning groove 11 is arranged on the front side of the positioning plate. The spray pipe positioning groove is also a trapezoid that matches the end of the box girder. The fixings include an adjusting screw 12, and an arc-shaped fixing plate 13 is threadedly connected to the end of the adjusting screw. The arc-shaped fixing plate is located in the spray pipe positioning groove. The adjusting screw is threadedly connected to the positioning plate. The spray pipe 10 is placed in the positioning groove of the positioning plate, and then each adjusting screw is rotated to drive the inner wall of the arc-shaped fixing plate to contact the outer wall of the spray pipe, thereby fixing the spray pipe. The operation is simple.

[0022] The side wall of the spray pipe is connected to a plurality of water outlet pipes 15 at equal distances, and a support rod 14 is symmetrically fixed on the outer wall of the electric push rod, and the lower end of the support rod is fixed on the support plate. The support rod can play the role of auxiliary support and increase the stability of the entire device.

[0023] When in use, move the device to the end of the box girder, then adjust the length of the positioning plate through the adjusting mechanism to make it equal to the length of the box girder end, and then fix the spray pipe on the positioning plate through the fixing parts, and use the electric push rod to raise the positioning plate and the spray pipe to the appropriate height to replenish water and moisturize the end of the box girder. It not only has high water spraying efficiency and good maintenance effect, but also has strong adjustability and can be matched with different box girders. It is very worthy of promotion and application.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A box girder end maintenance device, comprising a support plate (1), a roller (2) being provided at the bottom of the support plate, wherein: The support plate is a split structure, that is, the support plate is composed of two left and right support plate monomers, one of which is provided with an adjustment groove recessed into the inside of the support plate monomer on the side surface, and the other is provided with an adjustment plate (3) extending outward on the side surface, the adjustment plate is inserted into the adjustment groove to realize the connection between the two support plate monomers, and the adjustment plate is in sliding contact with the adjustment groove; The tops of the two support plate monomers are fixed with electric push rods (4), and the left and right ends of the positioning plate (5) are respectively fixed to the extended ends of the two electric push rods. The positioning plate is also a split structure, that is, the positioning plate is composed of two left and right positioning plate monomers, and the upper and lower ends of the two positioning plate monomers are respectively connected by an adjustment mechanism; the positioning plate is a trapezoidal shape that matches the end of the box beam; The adjustment mechanism comprises an extension plate (6) and a slot, the extension plate being placed in the slot and in sliding contact with the slot, the extension plate being fixed to the left end surface of the positioning plate unit located on the right, the slot being arranged at the right end of the positioning plate unit located on the left, a plurality of adjustment holes (7) being arranged equidistantly and left and right on the front side wall of the slot, a mounting slot being provided on the extension plate, a spring (8) being fixed in the mounting slot, a limiting column (9) being fixed at the front end of the spring, the limiting column being exposed from the front opening of the mounting slot and extending into the adjustment hole; A plurality of fixings are arranged on the positioning plate, and a spray pipe positioning groove (11) is arranged on the front side of the positioning plate. The spray pipe positioning groove is also a trapezoidal shape matching the end of the box beam. The fixings include an adjusting screw (12), and the end of the adjusting screw is threadedly connected to an arc-shaped fixing plate (13). The arc-shaped fixing plate is located in the spray pipe positioning groove. The adjusting screw is threadedly connected to the positioning plate. The spray pipe (10) is placed in the positioning groove of the positioning plate. The side wall of the spray pipe is equidistantly connected to a plurality of water outlet pipes (15).

2. A box girder end maintenance device according to claim 1, characterized in that: Support rods (14) are symmetrically fixed on the outer wall of the electric push rod, and the lower ends of the support rods are fixed on the support plate.

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