Automatic spraying device for maintenance of inner wall of box girder

Abstract

An automatic spraying device for box girder inner wall maintenance comprises a first supporting base, a second supporting base and a motor supporting base, a transmission screw is arranged between a first fixing block and a second fixing block in a spliced connection mode, and a limiting rod is arranged between a first screw mounting cylinder and a second screw mounting cylinder in a spliced connection mode. A motor supporting base is arranged on the side of the second supporting base, a motor is fixedly connected to the motor supporting base, the end of the motor penetrates through a second fixing block to be connected with the transmission screw, one end of a connecting rod is connected with the first supporting column in a spliced mode, and the other end of the connecting rod is connected with the second supporting column in a spliced mode. The other end penetrates through the second supporting column and is spliced with the motor supporting base; the transmission screw is driven by the motor to rotate, so that the spraying device does constant-speed displacement motion in the box girder, spraying maintenance operation is performed, the structure is simple, disassembly and transportation are convenient, manpower can be saved, and the technical effects of improving the operation efficiency and reducing the labor cost are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to box girder maintenance technical field, especially a box girder inner wall maintenance automatic spraying device. BACKGROUND

[0002] Box girder is a kind of girder in bridge engineering, hollow inside, with flange on upper two sides, similar to box, thus named, divided into single box, multiple boxes etc., and box girder of reinforced concrete structure is divided into precast box girder and cast-in-situ box girder, and the box girder precast in independent site can be erected after lower part engineering is completed, can accelerate engineering progress, save construction period, and cast-in-situ box girder is mostly used in large-scale continuous bridge, commonly divided into two kinds according to material, one is pre-stressed reinforced concrete box girder, and the other is steel box girder;

[0003] In prior art, box girder will enter a maintenance process after precasting, and usually, operating personnel operates water sprayer to spray maintenance liquid to maintain box girder, since box girder is long as a whole and has large inner surface area, manually operating water sprayer to spray maintenance liquid not only reduces work efficiency, but also increases labor cost. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of box girder inner wall maintenance automatic spraying device, solve the technical problem of the prior art due to the way of manual operation to box girder spray maintenance liquid, leading to reduce work efficiency.

[0005] To solve the above problems, the utility model provides a kind of box girder inner wall maintenance automatic spraying device, including first support base, second support base and motor support base, characterized by: the first support base upper surface is vertically provided with first support column, the first support column end surface is fixedly connected with first fixed block, the first fixed block surface is vertically rotatably connected with longitudinal screw rod, and first screw rod installation cylinder is symmetrically arranged on both sides, the longitudinal screw rod end surface is provided with longitudinal extrusion block, and surface is provided with longitudinal sleeve, the longitudinal sleeve is fixedly connected with longitudinal extrusion block, the first screw rod installation cylinder is rotatably connected with first transverse screw rod in, the first transverse screw rod end surface is provided with first transverse extrusion block, and surface is provided with first transverse sleeve, and the first transverse sleeve is fixedly connected with first transverse extrusion block;

[0006] The second support base upper surface is vertically provided with second support column, the second support column end surface is fixedly connected with second fixed block, the second fixed block both sides are symmetrically provided with second screw rod installation cylinder, the second screw rod installation cylinder is rotatably connected with second transverse screw rod in, the second transverse screw rod end surface is provided with second transverse extrusion block, and surface is provided with second transverse sleeve, and the second transverse sleeve is fixedly connected with second transverse extrusion block;

[0007] The transmission screw rod is arranged in splicing connection between the first fixed block and the second fixed block, the limiting rod is arranged in splicing connection between the first screw rod mounting cylinder and the second screw rod mounting cylinder, the spraying device is in threaded connection with the transmission screw rod by penetrating the transmission screw rod and the limiting rod, the motor supporting base is arranged on the side of the second supporting base, the motor is fixedly connected on the motor supporting base, the motor end is connected with the transmission screw rod by penetrating the second fixed block, one end of the connecting rod is in splicing connection with the first supporting column, and the other end is in splicing connection with the motor supporting base by penetrating the second supporting column.

[0008] Further, the spraying device comprises a box body, the surface of the box body is provided with a spraying head, and the lower bottom surface is provided with a water inlet.

[0009] Further, the surface of the box body is provided with five spraying heads.

[0010] Further, the outer surface of the box body is in a circular arc structure.

[0011] Further, two limiting rods are arranged in splicing connection between the first screw rod mounting cylinder and the second screw rod mounting cylinder.

[0012] The application has the advantages that: the longitudinal extruding block, the longitudinal extruding block and the second longitudinal extruding block are in contact with the inner surface of the box girder by rotating the longitudinal screw rod, the first transverse screw rod and the second transverse screw rod, so that the application is fixed in position, then the transmission screw rod is rotated by the motor, the spraying device moves at a constant speed in the box girder, and the inner surface of the box girder is sprayed and maintained by the spraying device, so that the structure is simple, the disassembly and transportation are convenient, the manpower can be saved, the work efficiency is improved, and the labor cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view according to the embodiment of the utility model;

[0014] Figure 2 It is a front view structure schematic view according to the embodiment of the utility model;

[0015] Figure 3 It is a side view structure schematic view according to the embodiment of the utility model;

[0016] Figure 4 It is a top view structure schematic view according to the embodiment of the utility model;

[0017] Figure 5 It is a three-dimensional structure schematic view according to the embodiment of the utility model;

[0018] Figure 6 It is a side view structure schematic view according to the embodiment of the utility model.

[0019] Reference numerals: 1. First support base; 2. First screw mounting cylinder; 3. Second support base; 4. Second screw mounting cylinder; 5. Motor support base; 6. Transmission screw; 7. Limiting rod; 8. Connecting rod; 9. Spraying device; 11. First support column; 12. First fixing block; 13. Longitudinal screw; 14. Longitudinal sleeve; 15. Longitudinal pressing block; 21. First transverse screw; 22. First transverse sleeve; 23. First transverse pressing block; 31. Second support column; 32. Second fixing block; 41. Second transverse screw; 42. Second transverse sleeve; 43. Second transverse pressing block; 51. Motor; 91. Housing; 92. Spray head; 93. Water inlet. Detailed Implementation

[0020] To make the technical solution of this utility model clearer, the present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-6 As shown, an automatic spraying device for the inner wall curing of a box girder according to an embodiment of the present utility model includes a first support base 1, a second support base 3 and a motor support base 5. A first support column 11 is vertically provided on the upper surface of the first support base 1. A first fixing block 12 is fixedly connected to the end face of the first support column 11. A longitudinal screw 13 is vertically rotatably connected to the surface of the first fixing block 12. A first screw mounting cylinder 2 is symmetrically provided on both sides. A longitudinal pressing block 15 is provided on the end face of the longitudinal screw 13. A longitudinal sleeve 14 is provided on the surface. The longitudinal sleeve 14 is fixedly connected to the longitudinal pressing block 15. A first transverse screw 21 is rotatably connected inside the first screw mounting cylinder 2. A first transverse pressing block 23 is provided on the end face of the first transverse screw 21. A first transverse sleeve 22 is provided on the surface. The first transverse sleeve 22 is fixedly connected to the first transverse pressing block 23.

[0022] The second support base 3 has a second support column 31 vertically arranged on its upper surface. The end face of the second support column 31 is fixedly connected to a second fixing block 32. The second fixing block 32 has second screw mounting cylinders 4 symmetrically arranged on both sides. The second screw mounting cylinder 4 has a second transverse screw 41 rotatably connected inside. The end face of the second transverse screw 41 has a second transverse extrusion block 43, and the surface has a second transverse sleeve 42. The second transverse sleeve 42 is fixedly connected to the second transverse extrusion block 43.

[0023] A transmission screw 6 is spliced ​​between the first fixing block 12 and the second fixing block 32. A limiting rod 7 is spliced ​​between the first screw mounting cylinder 2 and the second screw mounting cylinder 4. The spraying device 9 passes through the transmission screw 6 and the limiting rod 7 and is threadedly connected to the transmission screw 6. A motor support base 5 is provided on the side of the second support base 3. A motor 51 is fixedly connected to the motor support base 5. The end of the motor 51 passes through the second fixing block 32 and is connected to the transmission screw 6. One end of the connecting rod 8 is spliced ​​to the first support column 11, and the other end passes through the second support column 31 and is spliced ​​to the motor support base 5.

[0024] The spraying device 9 includes a housing 91, with spray heads 92 on the surface of the housing 91 and a water inlet 93 on the bottom surface. During operation, the water inlet 93 is connected to a water pipe for conveying curing liquid, and curing liquid is filled into the housing 91. When the water pressure reaches a certain level, the curing liquid is sprayed onto the inner wall of the box girder through the spray heads 92, thereby performing spray curing operations.

[0025] The box body 91 is equipped with five spray heads 92 on its surface. During operation, the spray heads 92 spray curing liquid onto the inner wall of the box girder from multiple directions to carry out spray curing operations.

[0026] The outer surface of the box body 91 has an arc-shaped structure; during operation, it can carry out spray curing operations on the inner wall of the box girder to the maximum extent.

[0027] Two limiting rods 7 are provided between the first screw mounting cylinder 2 and the second screw mounting cylinder 4. During operation, the motor 51 drives the transmission screw 6 to rotate, so that the spraying device 9 makes uniform displacement movement. During the uniform displacement movement of the spraying device 9, the limiting rods 7 can play a stabilizing role for the spraying device 9.

[0028] Working principle: First, the present invention is installed inside the box girder. Then, by holding the longitudinal sleeve 14 and rotating the longitudinal screw 13, the longitudinal pressing block 15 is pressed against the surface of the box girder. Next, by holding the first transverse sleeve 22 and rotating the first transverse screw 21, the first transverse pressing block 23 is pressed against the surface of the box girder. Finally, by holding the second transverse sleeve 42 and rotating the second transverse screw 41, the second transverse pressing block 43 is pressed against the surface of the box girder, thereby fixing the present invention inside the box girder. Then, the water pipe for conveying the curing fluid is connected to the inlet 93. Due to the addition of a water pump for pressurization during the conveying of the curing fluid, the curing fluid is cured. Increased water pressure causes the spray to be applied outward from the spray head 92 onto the inner wall of the box girder. Once preparation is complete, the motor 51 is started, driving the transmission screw 6 to rotate, causing the spray device 9 to move at a constant speed inside the box girder. During this constant speed movement, the limiting rod 7 stabilizes the spray device 9. Since the box girder has a trapezoidal internal structure (longer at the top and shorter at the bottom), when the spray device 9 sprays the curing liquid onto the top and inner surfaces of the box girder, excess curing liquid will slide down to the bottom surface of the inner side of the box girder, thus providing overall curing for the inner wall of the box girder.

[0029] The above embodiments can be combined with each other for further implementation if they are not mutually exclusive.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic spraying device for curing the inner wall of a box girder, comprising a first support base (1), a second support base (3), and a motor support base (5), characterized in that: The first support base (1) has a first support column (11) vertically arranged on its upper surface. The first support column (11) has a first fixing block (12) fixedly connected to its end face. The first fixing block (12) has a longitudinal screw (13) vertically rotatably connected to its surface. The first screw mounting cylinder (2) is symmetrically arranged on both sides. The longitudinal screw (13) has a longitudinal extrusion block (15) on its end face and a longitudinal sleeve (14) on its surface. The longitudinal sleeve (14) is fixedly connected to the longitudinal extrusion block (15). The first screw mounting cylinder (2) has a first transverse screw (21) rotatably connected inside its interior. The first transverse screw (21) has a first transverse extrusion block (23) on its end face and a first transverse sleeve (22) on its surface. The first transverse sleeve (22) is fixedly connected to the first transverse extrusion block (23). The upper surface of the second support base (3) is vertically provided with a second support column (31), and the end face of the second support column (31) is fixedly connected with a second fixing block (32). The second fixing block (32) is symmetrically provided with second screw mounting cylinders (4) on both sides. The second screw mounting cylinder (4) is rotatably connected with a second transverse screw (41). The end face of the second transverse screw (41) is provided with a second transverse extrusion block (43), and the surface is provided with a second transverse sleeve (42). The second transverse sleeve (42) is fixedly connected with the second transverse extrusion block (43). A transmission screw (6) is spliced ​​between the first fixing block (12) and the second fixing block (32). A limiting rod (7) is spliced ​​between the first screw mounting cylinder (2) and the second screw mounting cylinder (4). The spraying device (9) passes through the transmission screw (6) and the limiting rod (7) and is threadedly connected to the transmission screw (6). A motor support base (5) is provided on the side of the second support base (3). A motor (51) is fixedly connected on the motor support base (5). The end of the motor (51) passes through the second fixing block (32) and is connected to the transmission screw (6). One end of the connecting rod (8) is spliced ​​to the first support column (11), and the other end passes through the second support column (31) and is spliced ​​to the motor support base (5).

2. The automatic spraying device for curing the inner wall of a box girder according to claim 1, characterized in that: The spraying device (9) includes a housing (91), the surface of which is provided with spray heads (92), and the bottom surface is provided with a water inlet (93).

3. The automatic spraying device for curing the inner wall of a box girder according to claim 2, characterized in that: The surface of the box (91) is provided with 5 spray heads (92).

4. The automatic spraying device for curing the inner wall of a box girder according to claim 2, characterized in that: The outer surface of the box (91) has an arc-shaped structure.

5. The automatic spraying device for curing the inner wall of a box girder according to claim 2, characterized in that: Two limiting rods (7) are provided for splicing and connecting the first screw mounting cylinder (2) and the second screw mounting cylinder (4).

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