Anti-corrosion paint spraying device for bridge corrosion prevention

Abstract

The anti-corrosion paint spraying device for bridge corrosion prevention comprises a tractor, a spraying platform is arranged on the rear side of the tractor, rotary telescopic arms are arranged on the two sides of the spraying platform, and a multi-section paint spraying mechanism is arranged at the working end of each rotary telescopic arm; the paint spraying mechanism comprises a reference box, the reference box is rotationally connected to the working end of the rotary telescopic arm, one side of the reference box is hinged to a middle-section supporting rod and provided with a first torsional spring, and the middle-section supporting rod is hinged to a tail-end supporting rod and provided with a first torsional spring after being sequentially hinged to a plurality of components of the same structure. One side of the tail end supporting rod is fixedly connected with a steel strand, and the steel strand penetrates through the avoiding hole of the middle section supporting rod and is fixedly connected into the winding groove of the winch; the middle supporting rod and the tail supporting rod are provided with rotary nozzles respectively. According to the spraying device, surrounding type spraying is carried out on the pier position through the middle-section supporting rod and the tail-end supporting rod, targeted spraying is carried out on the positions, not prone to spraying, of the pier and the bridge bottom, and the spraying efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of bridge spraying equipment, and in particular to an anti-corrosion paint spraying device for bridge anti-corrosion. Background Art

[0002] In order to ensure the service life of bridge components, it is necessary to spray protective coatings on the bridge components. However, existing spraying devices mostly use manually adjusted spraying methods, which easily leads to uneven actual spraying uniformity and affects the actual protective effect. When spraying the bottom of the bridge, the existing automatic spraying device is hindered from continuous spraying due to the influence of the bridge piers, affecting the spraying construction efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose an anti-corrosion paint spraying device for bridge anti-corrosion, thereby solving the problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An anticorrosive paint spraying device for bridge anticorrosion comprises a tractor, a spraying platform is arranged at the rear side of the tractor, rotating telescopic arms are arranged on both sides of the spraying platform, and a multi-stage spraying mechanism is arranged at the working end of each rotating telescopic arm;

[0006] The paint spraying mechanism includes a reference box, which is rotatably connected to the working end of the rotating telescopic arm, one side of the reference box is hingedly connected to the middle support rod and a first torsion spring is provided, the middle support rod is hingedly connected to a plurality of components with the same structure in sequence, and then is hingedly connected to the end support rod and a first torsion spring is provided, the reference box is rotatably connected to the winch, one side of the end support rod is fixedly connected to the steel strand, the steel strand passes through the avoidance hole of the middle support rod and is fixedly connected to the winding groove of the winch;

[0007] The middle support rod and the end support rod are respectively provided with rotating spray heads.

[0008] Preferably, the working end of the rotating telescopic arm is fixedly connected to a disc, the outer circle of the disc is fixedly connected to an arc-shaped rack, the upper end of the rotating shaft of the winch is fixedly connected to a first gear, and the first gear is meshed with the arc-shaped rack.

[0009] Preferably, the reference box is fixedly connected to the reference shaft, the upper end of the reference shaft is rotatably connected to the working end of the rotating telescopic arm and is provided with a strong torsion spring, the torsion of the strong torsion spring is greater than that of the first torsion spring, the lower end of the reference shaft is fixedly connected to two inclined rods, and the end of each inclined rod is rotatably connected to a roller;

[0010] Anti-collision strips are arranged on the forward side of the middle support rod and the end support rod.

[0011] Preferably, a bidirectional torsion spring is mounted on the rotating shaft of the first gear, and the torsion force of the bidirectional torsion spring is greater than that of the first torsion spring.

[0012] Preferably, the ends of the middle support rod and the terminal support rod are respectively provided with inclined surfaces.

[0013] Preferably, the inclined surface is slidably connected to a push rod, a support spring is fixedly connected between the push rod and the middle support rod, the push rods on the two inclined surfaces can conflict with each other, the mounting shaft of the rotating nozzle is fixedly connected to the first bevel gear, the middle support rod is rotatably connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, the shaft of the first bevel gear is fixedly connected to the second gear, and the push rod is meshed with the second gear.

[0014] The advantages of the present invention are: an anti-corrosion paint spraying device for bridge anti-corrosion provided by the present invention travels on the bridge deck through a tractor, and the rotating telescopic arm is flipped from the spraying platform to make the spraying mechanism located under the bridge bottom for spraying operations. When encountering a bridge pier, the reference box rotates and the steel strand is relaxed, and the middle support rod and the end support rod perform surrounding spraying at the pier position, and targeted spraying is performed on the positions of the pier and the bridge bottom that are difficult to spray. After the present invention is moved away, the missed positions are supplemented by manual climbing, thereby reducing the man-hours of manual climbing processing and improving the spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a basic structural schematic diagram of the present invention;

[0016] Figure 2 is a schematic diagram of the state of the paint spraying mechanism of the present invention approaching a bridge pier;

[0017] Figure 3 It is a schematic diagram of the state of the paint spraying mechanism of the present invention in response to the deformation of the bridge pier;

[0018] Figure 4 yes Figure 3 A partial enlarged view of point F in FIG. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Example 1

[0021] like Figures 1 to 4As shown, the present invention provides an anti-corrosion paint spraying device for bridge anti-corrosion, comprising a tractor 1, a spraying platform 11 is arranged at the rear side of the tractor 1, and the spraying platform 11 is installed with existing technical structures such as a control device, a paint tank and a pump, and rotating telescopic arms 12 are arranged on both sides of the spraying platform 11, and a multi-stage paint spraying mechanism 3 is arranged at the working end of each rotating telescopic arm 12;

[0022] The paint spraying mechanism 3 includes a reference box 31, which is rotatably connected to the working end of the rotating telescopic arm 12. One side of the reference box 31 is hingedly connected to the middle support rod 32 and a first torsion spring is provided. The middle support rod 32 is hingedly connected to a plurality of components with the same structure in turn, and then is hingedly connected to the end support rod 33 and a first torsion spring is provided. The first torsion spring makes the middle support rod 32 and the end support rod 33 in a free state. Figure 3 In the state, the reference box 31 rotates and connects to the winch, one side of the end support rod 33 is fixedly connected to the steel strand 34, the steel strand 34 passes through the avoidance hole of the middle support rod 32 and is fixedly connected to the winding groove of the winch. When spraying at a position far away from the pier at the bottom of the bridge, the winch rotates and pulls the steel strand 34, so that all the middle support rods 32 and the end support rods 33 are straightened and move in a straight line, which is convenient for spraying a large area of ​​the bottom of the bridge;

[0023] The middle support rod 32 and the end support rod 33 are respectively provided with a rotating spray head 35 , and the spray head 35 is connected to the delivery pump of the spraying platform 11 through a hose.

[0024] The present invention uses a tractor 1 to walk on the bridge deck, and the rotating telescopic arm 12 is flipped from the spraying platform 11 to make the spraying mechanism 3 located under the bridge bottom for spraying. When encountering a bridge pier, the reference box 31 rotates and the steel strand 34 relaxes, and the middle support rod 32 and the end support rod 33 are in a state of being ... Figure 3 State, surrounding spraying is carried out at the pier position, and targeted spraying is carried out at the positions of the pier and the bridge bottom that are difficult to spray. After the present invention is moved away, the missed positions are supplemented by manual climbing, which reduces the working hours of manual climbing treatment and improves the spraying efficiency.

[0025] Example 2

[0026] like Figures 1 to 4 As shown, the working end of the rotating telescopic arm 12 is fixedly connected to a disc 36 , the outer circle of the disc 36 is fixedly connected to an arc-shaped rack 37 , and the upper end of the rotating shaft of the winch is fixedly connected to a first gear 38 , which meshes with the arc-shaped rack 37 .

[0027] The reference box 31 is fixedly connected to the reference shaft 311 , the upper end of the reference shaft 311 is rotatably connected to the working end of the rotating telescopic arm 12 and is provided with a strong torsion spring, the lower end of the reference shaft 311 is fixedly connected to two inclined rods 312 , and the end of each inclined rod 312 is rotatably connected to a roller 313 .

[0028] Anti-collision strips are respectively provided on the forward side of the middle support rod 32 and the end support rod 33 .

[0029] A bidirectional torsion spring is installed on the rotating shaft of the first gear 38, and the torsion force of the bidirectional torsion spring is greater than that of the first torsion spring. In a free state, the first gear 38 is reset by the bidirectional torsion spring, so that the middle support rod 32 and the end support rod 33 are in a straight line.

[0030] In Example 2, Figure 2 Towards Figure 3 When the state moves, the roller 313 of the inclined rod 312 in the forward direction contacts the bridge pier, causing the reference shaft 311 and the reference box 31 to rotate passively. The first gear 38 on the reference box 31 rotates around the disk 36 relative to the arc-shaped rack 37, causing the internal capstan to rotate relative to the reference box 31. The rotation of the capstan relaxes the previously tensioned steel strand 34. The first torsion spring causes the middle support rod 32 and the end support rod 33 to be in a free state. Figure 3 State, around one side of the pier, to facilitate spraying the junction of the pier and the bridge deck;

[0031] As the rotating telescopic arm 12 continues to move along the direction of the bridge, the roller 313 rolls from the front of the pier to the side of the pier, the reference box 31 further rotates relative to the disc 36, and the first gear 38 rotates beyond the limit of the arc-shaped rack 37, the first gear 38 is disengaged from the arc-shaped rack 37, and the first gear 38 is reset by the bidirectional torsion spring, so that the middle support rod 32 and the end support rod 33 are in a straight line. Figure 3 After the state, the middle support rod 32 and the end support rod 33 are in a straight line, which can easily pass over the pier from the side of the pier, so that the spraying operation can be connected for a long-distance viaduct.

[0032] Example 3

[0033] like Figures 1 to 4 As shown, the ends of the middle support rod 32 and the terminal support rod 33 are respectively provided with inclined surfaces 4, so that the middle support rod 32 and the terminal support rod 33 can rotate in the opposite direction. After the middle support rod 32 and the terminal support rod 33 pass over the bridge pier, the tractor 1 retreats and acts on the bridge pier through another inclined rod 312 and the roller 313, which correspondingly makes the reference box 31 rotate in the opposite direction relative to the embodiment 2, and the first gear 38 on the reference box 31 rotates around the disc 36 in the opposite direction relative to the arc-shaped rack 37, so that the internal winch rotates relative to the reference box 31, and the winch rotates the traction steel strand 34, so that the inclined surfaces 4 ends of the middle support rod 32 and the terminal support rod 33 approach each other and turn back to surround the bridge pier, and by pushing the reference box 31 in the opposite direction to rotate relatively, it can be reset. Figure 2 State, with the positive surrounding of Example 2, sufficient spraying is carried out between the pier and the bottom of the bridge, overcoming the defect that it is not easy to spray automatically there.

[0034] Furthermore, the inclined surface 4 is slidably connected to the push rod 5, and the support spring 51 is fixedly connected between the push rod 5 and the middle support rod 32. The push rods 5 on the two inclined surfaces 4 can conflict with each other. The mounting shaft of the rotating nozzle 35 is fixedly connected to the first bevel gear 52, and the middle support rod 32 is rotatably connected to the second bevel gear 53. The second bevel gear 53 is meshed with the first bevel gear 52, and the second gear 54 is fixedly connected to the shaft of the first bevel gear 52, and the push rod 5 is meshed with the second gear 54.

[0035] When the inclined surfaces 4 of the middle support rod 32 and the end support rod 33 are too close to each other, the rotating nozzle 35 can be adaptively rotated to the intersection of the top of the bridge pier and the bottom of the bridge. Figure 3 and Figure 4 As shown, the push rods 5 on the two inclined surfaces 4 move away from each other, and the push rods 5 slide through the first bevel gear 52, the second bevel gear 53 and the second gear 54 to rotate the rotary spray head 35, and rotate and spray when surrounding the bridge pier, so as to carry out targeted spraying in the narrow space above the bridge pier, reducing the workload of subsequent manual supplementary painting.

[0036] The structure disclosed in Example 1 of the present invention, the rotation and adaptive deformation of the paint spraying mechanism 3 can be realized by the cooperation of multiple motors, sensors and controllers. On the basis of Example 2 and Example 3, by only using the inclined rod 312, the roller 313, the reference shaft 311, the disk 36 and the arc-shaped rack 37, the function of the middle support rod 32 and the end support rod 33 surrounding the pier and crossing the pier can be realized. After the tractor moves forward and backward on the bridge deck with the pier as the reference several times, it can adaptively spray the narrow space between the pier and the bridge, which is convenient for continuous operation.

[0037] Although 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. An anticorrosive paint spraying device for bridge anticorrosion, comprising a tractor (1), a spraying platform (11) being arranged at the rear side of the tractor (1), rotating telescopic arms (12) being arranged at both sides of the spraying platform (11), and a multi-stage spraying mechanism (3) being arranged at the working end of each rotating telescopic arm (12); The paint spraying mechanism (3) comprises a reference box (31), the reference box (31) is rotatably connected to the working end of the rotating telescopic arm (12), one side of the reference box (31) is hingedly connected to a middle section support rod (32) and is provided with a first torsion spring, the middle section support rod (32) is hingedly connected to a plurality of components with the same structure in sequence and then is hingedly connected to a terminal support rod (33) and is provided with a first torsion spring, the reference box (31) is rotatably connected to a winch, one side of the terminal support rod (33) is fixedly connected to a steel strand (34), the steel strand (34) passes through a evacuation hole of the middle section support rod (32) and is fixedly connected to a winding groove of the winch; The middle support rod (32) and the end support rod (33) are respectively provided with a rotating spray head (35).

2. The anti-corrosion paint spraying device for bridge anti-corrosion according to claim 1 is characterized in that: The working end of the rotating telescopic arm (12) is fixedly connected to a disc (36), the outer circle of the disc (36) is fixedly connected to an arc-shaped rack (37), and the upper end of the rotating shaft of the winch is fixedly connected to a first gear (38), which meshes with the arc-shaped rack (37).

3. The anti-corrosion paint spraying device for bridge anti-corrosion according to claim 2 is characterized in that: The reference box (31) is fixedly connected to a reference shaft (311); the upper end of the reference shaft (311) is rotatably connected to the working end of the rotating telescopic arm (12) and is provided with a strong torsion spring, the torsion force of the strong torsion spring being greater than that of the first torsion spring; the lower end of the reference shaft (311) is fixedly connected to two inclined rods (312), and the end of each inclined rod (312) is rotatably connected to a roller (313); Anti-collision strips are respectively arranged on the forward side of the middle support rod (32) and the end support rod (33).

4. The anticorrosive paint spraying device for bridge anticorrosion according to claim 3 is characterized in that: A bidirectional torsion spring is mounted on the rotating shaft of the first gear (38), and the torsion force of the bidirectional torsion spring is greater than that of the first torsion spring.

5. The anticorrosive paint spraying device for bridge anticorrosion according to claim 1 is characterized in that: The ends of the middle support rod (32) and the end support rod (33) are respectively provided with inclined surfaces (4).

6. The anticorrosive paint spraying device for bridge anticorrosion according to claim 5 is characterized in that: The inclined surface (4) is slidably connected to a push rod (5); a support spring (51) is fixedly connected between the push rod (5) and the middle support rod (32); the push rods (5) on the two inclined surfaces (4) can collide with each other; the mounting shaft of the rotating spray head (35) is fixedly connected to a first bevel tooth (52); the middle support rod (32) is rotatably connected to a second bevel tooth (53); the second bevel tooth (53) is meshed with the first bevel tooth (52); a second gear (54) is fixedly connected to the shaft of the first bevel tooth (52); and the push rod (5) is meshed with the second gear (54).

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