Bridge column steel structure connecting member anticorrosion spraying device

Abstract

The present application relates to the technical field of bridge construction, and more particularly to a kind of anticorrosion spraying device for bridge column steel structure connecting component, including handle, the upper side of handle is provided with spraying pipe, also including throttling mechanism, throttling mechanism is arranged in spraying pipe, the lower side of spraying pipe is provided with steering mechanism.The present application can make the spraying direction of spraying pipe perpendicular to steel structure by the design of positioning mechanism, prevent anticorrosive paint from being sprayed on steel structure to produce sagging phenomenon, when spraying pipe sprays on the corner of steel structure, the spraying amount of spraying pipe can be reduced by the design of throttling mechanism, further prevent anticorrosive paint from producing sagging phenomenon, by the design of friction wheel A and friction wheel B, spraying pipe can be limited during the movement of electric sliding block, prevent spraying pipe from rotating randomly, by the extrusion of wedge-shaped strip A to cone, gap can be generated between friction wheel A and friction wheel B, so that spraying pipe can move.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, and particularly relates to a corrosion-proof spraying device for a bridge column steel structure connecting component. BACKGROUND

[0002] Steel structure is one of the most widely used materials in various large-scale engineering projects, and is indispensable in the fields of bridges, buildings and transportation infrastructure, etc. The surface of the steel structure is coated with a corrosion-proof coating for protection, which can prevent corrosion medium and moisture from contacting the surface of the steel structure, improve the corrosion resistance of the steel structure, delay the occurrence of passivation and other corrosion conditions, and even achieve the effect of no corrosion.

[0003] After the steel structure is processed in the factory, it will be pre-coated with a partial corrosion-proof coating to prevent large-area corrosion before installation. In addition, a non-spraying area needs to be reserved to prevent the pre-coated corrosion-proof coating near the splicing joint from being burned by the high temperature generated during welding, resulting in coating failure. After the steel structure is installed, corrosion-proof coating needs to be sprayed near the welding and bolt fastening area of the steel structure at the work site. The corrosion-proof spraying work in the prior art is usually performed by workers holding spraying equipment or using large-scale spraying equipment. Due to the installation angle and height of the steel structure, it is difficult to make the spraying direction of the corrosion-proof coating perpendicular to the surface of the steel structure in the above two ways, resulting in the phenomenon of sagging of the corrosion-proof coating sprayed on the steel structure, forming uneven corrosion-proof coating, and the thickness of the corrosion-proof coating near the sagging area is uneven, which will cause the corrosion-proof coating solvent to be blocked, the coating to be loose, the adhesion to be significantly reduced, and in severe cases, the corrosion-proof coating will be completely invalid. In addition, when spraying the corners of the steel structure, it is difficult to adjust the amount of corrosion-proof coating in time, resulting in more serious sagging phenomenon at the corners of the steel structure. SUMMARY

[0004] In order to overcome the shortcomings in the prior art, the present application provides a corrosion-proof spraying device for a bridge column steel structure connecting component.

[0005] Technical solution: a kind of anticorrosion spraying device of bridge column steel structure connecting component, including handle, the upper side of the handle is provided with spraying pipe, still including throttling mechanism, throttling mechanism is arranged in the spraying pipe, the lower side of the spraying pipe is provided with steering mechanism, steering mechanism includes guide rail, the upper side of the handle is symmetrically provided with the guide rail, the guide rail is provided with positioning mechanism, electric sliding block is slidably connected in the guide rail, guiding column is fixedly connected on the electric sliding block, conical table and friction wheel A are slidably connected on the guiding column, compression spring A is arranged between the conical table and the electric sliding block, the conical table is fixedly connected with the friction wheel A, one end of the guiding column is rotatably connected with vertical shaft, the spraying pipe is fixedly connected with the vertical shaft, the vertical shaft is fixedly sleeved with friction wheel B for cooperation with the friction wheel A, the guide rail is symmetrically fixedly connected with support A, one side of the support A is fixedly connected with wedge-shaped strip A for cooperation with the conical table.

[0006] Furthermore, it is particularly preferred that the steering mechanism further comprises a friction strip A, the support A is fixedly connected with the friction strip A, and the outer wall of the vertical shaft is fixedly sleeved with a guide wheel for cooperation with the friction strip A.

[0007] Furthermore, it is particularly preferred that the steering mechanism further comprises a support C, the guide rail is fixedly connected with the support C, and one side of the support C is fixedly connected with a wedge-shaped strip B for cooperation with the conical table.

[0008] Furthermore, it is particularly preferred that the steering mechanism further comprises a friction strip B, one side of the support C is fixedly connected with the friction strip B for cooperation with the guide wheel.

[0009] Furthermore, it is particularly preferred that the steering mechanism further comprises a plug-in seat, one side of the guide rail is fixedly connected with the plug-in seat, a plug rod is inserted in the plug-in seat, one end of the plug rod is fixedly connected with a wedge-shaped strip C for cooperation with the conical table, and is fixedly connected with a friction strip C for cooperation with the guide wheel.

[0010] Furthermore, it is particularly preferred that the throttling mechanism comprises a wedge-shaped block, the support C is symmetrically fixedly connected with the wedge-shaped block, the outer wall of the vertical shaft is slidably sleeved with a disc for cooperation with the wedge-shaped block, a tension spring is arranged between the disc and the spraying pipe, the top of the disc is fixedly connected with a sliding frame, the sliding frame is slidably connected with the spraying pipe in a through manner, and a plurality of throttling blocks uniformly distributed are fixedly connected on the sliding frame.

[0011] Furthermore, it is particularly preferred that the throttling mechanism further comprises a throttling strip, a groove is formed in one side of the wedge-shaped block, the throttling strip is inserted in the groove of the wedge-shaped block, the bottom of the throttling strip is fixedly connected with a friction strip D for cooperation with the guide wheel through a mounting plate, and the bottom of the friction strip D is fixedly connected with a wedge-shaped strip D for cooperation with the conical table through a vertical plate.

[0012] Furthermore, it is particularly preferred that the positioning mechanism comprises a universal shaft, the top end of the handle is hinged with the universal shaft, one end of the universal shaft is fixedly connected with a vertical rod, a reset spring is arranged between the vertical rod and the handle, and one end of the vertical rod is fixedly connected with the mounting seat, both of the guide rails are hinged with the mounting seat, and the mounting seat is provided with an electric push rod, the telescopic end of the electric push rod is symmetrically hinged with a connecting rod, and the connecting rod is hinged with the guide rail.

[0013] Furthermore, it is particularly preferred that the positioning mechanism further comprises the supporting plate, the other side of the guide rail is fixedly connected with the supporting plate, one side of the supporting plate is provided with a positioning rod, and the positioning rod is provided with an elastic telescopic rod A.

[0014] Furthermore, it is particularly preferred that the positioning mechanism further comprises a positioning plate, the lower side of the mounting seat is provided with the positioning plate, and the positioning plate is provided with an elastic telescopic rod B.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. By designing the positioning mechanism, the spraying direction of the spraying pipe can be perpendicular to the steel structure, preventing the anticorrosive coating from being sprayed on the steel structure to produce a sagging phenomenon. By designing the throttling mechanism, when the spraying pipe sprays the corner of the steel structure, the spraying amount of the spraying pipe can be reduced, further preventing the anticorrosive coating from producing a sagging phenomenon. By designing the friction wheel A and the friction wheel B, the spraying pipe can be limited during the movement of the electric sliding block, preventing the spraying pipe from rotating arbitrarily. By extruding the conical frustum with the wedge-shaped strip A, a gap can be generated between the friction wheel A and the friction wheel B, so that the spraying pipe can move.

[0017] 2. By designing the throttling strip, the rotation angle of the spraying pipe can be controlled according to whether the steel structure is provided with a rib plate. By designing the friction strip C and the friction strip D, when the steel structure is provided with a rib plate, the spraying pipe can reciprocatingly rotate, so that the rib plate can be sprayed with anticorrosive coating. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the whole application;

[0019] Figure 2 It is an installation schematic view of the guide rail of the application;

[0020] Figure 3 It is a structural schematic view of the steering mechanism of the application;

[0021] Figure 4 It is an installation schematic view of the guide wheel of the application;

[0022] Figure 5 The installation schematic diagram at the wedge-shaped strip A of the present application;

[0023] Figure 6 The installation schematic diagram at the wedge-shaped strip B of the present application;

[0024] Figure 7 The installation schematic diagram at the plug-in base of the present application;

[0025] Figure 8 The installation schematic diagram at the wedge-shaped strip D of the present application;

[0026] Figure 9 The structural schematic diagram of the throttling mechanism of the present application;

[0027] Figure 10 The structural schematic diagram of the positioning mechanism of the present application;

[0028] Figure 11 The installation schematic diagram at the positioning rod of the present application.

[0029] In the figure: 1, handle, 101, spraying pipe, 201, guide rail, 202, electric sliding block, 203, guide column, 204, cone, 205, friction wheel A, 206, vertical shaft, 207, friction wheel B, 208, support A, 209, wedge-shaped strip A, 301, friction strip A, 302, guide wheel, 401, support C, 402, wedge-shaped strip B, 501, friction strip B, 601, plug-in base, 602, plug-in rod, 603, wedge-shaped strip C, 604, friction strip C, 701, wedge-shaped block, 702, sliding frame, 703, throttling block, 704, throttling strip, 801, friction strip D, 802, wedge-shaped strip D, 901, universal shaft, 902, vertical rod, 1001, mounting seat, 1002, electric push rod, 1003, connecting rod, 1101, support plate, 1102, positioning rod, 1103, positioning plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0031] Example 1

[0032] A kind of bridge column steel structure connecting member's anticorrosion spraying device, such as Figures 1-4As shown, including the handle 1, the upper side of the handle 1 is provided with a spraying pipe 101, also including a throttling mechanism, the throttling mechanism is arranged in the spraying pipe 101, the throttling mechanism is used for controlling the spraying amount of the spraying pipe 101, the lower side of the spraying pipe 101 is provided with a steering mechanism, the steering mechanism includes a guide rail 201, the upper side of the handle 1 is symmetrically provided with the guide rail 201, the guide rail 201 is provided with a positioning mechanism, the positioning mechanism is used for making the spraying direction of the spraying pipe 101 perpendicular to the steel structure, the guide rail 201 is slidably connected with an electric sliding block 202, the electric sliding block 202 is fixedly connected with a guide column 203, the guide column 203 is vertically and slidably sleeved with a cone 204 and a friction wheel A 205, a compression spring A is arranged between the cone 204 and the electric sliding block 202, the compression spring A is sleeved on the outer wall of the guide column 203, the cone 204 is fixedly connected with the friction wheel A 205, the top end of the guide column 203 is rotatably connected with a vertical shaft 206, the bottom end of the spraying pipe 101 is fixedly connected with the top end of the vertical shaft 206, the outer wall of the vertical shaft 206 is fixedly sleeved with a friction wheel B 207 used in cooperation with the friction wheel A 205, when the friction wheel A 205 is in contact with the friction wheel B 207, the spraying pipe 101 cannot rotate, the side of the two guide rails 201 close to each other is symmetrically fixedly connected with a support A 208, one side of the support A 208 is fixedly connected with a wedge strip A 209 used in cooperation with the cone 204.

[0033] As shown in Figures 3-5 , the steering mechanism further comprises a friction strip A 301, the support A 208 is fixedly connected with the friction strip A 301, the outer wall of the vertical shaft 206 is fixedly sleeved with a guide wheel 302 used in cooperation with the friction strip A 301, when the guide wheel 302 is in contact with the friction strip A 301, the spraying pipe 101 can be rotated.

[0034] As shown in Figures 6-8 , the steering mechanism further comprises a support C 401, the side of the two guide rails 201 away from each other is fixedly connected with the support C 401, the side of the two supports C 401 close to each other is fixedly connected with a wedge strip B 402 used in cooperation with the cone 204.

[0035] As shown in Figures 6-8 , the steering mechanism further comprises a friction strip B 501, the side of the two supports C 401 close to each other is fixedly connected with the friction strip B 501 used in cooperation with the guide wheel 302, the friction strip B 501 is located on the upper side of the wedge strip B 402.

[0036] As shown in Figure 7 and Figure 8 , the steering mechanism further comprises a plug-in seat 601, the side of the two guide rails 201 close to each other is fixedly connected with the plug-in seat 601, the plug-in seat 601 is inserted with a plug rod 602, the ends of the two plug rods 602 away from each other are fixedly connected with a wedge strip C 603 used in cooperation with the cone 204, and are fixedly connected with a friction strip C 604 used in cooperation with the guide wheel 302.

[0037] like Figures 6-9 As shown, the throttling mechanism includes a wedge block 701. The wedge block 701 is symmetrically fixed on the bracket C401. A disc that works with the wedge block 701 is vertically slidably sleeved on the outer wall of the vertical shaft 206. A tension spring is provided between the disc and the spray pipe 101. A sliding frame 702 is fixedly connected to the top of the disc. When the disc contacts the wedge block 701, the sliding frame 702 can be lowered. The sliding frame 702 is slidably connected to the spray pipe 101 through the disc. Three evenly distributed throttling blocks 703 are fixedly connected to the sliding frame 702. When the throttling blocks 703 move, the spray amount of the spray pipe 101 can be reduced.

[0038] like Figures 6-8 As shown, the throttling mechanism also includes a throttling strip 704. The top of the two adjacent wedge blocks 701 that are close to each other are provided with grooves. The throttling strip 704 is inserted into the grooves of the two adjacent wedge blocks 701. The bottom of the throttling strip 704 is fixedly connected to a friction strip D801 that cooperates with the guide wheel 302 through a mounting plate. The mounting plate is L-shaped. The bottom of the friction strip D801 is fixedly connected to a wedge strip D802 that cooperates with the cone 204 through a vertical plate.

[0039] like Figure 10 and Figure 11 As shown, the positioning mechanism includes a universal joint 901. The top of the handle 1 is hinged to the universal joint 901. One end of the universal joint 901 is fixed to a vertical rod 902. A return spring is provided between the vertical rod 902 and the handle 1. The return spring is sleeved on the outer wall of the universal joint 901. The top of the vertical rod 902 is fixed to a mounting base 1001. Both guide rails 201 are hinged to the mounting base 1001. An electric push rod 1002 is mounted on the mounting base 1001. The telescopic end of the electric push rod 1002 is symmetrically hinged to a connecting rod 1003. The connecting rod 1003 is hinged to the guide rail 201. When the telescopic end of the electric push rod 1002 extends, it can merge the two guide rails 201.

[0040] like Figure 10 and Figure 11 As shown, the positioning mechanism also includes a support plate 1101. The support plate 1101 is fixed to the side of the two guide rails 201 that are far apart from each other. The positioning rod 1102 is provided on the side of the two support plates 1101 that are close to each other. An elastic telescopic rod A is provided between the positioning rod 1102 and the support plate 1101.

[0041] like Figure 10 and Figure 11 As shown, the positioning mechanism also includes a positioning plate 1103. The positioning plate 1103 is provided on the lower side of the mounting base 1001. The positioning plate 1103 is used to contact the steel structure. An elastic telescopic rod B is provided between the front side of the positioning plate 1103 and the mounting base 1001.

[0042] Initially, the telescopic end of the electric push rod 1002 is in a retracted state, the friction wheel A 205 is in contact with the friction wheel B 207, the spraying pipe 101 cannot rotate, there is a gap between the two guide rails 201, the handle 1 and the vertical rod 902 are both in a vertical state, and the spraying angle of the spraying pipe 101 is divided into two states according to the shape of the steel structure, as shown in Figure 1 The first state is that the web of the steel structure is in a smooth state, at this time the worker first lifts the handle 1, the handle 1 drives the mounting seat 1001 to move through the universal shaft 901 and the return spring, the mounting seat 1001 drives the two guide rails 201 to move, and the positioning plate 1103 is driven to move by the elastic telescopic rod B, so that the positioning plate 1103 is in contact with the outer wall of the steel structure. Since the connection of the bridge column steel structure is relatively high, only by lifting the handle 1 by the worker, it is not possible to ensure that the positioning plate 1103 is completely in contact with the steel structure, and there will be a gap between the positioning plate 1103 and the steel structure. At this time, the electric push rod 1002 is started, the telescopic end of the electric push rod 1002 applies a pushing force to the two guide rails 201 through the two connecting rods 1003, the two guide rails 201 rotate towards each other with the mounting seat 1001 as the center, and drive the positioning rods 1102 to move through the support plates 1101 and the elastic telescopic rods A respectively, then the two positioning rods 1102 are in contact with the outer wall of the steel structure respectively. At this time, there is still a gap between the two positioning rods 1102, and they are inclined relative to the steel structure. The two guide rails 201 continue to rotate, so that the outer walls of the two positioning rods 1102 press the outer wall of the steel structure. The steel structure exerts a counter force on the two positioning rods 1102, which is transmitted to the mounting seat 1001 through the elastic telescopic rods A, the support plates 1101 and the guide rails 201, so that the mounting seat 1001 moves towards the side close to the steel structure. At this time, the steel structure exerts a pressing force on the positioning plate 1103, and the positioning plate 1103 moves towards the side close to the mounting seat 1001 under the action of the pressing force. The telescopic end of the elastic telescopic rod B is retracted under the action of the force, and the positioning plate 1103 rotates relative to the steel structure under the action of the pressing force of the steel structure. The positioning plate 1103 exerts a force on the vertical rod 902 through the elastic telescopic rod B and the mounting seat 1001, the vertical rod 902 rotates with the handle 1 as the center under the action of the force, and the return spring deforms under the action of the force. Until the two guide rails 201 are combined, then the telescopic end of the electric push rod 1002 is controlled not to extend any more. At this time, the positioning plate 1103 is completely in contact with the outer wall of the steel structure, and the spraying pipe 101 is perpendicular to the steel structure, thereby completing the positioning of the spraying pipe 101. Through the above steps, the spraying direction of the spraying pipe 101 can be perpendicular to the steel structure, preventing the anticorrosive coating from flowing.

[0043] Then control the electric sliding block 202 along the left guide rail 201 to the back side, the electric sliding block 202 through the guide column 203 cone 204, friction wheel A 205 and vertical shaft 206 movement, vertical shaft 206 drive spray pipe 101, friction wheel B 207 and guide wheel 302 movement, while opening spray pipe 101, make spray pipe 101 will be anticorrosive paint sprayed on the steel structure, then cone 204 and left front bracket A 208 on the back side of the wedge strip A 209 contact, wedge strip A 209 to the cone 204 extrusion, cone 204 force drive friction wheel A 205 along the outer wall of guide column 203 down, compression spring A force shrink, friction wheel A 205 after sliding no longer with friction wheel B 207 contact, friction wheel B 207 disengagement makes vertical shaft 206 can move, at the same time, guide wheel 302 and left front bracket A 208 on the friction strip A 301 contact, guide wheel 302 through with friction strip A 301 friction drive vertical shaft 206 to guide column 203 connection as the center of rotation, vertical shaft 206 drive spray pipe 101 and friction wheel B 207 rotation, spray pipe 101 through the sliding frame 702 drive disc rotation, until the cone 204 over wedge strip A 209 and no longer with its contact, cone 204 disengagement can move, compression spring A release drive cone 204 upward, cone 204 drive friction wheel A 205 lift, friction wheel A 205 lift after with friction wheel B 207 fit, and through friction wheel B 207 to vertical shaft 206 limit, in turn, make spray pipe 101 can't rotate, then cone 204 and left side bracket C 401 on the wedge strip B 402 contact, wedge strip B 402 to the cone 204 extrusion, cone 204 force drive friction wheel A 205 down, compression spring A force shrink, in turn, make vertical shaft 206 can move, at the same time, guide wheel 302 and left friction strip B 501 contact, guide wheel 302 through with friction strip B 501 friction drive vertical shaft 206 to guide column 203 connection as the center of rotation, vertical shaft 206 drive spray pipe 101 and friction wheel B 207 rotation, spray pipe 101 through the sliding frame 702 drive disc rotation, at the same time, the disc at the bottom of the sliding frame 702 and left front wedge block 701 contact, wedge block 701 to the disc extrusion, disc force through the sliding frame 702 drive three throttle block 703 down movement, tension spring force extension, three throttle block 703 down after the spray pipe 101 nozzle shielding, make spray pipe 101 spray anticorrosive paint quantity reduces, thus can prevent spray pipe 101 to the corner of the steel structure for spraying, spray pipe 101 spray anticorrosive paint quantity too much, lead to the corner of the steel structure produces sagging phenomenon, effectively improve the anticorrosive coating spraying quality.

[0044] Subsequently, the taper 204 and the guide wheel 302 move to the recesses of the left wedge strip B402 and the friction strip B501 respectively, the taper 204 no longer contacts and passes the wedge strip B402, the guide wheel 302 no longer contacts and passes the friction strip B501, the compression spring A releases to drive the taper 204 and the friction wheel A 205 to lift, thereby making the spraying pipe 101 no longer rotate, at the same time, the disc at the bottom of the sliding frame 702 passes the left front wedge block 701, the disc can move after being released from the restriction, the tension spring contracts and drives the three throttle blocks 703 to move back through the disc and the sliding frame 702, after the throttle blocks 703 reset, the spraying amount of the spraying pipe 101 restores, the electric sliding block 202 continues to move, making the spraying pipe 101 spray the anticorrosive coating on the surface of the steel structure, then the taper 204 and the guide wheel 302 contact the left wedge strip B402 and the friction strip B501 again, thereby making the spraying pipe 101 rotate, at the same time, the disc at the bottom of the sliding frame 702 contacts the left rear wedge block 701, thereby making the three throttle blocks 703 move downward, reducing the amount of anticorrosive coating sprayed by the spraying pipe 101, until the taper 204 and the guide wheel 302 pass the left wedge strip B402 and the friction strip B501 respectively, thereby making the spraying pipe 101 no longer rotate, at the same time, the disc at the bottom of the sliding frame 702 passes the left rear wedge block 701, thereby making the three throttle blocks 703 move back, then the electric sliding block 202 continues to move, and the taper 204, the guide wheel 302 and the disc at the bottom of the sliding frame 702 contact the remaining wedge strip A209, wedge strip B402, wedge block 701, friction strip A301 and friction strip B501 respectively, repeating the above steps and achieving the same effect, until the electric sliding block 202 slides to the initial position, thereby completing the anticorrosive coating spraying work on the steel structure.

[0045] As Figure 2As shown, the second state is provided with a rib plate at the web of the steel structure, by setting the rib plate at the web of the steel structure, the strength of the steel structure can be effectively improved, in the second state, the spraying pipe 101 needs to be reciprocatingly rotated to the rib plate, and the amount of anticorrosive paint sprayed by the spraying pipe 101 is reduced, thereby preventing the anticorrosive paint sprayed by the spraying pipe 101 from producing sagging phenomenon at the connection between the rib plate and the steel structure, before the handle 1 is lifted, the plug rod 602 is inserted into the plug seat 601, and the throttle strip 704 is inserted into the groove of the adjacent two wedge-shaped blocks 701, and then the above steps are repeated, so that the spraying pipe 101 sprays the surface of the steel structure with anticorrosive paint, it is worth noting that, taking the left wedge-shaped strip D802 as an example, when the frustum 204 and the guide wheel 302 move to the recesses of the left wedge-shaped strip B402 and the friction strip B501 respectively, the frustum 204 will be in contact with the left wedge-shaped strip D802, the wedge-shaped strip D802 will continue to extrude the frustum 204, thereby enabling the spraying pipe 101 to continue to move, at the same time, the guide wheel 302 and the friction strip D801 produce friction, so that the spraying pipe 101 rotates, thereby enabling the spraying pipe 101 to spray the surface of the rib plate with anticorrosive paint, when the disc at the bottom end of the sliding frame 702 passes the left front wedge-shaped block 701, the throttle strip 704 continues to extrude the disc at the bottom end of the sliding frame 702, thereby enabling the three throttle blocks 703 to keep shielding the nozzle of the spraying pipe 101, so that the amount of anticorrosive paint sprayed by the spraying pipe 101 is reduced, thereby preventing the anticorrosive paint sprayed by the spraying pipe 101 from being too much when the spraying pipe 101 sprays the connection between the rib plate and the steel structure, resulting in sagging phenomenon at the connection between the rib plate and the steel structure, thereby further improving the spraying quality of the anticorrosive coating, then the frustum 204 passes the left wedge-shaped strip D802 and comes into contact with the left wedge-shaped strip C603, thereby enabling the spraying pipe 101 to continue to move, at the same time, the guide wheel 302 passes the left friction strip D801 and comes into friction with the friction strip C604, thereby enabling the spraying pipe 101 to rotate in the opposite direction, until the frustum 204 and the guide wheel 302 come into contact with the left wedge-shaped strip B402 and the friction strip B501 again, and the above steps are repeated to achieve the same effect.

[0046] Through the above steps, the rotation angle of the spraying pipe 101 can be controlled according to whether the steel structure is provided with a rib plate, thereby ensuring the spraying effect of the anticorrosive paint.

[0047] After the anticorrosive paint spraying work is completed, the electric sliding block 202 slides to the initial position, the spraying pipe 101 is closed, the extension end of the electric push rod 1002 is retracted, the extension end of the electric push rod 1002 exerts a pulling force on the two guide rails 201 through the two connecting rods 1003, the two guide rails 201 rotate to reset with the connection between the mounting seat 1001 as the center, and the elastic extension rods A and B are both reset by releasing the extension, and drive the positioning rods 1102 and the positioning plates 1103 to move to reset, respectively.

[0048] The above embodiments are provided to persons skilled in the art to implement or use the present application, and the persons skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive idea of the present application, and thus the protection scope of the present application is not limited by the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A corrosion-resistant spraying device for steel structure connecting components of bridge columns, comprising a handle (1), wherein a spraying pipe (101) is provided on the upper side of the handle (1), characterized in that: It also includes a throttling mechanism. The spray pipe (101) is equipped with a throttling mechanism. The lower side of the spray pipe (101) is equipped with a steering mechanism. The steering mechanism includes a guide rail (201). The guide rail (201) is symmetrically arranged on the upper side of the handle (1). The guide rail (201) is equipped with a positioning mechanism. An electric slider (202) is slidably connected in the guide rail (201). A guide post (203) is fixedly connected to the electric slider (202). A cone (204) and a friction wheel A (205) are slidably sleeved on the guide post (203). The cone (204) and the friction wheel A (205) are slidably sleeved on the guide post (203). A compression spring A is provided between the electric sliders (202). The cone (204) is fixedly connected to the friction wheel A (205). One end of the guide post (203) is rotatably connected to a vertical shaft (206). The spray pipe (101) is fixedly connected to the vertical shaft (206). A friction wheel B (207) that works with the friction wheel A (205) is fixedly sleeved on the vertical shaft (206). A bracket A (208) is symmetrically fixedly connected to the guide rail (201). A wedge-shaped strip A (209) that works with the cone (204) is fixedly connected to one side of the bracket A (208).

2. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 1, characterized in that: The steering mechanism also includes a friction strip A (301), which is fixedly connected to the bracket A (208), and a guide wheel (302) that works with the friction strip A (301) is fixedly sleeved on the outer wall of the vertical shaft (206).

3. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 2, characterized in that: The steering mechanism also includes a bracket C (401), which is fixedly connected to the guide rail (201). A wedge-shaped strip B (402) that cooperates with the truncated cone (204) is fixedly connected to one side of the bracket C (401).

4. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 3, characterized in that: The steering mechanism also includes a friction strip B (501), which is fixed to one side of the bracket C (401) and is used in conjunction with the guide wheel (302).

5. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 4, characterized in that: The steering mechanism also includes a connector (601), which is fixed to one side of the guide rail (201). A rod (602) is inserted into the connector (601). One end of the rod (602) is fixed to a wedge-shaped strip C (603) that cooperates with the truncated cone (204) and a friction strip C (604) that cooperates with the guide wheel (302).

6. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 4, characterized in that: The throttling mechanism includes a wedge block (701), the wedge block (701) is symmetrically fixed on the bracket C (401), the outer wall of the vertical shaft (206) is slidably fitted with a disc that cooperates with the wedge block (701), a tension spring is provided between the disc and the spray pipe (101), a sliding frame (702) is fixed on the top of the disc, the sliding frame (702) is slidably connected to the spray pipe (101) through, and a number of evenly distributed throttling blocks (703) are fixed on the sliding frame (702).

7. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 6, characterized in that: The throttling mechanism also includes a throttling strip (704). A groove is provided on one side of the wedge block (701). The throttling strip (704) is inserted into the groove of the wedge block (701). A friction strip D (801) that cooperates with the guide wheel (302) is fixed to the bottom of the throttling strip (704) through a mounting plate. A wedge strip D (802) that cooperates with the truncated cone (204) is fixed to the bottom of the friction strip D (801) through a vertical plate.

8. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 1, characterized in that: The positioning mechanism includes a universal joint (901), the top of the handle (1) is hinged to the universal joint (901), one end of the universal joint (901) is fixed to a vertical rod (902), a return spring is provided between the vertical rod (902) and the handle (1), one end of the vertical rod (902) is fixed to a mounting base (1001), both guide rails (201) are hinged to the mounting base (1001), an electric push rod (1002) is mounted on the mounting base (1001), the telescopic end of the electric push rod (1002) is symmetrically hinged to a connecting rod (1003), and the connecting rod (1003) is hinged to the guide rail (201).

9. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 8, characterized in that: The positioning mechanism also includes a support plate (1101), the support plate (1101) is fixed to the other side of the guide rail (201), a positioning rod (1102) is provided on one side of the support plate (1101), and an elastic telescopic rod A is provided between the positioning rod (1102) and the support plate (1101).

10. The anti-corrosion spraying device for steel structure connecting components of bridge columns according to claim 9, characterized in that: The positioning mechanism also includes a positioning plate (1103), which is provided on the lower side of the mounting base (1001), and an elastic telescopic rod B is provided between the positioning plate (1103) and the mounting base (1001).

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