Spraying device for inner wall of large steel component pipeline
By introducing components such as distance measuring sensors and rotary joints into the spraying device for the inner wall of large steel pipes, the problem of inaccurate nozzle distance adjustment was solved, uniform spraying and efficiency were achieved, and the construction environment was improved.
Patent Information
- Application Number
- CN202422444972.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-10
AI Technical Summary
Existing large steel pipe inner wall spraying devices cannot accurately adjust the distance from the nozzle to the inner side of the steel pipe, resulting in uneven spraying, low efficiency and harm to the health of construction workers.
A spraying device was designed, which included an electric trolley, a supporting sleeve, a lifting rod, a rotating motor, a rotating joint, a cross bar, a distance sensor and other components. The distance from the nozzle to the inner side of the steel pipe was measured and adjusted by the distance sensor to ensure the spraying quality.
It has improved the spraying quality, reduced paint waste, increased work efficiency, improved the construction environment, and protected the health of workers.
Smart Images
Figure CN223417527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of large-scale steel component pipeline inner wall spraying, in particular to a large-scale steel component pipeline inner wall spraying device. Background Art
[0002] Steel structure bridges, stadiums, and other projects often require the manufacture of large circular components. Due to their size and high quality requirements, the interior of these components requires anti-corrosion and rust-proofing spraying. Currently, manual spraying is used, which has significant drawbacks such as low efficiency, large paint waste, uneven spraying, and poor quality. The poor ventilation inside the components is harmful to the health of construction workers and is not conducive to long-term work.
[0003] When the existing spraying device is in use, the distance between the two rotating nozzles and the inner wall of the steel component cannot be accurately measured, so the distance between the nozzles and the inner side of the steel pipe cannot be accurately adjusted, affecting the spraying effect. Utility Model Content
[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a large steel component pipe inner wall spraying device. Through the provision of a cross bar, a rotary joint, a bolt hole, a fixing bolt, a fixing block and a distance measuring sensor, the distance measuring sensor can measure the distance from the end of the cross bar to the inner side surface of the steel pipe, and adjust the protruding length of the cross bar in the rotary joint according to the measured distance to ensure that the distance from the nozzle to the inner side surface of the steel pipe meets the spraying requirements, thereby ensuring the spraying quality, and can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large steel structure pipe inner wall spraying device, comprising an electric trolley and a support sleeve arranged on the upper side of the electric trolley, a lifting rod is arranged on the inner side of the support sleeve, a rotating motor is installed on the upper end of the lifting rod, a rotating joint is provided at the output end of the rotating motor, a cross bar is installed on the rotating joint, a fixed block is provided at the end of the cross bar away from the rotating joint, a nozzle is provided on the fixed block, a distance measuring sensor is provided on the inner side of the end of the cross bar close to the fixed block, a screw rod is provided on a side surface of the upper end of the lifting rod, a worm gear transmission box is provided on the outer side of the lower part of the screw rod, a handwheel is connected to the worm gear transmission box, a bolt hole is provided at the end of the cross bar close to the rotating joint, and a fixing bolt is provided on the rotating joint.
[0006] Furthermore, an air compressor is provided on the upper side of the electric trolley, and a rope ring is welded at the center of one side of the electric trolley.
[0007] Furthermore, a paint tube is connected to the nozzle, and the paint tube is connected to the nozzle via a thread.
[0008] Further, the air compressor is connected with the electric trolley through bolts, the supporting sleeve is welded with the electric trolley, and the screw rod is connected with the inside of the worm gear transmission box through a nut.
[0009] Further, the rotary joint is connected with the coating pipe through a pipe clamp, and the cross rod is connected with the rotary joint through the bolt hole and the fixing bolt.
[0010] Further, the electric trolley is provided with wheels at four corners, and the rotary motor is connected with the lifting rod through bolts.
[0011] Further, the lifting rod is slidably connected with the supporting sleeve, and the upper end of the screw rod is connected with the lifting rod through a bearing.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] 1. The utility model discloses a cross rod, a rotary joint, a bolt hole, a fixing bolt, a fixed block and a distance measuring sensor are arranged, the distance measuring sensor can measure the distance from the cross rod end to the inner side of the steel pipe, the extension length of the cross rod in the rotary joint is adjusted according to the measured distance, the distance from the spray head to the inner side of the steel pipe meets the spraying requirement, and then the spraying quality is guaranteed. DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is a structural schematic view of the utility model Figure 1 It is an enlarged structural schematic view of A in the utility model;
[0016] Figure 3 It is an enlarged structural schematic view of B in the utility model Figure 1 It is an enlarged structural schematic view of B in the utility model;
[0017] Figure 4 It is a top view structural schematic view of the electric trolley in the utility model Figure 1 It is a top view structural schematic view of the electric trolley in the utility model.
[0018] In the drawing: 1, electric trolley;2, supporting sleeve;3, lifting rod;4, hand wheel;5, screw rod;6, air compressor;7, rotary motor;8, cross rod;9, rotary joint;10, coating pipe;11, spray head;12, worm gear transmission box;13, fixed block;14, bolt hole;15, fixing bolt;16, rope ring;17, distance measuring sensor. CONCRETE IMPLEMENTATION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0020] Please refer to Figures 1-4 The embodiment provides a technical scheme: a large steel member pipeline inner wall spraying device, which comprises an electric trolley 1 and a supporting sleeve 2 arranged on the upper side of the electric trolley 1, a lifting rod 3 is arranged on the inner side of the supporting sleeve 2, a rotating motor 7 is installed on the upper end of the lifting rod 3, a rotating joint 9 is arranged on the output end of the rotating motor 7, a cross bar 8 is installed on the rotating joint 9, a fixed block 13 is arranged on the end of the cross bar 8 away from the rotating joint 9, a spray head 11 is arranged on the fixed block 13, a distance measuring sensor 17 is arranged on the inner side of the end of the cross bar 8 close to the fixed block 13, a lead screw 5 is arranged on one side surface of the upper end of the lifting rod 3, a worm and gear transmission box 12 is arranged on the outer side of the lower part of the lead screw 5, a hand wheel 4 is connected to the worm and gear transmission box 12, a bolt hole 14 is arranged on the end of the cross bar 8 close to the rotating joint 9, and a fixing bolt 15 is arranged on the rotating joint 9.
[0021] As Figures 1-4 shown, when the inner side of the steel pipe is rust-proof sprayed, the electric trolley 1 is put into the inner side of the steel pipe, the height of the rotating motor 7 rotating shaft center is adjusted according to the diameter size of the steel pipe, the inner side worm of the worm and gear transmission box 12 is driven to rotate by the hand wheel 4, the inner side lead screw nut is driven to rotate by the worm, the lead screw 5 moves up and down along the worm and gear transmission box 12, the height of the lifting rod 3 is adjusted, and then the height of the rotating motor 7 is adjusted, then the cross bar 8 is moved from the rotating joint 9, the distance from the inner side of the steel pipe is measured by the distance measuring sensor 17 on the end of the cross bar 8, after the distance is adjusted, the fixing bolt 15 is fixed on the bolt hole 14 of the cross bar 8, the cross bar 8 is connected and fixed with the rotating joint 9, the compressed gas and the rust-proof coating are mixed by the air compressor 6 and then sent into the coating pipe 10, finally the inner side of the steel pipe is sprayed by the spray head 11, the rotating motor 7 drives the rotating joint 9 and the cross bar 8 to rotate, and then the spray head 11 uniformly sprays the inner side of the steel pipe, at the same time, the electric trolley 1 moves along the steel pipe, so that the spraying device can uniformly spray and process the inner side of the steel pipe.
[0022] The upper side of the electric trolley 1 is provided with an air compressor 6, a rope ring 16 is welded on one side center of the electric trolley 1, a rope can be tied on the rope ring 16, when the electric trolley 1 is out of power, the electric trolley 1 can be manually pulled to move, and then the inner side of the steel pipe is sprayed.
[0023] The spray head 11 is connected to a paint tube 10 , and the paint tube 10 and the spray head 11 are connected via threads.
[0024] The air compressor 6 is connected to the electric trolley 1 through bolts, the support sleeve 2 is welded to the electric trolley 1, and the lead screw 5 is connected to the inner side of the worm gear transmission box 12 through nuts.
[0025] The rotary joint 9 is connected to the paint pipe 10 through a pipe clamp, and the cross bar 8 is connected to the rotary joint 9 through a bolt hole 14 and a fixing bolt 15.
[0026] The electric trolley 1 is provided with wheels at the four corners, and the rotary motor 7 is connected to the lifting rod 3 by bolts.
[0027] The lifting rod 3 is slidably connected to the support sleeve 2, and the upper end of the screw rod 5 is connected to the lifting rod 3 through a bearing.
[0028] The working principle of the large steel component pipeline inner wall spraying device provided by the utility model is as follows: Figures 1-4 As shown, when the inner side of the steel pipe is sprayed with anti-rust paint, the electric trolley 1 is placed inside the steel pipe, and the height of the center of the rotating shaft of the rotating motor 7 is adjusted according to the diameter of the steel pipe. The worm gear inside the worm gear transmission box 12 is driven by the handwheel 4 to rotate, and the worm gear drives the inner screw nut to rotate, so that the screw 5 moves up and down along the worm gear transmission box 12, so that the height of the lifting rod 3 is adjusted, and then the height of the rotating motor 7 is adjusted, and then the cross bar 8 is moved from the rotary joint 9, and the distance sensor 17 at one end of the cross bar 8 measures the height. Measure the distance to the inner side of the steel pipe. After the distance is adjusted, fix it on the bolt hole 14 of the cross bar 8 with the fixing bolt 15, so that the cross bar 8 is connected and fixed to the rotary joint 9. The air compressor 6 mixes the pressurized gas and anti-rust paint and sends it into the paint pipe 10. Finally, it is sprayed onto the inner side of the steel pipe through the nozzle 11. The rotating motor 7 drives the rotary joint 9 and the cross bar 8 to rotate, so that the nozzle 11 evenly sprays the inner side of the steel pipe. While spraying, the electric trolley 1 moves along the steel pipe, so that the spraying device can evenly spray the inner side of the steel pipe.
[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A large steel structure pipeline inner wall spraying device, comprising an electric trolley (1) and a support sleeve (2) arranged on the upper side of the electric trolley (1), characterized in that: A lifting rod (3) is provided on the inner side of the support sleeve (2), a rotating motor (7) is installed on the upper end of the lifting rod (3), a rotating joint (9) is provided on the output end of the rotating motor (7), a cross bar (8) is installed on the rotating joint (9), a fixed block (13) is provided on the end of the cross bar (8) away from the rotating joint (9), a nozzle (11) is provided on the fixed block (13), a distance sensor (17) is provided on the inner side of the end of the cross bar (8) close to the fixed block (13), a screw rod (5) is provided on the side of the upper end of the lifting rod (3), a worm gear transmission box (12) is provided on the outer side of the lower part of the screw rod (5), a hand wheel (4) is connected to the worm gear transmission box (12), a bolt hole (14) is provided on the end of the cross bar (8) close to the rotating joint (9), and a fixing bolt (15) is provided on the rotating joint (9).
2. A large steel component pipe inner wall spraying device according to claim 1, characterized in that: An air compressor (6) is provided on the upper side of the electric trolley (1), and a rope ring (16) is welded at the center of one side of the electric trolley (1).
3. The large steel component pipe inner wall spraying device according to claim 1 is characterized in that: The spray head (11) is connected to a paint tube (10), and the paint tube (10) is connected to the spray head (11) via a thread.
4. A large steel component pipe inner wall spraying device according to claim 2, characterized in that: The air compressor (6) is connected to the electric trolley (1) via bolts, the support sleeve (2) is welded to the electric trolley (1), and the lead screw (5) is connected to the inner side of the worm gear transmission box (12) via nuts.
5. The large steel component pipe inner wall spraying device according to claim 3 is characterized in that: The rotary joint (9) is connected to the paint pipe (10) via a pipe clamp, and the cross bar (8) is connected to the rotary joint (9) via the bolt hole (14) and the fixing bolt (15).
6. The large steel component pipe inner wall spraying device according to claim 1, characterized in that: The electric trolley (1) is provided with wheels at four corners, and the rotary motor (7) is connected to the lifting rod (3) via bolts.
7. The large steel component pipe inner wall spraying device according to claim 1, characterized in that: The lifting rod (3) is slidably connected to the supporting sleeve (2), and the upper end of the screw rod (5) is connected to the lifting rod (3) via a bearing.