Bridge tunnel maintenance uses rust and paint removal machine

CN224927661UActive Publication Date: 2026-11-03CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING BUREAU GROUP FOURTH ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202522563907.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-11-03
Estimated Expiration
2035-12-03

AI Technical Summary

Technical Problem

Existing rust and paint removal machines for bridge and tunnel maintenance suffer from problems such as lubricant waste and shortened grinding disc life, especially due to excessive waste caused by continuous lubricant delivery by the pump and shortened grinding disc life caused by high temperature.

Method used

An intermittent oil supply system is adopted, in which the sealing plate is driven to slide back and forth inside the column through the drive mechanism to control the supply of lubricating oil. Combined with the cooling components, a water tank and spray nozzles are used to cool down the rust removal and paint removal process.

Benefits of technology

It reduces lubricant waste, extends the service life of the grinding disc, and improves the efficiency and safety of rust and paint removal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of bridge tunnel maintenance uses rust and paint removal machine, belong to bridge tunnel maintenance technical field, cylinder is installed on base, the inner chamber of cylinder is connected to oil storage barrel through oil extraction pipe on one side, the other side of inner chamber is connected to smearing lubricating mechanism through oil outlet pipe, smearing lubricating mechanism is fixedly connected on base, cylinder is slidably connected with sealing plate, sealing plate is fixedly connected with rubber pad, rubber pad is dynamically sealed with the inner chamber of cylinder, one-way valve that only allows input cylinder inner chamber is installed in oil extraction pipe, one-way valve that only allows cylinder inner chamber output is installed in oil outlet pipe, push rod is fixedly connected on sealing plate, push rod penetrates the side wall of cylinder and is slidably connected with cylinder, driving mechanism is used to drive push rod reciprocating linear movement, the utility model is supplied by intermittence, realize a little supply, avoid continuous oil supply difficult to use quickly leading to lubricating oil overflow, to reduce the waste of lubricating oil.
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Description

Technical Field

[0001] This utility model relates to the field of bridge and tunnel maintenance technology, specifically to a rust and paint removal machine used for bridge and tunnel maintenance. Background Technology

[0002] During the maintenance of bridges and tunnels, many workpieces have uneven surfaces or are corroded, so it is necessary to remove rust and paint from the workpiece surface. Rust and paint removal machines are used when removing rust and paint from workpieces.

[0003] Existing rust and paint removal machines for bridge and tunnel maintenance have overly traditional structures. They typically use brushes or wire rollers to rub against the workpiece surface. However, the friction contact surface requires manual adjustment, and when performing rust and paint removal on cylindrical workpieces, it is difficult to simultaneously rub the outer walls of the workpiece, causing significant inconvenience to workers and resulting in low work efficiency. Therefore, to address these issues, a new rust and paint removal machine for bridge and tunnel maintenance is proposed.

[0004] The existing patent (publication number CN220740642U) discloses a rust and paint removal machine for bridge and tunnel maintenance, including a base. Through the setting of an adjustable rust and paint removal mechanism, an electric push rod drives the connecting plate to rotate around the hinge point between the plate and the support, thereby adjusting the clamping angle between the polishing rollers on the two sets of connecting plates. The polishing rollers fit the workpiece more closely. The rotating motor drives the polishing rollers to rotate and rub against the workpiece through a transmission belt. The machine can adaptively adjust the contact area for tubular workpieces of different sizes, greatly improving work efficiency. After the rust and paint removal workpieces are removed, a layer of lubricating oil can be applied for protection. It is highly practical.

[0005] However, the above technical solution still has certain defects. The pump continuously pumps the lubricating oil inside the storage tank and then enters the lubrication mechanism through the pipeline. The continuous delivery of the pump leads to excessive waste of lubricating oil. At the same time, the continuous operation of the grinding disc can easily cause high temperature, which shortens the life of the grinding disc. Therefore, a rust and paint removal machine for bridge and tunnel maintenance is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a rust and paint removal machine for bridge and tunnel maintenance, which solves the technical problem in the prior art where the pump continuously pumps the lubricating oil inside the storage tank and then enters the lubrication application mechanism through the pipeline, resulting in excessive waste of lubricating oil due to the continuous delivery of the pump.

[0007] The objective of this utility model can be achieved through the following technical solutions: A rust and paint removal machine for bridge and tunnel maintenance includes a base, with a rust and paint removal assembly and a lubrication assembly mounted on the upper end of the base, wherein: The rust and paint removal assembly is installed on the upper part of the base and is used for rust and paint removal; The lubrication assembly includes a cylinder, an oil suction pipe, an oil outlet pipe, a lubrication application mechanism, and a drive mechanism. The cylinder is mounted on a base. One side of the cylinder's inner cavity is connected to an oil storage tank via the oil suction pipe, and the other side of the inner cavity is connected to the lubrication application mechanism via the oil outlet pipe. The lubrication application mechanism is fixedly connected to the base. A sealing plate is slidably connected to the cylinder, and a rubber gasket is fixedly connected to the sealing plate. The rubber gasket is dynamically sealed to the inner cavity of the cylinder. A one-way valve that only allows oil to enter the inner cavity of the cylinder is installed in the oil suction pipe, and a one-way valve that only allows oil to exit the inner cavity of the cylinder is installed in the oil outlet pipe. A push rod is fixedly connected to the sealing plate. The push rod passes through the side wall of the cylinder and is slidably connected to the cylinder. The drive mechanism is used to drive the push rod to reciprocate linearly.

[0008] The rust and paint removal machine for bridge and tunnel maintenance provided by this utility model has the following beneficial effects compared with the prior art: Start the drive mechanism, which drives the push rod to move, thereby causing the sealing plate to slide back and forth in the inner cavity of the cylinder. When the sealing plate is away from the end where the oil suction pipe and the oil outlet pipe are located, the negative pressure drives the lubricating oil in the oil storage tank to enter the cylinder through the one-way valve in the oil suction pipe. When the sealing plate is close to the end where the oil suction pipe and the oil outlet pipe are located, it drives the lubricating oil in the cylinder to enter the lubrication mechanism through the one-way valve in the oil outlet pipe for oil supply. Intermittent oil supply allows for small-volume supply at a time, avoiding the problem of continuous oil supply causing oil overflow due to difficulty in quick use, thus reducing oil waste.

[0009] Furthermore, the driving mechanism includes a motor, a turntable, a moving column, a moving frame, and a guide rod. The motor is fixedly connected to the base via a mounting bracket. The output end of the motor drives and connects to the turntable. The lower end of the turntable is connected to the moving column. The base is fixedly connected to the guide rod. The moving frame is slidably connected to the guide rod via a slider. The moving column is inserted into the moving frame. The moving frame is fixedly connected to the push rod, and the axial direction of the guide rod is parallel to the sliding direction of the sealing plate in the inner cavity of the column.

[0010] Furthermore, a threaded post is fixed at the upper end of the movable post, and a plurality of threaded holes are opened at the lower end of the turntable. The movable post is connected to a threaded hole through the threaded post.

[0011] Furthermore, it also includes an adjustment component, the fixed end of which is fixedly connected to the base, and the driving end of which is fixedly connected to a connecting column, and the rust removal and paint removal component is mounted on the connecting column.

[0012] Furthermore, it also includes a cooling assembly, which includes a water tank, a filter plate, a water pump, and a diverter block. The filter plate is installed on the upper end of the water tank, the water tank is fixedly connected to the base, the diverter block is fixedly connected to the connecting column, the output end of the water pump is connected to the inner cavity of the diverter block through a water outlet pipe, the output port of the diverter block is equipped with a nozzle, and the input end of the water pump is connected to the water tank through a water pumping pipe.

[0013] Furthermore, the nozzles on the diversion block are multiple, and all nozzles face the rust and paint removal assembly.

[0014] Furthermore, the side wall of the water tank is provided with a connecting hole, one end of which is connected to a water pumping pipe and the other end is connected to the inner cavity of the water tank, and there is a height difference between the connecting hole and the bottom of the water tank.

[0015] Furthermore, the height difference between the bottom of the connecting hole and the bottom of the water tank is not less than 100mm.

[0016] Furthermore, the upper end of the water tank is provided with a placement groove for placing the filter plate, and the placement groove is provided with a sealing hole that is connected through to the connecting hole. The filter plate is fixedly connected with a plug at the position corresponding to the sealing hole, and the plug is sealed to the sealing hole. Handles are fixedly connected to both sides of the filter plate.

[0017] Furthermore, an inclined fine filter plate is detachably connected inside the water tank, and a collection tank is detachably connected to the bottom of the water tank. The fine filter plate is inclined downward from the direction of the connecting hole to the filter tank, and the connecting hole is located below the fine filter plate. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is another isometric structural schematic diagram of the rust removal and paint removal component of this utility model; Figure 3 This is a schematic diagram of the lubrication component of this utility model; Figure 4 This is a schematic diagram showing the connection relationship between the drive mechanism and the lubrication assembly of this utility model; Figure 5 This is a cross-sectional view of the cylindrical section of this utility model; Figure 6 This is a schematic diagram showing the connection relationship between the turntable and the moving column of this utility model; Figure 7 This is an isometric structural diagram of the water tank of this utility model; Figure 8 This is a cross-sectional view of the water tank of this utility model.

[0020] In the diagram: 110-base, 120-adjustment component, 130-rust and paint removal component, 140-connecting column, 210-column, 220-oil suction pipe, 230-oil outlet pipe, 231-lubrication application mechanism, 240-rubber pad, 250-push rod, 260-moving frame, 261-slider, 262-guide rod, 270-moving column, 280-turntable, 290-motor, 291-mounting bracket, 310-water tank, 311-connecting hole, 312-placement slot, 313-fine filter plate, 314-collection slot, 320-filter plate, 321-handle, 322-plug, 330-water suction pipe, 340-water pump, 350-water outlet pipe, 360-diverter block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0026] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Please see Figure 1-5 As shown, this utility model is a rust and paint removal machine for bridge and tunnel maintenance, including a base 110. A rust and paint removal component 130 and a lubrication component are provided on the upper end of the base 110, wherein: The rust and paint removal component 130 is installed on the upper end of the base 110 and is used for rust and paint removal; The lubrication assembly includes a cylinder 210, an oil suction pipe 220, an oil outlet pipe 230, a lubrication application mechanism 231, and a drive mechanism. The cylinder 210 is mounted on a base 110. One side of the inner cavity of the cylinder 210 is connected to an oil storage tank via the oil suction pipe 220, and the other side of the inner cavity is connected to the lubrication application mechanism 231 via the oil outlet pipe 231. The lubrication application mechanism 231 is fixedly connected to the base 110. A sealing plate is slidably connected to the cylinder 210. A rubber gasket 240 is fixedly connected to the inner cavity of the column cylinder 210, and the rubber gasket 240 is dynamically sealed to the inner cavity of the column cylinder 210. A one-way valve that only allows oil to enter the inner cavity of the column cylinder 210 is installed in the oil sucker pipe 220, and a one-way valve that only allows oil to exit the inner cavity of the column cylinder 210 is installed in the oil outlet pipe 230. A push rod 250 is fixedly connected to the sealing plate, and the push rod 250 passes through the side wall of the column cylinder 210 and is slidably connected to the column cylinder 210. The driving mechanism is used to drive the push rod 250 to reciprocate linearly.

[0028] In this embodiment, after rust removal is completed, lubrication needs to be applied to the parts. The drive mechanism is activated, and the drive mechanism drives the push rod 250 to move, thereby causing the sealing plate to slide back and forth in the inner cavity of the cylinder 210. When the sealing plate is away from the end where the oil extraction pipe 220 and the oil outlet pipe 230 are located, the negative pressure drives the lubricating oil in the oil storage tank to enter the cylinder 210 through the one-way valve in the oil extraction pipe 220. When the sealing plate is close to the end where the oil extraction pipe 220 and the oil outlet pipe 230 are located, it drives the lubricating oil in the cylinder 210 to enter the lubrication application mechanism 231 through the one-way valve in the oil outlet pipe 230 for oil supply. Intermittent oil supply allows for small-volume supply at a time, avoiding the problem of continuous oil supply causing lubricant overflow due to difficulty in quick use, thereby reducing excessive lubricant consumption.

[0029] Optionally, please refer to Figure 1-5 As shown, the driving mechanism includes a motor 290, a turntable 280, a moving column 270, a moving frame 260, and a guide rod 262. The motor 290 is fixedly connected to the base 110 via a mounting bracket 291. The output end of the motor 290 drives the turntable 280. The lower end of the turntable 280 is connected to the moving column 270. The base 110 is fixedly connected to the guide rod 262. The moving frame 260 is slidably connected to the guide rod 262 via a slider 261. The moving column 270 is inserted into the moving frame 260. The moving frame 260 is fixedly connected to the push rod 250, and the axial direction of the guide rod 262 is parallel to the sliding direction of the sealing plate in the inner cavity of the column cylinder 210.

[0030] In this embodiment, during use, the motor 290 drives the turntable 280 to rotate, thereby driving the moving column 270 to rotate. The moving column 270 rotates and slides within the moving frame 260, while the limiting frame moves only in a straight line under the action of the guide rod 262, thereby driving the push rod 250 to move back and forth to achieve intermittent suction action.

[0031] Optionally, please refer to Figure 1-6 As shown, a threaded column is fixed at the upper end of the movable column 270, and a plurality of threaded holes are provided at the lower end of the turntable 280. The movable column 270 is connected to a threaded hole through the threaded column.

[0032] In this embodiment, the reciprocating stroke of the moving frame 260 can be adjusted by screwing the moving column 270 into different threaded holes, thereby further controlling the oil output.

[0033] Optionally, please refer to Figure 1-6 As shown, it also includes an adjustment component 120, the fixed end of which is fixedly connected to the base 110, and the driving end of which is fixedly connected to a connecting column 140. The rust removal and paint removal component 130 is mounted on the connecting column 140.

[0034] In this embodiment, the height of the rust and paint removal component 130 can be adjusted by adjusting component 120, which facilitates rust and paint removal operations on different parts.

[0035] Optionally, please refer to Figure 1-6 As shown, it also includes a cooling assembly, which includes a water tank 310, a filter plate 320, a water pump 340, and a diverter block 360. The filter plate 320 is installed on the upper end of the water tank 310, and the water tank 310 is fixedly connected to the base 110. The diverter block 360 is fixedly connected to the connecting column 140. The output end of the water pump 340 is connected to the inner cavity of the diverter block 360 through a water outlet pipe 350. A nozzle is installed at the output port of the diverter block 360. The input end of the water pump 340 is connected to the water tank 310 through a water pumping pipe 330. In this embodiment, during the rust and paint removal operation, the rust and paint removal component 130 polishes the parts, and the water pump 340 is started. The water pump 340 draws cooling water from the water tank 310 into the diverter block 360, and then sprays it out from the nozzle to cool and cool the polished parts and rinse them to a certain extent. The water tank 310 is used to collect and store the water sprayed from the nozzle. When the water volume is insufficient, it needs to be replenished in time. A filter plate 320 is installed at the upper end of the water tank 310 to filter the collected water and prevent residue and debris from clogging or damaging the water pump 340.

[0036] Optionally, please refer to Figure 1-6As shown, the nozzles on the diversion block 360 are multiple, and all nozzles face the rust and paint removal assembly 130; thereby increasing the cooling range.

[0037] Optionally, please refer to Figure 7-8 As shown, a connecting hole 311 is provided on the side wall of the water tank 310. One end of the connecting hole 311 is connected to the water pumping pipe 330, and the other end is connected to the inner cavity of the water tank 310. There is a height difference between the connecting hole 311 and the bottom of the water tank 310. The height difference between the bottom of the connecting hole 311 and the bottom of the water tank 310 is not less than 100mm.

[0038] In this embodiment, the connecting hole 311 is far from the bottom of the water tank 310 to prevent any debris or residue from being drawn into the water pump 340 after accumulating and potentially damaging the water pump 340.

[0039] Optionally, please refer to Figure 7-8 As shown, the water tank 310 has a placement groove 312 for placing the filter plate 320 at the upper end, and the placement groove 312 has a sealing hole that is connected through to the connecting hole 311. The filter plate 320 is fixedly connected to the sealing hole at the position of the sealing hole. The plug 322 is sealed to the sealing hole, and the filter plate 320 is fixedly connected to both sides of the filter plate 320.

[0040] In this embodiment, when the filter plate 320 is clogged during use, the filter plate 320 is removed by the handle 321. The filter plate 320 causes the plug 322 to leave the sealing hole, and air enters the upper end of the connecting hole 311. This can provide temporary protection if the operator forgets to stop the machine and removes the filter plate 320, preventing the water pump 340 from continuing to draw water from the water tank 310 without the protection of the filter plate 320, which could damage the water pump 340. It should be noted that at this time, the water pump 340 should preferably be a dry-running water pump 340 or a peristaltic pump to avoid damage caused by the dry-running of a regular water pump 340.

[0041] Optionally, please refer to Figure 7-8 As shown, a fine filter plate 313 is detachably connected inside the water tank 310, and a collection tank 314 is detachably connected to the bottom of the water tank 310. The fine filter plate 313 is detachably arranged downward from the connecting hole 311 to the filter tank, and the connecting hole 311 is located below the fine filter plate 313.

[0042] Further filtration is achieved through a fine filter plate 313, whose angled cut facilitates the sweeping of impurities into the collection tank 314 during cleaning.

[0043] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A rust and paint removal machine for bridge and tunnel maintenance, comprising a base (110), characterized in that, The upper end of the base (110) is provided with a rust removal and paint removal component (130) and a lubrication component, wherein: The rust and paint removal assembly (130) is installed on the upper end of the base (110) and is used for rust and paint removal; The lubrication assembly includes a cylinder (210), an oil suction pipe (220), an oil outlet pipe (230), a lubrication application mechanism (231), and a drive mechanism. The cylinder (210) is mounted on a base (110). One side of the inner cavity of the cylinder (210) is connected to an oil storage tank via the oil suction pipe (220), and the other side of the inner cavity is connected to the lubrication application mechanism (231) via the oil outlet pipe (230). The lubrication application mechanism (231) is fixedly connected to the base (110). A sealing plate is slidably connected to the cylinder (210). A rubber pad (240) is fixedly connected to the inner cavity of the column (210) and dynamically sealed. A one-way valve that only allows input into the inner cavity of the column (210) is installed in the oil sucker pipe (220). A one-way valve that only allows output from the inner cavity of the column (210) is installed in the oil outlet pipe (230). A push rod (250) is fixedly connected to the sealing plate. The push rod (250) passes through the side wall of the column (210) and is slidably connected to the column (210). The driving mechanism is used to drive the push rod (250) to reciprocate linearly.

2. A rust and paint removal machine for bridge and tunnel maintenance according to claim 1, characterized in that, The driving mechanism includes a motor (290), a turntable (280), a moving column (270), a moving frame (260), and a guide rod (262). The motor (290) is fixedly connected to the base (110) via a mounting bracket (291). The output end of the motor (290) drives the turntable (280). The lower end of the turntable (280) is connected to the moving column (270). The base (110) is fixedly connected to the guide rod (262). The moving frame (260) is slidably connected to the guide rod (262) via a slider (261). The moving column (270) is inserted into the moving frame (260). The moving frame (260) is fixedly connected to the push rod (250). The axial direction of the guide rod (262) is parallel to the sliding direction of the sealing plate in the inner cavity of the column cylinder (210).

3. A rust and paint removal machine for bridge and tunnel maintenance according to claim 2, characterized in that, The upper end of the movable column (270) is fixed with a threaded column, and the lower end of the turntable (280) is provided with several threaded holes. The movable column (270) is connected to a threaded hole through the threaded column.

4. A rust and paint removal machine for bridge and tunnel maintenance according to claim 1, characterized in that, It also includes an adjustment component (120), the fixed end of which is fixedly connected to the base (110), the driving end of which is fixedly connected to a connecting column (140), and the rust and paint removal component (130) is mounted on the connecting column (140).

5. A rust and paint removal machine for bridge and tunnel maintenance according to claim 4, characterized in that, It also includes a cooling assembly, which includes a water tank (310), a filter plate (320), a water pump (340), and a diverter block (360). The filter plate (320) is installed on the upper end of the water tank (310), the water tank (310) is fixedly connected to the base (110), the diverter block (360) is fixedly connected to the connecting column (140), the output end of the water pump (340) is connected to the inner cavity of the diverter block (360) through the water outlet pipe (350), the output port of the diverter block (360) is equipped with a nozzle, and the input end of the water pump (340) is connected to the water tank (310) through the water pump pipe (330).

6. A rust and paint removal machine for bridge and tunnel maintenance according to claim 5, characterized in that, The nozzles on the diverter block (360) are multiple, and all nozzles face the rust and paint removal assembly (130).

7. A rust and paint removal machine for bridge and tunnel maintenance according to claim 5, characterized in that, The side wall of the water tank (310) is provided with a connecting hole (311). One end of the connecting hole (311) is connected to the water pumping pipe (330), and the other end is connected to the inner cavity of the water tank (310). There is a height difference between the connecting hole (311) and the bottom of the water tank (310).

8. A rust and paint removal machine for bridge and tunnel maintenance according to claim 7, characterized in that, The height difference between the bottom of the connecting hole (311) and the bottom of the water tank (310) is not less than 100mm.

9. A rust and paint removal machine for bridge and tunnel maintenance according to claim 7, characterized in that, The water tank (310) has a placement groove (312) at the upper end for placing the filter plate (320), and the placement groove (312) has a sealing hole that is connected through to the connecting hole (311). The filter plate (320) is fixedly connected to the sealing hole with a plug (322), the plug (322) is sealed to the sealing hole, and the filter plate (320) has handles (321) fixedly connected to both sides.

10. A rust and paint removal machine for bridge and tunnel maintenance according to claim 9, characterized in that, The water tank (310) is also detachably connected to an inclined fine filter plate (313), and the bottom of the water tank (310) is detachably connected to a collection tank (314). The fine filter plate (313) is inclined downward from the direction of the connecting hole (311) to the filter tank, and the connecting hole (311) is located below the fine filter plate (313).

Citation Information

Patent Citations

  • Rust and paint removal machine for bridge and tunnel maintenance

    CN220740642U