An underwater high-pressure automatic concrete surface washing device

By designing an underwater high-pressure automatic flushing device, and utilizing a motor-driven screw and gear rack mechanism to achieve longitudinal and lateral adjustment of the nozzle, the problem of low efficiency in traditional manual cleaning is solved, and efficient and safe underwater concrete surface cleaning is achieved.

CN224423666UActive Publication Date: 2026-06-30SHANGHAI HUNENG ANTI CORROSION & HEAT INSULATION ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HUNENG ANTI CORROSION & HEAT INSULATION ENG
Filing Date
2025-07-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional manual cleaning of underwater concrete structures is inefficient and poses safety hazards, making it difficult to adapt to the complex environment of underwater structures. An automated high-pressure flushing device is needed to improve operational efficiency and safety.

Method used

An underwater high-pressure automatic flushing device was designed. The nozzle can be adjusted longitudinally and laterally by a motor-driven lead screw and gear rack mechanism to adapt to the vertical and horizontal height changes of underwater concrete structures. Combined with a waterproof motor and a stable connection structure, the device can be ensured to operate stably underwater.

Benefits of technology

It enables efficient and large-area underwater concrete surface cleaning, avoids blind spots in rinsing, improves operational efficiency and equipment stability, reduces maintenance costs, and ensures operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to an underwater high-pressure automatic concrete surface washing device, belonging to the technical field of hydraulic high-pressure washing equipment. It includes a first support frame, with a lead screw rotatably connected internally. A threaded tube is threadedly connected to the outer circumference of the lead screw, and a second support frame is fixedly connected to the outer circumference of the threaded tube via a connecting plate. This application uses a first motor to drive the lead screw to rotate, causing the threaded tube to move the second support frame up and down, thereby adjusting the height of the high-pressure washing device and nozzle. This adapts to changes in the vertical height of the underwater concrete structure, avoiding blind spots caused by insufficient fixed height of the equipment. When the second motor drives the gear to rotate, it meshes with a rack, causing the back plate to move the high-pressure washing device laterally. Combined with vertical adjustment, this allows the nozzle to cover a larger area horizontally, completing large-area washing without requiring overall equipment movement, thus improving operational efficiency.
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Description

Technical Field

[0001] This application relates to the field of hydraulic high-pressure flushing equipment technology, and in particular to an underwater high-pressure automatic flushing equipment for concrete surfaces. Background Technology

[0002] Underwater concrete structures are exposed to complex underwater environments for extended periods, making them susceptible to factors such as water erosion, biological adhesion, and chemical corrosion. Therefore, cleaning and maintenance of these structures have become critical issues in fields such as marine engineering and water conservancy engineering, and are of great significance for ensuring structural safety and extending service life.

[0003] With the increasing number of underwater infrastructures, traditional manual cleaning methods are inefficient and pose safety hazards. Therefore, there is a need for an underwater high-pressure automatic concrete surface washing device to replace manual cleaning of underwater concrete surfaces, saving manpower, improving work efficiency, and ensuring work safety. Utility Model Content

[0004] The purpose of this application is to provide an underwater high-pressure automatic concrete surface cleaning device that can replace manual cleaning of underwater concrete surfaces, saving manpower, ensuring operational safety, and enabling longitudinal and lateral adjustment of the high-pressure nozzle to adapt to changes in the vertical height of underwater concrete structures. This allows the nozzle to cover a larger area horizontally, improving the flexibility and practicality of the device, increasing operational efficiency, and solving the problems mentioned in the background art.

[0005] The underwater high-pressure automatic concrete surface washing device provided in this application adopts the following technical solution: an underwater high-pressure automatic concrete surface washing device includes a first support frame, a lead screw is rotatably connected inside the first support frame, a threaded tube is threadedly connected to the outer circumference of the lead screw, a second support frame is fixedly connected to the outer circumference of the threaded tube through a connecting plate, two crossbars are fixedly connected inside the second support frame, a sleeve is slidably sleeved on the outer circumference of each crossbar, a back plate is fixedly connected to the front of the two sleeves through a connecting plate, a high-pressure washing device is installed on the front of the back plate, a nozzle is fixedly connected to the top and bottom of the high-pressure washing device through pipes, a first motor is installed at the top of the first support frame, the output end of the first motor is fixedly connected to the end of the lead screw, a second motor is fixedly connected to the back of the back plate, a gear is fixedly connected to the output end of the second motor, and a rack is fixedly connected inside the second support frame, the gear meshes with the rack;

[0006] The top and bottom of the high-pressure flushing device are fixedly connected to a first cleaning pipe. The output ends of the two first cleaning pipes are respectively aligned with the threaded interfaces at the top and bottom of the threaded pipe. The back of the high-pressure flushing device is fixedly connected to two second cleaning pipes. The second cleaning pipes penetrate the back plate and are symmetrically arranged on both sides of the gear. The output ends of the second cleaning pipes are respectively aligned with the meshing positions of the gear and the rack.

[0007] By adopting the above technical solution, the first motor drives the lead screw to rotate, causing the threaded tube to drive the second support frame to adjust its height. This, in turn, adjusts the height of the high-pressure flushing device and the nozzle to adapt to the vertical height changes of the underwater concrete structure. When the second motor drives the gear to rotate, it meshes with the rack, causing the back plate to drive the high-pressure flushing device to move laterally. Combined with vertical adjustment, this allows the nozzle to cover a larger area in the horizontal direction, improving work efficiency.

[0008] Preferably, the high-pressure flushing device is fixedly connected to a mounting bracket on the front side, and fixed bases are fixedly connected to the top and bottom of the mounting bracket. The outer circumferential surface of the nozzle is slidably inserted into the interior of the fixed base. A first positioning ring is fixedly sleeved on the outer circumferential surface of each nozzle, and a second positioning ring is threadedly connected to the outer circumferential surface of each nozzle. The first positioning ring and the second positioning ring are respectively disposed on the back and front side of the fixed base.

[0009] By adopting the above technical solution, the mounting bracket and the fixed seat provide support and positioning for the nozzle. The first positioning ring and the second positioning ring cooperate with each other to firmly fix the nozzle to the fixed seat from both sides, preventing the nozzle from shaking or shifting during operation, ensuring the stability of the nozzle's spray direction, and also facilitating the installation and disassembly of the nozzle and the fixed seat.

[0010] Preferably, both the first motor and the second motor are waterproof motors, and the entire device is treated with waterproofing and rust prevention.

[0011] By adopting the above technical solution, the first and second motors are made into waterproof motors, which can effectively prevent the motors from being damaged by water when working underwater, extend the service life of the motors, ensure that the equipment can operate continuously and stably in complex underwater environments, and provide waterproof and rust-proof treatment for the entire equipment. This can resist the corrosion of the equipment by the underwater environment and substances such as salt in seawater, avoid the equipment being easily damaged by the underwater environment, reduce the possibility of rust and corrosion, reduce the maintenance cost of the equipment, and improve the reliability and durability of the equipment.

[0012] Preferably, the pipe between the nozzle and the high-pressure flushing device is a flexible pipe, and both the first cleaning pipe and the second cleaning pipe are rigid metal pipes.

[0013] By adopting the above technical solution, a flexible tube is used to connect the nozzle and the high-pressure flushing device, which makes the nozzle flexible during installation and facilitates the installation and disassembly of the nozzle. The first and second cleaning tubes are made of rigid metal tubes, which can ensure that the tube body will not easily deform and improve the stability of the first and second cleaning tubes.

[0014] Preferably, the first support frame has two guide rods fixedly connected inside, and the back of the second support frame has two guide tubes fixedly connected through a connecting plate, with the inner wall of the guide tubes slidingly sleeved with the outer circumferential surface of the guide rods.

[0015] By adopting the above technical solution, during the movement of the threaded tube and the second support frame driven by the screw, the cooperation between the guide rod and the guide tube can prevent the second support frame from shifting or shaking, ensuring that the second support frame moves stably along a straight line. This allows the high-pressure flushing device installed on the second support frame to accurately flush the concrete surface, improving the operational stability and flushing accuracy of the equipment.

[0016] Preferably, the rack is positioned above the gear.

[0017] By adopting the above technical solution, the teeth of the rack face downwards, effectively preventing impurities in the water from falling onto the teeth and affecting the meshing of the gear and rack.

[0018] Preferably, the upper and lower surfaces of the back plate are fixedly connected with reinforcing rings, and the inner walls of the reinforcing rings are fixedly sleeved with the outer circumferential surface of the first cleaning tube.

[0019] By adopting the above technical solution, the reinforcing ring can support and reinforce the first cleaning pipe, improve the stability of the first cleaning pipe, prevent the first cleaning pipe from moving easily, and improve the stability of the first cleaning pipe underwater operation.

[0020] Preferably, two reinforcing tubes are fixedly connected to the back of the back plate, and the inner wall of the reinforcing tube is fixedly sleeved with the outer circumferential surface of the second cleaning tube.

[0021] By adopting the above technical solution, the reinforcement pipe can support and reinforce the second cleaning pipe, improve the stability of the second cleaning pipe, prevent the second cleaning pipe from moving easily, and improve the stability of the second cleaning pipe underwater operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This underwater high-pressure automatic concrete surface washing equipment uses a first motor to drive a lead screw to rotate, causing a threaded tube to move a second support frame for height adjustment. This, in turn, adjusts the height of the high-pressure washing device and nozzles to adapt to changes in the vertical height of the underwater concrete structure, avoiding blind spots caused by insufficient fixed height of the equipment. When the second motor drives the gear to rotate, it meshes with a rack, causing the back plate to move the high-pressure washing device laterally. Combined with vertical adjustment, this allows the nozzles to cover a larger area horizontally, completing large-area washing without moving the entire equipment, thus improving work efficiency. By setting the output ends of the first cleaning pipes, which are respectively aligned with the threaded interfaces at the top and bottom of the threaded tube, the interface between the lead screw and the threaded tube can be cleaned during equipment lifting, preventing debris in the water from clogging the threaded tube. By setting the output ends of the second cleaning pipes, which are respectively aligned with the meshing positions of the gear and rack, the meshing positions of the gear and rack can be cleaned, preventing debris in the water from affecting the meshing of the gear and rack, ensuring continuous and normal lateral or longitudinal movement adjustment of the high-pressure washing device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this application;

[0025] Figure 2 This is a schematic diagram of the overall front structure of this application;

[0026] Figure 3 This is a schematic diagram of the first support frame structure of this application;

[0027] Figure 4 This is a partial cross-sectional side view of the structure of this application;

[0028] Figure 5 This is a schematic diagram of the backplate structure of this application.

[0029] In the picture:

[0030] 1. First support frame; 2. Lead screw; 3. Threaded tube; 4. Second support frame; 5. Crossbar; 6. Sleeve; 7. Back plate; 8. High-pressure flushing device; 9. Mounting bracket; 10. Fixing seat; 11. Nozzle; 12. First positioning ring; 13. Second positioning ring; 14. First motor; 15. Second motor; 16. Gear; 17. Rack; 18. First cleaning tube; 19. Second cleaning tube; 20. Guide rod; 21. Guide tube; 22. Reinforcing ring; 23. Reinforcing tube. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0032] Example 1: An underwater high-pressure automatic concrete surface washing device, referring to... Figure 1 , Figure 4 and Figure 5 The system includes a first support frame 1, with a lead screw 2 rotatably connected inside the first support frame 1. A threaded tube 3 is threadedly connected to the outer circumference of the lead screw 2. A second support frame 4 is fixedly connected to the outer circumference of the threaded tube 3 via a connecting plate. Two crossbars 5 are fixedly connected inside the second support frame 4. A sleeve 6 is slidably fitted onto the outer circumference of each crossbar 5. A back plate 7 is fixedly connected to the front of the two sleeves 6 via a connecting plate. A high-pressure flushing device 8 is installed on the front of the back plate 7. A nozzle 11 is fixedly connected to the top and bottom of the high-pressure flushing device 8 via pipes. A first motor 14 is installed at the top of the first support frame 1. The output end of the first motor 14 is fixedly connected to the end of the lead screw 2. A second motor 15 is fixedly connected to the back of the back plate 7. A gear 16 is fixedly connected to the output end of the second motor 15. A rack 17 is fixedly connected inside the second support frame 4. The gear 16 meshes with the rack 17.

[0033] The high-pressure flushing device 8 is fixedly connected to a mounting bracket 9 on its front side. The top and bottom of the mounting bracket 9 are fixedly connected to a mounting base 10. The outer circumferential surface of the nozzle 11 is slidably inserted into the interior of the mounting base 10. A first positioning ring 12 is fixedly sleeved on the outer circumferential surface of each nozzle 11, and a second positioning ring 13 is threadedly connected to the outer circumferential surface of each nozzle 11. The first positioning ring 12 and the second positioning ring 13 are respectively located on the back and front of the mounting base 10. The mounting bracket 9 and the mounting base 10 provide support and positioning for the nozzle 11. The first positioning ring 12 and the second positioning ring 13 cooperate with each other to firmly fix the nozzle 11 to the mounting base 10 from both sides, preventing the nozzle 11 from shaking or shifting during operation, ensuring the stability of the nozzle 11's spray direction, and also facilitating the installation and disassembly of the nozzle 11 and the mounting base 10.

[0034] Both the first motor 14 and the second motor 15 are waterproof motors. The entire equipment is treated with waterproof and rust prevention. Setting the first motor 14 and the second motor 15 as waterproof motors can effectively prevent the motors from being damaged by water when working underwater, extend the service life of the motors, and ensure that the equipment can operate continuously and stably in complex underwater environments. The overall waterproof and rust prevention treatment of the equipment can resist the corrosion of the underwater environment and substances such as salt in seawater, avoid the equipment being easily damaged by the underwater environment, reduce the possibility of rust and corrosion, reduce the maintenance cost of the equipment, and improve the reliability and durability of the equipment.

[0035] See Figure 1 , Figure 2 and Figure 3The first support frame 1 has two guide rods 20 fixedly connected inside. The back of the second support frame 4 is fixedly connected to two guide tubes 21 through a connecting plate. The inner wall of the guide tube 21 is slidably sleeved with the outer circumferential surface of the guide rod 20. During the movement of the threaded tube 3 and the second support frame 4 driven by the screw 2, the cooperation of the guide rod 20 and the guide tube 21 can prevent the second support frame 4 from deviating or shaking, and ensure that the second support frame 4 moves stably along a straight line. This allows the high-pressure flushing device 8 installed on the second support frame 4 to accurately flush the concrete surface, improving the operational stability and flushing accuracy of the equipment.

[0036] The rack 17 is positioned above the gear 16, causing the teeth of the rack 17 to face downwards, effectively preventing impurities in the water from falling onto the teeth and affecting the meshing of the gear 16 and the rack 17.

[0037] Example 2: An underwater high-pressure automatic concrete surface washing device, see reference. Figure 4 and Figure 5 The top and bottom of the high-pressure flushing device 8 are fixedly connected to the first cleaning pipe 18. The output ends of the two first cleaning pipes 18 are respectively aligned with the threaded interfaces at the top and bottom of the threaded pipe 3. The back of the high-pressure flushing device 8 is fixedly connected to two second cleaning pipes 19. The second cleaning pipes 19 penetrate the back plate 7. The second cleaning pipes 19 are symmetrically arranged on both sides of the gear 16. The output ends of the second cleaning pipes 19 are respectively aligned with the meshing positions of the gear 16 and the rack 17.

[0038] The pipe between the nozzle 11 and the high-pressure flushing device 8 is a flexible pipe, while the first cleaning pipe 18 and the second cleaning pipe 19 are both rigid metal pipes. The flexible pipe connection between the nozzle 11 and the high-pressure flushing device 8 provides flexibility during installation, facilitating the installation and disassembly of the nozzle 11. The rigid metal pipes of the first cleaning pipe 18 and the second cleaning pipe 19 ensure that the pipe body will not easily deform, thus improving the stability of the first cleaning pipe 18 and the second cleaning pipe 19.

[0039] The upper and lower surfaces of the back plate 7 are fixedly connected with reinforcing rings 22. The inner walls of the reinforcing rings 22 are fixedly sleeved with the outer circumferential surface of the first cleaning pipe 18. The reinforcing rings 22 can support and reinforce the first cleaning pipe 18, improve the stability of the first cleaning pipe 18, prevent the first cleaning pipe 18 from moving easily, and improve the stability of the first cleaning pipe 18 in underwater operation.

[0040] Two reinforcing tubes 23 are fixedly connected to the back of the back plate 7. The inner wall of the reinforcing tube 23 is fixedly sleeved with the outer circumferential surface of the second cleaning tube 19. The reinforcing tube 23 can support and reinforce the second cleaning tube 19, improve the stability of the second cleaning tube 19, prevent the second cleaning tube 19 from moving easily, and improve the stability of the second cleaning tube 19 in underwater operation.

[0041] It should be noted that both sides of the first support frame 1 are fixedly connected with mounting plates having through holes. The equipment can be connected and fixed to the external working platform by bolts through the mounting plates. In actual underwater concrete surface washing operations, the external working platform can provide stable support and a mobile foundation for the washing equipment.

[0042] The implementation principle of this embodiment is as follows: A high-pressure flushing device 8 can be activated to spray high-pressure water onto the concrete structure surface through a pipe connected to the nozzle 11. During flushing, a first motor 14 can be activated to drive a lead screw 2 to rotate. The lead screw 2 is threadedly connected to a threaded pipe 3, causing the threaded pipe 3 to drive the second support frame 4 to adjust its height. This allows the high-pressure flushing device 8 and the nozzle 11 to adjust longitudinally. This longitudinal adjustment adapts to changes in the vertical height of the underwater concrete structure, avoiding blind spots caused by insufficient fixed height of the equipment, and ensuring effective flushing of concrete surfaces at different heights. A second motor 15 can be activated to drive a gear 16 to rotate. The gear 16 meshes with a rack 17 fixed inside the second support frame 4, causing the back plate 7 to drive the high-pressure flushing device 8 to... Lateral movement, combined with vertical adjustment, allows the nozzle 11 to cover a larger area horizontally, enabling large-area rinsing without requiring overall equipment movement. This significantly improves work efficiency and reduces the time and effort required for equipment movement. During equipment lifting and lowering, the high-pressure rinsing device 8 sprays high-pressure water through the first cleaning pipe 18 to clean the interface between the lead screw 2 and the threaded pipe 3, preventing debris in the water from clogging the threaded pipe 3 and ensuring smooth thread transmission. During lateral movement, the high-pressure rinsing device 8 sprays high-pressure water through the second cleaning pipe 19, continuously cleaning the meshing position of the gear 16 and rack 17. This prevents debris in the water from affecting the meshing of the gear 16 and rack 17, ensuring the normal operation of the transmission components and ensuring that the movement and adjustment function of the high-pressure rinsing device 8 is not affected.

[0043] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An underwater high pressure automatic washing concrete surface equipment comprising a first support frame (1), characterized in that: The first support frame (1) is rotatably connected to a lead screw (2), and the outer circumferential surface of the lead screw (2) is threadedly connected to a threaded tube (3). The outer circumferential surface of the threaded tube (3) is fixedly connected to a second support frame (4) via a connecting plate. The second support frame (4) is fixedly connected to two crossbars (5), and each crossbar (5) is slidably fitted with a sleeve (6) on its outer circumferential surface. The front of the two sleeves (6) is fixedly connected to a back plate (7) via a connecting plate. A high-pressure flushing device (8) is installed on the front of the back plate (7). The high-pressure flushing device (8) has nozzles (11) fixedly connected to its top and bottom via pipes. The first support frame (1) has a first motor (14) installed at its top. The output end of the first motor (14) is fixedly connected to the end of the lead screw (2). The back of the back plate (7) has a second motor (15) fixedly connected to its back. The output end of the second motor (15) is fixedly connected to a gear (16). The inside of the second support frame (4) has a rack (17) fixedly connected to its back. The gear (16) meshes with the rack (17). The high-pressure flushing device (8) is fixedly connected to the top and bottom of a first cleaning pipe (18). The output ends of the two first cleaning pipes (18) are respectively aligned with the threaded interfaces at the top and bottom of the threaded pipe (3). The back of the high-pressure flushing device (8) is fixedly connected to two second cleaning pipes (19). The second cleaning pipes (19) penetrate the back plate (7). The second cleaning pipes (19) are symmetrically arranged on both sides of the gear (16). The output ends of the second cleaning pipes (19) are respectively aligned with the meshing positions of the gear (16) and the rack (17).

2. An underwater high pressure automatic washout concrete surface equipment as claimed in claim 1, wherein: The high-pressure flushing device (8) is fixedly connected to a mounting bracket (9) on the front side. The mounting bracket (9) is fixedly connected to a base (10) at both the top and bottom. The outer circumferential surface of the nozzle (11) is slidably inserted into the interior of the base (10). A first positioning ring (12) is fixedly sleeved on the outer circumferential surface of each nozzle (11). A second positioning ring (13) is threaded onto the outer circumferential surface of each nozzle (11). The first positioning ring (12) and the second positioning ring (13) are respectively located on the back and front of the base (10).

3. An underwater high pressure self-cleaning concrete surface apparatus as claimed in claim 1, wherein: Both the first motor (14) and the second motor (15) are waterproof motors, and the entire equipment is treated to be waterproof and rustproof.

4. An underwater high pressure self-cleaning concrete surface apparatus as claimed in claim 1, wherein: The pipe between the nozzle (11) and the high-pressure flushing device (8) is a soft pipe, while the first cleaning pipe (18) and the second cleaning pipe (19) are both hard metal pipes.

5. An underwater high pressure self-cleaning concrete surface apparatus as claimed in claim 1, wherein: The first support frame (1) has two guide rods (20) fixedly connected inside, and the back of the second support frame (4) has two guide tubes (21) fixedly connected through a connecting plate. The inner wall of the guide tube (21) is slidably sleeved with the outer circumferential surface of the guide rod (20).

6. An underwater high pressure self-cleaning concrete surface apparatus as claimed in claim 1, wherein: The rack (17) is positioned above the gear (16).

7. An underwater high pressure self-cleaning concrete surface apparatus as claimed in claim 1, wherein: The upper surface and the bottom surface of the back plate (7) are fixedly connected with reinforcing rings (22), and the inner walls of the reinforcing rings (22) are fixedly sleeved with the outer circumferential surfaces of the first cleaning pipes (18) respectively.

8. An underwater high pressure self-cleaning concrete surface apparatus as claimed in claim 1, wherein: The back surface of the back plate (7) is fixedly connected with two reinforcing pipes (23), and the inner walls of the reinforcing pipes (23) are fixedly sleeved with the outer circumferential surfaces of the second cleaning pipes (19).