A device for cleaning scale inside a heating pipe

Abstract

The utility model relates to the technical field of heating and ventilation pipeline internal cleaning equipment, disclose a kind of scale cleaning equipment in heating and ventilation pipeline inside, including base, it is characterized in that, the upper side of base is fixedly connected with load-bearing support, the upper side of load-bearing support is sequentially head-tail rotationally connected with multiple snake bone joints, each snake bone joint includes thimble and two pull rods, two pull rods are fixedly connected to the lower side of thimble respectively, and two pull rods are symmetrically distributed, two sides outside each thimble are respectively provided with limiting slot, the utility model can make the snake bone structure of multiple thimble groups make various space swing angles by servo motor pulling steel wire rope, turning, obstacle-crossing ability is stronger, so that high-pressure water gun assembly can shuttle in any heating and ventilation pipeline scene containing tee branch, can all be responsible for the work of cleaning pipeline internal scale.

Description

Technical Field

[0001] This utility model relates to the technical field of internal cleaning equipment for HVAC pipes, and in particular to a device for cleaning scale inside HVAC pipes. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) pipes deliver hot water, steam, or other heat transfer media to provide a warm and comfortable environment inside buildings. In practice, we have found that HVAC pipes tend to accumulate scale after prolonged use. If not cleaned for a long time, the scale will continue to build up on the inner wall of the pipes. This not only hinders the flow of the medium inside the HVAC pipes but may also reduce the heat transfer efficiency of the heating system. Therefore, it is necessary to use professional cleaning equipment to enter the pipes and remove the scale using a high-pressure water gun. However, due to the intricate nature of HVAC pipes in large buildings, there are often branching tees. Existing HVAC pipe scale removal equipment often encounters difficulties in turning or getting stuck when passing through these branching tees.

[0003] For example, Chinese utility model patent CN210788463U discloses a scale removal device for HVAC pipes, which relates to the field of pipe maintenance equipment technology. Although this solution uses a self-driving trolley that moves freely inside the pipe wall, and the trolley is equipped with a dust removal mechanism and a descaling mechanism, the scale removal function is achieved through the coaxial bidirectional friction design of the two descaling components. However, when this type of self-driving trolley passes through a branch tee, it often gets stuck or cannot pass through due to the lack of a reversing function or the need for a large radius for large-angle turns. This may result in the limited pipe cleaning scenarios that this solution can clean. Based on this, a scale removal device for the inside of HVAC pipes is proposed to solve the above problems. Utility Model Content

[0004] To address the technical issues of deflection and bends in the equipment for cleaning scale inside HVAC pipes, this utility model provides an equipment for cleaning scale inside HVAC pipes.

[0005] This utility model is achieved by the following technical solution: a scale cleaning device for the inside of HVAC pipes, including a base, a load-bearing support fixedly connected to the upper side of the base, and a plurality of snake-bone joints rotatably connected end to end on the upper side of the load-bearing support.

[0006] Each of the snake-bone joints includes a collar and two tie rods. The two tie rods are fixedly connected to the lower side of the collar and are symmetrically distributed. Limiting grooves are formed on both sides of the outer side of each collar. The tie rod of the next snake-bone joint is rotatably connected to the limiting groove on the collar of the previous snake-bone joint. A mounting platform is fixedly connected to the side of the collar of the last snake-bone joint away from the load-bearing support. A high-pressure water gun assembly is installed on one side of the mounting platform. The interior of the multiple snake-bone joints is provided with a water gun reversing mechanism to adjust the direction of the high-pressure water gun assembly. A high-pressure water pump mechanism is provided between the base and the mounting platform.

[0007] As a further improvement to the above solution, the water gun reversing mechanism includes a limiting ring fixedly connected to the inner side of each of the collars, four steel wire ropes slidably connected to the multiple limiting rings, and a spring sleeved on the outer side of each steel wire rope between two adjacent snake joints. The four steel wire ropes are distributed in a circumferential array, and the upper ends of the four steel wire ropes are simultaneously fixedly connected to the lower side of the mounting platform. The load-bearing support is provided with a steel wire rope drive structure that causes the steel wire ropes to move along the limiting rings.

[0008] As a further improvement to the above solution, the wire rope drive structure includes servo motors respectively installed on the four outer surfaces of the load-bearing support. The output end of each servo motor passes inward through the load-bearing support and is fixedly connected to a roller. Each wire rope passes downward through the load-bearing support, and each roller is connected to the corresponding wire rope on the same side for transmission.

[0009] As a further improvement to the above solution, the high-pressure water pump mechanism includes a high-pressure water pipe that passes through the inside of multiple limiting rings simultaneously. The upper end of the high-pressure water pipe passes through the mounting platform and is connected to the high-pressure water gun assembly. The lower end of the high-pressure water pipe is provided with a water pumping mechanism.

[0010] As a further improvement to the above solution, the water pumping mechanism includes a booster pump installed on the upper side of the base, a water lifting pipe connected to the upper side of the booster pump, the upper end of the water lifting pipe connected to the lower end of the high-pressure water pipe, and a water pipe connector connected to the other side of the booster pump.

[0011] As a further improvement to the above solution, multiple pinhole cameras are installed on the side of the mounting platform near the high-pressure water gun assembly, and the multiple pinhole cameras are distributed in a circular array.

[0012] As a further improvement to the above solution, multiple searchlights are mounted on the mounting platform, and the multiple searchlights are distributed in a circular array.

[0013] As a further improvement to the above solution, a control circuit board is installed on one side of the base, an LED display screen is installed on one side of the control circuit board, a remote control joystick is installed on the other side of the control circuit board, multiple searchlights and pinhole cameras are electrically connected to the control circuit board, and multiple servo motors are electrically connected to the control circuit board.

[0014] As a further improvement to the above solution, a sleeve is fitted around the outer side of each of the plurality of collars, the upper end of the sleeve is fixedly connected to the lower side of the mounting platform, and the lower side of the sleeve is fixedly connected to the upper side of the load-bearing support.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a servo motor to pull a steel wire rope, which enables the snake structure composed of multiple loops to swing at various spatial angles. It has strong turning and obstacle-crossing capabilities, allowing the high-pressure water gun assembly to move through any HVAC duct scenario containing tee branches and to be competent in cleaning the scale inside the pipes.

[0017] 2. This utility model has multiple sleeves located inside the sleeve, while the high-pressure water pipe is located inside the inner limiting ring of the sleeve. This makes the scale removal device, which penetrates deep into the HVAC pipe, have the significant advantage of occupying less space. It does not require disassembling the entire HVAC pipe port. Only a small gap is needed to allow the sleeve to enter. It is simple to operate and convenient to use. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a scale removal device for the interior of HVAC pipes provided by this utility model;

[0019] Figure 2 for Figure 1 Internal structure diagram;

[0020] Figure 3 for Figure 1 Side view;

[0021] Figure 4 for Figure 1 Top view;

[0022] Figure 5 for Figure 1 A schematic diagram of the exploded structure;

[0023] Figure 6 for Figure 1 A partial structural diagram;

[0024] Figure 7 This is a schematic diagram showing the state of two collars assembled together in one embodiment of the present invention;

[0025] Figure 8 This is a top view of the limiting ring in one embodiment of the present invention.

[0026] Explanation of key symbols:

[0027] 1. Base; 2. Remote control joystick; 3. Control circuit board; 4. LED display screen; 5. Sleeve; 6. High-pressure water gun assembly; 7. Servo motor; 8. Ring; 9. High-pressure water pipe; 10. Spring; 11. Steel wire rope; 12. Tie rod; 13. Load-bearing support; 14. Roller; 15. Mounting platform; 16. Pinhole camera; 17. Searchlight; 18. Water pipe connector; 19. Water lifting pipe; 20. Limiting ring; 21. Limiting groove; 22. Booster pump. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0029] Please combine Figures 1-8 This embodiment of a scale removal device for HVAC pipes includes a base 1, with a load-bearing support 13 fixedly connected to the upper side of the base 1. The load-bearing support 13 has an upper side and four sides, and its lower side is connected to the upper side of the base 1. The upper side of the load-bearing support 13 is provided with multiple snake-bone joints that are rotatably connected end to end in sequence. In this embodiment, multiple snake-bone joints of appropriate length can be selected and assembled according to the length of the HVAC pipe to be probed.

[0030] Please combine Figure 7 As shown, each snake-bone joint includes a collar 8 and two tie rods 12. The two tie rods 12 are fixedly connected to the lower side of the collar 8, and the two tie rods 12 are symmetrically distributed. Limiting grooves 21 are opened on both sides of the outer side of each collar 8. The tie rod 12 of the next snake-bone joint is rotatably connected to the limiting groove 21 on the collar 8 of the previous snake-bone joint. The collar 8 of the last snake-bone joint is fixedly connected to the side away from the load-bearing support 13 with a mounting platform 15. A high-pressure water gun assembly 6 is installed on one side of the mounting platform 15. The interior of multiple snake-bone joints is provided with a water gun direction-changing mechanism that adjusts the direction of the high-pressure water gun assembly 6. A high-pressure water pump mechanism is provided between the base 1 and the mounting platform 15.

[0031] Please combine Figure 8As shown, the water gun reversing mechanism includes a limiting ring 20 fixedly connected to the inner side of each collar 8. Four steel wire ropes 11 are slidably connected to the multiple limiting rings 20. Each limiting ring 20 has four holes for the steel wire ropes 11 to pass through. A spring 10 is sleeved on the outer side of each steel wire rope 11 between two adjacent snake bone joints. The spring 10 can improve the buffering and reset performance of the snake bone structure. The four steel wire ropes 11 are distributed in a circumferential array. The upper ends of the four steel wire ropes 11 are simultaneously fixedly connected to the lower side of the mounting platform 15. The load-bearing support 13 is provided with a steel wire rope drive structure that causes the steel wire ropes 11 to move along the limiting rings 20.

[0032] Please combine Figure 6 As shown, the wire rope drive structure includes servo motors 7 installed on the four outer surfaces of the load-bearing support 13. The servo motors 7 can control forward or reverse rotation, as well as the precise number of rotations and speed. The output end of each servo motor 7 passes inward through the load-bearing support 13 and is fixedly connected to a roller 14. Each wire rope 11 passes downward through the load-bearing support 13, and each roller 14 is connected to the corresponding wire rope 11 on the same side.

[0033] Please combine Figure 6 As shown, the high-pressure water pump mechanism includes a high-pressure water pipe 9 that passes through multiple limiting rings 20 simultaneously. The high-pressure water pipe 9 is made of rubber. The upper end of the high-pressure water pipe 9 passes through the mounting platform 15 and is connected to the high-pressure water gun assembly 6. The lower end of the high-pressure water pipe 9 is equipped with a water pumping mechanism.

[0034] Please combine Figure 6 As shown, the water pumping mechanism includes a booster pump 22 installed on the upper side of the base 1. A water lifting pipe 19 is connected to the upper side of the booster pump 22. The water lifting pipe 19 is made of metal to avoid interference with the surrounding rollers 14. The upper end of the water lifting pipe 19 is connected to the lower end of the high-pressure water pipe 9. A water pipe connector 18 is connected to the other side of the booster pump 22, through which an external water source can be connected.

[0035] Please combine Figure 4 As shown, multiple pinhole cameras 16 are installed on the side of the mounting platform 15 near the high-pressure water gun assembly 6. The multiple pinhole cameras 16 are arranged in a circular array. Through the multiple pinhole cameras 16, video images of a large area inside the pipe can be obtained, expanding the observation range of scale and making it easier for staff to use.

[0036] Please combine Figure 4 As shown, multiple searchlights 17 are installed on the mounting platform 15. The searchlights 17 are arranged in a circular array. The searchlights 17 can illuminate the dark environment inside the HVAC ducts, making it easier for staff to observe.

[0037] Please combine Figure 1 and Figure 2As shown, a control circuit board 3 is installed on one side of the base 1, and an LED display screen 4 is installed on one side of the control circuit board 3. The scale image detected by the pinhole camera 16 can be displayed on the LED display screen 4 in real time. A remote control joystick 2 is installed on the other side of the control circuit board 3. Multiple spotlights 17 and pinhole cameras 16 are electrically connected to the control circuit board 3, and multiple servo motors 7 are electrically connected to the control circuit board 3.

[0038] Multiple collars 8 are fitted with sleeves 5 on their outer sides. The sleeves 5 increase the smoothness of the surface of the scale removal equipment, facilitating the free movement of the serpentine structure within the HVAC ductwork. The upper end of the sleeve 5 is fixedly connected to the lower side of the mounting platform 15, and the lower side of the sleeve 5 is fixedly connected to the upper side of the load-bearing support 13.

[0039] The implementation principle of the scale removal device inside HVAC pipes in this application embodiment is as follows: By controlling the forward or reverse rotation of each servo motor 7, the roller 14 is driven to rotate, which tightens or releases each wire rope 11. The wire rope 11 on one side is tightened, which drives multiple loops to bend to that side. The four wire ropes 11 cooperate with each other to complete a range of motion at various angles. At this time, the pinhole camera 16 and the searchlight 17 on the mounting platform 15 bend and swing together. When the pinhole camera 16 sends the captured image to the LED display screen 4, the staff finds the place where scale needs to be cleaned and starts the booster pump 22 to deliver the external water flow to the high-pressure water gun assembly 6 through the high-pressure water pipe 9, thereby realizing the function of cleaning scale.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A device for cleaning scale inside HVAC pipes, comprising a base (1), characterized in that, The upper side of the base (1) is fixedly connected to a load-bearing support (13), and the upper side of the load-bearing support (13) is provided with multiple snake bone joints that are rotatably connected end to end in sequence. Each of the snake-bone joints includes a collar (8) and two pull rods (12). The two pull rods (12) are fixedly connected to the lower side of the collar (8) and are symmetrically distributed. Limiting grooves (21) are opened on both sides of the outer side of each collar (8). The pull rod (12) of the last snake-bone joint is rotatably connected to the limiting groove (21) on the collar (8) of the previous snake-bone joint. The collar (8) of the last snake-bone joint is fixedly connected to a mounting platform (15) on the side away from the load-bearing support (13). A high-pressure water gun assembly (6) is installed on one side of the mounting platform (15). The interior of the multiple snake-bone joints is provided with a water gun direction-changing mechanism that adjusts the direction of the high-pressure water gun assembly (6). A high-pressure water pump mechanism is provided between the base (1) and the mounting platform (15).

2. The scale removal equipment for HVAC pipes as described in claim 1, characterized in that, The water gun reversing mechanism includes a limiting ring (20) fixedly connected to the inner side of each of the collars (8). Four steel wire ropes (11) are slidably connected to the multiple limiting rings (20). A spring (10) is sleeved on the outer side of each steel wire rope (11) between two adjacent snake joints. The four steel wire ropes (11) are arranged in a circumferential array. The upper ends of the four steel wire ropes (11) are simultaneously fixedly connected to the lower side of the mounting platform (15). The load-bearing support (13) is provided with a steel wire rope drive structure that causes the steel wire ropes (11) to move along the limiting rings (20).

3. The scale removal equipment for internal heating and ventilation pipes as described in claim 2, characterized in that, The wire rope drive structure includes servo motors (7) installed on the four outer sides of the load-bearing support (13). The output end of each servo motor (7) passes inward through the load-bearing support (13) and is fixedly connected to a roller (14). Each wire rope (11) passes downward through the load-bearing support (13). Each roller (14) is connected to the corresponding wire rope (11) on the same side.

4. The scale removal equipment for internal heating and ventilation pipes as described in claim 2, characterized in that, The high-pressure water pump mechanism includes a high-pressure water pipe (9) that passes through the interior of multiple limiting rings (20) simultaneously. The upper end of the high-pressure water pipe (9) passes through the mounting platform (15) and is connected to the high-pressure water gun assembly (6). The lower end of the high-pressure water pipe (9) is provided with a water pumping mechanism.

5. The scale removal equipment for HVAC pipes as described in claim 4, characterized in that, The pump water delivery mechanism includes a booster pump (22) installed on the upper side of the base (1). The upper side of the booster pump (22) is connected to a water lifting pipe (19). The upper end of the water lifting pipe (19) is connected to the lower end of the high-pressure water pipe (9). The other side of the booster pump (22) is connected to a water pipe joint (18).

6. The scale removal equipment for internal heating and ventilation pipes as described in claim 3, characterized in that, Multiple pinhole cameras (16) are installed on the side of the mounting platform (15) near the high-pressure water gun assembly (6), and the multiple pinhole cameras (16) are arranged in a circular array.

7. The scale removal equipment for HVAC pipes as described in claim 6, characterized in that, Multiple searchlights (17) are installed on the mounting platform (15), and the multiple searchlights (17) are arranged in a circular array.

8. The scale removal equipment for HVAC pipes as described in claim 7, characterized in that, A control circuit board (3) is installed on one side of the base (1), an LED display screen (4) is installed on one side of the control circuit board (3), a remote control joystick (2) is installed on the other side of the control circuit board (3), multiple searchlights (17) and pinhole cameras (16) are electrically connected to the control circuit board (3), and multiple servo motors (7) are electrically connected to the control circuit board (3).

9. The scale removal equipment for internal heating and ventilation pipes as described in claim 7, characterized in that, A sleeve (5) is fitted on the outer side of the plurality of sleeves (8). The upper end of the sleeve (5) is fixedly connected to the lower side of the mounting platform (15), and the lower side of the sleeve (5) is fixedly connected to the upper side of the load-bearing support (13).

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