A device for removing rust from the inner tube of a directly buried heat preservation tube

By designing an automated rust removal device for the inner pipe of buried insulated pipes, the device utilizes a motor-driven lead screw and grinding wheel assembly to achieve automated rust removal, solving the problem of low efficiency in manual rust removal in existing technologies, improving rust removal efficiency and reducing manpower consumption.

CN224445543UActive Publication Date: 2026-07-03SHANDONG JIANMING PIPE IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JIANMING PIPE IND CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-03

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  • Figure CN224445543U_ABST
    Figure CN224445543U_ABST
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Abstract

This utility model belongs to the technical field of rust removal devices, specifically a rust removal device for the inner tube of a directly buried insulated pipe. It includes a support platform, a fixed plate fixedly connected to the upper surface of the support platform, a rust removal component installed inside the fixed plate, and a side plate fixedly connected to the upper surface of the support platform, positioned on the left side of the fixed plate. The rust removal component includes a motor, the main body of which is fixedly connected to the right side of the outer wall of the fixed plate, and a lead screw fixedly connected to the output end of the motor. The lead screw is rotatably connected inside the fixed plate and the side plate. In use, the inner tube of the insulated pipe is placed on the outer wall of the grinding wheel. Starting the motor causes the lead screw to rotate, which in turn moves the sliding plate, causing the grinding wheel to slide inside the insulated pipe. Simultaneously, starting the second motor causes the grinding wheel to rotate and move in coordination, removing rust from the inner wall of the insulated pipe. This achieves automatic rust removal, reduces manpower consumption, and improves work efficiency.
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Description

Technical Field

[0001] This utility model belongs to the technical field of rust removal devices, specifically a rust removal device for the inner tube of a direct-buried insulated pipe. Background Technology

[0002] The inner pipe of a direct-buried insulated pipe is the core component, directly transporting fluid media (such as hot water, steam, and cold water). It features corrosion resistance, high temperature resistance, high strength, and a smooth inner wall. The inner pipe material can be steel, stainless steel, plastic (such as HDPE, PPR), or composite (such as steel-plastic composite pipe). Structurally, it is available in single-layer and multi-layer configurations, suitable for various scenarios including heating, cooling, petrochemical, and municipal engineering.

[0003] In the existing technology, the inner tube of conventional insulation pipe is usually made of steel pipe. After long-term use, the inner wall of the inner tube is prone to rust, and the inside of the inner tube needs to be derusted regularly. Since the inner tube is usually long, the existing rust removal method is generally to manually use a long pole with a rust removal brush to remove rust from the inside of the inner tube, which consumes too much manpower and reduces the efficiency of rust removal. Summary of the Invention

[0004] The purpose of this invention is to provide a rust removal device for the inner wall of a direct-buried insulated pipe, which has the function of automatically removing rust from the inner wall of the pipe.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rust removal device for the inner pipe of a direct-buried insulated pipe is provided, comprising a support platform, a fixed plate fixedly connected to the upper surface of the support platform, a rust removal component installed inside the fixed plate, a side plate fixedly connected to the upper surface of the support platform, the side plate being located on the left side of the fixed plate, the rust removal component comprising a motor, the main body of the motor being fixedly connected to the right side of the outer wall of the fixed plate, a lead screw being fixedly connected to the output end of the motor, the lead screw being rotatably connected inside the fixed plate and the side plate, a sliding plate being threadedly connected to the outer wall of the lead screw, a second motor being fixedly connected to the outer wall of the sliding plate, a connecting rod being fixedly connected to the output end of the second motor, the connecting rod being rotatably connected inside the fixed plate and the sliding plate, and a grinding wheel being installed at the end of the connecting rod away from the second motor.

[0006] Optionally, a limit rod is fixedly connected between the fixed plate and the side plate, the slide plate is slidably connected to the outer wall of the limit rod, and a mounting plate is fixedly connected to the end of the connecting rod away from the second motor. The mounting plate is fixedly connected to the grinding wheel by bolts.

[0007] Optionally, a support frame is fixedly connected to the upper surface of the support platform, a motor three is fixedly connected to the outer wall of the support frame, and a lead screw two is rotatably connected inside the support frame. There are two lead screw twos, and the output end of the motor three is fixedly connected to the left end of one of the lead screw twos.

[0008] Optionally, the right ends of both lead screws are fixedly connected to hubs, the outer walls of the two hubs are rotatably connected to synchronous belts, and the outer walls of both lead screws are threaded with two symmetrically arranged connecting blocks.

[0009] Optionally, the connecting block is slidably connected inside the support frame, a clamping plate is fixedly connected to the outer wall of the connecting block, and an anti-slip pad is fixedly connected to the outer wall of the clamping plate.

[0010] Optionally, a slide rod is slidably connected inside the support platform, a support plate is fixedly connected to the upper end of the slide rod, and a spring is sleeved on the outer wall of the slide rod.

[0011] Optionally, one end of the spring is fixedly connected to the inside of the support plate, and the other end of the spring is fixedly connected to the inside of the support platform.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When using this utility model, the inner tube of the insulation pipe is fitted onto the outer wall of the grinding wheel. The motor is started, which drives the lead screw to rotate, thereby causing the sliding plate to slide horizontally. This, in turn, drives the motor, connecting rod, mounting plate, and grinding wheel to slide horizontally, allowing the grinding wheel to slide inside the insulation pipe. At the same time, the motor is started, which drives the sliding plate, connecting rod, mounting plate, and grinding wheel to rotate. By utilizing the rotation of the grinding wheel and its horizontal movement inside the insulation pipe, rust removal is performed on the inner wall of the insulation pipe, thus achieving automatic rust removal, replacing manual rust removal, reducing labor consumption, and improving rust removal efficiency.

[0014] 2. When using this utility model, the inner tube of the insulation pipe is placed on the upper surface of the support plate. The motor is started, which drives one of the lead screws to rotate, thereby driving the hub to rotate, and then driving the synchronous belt to rotate. The two lead screws are connected by two hubs and a synchronous belt, so that the two lead screws rotate synchronously. This causes the clamping plate and anti-slip pad to slide towards the outer wall of the inner tube of the insulation pipe through the connecting block, clamping the outer wall of the inner tube of the insulation pipe. The support plate provides support and prevents the inner tube of the insulation pipe from shaking during the rust removal process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rust removal component of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the synchronous belt structure of this utility model.

[0021] In the diagram: 1. Support platform; 101. Fixing plate; 102. Side plate; 2. Rust removal assembly; 201. Motor 1; 202. Lead screw 1; 203. Slide plate; 204. Motor 2; 205. Connecting rod; 206. Mounting plate; 207. Grinding wheel; 208. Limiting rod; 3. Support frame; 4. Motor 3; 5. Lead screw 2; 6. Wheel hub; 7. Synchronous belt; 8. Connecting block; 9. Clamping plate; 10. Anti-slip mat; 11. Support plate; 12. Slide rod; 13. Spring. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0025] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The present invention will now be described. A rust removal device for the inner pipe of a direct-buried insulated pipe includes a support platform 1. A fixing plate 101 is fixedly connected to the upper surface of the support platform 1. A rust removal component 2 is installed inside the fixing plate 101. A side plate 102 is fixedly connected to the upper surface of the support platform 1, and the side plate 102 is located on the left side of the fixing plate 101. The rust removal component 2 includes a motor 201. The main body of the motor 201 is fixedly connected to the right side of the outer wall of the fixing plate 101. A lead screw 202 is fixedly connected to the output end of the motor 201. The lead screw 202 is rotatably connected to the inside of the fixing plate 101 and the side plate 102, and the lead screw 202 is limited to rotate within the inside of the fixing plate 101 and the side plate 102. A sliding plate 203 is threadedly connected to the outer wall of the lead screw 202. A second motor 204 is fixedly connected to the outer wall of the sliding plate 203. A connecting rod 205 is fixedly connected to the output end of the second motor 204. The connecting rod 205 is rotatably connected inside the fixed plate 101 and the sliding plate 203. The connecting rod 205 is limited to rotating inside the sliding plate 203. When the connecting rod 205 rotates inside the fixed plate 101, it can also slide horizontally inside the fixed plate 101. A grinding wheel 207 is installed at the end of the connecting rod 205 away from the motor 204. A limiting rod 208 is fixedly connected between the fixed plate 101 and the side plate 102. The sliding plate 203 is slidably connected to the outer wall of the limiting rod 208. The sliding plate 203 is limited to sliding on the outer wall of the limiting rod 208. A mounting plate 206 is fixedly connected at the end of the connecting rod 205 away from the motor 204. The mounting plate 206 and the grinding wheel 207 are fixedly connected by bolts. The bolt connection between the mounting plate 206 and the grinding wheel 207 makes it easy to replace the appropriate grinding wheel 207 according to the inner diameter of the inner tube of the insulation pipe.

[0027] The rust removal device for the inner tube of the direct-buried insulated pipe provided by this utility model, compared with the prior art, uses automatic rust removal to replace manual rust removal, which not only reduces manpower consumption, but also improves rust removal efficiency.

[0028] Please refer to another embodiment of this utility model as well. Figures 1 to 5 A support frame 3 is fixedly connected to the upper surface of the support platform 1. A motor 4 is fixedly connected to the outer wall of the support frame 3. Two lead screws 5 are rotatably connected inside the support frame 3. The two lead screws 5 are limited to rotate inside the support frame 3. The output end of the motor 4 is fixedly connected to the left end of one of the lead screws 5. A hub 6 is fixedly connected to the right end of each of the two lead screws 5. A synchronous belt 7 is rotatably connected to the outer wall of each of the two hubs 6. The outer walls of the two hubs 6 are connected by the same synchronous belt 7 to achieve synchronous rotation of the two lead screws 5. Two symmetrically arranged connecting blocks 8 are threaded to the outer walls of each of the two lead screws 5. The connecting blocks 8 are slidably connected inside the support frame 3. A clamping plate 9 is fixedly connected to the outer wall of the connecting blocks 8. The wall is fixedly connected with an anti-slip pad 10. Two sets of connecting blocks 8, clamping plates 9 and anti-slip pads 10 set on the outer wall of the screw rod 5 are close to each other and clamp the inner wall of the insulation pipe to prevent the inner pipe from shaking during the rust removal process. It can also clamp the inner pipe of insulation pipe with different inner diameters. The support platform 1 is slidably connected to a slide rod 12. The upper end of the slide rod 12 is fixedly connected to a support plate 11. A spring 13 is sleeved on the outer wall of the slide rod 12. One end of the spring 13 is fixedly connected to the inside of the support plate 11, and the other end of the spring 13 is fixedly connected to the inside of the support platform 1. The support plate 11 is used to support the lower end of the inner pipe of insulation pipe. When the size of the inner pipe of insulation pipe is different, the support plate 11 will automatically adjust the height up and down in combination with the slide rod 12 and the spring 13.

[0029] Working principle: In use, the inner tube of the insulation pipe is inserted through the grinding wheel 207, and the bottom of the inner tube is placed on the upper surface of the support plate 11. The support plate 11 is supported by the spring 13. This method can be used to support the bottom of the inner tube of different models of insulation pipes. Then, the motor 4 is started, which drives one of the lead screws 5 to rotate, thereby driving the hub 6 to rotate, which in turn drives the synchronous belt 7 to rotate, causing the other lead screw 5 and the hub 6 to rotate. This ensures that the two lead screws 5 rotate synchronously, thereby moving towards and clamping the inner tube of the insulation pipe through the connecting block 8, clamping plate 9, and anti-slip pad 10, thus clamping and fixing the inner tube of the insulation pipe and preventing it from shaking during the rust removal process. After clamping, the motor 201 is started, which drives the lead screw 5 to rotate. Rotating rod 202 causes slide plate 203 to drive motor 204, connecting rod 205, mounting plate 206, and grinding wheel 207 to slide horizontally. This allows grinding wheel 207 to slide horizontally on the inner wall of the insulation pipe. Simultaneously, starting motor 204 rotates connecting rod 205, mounting plate 206, and grinding wheel 207. The rotation and translation of grinding wheel 207 remove rust from the inner wall of the insulation pipe. By rotating motor 201 in both the forward and reverse directions, slide plate 203 drives connecting rod 205, mounting plate 206, and grinding wheel 207 to slide back and forth on the inner wall of the insulation pipe, thus achieving comprehensive rust removal. This automatic rust removal replaces manual rust removal, reducing labor costs and improving work efficiency.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for removing rust from the inner tube of a directly buried heat preservation tube, comprising a support table (1), characterized in that: A fixing plate (101) is fixedly connected to the upper surface of the support platform (1). A rust removal component (2) is installed inside the fixing plate (101). A side plate (102) is fixedly connected to the upper surface of the support platform (1). The side plate (102) is located on the left side of the fixing plate (101). The rust removal component (2) includes a motor (201). The main body of the motor (201) is fixedly connected to the right side of the outer wall of the fixing plate (101). A lead screw (202) is fixedly connected to the output end of the motor (201). A lead screw (202) is rotatably connected inside the fixed plate (101) and the side plate (102). A slide plate (203) is threadedly connected to the outer wall of the lead screw (202). A motor (204) is fixedly connected to the outer wall of the slide plate (203). A connecting rod (205) is fixedly connected to the output end of the motor (204). The connecting rod (205) is rotatably connected inside the fixed plate (101) and the slide plate (203). A grinding wheel (207) is installed at the end of the connecting rod (205) away from the motor (204).

2. The device for removing rust from the inner tube of a directly buried heat-preservation tube according to claim 1, characterized in that: A limiting rod (208) is fixedly connected between the fixed plate (101) and the side plate (102). The sliding plate (203) is slidably connected to the outer wall of the limiting rod (208). An mounting plate (206) is fixedly connected to one end of the connecting rod (205) away from the motor (204). The mounting plate (206) is fixedly connected to the grinding wheel (207) by bolts.

3. The device for removing rust from the inner tube of a directly buried heat-preservation tube according to claim 1, characterized in that: A support frame (3) is fixedly connected to the upper surface of the support platform (1). A motor (4) is fixedly connected to the outer wall of the support frame (3). A lead screw (5) is rotatably connected inside the support frame (3). There are two lead screws (5). The output end of the motor (4) is fixedly connected to the left end of one of the lead screws (5).

4. The device for removing rust from the inner tube of directly buried heat-preservation pipe according to claim 3, characterized in that: Both of the two lead screws (5) are fixedly connected to a hub (6) on their right ends. The outer walls of the two hubs (6) are rotatably connected to a synchronous belt (7). The outer walls of both lead screws (5) are threaded with two symmetrically arranged connecting blocks (8).

5. The device for removing rust from the inner tube of directly buried heat-preservation pipe according to claim 4, characterized in that: The connecting block (8) is slidably connected inside the support frame (3), and a clamping plate (9) is fixedly connected to the outer wall of the connecting block (8), and an anti-slip pad (10) is fixedly connected to the outer wall of the clamping plate (9).

6. The rust removal device for the inner pipe of a direct-buried insulated pipe as described in claim 1, characterized in that: The support platform (1) is slidably connected to a slide rod (12), and a support plate (11) is fixedly connected to the upper end of the slide rod (12). A spring (13) is sleeved on the outer wall of the slide rod (12).

7. The rust removal device for the inner pipe of a direct-buried insulated pipe as described in claim 6, characterized in that: One end of the spring (13) is fixedly connected to the inside of the support plate (11), and the other end of the spring (13) is fixedly connected to the inside of the support platform (1).