A culvert crawler that can be used both on land and water

By designing floating and protective devices on the culvert crawler, rapid switching between water and land environments is achieved, solving the problem of delays in underwater inspection processes caused by traditional crawlers, and improving the practicality and safety of the inspection.

CN224283969UActive Publication Date: 2026-05-26SHENZHEN GREEN EN ENVIRONMENTAL PROTECTION TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN GREEN EN ENVIRONMENTAL PROTECTION TECH
Filing Date
2025-07-01
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional culvert crawlers lack a rapid switching mechanism when switching between water and land environments, leading to delays in the inspection process and increased safety risks.

Method used

A amphibious culvert crawler was designed, equipped with a floating device and a protective device, enabling it to quickly switch to a floating state on the water surface and sealing the charging port underwater to prevent liquid from entering.

Benefits of technology

It improves the practicality and safety of the detection process, prevents liquid from entering the charging port and causing short circuits, and simplifies the operation of switching between water and land environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of pipeline inspection technology and discloses an amphibious pipe crawler, including a crawler body with two wheels installed on both sides. A charging port is provided on the surface of the crawler body, and floating devices are provided on both sides of the crawler body. Each floating device includes two connecting plates, which are fixedly connected to both sides of the crawler body. A strip plate is slidably inserted into each connecting plate, and a suspension frame is fixedly connected to one side of each strip plate. This amphibious pipe crawler achieves the effect of switching the crawler body to a floating state on water, avoiding the situation where a large amount of residual water in the pipeline makes it difficult for the crawler body to enter the water flow for use, thus improving the practicality of the device.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, and in particular to a culvert crawler that can be used both on land and water. Background Technology

[0002] In the field of municipal engineering and pipeline inspection, culvert crawlers are core equipment for detecting internal defects in underground pipelines, and their working environment is often complex and variable. Traditional crawlers are mostly designed for land use. When faced with scenarios containing liquid media such as rainwater accumulation, pipeline leaks, or sewage pipelines, they are often forced to stop working due to insufficient waterproof performance or inability to move in water, resulting in delays in the inspection process. In some cases, manual entry into the well may be required, increasing safety risks and construction costs.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: When switching between water and land environments, traditional crawlers lack a rapid conversion mechanism and rely on manual disassembly or replacement of parts, which is cumbersome and time-consuming, and difficult to adapt to the needs of emergency detection scenarios. Utility Model Content

[0004] The technical problem to be solved by this utility model is that in the prior art, a large amount of water liquid remains in the pipe, making it difficult for the crawler body to enter the water flow for use, which causes a drawback that affects the detection process. To this end, we propose an amphibious pipe crawler.

[0005] To achieve the above objectives, this application adopts the following technical solution: an amphibious culvert crawler, comprising a crawler body, two driving wheels mounted on each side of the crawler body, a charging hole on the surface of the crawler body, and floating devices on both sides of the crawler body. The floating devices include two connecting plates, which are respectively fixedly connected to the two sides of the crawler body. A strip plate is slidably inserted into the connecting plate, and a suspension frame is fixedly connected to one side of the strip plate. The four driving wheels are arranged in pairs, and the surfaces of the two sets of driving wheels are slidably connected to the two suspension frames. Several paddles are fixedly connected to the arc surface of the driving wheels. A fixing rod is fixedly connected to one side of the connecting plate, and an operating plate is slidably connected to the arc surface of the fixing rod. An insertion rod is fixedly connected to one side of the operating plate, and an insertion hole is opened on the surface of the strip plate.

[0006] Preferably, a limiting plate is fixedly connected to one side of the fixing rod, and the size of the insertion rod is adapted to the size of the insertion hole of the strip plate.

[0007] Preferably, a first spring is fitted onto the arc surface of the fixing rod, and the two ends of the first spring are fixedly connected to the operating plate and the connecting plate, respectively.

[0008] Preferably, an elastic ring is fixedly connected to the surface of the operating panel, and the elastic ring is slidably connected to the arc surface of the fixed rod.

[0009] Preferably, the surface of the crawler body is provided with a protective device, the protective device including a connecting rope, the connecting rope being fixedly connected to the surface of the crawler body, a sealing plate being fixedly connected to one end of the connecting rope away from the crawler body, and a sealing gasket being fixedly connected to one side of the sealing plate.

[0010] Preferably, an L-shaped plate is fixedly connected to one side of the crawler body, a drive rod is threaded into the L-shaped plate, one end of the drive rod is rotatably connected to a snap-fit ​​block, and the snap-fit ​​block is slidably connected to the surface of the crawler body.

[0011] Preferably, a positioning rod is fixedly connected to one side of the snap-fit ​​block, and the arc surface of the positioning rod is slidably connected to the L-shaped plate.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, by setting a floating device, the crawler body is switched to a floating state on the water surface, which avoids the situation where a large amount of water remains in the pipe when the crawler body is used to inspect the pipe, making it difficult for the crawler body to enter the water flow and thus affecting the inspection process, thereby improving the practicality of the device.

[0014] 2. In this utility model, by setting a protective device, the charging port is sealed and waterproofed, which avoids the liquid splashed up when the crawler body is used in a water flow environment from entering the charging port and causing a short circuit in the crawler body, thus improving the protection of the device. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the floating device in this utility model;

[0018] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a schematic diagram of the protective device in this utility model;

[0020] Figure 5 This is a partial structural diagram of the protective device in this utility model.

[0021] Legend: 1. Crawler body; 2. Charging port; 3. Driving wheel; 4. Floating device; 401. Connecting plate; 402. Strip plate; 403. Suspension frame; 404. Paddle plate; 405. Fixing rod; 406. Control panel; 407. Insert rod; 408. Limiting plate; 409. First spring; 410. Elastic ring; 5. Protective device; 51. Connecting rope; 52. Sealing plate; 53. Sealing gasket; 54. L-shaped plate; 55. Drive rod; 56. Snap-fit ​​block; 57. Positioning rod. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Reference Figure 1 As shown, this utility model provides a technical solution: an amphibious pipe crawler, including a crawler body 1, with two driving wheels 3 installed on both sides of the crawler body 1. A charging port 2 is provided on the surface of the crawler body 1, and floating devices 4 are provided on both sides of the crawler body 1. By setting the floating devices 4, the crawler body 1 can be switched to a floating state on the water surface, avoiding the situation where a large amount of residual water liquid in the pipe makes it difficult for the crawler body 1 to enter the water flow when the operator uses it for inspection, thus improving the practicality of the device. A protective device 5 is provided on the surface of the crawler body 1, which achieves a sealing and waterproofing effect on the charging port 2, preventing splashed liquid from entering the charging port 2 when using the crawler body 1 in a water flow environment, thus preventing short circuits within the crawler body 1 and improving the device's protection.

[0024] The specific setup and function of its floating device 4 and protective device 5 will be explained below.

[0025] Reference Figure 2 and Figure 3As shown in this embodiment: the floating device 4 includes two connecting plates 401, which are fixedly connected to both sides of the crawler body 1. A strip plate 402 is slidably inserted into the connecting plate 401. A suspension frame 403 is fixedly connected to one side of the strip plate 402. Four driving wheels 3 are arranged in pairs, and the surfaces of the two sets of driving wheels 3 are slidably connected to the two suspension frames 403 respectively. Several paddles 404 are fixedly connected to the arc surface of the driving wheels 3. A fixing rod 405 is fixedly connected to one side of the connecting plate 401. An operating plate 406 is slidably connected to the arc surface of the fixing rod 405. An insertion rod 407 is fixedly connected to one side of the operating plate 406. An insertion hole is opened on the surface of the strip plate 402. A limit plate 408 is fixedly connected to one side of the fixing rod 405. The size of the insertion rod 407 is adapted to the size of the insertion hole of the strip plate 402, thereby limiting the operating plate 406 within the arc surface of the fixing rod 405. The maximum sliding distance of the arc surface prevents the operating plate 406 from detaching from the arc surface of the fixing rod 405 due to excessive pulling force when the operator pulls it. The arc surface of the fixing rod 405 is fitted with a first spring 409, the two ends of which are fixedly connected to the operating plate 406 and the connecting plate 401, respectively. The first spring 409 improves the stability of the insertion rod 407 when limiting the strip plate 402, thereby improving the stability when limiting the suspension frame 403. An elastic ring 410 is fixedly connected to the surface of the operating plate 406. The elastic ring 410 is slidably connected to the arc surface of the fixing rod 405. The elasticity of the elastic ring 410 wraps around the arc surface of the fixing rod 405, thereby reducing the sliding speed of the operating plate 406 on the arc surface of the fixing rod 405, thus reducing the impact of external shaking on the operating plate 406 and achieving a damping effect.

[0026] Reference Figure 4 and Figure 5 As shown, specifically, the protective device 5 includes a connecting rope 51, which is fixedly connected to the surface of the crawler body 1. A sealing plate 52 is fixedly connected to one end of the connecting rope 51 away from the crawler body 1. A sealing gasket 53 is fixedly connected to one side of the sealing plate 52. An L-shaped plate 54 is fixedly connected to one side of the crawler body 1. A drive rod 55 is threaded into the L-shaped plate 54. A locking block 56 is rotatably connected to one end of the drive rod 55. The locking block 56 is slidably connected to the surface of the crawler body 1, achieving the effect of abutting and limiting the sealing plate 52, so as to increase the stability of the sealing gasket 53 when protecting the charging hole 2. A positioning rod 57 is fixedly connected to one side of the locking block 56. The arc surface of the positioning rod 57 is slidably connected to the L-shaped plate 54. The positioning rod 57 achieves the effect of limiting the locking block 56 to rotate with the drive rod 55, so as to provide stable guidance for the locking block 56.

[0027] Working principle: When the crawler body 1 needs to switch from land to water travel, the operator first pulls the control plate 406. The control plate 406 overcomes the elastic force of the first spring 409 and slides on the fixed rod 405, causing the insertion rod 407 to no longer block the strip plate 402. At this time, the strip plate 402 is inserted into the connecting plate 401, so that the suspension frame 403 wraps around the driving wheel 3. Then, the control plate 406 is released, the first spring 409 releases its rebound force, and the insertion rod 407 is inserted into the corresponding insertion hole of the strip plate 402 to fix the position of the suspension frame 403. When traveling, the paddle plate 404 on the driving wheel 3 contacts the water surface. The rotation of the driving wheel 3 drives the paddle plate 404 to paddle, generating buoyancy and thrust, so that the crawler body 1 floats on the water surface and moves. If it needs to be used on land, the paddle plate 404 directly contacts the ground to generate thrust, and it is not necessary to disassemble the suspension frame 403.

[0028] When protection of the charging port 2 of the crawler body 1 is required, the sealing plate 52 is placed over the outside of the charging port 2, and the sealing gasket 53 is tightly fitted with the periphery of the charging port 2 to form a seal. Then, the drive rod 55 inside the L-shaped plate 54 is rotated. The drive rod 55 moves threadedly within the L-shaped plate 54, causing the locking block 56 to move towards the sealing plate 52. Since the positioning rod 57 on the locking block 56 slides within the L-shaped plate 54, its rotation is restricted. The locking block 56 smoothly presses against the sealing plate 52, fixing the sealing plate 52 to the outside of the charging port 2, preventing water or dust from entering the charging port. When charging is required, the drive rod 55 is rotated in the opposite direction, and the locking block 56 disengages from the sealing plate 52. After the limit is released, the sealing plate 52 is pulled open by the connecting rope 51, exposing the charging hole 2 for charging. After charging is completed, the drive rod 55 is rotated again, and the locking block 56 re-clamps against the sealing plate 52, restoring the sealing protection of the charging hole 2. The entire process achieves convenient fixing and release of the sealing plate 52 through the cooperation of the drive rod 55 and the locking block 56. The positioning rod 57 ensures that the locking block 56 accurately abuts, improving the reliability of the protection of the charging hole 2.

[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An amphibious pipe culvert crawler characterized by, The system includes a crawler body (1), with two driving wheels (3) installed on both sides of the crawler body (1). A charging hole (2) is provided on the surface of the crawler body (1). Floating devices (4) are provided on both sides of the crawler body (1). Each floating device (4) includes two connecting plates (401), which are fixedly connected to both sides of the crawler body (1). A strip plate (402) is slidably inserted into each connecting plate (401), and a suspension device is fixedly connected to one side of each strip plate (402). The floating frame (403) has four driving wheels (3) arranged in pairs. The surfaces of the two sets of driving wheels (3) are slidably connected to the two floating frames (403) respectively. Several paddles (404) are fixedly connected to the arc surface of the driving wheel (3). A fixing rod (405) is fixedly connected to one side of the connecting plate (401). An operating plate (406) is slidably connected to the arc surface of the fixing rod (405). An insertion rod (407) is fixedly connected to one side of the operating plate (406). An insertion hole is opened on the surface of the strip plate (402).

2. The amphibious pipe culvert crawler according to claim 1, characterized in that: A limiting plate (408) is fixedly connected to one side of the fixing rod (405), and the size of the insertion rod (407) is adapted to the size of the insertion hole of the strip plate (402).

3. The amphibious pipe culvert crawler as claimed in claim 1, wherein: The arc surface of the fixing rod (405) is fitted with a first spring (409), and the two ends of the first spring (409) are fixedly connected to the operating plate (406) and the connecting plate (401) respectively.

4. The amphibious culvert crawler according to claim 1, characterized in that: An elastic ring (410) is fixedly connected to the surface of the operating plate (406), and the elastic ring (410) is slidably connected to the arc surface of the fixed rod (405).

5. A descent-compatible culvert crawler according to claim 1, characterized in that: The surface of the crawler body (1) is provided with a protective device (5). The protective device (5) includes a connecting rope (51). The connecting rope (51) is fixedly connected to the surface of the crawler body (1). A sealing plate (52) is fixedly connected to one end of the connecting rope (51) away from the crawler body (1). A sealing gasket (53) is fixedly connected to one side of the sealing plate (52).

6. The amphibious culvert crawler according to claim 5, characterized in that: An L-shaped plate (54) is fixedly connected to one side of the crawler body (1). A drive rod (55) is threaded into the L-shaped plate (54). A snap-fit ​​block (56) is rotatably connected to one end of the drive rod (55). The snap-fit ​​block (56) is slidably connected to the surface of the crawler body (1).

7. A amphibious culvert crawler according to claim 6, characterized in that: A positioning rod (57) is fixedly connected to one side of the snap-fit ​​block (56), and the arc surface of the positioning rod (57) is slidably connected to the L-shaped plate (54).