A municipal engineering underground pipeline detection auxiliary device
By designing auxiliary equipment for underground pipeline inspection in municipal engineering projects, and utilizing the combination of adjustment and reinforcement components, the problem of foundation pit collapse was solved, achieving a safe and stable support effect and ensuring the safety of the inspection process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-17
- Publication Date
- 2026-07-14
AI Technical Summary
During the inspection of municipal underground pipelines, traditional excavation of foundation pits is prone to collapse due to soft soil, groundwater seepage, or vibration, which seriously threatens the safety of workers.
An auxiliary device for underground pipeline inspection in municipal engineering was designed, including a mounting box and a support plate. By using adjustment components and reinforcing components, and through the cooperation of gears, racks and pinions, the support plate can be deployed and fixed to form a stable triangular support structure to prevent collapse.
It effectively prevents the foundation pit from collapsing, ensures the safety and stability of the testing process, and improves the reliability of the support and its compressive and shear resistance.
Smart Images

Figure CN224497729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal engineering technology, specifically to an auxiliary device for detecting underground pipelines in municipal engineering. Background Technology
[0002] Municipal engineering refers to a series of engineering activities undertaken by the government to construct, expand, renovate, and maintain urban public infrastructure in order to meet the basic needs of urban residents' production and life, ensure the normal operation and sustainable development of the city. It covers many fields closely related to improving urban functions and enhancing the quality of life of residents, such as roads and bridges, water supply and drainage, gas and heating, environmental sanitation, landscaping, sewage treatment, and garbage disposal.
[0003] When inspecting underground pipelines in municipal engineering projects, it is often necessary to excavate the land. Traditional excavation methods frequently lead to pit wall instability and collapse due to factors such as soft soil, groundwater seepage, or surrounding vibrations, seriously threatening the lives of workers. Therefore, this paper proposes an auxiliary device for inspecting underground pipelines in municipal engineering projects to address these problems. Utility Model Content
[0004] The purpose of this utility model is to provide an auxiliary device for the inspection of underground pipelines in municipal engineering, so as to solve the problem that the inspection of underground pipelines in municipal engineering requires the excavation of foundation pits, and traditional foundation pits often collapse due to soil quality, water seepage or vibration, which seriously threatens the safety of personnel.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an auxiliary device for underground pipeline inspection in municipal engineering, including a mounting box and a support plate, wherein the mounting box is provided with an adjustment component and the support plate is provided with a reinforcing component;
[0006] The adjustment assembly includes a handle, a gear is fixedly connected to the outside of the handle, a positioning rod is inserted inside the handle, a slider is slidably connected inside the mounting box, an adjustment rod is fixedly connected to the side of the slider away from the inner wall of the mounting box, and a rack plate is fixedly connected to the outside of the adjustment rod.
[0007] Preferably, the bottom of the handle is rotatably connected to the inner bottom wall of the mounting box, and the top of the handle extends to the top of the mounting box.
[0008] Preferably, the inner bottom wall of the mounting box has at least five slots that are evenly spaced in a ring, and the positioning rod passes through the gear and is inserted into the slot.
[0009] Preferably, the slider is slidably connected to the upper and lower sides of the inner wall of the mounting box, and the upper and lower sides of the inner wall of the mounting box are provided with sliding grooves that are adapted to the movement trajectory of the slider. There are two adjusting rods, which are fixedly connected to the upper and lower sliders respectively, and there are two support plates, which are fixedly connected to the opposite sides of the two adjusting rods respectively.
[0010] Preferably, there are two rack plates, which are fixedly connected to the opposite sides of the two adjusting rods respectively. The two rack plates mesh with the front and rear sides of the gear respectively. The adjusting rods are provided with clearance grooves that are adapted to the movement trajectory of the rack plates.
[0011] Preferably, the reinforcing component includes a card holder, a card block is inserted inside the card holder, and a reinforcing plate is fixedly connected to the top of the card block.
[0012] Preferably, the card holder is fixedly connected to the support plate, and the reinforcing plate is installed at an acute angle to the support plate.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0014] First, the positioning rod is pulled out to release the gear's fixing effect. Then, the handle is turned clockwise to drive the gear to rotate in the same direction, causing the two rack plates meshing with the gear to retract the adjusting rod into the mounting box, adjusting the distance between the two support plates to the minimum. Then, the entire device is placed on the underground pipeline. The handle is reversed to increase the distance between the two support plates until the support plates are tightly against both sides of the pit. Then, the positioning rod is inserted into the slot in the mounting box to fix the position of the two support plates. The support plates can support the pit and prevent the foundation block from accidentally collapsing during the inspection of underground pipelines in municipal engineering projects.
[0015] Secondly, this utility model inserts the card block into the card seat, and forms a triangular stable support through the inclined reinforcing plate, the vertical support plate and the pit ground, which further plays a role in stabilizing the pit. Attached Figure Description
[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 internal structure of the mounting box of this utility model;
[0018] Figure 3 This is a partial structural diagram of the connection between the positioning rod and the mounting box of this utility model;
[0019] Figure 4 This is a partial structural diagram of the connection between the card block and the card seat of this utility model.
[0020] The components are: 1. Mounting box; 2. Support plate; 3. Adjustment assembly; 31. Handle; 32. Gear; 33. Positioning rod; 34. Slider; 35. Adjustment rod; 36. Rack plate; 4. Reinforcing assembly; 41. Card seat; 42. Card block; 43. Reinforcing plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model provides the following technical solution:
[0023] Example 1
[0024] Please see Figure 1 , Figure 2 and Figure 3 An auxiliary device for detecting underground pipelines in municipal engineering includes a mounting box 1 and a support plate 2. The mounting box 1 is equipped with an adjustment component 3.
[0025] The adjustment assembly 3 includes a handle 31, a gear 32 fixedly connected to the outside of the handle 31, a positioning rod 33 inserted inside the handle 31, a slider 34 slidably connected inside the mounting box 1, an adjustment rod 35 fixedly connected to the side of the slider 34 away from the inner wall of the mounting box 1, and a rack plate 36 fixedly connected to the outside of the adjustment rod 35.
[0026] The bottom of the handle 31 is rotatably connected to the inner bottom wall of the mounting box 1, and the top of the handle 31 extends to the top of the mounting box 1.
[0027] This structure ensures stability and reliability during rotation by rotatably connecting the bottom of the handle 31 to the bottom wall of the mounting box 1; at the same time, it extends the top of the handle 31 to the top of the mounting box 1, which greatly facilitates the operator to perform rotation operation on the ground.
[0028] The inner bottom wall of the mounting box 1 has no fewer than five slots that are evenly spaced in a ring. The positioning rod 33 passes through the gear 32 and is inserted into the slot.
[0029] By opening multiple annular slots evenly spaced on the bottom wall of the mounting box 1, and inserting the positioning rod 33 through the gear 32 into different slots, a simple and reliable locking mechanism is formed. This structure can effectively prevent the gear 32 from accidentally reversing after being subjected to force, thereby ensuring that the distance between the two support plates 2 remains stable after adjustment and improving the reliability of the support.
[0030] The slider 34 is slidably connected to the upper and lower sides of the inner wall of the mounting box 1. The upper and lower sides of the inner wall of the mounting box 1 are provided with sliding grooves that are adapted to the moving trajectory of the slider 34. There are two adjusting rods 35, which are fixedly connected to the upper and lower sliders 34 respectively. There are two support plates 2, which are fixedly connected to the opposite sides of the two adjusting rods 35 respectively.
[0031] By sliding the connecting slider 34 in the upper and lower grooves, and fixing the two adjusting rods 35 and the support plate 2 to the upper and lower sliders 34 respectively, a symmetrical and stable rigid motion frame is formed. This design ensures that the two support plates 2 remain parallel and are subjected to uniform force when moving synchronously towards or away from each other, thus providing stable support on the side walls of the foundation pit with different widths.
[0032] There are two rack plates 36, which are fixedly connected to the opposite sides of the two adjusting rods 35 respectively. The two rack plates 36 mesh with the front and rear sides of the gear 32 respectively. The adjusting rods 35 are provided with clearance grooves that are adapted to the moving trajectory of the rack plates 36.
[0033] By setting two rack plates 36 respectively fixed on the adjusting rod 35 and making them mesh simultaneously with the front and rear sides of the same gear 32, a symmetrical drive mechanism is created, which ensures that the two support plates 2 can be driven to open or close synchronously and at equal distances when the handle 31 is turned, thereby improving the efficiency and accuracy of adjustment and ensuring the centering of the equipment.
[0034] Using the above technical solution, firstly, the positioning rod 33 is pulled out to release the fixing effect on the gear 32. Then, the handle 31 is turned forward to drive the gear 32 to rotate in the same direction, so that the two rack plates 36 meshing with the gear 32 drive the adjusting rod 35 to retract into the mounting box 1, adjusting the distance between the two support plates 2 to the minimum. Then, the entire equipment is placed on the underground pipeline, and the handle 33 is reversed to increase the distance between the two support plates 2 until the support plates 2 are in close contact with both sides of the pit. Then, the positioning rod 33 is inserted into the slot in the mounting box 1 to fix the position of the two support plates 2. The support plates 2 can support the pit and prevent the foundation block from collapsing accidentally during the inspection of underground pipelines in municipal engineering.
[0035] Example 2
[0036] Please see Figure 1 and Figure 4 Furthermore, based on Embodiment 1, the following is obtained: a reinforcing component 4 is provided on the support plate 2;
[0037] The reinforcing component 4 includes a card holder 41, a card block 42 is inserted inside the card holder 41, and a reinforcing plate 43 is fixedly connected to the top of the card block 42.
[0038] The bracket 41 is fixedly connected to the support plate 2, and the reinforcing plate 43 is installed at an acute angle to the support plate 2.
[0039] By setting the reinforcing plate 43 and the support plate 2 at an acute angle, the beneficial effect is that the reinforcing plate 43 can be obliquely supported on the side wall of the pit, thereby effectively decomposing the soil pressure into components perpendicular to and parallel to the support plate 2, improving the stress structure, and enhancing the compressive and shear resistance of the entire auxiliary equipment.
[0040] Through the above technical solution, the card block 43 is inserted into the card seat 41, and a triangular stable support is formed by the inclined reinforcing plate 43, the vertical support plate 2 and the pit ground, which further plays a role in stabilizing the pit.
[0041] In actual operation, when this device is in use, firstly, the operator pulls out the positioning rod 33 to release the fixation of the gear 32, and then rotates the handle 31 extending to the top of the mounting box 1 to drive the gear 32 to rotate. Through the meshing action of the gear 32 and the two rack plates 36, the two adjusting rods 35 are driven to move the support plate 2 back to the inside of the mounting box 1. After the equipment is placed in the pit, the handle 31 is reversed to make the two support plates 2 expand outwards synchronously until they are tightly attached to the side wall of the pit. Then, the positioning rod 33 is inserted into the corresponding slot at the bottom of the mounting box 1 to lock the gear 32. Finally, according to the support strength requirements, the locking block 42 of the reinforcing component 4 can be inserted into the locking seat 41 on the support plate 2, so that the acute angle inclined reinforcing plate 43 forms a triangular support with the support plate 2 and the bottom of the pit, thereby completing the safe support of the entire pit.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An auxiliary device for underground pipeline inspection in municipal engineering, comprising a mounting box (1) and a support plate (2), characterized in that: The installation box (1) is equipped with an adjustment component (3), and the support plate (2) is equipped with a reinforcing component (4). The adjustment assembly (3) includes a handle (31), a gear (32) is fixedly connected to the outside of the handle (31), a positioning rod (33) is inserted inside the handle (31), a slider (34) is slidably connected inside the mounting box (1), an adjustment rod (35) is fixedly connected to the side of the slider (34) away from the inner wall of the mounting box (1), and a rack plate (36) is fixedly connected to the outside of the adjustment rod (35).
2. The auxiliary equipment for detecting underground pipelines in municipal engineering according to claim 1, characterized in that: The bottom of the handle (31) is rotatably connected to the inner bottom wall of the mounting box (1), and the top of the handle (31) extends to the top of the mounting box (1).
3. The auxiliary equipment for underground pipeline inspection in municipal engineering according to claim 1, characterized in that: The inner bottom wall of the mounting box (1) has no fewer than five slots that are evenly spaced in a ring. The positioning rod (33) passes through the gear (32) and is inserted into the slot.
4. The auxiliary equipment for underground pipeline inspection in municipal engineering according to claim 1, characterized in that: The slider (34) is slidably connected to the upper and lower sides of the inner wall of the mounting box (1). The upper and lower sides of the inner wall of the mounting box (1) are provided with sliding grooves that are adapted to the movement trajectory of the slider (34). There are two adjusting rods (35) and they are fixedly connected to the upper and lower sliders (34) respectively. There are two support plates (2) and they are fixedly connected to the opposite sides of the two adjusting rods (35) respectively.
5. The auxiliary equipment for underground pipeline inspection in municipal engineering according to claim 1, characterized in that: The number of rack plates (36) is two and they are fixedly connected to the opposite sides of the two adjusting rods (35). The two rack plates (36) mesh with the front and rear sides of the gear (32) respectively. The adjusting rods (35) are provided with clearance grooves that are adapted to the movement trajectory of the rack plates (36).
6. The auxiliary equipment for underground pipeline inspection in municipal engineering according to claim 1, characterized in that: The reinforcing component (4) includes a card holder (41), a card block (42) is inserted inside the card holder (41), and a reinforcing plate (43) is fixedly connected to the top of the card block (42).
7. The auxiliary equipment for underground pipeline inspection in municipal engineering according to claim 6, characterized in that: The card holder (41) is fixedly connected to the support plate (2), and the reinforcing plate (43) is installed at an acute angle to the support plate (2).