A municipal underground pipeline detection positioning device
By introducing a self-spraying paint system and a stable spraying structure into the municipal underground pipeline detection device, the problems of complex equipment and spraying blockage in the existing technology have been solved, realizing convenient pipeline marking and low-cost maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXING ZHONGCHAO CONSTR CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, the equipment structure of the spray pump painting method is complex, and the sprayed paint is prone to clogging, resulting in inconvenience in use and maintenance, and affecting the convenience of underground pipeline detection and location.
It adopts a liftable probe and a self-spraying paint system, including a loading box, extrusion column, crossbar, extension rod, guide groove, stop, guide tube and clamp. It achieves stable spraying and convenient replacement of self-spraying paint through manual operation, avoiding nozzle deviation and clogging.
It achieves simplified structure and low cost underground pipeline marking, with precise and convenient spraying, easy replacement of self-spraying paint, and reduced equipment maintenance difficulty and cost.
Smart Images

Figure CN224417054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal engineering technology, and in particular to a municipal underground pipeline detection and positioning device. Background Technology
[0002] Pipeline engineering is part of municipal engineering. The detection and location marking of underground pipelines can improve the convenience of later maintenance. Detecting underground pipelines requires the use of specialized equipment.
[0003] A search revealed a pipeline detector based on underground optical cable positioning (publication number: CN217221998U), which includes a base plate, a paint box, and a booster pump. The upper surface of the base plate has two marking ports, and the upper surface of the base plate is fixedly connected to the bottom surface of the paint box. The upper surface of the paint box is fixedly connected to the input end of the booster pump. A paint inlet pipe is connected to the back of the paint box, and a controller is installed on the upper surface of the paint box.
[0004] Existing technologies mainly use pumps to spray paint onto the ground to create markings. However, this requires the installation of corresponding control structures, making the overall structure complex and hindering later inspection and maintenance. Furthermore, the process of spraying paint into the tank causes it to solidify and clog the spraying pipes, requiring regular cleaning and maintenance. This also limits the ease of use of the spray-painted marking panels.
[0005] Therefore, we propose a municipal underground pipeline detection and positioning device. Utility Model Content
[0006] This utility model mainly solves the technical problems of inconvenience in maintenance and use of the above-mentioned spray pump painting method, and provides a municipal underground pipeline detection and positioning device.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a municipal underground pipeline detection and positioning device, comprising:
[0008] The vehicle body, with a retractable probe mounted on its top;
[0009] A marking structure is installed on the top of the vehicle body for marking the position of the bottom surface. The marking structure includes a loading box, a spray paint, an extrusion column, a crossbar, and an extension rod. The loading box is fixedly installed on the vehicle body, the spray paint is detachably connected to the loading box, the extrusion column is fixedly connected to the crossbar, the crossbar is slidably connected to the loading box, and the extension rod is fixedly connected to the crossbar and extends to one side of the vehicle body. The extrusion column can squeeze the spray paint nozzle to spray paint onto the ground.
[0010] In a preferred embodiment of this utility model, the loading box forms a box body with an open top, and the self-spraying paint is installed inside the cavity of the loading box.
[0011] In a preferred embodiment of this utility model, the marking structure further includes a guide groove and a stop block. The guide groove is formed on the side wall of the loading box, the crossbar is slidably disposed in the guide groove, and two stop blocks are fixedly installed on the crossbar. The two stop blocks are respectively located on both sides of the same side wall of the loading box.
[0012] In a preferred embodiment of this utility model, the guide groove is a rectangular groove, the crossbar is a rectangular rod, the crossbar and the guide groove are fitted with a clearance, the extrusion column is a cylinder, the extrusion column is fixedly installed at one end of the crossbar, and a tension spring is fixedly installed on one side of the crossbar, the tension spring is fixedly connected to the inner wall of the loading box.
[0013] In a preferred embodiment of this utility model, the extension rod is formed into an L-shape and extends upward at an angle toward one side of the vehicle body.
[0014] In a preferred embodiment of this utility model, the marking structure further includes a guide tube that passes through the bottom of the loading box and is fixedly connected to the loading box, with the guide tube facing the spray nozzle of the spray paint head.
[0015] As a preferred embodiment of this utility model, the marking structure further includes clamps, two clamps are fixedly installed on the inner bottom surface of the loading box, the clamps form an open C-shaped ring, and the self-spraying paint is engaged and fixed with the two clamps.
[0016] This utility model provides a municipal underground pipeline detection and positioning device. It has the following beneficial effects:
[0017] 1. This municipal underground pipeline detection and positioning device allows for the synchronous pulling of two extension rods by manually holding a pull rod. The extension rods pull a crossbar to slide within a guide groove and stretch a tension spring. A stop block ensures that the crossbar slides along the side wall of the loading box without falling off. The crossbar drives a squeezing column to press a self-spraying paint nozzle, which sprays paint downwards to form a mark. The probe is positioned between two sets of marking structures. The location of the pipeline detected by the probe can be marked by the paint sprayed from the two self-spraying paints. Marking is simple, and replacement and maintenance can be achieved simply by replacing the self-spraying paint. The overall structure is simple, and the use and maintenance costs are low. There is no need to consider the problem of clogging caused by paint oxidation and solidification.
[0018] 2. This municipal underground pipeline detection and positioning device, by setting a guide tube, uses the arc-shaped groove formed at the upper end of the guide tube to abut against the circumferential surface of the nozzle, and the end of the nozzle usually has an arc-shaped groove for finger pressing. The squeezing column can be inserted into the arc-shaped groove to limit the position of the spray paint nozzle, ensuring that the spray nozzle orifice of the spray paint nozzle can be stably in the downward direction. Even if the spray paint nozzle is repeatedly squeezed, it will not cause the nozzle to deviate or twist. The port of the guide tube can be tilted towards the probe and two guide tubes can be extended to form a paint spray point on each side of the probe to mark it. It can accurately guide the atomized paint sprayed by the spray paint to the ground to form a mark.
[0019] 3. This municipal underground pipeline detection and positioning device uses clamps to lock and limit the spray paint. The bottom of the spray paint bottle abuts against the inner wall of one side of the loading box, and the spray nozzle is placed facing the extrusion column. When the extrusion column extrudes the nozzle, the spray paint will not slip, ensuring that the spray paint can be easily disassembled and replaced after the paint is used up. Attached Figure Description
[0020] Figure 1 This is one of the overall perspective views of this utility model;
[0021] Figure 2 This is the second overall perspective view of the present utility model;
[0022] Figure 3 This is a perspective view of the marking structure of this utility model;
[0023] Figure 4 This is a partial sectional view of the loading box of this utility model;
[0024] Figure 5 This is a schematic diagram of the internal structure of the loading box of this utility model.
[0025] Legend: 10. Vehicle body; 11. Probe; 20. Loading box; 21. Spray paint; 22. Extrusion column; 23. Crossbar; 24. Extension rod; 25. Guide groove; 26. Stop; 27. Guide tube; 28. Clamp. Detailed Implementation
[0026] A municipal underground pipeline detection and positioning device, such as Figure 1 and Figure 2 As shown, it includes:
[0027] The vehicle body 10 has a retractable probe 11 mounted on its top.
[0028] like Figure 2 , Figure 3 and Figure 4As shown, a marking structure is installed on the top of the vehicle body 10 for marking the bottom surface. The marking structure includes a loading box 20, a spray paint 21, an extrusion column 22, a crossbar 23, and an extension rod 24. The loading box 20 is fixedly installed to the vehicle body 10. The spray paint 21 is detachably connected to the loading box 20. The extrusion column 22 is fixedly connected to the crossbar 23, and the crossbar 23 is slidably connected to the loading box 20. The extension rod 24 is fixedly connected to the crossbar 23 and extends to one side of the vehicle body 10. The extrusion column 22 can extrude the nozzle of the spray paint 21 to spray paint onto the ground. The loading box 20 forms a box with an open top. The spray paint 21 is installed inside the cavity of the loading box 20. The extension rod 24... 4. An L-shaped rod is formed, and the extension rod 24 extends upwards and tilts towards one side of the vehicle body 10. The marking structure also includes a guide groove 25 and a stop block 26. The guide groove 25 is opened on the side wall of the loading box 20. The crossbar 23 is slidably disposed in the guide groove 25. Two stops block 26 are fixedly installed on the crossbar 23. The two stops block 26 are located on both sides of the same side wall of the loading box 20. The guide groove 25 is a rectangular groove, and the crossbar 23 is a rectangular rod. The crossbar 23 and the guide groove 25 are clearance-fitted. The extrusion column 22 is a cylinder. The extrusion column 22 is fixedly installed at one end of the crossbar 23. A tension spring is fixedly installed on one side of the crossbar 23. The tension spring is fixedly connected to the inner wall of the loading box 20.
[0029] In this design, the marking structure consists of two sets. Two extension rods 24 extend to the vicinity of the handle on the vehicle body 10. A pull rod is fixedly connected between the two extension rods 24. The two extension rods 24 can be pulled synchronously by holding the pull rod. The extension rods 24 pull the crossbar 23 to slide in the guide groove 25 and stretch the tension spring. The stop block 26 ensures that the crossbar 23 slides along the side wall of the loading box 20 without falling off. The crossbar 23 drives the extrusion column 22 to extrude the nozzle of the self-spraying paint 21. The self-spraying paint 21 nozzle sprays paint downward to form a mark. The probe 11 is located between the two sets of marking structures. The position of the pipeline detected by the probe 11 can be marked by the paint sprayed by the two self-spraying paint 21. The marking is simple, and replacement and maintenance can be achieved by simply replacing the self-spraying paint 21.
[0030] like Figure 4 and Figure 5As shown, the marking structure also includes a guide tube 27, which passes through the bottom of the loading box 20 and is fixedly connected to the loading box 20. The guide tube 27 is directly opposite the spray nozzle of the spray paint 21. By setting the guide tube 27, the arc groove formed at the upper end of the guide tube 27 abuts against the circumferential surface of the nozzle. The end of the nozzle is usually provided with an arc groove for finger pressing. The squeezing post 22 can be inserted into the arc groove to limit the spray paint 21 nozzle, ensuring that the spray nozzle of the spray paint 21 nozzle can be stably facing downward. Repeated squeezing of the spray paint 21 nozzle will not cause the nozzle to deviate or twist. The port of the guide tube 27 can be tilted towards the probe 11. The two guide tubes 27 form a paint spray point on each side of the probe 11 to mark the nozzle. The atomized paint sprayed by the spray paint 21 can be accurately guided to the ground to form a mark.
[0031] like Figure 4 and Figure 5 As shown, the marking structure also includes clamps 28. Two clamps 28 are fixedly installed on the inner bottom surface of the loading box 20. The clamps 28 form an open C-shaped ring. The spray paint 21 is clamped and fixed to the two clamps 28. By setting the clamps 28, the spray paint 21 is clamped and limited. The bottom of the spray paint 21 abuts against one side of the inner wall of the loading box 20. The nozzle of the spray paint 21 is placed facing the extrusion column 22. When the extrusion column 22 extrudes the nozzle, the spray paint 21 will not slip, ensuring that the spray paint 21 can be easily disassembled and replaced after the paint is used up.
[0032] The working principle of this utility model is as follows: A lifting column is fixedly installed on the top of the vehicle body 10. The lifting column is equipped with a screw and nut mechanism or a hydraulic cylinder. The probe 11 is fixedly installed on the lifting platform of the lifting column. The screw is driven by a hand crank 43, or the cylinder is driven by a hydraulic station / electric push rod, so that the lifting platform (together with the probe 11) can be raised and lowered within a height range of H (e.g., 0.5-1.5 meters). The side of the lifting column is equipped with a scale and a locking handle for indicating the height and locking position. The probe 11 integrates a positioning module (such as a GNSS receiver) and a data recorder (or connected to a tablet computer). When the operator triggers the marker, the signal strength (e.g., signal strength) and the geographical coordinates of the marker point obtained by the positioning module can be sent to the data recorder simultaneously through a button or pressure sensor (sensing the squeezing action). Multiple marker points can form the trajectory of the pipeline. Simple numbers or symbols can be sprayed near the marker points and associated with the recorded data to realize the detection and positioning of underground pipelines. The above is the known prior art.
[0033] The spray paint 21 is secured and limited using clamp 28, with the bottom of the spray paint 21 abutting against the inner wall of the loading box 20. The nozzle of the spray paint 21 is positioned facing the extrusion column 22. By holding the pull rod, the two extension rods 24 are pulled synchronously. The extension rods 24 pull the crossbar 23 to slide within the guide groove 25 and stretch the tension spring. The stop block 26 ensures that the crossbar 23 slides along the side wall of the loading box 20 without falling off. The crossbar 23 drives the extrusion column 22 to extrude the nozzle of the spray paint 21, thus spraying the paint. The nozzle is sprayed downwards to form a mark. By setting a guide tube 27, the arc-shaped groove formed at the upper end of the guide tube 27 abuts against the circumferential surface of the nozzle. The end of the nozzle usually has an arc-shaped groove for finger pressing. The squeezing column 22 can be inserted into the arc-shaped groove to limit the position of the spray paint 21 nozzle, ensuring that the spray nozzle of the spray paint 21 nozzle can be stably in the downward direction. Repeated squeezing of the spray paint 21 nozzle will not cause the nozzle to deviate or twist. The guide tube 27 forms a colored circular spot on the ground to achieve the marking.
[0034] The detection center point of the probe 11 is located on the longitudinal center line of the vehicle body 10. The outlet centers of the two guide tubes 27 are symmetrically distributed on both sides of the longitudinal center line of the vehicle body 10, and the line connecting them is perpendicular to the center line. The detection center point of the probe 11 is very close to the outlet center of the guide tube 27, about ten centimeters, and is guaranteed by the rigidity of the vehicle body structure. The outlet end of the guide tube 27 is processed into a thin and flat nozzle to reduce the diffusion of paint mist.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A municipal underground pipeline detection and positioning device, characterized in that, include: Vehicle body (10), the top of which is equipped with a liftable probe (11). A marking structure is set on the top of the vehicle body (10) for marking the position of the bottom surface. The marking structure includes a loading box (20), a spray paint (21), an extrusion column (22), a crossbar (23), and an extension rod (24). The loading box (20) is fixedly installed on the vehicle body (10). The spray paint (21) is detachably connected to the loading box (20). The extrusion column (22) is fixedly connected to the crossbar (23). The crossbar (23) is slidably connected to the loading box (20). The extension rod (24) is fixedly connected to the crossbar (23) and extends to one side of the vehicle body (10). The extrusion column (22) can squeeze the nozzle of the spray paint (21) to spray paint on the ground.
2. The municipal underground pipeline detection and positioning device according to claim 1, characterized in that: The loading box (20) forms a box with an open top, and the self-spraying paint (21) is installed inside the cavity of the loading box (20).
3. The municipal underground pipeline detection and positioning device according to claim 1, characterized in that: The marking structure also includes a guide groove (25) and a stop block (26). The guide groove (25) is opened on the side wall of the loading box (20). The crossbar (23) is slidably disposed in the guide groove (25). The crossbar (23) is fixedly installed with two stops block (26). The two stops block (26) are located on both sides of the same side wall of the loading box (20).
4. The municipal underground pipeline detection and positioning device according to claim 3, characterized in that: The guide groove (25) is a rectangular groove, the crossbar (23) is a rectangular bar, the crossbar (23) and the guide groove (25) are in clearance fit, the extrusion column (22) is a cylinder, the extrusion column (22) is fixedly installed at one end of the crossbar (23), and a tension spring is fixedly installed on one side of the crossbar (23), and the tension spring is fixedly connected to the inner wall of the loading box (20).
5. The municipal underground pipeline detection and positioning device according to claim 1, characterized in that: The extension rod (24) forms an L-shaped rod and extends upward at an angle toward one side of the vehicle body (10).
6. The municipal underground pipeline detection and positioning device according to claim 1, characterized in that: The marking structure also includes a guide tube (27), which passes through the bottom of the loading box (20) and is fixedly connected to the loading box (20). The guide tube (27) is directly opposite the spray hole of the spray paint (21) nozzle.
7. The municipal underground pipeline detection and positioning device according to claim 1, characterized in that: The marking structure also includes clamps (28), two clamps (28) are fixedly installed on the inner bottom surface of the loading box (20), the clamps (28) form an open C-shaped ring, and the self-spraying paint (21) is snapped and fixed with the two clamps (28).