Electric dragging equipment for pipeline surveying and mapping
By using a servo motor drive and limit buffer components for the electric towing equipment, combined with detection and protection components, the problem of controlling traction force in existing equipment has been solved, thus protecting the surveying instrument and improving the reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-31
AI Technical Summary
Existing towing equipment has difficulty effectively controlling the traction force of the surveying instrument, which can easily cause tension and damage to the surveying instrument at pipe bends.
The electric towing equipment includes a servo motor driven traction system, a limit buffer assembly, and a detection and protection assembly. The traction force is controlled by using limit grooves and springs to buffer the traction force, combined with contact sensors to clamp the steel cable.
It effectively buffers and protects the traction force of the surveying instrument, preventing damage to the instrument due to excessive traction force and improving the service life of the equipment in complex pipeline environments.
Smart Images

Figure CN224062344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline surveying technology, and in particular to an electric towing device for pipeline surveying. Background Technology
[0002] Pipeline mapping is a systematic measurement and data management technology for underground pipelines (such as water supply, drainage, gas, electricity, and communications). Its core objective is to accurately obtain the spatial location (plane coordinates, burial depth), direction, specifications, and attributes (material, pipe diameter, ownership, etc.) of pipelines through on-site exploration, instrument detection, and data integration, providing basic support for urban planning, construction safety, and operation and maintenance management.
[0003] During the surveying process, towing equipment is usually needed to move the pipeline surveying instrument from one end of the pipeline to the other to facilitate the line surveying work. However, the internal environment of the pipeline is usually quite complex and there are bends. Currently available towing equipment is difficult to effectively buffer and control the traction force of the surveying instrument. When the traction force is too large, the traction cable is easily taut at the bends of the pipeline, which increases the traction force on the surveying instrument and makes it prone to damage due to excessive stress. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an electric towing device for pipeline mapping, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electric towing device for pipeline mapping includes a fixed frame, a support column fixedly connected to the bottom surface of the fixed frame, an anti-slip pad fixedly connected to the bottom surface of the support column, a limit slide rail fixedly connected to the top surface of the fixed frame, a limit sleeve sleeved to the surface of the limit slide rail, a fixed frame fixedly connected to the top surface of the limit sleeve, a fixed shaft rotatably connected to the inner wall of the fixed frame, a traction wheel fixedly connected to the surface of the fixed shaft and rotatably connected to the inner wall of the fixed frame, a drive mechanism provided on the front of the fixed frame, a limit buffer assembly provided inside the fixed frame, a wire guide mechanism provided on the left side of the fixed frame, and a detection and protection assembly provided on the left side of the fixed frame.
[0007] Preferably, the drive mechanism consists of a servo motor, a drive wheel, a transmission belt, and a driven wheel. The servo motor is fixedly connected to the front of the fixed frame, the inner wall of the drive wheel is fixedly connected to the output end of the servo motor, the transmission belt meshes with the inner wall of the drive wheel, and the inner wall of the driven wheel is fixedly connected to the surface of the fixed shaft, and the inner wall of the driven wheel meshes with the transmission belt.
[0008] Preferably, the limiting buffer assembly consists of a limiting slide groove, a connecting plate, a limiting shaft, and a spring. The limiting slide groove is formed on the inner wall of the fixed frame. The connecting plate is slidably connected to the inner wall of the limiting slide groove and to the inner wall of the fixed frame. The limiting shaft is fixedly connected to the inner wall of the fixed frame, and its surface is slidably connected to the inner wall of the connecting plate. The spring is fixedly connected to the inner wall of the fixed frame and to the surface of the connecting plate.
[0009] Preferably, the wire guide mechanism consists of a fixed plate and a wire guide ring, wherein the fixed plate is fixedly connected to the left side of the fixed frame, and the wire guide ring is fixedly connected to the left side of the fixed plate.
[0010] Preferably, the detection and protection assembly consists of a support plate, an electric push rod, a clamping plate, and a contact sensor. The support plate is fixedly connected to the surface of the fixed plate, the electric push rod is fixedly connected to the inner wall of the support plate, the clamping plate is fixedly connected to the output end of the electric push rod, and the contact sensor is fixedly connected to the inner wall of the fixed frame, with the detection end of the contact sensor overlapping the surface of the connecting plate.
[0011] Preferably, the fixing frame is rectangular and made of metal.
[0012] Preferably, there are multiple springs, and all of the springs are located inside the fixed frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This electric towing device for pipeline mapping passes a steel cable connected to the mapping instrument through the inner wall of the wire guide mechanism and is fixed in the traction wheel. Activating the drive mechanism drives the fixed shaft and traction wheel to rotate and retract the steel cable, thus moving the mapping instrument. The stress generated by the steel cable traction drives the limit buffer assembly to move through the traction wheel, fixed shaft, and fixed frame, thereby buffering the traction force. When the traction stress is too large and the limit buffer assembly contacts the detection and protection assembly, the detection and protection assembly clamps the fixed steel cable, stopping the transmission of traction force and simultaneously stopping the drive mechanism, thus preventing the increased traction force from damaging the mapping instrument. This achieves the goal of easily buffering and protecting the traction force of the mapping instrument, avoiding the problem that existing towing equipment is difficult to control in terms of traction force, which can easily lead to damage to the mapping instrument due to excessive traction force. Attached Figure Description
[0014] Figure 1 This is an isometric drawing of the structure of this utility model;
[0015] Figure 2 This is an enlarged view of the structure at point A of this utility model;
[0016] Figure 3 This is a right sectional view of the structure of this utility model;
[0017] Figure 4This is an enlarged view of the structure at point B of this utility model;
[0018] Figure 5 This is a cross-sectional view of the structure of this utility model.
[0019] In the diagram: 1. Fixed frame; 2. Support column; 3. Anti-slip pad; 4. Limiting slide rail; 5. Limiting sleeve; 6. Fixed bracket; 7. Fixed shaft; 8. Traction wheel; 9. Servo motor; 10. Drive wheel; 11. Transmission belt; 12. Driven wheel; 13. Limiting groove; 14. Connecting plate; 15. Limiting shaft; 16. Spring; 17. Fixed plate; 18. Wire ring; 19. Support plate; 20. Electric push rod; 21. Clamping plate; 22. Contact sensor. Detailed Implementation
[0020] 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.
[0021] Reference Figure 1-5An electric towing device for pipeline mapping includes a fixed frame 1, which is rectangular and made of metal. The metal frame 1 is stronger, less prone to deformation and damage under stress, and more durable. A support column 2 is fixedly connected to the bottom of the fixed frame 1, and an anti-slip pad 3 is fixedly connected to the bottom of the support column 2. A limit rail 4 is fixedly connected to the top of the fixed frame 1, and a limit sleeve 5 is sleeved on the surface of the limit rail 4. A fixed frame 6 is fixedly connected to the top of the limit sleeve 5. A fixed shaft 7 is rotatably connected to the inner wall of the fixed frame 6, and a traction wheel 8 is fixedly connected to the surface of the fixed shaft 7. The traction wheel 8 is rotatably connected to the inner wall of the fixed frame 6. A drive mechanism is provided on the front of the fixed frame 6, consisting of a servo motor 9, a drive wheel 10, a transmission belt 11, and a driven wheel 12. The servo motor 9 is fixedly connected to the front of the fixed frame 6, the inner wall of the drive wheel 10 is fixedly connected to the output end of the servo motor 9, the transmission belt 11 meshes with the inner wall of the drive wheel 10, and the inner wall of the driven wheel 12 is fixed to the surface of the fixed shaft 7. The driven wheel 12 is connected to the inner wall of the transmission belt 11, which is used to drive the traction wheel 8 to rotate, so as to facilitate the automatic traction and dragging of the surveying instrument. The fixed frame 1 is equipped with a limit buffer assembly, which consists of a limit slide 13, a connecting plate 14, a limit shaft 15 and a spring 16. There are multiple springs 16, and all of them are located inside the fixed frame 1, which are used to buffer the traction force and improve the buffering efficiency. The limit slide 13 is opened in the inner wall of the fixed frame 1. The connecting plate 14 is slidably connected to the inner wall of the limit slide 13 and the inner wall of the fixed frame 1. The limit shaft 15 is fixedly connected to the inner wall of the fixed frame 1, and the surface of the limit shaft 15 is slidably connected to the inner wall of the connecting plate 14. The spring 16 is fixedly connected to the inner wall of the fixed frame 1 and the surface of the connecting plate 14, which is used to buffer the stress generated by traction and effectively prevent excessive traction force. A wire guide mechanism is provided on the left side of the fixed frame 1, and a detection and protection assembly is provided on the left side of the fixed frame 1.
[0022] Specifically, the conductor mechanism consists of a fixed plate 17 and a conductor ring 18. The fixed plate 17 is fixedly connected to the left side of the fixed frame 1, and the conductor ring 18 is fixedly connected to the left side of the fixed plate 17. It is used to assist the movement of the steel cable and improve the traction stability.
[0023] Specifically, the detection and protection assembly consists of a support plate 19, an electric push rod 20, a clamping plate 21, and a contact sensor 22. The support plate 19 is fixedly connected to the surface of the fixing plate 17, the electric push rod 20 is fixedly connected to the inner wall of the support plate 19, the clamping plate 21 is fixedly connected to the output end of the electric push rod 20, and the contact sensor 22 is fixedly connected to the inner wall of the fixing frame 1. The detection end of the contact sensor 22 overlaps with the surface of the connecting plate 14 to clamp and fix the steel cable, thus preventing a sudden increase in the traction force of the steel cable in complex environments.
[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0025] In use: First, the steel cable connected to the surveying instrument is passed through the inner wall of the guide ring 18 and fixed in the traction wheel 8. The servo motor 9 drives the drive wheel 10 and the transmission belt 11 to rotate. Through the meshing of the transmission belt 11 and the driven wheel 12, the fixed shaft 7 and the traction wheel 8 are driven to rotate along the inner wall of the fixed frame 6, thus winding up the steel cable to traction and move the surveying instrument. The stress generated during the traction of the steel cable is transmitted to the fixed frame 6 through the traction wheel 8 and the fixed shaft 7. After the fixed frame 6 is subjected to force, it drives the limiting sleeve 5 to move along the limiting slide rail 4. The surface slides to the left, and the movement of the fixing frame 6 drives the connecting plate 14 to slide to the left along the inner wall of the limiting slide groove 13 and the surface of the limiting shaft 15. At the same time, the spring 16 is squeezed. Through the compression and rebound of multiple springs 16, the stress generated by traction can be buffered. When the traction stress is too large, the connecting plate 14 contacts the contact sensor 22, and the electric push rod 20 is activated to push the clamping plate 21 to clamp the fixed steel cable, which can stop the transmission of traction force. At the same time, the servo motor 9 is stopped, which can prevent the traction force from increasing and damaging the surveying instrument.
[0026] In summary, this electric towing device for pipeline mapping uses a steel cable connected to the mapping instrument, which passes through the inner wall of the conductor mechanism and is fixed in the traction wheel 8. Activating the drive mechanism drives the fixed shaft 7 and the traction wheel 8 to rotate and retract the steel cable, thus moving the mapping instrument. The stress generated by the steel cable traction drives the limit buffer assembly to move through the traction wheel 8, fixed shaft 7, and fixed frame 6, thereby buffering the traction force. When the traction stress is too high and the limit buffer assembly contacts the detection and protection assembly, the detection and protection assembly clamps the fixed steel cable, stopping the transmission of traction force and simultaneously stopping the drive mechanism. This prevents the increased traction force from damaging the mapping instrument, achieving the goal of easily buffering and protecting the mapping instrument's traction force. It avoids the problem of existing towing equipment being unable to effectively control the traction force, which can easily lead to damage to the mapping instrument due to excessive traction force. This device solves the problems mentioned in the background art.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] 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 can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electrically powered towing device for pipeline mapping, comprising a stationary frame (1), characterized in that, The bottom surface of the fixed frame (1) is fixedly connected with a supporting column (2), the bottom surface of the supporting column (2) is fixedly connected with an anti-skid pad (3), the top surface of the fixed frame (1) is fixedly connected with a limiting sliding rail (4), the surface of the limiting sliding rail (4) is sleevedly connected with a limiting sliding sleeve (5), the top surface of the limiting sliding sleeve (5) is fixedly connected with a fixed frame (6), the inner wall of the fixed frame (6) is rotatably connected with a fixed shaft (7), the surface of the fixed shaft (7) is fixedly connected with a traction wheel (8), and the traction wheel (8) is rotatably connected with the inner wall of the fixed frame (6), the front surface of the fixed frame (6) is provided with a driving mechanism, the inside of the fixed frame (1) is provided with a limiting buffer assembly, the left side of the fixed frame (1) is provided with a wire guiding mechanism, and the left side of the fixed frame (1) is provided with a detection protection assembly.
2. An electrically powered towed device for pipeline surveying according to claim 1, characterized in that, The driving mechanism is composed of a servo motor (9), a driving wheel (10), a transmission belt (11) and a driven wheel (12), the front surface of the fixed frame (6) is fixedly connected with the servo motor (9), the inner wall of the driving wheel (10) is fixedly connected with the output end of the servo motor (9), the inner wall of the driving wheel (10) is engaged with the transmission belt (11), and the inner wall of the driven wheel (12) is fixedly connected with the surface of the fixed shaft (7), and the inner wall of the driven wheel (12) is engaged with the transmission belt (11).
3. An electrically powered towed device for pipeline surveying according to claim 1, characterized in that, The limiting buffer assembly is composed of a limiting sliding groove (13), a connecting plate (14), a limiting shaft (15) and a spring (16), the inner wall of the fixed frame (1) is provided with the limiting sliding groove (13), the inner wall of the limiting sliding groove (13) is slidably connected with the connecting plate (14), the inner wall of the fixed frame (1) is slidably connected with the connecting plate (14), the inner wall of the fixed frame (1) is fixedly connected with the limiting shaft (15), the surface of the limiting shaft (15) is slidably connected with the inner wall of the connecting plate (14), the inner wall of the fixed frame (1) is fixedly connected with the spring (16), and the surface of the spring (16) is fixedly connected with the connecting plate (14).
4. An electrically powered towed apparatus for pipeline surveying according to claim 1, characterised in that, The wire guiding mechanism is composed of a fixed plate (17) and a wire guiding ring (18), the left side of the fixed plate (17) is fixedly connected with the fixed frame (1), and the left side of the wire guiding ring (18) is fixedly connected with the fixed plate (17).
5. An electrically powered towed device for pipeline surveying according to claim 4, characterised in that, The detection protection assembly is composed of a supporting plate (19), an electric push rod (20), a clamping plate (21) and a contact sensor (22), the surface of the supporting plate (19) is fixedly connected with the fixed plate (17), the inner wall of the supporting plate (19) is fixedly connected with the electric push rod (20), the output end of the electric push rod (20) is fixedly connected with the clamping plate (21), the inner wall of the fixed frame (1) is fixedly connected with the contact sensor (22), and the detection end of the contact sensor (22) is overlapped with the surface of the connecting plate (14).
6. An electrically powered towed device for pipeline surveying according to claim 1, characterized in that, The fixed frame (1) is in a rectangular shape, and the fixed frame (1) is made of a metal material.
7. An electrically powered towed device for pipeline surveying according to claim 3, characterised in that, The number of the springs (16) is multiple, and the multiple springs (16) are located in the inside of the fixed frame (1).