An auxiliary device for installing pipeline inspection equipment
By designing an adjustable fixed cylinder and movable support structure, the problem of insufficient adaptability of the fixed ring in the existing technology is solved, and the pipeline inspection equipment can be stably installed and conveniently transported at different wellheads.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CSCEC BRIDGES CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-30
AI Technical Summary
The fixed ring structure of existing pipeline inspection equipment is not easy to adjust according to the wellhead size, resulting in low adaptability and affecting the installation efficiency of the inspection equipment.
A device comprising a fixed cylinder, an installation rod, a fixed ring plate, and a limiting component was designed. Through the cooperation of a threaded sleeve and a lifting seat, the installation rod can be extended and retracted, and the movable support rod can be deployed to adapt to different wellhead sizes. It can also be disassembled into multiple combined rods for transportation and storage.
It enables the stable installation of pipeline inspection equipment at wellheads of different sizes, improving adaptability, and allows for a reduction in device size after use, facilitating transportation and storage.
Smart Images

Figure CN224435448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline inspection and installation auxiliary technology, specifically a pipeline inspection equipment installation auxiliary device. Background Technology
[0002] Urban drainage systems are engineering facilities systems that treat and remove urban sewage and rainwater. They are an integral part of urban public utilities, and municipal drainage pipelines, as a vital infrastructure for collecting urban sewage and rainwater, are the "lifeline" of a city. In recent years, with the continuous expansion of urban scale and the increasing improvement of living standards, urban drainage pipe networks have become increasingly complex. At the same time, severe urban flooding has placed higher demands on urban drainage systems, requiring regular inspection of their pipelines.
[0003] Chinese Patent Publication No. CN213089452U discloses an installation auxiliary device for a pipeline inspection equipment, including a pipeline to be tested, a pipeline inspection equipment, and an auxiliary component. A manhole is provided at the upper end of the pipeline to be tested, and an auxiliary component is provided at the upper manhole opening. A pipeline inspection equipment extending into the pipeline to be tested is provided on one side of the lower end of the auxiliary component. The auxiliary component includes a fixing ring connected to the upper manhole opening, and a connecting cylinder is provided at the middle of the end of the fixing block away from the fixing ring. The pipeline inspection equipment is located at the lower end of the placement tube, and several water flow holes are provided on the side of the placement tube where the pipeline inspection equipment is located.
[0004] However, the inventor of the above-mentioned device believes that it has certain defects. The above-mentioned device uses a fixed ring placed at the wellhead so that the detection equipment can be inserted into the pipeline for detection. The structure of the fixed ring is fixed and it is not convenient to adjust it according to the size of the wellhead, resulting in low adaptability. Therefore, this utility model provides an auxiliary device for the installation of pipeline detection equipment. Utility Model Content
[0005] The purpose of this utility model is to provide an auxiliary device for the installation of pipeline inspection equipment to solve the problems raised in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for installing pipeline inspection equipment, comprising a fixed cylinder, an installation rod, and a pipeline inspection device. The installation rod slides inside the fixed cylinder, and a fixing ring is fixedly connected to the outer surface of the installation rod. A bottom rod is installed at the bottom of the installation rod, and the pipeline inspection device is installed at one end of the bottom rod. A top box is fixedly connected to the top of the fixed cylinder, and a limiting component is provided inside the top box to restrict the downward sliding of the installation rod. The outer surface of the fixed cylinder is provided with external threads, and a threaded sleeve is threadedly connected to the outer surface of the fixed cylinder. A lifting seat is rotatably connected to the outer surface of the threaded sleeve, and a connecting rod is hinged to the lifting seat. A fixed seat is fixedly connected to one end of the fixed cylinder, and a movable frame rod is hinged to the fixed seat. The other end of the connecting rod is hinged to the movable frame rod.
[0007] Preferably, the limiting component includes a sliding block slidably connected to the inner side wall of the top box. One end of the sliding block is equipped with a movable stop bar, and one end of the movable stop bar is located between two fixed ring plates. The movable stop bar blocks the fixed ring plates, limiting the downward sliding of the entire mounting rod.
[0008] Preferably, the movable stop lever is hinged to one end of the sliding block by a pin, and a torsion spring is sleeved on the pin of the movable stop lever. The movable stop lever is hinged to one end of the sliding block, so that the movable stop lever can be flipped upward and the downward flipping of the movable stop lever is restricted.
[0009] Preferably, a connecting rod is fixedly connected to one side of the sliding block, one end of the connecting rod extends to the outside of the top box, and a push plate is fixedly connected to one end of the connecting rod. The push plate and the connecting rod facilitate the sliding block to slide horizontally inside the fixed cylinder.
[0010] Preferably, a spring is sleeved on the connecting rod, and a baffle is fixedly connected to the outer surface of the connecting rod. Under the action of the spring and the baffle, the connecting rod can quickly slide and reset when it is not under force.
[0011] Preferably, the mounting rod is composed of multiple combination rods, with a threaded joint fixedly connected to the top of the combination rod and a threaded hole adapted to the threaded joint at the bottom of the combination rod. The fixing ring is fixedly connected to the outer surface of the combination rod, and the multiple fixing rings are combined and connected vertically by the threaded joint and the threaded hole.
[0012] Preferably, the number of movable support rods is four, and the four movable support rods are distributed in a circular array around the fixed cylinder.
[0013] Preferably, the top of the bottom rod is threaded to the bottom of the mounting rod, and the bottom rod has multiple through holes, which allow water to flow through the bottom rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This application utilizes a rotating threaded sleeve to move the lifting seat upwards under the action of the external thread. A connecting rod then pushes the movable frame rod to unfold, allowing the fixed cylinder to be mounted on the manhole opening. The installation rod is driven downwards, and its sliding is restricted by a limiting component, thus fixing the position of the pipeline inspection equipment and allowing it to penetrate deep into the pipeline for inspection. Furthermore, by controlling the range of the movable frame rod's expansion, the device can be mounted on manholes of different sizes, exhibiting good adaptability. After use, the movable frame rod is retracted around the fixed cylinder by reversing the rotation of the threaded sleeve, reducing the overall footprint of the device and facilitating transportation and storage, thus demonstrating high practicality.
[0016] 2. This application uses multiple fixed ring pieces arranged vertically to form an installation rod, which is easy to adjust according to different manhole depths. After use, the multiple fixed ring pieces can be disassembled and separated for easy transportation and storage. Attached Figure Description
[0017] Figure 1 This is a perspective view of an installation auxiliary device for pipeline inspection equipment according to the present invention;
[0018] Figure 2 This utility model relates to an auxiliary device for installing pipeline inspection equipment. Figure 1 Enlarged view at point A;
[0019] Figure 3 This is a schematic diagram of the installation of the limiting components of an auxiliary device for installing pipeline inspection equipment according to this utility model;
[0020] Figure 4 This utility model relates to an auxiliary device for installing pipeline inspection equipment. Figure 3 Enlarged diagram at point S;
[0021] Figure 5 This is a perspective view of the mounting rod structure of an auxiliary device for installing pipeline inspection equipment according to this utility model;
[0022] Figure 6 This is a schematic diagram of the installation of the sliding block and movable stop bar of the auxiliary device for pipeline inspection equipment according to this utility model.
[0023] The following are the labels in the diagram: 1. Fixed cylinder; 11. External thread; 2. Mounting rod; 21. Fixed ring; 22. Combination rod; 3. Base rod; 4. Pipeline inspection equipment; 5. Fixed seat; 51. Movable support rod; 6. Threaded sleeve; 61. Lifting seat; 62. Connecting rod; 7. Top box; 8. Sliding block; 81. Movable stop bar; 9. Connecting tie rod; 91. Push plate; 92. Baffle plate. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 An auxiliary device for installing pipeline inspection equipment includes a fixed cylinder 1, an installation rod 2, and a pipeline inspection device 4. The installation rod 2 slides inside the fixed cylinder 1, and a fixing ring 21 is fixedly connected to the outer surface of the installation rod 2. A bottom rod 3 is installed at the bottom of the installation rod 2, and the pipeline inspection device 4 is installed at one end of the bottom rod 3. The installation rod 2 is hollow. The fixed cylinder 1 is placed at the manhole opening, allowing the installation rod 2 to slide inside the fixed cylinder 1, so that the pipeline inspection device 4 at one end of the bottom rod 3 can extend into the pipeline for inspection. The structure and working principle of the pipeline inspection device 4 have been disclosed in Chinese Patent Publication No. CN208072614U, "An Auxiliary Device for Installing Pipeline Inspection Equipment," and are existing technologies.
[0026] Please refer to it again. Figure 1 , Figure 3 and Figure 5 The mounting rod 2 is composed of multiple combination rods 22. The top of the combination rod 22 is fixedly connected to a threaded joint, and the bottom of the combination rod 22 is provided with a threaded hole that matches the threaded joint. The multiple combination rods 22 are connected in an upper and lower combination under the action of the threaded joint and the threaded hole. The length of the mounting rod 2 can be adjusted according to different manhole depths. The fixing ring 21 is fixedly connected to the outer surface of the fixing ring 21. The top of the bottom rod 3 is threadedly connected to the bottom of the mounting rod 2. The bottom rod 3 is provided with multiple through holes. The bottom rod 3 can be removed from the bottom of the mounting rod 2 by rotating the bottom rod 3.
[0027] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The top of the fixed cylinder 1 is fixedly connected to the top box 7. The top box 7 is equipped with a limiting component that restricts the downward sliding of the mounting rod 2. The limiting component includes a sliding block 8 that is slidably connected to the inner wall of the top box 7. The inner wall of the top box 7 is fixedly connected to a slide rail that supports the sliding block 8. A movable stop bar 81 is installed at one end of the sliding block 8. One end of the movable stop bar 81 is located between two fixed ring plates 21. The movable stop bar 81 is hinged to one end of the sliding block 8 by a pin. A torsion spring is sleeved at the pin of the movable stop bar 81. The mounting rod 2 is restricted from sliding down by the movable stop bar 81 abutting against the bottom surface of the fixed ring plate 21. When the mounting rod 2 rises, the fixed ring plate 21 squeezes the movable stop bar 81, pushing the movable stop bar 81 to flip upward. Then, the torsion spring rebounds and quickly resets the position.
[0028] Please refer to it again. Figure 1 and Figure 3 A connecting rod 9 is fixedly connected to one side of the sliding block 8. One end of the connecting rod 9 extends to the outside of the top box 7. A push plate 91 is fixedly connected to one end of the connecting rod 9. A spring is sleeved on the connecting rod 9. A baffle 92 is fixedly connected to the outer surface of the connecting rod 9. By pushing the push plate 91 closer to the top box 7, the connecting rod 9 pushes one end of the movable baffle 81 to slide out between the two fixed rings 21. When the push plate 91 is no longer under force, the sliding block 8 slides back to its original position through the spring rebound. The baffle 92 limits the maximum sliding position of the connecting rod 9.
[0029] Please refer to it again. Figure 1 and Figure 2 The outer surface of the fixed cylinder 1 is provided with an external thread 11. A threaded sleeve 6 is threadedly connected to the outer surface of the fixed cylinder 1. A lifting seat 61 is rotatably connected to the outer surface of the threaded sleeve 6. By rotating the threaded sleeve 6, the threaded sleeve 6 moves on the outer surface of the fixed cylinder 1 under the action of the external thread 11. A connecting rod 62 is hinged on the lifting seat 61. A fixed seat 5 is fixedly connected to one end of the fixed cylinder 1. A movable frame rod 51 is hinged on the fixed seat 5. The other end of the connecting rod 62 is hinged to the movable frame rod 51. There are four movable frame rods 51. The four movable frame rods 51 are distributed in a circumferential array around the fixed cylinder 1. By rotating the threaded sleeve 6, the lifting seat 61 rises around the fixed cylinder 1. The connecting rod 62 pushes the movable frame rod 51 to unfold. The fixed cylinder 1 is supported at the manhole opening by the multiple movable frame rods 51.
[0030] Working principle: The manhole cover at the wellhead is opened. Rotating the threaded sleeve 6 pushes the lifting seat 61 to slide upwards on the outer surface of the fixed cylinder 1. The connecting rod 62 pushes the movable support rod 51 outwards. Multiple movable support rods 51 support the fixed cylinder 1 at the wellhead. Multiple combination rods 22 are combined front and back to form the installation rod 2. The movable stop 81 and the fixing ring 21 restrict the sliding of the installation rod 2 inside the fixed cylinder 1, thus fixing the installation position of the pipeline inspection equipment 4. This ensures the pipeline inspection equipment at one end of the bottom rod 3... 4. The device is inserted into the pipe for inspection. By pushing the push plate 91 towards the top box 7, the sliding block 8 is pushed to slide inside the top box 7 under the action of the connecting rod 9. This allows the movable stop bar 81 to slide away from the fixed ring plate 21, thereby releasing the restriction on the installation rod 2 and facilitating the adjustment of the installation depth of the pipe inspection device 4. After use, the lifting seat 61 is lowered by rotating the threaded sleeve 6 in the opposite direction, so that the movable frame rod 51 is retracted around the fixed cylinder 1. The installation rod 2 is disassembled into multiple combination rods 22 to facilitate the overall transportation and storage of the device.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An apparatus installation aid for pipe inspection, comprising a fixing cylinder (1), an installation rod (2) and a pipe inspection apparatus (4), characterized in that: The mounting rod (2) slides inside the fixed cylinder (1). A fixed ring (21) is fixedly connected to the outer surface of the mounting rod (2). A bottom rod (3) is installed at the bottom of the mounting rod (2). The pipeline inspection device (4) is installed at one end of the bottom rod (3). A top box (7) is fixedly connected to the top of the fixed cylinder (1). A limiting component that restricts the downward sliding of the mounting rod (2) is provided inside the top box (7). The outer surface of the fixed cylinder (1) is provided with an external thread (11). The outer surface of the fixed cylinder (1) is threadedly connected to a threaded sleeve (6). The outer surface of the threaded sleeve (6) is rotatably connected to a lifting seat (61). A connecting rod (62) is hinged on the lifting seat (61). One end of the fixed cylinder (1) is fixedly connected to a fixed seat (5). A movable frame rod (51) is hinged on the fixed seat (5). The other end of the connecting rod (62) is hinged to the movable frame rod (51).
2. The device installation aid for pipe inspection of claim 1, wherein: The limiting component includes a sliding block (8) slidably connected to the inner wall of the top box (7), and a movable stop bar (81) is installed at one end of the sliding block (8), with one end of the movable stop bar (81) located between two fixed ring pieces (21).
3. The auxiliary device for installing pipeline inspection equipment according to claim 2, characterized in that: The movable stop (81) is hinged to one end of the sliding block (8) by a pin, and a torsion spring is sleeved at the pin of the movable stop (81).
4. The auxiliary device for installing pipeline inspection equipment according to claim 3, characterized in that: A connecting rod (9) is fixedly connected to one side of the sliding block (8), one end of the connecting rod (9) extends to the outside of the top box (7), and a push plate (91) is fixedly connected to one end of the connecting rod (9).
5. The auxiliary device for installing pipeline inspection equipment according to claim 4, characterized in that: A spring is sleeved on the connecting rod (9), and a baffle (92) is fixedly connected to the outer surface of the connecting rod (9).
6. The auxiliary device for installing pipeline inspection equipment according to claim 1, characterized in that: The mounting rod (2) is composed of multiple combination rods (22). The top of the combination rod (22) is fixedly connected to a threaded joint, and the bottom of the combination rod (22) is provided with a threaded hole that matches the threaded joint. The fixing ring (21) is fixedly connected to the outer surface of the combination rod (22).
7. The auxiliary device for installing pipeline inspection equipment according to claim 1, characterized in that: The number of movable support rods (51) is four, and the four movable support rods (51) are distributed in a circular array around the fixed cylinder (1).
8. The auxiliary device for installing pipeline inspection equipment according to claim 1, characterized in that: The top of the bottom rod (3) is threaded to the bottom of the mounting rod (2), and the bottom rod (3) has multiple through holes.