Mounting and supporting device suitable for large-diameter pipeline

Abstract

The utility model provides an installation supporting device suitable for a large-diameter pipeline, and belongs to the technical field of detection devices.The installation supporting device comprises a supporting frame assembly, a supporting rod assembly, odometer wheels and auxiliary wheels, and the supporting frame assembly comprises a first supporting frame, a second supporting frame, a third supporting frame and a connecting rod; a plurality of connecting rods are fixedly connected between the first support frame and the third support frame; the second support frame is in limited sliding connection with the connecting rod; the multiple sets of supporting rod assemblies are evenly distributed on the periphery of the supporting frame assembly in the radial direction. The odometer wheel is mounted at the other end of the first supporting rod; the auxiliary wheel is installed at the other end of the second supporting rod. The supporting device is convenient to disassemble and assemble, stable and steady in supporting and capable of adapting to various different pipe diameters by replacing compression springs with different lengths.

Description

Technical Field

[0001] The present application belongs to the technical field of detection devices, and relates to a support structure of a detection device in a pipeline, and specifically is an installation support device suitable for large-diameter pipelines. Background Art

[0002] Pipeline is one of the important original structural parts commonly used in various construction processes. The performance of pipeline is crucial to the construction quality. Therefore, the accuracy of pipeline performance testing is particularly important. At present, for large-diameter pipelines (diameter above 400mm), how to ensure that the locator and other related testing instruments are stably and conveniently set on the pipeline for measurement during testing has not been properly solved. The installation of the existing testing instrument support device for large-diameter pipelines is relatively complicated, time-consuming and labor-intensive, and the effect is not very good. Summary of the invention

[0003] The purpose of the present application is to overcome the deficiencies of the prior art and provide an installation support device suitable for large diameter pipelines.

[0004] An installation support device suitable for large-diameter pipelines, comprising:

[0005] The support frame assembly comprises a first support frame, a second support frame, a third support frame and a connecting rod. The first support frame, the second support frame and the third support frame are coaxially arranged at intervals. A plurality of connecting rods are fixedly connected between the first support frame and the third support frame. The second support frame is limitedly slidably connected to the connecting rod.

[0006] A support rod assembly, wherein the support rod assembly is a plurality of groups, and the plurality of groups of support rod assemblies are radially evenly distributed on the outer periphery of the support frame assembly; the support rod assemblies each include a first support rod and a second support rod, the first support rod and the middle part of the second support rod are hinged by a pin, one end of the first support rod is hinged to the first support frame, and one end of the second support rod is hinged to the second support frame, and the radial size of the support rod assembly can be adjusted;

[0007] A mileage wheel, the mileage wheel is mounted on the other end of the first support rod;

[0008] An auxiliary wheel is installed at the other end of the second support rod.

[0009] By adopting the above technical solution, a plurality of support rod assemblies are arranged on the periphery of the support frame assembly, and a mileage wheel is installed at the radial outer end of the support frame assembly, and the mileage wheel can keep abutting against the inner wall of the pipe for rolling, and the support rod assembly can adjust the radial size, so that the radial size of the mileage wheel can be adjusted, so that the support device can be stably supported inside the pipe and move smoothly inside the pipe. The auxiliary wheel is used to ensure that the support structure can be stably supported inside the pipe.

[0010] Preferably, the connecting rods between the second support frame and the third support frame are both provided with compression springs.

[0011] By adopting the above technical solution, the compression spring can maintain the supporting force on the second support frame, and then maintain the supporting force of the support rod assembly, so that the mileage wheel can maintain an abutment state with the inside of the pipe, thereby effectively supporting and maintaining stability; and ensuring the detection effectiveness of the mileage wheel.

[0012] Preferably, a limiting ring is provided on the connecting rod between the second supporting frame and the first supporting frame.

[0013] By adopting the above technical solution, the setting position of the limit ring is set according to the size of the support device and the size of the pipeline, so that the second support frame can move between the limit ring and the third support frame, thereby achieving the required support size and limiting the maximum radial size of the support frame fixing assembly.

[0014] Preferably, a linear bearing is provided between the second support frame and the connecting rod, and the linear bearing is fixedly connected to the second support frame.

[0015] By adopting the above technical solution, linear bearings are installed at the sliding contact surface position, which effectively ensures sliding flexibility and reduces wear.

[0016] Preferably, a spacer sleeve is detachably mounted on the connecting rod between the linear bearing and the limiting ring.

[0017] By adopting the above technical solution, the distance between the second support frame and the limiting ring can be adjusted by setting the spacer sleeve, and the required size of the spacer sleeve can be selected according to needs.

[0018] Preferably, a fixing frame is fixedly mounted in the middle of the plurality of connecting rods, and the fixing frame and the first supporting frame can jointly fix the instrument for detection.

[0019] By adopting the above technical solution, the installation stability of the detection instrument is further ensured by setting a fixing frame.

[0020] Preferably, a traction cover is fixed to each of the two ends of the support frame assembly, and a traction connector is fixedly connected to the traction cover.

[0021] By adopting the above technical solution, the traction connector is firmly connected to the end of the support device through the traction cover, and the support device is easily pulled to move in the pipeline through the traction connector.

[0022] Preferably, both the first support rod and the second support rod are provided with a bend.

[0023] By adopting the above technical solution, a bend is provided at a position close to the mileage wheel or the auxiliary wheel, so as to strengthen the structural strength of the end portion and enhance the stability.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. This support device is easy to disassemble and assemble, and the support is firm and stable. By replacing compression springs of different lengths, it can adapt to a variety of different pipe diameters.

[0026] 2. This support device can be equipped with a spacer sleeve to achieve full coverage of the pipe diameter by replacing the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the front view of this supporting device.

[0028] Figure 2 yes Figure 1 Top view of the .

[0029] Figure 3 yes Figure 2 AA section view.

[0030] Figure 4 It is a three-dimensional structural schematic diagram of the support device.

[0031] Figure 5 yes Figure 4 Schematic diagram of the specific enlarged structure of part B in the middle.

[0032] Figure numerals: 1. traction connecting piece; 2. traction cover; 3. first support frame; 4. instrument; 5. connecting rod; 6. auxiliary wheel; 7. second support rod; 8. pin shaft; 9. first support rod; 10. mileage wheel; 11. second support frame; 12. compression spring; 13. third support frame; 14. fixing frame; 15. limiting ring; 16. linear bearing; 17. spacer sleeve; 18. washer. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings.

[0034] See attached Figure 1 As shown, a mounting support device suitable for large diameter pipelines includes a first support frame 3, a third support frame 13, a connecting rod 5, a second support frame 11, a first support rod 9, a mileage wheel 10, a second support rod 7 and an auxiliary wheel 6.

[0035] The first support frame 3 and the third support frame 13 are coaxially spaced and arranged, and a plurality of connecting rods 5 are fixedly connected between the first support frame 3 and the third support frame 13, and the plurality of connecting rods 5 are parallel to each other. The first support frame 3, the third support frame 13 and the connecting rods 5 constitute a support frame fixing assembly; the second support frame 11 is slidably connected to the connecting rods 5;

[0036] In this embodiment, three connecting rods 5 are arranged in parallel and at intervals; an instrument 4 for detection is fixedly connected to the end of the first support frame 3 between the multiple connecting rods 5 (the instrument 4 can be replaced according to the detection needs),

[0037] The outer periphery of the first support frame 3 is evenly spaced and hinged with a plurality of first support rods 9, and the free ends of the first support rods 9 are all installed with mileage wheels 10, which are connected to the instrument 4 through a line; the mileage wheel 10 is a device for determining the position of defects in the pipe, which is mainly placed on the periphery of the overall structure of the detection device and in contact with the pipe wall, and rotates with the movement of the detection device. When the detection device moves to the defect position in the pipe, the identification signal of the defect detection sensor will change. By extracting the mileage number recorded by the mileage wheel 10 at the same time, the defect in the pipe can be located. The mileage wheel 10 is connected to the corresponding instrument 4 to obtain the corresponding detection result.

[0038] A plurality of second support rods 7 are hingedly connected at even intervals on the outer periphery of the second support frame 11, and auxiliary wheels 6 are installed at the free ends of the second support rods 7. The first support rods 9 correspond to the second support rods 7 one by one, and the corresponding first support rods 9 and the second support rods 7 are hingedly connected by a pin shaft 8 in the middle part, and the first support rods 9 and the second support rods 7 connected by the pin shaft 8 form a set of support rod components.

[0039] As shown in the attached drawings of this embodiment, for pipes with a diameter of DN600 or more, six groups are evenly distributed along the circumferential direction to increase support stability; for pipes with a diameter of DN400-DN600, three groups can be evenly distributed along the circumferential direction.

[0040] When the second support frame 11 moves, the first support rod 9 and the second support rod 7 swing synchronously relative to each other. As the first support rod 9 and the second support rod 7 rotate, the mileage wheel 10 and the auxiliary wheel 6 respectively extend and retract radially in the circumferential direction, and the mileage wheel 10 group and the auxiliary wheel 6 group can be supported on the inner wall of the tube body respectively.

[0041] In order to match the inner diameter of the pipe to be detected, the radial size of the mileage wheel 10 is adjusted, and the second support frame 11 can coaxially reciprocate along the connecting rod 5. A limit ring 15 is fixedly installed on the connecting rod 5 between the second support frame 11 and the first support frame 3. The limit ring 15 is used to limit the movement range of the second support frame 11;

[0042] A compression spring 12 is mounted on the connecting rod 5 between the second support frame 11 and the third support frame 13. The two ends of the compression spring 12 abut against the second support frame 11 and the third support frame 13 respectively, thereby providing a supporting force for the second support frame 11, thereby keeping the mileage wheel 10 and the auxiliary wheel 6 abutting against the inner wall of the tube.

[0043] In this embodiment, the first support frame 3, the second support frame 11, and the third support frame 13 are regular hexagonal flat plate structures with the same outer dimensions, and can be set to other regular polygonal structures as needed.

[0044] In order to increase the strength, the first support rod 9 and the second support rod 7 are both made of seamless steel pipes. Other materials can also be used as long as the required strength is achieved. The first support rod 9 and the second support rod 7 are both provided with bends.

[0045] See attached Figure 2 As shown, in order to control the movement of the device and facilitate pulling, a traction cover 2 is fixedly connected to the end surface of the first support frame 3 and the third support frame 13 that are away from the connecting rod 5, and a traction connecting piece 1 is fixedly installed in the middle of the traction cover 2. The traction piece can be connected to structures such as steel cables or pull rods to drive the device to move inside the tube body.

[0046] See attached Figure 3 As shown, in order to reduce friction resistance, linear bearings 16 are installed at the connection position between the second support frame 11 and the connecting rod 5.

[0047] See attached Figure 3 , 5 As shown, in order to reduce the elongation of the compression spring 12, a spacer sleeve 17 can be installed between the limit ring 15 and the linear bearing 16, and a washer 18 is installed between the spacer sleeve 17 and the linear bearing 16. The compression spring 12 is a replaceable structure, and the pipe diameter requirement can be met by replacing the spring. The length of the compression spring 12 can be changed to adapt to different pipe diameters.

[0048] See attached Figure 4 As shown, in order to ensure the installation stability of the instrument 4 , a fixing frame 14 is fixedly connected to the middle of the plurality of connecting rods 5 , and the instrument 4 for detection is installed between the fixing frame 14 and the first supporting frame 3 .

[0049] The supporting device of the present application can be used not only for the detection of large-diameter pipes above DN400, but also for ordinary pipes and small-sized pipes of DN400 and below.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mounting support device suitable for large diameter pipelines, characterized in that: include: A support frame assembly comprises a first support frame (3), a second support frame (11), a third support frame (13) and a connecting rod (5); the first support frame (3), the second support frame (11) and the third support frame (13) are coaxially arranged at intervals; a plurality of connecting rods (5) are fixedly connected between the first support frame (3) and the third support frame (13); and the second support frame (11) is limitedly slidably connected to the connecting rod (5); Support rod assemblies, the support rod assemblies are multiple groups, and the multiple groups of support rod assemblies are radially evenly distributed on the periphery of the support frame assembly; The support rod assembly comprises a first support rod (9) and a second support rod (7), the first support rod (9) and the second support rod (7) are hinged at the middle, one end of the first support rod (9) is hinged to the first support frame (3), and one end of the second support rod (7) is hinged to the second support frame (11), and the radial size of the support rod assembly can be adjusted; A mileage wheel (10), the mileage wheel (10) being connected to the other end of the first support rod (9); An auxiliary wheel (6) is mounted on the other end of the second support rod (7).

2. The installation support device suitable for large diameter pipelines according to claim 1, characterized in that: A compression spring (12) is mounted on the connecting rod (5) between the second support frame (11) and the third support frame (13).

3. The installation support device suitable for large diameter pipelines according to claim 2, characterized in that: A limiting ring (15) is provided on the connecting rod (5) between the second supporting frame (11) and the first supporting frame (3).

4. The installation support device suitable for large diameter pipelines according to claim 3, characterized in that: A linear bearing (16) is provided between the second support frame (11) and the connecting rod (5), and the linear bearing (16) is fixedly connected to the second support frame (11).

5. The installation support device suitable for large diameter pipelines according to claim 4, characterized in that: A spacer sleeve (17) is detachably mounted on the connecting rod (5) between the linear bearing (16) and the limiting ring (15).

6. The installation support device suitable for large diameter pipelines according to claim 1, characterized in that: A fixing frame (14) is fixedly mounted in the middle of the plurality of connecting rods (5), and the fixing frame (14) and the first supporting frame (3) can jointly fix the instrument (4) for detection.

7. The installation support device suitable for large diameter pipelines according to claim 1, characterized in that: A traction cover (2) is fixed to each of the two ends of the support frame assembly, and a traction connecting piece (1) is fixedly connected to the traction cover (2).

8. The installation support device suitable for large diameter pipelines according to claim 1, characterized in that: The first support rod (9) and the second support rod (7) are both provided with bends.

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