Pipeline access port structure for a telescopic seal joint

Abstract

The utility model relates to pipeline detection technical field discloses pipeline detection mouth structure of telescopic sealing joint, including protective sleeve, the bottom of protective sleeve is provided with magnet, the outside fixed connection of protective sleeve has reciprocating component, the inside slide connection of reciprocating component has slide rod, the inside fixed connection of slide rod in protective sleeve, the bottom fixed connection of reciprocating component has second fixed column, the bottom of second fixed column is provided with third fixed column, the bottom fixed connection of third fixed column has detection head. In the utility model, the motor drives first sprocket and chain rotation, thereby drive first fixed block moves or rotates, and further drive second sliding block reciprocating sliding, thereby drive second fixed column moves, and further can drive detection head reciprocating movement outside the pipeline, reach the effect that the convenience of detection operation is strengthened and the detection coverage is promoted.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, and in particular to the structure of a pipeline inspection port for a retractable sealing joint. Background Technology

[0002] To enable the inspection and maintenance of pipeline conditions, a dedicated inspection port structure is usually installed in the pipeline system. This structure needs to be sealed to the main body of the pipeline and provide an operating channel for the inspection instruments. Some devices are equipped with a simple inspection head installation structure to enable point inspection of specific areas.

[0003] However, existing devices have obvious limitations, making it difficult to meet detection requirements. The detection coverage is limited, and the fixed-position detection head is cumbersome to operate with a small detection range, which in turn affects the stable operation of the pipeline system. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a retractable sealing joint pipe inspection port structure, which aims to improve the problems of the existing pipe inspection port structure with fixed-position inspection heads that are complicated to operate and have a small inspection range.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The pipe inspection port structure of the retractable sealing joint includes a protective sleeve, a magnet at the bottom of the protective sleeve, a reciprocating assembly fixedly connected to the outside of the protective sleeve, a slide rod slidably connected inside the reciprocating assembly, the slide rod being fixedly connected to the inside of the protective sleeve, a second fixing post fixedly connected to the bottom of the reciprocating assembly, a third fixing post at the bottom of the second fixing post, and a detection head fixedly connected to the bottom of the third fixing post.

[0007] The above technical solution involves: the protective sleeve being hollow to protect the internal structure; a third fixing post at the top of the detection head for quick replacement of the new detection head; and a sliding groove inside the third fixing post for fixing the position of the detection head.

[0008] As a further description of the above technical solution:

[0009] The reciprocating assembly includes a motor, which is externally fixedly connected to the outside of the protective sleeve. The output end of the motor is connected to a first sprocket, the teeth of the first sprocket are engaged with a chain, the teeth of the chain are engaged with the first sprocket, a first fixing block is fixedly connected inside the chain, a second slider is rotatably connected to the outside of the first fixing block, the inside of the second slider is slidably connected to the outside of the slide rod, and the bottom end of the second slider is fixedly connected to the top end of the second fixing post.

[0010] The above technical solution involves the meshing connection of the first and second sprockets on both sides of the chain to make the chain more stable when rotating. The first fixing block is triangular and has two cylindrical fixing blocks at one end connected to the chain. The second fixing block has one cylindrical fixing block at the other end connected to the second slider to facilitate movement and rotation.

[0011] As a further description of the above technical solution:

[0012] The external sprocket of the first sprocket is rotatably connected to the inside of the protective sleeve.

[0013] The above technical solution involves providing cylindrical fixing blocks on one side of both the first and second sprockets, which rotate inside the protective sleeve to prevent them from slipping off.

[0014] As a further description of the above technical solution:

[0015] The second fixed column is externally fixedly connected to the first fixed column, and the third fixed column is externally slidably connected to the inside of the first fixed column.

[0016] The above technical solution involves using a longer cylinder as the second fixing column to prevent friction between the first fixing column and the reciprocating assembly.

[0017] As a further description of the above technical solution:

[0018] The first fixed column is provided with a second spring inside, and a second fixed block is provided at one end of the second spring. The outside of the second fixed block is slidably connected to the inside of the first fixed column.

[0019] Through the above technical solution: the second spring is a compression spring used to push the second fixed block.

[0020] As a further description of the above technical solution:

[0021] The second fixing block is externally fixedly connected to a first slider, the first slider is externally slidably connected to the outside of a first fixing post, one end of the second fixing block is engaged with a third fixing block, the outside of the third fixing block is externally slidably connected to the inside of the first fixing post, and one end of the third fixing block is engaged with the inside of the third fixing post.

[0022] The above technical solution involves a slot at one end of the second fixing block and an inclined protrusion at one end of the third fixing block that interlocks with the second fixing block.

[0023] As a further description of the above technical solution:

[0024] One end of the third fixing block is provided with a first spring, and one end of the first spring is located inside the first fixing post.

[0025] The above technical solution involves using a tension spring to tighten the third fixed block.

[0026] As a further description of the above technical solution:

[0027] The bottom end of the third fixing block is fixedly connected to a third slider, and the outside of the third slider is slidably connected to the inside of the first fixing column.

[0028] The above technical solution is as follows: the third slider is L-shaped with a round bottom for sliding connection to the first fixed post, and a square top for easy connection to the third fixed block, which facilitates the sliding of the third fixed block inside the first fixed post.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the motor drives the first sprocket and chain to rotate, thereby driving the first fixed block to move or rotate, which in turn drives the second slider to slide back and forth, thereby driving the second fixed column to move, which in turn drives the detection head to move back and forth outside the pipeline, thereby enhancing the convenience of detection operation and improving the detection coverage.

[0031] 2. In this utility model, the first slider and the second fixed block are manually rotated to slide, and the first spring pulls the third fixed block to slide, thereby moving the third fixed block away from the interior of the first fixed post. This allows the third fixed post and the detection head to be removed, enabling quick replacement of the detection head. This facilitates individual maintenance of the detection head and allows for handling of sudden detection needs. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the pipe inspection port structure of the retractable sealing joint proposed in this utility model.

[0033] Figure 2 This is a partial structural diagram of the chain in the pipe inspection port structure of the retractable sealing joint proposed in this utility model;

[0034] Figure 3 This is a partial structural diagram of the first fixing block of the pipe inspection port structure of the retractable sealing joint proposed in this utility model.

[0035] Figure 4 This is a partial structural diagram of the first fixed column of the pipe inspection port structure of the retractable sealing joint proposed in this utility model.

[0036] Figure 5 This is a partial structural diagram of the second fixing block of the pipe inspection port structure of the retractable sealing joint proposed in this utility model;

[0037] Figure 6 This is a partial structural diagram of the third slider of the pipe inspection port structure of the retractable sealing joint proposed in this utility model.

[0038] Legend:

[0039] 1. Protective sleeve; 2. Magnet; 3. Detection head; 4. First fixed post; 5. First slider; 6. Reciprocating assembly; 601. Motor; 602. First sprocket; 603. Chain; 604. First fixed block; 605. Second slider; 606. Second sprocket; 7. Third slider; 8. Second fixed post; 9. Slide rod; 10. Third fixed post; 11. First spring; 12. Second fixed block; 13. Second spring; 14. Third fixed block. Detailed Implementation

[0040] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] Reference Figures 1-4 An embodiment of this utility model provides a pipe inspection port structure for a retractable sealing joint, including a protective sleeve 1, a magnet 2 at the bottom of the protective sleeve 1, a reciprocating assembly 6 fixedly connected to the outside of the protective sleeve 1, a slide rod 9 slidably connected inside the reciprocating assembly 6, the slide rod 9 being fixedly connected to the outside of the protective sleeve 1, a second fixing post 8 fixedly connected to the bottom of the reciprocating assembly 6, a third fixing post 10 at the bottom of the second fixing post 8, and a detection head 3 fixedly connected to the bottom of the third fixing post 10.

[0042] Specifically, the bottom of the protective sleeve 1 is equipped with arc-shaped magnets 2 on both sides to fix it to the surface of the pipe and prevent the device from shifting. The sliding rod 9 is a rectangular strip to facilitate the smooth sliding of the reciprocating assembly 6. The detection head 3 is used to detect problems in the pipe. The reciprocating assembly 6 can drive the second fixed column 8, the third fixed column 10, and the detection head 3 to move back and forth outside the pipe. The detection head 3 is an integrated detection terminal module. Its top is connected to the telescopic transmission mechanism above through the third fixed column 10, and its bottom surface is the detection working surface for fitting against the outer wall of the pipe. The detection head 3 and the third fixed column 10 are fixedly connected. The third fixed column 10 is detachably installed below the first fixed column 4 and the second fixed column 8 through a snap-fit ​​mechanism, allowing the detection head 3 to be quickly replaced as needed.

[0043] Reference Figures 1-3The reciprocating assembly 6 includes a motor 601, which is externally fixedly connected to the outside of the protective sleeve 1. The output end of the motor 601 is connected to a first sprocket 602. The teeth of the first sprocket 602 are meshed with a chain 603. The teeth of the chain 603 are meshed with a second sprocket 606. The inside of the chain 603 is fixedly connected to a first fixing block 604. The outside of the first fixing block 604 is rotatably connected to a second slider 605. The inside of the second slider 605 is slidably connected to the outside of the slide rod 9. The bottom end of the second slider 605 is fixedly connected to the top end of the second fixing post 8. The outside of the first sprocket 602 is rotatably connected to the inside of the protective sleeve 1, and the outside of the second sprocket 606 is rotatably connected to the inside of the protective sleeve 1.

[0044] Specifically, motor 601 drives the first sprocket 602 to rotate. The first fixed block 604 rotates when it moves to one side of the first sprocket 602 or the second sprocket 606. The movement at the top and bottom of the chain 603 is due to the stability of the triangle, which allows the second slider 605 to reciprocate stably outside the slide bar 9. This, in turn, drives the second fixed column 8 to reciprocate outside the pipe, enhancing the convenience of the inspection operation. The inspection head 3 integrates detection sensors, such as ultrasonic thickness gauges, acoustic emission leak detectors, or eddy current flaw detectors. During inspection, the device is fixed to the outer wall of the pipe by magnet 2, with the bottom surface of the inspection head 3 in contact with the pipe wall. When motor 601 drives the reciprocating assembly 6, the inspection head 3 moves linearly back and forth along the slide bar 9 with the second fixed column 8, performing dynamic continuous scanning inspection of the pipe. By scanning along the axial or circumferential direction of the pipe with the inspection head 3, traditional fixed-point inspection can be extended to line scanning inspection, thereby obtaining continuous inspection data for a section of the pipe.

[0045] Reference Figure 5 and Figure 6 The second fixed post 8 is externally fixedly connected to the first fixed post 4, and the third fixed post 10 is externally slidably connected to the inside of the first fixed post 4. A second spring 13 is installed inside the first fixed post 4, and a second fixed block 12 is installed at one end of the second spring 13. The second fixed block 12 is externally slidably connected to the inside of the first fixed post 4. A first slider 5 is externally fixedly connected to the outside of the second fixed block 12, and the first slider 5 is externally slidably connected to the outside of the first fixed post 4. A third fixed block 14 is engaged at one end of the second fixed block 12, and the third fixed block 14 is externally slidably connected to the inside of the first fixed post 4. One end of the third fixed block 14 is engaged inside the third fixed post 10. A first spring 11 is installed at one end of the third fixed block 14, and one end of the first spring 11 is located inside the first fixed post 4. A third slider 7 is fixedly connected to the bottom end of the third fixed block 14, and the third slider 7 is externally slidably connected to the inside of the first fixed post 4.

[0046] Specifically, the first fixing post 4 has several grooves inside, within which the first slider 5, the third fixing post 10, the second fixing block 12, and the third fixing block 14 slide. The third fixing block 14 is a right-angled trapezoid, with one right-angled side engaging the third fixing post 10 and the oblique-angled side engaging the second fixing block 12. The third slider 7 is an important part for quick installation, and the first slider 5 is a semi-circular part for quick disassembly. Two first springs 11 are provided on each side inside the first fixing post 4 to further secure the third fixing post 10. The second spring 13 is located inside the arc-shaped groove of the first fixing post 4 to synchronize with the direction of the first slider 5, thereby enabling quick replacement of the third fixing post 10 and facilitating individual maintenance of the detection head 3. The third fixing post 10 and the first fixing post 4 are connected by a quick-disassembly and engagement mechanism composed of the first spring 11, the second spring 13, the second fixing block 12, the third fixing block 14, and the first slider 5, with the aim of enabling quick replacement of the detection head 3. In actual testing, different types or specifications of detection sensors may be required due to differences in pipe material, testing parameters, or testing objectives. Alternatively, individual maintenance and replacement may be necessary when the detection head is worn or malfunctions. This quick-assembly and disassembly mechanism can meet these needs.

[0047] Working principle: When the device is needed, the protective sleeve 1 is placed on the surface of the pipe and the magnet 2 fixes the device. Then, the motor 601 is turned on to drive the first sprocket 602 to rotate at the tooth end of the chain 603, thereby driving the chain 603 to rotate. This in turn drives the first fixed block 604 to move or rotate, and further drives the second slider 605 to slide outside the slide rod 9, thereby driving the second fixed column 8 and the third fixed column 10 to move. This can drive the detection head 3 to move back and forth outside the pipe, thereby enhancing the convenience of the detection operation and improving the detection coverage.

[0048] When the detection head 3 needs to be replaced, manually rotate the first slider 5 to slide it outside the first fixed post 4, thereby causing the second fixed block 12 to slide inside the first fixed post 4 and one end of the third fixed block 14. When the second fixed block 12 and the third fixed block 14 are not in contact, the first spring 11 pulls the third fixed block 14 to slide inside the first fixed post 4 and the third fixed post 10, thereby moving the third fixed block 14 away from the inside of the first fixed post 4. At the same time, the outside of the third fixed block 14 locks the second fixed block 12, preventing the second fixed block 12 from resetting. Then, the third fixed post 10 and the detection head 3 can be removed. To install the detection head 3, slide the third fixing post 10 inside the first fixing post 4, then press the third slider 7 to drive the third slider 7 and the third fixing block 14 to slide inside the first fixing post 4 and lock the third fixing post 10, so that there is no resistance on the outside of the second fixing block 12. Then the second spring 13 pushes the second fixing block 12 back to reset. After releasing the third slider 7, the first spring 11 pulls the third fixing block 14 to lock it inside the second fixing block 12 and the third fixing post 10 for fixation. This allows for quick replacement of the detection head 3, facilitating individual maintenance of the detection head 3 and meeting the needs of sudden detection.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe inspection port structure for a retractable sealing joint, including a protective sleeve (1), characterized in that: A magnet (2) is provided at the bottom end of the protective sleeve (1). A reciprocating assembly (6) is fixedly connected to the outside of the protective sleeve (1). A slide rod (9) is slidably connected inside the reciprocating assembly (6). The slide rod (9) is fixedly connected to the outside of the protective sleeve (1). A second fixing post (8) is fixedly connected to the bottom end of the reciprocating assembly (6). A third fixing post (10) is provided at the bottom end of the second fixing post (8). A detection head (3) is fixedly connected to the bottom end of the third fixing post (10).

2. The pipe inspection port structure of the retractable sealing joint according to claim 1, characterized in that: The reciprocating assembly (6) includes a motor (601), which is externally fixedly connected to the outside of the protective sleeve (1). The output end of the motor (601) is connected to a first sprocket (602). The teeth of the first sprocket (602) are meshed with a chain (603). The teeth of the chain (603) are meshed with a second sprocket (606). The inside of the chain (603) is fixedly connected to a first fixing block (604). The outside of the first fixing block (604) is rotatably connected to a second slider (605). The inside of the second slider (605) is slidably connected to the outside of the slide rod (9). The bottom end of the second slider (605) is fixedly connected to the top end of the second fixing post (8).

3. The pipe inspection port structure of the retractable sealing joint according to claim 2, characterized in that: The external rotatable connection of the first sprocket (602) is connected to the inside of the protective sleeve (1), and the external rotatable connection of the second sprocket (606) is connected to the inside of the protective sleeve (1).

4. The pipe inspection port structure of the retractable sealing joint according to claim 1, characterized in that: The second fixed column (8) is externally fixedly connected to the first fixed column (4), and the third fixed column (10) is externally slidably connected to the inside of the first fixed column (4).

5. The pipe inspection port structure of the retractable sealing joint according to claim 4, characterized in that: The first fixed column (4) is provided with a second spring (13) inside, and a second fixed block (12) is provided at one end of the second spring (13). The second fixed block (12) is slidably connected to the inside of the first fixed column (4).

6. The pipe inspection port structure of the retractable sealing joint according to claim 5, characterized in that: The second fixing block (12) is externally fixedly connected to a first slider (5), the first slider (5) is externally slidably connected to the outside of the first fixing post (4), one end of the second fixing block (12) is engaged with a third fixing block (14), the outside of the third fixing block (14) is externally slidably connected to the inside of the first fixing post (4), and one end of the third fixing block (14) is engaged with the inside of the third fixing post (10).

7. The pipe inspection port structure of the retractable sealing joint according to claim 6, characterized in that: One end of the third fixing block (14) is provided with a first spring (11), and one end of the first spring (11) is located inside the first fixing post (4).

8. The pipe inspection port structure of the retractable sealing joint according to claim 6, characterized in that: The bottom end of the third fixing block (14) is fixedly connected to the third slider (7), and the outside of the third slider (7) is slidably connected to the inside of the first fixing column (4).

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