Pipeline joint butt joint sealing performance detection device

Abstract

The utility model provides a pipeline joint butt joint sealing performance detection device which comprises a fixing ring, the left and right sides of the outer wall of the fixing ring are fixedly connected with annular rubber rings, the left and right sides of the inner wall of the fixing ring are fixedly connected with inflation branch pipes, and the inflation branch pipes are communicated with the left and right annular rubber rings. An inflation pipe is fixedly connected to the inner wall of an inner cavity of the fixing ring, the tail end of the inflation pipe extends out of the fixing ring, the other end of the inflation pipe is communicated with the outer wall of the fixing ring, and a sliding device is arranged in the middle of the outer wall of the fixing ring. The device is simple in structure and convenient to operate, the detection efficiency is effectively improved, and meanwhile the sealing performance of pipeline butt joint is effectively improved.

Description

Technical Field

[0001] The present disclosure specifically discloses the technical field of pipeline sealing, and in particular relates to a pipeline joint butt sealing detection device. Background Art

[0002] When air conditioning and fresh air are used, air needs to be supplied through some pipes such as metal pipes and PVC pipes. Due to the length of the pipes, the pipes need to be connected through joints. Generally, after the pipes are connected, the workers will not perform pipe sealing tests. If there are problems with the sealing, it will lead to rework later, increasing the installation cost.

[0003] According to application number 202010744907.4, a device and method for detecting the sealing performance of concrete pipe joints are disclosed. The main body of the device includes a hub-type ring body, an inflatable sealing ring, and a bracket; two inflatable sealing rings are installed on the outer ring of the hub-type ring body, and an annular groove is formed between the two inflatable sealing rings and the outer ring surface of the hub-type ring body; a water injection hole is opened in the annular groove; a support structure is provided on the circumference of the inner ring of the hub-type ring body, and the bracket with movable wheels is connected to the support structure. During testing, the main body of the device is placed at the position of the pipe joint, and then the inflatable sealing ring is inflated to form an annular chamber at the pipe joint. The annular chamber is filled with water and pressure tested using a water pressure pump to complete the test of the sealing performance of the pipe joint.

[0004] The existing sealing detection device needs to be pressure tested with water, which is cumbersome to operate and cannot perform sealing detection on pipes with different inner diameters. In addition, the sealing detection device located in the pipe cannot be moved, resulting in it being unable to be removed after the test, affecting the normal use of the pipe. For this reason, we propose a pipe joint butt sealing detection device. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a structure that is adaptable to different specifications and convenient to move.

[0006] A pipe joint butt sealing detection device includes a fixed ring, annular rubber rings are fixedly connected to the left and right sides of the outer wall of the fixed ring, and inflation branches are fixedly connected to the left and right sides of the inner wall of the fixed ring. The inflation branches are connected to the left and right annular rubber rings. The inner wall of the inner cavity of the fixed ring is fixedly connected to an inflation tube, the end of the inflation tube extends to the outside of the fixed ring, and the other end of the inflation tube is connected to the outer wall of the fixed ring. A sliding device is provided in the middle of the outer wall of the fixed ring.

[0007] According to the technical solution provided in the embodiment of the present application, the sliding device includes a telescopic rod, a connecting seat and a roller. The telescopic rod is evenly fixedly connected to the middle of the outer wall of the fixed ring, the end of the telescopic rod is fixedly connected to the connecting seat, the roller is movably connected to the inner cavity of the connecting seat, and a rubber pad is bonded to the outer wall of the roller.

[0008] According to the technical solution provided in the embodiment of the present application, six groups of rollers are provided, and the six groups of rollers are arranged in a ring array on the outer wall of the fixing ring.

[0009] According to the technical solution provided in the embodiment of the present application, a detection pipe is sleeved on the outside of the fixing ring, and a joint is provided in the middle of the two groups of detection pipes.

[0010] According to the technical solution provided in the embodiment of the present application, the detection pipeline is located in the inner cavity of the detection pool.

[0011] According to the technical solution provided in the embodiment of the present application, the end of the inflation tube is fixedly connected to a bellows, and the bellows is a plastic bellows.

[0012] In summary, the present application discloses a device for detecting the sealing performance of pipe joints.

[0013] Beneficial effects:

[0014] 1. Through the annular rubber ring, inflation branch pipe, inflation pipe and bellows, by inflating the inflation branch pipe, ensure that the annular rubber ring and the pipe form a closed space, and then inflate through the inflation pipe and combine with the water source to detect the sealing of the joint. It has a simple structure and high detection efficiency.

[0015] 2. After the fixed ring and the sliding device are connected, the telescopic rod and the roller can be extended and retracted to ensure that the roller can contact the inside of the pipe, making it convenient for the fixed ring to move inside the pipe. The telescopic rod is used to ensure that the fixed ring is located in the center of the pipe cavity. When inflated, the annular rubber ring can fit tightly against the inner wall of the pipe, and the space between the annular rubber ring and the pipe is well sealed, so that the sealing of the pipe joint can be accurately detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of a pipe joint butt tightness detection device in this application;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the pipe joint sealing detection device in this application;

[0019] Figure 3This is a schematic diagram of the experimental structure for testing the sealing properties of pipe joints in this application.

[0020] In the figure: 1. fixing ring; 2. annular rubber ring; 3. connecting seat; 4. roller; 5. inflation branch pipe; 6. inflation pipe; 7. bellows; 8. detection pool; 9. detection pipeline; 10. joint; 11. telescopic rod. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] As mentioned in the background technology, the sealing detection device in the existing technology needs to be pressure tested by moisture, which is cumbersome to operate and cannot perform sealing detection on pipes with different inner diameters. In addition, the sealing detection device located in the pipe cannot be moved, resulting in the inability to be removed after detection, affecting the normal use of the pipe. The present disclosure proposes a structure that can adapt to different specifications and is easy to move.

[0024] Example 1

[0025] See also Figure 1 A pipe joint butt sealing detection device includes a fixing ring 1, and the length of the fixing ring 1 is greater than the length of the joint 10, so that the sealing of the joint 10 position can be detected. In order to ensure that the fixing ring 1 can play the role of sealing detection, annular rubber rings 2 are fixedly connected on both sides of the outer wall of the fixing ring 1, and the inner wall of the inner ring of the annular rubber ring 2 is bonded to the outer wall of the fixing ring 1 to ensure the stability of the annular rubber ring 2. In order to ensure that the annular rubber ring can be inflated for sealing, inflation branches 5 are fixedly connected on both sides of the inner wall of the fixing ring 1, and the inflation branch 5 is connected to the left and right annular rubber rings 2.

[0026] See also Figure 1 and Figure 2 In order to ensure that there is no leakage at the position of the joint 10, gas detection must be passed. An inflation tube 6 is fixedly connected to the inner wall of the inner cavity of the fixed ring 1, and the end of the inflation tube 6 extends to the outside of the fixed ring 1. The other end of the inflation tube 6 is connected to the outer wall of the fixed ring 1 to ensure that gas can enter between the annular rubber ring 2 and the pipeline through the inflation tube 6. In order to facilitate the transportation of the fixed ring 1 into the pipeline or removal, a sliding device is provided in the middle of the outer wall of the fixed ring 1.

[0027] See also Figure 1 In order to ensure that the fixing ring 1 can adapt to the inspection of pipelines of different specifications and can slide inside different pipelines, while ensuring that the fixing ring 1 is located in the center of the pipeline, a sliding device is composed of a telescopic rod 11, a connecting seat 3 and a roller 4. The telescopic rod 11 is evenly fixedly connected to the middle of the outer wall of the fixing ring 1, and the connecting seat 3 is fixedly connected to the end of the telescopic rod 11. The roller 4 is movably connected to the inner cavity of the connecting seat 3, and the outer wall of the roller 4 is bonded with a rubber pad, which can prevent the inner wall of the pipeline from being scratched.

[0028] See also Figure 1 In order to ensure that the inner wall of the pipe is evenly stressed and that the fixed ring 1 is located in the center of the pipe, six groups of rollers 4 are provided, and the six groups of rollers 4 are arranged in a circular array on the outer wall of the fixed ring 1, thereby ensuring that the inflated annular rubber ring 2 can stably fit the inner wall of the pipe.

[0029] See also Figure 3 In order to facilitate detection, a detection pipe 9 is sleeved on the outside of the fixed ring 1, and two groups of detection pipes 9 are provided, and the two groups of detection pipes 9 are connected at the first position. A joint 10 is provided in the middle of the two groups of detection pipes 9, and the fixed ring 1 is located at the connection between the inner cavities of the two groups of detection pipes 9.

[0030] See also Figure 3 In order to further verify the effectiveness of the detection device, the detection pipe 9 is located in the inner cavity of the detection pool 8, and a water source is provided in the inner cavity of the detection pool 8. By inflating the inside of the inflation tube 6 and observing whether bubbles are generated at the connection between the two sets of detection pipes 9, the sealing of the joint 10 of the detection pipe 9 can be detected.

[0031] Example 2

[0032] See also Figure 1 In order to facilitate the inflation of the inflation tube 6, a bellows 7 is fixedly connected to the end of the inflation tube 6, and the bellows 7 is a plastic bellows. The bellows 7 can be retracted and fully, which facilitates the inflation of the inflation tube 6 and completes the detection work.

[0033] Working principle: When in use, place the fixing ring 1 inside the detection pipe 9, ensure that the roller 4 is in contact with the inner wall of the detection pipe 9, push the fixing ring 1 to move to the joint 10 of the two sets of detection pipes 9, and inflate the left and right inflation branches 5 to ensure that the left and right annular rubber rings 2 are inflated. When the outer walls of the left and right annular rubber rings 2 are in contact with the inner wall of the detection pipe 9, stop inflating, and place the detection pipe 9 inside the water source in the inner cavity of the detection pool 8. By inflating the bellows 7, the gas enters the gap between the left and right annular rubber rings 2 and the detection pipe 9 through the inflation pipe 6, and observe whether there are bubbles at the connection of the detection pipe 1. If bubbles are generated, it indicates that the sealing of the pipe joint is not enough.

[0034] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A pipe joint butt tightness detection device, comprising a fixing ring (1), characterized in that: The left and right sides of the outer wall of the fixing ring (1) are fixedly connected to an annular rubber ring (2), the left and right sides of the inner wall of the fixing ring (1) are fixedly connected to an inflation branch pipe (5), the inflation branch pipe (5) is connected to the left and right annular rubber rings (2), the inner wall of the inner cavity of the fixing ring (1) is fixedly connected to an inflation pipe (6), the end of the inflation pipe (6) extends to the outside of the fixing ring (1), the other end of the inflation pipe (6) is connected to the outer wall of the fixing ring (1), and a sliding device is provided in the middle of the outer wall of the fixing ring (1).

2. A pipe joint butt tightness detection device according to claim 1, characterized in that: The sliding device comprises a telescopic rod (11), a connecting seat (3) and a roller (4); the middle portion of the outer wall of the fixing ring (1) is evenly fixedly connected to the telescopic rod (11); the end of the telescopic rod (11) is fixedly connected to the connecting seat (3); the inner cavity of the connecting seat (3) is movably connected to the roller (4); and the outer wall of the roller (4) is bonded with a rubber pad.

3. A pipe joint butt tightness detection device according to claim 2, characterized in that: Six groups of rollers (4) are provided, and the six groups of rollers (4) are arranged in a ring array on the outer wall of the fixing ring (1).

4. The pipe joint butt tightness detection device according to claim 1, characterized in that: The exterior of the fixing ring (1) is sleeved with a detection pipe (9), and a joint (10) is provided in the middle of the two groups of detection pipes (9).

5. A pipe joint butt tightness detection device according to claim 4, characterized in that: The detection pipeline (9) is located in the inner cavity of the detection pool (8).

6. The pipe joint butt tightness detection device according to claim 1, characterized in that: The end of the inflation tube (6) is fixedly connected to a bellows (7), and the bellows (7) is a plastic bellows.

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