Pipeline gas tightness quick release detection tool and pipeline gas tightness detection device

Abstract

The utility model belongs to detection device technical field especially points to a kind of pipeline airtightness quick-release detection tool and pipeline airtightness detection device, including tool main body, first joint part and second joint part are equipped on tool main body, the first joint part is used to insert into the pipeline to be detected and be connected, the second joint part is used to be connected with outside air path, gas passage that is communicated front and back is equipped in the tool main body, gas passage both ends are located respectively on the first joint part and second joint part;Pushing part is equipped on the first joint part, flexible sealing member and pressure piece are successively set on the tool main body in pushing part side;Rotary handle is further rotationally equipped on the tool main body, one end of rotary handle is equipped with cam portion and the pressure piece is resisted;Through rotary handle and the form of flexible sealing member, only need user to insert the first joint part of the detection tool in the utility model into the pipeline to be detected and rotate the rotary handle, the installation of detection tool can be realized.

Description

Technical Field

[0001] This utility model belongs to the technical field of testing devices, specifically referring to a quick-release testing tool and device for testing the airtightness of pipelines. Background Technology

[0002] Referring to the gas stove airtightness leak detection system and method disclosed in Chinese Invention Patent 2017109154507, the system includes an airtightness detector for connecting to the gas inlet connector of the gas pipeline of the gas stove to be tested, which is connected to a pressure tank and a gas source through a gas pipe; a sealing component for blocking the gas outlet hole of the nozzle; and an airtightness testing fixture hole, which is opened on the nozzle seat of the gas stove for installing the sealing component. The system can be tested by connecting the airtightness detector to the gas inlet connector and inserting the sealing component into the airtightness testing fixture hole to block the gas outlet hole.

[0003] The air tightness tester and the air inlet connector are generally connected by threaded fasteners, which requires users to spend a certain amount of time assembling and using the air tightness tester, thus affecting work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-release testing fixture and device for pipeline airtightness that effectively increases efficiency.

[0005] The purpose of this utility model is achieved as follows:

[0006] Quick-release testing tool for pipeline airtightness.

[0007] The fixture includes a main body with a first connector and a second connector. The first connector is used to be inserted into and connected to the pipeline to be tested, and the second connector is used to be connected to an external gas path. The fixture body has a gas channel that is open at both ends, with the two ends of the gas channel located on the first connector and the second connector, respectively. The first connector has a pushing part, and a flexible sealing element and a pressing element are sequentially fitted on the fixture body on one side of the pushing part.

[0008] The tooling body is also rotatably equipped with a rotating handle. One end of the rotating handle is provided with a cam portion that abuts against the pressing member. The cam portion has a first abutting surface near the center of the cam portion and a second abutting surface away from the center of the cam portion. When the first connector portion is located in the pipeline to be tested, the rotating handle is rotated to make the second abutting surface on the cam portion press against the pressing member, thereby driving the tooling body to slide and squeeze the flexible seal located between the pressing member and the pushing part. Alternatively, the rotating handle is rotated to make the first abutting surface on the cam portion press against the pressing member, thereby releasing the squeezed flexible seal.

[0009] Furthermore, the tooling body is provided with a rotating seat, and there are empty parts on both sides of the rotating seat. The rotating handle is provided with two rotating arms located on the empty parts and rotatably connected to the rotating seat. The rotating arms are provided with the cam part.

[0010] Furthermore, the tooling body also includes a vent pipe, the rotating seat is detachably fixed to the vent pipe, and the vent pipe is provided with the gas passage.

[0011] Furthermore, the vent pipe is provided with a threaded portion, and the rotating seat is provided with a threaded hole, which is used to fix the device to the outside of the vent pipe through the threaded portion and the threaded hole.

[0012] Furthermore, the pressure-blocking component includes a pressure-blocking gasket fitted outside the vent pipe.

[0013] Furthermore, the bottom of the flexible seal is provided with a second protrusion, which is used to abut against the end face of the pipeline to be tested after the first connector is inserted into the pipeline to be tested.

[0014] Furthermore, the pressing component includes a sliding sleeve disposed outside the tooling body, the sliding sleeve having a sliding hole, the second connector extending outward from the sliding hole, the tooling body having an adapter end passing through the sliding sleeve, the adapter end being rotatably connected to the rotating handle, for pressing the sliding sleeve against the flexible seal when the rotating handle is rotated.

[0015] Furthermore, an arc-shaped transition surface is provided between the first abutting surface and the second abutting surface.

[0016] The pipeline airtightness testing device adopts the aforementioned quick-release pipeline airtightness testing fixture.

[0017] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0018] In this patent, by using a rotating handle and a flexible sealing element, the user only needs to insert the first connector of the testing fixture into the pipeline to be tested and then rotate the rotating handle to install the testing fixture, which greatly speeds up the installation of the testing fixture and increases the efficiency of airtightness testing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a pipeline airtightness testing device.

[0020] Figure 2 This is a schematic diagram of the structure of Example 1.

[0021] Figure 3 This is a cross-sectional schematic diagram of the pipeline to be tested connected in Example 1.

[0022] Figure 4 This is a schematic diagram of the structure after the handle is rotated in Example 1.

[0023] Figure 5 This is a schematic diagram of the cross-section after the handle is rotated in Example 1.

[0024] Figure 6 This is an exploded schematic diagram of Example 1.

[0025] Figure 7 This is a schematic diagram of the structure of Example 2.

[0026] Figure 8 This is a cross-sectional schematic diagram of Example 2.

[0027] Figure 9 This is an explosion diagram of Example 2.

[0028] The meaning of the labels in the diagram:

[0029] 1. Fixture body; 11. Gas passage; 12. Rotating seat; 121. Hollow part; 122. Threaded hole; 13. Vent pipe; 131. Threaded part; 14. Pressing part; 15. Adapter end;

[0030] 2. First connector; 21. Pushing part; 22. Flexible seal; 221. Second boss;

[0031] 3. Second joint section;

[0032] 4. Rotate handle; 41. Cam part; 42. First abutment surface; 43. Second abutment surface; 44. Rotating arm; 45. Holding part; 46. Rotating shaft; 47. Transition surface;

[0033] 51. Sliding hole;

[0034] 6. The pipeline to be tested; Detailed Implementation

[0035] The present invention will be further described below with reference to specific embodiments:

[0036] Example 1:

[0037] A quick-release testing fixture for pipeline air tightness is used in a pipeline air tightness testing device. It includes a fixture body 1, on which a first connector 2 and a second connector 3 are provided. The first connector 2 is used to be inserted into and connected to the pipeline 6 to be tested, and the second connector 3 is used to be connected to an external gas path. A gas channel 11 with front and rear conduction is provided in the fixture body 1, with the two ends of the gas channel 11 located on the first connector 2 and the second connector 3, respectively.

[0038] like Figure 2 , 3As shown in Figure 6, the tooling body 1 in this embodiment consists of two parts, including a vent pipe 13, which is hollow and has a gas channel 11 formed inside. A rotating seat 12 is provided outside the vent pipe 13. The rotating seat 12 is flat and round, and can be detachably fixed to the vent pipe 13. In this embodiment, the vent pipe 13 has a threaded portion 131, and the rotating seat 12 has a threaded hole 122, which is used to fix it to the outside of the vent pipe 13 through the threaded portion 131 and the threaded hole 122. At this time, the upper end of the vent pipe 13 is the first connector 2, and the lower end of the vent pipe 13 is the second connector 3.

[0039] The first connector 2 is provided with a pushing part 21, and a flexible sealing element 22 is fitted under the pushing part 21, such as... Figure 2 , 6 As shown, the pushing part 21 is a first boss integrally formed on the top of the vent pipe 13. The pushing part 21 is circular. The flexible sealing member 22 is a cylindrical structure made of rubber or silicone material, which is fitted below the pushing part 21, and its top abuts against the lower side of the pushing part 21.

[0040] The tooling body 1 is also provided with a rotating handle 4. One end of the rotating handle 4 is provided with a cam part 41. The cam part 41 has a first abutting surface 42 and a second abutting surface 43. When the first connector part 2 is located in the pipeline to be tested 6, the rotating handle 4 is rotated to make the second abutting surface 43 on the cam part 41 press against the pressing member 14, thereby driving the tooling body 1 to slide and squeeze the flexible sealing member 22 located between the pressing member 14 and the pushing part 21.

[0041] Combination Figure 1-3As shown in Figure 6, the rotating handle 4 has a gripping part 45 for user operation. Two rotating arms 44 are provided on the left and right sides of the end of the gripping part 45. The rotating arms 44 are plate-shaped, and a rotating shaft 46 is provided on the inner side of the rotating arm 44. Correspondingly, there are empty parts 121 on both sides of the rotating seat 12. The two rotating arms 44 are respectively located on the empty parts 121 on both sides of the rotating seat 12 and are connected to the rotating seat 12 through the rotating shaft 46 on the inner side of the rotating arm 44. With the rotating shaft 46 as the center, a cam portion 41 is formed at one end of the rotating arm 44. The cam portion 41 has a first abutting surface 42 near the center of the cam portion 41 and a second abutting surface 43 away from the center of the cam portion 41. When the first connector portion 2 is located in the pipeline to be tested 6, the second abutting surface 43 on the cam portion 41 is pressed against the pressing member 14 by rotating the rotating handle 4, thereby driving the tooling body 1 to slide and squeeze the flexible sealing member 22 located between the pressing member 14 and the pushing part 21, or the first abutting surface 42 on the cam portion 41 is pressed against the pressing member 14 by rotating the rotating handle 4, thereby releasing the squeezed flexible sealing member 22.

[0042] The pressure-resistant component 14 is specifically a pressure-resistant pad that is slidably fitted onto the vent pipe 13 and is movably disposed therein. During operation, it combines with... Figure 3-5 As shown, the user inserts the first connector 2 into the pipeline 6 to be tested, and positions the flexible seal 22 therein. At this time, the first abutment surface 42 on the rotating handle 4 presses against the pressing member 14. In fact, there is an arc-shaped transition surface 47 between the first abutment surface 42 and the second abutment surface 43. When sealing is required, the user rotates the rotating handle 4, causing the transition surface 47 on the cam part 41 to slide into contact with the pressing member 14, ultimately causing the second abutment surface 43 to press against the pressing member 14. During rotation, the second abutment surface 43 presses against the flexible seal 22, and drives the rotating seat 12 to slide away from the flexible seal 22. The movement of the rotating seat 12 synchronously drives the pushing part 21 on the tooling body 1 to move, thereby squeezing the flexible sealing part 22 located between the pushing part 21 and the pressing part 14. As a result, the flexible sealing part 22 expands outward to fill the pipeline 6 to be tested and achieves a seal. At this time, the rotating handle 4 is kept in the state of pressing the flexible sealing part 22 against the second abutting surface 43, and the air tightness of the pipeline can be tested. The user can connect the external air passage to the tooling body 1 through the thread located on the second connector part 3. The gas from the external air passage will enter the pipeline 6 to be tested through the gas channel 11 in the tooling body 1. The air tightness of the pipeline is tested by observing the air pressure in the pipeline 6 to be tested.

[0043] After the test is completed, the user rotates the rotating handle 4 in the opposite direction, so that the first abutting surface 42 on the rotating handle 4 presses against the flexible seal 22 again, thereby relieving the compression of the flexible seal 22 located between the pushing part 21 and the rotating handle 4, and thus removing the testing fixture in this patent.

[0044] In summary, this patent utilizes the rotating handle 4 and flexible sealing element 22 to allow users to easily install the testing fixture by simply inserting the first connector 2 of the testing fixture into the pipeline 6 to be tested and then rotating the rotating handle 4. This significantly speeds up the installation process, increases the efficiency of airtightness testing, and reduces the labor intensity of workers.

[0045] Furthermore, the bottom of the flexible seal 22 is provided with a second protrusion 221. For example... Figure 3 The flexible seal 22 is formed with the second protrusion 221 during its manufacturing process, making the flexible seal 22 as a whole "T" shape. The second protrusion 221 is used to abut against the end face of the pipeline 6 after the first connector 2 is inserted into the pipeline 6 to be tested, thereby increasing the sealing between the end face of the pipeline and the testing fixture, so as to better perform airtightness testing and effectively prevent the pressure member 14 from contacting and wearing the pipeline 6 to be tested.

[0046] Example 2:

[0047] This embodiment is largely the same as embodiment 1, except that the tooling body 1 in this patent does not have the rotating seat 12, and the pressing member 14 includes a sliding sleeve disposed outside the tooling body 1. See details. Figure 7-9 The sliding sleeve 5 is fitted onto the vent pipe 13. A sliding hole 51 is provided on one side of the sliding sleeve 5. At this time, the second connector 3 intersects the first connector 2 at a 90-degree angle, and an adapter end 15 is provided at the end opposite to the first connector 2. The adapter end 15 passes through the sliding sleeve 5 and is connected to the rotating handle 4. By rotating the rotating handle 4, the second abutment surface 43 on the rotating handle 4 abuts against the sliding sleeve 5, and the sliding sleeve 5 compresses the flexible sealing element 22 to achieve a seal. This structure changes the connection position of the second connector 3, which can be used to adapt to different working environments for users to choose freely.

[0048] Example 3:

[0049] Most of the structures in this embodiment are the same as those in Embodiment 1. The difference is that the rotating seat 12 and the vent pipe 13 are integrally formed as a whole.

[0050] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

[0051] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0052] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0053] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

Claims

1. A quick-release testing fixture for pipeline airtightness, characterized in that: The fixture includes a main body (1), on which a first connector (2) and a second connector (3) are provided. The first connector (2) is used to be inserted into the pipeline (6) to be tested and connected thereto. The second connector (3) is used to be connected to the external gas path. A gas channel (11) with front and rear conduction is provided in the fixture body (1). The two ends of the gas channel (11) are located on the first connector (2) and the second connector (3) respectively. A pushing part (21) is provided on the first connector (2). A flexible sealing element (22) and a pressing element (14) are sequentially fitted on the fixture body (1) on one side of the pushing part (21). The tooling body (1) is also rotatably provided with a rotating handle (4). One end of the rotating handle (4) is provided with a cam part (41) that abuts against the pressing member (14). The cam part (41) has a first abutting surface (42) near the center of the cam part (41) and a second abutting surface (43) away from the center of the cam part (41). When the first connector part (2) is located in the pipeline to be tested (6), the second abutting surface (43) on the cam part (41) is pressed against the pressing member (14) by rotating the rotating handle (4), thereby driving the tooling body (1) to slide and squeeze the flexible sealing member (22) located between the pressing member (14) and the pushing part (21), or the first abutting surface (42) on the cam part (41) is pressed against the pressing member (14) by rotating the rotating handle (4), thereby releasing the squeezed flexible sealing member (22).

2. The quick-release testing fixture for pipeline airtightness according to claim 1, characterized in that: The tooling body (1) is provided with a rotating seat (12), and the rotating seat (12) has a hollow part (121) on both sides. The rotating handle (4) is provided with two rotating arms (44) located on the hollow part (121) and rotatably connected to the rotating seat (12). The rotating arm (44) is provided with the cam part (41).

3. The quick-release testing fixture for pipeline airtightness according to claim 2, characterized in that: The tooling body (1) also includes a vent pipe (13), the rotating seat (12) is detachably fixed on the vent pipe (13), and the vent pipe (13) is provided with the gas channel (11).

4. The quick-release testing fixture for pipeline airtightness according to claim 3, characterized in that: The vent pipe (13) is provided with a threaded part (131) on the outside, and the rotating seat (12) is provided with a threaded hole (122) for fixing the device to the outside of the vent pipe (13) through the threaded part (131) and the threaded hole (122).

5. The quick-release testing fixture for pipeline airtightness according to claim 3, characterized in that: The pressure-retaining component (14) includes a pressure-retaining gasket fitted outside the vent pipe (13).

6. The quick-release testing fixture for pipeline airtightness according to claim 1, characterized in that: The bottom of the flexible seal (22) is provided with a second boss (221), which is used to abut against the end face of the pipeline (6) to be tested after the first connector (2) is inserted into the pipeline (6) to be tested.

7. The quick-release testing fixture for pipeline airtightness according to claim 1, characterized in that: The pressing member (14) includes a sliding sleeve disposed outside the tooling body (1), the sliding sleeve having a sliding hole (51), the second joint (3) extending outward from the sliding hole (51), the tooling body (1) having an adapter end (15) passing through the sliding sleeve, the adapter end (15) being rotatably connected to the rotating handle (4), used to press the sliding sleeve to press the flexible seal (22) when the rotating handle (4) is rotated.

8. The quick-release testing fixture for pipeline airtightness according to claim 1, characterized in that: An arc-shaped transition surface (47) is provided between the first abutting surface (42) and the second abutting surface (43).

9. The quick-release testing fixture for pipeline airtightness according to claim 1, characterized in that: The pushing part (21) includes a first boss integrally formed on the tooling body (1).

10. A pipeline airtightness testing device, characterized in that: The quick-release testing tool for pipeline airtightness as described in any one of claims 1-9 is used.

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