A pipeline connection device for air tightness testing

Abstract

This utility model discloses a pipe connection device for airtightness testing, including an air pump, a pressure gauge, and a connection mechanism. The connection mechanism includes a first slide rail, a base, a sliding plate, a first clamping motor, and a first threaded rod. The air pump is disposed on one side of the base. The sliding plate is slidably connected to the base via the first slide rail. The first clamping motor controls the sliding plate to slide on the base. A detection limiting plate is disposed on the side of the base near the air pump. The air pump is connected to the detection limiting plate via a pipe. A first clamping plate and a second clamping plate are disposed above the sliding plate. The first clamping plate is fixedly connected to the side of the sliding plate away from the air pump. The second clamping plates are symmetrically disposed on both sides of the sliding plate. Second clamping motors are symmetrically disposed on both sides of the sliding plate, and the second clamping motors control the sliding of the second clamping plates. This application, by setting the first clamping motor and the second clamping motor in conjunction with the sliding plate and the second clamping plate, can perform airtightness testing on various pipes.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to a pipe connection device for airtightness testing. Background Technology

[0002] Pipeline airtightness testing is a crucial step in industrial processes to verify the sealing performance of pipeline systems. It involves applying positive or negative pressure to the inside of the pipeline and monitoring pressure changes to determine the presence of leaks. Traditional testing devices often employ a rail-type clamping structure, where moving clamps tightly seal both ends of the pipeline, and an air pump is used to establish the test pressure environment for inflation or vacuuming. This design is highly efficient for straight pipe testing and can easily collect data on pressure decay or leakage rates, providing a fundamental guarantee for safe pipeline operation. However, the application scope of traditional clamp-rail structures is significantly limited. Since the clamps can only seal the first and last ends of the pipeline in a straight line, they cannot effectively seal non-straight fittings such as tees, making effective testing difficult. If branch pipe openings are sealed manually using plugs or other structures, the sealing condition may be compromised, leading to testing errors. Therefore, the field of airtightness testing technology needs to develop a pipeline connection device capable of reliably performing various pipeline airtightness tests. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a pipe connection device for airtightness testing, and the main technical problem to be solved is how to reliably perform airtightness testing on various pipes.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0005] A pipe connection device for airtightness testing includes an air pump, a pressure gauge, and a connection mechanism. The connection mechanism includes a first slide rail, a base, a sliding plate, a first clamping motor, and a first threaded rod. The air pump is disposed on one side of the base. The sliding plate is slidably connected to the base via the first slide rail. The first clamping motor can control the sliding plate to slide on the base. A detection limiting plate is disposed on the side of the base near the air pump. The air pump is connected to the detection limiting plate via a pipe. A first clamping plate and a second clamping plate are disposed above the sliding plate. The first clamping plate is fixedly connected to the side of the sliding plate away from the air pump. The second clamping plates are symmetrically disposed on both sides of the sliding plate and are slidably connected to the sliding plate via a second slide rail. Second clamping motors are symmetrically disposed on both sides of the sliding plate and can control the second clamping plates to slide on the second slide rail.

[0006] Preferably, the first clamping plate is provided with a first connecting seat, which is detachably connected to the first clamping plate; the second clamping plate is provided with a second connecting seat, which is detachably connected to the second clamping plate; the detection limiting plate is provided with a detection connecting seat, which has a through hole in the middle; and the air pump is connected to the through hole through a pipe.

[0007] Preferably, the first connecting seat, the second connecting seat, and the detection connecting seat all include a sealing ring, a limiting ring, and a limiting plug. The limiting ring is disposed outside the limiting plug, and the sealing ring is disposed between the limiting ring and the limiting plug.

[0008] Preferably, the second connecting seat is further provided with a limiting arc plate, which is fixedly connected to the side of the limiting ring away from the air pump.

[0009] Preferably, connecting plates are symmetrically arranged at both ends of the sliding plate, the sliding plate is fixedly connected to the connecting plates, and third slide rails are arranged at both ends of the base, the connecting plates being slidably connected to the base through the third slide rails.

[0010] Preferably, the first slide rail, the second slide rail, and the third slide rail are all configured as T-shaped structures. A first T-shaped slider that cooperates with the first slide rail is fixedly connected below the sliding plate. A second T-shaped slider that cooperates with the first slide rail is fixedly connected below the second clamping plate. A third T-shaped slider that cooperates with the third slide rail is fixedly connected to the side of the connecting plate.

[0011] Preferably, the first clamping motor is connected to the first T-shaped slider via a first threaded rod. The first T-shaped slider has a threaded hole in the middle that mates with the first threaded rod. One end of the first threaded rod is fixedly connected to the rotating shaft of the first clamping motor, and the section of the first threaded rod away from the first clamping motor is rotatably connected to the base.

[0012] Preferably, the second clamping motor is connected to the second T-shaped slider via a second threaded rod. The second T-shaped slider has a threaded hole in the middle that mates with the second threaded rod. One end of the second threaded rod is fixedly connected to the rotating shaft of the second clamping motor, and the section of the second threaded rod away from the second clamping motor is rotatably connected to the middle of the sliding plate.

[0013] The beneficial effects of this utility model are as follows: By setting a connecting mechanism, the first threaded rod can be rotated by the first clamping motor. The first threaded rod passes through the sliding plate and is threadedly connected to the bottom of the sliding plate. The rotation of the first threaded rod can drive the sliding plate to slide on the first slide rail. The first clamping plate above the first sliding plate, in conjunction with the detection limiting plate, clamps and seals both sides of the straight pipe. The second clamping motor drives the second clamping plate to move in the same way as the first clamping motor. When it is necessary to perform an airtightness test on a common T-shaped tee pipe, the first clamping motor controls the sliding plate to move laterally, and in conjunction with the second clamping motor controlling the second clamping plate to move longitudinally, so that the three openings of the tee pipe are clamped and sealed, thereby enabling the air pump to reliably perform the test.

[0014] In summary, this application, by setting up a first clamping motor, a second clamping motor, a sliding plate, and a second clamping plate, is able to perform airtightness testing on various pipelines. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a pipe connection device for airtightness testing according to an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the right side structure of a pipe connection device for airtightness testing in an embodiment of this application;

[0017] Figure 3 This is a cross-sectional view of the sliding plate in an embodiment of this application;

[0018] Figure 4 This is a cross-sectional view of the second connecting seat in an embodiment of this application;

[0019] Explanation of reference numerals in the attached diagram: 1. Air pump; 2. Pressure gauge; 3. Connecting mechanism; 4. Exhaust valve; 5. Pipeline;

[0020] 301. First slide rail; 302. Base; 303. Sliding plate; 304. First clamping motor; 305. First threaded rod; 306. First clamping plate; 307. Second clamping plate; 308. Second slide rail; 309. Second clamping motor; 310. First connecting seat; 311. Second connecting seat; 312. Detection connecting seat; 313. Through hole; 314. Sealing ring; 315. Limiting ring; 316. Limiting plug; 317. Limiting arc plate; 318. Connecting plate; 319. Third slide rail; 320. First T-shaped slider; 321. Second T-shaped slider; 322. Third T-shaped slider; 323. First threaded hole; 324. Second threaded hole; 325. Second threaded rod. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0022] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Example 1

[0024] See attached document Figure 1-2This application provides a pipe connection device for airtightness testing, including an air pump 1, an air pressure gauge 2, and a connection mechanism 3. The connection mechanism 3 includes a first slide rail 301, a base 302, a sliding plate 303, a first clamping motor 304, and a first threaded rod 305. The air pump 1 is disposed on one side of the base 302. The sliding plate 303 is slidably connected to the base 302 via the first slide rail 301. The first clamping motor 304 can control the sliding plate 303 to slide on the base 302. A detection limiting plate is provided on the side of the base 302 near the air pump 1. The air pump 1 is connected to the pipe... The track 5 is connected to the detection limiting plate. A first clamping plate 306 and a second clamping plate 307 are provided above the sliding plate 303. The first clamping plate 306 is fixedly connected to the side of the sliding plate 303 away from the air pump 1. The second clamping plate 307 is symmetrically arranged on both sides of the sliding plate 303. The second clamping plate 307 and the sliding plate 303 are slidably connected through a second slide rail 308. A second clamping motor 309 is symmetrically arranged on both sides of the sliding plate 303. The second clamping motor 309 can control the second clamping plate 307 to slide on the second slide rail 308. This device connects an air pump 1 to a detection limit plate. The air pump 1 pressurizes the inside of the pipe 5 and then allows it to stand. The pressure gauge 2 is observed to change over time to determine the airtightness of the pipe 5. After the test is completed, the gas in the pipe 5 is discharged through the exhaust valve 4. This application also includes a connecting mechanism 3, which allows the first clamping motor 304 to drive the first threaded rod 305 to rotate. The first threaded rod 305 passes through the sliding plate 303 and is threaded to the bottom of the sliding plate 303. The rotation of the first threaded rod 305 can drive the sliding plate 303 to slide on the first slide rail 301. The first clamping plate 306 above the first sliding plate 303 works in conjunction with the detection limit plate to clamp and seal both sides of the straight pipe 5. The second clamping motor 309, in the same manner as the first clamping motor 304, uses the second threaded rod 325 to drive the second clamping plate 307 to move. When an airtightness test is required on a common T-shaped tee pipe 5, the first clamping motor 304 controls the sliding plate 303 to move laterally, and cooperates with the second clamping motor 309 to control the second clamping plate 307 to move longitudinally, so that the three openings of the tee pipe 5 are clamped and blocked, thereby enabling the air pump 1 to reliably perform the test. In summary, by setting the first clamping motor 304, the second clamping motor 309 in conjunction with the sliding plate 303 and the second clamping plate 307, this application can perform airtightness tests on various types of pipes 5.

[0025] Specifically, the first clamping plate 306 is provided with a first connecting seat 310, which is detachably connected to the first clamping plate 306. The second clamping plate 307 is provided with a second connecting seat 311, which is detachably connected to the second clamping plate 307. The detection limiting plate is provided with a detection connecting seat 312, and the detection connecting seat 312 has a through hole 313 in the middle. The air pump 1 is connected to the through hole 313 through a pipe 5. By providing the first connecting seat 310, the second connecting seat 311, the third connecting seat, and the detection connecting seat 312, this device can assist in clamping the pipe 5 and improve the reliability of airtightness detection. Meanwhile, in this embodiment, both the first connecting seat 310 and the second connecting seat 311 of this device are detachable structures and are connected and fixed by bolts. When it is necessary to perform airtightness testing on common L-shaped bends, the operator can also remove the first connecting seat 310 and the second connecting seat 311 on one side, and install sponge or rubber pads at the corresponding positions by bolts, leaving only the second connecting seat 311 on one side to clamp and seal the L-shaped bend, thereby performing airtightness testing on the L-shaped bend.

[0026] Example 2

[0027] See attached document Figure 1-4 The difference between this embodiment and Embodiment 1 is that the first connecting seat 310, the second connecting seat 311, and the detection connecting seat 312 all include a sealing ring 314, a limiting ring 315, and a limiting plug 316. The limiting ring 315 is disposed outside the limiting plug 316, and the sealing ring 314 is disposed between the limiting ring 315 and the limiting plug 316. In this embodiment, the sealing ring 314 is a sheet-like annular structure made of rubber, and the limiting plug 316 is a frustum structure with the diameter of its lower end being the same as the inner diameter of the detection pipe 5. By setting the sealing ring 314, the limiting ring 315, and the limiting plug 316, this device can improve the sealing effect and use the limiting plug 316 and the limiting ring 315 to provide a certain obstruction to the pipe 5, thus assisting in sealing.

[0028] Specifically, the second connecting seat 311 is also provided with a limiting arc plate 317, which is fixedly connected to the side of the limiting ring 315 away from the air pump 1. By setting the limiting arc plate 317, this device can improve the limiting effect on one side of the tee or bend, thereby improving the reliability of the device.

[0029] Specifically, connecting plates 318 are symmetrically arranged at both ends of the sliding plate 303, and the sliding plate 303 is fixedly connected to the connecting plates 318. Third slide rails 319 are provided at both ends of the base 302, and the connecting plates 318 are slidably connected to the base 302 via the third slide rails 319. By providing the third slide rails 319, this device makes the movement of the sliding plate 303 smoother and more reliable. Furthermore, in this embodiment, both the second clamping motor 309 and the first clamping motor 304 are powered by power lines. By providing the third slide rails 319, the risk of damage from power line entanglement is reduced compared to structures such as chains or gears.

[0030] Specifically, the first slide rail 301, the second slide rail 308, and the third slide rail 319 are all configured with a T-shaped structure. A first T-shaped slider 320 that mates with the first slide rail 301 is fixedly connected below the sliding plate 303. A second T-shaped slider 321 that mates with the first slide rail 301 is fixedly connected below the second clamping plate 307. A third T-shaped slider 322 that mates with the third slide rail 319 is fixedly connected to the side of the connecting plate 318. This device, by setting the T-shaped structure, makes the sliding of the sliding plate 303, the first clamping plate 306, and the connecting plate 318 more reliable.

[0031] Specifically, the first clamping motor 304 is connected to the first T-shaped slider 320 via a first threaded rod 305. The first T-shaped slider 320 has a threaded hole in the middle that mates with the first threaded rod 305. One end of the first threaded rod 305 is fixedly connected to the rotating shaft of the first clamping motor 304, and the part of the first threaded rod 305 away from the first clamping motor 304 is rotatably connected to the base 302, making the process of the first clamping motor 304 driving the sliding plate 303 to move more reliable.

[0032] Specifically, the second clamping motor 309 is connected to the second T-shaped slider 321 via the second threaded rod 325. The second T-shaped slider 321 has a threaded hole in the middle that mates with the second threaded rod 325. One end of the second threaded rod 325 is fixedly connected to the rotating shaft of the second clamping motor 309, and the section of the second threaded rod 325 away from the second clamping motor 309 is rotatably connected to the middle of the sliding plate 303. Two of each of the second clamping motor 309, the second clamping plate 307, the second slide rail 308, and the second threaded rod 325 are provided and symmetrically arranged on both sides of the sliding plate 303, making the process of the second clamping motor 309 driving the second clamping plate 307 to move more reliable.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A pipe (5) connection device for airtightness testing, comprising an air pump (1), an air pressure gauge (2), and a connection mechanism (3), characterized in that, The connecting mechanism (3) includes a first slide rail (301), a base (302), a sliding plate (303), a first clamping motor (304), and a first threaded rod (305). The air pump (1) is located on one side of the base (302). The sliding plate (303) is slidably connected to the base (302) via the first slide rail (301). The first clamping motor (304) can control the sliding plate (303) to slide on the base (302). A detection limiting plate is provided on the side of the base (302) near the air pump (1). The air pump (1) is connected to the detection limiting plate via a pipe (5). (303) is provided with a first clamping plate (306) and a second clamping plate (307) on the top. The first clamping plate (306) is fixedly connected to the side of the sliding plate (303) away from the air pump (1). The second clamping plate (307) is symmetrically arranged on both sides of the sliding plate (303). The second clamping plate (307) and the sliding plate (303) are slidably connected through a second slide rail (308). The sliding plate (303) is symmetrically provided with a second clamping motor (309) on both sides. The second clamping motor (309) can control the second clamping plate (307) to slide on the second slide rail (308).

2. The pipe (5) connection device for airtightness testing according to claim 1, characterized in that, The first clamping plate (306) is provided with a first connecting seat (310), which is detachably connected to the first clamping plate (306). The second clamping plate (307) is provided with a second connecting seat (311), which is detachably connected to the second clamping plate (307). The detection limiting plate is provided with a detection connecting seat (312), which has a through hole (313) in the middle. The air pump (1) is connected to the through hole (313) through a pipe (5).

3. The pipe (5) connection device for airtightness testing according to claim 2, characterized in that, The first connecting seat (310), the second connecting seat (311) and the detection connecting seat (312) all include a sealing ring (314), a limiting ring (315) and a limiting plug (316). The limiting ring (315) is disposed outside the limiting plug (316), and the sealing ring (314) is disposed between the limiting ring (315) and the limiting plug (316).

4. The pipe (5) connection device for airtightness testing according to claim 3, characterized in that, The second connecting seat (311) is also provided with a limiting arc plate (317), which is fixedly connected to the side of the limiting ring (315) away from the air pump (1).

5. The pipe (5) connection device for airtightness testing according to claim 1, characterized in that, The sliding plate (303) has connecting plates (318) symmetrically arranged at both ends. The sliding plate (303) is fixedly connected to the connecting plates (318). The base (302) has third slide rails (319) at both ends. The connecting plates (318) are slidably connected to the base (302) through the third slide rails (319).

6. The pipe (5) connection device for airtightness testing according to claim 5, characterized in that, The first slide rail (301), the second slide rail (308) and the third slide rail (319) are all configured as T-shaped structures. A first T-shaped slider (320) that cooperates with the first slide rail (301) is fixedly connected below the sliding plate (303). A second T-shaped slider (321) that cooperates with the first slide rail (301) is fixedly connected below the second clamping plate (307). A third T-shaped slider (322) that cooperates with the third slide rail (319) is fixedly connected to the side of the connecting plate (318).

7. The pipe (5) connection device for airtightness testing according to claim 6, characterized in that, The first clamping motor (304) is connected to the first T-shaped slider (320) via the first threaded rod (305). The first T-shaped slider (320) has a threaded hole in the middle that mates with the first threaded rod (305). One end of the first threaded rod (305) is fixedly connected to the rotating shaft of the first clamping motor (304). The section of the first threaded rod (305) away from the first clamping motor (304) is rotatably connected to the base (302).

8. The pipe (5) connection device for airtightness testing according to claim 7, characterized in that, The second clamping motor (309) is connected to the second T-shaped slider (321) via the second threaded rod (325). The second T-shaped slider (321) has a threaded hole in the middle that mates with the second threaded rod (325). One end of the second threaded rod (325) is fixedly connected to the rotating shaft of the second clamping motor (309). The section of the second threaded rod (325) away from the second clamping motor (309) is rotatably connected to the middle of the sliding plate (303).

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