CN212206495U - A device for testing the sealing performance of pipe fittings - Google Patents

Abstract

The utility model provides a device for detecting the sealing performance of a pipe fitting, comprising a first sealing plate, a second sealing plate, a pipe to be tested, a hollow cylinder, a first pressing device, a second pressing device and an inflating device; The sealing plate and the second sealing plate respectively extend into the two ends of the pipe to be tested and are sealedly connected with the pipe to be tested, the first sealing plate is arranged on the inner wall of the cylinder, and the first sealing plate is fixedly connected with the movable end of the first pressing device; The second pressing device is fixedly connected with the second sealing plate; the second sealing plate is further provided with a second through hole, and the second through hole is respectively communicated with the inflator and the inside of the pipe to be tested. The utility model seals both ends of the pipe to be tested by the first sealing plate and the second sealing plate, injects water into the cylinder through the water injection port, and inflates the pipe to be tested from the air inlet pipe to test the sealing performance and is easy to operate. The cylinder can be rotated relative to the ground, which is convenient for taking and placing pipes to be tested with larger lengths or diameters.

Description

A device for testing the sealing performance of pipe fittings

technical field

The utility model relates to the field of pipeline engineering component detection, in particular to a key sealing performance detection device.

Background technique

Pipe fittings are the general term for piping parts used for connection, control, and diversion in the piping system. They are widely used in irrigation, water supply and drainage, municipal engineering, petrochemical and construction fields. The air tightness of the pipe fittings is an important factor to measure the quality of the pipe fittings. In order to ensure the reliability of the pipeline system, it is necessary to carry out the air tightness detection of the pipe fittings. However, the size of the pipe fittings varies greatly, and the manual inspection workload is very large, which brings a lot of inconvenience to the inspection operation.

Utility model content

In view of this, the utility model proposes a pipe fitting sealing performance detection device with wide adaptability and reliable detection results.

The technical scheme of the utility model is achieved as follows: a device for detecting the sealing performance of a pipe fitting, comprising a first sealing plate (1), a second sealing plate (2) and a pipe to be tested (3); the first sealing plate (1) and the second sealing plate (2) are respectively abutted against the end faces of the two ends of the pipe to be tested (3); it also includes a hollow cylinder (4), a first pressing device (5), and a second pressing device (6) and the inflator (7), the cylinder (4) is arranged on the ground; the first sealing plate (1) is arranged in the cylinder (4), the first sealing plate (1) and the inner part of the cylinder (4) close to the ground The surfaces of the cylinder body (4) are provided with a first through hole (41) at the bottom, and the first pressing device (5) passes through the first through hole (41) and is fixedly connected with the first sealing plate (1); The second pressing device (6) is fixedly arranged on the end of the cylinder (4) away from the ground; the second pressing device (6) is fixedly connected with the second sealing plate (2); the pipe to be tested (3) is located on the first sealing plate (1) in the cylinder (4) between the second sealing plate (2); the first sealing plate (1) and the second sealing plate (2) are both sealed and connected to the pipe to be tested (3); the inflation The device (7) fills the interior of the pipe to be tested (3) with gas.

On the basis of the above technical solutions, preferably, the second pressing device (6) includes a base (61) and a linear motion unit (62), the base (61) is straddling the cylinder (4), and the base ( 61) A linear motion unit (62) is arranged on the top, and the linear motion unit (62) is fixedly connected with the base (61); the base (61) is provided with a third through hole (63), and the movable end of the linear motion unit (62) It penetrates through the third through hole (63) and is fixedly connected with the second sealing plate (2).

Further preferably, the linear motion unit (62) is a hydraulic cylinder, an air cylinder or an electric push rod.

Further preferably, the inflator (7) comprises an air source (71), a pressure reducing valve (72) and an air intake pipe (73), an air source (71), a pressure reducing valve (72) and an air intake pipe (73) Connected in sequence, the air source (71) and the pressure reducing valve (72) are fixedly arranged on the base (61); the second sealing plate (2) is provided with a second passage that penetrates along the axial direction of the pipe to be tested (3). The hole (21), the output end of the intake pipe (73) is communicated with the inside of the pipe to be tested (3) through the second through hole (21).

On the basis of the above technical solutions, preferably, one end of the first sealing plate (1) away from the ground is provided with a first boss (11), and the first boss (11) extends into the pipe to be tested (3) It is sealed with the pipe to be tested (3); the first boss (11) is detachably connected with the first sealing plate (1).

Further preferably, the second sealing plate (2) is provided with a second boss (22), and the second boss (22) extends into the pipe to be measured (3) and is sealedly connected to the pipe to be tested (3). ; The second boss (22) is detachably connected with the second sealing plate (2).

Further preferably, sealing gaskets (31) are also provided between the first boss (11) and the second boss (22) and the end faces of the two ends of the pipe to be tested (3), and the sealing pads (31) surround the first boss (31). A boss (11) or a second boss (22) is provided; the sealing gasket (31) is abutted against the end faces at both ends of the pipe to be tested (3).

Further preferably, the cylinder (4) is rotatably arranged relative to the ground.

More preferably, the cylinder body (4) is also provided with a water injection port (42) and a water outlet (43), and the water injection port (42) is arranged on the side wall of the cylinder body (4) and is arranged inside the cylinder body (4). In communication with the water source, the water outlet (43) is fixedly arranged at the bottom of the cylinder (4).

On the basis of the above technical solutions, preferably, a plurality of light strips (8) and a controller (9) are also included, and the light strips (8) are symmetrically arranged on the inner wall of the cylinder (4); the first pressing device (5) , The second pressing device (6), the inflation device (7) and the light strip (8) are all electrically connected with the controller (9).

Compared with the prior art, the device for detecting the sealing performance of a pipe fitting provided by the utility model has the following beneficial effects:

(1) The utility model seals the two ends of the pipe to be measured by the first sealing plate and the second sealing plate, injects water into the cylinder, and inflates the pipe to be measured from the air inlet pipe to detect the sealing performance, and the operation is simple and convenient;

(2) The second pressing device makes the two ends of the pipe to be tested close to the first sealing plate and the second sealing plate by linear motion, so as to realize the waterproof sealing effect;

(3) The inflation device fills the gas with a certain pressure into the pipe to be tested and keeps it for a period of time. By observing whether there are air bubbles on the surface of the pipe to be tested, it can be judged whether there is leakage;

(4) The sealing gasket can improve the sealing effect between the first boss and the second boss and the end face of the pipe to be tested;

(5) The cylinder body can be rotated relative to the ground, which is convenient for the pick, place and installation of large diameter or long length pipes to be tested;

(6) The lighting effect of the light strip is conducive to a more intuitive observation by the inspector.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a front view of a device for detecting the sealing performance of a pipe fitting according to the present invention;

Fig. 2 is the half-section front view of Fig. 1;

FIG. 3 is a top view of FIG. 1 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIG. 1 in conjunction with FIG. 2 and FIG. 3 , the present invention provides a device for detecting the sealing performance of a pipe fitting, including a first sealing plate 1 , a second sealing plate 2 , a pipe to be tested 3 , a hollow cylinder 4 , a first sealing plate 1 , a A pressing device 5, a second pressing device 6 and an inflation device 7; the cylinder body 4 is arranged on the ground; the first sealing plate 1 is arranged in the cylinder body 4, and the first sealing plate 1 and the inner end of the cylinder body 4 close to the ground The surfaces are against each other; the bottom of the cylinder body 4 is provided with a first through hole 41, the first pressing device 5 passes through the first through hole 41 and is fixedly connected with the first sealing plate 1; the second pressing device 6 is fixedly arranged on the cylinder body 4. One end away from the ground; the second pressing device 6 is fixedly connected with the second sealing plate 2; 1 and the second sealing plate 2 are respectively against both ends of the pipe to be tested 3, the first sealing plate 1 and the second sealing plate 2 are both sealed and connected to the pipe to be tested 3; The inflator 7 is filled into the pipe to be tested 3 gas.

As can be seen from the figure, the first sealing plate 1, the second sealing plate 2 and the pipe to be tested 3 form a closed air, and the inflator 7 is continuously inflated to the interior of the pipe to be tested 3, and the cylinder 4 can be filled with water, and then observe Whether there are air bubbles on the surface of the pipe fitting 3 to be tested can judge the pressure bearing capacity and airtight performance of the pipe fitting 3 to be tested.

As shown in FIG. 2 , the second pressing device 6 includes a base 61 and a linear motion unit 62 , the base 61 is arranged across the cylinder 4 , a linear motion unit 62 is provided on the top of the base 61 , and the linear motion unit 62 is fixedly connected to the base 61 The base 61 is provided with a third through hole 63, and the movable end of the linear motion unit 62 penetrates the third through hole 63 and is fixedly connected with the second sealing plate 2. During operation, the pipe to be tested 3 is placed vertically in the cylinder 4, and the end of the pipe to be tested 3 close to the ground is sealed with the first sealing plate 1; 3 moves in the axial direction, driving the second sealing plate 2 to seal the connection with the end of the pipe to be tested 3 away from the ground, so as to facilitate subsequent inflation and water-passing tests.

In the present invention, both the first pressing device 5 and the linear motion unit 62 may be hydraulic cylinders, air cylinders or electric push rods. The difference is that the first pressing device 5 is usually in an initial position, and the linear motion unit 62 is in an extended state when it is working.

As shown in FIG. 2 , the inflator 7 of the present invention includes an air source 71 , a pressure reducing valve 72 and an air intake pipe 73 , the air source 71 , the pressure reducing valve 72 and the air intake pipe 73 are connected in sequence, and the air source 71 and the pressure reducing valve 72 are connected in sequence. are fixedly arranged on the base 61 ; the second sealing plate 2 is provided with a second through hole 21 penetrating along the axial direction of the pipe to be tested 3 , and the output end of the intake pipe 73 passes through the second through hole 21 and the inside of the pipe to be tested 3 . Connected. In order to reduce the pressure, the inflator 7 can use the pressure reducing valve 72 to decompress and then inflate the inside of the pipe to be measured 3 .

As a further improvement of the present invention, one end of the first sealing plate 1 away from the ground is provided with a first boss 11, the first boss 11 extends into the pipe to be tested 3 and is sealedly connected with the pipe to be tested 3; 11 is detachably connected to the first sealing plate 1 . The second sealing plate 2 is provided with a second boss 22 , the second boss 22 extends into the tube to be tested 3 and is sealedly connected to the tube to be tested 3 ; the second boss 22 is detachably connected to the second sealing plate 2 . Both the first boss 11 and the second boss 22 are detachable structures, which can be adapted to the pipes 3 to be tested with different diameters.

Sealing pads 31 are also arranged between the first boss 11 and the second boss 22 and the end faces of the two ends of the pipe to be tested 3. The sealing pads 31 are arranged around the first boss 11 or the second boss 22; The end faces at both ends of the measuring tube piece 3 abut against each other. The sealing gasket 31 can further improve the sealing effect.

The cylinder body 4 of the present invention is rotatably arranged relative to the ground. That is, the bottom of the cylinder body 4 is hingedly connected to the ground, and can be rotated in the range of 0-90°, which further simplifies the installation of the pipe to be tested 3 . When the cylinder body 4 is rotated until its axis is parallel to the ground, the pipe to be tested 3 can be easily installed and disassembled in the cylinder body 4 . The first pressing device 5 is extended at this time, and the pipe to be tested can be discharged.

The cylinder body 4 is also provided with a water injection port 42 and a drain port 43 .

In order to facilitate the observation of the sealing situation, the utility model also includes a plurality of light strips 8 and a controller 9, and the light strips 8 are symmetrically arranged on the inner wall of the cylinder 4; the first pressing device 5, the second pressing device 6, the inflation device 7 and the The light strips 8 are all electrically connected to the controller 9 .

In order to further facilitate observation, a number of transparent observation windows can be provided on the side wall of the cylinder body 4 .

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the within the scope of protection of the present invention.

Claims (10)

1. A pipe fitting sealing performance detection device comprises a first sealing plate (1), a second sealing plate (2) and a pipe fitting (3) to be detected; first shrouding (1) and second shrouding (2) are held with the terminal surface counterbalance at the both ends of awaiting measuring pipe fitting (3) respectively, its characterized in that: the device also comprises a hollow cylinder body (4), a first pressing device (5), a second pressing device (6) and an inflating device (7), wherein the cylinder body (4) is arranged on the ground; the first sealing plate (1) is arranged in the cylinder body (4), and the first sealing plate (1) is propped against the inner surface of one end, close to the ground, of the cylinder body (4); a first through hole (41) is formed in the bottom of the cylinder body (4), and the first pressing device (5) penetrates through the first through hole (41) and is fixedly connected with the first sealing plate (1); the second pressing device (6) is fixedly arranged at one end of the cylinder body (4) far away from the ground; the second pressing device (6) is fixedly connected with the second sealing plate (2); the pipe fitting (3) to be tested is positioned in the cylinder (4) between the first sealing plate (1) and the second sealing plate (2), and the first sealing plate (1) and the second sealing plate (2) are hermetically connected with the pipe fitting (3) to be tested; and the inflation device (7) inflates gas into the pipe fitting (3) to be tested.

2. A pipe sealing performance detecting apparatus according to claim 1, wherein: the second pressing device (6) comprises a base (61) and a linear motion unit (62), the base (61) is arranged on the barrel (4) in a crossing mode, the linear motion unit (62) is arranged on the top of the base (61), and the linear motion unit (62) is fixedly connected with the base (61); the base (61) is provided with a third through hole (63), and the movable end of the linear motion unit (62) penetrates through the third through hole (63) and is fixedly connected with the second sealing plate (2).

3. A pipe sealing performance detecting apparatus according to claim 2, wherein: the linear motion unit (62) is a hydraulic cylinder, an air cylinder or an electric push rod.

4. A pipe sealing performance detecting apparatus according to claim 2, wherein: the air charging device (7) comprises an air source (71), a pressure reducing valve (72) and an air inlet pipe (73), the air source (71), the pressure reducing valve (72) and the air inlet pipe (73) are communicated in sequence, and the air source (71) and the pressure reducing valve (72) are fixedly arranged on the base (61); the second sealing plate (2) is provided with a second through hole (21) which penetrates through along the axial direction of the pipe fitting (3) to be tested, and the output end of the air inlet pipe (73) is communicated with the interior of the pipe fitting (3) to be tested through the second through hole (21).

5. A pipe sealing performance detecting apparatus according to claim 1, wherein: a first boss (11) is arranged at one end, far away from the ground, of the first sealing plate (1), and the first boss (11) extends into the pipe fitting (3) to be tested and is in sealing connection with the pipe fitting (3) to be tested; the first boss (11) is detachably connected with the first sealing plate (1).

6. The pipe sealing performance detecting apparatus according to claim 5, wherein: a second boss (22) is arranged on the second sealing plate (2), and the second boss (22) extends into the pipe fitting (3) to be tested and is connected with the pipe fitting (3) to be tested in a sealing manner; the second boss (22) is detachably connected with the second sealing plate (2).

7. A pipe sealing performance detecting apparatus according to claim 6, wherein: sealing gaskets (31) are further arranged between the first boss (11) and the second boss (22) and the end faces of the two ends of the pipe fitting (3) to be tested, and the sealing gaskets (31) are arranged around the first boss (11) or the second boss (22); the sealing gasket (31) is propped against the end faces of the two ends of the pipe fitting (3) to be tested.

8. A pipe sealing performance detecting apparatus according to claim 7, wherein: the cylinder body (4) is rotatably arranged relative to the ground.

9. A pipe sealing performance detecting apparatus according to claim 8, wherein: the water injection device is characterized in that a water injection port (42) and a water outlet (43) are further arranged on the barrel body (4), the water injection port (42) is arranged on the side wall of the barrel body (4) and communicates the interior of the barrel body (4) with a water source, and the water outlet (43) is fixedly arranged at the bottom of the barrel body (4).

10. A pipe sealing performance detecting apparatus according to claim 1, wherein: the lamp belt type cleaning device is characterized by further comprising a plurality of lamp belts (8) and a controller (9), wherein the lamp belts (8) are arranged along the axial direction of the barrel body (4), and the lamp belts (8) are symmetrically distributed on the inner wall of the barrel body (4); the first pressing device (5), the second pressing device (6), the inflating device (7) and the lamp strip (8) are all electrically connected with the controller (9).

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