CN210638859U

CN210638859U - Negative pressure testing machine for leak-proof detection of pipe joint

Info

Publication number: CN210638859U
Application number: CN201921653957.0U
Authority: CN
Inventors: 周昱杰
Original assignee: Desaff Measurement Technology (jiangsu) Co Ltd
Current assignee: Desaff Measurement Technology (jiangsu) Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-05-29
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a tubular product quality testing equipment field discloses a negative pressure test machine that tubular product junction leak protection detected usefulness, including lower casing, the front surface lower extreme of casing rotates down and is connected with the maintenance cabinet door, the side surface bottom of casing is provided with power socket down, the test basin has been seted up in the embedding of the upper surface intermediate position of casing down, the last surface border position fixed mounting of casing has the supporting shoe down, the upper end fixed mounting of supporting shoe has last casing, the side surface of going up the casing is provided with the heat dissipation window, the lower fixed mounting of going up the casing has detection device, the inside of going up the casing is provided with the air pump. The utility model discloses a set up the test basin and carry out the leak protection test to tubular product, avoided carrying out the step of measuring to the atmospheric pressure in the tubular product, simultaneously, whether direct observation pressurization tubular product emits the bubble in the test basin and just can carry out the leak protection and detect, compares the method that utilizes the atmospheric pressure to detect, and the testing result is more directly perceived and the cost is lower.

Description

Negative pressure testing machine for leak-proof detection of pipe joint

Technical Field

The utility model relates to a tubular product quality testing equipment technical field specifically is a negative pressure test machine that tubular product junction leak protection detected usefulness.

Background

At present, in the production process of plastic pipes, the quality of the pipes is generally detected by manually observing whether the pipes have defects such as cracks, sand holes and the like, the omission is difficult to avoid only depending on visual observation, the detection precision and the efficiency are low, the long-time repeated single work is easy to reduce the detection efficiency and the detection quality due to the visual fatigue of workers, and the labor cost is high.

Chinese patent discloses a tubular product leak protection detection device (No. CN206348119U), and this patent technique can replace the manual work to carry out the leak protection to pipeline hookup location and detect, has improved detection efficiency, but this utility model air pressure step is difficult to be realized in the test tube, and is difficult to operate, in addition, does not set up sealing device and guarantees skill clamp plate and tubular product sealing connection for the testing result precision is lower. Therefore, those skilled in the art have provided a negative pressure testing machine for leak-proof detection of pipe joints to solve the above problems in the background art.

Disclosure of Invention

An object of the utility model is to provide a negative pressure test machine that tubular product junction leak protection detected usefulness to solve the difficult realization of this utility model that proposes in the above-mentioned background art at the interior gas pressure step of test tube, difficult operation, in addition, do not set up sealing device and guarantee skill clamp plate and tubular product sealing connection, make the lower problem of testing result precision.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a negative pressure test machine that tubular product junction leak protection detected usefulness, includes casing down, the front surface lower extreme of casing rotates through the hinge and is connected with the maintenance cabinet door down, the side surface bottom of casing is provided with power socket down, the test basin has been seted up in the embedding of the upper surface intermediate position of casing down, the last surface border position fixed mounting of casing has the supporting shoe down, the upper end fixed mounting of supporting shoe has last casing, the side surface of going up the casing is provided with the heat dissipation window, the front surface inclined plane position of going up the casing is provided with control button, the front surface bottom of going up the casing is provided with the display screen, the lower fixed surface of going up the casing installs detection device, the inside of going up the casing is provided with the.

As a further aspect of the present invention: the detection device comprises an installation connecting plate fixedly installed at the middle position of the lower surface of the upper shell, the edge position of the upper surface of the installation connecting plate is rectangular and is provided with four threaded holes, a telescopic rod is fixedly installed at the middle position of the lower surface of the installation connecting plate, a connecting flange is fixedly installed at the lower end of the telescopic rod, a gas injection pipe is fixedly installed at the lower end of the connecting flange, a pipe to be detected is fixedly connected to the lower end of the gas injection pipe, and a sealing plug is arranged at the lower end of the pipe to be.

As a further aspect of the present invention: the bottom of the test water tank is provided with a water outlet, and the upper end of the side wall of the inner surface of the test water tank is provided with a water inlet.

As a further aspect of the present invention: and a sealing ring is arranged between the gas injection pipe and the pipe to be detected.

As a further aspect of the present invention: the upper surface of the mounting connecting plate is provided with an air hose in a penetrating way at a position close to the threaded hole, the lower end of the air hose is fixedly connected to the side surface of the air injection pipe, and the upper end of the air hose penetrates through the lower wall of the upper shell and is fixedly mounted at one end of the air pump.

As a further aspect of the present invention: the lower surface edge position of casing is four gyro wheels of rectangular distribution installation down, pass through bolted connection's mode fixed connection between gyro wheel and the casing down.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the test basin and carry out the leak protection test to the pressurization tubular product, avoided the step of measuring the atmospheric pressure in the tubular product, reduced the operation degree of difficulty, simultaneously, whether direct observation pressurization tubular product emits the bubble in the test basin can carry out the leak protection and detect, compare the method that utilizes atmospheric pressure to detect, the testing result is more directly perceived and the cost is lower; the utility model discloses a set up the sealing washer between gas injection pipe and the tubular product that awaits measuring, set up the sealing plug in the tubular product bottom that awaits measuring, fine assurance the leakproofness of the tubular product that awaits measuring, improved the detection precision; the utility model discloses a set up the heat dissipation window for the heat that the air pump during operation produced can in time be given off, has avoided the heat accumulation to lead to the inside high temperature of device, influences the normal work of device.

Drawings

FIG. 1 is a schematic structural view of a negative pressure testing machine for leak detection of a pipe joint;

FIG. 2 is a schematic view of the internal structure of a negative pressure testing machine for leak-proof detection of a pipe joint;

FIG. 3 is a schematic structural diagram of a detection device in a negative pressure testing machine for leak-proof detection of a pipe joint.

In the figure: 1. a lower housing; 2. overhauling the cabinet door; 3. a detection device; 4. a display screen; 5. a control button; 6. an upper housing; 7. a heat dissipation window; 8. a support block; 9. a power outlet; 10. a roller; 11. an air pump; 12. testing the water tank; 13. a gas hose; 14. a threaded hole; 15. mounting a connecting plate; 16. a telescopic rod; 17. a connecting flange; 18. a sealing plug; 19. a pipe to be tested; 20. and a gas injection pipe.

Detailed Description

Please refer to fig. 1-3, in the embodiment of the present invention, a negative pressure testing machine for leak-proof detection of pipe joints, including lower casing 1, the lower front surface lower extreme of lower casing 1 is connected with maintenance cabinet door 2 through hinge rotation, the side surface bottom of lower casing 1 is provided with power socket 9, lower casing 1's upper surface intermediate position embedding has been seted up test basin 12, lower casing 1's upper surface border position fixed mounting has supporting shoe 8, the upper end fixed mounting of supporting shoe 8 has last casing 6, the side surface of going up casing 6 is provided with heat dissipation window 7, the front surface inclined plane position of going up casing 6 is provided with control button 5, the front surface bottom of going up casing 6 is provided with display screen 4, the lower fixed surface of going up casing 6 installs detection device 3, the inside of going up casing 6 is provided with air pump 11.

In fig. 3: detection device 3 includes the erection joint board 15 of fixed mounting in the 6 lower surface intermediate positions of last casing, erection joint board 15's upper surface border position is the rectangular distribution and has seted up four screw holes 14, erection joint board 15's lower surface intermediate position fixed mounting has telescopic link 16, the lower extreme fixed mounting of telescopic link 16 has flange 17, flange 17's lower extreme fixed mounting has gas injection pipe 20, gas injection pipe 20's lower extreme fixedly connected with tubular product 19 that awaits measuring, the lower extreme of tubular product 19 that awaits measuring is provided with sealing plug 18, thereby can treat the tubular product that detects and carry out leak protection detection.

In fig. 2: the bottom of the test water tank 12 is provided with a water outlet, and the upper end of the side wall of the inner surface of the test water tank 12 is provided with a water inlet, so that the water body in the test water tank 12 can be conveniently replaced, and the cleanness of the water body is ensured.

In fig. 3: a sealing ring is arranged between the gas injection pipe 20 and the pipe 19 to be detected, so that the sealing connection between the gas injection pipe 20 and the pipe 19 to be detected can be ensured, and the detection precision is improved.

In fig. 3: the upper surface of the mounting connection plate 15 is provided with an air hose 13 at a position close to the threaded hole 14, the lower end of the air hose 13 is fixedly connected to the side surface of the air injection pipe 20, and the upper end of the air hose 13 penetrates through the lower wall of the upper shell 6 and is fixedly arranged at one end of the air pump 11, so that the pipe can be inflated and pressurized.

In fig. 1: the lower surface border position of casing 1 is four gyro wheels 10 are installed in the rectangle distribution down, through bolted connection's mode fixed connection between gyro wheel 10 and the casing 1 down to can improve negative pressure test machine's mobility.

The utility model discloses a theory of operation is: when the utility model is used, firstly, the pipe 19 to be tested is hermetically connected with the gas injection pipe 20, the bottom end of the pipe 19 to be tested is provided with the sealing plug 18, after the pipe 19 to be tested is installed, the air pump 11 is opened through the control button 5, the air pump 11 works and inflates and pressurizes the inside of the pipe 19 to be tested through the gas hose 13, after the pressurization is completed, the control button 5 is operated again to lower the telescopic rod 16, the pipe 19 to be tested is immersed into the test water tank 12, whether bubbles are emitted or not is observed to perform leak-proof detection, after the detection is completed, the pipe is taken out to complete the operation, the utility model carries out leak-proof test on the pipe 19 to be tested by arranging the test water tank 12, avoids the step of measuring the air pressure in the pipe, reduces the operation difficulty, and simultaneously, the leak-proof detection can be performed by directly observing whether the, compare the method that utilizes atmospheric pressure to detect, the testing result is more directly perceived and the cost is lower, the utility model discloses a set up the sealing washer between gas injection pipe 20 and the tubular product 19 that awaits measuring, set up sealing plug 18 in the tubular product bottom that awaits measuring, fine assurance tubular product 19 that awaits measuring's leakproofness has improved the detection precision.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A negative pressure testing machine for leak-proof detection of a pipe joint comprises a lower shell (1) and is characterized in that the lower end of the front surface of the lower shell (1) is rotatably connected with an overhaul cabinet door (2) through a hinge, a power socket (9) is arranged at the bottom end of the side surface of the lower shell (1), a testing water tank (12) is embedded in the middle position of the upper surface of the lower shell (1), a supporting block (8) is fixedly arranged at the edge position of the upper surface of the lower shell (1), an upper shell (6) is fixedly arranged at the upper end of the supporting block (8), a heat dissipation window (7) is arranged on the side surface of the upper shell (6), a control button (5) is arranged at the inclined plane position of the front surface of the upper shell (6), a display screen (4) is arranged at the bottom end of the front surface of the upper shell (6), and a detection device (3, an air pump (11) is arranged in the upper shell (6).

2. The negative pressure testing machine for leak-proof detection of a pipe joint according to claim 1, wherein the detection device (3) comprises a mounting connection plate (15) fixedly mounted at a middle position of a lower surface of the upper housing (6), four threaded holes (14) are formed in an edge position of an upper surface of the mounting connection plate (15) in a rectangular distribution manner, an expansion link (16) is fixedly mounted at a middle position of a lower surface of the mounting connection plate (15), a connection flange (17) is fixedly mounted at a lower end of the expansion link (16), a gas injection pipe (20) is fixedly mounted at a lower end of the connection flange (17), a pipe (19) to be detected is fixedly connected at a lower end of the gas injection pipe (20), and a sealing plug (18) is arranged at a lower end of the pipe (19) to.

3. The negative pressure testing machine for leak-proof detection of the pipe joint as claimed in claim 1, wherein the bottom of the testing water tank (12) is provided with a water outlet, and the upper end of the side wall of the inner surface of the testing water tank (12) is provided with a water inlet.

4. The negative pressure testing machine for leak-proof detection of the pipe joint as claimed in claim 2, wherein a sealing ring is arranged between the gas injection pipe (20) and the pipe (19) to be tested.

5. The negative pressure testing machine for leak-proof detection of the pipe joint according to claim 2, wherein an air hose (13) is installed through the upper surface of the mounting connection plate (15) at a position close to the threaded hole (14), the lower end of the air hose (13) is fixedly connected to the side surface of the air injection pipe (20), and the upper end of the air hose (13) penetrates through the lower wall of the upper shell (6) and is fixedly installed at one end of the air pump (11).

6. The negative pressure testing machine for leak-proof detection of the joint of the pipe material according to claim 1, wherein four rollers (10) are arranged at the edge of the lower surface of the lower shell (1) in a rectangular distribution, and the rollers (10) are fixedly connected with the lower shell (1) in a bolt connection manner.