CN216770952U

CN216770952U - Pipe fitting thread sealing detection device

Info

Publication number: CN216770952U
Application number: CN202122816259.1U
Authority: CN
Inventors: 刘青德; 翟广普; 林雄芝; 邵男男; 刘广
Original assignee: Shenzhen Houde Detection Technology Co ltd
Current assignee: Shenzhen Houde Detection Technology Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-06-17
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the technical field of pipe fitting performance detection equipment manufacturing, in particular to a pipe fitting thread sealing detection device which comprises a left fixing seat and a right fixing seat which are oppositely arranged, positioning screw rods are respectively arranged at the upper parts and the lower parts of the left fixing seat and the right fixing seat in a penetrating mode, a pipe body supporting frame is arranged between the left fixing seat and the right fixing seat and is respectively connected with the two positioning screw rods in a sliding mode, a first pipe orifice sealing head is detachably connected to the left fixing seat, a water and gas inlet pipe is arranged in the centers of the first pipe orifice sealing head and the left fixing seat in a penetrating mode, an air cylinder is arranged on the right fixing seat, a piston rod of the air cylinder horizontally extends out and is connected with a second pipe orifice sealing head, and a water and gas outlet pipe is arranged in the center of the second pipe orifice sealing head in a penetrating mode. Compared with the prior art, the device has a reasonable structure, can detect the tightness of the threaded connection part of the pipe fitting through various detection modes, detects the tightness of the thread of the pipe fitting through testing the pressure change of the inner cavity by the pressure detection device, has high detection efficiency, and improves the application range and the practicability of the detection equipment.

Description

Pipe fitting thread sealing detection device

Technical Field

The utility model relates to the technical field of pipe fitting performance detection equipment manufacturing, in particular to a pipe fitting thread sealing detection device.

Background

Pipelines for transporting gas or liquid need to withstand a certain pressure from the gas or liquid in the pipeline. To avoid gas or liquid leakage during transportation, it is often necessary to test the tightness of the threads of the joints of the pipes or to test the tightness of the repaired joints of the repaired pipes after the pipes are joined.

The existing air tightness test conditions for the pipe fittings are as follows: (1) a water test was used. The traditional hydraulic test method for the internal expansion type plug is time-consuming and labor-consuming, low in work efficiency, poor in visual inspection effect and low in detection result accuracy, defects which penetrate through the pipe wall but are very compact are difficult to find, and detection blind areas inevitably exist at the end parts of the pipes due to inherent defects of the internal expansion type detection structure. (2) Air leakage detector. Each worker corresponds to a simple air leakage detector, the two ends of the pipe fitting to be tested are connected manually or by using some fixed dies, then the worker observes the numerical value on the air leakage detector, and the numerical value is qualified within a specified range. However, the detection level is relatively backward, the sensitivity of the detection equipment is low, the professional quality of detection personnel is insufficient, meanwhile, a blind zone exists in the eddy current type detection test, and the detection result is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a device for detecting thread sealing of a pipe.

The technical scheme adopted by the utility model is as follows: pipe fitting thread seal detection device, the key lies in: including just being equipped with left fixing base and right fixing base, positioning screw is all worn to be equipped with by the upper portion and the lower part of left side fixing base and right fixing base, be equipped with the body support frame between left side fixing base and the right fixing base, the body support frame all with two positioning screw sliding connection, can dismantle on the fixing base of a left side and be connected with first mouth of pipe shutoff head, first mouth of pipe shutoff head with the pipe is advanced to the water gas is worn to be equipped with in the center of left side fixing base, be equipped with the cylinder on the fixing base of the right side, the piston rod level of cylinder stretches out and is connected with second mouth of pipe shutoff head, the aqueous vapor exit tube is worn to be equipped with in second mouth of pipe shutoff head center. The effect of this scheme is that can form confined space after the both ends of awaiting measuring pipe fitting are sealed through first mouth of pipe shutoff head and second mouth of pipe shutoff head, can let in high-pressure gas or water carry out the test of pipe fitting gas tightness in confined space according to the condition to more accurate judgement pipe fitting thread sealing nature.

Preferably, the pipe body support frame comprises two positioning blocks arranged in parallel, the upper parts of the positioning blocks are V-shaped grooves, and the lower parts of the positioning blocks are in sliding connection with the positioning screws. The effect of this scheme can be used for two sections bodys of bearing threaded connection.

Preferably, the first pipe orifice plugging head comprises a first circular disc body and a first annular limiting ring, a screw rod is fixedly arranged on the outer side surface of the first circular disc body, the screw rod penetrates out of the left fixing seat in threaded connection with a locking nut, the inner side surface of the first circular disc body is fixedly connected with the first annular limiting ring, and the two ends of the water gas inlet pipe penetrate out of the first circular disc body and the left fixing seat respectively. The effect of this scheme can conveniently dismantle and install to prevent that first mouth of pipe shutoff head and body from taking place relative movement.

Preferably, the second pipe orifice plugging head comprises a second circular disc body and a second annular limiting ring, a concave seat is fixedly arranged on the outer side face of the second circular disc body, the convex surface of the concave seat is fixedly connected with the piston rod of the air cylinder, and the two ends of the water-air outlet pipe penetrate out of the first circular disc body and the concave surface of the concave seat respectively. The effect of this scheme can conveniently dismantle and install to prevent that second mouth of pipe shutoff head and body from taking place relative movement.

Preferably, the aqueous vapor advances the pipe and includes intake pipe and inlet tube, the pipe wall of intake pipe and inlet tube all with first circular disk body sealing connection. The effect of this scheme can make intake pipe and inlet tube connect water source and air supply respectively to make water route and gas circuit separately controlled.

Preferably, the first pipe orifice plugging head is provided with a pressure detection device. The effect of this scheme is can realize that the gas tightness detects through the atmospheric pressure value of monitoring bellows inner chamber, has improved application scope and practicality.

Has the advantages that: compared with the prior art, the pipe fitting thread sealing detection device provided by the utility model is reasonable in structure and simple to operate, meanwhile, the thread connection part of the pipe fitting is subjected to tightness detection through multiple detection modes, the pressure change of the inner cavity is tested through the pressure detection device to detect the thread tightness of the pipe fitting, the detection efficiency is high, the purpose that the pipe fitting is not immersed into a water tank is achieved, the air tightness detection is achieved, and the application range and the practicability of detection equipment are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic structural view of the first nozzle blocking head;

fig. 4 is a schematic structural view of the second nozzle blocking head.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1, the pipe thread sealing detection device includes a left fixing seat 1 and a right fixing seat 2, positioning screws 3 are respectively inserted into the upper portion and the lower portion of the left fixing seat 1 and the right fixing seat 2, a pipe support frame 4 is arranged between the left fixing seat 1 and the right fixing seat 2, the pipe support frame 4 is slidably connected with the two positioning screws 3, a plurality of positioning nuts 31 are threadedly connected onto the positioning screws 3, the positioning nuts are used for preventing the left fixing seat 1, the right fixing seat 2 and the positioning screws 3 from moving relative to each other, a first pipe orifice sealing head 5 is detachably connected onto the left fixing seat 1, a water inlet pipe 6 is inserted into the centers of the first pipe orifice sealing head 5 and the left fixing seat 1, the water inlet pipe 6 includes an air inlet pipe 61 and an air inlet pipe 62, and the pipe walls of the air inlet pipe 61 and the air inlet pipe 62 are hermetically connected with the first pipe orifice sealing head 5, the right fixing seat 2 is provided with a cylinder 7, a piston rod of the cylinder 7 horizontally extends out to be connected with a second pipe orifice blocking head 8, a water vapor outlet pipe 9 penetrates through the center of the second pipe orifice blocking head 8, and the pipe wall of the air inlet pipe 61 is in sealing connection with the second pipe orifice blocking head 8.

Example 2

As shown in fig. 1, the pipe thread sealing detection device comprises a left fixing seat 1 and a right fixing seat 2, wherein the left fixing seat 1 and the right fixing seat 2 are provided with a positioning screw 3 on the upper portion and the lower portion, a pipe support frame 4 is arranged between the left fixing seat 1 and the right fixing seat 2, the pipe support frame 4 is slidably connected with the two positioning screws 3, the positioning screw 3 is in threaded connection with a plurality of positioning nuts 31, the positioning nuts 31 are used for preventing the left fixing seat 1, the right fixing seat 2 and the positioning screws 3 from moving relative to each other, the left fixing seat 1 is detachably connected with a first pipe orifice sealing head 5, the first pipe orifice sealing head 5 is provided with a through hole, a pressure detection device 10 is arranged in the through hole, the pressure detection device 10 is a pressure gauge, and a water inlet pipe 6 is arranged in the centers of the first pipe orifice sealing head 5 and the left fixing seat 1, the right fixed seat 2 is provided with an air cylinder 7, a piston rod of the air cylinder 7 horizontally extends out and is connected with a second pipe orifice sealing head 8, and a water vapor outlet pipe 9 penetrates through the center of the second pipe orifice sealing head 8;

the pipe body support frame 4 comprises two positioning blocks arranged in parallel, the upper parts of the positioning blocks are V-shaped grooves, and the lower parts of the positioning blocks are in sliding connection with the positioning screw rods 3.

The first pipe orifice sealing head 5 comprises a first circular disc body 51 and a first annular limiting ring 52, a screw 53 is fixedly arranged on the outer side surface of the first circular disc body 51, the screw 53 penetrates out of the left fixing seat 1 and is in threaded connection with a locking nut 54, the inner side surface of the first circular disc body 51 is fixedly connected with the first annular limiting ring 52, two ends of the water and air inlet pipe 6 respectively penetrate out of the first circular disc body 51 and the left fixing seat 1, the water and air inlet pipe 6 comprises an air inlet pipe 61 and an water inlet pipe 62, and the pipe walls of the air inlet pipe 61 and the water inlet pipe 62 are in sealing connection with the first pipe orifice sealing head 5;

the second mouth of pipe shutoff head 8 includes the circular disk body 81 of second and second annular spacing collar 82, the circular disk body 81 medial surface fixed connection of second annular spacing collar 82, the fixed concave seat 83 that is equipped with of the circular disk body 81 lateral surface of second, the convex surface of concave seat 83 with the piston rod fixed connection of cylinder 7, wear out respectively at the both ends of aqueous vapor exit tube 9 first circular disk body 51 with the concave surface of concave seat 83, the pipe wall and the second mouth of pipe shutoff head 8 sealing connection of aqueous vapor exit tube 9, intake pipe 61, inlet tube 62 with all be equipped with the governing valve on the aqueous vapor exit tube 9.

The working principle is as follows: place the body an that will wait to detect on the body support frame, then remove the left pipe orifice department to the body with left fixing base, fastening set nut, prevent that left fixing base and positioning screw from taking place relative movement, remove the right pipe orifice department to the body with right fixing base again, fastening set nut, prevent that right fixing base and positioning screw from taking place relative movement, the actuating cylinder, drive second mouth of pipe shutoff head removes to the right mouth of pipe of body, both ends up first mouth of pipe shutoff head and second mouth of pipe shutoff head are sealed with the body respectively, form airtight space in the body, pour into gas and water into in proper order in the airtight space, carry out gas leakage test and water pressure test, whether take place gas leakage or leak water and manometer numerical value through observing threaded connection portion, thereby whether the detectable connects into pipe fitting thread sealing nature is good.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. Pipe fitting thread sealing detection device, its characterized in that: including just being equipped with left fixing base (1) and right fixing base (2), positioning screw (3) are all worn to be equipped with to the upper portion and the lower part of left side fixing base (1) and right fixing base (2), be equipped with body support frame (4) between left side fixing base (1) and right fixing base (2), body support frame (4) all with two positioning screw (3) sliding connection, can dismantle on left side fixing base (1) and be connected with first mouth of pipe shutoff head (5), first mouth of pipe shutoff head (5) with the aqueous vapor advances pipe (6) is worn to be equipped with in the center of left side fixing base (1), be equipped with cylinder (7) on right side fixing base (2), the piston rod level of cylinder (7) is stretched out and is connected with second mouth of pipe shutoff head (8), aqueous vapor exit tube (9) are worn to be equipped with in second mouth of pipe shutoff head (8) center.

2. The tubular member thread seal detection device of claim 1, wherein: the pipe body support frame (4) comprises two positioning blocks which are arranged in parallel, the upper portions of the positioning blocks are V-shaped grooves, and the lower portions of the positioning blocks are connected with the positioning screw rods (3) in a sliding mode.

3. The tubular member thread seal detection device of claim 1, wherein: first mouth of pipe shutoff head (5) are including first circular disk body (51) and first annular spacing collar (52), first circular disk body (51) lateral surface is fixed and is equipped with screw rod (53), screw rod (53) are worn out left side fixing base (1) threaded connection has lock nut (54), first circular disk body (51) medial surface fixed connection first annular spacing collar (52), the both ends that the aqueous vapor advances pipe (6) are worn out respectively first circular disk body (51) with left side fixing base (1).

4. The tubular thread seal detection device of claim 3, wherein: the second pipe orifice blocking head (8) comprises a second circular disc body (81) and a second annular limiting ring (82), a concave seat (83) is fixedly arranged on the outer side face of the second circular disc body (81), the convex face of the concave seat (83) is fixedly connected with the piston rod of the cylinder (7), and the two ends of the water-gas outlet pipe (9) penetrate out of the concave face of the concave seat (83) and the first circular disc body (51) respectively.

5. The tubular thread seal detection device of claim 3, wherein: the water vapor inlet pipe (6) comprises an air inlet pipe (61) and an water inlet pipe (62), and the pipe walls of the air inlet pipe (61) and the water inlet pipe (62) are connected with the first circular disc body (51) in a sealing mode.

6. The tubular member thread seal detection device of claim 1, wherein: and a pressure detection device (10) is arranged on the first pipe orifice blocking head (5).