CN211234879U

CN211234879U - Detector for detecting air tightness of pipeline

Info

Publication number: CN211234879U
Application number: CN202020057210.5U
Authority: CN
Inventors: 谢俊杰; 姜培军
Original assignee: Hangzhou Longju Synthetic Material Co ltd
Current assignee: Hangzhou Longju Synthetic Material Co ltd
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-08-11
Anticipated expiration: 2030-01-11

Abstract

The utility model relates to a detector for detecting the air tightness of a pipeline, which comprises a pipe plug, a force applying ring which is arranged along the circumferential direction of the inner wall of the pipe plug and is rotationally connected with the pipe plug, and a plurality of abutting blocks which are distributed along the circumferential direction of the force applying ring, wherein the pipe plug comprises a sealing section and a fixed section which are fixedly connected, the sealing section is in threaded connection with the inner wall of the pipeline, one side of the outer wall abutting against the inner wall of the pipeline of the sealing section is provided with a first sealing ring along the circumferential direction, the fixed section is abutted against the end surface of the pipeline and the outer wall, one side of the outer wall abutting against the pipeline of the fixed section is provided with a mounting groove for the force applying ring to be embedded along the circumferential direction, the outer wall of the fixed, and the butt piece is along application of force ring radial sliding connection in butt groove, and the exhaust tube and barometer are worn to be equipped with to the canned paragraph end fixing, and the exhaust tube is kept away from stopcock one end and is connected with the air pump. The utility model discloses the strong effect of stopcock leakproofness has.

Description

Detector for detecting air tightness of pipeline

Technical Field

The utility model belongs to the technical field of check out test set's technique and specifically relates to a detector for pipeline gas tightness detects is related to.

Background

In the polybutadiene latex synthesis process, a butadiene monomer, additives required by polymerization reaction, styrene and desalted water are added into a polymerization reaction kettle for polymerization reaction, and small-particle latex with the particle size of 80-120nm is polymerized; after the polymerization reaction is finished, vacuumizing a degassing tank, and then conveying the small-particle latex to the degassing tank for vacuum stripping through the pressure difference between the polymerization reaction kettle and the degassing tank; desalted water, additives required by agglomeration reaction and stripped small-particle latex are added into an agglomeration reaction kettle and agglomerated into polybutadiene latex with the particle size of 300-450 nm.

Chinese patent publication No. CN207515981U discloses a detector for detecting air tightness of a pipeline, which includes a barometer, a tube plug capable of sealing the pipeline, an exhaust tube penetrating through one of the tube plugs, a vacuum pump connected to one end of the exhaust tube opposite to the tube plug, and a sealing tape, wherein the barometer is installed on the exhaust tube, the two tube plugs are respectively embedded at two ends of the pipeline, and the sealing tape is wound outside the package and the pipeline. During detection, two pipe plugs are plugged to two ends of the pipeline to enable the pipeline to be in a sealed state; and then winding a sealing strip on the outside of the pipeline, enabling the sealing strip to be tightly pressed against the outer wall of the pipeline, vacuumizing the inside of the pipeline through a vacuum pump, and reading data on a barometer. Preferably, the sealing belt is detached from the outside of the pipeline, the data displayed by the barometer is observed, and if the data of the barometer is changed, the pipeline leaks; if the data on the barometer is not changed, the pipeline is not leaked, and the barometer can be normally used.

The above prior art solutions have the following drawbacks: the pipe plug is directly connected with the pipeline through threads, and when the pipeline is vacuumized or pressurized, the pipe plug can rotate due to huge pressure difference, so that the air tightness detection is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a detector that is used for pipeline gas tightness to detect of reinforcing gas tightness.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a detector for detecting the air tightness of a pipeline comprises a pipe plug, a force applying ring which is arranged along the circumferential direction of the inner wall of the pipe plug and is rotationally connected with the pipe plug, and a butting block which is arranged along the circumferential direction of the force applying ring and is slidably connected with the force applying ring, wherein the pipe plug comprises a sealing section and a fixing section which are fixedly connected, the sealing section is in threaded connection with the inner wall of the pipeline, a first sealing ring is arranged on one side, abutted against the inner wall of the pipeline, of the sealing section, along the circumferential direction, and a first sealing ring is arranged on one side, abutted against the end face and the outer wall of the pipeline, of the fixing section, along the circumferential direction, and is provided with a mounting groove for embedding the force applying ring, a plurality of force applying grooves communicated with the mounting groove are arranged on the outer wall of the fixing section along the circumferential direction, a plurality of butting grooves communicated with the inner wall of the fixing section are arranged on the inner wall of, the application of force ring is close to butt piece one end and sets up the wire casing of Archimedes spiral, each the butt piece is kept away from butt groove one side fixedly connected with lug, the lug inlays to be established in the wire casing and groove trend sliding connection along the line in the force ring, canned paragraph end fixing wears to be equipped with exhaust tube and barometer, the exhaust tube is kept away from stopcock one end and is connected with the air pump.

Through above-mentioned technical scheme, before detecting the gas tightness, support the pipe plug at the pipeline both ends, rotate and keep away from opening one end until the canned paragraph inner wall and support tight pipeline terminal surface, first sealing washer supports the pipeline inner wall, reaches preliminary fixed sealed effect. Apply tangential power to the application of force ring through the application of force groove, application of force ring rotates, drives sliding connection's butt piece with it and slides along the wire casing, because butt piece sliding connection in butt groove, consequently can only apply force ring's rotation thereupon, can only be close to the pipeline outer wall, until each butt piece supports tight pipeline outer wall, stopcock axial displacement is restricted, realizes that the secondary is fixed. The method secondarily limits the position of the pipe plug, reduces the possibility of rotation of the pipe plug under the action of external force, and simultaneously increases the air tightness of the pipeline.

The present invention may be further configured in a preferred embodiment as: and a second sealing ring is fixedly arranged on one side of the fixed section, which is abutted to the end surface of the pipeline.

Through above-mentioned technical scheme, when screwing up the stopcock, the pipeline terminal surface directly supports tightly the second sealing washer, completely cuts off inside air. Compared with the mode that the end face of the pipeline abuts against the inner wall of the fixed section, the air tightness inside the pipeline is improved, the performance of equipment is improved, and the detection result is more accurate.

The present invention may be further configured in a preferred embodiment as: the pipeline outer wall is fixedly provided with a limiting ring along the circumferential direction, and the butting block is abutted against the limiting ring and is far away from one side of the pipeline opening.

Through above-mentioned technical scheme, when rotating the application of force ring, the butt piece slides to pipeline one side, when sliding to butt piece butt pipeline outer wall, the butt piece is close to stopcock one side and supports the spacing ring, with stopcock axial spacing. After the abutting block abuts against the limiting ring, the pipe plug cannot be directly separated along the axial direction, and therefore the probability of separation of the pipe plug is reduced.

The present invention may be further configured in a preferred embodiment as: the spacing ring butt joint piece one side and butt joint piece butt spacing ring one side all are equipped with the fillet.

Through above-mentioned technical scheme, when stopcock and pipeline inner wall threaded connection are not inseparable very much, the horizontal distance of butt piece and spacing ring reduces, when butt piece is close to the pipeline, probably directly supports on the spacing ring. All set up the fillet in spacing ring and butt piece counterbalance one side, when butt piece butt spacing ring position squinted slightly, the drive butt piece continues downwards, because two fillets counterbalance, drives spacing hoop and keeps away from butt piece one side skew, and stopcock and pipeline open end butt are more inseparable.

The present invention may be further configured in a preferred embodiment as: and a rubber pad is fixedly arranged on one side of each abutting block close to the axis of the force application ring.

Through above-mentioned technical scheme, the direct butt pipeline outer wall of butt piece if relative slip takes place for butt piece and pipeline, can form the mar on the pipeline surface, and the butt piece also can be worn and torn in addition, influences fixed quality. The setting of rubber pad for on the inseparable basis of butt joint piece and pipeline outer wall butt, reduce wearing and tearing.

The present invention may be further configured in a preferred embodiment as: the mounting groove is kept away from butt groove one side and is seted up the spout of T shape along its circumference, spacing ring butt spout one side is along its circumference fixed slider that is equipped with, the slider inlays to be established in the spout, and slider sliding connection in spout.

Through above-mentioned technical scheme, the slider slides in the spout, and the spout forms annular orbit, therefore the spacing ring can only rotate along the spacing ring axle center. Although both ends of the limiting ring are limited, axial displacement cannot occur, the T-shaped sliding groove and the sliding block embedded in the sliding groove are arranged, and the effect of more stable rotation can be achieved.

The present invention may be further configured in a preferred embodiment as: and handles are arranged in the force application grooves, and the handles are U-shaped, the opening ends of the handles face the force application grooves and are fixedly connected to the force application rings.

Through above-mentioned technical scheme, when rotating the application of force ring, to the handle application of force can, need not imbed the finger in the application of force groove and carry out the application of force to application of force ring, improved the convenience.

The present invention may be further configured in a preferred embodiment as: and anti-skid grains are arranged at one end, far away from the opening, of the outer wall of the handle.

Through above-mentioned technical scheme, during the transport, need the handle to be held to the hand, to its application of force, set up anti-skidding line on the handle surface, can increase the friction of palm and handle, play certain antiskid effect, improved customer's use and experienced.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the butt piece supports the pipeline outer wall, carries out the secondary spacingly to the stopcock, has reduced stopcock pivoted possibility under the external effort, increases the pipeline gas tightness simultaneously.

2. After the butt joint block butts against the limiting ring, the pipe plug can not be directly separated along the axial direction, and the probability of separating the pipe plug is reduced.

Drawings

FIG. 1 is an overall isometric view of the present embodiment;

FIG. 2 is a sectional view of the present embodiment;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic structural view of the force application ring and the abutment block;

FIG. 5 is a partial cross-sectional view of the force ring connection.

In the figure, 10, the pipeline; 11. a pipe plug; 111. a sealing section; 112. a fixed section; 12. a first seal ring; 13. a second seal ring; 14. a barometer; 15. a breather pipe; 16. an air pump; 20. a limiting ring; 30. a positioning assembly; 31. a force application ring; 32. a butting block; 33. mounting grooves; 34. a force application groove; 35. a handle; 36. anti-skid lines; 40. a chute; 41. a slider; 42. a butt joint groove; 43. a wire slot; 44. a bump; 45. and (7) a rubber pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a detector for pipeline gas tightness detects, including setting up stopcock 11 at pipeline 10 both ends, alternate barometer 14, the fixed breather pipe 15 of wearing to establish in homonymy stopcock 11 and connect the air pump 16 of keeping away from stopcock 11 one end at breather pipe 15 that is used for detecting pipeline 10 internal gas pressure in one side stopcock 11, breather pipe 15 is connected one end with stopcock 11 and is worn out stopcock 11 a little. Stopcock 11 includes fixed connection's seal segment 111 and canned segment 112, seal segment 111 threaded connection in pipeline 10 inner wall, canned segment 112 butt pipeline 10 outer wall, seal segment 111 outer wall butt pipeline 10 inner wall one side is equipped with first sealing washer 12 along its circumference, canned segment 112 butt pipeline 10 terminal surface one side is fixed and is equipped with second sealing washer 13, second sealing washer 13 supports the pipeline 10 outer wall simultaneously and is close to pipeline 10 open end. The outer wall of the pipeline 10 is fixedly provided with a limiting ring 20 along the circumferential direction, and the fixing section 112 is provided with a positioning component 30 which is pressed against the limiting ring 20 to limit the pipe plug 11.

When detecting the gas tightness of the pipeline 10, the pipe plugs 11 are respectively installed at two ends of the pipeline 10, after screwing, the first sealing ring 12 abuts against the inner wall of the pipeline 10, and the second sealing ring 13 abuts against the end face of the pipeline 10 and the outer wall of the pipeline 10. The positioning assembly 30 abuts against the stop collar 20 to fix the position of the plug 11 again. The air pump 16 is used for pumping or inflating air in the pipeline 10, when the air pump 16 is closed to a certain value, the value displayed by the air pressure meter 14 is recorded. After a period of time, the value of the barometer 14 is observed and recorded. If there is a difference between the two values, it indicates that the pipe 10 is less airtight and is not suitable for the reaction apparatus.

Specifically, referring to fig. 3 and 4, the positioning assembly 30 includes a force application ring 31 rotatably coupled to the plug 11, and an abutment block 32 slidably coupled to the force application ring 31. The fixing section 112 is abutted against one side of the outer wall of the pipeline 10 and is provided with a mounting groove 33 along the circumferential direction thereof, and the outer wall of the fixing section 112 is provided with a plurality of force application grooves 34 communicated with the mounting groove 33 along the circumferential direction thereof. The force application ring 31 is embedded in the installation groove 33, two handles 35 are fixedly arranged on the outer wall of the force application ring 31 along the circumferential direction of the force application ring, the handles 35 are U-shaped, the openings of the handles face the force application ring 31, one ends, far away from the openings, of the handles 35 penetrate out of the force application groove 34, and anti-skidding threads 36 are arranged at one ends, far away from the openings, of the handles 35 along the circumferential direction of the handles.

Referring to fig. 3 and 5, a T-shaped sliding groove 40 is formed in one side of the mounting groove 33, which is far away from the abutting block 32, along the circumferential direction of the mounting groove, a sliding block 41 is fixedly arranged on one side of the limiting ring 20, which abuts against the sliding groove 40, along the circumferential direction of the limiting ring, the sliding block 41 is matched with the sliding groove 40 in shape, the sliding block 41 is embedded in the sliding groove 40, and the sliding block 41 is slidably connected to the sliding groove.

Referring to fig. 3 and 4, the inner wall of the mounting groove 33 is equidistantly provided with four abutting grooves 42 communicating with the inner wall of the fixing section 112 along the circumferential direction thereof, the number of the abutting blocks 32 is uniformly four along the circumferential direction of the force application ring 31, and the abutting blocks 32 are embedded in the abutting grooves 42 and are radially and slidably connected to the abutting grooves 42 along the force application ring 31. The force application ring 31 is close to one end of the abutting block 32 and is provided with a wire groove 43 of an Archimedes spiral line, one side of the abutting block 32 is fixedly connected with a lug 44, and the lug 44 is embedded in the wire groove 43 and is connected to the force application ring 31 in a sliding mode along the trend of the wire groove 43. Pipeline 10 mouthful one side is kept away from to butt piece 32 butt spacing ring 20, and spacing ring 20 both sides all are equipped with fillet spacing ring 20 butt piece 32 one side and are equipped with the fillet, and butt piece 32 butt pipeline 10 one side is fixed and is equipped with rubber pad 45, and rubber pad 45 sets up between two fillets.

When the positioning assembly 30 fixes the pipe plug 11, a tangential force is applied to the handle 35, the force application ring 31 rotates, the sliding block 41 slides in the sliding groove 40, the protrusion 44 is driven to slide in the linear groove 43, and the two sides of the abutting block 32 are limited and can only move along the radial direction of the force application ring 31. During the rotation of the force application ring 31, each abutting block 32 approaches the pipeline 10 until the rubber pad 45 at the lower end of the abutting block 32 abuts against the outer wall of the pipeline 10. The abutting block 32 abuts against the limiting ring 20 at the side close to the pipe plug 11, so that the pipe plug 11 is axially limited.

The implementation principle of the embodiment is as follows: when detecting the gas tightness of the pipeline 10, the pipe plugs 11 are respectively installed at two ends of the pipeline 10, after screwing, the first sealing ring 12 abuts against the inner wall of the pipeline 10, and the second sealing ring 13 abuts against the end face of the pipeline 10 and the outer wall of the pipeline 10. When the positioning assembly 30 fixes the pipe plug 11, a tangential force is applied to the handle 35, the force application ring 31 rotates, the sliding block 41 slides in the sliding groove 40, the protrusion 44 is driven to slide in the linear groove 43, and the two sides of the abutting block 32 are limited and can only move along the radial direction of the force application ring 31. During the rotation of the force application ring 31, each abutting block 32 approaches the pipeline 10 until the rubber pad 45 at the lower end of the abutting block 32 abuts against the outer wall of the pipeline 10. One side of the abutting block 32, which is close to the pipe plug 11, abuts against the limiting ring 20, so that the pipe plug 11 is axially limited for the second time.

The air pump 16 is used for pumping or inflating air in the pipeline 10, when the air pump 16 is closed to a certain value, the value displayed by the air pressure meter 14 is recorded. After a period of time, the value of the barometer 14 is observed and recorded. If there is a difference between the two values, it indicates that the pipe 10 is less airtight and is not suitable for the reaction apparatus.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A detector for detecting the air tightness of a pipeline is characterized in that: including stopcock (11), set up and rotate along stopcock (11) inner wall circumference and connect in application of force ring (31) of stopcock (11), along application of force ring (31) circumference setting and sliding connection in butt piece (32) of application of force ring (31), stopcock (11) are including fixed connection's seal segment (111) and canned paragraph (112), seal segment (111) threaded connection is in pipeline (10) inner wall, seal segment (111) outer wall butt pipeline (10) inner wall one side is equipped with first sealing washer (12) along its circumference, canned paragraph (112) butt pipeline (10) terminal surface and outer wall, mounting groove (33) that supply application of force ring (31) to inlay to establish are seted up along its circumference to canned paragraph (10) outer wall one side, force application groove (34) of a plurality of intercommunication mounting grooves (33) are seted up along its circumference to canned paragraph (112) outer wall, the butt groove (33) inner wall sets up the butt groove (33) of a plurality of intercommunication canned paragraph (112) inner wall along its circumference equidistance along its circumference (42) The utility model discloses a butt joint piece (32) is equipped with a plurality of and inlays respectively to be established in butt joint groove (42), and butt joint piece (32) along application of force ring (31) radial sliding connection in butt joint groove (42), application of force ring (31) are close to butt joint piece (32) one end and set up wire casing (43) of Archimedes helix, each butt joint piece (32) are kept away from butt joint groove (42) one side fixedly connected with lug (44), lug (44) inlay and establish in wire casing (43) and move towards sliding connection in application of force ring (31) along wire casing (43), canned paragraph (112) end fixing is worn to be equipped with exhaust tube and barometer (14), the exhaust tube is kept away from stopcock (11) one end and is connected with air pump (16).

2. The apparatus of claim 1, wherein the apparatus further comprises: and a second sealing ring (13) is fixedly arranged on one side of the end surface of the fixed section (112) abutted against the pipeline (10).

3. The apparatus of claim 1, wherein the apparatus further comprises: the outer wall of the pipeline (10) is fixedly provided with a limiting ring (20) along the circumferential direction of the outer wall, and the abutting block (32) abuts against the limiting ring (20) and is far away from one side of the opening of the pipeline (10).

4. The apparatus of claim 3, wherein the apparatus further comprises: the limiting ring (20) is connected with one side of the abutting block (32) in an abutting mode and one side of the abutting limiting ring (20) is provided with a fillet.

5. The apparatus of claim 1, wherein the apparatus further comprises: a rubber pad (45) is fixedly arranged on one side of each abutting block (32) close to the axle center of the force application ring (31).

6. The apparatus of claim 3, wherein the apparatus further comprises: the mounting groove (33) is far away from the butt joint groove (42) and is provided with the sliding groove (40) of T shape along the circumference, the limiting ring (20) is fixedly provided with the sliding block (41) along the circumference on one side of the butt joint groove (40), the sliding block (41) is embedded in the sliding groove (40), and the sliding block (41) is connected to the sliding groove (40) in a sliding mode.

7. The apparatus of claim 1, wherein the apparatus further comprises: and a handle (35) is arranged in each force application groove (34), and the handle (35) is in a U shape with an opening end facing and fixedly connected to the force application ring (31).

8. The apparatus of claim 7, wherein: and anti-skid grains (36) are arranged at one end, far away from the opening, of the outer wall of the handle (35).