CN211740514U

CN211740514U - Sealing performance inspection system of long-life sealed check valve

Info

Publication number: CN211740514U
Application number: CN202020797441.XU
Authority: CN
Inventors: 陈小芳
Original assignee: Tujin Technology Shenzhen Co ltd
Current assignee: Tujin Technology Shenzhen Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-10-23
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a leakproofness detecting system of sealed check valve of long-life, it includes water storage basin and detection mechanism, detection mechanism includes sleeve, sealed pad, detection check valve, detecting tube and manometer, the manometer is connected with the detecting tube, the coaxial connecting rod that drives sealed pad vertical movement that is provided with in the sleeve, the lower extreme and the sealed pad upper end of connecting rod are fixed, it switches on towards the sleeve inner wall to detect the check valve, the detecting tube is connected with the check valve that awaits measuring, leave the clearance between the surface of water upper end in sleeve lower extreme and the water storage basin, the detecting tube is connected with the stop gear who prescribes a limit to the check valve that awaits measuring and break away from rather than. The invention utilizes the reciprocating movement of the sealing gasket to fill air into the check valve to be tested, and at the moment, when the air in the check valve to be tested reaches a certain limit, the air cannot be manually filled into the check valve any more, and the pressure of the check valve to be tested cannot be too high, so that the check valve to be tested is not easy to damage during the test.

Description

Sealing performance inspection system of long-life sealed check valve

Technical Field

The utility model belongs to the technical field of check valve check out test set's technique and specifically relates to a leakproofness detecting system of long-life sealed check valve is related to.

Background

The check valve is also called as a check valve or a check valve and is used for placing oil in a hydraulic system to reversely flow or placing compressed air in a pneumatic system to reversely flow.

The technical essential of the device for detecting the air tightness of the medical three-way check valve connecting pipe disclosed in the Chinese patent CN209727389U is that: the air inlet pressure gauge is communicated with an air inlet pipe, and an oil-water filter is arranged at the air inlet end of the air inlet pressure gauge; and the machine body is also provided with a test control switch, and the test control switch is used for controlling the electromagnetic valve.

When the check valve is detected, the air compressor is utilized to inflate towards the inside of the check valve, but the pressure which can be reached by the air compressor is very high, the size of a pressure gauge for detecting the internal pressure of the check valve needs to be noticed all the time when the check valve is detected, the damage of the check valve caused by overlarge pressure is prevented, and the detection process of the check valve is troublesome at the moment.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a leakproofness detecting system of sealed check valve of long-life, but the size of the pressure in the manual control check valve that awaits measuring prevents that the workman from not paying attention to the problem that leads to the check valve that awaits measuring to damage because of the too big pressure that leads to in the check valve that awaits measuring.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a leakproofness detecting system of sealed check valve of long-life, includes the water storage basin and sets up the detection mechanism in the water storage basin, detection mechanism is including the sleeve that is fixed in the water storage basin, in the sleeve vertical gliding sealed pad, set up in the detection check valve of sleeve lower extreme, be fixed in the detector tube of sleeve lateral wall and be used for the manometer of detection pressure, the manometer is connected with the detector tube, coaxial being provided with in the sleeve drives the connecting rod of the sealed vertical removal of pad, the lower extreme and the sealed pad upper end of connecting rod are fixed, it switches on towards the sleeve inner wall to detect the check valve, the detector tube is connected with the check valve that awaits measuring, leave the clearance between the surface of water upper end in sleeve lower extreme and the water storage basin, the detector tube is connected with the limit.

Through adopting above-mentioned technical scheme, utilize reciprocating motion's sealed pad to inject the air in towards the check valve that awaits measuring, the connecting rod can't be pressed again to the manual work when atmospheric pressure in the check valve that awaits measuring reaches certain quota this moment to the condition that the check valve damage is led to too big pressure in the check valve that is difficult for appearing awaiting measuring.

The present invention in a preferred example may be further configured to: the sleeve upper end is connected with the actuating mechanism who drives connecting rod reciprocating motion, actuating mechanism is including articulating in the actuating lever of connecting rod upper end and articulating in the intermediate lever of actuating lever one end, the one end that the actuating lever was kept away from to the intermediate lever articulates in the sleeve outer wall, the articulated position of actuating lever and connecting rod is close to the articulated position of intermediate lever and actuating lever.

By adopting the technical scheme, the force arm of the force application is larger than the length of the force arm which hinders the driving rod to move, so that the driving rod is more labor-saving in rotation, and the process of pressurizing in the check valve is more labor-saving.

The present invention in a preferred example may be further configured to: fixedly connected with is the mounting panel of level setting in the water storage basin, the sleeve is fixed in the mounting panel upper end, the up end of mounting panel is less than the up end of water storage basin.

Through adopting above-mentioned technical scheme, when the water droplet fell to the mounting panel upper end this moment, the drop of water still can trickle to the water storage basin in, the difficult condition that water splashes to operational environment that appears this moment.

The present invention in a preferred example may be further configured to: the mounting panel lower extreme fixedly connected with a plurality of strengthening ribs, the lower extreme of strengthening rib all is fixed with the bottom surface of water storage basin.

Through adopting above-mentioned technical scheme, utilize the strengthening rib to increase the joint strength between mounting panel and the water storage basin, take place deformation when the mounting panel receives detection mechanism work and the pressure of exerting this moment.

The present invention in a preferred example may be further configured to: the side wall of the detection tube is fixedly connected with a pressure relief tube communicated with the inner cavity of the detection tube, and one end of the pressure relief tube, far away from the detection tube, is connected with a pressure relief valve for opening and closing the inner cavity of the pressure relief tube.

Through adopting above-mentioned technical scheme, when accomplishing the detection and need break away from check valve and the test tube that awaits measuring, thereby open the atmospheric pressure that the pressure relief valve made in the test tube and external atmospheric pressure keep balance, when breaking away from check valve and test tube that awaits measuring this moment, the check valve that awaits measuring can not produce because of the too high pressure in the test tube and remove, and the process that makes check valve and test tube that awaits measuring break away from is more convenient.

The present invention in a preferred example may be further configured to: the limiting mechanism comprises a hoop, the hoop is sleeved on the outer wall of the detection pipe, and one end of the to-be-detected check valve is inserted into the detection pipe.

Through adopting above-mentioned technical scheme, utilize the staple bolt to exert the power of the check valve that awaits measuring that the orientation inserted in the test tube to the test tube inner wall to increased the frictional force between test tube and the single valve that awaits measuring, made the check valve that awaits measuring difficult and the test tube break away from when detecting, made the testing process of the check valve that awaits measuring more stable.

The present invention in a preferred example may be further configured to: the detection mechanism is including setting up the spacing seat in the water storage basin and being fixed in the connecting pipe that the sleeve one end was kept away from to the test tube, the connecting pipe is the L type and its one end of keeping away from the test tube is connected with the check valve that awaits measuring, the spacing groove has been seted up to spacing seat lateral wall, the connecting pipe is the position of vertical setting and the check valve that awaits measuring and all arranges the spacing inslot in, check valve lower extreme and spacing tank face butt that awaits measuring, the connecting pipe is the upper end and the spacing groove upper end butt that the level set up.

Through adopting above-mentioned technical scheme, after being connected with the connecting pipe with the check valve, arrange limiting groove in simultaneously with connecting pipe and check valve, utilize the limiting groove to inject the relative position between check valve and the connecting pipe this moment to it is more convenient to make the fixed process of check valve and connecting pipe.

The present invention in a preferred example may be further configured to: the side wall of the limiting groove, which is far away from the opening of the limiting groove, penetrates through a communicating hole, an ejection block is connected in the communicating hole in a sliding mode, and the ejection block is abutted to the side wall of the one-way valve to be tested.

By adopting the technical scheme, the check valve to be tested is ejected out of the limit groove through the ejection block, and the process of taking out the check valve to be tested from the limit groove is more convenient.

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

1. the sealing pad is used for moving back and forth so as to fill air into the check valve to be detected, at the moment, when the air in the check valve to be detected reaches a certain limit, the air cannot be manually filled into the check valve, and the pressure of the check valve to be detected cannot be too high, so that the check valve to be detected is not easy to damage during detection;

2. utilize spacing seat to inject the relative position between connecting pipe and the check valve that awaits measuring, can not produce mutual separation between check valve that awaits measuring and the connecting pipe this moment to make the testing process of the check valve that awaits measuring more stable.

Drawings

FIG. 1 is a perspective view of embodiment 1;

FIG. 2 is a schematic view for showing a driving mechanism of embodiment 1;

FIG. 3 is a schematic view for showing a stopper mechanism according to embodiment 2;

fig. 4 is a schematic view of embodiment 2 for showing a structure of pushing out the check valve to be tested from the limiting groove.

In the figure, 1, a water storage basin; 11. mounting a plate; 12. reinforcing ribs; 2. a detection mechanism; 21. a sleeve; 211. a connecting plate; 22. a gasket; 221. a connecting rod; 23. detecting a one-way valve; 24. a detection tube; 25. a pressure gauge; 26. detecting a valve; 27. a pressure relief pipe; 271. a pressure relief valve; 3. a drive mechanism; 31. a drive rod; 32. an intermediate lever; 4. a limiting mechanism; 41. hooping; 42. a limiting seat; 421. a limiting groove; 422. a communicating hole; 43. a connecting pipe; 44. ejecting a block; 45. and a butt joint block.

Detailed Description

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

Example 1: as shown in fig. 1, the sealing performance test system for a long-life sealed check valve disclosed by the invention comprises a water storage basin 1 with an upper opening structure and a detection mechanism 2 arranged in the water storage basin 1, wherein a horizontally arranged mounting plate 11 is integrally formed on the inner wall of the water storage basin 1, a gap is reserved between the lower end surface of the mounting plate 11 and the bottom surface of the water storage basin 1, and the upper end surface of the mounting plate 11 is lower than the upper end surface of the water storage basin 1. A plurality of strengthening ribs 12 that are vertical setting are integrally formed on the lower end face of the mounting plate 11, the lower ends of the strengthening ribs 12 and the bottom face of the water storage basin 1 are integrally formed, and the strengthening ribs 12 are close to the inner wall of the water storage basin 1 and are integrally formed with the inner wall of the water storage basin 1.

As shown in fig. 1 and 2, the detection mechanism 2 includes a sleeve 21 disposed in the water storage basin 1, a sealing gasket 22 vertically sliding in the sleeve 21, a detection check valve 23 disposed at a lower end of the sleeve 21, a detection tube 24 fixed on an outer wall of the sleeve 21, and a pressure gauge 25 for detecting pressure. Sleeve 21 is cylindric and upper shed setting, and its lower extreme welding has a connecting plate 211, and connecting plate 211 uses the bolt fastening in mounting panel 11 upper end, and detects check valve 23 and set up in sleeve 21 lower extreme, detects check valve 23 and switches on towards sleeve 21 is inside, and the lower extreme of check valve passes mounting panel 11 and leaves the clearance with between the surface of water in the water storage basin 1. The detection tube 24 is fixed on the outer wall of the sleeve 21 by using a tube joint and is close to the position of the detection check valve 23, one end of the detection tube 24, which is far away from the sleeve 21, is connected with the check valve to be detected, and the detection tube 24 is further connected with a limiting mechanism 4 for limiting the separation of the check valve to be detected and the detection tube 24. The pressure gauge 25 is connected to the position of the detection tube 24 close to the sleeve 21 by using a pipe joint, the detection tube 24 is also connected with a detection valve 26 for opening and closing an inner cavity channel of the detection tube 24, and the detection valve 26 is positioned at the position of the detection tube 24 close to the sleeve 21. The sealing gasket 22 is arranged in the inner cavity of the sleeve 21, the side wall of the sealing gasket is attached to the inner wall of the sleeve 21, the upper end of the sealing gasket is welded with a connecting rod 221 which is coaxial with the axis of the sleeve 21, and the outer wall of the connecting rod 221 is abutted to the inner wall of the sleeve 21. At this time, the check valve to be detected is connected with the detection pipe 24, the connecting rod 221 is moved up and down in a reciprocating mode so as to charge air into the check valve to be detected, the pressure gauge 25 is used for observing whether the air pressure in the check valve reaches the standard or not, then the check valve is placed in the water storage basin 1 to observe whether bubbles appear in the water or not, and if the bubbles do not appear, the air tightness of the check valve reaches the standard.

As shown in fig. 2, in order to facilitate the reciprocating movement of the connecting rod 221, the upper end of the sleeve 21 is connected to a driving mechanism 3 for driving the connecting rod 221 to reciprocate, the driving mechanism 3 includes a driving rod 31 hinged to the upper end of the connecting rod 221 and an intermediate rod 32 hinged to one end of the driving rod 31, one end of the intermediate rod 32, which is far away from the driving rod 31, is hinged to the upper end of the sidewall of the sleeve 21, and the hinged position of the driving rod 31 and the connecting rod 221 is close to the hinged position of the intermediate rod 32 and. At this time, force is applied to one end of the driving rod 31 far away from the middle rod 32 to drive the connecting rod 221 to move up and down, and the force arm of the force is larger than the length of the force arm which hinders the driving rod 31 to move, so that the driving rod 31 can rotate more easily, and the process of pressurizing the inside of the one-way valve is more labor-saving.

As shown in fig. 1, since the check valve to be tested needs to be separated from the detection tube 24 after the detection is completed, at this time, the process of directly separating the check valve to be tested from the detection tube 24 is troublesome due to the overhigh pressure in the detection tube 24. Therefore, the side wall of the detection tube 24 far away from the pressure gauge 25 is connected with a pressure relief tube 27 by using a tube joint, and one end of the pressure relief tube 27 far away from the detection tube 24 is connected with a pressure relief valve 271 for opening and closing the inner cavity of the pressure relief tube. When the detection is completed and the check valve to be detected needs to be separated from the detection tube 24, the pressure relief valve 271 is opened so that the air pressure in the detection tube 24 is kept balanced with the external atmospheric pressure, and at the moment, when the check valve to be detected is separated from the detection tube 24, the check valve to be detected cannot move due to overhigh pressure in the detection tube 24, so that the separation process of the check valve to be detected and the detection tube 24 is more convenient.

As shown in fig. 1, the limiting mechanism 4 includes the hoop 41 sleeved on the outer wall of the detection tube 24, and the hoop 41 is used for applying a force towards the check valve to be detected inserted into the detection tube 24 to the inner wall of the detection tube 24, so that the friction force between the detection tube 24 and the single valve to be detected is increased, the check valve to be detected is not easy to separate from the detection tube 24 when being detected, and the detection process of the check valve to be detected is more stable.

The implementation principle of the embodiment is as follows: insert the check valve's that awaits measuring one end in the test tube 24, later utilize staple bolt 41 to be connected the check valve that awaits measuring with test tube 24, reciprocal promotion actuating lever 31 makes the reading that manometer 25 detected reach certain vertical, later close test valve 26 and place the check valve that awaits measuring in aqueous a period, observe whether there is the bubble to emit, later take out the check valve that awaits measuring from aqueous, open pressure relief valve 271 and make the pressure in the test tube 24 keep unanimous with external atmospheric pressure, loosen staple bolt 41 and take off the check valve that awaits measuring after that.

Embodiment 2 as shown in fig. 3, the difference from embodiment 1 is that the limiting mechanism 4 includes a limiting seat 42 disposed in the water storage tank and a connecting pipe 43 fixed to one end of the detecting pipe 24 far from the sleeve 21, the connecting pipe 43 is L-shaped, one end of the connecting pipe 43 connected to the detecting pipe 24 is a horizontal section, the other end of the connecting pipe is a vertical section, the horizontal section of the connecting pipe 43 is connected to the detecting pipe 24 by using a pipe joint, and the vertical section of the connecting pipe 43 is connected to the check valve to be tested. Spacing seat 42 is a vertical lateral wall and has seted up spacing groove 421, and connecting pipe 43 and the single valve that awaits measuring are all arranged in spacing groove 421, and the horizontal segment upper end and the up end butt of spacing groove 421 of connecting pipe 43, the check valve that awaits measuring is lower single and the terminal surface butt under the spacing groove 421. At this moment, after the check valve is connected with the connecting pipe 43, the connecting pipe 43 and the check valve to be tested are simultaneously arranged in the limiting groove 421, and the relative position between the check valve and the connecting pipe 43 is limited by the limiting groove 421, so that the fixing process of the check valve and the connecting pipe 43 is more convenient.

As shown in fig. 4, in order to facilitate the process of taking out the check valve to be tested from the limiting groove 421, the communicating hole 422 penetrates through the side wall of the limiting groove 421 away from the opening, the ejecting block 44 for ejecting the check valve to be tested from the limiting groove 421 is connected to the communicating hole 422 in a sliding manner, the abutting block 45 is integrally formed at one end of the ejecting block 44 located in the limiting groove 421, one end of the abutting block 45 close to the ejecting block 44 abuts against the side wall of the limiting groove 421 provided with the communicating hole 422, and one end of the abutting block 45 away from the ejecting block 44 abuts against the side wall of the check valve to be tested. At this time, the check valve to be tested is ejected out of the limit groove 421 through the ejection block 44, and the process of taking out the check valve to be tested from the limit groove 421 is more convenient.

The implementation principle of the embodiment is as follows: insert the one end of the check valve that awaits measuring in the vertical section of connecting pipe 43, later all arrange check valve and the connecting pipe 43 that awaits measuring in spacing groove 421, reciprocal promotion actuating lever 31 makes the reading that manometer 25 detected reach certain vertical, later close detection valve 26 and arrange the check valve that awaits measuring in aqueous for a period, observe whether there is the bubble to emerge, later take out the check valve that awaits measuring from aqueous, open decompression valve 271 and make the pressure in the detection tube 24 keep unanimous with external atmospheric pressure, promote ejecting piece 44 to ejecting from spacing groove 421 with the check valve that awaits measuring after that, take off the check valve that awaits measuring from connecting pipe 43.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a leakproofness detecting system of sealed check valve of long-life which characterized in that: including water storage basin (1) and set up detection mechanism (2) in water storage basin (1), detection mechanism (2) including be fixed in sleeve (21) of water storage basin (1), in sleeve (21) vertical gliding sealed pad (22), set up in detection check valve (23) of sleeve (21) lower extreme, be fixed in detection tube (24) of sleeve (21) lateral wall and be used for detecting pressure manometer (25), manometer (25) are connected with detection tube (24), coaxial connecting rod (221) that drive sealed pad (22) vertical migration in sleeve (21) that is provided with, the lower extreme and sealed pad (22) upper end of connecting rod (221) are fixed, it switches on towards sleeve (21) inner wall to detect check valve (23), detection tube (24) are connected with the check valve that awaits measuring, leave the clearance between sleeve (21) lower extreme and the surface of water in water storage basin (1), the detection tube (24) is connected with a limiting mechanism (4) for limiting the one-way valve to be detected to be separated from the detection tube.

2. The system for testing the sealing performance of a long life sealed check valve of claim 1, wherein: sleeve (21) upper end is connected with drive mechanism (3) that drives connecting rod (221) reciprocating motion, drive mechanism (3) are including articulating in actuating lever (31) of connecting rod (221) upper end and articulating in intermediate lever (32) of actuating lever (31) one end, the one end that actuating lever (31) were kept away from in intermediate lever (32) articulates in sleeve (21) outer wall, the articulated position of actuating lever (31) and connecting rod (221) is close to the articulated position of intermediate lever (32) and actuating lever (31).

3. The system for testing the sealing performance of a long life sealed check valve of claim 1, wherein: fixedly connected with is mounting panel (11) that the level set up in water storage basin (1), sleeve (21) are fixed in mounting panel (11) upper end, the up end of mounting panel (11) is less than the up end of water storage basin (1).

4. A system for testing the sealing performance of a long life sealed check valve as claimed in claim 3, wherein: the mounting panel (11) lower extreme fixedly connected with a plurality of strengthening ribs (12), the lower extreme of strengthening rib (12) all is fixed with the bottom surface of water storage basin (1).

5. The system for testing the sealing performance of a long life sealed check valve of claim 1, wherein: the side wall of the detection pipe (24) is fixedly connected with a pressure relief pipe (27) communicated with the inner cavity of the detection pipe, and one end, far away from the detection pipe (24), of the pressure relief pipe (27) is connected with a pressure relief valve (271) for opening and closing the inner cavity of the pressure relief pipe.

6. The system for testing the sealing performance of a long life sealed check valve of claim 1, wherein: the limiting mechanism (4) comprises a hoop (41), the hoop (41) is sleeved on the outer wall of the detection pipe (24), and one end of the to-be-detected one-way valve is inserted into the detection pipe (24).

7. The system for testing the sealing performance of a long life sealed check valve of claim 1, wherein: detection mechanism (2) are including setting up spacing seat (42) in water storage basin (1) and being fixed in connecting pipe (43) that sleeve (21) one end was kept away from in sense tube (24), connecting pipe (43) are the L type and its one end of keeping away from sense tube (24) is connected with the check valve that awaits measuring, spacing groove (421) have been seted up to spacing seat (42) lateral wall, connecting pipe (43) are the position of vertical setting and the check valve that awaits measuring and all arrange spacing groove (421) in, the check valve lower extreme that awaits measuring and spacing groove (421) bottom surface butt, connecting pipe (43) are the upper end and spacing groove (421) upper end butt that the level set up.

8. The system for testing the sealing performance of a long life sealed check valve of claim 7, wherein: the side wall of the limiting groove (421), which is far away from the opening of the limiting groove, penetrates through a communicating hole (422), an ejection block (44) is connected in the communicating hole (422) in a sliding mode, and the ejection block (44) is abutted to the side wall of the to-be-detected one-way valve.