CN102749175B - Device for testing air tightness of four-way valve - Google Patents
Device for testing air tightness of four-way valve Download PDFInfo
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- CN102749175B CN102749175B CN201210253059.2A CN201210253059A CN102749175B CN 102749175 B CN102749175 B CN 102749175B CN 201210253059 A CN201210253059 A CN 201210253059A CN 102749175 B CN102749175 B CN 102749175B
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- pipe
- way valve
- elevating mechanism
- cylinder
- fixedly connected
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Abstract
The invention discloses a device for testing the air tightness of a four-way valve. A cylinder body of a cylinder is fixedly connected with a rack; a piston rod is fixedly connected with an elevating mechanism; the elevating mechanism is in sliding fit with a guide track of the rack so as to make linear reciprocated movement; a space for accommodating the four-way valve is arranged between a pressing plane and a rising plane of the elevating mechanism; the elevating mechanism is used for respectively applying action forces with opposite directions to the wall of a main tube along the radial direction of the main tube of the four-way valve through the pressing plane and the rising plane; four plugging columns are fixed on the rack; and the head parts of the four plugging columns are respectively provided with sealing heads for sealing nozzles of branch tubes of the four-way valve correspondingly; and a limiting rod is fixed on the rack and can be used for preventing the piston rod from moving continuously along the original direction while the sealing heads of the four plugging columns accomplish the sealing to the nozzles of the branch tubes of the four-way valve. With the adoption of the device, the labor cost can be reduced, and the measuring efficiency can be increased.
Description
Technical field
The present invention relates to a kind of four-way valve test device for air tightness, especially relate to a kind of four-way valve test device for air tightness of four-way valve automated production process.
Background technology
Four-way valve, hydraulic valve term is the operation valve with four hydraulic fluid ports.Four-way valve is indispensable parts in refrigeration plant, its principle of work is, when electromagnetic valve coil is in off-position, pilot slide valve moves to left under right side Compress Spring drives, gases at high pressure enter right-hand member plunger shaft after entering kapillary, on the other hand, the gas of left end plunger shaft is discharged, because piston two ends exist pressure reduction, piston and main slide valve move to left, gas outlet is taken over off-premises station communicate, another two adapters communicate, and form refrigeration cycle.The performance whether having leakage (namely whether four-way valve impermeability is good) to be directly connected to four-way valve is welded with between each pipe, so the quality of refrigeration system.Therefore enterprise is in production and product export test, and four-way valve air tightness test is extremely important.
The following problem of domestic existing four-way valve test device for air tightness ubiquity:
1. detect automaticity low.Directly manually to be immersed in the water by valve after testing process is to valve body ventilation, whole test process all needs artificial participation;
2. measuring accuracy is lower.Owing to not accomplishing good pressurize in testing process, the gas passing into valve body is just leaked when not having water-immersed, thus it is inaccurate to cause test result;
3. pilot valve air tightness testing device all needs to configure an operator to each station mostly, and labor cost is high, and production efficiency is low, is not suitable for large-scale production;
4. although valve body material is made of copper, water inspection or corrosion to a certain degree can be caused to valve body, thus affect life of product;
5., because test process is not robotization, the unskilled test speed that will cause of operating personnel's action is slow.
Summary of the invention
In order to solve Problems existing in background technology, the object of the present invention is to provide a kind of four-way valve test device for air tightness.
The technical solution adopted for the present invention to solve the technical problems is: four-way valve test device for air tightness of the present invention comprises frame, cylinder, elevating mechanism, gag lever post and four stifled posts; The cylinder body of described cylinder is fixedly connected with frame, and the piston rod of cylinder is fixedly connected with elevating mechanism; Described frame is provided with guide rail, and described elevating mechanism coordinates with slide, and elevating mechanism can do straight reciprocating motion along guide rail under the drive of the piston rod of cylinder; Described elevating mechanism is provided with relative lower pressure surface and hoists face, described lower pressure surface and hoist and be provided with the space of the supervisor for holding four-way valve between face; Described four stifled posts are fixed in frame, and the head of four stifled posts is respectively equipped with for being managed by the E of four-way valve accordingly, the seal head of the ferrule of S pipe, C pipe and D pipe; Elevating mechanism by lower pressure surface can along the radial direction of the supervisor of four-way valve to supervisor tube wall apply acting force and make the seal head of four stifled posts extend into respectively accordingly four-way valve E pipe, S pipe, C pipe and D pipe in and complete sealing, elevating mechanism by the face of hoisting can along four-way valve supervisor radial direction to supervisor tube wall apply acting force and make the seal head of four stifled posts correspondingly depart from four-way valve E pipe, S pipe, C pipe; Described gag lever post is fixed in frame, this gag lever post can complete at the seal head of described four stifled posts the E of four-way valve is managed, the sealing of the mouth of pipe of S pipe, C pipe and D pipe time prevent described piston rod and continue to move along former direction.
Further, frame of the present invention is provided with the brace table having through hole, and the cylinder body of cylinder to be placed on brace table and to be fixedly connected with brace table; Described elevating mechanism comprises slide block, ear type suspension hook and is provided with the web member of threaded hole, described lower pressure surface and the face that hoists respectively, two relative surfaces of the inner chamber of ear type suspension hook, slide block is fixedly connected with by described web member with ear type suspension hook, the piston rod of cylinder is through the described through hole of brace table and the described threaded hole of web member, and the piston rod of cylinder is threaded with the described threaded hole of web member, described slide block coordinates with slide, and slide block can do straight reciprocating motion along guide rail under the drive of the piston rod of cylinder.
Further, the present invention also comprises stop collar, and described stop collar is fixedly connected with web member, and the piston rod of cylinder can extend in stop collar.
Further, frame of the present invention is provided with the first riser and the second riser concurrently; One in the relative two ends of the first riser is fixedly connected with bearing, and another is fixedly connected with brace table; One in the relative two ends of the second riser is fixedly connected with bearing, and another is fixedly connected with brace table; Described guide rail is fixedly installed on the second riser, makes elevating mechanism can do straight reciprocating motion by a direction to another in the described relative two ends of the second riser.
Compared with prior art, the beneficial effect had is in the present invention:
1. detect automaticity higher: achieve each arm seal process of four-way valve and the robotization of testing process, greatly saved labor cost, improve testing efficiency;
2. measuring accuracy is high: before detecting impermeability, utilizes physical construction to apply acting force to the O type circle of seal head, makes it produce distortion, each inside pipe wall of fitting better, thus makes the sealing effectiveness of each pipe better, ensure that measuring accuracy.
3. the damage of test process to four-way valve is little: because whole process is carried out in atmosphere, and the contact position of each arm of seal head and four-way valve has rubber o-ring to shield, and reduces the impact of test on four-way valve quality to the full extent.
Accompanying drawing explanation
Fig. 1 is that apparatus of the present invention carry out the original state schematic diagram of air-leakage test to four-way valve;
Fig. 2 is the schematic diagram of apparatus of the present invention when four-way valve is in sealing state.
Fig. 3 is the structural representation of a kind of embodiment of frame of the present invention.
Fig. 4 is elevating mechanism of the present invention, position relationship schematic diagram between cylinder and gag lever post.
In figure: 1, cylinder, 2, brace table, 3, slide block, 4, guide rail, 5, second riser, 6, first riser, 7, web member, 8, stop collar, 9, ear type suspension hook, 10, the supervisor of four-way valve, 11, gag lever post, 12, E pipe plug post, 13, D pipe plug post, 14, S pipe plug post, 15, C pipe plug post, 16, second base plate, 17, first base plate, 18, E pipe plug post supporting seat, 19, D pipe plug post hold-down nut, 20, C pipe plug post supporting seat, 21, S pipe plug post clip, 22, ear type suspension hook stationary platform, 23, hoist face, 24, lower pressure surface, 25, four-way valve E manages, 26, four-way valve D manages.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described.
As shown in Figures 1 to 4, the present invention includes frame, cylinder 1, elevating mechanism, gag lever post 11 and four stifled posts, four stifled posts are respectively E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13.
The cylinder body of cylinder 1 is fixedly connected with frame, and the piston rod of cylinder 1 is fixedly connected with elevating mechanism.
Frame is provided with guide rail 4, and elevating mechanism and guide rail 4 are slidably matched, and elevating mechanism can carry out straight reciprocating motion along guide rail 4 under the drive of the piston rod of cylinder 1.
Elevating mechanism is provided with two relative surfaces, namely descends pressure surface 24 and the face 23 that hoists.In the embodiment shown in fig. 1, the face 23 that hoists is positioned at the below of lower pressure surface 24, lower pressure surface 24 and the space be provided with between face 23 for holding four-way valve supervisor 10 that hoists.When the piston rod of cylinder 1 moves downward, drive elevating mechanism along guide rail 4 slippage downwards, when under elevating mechanism slides onto it, pressure surface 24 contacts with the supervisor 10 of four-way valve, lower pressure surface 24 applies downward acting force along the radial direction of the supervisor 10 of four-way valve to the tube wall be responsible for, thus the E making the seal head of four stifled posts extend into four-way valve accordingly respectively manages, S pipe, C pipe and D manage interior and complete sealing.When the piston rod of cylinder 1 moves upward, drive elevating mechanism along guide rail 4 upwards slippage, when elevating mechanism slide onto its face 23 that hoists contact with the supervisor 10 of four-way valve time, hoist the radial direction of face 23 along four-way valve supervisor 10 to the tube wall applying acting force upwards of supervisor, thus makes the seal head of four stifled posts correspondingly depart from E pipe, S pipe, the C pipe of four-way valve.
E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 are fixed on the bearing of frame, and the distribution of E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 is corresponding with the distribution of the E pipe 25 of four-way valve, S pipe (not shown), C pipe (not shown) and D pipe 26.Four stifled posts 12,13,14,15 are positioned at the below of lower pressure surface 24, and the head of four stifled posts is respectively equipped with for accordingly by seal head that the E pipe 25 of four-way valve, S pipe, C pipe and the mouth of pipe of D pipe 26 seal simultaneously.As preferred version of the present invention, can on seal head mounting O-shaped O-ring seal with lift-off seal effect.
In FIG, the bearing 17 that gag lever post 11 is fixed on frame is positioned at the below of the piston rod of cylinder 1, and this gag lever post 11 can be prevented piston rod when the seal head of E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 completes the sealing of the mouth of pipe of E pipe 25, S pipe, C pipe and D pipe 26 to four-way valve and continue to move downward.
As one embodiment of the present invention, as Figure 1-4, frame is provided with the brace table 2 having through hole, and the cylinder body of cylinder 1 to be placed on brace table 2 and to be fixedly connected with brace table 2.Elevating mechanism comprises slide block 3, ear type suspension hook 9 and the web member 7 being provided with threaded hole, the upper surface of the inner chamber of ear type suspension hook 9 is lower pressure surface 24, the lower surface of the inner chamber of ear type suspension hook 9 is the face of hoisting 23, slide block 3 is fixedly connected with by web member 7 with ear type suspension hook 9, the piston rod of cylinder 1 is downwards successively through the described through hole of brace table 2 and the described threaded hole of web member 7, and the piston rod of cylinder 1 is threaded with the threaded hole of web member 7, slide block 3 and guide rail 4 are slidably matched, and slide block 3 can carry out the straight reciprocating motion of vertical direction under the drive of the piston rod of cylinder 1 along guide rail 4.
As another embodiment of the invention, frame is provided with the first riser 6 and the second riser 5 concurrently, first riser 6 is all fixedly connected with bearing 17 with the bottom of the second riser 5, and the first riser 6 is all fixedly connected with the lower surface of brace table 2 with the top of the second riser 5.Guide rail 4 is fixedly installed in the side of the second riser 5, and elevating mechanism can make up and down reciprocatingly rectilinear motion along slide rail 4.
As the preferred embodiment of the present invention, the below of web member 7 is provided with stop collar 8, stop collar 8 is fixedly connected with web member 7, and the piston rod of cylinder 1 can extend in stop collar 8, ensures that the axis of piston rod and gag lever post 11 in each spacing process is on same straight line thus.
When utilizing apparatus of the present invention to carry out air-leakage test to four-way valve, see Fig. 1, first in the lower pressure surface 24 supervisor 10 of four-way valve being placed in elevating mechanism and the cavity hoisted between face 23, and the seal head of E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 is upwards inserted into accordingly in the E pipe 25 of four-way valve, S pipe, C pipe and D pipe 26.Then, the piston rod of cylinder 1 moves downward, and drives elevating mechanism to move downward along guide rail 4.When the lower pressure surface 24 of elevating mechanism contacts with the tube wall of the supervisor 10 of four-way valve, lower pressure surface 24 applies downward acting force along the tube wall of radial direction to the supervisor 10 of four-way valve of the supervisor 10 of four-way valve, four-way valve is pressed down make the seal head of the head of E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 continue accordingly to extend into four-way valve E pipe 25, S pipe, C pipe and D pipe 26 in.When the seal head of E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 upper end just in time completes the sealing of E pipe 25, S pipe, C pipe and D26 pipe to four-way valve simultaneously, the piston rod of cylinder 1 moves downwardly to and offsets (as shown in Figure 2) with gag lever post 11, the piston rod of cylinder 1 is made no longer to continue to move downward, thus, elevating mechanism also no longer continues to move downward.Now, the gas passing into certain pressure intensity toward the E pipe 25 of four-way valve, S pipe, C pipe and D26 pipe carries out air tightness test.After air tightness test completes, the piston rod of cylinder 1 moves upward, and drives elevating mechanism to move upward along guide rail 4.When the face that hoists 23 of elevating mechanism contacts with the tube wall of the supervisor 10 of four-way valve, hoist the radial direction of face 23 along the supervisor 10 of four-way valve to the tube wall applying acting force upwards of four-way valve supervisor 10, the face that hoists 23 of elevating mechanism makes the E pipe 25 of four-way valve, S pipe, C pipe and D pipe 26 depart from the seal head of E pipe plug post 12, S pipe plug post 14, C pipe plug post 15 and D pipe plug post 13 thus, and four-way valve is taken away from elevating mechanism, so far complete the air tightness test of four-way valve.
Claims (3)
1. a four-way valve test device for air tightness, is characterized in that: comprise frame, cylinder, elevating mechanism, gag lever post and four stifled posts;
The cylinder body of described cylinder is fixedly connected with frame, and the piston rod of cylinder is fixedly connected with elevating mechanism;
Described frame is provided with guide rail (4), and described elevating mechanism and guide rail (4) are slidably matched, and elevating mechanism can do straight reciprocating motion along guide rail (4) under the drive of the piston rod of cylinder;
Described elevating mechanism is provided with relative lower pressure surface (24) and the face that hoists (23), is provided with the space of the supervisor (10) for holding four-way valve between described lower pressure surface (24) and the face that hoists (23); Described four stifled posts are fixed in frame, and the head of four stifled posts is respectively equipped with for being managed by the E of four-way valve accordingly, the seal head of the ferrule of S pipe, C pipe and D pipe; Elevating mechanism can apply acting force along the radial direction of the supervisor of four-way valve (10) to the tube wall of supervisor (10) by lower pressure surface (24) and the seal head of four stifled posts extend in the E pipe of four-way valve, S pipe, C pipe and D pipe accordingly respectively and completes sealing, and elevating mechanism can be responsible for (10) along four-way valve radial direction by the face of hoisting applies acting force to the tube wall of supervisor and makes the seal head of four stifled posts correspondingly depart from E pipe, S pipe, the C pipe of four-way valve;
Described gag lever post (11) is fixed in frame, this gag lever post (11) can complete at the seal head of described four stifled posts the E of four-way valve is managed, the sealing of the mouth of pipe of S pipe, C pipe and D pipe time prevent described piston rod and continue to move along former direction;
Described frame is provided with the brace table (2) having through hole, and the cylinder body of cylinder (1) to be placed on brace table and to be fixedly connected with brace table (2), described elevating mechanism comprises slide block (3), ear type suspension hook (9) and be provided with the web member (7) of threaded hole, relative described lower pressure surface (24) and the face that hoists (23) respectively, two surfaces of the inner chamber of ear type suspension hook (9), slide block (3) is fixedly connected with by described web member (7) with ear type suspension hook (9), the piston rod of cylinder (1) is through the described through hole of brace table (2) and the described threaded hole of web member (7), and the piston rod of cylinder is threaded with the described threaded hole of web member (7), described slide block (3) and guide rail (4) are slidably matched, and slide block (3) can do straight reciprocating motion along guide rail (4) under the drive of the piston rod of cylinder (1).
2. four-way valve test device for air tightness according to claim 1, is characterized in that: also comprise stop collar (8), and described stop collar (8) is fixedly connected with web member (7), and the piston rod of cylinder can extend in stop collar.
3. four-way valve test device for air tightness according to claim 1, is characterized in that: described frame is provided with the first riser (6) and the second riser (5) concurrently; One in the relative two ends of the first riser (6) is fixedly connected with bearing (17), and another is fixedly connected with brace table (2); One in the relative two ends of the second riser (5) is fixedly connected with bearing (17), and another is fixedly connected with brace table (2); Described guide rail (4) is fixedly installed on the second riser (5), makes elevating mechanism can do straight reciprocating motion by a direction to another in the described relative two ends of the second riser (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210253059.2A CN102749175B (en) | 2012-07-22 | 2012-07-22 | Device for testing air tightness of four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210253059.2A CN102749175B (en) | 2012-07-22 | 2012-07-22 | Device for testing air tightness of four-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102749175A CN102749175A (en) | 2012-10-24 |
| CN102749175B true CN102749175B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210253059.2A Expired - Fee Related CN102749175B (en) | 2012-07-22 | 2012-07-22 | Device for testing air tightness of four-way valve |
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| CN (1) | CN102749175B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994870B (en) * | 2013-02-20 | 2017-06-30 | 珠海格力电器股份有限公司 | Four-way valve detection method |
| CN105334046A (en) * | 2015-12-14 | 2016-02-17 | 芜湖三花自控元器件有限公司 | High-pressure reversing device used for four-way valve and detection method |
| CN105665298A (en) * | 2016-01-18 | 2016-06-15 | 上海比泽机电设备科技有限公司 | Full-automatic internal leakage test board for four-way valve |
| CN108061642B (en) * | 2017-07-24 | 2023-11-21 | 宁波方太厨具有限公司 | Valve body testing device |
| CN110207898B (en) * | 2019-07-02 | 2020-09-29 | 中国计量大学上虞高等研究院有限公司 | PE welding pipe fitting leak detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837808Y (en) * | 2005-08-18 | 2006-11-15 | 大连现代辅机开发制造有限公司 | Rigid caging device for plug |
| CN201555694U (en) * | 2009-11-03 | 2010-08-18 | 广州新龙浩工业设备有限公司 | Fixture for sealing four-way valve |
| CN201859040U (en) * | 2010-11-08 | 2011-06-08 | 江苏江旭铸造集团有限公司 | Lifting air tightness testing machine |
| CN202720090U (en) * | 2012-07-22 | 2013-02-06 | 中国计量学院 | Four-way valve air tightness test device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3229097B2 (en) * | 1993-12-27 | 2001-11-12 | 三菱重工業株式会社 | Filter defect detector |
| KR100897578B1 (en) * | 2008-01-10 | 2009-05-15 | (주)성동테크 | Leaking test apparatus of sealing parts |
-
2012
- 2012-07-22 CN CN201210253059.2A patent/CN102749175B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837808Y (en) * | 2005-08-18 | 2006-11-15 | 大连现代辅机开发制造有限公司 | Rigid caging device for plug |
| CN201555694U (en) * | 2009-11-03 | 2010-08-18 | 广州新龙浩工业设备有限公司 | Fixture for sealing four-way valve |
| CN201859040U (en) * | 2010-11-08 | 2011-06-08 | 江苏江旭铸造集团有限公司 | Lifting air tightness testing machine |
| CN202720090U (en) * | 2012-07-22 | 2013-02-06 | 中国计量学院 | Four-way valve air tightness test device |
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| CN102749175A (en) | 2012-10-24 |
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