CN108507721A - A kind of sealing performance test method of flower bud shape sealing ring - Google Patents

A kind of sealing performance test method of flower bud shape sealing ring Download PDF

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Publication number
CN108507721A
CN108507721A CN201810240917.7A CN201810240917A CN108507721A CN 108507721 A CN108507721 A CN 108507721A CN 201810240917 A CN201810240917 A CN 201810240917A CN 108507721 A CN108507721 A CN 108507721A
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CN
China
Prior art keywords
cylinder
flower bud
sealing ring
bud shape
piston
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Granted
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CN201810240917.7A
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Chinese (zh)
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CN108507721B (en
Inventor
任坤
张盼盼
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ZHUJI CHENGXIANG MACHINERY Co.,Ltd.
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Zhengzhou Ciumpe Electronic Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a kind of sealing performance test methods of flower bud shape sealing ring, include the following steps:S1, flower bud shape sealing ring is put into inside the annular spacing groove inside cylinder upper end, and cylinder is caught in inside the card slot of connecting tube bottom inner portion and is screwed by fixture block;S2, start telescopic cylinder and release water tank from the inside of supporting table, cylinder and connecting tube are immersed in the water inside water tank;S3, piston is pushed using driving device, to the internal pressurization of piston cylinder, by gradually pressurizeing, the sealing performance test to flower bud shape sealing ring can be completed.The test method of the present invention is easy to operate, and improves the test effect of test device.

Description

A kind of sealing performance test method of flower bud shape sealing ring
Technical field
The invention belongs to experiments of sealing performance equipment technical fields, and in particular to a kind of sealing performance survey of flower bud shape sealing ring Method for testing.
Background technology
Flower bud shape sealing ring is also known as piston rod seals, is that a kind of suppressed by rubber ring in Y shape folder fabric rubber ring and lip is glued Unidirectional solid sealing ring made of conjunction.It is mainly used on coal industry hydraulic support column, is a kind of common accessory, mainly There are polyurethane compositions to be molded.Effect is to prevent from the emulsion in hydraulic cylinder from revealing to cause hydraulic direct protective function is discarded to set.It is suitable For hydraulic cylinder piston rod reciprocating motion sealing device, it can also be used to the static seal device of flange end cap.In flower bud shape sealing ring In production process, needs to carry out experimental test to the sealing performance of flower bud shape sealing ring, to prevent defective products from dispatching from the factory, not only influence enterprise The prestige of industry, while the return of goods are will also result in, bring loss to manufacturer.
The sealing property tester of existing flower bud shape sealing ring is largely complicated, and cumbersome, testing efficiency is low Under.For this purpose, proposing a kind of sealing performance test method of flower bud shape sealing ring.
Invention content
The purpose of the present invention is to provide a kind of sealing performance test methods of flower bud shape sealing ring, to solve above-mentioned background skill The problem of being proposed in art, optimal inspection method make easy to operate, testing efficiency raising, and improve the test effect of test device Fruit.
To achieve the above object, present invention employs following technical solutions:
A kind of experiments of sealing performance method of flower bud shape sealing ring, includes the following steps:
S1, flower bud shape sealing ring is put into inside the annular spacing groove inside cylinder upper end, and cylinder is caught in by fixture block Inside the card slot of connecting tube bottom inner portion and screw;
S2, start telescopic cylinder by water tank from the release of the inside of supporting table, cylinder and connecting tube are immersed inside water tank In water;
S3, piston is pushed, by gradually pressurizeing, to be completed to flower bud shape to the internal pressurization of piston cylinder using driving device The sealing performance of sealing ring is tested.
The test method uses a kind of sealing property tester of flower bud shape sealing ring comprising supporting table, it is described The inside of supporting table is installed with telescopic cylinder, is fixed at the telescopic rod of the telescopic cylinder and the bottom centre position of pallet Connection, the top of the pallet are fixed with water tank, and the pallet and water tank are arranged at the inside of supporting table, the supporting table Top side be fixedly welded with L-type support, the upper end inner roof wall lower part of the L-type support is installed with piston cylinder, described Piston cylinder is internally provided with piston, is fixedly connected with the output shaft of driving device at the central upper portion position of the piston, described Driving device is fixedly mounted on the top of L-type support, and the bottom connection of the piston cylinder is equipped with connecting tube, the bottom of the connecting tube End is internal to offer card slot, and the bottom end of the pipeline is equipped with flange collar, and the bottom end of the connecting tube is connected with cylinder, the cylinder Upper end both sides are arranged with two fixture blocks, and the annular spacing groove to match with flange collar is offered inside the upper end of cylinder, described The bottom inner portion of connecting tube is arranged with two insert ports to match with fixture block.
Preferably, the top of the water tank is hatch frame.
Preferably, the bottom four corners of the supporting table are arranged with four rubber supporting legs.
Preferably, the piston cylinder is made of transparent toughened plastic material, and the outside of piston cylinder is equipped with graduation mark.
Preferably, it is equipped with fixed ear outside the upper end of the piston cylinder, the fixed ear is mounted by means of bolts on L-type The upper end inner roof wall lower part of holder.
Preferably, the driving device is cylinder or electric cylinders.
Preferably, the external side of the supporting table is equipped with dismountable cover plate by screw.
Preferably, the table top of the supporting table offers the through-hole lifted for water tank.
Preferably, the upper end bottom of the fixture block is equipped with inclined-plane.
Preferably, the upper end bottom of the fixture block is equipped with inclined-plane.
Preferably, in order to make the engaging of fixture block more closely with card slot, the angle α of the inclined-plane and horizontal plane is 30- 45 degree.
Preferably, the angle α of the inclined-plane and horizontal plane meets:
Wherein, β is piston cylinder material coefficient, when the material of piston cylinder is cast iron, β 0.074-0.092;Work as piston cylinder Material coefficient, when the material of piston cylinder is stainless steel, β 0.072-0.124;T by flower bud shape sealing ring from test when bear Pressure.
Compared with prior art, the beneficial effects of the invention are as follows:
1, the sealing performance test method of flower bud shape sealing ring of the invention passes through solid in the upper end inner roof wall lower part of L-type support Dingan County fills piston cylinder, and piston cylinder is internally provided with piston, is fixed with the output shaft of driving device at the central upper portion position of piston Connection, using driving device driving piston piston cylinder internal pressurization, using pressure to the experiments of sealing performance of flower bud shape sealing ring, So that the apparatus structure is simple, it is easy to operate;
2, the bottom connection of the sealing performance test method piston cylinder of flower bud shape sealing ring of the invention is equipped with connecting tube, connection The bottom inner portion of pipe offers card slot, and the bottom end of pipeline is equipped with flange collar, and the bottom end of connecting tube is connected with cylinder, the upper end two of cylinder Side is arranged with two fixture blocks, and the annular spacing groove to match with flange collar is offered inside the upper end of cylinder, the bottom of connecting tube End internal symmetry is set there are two the insert port to match with fixture block, can be quickly put into flower bud shape sealing ring by arrangement above Inside annular spacing groove, and cylinder is caught in inside connecting tube, flange collar is used in combination to resist flower bud shape sealing ring so that connecting tube and cylinder The space of one sealing of composition, can quickly test flower bud shape sealing ring so that experimental test efficiency greatly improves;
3, the sealing performance test method of flower bud shape sealing ring of the invention is by setting the angle on inclined-plane and horizontal plane, and The relationship for the pressure that the angle is born with piston rod material, flower bud shape sealing ring in test, keeps fixture block more tight with card slot Close engaging improves the test effect of the test device
Description of the drawings
Fig. 1 is the sealing property testing equipment schematic diagram of the flower bud shape sealing ring of the present invention;
Fig. 2 is the sealing property testing equipment connecting tube sectional view of the flower bud shape sealing ring of the present invention;
Fig. 3 is the sealing property testing equipment tube structure schematic diagram of the flower bud shape sealing ring of the present invention;
Fig. 4 is the sealing property testing equipment fixture block structural schematic diagram of the flower bud shape sealing ring of the present invention;
Fig. 5 is the sealing property testing equipment connecting tube upward view of the flower bud shape sealing ring of the present invention;
Fig. 6 is the sealing property testing equipment front view of the flower bud shape sealing ring of the present invention;
Fig. 7 is the sealing property testing equipment supporting table vertical view of the flower bud shape sealing ring of the present invention;
Fig. 8 is the sealing performance test method flow chart of the flower bud shape sealing ring of the present invention.
In figure:1 supporting table, 2L types holder, 3 driving devices, 4 cylinders, 5 connecting tubes, 6 pistons, 7 bolts, 8 fixed ears, 9 are lived It is plug cylinder, 10 water tanks, 11 pallets, 12 telescopic cylinders, 13 screws, 14 dismountable cover plates, 15 graduated scales, 16 through-holes, 17 card slots, 18 convex Circle, 19 fixture blocks, 20 inclined-planes, 21 annular grooves, 22 insert ports, 23 rubber supporting legs.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Herein Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.Based on the embodiments of the present invention, Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair The range of bright protection.
Embodiment 1
- 8 are please referred to Fig.1, the present invention provides a kind of technical solution:A kind of experiments of sealing performance method of flower bud shape sealing ring, Include the following steps:
S1, flower bud shape sealing ring is put into inside the annular spacing groove inside cylinder upper end, and cylinder is caught in by fixture block Inside the card slot of connecting tube bottom inner portion and screw;
S2, start telescopic cylinder by water tank from the release of the inside of supporting table, cylinder and connecting tube are immersed inside water tank In water;
S3, piston is pushed, by gradually pressurizeing, to be completed to flower bud shape to the internal pressurization of piston cylinder using driving device The sealing performance of sealing ring is tested.
The test method uses a kind of sealing property tester of flower bud shape sealing ring, including supporting table 1, the branch The inside of support platform 1 is installed with telescopic cylinder 12, the bottom centre position of the telescopic rod and pallet 11 of the telescopic cylinder 12 Place is fixedly connected, and the top of the pallet 11 is fixed with water tank 10, and the pallet 11 and water tank 10 are arranged at supporting table 1 The top side of inside, the supporting table 1 is fixedly welded with L-type support 2, and the upper end inner roof wall lower part of the L-type support 2 is fixed Piston cylinder 9 is installed, the piston cylinder 9 is internally provided with piston 6, at the central upper portion position of the piston 6 with driving device 3 Output shaft be fixedly connected, the driving device 3 is fixedly mounted on the top of L-type support 2, the bottom connection of the piston cylinder 9 Equipped with connecting tube 5, the bottom inner portion of the connecting tube 5 offers card slot 17, and the bottom end of the pipeline 5 is equipped with flange collar 18, described The bottom end of connecting tube 5 is connected with cylinder 4, and the upper end both sides of the cylinder 4 are arranged with two fixture blocks 19, and the upper end of cylinder 4 Inside offers the annular spacing groove 21 to match with flange collar 18, and the bottom inner portion of the connecting tube 5 is arranged with two and card The insert port 22 that block 19 matches.
The top of the water tank 10 is hatch frame, and the top of water tank 10, which is set on mouth structure, to be convenient for 4 He of cylinder Connecting tube 5 immerses in the water inside water tank 10.
The bottom four corners of the supporting table 1 are arranged with four rubber supporting legs 23, which, which has, preferably subtracts Anti-skidding effect is shaken, the operation of device stabilization is conducive to.
The piston cylinder 9 is made of transparent toughened plastic material, and the outside of piston cylinder 9 is equipped with graduation mark 15, the scale Line 15 tests each scale corresponding pressure value before setting, using pressure test device so that in test flower bud shape sealing ring Convenient for reading pressure value.
Fixed ear 8 is equipped with outside the upper end of the piston cylinder 9, the fixed ear 8 is fixedly mounted on L-type branch by bolt 7 The upper end inner roof wall lower part of frame 2, the fixed ear 8 is internally threaded hole, and fixed ear 8 is integrally formed with piston cylinder 9.
The driving device 3 is cylinder, drives piston 6 conveniently to do isometric exercise by cylinder, is driven and lived by electric cylinders Plug 6 can random regulating piston 6 move distance, cylinder or electric cylinders can be selected according to different test requirements documents.
The external side of the supporting table 1 is equipped with dismountable cover plate 14 by screw 13, by the way that dismountable cover plate is arranged 14 are convenient for later maintenance.
The table top of the supporting table 1 offers the through-hole 16 lifted for water tank 10, which is convenient for telescopic cylinder 12 Water tank 10 is driven to lift.
The upper end bottom of the fixture block 19 is equipped with inclined-plane 20, and the inclined-plane 20 has better guiding function, and is convenient for fixture block 19 closely engage with card slot 17.
Operation principle:Flower bud shape sealing ring when experimental test, is put into column by the sealing property tester of this flower bud shape sealing ring Inside annular spacing groove 21 inside 4 upper end of body, and cylinder 4 is caught in the card slot 17 of 5 bottom inner portion of connecting tube by fixture block 19 Inside simultaneously screws, and starts telescopic cylinder 12 and releases water tank 10 from the inside of supporting table 1, cylinder 4 and connecting tube 5 are immersed water tank In water inside 10, piston 6 is pushed using driving device 3, to the internal pressurization of piston cylinder 9, by gradually pressurizeing, can be completed pair The experiments of sealing performance of flower bud shape sealing ring.
Embodiment 2
A kind of experiments of sealing performance method of flower bud shape sealing ring, includes the following steps:
S1, flower bud shape sealing ring is put into inside the annular spacing groove inside cylinder upper end, and cylinder is caught in by fixture block Inside the card slot of connecting tube bottom inner portion and screw;
S2, start telescopic cylinder by water tank from the release of the inside of supporting table, cylinder and connecting tube are immersed inside water tank In water;
S3, piston is pushed, by gradually pressurizeing, to be completed to flower bud shape to the internal pressurization of piston cylinder using driving device The sealing performance of sealing ring is tested.
The test method uses a kind of sealing property tester of flower bud shape sealing ring, including supporting table 1, the branch The inside of support platform 1 is installed with telescopic cylinder 12, the bottom centre position of the telescopic rod and pallet 11 of the telescopic cylinder 12 Place is fixedly connected, and the top of the pallet 11 is fixed with water tank 10, and the pallet 11 and water tank 10 are arranged at supporting table 1 The top side of inside, the supporting table 1 is fixedly welded with L-type support 2, and the upper end inner roof wall lower part of the L-type support 2 is fixed Piston cylinder 9 is installed, the piston cylinder 9 is internally provided with piston 6, at the central upper portion position of the piston 6 with driving device 3 Output shaft be fixedly connected, the driving device 3 is fixedly mounted on the top of L-type support 2, the bottom connection of the piston cylinder 9 Equipped with connecting tube 5, the bottom inner portion of the connecting tube 5 offers card slot 17, and the bottom end of the pipeline 5 is equipped with flange collar 18, described The bottom end of connecting tube 5 is connected with cylinder 4, and the upper end both sides of the cylinder 4 are arranged with two fixture blocks 19, and the upper end of cylinder 4 Inside offers the annular spacing groove 21 to match with flange collar 18, and the bottom inner portion of the connecting tube 5 is arranged with two and card The insert port 22 that block 19 matches.
The top of the water tank 10 is hatch frame, and the top of water tank 10, which is set on mouth structure, to be convenient for 4 He of cylinder Connecting tube 5 immerses in the water inside water tank 10.
The bottom four corners of the supporting table 1 are arranged with four rubber supporting legs 23, which, which has, preferably subtracts Anti-skidding effect is shaken, the operation of device stabilization is conducive to.
The piston cylinder 9 is made of transparent toughened plastic material, and the outside of piston cylinder 9 is equipped with graduation mark 15, the scale Line 15 tests each scale corresponding pressure value before setting, using pressure test device so that in test flower bud shape sealing ring Convenient for reading pressure value.
Fixed ear 8 is equipped with outside the upper end of the piston cylinder 9, the fixed ear 8 is fixedly mounted on L-type branch by bolt 7 The upper end inner roof wall lower part of frame 2, the fixed ear 8 is internally threaded hole, and fixed ear 8 is integrally formed with piston cylinder 9.
The driving device 3 is cylinder, drives piston 6 conveniently to do isometric exercise by cylinder, is driven and lived by electric cylinders Plug 6 can random regulating piston 6 move distance, cylinder or electric cylinders can be selected according to different test requirements documents.
The external side of the supporting table 1 is equipped with dismountable cover plate 14 by screw 13, by the way that dismountable cover plate is arranged 14 are convenient for later maintenance.
The table top of the supporting table 1 offers the through-hole 16 lifted for water tank 10, which is convenient for telescopic cylinder 12 Water tank 10 is driven to lift.
The upper end bottom of the fixture block 19 is equipped with inclined-plane 20, and the inclined-plane 20 has better guiding function, and is convenient for fixture block 19 closely engage with card slot 17.
In order to make the engaging of fixture block more closely with card slot, the angle α of the inclined-plane and horizontal plane is 30-45 degree.
Preferably, the angle α of the inclined-plane and horizontal plane meets:
Wherein, β is piston cylinder material coefficient, when the material of piston cylinder is cast iron, β 0.074-0.092;Work as piston cylinder Material coefficient, when the material of piston cylinder is stainless steel, β 0.072-0.124;T by flower bud shape sealing ring from test when bear Pressure.
Finally it should be noted that:The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features, All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's Within protection domain.

Claims (6)

1. a kind of sealing performance test method of flower bud shape sealing ring, which is characterized in that described includes the following steps:
S1, flower bud shape sealing ring is put into inside the annular spacing groove inside cylinder upper end, and cylinder is caught in connection by fixture block Inside the card slot of pipe bottom inner portion and screw;
S2, start telescopic cylinder and release water tank from the inside of supporting table, cylinder and connecting tube are immersed in the water inside water tank;
S3, piston is pushed using driving device, to the internal pressurization of piston cylinder, by gradually pressurizeing, can completes to seal flower bud shape The sealing performance of circle is tested.
2. a kind of sealing performance test method of flower bud shape sealing ring according to claim 1, it is characterised in that:The survey Method for testing uses a kind of sealing property testing equipment of flower bud shape sealing ring, and the test device includes supporting table (1), the branch The inside of support platform (1) is installed with telescopic cylinder (12), the bottom of the telescopic rod and pallet (11) of the telescopic cylinder (12) Center position is fixedly connected, and the top of the pallet (11) is fixed with water tank (10), the pallet (11) and water tank (10) It is arranged at the inside of supporting table (1), the top side of the supporting table (1) is fixedly welded with L-type support (2), the L-type branch The upper end inner roof wall lower part of frame (2) is installed with piston cylinder (9), and the piston cylinder (9) is internally provided with piston (6), described It is fixedly connected with the output shaft of driving device (3) at the central upper portion position of piston (6), the driving device (3) is fixedly mounted Top in L-type support (2), the bottom of the piston cylinder (9), which is connected to, is equipped with connecting tube (5), in the bottom end of the connecting tube (5) Portion offers card slot (17), and the bottom end of the pipeline (5) is equipped with flange collar (18), and the bottom end of the connecting tube (5) is connected with cylinder (4), the upper end both sides of the cylinder (4) are arranged with two fixture blocks (19), and are offered inside the upper end of cylinder (4) and flange collar (18) bottom inner portion of the annular spacing groove (21) to match, the connecting tube (5) is arranged with two and fixture block (19) phase The insert port (22) matched.
3. a kind of sealing performance test method of flower bud shape sealing ring according to claim 2, it is characterised in that:The piston Fixed ear (8) is equipped with outside the upper end of cylinder (9), the fixed ear (8) is fixedly mounted on the upper of L-type support (2) by bolt (7) Hold inner roof wall lower part.
4. a kind of sealing performance test method of flower bud shape sealing ring according to claim 2 or 3, it is characterised in that:It is described Driving device (3) is cylinder or hydraulic cylinder.
5. a kind of sealing performance test method of flower bud shape sealing ring according to claim 2-4, it is characterised in that:The branch The external side of support platform (1) is equipped with dismountable cover plate (14) by screw (13).
6. a kind of sealing performance test method of flower bud shape sealing ring according to claim 1, it is characterised in that:The fixture block (19) upper end bottom is equipped with inclined-plane (20).
CN201810240917.7A 2018-03-22 2018-03-22 A kind of sealing performance test method of flower bud shape sealing ring Active CN108507721B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109580127A (en) * 2018-11-28 2019-04-05 杭州万顺氟胶科技有限公司 A kind of rubber product air tightness checking device

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CN203083784U (en) * 2013-02-20 2013-07-24 福州钜立机动车配件有限公司 Hydraulically compacted-type leakage testing device
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CN205317431U (en) * 2015-12-29 2016-06-15 浙江嘉兴格锐管业有限公司 Seal for pipe joints capability test device
CN206546242U (en) * 2017-01-13 2017-10-10 东莞市瑞拓五金橡塑有限公司 Rubber seal rings for seal device for detecting performance
CN206800985U (en) * 2017-06-13 2017-12-26 谢国令 A kind of assembly scaffold attachment means
CN108303215A (en) * 2018-03-22 2018-07-20 山西能源学院 A kind of sealing property testing equipment of hydraulic pressure flower bud shape sealing ring

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Publication number Priority date Publication date Assignee Title
CN201215543Y (en) * 2008-04-14 2009-04-01 中国石油大学(北京) Sealing ring test apparatus for acid gas field
CN101799347A (en) * 2010-01-29 2010-08-11 长沙天鹅工业泵股份有限公司 Pressure testing device for adjustable impeller sealing component
CN201944466U (en) * 2010-12-13 2011-08-24 厦门建霖工业有限公司 Pipe fitting connecting piece structure
CN102435402A (en) * 2011-12-01 2012-05-02 西北核技术研究所 Device for detecting leak rate of sealing ring
CN203083784U (en) * 2013-02-20 2013-07-24 福州钜立机动车配件有限公司 Hydraulically compacted-type leakage testing device
JP5627046B1 (en) * 2013-04-30 2014-11-19 寿樹 伊藤 Watertightness inspection method for buried pipes
CN204740107U (en) * 2015-03-26 2015-11-04 自贡市佳世特密封制品有限公司 O type sealing washer leak rate detection device
CN205317431U (en) * 2015-12-29 2016-06-15 浙江嘉兴格锐管业有限公司 Seal for pipe joints capability test device
CN206546242U (en) * 2017-01-13 2017-10-10 东莞市瑞拓五金橡塑有限公司 Rubber seal rings for seal device for detecting performance
CN206800985U (en) * 2017-06-13 2017-12-26 谢国令 A kind of assembly scaffold attachment means
CN108303215A (en) * 2018-03-22 2018-07-20 山西能源学院 A kind of sealing property testing equipment of hydraulic pressure flower bud shape sealing ring

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109580127A (en) * 2018-11-28 2019-04-05 杭州万顺氟胶科技有限公司 A kind of rubber product air tightness checking device

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Effective date of registration: 20191021

Address after: 311816 No.86, wupeng new village, Taozhu street, Zhuji City, Shaoxing City, Zhejiang Province

Applicant after: Zhou Zai Yun

Address before: 450000 718 2 unit 03, 6 Cui Zhu street, Zhengzhou high tech Industrial Development Zone, Zhengzhou, Henan

Applicant before: Zhengzhou ciumpe Electronic Technology Co., Ltd.

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Address after: No.80, Shangcheng Road, Jinan street, Zhuji City, Shaoxing City, Zhejiang Province

Patentee after: Zhou Zaiyun

Address before: 311816 No.86, wupeng new village, Taozhu street, Zhuji City, Shaoxing City, Zhejiang Province

Patentee before: Zhou Zaiyun

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Effective date of registration: 20220223

Address after: 311800 Yu Cun, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province

Patentee after: ZHUJI CHENGXIANG MACHINERY Co.,Ltd.

Address before: 311800 No.80 Shangcheng Road, Jinan street, Zhuji City, Shaoxing City, Zhejiang Province

Patentee before: Zhou Zaiyun

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Denomination of invention: A test method for sealing performance of bud seal ring

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Granted publication date: 20191122

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