CN102777372B - Static-pressure sealing detection device of automobile water pump water seal - Google Patents
Static-pressure sealing detection device of automobile water pump water seal Download PDFInfo
- Publication number
- CN102777372B CN102777372B CN201210266137.2A CN201210266137A CN102777372B CN 102777372 B CN102777372 B CN 102777372B CN 201210266137 A CN201210266137 A CN 201210266137A CN 102777372 B CN102777372 B CN 102777372B
- Authority
- CN
- China
- Prior art keywords
- water pump
- seal
- upper cavity
- fixedly connected
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 title abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000002706 hydrostatic effect Effects 0.000 claims description 15
- 239000011120 plywood Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a static-pressure sealing detection device of an automobile water pump water seal. The static-pressure sealing detection device comprises a support mechanism, an opening/closing mechanism, a material pushing mechanism and a detection mechanism, wherein the opening/closing mechanism and the material pushing mechanism are both connected to the support mechanism, the material pushing mechanism is connected under the opening/closing mechanism, and the detection mechanism is connected with an opening/closing film mechanism. By adopting the structure, since the water pump water seal is subjected to the static-pressure sealing performance detection through the static-pressure sealing detection device, the outgoing quality of the water pump water seal is ensured, the abandonment of the whole water pump caused by the water leakage of the water pump water seal can be avoided, the service life of the water pump can be ensured, and the cost can also be greatly lowered.
Description
Technical field
The present invention relates to mechanical detection technical field, is specifically a kind of hydrostatic seal detection device of water pump seal of automobile.
Background technique
Water pump seal of automobile, is the quality of a kind of mechanical seal device, the sealability of water pump seal, directly affects performance during pump working.Water pump seal comprises stationary ring cover, moving ring sleeve, spring, bellows, stationary seal ring and rotary packing ring, moving ring sleeve be close-fitting on the rotating shaft, stationary ring is locked and fits on the pump housing, by the effect making water pump seal play sealing that is tightly connected of stationary seal ring and rotary packing ring.In other words, water pump seal is fixedly connected on water pump, therefore, sealing between stationary seal ring and rotary packing ring is considerable, if blow-by, water pump seal will produce water leakage phenomenon, like this, whole water pump will be scrapped because of leaking of water pump seal, needs to change whole water pump, considerably increases cost.Therefore, the sealability detection before using water pump seal is very important, and wherein just includes and detects the hydrostatic seal of water pump seal.But, in prior art, the hydrostatic seal of water pump seal is detected and is difficult to realize.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of hydrostatic seal detection device that can detect the water pump seal of automobile of hydrostatic seal under water pump seal normality.
For solving the problems of the technologies described above, the hydrostatic seal detection device of water pump seal of automobile provided by the invention, it comprises bracket institution, open-and-close mechanism, material jacking mechanism and feeler mechanism, described open-and-close mechanism, material jacking mechanism are all connected on bracket institution, material jacking mechanism is connected to below open-and-close mechanism, and feeler mechanism is connected with open-and-close mechanism.Described bracket institution comprises base plate, vertical rack and horizontal stand, described base plate connects on the table, described vertical rack is two pieces, and under one end of every block vertical rack is fixedly connected on base plate, the other end is fixedly connected on the two ends of horizontal stand respectively.Described open-and-close mechanism comprises upper plate, upper cavity, lower chamber, lower plate, guide pillar, top board, folding cylinder, spring and spring seat; Under described folding cylinder is fixedly connected on horizontal stand, the piston rod in folding cylinder is connected with the center of top board; One end of described guide pillar is fixedly connected with top board, and the other end is fixedly connected with upper plate, and simultaneously the middle part of guide pillar and base plate and lower plate are slidably connected; Described upper cavity is fixedly connected on upper plate lower end surface, and lower chamber is fixedly connected on lower plate upper-end surface; Described lower chamber cylindrical wall is embedded with the first seal ring, and when upper plate and lower plate plywood, upper cavity is sealed and matched by the first seal ring and lower chamber; Detected water pump seal is between upper cavity and lower chamber, and the moving ring sleeve in water pump seal is tightly connected by the second seal ring with upper cavity, and stationary ring cover and lower chamber are tightly connected by the 3rd seal ring; The upper end of described spring is connected with upper cavity interference fit, and lower end is connected with spring seat interference fit, and the lower end surface of spring seat and the upper-end surface of water pump seal push against.
Described material jacking mechanism comprises material ejection cylinder, sleeve, liftout axle, volute spring and catch, and the lower end of described material ejection cylinder is fixedly connected with base plate, and the lower end of sleeve is positioned at above material ejection cylinder, and the upper end of sleeve is fixedly connected with lower plate; Described catch is fixedly connected on the lower end of liftout axle, and volute spring is socketed in outside liftout axle, and the smaller diameter end of volute spring and catch push against, and larger diameter end and lower plate push against; Described liftout axle upper end is positioned at lower chamber and is positioned at the below of water pump seal, and meanwhile, liftout axle and lower chamber, lower plate are slidably matched, and are tightly connected between liftout axle and lower chamber by the 4th seal ring.
Described feeler mechanism comprises tank, suction tude and steam outlet pipe, and described suction tude one end is communicated with source of the gas, and the other end to be connected with upper cavity by joint and to be communicated with part beyond water pump seal in upper cavity inner chamber; One end of described steam outlet pipe to be connected with upper cavity by joint and to be communicated with the inside of water pump seal in upper cavity inner chamber, and the other end is communicated with tank.
Also be provided with buffer stopper between upper cavity and lower chamber in described open-and-close mechanism, this buffer stopper close-fitting is connected in upper cavity.
The middle part of described guide pillar and base plate and lower plate are slidably connected and refer to, the joint in base plate and lower plate is all fixedly connected with linear bearing by circlip for shaft, and guide pillar is slidably connected in linear bearing.
After adopting above structure, the present invention compared with prior art, has the following advantages:
1) owing to carrying out hydrostatic seal Performance Detection by this device to water pump seal, ensure that the outgoing of water pump seal, avoid because the scrapping of whole the water pump causing of leaking of water pump seal, therefore, the working life of water pump can be ensured, also greatly reduce cost;
2) spring arranged in upper cavity and spring seat, because water pump seal is formed by multiple part combination, in order to when after water pump seal detection, upper cavity is opened, overcome the friction between the moving ring sleeve of water pump seal and upper cavity, be equivalent to there is a downward active force to the moving ring sleeve of water pump seal, make not scatter between each part of whole water pump seal, ensure that the integrity of the water pump seal when discharging;
3) between upper cavity and lower chamber, being provided with buffer stopper, is that when buffer stopper encounters lower chamber end face, upper cavity is with regard to stop motion in order to upper cavity has a spacing effect when moving downward on the one hand; Be on the other hand the effect playing a buffering, avoid occurring upper cavity and lower chamber very stiff and demanding thus the noise produced and damage;
4) the 4th seal ring that the second seal ring arranged between the moving ring sleeve of water pump seal and upper cavity, the stationary ring of water pump seal overlap the 3rd seal ring arranged between lower chamber, the first seal ring arranged between lower chamber and upper cavity and arrange between liftout axle and lower chamber is all to ensure that upper cavity and lower chamber close up the sealing of rear internal cavities.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hydrostatic seal detection device of water pump seal of automobile of the present invention.
Fig. 2 is the partial enlargement structural representation of Fig. 1.
Wherein: 1, tank; 2, steam outlet pipe; 3, suction tude; 4, upper plate; 5, upper cavity; 6, buffer stopper; 7, guide pillar; 8, the first seal ring; 9, linear bearing; 10, circlip for shaft; 11, lower plate; 12, sleeve; 13, material ejection cylinder; 14, volute spring; 15, liftout axle; 16, catch; 17, the 4th seal ring; 18, lower chamber; 19, the 3rd seal ring; 20, water pump seal; 21, the second seal ring; 22, spring seat; 23, spring; 24, base plate; 25, vertical rack; 26, top board; 27, horizontal stand; 28, folding cylinder.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
From the hydrostatic seal structure of the detecting device schematic diagram of the water pump seal of automobile of the present invention shown in Fig. 1 and Fig. 2; it comprises bracket institution, open-and-close mechanism, material jacking mechanism and feeler mechanism; described open-and-close mechanism, material jacking mechanism are all connected on bracket institution; material jacking mechanism is connected to below open-and-close mechanism, and feeler mechanism is connected with clasp mould mechanism.
Described bracket institution comprises base plate 24, vertical rack 25 and horizontal stand 27, described base plate 24 connects on the table, described vertical rack 25 is two pieces, and one end of every block vertical rack 25 is fixedly connected on base plate 24 times, and the other end is fixedly connected on the two ends of horizontal stand 27 respectively.
Described open-and-close mechanism comprises upper plate 4, upper cavity 5, lower chamber 18, lower plate 11, guide pillar 7, top board 26, folding cylinder 28, spring 23 and spring seat 22.Described folding cylinder 28 is fixedly connected on horizontal stand 27 times, and the piston rod in folding cylinder 28 is connected with the center of top board 26.One end of described guide pillar 7 is fixedly connected with top board 26, and the other end is fixedly connected with upper plate 4, and simultaneously the middle part of guide pillar 7 and base plate 24 and lower plate 11 are slidably connected.Described upper cavity 5 is fixedly connected on upper plate 4 lower end surface, and lower chamber 18 is fixedly connected on lower plate 11 upper-end surface.Described lower chamber 18 cylindrical wall is embedded with the first seal ring 8, and when upper plate 4 and lower plate 11 plywood, upper cavity 5 is sealed and matched with lower chamber 18 by the first seal ring 8.Detected water pump seal 20 is between upper cavity 5 and lower chamber 18, and the moving ring sleeve in water pump seal 20 is tightly connected by the second seal ring 21 with upper cavity 5, and stationary ring cover and lower chamber 18 are tightly connected by the 3rd seal ring 19.The upper end of described spring 23 is connected with upper cavity 5 interference fit, and lower end is connected with spring seat 22 interference fit, and the lower end surface of spring seat 22 and the upper-end surface of water pump seal 20 push against.
Described material jacking mechanism comprises material ejection cylinder 13, sleeve 12, liftout axle 15, volute spring 14 and catch 16, the lower end of described material ejection cylinder 13 is fixedly connected with base plate 24, the lower end of sleeve 12 is positioned at above material ejection cylinder 13, and the upper end of sleeve 12 is fixedly connected with lower plate 11.Described catch 16 is fixedly connected on the lower end of liftout axle 15, and volute spring 14 is socketed in outside liftout axle 15, and the smaller diameter end of volute spring 14 and catch 16 push against, and larger diameter end and lower plate 11 push against.Described liftout axle 15 upper end is positioned at lower chamber 18 and is positioned at the below of water pump seal 20, and meanwhile, liftout axle 15 and lower chamber 18, lower plate 11 are slidably matched, and are tightly connected between liftout axle 15 and lower chamber 18 by the 4th seal ring 17.
Described feeler mechanism comprises tank 1, suction tude 3 and steam outlet pipe 2, and described suction tude 3 one end is communicated with source of the gas, and the other end to be connected with upper cavity 5 by joint and to be communicated with part beyond water pump seal 20 in upper cavity 5 inner chamber.One end of described steam outlet pipe 2 to be connected with upper cavity 5 by joint and to be communicated with the inside of water pump seal 20 in upper cavity 5 inner chamber, and the other end is communicated with tank 1.
Also be provided with buffer stopper 6 between upper cavity 5 and lower chamber 18 in described open-and-close mechanism, this buffer stopper 6 close-fitting is connected in upper cavity 5.
The middle part of described guide pillar 7 and base plate 24 and lower plate 11 are slidably connected and refer to, the joint in base plate 24 and lower plate 11 is all fixedly connected with linear bearing 9 by circlip for shaft 10, and guide pillar 7 is slidably connected in linear bearing 9.
Working principle of the present invention is as follows: after folding cylinder 28 air inlet, piston rod in folding cylinder 28 up moves, promoting top board 26 drives guide pillar 7 to move up, because lower plate 11 is fixedly connected with base plate 24, therefore promote upper plate 4 to move up, now upper cavity 5 and lower chamber 18 are thrown off completely; Put into detected water pump seal 20, the stationary ring of water pump seal 20 is tightly connected with lower chamber 18 by the 3rd seal ring 19, and after putting well, folding cylinder 28 is given vent to anger, piston rod moves down, and the rotating ring of water pump seal 20 is tightly connected with upper cavity 5 by the second seal ring 21; Then upper plate 4 and upper cavity 5 move down, until upper cavity 5 and lower chamber 18 close up, are now tightly connected by the first seal ring 8 between lower chamber 18 and upper cavity 5.Source of the gas connected by joint, gas enters in upper cavity 5 from suction tude 3, now, if the good seal of water pump seal 20, the gas in upper cavity 5 can't enter the inside of water pump seal 20, in other words, gas can not run in tank 1 from steam outlet pipe 2, therefore there will not be bubble in tank 1, this represents, the sealing of detected water pump seal 20 is qualified; Otherwise if there is bubble in tank 1, be because the inside of water pump seal 20 leaks gas, this represents, the sealing of detected water pump seal 20 is underproof.After detection, folding cylinder 28 starts action again, and upper cavity 5 and lower chamber 18 are thrown off completely, joint material ejection cylinder 13 starts action, and the piston rod of material ejection cylinder 13 up moves, until continuation is up pushed up after encountering liftout axle 15, water pump seal 20 is ejected, completes a whole set of detection action with this.
Claims (5)
1. the hydrostatic seal detection device of a water pump seal of automobile, it is characterized in that: it comprises bracket institution, open-and-close mechanism, material jacking mechanism and feeler mechanism, described open-and-close mechanism, material jacking mechanism are all connected on bracket institution, material jacking mechanism is connected to below open-and-close mechanism, and feeler mechanism is connected with open-and-close mechanism; Described bracket institution comprises base plate (24), vertical rack (25) and horizontal stand (27), described base plate (24) connects on the table, described vertical rack (25) is two pieces, under one end of every block vertical rack (25) is fixedly connected on base plate (24), the other end is fixedly connected on the two ends of horizontal stand (27) respectively; Described open-and-close mechanism comprises upper plate (4), upper cavity (5), lower chamber (18), lower plate (11), guide pillar (7), top board (26), folding cylinder (28), spring (23) and spring seat (22); Under described folding cylinder (28) is fixedly connected on horizontal stand (27), the piston rod in folding cylinder (28) is connected with the center of top board (26); One end of described guide pillar (7) is fixedly connected with top board (26), the other end is fixedly connected with upper plate (4), and simultaneously the middle part of guide pillar (7) and base plate (24) and lower plate (11) are slidably connected; Described upper cavity (5) is fixedly connected on upper plate (4) lower end surface, and lower chamber (18) is fixedly connected on lower plate (11) upper-end surface; Described lower chamber (18) cylindrical wall is embedded with the first seal ring (8), and when upper plate (4) and lower plate (11) plywood, upper cavity (5) is sealed and matched by the first seal ring (8) and lower chamber (18); Detected water pump seal (20) is positioned between upper cavity (5) and lower chamber (18), and the moving ring sleeve in water pump seal (20) and upper cavity (5) are tightly connected by the second seal ring (21), stationary ring cover is tightly connected by the 3rd seal ring (19) with lower chamber (18); The upper end of described spring (23) is connected with upper cavity (5) interference fit, lower end is connected with spring seat (22) interference fit, and the lower end surface of spring seat (22) and the upper-end surface of water pump seal (20) push against.
2. the hydrostatic seal detection device of water pump seal of automobile according to claim 1, it is characterized in that: described material jacking mechanism comprises material ejection cylinder (13), sleeve (12), liftout axle (15), volute spring (14) and catch (16), the lower end of described material ejection cylinder (13) is fixedly connected with base plate (24), the lower end of sleeve (12) is positioned at material ejection cylinder (13) top, and the upper end of sleeve (12) is fixedly connected with lower plate (11); Described catch (16) is fixedly connected on the lower end of liftout axle (15), volute spring (14) is socketed in liftout axle (15) outward, and the smaller diameter end of volute spring (14) and catch (16) push against, larger diameter end and lower plate (11) push against; Described liftout axle (15) upper end is positioned at lower chamber (18) and is positioned at the below of water pump seal (20), simultaneously, liftout axle (15) and lower chamber (18), lower plate (11) are slidably matched, and are tightly connected between liftout axle (15) and lower chamber (18) by the 4th seal ring (17).
3. the hydrostatic seal detection device of water pump seal of automobile according to claim 1, it is characterized in that: described feeler mechanism comprises tank (1), suction tude (3) and steam outlet pipe (2), described suction tude (3) one end is communicated with source of the gas, and the other end to be connected with upper cavity (5) by joint and to be communicated with part beyond water pump seal (20) in upper cavity (5) inner chamber; One end of described steam outlet pipe (2) to be connected with upper cavity (5) by joint and to be communicated with the inside of water pump seal (20) in upper cavity (5) inner chamber, and the other end is communicated with tank (1).
4. the hydrostatic seal detection device of water pump seal of automobile according to claim 1, it is characterized in that: be also provided with buffer stopper (6) between upper cavity (5) and lower chamber (18) in described open-and-close mechanism, this buffer stopper (6) close-fitting is connected in upper cavity (5).
5. the hydrostatic seal detection device of water pump seal of automobile according to claim 1, it is characterized in that: the middle part of described guide pillar (7) and base plate (24) and lower plate (11) are slidably connected and refer to, joint in base plate (24) and lower plate (11) is all fixedly connected with linear bearing (9) by circlip for shaft (10), and guide pillar (7) is slidably connected in linear bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266137.2A CN102777372B (en) | 2012-07-30 | 2012-07-30 | Static-pressure sealing detection device of automobile water pump water seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266137.2A CN102777372B (en) | 2012-07-30 | 2012-07-30 | Static-pressure sealing detection device of automobile water pump water seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102777372A CN102777372A (en) | 2012-11-14 |
| CN102777372B true CN102777372B (en) | 2015-02-18 |
Family
ID=47122424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210266137.2A Active CN102777372B (en) | 2012-07-30 | 2012-07-30 | Static-pressure sealing detection device of automobile water pump water seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102777372B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406771B (en) * | 2013-07-22 | 2015-05-27 | 芜湖陀曼精机科技有限公司 | Static-pressure sealing structure of lower surface of vertical high-precision working table |
| CN110470556B (en) * | 2019-07-31 | 2022-03-25 | 西安理工大学 | A comprehensive testing device for automobile water seal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383351A (en) * | 1993-11-12 | 1995-01-24 | Atlantic Richfield Company | Pump seal test apparatus and method |
| JPH0850076A (en) * | 1994-08-05 | 1996-02-20 | Press Kogyo Kk | Apparatus and method for diagnosing leakage of mechanical seal |
| CN201051040Y (en) * | 2007-01-31 | 2008-04-23 | 丹东热工仪表有限公司 | Leakage detection device |
| CN201237546Y (en) * | 2008-07-04 | 2009-05-13 | 沈阳北碳密封有限公司 | High temperature fluid machine rotating shaft mechanical seal test apparatus |
| CN201314854Y (en) * | 2008-10-27 | 2009-09-23 | 潍坊盛瑞动力机械科技有限公司 | Water seal air tightness detection device |
| CN201464132U (en) * | 2009-08-21 | 2010-05-12 | 石家庄强大密封有限公司 | Mechanical seal dynamic and static pressure test device |
| WO2012050432A2 (en) * | 2010-10-11 | 2012-04-19 | Bin Zainal Abidin Azhar | Mechanical seal static air test apparatus |
| CN202673657U (en) * | 2012-07-30 | 2013-01-16 | 宁波伏尔肯机械密封件制造有限公司 | Static seal detection device of automobile water pump water seal |
-
2012
- 2012-07-30 CN CN201210266137.2A patent/CN102777372B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383351A (en) * | 1993-11-12 | 1995-01-24 | Atlantic Richfield Company | Pump seal test apparatus and method |
| JPH0850076A (en) * | 1994-08-05 | 1996-02-20 | Press Kogyo Kk | Apparatus and method for diagnosing leakage of mechanical seal |
| CN201051040Y (en) * | 2007-01-31 | 2008-04-23 | 丹东热工仪表有限公司 | Leakage detection device |
| CN201237546Y (en) * | 2008-07-04 | 2009-05-13 | 沈阳北碳密封有限公司 | High temperature fluid machine rotating shaft mechanical seal test apparatus |
| CN201314854Y (en) * | 2008-10-27 | 2009-09-23 | 潍坊盛瑞动力机械科技有限公司 | Water seal air tightness detection device |
| CN201464132U (en) * | 2009-08-21 | 2010-05-12 | 石家庄强大密封有限公司 | Mechanical seal dynamic and static pressure test device |
| WO2012050432A2 (en) * | 2010-10-11 | 2012-04-19 | Bin Zainal Abidin Azhar | Mechanical seal static air test apparatus |
| CN202673657U (en) * | 2012-07-30 | 2013-01-16 | 宁波伏尔肯机械密封件制造有限公司 | Static seal detection device of automobile water pump water seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102777372A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102777372B (en) | Static-pressure sealing detection device of automobile water pump water seal | |
| CN108151977A (en) | A kind of liquid-level indicator type is in liquid gas storage tank air-tightness detection device | |
| CN106197860B (en) | A kind of ceramic pedestal pan leak-testing apparatus and method | |
| CN106706228B (en) | Song body leak-checking apparatus | |
| CN202673657U (en) | Static seal detection device of automobile water pump water seal | |
| CN111551323B (en) | Tightness detection device and method for hydraulic torque converter | |
| CN102706517A (en) | Rack for detecting sealing performance of stern shaft sealing device | |
| CN203627395U (en) | Rodless cylinder | |
| CN110044551B (en) | Gas tightness detection device for joint surface of pump body shaft hole and bush of fuel injection pump | |
| CN209280215U (en) | One kind being used for plastic bag sealing detection device | |
| CN115855380A (en) | Take pressure and environmental simulation's rerum natura testing arrangement | |
| CN110702334A (en) | Device and method for detecting sealing performance of electronic product | |
| CN205138743U (en) | BPLD muffler casing body examination neglected loading is put | |
| CN202590003U (en) | Feed door opening device for rubber plug cleaning, sterilization and drying all-in-one | |
| CN105387978A (en) | Airtightness tester for vacuum pump assembly line | |
| CN209673307U (en) | Fuel injection pump pump housing axis hole and bushing joint face air-tightness detection device | |
| CN204101395U (en) | A kind of special atmosphere flexible encapsulated on reciprocating friction abrasion tester and control device | |
| CN203686162U (en) | Novel ultrahigh vacuum valve | |
| CN116380360A (en) | A cylinder air tightness detection device | |
| CN106840555B (en) | Hydraulic cylinder air tightness detection apparatus | |
| CN210097336U (en) | Suck-back prevention integrated fixing device for absorption bottle | |
| CN202126336U (en) | Testing machine with rotating casing for muddy water proof performance of seal ring | |
| CN201844909U (en) | Tightness test machine for remanufacturing oil bottom case and pressure limiting valve | |
| CN203719845U (en) | Helium detection device | |
| CN204004753U (en) | The isolators of freeze dryer main valve valve rod and online leak detecting device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: Ningbo fu'erken Ceramic Technology Co. Ltd. Address before: 315104 No. 666 Jin Yuan Road, Yinzhou District investment center, Zhejiang, Ningbo Patentee before: Ningbo Vulcan Mechanical Seals Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: Ningbo Vulcan Polytron Technologies Inc Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: Ningbo fu'erken Ceramic Technology Co. Ltd. |
|
| CP01 | Change in the name or title of a patent holder |