CN103759006A - Internal expansion plugging device for cam shaft hole - Google Patents
Internal expansion plugging device for cam shaft hole Download PDFInfo
- Publication number
- CN103759006A CN103759006A CN201410040465.XA CN201410040465A CN103759006A CN 103759006 A CN103759006 A CN 103759006A CN 201410040465 A CN201410040465 A CN 201410040465A CN 103759006 A CN103759006 A CN 103759006A
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- pull bar
- end inner
- blocking device
- rear end
- 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.)
- Granted
Links
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to an internal expansion plugging device for a cam shaft hole. The internal expansion plugging device for the cam shaft hole comprises a pull rod, a rear end inner sleeve, inner sleeves, a front end inner sleeve, outer sleeves, O-shaped rings, a pin, a handle and springs, wherein a boss structure with the increased outer diameter is arranged at one end of the pull rod, the other end of the pull rod is movably connected with the handle through the pin, a cam structure is arranged at the position of connection between the handle and the pull rod, and the pull rod penetrates through the rear end inner sleeve, the first O-shaped ring, the first outer sleeve, the second O-shaped ring, the first inner sleeve, the third O-shaped ring, the second outer sleeve, the fourth O-shaped ring and the front end inner sleeve in sequence. According to the internal expansion plugging device for the cam shaft hole, the purpose of plugging an oil hole formed in the multi-gear cam shaft hole can be effectively achieved, and plugging is reliable.
Description
Technical field
The invention belongs to Engine Block Test field, specifically refer to interior swollen blocking device for a kind of camshaft hole.
Background technique
The amount of leakage of the water channel of engine cylinder-body, cylinder cap and assembly, oil duct, cavity is directly connected to the overall performance of motor, when the leakage rate of test water channel, oil duct and cavity, need hole and face that shutoff is relevant, then the whole inner chamber by shutoff is inflated, its leakage rate is detected with leak detector.When shutoff camshaft hole, if camshaft hole is as a whole or installed in the situation of camshaft cover, traditional shutoff mode is difficult to realize normal shutoff, therefore designs simple to operate, the reliable camshaft hole endoporus of a shutoff blocking device and just seems particularly important.
The camshaft hole majority of motor, at cylinder cap top, has oilhole in hole, when it being carried out to shutoff by prior art, camshaft cover is not generally installed, its shutoff scheme as shown in Figure 1 and Figure 2: in camshaft hole 1, have oilhole 5 to need shutoff; Push rod 4 promotes block head 3 under the effect of power source (being generally cylinder, oil cylinder or pneumohydraulic pressure-cylinder, not shown in FIG.), by polyurethane sealing plug 4 generation distortion under extruding of being fixed on block head 3, carrys out shutoff oilhole 5.
The major defect of prior art is:
1, existing camshaft hole endoporus blocking technology can normally be used in the situation that can cloth depositing block head and push rod, but in narrow space, in the situation that plug and push rod cannot cloth deposit, cannot use;
2, in single camshaft hole, have multiple holes to need shutoff, and need to form in the situation of a complete cavity, this technological scheme can be got up independent different holes shutoff, forms relatively independent cavity, therefore cannot use;
3, the shutoff of each camshaft hole needs an independent power source, if had in 5 camshaft holes, has oilhole to need shutoff, needs to have 5 power sources;
4, camshaft cover is being installed, or camshaft hole is an entirety, camshaft hole is in the situation of a complete cylindrical hole, and this scheme cannot be used;
5, prior art is difficult to realize manual shutoff.
Summary of the invention
The object of this invention is to provide a kind of camshaft hole endoporus blocking device, can be good at solving the shutoff of camshaft hole endoporus, comprise the problem of many grades of camshaft hole endoporus shutoff.
Technological scheme of the present invention is achieved through the following technical solutions:
A kind of interior swollen blocking device for camshaft hole, includes pull bar, rear end inner sleeve, inner sleeve, front end inner sleeve, overcoat, O type circle, pin, handle and spring;
One end of described pull bar is provided with the boss structure that external diameter expands, and the other end is flexibly connected with handle by pin; The position of described handle and pull bar joint is cam structure;
Described pull bar precedence is through rear end inner sleeve, O type circle, overcoat, O type circle, inner sleeve, O type circle, overcoat, O type circle and front end inner sleeve;
Being step-like structure and being axially provided with spring eye on the tube wall of this end away from pull bar one end of described rear end inner sleeve, for arranging spring;
The two end part of described inner sleeve are provided with step-like structure and on the tube wall at these two ends, are axially provided with spring eye, for spring is set;
Being step-like structure and being axially provided with spring eye on the tube wall of this end away from handle one end of described front end inner sleeve, for arranging spring;
The axial cross section of described overcoat is symmetrical T-shaped structure, and the internal diameter of intermediate portion matches with the external diameter of pull bar, and the internal diameter at its two ends matches with the external diameter of the step end at rear end inner sleeve, front end inner sleeve and inner sleeve two ends;
The internal diameter of described O type circle matches with the external diameter of the step end at rear end inner sleeve, front end inner sleeve and inner sleeve two ends respectively;
One end of the spring at described rear end inner sleeve, front end inner sleeve and inner sleeve two ends all connects with overcoat.
Described rear end inner sleeve and pull bar contact jaw are boss structure.
Boss structure and the pull bar contact jaw of described rear end inner sleeve are provided with groove, and the internal diameter of described groove matches with the boss structure of pull bar, and the boss structure of pull bar can be entered in groove.
The top of the boss structure of described pull bar is provided with chamfering.
The boss structure top of described rear end inner sleeve is provided with chamfering structure.
Described pull bar is hollow structure.
The end face of one end that is provided with handle of described pull bar and the center line out of plumb of pull bar.
The quantity of described inner sleeve is at least one, and the quantity of inner sleeve than the quantity of overcoat few one.
The spring eye at described rear end inner sleeve, front end inner sleeve and inner sleeve two ends has respectively 4, uniform centered by axis.
One end of the nearly handle of described front end inner sleeve is provided with boss structure, is used for determining the position on blocking device axially, and during work, boss left side is adjacent to workpiece surface.
Between overcoat and inner sleeve, inner sleeve, front end inner sleeve, be with limited location, when outer casing inner wall both sides are just adjacent to inner sleeve, inner sleeve, front end inner sleeve respectively, the distortion of O type circle reaches capacity, and prevents that O type circle from being squeezed bad by excessive pressure.
The invention has the beneficial effects as follows:
The present invention can effectively solve the problem of oilhole shutoff in many grades of camshaft holes, and shutoff is reliable.
Accompanying drawing explanation
Fig. 1 is existing blocking technology structural representation;
Fig. 2 is existing blocking technology schematic cross-section;
Fig. 3 is blocking device appearance assumption diagram of the present invention;
Fig. 4 is the axial, cross-sectional view of blocking device off working state of the present invention;
Fig. 5 is the axial, cross-sectional view of blocking device working state of the present invention;
Fig. 6 is the I place enlarged view in Fig. 4;
Fig. 7 is the II place enlarged view in Fig. 4;
Fig. 8 is the III place enlarged view in Fig. 5;
Fig. 9 is inner sleeve structural representation of the present invention;
Figure 10 is jacket structure schematic diagram of the present invention.
Embodiment
Describe by the following examples technological scheme of the present invention in detail, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
Described left side and right side is to describe as an example of the direction in accompanying drawing example in this application, and during towards accompanying drawing, left-hand is to being left side, and right-hand lay is right side; And in this application, rear end refers to left-hand end, and front end refers to right-hand end.
As shown in Figures 3 to 10, interior swollen blocking device for a kind of camshaft hole, includes pull bar, rear end inner sleeve, inner sleeve, front end inner sleeve, overcoat, O type circle, pin, handle and spring; Wherein rear end inner sleeve 7 respectively has one with 11 rear and front ends at pull bar 6 of front end inner sleeve, and inner sleeve 8 can have multiple according to the quantity of the camshaft hole of required shutoff;
One end of described pull bar is provided with the boss structure that external diameter expands, and the other end is flexibly connected with handle by pin; The position of described handle and pull bar joint is cam structure;
Described pull bar precedence is through rear end inner sleeve, O type circle, overcoat, O type circle, inner sleeve, O type circle, overcoat, O type circle and front end inner sleeve; In order to facilitate the processing of pull bar 6 and rear end inner sleeve 7, rear end inner sleeve 7 and pull bar 6, all as independent part, are conveniently processed.
Between rear end inner sleeve 7 and overcoat 9, inner sleeve 8 and overcoat 9, front end inner sleeve 11 and overcoat 9, can move freely, adopt Spielpassung H7/f6.
Between rear end inner sleeve 7, inner sleeve 8, overcoat 9, front end inner sleeve 11 and pull bar 6, can move freely, adopt Spielpassung H7/f6.
Rear end inner sleeve 7 coordinates with overcoat 9 and forms groove with overcoat 9, front end inner sleeve 11 with overcoat 9, inner sleeve 8, and O type circle 10 is arranged in groove, and 81,91 sizes that form depth of groove are identical with the diameter of section of O type circle 10; When not carrying out shutoff, as shown in Fig. 4, Fig. 6, Fig. 7, during state, recess width is identical with the diameter of section of O type circle 10.
Being step-like structure and being axially provided with 4 spring eyes on the tube wall of this end away from pull bar one end of described rear end inner sleeve, uniform centered by axis, for spring is set;
The two end part of described inner sleeve are provided with step-like structure and on the tube wall at these two ends, are axially provided with spring eye, and respectively there are 4 spring eyes 82 at two ends, inner sleeve left and right, uniform centered by axis, for spring is set;
Being step-like structure and being axially provided with spring eye on the tube wall of this end away from handle one end of described front end inner sleeve, spring eye has 4 holes, uniform centered by axis, for spring is set;
The axial cross section of described overcoat is symmetrical T-shaped structure, and the internal diameter of intermediate portion matches with the external diameter of pull bar, and the internal diameter at its two ends matches with the external diameter of the step end at rear end inner sleeve, front end inner sleeve and inner sleeve two ends;
The internal diameter of described O type circle matches with the external diameter of the step end at rear end inner sleeve, front end inner sleeve and inner sleeve two ends respectively;
One end of the spring at described rear end inner sleeve, front end inner sleeve and inner sleeve two ends all connects with the inwall of overcoat.
For weight reduction, pull bar 6 adopts hollow structure.Pull bar 6 left sides are boss structure, and right side is pin-and-hole, for mount pin 12 with fixed handle 13; Rear end inner sleeve 7, inner sleeve 8, overcoat 9, O type circle 10, front end inner sleeve 11, spring 14 are arranged on pull bar 6, and by pull bar 6 left side boss structures and handle 13 restriction sites, prevent that it from departing from pull bar 6.There is chamfering in pull bar 6 left sides, convenient by whole blocking device insertion camshaft hole.
Boss structure and the pull bar contact jaw of described rear end inner sleeve are provided with groove, and the internal diameter of described groove matches with the boss structure of pull bar, and the boss structure of pull bar can be entered in groove.The boss structure top of described rear end inner sleeve is provided with chamfering structure.
On the face contacting with camshaft hole 15 in rear end inner sleeve 7, inner sleeve 8, overcoat 9, front end inner sleeve 11 all with chamfering, so that the insertion that whole blocking device can be smooth and extract cam hole 15.
Front end inner sleeve 11 with boss, be used for determining the position on blocking device is axially, during work, boss left side is adjacent to workpiece surface.
The quantity of overcoat 9 determines by the gear number of the camshaft hole 15 of required shutoff, and each side has an O type circle 10 at overcoat 9, between every two overcoats 9, has an inner sleeve 8, i.e. the quantity of inner sleeve 8 than the quantity of overcoat 9 few 1.
The size of the cam mechanism of handle 13 and pull bar 6, rear end inner sleeve 7, inner sleeve 8, overcoat 9, front end inner sleeve 11 is through calculating design.When handle 13 is strained pull bar 6, overcoat 9 inwall both sides 92,93 are just adjacent to inner sleeve 7, inner sleeve 8, front end inner sleeve 11 respectively, to guarantee that all O type circles 10 can both produce distortion.
Between overcoat 9 and inner sleeve 7, inner sleeve 8, front end inner sleeve 11, be with limited location, when overcoat 9 inwall both sides 92,93 are just adjacent to inner sleeve 7, inner sleeve 8, front end inner sleeve 11 respectively, the distortion of O type circle reaches capacity, and prevents that O type circle from being squeezed bad by excessive pressure.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is by claims and be equal to and limit.
Claims (11)
1. an interior swollen blocking device for camshaft hole, is characterized in that: include pull bar, rear end inner sleeve, inner sleeve, front end inner sleeve, overcoat, O type circle, pin, handle and spring;
One end of described pull bar is provided with the boss structure that external diameter expands, and the other end is flexibly connected with handle by pin; The position of described handle and pull bar joint is cam structure;
Described pull bar precedence is through rear end inner sleeve, O type circle, overcoat, O type circle, inner sleeve, O type circle, overcoat, O type circle and front end inner sleeve;
Being step-like structure and being axially provided with spring eye on the tube wall of this end away from pull bar one end of described rear end inner sleeve, for arranging spring;
The two end part of described inner sleeve are provided with step-like structure and on the tube wall at these two ends, are axially provided with spring eye, for spring is set;
Being step-like structure and being axially provided with spring eye on the tube wall of this end away from handle one end of described front end inner sleeve, for arranging spring;
The axial cross section of described overcoat is symmetrical T-shaped structure, and the internal diameter of intermediate portion matches with the external diameter of pull bar, and the internal diameter at its two ends matches with the external diameter of the step end at rear end inner sleeve, front end inner sleeve and inner sleeve two ends;
The internal diameter of described O type circle matches with the external diameter of the step end at rear end inner sleeve, front end inner sleeve and inner sleeve two ends respectively;
One end of the spring at described rear end inner sleeve, front end inner sleeve and inner sleeve two ends all connects with overcoat.
2. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: described rear end inner sleeve and pull bar contact jaw are boss structure.
3. interior swollen blocking device for camshaft hole according to claim 2, it is characterized in that: boss structure and the pull bar contact jaw of described rear end inner sleeve are provided with groove, the internal diameter of described groove matches with the boss structure of pull bar, and the boss structure of pull bar can be entered in groove.
4. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: the top of the boss structure of described pull bar is provided with chamfering.
5. according to interior swollen blocking device for the camshaft hole described in claim 2 or 3, it is characterized in that: the boss structure top of described rear end inner sleeve is provided with chamfering structure.
6. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: described pull bar is hollow structure.
7. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: the end face of one end that is provided with handle of described pull bar and the center line out of plumb of pull bar.
8. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: the quantity of described inner sleeve is at least one, and the quantity of inner sleeve than the quantity of overcoat few one.
9. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: the spring eye at described rear end inner sleeve, front end inner sleeve and inner sleeve two ends has respectively 4, uniform centered by axis.
10. interior swollen blocking device for camshaft hole according to claim 1, is characterized in that: one end of the nearly handle of described front end inner sleeve is provided with boss structure, is used for determining the position on blocking device axially, and during work, boss left side is adjacent to workpiece surface.
Interior swollen blocking device for 11. camshaft holes according to claim 1, it is characterized in that: between overcoat and inner sleeve, inner sleeve, front end inner sleeve, be with limited location, when outer casing inner wall both sides are just adjacent to inner sleeve, inner sleeve, front end inner sleeve respectively, the distortion of O type circle reaches capacity, and prevents that O type circle from being squeezed bad by excessive pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040465.XA CN103759006B (en) | 2014-01-27 | 2014-01-27 | The interior swollen blocking device of a kind of camshaft hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040465.XA CN103759006B (en) | 2014-01-27 | 2014-01-27 | The interior swollen blocking device of a kind of camshaft hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103759006A true CN103759006A (en) | 2014-04-30 |
| CN103759006B CN103759006B (en) | 2015-09-16 |
Family
ID=50526294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410040465.XA Active CN103759006B (en) | 2014-01-27 | 2014-01-27 | The interior swollen blocking device of a kind of camshaft hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103759006B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595622A (en) * | 2015-01-06 | 2015-05-06 | 绵阳新晨动力机械有限公司 | Quick choke plug of pipeline |
| CN105485341A (en) * | 2016-01-15 | 2016-04-13 | 上海汽车变速器有限公司 | Multi-cavity compound seal blocking mechanism |
| CN105619163A (en) * | 2016-03-21 | 2016-06-01 | 中车青岛四方机车车辆股份有限公司 | Protecting device for threaded hole |
| CN106090217A (en) * | 2016-07-08 | 2016-11-09 | 安徽江淮汽车股份有限公司 | Interior swollen plugging device |
| CN107524486A (en) * | 2017-08-02 | 2017-12-29 | 合肥江淮朝柴动力有限公司 | Jam structure after a kind of camshaft |
| CN107860521A (en) * | 2017-12-05 | 2018-03-30 | 广西玉柴机器股份有限公司 | The plugging device of engine cylinder cap oil duct leak test |
| CN112536732A (en) * | 2020-12-09 | 2021-03-23 | 格力电器（武汉）有限公司 | Tool for plugging interface of closed container |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485342B (en) * | 2016-01-15 | 2017-08-08 | 上海汽车变速器有限公司 | Two-layer compound sealing blocking mechanism |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555740U (en) * | 1978-10-12 | 1980-04-15 | ||
| CN101672717A (en) * | 2009-08-28 | 2010-03-17 | 无锡海源重工股份有限公司 | Water pressure inner expansion plug device |
| CN201555693U (en) * | 2009-10-27 | 2010-08-18 | 重庆宗申发动机制造有限公司 | Stopping leak device |
| WO2010135114A2 (en) * | 2009-05-18 | 2010-11-25 | Baker Hughes Incorporated | Pressure testable tubing connection |
| CN101986120A (en) * | 2010-11-01 | 2011-03-16 | 力帆实业(集团)股份有限公司 | Engine airtight detection rapid plugging head |
| CN201858352U (en) * | 2010-11-01 | 2011-06-08 | 力帆实业(集团)股份有限公司 | Plugging head structure |
| CN202229886U (en) * | 2011-09-28 | 2012-05-23 | 成都瑞奇石油化工工程有限公司 | Pressure test device for heat exchange tubes |
| CN202693215U (en) * | 2012-07-12 | 2013-01-23 | 新兴重工湖北三六一一机械有限公司 | Hole sealing device for airtight test |
| CN103195925A (en) * | 2013-01-07 | 2013-07-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Venthole plugging device |
| CN203148631U (en) * | 2013-03-15 | 2013-08-21 | 南京斯凯汽车设备制造有限责任公司 | Double O-shaped ring rapid plugging head |
-
2014
- 2014-01-27 CN CN201410040465.XA patent/CN103759006B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555740U (en) * | 1978-10-12 | 1980-04-15 | ||
| WO2010135114A2 (en) * | 2009-05-18 | 2010-11-25 | Baker Hughes Incorporated | Pressure testable tubing connection |
| CN101672717A (en) * | 2009-08-28 | 2010-03-17 | 无锡海源重工股份有限公司 | Water pressure inner expansion plug device |
| CN201555693U (en) * | 2009-10-27 | 2010-08-18 | 重庆宗申发动机制造有限公司 | Stopping leak device |
| CN101986120A (en) * | 2010-11-01 | 2011-03-16 | 力帆实业(集团)股份有限公司 | Engine airtight detection rapid plugging head |
| CN201858352U (en) * | 2010-11-01 | 2011-06-08 | 力帆实业(集团)股份有限公司 | Plugging head structure |
| CN202229886U (en) * | 2011-09-28 | 2012-05-23 | 成都瑞奇石油化工工程有限公司 | Pressure test device for heat exchange tubes |
| CN202693215U (en) * | 2012-07-12 | 2013-01-23 | 新兴重工湖北三六一一机械有限公司 | Hole sealing device for airtight test |
| CN103195925A (en) * | 2013-01-07 | 2013-07-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Venthole plugging device |
| CN203148631U (en) * | 2013-03-15 | 2013-08-21 | 南京斯凯汽车设备制造有限责任公司 | Double O-shaped ring rapid plugging head |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595622A (en) * | 2015-01-06 | 2015-05-06 | 绵阳新晨动力机械有限公司 | Quick choke plug of pipeline |
| CN105485341A (en) * | 2016-01-15 | 2016-04-13 | 上海汽车变速器有限公司 | Multi-cavity compound seal blocking mechanism |
| CN105619163A (en) * | 2016-03-21 | 2016-06-01 | 中车青岛四方机车车辆股份有限公司 | Protecting device for threaded hole |
| CN106090217A (en) * | 2016-07-08 | 2016-11-09 | 安徽江淮汽车股份有限公司 | Interior swollen plugging device |
| CN106090217B (en) * | 2016-07-08 | 2018-10-30 | 安徽江淮汽车集团股份有限公司 | Interior swollen plugging device |
| CN107524486A (en) * | 2017-08-02 | 2017-12-29 | 合肥江淮朝柴动力有限公司 | Jam structure after a kind of camshaft |
| CN107524486B (en) * | 2017-08-02 | 2020-02-11 | 合肥云内动力有限公司 | Rear blocking piece structure of camshaft |
| CN107860521A (en) * | 2017-12-05 | 2018-03-30 | 广西玉柴机器股份有限公司 | The plugging device of engine cylinder cap oil duct leak test |
| CN112536732A (en) * | 2020-12-09 | 2021-03-23 | 格力电器（武汉）有限公司 | Tool for plugging interface of closed container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103759006B (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103759006A (en) | Internal expansion plugging device for cam shaft hole | |
| CN201651295U (en) | End part seal of high-pressure hydraulic system of steel tube pressure test equipment | |
| CN103016879A (en) | Fluid connector as well as plug and socket of fluid connector | |
| CN103723580B (en) | The adjustable reel of a kind of frame | |
| CN103148300A (en) | Quick inserting and drawing connector | |
| CN204002628U (en) | A kind of coal mine gallery drilling rig gyrator chuck | |
| CN105020322A (en) | Split type front shock absorber | |
| CN205599806U (en) | Pushing -type clamping device in improved generation for CNC tube bending machine | |
| CN205781367U (en) | A kind of pipeline fixing device | |
| CN204437108U (en) | A kind of modified model clutch master cylinder assembly | |
| CN203560645U (en) | Fast connector for operation under pressure | |
| CN209262227U (en) | A kind of two-gear transmission shifting system | |
| CN205244689U (en) | A end face seal structure and whirl compensator for whirl compensator | |
| CN210967878U (en) | Hydraulic numerical control knife handle with strong clamping force and without pressure release | |
| CN103362891B (en) | A kind of heat partition disc clearance support system of disc-type heat dispersing machine | |
| CN209800812U (en) | Valve core sealing structure in breaking valve for high-pressure hydrogenation machine | |
| CN106089850A (en) | The differential cylinder that a kind of inserted valve controls | |
| CN205382912U (en) | Automatic sliding sleeve device under oil gas development well | |
| CN210161616U (en) | Die capable of eliminating hose clearance | |
| CN207631369U (en) | A kind of compact tensioner | |
| CN220102427U (en) | Integrated hydraulic joint | |
| CN207292120U (en) | Steering hydraulic system | |
| CN214888058U (en) | Quick-change oil cylinder | |
| CN218266584U (en) | High-stability oil cylinder | |
| CN203412833U (en) | Anti-reversing valve for excavator rotary motor |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |