CN107989936A - A kind of automotive brake with heat sinking function - Google Patents
A kind of automotive brake with heat sinking function Download PDFInfo
- Publication number
- CN107989936A CN107989936A CN201711209872.9A CN201711209872A CN107989936A CN 107989936 A CN107989936 A CN 107989936A CN 201711209872 A CN201711209872 A CN 201711209872A CN 107989936 A CN107989936 A CN 107989936A
- Authority
- CN
- China
- Prior art keywords
- brake
- block
- brake block
- sleeve
- air blast
- 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
- 238000009826 distribution Methods 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
Abstract
A kind of automotive brake with heat sinking function, including brake disc and caliper, caliper includes brake holder, the first Brake Block, the second Brake Block, brake block and hydraulic package, brake holder is equipped with leading truck, first Brake Block and the second Brake Block are slidably mounted on leading truck, hydraulic package is connected between the first Brake Block and the second Brake Block, and promotes both reverse movements, brake block is braked with brake disc；First Brake Block is equipped with through hole, through hole is equipped with the blower chamber between the first Brake Block and the second Brake Block, moved towards when releasing braking by the first Brake Block and the second Brake Block, compress blower chamber and simultaneously discharge the air in blower chamber to be cooled down to brake disc by through hole.Air can be blown to brake disc and radiated by the present invention by setting blower chamber in braking, can cool down the hot-air suction near brake disc when releasing and braking, efficiently solve the heat dissipation problem of brake disc.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of automotive brake with heat sinking function.
Background technology
At present, the disk brake of existing automobile promotes brake block to move by hydraulic system in braking by hydraulic oil,
Repeatedly rub realization braking with brake disc.At present, the disk brake of existing automobile is braked in braking by HYDRAULIC CONTROL SYSTEM
Block repeatedly rubs with brake disc and realizes braking, all can be due to friction generation high temperature, shadow when each brake block and brake disc rub
Ring the service life of brake.And brake block easily produces abrasion in movement repeatedly and causes hydraulic oil to be revealed, and holds very much
It is also easy to produce security risk.
The content of the invention
The present invention provides a kind of automotive brake with heat sinking function to solve the above problems.
The present invention above-mentioned purpose technical scheme is that：A kind of automobile system with heat sinking function
Dynamic device, including brake disc and caliper, the caliper include brake holder, the first Brake Block, the second Brake Block, brake block and
Hydraulic package, the brake holder are equipped with leading truck, and first Brake Block and second Brake Block are slidably mounted on institute
State on leading truck, first Brake Block is arranged on the inner side of brake disc and is connected with the brake block positioned at homonymy, described second
Brake Block is arranged on the inner side of first Brake Block, and the upper end of second Brake Block extends above first Brake Block
It is connected to the outside of brake disc, and with the brake block on the outside of brake disc；The hydraulic package is connected to first braking
Between seat and second Brake Block, and both reverse movements are promoted, the brake block is braked with the brake disc；Described
One Brake Block is equipped with the through hole of face brake disc, and the through hole is equipped with positioned at first Brake Block and second Brake Block
Between blower chamber, moved towards when releasing and braking by first Brake Block and second Brake Block, compression institute
State blower chamber and discharge the air in the blower chamber to be cooled down to brake disc by through hole.
Preferably, the blower chamber includes the air blast cylinder that is fixed on first Brake Block and is fixed in described the
Air blast piston on two Brake Blocks, the through hole are connected with the barrel chamber of the air blast cylinder, and the air blast piston stretches into the air blast
In cylinder, by the relative movement of the air blast piston and the air blast cylinder, the air in the air blast cylinder is set to be arranged from the through hole
Go out, or outside air is pumped into the air blast cylinder by the through hole.
Preferably, the outside of the air blast cylinder is equipped with heat sink, the heat sink circle distribution is on the air blast cylinder.
It is located at the air blast preferably, being more than positioned at the gap of the two neighboring heat sink on the air blast cylinder top
The gap of the two neighboring heat sink of cylinder lower part, the upper surface of first Brake Block and the top of second Brake Block
Form the passage easy to air flow.
Preferably, the circumferential edge of the brake disc, along equipped with the straight slot being unidirectionally open, the straight slot is around the braking
Disk circumference uniform distribution, and the straight slot is directed toward its center of rotation by the edge of the brake disc；The brake disc, it is close to described logical
The side in hole is equipped with heat emission hole, and the heat emission hole is connected with the straight slot.
Preferably, the lower end of first Brake Block, which is equipped with, is sleeved on the first sliding block on the leading truck, described the
The lower end of two Brake Blocks is equipped with the second sliding block being sleeved on the leading truck, and the hydraulic package is connected to first sliding block
Between second sliding block.
Preferably, the leading truck is equipped with limited block, wherein a limited block is located at the outside of first sliding block, separately
One limited block is located at the inner side of second sliding block, the limited block and first sliding block and the limited block and described the
The resetting spring for making first sliding block be moved towards with second sliding block is equipped between two sliding blocks.
Preferably, first sliding block is equipped with the first sleeve, the second sleeve that second sliding block is equipped with is described
First set jacket casing is connected on the outside of the second sleeve, and the second sleeve is hollow structure, and the hydraulic package is arranged on institute
State in second sleeve, one end of the hydraulic package is connected on first sleeve, and the other end is connected to the second sleeve
On.
Preferably, first sleeve, which is connected with, promotes first sleeve and the second sleeve phase in opposite direction
To mobile pneumatic system.
Preferably, the hydraulic package includes cylinder body and the push rod being plugged in the cylinder body, the cylinder body is connected with
The hydraulic system for promoting the push rod to be moved in opposite direction with the cylinder body, first sleeve promote the second sleeve to move
Dynamic direction promotes the direction of the push rod movement opposite with the cylinder body.
Beneficial effects of the present invention：Air can be blown to brake disc by the present invention by setting blower chamber in braking
Radiate, the hot-air suction near brake disc can be cooled down when releasing and braking, efficiently solve brake disc
Heat dissipation problem.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is the structure diagram of hydraulic package in the embodiment of the present invention；
In figure：4- calipers, the first Brake Blocks of 401-, 4011- through holes, the second Brake Blocks of 402-, 4021- air holes, 403- systems
Motion block, 404- brake holders, 405- leading trucks, the first sliding blocks of 406-, the second sliding blocks of 407-, 408- Pneumatic assemblies, 4081- first
Sleeve, the first sleeves of 4082-, 409- hydraulic packages, 4091- cylinder bodies, 4092- push rods, 410- blower chambers, 4101- air blast cylinders,
4102- air blast pistons, 4103- heat sinks, 411- resetting springs, 5- brake discs, 501- heat emission holes, 502- straight slots.
Embodiment
With reference to attached drawing, the present invention is described in further detail.This specific embodiment is only explanation of the invention,
It is not limitation of the present invention, and those skilled in the art, can be as needed to this implementation after this specification is read
Example makes the modification of no creative contribution, but as long as all being protected in scope of the presently claimed invention be subject to Patent Law.
Embodiment：As depicted in figs. 1 and 2, a kind of automotive brake with heat sinking function, including brake disc 5 and braking
Pincers 4, the caliper 4 includes brake holder 404, the first Brake Block 401, the second Brake Block 402, brake block 403 and hydraulic pressure group
Part 409, the brake holder 404 are equipped with leading truck 405, and first Brake Block 401 and second Brake Block 402 slide
On the leading truck 405, first Brake Block 401 be arranged on the inner side of brake disc 5 and with the braking positioned at homonymy
Block 403 connects, and second Brake Block 402 is arranged on the inner side of first Brake Block 401, second Brake Block 402
Upper end extends to the outside of brake disc 5 above first Brake Block 401, and with the brake block 403 positioned at the outside of brake disc 5
Connection；The hydraulic package 409 is connected between first Brake Block 401 and second Brake Block 402, and promotes both
Reverse movement, makes the brake block 403 be braked with the brake disc 5；First Brake Block 401 is equipped with face brake disc 5
Through hole 4011, the air blast being equipped with the through hole 4011 between first Brake Block 401 and second Brake Block 402
Component 410, is moved towards when releasing braking by first Brake Block 401 and second Brake Block 402, described in compression
Blower chamber 410 is simultaneously discharged the air in the blower chamber 410 to be cooled down to brake disc 5 by through hole 4011.
As shown in Figure 1, blower chamber 410 includes being fixed in air blast cylinder 4101 on first Brake Block 401 and affixed
Air blast piston 4102 on second Brake Block 402, the through hole 4011 are connected with the barrel chamber of the air blast cylinder 4101, institute
Air blast piston 4102 is stated to stretch into the air blast cylinder 4101, it is opposite with the air blast cylinder 4101 by the air blast piston 4102
It is mobile, the air in the air blast cylinder 4101 is discharged from the through hole 4011, or outside air is passed through the through hole 4011
It is pumped into the air blast cylinder 4101.The outside of air blast cylinder 4101 is equipped with heat sink 4103, and 4103 circle distribution of heat sink exists
On the air blast cylinder 4101.It is more than positioned at the gap of the two neighboring heat sink 4103 on 4101 top of air blast cylinder and is located at
The gap of the two neighboring heat sink 4103 of 4101 lower part of air blast cylinder, the upper surface of first Brake Block 401 with
Passage easy to air flow is formed at the top of second Brake Block 402.The top of second Brake Block 402 is equipped with positioned at heat dissipation
The air hole 4021 of the top of piece 4103, air hole 4021 run through the second Brake Block 402.
The circumferential edge of brake disc 5 is along equipped with the straight slot 502 being unidirectionally open, and the straight slot 502 is around 5 circumference of brake disc
It is uniformly distributed, and the straight slot 502 is directed toward its center of rotation by the edge of the brake disc 5；The brake disc 5, it is close to described logical
The side in hole 4011 is equipped with heat emission hole 501, and the heat emission hole 501 is connected with the straight slot 502.
As depicted in figs. 1 and 2, the lower end of the first Brake Block 401 is equipped with the first sliding block being sleeved on the leading truck 405
406, the lower end of second Brake Block 402 is equipped with the second sliding block 407 being sleeved on the leading truck 405, the hydraulic pressure group
Part 409 is connected between first sliding block 406 and second sliding block 407.Between first sliding block 406 and the second sliding block 407
Equipped with Pneumatic assembly 408, it include the first sleeve 4081 being arranged on the first sliding block 406 and on the second sliding block 407 the
Two sleeves 4082, first sleeve 4081 are socketed in the outside of the second sleeve 4082, and the first sleeve 4081, which is connected with, to be pushed away
The pneumatic system that first sleeve 4081 relatively moves in opposite direction with the second sleeve 4082 is moved, pneumatic system includes
Air pump and air pipe line, air pipe line are connected between the first sleeve 4081 and air pump.Second sleeve 4082 is hollow knot
Structure, the hydraulic package 409 are arranged in the second sleeve 4082, and one end of the hydraulic package 409 is connected to described
On one sleeve 4081, the other end is connected in the second sleeve 4082.Hydraulic package 409 includes cylinder body 4091 and is plugged in institute
State the push rod 4092 in cylinder body 4091, the cylinder body 4091, which is connected with, promotes the push rod 4092 and the cylinder body 4091 along opposite
The hydraulic system of direction movement, first sleeve 4081 promote the direction that the second sleeve 4082 moves and the cylinder body
4091 directions for promoting the push rod 4092 to move are opposite.Hydraulic system includes brake pump and oil pipe line, and oil pipe line is connected to cylinder
Between body 4091 and brake pump.
Leading truck 405 is equipped with limited block, wherein a limited block is located at the outside of first sliding block 406, it is another spacing
Block is located at the inner side of second sliding block 407, the limited block and first sliding block 406 and the limited block and described the
The resetting spring 411 for making first sliding block 406 be moved towards with second sliding block 407 is equipped between two sliding blocks 407.
When braking system works, pneumatic system is first run, and compressed gas is transported in the first sleeve by air pump,
The first sleeve is set to be relatively moved with second sleeve, making the first Brake Block and the second Brake Block, movement is tentatively braked rapidly；So
Hydraulic system is run afterwards, and hydraulic oil is transported in cylinder body by brake pump, cylinder body is relatively moved with push rod, the system of increase first
Dynamic seat and the second Brake Block increase brake drag, improve braking effect to the pressure of brake disc.The mechanism can gradually reduce car
Speed, realizes braking steadily, prevents the complete locking of wheel in braking, has the function that anti-lock.
Claims (10)
1. a kind of automotive brake with heat sinking function, including brake disc（5）And caliper（4）, it is characterised in that：The system
Dynamic pincers（4）Including brake holder（404）, the first Brake Block（401）, the second Brake Block（402）, brake block（403）With hydraulic pressure group
Part（409）, the brake holder（404）It is equipped with leading truck（405）, first Brake Block（401）With the described second braking
Seat（402）It is slidably mounted on the leading truck（405）On, first Brake Block（401）It is arranged on brake disc（5）Inner side simultaneously
With the brake block positioned at homonymy（403）Connection, second Brake Block（402）It is arranged on first Brake Block（401）It is interior
Side, second Brake Block（402）Upper end from first Brake Block（401）Top extends to brake disc（5）Outside, and
With positioned at brake disc（5）The brake block in outside（403）Connection；The hydraulic package（409）It is connected to first Brake Block
（401）With second Brake Block（402）Between, and both reverse movements are promoted, make the brake block（403）With the braking
Disk（5）Braking；First Brake Block（401）Equipped with face brake disc（5）Through hole（4011）, the through hole（4011）Place is set
Have and be located at first Brake Block（401）With second Brake Block（402）Between blower chamber（410）, braked releasing
When pass through first Brake Block（401）With second Brake Block（402）Move towards, compress the blower chamber（410）
And by the blower chamber（410）Interior air passes through through hole（4011）Discharge is with to brake disc（5）Cooled down.
A kind of 2. automotive brake with heat sinking function according to claim 1, it is characterised in that：The blower chamber
（410）Including being fixed in first Brake Block（401）On air blast cylinder（4101）Be fixed in second Brake Block（402）
On air blast piston（4102）, the through hole（4011）With the air blast cylinder（4101）Barrel chamber connection, the air blast piston
（4102）Stretch into the air blast cylinder（4101）It is interior, pass through the air blast piston（4102）With the air blast cylinder（4101）Opposite shifting
It is dynamic, make the air blast cylinder（4101）Interior air is from the through hole（4011）Discharge, or outside air is passed through into the through hole
（4011）It is pumped into the air blast cylinder（4101）It is interior.
A kind of 3. automotive brake with heat sinking function according to claim 2, it is characterised in that：The air blast cylinder
（4101）Outside be equipped with heat sink（4103）, the heat sink（4103）Circle distribution is in the air blast cylinder（4101）On.
A kind of 4. automotive brake with heat sinking function according to claim 3, it is characterised in that：Positioned at the air blast
Cylinder（4101）The two neighboring heat sink on top（4103）Gap be more than be located at the air blast cylinder（4101）The phase of lower part
Adjacent two heat sinks（4103）Gap, first Brake Block（401）Upper surface and second Brake Block（402）
Top formed easy to air flow passage.
A kind of 5. automotive brake with heat sinking function according to claim 4, it is characterised in that：The brake disc
（5）Circumferential edge along equipped with the straight slot that is unidirectionally open（502）, the straight slot（502）Around the brake disc（5）Circumference uniform distribution,
And the straight slot（502）By the brake disc（5）Edge be directed toward its center of rotation；The brake disc（5）, it is close to described logical
Hole（4011）Side be equipped with heat emission hole（501）, the heat emission hole（501）With the straight slot（502）Connection.
A kind of 6. automotive brake with heat sinking function according to claim 1, it is characterised in that：First braking
Seat（401）Lower end be equipped be sleeved on the leading truck（405）On the first sliding block（406）, second Brake Block（402）'s
Lower end is equipped with and is sleeved on the leading truck（405）On the second sliding block（407）, the hydraulic package（409）It is connected to described
One sliding block（406）With second sliding block（407）Between.
A kind of 7. automotive brake with heat sinking function according to claim 7, it is characterised in that：The leading truck
（405）Limited block is equipped with, wherein a limited block is located at first sliding block（406）Outside, another limited block is positioned at described
Second sliding block（407）Inner side, the limited block and first sliding block（406）And the limited block and second sliding block
（407）Between be equipped with make first sliding block（406）With second sliding block（407）The resetting spring moved towards（411）.
A kind of 8. automotive brake with heat sinking function according to claim 7, it is characterised in that：First sliding block
（406）It is equipped with the first sleeve（4081）, second sliding block（407）The second sleeve being equipped with（4082）, the first set
Cylinder（4081）It is socketed in the second sleeve（4082）Outside, the second sleeve（4082）For hollow structure, the hydraulic pressure
Component（409）It is arranged on the second sleeve（4082）It is interior, the hydraulic package（409）One end be connected to first sleeve
（4081）On, the other end is connected to the second sleeve（4082）On.
A kind of 9. automotive brake with heat sinking function according to claim 8, it is characterised in that：First sleeve
（4081）It is connected with and promotes first sleeve（4081）With the second sleeve（4082）The gas relatively moved in opposite direction
Dynamic system.
A kind of 10. automotive brake with heat sinking function according to claim 9, it is characterised in that：The hydraulic pressure group
Part（409）Including cylinder body（4091）Be plugged in the cylinder body（4091）Interior push rod（4092）, the cylinder body（4091）Connection
Have and promote the push rod（4092）With the cylinder body（4091）The hydraulic system moved in opposite direction, first sleeve
（4081）Promote the second sleeve（4082）Mobile direction and the cylinder body（4091）Promote the push rod（4092）It is mobile
Direction it is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209872.9A CN107989936B (en) | 2017-11-28 | 2017-11-28 | A kind of automotive brake with heat sinking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209872.9A CN107989936B (en) | 2017-11-28 | 2017-11-28 | A kind of automotive brake with heat sinking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107989936A true CN107989936A (en) | 2018-05-04 |
| CN107989936B CN107989936B (en) | 2019-06-21 |
Family
ID=62032259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711209872.9A Active CN107989936B (en) | 2017-11-28 | 2017-11-28 | A kind of automotive brake with heat sinking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989936B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058330A (en) * | 2018-09-25 | 2018-12-21 | 鲍灵杰 | A kind of automobile brake disc component |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6382833U (en) * | 1986-11-19 | 1988-05-31 | ||
| US20050284708A1 (en) * | 2002-01-14 | 2005-12-29 | Joachim Christ | Cooling arrangement for brake caliper |
| WO2009154497A1 (en) * | 2008-06-09 | 2009-12-23 | Федеральное Государственное Унитарное Предприятие "Санкт-Петербургское Морское Бюро Машиностроения "Малахит" | Combined telescopic double-acting hydraulic cylinder for substantial strokes |
| CN204357990U (en) * | 2014-12-09 | 2015-05-27 | 富士和机械工业（湖北）有限公司 | A kind of disc brake with floating caliper |
| CN105065509A (en) * | 2015-09-09 | 2015-11-18 | 安徽工程大学 | Floating caliper disc type brake device capable of being limited |
| CN105317885A (en) * | 2015-12-08 | 2016-02-10 | 重庆元创汽车整线集成有限公司 | Disc brake with floating calipers |
-
2017
- 2017-11-28 CN CN201711209872.9A patent/CN107989936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6382833U (en) * | 1986-11-19 | 1988-05-31 | ||
| US20050284708A1 (en) * | 2002-01-14 | 2005-12-29 | Joachim Christ | Cooling arrangement for brake caliper |
| WO2009154497A1 (en) * | 2008-06-09 | 2009-12-23 | Федеральное Государственное Унитарное Предприятие "Санкт-Петербургское Морское Бюро Машиностроения "Малахит" | Combined telescopic double-acting hydraulic cylinder for substantial strokes |
| CN204357990U (en) * | 2014-12-09 | 2015-05-27 | 富士和机械工业（湖北）有限公司 | A kind of disc brake with floating caliper |
| CN105065509A (en) * | 2015-09-09 | 2015-11-18 | 安徽工程大学 | Floating caliper disc type brake device capable of being limited |
| CN105317885A (en) * | 2015-12-08 | 2016-02-10 | 重庆元创汽车整线集成有限公司 | Disc brake with floating calipers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058330A (en) * | 2018-09-25 | 2018-12-21 | 鲍灵杰 | A kind of automobile brake disc component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107989936B (en) | 2019-06-21 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An automobile brake with heat dissipation function Effective date of registration: 20201124 Granted publication date: 20190621 Pledgee: Anhui Guangde Rural Commercial Bank Co.,Ltd. Pledgor: ANHUI KEYUAN MACHINERY Co.,Ltd. Registration number: Y2020980008390 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211122 Granted publication date: 20190621 Pledgee: Anhui Guangde Rural Commercial Bank Co.,Ltd. Pledgor: ANHUI KEYUAN MACHINERY Co.,Ltd. Registration number: Y2020980008390 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Automobile brake with heat dissipation function Effective date of registration: 20211124 Granted publication date: 20190621 Pledgee: Anhui Guangde Rural Commercial Bank Co.,Ltd. Pledgor: ANHUI KEYUAN MACHINERY Co.,Ltd. Registration number: Y2021980013116 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221122 Granted publication date: 20190621 Pledgee: Anhui Guangde Rural Commercial Bank Co.,Ltd. Pledgor: ANHUI KEYUAN MACHINERY Co.,Ltd. Registration number: Y2021980013116 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |