CN206476689U - Lock collar device - Google Patents
Lock collar device Download PDFInfo
- Publication number
- CN206476689U CN206476689U CN201720096520.6U CN201720096520U CN206476689U CN 206476689 U CN206476689 U CN 206476689U CN 201720096520 U CN201720096520 U CN 201720096520U CN 206476689 U CN206476689 U CN 206476689U
- Authority
- CN
- China
- Prior art keywords
- fixture block
- braking
- brake
- braking fixture
- lock collar
- 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
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model is related to a kind of lock collar device, and its structure includes base, braking fixture block, fixture block and slides the parts such as row and brake activating mechanism by wall support mechanism, front apron, spacing cover plate, needle roller.The base includes bottom plate and two cant boards being integratedly built up on the bottom plate, two cant boards are oppositely arranged, its inwall is horizontal slope, make to form the wedge-shaped slot that front opening is big, open rearward end is small between two cant boards, be provided with the cant board and wear the mounting hole for connecing brake activating mechanism.The fixture block includes preceding support mechanism and rear support mechanism by wall support mechanism.The utility model realizes flexible mobile, the reliable braking of braking fixture block and brake disc bias stops, thereby eliminate device deformation, avoid and braked by mistake caused by brake disc eccentric rotary, so that the reliability of device is greatly improved, meet standard requirement, commercialization is truly realized, makes it possible the popularization and application of deadman's brake.
Description
Technical field
The utility model is related to a kind of deadman's brake, specifically a kind of lock for being used to carry out wheel disc safety arrestment
Disk device.
Background technology
For the deadman's brake volume that solves to be currently used for wheel disc side it is big, take up an area many and installation difficulty the problem of, applicant
A kind of lock collar device patent of earlier application（Publication No. CN 105480890A）, what this lock collar device was oppositely arranged including two
To clamp the chuck gap of wheel disc between framework, two frameworks, braking fixture block, two are provided with each framework
The sandwich serface of the braking fixture block in individual framework is relative, and friction plate is provided with the sandwich serface of the braking fixture block；Two
The braking fixture block constitutes combination sphenoid, and two frameworks constitute the combination wedge-shaped slot that sphenoid is combined in clamping；Described
Extension spring is provided with framework, the extension spring connects with the braking fixture block in framework, to pull braking fixture block to paste its back side
Lean against on framework inner edge.This lock collar device small volume, is easily installed on the braking wheel disc of existing various elevator crane gears, according to
It can implement brake hard to high pulling torque wheel disc by wedge structure.
But, also there is certain deficiency in this lock collar device, such as occasionally have device deformation when high-torque is braked when in use
Situation occur, cause can not locked brake disc, in addition, if brake disc eccentric rotary, will occur to brake by mistake, these all can
Causing the reliability of lock collar device reduces.
Utility model content
The purpose of this utility model is just to provide a kind of lock collar device of high reliability, can with solve that existing lock collar device is present
By property it is not high the problem of.
What the purpose of this utility model was realized in：A kind of lock collar device, including base, braking fixture block, fixture block are supportted by wall
Push up mechanism, front apron and brake activating mechanism.
The base includes bottom plate and two cant boards being integratedly built up on the bottom plate, two cant board phases
To setting, its inwall is horizontal slope, makes to form the wedge that front opening is big, open rearward end is small between two cant boards
Shape groove, is provided with the cant board and wears the mounting hole for connecing brake activating mechanism.
The braking fixture block is what is formed between juxtaposed two, two cant boards being arranged on the base
In wedge-shaped slot；Friction plate is provided with the sandwich serface of the braking fixture block, the back side of the braking fixture block is horizontal slope,
Make brake clip block body formation sphenoid, the horizontal concrete chute inserted for brake pushrod is provided with the back side of the braking fixture block.
The fixture block includes the anterior of braking fixture block described to two by wall support mechanism to be carried out before transverse elasticity ejection
Support mechanism and the rear support mechanism that two rear portions for braking fixture blocks are carried out with transverse elasticity ejection.
The front apron is fixed at the front port of the wedge-shaped slot of the base, for stopping the braking fixture block in wedge-shaped slot
From the abjection of front port.
The brake activating mechanism is connected by compression spring with brake pushrod, and the brake activating mechanism is arranged on described
In the mounting hole of cant board, the brake pushrod passes through the mounting hole, and its leading section is from the aperture on cant board inwall
In pass and act against braking fixture block the horizontal concrete chute in.
The utility model also includes limited location cover plate, and the spacing cover plate is horizontally installed on the upper edge of the cant board,
For braking fixture block described in block from the abjection at the top of wedge-shaped slot；The inner side of the spacing cover plate is along beyond side where spacing cover plate
Sandwich serface of braking fixture block when initial position, it is spacing to be carried out to the beat of brake disc, prevent because of brake disc deflection
The mistake braking caused.
The utility model also includes needle roller and slides row, and it is L-shaped folded plate that the needle roller, which slides row, in its plate face provided with it is some into
Arrange the needle roller set；The needle roller slides the side wall and groove bottom that row abuts in base wedge-shaped slot, for being carried for the braking fixture block
For sliding support, to reduce the sliding friction between braking fixture block and base wedge-shaped slot.
The utility model is terminated with extension spring before the needle roller slides row, and the other end of the extension spring is fixed on by jackscrew
On the front apron.
The preceding support mechanism includes pole and the top spring being socketed on the pole, and the two ends of the pole are plugged on institute
In the inserting hole outputed in front position of sandwich serface for stating braking fixture block, the diameter of the pole is less than the inserting hole
Diameter, the two ends of the top spring are acted against on the sandwich serface of the braking fixture block.
The inserting hole is opened in the sandwich serface of the braking fixture block on the position of front lower portion, so that preceding support mechanism
Get out of the way the brake disc passage between two braking fixture blocks, it is ensured that the normal work of hoist engine class crane gear；The inserting hole
Central axis is braked in the sandwich serface of braking fixture block, the deep-controlled of the inserting hole when two braking fixture blocks are in clamp
The pole still has axial activity surplus during position, can thus avoid pole from withstanding braking fixture block and prevent it from clamping brake disc
Situation occur.
The rear support mechanism pitches for U-shaped spring, and two up extension ends of the U-shaped spring fork are bent into the plug of knuckle forward,
The plug is plugged in the jack outputed on braking fixture block rear end face.
The utility model is provided with the screw that declutches in the front end face of the braking fixture block, is provided with the plate face of the front apron
The declutch hole relative with the screwhole position that declutches.
Bearing or roller are provided with the front end of the brake pushrod, with reduce braking fixture block in safety arrestment with
Frictional resistance between brake pushrod termination.
The formation part of the utility model component and wedge-shaped slot based on the rigid body base of a high intensity, in system
Dynamic trigger mechanism, fixture block are slided by wall support mechanism, front apron, spacing cover plate and needle roller under the synergy of row, realize braking
Flexible mobile, the reliable braking of fixture block and brake disc bias stop, thereby eliminate device deformation, it is to avoid because brake disc is eccentric
Braked by mistake caused by rotating so that the reliability of device is greatly improved, meet standard requirement, be truly realized commercialization, make
The popularization and application of deadman's brake are possibly realized.
The utility model applies positive motive force using brake activating mechanism to braking fixture block, makes the friction on braking fixture block
Piece is clinged in the card of wheel disc, under the drive of the frictional force formed between wheel disc card, is made with composite wedge structure
Two braking fixture blocks enter the osculum end of base wedge-shaped slot so that Quick-clamped wheel disc, reaches the mesh of brake hard wheel disc
's.
The utility model is simple in construction, and engaged position is small, the wheel disc side of elevator crane gear is easily installed in, to high pulling torque
Wheel disc can implement reliable and stable braking, and solving existing elevator crane gear does not have the problem of deadman's brake installation site,
Also elevator crane gear is efficiently solved because place is limited in the inconvenience of wheel disc side or can not install the long-standing of deadman's brake
Problem.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, spacing cover plate, 2, base, 21, bottom plate, 22, cant board, 23, fixing threaded hole, 3, front apron, 31, declutch
Hole, 32, extension spring positioning hole, 33, fixing hole, 4, friction plate, 5, top spring, 6, pole, 7, braking fixture block, 71, horizontal concrete chute, 72,
Declutch screw, 8, jackscrew, 9, U-shaped spring fork, 10, brake activating mechanism, 11, bearing, 12, brake pushrod, 13, needle roller slide row, 14,
Extension spring.
Embodiment
As shown in figure 1, the utility model include base 2, braking fixture block 7, fixture block by wall support mechanism, needle roller slide row 13,
The parts such as front apron 3, spacing cover plate 1 and brake activating mechanism 10.
Base 2 includes the heavy wall cant board 22 that bottom plate 21 and two are oppositely arranged, and bottom plate 21 and two cant boards 22 are to use
The integrally manufactured shaping of the mild steel of high intensity, can keep maximum rigidity.The inwall of two cant boards 22 is horizontal slope
Face, makes to form the wedge-shaped slot that front opening is big, open rearward end is small between two cant boards 22.It is provided with cant board 22 and wears the system of connecing
The mounting hole of dynamic trigger mechanism.The mounting hole is ladder circular hole, and brake activating mechanism 10 is arranged in the mounting hole.
Braking fixture block 7 has symmetrical two, and the back side of braking fixture block 7 is horizontal slope, forms brake clip block body
Sphenoid.Two braking fixture blocks 7 are arranged in the wedge-shaped slot formed between two cant boards 22 on base 2 parallel, but
It is parallel brake disc passage between two braking fixture blocks.Friction plate 4 is provided with the sandwich serface of braking fixture block 7, in braking
The back side of fixture block 7 is provided with horizontal concrete chute 71.
Brake activating mechanism 10 is connected by compression spring with brake pushrod 12.Brake activating mechanism 10 can be electromagnetism
Iron, hydraulic means or pneumatic means etc. can be dead electricity triggerings or obtain the working method of electric triggering.Braking triggering
Mechanism 10 is from the outside of cant board 22 insertion mounting hole, and brake pushrod 12 passes through mounting hole, and its front end is from the inwall of cant board 22
On aperture in pass and act against braking fixture block 7 horizontal concrete chute 71 on.Axle is provided with the front end of brake pushrod 12
11 are held, roller etc. is may also set up, to reduce frictional resistance of the braking fixture block 7 in safety arrestment between brake pushrod termination.
The fixture block includes the anterior of braking fixture block described to two by wall support mechanism to be carried out before transverse elasticity ejection
Support mechanism and the rear support mechanism that two rear portions for braking fixture blocks are carried out with transverse elasticity ejection.
Preceding support mechanism includes pole 6 and the top spring 5 being socketed on pole 6；The two ends of pole 6 are plugged on braking fixture block 7
The inserting hole outputed in front position of sandwich serface in, the diameter of pole 6 is less than the diameter of inserting hole, has pole 6
Axial activity surplus.Top spring 5 two ends act against braking fixture block 7 sandwich serface on, make braking fixture block 7 front end abut in it is edge-on
On plate 22.The central axis of inserting hole on braking fixture block 7 is being worked as in the sandwich serface of braking fixture block, the deep-controlled of inserting hole
When two braking fixture blocks are in and clamp retarder location, pole 6 still has axial activity surplus.Inserting hole is opened in the folder of braking fixture block 7
Conjunction face is on the position of front lower portion, to get out of the way the service aisle of brake disc in lock collar device.
Support mechanism is a U-shaped spring fork 9 afterwards, and two up extension ends of U-shaped spring fork 9 are bent into the plug of knuckle forward,
Jack is provided with the rear end face for braking fixture block 7, a plug is plugged in the jack on a braking fixture block 7, pitched using U-shaped spring
9 elastic reset extension effect, can be such that the rear end of braking fixture block 7 abuts on cant board 22.
Fixture block realizes by wall support mechanism and leans on wall support to the elasticity for braking fixture block, so achieves that brake clip block
It is in stable condition that the unobstructed of the brake disc passage between fixture blocks is braked two, be conducive to avoiding the generation of brake condition by mistake.In addition, folder
The preceding support mechanism that block is leaned in wall support mechanism also has the effect for making two braking fixture blocks 7 realize synchronization action, to avoid out
Now because brake fixture block asynchrony phenomenon prevent safety arrestment from situation occur.
Front apron 3 is fixed at the front port of the wedge-shaped slot of base 2, for stopping the braking fixture block 7 in wedge-shaped slot, is prevented
Fixture block is braked from the front port of wedge-shaped slot to deviate from.Front apron 3 can be the monoblock plate body of the Intermediate Gray gap shown in Fig. 1, also may be used
With two symmetric bodies separated in being.The middle gap of front apron 3 or the width at interval are greater than the thickness of brake disc, with
Just rotation work space is provided for brake disc.Fixing hole 33 is provided with the bottom of front apron 3, position is provided with the front end face of base 2
Be relatively fixed screw 23, uses fixing bolt, you can at the front port that front apron 3 is fixed on to base wedge-shaped slot.
Spacing cover plate 1 can be for setting up on cant board 21 along inner side and with the integrally formed cornice of base 2 or
Single cover plate.Spacing cover plate 1 shown in Fig. 1 is by the soft metal plate of two strips（Such as copper coin）Composition, each limit
Position cover plate 1 be fixed on cant board 21 on along top surface.Spacing cover plate 1 can also be the metal that copper bar is attached in its medial extremity
Plate.Each spacing cover plate 1 is fixed on the upper edge of a cant board 22 by fastener, and spacing cover plate 1 stretches out to inner side, its inner side
Along covering in the top of base wedge-shaped slot, fixture block is braked for block, prevents that brake fixture block deviates from from the top of wedge-shaped slot.Separately
Outside, the interior degree of stretching of spacing cover plate 1 is to make inner side along the braking fixture block beyond side where the spacing cover plate when initial position
Sandwich serface（But sandwich serface of braking fixture block when operating position can not be exceeded）, it is along to the inclined of brake disc by inner side that it, which is acted on,
The dynamic progress of rotation is spacing, prevents from touching braking fixture block 7 because brake disc deflection is rotated, causes to brake by mistake.
Needle roller is additionally provided with base wedge-shaped slot and slides row 13.It is L-shaped folded plate that needle roller, which slides row 13, and three are provided with its plate face
Arrange needle roller --- two row's needle rollers on the row of side wall two, the row of bottom surface one, side wall are used for the rear wall for supporting braking fixture block, a row of bottom surface
Needle roller is used for the bottom surface for supporting braking fixture block.Needle roller slides the side walls and groove bottom that row 13 abuts in base wedge-shaped slot, for for system
Dynamic fixture block 2 provides sufficient effective sliding support, to reduce the frictional resistance between braking fixture block 7 and wedge-shaped slot inwall.In rolling
Pin is slided and is provided with Cross slat hole in the plate face between the upper and lower two rows needle roller of the side wall of row 13, so that brake pushrod 12 passes through needle roller
Sliding row.Extension spring 14 is terminated with before needle roller slides row 13, the front end of extension spring 14 is fixed on front apron 3 by jackscrew 8.It is specific solid
Determining mode is, the extension spring positioning hole 32 of insertion is provided with the plate face of front apron 3, and top is connect along being above provided with to wear in the side of front apron 3
The screw of silk, the screw communicates with extension spring positioning hole 32, jackscrew is screwed into from screw, after the draw ring of extension spring front end is worn,
It is tightened in screw, you can position the front end of extension spring 14.The purpose for setting extension spring is to slide the progress elasticity of row 13 to needle roller to socket,
Prevent needle roller is slided from arranging 13 with the movement of braking fixture block from the abjection of wedge-shaped slot rear port, and can be realized certainly when declutching operation
Dynamic return.
Under normal circumstances, brake activating mechanism 10 pushes down compression spring, and brake pushrod 12 does not touch braking fixture block 2, braking
Disk wheel along be able to two brake fixture block between service aisle along normal through.Work as generation（Brake failure of hoist engine etc.）
During emergency, system sends signal, disconnects the working power of this lock collar device, the release compression spring of brake activating mechanism 10, system
Dynamic push rod 12 is released forward rapidly in the presence of compression spring, promotes braking fixture block 7 to press to brake disc, the system of high-speed rotation
Moving plate drives braking fixture block 7 to be moved towards the portlet direction of wedge-shaped slot, so that by two by the frictional force between braking fixture block
The quick clip of braking fixture block 2 with laterally opposed motion is dead under individual lower wedge-shaped motion state, is achieved in the purpose of brake hard.
Two screws 72 that declutch also are provided with the front end face of braking fixture block 7, is provided with and declutches in the plate face of front apron 3
The relative hole 31 of declutching of screwhole position.After braking fixture block 2 presss from both sides dead brake disc, the mode that can be manually operated utilizes pine
Lock bolt is penetrated in the screw that declutches of braking fixture block 7, during continuously the bolt that declutches is turned, you can will brake fixture block the last 2
System is pulled back, so that the dead lock collar device of folder is opened, realizes operation of declutching.This mode that declutches is very easy, is easy to maintenance personal
Study and operation.
Claims (9)
1. a kind of lock collar device, it is characterized in that, including base, braking fixture block, fixture block are by wall support mechanism, front apron and braking triggering
Mechanism；
The base includes bottom plate and two cant boards being integratedly built up on the bottom plate, and two cant boards are relative to be set
Put, its inwall is horizontal slope, make to form the wedge shape that front opening is big, open rearward end is small between two cant boards
Groove, is provided with the cant board and wears the mounting hole for connecing brake activating mechanism；
The braking fixture block is the wedge shape formed between juxtaposed two, two cant boards being arranged on the base
In groove；Friction plate is provided with the sandwich serface of the braking fixture block, the back side of the braking fixture block is horizontal slope, makes system
Dynamic fixture block body formation sphenoid, the horizontal concrete chute inserted for brake pushrod is provided with the back side of the braking fixture block；
The fixture block includes the anterior preceding support for carrying out transverse elasticity ejection of braking fixture block described to two by wall support mechanism
Mechanism and the rear support mechanism that two rear portions for braking fixture blocks are carried out with transverse elasticity ejection；
The front apron is fixed at the front port of the wedge-shaped slot of the base, for stopping the braking fixture block in wedge-shaped slot in the past
The abjection of port；
The brake activating mechanism is connected by compression spring with brake pushrod, and the brake activating mechanism is arranged on described edge-on
In the mounting hole of plate, the brake pushrod passes through the mounting hole, and its leading section is worn from the aperture on cant board inwall
Go out and act against in the horizontal concrete chute for braking fixture block.
2. lock collar device according to claim 1, it is characterized in that, also include spacing cover plate, the spacing cover plate is laterally set
Put on the upper edge of the cant board, for braking fixture block described in block from the abjection at the top of wedge-shaped slot；The spacing cover plate it is interior
Sandwich serface of the side along the braking fixture block beyond side where spacing cover plate when initial position, to be carried out to the beat of brake disc
It is spacing.
3. lock collar device according to claim 1, it is characterized in that, also include needle roller and slide row, it is L-shaped folding that the needle roller, which slides row,
Plate, is provided with some needle rollers set in a row in its plate face；The needle roller slides the side wall and bottom land that row abuts in base wedge-shaped slot
Face, for providing sliding support for the braking fixture block.
4. lock collar device according to claim 3, it is characterized in that, it is terminated with extension spring, the drawing before the needle roller slides row
The other end of spring is fixed on the front apron by jackscrew.
5. lock collar device according to claim 1, it is characterized in that, the preceding support mechanism includes pole and is socketed in the branch
Top spring on bar, the two ends of the pole are plugged on the inserting hole that the sandwich serface of the braking fixture block is outputed in front position
In, the diameter of the pole is less than the diameter of the inserting hole, and the two ends of the top spring act against the clamping of the braking fixture block
On face.
6. lock collar device according to claim 5, it is characterized in that, the sandwich serface that the inserting hole is opened in the braking fixture block is leaned on
On the position of front end bottom, the central axis of the inserting hole is in the sandwich serface of braking fixture block, the depth of the inserting hole
Control when two brake fixture blocks be in clamp retarder location when the pole still have axial activity surplus.
7. lock collar device according to claim 1, it is characterized in that, the rear support mechanism pitches for U-shaped spring, the U-shaped spring fork
Two up extension ends be bent into the plug of knuckle forward, the plug is plugged in the jack outputed on braking fixture block rear end face.
8. the lock collar device according to claim 1,2,3,4,5,6 or 7, it is characterized in that, in the front end face of the braking fixture block
The screw that declutches is provided with, the declutch hole relative with the screwhole position that declutches is provided with the plate face of the front apron.
9. the lock collar device according to claim 1,2,3,4,5,6 or 7, it is characterized in that, in the front end of the brake pushrod
On be provided with bearing or roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096520.6U CN206476689U (en) | 2017-01-25 | 2017-01-25 | Lock collar device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096520.6U CN206476689U (en) | 2017-01-25 | 2017-01-25 | Lock collar device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206476689U true CN206476689U (en) | 2017-09-08 |
Family
ID=59754196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720096520.6U Active CN206476689U (en) | 2017-01-25 | 2017-01-25 | Lock collar device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206476689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744451A (en) * | 2017-01-25 | 2017-05-31 | 韩伍林 | Lock collar device |
| CN116066491A (en) * | 2023-04-06 | 2023-05-05 | 石家庄五龙制动器股份有限公司 | Remote brake release mechanism of electromagnetic self-braking safety brake |
-
2017
- 2017-01-25 CN CN201720096520.6U patent/CN206476689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744451A (en) * | 2017-01-25 | 2017-05-31 | 韩伍林 | Lock collar device |
| CN116066491A (en) * | 2023-04-06 | 2023-05-05 | 石家庄五龙制动器股份有限公司 | Remote brake release mechanism of electromagnetic self-braking safety brake |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106744451A (en) | Lock collar device | |
| CN206476689U (en) | Lock collar device | |
| DE102005001344B4 (en) | Wind turbine | |
| EP2920101B1 (en) | Lift with a safety brake | |
| DE102006002409A1 (en) | Device with a door | |
| DE1960002A1 (en) | Safety bindings | |
| EP1786593B1 (en) | Braking and clamping device comprising a drive | |
| CN202990914U (en) | Direct push catwalk machine for low drill stand | |
| CN100497157C (en) | Method for hydraulically ejecting or dragging object and clamping mechanism | |
| CN206478144U (en) | Lock collar device base used specially | |
| CN206478143U (en) | Brake the sliding support mechanism of fixture block | |
| CN213576735U (en) | Bearing oiling machine | |
| CN206476690U (en) | Lock collar Qi Fang unusual fluctuations mechanism | |
| CN206476688U (en) | Fixture block leans on wall support mechanism | |
| CN206476691U (en) | Lock collar device fixture block synchronizing control | |
| CN207463902U (en) | A kind of GIGAbend Folding System | |
| CN201024069Y (en) | Clamping device for hydraulic push or dragging article | |
| CN201329859Y (en) | Hydraulic drum type brake with upper-lower double push rod halt vehicle mechanism | |
| DE102020105874B3 (en) | BRAKE DEVICE | |
| CN206914175U (en) | A kind of compression type Quick Release slide rail chair mechanism | |
| CN208899949U (en) | Equipment is pushed away from limit | |
| AT518660B1 (en) | caliper brake | |
| CN202625538U (en) | Elevator maintenance safety device | |
| DE102008047936A1 (en) | Brake for roller blades, comprises brake element or friction roller, and brake force is transferred on roller blade rollers over energy unit with electronic regulator and operating motor, where brake system is electrically operated | |
| CN205098217U (en) | Embedded car pusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180522 Address after: 050000 C-1607, Jinshi building, 375 new stone road, Shijiazhuang, Hebei. Patentee after: SHIJIAZHUANG NIULUN BRAKING TECHNOLOGY CO., LTD. Address before: 050000 No. 1, unit 9, 9 Guang'an street, Changan District, Shijiazhuang, Hebei 102 Patentee before: Han Wulin |
|
| TR01 | Transfer of patent right |