CN107685746B - A kind of vehicle bumper connector - Google Patents
A kind of vehicle bumper connector Download PDFInfo
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- CN107685746B CN107685746B CN201710817568.6A CN201710817568A CN107685746B CN 107685746 B CN107685746 B CN 107685746B CN 201710817568 A CN201710817568 A CN 201710817568A CN 107685746 B CN107685746 B CN 107685746B
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- cylinder body
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- cylindrical hole
- piston bar
- spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of vehicle bumper connector, the buffer coupling includes left plunger, left piston bar, left end cap, left end, cylinder body, the first preloaded spring, the first spring base, first sleeve, piston, the second casing, second spring seat, the second preloaded spring, right end, right piston bar, right end cap, right plunger.The present invention absorbs the working principle of energy and hydraulic damping consumption energy using preloaded spring, it absorbs and consumption towing vehicle starts and the impact energy in braking process, realize the smooth start and braking of towing vehicle, due to being provided with preloaded spring inside vehicle bumper connector, traction transmitting of the towing vehicle in normal driving process ensure that.Meanwhile the present invention can also promote the use of in the hoisting transportations such as body, reduce the impact in hoisting process, guarantee transporting safely for body.
Description
Technical field
The present invention relates to a kind of vehicle bumper connector, belong to electrically and field of electromechanical technology.
Background technique
Currently, towing vehicle has obtained extensive utilization in traffic transport industry, in existing towing vehicle, vehicle
Driving portion and by between tractive unit often by rigid connection realize traction, this will lead to, and towing vehicle is in starting
There is starting-impact in the process, there is braking impact during braking, especially braking impact can generate personnel when serious
Casualty accident.
Summary of the invention
In order to overcome above-mentioned deficiency, the present invention provides a kind of vehicle bumper connectors.
Technical scheme is as follows:
A kind of vehicle bumper connector, the buffer coupling include left plunger, left piston bar, left end cap, left end, cylinder
Body, the first preloaded spring, the first spring base, first sleeve, piston, the second casing, second spring seat, the second preloaded spring, the right side
End, right piston bar, right end cap, right plunger；
The left and right ends of the cylinder body are machined with left and right threaded hole, and the circle of cylinder body first is machined on the right side of cylinder body left-hand thread hole
Post holes, the bottom right side and cylinder body of the first cylindrical hole of cylinder body form cylinder body first step, are machined on the right side of cylinder body first step
The second cylindrical hole of cylinder body, the bottom right side and cylinder body of the second cylindrical hole of cylinder body form cylinder body second step, the second cylindrical hole of cylinder body
Middle part above it is radial offer the first tank filler sleeve, offered in the middle part of cylinder body axially through cylinder inner bore, cylinder body right-hand thread
The 4th cylindrical hole of cylinder body is machined on the left of hole, the left bottom and cylinder body of the 4th cylindrical hole of cylinder body form the 4th step of cylinder body,
Cylinder body third cylindrical hole is machined on the left of the 4th step of cylinder body, the left bottom and cylinder body of cylinder body third cylindrical hole form cylinder body
Third step, the middle part top of cylinder body third cylindrical hole is radial to offer the second tank filler sleeve；It is equipped on first tank filler sleeve
First plug and associated seal；The second plug and associated seal are installed on second tank filler sleeve；
Offered on the piston axially through damping flow channel；The left end of the piston and left piston bar connect into one
Body, right end and the right piston bar of piston link into an integrated entity, and piston is installed along in cylinder body together with left piston bar and right piston bar
Kong Zhong is formed between piston and cylinder inner bore and is slidably matched；On left piston bar, right end pushes against the first sleeve sliding sleeve
The left side of piston；Offered on first spring base several axially through the first oil-through-hole, the first spring base sliding sleeve
It on left piston bar, and is mounted in the second cylindrical hole of cylinder body, the right side of the first spring base pushes against cylinder body second step；It is described
Left end sliding sleeve is mounted in the first cylindrical hole of cylinder body on left piston bar, and the right side of left end pushes against cylinder body first
Step is equipped with sealing element, guidance tape, dustband, the outer wall and cylinder body of left end between the inner hole and left piston bar of left end
Sealing element is installed between first cylindrical hole；The left end of first preloaded spring pushes against the right part boss for being sleeved on left end
On, the right end abutting of the first preloaded spring is sleeved on the left part boss of the first spring base；The left end of the left end cap and cylinder body
It is formed and is closely threadedly coupled, the left side of left end is pressed on the right side of left end cap；The left end of the left plunger and left piston bar
It is formed and is closely threadedly coupled；
Second cannula slide is sleeved on right piston bar, and left end pushes against the right side of piston；On the second spring seat
Offer several axially through the second oil-through-hole, second spring seat sliding sleeve is mounted on cylinder body on the right piston bar
In third cylindrical hole, the left side of second spring seat pushes against cylinder body third step；The right end sliding sleeve is mounted on right piston bar,
And be mounted in the 4th cylindrical hole of cylinder body, the left side of right end pushes against the 4th step of cylinder body, the inner hole and right piston bar of right end
Between sealing element, guidance tape, dustband are installed, sealing element is installed between the 4th cylindrical hole of outer wall and cylinder body of right end；
The right end abutting of second preloaded spring is sleeved on the left part boss of right end, and the left end of the second preloaded spring pushes against suit
On the right part boss of second spring seat；The inside of the right end cap offers right piston bar accommodating chamber, right end cap and cylinder body
Right end forms close threaded connection, and the right side of right end is pressed on the left of right end cap, and the right side of right end cap and right plunger are welded
It is connected into one；After the piston is mounted on cylinder inner bore, cylinder inner bore is divided into the left working chamber of vehicle bumper connector and vehicle
The right working chamber of buffer coupling；The left working chamber of the vehicle bumper connector and the right working chamber of vehicle bumper connector and cylinder
The second cylindrical hole of body and third cylindrical hole are each filled with working fluid in advance.
Above-mentioned damping flow channel is provided with the damping flow channel or be provided with work that the axial direction on outside piston peripheral wall directly penetrates through
The damping flow channel of axial screw perforation in circumferential wall beyond the Great Wall.
Above-mentioned damping flow channel is provided with internal piston.
The axial length of above-mentioned first sleeve is less than or equal to the right side of the first spring base to the distance of piston left side.
The axial length of above-mentioned second casing is less than or equal to the left side of second spring seat to the distance of piston right side.
Advantageous effects of the invention:
In order to reduce and reduce starting and braking impact, the invention proposes a kind of vehicle bumper connector and buffering connections
The working method of device absorbs the working principle of energy and hydraulic damping consumption energy using preloaded spring, absorbs and consumption is drawn
Impact energy in vehicle launch and braking process realizes the smooth start and braking of towing vehicle, simultaneously as slow in vehicle
It rushes and is provided with preloaded spring inside connector, ensure that traction transmitting of the towing vehicle in normal driving process.Meanwhile this hair
It is bright to promote the use of in the hoisting transportations such as body, the impact in hoisting process is reduced, guarantees transporting safely for body.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
A kind of vehicle bumper connector, the buffer coupling include left plunger 1, left piston bar 2, left end cap 3, left end
4, cylinder body 5, the first preloaded spring 6, the first spring base 7, first sleeve 8, piston 9, the second casing 10, second spring seat 11,
Two preloaded springs 12, right end 13, right piston bar 14, right end cap 15, right plunger 16；
The left and right ends of the cylinder body 5 are machined with left and right threaded hole, and cylinder body is machined with cylinder body first on the right side of 5 left-hand thread hole
Cylindrical hole 34, the bottom right side and cylinder body of the first cylindrical hole of cylinder body 34 form cylinder body first step 30, cylinder body first step 30
Right side is machined with the second cylindrical hole of cylinder body 29, and the bottom right side and cylinder body of the second cylindrical hole of cylinder body 29 form cylinder body second step
31, it is radial above the middle part of the second cylindrical hole of cylinder body 29 to offer the first tank filler sleeve 28, the middle part of cylinder body 5 offer axially through
Cylinder inner bore 35, be machined with the 4th cylindrical hole 18 of cylinder body, the left side of the 4th cylindrical hole 18 of cylinder body on the left of 5 right-hand thread hole of cylinder body
Bottom and cylinder body form the 4th step 33 of cylinder body, and the left side of the 4th step 33 of cylinder body is machined with cylinder body third cylindrical hole 19, cylinder body
The left bottom and cylinder body of third cylindrical hole 19 form cylinder body third step 32, radial direction above the middle part of cylinder body third cylindrical hole 19
Offer the second tank filler sleeve 21；First plug 27 and associated seal are installed on first tank filler sleeve 28；Described second adds
Second plug 20 and associated seal are installed on oilhole 21；
Offered on the piston 9 axially through damping flow channel 23；The left end of the piston 9 is connect with left piston bar 2
Integrally, the right end of piston 9 links into an integrated entity with right piston bar 14, and piston 9 is pacified together with left piston bar 2 and right piston bar 14
In cylinder inner bore 35, is formed and be slidably matched between piston 9 and cylinder inner bore 35；8 sliding sleeve of first sleeve is mounted in a left side
On piston rod 2, right end pushes against the left side of piston 9；Offered on first spring base 7 several axially through the first logical oil
Hole 26,7 sliding sleeve of the first spring base are mounted in the second cylindrical hole of cylinder body 29, the first spring base 7 on left piston bar 2
Right side push against cylinder body second step 31；4 sliding sleeve of left end is mounted on the circle of cylinder body first on left piston bar 2
In post holes 34, the right side of left end 4 pushes against cylinder body first step 30, is equipped between the inner hole and left piston bar 2 of left end 4 close
Sealing, guidance tape, dustband are equipped with sealing element between the outer wall and the first cylindrical hole of cylinder body 34 of left end 4；Described first is pre-
The left end for carrying spring 6, which pushes against, to be sleeved on the right part boss of left end 4, and the right end abutting of the first preloaded spring 6 is sleeved on first
On the left part boss of spring base 7；The left end of the left end cap 3 and cylinder body 5 forms close threaded connection, the right side of left end cap 3
It is pressed on the left side of left end 4；The left end of the left plunger 1 and left piston bar 2 forms close threaded connection；
For second casing, 10 sliding sleeve on right piston bar 14, left end pushes against the right side of piston 9；The second spring
Offered on seat 11 several axially through the second oil-through-hole 22,11 sliding sleeve of second spring seat on the right piston bar 14,
And be mounted in cylinder body third cylindrical hole 19, the left side of second spring seat 11 pushes against cylinder body third step 32；The right end 13
Sliding sleeve is mounted in the 4th cylindrical hole 18 of cylinder body on right piston bar 14, and the left side of right end 13 pushes against cylinder body the 4th
Step 33, is equipped with sealing element, guidance tape, dustband between the inner hole and right piston bar 14 of right end 13, right end 13 it is outer
Sealing element is installed between the 4th cylindrical hole 18 of wall and cylinder body；The right end abutting of second preloaded spring 12 is sleeved on right end
On 13 left part boss, the left end of the second preloaded spring 12, which pushes against, to be sleeved on the right part boss of second spring seat 11；The right side
The inside of end cap 15 offers right piston bar accommodating chamber 17, and right end cap 15 and the right end of cylinder body 5 form close threaded connection, right
The left side of end cap 15 is pressed on the right side of right end 13, and the right side of right end cap 15 and right plunger 16 are integrally welded；The piston 9
After being mounted on cylinder inner bore 35, cylinder inner bore 35 is divided into the left working chamber 25 of vehicle bumper connector and vehicle bumper connector
Right working chamber 24；The left working chamber 25 of the vehicle bumper connector and the right working chamber 24 of vehicle bumper connector and cylinder body second
Cylindrical hole 29 and third cylindrical hole 19 are each filled with working fluid in advance.
Above-mentioned damping flow channel 23 is provided with the damping flow channel or be provided with that the axial direction on 9 outer circle wall of piston directly penetrates through
The damping flow channel of axial screw perforation on 9 outer circle wall of piston.
Above-mentioned damping flow channel 23 is provided with inside piston 9.
The axial length of above-mentioned first sleeve 8 be less than or equal to the right side of the first spring base 7 to piston 9 left side away from
From.
The axial length of above-mentioned second casing 10 be less than or equal to the left side of second spring seat 11 to piston 9 right side away from
From.
The working method of buffer coupling: a kind of left end of vehicle bumper connector is connect and is pacified with pin shaft by pin hole A
On the driving portion of vehicle, the right end of vehicle bumper connector connect with pin shaft by pin hole B and is mounted on being led for vehicle
Draw in portion, the driving portion of vehicle is moved by the drive of vehicle bumper connector by tractive unit together, for example vehicle bumper is connected
Device is used for drawbar trailer, and the left end of vehicle bumper connector is connect with pin shaft by pin hole A and is mounted on driving headstock, vehicle
The right end of buffer coupling is connect with pin shaft and is mounted on trailer compartment by pin hole B, and headstock is driven to pass through vehicle bumper
Connector drives trailer compartment to move together.
When towing vehicle starts, the driving portion of vehicle moves first, and driving force is acted on vehicle by connecting pin shaft
On the left piston bar 2 of buffer coupling, the band formation of piston 9 moves downward trend, and driving force is further through piston 9, first sleeve
8, the first spring base 7, the first preloaded spring 6, left end 4, left end cap 3, cylinder body 5, right end cap 15, right plunger 16, and pass through company
Outbound axis be transmitted to vehicle by tractive unit, if vehicle is loaded by the starting inertia of tractive unit less than the first preloaded spring 6
Preload force when, the first preloaded spring 6 will not be compressed, and will not be generated between vehicle bumper connector left pin hole A and right pin hole B
Quite displacement, vehicle bumper connector are equivalent in rigid state, and the driving portion of vehicle can be straight by vehicle bumper connector
Being moved together by tractive unit for tape splicing motor-car, completes the starting of towing vehicle；If vehicle is born by the starting inertia of tractive unit
When carrying the preload force for being greater than the first preloaded spring 6, the driving portion of vehicle drives left piston bar 2, piston 9, the by connection pin shaft
Sleeve 8, the first spring base 7 overcome 6 precompression of the first preloaded spring, move downward, on the one hand the first preloaded spring 6 can by into
One step compression, absorb vehicle launch during impact energy, on the other hand, due to piston 9 generated in cylinder inner bore 35 to
Left movement, the working fluid in the left working chamber 25 of vehicle bumper connector can flow to vehicle bumper company by damping flow channel 23
It connects in the right working chamber 24 of device, forms damping drag, consume the impact energy during vehicle launch, so, when vehicle is drawn
When the starting inertia load in portion is greater than the preload force of the first preloaded spring 6, vehicle bumper connector is equivalent in flexible state,
Vehicle bumper connector absorbs the impact energy in towing vehicle starting process by the first preloaded spring 6, while passing through damping
Impact energy in the damping action consumption towing vehicle starting process of runner 23, realizes the smooth start of towing vehicle.
When towing vehicle normally travel, the tractive force of towing vehicle is more stable, and in vehicle bumper connector, first is pre-
The precompression for carrying spring 6 is set greater than the tractive force of towing vehicle normally travel, so, when towing vehicle normally travel,
The driving force of vehicle drive portion drives left piston bar 2, piston 9, first sleeve 8, the first spring base 7, first by connection pin shaft
Preloaded spring 6, left end 4, left end cap 3, cylinder body 5, right end cap 15, right plunger 16, and vehicle is transmitted to by connecting pin shaft
By on tractive unit, since the precompression of the first preloaded spring 6 is set greater than the tractive force of towing vehicle normally travel, first is pre-
Carrying spring 6 will not be compressed, and piston 9 will not generate movement to the left, the left pin hole A of vehicle bumper connector and right pin hole B it
Between will not generate suitable displacement, vehicle bumper connector is equivalent in rigid state, the driving portion of vehicle and being led for vehicle
Draw and be equivalent to form rigid connection between portion, guarantees towing vehicle normally travel.
When towing vehicle braking, vehicle by tractive unit there are the effect of motional inertia, the inertia that is generated by tractive unit
Power drives right plunger 16, cylinder body 5, right end cap 15, right end 13, the second preloaded spring 12, second spring seat by connection pin shaft
11, the second casing 10, piston 9, left piston bar 2, left plunger 1, and be transmitted on the driving portion of vehicle by connecting pin shaft.If
The precompression of vehicle drive portion and vehicle by the relative brake impact force between tractive unit less than the second preloaded spring 12, second is pre-
Further compression will not be generated by carrying spring 12, will not generate suitable position between vehicle bumper connector left pin hole A and right pin hole B
It moves, vehicle bumper connector is equivalent in rigid state；If vehicle drive portion and vehicle are by the opposite system between tractive unit
Dynamic impact force is greater than the precompression of the second preloaded spring 12, and vehicle drives right plunger 16, cylinder by connection pin shaft by tractive unit
Body 5, right end cap 15, right end 13 generate moving downward relative to piston 9, and on the one hand the second preloaded spring 12 can be further
Compression absorbs the impact energy during vehicle launch, on the other hand, since cylinder body 5 is equivalent to the fortune of the generation of piston 9 to the left
Dynamic, it is left that the working fluid in the right working chamber 24 of vehicle bumper connector can flow to vehicle bumper connector by damping flow channel 23
In working chamber 25, damping drag is formed, the impact energy during vehicle launch is consumed, so, when vehicle rising by tractive unit
When dynamic inertia load is greater than the preload force of the second preloaded spring 12, vehicle bumper connector is equivalent in flexible state, vehicle
Buffer coupling absorbs the impact energy in towing vehicle braking process by the second preloaded spring 12, while passing through damping flow channel
Impact energy in 23 damping action consumption towing vehicle braking process, realizes the gradual braking of towing vehicle.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of vehicle bumper connector, it is characterised in that: the buffer coupling include left plunger (1), left piston bar (2),
Left end cap (3), left end (4), cylinder body (5), the first preloaded spring (6), the first spring base (7), first sleeve (8), piston
(9), the second casing (10), second spring seat (11), the second preloaded spring (12), right end (13), right piston bar (14), right end
Cover (15), right plunger (16)；
The left end of the cylinder body (5) is machined with left-hand thread hole, and right end is machined with right-hand thread hole, the right side in the left-hand thread hole of cylinder body (5)
Side is machined with the first cylindrical hole of cylinder body (34), and the bottom right side and cylinder body of the first cylindrical hole of cylinder body (34) form cylinder body first step
(30), the second cylindrical hole of cylinder body (29), the right side of the second cylindrical hole of cylinder body (29) are machined on the right side of cylinder body first step (30)
Bottom and cylinder body form cylinder body second step (31), radial above the middle part of the second cylindrical hole of cylinder body (29) to offer the first oiling
Hole (28), offer in the middle part of cylinder body (5) axially through cylinder inner bore (35), the left side processing in the right-hand thread hole of cylinder body (5)
There is the 4th cylindrical hole (18) of cylinder body, the left bottom and cylinder body of the 4th cylindrical hole (18) of cylinder body form the 4th step (33) of cylinder body,
Be machined with cylinder body third cylindrical hole (19) on the left of the 4th step (33) of cylinder body, the left bottom of cylinder body third cylindrical hole (19) with
Cylinder body forms cylinder body third step (32), radial above the middle part of cylinder body third cylindrical hole (19) to offer the second tank filler sleeve
(21)；The first plug (27) and associated seal are installed on first tank filler sleeve (28)；On second tank filler sleeve (21)
Second plug (20) and associated seal are installed；
Offered on the piston (9) axially through damping flow channel (23)；The left end and left piston bar (2) of the piston (9)
It links into an integrated entity, right end and the right piston bar (14) of piston (9) link into an integrated entity, and piston (9) is together with left piston bar (2) and right work
Stopper rod (14) is installed along in cylinder inner bore (35), is formed and is slidably matched between piston (9) and cylinder inner bore (35)；Described
For sleeve (8) sliding sleeve on left piston bar (2), right end pushes against the left side of piston (9)；It is opened on first spring base (7)
Equipped with several axially through the first oil-through-hole (26), the first spring base (7) sliding sleeve pacifies on left piston bar (2)
In the second cylindrical hole of cylinder body (29), the right side of the first spring base (7) pushes against cylinder body second step (31)；The left end
(4) sliding sleeve is on left piston bar (2), and is mounted in the first cylindrical hole of cylinder body (34), and the right side of left end (4) pushes against cylinder
Body first step (30) is equipped with sealing element, guidance tape, dustband between the inner hole and left piston bar (2) of left end (4), left
Sealing element is installed between the outer wall and the first cylindrical hole of cylinder body (34) of end (4)；The left end of first preloaded spring (6) is supported
It is fixed on the right part boss of left end (4), the abutting of the right end of the first preloaded spring (6) is sleeved on the first spring base (7)
On left part boss；The left end of the left end cap (3) and cylinder body (5) forms close threaded connection, and the right side of left end cap (3) compresses
In the left side of left end (4)；The left end of the left plunger (1) and left piston bar (2) forms close threaded connection；
For second casing (10) sliding sleeve on right piston bar (14), left end pushes against the right side of piston (9)；Second bullet
Offered on spring abutment (11) several axially through the second oil-through-hole (22), second spring seat (11) sliding sleeve be mounted in right piston
It on bar (14), and is mounted in cylinder body third cylindrical hole (19), the left side of second spring seat (11) pushes against cylinder body third step
(32)；Right end (13) sliding sleeve is mounted in the 4th cylindrical hole (18) of cylinder body, right end on right piston bar (14)
The left side of head (13) pushes against the 4th step (33) of cylinder body, is equipped with sealing between the inner hole and right piston bar (14) of right end (13)
Part, guidance tape, dustband are equipped with sealing element between the 4th cylindrical hole (18) of outer wall and cylinder body of right end (13)；Described
The right end abutting of two preloaded springs (12) is sleeved on the left part boss of right end (13), and the left end of the second preloaded spring (12) is supported
It is fixed on the right part boss of second spring seat (11)；The inside of the right end cap (15) offers right piston bar accommodating chamber
(17), right end cap (15) and the right end of cylinder body (5) form close threaded connection, and right end cap is pressed on right end on the left of (15)
(13) right side, the right side of right end cap (15) and right plunger (16) are integrally welded；The piston (9) is mounted on cylinder inner bore
(35) after, cylinder inner bore (35) is divided into the left working chamber of vehicle bumper connector (25) and the right working chamber of vehicle bumper connector
(24)；The left working chamber of vehicle bumper connector (25) and the right working chamber of vehicle bumper connector (24) and cylinder body second circle
Post holes (29) and third cylindrical hole (19) are each filled with working fluid in advance.
2. a kind of vehicle bumper connector according to claim 1, it is characterised in that: the damping flow channel (23) is provided with
The damping flow channel or the axial screw being provided on piston (9) outer circle wall that axial direction on piston (9) outer circle wall directly penetrates through
Revolve the damping flow channel of perforation.
3. a kind of vehicle bumper connector according to claim 1, it is characterised in that: the damping flow channel (23) is provided with
Piston (9) is internal.
4. a kind of vehicle bumper connector according to claim 1, it is characterised in that: the axial direction of the first sleeve (8)
Length is less than or equal to the right side of the first spring base (7) to the distance of piston (9) left side.
5. a kind of vehicle bumper connector according to claim 1, it is characterised in that: the axial direction of second casing (10)
Length is less than or equal to the left side of second spring seat (11) to the distance of piston (9) right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817568.6A CN107685746B (en) | 2017-09-12 | 2017-09-12 | A kind of vehicle bumper connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817568.6A CN107685746B (en) | 2017-09-12 | 2017-09-12 | A kind of vehicle bumper connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107685746A CN107685746A (en) | 2018-02-13 |
| CN107685746B true CN107685746B (en) | 2019-04-26 |
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ID=61156183
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710817568.6A Active CN107685746B (en) | 2017-09-12 | 2017-09-12 | A kind of vehicle bumper connector |
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| CN (1) | CN107685746B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945919A (en) * | 2020-08-13 | 2020-11-17 | 钱子凡 | Curved surface runner viscous damper |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102308422B1 (en) * | 2019-11-29 | 2021-10-07 | 한국철도기술연구원 | A bogie for a rubber-tired light rail vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL231118A (en) * | 1958-06-09 | |||
| JPH0780403B2 (en) * | 1989-11-16 | 1995-08-30 | ツェン ドン ツァオ | Bi-directional buffer traction coupling |
| CN200951775Y (en) * | 2006-08-11 | 2007-09-26 | 党庆国 | Damping tractor apparatus of pit car |
| CN201343038Y (en) * | 2008-12-20 | 2009-11-11 | 陈继侠 | Mining roadway vehicle-buffered carriage traction device |
| CN101698414B (en) * | 2009-11-09 | 2011-06-01 | 青岛四方车辆研究所有限公司 | Semi-permanent car coupler for light rail |
| CN104554329B (en) * | 2014-12-26 | 2017-07-21 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic vehicles buffer unit |
-
2017
- 2017-09-12 CN CN201710817568.6A patent/CN107685746B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945919A (en) * | 2020-08-13 | 2020-11-17 | 钱子凡 | Curved surface runner viscous damper |
| CN111945919B (en) * | 2020-08-13 | 2021-07-16 | 钱子凡 | Curved surface runner viscous damper |
Also Published As
| Publication number | Publication date |
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| CN107685746A (en) | 2018-02-13 |
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