CN105951639A - Counter-impact device - Google Patents
Counter-impact device Download PDFInfo
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- CN105951639A CN105951639A CN201610287532.7A CN201610287532A CN105951639A CN 105951639 A CN105951639 A CN 105951639A CN 201610287532 A CN201610287532 A CN 201610287532A CN 105951639 A CN105951639 A CN 105951639A
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- piston
- cylinder block
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- cylinder
- pore
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a counter-impact device and belongs to the field of buffering devices. An air cylinder body of the counter-impact device is provided with a cylinder body outer wall and a cylinder body inner wall. One end of a piston is in tight fit with the cylinder body inner wall. A piston shaft shoulder is in tight fit with the cylinder body outer wall. An exhausting mechanism is arranged on the piston. The other end of the piston is provided with a piston clamping sleeve. A spring used for resetting the piston is arranged between the air cylinder body and the piston. The piston shaft shoulder is pressed into the cylinder body outer wall to be fastened through a gland. The counter-impact device is good in buffering and energy absorbing effect, high in counter-impact capacity, casualty accidents can be effectively reduced through an expressway guardrail using the counter-impact device, and utilized plastic steel pipes are good in self-lubrication performance, resistant to corrosion, easy to maintain and long in service life.
Description
Present patent application is for Application No.: the divisional application of 2015101495171, the filing date of original application:
2015/3/31, invention and created name is: a kind of anti-percussion mechanism and use the freeway guardrail of this device.
Technical field
The present invention relates to buffer unit technical field, more particularly, it relates to a kind of anti-percussion mechanism.
Background technology
At present, China has been enter into the highway epoch, and highway is greatly promoted the development of national economy.In order to ensure row
Car safety, is fitted with safety barrier in highway both sides.Mostly the safety barrier that China is used is the ripple by column and rigidity
Shape protective plate form, when automobile is out of control knock protective plate after, this guardrail can avoid automobile to plough under the ditch of highway both sides
Or pour the dangerous situation generation that opposing lane is collided.But it was verified that above-mentioned safety barrier energy-absorbing effect is poor, corrugated sheet intensity
Low, substantially there is no pooling feature, under the impulsive force that automobile high-speed out of control is powerful, protective plate often can be caused to rupture, vapour out of control
Car pours opposing lane and collides, and causes car crash；Or protective plate is by blastic deformation, it is impossible to the protection effect before playing,
Need again to safeguard, change.On the other hand, losing compressive resistance and anti-collision effect to prevent protective plate from getting rusty, it is right often to need
Protective plate carries out mopping, processing of rust removing, wastes time and energy.Can the safety barrier of life-time service ensure to hit accordingly, it would be desirable to a kind of
People when hitting, car safety, protection guardrail itself is not by bigger damage simultaneously.
Through retrieval, number of patent application is: 201210432101.7, filing date: on November 2nd, 2012, innovation and creation name
Being referred to as: highway cushion bumper guardrail, this application case discloses a kind of highway cushion bumper guardrail, including guardrail board,
Connect column, connect buffering bracket, strengthen column, strengthen buffering bracket and built-in steel plate, wherein guardrail board by outer tube plate body,
Inner tube plate body, steel plate clamp barrel body and support bumper post are constituted, and forming ground floor is that the interior three layers of decompression formed of guardrail board are slow
Rushing honeycomb capsule, the second layer is the built-in steel plate of waveform of preparation in pressure-reducing cushioning honeycomb capsule in guardrail board, and third layer is that guardrail board is with each
Set between column and connect buffering bracket or strengthen three layers of buffer structure of buffering bracket.This patent formula is equivalent to waveform protective plate
Make a space structure, and set up buffer structure wherein, add the intensity of guardrail board, toughness and bounce so that it is
There is certain crashproof ability.But the impact strength that the guardrail board in the program can bear is limited, and column remains a need for holding
By bigger impact, easily cause column and damage；Guardrail board between two root posts is still rigidity, i.e. when one end is impacted,
The other end is because can not carry out effective Adjusting Shape and deform, in addition it is also necessary to improve further.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome that prior art high speed highway barrier buffering effect is poor, impact resistance is low and is difficult to dimension
The deficiency protected, it is provided that a kind of anti-percussion mechanism, technical scheme, the characteristic utilizing anti-blow cylinder self will impact
Power returns to be offset, and buffering effect is obvious, uses on guardrail, can effectively reduce the generation of casualty accident, and use Plastic Steel Pipe
Guardrail cross beams is safeguarded without mopping, and service life is long.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
The anti-percussion mechanism of one of the present invention, this anti-percussion mechanism includes that anti-blow cylinder, described anti-blow cylinder include cylinder
Body, piston, gland and piston cutting ferrule, described cylinder block is provided with in outer wall of cylinder block and inboard wall of cylinder block, described piston one end and cylinder body
Wall closely cooperates, and is provided with the piston shaft shoulder in the middle part of piston, and this piston shaft shoulder closely cooperates with outer wall of cylinder block, and arranges on piston
Exhaust gear, the other end of described piston is equipped with piston cutting ferrule；Being provided with spring between described cylinder block and piston, this spring is used for
Make piston reset；Described gland by piston shaft shoulder press-in outer wall of cylinder block and is threadeded with outer wall of cylinder block.
As further improvement of the present invention, described inboard wall of cylinder block is shorter than outer wall of cylinder block, between outer wall of cylinder block and inboard wall of cylinder block all
The even gusset that is interval with, is discharge chamber between adjacent webs, and inboard wall of cylinder block institute enclosure cavity body passes through bottom cavity and the aerofluxus of cylinder block
Chamber connects, and described spring one end and link of boards, the spring other end is connected with the piston shaft shoulder.
As further improvement of the present invention, described exhaust gear includes piston cavity, be connected with piston cavity respectively
One pore, the second pore and the 3rd pore, described piston cavity is provided in the blind hole of piston centre, and described first pore is arranged
Near one end of piston cutting ferrule on piston, described second pore and the 3rd pore are disposed in parallel on the downside of the piston shaft shoulder；Described work
Plug and inboard wall of cylinder block abutting end are provided with sealing ring.
As further improvement of the present invention, described outer wall of cylinder block periphery is provided with cylinder body shoulder block and connects screw thread, and connects screw thread
It is positioned at below cylinder body shoulder block.
As further improvement of the present invention, described piston cutting ferrule is connected with piston thread, and piston card puts and offers half envelope
Close circular hole.
A kind of freeway guardrail using anti-percussion mechanism of the present invention, including column and guardrail cross beams, on described column laterally
Equipped with anti-blow cylinder, guardrail cross beams is fixed by the anti-blow cylinder in two adjacent upright posts；Described anti-blow cylinder includes gas
Cylinder body, piston, gland and piston cutting ferrule, described cylinder block is provided with outer wall of cylinder block and inboard wall of cylinder block, outer wall of cylinder block and inboard wall of cylinder block
Between uniform intervals be provided with gusset, be discharge chamber between adjacent webs, the inboard wall of cylinder block institute enclosure cavity body bottom cavity by cylinder block
Connect with discharge chamber；Described piston one end closely cooperates with inboard wall of cylinder block, the other end of piston equipped with piston cutting ferrule, this piston card
Connect in set and have guardrail cross beams；Described outer wall of cylinder block periphery is provided with cylinder body shoulder block and connects screw thread, and connection screw thread is positioned at cylinder body gear
Below shoulder；Spring, spring one end and link of boards, the spring other end and piston shaft shoulder phase it is provided with between described cylinder block and piston
Even；Described gland by piston shaft shoulder press-in outer wall of cylinder block and is threadeded with outer wall of cylinder block.
As further improvement of the present invention, described piston being provided with exhaust gear, this exhaust gear includes piston cavity,
The first pore, the second pore and the 3rd pore being connected with piston cavity respectively, described first pore is arranged on piston close
One end of piston cutting ferrule, described second pore and the 3rd pore are disposed in parallel on the downside of the piston shaft shoulder.
As further improvement of the present invention, described column is channel-section steel, offers circular hole, described anti-blow cylinder on column
It is plugged in this circular hole and makes anti-blow cylinder be fixed on column by the clamp nut arranged with the cooperation being connected screw thread.
As further improvement of the present invention, described guardrail cross beams is Plastic Steel Pipe, and this Plastic Steel Pipe is connected in half envelope of piston cutting ferrule
Close in circular hole.
As further improvement of the present invention, described guardrail cross beams is divided into two rows to arrange.
3. beneficial effect
The technical scheme using the present invention to provide, compared with prior art, has the advantages that
(1) the anti-percussion mechanism of the one of the present invention, the structure using outer wall of cylinder block to be connected with inboard wall of cylinder block, piston is subject to
External impact force is transformed on piston again, makes anti-force offset with external impact force, and is let out further by exhaust gear
Can, it is highly resistant to external impact force, good buffer effect；
(2) the anti-percussion mechanism of the one of the present invention, the discharge chamber in exhaust gear respectively with the first pore, the second pore and the 3rd
Pore is connected, and when impulsive force causes more greatly the 3rd pore to be blocked by inboard wall of cylinder block, cylinder block internal pressure drastically raises, and carries
For bigger anti-force, so opposing external impact, strong shock resistance, and spring Rapid reset can be passed through, it is hardly damaged；
(3) the anti-percussion mechanism of the one of the present invention, when being applied to freeway guardrail use, is bolted and recoil is hit gas
Cylinder is fixed on column, and clamping guardrail cross beams on piston card set, exhaust gear, spring in anti-blow cylinder and hit
The anti-force formed when hitting constitutes multiple buffering, lets out energy mode, the generation of casualty accident when can effectively reduce automobile impacting, and
And reduce the impulsive force of column, the beneficially protection of infrastructure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-blow cylinder of the present invention；
Fig. 2 is the A-A direction sectional view in Fig. 1 of the present invention；
Fig. 3 is the main TV structure schematic diagram of the freeway guardrail using anti-percussion mechanism of the present invention；
Fig. 4 is the side-looking structural representation of the freeway guardrail using anti-percussion mechanism of the present invention；
Fig. 5 is the plan structure schematic diagram of the freeway guardrail using anti-percussion mechanism of the present invention.
Label declaration in schematic diagram:
1, column；2, guardrail cross beams；3, anti-blow cylinder；31, piston cutting ferrule；32, piston；321, the first pore；
322, piston cavity；323, the piston shaft shoulder；324, the second pore；325, the 3rd pore；326, sealing ring；33, gland；
34, cylinder block；341, cylinder body shoulder block；342, screw thread is connected；343, outer wall of cylinder block；344, discharge chamber；345, in cylinder body
Wall；346, bottom cavity；347, gusset；35, spring；4, clamp nut；5, sleeve pipe.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 1 and Fig. 2, the anti-percussion mechanism of one of the present embodiment, this anti-percussion mechanism mainly includes anti-blow cylinder 3, instead
Blow cylinder 3 includes cylinder block 34, piston 32, gland 33 and piston cutting ferrule 31, wherein: described cylinder block 34 is provided with cylinder
External wall 343 and inboard wall of cylinder block 345, described inboard wall of cylinder block 345 is shorter than outer wall of cylinder block 343, outer wall of cylinder block 343 and inboard wall of cylinder block
Between 345, uniform intervals is provided with gusset 347 (such as Fig. 2), is discharge chamber 344 between adjacent webs 347, inboard wall of cylinder block 345 institute
Enclosure cavity body is connected with discharge chamber 344, in its discharge chamber 344 sectional area summation is cylinder body by the bottom cavity 346 of cylinder block 34
Long-pending 0.8～1.2 times of 345 enclosure cavity body sections of wall, the present embodiment selects 0.9 times.Described piston 32 is installed in cylinder block 34,
This piston 32 one end closely cooperates with inboard wall of cylinder block 345, and installs sealing ring 326 on piston 32, to guarantee its sealing；
Being provided with the piston shaft shoulder 323 in the middle part of piston 32, this piston shaft shoulder 323 closely cooperates with outer wall of cylinder block 343, forms two compressions
Chamber.Being additionally provided with exhaust gear on piston 32, this exhaust gear makes internal compressed gas discharge, and utilizes damping hole principle, it is achieved
Buffer, let out and can act on；The other end of described piston 32 is threaded piston cutting ferrule 31, and this piston cutting ferrule 31 offers half
Close circular hole, be impacted object crossbeam for installation.It is provided with spring 35, this spring 35 between described cylinder block 34 and piston 32
One end is connected with gusset 347, and spring 35 other end is connected with the piston shaft shoulder 323, and this spring 35 1 aspect has buffering, lets out
Can act on, on the other hand can make piston 32 Rapid reset.The piston shaft shoulder 323 is pressed into outer wall of cylinder block 343 by described gland 33
Intracavity, gland 33 is threadeded with outer wall of cylinder block 343, makes spring 35 be in compressive state.Hit for the ease of installing this recoil
Cylinder 3, is provided with cylinder body shoulder block 341 and connects screw thread 342 in outer wall of cylinder block 343 periphery, and connection screw thread 342 is positioned at cylinder body gear
Below shoulder 341, can this anti-blow cylinder 3 be installed fixing by nut with coordinating of cylinder body shoulder block 341.
The exhaust gear of the present embodiment includes piston cavity 322, the first pore 321 of being connected with piston cavity 322 respectively,
Two pore 324 and the 3rd pores 325, wherein: piston cavity 322 is provided in the blind hole at piston 32 center, the first pore 321
Being arranged on piston 32 one end near piston cutting ferrule 31, described second pore 324 and the 3rd pore 325 are disposed in parallel in work
On the downside of the plug shaft shoulder 323, and the length that the second pore 324 is away from the piston shaft shoulder 323 is equal with its length away from the 3rd pore 325.
First above-mentioned pore the 321, second pore 324 and the 3rd pore 325 are all about piston 32 setting substantially symmetrical about its central axis.
When piston 32 is clashed into, piston 32 is quickly to cylinder block 34 basal sliding, and spring 35 is by compression energy-absorbing, cylinder
Air in body 34 is compressed, and gas pressure intensity increases, and forms anti-force and hinders piston 32 to continue displacement, compressed gas simultaneously
Entering piston cavity 322 by the second pore 324 and the 3rd pore 325, the gas of piston cavity 322 is again through the first pore
321 discharge, and under the damping action of exhaust gear, impact energy is consumed, it is achieved buffers, let out and can act on.
When impulsive force is bigger, within a short period of time, piston 32 was shifted by impact, and spring 35 and exhaust gear are formed more simultaneously
Big resistance, and carry out letting out energy, when the 3rd pore 325 is gradually blocked by inboard wall of cylinder block 345, capacity reduces, cylinder
Body 34 internal pressure raises further, has bigger anti-force.When the second pore 324 is also plugged, air cannot be arranged
Going out, the compressed air of closed environment can resist bigger impulsive force in cylinder block 34 strength range, thus forces piston 32
Stop displacement.If now keeping constant force to be applied on piston 32, then piston 32 is in poised state, will not lead because continuing aerofluxus
There is rigid shock in activation plug 32 and cylinder block 34；If impulsive force clash into after disappear, then piston 32 spring 35 act under by
Gradually recover initial condition, simultaneously by the first pore 321 air inlet, make inside and outside air pressure balance.
In conjunction with Fig. 3, Fig. 4 and Fig. 5, a kind of freeway guardrail using anti-percussion mechanism of the present embodiment, mainly by column 1,
The composition such as anti-blow cylinder 3 in anti-percussion mechanism and guardrail cross beams 2, described column 1 with the distance of about 2m along the most public
Road is installed, and common roadbed is installed with embedding manner, and bridge upper pillar stand 1 uses welding or docking mode to install, in the present embodiment
Column 1 is channel-section steel, offers upper and lower two circular holes on channel-section steel, and described anti-blow cylinder 3 is plugged in this circular hole and by setting
The clamp nut 4 put makes anti-blow cylinder 3 be fixed on column 1 with the cooperation being connected screw thread 342.In order to improve highway
The combination property of guardrail, uses Plastic Steel Pipe as guardrail cross beams 2, is installed in the semiclosed circular hole of piston cutting ferrule 31, and
Fixed by the anti-blow cylinder 3 in two adjacent upright posts 1, form two horizontally-arranged guardrail cross beams 2, reduce single anti-blow cylinder 3
Suffered power, it is possible to reach more preferable buffering effect.Plastic Steel Pipe is to be made up of plastic outside steel pipe, makes steel pipe be susceptible to external environment
Corrosion, it is not necessary to mopping is safeguarded, and Plastic Steel Pipe has from slip, can effectively reduce casualty accident.When two Plastic Steel Pipe docking,
Sleeve pipe is increased, to ensure fastness and the overall seriality of device of docking inside Plastic Steel Pipe.
During specifically used, investigating according to width of roadway, automobile typically can hit guardrail cross beams 2 in the range of 25 °～37 °,
Two horizontal Plastic Steel Pipe are hit, Plastic Steel Pipe surface make car slide forward rather than go out highway from slip.Plastic Steel Pipe
Stress makes piston 32 to column 1 displacement, utilizes the cushioning effect of anti-blow cylinder 3 to offset automobile impact force, and automobile is double
Guardrail cross beams 2 keeps off, and can only slide forward along guardrail cross beams 2, and the telescopic action of guardrail cross beams 2 makes guardrail cross beams 2 self
Destructive will not be occurred to deform, the destructive shock that similar common corrugated sheet guardrail causes because automobile is blocked in deformation will not occur.
This guardrail cross beams 2 being arranged on anti-blow cylinder 3 be not merely stop automobile plough under the ditch of highway both sides or other
Way, can give play to cushioning effect simultaneously, the rigid collision of automobile Yu guardrail cross beams 2 is converted into automobile along the guardrail being knocked
Crossbeam 2 slides, and the impulsive force suffered by column 1 reduces, and is difficult to lose, the beneficially maintenance of infrastructure after accident treatment；
Occupant also will not be clashed because of stopping suddenly of automobile, has ensured that the life security of personnel in car is to guard rail
Later maintenance simple, it is contemplated that long term growth, be suitable to promote the use of at home.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, shown in accompanying drawing yet
Simply one of embodiments of the present invention, actual structure is not limited thereto.So, if those of ordinary skill in the art
Enlightened by it, in the case of without departing from the invention objective, design the knot similar to this technical scheme without creative
Structure mode and embodiment, all should belong to protection scope of the present invention.
Claims (5)
1. an anti-percussion mechanism, this anti-percussion mechanism includes anti-blow cylinder (3), it is characterised in that: gas is hit in described recoil
Cylinder (3) includes cylinder block (34), piston (32), gland (33) and piston cutting ferrule (31), and described cylinder block (34) sets
Having outer wall of cylinder block (343) and inboard wall of cylinder block (345), described piston (32) one end closely cooperates with inboard wall of cylinder block (345),
Being provided with the piston shaft shoulder (323) at piston (32) middle part, this piston shaft shoulder (323) closely cooperates with outer wall of cylinder block (343),
And exhaust gear is set on piston (32), the other end of described piston (32) is equipped with piston cutting ferrule (31)；Described cylinder block
(34) and be provided with spring (35) between piston (32), this spring (35) is used for making piston (32) reset；Described gland (33)
By the piston shaft shoulder (323) press-in outer wall of cylinder block (343) and threaded with outer wall of cylinder block (343).
The anti-percussion mechanism of one the most according to claim 1, it is characterised in that: described inboard wall of cylinder block (345) is shorter than cylinder
External wall (343), between outer wall of cylinder block (343) and inboard wall of cylinder block (345), uniform intervals is provided with gusset (347), adjacent muscle
It is discharge chamber (344) between plate (347), inboard wall of cylinder block (345) the institute enclosure cavity body bottom cavity (346) by cylinder block (34)
Connecting with discharge chamber (344), described spring (35) one end is connected with gusset (347), spring (35) other end and piston
The shaft shoulder (323) is connected.
The anti-percussion mechanism of one the most according to claim 1, it is characterised in that: described exhaust gear includes piston cavity
(322), the first pore (321), the second pore (324) and the 3rd pore (325) being connected with piston cavity (322) respectively,
Described piston cavity (322) is provided in the blind hole at piston (32) center, and described first pore (321) is arranged on piston (32)
Upper one end near piston cutting ferrule (31), described second pore (324) and the 3rd pore (325) are disposed in parallel in piston shaft
Shoulder (323) downside；Described piston (32) and inboard wall of cylinder block (345) abutting end are provided with sealing ring (326).
4. according to the anti-percussion mechanism of the one described in Claims 2 or 3, it is characterised in that: described outer wall of cylinder block (343) is outward
It is provided with cylinder body shoulder block (341) week and connects screw thread (342), and connection screw thread (342) is positioned at cylinder body shoulder block (341) lower section.
The anti-percussion mechanism of one the most according to claim 4, it is characterised in that: described piston cutting ferrule (31) and piston (32)
Threaded, and offer semiclosed circular hole on piston cutting ferrule (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287532.7A CN105951639B (en) | 2015-03-31 | 2015-03-31 | A kind of anti-percussion mechanism |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287532.7A CN105951639B (en) | 2015-03-31 | 2015-03-31 | A kind of anti-percussion mechanism |
| CN201510149517.1A CN104727251B (en) | 2015-03-31 | 2015-03-31 | Counter-impact device and highway guardrail provided with device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149517.1A Division CN104727251B (en) | 2015-03-31 | 2015-03-31 | Counter-impact device and highway guardrail provided with device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105951639A true CN105951639A (en) | 2016-09-21 |
| CN105951639B CN105951639B (en) | 2018-08-28 |
Family
ID=53451613
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149517.1A Expired - Fee Related CN104727251B (en) | 2015-03-31 | 2015-03-31 | Counter-impact device and highway guardrail provided with device |
| CN201610287532.7A Expired - Fee Related CN105951639B (en) | 2015-03-31 | 2015-03-31 | A kind of anti-percussion mechanism |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149517.1A Expired - Fee Related CN104727251B (en) | 2015-03-31 | 2015-03-31 | Counter-impact device and highway guardrail provided with device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104727251B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062247A (en) * | 2021-04-08 | 2021-07-02 | 朱剑霞 | Can be at highway rail guard of bradyseism when striking |
| CN115233649A (en) * | 2022-08-31 | 2022-10-25 | 中国路桥工程有限责任公司 | Large-area foundation soil reinforced hydraulic tamper |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436614B (en) * | 2016-11-14 | 2018-09-28 | 黄成勇 | It is automatic to reinforce guardrail |
| CN108343009B (en) * | 2018-01-15 | 2020-06-05 | 安徽雄风防护设施有限公司 | Guardrail with crashproof function |
| CN110184974B (en) * | 2019-05-24 | 2020-04-24 | 武汉理工大学 | Highway energy dissipation speed reducer, device and system |
| CN112458970A (en) * | 2020-11-30 | 2021-03-09 | 安徽铭心金属制品有限公司 | Road traffic buffering protector |
| CN113047167B (en) * | 2021-03-25 | 2022-12-09 | 山东交通职业学院 | Anti-collision protection fence for road and bridge |
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| GB788496A (en) * | 1956-03-16 | 1958-01-02 | Pablo Gabriel Ghilino | Improved shock-absorber |
| CN2121570U (en) * | 1992-03-11 | 1992-11-11 | 杭州商学院 | Hydraulic damper |
| CN2490023Y (en) * | 2001-06-06 | 2002-05-08 | 徐州矿物集团有限公司机电设备分公司 | Hydraulic anti-collision safety beam |
| CN201281153Y (en) * | 2008-11-06 | 2009-07-29 | 福建万新发电设备有限公司 | Amortization type vacuum destroy valve |
| CN103410903A (en) * | 2013-07-22 | 2013-11-27 | 宁波鑫鑫鑫寅电气有限公司 | Damping rubber buffer |
| CN204510101U (en) * | 2015-03-31 | 2015-07-29 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | A kind of anti-percussion mechanism and use the freeway guardrail of this device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727945Y (en) * | 2004-07-01 | 2005-09-21 | 广东省顺德开关厂有限公司 | Oil buffer for circuit breaker |
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2015
- 2015-03-31 CN CN201510149517.1A patent/CN104727251B/en not_active Expired - Fee Related
- 2015-03-31 CN CN201610287532.7A patent/CN105951639B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB788496A (en) * | 1956-03-16 | 1958-01-02 | Pablo Gabriel Ghilino | Improved shock-absorber |
| CN2121570U (en) * | 1992-03-11 | 1992-11-11 | 杭州商学院 | Hydraulic damper |
| CN2490023Y (en) * | 2001-06-06 | 2002-05-08 | 徐州矿物集团有限公司机电设备分公司 | Hydraulic anti-collision safety beam |
| CN201281153Y (en) * | 2008-11-06 | 2009-07-29 | 福建万新发电设备有限公司 | Amortization type vacuum destroy valve |
| CN103410903A (en) * | 2013-07-22 | 2013-11-27 | 宁波鑫鑫鑫寅电气有限公司 | Damping rubber buffer |
| CN204510101U (en) * | 2015-03-31 | 2015-07-29 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | A kind of anti-percussion mechanism and use the freeway guardrail of this device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062247A (en) * | 2021-04-08 | 2021-07-02 | 朱剑霞 | Can be at highway rail guard of bradyseism when striking |
| CN115233649A (en) * | 2022-08-31 | 2022-10-25 | 中国路桥工程有限责任公司 | Large-area foundation soil reinforced hydraulic tamper |
| CN115233649B (en) * | 2022-08-31 | 2023-11-10 | 中国路桥工程有限责任公司 | Hydraulic rammer compactor for reinforcing large-area foundation soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105951639B (en) | 2018-08-28 |
| CN104727251A (en) | 2015-06-24 |
| CN104727251B (en) | 2017-01-18 |
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