CN111270632A - Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof - Google Patents
Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof Download PDFInfo
- Publication number
- CN111270632A CN111270632A CN202010128598.8A CN202010128598A CN111270632A CN 111270632 A CN111270632 A CN 111270632A CN 202010128598 A CN202010128598 A CN 202010128598A CN 111270632 A CN111270632 A CN 111270632A
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- expansion pipe
- thin
- wall metal
- frame
- frame beam
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 73
- 239000002184 metal Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims description 11
- 210000004907 gland Anatomy 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims description 23
- 238000000429 assembly Methods 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 9
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 239000006260 foam Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
-
- 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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to the field of anti-collision buffering, in particular to an expansion type anti-collision buffering cushion with a thin-wall metal tube, which comprises: the frame beam comprises more than two cross beams and two side plates, mounting holes are formed in the two ends of each side plate respectively, the expansion pipe assembly comprises a punch rod, a gland and a thin-wall metal expansion pipe, the punch rod is inserted into and connected with the thin-wall metal expansion pipe and fixedly connected with the thin-wall metal expansion pipe through the gland, the two ends and the middle of the expansion pipe assembly are fixed to the three frame beams respectively, and the retractable guide rods can extend in the axial direction; has the advantages that: the problem of all parts of mainstream crash pad all participate in the deformation energy-absorbing, in case the collision basically all scrap, accident economic cost is high is solved, the crash pad of plastics anticollision bucket filling buffering foam structure has also been solved simultaneously, and crash pad material scatters in great region when the collision takes place, has reduced security and environmental cleanliness's problem.
Description
Technical Field
The invention relates to the field of anti-collision buffering, in particular to an expansion type anti-collision buffering cushion with a thin-wall metal tube and an assembling method thereof.
Background
The collision-proof buffer cushion is mainly applied to two aspects in the field of vehicle safe operation, 1, in the highway maintenance operation, a device fixed at the tail part of an operating vehicle reduces the collision loss of an accident vehicle and ensures the safety of personnel by buffering and absorbing energy when other vehicles collide with the tail; 2. the anti-collision cushion is placed in dangerous areas such as a main line diversion end of an expressway, a ramp outlet and the like, when a vehicle is out of control and collides with the dangerous areas, the anti-collision cushion can correct the driving direction in time due to the performance of the anti-collision cushion, and eliminate most collision energy, so that the safety of drivers and passengers and the safety of the vehicle are ensured.
The existing vehicle-mounted anti-collision buffer cushion has two structures: 1) the metal frame is combined with the honeycomb aluminum energy absorption block, and the impact energy of the vehicle is absorbed through the deformation of the metal frame pipe fitting and the honeycomb aluminum energy absorption block; 2) the metal frame is combined with the thin-wall metal barrel filled with the buffer material, and the impact energy of the vehicle is absorbed through the deformation of the metal frame pipe fitting, the thin-wall metal barrel and the filling material. Most of the honeycomb aluminum energy absorption blocks adopt imported products, the price is high, all parts participate in deformation energy absorption, and once the honeycomb aluminum energy absorption blocks and the filling materials are collided and need to be integrally replaced, the deformation energy absorption resistance of the honeycomb aluminum energy absorption blocks and the filling materials cannot be accurately calculated and accurately controlled.
The anti-collision pad for the highway crossing is divided into a guiding anti-collision pad and a non-guiding anti-collision pad, is arranged at the traffic diversion position of the highway or the front end of a barrier, and has two structures, namely 1) a metal frame is combined with thin-wall metal filled with a buffer material and a fixed upright post (which can guide); 2) the plastic crash bucket incorporates a cushioning filler (non-oriented). All parts participate in deformation energy absorption, and once collision happens, the parts must be replaced integrally, and crash cushion materials are scattered in a larger area, so that the road safety and the environmental cleanliness are reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a thin-wall metal tube expansion type crash cushion and an assembly method thereof, which solve the problems that all parts of the existing crash cushion are completely deformed and absorbed energy, and once the collision is carried out, the whole crash cushion needs to be replaced, the economic cost of the accident is high, and on the other hand, solve the problems that after the collision, the filling material of the crash cushion is scattered in a larger area, and the safety and the environmental cleanliness of the road are reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: a thin-walled metal tube expandable crash cushion comprising: the frame beam comprises more than two cross beams and two side plates, the frame beam is of a frame structure, mounting holes are formed in two ends of each side plate, the expansion pipe assembly comprises a punch rod, a gland and a thin-wall metal expansion pipe, the punch rod is inserted into and connected with the thin-wall metal expansion pipe and fixedly connected with the thin-wall metal expansion pipe through the gland, and the retractable guide rod can extend in the axial direction; the retractable guide rod is fixedly connected to the outer sides of the two side plates of the frame beam, two ends of the expansion pipe assembly are respectively and fixedly connected to the two frame beams through the mounting holes, the insertion position of the thin-wall metal expansion pipe and the punch rod of the expansion pipe assembly penetrates through the mounting holes in the frame beams, and the thin-wall metal expansion pipe and the punch rod are fixed together through the gland; four expansion pipe assemblies are arranged between every two frame beams and are fixed at four corners of the frame beams through the mounting holes respectively.
Due to the design, the punch rod is inserted into the thin-wall metal expansion pipe after being impacted, the inner diameter of the expansion pipe is enlarged, and collision energy is absorbed when the expansion pipe deforms. The retractable guide rods absorb lateral force to ensure normal insertion of the plunger, and meanwhile, when a vehicle obliquely collides with the side face of the crash cushion, the two retractable guide rods on the side face stop the vehicle and guide the vehicle to the running direction. Utilize the expansion pipe subassembly energy-absorbing, only need change the expansion pipe subassembly behind the collision accident to partly impaired frame roof beam and shrink guide bar plastic, very big reduction accident loss, the blotter structure of no filler can not assemble collision rubbish simultaneously, does not influence the security and the cleanliness of highway crossing. The system is composed of a plurality of expansion pipe assemblies, the retractable guide rods and the frame beams, the number of each part can be increased or decreased according to actual requirements, and the system is simple to install, flexible, convenient and high in universality.
Specifically, four expansion pipe assemblies are arranged between the two former frame beams, and one expansion pipe assembly is arranged at each corner of each frame beam; and eight expansion pipe assemblies are arranged between every two frame beams behind the second frame beam, and two expansion pipe assemblies are arranged at each corner of each frame beam. The structural design has high structural stability and high expansion and energy absorption effects and performance-to-cost ratio.
Specifically, one end of the thin-wall metal expansion pipe is in a horn shape, a fixed flange disc is arranged at the end part of the thin-wall metal expansion pipe, and one end, in inserting connection and matching, of the punch rod and the thin-wall metal expansion pipe is in a conical shape.
Specifically, the number of the contraction guide rods is four, and the contraction guide rods are respectively fixed on the outer sides of four corner edges of the frame beam.
Specifically, the extension tube assembly further includes a first fixing seat, and both ends of the first fixing seat are connected to the mounting holes of the two frame beams through the first fixing seat, respectively.
Specifically, the retractable guide bar is fixedly connected to the frame beam through the second fixed seat.
Specifically, the number of the frame beams is 5, the number of the expansion pipe assemblies is 16, 4 expansion pipe assemblies are fixed between the two former frame beams, and 4 expansion pipe assemblies are added between every two frame beams behind the second frame beam. This design is a common modality.
Specifically, the first fixing seat is T-shaped, the upper portion of the first fixing seat is a connecting surface with a screw hole, and a positioning pin is arranged at the lower end of the first fixing seat.
An assembly method of a thin-wall metal tube expansion type crash cushion comprises the following steps:
s1: fixedly connecting the retractable guide rods to the outer sides of two side plates of the frame beam to obtain a frame of the thin-wall metal tube expansion type anti-collision cushion pad;
s2: fixing the non-insertion end of the punch rod in the mounting hole of the frame beam, wherein the insertion end penetrates through the mounting hole of the frame beam;
s3: sleeving the gland flange surface at the inserting end of the punch rod by the side plate, wherein the inserting end of the thin-wall metal expansion pipe is overlapped and matched with the inserting end of the punch rod, and the non-inserting end of the thin-wall metal expansion pipe penetrates through the mounting hole of the frame beam;
s4: fixedly connecting the flange surface of the inserting end of the thin-wall metal expansion pipe, the gland and the side plate together;
s5: fixedly connecting the non-inserting end of the thin-wall metal expansion pipe;
s6: repeating the steps of S2-S5 to install the remaining stent assemblies, respectively.
The method for fixing the connection comprises but is not limited to screw fixation, welding fixation and riveting fixation.
The invention has the beneficial effects that: the invention provides an expanding crash cushion of a thin-wall metal tube, which comprises: the frame beam comprises more than two cross beams and two side plates, the frame beam is of a frame structure, mounting holes are formed in two ends of each side plate, the expansion pipe assembly comprises a punch rod, a gland and a thin-wall metal expansion pipe, the punch rod is inserted into and connected with the thin-wall metal expansion pipe and fixedly connected with the thin-wall metal expansion pipe through the gland, and the retractable guide rod can extend in the axial direction; the retractable guide rod is fixedly connected to the outer sides of the two side plates of the frame beam, two ends of the expansion pipe assembly are respectively and fixedly connected to the two frame beams through the mounting holes, the insertion position of the thin-wall metal expansion pipe and the punch rod of the expansion pipe assembly penetrates through the mounting holes in the frame beams, and the thin-wall metal expansion pipe and the punch rod are fixed together through the gland; four expansion pipe assemblies are arranged between every two frame beams and are fixed at four corners of the frame beams through the mounting holes respectively. The invention provides a thin-wall metal tube expanding type anti-collision buffer cushion and an assembly method thereof, wherein the frame beam and a retractable guide rod form an anti-collision buffer cushion frame, an expansion tube component is arranged in the middle of the frame beam and the retractable guide rod, the expansion tube component is used for absorbing energy, only the expansion tube component needs to be replaced after a collision accident occurs, and the expansion tube component shapes partial damaged frame beams and the retractable guide rods, so that the accident loss is greatly reduced, and meanwhile, the buffer cushion structure without fillers can not be assembled with collision garbage, the safety and the cleanliness of the highway crossing are not influenced, and the retractable guide rod has the functions of guiding the running direction of the vehicle and guiding the inserting direction of the punch in the metal expansion pipe. In addition, the frame beam and the retractable guide rod are made of high-strength materials, the compression resistance is high, the expansion pipe assembly is machined by a machine tool, the size precision is controllable, the deformation resistance is controllable, and the price is low.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is a structural view of the stent assembly of the present invention;
FIG. 3 is a block diagram of a frame beam according to the present invention;
FIG. 4 is a cross-sectional view of the insertion mating end of the thin-walled metal expansion tube and the punch of the present invention;
in the figure: 1. a frame beam; 2. a stent assembly; 3. a retractable guide bar; 11. mounting holes; 13. a side plate; 14. a cross beam; 21. a gland; 22. punching; 23. a first fixed seat; 24. a thin-walled metal expansion tube; 31. a second fixed seat; 241. and (5) fixing a flange plate.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example (b):
as shown in fig. 1, 2 and 3, an expanding crash cushion of a thin-walled metal tube comprises: the frame beam comprises a frame beam 1, an expansion pipe assembly 2 and a retractable guide rod 3, wherein the frame beam 1 comprises more than two cross beams 14 and two side plates 13 and is of a frame structure, mounting holes 11 are respectively formed in two ends of each side plate, the expansion pipe assembly 2 comprises a punch rod 22, a gland 21 and a thin-wall metal expansion pipe 24, the punch rod 22 is inserted into and connected with the thin-wall metal expansion pipe 24 and fixedly connected with the thin-wall metal expansion pipe 24 through the gland 21, and the retractable guide rod 3 can extend in the axial direction;
the retractable guide rod 3 is fixedly connected to the outer sides of the two side plates 13 of the frame beam 1, two ends of the expansion pipe assembly 2 are respectively and fixedly connected to the two frame beams 1 through the mounting holes 11, the insertion position of the thin-wall metal expansion pipe 24 and the punch rod 22 of the expansion pipe assembly 2 passes through the mounting holes 11 on the frame beam 1, and the thin-wall metal expansion pipe 24 and the punch rod 22 are fixed together by the gland 21; four expansion pipe assemblies 2 are arranged between every two frame beams 1 and are fixed at four corners of the frame beams 1 through the mounting holes 11 respectively.
Preferably, four expansion pipe assemblies 2 are arranged between the two former frame beams 1, and one expansion pipe assembly is arranged at each corner of each frame beam 1; and eight expansion pipe assemblies 2 are arranged between every two frame beams 1 behind the second frame beam 1, and two expansion pipe assemblies are arranged at each corner of the frame beams 1.
Preferably, one end of the thin-wall metal expansion pipe 24 is in a horn shape, the end part of the thin-wall metal expansion pipe is provided with a fixed flange 241, and one end of the punch rod 22, which is inserted and matched with the thin-wall metal expansion pipe 24, is in a cone shape.
Preferably, the number of the retractable guide rods 3 is four, and the retractable guide rods are respectively fixed on the outer sides of four corner edges of the frame beam 1.
Preferably, the extension pipe assembly 2 further includes a first fixing seat 23, both ends of which are connected to the mounting holes 11 of the two frame girders 1 through the first fixing seats 23, respectively.
Preferably, a second fixed seat 31 is further included, and the retractable guide bar 3 is fixedly connected to the frame beam 1 through the second fixed seat 31.
Preferably, the number of the frame beams 1 is 5, the number of the expansion pipe assemblies 2 is 16, 4 expansion pipe assemblies 2 are fixed between the two former frame beams 1, and 4 expansion pipe assemblies 2 are added between every two frame beams 1 behind the second frame beam 1.
Preferably, the first fixing seat 23 is T-shaped, the upper portion is a normal connection surface with a screw hole, and the lower end is provided with a positioning pin.
A method for assembling an expanding crash cushion of a thin-wall metal tube comprises the following steps:
s1: fixedly connecting the retractable guide rod 3 to the outer sides of the two side plates 13 of the frame beam 1 through a second fixed seat 31 to obtain a frame of the thin-wall metal tube expansion type crash cushion;
s2: fixing the non-insertion end of the punch stem 22 in the mounting hole 11 of the frame beam 1 through a first fixing seat 23, wherein the insertion end in a guide cone shape penetrates through the mounting hole 11 of the other frame beam 1;
s3: sleeving the flange surface of the gland 21 close to the side plate 13 at the guide conical insertion end of the punch rod 22, overlapping and matching the insertion end of the thin-wall metal expansion pipe 24 with the insertion end of the punch rod 22, abutting the flange plate of the gland 21, the flange surface 241 of the insertion end of the thin-wall metal expansion pipe and the side plate 13 against each other, and penetrating the non-insertion end of the thin-wall metal expansion pipe 24 through the mounting hole 11 of the frame beam 1;
s4: fixedly connecting the flange surface 241 of the inserting end of the thin-wall metal expansion pipe 24, the gland 21 and the side plate 13 together through screws;
s5: the non-insertion end of the thin-wall metal expansion pipe 24 is fixedly connected with a first fixed seat 23;
s6: repeating the steps S2-S5 to install the remaining stent assemblies 2, respectively.
The method for fixing the connection comprises but is not limited to screw fixation, welding fixation and riveting fixation.
The working principle of the invention is as follows:
the guide taper insertion end of the punch rod is inserted into the interior of the expansion pipe and is coincided with the taper surface of the expansion pipe, and the punch rod is fixed in the expansion pipe by the pressing cover. When a vehicle impacts the front surface of the frame beam, the impact rod is inserted into the thin-wall metal expansion pipe after receiving impact force, the inner diameter of the expansion pipe is enlarged, and collision energy is absorbed when the expansion pipe deforms. In addition, the retractable guide rod absorbs lateral force to ensure normal insertion of the punch rod; when the vehicle obliquely impacts the side surface of the crash cushion, the two retractable guide rods on the side surface stop the vehicle and guide the vehicle to the driving direction.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. An expanded crash cushion of thin-walled metal tubing comprising: the frame beam (1) comprises more than two cross beams (14) and two side plates (13) and is of a frame structure, mounting holes (11) are formed in two ends of each side plate respectively, the expansion pipe assembly (2) comprises a punch rod (22), a gland (21) and a thin-wall metal expansion pipe (24), the punch rod (22) is inserted into and connected with the thin-wall metal expansion pipe (24) and fixedly connected with the thin-wall metal expansion pipe through the gland (21), and the retractable guide rod (3) can extend in the axial direction;
the retractable guide rod (3) is fixedly connected to the outer sides of the two side plates (13) of the frame beam (1), two ends of the expansion pipe assembly (2) are fixedly connected to the two frame beams (1) through the mounting holes (11), the insertion position of the thin-wall metal expansion pipe (24) and the punch rod (22) of the expansion pipe assembly (2) penetrates through the mounting holes (11) in the frame beam (1), and the thin-wall metal expansion pipe (24) and the punch rod (22) are fixed together through the gland (21);
four expansion pipe assemblies (2) are arranged between every two frame beams (1) and are fixed at four corners of the frame beams (1) through the mounting holes (11) respectively.
2. The expanding crash cushion of claim 1 wherein: four expansion pipe assemblies (2) are arranged between the two front frame beams (1), and one expansion pipe assembly is arranged at each corner of each frame beam (1); and after the second frame beam (1), eight expansion pipe assemblies (2) are arranged between every two frame beams (1), and two expansion pipe assemblies are arranged at each corner of each frame beam (1).
3. The expanding crash cushion of claim 1 wherein: one end of the thin-wall metal expansion pipe (24) is in a horn shape, a fixing flange plate (241) is arranged at the end part of the thin-wall metal expansion pipe, and one end, inserted and matched with the thin-wall metal expansion pipe (24), of the punch rod (22) is in a conical shape.
4. The expanding crash cushion of claim 1 wherein: the number of the retractable guide rods (3) is four, and the retractable guide rods are respectively fixed on the outer sides of four corner edges of the frame beam (1).
5. The expanding crash cushion of claim 1 wherein: the expansion pipe assembly (2) further comprises a first fixed seat (23), and two ends of the first fixed seat are connected to the mounting holes (11) of the two frame beams (1) through the first fixed seat (23) respectively.
6. The expanding crash cushion of claim 1 wherein: the retractable guide rod is characterized by further comprising a second fixed seat (31), and the retractable guide rod (3) is fixedly connected to the frame beam (1) through the second fixed seat (31).
7. The expanding crash cushion of claim 2 wherein: frame roof beam (1) quantity is 5, expansion pipe subassembly (2) quantity is 16, preceding two it is fixed 4 between frame roof beam (1) expansion pipe subassembly (2), the second per two behind frame roof beam (1) increase 4 between frame roof beam (1) expansion pipe subassembly (2).
8. The expanding crash cushion of claim 5 wherein: the first fixing seat (23) is T-shaped, the upper portion of the first fixing seat is a flange face with a screw hole, and a positioning pin is arranged at the lower end of the first fixing seat.
9. The method of assembling an expanding crash cushion of any one of claims 1 through 8, wherein: the method comprises the following steps:
s1: fixedly connecting the retractable guide rods (3) to the outer sides of two side plates (13) of the frame beam (1) to obtain a frame of the thin-wall metal tube expansion type crash cushion;
s2: fixing the non-insertion end of the punch rod (22) in the mounting hole (11) of the frame beam (1), wherein the insertion end penetrates through the mounting hole (11) of the other frame beam (1);
s3: sleeving the flange surface of the gland (21) close to the side plate (13) at the inserting end of the punch rod (22), overlapping and matching the inserting end of the thin-wall metal expansion pipe (24) with the inserting end of the punch rod (22), and penetrating the non-inserting end of the thin-wall metal expansion pipe (24) through the mounting hole (11) of the frame beam (1);
s4: fixedly connecting a flange surface (241) of the inserting end of the thin-wall metal expansion pipe (24), the gland (21) and the side plate (13) together;
s5: the non-plug end of the thin-wall metal expansion pipe (24) is fixedly connected;
s6: repeating the steps S2-S5 to install the remaining stent assemblies (2), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010128598.8A CN111270632A (en) | 2020-02-28 | 2020-02-28 | Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010128598.8A CN111270632A (en) | 2020-02-28 | 2020-02-28 | Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111270632A true CN111270632A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010128598.8A Pending CN111270632A (en) | 2020-02-28 | 2020-02-28 | Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof |
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| Country | Link |
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| CN (1) | CN111270632A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101645223B1 (en) * | 2015-05-06 | 2016-08-03 | 권처현 | Vehicle's barrier |
| CN206986796U (en) * | 2017-06-05 | 2018-02-09 | 广州北环高速公路有限公司 | Point band opening prestressed cable anti-collision movable guardrail in one kind |
| CN208733538U (en) * | 2018-08-27 | 2019-04-12 | 北京华路安交通科技有限公司 | A kind of highway crash mat structure for filling energy-absorbing foam |
| CN212270788U (en) * | 2020-02-28 | 2021-01-01 | 江苏高速公路工程养护有限公司 | Thin-wall metal pipe expanding type anti-collision buffer cushion |
-
2020
- 2020-02-28 CN CN202010128598.8A patent/CN111270632A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101645223B1 (en) * | 2015-05-06 | 2016-08-03 | 권처현 | Vehicle's barrier |
| CN206986796U (en) * | 2017-06-05 | 2018-02-09 | 广州北环高速公路有限公司 | Point band opening prestressed cable anti-collision movable guardrail in one kind |
| CN208733538U (en) * | 2018-08-27 | 2019-04-12 | 北京华路安交通科技有限公司 | A kind of highway crash mat structure for filling energy-absorbing foam |
| CN212270788U (en) * | 2020-02-28 | 2021-01-01 | 江苏高速公路工程养护有限公司 | Thin-wall metal pipe expanding type anti-collision buffer cushion |
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