CN212270788U - Thin-wall metal pipe expanding type anti-collision buffer cushion - Google Patents
Thin-wall metal pipe expanding type anti-collision buffer cushion Download PDFInfo
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- CN212270788U CN212270788U CN202020234401.4U CN202020234401U CN212270788U CN 212270788 U CN212270788 U CN 212270788U CN 202020234401 U CN202020234401 U CN 202020234401U CN 212270788 U CN212270788 U CN 212270788U
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- expansion pipe
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- wall metal
- expanding
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Abstract
The utility model belongs to the technical field of the anticollision buffering and specifically relates to a thin wall tubular metal resonator expanding crash cushion, include: 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 utility model belongs to the technical field of the anticollision buffering and specifically relates to a thin wall tubular metal resonator expanding crash cushion.
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.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: solve all parts of current crash cushion on the one hand and participate in the deformation energy-absorbing, in case the collision must whole change, the problem that accident economic cost is high, on the other hand solves the collision back, crash cushion filler material scatters in great region, the problem of road security and environmental cleanliness has been reduced, the utility model provides a thin wall tubular metal resonator expanding crash cushion and manufacturing method, the frame roof beam, crash cushion frame is constituteed to collapsible guide bar, the centre sets up the extension tube subassembly, utilize the extension tube subassembly energy-absorbing, only need change the extension tube subassembly behind the collision accident to partly impaired frame roof beam and shrink guide bar plastic, very big reduction accident loss, collision rubbish can not be made to the blotter structure of no filler simultaneously, do not influence the security and the cleanliness of highway crossing.
The utility model provides a technical scheme that its technical problem adopted is: 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 after the collision accident to partly impaired frame roof beam and shrink guide bar plastic, very big reduction accident loss, collision rubbish can not be made to the blotter structure of no filler 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.
The method of the fixed connection of the utility model includes but is not limited to screw fixation, welding fixation, riveting fixation.
The utility model has the advantages that: the utility model provides a thin wall tubular metal resonator expanding crash cushion, include: 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. On one hand, the problems that all parts of the existing crash cushion are completely involved in deformation energy absorption, once the crash cushion is collided, the economic cost of the accident is high, and the deformation energy absorption resistance of the honeycomb aluminum energy absorption block and the filling material cannot be accurately calculated and accurately controlled are solved, and on the other hand, the problem that the crash cushion filling material is scattered in a larger area after the crash cushion is collided, and the road safety and the environmental cleanliness are reduced is solved. 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 present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a schematic view of the stent assembly of the present invention;
fig. 3 is a structural diagram of the frame beam according to the present invention;
FIG. 4 is a cross-sectional view of the thin-walled metal expansion pipe of the present invention inserted into the mating end of the plunger;
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 drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components 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.
The utility model relates to a thin wall tubular metal resonator expanding crash cushion mounting method, including following step:
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 of the fixed connection of the utility model includes but is not limited to screw fixation, welding fixation, riveting fixation.
The utility model discloses the theory of operation:
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, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made 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 (8)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020234401.4U CN212270788U (en) | 2020-02-28 | 2020-02-28 | Thin-wall metal pipe expanding type anti-collision buffer cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020234401.4U CN212270788U (en) | 2020-02-28 | 2020-02-28 | Thin-wall metal pipe expanding type anti-collision buffer cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212270788U true CN212270788U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020234401.4U Expired - Fee Related CN212270788U (en) | 2020-02-28 | 2020-02-28 | Thin-wall metal pipe expanding type anti-collision buffer cushion |
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| Country | Link |
|---|---|
| CN (1) | CN212270788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270632A (en) * | 2020-02-28 | 2020-06-12 | 江苏高速公路工程养护有限公司 | Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof |
-
2020
- 2020-02-28 CN CN202020234401.4U patent/CN212270788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270632A (en) * | 2020-02-28 | 2020-06-12 | 江苏高速公路工程养护有限公司 | Thin-wall metal pipe expanding type anti-collision buffer cushion and assembling method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |