CN217048811U - Commercial car driver's cabin bottom plate longeron energy-absorbing device - Google Patents
Commercial car driver's cabin bottom plate longeron energy-absorbing device Download PDFInfo
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- CN217048811U CN217048811U CN202220553500.8U CN202220553500U CN217048811U CN 217048811 U CN217048811 U CN 217048811U CN 202220553500 U CN202220553500 U CN 202220553500U CN 217048811 U CN217048811 U CN 217048811U
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 45
- 230000001154 acute effect Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 241000755266 Kathetostoma giganteum Species 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a commercial car driver's cabin bottom plate longeron energy-absorbing device, including energy-absorbing subassembly and longeron, the energy-absorbing unit mount is on the longeron for consume the energy that the collision was strikeed. The energy absorption assembly comprises a first energy absorption plate, a first connecting plate is arranged on the first energy absorption plate, a first energy absorption hole is formed in the longitudinal beam, the first energy absorption hole is a special-shaped long round hole, and the aperture of one end, close to the first energy absorption plate, of the first energy absorption plate is larger than that of the other end of the first energy absorption plate. The first connecting plate is provided with a first round hole. The device of the utility model utilizes the principle of friction energy absorption to convert kinetic energy into friction internal energy in the collision process, consumes part of collision impact energy and has good energy absorption effect; the deformation of the energy absorption device is small in the collision process, so that the problem that the front wall and the floor of the vehicle body are easy to deform greatly by the conventional energy absorption device is solved, and the collision safety of the vehicle body in the cab can be improved; the whole device has simple structure and low manufacturing cost.
Description
Technical Field
The utility model relates to a commercial car technical field, especially a commercial car driver's cabin bottom plate longeron energy-absorbing device.
Background
At present, the cab of domestic commercial vehicles basically takes a flat-head cab as a main part, the structural characteristics of the cab determine that the front part of the vehicle is lack of a collision buffer area, meanwhile, the mass of the commercial vehicle is large, and once a traffic accident happens, the cab body can generate large deformation due to bearing of overlarge impact load, so that serious casualties and economic loss are caused. With the increasingly prominent traffic safety problem, people have higher and higher requirements on the safety performance of commercial vehicles. In various collision safety problems, the probability of the occurrence of the frontal collision is far higher than that of other accidents, and in the process of the frontal collision of a cab, the longitudinal beam of the floor bears the main functions of force transmission and energy absorption, so that on one hand, the energy generated by partial collision needs to be absorbed, and on the other hand, a certain rigidity needs to be kept, and the situation that the safety of drivers and passengers is endangered due to the fact that the front wall and the floor deform greatly is avoided. Therefore, the energy absorption characteristic and the structural rigidity of the cab floor longitudinal beam are directly related to the overall collision safety performance of the whole cab.
Most of the existing commercial vehicle cab floor longitudinal beams are not provided with energy absorption devices, so that energy cannot be well dissipated in the collision process, and the vehicle body is seriously deformed due to large impact force. Along with the development of automotive technology, at present few commercial car driver's cabin designs into flexible construction with floor longeron front end, and longeron flexible construction takes place to warp and absorbs some energy in collision process, but this kind of structure can arouse before enclose and take place great deformation with the floor, easily causes driver and crew's injury.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract and the title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the present application, and such simplifications or omissions cannot be used to limit the scope of the present invention.
The utility model discloses a problem that exists in view above-mentioned and/or current commercial car driver's cabin bottom plate longeron energy-absorbing device has been proposed.
Therefore, the utility model aims to solve the problem of how to provide a commercial car driver's cabin bottom plate longeron energy-absorbing device.
In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a commercial car driver's cabin bottom plate longeron energy-absorbing device, its includes, the energy-absorbing subassembly, including first energy-absorbing board, be provided with first connecting plate on the first energy-absorbing board, be provided with first energy-absorbing hole on the longeron, first energy-absorbing hole is special-shaped slotted hole, and it is close to the aperture of first energy-absorbing board one end is greater than the aperture of the other end.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an optimal selection scheme, wherein: the first connecting plate is provided with a first round hole, and the diameter of the first round hole is the same as that of the round hole at the larger end of the first energy absorbing hole.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an preferred scheme, wherein: the longitudinal beam is further provided with a first hole which is a long round hole, the first connecting plate is further provided with a second round hole, and the second round hole corresponds to the first hole.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an preferred scheme, wherein: the energy-absorbing assembly further comprises a second energy-absorbing plate, a second connecting plate is arranged on the second energy-absorbing plate, a second energy-absorbing hole is formed in the first energy-absorbing plate, one end, with a smaller diameter, of the second energy-absorbing hole is arranged on the outer side, a third round hole is formed in the second connecting plate, and the diameter of the third round hole is the same as that of the round hole at the end, with a larger diameter, of the second energy-absorbing hole.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an preferred scheme, wherein: the second energy-absorbing plate is an arc-shaped plate.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an preferred scheme, wherein: the second connecting plate is obliquely arranged, and an included angle between the second connecting plate and the first energy-absorbing plate is an acute angle.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an preferred scheme, wherein: the longitudinal beam is not in contact with the first energy absorbing plate.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an optimal selection scheme, wherein: the first energy absorbing holes are arranged in a plurality of numbers, and the first connecting plate is provided with a plurality of first round holes corresponding to the first energy absorbing holes.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an optimal selection scheme, wherein: the second energy-absorbing holes are multiple, and the second connecting plate is provided with multiple third round holes corresponding to the second energy-absorbing holes.
As a commercial car driver's cabin bottom plate longeron energy-absorbing device's an preferred scheme, wherein: the second energy absorption plate is made of an aluminum alloy material.
The utility model discloses beneficial effect does: kinetic energy in the collision process is converted into frictional internal energy by using a friction energy absorption principle, part of collision impact energy is consumed, and the energy absorption effect is good; the deformation of the energy absorption device in the collision process is small, so that the problem that the front wall and the floor of the vehicle body are easy to deform greatly by the conventional energy absorption device is solved, and the collision safety of the vehicle body in the cab can be improved; the whole device has simple structure and low manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a front view of a cab floor rail energy absorbing device of a commercial vehicle in embodiment 1.
Fig. 2 is a schematic view of a first connecting plate and a longitudinal beam of the cab floor longitudinal beam energy absorption device of the commercial vehicle in the embodiment 1.
Fig. 3 is a structural view of a commercial vehicle cab floor rail energy absorbing device in embodiment 2.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, for the first embodiment of the present invention, this embodiment provides a commercial vehicle cab floor longitudinal beam energy absorbing device, the commercial vehicle cab floor longitudinal beam energy absorbing device includes an energy absorbing assembly 100 and a longitudinal beam 200, the energy absorbing assembly 100 is installed on the longitudinal beam 200 for consuming energy of collision impact.
Specifically, the energy absorption assembly 100 comprises a first energy absorption plate 101, a first connecting plate 101a is arranged on the first energy absorption plate 101, a first energy absorption hole 201 is arranged on the longitudinal beam 200, the first energy absorption hole 201 is a special-shaped long round hole, and the aperture of one end, close to the first energy absorption plate 101, of the first energy absorption hole is larger than that of the other end of the first energy absorption plate. The first connecting plate 101a is provided with a first round hole 101a-1, the diameter of the first round hole 101a-1 is the same as that of the round hole at the larger end of the first energy-absorbing hole 201, the first connecting plate 101a is connected with the longitudinal beam 200 through a bolt, the diameter of the bolt is not more than that of the round hole at the larger end of the first energy-absorbing hole 201 and not less than that of the round hole at the smaller end of the first energy-absorbing hole 201, and preferably, the diameter of the bolt is the same as that of the first round hole 101 a-1.
Further, the longitudinal beam 200 is further provided with a first hole 202, the first hole 202 is an oblong hole, diameters of circular holes at two ends of the first hole 202 are the same, the first connecting plate 101a is further provided with a second circular hole 101a-2, and the second circular hole 101a-2 corresponds to the first hole 202.
The first energy absorbing aperture 201 is used to absorb energy and the first aperture 202 is used to help secure the energy absorbing assembly 100 against rotation.
It should be noted that the side member 200 is not in contact with the first energy-absorbing panel 101, that is, a certain distance is provided therebetween, so that the side member 200 does not interfere with the first energy-absorbing panel 101 when the first energy-absorbing panel moves in the collision process.
In use, the first connection plate 101a and the side member 200 are connected by two bolts respectively passing through the first hole 202 and the first energy absorbing plate 101. When the cab has a frontal collision, impact force is transmitted to the first connecting plate 101a through the first energy-absorbing plate 101, the first connecting plate 101a is pushed to move backwards, the bolt moves from the large-diameter end to the small-diameter end in the first energy-absorbing hole 201, the side wall of the first energy-absorbing hole 201 is tightly attached to the bolt to generate extrusion and friction, part of collision energy is converted into internal friction energy, and part of energy generated by collision is consumed.
Example 2
Referring to fig. 1 to 3, a second embodiment of the present invention is different from the first embodiment in that: a second energy absorbing panel 102 is also included. In the above embodiment, the commercial vehicle cab floor longitudinal beam energy absorption device comprises an energy absorption assembly 100 and a longitudinal beam 200, wherein the energy absorption assembly 100 is mounted on the longitudinal beam 200 and is used for dissipating energy of collision impact.
The energy absorption assembly 100 comprises a first energy absorption plate 101, a first connecting plate 101a is arranged on the first energy absorption plate 101, a first energy absorption hole 201 is arranged on the longitudinal beam 200, the first energy absorption hole 201 is a special-shaped long round hole, and the aperture of one end, close to the first energy absorption plate 101, of the first energy absorption hole is larger than that of the other end of the first energy absorption plate. The first connecting plate 101a is provided with a first round hole 101a-1, and the diameter of the first round hole 101a-1 is the same as that of the round hole at the larger end of the first energy absorption hole 201.
The longitudinal beam 200 is provided with a first hole 202, the first hole 202 is a long round hole, the diameters of round holes at two ends of the first hole 202 are the same, the first connecting plate 101a is provided with a second round hole 101a-2, and the second round hole 101a-2 corresponds to the first hole 202.
Further, the energy-absorbing assembly 100 further includes a second energy-absorbing plate 102 made of an aluminum alloy material, a second connecting plate 102a is disposed on the second energy-absorbing plate 102, a second energy-absorbing hole 101b is disposed on the first energy-absorbing plate 101, an end of the second energy-absorbing hole 101b having a smaller diameter is disposed outside, a third circular hole 102a-1 is disposed on the second connecting plate 102a, and a diameter of the third circular hole 102a-1 is the same as a diameter of a circular hole at an end of the second energy-absorbing hole 101b having a larger diameter. Preferably, the second energy absorbing plate 102 is an arc-shaped plate. The second connecting plate 102a comprises a horizontal section and an inclined section, the inclined section is fixedly connected with the second energy-absorbing plate 102, the horizontal section is connected with the first energy-absorbing plate 101 through bolts, and the second connecting plate 102a is made of a material with low rigidity.
Further, the second connecting plate 102a is disposed obliquely, an included angle between the second connecting plate and the first energy absorbing plate 101 is an acute angle, a plurality of first energy absorbing holes 201 may be disposed, a plurality of first circular holes 101a-1 corresponding to the first energy absorbing holes 201 are disposed on the first connecting plate 101a, a plurality of second energy absorbing holes 101b are disposed, a plurality of third circular holes 102a-1 corresponding to the second energy absorbing holes 101b are disposed on the second connecting plate 102a, and in this embodiment, only one second energy absorbing hole 101b and one first energy absorbing hole 201 are disposed on the same side.
When the cab is in a frontal collision, the second energy-absorbing plate 102 is impacted to transmit impact force to the second connecting plate 102a, because the second connecting plate 102a has smaller rigidity and is arranged at an acute angle with the second energy-absorbing plate 102, when the impact force is exerted, the inclined section deforms towards the rear direction of the cab, so that bolts are pushed to move towards two sides of the cab, the bolts move from a large-diameter end to a small-diameter end in the second energy-absorbing holes 101b, the side wall of the second energy-absorbing holes 101b is tightly attached to the bolts to generate extrusion and friction, part of collision energy is converted into friction internal energy, so that part of energy generated by the collision is consumed, the surplus energy is continuously transmitted to the first connecting plate 101a through the first energy-absorbing plate 101 to push the other bolt to move backwards, the other bolt moves from the large-diameter end to the small-diameter end in the first energy-absorbing hole 201, and the side wall of the first energy-absorbing hole 201 is tightly attached to the other bolt to generate extrusion and friction, part of collision energy is converted into internal friction energy, and energy generated by part of collision is further consumed.
When the cab is heavy, the impact energy for generating the frontal collision is larger, and the number of the bolts and the induction grooves can be increased according to the actual situation, so that more collision impact energy is converted into internal energy, the energy absorption effect of the energy absorption device is improved, and the collision safety of the cab is improved.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a commercial car driver's cabin bottom plate longeron energy-absorbing device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the energy-absorbing assembly (100) comprises a first energy-absorbing plate (101), wherein a first connecting plate (101a) is arranged on the first energy-absorbing plate (101), a first energy-absorbing hole (201) is formed in a longitudinal beam (200), the first energy-absorbing hole (201) is a special-shaped long round hole, and the diameter of the first energy-absorbing plate (101) close to one end is larger than that of the other end.
2. The commercial vehicle cab floor rail energy absorbing device of claim 1, wherein: the first connecting plate (101a) is provided with a first round hole (101a-1), and the diameter of the first round hole (101a-1) is the same as that of a round hole at the larger end of the first energy absorption hole (201).
3. The commercial vehicle cab floor rail energy absorbing device of claim 1 or 2, wherein: the longitudinal beam (200) is further provided with a first hole (202), the first hole (202) is a long round hole, the first connecting plate (101a) is further provided with a second round hole (101a-2), and the second round hole (101a-2) corresponds to the first hole (202).
4. The commercial vehicle cab floor rail energy absorbing device of claim 3, wherein: the energy-absorbing assembly (100) further comprises a second energy-absorbing plate (102), a second connecting plate (102a) is arranged on the second energy-absorbing plate (102), a second energy-absorbing hole (101b) is formed in the first energy-absorbing plate (101), the end, with the smaller diameter, of the second energy-absorbing hole (101b) is arranged on the outer side, a third round hole (102a-1) is formed in the second connecting plate (102a), and the diameter of the third round hole (102a-1) is the same as that of the round hole at the larger end of the second energy-absorbing hole (101 b).
5. The commercial vehicle cab floor rail energy absorbing device of claim 4, wherein: the second energy-absorbing plate (102) is an arc-shaped plate.
6. The commercial vehicle cab floor rail energy absorbing device of claim 5, wherein: the second connecting plate (102a) is obliquely arranged, and the included angle between the second connecting plate and the first energy absorbing plate (101) is an acute angle.
7. The commercial vehicle cab floor rail energy absorbing device of claim 6, wherein: the longitudinal beam (200) is not in contact with the first energy-absorbing plate (101).
8. The commercial vehicle cab floor rail energy absorbing device of claim 6 or 7, wherein: the first energy absorbing holes (201) are provided in plurality, and the first connecting plate (101a) is provided with a plurality of first round holes (101a-1) corresponding to the first energy absorbing holes (201).
9. The commercial vehicle cab floor rail energy absorbing device of claim 4, wherein: the second energy-absorbing holes (101b) are provided with a plurality of holes, and the second connecting plate (102a) is provided with a plurality of third round holes (102a-1) corresponding to the second energy-absorbing holes (101 b).
10. The commercial vehicle cab floor rail energy absorbing device of claim 4 or 9, wherein: the second energy absorption plate (102) is made of an aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220553500.8U CN217048811U (en) | 2022-03-15 | 2022-03-15 | Commercial car driver's cabin bottom plate longeron energy-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220553500.8U CN217048811U (en) | 2022-03-15 | 2022-03-15 | Commercial car driver's cabin bottom plate longeron energy-absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217048811U true CN217048811U (en) | 2022-07-26 |
Family
ID=82488786
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220553500.8U Expired - Fee Related CN217048811U (en) | 2022-03-15 | 2022-03-15 | Commercial car driver's cabin bottom plate longeron energy-absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217048811U (en) |
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2022
- 2022-03-15 CN CN202220553500.8U patent/CN217048811U/en not_active Expired - Fee Related
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Granted publication date: 20220726 |