CN209955926U - Automobile anti-collision beam - Google Patents
Automobile anti-collision beam Download PDFInfo
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- CN209955926U CN209955926U CN201920242114.5U CN201920242114U CN209955926U CN 209955926 U CN209955926 U CN 209955926U CN 201920242114 U CN201920242114 U CN 201920242114U CN 209955926 U CN209955926 U CN 209955926U
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Abstract
The utility model discloses an automobile anti-collision beam belongs to car safety technical field. The damping device comprises a beam body and a pair of buffering devices which are arranged in parallel relatively, wherein the beam body is movably connected with the pair of buffering devices, the beam body comprises a main beam and two main beam connecting pieces, the two main beam connecting pieces are respectively and fixedly connected with the two ends of the main beam, and the buffering devices and the main beam are movably connected in the horizontal direction through the main beam connecting pieces; the utility model discloses to current car anticollision roof beam buffering effect poor, the not high grade technical problem of security performance improves, through addding multistage buffer structure and increase safety device, the guarantee car that can furthest is because of the damage that the bumping brought. The utility model has the characteristics of simple structure, buffering are effectual, the security performance is high.
Description
Technical Field
The utility model relates to an automobile safety technical field especially relates to an automobile anti-collision beam.
Background
The front and rear anti-collision beams are devices for bearing the impact force of the vehicle for the first time, and an important idea in the aspect of passive safety of the vehicle body is that the vehicle body bears the force of the whole body. It is said that a certain position of the automobile body is impacted, and if only the part is allowed to bear the force, the protection effect is poor. If the whole framework structure bears the force when a certain point is stressed, the strength of the force stressed by one point can be reduced to the maximum extent, and particularly the front and rear anti-collision steel beams play an obvious role here. The anticollision roof beam adopts simple buffering anticollision institution behind present car, and anticollision roof beam adopts plastics buffering shell even before some cars, can only guarantee the safety of car in the low-speed travel like this to striking lifting surface concentrates on the front of vehicle, and the striking dynamics concentrates on causing the vehicle to damage seriously, causes the injury to personnel simultaneously. For solving the technical problem above, the utility model discloses an automobile anti-collision beam is through with girder and two girder connecting pieces to two girder connecting pieces are fixed connection respectively at the both ends of girder, then at the lateral part installation buffer of girder connecting piece, thereby reach the effect of roof beam body buffering. The utility model discloses have multiple buffer gear, harm that maximum reduction collision brought when the roof beam body strikes the object makes roof beam body inward movement under the effect of impact force, and this car anticollision roof beam has higher security performance and performance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a car anticollision roof beam to solve the car anticollision roof beam buffering effect among the prior art poor, the not high grade technical problem of security performance.
The utility model discloses a realize through following technical scheme: the utility model discloses an automobile anti-collision beam, including the roof beam body and a pair of relative parallel arrangement's buffer, the roof beam body and a pair of buffer swing joint, the roof beam body includes girder and two girder connecting pieces, and two girder connecting pieces are fixed connection respectively at the both ends of girder to buffer and girder pass through girder connecting piece swing joint in the horizontal direction, just so can make the car can play the buffering effect after contacting the object, increase the security performance of car.
Further, for better connection effect, the girder connection part comprises a fixed rod and a buffer rod, the fixed rod is perpendicular to the buffer rod, the head end of the fixed rod is welded and fixed to the end of the girder or integrally formed, the buffer rod is located at the tail end of the fixed rod, and the buffer rod is movably connected with the buffer device.
Furthermore, in order to increase the safety performance, realize multi-level buffering and reduce the collision impact force, the buffering device comprises a first buffering device and at least one pair of second buffering devices, the buffering rod is movably connected with the first buffering device, a cross beam is horizontally arranged between the first buffering devices, the cross beam and the main beam are oppositely arranged, the second buffering devices are vertically and fixedly installed on the cross beam, and the second buffering devices are correspondingly installed with the fixing rod.
Furthermore, the first buffer device comprises a horizontal limiting shell with an opening on the inner side surface and a buffer mechanism arranged in the inner cavity of the shell, the buffer mechanism comprises a gear, a wire wheel and an extension spring, the gear and the wire wheel are respectively sleeved and fixed with a rotating shaft arranged in the inner cavity of the shell, and the axes of the gear and the wire wheel are superposed; the bottom end of the extension spring is fixedly connected with the inner cavity of the shell, and the other end of the extension spring is fixedly wound with the wire wheel through a connecting wire; the inner side surface opening of the horizontal limiting shell is correspondingly installed with the buffer rod, a tooth block is further arranged on the outer side surface of the buffer rod, and the tooth block is connected with the gear in a meshed mode.
As another design scheme, the first buffer device comprises a horizontal limiting shell with an opening on the inner side surface, a buffer cross rod and a compression spring or an elastic compression piece, wherein the buffer cross rod is positioned in an inner cavity of the shell, one end of the buffer cross rod penetrates through the opening on the side surface of the horizontal limiting shell to be vertically fixed with the buffer rod, the bottom end of the compression spring is fixedly connected with the inner cavity of the shell, and the other end of the compression spring is vertically connected with the buffer cross rod.
Furthermore, the second buffer device comprises a diamond-shaped telescopic strip and a fixed block fixed at the top of the diamond-shaped telescopic strip, compression springs are connected between adjacent telescopic joints of the diamond-shaped telescopic strip, and the fixed block and the fixed rod are arranged oppositely; when not receiving external force extrusion, the length of second buffer is not less than the length of buffer bar. The second damping means may also be formed by other forms of resilient compression members.
Furthermore, the main beam is of an arc-shaped structure, the inner side of the main beam is fixedly provided with energy absorption frames, and the energy absorption frames are symmetrically arranged in the arc-shaped structure of the main beam.
Furthermore, in order to better improve the safety performance, an air bag is fixedly arranged at the tail part of the energy absorption frame, an air bag impact block is vertically and fixedly arranged on the cross beam, the air bag impact block and the air bag are oppositely arranged, and the air bag is connected with a control device of the automobile through an electric signal; after the air bag impact block is in contact collision with the safety air bag, the acceleration sensor in the automobile body receives a signal and transmits the signal to the control device, and then the control device sends an explosion signal to the safety air bag, so that the safety air bag is opened instantly.
Further, in order to prevent the girder connecting piece from destroying the whole anti-collision beam in the buffering process, the inner side of the horizontal limiting shell is also fixedly provided with an anti-collision pad which is positioned below the inner side surface opening of the horizontal limiting shell.
Furthermore, in order to better improve the secondary buffer effect, two sides of each diamond-shaped expansion strip are respectively provided with 5 compression springs or more than 5 compression springs.
The utility model discloses an automobile anti-collision beam, it is compared in current automobile anti-collision beam and has following effect:
the utility model discloses a be provided with dual buffer, under the cooperation of two devices, harm that the biggest reduction collision brought, when the roof beam body strikes the object, make roof beam body inward movement under the effect of impact force, the gear and the stretch-proofing spring of setting can play the effect of buffering, reach first layer buffering effect, when the impact force is bigger a little more, the dead lever can extrude second buffer, second buffer's flexible strip can extrude the spring, make the impact force alleviated, after the buffering, under the effect of spring elasticity, the roof beam body also can resume the original position, it is efficient to use the safety. In addition, the energy-absorbing frame and the safety airbag can absorb energy generated by impact when the automobile is guaranteed to be incapable of being buffered through the buffer device when being impacted greatly, the force caused by impact is reduced, the danger caused by impact on personnel in the automobile can be effectively reduced, and meanwhile, the safety airbag arranged can automatically open the safety airbag when the impact force is too large to contact with the safety airbag to open the assembly, so that the safety of the personnel in the automobile is guaranteed to the maximum extent.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic structural view of a first buffer device in embodiments 1 and 2;
FIG. 3 is a schematic structural view of a second buffer device;
fig. 4 is a schematic structural diagram of a first buffer device in embodiment 3.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
Embodiment 1 discloses an automobile anti-collision beam, as shown in fig. 1, including roof beam body 1 and a pair of buffer 2 of relative parallel arrangement, roof beam body 1 and a pair of buffer 2 swing joint, roof beam body 1 includes girder 11 and two girder connecting pieces 12, two girder connecting pieces 12 are fixed connection respectively at the both ends of girder 11, and buffer 2 and girder 11 pass through girder connecting piece 12 swing joint in the horizontal direction, just so can make the car can play the buffering effect after contacting the object, increase the security performance of car.
The main beam connecting part 12 includes a fixing rod 121 and a buffer rod 122, the fixing rod 121 and the buffer rod 122 are vertically disposed, the head end of the fixing rod 121 and the end of the main beam 11 are welded and fixed, the buffer rod 122 is located at the tail end of the fixing rod 121, and the buffer rod 122 is movably connected with the buffer device 2. In order to increase the safety performance, realize multi-stage buffering and reduce the impact force of collision, the buffering device 2 comprises a first buffering device 21 and a pair of second buffering devices 22, as shown in fig. 2, the first buffering device 21 comprises a horizontal limiting outer shell 211 with an opening on the inner side surface and a buffering mechanism arranged in the inner cavity of the shell, the buffering mechanism comprises a gear 212, a wire wheel 213 and an extension spring 214, the gear 212 and the wire wheel 213 are respectively sleeved and fixed with a rotating shaft 215 arranged in the inner cavity of the shell, and the axes of the gear 212 and the wire wheel 213 are overlapped; the bottom end of the extension spring 214 is fixedly connected with the inner cavity of the shell 211, and the other end of the extension spring 214 is fixedly wound with the wire wheel through a connecting wire 216; the inner side surface opening of the horizontal limiting shell 211 is correspondingly installed with the buffer rod 122, a tooth block 1221 is further arranged on the outer side surface of the buffer rod 122, and the tooth block 1221 is meshed with the gear 212. The buffer rods 122 are connected with the first buffer devices 21 in a rolling connection mode, the cross beam 3 is horizontally arranged between the first buffer devices 21, the positions of the cross beam 3 and the main beam 11 are opposite, the second buffer device 22 is vertically and fixedly installed on the cross beam 3, and the positions of the second buffer device 22 and the fixed rod 121 are correspondingly installed.
As shown in fig. 3, the second buffer device 22 includes a diamond-shaped expansion strip 221 and a fixed block 222 fixed on the top of the diamond-shaped expansion strip 221, compression springs 223 are connected between adjacent expansion joints of the diamond-shaped expansion strip 221, and the fixed block 222 is disposed opposite to the fixed rod 121; when not pressed by external force, the length of the second buffer device 22 is greater than the length of the buffer rod 122. The main beam 11 is of an arc structure, the inner side of the main beam 11 is also fixedly provided with energy absorption frames 4, and the energy absorption frames 4 are symmetrically arranged in the arc structure of the main beam 11.
The tail part of the energy absorption frame 4 is also fixedly provided with an air bag 5, the beam 3 is also vertically and fixedly provided with an air bag impact block 6, the air bag impact block 6 is arranged opposite to the air bag 5, and the air bag 5 is connected with a control device of an automobile through an electric signal; after the airbag impact block 6 and the safety airbag 5 are in contact collision, the acceleration sensor in the automobile body receives signals and transmits the signals to the control device, and then the control device sends out an explosion signal to the safety airbag, so that the safety airbag is opened instantly, and the automobile body is protected. The inside of the horizontal limit shell 211 is also fixedly provided with a crash pad 217, and the crash pad 217 is positioned below the opening on the inner side of the horizontal limit shell 211. In order to better improve the secondary buffer effect, two sides of each diamond-shaped expansion strip 221 are respectively provided with 5 compression springs or more than 5 compression springs.
Example 2
Embodiment 2 discloses an automobile anti-collision beam, as shown in fig. 1, including roof beam body 1 and a pair of buffer 2 of relative parallel arrangement, roof beam body 1 and a pair of buffer 2 swing joint, roof beam body 1 includes girder 11 and two girder connecting pieces 12, two girder connecting pieces 12 are fixed connection respectively at the both ends of girder 11, and buffer 2 and girder 11 pass through girder connecting piece 12 swing joint in the horizontal direction, just so can make the car can play the buffering effect after contacting the object, increase the security performance of car.
The main beam connecting member 12 includes a fixing rod 121 and a buffer rod 122, the fixing rod 121 and the buffer rod 122 are vertically disposed, the head end of the fixing rod 121 and the end of the main beam 11 are integrally formed, the buffer rod 122 is located at the tail end of the fixing rod 121, and the buffer rod 122 is movably connected to the buffer device 2. In order to increase the safety performance, realize multi-stage buffering and reduce the impact force of collision, the buffering device 2 comprises a first buffering device 21 and a pair of second buffering devices 22, as shown in fig. 2, the first buffering device 21 comprises a horizontal limiting outer shell 211 with an opening on the inner side surface and a buffering mechanism arranged in the inner cavity of the shell, the buffering mechanism comprises a gear 212, a wire wheel 213 and an extension spring 214, the gear 212 and the wire wheel 213 are respectively sleeved and fixed with a rotating shaft 215 arranged in the inner cavity of the shell, and the axes of the gear 212 and the wire wheel 213 are overlapped; the bottom end of the extension spring 214 is fixedly connected with the inner cavity of the shell 211, and the other end of the extension spring 214 is fixedly wound with the wire wheel through a connecting wire 216; the inner side surface opening of the horizontal limiting shell 211 is correspondingly installed with the buffer rod 122, a tooth block 1221 is further arranged on the outer side surface of the buffer rod 122, and the tooth block 1221 is meshed with the gear 212. The buffer rods 122 are connected with the first buffer devices 21 in a rolling connection mode, the cross beam 3 is horizontally arranged between the first buffer devices 21, the positions of the cross beam 3 and the main beam 11 are opposite, the second buffer device 22 is vertically and fixedly installed on the cross beam 3, and the positions of the second buffer device 22 and the fixed rod 121 are correspondingly installed.
As shown in fig. 3, the second buffer device 22 includes a diamond-shaped expansion strip 221 and a fixed block 222 fixed on the top of the diamond-shaped expansion strip 221, compression springs 223 are connected between adjacent expansion joints of the diamond-shaped expansion strip 221, and the fixed block 222 is disposed opposite to the fixed rod 121; when not pressed by external force, the length of the second buffer device 22 is equal to the length of the buffer rod 122. The second damping means 22 may also be formed by other types of elastically compressible elements. The main beam 11 is of an arc structure, the inner side of the main beam 11 is also fixedly provided with an energy absorption frame 4, the energy absorption frame 4 can be made of steel with a damping structure or corrugated section bars, and the energy absorption frames 4 are symmetrically arranged in the arc structure of the main beam 11.
The tail part of the energy absorption frame 4 is also fixedly provided with an air bag 5, the beam 3 is also vertically and fixedly provided with an air bag impact block 6, the air bag impact block 6 is arranged opposite to the air bag 5, and the air bag 5 is connected with a control device of an automobile through an electric signal; after the airbag impact block 6 and the safety airbag 5 are in contact collision, the acceleration sensor in the automobile body receives signals and transmits the signals to the control device, and then the control device sends out an explosion signal to the safety airbag, so that the safety airbag is opened instantly, and the automobile body is protected. The inside of the horizontal limit shell 211 is also fixedly provided with a crash pad 217, and the crash pad 217 is positioned below the opening on the inner side of the horizontal limit shell 211. In order to better improve the secondary buffer effect, two sides of each diamond-shaped expansion strip 221 are respectively provided with 5 compression springs or more than 5 compression springs.
Example 3
Embodiment 3 discloses an automobile anti-collision beam, as shown in fig. 1, including roof beam body 1 and a pair of buffer 2 of relative parallel arrangement, roof beam body 1 and a pair of buffer 2 swing joint, roof beam body 1 includes girder 11 and two girder connecting pieces 12, two girder connecting pieces 12 are fixed connection respectively at the both ends of girder 11, and buffer 2 and girder 11 pass through girder connecting piece 12 swing joint in the horizontal direction, just so can make the car can play the buffering effect after contacting the object, increase the security performance of car.
The main beam connecting member 12 includes a fixing rod 121 and a buffer rod 122, the fixing rod 121 and the buffer rod 122 are vertically disposed, the head end of the fixing rod 121 and the end of the main beam 11 are integrally formed, the buffer rod 122 is located at the tail end of the fixing rod 121, and the buffer rod 122 is movably connected to the buffer device 2. In order to increase safety performance, realize multi-level buffering and reduce collision impact force, the buffer device 2 includes a first buffer device 21 and a pair of second buffer devices 22, as shown in fig. 4, the first buffer device 21 in this embodiment includes a horizontal limiting shell 211 with an open inner side, a buffer cross rod 218 located in an inner cavity of the shell 211, and a compression spring 219 or other elastic compression member, one end of the buffer cross rod 218 passes through the side opening of the horizontal limiting shell 211 and is vertically fixed with the buffer rod 122, the bottom end of the compression spring 219 is fixedly connected with the inner cavity of the shell, and the other end of the compression spring 219 is vertically connected with the buffer cross rod 218.
The second buffer device 22 comprises a diamond-shaped expansion strip 221 and a fixed block 222 fixed at the top of the diamond-shaped expansion strip 221, compression springs 223 are connected between adjacent expansion joints of the diamond-shaped expansion strip 221, and the fixed block 222 is arranged opposite to the fixed rod 121; when not pressed by external force, the length of the second buffer device 22 is equal to the length of the buffer rod 122. The second damping means 22 may also be formed by other types of elastically compressible elements. The main beam 11 is of an arc structure, the inner side of the main beam 11 is also fixedly provided with an energy absorption frame 4, the energy absorption frame 4 can be made of steel with a damping structure or corrugated section bars, and the energy absorption frames 4 are symmetrically arranged in the arc structure of the main beam 11. The tail part of the energy absorption frame 4 is also fixedly provided with an air bag 5, the beam 3 is also vertically and fixedly provided with an air bag impact block 6, the air bag impact block 6 is arranged opposite to the air bag 5, and the air bag 5 is connected with a control device of an automobile through an electric signal; after the airbag impact block 6 and the safety airbag 5 are in contact collision, the acceleration sensor in the automobile body receives signals and transmits the signals to the control device, and then the control device sends out an explosion signal to the safety airbag, so that the safety airbag is opened instantly, and the automobile body is protected. The inside of the horizontal limit shell 211 is also fixedly provided with a crash pad 217, and the crash pad 217 is positioned below the opening on the inner side of the horizontal limit shell 211. In order to better improve the secondary buffer effect, two sides of each diamond-shaped expansion strip 221 are respectively provided with 5 compression springs or more than 5 compression springs.
Claims (10)
1. The utility model provides an automobile anti-collision beam, includes the roof beam body and a pair of relative parallel arrangement's buffer, the roof beam body with a pair of buffer swing joint, its characterized in that: the beam body comprises a main beam and two main beam connecting pieces, the two main beam connecting pieces are respectively and fixedly connected to two ends of the main beam, and the buffer device and the main beam are movably connected in the horizontal direction through the main beam connecting pieces.
2. An automobile impact beam as defined in claim 1, wherein: the main beam connecting piece comprises a fixed rod and a buffer rod, the fixed rod is perpendicular to the buffer rod, the head end of the fixed rod is welded and fixed to the end portion of the main beam or integrally formed, the buffer rod is located at the tail end of the fixed rod, and the buffer rod is movably connected with the buffer device.
3. An automobile impact beam as defined in claim 2, wherein: the buffer device comprises a first buffer device and at least one pair of second buffer devices, the buffer rod is movably connected with the first buffer device, a cross beam is horizontally arranged between the first buffer devices, the cross beam is opposite to the main beam in position, the second buffer devices are vertically and fixedly installed on the cross beam, and the second buffer devices are correspondingly installed with the fixed rod in position.
4. An automobile impact beam as defined in claim 3, wherein: the first buffer device comprises a horizontal limiting shell with an opening on the inner side surface and a buffer mechanism arranged in the inner cavity of the shell, the buffer mechanism comprises a gear, a wire wheel and an extension spring, the gear and the wire wheel are respectively sleeved and fixed with a rotating shaft arranged in the inner cavity of the shell, and the axes of the gear and the wire wheel are overlapped; the bottom end of the extension spring is fixedly connected with the inner cavity of the shell, and the other end of the extension spring is fixedly connected with the wire wheel in a winding manner through a connecting wire; the inner side surface opening of the horizontal limiting shell is correspondingly installed with the buffer rod, a tooth block is further arranged on the outer side surface of the buffer rod, and the tooth block is connected with the gear in a meshed mode.
5. An automobile impact beam as defined in claim 3, wherein: first buffer includes the spacing shell of medial surface open-ended level, is located buffering horizontal pole and the compression spring of casing inner chamber, the one end of buffering horizontal pole is passed the side opening of the spacing shell of level with the buffer beam vertical fixation, compression spring's bottom and the inner chamber fixed connection of casing, compression spring's the other end with buffering horizontal pole vertical connection.
6. An automobile impact beam as defined in claim 3, wherein: the second buffer device comprises a diamond-shaped telescopic strip and a fixed block fixed at the top of the diamond-shaped telescopic strip, compression springs are connected between adjacent telescopic joints of the diamond-shaped telescopic strip, and the fixed block and the fixed rod are arranged oppositely; when the buffer rod is not extruded by external force, the length of the second buffer device is not less than that of the buffer rod.
7. An automobile impact beam as defined in claim 3, wherein: the main beam is of an arc-shaped structure, the inner side of the main beam is fixedly provided with energy absorption frames, and the energy absorption frames are symmetrically arranged in the arc-shaped structure of the main beam.
8. An automobile impact beam as defined in claim 7, wherein: the rear part of the energy absorption frame is fixedly provided with an air bag, the beam is vertically and fixedly provided with an air bag impact block, the air bag impact block and the air bag are oppositely arranged, and the air bag is connected with a control device of an automobile through an electric signal.
9. An automobile impact beam according to claim 4 or 5, wherein: the inboard of the spacing shell of level is still fixed and is provided with the crashproof pad, the crashproof pad is located the open-ended below of medial surface.
10. An automobile impact beam as defined in claim 6, wherein: and 5 compression springs are respectively arranged on two sides of each diamond-shaped expansion strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920242114.5U CN209955926U (en) | 2019-02-26 | 2019-02-26 | Automobile anti-collision beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920242114.5U CN209955926U (en) | 2019-02-26 | 2019-02-26 | Automobile anti-collision beam |
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| Publication Number | Publication Date |
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| CN209955926U true CN209955926U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920242114.5U Active CN209955926U (en) | 2019-02-26 | 2019-02-26 | Automobile anti-collision beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969112A (en) * | 2019-02-26 | 2019-07-05 | 浙江飞碟汽车制造有限公司 | A kind of automobile buffer beam |
| CN112977312A (en) * | 2021-04-13 | 2021-06-18 | 奇瑞商用车（安徽）有限公司 | High strength car anticollision roof beam and car thereof |
-
2019
- 2019-02-26 CN CN201920242114.5U patent/CN209955926U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969112A (en) * | 2019-02-26 | 2019-07-05 | 浙江飞碟汽车制造有限公司 | A kind of automobile buffer beam |
| CN109969112B (en) * | 2019-02-26 | 2024-06-21 | 浙江飞碟汽车制造有限公司 | Anti-collision beam for automobile |
| CN112977312A (en) * | 2021-04-13 | 2021-06-18 | 奇瑞商用车（安徽）有限公司 | High strength car anticollision roof beam and car thereof |
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