CN210258329U - Truck and rear protection device thereof - Google Patents
Truck and rear protection device thereof Download PDFInfo
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- CN210258329U CN210258329U CN201921070428.8U CN201921070428U CN210258329U CN 210258329 U CN210258329 U CN 210258329U CN 201921070428 U CN201921070428 U CN 201921070428U CN 210258329 U CN210258329 U CN 210258329U
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Abstract
The utility model discloses a freight train and its back protector, back protector includes: a vertical support rod; the longitudinal adjusting rod is connected to the lower end of the vertical supporting rod; back rail guard, back rail guard connect in the rear end of indulging the pole, and back rail guard includes: the first diaphragm, the second diaphragm, the third diaphragm, the first riser, second riser and third riser, the one end of the relative first diaphragm of first riser and the one end of second diaphragm are buckled, the other end of the relative first diaphragm of second riser is buckled and is relative with the first riser, the other end of the relative second diaphragm of third riser is buckled, the third riser is buckled and is provided with overlap joint portion, the tip welding of second riser is in overlap joint portion department, the one end of third diaphragm is connected in overlap joint portion department other end and is connected on the first riser. Therefore, the rear guard rail is reasonably arranged, the structural strength of the rear guard rail can be effectively improved, and the protection effect of the rear guard rail device can be further improved.
Description
Technical Field
The utility model belongs to the technical field of the vehicle technique and specifically relates to a freight train and back protector thereof is related to.
Background
According to the requirements of relevant national regulations, in order to provide effective safety protection when a vehicle is in contact with the vehicle, vehicles of N2 and N3 are required to be provided with rear protection devices.
The rear protection device used in the existing market mainly has the problems of insufficient overall strength and extremely easy deformation, and can not meet the requirements of regulations. The strength of the joint of the rear protective device and a connecting plate at the tail end of the chassis frame is insufficient, and the structural strength of a vertical supporting rod, an adjusting rod and a rear protective guard in the rear protective device is insufficient; the number of connecting bolts is small, the strength of the selected bolts is insufficient, and the welded part is easy to crack and the deformation of the rear protective guard is large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a back protector of freight train, this back protector structural strength is high, and the protecting effect is good.
The utility model discloses a freight train is further provided.
According to the utility model discloses a back protector of freight train, include: a vertical support rod; the vertical adjusting rod is connected to the lower end of the vertical supporting rod; the back rail guard, back rail guard connect in the rear end of indulging the pole, back rail guard includes: the device comprises a first transverse plate, a second transverse plate, a third transverse plate, a first vertical plate, a second vertical plate and a third vertical plate, wherein the first vertical plate is bent and connected between one end of the first transverse plate and one end of the second transverse plate relative to one end of the first transverse plate and one end of the second transverse plate, the second vertical plate is bent relative to the other end of the pair of first transverse plates and is opposite to the first vertical plate, the third vertical plate is bent relative to the other end of the second transverse plate and is opposite to the first vertical plate, the third vertical plate and the second vertical plate extend towards each other, the third vertical plate is bent and provided with a lap joint part, the tip welding of second riser is in overlap joint department, the one end of third diaphragm is connected overlap joint department and the other end is connected on the first riser, the third diaphragm is located first diaphragm with between the second diaphragm.
Therefore, the rear guard rail is reasonably arranged, the structural strength of the rear guard rail can be effectively improved, the structural strength of the rear guard rail device can be further improved, and the protection effect of the rear guard rail device can be improved.
In some examples of the present invention, the rear guard rail is a steel member having a material property of not less than 700L.
In some examples of the present invention, the rear guard rail is a rolled integrally formed guard rail.
In some examples of the present invention, the wall thickness d of the rear guard rail satisfies the relation: d is more than or equal to 2mm and less than or equal to 3 mm.
In some examples of the invention, the other end of the third transverse plate is provided with a bend, the bend is lapped and welded on the first vertical plate.
In some examples of the invention, the rear guard further comprises: the first reinforcing plate is fixed to the rear protective guard and is further connected to the rear end of the longitudinal adjusting rod.
In some examples of the present invention, the first reinforcing plate is U-shaped and is fastened to the rear guard rail.
In some examples of the invention, the first stiffener is provided with a plurality of weld holes.
In some examples of the invention, the rear guard further comprises: the second reinforcing plate is connected between the rear end of the longitudinal adjusting rod and the first reinforcing plate.
In some examples of the invention, the second reinforcing plate is distributed on both sides of the rear end of the longitudinal adjustment rod, and is welded and fixed to the rear end of the longitudinal adjustment rod and between the first reinforcing plates.
In some examples of the invention, the longitudinal adjustment rod comprises: the first fixing plate and the second fixing plate are opened towards each other, the first fixing plate and the second fixing plate are both U-shaped, two side walls of the first fixing plate are fixed to the outer sides of two side walls of the second fixing plate in an overlapping mode, and the first fixing plate and the second fixing plate are provided with at least three fastener holes.
In some examples of the present invention, the two side walls of the first fixing plate are overlapped and welded to the outside of the two side walls of the second fixing plate.
In some examples of the invention, the vertical support bar comprises: the fixing device comprises a third fixing plate and a fourth fixing plate which are open towards each other, wherein the third fixing plate and the fourth fixing plate are both U-shaped, and two side walls of the third fixing plate are fixed on the outer sides of two side walls of the fourth fixing plate in an overlapping mode.
In some examples of the present invention, the two side walls of the third fixing plate are overlapped and welded to the outside of the two side walls of the fourth fixing plate.
In some examples of the present invention, a third reinforcing plate is welded and fixed to an inner side of the vertical support rod.
According to the utility model discloses a freight train, include the back protector of freight train.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a first viewing angle of a rear guard according to an embodiment of the present invention mounted on a frame tail end connection plate;
FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;
fig. 3 is a schematic view of a second viewing angle of the rear guard according to an embodiment of the present invention mounted on the frame tail end connection plate;
fig. 4 is a sectional view of the rear guard rail;
FIG. 5 is a schematic view of a first stiffener plate;
FIG. 6 is a side view of the first reinforcement panel;
FIG. 7 is a front view of the longitudinal adjustment bar;
FIG. 8 is a side view of the longitudinal adjustment rod;
FIG. 9 is a front view of the vertical support pole;
figure 10 is a side view of a vertical support pole.
Reference numerals:
a rear guard 100;
a vertical support bar 10; a third fixing plate 11; a fourth fixing plate 12;
a longitudinal adjustment rod 20; a first fixing plate 21; a second fixing plate 22; fastener holes 23;
a rear guard rail 30; a first horizontal plate 31; a second transverse plate 32; a third cross plate 33; a first riser 34; a second riser 35; a third riser 36; a lap joint portion 37; a bent portion 38; a plug 39;
a first reinforcing plate 40; weld holes 41; a second reinforcing plate 50; a third reinforcing plate 60;
the frame tail end is connected with the board 200.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
A rear fender 100 of a truck according to an embodiment of the present invention is described below with reference to fig. 1 to 10, the rear fender 100 being installed at an end portion of the truck, and specifically, the truck may include: the rear protection device 100 is mounted on the frame tail end connecting plate 200, and the rear protection device 100 can play a role in protecting the rear part of the truck.
As shown in fig. 1 to 3, a rear protection device 100 of a truck according to an embodiment of the present invention may include: the upper ends of the vertical support rods 10 can be connected to the frame tail end connecting plate 200 in a welding manner, the number of the vertical support rods 10 can be two, and the upper ends of the two vertical support rods 10 are respectively welded to two sides of the frame tail end connecting plate 200.
The front end of the longitudinal adjusting rod 20 is connected to the lower end of the vertical supporting rod 10 in a bolt connection manner, so that the longitudinal adjusting rod 20 can adjust the connection position with the lower end of the vertical supporting rod 10, and the rear guard rail 30 is connected to the rear end of the longitudinal adjusting rod 20. The rear guard rail 30 plays a role of protection.
Specifically, as shown in fig. 4, the rear guard rail 30 includes: a first transverse plate 31, a second transverse plate 32, a third transverse plate 33, a first vertical plate 34, a second vertical plate 35 and a third vertical plate 36, wherein one end of the first vertical plate 34 opposite to the first transverse plate 31 and one end of the second transverse plate 32 are bent, the first vertical plate 34 is connected between one end of the first transverse plate 31 and one end of the second transverse plate 32, the second vertical plate 35 is bent opposite to the other end of the first transverse plate 31, the second vertical plate 35 is opposite to the first vertical plate 34, the third vertical plate 36 is bent opposite to the other end of the second transverse plate 32, the third vertical plate 36 and the second vertical plate 35 extend towards each other, the third vertical plate 36 is bent to be provided with an overlapping part 37, the end part of the second vertical plate 35 is welded at the overlapping part 37, one end of the third transverse plate 33 is connected at the overlapping part 37 and the other end is connected to the first vertical plate 34, the third transverse plate 33 is positioned between the first transverse plate 31 and the second transverse plate 32, both ends of the rear guard rail 30 are provided with stoppers 39. The longitudinal section of the rear guard rail 30 is substantially in a shape of Chinese character 'ri', the overlapping portion 37 can facilitate the overlapping of the end portion of the second vertical plate 35, and further facilitate the welding and fixing of the end portion of the second vertical plate 35, and the structural strength of the rear guard rail 30 is improved, so that the rear guard rail can better play a role in protection.
In addition, the other end of the third horizontal plate 33 is connected to the first vertical plate 34, so that the structural strength of the rear guard rail 30 can be further improved, and the collision strength can be enhanced. For example, as shown in fig. 4, the other end of the third transverse plate 33 is provided with a bent portion 38, and the bent portion 38 is overlapped and welded on the first vertical plate 34. The welding method is simple and reliable, and the structural strength of the rear guard rail 30 can be further improved.
Therefore, by reasonably arranging the rear guard rail 30, the structural strength of the rear guard rail 30 can be effectively improved, and the structural strength of the rear guard rail 30 device can be further improved, so that the protection effect of the rear guard rail 30 device can be improved.
Optionally, the rear guard rail 30 is a steel member having a material property of not less than 700L. By selecting an appropriate steel plate, the rear guard rail 30 having higher structural strength can be manufactured, so that the protective function of the rear guard rail 30 can be enhanced.
Wherein, the rear guard rail 30 is a rolled integrally formed guard rail. The rear guard rail 30 integrally formed by rolling can effectively reduce the wall thickness of the rear guard rail 30, and can reduce the weight and save the cost under the condition of ensuring high protection capability. Further, the wall thickness d of the rear guard rail 30 satisfies the relation: d is more than or equal to 2mm and less than or equal to 3 mm. For example, the wall thickness d of the rear guard rail 30 may be 2.5 mm. The rear guard rail 30 thus configured can effectively reduce the weight of the rear guard rail 30, and can prevent the rear guard rail 30 from being excessively heavy. The rear guard rail 30 may have a height of 120mm and a width of 80 mm.
According to an alternative embodiment of the present invention, as shown in fig. 1 and 3, the rear guard 100 may further include: and a first reinforcing plate 40, the first reinforcing plate 40 being fixed to the rear guard rail 30, the first reinforcing plate 40 being further coupled to the rear end of the longitudinal adjustment bar 20. The first reinforcing plate 40 may be coupled between the longitudinal adjustment bar 20 and the rear guard rail 30, and may play a reinforcing role therebetween, so that the structural strength of the rear guard 100 at the junction of the rear guard rail 30 may be further improved, and the overall protection effect of the rear guard 100 may be improved. The first stiffening web 40 may be made of Q345C material with a wall thickness of 2.5 mm.
Alternatively, as shown in fig. 6, the first reinforcing plate 40 has a U-shape, and the first reinforcing plate 40 is fastened to the rear guard rail 30. The first reinforcing plate 40 thus provided may cover more area of the rear guard rail 30, so that the structural strength of the rear guard rail 30 may be better reinforced, and the coupling strength with the longitudinal adjustment rod 20 may also be better secured.
Wherein the first reinforcing plate 40 is provided with a plurality of weld holes 41, as shown in fig. 5. The plurality of welding holes 41 may increase the welding strength of the first reinforcing plate 40 and the rear guard rail 30, may prevent the risk of cracks at the welded portion, and may improve the structural strength at the rear guard rail 30.
Further, as shown in fig. 1 and 3, the rear guard 100 may further include: and a second reinforcing plate 50, the second reinforcing plate 50 being connected between the rear end of the longitudinal adjustment lever 20 and the first reinforcing plate 40. That is, on the basis of the first reinforcing plate 40, the rear guard 100 is further provided with a second reinforcing plate 50, and the second reinforcing plate 50 may be disposed at one side of the longitudinal adjustment rod 20 to further reinforce the connection strength between the rear end of the longitudinal adjustment rod 20 and the first reinforcing plate 40, so that the structural strength of the rear guard 100 may be better reinforced, and the guard effect thereof may be improved.
The second reinforcing plates 50 are distributed at both sides of the rear end of the longitudinal adjustment rod 20, and the second reinforcing plates 50 are welded and fixed between the rear end of the longitudinal adjustment rod 20 and the first reinforcing plate 40. That is, each longitudinal adjustment rod 20 substantially corresponds to two second reinforcing plates 50, and the two second reinforcing plates 50 can reinforce the longitudinal adjustment rod 20 at two sides of the rear end thereof, so that a combined reinforcing effect can be achieved, and the protection effect of the rear protection device 100 can be better improved.
As shown in fig. 7 and 8, the longitudinal adjustment lever 20 includes: the first fixing plate 21 and the second fixing plate 22 are opened toward each other, the first fixing plate 21 and the second fixing plate 22 are both U-shaped, both side walls of the first fixing plate 21 are fixed to the outer sides of both side walls of the second fixing plate 22 in an overlapping manner, and both the first fixing plate 21 and the second fixing plate 22 are provided with at least three fastener holes 23. The longitudinal adjusting rod 20 mainly plays a role in adjustment, and the mutual matching of the first fixing plate 21 and the second fixing plate 22 can solve the problem of low structural strength of the longitudinal adjusting rod 20, further improve the structural strength of the rear protection device 100, and improve the protection effect of the rear protection device 100. The fastener hole 23 is matched with a fastener, the fastener can comprise a bolt, the bolt can be a bolt M18 with the performance grade of 10.9, the structural strength of the bolt is high, and the problem that the strength of the bolt is not high can be solved. The first fixing plate 21 and the second fixing plate 22 are both made of Q345C material, the wall thickness of the first fixing plate 21 is 6mm, and the wall thickness of the second fixing plate 22 is 5 mm.
Further, as shown in fig. 7 and 8, both side walls of the first fixing plate 21 are overlapped and welded to the outside of both side walls of the second fixing plate 22. The first fixing plate 21 and the second fixing plate 22 fixed by welding are reliably connected, and the structural strength of the longitudinal adjusting rod 20 can be further improved.
As shown in fig. 9 and 10, the vertical support pole 10 includes: and a third fixing plate 11 and a fourth fixing plate 12 which are opened toward each other, wherein the third fixing plate 11 and the fourth fixing plate 12 are both U-shaped, and both side walls of the third fixing plate 11 are fixed outside both side walls of the fourth fixing plate 12 in an overlapping manner. The vertical supporting rod 10 can play a role in connecting the vertical supporting rods, and the structural strength of the vertical supporting rod 10 can be improved through the mutual matching of the third fixing plate 11 and the fourth fixing plate 12, so that the structural strength of the rear protection device 100 can be further improved, and the protection effect of the rear protection device 100 can be improved. The third fixing plate 11 and the fourth fixing plate 12 are both made of a material Q345C, the wall thickness of the third fixing plate 11 is 6mm, and the wall thickness of the fourth fixing plate 22 is 3 mm.
Further, both side walls of the third fixing plate 11 are overlapped and welded to the outside of both side walls of the fourth fixing plate 12. The third fixing plate 11 and the fourth fixing plate 12 which are fixed by welding are reliably connected, and the structural strength of the vertical support rod 10 can be further improved.
Alternatively, as shown in fig. 1, a third reinforcing plate 60 is welded and fixed to the inner side of the vertical support bar 10. The third reinforcing plate 60 is welded and fixed between the frame tail end connecting plate 200 and the vertical supporting rod 10, so that the third reinforcing plate 60 can effectively reinforce the connection strength between the vertical supporting rod 10 and the frame tail end connecting plate 200, the structural strength of the rear protection device 100 can be further enhanced, and the protection effect of the rear protection device 100 can be improved.
According to the utility model discloses freight train, including the back protector 100 of the freight train of above-mentioned embodiment.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A rear fender of a truck, comprising:
a vertical support rod;
the vertical adjusting rod is connected to the lower end of the vertical supporting rod;
the back rail guard, back rail guard connect in the rear end of indulging the pole, back rail guard includes: the device comprises a first transverse plate, a second transverse plate, a third transverse plate, a first vertical plate, a second vertical plate and a third vertical plate, wherein the first vertical plate is bent and connected between one end of the first transverse plate and one end of the second transverse plate relative to one end of the first transverse plate and one end of the second transverse plate, the other end of the second vertical plate, which is opposite to the first transverse plate, is bent and is opposite to the first vertical plate, the third vertical plate is bent relative to the other end of the second transverse plate and is opposite to the first vertical plate, the third vertical plate and the second vertical plate extend towards each other, the third vertical plate is bent and provided with a lap joint part, the tip welding of second riser is in overlap joint department, the one end of third diaphragm is connected overlap joint department and the other end is connected on the first riser, the third diaphragm is located first diaphragm with between the second diaphragm.
2. The rear guard of a truck as claimed in claim 1, wherein said rear guard rail is a steel member having a material property of not less than 700L.
3. A rear guard for a truck as claimed in claim 1, wherein said rear guard rail is a rolled integrally formed guard rail.
4. A rear guard for a wagon as claimed in claim 3, wherein the wall thickness d of the rear guard rail satisfies the relationship: d is more than or equal to 2mm and less than or equal to 3 mm.
5. The rear protection device for the wagon of claim 1, wherein the other end of the third cross plate is provided with a bent portion, and the bent portion is overlapped and welded on the first vertical plate.
6. The rear fender of a truck according to claim 1, further comprising: the first reinforcing plate is fixed to the rear protective guard and is further connected to the rear end of the longitudinal adjusting rod.
7. The rear guard of a truck as claimed in claim 6, wherein said first reinforcing plate is U-shaped and is fastened to said rear guard rail.
8. The rear fender of a truck as in claim 7, wherein the first reinforcement panel is provided with a plurality of weld apertures.
9. The rear fender of a truck according to claim 6, further comprising: the second reinforcing plate is connected between the rear end of the longitudinal adjusting rod and the first reinforcing plate.
10. The rear fender of a truck according to claim 9, wherein the second reinforcing plate is disposed at both sides of the rear end of the longitudinal rod and welded and fixed between the rear end of the longitudinal rod and the first reinforcing plate.
11. The rear fender of a truck according to claim 1, wherein the longitudinal adjustment rod comprises: the first fixing plate and the second fixing plate are opened towards each other, the first fixing plate and the second fixing plate are both U-shaped, two side walls of the first fixing plate are fixed to the outer sides of two side walls of the second fixing plate in an overlapping mode, and the first fixing plate and the second fixing plate are provided with at least three fastener holes.
12. The rear fender of the truck as defined in claim 11, wherein two side walls of the first retainer plate are overlapped and welded to outer sides of two side walls of the second retainer plate.
13. The rear fender of the truck according to claim 1, wherein the vertical support bar comprises: the fixing device comprises a third fixing plate and a fourth fixing plate which are open towards each other, wherein the third fixing plate and the fourth fixing plate are both U-shaped, and two side walls of the third fixing plate are fixed on the outer sides of two side walls of the fourth fixing plate in an overlapping mode.
14. The rear fender of the truck as defined in claim 13, wherein two side walls of the third retaining plate are overlapped and welded to outer sides of two side walls of the fourth retaining plate.
15. The rear fender of a truck as defined in claim 1, wherein a third reinforcing plate is welded and fixed to an inner side of the vertical support rod.
16. A wagon, comprising a rear fender of a wagon as claimed in any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070428.8U CN210258329U (en) | 2019-07-09 | 2019-07-09 | Truck and rear protection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070428.8U CN210258329U (en) | 2019-07-09 | 2019-07-09 | Truck and rear protection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210258329U true CN210258329U (en) | 2020-04-07 |
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ID=70048178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921070428.8U Active CN210258329U (en) | 2019-07-09 | 2019-07-09 | Truck and rear protection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210258329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329191A (en) * | 2019-07-09 | 2019-10-15 | 北京福田戴姆勒汽车有限公司 | Lorry and its rear |
-
2019
- 2019-07-09 CN CN201921070428.8U patent/CN210258329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329191A (en) * | 2019-07-09 | 2019-10-15 | 北京福田戴姆勒汽车有限公司 | Lorry and its rear |
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