CN217532790U

CN217532790U - Protection device and vehicle after can overturning

Info

Publication number: CN217532790U
Application number: CN202221686058.2U
Authority: CN
Inventors: 于宁; 李建华; 王继瑶; 孙海波
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-10-04
Anticipated expiration: 2032-07-01

Abstract

The utility model relates to a vehicle chassis technical field especially relates to a protector and vehicle after can overturning. The turnover rear protection device comprises a base, a supporting arm, a protection beam and a positioning piece, wherein the base is installed on the side wall of the tail part of the frame, a rotating shaft extending outwards along the thickness direction of the rotating shaft is arranged on the end face of the base, which deviates from the frame, and an operation hole is formed in the base. One end of the supporting arm is connected with the protective beam, and the other end of the supporting arm is rotatably sleeved on the rotating shaft. The supporting arm is provided with a first hole and a second hole which are distributed at intervals along the circumferential direction of the rotating shaft. When the supporting arm is turned downwards and the first hole and the operation hole are coaxial, the positioning piece sequentially penetrates through the first hole and the operation hole to lock the supporting arm on the base, and the protective beam is lower than the frame; when the support arm is turned upwards and the second hole is coaxial with the operation hole, the positioning piece sequentially penetrates through the second hole and the operation hole to lock the support arm on the base, and the protection beam is higher than the frame. The vehicle adopts the turnover rear protection device, so that the frame structure is simplified.

Description

Protection device and vehicle after can overturning

Technical Field

The utility model relates to a vehicle chassis technical field especially relates to a protector and vehicle after can overturning.

Background

The middle axle-mounted truck generally comprises a truck and a trailer, and when the truck does not carry the trailer, a rear protection device with high reliability needs to be installed at the tail part of the frame of the truck so as to prevent rear vehicles and pedestrians from entering the bottom of the truck and causing safety accidents. When the truck that carries cargo takes the trailer, for avoiding the connecting rod emergence of back protector and trailer to interfere, need dismantle connecting bolt in order to demolish back protector, should dismantle the process loaded down with trivial details, waste time and energy.

In order to solve the above problems, the conventional rear protection device is designed to be a reversible structure and is rotatably mounted on the frame through a base in the rear protection device. When the truck is not connected with the trailer, the rear protection device is turned to the lower part of the frame to play a protection role. When the truck is connected with the trailer, the rear protection device is turned over to the upper part of the frame so as to avoid interference with the connecting rod of the trailer. The problems existing at present are that: the structure of the protective device after overturning is more complex, the overturning operation of the protective beam is inconvenient, and the cost is higher.

Therefore, there is a need for a reversible rear guard and vehicle that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protector and vehicle after can overturning to simplify protector's after can overturning structure, the guard beam upset operation of being convenient for, reduce cost.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a reversible rear guard, comprising:

the base can be arranged on the side wall of the tail part of the frame, a rotating shaft extending outwards along the thickness direction of the frame is arranged on the end face of the base, which is far away from the frame, and an operating hole is formed in the base;

the supporting arm and the protective beam are arranged, one end of the supporting arm is connected with the protective beam, and the other end of the supporting arm is rotatably sleeved on the rotating shaft; the supporting arm is provided with a first hole and a second hole which are distributed at intervals along the circumferential direction of the rotating shaft; and

when the supporting arm is turned downwards and the first hole is coaxial with the operating hole, the positioning piece can sequentially penetrate through the first hole and the operating hole so as to lock the supporting arm on the base, and the protective beam is lower than the frame; when the support arm is turned upwards and the second hole is coaxial with the operation hole, the positioning piece can sequentially penetrate through the second hole and the operation hole so as to lock the support arm on the base, and the protection beam is higher than the frame.

Preferably, the base is integrally formed by casting, and the base includes:

the mounting plate is arranged on the side wall of the tail part of the frame; and

the mounting panel deviates from the terminal surface of frame is provided with along its thickness direction outside extension the boss, be provided with on the boss the pivot has been seted up the handle hole.

Preferably, the boss is further provided with a first reinforcing hole and a second reinforcing hole, the first reinforcing hole, the operation hole and the second reinforcing hole are arranged at intervals along the circumferential direction of the rotating shaft, and the operation hole is located between the first reinforcing hole and the second reinforcing hole;

the reversible rear protection device further comprises:

when the first hole is coaxial with the operation hole, the second hole is coaxial with the first reinforcing hole, and the locking piece can sequentially penetrate through the second hole and the first reinforcing hole; when the second hole with the operation hole is coaxial, the first hole with the second is strengthened the hole coaxial, retaining member can wear to locate in proper order first hole with the second is strengthened downtheholely.

Preferably, the locking member is a bolt, the first reinforcing hole and the second reinforcing hole are threaded holes, and the locking member can be in threaded connection with the first reinforcing hole or the second reinforcing hole.

Preferably, the end surface of the boss with the rotating shaft is also provided with a stop block; the edge of the supporting arm is provided with a limiting part in an outward protruding mode, and when the supporting arm is turned downwards and the first hole is coaxial with the operating hole, the limiting part abuts against the side wall of the stop block.

Preferably, the mounting plate is bolted or welded to the rear part of the frame.

Preferably, the positioning member includes a pin shaft and a handle which are integrally formed, and the pin shaft can penetrate through the first hole or the second hole and then be in clamping fit with the operation hole.

Preferably, the invertible rear guard further comprises:

the baffle ring is fixedly sleeved on the rotating shaft; and

the two ends of the elastic piece respectively abut against the side wall of the supporting arm and the baffle ring, and the elastic piece is configured to abut against the supporting arm on the base.

Preferably, the elastic member is a spring, and the spring is sleeved on the rotating shaft.

A vehicle comprises the turnover rear protection device.

The utility model has the advantages that:

the utility model provides a protector installs in the afterbody of frame after can overturning. When the trailer is not connected to the tail of the frame, the support arm turns downwards and the first hole is coaxial with the operation hole, the positioning piece sequentially penetrates through the first hole and the operation hole to lock the support arm on the base, the protection beam is lower than the frame to play a protection role, a rear vehicle and pedestrians are prevented from entering the vehicle bottom, and safety is improved. When the trailer is connected with the trailer, the supporting arm turns upwards and the second hole is coaxial with the operating hole, the positioning piece sequentially penetrates through the second hole and the operating hole to lock the supporting arm on the base, and the protective beam is higher than the trailer to avoid the interference between the protective beam and the connecting rod of the trailer. The turnover rear protection device has simple structure and lower cost. Meanwhile, after the protective beam is turned upwards or downwards, the protective beam can be stably fixed above or below the frame only through the positioning piece, so that the turning operation of the protective beam is simple and rapid, and the turning operation is easy to realize.

The utility model provides a vehicle is through adopting above-mentioned protector after can overturning for the structure of frame is simpler, and the cost is lower. Meanwhile, after the protective beam is turned upwards or downwards, the protective beam can be stably fixed above or below the frame only through the positioning piece, so that the turning operation of the protective beam is simple and rapid, and the turning operation is easy to realize.

Drawings

Fig. 1 is a schematic structural view illustrating a reversible rear guard according to an embodiment of the present invention mounted on a vehicle frame;

fig. 2 is a schematic structural diagram of a support arm according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a base according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

10. a frame;

1. a base; 11. mounting a plate; 111. mounting holes; 112. a weight reduction groove; 12. a boss; 121. an operation hole; 122. a first reinforcement hole; 123. a second reinforcement hole; 13. a rotating shaft; 14. a stopper; 2. a support arm; 21. a first hole; 22. a second hole; 23. a third aperture; 24. a limiting part; 3. a guard beam; 4. a positioning member; 41. a pin shaft; 42. a handle; 5. a baffle ring; 6. an elastic member.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The technical solution of the present invention is further explained by the following embodiments with reference to the drawings.

The embodiment discloses a vehicle, in particular to a middle axle load truck. Of course, the vehicle may be other types of vehicles, and is not limited in particular. The middle axle truck comprises a truck and a trailer, and a rear protection device capable of turning is arranged at the tail part of a frame 10 of the truck. When the truck is not connected with the trailer, the protection device can be turned over to the lower part of the frame 10 after the truck is turned over, so that the protection effect is achieved. When the truck is connected to the trailer, the rear protection device can be turned over to the upper side of the frame 10 to avoid interference with the connecting rod of the trailer. The structure of the protective device after being overturned is complex at present, and the overturning operation of the existing protective beam is inconvenient.

In order to solve the above problems, as shown in fig. 1-3, this embodiment further discloses a reversible rear protection device, which specifically includes a base 1, a supporting arm 2, a protection beam 3, and a positioning element 4, where the base 1 can be installed on a side wall of a tail portion of the frame 10, a rotating shaft 13 extending outward in a thickness direction of the end surface of the base 1 away from the frame 10 is provided, and the base 1 is provided with an operation hole 121. One end of the supporting arm 2 is connected with the protective beam 3, and the other end of the supporting arm 2 is rotatably sleeved on the rotating shaft 13. The support arm 2 is provided with a first hole 21 and a second hole 22 which are distributed at intervals along the circumferential direction of the rotating shaft 13. When the support arm 2 is turned downwards and the first hole 21 is coaxial with the operation hole 121, the positioning element 4 can sequentially penetrate through the first hole 21 and the operation hole 121 to lock the support arm 2 on the base 1, and the protection beam 3 is lower than the frame 10; when the supporting arm 2 is turned upwards and the second hole 22 is coaxial with the operation hole 121, the positioning element 4 can sequentially penetrate through the second hole 22 and the operation hole 121 to lock the supporting arm 2 on the base 1, and the protection beam 3 is higher than the frame 10.

When the trailer is not connected to the tail of the frame 10, the support arm 2 turns downwards and the first hole 21 is coaxial with the operation hole 121, the positioning piece 4 sequentially penetrates through the first hole 21 and the operation hole 121 to lock the support arm 2 on the base 1, the protection beam 3 is lower than the frame 10, a protection effect is achieved, the rear vehicle and pedestrians are prevented from entering the vehicle bottom, and safety is improved. When the trailer is connected to the rear portion of the trailer frame 10, the supporting arm 2 is turned upwards and the second hole 22 is coaxial with the operation hole 121, the positioning element 4 sequentially penetrates through the second hole 22 and the operation hole 121 to lock the supporting arm 2 on the base 1, and the protection beam 3 is higher than the trailer frame 10 to prevent the protection beam 3 from interfering with the connecting rod of the trailer. The turnover rear protection device has simple structure and lower cost. Meanwhile, after the protective beam 3 is turned upwards or downwards, the protective beam 3 can be stably fixed above or below the frame 10 only by the positioning piece 4, so that the turning operation of the protective beam 3 is simple and rapid, and is easy to realize.

As shown in figure 1, the guard beam 3 is made of square steel, is cheap and easy to obtain, can be directly purchased and obtained, and has low cost. Meanwhile, the square steel is of a hollow structure, so that the structural strength of the protective beam 3 is ensured, the weight is reduced, and the lightweight of the protective device after turnover is facilitated.

The quantity of base 1 and support arm 2 of this embodiment is two, and two bases 1 are installed respectively in the both sides of frame 10 afterbody along its width direction, and the one end of two support arms 2 links to each other with guard beam 3, and the other end rotationally overlaps respectively and locates on the pivot 13 that corresponds base 1. The protective beam 3 is overturned through the two supporting arms 2, so that the connection strength of the protective beam 3 and the supporting arms 2 is enhanced, and the structural strength and the stability of the overturnable rear protective device are improved.

As shown in fig. 1, the positioning member 4 includes a pin 41 and a handle 42, which are integrally formed, and the pin 41 can be inserted through the first hole 21 or the second hole 22 and then snap-fitted into the operation hole 121. The release and the locking of the protection beam 3 are realized by inserting and pulling the pins through the handle 42, the operation is simple and convenient, and the turnover efficiency of the protection beam 3 is improved.

As shown in fig. 1 and 2, the edges of the support arms 2 have a burring structure to enhance the structural strength of the support arms 2. The tip of support arm 2 passes through bolted connection on guard beam 3 to realize the demountable installation of support arm 2 and guard beam 3, be convenient for guard beam 3 and support arm 2's equipment and change. Of course, the supporting arm 2 may also be connected with the guard beam 3 by welding or the like. The third hole 23 has been seted up to the tip that the support arm 2 is close to base 1, and pivot 13 wears to locate in the third hole 23 to make support arm 2 can drive protective beam 3 revolute pivot 13 and upwards or overturn downwards.

Specifically, the protection device after being overturned further comprises a baffle ring 5 and an elastic piece 6, wherein the baffle ring 5 is sleeved and fixed on the rotating shaft 13. Two ends of the elastic element 6 respectively press against the side wall of the supporting arm 2 and the baffle ring 5, and the elastic element 6 is used for pressing the supporting arm 2 against the base 1. The baffle ring 5 can be fixed on the rotating shaft 13 in a threaded connection or clamping connection mode, and the elastic piece 6 is in a compression state, so that the elastic restoring force is always kept, the support arm 2 is abutted against the base 1 under the action of the elastic restoring force, and the positioning of the support arm 2 along the width direction of the frame 10 is realized. Meanwhile, the elastic piece 6 is flexibly connected with the supporting arm 2, so that the supporting arm 2 can flexibly rotate, and the overturning difficulty of the supporting arm 2 and the protective beam 3 is reduced.

The elastic member 6 of this embodiment is a spring, and the spring is sleeved on the rotating shaft 13, so as to increase the stability of the spring. Of course, the elastic member 6 may be elastic rubber or the like.

It should be noted that the base in the existing turnover rear protection device is designed in a split manner, so that the installation process is complicated and the consumed time is long. The installation accuracy of the base is poor due to machining errors and assembling errors of split parts of the existing base. Therefore, as shown in fig. 1 and 3, the base 1 of the present embodiment is integrally formed by casting, and has a simple processing process and is convenient to install. Due to the adoption of the integral casting molding, the assembly process of the base 1 is omitted, and the assembly error is eliminated, so that the mounting precision of the base 1 on the frame 10 is improved.

Specifically, the base 1 includes a mounting plate 11 and a boss 12, and the mounting plate 11 is disposed on a side wall of the rear portion of the frame 10. The end face of the mounting plate 11 departing from the frame 10 is provided with a boss 12 extending outwards along the thickness direction thereof, and the boss 12 is provided with a rotating shaft 13 and an operating hole 121. The mounting plate 11 is bolted or welded to the rear of the frame 10 to improve the connection strength between the mounting plate 11 and the frame 10.

As shown in fig. 1 and 3, a plurality of mounting holes 111 are respectively formed on two opposite sides of the mounting plate 11, a plurality of through holes are correspondingly formed in the frame 10, and the mounting holes 111 and the through holes are coaxially mounted in a one-to-one correspondence manner and have the same number. The bolts sequentially pass through the corresponding mounting holes 111 and the through holes and then are locked with the nuts, so that the base 1 is detachably mounted at the tail part of the frame 10, and the base 1 is convenient to disassemble, assemble and replace. The mounting plate 11 is provided with a lightening groove 112 to lighten the weight of the mounting plate 11. The rotation shaft 13 is a hollow structure to reduce the weight of the base 1.

It should be noted that, the boss 12 not only can enhance the structural strength of the base 1, but also can increase the distance between the support arm 2 and the mounting plate 11 of the base 1, so as to avoid the support arm 2 from friction interference with the mounting plate 11 and affecting the normal up-and-down turning of the support arm 2.

Further, the boss 12 is further provided with a first reinforcing hole 122 and a second reinforcing hole 123, the first reinforcing hole 122, the operation hole 121 and the second reinforcing hole 123 are arranged at intervals along the circumferential direction of the rotating shaft 13, and the operation hole 121 is located between the first reinforcing hole 122 and the second reinforcing hole 123. It can be understood that the central angles of the first reinforcing holes 122 and the operation holes 121, the operation holes 121 and the second reinforcing holes 123, and the first holes 21 and the second holes 22 are the same, that is, the distribution intervals of the first reinforcing holes 122, the operation holes 121 and the second reinforcing holes 123 are the same as the distribution intervals of the first holes 21 and the second holes 22.

The turnover rear protection device further comprises a locking member, when the first hole 21 is coaxial with the operation hole 121, namely the protection beam 3 is turned to the lower part of the frame 10, the second hole 22 is coaxial with the first reinforcing hole 122, and the locking member can be sequentially arranged in the second hole 22 and the first reinforcing hole 122 in a penetrating manner. When the second hole 22 is coaxial with the operation hole 121, that is, the protection beam 3 is turned over to the upper side of the frame 10, the first hole 21 is coaxial with the second reinforcement hole 123, and the locking member can sequentially penetrate through the first hole 21 and the second reinforcement hole 123.

When the truck is connected for a long time or not connected with a trailer, the protective beam 3 needs to keep a fixed turning position for a long time, the connection strength of the support arm 2 and the base 1 is further enhanced through the matching of the locking piece and the first reinforcing hole 122 or the second reinforcing hole 123, the positioning piece 4 and the locking piece realize the double positioning of the support arm 2, and the support arm 2 and the protective beam 3 can be prevented from shaking relative to the frame 10.

The retaining member of this embodiment is a bolt, and first reinforcing hole 122 and second reinforcing hole 123 are threaded holes, and the retaining member can be threaded in first reinforcing hole 122 or second reinforcing hole 123. And the bolt fixing mode is adopted, so that the connection strength is high, and the operation is simple and convenient.

It should be noted that, as shown in fig. 1-3, the end surface of the boss 12 having the rotation shaft 13 is further provided with a stopper 14. The edge of the supporting arm 2 is provided with a limiting part 24 protruding outwards, and when the supporting arm 2 is turned downwards and the first hole 21 is coaxial with the operation hole 121, the limiting part 24 abuts against the side wall of the stopper 14. The stop 14 serves to limit the extreme position of the support arm 2 in the downward direction, so that an excessive tilting of the support arm 2 is avoided. Meanwhile, the first hole 21 can be quickly aligned with the operation hole 121 without repeatedly adjusting the turning angle of the support arm 2.

The vehicle of this embodiment is through adopting above-mentioned protector after can overturning for the structure of frame 10 is simpler, and the cost is lower. Meanwhile, after the protective beam 3 is turned upwards or downwards, the protective beam 3 can be stably fixed above or below the frame 10 only by the positioning piece 4, so that the turning operation of the protective beam 3 is simple and rapid, and is easy to realize.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A reversible rear guard, comprising:

the bicycle frame comprises a base (1) which can be arranged on the side wall of the tail part of a bicycle frame (10), wherein a rotating shaft (13) extending outwards along the thickness direction of the end face of the base (1) departing from the bicycle frame (10) is arranged, and an operating hole (121) is formed in the base (1);

the supporting device comprises a supporting arm (2) and a protective beam (3), wherein one end of the supporting arm (2) is connected with the protective beam (3), and the other end of the supporting arm (2) is rotatably sleeved on the rotating shaft (13); the supporting arm (2) is provided with a first hole (21) and a second hole (22) which are distributed at intervals along the circumferential direction of the rotating shaft (13); and

the positioning piece (4) can sequentially penetrate through the first hole (21) and the operation hole (121) to lock the support arm (2) on the base (1) when the support arm (2) turns downwards and the first hole (21) is coaxial with the operation hole (121), and the protective beam (3) is lower than the frame (10); when the supporting arm (2) is turned upwards and the second hole (22) is coaxial with the operation hole (121), the positioning piece (4) can sequentially penetrate through the second hole (22) and the operation hole (121) so as to lock the supporting arm (2) on the base (1), and the protection beam (3) is higher than the frame (10).

2. The invertible rear guard of claim 1, wherein said base (1) is integrally formed by casting, said base (1) comprising:

the mounting plate (11) is arranged on the side wall of the tail part of the frame (10); and

boss (12), mounting panel (11) deviate from the terminal surface of frame (10) is provided with along its thickness direction outside extension boss (12), be provided with on boss (12) pivot (13) have been seted up handle hole (121).

3. The invertible rear protection device according to claim 2, wherein the boss (12) further defines a first reinforcement hole (122) and a second reinforcement hole (123), the first reinforcement hole (122), the operation hole (121), and the second reinforcement hole (123) are spaced apart from each other along the circumferential direction of the rotating shaft (13), and the operation hole (121) is located between the first reinforcement hole (122) and the second reinforcement hole (123);

the reversible rear guard further comprises:

a locking member, when the first hole (21) is coaxial with the operating hole (121), the second hole (22) is coaxial with the first reinforcing hole (122), and the locking member can be sequentially arranged in the second hole (22) and the first reinforcing hole (122) in a penetrating manner; when the second hole (22) is coaxial with the operation hole (121), the first hole (21) is coaxial with the second reinforcing hole (123), and the locking piece can sequentially penetrate through the first hole (21) and the second reinforcing hole (123).

4. The invertible rear guard of claim 3, wherein said retaining member is a bolt, said first reinforcement hole (122) and said second reinforcement hole (123) are both threaded, and said retaining member is threadably connected to said first reinforcement hole (122) or said second reinforcement hole (123).

5. The reversible rear guard according to claim 2, characterized in that the end surface of said boss (12) having said shaft (13) is further provided with a stopper (14); the edge of the supporting arm (2) is provided with a limiting part (24) in an outward protruding mode, and when the supporting arm (2) turns downwards and the first hole (21) is coaxial with the operation hole (121), the limiting part (24) abuts against the side wall of the stop block (14).

6. The reversible rear guard according to claim 2, characterized in that the mounting plate (11) is bolted or welded to the rear of the frame (10).

7. The reversible rear guard according to claim 1, characterized in that said positioning member (4) comprises an integrally formed pin (41) and a handle (42), said pin (41) can pass through said first hole (21) or said second hole (22) and then snap-fit with said operation hole (121).

8. The invertible rear guard of claim 1, further comprising:

the baffle ring (5) is sleeved and fixed on the rotating shaft (13); and

the two ends of the elastic piece (6) respectively abut against the side wall of the supporting arm (2) and the baffle ring (5), and the elastic piece (6) is configured to abut against the supporting arm (2) on the base (1).

9. The invertible rear guard according to claim 8, wherein said resilient member (6) is a spring, and said spring is disposed on said shaft (13).

10. A vehicle comprising the reversible rear guard of any one of claims 1 to 9.