CN212579790U

CN212579790U - Semitrailer is bumper for protection

Info

Publication number: CN212579790U
Application number: CN202021360814.3U
Authority: CN
Inventors: 王金峰; 徐杰; 徐长春; 祝广峰
Original assignee: Xuzhou Aofeng Transportation Equipment Co ltd
Current assignee: Xuzhou Aofeng Transportation Equipment Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-02-23
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a semitrailer is bumper for protection, which comprises a top plate, a column, crossbeam and buffer, one side of roof is equipped with a plurality of first hinge seats, the opposite side is equipped with a plurality of second hinge seats, articulated stand on the first hinge seat, the equal fixed connection crossbeam in lower part of stand, buffer includes interior pole and urceolus, interior pole inserts in the urceolus, the inner wall of urceolus is equipped with a plurality of spouts along the axial, the fixed slider that is equipped with corresponding with the spout on the interior pole, slider sliding connection spout, interior pole is located the one end fixed connection spring in the urceolus, the fixed end cover that is equipped with in one end of urceolus, and the inside rigid coupling spring of end cover, the fixed spacing ring that is equipped with of the other end of urceolus, the position that interior pole is located the urc. The utility model belongs to the technical field of the semitrailer, advantage compared with prior art lies in: the road protection device can adapt to various road conditions, is safe in protection and flexible in use.

Description

Semitrailer is bumper for protection

Technical Field

The utility model relates to a semitrailer technical field specifically indicates a semitrailer is bumper for protection.

Background

The bumper of the trailer has two aspects, one being the rear bumper and one being the side bumper. The side bumper and the rear bumper are mainly installed to prevent rear-end collision of a rear automobile, so that serious loss is caused to a trailer or a small automobile, and a safety guarantee can be provided at the part.

Currently, a bumper is generally formed by welding steel pipes or steel pipes, and has a cap brim steel shape or a steel plate bending shape. However, the bumpers are in a relatively fixed integrated form, have high rigidity and can also play a role in protecting a side face or rear end collision. However, in the using process, if the semitrailer runs on bumpy and complex road conditions, the bumper may collide or bottom-touch to cause deflection. And when the foreign matter is bored into at the vehicle bottom, the bumper can hinder popping out of foreign matter, and is inflexible in the use, can't deal with multiple road conditions.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a semitrailer protection bumper of adaptable multiple road conditions, protection safety, use in a flexible way.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the design is that the protective bumper of a semitrailer comprises a top plate, a stand column, a cross beam and a buffer device, wherein one side of the top plate is provided with a plurality of first hinge seats, the other side of the top plate is provided with a plurality of second hinge seats, the first hinge seats are hinged with the stand column, the lower part of the stand column is fixedly connected with the cross beam, the buffer device comprises an inner rod and an outer barrel, the inner rod is inserted into the outer barrel, the inner wall of the outer barrel is axially provided with a plurality of sliding grooves, the inner rod is fixedly provided with sliding blocks corresponding to the sliding grooves, the sliding blocks are connected with the sliding grooves in a sliding manner, the inner rod is positioned at one end of the outer barrel and fixedly connected with springs, one end of the outer barrel is fixedly provided with an end cover, the end cover is fixedly connected with the springs inwards, the other end of the outer barrel is fixedly provided with a limit ring, under the static state of the buffer device, the limiting block is in contact with the limiting ring, the spring is in a stretching state, the cross beam is hinged to the inner rod, and the end cover is hinged to the second hinge seat. The buffer device in the design can not be contracted due to the influence of the limiting block, but can be stretched, so that the outer side of the bumper has strong rigidity, and the inner side and the lower side can be deflected when stressed.

Further, when the buffer device is in a static state, the distance between the sliding block and the limiting ring is smaller than or equal to the maximum stretching length of the spring, and the sliding block of the inner rod can play an internal limiting role.

Further, the cross beam is a hollow round tube.

Furthermore, the two ends of the cross beam are arc-shaped and tilt upwards, so that the bumper can be deflected due to sliding when encountering a bulge, and overlarge stress is relieved.

Furthermore, the upright posts and the cross beams are made of aluminum alloy materials.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model discloses a buffer, roof and stand constitute the triangle-shaped frame, utilize the triangle-shaped frame to carry out the protection in the outside, for the bumper that only has the stand, the structure is comparatively stable. The buffer device can not be contracted due to the influence of the limiting block, but can be stretched, so that the outer side of the bumper has strong rigidity, the function of preventing the car from being drilled can be achieved, the bumper can be deflected when stressed at the inner side and the lower side, the bumper is not easy to damage, the discharging of foreign matters at the bottom of the car is facilitated, and the buffer device has good flexibility.

Drawings

Fig. 1 is a side sectional view of the protective bumper of the semitrailer of the utility model.

Fig. 2 is a front view of the protective bumper of the semitrailer of the utility model.

As shown in the figure: 1. the hinge comprises a top plate, 2, a stand column, 3, a cross beam, 4, a buffer device, 5, a first hinge seat, 6, a second hinge seat, 7, an inner rod, 8, an outer cylinder, 9, a sliding groove, 10, a sliding block, 11, a spring, 12, an end cover, 13, a limiting ring, 14 and a limiting block.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.

Examples, see FIGS. 1-2: the utility model discloses a semitrailer protection bumper, including roof 1, stand 2, crossbeam 3 and buffer 4, one side welding of roof 1 sets up a plurality of first hinge seats 5, and the opposite side welds a plurality of second hinge seats 6, articulated stand 2 on the first hinge seat 5, the axial of first hinge seat 5 and second hinge seat 6 all is along the marginal direction of roof 1, crossbeam 3 is all welded to the lower part of stand 2, buffer 4 includes interior pole 7 and urceolus 8, interior pole 7 inserts in urceolus 8, the inner wall of urceolus 8 is equipped with a plurality of spouts 9 along the axial, be fixed with the slider 10 corresponding with spout 9 on interior pole 7, slider 10 sliding connection spout 9, interior pole 7 is located one end welding spring 11 in urceolus 8, the one end of urceolus 8 is fixed and is equipped with end cover 12, just end cover 12 is welding spring 11 inwards, the other end welding spacing ring 13 of urceolus 8, the internal diameter of spacing ring 13 is greater than the diameter and the less than or equal to of interior pole 7 the internal diameter of urceolus 8, interior pole 7 is located the position welding stopper 14 in the urceolus 8 outside, buffer 4 is under quiescent condition, stopper 14 with spacing ring 13 contacts, just spring 11 is in tensile state, crossbeam 3 is articulated interior pole 7, end cover 12 is articulated second hinge seat 6.

The distance between the sliding block 10 and the limiting ring 13 is smaller than or equal to the maximum stretching length of the spring 11 when the buffer device 4 is in a static state, the cross beam 3 is a hollow circular tube, two ends of the cross beam 3 are arc-shaped and tilted upwards, and the upright column 2 and the cross beam 3 are made of aluminum alloy materials.

When the semi-trailer body is used specifically, the semi-trailer body can be used as a rear bumper and a side bumper of the semi-trailer body, a bottom plate is required to be welded on a semi-trailer chassis, the upright post 2 is arranged outside and the buffer device 4 is arranged inside, when the semi-trailer body is impacted, the upright post 2 is stressed to compress the buffer device 4, the inner rod 7 is provided with the limiting block 14, so that the limiting block cannot move inwards, and the upright post 2, the top and the buffer device 4 form a triangular structure, so that the semi-trailer body has good rigidity, can prevent a trolley or an animal from entering and can prevent the semi; when the lower side and the inner side of the cross bar are impacted, the circular tube-shaped cross bar slides, so that the inner rod 7 and the outer cylinder 8 of the buffer device 4 are stretched through the spring 11, the buffer effect is achieved, and the structural integrity of the bumper is kept.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a semitrailer protects and uses bumper which characterized in that: comprises a top plate (1), a stand column (2), a cross beam (3) and a buffer device (4), wherein one side of the top plate (1) is provided with a plurality of first hinge seats (5), the other side of the top plate is provided with a plurality of second hinge seats (6), the stand column (2) is hinged on the first hinge seats (5), the cross beam (3) is fixedly connected with the lower part of the stand column (2), the buffer device (4) comprises an inner rod (7) and an outer barrel (8), the inner rod (7) is inserted into the outer barrel (8), a plurality of sliding grooves (9) are axially arranged on the inner wall of the outer barrel (8), a sliding block (10) corresponding to the sliding grooves (9) is fixedly arranged on the inner rod (7), the sliding block (10) is slidably connected with the sliding grooves (9), a spring (11) is fixedly arranged at one end of the inner rod (7) positioned in the outer barrel (8), an end cover (12, and end cover (12) inside rigid coupling spring (11), the other end of urceolus (8) is fixed and is equipped with spacing ring (13), the internal diameter of spacing ring (13) is greater than the diameter and the less than or equal to of interior pole (7) the internal diameter of urceolus (8), interior pole (7) are located the position in urceolus (8) outside is equipped with stopper (14), buffer (4) is under quiescent condition, stopper (14) with spacing ring (13) contact, just spring (11) are in tensile state, crossbeam (3) are articulated interior pole (7), end cover (12) are articulated second hinge seat (6).

2. The semitrailer protection bumper according to claim 1, characterized in that: in the static state of the buffer device (4), the distance between the sliding block (10) and the limiting ring (13) is less than or equal to the maximum stretching length of the spring (11).

3. The semitrailer protection bumper according to claim 1, characterized in that: the cross beam (3) is a hollow round tube.

4. The semitrailer protection bumper according to claim 3, characterized in that: the two ends of the cross beam (3) are arc-shaped and are tilted upwards.

5. The semitrailer protection bumper according to claim 4, characterized in that: the upright posts (2) and the cross beams (3) are made of aluminum alloy materials.