CN109131573B

CN109131573B - Van-type semitrailer

Info

Publication number: CN109131573B
Application number: CN201811088334.3A
Authority: CN
Inventors: 张成泽
Original assignee: Shijiazhuang Jinfeng Special Vehicle Co Ltd
Current assignee: Shijiazhuang Jinfeng Special Vehicle Co Ltd
Priority date: 2018-09-18
Filing date: 2018-09-18
Publication date: 2020-02-21
Anticipated expiration: 2038-09-18
Also published as: CN109131573A

Abstract

The invention relates to the technical field of transportation equipment, in particular to a van semi-trailer, which comprises a first frame, supporting legs fixed at the bottom of the first frame, a second frame matched with the first frame and arranged in a sliding manner, a first van body matched with the first frame, a second van body matched with the second frame and arranged in a sliding manner, and a wheel set matched with the second frame; a foldable anti-collision device is arranged on the inner side of the first carriage body; one end of the anti-collision device is fixedly connected with the first carriage body, and the other end of the anti-collision device is fixedly connected with the second carriage body; the length of the van semi-trailer body is adjusted by the first frame and the second frame which are arranged in a sliding and adaptive manner, different cargo transportation amounts can be met in an adaptive manner, the resource utilization rate is improved, and the transportation cost is reduced; and the carriage body is internally provided with a foldable anti-collision device, so that the goods are always in a stable state in the transportation process, and the transportation quality of the goods is ensured.

Description

Van-type semitrailer

Technical Field

The invention relates to the technical field of transportation equipment, in particular to a van-type semitrailer.

Background

The van-type transportation semi-trailer is formed by refitting or manufacturing the van-type transportation semi-trailer on a chassis of a van-type automobile, and has the advantages of strong bearing capacity, high safety factor, reasonable design, firmness and durability. The van-type transportation semitrailer adopts closed side protection design, compares in the design of storehouse bars formula, and horizontal risk when can effectively reducing the vehicle and go at a high speed reduces the energy consumption, and back protection design has reasonable shallow annex, makes things convenient for the operation. According to the difference of the carriage, the carriage can be divided into a passenger carriage type and a carriage type. The carriage and the cab are of a split structure, and the specific structural form of the carriage is different according to the function of the carriage. For example, the top cover of the movable roof type carriage can be vertically lifted to change the volume of the carriage and meet the loading and unloading requirements of different goods; the wing-open type carriage is convenient for loading and unloading goods, and the loading and unloading efficiency is improved. The van semi-trailer series products are suitable for transporting household appliances, light textile goods, building materials such as coal, sand and stone and the like and picture tray goods.

The frame of the van-type transportation semi-trailer is of a through beam type structure, the longitudinal beam is of a straight type or a gooseneck type, and the cross beam penetrates into the longitudinal beam and is welded into a whole. The compartment body adopts a high-strength cold rolled corrugated steel plate, has no framework structure, and has the characteristics of multi-pull, heavy load and light dead weight. However, most of the van-type semi-trailers on the market are integrally formed or structures for fixing the van-type cargo capacity, and the cargo capacity cannot be flexibly adjusted when cargoes of different sizes and different transport volumes are transported. For example, if the amount of the goods to be transported is small, the space in the carriage is excessive, which causes waste of transportation resources; the semitrailer has the disadvantages of long body length, large turning radius and low controllability, so that the transportation safety is low; in addition, the space in the carriage is excessive, so that the transported goods can shake unstably during transportation, or the goods slightly collide or shift with each other to influence the transportation quality of the goods. If the amount of goods required to be transported is large, the semi-trailers with corresponding amount need to be added to meet the transportation requirement of all goods, and the transportation cost is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a van semi-trailer, which realizes the adjustment of the length of the body of the van semi-trailer by sliding and matching a first frame and a second frame, can match and meet different cargo transportation amounts, improves the resource utilization rate and reduces the transportation cost; and the carriage body is internally provided with a foldable anti-collision device, so that the goods are always in a stable state in the transportation process, and the transportation quality of the goods is ensured.

The purpose of the invention is realized by the following technical scheme:

a van-type semi-trailer comprises a first frame, supporting legs fixed at the bottom of the first frame, a second frame matched with the first frame and arranged in a sliding manner, a first carriage body matched with the first frame, a second carriage body matched with the second frame and arranged and a wheel set matched with the second frame; a foldable anti-collision device is arranged on the inner side of the first carriage body; one end of the anti-collision device is fixedly connected with the first carriage body, and the other end of the anti-collision device is fixedly connected with the second carriage body.

Through adopting above-mentioned technical scheme, the second frame slides to the internal adaptation of first frame, drives the second railway carriage or compartment body and is close to or keeps away from to the internal first railway carriage or compartment, has realized the regulation of the internal portion's of semitrailer railway carriage or compartment load. If the required cargo capacity is smaller than the cargo capacity of the first carriage body, the second frame and the second carriage body are retracted into the first carriage body to the maximum extent, so that the problem of safety caused by reduction of controllability in the transportation process due to excess length of the carriage body is avoided. If the cargo quantity to be transported is larger than the cargo capacity of the first carriage body, the second frame and the second carriage body extend out of the first carriage body to a proper position, so that different cargo transportation requirements can be met by one semitrailer, the resource utilization rate is improved, and the transportation cost is reduced. In addition, after the second carriage body is inserted into the first carriage body, a fall exists between the side walls of the second carriage body and the first carriage body, the second carriage body is arranged inside, and the first carriage body is arranged outside; if the goods just span the junction of two railway carriage or compartment bodies, then can make the goods and lean on outer there is the space between the lateral wall of first railway carriage or compartment body promptly to in the transportation, this goods can be in all the time and rock unstable state, and the adjacent goods is influenced in serious still collision, thereby reduces freight quality. According to the invention, the surface of the foldable anti-collision device is flush with the inner side surface of the second carriage body, so that the goods are always in stable blocking and protecting support, and the transportation quality of the goods is ensured.

Preferably, the anti-collision device comprises a plurality of anti-collision vertical beams and a telescopic net rack; the flexible net rack is hinged to one side of the anti-collision vertical beam, and the adjacent anti-collision vertical beams are connected together.

Through adopting above-mentioned technical scheme, the anticollision is erected the roof beam and is played the effect that the inside goods were protected to the supporting fender, and flexible rack erects the roof beam with a plurality of anticollision and connects as an organic whole, has realized buffer stop's scalable function.

Preferably, the first carriage comprises a first front panel, a first side panel and a first top panel; the first side plate is fixedly arranged at two sides of the first front plate; the first top plate is fixedly arranged at the top ends of the first front plate and the first side plate; the roof beam slip setting is erected at first curb plate inboardly in the anticollision, flexible rack is located the anticollision and erects between roof beam and the first curb plate.

Preferably, the second carriage body comprises two second side plates, a second rear plate positioned at the rear end of the second side plates, and a second top plate positioned at the top ends of the second side plates and the second rear plate; the second side plate is positioned at the inner side of the first side plate and is close to or far away from the first front plate along with the sliding of the second frame relative to the first frame; the anti-collision vertical beam adjacent to the first front plate is fixedly arranged on the first front plate, and the anti-collision vertical beam adjacent to the second side plate is fixedly arranged on the second side plate.

Through adopting above-mentioned technical scheme, stretch into or pull out the in-process at the relative first curb plate of second curb plate, buffer stop slides along with it. The method specifically comprises the following steps: the anti-collision vertical beam adjacent to the first side plate is fixed, the anti-collision vertical beam adjacent to the second side plate moves along with the second side plate, and when the second carriage body extends into the first carriage body, the second side plate compresses the anti-collision device forwards, the telescopic net rack compresses, and the anti-collision vertical beam is pushed to move forwards; when the second carriage body stretches out to the outside of the first carriage body, the second side plate stretches the anti-collision device backwards, the telescopic net frame is opened, and the anti-collision vertical beam is pushed to move backwards. The flexible rack is located the anticollision and erects between roof beam and the first curb plate, when connecting adjacent anticollision and erects the roof beam, still plays the effect of consolidating railway carriage or compartment body curb plate.

Preferably, the side of the anti-collision vertical beam far away from the telescopic net rack is flush with the inner surface of the second side plate.

Through adopting above-mentioned technical scheme, no matter the second curb plate is guaranteed to move to where, the internal surface of second curb plate all the time with the surperficial parallel and level of anticollision vertical beam, guarantee that the internal portion of railway carriage or compartment's goods is supported the protection by the parallel and level face all the time, the effectual unstable problem of rocking in having avoided the freight has guaranteed the transportation quality of goods.

Preferably, the first frame comprises two first side frames, a plurality of first main beams and first cross beams; the first cross beam is fixedly connected with the two first side frames and is positioned at the front ends of the two first side frames; the first main beams are distributed between the two first side frames at intervals.

Through adopting above-mentioned technical scheme, first framework simple structure replaces steel sheet or the metal bottom plate of traditional van semi-trailer for a plurality of girder supports, and the cooperation crossbeam supports and connects the girder, and the side bearer protection supports the automobile body, when satisfying the transportation requirement, has realized the lightweight of automobile body, has reduced the transportation energy consumption to the cost of transportation has been reduced.

Preferably, a first sliding groove is integrally formed in the bottom surface of the first top plate, and a second sliding groove is integrally formed in the bottom of the first side frame; the top end and the bottom end of the anti-collision vertical beam are respectively matched and slidably arranged in the first sliding groove and the second sliding groove, so that the anti-collision device is folded and unfolded.

Through adopting above-mentioned technical scheme, the upper and lower extreme of anticollision vertical beam slides in first spout and second spout respectively, has realized buffer stop's compression and opening.

Preferably, the second frame comprises two second side frames, a plurality of second main beams and a plurality of second cross beams; the second cross beams are fixedly connected with the two second side frames and are positioned at the rear ends of the two second side frames; the second main beams are distributed between the two second side frames at intervals; the wheel set is located below the second cross beam.

Through adopting above-mentioned technical scheme, second frame simple structure, the requirement of different goods freight volumes can be satisfied in the cooperation of first frame.

Preferably, a third sliding groove is formed in the inner side of the first side frame, and a third sliding block is arranged on the outer side of the second side frame; fourth sliding grooves are formed in the two sides of the first main beam, and fourth sliding blocks are arranged on the two sides of the second main beam; the third sliding block slides in the third sliding groove in a matching manner, and the fourth sliding block slides in the fourth sliding groove in a matching manner, so that the second frame and the first frame slide in a matching manner; the first main beam and the second main beam are arranged alternately.

Through adopting above-mentioned technical scheme, third spout and third slider match the setting, have realized the slip setting between first frame and the second frame, make the second railway carriage or compartment body can stretch out or withdraw to first railway carriage or compartment internally. The fourth sliding groove is matched with the fourth sliding block, so that the first frame and the second frame slide relatively, and meanwhile, the stability of the sliding process is guaranteed. The first main beam and the second main beam are arranged at intervals and spliced together to form a complete bottom plate, so that the supporting strength can be further increased; the two are separated and can still be normally supported. The light weight of the vehicle body is realized and the transportation energy consumption and cost are reduced while the transportation requirements are met.

Preferably, the first side frames are provided with first limiting pin holes at intervals, the second side frames are provided with second limiting pin holes at intervals, and the first limiting pin holes and the second limiting pin holes are matched in pairs.

Through adopting above-mentioned technical scheme, realize that the second frame stretches out or withdraws the back in to first frame, with both spacing fixed to the assembly forms a holistic stable in structure's semitrailer.

In conclusion, the invention has the following beneficial effects:

(1) the first frame and the second frame which are arranged in a sliding and adaptive mode drive the second compartment body to extend into or slide out of the first compartment body, so that the cargo carrying length and the cargo carrying capacity of the van-type semitrailer can be adjusted, different cargo carrying amounts can be met in an adaptive mode, the trouble of frequently replacing the semitrailer is overcome, the resource utilization rate is improved, and the transportation cost is reduced;

(2) the surface of the foldable anti-collision device is flush with the surface of the second side plate, so that the goods are always in stable blocking and protecting support, the problem that the goods shake unstably due to uneven protecting surfaces at the connecting part of the first side plate and the second side plate in the transportation process is avoided, and the transportation quality of the goods is ensured;

(3) the free ends of the anti-collision vertical beams are fixedly connected to the second side plate, so that the anti-collision vertical beams can move along with the movement of the second side plate, the anti-collision vertical beams are ensured to be matched with the second side plate, the goods are supported and protected by the parallel and level surfaces all the time, and the problem of unstable shaking in goods transportation is effectively avoided;

(4) the first frame and the second frame are simple in structure, and the light weight of the van-type semitrailer is realized; and the two are arranged at intervals and matched to form a complete bottom plate, so that the bearing capacity is strong.

Drawings

FIG. 1 is a schematic rear view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic structural view of a bump guard;

FIG. 4 is an enlarged view of part A of FIG. 3;

FIG. 5 is a schematic view of an assembled structure of the first frame and the second frame;

fig. 6 is a schematic view of the structure of the interior of the vehicle body.

Reference numerals: 1. a first carriage; 11. a first front plate; 12. a first side plate; 13. a first top plate; 2. a second carriage; 21. a second side plate; 22. a second back plate; 23. a second top plate; 3. a first frame; 31. a first side frame; 32. a first main beam; 33. a first cross member; 4. a second frame; 41. a second side frame; 42. a second main beam; 43. a second cross member; 5. a wheel set; 6. supporting legs; 7. an anti-collision vertical beam; 8. a telescopic net frame; 9. a first limit pin hole; 10. a second limit pin hole; 15. a first chute; 16. a second chute; 17. a third chute; 18. a third slider; 19. a fourth chute; 20. and a fourth slider.

Detailed Description

A van semi-trailer is shown in figures 1 and 2 and comprises a first carriage body 1, a second carriage body 2, a first frame 3, a second frame 4, a wheel set 5 and supporting legs 6. Fig. 1 shows a state in which the first car 1 and the second car are nested together, and fig. 2 shows a state in which the second car 2 extends out of the first car 1 by the longest length. The first carriage body 1 is close to one end of the traction end of the vehicle body, the first carriage body 1 is fixed and matched with the first frame 3, and the second carriage body 2 is fixed and matched with the second frame 4. The wheel set 5 is mounted at the bottom of the second frame 3, and the support foot 6 is mounted at the bottom of the first frame 3. The first carriage 1 includes a first front plate 11, a first side plate 12 and a first top plate 13, the first side plate 12 is fixedly disposed on two sides of the first front plate 11, and the first top plate 13 is fixedly disposed on top ends of the first front plate 11 and the first side plate 12. The second carriage body 2 comprises two second side plates 21, a second rear plate 22 located at the rear end of the second side plates 21 and a second top plate 23 located at the top ends of the second side plates 21 and the second rear plate 22, the second side plates 21 are located on the inner side of the first side plates 12, and the second top plate 23 is located below the first top plate 13, namely, the whole first carriage body 1 and the second carriage body 2 are sleeved to form a complete van-type semi-trailer.

As shown in fig. 3, the inside of the first side plate 12 is slidably provided with a plurality of anti-collision vertical beams 7, a telescopic net rack 8 is hinged between the adjacent anti-collision vertical beams 7, the telescopic net rack 8 is located on one side (namely, the outside) of the anti-collision vertical beam 7, which is close to the first side plate 12, and the plurality of anti-collision vertical beams 7 are connected together through the telescopic net rack 8. The vertical impact beam 7 closest to the first front panel 11 is fixedly mounted on the first front panel 11, and the vertical impact beam 7 closest to the second side panel 21 is fixedly mounted on the second side panel 21. And the inner surfaces of all the impact vertical beams 7 are kept flush with the inner surface of the second side panel 21. As shown in fig. 4, a first sliding groove 15 is integrally formed on the bottom surface of the first top plate 13, and the top end of the anti-collision vertical beam 7 is slidably disposed in the first sliding groove 15 in a matching manner.

As shown in fig. 5, the first frame 3 includes two first side frames 31, a plurality of first main beams 32, and first cross beams 33. The first cross member 31 is located at the foremost end of the two first side frames 31 and fixedly connects the two first side frames 31. The first main beam 32 is perpendicular to the first cross beam 33 and is spaced between the two first side frames 31. The second frame 4 includes two second side frames 41, a plurality of second main beams 42 and a plurality of second cross beams 43; the second cross beams 43 are fixedly connected with the two second side frames 41 and are positioned at the rear ends of the two second side frames 41; the second main beam 42 is vertical to the second side frame 41 and is distributed between the two second side frames 41 at intervals; the wheel set 5 is located below the second cross member 43 so as not to interfere with the sliding of the front end of the second frame 4 into the first frame 3. The first main beam 32 and the second main beam 42 are arranged at intervals. The first side frame 31 is provided with first limit pin holes 9 at intervals, the second side frame 41 is provided with second limit pin holes 10 at intervals, and the first limit pin holes 9 and the second limit pin holes 10 are matched in pairs to realize the limit fixation of the first frame 3 and the second frame 4.

As shown in fig. 5 and 6, the bottom of the first side frame 31 is integrally provided with a second sliding groove 16, the bottom end of the vertical anti-collision beam 7 is slidably arranged in the second sliding groove 16, and the top end of the vertical anti-collision beam 7 is slidably arranged in the first sliding groove 15, so that the vertical anti-collision beam 7 can be folded and unfolded. The inner side of the first side frame 31 is provided with a third sliding chute 17, and the outer side of the second side frame 41 is provided with a third sliding block 18. Fourth chutes 19 are formed in two sides of the first main beam 32, and fourth sliders 20 are arranged on two sides of the second main beam 42. The third slide block 18 is matched and slides in the third slide groove 17, and the fourth slide block 20 is matched and slides in the fourth slide groove 19, so that the second frame 4 and the first frame 3 are matched and slide. Second runner 16 is located at the bottom of first side frame 31, and third runner 17 is located above second runner 16, so that second side frame 41 cannot be prevented from sliding in third runner 17.

As shown in fig. 6, in order to further ensure the smoothness of the relative sliding process between the first frame 3 and the second frame 4, a third sliding block 18 is also arranged on the inner side of the second side frame 41, and the third sliding block 18 is matched and slidably arranged in the fourth sliding groove 19 adjacent to the third sliding block 18.

The invention relates to a van semi-trailer, which has the following regulation processes and principles of the length of a vehicle body and the cargo capacity:

calculating to obtain the due cargo capacity in the compartment according to the cargo quantity required to be transported; the length of the second compartment 2 extending or extending relative to the first compartment 1 is calculated according to the cargo capacity, and the extending process is similar to that described below by taking the example that the second compartment 2 needs to extend into the first compartment 1.

The supporting feet 6 are fixedly supported on the ground, so that the first carriage body 1 and the first vehicle frame 3 are fixed; thrust is applied to the second compartment 2, specifically, thrust is applied to the second rear plate 22, so that the third slider 18 and the fourth slider 20 respectively slide in the third sliding groove 17 and the fourth sliding groove 19 in a matching manner, and the second frame 4 extends into the first frame 3, and simultaneously, the second compartment 2 is driven to extend into the first compartment 1. The second side plate 21 and the second top plate 23 are respectively located inside the first side plate 12 and the first top plate 13, that is, the second compartment 2 is sleeved inside the first compartment 1. At the gliding in-process of second curb plate 21 to first curb plate 12, the anticollision that is connected with second curb plate 21 erects roof beam 7 and also removes thereupon, and flexible rack 8 is constantly compressed folding simultaneously, realizes that each anticollision erects roof beam 7 to constantly being close to of first front bezel 11. When the second car body 2 moves to a set position, the second rear plate 22 stops being pushed, and the limit pin is inserted into the first limit pin hole 9 and the second limit pin hole 10 for fixing, so that the first car body 1 and the first frame 3 are fixedly connected with the second car body 2 and the second frame 4.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A van-type semitrailer is characterized in that: the device comprises a first frame (3), a supporting leg (6) fixed at the bottom of the first frame (3), a second frame (4) matched with the first frame (3) and arranged in a sliding manner, a first carriage body (1) matched with the first frame (3), a second carriage body (2) matched with the second frame (4) and a wheel set (5) matched with the second frame (4); a foldable anti-collision device is arranged on the inner side of the first carriage body (1); one end of the anti-collision device is fixedly connected with the first carriage body (1), and the other end of the anti-collision device is fixedly connected with the second carriage body (2); the anti-collision device comprises a plurality of anti-collision vertical beams (7) and a telescopic net rack (8); the telescopic net rack (8) is hinged to one side of the anti-collision vertical beam (7) to connect the adjacent anti-collision vertical beams (7) together; the inner surface of the anti-collision vertical beam (7) is flush with the inner side surface of the second carriage body (2).

2. The van-type semitrailer of claim 1, wherein: the first carriage body (1) comprises a first front plate (11), a first side plate (12) and a first top plate (13); the first side plate (12) is fixedly arranged at two sides of the first front plate (11); the first top plate (13) is fixedly arranged at the top ends of the first front plate (11) and the first side plate (12); the anti-collision vertical beam (7) is arranged on the inner side of the first side plate (12) in a sliding mode, and the telescopic net rack (8) is located between the anti-collision vertical beam (7) and the first side plate (12).

3. The van-type semitrailer of claim 2, wherein: the second carriage body (2) comprises two second side plates (21), a second rear plate (22) positioned at the rear ends of the second side plates (21) and a second top plate (23) positioned at the top ends of the second side plates (21) and the second rear plate (22); the second side plate (21) is positioned on the inner side of the first side plate (12) and is close to or far away from the first front plate (11) along with the sliding of the second frame (4) relative to the first frame (3); the anti-collision vertical beam (7) adjacent to the first front plate (11) is fixedly arranged on the first front plate (11), and the anti-collision vertical beam (7) adjacent to the second side plate (21) is fixedly arranged on the second side plate (21).

4. A van semi-trailer according to claim 3, characterised in that: the side face, far away from the telescopic net rack (8), of the anti-collision vertical beam (7) is flush with the inner surface of the second side plate (21).

5. The van-type semitrailer of claim 2, wherein: the first frame (3) comprises two first side frames (31), a plurality of first main beams (32) and first cross beams (33); the first cross beam (33) is fixedly connected with the two first side frames (31) and is positioned at the front ends of the two first side frames (31); the first main beams (32) are distributed between the two first side frames (31) at intervals.

6. The van-type semitrailer of claim 5, wherein: a first sliding groove (15) is integrally formed in the bottom surface of the first top plate (13), and a second sliding groove (16) is integrally formed in the bottom of the first side frame (31); the top end and the lower end of the anti-collision vertical beam (7) are respectively matched and slidably arranged in the first sliding groove (15) and the second sliding groove (16), so that the anti-collision device is folded and unfolded.

7. The van-type semitrailer of claim 5, wherein: the second frame (4) comprises two second side frames (41), a plurality of second main beams (42) and a plurality of second cross beams (43); the second cross beams (43) are fixedly connected with the two second side frames (41) and are positioned at the rear ends of the two second side frames (41); the second main beams (42) are distributed between the two second side frames (41) at intervals; the wheel set (5) is located below the second cross beam (43).

8. The van-type semitrailer of claim 7, wherein: a third sliding groove (17) is formed in the inner side of the first side frame (31), and a third sliding block (18) is arranged on the outer side of the second side frame (41); fourth sliding grooves (19) are formed in the two sides of the first main beam (32), and fourth sliding blocks (20) are arranged on the two sides of the second main beam (42); the third sliding block (18) slides in the third sliding groove (17) in a matching manner, and the fourth sliding block (20) slides in the fourth sliding groove (19) in a matching manner, so that the second frame (4) and the first frame (3) slide in a matching manner; the first main beam (32) and the second main beam (42) are arranged at intervals.

9. The van-type semitrailer of claim 8, wherein: first limiting pin holes (9) are formed in the first side frame (31) at intervals, second limiting pin holes (10) are formed in the second side frame (41) at intervals, and the first limiting pin holes (9) and the second limiting pin holes (10) are matched in pairs.