CN207450028U - The semitrailer device that can be widened based on loading end - Google Patents
The semitrailer device that can be widened based on loading end Download PDFInfo
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- CN207450028U CN207450028U CN201720750213.5U CN201720750213U CN207450028U CN 207450028 U CN207450028 U CN 207450028U CN 201720750213 U CN201720750213 U CN 201720750213U CN 207450028 U CN207450028 U CN 207450028U
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Abstract
A kind of semitrailer device that can be widened based on loading end, is included with main car frame（1）Semitrailer device body, be arranged on main car frame（1）Side surface part and be arranged to and main car frame（1）The side vehicle frame of drawing and pulling type connection（2）, be arranged on side vehicle frame（2）With main car frame（1）Between telescoping cylinder（3）, pass through telescoping cylinder（3）Side vehicle frame（2）With the main car frame of semitrailer device body（1）It is converted into row position, realizes the adjusting of the width of semitrailer device body, no longer only use the main car frame of semitrailer device body（1）, therefore meet the transport needs to ultra-wide cargo.
Description
First, technical field
The utility model is related to a kind of semitrailer device, especially a kind of semitrailer device that can be widened based on loading end.
2nd, background technology
Semitrailer is that axle is placed in behind vehicle's center of gravity, and equipped with the connection that horizontal and vertical power can be transferred to tractor
Tie the trailer of device.Semitrailer is usually three axis semitrailers, and species is divided into 11 rice barn column semitrailers, and 13 rice barn columns are low
A lot of species such as flat bed trailer.It is a kind of transport vehicle for the heavy type being connected by towing pin with semi-mounted headstock, because
This semitrailer device is a kind of important transit equipment, in existing semitrailer device, such as generating set, engineering machinery,
The various large sizes of military hardware etc., ultra-wide, the transport for the cargo that can not be split are more and more extensive, and this ultra-wide cargo generally passes through
Low flat bed semi trailer transports, and the width of standard low flat bed semi trailer is 3 meters, it is difficult to meet transport requirement, on the other hand, such as
The low flat bed semi trailer of fruit supper wide type cannot return to normal width in unloaded or transport not ultra-wide cargo, in road operation
Can be subject to many limitations, can extreme influence semitrailer transport efficiency, currently not yet it is a kind of can be widened based on loading end half
Trailer arrangement meets the transport needs to ultra-wide cargo.
Based on it is existing the technical issues of, technical characteristic and technique effect, make the application technical solution of the utility model.
3rd, the content of the invention
The object of the utility model is a kind of semitrailer device that can be widened based on loading end.
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of semi-mounted that can widen based on loading end
Vehicle device, therefore meet the transport needs to ultra-wide cargo.
In order to achieve the above objectives, the technical scheme adopted by the utility model is that：Include the semitrailer dress with main car frame
Body is put, be arranged on the side surface part of main car frame and is arranged to the side vehicle frame coupled with main car frame drawing and pulling type, is arranged on side vehicle frame
Telescoping cylinder between main car frame.
Due to devising side vehicle frame, telescoping cylinder and semitrailer device body, side vehicle frame and semitrailer are filled by telescoping cylinder
The main car frame for putting body is converted into row position, realizes the adjusting of the width of semitrailer device body, no longer only uses semitrailer dress
The main car frame of body is put, therefore meets the transport needs to ultra-wide cargo.
The utility model devises, side vehicle frame and telescoping cylinder and semitrailer in the way of extension width is carried out to side
Device body is coupled to each other.
The utility model devises, and also includes axis pin, and semitrailer device body is arranged to also include trailer suspension system
System, support device and cab apron,
The side surface part of the forward end of main car frame is provided with support device and is set in the lower end surface portion of main car frame
There is trailer suspension, the side surface part of main car frame is provided with side vehicle frame and side vehicle frame is arranged to join with main car frame plug-in type
It connects, telescoping cylinder is provided between side vehicle frame and main car frame and side vehicle frame is arranged to fixed by axis pin and main car frame
It connects, in side, the rear end end face portion of vehicle frame is provided with cab apron.
The utility model devises, and main car frame is arranged to low flat bed semi trailer formula vehicle frame and main car frame is arranged to include
Main longitudinal grider and intermediate pull crossbeam, main longitudinal grider is arranged to the I-shaped beam-like body of gooseneck type and two main longitudinal griders are arranged to corresponding
Parallel distribution, intermediate pull crossbeam is arranged to box beam-like body and intermediate pull crossbeam is arranged to run through between main longitudinal grider,
Intermediate pull crossbeam is arranged to couple with side vehicle frame plug-in type.
The utility model devises, and the port part of intermediate pull crossbeam is arranged to be distributed in open mode and ten centres
Pull crossbeam is arranged to the center line compartment distribution along main longitudinal grider.
The utility model devises, and side vehicle frame is arranged to steck formula rack-like body and side vehicle frame is arranged to include pull horizontal stroke
Beam and bearing panel, bearing panel is arranged on the upper end end face of pull crossbeam and pull crossbeam is arranged to and main car frame plug-in type
Connection.
The utility model devises, and pull crossbeam is arranged to column and pull crossbeam is arranged to be plugged on intermediate pull
In crossbeam, in the side surface part of intermediate pull crossbeam and the side surface part of pull crossbeam is respectively arranged with pin hole and axis pin is arranged on
In the pin hole of intermediate pull crossbeam and the pin hole of pull crossbeam, the pin hole of intermediate pull crossbeam is arranged to along intermediate pull
The center line arranged distribution of crossbeam and the pin hole of pull crossbeam are arranged to the center line arranged distribution along pull crossbeam, pull
Crossbeam is arranged to intermediate pull crossbeam according to one-to-one corresponding arranged distribution.
The utility model devises, and telescoping cylinder is arranged to one end end set of two section telescoping cylinders and telescoping cylinder to pass through
Bearing couples with intermediate pull crossbeam, the other end end set of telescoping cylinder is to be coupled by bearing with pull crossbeam, telescoping cylinder
After being arranged in preceding in the way of distribution respectively between intermediate pull crossbeam and pull crossbeam.
The utility model devises, and trailer suspension is arranged to leaf spring equalizing type of suspension.
The utility model devises, and support device is arranged to telescopic outrigger.
The utility model devises, and cab apron is arranged to spring assist cab apron.
The utility model devises, and main car frame is arranged to side vehicle frame, telescoping cylinder and axis pin in the way of extending by side
It is distributed and main car frame and side vehicle frame is arranged to trailer suspension, support device and cab apron according to semitrailer connection mode point
Cloth, the center line of main car frame and the center line of side vehicle frame are arranged to be distributed in the way of being mutually parallel.
The utility model has technical effect that：Semitrailer can design different bearer ability according to the difference of mass carried
Pull car body, select the assemblies such as axle, suspension, the tire of different bearer ability or quantity.Semitrailer pull car body is divided into two
Part is made of the fixed frame assembly in centre and movable bearing surface plate.Using the frame structure of longeron crossbeam connection.Withdrawing part
Divide using box box set structure, according to the difference of pull width, corresponding locking structure is set to carry out locking.Movable bearing surface pair
The flexible realization of hydraulic cylinder is moved through, the power of hydraulic system can also pass through semi-mounted by tractor speed changer power taking
The power taking of vehicle power unit connects power unit, it is necessary to during transporting over-wide cargo, operates hydraulic system operating-controlling mechanism, drives both sides
Hydraulic cylinder stretches, and movable bearing surface plate is driven to be displaced outwardly, widens semitrailer car body loading end, when being stretched to corresponding length
When, locking is carried out by locking structure, fixed vehicle frame is the main body of semitrailer carrying, the frame structure connected using longeron crossbeam,
Two main longitudinal griders are gooseneck type I-shaped structure, and intermediate pull crossbeam is box, and one shares ten from loading end front end to rear end,
It extends through in two longitudinal-beam web plates, is welded into one with longeron, intermediate pull crossbeam outer end is opening-like, convenient for movable bearing surface
Plate crossbeam is inserted in the inside, and movable bearing surface plate is that semitrailer loading end can widen mobile loading end to both sides, has one per side
Group using steck formula structure, is made of unilateral pull crossbeam and one side bearing panel.Unilateral pull crossbeam is box, and one is shared
It is ten, corresponding with the intermediate pull crossbeam of fixed vehicle frame, and can be inserted into intermediate pull crossbeam, form box box set.
In this example, per side movable bearing surface plate be divided into before in after three sections, every section of drop front respectively by a group oil cylinder promote, realize
Movable bearing surface plate is moved along pull crossbeam, per side drop front maximum can protruding 200mm, semitrailer loading end is most
400mm can be widened greatly, the width of semitrailer can be widened to 3400mm by normal width 3000mm, and what semitrailer loading end was widened holds
Row mechanism is made of power unit, operating-controlling mechanism, hydraulic cylinder, lockable mechanism.Power unit uses automatically controlled side in this example
Formula, can be used loaded power or tractor power supply, and operating-controlling mechanism can control the flexible of each hydraulic cylinder, hydraulic cylinder root respectively
Need to be designed as three groups according to every three sections of movable bearing surface plates in side, both ends respectively with intermediate pull crossbeam and two side-pulling crossbeam phases
Even, under power drive, stretch per group oil cylinder and realize that corresponding movable bearing surface plate is moved along pull crossbeam, locking machine
Structure uses bayonet fashion, sets that there are two spacing as the pin hole of 100mm in intermediate pull crossbeam and unilateral pull crossbeam, can realize
Effective locking of outside pull two different in width of 100mm and 200mm when transporting over-wide cargo semitrailer needs to widen, disengages
Per the lockable mechanism of side movable bearing surface plate, hydraulic control button is manipulated, corresponding position will be reached per side cylinder respectively, then use
Lockable mechanism locks pull crossbeam, and it is convenient and efficient entirely to widen process, is can be completed no more than 1 minute, it can be achieved that semitrailer
Loading end is widened, and has effectively adapted to the transport needs of various ultra-wide cargos, and a vehicle is mostly used, and has expanded the transportation function of semitrailer,
The adjustment of semitrailer loading end width can be achieved, make semitrailer can be according to the corresponding width of width adjustment of cargo, it can be achieved that half
Effective locking of trailer different bearer face width ensures the safety of semitrailer transport cargo.
In the technical program, side vehicle frame, telescoping cylinder and semitrailer device body that extension width is carried out to side are attached most importance to
Technical characteristic is wanted, in the technical field for the semitrailer device that can widen based on loading end, there is novelty, creativeness and practicality
Property, the term in the technical program is all that can be explained and understood with patent document in the art.
4th, illustrate
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the schematic diagram of the present invention：
Fig. 2 is the top view of Fig. 1：
Fig. 3 is the main car frame 1 of the present invention, 4 connection relationship diagram of side vehicle frame 2, telescoping cylinder 3 and axis pin.
5th, specific embodiment
According to guidelines for examination, to such as " having ", "comprising" and " comprising " term should used in the utility model
It is interpreted as the presence or addition for not allotting one or more of the other element or its combination.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Fig. 1 is one embodiment of the utility model, illustrates the present embodiment with reference to attached drawing, includes main car frame 1, side
Vehicle frame 2, telescoping cylinder 3, axis pin 4, trailer suspension 5, support device 6 and cab apron 8,
The side surface part of the forward end of main car frame 1 is provided with support device 6 and is set in the lower end surface portion of main car frame 1
Trailer suspension 5 is equipped with, the side surface part of main car frame 1 is provided with side vehicle frame 2 and side vehicle frame 2 is arranged to insert with main car frame 1
Formula connection is connect, telescoping cylinder 3 is provided between side vehicle frame 2 and main car frame 1 and side vehicle frame 2 is arranged to through axis pin 4 and main vehicle
1 fixed connection of frame, in side, the rear end end face portion of vehicle frame 2 is provided with cab apron 8.
In the present embodiment, main car frame 1 is arranged to low flat bed semi trailer formula vehicle frame and main car frame 1 is arranged to include master
Longeron 11 and intermediate pull crossbeam 12, main longitudinal grider 11 is arranged to the I-shaped beam-like body of gooseneck type and two main longitudinal griders 11 are arranged to
Corresponding parallel distribution, intermediate pull crossbeam 12 is arranged to box beam-like body and intermediate pull crossbeam 12 is arranged to run through in master
Between longeron 11, intermediate pull crossbeam 12 is arranged to couple with 2 plug-in type of side vehicle frame.
In the present embodiment, the port part of intermediate pull crossbeam 12 is arranged to be distributed in open mode and take out among ten
Crossbeam 12 is drawn to be arranged to the center line compartment distribution along main longitudinal grider 11.
In the present embodiment, side vehicle frame 2 is arranged to steck formula rack-like body and side vehicle frame 2 is arranged to include pull crossbeam
21 and bearing panel 22, bearing panel 22 is arranged on the upper end end face of pull crossbeam 21 and pull crossbeam 21 is arranged to and main vehicle
1 plug-in type of frame couples.
In the present embodiment, pull crossbeam 21 is arranged to column and pull crossbeam 21 is arranged to be plugged on intermediate pull
In crossbeam 12, pin hole and axis pin are respectively arranged in the side surface part of intermediate pull crossbeam 12 and the side surface part of pull crossbeam 21
4 are arranged in the pin hole of the pin hole of intermediate pull crossbeam 12 and pull crossbeam 21, and the pin hole of intermediate pull crossbeam 12 is set
It is set to along the center line arranged distribution of intermediate pull crossbeam 12 and the pin hole of pull crossbeam 21 and is arranged to along pull crossbeam 21
Center line arranged distribution, pull crossbeam 21 is arranged to intermediate pull crossbeam 12 according to corresponding arranged distribution.
In the present embodiment, telescoping cylinder 3 is arranged to one end end set of two section telescoping cylinders and telescoping cylinder 3 to pass through branch
Seat couples with intermediate pull crossbeam 12, the other end end set of telescoping cylinder 3 is to be coupled by bearing with pull crossbeam 21, stretches
After cylinder 3 is arranged in preceding in the way of distribution respectively between intermediate pull crossbeam 12 and pull crossbeam 21.
In the present embodiment, trailer suspension 5 is arranged to leaf spring equalizing type of suspension.
In the present embodiment, support device 6 is arranged to telescopic outrigger.
In the present embodiment, cab apron 8 is arranged to spring assist cab apron.
In the present embodiment, main car frame 1 is arranged to side vehicle frame 2, telescoping cylinder 3 and axis pin 4 in the way of extending by side
It is distributed and main car frame 1 and side vehicle frame 2 is arranged to be connected according to semitrailer with trailer suspension 5, support device 6 and cab apron 8
Mode is distributed, and the center line of main car frame 1 and the center line of side vehicle frame 2 are arranged to be distributed in the way of being mutually parallel.
By telescoping cylinder 3, make between the pull crossbeam 21 of side vehicle frame 2 and the intermediate pull crossbeam 12 of main car frame 1 in receipts
Hold together state, used as semitrailer, when needs are to the various large-scale, super of such as generating set, engineering machinery, military hardware etc.
During wide, the cargo that can not be split transport, by telescoping cylinder 3, the pull crossbeam 21 for making side vehicle frame 2 and pumping among main car frame 1
In unfolded state between drawing crossbeam 12, used as the semitrailer widened.
Main car frame 1, side vehicle frame 2, telescoping cylinder 3, axis pin 4, trailer suspension 5, support device 6 and cab apron 8
The utility model has the characteristics that lower：
1st, due to devising side vehicle frame 2, telescoping cylinder 3 and semitrailer device body, by telescoping cylinder 3 side vehicle frame 2 and half
The main car frame 1 of trailer arrangement body is converted into row position, realizes the adjusting of the width of semitrailer device body, no longer only uses half
The main car frame 1 of trailer arrangement body, therefore meet the transport needs to ultra-wide cargo.
2nd, due to devising main car frame 1, side vehicle frame 2 and telescoping cylinder 3, pull crossbeam 21 and the main car frame 1 of side vehicle frame 2 are passed through
Intermediate pull crossbeam 12 between movement, improve the kinematic accuracy of stretching, extension.
3rd, due to devising main car frame 1, side vehicle frame 2 and telescoping cylinder 3, pull crossbeam 21 and the main car frame 1 of side vehicle frame 2 are passed through
Intermediate pull crossbeam 12 between grafting, by the support of telescoping cylinder 3, the connection for improving side vehicle frame 2 and telescoping cylinder 3 is strong
Degree.
4th, due to devising axis pin 4, by axis pin 4, the stable connection performance of side vehicle frame 2 and telescoping cylinder 3 is improved.
5th, due to devising the technical characteristics of the utility model, in the work of the independent and mutual set of technical characteristic
With, by experiments have shown that, the property indices of the utility model are at least 1.7 times for existing property indices, lead to
Crossing assessment has good market value.
What also other side vehicle frame 2, telescoping cylinder 3 and semitrailer device bodies with carrying out extension width to side coupled
Technical characteristic is all one of embodiment of the utility model, and each technical characteristic of embodiment described above can carry out arbitrarily
Combination, to meet Patent Law, patent regulation and the requirement of guidelines for examination, no longer to each technology in above-described embodiment
The embodiment of all possible combination of feature is all described.
Therefore it is every to include with main car frame 1 in the semitrailer engineering device technique field that can be widened based on loading end
Semitrailer device body is arranged on the side surface part of main car frame 1 and is arranged to the side vehicle frame 2 coupled with 1 drawing and pulling type of main car frame, sets
The technology contents for putting the telescoping cylinder 3 between side vehicle frame 2 and main car frame 1 are all within the protection scope of the present utility model.
Claims (9)
1. a kind of semitrailer device that can be widened based on loading end, it is characterized in that：Include with main car frame（1）Semitrailer dress
Body is put, is arranged on main car frame（1）Side surface part and be arranged to and main car frame（1）The side vehicle frame of drawing and pulling type connection（2）, set
In side vehicle frame（2）With main car frame（1）Between telescoping cylinder（3）,
Also include axis pin（4）, semitrailer device body is arranged to also include trailer suspension（5）, support device（6）With
Cab apron（8）,
In main car frame（1）The side surface part of forward end be provided with support device（6）And in main car frame（1）Lower end surface portion
It is provided with trailer suspension（5）, in main car frame（1）Side surface part be provided with side vehicle frame（2）And side vehicle frame（2）Be arranged to
Main car frame（1）Plug-in type couples, in side vehicle frame（2）With main car frame（1）Between be provided with telescoping cylinder（3）And side vehicle frame（2）If
It is set to and passes through axis pin（4）With main car frame（1）Fixed connection, in side vehicle frame（2）Rear end end face portion be provided with cab apron（8）.
2. the semitrailer device according to claim 1 that can be widened based on loading end, it is characterized in that：It is carried out according to side
The mode of extension width is side vehicle frame（2）And telescoping cylinder（3）It is coupled to each other with semitrailer device body.
3. the semitrailer device according to claim 1 that can be widened based on loading end, it is characterized in that：Main car frame（1）It sets
For low flat bed semi trailer formula vehicle frame and main car frame（1）It is arranged to include main longitudinal grider（11）With intermediate pull crossbeam（12）, it is main
Longeron（11）It is arranged to the I-shaped beam-like body of gooseneck type and two main longitudinal griders（11）Corresponding parallel distribution is arranged to, centre is taken out
Draw crossbeam（12）It is arranged to box beam-like body and intermediate pull crossbeam（12）It is arranged to run through in main longitudinal grider（11）Between, it is intermediate
Pull crossbeam（12）It is arranged to and side vehicle frame（2）Plug-in type couples.
4. the semitrailer device according to claim 3 that can be widened based on loading end, it is characterized in that：Intermediate pull crossbeam
（12）Port part be arranged to be distributed in open mode and pull crossbeams among ten（12）It is arranged to along main longitudinal grider（11）'s
Center line compartment is distributed.
5. the semitrailer device according to claim 1 that can be widened based on loading end, it is characterized in that：Side vehicle frame（2）It sets
For steck formula rack-like body and side vehicle frame（2）It is arranged to include pull crossbeam（21）And bearing panel（22）, bearing panel
（22）It is arranged on pull crossbeam（21）Upper end end face and pull crossbeam（21）It is arranged to and main car frame（1）Plug-in type couples.
6. the semitrailer device according to claim 3 that can be widened based on loading end, it is characterized in that：Pull crossbeam（21）If
It is set to column and pull crossbeam（21）It is arranged to be plugged on intermediate pull crossbeam（12）In, in intermediate pull crossbeam（12）'s
Side surface part and pull crossbeam（21）Side surface part be respectively arranged with pin hole and axis pin（4）It is arranged on intermediate pull crossbeam（12）
Pin hole and pull crossbeam（21）Pin hole in, intermediate pull crossbeam（12）Pin hole be arranged to along intermediate pull crossbeam
（12）Center line arranged distribution and pull crossbeam（21）Pin hole be arranged to along pull crossbeam（21）Center line arrangement
Distribution, pull crossbeam（21）It is arranged to and intermediate pull crossbeam（12）According to one-to-one corresponding arranged distribution.
7. the semitrailer device that can be widened based on loading end according to claim 3 or 5, it is characterized in that：Telescoping cylinder（3）If
It is set to two section telescoping cylinders and telescoping cylinder（3）One end end set to pass through bearing and intermediate pull crossbeam（12）Couple, stretch
Contracting cylinder（3）Other end end set to pass through bearing and pull crossbeam（21）Connection, telescoping cylinder（3）It is arranged to according to after in preceding
The mode of distribution respectively with intermediate pull crossbeam（12）With pull crossbeam（21）Between.
8. the semitrailer device according to claim 1 that can be widened based on loading end, it is characterized in that：Trailer suspension
（5）Leaf spring equalizing type of suspension is arranged to,
Or support device（6）It is arranged to telescopic outrigger,
Or cab apron（8）It is arranged to spring assist cab apron.
9. the semitrailer device according to claim 1 that can be widened based on loading end, it is characterized in that：Main car frame（1）With side
Vehicle frame（2）, telescoping cylinder（3）And axis pin（4）It is arranged to be distributed and main car frame in a manner that side extends（1）With side vehicle frame
（2）With trailer suspension（5）, support device（6）And cab apron（8）It is arranged to be distributed according to semitrailer connection mode, main car frame
（1）Center line and side vehicle frame（2）Center line be arranged to be distributed in the way of being mutually parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720750213.5U CN207450028U (en) | 2017-06-26 | 2017-06-26 | The semitrailer device that can be widened based on loading end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720750213.5U CN207450028U (en) | 2017-06-26 | 2017-06-26 | The semitrailer device that can be widened based on loading end |
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| CN207450028U true CN207450028U (en) | 2018-06-05 |
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ID=62247487
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336745A (en) * | 2017-06-26 | 2017-11-10 | 中国重汽集团泰安五岳专用汽车有限公司 | The semitrailer device that can be widened based on loading end and its application |
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2017
- 2017-06-26 CN CN201720750213.5U patent/CN207450028U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336745A (en) * | 2017-06-26 | 2017-11-10 | 中国重汽集团泰安五岳专用汽车有限公司 | The semitrailer device that can be widened based on loading end and its application |
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