CN110341803A - Concrete mixing semi-trailer - Google Patents
Concrete mixing semi-trailer Download PDFInfo
- Publication number
- CN110341803A CN110341803A CN201810301892.7A CN201810301892A CN110341803A CN 110341803 A CN110341803 A CN 110341803A CN 201810301892 A CN201810301892 A CN 201810301892A CN 110341803 A CN110341803 A CN 110341803A
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- China
- Prior art keywords
- frame
- stringer
- vehicle frame
- plate
- trailer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/16—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying mixed concrete, e.g. having rotatable drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
- B62D21/20—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 trailer type, i.e. a frame specifically constructed for use in a non-powered vehicle
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The present invention provides a kind of concrete mixing semi-trailers, comprising: vehicle frame and tank body.Vehicle frame includes: front frame, Rear frame, and the middle vehicle frame being connected between the front frame and the Rear frame；The front frame, Rear frame and middle vehicle frame all have the stringer at two intervals, and the middle vehicle frame is relative to the front frame and the Rear frame to recessed, and the rail portion upper surface of the middle vehicle frame is lower than the stringer upper surface of the front frame and the Rear frame；Tank body is set on the vehicle frame to install concrete, the tank body, upper surface of the front bottom end of the tank body between middle two stringer of vehicle frame and lower than the middle vehicle frame.Concrete mixing semi-trailer of the invention, wherein vehicle frame is recessed relative to forward and backward vehicle frame, so that the front bottom end of tank body sinks to the stringer upper surface between middle two stringer of vehicle frame and being lower than middle vehicle frame, to reduce vehicle center of gravity, rollover risk is reduced, safety in mixer truck transport is improved.
Description
Technical field
The present invention relates to semitrailer manufacturing field more particularly to a kind of concrete mixing semi-trailers.
Background technique
To meet the needs of heavy construction building site, under the premise of meeting and meeting existing national standard, develop large-scale
Concrete mixing semi-trailer has been industrial trend.In view of the carrying demand of vehicle, it is therefore desirable to a kind of dedicated vehicle frame is designed,
Since the vehicle frame is connected to each principal assembly, the effect of complicated space force system is born, therefore the design of driving skills is particularly important.
Flat and staged is widely used in existing 100 structure of concrete mixing semi-trailer frame beam, sees Fig. 1 and Fig. 2.
Flat design and manufacture are all relatively simple, but higher due to filling Partial Height on mixer truck, and it is steady to will cause vehicle
Qualitative bad problem；And the relatively flat board-like slightly increased some difficulty of stepped design manufacture, but the relatively flat board-like summary of center of gravity
There is reduction, but still center of gravity is higher, the poor problem of safety.
Summary of the invention
In order to solve the above-mentioned technical problem, the invention reside in a kind of concrete mixing semi-trailer is provided, to solve existing skill
It is higher in position on vehicle frame because of tank body in art, the problems such as causing intact stability bad, lack safety.
In view of the above technical problems, the present invention proposes a kind of concrete mixing semi-trailer, comprising: vehicle frame and tank body；Vehicle frame
It include: front frame, Rear frame, and the middle vehicle frame being connected between the front frame and the Rear frame；The front frame, after
Vehicle frame and middle vehicle frame all have the stringer at two intervals, the middle vehicle frame relative to the front frame and the Rear frame to recessed,
And the rail portion upper surface of the middle vehicle frame is lower than the stringer upper surface of the front frame and the Rear frame；Tank body is to hold
Concrete is filled, the tank body is set on the vehicle frame, and the front bottom end of the tank body is between middle two stringer of vehicle frame
And it is lower than the upper surface of the middle vehicle frame.
In a preferred approach, the upper surface of the front frame stringer is higher than the stringer upper surface of the Rear frame；In described
The middle part of two stringer of vehicle frame is towards vehicle frame two sides flaring, so that two stringer spacing of the middle vehicle frame are in forward and backward narrow, intermediate wide knot
Structure.
In a preferred approach, the middle vehicle frame has sinking portion, and the upper surface in the sinking portion is vertical lower than the Rear frame
Beam upper surface；The minimum point of the tank body is lower than the upper surface in the sinking portion.
In a preferred approach, each stringer of the middle vehicle frame includes: end to end connection segment, the first inclination point
Section, sinking segmentation and the second angular sectors, the connection segment are connect with the stringer of the front frame, second angular sectors
It is docked with the stringer of the Rear frame；The sinking segment level setting, and its upper surface is lower than on the stringer of the Rear frame
Surface.
In a preferred approach, the connection segment and the stringer of the front frame are arranged with height, and the connection segment
It is connect with the outside of the front frame stringer.
In a preferred approach, the concrete mixing semi-trailer further include: two supporting legs, the upper end of the supporting leg and it is described in
The inside of two stringer of vehicle frame connects；The stabilizer blade is correspondingly arranged in the sinking segmentation.
In a preferred approach, round tube crossbeam is equipped between two stringer of middle vehicle frame, the round tube crossbeam is connected to described
The middle two maximum position of stringer spacing of vehicle frame.
In a preferred approach, the tank body is installed on the vehicle frame in low early and high after mode；The front frame is equipped with
It is used to support the forebay of the tank body front end, the forebay is set between two stringer of front frame；The Rear frame
It is equipped with rear frame, to support the rear end of the tank body.
In a preferred approach, the forebay includes: top plate and bottom plate and both side plate, the top plate and bottom plate and the equal edge of side plate
Body width method is arranged and surrounds a cavity structure, and the both ends of the top plate, the bottom plate and the side plate respectively with
Two stringers of the front frame connect；The top plate and the bottom plate are horizontally disposed, and the both side plate is vertically arranged and along vehicle
The distribution of frame time interval, the top edge of each side plate are docked with the top plate, and the lower edge of each side plate is docked with the bottom plate；It is described
The front end of tank body is placed on the top plate.
In a preferred approach, the rear frame includes: roof supporting, skew back plate and two vertical plates；The width of the vertical plate is certainly
It is lower and it is upper be in tapered structure, two vertical plate is distributed in the two sides in the frame width direction, and the lower part of each vertical plate with
The upper surface of the Rear frame stringer connects；The roof supporting is connected to the top of two vertical plate to support the tank body
Rear end；The skew back plate is obliquely installed and is connected between two vertical plates, the top margin of the skew back plate and the roof supporting direction
The connection on one side of body structure, the bottom edge of the skew back plate are connect with the upper surface of the Rear frame stringer.
In a preferred approach, the rear frame further include: two diagonal braces, two diagonal brace are distributed in two stringer of Rear frame
On, one end of each diagonal brace is connect with the skew back plate, and the other end extends towards body structure and the upper table with the Rear frame stringer
Face connection.
Compared with prior art, the invention has the following advantages: concrete mixing semi-trailer of the invention, wherein vehicle
Frame is recessed relative to forward and backward vehicle frame, so that the front bottom end of tank body is sunk between middle two stringer of vehicle frame and lower than middle vehicle frame
Stringer upper surface reduces rollover risk to reduce vehicle center of gravity, improves safety in mixer truck transport.
Further, the sinking portion of middle vehicle frame enables tank body to extend downwardly to increase the volume of tank body, meets big
The carrying and transport for the agitator tank just measured.
Detailed description of the invention
Fig. 1 is the partial structure diagram of prior art concrete mixing semi-trailer.
Fig. 2 is the partial structure diagram of prior art another kind concrete mixing semi-trailer.
Fig. 3 is the partial structure diagram of the present embodiment concrete mixing semi-trailer.
Fig. 4 is the partial enlarged view of part A in Fig. 3.
Fig. 5 is the structural schematic diagram of vehicle frame in the present embodiment.
Fig. 6 is the schematic perspective view that tank body is saved in Fig. 3.
Fig. 7 is the partial enlarged view of part B in Fig. 6.
Fig. 8 is the structural schematic diagram of the present embodiment vehicle frame.
The reference numerals are as follows: 12, dynamical system；2, walking mechanism；3, vehicle frame；3011, crossbeam；31, front frame；
311, stringer；301, upper flange；302, lower wing plate；303, web；32, Rear frame；321, stringer；304, upper flange；305, under
Wing plate；306, web；33, middle vehicle frame；331, stringer；307, upper flange；308, lower wing plate；309, web；3311, connection point
Section；3312, the first angular sectors；3313, sink to being segmented；3314, the second angular sectors；3012, round tube crossbeam；4, tank body；51,
Forebay；511, top plate；512, side plate；513, bottom plate；52, rear frame；521, roof supporting；522, skew back plate；524, vertical plate；
525, diagonal brace；526, bracket；527, bracket；6, assembly is fed；7, discharging assembly；8, supporting leg；9, towing pin.
Specific embodiment
The exemplary embodiment for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that
The present invention can have various variations in different embodiments, neither depart from the scope of the present invention, and theory therein
Bright and diagram inherently is illustrated as being used, rather than to limit the present invention.
The present invention is described in further detail with reference to the accompanying drawings and examples.In order in clear statement the present embodiment
Positional relationship between each component defines the front and back that "front", "rear" is respectively semitrailer traveling.
Refering to Fig. 3 to Fig. 8, concrete mixing semi-trailer provided in this embodiment, comprising: traction, walking mechanism 2, vehicle frame 3
And it is set to the tank body 4 on vehicle frame 3, tank body 4 is installed on vehicle frame 3 in low early and high after mode；It is also set on the front end of vehicle frame 3
Dynamic system 12, to provide power for traction.
The vehicle frame 3 of the present embodiment includes: front frame 31, Rear frame 32, and be connected to front frame 31 and Rear frame 32 it
Between middle vehicle frame 33.Two stringers 311 of front frame 31 are arranged in parallel, and two stringers 321 of Rear frame 32 are also arranged in parallel, and middle vehicle
Two stringers 331 of frame 33 substantially resemble a pear in shape in the projection of horizontal plane；Wherein, the two of front frame 31, Rear frame 32 and middle vehicle frame 33
The crossbeam 3011 of C-type steel is equipped between stringer 311,321,331.
Two stringers 311 of front frame 31 are horizontally disposed, and are I-steel comprising upper flange 301, lower wing plate 302 and set
Set the web 303 between upper flange 301 and lower wing plate 302.The stringer 321 of Rear frame 32 is also horizontally disposed with, and is also I-steel,
It includes upper flange 304, lower wing plate 305 and the web 306 being arranged between upper flange 304 and lower wing plate 305.Wherein, front frame
The upper surface of 31 stringers is higher than the stringer upper surface of Rear frame 32.
Two stringers 331 of middle vehicle frame 33 use the distressed structure of big gooseneck, and each stringer 331 is substantially in the projection of horizontal plane
Arc, the middle part of each stringer 331 is towards 3 two sides flaring of vehicle frame, so that the spacing of two stringers 331 is in forward and backward narrow, intermediate wide knot
Structure.Two stringers 331 are symmetrical arranged with 3 central axes of vehicle frame, and stringer 331 also includes upper flange 307, lower wing plate 308 and setting upper limb
Web 309 between plate 307 and lower wing plate 308.
Each stringer 331 includes: end to end connection segment 3311, the first angular sectors 3312, segmentation 3313 of sinking
With the second angular sectors 3314, as shown in Figure 5.
Two horizontally disposed and with front frame 31 stringers 311 of connection segment 3311 are arranged with height；First angular sectors
3312 tilt down setting towards 3 rear of vehicle frame, and front end is connect with connection segment 3311, the rear end of the first angular sectors 3312 with
The front end connection of sinking segmentation 3313；Segmentation 3313 of sinking is horizontally disposed, and upper surface is lower than table on 32 liang of stringers 321 of Rear frame
Face；Second angular sectors 3314 front end of second angular sectors 3314 and sink to being segmented towards being obliquely installed in 3 rear direction of vehicle frame
3313 connections, the rear end of the second angular sectors 3314 is docked with the stringer 321 of Rear frame 32.Wherein, sink segmentation 3313 and
The crossbeam 3311 and round tube crossbeam 3312 being connected between two sinkings segmentation 3313 constitute sinking portion.
Further, connection segment 3311 is connect with the lateral surface of the stringer 311 of front frame 31, so that middle vehicle frame 33 is vertical
Beam 331 encircles the stringer 311 in front frame 31 from outside.Specifically, upper flange 307 is docked with the outer side edges of upper flange 301, under
Wing plate 308 is docked with the outer side edges of lower wing plate 302, and the upper flange 307 of connection segment 3311 and lower wing plate 308 are in gradually wide knot
Structure, wider to connect respectively with front frame 31 on one side, relatively narrow one side is connect with the first angular sectors 3312.
In the present embodiment, the widest position of 33 liang of stringers of middle vehicle frame 331 is located at the lower end of the first angular sectors 3312, i.e.,
Its position docked with segmentation 3313 of sinking, which is provided with round tube crossbeam 3012, to play transition of stress, antitorque work
With.
In other embodiments, the widest position of 33 liang of stringers of middle vehicle frame 331 can also be adjusted according to the actual situation,
Guarantee that round tube crossbeam 3012 is connected to 33 liang of maximum positions of 331 spacing of stringer of middle vehicle frame, as shown in Figure 6.
The rear portion of front frame 31 is equipped with forebay 51, to support the front end of tank body 4；And the rear portion of Rear frame 32 is equipped with rear machine
Frame 52, to support the rear end of tank body 4.
Forebay 51 is set to the rear end of front frame 31, and between two stringers 311.Forebay 51 includes: a top plate
511, both side plate 512 and a bottom plate 513.Top plate 511, side plate 512 and bottom plate 513 are arranged and surround along vehicle-body width direction
One cavity structure, the both ends of top plate 511, both side plate 512 and bottom plate 513 are connect with the web 303 of two stringers 311 respectively；Top
Plate 511 and bottom plate 513 are horizontally disposed, and bottom plate 513 is placed on 311 lower wing plate 302 of stringer, and top plate 511 is close to 311 upper limb of stringer
The bottom surface of plate 301 is arranged；Both side plate 512 is vertically arranged, and its along vehicle body time interval be arranged, the top edge of each side plate 512 with
Top plate 511 connects, the lower edge and bottom plate 513 of each side plate 512.Further, top plate 511, side plate 512 and bottom plate 513 are equipped with
Lightening hole.
Rear frame 52 includes: roof supporting 521, skew back plate 522, rear sealing plate and two vertical plates 524.The width of vertical plate 524
It is from bottom to top in tapered structure, two vertical plates 524 are distributed in the two sides of 3 width direction of vehicle frame, and the lower part of each vertical plate 524 and rear car
The upper flange 307 of 32 stringer 321 of frame connects；Roof supporting 521 is connected to the top of two vertical plates 524；Skew back plate 522 is obliquely installed
And it is connected between two vertical plates 524, the top margin of skew back plate 522 and on one side connection of the roof supporting 521 towards body structure, skew back
The bottom edge of plate 522 is connect with the upper flange 307 of 32 stringer 321 of Rear frame；Wherein, skew back plate 522 is equipped with lightening hole.
Further, rear frame 52 further include: two diagonal braces 525, two diagonal brace 525 are distributed in 32 liang of stringers 321 of Rear frame
On, one end of each diagonal brace 525 is connect with skew back plate 522, the other end towards body structure extend and it is upper with 32 stringer 321 of Rear frame
Wing plate 307 connects, to play booster action.
The front end of the tank body 4 of the present embodiment is placed in the middle part of the top plate 511 of forebay 51, sets since forebay 51 is whole
It is placed between two stringers 311, structural strength is more reliable, and especially in Ackermann steer angle, two stringers 311 can play forebay 51
Booster action.The rear end of tank body 4 is placed in the middle part of the roof supporting 521 of rear frame 52.
The axial rear end of tank body 4 is equipped with charging assembly 6, and the lower part of corresponding charging assembly 6 is equipped with discharging assembly 7.Charging is total
It is connect by bracket 526 with the roof supporting 521 of rear frame 52 at 6；After discharging assembly 7 is by bracket 527 and rear frame 52
Sealing plate connection.The charging assembly 6 and discharging assembly 7 are identical as existing structure, repeat no more.
The present embodiment concrete mixing semi-trailer further include: two supporting legs 8 and towing pin 9.
Two supporting legs 8 are symmetrical arranged with 3 central axes of vehicle frame.In the present embodiment, supporting leg 8 is correspondingly arranged under middle vehicle frame 33
At heavy segmentation 3313, the upper end of each supporting leg 8 is connect with the inside of stringer 331.Towing pin 9 is set to the front end of front frame 31,
To be mounted with traction.
Concrete mixing semi-trailer of the invention, wherein vehicle frame is recessed relative to forward and backward vehicle frame, so that the front end bottom of tank body
Subordinate sinks to the stringer upper surface between middle two stringer of vehicle frame and being lower than middle vehicle frame, to reduce vehicle center of gravity, reduces rollover
Risk improves safety in mixer truck transport.Further, in conjunction with the pyriform structure of middle vehicle frame, so that tank body is installed on vehicle frame
On stability it is more preferable.
Further, the sinking portion of middle vehicle frame enables tank body to extend downwardly to increase the volume of tank body, meets big
The carrying and transport for the agitator tank just measured.
Although describing the present invention with reference to the above exemplary embodiment, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (11)
1. a kind of concrete mixing semi-trailer characterized by comprising
Vehicle frame comprising: front frame, Rear frame, and the middle vehicle frame being connected between the front frame and the Rear frame；Institute
State the stringer that front frame, Rear frame and middle vehicle frame all have two intervals, the middle vehicle frame relative to the front frame and it is described after
Vehicle frame is to recessed, and the rail portion upper surface of the middle vehicle frame is lower than table on the stringer of the front frame and the Rear frame
Face；
Tank body, to install concrete, the tank body is set on the vehicle frame, and the front bottom end of the tank body is located in described
Upper surface between two stringer of vehicle frame and lower than the middle vehicle frame.
2. concrete mixing semi-trailer as described in claim 1, which is characterized in that the upper surface of the front frame stringer is higher than
The stringer upper surface of the Rear frame；The middle part of two stringer of middle vehicle frame is towards vehicle frame two sides flaring, so that the middle vehicle frame
Two stringer spacing are in forward and backward narrow, intermediate wide structure.
3. concrete mixing semi-trailer as described in claim 1, which is characterized in that the middle vehicle frame has sinking portion, under this
The upper surface in heavy portion is lower than the stringer upper surface of the Rear frame；The minimum point of the tank body is lower than the upper table in the sinking portion
Face.
4. concrete mixing semi-trailer as described in claim 1, which is characterized in that each stringer of the middle vehicle frame includes:
End to end connection segment, the first angular sectors, sink segmentation and the second angular sectors, the connection segment and the front truck
The stringer of frame connects, and second angular sectors are docked with the stringer of the Rear frame；
The sinking segment level setting, and its upper surface is lower than the stringer upper surface of the Rear frame.
5. concrete mixing semi-trailer as claimed in claim 4, which is characterized in that the connection segment and the front frame
Stringer is arranged with height, and the connection segment is connect with the outside of the front frame stringer.
6. concrete mixing semi-trailer as claimed in claim 4, which is characterized in that the concrete mixing semi-trailer also wraps
Include: two supporting legs, the upper end of the supporting leg are connect with the inside of middle two stringer of vehicle frame；The stabilizer blade be correspondingly arranged in it is described under
Heavy segmentation.
7. concrete mixing semi-trailer as described in claim 1, which is characterized in that be equipped with circle between middle two stringer of vehicle frame
Pipe crossbeam, the round tube crossbeam are connected to the two maximum position of stringer spacing of middle vehicle frame.
8. concrete mixing semi-trailer as described in claim 1, which is characterized in that the tank body is pacified in low early and high after mode
Loaded on the vehicle frame；The front frame is equipped with the forebay for being used to support the tank body front end, and the forebay is set to institute
It states between two stringer of front frame；The Rear frame is equipped with rear frame, to support the rear end of the tank body.
9. concrete mixing semi-trailer as claimed in claim 8, which is characterized in that the forebay include: top plate and bottom plate and
Both side plate, the top plate and bottom plate and side plate are arranged along body width method and surround a cavity structure, and the top plate, institute
The both ends for stating bottom plate and the side plate are connect with two stringers of the front frame respectively；The top plate and the bottom plate are horizontal
Setting, the both side plate are vertically arranged and are distributed along vehicle frame time interval, and the top edge of each side plate is docked with the top plate, each side
The lower edge of plate is docked with the bottom plate；The front end of the tank body is placed on the top plate.
10. concrete mixing semi-trailer as claimed in claim 8, which is characterized in that the rear frame include: roof supporting,
Skew back plate and two vertical plates；The width of the vertical plate is in tapered structure from bottom to top, and two vertical plate is distributed in the frame width
The two sides in direction, and the lower part of each vertical plate is connect with the upper surface of the Rear frame stringer；The roof supporting is connected to
The top of two vertical plate is to support the rear end of the tank body；The skew back plate is obliquely installed and is connected between two vertical plates, institute
State the connection on one side of the top margin and the roof supporting of skew back plate towards body structure, bottom edge and the rear car of the skew back plate
The upper surface of frame stringer connects.
11. concrete mixing semi-trailer as claimed in claim 10, which is characterized in that the rear frame further include: two diagonal braces,
Two diagonal brace is distributed on two stringer of Rear frame, and one end of each diagonal brace is connect with the skew back plate, and the other end is towards vehicle body
Front end extends and connect with the upper surface of the Rear frame stringer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810301892.7A CN110341803A (en) | 2018-04-04 | 2018-04-04 | Concrete mixing semi-trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810301892.7A CN110341803A (en) | 2018-04-04 | 2018-04-04 | Concrete mixing semi-trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110341803A true CN110341803A (en) | 2019-10-18 |
Family
ID=68172847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810301892.7A Pending CN110341803A (en) | 2018-04-04 | 2018-04-04 | Concrete mixing semi-trailer |
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| Country | Link |
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| CN (1) | CN110341803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312684A (en) * | 2022-01-14 | 2022-04-12 | 洛阳中集凌宇汽车有限公司 | Get rid of and hang structure concrete mixing transportation semitrailer |
-
2018
- 2018-04-04 CN CN201810301892.7A patent/CN110341803A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312684A (en) * | 2022-01-14 | 2022-04-12 | 洛阳中集凌宇汽车有限公司 | Get rid of and hang structure concrete mixing transportation semitrailer |
| CN114312684B (en) * | 2022-01-14 | 2023-08-29 | 洛阳中集凌宇汽车有限公司 | Concrete mixing transportation semitrailer with drop and pull structure |
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