CN109353414A - A kind of vehicle chassis architecture - Google Patents
A kind of vehicle chassis architecture Download PDFInfo
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- CN109353414A CN109353414A CN201811078555.2A CN201811078555A CN109353414A CN 109353414 A CN109353414 A CN 109353414A CN 201811078555 A CN201811078555 A CN 201811078555A CN 109353414 A CN109353414 A CN 109353414A
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- Prior art keywords
- floor pan
- assembly
- vertical plate
- pan assembly
- supporting beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention provides a kind of vehicle chassis architectures, are related to vehicle mechanical technical field, solve that vehicle chassis architecture in the prior art is complicated, welding junction is more, processing is cumbersome and the unconspicuous technical problem of light weight degree.The vehicle chassis architecture includes floor pan assembly, floor pan assembly includes the connecting plate of several grafting arranged side by side, bottom plate lower part is provided with the supporting beam along the setting of floor pan assembly length direction and the vertical plate along the setting of floor pan assembly width direction, i.e. supporting beam and vertical plate floor pan assembly different directions support connecting plate plug-in position, and the material of floor pan assembly be light-weight metal.The present invention improves the light weight degree of vehicle chassis for simplifying vehicle chassis architecture.
Description
Technical field
The present invention relates to vehicle mechanical technical fields, more particularly, to a kind of vehicle chassis architecture.
Background technique
Currently, lightweight has become the trend of world car development.Aluminium alloy has that density is low, intensity is high, and plasticity is good,
The advantages that anticorrosive is most widely used one kind non-ferrous metal structural material in industry.Aluminium alloy high intensity itself, low-density
Characteristic determine that its weight is only with the 40~55% of size steel body, under same condition, vehicle complete vehicle weight is reduced
10%, electric car can save the electric energy of 6%-9%, greatly facilitate effect for increasing electric car course continuation mileage.Mesh
Before, domestic and international major automobile vendor has the full aluminium car of volume production, and at home and abroad multiple areas use, but this full aluminium car is
All-aluminium body skeleton does not include chassis portion, both at home and abroad to the research of electric motor coach aluminum alloy chassis still in the elementary step.
Existing some trial-production aluminium alloy passenger-carrying chassis mostly use technique for welding both at home and abroad at present, for aluminium alloy material
Material, welding processing is difficult, and welding process requirement is higher, and welding junction intensity is poor, is generally only capable of reaching strength of parent
70%；Furthermore current aluminium alloy passenger-carrying chassis mostly uses truss structure, and structure is complicated, and welding junction is more, and processing is cumbersome,
And light weight degree is unobvious, higher cost.
Therefore, vehicle chassis architecture is complicated in the prior art, welding junction is more, processing is cumbersome and light weight degree for solution
Unconspicuous technical problem becomes the major issue that those skilled in the art need to solve.
Summary of the invention
The purpose of the present invention is to provide a kind of vehicle chassis architecture, it is multiple to solve vehicle chassis architecture in the prior art
It is miscellaneous, welding junction is more, processing is cumbersome and the unconspicuous technical problem of light weight degree.Many technical solutions provided by the invention
In many technical effects elaboration as detailed below that can be generated of optimal technical scheme.
To achieve the above object, the present invention provides following technical schemes:
A kind of vehicle chassis architecture provided by the invention, including floor pan assembly, the floor pan assembly include that several are arranged side by side
The connecting plate of grafting, the floor pan assembly lower part are provided with along the supporting beam of floor pan assembly length direction setting and along described
The vertical plate of floor pan assembly width direction setting, wherein the material of the floor pan assembly is light-weight metal.
Preferably, the anticreep that connecting plate one side junction is provided with convex joint and connect with the convex joint
Slot, another opposite side junction are provided with for the female joint with the convex joint grafting and protrude into described anti-be disengaged from the groove
Extension.
Preferably, the vertical plate includes being set to the docking groove of end and being set to side to add for pre-embedded bolt and connection
The function trough of strong plate.
Preferably, the supporting beam includes supporting beam ontology, is set to described this body side surface of supporting beam and is used to support fixation
The connector of the supporting beam ontology and the fixing piece of the connection connector and the floor pan assembly, this side of the supporting beam
Face is provided with groove structure, and the groove structure is protruded into described connector one end, and the other end is fixed on described by the fixing piece
At floor pan assembly.
Preferably, the floor pan assembly includes sequentially connected front floor assembly, middle part floor pan assembly and heel slab
Assembly, front floor assembly end are marked time assembly before being provided with, and middle part floor pan assembly side is marked time always after being provided with
At heel slab assembly end is connected with rear storehouse assembly.
Preferably, the front floor assembly lower end thereof is provided with the first vertical plate of the effect of being used to support and is set to institute
The second vertical plate of the front floor assembly other end is stated, is provided with support rib between first vertical plate and second vertical plate,
Front floor assembly lower part is provided with leading portion supporting beam, and the leading portion supporting beam detachably connects with the front floor assembly
It connects.
Preferably, the middle part floor pan assembly and front floor assembly junction are provided with third vertical plate, it is described in
Portion's floor pan assembly and heel slab assembly junction are provided with the 4th vertical plate, and the third vertical plate and the 4th vertical plate are simultaneously
Column setting；Middle part floor pan assembly lower part is provided with several middle section supporting beams arranged side by side.
Preferably, including the cell connector for power battery pack to be hung on to the floor pan assembly lower part, the electricity
Pond connecting plate is connect with the supporting beam ontology.
Preferably, the supporting beam ontology is provided with the card slot for fixing high-low pressure harness and pipeline.
Preferably, the connecting plate is groove structure, and the groove structure is internally provided with reinforcing rib.
In technical solution provided by the invention, vehicle chassis architecture includes floor pan assembly, and floor pan assembly is by multiple arranged side by side
The identical monolithic connecting plate grafting of section structure together forms, and floor pan assembly lower part is provided with the supporting beam of support connecting plate
And vertical plate, supporting beam are arranged along floor pan assembly length direction, i.e. multiple connections along the orientation of connecting plate to being set side by side
Each link position of plate is supported, and vertical plate is arranged along floor pan assembly width direction, i.e. the longitudinal direction along monolithic connecting plate
Connecting plate is supported, the twisting resistance between connecting plate and supporting beam, supporting beam and vertical plate can be balanced in the not Tongfang of floor pan assembly
To the plug-in position of support connecting plate, and the material of floor pan assembly is light-weight metal, so set, solving in the prior art
Vehicle chassis architecture is complicated, welding junction is more, processing is cumbersome and the unconspicuous technical problem of light weight degree.
Optimal technical scheme of the present invention can also at least have the following technical effects:
Connecting plate one side is provided with convex joint and prevents being disengaged from the groove, and another side junction is provided with female joint and extension
Part, so that adjacent two pieces of connecting plates are directly plugged in together, structure is simple, easy for installation.
The section structure good mechanical property of vertical plate and supporting beam, intensity are high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is vehicle chassis architecture top view provided in an embodiment of the present invention；
Fig. 2 is vehicle chassis architecture front view provided in an embodiment of the present invention；
Fig. 3 is the grafting schematic diagram of connecting plate provided in an embodiment of the present invention；
Fig. 4 is support beam structure schematic diagram provided in an embodiment of the present invention；
Fig. 5 is vertical plate structural schematic diagram provided in an embodiment of the present invention；
Fig. 6 is supporting beam, vertical plate and floor pan assembly connection schematic diagram provided in an embodiment of the present invention；
Fig. 7 is the 4th vertical plate provided in an embodiment of the present invention and heel slab assembly connection schematic diagram.
1- connecting plate in figure；101- convex joint；102- is anti-to be disengaged from the groove；103- female joint；104- extension；2- support
Beam；201- supporting beam ontology；202- connector；203- fixing piece；21- leading portion supporting beam；The middle section 22- supporting beam；23- back segment branch
Support beam；3- vertical plate；301- docking groove；302- function trough；303- side panel；The first vertical plate of 31-；The second vertical plate of 32-；33- third
Vertical plate；The 4th vertical plate of 34-；4- front floor assembly；Floor pan assembly in the middle part of 5-；6- heel slab assembly；It marks time before 7- assembly；8-
After mark time assembly；Storehouse assembly after 9-；10- power battery pack；Turn pumps storehouse before 11-.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Present embodiment is designed to provide a kind of vehicle chassis architecture, uses multiple materials for light-weight metal
Connecting plate is plugged in together side by side, while connecting plate assembly lower part is supported by supporting beam and vertical plate, solves existing skill
Vehicle chassis architecture is complicated in art, welding junction is more, processing is cumbersome and the unconspicuous technical problem of light weight degree.
Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, embodiments illustrated below is not to recorded in claim
Summary of the invention rise any restriction effect.In addition, the full content of composition represented by following example is not limited to as right
Necessary to the solution invented documented by it is required that.
Referring to Fig.1-2, the present invention provides a kind of vehicle chassis architecture, including floor pan assembly, floor pan assembly includes multiple
The identical connecting plate 1 of section structure arranged side by side, multiple connecting plates 1 are plugged in together, and floor pan assembly lower part is provided with support connection
The supporting beam 2 and vertical plate 3 of plate 1, supporting beam 2 are arranged along floor pan assembly length direction, i.e., the orientation along connecting plate 1 is to arranged side by side
The each link position for the multiple connecting plates 1 being arranged is supported, and vertical plate 3 is arranged along floor pan assembly width direction, i.e., along connection
The longitudinal direction of plate 1 supports connecting plate 1, can balance the twisting resistance between connecting plate 1 and supporting beam 2, supporting beam 2 and vertical plate 3
Vertical plate 3 can be made to bear the twisting resistance between supporting beam 2 and connecting plate 1, supporting beam 2 and vertical plate 3 in the not Tongfang of floor pan assembly
To the plug-in position of support connecting plate 1, and the material of floor pan assembly is light-weight metal, so set, solving the prior art
Middle vehicle chassis architecture is complicated, welding junction is more, processing is cumbersome and the unconspicuous technical problem of light weight degree.
Wherein, supporting beam 2 and vertical plate 3 are connect with floor pan assembly, pass through gusset and bolt between supporting beam 2 and vertical plate 3
It is fixedly connected.Light-weight metal refers to superpower light structures metal, has very high specific strength and specific modulus, or hard
Matter ratio, if titanium alloy and aluminium alloy have the characteristics that density is small, specific strength is high, corrosion resistance is good, aerospace, communications and transportation,
Vehicle manufacture, chemical field etc. have a wide range of applications.Preferably, the material of floor pan assembly, supporting beam 2 and vertical plate 3 is aluminium
Alloy.
Referring to Fig. 3, as the embodiment of the present invention, optionally embodiment, 1 one side junction of connecting plate are provided with convex
Connector 101 and connect with convex joint 101 it is anti-be disengaged from the groove 102, another opposite side junction is provided with for connecing with convex
The female joint 103 of first 101 grafting and protrude into it is anti-be disengaged from the groove 102 extension 104.Optionally, convex joint 101 and female joint
103 is being capable of close-fitting square structures；Prevent being disengaged from the groove 102 openings and being provided with to the hook-type of 102 internal bend of anticreep slot preventing
De- part, extension 104 are the plate structure that 103 opening of female joint extends to the side surface direction far from opening, extension 104
End setting can be with the lug boss of anti-falling piece hook even.When two pieces of 1 grafting of connecting plate, the convex that is provided with of one piece of connecting plate 1 is connect
The side structure grafting for being provided with female joint 103 of first 101 side structure and another piece of connecting plate 1, when grafting, from connection
The end of plate 1 starts grafting, and convex joint 101 and female joint 103 connect, and extension 104 is disengaged from the groove 102 contacts company with anti-
It connecing, anti-falling piece and lug boss connect, so set, 1 structure of connecting plate of grafting is simple, and it is easy to operate, it can be good at
The active force applied from upper and lower surfaces is born, structural stability is good.
Wherein, for connecting plate 1 by 6068-T6 line aluminium alloy extrusion forming, 6068-T6 line aluminium alloy is the conjunction of aluminium, magnesium, silicon
Gold has moderate strength, good corrosion resistance.
Further, connecting plate 1 is groove structure, and the groove structure of connecting plate 1 is internally provided with T-shape reinforcing rib.
Referring to Fig. 4, as the embodiment of the present invention, optionally embodiment, supporting beam 2 include supporting beam ontology 201, setting
The connector 202 of fixed supporting beam ontology 201 is used to support in 201 side of supporting beam ontology and connects connector 202 and bottom plate
The fixing piece 203 of assembly, 201 two sides of supporting beam ontology are provided with groove structure, are in " I " fonts, supporting beam ontology
201 two sides are provided with connector 202, and connector is " Z " type structure, the tail portion of connector 202 " Z " type structure and supporting beam
The groove structure that supporting beam ontology 201 is protruded into the groove structure upper side connection of ontology 201, i.e. 202 one end of connector, connector
The tail portion setting of 202 " Z " type structures is fluted, and the groove structure upper side of supporting beam ontology 201 is provided with to be connect with groove
Convex block, groove can play the role of positioning to supporting beam ontology 201 and the connection of connector 202 with convex block herein；Connector 202 is another
Floor pan assembly is fixed on by fixing piece 203 in one end, wherein fixing piece 203 can be, but not limited to as T-shape bolt.Supporting beam 2
Material can be, but not limited to as 7003-T6 aluminium alloy.
Further, 201 bottom of supporting beam ontology is provided with T-shape card slot, and card slot is used to support 2 lower part vehicle height of beam
The fixation of crimping beam and pipeline can be convenient efficiently admittedly by sliding into T-shape bracket or T-shape line card in T-shape card slot
Alignment beam.
It should be noted that the lower contacts at the top of " I " fonts supporting beam ontology 201 and T-shape reinforcing rib, then
It is fixedly connected by connector 202 with fixing piece 203.Connector 202 and fixing piece 203 are set according to the length of supporting beam ontology 201
It is equipped with multiple.
Referring to Fig. 5, as the embodiment of the present invention, optionally embodiment, vertical plate 3 include the docking groove 301 for being set to end
With the function trough 302 for being set to side, vertical plate 3 at docking groove 301 by connecting jointing, so that vertical plate 3 and bottom plate are total
At connection, function trough 302 is used for pre-embedded bolt and connection reinforcement plate.In addition, being arranged between the adjacent functional slot 302 of vertical plate 3
There is a side panel 303, the opening of the end of side panel 303 slightly covering function slot 302 is provided between opposite function trough 302
" mouth " word internal stiffeners can play 3 structure of vertical plate to reinforce support force, the side panel of vertical plate 3 to a certain extent
303 and 3 part of vertical plate that surrounds of 302 side wall of function trough be hollow structure, can reduce the quality of vertical plate 3, to a certain extent
Improve the light weight degree of this vehicle chassis architecture.
- 2 and Fig. 6-7 referring to Fig.1, as the embodiment of the present invention, optionally embodiment, floor pan assembly include being sequentially connected
Front floor assembly 4, middle part floor pan assembly 5 and heel slab assembly 6,4 side of front floor assembly is provided with for for making
User marks time assembly 7 before front part of vehicle is got on or off the bus, turn pump storehouse 11, middle part bottom before 4 end of front floor assembly is provided with
5 side of plate assembly is provided with for marking time after vehicle rear is got on or off the bus assembly 8 for user, after mark time and be arranged at assembly 8
There is the back door to play a supportive role to mark time vertical plate 12,6 end of heel slab assembly is connected with rear storehouse assembly 9.
4 lower end thereof of front floor assembly is provided with the first vertical plate 31 and is set to the of 4 other end of front floor assembly
Two vertical plates 32 are provided with support rib, 32 two sides of the first vertical plate 31 and the second vertical plate between first vertical plate 31 and the second vertical plate 32
It is provided with gusset, is then connected through a screw thread and is fixed at front floor assembly 4.Before 4 lower part of front floor assembly is provided with
Section supporting beam 21, leading portion supporting beam 21 is detachably connected with front floor assembly 4, leading portion supporting beam 21 and the first vertical plate 31 and the
The connection of two vertical plates 32.Wherein, leading portion supporting beam 21 at least two, it is preferable that leading portion supporting beam 21 is two, and about preceding
The central axes of 4 length direction of portion's floor pan assembly are symmetrical arranged.
Middle part floor pan assembly 5 and 4 junction of front floor assembly are provided with third vertical plate 33, and middle part floor pan assembly 5 is with after
Floor pan assembly 6 junction in portion's is provided with the 4th vertical plate 34, and third vertical plate 33 is set side by side with the 4th vertical plate 34, and 33 liang of third vertical plate
Side is provided with gusset, is then bolted and is fixed at the floor pan assembly 5 of middle part, the 4th vertical plate 34 and heel slab assembly
6 are connected by jointing, and jointing one end is provided with the plate with 301 grafting of docking groove, and the other end is provided with and connects
The convex joint 101 of 1 grafting of plate and anti-it is disengaged from the groove 102 or female joint 103 and extension 104；Floor pan assembly 5 lower part in middle part is set
Several middle section supporting beams 22 arranged side by side are equipped with, supporting beam 22 one end in middle section is connect with 33 side of third vertical plate, the other end and
The connection of four vertical plates, 34 side, junction can be by gusset and being bolted.Wherein, the number of middle section supporting beam 22 is four, and
And middle section supporting beam 22 is symmetrical arranged about the central axes of 5 length direction of middle part floor pan assembly.
6 lower part of heel slab assembly is provided with back segment supporting beam 23, and 23 end of back segment supporting beam is connect with the 4th vertical plate 34.
Wherein, back segment supporting beam 23 can be two, and central axes of the back segment supporting beam 23 about 6 length direction of heel slab assembly
It is symmetrical arranged.
This vehicle chassis architecture further includes the cell connector for power battery pack 10 to be hung on to floor pan assembly lower part,
Cell connector is threadedly coupled with supporting beam ontology 201, to fix power battery pack.According to the difference of power battery pack type selecting,
Its cell connector can customize according to demand, and mounting means is to install upwards from bottom of frame.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of vehicle chassis architecture, which is characterized in that including floor pan assembly, the floor pan assembly includes several grafting arranged side by side
Connecting plate (1), the floor pan assembly lower part be provided with along the floor pan assembly length direction setting supporting beam (2) and along institute
State the vertical plate (3) of floor pan assembly width direction setting, wherein the material of the floor pan assembly is light-weight metal.
2. vehicle chassis architecture according to claim 1, which is characterized in that connecting plate (1) the one side junction is set
Be equipped with convex joint (101) and connect with the convex joint (101) it is anti-be disengaged from the groove (102), another opposite side junction
It is provided with for the female joint (103) with the convex joint (101) grafting and protrudes into the anti-extension for being disengaged from the groove (102)
(104)。
3. vehicle chassis architecture according to claim 1, which is characterized in that the supporting beam (2) includes supporting beam ontology
(201), it is set to the connector that supporting beam ontology (201) side is used to support the fixed supporting beam ontology (201)
(202) and the fixing piece (203) of the connection connector (202) and the floor pan assembly, supporting beam ontology (201) side
It is provided with groove structure, the groove structure is protruded into described connector (202) one end, and the other end is solid by the fixing piece (203)
At the floor pan assembly.
4. vehicle chassis architecture according to claim 1, which is characterized in that the vertical plate (3) includes being set to described stand
The docking groove (301) of plate (3) end and be set to the vertical plate (3) side for pre-embedded bolt and connection reinforcement plate function
Slot (302).
5. vehicle chassis architecture according to claim 1, which is characterized in that before the floor pan assembly includes sequentially connected
Portion's floor pan assembly (4), middle part floor pan assembly (5) and heel slab assembly (6), front floor assembly (4) end are provided with
Before mark time assembly (7), middle part floor pan assembly (5) side is marked time assembly (8) after being provided with, the heel slab assembly (6)
End is connected with rear storehouse assembly (9).
6. vehicle chassis architecture according to claim 5, which is characterized in that front floor assembly (4) lower end thereof
It is provided with the first vertical plate (31) and is set to the second vertical plate (32) of front floor assembly (4) other end, described first is vertical
Support rib is provided between plate (31) and second vertical plate (32), front floor assembly (4) lower part is provided with leading portion
Supporting beam (21), the leading portion supporting beam (21) are detachably connected with the front floor assembly (4), the leading portion supporting beam
(21) it is connect with first vertical plate (31) and second vertical plate (32).
7. vehicle chassis architecture according to claim 5, which is characterized in that the middle part floor pan assembly (5) and it is described before
Portion's floor pan assembly (4) junction is provided with third vertical plate (33), the middle part floor pan assembly (5) and the heel slab assembly
(6) junction is provided with the 4th vertical plate (34), and the third vertical plate (33) is set side by side with the 4th vertical plate (34)；In described
Portion's floor pan assembly (5) lower part is provided with several middle section supporting beams (22) arranged side by side, middle section supporting beam (22) the both ends part
It is not connect with the third vertical plate (33) and the 4th vertical plate (34).
8. vehicle chassis architecture according to claim 3, which is characterized in that including for hanging power battery pack (10)
Cell connector in the floor pan assembly lower part, the cell connector are connect with the supporting beam ontology (201).
9. vehicle chassis architecture according to claim 3, which is characterized in that supporting beam ontology (201) setting is useful
In the card slot of fixed high-low pressure harness and pipeline.
10. vehicle chassis architecture according to claim 1 or 2, which is characterized in that connecting plate (1) setting is fluted
Structure, the groove structure are internally provided with reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078555.2A CN109353414B (en) | 2018-09-14 | 2018-09-14 | Vehicle chassis structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078555.2A CN109353414B (en) | 2018-09-14 | 2018-09-14 | Vehicle chassis structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109353414A true CN109353414A (en) | 2019-02-19 |
| CN109353414B CN109353414B (en) | 2021-04-16 |
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ID=65350841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811078555.2A Active CN109353414B (en) | 2018-09-14 | 2018-09-14 | Vehicle chassis structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624191A (en) * | 2019-10-21 | 2019-12-31 | 捷达消防科技（苏州）股份有限公司 | Connecting device for carriage body and auxiliary beam of fire engine |
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| CN205134870U (en) * | 2015-11-06 | 2016-04-06 | 孙建新 | Floor lock who exempts from to glue detains |
| CN106428234A (en) * | 2016-08-30 | 2017-02-22 | 南南铝业股份有限公司 | Novel splicing aluminum floor for refrigerated track carriage |
| CN206267489U (en) * | 2016-12-19 | 2017-06-20 | 东北林业大学 | The Multifunctional hollow Wood-plastic floor that a kind of band is snapped connection |
| CN206510990U (en) * | 2017-03-02 | 2017-09-22 | 南南铝业股份有限公司 | A kind of ribbing floor of full aluminium van |
| CN207607548U (en) * | 2017-06-30 | 2018-07-13 | 聊城中通轻型客车有限公司 | A kind of electric bus floor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624191A (en) * | 2019-10-21 | 2019-12-31 | 捷达消防科技（苏州）股份有限公司 | Connecting device for carriage body and auxiliary beam of fire engine |
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| CN109353414B (en) | 2021-04-16 |
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