CN107813739A - A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle - Google Patents
A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle Download PDFInfo
- Publication number
- CN107813739A CN107813739A CN201711234405.1A CN201711234405A CN107813739A CN 107813739 A CN107813739 A CN 107813739A CN 201711234405 A CN201711234405 A CN 201711234405A CN 107813739 A CN107813739 A CN 107813739A
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- China
- Prior art keywords
- mounting blocks
- shock
- absorbing
- guide rail
- seat
- Prior art date
- 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
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention provides a kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle, it is related to shock-absorbing seat technical field.Horizontal shock-absorbing device includes damper and is connected to two installing mechanisms at damper both ends；Installing mechanism includes guide rail, the first mounting blocks, the second mounting blocks, the first contiguous block, the second contiguous block and pin；First mounting blocks are fixedly connected on guide rail, and the first mounting blocks or guide rail are used to be fixedly connected with car body；Second mounting blocks are set on guide rail and are flexibly connected with guide rail, and the second mounting blocks are used to be fixedly connected with seat；One end of first contiguous block is hinged on the first mounting blocks, and one end of the second mounting blocks is hinged on the second mounting blocks, and the other end of the other end of the first contiguous block and the second mounting blocks is hinged by one end of pin and damper.Shock-absorbing seat and vehicle include horizontal shock-absorbing device.In the horizontal shock-absorbing device, damper does work in larger distance, and the energy-absorbing cushioning ability of damper is stronger.
Description
Technical field
The present invention relates to shock-absorbing seat technical field, in particular to a kind of horizontal shock-absorbing device, shock-absorbing seat and car
.
Background technology
At present, the special car in military field, its interior space is substantially all narrow, makes between its seat and car body
Can relative displacement it is in small distance.Existing damping device, generally all it is that damper is set between car body and seat, reaches suction
The effect of energy, and damper is vertically arranged with respect to car body, and the distance of damper acting is no better than can between seat and car body
The distance of relative displacement, damper is caused to do work in small distance, the energy absorption ability of damper is weaker, and impulsive force directly passes
It is delivered on damper, makes that damper load is excessive, and damper easily fails, loses the ability of energy-absorbing damping.
Therefore, in larger distance, the damping device that energy-absorbing cushioning ability is stronger of a kind of damper acting are designed, this is current
Technical problem urgently to be resolved hurrily.
The content of the invention
The present invention provides a kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle, and it is intended at least partly solve existing vehicle
In small distance, the weaker technical problem of seat damping energy absorption ability of damper acting in seat.
The first technical scheme provided by the invention：
A kind of horizontal shock-absorbing device is applied in shock-absorbing seat, and the horizontal shock-absorbing device includes damper and connected respectively
Two installing mechanisms at the damper both ends；
The installing mechanism includes guide rail, the first mounting blocks, the second mounting blocks, the first contiguous block, the second contiguous block and pin
Nail；
First mounting blocks are fixedly connected on the guide rail, and first mounting blocks or the guide rail are used for fixed connect
Pick up body；Second mounting blocks are set on the guide rail and are flexibly connected with the guide rail, and second mounting blocks are used for
It is fixedly connected with seat；One end of first contiguous block is hinged on first mounting blocks, one end of second mounting blocks
It is hinged on second mounting blocks, the other end of the other end of first contiguous block and second mounting blocks passes through institute
The one end for stating pin and the damper is hinged.
Further, first contiguous block and second contiguous block are the list structure of arc.
Further, the guide rail in two installing mechanisms is vertically arranged, in two installing mechanisms
First mounting blocks are arranged on sustained height position, and second mounting blocks in two installing mechanisms are arranged on same
Height and position.
Second of technical scheme provided by the invention：
A kind of horizontal shock-absorbing device of shock-absorbing seat described in including seat and second of technical scheme, the seat, which is fixed, to be connected
It is connected on second mounting blocks.
Further, the shock-absorbing seat also includes cushion, and the cushion is arranged on the seat and described second
Between mounting blocks.
Further, the quantity of the horizontal shock-absorbing device is multiple.
Further, the quantity of the horizontal shock-absorbing device is two, is led described in two horizontal shock-absorbing devices
Rail is vertically arranged, and two horizontal shock-absorbing devices are vertically intervally arranged, in two horizontal shock-absorbing devices
First mounting blocks are located remotely from each other setting, and second mounting blocks in two horizontal shock-absorbing devices are close to each other to be set
Put, buffer stopper is provided between second mounting blocks in two horizontal shock-absorbing devices.
Further, the corresponding guide rail is collinearly set in two horizontal shock-absorbing devices, and the buffer stopper is arranged
On the guide rail.
Further, the buffer stopper is any of foamed aluminium, spring or air cushion.
The third technical scheme provided by the invention：
A kind of vehicle includes car body and the shock-absorbing seat described in second of technical scheme, first mounting blocks or described leads
Rail is fixedly connected on the car body.
The beneficial effect of horizontal shock-absorbing device provided by the invention, shock-absorbing seat and vehicle is：First, damper does work
In larger distance, the energy-absorbing cushioning ability of damper is stronger.Secondly, seat can make damper produce horizontal stroke with respect to the vertical motion of car body
To stretching or contraction, in impulsive force indirect transfer to damper, be weakened the load that damper undertakes, damper is not volatile
Effect, ensure that damper can be repeatedly used for a long.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation for the shock-absorbing seat that first embodiment of the invention provides.
Fig. 2 is the structural representation of horizontal shock-absorbing device in Fig. 1.
Fig. 3 is structural representation when horizontal shock-absorbing device does not do work in Fig. 1.
Fig. 4 undertakes structural representation during load for horizontal shock-absorbing device in Fig. 1.
Fig. 5 is structural representation when horizontal shock-absorbing device does work in Fig. 1.
Fig. 6 is the structural representation for the shock-absorbing seat that second embodiment of the invention provides.
Fig. 7 is the structural representation of two horizontal shock-absorbing device arrangements in Fig. 6.
Fig. 8 is the structural representation for the shock-absorbing seat that third embodiment of the invention provides.
Icon：1- shock-absorbing seats；2- seats；3- horizontal shock-absorbing devices；4- dampers；5- installing mechanisms；6- guide rails；7-
One mounting blocks；The mounting blocks of 8- second；The contiguous blocks of 9- first；The contiguous blocks of 10- second；11- pins；12- cushions；13- buffer stoppers；
14- linear bearings.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is to be understood that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, or the orientation or position that those skilled in the art usually understand
Relation is put, it is of the invention necessary with simplified description, rather than the equipment or element of instruction or hint meaning to be for only for ease of description
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint
Relative importance.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
First embodiment
Fig. 1 and Fig. 2 are referred to, present embodiments provides a kind of shock-absorbing seat 1, shock-absorbing seat 1 includes seat 2 and laterally subtracted
Shake device 3.Horizontal shock-absorbing device 3 includes damper 4 and is connected to two installing mechanisms 5 at the both ends of damper 4.Fitting machine
Structure 5 includes guide rail 6, the first mounting blocks 7, the second mounting blocks 8, the first contiguous block 9, the second contiguous block 10 and pin 11.
First mounting blocks 7 are fixedly connected on guide rail 6, and the first mounting blocks 7 are used to be fixedly connected with car body, certainly, guide rail 6
Car body can be fixedly connected with.Second mounting blocks 8 are set on guide rail 6 by linear bearing 14 and are flexibly connected with guide rail 6, the
Two mounting blocks 8 are fixedly connected with seat 2.One end of first contiguous block 9 is hinged on the first mounting blocks 7, one end of the second mounting blocks 8
It is hinged on the second mounting blocks 8, the other end of the other end of the first contiguous block 9 and the second mounting blocks 8 passes through pin 11 and resistance
One end of Buddhist nun's device 4 is hinged.
Guide rail 6 in two installing mechanisms 5 is vertically arranged, and the first mounting blocks 7 in two installing mechanisms 5 are arranged on together
One height and position, the second mounting blocks 8 in two installing mechanisms 5 are arranged on sustained height position.Also, the first mounting blocks 7
In the top of the second mounting blocks 8.
The shape of first contiguous block 9 and the second contiguous block 10 has multiple choices, such as：Linear, arc etc., the present embodiment
In, the first contiguous block 9 and the second contiguous block 10 are the list structure of arc, guide rail 6 is connected by the first contiguous block 9 and second
The active force for connecing block 10 is primarily intended to the length direction of guide rail 6, also makes damper 4 by the first contiguous block 9 and the second connection
The active force of block 10 is primarily intended to the length direction of damper 4.
Fig. 3 is structural representation when horizontal shock-absorbing device 3 does not do work in Fig. 1, refers to Fig. 3.Horizontal shock-absorbing device 3 is not
During acting, damper 4 is in normal contraction state.
Fig. 4 undertakes structural representation during load for horizontal shock-absorbing device 3 in Fig. 1, refers to Fig. 4.Horizontal shock-absorbing device 3
When undertaking load, load here can be the gravity or seat 2 and the gravity sum of passenger of seat 2, with seat 2
The second mounting blocks 8 that state connects surely are relatively distant from the first mounting blocks 7 by along the downward active force of guide rail 6, the second mounting blocks 8,
The position that pin 11 connects moves closer to guide rail 6, and damper 4 is by a certain degree of stretching, until what is be subject to the second mounting blocks 8
Force balance.
Fig. 5 is structural representation when horizontal shock-absorbing device 3 does work in Fig. 1, refers to Fig. 5.Horizontal shock-absorbing device 3 does work
When, it is, when the bottom of car body is by energy impact, impulsive force can pass to be fixedly connected with the vehicle body by car body
One mounting blocks 7, make the first mounting blocks 7 by upward active force, then the first mounting blocks 7 transfer energy to the first contiguous block
9, so as to absorb part energy.Meanwhile second mounting blocks 8 in the presence of inertia, can holding position be within a certain period of time
Become, so, the first mounting blocks 7 are relatively distant from the second mounting blocks 8, and the position that pin 11 connects moves closer to guide rail 6, damper 4
Significantly stretched, to reach the effect of energy-absorbing damping.
The shock-absorbing seat 1 that the present embodiment provides, which employs horizontal shock-absorbing device 3, first, the distance that damper 4 does work
Larger, the energy-absorbing cushioning ability of damper 4 is stronger.Secondly, seat 2 can make damper 4 produce horizontal stroke with respect to the vertical motion of car body
To stretching or contraction, in impulsive force indirect transfer to damper 4, be weakened the load that damper 4 undertakes, damper 4 is not
Easily failure, ensure that damper 4 can be repeatedly used for a long.
Second embodiment
A kind of shock-absorbing seat 1 is present embodiments provided, it is close with the structure of shock-absorbing seat 1 that first embodiment provides, no
It is with part, in the present embodiment, is provided with multiple horizontal shock-absorbing devices 3.
Fig. 6 and Fig. 7 are referred to, shock-absorbing seat 1 includes seat 2, cushion 12 and horizontal shock-absorbing device 3.Multiple transverse directions subtract
Shake device 3 is disposed on the lower section of seat 2 and is located at sustained height position.In the present embodiment, the number of horizontal shock-absorbing device 3
Measure as two.Cushion 12 is arranged between the mounting blocks 8 of seat 2 and second.Cushion 12 can be foamed aluminium, spring or air cushion
Any of, or other crumple energy-absorbing materials or the material with buffering property.
Guide rail 6 in two installing mechanisms 5 is vertically arranged, and the first mounting blocks 7 in two installing mechanisms 5 are arranged on together
One height and position, the second mounting blocks 8 in two installing mechanisms 5 are arranged on sustained height position.Also, the first mounting blocks 7
In the lower section of the second mounting blocks 8.
When the bottom of car body is by energy impact, impulsive force can be passed to by car body be fixedly connected with the vehicle body it is multiple
On first mounting blocks 7 of horizontal shock-absorbing device 3, making the first mounting blocks 7, then the first mounting blocks 7 will by upward active force
Energy transmission gives the first contiguous block 9, so as to absorb part energy.Meanwhile second mounting blocks 8 in the presence of inertia, can exist
Holding position is constant in certain time, so, 7 relatively close second mounting blocks 8 of the first mounting blocks, pin 11 connect position by
Gradually significantly compressed away from guide rail 6, damper 4, to reach the effect of energy-absorbing damping.
3rd embodiment
A kind of shock-absorbing seat 1 is present embodiments provided, it is close with the structure of shock-absorbing seat 1 that first embodiment provides, no
It is with part, in the present embodiment, is provided with two horizontal shock-absorbing devices 3 up and down.
Referring to Fig. 8, shock-absorbing seat 1 includes seat 2, buffer stopper 13 and horizontal shock-absorbing device 3.Horizontal shock-absorbing device 3
Quantity is two, and the guide rail 6 in two horizontal shock-absorbing devices 3 is vertically arranged, two horizontal shock-absorbing devices 3 vertically between
Every arrangement.
Corresponding guide rail 6 is collinearly set in two horizontal shock-absorbing devices 3.The first installation in two horizontal shock-absorbing devices 3
Block 7 is located remotely from each other setting, 8 setting close to each other of the second mounting blocks in two horizontal shock-absorbing devices 3.Specifically, top first
Mounting blocks 7 are located at the top of the second mounting blocks 8.In lower section horizontal shock-absorbing device 3, the first mounting blocks 7 are located at the second mounting blocks 8
Lower section.
Buffer stopper 13 is provided between the second mounting blocks 8 in two horizontal shock-absorbing devices 3.Buffer stopper 13 is set in guide rail
On 6.Buffer stopper 13 can be any of foamed aluminium, spring or air cushion, or other crumple energy-absorbing materials have
The material of buffering property.
When the bottom of car body is by energy impact, impulsive force can be passed to by car body be fixedly connected with the vehicle body it is multiple
On first mounting blocks 7 of horizontal shock-absorbing device 3, making the first mounting blocks 7, then the first mounting blocks 7 will by upward active force
Energy transmission gives the first contiguous block 9, so as to absorb part energy.Meanwhile in the horizontal shock-absorbing device 3 of top, the second installation
Block 8 is relatively distant from the first mounting blocks 7, and damper 4 is stretched, and absorbs part energy.In the horizontal shock-absorbing device 3 of lower section, the
Two mounting blocks, 8 relatively close first mounting blocks 7, damper 4 are compressed, and absorb part energy.In this process, upper and lower two
Individual second mounting blocks 8 can compress buffer stopper 13, buffer stopper 13 is reabsorbed part energy.So, shock-absorbing seat 1 plays multiple
The effect of energy-absorbing damping.
Fourth embodiment
A kind of vehicle is present embodiments provided, the vehicle any cushion socket into 3rd embodiment including car body and first
Chair 1.First mounting blocks 7 or guide rail 6 are fixedly connected on car body, and the second mounting blocks 8 are fixedly connected with seat 2.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of horizontal shock-absorbing device, applied in shock-absorbing seat, it is characterised in that the horizontal shock-absorbing device includes damper
With two installing mechanisms for being connected to the damper both ends；
The installing mechanism includes guide rail, the first mounting blocks, the second mounting blocks, the first contiguous block, the second contiguous block and pin；
First mounting blocks are fixedly connected on the guide rail, and first mounting blocks or the guide rail are used to be fixedly connected with car
Body；Second mounting blocks are set on the guide rail and are flexibly connected with the guide rail, and second mounting blocks are used to fix
Connecting chair；One end of first contiguous block is hinged on first mounting blocks, and one end of second mounting blocks is hinged
On second mounting blocks, the other end of the other end of first contiguous block and second mounting blocks passes through the pin
Follow closely and be hinged with one end of the damper.
2. horizontal shock-absorbing device according to claim 1, it is characterised in that first contiguous block and second connection
Block is the list structure of arc.
3. horizontal shock-absorbing device according to claim 1, it is characterised in that the guide rail in two installing mechanisms
It is vertically arranged, first mounting blocks in two installing mechanisms are arranged on sustained height position, two installations
Second mounting blocks in mechanism are arranged on sustained height position.
4. a kind of shock-absorbing seat, including seat, it is characterised in that the shock-absorbing seat also includes the transverse direction described in claim 1
Damping device, the seat are fixedly connected on second mounting blocks.
5. shock-absorbing seat according to claim 4, it is characterised in that the shock-absorbing seat also includes cushion, described slow
Layer is rushed to be arranged between the seat and second mounting blocks.
6. shock-absorbing seat according to claim 4, it is characterised in that the quantity of the horizontal shock-absorbing device is multiple.
7. shock-absorbing seat according to claim 4, it is characterised in that the quantity of the horizontal shock-absorbing device be two, two
The guide rail in the individual horizontal shock-absorbing device is vertically arranged, two horizontal shock-absorbing devices vertically row of interval
Cloth, first mounting blocks in two horizontal shock-absorbing devices are located remotely from each other setting, in two horizontal shock-absorbing devices
The second mounting blocks setting close to each other, be provided between second mounting blocks in two horizontal shock-absorbing devices
Buffer stopper.
8. shock-absorbing seat according to claim 7, it is characterised in that corresponding described in two horizontal shock-absorbing devices
Guide rail is collinearly set, and the buffer stopper is set on the guide rail.
9. shock-absorbing seat according to claim 7, it is characterised in that the buffer stopper is in foamed aluminium, spring or air cushion
It is any.
10. a kind of vehicle, including car body, it is characterised in that the vehicle also includes subtracting described in any one of claim 4 to 9
Seat is shaken, first mounting blocks or the guide rail are fixedly connected on the car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711234405.1A CN107813739A (en) | 2017-11-30 | 2017-11-30 | A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711234405.1A CN107813739A (en) | 2017-11-30 | 2017-11-30 | A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107813739A true CN107813739A (en) | 2018-03-20 |
Family
ID=61606636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711234405.1A Pending CN107813739A (en) | 2017-11-30 | 2017-11-30 | A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107813739A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1630658A1 (en) * | 1968-01-11 | 1971-07-22 | Schwermaschb Verlade Und Trans | Driver's seat, especially for industrial trucks |
| JP2004291940A (en) * | 2003-03-28 | 2004-10-21 | T S Tec Kk | Vehicular seat |
| US7413158B1 (en) * | 2004-11-08 | 2008-08-19 | Burer Peter J | Shock absorbing platform with dampening means |
| CN205113083U (en) * | 2015-11-13 | 2016-03-30 | 温岭市富康汽车零部件有限公司 | Adjustable seat of lightning protection |
| CN107116025A (en) * | 2017-06-15 | 2017-09-01 | 湖南天爱农业科技有限公司 | A kind of agricultural production quick sand sieving machine of corn |
| CN107128223A (en) * | 2017-05-19 | 2017-09-05 | 安徽华诚海绵制品有限公司 | A kind of slow structure of shaking of automobile sponge seat cushion |
| CN107344515A (en) * | 2017-07-27 | 2017-11-14 | 重庆怡佳机械制造有限公司 | Seat suspension installing mechanism and vehicle are fried in lightning protection |
| CN207826030U (en) * | 2017-11-30 | 2018-09-07 | 重庆怡海科技发展有限公司 | A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle |
-
2017
- 2017-11-30 CN CN201711234405.1A patent/CN107813739A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1630658A1 (en) * | 1968-01-11 | 1971-07-22 | Schwermaschb Verlade Und Trans | Driver's seat, especially for industrial trucks |
| JP2004291940A (en) * | 2003-03-28 | 2004-10-21 | T S Tec Kk | Vehicular seat |
| US7413158B1 (en) * | 2004-11-08 | 2008-08-19 | Burer Peter J | Shock absorbing platform with dampening means |
| CN205113083U (en) * | 2015-11-13 | 2016-03-30 | 温岭市富康汽车零部件有限公司 | Adjustable seat of lightning protection |
| CN107128223A (en) * | 2017-05-19 | 2017-09-05 | 安徽华诚海绵制品有限公司 | A kind of slow structure of shaking of automobile sponge seat cushion |
| CN107116025A (en) * | 2017-06-15 | 2017-09-01 | 湖南天爱农业科技有限公司 | A kind of agricultural production quick sand sieving machine of corn |
| CN107344515A (en) * | 2017-07-27 | 2017-11-14 | 重庆怡佳机械制造有限公司 | Seat suspension installing mechanism and vehicle are fried in lightning protection |
| CN207826030U (en) * | 2017-11-30 | 2018-09-07 | 重庆怡海科技发展有限公司 | A kind of horizontal shock-absorbing device, shock-absorbing seat and vehicle |
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