CN108609000A - A kind of brake pedal unit - Google Patents
A kind of brake pedal unit Download PDFInfo
- Publication number
- CN108609000A CN108609000A CN201611138700.2A CN201611138700A CN108609000A CN 108609000 A CN108609000 A CN 108609000A CN 201611138700 A CN201611138700 A CN 201611138700A CN 108609000 A CN108609000 A CN 108609000A
- Authority
- CN
- China
- Prior art keywords
- brake
- switch
- pedal
- brake pedal
- connecting pin
- 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.)
- Withdrawn
Links
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 5
- 239000010962 carbon steel Substances 0.000 claims abstract description 5
- -1 polytetrafluoroethylene ethylene Polymers 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 2
- 238000007710 freezing Methods 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
- B60Q1/441—Electric switches operable by the driver's pedals
Abstract
A kind of brake pedal unit is related to vehicle control system or its component.Pedal arm therein is made of connecting pin, transitioning end and the free end being connected in turn, and while structure increases deck, reduces the weight of pedal arm, to reduce the return resistance of pedal arm；Axle sleeve is welded in the mounting hole of connecting pin, the endoporus of axle sleeve is provided at both ends with the self-lubricating bearing made of cold rolled carbon steel sheet material, has the advantages that durability is good, transmission efficiency；Brake switch assembly includes that brake switch and installation buckle, installation snaps through back-off and is plugged in another mounting hole of switch bracket, it is contacted with switch triggering pad when not trampling brake pedal, the structure keeps brake switch adjustment operation more convenient, and since brake switch is double back line structure, the entire stroke of brake pedal has signal output, facilitates the state of determining brake switch.Using the return spring with beam, stable structure, and effectively reduce the noise of spring return function process.
Description
Technical field
The present invention relates to vehicle control system or its component, more particularly to a kind of brake pedal unit.
Background technology
In prior art, control mechanism of the brake pedal as brake system of car, pedal is stepped on a little（Pedal tread center
Point）To pedal shaft distance in 280-320mm, mostly use materials of the Q345B as pedal arm of 8mm plate thickness.Because pedal is stepped on
Point is remoter to distance in pedal shaft, and the torque generated on pedal arm is also bigger, is stepped on when pedal and a little arrives pedal shaft apart from super
350mm is crossed, uses the pedal arm of the Q345B of 8mm plate thickness cannot meet the requirements, such as increases pedal arm thickness and width, from whole
Cannot meet the requirements in vehicle arrangement, cost of stamping, and pedal arm return resistance can be caused to increase with piece weight.
Control mechanism of the brake pedal as brake system of car is needed to meet transmission efficiency and life requirement, be adopted more
With simple in structure, lower-cost self-lubricating bearing.Because the durability of metal material is good, but transmission efficiency is very low, now mostly uses
The preferable PA66 materials self-lubricating bearing of transmission efficiency, durability is applied on brake pedal.But because now to vehicle complete vehicle
Service life is gradually increased, and PA66 materials self-lubricating bearing is cannot gradually meet the needs of brake pedal durability.
Partial brake pedal is switched using metal nuts fit structure single circuit braking, which supplies with brake pedal unit
Goods.And the manufacture of the exemplars such as the initial position of brake switch and vacuum booster, brake pedal, vehicle body fire wall, instrument beam
There is relationship with build-up tolerance, so there are tolerances for the initial position of brake pedal, can not accurately ensure, after cannot being accurately
Brake lamp provides signal, reminds the brake operating of vehicle vehicle progress below.And to nut fit structure brake switch after assembling
Adjustment operation is again inconvenient.Since the brake switch of the structure is single-circuit configurations, just acted as when trampling brake pedal
With when brake pedal is not trampled, can not judging whether brake switch is good.
Partial brake pedal increases brake pedal returning place force using straight spring formula return spring, ensures brake pedal return-stroke
Last 20-0mm when, brake pedal can overcome brake switch elastic force and itself normal return of return resistance.But straight spring formula return
Spring easy tos produce resonance abnormal sound at work, so increasing sponge mostly in return spring reduces resonance noise.Return spring
Adding sponge to reduce resonance noise structure has following deficiency：（1）Sponge position is not allowed to be fixed easily, and has from return spring at work
Deviate from risk；（2）Sponge structure is easy interference with return spring, influences return spring returning place force, especially return spring steel wire
Diameter is in 1.2~1.6mm, and for returning place force in 30N or less, impacted is extremely serious.
Brake pedal mostly uses PVC material switch triggering pad and is assemblied on switch triggering holder to be coordinated with brake switch contact
Structure triggers brake switch.Automobile is after the work of long mileage, the position of switch triggering pad and brake switch contact
Existing pit is had more, when pit depth is to 1mm, can be triggered because brake switch contact occurs in pedal arm shake in bumpy road,
The glittering risk of rear brake lamp.Subsequent vehicle will be considered that front truck will be braked, therefore rear car can carry out emergency operation, cause
Traffic accident.The trigger architecture of switch triggering holder and brake switch contact cooperation is such as used, without buffering and will produce when triggering
Abnormal sound be easy to cause the damage of brake switch.The material of switch triggering pad will more meet it and the assembly of switch triggering holder is closed
System.
Invention content
In view of the deficienciess of the prior art, the object of the present invention is to provide a kind of brake pedal unit, simple in structure,
Reasonable design is easily installed and realizes.
The technical solution adopted in the present invention is：A kind of brake pedal unit, including by left socle, right support, upper bracket
With brake holder ontology, pedal arm and the brake switch assembly of switch bracket composition, pedal arm is fixed between the holder of left and right, is made
Dynamic switch assembly is fixed on switch bracket, is characterized in that, the pedal arm by be connected in turn connecting pin,
Transitioning end and free end composition, wherein connecting pin is slightly below transitioning end, and turning point, mistake are formed between connecting pin and transitioning end
Cross end be higher than free end, and from transitioning end start at an angle to free end tilt, width also since transitioning end gradually to
Free extreme direction reduces, and connecting pin is higher than free end.
The bottom of the transitioning end is slightly wider than the bottom of connecting pin.
It is additionally provided with mounting hole on the connecting pin, another mounting hole, and two are additionally provided on transitioning end
Horizontal distance between mounting hole is the 1/3 of pedal brachium.
Axle sleeve is welded in the mounting hole of connecting pin, the endoporus of axle sleeve is provided at both ends with by cold rolled carbon steel sheet material system
At self-lubricating bearing.
Freezing in self-lubricating bearing inner surface has polytetrafluoroethylene ethylene layer, and polytetrafluoroethylene ethylene layer is contacted with the outer surface of pipe axis.
It being also associated with return spring in the transitioning end of pedal arm, the return spring both ends are respectively arranged with grab, and one
A grab is connected in the mounting hole on switch bracket, and the end recesses of another grab and the axis pin being arranged on pedal arm connect
It connects；In the inside of return spring, it is also connected with beam.
The beam is coniform in both ends open, and the end of beam extends outward to form edge, edge clamping
On return spring inner surface, certain distance is all had inside part of the beam in addition to edge and return spring.
Brake switch assembly includes brake switch, the installation buckle with back-off, platform and internal thread hole, and installation buckle is logical
It crosses back-off to be plugged in another mounting hole of switch bracket, in the case where brake pedal is not operated, the braking is opened
The switch contact of pass passes through the internal thread hole for installing buckle and the switch being plugged on the upper switch triggering holder of pedal arm connecting pin
Triggering pad contact.
If control unit of engine detection signal process in, occur in addition to following two kinds of situations as a result, engine
Control unit sends out alarm：Brake pedal breaks down；
Two kinds of normal signal feedback procedures are：
（One）In the case where pedal is not operated, control unit of engine loop signal is connected, Brake lamp control loop signal
It disconnects；
（Two）In the case where pedal is operated, control unit of engine loop signal disconnects, and Brake lamp control loop signal connects
It is logical.
The beneficial effects of the invention are as follows：The brake pedal unit, pedal arm therein is by the connection that is connected in turn
End, transitioning end and free end composition reduce the weight of pedal arm, to reduce pedal while structure increases deck
The return resistance of arm；Axle sleeve is welded in the mounting hole of connecting pin, the endoporus of axle sleeve is provided at both ends with by cold rolled carbon steel sheet
Self-lubricating bearing made of material has the advantages that durability is good, transmission efficiency；Brake switch assembly includes that braking is opened
It closes, the installation buckle with back-off, platform and internal thread hole, installation snaps through another peace that back-off is plugged on switch bracket
It fills in hole, is contacted with switch triggering pad when not trampling brake pedal, which keeps brake switch adjustment operation more convenient, and
Since brake switch is double back line structure, the entire stroke of brake pedal has signal output, facilitates the state of determining brake switch.
Using the return spring with beam, stable structure, and effectively reduce the noise of spring return function process.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of brake pedal unit in the embodiment of the present invention；
Fig. 2 is pedal arm structural schematic diagram in the embodiment of the present invention；
Fig. 3 is self-lubricating bearing structural schematic diagram in the embodiment of the present invention；
Fig. 4 is brake switch general assembly schematic diagram in the embodiment of the present invention；
Fig. 5 is return spring structural schematic diagram in the embodiment of the present invention；
Number explanation is as follows in figure：1 left socle, 2 right supports, 3 upper brackets, 4 switch brackets, 5 pedal arms, the connecting pins 5-1,5-2
Transitioning end, the free ends 5-3, the turning points 5-4,5-5 mounting holes, 5-6 mounting holes, 5-7 switch triggerings holder, 5-8 switch triggerings pad,
6 brake switch assemblies, 6-1 brake switches, 6-2 back-offs, 6-3 platforms, 6-4 internal thread holes, 6-5 installation buckle, 6-6 switches touch
Point, 6-7 switch screw thread, 7 self-lubricating bearings, 8 pipe axis, 9 polytetrafluoroethylene ethylene layers, 10 return springs, 10-1 grabs, 10-2 grabs,
10-3 beams, the edges 10-4,11 axis pins, 12 β pins, 13 axle sleeves, 14 nuts.
Specific implementation mode
Keep the above objects, features and advantages of the present invention more obvious and easy to understand, below in conjunction with the accompanying drawings 1~Fig. 5 and tool
The present invention is described in further detail for body embodiment.
Brake pedal unit in the present embodiment, including be made of left socle 1, right support 2, upper bracket 3 and switch bracket 4
Brake holder ontology, pedal arm 5 and brake switch assembly 6, pedal arm 5 is fixed between left socle 1 and right support 2, brakes
Switch assembly 6 is fixed on switch bracket 4.Wherein, pedal arm 5 is by the connecting pin 5-1, the transitioning end 5-2 that are connected in turn
It is formed with free end 5-3, wherein connecting pin 5-1 is slightly below transitioning end 5-2, is formed between connecting pin 5-1 and transitioning end 5-2
Turning point 5-4, transitioning end 5-2 are higher than free end 5-3, and start to tilt to free end 5-3 at an angle from transitioning end 5-2,
Width is also gradually reduced to the free end directions 5-3 since transitioning end 5-2, and connecting pin 5-1 is higher than free end 5-3.Transitioning end 5-2
Bottom be slightly wider than the bottom of connecting pin 5-1.In the present embodiment pedal centre to the centers mounting hole 5-5 of connecting pin 5-1 away from
Original material Q345B is replaced from the QSTE460TM for 369mm, the use material 8mm plate thickness of pedal arm 5, is improving pedal arm 5 just
To with lateral rigidity, reduce the deflection of pedal arm.The present embodiment is increasing deck by the rational design to pedal arm
While, reduce the weight of pedal arm 5, to reduce the return resistance of pedal arm 5.
It is additionally provided with mounting hole 5-5 on the 5-1 of connecting pin, axle sleeve 13 is welded in mounting hole 5-5, in 13 endoporus of axle sleeve
Self-lubricating bearing 7 is arranged in both ends, pipe axis 8 is socketed in self-lubricating bearing 7, bolt passes through right support 2, pipe axis 8 and left socle 1
It is locked afterwards with nut 14.Be additionally provided with another mounting hole 5-6 on transitioning end 5-2, and between two mounting holes it is horizontal away from
It is about the 1/3 of 5 overall length of pedal arm.For example, the distance between two mounting holes are set as 130mm in the present embodiment.
Axle sleeve 13 is welded in the mounting hole 5-5 of connecting pin 5-1, the endoporus of axle sleeve 13 is provided at both ends with by cold-rolled carbon steel
Light sheet material（SPCC）Manufactured self-lubricating bearing 7, SPCC materials have preferable durability.In self-lubricating bearing 7 and pipe axis
Connecting portion, which also freezes, polytetrafluoroethylene ethylene layer 9, and polytetrafluoroethylene ethylene layer 9 is contacted with the inner surface of pipe axis 8, the increased polytetrafluoro
Pvdf layer 9 reduces the rotary resistance of axle sleeve 13 and pipe axis 8, to improve the transmission efficiency of brake pedal.And self-lubricating axis
Hold 7 structure is simple, cost is relatively low, also disclosure satisfy that the existing requirement being gradually increased to vehicle complete vehicle service life.
It is also associated with return spring 10 in the transitioning end 5-2 of pedal arm 5,10 both ends of return spring are respectively arranged with grab
10-1 and grab 10-2, grab 10-1 are connected in the mounting hole on switch bracket 4, and grab 10-2 is with setting on pedal arm 5
Axis pin 11 end recesses connection, axis pin 11 is in the mounting hole on being fixed on 5 transitioning end 5-2 of pedal arm by β pins 12.
The inside of return spring 10 is also connected with beam 10-3.
Beam 10-3 is coniform in both ends open, and the end of beam 10-3 extends outward to form edge 10-4, side
Be connected on 10 inner surface of return spring along 10-4, parts of the beam 10-3 in addition to edge 10-4 with inside return spring 10
It does not contact.
Brake switch assembly 6 used by the present embodiment includes brake switch 6-1, with back-off 6-2, platform 6-3 and interior
The installation of threaded hole 6-4 buckles 6-5, and installation buckle 6-5 is plugged on by being buckled to 6-2 in another mounting hole of switch bracket 4,
In the case where brake pedal is not operated, the brake switch contact 6-6 and switch triggering holder 5- being arranged on the 5-1 of connecting pin
Switch triggering pad 5-8 contacts in 7 upper installing holes.Switch triggering pad 5-8 pushes down switch contact 6-6.At this time by brake switch
6-1 rotates clockwise 90 degree, and brake switch retracts 0.25mm, and the switch screw thread 6-7 of brake switch 6-1 is with installation buckle 6-5's
Internal thread connects, and the platform 6-3 of installation buckle 6-5 is contacted with the surface of switch bracket 4.Switch triggering in the present embodiment pads 5-
8 replace existing PVC material using polyurethane, solve switch triggering pad 5-8 and go out with the positions contacted brake switch contact 6-6
The problem of existing pit.
Mono- tunnels brake switch 6-1 in the present embodiment are connect with control unit of engine, and another way controls back with Brake lamp
Road connects.If control unit of engine detection signal process in, occur in addition to following two kinds of situations as a result, engine control
Unit processed sends out alarm, shows that brake pedal breaks down.
Two kinds of normal signal feedback procedures are in the present embodiment：
（One）In the case where pedal is not operated, the circuits control unit of engine ECU are connected, and ECU receives signal 1, Brake lamp
Control loop disconnects, and returns to ECU signals 0；
（Two）In the case where pedal is operated, the circuits control unit of engine ECU disconnect, and ECU receives signal 0, Brake lamp control
Circuit processed is connected, and ECU signals 1 are returned.
Although specific embodiments of the present invention have been described above, those skilled in the art in the art should manage
Solution, these are merely examples, and many changes and modifications may be made, without departing from the principle of the present invention
And essence.The scope of the present invention is only limited by the claims that follow.
Claims (9)
1. a kind of brake pedal unit includes the brake holder sheet being made of left socle, right support, upper bracket and switch bracket
Body, pedal arm and brake switch assembly, pedal arm are fixed between the holder of left and right, and brake switch assembly is fixed on switch bracket
On, which is characterized in that the pedal arm is made of connecting pin, transitioning end and the free end being connected in turn, wherein even
It connects end and is slightly below transitioning end, form turning point between connecting pin and transitioning end, transitioning end is higher than free end, and is opened by transitioning end
Begin to tilt to free end at an angle, width is also gradually reduced to free extreme direction since transitioning end, and connecting pin is higher than certainly
By holding.
2. brake pedal unit as described in claim 1, which is characterized in that the bottom of the transitioning end is slightly wider than connecting pin
Bottom.
3. brake pedal unit as claimed in claim 1 or 2, which is characterized in that be additionally provided with peace on the connecting pin
Hole is filled, another mounting hole is additionally provided on transitioning end, and 1/ that the horizontal distance between two mounting holes is pedal brachium
3。
4. brake pedal unit as claimed in claim 3, which is characterized in that it is welded with axle sleeve in the mounting hole of connecting pin,
The endoporus of axle sleeve is provided at both ends with the self-lubricating bearing made of cold rolled carbon steel sheet material.
5. brake pedal unit as claimed in claim 4, which is characterized in that freezing in self-lubricating bearing inner surface has polytetrafluoro
Pvdf layer, polytetrafluoroethylene ethylene layer are contacted with the outer surface of pipe axis.
6. the brake pedal unit as described in claims 1 or 2 or 4 or 5, which is characterized in that also connect in the transitioning end of pedal arm
It is connected to return spring, the return spring both ends are respectively arranged with grab, and a grab is connected to the installation on switch bracket
In hole, another grab is connect with the end recesses for the axis pin being arranged on pedal arm；In the inside of return spring, also it is connected with
Beam.
7. brake pedal unit as claimed in claim 6, which is characterized in that the beam is in the circular cone of both ends open
The end of shape, beam extends outward to form edge, and edge is connected on return spring inner surface, and beam is in addition to edge
Part with all have certain distance inside return spring.
8. the brake pedal unit as described in claims 1 or 2 or 4, which is characterized in that brake switch assembly includes that braking is opened
It closes, the installation buckle with back-off, platform and internal thread hole, installation snaps through another peace that back-off is plugged on switch bracket
It fills in hole, in the case where brake pedal is not operated, the switch contact of the brake switch is by installing the interior spiral shell buckled
Pit is contacted with the switch triggering pad being plugged on the upper switch triggering holder of pedal arm connecting pin.
9. brake pedal unit as claimed in claim 8, which is characterized in that if control unit of engine detects signal process
In, occur in addition to following two kinds of situations as a result, then control unit of engine sends out alarm：Brake pedal breaks down；
Two kinds of normal signal feedback procedures are：
（One）In the case where pedal is not operated, control unit of engine signal circuit is connected, Brake lamp control loop signal
It disconnects；
（Two）In the case where pedal is operated, control unit of engine signal circuit disconnects, and Brake lamp control loop signal connects
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138700.2A CN108609000A (en) | 2016-12-12 | 2016-12-12 | A kind of brake pedal unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138700.2A CN108609000A (en) | 2016-12-12 | 2016-12-12 | A kind of brake pedal unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108609000A true CN108609000A (en) | 2018-10-02 |
Family
ID=63643598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138700.2A Withdrawn CN108609000A (en) | 2016-12-12 | 2016-12-12 | A kind of brake pedal unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108609000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693624A (en) * | 2019-01-24 | 2019-04-30 | 浙江新吉奥汽车有限公司 | A kind of new energy logistic car axle load detection device |
| CN110588601A (en) * | 2019-09-09 | 2019-12-20 | 苏州先锋物流装备科技有限公司 | Foot brake link mechanism |
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| CN203410441U (en) * | 2013-07-15 | 2014-01-29 | 重庆鹏得基业汽车部件有限公司 | Automobile brake pedal assembly |
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| CN204775189U (en) * | 2015-05-29 | 2015-11-18 | 华晨汽车集团控股有限公司 | Brake pedal structure |
| CN204878475U (en) * | 2015-06-15 | 2015-12-16 | 上海龙创汽车设计有限公司 | Novel return spring |
| CN105966377A (en) * | 2016-06-06 | 2016-09-28 | 东风柳州汽车有限公司 | Automobile brake pedal with self-lubricating function |
| CN206416983U (en) * | 2016-12-12 | 2017-08-18 | 华晨汽车集团控股有限公司 | A kind of brake pedal unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693624A (en) * | 2019-01-24 | 2019-04-30 | 浙江新吉奥汽车有限公司 | A kind of new energy logistic car axle load detection device |
| CN110588601A (en) * | 2019-09-09 | 2019-12-20 | 苏州先锋物流装备科技有限公司 | Foot brake link mechanism |
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Application publication date: 20181002 |
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