CN107225520B - Suspended rubber mat fixture - Google Patents
Suspended rubber mat fixture Download PDFInfo
- Publication number
- CN107225520B CN107225520B CN201710379927.4A CN201710379927A CN107225520B CN 107225520 B CN107225520 B CN 107225520B CN 201710379927 A CN201710379927 A CN 201710379927A CN 107225520 B CN107225520 B CN 107225520B
- Authority
- CN
- China
- Prior art keywords
- rubber mat
- plate
- fixed frame
- fixedly connected
- pedestal
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carpets (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of suspended rubber mat fixtures, including fixed frame, two clamping elements, pedestal and two last items, wherein fixed frame with the second end face of rubber mat ontology for being fixedly connected；Two clamping elements are fixedly connected with the two sides of fixed frame respectively, and two clamping elements offer two link slots close to the side of fixed frame；First through hole and the second through-hole are offered on pedestal, first through hole is used for across fixing bolt, and the second through-hole is used for across positioning pin；The both ends of two last items are respectively erected in a link slot of clamping element, and the engagement shaft matched with pedestal is provided on last item.The side of suspending cushion is fixed on fixed frame by the present invention, the fixing bolt and positioning pin of the other side are inserted respectively into pedestal, two last items limit pedestal, and clamping element then limits last item, increase position limiting structure, convenient for measuring the three-way rigidity value of suspended rubber mat, and measurement result is more accurate.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of suspended rubber mat fixtures.
Background technique
Engine front mounting carries the effect of connection engine assembly and longitudinal beam in complete vehicle structure, holds at it
When this basis function of load connection, while the vibration for the power source generation that also needs to decay, play the role of vibration isolation, therefore, engine
More setting suspended rubber mats are to vibration damping on front-suspension, and with the raising of auto NVH performance requirement, the requirement to suspended rubber mat is also got over
Come it is higher, wherein the three-dimensional for detecting suspended rubber mat is rigid since three-way rigidity value has an important role for vehicle vibration isolation
It is very important for angle value.
Therefore, more when being detected also the three-way rigidity value of suspended rubber mat at indispensable one of technology, generally detection
It is detected using electronic tension meter, in order to enable detection data is carried out closer to actual loading situation by electronic tension meter
When Compression and Expansion, all make its stress point as close possible to the practical set point of vehicle, suspension of this principle for early development
Rubber mat detection makes troubles, and since final suspended rubber mat is with position-limiting cover, but is fitted without limit in detection early period
Cover, due to not having position limiting structure, the three-way rigidity value for detecting suspended rubber mat becomes extremely difficult, and measurement result is not also smart
Really.
Summary of the invention
The object of the present invention is to provide a kind of suspended rubber mat fixtures, to solve the above problems, increase limit for suspended rubber mat
Structure improves measurement result accuracy convenient for detecting the three-way rigidity value of suspended rubber mat.
The present invention provides a kind of suspended rubber mat fixture, the suspended rubber mat includes rubber mat ontology, fixing bolt and positioning
It sells, is provided with opposite first end face and second end face on the rubber mat ontology, the fixing bolt and the positioning pin are solid
Due in the first end face, the suspended rubber mat fixture includes:
Fixed frame, the fixed frame with the second end face of the rubber mat ontology for being fixedly connected；
Two clamping elements, two clamping elements are fixedly connected with the two sides of the fixed frame respectively, and two clamping elements are close
The side of the fixed frame offers two link slots；
Pedestal, first through hole and the second through-hole are offered on the pedestal, and the first through hole is used for across the fixation
Bolt, second through-hole are used for across the positioning pin；
Two last items, the both ends of two last items are respectively erected in a link slot of the clamping element, the pressure
The engagement shaft matched with the pedestal is provided on axis.
Suspended rubber mat fixture as described above, wherein preferably, the fixed frame includes rectangular plate and transferring member,
The rectangular plate is fixedly connected with the transferring member, and the rectangular plate is described for being fixedly connected with the second end face
The first operating surface and the second operating surface are provided in transferring member.
Suspended rubber mat fixture as described above, wherein preferably, it is provided with joint face on the rectangular plate, it is described
The second end face of joint face and the rubber mat ontology fits fixation.
Suspended rubber mat fixture as described above, wherein preferably, the transferring member includes at L-shaped the be fixedly connected
One operation panel and the second operation panel, first operating surface are set on first operation panel, the second operating surface setting
In on second operation panel；
First operation panel is fixedly connected with a side of the rectangular plate, second operation panel and the side
Another side of shape plate is fixedly connected.
Suspended rubber mat fixture as described above, wherein preferably, the two sides of the rectangular plate are provided with two connections
Ear offers connecting hole on the engaging lug；
The outer profile of the clamping element is zigzag shape, including the first plate and the second plate being fixedly connected, described first
The length of plate is greater than the length of second plate, and first plate is positioned close to the side of the fixed frame, described
Link slot is provided with side of first plate far from second plate；
The both ends of first plate offer perforation, the perforation and the connecting hole are passed through using bolt, by institute
Clamping element is stated to connect with the fixed frame.
Suspended rubber mat fixture as described above, wherein preferably, the pedestal includes pedestal and pressing plate, the pressing plate
Vertical with the pedestal to be fixedly connected, the first through hole and second through-hole are provided on the pressing plate.
Suspended rubber mat fixture as described above, wherein preferably, the last item further include connecting rod, the first connecting shaft and
Second connecting shaft, successively fixation is set on the connecting rod for first connecting shaft, the engagement shaft and second connecting shaft,
First connecting shaft and second connecting shaft are fixedly installed two on the engagement shaft for being erected in the link slot
The width of stop collar, spacing and the pressing plate between two stop collars is adapted.
Suspended rubber mat fixture as described above, wherein preferably, the radius of the stop collar is greater than the engagement shaft
Radius, and the difference of the radius of the radius of the stop collar and the engagement shaft is less than the thickness of the pressing plate.
Suspended rubber mat fixture as described above, wherein further include transition plates preferably, the transition plates with it is described solid
Determine frame to be fixedly connected, the transition plates with the second end face of the rubber mat ontology for being fixedly connected.
Suspended rubber mat fixture as described above, wherein preferably, the link slot is U-lag.
Suspended rubber mat fixture provided by the invention, including fixed frame, two clamping elements, pedestal and two last items, wherein fixed frame
For being fixedly connected with the second end face of rubber mat ontology；Two clamping elements are fixedly connected with the two sides of fixed frame respectively, two clamping elements
Side close to fixed frame offers two link slots；First through hole and the second through-hole are offered on pedestal, first through hole is used for
Across fixing bolt, the second through-hole is used for across positioning pin；The both ends of two last items are respectively erected in a link slot of clamping element
In, the engagement shaft matched with pedestal is provided on last item.The side of suspending cushion is fixed on fixed frame by the present invention, another
The fixing bolt and positioning pin of side are inserted respectively into pedestal, and two last items limit pedestal, and clamping element then limits last item, are increased
Position limiting structure is added, convenient for measuring the three-way rigidity value of suspended rubber mat, and measurement result is more accurate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of suspended rubber mat；
Fig. 2 is the structural schematic diagram of suspended rubber mat fixture provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the fixed frame of suspended rubber mat fixture provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the clamping element of suspended rubber mat fixture provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the pedestal of suspended rubber mat fixture provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the last item of suspended rubber mat fixture provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the transition plates of suspended rubber mat fixture provided in an embodiment of the present invention.
Description of symbols:
The rectangular plate 111- joint face 112- engaging lug of 10- fixed frame 11-
113- connecting hole 12- transferring member 121- the first operation panel the second operation panel of 122-
20- clamping element 21- the first plate 211- link slot the second plate of 22-
30- pedestal 31- pedestal 32- pressing plate 321- first through hole
322- the second through-hole 40- last item 41- engagement shaft 411- stop collar
42- connecting rod 43- the first connecting shaft 44- the second connecting shaft 50- transition plates
51- positioning pin 100- rubber mat ontology 110- first end face 101- fixing bolt
102- positioning pin
Specific embodiment
The embodiment of the present invention is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.It is retouched below with reference to attached drawing
The embodiment stated is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
As shown in Figure 1, being illustrated first to suspended rubber mat, suspended rubber mat includes rubber mat ontology 100, fixing bolt 101
With positioning pin 102, opposite first end face 110 and second end face, fixing bolt 101 and positioning pin are provided on rubber mat ontology
102 are both secured in first end face 110.
As shown in Figures 2 to 6, suspended rubber mat fixture provided in an embodiment of the present invention, including fixed frame 10, two clamping elements
20, pedestal 30 and two last items 40.
Wherein, fixed frame 10 with the second end face of rubber mat ontology 100 for being fixedly connected；Two clamping elements 20 respectively with fixation
The two sides of frame 10 are fixedly connected, and two clamping elements 20 offer two link slots 211 close to the side of fixed frame 10；It is opened on pedestal 30
Equipped with first through hole 321 and the second through-hole 322, first through hole 321 is used for across fixing bolt 101, and the second through-hole 322 is for wearing
Cross positioning pin 102；The both ends of two last items 40 are respectively erected in a link slot 211 of clamping element 20, are provided on last item 40
The engagement shaft 41 matched with pedestal 30.
It is to refer to the direction in Fig. 1, in the present embodiment, the side of suspending cushion is fixed on fixed frame 10, it is another
The fixing bolt 101 and positioning pin 102 of side are inserted respectively into pedestal 30, and two last items 40 limit pedestal 30, and clamping element 20
Then last item 40 is limited, total, which matches, limits suspended rubber mat, then using electronic tension meter in fixed frame 10
The three-way rigidity value of upper measurement suspended rubber mat, increases position limiting structure, convenient for measuring the three-way rigidity value of suspended rubber mat, and surveys
It is more accurate to measure result.
Above-mentioned link slot 211 is preferably U-lag easy to process.
Further, fixed frame 10 includes rectangular plate 11 and transferring member 12, and rectangular plate 11 and transferring member 12, which are fixed, to be connected
It connects, rectangular plate 11 with second end face for being fixedly connected, and transferring member 12 is used to provide operating space for electronic tension meter, specifically
Ground is provided with the first operating surface and the second operating surface in transferring member 12, and electronic tension meter, can be the when specifically measuring
It is operated on one operating surface and the second operating surface.
In order to which consolidate suspending cushion is connected on fixed frame 10, it is provided with joint face 111 on rectangular plate 11, connects
The second end face of face 111 and rubber mat ontology 100 fits fixation, later can be using fasteners such as bolt or screws by rubber mat
Ontology 100 and fixed frame 10 are fixed.Suspending cushion is reliably fixed, the accuracy for improving testing result is conducive to.
And above-mentioned transferring member 12 specifically includes at L-shaped the first operation panel 121 and the second operation panel 122 being fixedly connected, the
One operating surface is set on the first operation panel 121, and the second operating surface is set on the second operation panel 122.First operation panel, 121 He
Second operation panel 122 is located at the different directions of suspending cushion, it can be seen from the figure that the first operation panel 121 is located at suspending cushion
Top, and the second operation panel 122 is located at the side of suspending cushion, this kind is provided with conducive to electronic tension meter from different directions
It is detected with position, improves detection efficiency and testing result accuracy.
And preferably, the first operation panel 121 is fixedly connected with a side of rectangular plate 11, the second operation panel 122 with
Another side of rectangular plate 11 is fixedly connected.First operation panel 121 and the second operation panel 122 connect with rectangular plate 11
It connects, is conducive to the transmitting of power.
The connection type of rectangular plate 11 and clamping element 20 can there are many, such as be directly welded and fixed, in the present embodiment,
The two sides of rectangular plate 11 are provided with two engaging lugs 112, offer connecting hole 113 on engaging lug 112.20 outer profile of clamping element
For zigzag shape, including the first plate 21 and the second plate 22 being fixedly connected, the length of the first plate 21 is greater than the second plate 22
Length, the first plate 21 is positioned close to the side of fixed frame 10, and link slot 211 is provided with the first plate 21 far from the second plate
The side of part 22；The both ends of first plate 21 offer perforation, perforation and connecting hole 113 are passed through using bolt, by clamping element
20 and fixed frame 10 connect.
It is connected by screw bolts after being completed convenient for detection, suspended rubber mat is disassembled, sets several words for clamping element 20
Shape, and including the first plate 21 and the second plate 22, the first plate 21 is arranged longer, it is ensured that clamping element 20 has enough
Space is arranged link slot 211, and there are spaces for the connection of clamping element 20 and fixed frame 10, and the second plate 22 is arranged, and
On the one hand the length of second plate 22 can increase the structural strength of entire suspended rubber mat fixture less than the first plate 21, another
Aspect will not excessively increase the weight of entire suspended rubber mat fixture again.
Further, pedestal 30 includes pedestal 31 and pressing plate 32, and pressing plate 32 is vertical with pedestal 31 to be fixedly connected, first through hole
321 and second through-hole 322 be provided on pressing plate 32.Pedestal 31 is used to support pressing plate 32, guarantees the stability of entire pedestal 30, and
Pressing plate 32 is used to limit the freedom degree of suspended rubber mat.The processing is simple for the pedestal 30 of this kind of structure, and cost is lower, and uses and also compare
It is convenient, cost is advantageously reduced, operation ease is increased.
In addition, foregoing explanation mistake, last item 40 is used for limiting plate 30, and specifically, last item 40 further includes that connecting rod 42, first connects
Spindle 43 and the second connecting shaft 44, successively fixation is set in connecting rod 42 for the first connecting shaft 43, engagement shaft 41 and the second connecting shaft 44
On, the first connecting shaft 43 and the second connecting shaft 44 are fixedly installed two limits for being erected in link slot 211 on engagement shaft 41
The width of ring 411, spacing and pressing plate 32 between two stop collars 411 is adapted.Two stop collars 411 are stuck in the two sides of pressing plate 32,
To prevent pedestal 30 from shaking in the detection process, detection accuracy is improved.
In order to preferably play position-limiting action, the radius of stop collar 411 has to be larger than the radius of engagement shaft 41, and in order to keep away
Exempt to interfere and damage suspended rubber mat, the difference of the radius of the radius and engagement shaft 41 of stop collar 411 need to be less than the thickness of pressing plate 32.
As shown in fig. 7, since the specification of the different corresponding suspended rubber mats of vehicle is not quite similar, in order to adapt to more specifications
Suspended rubber mat, transition plates 50 can also be arranged in the present embodiment, and transition plates 50 is fixedly connected with fixed frame 10, and transition plates 50 is used for
It is fixedly connected with the second end face of rubber mat ontology 100.The transition plates 50 is specifically as follows square plate, and thickness can according to need
Setting.Specifically, when the first end face of suspended rubber mat to thinner thickness between second end face, respective thickness can be increased
Transition plates 50 increases it so that suspended rubber mat fixture provided in this embodiment can fix the suspended rubber mat of different-thickness
Versatility saves the expense for developing fixture and consumed manpower.And transition plates 50 can be connect by positioning pin 51 with fixed frame 10,
Circular hole is offered on fixed frame 10, corresponding hole on circular hole and transition plates 50 is passed through using positioning pin 51, so that the two be connected.
Meanwhile in fixed suspended rubber mat, corresponding hole is also offered on suspended rubber mat, positioning pin 51 sequentially passes through fixed frame 10, mistake
Corresponding hole on corresponding hole and suspended rubber mat, suspended rubber mat is finally fixed on cab apron 50.
It will be appreciated by persons skilled in the art that the specification due to suspended rubber mat is not identical, open up thereon corresponding
Hole position it is also different, then the hole on fixed frame 10 and transition plates 50 then changes position accordingly, to adapt to difference
The suspended rubber mat of specification.
Certainly, in order to improve versatility, multiple holes can also be set on fixed frame 10 and transition plates 50, thus in fixation
When the suspended rubber mat of different size, it can according to need and different holes is selected to be fixed.
Be described in detail structure, feature and effect of the invention based on the embodiments shown in the drawings, it is above only
For presently preferred embodiments of the present invention, but the present invention does not limit the scope of implementation as shown in the drawings, all according to conception institute of the invention
The change or equivalent example modified to equivalent change of work should all when not going beyond the spirit of the description and the drawings
Within the scope of the present invention.
Claims (10)
1. a kind of suspended rubber mat fixture, the suspended rubber mat includes rubber mat ontology, fixing bolt and positioning pin, the rubber mat ontology
On be provided with opposite first end face and second end face, the fixing bolt and the positioning pin are both secured to the first end face
On, which is characterized in that the suspended rubber mat fixture includes:
Fixed frame, the fixed frame with the second end face of the rubber mat ontology for being fixedly connected；
Two clamping elements, two clamping elements are fixedly connected with the two sides of the fixed frame respectively, and two clamping elements are close to described
The side of fixed frame offers two link slots；
Pedestal offers first through hole and the second through-hole on the pedestal, and the first through hole is used for across the fixing bolt,
Second through-hole is used for across the positioning pin；
Two last items, one end of two last items are respectively erected on two link slots on one of clamping element, two pressures
The other end of axis is respectively erected on two link slots on another clamping element, is provided on the last item and the pedestal phase
The engagement shaft of cooperation.
2. suspended rubber mat fixture according to claim 1, which is characterized in that the fixed frame includes rectangular plate and transmitting
Part, the rectangular plate are fixedly connected with the transferring member, and the rectangular plate with the second end face for being fixedly connected, institute
It states and is provided with the first operating surface and the second operating surface in transferring member.
3. suspended rubber mat fixture according to claim 2, which is characterized in that it is provided with joint face on the rectangular plate,
The second end face of the joint face and the rubber mat ontology fits fixation.
4. suspended rubber mat fixture according to claim 2, which is characterized in that the transferring member includes at L-shaped is fixedly connected
The first operation panel and the second operation panel, first operating surface is set on first operation panel, second operating surface
It is set on second operation panel；
First operation panel is fixedly connected with a side of the rectangular plate, second operation panel and the square plate
Another side of part is fixedly connected.
5. suspended rubber mat fixture according to claim 2, which is characterized in that the two sides of the rectangular plate are provided with two
Engaging lug offers connecting hole on the engaging lug；
The outer profile of the clamping element is zigzag shape, including the first plate and the second plate being fixedly connected, first plate
Length be greater than the length of second plate, first plate is positioned close to the side of the fixed frame, the connection
Slot is provided with side of first plate far from second plate；
The both ends of first plate offer perforation, the perforation and the connecting hole are passed through using bolt, by the folder
Tight part is connected with the fixed frame.
6. suspended rubber mat fixture according to claim 1, which is characterized in that the pedestal includes pedestal and pressing plate, described
Pressing plate is vertical with the pedestal to be fixedly connected, and the first through hole and second through-hole are provided on the pressing plate.
7. suspended rubber mat fixture according to claim 6, which is characterized in that the last item further includes connecting rod, the first connection
Axis and the second connecting shaft, successively fixation is set in the company for first connecting shaft, the engagement shaft and second connecting shaft
On bar, first connecting shaft and second connecting shaft are for being erected in the link slot, and fixation is set on the engagement shaft
Two stop collars are equipped with, the width of the spacing between two stop collars and the pressing plate is adapted.
8. suspended rubber mat fixture according to claim 7, which is characterized in that the radius of the stop collar is greater than the contact
The radius of axis, and the difference of the radius of the radius of the stop collar and the engagement shaft is less than the thickness of the pressing plate.
9. suspended rubber mat fixture according to claim 1, which is characterized in that it further include transition plates, the transition plates and institute
It states fixed frame to be fixedly connected, the transition plates with the second end face of the rubber mat ontology for being fixedly connected.
10. suspended rubber mat fixture according to claim 1 to 9, which is characterized in that the link slot is U-shaped
Slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379927.4A CN107225520B (en) | 2017-05-25 | 2017-05-25 | Suspended rubber mat fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379927.4A CN107225520B (en) | 2017-05-25 | 2017-05-25 | Suspended rubber mat fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107225520A CN107225520A (en) | 2017-10-03 |
| CN107225520B true CN107225520B (en) | 2019-02-19 |
Family
ID=59934414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710379927.4A Expired - Fee Related CN107225520B (en) | 2017-05-25 | 2017-05-25 | Suspended rubber mat fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107225520B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002046A (en) * | 1974-10-23 | 1977-01-11 | Imperial Chemical Industries Limited | Textile printing apparatus |
| TWM268111U (en) * | 2004-09-08 | 2005-06-21 | Shiau Fu Yuan | Structure for punch rivet set of radiator and heat tube |
| CN104289843B (en) * | 2013-07-15 | 2016-05-04 | 中国二冶集团有限公司 | A kind of electrolytic cell base plate is installed the control method of distortion |
| CN203585172U (en) * | 2013-11-19 | 2014-05-07 | 安徽江淮汽车股份有限公司 | Suspension rubber mat assembly |
| CN106272176B (en) * | 2016-08-31 | 2019-04-19 | 福机机械工业(宁波)有限公司 | A kind of clamping device of automobile engine system mounting bracket |
-
2017
- 2017-05-25 CN CN201710379927.4A patent/CN107225520B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107225520A (en) | 2017-10-03 |
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Granted publication date: 20190219 |