CN207328286U - Climbing ladder apparatus for obstacles removing car - Google Patents
Climbing ladder apparatus for obstacles removing car Download PDFInfo
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- CN207328286U CN207328286U CN201721279994.0U CN201721279994U CN207328286U CN 207328286 U CN207328286 U CN 207328286U CN 201721279994 U CN201721279994 U CN 201721279994U CN 207328286 U CN207328286 U CN 207328286U
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- folding
- climbing ladder
- mounting platform
- engaging lug
- ram
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Abstract
A kind of climbing ladder apparatus for obstacles removing car, include the mounting platform being arranged on the vehicle frame of obstacles removing car, it is arranged to couple and be arranged to extend to the folding climbing ladder on ground with mounting platform rotary type, it is arranged between mounting platform and folding climbing ladder and is arranged to the folding ram coupled respectively with mounting platform and folding climbing ladder radial type, it is arranged to connect with folding ram and hydraulic device of the folding ram in change retracted position in order to control is set, pass through hydraulic device, realize the working status of folding ram, folding climbing ladder is set to be overturn with mounting platform, folding climbing ladder is put on ground, gravity is not relyed on to place folding climbing ladder, therefore the performance of obstacles removing car is improved.
Description
Technical field
It the utility model is related to a kind of climbing ladder apparatus, especially a kind of climbing ladder apparatus for obstacles removing car.
Background technology
The one kind of obstacles removing car as special-purpose vehicle, is widely used in the transportational process of roadside assistance transhipment accident vehicle,
In order to ensure that obstacles removing car completes rescue performance, the application of folding climbing ladder can effectively shorten length of wagon, reduce radius of turn, road
Road traveling is more convenient, and safety, reliably, the climbing ladder apparatus that thus be accordingly used in obstacles removing car is a kind of important automobile component, existing
The climbing ladder apparatus for obstacles removing car in, general roadside assistance obstacles removing car will not possess hydraulic system provide power folding climb
Ladder, realizes that it uses function by gravity, can only realize a placement state, it is impossible to automatically adjusts cat ladder angle according to road conditions
Function, can effectively prevent the stress of hydraulic cylinder, so as to improve the performance of obstacles removing car.
Based on existing technical problem, technical characteristic and technique effect, the application technical solution of the utility model is made.
The content of the invention
The object of the utility model is a kind of climbing ladder apparatus for obstacles removing car.
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of climbing ladder apparatus for obstacles removing car,
Therefore the performance of obstacles removing car is improved.
To reach above-mentioned purpose, the technical scheme adopted by the utility model is that：Include and be arranged on the vehicle frame of obstacles removing car
Mounting platform, be arranged to mounting platform rotary type couple and be arranged to extend to folding climbing ladder on ground, be arranged on
Between mounting platform and folding climbing ladder and be arranged to mounting platform and folding climbing ladder radial type to couple respectively folding ram,
It is arranged to connect with folding ram and hydraulic device of the folding ram in change retracted position in order to control is set.
Due to devising mounting platform, folding climbing ladder, folding ram and hydraulic device, by hydraulic device, realize and fold
The working status of oil cylinder, makes folding climbing ladder be overturn with mounting platform, and folding climbing ladder is put on ground, does not rely on gravity to place folding
Folded cat ladder, therefore improve the performance of obstacles removing car.
The utility model devises, mounting platform, folding climbing ladder, folding oil in the way of additional turning-over support component
Cylinder and hydraulic device are coupled to each other.
The utility model devises, folding ram and hydraulic device and installation in the way of additional hydraulic extensible member
Platform and folding climbing ladder connection.
The utility model devises, and also includes end engaging lug and side engaging lug,
Hydraulic device is arranged to connect with folding ram and the lower end surface portion of mounting platform is provided with side engaging lug,
The side end face portion of mounting platform is provided with end engaging lug and folding climbing ladder is arranged to end engaging lug couple by axis pin,
One end termination of folding ram is arranged to side engaging lug couple by axis pin and the other end termination of folding ram is arranged to
Couple with folding climbing ladder.
The utility model devises, and mounting platform is arranged to plate body and mounting platform is arranged to vehicle frame with obstacles removing car
Connection.
The utility model devises, and folding climbing ladder is arranged to include front end, pars intermedia and rearward end and front end
The termination of pars intermedia is separately positioned on rearward end, front end is arranged to wedge shape body and pars intermedia is arranged to plate body, after
End set is arranged to be distributed in stepwise manner for blocks and rearward end and pars intermedia, and in the rear end of rearward end, face is set
Run through on having ear and under run through ear and on run through ear and under run through ear and be arranged to be in upper and lower arranged distribution, above run through ear and be arranged to
Couple with end engaging lug and under run through ear and be arranged to couple with folding ram.
The utility model devises, and folding ram is arranged to two-segment type telescoping cylinder and is set in the flexible termination of folding ram
Extension is equipped with, connecting hole is provided with the extension of folding ram.
The utility model devises, and holds engaging lug and side engaging lug to be arranged to the seat shape body and folding climbing ladder of dual-gripper ear
Termination be arranged between the dual-gripper ear of end engaging lug, the termination of folding ram be arranged on side engaging lug dual-gripper ear it
Between.
The utility model devises, hydraulic device be arranged to include hydraulic oil container, oil pump, six reversal valves, first section
Only valve, the second shutoff valve and check valve and the output port in hydraulic oil container are arranged to by the second shutoff valve and oil
The input port connection of pump, the output port of oil pump are arranged to connect with the input port of six reversal valves by check valve, and six
The output port of connection reversal valve is arranged to connect with the input port of folding ram and the output port of folding ram is arranged to
Connected with the first oil return port of six reversal valves, the second oil return port of six reversal valves is arranged to by the first shutoff valve
Connected with the oil return port of hydraulic oil container.
The utility model devises, and six reversal valves are arranged to the first spool and six with tetra- positions of B/O/A/4
The B location of connection reversal valve is arranged to stretching state, and the O positions of six reversal valves are arranged to retracted mode and six reversal valves
Location A is arranged to reset state, and 4 positions of six reversal valves are arranged to reproduced state.
The utility model devises, and mounting platform and folding climbing ladder are arranged to according in angle changing shape with folding ram
The mode of state is distributed and mounting platform, folding climbing ladder and folding ram are arranged to according to enhancing with end engaging lug and side engaging lug
The mode of hinged intensity is distributed, and folding ram is arranged to be distributed in the way of fluid amount is controlled with hydraulic device and a folding
Folded cat ladder, a folding ram, an end engaging lug and a side engaging lug are arranged to one group of composition and are in angle changing state
Component, two groups are arranged to be arranged on mounting platform in angle changing status component.
The utility model has technical effect that：Cat ladder folding oil circuit, which is picked out, by six reversal valve II realizes that cat ladder folds
The stretching of oil cylinder III, retract, and regeneration function, has used six reversal valves, its first spool possesses four, tetra- positions of B/O/A/4
The stretching that can realize hydraulic cylinder, retraction, reset, regeneration are put, folding climbing ladder is controlled when working normally by hydraulic operation handle
The operation that reversal valve is lifted, hydraulic valve head is adjusted to when reaching folded state or when folding climbing ladder lands by operation handle
The 4th position of piece, hydraulic cylinder retractable, folding climbing ladder angle can be adjusted according to actual working state at this time.
In the technical program, mounting platform, folding climbing ladder, folding ram and the hydraulic device of turning-over support component are added
For important technical characteristic, in the technical field for the climbing ladder apparatus of obstacles removing car, there is novelty, creativeness and practicality,
Term in the technical program is all that can be explained and understood with patent document in the art.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the structure diagram of the folding climbing ladder 2 of the utility model；
Fig. 3 is the schematic diagram of the hydraulic device 6 of the utility model；
Fig. 4 is the location status schematic diagram of six reversal valves 63 of the utility model；
Fig. 5 is the folded state schematic diagram of the utility model.
Embodiment
According to guidelines for examination, to such as " having ", "comprising" and " comprising " term should used in the utility model
It is interpreted as the presence or addition for not allotting one or more of the other element or its combination.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Fig. 1 be the utility model one embodiment, illustrate the present embodiment with reference to attached drawing, include mounting platform 1,
Folding climbing ladder 2, folding ram 3, end engaging lug 4, side engaging lug 5 and hydraulic device 6,
Hydraulic device 6 is arranged to connect with folding ram 3 and the lower end surface portion of mounting platform 1 is provided with side and is connected
Ear 5, is provided with end engaging lug 4 in the side end face portion of mounting platform 1 and folding climbing ladder 2 is arranged to connect by axis pin and end
Ear 4 couples, and one end termination of folding ram 3 is arranged to side engaging lug 5 couple by axis pin and the other end of folding ram 3
Termination is arranged to couple with folding climbing ladder 2.
In the present embodiment, mounting platform 1 is arranged to plate body and mounting platform 1 is arranged to connect with the vehicle frame of obstacles removing car
Connect.
By mounting platform 1, the support tie point with end engaging lug 4 and side engaging lug 5 is formed, by mounting platform 1, is realized
Connection with holding engaging lug 4, realizes the connection with side engaging lug 5.
In the present embodiment, folding climbing ladder 2 is arranged to include front end 21, pars intermedia 22 and rearward end 23 and front end
Portion 21 and rearward end 23 are separately positioned on the termination of pars intermedia 22, and front end 21 is arranged to wedge shape body and pars intermedia 22 is set
For plate body, rearward end 23 is arranged to blocks and rearward end 23 and pars intermedia 22 are arranged to be distributed in stepwise manner, rear
The rear end face of end 23 be provided with run through ear 24 and under run through ear 25 and on run through ear 24 and under run through ear 25 and be arranged to
In upper and lower arranged distribution, above run through ear 24 be arranged to couple with end engaging lug 4 and under run through ear 25 and be arranged to and folding ram 3
Connection.
By folding climbing ladder 2, the support tie point with end engaging lug 4 and folding ram 3 is formed, by front end 21, is realized
Increase by pars intermedia 22, realizes the support of obstacles removing car, by rearward end 23, realizes increase and connect to the contact area on ground
Intensity is connect, ear 24 is run through from above, the connection with end engaging lug 4 is realized, ear 25 is run through by down, is realized and folding ram 3
Connection.
In the present embodiment, folding ram 3 is arranged to two-segment type telescoping cylinder and is set in the flexible termination of folding ram 3
There is extension, connecting hole is provided with the extension of folding ram 3.
By folding ram 3, the support tie point with folding climbing ladder 2 and side engaging lug 5 is formed, by folding ram 3, is realized
Connection with folding climbing ladder 2, realizes the connection with side engaging lug 5, realizes the folding of folding climbing ladder 2 and mounting platform 1
Connection.
In the present embodiment, engaging lug 4 and side engaging lug 5 is held to be arranged to the seat shape body and folding climbing ladder 2 of dual-gripper ear
Termination be arranged on end engaging lug 4 dual-gripper ear between, the termination of folding ram 3 is arranged on the dual-gripper ear of side engaging lug 5
Between.
By holding engaging lug 4 and side engaging lug 5, form the support with mounting platform 1, folding climbing ladder 2 and folding ram 3 and connect
Contact, by end engaging lug 4, realizes the connection with folding climbing ladder 2, realizes the connection with mounting platform 1, by side engaging lug 5,
The connection with folding ram 3 is realized, the upset for realizing folding climbing ladder 2 with mounting platform 1 is connected.
In the present embodiment, hydraulic device 6 is arranged to include hydraulic oil container 61, oil pump 62, six reversal valves 63, first
Shutoff valve 64, the second shutoff valve 65 and check valve 66 and it is arranged in the output port of hydraulic oil container 61 by second section
Only valve 65 is connected with the input port of oil pump 62, and the output port of oil pump 62 is arranged to by 66 and six reversal valve of check valve
63 input port connection, the output port of six reversal valves 63 are arranged to connect and roll over the input port of folding ram 3
The output port of folded oil cylinder 3 is arranged to connect with the first oil return port of six reversal valves 63, second time of six reversal valves 63
Oily port is arranged to connect with the oil return port of hydraulic oil container 61 by the first shutoff valve 64.
By hydraulic device 6, the support tie point with folding ram 3 is formed, by hydraulic device 6, is realized with folding oil
The connection of cylinder 3, realizes the hydraulic power connection to folding ram 3.
In the present embodiment, six reversal valves 63 are arranged to the first spool and six with tetra- positions of B/O/A/4
The B location of reversal valve 63 is arranged to stretching state, and the O positions of six reversal valves 63 are arranged to retracted mode and six reversal valves
63 location A is arranged to reset state, and 4 positions of six reversal valves 63 are arranged to reproduced state.
By six reversal valves 63, the control in different collapsing lengths to the telescoping cylinder of folding ram 3 is realized.
In the present embodiment, mounting platform 1 and folding climbing ladder 2 are arranged to according in angle changing shape with folding ram 3
The mode of state is distributed and mounting platform 1, folding climbing ladder 2 and folding ram 3 with end engaging lug 4 and side engaging lug 5 be arranged to by
It is distributed according to the mode of the hinged intensity of enhancing, folding ram 3 is arranged to be distributed simultaneously in the way of fluid amount is controlled with hydraulic device 6
And the folding ram 3, one of a folding climbing ladder 2, one end engaging lug 4 and a side engaging lug 5 are arranged to one group of composition and are in
Angle changing status component, two groups are arranged to be arranged on mounting platform 1 in angle changing status component.
Oil pump 62 works, and six reversal valves 63 are inputted with high-voltage oil liquid, and high-voltage oil liquid produces hydraulic pressure to folding ram 3 and moves
Power, by six reversal valves 63, makes folding ram 3 be stretched out and be shunk, Foldable cat ladder 2 is turned over mounting platform 1
Turn, when folding ram 3 is shunk, folding climbing ladder 2 is put on ground, and when folding ram 3 extends, folding climbing ladder 2 is folded in peace
On assembling platform 1.
The utility model has the characteristics that lower：
1st, it is real by hydraulic device 6 due to devising mounting platform 1, folding climbing ladder 2, folding ram 3 and hydraulic device 6
The working status of existing folding ram 3, makes folding climbing ladder 2 be overturn with mounting platform 1, and folding climbing ladder 2 is put on ground, does not rely on weight
Power places folding climbing ladder, therefore improves the performance of obstacles removing car.
2nd, due to devising mounting platform 1, folding climbing ladder 2 and folding ram 3, by folding ram 3, improve folding and climb
The support strength of ladder 2.
3rd, due to devising hydraulic device 6, the stretching different length of folding ram 3 is realized, meets different gradient
Road conditions requirement.
4th, due to devising end engaging lug 4 and side engaging lug 5, enhance folding climbing ladder 2 and the connection of mounting platform 1 is strong
Degree.
5th, due to devising the technical characteristics of the utility model, in the work of the independent and mutual set of technical characteristic
With being shown by experiment, the property indices of the utility model are at least 1.7 times for existing property indices, lead to
Crossing assessment has good market value.
Also other and the mounting platform 1 of additional turning-over support component, folding climbing ladder 2, folding ram 3 and hydraulic device
6 connection technique features are all one of embodiments of the utility model, and each technical characteristic of embodiment described above can be into
The arbitrary combination of row, to meet Patent Law, patent regulation and the requirement of guidelines for examination, no longer to each in above-described embodiment
The embodiment of a all possible combination of technical characteristic is all described.
Therefore in the climbing ladder apparatus technical field for obstacles removing car, it is every include be arranged on the vehicle frame of obstacles removing car
Mounting platform 1, the folding climbing ladder 2 for being arranged to 1 rotary type of mounting platform couple and be arranged to extend on ground, be arranged on
Between mounting platform 1 and folding climbing ladder 2 and it is arranged to the folding coupled respectively with mounting platform 1 and 2 radial type of folding climbing ladder
Oil cylinder 3, be arranged to connect with folding ram 3 and set hydraulic device 6 of the folding ram 3 in change retracted position in order to control
Technology contents it is all within the protection scope of the present utility model.
Claims (10)
1. a kind of climbing ladder apparatus for obstacles removing car, it is characterized in that：Include the mounting platform being arranged on the vehicle frame of obstacles removing car
（1）, be arranged to and mounting platform（1）Rotary type couples and is arranged to extend to the folding climbing ladder on ground（2）, be arranged on peace
Assembling platform（1）And folding climbing ladder（2）Between and be arranged to respectively with mounting platform（1）And folding climbing ladder（2）Radial type couples
Folding ram（3）, be arranged to and folding ram（3）Connect and folding ram in order to control is set（3）In change scale shape
The hydraulic device of state（6）.
2. a kind of climbing ladder apparatus for obstacles removing car, it is characterized in that：Mounting platform in the way of additional turning-over support component
（1）, folding climbing ladder（2）, folding ram（3）And hydraulic device（6）It is coupled to each other.
3. the climbing ladder apparatus according to claim 2 for obstacles removing car, it is characterized in that：According to additional hydraulic extensible member
Mode is folding ram（3）And hydraulic device（6）With mounting platform（1）And folding climbing ladder（2）Connection.
4. the climbing ladder apparatus according to claim 1 or 2 for obstacles removing car, it is characterized in that：Also include end engaging lug（4）
With side engaging lug（5）,
Hydraulic device（6）It is arranged to and folding ram（3）Connect and in mounting platform（1）Lower end surface portion be provided with side company
Lug（5）, in mounting platform（1）Side end face portion be provided with end engaging lug（4）And folding climbing ladder（2）It is arranged to pass through pin
Axis and end engaging lug（4）Connection, folding ram（3）One end termination be arranged to by axis pin and side engaging lug（5）Couple and
Folding ram（3）Other end termination be arranged to and folding climbing ladder（2）Connection.
5. the climbing ladder apparatus according to claim 4 for obstacles removing car, it is characterized in that：Mounting platform（1）It is arranged to tabular
Body and mounting platform（1）It is arranged to be connected with the vehicle frame of obstacles removing car.
6. the climbing ladder apparatus according to claim 4 for obstacles removing car, it is characterized in that：Folding climbing ladder（2）It is arranged to include
There is front end（21）, pars intermedia（22）And rearward end（23）And front end（21）And rearward end（23）It is separately positioned on pars intermedia
（22）Termination, front end（21）It is arranged to wedge shape body and pars intermedia（22）It is arranged to plate body, rearward end（23）Set
For blocks and rearward end（23）And pars intermedia（22）It is arranged to be distributed in stepwise manner, in rearward end（23）Rear end face
It is provided with and runs through ear（24）Run through ear with（25）Run through ear on and（24）Run through ear with（25）It is arranged in row up and down
Column distribution, above runs through ear（24）It is arranged to and end engaging lug（4）Couple and under run through ear（25）It is arranged to and folding ram（3）
Connection.
7. the climbing ladder apparatus according to claim 4 for obstacles removing car, it is characterized in that：Folding ram（3）It is arranged to two sections
Formula telescoping cylinder and in folding ram（3）Flexible termination be provided with extension, in folding ram（3）Extension on be provided with
Connecting hole.
8. the climbing ladder apparatus according to claim 4 for obstacles removing car, it is characterized in that：Hold engaging lug（4）With side engaging lug
（5）It is arranged to the seat shape body and folding climbing ladder of dual-gripper ear（2）Termination be arranged on end engaging lug（4）Dual-gripper ear it
Between, folding ram（3）Termination be arranged on side engaging lug（5）Dual-gripper ear between.
9. the climbing ladder apparatus according to claim 4 for obstacles removing car, it is characterized in that：Hydraulic device（6）It is arranged to include
There is hydraulic oil container（61）, oil pump（62）, six reversal valves（63）, the first shutoff valve（64）, the second shutoff valve（65）And list
To valve（66）And in hydraulic oil container（61）Output port be arranged to by the second shutoff valve（65）With oil pump（62）It is defeated
Inbound port connects, oil pump（62）Output port be arranged to pass through check valve（66）With six reversal valves（63）Input port connect
It is logical, six reversal valves（63）Output port be arranged to and folding ram（3）Input port connection and folding ram（3）'s
Output port is arranged to and six reversal valves（63）The first oil return port connection, six reversal valves（63）The second oil return port
It is arranged to by the first shutoff valve（64）With hydraulic oil container（61）Oil return port connection,
Or six reversal valve（63）It is arranged to the first spool and six reversal valves with tetra- positions of B/O/A/4（63）B
Position is arranged to stretching state, six reversal valves（63）O positions be arranged to retracted mode and six reversal valves（63）A positions
Install and be set to reset state, six reversal valves（63）4 positions be arranged to reproduced state.
10. the climbing ladder apparatus according to claim 4 for obstacles removing car, it is characterized in that：Mounting platform（1）And folding climbing ladder
（2）With folding ram（3）It is arranged to be distributed in the way of in angle changing state and mounting platform（1）, folding climbing ladder
（2）And folding ram（3）With holding engaging lug（4）With side engaging lug（5）It is arranged to be distributed in the way of the hinged intensity of enhancing, rolls over
Folded oil cylinder（3）With hydraulic device（6）It is arranged to be distributed in the way of fluid amount is controlled and a folding climbing ladder（2）, one
Folding ram（3）, an end engaging lug（4）With a side engaging lug（5）It is arranged to one group of composition and is in angle changing state portion
Part, two groups are arranged to be arranged in mounting platform in angle changing status component（1）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721279994.0U CN207328286U (en) | 2017-09-30 | 2017-09-30 | Climbing ladder apparatus for obstacles removing car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721279994.0U CN207328286U (en) | 2017-09-30 | 2017-09-30 | Climbing ladder apparatus for obstacles removing car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207328286U true CN207328286U (en) | 2018-05-08 |
Family
ID=62366910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721279994.0U Expired - Fee Related CN207328286U (en) | 2017-09-30 | 2017-09-30 | Climbing ladder apparatus for obstacles removing car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207328286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292024A (en) * | 2018-10-31 | 2019-02-01 | 林雯臻 | A kind of new-energy automobile Simple transformed trailer |
| CN109969066A (en) * | 2019-04-10 | 2019-07-05 | 吴婷婷 | One kind exempting from traction and folds breakdown trailer device |
-
2017
- 2017-09-30 CN CN201721279994.0U patent/CN207328286U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292024A (en) * | 2018-10-31 | 2019-02-01 | 林雯臻 | A kind of new-energy automobile Simple transformed trailer |
| CN109969066A (en) * | 2019-04-10 | 2019-07-05 | 吴婷婷 | One kind exempting from traction and folds breakdown trailer device |
| CN109969066B (en) * | 2019-04-10 | 2021-04-06 | 吴婷婷 | Exempt from to pull folding rescue trailer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20180930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |