CN107068014A - A kind of advertising board fixer - Google Patents
A kind of advertising board fixer Download PDFInfo
- Publication number
- CN107068014A CN107068014A CN201710323241.3A CN201710323241A CN107068014A CN 107068014 A CN107068014 A CN 107068014A CN 201710323241 A CN201710323241 A CN 201710323241A CN 107068014 A CN107068014 A CN 107068014A
- Authority
- CN
- China
- Prior art keywords
- groove
- billboard
- slide unit
- seated
- bar
- 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.)
- Pending
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F15/02—Bills, posters, or the like therefor
- G09F15/025—Poster carriers, i.e. devices for holding temporarily posters in order to transfer and apply them onto flat vertical surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
A kind of advertising board fixer, including body and billboard, organism bottom is fixed with pole, pole bottom is provided with base, cavity is provided with body, the first loose slot that left and right is expanded is provided with cavity bottom wall, the second loose slot that left and right is expanded is provided with first activity groove bottom wall, in second loose slot can left and right be moveably mounted movable block, screw thread, which coordinates, in movable block is provided with stud, stud left end is movably installed in the second loose slot left end wall, right-hand member is connected with the power set being fixedly mounted in the second loose slot right-hand member wall, in first loose slot can left and right be moveably mounted slide unit, slide unit is fixedly connected with movable block, slide unit right-hand member is installed with protrusive board, the engaging bar that left and right is expanded is provided with protrusive board, the beginning is provided with slide unit towards the first right pushing groove, it is located at both sides equity above and below the first pushing groove in slide unit and is provided with the beginning towards the second right pushing groove, logical conjunction groove is provided between first pushing groove and the second pushing groove, logical close in groove is movably provided with fluted disc.
Description
Technical field
The present invention relates to billboard technologies field, and in particular to a kind of advertising board fixer.
Background technology
At present, the use of billboard is more and more extensive, often can see that for publicity in some urban road overhead
Advertising board device, yet with billboard publicity have it is ageing, so in order to reach that preferable the effect of publicity need to be to advertisement
Board is changed, and existing advertising board device is in order to reach higher steadiness, and the mode that generally can all use bolt to fasten is entered
Row is fixed, but the fixed form being fastened by bolts, although can reach higher steadiness, but when installing with dismounting, all
It need to be installed or removed by extracting tools such as screwdrivers, its disassembly process is relatively complicated laborious and has a strong impact on dismounting effect
, there is larger drawback, it is necessary to improve in rate.
The content of the invention
It is an object of the invention to provide a kind of advertising board fixer and its application method, prior art can be overcome
Drawbacks described above.
According to the present invention, a kind of advertising board fixer of apparatus of the present invention, including body and billboard, the body bottom
Portion is fixed with pole, and the pole bottom is provided with to be provided with cavity, the cavity bottom wall in base, the body and is provided with
The second loose slot that left and right is expanded, described second are provided with the first loose slot that left and right is expanded, the first activity groove bottom wall
In loose slot can left and right be moveably mounted in movable block, the movable block screw thread and coordinated stud, the stud left end are installed
It is movably installed in the second loose slot left end wall, right-hand member is with being fixedly mounted in the second loose slot right-hand member wall
Power set are connected, in first loose slot can left and right be moveably mounted slide unit, the slide unit is fixed with the movable block
Connection, the slide unit right-hand member is installed with and the engaging bar that left and right is expanded is provided with protrusive board, the protrusive board, is set in the slide unit
Being equipped with the beginning pushes towards right first and is located at both sides equity above and below the described first pushing groove in groove, the slide unit and is provided with beginning court
Right second pushes groove, and logical close is provided between the first pushing groove and the second pushing groove can in groove, the logical conjunction groove
It has been moveably mounted on the outside of fluted disc, the fluted disc and has been insinuated into the second pushing groove, described first pushes activity peace in groove
Equipped with push strut, the first toothed chain bar being connected with the fluted disc, described second are provided with the push strut upper and lower end face
Push in groove can left and right be moveably mounted and be seated bar, the bar that is seated is towards being provided with and the tooth on the end face of the fluted disc
Second toothed chain bar of disk, the end face for being seated the remote fluted disc of bar is provided with locking slot, and the bar right-hand member that is seated is provided with
The locking device coordinated with the locking slot is provided with first oblique surface, the billboard.
Further technical scheme, the locking device includes being arranged in the billboard left side and being seated with described
Bar mutually to be seated groove and with the groove in succession for being seated groove intercommunication, be movably installed with locking arm in the groove in succession, it is described
Locking arm lower end is provided with the second oblique surface being engaged with first oblique surface, the groove in succession and is installed with first
Elastic component, first elastic component is fixedly connected with the locking arm, and first elastic component is to by second oblique surface
Pulling buckle device is additionally provided with to described be seated in groove, the billboard is entered.
Further technical scheme, the pulling buckle device includes being arranged on the strip grooves of in the billboard and left and right expansion
And the connecting pole in the strip grooves is movably arranged on, the strip grooves right-hand member is provided with the beginning towards right pilot slot, described
Projection is movably installed with pilot slot, the projection is fixedly connected with the connecting pole, the projection right-hand member is fixedly installed hand
By ring, the projection left end is installed with the second elastic component, and second elastic component is the projection to be stretched to the left, institute
The middle end slot that strip grooves described in intercommunication and the groove in succession are additionally provided with billboard is stated, the connecting pole left end is fixed with set
Rope, the noose left end is fixedly connected by taking turns transfer part with the locking arm.
Further technical scheme, the billboard bottom wall left end is provided with the slot being engaged with the engaging bar.
The side groove being connected with the slide unit is provided with further technical scheme, the cavity left end wall.
Further technical scheme, is fixedly connected between the push strut left end wall and the first pushing groove left end wall
3rd elastic component, the push strut right-hand member is fixedly installed push plate.
The beneficial effects of the invention are as follows：
1. apparatus of the present invention are when in use, billboard left end is pushed in cavity, and make slot with engage bar coordinate and incite somebody to action
Billboard left end is pushed on protrusive board, when billboard is constantly promoted to the left, and billboard can will push against plate and promote to the left, push plate to
During left slip, it can drive and be seated bar and stretch out the second pushing groove to the right, in billboard left side constantly during, be seated bar
It can be inserted into and be seated in groove, and the first oblique surface can act on the second oblique surface, and by locking arm top pressure into groove in succession, and insert
Tight bar mutually continues after sliding to the right to being seated groove, and locking arm can be inserted into locking slot in the presence of the first elastic component, work as lock
When tight arm is inserted into locking slot, push plate left side and slide unit are offseted and billboard can not be promoted to the left, and locking arm and lock
Tight groove is engaged, and therefore, billboard is fixedly connected with slide unit；
2. starting after power set, power set driving movable block is slided to the left, because billboard is fixedly connected with slide unit, therefore
Slide unit can drive billboard to slide to the left, and after slide unit slides into the groove of side to the left, billboard is pulled completely into cavity, from
And be conveniently pushed into, and during push-in, billboard remains fixed with slide unit, and the screw thread of movable block and stud
Coordinate, billboard can be made stably to fix in cavity, steadiness during so as to improve fixed；
3. power set drive stud is rotated backward, slide unit can be driven to slide to the right, and slide unit promotes billboard to slide to the right,
When slide unit slides into low order end to the right, take ring is right to pull out in hand, hand is taken annulus to move noose and tensed to the right, and noose can drive locking
Arm leaves locking slot and is retracted in groove in succession, so as to allow billboard to be taken out from cavity, unclamps hand and takes after ring, hand take ring with
And locking arm can return to original state again, so that convenient use next time；
4. apparatus of the present invention are simple in construction, stable, fixed, Fast Installation and dismounting can be realized, when improving fixed
Simplicity when steadiness and dismounting and change.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical scheme of the prior art
The accompanying drawing used required in technology description is briefly described, it should be apparent that, drawings in the following description are only invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 be the present invention a kind of advertising board fixer in body structural representation.
Fig. 2 be the present invention a kind of advertising board fixer in billboard structural representation.
Fig. 3 is Fig. 1 direction of arrow structural representation.
Fig. 4 is the mplifying structure schematic diagram of region of interest in Fig. 1.
Fig. 5 is structural representation when billboard has just been pushed into body.
Fig. 6 is structural representation when billboard is pushed fully into body.
Fig. 7 is a kind of overall structure diagram of advertising board fixer of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically is chatted
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
As shown in figs. 1-7, a kind of advertising board fixer of the invention, including body 1 and billboard 2, the bottom of body 1
Portion is fixed with pole 101, and the bottom of pole 101 is provided with base 102, the body 1 and is provided with cavity 10, the cavity
The first loose slot 12 that left and right is expanded is provided with 10 bottom walls, be provided with that left and right expands in the bottom wall of the first loose slot 12 the
In two loose slots 13, second loose slot 13 can left and right be moveably mounted screw thread in movable block 17, the movable block 17 and matched somebody with somebody
Conjunction is provided with stud 15, and the left end of stud 15 is movably installed in the left end wall of the second loose slot 13, and right-hand member is with consolidating
The power set 14 that Dingan County is mounted in the right-hand member wall of the second loose slot 13 are connected, can left and right activity in first loose slot 12
Ground is provided with slide unit 16, and the slide unit 16 is fixedly connected with the movable block 17, and the right-hand member of slide unit 16 is installed with protrusive board
18, it is provided with the protrusive board 18 in the engaging bar 181 that left and right is expanded, the slide unit 16 and is provided with the beginning and is pushed towards right first
Be located in groove 160, the slide unit 16 described first pushing groove about 160 both sides equity be provided with the beginning towards the second right pushing groove
161, logical close is provided between the first pushing groove 160 and the second pushing groove 161 can in groove 162, the logical conjunction groove 162
Fluted disc 166 is moveably mounted, the outside of the fluted disc 166 is insinuated into described second and pushed in groove 161, and described first pushes groove
It is movably installed with 160 and is provided with what is be connected with the fluted disc 166 on push strut 168, the upper and lower end face of push strut 168
In first toothed chain bar, the second pushing groove 161 can left and right be moveably mounted and be seated bar 19, the bar 19 that is seated is towards described
The second toothed chain bar being connected with the fluted disc 166 is provided with the end face of fluted disc 166, it is described to be seated the remote tooth of bar 19
The end face of disk 166 is provided with locking slot 190, and the right-hand member of bar 19 that is seated is provided with the first oblique surface 191, the billboard 2
It is provided with the locking device coordinated with the locking slot 190.
Valuably, the locking device include be arranged in the left side of billboard 2 and with it is described be seated bar 19 mutually it is right
Be seated groove 24 and with groove 25 in succession for being seated the intercommunication of groove 24, be movably installed with locking arm 27 in the groove in succession 25,
The lower end of locking arm 27 is provided with the second oblique surface 271 being engaged with first oblique surface 191, the groove in succession 25
The first elastic component is installed with, first elastic component is fixedly connected with the locking arm 27, and first elastic component is used to
Second oblique surface 271 is supported to be seated in groove 24, the billboard 2 described in entering and is additionally provided with pulling buckle device.
Valuably, the pulling buckle device includes being arranged on the strip grooves 22 of in the billboard 2 and left and right expansion and living
The dynamic connecting pole 28 being arranged in the strip grooves 22, the right-hand member of strip grooves 22 is provided with the beginning towards right pilot slot 200, institute
State and projection 29 is movably installed with pilot slot 200, the projection 29 is fixedly connected with the connecting pole 28, the right-hand member of projection 29
Hand is fixedly installed by ring 291, the left end of projection 29 is installed with the second elastic component 292, and second elastic component 292 is used
So that the projection 29 to be stretched to the left, strip grooves 22 described in intercommunication and the groove in succession 25 are additionally provided with the billboard 2
Middle end slot 23, the left end of connecting pole 28 is fixed with noose 273, and the left end of noose 273 is by taking turns transfer part 272 and the locking
Arm 27 is fixedly connected.
Valuably, the bottom wall left end of billboard 2 is provided with the slot 21 being engaged with the engaging bar 181.
Valuably, the side groove 11. being connected with the slide unit 16 is provided with the left end wall of cavity 10
Valuably, it is fixedly connected with the 3rd elasticity between the left end wall of push strut 168 and the first pushing left end wall of groove 160
Part 167, the 3rd elastic component 167 is the push strut 168 to be biased to the right, and the right-hand member of push strut 168 is fixed and set
It is equipped with push plate 169.
During original state, the slide unit 16 is located at the bottom wall right-hand member of cavity 10, in the effect of the 3rd elastic component 167
Under, the push strut 168 is biased on the right side of phase, and the bar 19 that is seated is contracted in the second pushing groove 161 completely, the hand
It is contracted in by ring 291 and projection 29 in the presence of second elastic component 292 in the pilot slot 200, and the locking
Arm 27 is seated the direction top pressure of groove 24 and probes into second oblique surface 271 in the presence of first elastic component by direction
Groove 24 is seated to described；
During installation, the left end of billboard 2 is pushed in the cavity 10, and the slot 21 is engaged bar with described
181 coordinate and the left end of billboard 2 are pushed on the protrusive board 18, when the billboard 2 is constantly promoted to the left, described wide
Accuse board 2 push plate 169 can to the left be promoted, when the push plate 169 is slided to the left, due to the fluted disc 166 with it is described
First toothed chain bar and the second toothed chain bar are connected, therefore, and the push strut 168 can drive the fluted disc 166 to send out
It is raw to rotate, and the fluted disc 166 can drive the bar 19 that is seated to stretch out the second pushing groove 161 to the right, in the billboard 2
Left side constantly during, it is described be seated bar 19 can be inserted into it is described be seated in groove 24, and first oblique surface 191
Second oblique surface 271 can be acted on, and by the top pressure of locking arm 27 into the groove in succession 25, and described be seated bar 19
Mutually the groove 24 that is seated is continued after sliding to the right, the locking arm 27 can be inserted into institute in the presence of first elastic component
State in locking slot 190, when the locking arm 27 is inserted into the locking slot 190, the left side of push plate 169 with it is described
Slide unit 16 is offseted and the billboard 2 can not be promoted to the left, and the locking arm 27 is engaged with the locking slot 190, therefore,
The billboard 2 is fixedly connected with the slide unit 16, now starts the power set 14, and the power set 14 drive described
Stud 15 is rotated, and the stud 15 drives the movable block 17 to slide to the left, and the slide unit 16 can drive the billboard 2 to the left
Slide, after the slide unit 16 slides into the side groove 11 to the left, stop the power set 14, now, the billboard 2
It is pulled completely into the cavity 10；
During dismounting and change, start the power set 14, the power set 14 drive the stud 15 to rotate backward, so that institute
Stating stud 15 can drive the slide unit 16 to slide to the right, and the slide unit 16 promotes the billboard 2 to slide to the right, the slide unit
16 when sliding into low order end to the right, stops the power set 14, now, the hand is pulled out to the right by ring 291, the hand is taken
Ring 291 drives the noose 273 to tense to the right, the noose 273 can drive the locking arm 27 leave the locking slot 190 and
It is retracted in the groove 25 in succession, so as to allow the billboard 2 to be taken out from the cavity 10, and unclamps the hand by ring
After 291, the hand takes ring 291 and locking arm 27 to return to original state again.
The beneficial effects of the invention are as follows：Apparatus of the present invention when in use, billboard left end are pushed in cavity, and make card
Close groove billboard left end is pushed on protrusive board with engaging bar cooperation, when billboard is constantly promoted to the left, billboard will can be pushed away
Pressing plate is promoted to the left, when push plate is slided to the left, can be driven and is seated bar and stretch out the second pushing groove to the right, in billboard left side not
It is disconnected to be seated bar during and be inserted into and be seated in groove, and the first oblique surface can act on the second oblique surface, and will locking
Arm top pressure is seated bar and mutually continued to being seated groove after sliding to the right into groove in succession, and locking arm is in the presence of the first elastic component
It can be inserted into locking slot, when locking arm is inserted into locking slot, push plate left side and slide unit offset and billboard can not
Promote to the left, and locking arm is engaged with locking slot, therefore, billboard is fixedly connected with slide unit；
Start after power set, power set driving movable block is slided to the left, because billboard is fixedly connected with slide unit, therefore sliding
Platform can drive billboard to slide to the left, and after slide unit slides into the groove of side to the left, billboard is pulled completely into cavity, so that
Convenient push-in, and during push-in, billboard remains fixed with slide unit, and also the screw thread of movable block and stud is matched somebody with somebody
Close, billboard can be made stably to fix in cavity, steadiness during so as to improve fixed；
When power set drive stud is rotated backward, slide unit can be driven to slide to the right, and slide unit promotes billboard to slide to the right, it is sliding
When platform slides into low order end to the right, take ring is right to pull out in hand, hand is taken annulus to move noose and tensed to the right, and noose can drive locking arm
Leave locking slot and be retracted in groove in succession, so as to allow billboard to be taken out from cavity, unclamp hand and take after ring, hand take ring and
Locking arm can return to original state again, so that convenient use next time；
Apparatus of the present invention are simple in construction, stable, fixed, can realize Fast Installation and dismounting, steady when improving fixed
Simplicity when solidity and dismounting and change.
Embodiment described above, only inventing, but invention protection domain be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection domain of invention.Therefore, the protection domain of invention
It should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of advertising board fixer, including body and billboard, it is characterised in that：The organism bottom is fixed with branch
Bar, the pole bottom is provided with base, and be provided with that left and right expands in cavity, the cavity bottom wall the is provided with the body
Being provided with one loose slot, the first activity groove bottom wall in the second loose slot that left and right is expanded, second loose slot can be left
The right side has been moveably mounted screw thread cooperation in movable block, the movable block and has been provided with stud, and the stud left end is movably installed
In the second loose slot left end wall, right-hand member is connected with the power set being fixedly mounted in the second loose slot right-hand member wall, institute
State in the first loose slot can left and right be moveably mounted slide unit, the slide unit is fixedly connected with movable block, and the slide unit right-hand member is solid
Dingan County, which is equipped with protrusive board, the protrusive board, is provided with the engaging bar that left and right is expanded, and the beginning is provided with the slide unit towards right first
It is located at both sides equity above and below the described first pushing groove in pushing groove, the slide unit and is provided with the beginning towards the second right pushing groove, institute
State and logical conjunction groove is provided between the first pushing groove and the second pushing groove, fluted disc is movably installed in the logical conjunction groove, it is described
It is insinuated into the second pushing groove, is movably installed with the first pushing groove above and below push strut, the push strut on the outside of fluted disc
Be provided with end face in the first toothed chain bar being connected with fluted disc, the second pushing groove can left and right be moveably mounted and be seated
Bar, the bar that is seated is towards the second toothed chain bar being provided with the end face of fluted disc with fluted disc, the end for being seated the remote fluted disc of bar
Face is provided with locking slot, it is described be seated bar right-hand member and be provided with the first oblique surface, the billboard be provided with and locking slot coordinates
Locking device.
2. a kind of advertising board fixer as claimed in claim 1, it is characterised in that：The locking device includes being arranged on institute
State in billboard left side and with it is described be seated bar mutually to be seated groove and with the groove in succession for being seated groove intercommunication, it is described to connect
Locking arm even is movably installed with groove, the locking arm lower end is provided with second be engaged with first oblique surface and tiltedly led
The first elastic component is installed with face, the groove in succession, first elastic component is fixedly connected with the locking arm, described
One elastic component to described be seated in groove, the billboard is entered by second oblique surface to be additionally provided with pulling buckle device.
3. a kind of advertising board fixer as claimed in claim 2, it is characterised in that：The pulling buckle device includes being arranged on institute
The connecting pole stated the strip grooves of in billboard and left and right expansion and be movably arranged in the strip grooves, the strip grooves right-hand member
The beginning is provided with towards right pilot slot, projection is movably installed with the pilot slot, the projection is fixed with the connecting pole to be connected
Connect, the projection right-hand member is fixedly installed hand by ring, and the projection left end is installed with the second elastic component, the billboard
The middle end slot of strip grooves described in intercommunication and the groove in succession is additionally provided with, the connecting pole left end is fixed with noose, the noose
Left end is fixedly connected by taking turns transfer part with the locking arm.
4. a kind of advertising board fixer as claimed in claim 1, it is characterised in that：The billboard bottom wall left end is provided with
The slot being engaged with the engaging bar.
5. a kind of advertising board fixer as claimed in claim 1, it is characterised in that：Be provided with the cavity left end wall with
The side groove that the slide unit is connected.
6. a kind of advertising board fixer as claimed in claim 1, it is characterised in that：The push strut left end wall and described the
The 3rd elastic component is fixedly connected between one pushing groove left end wall, the push strut right-hand member is fixedly installed push plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323241.3A CN107068014A (en) | 2017-05-10 | 2017-05-10 | A kind of advertising board fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323241.3A CN107068014A (en) | 2017-05-10 | 2017-05-10 | A kind of advertising board fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068014A true CN107068014A (en) | 2017-08-18 |
Family
ID=59596506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710323241.3A Pending CN107068014A (en) | 2017-05-10 | 2017-05-10 | A kind of advertising board fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068014A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012012891A1 (en) * | 2012-06-28 | 2014-01-02 | Volkswagen Aktiengesellschaft | Device for connecting two battery modules arranged in rows in traction battery box of electrically driven motor vehicle, has connecting element provided at upper module side, where battery modules are connected with each other at side |
| CN203697022U (en) * | 2013-12-24 | 2014-07-09 | 上海颍盛机械有限公司 | Delicate manipulator gripper |
| CN104066607A (en) * | 2012-03-27 | 2014-09-24 | 台湾立凯绿能移动股份有限公司 | Fixing device group for removable battery of electric vehicle, and locking method thereof |
| CN106410512A (en) * | 2016-11-01 | 2017-02-15 | 方丹 | Industrial power plug and socket mechanism capable of self locking |
| CN106448451A (en) * | 2016-11-01 | 2017-02-22 | 罗建芬 | Traffic sign device convenient to mount and connect |
-
2017
- 2017-05-10 CN CN201710323241.3A patent/CN107068014A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066607A (en) * | 2012-03-27 | 2014-09-24 | 台湾立凯绿能移动股份有限公司 | Fixing device group for removable battery of electric vehicle, and locking method thereof |
| DE102012012891A1 (en) * | 2012-06-28 | 2014-01-02 | Volkswagen Aktiengesellschaft | Device for connecting two battery modules arranged in rows in traction battery box of electrically driven motor vehicle, has connecting element provided at upper module side, where battery modules are connected with each other at side |
| CN203697022U (en) * | 2013-12-24 | 2014-07-09 | 上海颍盛机械有限公司 | Delicate manipulator gripper |
| CN106410512A (en) * | 2016-11-01 | 2017-02-15 | 方丹 | Industrial power plug and socket mechanism capable of self locking |
| CN106448451A (en) * | 2016-11-01 | 2017-02-22 | 罗建芬 | Traffic sign device convenient to mount and connect |
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Application publication date: 20170818 |