CN108679371A - A kind of heavy duty equipment clamping device - Google Patents
A kind of heavy duty equipment clamping device Download PDFInfo
- Publication number
- CN108679371A CN108679371A CN201810419369.4A CN201810419369A CN108679371A CN 108679371 A CN108679371 A CN 108679371A CN 201810419369 A CN201810419369 A CN 201810419369A CN 108679371 A CN108679371 A CN 108679371A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- bottom plate
- plate
- heavy duty
- threaded rod
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a kind of heavy duty equipment clamping devices, including bottom plate, it is fixedly connected with support column in the middle part of the plate upper surface, one side of the support column far from bottom plate is fixedly connected with placement plate, the upper surface of bottom plate is opened up there are two symmetrical sliding slot, the inside clamping of each sliding slot has been fixedly connected with connecting pole there are two symmetrical sliding block in the middle part of each sliding block upper surface.The heavy duty equipment clamping device, preferably heavy duty equipment is placed, preferably the position of mobile box is slided, to drive two fixed links to be moved, it is firm to carry out clamping to mechanical equipment by two clamping plates, preferably screwed pipe can be driven to carry out slidable adjustment on threaded rod by the operating of motor, to drive connecting rod and clamping plate to carry out the adjusting of height, avoid the problem that clamped height can not be adjusted when clamping, preferably threaded rod can be allowed to be rotated, avoid the problem that causing interim card in the rotation.
Description
Technical field
The present invention relates to heavy-duty machinery technical field, specially a kind of heavy duty equipment clamping device.
Background technology
Heavy-duty machinery refers generally to construction machinery, such as derrick crane, static pile press, construction elevator, diving boring machine, mixes
Solidifying soil mixing station, crawler-mounted excavator, crawler dozer, crawler crane, diesel pile driver, road roller, turntable drilling
Machine, high-speed hoister, vibratory pile drive and extractor, high-pressure rotary spray stake machine and concrete mixer, heavy-duty machinery are common construction
Equipment in heavy duty equipment during installing and using, is easy to happen mobile and shakiness, a kind of clamping is at this moment just needed to fill
It sets firm to carry out clamping to it.
Existing heavy-duty machinery clamping device during use, fix by the height for be easy to causeing clip position, not side
Just it adjusts and uses, the installation and use of mechanical equipment have been seriously affected, for this purpose, we have proposed a kind of clampings of heavy duty equipment
Device, to solve the problems, such as this.
Invention content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the present invention provides a kind of heavy duty equipment clamping device, existing heavy type is solved
Mechanical clamping device is inconvenient to the problem of adjusting use.
（Two）Technical solution
To achieve the above object, the present invention provides the following technical solutions：A kind of heavy duty equipment clamping device, including bottom plate,
Support column is fixedly connected in the middle part of the plate upper surface, one side of the support column far from bottom plate is fixedly connected with placement
The upper surface of plate, the bottom plate is opened up there are two symmetrical sliding slot, and there are two symmetrical for the inside clamping of each sliding slot
Sliding block, be fixedly connected with connecting pole in the middle part of each sliding block upper surface, the top of the bottom plate places that there are two phases
Symmetrical mobile box, and mobile box is located at the lower section of placement plate, one side of the connecting pole far from sliding block described in every group is respectively with two
The bottom surface of a mobile box is fixedly connected, and the madial wall that two mobile boxes are located remotely from each other has been fixedly connected with electric pushrod, and two
The fixation of the middle part of a mobile box one side close to each other is inlaid with position-limiting tube, and the telescopic end of each electric pushrod is equal
Through position-limiting tube and extend to the outside of mobile box, the telescopic end of each electric pushrod respectively with the left side of support column and
The right side of support column is fixedly connected, and the upper surface of each mobile box has been fixedly connected with fixed link, two fixations
The top of bar one side close to each other opens up fluted, and the upper surface of each fixed link has been fixedly connected with fixed bin,
The inside of each fixed bin has been fixedly connected with motor, and the output end of each motor has been fixedly connected with threaded rod,
The middle part of each fixed bin bottom surface offers through-hole, and the upper surface fixation of each fixed link is inlaid with first axle
It holds, each one end of the threaded rod far from motor sequentially passes through through-hole and first bearing and extends to the inside of groove, and
The outer surface of threaded rod is fixedly connected with the inner ring of first bearing, and the inside of each groove is placed with mutually fits with threaded rod
The screwed pipe matched, and screwed pipe is threadedly coupled with threaded rod, the one side that two fixed links are located remotely from each other offers cunning
Road, two screwed pipes, which are located remotely from each other in the middle part of one side, has been fixedly connected with firm bar, and each firm bar is far from spiral shell
One end of line pipe runs through slideway and extends to the outside of fixed link.
Preferably, the inner bottom wall of each groove fixation is inlaid with second bearing, and threaded rod is far from motor one end
Outer surface be fixedly connected with the inner ring of second bearing.
Preferably, the side that two fixed links are located remotely from each other is placed with restriction plate, and two firm bars are mutual
Separate one side is fixedly connected with two restriction plate one sides close to each other respectively.
Preferably, it has been fixedly connected with connecting rod in the middle part of two screwed pipe one sides close to each other, described in two
Connecting rod one side close to each other has been fixedly connected with clamping plate.
Preferably, the upper surface of the placement plate and the upper surface of bottom plate are parallel, and the horizontal length value of placement plate is small
In the horizontal length value of bottom plate.
Preferably, the vertical length value of the mobile box is less than the bottom surface of placement plate to vertical between the upper surface of bottom plate
Length value, the width value of the restriction plate are more than the width value of slideway.
（Three）Advantageous effect
The present invention provides a kind of heavy duty equipment clamping devices, have following advantageous effect：
（1）The heavy duty equipment clamping device, can be more preferable with the use of support column and placement plate by being provided with bottom plate
Heavy duty equipment is placed, by being provided with mobile box, be used cooperatively sliding slot, sliding block and connecting pole, can be more preferable
The position to mobile box slide, to drive two fixed links to be moved, by being provided with electric pushrod, Neng Gougeng
The good operating by electric pushrod drives two fixed links to carry out mobile adjusting toward relative direction, to pass through two clamping plates pair
It is firm that mechanical equipment carries out clamping.
（2）The heavy duty equipment clamping device, by being provided with fixed bin, with the use of motor, threaded rod, through-hole,
Fixed link, first bearing and screwed pipe preferably can drive screwed pipe to be slided on threaded rod by the operating of motor
It adjusts, to drive connecting rod and clamping plate to carry out the adjusting of height, avoids what when clamping clamped height can not adjust from asking
Topic, by being provided with first bearing and second bearing, preferably can allow threaded rod to be rotated, avoid making in the rotation
The problem of at interim card.
Description of the drawings
Fig. 1 is the sectional view of bottom plate front view of the present invention；
Fig. 2 is structure enlargement diagram at A in Fig. 1 of the present invention.
In figure：1 bottom plate, 2 support columns, 3 sliding blocks, 4 sliding slots, 5 placement plates, 6 connecting poles, 7 movement boxes, 8 electric pushrods, 9 the
Two bearings, 10 threaded rods, 11 clamping plates, 12 fixed bins, 13 motors, 14 grooves, 15 fixed links, 16 connecting rods, 17 screwed pipes, 18 are slided
Road, 19 firm bars, 20 restriction plates, 21 through-holes, 22 first bearings, 23 position-limiting tubes.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of heavy duty equipment clamping device, including bottom plate
1, support column 2 is fixedly connected in the middle part of 1 upper surface of bottom plate, and one side of the support column 2 far from bottom plate 1 is fixedly connected with placement plate
5, the upper surface of placement plate 5 is parallel with the upper surface of bottom plate 1, and the horizontal length value of placement plate 5 is less than the level length of bottom plate 1
Angle value can preferably place mechanical equipment and be consolidated, and the upper surface of bottom plate 1 opens up that there are two symmetrical sliding slots 4, each
There are two symmetrical sliding block 3, each sliding block has been fixedly connected with connecting pole 6 in the middle part of 3 upper surface for the inside clamping of sliding slot 4,
There are two symmetrical mobile boxes 7 for the top placement of bottom plate 1, and move the lower section that box 7 is located at placement plate 5, move the vertical of box 7
Length value is less than the bottom surface of placement plate 5 to the vertical length value between the upper surface of bottom plate 1, and the width value of restriction plate 20, which is more than, to be slided
The width value in road 18 can avoid the problem that causing to collide interim card when adjusting mobile, and every group of connecting pole 6 is far from sliding block 3
One side be fixedly connected respectively with the bottom surface of two mobile boxes 7, the madial wall that two mobile boxes 7 are located remotely from each other is fixedly connected with
There are electric pushrod 8, electric pushrod 8 to be also known as linear actuator, is a kind of extension of the electric rotating motivation in configuration aspects, electric pushrod
A kind of 8 novel linear executing agencies being mainly made of mechanisms such as motor bar and control devices, electric pushrod 8 be it is a kind of will be electric
The rotary motion of motivation is changed into the power-driven gear of the straight reciprocating motion of push rod, can be used for various simple or complicated work
As machinery use is executed in skill flow, to realize far distance controlled, centralized control or automatically control, the principle of electric pushrod 8
It is that the rotation motion of motor is in line movement, completes putter action using motor forward/backward rotation, electric pushrod 8 is existing
The middle part fixation of equipment well known to technology, two mobile 7 one sides close to each other of box is inlaid with position-limiting tube 23, each electronic
The telescopic end of push rod 8 runs through position-limiting tube 23 and extends to the outside of mobile box 7, the telescopic end of each electric pushrod 8 respectively with
The left side of support column 2 is fixedly connected with the right side of support column 2, and the upper surface of each mobile box 7 has been fixedly connected with fixation
The top of bar 15, two 15 one sides close to each other of fixed link opens up fluted 14, and the upper surface of each fixed link 15 is solid
Surely it is connected with fixed bin 12, the inside of each fixed bin 12 has been fixedly connected with motor 13, and the output end of each motor 13 is solid
Surely it is connected with threaded rod 10, the middle part of 12 bottom surface of each fixed bin offers through-hole 21, and the upper surface of each fixed link 15 is equal
Fixation is inlaid with first bearing 22, and the one end of each threaded rod 10 far from motor 13 sequentially passes through through-hole 21 and first bearing 22
And the inside of groove 14 is extended to, and the outer surface of threaded rod 10 is fixedly connected with the inner ring of first bearing 22, each groove 14
Inner bottom wall it is fixed be inlaid with second bearing 9, and outer surface of the threaded rod 10 far from 13 one end of motor in second bearing 9
Circle is fixedly connected, and can more efficiently allow threaded rod 10 to be rotated, and avoids the problem that causing interim card in the rotation, often
The inside of a groove 14 is placed with screwed pipe 17 compatible with threaded rod 10, and screwed pipe 17 connects with 10 screw thread of threaded rod
It connects, has been fixedly connected with connecting rod 16 in the middle part of two 17 one sides close to each other of screwed pipe, two connecting rods 16 are close to each other
One side be fixedly connected with clamping plate 11, can preferably carry out that clamping is firm, and two are solid to mechanical equipment by clamping plate 11
The one side that fixed pole 15 is located remotely from each other offers slideway 18, and two screwed pipes 17 are located remotely from each other the fixed company in middle part of one side
It is connected to firm bar 19, each firm one end of bar 19 far from screwed pipe 17 runs through slideway 18 and extends to the outer of fixed link 15
Side, the side that two fixed links 15 are located remotely from each other are placed with restriction plate 20, the one side that two firm bars 19 are located remotely from each other point
It is not fixedly connected, preferably the position of screwed pipe 17 can be limited with two one sides close to each other of restriction plate 20,
Avoid screwed pipe 17 as motor 13 is rotated and influences the efficiency adjusted.
Operation principle：Heavy duty equipment is placed in placement plate 5, motor 13 and municipal power electric connection pass through
Motor 13 drives threaded rod 10 to be rotated, to drive screwed pipe 17 to carry out slidable adjustment on threaded rod 10, by clamping plate 11
It is adjusted to the position for needing to be clamped, by electric pushrod 8 and municipal power electric connection, passes through the retraction of 8 telescopic end of electric pushrod, band
Dynamic mobile box 7 is moved, to drive fixed link 15 and clamping plate 11 to be moved, by clamping plate 11 to heavy duty equipment into
Row clamping is firm.
In conclusion the heavy duty equipment clamping device with the use of support column 2 and is placed by being provided with bottom plate 1
Plate 5 can preferably place heavy duty equipment, by being provided with mobile box 7, with the use of sliding slot 4,3 and of sliding block
Connecting pole 6 can preferably slide the position of mobile box 7, to drive two fixed links 15 to be moved, by setting
It is equipped with electric pushrod 8, preferably two fixed links 15 can be driven to be moved toward relative direction by the operating of electric pushrod 8
It adjusts, is consolidated to carry out clamping to mechanical equipment by two clamping plates 11, by being provided with fixed bin 12, be used cooperatively motor
13, threaded rod 10, through-hole 21, fixed link 15, first bearing 22 and screwed pipe 17 can preferably pass through the operating band of motor 13
Dynamic screwed pipe 17 carries out slidable adjustment on threaded rod 10, to drive connecting rod 16 and clamping plate 11 to carry out the adjusting of height, keeps away
Exempt from the problem of clamped height can not be adjusted when clamping, it, can be more preferable by being provided with first bearing 22 and second bearing 9
Allow threaded rod 10 to be rotated, avoid the problem that causing interim card in the rotation.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of heavy duty equipment clamping device, including bottom plate（1）, it is characterised in that：The bottom plate（1）The middle part of upper surface
It is fixedly connected with support column（2）, the support column（2）Far from bottom plate（1）One side be fixedly connected with placement plate（5）, described
Bottom plate（1）Upper surface open up there are two symmetrical sliding slot（4）, each sliding slot（4）Inside clamping there are two opposite
The sliding block of title（3）, each sliding block（3）Connecting pole has been fixedly connected in the middle part of upper surface（6）, the bottom plate（1）It is upper
There are two symmetrical mobile boxes for side's placement（7）, and mobile box（7）Positioned at placement plate（5）Lower section, connecting pole described in every group
（6）Far from sliding block（3）One side respectively with two mobile boxes（7）Bottom surface be fixedly connected, two mobile boxes（7）Mutually
Separate madial wall has been fixedly connected with electric pushrod（8）, two mobile boxes（7）The middle part of one side close to each other is solid
Surely it is inlaid with position-limiting tube（23）, each electric pushrod（8）Telescopic end run through position-limiting tube（23）And extend to mobile box
（7）Outside, each electric pushrod（8）Telescopic end respectively with support column（2）Left side and support column（2）Right side
Face is fixedly connected, each mobile box（7）Upper surface be fixedly connected with fixed link（15）, two fixed links（15）
The top of one side close to each other opens up fluted（14）, each fixed link（15）Upper surface be fixedly connected with it is solid
Determine box（12）, each fixed bin（12）Inside be fixedly connected with motor（13）, each motor（13）Output
End has been fixedly connected with threaded rod（10）, each fixed bin（12）The middle part of bottom surface offers through-hole（21）, Mei Gesuo
State fixed link（15）Upper surface fixation be inlaid with first bearing（22）, each threaded rod（10）Far from motor（13）'s
One end sequentially passes through through-hole（21）And first bearing（22）And extend to groove（14）Inside, and threaded rod（10）Appearance
Face and first bearing（22）Inner ring be fixedly connected, each groove（14）Inside be placed with and threaded rod（10）Xiang Shi
The screwed pipe matched（17）, and screwed pipe（17）With threaded rod（10）It is threadedly coupled, two fixed links（15）It is located remotely from each other
One side offers slideway（18）, two screwed pipes（17）Be located remotely from each other in the middle part of one side be fixedly connected with it is firm
Bar（19）, each firm bar（19）Far from screwed pipe（17）One end run through slideway（18）And extend to fixed link（15）
Outside.
2. a kind of heavy duty equipment clamping device according to claim 1, it is characterised in that：Each groove（14）
Inner bottom wall fixation be inlaid with second bearing（9）, and threaded rod（10）Far from motor（13）The outer surface of one end and the second axis
It holds（9）Inner ring be fixedly connected.
3. a kind of heavy duty equipment clamping device according to claim 1, it is characterised in that：Two fixed links
（15）The side being located remotely from each other is placed with restriction plate（20）, two firm bars（19）The one side being located remotely from each other respectively with
Two restriction plates（20）One side close to each other is fixedly connected.
4. a kind of heavy duty equipment clamping device according to claim 1, it is characterised in that：Two screwed pipes
（17）It is fixedly connected with connecting rod in the middle part of one side close to each other（16）, two connecting rods（16）Close to each other one
Side has been fixedly connected with clamping plate（11）.
5. a kind of heavy duty equipment clamping device according to claim 1, it is characterised in that：The placement plate（5）'s
Upper surface and bottom plate（1）Upper surface it is parallel, and placement plate（5）Horizontal length value be less than bottom plate（1）Horizontal length value.
6. a kind of heavy duty equipment clamping device according to claim 1, it is characterised in that：The mobile box（7）'s
Vertical length value is less than placement plate（5）Bottom surface to bottom plate（1）Upper surface between vertical length value, the restriction plate（20）
Width value be more than slideway（18）Width value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419369.4A CN108679371A (en) | 2018-05-04 | 2018-05-04 | A kind of heavy duty equipment clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419369.4A CN108679371A (en) | 2018-05-04 | 2018-05-04 | A kind of heavy duty equipment clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108679371A true CN108679371A (en) | 2018-10-19 |
Family
ID=63801905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810419369.4A Pending CN108679371A (en) | 2018-05-04 | 2018-05-04 | A kind of heavy duty equipment clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108679371A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591562A (en) * | 2018-11-29 | 2019-04-09 | 江苏易咖新能源汽车有限公司 | A kind of installing mechanism of electric vehicle energy-saving box |
| CN112050041A (en) * | 2020-08-06 | 2020-12-08 | 北京惠风联合防务科技有限公司 | Single-frame position marker device |
| CN114542915A (en) * | 2022-01-26 | 2022-05-27 | 淮北矿业股份有限公司 | Rock core drilling machine fixing device |
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| CN203907143U (en) * | 2014-04-28 | 2014-10-29 | 苏州倍辰莱电子科技有限公司 | Elevated AOI working platform |
| CN106903468A (en) * | 2017-03-01 | 2017-06-30 | 岳文智 | A kind of turner electric welding machine with fixing function |
| CN206717219U (en) * | 2017-04-25 | 2017-12-08 | 谭清平 | A kind of adjustable wire cutting machine clamping device |
| CN206998514U (en) * | 2017-07-25 | 2018-02-13 | 天津奥强科技有限公司 | Residue cleaning plant after a kind of plastic products are polished with inner surface |
| CN107855842A (en) * | 2017-12-15 | 2018-03-30 | 叶侃 | A kind of valve pipe fitting sanding apparatus |
| CN107864592A (en) * | 2017-10-27 | 2018-03-30 | 陈永 | A kind of clamp-type household electrical appliances heat abstractor |
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2018
- 2018-05-04 CN CN201810419369.4A patent/CN108679371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203907143U (en) * | 2014-04-28 | 2014-10-29 | 苏州倍辰莱电子科技有限公司 | Elevated AOI working platform |
| CN106903468A (en) * | 2017-03-01 | 2017-06-30 | 岳文智 | A kind of turner electric welding machine with fixing function |
| CN206717219U (en) * | 2017-04-25 | 2017-12-08 | 谭清平 | A kind of adjustable wire cutting machine clamping device |
| CN206998514U (en) * | 2017-07-25 | 2018-02-13 | 天津奥强科技有限公司 | Residue cleaning plant after a kind of plastic products are polished with inner surface |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591562A (en) * | 2018-11-29 | 2019-04-09 | 江苏易咖新能源汽车有限公司 | A kind of installing mechanism of electric vehicle energy-saving box |
| CN109591562B (en) * | 2018-11-29 | 2021-09-24 | 江苏易咖新能源汽车有限公司 | Installation mechanism of energy-saving box of electric vehicle |
| CN112050041A (en) * | 2020-08-06 | 2020-12-08 | 北京惠风联合防务科技有限公司 | Single-frame position marker device |
| CN112050041B (en) * | 2020-08-06 | 2022-01-25 | 北京惠风联合防务科技有限公司 | Single-frame position marker device |
| CN114542915A (en) * | 2022-01-26 | 2022-05-27 | 淮北矿业股份有限公司 | Rock core drilling machine fixing device |
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