CN205928073U - Mechanism is got to high accuracy heavy load fork - Google Patents
Mechanism is got to high accuracy heavy load fork Download PDFInfo
- Publication number
- CN205928073U CN205928073U CN201620953965.7U CN201620953965U CN205928073U CN 205928073 U CN205928073 U CN 205928073U CN 201620953965 U CN201620953965 U CN 201620953965U CN 205928073 U CN205928073 U CN 205928073U
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- swing arm
- roller
- chain
- armstand
- pallet
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Abstract
The utility model discloses a mechanism is got to high accuracy heavy load fork compact structure, occupation space are little, and whole rigidity is good, can provide great moving distance for the work piece, realize getting and transporting high -precision, the heavy load fork of work piece, the during operation, servo motor drive gear rotates, and lower guideway lateral sliding is followed to the swing arm under the drive of gear and rack structure, and the tray is under the drive of chain to 2 times of the swing arm sliding speed speed move to same direction along last guide rail, that is to say, after the swing arm removed the certain distance, distance that tray and work piece removed was 2 times of the swing arm, thereby can be with the work piece convenience, accurately pitch and get and carry and target in place, this fork is got the mechanism and is carried out the transmission through two -stage drive mechanism, and is not only convenient laborsaving on later maintenance, makes the precision of whole mechanism effectively improved in addition, and the servo motor who especially uses has the positioning accuracy height, can provide variable acceleration the characteristic of motion for the transportation of mechanism has finally realized the accurate location to the work piece steadily in the same direction as smooth.
Description
Technical field
The utility model is related to a kind of Cha Qu mechanism, and specifically a kind of automated machine tool being applied to digit ctrol machine tool field adds
The high precision overloading Cha Qu mechanism of work line.
Background technology
Domestic Digit Control Machine Tool processes the mode of operation of commonly used separate unit machine tooling now, and nowadays machining day
Benefit is complicated, and the lathe division of labor is increasingly distinct, and in many cases, single workpiece needs to be made with realizing all of processing by multiple stage lathe
Industry, under this major premise, the problem of circulation inefficiency between lathe for the workpiece increasingly highlights；Furthermore, with people now
The increasingly rise of work cost, few peopleization, the machine tooling pattern of automation are increasingly becoming the developing direction of industry.But it is domestic right
The research of Digit Control Machine Tool streamline is also in the starting stage.
FMS at present（I.e. flexible manufacturing system）Etc. the automated machine tool processing line of digit ctrol machine tool field, how using three-dimensional storehouse
The piler form that storehouse commonly uses, and because the particularity of machine industry is it is impossible to directly apply mechanically the stacking of tiered warehouse facility use
Machine structure, takes especially for horizontal fork, and the Cha Qu mechanism of existing piler form has unreasonable structure, from great, occupancy
Space is big, load-carrying is little, precision is low, mounting and adjusting is inconvenient, the processing and manufacturing technical problem such as difficulty is big, is not suitable for Digit Control Machine Tool
Process this special dimension.
Content of the invention
Technical problem to be solved in the utility model is：For the deficiencies in the prior art, provide a kind of high precision overloading
Cha Qu mechanism, this fork takes that mechanism structure is compact, it is little to take up room, and integral rigidity is good, can be that workpiece provides larger movement travel,
Realize high-precision, the heavily loaded fork of workpiece being taken and transporting.
The utility model solves the technical scheme that adopted of above-mentioned technical problem：A kind of high precision overloading Cha Qu mechanism,
Including pallet, swing arm, two upper rails and two lower guideways, two described upper rails roll and are connected to the two of described swing arm
The top of side, two described lower guideways roll the bottom being connected to the described both sides of swing arm, and two described lower guideways are solid
It is scheduled on loading platform, across being fixed on two described upper rails, described pallet is located at described swing arm to described pallet
Top, the length of described pallet is less than the length of described swing arm, and described two between lower guideway and described swing arm
It is connected by first order transmission mechanism, described first order transmission mechanism includes servomotor, reductor, gear and tooth bar, institute
The servomotor stated is arranged in a motor cabinet, and described motor cabinet is fixed on the bottom of two described lower guideways, described
Reductor is connected with the output end of described servomotor, and described gear is arranged on the output end of described reductor, described
Tooth bar be meshed with described gear, described tooth bar is arranged on the bottom of described swing arm, and described tooth bar is along described
The length direction setting of swing arm, is connected by second level transmission mechanism between described pallet and described loading platform, described
Second level transmission mechanism includes several gear units, and each described gear unit includes chain and the sprocket wheel being meshed, institute
The sprocket wheel stated is arranged on described swing arm, and one end of described chain is fixed on described loading platform, described chain
The other end bypasses the bottom that described sprocket wheel is fixed on described pallet, and described chain sets along the length direction of described swing arm
Put.
During high precision overloading Cha Qu mechanism of the present utility model work, work piece on pallet, servomotor sliding tooth
Wheel rotates, and swing arm slides laterally in the driving lower edge lower guideway of gear and rack structure, and meanwhile, pallet is in the drive of chain
Under, moved along upper rail to same direction with 2 times of swing arm sliding speed of speed that is to say, that working as swing arm to move a spacing
From rear, the distance of pallet and workpiece movement is 2 times of swing arm, thus easily and accurately can pitch to take and convey by workpiece putting in place.
High precision overloading of the present utility model fork takes that mechanism structure is compact, it is little to take up room, and integral rigidity is good, can be workpiece
Larger movement travel is provided, realizes high-precision, the heavily loaded fork of workpiece being taken and transporting.The first order transmission of this heavily loaded Cha Qu mechanism
Mechanism, using servomotor as power source, is driven by rack-and-pinion, and second level transmission mechanism adopts chain sprocket structure
Transmission, not only convenient and strength-saving in later maintenance, and so that the precision of whole mechanism is effectively improved, especially with watch
Take motor to there is positioning precision height, the characteristic of varying accelerated motion can be provided so that the transportation of mechanism is steadily smooth,
Achieve the precise positioning to workpiece eventually.And the tooth bar of first order transmission mechanism is arranged on the bottom of swing arm, its teeth portion down, with
Gear engages, the beneficial effect that the teeth portion of tooth bar is arranged down：Tooth bar can be better protected from by impurity pollution, additionally, when weight
During load, under pallet stretches out state, swing arm might have certain deformation, because tooth bar is mounted in swing arm bottom, therefore
Tooth bar also has certain deformation, and the result that the deformation of tooth bar leads to is only the change of the fit clearance of rack and pinion,
Even running on swing arm does not result in impact.
This Cha Qu mechanism passes through the cooperation of upper/lower guide and swing arm, integral rigidity good it is ensured that deformation in the case of heavy duty
Amount is less, and this fundamentally solves the low shortcoming of conventional stereo warehouse piler precision, and this Cha Qu mechanism meets numerical control machine
The required high-precision requirement of bed processing.And its two upper rails and two lower guideways are split-type design, structure is simple, is easy to
Processing, high in machining efficiency it is easy to clamping, can be easily processed from the higher lathe of machining accuracy, thus improving list
The accuracy class of root guide rail, it is easy to adjust to tolerances such as the depth of parallelism of design requirement, linearity, perpendicularity after heat treatment,
The accuracy class of whole Cha Qu mechanism can be effectively improved.And traditional integral type guide rail, that is, left and right rail is same part, processing
Inconvenience and processing cost is higher, its mating surface with roller inevitably produces thermal deformation after being heat-treated, and in left and right
It is difficult to carry out tolerance adjustment, therefore percent defective is higher, and the split type guide rail of the application can have when guide rail deformation direction is inconsistent
Effect solves these problems.
Preferably, each row being provided with the length direction laying along described swing arm up and down in the both sides of described swing arm
First roller and one ranked second roller, and the top of described swing arm is provided with two rows of the length direction laying along described swing arm
3rd roller, what the length direction that the bottom of described swing arm is provided with along described swing arm was laid two ranked fourth roller, a row
The 3rd roller described in the first described roller and a row and the upper rail phase described in are agreed with, the second roller described in a row
Mutually agree with the lower guideway described in the 4th roller described in a row.Respectively ranked first roller, the second roller, the 3rd roller and
The setting of the 4th roller it is ensured that swing arm, in each position of movement, has enough roller stress, effectively reduce swing arm and
While the frictional resistance of tray motion it is ensured that workpiece each stage transported can stress balance, obtain enough
Support and stable transport.
Preferably, the cross section of described swing arm is H type, described swing arm is by the first armstand, the second armstand and transverse arm
Constitute, the first described armstand is arranged parallel with the second described armstand and is connected by described transverse arm, described first is vertical
The outside of arm and the second described armstand is all provided with one up and down and ranked first roller and and ranked second roller, described the first armstand
It is mounted on one with the top of the second described armstand and ranked third roller, the bottom of the first described armstand and the second described armstand
End is mounted on one and ranked fourth roller.Swing arm adopts the high rigidity design of H type, can effectively reduce pallet and stretch out the downwarp under state
Spend the positioning it is ensured that to the exactly of workpiece on pallet.
Preferably, the inner side of the upper rail described in every offers the first groove, the first described groove is along every institute
The length direction setting of the upper rail stated, the first described groove is relative with often arranging the first described scroll wheel positions, often arranges described
The first roller in some first rollers roll and be connected in the first described groove；The inner side of the lower guideway described in every is opened
Be provided with the second groove, described the second groove along the length direction setting of the lower guideway described in every, described the second groove with
Often arrange the second described scroll wheel positions relatively, often arrange some second rollers in the second described roller roll be connected to described
In second groove.The inner side of upper rail opens up the first groove, the inner side of lower guideway opens up the encirclement structure design of the second groove, from
And swing arm is in each position of movement, in the first groove and the second roller can carry out pure rolling in the second groove to the first roller
Dynamic friction, reduces the frictional resistance in the course of work to greatest extent, is conducive to improving mechanism's operational efficiency.Additionally, upper rail
With lower guideway, the design of the first roller and the second roller is surrounded by concave shape track it is ensured that when pallet stretches out, swing arm with upper
Effective contact between lower guideway, it is to avoid unnecessary sagging led to loss of significance.
Preferably, described second level transmission mechanism includes two gear units, two described gear units are with institute
The center line of the gear stated is symmetrical arranged for symmetry axis.Two symmetrically arranged gear units, achievable swing arm both direction
Transverse movement, and swing arm can move identical stroke to both direction, be easy to loading platform both sides arrange simultaneously lathe or
Workbench storage space is so that the space of automated machine tool processing line is used more effectively.
Preferably, being fixed with the fixing tool of the first chain on described loading platform, the bottom of described pallet is fixed with the
The fixing tool of two chains, one end of described chain is fixed on the fixing tool of the first described chain, the other end of described chain
Bypass described sprocket wheel to be fixed on the fixing tool of the second described chain.
Compared with prior art, the utility model has the advantage of：Disclosed in the utility model, high precision overloading fork takes machine
Structure compact conformation, take up room little, integral rigidity is good, can be that workpiece provides larger movement travel, realize to workpiece high-precision,
Heavy duty fork takes and transports；During work, servomotor driving gear rotates, and swing arm is led under the driving lower edge of gear and rack structure
Rail slides laterally, meanwhile, pallet under the drive of chain, with 2 times of swing arm sliding speed of speed along upper rail to
Move that is to say, that after swing arm moves a certain distance, the distance of pallet and workpiece movement is 2 times of swing arm in one direction, thus
Workpiece easily and accurately can be pitched take and convey and put in place.The first order transmission mechanism of this heavily loaded Cha Qu mechanism is made with servomotor
For power source, it is driven by rack-and-pinion, second level transmission mechanism adopts chain sprocket structure driven, not only tieed up in the later stage
Convenient and strength-saving in shield, and so that the precision of whole mechanism is effectively improved, especially with servomotor there is positioning accurate
Degree is high, can provide the characteristic of varying accelerated motion so that the transportation of mechanism is steadily smooth, finally achieves to workpiece
Precise positioning.
Brief description
Fig. 1 is the side view of high precision overloading Cha Qu mechanism in embodiment；
Fig. 2 is the outside drawing of high precision overloading Cha Qu mechanism in embodiment；
Fig. 3 is the structure elevational schematic of high precision overloading Cha Qu mechanism in embodiment；
Fig. 4 is the top view of high precision overloading Cha Qu mechanism in embodiment；
Fig. 5 is the outside drawing that in embodiment, high precision overloading Cha Qu mechanism pallet stretches out state；
Fig. 6 is the structure cut-away illustration corresponding to Fig. 5；
Fig. 7 is the top view corresponding to Fig. 5.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
The high precision overloading Cha Qu mechanism of embodiment 1, as illustrated, include pallet 1,2, two upper rails 3 and two of swing arm
Root lower guideway 4, two upper rails 3 roll the top of the both sides being connected to swing arm 2, and two lower guideways 4 roll and are connected to swing arm 2
The bottom of both sides, two lower guideways 4 are fixed on loading platform（In figure is not shown）On, pallet 1 is across being fixed on two upper rails 3
On, pallet 1 is located at the top of swing arm 2, and the length of pallet 1 is less than the length of swing arm 2, passes through between two lower guideways 4 and swing arm 2
First order transmission mechanism is connected, and first order transmission mechanism includes servomotor 51, reductor 52, gear 53 and tooth bar 54, servo
Motor 51 is arranged in a motor cabinet 55, and motor cabinet 55 is fixed on the bottom of two lower guideways 4, reductor 52 and servomotor 51
Output end be connected, gear 53 is arranged on the output end of reductor 52, and tooth bar 54 is meshed with gear 53, and tooth bar 54 is arranged on dynamic
The bottom of arm 2, tooth bar 54, along the length direction setting of swing arm 2, passes through second level transmission mechanism phase between pallet 1 and loading platform
Even, second level transmission mechanism includes two gear units, and two gear units are set with the center line of gear 53 for symmetrical axial symmetry
Put, each gear unit includes the chain 61 being meshed and sprocket wheel 62, sprocket wheel 62 is arranged on swing arm 2, loading platform is fixed with
Tool 63 fixed by first chain, and the bottom of pallet 1 is fixed with the second chain and fixes tool 64, and one end of chain 61 is fixed on the first chain
On fixing tool 63, the other end of chain 61 bypasses sprocket wheel 62 and is fixed on the fixing tool 64 of the second chain, and chain 61 is along the length of swing arm 2
The setting of degree direction.
Embodiment 2 high precision overloading Cha Qu mechanism, as illustrated, include pallet 1,2, two upper rails 3 of swing arm and two
Lower guideway 4, two upper rails 3 roll the top of the both sides being connected to swing arm 2, and two lower guideways 4 roll and are connected to the two of swing arm 2
The bottom of side, two lower guideways 4 are fixed on loading platform；The cross section of swing arm 2 is H type, and swing arm 2 is by the first armstand 21, second
Armstand 22 and transverse arm 23 are constituted, and the first armstand 21 arranges parallel with the second armstand 22 and passes through transverse arm 23 and is connected, the first armstand 21
What the length direction being all provided with up and down along swing arm 2 with the outside of the second armstand 22 was laid one ranked first roller 24 and and ranked second
Roller 25, the top of the first armstand 21 and the second armstand 22 is mounted on ranked third rolling along the length direction of swing arm 2 is laid one
Wheel 26, the bottom of the first armstand 21 and the second armstand 22 is mounted on ranked fourth roller along the length direction of swing arm 2 is laid one
27, one ranked first roller 24 be ranked third roller 26 with one and is mutually agreed with a upper rail 3, and one ranked second roller 25 and ranked fourth
Roller 27 is mutually agreed with a lower guideway 4；The inner side of every upper rail 3 offers the first groove 31, and the first groove 31 is along every
The length direction setting of upper rail 3, the first groove 31 is relative with often ranked first roller 24 position, if often ranked first in roller 24
Dry first roller 24 rolls and is connected in the first groove 31；The inner side of every lower guideway 4 offers the second groove 41, the second groove
41 along every lower guideway 4 length direction setting, the second groove 41 is relative with often ranked second roller 25 position, often ranked second roller
Some second rollers 25 in 25 roll and are connected in the second groove 41；Pallet 1 across being fixed on two upper rails 3, pallet 1
Positioned at the top of swing arm 2, the length of pallet 1 is less than the length of swing arm 2, is passed by the first order between two lower guideways 4 and swing arm 2
Motivation structure is connected, and first order transmission mechanism includes servomotor 51, reductor 52, gear 53 and tooth bar 54, and servomotor 51 is pacified
It is contained in a motor cabinet 55, motor cabinet 55 is fixed on the bottom of two lower guideways 4, the output end of reductor 52 and servomotor 51
It is connected, gear 53 is arranged on the output end of reductor 52, and tooth bar 54 is meshed with gear 53, and tooth bar 54 is arranged on the bottom of swing arm 2
Portion, tooth bar 54, along the length direction setting of swing arm 2, is connected by second level transmission mechanism between pallet 1 and loading platform, the second level
Transmission mechanism includes two gear units, and two gear units are symmetrical arranged with the center line of gear 53 for symmetry axis, each biography
Moving cell includes the chain 61 being meshed and sprocket wheel 62, and sprocket wheel 62 is arranged on swing arm 2, loading platform is fixed with the first chain solid
Surely have 63, the bottom of pallet 1 is fixed with the second chain and fixes tool 64, and one end of chain 61 is fixed on the first chain and fixes tool 63
On, the other end of chain 61 bypasses sprocket wheel 62 and is fixed on the fixing tool 64 of the second chain, and chain 61 sets along the length direction of swing arm 2
Put.
During the work of above-mentioned high precision overloading Cha Qu mechanism, work piece on pallet 1,53 turns of servomotor 51 driving gear
Dynamic, swing arm 2 slides laterally in the driving lower edge lower guideway 4 of gear 53 and tooth bar 54 structure, and the second roller 25 is in the second groove 41
In carry out pure rolling friction, meanwhile, pallet 1 under the drive of chain 61, with 2 times of swing arm 2 sliding speed of speed edge
Upper rail 3 moves to same direction, and the first roller 24 carries out pure rolling friction in the first groove 31.When swing arm 2 is mobile certain
After distance, the distance of pallet 1 and workpiece movement is 2 times of swing arm 2, thus can easily and accurately pitch workpiece and taking and be transported to
Position.
Claims (6)
1. a kind of high precision overloading Cha Qu mechanism it is characterised in that：Including pallet, swing arm, two upper rails and two lower guideways,
Two described upper rails roll the top being connected to the described both sides of swing arm, and two described lower guideways roll and are connected to institute
The bottom of the both sides of the swing arm stated, two described lower guideways are fixed on loading platform, and described pallet is described across being fixed on
Two upper rails on, described pallet is located at the top of described swing arm, and the length of described pallet is less than described swing arm
Length, described two are connected by first order transmission mechanism between lower guideway and described swing arm, and the described first order passes
Motivation structure includes servomotor, reductor, gear and tooth bar, and described servomotor is arranged in a motor cabinet, described electricity
Support is fixed on the bottom of two described lower guideways, and described reductor is connected with the output end of described servomotor, institute
The gear stated is arranged on the output end of described reductor, and described tooth bar is meshed with described gear, and described tooth bar is pacified
Be contained in the bottom of described swing arm, described tooth bar along the length direction setting of described swing arm, described pallet with described
Pass through second level transmission mechanism between loading platform to be connected, described second level transmission mechanism includes several gear units, each
Described gear unit includes the chain being meshed and sprocket wheel, and described sprocket wheel is arranged on described swing arm, described chain
One end be fixed on described loading platform, the other end of described chain bypasses described sprocket wheel and is fixed on described pallet
Bottom, described chain is along the length direction setting of described swing arm.
2. a kind of high precision overloading Cha Qu mechanism according to claim 1 it is characterised in that：The both sides of described swing arm are each
Be provided with that the length direction along described swing arm lays up and down one ranked first roller and and ranked second roller, described swing arm
What the length direction that top is provided with along described swing arm was laid two ranked third roller, and the bottom of described swing arm is provided with along institute
What the length direction of the swing arm stated was laid two ranked fourth roller, the first roller described in a row and the 3rd roller described in a row with
Upper rail phase described in one is agreed with, the 4th roller described in the second roller described in a row and a row with described in one under lead
Rail phase is agreed with.
3. a kind of high precision overloading Cha Qu mechanism according to claim 2 it is characterised in that：The cross section of described swing arm
For H type, described swing arm is made up of the first armstand, the second armstand and transverse arm, the first described armstand and the second described armstand
Arrange and pass through described transverse arm parallel to be connected, the outside of the first described armstand and the second described armstand is all provided with up and down
One ranked first roller and ranked second roller, and the top of the first described armstand and the second described armstand is mounted on one and arranges
Three rollers, the bottom of the first described armstand and the second described armstand is mounted on one and ranked fourth roller.
4. a kind of high precision overloading Cha Qu mechanism according to Claims 2 or 3 it is characterised in that：Lead on described in every
The inner side of rail offers the first groove, and described the first groove is along the length direction setting of the upper rail described in every, described
First groove is relative with often arranging the first described scroll wheel positions, and some first rollers often arranged in the first described roller roll even
It is connected in the first described groove；The inner side of the lower guideway described in every offers the second groove, and the second described groove is along often
The length direction setting of the lower guideway described in root, the second described groove is relative with often arranging the second described scroll wheel positions, often arranges
Some second rollers in the second described roller roll and are connected in the second described groove.
5. a kind of high precision overloading Cha Qu mechanism according to claim 1 it is characterised in that：Described second level driver
Structure includes two gear units, and two described gear units are symmetrical arranged with the center line of described gear for symmetry axis.
6. a kind of high precision overloading Cha Qu mechanism according to claim 1 it is characterised in that：Fixing on described loading platform
There is the fixing tool of the first chain, the bottom of described pallet is fixed with the fixing tool of the second chain, and one end of described chain is fixed on
On the fixing tool of the first described chain, the other end of described chain bypasses described sprocket wheel and is fixed on the second described chain admittedly
On fixed tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620953965.7U CN205928073U (en) | 2016-08-26 | 2016-08-26 | Mechanism is got to high accuracy heavy load fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620953965.7U CN205928073U (en) | 2016-08-26 | 2016-08-26 | Mechanism is got to high accuracy heavy load fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205928073U true CN205928073U (en) | 2017-02-08 |
Family
ID=57953799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620953965.7U Withdrawn - After Issue CN205928073U (en) | 2016-08-26 | 2016-08-26 | Mechanism is got to high accuracy heavy load fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205928073U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181545A (en) * | 2016-08-26 | 2016-12-07 | 宁波海天精工股份有限公司 | A kind of high precision overloading Cha Qu mechanism |
| CN106927401A (en) * | 2017-05-16 | 2017-07-07 | 苏州必威物流装备有限公司 | A kind of two-way feeding pallet fork |
| CN108327056A (en) * | 2018-02-24 | 2018-07-27 | 唐山贺祥机电股份有限公司 | A kind of linkage multi-stage telescopic idiosome take-away belt (conveyor) |
| CN112551076A (en) * | 2020-12-14 | 2021-03-26 | 上海新科乾物联技术有限公司 | Track transfer system |
| CN114228589A (en) * | 2021-12-16 | 2022-03-25 | 洛阳和合电子科技有限公司 | Vehicle-mounted electric wheelchair loading device |
-
2016
- 2016-08-26 CN CN201620953965.7U patent/CN205928073U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181545A (en) * | 2016-08-26 | 2016-12-07 | 宁波海天精工股份有限公司 | A kind of high precision overloading Cha Qu mechanism |
| CN106927401A (en) * | 2017-05-16 | 2017-07-07 | 苏州必威物流装备有限公司 | A kind of two-way feeding pallet fork |
| CN108327056A (en) * | 2018-02-24 | 2018-07-27 | 唐山贺祥机电股份有限公司 | A kind of linkage multi-stage telescopic idiosome take-away belt (conveyor) |
| CN108327056B (en) * | 2018-02-24 | 2024-06-04 | 唐山贺祥智能科技股份有限公司 | Linkage multistage telescopic embryo body pickup device |
| CN112551076A (en) * | 2020-12-14 | 2021-03-26 | 上海新科乾物联技术有限公司 | Track transfer system |
| CN114228589A (en) * | 2021-12-16 | 2022-03-25 | 洛阳和合电子科技有限公司 | Vehicle-mounted electric wheelchair loading device |
| CN114228589B (en) * | 2021-12-16 | 2024-05-10 | 洛阳和合电子科技有限公司 | Vehicle-mounted electric wheelchair loading device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20190326 |
|
| AV01 | Patent right actively abandoned |