CN206906782U - Projection screen adjusting means is used in teaching - Google Patents
Projection screen adjusting means is used in teaching Download PDFInfo
- Publication number
- CN206906782U CN206906782U CN201720714818.9U CN201720714818U CN206906782U CN 206906782 U CN206906782 U CN 206906782U CN 201720714818 U CN201720714818 U CN 201720714818U CN 206906782 U CN206906782 U CN 206906782U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- connecting rod
- sliding block
- movable base
- adjusting means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model discloses a kind of teaching projection screen adjusting means,Including curtain and first support,Side of the curtain away from projecting apparatus is provided with scissor component,The scissor component includes first connecting rod and second connecting rod,One end of the first connecting rod is hinged with first cylinder,The other end of the first connecting rod is connected with sliding block,The first connecting rod is hinged with the sliding block,One end of the second connecting rod is hinged with second cylinder,The other end of the second connecting rod is connected with supporting plate,The second connecting rod is hinged with the supporting plate,The sliding block is connected with the guide rail that can drive the sliding block linear motion,The guide rail is vertically set,The sliding block is connected with the second actuator that can drive the sliding block linear motion,The bottom of the supporting plate is fixedly connected with movable base,The bottom of the movable base is provided with multiple universal wheels for driving the movable base movement.The utility model can effectively improve Students ' Learning efficiency.
Description
Technical field
The utility model belongs to teaching projection technical field, and in particular to projection screen adjusting means is used in teaching.
Background technology
Now, multimedia teaching is popularized in various classroom teachings, for the classroom for being fitted without curtain, peace
It is still a troublesome thing to fill and fix curtain, and traditional stent-type curtain is because support is using fixed setting side
Formula, therefore be difficult to clearly see the content shown on screen clearly from the student of screen farther out is obtained for seat, and then cause to learn
It is ineffective.
The content of the invention
The utility model can not effectively meet the technical problem of all Students ' Demands for existing teaching projection screen,
It is proposed a kind of teaching that can effectively improve Students ' Learning efficiency projection screen adjusting means.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
Projection screen adjusting means is used in one kind teaching, for receiving the light of projecting apparatus, including curtain and first support, institute
Stating first support includes being internally formed the first cylinder of cavity, for winding the first reel of the curtain, and can drive
First actuator of first spool turns, first reel and first actuator may be contained within first cylinder
In cavity, the clutch end of first actuator is connected with first reel, one end of the curtain and described first
Reel connects, and the other end of the curtain is connected with second support, and the second support includes being internally formed the second of cavity
Cylinder, and for winding the second reel of the curtain, side of the curtain away from projecting apparatus is provided with scissor component, institute
Stating scissor component includes first connecting rod and second connecting rod, and the middle part of the first connecting rod and the middle part of second connecting rod are hinged, described
One end of first connecting rod is hinged with first cylinder, and the other end of the first connecting rod is connected with sliding block, the first connecting rod
It is hinged with the sliding block, one end of the second connecting rod is hinged with second cylinder, the other end connection of the second connecting rod
There is supporting plate, the second connecting rod is hinged with the supporting plate, and the sliding block, which is connected with, can drive the sliding block linear motion
Guide rail, the guide rail are vertically set, and the sliding block is connected with the second actuator that can drive the sliding block linear motion,
The bottom of the supporting plate is fixedly connected with movable base, and the bottom of the movable base is provided with described in multiple drive
The universal wheel of movable base movement.
Preferably, the guide rail includes grooved rail and ball-screw, the grooved rail is vertically set, the ball wire
Thick stick is vertically set, and the ball-screw is arranged in the groove of the grooved rail, the both ends of the grooved rail vertically
Be blind end, the blind end of the grooved rail offers through hole along vertical side, the both ends of the ball-screw with the grooved rail
The through hole of blind end is slidably matched, and the sliding block is connected with the ball-screw by lead screw pair, the sliding block and the grooved rail
It is slidably connected.
Preferably, second actuator is servomotor, clutch end and the rolling of second actuator
Ballscrew connects.
Preferably, be provided with corresponding to second cylinder can be with described second at the top of the movable base
The Buffer Unit of barrel outer surface crimping, the Buffer Unit include spring and baffle plate, and the spring is vertically set, institute
The bottom of spring is stated with being fixedly connected at the top of the movable base, the top of the spring is fixedly connected with the baffle plate,
The baffle plate is horizontally disposed.
Preferably, multiple guidance sets are provided between the bottom of the baffle plate and the top of the movable base,
The guidance set includes hollow lead, and the moving member that can be moved linearly along the lead, the lead edge
Vertical direction is set, and the lead is vertically set, the bottom of the lead and the top of the movable base
It is fixedly connected, the lead is socketed on outside the moving member and is slidably matched with the moving member, the top of the moving member
It is fixedly connected with the bottom of the baffle plate.
Preferably, the moving member includes cylinder, and the guide sleeve being socketed on outside the cylinder, the guide sleeve with
The cylinder is fixedly connected, and the external peripheral surface of the guide sleeve is bonded with the inner circumferential surface of the lead, the cylinder
Vertically set.
Preferably, the guide sleeve be vertically arranged side by side it is multiple.
Preferably, the guide sleeve has vertically been arranged side by side two, two guide sleeves are vertically
Distance be the half of the lead vertically size, one of them described guide sleeve is fixedly connected on the post
The bottom of body, another guide sleeve are fixedly connected on the middle part of the cylinder.
Preferably, the guidance set is provided with two, two guidance sets are respectively arranged at the spring edge
The both sides of horizontal direction, two guidance sets are symmetrical relative to the axle of spring.
Preferably, cylinder is provided between the bottom of the baffle plate and the top of the movable base, the cylinder
Vertically set, with being fixedly connected at the top of the movable base, the cylinder rod of the cylinder connects the cylinder body of the cylinder
Support block is connected to, the cylinder rod of the cylinder is fixedly connected with the support block, and the top of the support block is can be with the baffle plate
Bottom crimping pressure contact portion.
The utility model beneficial effect is:
The utility model teaching projection screen adjusting means is realized to the curtain by setting the scissor component
The vertically regulation of size, and the fine setting to curtain position in the horizontal direction, while the utility model is by setting
Movable base and universal wheel are put, realizes the regulation to curtain position in the horizontal plane, can be according to student's with this
Different demands determine the optimum position of the curtain, and then can improve the learning efficiency of student.
Brief description of the drawings
The content expressed by this specification accompanying drawing and the mark in figure are briefly described below：
Fig. 1 is one of the utility model embodiment overall structure diagram；
Fig. 2 is the partial enlargement structural representation of part A in Fig. 1；
Fig. 3 is the two of the utility model embodiment overall structure diagram；
Fig. 4 is the internal structure schematic diagram of the utility model first support and second support；
1, curtain in figure；2nd, first support；201st, the first cylinder；202nd, the first reel；203rd, the first actuator；3rd, second
Support；301st, the second cylinder；302nd, the second reel；4th, scissor component；401st, first connecting rod；402nd, second connecting rod；5th, sliding block；6、
Supporting plate；7th, guide rail；8th, the second actuator；9th, movable base；10th, universal wheel；11st, Buffer Unit；1101st, spring；1102、
Baffle plate；12nd, guidance set；1201st, lead；1202nd, moving member；12021st, cylinder；12022nd, guide sleeve；13rd, cylinder；14、
Support block.
Embodiment
Below against accompanying drawing, by the description to embodiment, for example involved each of specific embodiment of the present utility model
Mutual alignment and annexation, the effect of each several part and operation principle, manufacture work between the shape of component, construction, each several part
Skill and operate with method etc., are described in further detail, to help those skilled in the art to invention of the present utility model
Design, technical scheme have more complete, accurate and deep understanding.
, it is necessary to explanation in description of the present utility model, term " interior ", " outer ", " on ", " under ", " horizontal direction ",
The orientation or position relationship of instructions such as " vertical directions " are the position relationship shown in based on accompanying drawing 1, are for only for ease of description originally
Utility model and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific
Azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", "
Three " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
Referring to Fig. 1, Fig. 3 and Fig. 4, Fig. 1 is one of the utility model embodiment overall structure diagram, and Fig. 3 is this practicality
Two, Fig. 4 of new embodiment overall structure diagram is the internal structure signal of the utility model first support and second support
Figure.Shown as shown in Figure 1, Figure 3 and Figure 4, projection screen adjusting means is used in one kind teaching, for receiving the light of projecting apparatus, including curtain
Cloth 1 and first support 2, the first support 2 includes being internally formed the first cylinder 201 of cavity, for winding the curtain 1
The first reel 202, and the first actuator 203 that first reel 202 can be driven to rotate, first reel 202 and
First actuator 203 may be contained within the cavity of the first cylinder 201, the clutch end of first actuator 203
It is connected with first reel 202；
Further shown as shown in Figure 1, Figure 3 and Figure 4, one end of the curtain 1 is connected with first reel 202, the curtain
The other end of cloth 1 is connected with second support 3, and the second support 3 includes being internally formed the second cylinder 301 of cavity, and
For winding the second reel 302 of the curtain 1, the side of the curtain 1 away from projecting apparatus is provided with scissor component 4, described
Scissor component 4 includes first connecting rod 401 and second connecting rod 402, the middle part of the first connecting rod 401 with second connecting rod 402
Portion is hinged, and one end of the first connecting rod 401 is be hinged with first cylinder 201, the other end connection of the first connecting rod 401
There is sliding block 5, the first connecting rod 401 is be hinged with the sliding block 5, one end of the second connecting rod 402 and second cylinder 301
Be hinged, the other end of the second connecting rod 402 is connected with supporting plate 6, and the second connecting rod 402 is be hinged with the supporting plate 6, institute
State sliding block 5 and be connected with the guide rail 7 that the sliding block 5 can be driven to move along a straight line, the guide rail 7 is vertically set, the sliding block 5
It is connected with the second actuator 8 that the sliding block 5 can be driven to move along a straight line, the bottom of the supporting plate 6 is fixedly connected with removable
Pedestal 9, the bottom of the movable base 9 are provided with multiple universal wheels 10 for driving the movable base 9 to move.
The utility model teaching projection screen adjusting means is realized to the curtain by setting the scissor component 4
The regulation of the vertically size of cloth 1, and the fine setting to the curtain 1 position in the horizontal direction, while the utility model leads to
Setting movable base 9 and universal wheel 10 are crossed, realizes the regulation to the curtain 1 position in the horizontal plane, being capable of root with this
The optimum position of the curtain 1 is determined according to the different demands of student, and then the learning efficiency of student can be improved.
Further shown as shown in Figure 1, Figure 3 and Figure 4, the guide rail 7 includes grooved rail and ball-screw, the vertical side in grooved rail edge
To setting, the ball-screw is vertically set, and the ball-screw is arranged in the groove of the grooved rail, the grooved rail
Both ends vertically are blind end, and the blind end of the grooved rail offers through hole along vertical side, the ball-screw
Through hole of the both ends with the grooved rail blind end is slidably matched, and the sliding block 5 is connected with the ball-screw by lead screw pair, institute
Sliding block 5 is stated to be slidably connected with the grooved rail.
As preferable, second actuator 8 can be one of servomotor, stepper motor or hydraulic motor
Kind, the clutch end of second actuator 8 is connected with the ball-screw.
In addition, first actuator 203 can be that servomotor, stepper motor or hydraulic motor are one kind of, institute
The clutch end for stating the first actuator 203 is connected with first reel 202.
In addition, the universal wheel 10 is preferably 4, the low cost of whole device can either be ensured with this, and can enough ensures
The stability that movable base 9 moves.
Referring to Fig. 2, Fig. 2 is the partial enlargement structural representation of part A in Fig. 1.As shown in Figure 1 to Figure 3, in order to improve
The security of the vertically stretching motion of curtain 1 is stated, the top of the movable base 9 corresponds to second cylinder
301 are provided with the Buffer Unit 11 that can be crimped with the outer surface of the second cylinder 301, and the Buffer Unit 11 includes spring 1101
And baffle plate 1102, the spring 1101 are vertically set, the bottom of the spring 1101 and the top of the movable base 9
Portion is fixedly connected, and the top of the spring 1101 is fixedly connected with the baffle plate 1102, and the baffle plate 1102 is set in the horizontal direction
Put, the top of the movable base 9 is provided with concave station and boss, and the Buffer Unit 11 is arranged at the movable base 9
Concave station on, the supporting plate 6 is arranged on the boss of the movable base 9.The utility model teaching is adjusted with projection screen
Regulating device ensure that the security of the curtain 1 vertically stretching motion by setting Buffer Unit 11, and then improve
The security of whole device operation.
As preferable, the baffle plate 1102 can be rubber slab, with this can avoid second cylinder 301 with it is described
Baffle plate 1102 produces damage because of excessive velocities when contacting, and sustains damage, further increases whole so as to avoid the curtain 1
Security during individual plant running.
Further as shown in Figure 1 to Figure 3, in order to ensure to state the linear motion of baffle plate 1102 vertically, the baffle plate
Multiple guidance sets 12 are provided between 1102 bottom and the top of the movable base 9, the guidance set 12 includes
Hollow lead 1201, and the moving member 1202 that can be moved linearly along the lead 1201, the edge of lead 1201
Vertical direction is set, and the lead 1201 is vertically set, the bottom of the lead 1201 and the removable base
The top of seat 9 is fixedly connected, and the lead 1201 is socketed on outside the moving member 1202 and slided with the moving member 1202
Coordinate, the top of the moving member 1202 is fixedly connected with the bottom of the baffle plate 1102.The utility model teaching projection screen
Cloth adjusting means can ensure to state the linear motion of baffle plate 1102 vertically, so as to improve by setting guidance set 12
The stability when baffle plate 1102 crimps with the outer surface of the second cylinder 301, further increase whole device operation
Security.
Further as shown in Figure 1 to Figure 3, the moving member 1202 includes cylinder 12021, and is socketed on the cylinder
Guide sleeve 12022 outside 12021, the guide sleeve 12022 are fixedly connected with the cylinder 12021, the guide sleeve 12022
External peripheral surface is bonded with the inner circumferential surface of the lead 1201, and the cylinder 12021 is vertically set.
As preferable, as shown in Figure 1 to Figure 3, the guide sleeve 12022 be vertically arranged side by side it is multiple, with
This improves the stability moved after the baffle plate 1102 contacts with the outer surface of the second cylinder 301.
Specifically, as shown in Figure 1 to Figure 3, the guide sleeve 12022 has vertically been arranged side by side two, two institutes
Half of the distance of guide sleeve 12022 vertically for the lead 1201 vertically size is stated, wherein one
The individual guide sleeve 12022 is fixedly connected on the bottom of the cylinder 12021, and another described guide sleeve 12022 is fixedly connected
In the middle part of the cylinder 12021.
As preferable, as shown in Figure 1 to Figure 3, the guidance set 12 is provided with two, two guidance sets 12
The both sides of the spring 1101 in the horizontal direction are respectively arranged at, two guidance sets 12 are relative to the axle of spring 1101
Line is symmetrical.
Further as shown in Figure 1 to Figure 3, it is steady during receiving projecting apparatus and emitting beam in order to improve the curtain 1
It is qualitative, it is provided with cylinder 13 between the bottom of the baffle plate 1102 and the top of the movable base 9, the cylinder 13 is along perpendicular
Nogata is fixedly connected to setting, the cylinder body of the cylinder 13 with the top of the movable base 9, and the cylinder rod of the cylinder 13 connects
Support block 14 is connected to, the cylinder rod of the cylinder 13 is fixedly connected with the support block 14, and the top of the support block 14 is can be with
The pressure contact portion of the bottom crimping of the baffle plate 1102.The utility model teaching projection screen adjusting means is by setting the gas
Cylinder 13, it is possible to increase stability of the curtain 1 during receiving projecting apparatus and emitting beam, further increase whole device
Security in running.
As preferable, as shown in Figure 1 to Figure 3, the cylinder 13 is provided with two, and two cylinders 13 are set respectively
In the both sides of the spring 1101 in the horizontal direction, two cylinders 13 are relative to the axisymmetrical of spring 1101, simultaneously
The support block 14 is also configured as two corresponding to the cylinder 13.
Further, the support block 14 is arranged to block rubber, and it is steady in moving process to improve baffle plate 1102 with this
It is qualitative, further increase the security of whole device in the process of running.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, as long as employing the various unsubstantialities that methodology and technical scheme of the present utility model are carried out
Improve, or it is not improved by it is of the present utility model design and technical scheme directly apply to other occasions, this practicality newly
Within the protection domain of type.The scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (10)
1. projection screen adjusting means is used in one kind teaching, for receiving the light of projecting apparatus, including curtain (1) and first support
(2), the first support (2) includes being internally formed the first cylinder (201) of cavity, for winding the of the curtain (1)
One reel (202), and the first actuator (203) that first reel (202) can be driven to rotate, first reel
(202) and first actuator (203) may be contained within the first cylinder (201) cavity, first actuator (203)
Clutch end be connected with first reel (202), it is characterised in that：
One end of the curtain (1) is connected with first reel (202), and the other end of the curtain (1) is connected with second
Frame (3), the second support (3) include being internally formed the second cylinder (301) of cavity, and for winding the curtain
(1) the second reel (302), side of the curtain (1) away from projecting apparatus are provided with scissor component (4), the scissor component
(4) first connecting rod (401) and second connecting rod (402), middle part and the second connecting rod (402) of the first connecting rod (401) are included
Middle part is hinged, and one end of the first connecting rod (401) and first cylinder (201) are be hinged, the first connecting rod (401) it is another
One end is connected with sliding block (5), and the first connecting rod (401) is be hinged with the sliding block (5), one end of the second connecting rod (402)
Be hinged with second cylinder (301), the other end of the second connecting rod (402) is connected with supporting plate (6), the second connecting rod
(402) be hinged with the supporting plate (6), the sliding block (5) is connected with the guide rail (7) that the sliding block (5) can be driven to move along a straight line,
The guide rail (7) is vertically set, and the sliding block (5) is connected with second that the sliding block (5) can be driven to move along a straight line and driven
Moving part (8), the bottom of the supporting plate (6) are fixedly connected with movable base (9), and the bottom of the movable base (9) is set
It is equipped with multiple universal wheels (10) for driving the movable base (9) mobile.
2. projection screen adjusting means is used in teaching according to claim 1, it is characterised in that：The guide rail (7) includes groove
Rail and ball-screw, the grooved rail are vertically set, and the ball-screw is vertically set, and the ball-screw is set
It is placed in the groove of the grooved rail, the both ends of the grooved rail vertically are blind end, and the blind end edge of the grooved rail is perpendicular
Nogata offers through hole, and the through hole of the both ends of the ball-screw with the grooved rail blind end is slidably matched, the sliding block (5)
It is connected with the ball-screw by lead screw pair, the sliding block (5) is slidably connected with the grooved rail.
3. projection screen adjusting means is used in teaching according to claim 2, it is characterised in that：Second actuator (8)
For servomotor, the clutch end of second actuator (8) is connected with the ball-screw.
4. projection screen adjusting means is used in teaching according to claim 1, it is characterised in that：The movable base (9)
Top second cylinder (301) is provided with the buffering that can be crimped with the second cylinder (301) outer surface
Component (11), the Buffer Unit (11) include spring (1101) and baffle plate (1102), and the spring (1101) is vertically
Set, the bottom of the spring (1101) at the top of the movable base (9) with being fixedly connected, the top of the spring (1101)
End is fixedly connected with the baffle plate (1102), and the baffle plate (1102) is horizontally disposed.
5. projection screen adjusting means is used in teaching according to claim 4, it is characterised in that：The bottom of the baffle plate (1102)
Multiple guidance sets (12) are provided between portion and the top of the movable base (9), during the guidance set (12) includes
Empty lead (1201), and the moving member (1202) that can be moved linearly along the lead (1201), the lead
(1201) vertically set, the bottom of the lead (1201) with being fixedly connected at the top of the movable base (9),
The lead (1201) is socketed on the moving member (1202) outside and is slidably matched with the moving member (1202), the movement
The top of part (1202) is fixedly connected with the bottom of the baffle plate (1102).
6. projection screen adjusting means is used in teaching according to claim 5, it is characterised in that：Moving member (1202) bag
Include cylinder (12021), and be socketed on the guide sleeve (12022) of the cylinder (12021) outside, the guide sleeve (12022) with
The cylinder (12021) is fixedly connected, the external peripheral surface of the guide sleeve (12022) and the inner circle of the lead (1201)
Perimeter surface is bonded, and the cylinder (12021) is vertically set.
7. projection screen adjusting means is used in teaching according to claim 6, it is characterised in that：The guide sleeve (12022)
Vertically it has been arranged side by side multiple.
8. projection screen adjusting means is used in teaching according to claim 7, it is characterised in that：The guide sleeve (12022)
Two are vertically arranged side by side, the distance of two guide sleeves (12022) vertically is the lead
(1201) vertically the half of size, one of them described guide sleeve (12022) are fixedly connected on the cylinder
(12021) bottom, another guide sleeve (12022) are fixedly connected on the middle part of the cylinder (12021).
9. projection screen adjusting means is used in teaching according to claim 8, it is characterised in that：The guidance set (12) sets
Two are equipped with, two guidance sets (12) are respectively arranged at the both sides of the spring (1101) in the horizontal direction, two institutes
Guidance set (12) is stated relative to the spring (1101) axisymmetrical.
10. the teaching projection screen adjusting means according to any one of claim 4-9, it is characterised in that：The gear
It is provided with cylinder (13) between the bottom of plate (1102) and the top of the movable base (9), the cylinder (13) is along vertical
Direction is set, and the cylinder body of the cylinder (13) at the top of the movable base (9) with being fixedly connected, the cylinder of the cylinder (13)
Bar is connected with support block (14), and the cylinder rod of the cylinder (13) is fixedly connected with the support block (14), the support block (14)
Top be the pressure contact portion that can be crimped with the bottom of the baffle plate (1102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714818.9U CN206906782U (en) | 2017-06-19 | 2017-06-19 | Projection screen adjusting means is used in teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714818.9U CN206906782U (en) | 2017-06-19 | 2017-06-19 | Projection screen adjusting means is used in teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206906782U true CN206906782U (en) | 2018-01-19 |
Family
ID=61284736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720714818.9U Expired - Fee Related CN206906782U (en) | 2017-06-19 | 2017-06-19 | Projection screen adjusting means is used in teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206906782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412824A (en) * | 2018-04-28 | 2019-11-05 | 四川大源文创科技有限公司 | A kind of height adjustment mechanism and the projection screen with the height adjustment mechanism |
-
2017
- 2017-06-19 CN CN201720714818.9U patent/CN206906782U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412824A (en) * | 2018-04-28 | 2019-11-05 | 四川大源文创科技有限公司 | A kind of height adjustment mechanism and the projection screen with the height adjustment mechanism |
| CN110412824B (en) * | 2018-04-28 | 2024-05-10 | 四川大源文创科技有限公司 | Height adjusting mechanism and projection curtain with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104021719B (en) | A kind of planar linkage mechanism combined teaching aid | |
| CN103065542B (en) | Teaching numerical control whiteboard plotter | |
| CN203631009U (en) | Contour line generation demonstration device for disc cam of pointed translating follower | |
| CN206906782U (en) | Projection screen adjusting means is used in teaching | |
| CN108032327B (en) | Robot eyeball mechanism | |
| CN207239517U (en) | A kind of mechanical guide formula automatic welding device | |
| CN202607678U (en) | Eyeball movement mechanism for bionic-robot | |
| CN107798988A (en) | A kind of educational robot with teaching of handwriting function | |
| CN107168000A (en) | Projection screen adjusting means is used in teaching | |
| CN207723267U (en) | A kind of asynchronous clamping arc making equipment of automobile pipe | |
| CN209665351U (en) | Inspecting robot applied to wisdom classroom | |
| CN205914983U (en) | Safe and stable type scraped car disassembles and uses elevating gear | |
| CN202929940U (en) | Mechanical hand | |
| CN107219717A (en) | Projection screen display device is used in teaching | |
| CN207301604U (en) | Projection screen display device is used in teaching | |
| CN106226238B (en) | Support adjusting device of schlieren system and adjusting method thereof | |
| CN209196438U (en) | A kind of support and position regulator for stereoscopic vision shooting | |
| CN206217705U (en) | One kind is convenient to work with liftable unmanned car steering placement table | |
| CN203025970U (en) | Numerical control whiteboard drawing instrument for teaching | |
| CN108080868A (en) | For the assembly equipment of electronic parking actuator housing | |
| CN103331334A (en) | Vehicle frame correcting device and automobile production line | |
| CN107803992A (en) | Linkage and 3D printer | |
| CN209312277U (en) | A kind of driving school's training device for monitoring vehicle | |
| CN206938251U (en) | Printing binder | |
| CN208012872U (en) | A kind of air bag fatigue test device |
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: 20180119 Termination date: 20180619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |