CN107219717A

CN107219717A - Projection screen display device is used in teaching

Info

Publication number: CN107219717A
Application number: CN201710462717.1A
Authority: CN
Inventors: 冯雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-19
Filing date: 2017-06-19
Publication date: 2017-09-29

Abstract

The invention discloses a kind of teaching projection screen display device, including curtain and first support, the curtain is connected with second support, side of the curtain away from projecting apparatus is provided with lifting assembly, the lifting assembly is horizontally disposed, the lifting assembly includes the first support arm and the second support arm, second support arm is connected with sliding block, side of the curtain away from projecting apparatus is additionally provided with fixed arm, one end of the fixed arm is fixedly connected with first cylinder, the other end of the fixed arm is connected with supporting plate, the sliding block, which is connected with, can drive the guide rail of the sliding block linear motion, the sliding block, which is connected with, can drive the second actuator of 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 to move.The present invention can effectively improve Students ' Learning efficiency.

Description

Projection screen display device is used in teaching

Technical field

The invention belongs to teaching projection technical field, and in particular to projection screen display device is used in one kind 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 uses the side of being fixedly installed due to support Formula, therefore it is difficult to clearly see clearly the content shown on screen from the student of screen farther out is obtained for seat, and then cause study Effect is not good.

The content of the invention

The present invention can not effectively meet the technical problem of all Students ' Demands with projection screen for existing teaching, propose A kind of teaching that can effectively improve Students ' Learning efficiency projection screen display device.

In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：

Projection screen display device is used in one kind teaching, the light for receiving 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 is connected, 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 lifting assembly, institute State lifting assembly horizontally disposed, the lifting assembly includes the first support arm and the second support arm, first support One end of arm is fixedly connected with second cylinder, and the other end of first support arm is fixed with second support arm to be connected Connect, second support arm is located at the top of first support arm, the other end of second support arm is connected with sliding block, institute State the second support arm to be fixedly connected with the sliding block, side of the curtain away from projecting apparatus is additionally provided with fixed arm, described solid Determine that arm is horizontally disposed, one end of the fixed arm is fixedly connected with first cylinder, the other end of the fixed arm Supporting plate is connected with, the fixed arm is fixedly connected with the supporting plate, the sliding block, which is connected with, can drive the sliding block straight line The guide rail of motion, the guide rail is vertically set, and the sliding block, which is connected with, can drive the second of the sliding block linear motion Actuator, the bottom of the supporting plate is fixedly connected with movable base, the bottom of the movable base be provided with it is multiple can Drive the universal wheel of the movable base movement.

Preferably, second support arm is permanent magnet supports arm, first support arm is jib, described second Brace passes through magnetic absorption with first support arm.

Preferably, the sliding block is iron block, second support arm passes through magnetic absorption with the sliding block.

Preferably, integrated connection between second support arm and first support arm.

Preferably, being welded between the sliding block and second support arm.

Preferably, being welded between first support arm and second cylinder.

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 includes 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 fitted with the inner circumferential surface of the lead, the cylinder Vertically set.

Preferably, the guide sleeve has vertically been arranged side by side two, two guide sleeves are vertically Distance for the lead vertically size 1/2nd, one of them described guide sleeve is fixedly connected on the post The bottom of body, another guide sleeve is fixedly connected on the middle part of the cylinder.

Present invention has the advantages that:

Teaching projection screen display device of the present invention is realized to described by setting guide rail, sliding block and lifting assembly The regulation of curtain vertically size, and stability of the curtain vertically in telescopic process is ensure that, simultaneously The present invention realizes the regulation to curtain position in the horizontal plane, with this energy by setting movable base and universal wheel It is enough that the optimum position of the curtain is determined according to the different demands of student, and then the learning efficiency of student can be improved.

Brief description of the drawings

The mark in the content and figure expressed by this specification accompanying drawing is briefly described below：

Fig. 1 is one of overall structure diagram of the embodiment of the present invention；

Fig. 2 is the partial enlargement structural representation of part A in Fig. 1；

Fig. 3 is the two of overall structure diagram of the embodiment of the present invention；

Fig. 4 is the internal structure schematic diagram of first support of the present invention 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, lifting assembly；401st, the first support arm；402nd, the second support arm；5th, it is sliding Block；6th, supporting plate；7th, guide rail；8th, the second actuator；9th, movable base；10th, universal wheel；11st, Buffer Unit；1101st, buffer Spring；1102nd, baffle plate；12nd, guidance set；1201st, lead；1202nd, moving member；12021st, cylinder；12022nd, guide sleeve； 13rd, cylinder；14th, support block；15th, fixed arm.

Embodiment

Below against accompanying drawing, by the description to embodiment, embodiment of the invention such as involved each component Shape, construction, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology Scheme has more complete, accurate and deep understanding.

In the description of the invention, it is necessary to explanation, term " interior ", " outer ", " on ", " under ", " horizontal direction ", " erect Nogata to " etc. instruction orientation or position relationship be based on the position relationship shown in accompanying drawing 1, be for only for ease of description the present invention Described with simplifying, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific orientation structure Make and operate, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " are only used for description Purpose, and it is not intended that indicating or implying relative importance.

Referring to Fig. 1, Fig. 3 and Fig. 4, Fig. 1 is one of overall structure diagram of the embodiment of the present invention, and Fig. 3 is implementation of the present invention Two, Fig. 4 of example overall structure diagram is the internal structure schematic diagram of first support of the present invention and second support.Such as Fig. 1, Fig. 3 With shown in Fig. 4, projection screen display device is used in one kind teaching, the light for receiving projecting apparatus, including curtain 1 and first support 2, the first support 2 includes being internally formed the first cylinder 201 of cavity, the first reel for winding the curtain 1 202, and the first actuator 203 that first reel 202 can be driven to rotate, first reel 202 and first drive Moving part 203 may be contained within the cavity of the first cylinder 201, the clutch end of first actuator 203 and described first Reel 202 is connected；

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 The second reel 302 for winding the curtain 1, the side of the curtain 1 away from projecting apparatus is provided with lifting assembly 4, described Lifting assembly 4 is horizontally disposed, and the lifting assembly 4 includes the first support arm 401 and the second support arm 402, described the One end of one support arm 401 is fixedly connected with second cylinder 301, the other end of first support arm 401 and described the Two support arms 402 are fixedly connected, and second support arm 402 is located at the top of first support arm 401, second support The other end of arm 402 is connected with sliding block 5, and second support arm 402 is fixedly connected with the sliding block 5, and the curtain 1 is away from throwing The side of shadow instrument is additionally provided with fixed arm 15, and the fixed arm 15 is horizontally disposed, one end of the fixed arm 15 and institute State the first cylinder 201 to be fixedly connected, the other end of the fixed arm 15 is connected with supporting plate 6, the fixed arm 15 and the branch Fagging 6 is fixedly connected, and 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, and the guide rail 7 is along vertical side To setting, the sliding block 5 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 It is fixedly connected with movable base 9, the bottom of the movable base 9, which is provided with, multiple drives the movable base 9 to move Dynamic universal wheel 10.

Teaching projection screen display device of the present invention is realized to institute by setting guide rail 7, sliding block 5 and lifting assembly 4 The regulation of the vertically size of curtain 1 is stated, and ensure that stability of the curtain 1 vertically in telescopic process, The present invention is by setting movable base 9 and universal wheel 10 simultaneously, realizes the tune to the curtain 1 position in the horizontal plane Section, the optimum position of the curtain 1 can be determined according to the different demands of student with this, and then can improve the study effect of student Rate.

As preferred, second support arm 402 is permanent magnet supports arm, and first support arm 401 is jib, institute The second support arm 402 is stated with first support arm 401 by magnetic absorption, dismounting is easy to this, and then improve whole dress The operating efficiency put, while the sliding block 5 can be iron block, second support arm 402 is inhaled with the sliding block 5 by magnetic It is attached.

In addition, can be with integrated connection, with this between second support arm 402 and first support arm 401 The stability of whole device structure is improved, while can be welded between the sliding block 5 and second support arm 402.

As preferred, welded between first support arm 401 and second cylinder 301, institute can be improved with this State the stability moved between the second cylinder 301.

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 Two 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 two 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 preferred, 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 one kind of for servomotor, stepper motor or hydraulic motor, 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, be ensure that again The stability that movable base 9 is moved.

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 buffer spring 1101 and baffle plate 1102, the buffer spring 1101 is vertically set, the bottom of the buffer spring 1101 with it is described can The top of mobile foundation 9 is fixedly connected, and the top of the buffer spring 1101 is fixedly connected with the baffle plate 1102, the baffle plate 1102 is horizontally disposed, and the top of the movable base 9 is provided with concave station and boss, and the Buffer Unit 11 is arranged at On the concave station of the movable base 9, the supporting plate 6 is arranged on the boss of the movable base 9.Present invention teaching is used Projection screen display device by setting Buffer Unit 11 to ensure that the security of the curtain 1 vertically stretching motion, And then improve the security of whole device operation.

As preferred, 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.Teaching of the present invention is aobvious with projection screen Showing device ensure that by setting guidance set 12 and state the linear motion of baffle plate 1102 vertically, so as to improve institute Stability when baffle plate 1102 is crimped with the outer surface of the second cylinder 301 is stated, the peace of whole device operation is further increased Quan Xing.

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 is fixedly connected with the cylinder 12021, the guide sleeve 12022 External peripheral surface is fitted with the inner circumferential surface of the lead 1201, and the cylinder 12021 is vertically set.

As preferred, 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 is contacted with the outer surface of the second cylinder 301.

Specifically, as shown in Figure 1 to Figure 3, two, two institutes have vertically been arranged side by side in the guide sleeve 12022 State the distance of guide sleeve 12022 vertically for the lead 1201 vertically size 1/2nd, 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 preferred, 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 buffer spring 1101 in the horizontal direction are respectively arranged at, two guidance sets 12 are relative to the buffering elastic The axisymmetrical of spring 1101.

Further as shown in Figure 1 to Figure 3, receiving steady during projecting apparatus emits beam 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, the top of the support block 14 is can be with The pressure contact portion of the bottom crimping of the baffle plate 1102.Teaching projection screen display device of the present invention is by setting the cylinder 13, it is possible to increase the curtain 1 is receiving the stability during projecting apparatus emits beam, further increase whole device fortune Security during row.

As preferred, 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 buffer spring 1101 in the horizontal direction, two cylinders 13 are relative to the axis pair of buffer spring 1101 Claim, while the support block 14 is also configured as two corresponding to the cylinder 13.

Further, the support block 14 is set 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 present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.This hair Bright protection domain should be determined by the scope of protection defined in the claims.

Claims

1. projection screen display device is used in one kind teaching, the light for receiving projecting apparatus, including curtain (1) and first support (2), the first support (2) includes being internally formed the first cylinder (201) of cavity, and for winding the curtain (1) One reel (202), and the first actuator (203) that first reel (202) can be driven to rotate, first reel And first actuator (203) may be contained within the first cylinder (201) cavity, first actuator (203) (202) 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) includes 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 is provided with lifting assembly (4), the lifting assembly (4) horizontally disposed, the lifting assembly (4) includes the first support arm (401) and the second support arm (402), described the One end of one support arm (401) is fixedly connected with second cylinder (301), the other end of first support arm (401) with Second support arm (402) is fixedly connected, and second support arm (402) is located at the top of first support arm (401), The other end of second support arm (402) is connected with sliding block (5), and second support arm (402) is fixed with the sliding block (5) Connection, side of the curtain (1) away from projecting apparatus is additionally provided with fixed arm (15), and the fixed arm (15) sets in the horizontal direction Put, one end of the fixed arm (15) is fixedly connected with first cylinder (201), the other end connection of the fixed arm (15) Have supporting plate (6), the fixed arm (15) is fixedly connected with the supporting plate (6), the sliding block (5) be connected with can drive it is described The guide rail (7) of sliding block (5) linear motion, the guide rail (7) is vertically set, and the sliding block (5), which is connected with, can drive institute The second actuator (8) of sliding block (5) linear motion is stated, the bottom of the supporting plate (6) is fixedly connected with movable base (9), The bottom of the movable base (9) is provided with multiple universal wheels (10) for driving the movable base (9) mobile.

2. projection screen display device is used in teaching according to claim 1, it is characterised in that：Second support arm (402) be permanent magnet supports arm, first support arm (401) be jib, second support arm (402) with described first Brace (401) passes through magnetic absorption.

3. projection screen display device is used in teaching according to claim 2, it is characterised in that：The sliding block (5) is iron block, Second support arm (402) passes through magnetic absorption with the sliding block (5).

4. projection screen display device is used in teaching according to claim 1, it is characterised in that：Second support arm (402) the integrated connection between first support arm (401).

5. projection screen display device is used in teaching according to claim 4, it is characterised in that：The sliding block (5) with it is described Welded between second support arm (402).

6. the projection screen display device of the teaching according to claim 2 or 4, it is characterised in that：First support arm (401) welded between second cylinder (301).

7. the projection screen display device of the teaching according to any one of claim 1-6, it is characterised in that：It is described removable The top of moving base (9) is provided with corresponding to second cylinder (301) can be with the second cylinder (301) appearance face pressure The Buffer Unit (11) connect, the Buffer Unit (11) includes spring (1101) and baffle plate (1102), spring (1101) edge Vertical direction is set, and the bottom of the spring (1101) at the top of the movable base (9) with being fixedly connected, the spring (1101) top is fixedly connected with the baffle plate (1102), and the baffle plate (1102) is horizontally disposed.

8. projection screen display device is used in teaching according to claim 7, 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 lead (1201) is vertically set, the bottom of the lead (1201) with Be fixedly connected at the top of the movable base (9), the lead (1201) be socketed on the moving member (1202) outside and with The moving member (1202) is slidably matched, and the top of the moving member (1202) is fixed with the bottom of the baffle plate (1102) to be connected Connect.

9. projection screen display device is used in teaching according to claim 8, 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 fitted, and the cylinder (12021) is vertically set.

10. projection screen display device is used in teaching according to claim 9, 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 1/2nd of size, one of them described guide sleeve (12022) is fixedly connected on the cylinder (12021) bottom, another guide sleeve (12022) is fixedly connected on the middle part of the cylinder (12021).