CN210894980U

CN210894980U - Curtain fixing device for informatization teaching

Info

Publication number: CN210894980U
Application number: CN201922433041.0U
Authority: CN
Inventors: 张世微; 程雁鸿
Original assignee: Hubei Polytechnic Institute
Current assignee: Hubei Polytechnic Institute
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-06-30
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a curtain fixing device is used in information-based teaching, including chassis (1), its characterized in that: be equipped with fixed column (2) on chassis (1), fixed column (2) internal rotation is connected and is equipped with threaded rod (4), states threaded rod (4) screw thread and locate opposite and both ends from middle to both ends and be equipped with nut (5) and nut two (6) respectively, is equipped with dead lever (10) on nut (5), is equipped with dead lever two (11) on nut two (6), bar through-hole (9) all extend with dead lever two (11) dead lever one (10), is equipped with T type recess (12) on dead lever one (10), sliding connection T type slider (13) in T type recess (12). The beneficial effects of the utility model reside in that: the whole steadiness is good, and the distance between the stores pylon is adjusted promptly through the removal between T type slider and the T type recess to and the distance between dead lever one, two each other, adapt to the width and the length of different curtains, satisfy the projection demand.

Description

Curtain fixing device for informatization teaching

Technical Field

The utility model relates to a teaching equipment technical field specifically indicates a curtain fixing device is used in information-based teaching.

Background

The projecting apparatus is generally used in present university's teaching and imparts knowledge to students, great reduction the teacher time of writing on the blackboard, also improved the quality of teaching simultaneously. When projection equipment is used for projection, a projection curtain is indispensable, different space projection curtains are different in selection, for example, a wide-viewing-angle and low-gain screen is suitable for occasions with more people to watch or transversely watch, a narrow-viewing-angle and high-gain screen is suitable for watching in a long and narrow space, and a screen with proper gain is selected at the same time, so that the contrast of the screen is improved, the gray level of an image is increased, the color is bright, and the observability of the image is improved.

The conventional suspended projection screen is fixed on a wall and can not move generally, and compared with the conventional suspended projection screen, the floor-pulling screen is small in limitation of the field application range, simple to use, free to fold and unfold and does not occupy the field, so that the suspended projection screen is convenient to carry. The commonly used floor-pulling curtain is provided with a gas spring and a scissor type mechanism, metal support rods or oil pressure rods are arranged on two sides of the screen structure, the projection screen is unfolded through the support rods or the oil pressure rods, the unfolding structure of the floor-pulling curtain is heavy, the floor-pulling curtain is easily blown down by wind, and the stability is not high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to solve above-mentioned problem, provide an information-based teaching curtain fixing device who improves ground draw curtain fixed stability.

In order to solve the technical problem, the utility model provides a technical scheme does: a curtain fixing device for information teaching comprises an underframe, wherein a fixing column is arranged on the underframe, the inside of the fixing column is of a hollow structure, a cover plate is arranged on the fixing column, a threaded rod is arranged below the cover plate and above the underframe and is positioned in the fixing column in a rotary connection manner, threads of the threaded rod are opposite from the middle to two ends, one end of the threaded rod is provided with a first nut in a threaded connection manner, the other end of the threaded rod is provided with a second nut in a threaded connection manner, supporting legs are arranged at four corners below the underframe, a motor is arranged below the underframe and at a position corresponding to the threaded rod, the output end of the motor is fixedly connected with one end of the threaded rod extending out of the underframe, a strip-shaped through hole communicated with the inner cavity of the fixing column is arranged on one side surface of, the first fixing rod and the second fixing rod both extend to form a strip-shaped through hole, a T-shaped groove is formed in the front face of the first fixing rod, at least two T-shaped sliding blocks are arranged in the T-shaped groove in a sliding connection mode, hanging racks are arranged on the front faces of the T-shaped sliding blocks, semicircular grooves are formed in the upper faces of the hanging racks, a magnet strip is arranged on the front face of the second fixing rod, and at least two magnet stones are arranged on the front face of the magnet strip.

Due to the adoption of the technical scheme, the beneficial effects of the utility model reside in that: the stability of the support between the product of the utility model and the ground is improved by the combination of the bottom frame, the supporting legs and the fixing columns, and then the universal wheels are convenient to move to any position, when the projection image is small, the projection image can move forward, so that the student can watch the projection more clearly; the distance between the hangers is adjusted through the movement between the T-shaped sliding block and the T-shaped groove, and the distance between the first fixing rod and the second fixing rod is adjusted to adapt to the width and the length of different curtains, so that the projection requirement is met.

As the improvement, T type recess bottom surface equipartition is equipped with a plurality of arc type slot rolling, every establish to the arc type transition between the arc type slot rolling, the side that T type slider is close to T type recess just is equipped with the arc wall with one of them arc type slot rolling position department of correspondence, arc wall internal rotation is connected and is equipped with the ball with arc type slot rolling matched with, and the ball has certain limiting displacement, makes two T type sliders not easy random movement, adapts to the curtain axle that length differs like this, supports.

As an improvement, a folding frame is hinged between the opposite side faces of the first fixing rod and the second fixing rod, and the folding frame is matched with the distance between the first fixing plate and the second fixing plate and plays a role in supporting the curtain.

As the improvement, all be equipped with the auto-lock below the supporting leg universal, be convenient for remove.

As the improvement, the motor lateral surface is equipped with the safety cover, magnetite lateral surface parcel is equipped with the cover.

Drawings

Fig. 1 is the utility model relates to a curtain fixing device's for information-based teaching structural schematic diagram.

Fig. 2 is a schematic view of a right-side view section structure of a-a of the device for fixing a curtain for information-based teaching of the present invention.

As shown in the figure: 1. a chassis; 2. fixing a column; 3. a cover plate; 4. a threaded rod; 5. a first nut; 6. a second nut; 7. supporting legs; 8. a motor; 9. a strip-shaped through hole; 10. fixing a rod I; 11. a second fixing rod; 12. a T-shaped groove; 13. a T-shaped slider; 14. a hanger; 15. a semicircular groove; 16. a magnet bar; 17. magnetite; 18. an arc-shaped rolling groove; 19. an arc-shaped slot; 20. a ball bearing; 21. a self-locking universal wheel; 22. a protective cover; 23. and a folding frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine fig. 1, fig. 2. A curtain fixing device for information teaching comprises an underframe 1, wherein a fixed column 2 is arranged on the underframe 1, the inside of the fixed column 2 is of a hollow structure, a cover plate 3 is arranged on the fixed column 2, a threaded rod 4 is arranged below the cover plate 3 and on the underframe 1 and in the fixed column 2 in a rotary connection mode, threads of the threaded rod 4 are opposite from the middle to two ends, a first nut 5 is arranged at one end of the threaded rod 4 in a threaded connection mode, a second nut 6 is arranged at the other end of the threaded rod in a threaded connection mode, supporting legs 7 are arranged at four corners of the lower surface of the underframe 1, a motor 8 is arranged below the underframe 1 and in a position corresponding to the threaded rod 4, the output end of the motor 8 is fixedly connected with one end, extending out of the underframe 1, of the threaded rod 4, a strip-shaped through hole 9 communicated with the inner cavity, the one end that second nut 6 is close to bar through-hole 9 is equipped with dead lever two 11, bar through-hole 9 all extends with dead lever two 11 to dead lever one 10, dead lever one 10 openly is equipped with T type recess 12, sliding connection is equipped with two at least T type sliders 13 in the T type recess 12, T type slider 13 openly all is equipped with stores pylon 14, all be equipped with semicircle type recess 15 above the stores pylon 14, dead lever two 11 openly is equipped with magnet strip 16, magnet strip 16 openly two at least magnet stones 17.

The bottom surface equipartition of T type recess 12 is equipped with a plurality of arc type slot rolls 18, every establish to the arc type transition between the arc type slot rolls 18, T type slider 13 is close to the side of T type recess 12 and is equipped with arc wall 19 with one of them arc type slot rolls 18 position department of correspondence, arc wall 19 internal rotation is connected and is equipped with ball 20 with arc type slot rolls 18 matched with.

A folding frame 23 is hinged between the opposite side surfaces of the first fixing rod 10 and the second fixing rod 11.

And self-locking universal wheels 21 are arranged below the supporting legs 7.

The lateral surface of the motor 8 is provided with a protective cover 22, and the lateral surface of the magnetic iron 17 is wrapped with a cover sleeve.

The utility model discloses when concrete implementation: the contact stability of the product of the utility model and the bottom surface is improved by the combination of the bottom frame 1, the supporting legs 7 and the fixing columns 2, the product of the utility model can be moved to a proper position by the self-locking universal wheels 21 below the bottom frame 1, then the distance between the hanging frames 14 is adjusted according to the size of the curtain shaft, and then the curtain shaft is hung in the semicircular groove 15 above the hanging frames 14, namely the curtain is hung; the T-shaped groove 12 and the T-shaped sliding block 13 are convenient for the movement of the hanging rack 14 to adjust the distance between the hanging racks 14, the ball 20 and the arc-shaped rolling groove 18 are matched to have a certain limiting effect, and the T-shaped sliding block 13, namely the hanging rack 14, can slide only by a little force when sliding is needed, so that the random movement is prevented; adjusting the unfolded length of the curtain, starting an external power supply of the motor 8 at the moment, driving the threaded rod 4 to rotate by the motor 8, namely driving the first nut 5 and the second nut 6 to rotate, driving the first fixing rod 10 and the second fixing rod 11 to rotate by the first nut 5 and the second nut 6, enabling the two to be close to or far away from each other to adapt to the length of the curtain, then placing the lower end of the curtain between the magnet strip 16 and the magnet 17, fixing the curtain through the attraction between the magnet strip 16 and the magnet strip 17, and then carrying out projection use; the utility model discloses simple structure, occupation space is little, easily removes, easily adjusts different curtain length of adaptation and width and projection size requirement promptly.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides an information-based teaching is with curtain fixing device, includes chassis (1), its characterized in that: a fixing column (2) is arranged on the bottom frame (1), a hollow structure is arranged in the fixing column (2), a cover plate (3) is arranged on the fixing column (2), a threaded rod (4) is arranged below the cover plate (3) and above the bottom frame (1) and is positioned on the fixing column (2) in a rotating connection mode, threads of the threaded rod (4) are opposite from the middle to two ends, a nut I (5) is arranged at one end of the threaded rod (4) in a threaded connection mode, a nut II (6) is arranged at the other end of the threaded rod in a threaded connection mode, supporting legs (7) are arranged at four corners below the bottom frame (1), a motor (8) is arranged below the bottom frame (1) and corresponds to the threaded rod (4), the output end of the motor (8) is fixedly connected with one end, extending out of the bottom frame (1), of the threaded rod (4), a strip, one end of a first nut (5) close to the bar-shaped through hole (9) is provided with a first fixing rod (10), one end of a second nut (6) close to the bar-shaped through hole (9) is provided with a second fixing rod (11), the first fixing rod (10) and the second fixing rod (11) all extend out of the bar-shaped through hole (9), the first fixing rod (10) is provided with a T-shaped groove (12) in front, the T-shaped groove (12) is internally connected with at least two T-shaped sliders (13) in a sliding mode, the T-shaped sliders (13) are provided with a hanging rack (14) in front, a semicircular groove (15) is arranged on the hanging rack (14), the second fixing rod (11) is provided with a magnet strip (16) in front, and the magnet strip (16).

2. The curtain fixing device for informationized teaching according to claim 1, wherein: t type recess (12) bottom surface equipartition is equipped with a plurality of arc type slot (18), every establish to the arc type transition between arc type slot (18), T type slider (13) are close to the side of T type recess (12) and correspond the department with one of them arc type slot (18) position and are equipped with arc wall (19), arc wall (19) internal rotation connection is equipped with ball (20) with arc type slot (18) matched with.

3. The curtain fixing device for informationized teaching according to claim 1, wherein: a folding frame (23) is hinged between the opposite side surfaces of the first fixing rod (10) and the second fixing rod (11).

4. The curtain fixing device for informationized teaching according to claim 1, wherein: and self-locking universal wheels (21) are arranged below the supporting legs (7).

5. The curtain fixing device for informationized teaching according to claim 1, wherein: the motor (8) lateral surface is equipped with safety cover (22), magnetite (17) lateral surface parcel is equipped with the cover.