CN212995782U - Examination lifting screen - Google Patents

Abstract

The utility model discloses an examination elevating screen, it is including removing the seat, the top of removing the seat is fixed with the bottom plate, and the top of bottom plate is fixed with the vertical fixed pipe that the symmetry set up, the inboard sliding fit of fixed pipe has the lifter, and the upper end of lifter runs through fixed pipe and is fixed with the installation piece, is fixed with same horizontal mounting panel between two installation pieces, the top of mounting panel is fixed with vertical upper fixed frame, and is fixed with detachable on the upper fixed frame and shelters from the curtain, the top of bottom plate is fixed with two bearing frames, and rotates on two bearing frames and install same horizontal dwang. The utility model discloses not only can be used for preventing cheating, and can adjust as required and shelter from the height, use the flexibility good, the controllability is strong, in addition, can be very convenient change the curtain sheltering from through the first magnet and the second magnet that set up, and then conveniently change the curtain of different slogans, excellent in use effect.

Description

Examination lifting screen

Technical Field

The utility model relates to an examination device field especially relates to an examination lift screen.

Background

Present some places of taking an examination, in order to prevent that the student from practising fraud, isolate a section distance with two examinees's desk usually and prevent practising fraud, such mode exists and prevents that practising fraud effect is not good enough, some students with good eyesight still can see the examination paper of the other side, secondly, after every desk all kept apart a section distance, can make the usable area in room reduce a lot, can't hold more examinees and take an examination, make the low-usage, for this reason, we need an examination lift screen.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an examination lifting screen.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an examination lifting screen comprises a moving seat, wherein a lower fixed plate is fixed at the top of the moving seat, vertical fixed tubes symmetrically arranged are fixed at the top of the lower fixed plate, a lifting rod is slidably matched at the inner side of each fixed tube, the upper end of each lifting rod penetrates through the fixed tubes and is fixed with a mounting block, a same transverse mounting plate is fixed between the two mounting blocks, a vertical upper fixed frame is fixed at the top of the mounting plate, a detachable shielding curtain is fixed on the upper fixed frame, two bearing seats are fixed at the top of the lower fixed plate, a same transverse rotating rod is rotatably mounted on the two bearing seats, left and right threads are respectively arranged at two ends of the rotating rod, inner thread blocks are respectively sleeved on the left and right threads, and a driving rod obliquely arranged is rotatably connected between each inner thread block and the corresponding mounting block, the dwang is connected with the driving motor who is fixed in and removes a top through the transmission of band pulley subassembly.

Preferably, the belt wheel assembly comprises a driving belt wheel fixed at the output end of the driving motor, a belt wheel ring positioned between two bearing seats is fixed on the rotating rod, the belt wheel ring is connected with the driving belt wheel through synchronous belt transmission, a controller is fixed on one of the fixing pipes, and the output end of the controller is electrically connected with the driving motor.

Preferably, the top of the fixed pipe is provided with a rectangular hole matched with the lifting rod, and the lifting rod is movably inserted in the rectangular hole.

Preferably, a rectangular limiting block is fixed at the lower end of the lifting rod and is in sliding fit with the inner side of the corresponding fixed pipe.

Preferably, the four corners of the shielding curtain are provided with second magnets in a pressure-equalizing mode, and the second magnets adsorb the first magnets fixed on the upper fixing frame.

Preferably, the top surface of the lower fixing plate is provided with a transverse sliding groove, and the lower end of the internal thread block is in sliding fit in the transverse sliding groove.

Preferably, one side of the fixed pipe is provided with an installation hole matched with the rotating rod in size, and the end part of the rotating rod is rotatably installed in the installation hole.

The utility model discloses in can shelter from the student through the curtain that shelters from that sets up, prevent cheating, and can control driving motor work through operation controller, and then order about the dwang and rotate, on a left side, under the effect of right-hand thread, two internal thread pieces mutual displacement of setting, and then make band pulley ring promote the installation piece and go up and down, and then make the mounting panel, go up fixed frame and the whole lift of curtain of sheltering from, thereby can adjust as required and shelter from the height, use the flexibility good, the controllability is strong, in addition, first magnet and second magnet through setting up can be very convenient change the curtain of sheltering from, and then conveniently change the curtain of different slogans, excellent in use effect, in addition, whole screen simple structure, the cost of manufacture is low, and can be very convenient remove, use the limitation is little.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Reference numbers in the figures: the device comprises a movable seat 1, a lower fixed plate 2, a fixed pipe 3, a lifting rod 4, an installation block 5, an installation plate 6, an upper fixed frame 7, a shielding curtain 8, a rotating rod 9, an internal thread block 10, a driving rod 11, a driving motor 12, a belt wheel ring 13, a first magnet 14 and a second magnet 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an elevating screen for examination comprises a movable base 1, a lower fixed plate 2 is fixed on the top of the movable base 1, vertical fixed tubes 3 are fixed on the top of the lower fixed plate 2, the inner sides of the fixed tubes 3 are matched with an elevating rod 4 in a sliding manner, the upper end of the elevating rod 4 penetrates through the fixed tubes 3 and is fixed with mounting blocks 5, a same horizontal mounting plate 6 is fixed between the two mounting blocks 5, a vertical upper fixed frame 7 is fixed on the top of the mounting plate 6, a detachable shielding curtain 8 is fixed on the upper fixed frame 7, two bearing seats are fixed on the top of the lower fixed plate 2, a same horizontal rotating rod 9 is rotatably mounted on the two bearing seats, left and right-handed threads are respectively arranged at the two ends of the rotating rod 9, inner thread blocks 10 are respectively sleeved on the left and right-handed threads, a driving rod 11 which is obliquely connected between the inner thread blocks 10 and the corresponding mounting blocks 5, the rotating rod 9 is connected with a driving motor 12 fixed on the top of the movable seat 1 through a belt wheel component in a transmission way.

In this embodiment, the band pulley subassembly is including being fixed in the driving pulley of driving motor 12 output, and be fixed with the band pulley ring 13 that is located between two bearing framves on the dwang 9, band pulley ring 13 passes through synchronous belt drive with driving pulley and is connected, and be fixed with the controller on one of them fixed pipe 3, the model of controller is ATMEGA16, the output and the driving motor 12 electricity of controller are connected, the top of fixed pipe 3 is provided with the rectangular hole that matches with lifter 4, and 4 activities of lifter peg graft in the rectangular hole, the lower extreme of lifter 4 is fixed with the rectangle stopper, and rectangle stopper sliding fit is in the inboard of the fixed pipe 3 that corresponds.

In this embodiment, the four corners of the shielding curtain 8 are pressed with the second magnets 15, the second magnets 15 are adsorbed with the first magnets 14 fixed on the upper fixing frame 7, the top surface of the lower fixing plate 2 is provided with the transverse sliding groove, the lower end of the internal thread block 10 is in sliding fit with the transverse sliding groove, one side of the fixing tube 3 is provided with the mounting hole matched with the size of the rotating rod 9, and the end of the rotating rod 9 is rotatably installed in the mounting hole.

The utility model discloses when using, the curtain 8 that shelters from through setting up can shelter from the student, prevent cheating, and can control driving motor 12 work through operation controller, and then order about dwang 9 and rotate, under the effect of left-right hand thread, two internal thread piece 10 reciprocal displacements that set up, and then make band pulley ring 13 promote installation piece 5 and go up and down, and then make mounting panel 6, go up fixed frame 7 and shelter from curtain 8 integral lift, thereby can adjust as required and shelter from the height, use the flexibility good, the controllability is strong, in addition, first magnet 14 and second magnet 15 through setting up can be very convenient change sheltering from curtain 8, and then conveniently change the curtain of different slogans, excellent in use effect, in addition, whole screen simple structure, the cost of manufacture is low, and can very convenient removal, use limitation is little.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides an examination lift screen, is including removing seat (1), its characterized in that, the top of removing seat (1) is fixed with bottom plate (2), and the top of bottom plate (2) is fixed with vertical fixed pipe (3) that the symmetry set up, the inboard sliding fit of fixed pipe (3) has lifter (4), and the upper end of lifter (4) runs through fixed pipe (3) and is fixed with installation piece (5), is fixed with same horizontal mounting panel (6) between two installation pieces (5), the top of mounting panel (6) is fixed with vertical upper fixed frame (7), and is fixed with detachable on upper fixed frame (7) and shelters from curtain (8), the top of bottom plate (2) is fixed with two bearing frames, and rotates on two bearing frames and install same horizontal dwang (9), the both ends of dwang (9) are provided with a left side respectively, Right-handed screw, and on the left and right-handed screw respectively the screw thread cup jointed interior thread piece (10), interior thread piece (10) and corresponding rotate between installation piece (5) and be connected with actuating lever (11) that the slope set up, dwang (9) are connected with through the transmission of band pulley subassembly and are fixed in driving motor (12) that remove seat (1) top.

2. An examination lifting screen according to claim 1, wherein the pulley assembly comprises a driving pulley fixed to the output end of the driving motor (12), and a pulley ring (13) between the two bearing seats is fixed to the rotation rod (9), the pulley ring (13) is connected with the driving pulley through a synchronous belt transmission, and a controller is fixed to one of the fixed tubes (3), and the output end of the controller is electrically connected with the driving motor (12).

3. The examination lifting screen according to claim 1, wherein the top of the fixed tube (3) is provided with a rectangular hole matching with the lifting rod (4), and the lifting rod (4) is movably inserted in the rectangular hole.

4. An examination lifting screen according to claim 1, wherein the lower end of the lifting rod (4) is fixed with a rectangular limiting block which is in sliding fit with the inner side of the corresponding fixed tube (3).

5. The examination screen according to any one of claims 1 to 4, wherein the shielding screen (8) has second magnets (15) disposed at four corners thereof, and the second magnets (15) are attracted to the first magnets (14) fixed to the upper fixing frame (7).

6. An examination lifting screen according to claim 1, characterised in that the top surface of the lower fixing plate (2) is provided with a transverse sliding groove, and the lower end of the internal screw block (10) is in sliding fit in the transverse sliding groove.

7. The examination lifting screen according to claim 1, wherein one side of the fixed tube (3) is provided with a mounting hole matching with the rotating rod (9) in size, and the end of the rotating rod (9) is rotatably mounted in the mounting hole.

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