Movable sliding rail screen for teaching

Abstract

The utility model provides a movable slide rail screen for teaching, which comprises a rectangular fixed frame and a screen, and is characterized in that a first linear motor and a second linear motor are respectively mounted at the upper end and the lower end of the inner side of the fixed frame; rotors on the first linear motor and the second linear motor move in the horizontal direction; the upper end of the screen is fixedly mounted on a rotor of the first linear motor; the lower end of the screen is fixedly installed on a rotor of the second linear motor. The linear motor is used for replacing a traditional screen driving mechanism, and has the advantages that the structure is simpler, and disassembly and assembly are convenient; 2, the structure is thinner, and the occupied space is smaller; 3, the weight is light, the load is small, and the screen moves more stably and smoothly; 4, the screen moves faster, the screen moving time can be saved, and the teaching effect and quality are improved; and 5, the sound generated when the screen moves is small, so that the teaching of a teacher and the listening of students are not interfered, and the teaching quality is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a slide rail screen technical field, concretely is a teaching mobile slide rail screen. BACKGROUND

[0002] The slide rail screen is widely applied to commercial display, museum, art gallery, stage performance, meeting and exhibition field because of its high flexibility and powerful interactivity.

[0003] Chinese patent CN117989429A discloses a multi-modal slide rail screen cooperative control system, including a screen, installed on the slider of the slide rail, the power mechanism is connected with the worm gear reducer of the driving end of the servo motor, the driving end of the worm gear reducer is connected with the gear, and the gear is engaged with the fixed rack on the system. The servo motor drives the gear to roll on the rack, and drives the screen to move along the length direction of the rack.

[0004] The above setting has the following defects: 1, when the worm gear reducer and the gear and rack run, the noise is large, when used in quiet environment, especially in teaching environment, the teaching quality will be seriously affected; 2, the speed reduction of the worm gear will cause the screen to move slowly, which is not conducive to the rapid improvement of teaching effect; 3, the above structure is thick and heavy as a whole, and occupies a large installation space. UTILITY MODEL CONTENT

[0005] To solve the technical problems in the background art, the utility model discloses a teaching mobile slide rail screen.

[0006] The utility model provides a teaching mobile slide rail screen, including rectangular fixed frame and screen, the upper and lower ends of the inboard of fixed frame are installed with first linear motor and second linear motor respectively,

[0007] The movers on the first linear motor and the second linear motor all move along the horizontal direction,

[0008] The upper end of the screen is fixedly installed on the mover of the first linear motor,

[0009] The lower end of the screen is fixedly installed on the mover of the second linear motor.

[0010] The utility model uses the linear motor to replace the traditional screen driving mechanism, and its beneficial effects are: 1, the structure is simpler, and the dismounting is convenient, 2, the structure is thinner, and the occupied space is smaller, 3, the weight is light, the load is small, the screen moves more stably and smoothly, 4, the screen moves faster, can save the time of screen movement, improves the teaching effect and quality, 5, the sound produced when the screen moves is small, will not cause the interference of teacher's teaching and student's listening to class, and the teaching quality is higher.

[0011] Due to the students sitting in the front row, it is still easy to hear the noise generated by the screen movement, based on this, the further improvement is that the first linear motor and the second linear motor are located between the fixed frame and the screen are covered with an organ protective cover; one end of the organ protective cover is fixedly connected with the horizontal end of the inner side of the fixed frame, and the other end of the organ protective cover is fixedly connected with the side wall of the screen.

[0012] In order to further reduce the noise generated by the screen movement, specifically: the inner side wall of the organ protective cover is pasted with sound-absorbing cotton.

[0013] In order to realize the stable linear movement of the mover, the further design is that the first linear motor and the second linear motor are the same structure, both including a stator and a mover; the stator is provided with a T-shaped slot; the mover is in the shape of an I-beam, and one end of the mover is inserted into the T-shaped slot.

[0014] When the screen moves to the two ends of the fixed frame, it is easy to collide with the fixed frame, based on this, the further improvement is that the inner side of the fixed frame is also provided with a buffer, including a cylinder, a piston and a piston rod; one end of the piston is fixedly connected with the piston rod; the piston is arranged in the cylinder, thereby separating the inner cavity of the cylinder into a rod cavity and a rodless cavity; the piston rod is in a normal state when it is in an extended state, at this time the rodless cavity is filled with air at normal pressure; the piston rod is opposite to the screen. By such arrangement, when the screen moves to the end of the fixed frame, it first abuts against the piston rod and pushes the piston rod to retract, at this time the air in the rodless cavity is compressed, and its air pressure also gradually increases, causing the resistance of the piston rod retraction to gradually increase, thereby achieving the buffering effect.

[0015] The piston rod hard contacts with the screen, which is easy to scratch or even break the screen shell, based on this, the further improvement is that the end of the piston rod is connected with a soft and elastic buffer block.

[0016] Since the linear motor generates heat during operation, and the organ protective cover blocks the heat dissipation, based on this, the further improvement is that a plurality of heat dissipation holes penetrating through the upper and lower ends are formed on the upper and lower sides of the fixed frame.

[0017] Since the fixed frame is embedded in the wall, the heat dissipation effect is still relatively poor, based on this, the further improvement is that the upper end of the fixed frame is connected with an upper heat dissipation member; the upper heat dissipation member includes an upper heat dissipation plate abutting the upper end surface of the fixed frame, and the outer end of the upper heat dissipation plate vertically extends upward with an upper baffle; the lower end of the fixed frame is connected with a lower heat dissipation member; the lower heat dissipation member includes a lower heat dissipation plate abutting the lower end surface of the fixed frame; the outer end of the lower heat dissipation plate vertically extends downward with a lower baffle.

[0018] Further, the lower end of the lower baffle vertically extends outward with a supporting plate; the outer end of the supporting plate vertically extends upward with a limiting plate. The setting of the supporting plate and the limiting plate not only increases the heat dissipation area, but also can place the teaching aids on the supporting plate, thereby improving the utilization rate of the lower heat dissipation member.

[0019] The utility model discloses the beneficial effect is: 1, simpler structure, easy to dismount, 2, the structure is more thin, and the space is smaller, 3, light in weight, small load, screen moves more stable, smooth, 4, screen moves faster, can save the time of screen movement, improve teaching effect and quality, 5, the sound when screen moves is small, will not cause the interference of teacher's teaching and student's class, and the teaching quality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further described below in connection with the drawings and examples.

[0021] Figure 1 It is the structure schematic diagram of the utility model;

[0022] Figure 2 It is the structure schematic diagram of the utility model hidden organ protective cover;

[0023] Figure 3 It is the right view of the utility model;

[0024] Figure 4 It is the split drawing of fixed frame, upper heat dissipation piece and lower heat dissipation piece;

[0025] Figure 5 It is the end view of linear motor;

[0026] Figure 6 It is the structure schematic diagram of buffer;

[0027] Figure 7 It is the main view of buffer;

[0028] In the drawing: 1, fixed frame;2, screen;3, first linear motor;4, second linear motor;5, organ protective cover;6, stator;7, mover;8, T-shaped slot;9, cylinder;10, piston;11, piston rod;12, buffer block;13, heat dissipation hole;14, upper heat dissipation piece;15, lower heat dissipation piece;141, upper heat dissipation plate;142, upper baffle;151, lower heat dissipation plate;152, lower baffle;153, supporting plate;154, limiting plate. DETAILED DESCRIPTION

[0029] Now the utility model is further detailed in connection with the drawings. These drawings are all simplified schematic diagram, just with the schematic way to illustrate the basic structure of the utility model, therefore it just shows the constitution related with the utility model.

[0030] As Figure 2As shown, the utility model discloses a teaching mobile slide rail screen, including rectangular fixed frame 1 and screen 2. Fixed frame 1 is spliced by two equal length long rectangular tubes and two equal length short rectangular tubes. The upper and lower ends of the inner side of fixed frame 1 are respectively provided with first linear motor 3 and second linear motor 4. The movers on first linear motor 3 and second linear motor 4 are all moved along the horizontal direction. The upper end of screen 2 is fixedly installed on the mover of first linear motor 3. The lower end of screen 2 is fixedly installed on the mover of second linear motor 4. First linear motor 3 and second linear motor 4 are of the same type and synchronously and unidirectionally operate, so that the movement of screen 2 is more stable.

[0031] As shown, Figure 1 The parts of first linear motor 3 and second linear motor 4 between fixed frame 1 and screen 2 are all covered with organ protective cover 5. The end face of organ protective cover 5 forms U shape, and the open end abuts against the upper side wall or lower side wall of the inner side of fixed frame 1. One end of organ protective cover 5 is fixedly connected with the horizontal end of the inner side of fixed frame 1, and the other end of organ protective cover 5 is fixedly connected with the side wall of screen 2. When screen 2 moves, organ protective cover 5 synchronously expands and contracts, so that the parts of first linear motor 3 and second linear motor 4 between fixed frame 1 and screen 2 are always covered by organ protective cover 5, which reduces the noise.

[0032] The inner side wall of organ protective cover 5 can also be pasted with sound-absorbing cotton to further reduce the noise generated by the movement of screen 2.

[0033] To realize the stable linear movement of mover 7, further design is as follows: first linear motor 3 and second linear motor 4 are of the same structure and all include stator 6 and mover 7. As shown, Figure 5 Stator 6 is provided with T-shaped slot 8. Mover 7 is in the shape of H, and one end of mover 7 is inserted into T-shaped slot 8.

[0034] When screen 2 moves to the two ends of fixed frame 1, it is easy to collide with fixed frame 1, which causes damage. Therefore, buffers are installed at the upper and lower ends of the left inner side of fixed frame 1. As shown, Figure 6 and Figure 7 The buffer includes cylinder 9, piston 10 and piston rod 11. One end of piston 10 is fixedly connected with piston rod 11. Piston 10 is arranged in cylinder 9, so that the inner cavity of cylinder 9 is divided into rod cavity and rodless cavity. The extension state of piston rod 11 is the normal state, and at this time, the rodless cavity is filled with air at normal pressure. The inner side shell of screen 2 is provided with protruding stress plate, and the stress plate faces piston rod 11. In this way, when screen 2 moves to the end of fixed frame 1, the stress plate first abuts against piston rod 11 and pushes piston rod 11 to shrink. At this time, the air in the rodless cavity is compressed, and its air pressure also gradually increases, so that the resistance of piston rod 11 to shrink also gradually increases, thereby achieving the buffering effect.

[0035] The end of the piston rod 11 is connected with a soft and elastic buffer block 12, which is made of cowhide in this embodiment, so as to avoid the screen 2 from being scratched or even broken due to hard contact.

[0036] Since the linear motor generates heat during operation, and the organ protective cover 5 blocks the heat dissipation, a plurality of heat dissipation holes 13 are arranged on the upper and lower sides of the fixed frame 1 to dissipate the heat generated by the linear motor.

[0037] Since the fixed frame 1 is embedded in the wall, the heat dissipation effect is relatively poor, and the following design is made: Figure 3 and Figure 4 As shown in the drawings, the upper end of the fixed frame 1 is connected with an upper heat dissipation member 14; the upper heat dissipation member 14 includes an upper heat dissipation plate 141 which is attached to the upper end surface of the fixed frame 1, and the outer end of the upper heat dissipation plate 141 vertically extends upwardly to form an upper baffle 142; the lower end of the fixed frame 1 is connected with a lower heat dissipation member 15; the lower heat dissipation member 15 includes a lower heat dissipation plate 151 which is attached to the lower end surface of the fixed frame 1; the outer end of the lower heat dissipation plate 151 vertically extends downwardly to form a lower baffle 152.

[0038] The lower end of the lower baffle 152 vertically extends outwardly to form a supporting plate 153; the outer end of the supporting plate 153 vertically extends upwardly to form a limiting plate 154. The arrangement of the supporting plate 153 and the limiting plate 154 not only increases the heat dissipation area, but also allows the teaching aids to be placed on the supporting plate 153, thereby improving the utilization rate of the lower heat dissipation member 15.

[0039] Compared with the prior art, the linear motor is used to replace the traditional screen 22 driving mechanism, and the beneficial effects are: 1. The structure is simpler and more convenient to disassemble and assemble; 2. The structure is thinner and occupies less space; 3. The weight is light, the load is small, and the screen 22 moves more stably and smoothly; 4. The screen 22 moves faster, which can save the moving time of the screen 22, improve the teaching effect and quality; 5. The sound generated when the screen 22 moves is small, which does not interfere with the teacher's teaching and the students' learning, and the teaching quality is higher.

[0040] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A mobile sliding screen for teaching, comprising a rectangular fixed frame (1) and a screen (2), characterized in that: The first linear motor (3) and the second linear motor (4) are respectively installed at the upper and lower ends of the inner side of the fixed frame (1); The movers (7) on the first linear motor (3) and the second linear motor (4) both move in the horizontal direction; The upper end of the screen (2) is fixedly mounted on the mover (7) of the first linear motor (3); The lower end of the screen (2) is fixedly mounted on the mover (7) of the second linear motor (4); The first linear motor (3) and the second linear motor (4) have the same structure, both including a stator (6) and a mover (7); The stator (6) is provided with a T-slot (8); The moving part (7) is I-shaped, with one end inserted into the T-shaped groove (8).

2. The teaching movable sliding screen according to claim 1, characterized in that: The first linear motor (3) and the second linear motor (4) are both covered with bellows protective covers (5) at the positions between the fixed frame (1) and the screen (2); One end of the accordion cover (5) is fixedly connected to one end of the inner horizontal direction of the fixed frame (1), and the other end of the accordion cover (5) is fixedly connected to the side wall of the screen (2).

3. The teaching movable sliding screen according to claim 2, characterized in that: The inner wall of the bellows cover (5) is covered with sound-absorbing cotton.

4. The teaching movable sliding screen according to claim 1, characterized in that: The inner side of the fixed frame (1) is also equipped with a buffer, including a cylinder (9), a piston (10) and a piston rod (11). One end of the piston (10) is fixedly connected to the piston rod (11); The piston (10) is disposed inside the cylinder (9), thereby dividing the inner cavity of the cylinder (9) into a rod chamber and a rodless chamber; The piston rod (11) is in the normal state when it is extended, and the rodless chamber is filled with air at normal pressure. The piston rod (11) is facing the screen (2).

5. The teaching movable sliding screen according to claim 4, characterized in that: The piston rod (11) is connected to a soft and elastic buffer block (12) at its end.

6. The teaching movable sliding screen according to claim 2, characterized in that: The fixed frame (1) has multiple heat dissipation holes (13) on both the upper and lower sides that pass through the upper and lower ends.

7. The teaching movable sliding screen according to claim 6, characterized in that: The upper end of the fixed frame (1) is connected to the upper heat sink (14). The upper heat sink (14) includes an upper heat sink plate (141) that is attached to the upper end face of the fixed frame (1), and an upper baffle (142) extends vertically upward from the outer end of the upper heat sink plate (141). The lower end of the fixed frame (1) is connected to a lower heat sink (15). The lower heat sink (15) includes a lower heat sink plate (151) that is attached to the lower end face of the fixed frame (1). The lower heat sink (151) has a lower baffle (152) extending vertically downward from its outer end.

8. The teaching movable sliding screen according to claim 7, characterized in that: The lower end of the lower baffle (152) extends vertically outward to form a support plate (153). The outer end of the tray (153) extends vertically upward to form a limiting plate (154).

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