CN209471335U - Demonstration device for computer professional teaching - Google Patents

Abstract

The utility model relates to the technical field of demonstration devices, in particular to a demonstration device for computer professional teaching. A cleaning box is fixedly connected to the left end of the storage box, and a rotating rod is fixedly connected to the inner side of the top end and the inner side of the bottom end of the cleaning box. Two A rubber scraper is rotatably connected between the rotating rods, a torsion spring is fixedly connected to the inner side of the top end and the inner side of the bottom end of the rotating rod, the other end of the torsion spring is fixedly connected to the cleaning box, and the inner side of the rear end of the cleaning box is The wall is fixedly connected to the limit block, the inner side of the top of the storage box is fixedly connected to the motor, and the end of the motor main shaft is fixedly connected to the connecting rod. , improve the clarity of the projection of the device on the screen during the demonstration, prolong the service life of the device, ensure the use effect of the device, and it is very convenient to use and simple to operate.

Description

Demonstration device for computer professional teaching

technical field

The utility model relates to the technical field of demonstration devices, in particular to a demonstration device for computer professional teaching.

Background technique

In the teaching process, according to the characteristics of teaching objectives and teaching objects, through teaching design, rationally select and use modern teaching media, and organically combine with traditional teaching methods, participate in the whole teaching process together, and use various media information to act on students, forming A reasonable teaching process structure can achieve the most optimized teaching effect. Therefore, the demand for such demonstration devices for computer professional teaching is increasing day by day.

At present, most of the demonstration devices for computer professional teaching on the market are projected onto the screen by a projector for demonstration. However, the traditional computer professional teaching demonstration device curtain is very easy to dust, and the screen becomes dirty and difficult to clean, which affects the screen. The sharpness of the image is low, the life of the device is low, and the retraction of the device is also very troublesome, taking up a lot of space, and the retraction is very inconvenient. Therefore, in view of the above problems, a demonstration device for computer professional teaching is proposed.

Utility model content

The purpose of this utility model is to provide a demonstration device for computer professional teaching to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A demonstration device for computer professional teaching, comprising a storage box, a cleaning box is fixedly connected to the left end of the storage box, and a rotating rod is fixedly connected to the inner side of the top end and the inner side of the bottom end of the cleaning box, and the rotating rod rotates between the two rotating rods. A rubber scraper is connected, a torsion spring is fixedly connected to the inner side of the top end and the inner side of the bottom end of the rotating rod, the other end of the torsion spring is fixedly connected to the cleaning box, and the inner side wall of the rear end of the cleaning box is fixedly connected to a limiting block, The inner side of the top of the storage box is fixedly connected with a motor, the end of the main shaft of the motor is fixedly connected with a connecting rod, the outer side of the connecting rod is fixedly connected with a roller, the bottom end of the connecting rod is rotatably connected with the storage box, and the bottom end of the storage box A bracket is fixedly connected, a first slot is opened on the left side of the top of the bracket, a second slot is opened on the left side of the bracket, a first block is fixedly connected to the right side of the bracket, and a first block is fixedly connected to the right side of the bracket. There is a card tube, the left side of the drum is fixedly connected with a curtain, the left side of the curtain is fixedly connected with a fixed rod, the outer side of the fixed rod is fixedly connected with a third block, and the bottom end of the fixed rod is fixedly connected with a second clip A sleeve is fixedly connected to the outer side of the bottom end of the fixed rod, and a pull rod is slidably connected to one side of the sleeve and the card tube, and a ratchet bar is fixedly connected to one side of the pull rod, and the left side of the ratchet bar is fixed A spring is connected, the left side of the spring is fixedly connected with the inner wall of the left end of the sleeve, and the bottom end of the sleeve is fixedly connected with a compensation block.

Preferably, the right side of the bracket is fixedly connected to the left side of the card tube, the first block is slidably connected to the ratchet bar at the right end, and the second block is slidably connected to the ratchet bar at the left end.

Preferably, the movement track of the third clamping block is linear, the first placement groove is arranged on the movement track of the third clamping block, and the third clamping block fits into the first placement groove.

Preferably, the first placement groove is connected to the second placement groove, the movement trajectory of the sleeve is straight, the second placement groove is set on the movement trajectory of the sleeve, and the sleeve and the second The slots fit snugly into each other.

Preferably, there are two pull rods and two springs, the two pull rods and springs are arranged symmetrically, and the springs are arranged at circumferential positions of the pull rods.

Compared with the prior art, the beneficial effects of the utility model are:

1. In this utility model, through the provided rubber scraper, rotating rod, torsion spring and limit rod, the rubber scraper can wipe the screen every time the screen is pulled out, and the raising device can be projected onto the screen during demonstration. The clearness on the surface, and prolong the service life of the device, ensure the use effect of the device, and it is very convenient to use and easy to operate.

2. In the utility model, the device can be unfolded and retracted conveniently through the ratchet rack, the second block, the fixed rod and the bracket, and the height of the curtain can also be adjusted conveniently, which is convenient for viewing and improving The user experience of the device, the operation of unfolding and retracting is very simple, and it saves space, and can also protect the curtain from damage.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a structural schematic diagram of A place of Fig. 1 of the utility model;

Fig. 3 is the structural schematic diagram of place B of Fig. 1 of the utility model;

Fig. 4 is a top view of the installation structure of the rubber scraper of the present invention.

In the figure: 1-storage box, 2-cleaning box, 3-rotating rod, 4-torsion spring, 5-limit block, 6-rubber scraper, 7-motor, 8-connecting rod, 9-roller, 10- Bracket, 11-first block, 12-curtain, 13-fixing rod, 14-third block, 15-sleeve, 16-second block, 17-ratche bar, 18-pull rod, 19-spring , 20-compensation block, 21-card tube, a-first placement slot, b-second placement slot.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-4, the utility model provides a technical solution:

A demonstration device for computer professional teaching, comprising a storage box 1, a cleaning box 2 is fixedly connected to the left end of the storage box 1, and a rotating rod 3 is fixedly connected to the inner side of the top end and the inner side of the bottom end of the cleaning box 2. A rubber scraper 6 is rotatably connected between the rotating rods 3, and a torsion spring 4 is fixedly connected to the inner side of the top end and the inner side of the bottom end of the rotating rod 3, and the other end of the torsion spring 4 is fixedly connected to the cleaning box 2. The inner side wall of the rear end of the box 2 is fixedly connected to the limit block 5, the inner side of the top of the storage box 1 is fixedly connected to the motor 7, the end of the main shaft of the motor 7 is fixedly connected to the connecting rod 8, and the outer side of the connecting rod 8 is fixedly connected to the roller 9 , the bottom end of the connecting rod 8 is rotationally connected with the storage box 1, the bottom end of the storage box 1 is fixedly connected with a support 10, the left side of the top of the support 10 is provided with a first placement slot a, and the left side of the support 10 is provided with There is a second placement slot b, the right side of the bracket 10 is fixedly connected with a first block 11, the right side of the bracket 10 is fixedly connected with a card tube 21, the left side of the drum 9 is fixedly connected with a curtain 12, and the curtain 12 12 The left side is fixedly connected with a fixed rod 13, the outer side of the fixed rod 13 is fixedly connected with the third block 14, the bottom end of the fixed rod 13 is fixedly connected with the second block 16, and the outer side of the fixed rod 13 is fixed A sleeve 15 is connected, and a pull rod 18 is slidably connected to one side of the sleeve 15 and the card tube 21, and a ratchet bar 17 is fixedly connected to one side of the pull rod 18, and a spring is fixedly connected to the left side of the ratchet bar 17. 19. The left side of the spring 19 is fixedly connected to the inner wall of the left end of the sleeve 15, and the bottom end of the sleeve 15 is fixedly connected with a compensating block 20.

The right side of the bracket 10 is fixedly connected to the left side of the card tube 21, the first block 11 is slidably connected to the ratchet bar 17 at the right end, and the second block 16 is slidably connected to the ratchet bar 17 at the left end. . This setting is beneficial to adjust the height of the device, which is convenient for observation and improves the user experience of the device. The movement track of the third block 14 is linear, and the first placement groove a is arranged on the third block 14. On the movement track, the third clamping block 14 fits with the first placement slot a. This setting is conducive to improving the convenience of device retraction, simple operation and low cost. The first placement slot a and the second placement slot a The two placement grooves b are connected, the motion track of the sleeve 15 is straight, the second placement groove b is arranged on the motion track of the sleeve 15, and the sleeve 15 and the second placement groove b fit together , this setting is conducive to improving the convenience of device retraction and saving space. The number of the pull rods 18 and the springs 19 are two, and the two pull rods 18 and the springs 19 are arranged symmetrically, and the springs 19 are set At the circumferential position of the pull rod 18, this setting is beneficial to improve the convenience of the device to be retracted and save space.

The model of motor 7 is MSMA502D servo motor,

Workflow: The device uses an external power supply for power supply, pull the storage box 1 upward to drive the bracket 10 to move, drive the first block 11 to move upward, and pull the fixing rod 13 upward to drive the second block 16 to move upward, so that the second block 16 moves upward. The first block 11 and the second block 16 are engaged on the ratchet bar 17, the spring 19 provides the thrust for the ratchet bar 17 to engage with the second block 16 or the first block 11, and the pull rod 18 is convenient for disassembly and reset. The compensation block 20 compensates the height of the left side of the device to ensure that the curtain 12 is in a horizontal state, and that the sleeve 15 can be received in the second placement slot b, and the third block 14 can be received in the first placement slot a, which can be adjusted after retracting. The position of the device is limited to prevent the device from shaking randomly, improve the stability of the device operation, and facilitate the deployment and retraction of the device. It is also very convenient to adjust the height of the curtain, which is convenient for viewing and improves the user experience of the device. The retractable operation is very simple and saves space. It can also protect the curtain and prevent the curtain from being damaged. Pull the fixing rod 13 to the left, and the motor 7 will run and rotate, so that the curtain on the roller 9 will be rotated out. The fixing rod 13 will pass through the cleaning box 2 Pull out from the first placement slot a, and the rubber scraper 6 is rotated outward by the frictional force. The limit block 5 limits the rotation of the rubber scraper 6 so that the cleaning end of the rubber scraper 6 can wipe the curtain 12, so that Clean off the dust on the curtain 12, the torsion spring 4 drives the rotating rod 3 to rotate, and provides the pressure for the rubber scraper 6 to wipe the curtain 12, improves the clarity of the projection of the device on the curtain during demonstration, and extends the life of the device. Long service life ensures the use effect of the device, and it is very convenient to use and easy to operate.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of Computer Major Teaching apparatus for demonstrating, including storage box (1), it is characterised in that: storage box (1) left end It is fixedly connected with clean box (2), is fixedly connected to bull stick (3) on the inside of clean box (2) top inner side and bottom end, two institutes It states and is rotatably connected between bull stick (3) rubber flap (6), is fixedly connected on the inside of bull stick (3) top inner side and bottom end The other end of torque spring (4), the torque spring (4) is fixedly connected with clean box (2), clean box (2) rear inside Wall is fixedly connected with limited block (5), and storage box (1) top inner side is fixedly connected with motor (7), motor (7) main shaft End is fixedly connected with connecting rod (8), is fixedly connected with roller (9) on the outside of the connecting rod (8), connecting rod (8) bottom end It is rotatablely connected with storage box (1), storage box (1) bottom end is fixedly connected with bracket (10), bracket (10) top left hand The first placing groove (a) is offered, the second placing groove (b) is offered on the left of the bracket (10), is fixed on the right side of the bracket (10) It is connected with the first fixture block (11), card pipe (21) is fixedly connected on the right side of the bracket (10), is fixedly connected on the left of the roller (9) Have curtain (12), be fixedly connected with fixed link (13) on the left of the curtain (12), is fixedly connected on the outside of the fixed link (13) Third fixture block (14), fixed link (13) bottom end are fixedly connected with the second fixture block (16), fixed link (13) Basolateral It is fixedly connected with casing (15), described sleeve pipe (15) He Kaguan (21) side slidably connects pull rod (18), the pull rod (18) side is fixedly connected with ratchet bar (17), is fixedly connected with spring (19), the spring on the left of the ratchet bar (17) (19) left side is fixedly connected with casing (15) left end inner sidewall, and described sleeve pipe (15) bottom end is fixedly connected with compensation block (20).

2. a kind of Computer Major Teaching apparatus for demonstrating according to claim 1, it is characterised in that: the bracket (10) It is fixedly connected on the left of right side and card pipe (21), first fixture block (11) is slidably connected with ratchet bar described in right end (17), described Second fixture block (16) is slidably connected with ratchet bar described in left end (17).

3. a kind of Computer Major Teaching apparatus for demonstrating according to claim 1, it is characterised in that: the third fixture block (14) motion profile be it is linear, first placing groove (a) is arranged on the motion profile of third fixture block (14), described the Three fixture blocks (14) fit with the first placing groove (a).

4. a kind of Computer Major Teaching apparatus for demonstrating according to claim 1, it is characterised in that: described first places Slot (a) is connected with the second placing groove (b), the motion profile of described sleeve pipe (15) be it is linear, second placing groove (b) is set It sets on the motion profile of casing (15), described sleeve pipe (15) is bonded to each other with the second placing groove (b).

5. a kind of Computer Major Teaching apparatus for demonstrating according to claim 1, it is characterised in that: the pull rod (18) Quantity with spring (19) is two, and at being symmetrical arranged, the spring (19) is set for two pull rods (18) and spring (19) Set the circumferential position in pull rod (18).