Desk type teaching conveyor

Abstract

The utility model belongs to the technical field of education and teaching, and particularly relates to a desk type teaching conveyor which comprises a conveyor body, four L-shaped supports are fixedly connected to the top of the conveyor body, a same rotating roller is rotationally connected between every two opposite L-shaped supports, and a same conveying belt is in transmission connection with the two rotating rollers. A first motor is fixedly connected to the inner wall of one side of one L-shaped support in the four L-shaped supports. By starting a second motor, the second motor drives a second gear to rotate through a rotating shaft, the second gear drives a lead screw to rotate through a first gear, the lead screw drives a moving plate to move downwards, the moving plate drives a pressing roller to move downwards through a connecting plate, and the pressing roller extrudes the inner side of a conveying belt, so that the conveying belt is extruded and tightened; at the moment, the tightness degree of the conveying belt changes, the purpose of adjustment is achieved, the tightness degree of the conveying belt can be conveniently and rapidly adjusted according to actual needs, the slipping phenomenon is prevented, and therefore stable feeding can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of education and teaching technology, specifically a desktop teaching conveyor. Background Technology

[0002] Currently, in the field of education, desktop teaching conveyors are widely used in various practical teaching activities as an important auxiliary teaching device. These conveyors primarily transport materials via conveyor belts, and their design aims to provide a stable and efficient material transfer platform to meet various needs such as teaching demonstrations and experimental operations.

[0003] However, in practical applications, existing desktop teaching conveyors generally face a significant problem: after prolonged use, the conveyor belt is prone to loosening or even slipping. Slipping of the conveyor belt not only leads to unstable material conveying, such as material accumulation, slippage, or uneven speed, but may also pose a risk of teaching accidents in severe cases, seriously affecting teaching efficiency and safety. Currently, some conveyors do not allow for easy adjustment of the conveyor belt tension. Therefore, we propose a desktop teaching conveyor to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a desktop teaching conveyor that solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A desktop teaching conveyor includes a body. Four L-shaped supports are fixedly connected to the top of the body. A common rotating roller is rotatably connected between two opposing L-shaped supports. A common conveyor belt is driven onto the two rotating rollers. A first motor is fixedly connected to the inner wall of one of the four L-shaped supports. The end of one of the rotating rollers extends to the front of the other L-shaped support and is fixedly connected to the output shaft of the first motor. A common support plate is fixedly connected between the four L-shaped supports. A lead screw is rotatably connected to the top of the support plate. A movable plate is threaded onto the lead screw. Two connecting plates are fixedly connected to the top of the movable plate. A pressure roller is rotatably connected between the two connecting plates. The pressure roller rolls in contact with the bottom inner side of the conveyor belt. A first gear is fixedly connected to the lead screw. A rectangular block is welded to the top of the support plate. A rotating shaft is rotatably connected to one side of the rectangular block. A second gear is fixedly connected to the end of the rotating shaft. The second gear meshes with the first gear. A second motor is fixedly connected to the other side of the rectangular block. The other end of the rotating shaft extends to the other side of the rectangular block and is fixedly connected to the output shaft of the second motor.

[0009] Furthermore, a stop is welded to the top of the lead screw.

[0010] Furthermore, two positioning rods are welded to the top of the support plate, and a limiting rod is slidably connected to the positioning rod. The top end of the limiting rod is fixedly connected to the bottom of the movable plate.

[0011] Furthermore, the tops of two L-shaped supports on the same side of the four L-shaped supports are fixedly connected to the same baffle.

[0012] Furthermore, the movable plate has a threaded hole, and the movable plate is threadedly connected to the lead screw through the threaded hole.

[0013] Furthermore, a limiting hole is provided on the limiting rod, and the limiting rod is slidably connected to the corresponding positioning rod through the limiting hole.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a desktop teaching conveyor with the following advantages:

[0016] This invention utilizes a second motor. The second motor drives a second gear via a rotating shaft. The second gear, in turn, drives a lead screw via a first gear. The lead screw then moves a moving plate downwards. The moving plate, through a connecting plate, moves a pressure roller downwards. The pressure roller squeezes the inner side of the conveyor belt, tightening it. This changes the belt's tension, achieving the desired adjustment. This allows for quick adjustment of the conveyor belt's tension according to actual needs, preventing slippage and ensuring smooth material feeding. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the tilted three-dimensional structure after the central support plate is hidden;

[0020] Figure 4 This is a three-dimensional structural diagram of the connection between the first gear, the moving plate, the connecting plate, the second gear, the lead screw, and the pressure roller of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the connection between the L-shaped bracket and the rotating roller of this utility model.

[0022] In the diagram: 1. Machine body; 2. L-shaped bracket; 3. Rotary roller; 4. First motor; 5. Conveyor belt; 6. Support plate; 7. Lead screw; 8. Moving plate; 9. Connecting plate; 10. Pressure roller; 11. First gear; 12. Rectangular block; 13. Rotating shaft; 14. Second gear; 15. Second motor; 16. Stop block; 17. Positioning rod; 18. Limiting rod; 19. Baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figure 1-5As shown in the figure, an embodiment of the present invention discloses a desktop teaching conveyor, including a body 1. Four L-shaped supports 2 are fixedly connected to the top of the body 1. A common rotating roller 3 is rotatably connected between two opposing L-shaped supports 2. A common conveyor belt 5 is drivenly connected to the two rotating rollers 3. A first motor 4 is fixedly connected to the inner wall of one of the four L-shaped supports 2. The end of one of the rotating rollers 3 extends to the front side of the other L-shaped support 2 and is fixedly connected to the output shaft of the first motor 4. A common support plate 6 is fixedly connected between the four L-shaped supports 2. A lead screw 7 is rotatably connected to the top of the support plate 6. A movable plate 8 is threaded onto the lead screw 7. Two connecting plates 9 are fixedly connected to the top of the movable plate 8. A common pressure roller 10 is rotatably connected between the two connecting plates 9. The pressure roller 10 rolls in contact with the inner bottom of the conveyor belt 5. A first gear 11 is fixedly connected to the lead screw 7. A rectangular block 1 is welded to the top of the support plate 6. 2. A rotating shaft 13 is rotatably connected to one side of the rectangular block 12. A second gear 14 is fixedly connected to the end of the rotating shaft 13. The second gear 14 meshes with the first gear 11. A second motor 15 is fixedly connected to the other side of the rectangular block 12. The other end of the rotating shaft 13 extends to the other side of the rectangular block 12 and is fixedly connected to the output shaft of the second motor 15. When the second motor 15 is started, it drives the second gear 14 to rotate through the rotating shaft 13. The second gear 14 drives the lead screw 7 to rotate through the first gear 11. The lead screw 7 drives the moving plate 8 to move downward. The moving plate 8 drives the limit rod 18 to slide on the corresponding positioning rod 17. The moving plate 8 drives the pressure roller 10 to move downward through the connecting plate 9. The pressure roller 10 squeezes the inner side of the conveyor belt 5, making the conveyor belt 5 taut. At this time, the tension of the conveyor belt 5 changes, achieving the purpose of adjustment. This makes it easy to quickly adjust the tension of the conveyor belt 5 according to actual needs, preventing slippage and ensuring smooth feeding.

[0026] In some embodiments, a stop 16 is welded to the top of the lead screw 7, and the stop 16 serves to limit the movement.

[0027] In some embodiments, two positioning rods 17 are welded to the top of the support plate 6, and a limiting rod 18 is slidably connected to the positioning rod 17. The top end of the limiting rod 18 is fixedly connected to the bottom of the movable plate 8.

[0028] In some embodiments, the tops of two L-shaped brackets 2 on the same side of the four L-shaped brackets 2 are fixedly connected to the same baffle 19.

[0029] In some embodiments, the movable plate 8 is provided with a threaded hole, and the movable plate 8 is threadedly connected to the lead screw 7 through the threaded hole. Under the action of the engagement force of the threaded hole and the lead screw 7, the movable plate 8 can be fixed after moving to a suitable position.

[0030] In some embodiments, a limiting hole is provided on the limiting rod 18, and the limiting rod 18 is slidably connected to the corresponding positioning rod 17 through the limiting hole. The positioning rod 17 serves a positioning function.

[0031] Working principle or structural principle: When the conveyor belt 5 becomes loose after prolonged use, the second motor 15 is started. The second motor 15 drives the second gear 14 to rotate through the rotating shaft 13. The second gear 14 drives the lead screw 7 to rotate through the first gear 11. The lead screw 7 drives the moving plate 8 to move downward. The moving plate 8 drives the limit rod 18 to slide on the corresponding positioning rod 17. The moving plate 8 drives the pressure roller 10 to move downward through the connecting plate 9. The pressure roller 10 squeezes the inner side of the conveyor belt 5, making the conveyor belt 5 taut. At this time, the tension of the conveyor belt 5 changes, achieving the purpose of adjustment. This makes it easy to quickly adjust the tension of the conveyor belt 5 according to actual needs, preventing slippage and thus enabling stable feeding.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A desktop teaching conveyor, comprising a body (1), characterized in that: Four L-shaped brackets (2) are fixedly connected to the top of the machine body (1). A common roller (3) is rotatably connected between two opposing L-shaped brackets (2). A common conveyor belt (5) is driven to the two rollers (3). A first motor (4) is fixedly connected to the inner wall of one of the four L-shaped brackets (2). The end of one of the rollers (3) extends to the front side of one of the four L-shaped brackets (2) and is fixedly connected to the output shaft of the first motor (4). A common support plate (6) is fixedly connected between the four L-shaped brackets (2). A lead screw (7) is rotatably connected to the top of the support plate (6). A moving plate (8) is threaded onto the lead screw (7). Two connecting plates (9) are fixedly connected to the top of the plate (8). The same pressure roller (10) is rotatably connected between the two connecting plates (9). The pressure roller (10) rolls in contact with the bottom inner side of the conveyor belt (5). A first gear (11) is fixedly connected to the screw (7). A rectangular block (12) is welded to the top of the support plate (6). A rotating shaft (13) is rotatably connected to one side of the rectangular block (12). A second gear (14) is fixedly connected to the end of the rotating shaft (13). The second gear (14) meshes with the first gear (11). A second motor (15) is fixedly connected to the other side of the rectangular block (12). The other end of the rotating shaft (13) extends to the other side of the rectangular block (12) and is fixedly connected to the output shaft of the second motor (15).

2. The desktop teaching conveyor according to claim 1, characterized in that: A stop (16) is welded to the top of the lead screw (7).

3. A desktop teaching conveyor according to claim 2, characterized in that: Two positioning rods (17) are welded to the top of the support plate (6). A limiting rod (18) is slidably connected to the positioning rod (17). The top of the limiting rod (18) is fixedly connected to the bottom of the moving plate (8).

4. A desktop teaching conveyor according to claim 3, characterized in that: The tops of two L-shaped brackets (2) on the same side of the four L-shaped brackets (2) are fixedly connected to the same baffle (19).

5. A desktop teaching conveyor according to claim 4, characterized in that: The movable plate (8) has a threaded hole, and the movable plate (8) is threadedly connected to the lead screw (7) through the threaded hole.

6. A desktop teaching conveyor according to claim 5, characterized in that: The limiting rod (18) has a limiting hole, and the limiting rod (18) is slidably connected to the corresponding positioning rod (17) through the limiting hole.

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