Teaching device capable of absorbing dust for electrician and electronics major

Abstract

The utility model discloses an electrician and electronics professional teaching device capable of absorbing dust, which relates to the technical field of teaching devices, and comprises a storage shell, and the left end of the storage shell is fixedly connected with a motor. According to the utility model, the motor, the rotating rod I, the winding roller and the bearing rod are matched with one another, so that the folding and unfolding process of the teaching projection cloth can be realized, and projection can be conveniently carried out on the teaching projection cloth in the teaching process of the electrician and electronics major so as to carry out teaching of the electrician and electronics major; through mutual cooperation of a chain wheel I, a chain wheel II and a gear, two rotating rods II can be driven to rotate relatively in the process of winding and unwinding the teaching projection cloth, and then the process of automatically cleaning dust on the surface of the teaching projection cloth can be achieved under the action of brush rollers arranged on the two rotating rods II.

Description

Technical Field

[0001] The utility model relates to a teaching device for electrical and electronic majors, in particular to a teaching device for electrical and electronic majors which can absorb dust. Background Art

[0002] Electrical and electronic engineering mainly introduces the basic concepts, basic laws and analysis methods of circuits, transient analysis of circuits, etc. In the teaching process of electrical and electronic engineering, projection teaching devices are usually used to carry out explanations in the teaching process, and projection cloth is required in the process of projection.

[0003] At present, there are still some defects and deficiencies in the use of teaching devices for electrical and electronic majors. The specific areas that need to be improved are as follows:

[0004] Most of the existing teaching devices for electrical and electronic majors do not have the effect of absorbing and cleaning the dust adhered to the projection cloth during the projection teaching process, which has a certain impact on the projection process. Utility Model Content

[0005] The purpose of the utility model is to provide a teaching device for electrical and electronic majors that can absorb dust, so as to solve the problem that the existing teaching devices for electrical and electronic majors mentioned in the above background technology are mostly unable to absorb and clean the dust adhered to the projection cloth during the projection teaching process, thereby causing a certain impact on the projection process.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a teaching device for electrical and electronic engineering that can absorb dust, comprising a storage shell, a motor is fixedly connected to the left end of the storage shell, the motor output shaft is fixedly connected to the left side of the winding dust removal component, the left and right sides of the winding dust removal component are movably connected to the left and right ends of the storage shell, the upper end of the winding dust removal component is fixedly connected to the upper end of the teaching projection cloth, and the upper side of the teaching projection cloth is overlapped with the lower side of the winding dust removal component;

[0007] A dust suction assembly is fixedly connected to the upper end of the storage shell, and the front and rear sides of the dust suction assembly respectively pass through the front and rear ends of the storage shell and are both arranged inside the storage shell. The lower end of the dust suction assembly passes through the fixing plate and the upper end of the water tank and is arranged inside the water tank.

[0008] As a preferred technical solution of the utility model, the lower end of the teaching projection cloth passes through the lower end of the storage shell and is fixedly connected to the load-bearing rod. The left and right sides of the lower end of the storage shell are fixedly connected with mosaic blocks, and the two mosaic blocks are respectively adapted to the left and right ends of the load-bearing rod.

[0009] As a preferred technical solution of the utility model, the fixing plate is fixedly connected to the lower end of the storage shell, the lower end of the fixing plate is fixedly connected to the water tank, and a transparent observation window is provided at the left end of the water tank.

[0010] As a preferred technical solution of the utility model, the storage shell is fixedly connected to a water filling bucket via a fixed block arranged at its left end, the lower end of the water filling bucket is fixedly connected to one end of a water filling pipe, the other end of the water filling pipe passes through a fixed plate and is fixedly connected to the upper end of a water storage tank, a sewage pipe is arranged at the lower end of the water storage tank, and a sewage valve is arranged on the sewage pipe.

[0011] As a preferred technical solution of the utility model, the rear end of the storage shell is fixedly connected to two mounting frames, and two mounting bolts are provided on the two mounting frames.

[0012] As a preferred technical solution of the utility model, the winding dust removal assembly includes a rotating rod one, the left end of the rotating rod one is fixedly connected to the motor output shaft, the right side of the rotating rod one is movably connected to the right end of the storage shell, and a winding roller is fixedly connected to the rotating rod one.

[0013] As an optimal technical solution of the utility model, the upper end of the winding roller teaching projection cloth is fixedly connected, the right end of the rotating rod one is fixedly connected with sprocket one, the sprocket one is transmission connected to sprocket two through a set chain, and the sprocket two is fixedly connected to the right end of the rotating rod two.

[0014] As a preferred technical solution of the utility model, two gears are fixedly connected to the rotating rod 2, and the two gears are respectively meshed with two other gears for transmission, and the two other gears are fixedly connected to the other rotating rod 2, and the left and right sides of the two rotating rods 2 are respectively movably connected to the left and right ends of the storage shell.

[0015] As a preferred technical solution of the utility model, the two rotating rods are fixedly connected with brush rollers, and the relatively close ends of the two brush rollers are overlapped with the front and rear ends of the teaching projection cloth respectively.

[0016] As a preferred technical solution of the utility model, the dust suction assembly includes a suction pump, which is fixedly connected to the storage shell, the right end of the suction pump is fixedly connected to a dust suction main pipe, the lower end of the dust suction main pipe is fixedly connected to two dust suction branch pipes, the relatively close ends of the two dust suction branch pipes respectively pass through the front and rear ends of the storage shell and are both arranged inside the storage shell, the left end of the suction pump is fixedly connected to a delivery pipe, the lower end of the delivery pipe passes through a fixed plate and a water tank and is arranged inside the water tank.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model can realize the process of retracting and extending the teaching projection cloth through the mutual cooperation between the arranged motor, the rotating rod one, the winding roller and the load-bearing rod, and then can conveniently project onto the teaching projection cloth during the teaching of electrical and electronic engineering so as to carry out the teaching of electrical and electronic engineering. The mutual cooperation between the arranged sprocket one, the sprocket two and the gears can drive the two rotating rods two to rotate relative to each other during the process of retracting and extending the teaching projection cloth, and then the automatic cleaning process of the dust on the surface of the teaching projection cloth can be achieved under the action of the brush rollers arranged on the two rotating rods two, and the mutual cooperation between the arranged suction pump, the dust suction main pipe, the dust suction branch pipe and the conveying pipe can absorb and convey the dust cleaned from the teaching projection cloth to the inside of the water tank, and then the dust absorption and cleaning process can be achieved under the action of the water in the water tank, so as to avoid the escape of the cleaned dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0020] Figure 2 It is a left-side stereoscopic structural schematic diagram of the utility model;

[0021] Figure 3 It is a right-side stereoscopic structural schematic diagram of the utility model;

[0022] Figure 4 It is a right side cross-sectional three-dimensional structural schematic diagram of the utility model;

[0023] Figure 5 This is a rear perspective structural diagram of the dust collection assembly of the utility model;

[0024] Figure 6 It is a schematic diagram of the main three-dimensional structure of the winding and dust removal component of the utility model.

[0025] In the figure: 1. Storage shell; 2. Load-bearing rod; 3. Teaching projection cloth; 4. Dust suction assembly; 41. Suction pump; 42. Dust suction main pipe; 43. Delivery pipe; 44. Dust suction branch pipe; 5. Fitting block; 6. Water injection pipe; 7. Winding and dust removal assembly; 71. Sprocket two; 72. Rotating rod two; 73. Gear; 74. Brush roller; 75. Sprocket one; 76. Rotating rod one; 77. Winding roller; 8. Fixed block; 9. Water injection bucket; 10. Motor; 11. Mounting frame; 12. Mounting bolts; 13. Water storage tank; 14. Transparent observation window; 15. Fixed plate; 16. Drain pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-6 As shown, the utility model provides a technical solution: a teaching device for electrical and electronic majors that can absorb dust, comprising a storage shell 1, a motor 10 is fixedly connected to the left end of the storage shell 1, the output shaft of the motor 10 is fixedly connected to the left side of the winding and dust removal component 7, the left and right sides of the winding and dust removal component 7 are movably connected to the left and right ends of the storage shell 1, the upper end of the winding and dust removal component 7 is fixedly connected to the upper end of the teaching projection cloth 3, the upper side of the teaching projection cloth 3 is overlapped with the lower side of the winding and dust removal component 7, and the rotation of the output shaft of the motor 10 can achieve the winding and unfolding process of the teaching projection cloth 3 under the action of the winding and dust removal component 7, so as to facilitate the teaching staff to carry out the projection teaching process of electrical and electronic majors through the teaching projection cloth 3, and in the process of unfolding and winding the teaching projection cloth 3, under the action of the winding and dust removal component 7, the dust on the surface of the teaching projection cloth 3 can be automatically removed under the action of the winding and dust removal component 7, so as to avoid the surface of the teaching projection cloth 3 adhering to a lot of dust, thereby affecting the teaching projection process of electrical and electronic majors;

[0028] A dust suction component 4 is fixedly connected to the upper end of the storage shell 1, and the front and rear sides of the dust suction component 4 pass through the front and rear ends of the storage shell 1 respectively and are both arranged inside the storage shell 1, and the lower end of the dust suction component 4 passes through the fixed plate 15 and the upper end of the water tank 13 and is arranged inside the water tank 13. The dust suction component 4 can be set to transport the cleaned dust to the inside of the water tank 13 during the cleaning process of the dust on the surface of the teaching projection cloth 3, and then under the action of the water set inside the water tank 13, the dust can be adsorbed, thereby preventing the dust cleaned from the teaching projection cloth 3 from escaping.

[0029] The lower end of the teaching projection cloth 3 passes through the lower end of the storage shell 1 and is fixedly connected to the load-bearing rod 2. The left and right sides of the lower end of the storage shell 1 are fixedly connected with a mosaic block 5. The two mosaic blocks 5 are respectively adapted to the left and right ends of the load-bearing rod 2. The fixing plate 15 is fixedly connected to the lower end of the storage shell 1. The load-bearing rod 2 is provided to ensure that the teaching projection cloth 3 is smoothly rolled up and unfolded. The mutual cooperation between the mosaic block 5 and the load-bearing rod 2 can not only avoid excessive rolling of the teaching projection cloth 3, but also increase the stability of the load-bearing rod 2 after the teaching projection cloth 3 is rolled up. The lower end of the fixing plate 15 is fixedly connected to the water tank 13. The left end of the water tank 13 is provided with a transparent observation window 14. The storage shell 1 is connected to the left end thereof. The fixed block 8 is fixedly connected to a water injection bucket 9, the lower end of the water injection bucket 9 is fixedly connected to one end of the water injection pipe 6, the other end of the water injection pipe 6 passes through the fixed plate 15 and is fixedly connected to the upper end of the water tank 13, and a sewage pipe 16 is provided at the lower end of the water tank 13. The rear end of the storage shell 1 is fixedly connected to two mounting frames 11, and two mounting frames 11 are each provided with two mounting bolts 12. The installation process of the device can be quickly achieved through the mutual cooperation between the mounted bolts 12 and the mounting frames 11. The mutual cooperation between the mounted water injection bucket 9 and the water injection pipe 6 can not only conveniently add water to the interior of the water tank 13, but also facilitate the discharge of air from the water tank 13 during the vacuuming process of the device.

[0030] The winding dust removal assembly 7 includes a rotating rod 76, the left end of which is fixedly connected to the output shaft of the motor 10, the right side of which is movably connected to the right end of the storage shell 1, a winding roller 77 is fixedly connected to the rotating rod 76, and the upper end of the winding roller 77 is fixedly connected to the teaching projection cloth 3, and a sprocket 75 is fixedly connected to the right end of the rotating rod 76, and the sprocket 75 is transmission-connected to the sprocket 2 71 through a set chain, and the sprocket 2 71 is fixedly connected to the right end of the rotating rod 2 72, and two gears 73 are fixedly connected to the rotating rod 2 72, and the two gears 73 are respectively meshed with two other gears 73 for transmission, and the two other gears 73 are fixedly connected to the other rotating rod 2 72, and the left and right sides of the two rotating rods 2 72 are respectively The two rotating rods 72 are movably connected to the left and right ends of the storage shell 1, and the brush rollers 74 are fixedly connected to the two rotating rods 72. The relatively close ends of the two brush rollers 74 are respectively overlapped with the front and rear ends of the teaching projection cloth 3. The rotation of the output shaft of the motor 10 drives the rotating rod 1 76 to rotate, thereby achieving the process of retracting and releasing the teaching projection cloth 3. In the process of driving the rotating rod 1 76 to rotate, the two rotating rods 2 72 can be driven to rotate under the action of the arranged sprocket 1 75, sprocket 2 71 and gear 73, and the two rotating rods 2 72 have opposite directions. Through the rotation of the two rotating rods 2 72, under the action of the arranged two brush rollers 74, the dust on the surface of the teaching projection cloth 3 during the process of retracting and releasing the teaching projection cloth 3 can be cleaned.

[0031] The dust suction component 4 includes a suction pump 41, which is fixedly connected to the storage shell 1. The right end of the suction pump 41 is fixedly connected to a dust suction main pipe 42. The lower end of the dust suction main pipe 42 is fixedly connected to two dust suction branch pipes 44. The relatively close ends of the two dust suction branch pipes 44 pass through the front and rear ends of the storage shell 1 respectively and are both arranged inside the storage shell 1. The left end of the suction pump 41 is fixedly connected to a delivery pipe 43. The lower end of the delivery pipe 43 passes through the fixed plate 15 and the water tank 13 and is arranged inside the water tank 13. By starting the suction pump 41, the dust cleaned on the teaching projection cloth 3 can be transported to the inside of the water tank 13 under the mutual cooperation between the dust suction main pipe 42, the dust suction branch pipe 44 and the delivery pipe 43, thereby achieving the effect of absorbing dust and preventing the cleaned dust from escaping.

[0032] The operating steps of the utility model are:

[0033] The device can be installed on the wall by the cooperation between the mounting frame 11 and the mounting bolts 12, and then a proper amount of water is added to the water tank 13 by the cooperation between the water injection bucket 9 and the water injection pipe 6, and then the rotating rod 76 is driven to rotate by the starting motor 10, and then the unfolding process of the teaching projection cloth 3 can be achieved under the action of the winding roller 77 and the load-bearing rod 2. At this time, the teaching operation of electrical and electronic majors can be carried out by projecting a projection onto the teaching projection cloth 3. In the process of driving the rotating rod 76 to rotate, the sprocket 75 is set , sprocket 71 and gear 73 can drive the two rotating rods 72 to rotate relative to each other, and then the brush rollers 74 arranged on the two rotating rods 72 can be used to clean the dust on the surface of the teaching projection cloth 3 during the process of retracting and releasing the teaching projection cloth 3. In the process of cleaning the dust on the surface of the teaching projection cloth 3, the suction pump 41 is started to absorb and transport the cleaned dust to the inside of the water tank 13 under the action of the dust suction main pipe 42, the dust suction branch pipe 44 and the conveying pipe 43. At this time, the dust absorption and cleaning effect can be achieved under the action of the water inside the water tank 13.

[0034] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A teaching device for electrical and electronic engineering that can absorb dust, comprising a storage shell (1), characterized in that: The left end of the storage shell (1) is fixedly connected to a motor (10), the output shaft of the motor (10) is fixedly connected to the left side of the winding and dust removal assembly (7), the left and right sides of the winding and dust removal assembly (7) are movably connected to the left and right ends of the storage shell (1), the upper end of the winding and dust removal assembly (7) is fixedly connected to the upper end of the teaching projection cloth (3), and the upper side of the teaching projection cloth (3) is overlapped with the lower side of the winding and dust removal assembly (7); The upper end of the storage shell (1) is fixedly connected to a dust collection assembly (4); the front and rear sides of the dust collection assembly (4) respectively pass through the front and rear ends of the storage shell (1) and are both arranged inside the storage shell (1); the lower end of the dust collection assembly (4) passes through a fixing plate (15) and the upper end of a water storage tank (13) and is arranged inside the water storage tank (13).

2. The dust-absorbing teaching device for electrical and electronic majors according to claim 1 is characterized by: The lower end of the teaching projection cloth (3) passes through the lower end of the storage shell (1) and is fixedly connected to the load-bearing rod (2). The left and right sides of the lower end of the storage shell (1) are fixedly connected with a chimeric block (5), and the two chimeric blocks (5) are respectively adapted to the left and right ends of the load-bearing rod (2).

3. The dust-absorbing teaching device for electrical and electronic majors according to claim 1 is characterized by: The fixing plate (15) is fixedly connected to the lower end of the storage shell (1), and the lower end of the fixing plate (15) is fixedly connected to the water storage tank (13). A transparent observation window (14) is provided at the left end of the water storage tank (13).

4. The dust-absorbing teaching device for electrical and electronic majors according to claim 1 is characterized by: The storage shell (1) is fixedly connected to a water injection bucket (9) via a fixed block (8) arranged at its left end; the lower end of the water injection bucket (9) is fixedly connected to one end of a water injection pipe (6); the other end of the water injection pipe (6) passes through a fixed plate (15) and is fixedly connected to the upper end of a water storage tank (13); and a sewage discharge pipe (16) is arranged at the lower end of the water storage tank (13).

5. The dust-absorbing teaching device for electrical and electronic majors according to claim 1 is characterized by: The rear end of the storage shell (1) is fixedly connected to two mounting frames (11), and two mounting bolts (12) are provided on each of the two mounting frames (11).

6. The dust-absorbing teaching device for electrical and electronic majors according to claim 1 is characterized by: The winding dust removal assembly (7) comprises a rotating rod (76), the left end of which is fixedly connected to the output shaft of the motor (10), the right side of which is movably connected to the right end of the storage shell (1), and a winding roller (77) is fixedly connected to the rotating rod (76).

7. The dust-absorbing teaching device for electrical and electronic majors according to claim 6 is characterized by: The winding roller (77) is fixedly connected to the upper end of the teaching projection cloth (3); the right end of the rotating rod (76) is fixedly connected to the sprocket (75); the sprocket (75) is transmission-connected to the sprocket (71) through a set chain; the sprocket (71) is fixedly connected to the right end of the rotating rod (72).

8. The dust-absorbing teaching device for electrical and electronic majors according to claim 7 is characterized by: Two gears (73) are fixedly connected to the second rotating rod (72), and the two gears (73) are respectively meshed with two other gears (73) for transmission, and the two other gears (73) are both fixedly connected to the other second rotating rod (72), and the left and right sides of the two second rotating rods (72) are respectively movably connected to the left and right ends of the storage shell (1).

9. The dust-absorbing teaching device for electrical and electronic majors according to claim 8 is characterized by: The two rotating rods (72) are both fixedly connected with brush rollers (74), and the relatively close ends of the two brush rollers (74) are respectively overlapped with the front and rear ends of the teaching projection cloth (3).

10. The dust-absorbing teaching device for electrical and electronic majors according to claim 1 is characterized by: The dust suction assembly (4) comprises a suction pump (41), the suction pump (41) is fixedly connected to the storage shell (1), the right end of the suction pump (41) is fixedly connected to a dust suction main pipe (42), the lower end of the dust suction main pipe (42) is fixedly connected to two dust suction branch pipes (44), the relatively close ends of the two dust suction branch pipes (44) respectively pass through the front and rear ends of the storage shell (1) and are both arranged inside the storage shell (1), the left end of the suction pump (41) is fixedly connected to a delivery pipe (43), the lower end of the delivery pipe (43) passes through a fixed plate (15) and a water storage tank (13) and is arranged inside the water storage tank (13).

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