Intelligent eye-protection touch writing blackboard capable of effectively reducing dust harm

Abstract

The utility model relates to the technical field of blackboards, and discloses an intelligent eye-protection touch-control writing blackboard capable of effectively reducing dust hazards, which comprises a touch-control blackboard body, an electronic display screen nested in the touch-control blackboard body and a blackboard eraser, and the outer side of the touch-control blackboard body is sleeved with a protection frame plate. And a semi-open groove is formed in the front end structure of the protective frame plate. According to the utility model, the protective case, the protective cabinet door, the negative pressure pump, the internal thread sleeve cover and the filter cartridge form a negative pressure pumping and filtering device, and then the negative pressure pumping and filtering device, the protective frame plate, the filling ring plate and a plurality of first air suction holes in the filling ring plate form a surrounding absorption assembly for combined use; in the process that the blackboard eraser rubs, cleans and touches chalk characters on the surface of the blackboard body, a negative pressure pump creates a negative pressure environment in a protection frame plate to actively conduct negative pressure drainage on chalk dust through a plurality of first air suction holes in a filling ring plate, and then the chalk dust is filtered and collected through a filter cartridge piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to blackboard technical field, concretely is an intelligent eye protection touch writing blackboard that effectively reduces dust harm. BACKGROUND

[0002] The intelligent eye protection touch writing blackboard is a new teaching equipment that combines traditional handwriting blackboard and multimedia equipment by using capacitive touch technology, and can switch between chalkboard writing and multimedia application easily in use, and the same area can be used for normal writing with chalk like ordinary blackboard or watching various multimedia applications such as ppt video, picture and animation by hand touch like big Pad, so that traditional and modern are combined, and use is flexible and simple.

[0003] However, the existing intelligent eye protection touch writing blackboard does not have further improved technical means for dust problem generated in chalk writing process, and the health risk of chalk dust to teachers and students still exists. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides an intelligent eye protection touch writing blackboard that effectively reduces dust harm, and solves the problems in the above background art.

[0005] The utility model provides the following technical scheme: an intelligent eye protection touch writing blackboard that effectively reduces dust harm, comprising a touch blackboard body, an electronic display screen nested in the touch blackboard body, and a blackboard eraser, a protective frame plate is sleeved on the outer side of the touch blackboard body, a semi-open slot is formed in the front end structure of the protective frame plate, a filling ring plate is nested in the front end inner side of the semi-open slot, first air suction holes that are in communication with the space of the filling ring plate are formed in the two sides, top and bottom of the filling ring plate.

[0006] A protective cabinet is arranged on the bottom of the touch blackboard body, a negative pressure pump is sleeved in the protective cabinet, the output end and the input end of the negative pressure pump penetrate the top structure of the protective cabinet, the input end port of the negative pressure pump is sleeved in the bottom of one side of the protective frame plate, an internal thread cover is sleeved on the output end port of the negative pressure pump, and a filter cartridge is screw-connected in the internal thread cover.

[0007] Optionally, a protective cabinet door is hingedly installed on the front end of the protective cabinet, a ventilation slot is formed in the protective cabinet door, and a supporting seat is arranged between the surface of the negative pressure pump shell and the bottom inner wall of the protective cabinet.

[0008] The surface of the top of the female threaded cover is provided with a supporting curved rod between the top surface of the protective case, the filter cartridge is composed of a cylindrical frame and a protective filter screen embedded in the inner wall of the cylindrical frame, the top of the cylindrical frame is threadedly connected to the inner side of the female threaded cover, and a space is arranged between the bottom of the cylindrical frame and the top of the protective case, so that the filter cartridge and the female threaded cover can be disassembled and adjusted.

[0009] The two sides of the protective frame plate are provided with movable negative suction rod assemblies, the movable negative suction rod assembly comprises a hollow rod, a first connecting pipe and a second connecting pipe, one end of the second connecting pipe is fixedly connected to the inner wall of the corresponding side of the protective frame plate, one end of the first connecting pipe is sleeved with a bearing on the inner side of the middle part of the second connecting pipe, the other end of the first connecting pipe is in transmission connection with the end of the hollow rod, and a plurality of second air suction holes are formed in the side wall of the hollow rod.

[0010] The rear end surface of the hollow rod and the front end surface of the touch blackboard body are provided with a gap, so that structural interference is avoided, the middle part of the first connecting pipe is clamped between the corresponding side structure of the filling ring plate, and a transition groove is formed in one end of the first connecting pipe and communicated with the semi-open groove, so that the internal space of the first connecting pipe is communicated with the semi-open groove.

[0011] The top of the hollow rod and the corresponding side of the protective frame plate are provided with a limiting composite structure, the limiting composite structure comprises a gear shaft, an arc-shaped tooth plate and a torsional spring, one end of the gear shaft is in meshing connection with one end of the arc-shaped tooth plate, the rotation center of the arc-shaped tooth plate is the same as that of the second connecting pipe, the other end of the arc-shaped tooth plate is fixedly connected to the surface of the corresponding top of the hollow rod, the other end of the gear shaft is sleeved with a bearing seat fixed to the surface of the corresponding side of the protective frame plate through a bearing, and the two ends of the torsional spring are fixedly connected to the surface of one end of the gear shaft and the front end surface of the bearing seat respectively.

[0012] The gear shaft and the surface of the protective frame plate are provided with a gap, so that structural interference is avoided, and the arc-shaped tooth plate and the surface of the front end of the touch blackboard body are provided with an anti-interference space, so that structural interference is avoided.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The utility model discloses a protective cabinet, protective cabinet door, negative pressure pump, female thread cover and filter cartridge piece composition negative pressure pump filter device are set up, and then with the protection frame board, filling ring board and a plurality of first air holes in the filling ring board inside constitute the surrounding absorption assembly combination use, can in the process of blackboard eraser rubbing clean touch blackboard body surface chalk word, by negative pressure pump through the first air hole in the filling ring board inside active negative pressure drainage of chalk dust is created in the protection frame board inside negative pressure environment, and then through filter cartridge piece filtering collection, fully and effectively reduce chalk dust to the harm of user and student.

[0015] 2、The utility model discloses an activity negative suction rod piece with the protection frame board space intercommunication, and then under the meshing rotation transmission of the limiting composite structure of activity negative suction rod piece, can rotate the adjustment with the top pressure of blackboard eraser on the surface of touch blackboard body, and the space of activity negative suction rod piece and protection frame board intercommunication, can make the negative pressure environment of negative pressure pump further extend, and then make chalk dust produced in the process of blackboard eraser rubbing clean first through second air hole into hollow rod, and then through transition groove, half open slot is drained to filter cartridge piece in negative pressure pump negative pressure and filters collection, thereby further improve the processing range and processing efficiency of chalk dust. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the front view schematic diagram of the utility model structure;

[0017] Figure 2 It is the left view schematic diagram of the utility model structure;

[0018] Figure 3 It is the front view schematic diagram of the utility model structure negative pressure pump;

[0019] Figure 4 It is the local enlarged schematic diagram of the utility model structure filling ring board;

[0020] Figure 5 It is the enlarged schematic diagram of the utility model structure limiting composite structure;

[0021] Figure 6 It is the local enlarged schematic diagram of the utility model structure activity negative suction rod piece;

[0022] Figure 7 It is the enlarged schematic diagram of the utility model structure blackboard eraser.

[0023] In the figure: 1, touch blackboard body; 2, electronic display screen; 3, protective frame plate; 4, filling ring plate; 5, first air inlet; 6, protective cabinet; 7, protective cabinet door; 8, negative pressure pump; 9, internal thread cover; 10, filter cartridge; 11, blackboard eraser; 12, limit composite structure; 121, gear shaft; 122, arc-shaped tooth plate; 123, torsional spring; 13, movable negative suction rod; 131, hollow rod; 132, first connecting pipe; 133, second connecting pipe; 134, first air inlet. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-7 An intelligent eye protection touch writing blackboard capable of effectively reducing dust hazards, comprising a touch blackboard body 1, an electronic display screen 2 nested in the touch blackboard body 1, and a blackboard eraser 11, a protective frame plate 3 is sleeved on the outer side of the touch blackboard body 1, a semi-open slot is formed in the front end structure of the protective frame plate 3, a filling ring plate 4 is nested in the front end inner side of the semi-open slot, and first air inlets 5 are formed in the inner sides of the two sides, the top and the bottom of the filling ring plate 4 and communicate with the space of the filling ring plate 4.

[0026] A protective cabinet 6 is arranged on the bottom outer side of the touch blackboard body 1, a negative pressure pump 8 is sleeved in the protective cabinet 6, a protective cabinet door 7 is hingedly installed in the front end inner side of the protective cabinet 6, a ventilation slot is formed in the inner side of the protective cabinet door 7, a support seat is arranged between the surface of the negative pressure pump 8 and the bottom inner wall of the protective cabinet 6, the output end and the input end of the negative pressure pump 8 penetrate through the top structure of the protective cabinet 6, the input end port of the negative pressure pump 8 is sleeved in the bottom inner side of one side of the protective frame plate 3, the output end port of the negative pressure pump 8 is sleeved with an internal thread cover 9, and the internal thread cover 9 is threadedly connected with a filter cartridge 10 in the inner side.

[0027] A support curved rod is arranged between the surface of the top of the internal thread cover 9 and the top surface of the protective cabinet 6, the filter cartridge 10 is composed of a cylindrical frame and a protective filter screen nested in the inner wall of the cylindrical frame, the top of the cylindrical frame is threadedly connected to the inner side of the internal thread cover 9, and a space is arranged between the bottom of the cylindrical frame and the top of the protective cabinet 6, so that the filter cartridge 10 and the internal thread cover 9 can be disassembled and adjusted.

[0028] The two sides of the protective frame plate 3 are sleeved with movable negative suction rod members 13, the movable negative suction rod members 13 include hollow rods 131, first connecting pipes 132, second connecting pipes 133, one end of the second connecting pipe 133 is fixedly connected to the inner wall of the corresponding side of the protective frame plate 3, one end of the first connecting pipe 132 is sleeved with a bearing in the middle part of the second connecting pipe 133, the other end of the first connecting pipe 132 is in transmission connection with one end of the hollow rod 131, a plurality of second air suction holes 134 are formed in the side wall of the hollow rod 131, the movable negative suction rod members 13 can be linked with the protective frame plate 3 and communicate with the internal space of the protective frame plate 3, thereby extending and expanding the negative pressure dust suction area of the protective frame plate 3, there is a gap between the rear end surface of the hollow rod 131 and the front end surface of the touch blackboard body 1 to avoid structural interference, the middle part of the first connecting pipe 132 is clamped between the corresponding side structure of the filling ring plate 4, and a transition groove communicating with the semi-open groove is formed in one end of the first connecting pipe 132, so that the internal space of the first connecting pipe 132 communicates with the semi-open groove, and a limiting composite structure 12 is arranged between the top of the hollow rod 131 and the corresponding side of the protective frame plate 3.

[0029] The limiting composite structure 12 includes a gear shaft 121, an arc-shaped tooth plate 122 and a torsional spring 123, one end of the gear shaft 121 is in meshing connection with one end of the arc-shaped tooth plate 122, the rotation center of the arc-shaped tooth plate 122 is the same as that of the second connecting pipe 133, and the other end of the arc-shaped tooth plate 122 is fixedly connected to the surface of the top of the corresponding hollow rod 131, the other end of the gear shaft 121 is sleeved with a bearing seat arranged on the surface of the corresponding side of the protective frame plate 3 through a bearing, the two ends of the torsional spring 123 are fixedly connected to the surface of one end of the gear shaft 121 and the front end surface of the bearing seat respectively, the limiting composite structure 12 can be linked with the movable negative suction rod members 13, thereby making the movable negative suction rod members 13 rotate and move synchronously with the movement of the blackboard eraser 11 on the surface of the touch blackboard body 1, and in the case that the blackboard eraser 11 is not used, the movable negative suction rod members 13 can be automatically reset to the corresponding side of the touch blackboard body 1 under the meshing transmission of the limiting composite structure 12 to avoid interference, there is a gap between the gear shaft 121 and the surface of the protective frame plate 3 to avoid structural interference, and there is an anti-interference space between the arc-shaped tooth plate 122 and the surface of the front end of the touch blackboard body 1 to avoid structural interference.

[0030] Working principle:

[0031] Embodiment one

[0032] In the process of rubbing and cleaning the chalk letters on the surface of the touchable blackboard body 1 by the user using the blackboard eraser 11, the negative pressure pump 8 is started, the inside air of the semi-open slot in the protective frame plate 3 is sucked by the input end of the negative pressure pump 8, and then a negative pressure environment is created in the semi-open slot. At the same time, the air containing chalk dust scattered outside the touchable blackboard body 1 will enter the inside of the protective frame plate 3 through the first air suction hole 5 in the filling ring plate 4 under the negative pressure drainage of the protective frame plate 3 after passing through the area where the filling ring plate 4 is located, and then be pumped to the inside of the filter cartridge 10 through the output end of the negative pressure pump 8 and the internally threaded cover 9. After being filtered by the protective filter screen in the filter cartridge 10, the dust is collected and the air is discharged. In this way, through the active negative suction flow and filtering collection of chalk dust, the harm of chalk dust to the user is effectively reduced.

[0033] Embodiment two

[0034] In the process of rubbing and cleaning the chalk letters on the surface of the touchable blackboard body 1 by the user using the blackboard eraser 11, the negative pressure pump 8 is started, the inside air of the semi-open slot in the protective frame plate 3 is sucked by the input end of the negative pressure pump 8, and then a negative pressure environment is created in the semi-open slot. At the same time, the air containing chalk dust scattered outside the touchable blackboard body 1 will enter the inside of the protective frame plate 3 through the first air suction hole 5 in the filling ring plate 4 under the negative pressure drainage of the protective frame plate 3 after passing through the area where the filling ring plate 4 is located, and then be pumped to the inside of the filter cartridge 10 through the output end of the negative pressure pump 8 and the internally threaded cover 9. After being filtered by the protective filter screen in the filter cartridge 10, the dust is collected and the air is discharged.

[0035] In order to further speed up the collection of chalk dust, the blackboard eraser 11 can be used to press the movable negative suction rod 13 and rub and clean the surface of the touchable blackboard body 1. At this time, the hollow rod 131 in the movable negative suction rod 13 is communicated with the semi-open slot in the protective frame plate 3 through the transition slot, so the air in the hollow rod 131 is also sucked by the negative pressure pump 8 to create a negative pressure environment. Therefore, the chalk dust generated during the rubbing and cleaning process of the blackboard eraser 11 will first enter the hollow rod 131 through the second air suction hole 134, and then be negatively drained by the negative pressure pump 8 through the transition slot and the semi-open slot to the filter cartridge 10 for filtering and collection, thereby further improving the processing range and efficiency of the chalk dust.

[0036] During the process of being pushed and rotated by the blackboard eraser 11, the gear shaft 121 in the limiting composite structure 12 is engaged with the arc-shaped toothed plate 122 to transmit power, which improves the stability of the rotation of the hollow rod 131. When the hollow rod 131 is not pressed subsequently, the torsional spring 123 deforms to make room for the hollow rod 131 to automatically reset.

[0037] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. In the drawings of the present application, the filling patterns are only for distinguishing layers and do not have any other limitations.

[0038] While the embodiments of the present application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A smart eye-protecting touch-sensitive writing blackboard that effectively reduces dust hazards, comprising a touch-sensitive blackboard body (1), an electronic display screen (2) nested inside the touch-sensitive blackboard body (1), and a blackboard eraser (11), characterized in that: The outer side of the touch blackboard body (1) is sleeved with a protective frame plate (3), a semi-open slot is formed in the front end structure of the protective frame plate (3), and a filling ring plate (4) is nested in the front end of the semi-open slot; first air inlet holes (5) are formed in the two sides, the top and the bottom of the filling ring plate (4) and communicate with the space of the filling ring plate (4). A protective cabinet (6) is arranged at the bottom of the touch blackboard body (1), a negative pressure pump (8) is sleeved in the protective cabinet (6), the output end and the input end of the negative pressure pump (8) penetrate through the top structure of the protective cabinet (6), the input end port of the negative pressure pump (8) is sleeved in the bottom of one side of the protective frame plate (3), and the output end port of the negative pressure pump (8) is sleeved with an internal thread cover (9), and the internal thread cover (9) is threadedly connected with a filter cylinder (10).

2. The intelligent eye-protecting touch-writing blackboard capable of effectively reducing dust hazards according to claim 1, characterized in that: A protective cabinet door (7) is hingedly connected to the front end of the protective cabinet (6), a ventilation slot is formed in the protective cabinet door (7), and a supporting seat is arranged between the surface of the negative pressure pump (8) and the bottom inner wall of the protective cabinet (6).

3. The intelligent eye-protecting touch-writing blackboard capable of effectively reducing dust hazards according to claim 1, characterized in that: A supporting curved rod is arranged between the surface of the top of the internal thread cover (9) and the top surface of the protective cabinet (6), the filter cylinder (10) is composed of a cylindrical frame and a protective filter screen nested in the inner wall of the cylindrical frame, the top of the cylindrical frame is threadedly connected to the inner side of the internal thread cover (9), and a space is arranged between the bottom of the cylindrical frame and the top of the protective cabinet (6).

4. The intelligent eye-protecting touch-writing blackboard capable of effectively reducing dust hazards according to claim 1, characterized in that: An active negative suction rod (13) is sleeved on the inner wall of each side of the protective frame plate (3), the active negative suction rod (13) comprises a hollow rod (131), a first connecting pipe (132) and a second connecting pipe (133), one end of the second connecting pipe (133) is fixedly connected to the inner wall of the corresponding side of the protective frame plate (3), one end of the first connecting pipe (132) is sleeved on the inner side of the middle part of the second connecting pipe (133) through a bearing, the other end of the first connecting pipe (132) is in transmission connection with the one end of the hollow rod (131), and a plurality of second air inlet holes (134) are formed in the inner wall of one side of the hollow rod (131).

5. The intelligent eye-protecting touch-writing blackboard capable of effectively reducing dust hazards according to claim 4, characterized in that: There is a space between the rear end surface of the hollow rod (131) and the front end surface of the touch blackboard body (1), the middle part of the first connecting pipe (132) is clamped between the corresponding side structure of the filling ring plate (4), and a transition slot is formed in one end of the first connecting pipe (132) and communicates with the semi-open slot.

6. The intelligent eye-protecting touch-writing blackboard capable of effectively reducing dust hazards according to claim 4, characterized in that: The top of the hollow rod (131) and the side of the protective frame plate (3) correspond to the setting of a limit composite structure (12), the limit composite structure (12) includes a gear shaft (121), an arc-shaped tooth plate (122) and a torsional spring (123), one end of the gear shaft (121) is engaged with one end of the arc-shaped tooth plate (122), the rotation center of the arc-shaped tooth plate (122) is the same as that of the second connecting pipe (133), and the other end of the arc-shaped tooth plate (122) is fixedly connected to the surface of the corresponding top of the hollow rod (131), the other end of the gear shaft (121) is sleeved with a bearing seat installed on the surface of the corresponding side of the protective frame plate (3) through a bearing bush, and the two ends of the torsional spring (123) are fixedly connected to the surface of one end of the gear shaft (121) and the front end surface of the bearing seat respectively.

7. The intelligent eye-protecting touch-writing blackboard capable of effectively reducing dust hazards according to claim 6, characterized in that: The gear shaft (121) and the surface of the protective frame plate (3) exist a space for giving way, and the arc-shaped tooth plate (122) and the surface of the front end of the touch blackboard body (1) exist an anti-interference space.

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