Magnetic type steel ball writing board with light source

Abstract

The utility model relates to a magnetic type steel ball writing board with a light source, which comprises a writing board body and a magnetic pen matched with the writing board body, the writing board body is composed of a light uniformizing plate, a front plate, a rear plate, a light-transmitting plate and a light source layer, the front plate is a grid plate formed by arranging a plurality of first square cells, and the rear plate is a grid plate formed by arranging a plurality of second square cells. The rear plate is a grid plate formed by arranging a plurality of second square cells corresponding to the first square cells, each first square cell is internally provided with a first containing cavity, each second square cell is internally provided with a second containing cavity, and steel balls are arranged in the second containing cavities; according to the multifunctional writing board, written characters are black, the writing board is a white board, the black and the white are clear, the character presentation effect is clear, dust cannot be generated, dust pollution in air can be effectively reduced, and a healthier environment is created for a user.

Description

Technical Field

[0001] This utility model relates to the field of writing board technology, and in particular to a magnetic steel ball writing board with a light source. Background Technology

[0002] Existing blackboards use chalk for writing, which produces a lot of dust when erased and may leave traces that affect the clarity of subsequent writing. Writing on ordinary blackboards with chalk generates a large amount of dust, which is harmful to the user's health with long-term inhalation. Existing magnetic blackboards, due to uneven distribution of iron powder, easily result in unclear writing. Patent No. 201620296435.X, entitled "A Magnetic Writing Board," discloses a magnetic writing board including a front panel and a back panel that are snapped together. The front panel has several steel ball positioning holes, and the back panel has several steel ball positioning seats for placing steel balls. The steel ball positioning holes correspond one-to-one with the steel ball positioning seats. The magnetic writing board also includes a writing pen with a magnetic tip. The magnetic tip attracts and positions the steel balls on the steel ball positioning seats within the steel ball positioning holes. This invention uses a special magnetic pen for writing. When writing, the magnetic pen tip attracts and positions the steel ball on the ball positioning seat within the ball positioning through hole. After writing, gently vibrating the writing board will cause the steel ball to fall back onto the ball positioning seat. Therefore, there is no need to use tools to erase the writing, which greatly facilitates repeated writing. However, the font of this patent is not clearly distinguishable from the blackboard color, the writing is not clear enough, and the writing effect is poor. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a solution to the problems of insufficient distinction between the writing font and the blackboard color and unclear handwriting in the existing technology. It provides a low-cost, simple structure, easy erasing and writing, no material consumption for writing, no pollution, and reusable magnetic steel ball writing board with light source.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a magnetic steel ball writing board with a light source, comprising a writing board body and a magnetic pen used in conjunction with it. The writing board body 1 is composed of a light-diffusing plate, a front plate, a rear plate, a light-transmitting plate, and a light source layer. The light-diffusing plate, front plate, rear plate, light-transmitting plate, and light source layer, arranged sequentially from front to back, are clamped and fixed by a frame. The front plate is composed of a grid plate formed by arranging a plurality of first square cells, and the rear plate is composed of a grid plate formed by arranging a plurality of second square cells corresponding to the first square cells. Each of the first square cells has a first receiving cavity, which is a square through hole. Each of the second square cells has a second receiving cavity, which is a frustum-shaped through hole. The steel ball is placed in the second receiving cavity. The edge of the small circle of the frustum-shaped through hole is arc-shaped. The connection between the small circle and the arc is a light-transmitting hole. Below the frustum-shaped through hole, there are two corresponding guide rails. The included angle between the two guide rails is 90 degrees. The front of the guide rail is horizontal and the back is inclined. The inclined part is a positioning point for guiding and positioning the steel ball.

[0005] In one embodiment, the diameter of the light-transmitting hole is smaller than the diameter of the steel ball.

[0006] In one embodiment: when the front plate and the rear plate are attached, the center point of the square through hole of the first accommodating cavity corresponds one-to-one with the center point of the small circle of the frustum-shaped through hole of the second accommodating cavity.

[0007] In one embodiment: a reflective layer is provided inside the second accommodating cavity, and the reflective layer may be a silver or white coating.

[0008] In one embodiment: the front of the front panel is a light-diffusing plate, and the rear of the rear panel is a light-transmitting plate and a light source layer in sequence, wherein the light source layer is a planar light source.

[0009] In one embodiment: the pen tip is equipped with a small, strong magnet.

[0010] In summary, this utility model has the following beneficial effects:

[0011] Firstly, the magnetic writing board does not generate dust during use, which can effectively reduce dust pollution in the air and create a healthier environment for users, especially beneficial to the respiratory health of teachers and students.

[0012] Secondly, the writing is clear. This utility model has a light source layer. The light source passes through the light-transmitting plate, the light-transmitting hole, and the light-diffusing plate, making the writing board appear as a high-brightness white board. When writing, the steel ball 7 is attracted into the light-transmitting hole 43 and is tightly attached to it and fixed in a fixed state, completely blocking the light source behind it and making it opaque. The area where the pen tip touches is low-brightness black. In this way, the writing is clear, the white board and the text are clearly distinguished, the text lines are clear, and the color is uniform. It has two guide rails, and the steel ball is kept fixed in the position of the light-transmitting hole without external interference, thus forming stable writing.

[0013] Third, the magnetic writing board is easy to maintain. It only requires regular cleaning of the surface to keep it in good working order. If it is used with an actuator to wipe the writing off the entire board, it can be easily automated. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the writing state of this utility model;

[0015] Figure 2 This is an exploded view of the whiteboard structure of this utility model;

[0016] Figure 3 This is a front view of the first square cell section of this utility model;

[0017] Figure 4 This is a sectional rear view of the second square cell of this utility model;

[0018] Figure 5 This is a schematic diagram of the writing board body structure of this utility model;

[0019] In the diagram: 1. Writing board body; 2. Light distribution plate; 3. Front plate; 31. First square cell; 32. First accommodating cavity; 4. Rear plate; 41. Second square cell; 42. Second accommodating cavity; 43. Light transmission hole; 44. Guide rail; 45. Positioning point; 5. Light transmission plate; 6. Light source layer; 7. Steel ball. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It is worth noting that the directional terms such as "up" and "down" used in this article are all relative to the perspective of the attached figures and are only for the purpose of description. They should not be interpreted as limitations on the technical solutions.

[0022] See Figures 1 to 5A magnetic ballpoint writing board with a light source includes a writing board body 1 and a magnetic pen used in conjunction with it. The writing board body 1 is composed of a light-diffusing plate 2, a front plate 3, a rear plate 4, a light-transmitting plate 5, and a light source layer 6. The light-diffusing plate 2, front plate 3, rear plate 4, light-transmitting plate 5, and light source layer 6 are arranged sequentially from front to back and clamped and fixed by a frame. The front plate 3 is composed of a grid of first square cells 31, and the rear plate 4 is composed of a grid of second square cells 41 corresponding to the first square cells 31. Each first square cell 31 contains a... The first receiving cavity 32 is a square through hole. Each second square cell 41 is provided with a second receiving cavity 42, which is a frustum-shaped through hole. The steel ball 7 is placed in the second receiving cavity 42. The edge of the small circle of the frustum-shaped through hole is arc-shaped. The connection between the small circle and the arc is a light-transmitting hole 43. Two corresponding guide rails 44 are provided below the frustum-shaped through hole. The included angle of the two guide rails 44 is 90 degrees. The front of the guide rail 44 is horizontal and the back is inclined. The inclined point is a positioning point 45 for guiding and positioning the steel ball 7.

[0023] By adopting the above technical solution: when a magnetic pen approaches the panel, the magnetism in the pen will attract the steel ball, causing the steel ball to form a corresponding low-brightness mark on the light-diffusing plate, thereby realizing the writing function. A light source layer 6 is provided behind the writing board. The light source passes through the light-transmitting plate, the light-transmitting hole, and the light-diffusing plate to make the writing board present a high-brightness white board state. The font and the white board are clearly distinguished, the color is uniform, and the writing font lines are clear.

[0024] The diameter of the light-transmitting hole 43 is smaller than the diameter of the steel ball 7.

[0025] By adopting the above technical solution: when writing, when the steel ball 7 is attracted by the magnet in the magnetic pen, one-third of the steel ball extends into the light-transmitting hole 43. The edge of the light-transmitting hole 43 is arc-shaped. The steel ball 7 is wrapped by the arc and closely attached to it, and is fixed in a fixed state, completely blocking the light source behind it and making it opaque. In this way, the writing is clear, and the whiteboard and the font are clearly distinguished.

[0026] When the front plate 3 and the rear plate 4 are attached, the center point of the square through hole of the first accommodating cavity 32 corresponds one-to-one with the center point of the small circle of the frustum-shaped through hole of the second accommodating cavity 42.

[0027] By adopting the above technical solution, the square through holes and the frustum-shaped through holes correspond one-to-one, which is beneficial for the light transmission of the light source behind.

[0028] The second accommodating cavity 42 is provided with a reflective layer, which may be a silver or white coating.

[0029] By adopting the above technical solution, light refraction is improved, shadows are eliminated, the whiteboard appears whiter, and the black characters written on it are clearer on the whiteboard.

[0030] The front panel 3 has a light-diffusing plate 2 in front of it, and the rear panel 4 has a light-transmitting plate 5 and a light source layer 6 behind it. The light source layer 6 is a planar light source.

[0031] By adopting the above technical solution, the planar light source makes the light presented on the whiteboard diffused, uniform, and not dazzling.

[0032] The pen tip is equipped with a small, strong magnet.

[0033] By adopting the above technical solution: the strong magnetic field of the small magnet has a strong attraction, which is conducive to adsorbing steel balls 7.

[0034] The method of using this utility model: The starting angle of the writing board is 3-5 degrees counterclockwise between the writing board and the vertical line, which is the writing state. At this time, the steel ball 7 is at the positioning point 45. The light source behind it shines through the light-transmitting hole 43 and the light radiates to the light-diffusing plate 2. The light-diffusing plate 2 disperses the light evenly, and the writing board is in a white state. When writing with a magnetic pen, the attraction of the magnet in the magnetic pen penetrates the light-diffusing plate 2 and attracts the steel ball to the light-transmitting hole 43. Since the diameter of the light-transmitting hole 43 is smaller than the diameter of the steel ball 7, and the edge of the light-transmitting hole 43 is arc-shaped, the steel ball 7 is attracted into the light-transmitting hole 43 and is tightly attached to it and fixed in a fixed state, completely blocking the light source behind it. The area where the pen tip goes is low-brightness black, showing the written characters. These steel balls 7 form the pattern we draw along the trajectory of the pen tip. When writing is finished and no text needs to be displayed, rotate the writing board backward 3-5 degrees clockwise from the vertical line. When the steel ball 7 rolls backward to the positioning point 45 of the guide rail 44, the steel ball 7 is in a stable state at the positioning point 45, and the light can completely pass through the light-transmitting hole, so that the writing board returns to the blank state. At the same time, rotate the writing board forward 3-5 degrees counterclockwise from the vertical line to return to the starting angle and start writing.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A magnetic ballpoint writing board with a light source, comprising a writing board body (1) and a magnetic pen used in conjunction with it, characterized in that: The writing board body (1) is composed of a light-diffusing plate (2), a front plate (3), a rear plate (4), a light-transmitting plate (5), and a light source layer (6). The light-diffusing plate (2), front plate (3), rear plate (4), light-transmitting plate (5), and light source layer (6) arranged from front to back are clamped and fixed by a frame. The front plate (3) is composed of a number of first square cells (31) arranged to form a grid plate. The rear plate (4) is composed of a number of second square cells (41) corresponding to the first square cells (31) arranged to form a grid plate. Each first square cell (31) is provided with a first receiving cavity (32). (32) is a square through hole. Each second square cell (41) is provided with a second receiving cavity (42). The second receiving cavity (42) is a frustum-shaped through hole. The steel ball (7) is placed in the second receiving cavity (42). The edge of the small circle of the frustum-shaped through hole is set as an arc. The connection between the small circle of the frustum-shaped through hole and the arc is a light-transmitting hole (43). Two corresponding guide rails (44) are provided below the frustum-shaped through hole. The included angle of the two guide rails (44) is 90 degrees. The guide rails (44) are horizontal in front and have an incline at the back. The incline is a positioning point (45) for guiding and positioning the steel ball (7).

2. The magnetic ballpoint writing board with a light source according to claim 1, characterized in that: The diameter of the light-transmitting hole (43) is smaller than the diameter of the steel ball (7).

3. A magnetic ballpoint writing board with a light source according to claim 1, characterized in that: When the front plate (3) and the rear plate (4) are attached, the center point of the square through hole of the first accommodating cavity (32) corresponds one-to-one with the center point of the small circle of the frustum-shaped through hole of the second accommodating cavity (42).

4. A magnetic ballpoint writing board with a light source according to claim 1, characterized in that: The second accommodating cavity (42) is provided with a reflective layer, which may be a silver or white coating.

5. A magnetic ballpoint writing board with a light source according to claim 1, characterized in that: The front panel (3) has a light-diffusing plate (2) in front of it, and the back panel (4) has a light-transmitting plate (5) and a light source layer (6) in sequence behind it. The light source layer (6) is a planar light source.

6. A magnetic ballpoint writing board with a light source according to claim 1, characterized in that: The pen tip is equipped with a small, strong magnet.

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