Dust-free writing board

Abstract

The utility model discloses a dust-free writing board which comprises two limiting sliding plates, a writing frame is connected between the two limiting sliding plates in a sliding mode, a writing board body is fixedly connected to the inner wall of the writing frame, and a damping sliding plate is connected to the inner wall of the writing frame in a sliding mode. When a user needs to measure, the damping sliding plate can be moved to be arranged below a measured object, the connecting plate is moved, the connecting plate drives the scale plate to move, the user can rotate the scale plate to measure and can be matched with the bevel protractor to measure an angle, and when the user needs to write, the user can use a water-based mark pen to write on the writing board. The writing board is made of polyester fibers, ink of the water-based mark pen is oily or water-based and directly flows out of the pen point and is displayed on the writing board, and therefore when the water-based mark pen is used for writing on the writing board, no dust is left, and the dust-free writing effect is achieved.

Description

Technical Field

[0001] The utility model relates to a writing board, in particular to a dust-free writing board. Background Art

[0002] Existing dust-free writing boards are used for teaching, office writing and display. For example, teachers use writing boards to show students their thinking and knowledge points, so that students can receive information and knowledge points more quickly and effectively. Water-based markers are usually used for writing to avoid the generation of dust, but some dust-free writing boards still have some problems.

[0003] 1. Some dust-free writing boards are suitable for teaching subjects such as Chinese and English, but are less suitable for teaching subjects such as mathematics and art. When teaching, the measuring ruler and the angle ruler need to be coordinated with each other to draw figures. When drawing, the user needs to press the measuring ruler with one hand and draw with a pen with the other hand, which is inconvenient. When cleaning the writing board, it is usually wiped with a blackboard eraser. The blackboard eraser is small in size and requires the user to wipe it continuously. There are also some dead corners when wiping.

[0004] 2. Some blackboard erasers need to add an appropriate amount of clean water when wiping the writing board in order to maintain its cleaning effect. Some blackboard erasers need to be cleaned after long-term use. When cleaning, the blackboard eraser needs to be disassembled, which is inconvenient. Utility Model Content

[0005] The utility model aims to provide a dust-free writing board to solve the problems of low applicability to teaching subjects such as mathematics and art and inconvenience in cleaning the blackboard eraser proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-free writing board, comprising two limiting slides, a writing frame is slidably connected between the two limiting slides, the inner wall of the writing frame is fixedly connected to the writing board, the inner wall of the writing frame is slidably connected to a damping slide, a connecting plate is provided on the top of the damping slide, a scale plate is rotatably connected to the back of the connecting plate, a sleeve is slidably connected to the inner wall of the scale plate, both sides of the top of the damping slide are fixedly connected to extension plates, one side of the bottom ends of the two extension plates is slidably connected to a fixed plate, the bottom end of the fixed plate is snap-connected with a cleaning wipe plate, the other side of the bottom ends of the two extension plates is fixedly connected to an adjustment plate, and the middle parts of the two adjustment plates are threadedly connected to screws;

[0007] The bottom end of the writing frame is fixedly connected to a cleaning box, the inner wall of the cleaning box is fixedly connected to a partition plate, both sides of the inner wall of the cleaning box are rotatably connected to squeezing rollers, the front of the partition plate is snap-connected to a water-absorbing sponge, and two sealing plates are provided inside the cleaning box, one of which is rotatably connected to a side wall of the partition plate, and the other sealing plate is rotatably connected to the inner wall of the cleaning box, the bottom ends of the two sealing plates are fixedly connected to compression springs, and the bottom ends of the two compression springs are respectively fixedly connected to the inner wall of the partition plate and the inner wall of the cleaning box.

[0008] As a preferred technical solution of the utility model, the top end of the connecting plate is fixedly connected with an angle ruler, and the bottom end of the connecting plate is slidably connected to the top end of the damping slide plate.

[0009] As a preferred technical solution of the utility model, a side wall of the scale plate is provided with a limiting slide groove, an inner wall of the limiting slide groove is slidably connected with an adjusting rod, and one end of the adjusting rod is fixedly connected to a sleeve ring.

[0010] As a preferred technical solution of the utility model, one end of the two screw rods passes through the damping slide plate and is rotatably connected to the fixed plate, and the back side of the cleaning wiper plate is attached to the front side of the writing board.

[0011] As a preferred technical solution of the utility model, the bottom ends of the two limiting slides are fixedly connected with a movable base.

[0012] As a preferred technical solution of the utility model, a plurality of capillary suction tubes are fixedly connected to the bottom end of the water-absorbing sponge, and the bottom ends of the plurality of capillary suction tubes are fixedly connected to the inner wall of the cleaning box.

[0013] As a preferred technical solution of the utility model, the bottom end of the cleaning box is fixedly connected with a transmission pipe, and a valve is installed in the middle of the transmission pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model provides a damping slide, a scale plate, a connecting plate and an angle ruler. When the user needs to measure, the damping slide can be moved to the bottom of the object to be measured, and the connecting plate can be moved. The connecting plate drives the scale plate to move. The user can rotate the scale plate for measurement, and can cooperate with the angle ruler to measure the angle. When a sliding arc is required, when the user needs to write, the user can use a water-based marker to write on the writing board. The writing board is made of polyester fiber. The ink of the water-based marker is oily or water-based, and flows directly from the pen tip and appears on the writing board without the need to generate powder through friction. Therefore, the use of a water-based marker pen is convenient. The marker pen will not leave dust when writing on a specific writing board, thus achieving the effect of dust-free writing. With the provided adjusting rod, ring and other components, the user can adjust the adjusting rod to drive the ring to move to a suitable height, and then insert the tip of the water-based marker pen into the ring, and then turn the water-based marker pen to draw an arc. When the writing board needs to be cleaned, the user turns the two screws respectively, so that the two screws push the fixed plates respectively to make the cleaning eraser fit the surface of the writing board, and then moves the limiting slide plate up and down to make the cleaning eraser wipe the writing on the surface of the writing board, thereby cleaning the writing board and reducing the dead corners of the writing board when cleaning.

[0016] 2. The utility model is provided with a cleaning box, a partition plate, a water-absorbing sponge and a capillary suction tube and other components. The partition plate can divide the cleaning box into two compartments. The user pours clean water into one side of the cleaning box in advance, cooperates with the provided sealing plate and compression spring, and when the cleaning wipe plate descends into the cleaning box, the bottom end of the cleaning wipe plate squeezes and passes through the two sealing plates, the two sealing plates drive the compression springs to compress, the capillary suction tube absorbs the clean water and soaks the water-absorbing sponge, at this time, the cleaning wipe plate fits the soaked water-absorbing sponge, when the cleaning wipe plate is away from the water-absorbing sponge, the cleaning wipe plate no longer squeezes the two sealing plates, the two compression springs drive the two sealing plates to reset, so that the sealing plate can move one of the two sealing plates. The compartments are closed to prevent the clean water inside from being contaminated and reduce the evaporation of clean water. The cleaning wipe board that absorbs water can enhance the erasing effect. Water can moisten the writing left by the water-based marker pen, making it easier to erase. In conjunction with the provided squeezing rollers, transmission pipes and valves, when the cleaning wipe board wipes off the writing of the water-based marker pen on the writing board, the cleaning wipe board passes through the two squeezing rollers provided in the compartment on the other side of the cleaning box. The squeezing rollers squeeze out the sewage inside the cleaning wipe board. Then the user opens the valve, and the sewage flows out from the transmission pipe. The user can collect the sewage with the help of tools such as buckets and then treat it, so as to keep the cleaning wipe board clean and avoid affecting its cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the limiting slide plate part of the utility model;

[0019] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 It is a structural cross-sectional view of the cleaning box part of the utility model;

[0022] Figure 6 It is a structural cross-sectional view of the cleaning box part of the utility model.

[0023] In the figure: 1. Mobile base; 2. Limit slide plate; 3. Writing board; 4. Cleaning box; 401. Extrusion roller; 402. Partition plate; 403. Absorbent sponge; 404. Capillary suction tube; 405. Transmission tube; 406. Valve; 407. Sealing plate; 408. Compression spring; 5. Damping slide plate; 501. Scale plate; 502. Limit slide groove; 503. Angle ruler; 504. Connecting plate; 505. Screw; 506. Ring; 507. Adjusting rod; 508. Extension plate; 509. Fixed plate; 510. Cleaning wiper; 511. Adjusting plate; 6. Writing frame. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-6 , the utility model provides a technical solution for a dust-free writing board:

[0026] Embodiment 1:

[0027] according to Figure 1-4As shown, a dust-free writing board comprises two limiting slide plates 2, a writing frame 6 is slidably connected between the two limiting slide plates 2, a writing board 3 is fixedly connected to the inner wall of the writing frame 6, the writing board 3 is made of polyester fiber, and its surface is smooth and can be used for writing with a water-based marker pen. The ink of the water-based marker pen is water-soluble ink. When the water-based marker pen rubs against the writing board 3, no dust will be generated, thereby achieving the function of dust-free writing, a damping slide plate 5 is slidably connected to the inner wall of the writing frame 6, a connecting plate 504 is provided on the top of the damping slide plate 5, a scale plate 501 is rotatably connected to the back of the connecting plate 504, a collar 506 is slidably connected to the inner wall of the scale plate 501, and the collar 506 is made of rubber, both sides of the top of the damping slide plate 5 are fixedly connected to extension plates 508, and one side of the bottom of the two extension plates 508 They are both slidably connected with a fixed plate 509, and a cleaning wiper plate 510 is snap-connected at the bottom end of the fixed plate 509. The other sides of the bottom ends of the two extension plates 508 are fixedly connected with an adjusting plate 511. The middle parts of the two adjusting plates 511 are threadedly connected with screws 505. The top of the connecting plate 504 is fixedly connected with an angle ruler 503, and the bottom end of the connecting plate 504 is slidably connected to the top of the damping slide plate 5. A limiting groove 502 is provided on one side wall of the scale plate 501, and an adjusting rod 507 is slidably connected to the inner wall of the limiting groove 502. One end of the adjusting rod 507 is fixedly connected to the ring 506, and one end of the two screws 505 penetrates the damping slide plate 5 and is rotatably connected to the fixed plate 509. The back side of the cleaning wiper plate 510 is attached to the front side of the writing board 3, and the bottom ends of the two limiting slide plates 2 are fixedly connected to the movable base 1.

[0028] When used specifically, the utility model provides a dust-free writing board. The user pushes the movable base 1 to move to a suitable position, and then adjusts the writing board 3 to rise or fall. There is a large damping at the sliding connection between the writing board 3 and the limiting slide plate 2 to avoid non-artificial adjustment of the position change. The user can use a water-based marker to write on the writing board 3. When the user needs to measure, the movable damping slide plate 5 is placed under the measured object, and the connecting plate 504 is moved. The connecting plate 504 drives the scale plate 501 to move, and the user can rotate the scale plate 501 to measure. When it is necessary to measure an angle, it can be used in conjunction with the angle ruler 503. When in use, the scale plate 501 can be rotated, and then a position of the scale plate 501 can be observed. The position of the side wall on the angle ruler 503 can measure the angle. When a sliding arc is required, the user can adjust the adjustment rod 507 so that the adjustment rod 507 drives the ring 506 to move to a suitable height. There is a large resistance at the sliding connection between the ring 506 and the scale plate 501. Then the tip of the water-based marker is inserted into the ring 506, and then the water-based marker can be rotated to draw an arc. When the writing board 3 needs to be cleaned, the user rotates the two screws 505 respectively so that the two screws 505 push the fixed plate 509 respectively so that the cleaning eraser 510 fits the surface of the writing board 3, and then moves the limiting slide plate 2 up and down so that the cleaning eraser 510 wipes the writing on the surface of the writing board 3, thereby cleaning the writing board 3.

[0029] Embodiment 2:

[0030] On the basis of the first embodiment, Figure 1 and Figure 5 , Figure 6 As shown, the bottom end of the writing frame 6 is fixedly connected to the cleaning box 4, the inner wall of the cleaning box 4 is fixedly connected to the partition plate 402, the inner walls of the cleaning box 4 are rotatably connected to the squeezing rollers 401 on both sides, the front of the partition plate 402 is snap-connected to the absorbent sponge 403, and the interior of the cleaning box 4 is provided with two sealing plates 407, one of which is rotatably connected to a side wall of the partition plate 402, and the other sealing plate 407 is rotatably connected to the inner wall of the cleaning box 4, the bottom ends of the two sealing plates 407 are fixedly connected to the compression springs 408, and the bottom ends of the two compression springs 408 are respectively fixedly connected to the inner wall of the partition plate 402 and the cleaning box 4 The inner wall of the two sealing plates 407 is light in weight, and the compression spring 408 can lift the sealing plate 407 so that the two sealing plates 407 fit each other, thereby preventing external dust from falling into the top of the water-absorbing sponge 403 and reducing the evaporation of water. The bottom end of the water-absorbing sponge 403 is fixedly connected with a plurality of capillary suction tubes 404, and the bottom ends of the plurality of capillary suction tubes 404 are fixedly connected to the inner wall of the cleaning box 4. The capillary suction tubes 404 are made of absorbent cotton and can guide clean water into the interior of the water-absorbing sponge 403. The bottom end of the cleaning box 4 is fixedly connected with a transmission tube 405, and a valve 406 is installed in the middle of the transmission tube 405.

[0031] When in use, the utility model provides a dust-free writing board. The interior of the cleaning box 4 can be divided into two compartments by setting a partition plate 402. The user presses the two sealing plates 407 in advance and pours clean water. At this time, clean water is stored in one of the compartments. The user rotates the two screws 505 to make the two screws 505 drive the fixing plate 509 away from the surface of the writing board 3, and then presses the limiting slide plate 2 to drive the cleaning wipe board 510 to descend to one of the compartments in the cleaning box 4. The cleaning wipe board 510 squeezes and passes through the two sealing plates 407. The capillary suction tube 404 absorbs the clean water and soaks the absorbent sponge 403. At this time, the cleaning wipe board 510 fits the soaked absorbent sponge 403. The cleaning wipe board 510 absorbs the clean water inside the absorbent sponge 403, which can improve the cleaning effect of the cleaning wipe board 510. The water can moisten the writing left by the water-based marker. Thereby, the cleaning effect of the cleaning wipe board 510 is improved. When the cleaning wipe board 510 is away from the absorbent sponge 403, the two compression spring belts 408 respectively drive the two sealing plates 407 to reset, and the compartment filled with clean water is closed to protect the cleanliness of the clean water. When the cleaning wipe board 510 needs to be cleaned, the user rotates the two screws 505, and the two screws 505 cooperate with the adjustment plate 511 to push the fixed plate 509 to move to the top of another compartment, and then press the limiting slide plate 2 to descend, and the limiting slide plate 2 drives the fixed plate 509 to descend the cleaning wipe board 510, and the cleaning wipe board 510 passes through the two squeezing rollers 401, and the two squeezing rollers 401 squeeze out the sewage inside the cleaning wipe board 510, and then the user opens the valve 406, and the sewage flows out from the transmission pipe 405, so as to keep the cleaning wipe board 510 clean and avoid affecting its cleaning effect.

[0032] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

Claims

1. A dust-free writing board, comprising two limiting slide plates (2), characterized in that: A writing frame (6) is slidably connected between the two limiting slides (2), the inner wall of the writing frame (6) is fixedly connected with a writing board (3), the inner wall of the writing frame (6) is slidably connected with a damping slide (5), a connecting plate (504) is provided on the top of the damping slide (5), the back of the connecting plate (504) is rotatably connected with a scale plate (501), the inner wall of the scale plate (501) is slidably connected with a sleeve ring (506), both sides of the top of the damping slide (5) are fixedly connected with extension plates (508), one side of the bottom end of the two extension plates (508) is slidably connected with a fixing plate (509), the bottom end of the fixing plate (509) is snap-connected with a cleaning wiper (510), the other side of the bottom end of the two extension plates (508) is fixedly connected with an adjusting plate (511), and the middle parts of the two adjusting plates (511) are threadedly connected with a screw (505); The bottom end of the writing frame (6) is fixedly connected to a cleaning box (4), the inner wall of the cleaning box (4) is fixedly connected to a partition plate (402), both sides of the inner wall of the cleaning box (4) are rotatably connected to squeezing rollers (401), the front side of the partition plate (402) is snap-connected to a water-absorbing sponge (403), two sealing plates (407) are provided inside the cleaning box (4), one of the sealing plates (407) is rotatably connected to a side wall of the partition plate (402), and the other of the sealing plates (407) is rotatably connected to the inner wall of the cleaning box (4), the bottom ends of the two sealing plates (407) are fixedly connected to compression springs (408), and the bottom ends of the two compression springs (408) are respectively fixedly connected to the inner wall of the partition plate (402) and the inner wall of the cleaning box (4).

2. A dust-free writing board according to claim 1, characterized in that: The top end of the connecting plate (504) is fixedly connected to an angle ruler (503), and the bottom end of the connecting plate (504) is slidably connected to the top end of the damping slide plate (5).

3. The dust-free writing board according to claim 1, characterized in that: A limiting sliding groove (502) is provided on one side wall of the scale plate (501), an adjusting rod (507) is slidably connected to the inner wall of the limiting sliding groove (502), and one end of the adjusting rod (507) is fixedly connected to the collar (506).

4. The dust-free writing board according to claim 1, characterized in that: One end of each of the two screw rods (505) passes through the damping slide plate (5) and is rotatably connected to the fixing plate (509), and the back surface of the cleaning wipe plate (510) is attached to the front surface of the writing board (3).

5. The dust-free writing board according to claim 1, characterized in that: The bottom ends of the two limiting slide plates (2) are fixedly connected to a movable base (1).

6. The dust-free writing board according to claim 1, characterized in that: The bottom end of the water-absorbing sponge (403) is fixedly connected to a plurality of capillary suction tubes (404), and the bottom ends of the plurality of capillary suction tubes (404) are all fixedly connected to the inner wall of the cleaning box (4).

7. The dust-free writing board according to claim 1, characterized in that: The bottom end of the cleaning box (4) is fixedly connected to a transmission tube (405), and a valve (406) is installed in the middle of the transmission tube (405).

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