Wet and dry dual-purpose blackboard eraser

By designing a whiteboard eraser that can be used both wet and dry, and combining polymer fibers and sponge materials, the problems of existing whiteboard erasers requiring natural drying and poor wiping performance with cloth have been solved. This design enables quick switching and efficient wiping, improving ease of use and efficiency.

CN223686233UActive Publication Date: 2025-12-19SHANXI UNIV
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Patent Information

Application Number
CN202423258451.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-19
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Most existing whiteboard erasers can only be used in one way. The wiping surface needs to be dried naturally after being wetted, which makes them inconvenient to use. In addition, the wiping effect of the cloth is not good, and an additional drying cloth is required, which increases the complexity.

Method used

Design a wet and dry wiping eraser, comprising an eraser cover, a middle plate, a wet wiping module, and a dry wiping module, which are connected by snap-fit. Combining a polymer fiber dry wiping layer and a sponge wet wiping layer, it has quick switching and water storage functions, realizing both wet and dry use.

Benefits of technology

It enables quick switching and flexible use of the eraser, avoids moisture residue, improves wiping efficiency, saves physical effort, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a wet and dry dual-purpose blackboard eraser, which aims to solve the technical problems that the existing blackboard eraser remains too much water stain after being dipped in water and the waiting time is long, and adopts the technical scheme that the wet and dry dual-purpose blackboard eraser comprises a blackboard eraser cover, a middle plate, a wet wiping module and a dry wiping module, and the wet wiping module and the dry wiping module are fixedly arranged in the middle of the top surface and the bottom surface of the middle plate; the top surface and the bottom surface of the middle plate are provided with buckles, and the eraser cover is clamped with the middle plate through the buckles; the dry wiping module comprises a base and a dry wiping layer, the base is fixedly arranged on the top surface of the middle plate, and the dry wiping layer is arranged on the top surface of the base; the wet wiping module comprises a water storage bin and a wet wiping layer, the water storage bin is arranged on the bottom face of the middle plate, a fixing groove is formed in the bottom face of the water storage bin, the wet wiping layer is arranged in the fixing groove, a water injection knob is arranged on one side of the water storage bin, a pump head is arranged on the other side of the water storage bin, and water seepage holes are evenly formed in the bottom face of the fixing groove. The blackboard eraser can be used in a dry and wet mode, the dry wiping layer and the wet wiping layer are convenient to switch, and the blackboard eraser cover can be rapidly assembled and disassembled.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to stationery technical field, concretely relates to a dry and wet dual -purpose eraser. BACKGROUND

[0002] According to the investigation shows, the whiteboard eraser on the market mostly has only one wiping surface, and the wiping surface needs a period of time to dry naturally after being dipped in water. If too much water stain is left on the whiteboard due to improper wiping, the user can only continue to write after the water stain evaporates naturally, or needs to prepare an extra dry cloth to wipe off the residual moisture on the whiteboard, which is not only time-consuming but also inconvenient. In addition, most of these wiping surfaces are made of velvet, which does not have a moisturizing function and has general water absorption performance. This means that the user may frequently encounter poor wiping effect or residual moisture problem during the use of the eraser, so as to have to rely on a dry cloth to assist in completing the wiping work, increasing the complexity and inconvenience of use. SUMMARY

[0003] The utility model aims at solving the above-mentioned problems, and provides a dry and wet dual -purpose eraser.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] A dry and wet dual -purpose eraser, which comprises an eraser cover, an intermediate plate, a wet wiping module and a dry wiping module, the wet wiping module and the dry wiping module are respectively fixedly arranged in the middle of the top surface and the bottom surface of the intermediate plate, buckles are arranged around the top surface and the bottom surface of the intermediate plate, and the eraser cover is connected with the intermediate plate through the buckles.

[0006] The dry wiping module comprises a base and a dry wiping layer, the base is fixedly arranged in the middle of the top surface of the intermediate plate, and the dry wiping layer is sleeved or adhered to the top surface of the base through a magic tape.

[0007] The wet wiping module comprises a water storage bin and a wet wiping layer, the water storage bin is fixedly arranged in the middle of the bottom surface of the intermediate plate, the bottom surface of the water storage bin is provided with a fixing groove, the wet wiping layer is arranged in or adhered to the fixing groove through a magic tape, one side wall of the water storage bin is provided with a water injection knob, and the other side wall is provided with a pump head, and a plurality of water permeation holes are uniformly arranged on the bottom surface of the fixing groove.

[0008] Further, a pen slot is arranged on the intermediate plate at one side of the water storage bin, a plurality of fixing bands are arranged on the edge of the pen slot, and an erasable pen is inserted into the pen slot.

[0009] Further, the length of the pen slot is greater than the length of the erasable pen.

[0010] Further, the width of the intermediate plate is greater than the width of the eraser cover.

[0011] Further, the dry wiping layer is made of any one kind of high molecular fiber material, and the wet wiping layer is made of sponge.

[0012] Further, the eraser cover is a circular-arched shell structure.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model can realize dry and wet dual use, the eraser cover and the middle plate are connected through buckles, the dry and wet wiping layers are convenient to switch, the eraser cover can be selected to cover the dry wiping surface or the wet wiping surface according to the use scene, and the quick assembly and disassembly of the eraser cover are realized.

[0015] 2. The eraser cover is circular-arched, perfectly fits the hand profile, the erasing action is smooth and natural, the erasing is more convenient, and the physical strength is effectively saved.

[0016] 3. The middle plate is provided with a groove, and the eraser pen is clamped in the groove, so that the eraser pen can be taken and used at any time, and the convenience is further improved.

[0017] 4. The water storage bin can gradually wet the wet wiping layer for a long time, so that the wet wiping layer is prevented from being too wet and leaving more water when wiping the whiteboard, and the wet wiping layer is prevented from evaporating water too fast and being unable to keep wet for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a front view structural schematic view of the utility model; Figure 1

[0020] Figure 3 It is a bottom structural schematic view of the utility model;

[0021] Figure 4 It is a structural schematic view of the utility model without the eraser cover;

[0022] Figure 5 It is a front view structural schematic view of the utility model; Figure 4

[0023] Figure 6 It is another view structural schematic view of the utility model; Figure 4

[0024] Figure 7 It is a structural schematic view of the utility model without the wet wiping layer; Figure 6

[0025] ​​​​In the figure: 1, eraser cover; 2, intermediate plate; 3, buckle; 4, water storage warehouse; 5, wet wiping layer; 6, base; 7, dry wiping layer; 8, water injection knob; 9, pump head; 10, pen slot; 11, erasable pen; 12, fixing belt; 13, fixed groove; 14, water seepage hole. DETAILED DESCRIPTION

[0026] The utility model makes further explanation in combination with the drawings and examples.

[0027] As Figures 1-7 The utility model discloses a dry and wet dual -purpose board eraser, including board eraser cover 1, intermediate plate 2, wet wiping module and dry wiping module, wet wiping module and dry wiping module are fixed in the top surface and bottom surface of intermediate plate 2 middle, the top surface and bottom surface of intermediate plate 2 around is equipped with buckle 3, board eraser cover 1 is circular arch shape shell structure, and the hand is high in conformity, is convenient for holding, and board eraser cover 1 is connected with the intermediate plate 2 through buckle 3, and the width of intermediate plate 2 is greater than the width of board eraser cover 1, and it is convenient for the disassembly of board eraser cover 1 and intermediate plate 2,

[0028] The dry wiping module includes base 6 and dry wiping layer 7, the base 6 is fixed in the top surface of intermediate plate 2 middle, the dry wiping layer 7 adopts any one high polymer fiber material to make, and is set or is pasted in the top surface of base 6 through magic tape,

[0029] The wet wiping module includes water storage warehouse 4 and wet wiping layer 5, the water storage warehouse 4 is fixed in the bottom surface of intermediate plate 2 middle, the bottom surface of water storage warehouse 4 is equipped with fixed groove 13, the wet wiping layer 5 adopts sponge, and is set or is pasted in fixed groove 13 through magic tape, one side side wall of water storage warehouse 4 is equipped with water injection knob 8, and the other side side wall is equipped with pump head 9, the bottom surface of fixed groove 13 evenly is equipped with a plurality of water seepage holes 14, and the intermediate plate 2 of one side of water storage warehouse 4 is equipped with pen slot 10, and the edge of pen slot 10 is equipped with a plurality of fixing belts 12, and the fixing belt 12 can prevent erasable pen 11 from falling, and the erasable pen 11 is inserted into pen slot 10, and the length of pen slot 10 is greater than the length of erasable pen 11, so that the erasable pen 11 is inserted from one side or is taken out.

[0030] The working process of the utility model:

[0031] Before use, open water injection knob 8 and inject water into water storage warehouse 4, screw on water injection knob 8, first connect board eraser cover 1 and dry wiping layer 7 one side of intermediate plate 2 through buckle 3, make wet wiping layer 5 downward, press pump head 9, extrude the water in water storage warehouse 4, make it flow along water seepage hole 14, so that wet wiping layer 5 sponge is wetted,

[0032] The eraser pen 11 is pushed out from the pen slot 10, and writing is performed on the whiteboard with the eraser pen 11. After the writing is completed, the wet wiping layer 5 is used to wipe the writing on the whiteboard by holding the eraser cover 1. After the wiping of the wet wiping layer 5 is completed, the middle plate 2 is moved away from the eraser cover 1, and the middle plate 2 is changed to another direction. The eraser cover 1 and the wet wiping layer 5 are connected through the buckle 3. Then, the dry wiping layer 7 is used to wipe the water marks on the whiteboard by holding the eraser cover 1.

Claims

1. A dry and wet eraser, characterized by, The board eraser cover (1), the intermediate plate (2), the wet wiping module and the dry wiping module are included, the wet wiping module and the dry wiping module are respectively fixed in the top surface and the bottom surface of the intermediate plate (2), the top surface and the bottom surface of the intermediate plate (2) are provided with buckles (3) around, the board eraser cover (1) is clamped with the intermediate plate (2) through the buckle (3); The dry wiping module includes the base (6) and the dry wiping layer (7), the base (6) is fixed in the top surface of the intermediate plate (2), and the dry wiping layer (7) is sleeved or pasted on the top surface of the base (6) through the magic tape; The wet wiping module includes the water storage warehouse (4) and the wet wiping layer (5), the water storage warehouse (4) is fixed in the bottom surface of the intermediate plate (2), the bottom surface of the water storage warehouse (4) is provided with a fixed groove (13), the wet wiping layer (5) is clamped or pasted in the fixed groove (13) through the magic tape, one side wall of the water storage warehouse (4) is provided with a water injection knob (8), and the other side wall is provided with a pump head (9), and the bottom surface of the fixed groove (13) is uniformly provided with a plurality of water permeable holes (14).

2. The dry and wet eraser according to claim 1, wherein The intermediate plate (2) on one side of the water storage warehouse (4) is provided with a pen slot (10), a plurality of fixing bands (12) are arranged on the edge of the pen slot (10), and the pen slot (10) is inserted into the erasable pen (11).

3. The eraser according to claim 2, wherein The length of the pen slot (10) is greater than the length of the erasable pen (11).

4. The dry and wet eraser according to claim 1, wherein The width of the intermediate plate (2) is greater than the width of the board eraser cover (1).

5. The dry and wet eraser according to claim 1, wherein The dry wiping layer (7) is made of any one kind of high molecular fiber material, and the wet wiping layer (5) is made of sponge.

6. The dry and wet eraser according to claim 1, wherein The board eraser cover (1) is a circular arched shell structure.