Portable retractable electric pencil sharpener
The electric pencil sharpener, with its portable retractable design and electric drive, combined with the dust reduction function of the atomizing plate, solves the problems of large size and hygiene of traditional pencil sharpeners, improves portability and safety, and improves office efficiency.
Patent Information
- Application Number
- CN202510733903.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- Not applicable · inactive patent
Smart Images

Figure CN120792361A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of office appliances, in particular to a portable retractable electric pencil sharpener. BACKGROUND
[0002] In the field of drawing office and student learning, there are behaviors such as using thick pencils to cut pencils, and pencil sharpeners emerge as the times require. Traditional pencil sharpeners consume manpower and time, and there are health problems such as lead poisoning caused by accidental ingestion of lead. The multifunctional pencil sharpener after multiple iterations also has the problem of being slightly large and not easy to carry. The present application solves the above-mentioned problems by reasonable design of the pencil sharpener in terms of practicability, convenience and safety. SUMMARY
[0003] (I) Technical problems to be solved In view of the shortcomings of the prior art, the present application provides a portable retractable electric pencil sharpener which has practicability, portability and safety, can avoid the problems of large size, not easy to carry and consumption of manpower of the electric pencil sharpener in office and learning, improve office efficiency, and solve the problem that students cannot carry pencil sharpeners.
[0004] (II) Technical scheme In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a portable retractable electric pencil sharpener, comprising a pencil sharpener body shell, a wood chip box storage box, a pencil sharpener, a spring tab, a push-pull plate, an adjustable booster plate, a reduction motor, a lithium battery charging plate and a button switch, the wood chip storage box is embeddedly connected with the pencil sharpener body shell and is fixedly positioned by the spring tab, the pencil sharpener is fixedly connected with the front end of the reduction motor and is fixedly suspended in position by the middle vertical plate of the pencil sharpener body shell, so as to realize the suspension of the pencil sharpener, and the reduction motor is fixedly connected with the middle suspension plate of the pencil sharpener body shell.
[0005] Preferably, the atomizing piece is embeddedly connected with the baffle in the pencil sharpener body shell.
[0006] Preferably, the atomizing piece is connected with the humidifier module circuit board through wires passing through the left space of the pencil sharpener shell, and the pencil sharpener body shell has a water inlet pipe at the upper right corner which directly penetrates the lower water tank.
[0007] Preferably, the 3.7V lithium battery and the adjustable booster plate are placed below the middle suspension plate inside the pencil sharpener body shell, the lithium battery charging plate is fixedly connected with the right wall of the pencil sharpener body shell, and the upper end of the lithium battery charging plate is embeddedly connected with the upper surface of the pencil sharpener body shell.
[0008] Preferably, the button switch is embeddedly connected with the pencil sharpener body shell.
[0009] Preferably, the push-pull plate is embedded in the wood chip storage box bottom plate and can be stretched horizontally.
[0010] (Three) beneficial effects Compared with the prior art, the present application provides a portable retractable electric pencil sharpener with the following beneficial effects: 1. The portable retractable electric pencil sharpener, through the spring tab, realizes the telescopic fixing of the wood chip storage box and the shell, greatly reduces the volume when stored, and is convenient to put into a pen bag or pocket, solving the problem of large volume of traditional pencil sharpener.
[0011] 2. The portable retractable electric pencil sharpener, through the reduction motor driving the pencil sharpener to rotate, can quickly complete the pencil sharpening, greatly improves the efficiency compared with the manual pencil sharpener, and does not need manpower, reducing the fatigue of the user.
[0012] 3. The portable retractable electric pencil sharpener, through the wood chip storage box through the push-pull plate to open horizontally, concentrates the collection of wood chips, avoids scattering, and the optional atomization function sprays water mist through the atomization piece, reduces the floating of lead dust generated during pencil sharpening, and reduces the inhalation risk.
[0013] 4. The portable retractable electric pencil sharpener, through the 3.7v lithium battery cooperating with the adjustable booster plate to provide stable power, the lithium battery charging plate supports USB charging, and is suitable for various power sources. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is the part distribution diagram of the present application; Figure 2 is Figure 1 the sectional view in the direction of C-C; Figure 3 is the working state diagram of the present application; Figure 4 is the storage state diagram of the present application; Figure 5 is the right side sectional view of the present application; Figure 6 is Figure 5 the sectional view in the direction of B-B Figure 7 is the internal sectional view of the present application; Figure 8 is Figure 7 the sectional view in the direction of A-A Figure 9 is the top view of the present application.
[0015] In the figure: 1 wood chip storage box, 2 push-pull plate, 3 pencil sharpener body shell, 4 pencil sharpener, 5 reduction motor, 6 adjustable booster plate, 7 button switch, 8 spring tab, 9 lithium battery charging plate, 103.7v lithium battery, 11 humidifier module circuit board, 12 atomization piece, 13 lower water tank, 14 water inlet. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0017] Referring to Figures 1-7 A portable retractable electric pencil sharpener includes a pencil sharpener body shell 3, a wood chip box storage box 1, a pencil sharpener 4, a spring tab 8, a push-pull plate 2, an adjustable booster plate 6, a speed reducer motor 5, a lithium battery charging plate 9 and a button switch 7. The wood chip storage box 1 is embeddedly connected with the pencil sharpener body shell 3 and is fixedly positioned by the spring tab. The pencil sharpener 4 is fixedly connected with the front end of the speed reducer motor 5 and is fixedly suspended in the middle vertical plate of the pencil sharpener body shell 3, so that the pencil sharpener 4 is suspended. The speed reducer motor 5 is fixedly connected with the middle suspension plate of the pencil sharpener body shell 3. The button switch 9 is embeddedly connected with the pencil sharpener body shell 3. The push-pull plate 2 is embedded in the bottom plate of the wood chip storage box 1 and can be horizontally stretched.
[0018] Referring to Figures 1-7 The atomizing sheet 12 is embeddedly connected with the baffle in the pencil sharpener body shell 3. The atomizing sheet 12 is connected with the humidifier module circuit board 11 through wires passing through the left space of the pencil sharpener shell 3. There is a water inlet 15 on the upper right corner of the pencil sharpener body shell 3, and a pipeline directly penetrates the lower water tank 13.
[0019] Referring to Figures 1-7 The 3.7V lithium battery and the adjustable booster plate 6 are placed below the middle suspension plate in the pencil sharpener body shell 3. The lithium battery charging plate 9 is fixedly connected with the right wall of the pencil sharpener body shell 3, and the upper end of the lithium battery charging plate 9 is embeddedly connected with the upper surface of the pencil sharpener body shell 3.
[0020] In summary, when the portable retractable electric pencil sharpener is used, the pencil sharpener body shell 3 is pushed out to a specified position by the spring tab 8, and the spring tab 8 is released to be fixed in the clamping groove of the wood chip storage box 1. After a pencil is placed into the side entrance of the present application, the button switch 7 is pressed, the 3.7V lithium battery 10 generates electricity to drive the speed reducer motor 5 to brake, so that the pencil sharpener rotates around the front end axis of the speed reducer motor, achieving the effect of sharpening the pencil. At the same time, the atomizing sheet starts to work to spray water mist, achieving the effect of dust reduction.
[0021] It is to be understood that the terminology "including", "comprising", or other derivatives from the term "contain" are inclusive and that, in addition to the stated combinations, other combinations are also contemplated. It is to be further understood that the term "comprising" or "comprises" does not exclude other elements being present in addition to those listed. It is to be further understood that the term "including" or "includes" does not exclude other elements being present in addition to those listed.
[0022] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since the scope of the application is defined with respect to the appended claims.
Claims
1. A portable retractable electric pencil sharpener, comprising a pencil sharpener body shell (3), a wood chip storage box (1), a pencil sharpener (4), a spring pick (8), a push-pull plate (2), an adjustable boost plate (6), a reduction motor (5), a lithium battery charging plate (9) and a button switch (7), characterized in that: The sawdust storage box (1) is embeddedly connected to the pencil sharpener body shell (3) and is retracted and positioned by spring slices. The pencil sharpener (4) is fixedly connected to the front end of the reduction motor (5) and is fixed in a suspended position by the middle vertical plate of the pencil sharpener body shell (3), so that the pencil sharpener (4) is suspended in the air. The reduction motor (5) is fixedly connected to the middle suspension plate of the pencil sharpener body shell (3).
2. The portable retractable electric pencil sharpener according to claim 1, characterized in that: The atomizing sheet (12) is embedded in the inner baffle of the pencil sharpener body shell (3) for embedded connection.
3. The portable retractable electric pencil sharpener according to claim 1, characterized in that: The atomizing sheet (12) is connected to the humidifier module circuit board (11) via a wire passing through the left side space of the pencil sharpener housing (3). A water inlet (15) is provided at the upper right corner of the pencil sharpener housing (3), and the pipe directly leads to the lower water tank (13).
4. The portable retractable electric pencil sharpener according to claim 1, characterized in that: The 3.7V lithium battery and the adjustable boost plate (6) are placed under the middle suspended plate inside the pencil sharpener body shell (3); the lithium battery charging plate (9) is fixedly connected to the right wall of the pencil sharpener body shell (3); and the upper end of the lithium battery charging plate (9) is embedded in the upper surface of the pencil sharpener body shell (3).
5. The portable retractable electric pencil sharpener according to claim 1, characterized in that: The button switch (9) is embeddedly connected to the pencil sharpener body housing (3).
6. The portable retractable electric pencil sharpener according to claim 1, characterized in that: The push-pull plate (2) is embedded in the bottom plate of the wood chip storage box (1) and can be stretched horizontally.
