Double-hole pencil sharpener

Abstract

The utility model relates to pencil sharpener technical field, especially is a kind of double-hole pencil sharpener, including cylinder, first partition of bottom is sequentially distributed from below to above in cylinder, second partition and third partition are equipped in first partition top, upper cover in second partition and third partition top, driving assembly is assembled in second partition, pencil assembly is equipped in upper cover lower end, pencil assembly is in third partition, gear set is assembled in first partition, gear set is connected between driving assembly and pencil assembly, gear set is used to drive pencil assembly rotation the insertion hole and pencil assembly matching and is equipped as two groups;The technology is using double-hole mode and two pencil assembly, can simultaneously do the pencil sharpening operation of two pencils;And its simple structure, using three partition zoning mode, the installation of corresponding component is realized.

Description

Technical Field

[0001] This utility model relates to the field of pencil sharpener technology, and in particular to a double-hole pencil sharpener. Background Technology

[0002] A pencil sharpener (also called a pencil trimmer) is a tool used to sharpen pencils. Its basic function is to remove the wooden outer shell of the pencil, exposing the lead, so that it can be used for writing or drawing. Pencil sharpeners come in two common forms: manual and automatic.

[0003] With the increasing demand from society, existing pencil sharpeners are gradually moving towards automatic models to improve speed and efficiency. However, automatic pencil sharpeners still have room for improvement: (1) the structure of existing automatic pencil sharpeners is too complex, with all the scattered parts being unified in one chamber; (2) existing pencil sharpeners are basically single-piece, requiring one pencil to be sharpened before removing and sharpening another. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A double-hole pencil sharpener includes a cylindrical body. Inside the cylindrical body, from bottom to top, there are a first bottom partition, a second partition and a third partition adjacent to each other on the left and right sides above the first partition, and a top cover above the second and third partitions. A drive assembly is assembled inside the second partition, and a pencil-sharpening assembly is located at the lower end of the top cover. The pencil-sharpening assembly is situated in the third partition. A gear set is assembled inside the first partition, connecting the drive assembly and the pencil-sharpening assembly, and is used to drive the pencil-sharpening assembly to rotate. The top cover has an insertion hole through which a pencil can be inserted into the pencil-sharpening assembly. The pencil-sharpening assembly includes a blade holder, which includes a frame containing an inverted conical hole. A blade is included on the sidewall of the inverted conical hole, with a gap between the blade and the sidewall of the inverted conical hole. A slider extends outward from the upper end of the blade holder, and an annular track is provided at the lower end of the top cover. The slider is located within the annular track and can slide in annular motion. Two sets of insertion holes are provided to match the pencil-sharpening assembly.

[0006] Furthermore, the frame includes connecting columns on the left and right sides. The upper end of the connecting column is connected to the slider, and the lower end of the connecting column is provided with a rotating shaft connected to the gear set. The lower end of the rotating shaft is provided with a positioning groove, and a positioning block is provided between the gear set and the rotating shaft. The positioning block and the positioning groove can be engaged.

[0007] Furthermore, the second compartment also includes a battery compartment, and the bottom of the cylinder has an opening that communicates with the outside, and the opening is connected to the battery compartment.

[0008] Furthermore, the third partition is composed of a semi-circular shell and a cylindrical body. The semi-circular shell and the bottom and top of the inner body of the cylindrical body are fitted with insertion holes and protrusions, and the two sides of the semi-circular shell are provided with pressing grooves.

[0009] Furthermore, the top cover is also provided with a guide groove, in which a spring is installed. A baffle plate is installed on the spring, which blocks one of the insertion holes. A sliding press block that can compress the spring is provided at the upper end of the baffle plate. The press block opens the insertion hole by sliding the baffle plate.

[0010] Furthermore, the second compartment is provided with a positioning part for assembling the drive assembly, and an assembly edge for assembling the blade is provided between the side wall of the inverted conical hole and the connecting column of one side wall, and the assembly edge is provided with screw holes.

[0011] The beneficial effects of this utility model are:

[0012] (1) It adopts a double-hole method and two sets of pencil sharpening components, which can sharpen two pencils at the same time;

[0013] (2) The structure is simple, and it adopts a three-layer partition method to realize the installation of corresponding components;

[0014] (3) The third compartment can be opened through the semi-circular shell, which makes it easier to clean the internal debris and impurities.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the first view of the third compartment in this utility model.

[0018] Figure 3 This is a schematic second view of the third compartment in this utility model.

[0019] Figure 4 This is an exploded structural diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the first partial positional structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the second partial position structure of the present invention.

[0022] Figure 7 A schematic diagram of the assembly structure of a single pen tip assembly.

[0023] The labels in the attached diagram are as follows: cylinder-1, first partition-2, second partition-3, third partition-4, top cover-5, drive assembly-6, pen winding assembly-7, gear set-8, insertion hole-9, knife holder-10, frame-11, blade-12, gap-13, slider-14, annular track-15, connecting column-16, rotating shaft-17, positioning groove-18, positioning block-19, battery compartment-20, opening-21, semi-arc shell-22, insertion hole-23, protrusion-24, pressing groove-25, guide groove-26, spring-27, barrier plate-28, pressing block-29, positioning part-30, assembly edge-31, screw hole-32. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Please see Figures 1-7 The present invention includes a cylindrical body (1), and a first partition (2) is arranged from bottom to top inside the cylindrical body (1). A second partition (3) and a third partition (4) are arranged above the first partition (2) and are close to each other on the left and right sides. A cover (5) is above the second partition (3) and the third partition (4). A drive assembly (6) is assembled in the second partition (3). A pen-grinding assembly (7) is provided at the lower end of the cover (5). The pen-grinding assembly (7) is located in the third partition (4). A gear set (8) is assembled in the first partition (2). The gear set (8) is connected between the drive assembly (6) and the pen-grinding assembly (7). The gear set (8) is used to drive the pen-grinding assembly (7) to rotate. (5) is provided with an insertion hole (9), through which a pencil can be inserted into the pencil sharpening assembly (7); the pencil sharpening assembly (7) includes a blade holder (10), the blade holder (10) includes a frame (11), the frame (11) contains an inverted conical hole, the side wall of the inverted conical hole contains a blade (12), and there is a gap (13) between the blade (12) and the side wall of the inverted conical hole; a slider (14) extends outward from the upper end of the blade holder (10), and an annular track (15) is provided at the lower end of the cover (5), the slider (14) is located in the annular track (15) and the slider (14) can slide in an annular manner; the insertion hole (9) and the pencil sharpening assembly (7) are matched and set into two sets.

[0026] The main technical points of this technology are: Firstly, the reasonable spatial distribution inside the cylinder (1), such as the first partition (2) at the bottom, in which a gear set (8) is assembled for power transmission. Above the first partition (2), there are a second partition (3) and a third partition (4) that are close to each other on the left and right sides. The second partition (3) mainly assembles the drive assembly (6) and the battery assembly to provide electrical energy and power, thereby driving the gear set (8). The third partition (4) is used to assemble the pen-grinding assembly (7), which is driven by the gears. The power transmission of the group (8) finally makes the pencil sharpening assembly (7) work; and the top cover (5) is provided with an insertion hole (9), through which the pencil can be inserted into the pencil sharpening assembly (7); after being inserted, the pencil is finally sharpened by the cooperation of the battery assembly, drive assembly (6), gear group (8) and pencil sharpening assembly (7); the second is that the insertion hole (9) and the pencil sharpening assembly (7) are matched and set as two sets, and two sets of pencil sharpening assemblies (7) are set on the cylinder (1), so that two pencils can be sharpened at the same time.

[0027] Specifically: The pencil sharpening assembly (7) includes a blade holder (10), which includes a frame (11). The frame (11) contains an inverted conical hole, and the side wall of the inverted conical hole contains a blade (12). A gap (13) is left between the blade (12) and the side wall of the inverted conical hole. A slider (14) extends from the upper outer side of the blade holder (10). An annular track (15) is provided at the lower end of the top cover (5). The slider (14) is located in the annular track (15) and can slide in an annular manner. That is, under the cooperation of the annular track (15) and the slider (14), the blade holder (10) is in a rotatable state. It is driven by the drive assembly (6) and the gear set (8). The transmission connection of the pencil sharpening assembly (7) allows for pencil sharpening when the pencil is inserted into the pencil holder (10). The blade (12) of the pencil holder (10) can be disassembled and replaced. The principle of disassembly and replacement is that the frame (11) includes connecting columns (16) on the left and right sides. The upper end of the connecting column (16) is connected to the assembly plate. An assembly edge (31) for assembling the blade (12) is provided between the side wall of the inverted conical hole and the side wall connecting column (16). The assembly edge (31) is provided with screw holes (32). The blade (12) can be assembled and replaced through the screw holes (32) so that the pencil sharpener can be used for a long time.

[0028] To ensure that the gear set (8) can drive the pencil sharpening assembly (7) to work, a rotating shaft (17) connected to the gear set (8) is provided at the lower end of the connecting column (16). A positioning groove (18) is provided at the lower end of the rotating shaft (17), and a positioning block (19) is provided between the gear set (8) and the rotating shaft (17). The positioning block (19) and the positioning groove (18) can be engaged. Thus, the gear set (8) is finally driven by the drive assembly (6), and the transmission is sequentially transmitted to the positioning block (19) and the rotating shaft (17), and finally the rotation of the pencil holder (10) is completed, so as to sharpen the pencil. The start of the internal drive assembly (6) can be achieved by designing a power switch electrical signal.

[0029] The battery assembly is installed in a battery compartment (20) within the second partition (3). The bottom of the cylinder (1) has a cover (21) that communicates with the outside. The cover (21) is connected to the battery compartment (20). An electric button is designed on the cylinder (1) to drive the pen winding assembly (7). The second partition (3) also has a positioning part (30) for assembling the drive assembly (6), the main purpose of which is to prevent the drive assembly (6) from vibrating too much during operation.

[0030] As shown in the figure, the third partition (4) is composed of a semi-circular shell (22) and a cylindrical body (1). The semi-circular shell (22) and the inner bottom and inner top of the cylindrical body (1) are fitted with insertion holes (23) and protrusions (24). Pressing grooves (25) are provided on both sides of the semi-circular shell. The semi-circular shell (22) is designed to be transparent, so as to facilitate observation of the sharpening of the pencil inside the third partition (4). The protrusions (24) and insertion holes (23) are made of flexible material, that is, when force is applied, the semi-circular shell (22) can be separated from and assembled with the cylindrical body (1). The principle is that the force can be applied by inserting the finger into the pressing groove (25).

[0031] Meanwhile, in this technology, there is also a barrier plate (28) that blocks and opens the second pen winding assembly (7). The specific structure is shown in the figure: the upper cover (5) is also provided with a guide groove (26), a spring (27) is installed in the guide groove (26), and a barrier plate (28) is installed on the spring (27). The barrier plate (28) blocks one of the insertion holes (9), and a sliding press block (29) that can squeeze the spring (27) is provided at the upper end of the barrier plate (28). The press block (29) can open the insertion hole (9) by sliding the barrier plate (28). That is, when the spring (27) is squeezed, the other insertion hole (9) can be opened for use.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A double-hole pencil sharpener, comprising a cylindrical body (1), characterized in that: Inside the cylinder (1), from bottom to top, there is a first partition (2) at the bottom, and above the first partition (2) are a second partition (3) and a third partition (4) that are close to each other on the left and right sides. Above the second partition (3) and the third partition (4) is a cover (5). Inside the second partition (3) is a drive assembly (6). At the lower end of the cover (5) is a pen-rolling assembly (7). The pen-rolling assembly (7) is located in the third partition (4). Inside the first partition (2) is a gear set (8). The gear set (8) is connected between the drive assembly (6) and the pen-rolling assembly (7). The gear set (8) is used to drive the pen-rolling assembly (7) to rotate. The top cover (5) is provided with an insertion hole (9), through which a pencil can be inserted into the pencil sharpening assembly (7); The pencil sharpening assembly (7) includes a blade holder (10), which includes a frame (11) containing an inverted conical hole. The sidewall of the inverted conical hole contains a blade (12), and a gap (13) is left between the blade (12) and the sidewall of the inverted conical hole. The tool holder (10) has a slider (14) extending outward from the upper end. The upper cover (5) has an annular track (15) at the lower end. The slider (14) is located in the annular track (15) and can slide in an annular manner. The insertion hole (9) and the pen winding assembly (7) are matched and set into two groups.

2. A double-hole pencil sharpener according to claim 1, characterized in that: The frame (11) includes connecting columns (16) on the left and right sides. The upper end of the connecting column (16) is connected to the slider (14). The lower end of the connecting column (16) is provided with a rotating shaft (17) connected to the gear set (8). The lower end of the rotating shaft (17) is provided with a positioning groove (18). A positioning block (19) is provided between the gear set (8) and the rotating shaft (17). The positioning block (19) and the positioning groove (18) can be engaged.

3. A double-hole pencil sharpener according to claim 1, characterized in that: The second compartment (3) also contains a battery compartment (20). The bottom of the cylinder (1) is provided with an opening (21) that communicates with the outside. The opening (21) is connected to the battery compartment (20).

4. A double-hole pencil sharpener according to claim 1, characterized in that: The third partition (4) is assembled from a semi-arc shell (22) and a cylinder (1). The semi-arc shell (22) and the inner bottom and inner top of the cylinder (1) are fitted with insertion holes (23) and protrusions (24). The two sides of the semi-arc shell are provided with pressing grooves (25).

5. A double-hole pencil sharpener according to claim 1, characterized in that: The top cover (5) is also provided with a guide groove (26), a spring (27) is installed in the guide groove (26), a baffle plate (28) is installed on the spring (27), the baffle plate (28) blocks one of the insertion holes (9), and a sliding press block (29) is provided at the upper end of the baffle plate (28) to press the spring (27). The press block (29) can open the insertion hole (9) by sliding the baffle plate (28).

6. A double-hole pencil sharpener according to claim 1, characterized in that: The second partition (3) is provided with a positioning part (30) for assembling the drive assembly (6). An assembly edge (31) for assembling the blade (12) is provided between the side wall of the inverted conical hole and the side wall connecting column (16). The assembly edge (31) is provided with screw holes (32).

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