Knife holder with dust cover and pencil sharpener

Abstract

The application discloses a knife rest with a dustproof cover and a pencil sharpener and belongs to the technical field of pencil sharpeners. The pencil sharpener comprises a dustproof cover and a knife rest. A hobbing cutter assembly is arranged on the front side of the knife rest. An open end is arranged on the rear side of the knife rest. The dustproof cover is clamped on the rear side of the knife rest. The dustproof cover comprises a top plate and a side wall plate arranged below the edge of the top plate. The top plate is connected to the top surface of the open end. The top plate extends into the open end. The side wall plate covers the outer periphery of the open end. A gap is formed between the bottom surface of the knife rest and the side wall plate, thereby forming a chip removal opening. The dustproof cover structure is additionally arranged on the knife rest. The dustproof cover blocks the position of the knife rest where dust is easily accumulated. The dustproof cover effectively prevents dust accumulation on the bottom of the knife rest.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pencil sharpeners, in particular to a knife rest with a dust prevention cover and a pencil sharpener. BACKGROUND

[0002] In the existing pencil sharpener technology, the knife rest is generally provided with a pencil containing bin, a side of the pencil containing bin is provided with a rolling cutter for cutting a pencil, and a pencil blocking block is usually arranged below the pencil containing bin. The main function of the pencil blocking block is to control the feeding of the pencil and ensure that the pencil remains stable during the cutting process. However, during the cutting process of the pencil, part of the pencil dust generated will accumulate at the bottom of the knife rest. The accumulation of such dust will limit the movement of some rotating parts, such as the pencil blocking block, thereby affecting the normal operation thereof.

[0003] Therefore, it is necessary to solve the problem of accumulation of pencil dust in the dust removal assembly of the knife rest. The Chinese patent application "A dust removal knife rest and a knife set and pencil sharpener with the same", application number: CN202221994745.0, discloses a dust removal knife rest comprising a frame body, the upper and lower ends of the frame body are provided with a pencil containing bin and a cylindrical connecting part, respectively, the connecting part is used for being connected with a connecting key, the connecting part is provided with a dust removal structure, and the dust removal structure is used for moving the pencil dust and / or wood chips below the connecting part to the outside. The dust removal structure comprises one or more chip removal parts, and the chip removal parts are formed by extending downward from the lower end of the connecting part.

[0004] The above-mentioned dust removal knife rest is formed by extending the chip removal parts downward from the lower end of the connecting part. This is to add a chip removal structure to the knife rest structure. The present application considers designing a new dust removal scheme to realize the dust removal of the knife rest of the pencil sharpener, which can effectively remove or reduce the accumulation of dust. CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the present application is to provide a knife rest with a dust prevention cover and a pencil sharpener. The dust prevention cover structure is added to the knife rest, and the dust prevention cover blocks the position prone to dust on the knife rest, effectively preventing the accumulation of dust at the bottom of the knife rest.

[0006] The technical scheme adopted by the present application is as follows: a knife rest with a dust prevention cover, comprising a dust prevention cover and a knife rest, a rolling cutter assembly is installed on the front side of the knife rest, and an open mouth is arranged on the rear side of the knife rest, the dust prevention cover is clamped on the rear side of the knife rest, the dust prevention cover comprises a top plate and a side wall plate below the edge of the top plate, the top plate is connected to the top surface of the open mouth, and the top plate extends into the open mouth, the side wall plate covers the outer periphery of the open mouth, and a gap is formed between the bottom surface of the knife rest and the side wall plate below the side wall plate, which constitutes a chip removal opening.

[0007] Compared with the prior art, the application has the advantages that the application fully considers that in the whole rotary cutting process of the tool holder, the flying ash falling into the bottom of the tool holder is caused by the rectangular notch on the rear side of the tool holder. However, because of the limitation of the structure of the tool holder and the setting of the installation requirements of the parts, the open structure design of the tool holder is difficult to modify. Therefore, the application additionally provides a dustproof cover on the rear side of the tool holder, and the dustproof cover is clamped with the tool holder, which is a simple and convenient installation mode. Specifically, the top plate of the dustproof cover is connected below the top surface of the opening and extends into the opening. The structure design can effectively block the ash from entering the bottom of the tool holder from the top. The side wall plate of the dustproof cover is wrapped around the outer periphery of the opening, which can block the ash from entering the bottom of the tool holder from the outer periphery. In addition, there is a gap between the lower side of the side wall plate and the bottom surface of the tool holder, which constitutes a dust discharge port. Therefore, even if the ash enters, the centrifugal force of the tool holder rotation can also throw the ash out of the dust discharge port.

[0008] In some embodiments of the application, both ends of the side wall plate extend outwardly to form mounting plates, and buckles are arranged on the mounting plates. The mounting plates are clamped with the tool holder through the buckles. By arranging the buckles on the mounting plates, quick and simple installation can be achieved. This design reduces the dependence on tools, making installation more convenient and improving work efficiency.

[0009] In some embodiments of the application, one end of the mounting plate is connected with the side wall plate, and two buckles are arranged on the other end of the mounting plate. The two buckles are arranged at intervals, and the two buckles are respectively located on the upper part and the lower part of the mounting plate. The design of the two buckles provides stronger fixing force, ensuring that the mounting plate will not loosen or shift during use. This design can improve the overall stability of the tool holder. Arranging the buckles on the upper part and the lower part of the mounting plate can evenly distribute the stress and reduce deformation or damage caused by single-point stress. This design helps to prolong the service life of the dustproof cover.

[0010] In some embodiments of the application, a longitudinal and transverse interlaced reinforcing structure assembly is arranged on the rear side of the tool holder, and the reinforcing structure assembly comprises at least one transverse reinforcing plate and at least one vertical reinforcing plate, and the transverse reinforcing plate and the vertical reinforcing plate are arranged vertically and transversely. The longitudinal and transverse interlaced reinforcing structure design can significantly improve the overall strength and rigidity of the tool holder. This design can effectively disperse and withstand forces from different directions, reducing the risk of deformation and damage of the tool holder during use.

[0011] In some embodiments of the application, a limiting piece is arranged above the top plate, the limiting piece is in a plate structure, the top surface of the opening is composed of a transverse reinforcing plate, and the limiting piece is arranged above the outer frame of the opening. The application realizes the limiting of the installation of the dustproof cover in the vertical direction through the cooperation of the limiting piece and the transverse reinforcing plate.

[0012] The limiting member is provided with a limiting groove, and one of the vertical reinforcing plates is embedded in the limiting groove. The limiting groove and the vertical reinforcing plate are matched to limit the installation of the dust cover in the horizontal direction. Specifically, the vertical reinforcing plate located at the middle position of the horizontal reinforcing plate is embedded in the limiting groove.

[0013] The plate-shaped structure of the limiting member makes the installation process more convenient, and the user can quickly and accurately install it in place, reducing the dependence on tools and improving the assembly efficiency. The limiting member is erected above the open outer frame, which can effectively utilize the space, avoid design redundancy, and maintain the compactness and aesthetics of the tool holder.

[0014] In some embodiments of the present application, the middle part of the top surface of the side wall extends upward and is connected with the limiting member, and a reinforcing rib is arranged between the limiting member and the top plate. In the present application, the one-piece structure of the dust cover and the design of the overall structure can ensure better structural strength of the product. One-piece molding can also reduce the assembly cost of the product. The middle part of the top surface of the side wall extends upward and is connected with the limiting member, and the reinforcing rib is arranged between the limiting member and the top plate, which can effectively enhance the stability of the overall structure. This design can provide additional support to prevent deformation or loosening caused by external forces during use.

[0015] In some embodiments of the present application, a dust sweeping strip is protrudingly arranged on the outer surface of the side wall, the dust sweeping strip is arranged in the vertical direction, the dust sweeping strip extends upward to the outer periphery of the limiting member, and the dust sweeping strip extends downward to the outer peripheral surface of the tool holder base. The addition of a dust sweeping strip on the outer surface of the side wall can effectively prevent the accumulation of dust during the pencil sharpening process. The dust sweeping strip extends upward to the outer periphery of the limiting member and downward to the outer peripheral surface of the tool holder base, forming an effective dust discharge channel. This design ensures that the dust can be smoothly discharged, avoiding the accumulation of dust around the dust cover. The design of the dust sweeping strip can effectively guide the dust generated during the pencil sharpening process to the outside of the tool holder, reducing the accumulation of dust inside the tool holder, which helps to keep the tool holder clean.

[0016] In some embodiments of the present application, at least one discharge groove is arranged on the top surface of the tool holder base, the discharge groove penetrates the outer peripheral surface of the tool holder base on the side where the dust sweeping strip is located, the discharge groove is arranged adjacent to the dust sweeping strip, and the discharge groove connects the top surface and the outer peripheral surface of the tool holder base. The design of the discharge groove can effectively discharge the dust generated during the pencil sharpening process, avoiding the accumulation of dust inside the tool holder. This efficient dust discharge mechanism can keep the tool holder clean and improve its working efficiency. The combination of the discharge groove and the dust sweeping strip forms a reasonable dust flow path, ensuring that the dust can be smoothly discharged from the top of the tool holder to the outside, reducing the possibility of blockage. Under the action of centrifugal force generated during the rotation of the tool holder, the dust is well discharged outward along the discharge groove.

[0017] Pencil sharpener, including the aforementioned blade holder with dust cover.

[0018] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0019] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the exploded structure of this application.

[0023] The specific descriptions of the reference numerals in the attached drawings are as follows: 1. Dust cover; 2. Tool holder; 3. Roller cutter assembly; 4. Opening; 6. Top plate; 7. Side panel; 8. Chip discharge port; 9. Mounting plate; 10. Buckle; 11. Horizontal reinforcing plate; 12. Vertical reinforcing plate; 13. Limiting component; 14. Limiting groove; 15. Reinforcing rib; 16. Dust removal strip; 17. Base; 18. Guide groove. Detailed Implementation

[0024] The present application will now be described in detail with reference to the accompanying drawings.

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] Tool holder with dust cover, as in Example 1 Figure 1 , Figure 2As shown: including the dust cover 1 and the tool holder 2, the front side of the tool holder 2 is installed with the hob assembly 3, the rear side of the tool holder 2 is provided with an open mouth 4, the dust cover 1 is clamped on the rear side of the tool holder 2, which is a simple and convenient installation method. The dust cover 1 includes a top plate 6 and a side plate 7 located below the edge of the top plate 6, the top plate 6 is connected to the top surface of the open mouth 4, and the top plate 6 extends into the open mouth 4. This structure design can effectively block the dust from entering the bottom of the tool holder 2 from the top. The side plate 7 is wrapped around the outer periphery of the open mouth 4. The design of the side plate of the dust cover 1 is wrapped around the outer periphery of the open mouth 4, which can block the dust from entering the bottom of the tool holder 2 from the outer periphery. There is a gap between the bottom of the side plate 7 and the bottom surface of the tool holder 2, which constitutes a chip removal port 8. Therefore, even if dust enters, it can be thrown out of the chip removal port 8 by the centrifugal force of the rotation of the tool holder 2.

[0027] In the second embodiment, as shown, the two ends of the side plate 7 extend outwardly to form mounting plates 9, and the mounting plates 9 are provided with buckles 10, which are clamped to the tool holder 2. By providing buckles 10 on the mounting plates 9, quick and easy installation can be achieved. This design reduces the dependence on tools, making installation more convenient and improving work efficiency. Figures 1 to 3

[0028] One end of the mounting plate 9 is connected to the side plate, and the other end of the mounting plate 9 is provided with two buckles 10, which are spaced apart and located on the upper and lower parts of the mounting plate 9. The design of the two buckles 10 provides stronger fixing force to ensure that the mounting plate 9 does not loosen or shift during use. This design can improve the overall stability of the tool holder 2. By arranging the buckles 10 on the upper and lower parts of the mounting plate 9, the stress can be evenly distributed, reducing deformation or damage caused by single-point stress. This design helps to prolong the service life of the dust cover 1.

[0029] The rear side of the tool holder 2 is provided with a longitudinal and transverse interlaced reinforcing structure assembly, which includes at least one transverse reinforcing plate 11 and at least one vertical reinforcing plate 12, which are vertically and transversely arranged. The longitudinal and transverse interlaced reinforcing structure design can significantly improve the overall strength and rigidity of the tool holder 2. This design can effectively disperse and withstand forces from different directions, reducing the risk of deformation and damage of the tool holder 2 during use.

[0030] A limiting piece 13 is arranged above the top plate 6, the limiting piece 13 is a plate-shaped structure, and the top surface of the open mouth 4 is composed of a transverse reinforcing plate 11, and the limiting piece 13 is arranged above the outer frame of the open mouth 4. The cooperation of the limiting piece 13 and the transverse reinforcing plate 11 realizes the limiting of the dust cover installation in the vertical direction.

[0031] ​The limiting member 13 is provided with a limiting groove 14 on the surface, and one of the vertical reinforcing plates 12 is partially embedded in the limiting groove 14. The cooperation between the limiting groove 14 and the vertical reinforcing plate 12 realizes the limiting of the installation of the dust cover in the horizontal direction. Specifically, the vertical reinforcing plate 12 located at the middle position of the horizontal reinforcing plate 11 is embedded in the limiting groove 14.

[0032] The plate-shaped structure design of the limiting member 13 makes the installation process more convenient, and the user can quickly and accurately install it in place, reducing the dependence on tools and improving the assembly efficiency. The limiting member 13 is erected above the outer frame of the opening 4, which can effectively utilize the space and avoid design redundancy, while maintaining the compactness and aesthetics of the tool holder 2. The middle part of the top surface of the side wall plate extends upward and is connected with the limiting member 13, and the limiting member 13 and the top plate 6 are provided with a reinforcing rib 15. In the present application, the one-piece structure of the dust cover 1 and the design of the overall structure can ensure better structural strength of the product. One-piece molding can also reduce the assembly cost of the product. The middle part of the top surface of the side wall plate extends upward and is connected with the limiting member 13, and the limiting member 13 and the top plate 6 are provided with a reinforcing rib 15, which can effectively enhance the stability of the overall structure. This design can provide additional support to prevent deformation or loosening caused by external force during use.

[0033] The outer surface of the side wall plate is provided with a dust sweeping strip 16, which is arranged in the vertical direction, and the dust sweeping strip 16 extends upward to the outer periphery of the limiting member 13 and extends downward to the outer periphery of the tool holder base 17. The addition of a dust sweeping strip 16 on the outer surface of the side wall plate can effectively prevent the accumulation of dust during the pencil sharpening process. The dust sweeping strip 16 extends upward to the outer periphery of the limiting member 13 and extends downward to the outer periphery of the tool holder base 17, forming an effective dust discharge channel. This design ensures that the dust can be smoothly discharged, avoiding the accumulation of dust around the dust cover 1. The design of the dust sweeping strip 16 can effectively guide the dust generated during the pencil sharpening process to the outside of the tool holder 2, reducing the accumulation of dust inside the tool holder 2, which helps to keep the tool holder 2 clean.

[0034] The top surface of the knife holder base 17 is provided with at least one discharge groove 18, the discharge groove 18 penetrates the outer circumferential surface of the knife holder base 17 on the side where the ash sweeping strip 16 is located, the discharge groove 18 is arranged adjacent to the ash sweeping strip 16, and the discharge groove 18 communicates the top surface and the outer circumferential surface of the knife holder base 17. The design of the discharge groove 18 can effectively and quickly discharge the pencil shavings generated during the pencil sharpening process, avoiding the accumulation of pencil shavings inside the knife holder 2. This efficient ash discharge mechanism can keep the knife holder 2 clean and improve its working efficiency. The combination design of the discharge groove 18 and the ash sweeping strip 16 forms a reasonable pencil shaving flow path, ensuring that the pencil shavings can be smoothly discharged from the top of the knife holder 2 to the outside, reducing the possibility of blockage. Under the action of the centrifugal force generated during the rotation of the knife holder 2, the pencil shavings are well discharged outward along the discharge groove 18.

[0035] The other contents of Example Two are the same as those of Example One.

[0036] The pencil sharpener of Example Three comprises the knife holder with the ash prevention cover of Example One or Example Two.

[0037] The above has described the present application in detail, and the principles and implementation modes of the present application have been described by applying specific examples. The above description of the examples is only used to help understand the present application and the core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A tool holder with a dust shield, characterized in that The dust cover (1) and the tool holder (2) are provided, the front side of the tool holder (2) is provided with a hob assembly (3), the rear side of the tool holder (2) is provided with an opening (4), the dust cover (1) is clamped on the rear side of the tool holder (2), the dust cover (1) comprises a top plate (6) and a side plate (7) below the edge of the top plate (6), the top plate (6) is connected to the top surface of the opening (4), the top plate (6) extends into the opening (4), the side plate (7) covers the outer periphery of the opening (4), and the space between the bottom surface of the tool holder (2) and the lower side of the side plate (7) constitutes a chip discharge port (8).

2. The blade holder (2) with a dust cover (1) according to claim 1, characterized in that Both ends of the side plate (7) extend outward to form a mounting plate (9), the mounting plate (9) is provided with a buckle (10), and the mounting plate (9) is clamped on the tool holder (2) through the buckle (10).

3. The tool holder (2) with a dust cover (1) according to claim 2, characterized in that One end of the mounting plate (9) is connected to the side plate, and the other end of the mounting plate (9) is provided with two buckles (10), the two buckles (10) are arranged at intervals, and the two buckles (10) are located on the upper part and the lower part of the mounting plate (9) respectively.

4. The blade holder (2) with a dust cover (1) according to claim 1, characterized in that, The rear side of the tool holder (2) is provided with a longitudinal and transverse intersecting reinforcing structure assembly, the reinforcing structure assembly comprises at least one transverse reinforcing plate (11) and at least one vertical reinforcing plate (12), and the transverse reinforcing plate (11) and the vertical reinforcing plate (12) are arranged vertically and transversely.

5. The cartridge (2) with a dust cover (1) according to claim 1 or 4, characterized in that A limiting piece (13) is arranged above the top plate (6), the limiting piece (13) is in a plate shape, the top surface of the opening (4) is formed by the transverse reinforcing plate (11), and the limiting piece (13) is arranged above the outer frame of the opening (4).

6. The blade holder (2) with a dust cover (1) according to claim 5, characterized in that A limiting groove (14) is formed in the surface of the limiting piece (13), and one of the vertical reinforcing plates (12) is partially embedded in the limiting groove (14).

7. The blade holder (2) with a dust cover (1) according to claim 5, characterized in that The middle part of the top surface of the side plate (7) extends upward and is connected to the limiting piece (13), and a reinforcing rib (15) is arranged between the limiting piece (13) and the top plate (6).

8. The blade holder (2) with a dust cover (1) according to claim 1, characterized in that, A dust sweeping strip (16) is protrudingly arranged on the outer surface of the side plate (7), the dust sweeping strip (16) is arranged in a vertical direction, the dust sweeping strip (16) extends upward to the outer periphery of the limiting piece (13), and the dust sweeping strip (16) extends downward to the outer peripheral surface of the tool holder base (17).

9. The blade holder (2) with a dust cover (1) according to claim 1, characterized in that, At least one guide groove (18) is formed in the top surface of the tool holder base (17), the guide groove (18) penetrates the outer peripheral surface of the tool holder base (17) on the side where the dust sweeping strip (16) is located, the guide groove (18) is arranged adjacent to the dust sweeping strip (16), and the guide groove (18) is connected to the top surface and the outer peripheral surface of the tool holder base (17).

10. A pencil sharpener characterized by The tool holder with the dust cover comprises the tool holder with the dust cover according to any one of claims 1-9.

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