Ash discharging pencil stopping block, ash discharging knife rest and pencil sharpener

Abstract

The utility model discloses an ash discharging pencil stopping block, an ash discharging knife rest and a pencil sharpener, and belongs to the technical field of pencil sharpeners, the ash discharging pencil stopping block comprises a mounting base and a movable block, a sliding groove is formed in the mounting base in the vertical direction, the movable block is installed in the sliding groove, the sliding groove penetrates through the top face and the bottom face of the mounting base, an ash discharging groove is formed in the back face of the mounting base, and the movable block is installed in the ash discharging groove. The top face of the movable block is used for making contact with the tip of the pencil, and the pencil moves downwards to push the movable block to move downwards along the sliding groove. The ash discharging groove communicated with the sliding groove is designed for discharging ash, and lead ash can be discharged through centrifugal force generated by rotation of the knife rest in the pencil sharpening process of the pencil sharpener.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pencil sharpeners, in particular to a dust discharge blocking block, a dust discharge knife holder and a pencil sharpener. BACKGROUND

[0002] In the existing pencil sharpener technology, the knife holder is generally provided with a pencil storage bin, one side of the pencil storage bin is provided with a rolling cutter for cutting pencils, and a blocking block is usually installed below the pencil storage bin. The main function of the blocking block is to control the feeding of the pencil to ensure the stability of the pencil during cutting. However, during the cutting of the pencil, part of the pencil dust generated will accumulate around the blocking block. The accumulation of such dust will limit the movement of the blocking block, thereby affecting its normal work.

[0003] The blocking block of the pencil sharpener in the prior art is usually connected with a delay device. The function of the delay device is to control the knife holder assembly to continue cutting for a period of time after the cutting of the pencil tip contour is completed to polish the pencil tip surface to make it smooth. However, when the pencil dust accumulates at the blocking block, the movement of the blocking block becomes inflexible, and it may even be stuck. This not only affects the normal movement of the blocking block, but also may cause problems in the response of the delay device, thereby affecting the working efficiency and use experience of the entire pencil sharpener.

[0004] Therefore, it is necessary to solve the problem of accumulation of pencil dust in the dust discharge assembly of the knife holder. Chinese Patent Application "A Dust Discharge Knife Holder, a Knife Set with the Knife Holder and a Pencil Sharpener", Application No. CN202221994745.0, discloses a knife holder comprising a holder body, the upper and lower ends of the holder body are respectively provided with a pencil storage bin and a cylindrical connecting part, the connecting part is connected with a connecting key, the connecting part is provided with a dust discharge structure, and the dust discharge structure is used to discharge the pencil dust and / or wood chips below the connecting part to the outside. The dust discharge structure comprises one or more discharge parts, and the discharge parts are formed by extending downward from the lower end of the connecting part.

[0005] The above-mentioned dust discharge knife holder is formed by extending the discharge part downward from the lower end of the connecting part. This is to add a discharge structure to the structure of the knife holder. The present application considers designing a new dust discharge scheme to realize the dust discharge of the knife holder of the pencil sharpener, which can effectively remove or reduce the accumulation of dust. CONTENT OF THE UTILITY MODEL

[0006] The technical problem to be solved by the present application is to provide a dust discharge blocking block, a dust discharge knife holder and a pencil sharpener. A dust discharge groove in communication with the sliding groove is designed for dust discharge, and the centrifugal force generated by the rotation of the knife holder during the cutting of the pencil sharpener can discharge the pencil dust.

[0007] The technical scheme adopted by the present application is: the ash discharging and pencil blocking block comprises a mounting seat and a movable block, the mounting seat is provided with a sliding groove in the vertical direction, the movable block is installed in the sliding groove, the sliding groove penetrates the top surface and the bottom surface of the mounting seat, the back surface of the mounting seat is provided with an ash discharging groove, the ash discharging groove is communicated with the sliding groove, the top surface of the movable block is used for contacting the pencil tip, and the pencil is pushed downward to drive the movable block to move downward along the sliding groove.

[0008] Compared with the prior art, the present application has the advantages that the traditional pencil blocking block is a pencil blocking block insert fixed in the pencil blocking block, and the two are assembled to move up and down together. The present application cancels the pencil blocking block and replaces it with a fixed structure, which is internally provided with a sliding groove, and the movable block moves up and down inside. The movable block is designed to function as the traditional pencil blocking block, specifically, the top surface of the movable block is used for contacting the pencil tip, and the pencil is pushed downward to drive the movable block to move downward along the sliding groove. In addition, the present application uses the movable block as the moving part, the sliding groove opening for installing the movable block is small, which can effectively prevent the pencil shavings from entering the sliding groove. The back surface of the mounting seat is provided with an ash discharging groove, and the ash discharging groove is communicated with the sliding groove. Therefore, the lead ash (fine ash generated by pencil lead cutting) entering the sliding groove can be discharged through the ash discharging groove. Especially when applied in a pencil sharpener, the ash discharging and pencil blocking block of the present application will rotate with the knife holder, and the centrifugal force generated by the rotation around the shaft can drive the lead ash to be smoothly discharged from the ash discharging groove.

[0009] In some embodiments of the present application, the cross section of the sliding groove is in a T-shaped structure, the structure of the sliding groove is matched with the structure of the sliding groove, and the sliding groove comprises a back plate and a protruding strip protruding on the back plate, the back plate is embedded in the sliding groove, and the protruding strip is partially protruding out of the sliding groove.

[0010] The T-shaped sliding groove can effectively limit the movement range of the movable block, thereby ensuring its stability during movement and avoiding shaking to affect the performance of the pencil sharpener. The T-shaped sliding groove makes the opening area of the sliding groove smaller, which blocks the pencil shavings generated by pencil cutting outside, which can greatly avoid the blockage below the movable block.

[0011] In some embodiments of the present application, the top surface of the protruding strip extends to the front side to form an abutting surface. The above design effectively increases the contact surface of the movable block and the pencil tip, thereby ensuring the reliability of the movable block as a pencil blocking function.

[0012] In some embodiments of the present application, the bottom of the protruding strip extends a stop block to the front, the stop block is protrudingly arranged outside the sliding groove, and the front side surface of the protruding strip is smoothly transitioned. The front side surface of the protruding strip is smoothly transitioned, which can avoid the accumulation of ash. The setting of the stop block can effectively block a part of the ash falling from above from entering the sliding groove below the movable block.

[0013] In some embodiments of the present application, the front side of the mounting seat is designed in a stepped shape, and the thickness of the lower part of the mounting seat is greater than that of the upper part of the mounting seat. The structure of the mounting seat with varying thickness can avoid interference with other structures in the knife holder, and the relatively thin upper part can further improve the stability of the movement of the movable block.

[0014] The pencil sharpener with the ash removal block also has good ash removal effect, and effectively avoids the ash generated by pencil cutting from blocking the block, thereby affecting the performance of the sharpener.

[0015] In some embodiments of the present application, the mounting seat is fixedly installed on the knife holder, the top surface of the movable block is opposite to the central axis of the pencil storage bin, and the length direction of the sliding groove is parallel to the central axis of the pencil storage bin. Fixing the mounting seat on the knife holder can ensure the stability of the movable block during cutting, reduce displacement caused by vibration or external force, and improve the working accuracy of the sharpener. By optimizing the installation position and direction of the movable block, the risk of failure caused by asymmetry or misalignment of components can be reduced, and the durability and reliability of the sharpener can be improved.

[0016] In some embodiments of the present application, the two sides of the mounting seat extend outward to form mounting plates, and the mounting seat is clamped with the knife holder through the mounting plates. The clamping design of the mounting plates and the knife holder makes the installation and disassembly process more convenient, and the assembly can be quickly completed, thereby reducing the assembly cost.

[0017] The mounting plates extending outward on both sides increase the contact area, disperse the force applied on the mounting seat, reduce local stress concentration, and thereby improve the durability and reliability. This design makes the mounting seat adapt to knife holders of different models or designs by only changing the structure of the mounting plates, thereby providing greater flexibility and facilitating use in different sharpeners.

[0018] The pencil sharpener includes the ash removal block. The pencil sharpener with the ash removal block also has good ash removal effect, and effectively avoids the ash generated by pencil cutting from blocking the block, thereby affecting the performance of the sharpener.

[0019] On the basis of common sense in the art, the above-mentioned embodiments can be combined arbitrarily. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described objects and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 Schematic diagram of the use state one of the ash-discharging pen block in the present application Figure 1 ;

[0022] Figure 2 Schematic diagram of the use state one of the ash-discharging pen block in the present application Figure 2 ;

[0023] Figure 3 Schematic diagram of the use state two of the ash-discharging pen block in the present application

[0024] Figure 4 Schematic diagram of the structure of the ash-discharging holder in the present application.

[0025] Among them, the specific description of the reference signs is as follows: 1, mounting seat; 2, movable block; 21, convex strip; 21a, abutting surface; 22, back plate; 23, stop block; 3, sliding groove; 4, ash-discharging groove; 5, mounting plate; 6, holder; 7, pen storage compartment. DETAILED DESCRIPTION

[0026] The present application will be further described in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described objects and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0027] The present application will be further described in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described objects and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0028] The ash-discharging pen block, embodiment one is as Figures 1 to 3As shown: including the mounting seat 1 and the movable block 2, the mounting seat 1 is provided with a sliding groove 3 in the vertical direction, the movable block 2 is installed in the sliding groove 3, the sliding groove 3 penetrates the top surface and the bottom surface of the mounting seat 1, the movable block 2 is used as a moving part, the opening of the sliding groove 3 for installing the movable block 2 is small, which can well avoid the wood chips of the pencil entering the sliding groove 3. The back surface of the mounting seat 1 is provided with an ash chute 4, the ash chute 4 is communicated with the sliding groove 3, so that the lead ash (fine ash produced by pencil core cutting) entering the sliding groove 3 can be guided out through the ash chute 4. Especially when applied in the pencil sharpener, the ash blocking pencil block of the application will rotate with the knife holder 6, and the centrifugal force of the rotation around the shaft can drive the lead ash to be smoothly discharged from the ash chute 4. The top surface of the movable block 2 is used to contact the pencil tip, and the pencil is pushed downward to drive the movable block 2 to move downward along the sliding groove 3.

[0029] The pencil blocking block structure is split into the mounting seat 1 and the movable block 2, the mounting seat 1 is designed to be fixedly installed to provide a stable movement space for the movable block 2. The movable block 2 is designed to serve as the function of the traditional pencil blocking block.

[0030] The cross section of the sliding groove 3 is in T-shaped structure, the structure of the sliding groove 3 is matched with the structure of the sliding groove 3, the sliding groove 3 includes a back plate 22 and a convex strip 21 protruding on the back plate 22, the back plate 22 is embedded in the sliding groove 3, and the convex strip 21 is partially protruding from the sliding groove 3. The T-shaped structure of the sliding groove 3 can effectively limit the movement range of the movable block 2, so as to ensure its stability during movement and avoid shaking to affect the performance of the pencil sharpener. The T-shaped structure of the sliding groove 3 makes the opening area of the sliding groove 3 smaller, which can block the wood chips produced by pencil cutting outside, which can greatly avoid the blockage below the movable block 2.

[0031] The top surface of the convex strip 21 extends to the front side to form an abutting surface 21a. The above design effectively increases the contact surface of the movable block 2 and the pencil tip, thereby ensuring the reliability of the movable block 2 as a pencil blocking function.

[0032] The bottom of the convex strip 21 extends a stop block 23 forward, the stop block 23 is protrudingly arranged outside the sliding groove 3, and the front side surface of the convex strip 21 is smoothly transitioned. The front side surface of the convex strip 21 is smoothly transitioned, which can avoid the accumulation of ash. The setting of the stop block 23 can effectively block a part of the ash falling from above from entering the sliding groove 3 below the movable block 2.

[0033] The front side surface of the mounting seat 1 is designed to be stepped, and the thickness of the lower part of the mounting seat 1 is greater than that of the upper part of the mounting seat 1. The mounting seat 1 with varying thickness is adopted, the upper part of which is relatively thin to avoid interference with other structures in the knife holder 6, and the lower part of which is relatively thick to further improve the stability of the movement of the movable block 2.

[0034] Ash removal knife holder, Example 2, as follows Figure 4 As shown, the device includes a blade holder 6, on which a pencil compartment 7 is provided, and below the pencil compartment 7, a dust removal and pencil blocking block is provided. The dust removal blade holder 6 uses the dust removal and pencil blocking block of this application, which also has a good dust removal effect and effectively prevents the dust generated by pencil cutting from clogging the pencil blocking block and affecting the performance of the pencil sharpener.

[0035] The mounting base 1 is fixedly mounted on the tool holder 6. The top surface of the movable block 2 is opposite to the central axis of the pencil compartment 7, and the length direction of the slide groove 3 is parallel to the central axis of the pencil compartment 7. Fixing the mounting base 1 to the tool holder 6 ensures that the movable block 2 remains stable during cutting, reducing displacement caused by vibration or external force, thereby improving the working accuracy of the pencil sharpener. By optimizing the installation position and orientation of the movable block 2, the risk of failure caused by component asymmetry or misalignment can be reduced, improving the durability and reliability of the pencil sharpener. Like a traditional pencil block, the movable block 2 in this application is connected to a transmission rod inside the pencil sharpener. The transmission rod applies force, keeping the movable block 2 in a high position, slightly below the pencil compartment 7, when not subjected to the pushing force of the pencil. The structure of the transmission rod is not shown in the accompanying drawings of this application, but those skilled in the art can fully understand it from the text.

[0036] The mounting base 1 extends outwards on both sides to form mounting plates 5, which are used to engage with the tool holder 6. This engagement design simplifies installation and disassembly, allowing for quick assembly and reducing assembly costs. The outward-extending mounting plates 5 increase the contact area, dispersing the force applied to the mounting base 1 and reducing localized stress concentration, thereby improving durability and reliability. This design allows the mounting base 1 to adapt to different models or designs of tool holders 6 simply by modifying the structure of the mounting plates 5, providing greater flexibility for use in various pencil sharpeners.

[0037] The pencil sharpener, in embodiment three, includes the aforementioned dust removal blade holder. The dust removal blade holder utilizes the dust removal and blocking block described in this application, which also provides excellent dust removal, effectively preventing dust generated during pencil cutting from clogging the blocking block and affecting the pencil sharpener's performance.

[0038] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications 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. An ash blocking wiper block, characterized in that Including mounting seat (1) and movable block (2), the mounting seat (1) is opened with sliding slot (3) along the vertical direction, the movable block (2) is installed in sliding slot (3), the sliding slot (3) penetrates the top surface and the bottom surface of mounting seat (1), the back surface of mounting seat (1) is opened with ash chute (4), the ash chute (4) is communicated with sliding slot (3), the top surface of movable block (2) is used to contact with pencil nib, and the pencil is pushed down to drive movable block (2) to move down along sliding slot (3).

2. The ash resist eraser piece of claim 1, wherein, The cross section of the sliding slot (3) is T-shaped structure, the sliding slot (3) is adapted to the structure of sliding slot (3), and the sliding slot (3) includes back plate (22) and convex strip (21) which is convexly arranged on the back plate (22), the back plate (22) is embedded in the sliding slot (3), and the convex strip (21) is partially arranged outside the sliding slot (3).

3. The ash resist eraser piece of claim 2, wherein, The top surface of the convex strip (21) extends to the front side to form abutting surface (21a).

4. The ash resist eraser piece of claim 2 or 3, wherein, The bottom of the convex strip (21) extends a stop block (23) to the front, the stop block (23) is convexly arranged outside the sliding slot (3), and the front side surface of the convex strip (21) is smoothly transitioned.

5. The ash resist of claim 1, wherein The front side surface of the mounting seat (1) is designed as stepped shape, and the thickness of the lower part of the mounting seat (1) is greater than the thickness of the upper part of the mounting seat (1).

6. A dust knife holder, characterized in that Including knife holder (6), the knife holder (6) is provided with pencil containing bin (7), and the lower part of the pencil containing bin (7) is provided with ash blocking pencil block as claimed in any one of claims 1-5.

7. The ash removal blade holder according to claim 6, characterized in that The mounting seat (1) is fixedly installed on the knife holder (6), the top surface of the movable block (2) is opposite to the central axis of the pencil containing bin (7), and the length direction of the sliding slot (3) is parallel to the central axis of the pencil containing bin (7).

8. A drawknife according to claim 6 or 7, characterised in that, Both sides of the mounting seat (1) extend outward to form mounting plate (5), and the mounting seat (1) is clamped with the knife holder (6) through the mounting plate (5).

9. A sharpener characterized by Including ash knife holder (6) as claimed in any one of claims 6-8.

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