CN219214567U - Pen clamping assembly and electric pencil sharpener applied to same - Google Patents

Abstract

The utility model discloses a pencil clamping component and an electric pencil sharpener applied by the pencil clamping component, wherein the pencil clamping component comprises: an upper cover having a pen-feeding passage; the rubber ring is inlaid in the pen inlet channel, the pencil is in sliding fit with the rubber ring along the axial direction, and the pencil is in elastic connection with the upper cover along the radial direction through the rubber ring. The utility model provides a pen clamping assembly, which replaces the pen clamping assembly in the prior art by a rubber ring, and the rubber ring has a simple structure and is convenient to install and suitable for large-scale application.

Description

Pen clamping assembly and electric pencil sharpener applied to same

Technical Field

The utility model relates to the technical field of electric pencil sharpeners, in particular to a pencil clamping assembly and an electric pencil sharpeners applied by the pencil clamping assembly.

Background

The electric pencil sharpener can be roughly classified into a straight blade type and a hob type according to the shape of the sharpener head. The axial height of the hob type hob is higher than that of the straight blade type hob, and a gear ring meshed with the hob needs to be additionally arranged on a hob cover of the hob so that the hob rotates while revolving around the hob. Therefore, the electric pencil sharpener of the straight blade type can be made smaller in volume than the hob type.

The pen clamping assembly is generally arranged at the position of the pen feeding channel and used for clamping the pen body, so that the constraint force between the pen body and the shell is increased, and the phenomenon that the pen body rotates synchronously along with the cutter frame and idles is avoided, so that the pencil sharpening operation cannot be performed. The pencil clamping component is one of indispensable components of the automatic pencil sharpener, and how to simplify the structure is a difficult problem for designers.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, the present utility model proposes a pen clip assembly.

The utility model also provides an electric pencil sharpener with the pencil clamping assembly.

The technical scheme adopted by the utility model is as follows: there is provided a pen clip assembly comprising:

an upper cover having a pen-feeding passage;

the rubber ring is inlaid in the pen inlet channel, the pencil is in sliding fit with the rubber ring along the axial direction, and the pencil is in elastic connection with the upper cover along the radial direction through the rubber ring.

After the structure is adopted, the rubber ring is fixed relative to the upper cover, and the pencil is elastically connected with the upper cover through the rubber ring, so that the pencil point is clamped. When sharpening, the rubber ring restrains the pencil body, and the pencil is prevented from idling due to synchronous rotation of the pencil along with the knife rest. Compared with the prior art, the rubber ring has simple structure and convenient installation, and is suitable for large-scale application.

According to one embodiment of the utility model, the rubber ring has internal teeth matching the hexagonal pencil outer Zhou Shi; the internal teeth are used for increasing friction force between the inner ring of the rubber ring and the periphery of the pencil.

According to one embodiment of the utility model, the rubber ring has a profiled outer contour; the arrangement of the outer contour structure is used for increasing friction force between the outer ring of the rubber ring and the installation position.

According to one embodiment of the utility model, the rubber ring is in interference fit with the pencil; when the pencil is inserted, the inner hole is enlarged and deformed by the elasticity of the rubber ring so as to be sleeved on the pencil body.

According to one embodiment of the utility model, the pen clamping assembly further comprises a decorative cover and a mounting piece, wherein the decorative cover is detachably connected with the upper cover, the mounting piece is arranged between the decorative cover and the upper cover, the decorative cover, the mounting piece and the upper cover are combined to form the pen feeding channel, and the rubber ring is embedded and mounted on the mounting piece.

According to one embodiment of the utility model, the mounting member has an internal bore that mates with the rubber ring outer Zhou Shi.

An electric pencil sharpener comprising any one of the above pencil clamping assemblies.

According to one embodiment of the utility model, a pen blocking block is arranged on a straight blade type knife rest rotatably connected with an upper cover, a sliding piece is slidably arranged on a bottom shell of the electric pencil sharpener, a step surface is arranged on the sliding piece, and the pen blocking block is propped against the step surface through a touch rod.

According to one embodiment of the utility model, the bottom shell is provided with an adjusting piece, and the adjusting piece is connected with the sliding piece and used for driving the sliding piece to move.

According to one embodiment of the present utility model, the bottom case is fixedly provided with a battery.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of an electric pencil sharpener in an embodiment of the present utility model;

FIG. 2 is a partial exploded view of the electric pencil sharpener of the present utility model;

FIG. 3 is a vertical sectional view of the electric pencil sharpener in the embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of the electric pencil sharpener according to the embodiment of the present utility model with the middle case removed;

FIG. 6 is a schematic view of the attachment of a tool post in an embodiment of the utility model;

FIG. 7 is a partial exploded view of an electric pencil sharpener in an embodiment of the present utility model;

FIG. 8 is a partial cross-sectional view of an electric pencil sharpener in an embodiment of the present utility model;

FIG. 9 is a schematic illustration of the coupling of a reduction gear assembly to a tool post in accordance with an embodiment of the utility model;

FIG. 10 is an exploded view of a drive assembly according to an embodiment of the present utility model;

FIG. 11 is a perspective view of a slider according to an embodiment of the present utility model;

FIG. 12 is a top view of the electric pencil sharpener with the upper cover removed in an embodiment of the present utility model;

FIG. 13 is a top view of a rubber ring in another embodiment of the utility model;

FIG. 14 is a top view of a rubber ring in a further embodiment of the utility model.

The reference numerals in the figures illustrate:

1. an upper cover; 2. a middle shell; 3. a bottom case; 4. a decorative cover; 5. a rubber ring; 6. an adjusting member; 7. a tool holder; 8. a reduction gear assembly; 9. a battery; 10. a pen blocking block; 11. a touch lever; 12. a motor; 13. a slider; 14. a transmission member; 15. a work switch; 16. a mounting member;

8a, an input gear; 8b, an output gear; 8c, a rotating shaft;

5a, internal teeth; 5b, an outer profile structure;

13a, a body; 13b, step surfaces; 13c, an extension rod.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1 to 4, in the present embodiment, a pen clip assembly is disclosed, including:

an upper cover 1 with a pen inlet channel;

the rubber ring 5 is embedded in the pen feeding channel, the pencil is in sliding fit with the rubber ring 5 along the axial direction, and the pencil is in elastic connection with the upper cover 1 along the radial direction through the rubber ring 5.

Further, the housing of the electric pencil sharpener is divided into an upper cover 1, a middle housing 2 and a bottom housing 3, the middle housing 2 is fixedly connected with the bottom housing 3, and the upper cover 1 is detachably connected with the middle housing 2. The upper cover 1 and the middle shell 2 are enclosed to form a chip cavity. The blade holder 7 of the electric pencil sharpener is located in a chip cavity for storing the cut pencil chips.

Further, in this embodiment, the rubber ring 5 is fixedly connected with the pen feeding channel, so that idle rotation generated by relative rotation between the outer ring of the rubber ring 5 and the pen feeding channel when the pen is clamped by the pen clamping assembly is avoided.

Further, in the present embodiment, the upper cover 1, the pen-feeding passage and the rubber ring 5 are coaxially arranged, and the axial direction of the pencil, i.e., the axial direction of the rubber ring 5.

Specifically, as shown in fig. 13, the rubber ring 5 has internal teeth 5a fitted to the hexagonal pencil outer side Zhou Shi.

Further, in another embodiment, internal teeth 5a are provided on the inner ring of the rubber ring 5 circumferentially around the axis, the internal teeth 5a having a tooth-like structure of not less than the number of pencil corners to be sharpened. For example, in the present embodiment, the pencil is a hexagonal pencil, and the internal teeth 5a have a number of tooth-like structures not less than six. When the pencil is inserted, six tooth-shaped structures in the inner teeth 5a correspond to the edge angle positions of the pencil, and are used for increasing the friction force between the inner ring of the rubber ring 5 and the pencil.

In particular, as shown in connection with fig. 14, in another embodiment, the rubber ring 5 has a profiled outer contour 5b.

Further, the profile includes regular patterns and irregular patterns. The regular pattern includes a polygonal structure, for example, in another embodiment, the outer ring of the rubber ring 5 is of a hexagonal structure, and the pen-feeding channel has an inner hole adapted to the outer ring for increasing the torsion resistance between the rubber ring 5 and the pen-feeding channel.

Specifically, in another embodiment, the rubber ring 5 is an interference fit with the pencil.

Further, when the pencil is inserted, the inner hole is enlarged and deformed by the elasticity of the rubber ring 5 so as to be sleeved on the pencil body.

Specifically, as shown in fig. 2, the pen clamping assembly further includes a decorative cover 4 and a mounting member 16, the decorative cover 4 is detachably connected with the upper cover 1, the mounting member 16 is configured between the decorative cover 4 and the upper cover 1, the decorative cover 4, the mounting member 16 and the upper cover 1 are combined to form the pen feeding channel, and the rubber ring 5 is mounted on the mounting member 16 in a jogged manner.

Further, in this embodiment, the center of the upper cover 1 is recessed downward to form a mounting groove, the mounting member 16 is fixedly mounted in the mounting groove, and the decoration member is connected with the upper cover 1 to cover the mounting member 16, so as to avoid the mounting member 16 from sliding relatively to the upper case in the axial direction.

Further, as shown in connection with fig. 4, in the present embodiment, the upper end of the tool post 7 is rotatably engaged with the upper cover 1. In order to increase the rotation stability of the tool rest 7, the upper end of the tool rest 7 is matched with the shaft hole of the upper cover 1. The installation piece 16 provides an installation structure for the rubber ring 5 and can also carry out clearance treatment for the upper end of the tool rest 7.

Specifically, the mounting member 16 has an inner hole adapted to the outer periphery of the rubber ring 5.

In another embodiment, as shown in connection with fig. 5-12, an electric pencil sharpener is disclosed, including the pencil clamping assembly described in this embodiment.

Further, as shown in fig. 9 and 10, in another embodiment, the middle case 2 is covered with the upper cover 1 to form a chip cavity, and the middle case 2 is covered with the bottom case 3 to form a mounting cavity. A reduction gear assembly 8, a motor 12 and a battery 9 are arranged in the installation cavity, a gear on the shaft of the motor 12 is meshed with an input gear 8a in the reduction gear assembly 8, a rotating shaft 8c is coaxially arranged on an output gear 8b in the reduction gear assembly 8, and the rotating shaft 8c stretches into the chip cavity to be detachably connected with the bottom of the tool rest 7.

Specifically, a pen blocking block 10 is arranged on the straight blade type knife rest 7 rotatably connected with the upper cover 1, a sliding piece 13 is slidably arranged on the bottom shell 3 of the electric pencil sharpener, a step surface 13b is arranged on the sliding piece 13, and the pen blocking block 10 is propped against the step surface 13b through a touch rod 11.

Further, through holes are formed in the bottoms of the rotating shaft 8c and the tool rest 7, and the touch rod 11 is in sliding fit with the through holes. The bottom end of the touch rod 11 abuts against the step surface 13b, and the upper end passes through and extends out of the rotating shaft 8c. When the knife rest 7 is connected with the rotating shaft 8c, the upper end of the touch rod 11 passes through the through hole on the knife rest 7 and abuts against the pen blocking block 10.

Further, in another embodiment, the rotating shaft 8c is formed by extending upward from the center of the output gear 8b, and the through hole on the rotating shaft 8c penetrates the upper and lower surfaces of the output gear 8 b. As shown in fig. 3, the bottom end of the touch lever 11 penetrates through and extends out of the output gear 8b in the reduction gear assembly 8, and abuts against the step surface 13 b.

Specifically, the bottom shell 3 is provided with an adjusting member 6, and the adjusting member 6 is connected with the sliding member 13 and is used for driving the sliding member 13 to move.

Further, in another embodiment, the adjusting member 6 is rotatably mounted on the bottom shell 3, and a part of the periphery of the adjusting member 6 is exposed through an opening at the joint of the bottom shell 3 and the middle shell 2, so that the adjusting member 6 can be manually rotated, and the sliding member 13 is driven to move by the adjusting member 6. The position where the slider 13 moves is different, and the position where the touch lever 11 abuts against the step surface 13b is different. When the pen blocking block 10 is abutted against the touch rod 11, the height position of the pen blocking block relative to the knife rest 7 is different, so that the thickness of the cut pencil is adjusted.

Further, as shown in connection with fig. 11, in another embodiment, the slider 13 includes a body 13a slidably fitted with the bottom case 3, the body 13a having a step surface 13b provided obliquely downward, the step surface 13b having a plurality of steps thereon, a single step corresponding to the height of the single pencil block 10, i.e., a single step corresponding to the thickness of a single pencil. The body 13a is also provided with an extension rod 13c extending towards one side, the extension rod 13c is provided with a waist-shaped hole, and the adjusting piece 6 is provided with a positioning column which can be slidably matched with the waist-shaped hole.

Specifically, a transmission member 14 and a working switch 15 are mounted at the bottom of the reduction gear assembly 8, and the transmission member 14 is respectively abutted against the triggering ends of the output gear 8b and the working switch 15 for transmitting the force of the axial movement of the output gear 8b to the working switch 15.

Further, an elastic member is provided between the transmission member 14 and the bottom case 3, and the elastic member has an elastic tendency to keep the transmission member 14 against the output gear 8 b.

In another embodiment, the working principle of the electric pencil sharpener is as follows:

firstly, a pencil is fed through a pencil feeding channel, the end of the pencil is propped against a cutter rest 7, the cutter rest 7 moves axially due to downward pressing, and the cutter rest 7 drives an output gear 8b to move downward through a rotating shaft 8c. The output gear 8b triggers and opens the working switch 15 through the transmission member 14, the control circuit receives a coupling signal from the working switch 15 and controls the motor 12 to start working, and the motor 12 drives the tool rest 7 to rotate relative to the pencil through the reduction gear assembly 8 so as to cut the pencil. The pencil is continuously pressed into the pencil until the pencil point is propped against the pencil blocking block 10, the pencil is stopped being pressed, the transmission part 14 is sprung open under the action of the elastic part, the working switch 15 is closed, the control circuit receives the coupling signal from the working switch 15 to control the motor 12 to stop the operation, and the pencil can be pulled out to finish the pencil sharpening operation.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A pen clip assembly, comprising:

an upper cover (1) with a pen inlet channel;

the pencil is characterized by comprising a rubber ring (5), wherein the rubber ring (5) is inlaid in the pencil inlet channel, the pencil is in sliding fit with the rubber ring (5) along the axial direction, and the pencil is in elastic connection with the upper cover (1) along the radial direction through the rubber ring (5).

2. A pen clip assembly as defined in claim 1, wherein: the rubber ring (5) has an internal tooth (5 a) which is matched with the hexagonal pencil outer Zhou Shi.

3. A pen clip assembly as defined in claim 2, wherein: the rubber ring (5) has a profiled outer contour (5 b).

4. A pen clip assembly as defined in claim 1, wherein: the rubber ring (5) is in interference fit with the pencil.

5. A pen holder assembly according to any one of claims 1-4, wherein: the pen feeding device is characterized by further comprising a decorative cover (4) and an installation piece (16), wherein the decorative cover (4) is detachably connected with the upper cover (1), the installation piece (16) is configured between the decorative cover (4) and the upper cover (1), the decorative cover (4), the installation piece (16) and the upper cover (1) are combined to form the pen feeding channel, and the rubber ring (5) is embedded and installed on the installation piece (16).

6. A pen clip assembly as defined in claim 5, wherein: the mounting piece (16) is provided with an inner hole matched with the outer Zhou Shi of the rubber ring (5).

7. An electric pencil sharpener, characterized in that: a pen clip assembly comprising any one of claims 1-6.

8. The electric pencil sharpener of claim 7, wherein: the pen blocking block (10) is arranged on the straight blade type knife rest (7) which is rotatably connected with the upper cover (1), a sliding piece (13) is slidably arranged on the bottom shell (3) of the electric pencil sharpener, a step surface (13 b) is arranged on the sliding piece (13), and the pen blocking block (10) is propped against the step surface (13 b) through the touch rod (11).

9. The electric pencil sharpener of claim 8, wherein: an adjusting piece (6) is arranged on the bottom shell (3), and the adjusting piece (6) is connected with the sliding piece (13) and used for driving the sliding piece (13) to move.

10. An electric pencil sharpener as in any one of claims 8-9, wherein: and a battery (9) is fixedly arranged on the bottom shell (3).

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