CN206653824U - A pencil sharpener for cutting hexagonal pencil points - Google Patents

Abstract

The utility model provides a cut out pencil sharpener of hexa prismatic pencil point, includes shell, cylinder inner shell, cutting mechanism, pincerlike power transmission assembly, the shell cover is outside the cylinder inner shell, pincerlike power transmission assembly is used for connecting shell and cutting mechanism, the shell cover is outside cutting mechanism and pincerlike transmission assembly in the cylinder, and six fall the round bar structure of trapezoidal blade tail end and insert in the blade mount, and the blade mount inserts the ring channel internal fixation at cylinder inner shell top, and the locating hole on the blade is used for fixing pincerlike power transmission assembly, and the protruding strip of shell inner wall is the elasticity and replies the structure for the shell replies initial condition after external force gets rid of. This kind of penknife can cut out the hexagonal pencil point that satisfies multiple drawing requirement with single pencil, improves the rate of utilization of pencil to because the protection of the cover body, the finger can not leaked through the through-hole of cylinder shell bottom by the fish tail of cutting mechanism, and the pencil bits that cut down can not arrive and fly in disorder, the clearance of being convenient for.

Description

A pencil sharpener for cutting hexagonal pencil points

technical field

The utility model belongs to the technical field of stationery and sports articles, in particular to a pencil sharpener for cutting hexagonal pencil points.

Background technique

Pencil is an indispensable instrument for people in daily life for writing, drawing, filling and card reading. According to the specific purpose of use, there are certain requirements for the shape of the pencil lead. For example, a pen refill with a diameter of 0.5mm-1mm is used for sketching and drawing lines, and a square refill with a width of 2mm is used for the card reader of the filling machine. When painting a large area, a wider refill contact surface is required. General pencil sharpeners can only cut out conical pen cores, which cannot meet the needs of the above multiple purposes. At present, the pencil sharpener specially invented for the card reading of the filling machine can only cut out the refill with a single function and meet the card reading requirements of the filling machine, such as the patent application number 201510116056.8. Another solution is to introduce pencils with refills of different shapes, which will cause consumers to buy multiple pencils, which is not conducive to the efficient use of resources and is not easy to manage.

Contents of the invention

The utility model provides a pencil sharpener for cutting a hexagonal pencil tip, which solves the problem that the pencil lead cut out by the current pencil sharpener cannot meet various usage requirements.

The technical scheme of the utility model is: a pencil sharpener for cutting out a hexagonal pencil point, including a casing, a cylindrical inner casing, a cutting mechanism, and a pincer-shaped force transmission assembly; the casing is composed of four parts, and the The plug and jack on the shell part are connected and fixed, and are covered outside the cylindrical inner shell; the cylindrical inner shell is composed of two parts, connected and fixed by the plug and jack on the cylindrical inner shell part, and covered by cutting mechanism and pincer force transmission assembly; the cutting mechanism includes six inverted trapezoidal blades and a blade holder, the six inverted trapezoidal blades are evenly distributed in a regular hexagon, and the tail end of each blade is connected with the holder; the The pliers-shaped force transmission assembly is provided with movable pliers; the pliers are connected with the inverted trapezoidal blades, and the tail ends are connected with the shell; each blade of the six inverted trapezoidal blades is in the shape of a "T", and the tip of the blade is in the shape of the pliers. The force transmission assembly is fixed; the inside of the cylindrical inner shell is provided with a cylindrical through hole for putting in pencils, passing pen shavings, and accommodating the cutting mechanism; the raised strips on the inner wall of the outer shell are elastic recovery structures, which are used to make the The shell returns to the initial state; the protruding structure at the tail end of the pincer force transmission assembly is inserted into the groove on the inner wall of the shell, and fixed with a fixed rod, which is used to drive the pincer force transmission assembly to move when the shell returns to the initial state; the surface of the shell The protruding structure is used to increase surface friction; the inner wall of the housing is provided with a groove for inserting the tail end of the pincer force transmission assembly and limiting its stroke, and is fixed with a fixing rod; the protruding structure on the lower side of the inner wall of the housing A first bar-shaped groove is provided for accommodating the compressed state of the elastic recovery structure. The vertical features of the six "T"-shaped blades are provided with blade positioning holes for fixing with the pincer force transmission assembly; the inner wall of the cylindrical inner shell is provided with vertical thin grooves for accommodating the six inverted trapezoidal blades in The part that protrudes from the inner wall when it is opened; the inner wall of the cylindrical inner shell is provided with an annular groove for passing through the pincer force transmission assembly; the upper side of the inner wall of the cylindrical inner shell is provided with a groove for inserting the blade holder and fixed; the outer surface of the cylindrical inner shell is provided with a circular groove for distinguishing the head end and the tail end of the pencil sharpener; the outer surface of the cylindrical inner shell is provided with a second bar-shaped groove for defining the outer shell The movement direction of the upper elastic recovery structure; the upper and lower sides of the outer surface of the cylindrical inner shell are provided with grooves, which are used to insert the raised structure on the inner wall of the outer shell, so as to limit the moving direction of the outer shell; the pincer force transmission assembly is composed of Slide block, limit rod, pliers, pliers housing, fixed rod and fixing nail; the fixing nail on the pliers force transmission assembly is used to fix the pliers to the pliers housing, and make the pliers take the fixing nail as the center of rotation Rotation; the limit rods on both sides of the pincer-shaped force transmission assembly are inserted into the thin grooves on both sides of the shell to drive the pliers to move when the shell moves; the slider is used to fix the inverted trapezoidal blade and limit the blade to only move forward and backward movement; the limit rod is used to fix the inverted trapezoidal blade, and realize the forward and backward movement of the blade; the clamp-shaped shell is used to wrap the slider and make it only move forward and backward; The slot is used to insert the limit rod on the pincer force transmission assembly; the pencil sharpener also includes a limiting mechanism of the cutting mechanism when performing cutting operations; Move; the slider of the pincer force transmission assembly drives the blade fixed on it to move forward; hold the shell and apply force, the pliers are pushed inward by the inner wall of the shell, and the pincers are fixed at the limit The four inverted trapezoidal blades on the rod are driven to converge toward the axis of the cutting assembly, inserting the blade part into the pencil and fixing the pencil; when the pencil sharpener is not in use, the blade is in the initial position, hold the housing, pliers and slider When the inner wall of the shell is pushed and closed, the blade is driven to close in the direction of the axis of the cutting mechanism, forming the hexagonal angle required for cutting the pencil point.

The advantages of the structure of the utility model are: ① this pencil sharpener can cut a single pencil into a hexagonal pencil point that can meet various drawing requirements, and improve the utilization rate of the pencil; ② due to the protection of the cover, the fingers will not be damaged The cutting mechanism is scratched; ③The pen scraps from the cutting leak directly through the through hole at the bottom of the cylindrical shell, and will not fly around, which is easy to clean.

Description of drawings

Fig. 1 is the expanded view of parts of the present utility model.

Fig. 2 is a schematic diagram of the shell assembly of the pencil sharpener.

Fig. 3 is a schematic diagram of the cylindrical shell assembly of the pencil sharpener.

Fig. 4 is a schematic structural diagram of the cutting mechanism of the pencil sharpener.

Fig. 5 is a schematic diagram of the pincer force transmission assembly of the pencil sharpener.

Fig. 6 is a schematic diagram of the combination of the outer shell and the cylindrical inner shell of the pencil sharpener.

Fig. 7 is a schematic diagram of the inverted trapezoidal blade of the pencil sharpener.

Fig. 8 is a schematic cross-sectional view of the pencil sharpener.

Fig. 9 is a schematic diagram of the overall appearance of the pencil sharpener.

Figure 10 is a schematic diagram of the process of cutting a pencil with six inverted trapezoidal blades.

Fig. 11 is a schematic diagram of the use of the hexagonal nib cut out.

Reference signs: shell 1; cylindrical inner shell 2; cutting mechanism 3; pincer force transmission assembly 4; shell part 101; shell part 102; shell part 103; shell part 104; groove 105; fine groove 106; elastic recovery structure 107; the jack 108 on the shell assembly; the plug 109 on the shell assembly; the protruding structure 110; the first strip groove 111; the structure 112; the cylindrical inner shell part 201; 203; the jack 204 on the cylindrical inner shell; the annular groove 205; the vertical thin groove 206; the groove 207; the groove 208; the second strip groove 209; the through hole 210; the circular groove 211; Blade positioning hole 302; blade fixing frame 303; blade round bar structure 304; fixing frame through hole 305; positioning nail 401; pliers 402; The movable rod 407 in the pincer-shaped force transmission assembly of the transmission assembly; the elongated hollow groove 408; the hexagonal pencil point 5; the cut sawdust 6; the closed state of the blade 7;

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail in conjunction with the accompanying drawings and embodiments. The following description is not intended to limit the scope of the utility model claimed, but only Selected embodiments of the present invention are represented. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

It should be noted that similar reference numerals denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientations or The positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Any device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be a fixed connection or an optional connection. Disconnected connection, or integral connection; it can be mechanical connection, direct connection, indirect connection through an intermediary, or internal communication between two components. The terms "first" and "second" are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

A pencil sharpener for cutting out a hexagonal pencil tip is provided, the specific implementation method:

The pencil sharpener provided by the utility model is characterized in that it includes an outer shell 1, a cylindrical inner shell 2, a cutting mechanism 3 for cutting pencils, and a pliers-type force transmission assembly 4. The outer shell 1 is connected and fixed by four parts 101 , 102 , 103 and 104 through the socket 108 and the plug 109 , and is covered outside the cylindrical inner shell 2 . The cylindrical inner shell 2 is connected and fixed by two parts 201 and 202 through the plug 203 and the socket 204, and is covered outside the cutting mechanism 3 and the pincer force transmission assembly 4 . The front end of the pincer force transmission assembly 4 is connected to the inverted trapezoidal blade 301 , and the tail end is connected to the shell 1 .

The protruding strip inside the shell 1 is an elastic recovery structure 107, which is used to provide kinetic energy to move to the outside after the shell 1 is loosened by external force. In the compressed state of the elastic recovery structure 107, there are thin grooves 106 on both sides of the outer shell 1 for inserting the limit rod 404 on the pincer force transmission assembly 4, and the internal convex structure 110 of the outer shell 1 is inserted into the outer groove 208 of the cylindrical inner shell 2 for use In the moving direction of the fixed shell 1 , the shell 1 is moved by an inward external force, which drives the pincer-shaped force transmission assembly 4 to move.

The interior of the cylindrical inner shell 2 is provided with vertical thin grooves 206 for accommodating the parts that protrude from the inner wall when the six inverted trapezoidal blades 301 are in the opened state, and an annular groove 205 is provided in the middle of the interior for the pincer force transmission assembly 4 and the outer shell. Connected with six inverted trapezoidal blades 301, a groove 207 is provided on the inner upper side for inserting and fixing the blade holder 303, and a circular groove 211 is provided on the outer upper side to distinguish the head end and tail end of the pencil sharpener , a second bar-shaped groove 209 is provided in the middle of the outside for fixing and sliding of the elastic recovery structure 107, and grooves 208 are provided up and down on the outside of the outer side for inserting the convex structure 110 inside the shell, and it is limited to only move forward and backward. , The pincer force transmission assembly 4 is composed of a positioning nail 401 , a movable pliers 402 , a fixed rod 403 , a limit rod 404 , a pincer shell 405 and a slider 406 . The positioning nail 401 is used to fix the pliers 402 so that it can rotate around the positioning nail 401. The limit rods 404 on both sides of the pincer-shaped force transmission structure 4 are inserted into the narrow grooves 106 on both sides of the shell 1 for the shell 1 to move outward. When moving in the same direction, the pliers 402 are driven to move at the same time. The movable rod 407 in the pliers force transmission assembly is inserted into the elongated hollow groove 408 to limit its stroke. The inner center of the shell is provided with a groove 105 for pliers. The tail end of the force transmission assembly 4 is inserted into and limits its stroke, and is fixed with the fixed rod 403. The pincer shell 405 is used to wrap and fix the slide block 406, which can only move forward and backward. The protruding structure on the pincer shell 405 is used In order to limit the stroke of the slider, the slider 406 fixes the inverted trapezoidal blade 301 parallel to the surface of the pliers shell, and is used to push the blade to move forward and backward. The blade moves forward and backward on the line.

Compared with the existing pencil sharpener, the cutting mechanism 3 of the pencil sharpener provided by this embodiment is arranged in the cylindrical inner shell 2, and the cutting mechanism 3 includes six inverted trapezoidal blades 301 and a blade holder 303, the six pieces The inverted trapezoidal blades 301 are evenly distributed in the shape of a regular hexagon, and each blade fixing frame 303 has a fixing frame through hole 305, and each inverted trapezoidal blade 301 has a blade round rod structure 304 at the tail end, so that the blades are inserted into the blade fixing frame 303 and connected , and can rotate with the base axis as the center of rotation, and each blade tip has a blade positioning hole 302 for fixing with the pincer force transmission assembly 4 . Each blade of the six inverted trapezoidal blades 301 is in the shape of a "T", which can effectively cut the part of the pencil that needs to be removed quickly, saving more labor, and the pen scraps after cutting will not fly around, and will leak out directly through the through hole 210. It is easy to clean and does not affect the beauty of the environment.

In order to make the pencil sharpener suitable for cutting pencils of different shapes, preferably, the cutting mechanism 3 in this embodiment can open and close. When the pencil sharpener is not in use, it is in the blade unfolded state 8, and a pencil Put it into the through hole 210, lightly hold the shell 1 with your hands, the pliers 402 of the pincer force transmission assembly 4 are pushed inward slightly by the inner wall of the shell 1, and the four inverted trapezoidal blades 301 fixed on the pliers 402 are driven slightly towards the cutting assembly. At the same time, the blade connected to the slider 406 and the blade connected to the pliers 402 are slightly closed toward the axis of the cutting mechanism 3, and the tip of the inverted trapezoidal blade 301 is embedded in the pencil and fixed.

Hold the housing 1 tightly, the slider 406 is pressed by the inner wall of the housing 1 and moves inward, the pliers 402 and the slider 406 are squeezed inward by the inner wall of the housing 1, and the blade connected to the slider 406 and the blade connected to the pliers 402 The blade is closed to the axial direction of the cutting mechanism 3 simultaneously. At this time, the unfolded six inverted trapezoidal blades 301 become closed state 7, forming the required hexagonal angle for the pencil point. Pull the pencil and the pencil sharpener in the opposite direction to cut the pencil. Repeat this process to cut the pencil into a hexagonal pencil tip 5 and produce wood chips 6. This way of cutting a pencil requires less effort than spinning it.

When a draftsman draws a picture, he needs to draw lines of different thicknesses, such as 1mm, 2mm, and lines above 4mm for large-area flat coating. By controlling different angles of holding the pen, different surfaces of the hexagonal pencil tip 5 can be brought into contact with the drawing. The plane can achieve the above purpose.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. A pencil sharpener that cuts out a hexagonal pencil point is characterized in that it comprises a shell, a cylindrical inner shell, a cutting mechanism, and a pincer force transmission assembly; the shell is made up of four parts, and the plug and the The jack connection is fixed and covered outside the cylindrical inner shell; The cylindrical inner shell is composed of two parts, which are connected and fixed through the plugs and sockets on the cylindrical inner shell parts, and are covered outside the cutting mechanism and the pincer force transmission assembly; The cutting mechanism includes six inverted trapezoidal blades and a blade fixing frame, the six inverted trapezoidal blades are evenly distributed in a regular hexagon, and the tail end of each blade is connected with the fixing frame; The pincer-shaped force transmission assembly is provided with movable pincers; the pincers are connected with inverted trapezoidal blades, and the tail ends are connected with the shell. 2. The pencil sharpener according to claim 1, wherein each blade of the six inverted trapezoidal blades is in the shape of a "T", the tip of the blade is fixed to the pincer-shaped force transmission assembly, and the cylindrical inner shell Inside is a cylindrical through hole for putting pencils, passing pen shavings, and accommodating cutting mechanisms; The protruding strip on the inner wall of the housing is an elastic recovery structure, which is used to return the housing to the initial state after the external force is removed; the protruding structure at the tail end of the pincer force transmission assembly is inserted into the groove on the inner wall of the housing, and fixed with a fixed rod, When the shell returns to the initial state, the pincer force transmission assembly is driven to move. 3. The pencil sharpener according to claim 2, wherein the convex structure on the surface of the housing is used to increase surface friction; The inner wall of the housing is provided with a groove, which is used for inserting the tail end of the pincer force transmission assembly and limiting its stroke, and is fixed with a fixing rod; The protruding structure on the lower side of the inner wall of the housing is provided with a first bar-shaped groove for accommodating the compressed state of the elastic recovery structure. 4. The pencil sharpener according to claim 2, characterized in that, the vertical features of the six "T"-shaped blades are provided with blade positioning holes for fixing with the pincer force transmission assembly. 5. The pencil sharpener according to claim 2, wherein the inner wall of the cylindrical inner shell is provided with a vertical thin groove for accommodating the parts protruding from the inner wall when the six inverted trapezoidal blades are in an open state; The inner wall of the cylindrical inner shell is provided with an annular groove, which is used to transmit the assembly through the pincer force; The upper side of the inner wall of the cylindrical inner shell is provided with a groove for inserting and fixing the blade holder; A circular groove is provided on the outer surface of the cylindrical inner shell to distinguish the head end and the tail end of the pencil sharpener; The outer surface of the cylindrical inner shell is provided with a second bar-shaped groove for limiting the movement direction of the elastic recovery structure on the outer shell; Grooves are provided on the upper and lower sides of the outer surface of the cylindrical inner shell for inserting the protruding structures on the inner wall of the outer shell, so as to limit the movement direction of the outer shell. 6. The pencil sharpener according to claim 2, wherein the pincer force transmission assembly is composed of a slider, a limit rod, a pliers, a pincer shell, a fixed rod and a fixed nail; The fixing nail on the pliers force transmission assembly is used to fix the pliers to the pliers shell, and make the pliers rotate with the fixing nail as the rotation center; The limit rods on both sides of the pincer-shaped force transmission assembly are inserted into the thin grooves on both sides of the shell, and are used to drive the pliers to move when the shell moves; The slider is used to fix the inverted trapezoidal blade and limit the blade to move forward and backward; The limit rod is used to fix the inverted trapezoidal blade, and realize the forward and backward movement of the blade; The pincer shell is used to wrap the slider and make it only move forward and backward; There are thin grooves on both sides of the shell for inserting the limit rod on the pincer force transmission assembly. 7. A pencil sharpener according to any one of claims 2 to 6, characterized in that, the pencil sharpener further comprises a limiting mechanism of the cutting mechanism when performing cutting operations. 8. The pencil sharpener according to claim 7, wherein the housing is moved inward by the grip force of the human hand, driving the pincer force transmission assembly to move; The slider of the pincer force transmission assembly drives the blade fixed thereon to move forward; Hold the shell and apply force, the pliers are pushed by the inner wall of the shell, close inward, the four inverted trapezoidal blades fixed on the limit rod are driven, converge toward the axis of the cutting assembly, and insert the blade part into the pencil and fix the pencil; When the pencil sharpener is not in use, the blade is in the initial position, and the shell is held tightly. The pliers and the slider are pushed inward by the inner wall of the shell, and the blade is driven to close in the axial direction of the cutting mechanism, forming the hexagonal clip required for cutting the pencil point. horn.