130results about "Sharpeners" patented technology

The utility model discloses a pencil feeding mechanism of a pencil sharpener and the pencil sharpener, and belongs to the technical field of pencil sharpeners, the pencil feeding mechanism comprises a first pencil clamping assembly, a second pencil clamping assembly, a vortex plate and a mounting plate, the mounting plate is erected above the vortex plate, and the first pencil clamping assembly and the second pencil clamping assembly are connected with the mounting plate; the installation disc rotates to drive the first pen clamping assembly and the second pen clamping assembly to get close to each other for clamping or get away from each other for expansion, the installation disc is in contact connection with the vortex disc, and the vortex disc rotates to drive the installation disc to rotate to drive the first pen clamping assembly and the second pen clamping assembly to expand by a preset distance. The first pencil clamping assembly and the second pencil clamping assembly are arranged to have an initial expansion state, so that pencil feeding is labor-saving.

The utility model discloses a full-automatic pencil sharpener capable of changing the shape of a pencil point, which can automatically feed and sharpen a pencil, and is convenient for a user to customize the shape, length and thickness of the pencil point according to different drawing requirements. The full-automatic pencil sharpener comprises a shell, and a rotary pencil feeding mechanism is arranged in the shell. The inner side of the shell is symmetrically connected with the fixed brackets; the inner sides of the fixed brackets are connected with the reversing mechanisms in a sliding manner; the knife rest assembly is connected between one sides of the reversing mechanisms; the power devices are connected between the knife rest assemblies and the fixed support; and the operation interface is arranged at the upper part of the shell. The full-automatic pencil sharpener has the function of changing the shape of the pencil point in a personalized mode, is easy and convenient to operate, high in safety and particularly suitable for being used by children and beginners.

The utility model discloses a three-wheel pencil feeding mechanism of a pencil sharpener. The three-wheel pencil feeding mechanism comprises a base plate, a shell with a pencil inserting hole, shifting teeth, three worms and a three-wheel pencil feeding device. The chassis and the shell are connected to form a cavity; the shifting tooth can be assembled in the middle of the chassis and comprises a middle through hole connected with the tool rest and peripheral teeth; the three worms are distributed on the periphery of the peripheral teeth, and a worm gear is arranged at the lower end of each worm; each worm gear is meshed with peripheral teeth of the shifting teeth at the same time; the three-wheel pen feeding device comprises three pen clamping assemblies, each pen clamping assembly comprises a transmission shaft, one end of each transmission shaft is provided with helical teeth matched with the worm, and the other end of each transmission shaft is provided with a pen clamping wheel; a pencil passing space is defined by the three pencil clamping wheels, the caliber of the pencil passing space is smaller than that of the middle through hole, and automatic or semi-automatic stable feeding of pencils in the pencil sharpener is achieved through a transmission mechanism that the three-wheel pencil feeding device is meshed with the worm gear.

The invention relates to the technical field of office appliances, and discloses a portable retractable electric pencil sharpener which comprises a pencil sharpener body shell, a sawdust box storage box, a pencil sharpener body, a spring shifting piece, a push-pull plate, an adjustable lifting and pressing plate, a gear motor, a lithium battery charging panel and a button switch. The wood chip storage box and the pencil sharpener body shell are connected in an embedded mode and are telescopically positioned and fixed through the spring scribing piece, the pencil sharpener is fixedly connected with the front end of the gear motor, the suspension position of the pencil sharpener is fixed through a middle vertical plate of the pencil sharpener body shell, and suspension of the pencil sharpener is achieved. And the gear motor is fixedly connected with a middle suspension plate of a shell of the pencil sharpener body. The portable retractable electric pencil sharpener has practicability, portability and safety, the problems that the electric pencil sharpener is too large and not easy to carry and an original pencil sharpener consumes manpower in office work and study can be solved, the office efficiency is improved, and the problem that students cannot carry the pencil sharpener is solved.

The electric pencil sharpener comprises a knife rest and a driving motor, and a pencil feeding and discharging mechanism is arranged at a pencil sharpening inlet of the knife rest; the pen feeding and discharging mechanism comprises a vortex plate matched with the tool rest and rotating along with the tool rest, and further comprises a first rotating shaft and a second rotating shaft matched with the vortex plate. The vortex plate rotates forwards to drive the vortex plate to internally screw in the pen, and rotates reversely to drive the vortex plate to externally screw out the pen; the control assembly is used for controlling the rotating direction of the driving motor; the reverse triggering assembly is used for triggering the control assembly to enable the driving motor to rotate reversely; the reverse triggering assembly is arranged at the pencil sharpening outlet and located on a moving path where the pencil lead is exposed out of the knife rest; when a pencil lead is exposed out of the knife rest and reaches a certain position, the reverse triggering assembly is triggered, the control assembly controls the driving motor to rotate reversely, and the pencil withdrawing action is achieved in cooperation with the pencil feeding and discharging mechanism. The accuracy of the pencil withdrawing time is guaranteed, the problems caused by too early or too late pencil withdrawing are avoided, and the use convenience and the pencil sharpening effect are improved.

The present disclosure relates to a pen holder (2) for storing a pen (36) or marker, in particular a deep-hole marker, comprising a base body (4), preferably sleeve-shaped, which extends in a longitudinal direction (L) and defines a receiving space (12) for at least partially receiving the pen (36) and has a base body wall (62). The base body (4) has an insertion opening (10) in the base body wall (62) at a first end (38) in the longitudinal direction (L) for inserting the pen (36) into the receiving space (12), wherein at least a first coupling element (32) is formed in or on an end section (38) of the base body (4) facing the insertion opening (10) to reversibly fix the pen (36) in the receiving space (12), wherein the first coupling element (32) includes or is a magnetic element or a magnet.The present disclosure further relates to a pen (36) and a system (60) consisting of the pen holder (2) and the pen (36).

The utility model belongs to the technical field of pencil sharpeners, and particularly relates to an electric pencil sharpener which comprises a shell, a clamping and fixing device, a pencil advancing and retreating device, a pencil sharpening device and a driving device. The clamping and fixing device comprises a first clamping and fixing mechanism, a second clamping and fixing mechanism, a second clamping and fixing mechanism and a third clamping and fixing mechanism, and the first clamping and fixing mechanism is installed in the shell and provided with a first clamping position used for clamping a pencil; the second clamping and fixing mechanism is installed below the first clamping and fixing mechanism, and the second clamping and fixing mechanism is provided with a second clamping position and used for clamping a pencil; the first clamping mechanism and the second clamping mechanism are used for clamping and fixing the pencil, so that the pencil is ensured to be stably clamped, the pencil is prevented from inclining due to lack of clamping after being sharpened, and the pencil is prevented from directly falling off from the pencil sharpener; meanwhile, the clamping and fixing device can straighten the position of the pencil, it is guaranteed that the pencil does not incline when the pencil feeding and retracting device conveys the pencil into the pencil sharpening device, and the pencil sharpening quality is guaranteed.

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.

The utility model relates to the technical field of pencil cutting tools, in particular to a pencil sharpener which is convenient to cut out a pencil connecting structure matched with an extender so as to improve the use convenience and the use comfort, and comprises a pencil sharpener frame, a first blade, a second blade, a first locking screw and a second locking screw, the pencil sharpener frame is provided with a conical hole, the end, with the largest aperture of the conical hole, of the pencil sharpener frame is defined as an insertion end, the pencil sharpener frame is provided with a cutting opening and a chip removal opening which are communicated with the conical hole, and the first blade and the second blade are arranged at the cutting opening. The first blade and the second blade are arranged in the taper hole and are locked on the pencil sharpener frame through a first locking screw and a second locking screw respectively, and the first blade and the second blade are sequentially distributed in the axial direction of the taper hole and are arranged in an inclined mode.

The application discloses a hand-operated pencil sharpener, which comprises a cutter holder assembly and a rocker arm assembly, and a gear reduction mechanism is arranged between the cutter holder assembly and the rocker arm assembly. The rocker arm assembly drives the cutter holder assembly to rotate through the gear reduction mechanism. The gear reduction mechanism comprises an input gear, a speed change gear and an output gear which are sequentially connected. The input gear is connected with the rocker arm assembly, and the output gear is connected with the cutter holder assembly. When the rocker arm assembly is forced to drive the input gear to rotate, the input gear acts on the output gear through the speed change gear, so that the output gear drives the cutter holder assembly to rotate at a reduced speed. The gear reduction mechanism composed of the input gear, the speed change gear and the output gear is additionally arranged, the torque is increased, and the cutter holder assembly rotates more stably and labor-savingly.

The application discloses a control device of a full-automatic electric pencil sharpener, which can control a pencil feeding driver in addition to a pencil sharpening driver, so that the pencil feeding and the pencil sharpening are controlled separately. A pencil tip adjusting switch is arranged in a hobbing assembly and is electrically connected with the control device. In use, when the pencil is cut and before the pencil is polished, the pencil tip of the hobbing assembly can trigger the pencil tip adjusting switch assembly to send a signal to the control device, and the control device controls the pencil feeding mechanism to stop feeding the pencil. Therefore, the phenomenon of broken core during the polishing of the pencil can be effectively avoided, and the pencil sharpening effect of the electric pencil sharpener is improved.

Pen holder (2) for storing a pen (36) or marker, in particular a deep-hole marker, with a base body (4), preferably shaped like a sleeve, which extends in a longitudinal direction (L) and defines a receiving space (12) for at least partially receiving the pin (36) and has a base body wall (62), wherein the base body wall (62) has a fastening clip (16) which is formed integrally with the base body wall (62), wherein the base body (4) has an insertion opening (10) in the base body wall (62) at a first end (38) of the longitudinal direction (L) for inserting the pin (36) into the receiving space (12), wherein at least a first coupling element (32) is formed in or on an end section (38) of the base body (4) facing the insertion opening (10) to reversibly fix the pin (36) in the receiving space (12), characterized in that the first coupling element (32) includes or is a magnetic element or a magnet, wherein the first coupling element (32) is formed in or on an inner surface of the base body (4) and the first coupling element (32) is designed as an annular coupling element,wherein the first coupling element (32) radially encloses or surrounds the receiving space (12) section by section and wherein the first coupling element (32) is fixedly or releasably fixed to the base body (4) via a first fixing element (34) and the first fixing element (34) includes or is the insertion opening (10) of the base body (4).

The utility model relates to the technical field of pencil processing, in particular to a sharpening machine convenient for taper adjustment and used for pre-sharpening pencil processing, which comprises a base, a machine body is fixedly mounted at the top end of the base, a movable groove is formed in the middle of the front side of the machine body, and a rotary sleeve is arranged below the movable groove; a rotating mechanism is arranged between the rotating sleeve and the bottom end of the machine body; a limiting groove is formed in the upper end of the left side of the machine body, and a pressing mechanism is arranged on the right side of the top end of the machine body. A side frame is fixedly installed on the outer side of the front face of the rotating sleeve, and a sharpening mechanism is arranged in the side frame. The sharpening mechanism is arranged, the threaded rod is driven by the rotary knob to rotate, then the movable sleeve and the adjusting block are controlled to move, the inclination angle of the tool bit can be conveniently and rapidly adjusted, the taper can be flexibly adjusted, the diversified requirements of different users for the taper of a pencil point are met, operation is easy, and operation can be completed without professionals.

A crayon cutter having a housing and a cutter positioned in the housing. The housing defines a first opening configured to receive a crayon and a second opening. The cutter is configured for actuation to cut a portion of the crayon off of the remainder of the crayon. The cutter is positioned in the housing so that the portion of the crayon passes through the second opening after it is cut off of the remainder of the crayon.

The utility model discloses an intelligent pencil sharpener which comprises a fixing piece and a pencil feeding mechanism installed on the fixing piece, the pencil feeding mechanism comprises a supporting piece, a pencil feeding mechanism and a pencil feeding mechanism, and a central axis is defined by the supporting piece; the pen clamping assemblies are rotatably erected on the supporting piece, the pen clamping assemblies are arranged in the circumferential direction of the central axis so as to define pen clamping gaps between the pen clamping assemblies, and the pen clamping assemblies are suitable for moving in the radial direction relative to the supporting piece so that the sizes of the pen clamping gaps can be adjusted; the adjusting piece is connected to the pencil clamping assemblies and can provide acting force for driving the pencil clamping assemblies to move in the radial direction towards the central axis so that the pencil can be clamped by the pencil clamping assemblies. The pencil clamping assembly is suitable for radially moving relative to the supporting piece, so that the size of the pencil clamping gap is adjusted, and the pencil feeding mechanism is suitable for clamping pencils with different diameters; the adjusting piece can provide acting force for driving all the pencil clamping assemblies to move in the radial direction towards the central axis so as to clamp the pencils, and pencil feeding or pencil withdrawing is achieved.

The utility model discloses an electric pencil sharpening device which comprises a switch, a motor and a knife body. The electric pencil sharpening device comprises a knife body, a switch, a motor, a cover body, a contact piece and a transmission piece, the cover body comprises a rail piece, the rail piece is used for forming a guide rail, and the contact piece is arranged in the guide rail; when a pencil is inserted into the electric pencil sharpening device, the pencil makes contact with the contact piece and enables the contact piece to move in the guide rail, and the transmission piece switches the on-off state of the switch. The cost of the electric pencil sharpener can be reduced.

The utility model relates to a pencil feeding mechanism for a pencil sharpener. The pencil feeding mechanism comprises a front cover, a pencil rubbing wheel, a pencil clamping disc, a wheel shifting disc and a rear cover. Wherein the front cover is provided with a rib-plate-shaped first supporting part, the pen clamping disc is provided with a cylindrical barrel-shaped main body, a rib-plate-shaped second supporting part is arranged in the barrel-shaped main body, a groove for roughly receiving the end part of each pen rubbing wheel is formed in the second supporting part, and the first supporting part and the second supporting part are matched with each other to clamp the pen rubbing wheels together. And a pencil feeding gear positioned on the pencil rubbing wheel is meshed with a poking wheel disc positioned between the pencil clamping disc and the rear cover. The front cover, the pen clamping disc and the rear cover are connected through a plurality of connecting parts located on the front cover, the pen clamping disc and the rear cover respectively. A pencil enters the pencil sharpener through the first pencil inlet hole of the front cover, the second pencil inlet hole defined by the pencil rubbing wheel, the center hole of the dial wheel disc and the third pencil inlet hole of the rear cover so as to carry out the subsequent pencil sharpening step. The pencil sharpener comprising the pencil feeding mechanism is simple in structure, small in size and more convenient to carry.

This application discloses a pen feed mechanism and a pen sharpener having the same. The pen feed mechanism includes a drive device and a pen clamp device, the drive device is connected to the pen clamp device and can operate and drive the pen clamp device, the pen clamp device includes a holder, the holder is provided with three pen clamp roller assemblies, a triangular pen clamp area into which a pencil can be inserted is formed between the three pen clamp roller assemblies, one end of the pen clamp roller assembly is rotatably connected to the holder, the other end of the pen clamp roller assembly is slidingly connected to the holder, and a clamp assembly is provided between the movable end of the pen clamp roller assembly and the holder, the clamp assembly includes a clamp member movably connected to the holder and abutting the movable end of the pen clamp roller assembly, and a restoring elastic member supported between the clamp member and the holder. The pen feed mechanism and the pen sharpener having the same are suitable for pens of different shapes and diameters, making the pen feed mechanism highly versatile.

The utility model discloses an electric pencil sharpening device which comprises a contact piece and a transmission piece. The transmission piece comprises an elastic structure and is in transmission connection with the contact piece; when a pencil is inserted into the electric pencil sharpening device, the pencil makes contact with the contact piece and enables the contact piece to generate displacement away from the pencil, the elastic structure generates deformation stress, and the on-off state of the switch can be switched through the deformation stress. After the pencil is pulled out of the electric pencil sharpening device, the elastic structure generates recovery stress, the recovery stress enables the transmission piece to recover the initial position before the pencil is inserted into the electric pencil sharpening device, and the switch recovers the on-off state before the pencil is inserted into the electric pencil sharpening device. The elastic structure is arranged on the transmission part, the switch can be pressed down after the pencil is inserted into the electric pencil sharpening device, the motor is started by switching the state of the switch, and the elastic structure is reset after the pencil is pulled out of the electric pencil sharpening device.

The scrap compressing mechanism of the pencil sharpener comprises a conveying piece arranged in a scrap box and located below a cutting position, a scrap compressing piece arranged in the scrap box and a scrap compressing piece arranged in the scrap box, the power source is connected with the conveying part and drives the conveying part to rotate; and the conveying piece conveys the scraps falling on the conveying piece to the far end in the scrap box through autorotation. According to the sweeps compressing mechanism of the pencil sharpener, the sweeps are effectively conveyed to the far end of the sweeps box through autorotation of the conveying piece, the sweeps are compacted, space utilization of the sweeps box is optimized, accumulation of the sweeps is reduced, cleaning difficulty is lowered, and cleanliness and stability of the pencil sharpener are improved.

The utility model provides a double-hole electric pencil sharpener, which relates to the field of stationery and comprises a double-hole electric pencil sharpener body. The holding structure is arranged on one side of the double-hole electric pencil sharpener body and used for being held by hand, the holding structure is composed of an upper handle piece and a lower handle piece, and the upper handle piece and the lower handle piece are connected through an adjusting structure; and the anti-skid sleeve wraps the outer part of the holding structure and is used for preventing skid. According to the electric pencil sharpener, through the adjustable holding structure, the anti-skid sleeve and the stable overall structure, the problems that an existing electric pencil sharpener is unstable in holding, prone to slipping and the like due to vibration are effectively solved, and easier, more comfortable and more convenient use experience is brought to a user. The length of the upper handle piece and the length of the lower handle piece of the holding structure can be adjusted through the adjusting rotating rod, and the holding structure can adapt to different user hand shapes and use scenes.

A pencil sharpening device capable of adjusting the thickness of a pencil point comprises a shell, a cutting mechanism, a driving mechanism and an adjusting column, and the adjusting column is connected with the cutting mechanism and arranged in the in-out direction of a cutting channel in a sliding mode. The adjusting piece is rotationally connected with the shell or the driving mechanism and is provided with an adjusting part; the adjusting part is propped against the adjusting column; the height of the adjusting part is gradually increased in the direction of the adjusting column, the adjusting part is rotated to enable different positions of the adjusting part to abut against the adjusting column, and therefore the depth position, connected into the cutting channel, of the adjusting column is adjusted. According to the pencil sharpening device capable of adjusting the thickness of the pencil point, the adjusting column capable of sliding is arranged in the sharpening channel and matched with the adjusting part gradually rising on the adjusting piece, different positions of the adjusting part can abut against the adjusting column, and therefore the thickness of the pencil point of a sharpened pencil is adjusted.

The invention relates to a sharpening device (10) to sharpen pencils comprising - a frame (12) forming an interior space and providing a receiving section (16) therein, - a sharpening unit (14) that is attached to a wall of the frame (12) in such a way that a cutting edge of the sharpening unit (14) is directed towards the receiving section (16), - a cone-shaped insert body (18) that is arranged within the receiving section (16), wherein the cone-shaped insert body (18) provides a receiving space (20) to receive a front section of a pencil (100) through an insertion opening (22) provided at a rear end of the cone-shaped insert body (18), and wherein the cone-shaped insert body (18) is movable within the receiving section (16) between a non-use position and a use position along a longitudinal axis (L)of the sharpening device, - safety means (24, 30) to releasably lock the cone-shaped insert body (18) within the receiving section (16) in the non-use position, wherein the cone-shaped insert body (18) is fixed against movement along the longitudinal axis (L) in the receiving section (16) and the receiving space (20) of the cone-shaped insert body (18) is located at a distance (T1) to the sharpening unit (14).

The utility model provides a full-automatic electric pencil sharpener. The full-automatic electric pencil sharpener comprises a shell, a cutting assembly and a driving assembly. A cutting cavity and a driving cavity which are distributed front and back are formed in the shell, the cutting assembly is arranged in the cutting cavity and rotationally connected with the shell, the driving assembly is located in the driving cavity and connected with the shell, and the cutting assembly is in transmission connection with the driving assembly; the full-automatic electric pencil sharpener further comprises a sliding block, an ejector rod and a switch. The sliding block is connected to the cutting assembly in a sliding mode, the ejector rod is coaxially and axially movably arranged in the output end of the driving assembly in a penetrating mode, the switch is fixed to the position, located on the rear side of the ejector rod, of the shell, the front end of the ejector rod abuts against the sliding block, and the rear end of the ejector rod abuts against the triggering end of the switch; the driving assembly and the switch are electrically connected with a control circuit board located in the shell. The device has the advantages of being high in automation degree and convenient to use.

The utility model discloses a pencil feeding box of a pencil sharpener, and belongs to the technical field of pencil feeding of the pencil sharpener, the pencil feeding box comprises a synchronizing part, a pencil feeding driving assembly and a pencil feeding guide assembly, the two ends of the pencil feeding driving assembly are installed on the synchronizing part, the normal state of the pencil feeding driving assembly is a folded state, and the pencil feeding driving assembly expands outwards under the thrust of pencil insertion; the pen feeding driving assembly expands outwards to drive the synchronous part to move, and the pen feeding guiding assembly is erected on the synchronous part and acts on the synchronous part to limit the synchronous part to be located at the position where the pen feeding driving assembly is in the folded state. The structure of the pencil feeding box is further optimized, when small-diameter pencils are inserted, the pencil feeding driving assembly can provide large clamping force, and it is guaranteed that the pencils are fed and retreated stably and reliably.

The tool rest assembly convenient to install comprises a cover part, a supporting part and a tool part, and the distance from the top end of the lower wall of a cover part body to the top end of a blocking strip of the lower wall of the cover part body is H1; the length from the top ends of the first boss and the second boss to the top end of the support frame is H2; the first boss and the second boss are in paired connection with the first sliding groove and the second sliding groove to generate a deformation angle A; by increasing the lengths of H1 and H2, a consumer only needs to push the top of the supporting part into the matching cavity firstly and then carry out rotary matching in the process of installing the supporting part into the cover part, and the difficulty of replacing or cleaning the knife rest assembly by the consumer can be effectively reduced; the size of the first boss and the second boss participating in elastic deformation during rotation and buckle matching is longer, the deformation angle A is reduced, and a consumer can install the supporting part and the cover part with small screwing force.

An electric pencil sharpener with a protection mechanism comprises a pencil sharpening execution assembly, a signal circuit, a foreign body sensing assembly and a signal processing assembly, when a pencil is inserted into a pencil inlet (7), the foreign body sensing assembly generates a normal signal and sends the normal signal to the signal processing assembly through the signal circuit, and the signal processing assembly drives the pencil sharpening execution assembly to operate; when a foreign matter is inserted into the pencil inlet, the foreign matter sensing assembly generates an abnormal signal and sends the abnormal signal to the signal processing assembly through the signal line, and the signal processing assembly stops the pencil sharpening execution assembly from running. The electric pencil sharpener is simple in principle and structure, automatic identification is achieved after fingers or metal hard objects enter the pencil entering area, starting of the pencil sharpener is forbidden, and the safety problem of an existing electric pencil sharpener is solved.

The utility model provides an automatic pencil sharpener which belongs to the technical field of pencil sharpeners and comprises a shell, a pencil sharpening assembly, a driving transmission assembly and a microswitch, the pencil sharpening assembly comprises a supporting frame, a pencil holder, a hob and a driving element, and the driving transmission assembly comprises a stop block, a first transmission rod, a second transmission rod, a transmission ring and a transmission frame. When a pencil is inserted into the pencil holder, the pencil holder pushes the supporting frame to move in the containing cavity, so that the transmission ring is pushed, the push rod pushes the transmission frame to be away from the microswitch along with movement of the transmission ring, at the moment, the second contact is separated from the microswitch, and then the driving element is started to drive the pencil holder and the hobbing cutter to rotate to sharpen the pencil; the pen point makes contact with the stopping block so as to push the stopping block to move, the stopping block pushes the second transmission rod, when the second transmission rod makes contact with the first contact and pushes the first transmission rod to rotate, the second contact makes contact with the microswitch again, and therefore rotation of the driving element is stopped.

A writing instrument comprising: an elongate hollow housing extending between a first end and a second end, the housing comprising an ergonomic triangular barrel located between first and second end portions, the first and second end portions comprising said first and second ends; wherein the first or second end portions comprise a conical or frustoconical cross-section with inwardly located engagement formations configured for, in a first operable configuration, engaging with a writing cartridge including a ballpoint pen tube container having a writing tip in a first operable configuration, and, in a second operable configuration, engaging with a chuck that chucks a writing lead for a mechanical pencil.

The vertical pencil sharpener comprises a pencil sharpener body, a containing groove is formed in the front face of the pencil sharpener body, a shaking assembly is arranged on the front face of the containing groove, a folding assembly is arranged in the containing groove, and the folding assembly comprises a rotating shaft rotationally connected to the top of the interior of the containing groove; one end of the rotating shaft is fixedly connected with a cutting piece in the pencil sharpener body; the moving sleeve is inserted and connected to the outer side of the other end of the rotating shaft, and the moving sleeve is fixedly connected with the shaking assembly; the two fixing blocks are fixedly arranged on the two sides of the other end of the rotating shaft correspondingly, the two fixing blocks are connected with the moving sleeve in a penetrating and inserting mode, the rocking handle can stretch into the containing groove through movement of the moving sleeve on the rotating shaft, and the protruding rocking handle is placed into the containing groove and the protruding rocking handle is placed into the collecting groove in cooperation with rotation of the rocking handle in the collecting groove; therefore, all the protrusions are contained in the pencil sharpener body, the protrusions cannot hurt a carrier, and the pencil sharpener is convenient to carry about.