CN212148178U

CN212148178U - Pencil sharpener

Info

Publication number: CN212148178U
Application number: CN202020587506.8U
Authority: CN
Inventors: 高建永
Original assignee: Ningbo Yunfeng Stationery Co ltd
Current assignee: Ningbo Yunfeng Stationery Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-15
Anticipated expiration: 2030-04-17

Abstract

The utility model provides a cut a ware includes the casing and is used for adjusting the adjustment mechanism of refill thickness, adjustment mechanism includes the hob head, the regulating block, and touch rod subassembly, touch rod subassembly includes the touch rod, the upper end of touch rod is inserted and is established on the hob head and can reciprocate in the opening of hob head, touch rod subassembly and the not co-altitude fender position of regulating block cooperate, correspondingly, make touch rod be close to or keep away from and cut a hole, one in regulating block and the casing is provided with the stopper, another of regulating block and casing be provided with stopper sliding fit's spacing groove. When external force acts on the regulating block, the limiting block can slide in the limiting groove, so that the regulating block can slide more stably and feel better through the guide of the limiting groove.

Description

Pencil sharpener

Technical Field

The utility model belongs to the stationery field especially relates to a cut a ware.

Background

The pencil sharpener is used for sharpening a pencil.

For example, the present applicant's Chinese utility model patent application No. CN201920581156.1 (publication No. CN209888499U) ' a pencil sharpener with adjustable thickness of pencil lead ', this cut a ware includes casing and adjustment mechanism, adjustment mechanism includes the hobbing cutter, hob head and touch bar, the pore wall of cutting a hole and being close to the hobbing cutter has the mouth of cutting a pen, hob head still has the opening, touch bar's upper end is inserted and is established on hob head and can remove in hob head's opening, adjustment mechanism still includes the supporting seat, regulating block and brace table, touch bar's lower extreme supports the middle part at the supporting seat, the right-hand member and the brace table of supporting seat rotate to be connected, the bottom of left end is equipped with the location lug, be equipped with butt portion on the regulating block, butt portion has two at least fender position that are located different height position, the location lug with correspond fender position cooperation, the bottom lateral wall of casing has the slide opening that circumference set up, stretch out outside the casing after the slide opening is. The upper end of the touch rod is close to or far away from the pen sharpening hole, so that pen cores with different thicknesses can be sharpened; the regulating block receives the direction of casing, supporting seat and brace table, is difficult to the beat between location lug and the butt portion, keeps off the position and adjusts stably.

However, in the above patent, the adjusting block slides left and right without support because of the middle position of the inner bottom of the adjusting block, so the sliding is not smooth enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a ware is cut that regulating block can steadily slide is provided to above-mentioned prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a pencil sharpener, include the casing and install the adjustment mechanism who is used for adjusting the refill thickness on the casing, adjustment mechanism includes the hob frame, the regulating block, and the touch bar subassembly, the hob frame is used for installing the hobbing cutter, the hob frame has the under shed that cuts a hole and a hole is cut in the intercommunication, the regulating block has the fender position that is located not co-altitude and can move about relative casing, the touch bar subassembly is used for keeping off position mating reaction with the regulating block, the touch bar subassembly includes the touch bar, the upper end of touch bar is inserted and is established on the hob frame and can reciprocate in the opening of hob frame, when the touch bar subassembly cooperates with the fender position of regulating block co-altitude not, correspondingly, make the touch bar be close to or keep away from and cut a hole, its characterized in:

one of the regulating block and the casing is provided with a limiting block, and the other of the regulating block and the casing is provided with a limiting groove in sliding fit with the limiting block.

Preferably, the stopper sets up on the interior diapire of casing and has a certain distance with the inside wall of casing, the spacing groove is located the position that the bottom of regulating block corresponds. The limiting block can also be arranged at the bottom of the adjusting block, and the limiting groove is arranged at the corresponding position of the inner bottom wall of the shell.

In order to enable the adjusting block to slide stably, the adjusting block is provided with a transversely extending extension arm, the extension arm is provided with a limiting end portion capable of abutting against the outer wall of the limiting block, the limiting end portion slides along the outer wall of the adjusting block in the state that external force acts on the adjusting block, and meanwhile the touch rod assembly is changed from being matched with a gear of one adjusting block to being matched with another gear.

By arranging the limiting end part, the limiting end part can be in close contact with the outer wall of the limiting block, when the adjusting block is moved, the limiting end part slides along the outer wall of the adjusting block, and the adjusting block slides more stably; in addition, through setting up spacing tip, the frictional force between regulating block and the stopper is great, and during the installation, the regulating block is difficult to drop.

Preferably, the outer wall of the limiting block is provided with a plurality of accommodating grooves which extend up and down and are used for accommodating the limiting end part, the accommodating grooves are arranged at intervals left and right, and the number of the accommodating grooves corresponds to the number of the gears of the adjusting block;

when external force acts on the adjusting blocks, the limiting end part falls into the other accommodating groove from one accommodating groove, and meanwhile, the touch rod component is converted from being matched with the gear of one adjusting block to being matched with the other gear.

When the limiting end part is moved out of the accommodating groove, a user can feel resistance, so that the hand feeling is good; in addition, spacing tip can move to adjacent holding tank one by one, is difficult to directly cross a plurality of holding tanks and need make a round trip to remove the regulating block many times and adjust the gear that needs.

In order to support the extension arm, be provided with the cushion of two interval arrangements between the lateral wall of casing and the stopper, two cushions are used for supporting the extension arm, the lateral length of extension arm is greater than the distance between two cushions, and under the state of slide adjusting block, the extension arm is shelved on two cushions all the time. Through setting up the cushion that is used for supporting the extension arm, it is more steady to move about the extension arm like this.

In order to guide the sliding of the adjusting block, the adjusting block is provided with a blocking piece extending transversely, a certain distance is reserved between the blocking piece and the extension arm, and the blocking piece is in sliding fit with the inner side wall of the shell. Through the direction of separation blade, the removal of regulating block is more steady.

In order to enable the blocking pieces to slide stably, the blocking pieces are also placed on the cushion blocks, the transverse length of each blocking piece is also larger than the distance between the two cushion blocks, and the blocking pieces are also placed on the two cushion blocks all the time in the state of the sliding adjusting block.

As an improvement, the trigger rod assembly further comprises a supporting seat and a supporting table, the supporting table is arranged in the shell, the lower end of the trigger rod is supported in the middle of the supporting seat, the right end of the supporting seat is rotatably connected with the supporting table, a positioning convex block is arranged at the bottom of the left end of the supporting seat, an abutting portion is arranged on the adjusting block, the abutting portion is provided with at least two gears located at different height positions, the positioning convex block is matched with the corresponding gear, a sliding hole is transversely formed in the side wall of the bottom of the shell, an operating end of the adjusting block penetrates through the sliding hole and then extends out of the shell, and external force acts on the operating end of the adjusting block to.

For linkage and integration and for installation of the elastic piece, a microswitch for stopping the motor from running is arranged at the bottom of the supporting seat, the touch rod passes through the supporting seat and then is matched with the microswitch to act, the elastic piece is arranged on the touch rod, and the touch rod is supported by the elastic piece to have a tendency of keeping the touch rod to be disconnected with the microswitch upwards;

the supporting platform is provided with a through hole for the touch rod to pass through, the upper end of the elastic piece is abutted against the bottom of the supporting platform, and the lower end of the elastic piece is abutted against the supporting seat;

the bottom of the supporting table is provided with a positioning column, the left end of the supporting seat is provided with a vertical through hole, and the positioning column is movably arranged in the through hole in a penetrating mode.

The microswitch is arranged in the supporting seat, so that the structure is compact.

The elastic member may have various structures, and preferably, the elastic member is a spring or an elastic block or an elastic sheet.

Compared with the prior art, the utility model has the advantages of: through setting up stopper and spacing groove, when external force acts on the regulating block, the stopper can slide in the spacing groove, and through the direction of spacing groove, the slip of regulating block is more steady like this, feels better.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic view of FIG. 1 with a portion of the housing removed;

fig. 3 is an exploded view of an embodiment of the present invention;

fig. 4 is an enlarged view of a portion of fig. 3.

Fig. 5 is another exploded view of an embodiment of the present invention;

fig. 6 is yet another exploded view of an embodiment of the present invention.

FIG. 7 is a schematic view of the adjustment mechanism of FIG. 6;

FIG. 8 is a perspective view of the bottom wall of the housing;

FIG. 9 is a schematic view from another angle of FIG. 8;

fig. 10 is a perspective view of an adjusting block according to an embodiment of the present invention.

Fig. 11 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Fig. 1 to 11 show a preferred embodiment of a pencil sharpener according to an embodiment of the present invention. The pencil sharpener comprises a shell 1, an adjusting mechanism 2 and a tool rest cover 300, wherein the adjusting mechanism 2 is installed on the shell 1 and is used for adjusting the thickness of a pencil lead.

In this embodiment, the housing 1 includes a base 100 capable of being fastened to each other and a waste container 200 located on the base 100 and used for containing waste. The scrap box 200 includes a box body 201 having a top opening 203 and a cover 202 for covering the top opening 203 and detachably connected to the top opening 203, and a bottom edge of the cover 202 and a top edge of the box body 201 are detachably connected by a snap. The tool rest cover 300 is arranged in the waste chip barrel 200 and is detachably connected with the base 100, the middle part of the bottom of the top cover 202 is fixed with the top of the tool rest cover 300, and when the top cover 202 is installed on the top opening 203 of the barrel body 201 of the waste chip barrel 200, the bottom of the tool rest cover 300 is installed on the base 100 at the same time.

The housing 1 is provided with a limiting block 13, and the limiting block 13 is specifically arranged on the inner bottom wall of the housing 1 (i.e. on the inner bottom wall of the base 100) and has a certain distance from the inner side wall of the housing 1. The outer wall of the stopper 13 has a plurality of receiving grooves 14 extending vertically and receiving the stopper end 2651, the plurality of receiving grooves 14 are arranged at left and right intervals, and the number of the receiving grooves 14 corresponds to the number of the retaining portions 2611 of the adjusting block 26. In this embodiment, there are 3 gears 2611, and the accommodation grooves 14 are divided into two groups, i.e., a left group and a right group, each group having 3 gears; in other embodiments, only one set of receiving grooves 14 may be provided. Two cushion blocks 12 arranged at intervals are arranged between the side wall of the shell 1 and the limiting block 13, the two cushion blocks 12 are used for supporting the extension arm 265, the transverse length of the extension arm 265 is larger than the distance between the two cushion blocks 12, and the extension arm 265 is always placed on the two cushion blocks 12 in a state of the sliding adjusting block 26.

The adjustment mechanism 2 includes a hob head 22, an adjustment block 26, and a trip rod assembly.

The hob head 22 is used for mounting the hob 21, and the hob head 22 has a pencil sharpening hole 221 and a lower opening 222 (fig. 11) communicating with the pencil sharpening hole 221.

The adjusting block 26 has gears 2611 at 3 different heights and can move left and right relative to the housing 1, and the touch rod assembly is used for cooperating with the gears 2611 of the adjusting block 26. The adjusting block 26 is provided with a limiting groove 264 in sliding fit with the limiting block 13, and specifically, the limiting groove 264 is located at a position corresponding to the bottom of the adjusting block 26. The adjusting block 26 has 2 extending arms 265 extending transversely, each extending arm 265 has a limiting end 2651 capable of abutting against the outer wall of the limiting block 13, preferably, the limiting end 2651 is made of an elastic material, so that when the adjusting block 26 is installed, friction is increased and the adjusting block cannot fall off easily, and in a state where an external force is applied to the adjusting block 26, the limiting end 2651 slides along the outer wall of the adjusting block 26, and the trip rod assembly is switched from being engaged with the shift position 2611 of one of the adjusting blocks 26 to being engaged with the other shift position 2611.

The adjustment block 26 also has a laterally extending stop 262, the stop 262 being spaced from the extension arm 265, the stop 262 being in sliding engagement with the inside wall of the housing 1. The blocking piece 262 also rests on the cushion blocks 12, the transverse length of the blocking piece 262 is also larger than the distance between the two cushion blocks 12, and the blocking piece 262 also always rests on the two cushion blocks 12 in the state of sliding the adjusting block 26.

The touch bar assembly includes a touch bar 24, a support base 25, a support base 27 and an elastic member.

The upper end of the touch rod 24 is inserted into the hob head 22 and can move up and down in the opening 222 of the hob head 22, and when the touch rod 24 assembly is matched with the different-height shift 2611 of the adjusting block 26, the touch rod 24 is correspondingly close to or far away from the pencil sharpening hole 221.

The lower end of the touch rod 24 is supported in the middle of the support base 25, the right end of the support base 25 is rotatably connected with the support base 27, the rotatable connection can be hinged, a positioning bump 251 is arranged at the bottom of the left end of the support base 25, an abutting portion 261 is arranged on the adjusting block 26, the abutting portion 261 is provided with 3 gears 2611 located at different height positions, the positioning bump 251 is matched with the corresponding gear 2611, the bottom side wall of the shell 1 is provided with a sliding hole 11 arranged transversely, an operating end 263 of the adjusting block 26 penetrates through the sliding hole 11 and then extends out of the shell 1, and external force acts on an operating end 263 of the adjusting block 26 to enable the positioning bump 251 of the support base 25 to be located in different gears.

The bottom of the supporting seat 25 is provided with a microswitch 3 for stopping the motor from running, the touch rod 24 passes through the supporting seat 25 and then is matched with the microswitch 3 to act, the touch rod 24 is provided with an elastic piece (not shown in the figure), and the elastic piece supports the touch rod 24 so that the touch rod 24 has a tendency of keeping the microswitch 3 disconnected upwards; in this embodiment, the elastic member is a spring, and in other embodiments, the elastic member may be replaced by an elastic block or an elastic sheet.

The supporting platform 27 is arranged in the shell 1, the supporting platform 27 is provided with a through hole 271 for the touch rod 24 to pass through, the upper end of the elastic piece is abutted against the bottom of the supporting platform 27, and the lower end of the elastic piece is abutted against the supporting seat 25; the bottom of the supporting platform 27 is provided with a positioning column 272, the left end of the supporting base 25 is provided with a vertical through hole 252, and the positioning column 272 is movably arranged in the through hole 252 in a penetrating manner.

The pencil sharpener further comprises a USB interface 4, a circuit board 5, an indicator light 6, a motor 7 and an automatic pencil propelling and retracting device 500, the structures and the corresponding connection relations of the parts are the prior art, and reference can be made to the patent with the application number of CN201920581156.1 (with the publication number of CN209888499U) of the applicant. The sharpener further includes an actuator 400. the actuator 400 includes a slider 401 that slides relative to the cap 202 and a microswitch 402 that cooperates with the slider 401. One end of the slider 401 is located above the pen feeding hole of the automatic pen feeding and retracting device 500.

The working principle and the using process of the pencil sharpener of the embodiment are as follows.

When the thickness of the pen core needs to be adjusted, the operating end 263 of the adjusting block 26 is moved leftwards or rightwards, the limiting end 2651 falls into the other accommodating groove 14 from one of the accommodating grooves 14, and meanwhile, the trip rod assembly is converted from being matched with the gear 2611 of one of the adjusting blocks 26 to being matched with the other gear 2611. When the positioning protrusion 251 is located in the higher shift position 2611, the upper end of the touch rod 24 is close to the pencil sharpening hole 221, the sharpened pencil lead is thick and short, and when the positioning protrusion 251 is located in the lower shift position 261, the upper end of the touch rod 24 is far away from the pencil sharpening hole 221, and the sharpened pencil lead is thin and long. The extension arm 265 and the stop piece 262 rest on the two blocks 12, so that the movement of the adjusting block 26 is relatively smooth. Spacing end 2651 changes between different holding tanks 14, and user's operation feels better.

When cutting is needed, the pencil sharpener is powered on, the indicator lamp 6 is lightened, the pencil is inserted into the pencil sharpening hole 221 and then abuts against the sliding block 401, the sliding block 401 triggers the micro switch 402, the starting device 400 is triggered, the motor 7 drives the automatic pencil advancing and retreating device 500 to automatically advance the pencil, and the hob 21 cuts the pencil;

after the pencil core is cut in place, the pencil core acts on the pencil blocking block 23, the pencil blocking block 23 pushes the touch rod 24 to move downwards to trigger the micro switch 3, the motor 7 rotates reversely after idling, and the rubber roller of the automatic pencil feeding and withdrawing device 500 rotates reversely to feed out the pencil.

When the sweeps need to be poured, because the bottom of the hob head 22 and the bottom of the hob head cover 300 are detachably connected with the base 100, after upwards acting on the top of the sweeps barrel 200, the bottoms of the hob head 22 and the hob head cover 300 are separated from the base 100 and taken out of the top opening 203 of the barrel body 201, then the pencil sharpener is slowly inclined, and the sweeps are poured out of the top opening 203 of the sweeps barrel 200.

Claims

1. A pencil sharpener comprises a shell (1) and an adjusting mechanism (2) which is arranged on the shell (1) and used for adjusting the thickness of a pencil lead, wherein the adjusting mechanism (2) comprises a hob head (22), an adjusting block (26) and a touch rod assembly, the hob head (22) is used for installing a hob (21), the hob head (22) is provided with a pencil sharpening hole (221) and a lower opening (222) communicated with the pencil sharpening hole (221), the adjusting block (26) is provided with gears (2611) which are positioned at different heights and can move left and right relative to the shell (1), the touch rod assembly is used for being matched with the gears (2611) of the adjusting block (26), the touch rod assembly comprises a touch rod (24), the upper end of the touch rod (24) is inserted on the hob head (22) and can move up and down in the opening (222) of the hob head (22), and when the touch rod assembly is matched with the gears (2611) of the adjusting block (26) at, correspondingly, make touch rod (24) be close to or keep away from cut a hole (221), its characterized in that:

one of the adjusting block (26) and the shell (1) is provided with a limiting block (13), and the other of the adjusting block (26) and the shell (1) is provided with a limiting groove (264) in sliding fit with the limiting block (13).

2. The sharpener of claim 1 wherein: the limiting block (13) is arranged on the inner bottom wall of the shell (1) and has a certain distance with the inner side wall of the shell (1), and the limiting groove (264) is located at a position corresponding to the bottom of the adjusting block (26).

3. The sharpener of claim 2, wherein: the adjusting block (26) is provided with a transversely extending extension arm (265), the extension arm (265) is provided with a limiting end part (2651) which can be abutted against the outer wall of the limiting block (13), under the state that external force acts on the adjusting block (26), the limiting end part (2651) slides along the outer wall of the adjusting block (26), and meanwhile, the touch rod assembly is converted into being matched with the other gear (2611) from being matched with the gear (2611) of one adjusting block (26).

4. The sharpener of claim 3, wherein: the outer wall of the limiting block (13) is provided with a plurality of accommodating grooves (14) which extend up and down and are used for accommodating the limiting end part (2651), the accommodating grooves (14) are arranged at intervals left and right, and the number of the accommodating grooves (14) corresponds to the number of the gears (2611) of the adjusting block (26);

when external force acts on the adjusting blocks (26), the limiting end part (2651) falls into the other accommodating groove (14) from one accommodating groove (14), and meanwhile, the touch rod assembly is converted from being matched with the gear (2611) of one adjusting block (26) to being matched with the other gear (2611).

5. The sharpener of claim 3, wherein: be provided with two interval arrangement's cushion (12) between the lateral wall of casing (1) and stopper (13), two cushion (12) are used for supporting extension arm (265), the lateral length of extension arm (265) is greater than the distance between two cushion (12), and under the state of slip regulating block (26), extension arm (265) are shelved on two cushion (12) all the time.

6. The sharpener of claim 3, wherein: the adjusting block (26) is provided with a blocking piece (262) extending transversely, a certain distance is reserved between the blocking piece (262) and the extending arm (265), and the blocking piece (262) is in sliding fit with the inner side wall of the shell (1).

7. The sharpener of claim 6, wherein: the baffle plates (262) are also placed on the cushion blocks (12), the transverse length of the baffle plates (262) is also larger than the distance between the two cushion blocks (12), and the baffle plates (262) are also placed on the two cushion blocks (12) all the time in the state of sliding the adjusting block (26).

8. The sharpener of any one of claims 1-7, wherein: the touch rod component also comprises a supporting seat (25) and a supporting platform (27), the supporting platform (27) is arranged in the shell (1), the lower extreme of touch pole (24) supports in the middle part of supporting seat (25), the right-hand member and the brace table (27) of supporting seat (25) rotate to be connected, the bottom of the left end of supporting seat (25) is equipped with location lug (251), be equipped with butt portion (261) on regulating block (26), butt portion (261) have at least two be located not co-altitude position keep off position (2611), location lug (251) with correspond fender position (2611) cooperation, the bottom lateral wall of casing (1) has slide opening (11) of horizontal setting, outside operation end (263) of regulating block (26) pass slide opening (11) back and stretch out casing (1), external force acts on operation end (263) of regulating block (26), make the location lug (251) of supporting seat (25) be located different fender positions (2611).

9. The sharpener of claim 8 wherein: the bottom of the supporting seat (25) is provided with a microswitch (3) for stopping the motor from running, the touch rod (24) passes through the supporting seat (25) and then is matched with the microswitch (3) to act, and the touch rod (24) is provided with an elastic piece which supports the touch rod (24) so that the touch rod (24) has the tendency of keeping the microswitch (3) disconnected upwards;

the supporting platform (27) is provided with a through hole (271) for the touch rod (24) to pass through, the upper end of the elastic piece is propped against the bottom of the supporting platform (27), and the lower end of the elastic piece is propped against the supporting seat (25);

the bottom of supporting bench (27) is equipped with reference column (272), and the left end of supporting seat (25) has vertical through-hole (252), and reference column (272) is worn to establish in this through-hole (252) movably.

10. The sharpener of claim 9 wherein: the elastic piece is a spring or an elastic block or an elastic sheet.