CN209869871U - Safety structure of electric pencil sharpener - Google Patents
Safety structure of electric pencil sharpener Download PDFInfo
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- CN209869871U CN209869871U CN201920582032.5U CN201920582032U CN209869871U CN 209869871 U CN209869871 U CN 209869871U CN 201920582032 U CN201920582032 U CN 201920582032U CN 209869871 U CN209869871 U CN 209869871U
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- sliding block
- pressing block
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- elastic piece
- hole
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Abstract
A safety structure of an electric pencil sharpener comprises a motor, a knife rest cover, a sliding block, a pressing rod, a micro switch, a pressing block, a first elastic piece and a second elastic piece, wherein the knife rest cover is longitudinally provided with a through hole; the sliding block is transversely arranged, one end of the sliding block is positioned above the through hole, the other end of the sliding block is matched with the upper end of the pressure rod, the lower end of the pressure rod is matched with the micro switch, the micro switch is electrically connected with the motor, the pressure rod can trigger or disconnect the micro switch to correspondingly start or stop the motor to run, and when the sliding block is far away from the through hole, the upper end of the pressure rod moves downwards after being pressed to trigger the micro switch; when the pressing block is pressed or external force is relieved, the transverse limit of the sliding block can be correspondingly relieved or can be correspondingly relieved; the first elastic piece supports the sliding block; the second elastic piece supports the compression rod. Compared with the prior art, the sliding block is more limited by the pressing block in one step, so that the starting motor needs two steps, one-step misoperation is prevented, the starting motor is directly started, the safety is high, and the structure is simple.
Description
Technical Field
The utility model relates to an electronic ware technical field that cuts especially relates to an electronic safety structure who cuts a ware.
Background
The electric pencil sharpener comprises a shell, a motor and a hob, wherein the motor and the hob are both located in the shell, and the motor drives the hob to sharpen a pencil. Because of the hob rotational speed is very fast, when the misoperation makes the casing open or the casing does not close, pivoted hob has the potential safety hazard.
For this reason, patents have been developed to address the above phenomena. For example, chinese patent application No. CN201710839718.3 (publication No. CN107599706A) discloses a full automatic pencil sharpener, which includes a housing and an electric sharpening assembly disposed in the housing, and further includes a sharpening start assembly for starting the electric sharpening assembly after a pencil is inserted, a shift position adjusting assembly for adjusting a shaping specification of the pencil, and a sharpening close assembly for closing the electric sharpening assembly after the pencil is finished setting a sharpening specification.
The above patent has realized the full automatic control of pencil planing, is equipped with safety switch in the junction of main part shell and base in addition when main part shell and base separation, and this safety switch makes electronic planing subassembly be in the off-state, discloses that safety switch can adopt shell fragment formula structure, communicates under main part shell and the closed effort of base, but does not disclose safety switch's concrete structure and the cooperation structure with other part.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a simple structure, safe and reliable's electronic safe structure who cuts a ware.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an electronic safety structure who cuts a ware, includes motor and knife rest cover, and the knife rest cover vertically is equipped with the through-hole that supplies the pen to pass, its characterized in that: the pressing device also comprises a sliding block, a pressing rod, a microswitch, a pressing block, a first elastic piece and a second elastic piece;
the sliding block is transversely arranged, one end of the sliding block is positioned above the through hole, and the other end of the sliding block is matched with the upper end of the pressure rod;
the lower end of the pressure lever is matched with the microswitch, the microswitch is electrically connected with the motor, the pressure lever can trigger or disconnect the microswitch so as to correspondingly start or stop the motor, and when the sliding block is far away from the through hole, the upper end of the pressure lever is pressed and then moves downwards to trigger the microswitch;
when the pressing block is pressed or external force is relieved, the transverse limit of the sliding block can be correspondingly relieved or can be correspondingly relieved;
the first elastic piece supports the sliding block to enable the sliding block to keep a trend of being close to the through hole;
the second elastic piece supports the pressure lever so that the pressure lever keeps the trend of disconnecting the micro switch upwards.
For safety, the tool rest further comprises a third elastic piece matched with the pressing block, the pressing block is longitudinally arranged, the pressing block is provided with a first convex part, the sliding block is provided with a second convex part matched with the first convex part, when the pressing block is pressed downwards, the first convex part is separated from the second convex part, when external force on the pressing block is relieved, the first convex part is transversely abutted against the second convex part, one end of the third elastic piece is supported on the upper surface of the tool rest cover, the other end of the third elastic piece is supported on the lower surface of the first convex part, and the third elastic piece supports the pressing block so that the pressing block is upwards kept in a trend of transversely abutting against the sliding block. Like this, it is spacing to the sliding block to have increased one step more, when pressing the briquetting and pushing down, the sliding block just can final starter motor, reduces because of one step of maloperation sliding block and starter motor's danger.
For guiding the movement of the sliding block, the top of the tool rest cover is also provided with a guide groove for guiding the sliding block to slide, the guide groove is transversely arranged, the left side of the guide groove is provided with a first opening, the left end of the sliding block extends out of the first opening, the right side of the guide groove is provided with a second opening, the right end of the sliding block extends out of the second opening, one side of the guide groove, facing the pressing block, is provided with a third opening with length along the sliding direction of the sliding block, and a second convex part of the sliding block extends out of the third opening and is matched with the first convex part of the pressing block.
In order to accommodate the first elastic piece, the bottom of the sliding block is provided with an accommodating groove which is transversely arranged, the second openings are provided with at least two positioning blocks which are positioned between two adjacent second openings, the upper ends of the positioning blocks extend into the accommodating groove, the left end of the first elastic piece is abutted against the left side groove wall of the accommodating groove, and the right end of the first elastic piece is abutted against the left side wall of the positioning block.
In order to support the third elastic piece, the top of the tool rest cover is also provided with a supporting groove for supporting the pressing block, the pressing block is provided with a circumferential annular flange, one end of the third elastic piece abuts against the bottom of the supporting groove, and the other end of the third elastic piece abuts against the annular flange of the pressing block.
In order to guide the up-and-down movement of the pressure rod, the side wall of the tool rest cover is provided with a first through hole for the up-and-down movement of the pressure rod, and when the pressure rod is not pressed, the upper end and the lower end of the pressure rod penetrate out of the first through hole.
For spacing the sliding block and the pressing block, the upper part of the tool rest cover is provided with a cover cap which can cover the sliding block and the pressing block, the cover cap is provided with a through hole for the pressing block to pass through, and when the pressing block is not pressed, the upper end of the pressing block extends out of the upper surface of the cover cap.
For safety, a shell is arranged outside the tool rest cover, the shell is provided with a hollow inner cavity for accommodating the tool rest cover, and after the shell is installed in place, the inner wall of the upper part of the shell can press the pressing block downwards to enable the first convex part of the pressing block to be separated from the second convex part of the sliding block. The limiting of the sliding block by the pressing block is removed after the casing is installed in place, the sliding block slides rightwards after the pencil extends into the through hole at the moment to finally start the motor, so that the motor cannot be started when the casing is not installed in place, and the exposed hob is prevented from causing danger to an operator.
In order to support the tool rest cover and the second elastic part, a support frame used for supporting the tool rest cover is arranged at the bottom of the tool rest cover, the support frame is provided with a second through hole for the pressing rod to move up and down, an annular boss is arranged on the inner wall of the second through hole, an annular convex edge matched with the annular boss is arranged on the outer wall of the pressing rod, the upper end of the second elastic part is abutted against the lower end face of the annular convex edge, and the lower end of the second elastic part is abutted against the upper end face of the annular boss.
Preferably, the first elastic member or/and the second elastic member or/and the third 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: set up the sliding block, the depression bar, micro-gap switch, press the briquetting, first elastic component and second elastic component, when pressing the briquetting pressurized, remove the horizontal spacing to the sliding block, after the through-hole was put into to the pencil this moment, pencil touching sliding block makes the sliding block move to the right and acts on the depression bar, micro-gap switch triggers, the motor starts, prior art only need trigger micro-gap switch just can the starter motor, only one-step operation, when the maloperation and during the starter motor, it is more dangerous, compare prior art, the utility model discloses it is more spacing to the sliding block to have one step according to the briquetting, the starter motor needs two steps like this, prevents one-step maloperation and direct start motor, has reduced the risk, and the security is high.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention installed in a housing;
FIG. 2 is a schematic view in the bottom direction of FIG. 1;
FIG. 3 is a schematic view of FIG. 1 with the end cap removed;
FIG. 4 is a schematic view of FIG. 3 with the cover and end cap removed;
FIG. 5 is a longitudinal cross-sectional view of FIG. 1;
FIG. 6 is another longitudinal cross-sectional view of FIG. 1;
fig. 7 is a schematic diagram of an embodiment of the present invention;
FIG. 8 is the view of FIG. 7 with the stand removed;
fig. 9 is an exploded view of an embodiment of the present invention;
fig. 10 is an exploded view of the tool holder cover, the cover cap, the slide block, the pressing block, the first elastic member, and the second elastic member.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
For convenience of description, hereinafter, "up" and "down" refer to respective orientations when operated by a user.
As shown in fig. 1 to 10, the safety structure of the electric pencil sharpener comprises a support frame 26, a motor 1, a microswitch 5 and a second elastic element 8 are installed in the support frame 26, a tool rest cover 2 is installed on the support frame 26, a sliding block 3, a pressure bar 4, the microswitch 5, a pressing block 6, a first elastic element 7, a third elastic element 9 and a cover cap 25 are installed on the tool rest cover 2, and a shell 10 is arranged outside the tool rest cover 2.
The tool rest cover 2 is longitudinally provided with a through hole 21 for a pen to pass through, the sliding block 3 is transversely arranged on the tool rest cover 2, preferably, the sliding block 3 is radially arranged along the through hole 21, one end of the sliding block 3 is positioned above the through hole 21, the other end of the sliding block is matched with the upper end of the pressure rod 4 to act, and the other end of the sliding block inclines downwards from right to left to act on the pressure rod 4; the top of the tool rest cover 2 is also provided with a supporting groove 23 for supporting the pressing block 6, the pressing block 6 is provided with an annular flange 62 which is arranged circumferentially, one end of the third elastic piece 9 is abutted against the bottom of the supporting groove 23, and the other end is abutted against the annular flange 62 of the pressing block 6; the top of the tool rest cover 2 is further provided with a guide groove 22 for guiding the sliding block 3 to slide, the guide groove 22 is transversely arranged, the left side of the guide groove 22 is provided with a first opening 22a, the left end of the sliding block 3 extends out of the first opening 22a, the right side of the guide groove 22 is provided with a second opening 22b, the right end of the sliding block 3 extends out of the second opening 22b, one side of the guide groove 22 facing the pressing block 6 is provided with a third opening 22c with a length along the sliding direction of the sliding block 3, and the second convex portion 31 of the sliding block 3 extends out of the third opening 22c and is matched with the first convex portion 61 of the pressing block 6.
The bottom of the sliding block 3 has a receiving groove 32 arranged transversely, the second openings 22b have two positioning blocks 321 located between two adjacent second openings 22b, the upper ends of the positioning blocks 321 extend into the receiving groove 32, the left end of the first elastic element 7 abuts against the left side wall of the receiving groove 32, and the right end abuts against the left side wall of the positioning blocks.
The lower end of the pressure lever 4 is matched with the micro switch 5, the micro switch 5 is arranged on the circuit board 20 and is electrically connected with the motor 1, the pressure lever 4 can trigger or disconnect the micro switch 5 to correspondingly start or stop the motor 1 to run, and when the sliding block 3 is far away from the through hole 21, the upper end of the pressure lever 4 is pressed and then moves downwards to trigger the micro switch 5; the tendency of the first elastic member 7 to support the sliding block 3 so as to keep the sliding block 3 close to the through hole 21; the second elastic member 8 supports the pressing rod 4 so that the pressing rod 4 keeps the tendency of opening the micro switch 5 upwards. Preferably, the first elastic member 7 and the second elastic member 8 are both springs.
When the pressing block 6 is pressed or external force is released, the transverse limit of the sliding block 3 can be released or the transverse limit of the sliding block 3 can be correspondingly released, the third elastic piece 9 is matched with the pressing block 6, preferably, the third elastic piece 9 is a spring, the pressing block 6 and the third elastic piece 9 are both arranged longitudinally, the pressing block 6 is provided with a first convex part 61, the sliding block 3 is provided with a second convex part 31 matched with the first convex part 61, when the pressing block 6 is pressed downwards, the first convex part 61 is separated from the second convex part 31, when the external force on the pressing block 6 is released, the first convex part 61 is transversely abutted against the second convex part 31, one end of the third elastic piece 9 is supported on the upper surface of the tool rest cover 2, the other end is supported on the lower surface of the first convex part 61, and the third elastic piece 9 supports the pressing block 6 to enable the pressing block 6 to be upwards kept in a trend of transversely abutted against the sliding block 3.
The side wall of the tool rest cover 2 is provided with a first through hole 24 for the compression bar 4 to move up and down, and when the compression bar 4 is not compressed, the upper end and the lower end of the compression bar 4 penetrate out of the first through hole 24; the upper part of the tool rest cover 2 is provided with a cover 25 which can cover the sliding block 3 and the pressing block 6, the cover 25 is provided with a through hole 251 for the pressing block 6 to pass through, and when the pressing block 6 is not pressed, the upper end of the pressing block 6 extends out of the upper surface of the cover 25.
Referring to fig. 1 to 6, the housing 10 has a hollow cavity for accommodating the tool rest cover 2, and when the housing 10 is mounted in place, the upper inner wall of the housing 10 can press the pressing block 6 downward, so that the first protrusion 61 of the pressing block 6 is separated from the second protrusion 31 of the sliding block 3; the housing 10 includes a waste chip container 101 located on the outer periphery of the holder cover 2 and an end cap 102 capable of opening and closing with respect to the waste chip container 101, and the end cap 102 is provided with a insertion hole through which a pencil can pass.
The support frame 26 is located at the bottom of the tool holder cover 2 and is used for supporting the tool holder cover 2, the support frame 26 is provided with a second through hole 261 for the press rod 4 to move up and down, the inner wall of the second through hole 261 is provided with an annular boss 2611, the outer wall of the press rod 4 is provided with an annular convex edge 41 matched with the annular boss 2611, the upper end of the second elastic member 8 is abutted against the lower end face of the annular convex edge 41, and the lower end of the second elastic member 8 is abutted against the upper end face of the annular boss 241.
In the embodiment, the safety structure of the electric pencil sharpener is used according to the following principle:
when a pencil needs to be cut, the waste chip barrel 101 is arranged outside the tool rest cover 2, the end cover 102 is arranged above the waste chip barrel 101, and the inner wall of the end cover 102 has downward force on the pressing block 6 to separate the pressing block 6 from the sliding block 3; putting a pencil into the through hole 21 of the tool rest cover 2 and pressing the pencil, wherein the pencil is contacted with the sliding block 3 to enable the sliding block 3 to move rightwards along the guide groove 22, the sliding block 3 moves rightwards and simultaneously acts on the pressing rod 4 downwards, the pressing rod 4 triggers the micro switch 5, the motor 1 starts to rotate, and the hob starts to cut the pencil;
after cutting is finished, the pencil is removed from the through hole 21 of the tool rest cover 2, the sliding block 3 is reset to be positioned in the through hole 21 by the first elastic piece 7, the second elastic piece 8 acts on the pressing rod 4 upwards to enable the pressing rod 4 to switch off the micro switch 5, and the motor 1 stops running;
when the sweeps need to be poured, the end cover 102 is opened, the sweeps are poured out from the sweeps barrel 101, the pressing block 6 moves upwards under the action of the third elastic piece 9, the pressing block 6 is enabled to transversely abut against the sliding block 3, the sliding block 3 cannot move rightwards at the moment, and the motor 1 is finally started to operate, so that the dangerous condition of cutting when the end cover 102 is opened is avoided.
Claims (10)
1. The utility model provides a safety structure of electronic ware of cutting, includes motor (1) and knife rest cover (2), knife rest cover (2) vertically are equipped with through-hole (21) that supply the pen to pass, its characterized in that: the device also comprises a sliding block (3), a pressure lever (4), a microswitch (5), a pressing block (6), a first elastic piece (7) and a second elastic piece (8);
the sliding block (3) is transversely arranged, one end of the sliding block (3) is positioned above the through hole (21), and the other end of the sliding block is matched with the upper end of the pressure lever (4);
the lower end of the pressure lever (4) is matched with the micro switch (5), the micro switch (5) is electrically connected with the motor (1), the pressure lever (4) can trigger or disconnect the micro switch (5) to correspondingly start or stop the motor (1) to run, and when the sliding block (3) is far away from the through hole (21), the upper end of the pressure lever (4) is pressed and then moves downwards to trigger the micro switch (5);
when the pressing block (6) is pressed or external force is relieved, the transverse limit of the sliding block (3) or the transverse limit of the sliding block (3) can be correspondingly relieved;
the first elastic piece (7) supports the sliding block (3) to enable the sliding block (3) to keep a trend of approaching the through hole (21);
the second elastic piece (8) supports the pressure lever (4) so that the pressure lever (4) keeps the trend of disconnecting the micro switch (5) upwards.
2. The security feature of claim 1, wherein: the tool rest further comprises a third elastic piece (9) matched with the pressing block (6), the pressing block (6) is longitudinally arranged, the pressing block (6) is provided with a first convex part (61), the sliding block (3) is provided with a second convex part (31) matched with the first convex part (61), when the pressing block (6) is pressed downwards, the first convex part (61) is separated from the second convex part (31), when the external force on the pressing block (6) is relieved, the first convex part (61) is transversely abutted against the second convex part (31), one end of the third elastic piece (9) is supported on the upper surface of the tool rest cover (2), the other end of the third elastic piece is supported on the lower surface of the first convex part (61), and the third elastic piece (9) supports the pressing block (6) so that the pressing block (6) is upwards kept in a trend of transversely abutted against the sliding block (3).
3. The security feature of claim 2, wherein: the top of the tool rest cover (2) is further provided with a guide groove (22) used for guiding the sliding block (3) to slide, the guide groove (22) is transversely arranged, the left side of the guide groove (22) is provided with a first opening (22a), the left end of the sliding block (3) extends out of the first opening (22a), the right side of the guide groove (22) is provided with a second opening (22b), the right end of the sliding block (3) extends out of the second opening (22b), one side, facing the pressing block (6), of the guide groove (22) is provided with a third opening (22c) with length along the sliding direction of the sliding block (3), and a second convex portion (31) of the sliding block (3) extends out of the third opening (22c) and is matched with a first convex portion (61) of the pressing block (6).
4. The security feature of claim 3, wherein: the bottom of sliding block (3) has horizontal arrangement's holding tank (32), second opening (22b) have at least two and be formed with locating piece (321) that are located between two adjacent second openings (22b), the upper end of this locating piece (321) stretches into in holding tank (32), the left end of first elastic component (7) offsets with the left side cell wall of holding tank (32), and the right-hand member offsets with the left side wall of locating piece (321).
5. The security feature of claim 2, wherein: the top of the tool rest cover (2) is also provided with a supporting groove (23) for supporting the pressing block (6), the pressing block (6) is provided with an annular flange (62) which is circumferentially arranged, one end of the third elastic piece (9) abuts against the bottom of the supporting groove (23), and the other end of the third elastic piece abuts against the annular flange (62) of the pressing block (6).
6. The security feature of claim 1, wherein: the side wall of the knife rest cover (2) is provided with a first through hole (24) for the compression bar (4) to move up and down, and when the compression bar (4) is not compressed, the upper end and the lower end of the compression bar (4) penetrate out of the first through hole (24).
7. The security feature of claim 1, wherein: the upper part of the tool rest cover (2) is provided with a cover cap (25) which can cover the sliding block (3) and the pressing block (6), the cover cap (25) is provided with a through hole (251) for the pressing block (6) to pass through, and when the pressing block (6) is not pressed, the upper end of the pressing block (6) extends out of the upper surface of the cover cap (25).
8. The security feature of claim 1, wherein: a shell (10) is arranged outside the tool rest cover (2), the shell (10) is provided with a hollow inner cavity for accommodating the tool rest cover (2), and after the shell (10) is installed in place, the inner wall of the upper part of the shell (10) can press the pressing block (6) downwards so as to separate the first convex part (61) of the pressing block (6) from the second convex part (31) of the sliding block (3).
9. The security feature of claim 1, wherein: the tool rest cover is characterized in that a support frame (26) used for supporting the tool rest cover (2) is arranged at the bottom of the tool rest cover (2), the support frame (26) is provided with a second through hole (261) for the pressing rod (4) to move up and down, the inner wall of the second through hole (261) is provided with an annular boss (2611), the outer wall of the pressing rod (4) is provided with an annular convex edge (41) matched with the annular boss (2611), the upper end of a second elastic part (8) is abutted to the lower end face of the annular convex edge (41), and the lower end of the second elastic part (8) is abutted to the upper end face of the annular boss (2611).
10. The safety structure according to any one of claims 1 to 9, wherein: the first elastic part (7) or/and the second elastic part (8) or/and the third elastic part (9) is/are a spring or an elastic block or an elastic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582032.5U CN209869871U (en) | 2019-04-25 | 2019-04-25 | Safety structure of electric pencil sharpener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582032.5U CN209869871U (en) | 2019-04-25 | 2019-04-25 | Safety structure of electric pencil sharpener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209869871U true CN209869871U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920582032.5U Active CN209869871U (en) | 2019-04-25 | 2019-04-25 | Safety structure of electric pencil sharpener |
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| Country | Link |
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| CN (1) | CN209869871U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169206A (en) * | 2020-03-11 | 2020-05-19 | 三木控股集团有限公司 | Electric safety pencil sharpener |
| CN112757824A (en) * | 2021-02-05 | 2021-05-07 | 宁波天天文具有限公司 | Trigger device and electric pencil sharpener |
| CN112757823A (en) * | 2021-02-05 | 2021-05-07 | 宁波天天文具有限公司 | Electric pencil sharpener |
-
2019
- 2019-04-25 CN CN201920582032.5U patent/CN209869871U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169206A (en) * | 2020-03-11 | 2020-05-19 | 三木控股集团有限公司 | Electric safety pencil sharpener |
| CN112757824A (en) * | 2021-02-05 | 2021-05-07 | 宁波天天文具有限公司 | Trigger device and electric pencil sharpener |
| CN112757823A (en) * | 2021-02-05 | 2021-05-07 | 宁波天天文具有限公司 | Electric pencil sharpener |
| CN112757823B (en) * | 2021-02-05 | 2022-08-16 | 宁波天天文具有限公司 | Electric pencil sharpener |
| CN112757824B (en) * | 2021-02-05 | 2022-08-16 | 宁波天天文具有限公司 | Trigger device and electric pencil sharpener |
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