阅读说明：本技术 电动削笔机安全锁结构 (Safety lock structure of electric pencil sharpener ) 是由 龚能能 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种电动削笔机安全锁结构,包括外壳(1)、上盖(2)和隔板(3),所述隔板(3)的顶面设有第一限位结构和第二限位结构,所述隔板(3)上设有笔尖拨块(4)、入笔启动开关(5)和旋转锁扣(6),所述笔尖拨块(4)在停止工作状态位于第一限位结构和第二限位结构之间,且一部分位于第一通孔(3.1)顶部,所述笔尖拨块(4)在工作状态与入笔启动开关(5)的拨片相抵且远离第一通孔(3.1)顶部。该电动削笔机安全锁结构采用机械结构在上盖打开或关闭时自动实现电源开关的开和关、可靠性好、耐用性好、且成本低。(The invention discloses a safety lock structure of an electric pencil sharpener, which comprises a shell (1), an upper cover (2) and a partition plate (3), wherein the top surface of the partition plate (3) is provided with a first limit structure and a second limit structure, the partition plate (3) is provided with a pencil point shifting block (4), a pencil lead-in starting switch (5) and a rotary lock catch (6), the pencil point shifting block (4) is positioned between the first limit structure and the second limit structure in a stop working state, one part of the pencil point shifting block is positioned at the top of a first through hole (3.1), and the pencil point shifting block (4) is abutted against a shifting piece of the pencil lead-in starting switch (5) and is far away from the top of the first through hole (3.1) in a working state. The safety lock structure of the electric pencil sharpener adopts a mechanical structure to automatically realize the on and off of the power switch when the upper cover is opened or closed, and has good reliability, good durability and low cost.)

1. The utility model provides an electronic penknife safety lock structure, includes shell (1), upper cover (2) and baffle (3), the top at shell (1) is established in upper cover (2), establish in shell (1) baffle (3), be equipped with a confession pen male first cut a hole (3.1) on baffle (3), also be equipped with a second of cutting a hole (3.1) and aliging with first on upper cover (2) and cut a hole (2.1), its characterized in that: the top surface of baffle (3) is equipped with first limit structure and second limit structure, be equipped with nib shifting block (4), go into a starting switch (5) and rotatory hasp (6) on baffle (3), the one end of nib shifting block (4) is rotated and is connected spliced pole (3.3) at baffle (3) top, the other end of nib shifting block (4) is located first limit structure and is gone into between a starting switch (5), nib shifting block (4) is located between first limit structure and the second limit structure at the off-working condition, and partly is located first cut a hole (3.1) top, nib shifting block (4) offset and keep away from first cut a hole (3.1) top at operating condition and the plectrum of income a starting switch (5).

2. The electric pencil sharpener safety lock structure of claim 1, wherein: first limit structure is for establishing arc arch (3.2) at the top edge of the first hole of cutting a brush (3.1) of baffle (3), nib shifting block (4) are in the off-the-shelf condition and are supported and shelter from partly first hole of cutting a brush (3.1) with the lateral wall of arc arch (3.2).

3. The electric pencil sharpener safety lock structure of claim 1, wherein: the second limiting structure is a rotary lock catch (6) which ascends and descends along the partition plate (3), a positioning rod (6.1) is arranged on the side wall of the rotary lock catch (6), the rotary lock catch (6) is compressed to descend in a covering state by the upper cover (2), and the positioning rod (6.1) abuts against the pen point shifting block (4); the rotary lock catch (6) rotates to rise when the upper cover (2) is opened, and the positioning rod (6.1) rotates by an angle to be separated from the pen point shifting block (4).

4. The electric pencil sharpener safety lock structure of claim 3, wherein: the rotary lock catch (6) rotates to ascend, and the positioning rod (6.1) rotates in the direction away from the pen-entering starting switch (5).

5. The electric pencil sharpener safety lock structure of claim 1, wherein: the bottom of the rotary lock catch (6) is sleeved with a spring (7), the top of the spring (7) is abutted against the bottom of the rotary lock catch (6), and the bottom of the spring is abutted against the bottom surface of the blind hole of the partition plate (3); the bottom of rotatory hasp (6) is equipped with spiral strip (6.2) more than two, and the bottom of every spiral strip (6.2) is equipped with drive arc surface (6.2.1) and first locating surface (6.2.2), stretching out of the blind hole of baffle (3) forms first bush (3.4), the lateral wall top of first bush (3.4) is equipped with breach (3.5) that quantity and spiral strip (6.2) correspond, and every breach (3.6) are equipped with slope spigot surface (3.5.1) and second locating surface (3.5.2), rotatory hasp (6) drive arc surface (6.2.1) when descending descend along slope spigot surface (3.5.1) spiral decline until first locating surface (6.2.2) and second locating surface (3.5.2) offset, rotatory hasp (6) are through spring (7) effect rising reset.

6. The electric pencil sharpener safety lock structure of claim 1, wherein: the inner bottom surface of the upper cover (2) is provided with a mandril (2.2), and the mandril abuts against the rotary lock catch (6) when the upper cover (2) is covered.

7. The electric pencil sharpener safety lock structure of claim 5, wherein: a protective cover (8) is further arranged on the top surface of the partition plate (3), a third pencil sharpening hole (8.1) is formed in the protective cover (8), and the third pencil sharpening hole (8.1) is aligned with the first pencil sharpening hole (3.1) and the second pencil sharpening hole (2.1); the bottom of safety cover (8) is equipped with second bush (8.2) with first bush (3.4) coaxial line, the lateral wall top of second bush (8.2) is equipped with the structure the same with first bush (3.4) and matches with the top of rotatory hasp (6) when ascending.

Technical Field

The invention relates to the technical field of stationery, in particular to a safety lock structure of an electric pencil sharpener.

Background

The electric pencil sharpener is used for sharpening a wooden-rod pencil to make a pencil lead sharpened. After the upper cover of the existing electric pencil sharpener is opened, a power switch is switched off, so that adverse consequences caused by misoperation of a consumer are avoided; at present, the micro switch is generally adopted to realize the operation, but the micro switch has higher cost, very limited service life and easy failure after a long time.

Disclosure of Invention

The invention aims to solve the technical problem of providing a safety lock structure of an electric pencil sharpener, which adopts a mechanical structure to automatically realize the on and off of a power switch when an upper cover is opened or closed, and has the advantages of good reliability, good durability and low cost.

The technical scheme of the invention is that the invention provides a safety lock structure of an electric pencil sharpener, which comprises a shell, an upper cover and a partition plate, wherein the upper cover is arranged at the top of the shell, the partition plate is arranged in the shell, the partition plate is provided with a first pencil sharpener hole for inserting a pencil, and the upper cover is also provided with a second pencil sharpener hole aligned with the first pencil sharpener hole, and is characterized in that: the top surface of baffle is equipped with first limit structure and second limit structure, be equipped with the nib shifting block on the baffle, go into a starting switch and rotatory hasp, the spliced pole at the baffle top is connected in the rotation of the one end of nib shifting block, the other end of nib shifting block is located first limit structure and goes into between the starting switch, the nib shifting block is located between first limit structure and the second limit structure at off-the-duty, and partly is located first machine hole top of cutting, the nib shifting block offsets and keeps away from first machine hole top of cutting with the plectrum of going into a starting switch at operating condition.

The first limiting structure is an arc-shaped protrusion arranged at the edge of the top end of the first pencil sharpener hole of the partition plate, and the pen point shifting block abuts against the side wall of the arc-shaped protrusion in a stop working state and shields a part of the first pencil sharpener hole.

The second limiting structure is a rotary lock catch which ascends and descends along the partition plate, a positioning rod is arranged on the side wall of the rotary lock catch, the rotary lock catch is compressed to descend when the upper cover is covered, and the positioning rod abuts against the pen point shifting block;

the rotary lock catch rotates to ascend when the upper cover is opened, and the positioning rod rotates by an angle to be separated from the pen point shifting block.

The rotary lock catch rotates to ascend, and the positioning rod rotates in the direction far away from the pen-in starting switch.

The bottom of the rotary lock catch is provided with a spring in a sleeved mode, the top of the spring abuts against the bottom of the rotary lock catch, and the bottom of the spring abuts against the bottom surface of the blind hole of the partition plate; the bottom of rotatory hasp is equipped with spiral strip more than two, and the bottom of every spiral strip is equipped with drive arc surface and first locating surface, stretching out of the blind hole of baffle forms first bush, the lateral wall top of first bush is equipped with the breach that quantity and spiral strip correspond, and every breach is equipped with slope spigot surface and second locating surface, rotatory hasp drives the arc surface and descends until first locating surface and second locating surface along slope spigot surface spiral when descending, rotatory hasp rises through spring action and resets.

And the inner bottom surface of the upper cover is provided with an ejector rod, and the upper cover is covered and is abutted against the rotary lock catch.

A protective cover is further arranged on the top surface of the partition plate, a third pencil sharpener hole is formed in the protective cover, and the third pencil sharpener hole is aligned with the first pencil sharpener hole and the second pencil sharpener hole; the bottom of safety cover is equipped with the second bush with first bush coaxial line, the lateral wall top of second bush is equipped with the structure the same with first bush and matches with the top of rotatory hasp.

After adopting the structure, the invention has the following advantages: the structure is that a rotary lock catch is arranged at the upper part of the pencil sharpener, and two slope guide surfaces are respectively arranged at two ends of the rotary lock catch; when the upper cover of the pencil sharpener is opened, the spring in the partition board enables the rotary lock catch to bounce upwards, the rotary lock catch rotates along the slope guide surface on the upper portion of the rotary lock catch, the pen point pulling block is locked by the buckling position of the rotary lock catch, the pencil entering starting switch is also locked, and the pencil cannot be inserted into the hole of the pencil sharpener at the moment; when the upper cover is covered, the ejector rod in the upper cover abuts against the rotary lock catch, the rotary lock catch rotates along the slope guide surface at the lower part, at the moment, the buckling part of the rotary lock catch is separated from the pen point pulling block, and the pencil sharpener can work. The structure adopts a mechanical structure to automatically realize the on and off of the power switch when the upper cover is opened or closed, and has good reliability, good durability and low cost.

As the improvement, first limit structure is protruding for establishing the arc at the top edge in the first machine hole of cutting of baffle, the nib shifting block offsets and shelters from partly first machine hole of cutting with the bellied lateral wall of arc at the off-the-shelf state, and the protruding adoption of arc and baffle integrated into one piece of convenient processing, good reliability.

As an improvement, the second limiting structure is a rotary lock catch which ascends and descends along the partition plate, a positioning rod is arranged on the side wall of the rotary lock catch, the rotary lock catch is compressed to descend when the upper cover is covered, and the positioning rod abuts against the pen point shifting block; the rotary lock catch rotates to ascend when the upper cover is opened, the positioning rod rotates by an angle to be separated from the pen point shifting block, the rotating angle of the positioning rod can be guaranteed, and therefore limiting is achieved.

As an improvement, the rotary lock catch rotates to ascend, the positioning rod rotates in the direction away from the pen entering starting switch, and the position is made to be out, so that the pen point shifting block has a swinging space.

As an improvement, a spring is sleeved at the bottom of the rotary lock catch, the top of the spring is abutted against the bottom of the rotary lock catch, and the bottom of the spring is abutted against the bottom surface of the blind hole of the partition plate; the bottom of rotatory hasp is equipped with spiral strip more than two, and the bottom of every spiral strip is equipped with drive arc surface and first locating surface, stretching out of the blind hole of baffle forms first bush, the lateral wall top of first bush is equipped with the breach that quantity and spiral strip correspond, and every breach is equipped with slope spigot surface and second locating surface, rotatory hasp drive arc surface descends until first locating surface and second locating surface along slope spigot surface spiral when descending, rotatory hasp rises through spring action and resets, and the drive structure is reliable, and enables the locating lever and can swing.

As the improvement, the inner bottom surface of the upper cover is provided with the ejector rod, the upper cover is in a covering state and is abutted against the rotary lock catch, and the driving switch when the upper cover is opened or closed is simple in structure and more direct in driving.

As an improvement, a protective cover is further arranged on the top surface of the partition plate, a third pencil sharpener hole is formed in the protective cover, and the third pencil sharpener hole is aligned with the first pencil sharpener hole and the second pencil sharpener hole; the bottom of safety cover is equipped with the second bush with first bush coaxial line, the lateral wall top of second bush is equipped with the structure the same with first bush and matches with the top of rotatory hasp when rising. When the rotary lock catch ascends, the second lining of the protective cover plays a role in guiding, so that the rotary lock catch spirally ascends more smoothly.

Drawings

Fig. 1 is an exploded view of the safety lock structure of the electric pencil sharpener of the present invention.

Fig. 2 is an internal schematic view of the closed state of the safety lock structure of the electric pencil sharpener of the present invention.

Fig. 3 is an internal schematic view of the opened state of the safety lock structure of the electric pencil sharpener of the present invention.

FIG. 4 is a schematic view of the connection between the rotary lock and the partition board according to the present invention.

Fig. 5 is an exploded view of the rotating shackle and bulkhead of the present invention.

Fig. 6 is a schematic view of the rotary latch of the present invention.

Fig. 7 is an exploded view of the safety lock structure of the electric pencil sharpener according to another view angle.

Shown in the figure:

1. the shell, 2, the upper cover, 2.1, the second cuts a machine hole, 2.2, the ejector pin, 3, the baffle, 3.1, first machine hole of cutting, 3.2, the arc is protruding, 3.3, the spliced pole, 3.4, first bush, 3.5, the breach, 3.5.1, the slope spigot surface, 3.5.2, the second locating surface, 4, the nib shifting block, 5, go into a start switch, 6, rotatory hasp, 6.1, the locating lever, 6.2, the spiral strip, 6.2.1, the drive arc surface, 6.2.2, first locating surface, 7, the spring, 8, the safety cover, 8.1, the third cuts a machine hole, 8.2, the second bush.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in fig. 1-3, the safety lock structure of the electric pencil sharpener of the present invention comprises a housing 1, an upper cover 2 and a partition plate 3, wherein the upper cover 2 is arranged on the top of the housing 1, the partition plate 3 is arranged in the housing 1, the partition plate 3 is provided with a first sharpener hole 3.1 for inserting a pencil, and the upper cover 2 is also provided with a second sharpener hole 2.1 aligned with the first sharpener hole 3.1.

The top surface of baffle 3 is equipped with first limit structure and second limit structure, be equipped with nib shifting block 4 on the baffle 3, go into a starting switch 5 and rotatory hasp 6, the spliced pole 3.3 of connection at baffle 3 top is rotated to the one end of nib shifting block 4, the other end of nib shifting block 4 is located the protruding 3.2 of arc of first limit structure and goes into between a starting switch 5, nib shifting block 4 is located between first limit structure and the second limit structure at the stop work state, and partly is located the first machine hole of cutting 3.1 top, nib shifting block 4 offsets and keeps away from the first machine hole of cutting 3.1 top with the plectrum of going into a starting switch 5 at operating condition.

First limit structure is for establishing the protruding 3.2 of arc at the first top edge of sharpening machine hole 3.1 of baffle 3, and the protruding 3.2 semicircular in shape of arc of this embodiment, and the inner wall of the protruding 3.2 of arc aligns with the first inner wall of sharpening machine hole 3.1, nib shifting block 4 offsets and shelters from a part first sharpening machine hole 3.1 with the protruding 3.2's of arc lateral wall at the off-the-shelf condition, and when both offset, two sides of the protruding 3.2 of arc all offset with the side of nib shifting block 4, and nib shifting block 4 sheltered from a part first sharpening machine hole 3.1 this moment, made the cross section of first sharpening machine hole 3.1 reduce to make the pencil can't insert in sharpening machine hole.

As shown in fig. 4-6, the second limiting structure is a rotary lock catch 6 that ascends and descends along the partition plate 3, a positioning rod 6.1 is arranged on the side wall of the rotary lock catch 6, the rotary lock catch 6 is compressed to descend when the upper cover 2 is covered, and the positioning rod 6.1 abuts against the pen point shifting block 4;

the rotary lock catch 6 rotates to rise when the upper cover 2 is opened, and the positioning rod 6.1 rotates by an angle to be separated from the pen point shifting block 4.

The rotary lock catch 6 rotates to rise, and the positioning rod 6.1 rotates away from the pen-in starting switch 5.

The bottom of the rotary lock catch 6 is provided with a spring 7 in a sleeved mode, the top of the spring 7 abuts against the bottom of the rotary lock catch 6, and the bottom of the spring abuts against the bottom surface of the blind hole of the partition plate 3; when the rotary lock catch 6 is compressed and spirally rotates downwards, the spring 7 is compressed; the upper cover is opened, and the rotary lock catch 6 is screwed upwards under the action of the spring 7.

The bottom of rotatory hasp 6 is equipped with two or more helical strips 6.2 to realize the symmetry, make drive power reach evenly, this embodiment is three, and the bottom of every helical strip 6.2 is equipped with drive arc surface 6.2.1 and first locating surface 6.2.2.

The blind hole of baffle 3 stretches out and forms first bush 3.4, the lateral wall top of first bush 3.4 is equipped with quantity and the breach 3.5 that the spiral strip 6.2 corresponds, and every breach 3.6 is equipped with slope guiding surface 3.5.1 and second locating surface 3.5.2.

The rotary lock catch 6 drives the arc surface 6.2.1 to spirally descend along the slope guide surface 3.5.1 when descending until the first positioning surface 6.2.2 is propped against the second positioning surface 3.5.2, and the rotary lock catch 6 is lifted and reset under the action of the spring 7.

The inner bottom surface of the upper cover 2 is provided with a mandril 2.2, and the upper cover 2 is in a covering state and is propped against the rotary lock catch 6.

As shown in fig. 7, the top surface of the partition plate 3 is further provided with a protective cover 8, the protective cover 8 seals the pen point shifting block 4, the pen entering starting switch 5 and the rotary lock catch 6 on the partition plate 3, and the ejector rod 2.2 penetrates through a through hole in the protective cover 8 to abut against the rotary lock catch 6.

The protective cover 8 is provided with a third pencil sharpener hole 8.1, and the third pencil sharpener hole 8.1 is aligned with the first pencil sharpener hole 3.1 and the second pencil sharpener hole 2.1.

The bottom of safety cover 8 is equipped with second bush 8.2 with first bush 3.4 coaxial line, the lateral wall top of second bush 8.2 is equipped with the structure the same with first bush 3.4 and matches with the top of rotatory hasp 6 when rising. Namely, the top surface and the bottom surface of the spiral strip 6.2 of the rotary lock catch 6 are both provided with a driving arc surface and a first positioning surface, and the bottom surface of the second lining 8.2 is also provided with a slope guiding surface and a second positioning surface, so that the rotary lock catch 6 plays a role in guiding when spirally rising.

When the upper cover 2 of the pencil sharpener is opened, the inner spring 7 of the partition plate 3 enables the rotary lock catch 6 to be upwards bounced, the rotary lock catch 6 rotates along the slope guide surface at the upper part of the rotary lock catch 6, the pen point pulling block 4 is locked by the buckling part of the rotary lock catch 6 at the moment, the pencil entering starting switch is also locked, and the pencil cannot be inserted into the hole of the pencil sharpener at the moment; when the upper cover 2 is covered, the ejector rod 2.2 in the upper cover 2 props against the rotary lock catch 6, the rotary lock catch 6 rotates along the slope guide surface at the lower part, the buckling part of the rotary lock catch 6 is separated from the pen point pull block 4 at the moment, and the pencil sharpener can work.