CN108909300B

CN108909300B - Linkage switch assembly of pencil sharpener and pencil sharpener

Info

Publication number: CN108909300B
Application number: CN201810939187.XA
Authority: CN
Inventors: 金响标
Original assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Current assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Priority date: 2018-08-17
Filing date: 2018-08-17
Publication date: 2023-06-16
Anticipated expiration: 2038-08-17
Also published as: CN108909300A

Abstract

The invention discloses a linkage switch assembly of a pencil sharpener and the pencil sharpener, wherein the pencil sharpener comprises a linkage switch assembly, the linkage switch assembly comprises a curved rod for controlling an adsorption chassis to adsorb or release an operation plane, a bulge part on the curved rod and a lock pin capable of locking or unlocking a chip collecting box and a pencil sharpener shell; in the first state, the crank rod controls the adsorption chassis to be adsorbed on the operation plane, the protruding part on the crank rod leaves the lock pin, and the lock pin is retracted to prop against the crank rod so as to release the locking of the pencil sharpener shell and the chip collecting box; in the second state, the crank rotates a certain angle to enable the adsorption chassis to be loosened on the operation plane, and the protruding part on the crank props against the lock pin so as to lock the pencil sharpener shell and the chip collecting box with each other; the linkage switch component can simultaneously execute the switch action of the adsorption chassis and the chip collecting box; so that the pencil sharpener can facilitate specific pencil sharpening operations.

Description

Linkage switch assembly of pencil sharpener and pencil sharpener

Technical Field

The invention relates to a pencil sharpener, in particular to a linkage switch of the pencil sharpener and the pencil sharpener.

Background

The pencil sharpener is a cultural and special tool for students to use daily. The pencil sharpener includes a casing, a pencil sharpening mechanism, a rocking handle, etc. and a drawing chip collecting box is set in the lower part of the casing for collecting the chips produced during pencil sharpening. In order to prevent the chip-collecting cartridge from falling out, damping or magnetic components are often provided to enhance the reliability of the connection between the chip-collecting cartridge and the housing, the chip-collecting cartridge being separated from the housing only when the user intentionally pulls it.

In addition, when the pencil sharpener is used, the pencil sharpener is usually placed on a table top, the pencil sharpener is held by a hand to position the pencil sharpener, and the other hand is used for rotating a rocking handle, so that the pencil sharpener has certain difficulty in operation for pupil of the young age. Therefore, one or more suckers are added at the bottom of the shell of the pencil sharpener, so that the pencil sharpener can be fixedly adsorbed on an operation plane, and the operation difficulty of the pencil sharpener can be simplified. The base device of the manual pencil sharpener with the Chinese authority bulletin number of CN201380698Y is provided with a driving device which enables the base to be adsorbed or loosened, and has the advantages that the base is required to be adsorbed on a tabletop, a pressing plate is pulled up through a bent rod as long as a handle is rotated, a vacuum area is generated between a rubber film and a tabletop and other planes, so that the base is firmly adsorbed on the tabletop and other planes, and when the base is required to be separated from the tabletop and other planes, the pressing plate is downwards pressed down through the bent rod as long as the handle is reversely rotated, so that the vacuum area of the rubber film and the tabletop is eliminated.

In the two sets of the structures of the pencil sharpener, each independently arranged and operated, a plurality of improvements exist; those skilled in the art develop a new structure to meet the needs of the market.

Disclosure of Invention

The invention aims to solve the technical problem that a linkage switch assembly is arranged between an adsorption assembly and a chip collecting box of a pencil sharpener, and the linkage switch can simultaneously execute the switch action of the adsorption assembly and the chip collecting box; so that the pencil sharpener is more convenient for specific pencil sharpening operation. Specifically, when the pencil sharpener is adsorbed on the operation platform through the adsorption component, the chip collecting box is unlocked and can be used for dumping chips; when the pencil sharpener is not adsorbed, the chip collecting box is locked and cannot be used for pouring chips. Further provides a pencil sharpener with the linkage switch assembly.

The technical scheme adopted for solving the technical problems is as follows: the linkage switch assembly of the pencil sharpener is characterized by comprising a curved lever for controlling the adsorption chassis to adsorb or release an operation plane, a bulge part on the curved lever and a lock pin for locking or unlocking the chip collecting box and the pencil sharpener shell; in the first state, the crank rod controls the adsorption chassis to be adsorbed on the operation plane, the protruding part on the crank rod leaves the lock pin, and the lock pin is retracted to prop against the crank rod so as to release the locking of the pencil sharpener shell and the chip collecting box; in the second state, the crank rotates a certain angle to enable the adsorption chassis to be loosened on the operation plane, and the protruding portion on the crank props against the lock pin to lock the pencil sharpener shell and the chip collecting box with each other.

The invention further adopts the technical scheme that: the protruding part is formed by penetrating and fixing a pin with a disc on the curved rod.

The invention further adopts the technical scheme that: the adsorption chassis is positioned below the pencil sharpener shell, and the chip collecting box is drawer-type arranged at the bottom of the pencil sharpener shell.

The invention further adopts the technical scheme that: the suction base plate is provided with a suction cup cover, and a cavity for accommodating the curved rod is formed by the suction base plate and the suction cup cover.

The invention further adopts the technical scheme that: the locking pin comprises a wide head end, the spring is sleeved on the locking pin and is propped between the wide head end and the upper plate of the sucker cover, and the locking pin penetrates through the upper plate of the sucker cover.

The invention further adopts the technical scheme that: the lock pin penetrates through the pencil sharpener shell and can penetrate into or withdraw from the concave hole on the chip collecting box.

The invention further adopts the technical scheme that: the adsorption chassis is made of rubber materials, a pull block capable of pulling up the central area of the adsorption chassis is arranged on the adsorption chassis, the bending section of the bent rod is fixedly connected with the pull block, and the pull block is pulled up or moved down through rotation of the bent rod to achieve pulling up or moving down of the central area of the adsorption chassis.

The invention further adopts the technical scheme that: the pull block comprises a transverse bottom edge and a vertical connecting edge, wherein the transverse bottom edge is placed in a groove in the central area of the adsorption chassis, and the vertical connecting edge is provided with a through hole for the bent section of the bent rod to pass through.

The invention further adopts the technical scheme that: the lower side of the upper plate of the sucker cover is provided with a guide groove for the pull block to move up and down.

Another subject of the invention is: the pencil sharpener comprises the linkage switch assembly.

Compared with the prior art, the invention has the advantages that the linkage switch component of the pencil sharpener is arranged between the adsorption chassis and the chip collecting box and comprises the curved lever for controlling the adsorption chassis to adsorb or release the operation plane, the bulge part on the curved lever and the lock pin for simultaneously locking or unlocking the chip collecting box and the pencil sharpener shell. When the pencil is required to be cut by the pencil sharpener, the crank is rotated to pull the adsorption chassis at a certain angle to form a vacuum area with the operation plane, so that the pencil sharpener is stably adsorbed on the operation plane, a user can rotate the rocker arm on the pencil sharpener to finish pencil sharpening action without holding the pencil sharpener, and pencil sharpening is more convenient and easier for pupil; at this time, the chip collecting box and the pencil sharpener shell are in an unlocking state, and after pencil sharpening is completed, a user can withdraw the chip collecting box to pour out pencil chips.

Reversely rotating the bent rod, and extruding the adsorption chassis by the bent rod, so that the vacuum area is eliminated, and the adsorption chassis is separated from the operation plane; at this time, the chip collecting box is locked on the pencil sharpener shell, and even if the pencil sharpener falls down or accidentally falls down, the chip collecting box can not be separated from the pencil sharpener shell, so that the pencil sharpener is convenient for students to use and carry daily. In addition, the linkage switch component of the pencil sharpener controls the chip collecting box and the adsorption chassis to operate simultaneously, and the structure is simpler, so that the integral structure and the appearance of the pencil sharpener are simpler, the manufacturing process is reduced, and the production cost is reduced.

Drawings

FIG. 1 is a schematic view of the whole structure of a pencil sharpener in a first state;

FIG. 2 is a schematic view showing an internal structure of the pencil sharpener in a first state;

FIG. 3 is a schematic view of the whole structure of the pencil sharpener in the second state;

FIG. 4 is a schematic view showing an internal structure of the pencil sharpener in a second state;

FIG. 5 is a partially exploded view of the pencil sharpener;

FIG. 6 is a top view of the pencil sharpener after the ganged switch assembly is assembled with the suction base plate and suction cup cover;

fig. 7 is a schematic diagram of an assembly structure of a linkage switch assembly and a suction plate cover of the pencil sharpener.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

The pencil sharpener comprises a pencil sharpener main body 1, wherein a pencil sharpening mechanism is arranged at the upper part of the pencil sharpener main body 1, the pencil sharpening mechanism comprises a cutter rest and a rocking handle structure, a hob is inserted on the cutter rest, one end of the cutter rest is connected with the rocking handle structure, and the pencil sharpening mechanism is arranged on the pencil sharpener main body 1 according to the technical means in the prior art; the lower part of the pencil sharpening mechanism is provided with a chip collecting box 5, the bottom of the pencil sharpener is fixed with an adsorption chassis 2, a linkage switch assembly 10 of the pencil sharpener is arranged between the adsorption chassis 2 and the chip collecting box 5, and the linkage switch assembly 10 simultaneously executes the switch actions of the adsorption chassis 2 and the chip collecting box 5.

Specifically, as shown in fig. 1 to 4 and 7, the pencil sharpener body 1 of the present invention includes a linkage switch assembly 10 of the pencil sharpener, the linkage switch assembly 10 of the pencil sharpener includes a curved lever 3 for controlling the suction chassis 2 to suck or release the operation plane, a boss 4 on the curved lever 3, and a lock pin 7 for locking or unlocking the chip collecting box 5 with the pencil sharpener housing 6; in the first state, the crank 3 controls the adsorption chassis 2 to be adsorbed on an operation plane, and the convex part 4 on the crank 3 props against the lock pin 7 so as to lock the pencil sharpener shell 6 and the chip collecting box 5 with each other; in the second state, the crank 3 rotates by a certain angle to enable the adsorption chassis 2 to be loosened on the operation plane, the protruding portion 4 on the crank 3 is separated from the lock pin 7, and the lock pin 7 is retracted to prop against the crank 3 to enable the pencil sharpener housing 6 and the chip collecting box 5 to be unlocked.

As shown in fig. 5, the boss 4 is formed by a pin 42 with a disc 41 penetrating and fixed to the curved lever 3. Specifically, the pin 42 is inserted through the curved rod 3 and fixed by conventional means, and the disc 41 at the outer end of the pin 41 is outwardly convex on the curved rod 3, i.e. forms the boss 4 in the present embodiment. The pin 42 may be fixed to the curved rod 3 by conventional means known in the art, and will not be described in detail.

As shown in fig. 2, 4 and 5, the locking pin 7 comprises a wide end 71, the spring 8 is sleeved on the locking pin 7, the spring 8 is propped between the wide end 71 and the upper plate 211 of the sucker cover 21, the locking pin 7 passes through the upper plate 211 of the sucker cover 21, and an upper plate through hole 9 is formed in the upper plate 211 so that the locking pin 7 can pass up and down. The chip collecting box 5 is provided with a concave hole 51, the lock pin 7 penetrating through the through hole 9 of the upper plate penetrates through the pencil sharpener shell 6 and can penetrate into or withdraw from the concave hole 51 on the chip collecting box 5, so that the lock pin 7 can lock or unlock the chip collecting box 5.

The adsorption chassis 2 is positioned below the pencil sharpener housing 6, and the chip collecting box 5 is arranged at the bottom of the pencil sharpener housing 6 in a drawer type. The chip collecting box 5 is disposed at the bottom of the pencil sharpener housing 6 by conventional means in the art, which is not described in detail.

As shown in fig. 5 and 6, the suction chassis 2 is provided with a suction cup cover 21, and the suction chassis 2 and the suction cup cover 21 form a cavity 22 for accommodating the curved rod 3. The suction chassis 2 is in a rectangular structure, the suction cup cover 21 is in a rectangular frame cover structure with an opening at the bottom, and the opening at the bottom of the suction cup cover 21 is approximately identical to the suction chassis 2 in shape and size; preferably, an annular shallow groove 101 for the bottom of the suction cup cover 21 to fall is formed in the outer peripheral area of the upper surface of the suction base plate 2, so that the suction cup cover 21 can be relatively matched and stably covered on the suction base plate 2. One end of the curved lever 3 extends to the outside of the cavity 22 and passes through the side wall 213 of the suction cup cover 21 to form a handle 32, so that a user can conveniently operate the curved lever 3; the other end of the curved lever 3 passes through a side hole 103 in the other opposite side wall 214 of the suction cup cover 21. I.e., both ends of the curved bar 3 pass through opposite side walls of the suction cup cover 21 so as to be erected on the suction cup cover 21.

The adsorption chassis 2 is made of rubber materials, a pull block 22 capable of pulling up the central area C of the adsorption chassis 2 is arranged on the adsorption chassis 2, the bent section 31 of the bent rod 3 is fixedly connected to the pull block 22, and the pull block 22 is pulled up or moved down by rotation of the bent rod 3 to achieve the pulling up or moving down of the central area C of the adsorption chassis 2.

The pull block 22 includes a lateral bottom edge 221 and a vertical connecting edge 222, and the lateral bottom edge 221 is placed in the groove 23 of the central area C of the adsorption chassis 2, and the pull block 22 is fixed to the adsorption chassis 2 through the groove 23 so as to pull or press the adsorption chassis 2 by the pull block 22. The vertical connecting edge 222 is provided with a through hole 223 for the curved section 31 of the curved lever 3 to pass through. Specifically, the groove 23 is in a "letter" structure, and the transverse bottom 221 of the pull block 22 is snapped into the "letter" groove 23 to be stably connected to the adsorption chassis 2.

The lower side of the upper plate 211 of the sucker cover 21 is provided with a guide groove 212 for the pull block 22 to move up and down, the inner surface of the upper plate 211 of the sucker cover 21 is fixedly connected with two vertical plates 102, and a channel formed between the two vertical plates 102 is the guide groove 212.

As shown in fig. 1 and 2, specifically, in the first state, the curved bar 3 is rotated by a certain angle, the curved section 31 of the curved bar 3 is rotated upward, so that the pull block 22 is lifted, the suction chassis 2 which is originally pressed down is pulled upward, and a vacuum area is formed between the suction chassis 2 and the operation plane, so that the pencil sharpener is firmly locked on the operation plane; when the crank 3 rotates to pull up the adsorption chassis 2, the bulge 4 originally propped against the wide end 71 of the lock pin 7 rotates along with the adsorption chassis, and finally the lock pin 7 is separated, so that the lock pin 7 moves downwards to prop against the crank 3, and the lock of the pencil sharpener shell 6 and the chip collecting box 5 is released. In the first state, the pencil sharpener body 1 is stably adsorbed on the operation plane, a user can rotate the rocker arm on the pencil sharpener to finish pencil sharpening without holding the pencil sharpener body 1, and pencil sharpening is more convenient and easier for pupil; at this time, the chip collecting box 5 and the pencil sharpener housing 6 are in an unlocked state, and the user can withdraw the chip collecting box 5 to pour out the pencil chips.

As shown in fig. 3 and 4, in the second state, the bent lever 3 is rotated in the other direction by a certain angle, so that the bent section 31 is rotated downward, so that the pull block 22 connected to the bent section 31 is forced downward on the adsorption chassis 2, so that the adsorption chassis 2 is pressed downward to eliminate the vacuum area, thereby enabling the pencil sharpener body 1 to be separated from the operation plane; at the same time, the rotating crank 3 drives the bulge 4 to rotate, so that the bulge 4 props up the wide end 71 of the lock pin, thereby locking the pencil sharpener shell 6 and the chip collecting box 5 with each other; that is, when the pencil sharpener does not need to be put on an operation plane for operation, the pencil sharpener shell 6 is locked with the chip collecting box 5, and when the pencil sharpener is put in the schoolbag for walking or jumping during production and transportation, the chip collecting box 5 which is inserted in the bottom position of the pencil sharpener shell 6 in a drawer type manner can be prevented from being separated from the pencil sharpener shell 6 to cause friction loss between the chip collecting box 5 and the pencil sharpener shell 6, and the pencil sharpener body 1 can be made stronger in integrity. In the second state, the adsorption chassis 2 is separated from the operation plane, and the pencil sharpener can be carried about; at this time, the chip collecting box 5 and the pencil sharpener housing 6 are locked, and even if the pencil sharpener main body 1 is fallen down or falls, the chip collecting box 5 cannot be separated from the pencil sharpener housing, so that the pencil sharpener is convenient for students to use and carry daily.

The invention has been described in detail with reference to the linked switch assembly of the pencil sharpener and the pencil sharpener, and specific examples are applied herein to illustrate the principles and embodiments of the invention, and the above examples are only for aiding in understanding the invention and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims

1. The linkage switch assembly of the pencil sharpener is characterized by comprising a curved lever for controlling the adsorption chassis to adsorb or release an operation plane, a bulge part on the curved lever and a lock pin for locking or unlocking the chip collecting box and the pencil sharpener shell; in the first state, the crank rod controls the adsorption chassis to be adsorbed on the operation plane, the protruding part on the crank rod leaves the lock pin, and the lock pin is retracted to prop against the crank rod so as to release the locking of the pencil sharpener shell and the chip collecting box; in the second state, the crank rotates a certain angle to enable the adsorption chassis to be loosened on the operation plane, and the protruding portion on the crank props against the lock pin to lock the pencil sharpener shell and the chip collecting box with each other.

2. The invention of claim 1 wherein said projection is formed by a pin with a disc mounted through a curved bar.

3. The invention of claim 1 wherein said suction chassis is positioned below said pencil sharpener housing and said chip collection box is drawer-mounted to the bottom of said pencil sharpener housing.

4. The invention of claim 1 wherein the suction base plate is provided with a suction cup cover, the suction base plate and suction cup cover forming a cavity for receiving the curved bar.

5. The invention of claim 4 wherein said locking pin includes a wide end, a spring is sleeved on said locking pin and is biased between said wide end and said upper plate of said chuck cover, said locking pin passing through said upper plate of said chuck cover.

6. The invention of claim 1 wherein said locking pin extends through said pencil sharpener housing and is adapted to penetrate into or out of a recess in said chip collection cartridge.

7. The linkage switch assembly of pencil sharpener of claim 4, wherein said suction chassis is made of rubber material, a pull block is provided on said suction chassis for pulling up the central area of said suction chassis, said curved section of said curved lever is fixedly connected to said pull block, and said pull block is pulled up or moved down by rotation of said curved lever to achieve said pulling up or movement of the central area of said suction chassis.

8. The invention of claim 7 wherein the pull block includes a lateral bottom edge and a vertical connecting edge, the lateral bottom edge being disposed in a recess in a central region of the suction base, the vertical connecting edge having a through hole for the curved section of the curved lever to pass through.

9. The linked switch assembly of pencil sharpener of claim 7 wherein said upper plate of said suction cup cover has a guide slot for said pull block to move up and down.

10. A pencil sharpener comprising a ganged switch assembly as claimed in any one of claims 1 to 7.