CN107175957B

CN107175957B - Environment-friendly automatic compensation type propelling pencil

Info

Publication number: CN107175957B
Application number: CN201710375094.4A
Authority: CN
Inventors: 胡志新
Original assignee: Wu Qiuyue
Current assignee: Wu Qiuyue
Priority date: 2017-05-24
Filing date: 2017-05-24
Publication date: 2020-04-17
Anticipated expiration: 2037-05-24
Also published as: CN107175957A

Abstract

The invention relates to the technical field of stationery, in particular to an environment-friendly automatic compensation type propelling pencil, which comprises a pencil head, a pencil tube and a pencil cap, wherein the pencil cap is fixedly connected to one end of the pencil tube, the pencil head is fixedly connected to the other end of the pencil tube, the pencil head comprises a pencil head shell, a core protection tube, a lead discharging spring, a backspacing damping device and a strong spring which are sequentially arranged in the pencil head shell, a core hole of the core protection tube for a lead to pass through is arranged in the middle of the core protection tube, the lead is tightly matched with the core hole of the core protection tube, a damping lead hole for the lead to pass through is arranged at the axis of the backspacing damping device, the backspacing damping device is used for preventing the lead from backspacing, after one end of the lead discharging spring is abutted against the core protection tube, the lead discharging length can be accurately adjusted by slightly pressing the tip of the core protection tube according to different purposes, and the acting force between the, the back-off damping device locks the lead core, so that the lead core can not back off and is always kept level with the core protection tube.

Description

Environment-friendly automatic compensation type propelling pencil

Technical Field

The invention relates to the technical field of stationery, in particular to an environment-friendly automatic compensation type propelling pencil.

Background

The pencil is an important writing tool for students in schools, especially for pupils in lower grades at present, has the advantages of low price, convenient correction and the like, and has wide application in writing, drawing and painting. The pencil used by students at present mainly comprises a fixed core pencil with a shell made of wood and a propelling pencil with a movable pencil core. The fixed core pencil is simple in structure and low in unit price, but the shell of the fixed core pencil is mainly wooden, the pencil core and the shell cannot move, when the pencil needs to be taken out after being used for a period of time, the wood layer on the periphery of the core needs to be cut off, a large amount of time needs to be consumed for cutting the pencil, waste materials such as lead powder and wood dust can be generated, a large amount of wood resources are consumed, and the environment is not protected.

At present, the mechanical pencil is widely applied to work and study life, and is more convenient and more environment-friendly than a fixed core pencil. The propelling pencil on the market at present mainly has the following defects: the pencil is inconvenient to use, the core-ejecting mode of a general propelling pencil is one section, the fineness degree of the core ejection is not high, and the exposed length of the lead is required to be adjusted if the core-ejecting length is too long; when the writing is finished, the lead cannot be automatically compensated, and when the external refill is consumed quickly, the lead can be drawn out by pressing the pen cap up and down or rotating the pen cap; the lead is easy to break, and the lead can be written only by exposing the core protection tube; the core is inconvenient to be added, and the students in the lower grades are difficult to master the core adding requirement; the common propelling pencil is not provided with an eraser, and once the writing is wrong, the common propelling pencil cannot be modified in time; the common propelling pencil is made of common plastic and metal components, is difficult to degrade and is easy to pollute the environment.

Therefore, if an environmentally friendly automatic compensation type mechanical pencil with push-type lead-out function could be developed, the development of mechanical pencil would be a new leap.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention aims to: the environment-friendly automatic compensation type propelling pencil can automatically compensate the lead by depending on the acting force during writing, is not easy to break the lead, is convenient to add the lead and is easy to master.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an environment-friendly automatic compensation formula propelling pencil, including nib, pen holder and cap, the cap rigid coupling is in the one end of pen holder, the nib rigid coupling is in the other end of pen holder, the nib includes the nib shell, set gradually inside the core protecting tube of nib shell, go out the core spring, back damping device and powerful spring, be equipped with the core protecting tube lead hole that supplies the lead to pass in the middle of the core protecting tube, the lead closely cooperates with core protecting tube lead hole, the axle center department that backs back damping device is equipped with the damping lead hole that supplies the lead to pass, it is used for preventing that the lead backs to roll back damping device, the one end butt of going out the core spring is in core protecting tube, the other end butt of going out the core spring is in backing back damping device, the one end butt of powerful spring is in backing back damping device, the other end of powerful spring is fixed for the nib. After the structure is adopted, the core discharging length can be accurately adjusted and determined by slightly pressing the tip end of the core protecting tube according to different purposes, the core protecting tube compresses the core discharging spring by the acting force between the tip end of the core protecting tube and the paper surface during writing, the lead core is locked by the retraction damping device and cannot be retracted, and the lead core is always kept flush with the core protecting tube; when the tip of the core protection tube leaves the paper surface, the lead core of the core protection tube is taken out of the retraction damping device by the core protection tube under the action of the resilience force of the core outlet spring, and the strong spring always provides a supporting force for the retraction damping device.

The damping device that rolls back includes the sleeve pipe, set up the clamping piece in the sleeve pipe, cup joint cyclic annular top plate and damping spring outside the clamping piece, the clamping piece is two, two clamping pieces are to closing the damping lead core hole that forms the confession lead core and pass, cyclic annular top plate is close to a core spring setting, be equipped with the ball between cyclic annular top plate and the clamping piece, the ball is two, cyclic annular top plate is by a core spring to damping spring's direction bodiness gradually, the clamping piece is equipped with protrudingly, damping spring's one end butt in the one end of cyclic annular top plate, damping spring's other one end butt in the protrusion of. After adopting this kind of structure, when the lead core moved to the direction of protecting the core pipe, the lead core drove clamping piece and ball and moved to the thinner department of cyclic annular top plate by the thick part of cyclic annular top plate, and damping spring is compressed, then damping lead core hole grow, and the lead core freely passes damping lead core hole, and when the lead core rolled back, the lead core drove clamping piece and ball and moved to the thicker department of cyclic annular top plate by the thinner department of cyclic annular top plate, and damping lead core hole diminishes to lock the lead core, the lead core can not roll back, and it is fixed to have gone out lead core length.

The clamping piece is provided with a ball groove, and the ball is positioned in the ball groove. The ball can not move at will and is not easy to fall out between the clamping piece and the annular top piece.

The pen point is provided with a top cover at one end of the strong spring, the top cover is detachably connected to the pen point shell, the strong spring abuts against the top cover, and a top cover lead core hole for a lead core to penetrate through is formed in the axis of the top cover. Is convenient for assembly and disassembly.

The pen point shell is provided with an L-shaped bayonet, the top cover is provided with a clamping protrusion, the clamping protrusion is matched with the L-shaped bayonet and fixedly connected with the top cover, and the powerful spring is compressed. The assembly is further convenient, and the top cover only needs to be pressed into the pen point shell and rotated to clamp the clamping protrusion into the L-shaped bayonet.

The core protection tube extends out of the core protection tube extension part towards the core discharge spring, the core discharge spring is sleeved on the core protection tube extension part, the core protection tube is provided with an annular clamping bulge, and one end of the core discharge spring abuts against the annular clamping bulge. The lead core protection device is convenient to assemble, stable in structure, convenient for lead core to be inserted into the lead core protection pipe and capable of protecting the lead core from being broken easily.

The pencil tube comprises a pencil tube shell, a lead tube is arranged in the pencil tube, and a lead storage compartment for a pencil lead to pass through is arranged at the axis of the lead tube. The lead core can be conveniently inserted, and the lead core is not easy to break.

The core inlet end of the core guide pipe is provided with a conical core guide groove, the bottom of the core guide groove is provided with a core placing hole, the core placing hole is communicated with the core storage compartment, the core outlet end of the core guide pipe is provided with a conical core outlet, and the core guide groove, the core outlet and the core guide pipe are of an integrated structure. When the lead core is inserted, the lead core is inserted into the core placing hole along the lead core guide groove, enters the core storage compartment and then penetrates out of the core outlet nozzle.

The pen cap comprises a pen cap body, and the pen cap body is provided with a core pushing rod extending towards the interior of the pen tube. The lead core is pressed into the deep part of the core storage compartment and inserted into the core protection tube.

The pen cap body is provided with an eraser which is made of thermoplastic rubber material. It is convenient to correct the writing of the pencil when writing wrongly.

In summary, the present invention has the following advantages:

1. the environment protecting automatic compensating propelling pencil has no need of manual pressing or rotation, and can automatically compensate the lead core based on the wear of the lead core during writing and write continuously.

2. The core-out degree is higher, the core-out length is proper, and the core-out length can not be too long or too short.

3. When the core is replaced, the lead core is easy to put in, the lead core can be put in place by lightly pressing the core protection tube for several times, the core is convenient to add, and the lead core is easy to master by students in lower grades.

4. The pencil lead is not easy to break, and is firm and durable, and one pencil lead is equivalent to ten traditional pencils.

5. The eraser is provided, so that the handwriting can be conveniently corrected, and the use is convenient.

6. The lead cores have consistent thickness and are smooth to write.

Drawings

FIG. 1 is a schematic cross-sectional view of a pencil point of the environmentally friendly automatic compensation type mechanical pencil of the present invention.

FIG. 2 is an exploded view of the cap and the cap of the environmental protection type automatic compensation propelling pencil of the present invention.

Wherein, fig. 1 and fig. 2 include:

10-pen head, 11-pen head shell, 111-L-shaped bayonet, 12-core-protecting tube, 121-core-protecting tube lead core hole, 122-core-protecting tube extension part, 123-annular clamping protrusion, 13-core-out spring, 14-retraction damping device, 141-damping lead core hole, 142-sleeve, 143-clamping piece, 144-annular top plate, 145-damping spring, 146-ball, 147-protrusion, 15-strong spring, 16-top cover, 161-top cover lead core hole, 162-clamping protrusion;

50-lead core;

FIG. 3 is a schematic cross-sectional view illustrating a barrel of the environmentally friendly automatic compensation type mechanical pencil according to the present invention.

Wherein fig. 3 includes:

20-pen tube, 21-pen tube shell, 22-guide tube, 221-core storage compartment, 222-guide groove, 223-core outlet;

FIG. 4 is a schematic diagram of a partial cross-sectional structure of a cap of an environmentally friendly automatic compensation type mechanical pencil according to the present invention.

Wherein fig. 4 includes:

30-pen cap, 31-pen cap body, 32-core pushing rod, 33-eraser.

Detailed Description

The present invention will be described in further detail below.

As shown in fig. 1 to 4, an environment-friendly automatic compensation type propelling pencil comprises a pencil head 10, a pencil tube 20 and a pencil cap 30, wherein the pencil cap 30 is fixedly connected to one end of the pencil tube 20, the pencil head 10 is fixedly connected to the other end of the pencil tube 20, the pencil head 10 comprises a pencil head housing 11 and a core protection tube 12 sequentially arranged inside the pencil head housing 11, the pencil lead drawing device comprises a lead drawing spring 13, a backspacing damping device 14 and a strong spring 15, wherein a lead core protecting tube lead core hole 121 for a lead core 50 to pass through is arranged in the middle of a lead protecting tube 12, the lead core 50 is tightly matched with the lead core protecting tube lead core hole 121, a damping lead core hole 141 for the lead core 50 to pass through is arranged at the axis of the backspacing damping device 14, the backspacing damping device 14 is used for preventing the lead core 50 from backspacing, one end of the lead drawing spring 13 is abutted against the lead protecting tube 12, the other end of the lead drawing spring 13 is abutted against the backspacing damping device 14, one end of the strong spring 15 is abutted against the backspacing damping device 14, and the other end of the strong spring 15 is fixed relative to. The core protection tube 12 extends out of the core protection tube extension part 122 towards the core discharge spring 13, the core discharge spring 13 is sleeved on the core protection tube extension part 122, the core protection tube 12 is provided with an annular clamping protrusion 123, and one end of the core discharge spring 13 abuts against the annular clamping protrusion 123. The lead core protection device is convenient to assemble, has a stable structure, is convenient for the lead core 50 to be inserted into the core protection tube 12, and protects the lead core 50 from being broken easily. After the structure is adopted, the core discharging length can be accurately adjusted and determined by slightly pressing the tip of the core protecting tube 12 according to different purposes, the core protecting tube 12 is compressed by the core discharging spring 13 under the action force between the tip of the core protecting tube 12 and the paper surface during writing, the lead core 50 is locked by the retraction damping device 14, the lead core 50 cannot retract, and the lead core 50 is always kept flush with the core protecting tube 12; when the tip of the core-protecting tube 12 leaves the paper surface, the lead core 50 is carried out of the retraction damper 14 by the core-protecting tube 12 under the resilience of the core-removing spring 13, and the strong spring 15 always provides a supporting force for the retraction damper 14.

As shown in fig. 1, the retraction damping device 14 includes a sleeve 142, two clamping pieces 143 disposed in the sleeve 142, an annular top plate 144 sleeved outside the clamping pieces 143, and a damping spring 145, where the clamping pieces 143 are two pieces, the two clamping pieces 143 are abutted to form a damping lead core hole 141 for a lead core 50 to pass through, the annular top plate 144 is disposed near the core-out spring 13, balls 146 are disposed between the annular top plate 144 and the clamping pieces 143, the number of the balls 146 is two, the annular top plate 144 is gradually thickened from the core-out spring 13 to the direction of the damping spring 145, the clamping pieces 143 are provided with protrusions 147, one end of the damping spring 145 abuts against one end of the annular top plate 144, the other end of the damping spring 145 abuts against the protruding clamping piece 143 of the clamping piece 143 and is provided with a ball groove. The balls 146 cannot move freely and are not easy to fall out between the clamping piece 143 and the annular top piece. And (3) starting. With the structure, when the lead core 50 moves towards the direction of the core protection tube 12, the lead core 50 drives the clip 143 and the ball 146 to move from the thicker part of the annular top plate 144 to the thinner part of the annular top plate 144, the damping spring 145 is compressed, the damping lead core hole 141 is enlarged, the lead core 50 freely passes through the damping lead core hole 141, when the lead core 50 retracts, the lead core 50 drives the clip 143 and the ball 146 to move from the thinner part of the annular top plate 144 to the thicker part of the annular top plate 144, the damping lead core hole 141 is reduced, the lead core 50 is locked, the lead core 50 cannot retract, and the length of the lead core 50 is fixed.

As shown in fig. 1 and 2, a cap 16 is disposed at one end of the pen point 10 having the strong spring 15, the cap 16 is detachably connected to the pen point housing 11, the strong spring 15 abuts against the cap 16, and a cap lead hole 161 for passing the lead 50 is disposed at the axial center of the cap 16. Is convenient for assembly and disassembly. The pen point shell 11 is provided with an L-shaped bayonet 111, the top cover 16 is provided with a clamping protrusion 162, the clamping protrusion 162 is matched with the L-shaped bayonet 111 to be fixedly connected with the top cover 16, and the strong spring 15 is compressed. The assembly is further facilitated by pressing the cap 16 into the nib housing 11 and rotating the protrusion 162 into the L-shaped notch 111.

As shown in fig. 3, the pen barrel 20 includes a pen barrel casing 21, a lead tube 22 is disposed in the pen barrel casing 21, and a lead storage compartment 221 for the lead 50 to pass through is disposed at the axial center of the lead tube 22. Facilitating insertion of the lead 50 and ensuring that the lead 50 is not easily broken. The core inlet end of the core guide tube 22 is provided with a conical core guide groove 222, the bottom of the core guide groove 222 is provided with a core placing hole, the core placing hole is communicated with the core storage compartment 221, the core outlet end of the core guide tube 22 is provided with a conical core outlet 223, and the core guide groove 222, the core outlet 223 and the core guide tube 22 are of an integrated structure. When the lead core 50 is inserted, the lead core 50 is inserted into the core releasing hole along the core guiding groove 222, enters the core storing compartment, and then passes out of the core outlet 223. The pen holder is made of acrylonitrile-butadiene-styrene (ABS) materials, and the materials are more environment-friendly. The pencil core is prepared by synthesizing resin and graphite, is healthy and nontoxic, and is not easy to break; the thickness of the pen core is consistent, and writing is smooth.

As shown in fig. 4, the cap 30 includes a cap body 31, and the cap body 31 is provided with a core pushing rod 32 extending toward the interior of the barrel 20. The lead core 50 is pressed into the deep portion of the core storage compartment and inserted into the core protection tube 12. The pen cap body 31 is provided with an eraser 33, and the eraser 33 is made of thermoplastic rubber material and is an eraser 33. It is convenient to correct the writing of the pencil when writing wrongly.

In summary, the present invention has the following advantages:

1. an environment-friendly automatic compensation type propelling pencil is provided, which can automatically compensate a lead core 50 according to the abrasion condition of the lead core 50 during writing without manually extruding or rotating the lead core.

3. When the core is replaced, the lead core 50 is easy to put in, the lead core 50 can be put in place by lightly pressing the core protection tube 12 for several times, the core is convenient to add, and the lead core is easy to master by students in lower grades. The specific core replacing steps are as follows: the pencil cap 30 is pulled open, the pencil lead 50 is put in, the pencil lead 50 is pressed in by the core pushing rod 32 on the pencil cap 30, the pencil cap 30 is covered, and the pencil cap can be written after the pencil cap is pressed down by light press, so that the using time of consumers is saved, and the possibility that students in lower grades are difficult to master the core adding requirement is reduced.

4. The pencil lead 50 is not easy to break, and is firm and durable, and one pencil lead 50 is equivalent to ten traditional pencils.

5. The eraser 33 is provided, so that the handwriting can be conveniently corrected, and the use is convenient.

6. The pencil lead 50 has the same thickness and smooth writing.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. The utility model provides an environment-friendly automatic compensation formula propelling pencil which characterized in that: the pencil head comprises a pencil head shell, a core protection tube, a pencil lead discharging spring, a backspacing damping device and a strong spring, wherein the core protection tube, the core discharging spring, the backspacing damping device and the strong spring are sequentially arranged in the pencil head shell; the backspacing damping device comprises a sleeve, clamping pieces arranged in the sleeve, an annular top plate and a damping spring, wherein the annular top plate and the damping spring are sleeved outside the clamping pieces, the clamping pieces are two, the two clamping pieces are oppositely combined to form a damping lead core hole for a lead core to pass through, the annular top plate is arranged close to the core outlet spring, a ball is arranged between the annular top plate and the clamping pieces, the annular top plate is gradually thickened from the core outlet spring to the direction of the damping spring, the clamping pieces are provided with protrusions, one end of the damping spring is abutted against one end of the annular top plate, and the other end of the damping; the clamping piece is provided with a ball groove, and the balls are positioned in the ball groove;

determining the core discharging length by pressing the tip of the core protecting pipe; when writing, the acting force between the tip of the core protection tube and the paper surface enables the core protection tube to compress the core discharging spring, and the back-off damping device locks the lead core; when the lead is replaced, the lead can be placed in place by pressing the core protection tube for a plurality of times after the lead is placed in.

2. The environmentally friendly self-compensating propelling pencil of claim 1, wherein: the number of the balls is two.

3. The environmentally friendly self-compensating propelling pencil of claim 1, wherein: the pen point is provided with a top cover at one end of the strong spring, the top cover is detachably connected to the pen point shell, the strong spring abuts against the top cover, and a top cover lead core hole for a lead core to penetrate through is formed in the axis of the top cover.

4. The environmentally friendly self-compensating propelling pencil of claim 3, wherein: the pen point shell is provided with an L-shaped bayonet, the top cover is provided with a clamping protrusion, the clamping protrusion is matched with the L-shaped bayonet and fixedly connected with the top cover, and the powerful spring is compressed.

5. The environmentally friendly self-compensating propelling pencil of claim 1, wherein: the core protection tube extends out of the core protection tube extension part towards the core discharge spring, the core discharge spring is sleeved on the core protection tube extension part, the core protection tube is provided with an annular clamping bulge, and one end of the core discharge spring abuts against the annular clamping bulge.

6. The environmentally friendly self-compensating propelling pencil of claim 1, wherein: the pencil tube comprises a pencil tube shell, a lead tube is arranged in the pencil tube, and a lead storage compartment for a pencil lead to pass through is arranged at the axis of the lead tube.

7. The environmentally friendly self-compensating propelling pencil of claim 6, wherein: the core inlet end of the core guide pipe is provided with a conical core guide groove, the bottom of the core guide groove is provided with a core placing hole, the core placing hole is communicated with the core storage compartment, the core outlet end of the core guide pipe is provided with a conical core outlet, and the core guide groove, the core outlet and the core guide pipe are of an integrated structure.

8. The environmentally friendly self-compensating propelling pencil of claim 1, wherein: the pen cap comprises a pen cap body, and the pen cap body is provided with a core pushing rod extending towards the interior of the pen tube.

9. The environmentally friendly self-compensating propelling pencil of claim 8, wherein: the pen cap body is provided with an eraser which is made of thermoplastic rubber material.