CN214001122U

CN214001122U - Automatic pencil capable of preventing core breaking

Info

Publication number: CN214001122U
Application number: CN202023127107.2U
Authority: CN
Inventors: 黄小喜
Original assignee: TRUECOLOR STATIONERY CO Ltd
Current assignee: TRUECOLOR STATIONERY CO Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-20
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a prevent mechanical pencil of disconnected core, including the shaft, shaft one side is equipped with the pen clip, shaft one side is equipped with the pen and holds, the outside cover of holding is equipped with the slipmat, the shaft inboard is equipped with stores up the core pipe, store up core pipe one end and install the rubber seat, rubber seat outside cover is equipped with the block, the inside recess that is equipped with of rubber seat, install the rubber in the recess, shaft one side is equipped with first connecting pipe, first connecting pipe inboard is equipped with first core protecting pipe, first core protecting pipe medial extremity is equipped with the second connecting pipe, second connecting pipe outside cover is equipped with second core protecting pipe, second core protecting pipe inboard inlays and is equipped with the limiting tube, the third core protecting pipe is installed in the limiting tube outside, third core protecting pipe inboard is equipped with the sponge, second core protecting pipe outside cover is equipped with fourth core protecting pipe, fourth core protecting pipe one side is equipped with the slip pipe. This kind of prevent mechanical pencil of disconnected core through the cooperation of first spring with the third spring, alleviates vertical pressure and slant pressure that the lead received, has higher practicality, is convenient for extensively use widely.

Description

Automatic pencil capable of preventing core breaking

Technical Field

The utility model relates to a propelling pencil technical field specifically is a prevent propelling pencil of disconnected core.

Background

The first mechanical pencil in the world was invented in the uk in 1822. In 1915, the inventor invented a mechanical pencil by Zachuan Dynasty. Initially, this new writing instrument was not approved in japan, and the demand in japan was not rapidly increasing until the export orders are exploded and beyond foreign approval. The early Chuan company has also been expanded by the sale of mechanical pencils.

Mechanical pencils, which were introduced into japan campuses at the end of the 1970 s and produced in large quantities by sharp corporation of japan, were used by inserting a fine lead (commonly called a lead) made of graphite into the mechanical pencils, and closing a cover on the rear surface of the mechanical pencils after the lead was inserted to prevent the lead from falling out. The mechanical pencil is internally provided with a spring, and the pencil core can extend out from the fixed length of the front end by pressing the rear cover, and characters with the same thickness can be written.

The wooden pencil needs to be frequently curled to keep writing smooth, and the appearance of the mechanical pencil is just in line with the requirement of people on convenient use. The mechanical pencil, as the name suggests, does not need to be rolled and cut, can automatically or semi-automatically lead out, but because the lead core is too thin, the lead core can be broken when the student uses too much force during writing, and the writing thought is influenced. Therefore, the automatic pencil is improved, and the automatic pencil capable of preventing the lead from being broken is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a core-breaking-proof propelling pencil, which comprises a pencil body, wherein one side of the pencil body is provided with a pencil clip, a pen holder is arranged on one side of the pen body, an anti-slip pad is sleeved on the outer side of the pen holder, a core storage tube is arranged on the inner side of the pen body, a rubber seat is arranged at one end of the core storage tube, a cover cap is sleeved on the outer side of the rubber seat, a groove is arranged in the rubber seat, an eraser is arranged in the groove, a first connecting pipe is arranged on one side of the pen body, a first core protecting pipe is arranged on the inner side of the first connecting pipe, a second connecting pipe is arranged at the inner side end of the first core protection pipe, a second core protection pipe is sleeved outside the second connecting pipe, a limiting pipe is embedded in the inner side of the second core protecting pipe, a third core protecting pipe is arranged on the outer side of the limiting pipe, the sponge is arranged on the inner side of the third core protection pipe, a fourth core protection pipe is sleeved on the outer side of the second core protection pipe, and a sliding pipe is arranged on one side of the fourth core protection pipe.

As a preferred technical scheme of the utility model, one end is held to the pen is equipped with the opening, sliding tube one side is equipped with the slope, opening part sliding connection is held with the pen to the slope.

As a preferred technical scheme of the utility model, the slipmat outside is equipped with a plurality of holes, the slipmat outside is equipped with the non-slip groove.

As a preferred technical scheme of the utility model, the first connecting pipe outside all is equipped with the screw thread with the pen holds the inboard, first connecting pipe is held through thread engagement with the pen.

As a preferred technical scheme of the utility model, first connecting pipe one end is equipped with the fluting, first spring is installed to the fluting inboard, second core protection pipe outside cover is equipped with solid fixed ring, gu fixed ring one side is equipped with first arch, first spring one end and first protruding fixed connection.

As a preferred technical scheme of the utility model, it is protruding that solid fixed ring opposite side is equipped with the second, the protruding one side of second is equipped with the damping ring, the damping ring is the rubber material, the inboard is equipped with first fixed block is held to the pen.

As an optimal technical scheme of the utility model, the restriction outside of tubes all is equipped with the screw thread with the third protects the core pipe inboard, restriction and third protect the core pipe and pass through thread engagement.

As a preferred technical scheme of the utility model, the pen is held the inboard and is equipped with the second fixed block, fourth core protecting pipe one side is equipped with the third arch, protruding one side fixed mounting of third has the third spring, third spring one end and second fixed block fixed connection.

As a preferred technical scheme of the utility model, the restriction intraductal side is equipped with three claw lamella, three claw lamella inboards are equipped with anti-skidding texture, it is protruding that first core tube one end is equipped with the fourth, the protruding one side of fourth is equipped with the second spring, second spring one end and first protruding fixed connection.

The utility model has the advantages that:

1. according to the automatic pencil with the anti-broken lead, one side of the sliding tube is provided with the slope, and when the lead is subjected to oblique pressure through the slope of the sliding tube, the sliding tube automatically slides out to prevent the lead from being broken; a third spring is fixedly arranged on one side of the third bulge, and after the oblique pressure of the third spring is finished, the sliding tube is contracted to the original position through the third spring, so that the writing is continued, and the practicability of the product is improved;

2. according to the automatic pencil with the anti-broken lead, the open groove is formed in one end of the first connecting pipe, and the first spring is mounted on the inner side of the open groove, so that when the lead is subjected to vertical pressure, the first spring can absorb the pressure of a pencil point to enable the lead to retract, and the lead is prevented from being broken; the shock absorption ring is arranged on one side of the second protrusion, and the second core protection pipe is prevented from being damaged due to the shock when the shock absorption ring effectively reduces vertical stress.

3. According to the automatic pencil with the anti-broken core, the three-claw petals are arranged on the inner side of the limiting tube, anti-skidding textures are arranged on the inner sides of the three-claw petals, and the core is prevented from being broken inside through the core grabbing structure of the three-claw petals; the outer side of the non-slip mat is provided with a plurality of holes, the outer side of the non-slip mat is provided with a non-slip groove, and the holes and the non-slip groove can prevent slipping and sweat, so that the writing feeling is increased.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of the automatic pencil of the present invention;

FIG. 2 is a perspective view of the core protecting tube of the automatic pencil of the present invention;

FIG. 3 is a perspective view of a limiting tube of the anti-lead-breakage mechanical pencil of the present invention;

FIG. 4 is a perspective view of the sliding tube of the mechanical pencil of the present invention;

fig. 5 is a sectional view of the mechanical pencil of the present invention.

In the figure: 1. a pen body; 2. a pen clip; 3. a pen holder; 4. a non-slip mat; 5. a core storage tube; 6. a rubber base; 7. capping; 8. an eraser; 9. a first connecting pipe; 10. a first core protection pipe; 11. a fourth protrusion; 12. a second connecting pipe; 13. a fixing ring; 14. a first protrusion; 15. a second protrusion; 16. a shock-absorbing ring; 17. a second core protection pipe; 18. a third core protection pipe; 19. a sponge; 20. a first fixed block; 21. a first spring; 22. a second spring; 23. a limiting tube; 24. three-jaw clacks; 25. a fourth core protection pipe; 26. a third protrusion; 27. a sliding tube; 28. a second fixed block; 29. and a third spring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-5, the utility model relates to a core-breaking-proof mechanical pencil, which comprises a pencil body 1, a pencil holder 2 is arranged on one side of the pencil body 1, a pencil holder 3 is arranged on one side of the pencil body 1, an anti-slip pad 4 is sleeved on the outer side of the pencil holder 3, a core tube 5 is arranged on the inner side of the pencil body 1, a rubber base 6 is arranged on one end of the core tube 5, a cap 7 is sleeved on the outer side of the rubber base 6, a groove is arranged inside the rubber base 6, a rubber 8 is arranged in the groove, a first connecting tube 9 is arranged on one side of the pencil body 1, a first core-protecting tube 10 is arranged on the inner side of the first core-protecting tube 10, a second connecting tube 12 is sleeved on the outer side of the second connecting tube 12, a limiting tube 23 is embedded on the inner side of the second core-protecting tube 17, a third core-protecting tube 18 is arranged on the outer side of the limiting tube 23, a sponge 19 is arranged on the inner side of the third core-protecting tube 18, a fourth core-protecting tube 25 is sleeved on the outer side of the second core-protecting tube 17, one side of the fourth core-protecting pipe 25 is provided with a sliding pipe 27.

Wherein, 3 one end is equipped with the opening for pen holder, and sliding tube 27 one side is equipped with the slope, and slope and 3 opening part sliding connection are held to the pen, and when making the pencil core receive oblique pressure through the slope of sliding tube 27, sliding tube 27 automatic roll-off prevents the pencil core fracture.

Wherein, the outside of slipmat 4 is equipped with a plurality of holes, and the outside of slipmat 4 is equipped with the antiskid groove, but through hole and antiskid groove antiskid sweat-proof, increases to write and holds the sense.

Wherein, the first connecting pipe 9 outside all is equipped with the screw thread with 3 inboards are held to the pen, and first connecting pipe 9 holds 3 with the pen and passes through the thread engagement, realizes that the pen is held detachably, makes things convenient for inside dismouting.

Wherein, first connecting pipe 9 one end is equipped with the fluting, and first spring 21 is installed to the fluting inboard, and the second protects core pipe 17 outside cover to be equipped with solid fixed ring 13, and gu fixed ring 13 one side is equipped with first arch 14, first spring 21 one end and first protruding 14 fixed connection, realize when the lead receives vertical pressure, first spring 21 can absorb nib pressure, makes the lead retract, prevents the lead fracture.

Wherein, solid fixed ring 13 opposite side is equipped with the second arch 15, and second arch 15 one side is equipped with damping ring 16, and damping ring 16 is the rubber material, and 3 inboards are equipped with first fixed block 20 to the pen holder, through damping ring 16, the vibrations that second core protection pipe 17 received when effectively reducing perpendicular atress avoid the lead core fracture.

Wherein, the outside of limiting pipe 23 all is equipped with the screw thread with third protects the inboard of core pipe 18, and limiting pipe 23 passes through threaded engagement with third protects core pipe 18, realizes that third protects core pipe 18 can dismantle, increases the product practicality.

Wherein, the pen is held 3 the inboard and is equipped with second fixed block 28, and fourth core protecting pipe 25 one side is equipped with third arch 26, and third arch 26 one side fixed mounting has third spring 29, and third spring 29 one end and second fixed block 28 fixed connection make its slant pressure after, slide tube 27 shrink back to the normal position through third spring 29 to continue writing, increase the product practicality.

Wherein, the limiting tube 23 inboard is equipped with three claw lamella 24, and three claw lamella 24 inboard is equipped with anti-skidding texture, and first core guard pipe 10 one end is equipped with fourth arch 11, and fourth arch 11 one side is equipped with second spring 22, and second spring 22 one end and first arch 14 fixed connection through the structure of grabbing the core of three claw lamella 24 to prevent inside disconnected core.

The working principle is as follows: when the pencil lead is used, the cap 7 is pulled out, the eraser 8 is pulled out again, a lead core is placed in the lead storage tube 5, the eraser 8 and the cap 7 are replaced, the lead core is pulled out by pressing the cap 7, the internal broken core is prevented through the core grabbing structure of the three-jaw 24, when vertical pressure is applied, one end of the first connecting tube 9 is provided with a slot, the inner side of the slot is provided with a first spring 21, the outer side of the second core protection tube 17 is sleeved with a fixing ring 13, one side of the fixing ring 13 is provided with a first bulge 14, one end of the first spring 21 is fixedly connected with the first bulge 14, the first spring 21 absorbs the pressure of a pencil point to enable the lead core to retract and prevent the lead core from being broken, when the vertical pressure is finished, the tension of the first spring 21 enables the lead core to return to the initial position, when oblique pressure is applied, one end of the pencil holder 3 is provided with an opening, one side of the sliding tube 27 is provided with a slope, so that the sliding tube 27 automatically slides out, the lead core is prevented from being broken, after oblique pressure is finished, a second fixing block 28 is arranged on the inner side of the pen holder 3, a third protrusion 26 is arranged on one side of the fourth core protecting tube 25, a third spring 29 is fixedly mounted on one side of the third protrusion 26, one end of the third spring 29 is fixedly connected with the second fixing block 28, the sliding tube 27 is contracted to the original position, and writing is continued.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The automatic pencil capable of preventing the lead from being broken comprises a pencil body (1) and is characterized in that a pencil clamp (2) is arranged on one side of the pencil body (1), a pencil holder (3) is arranged on one side of the pencil body (1), an anti-slip pad (4) is sleeved on the outer side of the pencil holder (3), a lead storage tube (5) is arranged on the inner side of the pencil body (1), an eraser base (6) is installed at one end of the lead storage tube (5), a cover cap (7) is sleeved on the outer side of the eraser base (6), a groove is formed in the eraser base (6), an eraser (8) is installed in the groove, a first connecting tube (9) is arranged on one side of the pencil body (1), a first lead protecting tube (10) is arranged on the inner side of the first connecting tube (9), a second connecting tube (12) is arranged at the inner side end of the first lead protecting tube (10), a second lead protecting tube (17) is sleeved on the outer side of the second connecting tube (12), the second protects core pipe (17) inboard to inlay and is equipped with restriction pipe (23), restriction pipe (23) are installed in the outside and are protected core pipe (18) to the third, the third protects core pipe (18) inboard to be equipped with sponge (19), the second protects core pipe (17) outside cover to be equipped with fourth and protects core pipe (25), fourth protects core pipe (25) one side and is equipped with sliding tube (27).

2. The mechanical pencil with the function of preventing the lead from being broken as claimed in claim 1, wherein an opening is arranged at one end of the pencil holder (3), a slope is arranged at one side of the sliding tube (27), and the slope is connected with the opening of the pencil holder (3) in a sliding mode.

3. The mechanical pencil with the function of preventing the lead from being broken according to claim 1, wherein a plurality of holes are formed on the outer side of the anti-slip pad (4), and anti-slip grooves are formed on the outer side of the anti-slip pad (4).

4. The mechanical pencil of claim 1, wherein the first connecting tube (9) is threaded on the outside and the holder (3) is threaded on the inside, and the first connecting tube (9) is threadedly engaged with the holder (3).

5. The mechanical pencil with the function of preventing the lead from being broken according to claim 1, wherein one end of the first connecting pipe (9) is provided with a slot, a first spring (21) is installed on the inner side of the slot, a fixing ring (13) is sleeved on the outer side of the second core protecting pipe (17), a first protrusion (14) is arranged on one side of the fixing ring (13), and one end of the first spring (21) is fixedly connected with the first protrusion (14).

6. The mechanical pencil with the function of preventing the lead from being broken according to claim 5, wherein a second protrusion (15) is arranged on the other side of the fixing ring (13), a damping ring (16) is arranged on one side of the second protrusion (15), the damping ring (16) is made of rubber, and a first fixing block (20) is arranged on the inner side of the pencil holder (3).

7. The mechanical pencil of claim 1, wherein the outer side of the limiting tube (23) and the inner side of the third core-protecting tube (18) are both provided with threads, and the limiting tube (23) is engaged with the third core-protecting tube (18) through the threads.

8. The mechanical pencil with the function of preventing the lead from being broken according to claim 1, wherein a second fixing block (28) is arranged on the inner side of the pencil holder (3), a third bulge (26) is arranged on one side of the fourth core protecting tube (25), a third spring (29) is fixedly installed on one side of the third bulge (26), and one end of the third spring (29) is fixedly connected with the second fixing block (28).

9. The mechanical pencil with the function of preventing the broken core as claimed in claim 5, wherein the limiting tube (23) is provided with three claws (24) on the inner side, the three claws (24) are provided with anti-slip textures on the inner side, one end of the first core protecting tube (10) is provided with a fourth bulge (11), one side of the fourth bulge (11) is provided with a second spring (22), and one end of the second spring (22) is fixedly connected with the first bulge (14).