CN210851775U

CN210851775U - Propelling pencil

Info

Publication number: CN210851775U
Application number: CN201921334988.XU
Authority: CN
Inventors: 王辉; 杨秀华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-06-26
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a propelling pencil aims at providing a strong adaptability's propelling pencil. The pen comprises a pen holder, a pen point arranged at one end of the pen holder, a pen cap arranged at the other end of the pen holder, a core storage tube arranged in the pen holder and provided with a clamping head at one end, a movable core fixing claw arranged in the pen point, a spring arranged on the clamping head and used for resetting the core storage tube, rubber arranged in the clamping head, a metal ferrule arranged outside the clamping head and an auxiliary guide rail arranged in the pen point; the pen point is characterized in that an annular lock hoop which can rotate relative to the pen point and is provided with an internal thread on the inner wall is arranged on the outer wall of the pen point, a through groove is arranged on the pen point and corresponds to the upper part of the movable core fixing claw, a thread section which penetrates through the through groove and is matched with the internal thread on the annular lock hoop is arranged on the upper part of the movable core fixing claw, and the auxiliary guide rail is used for limiting the moving track of the movable core fixing claw; the movable core fixing claw can be completely retracted into the pen point; the pen point is provided with an upper limit opening of the limit movable core fixing claw.

Description

Propelling pencil

Technical Field

The utility model belongs to the technical field of the writing instrument technique and specifically relates to a strong adaptability's propelling pencil.

Background

The traditional pencil is characterized in that a pencil lead is wrapped by a wooden material pencil holder, and when the pencil is used, the pencil lead needs to be shaved until the pencil lead is exposed, so that the pencil can be written. The pencil is inconvenient to use and wastes wood to a certain extent.

The existing propelling pencil can automatically lead out after being pressed, and the popularization and the mass use of the propelling pencil provide convenience for people to write. At present, two types of mechanical pencils are used more, and the thickness of the pencil lead is 0.5mm and 0.7 mm. When the pencil core is used up, the pencil core needs to be replaced, but the situation that the pencil core is bought by mistake, such as the situation that the specification of the propelling pencil core is 0.5mm and the pencil core with the size of 0.7mm is bought, can not be normally used by a user, can often occur.

Disclosure of Invention

The utility model aims to overcome the defects existing in the prior art, and provides a mechanical pencil which has strong applicability and can meet the requirements of lead cores with different diameters.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a propelling pencil comprises a penholder, a pencil head arranged at one end of the penholder, a pencil cap arranged at the other end of the penholder, a core storage tube arranged in the penholder and provided with a clamping head at one end, a movable core fixing claw arranged in the pencil head, a spring arranged on the clamping head and used for resetting the core storage tube, rubber arranged in the clamping head, a metal ferrule arranged outside the clamping head and an auxiliary guide rail arranged in the pencil head; the pen point is characterized in that an annular lock hoop which can rotate relative to the pen point and is provided with an internal thread on the inner wall is arranged on the outer wall of the pen point, a through groove is arranged on the pen point and corresponds to the upper part of the movable core fixing claw, a thread section which penetrates through the through groove and is matched with the internal thread on the annular lock hoop is arranged on the upper part of the movable core fixing claw, and the auxiliary guide rail is used for limiting the moving track of the movable core fixing claw; the movable core fixing claw can be completely retracted into the pen point; the pen point is provided with an upper limit opening of the limit movable core fixing claw.

Preferably, the auxiliary guide rail arranged in the pen point can be bonded with the pen point in various modes during production and manufacturing, such as die sinking, blow molding and the like. So that the movable core fixing claw and the auxiliary guide rail can be attached to each other and slide slowly.

Or the trace movement of the movable core fixing claw is limited, and the movable core fixing claw cannot be accidentally separated from the pen point during use.

Preferably, the movable core fixing claw can completely withdraw the pen point by means of adjustment of the annular lock hoop and fitting and limiting of the auxiliary guide rail.

Preferably, two symmetrical butt joint bayonets are arranged in the annular lock hoop, so that the annular lock hoop is convenient to produce, install and use.

Preferably, the annular lock hoop is arranged at the position of the pen head, so that the annular lock hoop is convenient to install and use.

Preferably, each movable core fixing claw has an external thread section.

Preferably, each movable core fixing claw is provided with a corresponding number of through grooves, and the external thread section of each movable core fixing claw can move in a meshing manner with the internal thread arranged on the annular lock hoop.

Or, the corresponding number of through grooves arranged on the pen point can not block the meshing movement of the internal and external threads.

In addition, more preferably, the annular lock hoop can abut against the pen point, so that internal threads arranged inside the annular lock hoop can closely engage with external thread sections on the movable core fixing claw placed inside the pen point through the through grooves, the length of the external thread sections on the movable core fixing claw and the matching degree of the threads between the external thread sections can meet the requirement for adjusting use, when the movable core fixing claw is in a completely withdrawing, using and closing state, the annular lock hoop cannot rotate due to the insufficient thread sections, the engagement of the threads can prevent the movable core fixing claw from falling off, and the annular lock hoop has a damping feeling when rotated, so that slow movement of the movable core fixing claw is facilitated during rotation adjustment, and convenience is brought to a user.

In this case, the movable core fixing claw can move directionally to change the aperture size, so that when different lead cores are used, the lead core with the diameter can be wrapped by the adjusting ring-shaped lock hoop.

Alternatively, the change in the aperture of the movable core-fixing claw can be adapted to the diameter of the lead core used, and the lead core is wrapped and not easily broken, and in this case, a good wrapping property is achieved.

Preferably, the mechanical pencil as described above further includes rubber provided in the chuck so that the lead can be inserted into the lead storage tube through the chuck when the cap is pressed.

Further, it is preferable that a rubber having a resilience capable of gripping the two types of lead cores having different diameters when the chuck is closed is provided in the chuck.

Or, the rubber arranged in the chuck is soft and elastic, is a reversible deformation material, and can wrap the diameter of the lead core when the chuck is closed and the resilience performance of the chuck can be contacted with the surface of the lead core after the lead core with any diameter is placed in the chuck, so that the lead core can be normally pressed out, and the chuck has good adaptability and resilience, and can prevent accidental core release.

In this case, the covered lead does not accidentally come off, and a good covering property is achieved.

Preferably, in the mechanical pencil, the lead with the diameter is wrapped twice during use, and the following requirements are met: the rubber at the chuck is used for wrapping the lead core with the diameter, the change of the aperture of the movable core fixing claw is suitable for the lead core with the diameter, and the rubber and the movable core fixing claw have combined action, so that the use of the lead core with the diameter is met, the protection of the lead core is realized, and the key for guaranteeing the writing smoothness is realized.

Preferably, in the mechanical pencil, the number of the movable core fixing claws arranged in the pencil head may be two, three or four, and the mechanical pencil has a corresponding number of the auxiliary guide rails and the upper limit opening; the number of rubber arranged in the chuck can be 2, 3 or 4 pieces

Compared with the prior art, the utility model has the advantages of as follows:

the utility model discloses pass through screw-thread fit by the solid core claw of the activity of placing in the nib and the outer annular lock hoop of nib and use, when annular lock hoop was rotatory, the solid core claw of activity can upwards or the certain distance of lapse that moves down and change the aperture size by corresponding the screw thread, when the solid core claw motion of activity, supplementary guide rail can with the solid core claw laminating of activity, have the guide effect, go up the mouth and can prevent the solid core claw of activity from excessively removing, and then, the special treatment of dop department can adapt to above-mentioned diameter lead core, thereby reach the purpose of using different grade type pencil core. The utility model relates to an ingenious is the improvement to current propelling pencil, has better result of use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of the pen tip and the clip;

FIG. 3 is a schematic view of the pen tip;

FIG. 4 is a schematic perspective view of the movable core-fixing claw when closed;

FIG. 5 is a schematic perspective view of one of the auxiliary guide rails and the corresponding movable core-fixing claw;

FIG. 6 is a schematic perspective view of the annular locking band;

FIG. 7 is a schematic view of the configuration of the extended state of the rubber in the cartridge;

FIG. 8 is a schematic view of the configuration of the cap in a compressed state;

in the figure: the pen comprises a movable core fixing claw 1, a pen point 2, an annular locking hoop 3, an internal thread 4, a clamping head 5, rubber 6, a spring 7, a metal ferrule 8, a pen holder 9, a pen core storage tube 10, a pen clip 11, a pen cap 12, an auxiliary guide rail 13, a thread section 14, a through groove 15, an upper limit opening 16 and a butt bayonet 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.

The mechanical pencil shown in fig. 1-8 comprises a penholder 9, a pencil head 2 arranged at one end of the penholder 9, a pencil cap 12 arranged at the other end of the penholder 9, a core storage tube 10 arranged in the penholder 9 and provided with a clamping head 5 at one end, a movable core fixing claw 1 arranged in the pencil head 2, a spring 7 arranged on the clamping head 5 and used for resetting the core storage tube 10, rubber 6 arranged in the clamping head 5, a metal ferrule 8 arranged outside the clamping head 5, and an auxiliary guide rail 13 arranged in the pencil head; an annular lock hoop 3 which can rotate relative to the pen point 2 and is provided with an internal thread 4 on the inner wall is arranged on the outer wall of the pen point 2, a through groove 15 is arranged on the pen point 2 and at the position corresponding to the upper part of the movable core fixing claw 1, a thread section 14 which penetrates through the through groove 15 and is matched with the internal thread on the annular lock hoop 3 is arranged on the upper part of the movable core fixing claw 1, and the auxiliary guide rail 13 is used for limiting the movable track of the movable core fixing claw 1; the movable core fixing claw 1 can be completely retracted into the pen point; the pen point 2 is provided with an upper limit opening 16 of the limit movable core fixing claw 1.

The number of the movable core fixing claws 1 arranged in the propelling pencil head 2 can be two, three or four, and the propelling pencil head has a corresponding number of auxiliary guide rails 13 and upper limit openings 16. In this embodiment, the movable core fixing claw 1 has three petals, which are respectively marked as 1a, 1b and 1c, and correspondingly, the thread segments 14 are respectively marked as 14a, 14b and 14 c;

the movable core fixing claw 1 is matched with the annular lock hoop 3 outside the pen point 2 through threads, when the annular lock hoop 3 rotates, the thread section 14 of the movable core fixing claw 1 and the internal thread 4 of the annular lock hoop 3 move in a meshed mode, so that the movable core fixing claw 1 can move upwards or downwards for a certain distance by means of movement of the thread section 14 to change the aperture size, the movable core fixing claw 1 can be completely retracted, and the threads which are enough and matched are arranged to meet the requirements of adjusting and using.

The lead core clamping structure is characterized in that rubber 6 is arranged in the clamping head 5 and used for wrapping a lead core when the clamping head 5 is closed, the lead core with the common diameter can be clamped by the characteristics of the lead core, and the rubber 6 is adhered to the inner part of the clamping head 5. The number of said rubber 6 may be 2, 3 or 4 pieces. The rubber 6 in this example is two-lobed, respectively designated 6a, 6 b.

The auxiliary guide rail 13 and the pen point 2 are abutted to each other to regulate the moving track of the movable core fixing claw 1. The pen point 2 is provided with through grooves 15 corresponding to the number of the movable core fixing claws 1. Each movable core-fixing claw 1 has a corresponding number of auxiliary guide rails 13. The number of the auxiliary guide rails 13 in this embodiment is three, and the auxiliary guide rails are respectively marked as 13a, 13b and 13 c;

two symmetrical butt joint bayonets 17 are arranged in the annular lock hoop 3, so that the annular lock hoop is convenient to adjust in the production process and when the annular lock hoop is installed on a pen point.

It also comprises a pen clip 11 arranged on the pen holder 7, which is convenient for carrying.

Annular lock hoop 3 uses with the cooperation of the solid core claw of activity 1, screw thread between the two can closely coincide, it is sufficient, the screw thread of looks adaptation can satisfy the needs of adjusting the use, it feels to have the damping during rotation, and the solid core claw of activity 1 can not drop by accident, when rotating annular lock hoop 3, internal thread 4 is anastomosed with the solid threaded section 14 on the core claw of activity 1 through leading to groove 15, the solid core claw of activity 1 can upwards or the certain distance of lapse, make the solid core claw of activity 1 open or the condensation, the aperture changes, the solid core claw of activity 1 can be withdrawed completely. The auxiliary guide rail 13 is fixed in the pen point 2 and can closely attach to the movable core fixing claw 1 for movement, and the rubber 6 is arranged in the chuck 5 and used for wrapping the pen core. When the movable lead fixing claw 1 is completely closed, a pencil lead with the diameter of 0.5mm can be placed in the hole; when the movable core fixing claw 1 is completely retracted, the upper limit opening 16 can limit the position; when in use, the annular lock hoop 3 needs to be adjusted to drive the movable core fixing claw 1 to move directionally: when a pencil lead with the thickness of 0.5mm is placed, the cap 12 is pressed down, the clamping head 5 is opened, the pencil lead can be placed in, and the pencil lead is pushed to the pen head 2 by the clamping head 5 for use; when a pencil lead with the thickness of 0.7mm is placed, the annular lock hoop 3 is rotated, the movable lead fixing claw 1 moves upwards to open the pencil lead to be placed in, and then the pencil lead is pushed to the pencil head 2 by the chuck 5 for use; when different pencil leads are placed in the lead storage tube 10, the pencil cap 12 is pressed down, the pencil leads fall down, the chuck 5 is clamped, the annular locking hoop 3 is adjusted, and different types of pencil leads can be used.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A propelling pencil comprises a penholder (9), a pencil head (2) arranged at one end of the penholder (9), a pencil cap (12) arranged at the other end of the penholder (9), a core storage tube (10) with a clamping head (5) arranged at one end in the penholder (9), a movable core fixing claw (1) arranged in the pencil head (2), a spring (7) arranged on the clamping head (5) and used for resetting the core storage tube (10), rubber (6) arranged in the clamping head (5), a metal ferrule (8) arranged outside the clamping head (5) and an auxiliary guide rail (13) arranged in the pencil head; the method is characterized in that: the pen point is characterized in that an annular lock hoop (3) which can rotate relative to the pen point (2) and is provided with an internal thread (4) on the inner wall is arranged on the outer wall of the pen point (2), a through groove (15) is arranged on the pen point (2) and corresponds to the upper part of the movable core fixing claw (1), a thread section (14) which penetrates through the through groove (15) and is matched with the internal thread on the annular lock hoop (3) is arranged on the upper part of the movable core fixing claw (1), and an auxiliary guide rail (13) is used for limiting the movable track of the movable core fixing claw (1); the movable core fixing claw (1) can be completely retracted into the pen point; the pen point (2) is provided with an upper limit opening (16) of the limiting movable core fixing claw (1).

2. The mechanical pencil of claim 1, wherein: two symmetrical butt joint bayonets (17) are arranged in the annular lock hoop (3).

3. The mechanical pencil according to claim 1 or 2, wherein: the number of the movable core fixing claws (1) arranged in the propelling pencil head (2) can be two, three or four, and the propelling pencil head is provided with a corresponding number of auxiliary guide rails (13) and upper limit openings (16).

4. The mechanical pencil according to claim 1 or 2, wherein: the movable core fixing claw (1) is matched with the annular lock hoop (3) outside the pen point (2) through threads, when the annular lock hoop (3) rotates, the thread section (14) of the movable core fixing claw (1) and the internal thread (4) of the annular lock hoop (3) move in a meshing mode, so that the movable core fixing claw (1) can move upwards or downwards for a certain distance by means of the movement of the thread section (14) to change the size of the aperture, and the movable core fixing claw (1) can be completely retracted.

5. The mechanical pencil according to claim 1 or 2, wherein: set up rubber (6) in dop (5), when dop (5) are closed, be used for the parcel lead core, inside rubber (6) gluing in dop (5).

6. The mechanical pencil of claim 5, wherein: the number of the rubber (6) is 2, 3 or 4.

7. The mechanical pencil according to claim 1 or 2, wherein: the pen head (2) is provided with through grooves (15) the number of which corresponds to that of the movable core fixing claws (1).