CN214189050U

CN214189050U - Pencil with telescopic lead

Info

Publication number: CN214189050U
Application number: CN202022403448.1U
Authority: CN
Inventors: 罗德九
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-09-14
Anticipated expiration: 2030-10-26

Abstract

The utility model provides a pencil of telescopic pencil lead, including the cavity pen-holder, be equipped with the pencil lead clamping bar in this cavity pen-holder of its characterized in that, the lower extreme of this pencil lead clamping bar is fixed in the cavity nib, the upper end links to each other with the hood through the cavity handle, is equipped with the vertical shaft hole of placing the pencil lead that link up to lower port in this pencil lead clamping bar to be equipped with vertical logical groove at this pencil lead clamping bar middle part, should vertically lead the inslot and set up the I-shaped piece, the outer wall of I-shaped piece and cavity pen-holder internal face looks spiro union. The upper end of the pencil lead clamping rod penetrates through the hollow handle and the top cap to be fixed into a rotating body which is arranged in the hollow pencil holder and rotates in the hollow pencil holder, the hollow pencil holder does not move, and the I-shaped block on the pencil lead clamping rod is in threaded connection with the hollow pencil holder, so that the I-shaped block moves up and down along the inner wall of the hollow pencil holder while rotating along with the pencil lead clamping rod, and further, the pencil lead clamped in the pencil lead clamping rod is pushed to move downwards to extend out for writing or drilling and move upwards to retract for storage.

Description

Pencil with telescopic lead

Technical Field

The utility model belongs to the technical field of stationery design and manufacturing, concretely relates to pencil of telescopic lead core.

Background

The traditional wooden pencil is characterized in that a pencil lead and a wooden penholder are rotationally cut together through a pencil sharpener, and the wooden penholder is rotationally cut to waste a large amount of wood, so that the protection of forest resources is not facilitated. Therefore, mechanical pencils which do not need wooden penholders, can change lead cores and can automatically move downwards are introduced in the market, but the mechanical pencils not only influence the writing quality because the lead cores are thin and can shake in the writing process, but also easily break the lead cores carelessly, cause waste of a large number of lead cores and influence normal writing and learning of students, so most of the students abandon the mechanical pencils and still use wooden pencils. Therefore, there is a need for improvements in the prior art. Disclosure of Invention

The utility model aims to solve the technical problem that a pencil of telescopic lead core is provided, this pencil can only change and cut the lead core, do not drill wooden pen-holder, and only need change new lead core after the lead core exhausts, still remain wooden pen-holder and continue to use, and wooden pen-holder combines firmly with the lead core simultaneously, can not make the lead core rock and influence and write, more can not break the lead core, can save timber resources.

The utility model discloses realize that the technical scheme that above-mentioned purpose was taken is: a telescopic pencil with lead core is composed of a hollow holder, a lead core clamping rod in said holder, a longitudinal axle hole for holding lead core, a longitudinal through slot in said holder, and a rotary body fixed to said holder and able to rotate in said holder while it is fixed to it and fixed to it, thereby pushing the lead core clamped in the lead core clamping rod to move downwards to extend out for writing or drilling and move upwards to retract for storage.

The upper end of the pencil lead clamping rod is arranged to be a flat end with a first flat surface at the front side and the rear side or at the left side and the right side, a screw hole is formed in the middle of the flat end, the flat end penetrates through a flat opening corresponding to the lower port of the hollow handle and upwards extends into the hollow handle, and the flat end is in threaded connection with a stud at the lower end of the top cap through the screw hole in the middle of the flat end, so that the upper end of the pencil lead clamping rod is fixed at the upper end of the hollow pencil holder.

The upper end of the lead clamping rod is sleeved with a spring so as to press the upper end of the lead clamping rod in the hollow handle through the spring and the top cap.

The middle part of the lead clamping rod is set to be a horizontal section with a second horizontal plane at the front side and the rear side or at the left side and the right side, the middle part of the I-shaped block is arranged in the longitudinal through groove at the middle part of the lead clamping rod, the two ends of the I-shaped block are respectively matched and connected with the horizontal section at the middle part of the lead clamping rod, and the lower end of the I-shaped block is matched and connected with the lead so as to facilitate the I-shaped block to push the lead back to the longitudinal shaft hole of the lead clamping rod from bottom to top when moving upwards along the longitudinal through groove at the middle part of the lead clamping rod, prevent the lead from being broken or be filled with a new lead, and push the lead to extend downwards to write or drill when moving downwards.

The outer wall surface of the I-shaped block is meshed with the inner wall surface of the hollow pen holder through threads which are arranged mutually.

The lower end of the pencil lead clamping rod is provided with a short sleeve, the outer diameter of the short sleeve is smaller than that of the lower end of the pencil lead clamping rod, and the short sleeve is symmetrically provided with at least two opening seams extending downwards to the port and used for holding the pencil lead tightly.

The lower end of the pencil lead clamping rod is fixedly connected with the hollow pencil head so as to conveniently take off an old pencil lead and put in a new pencil lead.

The hollow penholder is a wooden penholder, a metal penholder or a plastic penholder.

The section of the lead is in a shape of a partial circle, and the lower port of the corresponding hollow pen point is in a shape of a partial circle, so that the lead can be conveniently inserted and prevented from rotating.

The utility model has the advantages of it is following and effect: by adopting the technical scheme, the pencil can be conveniently fixed into a rotating body through the connection of the lower end of the pencil lead clamping rod and the hollow pencil point and the connection of the upper end of the pencil lead clamping rod penetrating through the hollow handle and the top cap, and the rotating body is arranged in the hollow pencil holder and rotates in the hollow pencil holder, but the hollow pencil holder does not move, and then the I-shaped block on the pencil lead clamping rod is in threaded connection with the hollow pencil holder, so that the I-shaped block moves up and down along the inner wall of the hollow pencil holder while rotating along with the pencil lead clamping rod, and further the pencil lead clamped in the pencil lead clamping rod is pushed to move downwards to extend out for writing or drilling and move upwards to. The hollow pen holder is fixed and can be used repeatedly, so that the consumption of a large amount of raw materials, particularly wood, can be saved, and meanwhile, the lead is tightly clamped and clasped through the short sleeve at the lower end of the lead clamping rod and the opening seam on the short sleeve, so that the lead is not shaken any more, and the up-and-down movement of the lead is not influenced, thereby not only facilitating the lead to stretch out for writing or drilling, but also facilitating the lead to shrink and collect, and avoiding the lead to be broken.

Drawings

Fig. 1 is a sectional structure view of the present invention.

Fig. 2 is a view a-a of fig. 1.

Fig. 3 is a view B-B of fig. 1.

Fig. 4 is a view C-C of fig. 1.

Fig. 5 is a view from direction D of fig. 1.

In the figure: the pencil lead clamping rod comprises a top cap 1, a handle 2, a hollow pencil holder 3, an I-shaped block 4, a pencil lead clamping rod 5, a hollow pencil head 7, a spring 8, a stud 11 at the lower end of the top cap, a longitudinal through groove 51 in the middle of the pencil lead clamping rod, a jacket 52 at the lower end of the pencil lead clamping rod, an opening seam 53 in the jacket, a screw hole 54 at the upper end of the pencil lead clamping rod, a second straight plane 55 in the middle of the pencil lead clamping rod, and a first straight plane 56 at the upper end of the pencil lead clamping rod.

Detailed Description

Referring to each figure, the utility model provides a pencil of telescopic pencil lead, including cavity pen-holder 3, wherein: a pencil lead clamping rod 5 is arranged in the hollow pencil holder 3, the lower end of the pencil lead clamping rod 5 is fixed in the hollow pencil head 7, the upper end of the pencil lead clamping rod 5 is connected with the top cap 1 through the hollow handle 2, a longitudinal shaft hole which is used for placing a pencil lead a and penetrates through the lower end port is arranged in the pencil lead clamping rod 5, a longitudinal through groove 51 is arranged in the middle of the pencil lead clamping rod 5, an I-shaped block 4 is arranged in the longitudinal through groove 51, and the outer wall surface of the I-shaped block 4 is in threaded connection with the inner wall surface of the hollow pencil holder 3;

the upper end of the lead clamping rod 5 is set to be a flat end with a first flat surface 56 at the front side and the rear side, a screw hole 54 is arranged in the middle of the flat end, the flat end penetrates through a flat opening corresponding to the lower port of the hollow handle 2 and extends upwards into the hollow handle 2, and the flat end is in threaded connection with the stud 11 at the lower end of the top cap 1 through the screw hole 54 in the middle of the flat end, so that the upper end of the lead clamping rod 5 is fixed at the upper end of the hollow pen holder 3; the upper end of the lead clamping rod 3 is sleeved with a spring 8 so as to press the upper end of the lead clamping rod 5 in the hollow handle 2 through the spring 8 and the top cap 1; the middle part of the lead core clamping rod 5 is provided with a horizontal section with a second horizontal plane 55 at the front side and the rear side, the middle part of the I-shaped block 4 is arranged in a longitudinal through groove 51 in the middle part of the lead core clamping rod 5, the two ends of the I-shaped block 4 are respectively matched and connected with the horizontal section in the middle part of the lead core clamping rod 5, and the lower end of the I-shaped block 4 is matched and connected with a lead core a, so that the lead core a can be jacked back into a longitudinal shaft hole of the lead core clamping rod 5 from bottom to top or a new lead core a is filled when the I-shaped block 4 moves upwards along the longitudinal through groove 51 in the middle part of the lead core clamping rod 5, and the lead core a is pushed to extend downwards when the I-shaped block 4 moves downwards; the outer wall surface of the I-shaped block 4 is meshed with the inner wall surface of the hollow penholder 3 through threads arranged mutually; the lower end of the lead clamping rod 3 is provided with a short sleeve 52, the outer diameter of the short sleeve 52 is smaller than that of the lower end of the lead clamping rod 5, and two opening seams 53 extending downwards to a port are symmetrically arranged on the short sleeve 52 and used for tightly holding a lead a; the lower end of the lead core clamping rod 5 is fixedly connected with the hollow pen point 7 so as to be convenient for taking off an old lead core and putting in a new lead core a; the hollow penholder 3 is a wooden penholder, a metal penholder or a plastic penholder; the section of the lead core a is eccentric, and the lower port of the corresponding hollow pen point 7 is eccentric, so that the lead core is prevented from rotating while the lead core is conveniently inserted.

When the pencil is in use, one hand holds the hollow penholder and does not move, the other hand rotates the hollow handle 2 and drives the top cap 1, the pencil lead clamping rod 5, the I-shaped block 4 and the hollow pencil point 8 to rotate together, the I-shaped block 4 drives the pencil lead a to move downwards and extend out, and then the pencil lead can be written or cut, and when the hollow handle 2 is rotated reversely, the pencil lead a is driven to move upwards and retract for storage, so that the pencil lead a is prevented from being broken.

When the pencil lead a is replaced, the hollow pencil head 7 is taken down, the rest pencil lead tail is drawn out from the lower part, a new pencil lead a is inserted into the longitudinal shaft hole of the pencil lead clamping rod 5 from bottom to top, the short sleeve 52 is opened at the same time, the new pencil lead a is tightly held until the upper end of the pencil lead a props against the lower part of the I-shaped block 4, and the hollow pencil head 7 is arranged, so that the replacement of the new pencil lead a is completed.

Claims

1. The utility model provides a pencil of telescopic pencil lead, includes the cavity pen-holder, is equipped with the pencil lead clamping bar in this cavity pen-holder of its characterized in that, and the lower extreme of this pencil lead clamping bar is fixed in the cavity nib, and the upper end links to each other with the hood through the cavity handle, is equipped with the vertical shaft hole of placing the pencil lead that link up to the lower port in this pencil lead clamping bar to be equipped with vertical logical groove in this pencil lead clamping bar middle part, should vertically lead to inslot and set up the I-shaped piece, the outer wall of I-shaped piece and cavity pen-holder internal face looks spiro union.

2. The retractable pencil of claim 1, wherein the upper end of the pencil lead clamping rod is a flat end having a first flat surface on the front and rear sides or the left and right sides, and a screw hole is formed in the middle of the flat end, and the flat end extends upward into the hollow handle through a flat opening corresponding to the lower end opening of the hollow handle and is screwed with the stud at the lower end of the top cap through the screw hole in the middle of the flat end.

3. The retractable lead pencil of claim 1 wherein said lead holder shaft is provided with a spring disposed thereon.

4. The retractable pencil of claim 1, wherein the middle portion of the pencil lead clamping rod is a flat section with a second flat surface at the front, rear, left and right sides, the middle portion of the i-shaped block is disposed in the longitudinal through groove at the middle portion of the pencil lead clamping rod, two ends of the i-shaped block are respectively connected with the flat section at the middle portion of the pencil lead clamping rod, and the lower end of the i-shaped block is connected with the pencil lead.

5. The retractable pencil of claim 1, wherein the outer wall of the i-shaped block is engaged with the inner wall of the hollow barrel by threads.

6. The retractable lead pencil of claim 1 wherein the lower end of the lead holder has a short sleeve having an outer diameter smaller than the outer diameter of the lower end of the lead holder, and the short sleeve has at least two open slits extending downwardly to the port.

7. The retractable lead pencil of claim 1 wherein said lead holder shaft is fixedly attached at a lower end thereof to said hollow tip.

8. The retractable pencil of claim 1 wherein said hollow shaft is selected from the group consisting of a wooden shaft, a metal shaft, and a plastic shaft.

9. The retractable pencil of claim 1, wherein said lead has a cross-section that is rounded and the lower end of the corresponding hollow tip is rounded.