CN210792577U

CN210792577U - Multi-section combined pencil

Info

Publication number: CN210792577U
Application number: CN201921507162.9U
Authority: CN
Inventors: 许越
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-06-19
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a multisection combined pencil, including pencil head section, lead core seat section and a plurality of interlude, pencil head section comprises the assembly of cone section and cylinder section, the cone section includes external conical surface and interior taper hole and axial through-hole, cylinder section includes cylinder surface and the ladder through-hole coaxial with cylinder surface, the ladder through-hole endotheca is equipped with rather than the sleeve of quiet complex, the roof is equipped with in the small hole section in the ladder through-hole, be equipped with lead core clamping ball between roof and interior taper hole, the center of roof is equipped with the lead core hole; the lead core seat section comprises a cylinder body section, one end of the cylinder body section is provided with a convex section which is coaxial with the cylinder body section, the other end of the cylinder body section is provided with a concave section which is coaxial with the cylinder body section, and each section of the plurality of middle sections is identical to the shape and the structural size of the lead core seat section in a whole, namely the lead core blind hole and the lead seat blind hole are changed into a lead core through hole. The pencil has the advantages of simple structure, convenient use, convenient and replaceable lead core, no consumption except the lead core, and long-term use.

Description

Multi-section combined pencil

Technical Field

The utility model relates to a stationery technical field, concretely relates to multisection combination formula pencil.

Background

At present, the existing pencil is made of wood, when the existing pencil is used, the wood is cut off, the existing pencil is inconvenient, the wood is wasted, and in recent years, in order to protect natural resources and strengthen environmental protection, the wood resources are obviously reduced. In addition, in order to better adapt to environmental protection and low-carbon life, the utilization of the recyclable novel pencil is very important. The wooden pencil is inconvenient to use and wastes resources, and the existing mechanical pencil is complex in process, high in price, troublesome in core installation, easy in core breaking and inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a simple structure, use convenient, just with change the lead core, do not have any consumption except the lead core, a multisection combination formula pencil that can use for a long time.

In order to achieve the purpose, the technical scheme of the utility model is to design a multisection combination formula pencil, the pencil includes pencil head section, lead core seat section and a plurality of interlude, the pencil head section comprises the assembly of cone section and cylinder section, the cone section includes outer conical surface and interior taper hole and axial through hole, cylinder section includes cylinder surface and the ladder through-hole coaxial with cylinder surface, the well section in the ladder through-hole is the size shape looks adaptation of interior taper hole main aspects, the big hole section endotheca is equipped with rather than the sleeve of quiet complex in the ladder through-hole, the length of sleeve equals with the length of big hole section in the ladder through-hole, the roof is equipped with in the well section in the ladder through-hole, roof outward flange size is less than the well size of ladder through-hole and is greater than the size of sleeve inner wall, it presss from both sides tight ball to be equipped with the lead core between roof; the lead core seat section comprises a cylinder section which has the same shape and the same size as the cylinder section of the pen point section, one end of the cylinder section is provided with a convex section which is coaxial with the cylinder section, the other end of the cylinder section is provided with a concave section which is coaxial with the cylinder section, the length size and the cross section of the convex section and the concave section are the same, and the lead core seat section is provided with a lead core blind hole and a lead seat blind hole which are coaxial with the cylinder section and form a step; each section in the middle sections is completely the same as the lead seat section in shape and structure size, and only the lead blind holes and the lead seat blind holes are changed into lead through holes.

In order to make the whole pencil look beautiful and ensure that a lead extending out of the end part is not easy to break and no foreign matter enters the middle section or the lead seat section from the tail part, the preferable technical scheme is that a cap and a base are respectively arranged at two ends of the multi-section combined pencil, an inner inserting hole is arranged on the cap and comprises a taper hole section and a straight hole section which are matched with a pencil head, the outer part of the cap is cylindrical, the base is a step cylinder, the length of the first section of the step cylinder is less than or equal to that of the concave section, the shape and the size of the cross section of the step cylinder are the same as those of the cross section of the concave section, and the outer shape and the size of the second section of the step cylinder are the same as those of the lead seat section and the middle.

In order to facilitate the erasing of wrongly written characters or redundant lines, a further preferable technical scheme is that the base is an eraser body.

In order to facilitate connection or detachment between the sections, a further preferred technical scheme is that the pencil head section and the middle section or the pencil lead seat section, the middle section and the pencil lead seat section and the base and the middle section or the pencil lead seat section are in threaded connection, inner threads are arranged on the inner wall of the sleeve, the inner wall of the concave section of the pencil lead seat section and the middle section, outer threads are arranged on the convex section of the pencil lead seat section and the middle section, and the inner threads on the inner wall of the concave section are in threaded connection with the outer threads on the convex section.

In order to facilitate the connection or the disassembly of the sections, the preferable technical scheme is that the pen head section and the middle section or the lead seat section, the middle section and the lead seat section, and the base and the middle section or the lead seat section are connected by buckles, annular inner grooves are arranged on the inner wall of the sleeve and the inner wall of the concave section of the lead seat section and the middle section, outer salient points are arranged on the convex sections of the lead seat section and the middle section, and the annular inner grooves are connected with the outer salient points by buckles.

In order to facilitate the detachment or connection of the middle section, the lead blind hole arranged on the lead hole at the center of the top plate, the lead seat section and the lead through hole arranged on the middle section have the same hole diameter and are larger than the outer diameter of the lead.

In order to fix the lead on the lead seat and prevent the lead from easily slipping, a further preferred technical scheme is that the bore diameter of the lead seat blind hole in the lead seat section is the same as the outer diameter of the lead.

In order to facilitate the processing and manufacturing of the cylinder segment and facilitate the user to hold the pencil, a further preferred technical solution is that the cylinder segment is a prism or a cylinder.

In order to improve the processing and manufacturing efficiency, reduce the processing and manufacturing cost and make the pencil lead seat durable, the preferable technical proposal is that the pencil head section, the pencil lead seat section and the middle section are plastic parts.

In order to facilitate sharpening of the end of the pencil lead and enable the pencil cap to be attractive in appearance, a further preferred technical scheme is that a blade for sharpening the pencil lead or a grinding wheel for sharpening the pencil lead is inserted into the pencil cap, and a cartoon doll is arranged outside the pencil cap.

When the pencil is used, a lead core can be inserted into the stepped blind hole of the lead core seat section. The lead core clamping ball is pushed by the top plate to move towards one side of the conical hole to clamp the lead core, and the other end of the lead core extends out of the lead core section. The pencil lead seat section is also provided with a concave section, then one end of the rubber base can be inserted into the concave section of the pencil lead seat section, and then the end part of the pencil lead can be sharpened or sharpened by a blade for sharpening the pencil lead or a grinding wheel for sharpening the pencil lead, which is arranged inside the pencil cap. When the end of the lead core is worn or broken, the middle section can be disassembled to have two consistent ends, then the lead core is pushed forwards through the lead core seat section, the disassembled middle section is connected to the rear end of the lead core seat section, and then the rubber base is inserted at the tail end of the middle section. Of course, the same structure as the pencil tip section can be adopted at one end of the pencil lead seat section to clamp one end of the pencil lead. The diameter of the middle section is larger than the outer diameter of the lead core, so that the middle section can not rub the lead core in the assembling and disassembling process, the assembling and disassembling are convenient, and the lead core is prevented from being broken off carelessly in the assembling and disassembling process. The rubber base arranged at one end of the pencil and the cap arranged at the other end of the pencil are used for modifying wrong characters or redundant lines and sharpening or sharpening the end part of the pencil. The outer part of the pencil can be made into a hexagonal prism or a cylinder so as to be convenient to use, process and manufacture, and the injection molding piece is adopted as a raw material, so that even if the injection molding piece is processed and manufactured, the processing and manufacturing cost can be reduced, and the pencil can be durable.

The utility model has the advantages and the beneficial effects that: the multi-section combined pencil has the characteristics of simple structure, convenient use, convenient and fast lead core replacement, no consumption except the lead core, long-term use and the like.

Drawings

FIG. 1 is a schematic view of a multi-section combined pencil of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is an exploded view of the use condition of FIG. 2;

FIG. 5 is a cross-sectional view of a one-piece construction of the tip segment;

fig. 6 is a side view of the segments of fig. 3 and 4

FIG. 7 is a side view of the nib in two states of clamping and unclamping the lead;

fig. 8 is a schematic sectional structure view of two pen caps.

In the figure: 1. a tip section; 1.1, a cone section; 1.2, a column section; 1.3, an external conical surface; 1.4, inner taper holes; 1.5, axial through holes; 1.6, the outer surface of the column body; 1.7, a step through hole; 2. a lead core seating segment; 2.1, a column section; 2.2, a convex section; 2.3, a concave section; 2.4, lead blind holes; 2.5, lead seat blind holes; 3. a middle section; 3.1, lead core through holes; 4. a sleeve; 5. a top plate; 5.1, lead core holes; 6. the lead clamping ball; 7. a lead core; 8. a pen cap; 8.1, inserting holes; 8.2, a taper hole section; 8.3, a straight hole section; 8.4, a blade; 8.5, grinding wheels; 9. a base.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in figures 1-8, the utility model relates to a multi-section combined pencil, the pencil comprises a pencil head section 1, a pencil lead seat section 2 and a plurality of middle sections 3, the pencil head section 1 is composed of a cone section 1.1 and a column section 1.2, the cone section 1.1 comprises an external cone surface 1.3, an internal taper hole 1.4 and an axial through hole 1.5, the column section 1.2 comprises a column outer surface 1.6 and a stepped through hole 1.7 coaxial with the column outer surface, the size and shape of the small hole section in the stepped through hole 1.5 and the big end of the internal taper hole 1.4 are matched, a sleeve 4 which is in static fit with the large hole section in the stepped through hole 1.7 is sleeved in the large hole section, the length of the sleeve 4 is equal to that of the large hole section in the stepped through hole, a top plate 5 is arranged in the small hole section in the stepped through hole 1.7, the size of the outer edge of the top plate 5 is smaller than that of the small hole in the stepped through hole 1.7 and larger, a lead core hole 5.1 is formed in the center of the top plate 5; the lead core seat section 2 comprises a cylinder section 2.1 which has the same shape and the same size as the cylinder section 1.2 of the pen head section 1, one end of the cylinder section 2.1 is provided with a convex section 2.2 which is coaxial with the cylinder section 2.1, the other end of the cylinder section 2.1 is provided with a concave section 2.3 which is coaxial with the cylinder section 2.1, the length size and the cross section of the convex section 2.2 and the concave section 2.3 are the same, and the lead core seat section 2 is provided with a lead core blind hole 2.4 and a lead seat blind hole 2.5 which are coaxial with the cylinder section 2.1 and form a step; each section of the plurality of middle sections 3 is completely the same as the lead seat section 2 in shape and structure size, and only the lead blind holes 2.4 and the lead seat blind holes 2.5 are changed into lead through holes 3.1.

In order to make the whole pencil look beautiful and ensure that the lead 7 extending from the end part is not easily broken and the tail part does not have foreign matters to enter the middle section 3 or the inside of the lead seat section 2, the preferred embodiment of the present invention is that the two ends of the multi-section combined pencil are respectively provided with the cap 8 and the base 9, the cap 8 is provided with the inner insertion hole 8.1, the inner insertion hole 8.1 comprises a taper hole section 8.2 and a straight hole section 8.3 matched with the pencil head, the outside of the cap is cylindrical, the base 9 is a stepped cylinder, the length of the first section of the stepped cylinder is less than or equal to the length of the recessed section 2.3, the shape and the size of the cross section are the same as the shape and the size of the cross section of the recessed section 2.3, and the external shape and the size of the second section of the stepped cylinder are the same as the external shape and the size of.

In order to facilitate the erasing of wrongly written characters or redundant lines, a further preferred embodiment of the present invention is that the base 9 is a rubber body.

In order to facilitate the connection or the dismantlement between each section, the utility model discloses further preferred embodiment still, all adopt threaded connection between pen point section 1 and interlude 3 or lead core seat section 2, between interlude 3 and lead core seat section 2, between base 9 and interlude 3 or lead core seat section 2 the inner wall of sleeve 4 and lead core seat section 2 are equipped with the internal thread with the 2.3 inner walls of the sunken section of interlude 3 the 2.2 of the salient section of lead core seat section 2 and interlude 3 are equipped with the external screw thread, the internal thread on the sunken section 2.3 inner wall and the external screw thread threaded connection on the salient section 2.2.

In order to facilitate the connection or the dismantlement between each section, the utility model discloses further preferred embodiment still, adopt the buckle to be connected between pen point section 1 and interlude 3 or lead core seat section 2, between interlude 3 and lead core seat section 2, between base 9 and interlude 3 or lead core seat section 2 the inner wall of sleeve 4 and lead core seat section 2 and the sunken section 2.3 inner wall of interlude 3 are equipped with annular inside groove (not seen in the figure) lead core seat section 2 is equipped with outer bump (not seen in the figure) with the bulge section 2.2 of interlude 3, and annular inside groove and outer bump buckle are connected.

In order to facilitate the disassembly or connection of the middle section 3, the utility model discloses further preferred embodiment still has, sets up the lead blind hole 2.4 that is equipped with on the lead hole 5.1 at the center of the roof 5, the lead block section 2 and the lead through-hole 3.1 of setting on the middle section have the same and be greater than the external diameter of lead 7 in aperture.

In order to fix the lead 7 on the lead seat 2 and prevent it from slipping easily, a further preferred embodiment of the present invention is that the lead seat blind hole 2.5 in the lead seat section 2 has the same diameter as the outer diameter of the lead 7.

In order to facilitate the processing and manufacturing of the cylinder section and also facilitate the holding of the pencil by the user, a further preferred embodiment of the present invention is that the cylinder section 1.2 is a prism or a cylinder.

In order to facilitate the improvement processing manufacturing efficiency, reduce processing manufacturing cost, make its durable moreover, the utility model discloses further preferred embodiment still has, pen point section 1, lead seat section 2 and zhong 3 are the working of plastics.

In order to facilitate sharpening the end of the pencil lead and simultaneously enable the 8-shaped appearance of the pencil cap to be attractive, the utility model discloses a further preferred embodiment still has the inside cartridge of pencil cap 8 is equipped with blade 8.4 for pinning the sharp pencil lead or is used for sharpening emery wheel 8.5 of the pencil lead the outside of pencil cap 8 is equipped with the cartoon doll.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A multi-section combined pencil is characterized by comprising a pencil head section, a lead core seat section and a plurality of middle sections, wherein the pencil head section is composed of a cone section and a cylinder section, the cone section comprises an outer conical surface, an inner conical hole and an axial through hole, the cylinder section comprises a cylinder outer surface and a stepped through hole coaxial with the cylinder outer surface, the size and the shape of the small hole section in the stepped through hole are matched with the size and the shape of the large end of the inner conical hole, a sleeve in static fit with the large hole section in the stepped through hole is sleeved in the large hole section in the stepped through hole, the length of the sleeve is equal to that of the large hole section in the stepped through hole, a top plate is arranged in the small hole section in the stepped through hole, the size of the outer edge of the top plate is smaller than that of the small hole in the stepped through hole; the lead core seat section comprises a cylinder section which has the same shape and the same size as the cylinder section of the pen point section, one end of the cylinder section is provided with a convex section which is coaxial with the cylinder section, the other end of the cylinder section is provided with a concave section which is coaxial with the cylinder section, the length size and the cross section of the convex section and the concave section are the same, and the lead core seat section is provided with a lead core blind hole and a lead seat blind hole which are coaxial with the cylinder section and form a step; each section in the middle sections is completely the same as the lead seat section in shape and structure size, and only the lead blind holes and the lead seat blind holes are changed into lead through holes.

2. The multi-section combined pencil of claim 1, wherein a cap and a base are respectively provided at both ends of said multi-section combined pencil, said cap is provided with an inner insertion hole, said inner insertion hole comprises a tapered hole section and a straight hole section for engaging with said writing tip, said cap is cylindrical, said base is a stepped cylinder, said first section of said stepped cylinder has a length equal to or less than that of said recessed section, said first section has a shape and size equal to those of said recessed section, and said second section has an outer shape and size equal to those of said lead holder section and said intermediate section.

3. The multi-linked combination pencil of claim 2 wherein said base is an eraser body.

4. The multi-joint combined pencil of claim 3, wherein the pencil point section and the middle section or the lead holder section, the middle section and the lead holder section, and the base and the middle section or the lead holder section are connected by screw threads, inner threads are provided on the inner wall of the sleeve and the inner walls of the recessed sections of the lead holder section and the middle section, outer threads are provided on the protruding sections of the lead holder section and the middle section, and the inner threads on the inner walls of the recessed sections are in threaded connection with the outer threads on the protruding sections.

5. The multi-joint combined pencil of claim 3, wherein the pencil point section and the middle section or the lead seat section, the middle section and the lead seat section, and the base and the middle section or the lead seat section are connected by a buckle, the inner wall of the sleeve and the inner wall of the concave section of the lead seat section and the middle section are provided with annular inner grooves, the convex section of the lead seat section and the middle section is provided with outer convex points, and the annular inner grooves are connected with the outer convex points by a buckle.

6. The multi-joint combined pencil of claim 4 or 5, wherein the lead hole provided in the center of the top plate, the blind lead hole provided in the lead holder section, and the lead through hole provided in the middle section have the same diameter and are larger than the outer diameter of the lead.

7. The multi-joint combination pencil of claim 4 or 5 wherein the bore of said lead holder blind hole in said lead holder section is the same as the outer diameter of the lead.

8. The multi-linked combined pencil of claim 1, wherein said barrel segment is prismatic or cylindrical.

9. The multi-linked combination pencil of claim 1, wherein said tip section, said lead holder section and said intermediate section are all plastic parts.

10. The multi-joint combined pencil of claim 2, wherein a blade for sharpening a lead or a grinding wheel for sharpening a lead is inserted into said cap, and a cartoon doll is provided outside said cap.