CN2801492Y - Screw propelling type hand control pencil - Google Patents
Screw propelling type hand control pencil Download PDFInfo
- Publication number
- CN2801492Y CN2801492Y CN 200520091686 CN200520091686U CN2801492Y CN 2801492 Y CN2801492 Y CN 2801492Y CN 200520091686 CN200520091686 CN 200520091686 CN 200520091686 U CN200520091686 U CN 200520091686U CN 2801492 Y CN2801492 Y CN 2801492Y
- Authority
- CN
- China
- Prior art keywords
- lead
- screw
- retractable pencil
- hole
- sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model relates to a screw propelling type hand control pencil which comprises a pen head, a pen holder and a rotating handle. A lead sheath with a lead hole and a pole screw nut are orderly arranged in a hollow cavity formed by the connection of the pen head and the pen holder. The back end of the lead sheath is provided with a rear seat corresponding to the shape of the internal diameter of the pen holder, and the center of the rear seat is provided with a through hole communicated with the lead hole of the lead sheath. An annular lug boss extends from the outer wall of the front end of the pole screw nut, and the inner wall of the pen holder is convexly provided a retainer ring for preventing the annular lug boss from moving backwards. The spout of the lead sheath is corresponding to the inner screw hole of the pole screw nut, and the spout of the lead sheath and the inner screw hole of the pole screw nut are formed in a line. A screw rod penetrates through the lead sheath and the screw hole of the pole screw nut, and the screw rod has outer screw threads screwed with the pole screw nut. The rotating handle is arranged at the back end of the pen holder and connected to the back end of the pole screw nut. The utility model has the advantages of simple structure, convenient operation, difficult break of the lead core, wood saving, environment protection, etc.
Description
(1) technical field
The utility model relates to a kind of stationery, particularly relates to a kind of screw-pushing type manually controlled pencil.
(2) background technology
Pencil is that people work, learn requisite writing implement, a large amount of in the market pencils is still the Wood pencil that need cut head, a spot of is by the formula propelling pencil, thisly by the formula pencil special about 0.7 thin core can only be installed, and is easy to during use fracture.Be not suitable for uses such as mechanical drawing and sketch.And Wood pencil complex manufacturing not only, but also waste a large amount of timber and paint, and also exist potential safety hazard simultaneously, cut finger easily.
(3) summary of the invention
The purpose of this utility model is to overcome the shortcoming that above-mentioned prior art exists, and a kind of simple in structure, easy to use, screw-pushing type manually controlled pencil that lead for retractable pencil is not easily broken is provided.
The technical scheme that adopts is:
A kind of screw-pushing type manually controlled pencil, comprise nib, penholder, swing handle, be equiped with the lead for retractable pencil sheath and the stock screw in band lead for retractable pencil hole before and after in the cavity that connects and composes by nib and penholder successively, the rear end of lead for retractable pencil sheath has the back seat that adapts with penholder internal diameter shape, there is the through hole that is connected with the lead for retractable pencil hole of lead for retractable pencil sheath the center of back seat, the outer wall of stock screw front end has outwards extended annular boss, convex with on the inwall of penholder and be used for the back-up ring that the backstop annular boss is gone here and there backward, the pore of lead for retractable pencil sheath is corresponding with the inner bolt hole of stock screw, and in line, one screw mandrel is located in the screw of lead for retractable pencil sheath and stock screw, has the external screw thread that is screwed with the stock screw on the screw mandrel, swing handle is arranged on the rear end of penholder, and is connected with the rear end of stock screw.
Be provided with a gum cover between the front end of above-mentioned lead for retractable pencil sheath and the inwall of written front end.
Above-mentioned gum cover is a frustum, and end face is provided with the groove of inserting for the front end of lead for retractable pencil sheath thereafter, and the center has the corresponding central through hole in lead for retractable pencil hole with written front end circular hole and lead for retractable pencil sheath.
The rearward end of above-mentioned stock screw is a hexagon, offers the six prismatic grooves that the rear end shape with the stock screw adapts on the front end face of swing handle, and the rear end of stock screw and swing handle are pegged graft.
The back seat of above-mentioned lead for retractable pencil sheath rear end is a hexagon, and the corresponding position of annular boss with the lead for retractable pencil sheath in the penholder has the six prismatic inner chambers that adapt with annular boss.
The utility model compared with prior art, its maximum feature is to drive the screw mandrel bundle by the turn screw to promote pen core and advance, and reaches the purpose of not cutting.And can be used for the pen core of thickness different size, the utlity model has simple in structure, easy to use, lead for retractable pencil not easy fracture, save advantages such as timber and environmental protection.
(4) description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
(5) specific embodiment
See also Fig. 1, a kind of screw propulsion manually controlled pencil of the present utility model, comprise nib 1, penholder 2, swing handle 3, the front portion of nib 1 is taper, its rear portion is a cylindrical shape, and has an external screw thread, the rear portion of nib 1 is threaded with penholder 2 front ends, be equiped with gum cover 4 before and after in the cavity that connects and composes by nib 1 and penholder 2 successively, lead for retractable pencil sheath 5 and stock screw 6 with lead for retractable pencil hole, gum cover 4 is a frustum, thereafter end face is provided with circular groove 15, and the center has central through hole 16, in the circular groove 15 on front end insertion gum cover 4 rear end faces of lead for retractable pencil sheath 5, the rear end of lead for retractable pencil sheath 5 has back seat 7, the outer wall of back seat 7 is a hexagon, for fear of 5 rotations of lead for retractable pencil sheath, is positioned at back seat 7 places in the penholder 2 and makes the six prismatic cavitys that adapt with back seat 7, there is through hole 8 center of back seat 7, and through hole 8 is connected with the lead for retractable pencil hole of lead for retractable pencil sheath 5; The inside extension of outer wall of stock screw 6 front ends is provided with annular boss 9, and the outside wall surface of annular boss 9 is the face of cylinder.The rear portion that is positioned at annular boss 9 on the inwall of penholder 2 convexes with back-up ring 10, and back-up ring 10 is used for backstop annular boss 9, and string is not moving backward to make it.Be screwed into a screw mandrel 11 in the stock screw 6, the front portion of screw mandrel 11 is arranged in the lead for retractable pencil sheath 5, and the front end of screw mandrel 11 has cylindrical bar head 12, and the flat bar of the shaft of screw mandrel 11 for being made of two parallel surfaces and both sides arcwall face has screw thread on the arcwall face of shaft two sides.The rear end of stock screw 6 is a hexagon, offer the six prismatic grooves 13 that six prisms with swing handle 3 rear ends adapt on the front end face of swing handle 3, insert in the six prismatic grooves 13 of swing handle 3 rear end of stock screw 6, and for the ease of turn-knob, axial rings is provided with a plurality of fins 14 on the outer wall of swing handle 3.
Claims (5)
1, a kind of screw-pushing type manually controlled pencil, comprise nib (1), penholder (2), swing handle (3), be equiped with the lead for retractable pencil sheath (5) and the stock screw (6) in band lead for retractable pencil hole before and after it is characterized in that in the cavity that connects and composes by nib (1) and penholder (2) successively, the rear end of lead for retractable pencil sheath (5) has the back seat (7) that adapts with penholder internal diameter shape, there is the through hole that is connected with the lead for retractable pencil hole of lead for retractable pencil sheath (5) center of back seat (7), the outer wall of stock screw (6) front end has outwards extended annular boss (9), convex with on the inwall of penholder (2) and be used for backstop annular boss (9) and go here and there moving back-up ring (10) backward, the pore of lead for retractable pencil sheath (5) is corresponding with the inner bolt hole of stock screw (6), and in line, one screw mandrel (11) is located in the screw of lead for retractable pencil sheath and stock screw (6), has the external screw thread that is screwed with stock screw (6) on the screw mandrel (11), swing handle (3) is arranged on the rear end of penholder (2), and is connected with the rear end of stock screw (6).
2, a kind of screw-pushing type manually controlled pencil according to claim 1 is characterized in that being provided with a gum cover (4) between the inwall of the front end of described lead for retractable pencil sheath (5) and nib (1) front end.
3, a kind of screw-pushing type manually controlled pencil according to claim 2, it is characterized in that described gum cover (4) is a frustum, thereafter end face is provided with the groove (15) of inserting for the front end of lead for retractable pencil sheath (5), and the center has the corresponding central through hole in lead for retractable pencil hole (16) with nib (1) front end circular hole and lead for retractable pencil sheath (5).
4, a kind of screw-pushing type manually controlled pencil according to claim 1, the rearward end that it is characterized in that described stock screw (6) is a hexagon, offer the six prismatic grooves that the rear end shape with stock screw (6) adapts on the front end face of swing handle (3), the rear end of stock screw (6) and swing handle (3) are pegged graft.
5, a kind of screw-pushing type manually controlled pencil according to claim 1, the back seat (7) that it is characterized in that described lead for retractable pencil sheath (5) rear end is a hexagon, and the corresponding position of annular boss with lead for retractable pencil sheath (5) in the penholder (2) has the six prismatic inner chambers that adapt with annular boss (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091686 CN2801492Y (en) | 2005-07-07 | 2005-07-07 | Screw propelling type hand control pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091686 CN2801492Y (en) | 2005-07-07 | 2005-07-07 | Screw propelling type hand control pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2801492Y true CN2801492Y (en) | 2006-08-02 |
Family
ID=36846198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520091686 Expired - Fee Related CN2801492Y (en) | 2005-07-07 | 2005-07-07 | Screw propelling type hand control pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2801492Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786480A (en) * | 2014-03-10 | 2014-05-14 | 杨锦鹏 | Mechanical pencil |
-
2005
- 2005-07-07 CN CN 200520091686 patent/CN2801492Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786480A (en) * | 2014-03-10 | 2014-05-14 | 杨锦鹏 | Mechanical pencil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20100707 |