CN216579875U - Automatic pencil without breaking lead - Google Patents
Automatic pencil without breaking lead Download PDFInfo
- Publication number
- CN216579875U CN216579875U CN202220122332.7U CN202220122332U CN216579875U CN 216579875 U CN216579875 U CN 216579875U CN 202220122332 U CN202220122332 U CN 202220122332U CN 216579875 U CN216579875 U CN 216579875U
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- lead
- pencil
- core
- spring
- tail end
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Abstract
The utility model discloses a propelling pencil without breaking lead, which comprises a pencil lead, wherein the pencil lead is arranged in a pencil head, the tail end of the pencil head is provided with a pencil body, the tail end of the pencil body is provided with a tail clamp, the pencil lead is sent out through the tail end of a lead feeding unit and enters an elastic hose, a lead protecting gasket is extruded when being pushed, when the pencil lead enters the metal core pipe and extends out with proper length, the lead feeding action of the lead feeding unit is ended and rebounds to an initial position, the lead protecting spring rebounds and drives the lead protecting gasket to return to the initial position, meanwhile, the elastic hose arranged in the lead protecting spring is extended, one end of the pencil lead extends out through the metal core pipe, the other end of the pencil lead is arranged in a filling sheath, the metal core pipe does not shake in the metal tip sheath due to the fixation of the filling sheath during writing, meanwhile, the tail end of the pencil lead is fixed by the filling sheath, and the shake of the pencil lead in the metal tip sheath is reduced, thereby achieving the technical effect of preventing the core of the mechanical pencil from being broken.
Description
Technical Field
The utility model relates to the field of pencils, in particular to a mechanical pencil with a continuous core.
Background
The mechanical pencil is usually a pencil which can automatically or semi-automatically lead without coiling and sharpening, and is internally provided with a spring structure, so that the pencil lead can be extended from the fixed length of the front end by pressing a rear cover, and characters with the same thickness can be written.
The mechanical pencil is widely applied to daily work and study, and is mainly a fine pencil lead made of graphite, the diameter of the pencil lead is usually less than 1 mm, so that the pencil lead is broken frequently in use, and the mechanical pencil with continuous lead is provided in order to reduce the breakage of the pencil lead in use.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the mechanical pencil without breaking the pencil lead, and the technical effect of preventing the core breaking of the mechanical pencil is achieved.
In order to solve the technical problems, the utility model provides the following technical scheme: the automatic pencil comprises a pencil core, wherein the pencil core is arranged in a pencil head, the tail end of the pencil head is provided with a pencil body, and the tail end of the pencil body is provided with a tail clip;
the pen point comprises a metal core pipe arranged on the pen core, a filling sheath arranged outside the metal core pipe, a lead protection spring arranged at the tail end of the filling sheath, an elastic hose arranged inside the lead protection spring and a lead protection gasket arranged at the tail end of the lead protection spring.
As a preferable technical scheme of the utility model, the pen point comprises a metal sharp sleeve arranged on the pen core and a fixed interlayer arranged on the periphery of the lead protection spring.
As a preferred technical scheme of the utility model, the metal core tube is arranged at the tail end of the metal sharp sleeve, the filling sheath is arranged in a gap between the metal core tube and the metal sharp sleeve, the filling sheath is made of soft rubber, and a hole slightly larger than the diameter of the pen core is arranged in the filling sheath.
As a preferable technical scheme of the utility model, one end of the lead-protecting spring is fixedly arranged at the tail end of the filling sheath, the outer wall of the fixed interlayer is fixed on the inner wall of the metal sharp sleeve, the inner wall of the fixed interlayer is movably connected with the lead-protecting spring, the diameter of the elastic hose is slightly larger than that of the refill, and the elastic hose is fixed on the inner wall of the lead-protecting spring.
As a preferable technical scheme of the utility model, the pen body comprises a pen holder arranged at the tail end of a metal sharp sleeve, a core feeding unit arranged at one end of the pen holder, a core feeding pipe arranged at the tail end of the core feeding unit, a core feeding spring arranged on the outer wall of the core feeding pipe, a core feeding pipe arranged at the other end of the pen holder, a button spring arranged on the periphery of the core feeding pipe and a core feeding button arranged at the tail end of the button spring.
As a preferred technical scheme of the present invention, the core feeding unit is fixedly installed at one end of the penholder close to the metal tip sleeve, a spacing distance is provided between one end of an outlet of the core feeding unit and the lead protecting gasket, the core feeding tube is fixedly installed at the other end of the core feeding unit, one end of the core feeding spring is fixed on the inner wall of the penholder, and the other end of the core feeding spring is fixed at the tail end of the core feeding tube.
As a preferable technical scheme of the utility model, the tail end of the core feeding pipe is provided with a protruding check ring, one end of the button spring is fixedly connected with the core feeding pipe, and the other end of the button spring is movably connected with the core feeding button.
Compared with the prior art, the utility model can achieve the following beneficial effects:
1. the utility model is characterized in that the pen head comprises a metal core tube arranged on a pen core, a filling sheath arranged outside the metal core tube, a lead protecting spring arranged at the tail end of the filling sheath, an elastic hose arranged inside the lead protecting spring and a lead protecting gasket arranged at the tail end of the lead protecting spring, when the pen core is fed, the pen core is fed out through the tail end of a core feeding unit, the tail end of the core feeding unit is contacted with the lead protecting gasket and pushes the lead protecting gasket while feeding the pen core into the elastic hose, the lead protecting spring is extruded when the lead protecting gasket is pushed, when the pen core enters the metal core tube and extends out with proper length, the core feeding action of the core feeding unit is ended and rebounds to the initial position, the lead protecting spring rebounds and drives the lead protecting gasket to return to the initial position, the elastic hose arranged inside the lead protecting spring is extended, and one end of the pen core extends out through the metal core tube, the other end of the core tube is arranged in the filling sheath, the metal core tube does not shake in the metal tip sleeve due to the fixation of the filling sheath during writing, and meanwhile, the tail end of the pencil core is fixed by the filling sheath, so that the shake of the pencil core tube in the metal tip sleeve is reduced, and the technical effect of preventing the core of the mechanical pencil from being broken is achieved;
2. According to the utility model, the core feeding button is detached, the cartridge is arranged in the core feeding pipe, the cartridge reaches the core feeding pipe through the core feeding pipe and enters the core feeding unit, the core feeding button is arranged, the bottom of the core feeding button is contacted with the tail end of the button spring, the core feeding button is pressed, the button spring is compressed and pushes the core feeding pipe through elasticity, the tail end of the core feeding pipe is contacted with the tail end of the core feeding pipe and pushes the core feeding pipe, the core feeding unit is driven to move when the core feeding pipe is pushed, the lead protecting gasket is in line contact with the core feeding unit when the core is fed, and the lead protecting spring is pushed by the lead protecting gasket to generate elasticity.
Drawings
FIG. 1 is a schematic view of the complete structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged structural view taken at A in FIG. 2 according to the present invention;
fig. 4 is an enlarged structural view of the utility model at B in fig. 2.
Wherein: 1. a pen core; 2. a pen point; 3. a pen body; 4. a tail clip; 21. a metal tip sleeve; 22. a metal core tube; 23. filling a sheath; 24. protecting the lead spring; 25. fixing the interlayer; 26. an elastic hose; 27. a lead-protecting gasket; 31. a pen holder; 32. a core feeding unit; 33. a core feeding pipe; 34. a core feeding spring; 35. a core inlet pipe; 36. a button spring; 37. a core sending button.
Detailed Description
The present invention will be further described with reference to specific examples, but the following examples are only preferred embodiments of the present invention, and not all embodiments of the present invention are intended to be included in the scope of the present invention. Other embodiments obtained by persons skilled in the art without making creative efforts based on the embodiments in the implementation belong to the protection scope of the utility model. The experimental procedures in the following examples were carried out in a conventional manner unless otherwise specified, and materials, reagents and the like used in the following examples were commercially available unless otherwise specified.
The embodiment is as follows:
as shown in fig. 1-4, the automatic pencil with continuous pencil lead comprises a pencil lead 1, wherein the pencil lead 1 is arranged in a pencil head 2, the tail end of the pencil head 2 is provided with a pencil body 3, and the tail end of the pencil body 3 is provided with a tail clip 4;
the nib 2 includes a metal core tube 22 mounted on the refill 1, a filling sheath 23 mounted outside the metal core tube 22, a lead protecting spring 24 mounted at the end of the filling sheath 23, an elastic hose 26 mounted inside the lead protecting spring 24, and a lead protecting washer 27 mounted at the end of the lead protecting spring 24.
In other embodiments, the pen head 2 comprises a metal sharp sleeve 21 arranged on the pen core 1 and a fixing interlayer 25 arranged on the periphery of the lead protecting spring 24, the inner wall of the tail end of the metal sharp sleeve 21 is provided with a thread structure, and the fixing interlayer 25 is fixedly arranged on the inner wall of the metal sharp sleeve 21.
In other embodiments, the metal core tube 22 is installed at the end of the metal sharp sleeve 21, the filling sheath 23 is installed in the gap between the metal core tube 22 and the metal sharp sleeve 21, the filling sheath 23 is made of soft rubber, and is provided with a hole slightly larger than the diameter of the pen core 1 inside, one end of the filling sheath 23 is filled between the metal core tube 22 and the metal sharp sleeve 21, the length of the other end exceeding the metal core tube 22 is arranged inside the metal sharp sleeve 21, and the part of the end of the pen core 1 exceeding the metal core tube 22 is arranged inside the filling sheath 23.
In other embodiments, one end of the lead protection spring 24 is fixedly installed at the tail end of the filling sheath 23, the outer wall of the fixing interlayer 25 is fixed on the inner wall of the metal sharp sleeve 21, the inner wall of the fixing interlayer 25 is movably connected with the lead protection spring 24, the diameter of the elastic hose 26 is slightly larger than that of the refill 1, the elastic hose 26 is fixed on the inner wall of the lead protection spring 24, and when the lead protection spring 24 moves along with the lead protection gasket 27 at the tail end to generate deformation, the elastic hose 26 contracts along with the deformation of the lead protection spring 24.
In other embodiments, the pen body 3 comprises a pen barrel 31 mounted at the end of the metal tip cover 21, a core feeding unit 32 mounted at one end of the pen barrel 31, a core feeding tube 33 mounted at the end of the core feeding unit 32, a core feeding spring 34 mounted on the outer wall of the core feeding tube 33, a core feeding tube 35 mounted at the other end of the pen barrel 31, a button spring 36 mounted on the periphery of the core feeding tube 35, and a core feeding button 37 mounted at the end of the button spring 36, wherein the inside of the core feeding button 37 is fixedly connected with the core feeding tube 35 through interference fit, and the outside of the core feeding button 37 is movably connected with the pen barrel 31.
In other embodiments, the core feeding unit 32 is fixedly installed at one end of the barrel 31 close to the metal tip cover 21, one end of an outlet of the core feeding unit 32 is spaced apart from the lead sheath 27, the core feeding tube 33 is fixedly installed at the other end of the core feeding unit 32, one end of the core feeding spring 34 is fixed on the inner wall of the barrel 31, the other end of the core feeding spring is fixed at the end of the core feeding tube 33, the end of the core feeding tube 33 is pressed to compress the core feeding spring 34, and the core feeding unit 32 is simultaneously operated to feed the cartridge 1, and the end of the core feeding unit 32 contacts the lead sheath 27 and pushes the lead sheath 27 during the core feeding process.
In other embodiments, the end of the cartridge feeding tube 35 is provided with a protruding retainer ring, one end of the button spring 36 is fixedly connected with the cartridge feeding tube 35, the other end is movably connected with the cartridge feeding button 37, the diameter of the cartridge feeding tube 35 is larger than that of the pen core 1 but smaller than that of the cartridge feeding tube 33, and the cartridge feeding button 37 is of a detachable structure.
The working principle of the utility model is as follows: when the pencil lead feeding device is used, the pencil lead 1 is loaded into the core feeding tube 35 by detaching the core feeding button 37, the pencil lead 1 reaches the core feeding tube 33 through the core feeding tube 35 and enters the inside of the core feeding unit 32, the core feeding button 37 is installed, the bottom of the core feeding button 37 is contacted with the tail end of the button spring 36, the core feeding button 37 is pressed, the button spring 36 is compressed by force to push the core feeding tube 35 by elasticity, the tail end of the core feeding tube 35 is contacted with the tail end of the core feeding tube 33 and pushes the core feeding tube 33, the core feeding unit 32 is driven to move when the core feeding tube 33 is pushed, the pencil lead 1 in the core feeding unit is sent out by the tail end of the core feeding unit 32, the tail end of the core feeding unit 32 is contacted with the lead protecting gasket 27 and pushes the lead protecting gasket 27, the pencil lead 1 enters the elastic hose 26 at the same time, the lead protecting gasket 27 is pushed to press the lead protecting spring 24, when the pencil lead protecting gasket 1 enters the inside of the metal core 22 and extends out by proper length, the core feeding operation of the core feeding unit 32 is finished and rebounded to the initial position, the lead protecting spring 24 rebounds and drives the lead protecting washer 27 to return to the initial position, and simultaneously, the elastic hose 26 installed inside the lead protecting spring 24 is extended, and at this time, one end of the pen core 1 is extended through the metal core tube 22, and the other end is disposed inside the filling sheath 23.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The propelling pencil comprises a pencil lead (1) and is characterized in that: the pen core (1) is arranged in the pen point (2), the tail end of the pen point (2) is provided with a pen body (3), and the tail end of the pen body (3) is provided with a tail clip (4);
the pen point (2) comprises a metal core tube (22) arranged on the pen core (1), a filling sheath (23) arranged outside the metal core tube (22), a lead protection spring (24) arranged at the tail end of the filling sheath (23), an elastic hose (26) arranged inside the lead protection spring (24), and a lead protection gasket (27) arranged at the tail end of the lead protection spring (24).
2. The mechanical pencil of claim 1, wherein: the pen point (2) comprises a metal tip sleeve (21) arranged on the pen core (1) and a fixed interlayer (25) arranged on the periphery of the lead protecting spring (24).
3. The mechanical pencil of claim 1, wherein: the utility model discloses a refill, including metal sharp cover (21), metal core pipe (22), packing sheath (23) and filling sheath (23), the end at metal sharp cover (21) is installed in metal core pipe (22), fill sheath (23) and adopt the soft rubber preparation of texture, and inside is provided with slightly to be greater than the hole of refill (1) diameter.
4. The mechanical pencil of claim 2, wherein: one end of the lead protection spring (24) is fixedly installed at the tail end of the filling sheath (23), the outer wall of the fixed interlayer (25) is fixed on the inner wall of the metal sharp sleeve (21), the inner wall of the fixed interlayer (25) is movably connected with the lead protection spring (24), the diameter of the elastic hose (26) is slightly larger than that of the refill (1), and the elastic hose (26) is fixed on the inner wall of the lead protection spring (24).
5. The mechanical pencil of claim 1, wherein: the pen body (3) comprises a pen holder (31) arranged at the tail end of a metal tip sleeve (21), a core feeding unit (32) arranged at one end of the pen holder (31), a core feeding pipe (33) arranged at the tail end of the core feeding unit (32), a core feeding spring (34) arranged on the outer wall of the core feeding pipe (33), a core feeding pipe (35) arranged at the other end of the pen holder (31), a button spring (36) arranged on the periphery of the core feeding pipe (35), and a core feeding button (37) arranged at the tail end of the button spring (36).
6. The mechanical pencil of claim 5, wherein: the pencil lead feeding device is characterized in that the lead feeding unit (32) is fixedly installed at one end, close to the metal tip sleeve (21), in the pencil holder (31), a spacing distance is arranged between one end of an outlet of the lead feeding unit (32) and the lead protecting gasket (27), the lead feeding pipe (33) is fixedly installed at the other end of the lead feeding unit (32), one end of the lead feeding spring (34) is fixed to the inner wall of the pencil holder (31), and the other end of the lead feeding spring is fixed to the tail end of the lead feeding pipe (33).
7. The mechanical pencil of claim 5, wherein: the tail end of the core feeding pipe (35) is provided with a protruding check ring, one end of the button spring (36) is fixedly connected with the core feeding pipe (35), and the other end of the button spring is movably connected with the core feeding button (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220122332.7U CN216579875U (en) | 2022-01-18 | 2022-01-18 | Automatic pencil without breaking lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220122332.7U CN216579875U (en) | 2022-01-18 | 2022-01-18 | Automatic pencil without breaking lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216579875U true CN216579875U (en) | 2022-05-24 |
Family
ID=81636007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220122332.7U Active CN216579875U (en) | 2022-01-18 | 2022-01-18 | Automatic pencil without breaking lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216579875U (en) |
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2022
- 2022-01-18 CN CN202220122332.7U patent/CN216579875U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |