CN204136631U - The multi-functional red blue lead mechanical pencil of a kind of engineering - Google Patents

Abstract

The utility model discloses the multi-functional red blue lead mechanical pencil of a kind of engineering, comprise side by formula red and blue pencil bar, marking pen penholder and connecting portion, side comprises the first stroke shell by formula red and blue pencil bar, nib, dop knockout pipe, dop, flexible member, side button, in-core side press out plumbous component and dress lead for retractable pencil pipe, and marking pen penholder comprises second shell, the cap for brush, ink storage cotton core and fiber nib.The utility model novel structure is ingenious, its side is by the structure of knockout design, more convenient, red blue lead core rectangular cross-sectional replaces circular cross-section, without the need to sharpening a pencil, being gently pressed by side button just can knockout, increase work efficiency further, thoroughly replace traditional wooden red and blue pencil, its other end is designed to round end marking pen simultaneously, ensure that the even width of mark line also can reduce the loss in use procedure simultaneously, increase its service life; This project is multiplex with multi-functional red blue lead mechanical pencil one, adapts to the complex environment of engineering site completely, convenient and swift, high-efficiency environment friendly.

Description

The multi-functional red blue lead mechanical pencil of a kind of engineering

Technical field

The utility model relates to a kind of engineering pen, particularly relates to the multi-functional red blue lead mechanical pencil of a kind of engineering.

Background technology

Along with the development of science and technology and the raising of people's living standard, pen has become the indispensable article of people, its development has extremely long history, and the shape of pen, function are also improvement of constantly upgrading, As time goes on, the kind of pen is also more and more, chalk, writing brush, pencil, dumpling made of glutinous rice flour pen, water-color paintbrush, pastel, pen, marking pen etc.In engineering, overwhelming majority Method and Technology is also constantly improving and promoting, project progress and quality are significantly improved.

But the red and blue pencil in engineering does not almost have improved, still rest on the structure using wood materials to be wrapped in red blue lead core, with cutter, red blue lead must be cut before using, and when the nib cut out has been used up, operation of must stopping repeats to cut pen again, not only to lose time but also not environmentally, and affect the continuity of construction operation further.The trend obviously not caught up with social high speed development today updated, more cannot meet the theory of the whole world low-carbon environment-friendly that society is advocated, and above-mentioned red blue lead function singleness, repeatedly cut pen not only to lose time, affect construction operation, and the manufacture of a large amount of red blue leads also causes the felling of a large amount of trees, not environmentally, resource is wasted.

Utility model content

The purpose of this utility model is to provide a kind of engineering multi-functional red blue lead mechanical pencil, to solve the defect or deficiency that exist in prior art.The multi-functional red blue lead mechanical pencil of this project, novel structure is ingenious, its side is by the structure of knockout design, more convenient, does not need the waste motion sharpened a pencil, being gently pressed by side button just can knockout, thus increase work efficiency further, thoroughly replace traditional wooden red and blue pencil, this other end is designed to the marking pen of round end simultaneously, ensure that the even width of mark line also can reduce the loss in use procedure simultaneously, increase its service life; This project is multiplex with multi-functional red blue lead mechanical pencil one, adapts to the complex environment of engineering site completely, convenient and swift, high-efficiency environment friendly.

To achieve these goals, the utility model adopts following technical scheme:

The multi-functional red blue lead mechanical pencil of a kind of engineering, comprise side by formula red and blue pencil bar, marking pen penholder and connecting portion, described red and blue pencil bar engages with one end of described connecting portion, the other end engaging of described marking pen penholder and described connecting portion.

Further, described side comprises the first stroke shell by formula red and blue pencil bar, nib, dop knockout pipe, dop, flexible member, side button, in-core side press out plumbous component and dress lead for retractable pencil pipe, the head of described the first stroke shell engages with described nib, and afterbody engages with one end of described connecting portion; Be provided with described dress lead for retractable pencil pipe successively by afterbody to the head of the first stroke shell in described the first stroke shell, in-core side presses out plumbous component and dop knockout pipe, the side of described the first stroke shell is provided with side key hole, is provided with to press out plumbous component with described in-core side and engage and drive in-core side to press out the described side button of plumbous component to the movement of written direction in the key hole of described side; It is hollow that described in-core side presses out plumbous component inside, and its tail end is fastened on outside the head end of dress lead for retractable pencil pipe, is provided with collar stop outside head end; The tail end of described dop knockout pipe is fastened on in-core side and presses out in the head end of plumbous component, and described flexible member is set in the periphery, holding section that described dop knockout pipe and in-core side press out plumbous component, and the tail end backstop of flexible member is in the written side of collar stop; Described dop is located at outside the head of described dop knockout pipe.

Further, the tail end that described in-core side presses out plumbous component is inclined-plane, and in the middle part of it, outside is provided with second inclined-plane consistent with tail end bevel direction; Described side button comprise outside hand by portion and be located at described outside hand by subordinate first extend holding section and second extend holding section, described first side extending holding section and the second close nib in extension holding section is inclined-plane, and described first extension holding section is fastened on described in-core side and presses out on second inclined-plane in outside in the middle part of plumbous component, and the second extension holding section is fastened on in-core side and presses out on the inclined-plane of plumbous component tail end.

Described side button design structure is ingenious, and its main purpose is more convenient, instead of in a design for top button knockout, increases operation continuity, reduces the unnecessary time.

The head end of above-mentioned dop core storage tube has elasticity, and has bullet elastic force laterally.

Further, in the head of described the first stroke shell, be provided with the annular protrusion extended internally, the annular protrusion place of head end backstop in the first stroke shell head of described flexible member.

Preferably, described dop comprises oval cylinder ring plate and is located at oval cylinder ring plate head and the second ring plate extended laterally along external edge of head.

Further, cavity in described nib is by head rearwardly stepped arrangement successively, comprise oval lead for retractable pencil section respectively, first ladder section, second-order bench and the 3rd ladder section, the head of described the first stroke shell is buckled in described 3rd ladder section and second-order bench, and the head end of the first stroke shell is positioned at the middle part of second-order bench, with the front cavity facilitating dop to fall into second-order bench with dop knockout pipe when written direction is moved, and backstop is at the leading flank of second-order bench.

Preferably, described nib is stainless steel nib or wear-resistant plastics nib.Described written material is stainless steel and two kinds, wear-resistant plastics, and when the surface of wanted setting-out is matsurface, (as concrete surface) can use stainless steel nib, generally uses wear-resistant plastics nib compared with smooth surface.

Described nib is connected with the head of the first stroke shell and is specifically designed to snap-on design, better embodies the globality of design, is not easy to loosen and come off.

Preferably, the cross section of described the first stroke shell is oval, and minor axis × major axis=11mm × 13mm.Described the first stroke shell size is the elliptic design of 11mm × 13mm, based on being referenced as ergonomics, a body and human contact's area is increased, and makes the more comfortable and difficult drop-off of hand.Preferably, the cross section of described dop core storage tube and dop is ellipse.

Further, described engineering also comprises with multi-functional red blue lead mechanical pencil is located at described side by the pen core in formula red and blue pencil bar, and described pen core is red lead pen core, blue lead pen core or black pen core.

Preferably, the specification of described pen core is 2 × 3 × 60mm, change the design of red and blue pencil circle lead for retractable pencil, can directly use, do not need to cut lead for retractable pencil, this size is put into practice in a large number for engineering site and is got, can be operated by 2mm live width by the general setting-out of a large amount of field practices, and 3mm design once goes out plumbous service time to increase, under special environment, can directly use again 3mm to carry out setting-out mark, and 3mm just in time can increase the service time once going out lead, reduce by plumbous number of times, increase operating efficiency, extend the service life of a lead for retractable pencil, thus realize the theory of the multiple usage of a kind of pen core, from starting section, circular lead for retractable pencil not reached for this.

Preferably, described flexible member is spring.

Further, described marking pen penholder comprises second shell, the cap for brush, ink storage cotton core and fiber nib, and the head of described second shell engages with the described cap for brush, and afterbody engages with the other end of described connecting portion.

Preferably, the head of described fiber nib is rounded nose, and this fiber nib is specifically designed to rounded nose, also can be reduced the loss in use procedure, increase its service life while the even width ensureing mark line; The design that the rounded diameter of the other end of described fiber nib diminishes gradually, thus make the colored ink in ink storage cotton core more flow rapidly into mark nib.

Further, described connecting portion comprises cylindroid and is located at the partition in the middle part of cylindroid, one end of described cylindroid engages with the afterbody of described the first stroke shell, the other end engages with the afterbody of described second shell, the overall diameter of described partition is greater than the overall diameter of described cylindroid, its object is to conveniently be connected with first, second shell engagement release.Described connecting portion and the first stroke shell and second shell are click-on design, thus better dock with shell, are also easy to open with the connection of the first stroke shell to enter red blue lead core, and conveniently remove the connection with second shell, add ink operation to ink storage cotton core.

The multi-functional red blue lead automatic pencil of engineering of the present utility model has following features:

1, the unique cross section of pen core described in the utility model is designed for rectangle, it is of a size of 2 × 3 × 60mm, change the design of red and blue pencil circular cross-section lead for retractable pencil, can directly use, do not need to cut lead for retractable pencil, can be operated with 2mm is wide by the general setting-out of a large amount of field practices, and another side 3mm size can increase the service time once going out lead, reduce by plumbous number of times, increase operating efficiency, extend the service life of a lead for retractable pencil, under special environment, 3mm can be used again to carry out setting-out mark, thus realize the theory of the multiple usage of a kind of pen core, from starting section, circular lead for retractable pencil not reached for this.The main color of lead for retractable pencil is red, and blue, black, is also furnished with the environment for use that other color is assisted to tackle various complexity, plays this maximum value.

2, nib design employing two class nib described in the utility model, a kind of to make for stainless steel material, its main environment for use be the more coarse surface easy to wear of engineering site (as concrete surface. reinforcing bar. steel construction etc.), another kind is engineering plastics material, may be used for engineering site smoother surface (as template. wall surface. plasterboard etc.).Nib is connected for buckle connects with a body, better ensure that the integraty of pen.

3, described in the utility model shell adopts similar Ellipse design, and its major design is thought of as two aspects, and one is the principle of obeying pen core shape, makes this profile more small and exquisite concise; Two use this to design based on ergonomics, and oval design can increase the contact area with hand, make the more comfortable and difficult drop-off of hand.Q portion, knockout button side is main with female abutment, is planar design, allows when holding pen more comfortable.And side button and written mid portion have concave design to increase frictional force.

4, with multi-functional red blue lead mechanical pencil, engineering of the present utility model considers that the theory of design compact volume and convenience is so the cross section of dop core storage tube and dop is ellipse.

5, engineering of the present utility model is the interim storeroom of lead for retractable pencil with the dress lead for retractable pencil pipe of multi-functional red blue lead mechanical pencil, protects the inner lead for retractable pencil of propelling pencil can not make lead for retractable pencil fracture in pen because of external force factors such as vibrations simultaneously.

6, the connecting portion of pen described in the utility model is connected together with the first stroke shell and second shell respectively, for convenience detach and installation; The material of its ink storage cotton core is polyster fibre, durablely adds prepared Chinese ink storage simultaneously.

7, the engineering of the present utility model mark nib of multi-functional red blue lead mechanical pencil is specifically designed to rounded nose, rounded nose design in use has to reduce weares and teares, increase the character of service time, and an other end round diameter design is gradually little, thus the colored ink in ink storage cotton core is made more to flow rapidly into mark nib.

The multi-functional red blue lead mechanical pencil of engineering of the present utility model, novel structure is ingenious, its side is by the structure of knockout design, more convenient, does not need the waste motion sharpened a pencil, being gently pressed by side button just can knockout, thus increase work efficiency further, thoroughly replace traditional wooden red and blue pencil, this other end is designed to the marking pen of round end simultaneously, ensure that the even width of mark line also can reduce the loss in use procedure simultaneously, increase its service life; This project is multiplex with multi-functional red blue lead mechanical pencil one, adapts to the complex environment of engineering site completely, convenient and swift, high-efficiency environment friendly.

The utility model is the dual-purpose full-automatic red blue lead mechanical pencil of a kind of engineering, designs especially, instead of the red and blue pencil of engineering site completely for adaptation engineering site complex environment.Engineering site technical staff uses maximum pens to only have two kinds, one is marked pen, another kind is then red and blue pencil, the utility model is that two kinds of functions improve aggregates, and a pen just can tackle on-the-spot all complex environments, due to engineering want the face (concrete surface of setting-out, template surface etc.) be all coarse rough surface, therefore mark nib adopts round end design, ensures that the even width of mark line also can reduce nib wearing and tearing simultaneously, increases service life; Red blue lead core cross section instead of circular cross-section lead for retractable pencil in the past by rectangle and designs, need before need not using as pencil to cut the unnecessary operation of pen, lead for retractable pencil can directly use, automatic nib design material is divided into stainless steel and wear-resistant plastics, propelling pencil brand-new design is that side is designed by knockout, more convenient, thus increase work efficiency further.

Accompanying drawing explanation

Fig. 1 is the outward appearance front view of the utility model engineering with multi-functional red blue lead mechanical pencil.

Fig. 2 is the outside side view of the utility model engineering with multi-functional red blue lead mechanical pencil.

Fig. 3 is for the A-A of schematic diagram shown in Fig. 1 is to sectional view.

Fig. 3-2 is for having the multi-functional red blue lead mechanical pencil schematic diagram of engineering of flexible member.

Fig. 4 is for the B-B of schematic diagram shown in Fig. 2 is to sectional view.

Fig. 5 is elastic element structure schematic diagram.

Fig. 6 is that in-core side presses out plumbous component cross-sectional schematic.

Fig. 7 is the dop knockout pipe schematic diagram with dop, the core mouth display open configuration of illustrated dop knockout pipe.

Fig. 8 is the dop knockout pipe schematic diagram that core mouth is shown as non-open configuration.

Fig. 9 is dop schematic diagram.

Figure 10 is side button schematic diagram.

Figure 11 is written cross-sectional schematic.

Figure 12 is written schematic diagram.

Figure 13 is pen core schematic diagram.

Figure 14 is fiber nib schematic diagram.

Figure 15 is connecting portion schematic diagram.

Detailed description of the invention

By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present utility model and effect easily.

As Figure 1-Figure 4, the multi-functional red blue lead mechanical pencil of engineering of the present utility model, comprise side by formula red and blue pencil bar 1, marking pen penholder 2 and connecting portion 3, described side engages with one end of described connecting portion 3 by formula red and blue pencil bar 1, the other end engaging of described marking pen penholder 2 and described connecting portion 3.

Further, as shown in figs 2-4, described side comprises the first stroke shell 11 by formula red and blue pencil bar 1, nib 12, dop knockout pipe 13, dop 14, flexible member 15 (as shown in Fig. 3-2 and Fig. 5), side button 16, in-core side press out plumbous component 17 and dress lead for retractable pencil pipe 18, the head 111 of described the first stroke shell 11 engages with described written 12, and afterbody 112 engages with one end of described connecting portion 3; Be provided with described dress lead for retractable pencil pipe 18 successively by afterbody to the head of the first stroke shell in described the first stroke shell 11, in-core side presses out plumbous component 17 and dop knockout pipe 13, the side of described the first stroke shell 11 is provided with side key hole, is provided with to press out plumbous component with described in-core side and engage and drive in-core side to press out the described side button 16 of plumbous component to the movement of written direction in the key hole of described side; Described in-core side presses out plumbous component 17 inside for hollow, and its tail end 171 is fastened on outside the head end of dress lead for retractable pencil pipe 18, is provided with collar stop 173 (as shown in Figure 6) outside head end 172; The tail end 131 of described dop knockout pipe 13 (as shown in Figure 7 and Figure 8) is fastened on in-core side and presses out in the head end of plumbous component 17, described flexible member 15 (as shown in Figure 5) is set in the periphery, holding section that described dop knockout pipe 13 and in-core side press out plumbous component 17, and the tail end backstop of flexible member 15 is in the written side of collar stop 173; Outside the head that described dop 14 (as shown in Figure 9) is located at described dop knockout pipe 13 (as shown in Figure 7).

Further, as shown in Figure 4, the annular protrusion 113 extended internally in the head of described the first stroke shell 11, is provided with, annular protrusion 113 place of head end backstop in the first stroke shell head of described flexible member 15.

Further, as shown in Figure 6, described in-core side presses out the tail end 171 of plumbous component 17 in inclined-plane 175, and in the middle part of it, outside is provided with second inclined-plane 174 consistent with tail end bevel direction; As shown in Figure 10, described side button 16 comprises outside hand by portion 161 be located at described outside hand and extend holding section 162 and second by subordinate's first and extend holding section 163, described first extends holding section 162 and second extends the side 164 of holding section 163 near nib, 165 all in inclined-plane, and described first extension holding section 162 is fastened on described in-core side and presses out on second inclined-plane 174 in outside in the middle part of plumbous component 17, and the second extension holding section 163 is fastened on in-core side and presses out on the inclined-plane 175 of plumbous component tail end.

Described side button design structure is ingenious, and its main purpose is more convenient, instead of in a design for top button knockout, increases operation continuity, reduces the unnecessary time.

The head end of above-mentioned dop core storage tube has elasticity, and has bullet elastic force laterally.

Preferably, as shown in Figure 9, described dop 14 comprises oval cylinder ring plate 141 and is located at oval cylinder ring plate head and the second ring plate 142 extended laterally along external edge of head.

Further, as shown in figure 11, cavity in described written 12 is by head rearwardly stepped arrangement successively, comprise oval lead for retractable pencil section 121 respectively, first ladder section 122, second-order bench 123 and the 3rd ladder section 124, the head 111 of described the first stroke shell 11 is fastened in described 3rd ladder section 124 and second-order bench 123, and head 111 end face of the first stroke shell is positioned at the middle part (as shown in Figure 3) of second-order bench 123, when written direction is moved, the front cavity 125 (as shown in Figure 4) of second-order bench 123 is fallen into dop knockout pipe 13 to facilitate dop 14, and backstop is at the leading flank 126 (as shown in Figure 4) of second-order bench 123.

Preferably, as is illustrated by figs. 11 and 12, described written 12 is stainless steel nib or wear-resistant plastics nib.Described written material is stainless steel and two kinds, wear-resistant plastics, and when the surface of wanted setting-out is matsurface, (as concrete surface) can use stainless steel nib, generally uses wear-resistant plastics nib compared with smooth surface.

Described nib is connected with the head of the first stroke shell and is specifically designed to snap-on design, better embodies the globality of design, is not easy to loosen and come off.

Preferably, the cross section of described the first stroke shell is oval, and minor axis × major axis=11mm × 13mm.Described the first stroke shell size is the elliptic design of 11mm × 13mm, based on being referenced as ergonomics, a body and human contact's area is increased, and makes the more comfortable and difficult drop-off of hand.Preferably, the cross section of described dop core storage tube 13 and dop 14 is ellipse, to adapt to the first stroke shell of elliptic cross-section.

Further, as shown in figure 13, described engineering also comprises with multi-functional red blue lead mechanical pencil is located at described side by the pen core 19 in formula red and blue pencil bar, and described pen core 19 is red lead pen core, blue lead pen core or black pen core.

Preferably, as shown in figure 13, the specification of described pen core 19 is that (namely length is 60mm to 2 × 3 × 60mm, cross section is square, this square length is 3mm, wide is 2mm), change the design of red and blue pencil circle lead for retractable pencil, can directly use, do not need to cut lead for retractable pencil, this size is put into practice in a large number for engineering site and is got, can be operated by 2mm live width by the general setting-out of a large amount of field practices, and 3mm design once goes out plumbous service time to increase, under special environment, can directly use again 3mm to carry out setting-out mark, and 3mm just in time can increase the service time once going out lead, reduce by plumbous number of times, increase operating efficiency, extend the service life of a lead for retractable pencil, thus realize the theory of the multiple usage of a kind of pen core, from starting section, circular lead for retractable pencil not reached for this.

Preferably, as shown in Figure 5, described flexible member 15 is spring.

Further, as Figure 1-Figure 4, described marking pen penholder 2 comprises second shell 21, the cap for brush 22, ink storage cotton core 23 and fiber nib 24, and the head of described second shell 21 engages with the described cap for brush 22, and afterbody engages with the other end of described connecting portion 3.

Preferably, as shown in Figure 14, Fig. 3-Fig. 4, the head of described fiber nib 24 is rounded nose 241, this fiber nib is specifically designed to rounded nose, also can be reduced the loss in use procedure, increase its service life while the even width ensureing mark line; The design that the rounded diameter of the other end 242 of described fiber nib diminishes gradually, thus make the colored ink in ink storage cotton core more flow rapidly into mark nib.

Further, as shown in figure 15, the partition 31 that described connecting portion 3 comprises cylindroid 32 and is located in the middle part of cylindroid, one end 33 of described cylindroid engages with the projection of afterbody outside cylindroid 32 of described the first stroke shell 11, the other end 34 engages with the projection of afterbody outside cylindroid of described second shell 21, and the overall diameter of described partition 31 is greater than the overall diameter of described cylindroid 32.Described connecting portion and the first stroke shell and second shell are click-on design, thus better dock with shell, are also easy to open with the connection of the first stroke shell to enter red blue lead core, and conveniently remove the connection with second shell, add ink operation to ink storage cotton core.

When engineering of the present utility model uses with multi-functional red blue lead mechanical pencil, first method is, the automatic lead for retractable pencil of red blue lead can add from written lead outlet, side button is pinned while adding lead for retractable pencil, make it drive core inner buttons to go out plumbous component to move to written direction, flexible member is compressed, go out with core inner buttons the dop core storage tube that plumbous component is connected to move to written direction simultaneously, when moving to certain distance because dop external diameter is larger than written internal diameter, dop stops mobile, and backstop is at the leading flank of written second-order bench, and dop core storage tube continues the change of the mobile mouth of knockout simultaneously greatly, thus lead for retractable pencil is at the uniform velocity put into, side button is unclamped after putting into, spring element returns drives core inner buttons, dop core storage tube and dop homing, when being returned to original position because above-mentioned internal diameter reason makes dop core storage tube mouth tighten up thus fix lead for retractable pencil.

Second method is, extract the connection of connecting portion and the first stroke shell, lead for retractable pencil is directly put into dress lead for retractable pencil pipe, again connecting portion and the first stroke shell are connected, pin side button, side button drives in-core side to press out plumbous component and moves to written direction, flexible member is compressed, go out with core inner buttons the dop core storage tube that plumbous component is connected to move to written direction simultaneously, when moving to certain distance because dop external diameter is larger than written internal diameter, dop stops mobile, and backstop is at the leading flank of written second-order bench, and dop core storage tube continues the change of the mobile mouth of knockout simultaneously greatly, lead for retractable pencil will move from lead for retractable pencil Guan Zhongxiang nib direction, unclamp side button, spring element returns drives core inner buttons, dop core storage tube and dop homing, when being returned to original position because above-mentioned internal diameter reason makes dop core storage tube mouth tighten up thus fix lead for retractable pencil, repeat lead for retractable pencil several times just can use after nib out a segment distance.

The multi-functional red blue lead automatic pencil of engineering of the present utility model has following features:

1, the unique cross section of pen core described in the utility model is designed for rectangle, it is of a size of 2 × 3 × 60mm, change the design of red and blue pencil circular cross-section lead for retractable pencil, can directly use, do not need to cut lead for retractable pencil, can be operated with 2mm is wide by the general setting-out of a large amount of field practices, and 3mm can increase the service time once going out lead, reduce by plumbous number of times, increase operating efficiency, extend the service life of a lead for retractable pencil, under special environment, 3mm can be used again to carry out setting-out mark, thus realize the theory of the multiple usage of a kind of pen core, from starting section, circular lead for retractable pencil not reached for this.The main color of lead for retractable pencil is red, and blue, black, is also furnished with the environment for use that other color is assisted to tackle various complexity, plays this maximum value.

2, nib design employing two class nib described in the utility model, a kind of to make for stainless steel material, its main environment for use be the more coarse surface easy to wear of engineering site (as concrete surface. reinforcing bar. steel construction etc.), another kind is engineering plastics material, may be used for engineering site smoother surface (as template. wall surface. plasterboard etc.).Nib is connected for being connected together with a body, better ensure that the integraty of pen.

3, described in the utility model shell adopts similar Ellipse design, and its major design is thought of as two aspects, and one is the principle of obeying pen core shape, makes this profile more small and exquisite concise; Two use this to design based on ergonomics, and oval design can increase the contact area with hand, make the more comfortable and difficult drop-off of hand.Q portion, knockout button side is main with female abutment, is planar design, allows when holding pen more comfortable.And side button and written mid portion have concave design to increase frictional force.

4, with multi-functional red blue lead mechanical pencil, engineering of the present utility model considers that the theory of design compact volume and convenience is so the cross section of dop core storage tube and dop is ellipse.

5, engineering of the present utility model is the interim storeroom of lead for retractable pencil with the dress lead for retractable pencil pipe of multi-functional red blue lead mechanical pencil, protects the inner lead for retractable pencil of propelling pencil can not make lead for retractable pencil fracture in pen because of external force factors such as vibrations simultaneously.

6, the connecting portion of pen described in the utility model is connected with the first stroke shell and second shell buckle respectively, for convenience detach and installation; The material of its ink storage cotton core is polyster fibre, has the feature that durable ink reservoir volume is large.

7, the engineering of the present utility model mark nib of multi-functional red blue lead mechanical pencil is specifically designed to rounded nose, rounded nose design in use has to reduce weares and teares, increase the character of service time, and an other end round diameter design is gradually little, thus the colored ink in ink storage cotton core is made more to flow rapidly into mark nib.

The multi-functional red blue lead mechanical pencil of engineering of the present utility model, novel structure is ingenious, its side is by the structure of knockout design, more convenient, does not need the waste motion sharpened a pencil, being gently pressed by side button just can knockout, thus increase work efficiency further, thoroughly replace traditional wooden red and blue pencil, this other end is designed to the marking pen of round end simultaneously, ensure that the even width of mark line also can reduce the loss in use procedure simultaneously, increase its service life; This project is multiplex with multi-functional red blue lead mechanical pencil one, adapts to the complex environment of engineering site completely, convenient and swift, high-efficiency environment friendly.

Although more employ such as lead for retractable pencil, nib, dop core storage tube, dop, flexible member, side button, in-core side press out the term such as plumbous component, dress lead for retractable pencil pipe, the first stroke shell, connecting portion, second shell, ink storage cotton core, fiber nib, the cap for brush, do not get rid of the possibility using other term herein.These terms are used to be only used to describe and explain that essence of the present utility model is not disagreed with spirit of the present utility model more easily.

Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.

Claims (10)

1. the multi-functional red blue lead mechanical pencil of engineering, it is characterized in that, comprise side by formula red and blue pencil bar, marking pen penholder and connecting portion, described side engages with one end of described connecting portion by formula red and blue pencil bar, the other end engaging of described marking pen penholder and described connecting portion.

2. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 1, it is characterized in that, described side comprises the first stroke shell by formula red and blue pencil bar, nib, dop knockout pipe, dop, flexible member, side button, in-core side press out plumbous component and dress lead for retractable pencil pipe, the head of described the first stroke shell engages with described nib, and afterbody engages with one end of described connecting portion; Be provided with described dress lead for retractable pencil pipe successively by afterbody to the head of the first stroke shell in described the first stroke shell, in-core side presses out plumbous component and dop knockout pipe, the side of described the first stroke shell is provided with side key hole, is provided with to press out plumbous component with described in-core side and engage and drive in-core side to press out the described side button of plumbous component to the movement of written direction in the key hole of described side; It is hollow that described in-core side presses out plumbous component inside, and its tail end is fastened on outside the head end of dress lead for retractable pencil pipe, is provided with collar stop outside its head end; The tail end of described dop knockout pipe is fastened on in-core side and presses out in the head end of plumbous component, and described flexible member is set in the periphery, holding section that described dop knockout pipe and in-core side press out plumbous component, and the tail end backstop of flexible member is in the written side of collar stop; Described dop is located at outside the head of described dop knockout pipe.

3. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 2, it is characterized in that, the tail end that described in-core side presses out plumbous component is inclined-plane, and in the middle part of it, outside is provided with second inclined-plane consistent with tail end bevel direction; Described side button comprise outside hand by portion and be located at described outside hand by subordinate first extend holding section and second extend holding section, described first side extending holding section and the second close nib in extension holding section is inclined-plane, and described first extension holding section is fastened on described in-core side and presses out on second inclined-plane in outside in the middle part of plumbous component, and the second extension holding section is fastened on in-core side and presses out on the inclined-plane of plumbous component tail end.

4. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 3, is characterized in that, be provided with the annular protrusion extended internally in the head of described the first stroke shell, the annular protrusion place of head end backstop in the first stroke shell head of described flexible member.

5. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 2, it is characterized in that, cavity in described nib is by head rearwardly stepped arrangement successively, comprise oval lead for retractable pencil section respectively, first ladder section, second-order bench and the 3rd ladder section, the head of described the first stroke shell is buckled in described 3rd ladder section and second-order bench, and the head end of the first stroke shell is positioned at the middle part of second-order bench, with the front cavity facilitating dop to fall into second-order bench with dop knockout pipe when written direction is moved, and backstop is at the leading flank of second-order bench.

6. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 2, it is characterized in that, described engineering also comprises with multi-functional red blue lead mechanical pencil is located at described side by the pen core in formula red and blue pencil bar, and the specification of described pen core is 2 × 3 × 60mm.

7. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 1, it is characterized in that, described engineering also comprises with multi-functional red blue lead mechanical pencil is located at described side by the pen core in formula red and blue pencil bar, and described pen core is red lead pen core, blue lead pen core or black pen core.

8. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 2, is characterized in that, described nib is stainless steel nib or wear-resistant plastics nib.

9. the multi-functional red blue lead mechanical pencil of engineering as claimed in claim 1, it is characterized in that, described marking pen penholder comprises second shell, the cap for brush, ink storage cotton core and fiber nib, and the head of described second shell engages with the described cap for brush, and afterbody engages with the other end of described connecting portion; The head of described fiber nib is rounded nose, the structure that the rounded diameter of the other end of described fiber nib diminishes gradually.

10. the multi-functional red blue lead mechanical pencil of engineering as described in as arbitrary in claim 1-9, it is characterized in that, described connecting portion comprises cylindroid and is located at the partition in the middle part of cylindroid, one end of described cylindroid engages with the afterbody of described the first stroke shell, the other end engages with the afterbody of described second shell, and the overall diameter of described partition is greater than the overall diameter of described cylindroid; The cross section of described the first stroke shell and second shell is ellipse; The cross section of described dop core storage tube and dop is ellipse.