CN209738609U

CN209738609U - Multi-core pen

Info

Publication number: CN209738609U
Application number: CN201920179874.6U
Authority: CN
Inventors: 陈照毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2019-12-06
Anticipated expiration: 2029-02-01

Abstract

The utility model discloses a multi-core pen, which comprises a pencil core, wherein the pencil core at least comprises an automatic pencil mechanism, and the pencil core comprises a core tube and a core spitting unit fixed at the lower end of the core tube; the pen shell is provided with a sliding groove, and the lower end of the pen shell is provided with an opening extending out of the propelling pencil mechanism; the switching unit comprises a sliding buckle which is installed to the sliding groove in a sliding mode. The utility model discloses press the in-process that the slip was detained downwards, propelling pencil mechanism downstream to the direction piece that sets up through the slope upwards supports and tells the core unit, and sets up the space that supplies the lead activity, makes the lead of telling core unit lower extreme can not avoid the lead rupture with the inner wall contact of pen shell.

Description

Multi-core pen

Technical Field

The utility model belongs to office stationery field especially relates to a multicore pen.

Background

When a professional draws a drawing by hand, various drawing tools are often inconvenient. Due to the requirement of workpiece expression, various types of pencils such as HB, 2B, 2H and the like are used. The common pencils need to be cut into different thicknesses according to drawing requirements to meet the requirements of various line types, the energy of drawing personnel needs to be wasted, the automatic drawing pencils in the market are high in price, one type of drawing pencil can only be used as a pencil lead, and therefore a plurality of types of drawing pencils need to be purchased for drawing, and the use of the drawing pencils needs to be frequently changed, so that the use is troublesome. The utility model discloses a to this problem utility model application number 201620252495.1 discloses a many refill automatic drawing pencil, including being used for holding a body of a pen, a plurality of root of a pen and being used for loading and spit the automatic core subassembly of spitting of refill and being used for spitting the switching structure that switches between the core subassembly automatically, be provided with the chamber that holds that is used for holding automatic core subassembly of spitting on the body of a pen, spit the core subassembly automatically and insert and establish and hold the intracavity, the switching structure includes that a plurality of switches the thread slipping. The problem that exists in this many writing cores automatic drawing pencil uses is that spit the core subassembly in-process downwards automatically, spit the core subassembly lower extreme automatically and expose the lead and can contact with toper structure, lead to the rupture of lead, influence use experience to the action that the lead was loaded in the change is also comparatively troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a multi-core pen.

The utility model provides a technical scheme that above-mentioned problem adopted is:

A multi-core pen comprises

the pencil lead at least comprises a propelling pencil mechanism, the pencil lead comprises a core tube and a core spitting unit fixed at the lower end of the core tube,

A pen shell, a sliding groove is arranged on the pen shell, an opening extending out of the propelling pencil mechanism is arranged at the lower end of the pen shell,

A switching unit including a sliding buckle slidably mounted to the sliding groove,

The method is characterized in that:

The core spitting unit is provided with a stretching section stretching out of the opening and a positioning section positioned relative to the pen shell, the positioning section is in a round table shape,

A plurality of guide sheets are fixed on the inner wall of the pen shell, a spacing groove for inserting the core spitting unit is arranged between the guide sheets, the outer ends of the guide sheets are fixed on the inner wall of the pen shell, the guide sheets are arranged in a high-outer-part and low-inner-part manner, the width of the spacing groove is smaller than the outer diameter of the positioning section and larger than the outer diameter of the extending section,

The lower end of the inner wall of the pen shell is fixedly provided with a plurality of positioning pieces, a space for the movement of the lead is arranged between every two adjacent positioning pieces, the outer ends of the positioning pieces are fixed on the inner wall of the pen shell, and the inner ends of the positioning pieces are inclined plane structures used for abutting against the outer wall of the positioning section.

In the process of pressing the sliding buckle downwards, the automatic pencil mechanism moves downwards, and the guide piece arranged obliquely upwards supports the lead-spitting unit and is provided with a space for the movement of the lead, so that the lead at the lower end of the lead-spitting unit cannot be contacted with the inner wall of the pencil shell, and the lead is prevented from being broken; and after the extension section extends out of the opening, the extension section is guided to abut against the positioning section, the extension section is not easy to swing, and the stability of the pen core in the using process is improved.

Further, as preferred, the pen shell includes casing and lower casing, the casing is fixed on last casing through screw-thread fit's tightening down, the lower extreme of going up the casing is fixed with the board of sealing, seal and seted up the perforation on the board, it is equipped with the stand pipe to perforate to insert, the fixed slip of upper end of stand pipe is detained, the cover is equipped with the pressure spring on the stand pipe, the lower extreme of pressure spring supports the upper end at the shrouding, the upper end of pressure spring supports and buckles in the slip, the lower extreme of stand pipe is fixed with flexible hose, the spliced eye that is used for inserting the refill upper end is offered. The lower end of the refill moves from outside to inside and is inserted into the opening at the lower end of the pen shell, and the elastic hose can bend adaptively. By adopting the structure, the shell is unscrewed, the refill is pulled out, a newly replaced refill is inserted, and the shell is unscrewed again, so that the refill can be replaced, and the refill can be more conveniently replaced; after the mechanical pencil mechanism is pulled off and the lead is put in from the upper end of the core tube, the mechanical pencil mechanism is inserted into the elastic hose again, and the shell is screwed up and down again, so that the replacement operation of the lead can be realized, and the operation of supplementing the lead by the mechanical pencil mechanism is more convenient.

preferably, a positioning barrel is fixed at the upper end of the interior of the pen shell, and a clamping piece clamped into the positioning barrel is fixed at the upper end of the sliding buckle. The main clamping sliding buckle is realized by adopting the positioning cylinder, the structure is simple, and the die sinking manufacturing cost is low.

Further, preferably, 3-4 guide pieces are fixed on the inner wall of the pen shell, and 3-4 positioning pieces are fixed on the inner wall of the pen shell.

Further, preferably, the elastic hose is a silicone hose, a plastic hose or a spring.

The core spitting principle of the core spitting unit is realized by adopting a conventional core spitting structure on the market, or the following structure is adopted: as shown in fig. 7, the core discharging unit includes a core casing, a core casing pressure spring, an extending section and a positioning section, the core pipe is inserted into the core casing, the core casing pressure spring is disposed between the core pipe and the core casing, an upper end of the core casing pressure spring abuts against the core pipe, a lower end of the core casing pressure spring abuts against the core casing, a core hole is formed in the core casing, a plurality of elastic pieces for clamping the lead core are fixed at a lower end of the core pipe, the elastic pieces penetrate through the core hole, after the positioning section of the core casing abuts against the positioning piece, the core pipe continues to be pressed downwards, the elastic pieces of the core pipe move downwards relative to the core hole, a distance between the elastic pieces is increased, the lead core is not clamped between the elastic pieces, and the lead automatically slides downwards due to gravity, so that an effect of automatically.

In the multi-core pen, the elastic hose of the elastic hose can be completely inserted into the mechanical pencil mechanisms, and the mechanical pencil mechanisms are different in lead type, so that the multi-core pen can be switched before various lead types, and the elastic hose can also be inserted into a pen refill or a ball-point pen refill to realize the switching of the pencil, the ball-point pen and the pen refill, as shown in fig. 8.

Compared with the prior art, the utility model, have following advantage and effect: in the process of pressing the sliding buckle downwards, the automatic pencil mechanism moves downwards, and the guide piece arranged obliquely upwards supports the lead-spitting unit and is provided with a space for the movement of the lead, so that the lead at the lower end of the lead-spitting unit cannot be contacted with the inner wall of the pencil shell, and the lead is prevented from being broken; and after the extension section extends out of the opening, the extension section is guided to abut against the positioning section, the extension section is not easy to swing, and the stability of the pen core in the using process is improved.

drawings

fig. 1 is a schematic structural diagram of a multi-core pen according to an embodiment of the present invention.

Fig. 2 is a schematic sectional structure diagram of a multi-core pen according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a switching unit according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an elastic hose according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of the lower housing at a-a in fig. 2 according to the embodiment of the present invention.

fig. 6 is a cross-sectional view of the lower housing at B-B in fig. 2 according to the embodiment of the present invention.

Fig. 7 is a schematic structural view of a core spitting unit according to an embodiment of the present invention.

fig. 8 is a schematic sectional view of a multi-nib pen with a mechanical pencil mechanism and a refill according to an embodiment of the present invention.

Numbering in the figures: the mechanical pencil mechanism 1, the core tube 11, the core spitting unit 12, the extension section 121, the positioning section 122, the core case 123, the core case pressure spring 124, the core hole 125, the elastic piece 126, the lead 127, the upper case 21, the lower case 22, the sliding groove 23, the opening 24, the positioning cylinder 25, the clamping piece 26, the guide piece 27, the spacing groove 28, the positioning piece 29, the space 210 for the lead to move, the inner end 211 of the positioning piece, the sealing plate 212, the perforation 213, the sliding buckle 31, the guide tube 32, the pressure spring 33, the elastic hose 34, the inserting hole 35, and the refill 4

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

As shown in fig. 1 to 7, the multi-core pen includes a pen core, a pen shell and a switching unit. The pencil lead at least comprises a mechanical pencil mechanism 1, the pencil lead comprises a core tube 11 and a lead spitting unit 12 fixed at the lower end of the core tube 11, the lead spitting principle of the lead spitting unit 12 is realized by adopting a conventional lead spitting structure on the existing market, it needs to be noted that the lead spitting unit 12 is provided with a stretching section 121 stretching out of a hole 24 and a positioning section 122 positioned relative to a pencil shell, the positioning section 122 is in a circular truncated cone shape, the pencil shell is provided with a sliding groove 23, the lower end of the pencil shell is provided with the hole 24 stretching out of the mechanical pencil mechanism 1, a switching unit comprises a sliding buckle 31 slidably mounted to the sliding groove 23, the upper end inside the pencil shell is fixed with a positioning barrel 25, and the upper end of the sliding buckle 31 is fixed with a clamping. The positioning cylinder 25 is adopted to realize the main clamping sliding buckle 31, the structure is simple, and the die sinking manufacturing cost is low. When the slider 31 is locked into the positioning cylinder 25 (as shown in fig. 3), the slider 31 still has a stroke margin sliding downward relative to the sliding groove 23, so that the lead 127 can be ejected after the core ejecting unit 12 pushes the slider 31.

as shown in fig. 5, four guide pieces 27 are fixed on the inner wall of the pen casing, a spacing groove 28 for inserting the core spitting unit 12 is arranged between the guide pieces 27, the outer end of the guide piece 27 is fixed on the inner wall of the pen casing, the guide pieces 27 are arranged in a high-outer-part and low-inner-part manner, and the width of the spacing groove 28 is smaller than the outer diameter of the positioning section 122 and larger than the outer diameter of the extending section 121.

as shown in fig. 6, a plurality of positioning pieces 29 are fixed at the lower end of the inner wall of the pen casing, a space 210 for the movement of the lead is provided between adjacent positioning pieces 29, the outer ends of the positioning pieces 29 are fixed on the inner wall of the pen casing, and the inner ends 211 of the positioning pieces are inclined structures for abutting against the outer wall of the positioning section 122.

The pen shell comprises an upper shell 21 and a lower shell 22, the lower shell 22 is screwed and fixed on the upper shell 21 through thread fit, a sealing plate 212 is fixed at the lower end of the upper shell 21, a perforation 213 is formed in the sealing plate 212, a guide pipe 32 is inserted into the perforation 213, a sliding buckle 31 is fixed at the upper end of the guide pipe 32, a pressure spring 33 is sleeved on the guide pipe 32, the lower end of the pressure spring 33 supports against the upper end of the sealing plate, the upper end of the pressure spring 33 supports against the sliding buckle 31, an elastic hose 34 is fixed at the lower end of the guide pipe 32, and a plug hole 35 used for inserting the upper end of a pen refill is formed in the lower. The lower end of the refill moves from outside to inside and is inserted into the opening 24 at the lower end of the pen shell, and the elastic hose 34 can be bent adaptively. By adopting the structure, the replacement operation of the refill can be realized by unscrewing the shell 22, pulling out the refill, inserting a new refill and unscrewing the shell 22 again, so that the replacement operation of the refill is more convenient; after the mechanical pencil mechanism 1 is pulled out, the lead 127 is put into the holder 11 from the upper end thereof, the mechanical pencil mechanism 1 is inserted into the elastic tube 34 again, and the housing 22 is screwed up and down again, so that the replacement operation of the lead 127 can be realized, and the operation of replenishing the lead 127 by the mechanical pencil mechanism 1 is more convenient. The elastic hose 34 is a silicone hose, a plastic hose or a spring.

the core discharge principle of the core discharge unit 12 of the present embodiment is realized by using a commercially available core discharge structure, and may also be realized by using the following structure: as shown in fig. 7, the core discharging unit 12 includes a core housing 123, a core housing compression spring 124, an extending section 121, and a positioning section 122, which are located on the core housing 123, the core tube 11 is inserted into the core housing 123, the core housing compression spring 124 is disposed between the core tube 11 and the core housing 123, an upper end of the core housing compression spring 124 abuts against the core tube 11, a lower end of the core housing compression spring 124 abuts against the core housing 123, a core hole 125 is formed in the core housing 123, a plurality of elastic pieces 126 for clamping the lead 127 are fixed at a lower end of the core tube 11, the elastic pieces 126 penetrate through the core hole 125, when the positioning section 122 of the core housing 123 abuts against the positioning piece 29, the core tube 11 is continuously pressed downward, the elastic pieces 126 of the core tube 11 move downward relative to the core hole 125, a distance between the elastic pieces 126 increases, the lead 127 is not clamped between the elastic pieces 126, and the lead 127 automatically slides downward due to gravity, thereby.

In the multi-core pen of the embodiment, the elastic hose 34 of the elastic hose 34 can be fully inserted into the mechanical pencil mechanism 1, and the mechanical pencil mechanisms 1 use different types of lead 127, so that the multi-core pen can be switched before various types of lead 127, and the elastic hose 34 can also be inserted into the refill 4 or a ball-point pen refill, so as to realize the switching of functions of the pencil, the ball-point pen and the fountain pen, as shown in fig. 8.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. a multi-core pen comprises

The method is characterized in that:

2. the multi-core pen of claim 1, wherein: the pen shell comprises an upper shell and a lower shell, the lower shell is screwed and fixed on the upper shell through thread fit, the lower end of the upper shell is fixed with a sealing plate, a through hole is formed in the sealing plate, a guide pipe is inserted in the through hole, the upper end of the guide pipe is fixed to slide and buckled, a pressure spring is sleeved on the guide pipe, the lower end of the pressure spring supports the upper end of a sealing plate, the upper end of the pressure spring supports the sliding and buckled, an elastic hose is fixed to the lower end of the guide pipe, a plugging hole used for inserting the upper end of a pen core is formed in the lower end of the elastic hose, the lower end of the pen core moves from outside to inside and inserts the opening hole.

3. The multi-core pen of claim 1, wherein: a positioning barrel is fixed at the upper end inside the pen shell, and a clamping piece clamped inside the positioning barrel is fixed at the upper end of the sliding buckle.

4. The multi-core pen of claim 1, wherein: 3-4 guide pieces are fixed on the inner wall of the pen shell, and 3-4 positioning pieces are fixed on the inner wall of the pen shell.

5. The multi-core pen of claim 2, wherein: the elastic hose is a silica gel hose, a plastic hose or a spring.