CN208584964U - Chalk component - Google Patents
Chalk component Download PDFInfo
- Publication number
- CN208584964U CN208584964U CN201721649871.1U CN201721649871U CN208584964U CN 208584964 U CN208584964 U CN 208584964U CN 201721649871 U CN201721649871 U CN 201721649871U CN 208584964 U CN208584964 U CN 208584964U
- Authority
- CN
- China
- Prior art keywords
- chalk
- installation cavity
- side wall
- grasping
- guide part
- 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
Links
Abstract
The utility model provides a kind of chalk component, including sheath and chalk, sheath includes grasping shell, protective shell and guide part, the protective shell includes the mounting portion interconnected and protection portion, the first installation cavity is formed in the grasping shell, the second installation cavity is formed in the protection portion, the mounting portion is arranged in first installation cavity, so that first installation cavity is connected to and coaxial with second installation cavity, one end of the chalk is arranged in second installation cavity, at least part of the guide part is arranged in first installation cavity, and the guide part can guide the chalk mobile relative to the protection portion, so that the other end of the chalk protrudes from second installation cavity or retracts second installation cavity.When the chalk component is in non-writing state, it can protect chalk and do not broken, when the chalk component is in writing state, manpower grasps the grasping shell, does not contact directly, is good for your health with chalk.
Description
Technical field
The utility model relates to educational aid fields, and in particular, to a kind of chalk component.
Background technique
Chalk is a kind of common educational aid.But since chalk is manually to hold chalk-writing made of gypsum
When, the gypsum on chalk can be sticked on manpower, and certain corrosion is caused to skin, is unfavorable for human health.
Therefore, how to prevent the gypsum on chalk to be sticked on manpower becomes this field technical problem urgently to be resolved.
Utility model content
The purpose of this utility model is to provide a kind of chalk components, when being write using the chalk component, stone
Cream is not bound on manpower.
To achieve the goals above, the utility model provides a kind of chalk component, and the chalk component includes sheath and powder
Pen, wherein the sheath includes grasping shell, protective shell and guide part, and the protective shell includes the mounting portion interconnected and guarantor
Shield portion is formed with the first installation cavity in the grasping shell, and the second installation cavity, the mounting portion setting are formed in the protection portion
In first installation cavity, so that first installation cavity is connected to and coaxial with second installation cavity, the chalk
One end is arranged in second installation cavity, and at least part of the guide part is arranged in first installation cavity, and institute
Stating guide part can guide the chalk mobile relative to the protection portion, so that the other end of the chalk is from described second
Second installation cavity is protruded or retracted in installation cavity.
Preferably, the shell that grasps includes installing bottom wall and the grasping side wall around the installation bottom wall setting；
External screw thread is formed on the outer surface of the mounting portion, second installation cavity penetrates through the mounting portion and the guarantor
Shield portion；
The chalk component further includes support column and collet, and the support column is arranged on the installation bottom wall, and is inserted into
In second installation cavity, the folder is set in second installation cavity, and the bottom of the collet and the support column are solid
One end of fixed connection, the chalk is arranged in the collet；
The guide part includes guiding bottom and the guiding wall around guidance bottom setting, is provided with and draws on the guidance bottom
Guide hole, the mounting portion passes through the guide hole and the grasping side wall cooperates, and the edge at the guidance bottom can be along described
External screw thread cooperation on mounting portion, is formed with annular groove on the outer surface of the guiding wall, on the inner surface for grasping side wall
It is provided with the annular protrusion with annular groove cooperation, the annular protrusion is located in the annular groove, and the grasping side wall
It can be rotated relative to the guide part around the axis of the guide part.
Preferably, internal screw thread is formed on the inner surface for grasping side wall, on the internal screw thread and the mounting portion
External screw thread cooperation.
Preferably, the collet may include collet ontology, the chalk receiving hole and formation for being formed in collet ontology one end
In the support column receiving hole of the collet ontology other end, the chalk is arranged in institute's chalk receiving hole, the support column
End is arranged in the support column receiving hole.
Preferably, the grasping side wall includes the first side wall and second sidewall, the first side wall and the installation bottom wall
It is fixedly connected, the second sidewall and the first side wall are detachably connected.
Preferably, the chalk component further includes rubber band, and the rubber band is set in outside the grasping side wall, will
The first side wall is fixedly connected with the second sidewall.
Preferably, it is provided with rubber band slot on the outer surface for grasping side wall, the rubber band is located in the rubber band slot.
When chalk component is in non-writing state, chalk is retracted in the second installation cavity of protection portion.In this state
In, even if the chalk component falls will not break chalk on the ground, so as to avoid chalk from falling caused by waste.
When needing to be write using the chalk component, need the writing end of chalk using guide part (that is, above
The other end) it is guided out from the second installation cavity of protective shell.User grasps the grasping shell of sheath when writing, from
And can be to avoid being stained with gypsum powder on hand, it and then can be corroded to avoid hand, be conducive to be write using chalk for a long time
The health of staff (for example, teacher).
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is schematic diagram when chalk component provided by the utility model is in non-writing state；
Fig. 2 is schematic diagram when chalk component provided by the utility model is in writing state；
Fig. 3 is the integrated morphology schematic diagram of the first side wall for grasping shell, installation bottom wall and support column；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the schematic diagram for grasping the second sidewall of shell；
Fig. 6 is the top view of Fig. 5.
Description of symbols
100: sheath 110: grasping shell
120: protective shell 121: mounting portion
122: protection portion 130: guide part
140: support column 150: collet
160: rubber band 111: installation bottom wall
112: grasping side wall 1121: the first side wall
1122: second sidewall 112a: annular protrusion
112b: rubber band slot
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
As depicted in figs. 1 and 2, the utility model provides a kind of chalk component, and the chalk component includes sheath 100 and powder
Pen 200, wherein sheath 100 includes grasping shell 110, protective shell 120 and guide part 130.Protective shell 120 includes interconnecting
Mounting portion 121 and protection portion 122 grasp in shell 110 and are formed with the first installation cavity.The second installation cavity is formed in protection portion 122,
Mounting portion 121 be arranged in first installation cavity so that first installation cavity be connected to second installation cavity and together
Axis.One end of chalk 200 is arranged in second installation cavity, and at least part setting of guide part 130 is in first peace
In behaveing affectedly, and guide part 130 can guide chalk 200 mobile relative to the protection portion so that the other end of chalk 200 from
Second installation cavity is protruded or retracted in second installation cavity.
There are two types of working conditions for chalk component tool provided by the utility model: in the non-writing state and Fig. 2 in Fig. 1
Writing state.
When chalk component is in the non-writing state in Fig. 1, chalk 200 is retracted in the second installation cavity of protection portion 122
In.In such state, even if the chalk component falls will not break chalk 200 on the ground, so as to avoid chalk from falling
Waste caused by falling.
When needing to be write using the chalk component, need the writing end of chalk using guide part 130 (on that is,
The other end described in the text) it is guided out from the second installation cavity of protective shell 120, as shown in Figure 2.User grabs when writing
The grasping shell 110 of sheath 100 is held, so as to avoid being stained with gypsum powder on hand, and then can be corroded, be conducive to avoid hand
The health of the staff (for example, teacher) write for a long time using chalk.
In the present invention, the specific structure of guide part 130 is not particularly limited, as long as chalk can be guided
200 is mobile relative to protective shell 120.It as an implementation, can be using chalk 200 is fixed, utilizes guiding
Part 130 realizes the transformation of chalk component operation state in a manner of guiding protective shell 120 mobile；As another embodiment,
Can it is fixed using protective shell 120, in such a way that guide part 130 guides protective shell chalk 200 mobile realize chalk group
The transformation of part working condition.
As a kind of preferred embodiment of the utility model, as shown in Figures 1 and 2, grasping shell 110 includes installation bottom
Wall 111 and the grasping side wall 112 being arranged around the installation bottom wall 111.
Correspondingly, external screw thread is formed on the outer surface of mounting portion 121, second installation cavity penetrates through 121 He of mounting portion
Protection portion 122.
As shown in Figures 1 and 2, the chalk component further includes support column 140 and collet 150, and the setting of support column 140 exists
It installs on bottom wall 111, and is inserted into second installation cavity, collet 150 is arranged in second installation cavity, collet 150
Bottom is fixedly connected with support column 140, and one end of chalk 200 is arranged in the collet.
Guide part 130 includes guidance bottom 131 and the guiding wall 132 around the guidance bottom 131 setting, guides and sets on bottom 131
It is equipped with guide hole, mounting portion 121, which passes through the guide hole and grasps side wall 112, to be cooperated, and guides the edge at bottom 131 can be along institute
The external screw thread cooperation on mounting portion is stated, is formed with annular groove on the outer surface of guiding wall 132.On the inner surface for grasping side wall 112
It is provided with the annular protrusion 112a with annular groove cooperation, annular protrusion 112a is located in the annular groove, and grasps side wall
112 can rotate relative to guide part 130 around the axis of the guide part 130.
In this embodiment, after being provided with support column 140, it can make entire sheath 100 that there is longer length, i.e.,
Just chalk 200, which is used, only remains shorter one section, has enough grasping length, still so as to be user-friendly for book
It writes.
The chalk component how is made to be changed into Fig. 2 by the non-writing state in Fig. 1 below with reference to Fig. 1 and Fig. 2 explanation
Middle writing state.
When chalk component is in state in Fig. 1, user can be pinched with a hand grasps shell 110, and another hand pinches
Guide part 130, then rotates one of them.Since the annular groove of guide part 130 and the annular protrusion 112a of grasping shell 110 are mutual
Therefore cooperation does not generate the relative movement of axis direction, this allows for protective shell 120 between guide part 130 and grasping shell 110
Mounting portion 121 on external screw thread guidance bottom 131 edge guidance under move down, and drive entire protective shell 120 to
Lower movement.It stops rotating when the other end of chalk 200 protrudes enough from protective shell 120.
When using finishing, it can be reversed rotation and grasping shell 110 and guide part 130, so that protective shell 120 is at guidance bottom 130
Under the action of stretched out from the first installation cavity, and chalk 200 is protected.
The service life of thread failure, extension sheath in order to prevent, it is preferable that can be in the inner surface for grasping side wall 112
External screw thread on upper setting internal screw thread, the internal screw thread and the mounting portion cooperates.It is arranged on the inner surface for grasping side wall 112
Internal screw thread can also prevent chalk from retracting in protective shell 120.
In the present invention, the specific structure of collet 150 is not particularly limited, for example, as shown in Figures 1 and 2,
Collet 150 may include collet ontology, the chalk receiving hole for being formed in collet ontology one end and to be formed in the collet ontology another
The support column receiving hole of one end, the chalk are arranged in institute's chalk receiving hole, and the end of the support column is arranged in the branch
In dagger receiving hole.
In the present invention, to how to assemble sheath 100, there is no special requirements.Preferably, side wall 112 is grasped to wrap
Include the first side wall 1121 (referring to Fig. 3, Fig. 4) and second sidewall 1122 (referring to Fig. 5, Fig. 6), the first side wall 1121 and installation bottom wall
111 are fixedly connected, and second sidewall 1122 and the first side wall 1121 are detachably connected.
First guide part 130, protective shell 120 are mounted on the first side wall 1121, then by second sidewall 1122 and first
Side wall 11121 is fixedly connected.
In the present invention, not special to how to be fixedly connected with the first side wall 11121 second sidewall 1122
It is required that in order to reduce cost, it is preferable that as depicted in figs. 1 and 2, the chalk component further includes rubber band 160, the rubber band
160 are set in outside grasping side wall 112, and the first side wall is fixedly connected with the second sidewall.
Rubber band presses against hand in order to prevent, it is preferable that grasps and is provided with rubber band slot 112b, rubber on the outer surface of side wall 112
Muscle 160 is located in rubber band slot 112b.
In order to obtain better writing experience, it is preferable that silica gel sheath can also be arranged in the outside for grasping side wall 1122.
It is understood that embodiment of above is merely to illustrate that the principles of the present invention and uses exemplary
Embodiment, however the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case where the spirit and essence of utility model, various changes and modifications can be made therein, these variations and modifications are also considered as this reality
With novel protection scope.
Claims (7)
1. a kind of chalk component, the chalk component includes sheath and chalk, which is characterized in that the sheath include grasp shell,
Protective shell and guide part, the protective shell include the mounting portion interconnected and protection portion, are formed with first in the grasping shell
Installation cavity is formed with the second installation cavity in the protection portion, and the mounting portion is arranged in first installation cavity, so that institute
The first installation cavity to be stated to be connected to second installation cavity and coaxial, one end of the chalk is arranged in second installation cavity,
At least part of the guide part is arranged in first installation cavity, and the guide part can guide the chalk opposite
It is mobile in the protection portion, so that the other end of the chalk protrudes from second installation cavity or retracts described second
Installation cavity.
2. chalk component according to claim 1, which is characterized in that the grasping shell includes installation bottom wall and surround described
The grasping side wall of bottom wall setting is installed；
External screw thread is formed on the outer surface of the mounting portion, second installation cavity penetrates through the mounting portion and the protection
Portion；
The chalk component further includes support column and collet, and the support column is arranged on the installation bottom wall, and described in insertion
In second installation cavity, the folder is set in second installation cavity, the bottom of the collet and the fixed company of the support column
It connects, one end of the chalk is arranged in the collet；
The guide part includes guiding bottom and the guiding wall around guidance bottom setting, is provided with guidance on the guidance bottom
Hole, the mounting portion passes through the guide hole and the grasping side wall cooperates, and the edge at the guidance bottom can be along the peace
External screw thread in dress portion cooperates, and annular groove is formed on the outer surface of the guiding wall, is set on the inner surface for grasping side wall
It is equipped with the annular protrusion with annular groove cooperation, the annular protrusion is located in the annular groove, and the grasping side wall energy
Enough axis relative to the guide part around the guide part rotate.
3. chalk component according to claim 2, which is characterized in that be formed with interior spiral shell on the inner surface for grasping side wall
External screw thread on line, the internal screw thread and the mounting portion cooperates.
4. chalk component according to claim 3, which is characterized in that the collet may include collet ontology, be formed in folder
It covers the chalk receiving hole of ontology one end and is formed in the support column receiving hole of the collet ontology other end, the chalk setting
In institute's chalk receiving hole, the end of the support column is arranged in the support column receiving hole.
5. chalk component as claimed in any of claims 2 to 4, which is characterized in that the grasping side wall includes the
One side wall and second sidewall, the first side wall are fixedly connected with the installation bottom wall, the second sidewall and first side
Wall is detachably connected.
6. chalk component according to claim 5, which is characterized in that the chalk component further includes rubber band, the rubber
Rubber band is set in outside the grasping side wall, and the first side wall is fixedly connected with the second sidewall.
7. chalk component according to claim 6, which is characterized in that be provided with rubber band on the outer surface for grasping side wall
Slot, the rubber band are located in the rubber band slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649871.1U CN208584964U (en) | 2017-12-01 | 2017-12-01 | Chalk component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649871.1U CN208584964U (en) | 2017-12-01 | 2017-12-01 | Chalk component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208584964U true CN208584964U (en) | 2019-03-08 |
Family
ID=65532274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721649871.1U Expired - Fee Related CN208584964U (en) | 2017-12-01 | 2017-12-01 | Chalk component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208584964U (en) |
-
2017
- 2017-12-01 CN CN201721649871.1U patent/CN208584964U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 Termination date: 20191201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |