CN207725092U - A kind of clipping chalk sleeve - Google Patents
A kind of clipping chalk sleeve Download PDFInfo
- Publication number
- CN207725092U CN207725092U CN201721233376.2U CN201721233376U CN207725092U CN 207725092 U CN207725092 U CN 207725092U CN 201721233376 U CN201721233376 U CN 201721233376U CN 207725092 U CN207725092 U CN 207725092U
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve
- card slot
- clamp arm
- button spindle
- 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 discloses a kind of clipping chalk sleeves, belong to daily teaching field, including be set to sleeve（1）Internal chalk seat（2）And card slot（3）, the chalk seat（2）And card slot（3）Between compressed spring is set（4）, the card slot（3）Button spindle is arranged in top（5）, the button spindle（5）With the sleeve（1）Between extension spring is set（6）, the sleeve（1）Top center setting with the button spindle（5）Corresponding circular hole（7）, the sleeve（1）Inside setting clamp arm（8）, the clamp arm（8）Pass through shaft（9）And cantilever（10）It is connected to the sleeve（1）On, the clamp arm（8）The card slot is stretched into upper arm one end（3）It is interior.The utility model is clipping chalk sleeve, not only avoids and is in direct contact chalk during using chalk and is endangered caused by skin, and is convenient and efficient when more renewing chalk, saves a large amount of classroom instruction times.
Description
Technical field
The utility model is related to a kind of daily teaching tools, more particularly, to a kind of chalk sleeve.
Background technology
There are easily broken, dirty hand, the bad factors such as hinder hand for chalk.It is difficult to grasp to exert oneself when writing since chalk is shorter,
Due to unbalance stress or stress is inconsistent that chalk is caused to easily snap off.Chalk dust in use can be infected on hand, to skin
There is stimulation, if hot summer days meet sweat solution, alkaline matter is generated, to the stimulation of skin with regard to bigger, because human skin is given birth to
The environment deposited is weak acid environment, destroys the basic living environment of skin under the effect of dust alkalinity in this way, and chalk dust makes
Skin becomes dry, coarse, and feels with itching, keeps human body uncomfortable, severe patient can cause acne, epifolliculitis, pyoderma, skin
Skin is chapped and trichomadesis, influences and disturb teacher's normal work and life.The appearance of chalk sleeve allows teacher and classmates to exist
Using will not be in direct contact chalk when chalk, but existing chalk sleeve adjusts chalk length or more renews chalk in use
When it is more complicated.
Application No. is 20162137337.8, Authorization Notice No. is that the Chinese patent of 206456127 U of CN discloses one kind
Chalk sleeve, including sheath, the sets of holes of sheath inside setting circular in cross-section further include adjustment cap, and adjustment cap includes circle shell-like
In the chalk seat of adjusting set bottom end, several gap slots, and gap slot length direction and tune is arranged in adjusting set top for adjusting set and gear
Section set axis is parallel, and several gap slots are circumferentially distributed along adjusting set, further includes round shell-like flexible rubber lagging, rubber sleeve outer diameter, set
Hole aperture is identical with adjusting set outer diameter, and rubber sleeve internal diameter and adjusting set internal diameter are identical as the chalk cross-sectional diameter of pre-installation, powder
Bottom end is fixed on by gap slot in adjustment cap, and mutually matched internal thread and outer spiral shell is respectively set in sets of holes and adjusting set outer wall
Line, and adjusting set is screwed onto sheath bottom end, rubber sleeve is sleeved on chalk top outer wall, and rubber sleeve outer wall is suppressed to form baffle ring, and keeps off
Ring is against sheath top.This chalk sleeve is simple in structure, and easy to adjust.But the chalk sleeve that the patent provides is when replacing chalk
There is still a need for chalk is in direct contact with hand, fail to prevent completely to be in direct contact with chalk, and replacement process is more complex, waste
Time in classroom.
Utility model content
In view of this, the purpose of this utility model is in view of the deficiencies of the prior art, a kind of clipping chalk sleeve is provided, is led to
The cooperation of the button spindle being arranged in cylinder, card slot, spring and clamp arm is crossed, realizes freely gripping and fixing to chalk, is saved
It is a large amount of times replaced and adjust chalk, convenient and efficient；Being in direct contact for skin and chalk is not only avoided when using chalk,
And when replacing chalk, skin will not be in direct contact with chalk, and it is safe and healthy.
In order to achieve the above objectives, the utility model uses following technical scheme：
A kind of clipping chalk sleeve, including sleeve, the sleeve inner setting chalk seat and card slot, the chalk seat and card
Compressed spring is set between slot, and button spindle is arranged in the card slot top, setting stretching bullet between the button spindle and the sleeve
Circular hole is arranged in the top center of spring, the sleeve, and the button spindle passes through the circular hole, the sleeve inner that clamp arm, institute is arranged
It states clamp arm to be connected on the sleeve by shaft and cantilever, clamp arm upper arm one end is stretched into the card slot.
Cantilever is arranged in the sleeve inner as a further improvement of the utility model, and shaft is arranged in the cantilevered distal end.
As a further improvement of the utility model, to be fixedly connected between the compressed spring and the chalk seat, institute
State between compressed spring and the card slot is to be fixedly connected.
The clamp arm is L-shaped structure as a further improvement of the utility model, and L-shaped corner is arranged and described turn
The corresponding axis hole of axis.
Multiple elastomer blocks are set on the inside of the underarm of the clamp arm as a further improvement of the utility model,.
The utility model has the beneficial effects that：
1, the degree that clamp arm folding is controlled by button spindle, card slot and shaft, when button spindle is pressed, card slot drives folder
Upper arm one end of arm moves down, and using lever principle, clamp arm is made to be rotated by fulcrum of shaft, to make the underarm of clamp arm
It opens, it can be achieved that the flexible modulation to chalk and replacement.
2, cantilever is arranged in sleeve inner, and shaft is arranged in cantilevered distal end, and shaft is corresponding with the axis hole in clamp arm, hangs
The setting of arm makes between clamp arm and sleeve there are suitable distance, provides rational space for clamp arm folding, meets clamp arm rotation
When space requirement.
3, chalk seat and compressed spring, are fixedly connected between card slot and compressed spring, avoid the spring when replacing chalk
It is fallen from sleeve with chalk seat, replaces chalk more convenient and quicker.
4, clamp arm is arranged to L-shaped structure, not only can guarantee the transmission direction of power, but also can rationally utilize space, has shortened sleeve
Length.
5, the setting of elastomer block can increase frictional force of the clamp arm to chalk, make the clamping chalk that clamp arm is more firm, when writing
Comfortable feel.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of clipping chalk sleeve embodiment of the utility model one.
Fig. 2 is the partial enlarged view of card slot 3（Front view）.
Fig. 3 is the partial enlarged view of card slot 3（Vertical view）.
Fig. 4 is a kind of structural schematic diagram of clipping chalk sleeve embodiment of the utility model two.
Sleeve 1, chalk seat 2, card slot 3, compressed spring 4, button spindle 5, extension spring 6, circular hole 7, clamp arm 8, shaft 9 are hanged
Arm 10, elastomer block 11, chalk 12, reinforcing rib 13, threaded hole 14.
Specific implementation mode
Below in conjunction with the accompanying drawings 1 and embodiment the utility model is further described.
Embodiment one
As shown in Figs. 1-3, a kind of clipping chalk sleeve, including sleeve 1,1 inside setting chalk seat 2 of the sleeve and card slot
3, compressed spring 4 is set between the chalk seat 2 and the card slot 3, and button spindle 5, the button spindle is arranged in 3 top of the card slot
Extension spring 6 is set between 5 and the sleeve 1, and circular hole 7 is arranged in the top center of the sleeve 1, and the button spindle 5 passes through institute
Circular hole 7 is stated, four clamp arm 8 are arranged in 1 internal symmetry of the sleeve, and the clamp arm 8 is connected to the set by shaft 9 and cantilever 10
On cylinder 1,8 upper arm one end of the clamp arm is stretched into the card slot 3.
To be threadedly coupled between the button spindle 5 and the card slot 3,3 center of top of card slot is equipped with threaded hole 14, conveniently presses
The installation of button bar 5 and extension spring 6.Reinforcing rib 13 there are four being symmetrical arranged between two disks up and down of the card slot 3, by two
It is separated out four slot positions between disk, keeps card slot and the cooperation of clamp arm upper arm one end freer and stable, the setting of reinforcing rib 13
The structural stability for enhancing card slot 3 is conducive to the cooperation of card slot and clamp arm upper arm accurate stable.
1 outer wall of proficiency hold set cylinder, thumb press lightly on button spindle 5 to the utility model when in use, and button spindle 5 drives
Card slot 3 moves together, and since upper arm one end of clamp arm 8 is stretched into card slot 3, the upper arm of the clamp arm 8 also moves therewith, and due to
The corner of L-shaped clamp arm 8 is provided with axis hole corresponding with the shaft 9 on the cantilever 10, and clamp arm 8 is connected to by shaft 9
On cantilever 10, clamp arm 8 is formed the L-shaped lever for fulcrum with shaft 9, so the underarm of clamp arm 8 is under the action of button spindle 5
It is flared out simultaneously.
Then it by the opening of one end alignment sleeve 1 of chalk 12, and is against on chalk seat 2, continues to move to chalk sleeve, make whole
A chalk all enters chalk sleeve, then thumb release button bar.At this moment, the extension spring 6 is in tensional state, the pressure
Contracting spring 4 is in compressive state, plays spring 4 and under stating the collective effect of compressed spring 4 in described stretch, the button spindle 5, card slot
3 and clamp arm 8 be all returned to original state, the underarm of the clamp arm 8 clamps chalk 12.
The elastomer block 11 can increase frictional force of 8 underarm of clamp arm to chalk 12, in compressed spring 4 and extension spring 6
Firmly clamp chalk 12 under effect, when writing will not shake, comfortable writing.
If needing to adjust 12 length of chalk for exposing sleeve 1 during use, only 1 open at one end of sleeve need to gently be resisted
Blackboard, button press bar 5 unclamp clamp arm 8, chalk 12 are adjusted to appropriate length, without being contacted with hand in adjustment process
Chalk 12, and it is easy to operate, save the time.
Embodiment two
As shown in figure 4, the present embodiment and embodiment one are essentially identical, the difference is that：The card slot 3 is replaced with sphere 15
The upper arm one end in generation, four L-shaped clamp arm 8 is disposed as the folding arm with 135 ° of angles, and folding arm one end is located at sphere lower part
And it is tangent with sphere.When thumb button press bar 5, sphere 15 applies folding arm the power of vertical folding arm, that is, pushes clamp arm 8
Upper arm 3 movement around the shaft, to make the underarm of clamp arm 8 open, when release button bar 5, then the underarm of clamp arm 8 is closed or clamping powder
Pen 12 realizes freely picking and placeing to chalk 12.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme should all cover in the right of the utility model.
Claims (1)
1. a kind of clipping chalk sleeve, including sleeve (1), the internal setting chalk seat (2) of the sleeve (1) and card slot (3), described
Compressed spring (4), card slot (3) the top setting button spindle (5), the sleeve are set between chalk seat (2) and card slot (3)
(1) top center setting circular hole (7), the button spindle (5) pass through the circular hole (7), the card slot (3) and the sleeve
(1) extension spring (6) is set between, it is characterised in that：Setting clamp arm (8), the clamp arm (8) pass through inside the sleeve (1)
Shaft (9) and cantilever (10) are connected on the sleeve (1), and described clamp arm (8) upper arm one end is stretched into the card slot (3)；Institute
State setting cantilever (10) inside sleeve (1), cantilever (10) the end setting shaft (9)；It is set on the inside of the underarm of the clamp arm (8)
Set multiple elastomer blocks (11)；To be fixedly connected between the compressed spring (4) and the chalk seat (2), the compressed spring (4)
It is to be fixedly connected between the card slot (3)；The clamp arm (8) is " L " shape structure, and " L " shape corner is arranged and described turn
The corresponding axis hole of axis (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233376.2U CN207725092U (en) | 2017-09-25 | 2017-09-25 | A kind of clipping chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233376.2U CN207725092U (en) | 2017-09-25 | 2017-09-25 | A kind of clipping chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207725092U true CN207725092U (en) | 2018-08-14 |
Family
ID=63090713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721233376.2U Expired - Fee Related CN207725092U (en) | 2017-09-25 | 2017-09-25 | A kind of clipping chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207725092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823093A (en) * | 2019-02-27 | 2019-05-31 | 张慧利 | A kind of multi-action computer educational facilities and its application method |
| CN111180912A (en) * | 2020-01-15 | 2020-05-19 | 深圳供电局有限公司 | Accumulator chuck |
-
2017
- 2017-09-25 CN CN201721233376.2U patent/CN207725092U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823093A (en) * | 2019-02-27 | 2019-05-31 | 张慧利 | A kind of multi-action computer educational facilities and its application method |
| CN111180912A (en) * | 2020-01-15 | 2020-05-19 | 深圳供电局有限公司 | Accumulator chuck |
| CN111180912B (en) * | 2020-01-15 | 2022-03-22 | 深圳供电局有限公司 | Accumulator chuck |
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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: 20180814 Termination date: 20190925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |