CN109318623A - A kind of Semi-automatic chalk cover - Google Patents
A kind of Semi-automatic chalk cover Download PDFInfo
- Publication number
- CN109318623A CN109318623A CN201811376201.6A CN201811376201A CN109318623A CN 109318623 A CN109318623 A CN 109318623A CN 201811376201 A CN201811376201 A CN 201811376201A CN 109318623 A CN109318623 A CN 109318623A
- Authority
- CN
- China
- Prior art keywords
- chalk
- slot
- sliding
- sleeve ontology
- block
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/016—Holders for crayons or chalks
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of Semi-automatic chalk covers.Advantages of the present invention: fixed ring is first pushed when using chalk sleeve, fixed ring is set to leave grip block, grip block is opened, it is inserted into chalk, fixed ring fixed clamp block is pushed later, chalk is fixed in chalk sleeve ontology, chalk sleeve ontology is caught when use, when being write from the chalk of grip block extension, push catch bar, connector drives fixed ring mobile at this time, fixed ring is set to leave aid block, aid is fast to be separated, chalk can normally stretch out, only need one-handed performance, and fixed ring is driven to leave grip block while promotion, operating procedure is few, it is high-efficient, and then improve efficiency of attending class.
Description
Technical field
The present invention relates to teaching equipment field, more particularly to a kind of Semi-automatic chalk cover.
Background technique
Chalk used at present is very fragile, and teacher easily snaps off when writing, and inconvenience is write, and the chalk that fractures can be made
At more wastes, not environmentally, current chalk sleeve needs first to open, makes chalk when adjusting the position of chalk in chalk sleeve
It can be slid in chalk sleeve, adjust the position of chalk, turn off the fixed chalk of chalk sleeve, operating procedure is excessive, is unfavorable for imparting knowledge to students.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of hemi-automatic chalk easy to operate
Set.
To achieve the above object, the present invention provides the following technical scheme that a kind of Semi-automatic chalk cover, includes: chalk
Ontology, the hollow setting of chalk sleeve ontology are covered, chalk sleeve ontology one end is equipped with the axial grip block being circumferentially distributed,
Several grip blocks are flexible, the chalk sleeve ontology be equipped with sliding connection fixed ring, the chalk sleeve ontology it is another
One end is equipped with catch bar, and the catch bar is for pushing chalk, and the chalk sleeve ontology is equipped with connector, and the connector connects
Fixed ring and catch bar are connect, when catch bar pushes chalk, fixed ring sliding.
As a further improvement of the present invention, the connector includes pushing block, follower lever and connecting rope, the promotion
Block and follower lever sliding are connected on chalk sleeve ontology, and the catch bar offers connecting hole away from the end of chalk sleeve ontology, institute
It states connecting rope to be fixedly connected across connecting hole one end with follower lever, the other end is fixedly connected with pushing block, and the follower lever is backwards
One end of connecting rope is fixedly connected with fixed ring, and the chalk sleeve ontology offers the first sliding groove and second on along its length
Sliding groove, in follower lever sliding the first sliding groove of connection, the pushing block sliding is connected in the second sliding groove, and described the
Be equipped with conflict block in one sliding groove, be equipped with the first spring between the follower lever and conflict block, one end of first spring with
Follower lever is inconsistent, and the other end is inconsistent with conflict block.
As a further improvement of the present invention, the second limiting slot is offered on the cell wall of second sliding groove, it is described to push away
Motion block is equipped with the second limited block, and second limited block is embedded in the second limiting slot to be connected with the sliding of the second limiting slot.
As a further improvement of the present invention, the side of the pushing block towards catch bar offers the arc pushed for thumb
Promotion face.
As a further improvement of the present invention, the chalk sleeve ontology is equipped with gripping ring backwards to the side of pushing block, described
Gripping ring is fixed on chalk sleeve ontology and passes through for index finger.
As a further improvement of the present invention, the first limit plate, the promotion are unidirectionally hinged in the chalk sleeve ontology
Bar includes outer bar and interior bar, and the connecting hole is provided in outer bar, and the outer bar offers sliding slot, the interior bar sliding connection
In sliding slot, the interior bar is spaced along its length opens up several limit holes, offers reply along its length in the interior bar
Slot, limit hole are connected to slot is replied, and the second limit plate is unidirectionally hinged on the cell wall of the sliding slot.
As a further improvement of the present invention, it is offered along its length in the chalk sleeve ontology and pushes slot and installation
Separately, the outer bar is equipped with the second locating piece for slot, the mounting groove and promotion slot, and the second locating piece sliding is connected to
It pushing in slot, described push offers at least two and is parallel to each other and the regulating tank vertical with slot is pushed between slot and mounting groove,
One end of the regulating tank is connected to slot is pushed, and the other end is connected to mounting groove.
As a further improvement of the present invention, it is equipped between the follower lever and fixed ring several symmetrically solid along follower lever
Fixed pole.
Beneficial effects of the present invention first push fixed ring when using chalk sleeve, and fixed ring is made to leave grip block, and grip block is beaten
It opens, is inserted into chalk, push fixed ring fixed clamp block later, chalk is fixed in chalk sleeve ontology, when use catches chalk
Ontology is covered, when writing from the chalk of grip block extension, pushes catch bar, connector drives fixed ring mobile at this time, makes
Fixed ring leaves aid block, accommodate it is fast separate, chalk can normally stretch out, it is only necessary to one-handed performance, and band while push
Dynamic fixed ring leaves grip block, and operating procedure is few, high-efficient, and then improves efficiency of attending class.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is cross section structure schematic diagram of the invention；
Fig. 3 is the partial structural diagram for pushing slot, mounting groove and regulating tank of the invention；
Fig. 4 is the structural schematic diagram of the first sliding groove of the invention, conflict block and the first spring；
Fig. 5 is the structural schematic diagram of catch bar of the invention.
Description of symbols: 1, chalk sleeve ontology；11, grip block；10, fixed ring；12, catch bar；2, connector；21, it pushes
Block；22, follower lever；23, connecting rope；120, connecting hole；101, the first sliding groove；102, the second sliding groove；1011, conflict block；
3, the first spring；1020, the second limiting slot；211, the second limited block；210, face is pushed；30, gripping ring；13, the first limit plate；
14, the second limit plate；121, outer bar；122, interior bar；1210, sliding slot；1220, limit hole；1222, slot is replied；41, slot is pushed；
42, mounting groove；43, the second locating piece；44, regulating tank；5, fixed link；
Specific embodiment
The present invention is described in further detail below in conjunction with embodiment given by attached drawing.
Shown in referring to Fig.1-Fig. 5, a kind of Semi-automatic chalk cover of the present embodiment includes: chalk sleeve ontology 1, the powder
The hollow setting of pen cap ontology 1, described 1 one end of chalk sleeve ontology is equipped with the axial grip block 11 being circumferentially distributed, several described
Grip block 11 is flexible, the chalk sleeve ontology 1 be equipped with sliding connection fixed ring 10, the chalk sleeve ontology 1 it is another
End is equipped with catch bar 12, and for the catch bar 12 for pushing chalk, the chalk sleeve ontology 1 is equipped with connector 2, the connection
Part 2 is connected and fixed ring 10 and catch bar 12, and when catch bar 12 pushes chalk, fixed ring 10 is slid.
Through the above technical solutions, making fixed ring 10 leave grip block 11 using fixed ring 10 is first pushed when chalk sleeve, press from both sides
The opening of block 11 is held, chalk is inserted into, 10 fixed clamp block 11 of fixed ring is pushed later, chalk is fixed in chalk sleeve ontology 1, is made
Used time catches chalk sleeve ontology 1, when writing from the chalk of 11 extension of grip block, pushes catch bar 12, at this time connector 2
It drives fixed ring 10 mobile, fixed ring 10 is made to leave aid block, accommodate and separate fastly, chalk can normally stretch out, it is only necessary to is singlehanded
Fixed ring 10 is driven to leave grip block 11 while operating, and push, operating procedure is few, and it is high-efficient, and then improve effect of attending class
Rate.Existing chalk sleeve needs first to open, chalk is enable to slide in chalk sleeve when adjusting the position of chalk in chalk sleeve,
The position for adjusting chalk turns off the fixed chalk of chalk sleeve, and operating procedure is excessive, is unfavorable for imparting knowledge to students
As a kind of improved specific embodiment, the connector 2 includes pushing block 21, follower lever 22 and connecting rope
23, the pushing block 21 is connected on chalk sleeve ontology 1 with the sliding of follower lever 22, and the catch bar 12 deviates from chalk sleeve ontology 1
End offer connecting hole 120, the connecting rope 23 passes through 120 one end of connecting hole and is fixedly connected with follower lever 22, the other end and
Pushing block 21 is fixedly connected, and the follower lever 22 is fixedly connected backwards to one end of connecting rope 23 with fixed ring 10, the chalk sleeve
Ontology 1 offers the first sliding groove 101 and the second sliding groove 102, the sliding of follower lever 22 connection first on along its length
In sliding groove 101, the sliding of pushing block 21 is connected in the second sliding groove 102, is equipped with and is contradicted in first sliding groove 101
Block 1011 is equipped with the first spring 3, one end of first spring 3 and follower lever between the follower lever 22 and conflict block 1011
22 is inconsistent, and the other end and conflict block 1011 are inconsistent.
Through the above technical solutions, thumb pushes pushing block 21 when writing from the chalk of 11 extension of grip block, push away
Motion block 21 is mobile towards 11 side of grip block, and connecting rope 23 pulls follower lever 22 backwards to 11 1 side slip of grip block, 3 quilt of the first spring
Compression, follower lever 22 drive fixed ring 10 towards 12 1 side slip of catch bar, and fixed ring 10 leaves grip block 11, and grip block 11 unclamps
Chalk, spring is compressed to regular length later, persistently pushes pushing block 21, and connecting rope 23 is driven to push catch bar 12 towards promotion
21 1 side slip of block, catch bar 12 push chalk to stretch out chalk sleeve ontology 1, unclamp pushing block 21 later, and the first spring 3 resets,
First spring, 3 one end and conflict block 1011 are inconsistent, push follower lever 22 mobile towards 11 side of grip block, follower lever 22 pushes solid
It is mobile towards 11 side of grip block to determine ring 10,10 fixed clamp block 11 of fixed ring fixes chalk, and follower lever 22 is towards grip block 11 1
Side is mobile to drive connecting rope 23 mobile, and then pushing block 21 is driven to reset.
As a kind of improved specific embodiment, the second limiting slot is offered on the cell wall of second sliding groove 102
1020, the pushing block 21 is equipped with the second limited block 211, in the second limiting slot of second limited block 211 insertion 1020 with
The sliding connection of second limiting slot 1020.
Through the above technical solutions, pushing block 21 is on the second sliding groove 102 when sliding, the second limited block 211 insertion the
Sliding in two limit slots, strengthens the bonding strength between pushing block 21 and chalk sleeve ontology 1 and the stability of connection, further mentions
Height uses the stability of chalk sleeve.
As a kind of improved specific embodiment, the side of pushing block 21 towards the catch bar 12 is offered to push away for thumb
The promotion face 210 of dynamic arc.
It is pushed through the above technical solutions, the promotion face of arc 210 is convenient when right-hand man grabs chalk sleeve ontology 1
Block 21, the promotion face 210 of cambered design meet ergonomics, more comfortable when pushing pushing block 21, improve and use chalk sleeve
Comfort.
As a kind of improved specific embodiment, the chalk sleeve ontology 1 is equipped with crawl backwards to the side of pushing block 21
Ring 30, the gripping ring 30 are fixed on chalk sleeve ontology 1 and pass through for index finger.
Through the above technical solutions, index finger passes through gripping ring 30, the thumb of the corresponding hand of index finger when crawl chalk sleeve ontology 1
Refer to pressing on the promotion face of pushing block 21 210, improve the stability that teacher grabs chalk sleeve, avoids leading to chalk due to unexpected
The case where set is fallen guarantees that chalk is not broken, and finger passes through gripping ring 30, and occurring unexpected chalk sleeve in time will not fall, and keeps away
Exempt from chalk fracture, improves the utilization rate of chalk, it is more environmentally-friendly.
As a kind of improved specific embodiment, the first limit plate 13, institute are unidirectionally hinged in the chalk sleeve ontology 1
Stating catch bar 12 includes outer bar 121 and interior bar 122, and the connecting hole 120 is provided in outer bar 121, and the outer bar 121 opens up
Have a sliding slot 1210, the sliding of interior bar 122 is connected in sliding slot 1210, the interior bar 122 be spaced along its length open up it is several
Limit hole 1220 offers in the interior bar 122 along its length and replys slot 1222, limit hole 1220 and replys slot 1222 and connects
It is logical, the second limit plate 14 is unidirectionally hinged on the cell wall of the sliding slot 1210.
Through the above technical solutions, second be unidirectionally hinged in sliding slot 1210 limits when connecting rope 23 pushes outer bar 121
14 position of plate is fixed, and the second limit plate 14, which is embedded in limit hole 1220, pushes limit hole 1220, and then pushes interior bar 122 to clamping
11 side of block is mobile, and the first limit plate 13 rotation in pushing course, the first limit plate 13 resets later, is embedded into the latter limit
In hole 1220, chalk is pushed out, and unclamps pushing block 21 later, and when chalk sleeve is resetted, little finger pulls outer bar 121, makes its time
Initial position is arrived again, when little finger pulls outer bar 121 mobile, the position of the fixed limitation interior bar 122 in 13 position of the first limit plate, the
Two restriction plates first rotate, and the second limit plate 14 resets later, are embedded in the latter limit hole 1220, the extension of catch bar 12
The distance between limit hole 1220 and limit hole 1220, push every time all extend between limit hole 1220 and limit hole 1220 away from
From, chalk is continued to release, outer bar 121 stretch out chalk sleeve ontology 1 the arc-shaped setting in one end, improve use when comfort.
As a kind of improved specific embodiment, is offered along its length in the chalk sleeve ontology 1 and push slot 41
With mounting groove 42, the mounting groove 42 and slot 41 is pushed separately, the outer bar 121 is equipped with the second locating piece 43, and described the
The sliding of two locating pieces 43, which is connected to, to be pushed in slot 41, and it is mutually flat that at least two are offered between the promotion slot 41 and mounting groove 42
Row and the regulating tank 44 vertical with slot 41 is pushed, one end of the regulating tank 44 are connected to slot 41 is pushed, the other end and mounting groove
42 connections.
Through the above technical solutions, after a chalk is finished, the insertion of the first limit plate 13 is removed chalk replacement, is turned at this time
Dynamic outer bar 121, the second limit plate 14 rotated to from limit hole 1220 reply it is inconsistent with the cell wall of replying slot 1222 in slot 1222,
Continue to rotate later, interior bar 122 rotates simultaneously with outer bar 121 at this time, and the first limit plate 13 rotates to reply from limit hole 1220
In slot 1222, the second locating piece 43 is from pushing in slot 41 by regulating tank 44 into mounting groove 42 during this, later by chalk
It is pushed into chalk sleeve ontology 1 from 11 side of grip block, interior bar 122 is persistently embedded in sliding slot 1210, the first limit plate 13 and the second limit
Position plate 14 slides in reply slot 1222, after chalk pushes away, reversely rotates outer bar 121, the second limit plate 14 rotates into limit
Position is wanted to contradict in hole 1220 with limit hole 1220, continues to rotate outer bar 121 later, interior bar 122 turns simultaneously with outer bar 121 at this time
Dynamic, the rotation of the first limit plate 13 carries out in limit hole 1220, and the second locating piece 43 is out of mounting groove 42 through overregulating during this
Slot 44, which enters, to be pushed in slot 41, is installed, and promotion slot 41 is limited when pushing with mounting groove 42 and outer bar 121 and chalk when installation
The position between ontology 1 is covered, stability when improving installation chalk and pushing chalk.
It is equipped with as a kind of improved specific embodiment, between the follower lever 22 and fixed ring 10 several along follower lever
22 symmetrical fixed links 5.
Through the above technical solutions, fixed link 5 is symmetrical along follower lever 22, it is fixedly connected with follower lever 22 and fixed ring 10, is mentioned
Connection area and bonding strength between high follower lever 22 and fixed ring 10 further increase follower lever 22 and pull fixed ring 10
Stability, fixed link 5 is arc-shaped, is bonded to each other with 1 outer surface of chalk sleeve ontology, follower lever 22 and fixed link 5 and fixed ring 10
Contact surface it is triangular in shape, stability is high.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of Semi-automatic chalk cover, includes: chalk sleeve ontology (1), it is characterised in that: the chalk sleeve ontology (1) is hollow
Setting, described chalk sleeve ontology (1) one end are equipped with the axial grip block (11) being circumferentially distributed, several grip blocks (11)
Flexible, the chalk sleeve ontology (1) is equipped with the fixed ring (10) of sliding connection, the other end of the chalk sleeve ontology (1)
Equipped with catch bar (12), the catch bar (12) is for pushing chalk, and the chalk sleeve ontology (1) is equipped with connector (2), institute
It states connector (2) and is connected and fixed ring (10) and catch bar (12), when catch bar (12) push chalk, fixed ring (10) sliding.
2. Semi-automatic chalk cover according to claim 1, it is characterised in that: the connector (2) includes pushing block
(21), follower lever (22) and connecting rope (23), the pushing block (21) and follower lever (22) sliding are connected to chalk sleeve ontology (1)
On, the catch bar (12) offers connecting hole (120) away from the end of chalk sleeve ontology (1), and the connecting rope (23), which passes through, to be connected
It connects hole (120) one end to be fixedly connected with follower lever (22), the other end is fixedly connected with pushing block (21), follower lever (22) back
It is fixedly connected to one end of connecting rope (23) with fixed ring (10), the chalk sleeve ontology (1) offers on along its length
One sliding groove (101) and the second sliding groove (102), follower lever (22) the sliding connection the first sliding groove (101) is interior, described to push away
Motion block (21) sliding is connected in the second sliding groove (102), is equipped with conflict block (1011) in first sliding groove (101), institute
It states and is equipped with the first spring (3), one end of first spring (3) and follower lever between follower lever (22) and conflict block (1011)
(22) inconsistent, the other end and conflict block (1011) are inconsistent.
3. Semi-automatic chalk cover according to claim 2, it is characterised in that: on the cell wall of second sliding groove (102)
It offers the second limiting slot (1020), the pushing block (21) is equipped with the second limited block (211), second limited block
(211) it is connected in insertion the second limiting slot (1020) with the second limiting slot (1020) sliding.
4. Semi-automatic chalk cover according to claim 3, it is characterised in that: the pushing block (21) is towards catch bar (12)
Side offers the promotion face (210) of the arc pushed for thumb.
5. Semi-automatic chalk cover according to claim 4, it is characterised in that: the chalk sleeve ontology (1) is backwards to pushing block
(21) side is equipped with gripping ring (30), and the gripping ring (30) is fixed on chalk sleeve ontology (1) and passes through for index finger.
6. Semi-automatic chalk cover according to claim 5, it is characterised in that: unidirectional hinged in the chalk sleeve ontology (1)
Have the first limit plate (13), the catch bar (12) includes outer bar (121) and interior bar (122), and the connecting hole (120) opens up
On outer bar (121), the outer bar (121) is offered sliding slot (1210), and interior bar (122) sliding is connected to sliding slot (1210)
Interior, the interior bar (122) is spaced opens up several limit holes (1220) along its length, on the interior bar (122) along its length
It offers and replys slot (1222), limit hole (1220) is connected to slot (1222) are replied, unidirectional on the cell wall of the sliding slot (1210)
It is hinged with the second limit plate (14).
7. Semi-automatic chalk cover according to claim 6, it is characterised in that: along length side in the chalk sleeve ontology (1)
Push slot (41) and mounting groove (42) to offering, the mounting groove (42) and promotion slot (41) separately, the outer bar (121)
It is equipped with the second locating piece (43), the second locating piece (43) sliding, which is connected to, to be pushed in slot (41), the promotion slot (41)
Offered between mounting groove (42) at least two be parallel to each other and with push slot (41) vertical regulating tank (44), the adjusting
One end of slot (44) is connected to slot (41) are pushed, and the other end is connected to mounting groove (42).
8. Semi-automatic chalk cover according to claim 7, it is characterised in that: the follower lever (22) and fixed ring (10) it
Between be equipped with it is several along the symmetrical fixed link (5) of follower lever (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811376201.6A CN109318623A (en) | 2018-11-19 | 2018-11-19 | A kind of Semi-automatic chalk cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811376201.6A CN109318623A (en) | 2018-11-19 | 2018-11-19 | A kind of Semi-automatic chalk cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109318623A true CN109318623A (en) | 2019-02-12 |
Family
ID=65257668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811376201.6A Withdrawn CN109318623A (en) | 2018-11-19 | 2018-11-19 | A kind of Semi-automatic chalk cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109318623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810374A (en) * | 2020-12-31 | 2021-05-18 | 黑河学院 | Carbon strip holder for art painting and fixing method |
-
2018
- 2018-11-19 CN CN201811376201.6A patent/CN109318623A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810374A (en) * | 2020-12-31 | 2021-05-18 | 黑河学院 | Carbon strip holder for art painting and fixing method |
| CN112810374B (en) * | 2020-12-31 | 2022-01-07 | 黑河学院 | Carbon strip holder for art painting and fixing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190212 |
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| WW01 | Invention patent application withdrawn after publication |