CN206781359U

CN206781359U - A kind of chalk sleeve

Info

Publication number: CN206781359U
Application number: CN201720346283.4U
Authority: CN
Inventors: 黄凯强
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-05
Filing date: 2017-04-05
Publication date: 2017-12-22
Anticipated expiration: 2027-04-05

Abstract

It the utility model is related to a kind of chalk sleeve, including outer sleeve body, interior set body, slide push pedal and wiping sleeve, the interior set body is located inside outer sleeve body, the interior set body includes folding thin plate, snap ring and connection ring, the thin plate is cylindric in both ends open, described thin plate one end is fixedly connected with cushion, snap ring is fixedly installed on the inwall of the other end, outer wall is fixedly installed connection ring, the connection ring is fixedly connected with the slip push pedal, the slip push pedal has two, respectively in chute, the wiping sleeve includes wiping body and mutually bonding b, wiping sleeve and outer sleeve body are linked together by mutually bonding a and mutually bonding b adhesion effect；The utility model has the advantages of esy to use, safe and reliable.

Description

A kind of chalk sleeve

Technical field

The utility model belongs to teaching aid technical field, and in particular to a kind of chalk sleeve.

Background technology

Currently the majority school uses or old-fashioned blackboard is, it is necessary to use chalk-writing, the chalk master that the country uses There is common two kinds of chalk and dust-free chalk, its main component is calcium carbonate and calcium sulfate, or containing a small amount of calcium oxide, it is general Logical chalk is hard in a thick, thin regular cylindrical shape, quality；Due to the constituent of chalk, it is commonly used, easily Finger is damaged, and chalk dust is easily sticked on hand, it is unclean；In addition, when chalk-writing, occasional is wrong The appearance of malapropism, it usually needs writer goes to take blackboard eraser to wipe again, very inconvenient；To solve the above problems, exploitation is a kind of Chalk sleeve esy to use, safe and reliable is necessary.

Utility model content

The purpose of this utility model is for overcome the deficiencies in the prior art, and is provided a kind of esy to use, safe and reliable Chalk sleeve.

What the purpose of this utility model was realized in：A kind of chalk sleeve, including outer sleeve body, interior set body, slide push pedal and Wiping sleeve, the outer sleeve body include sleeve, cushion, screw rod, mutually bonding a and chute, and the sleeve is cylindric in both ends open, The cushion and the screw rod are separately positioned on the both ends of the sleeve, and the cushion is provided centrally with the fixing hole of circle, institute Stating has the latch of the trapezoidal shape of a circle on the outside of fixing hole, the mode that the screw rod is connected through a screw thread is with the sleeve connection one Rise, respectively around mutually bonding a is provided with, the sleeve surface is correspondingly arranged on two for the top and bottom of the sleeve outer surface Chute；The interior set body is located inside the outer sleeve body, and the interior set body includes folding thin plate, snap ring and connection ring, institute Thin plate is stated in the cylindric of both ends open, described thin plate one end is fixedly connected with the cushion, fixed on the inwall of the other end to set Snap ring is equipped with, outer wall is fixedly installed connection ring, and the connection ring is fixedly connected with the slip push pedal；The slip push pedal has Two, respectively in the chute, the slip push pedal includes connecting shaft, spring and sliding block, the connecting shaft and the connection ring It is fixedly connected, the connecting shaft outer sheath is provided with the sliding block, and the slider bottom has the lines being engaged with the chute, described Spring is located at the inside of institute's connecting shaft and the sliding block；The wiping sleeve includes wiping body and mutually bonding b, and the wiping body is in circle Shape, the mutually bonding b is in the annular shape of non-occluded state, positioned at the outside of the wiping body, the wiping sleeve and the overcoat Body is linked together by the mutually bonding b and the mutually bonding a adhesion effect.

The outer surface setting of the sleeve is fluted, and slipmat is provided with groove.

Its diameter of the circular fixation hole at the cushion center tapers into along the cushion inner surface exterior surface direction.

The cushion is made of soft plastic material.

The wiping body is located on the surface of the wiping sleeve side, and the both side surface of the wiping sleeve is provided with magic Paste b.

There is space between the outer sleeve body and the interior set body, the folding that the width in the space is more than the thin plate is wide Degree.

The beneficial effects of the utility model：The utility model is employed in the inside of outer sleeve body, is provided with folding thin The mode of the interior set body of plate composition, to solve in use, user's finger causes user's hand often in contact with chalk The problem of finger injury；One convenience is provided with by mutually bonding adhesion in the afterbody of outer sleeve body and installs and pull down wiping body, is solved Once in a while wrongly write during the use after word, it is necessary to writer goes to take blackboard eraser to wipe again, it is very inconvenient the problem of；Always , the utility model has the advantages of esy to use, safe and reliable.

Brief description of the drawings

Fig. 1 is front view of the present utility model.

Fig. 2 is sectional view when the utility model is not used.

Fig. 3 is the sectional view of the utility model in use.

Fig. 4 is the positive structure chart of wiping sleeve in the utility model.

Fig. 5 is the structure chart at the wiping sleeve back side in the utility model.

Fig. 6 is the top view of sliding block in the utility model.

Fig. 7 is the top view of cushion in the utility model.

In figure：1st, outer sleeve body 11, sleeve 12, cushion 121, fixing hole 122, latch 13, screw rod 14th, mutually bonding a 15, chute 16, slipmat 2, interior set body 21, thin plate 22, snap ring 23, connection ring 3rd, push pedal 31, connecting shaft 32, spring 33, sliding block 4, wiping sleeve 41, wiping body 42, mutually bonding b are slided.

Embodiment

The utility model is described further below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7：A kind of chalk sleeve, including outer sleeve body 1, interior set body 2, cunning Dynamic push pedal 3 and wiping sleeve 4, the outer sleeve body 1 include sleeve 11, cushion 12, screw rod 13, mutually bonding a14 and chute 15, the set Cylinder 11 is cylindric in both ends open, and the cushion 12 and the screw rod 13 are separately positioned on the both ends of the sleeve 11, described Cushion 12 is provided centrally with the fixing hole 121 of circle, and there is the latch 122 of the trapezoidal shape of a circle in the outside of fixing hole 121, described The mode that screw rod 13 is connected through a screw thread links together with the sleeve 11, the top and bottom point of the outer surface of sleeve 11 Mutually bonding a14 Wei Rao be provided with, the surface of sleeve 11 is correspondingly arranged on two chutes 15；The interior set body 2 is positioned at described Inside outer sleeve body 1, the interior set body 2 includes folding thin plate 21, snap ring 22 and connection ring 23, and the thin plate 21 is opened in both ends Mouthful it is cylindric, described one end of thin plate 21 is fixedly connected with the cushion 12, and snap ring 22 is fixedly installed on the inwall of the other end, Outer wall is fixedly installed connection ring 23, and the connection ring 23 is fixedly connected with the slip push pedal 3；The slip push pedal 3 has two Individual, respectively in the chute 15, the slip push pedal 3 includes connecting shaft 31, spring 32 and sliding block 33, the connecting shaft 31 and institute State connection ring 23 to be fixedly connected, the outer sheath of connecting shaft 31 is provided with the sliding block 33, and the bottom of sliding block 33 has and the chute 15 lines being engaged, the spring 32 are located at the inside of institute's connecting shaft 31 and the sliding block 33；The wiping sleeve 4 includes wiping body 41 and mutually bonding b42, the wiping body 41 is rounded, and the mutually bonding b42 is in the annular shape of non-occluded state, positioned at the wiping The outside of body 41 is wiped, the wiping sleeve 4 and the outer sleeve body 1 are made by the mutually bonding b42 and the mutually bonding a14 adhesion With linking together；The outer surface setting of the sleeve 11 is fluted, and slipmat 16 is provided with groove；The center of cushion 12 Its diameter of circular fixation hole 121 tapered into along the inner surface exterior surface direction of cushion 12；The cushion 12 is using soft Plastic material is made；The wiping body 41 is located on the surface of the side of wiping sleeve 4, and the both side surface of the wiping sleeve 4 is equal It is provided with mutually bonding b42；There is space between the outer sleeve body 1 and the interior set body 2, the width in space is more than the thin plate 21 Folding width.

The utility model is first turned on the screw rod 13 of the bottom of sleeve 11, chalk by sleeve 11 during use Bottom is fitted into interior set body 2, and chalk is initially charged with thin one end when loading, and after the completion of loading, utilizes the card of the inner surface of thin plate 21 Ring 22 fixes chalk, tightens screw rod 13；There are two due to sliding push pedal 3, respectively in chute 15, slide push pedal 3 and pass through Connecting shaft 31 is fixedly connected with connection ring 23, and the outer sheath of connecting shaft 31 is provided with sliding block 33, and the bottom of sliding block 33 has what is be engaged with chute 15 Lines, spring 32 are located at the inside of connecting shaft 31 and sliding block 33, then, while press the sliding block 33 of both sides, make to suit mutually originally Sliding block 33 and chute 15, because the factor of pressure is disconnected, so that sliding block 33 can be with the slip of above-below direction, sliding block 33 Slip drive interior set body 2 slide up and down, chalk is moved up and down, when moving up and down, thin plate 21 passes through interior set body 2 Its folded form, flexible process is completed, there is space between outer sleeve body 1 and interior set body 2, the width in space is more than the folding of thin plate 21 Width, avoid during the utility model use, thin plate 21 is damaged；Cushion 12 is made of soft plastic material, The center of cushion 12 is provided with the fixing hole 121 of circle, when chalk protrudes from outer sleeve body by the fixing hole 121 on cushion 12 When 1, fixing hole 121 has the function that fixed chalk front end, prevents during writing, chalk run-off the straight, due to chalk Be shaped as the thick regular columnar in the thin one end in one end, so the circular fixation hole 121 at the center of cushion 12, its diameter is used along soft The mode that 12 inner surface exterior surface directions taper into is padded, and there is the latch 122 of the trapezoidal shape of a circle in the outside of fixing hole 121, This is more convenient using these structures and uses new use, and the utility model, can be according to the need of user during use Ask, the prominent length of chalk is adjusted by sliding block 33, after regulation is completed, sliding block 33 is unclamped, due in sliding block 33 and connecting shaft 31 The effect of portion's spring 32, sliding block 33 reset, and are connected with chute 15；The utility model is fluted in the setting of the outer surface of sleeve 11, Slipmat 16 is provided with groove, improves convenience of the present utility model；The utility model also include one it is disassembled Wiping sleeve 4, and the both side surface of wiping sleeve 4 is provided with mutually bonding b42, during use, by the back side of wiping body 41 Mutually bonding b42 and the bottom of sleeve 11 mutually bonding a14 adhesions, solve after wrongly writing word once in a while during the use, need Want writer go again take blackboard eraser wipe, it is very inconvenient the problem of；Finally, after the utility model completes use, chalk It is retracted into interior set body 2, wiping sleeve 4 is removed, overturn, utilizes mutually bonding b42 and the top of sleeve 11 in the place face of wiping body 41 Mutually bonding a14 adhesions, fixing hole 121 is closed, when avoiding loading after use pocket, makes pocket dirty.

Total, the utility model has the advantages of esy to use, safe and reliable.

Claims

1. a kind of chalk sleeve, including outer sleeve body（1）, interior set body（2）, slide push pedal（3）And wiping sleeve（4）, it is characterised in that：Institute State outer sleeve body（1）Including sleeve（11）, cushion（12）, screw rod（13）, mutually bonding a（14）And chute（15）, the sleeve（11） In the cylindric of both ends open, the cushion（12）With the screw rod（13）It is separately positioned on the sleeve（11）Both ends, institute State cushion（12）It is provided centrally with the fixing hole of circle（121）, the fixing hole（121）There is the latch of the trapezoidal shape of a circle in outside （122）, the screw rod（13）The mode being connected through a screw thread and the sleeve（11）Link together, the sleeve（11）Appearance The top and bottom in face surround be provided with mutually bonding a respectively（14）, the sleeve（11）Surface is correspondingly arranged on two chutes （15）；The interior set body（2）Positioned at the outer sleeve body（1）Inside, the interior set body（2）Including folding thin plate（21）, card Ring（22）And connection ring（23）, the thin plate（21）In the cylindric of both ends open, the thin plate（21）One end and the cushion （12）It is fixedly connected, snap ring is fixedly installed on the inwall of the other end（22）, outer wall is fixedly installed connection ring（23）, the company Connect ring（23）With the slip push pedal（3）It is fixedly connected；The slip push pedal（3）There are two, respectively positioned at the chute（15） It is interior, the slip push pedal（3）Including connecting shaft（31）, spring（32）And sliding block（33）, the connecting shaft（31）With the connection ring （23）It is fixedly connected, the connecting shaft（31）Outer sheath is provided with the sliding block（33）, the sliding block（33）Bottom has and the chute （15）The lines being engaged, the spring（32）Positioned at institute's connecting shaft（31）With the sliding block（33）Inside；The wiping sleeve（4） Including wiping body（41）With mutually bonding b（42）, the wiping body（41）It is rounded, the mutually bonding b（42）In non-occluded state Annular shape, positioned at the wiping body（41）Outside, the wiping sleeve（4）With the outer sleeve body（1）Pass through the mutually bonding b （42）With the mutually bonding a（14）Adhesion effect link together.

A kind of 2. chalk sleeve as claimed in claim 1, it is characterised in that：The sleeve（11）Outer surface set it is fluted, Slipmat is provided with groove（16）.

A kind of 3. chalk sleeve as claimed in claim 1, it is characterised in that：The cushion（12）The circular fixation hole at center （121）Its diameter is along the cushion（12）Inner surface exterior surface direction tapers into.

A kind of 4. chalk sleeve as described in claim 1 or 3, it is characterised in that：The cushion（12）Using soft plastic material system Into.

A kind of 5. chalk sleeve as claimed in claim 1, it is characterised in that：The wiping body（41）Positioned at the wiping sleeve（4） On the surface of side, the wiping sleeve（4）Both side surface be provided with mutually bonding b（42）.

A kind of 6. chalk sleeve as claimed in claim 1, it is characterised in that：The outer sleeve body（1）With the interior set body（2）Between There is space, the width in space is more than the thin plate（21）Folding width.