CN213593977U

CN213593977U - Pen cap structure capable of preventing chalk dust from being stained with hands

Info

Publication number: CN213593977U
Application number: CN202022100785.3U
Authority: CN
Inventors: 高慧; 占萌
Original assignee: Fuzhou College of Foreign Studies and Trade
Current assignee: Fuzhou College of Foreign Studies and Trade
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-07-02
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses an avoid chalk dust to be stained with pen socket structure of hand, including protective sheath and lead screw, the seat of placing that is used for placing the chalk is placed to the inside of protective sheath, the top of clamp plate is rotated and is connected with the threaded rod, the thread bush runs through the setting and sets up in the groove of wearing of seting up on the protective sheath upper surface, the lead screw rotates the inside below of installing at the protective sheath, the both ends at branch are installed respectively to tip axle and connecting axle, the right flank of protective sheath runs through to rotate and is equipped with the pivot, all be fixed with the gear on pivot and the lead screw, install interior slider on the lateral wall of thread bush. This avoid chalk dust to be stained with pen socket structure of hand, in order to guarantee the stability when the chalk stretches out a certain degree, four pivoted branches are installed to the opening part of protective sheath, and the cylinder that is equipped with on the branch can directly laminate with the lateral wall of chalk, can also play the effect of supporting stable chalk when avoiding chalk and protective sheath friction.

Description

Pen cap structure capable of preventing chalk dust from being stained with hands

Technical Field

The utility model relates to a chalk cover technical field specifically is a avoid chalk dust to be stained with pen socket structure of hand.

Background

The chalk is a writing tool, its convenient to use, and the colour rendering is high, there is extensive use in the aspect of teaching and exhibition demonstration, but the chalk falls the ash easily at the in-process of using, adsorb very easily on user's hand, some users can not bear the powder of chalk very much, so can use the pen socket that the chalk was used, the pen socket structure that prevents that the ash from being stained with the hand that however now many chalks were used also has certain drawback, if the material of pen socket is softer, the holding power is then relatively poor when using, and the harder pen socket of material all can be tightly the card of chalk in wherein, when the chalk was released the use, the chalk is then scraped very easily to the lateral wall of hard pen socket, cause the condition of falling the ash. Aiming at the problems, the novel design is carried out on the basis of the original pen cap structure for the chalk.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be not enough to prior art, the utility model provides a avoid chalk dust to be stained with pen socket structure of hand, solved present many chalk usefulness prevent that the chalk from being stained with the pen socket structure of hand also have certain drawback, if the material of pen socket is softer, the holding power is then relatively poor when using, and the harder pen socket of material all can be with the card that the chalk is tight wherein, when the chalk was released and is used, the chalk is then scraped very easily to the lateral wall of hard pen socket, cause the problem of the condition of falling the ash.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a pen cap structure for preventing chalk dust from being stained with hands comprises a protective sleeve and a screw rod, wherein a placing seat for placing chalk is placed inside the protective sleeve, a side sliding block is connected in a side sliding groove formed in the side wall of the placing seat and is installed on a pressing plate for pressing the chalk, a threaded rod is rotatably connected above the pressing plate and is installed in a threaded sleeve in a threaded manner, the threaded sleeve is arranged in a penetrating groove formed in the upper surface of the protective sleeve in a penetrating manner, an inner sliding groove is reserved in the side wall of the penetrating groove, the screw rod is rotatably installed below the inner portion of the protective sleeve, a tip shaft is installed at the opening at the left end of the protective sleeve, the tip shaft and a connecting shaft are respectively installed at two ends of a supporting rod, one end of the supporting rod is connected with a connecting seat rotatably installed with a roller through the connecting shaft, a rotating shaft is rotatably arranged on the right side surface of the protective sleeve, all be fixed with the gear on pivot and the lead screw, and lead screw through connection sets up in the inside thread groove of placing the seat below, install interior slider on the lateral wall of thread bush, and interior slider connects in interior spout.

Preferably, the placing seat forms a sliding structure with the pressing plate through the side sliding groove, the side sliding block and the pressing plate, the sliding direction of the sliding structure is the vertical direction, and the longitudinal section of the placing seat is in an L shape.

Preferably, the pressure plate forms a lifting structure through the threaded rod and the threaded sleeve, and the threaded sleeve forms a sliding structure through the inner sliding block, the inner sliding groove and the penetrating groove.

Preferably, the screw rod is arranged below the through groove in parallel, and the screw rod is meshed with a gear arranged on the rotating shaft.

Preferably, the number of the supporting rods is four at equal angles at the opening of the protective sleeve, the supporting rods are rotatably connected with the protective sleeve through end shafts, and the length of each supporting rod is greater than one half of the height of the protective sleeve.

Preferably, the connecting seat is rotatably connected with the support rod through a connecting shaft, and the longitudinal section of the connecting seat is arc-shaped.

(III) advantageous effects

The utility model provides a avoid chalk dust to be stained with pen socket structure of hand. The method has the following beneficial effects:

(1) this avoid chalk dust to be stained with pen socket structure of hand, through the setting of placing seat and clamp plate, make the chalk can press from both sides tightly to fix in the protective sheath, and the inside height that highly is less than the protective sheath of placing the seat, so general chalk all can be less than the inside height of protective sheath when installing in the device, thereby can be fine avoid the chalk to take place to rub the condition that appears being scraped with the lateral wall of protective sheath, and in order to guarantee the stability when the chalk stretches out the certain degree, four pivoted branches are installed to the opening part of protective sheath, the cylinder that is equipped with on the branch can be directly laminated with the lateral wall of chalk, can also play the effect of supporting stable chalk when avoiding chalk and protective sheath friction.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic top sectional view of the protective sheath of the present invention;

fig. 4 is a schematic view of the left structure of the protective sheath of the present invention.

In the figure: 1. a protective sleeve; 2. a placing seat; 3. a side chute; 4. a side slider; 5. pressing a plate; 6. a threaded rod; 7. a threaded sleeve; 8. penetrating a groove; 9. an inner chute; 10. a screw rod; 11. an end shaft; 12. a strut; 13. a connecting shaft; 14. a connecting seat; 15. a drum; 16. a rotating shaft; 17. a sleeve; 18. a gear; 19. a thread groove; 20. an inner slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a pen cap structure for preventing chalk dust from being stained with hands comprises a protective sleeve 1, a placing seat 2, a side sliding groove 3, a side sliding block 4, a pressing plate 5, a threaded rod 6, a threaded sleeve 7, a through groove 8, an inner sliding groove 9, a lead screw 10, an end part shaft 11, a support rod 12, a connecting shaft 13, a connecting seat 14, a roller 15, a rotating shaft 16, a sleeve 17, a gear 18, a threaded groove 19 and an inner sliding block 20, the placing seat 2 for placing chalk is placed inside the protective sleeve 1, the side sliding block 4 is connected in the side sliding groove 3 formed in the side wall of the placing seat 2, the side sliding block 4 is installed on the pressing plate 5 for pressing the chalk, the threaded rod 6 is rotatably connected above the pressing plate 5, the threaded rod 6 is installed in the threaded sleeve 7 in a threaded manner, the threaded sleeve 7 is arranged in the through groove 8 formed in the upper surface of the protective sleeve 1 in a penetrating manner, the inner sliding groove 9 is reserved in the side wall, an end shaft 11 is installed at the opening at the left end of the protective sleeve 1, the end shaft 11 and a connecting shaft 13 are respectively installed at two ends of a supporting rod 12, one end of the supporting rod 12 is connected with a connecting seat 14 which is rotatably provided with a roller 15 through the connecting shaft 13, a rotating shaft 16 is rotatably arranged on the right side surface of the protective sleeve 1 in a penetrating manner, a sleeve 17 which is rotatably arranged with the rotating shaft 16 is fixed on the side wall of the right end of the protective sleeve 1, gears 18 are fixed on the rotating shaft 16 and a screw rod 10, the screw rod 10 is rotatably connected in a threaded groove 19 which is arranged inside the lower portion of the placing seat 2 in a penetrating manner, an inner sliding block 20 is installed on the outer side wall of; the chalk is placed on the placing seat 2, the threaded rod 6 is rotated to drive the pressing plate 5 to descend, so that the chalk is fixed on the placing seat 2, the rotating shaft 16 can drive the placing seat 2 to move through rotation of the screw rod 10, the chalk can penetrate through an opening of the protective sleeve 1, the supporting rod 12 is pushed by the side wall of the chalk to rotate and be attached to the roller 15, and therefore friction and scraping caused by attachment of the surface of the chalk and the harder protective sleeve 1 can be avoided;

the placing seat 2 and the pressing plate 5 form a sliding structure through the side sliding groove 3, the side sliding block 4 and the pressing plate 5, the sliding direction of the sliding structure is the vertical direction, the longitudinal section of the placing seat 2 is L-shaped, and the pressing plate 5 can slide vertically in the placing seat 2 to be matched with the placing seat 2 to clamp and fix the chalk;

the pressing plate 5 and the threaded sleeve 7 form a lifting structure through the threaded rod 6, the threaded sleeve 7 and the through groove 8 form a sliding structure through the inner sliding block 20 and the inner sliding groove 9, the threaded rod 6 drives the pressing plate 5 to lift through rotation in the threaded sleeve 7, and when the placing seat 2 moves, the pressing plate 5 moves along with the threaded sleeve, so that the threaded sleeve 7 also synchronously slides in the through groove 8;

the screw rod 10 is arranged below the through groove 8 in parallel, the screw rod 10 is meshed with a gear 18 arranged on a rotating shaft 16, when the limiting part on the sleeve 17 is unscrewed, the rotating shaft 16 can be rotated, so that the screw rod 10 is driven to rotate through the gear 18, and the position of the placing seat 2 arranged on the screw rod 10 can be adjusted in the protective sleeve 1 by the rotation of the screw rod 10;

four supporting rods 12 are arranged at the opening of the protective sleeve 1 at equal angles, the supporting rods 12 are rotatably connected with the protective sleeve 1 through end shafts 11, the length of each supporting rod 12 is greater than one half of the height of the protective sleeve 1, and the supporting rods 12 can rotate to adjust the angle when being subjected to the force of chalk, so that the chalk is convenient to protrude from the opening;

connecting seat 14 rotates through connecting axle 13 and branch 12 and is connected, and the longitudinal section of connecting seat 14 is circular-arc, and when the chalk passed protective sheath 1 opening part, the lateral wall of chalk directly laminated with cylinder 15, because the length setting of branch 12, so branch 12 is being promoted and is rotating to make connecting seat 14 also rotate angle regulation thereupon.

During the use, rotate pivot 16 earlier and make and place seat 2 and can remove to suitable position, so that place the chalk, through placing the chalk on placing seat 2, thereby rotate threaded rod 6 again and make it drive clamp plate 5 and descend and fix the chalk on placing seat 2, it then can drive through the rotation of lead screw 10 and place seat 2 and remove to rotate pivot 16, make the chalk can pass the opening part of protective sheath 1, and the lateral wall of chalk promotes branch 12 and rotates and laminate on cylinder 15, thereby can avoid laminating with harder protective sheath 1 between the surface of chalk and produce friction and scrape the damage, the content that does not make detailed description in this description all belongs to the well-known prior art of the professional in this field simultaneously.

In conclusion, can obtain, this avoid chalk dust to be stained with pen socket structure of hand, through the setting of placing seat 2 and clamp plate 5, make the chalk press from both sides tightly to be fixed in protective sheath 1, and the height that highly is less than protective sheath 1 of placing seat 2, so general chalk all can be less than protective sheath 1's inside height when installing in the device, thereby the condition of being scraped appears in the friction takes place for the lateral wall of avoiding chalk and protective sheath 1 that can be fine, and in order to guarantee the stability when the chalk stretches out the certain degree, four pivoted branches 12 are installed to protective sheath 1's opening part, the cylinder 15 that is equipped with on branch 12 can directly laminate with the lateral wall of chalk, can also play the effect of supporting stable chalk when avoiding chalk and protective sheath 1 friction.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an avoid chalk dust to be stained with pen socket structure of hand, includes protective sheath and lead screw, its characterized in that: a placing seat for placing chalk is placed inside the protective sleeve, a side sliding block is connected in a side sliding groove formed in the side wall of the placing seat and is installed on a pressing plate for pressing the chalk, a threaded rod is rotatably connected above the pressing plate and is installed in a threaded sleeve in a threaded manner, the threaded sleeve is arranged in a through groove formed in the upper surface of the protective sleeve in a penetrating manner, an inner sliding groove is reserved in the side wall of the through groove, the lead screw is rotatably installed below the inner portion of the protective sleeve, an end shaft is installed at an opening at the left end of the protective sleeve, the end shaft and the connecting shaft are respectively installed at two ends of a supporting rod, one end of the supporting rod is connected with a connecting seat rotatably provided with a roller through the connecting shaft, a rotating shaft is rotatably arranged on the right side surface of the protective sleeve in a penetrating manner, the sleeve penetrating through the rotating shaft is fixed on, and lead screw through connection sets up in placing the inside thread groove in seat below, install interior slider on the lateral wall of thread bush, and interior slider connects in the interior spout.

2. The structure of a pen cap for preventing chalk dust from being stained as claimed in claim 1, wherein: the placing seat and the pressing plate form a sliding structure through the side sliding groove, the side sliding block and the pressing plate, the sliding direction of the sliding structure is the up-down direction, and the longitudinal section of the placing seat is L-shaped.

3. The structure of a pen cap for preventing chalk dust from being stained as claimed in claim 1, wherein: the pressing plate and the threaded sleeve form a lifting structure through the threaded rod, and the threaded sleeve and the penetrating groove form a sliding structure through the inner sliding block and the inner sliding groove.

4. The structure of a pen cap for preventing chalk dust from being stained as claimed in claim 1, wherein: the screw rod is arranged below the through groove in parallel, and the screw rod is meshed and connected with a gear arranged on the rotating shaft.

5. The structure of a pen cap for preventing chalk dust from being stained as claimed in claim 1, wherein: the equal-angle arrangement of the four supporting rods at the opening of the protective sleeve is realized, the supporting rods are rotatably connected with the protective sleeve through end shafts, and the length of each supporting rod is greater than one half of the height of the protective sleeve.

6. The structure of a pen cap for preventing chalk dust from being stained as claimed in claim 1, wherein: the connecting seat is rotatably connected with the supporting rod through a connecting shaft, and the longitudinal section of the connecting seat is arc-shaped.