CN213973357U

CN213973357U - Adjustable wax pen cap

Info

Publication number: CN213973357U
Application number: CN202022482760.4U
Authority: CN
Inventors: 李跃明
Original assignee: Hangzhou Great Star Tools Co Ltd
Current assignee: Hangzhou Great Star Tools Co Ltd; Hangzhou Great Star Industrial Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-17
Anticipated expiration: 2030-10-30

Abstract

The utility model provides an adjustable crayon cover, including sleeve and crayon fixing base, crayon fixing base sliding connection is equipped with the locking structure between sleeve and the crayon fixing base in the sleeve, is equipped with the radial limit structure of crayon of adaptable multiple specification crayon in the crayon fixing base. The utility model discloses during the use, with the crayon card on the crayon fixing base, slide the crayon fixing base, make the crayon expose suitable length outside the sleeve, the axial position of rethread locking structure locking crayon fixing base, the crayon is axial positioning along with it also, radial limit structure of crayon then retrains the radial position of crayon for the crayon is reliably fixed on this adjustable crayon cover, can carry out the hand with the crayon and draw, write with holding this adjustable crayon cover, avoids direct contact crayon to pollute the finger. After the exposed length of the crayon is ground short, the locking structure is loosened, the crayon fixing seat is locked after the axial position is readjusted, and the adjustment of the exposed length of the crayon can be conveniently completed.

Description

Adjustable wax pen cap

Technical Field

The utility model relates to a stationery, more specifically says that it relates to adjustable wax crayon cover.

Background

Crayons are commonly used in industrial design, artistic creation and learning, have oily substances on the surface, pollute fingers if being directly held, and are high in consumption speed. Therefore, the paper sleeve is usually sleeved on a wax crayon product which is delivered from a factory, so that the wax crayon can be prevented from being directly contacted by fingers, and the paper sleeve can be torn off partially or pulled backwards after the length of the wax crayon is shortened. The invention discloses a reusable wax pen cap with the publication number of CN110843381A, which is specially favorable for 2 month and 28 days 2020, and belongs to the technical field of school supplies. The main purposes of designing the reusable wax pen cap are as follows: in order to prevent children from occupying all hands when drawing after the crayon is not provided with the outer sleeve paper, the crayon can be repeatedly utilized, and resources are saved. The crayon comprises a solid rod, a hollow sleeve, external threads, internal threads and cracks, wherein the hollow sleeve is cylindrical and hollow, the diameter size of the hollow sleeve is slightly smaller than that of a crayon, the hollow sleeve is provided with the cracks, and the length of the cracks is slightly smaller than that of the hollow sleeve, so that the crayon can be tightly installed from the lower part of the hollow sleeve, and the internal threads are arranged on the inner side of the hollow sleeve; the solid rod is cylindrical and solid, external threads are arranged on the outer side of the solid rod, the solid rod is installed from the upper portion of the hollow sleeve through threaded connection, and the crayon is pushed out through continuous rotation of the solid rod. However, the invention is lack of a reliable crayon fixing device, the crayon is directly tightly matched with the hollow sleeve, the peripheral surface of the crayon is continuously abraded by the hollow sleeve along with the continuous advancing of the solid rod, the abraded crayon scraps are easy to block threads, and the situations of serious fouling and large increase of the advancing resistance of the solid rod can occur after long-term use.

SUMMERY OF THE UTILITY MODEL

The crayon has high consumption speed, can pollute fingers when in use, and the utility model provides a fixed crayon, the adjustable crayon sleeve which avoids direct contact with the crayon and can conveniently adjust the exposed length of the crayon is provided for overcoming the defect.

The technical scheme of the utility model is that: adjustable crayon cover, including sleeve and crayon fixing base, crayon fixing base sliding connection is equipped with locking structure in the sleeve between sleeve and the crayon fixing base in the sleeve, is equipped with the radial limit structure of crayon of adaptable multiple specification crayon in the crayon fixing base. The utility model discloses during the use, with the crayon card on the crayon fixing base, slide the crayon fixing base, make the crayon expose suitable length outside the sleeve, the axial position of rethread locking structure locking crayon fixing base, the crayon is axial positioning along with it also, radial limit structure of crayon then retrains the radial position of crayon for the crayon is reliably fixed on this adjustable crayon cover, can carry out the hand with the crayon and draw, write with holding this adjustable crayon cover, avoids direct contact crayon to pollute the finger. After the exposed length of the crayon is ground short, the locking structure is loosened, the crayon fixing seat is locked after the axial position is readjusted, and the adjustment of the exposed length of the crayon can be conveniently completed.

Preferably, the crayon fixing seat is cylindrical, the wall of the crayon fixing seat is provided with opposite elastic pieces, and the elastic pieces in a natural state are positioned inside the crayon fixing seat. The crayon fixing base of tube-shape is convenient for the crayon and inserts the location, and the shell fragment forms the centre gripping to the crayon in the crayon fixing base through self resilience force.

Preferably, the crayon holder is provided with an opening penetrating through the inner side and the outer side of the wall of the crayon holder, one end of the elastic sheet is fixedly connected to the inner edge of the opening, and the other end of the elastic sheet is a free end. The structure is convenient for the formation and the function exertion of the elastic sheet.

Preferably, the cylinder wall of the sleeve is provided with a sliding groove along the axial direction, the locking structure comprises a positioning screw and a fixing seat threaded hole, the fixing seat threaded hole is formed in the crayon fixing seat, and the positioning screw penetrates through the sliding groove and is screwed in the fixing seat threaded hole. When the positioning screw is screwed, the screw head is pressed on the outer wall of the sleeve to generate static friction, so that a locking force for the crayon fixing seat to move axially is formed; when the screw is loosened, the locking force disappears, and the crayon fixing seat can freely axially slide under the guiding action of the positioning screw and the sliding groove.

Preferably, the bottom of the crayon fixing seat is provided with a screw seat which radially extends into the cavity of the crayon fixing seat, and the screw hole of the fixing seat is arranged on the screw seat. The wall thickness of the barrel of the crayon fixing seat is limited, and the crayon fixing seat is difficult to form enough screwing depth with the positioning screw. Set up the screw seat, the fixing base screw hole can be processed into and has bigger degree of depth, and has longer soon to close the face with set screw within a definite time, produces bigger joint strength.

Preferably, the radial limiting structure of the crayon is axial ribs which are uniformly distributed on the inner wall of the crayon fixing seat and protrude radially. The crayon diameter suitable for the adjustable crayon sleeve is between the inner diameter of the sleeve and the diameter of a circle determined by the free end face of the axial rib. When the peripheral surface of the thinner crayon is abutted against the free end surfaces of the axial ribs, the crayon can be radially limited by the free end surfaces of the axial ribs; thicker crayons can be inserted from the port of the sleeve, the axial ribs cut axially extending grooves on the circumferential surface of the crayons, and the axial ribs are matched with the grooves, so that the crayons are limited in the radial direction.

Preferably, the free ends of the axial ribs are wedge-shaped. The free ends of the wedge-shaped axial ribs are convenient for cutting the surface of the crayon to form grooves.

Preferably, the axial ribs are integrally formed with the crayon holder. The axial ribs are located inside the crayon fixing seat, so that the crayon fixing seat and the axial ribs are integrally formed and are easier to process.

Preferably, the front end in the sleeve is provided with a concave curved surface suitable for being held by fingers. The concave curved surface corresponds to the holding position of the fingers, so that comfortable operation is facilitated.

Preferably, the concave curved surface is provided with anti-skid lines. The anti-slip lines are arranged to prevent fingers from slipping when held.

The utility model has the advantages that:

reliably fix the crayon and avoid direct contact with the crayon. The utility model discloses can install the crayon, with this adjustable crayon cover of holding, can carry out the hand with the crayon and draw, write, avoid direct contact crayon to pollute the finger.

Conveniently adjust crayon exposure length. After the exposed length of the crayon is ground short, the locking structure is loosened, the crayon fixing seat is locked after the axial position is readjusted, and the adjustment of the exposed length of the crayon can be conveniently completed.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an exploded structure of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is a schematic cross-sectional view of a holder for crayons according to the present invention;

FIG. 5 is a cross-sectional view of a holder for a crayon according to the present invention;

fig. 6 is a schematic view of a usage status of the present invention.

In the figure, 1-sleeve, 2-crayon fixing seat, 3-spring plate, 4-opening, 5-sliding groove, 6-positioning screw, 7-axial rib, 8-concave curved surface, 9-screw seat, 10-fixing seat threaded hole and 11-crayon.

Detailed Description

The present invention will be further described with reference to the following detailed description of the embodiments.

Example 1:

as shown in fig. 1 to 6, adjustable crayon cover, including sleeve 1 and crayon fixing base 2, crayon fixing base 2 sliding connection is in sleeve 1, and sleeve 1 is the tube-shape and the cross section is regular hexagon, is equipped with locking structure between sleeve 1 and the crayon fixing base 2, is equipped with the radial limit structure of crayon of adaptable multiple specification crayon in the crayon fixing base 2. The crayon fixing seat 2 is in a cylindrical shape, the cross section of the crayon fixing seat is in a regular hexagon shape, the cylinder wall of the crayon fixing seat 2 is provided with the opposite elastic sheet 3, and the elastic sheet 3 in a natural state is positioned inside the crayon fixing seat 2. The crayon fixing seat 2 is provided with an opening 4 penetrating through the inner side and the outer side of the cylinder wall of the crayon fixing seat 2, one end of the elastic sheet 3 is fixedly connected to the inner edge of the opening 4, the other end of the elastic sheet is a free end, and the free end is ejected into the crayon fixing seat 2 in a natural state. The shrapnel 3 and the crayon fixing seat 2 are integrally formed. Be equipped with spout 5 along the axial on sleeve 1's the section of thick bamboo wall, spout 5 link up 1 section of thick bamboo wall inside and outside of sleeve, and 5 both ends of spout seal, locking structure includes set screw 6 and fixing base screw hole 10, and on the crayon fixing base 2 was located to the fixing base screw hole, set screw 6 radially runs through spout 5 and closes soon in fixing base screw hole 10 along sleeve 1, and set screw 6's head is moulded plastics the oblate column knob at set screw 6 for the secondary, and oblate column knob diameter is greater than the 5 width of spout, and is equipped with anti-skidding line on the oblate column knob outer peripheral face. The bottom of the crayon fixing seat 2 is provided with a screw seat 9 which radially extends into the cavity of the crayon fixing seat 2, and a fixing seat threaded hole 10 is arranged on the screw seat 9. Radial limit structure of crayon is equipartition in 2 inner walls of crayon fixing base and radial bellied

axial rib

7, and 7 free ends of axial rib are half-circular arc, axial rib 7 and crayon fixing base 2 integrated into one piece. The front end is equipped with the concave surface 8 that is suitable for the finger to hold and hold between the fingers in sleeve 1, is equipped with anti-skidding line on the concave surface 8.

Use the utility model discloses the time, loosen positioning screw 6 soon, do slightly earlier 11 tail ends of crayon and polish in order to be fit for the cavity of crayon fixing base 2, insert crayon fixing base 2 with 11 tail ends of crayon, and the centre gripping through shell fragment 3 blocks, slip crayon fixing base 2, make crayon 11 expose suitable length outside the sleeve port, set screw 6 screws again, the axial position of locking crayon fixing base 2, crayon 11 is axial positioning thereupon also, radial position that the crayon was then retrained to the radial limit structure of crayon, make the crayon reliably fixed on this adjustable crayon sheathes. After the exposed length of the crayon is ground short, the positioning screw 6 is loosened, the axial position of the crayon fixing seat 2 is readjusted and then locked, and the exposed length of the crayon can be conveniently adjusted. When the peripheral surface of the thinner crayon is abutted against the free end surfaces of the axial ribs 7, the crayon can be limited by the free end surfaces of the axial ribs 7 in the radial direction; thicker crayons can be inserted from the port of the sleeve 1, axially extending grooves are cut on the circumferential surface of the crayons by the axial ribs 7, and the axial ribs 7 are matched with the grooves, so that the crayons 11 are limited in the radial direction.

Example 2:

the locking structure comprises a stud and a locking nut, the locking nut is a butterfly nut, the stud is fixedly arranged on the crayon fixing seat 2 along the radial direction of the crayon fixing seat 2 and penetrates through the sliding groove 5 in the radial direction, and the locking nut is screwed on the exposed part of the stud outside the sliding groove 5. The free ends of the axial ribs 7 are wedge-shaped. The rest is the same as example 1.

Claims

1. Adjustable crayon cover, characterized by include sleeve (1) and crayon fixing base (2), crayon fixing base (2) sliding connection is equipped with locking structure in sleeve (1) between sleeve (1) and crayon fixing base (2), is equipped with the radial limit structure of crayon of adaptable multiple specification crayon in crayon fixing base (2).

2. The adjustable crayon cover according to claim 1, wherein the crayon holder (2) is cylindrical, and the opposite resilient pieces (3) are provided on the cylindrical wall of the crayon holder (2), and the resilient pieces (3) are located inside the crayon holder (2) in a natural state.

3. The adjustable crayon cover according to claim 2, wherein the crayon holder (2) has an opening (4) formed therein and therein through the wall of the crayon holder (2), and the resilient piece (3) has one end fixedly connected to an inner edge of the opening (4) and the other end serving as a free end.

4. The adjustable wax crayon sleeve as claimed in claim 1, wherein a sliding groove (5) is axially formed in the wall of the sleeve (1), the locking structure comprises a positioning screw (6) and a threaded hole (10) of the fixing seat, the threaded hole of the fixing seat is formed in the crayon fixing seat (2), and the positioning screw (6) penetrates through the sliding groove (5) and is screwed in the threaded hole (10) of the fixing seat.

5. An adjustable crayon holder as claimed in claim 4, wherein the bottom of the crayon holder (2) is provided with a screw seat (9) extending radially into the cavity of the crayon holder (2), and the holder threaded hole (10) is provided in the screw seat (9).

6. The adjustable crayon cap according to claim 2, wherein the crayon radial limiting structure is an axial rib (7) which is uniformly distributed on the inner wall of the crayon holder (2) and protrudes radially.

7. An adjustable wax-tipped pen cap according to claim 6, wherein the free ends of the axial ribs (7) are wedge-shaped.

8. An adjustable crayon sleeve according to claim 6, wherein the axial ribs (7) are formed integrally with the crayon holder (2).

9. An adjustable wax pen cap according to any one of claims 1 to 8, wherein the sleeve (1) is provided with a concave curved surface (8) at its forward end adapted to be gripped by a finger.

10. An adjustable wax pen cap according to claim 9, wherein the concave curved surface (8) is provided with anti-slip lines.