CN215881892U

CN215881892U - Hole puncher

Info

Publication number: CN215881892U
Application number: CN202121853803.3U
Authority: CN
Inventors: 王昌亮
Original assignee: Ningbo Kasen Stationery Co ltd
Current assignee: Ningbo Kasen Stationery Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-22
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a puncher, which comprises a nipper mouth piece, an upper nipper foot and a lower nipper foot, wherein a punching knife and a punching hole for punching are arranged in the nipper mouth piece, the nipper mouth piece is fixedly connected with the head part of the lower nipper foot, the head part of the upper nipper foot is respectively hinged with the nipper mouth piece and the punching knife, a paper containing groove with an opening at the front end is arranged on the nipper mouth piece, and a waste paper box communicated with the punching hole is also arranged at the head part of the lower nipper foot, and is characterized in that: a cylindrical spring is fixedly positioned between the middle rear bottom surface of the upper cavity of the jaw piece and the rear top surface of the upper jaw head cavity. The puncher has the advantages that: through the improvement to the hole puncher structure and the replacement of spring type, made things convenient for the equipment of product and reduced manufacturing cost, moreover, increased two upper and lower pincers foot afterbody to the arm of force length of spring fulcrum, it is more light laborsaving when making to hold the hole puncher and punch.

Description

Hole puncher

Technical Field

The utility model relates to office stationery, in particular to a puncher capable of punching paper.

Background

People often need to use the hole puncher in official working and study to when arranging the paper, adopt the loose-leaf binder centre gripping to assemble together or adopt the rope body to pass the hole and fix the paper file together after punching the paper. At present, more punches of using all are the punches of a hand-held type pincerlike structure, and this kind of punches has convenient to carry, easy operation's characteristics, for example, chinese patent literature discloses a punch that my company developed, patent application no: 201720265947.4, the puncher comprises a pincer mouth and an upper pincer leg and a lower pincer leg which are pivoted together in a staggered manner, a punching knife and a punching hole for punching are arranged in the pincer mouth, a waste paper bowl is arranged at the lower part of the punching hole of the pincer mouth, and torsion springs are arranged in the inner surface grooves corresponding to the middle rear parts of the upper pincer leg and the lower pincer leg. The hole puncher is completely composed of metal components, the cost is relatively high, in an initial state before punching, the upper clamp leg and the lower clamp leg of the hole puncher are opened by the torsion action of the torsion spring to form a horn mouth, the time spent during product assembly is long due to the structural design, and the labor cost is relatively high. The hole puncher with the improved design also appears in the existing market, two upper and lower clamp feet of the hole puncher and a waste paper bowl are replaced by plastic formed parts, so that the product cost is reduced, but the two upper and lower clamp feet of the hole puncher are in an open state in the initial state of the hole puncher, and the hole puncher still depends on the torsion action of a torsion spring. Therefore, the hole puncher with the structure has the problems that the product cost is further reduced and the use effect is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a puncher with an improved structure aiming at the defects in the prior art.

The technical scheme adopted by the utility model is as follows: the utility model provides a hole puncher, includes pincers mouth spare, goes up pincers foot, lower pincers foot, be provided with the die cutter of usefulness of punching and punch a hole in the pincers mouth spare, pincers mouth spare and lower pincers foot head fixed connection, go up pincers foot head and be connected with pincers mouth spare and die cutter are articulated respectively, be equipped with front end open-ended on the pincers mouth spare and hold the paper slot, down pincers foot head still be equipped with punch a hole communicating waste paper box, its characterized in that: a cylindrical spring is fixedly positioned between the middle rear bottom surface of the upper cavity of the jaw piece and the rear top surface of the upper jaw head cavity.

Preferably, the bottom end of the spring is placed in a groove hole formed in the bottom surface of the middle rear part of the inner cavity of the upper part of the jaw piece and is fixedly connected with the groove hole.

Preferably, the top end part of the spring is sleeved in a circular convex column arranged on the top surface of the rear part of the inner cavity of the head part of the upper clamp foot to be connected and fixed.

Compared with the prior art, the utility model has the advantages that: carry out the improved design through the structure to current hole puncher, will have the structural improvement that sets up installation torsion spring between two upper and lower pincers feet of hole puncher now to replace for setting up the structure of installing cylindrical compression spring between last pincers foot head and pincers mouth piece, make things convenient for the equipment of product and reduced manufacturing cost, in addition, increased two upper and lower pincers foot afterbody to the arm of force length of spring fulcrum, make hold hole puncher light laborsaving more when punching.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic sectional view taken along the line a-a in fig. 2.

Fig. 4 is an exploded perspective view of the present invention.

In the figure: 1. the paper-cutting pliers comprise a pliers mouth piece, 11, a second hinge hole, 12, a paper containing groove, 13, a cylindrical shaft, 131, a central shaft hole, 14, a punched hole, 15, a guide limiting groove hole, 16, a groove, 2, an upper pliers foot, 21, a first hinge hole, 22, a third hinge hole, 23, a circular convex column, 3, a lower pliers foot, 4, a punching knife, 41, a shaft hole, 5, a first hinge shaft, 6, a second hinge shaft, 7, a bottom cover, 8 and a spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a hole puncher comprises a jaw piece 1, an upper jaw 2, a lower jaw 3, a punching knife 4, a first hinge shaft 5 and a second hinge shaft 6, wherein the bottom of the jaw piece 1 is placed in a positioning groove formed in the upper surface of the head of the lower jaw 3 for fixed connection, corresponding first hinge holes 21 are formed in the positions, close to the lower sides, of the front parts of the two side wings of the head of the upper jaw 2, and the front parts of the jaw piece 1, close to the upper side, are provided with corresponding second hinge holes 11 which are aligned and then are hinged through the first hinge shaft 5;

the middle lower part of the plier mouth piece 1 is provided with a paper containing groove 12 with a horn-mouth-shaped opening at the front end part, the middle upper part of the plier mouth piece 1 is provided with an upper inner cavity, the middle front part of the upper inner cavity is provided with an upward convex cylindrical shaft 13, the cylindrical shaft 13 is internally provided with a central shaft hole 131 communicated with the top surface of the paper containing groove 12, the bottom surface of the paper containing groove 12 corresponding to the central shaft hole 131 is provided with a punching hole 14 coaxial with the central shaft hole 131, and two side wings of the upper part of the plier mouth piece 1 corresponding to the cylindrical shaft 13 are also provided with guide limit groove holes 15 with upper and lower semi-circular heads and two parallel sides;

the punching knife 4 is arranged in the central shaft hole 131 and is connected in a sliding fit manner, and the upper part of the punching knife 4 is provided with a shaft hole 41 corresponding to the guide limiting groove hole 15; the rear parts of two side wings at the head of the upper tong leg 2, which are close to the lower side, are provided with corresponding third hinge holes 22, the third hinge holes 22 are correspondingly aligned with the guide limit slotted holes 15 and the shaft holes 41, and then the second hinge shafts 6 are inserted to enable the head of the upper tong leg 2, the jaw piece 1 and the punching knife 4 to be mutually hinged, the tail part of the upper tong leg 2 is pushed upwards and downwards to enable the punching knife 4 to slide upwards and downwards in the central shaft hole 131, and the vertical sliding distance is limited by the guide limit slotted holes 15;

the lower end of the head of the lower clamp leg 3 is hinged with an openable bottom cover 7, the bottom cover 7 and the inner cavity of the lower end of the head of the lower clamp leg 3 form a waste paper box together, and the upper part of the waste paper box is communicated with a punching hole 14 to collect and place punched waste paper. The above is the prior art.

The method is characterized in that: a cylindrical spring 8 is fixedly positioned between the bottom surface of the middle rear part of the upper inner cavity of the jaw piece 1 and the top surface of the rear part of the head inner cavity of the upper jaw leg 2, the bottom end part of the spring 8 is placed into a groove 16 formed in the bottom surface of the middle rear part of the upper inner cavity of the jaw piece 1 to be fixedly connected, and the top end part of the spring 8 is sleeved into a circular convex column 23 formed in the top surface of the rear part of the head inner cavity of the upper jaw leg 2 to be fixedly connected.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a hole puncher, includes jaw spare (1), goes up tong foot (2), pincers foot (3) down, be provided with in jaw spare (1) and punch a hole (14) of punching the usefulness (4), jaw spare (1) and pincers foot (3) head fixed connection down, go up tong foot (2) head respectively with jaw spare (1) and punch a hole (4) articulated connection, be equipped with front end open-ended on jaw spare (1) and hold paper groove (12), pincers foot (3) head still be equipped with down with punch a hole (14) communicating waste paper box, its characterized in that: a cylindrical spring (8) is fixedly positioned between the middle rear bottom surface of the upper inner cavity of the jaw piece (1) and the rear top surface of the head inner cavity of the upper jaw leg (2).

2. The hole punch of claim 1, wherein: the bottom end part of the spring (8) is placed into a groove (16) arranged on the bottom surface of the middle rear part of the upper inner cavity of the jaw piece (1) to be connected and fixed.

3. The hole punch of claim 1, wherein: the top end part of the spring (8) is sleeved in a circular convex column (23) arranged on the top surface of the rear part of the inner cavity of the head part of the upper clamp leg (2) and is fixedly connected.