CN201998220U

CN201998220U - Labor-saving punching machine

Info

Publication number: CN201998220U
Application number: CN2011200130420U
Authority: CN
Inventors: 肖群星
Original assignee: STD STATIONERY (SHENZHEN) CO Ltd
Current assignee: STD STATIONERY (SHENZHEN) CO Ltd
Priority date: 2011-01-17
Filing date: 2011-01-17
Publication date: 2011-10-05
Anticipated expiration: 2021-01-17

Abstract

The utility model discloses a labor-saving punching machine which is used for punching on paper sheets or other sheet bodies, and comprises a bearing frame fixed on a seat stand, a handle capable of being rotatablely fixed on the bearing frame, a punch swinging by winding a rotating shaft along with the handle so as to perform punching downward, and an n-shaped connecting framework for connecting the bearing frame and the handle. A guide plate provided with a through hole at the center to ensure the punch to penetrate through and limit the punch to only do longitudinal axial motion is arranged between two side walls of the bearing frame; and as the distance L2 between the central axis of the punch and the swing center of the handle, namely the center line of the rotating shaft, is reduced, a smallest resisting arm can be obtained, and when the connecting framework moves downward along with the handle and drives the punch to perform punching downward, the labor saving is realized. The labor-saving punching machine has the advantages of simple structure, labor saving for use, less parts, lower production cost and long service life.

Description

The effort-saving puncher

Technical field

The utility model relates to the perforating device that punches on paper class and other lamellar bodies, relate in particular to a kind of effort-saving puncher as office accommodation.

Background technology

Puncher generally include seat stand and on parts such as bracing frame, handle and eyelet punch, referring to Fig. 1, the prior art puncher, its be fixed on the seat stand bearing support upper end be provided with a place and bend downwards, it is made as the restriction eyelet punch can only does the spacing of axially-movable up and down, like this, when pushing the punching of puncher handle downwards, horizontal range L1 is bigger between the fulcrum of connection handle and bearing support and the drilling point of drift, and the resistance arm of formation is longer, punching is effort very, and the puncher life-span is short.

Summary of the invention

The technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and a kind of effort-saving puncher is provided, have use laborsaving, simple in structure, part is less, production cost is lower and the characteristics of long service life.

The technical scheme that the utility model solve the technical problem employing is:

Utilize lever principle that a kind of effort-saving puncher is provided, comprise the bearing support that is fixed on the seat stand, be rotatably mounted to the handle on this bearing support, and swing around the shaft and the eyelet punch of punching press down with handle, especially, comprise that also the Π shape that is used to connect bearing support and handle is connected framework; Being provided with central authorities between the two side of described bearing support has through hole to pass through and limit the guide plate that it can only do up and down axially-movable for described drift; Be that distance L 2 is shortened obtaining minimum resistance arm between the center line of rotating shaft by the oscillation center of the axis of eyelet punch and handle, down laborsaving during punching press thereby described connection framework moves downward and drive described drift with handle.

Described guide plate, be on a sidewall of bearing support, to go out rectangular aperture, but only thrust bottom and dual-side, by dash from the plate of described sidewall up bend along the upper sideline of this rectangular aperture become be parallel to the parallel connection of bearing support bottom surface be knotted a sidewall of this bearing support, be used to limit eyelet punch can only do about the guide plate of axially-movable.

Through hole has been gone out on the coaxial line ground, upper end, two side of described bearing support respectively, be used to penetrate the rotating shaft handle and be rotatably mounted to bearing support, described through hole is arranged on the nearest position of passing through apart from eyelet punch of horizontal direction, through hole axis as much as possible forward, so that the shortest resistance arm L2 is arranged.

Described Π shape connects nearly transverse splicing beam position, upper end, framework two side, has gone out a pair of through hole coaxially respectively, is used for connecting rotationally handle.

Described Π shape connects lower end, framework two side away from transverse splicing beam position, has gone out a pair of through hole coaxially respectively, and the transmission rod that is used for penetrating eyelet punch upper lateral through hole is fixed thereon.

Compare with prior art, the beneficial effect of the utility model effort-saving puncher is:

(1) mode that plate up bends limits eyelet punch to adopt the bearing support sidewall to blurt out, make the through hole that connects handle and bearing support be arranged on the nearest position of passing through apart from eyelet punch of horizontal direction, through hole axis as much as possible forward, so that the shortest resistance arm is arranged, realize the labor-saving effect.

(2) connect framework by Π shape through hole that connects handle and bearing support and the through hole axis horizontal direction distance that eyelet punch passes through are diminished, the increase lever ratio is used more laborsaving.

(3) simple in structure, part is less, production cost is lower and long service life.

Description of drawings

Fig. 1 is the axonometric projection schematic diagram of the utility model effort-saving puncher;

Fig. 2 is that cross-sectional schematic is looked on the left side of described effort-saving puncher;

Fig. 3 is the axonometric projection schematic diagram of described effort-saving puncher main part connection status;

Fig. 4 is the axonometric projection schematic diagram of described effort-saving puncher main part disassembled form;

Fig. 5 is the axonometric projection schematic diagram of described effort-saving puncher bearing support 1;

Fig. 6 is that cross-sectional schematic is looked on the right side of described effort-saving puncher bearing support 1;

Fig. 7 is that cross-sectional schematic is looked on the left side of prior art puncher;

Fig. 8 is the axonometric projection schematic diagram of prior art puncher bearing support 1';

Fig. 9 is that cross-sectional schematic is looked on the right side of prior art puncher bearing support 1'.

The specific embodiment

Below in conjunction with each accompanying drawing the utility model is described in further detail.

Referring to Fig. 1 to Fig. 9, a kind of effort-saving puncher, comprise the bearing support 1 that is fixed on the seat stand, be rotatably mounted to the handle 2 on this bearing support 1, and with handle 2 around the shaft 7 the swing and the eyelet punch 4 of down punching press, especially, comprise that also the Π shape that is used to connect bearing support 1 and handle 2 is connected framework 3; Being provided with central authorities between the two side of described bearing support 1 has through hole 13 to pass through and limit it for described drift 4 can only to make the guide plate 10 of axially-movable up and down; Be that distance L 2 is shortened obtaining minimum resistance arm between the center line of rotating shaft 7 by the oscillation center of the axis of eyelet punch 4 and handle 2, down laborsaving during punching press thereby described connection framework 3 moves downward and drive described drift 4 with handle 2.

Described guide plate 10, be on a sidewall of bearing support 1, to go out rectangular aperture 12, but only thrust bottom and dual-side, by dash from the plate of described sidewall up bend along the upper sideline of this rectangular aperture 12 become be parallel to bearing support 1 bottom surface parallel connection be knotted 1 one sidewalls of this bearing support, be used to limit eyelet punch 4 can only do about the guide plate 10 of axially-movable.

Through hole 11 has been gone out on the coaxial line ground, upper end, two side of described bearing support 1 respectively, be used to penetrate rotating shaft 7 handles 2 and be rotatably mounted to bearing support 1, described through hole 11 is arranged on the nearest position of passing through apart from eyelet punch 4 of through hole 13 axis horizontal directions as much as possible forward, so that the shortest resistance arm L2 is arranged.

Described Π shape connects nearly transverse splicing beam position, upper end, framework 3 two sides, has gone out a pair of through hole 31 coaxially respectively, is used for connecting rotationally handle 2.

Described Π shape connects lower end, framework 3 two side away from transverse splicing beam position, has gone out a pair of through hole 30 coaxially respectively, and the transmission rod 5 that is used for penetrating eyelet punch 4 upper lateral through holes 40 is fixed thereon.

Described axle 5 passes the through hole 30 that connects on the framework 3 and the through hole 40 on the eyelet punch, will connect

framework

3 and 4 fixedly connected with punching; Described axle 6 passes the through hole 31 that connects on the framework 3 and the through hole 20 on the handle 2, will connect framework 3 and handle 2 couples together rotationally; Described axle 7 passes through hole 11 on the bearing support 1 and the through hole 21 on the handle 2, and handle 2 is rotatably mounted on the bearing support 1.

During puncher work, the user pushes handle 2 downwards, make that handle 2 is center of rotation past lower swing on bearing support 1 with axle 7, being connected rotating shaft 6 on the handle 2 follows handle 2 and moves downward together, by axle 6 with the pressure on the handle 2 be delivered to the axle the 6 connection frameworks 3 that are connected on, the connection framework 3 by axle 5 power is delivered on the drift 4, so again, the feasible little power that acts on the handle 2 is delivered on the drift 4 and is converted to punching energetically, thereby realizes the labor-saving effect.

The above embodiment has only been expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model; Therefore, all equivalents and modifications of being done with the utility model claim scope all should belong to the covering scope of the utility model claim.

Claims

1. effort-saving puncher, comprise the bearing support (1) that is fixed on the seat stand, be rotatably mounted to the handle (2) on this bearing support (1), and with handle (2) (7) swing around the shaft the eyelet punch of punching press (4) down is characterized in that:

Comprise that also the Π shape that is used to connect bearing support (1) and handle (2) is connected framework (3); Being provided with central authorities between the two side of described bearing support (1) has through hole (13) to pass through and limit the guide plate (10) that it can only do up and down axially-movable for described drift (4); Be that distance L 2 is shortened obtaining minimum resistance arm between the center line of rotating shaft (7) by the oscillation center of the axis of eyelet punch (4) and handle (2), down laborsaving during punching press thereby described connection framework (3) moves downward and drive described drift (4) with handle (2).

2. according to the described effort-saving puncher of claim 1, it is characterized in that: described guide plate (10), be on a sidewall of bearing support (1), to go out rectangular aperture (12), but only thrust bottom and dual-side, by dash from the plate of described sidewall up bend along the upper sideline of this rectangular aperture (12) become be parallel to bearing support (1) bottom surface parallel connection be knotted (1) sidewall of this bearing support, be used to limit eyelet punch (4) can only do about the guide plate (10) of axially-movable.

3. according to the described effort-saving puncher of claim 1, it is characterized in that: through hole (11) has been gone out on the coaxial line ground, upper end, two side of described bearing support (1) respectively, be used to penetrate rotating shaft (7) handle (2) and be rotatably mounted to bearing support (1), described through hole (11) is arranged on the nearest position of passing through apart from eyelet punch (4) of horizontal direction, through hole (13) axis as much as possible forward, so that the shortest resistance arm L2 is arranged.

4. according to the described effort-saving puncher of claim 1, it is characterized in that: described Π shape connects nearly transverse splicing beam position, upper end, framework (3) two side, has gone out a pair of through hole (31) coaxially respectively, is used for connecting rotationally handle (2).

5. according to the described effort-saving puncher of claim 1, it is characterized in that: described Π shape connects framework (3) lower end, two side away from transverse splicing beam position, gone out a pair of through hole (30) coaxially respectively, the transmission rod (5) that is used for penetrating eyelet punch (4) upper lateral through hole (40) is fixed thereon.