CN2915425Y

CN2915425Y - Hand-operated hole-tapering device

Info

Publication number: CN2915425Y
Application number: CN 200620034905
Authority: CN
Inventors: 罗斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-12
Filing date: 2006-07-12
Publication date: 2007-06-27
Anticipated expiration: 2016-07-12

Abstract

The utility model relates to a manual cone hole-boring machine which is especially suitable for boring cone holes for examination papers. This cone hole-boring machine is comprised by a support 1, a handle 2, a coning rod 3, a cross rod 4, a coning rod sleeve 5, a return spring 6, a pin bolt 9, and a sliding slot 7 etc. An integral support whose shape is similar to the characher'Wei' is formed by the fixed connection between the support 1 and the coning rod sleeve 5, above the integral support, one end of the handle 2 is movably connected to the integral support through the pin bolt 9, which is the lever pivot of the handle 2, the movable connection between the sliding slot 7 fixed inside the 'cavity' of the handle 2 and the cross rod 4 on the top end of the coning rod 3 makes the lever force of the handle 2 fall on the coning rod 3 which then moves upward and downward in the coning rod sleeve 5 and thus pierces through the paper, and returns to the original position under the function of the return spring 6. This cone hole-boring machine is with simple structure, and convenient with ease. When using, only need to put the papers need boring cone holes between the cone tip and the support base, let the cone tip point at the position to be bored, press down the free end of the handle 2 until the paper is pierced through, lift the handle 2 slightly, the coning rod will leave the paper automatically and return to the original position.

Description

Manual taper hole device

Technical field:

It is power with subordinate's pressure that the utility model relates to a kind of, directly the taper hole device of taper hole on paper.

Background technology:

Every school holds the examination of certain grade, all can bind into book form with traditional thread binding ordering with the examination paper punching on the examination hall, gos over examination papers.Card punch on the market uses well at present, and volume is big mostly, and price is expensive, easily, and bad again use.Therefore, a lot of schools have to select traditional bradawl taper hole for use, effort, time-consumingly do not say, and the hole often have deflection up and down.

Summary of the invention:

Manually the taper hole device is made up of support, handle, awl bar, cross bar, chute, pin, awl rod bush, return spring and pinprick.Vertical fixing the awl rod bush on the end points of " Contraband " shape support top, form " defending " font integral support, above integral support, near the position of awl rod bush, flexibly connecting an end of handle with pin, constituting with the handle is the fulcrum of lever, when handle moves down, handle is directly put forth effort on the awl bar in the awl rod bush, makes its thorn down, under the frame bottom reaction force, paper is pierced, thereby achieves the goal.

In such scheme, handle and the changing angle in awl bar junction when moving down in order to adapt to handle are equipped with and bore the chute that bar upper end cross bar is complementary, simultaneously in " abdominal cavity " of handle, finish the awl bar that enters paper after the perforation in order to make, automatically break away from paper, get back to initial position, return spring is housed, below support, also have a pinprick, allow the awl bar can continue thorn one segment distance down, enlarge the aperture on the paper.

The beneficial effects of the utility model are:

1. simple in structure, one-handed performance, laborsaving, single hole is success once

2. the punching location is bored point and is referred to Na Cina flexibly, and the hole is vertical with paper, the shape unanimity;

4. do not destroy font, even the hole mistake is beaten on word, only need the hole is floating, still can recover font;

Description of drawings:

Illustration is a structural representation of the present utility model:

Wherein: 1. support, 2 handles, 3. awl bar, 4 cross bars, 5 awl rod bush, 6 return springs, 7 chutes, 8 pinpricks, 9 pins.

The specific embodiment:

Bradawl card punch shown in illustration, vertical fixing connects awl rod bush 5 on the end points above the support 1, support 1 top flexibly connects an end of handle 2 with Xiao Ding 9 near awl rod bush 5 places, is fixed with chute 7 in ' abdominal cavity ' of handle 2, to bore bar 3 hypomeres is inserted in the awl rod bush 5, epimere puts return spring 6, and cross bar 4 enters in the chute 7, flexibly connects, in awl bar 3 lower ends and support 1 corresponding position, have pinprick 8.

During use, only need examination paper is put between awl bar 3 and support 1 base, the position that allows the tip alignment of awl bar 3 want acanthopore presses down the end that handle 2 does not have connection, after awl bar 3 pierced through paper, the handle 2 of gently raising one's hand was under the effect of return spring 6, awl bar 3 rises, and breaks away from paper, gets back to initial position.

Claims

1. manual taper hole device, it is characterized in that: manual fixedly connected awl rod bush 5 on the support 1 of taper hole device, close awl rod bush 5 positions on support 1 top, flexibly connecting an end of handle 2 with pin 9, in handle 2 ' abdominal cavity ', be fixed with and bore the chute 7 that the cross bar 4 of bar 3 upper ends is complementary, cross bar 4 flexibly connects with chute 7, and support 1 base is provided with a pinprick;

2. manual taper hole device according to claim 1 is characterized in that: handle 2 is movably connected on the support 1, flexibly connects by the cross bar 4 of chute 7 with awl bar 3 tops, makes handle 2 put forth effort on awl bar 3 in the mode of lever force;

3. manual taper hole device according to claim 1 is characterized in that: awl bar 3 tops are with return spring 6;

4. manual taper hole device according to claim 1 is characterized in that: awl bar 3 moves up and down in awl rod bush 5, awl bar 3 direct acanthopores;