CN213617090U

CN213617090U - Portable accounting document perforating device

Info

Publication number: CN213617090U
Application number: CN202022547686.XU
Authority: CN
Inventors: 璧靛博; 赵岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-06
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a portable accounting document perforating device, which comprises a housin, the inside pivoted fluted drill that sets up of casing, fluted drill can be for casing along self axial motion, the inside power portion that is provided with of casing, power portion is including input main shaft and drill bit mount pad, fluted drill and drill bit mount pad coaxial arrangement, the relative slidable mounting of axial is followed with the drill bit mount pad to input main shaft, the outside coaxial rotation of drill bit mount pad is provided with the second rotary drum, follow the first rotary drum of axis slidable mounting in the second rotary drum, first rotary drum and input main shaft all rotate the installation with the casing, and are provided with reduction gears between input main shaft and the first rotary drum, this portable accounting document perforating device small in size, portable, and can guarantee to punch the terminal surface neatly level and smoothly.

Description

Portable accounting document perforating device

Technical Field

The utility model relates to a voucher drilling equipment technical field specifically is a portable accounting voucher perforating device.

Background

Accounting is when carrying out financial voucher and binding, because quantity is great, traditional stapler can't directly be bound and worn, consequently need punch in advance and bind, current perforating device majority is direct for vertical drilling equipment, its volume is great, and the majority is fixed mounting in the particular position in the office, can not hand-carry, and be difficult for moving, there is great inconvenience in the use, on the current market, also have some portable perforating device, but current perforating device relies on artifical powerful to press the head of punching, force the head of punching to pierce through the voucher, it is comparatively hard to use, and the face of punching is comparatively coarse and unsightly, can cause the voucher to tear even.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a portable accounting document perforating device, small in size, portable can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a portable accounting document perforating device comprises a shell, wherein a rotary twist drill is arranged in the shell, the twist drill can move along the self axial direction relative to the shell, the power part is arranged in the shell, the power part comprises an input main shaft and a drill bit mounting seat, the twist drill bit and the drill bit mounting seat are coaxially mounted, the input main shaft and the drill bit mounting seat are arranged in a relative sliding way along the axial direction, a second rotary cylinder is coaxially and rotatably arranged outside the drill bit mounting seat, a first rotary cylinder is arranged in the second rotary cylinder in a sliding way along the axis, the first rotary cylinder and the input main shaft are both rotationally arranged with the shell, and a speed reducing mechanism is arranged between the input main shaft and the first rotary drum, the rotating speed of the first rotary drum is less than that of the input main shaft, and a screw thread which is meshed with each other is arranged between the second rotary cylinder and the shell, and the axis of the screw thread is overlapped with the axis of the twist drill.

As a preferred technical scheme of the utility model, the end of the input main shaft is provided with a motor, the input main shaft is a spline shaft, one end of the drill bit mounting seat is provided with a spline groove, and the spline shaft and the spline groove are coaxially and slidably mounted;

through spline transmission, when making the drill bit mount pad feed in the axial, the required power of rotation can continue the input.

As a preferred technical solution of the present invention, the inner circumferential wall of the second rotary drum is provided with a sliding groove along the axis, the outer circumferential wall of the first rotary drum is provided with a sliding rail along the axis, and the sliding rail of the first rotary drum and the sliding groove of the second rotary drum are slidably mounted;

and a second power transmission route is constructed through the power transmission of the second rotary cylinder and the first rotary cylinder, so that a certain differential speed can exist between the rotating speeds of the second rotary cylinder and the twist drill, and the rotating speeds of the second rotary cylinder and the twist drill have a certain correlation, so that the rotating speed and the feeding speed of the twist drill can keep a set ratio.

As a preferred technical scheme of the utility model, the twist drill and the drill mounting seat are detachably mounted, the circumferential outer wall of the upper end of the twist drill is provided with a chute along the axis, and the drill mounting seat is internally provided with a sliding key which is mounted in a matching way with the chute of the twist drill;

through detachable installation, when using, can select the twist drill of suitable diameter according to actual demand.

As a preferred technical solution of the present invention, the reduction gear includes a driving gear, an inner gear ring, an intermediate gear and a driven gear, the driving gear is coaxially and fixedly mounted to the input spindle, the driven gear is coaxially and fixedly mounted to the first rotary drum, the driving gear and the intermediate gear are both engaged with the inner gear ring, the intermediate gear is engaged with the driven gear, and the inner gear ring and the intermediate gear are both rotatably mounted to the housing;

through reduction gears, realize the speed reduction of input main shaft to first revolving drum, and through the structural design of ring gear, reduce reduction gears's space and occupy to promote the convenience of carrying.

As a preferred technical scheme of the utility model, the end of the twist drill is provided with a holder, the surface of the holder is provided with a through hole for the twist drill to pass through, the holder can be drawn along the axial direction of the twist drill relative to the casing, and an elastic part is arranged between the holder and the casing;

the voucher to be bound is clamped by the clamping seat, so that the voucher cannot move in the punching process.

Compared with the prior art, the beneficial effects of the utility model are that: this portable accounting document perforating device adopts the inside mode that directly sets up fluted drill of casing, reduces whole volume, portable, and fluted drill can high-speed rotation, carries out the drilling operation to the voucher, and fluted drill can be by oneself low-speed axial feed in high-speed rotation to in the use, need not to heavily press down and feed, thereby promote and use experience.

Drawings

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

fig. 2 is a sectional view of the present invention;

FIG. 3 is a schematic view of the power section of the present invention;

fig. 4 is a schematic view of the twist drill of the present invention.

In the figure: the drill comprises a shell 1, a twist drill 2, a clamping seat 3, an elastic member 301, a power part 4, a first rotary cylinder 401, a second rotary cylinder 402, an input spindle 403, a motor 404, an inner gear ring 405, an intermediate gear 406 and a drill mounting seat 407.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a portable perforating device for accounting documents comprises a shell 1, wherein a rotary twist drill 2 is arranged inside the shell 1, the twist drill 2 can move along the axial direction of the shell 1, a power part 4 is arranged inside the shell 1, the power part 4 comprises an input main shaft 403 and a drill mounting seat 407, the twist drill 2 and the drill mounting seat 407 are coaxially mounted, the input main shaft 403 and the drill mounting seat 407 are axially and relatively slidably mounted, a second rotary cylinder 402 is coaxially and rotatably arranged outside the drill mounting seat 407, a first rotary cylinder 401 is axially and slidably mounted in the second rotary cylinder 402, the first rotary cylinder 401 and the input main shaft 403 are both rotatably mounted with the shell 1, a speed reducing mechanism is arranged between the input main shaft 403 and the first rotary cylinder 401, the rotating speed of the first rotary cylinder 401 is less than that of the input main shaft 403, and mutually meshed lead screw threads are arranged between the second rotary cylinder 402 and the shell 1, the axis of the screw thread overlaps the axis of the twist drill 2.

The end part of the input main shaft 403 is provided with a motor 404, the input main shaft 403 is a spline shaft, one end of the drill bit mounting seat 407 is provided with a spline groove, and the spline shaft and the spline groove are coaxially and slidably mounted;

through spline transmission, when the drill bit mounting seat 407 is axially fed, the power required by rotation can be continuously input.

The inner circumferential wall of the second rotary drum 402 is provided with a sliding groove along the axis, the outer circumferential wall of the first rotary drum 401 is provided with a sliding rail along the axis, and the sliding rail of the first rotary drum 401 and the sliding groove of the second rotary drum 402 are installed in a sliding manner;

through the power transmission of the second rotary drum 402 and the first rotary drum 401, a second power transmission route is constructed, so that a certain differential speed can exist between the rotation speed of the second rotary drum 402 and the rotation speed of the twist drill 2, and the rotation speeds have a certain relation, so that the rotation speed and the feeding speed of the twist drill 2 can keep a set ratio.

The twist drill 2 and the drill mounting seat 407 are detachably mounted, a chute is arranged on the outer circumferential wall of the upper end of the twist drill 2 along the axis, and a sliding key which is matched with the chute of the twist drill 2 is arranged in the drill mounting seat 407;

through detachable installation, when using, can select the twist bit 2 of suitable diameter according to actual demand.

The speed reducing mechanism comprises a driving gear, an inner gear ring 405, an intermediate gear 406 and a driven gear, the driving gear is coaxially and fixedly mounted with the input main shaft 403, the driven gear is coaxially and fixedly mounted with the first rotary drum 401, the driving gear and the intermediate gear 406 are both meshed with the inner gear ring 405, the intermediate gear 406 is meshed with the driven gear, and the inner gear ring 405 and the intermediate gear 406 are both relatively rotatably mounted with the shell 1;

through the reduction gears, the reduction of the input main shaft 403 to the first rotary drum 401 is realized, and through the structural design of the ring gear 405, the space occupation of the reduction gears is reduced, so that the carrying convenience is improved.

The end part of the twist drill 2 is provided with a clamping seat 3, the surface of the clamping seat 2 is provided with a through hole for the twist drill 2 to pass through, the clamping seat 3 can be drawn along the axial direction of the twist drill 2 relative to the shell 1, and an elastic part 301 is arranged between the clamping seat 3 and the shell 1;

the voucher to be bound is clamped by arranging the clamping seat 3, so that the voucher cannot move in the punching process.

When in use: the arranged voucher is clamped between the clamping seat 3 and the shell 1, the motor 404 is started at the moment to drive the twist drill 2 to rotate at a high speed, and the motor 404 drives the second sleeve 402 to rotate at a low speed after being decelerated by the speed reducing mechanism, and the screw threads between the second sleeve 402 and the shell 1 interact with each other to drive the twist drill 2 to axially feed at a low speed, so that the twist drill 2 performs drilling operation on the voucher.

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 a portable accounting document perforating device, includes casing (1), its characterized in that: the spiral drill comprises a shell (1), wherein a rotary spiral drill is arranged in the shell (1), the spiral drill can axially move relative to the shell (1), a power part (4) is arranged in the shell (1), the power part (4) comprises an input main shaft (403) and a drill mounting seat (407), the spiral drill and the drill mounting seat (407) are coaxially mounted, the input main shaft (403) and the drill mounting seat (407) are axially and relatively slidably mounted, a second rotary cylinder (402) is coaxially and rotatably arranged outside the drill mounting seat (407), a first rotary cylinder (401) is slidably mounted in the second rotary cylinder (402) along an axis, the first rotary cylinder (401) and the input main shaft (403) are rotatably mounted with the shell (1), a speed reducing mechanism is arranged between the input main shaft (403) and the first rotary cylinder (401), and the rotating speed of the first rotary cylinder (401) is less than that of the input main shaft (403), and a screw thread which is meshed with each other is arranged between the second rotary cylinder (402) and the shell (1), and the axis of the screw thread is overlapped with the axis of the twist drill.

2. The portable accounting document perforating device as claimed in claim 1, wherein: the end of the input main shaft (403) is provided with a motor (404), the input main shaft (403) is a spline shaft, one end of the drill bit mounting seat (407) is provided with a spline groove, and the spline shaft and the spline groove are coaxially and slidably mounted.

3. The portable accounting document perforating device as claimed in claim 1, wherein: the inner circumferential wall of the second rotary cylinder (402) is provided with a sliding groove along the axis, the outer circumferential wall of the first rotary cylinder (401) is provided with a sliding rail along the axis, and the sliding rail of the first rotary cylinder (401) and the sliding groove of the second rotary cylinder (402) are installed in a sliding mode.

4. The portable accounting document perforating device as claimed in claim 1, wherein: twist drill and drill bit mount pad (407) are detachable installation, the circumference outer wall of the upper end of twist drill sets up the spout along the axis, drill bit mount pad (407) inside set up with the feather key of twist drill spout cooperation installation.

5. The portable accounting document perforating device as claimed in any one of claims 1-4, wherein: the speed reducing mechanism comprises a driving gear, an inner gear ring (405), an intermediate gear (406) and a driven gear, the driving gear is coaxially and fixedly mounted with an input main shaft (403), the driven gear is coaxially and fixedly mounted with a first rotary drum (401), the driving gear and the intermediate gear (406) are both meshed with the inner gear ring (405), the intermediate gear (406) is meshed with the driven gear, and the inner gear ring (405) and the intermediate gear (406) are both rotatably mounted relative to the shell (1).

6. The portable accounting document perforating device as claimed in any one of claims 1-4, wherein: grip slipper (3) have been arranged to twist drill's tip, the grip slipper surface sets up the through-hole that supplies twist drill to pass through, twist drill axis direction twitching can be followed to relative casing (1) in grip slipper (3), be provided with between grip slipper (3) and casing (1) elastic component (301).

7. The portable accounting document perforating device as claimed in claim 5, wherein: grip slipper (3) have been arranged to twist drill's tip, the grip slipper surface sets up the through-hole that supplies twist drill to pass through, twist drill axis direction twitching can be followed to relative casing (1) in grip slipper (3), be provided with between grip slipper (3) and casing (1) elastic component (301).