CN111941528A

CN111941528A - Perforating device of paper office supplies

Info

Publication number: CN111941528A
Application number: CN202010820063.7A
Authority: CN
Inventors: 韩鲁; 韩大磊
Original assignee: Hangzhou Linan Jiancheng Office Supplies Co Ltd
Current assignee: Shaanxi Lishengchuan Information Technology Service Co.,Ltd.
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2020-11-17
Anticipated expiration: 2040-08-14
Also published as: CN111941528B

Abstract

The invention belongs to the technical field of punching devices, and particularly relates to a punching device for paper office supplies, which comprises a bottom plate and a drill bit, wherein one end of the drill bit is fixedly connected with a butting device, the butting device comprises a cylinder, the surface of the cylinder is fixedly connected with a butting spring, one end of the butting spring is respectively and fixedly connected with a release block and a butting block, the top of the release block is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected to the bottom of a limiting rod, and the inner wall of the cylinder is connected with the limiting rod in a sliding manner. According to the invention, through the matching of the butt joint block and the clamping block, the butt joint device can be clamped on the butt joint, a user presses the release block, the release block drives the butt joint block to be close to the cylinder body through the connecting rod, so that the butt joint block is separated from the clamping block, the quick assembly and disassembly of the butt joint device are realized, the user can conveniently and quickly replace a drill bit according to the punching requirement, a large amount of time and energy of the user are saved, and the use is very facilitated.

Description

Perforating device of paper office supplies

Technical Field

The invention relates to the technical field of punching devices, in particular to a punching device for paper office supplies.

Background

The paper is a sheet made of plant fibers and used for writing, printing books and newspapers, packaging and the like, the paper is counted by sheets, the paper is generally divided into relief printing paper, newsprint paper, offset printing paper, coated paper, book cover paper, dictionary paper, copy paper, paperboard and the like, office supplies refer to auxiliary supplies used by people in daily work, the office supplies are mainly applied to enterprise units and cover a wide variety, the office supplies comprise a series of supplies related to work, such as file archives, desktop supplies, office equipment, financial supplies, consumable supplies and the like, the operation of the office supplies industry in China is well developed at present, the enterprise in the industry is gradually developed to industrialization and large-scale, the specialty, high efficiency and energy conservation are the development direction of the operation of the office supplies industry in China, the product quality of the operation production of the office supplies industry in China has international market competitiveness, and the research center of intelligent research data is along with the continuous expansion of the operation demand market and the increase of exports of the office supplies industry in China The operation of the office supplies industry in China is met with a new development opportunity, and the punching is a book publishing term, namely, holes which can be punched on binding openings of loose-leaf cards or various single books and pages and the like are punched according to a certain specification, the diameter of each hole is generally between three and five millimeters, the number of the punched holes is generally 2, and the number of the punched holes can be increased or reduced according to needs.

The perforating device of paper office supplies on the existing market has the following problems:

1. the existing equipment is difficult to adjust the height, the heights of users are different, so that a plurality of inconveniences are caused when the users use the equipment, meanwhile, because the lengths and the widths of all kinds of paper office supplies are different and the punching positions are different, the paper office supplies to be punched need to be positioned, and most of the existing equipment are provided with positioning auxiliary devices, so that the users are difficult to accurately position, the punching position deviation is easily caused, and the use is extremely difficult;

2. the most mounting structure of present equipment drill bit is complicated, because the aperture that different paper office supplies need is different, needs carry out the change of drill bit, and the user need spend plenty of time and energy and change the drill bit, and partial equipment needs the fixed paper office supplies of mode that the user used the hand when the operation of punching, has very big potential safety hazard, and the utmost point is unfavorable for the use.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a perforating device for paper office supplies, which solves the problems that the height of a user is different due to the difficulty in height adjustment of the conventional equipment, the user is inconvenient to use the equipment, meanwhile, because the length and the width of each paper office supply are different and the perforating position is different, the paper office supplies to be perforated need to be positioned, most of the conventional equipment are provided with positioning auxiliary devices, the user is difficult to accurately position and is easy to cause perforating position deviation, most of the conventional equipment perforating drill bits are complex in installation structure, the drill bits need to be replaced due to different hole diameters needed by different paper office supplies, the user needs to spend a large amount of time and effort to replace the drill bits, and meanwhile, when part of the equipment is used for perforating, the paper office supplies need to be fixed by hand of the user, has great potential safety hazard and is not beneficial to the use.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a punching device for paper office supplies comprises a bottom plate and a drill bit, wherein one end of the drill bit is fixedly connected with a butt joint device, the butt joint device comprises a cylinder body, the surface of the cylinder body is fixedly connected with a butt joint spring, one end of the butt joint spring is respectively and fixedly connected with a release block and a butt joint block, the top of the release block is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected to the bottom of a limiting rod, the inner wall of the cylinder body is slidably connected with a limiting rod, one end of the limiting rod is respectively and fixedly connected to the surfaces of the release block and the butt joint block, the top of the bottom plate is respectively and fixedly connected with a lower fixing block and a supporting block, the inner wall of the supporting block is rotatably connected with a first threaded rod through a bearing, the surface of the first threaded rod is connected with a threaded sliding plate through external, the two lifting rotating rods are mutually rotatably connected through the rotating rods, one end of each lifting rotating rod is respectively rotatably connected with an upper fixed block and a first sliding block through the rotating rods, one side of each upper fixed block is fixedly connected with a second sliding rod, the inner wall of each first sliding block is slidably connected to the surface of the second sliding rod, the top of each upper fixed block is fixedly connected with a substrate, a large through hole is formed in the surface of the substrate, the top of the substrate is fixedly connected with a supporting rod, one end of the supporting rod is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with a transfer block, the bottom of the transfer block is respectively and fixedly connected with a protection spring and a power motor, one end of the protection spring is fixedly connected with a protection ring, the output end of the power motor is fixedly connected with, the utility model discloses a novel anti-theft device, including base plate, threaded rod, two-way threaded rod, auxiliary positioning plate, main positioning plate, riser, bearing, two-way threaded rod, auxiliary positioning plate, main positioning plate, base plate, the inside wall of base plate passes through the bearing and rotates respectively to be connected with two-way threaded rod and No. two threaded rod, the surface of two-way threaded rod has auxiliary positioning plate through external screw thread threaded connection, auxiliary positioning plate's bottom sliding connection is.

As a preferred technical scheme of the invention, one side of the lower fixing block is fixedly connected with a first sliding rod, and the inner wall of the threaded sliding plate is connected to the surface of the first sliding rod in a sliding manner.

As a preferable technical scheme, one end of the first threaded rod is fixedly connected with a lifting handle, one end of the second threaded rod and two ends of the bidirectional threaded rod are both fixedly connected with adjusting handles, and anti-skidding grooves are formed in the surfaces of the lifting handle and the adjusting handles.

As a preferable technical scheme of the invention, the top of the protection ring is fixedly connected with a third sliding rod, and the surface of the third sliding rod is connected to the inner wall of the transfer block in a sliding manner.

As a preferred technical scheme of the invention, the lower end face of the clamping block is an arc face, and the upper end face of the butt-joint block is an arc face.

As a preferable technical scheme of the invention, a cross groove is formed in the inner top wall of the butt joint, a cross block is fixedly connected to the top of the column body, and the cross block is matched with the cross groove.

As a preferable technical scheme of the invention, the inner wall of the butt joint is fixedly connected with a guide strip, the surface of the column body is provided with a guide groove, and the guide groove is matched with the guide strip.

According to a preferable technical scheme of the invention, the top of the base plate is provided with a dovetail groove, and the bottom of the auxiliary positioning plate is connected with the dovetail groove in a sliding manner through a sliding block.

As a preferable technical scheme of the invention, the top of the vertical plate is provided with an observation groove, and the top of the sliding plate and the inner bottom wall of the dovetail groove are provided with scales.

As a preferable technical scheme of the invention, the bottom of the base plate is provided with an external thread, and the bottom of the base plate is connected with a scrap collecting box through the external thread.

(III) advantageous effects

Compared with the prior art, the punching device for the paper office supplies provided by the invention has the following beneficial effects:

1. this perforating device of paper office supplies, through the cooperation of a threaded rod and lift bull stick, when the user rotates the lift handle clockwise, the downward fixed block removal of screw thread slide under the effect of the screw thread thrust of a threaded rod, screw thread slide and lower fixed block can push away the lift bull stick near the in-process, the lift bull stick rotates and upwards pushes up the base plate to realize the regulation of equipment height, can adapt to different height users' use custom, it is more convenient to use.

2. Through the cooperation of vice locating plate and main locating plate, can fix a position paper office supplies's trilateral, through the cooperation of No. two threaded rods and two-way threaded rod, the person of facilitating the use adjusts the position of vice locating plate and main locating plate to carry out the accurate positioning to the paper office supplies of different specifications, very big improvement the degree of accuracy of the position of punching, very be favorable to the use.

3. This perforating device of paper office supplies through the cooperation of butt joint piece and joint piece, can with the butt joint device joint to the butt joint on, the user presses down the release piece, the release piece passes through the connecting rod and drives the butt joint piece and press close to the cylinder for the butt joint piece breaks away from the joint piece, thereby realizes the quick assembly disassembly to butt joint device, and the person of facilitating the use has saved a large amount of time and efforts of user according to the demand quick replacement drill bit that punches, facilitates the use more.

4. Play the guard action to the drill bit through the guard ring, avoid the mistake to touch and hinder the people, when the operation of punching, the guard ring can drill the paper office supplies of conflicting one step earlier, when conflicting paper office supplies fixed, through the shrink of protection spring, also do not influence the removal of drill bit and the operation of punching, avoided the user with the potential safety hazard that the fixed paper office supplies of hand brought, very be favorable to the use.

Drawings

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

FIG. 2 is a side view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2;

FIG. 5 is an enlarged view of the structure of FIG. 3 at B in accordance with the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 1 at C according to the present invention;

FIG. 7 is a schematic view of the connection between the butt joint and the guide strip according to the present invention;

fig. 8 is a schematic structural diagram of the docking device of the present invention.

In the figure: 1. a base plate; 2. a lower fixed block; 3. a support block; 4. a first threaded rod; 5. a lifting handle; 6. a threaded slide plate; 7. a drill bit; 8. a docking device; 801. a cylinder; 802. a cross block; 803. a guide groove; 804. a docking spring; 805. releasing the block; 806. a butt joint block; 807. a limiting rod; 808. a connecting rod; 9. a first sliding rod; 10. a lifting rotating rod; 11. an upper fixed block; 12. a first sliding block; 13. a second sliding rod; 14. a substrate; 15. a support bar; 16. a top plate; 17. an electric telescopic rod; 18. a transfer block; 19. a protection spring; 20. a guard ring; 21. a third sliding rod; 22. a power motor; 23. a butt joint; 24. a cross groove; 25. a clamping block; 26. a guide strip; 27. a bidirectional threaded rod; 28. a secondary positioning plate; 29. a dovetail groove; 30. a large through hole; 31. a second threaded rod; 32. a main positioning plate; 33. a sliding plate; 34. a vertical plate; 35. an observation tank; 36. adjusting the handle; 37. debris collection box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-8, the present invention provides the following technical solutions: a perforating device for paper office supplies comprises a bottom plate 1 and a drill bit 7, wherein one end of the drill bit 7 is fixedly connected with a butting device 8, the butting device 8 comprises a cylinder 801, the surface of the cylinder 801 is fixedly connected with a butting spring 804, one end of the butting spring 804 is respectively fixedly connected with a release block 805 and a butting block 806, the top of the release block 805 is fixedly connected with a connecting rod 808, one end of the connecting rod 808 is fixedly connected with the bottom of a limiting rod 807, the inner wall of the cylinder 801 is slidably connected with the limiting rod 807, one end of the limiting rod 807 is respectively fixedly connected with the surfaces of the release block 805 and the butting block 806, the top of the bottom plate 1 is respectively fixedly connected with a lower fixed block 2 and a supporting block 3, the inner wall of the supporting block 3 is rotatably connected with a first threaded rod 4 through a bearing, the surface of the first threaded rod 4 is connected with a threaded sliding plate 6 through external threads, two lifting rotating rods 10 are mutually rotatably connected through rotating rods, one end of each lifting rotating rod 10 is respectively rotatably connected with an upper fixing block 11 and a first sliding block 12 through the rotating rods, one side of the upper fixing block 11 is fixedly connected with a second sliding rod 13, the inner wall of the first sliding block 12 is slidably connected with the surface of the second sliding rod 13, the top of the upper fixing block 11 is fixedly connected with a base plate 14, the surface of the base plate 14 is provided with a large through hole 30, the top of the base plate 14 is fixedly connected with a supporting rod 15, one end of the supporting rod 15 is fixedly connected with a top plate 16, the bottom of the top plate 16 is fixedly connected with an electric telescopic rod 17, one end of the electric telescopic rod 17 is fixedly connected with a rotating block 18, the bottom of the rotating block 18 is respectively and fixedly connected with a protection spring 19 and a power motor 22, one end of the protection spring 19 is fixedly connected with a protection ring 20, the inside wall of base plate 14 rotates respectively through the bearing and is connected with two-way threaded rod 27 and No. two threaded rod 31, there is vice locating plate 28 on the surface of two-way threaded rod 27 through external screw thread threaded connection, the bottom sliding connection of vice locating plate 28 is at the top of base plate 14, there is main locating plate 32 on the surface of No. two threaded rod 31 through external screw thread threaded connection, the fixed surface of main locating plate 32 is connected with sliding plate 33, the top fixedly connected with riser 34 of base plate 14, the surface sliding connection of sliding plate 33 is at the inner wall of riser 34.

In the embodiment, through the cooperation of the first threaded rod 4 and the lifting rotating rod 10, when a user rotates the lifting handle 5 clockwise, the threaded sliding plate 6 moves downwards to the fixed block 2 under the action of the thread thrust of the first threaded rod 4, the threaded sliding plate 6 and the lower fixed block 2 push the lifting rotating rod 10 in the approaching process, the lifting rotating rod 10 rotates and pushes up the substrate 14, so that the adjustment of the equipment height is realized, the use habits of users with different heights can be adapted, meanwhile, through the cooperation of the auxiliary positioning plate 28 and the main positioning plate 32, three sides of paper office supplies can be positioned, through the cooperation of the second threaded rod 31 and the bidirectional threaded rod 27, the users can conveniently adjust the positions of the auxiliary positioning plate 28 and the main positioning plate 32, thereby accurately positioning office supplies with different specifications, and greatly improving the accuracy of the punching position, the docking device 8 can be clamped on the docking head 23 by the matching of the butting block 806 and the clamping block 25, the user presses the releasing block 805, the releasing block 805 drives the butting block 806 to be close to the column 801 through the connecting rod 808, so that the butting block 806 is separated from the clamping block 25, thereby realizing the rapid disassembly and assembly of the butting device 8, facilitating the user to rapidly replace the drill bit 7 according to the punching requirement, saving a great deal of time and energy of the user, meanwhile, the protective ring 20 protects the drill bit 7 to prevent people from being touched by mistake, and when the drilling operation is carried out, the protective ring 20 will firstly press against the paper office supplies by the drill 7, and at the same time press against and fix the paper office supplies, through the shrink of protection spring 19, also do not influence the removal and the operation of punching of drill bit 7, avoided the user with the fixed paper office supplies of hand potential safety hazard that brings, very be favorable to using.

Specifically, one side of lower fixed block 2 is fixedly connected with slide bar 9 No. one, and the inner wall sliding connection of screw thread slide 6 is on slide bar 9's surface No. one.

In this embodiment, slide bar 9 carries on spacingly to screw thread slide 6 through one, has improved the smooth and easy degree of screw thread slide 6 operation, is favorable to the use.

Specifically, the one end fixedly connected with lifting handle 5 of threaded rod 4, the equal fixedly connected with in both ends of the one end of No. two threaded rod 31 and two-way threaded rod 27 adjust handle 36, and anti-skidding groove has all been seted up on lifting handle 5 and the surface of adjusting handle 36.

In this embodiment, through the cooperation of lift handle 5 and regulation handle 36, convenience of customers goes up and down and the regulation of the position of punching to equipment, is favorable to using.

Specifically, a third slide rod 21 is fixedly connected to the top of the protection ring 20, and the surface of the third slide rod 21 is slidably connected to the inner wall of the transfer block 18.

In this embodiment, the third sliding rod 21 can limit the protection ring 20, so as to prevent the protection ring 20 from shifting, which is very beneficial to use.

Specifically, the lower end surface of the clamping block 25 is an arc surface, and the upper end surface of the butt-joint block 806 is an arc surface.

In this embodiment, when the lower end surface of the clamping block 25 is abutted against the upper end surface of the abutting block 806, a mutual radial driving force is generated, so that the drill bit 7 can be more conveniently mounted.

Specifically, a cross groove 24 is formed in the inner top wall of the butt joint 23, a cross block 802 is fixedly connected to the top of the column 801, and the cross block 802 is matched with the cross groove 24.

In this embodiment, the cross-shaped groove 24 and the cross-shaped block 802 are matched to increase the stability between the butt joint 23 and the column 801, which is beneficial to transmitting the power of the power motor 22 to the drill 7.

Specifically, the inner wall of the butt joint 23 is fixedly connected with a guide bar 26, the surface of the column 801 is provided with a guide groove 803, and the guide groove 803 is matched with the guide bar 26.

In this embodiment, through the cooperation of the guide groove 803 and the guide strip 26, the user can conveniently position the docking device 8 and the docking head 23, and the user can install the docking device 8 more conveniently.

Specifically, the top of the base plate 14 is provided with a dovetail groove 29, and the bottom of the secondary positioning plate 28 is slidably connected with the dovetail groove 29 through a slider.

In this embodiment, the auxiliary positioning plate 28 is limited by the dovetail groove 29, so that the auxiliary positioning plate 28 runs more smoothly, and the use is very facilitated.

Specifically, the top of the vertical plate 34 is provided with an observation groove 35, and the top of the sliding plate 33 and the inner bottom wall of the dovetail groove 29 are provided with scales.

In this embodiment, through the cooperation of observation groove 35 and scale, contrast when the person of facilitating the use adjusts the position of punching to more accurate location punching position.

Specifically, the bottom of the base plate 14 is provided with an external thread, and the bottom of the base plate 14 is connected with a scrap collecting box 37 through the external thread.

In this embodiment, collect the piece that the perforation produced through piece collection case 37, the subsequent cleaning work of person of facilitating the use is very favorable to using.

The working principle and the using process of the invention are as follows: when the height of the equipment needs to be adjusted, a user holds the lifting handle 5 to clockwise rotate the first threaded rod 4, the first threaded rod 4 pushes the threaded sliding plate 6 to approach the lower fixing block 2 through the threaded thrust, in the approaching process, the threaded sliding plate 6 and the lower fixing block 2 jointly push the lifting rotating rod 10, so that the lifting rotating rod 10 rotates and lifts the upper fixing block 11 upwards, the upper fixing block 11 pushes the base plate 14 to move upwards, the height of the base plate 14 is adjusted, when the equipment needs to position paper office supplies, the target positions of the auxiliary positioning plate 28 and the main positioning plate 32 are determined according to the specifications of the paper office supplies, the two-way threaded rod 27 is clockwise rotated, the two-way threaded rod 27 pushes the two auxiliary positioning plates 28 to be away from each other through the external thread thrust, the scales in the dovetail groove 29 are compared in the moving process until the auxiliary positioning plate 28 reaches the target, the adjusting handle 36 pushes the main positioning plate 32 to move through the thrust of the screw thread, the main positioning plate 32 drives the sliding plate 33 to move, the sliding plate 33 slides on the inner wall of the vertical plate 34, the scale on the top of the sliding plate 33 is observed through the observation groove 35, after the target position is reached, the rotation of the adjusting handle 36 is stopped, paper office supplies are placed on the top of the base plate 14, three sides of the paper office supplies are respectively aligned with the main positioning plate 32 and the auxiliary positioning plate 28, the electric telescopic rod 17 and the power motor 22 are opened to start drilling operation, the electric telescopic rod 17 telescopically pushes the switching block 18 to descend, the switching block 18 pushes the protection ring 20 to descend through the protection spring 19 until the protection ring 20 abuts against the paper office supplies, the protection ring 20 is clamped and fixed on the top of the base plate 14, the stability of the paper office supplies in the drilling process is maintained, the switching block 18 continues to descend, the protection, the butt joint 23 is continuously rotated in the descending process of the power motor 22, the butt joint 23 rotates the butt joint device 8 through the cross groove 24 and the cross block 802, the butt joint device 8 drives the drill bit 7, the drill bit 7 gradually butts against paper office supplies and completes drilling in the descending process of the power motor 22, chips generated by drilling fall into the chip collection box 37 through the large through hole 30 under the action of gravity, after the drilling operation is completed, a user rotates the chip collection box 37 clockwise to remove the chips in the chip collection box 37, after the completion, the chip collection box 37 rotates anticlockwise and resets, when the aperture requirement changes, the user holds the protection ring 20 with one hand and pushes upwards, the protection spring 19 compresses to expose the butt joint 23 and the butt joint device 8, the other hand of the user holds the two release blocks 805, the release blocks 805 move along the limiting rod 807 and drive the butt joint block 806 through the connecting rod 808, make butt joint piece 806 deviate from joint piece 25, the user takes out interfacing apparatus 8 downwards, and change the drill bit 7 of suitable aperture, aim at the guide way 803 of its interfacing apparatus 8 and the gib block 26 is impressed, the in-process of impressing, butt joint piece 806 contradicts joint piece 25, butt joint piece 806 removes and compresses gag lever post 807 under the promotion of cambered surface, when butt joint piece 806 surpassed joint piece 25, gag lever post 807 releases elasticity and outwards pushes out butt joint piece 806, butt joint piece 806 and joint piece 25 block, cross piece 802 gets into inside cross recess 24, thereby realize the change to drill bit 7.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a perforating device of paper office supplies, includes bottom plate (1) and drill bit (7), its characterized in that: one end of the drill bit (7) is fixedly connected with a butt joint device (8), the butt joint device (8) comprises a cylinder (801), a butt joint spring (804) is fixedly connected to the surface of the cylinder (801), one end of the butt joint spring (804) is respectively fixedly connected with a release block (805) and a butt joint block (806), the top of the release block (805) is fixedly connected with a connecting rod (808), one end of the connecting rod (808) is fixedly connected to the bottom of a limiting rod (807), the inner wall of the cylinder (801) is slidably connected with a limiting rod (807), one end of the limiting rod (807) is respectively fixedly connected to the surfaces of the release block (805) and the butt joint block (806), the top of the bottom plate (1) is respectively fixedly connected with a lower fixing block (2) and a supporting block (3), and the inner wall of the supporting block (3) is rotatably connected with a first threaded rod, the surface of the first threaded rod (4) is connected with a threaded sliding plate (6) through external threads and threads, the threaded sliding plate (6) and the inner wall of the lower fixed block (2) are connected with a lifting rotating rod (10) through rotating rods in a rotating mode, the two lifting rotating rods (10) are connected through rotating rods in a rotating mode, one end of each lifting rotating rod (10) is connected with an upper fixed block (11) and a first sliding block (12) through rotating rods in a rotating mode, one side of the upper fixed block (11) is fixedly connected with a second sliding rod (13), the inner wall of the first sliding block (12) is connected to the surface of the second sliding rod (13) in a sliding mode, the top of the upper fixed block (11) is fixedly connected with a base plate (14), a large through hole (30) is formed in the surface of the base plate (14), a supporting rod (15) is fixedly connected to the top of the base plate (14), and a, the bottom fixedly connected with electric telescopic handle (17) of roof (16), the one end fixedly connected with switching piece (18) of electric telescopic handle (17), the bottom of switching piece (18) is fixedly connected with protection spring (19) and motor power (22) respectively, the one end fixedly connected with protection ring (20) of protection spring (19), the output fixedly connected with butt joint (23) of motor power (22), the inner wall fixedly connected with joint piece (25) of butt joint (23), the inside wall of base plate (14) rotates respectively through the bearing and is connected with two-way threaded rod (27) and No. two threaded rod (31), the surface of two-way threaded rod (27) has vice locating plate (28) through external screw thread threaded connection, the bottom sliding connection of vice locating plate (28) is at the top of base plate (14), the surface of No. two threaded rod (31) has main locating plate (32) through external screw thread threaded connection, the surface of the main positioning plate (32) is fixedly connected with a sliding plate (33), the top of the base plate (14) is fixedly connected with a vertical plate (34), and the surface of the sliding plate (33) is slidably connected to the inner wall of the vertical plate (34).

2. The perforating device for paper office supplies of claim 1, wherein: one side fixedly connected with slide bar (9) of lower fixed block (2), the inner wall sliding connection of screw thread slide (6) is on the surface of slide bar (9).

3. The perforating device for paper office supplies of claim 1, wherein: the one end fixedly connected with lift handle (5) of threaded rod (4), equal fixedly connected with in both ends of the one end of No. two threaded rod (31) and two-way threaded rod (27) adjusts handle (36), anti-skidding groove has all been seted up on the surface of lift handle (5) and regulation handle (36).

4. The perforating device for paper office supplies of claim 1, wherein: the top of the protection ring (20) is fixedly connected with a third sliding rod (21), and the surface of the third sliding rod (21) is connected to the inner wall of the transfer block (18) in a sliding mode.

5. The perforating device for paper office supplies of claim 1, wherein: the lower end face of the clamping block (25) is an arc face, and the upper end face of the butt joint block (806) is an arc face.

6. The perforating device for paper office supplies of claim 1, wherein: the inner top wall of the butt joint (23) is provided with a cross groove (24), the top of the column body (801) is fixedly connected with a cross block (802), and the cross block (802) is matched with the cross groove (24).

7. The perforating device for paper office supplies of claim 1, wherein: the inner wall of the butt joint (23) is fixedly connected with a guide strip (26), the surface of the column body (801) is provided with a guide groove (803), and the guide groove (803) is matched with the guide strip (26).

8. The perforating device for paper office supplies of claim 1, wherein: the top of the base plate (14) is provided with a dovetail groove (29), and the bottom of the auxiliary positioning plate (28) is connected with the dovetail groove (29) in a sliding mode through a sliding block.

9. The perforating device for paper office supplies of claim 1, wherein: an observation groove (35) is formed in the top of the vertical plate (34), and scales are arranged on the top of the sliding plate (33) and the inner bottom wall of the dovetail groove (29).

10. The perforating device for paper office supplies of claim 1, wherein: the bottom of base plate (14) is provided with the external screw thread, there is piece centralized box (37) bottom of base plate (14) through external screw thread threaded connection.