CN216781995U

CN216781995U - Laboratory is with circular filter paper cutting means

Info

Publication number: CN216781995U
Application number: CN202220540793.6U
Authority: CN
Inventors: 龙家栋
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-06-21
Anticipated expiration: 2032-03-14

Abstract

A laboratory circular filter paper cutting tool relates to the technical field of filter paper cutting, and comprises a cutting chassis, a base, a rotating rod, a cutter bar and a positioning screw rod; the upper disc surface of the cutting chassis is provided with a magnet, the lower end surface of the base is provided with an iron block, the upper end surface of the base is fixed with a vertical rod sleeve, and the lower end of the rotating rod is rotatably inserted in the vertical rod sleeve; a horizontal through hole is formed in the middle rod body of the rotating rod, one end of the positioning screw rod is fixedly connected with the middle rod body of the cutter bar, the other end of the positioning screw rod penetrates through the horizontal through hole, and the rod bodies of the positioning screw rods are all provided with fastening nuts; a horizontal inserted link and a horizontal loop bar are respectively fixed at the top ends of the rotating rod and the cutter bar, and the horizontal inserted link is movably inserted with the horizontal loop bar correspondingly; a cutter is arranged in the center of the lower end face of the cutter bar, wheel frame plates are symmetrically fixed on two sides of the lower end face of the cutter bar, and idler wheels are arranged on the inner side plate faces of the wheel frame plates; this cutting means not only can improve cutting efficiency, cutting effect and filter paper roundness, can cut out the circular filter paper of different specifications as required moreover.

Description

Laboratory is with circular filter paper cutting means

Technical Field

The utility model relates to the technical field of filter paper cutting, in particular to a round filter paper cutting tool for a laboratory.

Background

Because various vessels in a laboratory have different specifications, the purchased filter paper is often required to be cut for the second time according to the shape of the vessel; when the traditional circular filter paper is cut, a circle line with a proper diameter specification needs to be drawn on the filter paper by compasses, and then the filter paper is cut along the circle line by scissors, so that the cutting roundness is not enough, the time is long, and the efficiency is low; if the marking pen of the compasses is directly changed into the cutter to rotate for cutting, the filter paper is easily cut to damage due to factors such as the unfolding of paper, the jumping of the cutter and the like in practical application, the waste is small, and the paper is easily pressed by hands to be cut accidentally.

Disclosure of Invention

In order to overcome the defects in the background art, the utility model discloses a round filter paper cutting tool for a laboratory, which can improve the cutting efficiency, the cutting effect and the filter paper roundness and can cut round filter paper with different specifications according to the requirements.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a round filter paper cutting tool for a laboratory comprises a cutting chassis, a base, a rotating rod, a cutter bar and a positioning screw rod; a magnet is embedded in the center of the upper disc surface of the cutting chassis, and the upper surface of the magnet is flush with the upper disc surface of the cutting chassis; an iron block with the lower surface flush with the lower end surface of the base is embedded in the center of the lower end surface of the base, a vertical rod sleeve is fixed in the center of the upper end surface of the base, and the lower end of the rotating rod is correspondingly rotatably inserted in the vertical rod sleeve; a horizontal through hole is formed in the middle rod body of the rotating rod, one end of the positioning screw rod is fixedly connected with the middle rod body of the cutter bar, the other end of the positioning screw rod penetrates through the horizontal through hole, and the rod bodies of the positioning screw rods, which are positioned on the two sides of the rotating rod, are respectively provided with a fastening nut; a horizontal inserted link and a horizontal loop bar are respectively fixed at the top ends of the rotating rod and the cutter bar, and the horizontal inserted link is movably inserted with the horizontal loop bar correspondingly; the cutter is installed to the lower terminal surface central authorities of cutter arbor, the lower terminal surface bilateral symmetry of cutter arbor is fixed with the wheel frame board, the axis is all installed along the radial gyro wheel in cutting chassis to the inboard face of wheel frame board.

Furthermore, the magnets are three in a regular triangle layout.

Further, the magnet is an electromagnet.

Further, the upper disc surface of the cutting chassis is provided with a plurality of annular cutting grooves with different diameters.

Furthermore, the rod body on the upper surface of the horizontal inserted rod is provided with a graduated scale along the axial direction.

Furthermore, a rubber tire is sleeved outside the rim of the roller, and when the rubber tire is pressed downwards to deform, the cutter is correspondingly abutted against the cutting chassis.

Further, a cutter storage cavity is formed in the lower portion of the cutter rod, and the cutter is hidden in the cutter storage cavity and can move up and down for positioning.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

according to the round filter paper cutting tool for the laboratory, the cutting chassis is used for magnetically attracting the fixed base, so that the filter paper can be clamped between the cutting chassis and the base to be fixed and spread to a certain degree while being conveniently and quickly disassembled and assembled;

the utility model discloses a round filter paper cutting tool for a laboratory, which is characterized in that a positioning screw and a fastening nut are utilized to distance the middle parts of a cutter bar and a rotating rod, and a horizontal inserted rod and a horizontal loop bar are movably inserted to limit the end parts, so that the cutter bar and the rotating rod are more stably fixed, and the phenomenon of structural looseness in the rotary cutting process is prevented;

according to the round filter paper cutting tool for the laboratory, the rollers are arranged on the two sides of the cutter, so that the function of pressing paper can be achieved, the cutter can be protected, and the cutter is prevented from being exposed to hurt people;

in conclusion, the circular filter paper cutting machine can improve the cutting efficiency, the cutting effect and the filter paper roundness, can cut circular filter paper with different specifications according to the requirements, and greatly reduces the use difficulty and risk of operators.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a schematic top view of the cutting base plate.

In the figure: 1. cutting the chassis; 2. a magnet; 3. a base; 4. an iron block; 5. a vertical rod sleeve; 6. positioning a screw rod; 7. tightening the nut; 8. a rotating rod; 9. a horizontal insertion rod; 10. a horizontal loop bar; 11. a cutter bar; 12. a roller; 13. a cutter; 14. a knife storage cavity; 15. and (4) annular cutting grooves.

Detailed Description

In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:

the first embodiment is as follows:

the circular filter paper cutting tool for the laboratory, which is described by combining the attached figures 1-2, comprises a cutting chassis 1, a base 3, a rotating rod 8, a cutter bar 11 and a positioning screw rod 6; a magnet 2 is embedded in the center of the upper disc surface of the cutting chassis 1, the upper surface of the magnet 2 is flush with the upper disc surface of the cutting chassis 1, an iron block 4 with the lower surface flush with the lower end surface of the base 3 is embedded in the center of the lower end surface of the base 3, the cutting chassis 1 is used for magnetically attracting the fixing base 3, and the filter paper can be clamped between the cutting chassis 1 and the base 3 to be fixed and spread to a certain degree while being conveniently and quickly disassembled and assembled; according to the requirement, the magnets 2 are three in a regular triangle layout, so that the magnetic attraction is more stable; in addition, the magnet 2 is an electromagnet, so that the base 3 can be easily taken up after power failure, and filter paper can be conveniently taken and laid;

a vertical rod sleeve 5 is fixed in the center of the upper end face of the base 3, and the lower end of the rotating rod 8 is correspondingly inserted into the vertical rod sleeve 5 in a rotating manner, so that the rotating rod 8 can rotate flexibly by taking the axis of the rotating rod 8 as a central line; a horizontal through hole is formed in the middle rod body of the rotating rod 8, one end of the positioning screw 6 is fixedly connected with the middle rod body of the cutter bar 11, the other end of the positioning screw passes through the horizontal through hole, and the rod bodies of the positioning screw 6, which are positioned on the two sides of the rotating rod 8, are respectively provided with a fastening nut 7; a horizontal inserting rod 9 and a horizontal sleeve rod 10 are respectively fixed at the top ends of the rotating rod 8 and the cutter bar 11, the horizontal inserting rod 9 is movably inserted into the horizontal sleeve rod 10 correspondingly, so that the distance between the cutter bar 11 and the rotating rod 8 can be conveniently adjusted to cut round filter papers with different diameters, the middle parts of the cutter bar 11 and the rotating rod 8 are spaced by utilizing a positioning screw rod 6 and a fastening nut 7, and the end parts of the cutter bar 11 and the rotating rod 8 are limited by movably inserting the horizontal inserting rod 9 and the horizontal sleeve rod 10, so that the cutter bar 11 and the rotating rod 8 are more stably fixed, and the phenomenon of structural looseness in the rotary cutting process is prevented; according to the requirement, the rod body on the upper surface of the horizontal insert rod 9 is provided with a graduated scale along the axial direction, so that the distance between the cutter rod 11 and the rotating rod 8 can be conveniently adjusted according to the graduated scale;

the center of the lower end face of the cutter rod 11 is provided with a cutter 13, wheel frame plates are symmetrically fixed on two sides of the lower end face of the cutter rod 11, the inner side plate faces of the wheel frame plates are respectively provided with a roller 12 with the axis along the radial direction of the cutting chassis 1, and the rollers 12 are arranged on two sides of the cutter 13, so that the paper pressing effect can be achieved, the cutter 13 can be protected, and the cutter is prevented from being exposed to hurt people; according to the requirement, the rubber tire is sleeved outside the rim of the roller 12, and when the rubber tire is pressed downwards to deform, the cutter 13 is correspondingly abutted against the cutting chassis 1, namely, the cutting state can be achieved only by pressing the cutter rod 11.

Example two:

the difference with the first embodiment is that the upper disc surface of the cutting chassis 1 is provided with a plurality of annular cutting grooves 15 with different diameters, so that circular filter papers with different diameters can be cut in a suitable manner, and the annular cutting grooves 15 are matched with the tool tip of the cutter 13, so that the effect of shearing the filter papers can be achieved, and the filter papers are prevented from being cut by blunt force; in addition, the lower part of cutter arbor 11 is equipped with and stores up sword chamber 14, and cutter 11 hides to be located and store up in the sword chamber 14 and can reciprocate the location, more does benefit to the protection tool bit and changes the cutting state.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims concerned.

Claims

1. The utility model provides a laboratory is with circular filter paper cutting means which characterized by: comprises a cutting chassis (1), a base (3), a rotating rod (8), a cutter bar (11) and a positioning screw rod (6); a magnet (2) is embedded in the center of the upper disc surface of the cutting chassis (1), and the upper surface of the magnet (2) is flush with the upper disc surface of the cutting chassis (1); an iron block (4) with the lower surface flush with the lower end surface of the base (3) is embedded in the center of the lower end surface of the base (3), a vertical rod sleeve (5) is fixed in the center of the upper end surface of the base (3), and the lower end of the rotating rod (8) is correspondingly rotatably inserted into the vertical rod sleeve (5); a horizontal through hole is formed in the middle rod body of the rotating rod (8), one end of the positioning screw rod (6) is fixedly connected with the middle rod body of the cutter bar (11), the other end of the positioning screw rod penetrates through the horizontal through hole, and the rod bodies of the positioning screw rod (6) positioned on the two sides of the rotating rod (8) are respectively provided with a fastening nut (7); a horizontal inserted link (9) and a horizontal loop bar (10) are respectively fixed at the top ends of the rotating rod (8) and the cutter bar (11), and the horizontal inserted link (9) is movably inserted with the horizontal loop bar (10) correspondingly; cutter (13) are installed to the lower terminal surface central authorities of cutter arbor (11), the lower terminal surface bilateral symmetry of cutter arbor (11) is fixed with the wheel frame board, the inboard face of wheel frame board all installs axis along radial gyro wheel (12) in cutting chassis (1).

2. The laboratory circular filter paper cutting tool as set forth in claim 1, wherein: the magnets (2) are arranged in a regular triangle layout.

3. The laboratory circular filter paper cutting tool as set forth in claim 1, wherein: the magnet (2) is an electromagnet.

4. The laboratory circular filter paper cutting tool as set forth in claim 1, wherein: the upper disc surface of the cutting chassis (1) is provided with a plurality of annular cutting grooves (15) with different diameters.

5. The laboratory circular filter paper cutting tool as set forth in claim 1, wherein: the upper surface rod body of the horizontal inserted rod (9) is provided with a graduated scale along the axial direction.

6. The laboratory circular filter paper cutting tool as set forth in claim 1, wherein: the rubber tire is sleeved outside the rim of the roller (12), and when the rubber tire is pressed downwards to deform, the cutter (13) is correspondingly abutted against the cutting chassis (1).

7. The laboratory circular filter paper cutting tool as set forth in claim 1, wherein: the lower part of the cutter bar (11) is provided with a cutter storage cavity (14), and the cutter (13) is hidden in the cutter storage cavity (14) and can move up and down for positioning.