CN111607951A

CN111607951A - Quick cutter

Info

Publication number: CN111607951A
Application number: CN202010281673.4A
Authority: CN
Inventors: 曾凡洪; 任亦频
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-09-01

Abstract

The invention provides a quick cutter, which is characterized in that: including upper plate and hypoplastron, upper plate and hypoplastron are articulated to be set up, one side that the upper plate is towards the hypoplastron is equipped with two clamp plates, one side that the hypoplastron is towards the upper plate is equipped with two backup pads, and two clamp plates are located the outside of two backup pads respectively, be equipped with logical groove between two clamp plates, it is equipped with slidable blade to lead to the groove, is equipped with between two backup pads and cuts cut the groove, will during upper plate and hypoplastron lock, lead to the groove and be located cut groove top, the one end of blade is located logical inslot, and the other end is located cuts. Through with the upper plate with lower plate lock-in, realize the take-up to the gauze that will cut, overall structure is simple, convenient operation, can not be stained with the sword when making the gauze cut, and cut more easily, improve work efficiency, and whether the blade is worked, can not the outside all, do not have the potential safety hazard, can use at ease.

Description

Quick cutter

Technical Field

The invention relates to the field of auxiliary instruments, in particular to a quick cutter.

Background

Gauze is one of the most commonly used medical devices in hospitals and is suitable as a base material for medical dressings, dressings and the like. When bandaging the trauma, the nursing staff winds the gauze on the wound, and finally ties the gauze for fixation or bonds the gauze with an adhesive tape for fixation. Generally, when a nursing staff wraps a wound, gauze needs to be cut off, scissors are usually placed on a nursing trolley or a nursing tray so as to cut off the gauze, but the scissors are inconvenient to carry, a sharp knife point easily hurt people, and particularly when children wrap the wound, the children who move around are easily injured by the scissors. In the existing cutting device for gauze, the gauze can only be vertically cut, the gauze cannot be obliquely cut, the gauze is easy to waste when knotted and fixed, the existing cutting device easily cuts the gauze incompletely, the adhesion of the gauze is caused, the secondary cutting is required, and the efficiency is influenced.

Disclosure of Invention

The invention aims to overcome the defects of the traditional technology and provides the quick cutter which is simple in structure, can cut gauze thoroughly, and is safe and free of hidden danger.

The aim of the invention is achieved by the following technical measures: the utility model provides a quick cutter which characterized in that: including upper plate and hypoplastron, upper plate and hypoplastron are articulated to be set up, one side that the upper plate is towards the hypoplastron is equipped with two clamp plates, one side that the hypoplastron is towards the upper plate is equipped with two backup pads, and two clamp plates are located the outside of two backup pads respectively, be equipped with logical groove between two clamp plates, it is equipped with slidable blade to lead to the groove, is equipped with between two backup pads and cuts cut the groove, will during upper plate and hypoplastron lock, lead to the groove and be located cut groove top, the one end of blade is located logical inslot, and the other end is located cuts.

When finishing wrapping and cutting the gauze, the upper plate is positioned on the upper surface of the gauze, the lower plate is positioned on the lower surface of the gauze, and the length directions of the upper plate and the lower plate are along the width direction of the gauze, so that the gauze can be conveniently cut. Buckling an upper plate and a lower plate, pressing gauze, and finally, cutting the gauze to be positioned between a pressing plate and a supporting plate, continuing to buckle, supporting a section of gauze by the supporting plate, pressing the gauze on two sides of the gauze supported by the supporting plate, pressing the gauze on two sides downwards, simultaneously giving the tensile force of the gauze on the two sides to the gauze on the supporting plate by the gauze on the two sides under the stress, tensioning the gauze supported on the supporting plate under the tensile force of the gauze on the two sides, and until the upper plate is completely buckled on the lower plate, cutting the gauze by a sliding blade.

As a preferable scheme, the supporting plate is arranged along the length direction of the lower plate, the pressing plate is arranged along the length direction of the upper plate, the height of the supporting plate is greater than that of the pressing plate, and the width of the supporting plate is greater than that of the pressing plate. Through the aforesaid setting, after the complete lock of clamp plate, the space that holds the gauze and pass through has between clamp plate and the hypoplastron, and there is not the space between backup pad and the upper plate, it is direct to compress tightly the gauze, the gauze that the messenger is located between two backup pads is in taut state, can make the gauze still be in taut state when cutting, thereby can not be stained with the sword, conveniently cut, increase the thickness of backup pad can increase the holding surface to the gauze, improve the supporting effect of gauze, thereby improve the stability of gauze, make the gauze more stable when the cutting, convenient cutting, can not be stained with the sword.

Preferably, when the upper plate and the lower plate are fastened, the pressing plate outside each of the supporting plates is in contact with each other. Through the setting, the gauze can be tightly pressed between the pressing plate and the supporting plate, and is tensioned through a plurality of places, so that the stability of the gauze during cutting can be effectively improved.

As a preferred scheme, the one end of upper plate is equipped with two first engaging lugs, the one end of hypoplastron is equipped with two second engaging lugs, first engaging lug and second engaging lug pass through the hinge and connect, the cover is equipped with Y type torsional spring on the hinge, the both ends of Y type torsional spring all outwards extend and form first return strip and second return strip respectively, first return strip and hypoplastron parallel arrangement, second return strip and upper plate parallel arrangement, first return strip is installed at the hypoplastron upper surface, and second return strip is installed at the upper plate upper surface. Through the arrangement, the upper plate and the lower plate can be automatically returned after the gauze is cut, and the upper plate and the lower plate are not required to be manually opened.

As an optimal scheme, the both sides that lead to the groove all are equipped with the chute board, the chute board with form the spout between the upper plate, the spout with lead to groove parallel arrangement, the spout cooperation is provided with along its gliding slide, slide top fixedly connected with ejector pad, connect through the spliced pole between ejector pad and the slide, the one end of spliced pole with blade fixed connection, the other end is equipped with adjust knob. Through the arrangement, the push block is pushed, the sliding plate slides along the sliding groove, the sliding plate drives the connecting column to move together, and the connecting column drives the blade to move, so that the gauze is cut.

As an optimal scheme, the upper surface of the push block is fixedly provided with a locking sleeve, the inner diameter of the locking sleeve is equal to the outer diameter of the connecting rod, the locking sleeve is in threaded connection with a locking nut, and the diameter of one end of the threaded hole in the locking nut is larger than that of the other end of the threaded hole in the locking nut.

As an optimal scheme, the one end that the ejector pad was kept away from to the lock sleeve is equipped with a plurality of adjustment tank along length direction, and is a plurality of the adjustment tank sets up along the length direction of lock sleeve, the spliced pole is equipped with the round boss along circumference, and the boss setting is in adjust knob's below. Through the setting, boss restriction spliced pole is in the ascending position of the direction of perpendicular upper plate, during the installation, makes the spliced pole card can't the downstream again on the lock sleeve, realizes locking once more fixedly through lock sleeve and lock nut to the spliced pole, the stability of blade when increasing the slip.

As a preferred scheme, the blade includes connecting portion and the cutting part that is located connecting portion both sides, connecting portion and spliced pole fixed connection, the one end thickness and the width that cutting part and connecting portion are connected all with the thickness and the width correspondence of connecting portion equals.

As a preferable scheme, the thickness of the cutting part is smaller and smaller from one end close to the connecting part to one end far away from the connecting part, the cutting part is provided with cutting edges, and the two cutting edges are arranged in a way of deviating from each other. Through the arrangement, no matter which side is pushed by the push block, the gauze can be cut, after the gauze is cut once, the blade does not need to be pushed to return, the operation steps are saved and the efficiency is improved relative to the blade cut by the single blade edge.

As a preferable scheme, the cutting edge is located below the cutting portions, a direction of a connecting line between the two cutting portions is a length direction of the blade, an included angle between the cutting edge and the length direction of the blade is α, and the α is located between 20 ° and 40 °. Through the arrangement, alpha is the angle between the cutting edge and the gauze to be cut, the alpha is positioned between 20 degrees and 40 degrees, and the alpha is set to be 90 degrees relative to the alpha, namely the gauze is vertically cut, the edge curl of the gauze can be effectively reduced by cutting at a smaller angle, and the cutting is smoother.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that:

the invention provides a quick cutter, 1, through setting up upper plate and lower plate, set up the pressing plate on the upper plate, set up the shoe plate on the lower plate, when buckling the upper plate and lower plate, realize the straining to the gauze to be cut, the overall structure is simple, easy to operate, make the gauze not stick to the knife while cutting, and it is easier to cut, raise the working efficiency, and whether the blade works, will not face towards the outside, there is no potential safety hazard, can use at ease; 2. through promoting the ejector pad, make the blade slide along cutting cut groove, realize cutting to the gauze, all set up the cutting edge through the both sides at the blade, can push the ejector pad to which side no matter, all can realize the cutting to the gauze, after having carried out a cutting to the gauze, need not to promote the return with the blade, for the blade of single sword cutting, the operating is saved step, the efficiency is improved, the angle when cutting the gauze through the setting is between 20 ~ 40, can effectively reduce the turn-up of gauze, the messenger cuts more smoothly.

The invention is further described with reference to the following figures and detailed description.

Drawings

Fig. 1 is a schematic view of the overall structure of a quick cutter according to the present invention.

Fig. 2 is an overall sectional structure schematic view of a quick cutter of the present invention.

Fig. 3 is a schematic diagram of the structure of the upper plate of a quick cutter according to the present invention.

Fig. 4 is a schematic view of the lower plate structure of a quick cutter of the present invention.

Fig. 5 is a schematic structural view of a hinge shaft and a Y-shaped torsion spring of the quick cutter of the present invention.

Fig. 6 is a schematic view of a chute structure of a quick cutter of the present invention.

Fig. 7 is a schematic view of a connecting structure of a push block and a connecting column of the quick cutter of the invention.

Fig. 8 is a schematic view of the structure of a push block and a slide plate of a quick cutter according to the present invention.

Fig. 9 is a schematic view of the connecting post and blade structure of a quick cutter of the present invention.

Fig. 10 is a schematic longitudinal sectional view of a blade of a quick cutter of the present invention.

Fig. 11 is a sectional view showing a lock nut of a quick cutter according to the present invention.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b): as shown in fig. 1-11, a quick cutter comprises an upper plate 1 and a lower plate 2, in this embodiment, as shown in fig. 3-4, the upper plate 1 is a cuboid, the lower plate 2 is also a cuboid, one end of the upper plate 1 is hinged with one end of the lower plate 2, the upper plate 1 and the lower plate 2 are hinged along one end of the length direction, when the upper plate 1 and the lower plate 2 are fastened together, the upper plate 1 and the lower plate 2 are parallel, as shown in fig. 1, 3 and 4, two first connecting lugs 8 are arranged at the end where the upper plate 1 is hinged with the lower plate 2, two second connecting lugs 9 are arranged at the end where the lower plate 2 is hinged with the upper plate 1, the two first connecting lugs 8 and the two second connecting lugs 9 are sequentially staggered, as shown in fig. 1, a hinge shaft 6 penetrates through the middle of the upper plate 1 and the lower plate 2, as shown in fig. 5, a Y-shaped torsion spring 7 is sleeved on the hinge shaft 6, and first return strips and second return strips extending outwards are respectively arranged at two ends of the Y-shaped torsion spring 7, wherein, first return strip and hypoplastron 2 parallel arrangement, second return strip and upper plate 1 parallel arrangement, during the installation, install first return strip at hypoplastron 2 upper surfaces, the second return strip is installed at upper plate 1 upper surfaces, when pressing upper plate 1 and hypoplastron 2, upper plate 1 and hypoplastron 2 all can rotate along hinge 6, after loosening, upper plate 1 and hypoplastron 2 can the return under the effect of Y type torsional spring 7 first return strip and second return strip, be the acute angle setting between upper plate 1 and the hypoplastron 2 this moment, in this embodiment, upper plate 1 and hypoplastron 2 are 45. The length of the upper plate 1 is equal to the length of the lower plate 2, the width is equal, and the height is not limited.

As shown in fig. 1-4, a pressing plate 3 is installed on one side of the upper plate 1 close to the lower plate 2, and a supporting plate 4 is installed on one side of the lower plate 2 close to the upper plate 1, in this embodiment, two pressing plates 3 and two supporting plates 4 are provided, the two pressing plates 3 are arranged in parallel, and arranged along the length direction of the upper plate 1, as shown in figure 2, two press plates 3 are fixedly connected with the upper plate 1 through bolts, corresponding connecting holes are respectively arranged on the pressing plate 3 and the upper plate 1, bolts sequentially penetrate through the corresponding connecting holes to realize the fixation of the pressing plate 3 on the upper plate 1, the two supporting plates 4 are arranged in parallel, and is arranged along the length direction of the lower plate 2, as shown in fig. 2, two support plates 4 are fixedly connected with the lower plate 2 through bolts, corresponding connecting holes are formed in the supporting plate 4 and the lower plate 2, and bolts sequentially penetrate through the corresponding connecting holes to fix the supporting plate 4 on the lower plate 2. In this embodiment, all the connection holes of the upper plate 1, the lower plate 2, the support plate 4 and the press plate 3 are stepped holes, and the bolts connect the corresponding parts without exposing the outside.

As shown in fig. 2, after the upper plate 1 and the lower plate 2 are fastened, the two pressing plates 3 are respectively located at two sides of the two supporting plates 4, the height of the pressing plate 3 is smaller than that of the supporting plate 4, and the thickness of the pressing plate 3 is smaller than that of the supporting plate 4.

When finishing wrapping and cutting the gauze 5, the upper plate 1 is arranged on the upper surface of the gauze 5, the lower plate 2 is arranged on the lower surface of the gauze 5, and the length directions of the upper plate 1 and the lower plate 2 are along the width direction of the gauze 5, so that the gauze 5 can be conveniently cut. Buckling an upper plate 1 and a lower plate 2, pressing gauze 5, finally, placing the gauze 5 between the pressing plate 3 and a supporting plate 4, continuing to buckle, wherein the supporting plate 4 supports a section of gauze 5, the pressing plate 3 can press the gauzes 5 at two sides of the gauze 5 supported by the supporting plate 4, and the gauzes 5 at two sides are pressed downwards, the gauzes 5 at two sides are stressed and simultaneously give tensile force to the gauzes 5 at two sides on the supporting plate 4, at the moment, the gauzes 5 supported on the supporting plate 4 are tensioned under the tensile force of the gauzes 5 at two sides until the upper plate 1 is completely buckled on the lower plate 2, at the moment, as shown in figure 2, the height of the pressing plate 3 is smaller than that of the supporting plate 4, after the pressing plate 3 is completely buckled, a gap for accommodating the gauzes 5 to pass through is formed between the pressing plate 3 and the lower plate 2, and no gap is formed between the supporting plate 4 and the upper plate 1, directly pressing the gauzes, and in this embodiment, the side that clamp plate 3 is close to backup pad 4 and the side that backup pad 4 is close to clamp plate 3 contact each other, can realize compressing tightly of gauze 5 between clamp plate 3 and backup pad 4, in this embodiment, backup pad 4 thickness is 2 times of the thickness of clamp plate 3, the thickness of increase backup pad 4 can increase the holding surface to gauze 5, improve the supporting effect of gauze 5, thereby improve the stability of gauze 5, make gauze 5 more stable when the cutting, convenient cutting, can not be stained with the sword, secondly clamp plate 3 is used for pushing down gauze 5, it is mainly after the lock, it is fixed with gauze 5 between clamp plate 3 and the backup pad 4, consequently, its thickness need not too big.

As shown in fig. 2 and 3, the upper plate 1 is provided with a through groove 11 along the length direction, the through groove 11 is provided with a blade 22, the width of the through groove 11 is equal to the distance between the two support plates 4, a cutting groove 10 is arranged between the two support plates 4, the upper plate 1 and the lower plate 2 are buckled, the through groove 11 is positioned above the cutting groove 10, one end of the blade 22 is positioned in the through groove 11, the other end of the blade is positioned in the cutting groove 10, and the blade longitudinally crosses the joint of the through groove 11 and the cutting groove 10 for cutting the gauze 5. One side of the upper plate 1, which is far away from the lower plate 2, is fixedly connected with two chute plates 12, the two chute plates 12 are respectively arranged at two sides of the through groove 11, the concrete shape of the chute plates 12 is shown in figures 2 and 6, one end of each chute plate 12 is fixed on the upper plate 1 through a bolt, the other end of each chute plate 12 is provided with a convex plate 13, the convex plates 13 and the chute plates 12 are integrally arranged, the upper surfaces of the convex plates 13 and the upper surfaces of the chute plates 12 are arranged in parallel and level, the thickness of the convex plates 13 is smaller than the integral thickness of the chute plates 12, so that a chute 14 is formed between the lower surfaces of the convex plates 13 and the upper plate 1, as shown in figure 2, the chute 14 formed by the two chute plates 12 is oppositely arranged, a sliding plate 15 is arranged between the two chutes 14, the sliding plate 15 can slide along the chute, as shown in figure 2, the width of the sliding plate 15 is the distance between the two chutes, the sliding plate 15 can be just installed in the chute 14 and only slide along the, cannot shake.

The push block 16 is arranged above the sliding plate 15, the push block 16 is connected with the sliding plate 15 through the connecting column 17 to push the push block 16, and the sliding plate 15 can drive the push block 16 and the connecting column 17 to slide along the sliding groove. The shape of ejector pad 16 is as shown in fig. 7 and 8, and the upside at both ends is equipped with antislip strip 18 and is used for increasing the frictional force when promoting, and antislip strip 18 sets up along ejector pad 16 width direction, and the lower extreme both sides of ejector pad 16 are equipped with the recess, and as shown in fig. 2, recess and protruding board 13 cooperation set up, make ejector pad 16 can with slide 15 direct connection to stability when increasing the promotion reduces and rocks, reduces the possibility of being stained with the sword.

As shown in fig. 2 and 9, one end of the connecting column 17 is connected with the blade 22 by a thread, and the other end is provided with an adjusting knob 19, in this embodiment, the adjusting knob 19 and the connecting column 17 are integrally arranged, so that the angle of the blade 22 can be adjusted by rotating the adjusting knob 19, and the blade 22 can be fixed by locking the connecting column 17. As shown in fig. 8, the upper surface of the push block 16 is fixedly connected with a locking sleeve 20, the connecting column 17 is located in the locking sleeve 20, the connecting column 17 and the locking sleeve 20 are in clearance fit, one end of the locking sleeve 20 is fixedly connected with the push block 16, and can be integrally arranged or welded, bonded, and the like, the outer surface of the locking sleeve 20 is provided with threads and is connected with a locking nut 21 in a matching way, an adhesive tape is adhered to the inner surface of the locking sleeve 20 and is used for increasing the friction force with the connecting column 17, one end of the locking sleeve 20, which is far away from the push block 16, is provided with an adjusting groove 23 along the length direction, the adjusting groove 23 is arranged towards the opening on one side, which is far away from the push block 16, the locking nut 21 is structured as shown in fig. 11, is internally provided with internal threads, the diameter of the internal hole is arranged in a large-end of, the diameter of the end of the locking sleeve 20 provided with the adjusting groove 23 is gradually reduced, so that the locking sleeve is pressed against the connecting column 17 until the connecting column 17 is locked and cannot move, and the fixing of the connecting column 17 is realized.

In this embodiment, the connecting column 17 is provided with a circle of bosses 24 along the circumferential direction, the bosses 24 are arranged below the adjusting knob 19 and are integrally arranged with the connecting column 17, as shown in fig. 3, the diameter of the bosses 24 is smaller than the outer diameter of the locking sleeve 20, so that the position of the connecting column 17 in the vertical direction can be limited, and the bosses 24 do not hinder the connection between the locking sleeve 20 and the locking nut 21 because the locking nut 21 and the locking sleeve 20 are connected in a threaded fit manner. In this embodiment, the boss 24 is circular, and may be set to have other polygonal shapes, or may be limited by only providing several protruding point sections on the outer circumference of the connecting column 17, as long as the maximum width is smaller than the outer diameter of the locking sleeve 20.

In this embodiment, spliced pole 17 and blade 22 threaded connection, the one end that spliced pole 17 and blade 22 are connected is equipped with the external screw thread, and the cooperation is provided with the internal thread hole on the blade 22, and the one end that spliced pole 17 was equipped with the external screw thread is fixed once more through the nut after passing the internal thread hole, guarantees the connection steadiness between spliced pole 17 and the blade 22.

The specific shape of the blade 22 is as shown in fig. 2, 9 and 10, including the middle connecting portion 25 and two cutting portions 26 located at two ends of the connecting portion 25, the two cutting portions 26 and the connecting portion 25 are integrally formed, the connecting portion 25 is fixedly connected with the connecting column 17, the thickness and the width of one end of the two cutting portions 26 connected with the connecting portion 25 are equal to those of the connecting portion 25, on the cutting portion 26, along with the distance from the connecting portion 25, the thickness of the cutting portion is smaller, the blade edge is located below the cutting portion 26, and the two blade edges are arranged in a deviating manner, so that no matter which direction the push block 16 pushes the blade 22 to slide, the gauze 5 can be cut, after the gauze 5 is cut once, the blade 22 does not need to be pushed to return, and compared with the blade 22 for single-blade cutting, the operation steps are saved, and the efficiency is improved. In this embodiment, as shown in fig. 10, an included angle between the cutting edge and the length direction of the blade 22 is α, α is an angle between the cutting edge and the gauze 5 to be cut, α is between 20 ° and 40 °, and when α is set to 90 °, i.e., when the gauze 5 is cut perpendicularly, the edge curl of the gauze 5 can be effectively reduced by cutting at a smaller angle, so that the cutting is smoother, in this embodiment, α is 30 °.

It will be evident to those skilled in the art that the invention 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 invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a quick cutter which characterized in that: including upper plate and hypoplastron, upper plate and hypoplastron are articulated to be set up, one side that the upper plate is towards the hypoplastron is equipped with two clamp plates, one side that the hypoplastron is towards the upper plate is equipped with two backup pads, and two clamp plates are located the outside of two backup pads respectively, be equipped with logical groove between two clamp plates, it is equipped with slidable blade to lead to the groove, is equipped with between two backup pads and cuts cut the groove, will during upper plate and hypoplastron lock, lead to the groove and be located cut groove top, the one end of blade is located logical inslot, and the other end is located cuts.

2. The quick cutter as set forth in claim 1, wherein: the supporting plate is arranged along the length direction of the lower plate, the pressing plate is arranged along the length direction of the upper plate, the height of the supporting plate is larger than that of the pressing plate, and the width of the supporting plate is larger than that of the pressing plate.

3. The quick cutter as set forth in claim 1, wherein: when the upper plate and the lower plate are buckled, the pressing plate on the outer side of each supporting plate is contacted with the supporting plate.

4. The quick cutter as set forth in claim 1, wherein: the one end of upper plate is equipped with two first engaging lugs, the one end of hypoplastron is equipped with two second engaging lugs, first engaging lug and second engaging lug pass through the hinge and connect, the cover is equipped with Y type torsional spring on the hinge, the both ends of Y type torsional spring all outwards extend and form first return strip and second return strip respectively, first return strip and hypoplastron parallel arrangement, second return strip and upper plate parallel arrangement, first return strip is installed at the hypoplastron upper surface, and second return strip is installed at the upper plate upper surface.

5. A quick cutter as claimed in any one of claims 1 to 4, wherein: the both sides that lead to the groove all are equipped with the chute board, the chute board with form the spout between the upper plate, the spout with lead to groove parallel arrangement, the spout cooperation is provided with along its gliding slide, slide top fixedly connected with ejector pad, connect through the spliced pole between ejector pad and the slide, the one end of spliced pole with blade fixed connection, the other end is equipped with adjust knob.

6. The quick cutter as set forth in claim 5, wherein: the upper surface of ejector pad is fixed and is equipped with the lock sleeve, the internal diameter of lock sleeve with the external diameter of connecting rod equals, lock sleeve threaded connection has lock nut, the diameter of one of them one end of the inside screw hole of lock nut is greater than the other end.

7. The quick cutter of claim 6, wherein: one end of the locking sleeve, which is far away from the push block, is provided with a plurality of adjusting grooves along the length direction, the adjusting grooves are arranged along the length direction of the locking sleeve, the connecting column is provided with a circle of bosses along the circumferential direction, and the bosses are arranged below the adjusting knob.

8. The quick cutter of claim 7, wherein: the blade includes connecting portion and the cutting part that is located the connecting portion both sides, connecting portion and spliced pole fixed connection, the one end thickness and the width that cutting part and connecting portion are connected all with the thickness and the width correspondence of connecting portion equals.

9. The quick cutter of claim 8, wherein: the cutting part is by the one end that is close to connecting portion to keeping away from its thickness of one end of connecting portion and diminishing, be equipped with the cutting edge on the cutting part, two the cutting edge deviates from the setting mutually.

10. The quick cutter of claim 9, wherein: the cutting edge is positioned below the cutting parts, the direction of a connecting line between the two cutting parts is the length direction of the blade, the included angle between the cutting edge and the length direction of the blade is alpha, and the alpha is positioned between 20 degrees and 40 degrees.