CN108927827B - Method for improving use safety of art designing knife - Google Patents
Method for improving use safety of art designing knife Download PDFInfo
- Publication number
- CN108927827B CN108927827B CN201811121264.7A CN201811121264A CN108927827B CN 108927827 B CN108927827 B CN 108927827B CN 201811121264 A CN201811121264 A CN 201811121264A CN 108927827 B CN108927827 B CN 108927827B
- Authority
- CN
- China
- Prior art keywords
- blade
- plate
- groove
- movable plate
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B1/00—Hand knives with adjustable blade; Pocket knives
- B26B1/08—Hand knives with adjustable blade; Pocket knives with sliding blade
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
The invention belongs to the technical field of office supplies, and particularly relates to a method for improving the use safety of an art designing knife, which comprises the following steps: checking that the shell of the utility knife is not damaged, and clamping a transparent protective cover at the front end of the shell; wearing goggles and gloves, and gripping the shell; the extension length of the blade is controlled not to exceed 10mm, and the included angle between the blade and the cutting surface is controlled not to exceed 30 degrees; placing a scribing plate at a cutting position, wherein the thickness of the scribing plate exceeds 5mm, and holding the shell by hand to enable the blade to slide along the edge of the scribing plate to realize cutting; when the blade is worn, the blade is broken by pressing the pressure plate and the extrusion plate on the cutter, the cutter can safely break the worn section of the blade without using other tools, and the operation is safe and convenient and the efficiency is high; after use, the adjusting button is pressed to retract the blade into the shell, and the utility knife is placed back into the tool box. The utility knife has high safety factor.
Description
Technical Field
The invention belongs to the technical field of office supplies, and particularly relates to a method for improving the use safety of an art designing knife.
Background
The art designing knife is also commonly called as a graver or a wallpaper knife, is a knife for art and handicraft, and is mainly used for cutting objects with soft texture. The utility knife comprises plastics handle of a knife, blade and adjustment button usually, and the blade is mostly the bevel connection, can be in the same direction as the marking off rupture of blade body with blunt back, appears new blade edge, facilitates the use.
The utility knife can be used for cutting soft articles such as paper, soft ropes and adhesive tapes, and can also be used for cutting hard articles such as wood or plastics, and the application is wide. The utility knife is convenient to use and widely applied to various operations, but the sharp point and the sharp edge of the utility knife are easily damaged and have potential safety hazards if the use method is improper, particularly, after the point of the knife blade is passivated, the cutting effect of the utility knife is reduced, at this time, a passivated section of the knife blade needs to be broken off to use a new sharp point, but the blade cannot directly break off the passivated section, generally, the knife blade is abutted against the ground and pressed and broken, but the broken knife blade can be bounced in any direction, and danger is easily caused.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a method for improving the use safety of an art knife. According to the invention, the existing art designing knife is improved, the protective cover is additionally arranged to prevent the blade from splashing due to fracture in the use process, the fracture of the blade is reduced by controlling the extension length and the angle of the blade, meanwhile, the connecting block is arranged at the end part of the shell, the extrusion plate and the movable plate are arranged on the connecting block and are positioned at two sides of the connecting block, and when the extrusion plate extrudes the blade, the movable plate enables the swinging plate at the other side of the connecting block to rotate to be in contact with the blade, so that when the extrusion plate fractures the blade, the extrusion plate and the swinging plate always clamp the fractured blade, the splashing of the fractured blade is avoided, the fracture of the abraded blade can be completed without adding other tools, and the safety factor of the use of the art designing knife.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a method for improving the use safety of an art knife, which comprises the following steps:
s1: the shell of the utility knife is checked to be not damaged, the front end of the shell is clamped with a transparent protective cover, and the protective cover is used for protecting the part of the blade extending out of the shell, so that the phenomenon that the blade is bounced to cause danger due to overlarge stress of the blade in the use process is avoided;
s1: s1, wearing goggles and gloves, and tightly holding the shell, wherein the goggles avoid the danger caused by the fact that the blades fly into eyes in the using process, and the gloves are beneficial to increasing the friction force with the shell, so that the shell is tightly held;
s3: after S2, controlling the extension length of the blade to be not more than 10mm, controlling the included angle between the blade and the cutting surface to be not more than 30 degrees, controlling the extension length and the angle of the blade to enable the blade to be stressed more, improving the cutting effect and avoiding the blade from being broken;
s4: s3, placing a scribing board at the cutting position, wherein the thickness of the scribing board exceeds 5mm, holding the shell by hand to enable the blade to slide along the edge of the scribing board to realize cutting, enabling the blade to move along the scribing board all the time due to the existence of the scribing board, and limiting the movement track of the blade, so that the safety is improved;
s5: when the blade is worn, the blade is broken by pressing the pressure plate and the extrusion plate on the cutter, the cutter can safely break the worn section of the blade without using other tools, and the operation is safe and convenient and the efficiency is high;
s6: after the use, the adjusting button is pressed to retract the blade into the shell, and the utility knife is put back into the tool box;
the utility knife in the S1 comprises a shell and a blade arranged in the shell in a sliding manner, wherein the bottom of the shell is provided with a knife outlet; the cutting blade is provided with a cutting line, one end of the tail part of the cutting blade is provided with an adjusting button, one end of the head part of the cutting blade can extend out of or retract back from the cutter outlet along the length direction of the shell, one end of the head part of the cutting blade is provided with a cutter point, and the bottom of the shell is provided with a connecting block at the position of the cutter outlet; the connecting block is fixed at the bottom of the shell, a rectangular sliding groove is formed in the upper surface of the connecting block, a slide way is vertically arranged at the bottom of the rectangular sliding groove on the connecting block, the slide way and a cutter outlet of the shell are positioned in the same vertical plane, the blade can extend along the slide way, a sunken groove is vertically formed in the left side of the slide way along the side wall of the rectangular sliding groove at the bottom of the rectangular sliding groove, a cavity is arranged in the left side of the slide way and is positioned at the bottom of the sunken groove, the cavity is communicated with the sunken groove, a abdicating groove is formed in the left side of the slide way at the bottom of the connecting block, a swinging plate is arranged in the abdicating groove, a through groove is vertically formed in the right side of the slide way at the bottom of the rectangular sliding groove and penetrates through the lower surface of the connecting block, a squeezing plate is arranged in the through groove, the upper end of the squeezing plate is positioned in a rectangular sliding groove of the connecting block, the upper ends of the squeezing plate and the movable plate are fixed together, through holes are formed in the fixed positions of the upper ends of the squeezing plate and the movable plate and used for blades to penetrate through, an extension spring is further arranged in the rectangular sliding groove, the upper end of the extension spring is connected with the bottom of the shell, and the lower end of the extension spring is connected with the squeezing plate and the movable plate; the movable plate is made of elastic materials, the bottom of the movable plate is of an arc-shaped structure, the arc-shaped structure extends towards the left side of the movable plate, the lower end of the movable plate is provided with a groove, and the groove penetrates through the left side face and the right side face of the movable plate; the extrusion plate is made of elastic materials, the lower part of the side face, in contact with the blade, of the extrusion plate is inclined, so that a gap exists between the extrusion plate and the blade, a bulge is arranged on the right side of the bottom of the extrusion plate, an extrusion block is arranged on the inclined side face of the extrusion plate, and the extrusion block is in contact with the blade; one end of the swinging plate is rotatably installed in the abdicating groove of the connecting block through the rotating shaft, a torsion spring is arranged at the installation position of the swinging plate, the torsion spring enables the swinging plate to be in a horizontal state, and the side surface of the swinging plate can be contacted with the blade when the swinging plate is in a vertical state; the rotating shaft is also provided with a chain wheel, the chain wheel is provided with a chain, the chain is wound on the chain wheel, one end of the chain is fixed with the chain wheel, and an elastic steel belt is also arranged in a cavity of the connecting block; the upper end of the elastic steel strip is located right below the groove of the movable plate, the upper end of the elastic steel strip is arc-shaped, the upper end of the elastic steel strip extends towards one side of the movable plate, when the movable plate is located at the lowest position, the upper end of the elastic steel strip is located in the groove of the movable plate and is in contact with the movable plate, the left side surface of the elastic steel strip is connected with the inner wall of the cavity through a spring I, the cavity is communicated with the abdicating groove through a communication hole, the lower end of the elastic steel strip penetrates through the communication hole to be connected with a chain, a mounting groove is horizontally formed in the left side wall of the slideway through a connecting; the positioning block is arranged in the mounting groove in an interference fit mode, the right end of the positioning block is in contact with the blade, the left end of the positioning block extends into the cavity, the left end of the positioning block is hemispherical, the left end of the positioning block can be in contact with the end face of the movable plate, and the positioning block is matched with the extrusion block to break the blade along the score line; the connecting block is provided with the sliding tray at the left surface level, and the sliding tray communicates with each other with the cavity, and the height that highly is higher than the locating piece of sliding tray, sliding tray level are provided with the depression bar, and the one end that the depression bar is located the cavity is located the left side of blade, and the depression bar can contact with the fly leaf, and the one end that the depression bar is located the connecting block outside is provided with the pressure disk, and the pressure disk diameter is greater than the depression bar diameter, is provided with spring two on the depression bar, and spring two is. When the head of the blade is abraded, the blade is pushed to extend out of a blade outlet of the shell through the adjusting button, a thumb is placed at the position of the extrusion groove and pushes the extrusion plate to move downwards along the through groove through a protrusion on the extrusion plate, the movable plate is fixedly connected with the extrusion plate and synchronously moves downwards along the sinking groove, the extrusion block on the extrusion plate is located at the position of the blade to be broken at the moment, the movable plate moves to enable an arc-shaped structure at the upper end of the elastic steel belt to penetrate through the groove and to be in contact with the movable plate, the swinging plate is located in the abdicating groove of the connecting block at the moment, then, a forefinger presses the pressure plate to push the pressure rod to move towards the cavity along the sliding groove, the pressure rod is in contact with the movable plate, the movable plate is in an elastic structure and is in contact with the positioning block under the extrusion, the chain is pulled to move towards the cavity, the chain wheel is rotated, the rotating shaft drives the swinging plate to rotate anticlockwise, the swinging plate is contacted with the blade, meanwhile, the thumb presses the extrusion plate, the extrusion plate is made of elastic materials, the extrusion plate is elastically deformed, the extrusion block bends and breaks the blade at the tail end, the swinging plate and the extrusion block clamp the two sides of the blade, the broken blade is prevented from splashing, and the safety is improved; after the blade is broken, the extrusion plate and the movable plate move upwards along the rectangular sliding groove under the action of the extension spring and contract, so that adverse effects on the use of the art designing knife are avoided.
The extrusion plate is provided with an auxiliary block on the inclined side face, the auxiliary block and the positioning block are located at the same height, and a sponge body is arranged at one end, in contact with the blade, of the auxiliary block. When the extrusion plate breaks the tail end of the blade, the auxiliary block is in contact with the previous blade and is matched with the positioning block to position the blade, so that the blade is prevented from being bent, the blade at the tail end is only broken, the continuous use of the blade is ensured, the pressure required to be applied during breaking is reduced, and the breaking efficiency is high.
The extrusion piece sets up "V" type groove on the terminal surface with the blade contact, the existence in "V" type groove makes the extrusion piece can effectively contact with the blade all the time when extruding the blade, has guaranteed that the blade can be effectively centre gripping by extrusion piece and swing board when breaking.
The movable plate is divided into an upper section and a lower section, the two sections of the movable plate are connected through a third spring, and the third spring is located above the positioning block. The movable plate is divided into two ends, so that when the pressure rod presses the movable plate, the deformation of the movable plate is increased, on one hand, the pressure during pressing is reduced, and on the other hand, the swinging plate can be ensured to smoothly rotate to be in contact with the blade.
The surface of the swinging plate is provided with the rubber layer, so that the rubber layer has buffering and damping effects when the blade is broken, and the comfort of operation is improved.
The upper surface of the extrusion plate is provided with air outlet holes which are communicated with the outside on the inclined side surface of the extrusion plate. After the blade is broken, the extrusion plate moves upwards along the rectangular sliding groove under the action of the extension spring, air in the rectangular sliding groove is discharged from the air outlet holes in the extrusion plate, and the air discharged from the air outlet holes is blown to the surface of the blade, so that the blade is cleaned.
The invention has the following beneficial effects:
1. the invention relates to a method for improving the use safety of an art designing knife, which improves the prior art designing knife, increases a protective cover to prevent a blade from splashing due to fracture in the use process, reduces the fracture of the blade by controlling the extending length and the angle of the blade, simultaneously arranges a connecting block at the end part of a shell, arranges a squeezing plate and a movable plate on the connecting block, the squeezing plate and the movable plate are positioned at two sides of the connecting block, when the squeezing plate squeezes the blade, the movable plate enables a swinging plate at the other side of the connecting block to rotate to be contacted with the blade, so that when the blade is fractured by the squeezing plate, the squeezing plate and the swinging plate always keep clamping the fractured blade, the blade is prevented from splashing after the fracture, the fracture of a worn blade can be finished without adding other tools, and the use safety coefficient of the art designing knife is high.
2. According to the method for improving the use safety of the utility knife, the air outlet holes are formed in the extrusion plate, when the extrusion plate moves upwards along the rectangular sliding groove, air in the rectangular sliding groove is discharged from the air outlet holes, and the discharged air is blown to the surface of the blade, so that the blade is cleaned, and the effect of maintaining the blade is achieved.
3. According to the method for improving the use safety of the art knife, the bottom of the movable plate is tilted by pressing the pressure lever with the index finger, so that the elastic steel belt is driven to move, the elastic steel belt pulls the chain to move, the swinging plate rotates to a position where the swinging plate is contacted with the blade, the blade is clamped by matching with the extrusion block, and the thumb and the index finger synchronously apply force, so that the operation is more scientific and the efficiency is high.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a front view of the utility knife of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;
in the figure: the cutting device comprises a shell 1, a blade 2, an adjusting button 3, a connecting block 4, a rectangular sliding groove 41, a sliding way 42, a sinking groove 43, a cavity 44, a yielding groove 45, a swinging plate 5, a through groove 46, a movable plate 6, a squeezing plate 7, a groove 61, a squeezing block 71, a rotating shaft 10, a chain 51, an elastic steel belt 52, a positioning block 53, a pressure rod 54, a pressure plate 55, an auxiliary block 72, a sponge body 73, a V-shaped groove 74 and an air outlet 75.
Detailed Description
A method for improving the safety of use of the utility knife according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.
As shown in fig. 1-3, the method for improving the safety of the utility knife according to the present invention comprises the following steps:
s1: the shell of the utility knife is checked to be not damaged, the front end of the shell is clamped with a transparent protective cover, and the protective cover is used for protecting the part of the blade extending out of the shell, so that the phenomenon that the blade is bounced to cause danger due to overlarge stress of the blade in the use process is avoided;
s1: s1, wearing goggles and gloves, and tightly holding the shell, wherein the goggles avoid the danger caused by the fact that the blades fly into eyes in the using process, and the gloves are beneficial to increasing the friction force with the shell, so that the shell is tightly held;
s3: after S2, controlling the extension length of the blade to be not more than 10mm, controlling the included angle between the blade and the cutting surface to be not more than 30 degrees, controlling the extension length and the angle of the blade to enable the blade to be stressed more, improving the cutting effect and avoiding the blade from being broken;
s4: s3, placing a scribing board at the cutting position, wherein the thickness of the scribing board exceeds 5mm, holding the shell by hand to enable the blade to slide along the edge of the scribing board to realize cutting, enabling the blade to move along the scribing board all the time due to the existence of the scribing board, and limiting the movement track of the blade, so that the safety is improved;
s5: when the blade is worn, the blade is broken by pressing the pressure plate and the extrusion plate on the cutter, the cutter can safely break the worn section of the blade without using other tools, and the operation is safe and convenient and the efficiency is high;
s6: after the use, the adjusting button is pressed to retract the blade into the shell, and the utility knife is put back into the tool box;
the utility knife in the S1 comprises a shell 1 and a blade 2 which is arranged in the shell 1 in a sliding manner, wherein the bottom of the shell 1 is provided with a knife outlet; the cutting blade 2 is provided with a cutting line, one end of the tail part of the cutting blade 2 is provided with an adjusting button 3, one end of the head part of the cutting blade 2 can extend out of or retract back from a cutter outlet along the length direction of the shell 1, one end of the head part of the cutting blade 2 is provided with a cutter point, and the bottom of the shell 1 is provided with a connecting block 4 at the position of the cutter outlet; the connecting block 4 is fixed at the bottom of the shell 1, a rectangular sliding groove 41 is formed in the upper surface of the connecting block 4, a sliding rail 42 is vertically arranged at the bottom of the rectangular sliding groove 41 of the connecting block 4, the sliding rail 42 and a cutter outlet of the shell 1 are located in the same vertical plane, the blade 2 can stretch out along the sliding rail 42, a sinking groove 43 is vertically arranged at the bottom of the rectangular sliding groove 41 on the left side of the sliding rail 42 along the side wall of the rectangular sliding groove 41, a cavity 44 is arranged in the left side of the sliding rail 42 of the connecting block 4, the cavity 44 is located at the bottom of the sinking groove 43, the cavity 44 is communicated with the sinking groove 43, a yielding groove 45 is arranged at the bottom of the connecting block 4 on the left side of the sliding rail 42, a swinging plate 5 is arranged in the yielding groove 45, a through groove 46 is vertically arranged at the right side of the sliding rail 42 along the, the extrusion groove is communicated with the through groove 46, the movable plate 6 is arranged in the sinking groove 43, the upper end of the movable plate 6 is positioned in the rectangular sliding groove 41 of the connecting block 4, the extrusion plate 7 is arranged in the through groove 46, the upper end of the extrusion plate 7 is positioned in the rectangular sliding groove 41 of the connecting block 4, the extrusion plate 7 and the upper end of the movable plate 6 are fixed together, through holes are formed in the fixed parts of the upper ends of the extrusion plate 7 and the movable plate 6 and used for the blade 2 to penetrate through, an extension spring is further arranged in the rectangular sliding groove 41, the upper end of the extension spring is connected with the bottom of the shell 1; the bottom of the movable plate 6 is of an arc structure, the arc structure extends towards the left side of the movable plate 6, a groove 61 is formed in the lower end of the movable plate 6, and the groove 61 penetrates through the left side surface and the right side surface of the movable plate 6; the extrusion plate 7 is made of elastic materials, the lower part of the side face, in contact with the blade 2, of the extrusion plate 7 is inclined, so that a gap exists between the extrusion plate 7 and the blade 2, a bulge is arranged on the right side of the bottom of the extrusion plate 7, an extrusion block 71 is arranged on the inclined side face of the extrusion plate 7, and the extrusion block 71 is in contact with the blade 2; one end of the swinging plate 5 is rotatably installed in the receding groove 45 of the connecting block 4 through the rotating shaft 10, a torsion spring is arranged at the installation position of the swinging plate 5, the torsion spring enables the swinging plate 5 to be in a horizontal state, and the side surface of the swinging plate 5 can be in contact with the blade 2 when the swinging plate 5 is in a vertical state; a chain wheel is further mounted on the rotating shaft 10, a chain 51 is arranged on the chain wheel, the chain 51 is wound on the chain wheel, one end of the chain 51 is fixed with the chain wheel, and an elastic steel belt 52 is further arranged in the cavity 44 of the connecting block 4; the upper end of the elastic steel belt 52 is located right below the groove 61 of the movable plate 6, the upper end of the elastic steel belt 52 is arc-shaped, the upper end of the elastic steel belt 52 extends towards one side of the movable plate 6, when the movable plate 6 is located at the lowest position, the upper end of the elastic steel belt 52 is located in the groove 61 of the movable plate 6 and contacts with the movable plate 6, the left side surface of the elastic steel belt 52 is connected with the inner wall of the cavity 44 through a spring I, the cavity 44 is communicated with the abdicating groove 45 through a communicating hole, the lower end of the elastic steel belt 52 penetrates through the communicating hole to be connected with the chain 51, the connecting block 4 is horizontally provided with a mounting groove on the left side wall of the slideway 42, the mounting; the positioning block 53 is installed in the installation groove in an interference fit mode, the right end of the positioning block 53 is in contact with the blade 2, the left end of the positioning block 53 extends into the cavity 44, the left end of the positioning block 53 is hemispherical, the left end of the positioning block 53 can be in contact with the end face of the movable plate 6, and the positioning block 53 and the extrusion block 71 are matched with each other to break the blade 2 along the score line; the connecting block 4 is horizontally provided with a sliding groove on the left side surface, the sliding groove is communicated with the cavity 44, the height of the sliding groove is higher than that of the positioning block 53, a pressing rod 54 is horizontally arranged in the sliding groove, one end of the pressing rod 54, which is positioned in the cavity 44, is positioned on the left side of the blade 2, the pressing rod 54 can be in contact with the movable plate 6, one end of the pressing rod 54, which is positioned on the outer side of the connecting block 4, is provided with a pressure plate 55, the diameter of the pressure plate 55 is larger than that of the pressing rod 54, the pressing rod 54 is provided with. When the head of the blade 2 is worn, the blade 2 is pushed by the adjusting button 3 to extend out of the blade outlet of the housing 1, the thumb is placed at the position of the extrusion groove and pushes the extrusion plate 7 to move downwards along the through groove 46 through the protrusion on the extrusion plate 7, the movable plate 6 is fixedly connected with the extrusion plate 7, the movable plate 6 synchronously moves downwards along the sunken groove 43, the extrusion block 71 on the extrusion plate 7 is located at the position of the blade 2 to be broken, the movable plate 6 moves to enable the arc-shaped structure at the upper end of the elastic steel belt 52 to pass through the groove 61 and to be in contact with the movable plate 6, the swinging plate 5 is located in the abdicating groove 45 of the connecting block 4, then the forefinger presses the pressure plate 55 to push the pressure lever 54 to move towards the cavity 44 along the sliding groove, the pressure lever 54 is in contact with the movable plate 6, and the right side of the movable plate 6 is in contact with the positioning block, the arc structure at the lower end of the movable plate 6 is tilted to drive the elastic steel band 52 to move upwards, so that the chain 51 is pulled to move towards the cavity 44, the chain wheel is rotated, the rotating shaft 10 drives the swinging plate 5 to rotate anticlockwise, the swinging plate 5 is in contact with the blade 2, meanwhile, the extrusion plate 7 is pressed by a thumb, the extrusion plate 7 is made of elastic materials, the extrusion block 71 bends and breaks the blade 2 at the tail end due to elastic deformation of the extrusion plate 7, the swinging plate 5 and the extrusion block 71 clamp two sides of the blade 2, splashing of the broken blade 2 is avoided, and safety is improved; after the blade 2 is broken off, the extrusion plate 7 and the movable plate 6 move upwards along the rectangular sliding groove 41 under the action of the extension spring, so that the adverse effect on the use of the art knife is avoided.
As shown in fig. 3, the pressing plate 7 is provided with an auxiliary block 72 on the inclined side, the auxiliary block 72 is at the same height as the positioning block 53, and a sponge 73 is provided at one end of the auxiliary block 72 contacting the blade 2. When the extrusion plate 7 breaks the tail end of the blade 2, the auxiliary block 72 is in contact with the previous blade 2 and is matched with the positioning block 53 to position the blade 2, so that the blade 2 is prevented from being bent, the blade 2 at the tail end is guaranteed to be broken, the blade 2 is guaranteed to be continuously used, pressure required to be applied during breaking is reduced, and breaking efficiency is high.
As shown in fig. 3, a "V" shaped groove 74 is formed in the end surface of the pressing block 71, which is in contact with the blade 2, and the presence of the "V" shaped groove 74 enables the pressing block 71 to be always in effective contact with the blade 2 when the pressing block 71 presses the blade 2, thereby ensuring that the blade 2 can be effectively clamped by the pressing block 71 and the swing plate 5 when the blade 2 is broken.
As shown in fig. 2, the movable plate 6 is divided into an upper section and a lower section, the two sections of the movable plate 6 are connected by a third spring, and the third spring is located above the positioning block 53. The movable plate 6 is divided into two ends, so that when the pressure rod 54 presses the movable plate 6, the deformation of the movable plate 6 is increased, on one hand, the pressure during pressing is reduced, and on the other hand, the swinging plate 5 can be ensured to smoothly rotate to be in contact with the blade 2.
The surface of the swing plate 5 is provided with a rubber layer, so that the rubber layer has buffering and damping effects when the blade 2 is broken, and the comfort of operation is improved.
As shown in fig. 2, the upper surface of the compression plate 7 is provided with air outlet holes 75, and the air outlet holes 75 are communicated with the outside on the inclined side surface of the compression plate 7. After the blade 2 is broken off, the extrusion plate 7 moves upwards along the rectangular sliding groove 41 under the action of the extension spring, air in the rectangular sliding groove 41 is discharged from the air outlet holes 75 in the extrusion plate 7, and the air discharged from the air outlet holes 75 is blown to the surface of the blade 2, so that the blade 2 is cleaned.
The specific process is as follows:
when the head of the blade 2 is worn, the blade 2 is pushed by the adjusting button 3 to extend out of the blade outlet of the housing 1, the thumb is placed at the position of the extrusion groove and pushes the extrusion plate 7 to move downwards along the through groove 46 through the protrusion on the extrusion plate 7, the movable plate 6 is fixedly connected with the extrusion plate 7, the movable plate 6 synchronously moves downwards along the sunken groove 43, the extrusion block 71 on the extrusion plate 7 is located at the position of the blade 2 to be broken, the movable plate 6 moves to enable the arc-shaped structure at the upper end of the elastic steel belt 52 to pass through the groove 61 and to be in contact with the movable plate 6, the swinging plate 5 is located in the abdicating groove 45 of the connecting block 4, then the forefinger presses the pressure plate 55 to push the pressure lever 54 to move towards the cavity 44 along the sliding groove, the pressure lever 54 is in contact with the movable plate 6, and the right side of the movable plate 6 is in contact with the positioning block, the arc structure at the lower end of the movable plate 6 is tilted to drive the elastic steel band 52 to move upwards, so that the chain 51 is pulled to move towards the cavity 44, the chain wheel is rotated, the rotating shaft 10 drives the swinging plate 5 to rotate anticlockwise, the swinging plate 5 is in contact with the blade 2, meanwhile, the extrusion plate 7 is pressed by a thumb, the extrusion plate 7 is made of elastic materials, the extrusion block 71 bends and breaks the blade 2 at the tail end due to elastic deformation of the extrusion plate 7, the swinging plate 5 and the extrusion block 71 clamp two sides of the blade 2, splashing of the broken blade 2 is avoided, and safety is improved; after the blade 2 is broken off, the extrusion plate 7 and the movable plate 6 move upwards along the rectangular sliding groove 41 under the action of the extension spring, so that the adverse effect on the use of the art knife is avoided.
When the extrusion plate 7 breaks the tail end of the blade 2, the auxiliary block 72 is in contact with the previous blade 2 and is matched with the positioning block 53 to position the blade 2, so that the blade 2 is prevented from being bent, the blade 2 at the tail end is guaranteed to be broken, the blade 2 is guaranteed to be continuously used, pressure required to be applied during breaking is reduced, and breaking efficiency is high. The existence of the V-shaped groove 74 on the extrusion block 71 ensures that the extrusion block 71 can always effectively contact with the blade 2 when extruding the blade 2, and ensures that the blade 2 can be effectively clamped by the extrusion block 71 and the swinging plate 5 when being broken. The movable plate 6 is divided into two ends, so that when the pressure rod 54 presses the movable plate 6, the deformation of the movable plate 6 is increased, on one hand, the pressure during pressing is reduced, and on the other hand, the swinging plate 5 can be ensured to smoothly rotate to be in contact with the blade 2.
After the blade 2 is broken off, the extrusion plate 7 moves upwards along the rectangular sliding groove 41 under the action of the extension spring, air in the rectangular sliding groove 41 is discharged from the air outlet holes 75 in the extrusion plate 7, and the air discharged from the air outlet holes 75 is blown to the surface of the blade 2, so that the blade 2 is cleaned.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
Industrial applicability
According to the invention, the existing art designing knife is reformed, the protective cover is additionally arranged to avoid the splash of the blade due to fracture in the use process, the break of the blade is reduced by controlling the extending length and the angle of the blade, meanwhile, the end part of the shell is provided with the connecting block, the extruding plate and the movable plate are arranged on the connecting block, the extruding plate and the movable plate are positioned at two sides of the connecting block, when the extruding plate extrudes the blade, the movable plate enables the swinging plate at the other side of the connecting block to rotate to be contacted with the blade, so that when the extruding plate breaks the blade, the extruding plate and the swinging plate always clamp the broken blade, the splash of the broken blade is avoided, the break of the worn blade can be finished without adding other tools, the safety coefficient of the use of the art designing knife is high, and the method for improving the use safety of the art designing knife.
Claims (6)
1. A method for improving the use safety of an art knife is characterized in that: the method comprises the following steps:
s1: checking that the shell of the utility knife is not damaged, and clamping a transparent protective cover at the front end of the shell;
s1: s1, wearing goggles and gloves, and gripping the shell;
s3: after S2 is finished, the extending length of the blade is controlled not to exceed 10mm, and the included angle between the blade and the cutting surface is controlled not to exceed 30 degrees;
s4: s3, placing a scribing plate at the cutting position, wherein the thickness of the scribing plate exceeds 5mm, and holding the shell by hand to enable the blade to slide along the edge of the scribing plate to realize cutting;
s5: when the blade is worn, the blade is broken by pressing the pressure plate and the extrusion plate on the art designing knife;
s6: after the use, the adjusting button is pressed to retract the blade into the shell, and the utility knife is put back into the tool box;
the utility knife in the S1 comprises a shell (1) and a blade (2) which is arranged in the shell (1) in a sliding manner, wherein the bottom of the shell (1) is provided with a knife outlet; the cutting knife is characterized in that a cutting line is arranged on the blade (2), an adjusting button (3) is arranged at one end of the tail of the blade (2), one end of the head of the blade (2) can extend out of or retract back from a knife outlet along the length direction of the shell (1), a knife tip is arranged at one end of the head of the blade (2), and a connecting block (4) is arranged at the bottom of the shell (1) at the position of the knife outlet; the connecting block (4) is fixed at the bottom of the shell (1), a rectangular sliding groove (41) is formed in the upper surface of the connecting block (4), a slide way (42) is vertically arranged at the bottom of the rectangular sliding groove (41) of the connecting block (4), the slide way (42) and a cutter outlet of the shell (1) are located in the same vertical plane, the blade (2) can stretch out along the slide way (42), a sinking groove (43) is vertically arranged at the left side of the slide way (42) at the bottom of the rectangular sliding groove (41) along the side wall of the rectangular sliding groove (41), a cavity (44) is arranged in the left side of the slide way (42) of the connecting block (4), the cavity (44) is located at the bottom of the sinking groove (43), the cavity (44) is communicated with the sinking groove (43), a yielding groove (45) is formed at the left side of the slide way (42) at the bottom of the connecting block (4), a swinging plate (5) is installed in the yielding groove (45), a through groove (46), the through groove (46) penetrates through the lower surface of the connecting block (4), a squeezing groove is horizontally formed in the right end face of the connecting block (4) along the lower surface of the connecting block (4), the squeezing groove is communicated with the through groove (46), a movable plate (6) is arranged in the sinking groove (43), the upper end of the movable plate (6) is located in a rectangular sliding groove (41) of the connecting block (4), a squeezing plate (7) is arranged in the through groove (46), the upper end of the squeezing plate (7) is located in the rectangular sliding groove (41) of the connecting block (4), the squeezing plate (7) and the upper end of the movable plate (6) are fixed together, through holes are formed in the fixing parts of the upper ends of the squeezing plate (7) and the movable plate (6), the through holes are used for the blades (2) to penetrate through, an extension spring is further arranged in the rectangular sliding groove (41), the upper end of the extension spring; the movable plate (6) is made of elastic materials, the bottom of the movable plate (6) is of an arc-shaped structure, the arc-shaped structure extends towards the left side of the movable plate (6), a groove (61) is formed in the lower end of the movable plate (6), and the groove (61) penetrates through the left side surface and the right side surface of the movable plate (6); the extrusion plate (7) is made of elastic materials, the lower part of the side face, in contact with the blade (2), of the extrusion plate (7) is inclined, a gap is formed between the extrusion plate (7) and the blade (2), a bulge is arranged on the right side of the bottom of the extrusion plate (7), an extrusion block (71) is arranged on the inclined side face of the extrusion plate (7), and the extrusion block (71) is in contact with the blade (2); one end of the swinging plate (5) is rotatably installed in the abdicating groove (45) of the connecting block (4) through the rotating shaft (10), a torsion spring is arranged at the installation position of the swinging plate (5), the swinging plate (5) is in a horizontal state through the torsion spring, and the side surface of the swinging plate (5) can be contacted with the blade (2) when the swinging plate (5) is in a vertical state; a chain wheel is further mounted on the rotating shaft (10), a chain (51) is arranged on the chain wheel, the chain (51) is wound on the chain wheel, one end of the chain (51) is fixed with the chain wheel, and an elastic steel belt (52) is further arranged in a cavity (44) of the connecting block (4); the upper end of the elastic steel belt (52) is positioned right below the groove (61) of the movable plate (6), the upper end of the elastic steel belt (52) is arc-shaped, the upper end of the elastic steel belt (52) extends towards one side of the movable plate (6), when the movable plate (6) is positioned at the lowest position, the upper end of the elastic steel belt (52) is positioned in the groove (61) of the movable plate (6) and is in contact with the movable plate (6), the left side surface of the elastic steel belt (52) is connected with the inner wall of the cavity (44) through a first spring, the cavity (44) is communicated with the abdicating groove (45) through a communication hole, the lower end of the elastic steel belt (52) penetrates through the communication hole to be connected with the chain (51), the connecting block (4) is horizontally provided with a mounting groove on the left side wall of the slide way (42), the mounting groove is communicated with the cavity (44), the mounting groove is higher than the elastic steel belt (52), and a positioning block (53) is arranged in the; the positioning block (53) is mounted in the mounting groove in an interference fit mode, the right end of the positioning block (53) is in contact with the blade (2), the left end of the positioning block (53) extends into the cavity (44), the left end of the positioning block (53) is hemispherical, the left end of the positioning block (53) can be in contact with the end face of the movable plate (6), and the positioning block (53) and the extrusion block (71) are matched with each other to break the blade (2) along the score line; connecting block (4) level is provided with the sliding tray on the left surface, the sliding tray communicates with each other with cavity (44), the height that highly is higher than locating piece (53) of sliding tray, the level is provided with depression bar (54) in the sliding tray, depression bar (54) are located the left side of cavity (44) one end in the blade (2), depression bar (54) can contact with fly leaf (6), the one end that depression bar (54) are located the connecting block (4) outside is provided with pressure disk (55), pressure disk (55) diameter is greater than depression bar (54) diameter, be provided with spring two on depression bar (54), spring two is located between connecting block (4) and pressure disk (55).
2. The method of claim 1, wherein the method further comprises the steps of: the auxiliary block (72) is arranged on the inclined side face of the extrusion plate (7), the auxiliary block (72) and the positioning block (53) are located at the same height, and a sponge body (73) is arranged at one end, in contact with the blade (2), of the auxiliary block (72).
3. The method of claim 2, wherein the method comprises the following steps: the extrusion block (71) is provided with a V-shaped groove (74) on the end surface which is contacted with the blade (2).
4. The method of claim 1, wherein the method further comprises the steps of: the movable plate (6) is divided into an upper section and a lower section, the two sections of the movable plate (6) are connected through a third spring, and the third spring is located above the positioning block (53).
5. The method of claim 1, wherein the method further comprises the steps of: the surface of the swing plate (5) is provided with a rubber layer.
6. The method of claim 1, wherein the method further comprises the steps of: the upper surface of the extrusion plate (7) is provided with air outlet holes (75), and the air outlet holes (75) are communicated with the outside on the inclined side surface of the extrusion plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121264.7A CN108927827B (en) | 2018-09-26 | 2018-09-26 | Method for improving use safety of art designing knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121264.7A CN108927827B (en) | 2018-09-26 | 2018-09-26 | Method for improving use safety of art designing knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108927827A CN108927827A (en) | 2018-12-04 |
| CN108927827B true CN108927827B (en) | 2020-06-02 |
Family
ID=64443925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811121264.7A Active CN108927827B (en) | 2018-09-26 | 2018-09-26 | Method for improving use safety of art designing knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108927827B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193519B (en) * | 2021-12-02 | 2024-02-20 | 宁波美志工具有限公司 | Safety knife |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985611A (en) * | 2015-07-26 | 2015-10-21 | 鲁建辉 | Safe art knife |
| CN104999483A (en) * | 2015-07-26 | 2015-10-28 | 鲁建辉 | Novel art knife |
| KR20170116673A (en) * | 2016-04-12 | 2017-10-20 | 한동윤 | Multifunctional cutter |
| CN206605520U (en) * | 2017-03-07 | 2017-11-03 | 泉州市埔成电子科技有限公司 | A kind of improved push type cutter |
-
2018
- 2018-09-26 CN CN201811121264.7A patent/CN108927827B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985611A (en) * | 2015-07-26 | 2015-10-21 | 鲁建辉 | Safe art knife |
| CN104999483A (en) * | 2015-07-26 | 2015-10-28 | 鲁建辉 | Novel art knife |
| KR20170116673A (en) * | 2016-04-12 | 2017-10-20 | 한동윤 | Multifunctional cutter |
| CN206605520U (en) * | 2017-03-07 | 2017-11-03 | 泉州市埔成电子科技有限公司 | A kind of improved push type cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108927827A (en) | 2018-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108927827B (en) | Method for improving use safety of art designing knife | |
| PL379661A1 (en) | Device for cutting glass and removing coatings therefrom | |
| US4693403A (en) | Glass breaking tool | |
| CN108943027B (en) | Art designing knife | |
| WO2007041055A3 (en) | Method and surgical tool for forming scleral tunnels | |
| US4326334A (en) | Hand held restraining cutter | |
| US2109686A (en) | Cutting tool | |
| CN209648893U (en) | Bench saw | |
| CN211761989U (en) | Protective device for cutting flexible material sample | |
| CN108011326B (en) | Glove type cable sheath peeling knife | |
| CN209487241U (en) | Wire stripping mould | |
| CN212471566U (en) | Automatic resilience blade | |
| CN204800667U (en) | Noodle cutter and have noodle cutter's shaved noodle equipment | |
| CN211729527U (en) | Wood working center machine head structure | |
| CN211277476U (en) | Safety device of pipe cutting machine | |
| CN219686886U (en) | NG marking mechanism | |
| CN211142065U (en) | Electric gas shielded arc welding gloves production is with cutting edge equipment | |
| CN213439782U (en) | Rubber cutter | |
| CN210551591U (en) | Processing anti-falling equipment of finished product cutting machine | |
| CN207045896U (en) | A kind of radome shunt bar Protection glue band cuts instrument | |
| CN214134568U (en) | A shovel skin device for production of drill bit solder | |
| CN210211069U (en) | Plastic trimming knife | |
| CN111761622B (en) | Portable paper cutter convenient to use | |
| CN207239677U (en) | A kind of Novel windscreen wiper reed shaping mechanism | |
| KR200329225Y1 (en) | A triming device of an edge banding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200506 Address after: 234000 room 11011, science and innovation center, Suma Park, Suzhou City, Anhui Province Applicant after: Suzhou Huiteng Intellectual Property Consulting Co., Ltd. Suma Park Branch Address before: 210023 Nanjing University, 22 Hankou Road, Nanjing City, Jiangsu Province Applicant before: Zhang Mengmeng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |