Novel art knife with blade convenient to replace

Abstract

The novel art knife comprises the blade and a knife handle, the knife handle is provided with a containing groove used for containing the blade and a guide channel communicated with the containing groove, a threaded pipe is connected into the containing groove in a sliding mode, the blade moves in the containing groove, and a through hole corresponding to the threaded pipe is formed in the blade. The push rod slides in the guide channel, the fixing pipe is movably connected with the push rod, the push rod penetrates through the through hole and is in threaded connection with the threaded pipe, the fixing pipe moves in the guide channel, and the outer wall of the fixing pipe abuts against the inner wall of the guide channel. The utility model has the beneficial effects that the blade is not blocked in the moving process, so that the blade moves smoothly, only the fixed pipe needs to be pushed in the extending process of the blade, the blade does not need to be pushed to move by pressing the fixed pipe all the time, the use is convenient, and the blade is convenient to replace when the blade is damaged and needs to be replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of art knife, more specifically, it relates to a novel art knife convenient for replacing blade. BACKGROUND

[0002] The art knife is a kind of hand cutting tool that is commonly used, and the existing art knife generally includes a shell, a blade arranged in the shell and a push key for pushing the blade to move out of the shell, when using, the blade is pushed out of the shell by the push key to cut, and when not using, the blade is retracted into the shell by the push key to be stored in the shell to protect the blade.

[0003] In the prior art, a sawtooth-shaped slot is generally formed on the shell, and a clamping point is arranged on the push key to cooperate with the sawtooth of the slot to position the blade when using, but the sawtooth structure causes the blade to be stuck during movement, resulting in that the blade moves not smoothly, and the push key needs to be pressed to move the blade all the time, which is inconvenient to use, and the blade of the art knife is generally thin and is often used to scratch hard objects such as outer boxes and packages, which is easy to damage the blade, and the blade is inconvenient to replace. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a novel art knife convenient for replacing blade.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A novel art knife convenient for replacing blade, including blade and blade handle, the blade handle is opened with the accommodating groove for accommodating the blade and the guide channel that communicates with the accommodating groove, the threaded tube is slidably connected in the accommodating groove, the blade is movable in the accommodating groove, and the blade is opened with the through hole corresponding to the threaded tube, the push rod that slides in the guide channel and the fixed tube that is movably connected with the push rod are arranged on the blade handle, the push rod passes through the through hole and is threadedly connected with the threaded tube, the fixed tube is movable in the guide channel, and the outer wall of the fixed tube is in contact with the inner wall of the guide channel.

[0007] Further, the guide sliding groove is formed on the inner wall of the accommodating groove, the connecting block is slidably connected with the guide sliding groove on the threaded tube, and the connecting block is clamped with the guide sliding groove.

[0008] Further, the clamping block is arranged on the inner wall of the fixed tube, the movable slot corresponding to the clamping block is formed on the push rod, the clamping block slides in the movable slot, the movable slot is C-shaped and surrounds the push rod, and the elastic block that cooperates with the inner wall of the guide channel is arranged on both sides of the outer wall of the fixed tube, and the elastic block is in contact with the inner wall of the guide channel.

[0009] Further, two rolling grooves are formed on the inner wall of the accommodating groove, and two rolling balls are movably connected in the rolling grooves and abut against the blade.

[0010] By using the above technical scheme, the utility model has the advantages that: during use, the elastic block on the fixed pipe is abutted against the inner wall of the guide channel, so that the fixed pipe is facilitated to slide in the guide channel, the fixed pipe drives the push rod to move, so that the blade is moved to extend out of the accommodating groove of the handle, the elastic block is abutted against the inner wall of the guide channel again, so that the blade is fixed, the blade is facilitated to use, the blade is not jammed during movement, the blade is moved smoothly, the fixed pipe is only needed to be pushed during the process of extending the blade, the blade is not needed to be pushed to move all the time, the utility model is convenient to use, when the blade is damaged and needs to be replaced, the clamping block is abutted against the inner wall of the movable groove, so that the push rod is driven to rotate, the push rod is facilitated to be detached from the threaded pipe, the push rod is pulled out of the through hole of the blade, the old blade is facilitated to be detached, and the blade is convenient to replace. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model embodiment.

[0012] Figure 2 It is a structural schematic view of the blade and the accommodating groove.

[0013] Figure 3 It is an enlarged structural schematic view of A.

[0014] Figure 4 It is an enlarged structural schematic view of B.

[0015] Figure 5 It is a structural schematic view of the push rod and the movable groove.

[0016] Figure 6 It is a structural schematic view of the fixed pipe and the movable groove.

[0017] In the drawing: blade 1, handle 2, accommodating groove 3, guide channel 4, threaded pipe 5, through hole 101, push rod 6, fixed pipe 7, guide sliding groove 8, connecting block 9, clamping block 10, movable groove 11, rolling groove 12, rolling ball 13, elastic block 14. DETAILED DESCRIPTION

[0018] Refer to Figures 1 to 6 The utility model embodiment is further explained.

[0019] The utility model provides a new type of stationery knife which is convenient to replace blade 1, comprising blade 1 and knife handle 2, the knife handle 2 is provided with accommodating groove 3 for accommodating the blade 1 and guide channel 4 communicated with the accommodating groove 3, threaded tube 5 is slidably connected in the accommodating groove 3, the blade 1 is movable in the accommodating groove 3, and the blade 1 is provided with through hole 101 corresponding to the threaded tube 5, the knife handle 2 is provided with push rod 6 slidably arranged in the guide channel 4 and fixed tube 7 movably connected with the push rod 6, the push rod 6 passes through the through hole 101 and is threadedly connected with the threaded tube 5, the fixed tube 7 is movable in the guide channel 4, the fixed tube 7 is provided with clamping block 10 on the inner wall, the push rod 6 is provided with movable slot 11 corresponding to the clamping block 10, the clamping block 10 is slidably arranged in the movable slot 11, the movable slot 11 is C-shaped and surrounds the push rod 6, and the outer wall of the fixed tube 7 is provided with elastic block 14 on both sides matched with the inner wall of the guide channel 4, and the elastic block 14 is in contact with the inner wall of the guide channel 4.

[0020] In use, the fixed tube 7 is counterclockwise rotated, the clamping block 10 on the fixed tube 7 is slidably arranged in the movable slot 11 on the push rod 6, the fixed tube 7 is rotated by a certain angle so that the elastic block 14 on the fixed tube 7 is not in contact with the inner wall of the guide channel 4, the elastic block 14 is restored from the compressed state to the original state, so that the fixed tube 7 is slidably arranged along the guide channel 4, the threaded tube 5 is movably arranged in the accommodating groove 3, the fixed tube 7 is pushed to move, the push rod 6 is moved along the guide channel 4, so that the blade 1 is moved to make the blade 1 extend out of the accommodating groove 3 of the knife handle 2, then the fixed tube 7 is clockwise rotated to make the elastic block 14 in contact with the inner wall of the guide channel 4 again, so that the blade 1 is fixed to be convenient for use, at this time, the elastic block 14 is in the compressed state, the blade 1 is moved smoothly without jamming, in the process of making the blade 1 extend out of the accommodating groove 3, only the fixed tube 7 needs to be pushed, the blade 1 does not need to be pushed all the time, it is convenient to use, when the blade 1 is damaged and needs to be replaced, the fixed tube 7 is clockwise rotated to make the elastic block 14 keep in contact with the inner wall of the guide channel 4, the fixed tube 7 is continuously clockwise rotated to make the clamping block 10 in contact with the inner wall of the movable slot 11, so that the push rod 6 is rotated, with the rotation of the fixed tube 7, the elastic block 14 and the inner wall of the guide channel 4 change from the contact state to the non-contact state and change between the two states, the push rod 6 is rotated to be detached from the threaded tube 5, the push rod 6 is pulled out of the through hole 101 of the blade 1, the old blade 1 is detached, the new blade 1 is put into the accommodating groove 3, the through hole 101 of the new blade 1 corresponds to the threaded tube 5, the push rod 6 passes through the guide channel 4, the through hole 101 of the new blade 1 and is threadedly connected with the threaded tube 5, the installation of the new blade 1 is completed, it is convenient and fast to replace the blade 1.

[0021] The inner wall of the accommodating groove 3 is provided with a guide sliding groove 8, the threaded pipe 5 is provided with a connecting block 9 which is slidably connected with the guide sliding groove 8, the threaded pipe 5 is movable in the accommodating groove 3, the threaded pipe 5 is driven by the push rod 6 to slide in the accommodating groove 3 along the moving direction of the blade 1 when the fixed pipe 7 is pushed, so that the blade 1 is smoothly extended or retracted, the cross section of the guide sliding groove 8 is T-shaped, and the connecting block 9 is clamped with the guide sliding groove 8, so that the threaded pipe 5 is connected with the handle 2 during the movement in the accommodating groove 3, and the blade 1 is stable during the movement.

[0022] The inner wall of the accommodating groove 3 is provided with two rolling grooves 12, the two rolling grooves 12 are respectively arranged on the two sides of the blade 1, and the two rolling grooves 12 are movably connected with the rolling balls 13 which abut against the blade 1, and the rolling balls 13 roll on the blade 1.

[0023] During the movement of the blade 1, the rolling balls 13 in the two movable grooves 11 abut against the blade 1, so that the rolling balls 13 in the two movable grooves 11 clamp the blade 1, the blade 1 is stable during the movement, and the blade 1 is more stable during the use, and the rolling balls 13 roll on the blade 1, so that the movement of the blade 1 is not hindered.

[0024] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and the person skilled in the art can make the common change and replacement within the technical scheme range of the utility model, which should be included in the protection range of the utility model.

Claims

1. A new type of art knife which facilitates replacement of the blade, characterized in that, The utility model provides a cutting tool, including blade (1) and handle (2), and handle (2) is opened the accommodating groove (3) for accommodating blade (1) and the guide channel (4) of intercommunication with accommodating groove (3), and the threaded tube (5) of sliding connection is connected in accommodating groove (3), and blade (1) is in accommodating groove (3) activity, and blade (1) is opened the through -hole (101) with threaded tube (5) corresponds, and handle (2) is equipped with the push rod (6) of sliding in guide channel (4) and the fixed tube (7) of activity connection with push rod (6), push rod (6) passes through through -hole (101) and is connected with threaded tube (5) screw thread, and fixed tube (7) is in guide channel (4) activity, and fixed tube (7) outer wall and guide channel (4) inner wall resist.

2. A new type of art knife with easy replacement blade as claimed in claim 1, wherein, The accommodating groove (3) inner wall is opened the guide slide groove (8), and the threaded tube (5) is installed with the connecting block (9) of sliding connection in guide slide groove (8), and connecting block (9) and guide slide groove (8) are clamped.

3. A new type of art knife with easy replacement blade as claimed in claim 2, wherein, The fixed tube (7) inner wall is installed with the clamping block (10), and the push rod (6) is opened the activity slot (11) with clamping block (10) corresponds, and clamping block (10) is in activity slot (11) sliding, and activity slot (11) is C type and is around push rod (6) setting, and the both sides of fixed tube (7) outer wall are installed with the elastic block (14) of cooperation with guide channel (4) inner wall, and elastic block (14) and guide channel (4) inner wall resist.

4. A new type of art knife with easy replacement blade as claimed in claim 3, wherein, The accommodating groove (3) inner wall is opened two rolling grooves (12), and two rolling grooves (12) are placed respectively on the both sides of blade (1), and two rolling grooves (12) are all movably connected with the ball (13) of resistance with blade (1), and the ball (13) is rolled on blade (1).

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