CN220762710U

CN220762710U - Circular knife for cutting

Info

Publication number: CN220762710U
Application number: CN202322244069.6U
Authority: CN
Inventors: 荣耀
Original assignee: Ningbo Yonghong Daily Necessities Co ltd
Current assignee: Ningbo Yonghong Daily Necessities Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-04-12
Anticipated expiration: 2033-08-21

Abstract

The application discloses circular knife cuts out, including handheld portion, circular blade, blade shell and removable fender piece, the one end of handheld portion is provided with circular blade installation department, circular blade connects on the circular blade installation department; the hand-held part is provided with a sliding groove, the sliding groove is connected with a pushing block in a sliding way, the pushing block is connected with the cutter shell and used for driving the cutter shell to move and switch between a first position and a second position, the cutter shell covers the circular cutter blade when in the first position, and the blocking piece is connected in the sliding groove to limit the pushing block to slide; when the blocking piece is moved out, the pushing block can drive the cutter shell to move from the first position to the second position, and the circular cutter blade is exposed out of the cutter shell. The utility model provides a tailor circular knife can solve among the conventional art that the user opens circular blade and causes circular blade damage or cuts the phenomenon emergence of people because of the maloperation.

Description

Circular knife for cutting

Technical Field

The application relates to the field of cutting tools, in particular to a circular cutter for cutting.

Background

Circular cutting hobs are tools for cutting materials such as cloth, paper, leather, etc., also known as circular knives or rotary knives. It consists of a circular blade, a blade shell and a cutter shaft, wherein the circular blade can be replaced generally. Circular cutting hobs come in a variety of sizes and types, such as large hair, Φ32x50, etc., depending on the specification and use. When in use, the circular cutting hob rotates along the rotating shaft, and meanwhile, the circular blades cut cloth, paper and leather into the required shape and size. The tool is widely applied to the textile manufacturing industries such as clothing, bags, tents and the like.

The traditional circular cutting hob comprises a sliding pushing block, the pushing block controls the cutter shell to move to form eccentricity (the circular cutter can be used after being separated from the coverage surface of the cutter shell) or coaxiality (the circular cutter falls into the coverage surface of the cutter shell to form protection for the circular cutter and a human body), but the structure has the defect that the pushing block has no locking structure, and a user can open the circular cutter by misoperation easily, so that the circular cutter is damaged or cut.

Disclosure of Invention

The utility model aims at providing a restriction ejector pad gliding tailors circular knife to solve among the prior art that the user opens circular blade because of the maloperation and causes circular blade damage or cut the phenomenon emergence of people.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the circular cutter comprises a handheld part, a circular cutter blade, a cutter shell and a removable baffle piece, wherein one end of the handheld part is provided with a circular cutter blade mounting part, and the circular cutter blade is connected to the circular cutter blade mounting part; the hand-held part is provided with a sliding groove, the sliding groove is connected with a pushing block in a sliding way, the pushing block is connected with the cutter shell and used for driving the cutter shell to move and switch between a first position and a second position, the cutter shell covers the circular cutter blade when in the first position, and the blocking piece is connected in the sliding groove to limit the pushing block to slide; when the blocking piece is moved out, the pushing block can drive the cutter shell to move from the first position to the second position, and the circular cutter blade is exposed out of the cutter shell.

In the cutting circular knife, the bottom of the blocking piece is provided with the limiting column, and the bottom of the sliding groove is provided with the limiting hole which is connected with the limiting column in a matched mode.

In the circular cutting knife, the aperture of the limiting hole is smaller than the outer diameter of the limiting column, the limiting column comprises a notch which radially penetrates through the limiting column and forms a plurality of elastic ends relative to the notch, and the elastic ends are inserted into the limiting hole.

In the circular cutting knife, the direction of the notch is perpendicular to the sliding direction of the pushing block.

In the circular cutting knife, the knife shell comprises a kidney-shaped hole in a straight line, the length extension direction of the kidney-shaped hole is the same as the moving direction of the pushing block, and the screw penetrates through the kidney-shaped hole.

In the circular cutting knife, the pushing block comprises a pressing plate which is elastically reset and limiting plates which are positioned on two sides of the pressing plate and are elastically reset, and a space is arranged between the limiting plates and the pressing plate.

In the circular cutting knife, the side end of the sliding groove is provided with a plurality of limiting grooves, and the side end of the limiting plate is provided with limiting protrusions which are clamped with the limiting grooves in a matched mode.

In the cutting circular knife, a locking block facing to the position of the limiting plate is arranged on one side of the pressing plate, which is positioned at the interval; when the locking blocks are positioned in the interval, the limiting plates are propped against the locking blocks and cannot move in the direction of the pressing plates, and when the pressing plates are pressed down to enable the locking blocks to be lower than the lower portions of the limiting plates, the limiting of the movement of the limiting plates in the direction of the pressing plates is released.

In the above-mentioned circular cutting knife, the surface of the holding part is provided with a groove for accommodating fingers, and the top of the blocking piece is provided with an extension end extending backwards.

In the circular cutting knife, the annular protrusion and the annular groove which are matched with each other are arranged between the outer peripheral wall of the limiting column and the inner peripheral wall of the limiting hole.

Compared with the prior art, the beneficial effect of this application lies in:

a. a blocking piece which can be installed in the sliding groove is designed, and the blocking piece can prop against the pushing block to control the movement of the cutter shell so as to prevent the circular cutter blade from being exposed by the cutter shell, so that the phenomenon that the circular cutter blade is damaged or cut by a user due to the fact that the circular cutter blade is opened by misoperation can be solved.

b. One end of the baffle piece is provided with an extending end extending towards the direction of the groove, and a user can push the extending end against by a finger and press upwards to separate the baffle piece from the sliding groove.

c. Annular protrusions and annular grooves which are matched with each other are arranged between the outer peripheral wall of the limiting column and the inner peripheral wall of the limiting hole, so that the firmness between the limiting column and the limiting hole can be enhanced.

d. The limit post is provided with the incision with ejector pad slip direction vertically, makes the limit post break away from spacing hole more laborsaving.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a plan view of the present utility model;

FIG. 4 is a cross-sectional view of A-A of FIG. 3;

FIG. 5 is an enlarged view of B in FIG. 3;

FIG. 6 is an enlarged view of C in FIG. 4;

in the figure: the hand-held part is 1, the round blade is 2, the cutter shell is 3, the baffle is 4, the screw is 5, the nut is 6, the round blade is 7, the installation part is 8, the sliding groove is 9, the pushing block is 10, the notch is 11, the limit post is 12, the limit hole is 13, the elastic end is 14, the waist-shaped hole is 15, the pressing plate is 16, the spacing is 17, the limit groove is 18, the limit protrusion is 19, the locking block is 20, the groove is 21, the extension end is 22, the pressing protrusion is 23, the annular protrusion is 24, and the annular groove is 25.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

Examples: as shown in fig. 1-6, a circular cutting knife comprises a hand-held part 1, a screw 5, a nut 6, a circular blade 2, a blade shell 3 and a removable blocking piece 4, wherein the diameter of the blade shell 3 is larger than that of the circular blade 2, one end of the hand-held part 1 is provided with a circular blade mounting part 7, and the screw 5 sequentially penetrates through the circular blade 2, the blade shell 3 and the circular blade mounting part 7 and then is spirally connected with the nut 6; the hand-held part 1 is provided with a sliding groove 8, the sliding groove 8 is connected with a push block 9 in a sliding way, the push block 9 is connected with the cutter shell 3 and is used for driving the cutter shell 3 to move and switch between a first position and a second position, the cutter shell 3 covers the circular cutter blade 2 in the first position, so that the cutter shell 3 can protect the cutter blade 2, and the baffle 4 is connected in the sliding groove 8 to limit the push block 9 to slide; when the blocking member 4 is removed, the push block 9 may drive the cutter housing 3 from the first position to the second position and expose the circular blade 2 to the cutter housing 3. The push block 9 can prevent the blade 2 from being damaged or cut staff caused by the movement of the blade 2 controlled by the push block due to misoperation.

In particular, the blocking member 4 is coupled to the sliding groove 8, and the push block 9 cannot control the movement of the cutter housing 3, so that the exposure of the circular cutter 2 can be prevented.

The cutter housing 3 comprises a kidney-shaped hole 14 in a straight line, the length extension direction of the kidney-shaped hole 14 is the same as the moving direction of the push block 9, and the screw 5 passes through the kidney-shaped hole 14, so that the kidney-shaped hole 14 of the cutter housing 3 is driven to move along the screw 5 while pushing.

The push block 9 comprises a pressing plate 15 which is elastically reset and limiting plates 16 which are positioned on two sides of the pressing plate 15 and elastically reset, a space 17 is arranged between the limiting plates 6 and the pressing plate 15, the space 17 forms a movable space for deformation of the limiting plates 16, the pressing plate 15 can be pressed down, the limiting plates 16 can move towards the direction of the pressing plate 15, a plurality of limiting grooves 18 are formed in the side ends of the sliding grooves 8, two groups of limiting grooves are arranged along the sliding direction of the push block 9, limiting protrusions 19 are arranged at the side ends of the limiting plates, the limiting protrusions 19 are clamped with one group of limiting grooves 18 in a matched mode, and the protrusions 19 are clamped with one of the limiting grooves 18 through the reset pressure of the limiting plates 16, so that the movement limiting of the push block can be realized.

The top of the pressing plate 15 is provided with an arc-shaped pressing protrusion 23, which is convenient for manual pressing and forward and backward pushing, and in order to prevent the cutter shell 3 from moving due to contact stress with foreign objects, one side of the pressing plate 15, which is positioned at the interval 17, is provided with a locking block 20 facing the position of the limiting plate 16; when the locking block 20 is located in the space 17, the limiting plate 16 is propped against by the locking block 20 and cannot move in the direction of the pressing plate, even if the cutter shell 3 is contacted with an external object, the cutter shell cannot be pushed by the external object, and when the pressing plate 15 is pressed down to enable the locking block to be lower than the lower part of the limiting plate, the limiting plate 16 is released from limiting the movement in the direction of the pressing plate.

In order to facilitate the baffle 4 to be fixed in the sliding groove 8, the bottom of the baffle 4 is provided with a limit post 11, the bottom of the sliding groove 8 is provided with a limit hole 12 which is matched and connected with the limit post to enable the baffle 4 to fall into the sliding groove 8 and prop against the push block 9 to limit the sliding of the cutter shell 3, so that the push block can not drive the cutter shell 3 to move backwards to enable the circular cutter blade 2 to be exposed, and the phenomenon that the circular cutter blade is damaged or cut by a user because the circular cutter blade is opened by misoperation can be solved.

The surface of the hand-held part 1 is provided with a groove 21 for accommodating fingers, the top of the baffle 4 is provided with an extension end 22 extending backwards, the baffle 4 is dismounted, and the fingers only need to extend into the groove 21 to prop up and push the extension end 22, so that the baffle 4 is dismounted, and the operation is very convenient.

In order to improve the connection strength between the limit post 11 and the limit hole 12, an annular protrusion 24 and an annular groove 25 which are matched with each other are arranged between the outer peripheral wall of the limit post 11 and the inner peripheral wall of the limit hole 12.

In addition, the limiting post 11 comprises a notch 10 penetrating through the limiting post in the radial direction and forms a plurality of elastic ends 13 opposite to the notch 10, the elastic ends 13 are inserted into the limiting holes 12, and the spacing post 11 and the limiting holes 12 are separated more labor-saving through the structure.

The direction of the notch 10 is perpendicular to the sliding direction of the push block 9, so that the elastic ends 13 are distributed front and back, and when a finger pushes against and pushes the extension end 22, a front and back pushing force is caused, and the pushing force can just push the elastic ends 13 to deform towards the notch direction, so that the overall outer diameter of the limit post 11 is changed, and the limit post 11 is more convenient to separate from the limit hole 12.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. The circular cutter is characterized by comprising a handheld part (1), a circular cutter blade (2), a cutter shell (3) and a removable baffle (4), wherein one end of the handheld part (1) is provided with a circular cutter blade mounting part (7), and the circular cutter blade (2) is connected to the circular cutter blade mounting part (7); the hand-held part (1) is provided with a sliding groove (8), the sliding groove (8) is connected with a push block (9) in a sliding way, the push block (9) is connected with the cutter shell (3) and is used for driving the cutter shell (3) to move and switch between a first position and a second position, the cutter shell (3) covers the circular cutter blade (2) when in the first position, and the baffle (4) is connected in the sliding groove (8) so as to limit the push block (9) to slide; when the blocking piece (4) is moved out, the pushing block (9) can drive the cutter shell (3) to move from the first position to the second position, and the circular cutter blade (2) is exposed out of the cutter shell (3).

2. The circular cutting knife according to claim 1, wherein a limit post (11) is arranged at the bottom of the blocking piece (4), and a limit hole (12) matched and connected with the limit post is arranged at the bottom of the sliding groove (8).

3. Cutting circular knife according to claim 2, characterized in that the limit post (11) comprises a slit (10) passing radially therethrough and forming a plurality of elastic ends (13) opposite the slit (10), the elastic ends (13) being inserted in the limit holes (12).

4. A cutting circular knife according to claim 3, characterized in that the direction of the cut (10) is perpendicular to the sliding direction of the push block (9).

5. A cutting circular knife according to claim 3, characterized in that an annular protrusion (24) and an annular groove (25) which are mutually matched are arranged between the outer peripheral wall of the limit post (11) and the inner peripheral wall of the limit hole (12).

6. The circular cutting knife according to claim 1, wherein two sides of the push block (9) are provided with limiting plates (16) which are elastically reset, a space (17) is arranged between the limiting plates (16) and the pressing plate (15), and the space (17) forms a movable space for deformation of the limiting plates (16); the side end of the sliding groove (8) is provided with a plurality of limiting grooves (18), and the side end of the limiting plate (16) is provided with limiting protrusions (19) which are matched and clamped with the limiting grooves (18).

7. The circular cutting knife according to claim 6, wherein the pushing block (9) is further provided with a pressing plate (15) which is positioned between two limiting plates (16) and is pressed down for resetting, and a locking block (20) is arranged at the side end of the pressing plate (15); when the locking block (20) is positioned in the interval (17), the limiting plate (16) is propped against by the locking block (20) and cannot move in the direction of the interval (17), and when the pressing plate (15) is pressed down to enable the locking block to be lower than the lower part of the limiting plate, the limiting plate (16) is released from limiting the movement in the direction of the interval (17).

8. Cutting circular knife according to claim 1, characterized in that the surface of the hand-held part (1) is provided with a finger-receiving recess (21), the top of the stop (4) being provided with a rearwardly extending extension (22).