CN217833726U

CN217833726U - Cutting knife

Info

Publication number: CN217833726U
Application number: CN202221764140.2U
Authority: CN
Inventors: 孙学文
Original assignee: Jishan Hengfeng Diamond Tools Co ltd
Current assignee: Jishan Hengfeng Diamond Tools Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-18
Anticipated expiration: 2032-07-08

Abstract

The utility model provides a cutting knife relates to cutting means technical field, operates the big technical problem of the complicated degree of difficulty when having solved the cutting knife cutting curve that exists among the prior art. The cutting knife comprises a knife handle, a knife head and a first connecting piece, wherein a mounting hole is formed in one end of the knife handle, the first connecting piece is arranged in the mounting hole, the first end of the knife head is a cone, the second end of the knife head is located outside the mounting hole, a cutting edge is arranged on the outer side of the mounting hole, a round hole coaxial with the axis of the knife head is formed in the first connecting piece, and the local part of the first end stretches into the round hole. The utility model is used for realize the rotation of cutting head among the cutting process through the cutter head that sets up can rotate, the curve cutting can be accomplished in the rotation of cutter head during the cutting, no longer need rotatory wrist or object to rotate and cut, reduce the cutting degree of difficulty.

Description

Cutting knife

Technical Field

The utility model belongs to the technical field of the cutting means technique and specifically relates to a cutting knife is related to.

Background

The cutting knife is the instrument that often uses in daily, often uses in cutting scraps of paper and other aspects, if when meetting needs the curve cutting, just as the rotation that needs the normal running fit object of operating personnel wrist to accomplish the cutting with regard to the cutting knife that uses at present, and the degree of difficulty that the operation is complicated and wayward causes the cutting improves.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutting knife, the technical problem that the complicated degree of difficulty of operation is big when having solved the cutting knife cutting curve that exists among the prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a cutting knife, including handle of a knife, tool bit and first connecting piece, the one end of handle of a knife has the mounting hole, first connecting piece sets up in the mounting hole, the first end of tool bit is the cone, the second end of tool bit is located just have the cutting edge outside the mounting hole, first connecting piece on have with the coaxial round hole of tool bit axis, the part of first end stretches into in the round hole.

Preferably, the first connecting piece includes a connecting cylinder and a first bearing disposed in the connecting cylinder, and a bearing hole of the first bearing is the circular hole.

Preferably, one end of the connecting cylinder, which is far away from the first bearing, is provided with a magnet, the first end is made of magnetic metal, and the magnet attracts the first end.

Preferably, the bearing further comprises a second bearing, the second bearing is arranged in the mounting hole, and the first end penetrates through the second bearing and abuts against the bearing hole of the first bearing.

Preferably, a spring is disposed between the first bearing and the second bearing.

Preferably, the handle of a knife includes the body of rod, pole head and second connecting piece, the pole head pass through the second connecting piece with the body of rod is connected, the mounting hole sets up in the pole head.

Preferably, the second connecting piece is a rod body structure with external threads at two ends, threaded holes are formed in the rod body and the rod head, and the rod body and the rod head are screwed together through the second connecting piece.

Preferably, the club head is externally provided with anti-slip lines.

Preferably, the included angle between the cutting edge of the cutting edge and the axis of the cutter head is less than 50 degrees, and the tip end of the cutting edge is in a triangular conical shape.

This application adopts above technical scheme, possesses following beneficial effect at least:

set up the mounting hole on the handle of a knife, the rotatable setting of tool bit is in the mounting hole, good rotatability of tool bit can be realized in the cooperation between cone and the round hole, when the cutting, when holding the cutting knife and driving it and remove along with the staff, the part of cutting edge stretches into in waiting to cut the object, along with the change of moving direction, the tool bit also can receive the area and cut the object and make the tool bit rotatory to its effort, make the blade of tool bit towards moving direction, finally can accomplish the cutting under the condition of guaranteeing wrist and object motionless, make the cutting simplistic, reduce the cutting degree of difficulty.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a partial sectional structure of a cutting knife provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of a cutter head provided by an embodiment of the present invention;

fig. 3 is a schematic view of a local mounting structure of a second bearing according to an embodiment of the present invention;

fig. 4 is a schematic view of a rod body structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second connecting member according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a cutting knife provided by the embodiment of the present invention.

In the figure 1, a knife handle; 2. a cutter head; 3. mounting holes; 4. a first connecting member; 5. a first end; 6. a second end; 7. a circular hole; 8. a connecting cylinder; 9. a first bearing; 10. a magnet; 11. a second bearing; 12. a spring; 13. a rod body; 14. a club head; 15. a second connecting member; 16. and (4) anti-skid lines.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The specific embodiment of the utility model provides a cutting knife, it is shown in combination drawing 1, mainly include handle of a knife 1 and tool bit 2, the one end of handle of a knife 1 has mounting hole 3, first connecting piece 4 sets up in the mounting hole, and the first end 5 of tool bit 2 is the cone, and second end 6 of tool bit 2 is located mounting hole 3 outer and has the cutting edge, has on the first connecting piece 4 with the coaxial round hole 7 of 2 axes of tool bit, and the part of first end 5 stretches into in the round hole 7.

Handle of a knife 1 is used for making things convenient for operating personnel's gripping, and be used for installation tool bit 2, handle of a knife 1 can be as shown straight structure in FIG 1 for this, also can be crank shape structure, the concrete shape setting of handle of a knife 1 can be adjusted as required, combine FIG 2 and FIG 6 to show, the size and the shape of cutting edge can carry out corresponding setting according to actual conditions, for making it be more superior to the cutting in this application, can be lighter and thinner with the blade design of cutting edge, the blade of cutting edge and the contained angle of 2 axes of tool bit are less than 50 degrees, the most advanced of cutting edge becomes the triangle taper type, so that can make its cutting scope wider. The cutter head 2 is a main cutting part, the conical first end of the cutter head 2, the cone is coaxial with the axis of the cutter head 2, the tip direction of the cone faces the direction far away from the cutter head 2, when the cutter head is installed, the tip direction faces the round hole 7, and the part of the cone can extend into the round hole 7, the wall surface of the cone is abutted against the hole position of the round hole 7, the cutter head 2 connected in the mode enables the cutter head 2 and the cutter handle 1 to rotate well, so that the cutter head 2 can rotate freely, when the cutter head is used for cutting an object, the part of the cutter head 2 can penetrate into the object, when an operator holds the cutter to change the direction, the cutter head 2 can also rotate, because the part of the tip of the cutter head 2 penetrates into the object, the cutting direction changes, the cutter head 2 can be blocked by the object to enable the cutter head to turn, the cutter edge of the cutter head 2 slides smoothly towards the moving direction, for example, when the cutter head 2 is used for vertical cutting, the horizontal direction exerts an acting force, the cutter head 2 is locally in the object, the direction changes, the direction of the cutter head 2 does not tend to move towards the direction of the cutter head 2, and the cutter head 2 does not tend to move towards the direction of the object, and the direction of the cutter head 2 only tends to move towards the direction to be blocked to be less, and the direction of the object to be less tendency of the direction of the cutter head 2.

In one embodiment, the first connecting member 4 is adopted to connect the cutter head 2, the first connecting member 4 includes a connecting cylinder 8 and a first bearing 9, as shown in fig. 3, one end of the connecting cylinder 8 has a hole, the first bearing 9 is disposed in the hole, an axial direction of the first bearing 9 is coaxial with an axial direction of the connecting cylinder 8, at this time, a bearing hole of the first bearing 9 is coaxial with an axial line of the cutter head 2, and it is ensured that the first end 5 extends into the bearing hole, so as to realize rotatable connection.

For this reason, a magnet 10 is further disposed in the mounting hole 3, the magnet 10 is disposed in the mounting hole 3, and the material of the corresponding first end 5 is a magnetic metal, wherein the specific material may be iron. Magnet 10 can adsorb this magnetic metal's first end 5, so alright can realize dismantling of tool bit 2 and connect, and can extract it at any time and preserve or change, set up magnet 10 on connecting cylinder 8 in this application, a hole is seted up once more to the one end that first bearing 9 was kept away from to connecting cylinder 8, this hole then is used for installing magnet 10, two hole intercommunications and press close to, the centre separates through the spacing piece of annular slice, so set up when the bearing hole department of first bearing 9 is supported at first end 5 of tool bit 2, magnet 10 just can produce the effort of attracting first end 5, so the interval sets up and can also avoid magnet 10 to adsorb too firmly and influence the rotation of tool bit 2, can also play the fixed effect of magnetism.

Combine figure 1, still include second bearing 11, second bearing 11 sets up at the mounting hole and be close to the opening part of mounting hole, first end 5 passes and supports tightly on first bearing 9 behind this second bearing 11, first bearing 9 and second bearing 11, can be when guaranteeing firm connection tool bit 2, guarantee the rotation of tool bit 2, tool bit 2 can pass second bearing 11, and the pivoted is connected on first bearing 9, this moment magnet 10 still can adsorb this tool bit 2, this kind of mode can realize the dismantlement of tool bit 2, in the in-service use, only need with tool bit 2 insert in mounting hole 3 can, after finishing using only need extract can with it.

With reference to fig. 1, 4 and 5, the hilt 1 of the present application includes a shaft body 13, a club head 14 and a second connecting member 15, the club head 14 is connected to the shaft body 13 through the second connecting member 15, and the mounting hole 3 is disposed in the club head 14.

Body of rod 13 can be the penholder shape, makes things convenient for operating personnel's gripping, can dismantle between the pole head 14 and the body of rod 13 to be connected, and this pole head 14 has inner space and both ends opening, and an opening is the screw hole, also sets up the screw hole in body of rod 13 one end, and second connecting piece 15 all has the body of rod structure of external screw thread for both ends, and body of rod 13 and pole head 14 can be realized dismantling the connection through the mode of twisting to this kind of double-end screw's form.

The end of the rod head 14 far away from the threaded hole is a through hole for inserting the cutter head 2, the through hole and the inner space form a mounting hole 3, the first bearing 9 is arranged at the end close to the through hole in the rod body 12, the combined part formed by the second bearing 11 and the magnet 10 is arranged at the end close to the threaded hole, and the spring 12 is arranged between the first bearing 9 and the second bearing 11, so that the first bearing 9 and the second bearing 11 can be unfolded through the spring 12.

The anti-skidding lines 16 are arranged outside the rod head, so that the anti-skidding function is achieved, and the use by operators is facilitated.

When installing this cutting knife, earlier put into inside the pole head 14 from the screw hole department with first bearing 9, then put into the spring, put into the conjunction of second bearing 11 and magnet 10, at last will connect the second connecting piece 15 of the good body of rod 13 and twist soon on

pole head

14, 1 part equipment of handle of a knife of cutting knife finishes this moment, when needs use the cutting knife cutting, just can with the tool bit 2 insert in the pole head 14 can, adsorb through magnet 10, when not needing to use or when changing tool bit 2, only need take it out can.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a cutting knife, its characterized in that, includes handle of a knife (1), tool bit (2) and first connecting piece (4), the one end of handle of a knife (1) has mounting hole (3), first connecting piece (4) set up in mounting hole (3), first end (5) of tool bit (2) are the cone, second end (6) of tool bit (2) are located just have the cutting edge outside mounting hole (3), have on first connecting piece (4) with coaxial round hole (7) of tool bit (2) axis, the part of first end (5) stretches into in round hole (7).

2. The cutting burr according to claim 1, characterized in that the first connection piece (4) comprises a connection cylinder (8) and a first bearing (9) arranged in the connection cylinder (8), wherein a bearing hole of the first bearing (9) is the circular hole (7).

3. The cutting knife according to claim 2, characterized in that a magnet (10) is arranged at an end of the connecting cylinder (8) remote from the first bearing (9), the first end (5) is made of magnetic metal, and the magnet (10) magnetically attracts the first end (5).

4. The cutting burr according to claim 2, further comprising a second bearing (11), the second bearing (11) being arranged in the mounting hole (3), the first end (5) passing through the second bearing (11) and abutting against a bearing hole of the first bearing (9).

5. The cutting burr according to claim 4, characterized in that a spring (12) is arranged between the first bearing (9) and the second bearing (11).

6. The cutting knife according to claim 1, characterized in that the shank (1) comprises a shank (13), a head (14) and a second connecting piece (15), the head (14) being connected to the shank (13) via the second connecting piece (15), the mounting hole (3) being provided in the head (14).

7. The cutting burr according to claim 6, characterized in that the second connecting piece (15) is a rod structure with an external thread at both ends, that the rod (13) and the rod head (14) are provided with threaded holes, and that the rod (13) and the rod head (14) are screwed together by means of the second connecting piece (15).

8. The cutting burr of claim 7, characterized in that the head (14) is externally provided with an anti-slip thread (16).

9. The cutting burr of claim 1, characterized in that the angle between the cutting edge of the cutting edge and the axis of the cutting head (2) is less than 50 degrees, and the tip of the cutting edge is in the shape of a triangular pyramid.