CN211992949U

CN211992949U - Special scribing knife

Info

Publication number: CN211992949U
Application number: CN202020297735.6U
Authority: CN
Inventors: 廖文生; 曹连花
Original assignee: Jiangxi Saiyu Precision Machinery Co ltd
Current assignee: Jiangxi Saiyu Precision Machinery Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-11-24
Anticipated expiration: 2030-03-12

Abstract

The utility model discloses a special ruling knife, including handle of a knife and blade, the chamber is placed to holding chamber and the locking pillar that is provided with mutual intercommunication in the handle of a knife, the chamber is placed with the locking pillar in holding chamber and the locking pillar is used for holding reserve blade and locking pillar respectively, the locking pillar is used for compressing tightly reserve blade to make reserve blade be fixed in holding chamber lateral wall through the elastic element butt. Through set up a holding chamber that is used for holding reserve blade in the handle of a knife, place reserve blade in this holding intracavity, the blade damages, when needing to be changed, the locking pillar takes out from, and reserve blade gets into the locking pillar and places the chamber under elastic element's effect, can be used to replace former blade and continue to use, provides reserve blade, reduces use cost, improves production efficiency.

Description

Special scribing knife

Technical Field

The utility model relates to a processing cutter technical field, more specifically the theory relates to a special ruling cutter.

Background

The ruling knife comprises handle of a knife and blade, and the blade is usually impressed in the recess of handle of a knife front end, and when the blade damages and needs to be changed, the difficult substitute blade who finds equal specification, under most circumstances, can scrap together with the handle of a knife, and it is with high costs to scrap, and handle of a knife resource is wasted.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome when the blade of ruling knife changes among the prior art, the handle of a knife that probably brings is scrapped simultaneously, causes the technical problem of wasting of resources, provides a special ruling knife, provides reserve blade, reduces use cost.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a special marking knife, includes handle of a knife and blade, be provided with the holding chamber and the locking pillar of mutual intercommunication in the handle of a knife and place the chamber, the holding chamber is used for holding reserve blade and locking pillar respectively with the locking pillar is placed the chamber, the locking pillar is used for compressing tightly reserve blade to make reserve blade be fixed in holding chamber lateral wall through the elastic element butt.

As a further improvement, the utility model discloses still be provided with in the handle of a knife and be located the locking pillar and place the chamber lower extreme and rather than the blade that is used for holding the blade of intercommunication and place the chamber, the blade portion of blade stretches out the handle of a knife and extends to extend and form the free end, the afterbody butt of blade is fixed in the inner wall that the chamber was placed to the blade forms the stiff end.

As a further improvement of the present invention, the locking strut includes a fixedly connected upper strut portion and a lower strut portion.

As a further improvement of the utility model, pillar upper portion is used for driving the pillar lower part and takes out from the locking pillar and place the chamber in order to release the packing force to reserve blade, just pillar upper portion and locking pillar are placed the chamber and are passed through threaded connection.

As a further improvement of the present invention, the pillar lower portion side wall is used for pressing the spare blade, and the pillar lower portion bottom wall is used for pressing the blade fixing end.

As a further improvement of the utility model, the lower part of the supporting column is magnetically connected with the fixed end of the blade.

As a further improvement of the utility model, the circumference equipartition of pillar lower part has the arc convex part.

As a further improvement, the holding cavity and the locking strut are parallel to the center line of the cavity, the locking strut is used for placing the cavity and the blade is used for placing the cavity along the center line of the handle of the knife and for lining up the cavity of the handle of the knife.

As a further improvement of the utility model, the blade is placed the chamber and is big-end-up's toper chamber, the blade stiff end is big-end-up's taper, the blade stiff end is fixed in on the blade places the toper inner wall in chamber through toper inclined plane butt.

As a further improvement of the utility model, an elastic rubber sleeve is arranged between the blade fixed end and the blade placing cavity.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model discloses a special sword of ruling through set up a holding chamber that is used for holding reserve blade in the handle of a knife, places reserve blade in this holding intracavity, and the blade damages, when needing to be changed, and the locking pillar is taken out from, and reserve blade gets into the locking pillar and places the chamber under elastic element's effect, can be used to replace former blade and continue to use, provides reserve blade, reduces use cost, improves production efficiency.

Drawings

FIG. 1 is a schematic view of a structure of a knife handle of a special scribing knife provided by the present invention;

fig. 2 is a schematic structural view of a special scribing knife provided by the present invention;

fig. 3 is an enlarged view of the position a in fig. 2.

The reference numerals in the schematic drawings illustrate:

1. a knife handle; 2. a blade; 11. an accommodating cavity; 12. locking the strut placement cavity; 13. a blade placement cavity; 21. a fixed end; 22. a free end; 3. a spare blade; 4. locking the strut; 41. an upper part of the strut; 42. a lower part of the pillar; 411. an arc-shaped convex part; 5. an elastic element.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The utility model provides a special marking knife, includes handle of a knife 1 and blade 2, is provided with holding chamber 11 and the locking pillar that communicates each other in the handle of a knife 1 and places chamber 12, and holding chamber 11 and locking pillar place chamber 12 and are used for holding reserve blade 3 and locking pillar 4 respectively, and locking pillar 4 is used for compressing tightly reserve blade 3 to make reserve blade 3 be fixed in holding chamber 11 lateral wall through 5 butts of elastic element. Through set up one in handle of a knife 1 and be used for holding chamber 11 of reserve blade 3, place reserve blade 3 in this holding chamber 11, blade 2 damages, when needing to be changed, and locking pillar 4 takes out from, and reserve blade 3 gets into the locking pillar and places chamber 12 under elastic element 5's effect, can be used to replace former blade and continue to use, provides reserve blade 3, reduces use cost, improves production efficiency.

In this embodiment, the elastic element 5 is a compression spring, and when the compression spring is compressed, the compression spring can store a larger elastic potential energy, so that the force rebounded to the spare blade is larger.

In this embodiment, still be provided with in handle of a knife 1 and be located the locking pillar and place 12 lower extremes and rather than the blade that is used for holding blade 2 of intercommunication and place chamber 13, blade 2 is located this blade and places chamber 13, and the blade portion of blade 2 stretches out handle of a knife 1 and extends outward and form free end 22, and the afterbody butt of blade 2 is fixed in the inner wall that the chamber 13 was placed to the blade and forms stiff end 21. Through setting up the blade in handle of a knife 1 and placing chamber 13, fix blade 2 butt at the blade and place chamber 13 inner wall, both realize fixedly through interference fit, when blade 2 damaged, the application of force takes out blade 2 from handle of a knife 1, change reserve blade 3 again can, this kind of detachable connected mode, simple structure is reliable, reduces and scrap the resource, practices thrift the cost.

In this embodiment the locking strut 4 comprises a fixedly connected upper strut part 41 and a lower strut part 42, which are designed as upper and lower parts in order to enable different functions to be performed by different parts of the locking strut 4.

In this embodiment, the upper support portion 41 is used to draw the lower support portion 42 away from the locking support placing cavity 12 to release the pressing force on the spare blade 3, and the upper support portion 41 is screwed into the locking support placing cavity 12. The upper part 41 and the lower part 42 of the support post are fixedly connected, the upper part 41 of the support post inevitably drives the lower part 42 of the support post to move along with the movement, when the spare blade 3 needs to be replaced, the upper part 41 of the support post is drawn out of the locking support post placing cavity 12, the lower part 42 of the support post can be driven to release pressing force on the spare blade 3, the elastic element 5 releases elastic force, the spare blade 3 is ejected, and the operation is easy, simple and convenient; the threaded connection is simple in structure, reliable in connection and low in manufacturing cost.

In this embodiment, the side wall of the post lower portion 42 is used for pressing the spare blade 3, and the bottom wall of the post lower portion 42 is used for pressing the blade fixing end 21. Under the action of the pressing force of the lower part 42 of the support, on one hand, the spare blade 3 can be stably fixed in the accommodating cavity 11, and on the other hand, the blade 2 is reliably fastened in the tool holder 1 and is not easy to loose and the like.

In this embodiment, the lower portion 42 of the support is magnetically connected to the fixed end 21 of the blade, and when the spare blade 3 needs to be replaced, an external force is applied to the blade 2 to release the locking force of the blade 2 on the blade placing cavity 13, and the locking support 4 is pulled to magnetically take out the blade 2 from the locking support placing cavity 12.

In this embodiment, the lower portion 42 of the support column is circumferentially and uniformly distributed with arc-shaped protrusions 421. When the locking strut 4 is screwed to rotate downwards to press the blade fixing end 21, the strut lower part 42 rotates at the same time, and the arc-shaped convex part 421 makes the surface contact between the strut lower part 42 and the side wall of the locking strut placing cavity 12 become point contact, so that the friction force generated when the strut lower part 42 rotates is reduced, and the mechanical abrasion of the strut lower part 42 to the inner wall of the locking strut placing cavity 12 is also reduced.

In this embodiment, the central line that chamber 12 was placed to holding chamber 11 and locking pillar is parallel, and holding chamber 11 and locking pillar place that chamber 12 is parallel and the intercommunication sets up promptly, is convenient for realize on the one hand that locking pillar 4 is to the effect of the locking of reserve blade 3 or release locking power, and on the other hand, reserve blade 3 of being convenient for pops out from holding chamber 11 and passes through to the locking pillar and place chamber 12. The locking support placing cavity 12 and the blade placing cavity 13 are cavities which are along the central line of the knife handle 1 and penetrate through the knife handle 1, and when the blade 2 needs to be taken out, the blade 2 is convenient to enter the locking support placing cavity 12 from the blade placing cavity 13.

In this embodiment, the blade placing cavity 13 is a tapered cavity with a large top and a small bottom, the blade fixing end 21 is tapered with a large top and a small bottom, and the blade fixing end 21 is abutted and fixed on the tapered inner wall of the blade placing cavity 13 through a tapered inclined surface. The shape of the blade fixing end 21 is kept consistent with that of the blade placing cavity 13, the blade 2 can be fixed better, and under the action of external force, the blade fixing end and the blade placing cavity are pressed tightly through the inclined plane to form self-locking force, so that fixation is realized. The fixing mode is simple and reliable, and the locking relation can be released at any time. In this embodiment, an elastic rubber sleeve (not shown) is disposed between the blade fixing end 21 and the blade placing cavity 13. Because blade stiff end 21 is the butt be fixed in the blade place the chamber 13 on the inner wall, the contact site causes mechanical wear easily during the use, reduces the life of handle of a knife 1, and the chamber is placed to the protection blade that rubber elastic sleeve can be fine, reduces wearing and tearing, increase of service life.

In the embodiment, the blade 2 is made of tungsten steel, the tool holder 1 is made of stainless steel, the tungsten steel is high in hardness, wear-resistant, high in strength and toughness and excellent in heat resistance and corrosion resistance, the manufactured tool has the advantages of being high in hardness, strength and wear resistance and the like, the stainless steel tool holder is firm and incomparable due to the fact that a high-frequency welding technology is adopted, the stainless steel tool holder portion can be recycled, resources are saved, and cost is reduced.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a special marking knife, includes handle of a knife (1) and blade (2), its characterized in that: be provided with holding chamber (11) and the locking pillar that communicates each other in handle of a knife (1) and place chamber (12), holding chamber (11) and locking pillar are placed chamber (12) and are used for holding reserve blade (3) and locking pillar (4) respectively, locking pillar (4) are used for compressing tightly reserve blade (3) to make reserve blade (3) be fixed in holding chamber (11) lateral wall through elastic element (5) butt.

2. The special scribing knife as claimed in claim 1, wherein: still be provided with in handle of a knife (1) and be located the locking pillar and place chamber (12) lower extreme and rather than the blade that is used for holding blade (2) of intercommunication and place chamber (13), the blade portion of blade (2) stretches out handle of a knife (1) and extends outward and form free end (22), the afterbody butt of blade (2) is fixed in the inner wall that chamber (13) were placed to the blade forms stiff end (21).

3. The special scribing knife as claimed in claim 2, wherein: the locking strut (4) comprises a fixedly connected upper strut part (41) and a lower strut part (42).

4. The special scribing knife as claimed in claim 3, wherein: the upper support part (41) is used for driving the lower support part (42) to be drawn out of the locking support placing cavity (12) so as to release pressing force on the spare blade (3), and the upper support part (41) is connected with the locking support placing cavity (12) through threads.

5. The special scribing knife as claimed in claim 3, wherein: the side wall of the lower part (42) of the support column is used for pressing the spare blade (3), and the bottom wall of the lower part (42) of the support column is used for pressing the fixed end (21) of the blade.

6. The special scribing knife as claimed in claim 5, wherein: the lower part (42) of the support is magnetically connected with the blade fixing end (21).

7. The special scribing knife as claimed in claim 3, wherein: arc-shaped convex parts (421) are uniformly distributed on the lower part (42) of the strut in the circumferential direction.

8. The special scribing knife as claimed in claim 2, wherein: the central lines of the accommodating cavity (11) and the locking support placing cavity (12) are parallel, and the locking support placing cavity (12) and the blade placing cavity (13) are cavities which are along the central line of the cutter handle (1) and penetrate through the cutter handle (1).

9. The special scribing knife as claimed in claim 2, wherein: the blade is placed chamber (13) and is big-end-up's toper chamber, blade stiff end (21) is big-end-up's toper, blade stiff end (21) are fixed in on the toper inner wall that the chamber (13) was placed to the blade through toper inclined plane butt.

10. The special scribing knife as claimed in claim 9, wherein: an elastic rubber sleeve is arranged between the blade fixing end (21) and the blade placing cavity (13).