CN218170475U

CN218170475U - Safety knife

Info

Publication number: CN218170475U
Application number: CN202222116870.8U
Authority: CN
Inventors: 傅华良; 方郡华; 邓飞飞
Original assignee: Dongguan Kailai Electronics Co ltd; Dongguan Yingtong Wire Co Ltd
Current assignee: Dongguan Kailai Electronics Co ltd; Dongguan Yingtong Wire Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-12-30
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to the technical field of cutters, in particular to a safety cutter, which comprises a shell, a blade, a pushing part and an elastic part; the shell is provided with a sliding chute; the blade is arranged in the sliding groove in a sliding manner; the pushing part is arranged on the shell in a sliding mode and connected with the blade; the first end of the elastic piece is connected with the shell, and the second end of the elastic piece is connected with the pushing part. The utility model discloses a blade of safety knife is under the condition that need not use, can contract in the casing automatically to avoid under the condition that need not use the blade, the blade causes the condition of fish tail to the people, thereby has improved the utility model discloses a safety knife's safety in utilization performance to have easy operation swift and excellent in use effect's advantage.

Description

Safety knife

Technical Field

The utility model belongs to the technical field of the cutter technique and specifically relates to indicate a safety knife. The utility model discloses a blade of safety knife can contract in the casing automatically under the condition that need not use to avoid under the condition that need not use the blade, the blade causes the condition of fish tail to the people, thereby has improved the utility model discloses a safety knife's safety in utilization performance to have the advantage that easy operation is swift and excellent in use effect.

Background

When the ordinary knife is used, the blade is usually required to be pushed out or folded to be out, so that the blade is exposed to be used. After use, the blade needs to be manually retracted again. However, in most of the using processes, the knife needs to be frequently used, so that the knife cannot be retracted during the using process, the exposed knife is placed aside, and the knife is easily scratched by the exposed knife during the using process, and even a person beside the knife is injured. If the knife blade is frequently retracted and then pushed out or turned over in the process of using the knife for safety, the operation is very troublesome, and much time is wasted, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses problem to prior art provides a safety knife to solve the problem that proposes in the background art.

In order to solve the technical problem, the utility model discloses a following technical scheme: a safety knife comprising:

a housing; the sliding chute is arranged on the shell;

the blade is arranged in the sliding groove in a sliding manner;

the pushing part is arranged on the shell in a sliding mode and is connected with the blade; and

the first end of the elastic piece is connected with the shell, and the second end of the elastic piece is connected with the pushing part.

Preferably, the pushing portion includes a base slidably disposed in the sliding groove, a connecting member disposed on the base, and a pressing block disposed on the connecting member, the base is connected to the blade, and the pressing block is slidably disposed with the housing.

Preferably, a first connecting rod is arranged in the sliding groove, a second connecting rod is arranged on the base, a first end of the elastic piece is connected with the first connecting rod, and a second end of the elastic piece is connected with the second connecting rod.

Preferably, one end of the shell, which is close to the elastic piece, is detachably provided with a mounting part, the mounting part is provided with a cover plate, and the cover plate is used for covering the first connecting rod.

Preferably, the mounting portion is provided with a projection, the housing is provided with a groove, and the projection is used for being closely and slidably connected with the groove.

Preferably, the projection is provided with a positioning piece, the shell is provided with a positioning groove, the positioning groove is used for being connected with the positioning piece in an inserting mode, and the cross-sectional area of the positioning groove is larger than that of the groove.

Preferably, the housing is provided with a moving rail, and the pressing block is slidably provided with the moving rail.

Preferably, the pressing block is provided with a plurality of friction members.

Preferably, a screw is arranged on the shell, the screw is in threaded connection with the shell, and the screw is used for abutting against the blade.

Preferably, the shell is provided with a plurality of grains.

The utility model has the advantages that: the utility model discloses a blade of safety knife is under the condition that need not use, can contract in the casing automatically to avoid under the condition that need not use the blade, the blade causes the condition of fish tail to the people, thereby has improved the utility model discloses a safety knife's safety in utilization performance to have easy operation swift and excellent in use effect's advantage. .

Drawings

Fig. 1 is a schematic view of the overall structure of a safety knife according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an exploded view of a safety knife according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a pushing portion of the safety knife according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an installation portion of a safety knife according to an embodiment of the present invention.

The reference numbers are respectively: 10. a housing; 11. a chute; 12. a moving track; 13. a groove; 14. positioning a groove; 15. grain; 20. a blade; 30. a pushing part; 31. a base; 32. a connecting member; 33. a pressing block; 34. a friction member; 40. an elastic member; 50. a screw; 60. a first link; 70. a second link; 80. an installation part; 81. a cover plate; 82. a bump; 83. a positioning member.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, the present invention relates to a safety knife, which comprises a housing 10, a blade 20, a pushing part 30 and an elastic member 40; the shell 10 is provided with a chute 11; the blade 20 is arranged in the chute 11 in a sliding manner; the pushing part 30 is slidably arranged on the shell 10, and the pushing part 30 is connected with the blade 20; a first end of the elastic member 40 is connected to the housing 10, and a second end of the elastic member 40 is connected to the pushing part 30, and in particular, the elastic member 40 may be a spring. Specifically, when the blade 20 needs to be used during operation, the pushing portion 30 is pushed, the pushing portion 30 moves to drive the blade 20 to move, so that the blade 20 can be pushed out of the housing 10, then the pushing portion 30 is pressed, the blade 20 cannot move, and then the blade 20 can be used for cutting; when the blade 20 is not needed, the pushing part 30 is released, and the blade 20 is retracted into the sliding slot 11 of the housing 10 under the action of the spring. To sum up, the utility model discloses a blade 20 of safety knife can contract in the casing 10 automatically under the condition that need not use blade 20 to avoid under the condition that need not use, blade 20 causes the condition of fish tail to the people, thereby has improved the utility model discloses a safety knife's safety in utilization performance to have easy operation swift and excellent in use effect's advantage.

Further, in the present embodiment, the pushing portion 30 includes a base 31 slidably disposed in the sliding slot 11, a connecting member 32 disposed on the base 31, and a pressing block 33 disposed on the connecting member 32, the base 31 is connected to the blade 20, the pressing block 33 is slidably disposed with the housing 10, specifically, the base 31 is a flat plate, and the connecting member 32 is a rectangular body. So set up, through pressing down and promoting according to the splenium, just can drive blade 20 and remove, have easy operation swift advantage.

Further, in the present embodiment, the pressing block 33 is provided with a plurality of friction members 34, specifically, the friction members 34 are rectangular bodies, and all the friction members 34 are uniformly arranged on the pressing block 33. So set up, can increase the frictional force of finger and according to the briquetting 33 to avoid finger and according to briquetting 33 emergence skidding, and then influence the utility model discloses a normal use of safety knife.

Further, in the present embodiment, the housing 10 is provided with a moving rail 12, and the pressing block 33 is slidably provided with the moving rail 12. The arrangement is such that the pressing block 33 can only slide in the moving rail 12, thereby avoiding the occurrence of slipping and shaking.

Further, in the present embodiment, a screw 50 is disposed on the housing 10, the screw 50 is in threaded connection with the housing 10, and the screw 50 is used for abutting against the blade 20. When needs use safe sword to carry out the operation of longer time, outside releasing casing 10 with the part of blade 20, then rotate screw rod 50 for screw rod 50 contradicts with blade 20, thereby fixes blade 20, so alright with improving the utility model discloses a use convenience of safe sword is convenient for use for a long time the utility model discloses a safe sword carries out the operation.

Further, in the present embodiment, a first link 60 is disposed in the sliding chute 11, a second link 70 is disposed on the base 31, a first end of the elastic member 40 is connected to the first link 60, and a second end of the elastic member 40 is connected to the second link 70. Specifically, the first link 60 is vertically and fixedly disposed in the chute 11, the second link 70 is vertically and fixedly disposed on the base 31, a first end of the spring is wound on the first link 60, and a second end of the spring is wound on the second link 70. So set up, the first end and the second end alright in order to be connected with base 31 and spout 11 firmly to guarantee that the spring can normally pull blade 20.

Further, in the present embodiment, an end of the housing 10 near the elastic member 40 is detachably provided with a mounting portion 80, and the mounting portion 80 is provided with a cover plate 81, and the cover plate 81 is used for covering the first link 60. The arrangement is such that the cover plate 81 can cover the first link 60, thereby avoiding the situation that the operator accidentally touches the spring to affect the cutting operation when in use. And when the spring needs to be changed, the mounting part 80 is detached, so that the cover plate 81 can be detached, the shielding effect of the cover plate 81 is reduced, and the spring can be changed.

Further, in this embodiment, the mounting portion 80 is provided with a protrusion 82, the housing 10 is provided with a groove 13, the protrusion 82 is used for being tightly slidably connected with the groove 13, so as to insert the protrusion 82 into the groove 13, so that the mounting portion 80 and the housing 10 can be fixed, when the mounting portion 80 needs to be detached, the mounting portion 80 can be detached from the housing 10 by pulling the mounting portion 80 with force, and the mounting and detaching operation modes are very simple and easy to operate.

Further, in the present embodiment, a positioning element 83 is disposed on the protrusion 82, the housing 10 is provided with a positioning slot 14, the positioning slot 14 is used for being inserted into the positioning element 83, and a cross-sectional area of the positioning slot 14 is larger than a cross-sectional area of the groove 13. Specifically, the positioning block and the positioning groove 14 are both rectangular bodies, and the positioning groove 14 is communicated with the groove 13. So set up, play the positioning action, conveniently can install on casing 10a fast in installation department 80, can prevent simultaneously that installation department 80 from taking place to rock.

Further, in the present embodiment, the housing 10 is provided with a plurality of grains 15. So set up, can increase frictional force for the operator can more closely hold casing 10, improves the utility model discloses a safety knife's stability in use.

The following is a complete description of the principle of the safety knife of this embodiment: when the blade 20 needs to be used, the blade 20 can be driven to move by pressing and pushing the pressing part, so that the blade 20 can be pushed out of the shell 10, then the pressing part is pressed, the blade 20 cannot move, and then the blade 20 can be used for cutting; when the blade 20 is not needed, the pressing part is released, and the blade 20 is retracted into the chute 11 of the housing 10 under the action of the spring. And when the spring needs to be changed, the mounting part 80 is detached, so that the cover plate 81 can be detached, the shielding effect of the cover plate 81 is reduced, and the spring can be changed.

This has the beneficial effect that: the utility model discloses a blade 20 of safety knife can contract in the casing 10 automatically under the condition that need not use to avoid under the condition that need not use blade 20, blade 20 causes the condition of fish tail to the people, thereby has improved the utility model discloses a safety knife's safety in utilization performance to have easy operation swift and excellent in use effect's advantage.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. A safety knife, comprising:

a housing; the sliding chute is arranged on the shell;

the blade is arranged in the sliding groove in a sliding manner;

2. The safety knife of claim 1, wherein: the pushing portion comprises a base arranged in the sliding groove in a sliding mode, a connecting piece arranged on the base and a pressing block arranged on the connecting piece, the base is connected with the blade, and the pressing block and the shell are arranged in a sliding mode.

3. The safety knife of claim 2, wherein: the sliding groove is internally provided with a first connecting rod, the base is provided with a second connecting rod, the first end of the elastic piece is connected with the first connecting rod, and the second end of the elastic piece is connected with the second connecting rod.

4. A safety knife according to claim 3, wherein: the casing is close to the one end detachably of elastic component and is provided with the installation department, the installation department is equipped with the apron, the apron is used for covering first connecting rod.

5. The safety knife according to claim 4, wherein: the installation department is equipped with the lug, the casing is equipped with the recess, the lug be used for with recess ground sliding connection closely.

6. The safety knife of claim 5, wherein: the locating piece is arranged on the protruding block, the shell is provided with a locating groove, the locating groove is used for being connected with the locating piece in an inserting mode, and the cross-sectional area of the locating groove is larger than that of the groove.

7. The safety knife of claim 2, wherein: the shell is provided with a moving track, and the pressing block and the moving track are arranged in a sliding mode.

8. The safety knife of claim 2, wherein: the pressing block is provided with a plurality of friction pieces.

9. The safety knife according to claim 1, wherein: the shell is provided with a screw rod, the screw rod is in threaded connection with the shell, and the screw rod is used for abutting against the blade.

10. The safety knife according to claim 1, wherein: the shell is provided with a plurality of grains.