CN202192629U

CN202192629U - Double-locking blade bearing of ultra-thin cutting knife

Info

Publication number: CN202192629U
Application number: CN2011202997079U
Authority: CN
Inventors: 谢路
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-17
Filing date: 2011-08-17
Publication date: 2012-04-18
Anticipated expiration: 2021-08-17

Abstract

The utility model discloses a double-locking blade bearing of an ultra-thin cutting knife, which comprises a knife head, a cover plate and a blade. The blade is inserted into a containing cavity formed by the knife head and the cover plate, two positioning notches are arranged on the blade, a knife head notch is disposed on the upper portion of the blade, a locking positioning shell is mounted on the knife head and provided with two locking nails, the two locking nails are positioned in the knife head notch and correspond to the two positioning notches in terms of position, so that each locking nail is fixed into the corresponding positioning notch, a groove is further arranged on the rear side of the upper portion of the blade, a spring is mounted in the groove, and the top end of the spring is in contact fit with the locking positioning shell. When the rear end of the locking positioning shell is pressed, the front end of the locking positioning shell is driven by the spring to move upwards, accordingly, the locking nails are separated from the corresponding knife head notch, and the blade can be taken out. The double-locking blade bearing has the advantages that the blade is replaced easily, the double-locking blade bearing is convenient in use, the blade is connected firmly, and the like.

Description

A kind of ultrathin cutting knife twin-lock blade bearing

Technical field

The utility model relates to a kind of cutter, more particularly, relates to a kind of ultrathin cutting knife twin-lock blade bearing.

Background technology

Traditional cutting knife is divided into fixed, collapsible and telescopic usually, generally is used for cutting paper, cloth, leather etc.Like Chinese patent CN93208241.6 (open day on June 22nd, 1994), disclosed " a kind of telescopic rope cutting knife that cuts " utilizes exactly and push the blade that sliding shoe promotes to be hidden in the handle of a knife and stretch out step by step, but it changed comparatively inconvenience of blade; And Chinese patent CN03223149.0 (open day on December 24th, 2003) discloses " a kind of combined type cutting knife "; Through blade is installed in the groove of tool rest, utilize loam cake and locking plate to cooperate, can change blade comparatively easily; But structure is comparatively complicated; And also need earlier locking plate is opened when changing blade, also there is awkward deficiency in rotary upper cover; Chinese patent CN200420102117.2 (open day on February 8th, 2006) discloses " a kind of cutting knife "; Be that blade is arranged in the mounting groove of tool rest; And fixed hole position is set on tool rest; Through the screw fixed blade in the position, hole, this structure needs tool using when changing blade, also have awkward deficiency.

The utility model content

The technical problem that the utility model will solve provide a kind of change that blade is easy, easy to use, blade is connected firmly ultrathin cutting knife twin-lock blade bearing.

In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:

A kind of ultrathin cutting knife twin-lock blade bearing comprises cutter head, cover plate and is plugged on the blade in the cavity volume that is formed by said cutter head, cover plate; On said blade, be provided with two locating notches; Offer a cutter head breach on said cutter head top; A lock-bit location shell is installed on said cutter head; On the shell of this lock-bit location, be provided with two lock-bits nails and above-mentioned two lock-bits nail is arranged in said cutter head gap position, the position of said two lock-bits nail adapts and above-mentioned lock-bit is followed closely with the position of two locating notches and is separately fixed in one of them locating notch, and; Rear side also is provided with a groove on said cutter head top; The top that a spring and this spring be housed in this groove cooperates with lock-bit location housing contacts, when pressing said lock-bit location outer casing back, moves on the front end of said spring by lock-bit location shell and each lock-bit is followed closely leave corresponding cutter head breach and can take out blade.

After the utility model adopts said structure; When pressing said lock-bit location outer casing back; Move and each lock-bit is followed closely on the front end of said spring by lock-bit location shell and leave corresponding cutter head breach and can take out blade; Promptly when changing blade, only need rotate the gear of unblanking and can blade be taken out to certain angle, it is changed, and blade is easy, use is convenient; Simultaneously, under the lock-out state of blade, two lock-bit nails are separately fixed in one of them locating notch, and each adapts with one of them lock-bit nail because blade has two locating notches, thereby makes pulling force stronger, and it is more firm that blade is connected.

After the detailed description of the embodiment that combines advantages the utility model, it is clearer that characteristics of the utility model and advantage will become.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION figure of the embodiment of the utility model;

Fig. 2 is the sketch map of the embodiment of the utility model;

Fig. 3 is the sketch map of embodiment under the lock state of the utility model;

Fig. 4 is that the embodiment of the utility model is at the sketch map of opening under the state.

Among the figure: cover plate 1, blade 2, locating notch 21, cutter head 3, cutter head breach 31, groove 32, spring 4, lock-bit location shell 5, locating notch 51, lock-bit nail 6, ejector pin 7.

The specific embodiment

With an embodiment the utility model is done further detailed explanation below, but should explain that the protection domain of the utility model is not limited only to this.

Consult Fig. 1 to Fig. 4, a kind of ultrathin cutting knife twin-lock blade bearing comprises cutter head 3, cover plate 1 and is plugged on the blade 2 in the cavity volume that is formed by said cutter head 3, cover plate 1; On said blade 2, be provided with two locating notches 21; Offer a cutter head breach 31 on said cutter head 3 tops; A lock-bit location shell 5 is installed on said cutter head 3; On the shell 5 of this lock-bit location, be provided with two lock-bits nails 6 and above-mentioned two lock-bits nail 6 is arranged in said cutter head breach 31 positions, the position of said two lock-bits nail 6 adapts and can make above-mentioned lock-bit follow closely 6 with the position of two locating notches 21 and is separately fixed in one of them locating notch 21, and; Also be provided with a groove 32 at said cutter head 3 top rear sides; Top and lock-bit location shell 5 contact matching of a spring 4 and this spring 4 are housed in this groove 32, and when pressing shell 5 rear ends, said lock-bit location, said spring 4 lets and moves on the front end of lock-bit location shell 5 and make each lock-bit nail 6 leave corresponding cutter head breach 31 and can take out blade 2.

When this embodiment specifically uses,, therefore, above-mentioned two lock-bits nail 6 is separately fixed in one of them locating notch 21, can makes blade 2 lockings, see Fig. 3 because the position of two lock-bit nails 6 and the position of two locating notches 21 adapt; When needs take out blade 2, at this moment, only need to press shell 5 rear ends, said lock-bit location, promptly spring 4 lets and moves on the front end of lock-bit location shell 5 and make each lock-bit nail 6 leave corresponding cutter head breach 31 and can take out blade 2, sees Fig. 4.

Though described the embodiment of the utility model in conjunction with accompanying drawing; But those skilled in the art can make various distortion or modification within the scope of the appended claims; As long as be no more than the described protection domain of the claim of the utility model, all should be within the protection domain of the utility model.

Claims

1. a ultrathin cutting knife twin-lock blade bearing comprises cutter head (3), cover plate (1) and is plugged on the blade (2) in the cavity volume that is formed by said cutter head (3), cover plate (1); It is characterized in that: on said blade (2), be provided with two locating notches (21); Offer a cutter head breach (31) on said cutter head (3) top; A lock-bit location shell (5) is installed on said cutter head (3); On this lock-bit location shell (5), be provided with two lock-bits nails (6) and above-mentioned two lock-bits nails (6) are arranged in said cutter head breach (31) position; The position of said two lock-bits nails (6) and the position of two locating notches (21) adapt and above-mentioned lock-bit nail (6) is separately fixed in one of them locating notch (21); And rear side also is provided with a groove (32) on said cutter head (3) top, and the top and lock-bit location shell (5) contact matching of a spring (4) and this spring (4) is housed in this groove (32); When pressing shell (5) rear end, said lock-bit location, said spring (4) lets and moves on the front end of lock-bit location shell (5) and make each lock-bit nail (6) leave corresponding cutter head breach (31) and can take out blade (2).