CN202344551U

CN202344551U - Folding safe knife

Info

Publication number: CN202344551U
Application number: CN2011205048278U
Authority: CN
Inventors: 王伟毅
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: HANGZHOU LIANHE ELECTRICAL MANUFACTURING CO., LTD.
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2012-07-25
Anticipated expiration: 2021-12-07

Abstract

The utility model discloses a folding safe knife. A blade of an existing folding manual knife always extends out of a knife rest and easily causes potential safety hazards of scratching, stabbing and the like. The folding safe knife comprises a knife handle, a knife head and a blade. The knife head is provided with a slit extending in the front and back direction, the front end of the knife head is provided with an opening, a knife rest capable of sliding in the front and back direction is arranged in the knife head, an elastic element backwards exerting elastic force on the knife rest is connected between the knife rest and the knife head, the knife rest is provided with a push button exposed out of the knife head from the slit, and the blade is arranged on the knife rest corresponding to the opening and can extend out of and retract in the knife head through the opening. After being pushed out of the knife handle by the knife rest, the blade automatically retracts back into the knife handle under the effect of elastic force of a restoring elastic part and is prevented from extending out of the knife handle, and the potential safety hazards and the condition that the blade is damaged and discarded are removed. In addition, the knife head is foldable and convenient to store and carry.

Description

Folding guarded knife

Technical field

The utility model belongs to hand-operated tools, a kind of specifically folding guarded knife.

Background technology

The hand knife of existing foldable structure is on handle of a knife, to pass through pivotal connection one knife rest, and blade is installed on knife rest; Thereby can be with knife rest being drawn in the accommodating groove of handle of a knife together with blade through rotating turret; Be convenient to during use grip, volume is little during gathering, is convenient to deposit, carry.But the hand knife of this structure; Blade stretches out outside knife rest always; Be prone to cause and scratch potential safety hazard such as stab (as in deployed condition, between folding and the expansion two states during conversion); And the blade that stretches out (especially blade) is collided injuries such as being prone to cause turned, gap and meets with discardedly, causes waste.

The utility model content

The technical problem that the utility model will solve and the technical assignment of proposition are to overcome the defective that the blade that has the folding manual cutter now stretches out potential safety hazards such as outside knife rest, being prone to cause that scuffing is stabbed always, and a kind of folding guarded knife is provided.

For achieving the above object; The folding guarded knife of the utility model; Comprise handle of a knife, cutter head, blade, described handle of a knife has accommodating groove, described cutter head through pivotal connection on the handle of a knife and can be through launching in the said accommodating groove around said pivoted or drawing in to said accommodating groove; It is characterized in that: offer the slit that fore-and-aft direction extends on the described cutter head; The front end of said cutter head is established opening, establish in the described cutter head one can before and after the knife rest that slides, between described knife rest and cutter head, be connected the flexible member of described knife rest to after-applied elastic force; Described knife rest is provided with the push button that exposes cutter head from said slit, and the corresponding described opening of described blade is installed on the described knife rest and can stretches out and the indentation cutter head through described opening.

As the optimization technique measure, described flexible member is the helical form tension spring.

As the optimization technique measure, described knife rest is provided with positioning convex, and described blade is provided with groove or hole, and described positioning convex is stuck in described groove or the hole described blade is positioned on the described knife rest.

As the optimization technique measure, described cutter head comprises a body and a cover plate, and described knife rest is placed on the described body, and described blade is limited between described cover plate and the knife rest.Further, described cover plate is rotatably connected on described body through a bearing pin, on described body, is provided with described cover plate is locked at the locking structure on the body.Then, described locking structure can be established a dead bolt for being located at the mobilizable buckle on the said body on the described buckle, and described cover plate is provided with the lockhole of corresponding described dead bolt.What is more, described dead bolt is provided with the transition face that can contact said cover plate.Effect has the flexible member that it is applied elastic force to said cover plate direction on the described buckle.Described locking structure can also be for being located at the turnover snap close on the said body, and said snap close is clamped together described cover plate and body.

The beneficial effect of the utility model is: through on cutter head, establishing saddle; Blade is contained on the knife rest; And between knife rest and cutter head, be connected the flexible member that knife rest is applied backward elastic force, make that blade is released handle of a knife by knife rest after, in the trend handle of a knife, withdrawing under the elastic force of reseting elasticity spare; Avoid stretching out outside handle of a knife, eliminate safe hidden trouble and blade comes to harm and meets with discarded.And cutter head is collapsible, is convenient to deposit and carry.

Description of drawings

Fig. 1 is the sketch map of a kind of structure folded state of the utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is the sketch map of structure deployed condition shown in Figure 1.

The sketch map that Fig. 5 stretches out blade during for structure deployed condition shown in Figure 4.

Fig. 6 is the sketch map of cutter head shown in Figure 4.

Fig. 7 is the vertical view of Fig. 6.

Fig. 8 is the vertical view of Fig. 7.

Fig. 9 is the left zoomed-in view of Fig. 6.

Figure 10 is that the A-A of Fig. 6 is to cutaway view Amplified image.

Figure 11 is that the B-B of Fig. 6 is to cutaway view.

Figure 12 is that the C-C of Fig. 7 is to cutaway view.

Figure 13 is that the D-D of Figure 12 is to cutaway view Amplified image.

Sketch map when Figure 14 stretches out for the blade of structure shown in Figure 13.

Figure 15 is retracted within the sketch map in the cutter head for the cover plate opening and the blade of cutter head structure shown in Figure 6.

Figure 16 stretches out the sketch map outside cutter head for the cover plate opening and the blade of cutter head structure shown in Figure 6.

Figure 17 is pushed to front end for cover plate opening, the knife rest of cutter head structure shown in Figure 6 and takes off the sketch map of blade.

Label declaration among the figure:

The 01-handle of a knife;

The 02-cutter head, 21-slit, 22-opening, 23-body, 24-cover plate, 25-lockhole;

The 03-blade, the 31-groove;

The 04-pivot;

The 05-knife rest, 51-push button, 52-positioning convex;

The 06-flexible member;

The 07-buckle, 71-dead bolt, 72-transition face;

The 08-flexible member.

The specific embodiment

With embodiment the technical scheme of the utility model is done further explanation below in conjunction with accompanying drawing.

The folding guarded knife of the utility model is shown in Fig. 1-5; It comprises handle of a knife 01, cutter head 02, blade 03; Handle of a knife 01 has accommodating groove; Cutter head 02 is connected on the handle of a knife 01 through pivot 04 and can launches in the accommodating groove or draw in to accommodating groove through rotating around pivot 04, offer the slit 21 (referring to Fig. 7) that fore-and-aft direction extends on the cutter head 02, and the front end of cutter head 02 is established opening 22 (referring to Fig. 9); Establish in the cutter head 02 one can before and after the knife rest 05 (referring to Figure 10,12,14,17) that slides; Between knife rest 05 and cutter head 02, be connected the flexible member 06 (referring to Figure 12,14) that knife rest is applied backward elastic force, knife rest 05 is provided with the push button 51 (referring to Fig. 7) that exposes cutter head 02 from slit 21, and blade 03 corresponding opening 22 is installed on the knife rest 05 and can stretches out and the indentation cutter head through opening 22.After push button 51 promotes knife rest 05 blade is stretched out cutter head (referring to Fig. 5,14,16); In withdrawal (referring to Fig. 1-4,6-12) in the trend cutter head under the elastic force of flexible member 06; Avoid stretching out outside cutter head, eliminate safe hidden trouble and blade comes to harm and meets with discarded.And cutter head is collapsible, is convenient to deposit and carry.

As further improving and replenishing to technique scheme; The utility model also comprises the technical characterictic that following each section is additional; All additional technical features that each section addressed below though Fig. 1-5 had comprised; Be the preferred embodiment of the utility model, but the utility model is not limited to this situation, when implementing the utility model, they is selected for use on the described technical scheme of epimere according to specifically acting on.

At first, flexible member 06 is helical form tension spring (referring to Figure 12,14).

Secondly, referring to Figure 12, knife rest 05 is provided with positioning convex 52, and blade 03 is provided with groove 31 or hole, and positioning convex 51 is stuck in groove 31 or the hole blade is positioned on the knife rest.

The 3rd; Cutter head 02 comprises a body 23 and a cover plate 24 (referring to Fig. 6,12,14-17); Knife rest 05 is placed in (referring to Figure 12,14,17) on the body 23, and blade 03 is limited between cover plate 24 and the knife rest 05 and can side direction does not rock and come off from knife rest.Further; Cover plate 24 is through a bearing pin be rotatably connected on body 23 (referring to Figure 15-17); Cover plate 24 is locked at the locking structure on the body 23 being provided with on the body 23; Therefore, to can cover plate being rotated and opens cover plate from body around bearing pin after the cover plate release, be convenient to install, change blade; Described locking structure can be for being located at the mobilizable buckle 07 (referring to Fig. 6-7,9,11-17) on the body 23; Establish a dead bolt 71 (referring to Figure 12,14) on the buckle 07; Cover plate 24 is provided with the lockhole 25 (referring to Figure 15-17) of corresponding dead bolt 71, and through dead bolt 71 being snapped in the locking that lockhole 25 is realized cover plate, operate clasp 07 makes dead bolt 71 break away from lockhole 25 can remove the locking to cover plate; More very; Dead bolt 71 is provided with the transition face 72 (referring to Figure 13) that can contact cover plate, and smoothly to the cover plate locking, effect has it (as is supported on the spiral spring on the buckle to the flexible member 08 that cover plate 24 directions apply elastic force on the buckle 07 so that can force when closing cover plate 24 dead bolt 71 to be stepped down; Referring to Figure 11,13), can make buckle 07 remain on the lock position through this flexible member 08; Described locking structure can also be for being located at the turnover snap close on the body, and snap close is clamped together cover plate and body.

Claims

1. folding guarded knife; Comprise handle of a knife (01), cutter head (02), blade (03); Described handle of a knife (01) has accommodating groove; Described cutter head (02) is connected through pivot (04) that handle of a knife (01) is gone up and can be through launching in the said accommodating groove around said pivoted or drawing in to said accommodating groove; It is characterized in that: offer the slit (21) that fore-and-aft direction extends on the described cutter head (02); The front end of said cutter head (02) is established opening (22), establish in the described cutter head (02) one can before and after the knife rest (05) that slides, between described knife rest (02) and cutter head (02), be connected the flexible member (06) of described knife rest (05) to after-applied elastic force; Described knife rest (05) is provided with the push button (51) that exposes cutter head (02) from said slit (21), and the corresponding described opening of described blade (03) (22) is installed on the described knife rest (05) and can stretches out and the indentation cutter head through described opening (22).

2. folding guarded knife according to claim 1 is characterized in that: described flexible member (06) is the helical form tension spring.

3. folding guarded knife according to claim 1; It is characterized in that: described knife rest (05) is provided with positioning convex (52); Described blade (03) is provided with groove (31) or hole, and described positioning convex (52) is stuck in described groove (31) or the hole described blade (03) is positioned on the described knife rest (05).

4. according to claim 1 or 3 described folding guarded knifes; It is characterized in that: described cutter head (02) comprises a body (23) and a cover plate (24); Described knife rest (05) is placed on the described body (23), and described blade (03) is limited between described cover plate (24) and the knife rest (05).

5. folding guarded knife according to claim 4 is characterized in that: described cover plate is rotatably connected on described body (23) through a bearing pin, on described body (23), is provided with described cover plate (24) is locked at the locking structure on the body.

6. folding guarded knife according to claim 5; It is characterized in that: described locking structure is for being located at the mobilizable buckle (07) on the said body (23); Establish a dead bolt (71) on the described buckle (07), described cover plate (24) is provided with the lockhole (25) of corresponding described dead bolt (71).

7. folding guarded knife according to claim 6 is characterized in that: described dead bolt (71) is provided with the transition face (72) that can contact said cover plate (24).

8. folding guarded knife according to claim 6 is characterized in that: described buckle (07) effect of going up has the flexible member (08) that it is applied elastic force to said cover plate (24) direction.

9. folding guarded knife according to claim 5 is characterized in that: described locking structure is the turnover snap close that is located on the said body, and said snap close is clamped together described cover plate and body.