CN201239952Y - Knife with locking apparatus - Google Patents

Abstract

The utility model relates to a knife with a locking device, which includes a knife handle, a substantially elliptical knob with a center hole, a blade accommodated in the knife handle, a blade seat accommodated in the knife handle, and a bolt with a hole, wherein, the knife handle comprises a left half part and a right half part which are buckled together; a through groove is formed on the left half part; a step is arranged on the circumference of the through hole; the blade is provided with an edge and at least one mounting notch which is formed on the opposite side of the edge; the blade seat is provided with a base plate, two side edges, a central armature spring, at least one erection column, as well as a top bulge and a side bulge arranged at a free end of the armature spring; the bolt passes through the center hole of the knob; and the top bugle is inserted into the hole formed on the bolt. The knife blade can be reliably and firmly locked relative to knife handle, and the blade replacement manner is simple.

Description

A kind of pocket knife of deciding device with lock

Technical field

The utility model relates to a kind of pocket knife that has locking device, and relating in particular to a kind of blade can secure lock and change pocket knife simple to operate.

Background technology

Because but the blade of pocket knife is when cutting object in the retractable handle of a knife, so develop the pocket knife that much to have the blade lock function.This class pocket knife of the prior art realizes that the blade locking generally is by the frictional force between blade and the locking device.But, this locking device and unreliable, if because the power that acts on the blade when cutting is very big, but blade is still in the retractable handle of a knife.

Summary of the invention

Technical problem to be solved in the utility model provides the pocket knife that a kind of blade can secure lock.

Another technical problem to be solved in the utility model provides the pocket knife that a kind of blade is changed easily.

In order to solve as above technical problem, the utility model provides a kind of pocket knife that has locking device, and it comprises a handle of a knife, and handle of a knife is made of a left side and a right-hand part of snapping together, offer a groove on the left side, be provided with a step around the groove; Basically the knob of ovalize, knob has a medium pore; A blade that is contained in the handle of a knife, blade have a blade and one and are opened in the blade relative edge and go up the installation recess of at least one; A blade bearing that is contained in the handle of a knife, blade bearing have a chassis, two sides, central authorities spring-latch, at least one erection column and be arranged at a rostellum and a pleurapophysis on the spring-latch free end; And a latch, latch passes the medium pore of knob and has a hole, and rostellum inserts in the hole of being offered on the latch.

The beneficial effect that the utility model brought is locking with respect to handle of a knife that blade can be reliably firm, and the mode of blade exchange is very simple in addition.

Description of drawings

Fig. 1 is the stereogram of the utility model pocket knife preferred embodiment.

Fig. 2 is the three-dimensional explosive view of the utility model pocket knife shown in Figure 1.And,

Fig. 3 is the schematic diagram of the utility model pocket knife handle of a knife shown in Figure 1 left side.

The specific embodiment

With reference to figure 1, it shows a kind of preferred embodiment that has the pocket knife of locking device of the utility model.Pocket knife has a handle of a knife 10, and handle of a knife 10 is made of a left side 11 and a right-hand part of snapping together.Offering 110, one knobs 20 of a groove on left side 11 can slide along groove 110.Knob 20 is ovalize substantially.Include a blade 30 in the handle of a knife 10, blade 30 can slide along handle of a knife 10.Around groove 110, be provided with a step 111.

As shown in Figure 2, in handle of a knife 10, include a blade bearing 40.Blade bearing 40 is rectangle, and has the spring-latch 43 and the erection column of at least one 44 of a chassis 41, two sides 42, central authorities.On limit relative on the blade 30, offer at least one recess 31 is installed with blade 32.Blade 30 is placed in the blade bearing 40 and is clipped in chassis 41 and spring-latch 43 centres when mounted, and erection column 44 embeds among the installation recesses 31.On the free end of spring-latch 43, be formed with a rostellum 45 and a pleurapophysis 46.Handle 20 has a medium pore 21, and medium pore 21 can pass through for a latch 22.When inserting rostellum 45 in the hole of offering on the latch 22, handle 20 just has been fixed on the blade bearing 40 by latch 22.Between handle 20 and left side 11, a packing ring 23 can also be set.Can be installed together by one or more screws between left side 11 and the right-hand part 12.

With reference to figure 3, it is the schematic diagram of pocket knife illustrated in figures 1 and 2 left side 11.Side along groove 110 is provided with a side 112, offers a plurality of equidistant locking recess 113 on the side 112.

In use, the user can 20 to positions that are parallel to groove 110 as shown in Figure 1 of turning knob.The user can promote the direction slip of knob 20 along handle of a knife 10 then.When the user need be with blade 30 with respect to handle of a knife 10 locking the time, and though be extrapolated or inwardly pack up blade 30 in, the user can rotate knob 20 about 90 degree, and is vertical with groove 110 basically up to the major axis of knob 20.Knob 20 touches step 111 and is moved along the direction away from left side 11 by step 111 picking-ups at this moment.Being fixed to pleurapophysis 46 on the knob 20 by latch 22 will enter among the locking recess 113.Blade bearing 40 can't move with respect to handle of a knife 10, thereby be installed in blade 30 on the blade bearing 40 also with regard to locked position.If the user turns to parallel position once more with knob 20, spring-latch 43 is to swivel motion and drive knob 20 and return.Pleurapophysis 46 leaves locking recess 113, and this moment, blade bearing 40 can slide with respect to handle of a knife 10 once more.

When needs were changed blade 30, the user can be pushed into knob 20 position foremost, and this moment, blade 30 can break away from from erection column 44.A new blade 30 just can snap onto on the erection column 44.

Known to those skilled in the art, drawings and Examples of the present utility model are only for illustrating that function of the present utility model, structure and principle should not become the restriction in the utility model understanding; Simultaneously, the purpose of this utility model all realizes.The foregoing description may be had some change under the situation that does not break away from the utility model principle, so protection of the present utility model should be as the criterion with the scope described in claims.

Claims (3)

1. pocket knife that has locking device is characterized in that comprising:

A handle of a knife (10), handle of a knife (10) is made of a left side (11) that snaps together and a right-hand part, offers a groove (110) on left side (11), and groove (110) is provided with a step (111) on every side;

Basically the knob of ovalize (20), knob (20) has a medium pore (21);

A blade (30) that is contained in the handle of a knife (10), blade (30) have a blade (32) and one and are opened in last at least one the installation recess (31) of blade (32) relative edge;

A blade bearing (40) that is contained in the handle of a knife (10), blade bearing (40) have a chassis (41), two sides (42), central authorities spring-latch (43), at least one erection column (44) and be arranged at a rostellum (45) and a pleurapophysis (46) on spring-latch (43) free end; And,

A latch (22), latch (22) pass the medium pore (21) of knob (20) and have a hole, and rostellum (45) inserts in the hole of being offered on the latch (22).

2. a kind of pocket knife that has locking device as claimed in claim 1 is characterized in that being provided with a packing ring (23) between handle (20) and left side (11).

3. a kind of pocket knife that has locking device as claimed in claim 1 is characterized in that being installed together by at least one screw between left side (11) and the right-hand part (12).

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