CN201627420U - Shaped key and locking cam - Google Patents

Abstract

The utility model discloses a shaped key and a locking cam. The shaped key comprises a main body and a tail part. The main body comprises a first surface, a second surface, a first lateral surface and a second lateral surface. The main body is provided with key teeth distributed along the length direction of the main body. The locking cam comprises a shell, a lock body, a lock core provided with a key hole and cylinder assemblies matched with the key teeth on the main body of the shaped key. The cross section of the main body of the shaped key is of a wave shape. The cross section consists of three arc wave sections. The first lateral surface of the main body is provided with a first key tooth. The position on the second surface of the main body close to the arc top of the first key tooth is provided with a second key tooth. The cross section of the key hole on the lock core is of a shape matched with that of the cross section of the main body of the shaped key. Two lines of cylinder assemblies are provided. The shaped key and the locking cam have the advantages of high, matching degree, low mutual opening rate and good burglary prevention performance.

Description

Special-section key and tapered end

Technical field:

The utility model relates to field of lockset, the special-purpose tapered end that relates in particular to a kind of special-section key and match with it.

Background technology:

At present, the lockset on the market of a great variety, structure is different, and what wherein use in people's life is cylinder lock the most widely.The tapered end of cylinder lock of the prior art mostly is made up of lock body, lock core and pellet shot from a slingshot assembly, and lock core is provided with keyhole.Its operating principle is, when inserting with the corresponding key of this tapered end, the key flank of tooth and each pellet shot from a slingshot are corresponding one by one, makes the height of each pellet shot from a slingshot all be in the contact surface place of lock body and lock core, and rotational lock core can be unblanked again.Mostly be plate shaped, cross and semilune etc. greatly with regard to the profile of the main body of the key of common cylinder lock, defective such as easy imitation, quality of fit are low, mutual opening rate height that it in use exists.And this tapered end is difficult to the person of avoiding theft and utilizes corresponding instrument such as Unlocking gun, steel disc, screwdriver etc. to insert keyhole, stirs even destroy the pellet shot from a slingshot in the lock core, will lock unlatching by force, and its theftproof performance is relatively poor.And the lock core of cylinder lock of the prior art and key generally adopt machine tooling, and its workload is big, and production efficiency is low.

The utility model content:

The technical problems to be solved in the utility model is, a kind of fitness height, mutual opening rate is low, theftproof performance is good special-section key and tapered end are provided.

For solving above-mentioned technical problem, special-section key described in the utility model and tapered end, described special-section key comprises main body and afterbody, and described main body comprises first surface, second surface, first side and second side, and described main body is provided with the key bit that distributes along the principal length direction; Described tapered end comprises shell, lock body, be provided with the lock core of keyhole and the pellet shot from a slingshot assembly that is complementary with key bit on the main body of special-section key, the cross section of the main body of described special-section key is a waveform, this cross section is made up of three arc wave bands, and first side of described main body is provided with first key bit, and the arc top near first key bit on the second surface of described main body is provided with second key bit; The shape that the cross section of keyhole is complementary for the shape with the body cross-section of above-mentioned special-section key on the described lock core; Described pellet shot from a slingshot assembly is two row.

After adopting said structure, the utlity model has following advantage:

The cross section of the main body of special-section key is set to waveform, this corrugated cross section is made up of three arc wave bands, and in first side of main body, second surface is respectively equipped with first key bit, second key bit, because being the asymmetric distribution of irregular structure and key bit, the overall profile of main body make this special-section key be difficult to copy, and the shape that the cross section of keyhole also just is complementary for the shape with the body cross-section of above-mentioned special-section key on the lock core, this just makes this special-section key and keyhole have very high fitness, and the person that can effectively not avoid theft utilizes the tool technique unlatching, its theftproof performance height, easy to use.Pellet shot from a slingshot assembly in the tapered end has two row, and arranging rationally of pellet shot from a slingshot also makes special-section key have bigger size of key, and like this, the theftproof performance of tapered end increases substantially, and the mutual opening rate of special-section key reduces significantly.Special-section key of the present utility model in addition and lock core adopt the processing method of mould molding (i.e. cast), and be easy to process, and guaranteed the required precision of structure.

As improvement, at the bottom of two arcs on the first surface of described special-section key main body with second surface on arc at the bottom of on same straight line.Like this, can guarantee that the main body of special-section key has reliable intensity, and make straight thin slice can not insert in the keyhole, the theftproof performance of tapered end is better.

Improve as another kind, described every row pellet shot from a slingshot assembly is made up of seven groups of pellet shot from a slingshot groups, and described every group of pellet shot from a slingshot group is made up of a spring, a locking pellet shot from a slingshot and a movable pellet shot from a slingshot respectively.Because every row pellet shot from a slingshot assembly is made up of seven groups of pellet shot from a slingshot groups, can guarantee that special-section key has enough size of keys, the mutual opening rate of special-section key is lower.

Description of drawings:

Fig. 1 is the upward view of special-section key of the present utility model (main body is following);

Fig. 2 is the structural representation of special-section key of the present utility model;

Fig. 3 is the structural representation of tapered end of the present utility model;

Shown in the figure 1, main body; 1.1, first surface; 1.1.2, at the bottom of first arc; 1.1.3, at the bottom of second arc; 1.2, second surface; 1.2.1, second key bit; 1.2.2, at the bottom of the 3rd arc; 1.3, first side; 1.3.1, first key bit; 1.4, second side; 2, afterbody; 3, shell; 4, lock body; 5, lock core; 5.1, keyhole; 6, pellet shot from a slingshot assembly; 6.1, spring; 6.2, the locking pellet shot from a slingshot; 6.3, movable pellet shot from a slingshot; 7, drive link; 8, jump ring; 9, guide peg.

The specific embodiment:

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

As shown in Figure 1 and Figure 2, special-section key of the present utility model and tapered end, described special-section key comprises main body 1 and afterbody 2, described main body 1 comprises first surface 1.1, second surface 1.2, first side 1.3, second side 1.4, and described main body 1 is provided with the key bit that distributes along main body 1 length direction.

The cross section of the main body 1 of described special-section key is a waveform, this cross section is made up of three arc wave bands, clearly, can obtain by Fig. 1, have on the first surface 1.1 at the bottom of arc top and two arcs, and accordingly, have on the second surface 2.1 at the bottom of two arcs top and the arc, as the part of the main body 1 of special-section key, first side 1.3 of described main body 1 is provided with the first key bit 1.3.1, and the arc top near the first key bit 1.3.1 on the second surface 1.2 of described main body 1 is provided with the second key bit 1.2.1.

Still referring to Fig. 1, (i.e. 1.2.2 at the bottom of the 3rd arc) is on same straight line at the bottom of the arc at the bottom of two arcs on the first surface 1.1 of the main body 1 of described special-section key on (promptly at the bottom of first arc at the bottom of the 1.1.2 and second arc 1.1.3) and the second surface 1.2.

As shown in Figure 3, the tapered end that the utility model and above-mentioned special-section key are complementary comprises shell 3, lock body 4, is provided with the lock core 5 of keyhole 5.1 and the pellet shot from a slingshot assembly 6 that is complementary with key bit on the main body 1 of special-section key.According to prior art as can be known, also have a drive link 7 to be connected with lock core 5, this drive link 7 is fixed on the end of lock core 5 by jump ring 8.

Still referring to accompanying drawing 3, the shape that the cross section of keyhole 5.1 is complementary for the shape with main body 1 cross section of above-mentioned special-section key on the described lock core 5; Described pellet shot from a slingshot assembly 6 is two row, and obviously, described two row pellet shot from a slingshot assemblies 6 are corresponding one by one respectively at the first key bit 1.3.1 on the special-section key main body 1, the second key bit 1.2.1.Concrete, described every row pellet shot from a slingshot assembly 6 is made up of seven groups of pellet shot from a slingshot groups, and described every group of pellet shot from a slingshot group locks pellet shot from a slingshot 6.2 by a spring 6.1, one respectively and a movable pellet shot from a slingshot 6.3 is formed.Like this, have in the tapered end and form two row pellet shot from a slingshot assemblies 6 by 14 pellet shot from a slingshot groups, according to prior art as can be known, the teeth of each key bit on the above-mentioned special-section key main body 1 also just are respectively 7.As routine techniques, in lock body 3, also be provided with guide peg 10, the sidewall of lock core 4 is provided with the gathering sill (not shown), matches with gathering sill by guide peg 10 and controls lock core 4 rotational angles, makes lock core 4 avoid unnecessary rotating distance.

The user mode of the utility model special-section key and tapered end is referring to accompanying drawing 3, and its open theory is same as the prior art.During use, the utility model special-section key is matched with keyhole 5.1 on the tapered end, each key bit matches respectively at the movable pellet shot from a slingshot 6.3 in the corresponding pellet shot from a slingshot assembly 6, to lock pellet shot from a slingshot 6.2 and eject lock core 5, lock core 5 loses lock-out state, rotate special-section key and drive lock core 5 rotations, driving the dead bolt (not shown)s by the drive link 7 that is connected with lock core 5 can open lock.

Claims (3)

1. special-section key and tapered end, described special-section key comprises main body (1) and afterbody (2), described main body (1) comprises first surface (1.1), second surface (1.2), first side (1.3) and second side (1.4), and described main body (1) is provided with the key bit that distributes along main body (1) length direction; Described tapered end comprises shell (3), lock body (4), be provided with the lock core (5) of keyhole (5.1) and the pellet shot from a slingshot assembly (6) that is complementary with key bit on the main body (1) of special-section key, it is characterized in that: the cross section of the main body of described special-section key (1) is a waveform, this cross section is made up of three arc wave bands, and first side (1.3) of described main body (1) is provided with first key bit (1.3.1), and the arc top that the second surface (1.2) of described main body (1) is gone up near first key bit (1.3.1) is provided with second key bit (1.2.1); The shape that the cross section that described lock core (5) is gone up keyhole (5.1) is complementary for the shape with main body (1) cross section of above-mentioned special-section key; Described pellet shot from a slingshot assembly (6) is two row.

2. special-section key according to claim 1 and tapered end is characterized in that: at the bottom of two arcs on the first surface (1.1) of the main body of described special-section key (1) with second surface (1.2) on arc at the bottom of on same straight line.

3. special-section key according to claim 1 and tapered end, it is characterized in that: described every row pellet shot from a slingshot assembly (6) is made up of seven groups of pellet shot from a slingshot groups, and described every group of pellet shot from a slingshot group is made up of a spring (6.1), locking pellet shot from a slingshot (6.2) and a movable pellet shot from a slingshot (6.3) respectively.

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