CN2398380Y

CN2398380Y - Dustproof, moistureproof lock

Info

Publication number: CN2398380Y
Application number: CN 99257107
Authority: CN
Inventors: 彭胜中
Original assignee: Meiketai Lock Industry Co ltd Ningbo
Current assignee: Meiketai Lock Industry Co ltd Ningbo
Priority date: 1999-12-03
Filing date: 1999-12-03
Publication date: 2000-09-27
Anticipated expiration: 2009-12-03

Abstract

The utility model relates to a dustproof and moistureproof lock, which is used for preventing dust, sands, moisture, water from entering in the lock and keeping the precision of the lock, so that a key can be smoothly inserted in a lock or pulled out from the lock, and the lock is limberly used. The utility model can be used for being used as the locks for various door locks, various lock with different trough shapes, and switch locks for motorcycles and cars. The utility model is formed from a lock core, a lock sleeve and a clamping ring which are integrally connected, wherein, the lock core is provided with springs and beads. The lock core is also connected with dustproof sheets which are provided with the springs. In unlocking time, a key tip primarily touches a circular arc-shaped groove on the two dustproof sheets, so that the two dustproof sheets respectively rotate towards both sides of the utility model along with a central point on each of the dustproof sheets; then, lockholes under the two dustproof sheets are exposed, and the key is rotated to open the lock. After the key is pulled out, the dustproof sheets are reset under the action of the springs, and the lockholes are shut out.

Description

Dustproof, moistureproof tapered end

The utility model relates to a kind of critical piece tapered end of lock, particularly a kind ofly is used to prevent that dirt, sand and moisture, water droplet from entering in the lock, make key plug and unplug use smoothly, flexibly, not stuck dustproof, moistureproof tapered end.The tapered end that can be used as the switch lock on the tapered end of the various different flute profiles in all kinds of door locks and motorcycle, the automobile etc. uses.

Existing commercially available, as to use lock tapered end does not all have dustproof, moistureproof function, and the time, dirt sand, moisture all were easy to groove and the place, the hole of bead in lockhole enters tapered end with after long, influenced the operate as normal of spring, pearl, and therefore lock just is difficult to open.Especially door lock, if owner goes out the time long, moisture enters or naughty child will draw rubbish to fill in the lockhole, so all makes to lock not open, and has a strong impact on people's normal life, also is a kind of very stubborn problem.

The purpose of this utility model is to provide a kind of dustproof, moistureproof tapered end, can make key plug and unplug smoothly, flexible, can prolong application life of tapered end again.

The utility model is achieved in that dustproof, moistureproof tapered end, by spring be installed, go up pearl, the lock core of pearl links into an integrated entity with lock tube, collar and forms down, and also is connected with the dustproof sheet of being with spring on the described lock core.

Fig. 1. structural representation of the present utility model

Fig. 2. the left view of Fig. 1

Fig. 3. the A-A view of Fig. 1

Fig. 4. the dustproof sheet part drawing

Fig. 5. structural representation of the present utility model (dustproof sheet is used for peace and is tapered end)

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Whole tapered end by spring (7), go up pearl (5), pearl (6), collar (8), lock core (3) or (16), lock tube (4) or (14) and turn-button (15) are formed the same with prior art down.

There is the  shape of the hole of bead and cannelure lock core (3), (16) for there is keyhole the centre on the peripheral wall, have the arc notch that matches with two dustproof sheets (2), (9) shape at end face with junction, the face of cylinder, back.

One edge of two dustproof sheets (2), (9) is the circular arc that cooperates with lock core (3), and an inclined open (10) is arranged on the centre position, and another edge is a vertical edges, and the groove (11) of the circular arc that cooperates with key bit is arranged on the edge of the first half.

Different because of the flute profile of all kinds of tapered ends, so the flute profile of lock core is different, but two dustproof sheets (2) that are mated, (9) shape are symmetrical substantially, and the central point of groove (11) and opening (10) is on same straight line.

The breach of the lock core (3) that has assembled is put in two dustproof sheets (2), (9), again spring (12) is put into opening (10) respectively, lock tube on the overcoat (4) and collar (8) then tapered end assemble.

Tapered end is installed in the lock frame, and whole door lock just installs and can use.

During use, key is inserted in the fore shaft (1) of lock core (3), at this moment key head is at first run into is groove (11) on dustproof sheet (2), (9), and dustproof sheet (2), (9) are rotated to both sides along the central point on it, expose following lockhole, but key turns is with regard to the smooth opening lock, again key is extracted, two dustproof sheets (2), (9) return to the origin-location again under spring (12) power effect, cover in lockhole.

Figure 5 shows that dustproof sheet is used for peace and is tapered end, one end is turn-button (15), and an end inserts key (13) in the lock core (16), and dustproof sheet (2), (9) are rotated to both sides along the central point on it, expose following lockhole, but key turns is with regard to the smooth opening lock.

The utility model is compared with prior art: because having opened a breach at the lock core, increases and put two dustproof sheets, Hide lockhole, thus dust, moisture, water all be difficult for entering in the lockhole, spring, pearl just not easy to wear, Corrosion has kept the precision of original tapered end, and it is rotated flexibly, and therefore plug and unplug smoothly, easily unblank, Can prolong again simultaneously its service life.

Claims

1. dustproof, moistureproof tapered end are linked into an integrated entity and are formed by lock core and lock tube, collar (8) that spring (7), last pearl (5), following pearl (6) are installed, it is characterized in that also being connected with on the described lock core dustproof sheet of band spring (12).

2. tapered end according to claim 1, it is characterized in that there is keyhole lock core (3), (16) for the centre, the  shape that the hole of bead and cannelure are arranged on the peripheral wall has the arc notch that matches with two dustproof sheets (2), dustproof sheet (9) shape at end face with junction, the face of cylinder, back.

3. tapered end according to claim 1, the circular arc of an edge that it is characterized in that dustproof sheet (2), dustproof sheet (9) for cooperating with lock core (3), (16), and an inclined open (10) arranged on the centre position, another edge is a vertical edges, and the groove (11) of the circular arc that cooperates with key bit is arranged on the edge of the first half; The central point of groove (11) and opening (10) is on same straight line.

4. tapered end according to claim 1 is characterized in that dustproof sheet (2), dustproof sheet (9) put into the arc notch on lock core (3), (16) respectively, spring (12) is put into the opening (10) on dustproof sheet (2), the dustproof sheet (9) respectively again.