Patent name: production method of letter code door lock
Technical field:
The utility model relates to a door lock, in particular to a letter code door lock.
The traditional door lock has many kinds of structures, each kind of door lock has its own characteristics, but the common points are usually opened by the key. The disadvantage of using the key to open the door is that once the key is forgotten or lost, the door cannot be opened.
The purpose of the utility model is to provide a letter code door lock which does not need a key to open and is convenient, solid, durable and safe to use.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an alphabetic code door lock, including a lock body, one end of the lock body is provided with an internal lock handle, the other end is provided with an external handle, the internal lock handle is connected with an internal lock shaft, the other end of the internal lock shaft is driven by a lock tongue spline and a lock tongue, which is characterized in that a lock cylinder is arranged along the axial direction in the external lock handle, and the lock cylinder is composed of a lock column and a lock The column base is composed of a circular lock plate which can rotate on the lock column. The lock column base is installed on the lock body. The circular lock plate is provided with a lock hole and a long circular pseudo lock hole. One side of the lock plate is provided with a paddle block, the other side is provided with a paddle which is perpendicular to the face, the other side of the lock plate is extended with a lug, and the outer handle is provided with a lock matching the lock hole of the lock plate A spring chamber and a recovery spring are arranged in the near end of the outer lock handle. An outer lock shaft runs through the lock column, spring chamber and spring, and is connected to the outer lock handle. Twenty six English letters are engraved on the side of the outer lock handle. A positioning groove is milled on the side of the lock column. A positioning ball matching the positioning groove is arranged on the inner edge of the circular lock plate.
The positive effect of the utility model is that the traditional key is abandoned to unlock the lock, and the utility model is firm, durable and convenient to use
It is not easy to decipher and has good security.
The utility model is described in detail below in combination with the attached drawings and the embodiment.
Fig. 1 is the structural diagram of a better embodiment of the utility model; FIG. 2 is the structural decomposition diagram of a better embodiment of the utility model; FIG. 3 is the A-A sectional diagram of the lock column in Fig. 2; FIG. 4, FIG. 5 and Fig. 6 are the structural diagram of a better embodiment of the utility model.
see also
As shown in Fig. 1 to Fig. 6, one end of the lock body 1 of the utility model is provided with an internal lock handle 10, the other end is provided with an external handle 20, the internal lock handle is connected with an internal lock shaft 11 by thread, and the other end of the internal lock shaft is provided with a flower key (not shown in the figure
It is driven with a locking tab 30. The inner part of the outer lock handle 20 is provided with a lock cylinder 40 along the axial direction. The lock cylinder is composed of a lock column 41, a lock column base 45 for installing the lock column and a circular lock plate 42, 43 and 44 which can be turned on the lock column. The lock column base is installed on the lock body 1, the circular lock piece is provided with a lock hole 2 and a pseudo lock hole 21, the pseudo lock hole is designed as a long and thin circular hole, so as not to let the lock nail pass through, one side of the lock piece 44 is provided with a dial block 441, the opposite edge of the other side is provided with a dial 442 which is perpendicular to the surface, and the other two sides of the lock piece 42 and 43 extend a lug 421 and 431. The outside handle is provided with a lock pin 22 matched with the lock hole 2 of the lock plate, and the lock pin head is processed into a convex shape, so that the nail hole can not be found when using the hand sense to break, and the anti breaking effect is achieved. The near end of the outer lock handle is provided with a spring chamber 23 and a recovery spring 24. An outer lock shaft 25 runs through the lock post, spring chamber and spring, and is connected to the outer lock handle by screw thread. Twenty six English letters are engraved on the side 26 of the outer lock handle, which are arranged in two lines. The side of the lock post is milled with a positioning slot 411 corresponding to the English letters engraved on the side of the outer lock handle. A cavity is arranged near the inner edge of the circular lock pieces 42, 43 and 44. The cavity is provided with a spring and the bullet Tighten the outer end of the spring to a certain bead 412.
When the utility model is used for opening a door indoors, as long as the inner lock handle is rotated, the lock tongue can be directly extended or retracted to achieve the purpose of opening a door. When opening the door outdoors, according to the given three letter code, turn the outer lock handle, make the lock holes of the three locks in line with the lock nail through the lock nail and the paddle, paddle and lug on the lock plate, and then press the outer lock handle, which overcomes the spring force and drives the outer lock shaft to insert the lock tongue spline. At this time, turn the outer lock handle to open the door. When the outer lock handle is loosened, under the action of spring, the outer lock handle pops out to separate the outer lock shaft from the lock tongue, and turn the outer lock handle to make the lock hole of the three locking plates misplaced. If the door is opened again, it is necessary to press the letter code again and turn the outer lock handle to open the door. The lock body of the utility model is provided with a safety buckle of the lock tongue (not shown in the figure), so as to achieve the purpose of locking the lock tongue.
A letter code door lock according to claim 1, including a lock body, one end of the lock body is provided with an inner lock handle, the other end is provided with an outer handle, the inner lock handle is connected with an inner lock shaft, the other end of the inner lock shaft is driven with a lock tongue through a lock tongue spline, which is characterized in that the inner side of the outer lock handle (20) is provided with a lock cylinder (40) along the axial direction, and the lock cylinder is rotatable by the lock column (41), the lock column base (45) and a suit on the lock column The circular lock piece is provided with a lock hole (2) and a long circular pseudo lock hole (21). One side of the lock piece (44) is provided with a paddle (441), the other side is provided with a paddle (442) which is perpendicular to the face, the other side of the lock piece (42, 43) is extended with a lug (421, 431), and the outside handle is provided with a lock piece The near end of the outer lock handle is provided with a spring chamber (23) and a recovery spring (24). The outer lock shaft (25) runs through the lock column, spring chamber and spring, and is connected to the outer lock handle. The side of the outer lock handle (26) is engraved with 26 English letters, and the side of the lock column is engraved with 26 English letters
