CN204850735U - Double -bladed lock core - Google Patents

Abstract

The utility model relates to a double-leaf lock cylinder, one side of the lock body is provided with a large hole for the lock cylinder to be inserted into, and the other side of the lock body is respectively provided with at least two corresponding The large hole of the lock body is connected to the installation hole of the cylinder, and the cylinder mounted on the top of the spring is installed in the installation hole of the cylinder. The lock body is provided with an anti-interruption strip, and the other end of the spring is on the inner wall of the anti-interruption strip. , there are double blades inside the lock cylinder, the upper brake strips are arranged on the double blades, the marbles are respectively pushed against the opposite upper brake strips, and the lower inserts are arranged on the opposite side of the double blades to the installation hole of the cylinders. , the lower insert is installed in the installation groove in the lock cylinder, the two sides of the installation groove are respectively provided with springs, and the two springs are respectively supported on the two ends of the lower insert. The inserting piece is provided with the raised line that matches with the point card slot. The advantages are: high safety, effective prevention of violent opening and effective guarantee that the key can be accurately rotated to the exact end point of unlocking or locking the door when unlocking or locking the door.

Description

Double blade lock cylinder

technical field

The utility model relates to the technical field of locks, in particular to a double-leaf lock core.

Background technique

Locks are very common and common tools in all walks of life, especially in large places, such as hotels, offices, security agencies, homes and other places. In the current traditional double-leaf lock cylinder, one side of the lock body is provided with coaxial and spaced lock body large holes for the lock cylinder to be inserted, and the other side of the lock body is respectively provided with at least two The cylinder installation hole communicated with the corresponding large hole of the lock body, the cylinder installed in the cylinder installation hole is installed by the spring top, the lock body is provided with an anti-interruption strip, and the other end of the spring is equipped with an anti-interruption strip On the inner side wall of the lock cylinder, double blades are arranged in the lock cylinder, and upper brake strips are arranged on the side of the double blades facing the cylinder mounting hole, and the marbles are respectively supported on the corresponding upper brake strips. Usually, when this kind of lock is inserted to rotate the key to unlock or lock the door, the key will be over-rotated. After the unlocking or locking of the door is completed, the key cannot be pulled out smoothly, and the key needs to be screwed to the correct position before being pulled out. The safety is poor, and it is easy to open the door lock violently by using a single upper brake bar.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the purpose of this utility model is to provide a high security device that can effectively prevent violent opening, and at the same time effectively ensure that the key can be accurately rotated to the accurate termination of unlocking or locking the door when unlocking or locking the door. point double blade lock cylinder.

In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions:

A double-leaf lock cylinder, one side of the lock body is provided with coaxial and spaced lock body large holes for the lock cylinder to be inserted into, and the other side of the lock body is respectively provided with at least two Correspondingly, the large hole of the lock head body communicates with the installation hole of the cylinder, and the cylinder mounted on the top of the spring is installed in the installation hole of the cylinder. The lock body is provided with an anti-interruption strip, and the other end of the spring is equipped with an anti-interruption strip. On the inner wall, double blades are arranged inside the lock cylinder, and upper brake strips are arranged on the side facing the spring installation hole on the double blades. The opposite side of the installation hole is provided with a lower insert, which is installed in the installation groove in the lock cylinder, and the two sides of the installation groove are respectively provided with springs, and the two springs are respectively pressed against the two ends of the lower insert, and the lock head There is a card-to-point slot in the large hole of the body, and a convex line matching the card-to-point slot is provided on the lower insert. The locking points of the upper brake bar and the lower insert double strengthen the anti-technical opening and anti-violence opening performance of the lock head.

The utility model is further configured as follows: the cross-sectional shape of the point-to-point clamping groove is V-shaped.

The utility model is further configured as: the section of the convex line of the lower inserting piece is tapered.

The utility model is further configured as: the angle of the apex angle of the conical section of the convex strip is smaller than the angle of the apex angle of the V-shaped groove of the point card groove.

The utility model is further configured as follows: the point-to-point card slot is set in the large hole of the lock head body on the side opposite to the position of the elastic installation hole.

By adopting the above technical scheme, the technical effect achieved by the utility model is: by setting the lower insert on the lock cylinder, the lower insert is driven by the spring to displace along the installation groove, and the lock cylinder can be lowered when the key drives the lock cylinder to rotate. The insert can be inserted into the point card slot, and there will be a slight sound at this time, so that the operator can clearly know that the key has been rotated in place, which can effectively ensure that the key can be accurately rotated to unlock or lock the door when unlocking or locking the door At the same time, the upper brake bar and the lower insert are locked together, which makes the lock highly secure and can effectively prevent violent opening.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the lock head body of the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of the lock cylinder of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of the lower insert of the present invention.

Detailed ways

Referring to Figures 1 to 4, it is a double-leaf lock cylinder disclosed by the utility model. One side of the lock body 10 is provided with coaxial and spaced lock body large holes 12 for the lock cylinder 11 to be inserted. The other side on the lock head body 10 is respectively provided with at least two elastic mounting holes 13 communicating with the corresponding large holes 12 of the locking end body, and a pin 15 topped by a spring 14 is installed in the elastic mounting holes 13. Lock head body 10 is provided with anti-interrupt bar 16, and the other end top of spring 14 is fortified on the inner wall of anti-interrupt bar 16, is provided with double blade 17 in the lock core gall 11, and double blade 17 is facing toward elastic mounting hole 13. One side of the upper brake bar 18 is provided, and the marbles 15 are pushed against the corresponding upper brake bar 18 respectively. The other side of the double blade 17 is provided with a lower insert 20 opposite to the elastic mounting hole 13, and the lower insert The piece 20 is installed in the installation groove 21 in the lock cylinder 11, and the two sides of the installation groove 21 are respectively provided with springs 14, and the two springs 14 are respectively supported on the two ends of the lower insertion piece 20, and the large hole 12 of the lock head body is provided with a The point card slot 19 and the lower insert 20 are provided with a convex strip 22 matching the point card slot 19 . Wherein, the cross-sectional shape of the locking groove 19 is V-shaped, and the cross-sectional shape of the protruding line 22 of the lower insertion piece 20 is tapered. The V-shaped or tapered structure is adopted, so that the lower insert can quickly bounce into the point card slot under the action of the spring, and due to the force of the spring, when the lower insert and the point card slot collide Make a slight sound so that the operator can hear clearly. The angle β of the apex angle of the conical cross-section of the protruding strip 22 is smaller than the angle α of the V-shaped groove apex angle of the point locking groove 19 . The angle β is smaller than the angle α so that when the lock cylinder is rotated again, it can smoothly slide out along one of the side walls of the point card slot, preventing the lower insert from being stuck in the point card slot. Arrival point card groove 19 is located at the side opposite to the position of the elastic mounting hole 13 in the large hole 12 of the lock head body.

The foregoing embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore: all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered by this utility model. within the scope of protection of utility models.

Claims (5)

1. a twayblade lock core, side on tapered end is provided with concentric and the spaced tapered end macropore inserted for lock core courage, lock core shifting block is provided with between two tapered end macropores, lock core shifting block is provided with lock core slide block, opposite side on tapered end is respectively equipped with at least two pellet installing holes communicated with corresponding tapered end macropore, the pellet established by spring top is installed in pellet installing hole, tapered end is covered with and prevents interrupting bar, set up defences and interrupt on the inside wall of bar in the other end top of spring, twayblade is provided with in lock core courage, twayblade is provided with upper braking bar towards the side of pellet installing hole, pellet peaks on corresponding upper braking bar respectively, it is characterized in that: opposite side relative with pellet installing hole on twayblade is provided with lower inserted sheet, lower inserted sheet is installed on the mounting groove in lock core courage, the both sides of mounting groove are respectively equipped with spring, two springs peak at the two ends of lower braking bar respectively, a draw-in groove is provided with in tapered end macropore, lower inserted sheet is provided with and the raised line matched to some draw-in groove.

2. twayblade lock core according to claim 1, is characterized in that: the described cross sectional shape to some draw-in groove is V-arrangement.

3. twayblade lock core according to claim 2, is characterized in that: the cross section of the raised line of described lower inserted sheet is tapered.

4. twayblade lock core according to claim 3, is characterized in that: the angle of the drift angle of the tapered cross-section of described raised line is less than the angle of the described V-shaped groove drift angle to some draw-in groove.

5. the twayblade lock core according to any one of Claims 1 to 4, is characterized in that: be describedly located at side relative with pellet position of mounting hole in tapered end macropore to some draw-in groove.