CN219034346U - Clutch type door handle lock cylinder - Google Patents

Abstract

The utility model provides a clutch type door handle lock cylinder which comprises a key core and an outer sleeve sleeved on the outer side of the key core, wherein the outer sleeve is arranged on a door handle, one end of the key core is provided with a key hole, the other end of the key core is provided with a chute, a movable part is connected in the chute, a protruding shaft is arranged on the movable part, a transmission chute is arranged on the key core, a linear chute is arranged on the inner wall of the outer sleeve, and the protruding shaft on the movable part penetrates through the transmission chute and stretches into the linear chute; one end of the key core, which is far away from the key hole, is connected with a rotatable rotating block corresponding to the movable piece, and the rotating block is connected with one end of the square rod; the movable piece is provided with a butt joint at one end close to the rotary block, and the rotary block is provided with a butt joint groove corresponding to the butt joint. According to the utility model, under the condition that a key is not inserted to unlock, the square bar is disconnected from the lock core, so that even if the key core is pried or rotated by a special device, the square bar cannot rotate, and the safety of the door lock is greatly improved.

Description

Clutch type door handle lock cylinder

Technical Field

The utility model relates to the technical field of door locks, in particular to a clutch type door handle lock cylinder.

Background

The traditional lock core on the door handle mainly comprises a key core, a square rod and other parts, wherein the square rod is connected with the key core, the square rod is connected with the lock tongue through a transmission mechanism, the key core is arranged on the door handle, and a key hole is formed in the key core; when unlocking, the key is correctly inserted into the key hole on the key core, then the key is turned, the key drives the key core and the square rod to rotate, and the square rod drives the lock tongue to act through the transmission mechanism, so that the door lock is opened.

In the traditional lock core structure, as the square rod is always connected with the key core, the integral structure has the following problems: the safety and the anti-theft performance are poor, under the condition that no key exists, an illegal person can easily pry the key core through a special tool, so that the key core rotates, and a square rod connected with the key core rotates, thus the door lock is opened with a larger probability, and a multiplicable machine is provided for the burglary of the illegal person.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a clutch type door handle lock cylinder.

The utility model aims at realizing the following technical scheme: the clutch type door handle lock core comprises a key core and an outer sleeve sleeved outside the key core, wherein the outer sleeve is arranged on a door handle, one end of the key core is provided with a key hole, the other end of the key core is provided with a chute, a movable piece is connected in the chute, a protruding shaft is arranged on the movable piece, a transmission chute is arranged on the key core, a linear chute is arranged on the inner wall of the outer sleeve, and the protruding shaft on the movable piece penetrates through the transmission chute and stretches into the linear chute; one end of the key core, which is far away from the key hole, is connected with a rotatable rotating block corresponding to the movable piece, and the rotating block is connected with one end of the square rod; the movable piece is provided with a butt joint at one end close to the rotary block, and the rotary block is provided with a butt joint groove corresponding to the butt joint.

Preferably, the cross sections of the butt joint and the butt joint groove are rectangular.

Preferably, the linear chute is arranged along the axial direction of the outer sleeve.

Preferably, one end of the key core, which is far away from the key hole, is connected with a rotary block sleeve, and the rotary block is connected in the rotary block sleeve.

Preferably, the screw block sleeve is in threaded connection with the key core.

Preferably, a limiting end is arranged at one end of the key core, which is close to the key hole; the outer sleeve is sleeved on the outer side of the key core and is positioned between the limiting end and the rotary block sleeve.

Preferably, the rotating block is provided with a square rod connecting groove, and one end of the square rod is connected in the square rod connecting groove.

Preferably, a side square is arranged on one side of the outer sleeve.

The beneficial effects of the utility model are as follows: according to the utility model, under the condition that a key is not inserted to unlock, the square bar and the lock core are disconnected, so that even if the key core is pried or rotated by a special device, torque is not transmitted to the square bar, and the square bar is not rotated, thereby greatly improving the safety of the door lock, greatly improving the difficulty of unlocking the door lock under the condition of no key, and further reducing the risk of theft of lawbreakers in the room. The key hole is arranged on the door handle, so that the key hole on the conventional door plate does not exist, and the door plate is simpler and the safety is improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of one direction of the door handle.

Fig. 3 is a schematic view of the structure of the door handle in another direction.

Fig. 4 is a schematic structural view of a door handle lock cylinder.

Fig. 5 is a schematic view of the door handle lock cylinder with the outer sleeve removed.

Fig. 6 is a schematic view of the door handle lock cylinder with the outer sleeve, the knob and the square rod removed.

Fig. 7 is a schematic view of the structure of the outer sleeve.

Fig. 8 is a schematic structural view of the movable member.

Fig. 9 is a schematic structural view of a key core.

Fig. 10 is a cross-sectional view of a door handle lock cylinder.

FIG. 11 is a schematic view of the structure of one of the directions of the spin block.

Fig. 12 is a schematic view of another direction of the spin block.

In the figure: 1. the door comprises a door body, 2, a mounting flange, 3, a door handle, 4, a key, 5, a square rod, 6, a key core, 7, an outer sleeve, 8, a rotary block sleeve, 9, a movable piece, 10, a convex shaft, 11, a side square block, 12, a linear sliding groove, 13, a butt joint, 15, a transmission chute, 16, a key hole, 17, a limiting end, 18, external threads, 20, a rotary block, 21, a sliding groove, 22, a butt joint groove, 23 and a square rod connecting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1 to 12, a clutch-type door handle lock cylinder comprises a key core 6, an outer sleeve 7 sleeved outside the key core 6, and the outer sleeve 7 is fixedly arranged on a door handle 3. The door handle 3 is installed on the door body 1 through the installation flange 2, the installation flange 2 is fixed on the door head 1 through screws, and the door handle 3 is rotatably connected with the installation flange 2. One side of the outer sleeve 7 is provided with a side block 11. When the door handle 3 is turned, the door handle 3 drives the outer sleeve 7 to rotate at the same time; the side blocks 11 on the side of the outer sleeve 7 act to transmit torque.

The key core 6 is cylindrical in shape, one end of the key core 6 is provided with a key hole 16, and the other end of the key core 6 is provided with a chute 21. The sliding chute 21 is connected with a movable piece 9, and the movable piece 9 can slide in the sliding chute 21. The movable piece 9 is provided with a convex shaft 10, the key core 6 is provided with a transmission chute 15, the inner wall of the outer sleeve 7 is provided with a linear chute 12, and the linear chute 12 is arranged along the axial direction of the outer sleeve 7; the protruding shaft 10 on the movable part 9 passes through the transmission chute 15 and protrudes into the linear chute 12.

One end of the key core 6 far away from the key hole 16 is connected with a rotatable rotary block 20 corresponding to the movable piece 9, and the rotary block 20 is connected with one end of the square rod 5. Wherein, the key core 6 is kept away from key hole 16 one end and is connected with the rotary block sleeve 8, threaded connection between rotary block sleeve 8 and the key core 6 is equipped with the external screw thread 18 that is used for connecting rotary block sleeve 8 on the key core 6. The knob 20 is connected in the knob sleeve 8 and is rotatable in the knob sleeve 8. The rotating block 20 is provided with a square rod connecting groove 23, and one end of the square rod 5 is connected in the square rod connecting groove 23. The square rod 5 is connected with the lock tongue through a transmission mechanism, and the lock tongue is driven to act through the rotation of the square rod 5.

The movable piece 9 is provided with a butt joint 13 at one end close to the rotary block 20, and the rotary block 20 is provided with a butt joint groove 22 corresponding to the butt joint 13. The cross sections of the abutment 13 and the abutment groove 22 are rectangular.

A limiting end 17 is arranged at one end of the key core 6 close to the key hole 16; the outer sleeve 7 is sleeved outside the key core 6 and is positioned between the limiting end 17 and the rotary block sleeve 8.

In the utility model, under normal conditions, the butt joint on the movable piece is separated from the rotary block, namely, the square rod is disconnected from the key core, and at the moment, the square rod does not rotate no matter how the door handle rotates; when unlocking is needed, the matched key is required to be correctly inserted into the key hole on the key core, and then the key is rotated to drive the key core to rotate in one direction (the key core in the utility model adopts the prior art, and the key core can be rotated only by inserting the matched key, otherwise, the key core cannot be rotated); in the rotating process of the key core, the movable piece moves towards the direction of the rotary block through the matching between the transmission chute and the convex shaft on the movable piece, and the butt joint on the movable piece is inserted into the butt joint groove on the rotary block, so that the connection between the key core and the square rod is realized; then the door handle is rotated, the rotation of the door handle drives the movable piece and the square rod to rotate, and then the square rod drives the lock tongue to act, so that the door lock is opened; when the door handle is released, the door handle automatically rotates to the original position under the action of the return torque, and in the process, the movable piece moves in the direction away from the rotary block, so that the square rod is disconnected from the key core again.

According to the utility model, under the condition that a key is not inserted to unlock, the square bar and the lock core are disconnected, so that even if the key core is pried or rotated by a special device, torque is not transmitted to the square bar, and the square bar is not rotated, thereby greatly improving the safety of the door lock, greatly improving the difficulty of unlocking the door lock under the condition of no key, and further reducing the risk of theft of lawbreakers in the room.

The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.

Claims (8)

1. The clutch type door handle lock cylinder is characterized by comprising a key core and an outer sleeve sleeved outside the key core, wherein the outer sleeve is arranged on a door handle, one end of the key core is provided with a key hole, the other end of the key core is provided with a chute, a movable piece is connected in the chute, a protruding shaft is arranged on the movable piece, a transmission chute is arranged on the key core, a linear chute is arranged on the inner wall of the outer sleeve, and the protruding shaft on the movable piece penetrates through the transmission chute and stretches into the linear chute; one end of the key core, which is far away from the key hole, is connected with a rotatable rotating block corresponding to the movable piece, and the rotating block is connected with one end of the square rod; the movable piece is provided with a butt joint at one end close to the rotary block, and the rotary block is provided with a butt joint groove corresponding to the butt joint.

2. The clutch door handle lock cylinder of claim 1, wherein the cross-section of the abutment and the abutment groove are rectangular.

3. The clutch door handle lock cylinder of claim 1, wherein the linear runner is disposed along an axial direction of the outer sleeve.

4. A clutch door handle lock cylinder according to any one of claims 1 to 3, wherein the end of the key cylinder remote from the key hole is connected with a knob sleeve in which the knob is connected.

5. The clutch door handle lock cylinder of claim 4, wherein the knob sleeve is threadably coupled to the key cylinder.

6. The clutch type door handle lock cylinder according to claim 4, wherein one end of the key core, which is close to the key hole, is provided with a limiting end; the outer sleeve is sleeved on the outer side of the key core and is positioned between the limiting end and the rotary block sleeve.

7. A clutch door handle lock cylinder according to any one of claims 1 to 3, wherein the knob is provided with a square bar connecting groove, and one end of the square bar is connected to the square bar connecting groove.

8. A clutch door handle lock cylinder according to any one of claims 1-3, wherein one side of the outer sleeve is provided with a side square.

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