CN212224927U - Clutch mechanism of fingerprint lock - Google Patents

Abstract

The utility model provides a clutch mechanism of fingerprint lock. The clutch mechanism comprises a lock shell, a clutch, a handle reset spring and a clutch control mechanism, wherein the clutch is arranged in the lock shell, the lock shell on two sides of the clutch is respectively provided with a screw post, the clutch is provided with a clutch push rod, the handle reset spring is arranged between the clutch and the lock shell and is fixed on the handle, two ends of the handle reset spring are respectively supported on the screw posts on two sides of the clutch, the clutch control mechanism comprises a supporting piece, a push-pull device and a knob, the supporting piece is in a strip shape and is fixed on one side of the push-pull device and opposite to the clutch push rod, the push-pull device is arranged in the lock shell, part of the knob penetrates through the lock shell to be fixed with the push-pull device, and the knob can be rotated to drive the push-pull device to move, so that the supporting piece on the. After the structure is adopted, because the two screw columns are shared on average, the service life of the screw columns is prolonged, and meanwhile, the blocking pieces are strip-shaped pieces, so that the clutch push rod is convenient to reset.

Description

Clutch mechanism of fingerprint lock

Technical Field

The utility model relates to a fingerprint lock accessory, specific clutching mechanism of fingerprint lock that says so.

Background

In order to prevent a thief from inserting an iron wire into a cat eye to pull an inner handle in a door to open the door, a mechanical small lock is generally arranged on a lock shell on the inner side of the door in the existing door lock, the small lock can be rotated to be reversely locked when the thief goes out of the door, and the mechanical small lock cannot play a role in theft prevention if the thief goes out of the door, so that a clutch mechanism is arranged in the lock shell of the inner handle in the existing fingerprint lock, the clutch mechanism comprises a clutch, a handle reset spring and a clutch control mechanism, the clutch is arranged on the inner side of the middle part of the lock shell, screw columns are respectively arranged on two sides and above the clutch, the handle reset spring is arranged between the clutch and the lock shell, the handle penetrates through the lock shell and then penetrates through the handle reset spring to be connected with the clutch, two ends of the handle reset spring are respectively abutted against two sides of the screw column above the clutch, and the clutch is driven to drive a lock pin to rotate to unlock or unlock through forward transmission, the handle is reset by the handle reset spring, a clutch push rod is arranged in the clutch, the clutch push rod is provided with a spring, the clutch push rod part extends out of the lower part of the clutch, the clutch control mechanism is provided with a push-pull device, the upper end of the push-pull device is provided with a stop piece, the lower end of the push-pull device is provided with a knob, the push-pull device is controlled to jack up upwards or retract downwards to the stop piece by rotating the knob, when the resisting piece of the clutch control mechanism upwards jacks up the clutch push rod of the clutch, the clutch is in a separated state, the inner handle cannot bring the lock pin to unlock no matter how the inner handle rotates, when the resisting piece of the clutch control mechanism retracts to leave the clutch push rod of the clutch, the clutch is in an on state, the inner handle can be normally unlocked, therefore, before the door comes out, the knob is firstly rotated to enable the clutch to be in a separated state, and then the door lock is locked, so that the thief can be prevented from unlocking.

However, the clutch mechanisms of the existing fingerprint locks have at least the following two problems: firstly, handle reset spring both ends head all supports the both sides at same screw post, regardless of handle positive and negative rotation unblock or locking process, all make same screw post atress, and handle reset spring's intensity is bigger again, this just makes the screw post that supports handle reset spring fracture easily, secondly, current fingerprint lock clutching mechanism's clutch control mechanism's support separation blade is for round clutch below semicircle design, and support separation blade both ends longest can only extend to the screw post below of clutch both sides, if the thief leads to the handle in-process in the iron wire pulling, clutch push rod tip card easily between support separation blade end and screw post below the clutch, at this moment if someone just can't go out in the room.

SUMMERY OF THE UTILITY MODEL

In view of the defect that clutch mechanism of current fingerprint lock exists, the utility model aims to solve the technical problem that: the fingerprint lock clutch mechanism has long service life and ideal use effect.

In order to achieve the above object, according to one aspect of the present invention, the present invention is realized by the following technical measures: a clutch mechanism for a fingerprint lock, comprising: a lock shell, a clutch, a handle return spring and a clutch control mechanism,

the clutch is arranged in the lock shell, the lock shell at the two sides of the clutch is respectively provided with a screw post, the clutch is provided with a clutch push rod,

the handle reset spring is arranged between the clutch and the lock shell and fixed on the handle, two ends of the handle reset spring are respectively propped against screw posts on two sides of the clutch,

the clutch control mechanism comprises a blocking piece, a push-pull device and a knob, wherein the blocking piece is in a strip shape and is fixed on one side of the push-pull device and opposite to the clutch push rod, the push-pull device is arranged in the lock shell, part of the knob penetrates through the lock shell to be fixed with the push-pull device, and the knob is rotated to drive the push-pull device to move, so that the blocking piece on the push-pull device pushes the clutch push rod.

Compared with the prior art, the utility model has the advantages of: 1. two ends of the handle return spring are respectively abutted against the screw posts on two sides of the clutch, and the times of bearing external force of the two screw posts are averagely shared by the two screw posts, so that the service life of the screw posts is prolonged; 2. the clutch push rod can slide smoothly all the time, and cannot be abutted to the end part of the abutting piece and then clamped, so that the door lock is prevented from being opened.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 is a schematic structural view of a clutch mechanism of a fingerprint lock according to the present invention.

Description of reference numerals: 1. a lock housing; 2. a clutch; 3. a screw post; 4. a handle return spring; 5. a clutch push rod; 6. supporting the blocking piece; 7. a push-pull device.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1, the clutch mechanism of a fingerprint lock according to this embodiment includes a lock housing 1, a clutch 2, a handle return spring 4 and a clutch control mechanism, wherein the clutch 2 is fixed inside the middle of the lock housing 1, a stud 3 is fixed on each of the lock housing 1 on the left and right sides of the clutch 2, a clutch push rod 5 is provided at the rear end of the clutch 2, the handle return spring 4 is disposed between the clutch 2 and the lock housing 1 and fixed on the handle, two ends of the handle return spring 4 respectively abut against the studs 3 on the two sides of the clutch 2, the clutch control mechanism includes a stop plate 6, a push-pull device 7 and a knob, the stop plate 6 is a rectangular strip-shaped plate, the narrower bottom surface of the stop plate is horizontally fixed on the front side of the push-pull device 7 and opposite to the clutch push rod 5, the push-pull device 7 is fixed in the lock housing 1, and part of the knob penetrates through the lock housing 1 from the bottom surface of the lock housing 1 and is fixed with the push-pull, after the push-pull device 7 can be moved by rotating the knob, the blocking piece 6 on the push-pull device can push the clutch push rod 5.

In the clutch mechanism of fingerprint lock provided by this embodiment, two ends of the handle return spring 4 are respectively supported on the screw posts 3 at two sides of the clutch 2, so that the times of bearing external force of the two screw posts 3 are averagely shared by the two screw posts 3, the service life of the screw posts 3 is prolonged, and the supporting sheet 6 is a horizontally arranged strip-shaped sheet, when the supporting sheet 6 is supported on the clutch push rod 5 of the clutch 2, the inner handle is rotated, the clutch 2 is separated, even in the process that the tail end of the clutch push rod 5 of the clutch 2 slides to the end of the supporting sheet 6 along the supporting sheet 6, the clutch push rod 5 slowly extends out of the clutch 2 under the action of the spring in the clutch 2, the clutch 2 is not jointed, when the handle is released, the clutch push rod 5 of the clutch 2 slides to the middle part of the supporting sheet 6, the clutch push rod 5 retracts into the clutch 2, and the clutch 2 is always in a separated state, and the clutch push rod 5 can slide smoothly all the time in the rotating and sliding process of the clutch push rod 5, and cannot be blocked after abutting against the end part of the resisting sheet 6.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. A clutch mechanism for a fingerprint lock, comprising: a lock shell, a clutch, a handle return spring and a clutch control mechanism,

it is characterized in that the preparation method is characterized in that,

the clutch is arranged in the lock shell, the lock shell at the two sides of the clutch is respectively provided with a screw post, the clutch is provided with a clutch push rod,

the handle reset spring is arranged between the clutch and the lock shell and fixed on the handle, two ends of the handle reset spring are respectively propped against screw posts on two sides of the clutch,

the clutch control mechanism comprises a blocking piece, a push-pull device and a knob, wherein the blocking piece is in a strip shape and is fixed on one side of the push-pull device and opposite to the clutch push rod, the push-pull device is arranged in the lock shell, part of the knob penetrates through the lock shell to be fixed with the push-pull device, and the knob is rotated to drive the push-pull device to move, so that the blocking piece on the push-pull device pushes the clutch push rod.

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