A door handle mechanical password lock

Abstract

A door handle mechanical password lock belongs to a clutch device. It mainly solves the existing problem of being unable to open the door due to forgetting to bring the key. The main points of the technical solution are: the door handle mechanical password lock comprises a password component (1), a clutch mechanism (2), a door handle housing (3) and a lock guide shaft (4); the clutch mechanism (2) comprises a clutch guide shaft (21), a clutch bottom plate (22), a clutch member (23) and an unlocking member (24); the clutch member (23) and the unlocking member (24) are arranged on the clutch bottom plate (22); the unlocking member (24) is provided with an unlocking opening (241) and more than one non-unlocking opening (242); the clutch member (23) is provided with a clutch opening (231) corresponding to the unlocking opening (241) of the unlocking member; the clutch bottom plate (22) is provided with a bottom plate opening (221); and the clutch member (23) is provided with an arc surface corresponding to the bottom plate opening (221). It is mainly used in mechanical password locks.

Description

Technical Field

[0001] The invention relates to a mechanical lock, in particular to a door handle mechanical password lock. Background Art

[0002] At present, electronic password locks have been widely used in recent years, but their disadvantages are also obvious. When the battery is exhausted or the power is insufficient, the electronic door lock will easily fail and cannot be used normally, so that users cannot enter the door; mechanical password door locks can be easily opened by experienced people; in view of this, how to provide a key-free, power-free, anti-theft mechanical password door lock has become the status quo that the present invention wants to improve. Summary of the invention

[0003] The purpose of the present invention is to provide a mechanical password lock which has a simple structure, is anti-theft and can replace a door handle.

[0004] The technical solution adopted by the present invention to solve its technical problem is: the door handle mechanical password lock of the present invention includes a password component 1, a clutch mechanism 2, a door handle shell 3 and a lock guide shaft 4, the password component 1 is connected to the lock guide shaft 4 through the clutch mechanism 2, the door handle shell 3 wraps the password component 1, the clutch mechanism 2 and the lock guide shaft 4, the password component 1 includes a password disk, the clutch mechanism 2 includes a clutch guide shaft 21, a clutch bottom plate 22, a clutch member 23 and an unlocking member 24, the clutch member 23 and the unlocking member 24 are arranged on the clutch bottom plate 22, an unlocking port 241 and more than one non-unlocking port 242 are arranged on the side of the unlocking member 24, the password component 1 is directly connected to the unlocking member 24, and when the password disk rotates, the unlocking member 24 rotates together, and the clutch member 23 is provided with a clutch opening 231 corresponding to the unlocking opening 241 of the unlocking member, that is, the unlocking opening 241 is meshed with the clutch opening 231, and the non-unlocking opening 242 is not meshed with the clutch opening 231, and the clutch bottom plate 22 is provided with a bottom plate opening 221, and the clutch member 23 is provided with an arc surface corresponding to the bottom plate opening 221, that is, the side of the clutch member 23 close to the bottom plate opening 221 is an arc surface, the center point of the arc surface coincides with the center point of the bottom plate opening 221, and the radius of the arc surface is the same as the radius of the bottom plate opening 221.

[0005] One end of the lock guide shaft 4 of the present invention is connected to the lock body, and the other end is provided with a lock guide shaft connecting port 41. The lock guide shaft 4 is connected to the clutch mechanism 2 through the lock guide shaft connecting port 41. The outer diameter of the lock guide shaft connecting port 41 is slightly smaller than the inner diameter of the bottom plate opening 221 on the clutch bottom plate, that is, the lock guide shaft connecting port 41 can pass through the bottom plate opening 221.

[0006] The lock guide shaft 4 of the present invention is connected to the lock body at one end thereof and is provided with a groove which cooperates with the lock body rotating shaft, and the lock guide shaft connecting port 41 at the other end thereof is provided with two sections of grooves which are connected with the clutch guide shaft 21, the diameter of the first section groove 411 being slightly larger than the rotation diameter of the clutch guide shaft 21, that is, the diameter of a circular trajectory formed by the clutch guide shaft 21 rotating around the center point of the clutch guide shaft 21, so that the clutch guide shaft 21 can rotate in the first section groove 411; the second section groove 412 cooperates with the clutch guide shaft 21; when the password is incorrect, the clutch guide shaft 21 can rotate in the first section groove 411 and cannot drive the lock guide shaft 4 to move; when the password is correct, the clutch guide shaft 21 is tightly connected to the second section groove 412, driving the lock guide shaft 4 to rotate.

[0007] When the unlocking port of the present invention corresponds to the clutch port, it is in the unlocking state;

[0008] When the non-unlocking port of the present invention corresponds to the clutch port, it is in a free state, that is, it cannot be unlocked;

[0009] The unlocking member of the present invention is provided with an unlocking notch and one or more non-unlocking notches on the side surface, the clutch member is provided with a clutch protrusion corresponding to the unlocking notch of the unlocking member, and the non-unlocking notch is recessed inwardly to a lesser extent than the unlocking notch.

[0010] The unlocking member of the present invention is provided with an unlocking protrusion and one or more non-unlocking protrusions on the side surface, and the clutch member is provided with a clutch recess corresponding to the unlocking protrusion of the unlocking member, and the non-unlocking protrusion protrudes outward to a greater extent than the unlocking protrusion. The clutch mechanism 2 of the present invention also includes a clutch upper plate 25, the clutch upper plate is provided with an upper plate opening and a limit groove is provided on the upper plate opening, the clutch guide shaft passes through the upper plate opening and is connected to the lock guide shaft 4, one end of the clutch guide shaft is smaller than the upper plate opening, and the other end is larger than the upper plate opening, and the clutch guide shaft passes through the upper plate opening and is provided with a limit at the connection with the limit groove, and when the clutch guide shaft rotates, it can drive the clutch upper plate to rotate.

[0011] The present invention is provided with two or more corresponding clutch members 23 on one side of the bottom plate opening, that is, two or more corresponding clutch members in opposite directions are provided on the clutch bottom plate 22, and the two clutch members 23 are respectively provided with protrusions, and the corresponding protrusions of the two clutch members 23 are connected by elastic members.

[0012] When the password is correct and the unlocking port corresponds to the clutch port, the clutch member and the bottom plate opening form a channel through which the lock guide shaft connecting port 41 can move.

[0013] When the password is incorrect and the non-unlocking port corresponds to the clutch port, the clutch member is squeezed by the unlocking member, so that the clutch member covers a portion of the bottom plate opening, causing the lock guide shaft connecting port to be unable to pass through the bottom plate opening.

[0014] In the present invention, limiting members are arranged around the clutch member 23 on the clutch bottom plate 22 to fix the movable range of the clutch member 23 and facilitate resetting and locking.

[0015] The door handle housing 3 of the present invention comprises a code cover, a handle and a base, and the code component 1, the clutch mechanism 2 and the lock guide shaft 4 are arranged in the handle to achieve integration.

[0016] The clutch upper plate 25 of the present invention is tightly connected to the clutch bottom plate 22 .

[0017] The password component 1 of the present invention is provided with a password disk and a latch.

[0018] The beneficial effects of the present invention are as follows: the present invention realizes connection and separation with the lock body shaft through the clutch mechanism, when the password is correct, the handle is connected to the lock body shaft to realize unlocking, when the password is incorrect, the handle rotates idly and cannot be unlocked; the password and the handle are connected as one, which greatly simplifies the structure of the lock body, reduces the manufacturing cost, and has good anti-theft performance. It is mainly used in mechanical password locks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the clutch mechanism structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the unlocking state structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the free state structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the clutch mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the lock guide shaft of the present invention;

[0026] Figure 8 It is a schematic diagram of the lock guide shaft structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the clutch guide shaft structure of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the clutch guide shaft of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0030] Example 1, see Figures 1 to 10 The unlocking member 24 of the present invention is provided with a plurality of tooth grooves which cooperate with the grooves of the code disk of the code assembly 1. When the code disk is rotated, the unlocking member 24 is driven to rotate. When the code combination is correct, the clutch guide shaft can be pushed to make the clutch guide shaft cooperate with the lock guide shaft, thereby turning the door handle to unlock the door; pushing the clutch guide shaft separates the unlocking member from the code disk, and turning the code disk can modify the code.

[0031] Example 2, see Figures 1 to 10 The clutch upper plate of the present invention is arranged above the clutch bottom plate and is tightly connected to the clutch bottom plate. When the password combination is correct, the clutch guide shaft can be pushed, and the clutch guide shaft fastens the limit groove of the clutch upper plate. When the clutch guide shaft rotates, the clutch upper plate and the clutch bottom plate rotate at the same time. The rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

[0032] Example 3, see Figures 1 to 10 The clutch bottom plate of the present invention is provided with four unlocking members and two clutch members, one end of the clutch member is provided with two unlocking members, a limiting member is provided between the two unlocking members, the side of the limiting member close to the clutch member is arc-shaped, and the side of the clutch member close to the limiting member is also arc-shaped; a spring is provided between the two clutch members, and when the unlocking member rotates, the clutch member is unlocked and reset under the action of elasticity. The rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

Claims

1. A door handle mechanical password lock, characterized by: The door handle mechanical password lock comprises a password component (1), a clutch mechanism (2), a door handle housing (3) and a lock guide shaft (4); the password component (1) is connected to the lock guide shaft (4) via the clutch mechanism (2); the door handle housing (3) encloses the password component (1), the clutch mechanism (2) and the lock guide shaft (4); the clutch mechanism (2) comprises a clutch guide shaft (21), a clutch base plate (22), a clutch member (23) and an unlocking member (24); the clutch member (23) and the unlocking member (24) are arranged on the clutch base plate (22); the unlocking member (24) is provided with an unlocking opening (241) and more than one non-unlocking opening (242); the clutch member (23) is provided with a clutch opening corresponding to the unlocking opening (241) of the unlocking member (231), a bottom plate opening (221) is provided on the clutch bottom plate (22), and an arc surface corresponding to the bottom plate opening (221) is provided on the clutch member (23); the side of the clutch member (23) close to the bottom plate opening (221) is an arc surface, the center point of the arc surface coincides with the center point of the bottom plate opening (221), and the radius of the arc surface is the same as the radius of the bottom plate opening (221); one end of the lock guide shaft (4) is connected to the lock body, and the other end is provided with a lock guide shaft connecting port (41), the lock guide shaft (4) is connected to the clutch mechanism (2) through the lock guide shaft connecting port (41), and the outer diameter of the lock guide shaft connecting port (41) is slightly smaller than the inner diameter of the bottom plate opening (221) on the clutch bottom plate; the lock guide shaft connecting port (41) can pass through the bottom plate opening (221).

2. A door handle mechanical password lock according to claim 1, characterized in that: The clutch mechanism (2) further comprises a clutch upper plate (25), the clutch upper plate being provided with an upper plate opening and the upper plate opening being provided with a limit groove, the clutch guide shaft passing through the upper plate opening and being connected to the lock guide shaft (4).

3. A door handle mechanical code lock according to claim 1, characterized in that: Two corresponding clutch members (23) are provided on one side of the bottom plate opening, and the two clutch members (23) are respectively provided with protrusions, and the corresponding protrusions of the two clutch members (23) are connected via an elastic member.

4. A door handle mechanical code lock according to claim 1, characterized in that: Limiting members are arranged around the clutch member (23) on the clutch bottom plate (22).

5. The door handle mechanical code lock according to claim 1, characterized in that: The door handle housing (3) comprises a code cover, a handle and a base.

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