CN211287049U

CN211287049U - Reduction gearbox structure for intelligent door lock

Info

Publication number: CN211287049U
Application number: CN201921516600.8U
Authority: CN
Inventors: 肖延安
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-08-18
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a reducing gear box structure for intelligent lock. The transmission assembly comprises a first gear, a second gear, a third gear and a central transmission part, wherein the first gear comprises a first large gear and a first small gear which are coaxially arranged, and the second gear comprises a second large gear and a second small gear which are coaxially arranged; the third gear is mounted on the central transmission part, the central transmission part is provided with a pin port, the pin port and the third gear are coaxially arranged, and the pin port and the third gear synchronously rotate; the second pinion lacks part of the teeth. The utility model discloses a reducing gear box structure for intelligent lock is when unblanking or close the lock after, driver drive second pinion to the second pinion lack partial tooth department just to the third gear to third gear and second pinion do not mesh, are equivalent to the third gear dropout, and the user can easily open the lock through rotating the round pin mouth indoor.

Description

Reduction gearbox structure for intelligent door lock

Technical Field

The utility model relates to an intelligence lock drive field especially relates to a reducing gear box structure for intelligent lock.

Background

At present, the intelligent automatic door lock is widely applied because the original lock body does not need to be replaced and the door structure is not damaged. The mode of a direct current motor and a reduction box is adopted, and large-torque output is guaranteed. However, the following problems arise: when a user opens or closes the lock indoors, the user needs to use the electronic driving part to push the lock bolt, usually a key, and after the electronic driving part is pressed down, the electronic driving part starts to work, and the response speed is slow. If the hand is used for twisting, the reduction gearbox needs large torque to twist, and a person cannot normally open the reduction gearbox. The current solutions are as follows:

1. a mechanical switch is added. When the device is used, the mechanical switch is firstly turned on to enable the gear in the reduction gearbox to be tripped.

2. An electronic clutch is added. After the electronic driving part is locked or unlocked, the other direct current motor is driven to drive the reduction gearbox gear to be tripped.

The defects of the two solutions are as follows: the tripping mechanism is added, and the tripping drive (manual or electric) is added, so that the system structure is complex and the drive is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough and proposing the reducing gear box structure that is used for intelligent lock among the prior art, this a reducing gear box structure for intelligent lock solves the problem of indoor switch lock.

The technical scheme of the utility model as follows:

the reduction gearbox structure for the intelligent door lock comprises a driver and a transmission assembly, wherein the transmission assembly comprises a first gear, a second gear, a third gear and a central transmission part, the first gear comprises a first large gear and a first small gear which are coaxially arranged, and the second gear comprises a second large gear and a second small gear which are coaxially arranged; the output end of the driver is provided with a worm, the worm is meshed with the first gearwheel, the first pinion is meshed with the second gearwheel, the second pinion is meshed with the third gearwheel, the third gearwheel is mounted on the central transmission part, the central transmission part is provided with a pin opening, the pin opening and the third gearwheel are coaxially arranged, and the pin opening and the third gearwheel synchronously rotate; the second pinion lacks part of the teeth.

The second gearwheel is provided with a positioning hole.

The detection piece is used for detecting the position of the positioning hole; when the detection piece detects the positioning hole, the tooth part of the second pinion which is lack of part is opposite to the third gear, and at the moment, the second pinion and the third gear are in a non-meshed state.

The detection piece is a photoelectric switch.

The second gearwheel is fixedly provided with a fixed column.

The detection piece is used for detecting the position of the fixed column; when the detection piece detects the fixed column, the part, where the second pinion lacks part of teeth, is just opposite to the third gear, and at the moment, the second pinion and the third gear are in a non-meshed state.

The detection piece is a mechanical switch.

The driver is a direct current motor.

The gearbox also comprises an upper shell and a lower shell which are used for fixing the gearbox.

The utility model has the advantages that: the utility model discloses a reducing gear box structure for intelligent lock is when unblanking or close the lock after, driver drive second pinion to the second pinion lack partial tooth department just to the third gear to third gear and second pinion do not mesh, are equivalent to the third gear dropout, and the user can easily open the lock through rotating the round pin mouth indoor.

Drawings

FIG. 1 is a plan view of the reduction box of the present invention;

FIG. 2 is a three-dimensional structure diagram of the reduction box for the intelligent door lock of the present invention;

FIG. 3 is a structural diagram of a second gearwheel, a second pinion and a detecting member of the present invention;

figure 4 is the utility model is used for intelligent lock structure chart.

In the figure: 1-transmission component, 11-first gear, 111-first gearwheel, 112-first pinion, 12-second gear, 121-second gearwheel, 122-second pinion, 13-third gear, 14-central transmission component, 141-pin opening, 15-positioning hole, 15' -fixing column, 16-detection component, 2-driver, 21-worm, 3-lower shell and 4-upper shell.

Detailed Description

For better illustration of the present invention, the following description will be made with reference to the accompanying drawings.

As shown in fig. 1 to 3, the reduction box structure for the intelligent door lock comprises a driver 2 and a transmission assembly 1, wherein the transmission assembly 1 comprises a first gear 11, a second gear 12, a third gear 13 and a central transmission part 14, the first gear 11 comprises a first large gear 111 and a first small gear 112 which are coaxially arranged, and the second gear 12 comprises a second large gear 121 and a second small gear 122 which are coaxially arranged; the output end of the driver 2 is provided with a worm 21, the worm 21 is meshed with a first large gear 111, a first small gear 112 is meshed with a second large gear 121, a second small gear 122 is meshed with a third gear 13, the third gear 13 is installed on a central transmission piece 14, the central transmission piece 14 is provided with a pin port 141, the pin port 141 and the third gear 13 are coaxially arranged, and the pin port 141 and the third gear 13 synchronously rotate; the second pinion 122 of the second gear 12 lacks a portion of the teeth.

Preferably, in the first scheme, the second gearwheel 121 is provided with a positioning hole 15; a detecting member 16 for detecting the position of the positioning hole 15; when the detecting member 16 detects the positioning hole 15, the missing part of the second pinion 122 faces the third gear 13, and the second pinion 122 and the third gear 13 are in a non-meshed state; the detection member 16 is a photoelectric switch.

Preferably, in the second scheme, a fixing column 15' is fixedly mounted on the second gearwheel 121 of the second gear 12; a detector 16 for detecting the position of the fixing column 15'; when the detecting member 16 detects the fixing post 15', the part of the second pinion 122 lacking part of teeth faces the third gear 13, the second pinion 122 and the third gear 13 are in a non-meshed state, and the detecting member 16 is a mechanical switch.

When the detecting member 16 is an optical switch or a mechanical switch after unlocking or locking, and the optical switch does not detect the positioning hole 15 or the mechanical switch does not detect the fixing post 15', the driver 2 sequentially drives the worm 21, the first gear 11 and the second gear 12, so as to drive the second pinion 122 to rotate until the second pinion 122 lacks part of teeth and faces the third gear 13, and since the gear ratio of the second pinion 122 to the third gear 13 is small, the rotation of the third gear 13 has no influence on the position of the latch. At this time, the second pinion 122 and the third gear 13 are in a non-meshed state, which corresponds to the third gear 13 being disengaged, so that the user can easily open the door lock by rotating the pin opening 141 indoors.

Specifically, the driver 2 is a dc motor.

Further, the device also comprises a lower shell 3 and an upper shell 4 which are used for fixing a reduction gearbox, wherein the reduction gearbox is fixed in the lower shell 3, and the upper shell 4 is fixed on the lower shell 3; the pin hole 141 is exposed to the surface of the upper case 4, and the user can manually rotate the pin hole 141.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modification, equivalent replacement or improvement made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The reduction gearbox structure for the intelligent door lock comprises a driver and a transmission assembly, wherein the transmission assembly comprises a first gear, a second gear, a third gear and a central transmission part, the first gear comprises a first large gear and a first small gear which are coaxially arranged, and the second gear comprises a second large gear and a second small gear which are coaxially arranged; the output end of the driver is provided with a worm, the worm is meshed with the first gearwheel, the first pinion is meshed with the second gearwheel, the second pinion is meshed with the third gearwheel, the third gearwheel is mounted on the central transmission part, the central transmission part is provided with a pin opening, the pin opening and the third gearwheel are coaxially arranged, and the pin opening and the third gearwheel synchronously rotate; the method is characterized in that: the second pinion lacks part of the teeth.

2. The reduction gearbox arrangement for an intelligent door lock according to claim 1, wherein: the second gearwheel is provided with a positioning hole.

3. The reduction gearbox structure for an intelligent door lock according to claim 2, wherein: the detection piece is used for detecting the position of the positioning hole; when the detection piece detects the positioning hole, the tooth part of the second pinion, which is lack of part, is just opposite to the third gear, and at the moment, the second pinion and the third gear are in a non-meshed state.

4. The reduction gearbox arrangement for an intelligent door lock according to claim 3, wherein: the detection piece is a photoelectric switch.

5. The reduction gearbox arrangement for an intelligent door lock according to claim 1, wherein: and a fixing column is fixedly arranged on the second gearwheel.

6. The reduction gearbox arrangement for an intelligent door lock according to claim 5, wherein: the detection piece is used for detecting the position of the fixed column; when the detection piece detects the fixed column, the tooth part of the second small gear, which is lack of part, is just opposite to the third gear, and at the moment, the second small gear and the third gear are in a non-meshed state.

7. The reduction gearbox structure for an intelligent door lock according to claim 6, wherein: the detection piece is a mechanical switch.

8. The reduction gearbox arrangement for an intelligent door lock according to claim 1, wherein: the driver is a direct current motor.

9. The reduction gearbox arrangement for an intelligent door lock according to claim 1, wherein: the gearbox also comprises an upper shell and a lower shell which are used for fixing the gearbox.