CN207513329U - A rear clutch electronic door lock - Google Patents

Abstract

A rear clutch electronic door lock comprises a lock body, a lock front part arranged in front of a door plate, a lock rear part arranged behind the door plate, a door lock front handle, a door lock rear handle, a lock body linkage shaft, a rotating shaft, a transmission structure and a clutch; the clutch is arranged at the rear part of the lock and comprises a clutch bottom cover and a clutch cover plate, and a rotating shaft transmission part, a clutch base, a torsion spring, a rear handle linkage part and a clutch transmission part locking device are arranged in a cavity formed by the clutch bottom cover and the clutch cover plate. The utility model has the advantages of safety and reliability, effectively improves the anti-theft and anti-prying performances, and greatly improves the use safety; when the door is unlocked, the door is unlocked through linkage of the clutch transmission part and the rotating shaft transmission part, when the door is unlocked, linkage between the clutch transmission part and the rotating shaft transmission part is released, the rotating shaft transmission part is directly controlled to be unlocked, and the two unlocking schemes are simple and practical.

Description

A rear clutch electronic door lock

【Technical field】

The utility model relates to a door lock, in particular to a rear clutch electronic door lock.

【Background technique】

With the rapid development of the national economy, the safety of family property is becoming more and more important. It is urgent to strengthen the anti-theft of door locks. Traditional home locks all use simple mechanical methods, which obviously cannot meet this requirement. With the increasing development of smart homes and the rapid development of electronic technology information With the rise of today, smart devices have penetrated into our lives. Therefore, electronic door locks have emerged and are widely used in our lives.

The clutches of existing door locks are all located in the inner cavity of the outer lock, and the safety factor in terms of anti-theft and prying is not enough. The clutch is a key component for unlocking, and it is very easy to be damaged electronically or mechanically when it is placed outside the lock. Complicated and expensive to manufacture.

In view of the above problems, the utility model proposes a new technical solution.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a rear clutch electronic door lock with a safe and reliable structure and strong practicability for unlocking.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A rear clutch electronic door lock, comprising a lock body, a lock front part arranged in front of a door panel, a lock rear part arranged in the back of the door panel, a handle at the front part of the door lock, a handle at the rear part of the door lock, a lock body linkage shaft, Rotary shaft, transmission structure, and clutch;

The clutch is arranged at the rear of the lock, and it includes a clutch bottom cover and a clutch cover plate. In the cavity formed by the clutch bottom cover and the clutch cover plate, a rotating shaft transmission part, a clutch transmission part, a clutch base, a twist Spring, rear handle linkage parts and clutch transmission parts locking device;

Both the bottom cover of the clutch and the upper part of the clutch cover are provided with installation through holes, and the central axes of the two installation through holes coincide;

A first through hole is opened on the clutch base, and the clutch base is installed in the upper cavity of the clutch bottom cover, and the central axis of the first through hole coincides with the central axis of the installation through hole;

The clutch transmission part is arranged on the clutch base and can rotate at a certain angle on the clutch base under the action of an external force. The clutch transmission part includes a clutch transmission film, and a ring is arranged on the front part of the clutch transmission film. shaped protrusion so that a clutch inner chamber is formed at its front part, a clutch locking gap is provided at the bottom of the clutch transmission film, a second through hole is provided at the middle part of the clutch transmission film, and the center of the second through hole The axis coincides with the central axis of the installation through hole;

The clutch transmission component locking device is installed in the inner cavity of the lower part of the clutch bottom cover, which includes an electronic driving structure and a clutch transmission locking structure, and the clutch transmission locking structure can be moved upwards under the control of the electronic driving structure. Stretch out and fall into the clutch locking notch to limit the rotation of the clutch transmission parts, or retract downward to escape from the clutch locking notch;

The torsion spring is arranged on the clutch base and connected with the clutch transmission part, and its torsion acts on the clutch transmission part so that the clutch transmission part has a tendency to maintain the initial state;

The rotating shaft transmission part is built in the clutch inner cavity at the front end of the clutch transmission part, and can rotate in the clutch inner cavity under the action of an external force. There is a limited space between the rear of the rotating shaft transmission part and the rear end of the clutch inner cavity. The position linkage structure links the shaft transmission part and the clutch transmission part into one;

The front end of the rotating shaft is connected and fixed to the rotating shaft end of the front handle of the door lock, and the rear end of the rotating shaft is snapped backward and fixed to the front part of the rotating shaft transmission part;

The rear handle linkage part includes a rear handle linkage shaft, the rear end of the rear handle linkage shaft is connected and fixed with the shaft end of the rear handle of the door lock, and its front end passes through the clutch bottom cover in sequence. After installing the through hole, the first through hole and the second through hole, they are connected and fixed behind the rotating shaft transmission part to link with the rotating shaft transmission part. A pusher is fixedly connected to the rear end of the rear handle linkage shaft, and the pusher The rear handle linkage shaft can be pushed forward to move forward and push the rotating shaft transmission part built in the clutch inner cavity to the front end of the clutch inner cavity to break away from the limitation of the limit linkage structure.

Further, a guide frame is extended backward on the clutch base, and a guide cavity is opened inside the guide frame, and the front and rear ends of the guide cavity respectively pass through the front and rear ends of the guide frame, and the guide frame passes through the clutch The installation through hole of the bottom cover is fixed on the bottom cover of the clutch. The rear handle linkage shaft is built in the guide cavity and can move forward and backward along the guide cavity. It is a travel limit device that completely escapes from the guide cavity, prevents the rear handle linkage shaft from moving forward, and pushes the rotating shaft transmission parts out of the clutch inner cavity completely.

Further, at the rear of the rotating shaft transmission part, there is provided a second clamping part which is clamped and fixed with the front end of the rear handle linkage shaft.

Further, the limiting linkage structure includes a limiting ring arranged at the rear of the rotating shaft transmission part, and a limiting protrusion arranged at the rear end of the clutch inner cavity, and the limiting ring is a ring provided with a limiting notch body.

Further, the clutch transmission locking structure is a lock tongue that can be inserted into the clutch locking notch.

Compared with the prior art, the beneficial effect of the utility model is: the utility model is provided with a clutch on the rear part of the electronic door lock, and due to the isolation of the door body, the difficulty of picking the lock is greatly improved, and the structure is simple, safe and reliable , easy to assemble, effectively improve the performance of anti-theft and prying, and greatly improve the safety of use; when the door is unlocked, the clutch transmission part and the shaft transmission part are linked to unlock, and when the door is unlocked, the clutch transmission part and the shaft transmission part are released The linkage between them directly controls the unlocking of the rotating shaft transmission parts. The two unlocking schemes are simple and practical.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

【Description of drawings】

Fig. 1 is the three-dimensional schematic diagram of clutch in the utility model embodiment;

Fig. 2 is a structural schematic diagram 1 of the clutch in the embodiment of the utility model;

Fig. 3 is the structural schematic diagram II of the clutch in the embodiment of the utility model;

Fig. 4 is the structural schematic diagram three of the clutch in the embodiment of the utility model;

Fig. 5 is a fourth structural schematic diagram of the clutch in the embodiment of the utility model.

【Detailed ways】

A rear clutch electronic door lock, comprising a lock body, a lock front part arranged in front of a door panel, a lock rear part arranged in the back of the door panel, a handle at the front part of the door lock, a handle at the rear part of the door lock, a lock body linkage shaft, Rotary shaft, transmission structure, and clutch;

As shown in Figures 1 to 5, the clutch is arranged at the rear of the lock, which includes a clutch bottom cover 10 and a clutch cover plate 20, and is arranged in the cavity formed by the clutch bottom cover 10 and the clutch cover plate 20. There are rotating shaft transmission part 30, clutch transmission part 40, clutch base 50, torsion spring, rear handle linkage part 60 and clutch transmission part locking device 70;

Both the clutch bottom cover 10 and the clutch cover plate 20 are provided with installation through holes 80, and the central axes of the two installation through holes 80 coincide;

A first through hole 51 is opened on the clutch base 50, and the clutch base 50 is installed in the upper inner chamber of the clutch bottom cover 10, and the central axis of the first through hole 51 and the central axis of the installation through hole 80 Overlap; on the clutch base 50, a guide frame 52 is extended backwards, and a guide cavity 53 is provided inside the guide frame 52, and the front and rear ends of the guide cavity 53 respectively pass through the front and rear ends of the guide frame 52. The guide frame 52 passes through the installation through hole 80 of the clutch bottom cover 10 and is fixed on the clutch bottom cover 10; during installation, the guide frame 52 passes through the installation through hole 80 of the clutch bottom cover 10 and is erected on the installation through hole 80, Then clamp the rear part of the clutch base 50 on the installation through hole 80, so that the clutch base 50 is fixed on the clutch bottom cover 10;

The clutch transmission part 40 is arranged on the clutch base 50 and can rotate at a certain angle on the clutch base 50 under the action of an external force. The clutch transmission part 40 includes a clutch transmission bottom plate 41, on which the clutch transmission bottom plate 41 The front part of the front part is provided with an annular protrusion so that a clutch cavity 42 is formed at the front of the clutch transmission film, a clutch locking gap 43 is provided at the bottom of the clutch transmission film 41, and a clutch locking gap 43 is provided at the middle part of the clutch transmission film 41. The second through hole 44, the central axis of the second through hole 44 coincides with the central axis of the installation through hole 80, and the central axis of the annular protrusion coincides with the central axis of the second through hole 44;

The clutch transmission component locking device 70 is installed in the inner cavity of the lower part of the clutch bottom cover 10, which includes an electronic driving structure 71 and a clutch transmission locking structure 72, and the clutch transmission locking structure 72 can be used for electronic driving. Under the control of the structure 71, it protrudes upwards and falls into the clutch locking notch 43 to limit the rotation of the clutch transmission part 40, or retracts downward to escape from the clutch locking notch 43. The clutch transmission locking structure 72 can be inserted into the clutch locking notch 43, when the deadbolt is inserted into the clutch locking notch 43, the clutch transmission part 40 is limited and locked, and cannot rotate on the clutch base 50;

Described torsion spring is arranged on the clutch base 50 and is connected with the clutch transmission part 40, and its torsional force acts on the clutch transmission part 40 so that the clutch transmission part 40 has the tendency of keeping the initial state all the time, when the clutch transmission part 40 is on the clutch base 50 When rotating upwards, the torsion spring has always driven the clutch transmission part 40 to rotate to the initial state;

The shaft transmission part 30 is built in the clutch inner cavity 42 at the front end of the clutch transmission part 40, and can rotate in the clutch inner cavity 42 under the action of an external force. A limit linkage structure is set between the rear ends to link the rotating shaft transmission part and the clutch transmission part 40 as a whole. The limit linkage structure includes a limit ring 31 arranged at the rear of the rotation shaft transmission part 30, and a limit ring 31 arranged in the clutch. The limit protrusion 45 at the rear end of the cavity 42, and the limit ring 31 is a ring body provided with a limit gap; The limit linkage is limited by the limit linkage structure, that is, the limit ring 31 of the rotating shaft transmission part 30 and the limit protrusion 45 of the clutch inner cavity 42 are stuck in a limit. The 40 parts of the clutch transmission part rotate. When the shaft transmission part 30 is at the front end of the clutch inner cavity 42, the shaft transmission part 30 and the clutch transmission part 40 are out of linkage, and the limit linkage structure fails. If the shaft transmission part 30 is rotated and clutched by an external force The transmission part 40 is irrelevant;

The front end of the rotating shaft is connected and fixed to the rotating shaft end of the front handle of the door lock, and the rear end of the rotating shaft is snapped backward and fixed to the front part of the rotating shaft transmission part 30. In the embodiment, the front part of the rotating shaft transmission part 30 is provided with a There is a first engaging part 32 engaged with the rotating shaft;

The rear handle linkage part 60 includes a rear handle linkage shaft 61, the rear end of the rear handle linkage shaft 61 is connected and fixed with the shaft end of the rear handle of the door lock, and its front end passes through the bottom of the clutch in sequence. The installation through hole 80, the first through hole 51, and the second through hole 44 on the cover 10 are connected and fixed behind the shaft transmission part 30 to link with the shaft transmission part 30. The front end of the handle linkage shaft 61 is clamped and fixed to the second clamping part 33; a pusher 62 is fixedly connected to the rear end of the rear handle linkage shaft 61, and the pusher 62 can push the rear handle linkage shaft 61 moves forward and pushes the rotating shaft transmission part 30 built in the clutch inner cavity 42 to the front end of the clutch inner cavity 42 to break away from the limitation of the limit linkage structure; the rear handle linkage shaft 61 is built in the guide cavity 53 And can move back and forth along guide chamber 53, be provided with in described guide chamber 53 and prevent rear handle linkage shaft 61 from moving backward completely and deviate from guide chamber 53, prevent rear handle linkage shaft 61 from moving forward and rotate shaft transmission part 30 completely. Push out the stroke limiter of the clutch inner chamber 42.

When unlocking in front of the door, the user first opens the electronic driving structure 71 through electronic decoding, and the electronic driving structure 71 drives the clutch transmission locking structure 72 to release the restriction on the clutch transmission part 40, that is, the electronic driving structure 71 drives the dead bolt to come out. Clutch and lock the gap 43, and then turn the handle at the front of the door lock; after the handle at the front of the door lock rotates, the interlocking shaft rotates, so that the shaft transmission part 30 linked with the rear end of the shaft rotates synchronously, and the shaft transmission part 30 rotates Simultaneously, the clutch transmission part 40 that engages with it through the interlocking linkage structure of the limit is rotated synchronously. At this time, since the clutch transmission part 40 does not have the limit of the dead bolt, the clutch transmission part 40 and the rotating shaft transmission part 30 can rotate freely. The rotating shaft can rotate without restriction, thereby driving the lock body linkage shaft linked with it through the transmission structure to rotate, and finally driving the lock body to open the door lock; The rear handle linkage shaft 61 moves forward and pushes the rotating shaft transmission part 30 to the front end of the clutch inner chamber 42 to make it break away from the linkage limit with the clutch transmission part 40, and then turns the handle at the rear of the door lock to drive the rear handle. The hand linkage shaft 61 rotates, while the rear handle linkage shaft 61 rotates, it drives the rotating shaft transmission part 30 fixedly connected with it to rotate, synchronously, drives the rotating shaft to rotate, thereby drives the lock body linkage shaft linked with it through the transmission structure to rotate, and finally Drive the lock body to open the door lock.

The utility model is provided with a clutch on the rear part of the electronic door lock. Due to the isolation of the door body, the difficulty of picking the lock is greatly improved, the structure is simple, safe and reliable, and it is easy to assemble. Safety in use: when unlocking in front of the door, the clutch transmission part 40 and the rotating shaft transmission part 30 are linked to unlock, and when the door is unlocked, the linkage between the clutch transmission part 40 and the rotating shaft transmission part 30 is released to directly control the rotating shaft transmission part 30 Unlocking, two unlocking schemes are simple and practical.

Although the present utility model has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that the present utility model can be modified without departing from the principle and spirit scope of the present utility model defined by the claims. Various changes or modifications are made to the utility model. Therefore, the detailed description of the embodiments of the present disclosure is only for explaining, not for limiting the utility model, but the scope of protection is defined by the content of the claims.

Claims (5)

1. A rear clutch electronic door lock, comprising a lock body, a lock front part located in front of the door panel, a lock rear part located behind the door panel, a handle at the front part of the door lock, a handle at the rear part of the door lock, and lock body linkage A shaft, a rotating shaft, a transmission structure, and a clutch are characterized in that, The clutch is arranged at the rear of the lock, and it includes a clutch bottom cover and a clutch cover plate. In the cavity formed by the clutch bottom cover and the clutch cover plate, a rotating shaft transmission part, a clutch transmission part, a clutch base, a torsion spring, Rear handle linkage parts and clutch transmission parts locking device; Both the bottom cover of the clutch and the upper part of the clutch cover are provided with installation through holes, and the central axes of the two installation through holes coincide; A first through hole is opened on the clutch base, and the clutch base is installed in the upper cavity of the clutch bottom cover, and the central axis of the first through hole coincides with the central axis of the installation through hole; The clutch transmission part is arranged on the clutch base and can rotate at a certain angle on the clutch base under the action of an external force. The clutch transmission part includes a clutch transmission film, and a ring is arranged on the front part of the clutch transmission film. shaped protrusion so that a clutch inner chamber is formed at its front part, a clutch locking gap is provided at the bottom of the clutch transmission film, a second through hole is provided at the middle part of the clutch transmission film, and the center of the second through hole The axis coincides with the central axis of the installation through hole; The clutch transmission component locking device is installed in the inner cavity of the lower part of the clutch bottom cover, which includes an electronic driving structure and a clutch transmission locking structure, and the clutch transmission locking structure can be moved upwards under the control of the electronic driving structure. Stretch out and fall into the clutch locking notch to limit the rotation of the clutch transmission parts, or retract downward to escape from the clutch locking notch; The torsion spring is arranged on the clutch base and connected with the clutch transmission part, and its torsion acts on the clutch transmission part so that the clutch transmission part has a tendency to maintain the initial state; The rotating shaft transmission part is built in the clutch inner cavity at the front end of the clutch transmission part, and can rotate in the clutch inner cavity under the action of an external force. There is a limited space between the rear of the rotating shaft transmission part and the rear end of the clutch inner cavity. The position linkage structure links the shaft transmission part and the clutch transmission part into one; The front end of the rotating shaft is connected and fixed to the rotating shaft end of the front handle of the door lock, and the rear end of the rotating shaft is snapped backward and fixed to the front part of the rotating shaft transmission part; The rear handle linkage part includes a rear handle linkage shaft, the rear end of the rear handle linkage shaft is connected and fixed with the shaft end of the rear handle of the door lock, and its front end passes through the clutch bottom cover in sequence. After installing the through hole, the first through hole and the second through hole, they are connected and fixed behind the rotating shaft transmission part to link with the rotating shaft transmission part. A pusher is fixedly connected to the rear end of the rear handle linkage shaft, and the pusher The rear handle linkage shaft can be pushed forward to move forward and push the rotating shaft transmission part built in the clutch inner cavity to the front end of the clutch inner cavity to break away from the limitation of the limit linkage structure. 2. A rear clutch electronic door lock according to claim 1, wherein a guide frame extends backward on the clutch base, and a guide cavity is opened inside the guide frame, and the guide cavity The front and rear respectively pass through the front and rear ends of the guide frame. The guide frame passes through the installation hole of the clutch bottom cover and is fixed on the clutch bottom cover. The rear handle linkage shaft is built in the guide cavity and can move forward and backward along the guide cavity. , in the guide cavity, there is a travel limit device that prevents the rear handle linkage shaft from moving backwards completely out of the guide cavity, prevents the rear handle linkage shaft from moving forward, and pushes the rotating shaft transmission parts out of the clutch inner cavity completely. 3 . The rear clutch electronic door lock according to claim 2 , characterized in that, at the rear of the rotating shaft transmission part, there is provided a second clamping part that is clamped and fixed with the front end of the rear handle linkage shaft. 4 . 4. A rear clutch electronic door lock according to claim 3, characterized in that, the limit linkage structure includes a limit ring arranged at the rear of the rotating shaft transmission part, and a limit ring arranged at the rear end of the clutch inner chamber. The limiting protrusion, the limiting ring is a ring body provided with a limiting notch. 5 . The rear clutch electronic door lock according to claim 4 , wherein the clutch transmission locking structure is a deadbolt piece that can be inserted into the clutch locking notch. 6 .