CN107939158A - Novel door lock - Google Patents

Abstract

The invention discloses a novel door lock, which comprises an outer handle assembly, an inner handle assembly, a clutch and a safety mechanism, wherein the inner handle assembly comprises a ball through, the safety mechanism comprises a brake rod and a driving device, the driving device comprises a guide groove axially arranged on the side surface of the ball through, a sleeve is arranged in the ball through, an inclined groove axially arranged is arranged on the side surface of the sleeve, a brake rod sleeve hole matched with the brake rod is arranged on the end surface of the sleeve, a positioning clamping groove is arranged at the bottom end of the inclined groove, a spring and a driving piece are sequentially arranged in the sleeve, a sliding positioning tongue arranged on the circumferential surface of the driving piece is arranged on the driving piece, and when the driving piece is pressed, the sliding positioning tongue enables the driving piece to slide along the guide groove and enables the sleeve to rotate along the inclined groove and realize clamping positioning at the positioning clamping groove, so that the door lock has the, the potential safety hazard is eliminated.

Description

A new type of door lock

[technical field]

The invention relates to a novel door lock.

[Background technique]

At present, most of the door locks are three-bar door locks, including outer components, inner components, insurance mechanisms and clutches. Cover, ball pass, drive frame and inner handle; the inner baffle is embedded in the inner block cover, the ball pass is rotatably matched with the inner baffle plate and the inner block cover, the drive frame is set at one end of the ball pass, and the inner handle is set at the ball pass the other end; as shown in Figure 1, when locking is required, the user presses the driving part in the driving device, and the driving part rotates at a certain angle under the interaction of the sliding positioning tongue and the inclined groove, so that the brake lever rotates accordingly And press the locking tab into the locking slot with the driving part to lock the safety mechanism. When it needs to be unlocked, just reverse the driving device. There is a problem: when the driver is pressed to lock, during the process of pressing the driver, the driver rotates between the sliding positioning tongue and the inclined groove, and the locking action is not completed until the sliding positioning tongue snaps into the positioning slot, but due to the drive The sliding of the sliding part during the pressing process makes it difficult for the sliding positioning tongue to snap into the positioning slot, resulting in the inability to unlock and posing a safety hazard; when the friction between the finger and the pressing part on the other side is too large, it is not convenient for the rotation of the driving part to realize the lock. combine.

[Content of the invention]

The invention overcomes the disadvantages of the above-mentioned technologies, and provides a novel door lock, which has the characteristics of convenient locking and safety, and eliminates potential safety hazards.

To achieve the above object, the present invention adopts the following technical solutions:

A new type of door lock, including an outer handle assembly, an inner handle assembly, a clutch arranged between the outer handle assembly and the inner handle assembly, and a safety mechanism arranged on the clutch, the inner handle assembly includes an inner The baffle plate, the inner cover, the ball pass, the transmission frame and the inner handle. The clutch includes the transmission square pass and the sub-clutch connected with the transmission square pass. The brake lever and the driving device inside, the driving device includes a guide groove arranged axially on the side of the ball pass, a bushing is arranged inside the ball pass, and an axially arranged guide groove is arranged on the side of the bushing An inclined groove, the end surface of the sleeve is provided with a brake rod sleeve hole matching with the brake lever, the bottom of the inclined groove is provided with a positioning slot, and the sleeve is provided with a spring and a driving part in sequence, so that The driving part is provided with a sliding positioning tongue arranged on the circumferential surface of the driving part. When the driving part is pressed, the sliding positioning tongue makes the driving part slide along the guide groove and the sleeve rotates along the inclined groove and is locked in the positioning slot. to achieve snap-in positioning.

The brake lever is provided with a locking piece between the sub-clutch and the outer handle assembly, and the locking piece is provided with a brake lever hole and a locking lug sleeved on the brake lever. The outer handle assembly is provided with a locking groove that cooperates with the locking tab.

The inner baffle is embedded in the inner baffle, the ball pass is rotatably matched with the inner baffle and the inner baffle, the transmission frame is arranged at one end of the ball pass, and the inner handle is arranged at the other end of the ball pass.

The inner handle includes a base and a handle. One end of the base is provided with a connection hole, and the other end is provided with a guide hole for a locking member. The ball is inserted into the connection hole on the base. The locking member and the base The guide hole of the locking member on the seat is slidingly fitted.

The beneficial effects of the present invention are:

In the present invention, a sleeve is arranged in the ball, and both the inclined groove and the positioning slot are arranged on the sleeve, and the guide groove is arranged on the ball to limit the longitudinal movement of the driving part, so that when the driving part is pressed, the driving part only moves longitudinally. Movement, and make the casing rotate in the ball, so as to realize the locking of the insurance mechanism, which is easier to achieve locking and eliminates potential safety hazards.

[Description of drawings]

Fig. 1 is a schematic diagram of the prior art;

Fig. 2 is one of exploded views of the present invention;

Fig. 3 is the second exploded view of the present invention;

Fig. 4 is the fourth exploded view of the present invention.

[Detailed ways]

A further detailed description will be made below in conjunction with the accompanying drawings and embodiments of the present invention:

As shown in Figure 2-4, a new type of door lock includes an outer handle assembly 1, an inner handle assembly 2, a clutch 3 arranged between the outer handle assembly 1 and the inner handle assembly 2, and a clutch 3 arranged between the clutch 3 on the safety mechanism 4, the inner handle assembly 2 includes the inner baffle 21, the inner cover 22, the ball pass 23, the transmission frame 24 and the inner handle 25, and the clutch 3 includes the transmission square pass 31 and the transmission The sub-clutch 32 connected by the square pass 31, the safety mechanism 4 includes a brake lever 41 and a drive device 42 arranged in the transmission square pass 31 and the sub-clutch 32, and the drive device 42 is included on the side of the ball pass 23 A guide groove 231 arranged axially on the top, a sleeve 421 is provided inside the ball pass 23, an inclined groove 422 is provided on the side of the sleeve 421, and an inclined groove 422 is provided on the end surface of the sleeve 421. The brake rod casing hole 423 matched with the brake rod 41, the bottom end of the inclined groove 422 is provided with a positioning slot 424, and the sleeve 421 is sequentially provided with a spring 425 and a driver 426, and the driver 426 There is a sliding positioning tongue 427 arranged on the circumferential surface of the driving member 426. The sliding positioning tongue 427 makes the driving member 426 slide along the guide groove 231 and rotate the sleeve 421 along the inclined groove 422 when the driving member 426 is pressed. And the locking and positioning are realized at the positioning slot 424 .

The inner baffle 21 is embedded in the inner baffle 22, and the ball pass 23 is rotatably matched with the inner baffle 21 and the inner baffle 22. The transmission frame 24 is arranged at one end of the ball pass 23, and the inner handle 25 Be arranged on the other end of ball pass 23.

The brake lever 41 is provided with a locking member 5 between the sub-clutch 32 and the outer handle assembly 1, and the locking member 5 is provided with a brake lever hole 51 sleeved on the brake lever 41 and the locking tab 52 , the outer handle assembly 1 is provided with a locking groove 11 that cooperates with the locking tab 52 .

The working principle is as follows: when the user presses the driving part 426, the sliding positioning tongue 427 on the driving part 426 slides longitudinally under the action of the guide groove 231 on the ball pass 423, and at the same time, the inclined groove 422 arranged on the sleeve 421 slides in the sliding positioning tongue. Under the action of 427, the sleeve 421 is rotated in the ball pass 423 until the sliding positioning tongue 427 snaps into the positioning slot 424 to realize locking; at the same time, under the rotation of the sleeve 421, the brake rod hole 423 on the sleeve 421 Drive the brake lever 41 to rotate, and during the pressing process of the driver 426, the sleeve 421 drives the brake lever 41 to move longitudinally. When the sliding positioning tongue 427 snaps into the positioning slot 424, the brake lever 41 drives the locking member The locking tab 52 on the 5 is also locked into the locking groove 11 of the outer handle assembly 1 with the rotation of the sleeve 421 to complete the locking, and the driving part 426 can only realize the locking without rotating, which improves the locking efficiency. Simplicity, eliminating potential safety hazards.

When unlocking, no matter clockwise or counterclockwise, turn the inner handle 25, at this time, the sliding positioning tongue 427 slides away from the positioning slot 424, and slides along with the inclined groove 422, and the spring 425 resets the driving member 426, and simultaneously locks The locking tab 52 on the part 5 breaks away from the locking groove 11 on the outer handle assembly 1 to realize unlocking, and the door can be opened by turning the handle.

The inner handle 25 includes a base 251 and a handle 252, one end of the base 251 is provided with a connection hole 253, and the other end is provided with a locking member guide hole 254, and the ball pass 23 is inserted into the connection hole 253 on the base 251 Inside, the locking member 5 is slidingly matched with the locking member guide hole 254 on the base 251 .

Claims (4)

1. A new type of door lock, comprising an outer handle assembly (1), an inner handle assembly (2), and a clutch (3) arranged between the outer handle assembly (1) and the inner handle assembly (2) , the safety mechanism (4) that is arranged on the clutch (3), the described inner handle assembly (2) includes inner baffle plate (21), inner baffle cover (22), ball pass (23), transmission frame (24) and the inner handle (25), the clutch (3) includes a transmission square pass (31) and a sub-clutch (32) connected with the transmission square pass (31), and the safety mechanism (4) includes a The brake lever (41) and the driving device (42) in the square connection (31), the sub-clutch (32), are characterized in that: the driving device (42) includes The set guide groove (231), the sleeve (421) is arranged inside the ball (23), the side of the sleeve (421) is provided with an inclined groove (422) arranged in the axial direction, the sleeve The end face of (421) is provided with the brake rod casing hole (423) that cooperates with the brake rod (41), and the bottom of the inclined groove (422) is provided with a positioning slot (424), and the sleeve (421 ) is provided with a spring (425) and a driver (426) in sequence, and the driver (426) is provided with a sliding positioning tongue (427) arranged on the circumferential surface of the driver (426), and the sliding positioning When the driving part (426) is pressed, the tongue (427) makes the driving part (426) slide along the guide groove (231) and makes the sleeve pipe (421) rotate along the inclined groove (422) and realizes at the positioning slot (424). snap positioning. 2. A new type of door lock according to claim 1, characterized in that: the brake lever (41) is provided with a locking member between the sub-clutch member (32) and the outer handle assembly (1) (5), the locking member (5) is provided with a brake lever hole (51) and a locking tab (52) sleeved on the brake lever (41), and the outer handle assembly (1 ) is provided with a locking groove (11) that cooperates with the locking tab (52). 3. A new type of door lock according to claim 1, characterized in that: the inner baffle (21) is embedded in the inner baffle (22), and the ball (23) is connected to the inner baffle (21) , The inner cover (22) is rotated and matched, the transmission frame (24) is arranged on one end of the ball pass (23), and the inner handle (25) is arranged on the other end of the ball pass (23). 4. A new type of door lock according to claim 1, characterized in that: the inner handle (25) includes a base (251) and a handle (252), and one end of the base (251) is provided with a connecting hole (253), and the other end is provided with a locking member guide hole (254), the ball pass (23) is inserted into the connecting hole (253) on the base (251), and the locking member (5) and the base The locking member guide hole (254) on (251) is sliding fit.