CN218815767U - Door lock - Google Patents

Abstract

The utility model relates to a door lock, it has lock face casing and handle subassembly, and the lock face casing has the through-hole that is used for installing the handle subassembly, and the handle subassembly cup joints behind the sealing washer and installs in the through-hole with can rotating, and a plurality of seal lips have been arranged along its thickness direction to the inner wall of sealing washer, and seal lip radially inwards extends and forms from the inner wall of sealing washer, and the radius of the free end of seal lip is less than handle subassembly and the outer diameter of cup jointing the sealing washer part have deformation space between seal lip and the seal lip, and back in the through-hole is installed to the handle subassembly, and the free end of seal lip is out of shape and is supported and only in handle subassembly and sealing washer connected portion mutually. The utility model has the advantages of through reducing the area of contact between sealing washer and the handle subassembly, and through the mode that sets up a plurality of seal lips, can realize good sealed effect, do not influence the rotation of handle subassembly again.

Description

Door lock

Technical Field

The utility model relates to a door lock.

Background

The intelligent door lock in the market at present has a wide application range, and in some occasions, such as outdoor or bathroom doors, the door lock needs to operate in an environment full of moisture, but a waterproof structure is not arranged between a handle installed on the door lock and a door lock panel, or a common sealing ring is adopted for sealing and isolating, so that the effect is poor, and particularly when the common sealing ring is adopted, the rotation of the handle can be blocked by the sealing ring in the rotating process of the handle. Therefore, the existing structure needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, waterproof dustproof effectual lock.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the lock has a jam face casing and a handle subassembly, and the jam face casing has the through-hole that is used for installing the handle subassembly, and the handle subassembly cup joints behind the sealing washer and can install in the through-hole with rotating, and a plurality of seal lips of having arranged along its thickness direction of the inner wall of sealing washer, and the seal lip radially inwards extends and forms from the inner wall of sealing washer, and the radius of the free end of seal lip is less than handle subassembly and the outer diameter of cup jointing the sealing washer part have deformation space between seal lip and the seal lip, and back in the through-hole was installed to the handle subassembly, the free end of seal lip warp to end on handle subassembly and sealing washer looks connecting portion.

The utility model has the advantages of through reducing the area of contact between sealing washer and the handle subassembly, and through the mode that sets up a plurality of seal lips, can realize good sealed effect, do not influence the rotation of handle subassembly again.

Drawings

Fig. 1 is a schematic perspective view of a door lock according to an embodiment of the present invention.

Fig. 2 is a schematic view of the door lock in a partially exploded state according to an embodiment of the present invention.

Fig. 3 is a schematic sectional view of the door lock according to the embodiment of the present invention.

Fig. 4 is a schematic view of the enlarged structure at I in fig. 3.

Detailed Description

As shown in fig. 1 and fig. 2, a door lock has a lock face housing 1 and a handle assembly 2, the lock face housing 1 has a through hole 11 for installing the handle assembly 2, and the handle assembly 2 is rotatably installed in the through hole 11 after being sleeved with a seal ring 3.

As shown in fig. 3 and 4, a plurality of sealing lips 31 are arranged on the inner wall of the sealing ring 3 along the thickness direction, the sealing lips 31 are formed by extending the inner wall of the sealing ring 3 radially inwards, the radius of the free end of each sealing lip 31 is smaller than the outer diameter of the handle assembly 2 and the portion sleeved with the sealing ring 3, a deformation space 32 is formed between each sealing lip 31 and each sealing lip 31, and after the handle assembly 2 is installed in the through hole 11, the free end of each sealing lip 31 deforms and abuts against the connecting portion between the handle assembly 2 and the sealing ring 3, so that a good sealing effect can be achieved without affecting the rotation of the handle assembly 2 by arranging the plurality of sealing lips 31.

Specifically, the inner wall of the through hole 11 of the lock face shell 1 is provided with a clamping groove 12, and a retainer ring 4 is sleeved on the handle assembly 2 and is connected with the clamping groove 12 in a clamping mode to limit the sealing ring 3 to slide along the axial direction.

More specifically, the outer wall of the seal ring 3 is in a shape of a horn gradually enlarged, the retainer ring 4 has a side wall 41 in a shape of a horn gradually enlarged, a stopper ring 42 is formed at a smaller end of the side wall 41, a snap-in portion 43 is formed at a larger end of the side wall 41, the snap-in portion 43 is snapped in the snap groove 12, and the stopper ring 42 abuts on the outer end face of the seal ring 3.

The stop ring 42 has a gap d with the handle assembly 2 and the portion sleeved with the stop ring 4, so as to prevent the stop ring 4 from contacting the handle assembly 2 to increase the resistance to rotation of the handle assembly 2.

The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the protection scope of the present invention.

Claims (4)

1. The door lock has a lock face casing and a handle assembly, and the lock face casing has the through-hole that is used for installing the handle assembly, and the handle assembly cup joints behind the sealing washer and can install in the through-hole with rotating, and its characterized in that, a plurality of seal lips of having arranged along its thickness direction of the inner wall of sealing washer, and the seal lip radially inwards extends and forms from the inner wall of sealing washer, and the radius of the free end of seal lip is less than handle assembly and the outer diameter of cup jointing the sealing washer part have deformation space between seal lip and the seal lip, and after the handle assembly was installed in the through-hole, the free end of seal lip warp and supports and ends on handle assembly and sealing washer looks connecting portion.

2. The door lock of claim 1, wherein the locking surface housing is provided with a locking groove on an inner wall of the through hole, and a retainer ring is sleeved on the handle assembly and is locked with the locking groove to limit the sealing ring to slide along the axial direction.

3. The door lock according to claim 2, wherein the outer wall of the seal ring is flared in a gradually increasing manner, the retainer ring has a flared sidewall in a gradually increasing manner, a retainer ring is formed at a smaller end of the sidewall, a snap-in portion is formed at a larger end of the sidewall, the snap-in portion is snapped into the snap groove, and the retainer ring abuts against the outer end face of the seal ring.

4. The door lock of claim 3, wherein the retainer has a gap between the handle assembly and a portion of the retainer ring.

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