Door lock and electronic apparatus
The present application discloses a door lock, which may be implemented on a door panel of an electrical device such as a washing machine. The lock includes a housing that can be installed into the panel without hardware such as a mounting screw, eliminating a need to position a screw in the panel for mounting the lock. The lock housing may include a lock head that can move into or out of a groove formed as a recess into a clamping edge of the housing. Ramped surfaces and contact faces of the housing are provided that allow rotation of the housing during its installation into the panel, which force the lock head into the groove during the housing insertion into the panel and allow the lock head to restore by moving out of the groove when the housing is in an installed position, locking the housing in place.
1. A door lock, comprising:
a housing;
a door hook hole body provided on the housing, wherein the door hook hole body comprises a top, a first pair of oppositely provided sidewalls, and a second pair of oppositely provided sidewalls, and the first pair of oppositely provided sidewalls and the second pair of oppositely provided sidewalls are formed respectively by extending downward from a lower part of the top;
a pair of clamping edges comprising a first clamping edge and a second clamping edge, the pair of clamping edges extending outward respectively from the first pair of oppositely provided sidewalls from the top of the door hook hole body;
a groove formed by a recess extending into a u-shaped arrangement defined by the first clamping edge, and intersecting segments of a respective one of the door hook hole body sidewalls that are connected to the first clamping edge;
a lock head provided below the groove, wherein the lock head is capable of moving into or out of the groove respectively defining a retracted state and an extended state, wherein the lock head defines the extended state out of the groove by default when not subjected to an external force and defines the retracted state when subjected to a force that urges the lock head into the groove; and
wherein a pair of first contact faces and a pair of second contact faces are respectively formed by the housing extending from a plurality of outer sides of the second pair of oppositely provided sidewalls, the pair of second contact faces are respectively formed by a plurality of distal ends of the pair of first contact faces extending obliquely downward, and a pair of supporting parts are formed at a respective junction of the pair of first contact faces and the pair of second contact faces.
2. The door lock of claim 1 , wherein:
the pair of second contact faces are sloped faces extending downward from the pair of first contact faces, and acute angles are formed between the pair of second contact faces and the pair of first contact faces.
3. A door lock, comprising:
a housing;
a door hook hole body provided on the housing, wherein the door hook hole body comprises a top, a first pair of oppositely provided sidewalls, and a second pair of oppositely provided sidewalls, and the first pair of sidewalls and the second pair of sidewalls are formed respectively by extending downward from the lower part of the top;
a pair of clamping edges comprising a first clamping edge and a second clamping edge, the pair of clamping edges extending outward respectively from the first pair of sidewalls from the top of the door hook hole body;
a groove formed by upward recessing from the lower surface of the first clamping edge; and
a lock head provided below the groove, wherein the lock head is capable of moving into or out of the groove;
wherein a pair of first contact faces and a pair of second contact faces are respectively formed by the housing extending from the outer sides of the second pair of sidewalls, the pair of second contact faces are respectively formed by the distal ends of the pair of first contact faces extending obliquely downward, and a pair of supporting parts are formed at the junctions of the pair of first contact faces and the pair of second contact faces; and
wherein the pair of second contact faces are sloped faces extending downward from the pair of first contact faces, and acute angles are formed between the extended faces of the pair of second contact faces and the pair of first contact faces;
the door lock is installed in an installation hole of an installation panel through the door hook hole body, the installation hole has a pair of oppositely provided rims, the pair of oppositely provided rims comprise a first rim and a second rim, the first clamping edge of the door hook hole body is used for being installed on the first rim of the installation hole, and the second clamping edge of the door hook hole body is used for being installed on the second rim of the installation hole; and
during installation, when the lock head is hung on the first rim of the installation hole, the pair of second contact faces come into contact with the installation panel.
4. The door lock of claim 3 , wherein:
when the door hook hole body rotates around the supporting part, the lock head moves into the groove, and the pair of first contact faces come into contact with the installation panel; and
when the door hook hole body moves toward the second rim of the installation hole, the lock head moves out of the groove.
5. The door lock of claim 3 , wherein:
there is a predetermined distance between the lower surface of the second clamping edge and the pair of first contact faces, and the predetermined distance matches a thickness of the installation panel.
6. The door lock of claim 3 , further comprising:
a base installed below the housing; and
a cantilever, the cantilever is laterally provided on the base, and is on and outer side of the first sidewall of the first pair of sidewalls of the door hook hole body, with the lock head provided on an upper part of the cantilever.
7. The door lock of claim 6 , wherein:
a proximal end of the cantilever is connected to the base, the cantilever extends laterally from the base, a distal end of the cantilever is a free end, and the lock head is connected to a side of the cantilever adjacent to the distal end.
8. The door lock of claim 7 , wherein:
the distal end of the cantilever has an operating part, and by uplifting the operating part, the distal end of the cantilever moves upward, thereby driving the lock head to move upward.
9. The door lock of claim 7 , wherein:
the cantilever is elastic, and elastic deformation of the cantilever enables the lock head to move into the groove.
10. The door lock of claim 7 , wherein:
the lock head comprises an outwardly extending hook edge, and when the lock head is hung on the first rim of the installation hole, the outwardly extending hook edge catches the first rim of the installation hole.
11. The door lock of claim 10 , further comprising:
a guiding slot, wherein the first pair of sidewalls comprise a first sidewall and a second sidewall, the guiding slot is formed by the first sidewall recessing inward, and a guide rail extending downward is provided on the outer side of the guiding slot; and
the inner side of the cantilever is provided with a sliding slot extending downward;
wherein the sliding slot on the cantilever and the guide rail on the guiding slot slide with respect to one another for guiding the lock head to move up and down.
12. The door lock of claim 1 , wherein:
the groove has a width capable of accommodating the lock head.
13. The door lock of claim 1 , wherein:
the door hook hole body is rectangular;
the door hook hole body is provided with a door hook hole; and
the pair of clamping edges are provided respectively on two sides of the door hook hole body in a length direction.
14. An electrical device, comprising:
a panel provided with an installation hole,
a door lock configured for installation on the panel and including:
a housing;
a door hook hole body provided on the housing,
a pair of clamping edges extending outwardly from the door hook hole body;
a groove that is bound by a u-shaped arrangement and formed by upward recessing into one of the pair of clamping edges; and
a lock head provided with respect to the groove for moving into or out of the groove, wherein the lock is positioned out of the groove in a default resting state and in the groove when the lock head is urged toward the clamping edges;
a first pair of contact faces extending from the housing;
a second pair of contact faces extending from the housing;
a pair of supporting parts defined at respective junctions of the pair of first contact faces and the pair of second contact faces, wherein the pair of second contact faces extend downward and outward from their respective junctions with the pair of first contact faces at the pair of supporting parts; and
wherein:
the door hook hole body of the door lock is installed in the installation hole.
15. The electrical device of claim 14 , wherein: the electrical device is a washing machine.