CN113513211B

CN113513211B - High-reliability door lock and electrical equipment

Info

Publication number: CN113513211B
Application number: CN202110516189.XA
Authority: CN
Inventors: 郑博龙
Original assignee: Shenlong Electric Co ltd
Current assignee: Shenlong Electric Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2024-09-20
Anticipated expiration: 2041-05-12
Also published as: CN113513211A

Abstract

A high reliability door lock and an electrical apparatus including a door panel, and a high reliability door lock. And the door plate is provided with a mounting hole. The high reliability door lock includes a housing and an abutment assembly. The housing includes an upper housing and a lower housing. The propping assembly comprises a avoidance groove, an elastic propping head and a propping piece. When the propping piece is in a free state, the propping piece is positioned between the elastic propping head and the avoidance groove so that the elastic propping head is rigidly propped against the side wall of the mounting hole. When the abutting piece is pressed, the abutting piece is pulled out from between the elastic abutting head and the avoidance groove so that the elastic abutting head abuts against the side wall of the mounting hole elastically. The door lock with high reliability is installed on the door plate without a fastener, and meanwhile, due to the action of the elastic butting head, the door lock can be safely and reliably installed on the door plate.

Description

High-reliability door lock and electrical equipment

Technical Field

The invention relates to the technical field of door lock installation, in particular to a high-reliability door lock and electrical equipment.

Background

Currently, in electric devices such as washing machines, a door lock is often required to lock the door to the main body of the electric device. In the prior art, door locks are provided with door hook holes, and the door locks are mounted on panels of electrical equipment. Thus, when the latch hook mounted on the door of the electrical equipment is inserted into the door hook hole, the latch mechanism in the door lock can lock the latch hook on the door of the electrical equipment, thereby locking the door lock of the electrical equipment on the panel of the electrical equipment.

However, in the prior art, the door lock is usually fixed on the panel by a fastener such as a screw, which not only damages the panel, but also uses a filler such as putty to smooth after using the screw, and then paints the paint, and at the same time, the installation cost and the installation time are increased, which is obviously unfavorable for the reduction of the cost and the improvement of the quality of the electrical equipment.

Disclosure of Invention

In view of the above, the present invention provides a high-reliability door lock and an electrical apparatus that are reliable in installation and easy to install and detach, to solve the above-described problems.

A high reliability door lock is mounted on a door panel, and the door panel is provided with a mounting hole. The high-reliability door lock comprises a shell and an abutting component arranged on the shell. The housing includes an upper housing and a lower housing coupled to the upper housing. The propping assembly comprises a avoidance groove arranged on the upper shell, an elastic propping head arranged on the lower shell and a propping piece arranged in the shell in a sliding manner. When the propping piece is in a free state, the propping piece is positioned between the elastic propping head and the avoidance groove, and the elastic propping head stretches out of the upper shell so that the elastic propping head is rigidly propped against the side wall of the mounting hole. When the propping piece is pressed, the propping piece is pulled out from between the elastic propping head and the avoidance groove, so that the elastic propping head is elastically propped against the side wall of the mounting hole and is in clearance arrangement with the avoidance groove.

Further, the high-reliability door lock further comprises a mounting part arranged on the shell, the mounting part is arranged on the upper shell and comprises a buckling body, a first clamping edge arranged on one side of the buckling body, and a second clamping edge arranged on the other side of the buckling body, wherein the first clamping edge extends out of the side wall of the upper shell and is arranged at intervals with the upper shell, and the second clamping edge is arranged at intervals with the upper shell.

Further, the maximum cross-sectional area of the retaining member is greater than the area of the mounting hole.

Further, the mounting portion further includes a connecting neck connecting the retaining member and the upper housing, and a cross-sectional area of the connecting neck is smaller than an area of the mounting hole.

Further, when the abutment member is located between the elastic abutment head and the avoidance groove, the maximum length formed by the elastic abutment head, the abutment member and the connecting neck is equal to the length of the mounting hole.

Further, the first clamping edge further comprises a yielding space, the yielding space is used for accommodating the end part of the propping piece, and when the upper shell and the lower shell are connected together, the end parts of the propping piece and the elastic propping head are inserted into the yielding space.

Further, the propping component further comprises an assembly groove arranged in the upper shell, a pull rod arranged in the assembly groove, and an elastic piece arranged between the assembly groove and the pull rod, wherein the propping piece is arranged on the pull rod.

Further, when the pull rod is pressed, the abutting piece is hidden in the assembly groove and is moved out of the avoidance groove.

Further, when the pull rod is in a free state, the abutting piece is accommodated in the avoidance groove so as to be clamped between the elastic abutting head and the avoidance groove.

An electrical appliance comprising a door panel, and a high reliability door lock as described above, the door panel comprising a mounting hole in which the high reliability door lock is mounted.

Compared with the prior art, the high-reliability door lock provided by the invention has the advantages that the avoidance groove is formed in the upper shell of the shell, the elastic propping head is arranged on the lower shell, and the propping piece is arranged between the avoidance groove and the elastic propping head. When the door lock is mounted on the door plate, a user pushes or withdraws the pushing piece, the pushing piece is pulled out from between the elastic pushing head and the avoidance groove, so that when a mounting hole of the door plate pushes the elastic pushing head, the elastic pushing head is retracted into the avoidance groove, the size formed by the elastic pushing head and the mounting part is reduced, the door plate is enabled to be sleeved into the mounting part easily, then the pushing piece is released, the low pushing piece is inserted between the elastic pushing head and the avoidance groove, and then the elastic pushing head is rigidly pushed against the side wall of the mounting hole, so that the purpose of fixing the relative position between the door lock and the door plate is achieved. When the door lock needs to be detached, the door lock can be detached from the door plate only by executing the actions in the opposite action flow. The door lock is mounted on the door plate without a fastener, and the door lock can be safely and reliably mounted on the door plate due to the elastic butting head.

Drawings

Fig. 1 is an exploded view of a high reliability door lock and an electrical device according to the present invention.

Fig. 2 is a schematic structural view of an upper case of the high-reliability door lock and the electric device of fig. 1.

Fig. 3 is a schematic cross-sectional structure of the high-reliability door lock and the electrical device of fig. 1.

Fig. 4 is a state diagram of the high reliability door lock and door panel of fig. 1 when installed.

Detailed Description

Specific embodiments of the present invention are described in further detail below. It should be understood that the description herein of the embodiments of the invention is not intended to limit the scope of the invention.

Fig. 1 to 4 are schematic structural views of a high-reliability door lock and an electrical device according to the present invention. The electrical apparatus includes a door panel 10, and a high reliability door lock 20 mounted on the door panel 10. The electric device can be a washing machine, a refrigerator, a freezer and other devices with a door opening and closing function. In addition, it is conceivable that the electrical apparatus further includes other functional modules, such as a functional frame, an electrical connection assembly, various electrical apparatuses, etc., which are known to those skilled in the art, and will not be described herein.

The door panel 10 may be a component of an electrical apparatus, but in the present embodiment, only a part of the door panel 10 is shown for the purpose of illustrating the structure of the high reliability door lock 20 and the mounting structure between the high reliability door lock 20 and the door panel 10. The door panel 10 may be made of a metal plate and is provided with a mounting hole 11. The thickness of the metal plate may be set according to actual needs and will not be described in detail herein. The shape of the mounting hole 11 may be designed according to practical needs, and in this embodiment, the mounting hole 11 is a rectangular hole, and its size is also designed according to practical needs, such as the size of the high reliability door lock 20.

The high reliability door lock 20 includes a housing 21, a mounting portion 22 provided on the housing 21, and a pressing member 23 provided in the housing 21. It is conceivable that the high reliability door lock 20 further includes other functional modules, such as a door hook mechanism, an electric control device, etc., which are conventional and will not be described herein. The housing 21 includes an upper housing 211, and a lower housing 212 coupled to the upper housing 211. The upper housing 211 and the lower housing 212 may be connected by a fastener or by a fastening connection. In this embodiment, the upper housing 211 and the lower housing 212 are connected by fastening. The upper housing 211 and the lower housing 212 form a cavity for receiving various functional components, including the abutment component 23. The functional components housed in the housing 21 may include, for example, sensors, etc., by which information about the door opening or closing is transmitted to the processor of the electrical device for subsequent actions, such as the start of the motor.

The mounting portion 22 includes a retaining member 221, a connecting neck 222 connecting the retaining member 221 and the upper housing 211, a first engaging edge 223 disposed on one side of the retaining member 221, and a second engaging edge 224 disposed on the other side of the retaining member 221.

The shape of the retaining member 221 is the same as the shape of the mounting hole 11, i.e., the cross section is rectangular. Meanwhile, in order to insert the catching body 221 into the mounting hole 11 and sandwich the door panel 10 between the mounting portion 22 and the housing 21, the length of the catching body 221 is greater than the length of the mounting hole 11, and the width of the catching body 221 is equal to or less than the width of the mounting hole 11. In addition, the retaining member 211 has a hollow structure, so as to facilitate the insertion of the door hook to be engaged with the latch hook mechanism of the door lock.

The connecting neck 222 is inserted into the mounting hole 11, and the connecting neck 222 is preferably equal to or smaller than the mounting hole 11 in width, so that the positional relationship between the connecting neck 222 and the mounting hole 11 can be fixed after the positional relationship between the connecting neck 222 and the mounting hole 11 is fixed in the longitudinal direction of the connecting neck 222, even if the connecting neck 222 and the mounting hole 11 are fixed to each other, the connecting neck 222 is smaller than the mounting hole 11 in length, and the connecting neck 222 is preferably equal to or smaller than the mounting hole 11 in width. As to how to fix the positional relationship of the connecting neck 222 and the mounting hole 11 in the longitudinal direction of the connecting neck 222, the following description will be made in connection with the abutting assembly 23.

The first and second clamping edges 223 and 224 are respectively disposed at two sides of the buckling body 221 along the length direction of the connecting neck 222. The first catch 223 extends from a side wall of the upper housing 211 to form a cantilever. The first catch 223 in the form of a cantilever may be inserted obliquely into the mounting hole 11 of the door panel 10, as shown in fig. 4. The first clamping edge 223 is spaced from the upper housing 211, and the minimum distance between the first clamping edge 223 and the upper housing 211 is equal to the thickness of the door panel 10, so that the door panel 10 can be clamped between the first clamping edge 223 and the upper housing 211. The second clamping edge 224 also extends from a side wall of the upper housing 211 and is disposed on an opposite side of the retaining member 221. The second clamping edge 224 is spaced from the upper housing 211, that is, the minimum distance between the second clamping edge 224 and the upper housing 211 is also equal to the thickness of the door panel 10, so that the door panel 10 is clamped in a gap formed between the second clamping edge 224 and the upper housing 211 during installation. Of course, the maximum distance between the first and second clamping edges 223, 224 should be greater than the length of the mounting hole 11, so that the maximum cross-sectional area of the retaining member 221 is greater than the area of the mounting hole 11, so as to clamp the door panel 10 between the first and second clamping edges 223, 224 and the upper housing 211. The first clamping edge 223 further includes a yielding space 225, and the yielding space 225 is used for accommodating the ends of the abutting piece 234 and the elastic abutting head 235, i.e. when the upper housing 211 and the lower housing 212 are connected together, the ends of the abutting piece 234 and the elastic abutting head 235 are inserted into the yielding space 235. Because the thickness of the door panel 10 is smaller, in order to ensure that the door panel 10 can abut against the elastic abutment 235, the door panel 10 is prevented from being inserted between the elastic abutment 235 and the first clamping edge 223, thereby resulting in failure of fixing the door panel 10 to the high-reliability door lock 20.

The abutment assembly 23 includes a relief groove 231 provided on the upper housing 211, an assembly groove 232 provided on the upper housing 211, a tension rod 233 inserted in the assembly groove 232, an abutment member 234 provided on the tension rod 233, an elastic abutment head 235 provided on the lower housing 212, and a restoring elastic member 236 provided between the tension rod 233 and the assembly groove 232. The avoiding groove 231 is formed on the upper housing 211 and is located at a side close to the retaining member 221, specifically, at a side close to the first clamping edge 223. The depth of the avoidance groove 231 is smaller than the total thickness of the elastic propping head 235 and the propping piece 234 and is larger than the thickness of the elastic propping head 235, so that when the propping piece 234 is positioned between the elastic propping head 235 and the avoidance groove 231, the elastic propping head 235 is exposed or stretches out of the avoidance groove 231, at the moment, the length formed by the elastic propping head 235 and the connecting neck 222 is equal to the length of the mounting hole 11, and when the mounting hole 11 of the door panel 10 is sleeved on the elastic propping head 235 and the connecting neck 222, the length direction of the mounting hole 11 is limited by the lengths of the elastic propping head 235 and the connecting neck 222, and the width direction of the mounting hole 11 is limited by the width of the connecting neck 222, meanwhile, the door panel 10 is clamped between the first clamping edges 223 and 224 and the upper shell 211, so that the relative positions of the door panel 10 and the door lock 20 can be limited in the three-dimensional direction, and the purpose of fixed mounting is achieved. When the door panel 10 is pressed toward the second clamping edge 224, the elastic abutment member 234 is pulled out from between the elastic abutment member 235 and the avoiding groove 231, that is, the abutment member 234 is hidden in the assembling groove 232 and is removed from the avoiding groove 231, so that the elastic abutment member 235 can be pressed into the avoiding groove 231 under the action of external force, such as the abutment of the side wall of the mounting hole 11 of the door panel 10, and meanwhile, the length of the connecting neck 222 is smaller than the length of the mounting hole 11, so that the mounting portion 22 can be separated from the clamping connection with the mounting hole 11 of the door panel 10 when the door panel 10 is tilted again.

The assembly groove 232 is provided in the upper housing 211, and its extending direction is perpendicular to the depth direction of the escape groove 231. The assembly groove 232 is used to provide the tension rod 233, while one end of the assembly groove 232 is closed and the other end is opened for providing the restoring elastic member 236. The tension rod 233 is inserted from one end of the assembly groove 232 to abut against the other end of the assembly groove 232. Therefore, the structure and the size of the assembly groove 232 should be designed according to the structure and the size of the pull rod 233, and in this embodiment, the pull rod 233 has a plate-shaped structure, so that the assembly groove 232 has a groove shape. The assembling groove 232 and the avoiding groove 231 are arranged to cross each other, so that the avoiding groove 231 has a certain depth, and even if the pull rod 233 is inserted, the avoiding groove 231 has a certain depth.

The pull rod 233 is inserted into the assembly groove 232, and is used for enabling the abutting piece 234 to be inserted between the elastic abutting head 235 and the avoiding groove 231 or pulled out from between the elastic abutting head 235 and the avoiding groove 231 when the pull rod 233 is in a free state or pressed. It is conceivable that, in order to limit the position of the pull rod 233, the pull rod 233 is further provided with limiting means to avoid falling out or being pulled out when it is in a free state. In addition, since the upper and lower cases 211 and 212 are fastened together, the assembly groove 232 forms a closed space when the upper and lower cases 211 and 212 are assembled together, so that the tension rod 233 is accommodated in the assembly groove 232 and can move only to a certain extent, i.e., only along the length direction thereof.

The abutting piece 234 is provided on the draw rod 233 so as to be reciprocable with the draw rod 233. The dimension of the abutting piece 234 in the depth direction of the escape groove 231 should be strictly limited, that is, when the abutting piece 234 is inserted between the elastic abutting head 235 and the escape groove 231, the abutting piece 234, the elastic abutting head 235, and the connecting neck 222 form an overall length equivalent to the length of the mounting hole 11 to limit the position of the mounting hole 11 in the length direction thereof. Of course, when the door panel 10 is pressed against the second locking edge 224 after the abutting member 234 is pulled out from between the elastic abutting head 235 and the avoiding groove 231, the elastic abutting head 235 can be pressed into the avoiding groove 231 under the action of an external force, such as the abutting pressure of the side wall of the mounting hole 11 of the door panel 10. Also, therefore, the abutment member 234 is disposed on the tension rod 233 such that the abutment member 234 is inserted between the elastic abutment head 235 and the escape groove 231 when the tension rod 233 is in a free state, and such that the abutment member 234 is withdrawn from between the elastic abutment head 235 and the escape groove 231 when the tension rod 233 is pulled out or pressed.

The elastic abutment 235 is disposed on the lower housing 212, i.e., extends from the lower housing 212 toward the upper housing 211, and when the upper and lower housings 211, 212 are assembled together, the elastic abutment 235 is inserted into the escape groove 231. Since the elastic abutment 235 extends from the lower housing 212 to form a cantilever, the elastic abutment 235 has a certain elasticity. As described above, the size of the elastic abutment 235 should be the same as the size of the abutment 234, the size in the depth direction of the escape groove 231 should be strictly limited, and the specific size design thereof should be the same as the size design of the abutment 234, and will not be described again.

The restoring elastic member 236 is disposed between the tension rod 233 and the assembly groove 231, and may be disposed at either side, such as the left side or the right side, of the abutting member 234, so that the restoring elastic member 236 is restored to the original position after the tension rod 233 is pressed or pulled.

In the installation, the pull rod 233 is first pressed, the abutting piece 234 is pulled out from between the elastic abutting head 235 and the escape groove 231, and then the installation portion 22 is inclined with respect to the door panel 10 to be inserted into the installation hole 11 of the door panel 10. The door panel 10 is pressed against the elastic abutment 235 so as to be pressed into the avoidance groove 231, at this time, the door panel 10 can be sleeved on the connecting neck 222, at this time, the door panel 10 can be inserted between the second clamping edge 234 and the upper housing 211 by pulling the door panel 10, and then the pressing of the pull rod 233 is released, the abutment 234 is inserted between the elastic abutment 235 and the avoidance groove 231, so that the dimensions of the elastic abutment 235, the abutment 234 and the connecting neck 222 in the length direction are equivalent to the length of the mounting hole 11 of the door panel 10, and the positional relationship between the door panel 10 and the high-reliability door lock 20 in the length direction along the mounting hole 11 is limited. When the high reliability door lock 20 needs to be detached, the high reliability door lock 20 can be detached from the door panel 10 according to the reverse flow operation of the above-described installation flow.

Compared with the prior art, the high-reliability door lock provided by the invention is characterized in that the avoidance groove 231 is arranged on the upper shell 211 of the shell 10, the elastic propping head 235 is arranged on the lower shell 212, and the propping piece 234 is arranged between the avoidance groove 231 and the elastic propping head 235. When the high reliability door lock 20 is mounted on the door panel 10, the user pushes or withdraws the pushing member 234, so that the pushing member 234 is withdrawn from between the elastic pushing member 235 and the escape groove 231, and when the mounting hole 11 of the door panel 10 pushes the elastic pushing member 235, the elastic pushing member 235 is retracted into the escape groove 231, and the size formed by the elastic pushing member 235 and the mounting portion 22 is reduced, so that the door panel 10 is easily sleeved into the mounting portion 22, and then the pushing member 234 is released, the low pushing member 234 is inserted between the elastic pushing member 235 and the escape groove 231, and then the elastic pushing member 235 is rigidly pushed against the side wall of the mounting hole 11, thereby achieving the purpose of fixing the relative position between the high reliability door lock 20 and the door panel 11. When the door lock needs to be detached, the door lock can be detached from the door plate only by executing the actions in the opposite action flow. The high reliability door lock 20 is thus installed to the door panel 10 without a fastener, and the high reliability door lock 20 can be safely and reliably installed to the door panel 10 due to the elastic abutment 235.

The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.

Claims

1. A high reliability door lock, which is mounted on a door panel (10), said door panel (10) being provided with a mounting hole (11), characterized in that: the high-reliability door lock (20) comprises a shell (21) and an abutting component (23) arranged on the shell (21), wherein the shell (21) comprises an upper shell (211) and a lower shell (212) connected with the upper shell (211), the abutting component (23) comprises an avoidance groove (231) arranged on the upper shell (211), an elastic abutting head (235) arranged on the lower shell (212), and an abutting piece (234) arranged in the shell (21) in a sliding manner, when the abutting piece (234) is in a free state, the abutting piece (234) is positioned between the elastic abutting head (235) and the avoidance groove (231) and the elastic abutting head (235) stretches out of the upper shell (211) so that the elastic abutting head (235) is rigidly abutted against the side wall of the mounting hole (11), and when the abutting piece (234) is pressed, the abutting piece (235) is pressed by the elastic abutting head (235) and the elastic abutting head (231) is arranged between the elastic abutting head (231) and the avoidance groove (231);

The high-reliability door lock (20) further comprises a mounting part (22) arranged on the shell (21), the mounting part (22) is arranged on the upper shell (211) and comprises a retaining body (221), a first clamping edge (223) arranged on one side of the retaining body (221), and a second clamping edge (224) arranged on the other side of the retaining body (221), wherein the first clamping edge (223) extends out of the side wall of the upper shell (211) and is arranged at intervals with the upper shell (211), and the second clamping edge (224) is arranged at intervals with the upper shell (211);

The first clamping edge (223) further comprises a yielding space (225), the yielding space (225) is used for accommodating the end part of the propping piece (234), and when the upper shell (211) and the lower shell (212) are connected together, the end parts of the propping piece (234) and the elastic propping head (235) are inserted into the yielding space (225);

The abutting assembly (23) further comprises an assembling groove (232) arranged in the upper shell (211), a pull rod (233) arranged in the assembling groove (232), and an elastic piece (236) arranged between the assembling groove (232) and the pull rod (233), and the abutting piece (234) is arranged on the pull rod (233).

2. The high reliability door lock of claim 1, wherein: the maximum cross-sectional area of the abutment body (221) is greater than the area of the mounting hole (11).

3. The high reliability door lock of claim 2, wherein: the mounting part (22) further comprises a connecting neck (222) connecting the buckling body (221) and the upper shell (211), and the cross section area of the connecting neck (222) is smaller than the area of the mounting hole (11).

4. A high reliability door lock according to claim 3 wherein: when the propping piece (234) is positioned between the elastic propping head (235) and the avoidance groove (231), the maximum length formed by the elastic propping head (235), the propping piece (234) and the connecting neck (222) is equal to the length of the mounting hole (11).

5. The high reliability door lock of claim 1, wherein: when the pull rod (233) is pressed, the abutment member (234) is hidden in the assembly groove (232) and is removed from the escape groove (231).

6. The high reliability door lock of claim 1, wherein: when the pull rod (233) is in a free state, the abutting piece (234) is accommodated in the avoidance groove (231) so as to be clamped between the elastic abutting head (235) and the avoidance groove (231).

7. An electrical device, characterized by: the electrical device comprises a door panel (10) and a high reliability door lock (20) according to any of claims 1 to 6, said door panel (10) comprising a mounting hole (11), said high reliability door lock (20) being mounted in said mounting hole (11).