CN113513211A

CN113513211A - High reliability lock and electrical equipment

Info

Publication number: CN113513211A
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: 2021-10-19

Abstract

A high-reliability door lock and electrical equipment are provided, wherein the electrical equipment comprises a door plate and the high-reliability door lock. The door plate is provided with a mounting hole. The high-reliability door lock comprises a shell and an abutting component. The housing includes an upper housing and a lower housing. The propping component comprises an avoiding groove, an elastic propping head and a propping piece. When the abutting piece is in a free state, the abutting piece is located between the elastic abutting head and the avoiding groove so that the elastic abutting head rigidly abuts against the side wall of the mounting hole. When the abutting piece is pressed, the abutting piece is drawn out from between the elastic abutting head and the avoiding groove, so that the elastic abutting head elastically abuts against the side wall of the mounting hole. The high-reliability door lock is installed on the door panel without a fastener, and simultaneously, due to the action of the elastic abutting head, the door lock can be safely and reliably installed on the door panel.

Description

High reliability 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

At present, in electric equipment such as a washing machine, a door lock is often required to lock a door on a main body of the electric equipment. In the prior art, door locks are provided with 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 appliance is inserted into the hook hole, the latch hook on the door of the electrical appliance can be latched by the latch mechanism in the door lock, thereby locking the door of the electrical appliance on the panel of the electrical appliance.

However, in the prior art, the door lock is usually fixed on the panel through fasteners such as screws, which not only damages the panel and causes the panel to be leveled by fillers such as putty and the like after the screws are used, and then the panel is painted, but also increases the installation cost and the installation time, which is obviously not favorable for reducing the cost and improving the quality of the electrical equipment.

Disclosure of Invention

In view of the above, the present invention provides a highly reliable door lock and an electrical apparatus, which are reliably installed and are convenient to install and disassemble, so as to solve the above problems.

A high-reliability door lock is arranged on a door plate, and a mounting hole is formed in the door plate. The high-reliability door lock comprises a shell and an abutting assembly arranged on the shell. The housing includes an upper housing and a lower housing connected to the upper housing. The propping assembly comprises an avoiding 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 abutting piece is in a free state, the abutting piece is located between the elastic abutting head and the avoiding groove, and the elastic abutting head extends out of the upper shell so that the elastic abutting head rigidly abuts against the side wall of the mounting hole. When the abutting piece is pressed, the abutting piece is drawn out from between the elastic abutting head and the avoiding groove, so that the elastic abutting head elastically abuts against the side wall of the mounting hole, and the elastic abutting head and the avoiding groove are arranged in a gap mode.

Further, high reliability lock still includes a setting installation department on the casing, the installation department sets up go up on the casing and include one and support the knot body, one sets up support the first card edge of knot body one side, and one sets up support the second card edge of knot body opposite side, first card edge extends go up the lateral wall of casing and with go up the casing interval and set up, the second card edge with go up the casing interval and set up.

Further, the maximum sectional area of the abutting-buckling body is larger than the area of the mounting hole.

Further, the installation part further comprises a connecting neck connected between the buckling resisting body and the upper shell, and the sectional area of the connecting neck is smaller than that of the installation hole.

Further, when the abutting piece is located between the elastic abutting head and the avoiding groove, the maximum length formed by the elastic abutting head, the abutting piece and the connecting neck is equal to the length of the mounting hole.

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

Furthermore, the abutting assembly further comprises an assembling groove arranged in the upper shell, a pull rod arranged in the assembling groove, and an elastic piece arranged between the assembling groove and the pull rod, and the abutting piece is arranged on the pull rod.

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

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

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

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 abutting head is arranged on the lower shell, and the abutting piece is arranged between the avoidance groove and the elastic abutting head. When the door lock is installed on a door plate, a user presses or pulls out the abutting piece to enable the abutting piece to be pulled out from between the elastic abutting head and the avoiding groove, so that when the installation hole of the door plate presses the elastic abutting head, the elastic abutting head retracts into the avoiding groove, the size formed by the elastic abutting head and the installation part is reduced, the door plate is easily sleeved into the installation part, then the abutting piece is released, the low abutting piece is inserted into the position between the elastic abutting head and the avoiding groove, and then the elastic abutting head rigidly abuts against the side wall of the installation hole, so that the aim of fixing the relative position between the door lock and the door plate is fulfilled. When the door lock needs to be disassembled, the door lock can be disassembled from the door plate only by executing the actions in the opposite action flow. Therefore, the door lock can be installed on the door panel without fasteners, and the door lock can be safely and reliably installed on the door panel due to the elastic butting head.

Drawings

Fig. 1 is an exploded schematic 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 provided in the high reliability door lock and the electric device of fig. 1.

Fig. 3 is a schematic cross-sectional view of the high reliability door lock and the electric device shown in fig. 1.

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

Detailed Description

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

As shown in fig. 1 to 4, it is a schematic structural diagram of a high-reliability door lock and an electrical device provided by the present invention. The electric apparatus includes a door panel 10, and a highly reliable door lock 20 mounted on the door panel 10. The electrical equipment can be equipment with an opening and closing door, such as a washing machine, a refrigerator, a freezer and the like. In addition, it is conceivable that the electrical apparatus further includes other functional modules, such as a functional frame, an electrical connection component, various electrical apparatuses, and the like, which are well known to those skilled in the art and will not be described herein again.

The door panel 10 may be a component of an electrical apparatus, but in the present embodiment, the door panel 10 is only partially shown for explaining the structure of the high reliability door lock 20 and the installation 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 can be set according to the actual requirements and will not be described in detail here. The shape of the mounting hole 11 can be designed according to actual needs, and in this embodiment, the mounting hole 11 is a rectangular hole, and the size of the rectangular hole is also designed according to actual 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 disposed on the housing 21, and an abutting member 23 disposed in the housing 21. It is contemplated that the high reliability door lock 20 may also include other functional modules, such as a door hook mechanism, an electric control device, etc., which are known in the art 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 snap-fit connection. In this embodiment, the upper housing 211 and the lower housing 212 are connected by a snap-fit manner. The upper housing 211 and the lower housing 212 form a cavity for receiving various functional components, including the abutting component 23. The functional components housed in the housing 21 may include, for example, a sensor or the like, which transmits information about the opening or closing of the door to a processor of the electrical device for subsequent operations, such as starting the operation of the motor.

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

The shape of the buckling body 221 is the same as that of the mounting hole 11, that is, the cross section is rectangular. Meanwhile, in order to insert the fastening body 221 into the mounting hole 11 and to sandwich the door panel 10 between the mounting portion 22 and the housing 21, the length of the fastening body 221 is greater than the length of the mounting hole 11, and the width of the fastening body 221 is equal to or less than the width of the mounting hole 11. In addition, the abutting-buckling body 211 is a hollow structure, so that the door hook can be inserted into and hooked with a latch hook mechanism of the door lock.

The connecting neck 222 is inserted into the mounting hole 11, and in order to achieve the purpose that the connecting neck 222 and the door panel 10 are fixed to each other, even though the length of the connecting neck 222 is smaller than the length of the mounting hole 11, but the width of the connecting neck 222 is equal to or smaller than the width of the mounting hole 11, it is preferable that the width of the connecting neck 222 is equal to the width of the mounting hole 11, 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 length direction of the connecting neck 222. How to fix the positional relationship between the connecting neck 222 and the mounting hole 11 along the length direction of the connecting neck 222 will be described below in conjunction with the abutting assembly 23.

The first and

second locking edges

223 and 224 are respectively disposed on two sides of the fastening body 221 along the length direction of the connecting neck 222. The first locking edge 223 extends from a side wall of the upper housing 211 to form a cantilever. The first catching edge 223 in the cantilever form may be obliquely inserted into the mounting hole 11 of the door panel 10, as shown in fig. 4. The first locking edge 223 is spaced apart from the upper housing 211, and a minimum distance between the first locking edge 223 and the upper housing 211 is equal to a thickness of the door panel 10, so that the door panel 10 can be clamped between the first locking edge 223 and the upper housing 211. The second locking edge 224 also extends from the sidewall of the upper housing 211 and is disposed at the opposite side of the buckling body 221. The second locking edge 224 is spaced from the upper housing 211, that is, the minimum distance between the second locking 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 the gap formed between the second locking edge 224 and the upper housing 211 during installation. Of course, the maximum distance between the first and

second locking edges

223 and 224 should be greater than the length of the mounting hole 11, so that the maximum cross-sectional area of the fastening body 221 is greater than the area of the mounting hole 11, so as to lock the door panel 10 between the first and

second locking edges

223 and 224 and the upper housing 211. The first locking edge 223 further includes a yielding space 225, the yielding space 225 is used for accommodating the end portions of the abutting member 234 and the elastic abutting head 235, that is, when the upper housing 211 and the lower housing 212 are connected together, the end portions of the abutting member 234 and the elastic abutting head 235 are inserted into the yielding space 235. Due to the small thickness of the door panel 10, in order to ensure that the door panel 10 can abut against the elastic abutting head 235, the door panel 10 is prevented from being inserted between the elastic abutting head 235 and the first locking edge 223, thereby causing the fixing failure of the door panel 10 and the high-reliability door lock 20.

The abutting assembly 23 includes an avoiding groove 231 disposed on the upper housing 211, an assembling groove 232 disposed on the upper housing 211, a pull rod 233 inserted into the assembling groove 232, an abutting member 234 disposed on the pull rod 233, an elastic abutting head 235 disposed on the lower housing 212, and a restoring elastic member 236 disposed between the pull rod 233 and the assembling groove 232. The avoiding groove 231 is formed on the upper housing 211 and is close to one side of the abutting-buckling body 221, specifically, one side of the abutting-buckling body is close to the first clamping edge 223. The depth of the avoiding groove 231 is smaller than the total thickness of the elastic abutting head 235 and the abutting member 234 and larger than the thickness of a single elastic abutting head 235, so that when the abutting member 234 is located between the elastic abutting head 235 and the avoiding groove 231, the elastic abutting head 235 is exposed or extended out of the avoiding groove 231, at this time, the length formed by the elastic abutting head 235 and the connecting neck 222 is equal to the length of the mounting hole 11, so that when the mounting hole 11 of the door panel 10 is sleeved on the elastic abutting head 235 and the connecting neck 222, the length direction of the mounting hole 11 is limited by the lengths of the elastic abutting head 235 and the connecting neck 222, the width direction of the mounting hole 11 is limited by the width of the connecting neck 222, and the door panel 10 is clamped between the first clamping edge 223, the second clamping edge 224 and the upper shell 211, so that the relative position of the door panel 10 and the high-reliability door lock 20 can be limited in the three-dimensional direction, the purpose of fixed installation is achieved. When the door panel 10 is detached, the abutting member 234 is pulled out from between the elastic abutting head 235 and the avoiding groove 231, that is, the abutting member 234 is hidden in the assembling groove 232 and is moved out from the avoiding groove 231, so that when the door panel 10 is pressed toward the second clamping edge 224, the elastic abutting head 235 can be pressed into the avoiding groove 231 under the action of external force, for example, under the pressing of the side wall of the installation hole 11 of the door panel 10, and meanwhile, because the length of the connecting neck 222 is smaller than that of the installation hole 11, the installation part 22 can be separated from the clamping connection with the installation hole 11 of the door panel 10 when the door panel 10 is tilted again.

The assembling groove 232 is disposed in the upper housing 211, and extends in a direction perpendicular to the depth direction of the avoiding groove 231. The assembling groove 232 is used for disposing the pull rod 233, and in order to dispose the restoring elastic member 236, one end of the assembling groove 232 is closed and the other end is opened. The pulling bar 233 is inserted from one end of the assembling groove 232 and abuts against the other end of the assembling groove 232. Therefore, the structure and size of the assembly groove 232 should be designed according to the structure and size of the pull rod 233, and in this embodiment, the pull rod 233 has a plate-shaped structure, so the assembly groove 232 has a groove shape. The assembling groove 232 and the avoiding groove 231 are disposed to cross each other, so that the avoiding groove 231 has a certain depth, and the avoiding groove 231 has a certain depth even though the pull rod 233 is inserted.

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 to be drawn out from between the elastic abutting head 235 and the avoiding groove 231 when the pull rod is in a free state or is pressed. It is conceivable that the pull rod 233 is further provided with a number of stopper members to prevent it from falling out or being pulled out when it is in a free state in order to restrict the position of the pull rod 233. In addition, since the upper housing 211 and the lower housing 212 are fastened together, the assembly groove 232 forms a closed space when the upper and

lower housings

211, 212 are assembled together, so that the pull rod 233 is received in the assembly groove 232 and can move only within a certain range, i.e., along the length direction thereof.

The abutting member 234 is provided on the pull rod 233 to be reciprocatable with the pull rod 233. The size of the abutting member 234 in the depth direction of the avoiding groove 231 should be strictly limited, that is, when the abutting member 234 is inserted between the elastic abutting head 235 and the avoiding groove 231, the overall length formed by the abutting member 234, the elastic abutting head 235 and the connecting neck 222 is equivalent to the length of the mounting hole 11, so as to limit the position of the mounting hole 11 in the length direction thereof. Of course, when the door panel 10 is pressed toward the second locking edge 224 after the abutting member 234 is drawn 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 an external force, such as the pressing of the side wall of the installation hole 11 of the door panel 10. Therefore, the position of the abutting member 234 on the pull rod 233 should be such that when the pull rod 233 is in a free state, the abutting member 234 is inserted between the elastic abutting head 235 and the escape groove 231, and when the pull rod 233 is pulled out or pressed, the abutting member 234 is pulled out from between the elastic abutting head 235 and the escape groove 231.

The elastic abutting head 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 abutting head 235 is inserted into the avoiding groove 231. The elastic abutting head 235 has a certain elasticity because the elastic abutting head 235 extends from the lower housing 212 to form a cantilever. As mentioned above, the size of the elastic abutting head 235 should be the same as the size of the abutting piece 234, the size in the depth direction of the avoiding groove 231 should be strictly limited, and the specific size design thereof should be the same as the size design of the abutting piece 234, and will not be described herein again.

The restoring elastic member 236 is disposed between the pull rod 233 and the assembling groove 231, which may be disposed on either side of the abutting member 234, such as left or right, so as to restore to an original position by the restoring elastic member 236 after the pull rod 233 is pressed or pulled.

When mounting, the pull rod 233 is firstly pressed, the abutting piece 234 is drawn out from between the elastic abutting head 235 and the escape groove 231, and then the mounting portion 22 is obliquely arranged with respect to the door panel 10 to be inserted into the mounting hole 11 of the door panel 10. The door panel 10 is pressed against the elastic abutting head 235 to be pressed into the avoiding 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 shell 211 by pulling the door panel 10, then the pressing of the pull rod 233 is released, the abutting piece 234 is inserted between the elastic abutting head 235 and the avoiding groove 231, so that the size of the elastic abutting head 235, the abutting piece 234 and the connecting neck 222 in the length direction is equivalent to the length of the mounting hole 11 of the door panel 10, and the position relation of 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 disassembled, the high-reliability door lock 20 can be disassembled from the door panel 10 according to the reverse process operation of the installation process.

Compared with the prior art, the high-reliability door lock provided by the invention has the advantages that the avoidance groove 231 is arranged on the upper shell 211 of the shell 10, the elastic abutting head 235 is arranged on the lower shell 212, and the abutting piece 234 is arranged between the avoidance groove 231 and the elastic abutting head 235. When the high-reliability door lock 20 is installed on the door panel 10, a user presses or pulls the abutting piece 234, so that the abutting piece 234 is pulled out from between the elastic abutting head 235 and the avoiding groove 231, so that when the installation hole 11 of the door panel 10 presses the elastic abutting head 235, the elastic abutting head 235 retracts into the avoiding groove 231, the size formed by the elastic abutting head 235 and the installation part 22 is reduced, the door panel 10 is easily sleeved into the installation part 22, then the abutting piece 234 is released, the low-pressure abutting piece 234 is inserted into between the elastic abutting head 235 and the avoiding groove 231, and then the elastic abutting head 235 rigidly abuts against the side wall of the installation 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 disassembled, the door lock can be disassembled from the door plate only by executing the actions in the opposite action flow. The high reliability door lock 20 is installed on the door panel 10 without using a fastener, and the high reliability door lock 20 can be safely and reliably installed on the door panel 10 due to the elastic abutting head 235.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. A high reliability lock, it installs on a door plant (10), be provided with a mounting hole (11) on door plant (10), its characterized in that: the high-reliability door lock (20) comprises a shell (21) and a propping assembly (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 propping assembly (23) comprises an avoiding groove (231) arranged on the upper shell (211), an elastic propping head (235) arranged on the lower shell (212) and a propping piece (234) arranged in the shell (21) in a sliding manner, when the propping piece (234) is in a free state, the propping piece (234) is positioned between the elastic propping head (235) and the avoiding groove (231) and the elastic propping head (235) extends out of the upper shell (211) so that the elastic propping head (235) is rigidly propped against the side wall of the mounting hole (11), when the abutting piece (234) is pressed, the abutting piece (234) is pulled out from between the elastic abutting head (234) and the avoiding groove (231) so that the elastic abutting head (235) is elastically abutted on the side wall of the mounting hole (11) and the elastic abutting head (235) and the avoiding groove (11) are arranged in a clearance mode.

2. The high reliability door lock of claim 1, wherein: high reliability lock (20) still includes a setting and is in installation department (22) on casing (21), installation department (22) set up go up casing (211) and include one and support knot body (221), one sets up support first card reason (223) of knot body (221) one side, and one sets up support second card reason (224) of knot body (221) opposite side, first card reason (223) extend go up the lateral wall of casing (211) and with go up casing (211) interval setting, second card reason (224) with go up casing (211) interval setting.

3. The high reliability door lock of claim 2, wherein: the maximum sectional area of the buckling-abutting body (221) is larger than the area of the mounting hole (11).

4. A highly reliable door lock according to claim 3, characterized in that: the installation part (22) further comprises a connecting neck (222) connected between the abutting-buckling body (221) and the upper shell (211), and the sectional area of the connecting neck (222) is smaller than that of the installation hole (11).

5. The high reliability door lock of claim 4, wherein: when the abutting piece (234) is located between the elastic abutting head (235) and the avoiding groove (231), the maximum length formed by the elastic abutting head (235), the abutting piece (234) and the connecting neck (222) is equal to the length of the mounting hole (11).

6. The high reliability door lock of claim 2, wherein: the first clamping edge (223) further comprises an abdicating space (225), the abdicating space (225) is used for accommodating the end part of the abutting piece (234), and when the upper shell (211) is connected with the lower shell (212), the abutting piece (234) and the end part of the elastic abutting head (235) are inserted into the abdicating space (225).

7. The high reliability door lock of claim 1, wherein: 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), wherein the abutting piece (234) is arranged on the pull rod (233).

8. The high reliability door lock of claim 7, wherein: when the pull rod (233) is pressed, the propping piece (234) is hidden in the assembling groove (232) and is removed from the avoiding groove (231).

9. The high reliability door lock of claim 7, wherein: when the pull rod (233) is in a free state, the abutting piece (234) is accommodated in the avoiding groove (231) so as to be clamped between the elastic abutting head (235) and the avoiding groove (231).

10. An electrical device, characterized by: the electrical apparatus comprises a door panel (10), and a high reliability door latch (20) according to any one of claims 1 to 9, the door panel (10) comprising a mounting hole (11), the high reliability door latch (20) being mounted in the mounting hole (11).