CN219197018U - Child lock device and household appliance thereof - Google Patents

Abstract

The utility model discloses a child lock device and a household appliance thereof, comprising: the bracket assembly is provided with a vertical groove; the door hook is arranged below the bracket component in a front-back moving way, and a locking groove which is opened upwards is formed in the upper side of the rear end of the door hook; the sliding piece is vertically movably penetrated through the vertical groove, an unlocking hole is formed in the upper end of the sliding piece, and the lower end of the sliding piece is selectively inserted into the locking groove; the sliding block is arranged on the bracket component in a back-and-forth moving way and positioned at the front side of the sliding piece, the rear end of the sliding block movably penetrates through the unlocking hole, and the sliding piece can be driven to move upwards when the sliding block moves backwards; and the two opposite ends of the elastic piece are respectively connected with the sliding block and the bracket component. The child lock device prevents the end of cooking caused by incorrect door opening in the cooking process, and simultaneously prevents the scalding or burning caused by opening the door body assembly by children and old people after the cooking process or the cooking process is finished, thereby improving the use safety.

Description

Child lock device and household appliance thereof

Technical Field

The utility model relates to the technical field of household appliances, in particular to a child lock device and a household appliance thereof.

Background

The old and children use the electrical apparatus to cook under the unfamiliar prerequisite of how safe use kitchen electric product, very easily appear scalding the condition of burn. Some users are in the process of cooking or after finishing, the users are in the hope of opening the door and taking out food, and high-temperature steam and gas in the cavity are very easy to cause scalding and burning to human bodies.

In order to reduce the probability of scalding and burning when a user uses the product, the UL standard in the united states requires that the kitchen electric product needs to be opened in two steps and closed in one step, namely, two actions are needed to open the door body to put or take food when the door is opened.

Therefore, it is necessary to design a child lock device suitable for household appliances to prevent the child and the old from being opened by mistake and the user from being scalded or burned due to the fact that the user opens the door by one hand.

Disclosure of Invention

The utility model aims to solve one of the problems in the prior art to at least a certain extent, and therefore, the utility model provides a child lock device which prevents the end of cooking caused by incorrect opening of a door in the cooking process, and simultaneously prevents scalding or burning caused by opening of a door body assembly by children and old people in the cooking process or after the cooking process is finished, thereby improving the use safety.

The utility model also provides a household appliance with the child lock device.

According to the above provided child lock device, the following technical scheme is adopted:

a child lock device comprising: the bracket assembly is provided with a vertical groove; the door hook is arranged below the bracket component in a back-and-forth moving way, and a locking groove which is opened upwards is formed in the upper side of the rear end of the door hook; the sliding piece is vertically movably penetrated through the vertical groove, an unlocking hole is formed in the upper end of the sliding piece, the lower end of the sliding piece is selectively inserted into the locking groove, namely, the lower end of the sliding piece can be inserted into the locking groove right below the sliding piece in a downward moving state of the sliding piece or separated from the locking groove in an upward moving state of the sliding piece; the sliding block is arranged on the bracket component in a front-back moving way and is positioned at the front side of the sliding piece, the rear end of the sliding block movably penetrates through the unlocking hole, and the sliding piece can be driven to move upwards when the sliding block moves backwards; and the two opposite ends of the elastic piece are respectively connected with the sliding block and the bracket component and are used for enabling the sliding block to always keep the forward moving trend.

In some embodiments, the bracket assembly comprises a lower bracket, the lower bracket is provided with a U-shaped groove which is open forward, the U-shaped groove is formed by surrounding a rear edge and two side edges which are oppositely arranged, the two side edges are respectively provided with a turned edge which is bent towards the inside of the U-shaped groove, and the two turned edges and the rear edge are surrounded to form the vertical groove.

In some embodiments, the flange is formed by bending a part of the side edge towards the inside of the U-shaped groove after being cut and separated from the side edge.

In some embodiments, a limiting structure is disposed between the slider and the lower bracket of the bracket assembly, and the limiting structure is used for limiting the slider up and down.

In some embodiments, the limiting structure comprises a fixed shaft and a vertically arranged limiting hole, the lower end of the sliding piece is provided with the limiting hole, the fixed shaft penetrates through the limiting hole and is fixedly connected with the lower support, and the limiting hole can move up and down relative to the fixed shaft.

In some embodiments, the limiting structure further comprises a fastener, the rear end of the fixed shaft is connected with the rear edge of the lower bracket, and the front end of the fixed shaft is connected with the two side edges of the lower bracket through the fastener.

In some embodiments, the bracket assembly further comprises an upper bracket, wherein the upper bracket comprises a vertical plate and a transverse plate which are fixedly connected in an L shape, and the vertical plate is provided with a transverse through hole; the sliding block is arranged on the vertical plate in a back-and-forth moving way and is positioned at the rear side of the transverse plate, a push rod which extends forwards and movably penetrates through the transverse through hole is fixedly arranged at the front end of the sliding block, and a driving inclined wedge matched with the upper edge of the unlocking hole is formed at the upper side of the rear end of the sliding block; opposite ends of the elastic piece are respectively connected with the sliding block and the vertical plate.

In some embodiments, a step surface or a rear limit part positioned at the rear side of the active inclined wedge is arranged at the upper side of the rear end of the sliding block, the step surface movably penetrates through the unlocking hole and abuts against the upper edge of the unlocking hole in the downward moving state of the sliding piece, and the rear limit part is arranged at the rear side of the unlocking hole and abuts against the back surface of the sliding piece in the downward moving state of the sliding piece.

In some embodiments, a guide structure is provided between the slider and the transverse plate, the guide structure being used to guide the slider back and forth.

In some embodiments, the guiding structure includes a guiding groove and a sliding portion, the transverse plate is provided with the guiding groove arranged along the front-rear direction, the bottom of the sliding block is fixedly provided with the sliding portion extending downwards, and the sliding portion is in sliding connection with the guiding groove.

In some embodiments, the transverse plate is further provided with a through hole for the sliding part to pass through, and the through hole is positioned at the rear side of the guide groove and is communicated with the guide groove; clamping grooves are formed on the left side and the right side of the sliding part respectively, and the two clamping grooves are in sliding connection with the left edge and the right edge of the guide groove.

In some embodiments, the top of the vertical plate is fixedly provided with an installation part extending upwards, the sliding block is provided with a cavity opening upwards, a separation part is fixedly arranged in the cavity, and two opposite ends of the elastic piece are respectively hooked with the installation part and the separation part.

In some embodiments, a guide surface positioned at the rear side of the locking groove is arranged at the upper side of the rear end of the door hook, and the guide surface can push the sliding piece to move upwards when the door hook moves backwards; the lower end of the sliding piece is provided with an arc surface matched with the guide surface.

According to the household appliance provided by the utility model, the household appliance is realized by the following technical scheme:

a household appliance, comprising: the cavity assembly is provided with a liner with a front opening and a liner front plate, and the liner front plate is provided with a first opening for a door hook to pass through; the door body assembly is used for opening or closing the front opening of the inner container; and the sliding piece is arranged on the back surface of the front plate of the inner container through the bracket component, the front end of the door hook is fixedly connected with the door body component, and the rear end of the door hook is movably arranged in the first opening in a penetrating manner.

In some embodiments, the liner further comprises a panel assembly disposed above the liner front plate and provided with a second aperture; the support assembly is arranged on the back of the panel assembly and the front plate of the liner, and the push rod of the sliding block movably penetrates through the second opening.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. according to the child lock device, the sliding piece is vertically movably arranged in the vertical groove of the bracket assembly in a penetrating manner, the door hook is arranged below the bracket assembly in a front-back moving manner, the sliding piece can be pushed to move upwards when the door hook moves backwards, the sliding piece moves downwards under the action of self gravity and is inserted into the locking groove of the door hook, so that the sliding piece locks the door tongue, the front-back movement of the door tongue is limited, mechanical control locking is realized, the cooking termination caused by incorrect door opening in the cooking process is prevented, and the scalding or burning caused by opening the door body assembly by children and old people after the cooking process or the cooking is prevented, so that the use safety is improved;

2. through with the slider back-and-forth movement set up in the bracket component and lie in the slider front side, the unlocking hole of locating the slider is worn to the rear end activity of slider, can drive the slider and upwards move when the slider is backward to make the lower extreme of slider break away from the locked groove and collude mutually unblock with the door, slider and bracket component are connected respectively to the opposite both ends of elastic component, and the elastic component is used for pulling the slider and moves forward to the position that resets, like this, realizes mechanical control unblanking, reduce cost, practices thrift the power consumption.

Drawings

FIG. 1 is a schematic view showing the structure of the child lock device in a locked state in embodiment 1 of the present utility model;

FIG. 2 is a schematic view of the child lock apparatus according to embodiment 1 of the present utility model in an unlocked state;

FIG. 3 is a schematic view showing the structure of a lower bracket in embodiment 1 of the present utility model;

FIG. 4 is a schematic view showing the structure of an upper bracket in embodiment 1 of the present utility model;

FIG. 5 is a schematic view showing the structure of a door tongue in embodiment 1 of the present utility model;

fig. 6 is a schematic structural view of a slider in embodiment 1 of the present utility model;

FIG. 7 is a schematic view showing the structure of a slider in embodiment 1 of the present utility model;

FIG. 8 is a schematic view of another slider according to embodiment 1 of the present utility model;

FIG. 9 is a schematic view showing the structure of the fixing shaft and the fastening member in embodiment 1 of the present utility model;

fig. 10 is a schematic view of a structure of a household appliance in embodiment 2 of the present utility model;

fig. 11 is a schematic diagram of a second embodiment of the present utility model.

In the figure: 1-bracket assembly, 11-lower bracket, 110-vertical groove, 111-rear edge, 1110-large flanging hole, 112-side edge, 1121-flanging, 1122-via hole, 1123-screw hole, 113-front edge, 12-upper bracket, 121-vertical plate, 1211-transverse through hole, 1212-mounting portion, 122-transverse plate, 1221-guide groove, 1222-through hole; 2-door hooks, 21-locking grooves, 22-guiding surfaces and 23-flanging; 3-sliding parts, 31-unlocking holes, 32-limiting holes and 33-arc surfaces; 4-sliding blocks, 41-pushing rods, 42-active inclined wedges, 43-step surfaces, 44-rear limiting parts, 45-sliding parts, 451-clamping grooves, 46-cavities, 461-separating parts and 4611-hook holes; 5-an elastic member; 61-a fixed shaft, 611-a limit boss, 612-a shaft hole, 62-a fastener, 621-a threaded part;

7-cavity components, 71-inner containers, 72-inner container front plates and 721-first openings; 8-door body assembly, 81-door handle; 9-panel assembly.

Detailed Description

The following examples illustrate the utility model, but the utility model is not limited to these examples. Modifications and equivalents of some of the technical features of the specific embodiments of the present utility model may be made without departing from the spirit of the present utility model, and they are all included in the scope of the claimed utility model.

Example 1

The embodiment provides a mechanical child lock device, which is applied to a household appliance, wherein the household appliance can be a dish washer or cooking equipment, and the cooking equipment is a steam box, an oven or a steaming and baking integrated machine. Referring to fig. 1-2, the child lock device includes a bracket assembly 1, a door hook 2, a slider 3, a slider 4, and an elastic member 5, wherein the bracket assembly 1 is fixedly installed at the back of a front plate 72 of a liner, and is provided with a vertical groove 110 and a lateral through hole 1211, and the vertical groove 110 is located below the rear side of the lateral through hole 1211. The door hook 2 is movably disposed below the bracket assembly 1, the front end of the door hook is used for connecting and fixing the door body assembly 8, a locking groove 21 with an upward opening is formed on the upper side of the rear end of the door hook 2, the locking groove 21 is used for locking or unlocking with the lower end of the sliding piece 3, and in this embodiment, the sliding piece 3 above the door hook 2 can be pushed to move upwards when the door hook 2 moves backwards.

The sliding piece 3 passes through the vertical groove 110 in a vertically moving manner, the upper end and the lower end of the sliding piece 3 respectively protrude out of the upper end face and the lower end face of the vertical groove 110, the upper end of the sliding piece 3 is provided with an unlocking hole 31 matched with the rear end of the sliding piece 4, in the embodiment, the vertical groove 110 has a guiding function in the vertical movement of the sliding piece 3, and the limiting on the front-back direction of the sliding piece 3 can be realized. The upper end of the sliding part 3 is selectively inserted into the locking groove 21 of the door hook 2, namely, the lower end of the sliding part 3 can be inserted into the locking groove 21 in a downward moving state of the sliding part 3, so that the sliding part 3 locks the door tongue 3, the front and back movement of the door tongue 3 is limited, the mechanical control locking is realized, the door body assembly 8 can not be opened to a cavity assembly of a household appliance, the cooking termination caused by the incorrect opening of the door body assembly 8 in the cooking process is prevented, the scalding or burning caused by the opening of the door body assembly 8 by children and old people after the cooking process or the cooking is finished is prevented, and the use safety is improved; alternatively, the lower end of the sliding member 3 can be separated from the locking groove 21 in the state that the sliding member 3 moves upwards, so that the sliding member 3 and the door tongue 3 are unlocked, at this time, the door tongue 3 can move forwards and backwards, and the door body assembly 8 can open the cavity assembly of the household appliance. Specifically, the state in which the slider 3 moves downward means that the slider 3 moves downward to the lowest point; the upward movement of the slider 3 means that the slider 3 moves upward to the highest point.

The sliding block 4 is movably arranged on the bracket assembly 1 back and forth and is positioned at the front side of the sliding piece 3, the rear end of the sliding block 4 movably penetrates through the unlocking hole 31, and the front end of the sliding block 4 is fixedly provided with a push rod 41 which extends forwards and movably penetrates through the transverse through hole 1211. Referring to fig. 2, when the door body assembly 8 needs to be opened, the user manually presses the push rod 41, so that the push rod 41 pushes the sliding block 4 to move backward, and when the sliding block 4 is pushed to move backward, the sliding piece 3 can be driven to move upward, so that the lower end of the sliding piece 3 is separated from the locking groove 21 and unlocked with the door hook 2, and mechanical control unlocking or unlocking is realized, and at this time, the door body assembly 8 can open the cavity assembly outwards.

The opposite ends of the elastic member 5 are respectively connected with the sliding block 4 and the bracket assembly 1, so that the sliding block 4 always keeps a forward moving trend, and the sliding block 4 is pulled to move forward to a reset position, and thus, after the external force acting on the sliding block 4 is removed, the elastic force of the elastic member 5 can pull the sliding block 4 to move forward to an original position, and the elastic member 5 is restored to an initial state.

Referring to fig. 1, when the door body assembly 8 needs to be closed, the door body assembly 8 drives the door hook 2 to move backwards, the door hook 2 touches and pushes the sliding piece 3 to move upwards when moving backwards, when the door body assembly 8 is completely closed, the sliding piece 3 moves downwards under the action of self gravity and is inserted into the locking groove 21, the front and back movement of the door tongue 3 is limited, and at the moment, the door body assembly 8 cannot open the cavity assembly of the household appliance.

Referring to fig. 1-3, the bracket assembly 1 includes a lower bracket 11 for fixed mounting to the rear surface of the liner front plate 72, the lower bracket 11 having a U-shaped groove (not shown) open toward the front, the U-shaped groove being defined by a rear edge 111 and two oppositely disposed side edges 112. The sliding member 3 is vertically movably inserted into the vertical groove 110, and the upper and lower ends of the sliding member 3 protrude from the upper and lower end surfaces of the lower bracket 11, respectively.

A vertical groove 110 is formed in the U-shaped groove of the lower bracket 11 in a vertical arrangement. In this embodiment, the two side edges 112 are respectively provided with a flange 1121 bent towards the inside of the U-shaped groove, a space is reserved between the two flange 1121, and the two flange 1121 and the rear edge 111 are enclosed to form a vertical groove 110, so that the two flange 1121 realizes front limit on the sliding piece 3 and the rear edge 111 realizes rear limit on the sliding piece 3. Alternatively, the flange 1121 is formed by bending the part of the side edge 112 and the side edge 112 toward the inside of the U-shaped groove after being cut and separated, so that the two side edges 112 of the lower bracket 11 are fully utilized while the flange 1121 is conveniently and rapidly formed, and materials are saved. In other embodiments, a vertically arranged partition plate may be used instead of the two flanges 1121, where the left and right ends of the partition plate are welded to the two sides 112 of the U-shaped groove, respectively, and a vertical groove 110 is defined between the rear plate 111 and the partition plate.

In this embodiment, the lower bracket 11 further has two front edges 113, and the two front edges 113 are fixedly connected to the front ends of the two side edges 112, so that the lower bracket 11 is shaped like a letter "table" or "Ω", and thus, the lower bracket 11 can be reliably and fixedly mounted on the back of the liner front plate 72 through the two side edges 112.

Referring to fig. 1-2 and 4, the bracket assembly 1 further includes an upper bracket 12, where the upper bracket 12 is in an "L" shape, and includes a vertical plate 121 and a lateral plate 122 fixedly connected in an "L" shape, the lateral plate 122 is located at the rear side of the plate 121, and the vertical plate 121 is provided with a lateral through hole 1211. The sliding block 4 is movably disposed on the vertical plate 121 and located at the rear side of the transverse plate 122, and a push rod 41 extending forward and movably penetrating through the transverse through hole 1211 is fixed at the front end of the sliding block 4, and the push rod 41 penetrates through the transverse through hole 1211 and protrudes out of the front side of the vertical plate 121. An active inclined wedge 42 is formed at an upper side of a rear end of the slider 4 to be engaged with an upper edge of the unlocking hole 31, the active inclined wedge 42 passing through the unlocking hole 31 to be movable forward and backward for pushing the slider 3 to move upward when the slider 4 moves backward. Opposite ends of the elastic member 5 are respectively connected with the slider 4 and the vertical plate 121. Therefore, the sliding block 4 is reliably installed on the upper bracket 12 through the upper bracket 12, the installation of the elastic piece 5 is facilitated, and after the sliding block 4 is pushed to move backwards and the external force is removed, the elastic piece 5 can pull the sliding block 4 to move forwards to the original position.

An upwardly extending mounting portion 1212 is fixedly arranged at the top of the vertical plate 121, the slider 4 has an upwardly opening cavity 46, a partition portion 461 is fixedly arranged in the cavity 46, the partition portion 461 partitions the cavity 46 into front and rear portions, and a hook hole 4611 is formed in the partition portion 461, refer to fig. 7 or 8. Opposite ends of the elastic member 5 are hooked with the hooking holes 4611 of the mounting portion 1212 and the partition portion 461, respectively, thereby realizing reliable connection of the elastic member 5 to the slider 4 and the vertical plate 121 of the upper bracket 12.

In order to realize guiding function for the forward and backward movement of the slider 4 to prevent displacement phenomenon during the forward and backward movement of the slider 4, a guiding structure (not shown) is provided between the lateral plate 122 and the slider 4. Referring to fig. 1-2, 4 and 7-8, in the present embodiment, the guiding structure includes a guiding groove 1221 and a sliding portion 45, the transverse plate 122 is provided with the guiding groove 1221 arranged along the front-rear direction, the bottom of the sliding block 4 is fixedly provided with the sliding portion 45 extending downward, and the sliding portion 45 is slidably connected with the guiding groove 1221.

The lateral plate 122 is further provided with a through hole 1222 through which the sliding portion 45 passes, the through hole 1222 being located at the rear side of the guide groove 1221 and communicating with the guide groove 1221, the length of the through hole 1222 in the lateral direction being longer than the length of the guide groove 1221 in the lateral direction, so that the through hole 1222 and the guide groove 1221 together constitute a T-shaped hole. The sliding portion 45 is freely inserted through the through hole 1222, and the left and right sides of the sliding portion 45 are respectively formed with the locking grooves 451, and the two locking grooves 451 are slidably connected to the left and right edges of the guide groove 1221.

Optionally, the sliding portion 45 has an inverted "T" shape, and includes a vertical section and a lateral section, the lateral section is located below the lateral plate 122, and the size of the lateral section is smaller than the size of the through hole 1222 to ensure that the lateral section can move forward to below the guide groove 1221 after freely passing through the through hole 1222, and the length of the guide groove 1221 in the left-right direction is smaller than the length of the lateral section in the left-right direction to prevent the lateral section from being pulled out upward from the guide groove 1221. The vertical section vertically movably penetrates through the guide groove 1221 and the through hole 1222, the upper end of the vertical section is fixedly connected with the bottom of the sliding block 4, and the lower end of the vertical section is fixedly connected with the middle position of the top surface of the transverse section. The left and right ends of the transverse section and the left and right sides of the vertical section define a clamping groove 451. When the slider 4 is mounted, the sliding portion 45 of the slider 4 penetrates through the T-shaped hole (wider surface) of the upper bracket 12, so that the slider 4 is pushed to move forward, and as the T-shaped hole is narrowed, the sliding portion 45 of the slider 4 is completely buckled into the upper bracket 12, even if the left and right edges of the guide groove 1221 are respectively inserted into the clamping grooves 451 on the left and right sides of the sliding portion 45, at this time, the slider can move back and forth relative to the guide groove 1221; the push rod 41 of the slider 4 protrudes outside the front face of the upper bracket 12 through the lateral through hole 1211 of the upper bracket 12.

Referring to fig. 1-2 and 5-6, a guide surface 22 is provided at the rear end upper side of the door hook 2 at the rear side of the locking groove 21, and the guide surface 22 can push the slider 3 to move upward when the door hook 2 moves backward. In this embodiment, the front end of the door hook 2 is bent to the left or right to form a flange 23, and the flange 23 is fixedly mounted on the door body assembly 8.

The lower end of the sliding member 3 is formed with an arc surface 33 matched with the guide surface 22, and the sliding member 3 is pushed to move upwards when the door hook 2 moves backwards through the matching of the arc surface 33 and the guide surface 22.

Referring to fig. 1-2 and fig. 6-7, a step surface 43 is provided on the upper side of the rear end of the slider 4 and located at the rear side of the active inclined wedge 42, the step surface 43 movably passes through the unlocking hole 31 and abuts against the upper edge of the unlocking hole 31 in the downward moving state of the slider 3, at this time, the step surface 43 abuts against the upper edge of the unlocking hole 31, so that the slider 4 is prevented from falling off the unlocking hole 31, and the slider 3 is reliably hung, thereby realizing the downward limit of the slider 3. Of course, referring to fig. 8, a rear limiting portion 44 located at the rear side of the active inclined wedge 42 may be disposed at the upper side of the rear end of the slider 4, where the rear limiting portion 44 is fixedly disposed on the top surface of the step surface 43 and extends upward, and the rear limiting portion 44 is disposed at the rear side of the unlocking hole 31 and abuts against the rear surface of the slider 3 in the downward moving state of the slider 3, so as to prevent the slider 4 from being pulled out of the unlocking hole 31 forward.

In order to limit the vertical movement stroke of the slider 3 and prevent the slider 3 from being separated from the vertical groove 110 of the lower bracket 11 upward or downward, referring to fig. 1, 3, 6 and 9, a limiting structure (not shown) is disposed between the slider 3 and the lower bracket 11 of the bracket assembly 1, and the limiting structure is used for limiting the slider 3 up and down.

The limiting structure comprises a fixed shaft 61 and a vertically arranged limiting hole 32, the lower end of the sliding piece 3 is provided with the limiting hole 32 for the fixed shaft 61 to pass through, the fixed shaft 61 transversely penetrates through the limiting hole 32 and is fixedly connected with the lower bracket 11, and the limiting hole 32 can move up and down relative to the fixed shaft 61. Thus, by the cooperation of the fixed shaft 61 and the limiting hole 32, the sliding part 3 is ensured not to be separated from the vertical groove 110, and the installation reliability of the sliding part 3 is improved. Optionally, the limiting structure further includes a fastener 62, the rear end of the fixed shaft 61 is connected to the rear edge 111 of the lower bracket 11, and the front end of the fixed shaft 61 is connected to two side edges 112 of the lower bracket 11 through the fastener 62.

Referring to fig. 1, 3 and 9, in the present embodiment, the rear edge 111 of the lower bracket 11 is provided with a large flanging hole 1110 through which one end of the fixed shaft 61 far from the limiting boss 611 passes, the left side 112 of the lower bracket 11 is provided with a through hole 1122 through which the fastener 62 passes, and the right side 112 of the lower bracket 11 is provided with a screw hole 1123 arranged corresponding to the through hole 1122. A limit boss 611 is fixedly arranged at the rear end of the fixed shaft 61, and a shaft hole 612 for the fastener 62 to pass through is arranged at the front end. The fastener 62 is a screw, the head of which is provided with a limit boss, and the tail of which is provided with a thread 621. During installation, the front end of the fixed shaft 61 sequentially passes through the large flanging hole 1110 of the lower bracket 11 and the limit hole 32 of the sliding piece 3 from back to front until the limit boss 611 abuts against the rear edge 111 of the lower bracket 11; then, the fastener 62 sequentially passes through the through hole 1122 of the lower bracket 11 and the shaft hole 612 of the fixed shaft 61 from left to right, and then the threaded portion 621 of the fastener 62 is fastened and connected with the screw hole 1123 of the lower bracket 11, and the limit boss of the fastener 62 abuts against the left side edge of the lower bracket 11. Thus, the rear end of the fixed shaft 61 is securely and fixedly coupled to the lower bracket 11 by the fastener 62.

Example 2

The household appliance of the embodiment can be a dish washer or cooking equipment, and the cooking equipment is a steam box, an oven or a steaming and baking integrated machine. Referring to fig. 10-11, a household appliance comprises a cavity assembly 7, a door assembly 8 and a child lock device as described in example 1. The cavity assembly 7 has a front opening inner container 71 and a front inner container plate 72, the front inner container plate 72 is disposed at the front opening periphery of the inner container 71, and the front inner container plate 72 is provided with a first opening 721 for the door hook 2 to pass through. The door assembly 8 is used to open or close the forward opening of the liner 71. The sliding part 3 is installed on the back of the liner front plate 72 through the bracket component 1, the front end of the door hook 2 is fixedly connected with the door body component 8, and the rear end of the door hook is movably arranged through the first opening 721.

Therefore, the child lock device is arranged on the inner container front plate 72 and the door body assembly 8, so that the household appliance meets the UL standard requirement of the United states, scalding and burning caused by opening the door body assembly 8 by children after the cooking process is finished are prevented, and cooking termination caused by mistakenly opening the door body assembly 8 by children and old people in the cooking process is also prevented, and the cooking effect is influenced.

In this embodiment, the apparatus further includes a panel assembly 9, where the panel assembly 9 is disposed above the liner front plate 72 and is provided with a second opening (not shown in the drawings); the bracket assembly 1 is mounted on the back of the panel assembly 9 and the liner front plate 72, specifically, the lower bracket 11 of the bracket assembly 1 is fixedly mounted on the back of the liner back plate 72, and the upper bracket 12 of the bracket assembly 1 is fixedly mounted on the back of the panel assembly 9. The push rod 41 of the sliding block 4 movably penetrates through the second opening and protrudes out of the front face of the panel assembly 9, so that a user can push the sliding block 4 to move backwards from the front face of the panel assembly 9, and the sliding block 4 drives the sliding piece 3 to move upwards when moving backwards, mechanical control unlocking is achieved, operation is reliable, cost is low, and practicability is high.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (15)

1. A child lock device, comprising:

the bracket assembly (1) is provided with a vertical groove (110);

the door hook (2) is arranged below the bracket assembly (1) in a back-and-forth moving way, and a locking groove (21) which is opened upwards is formed in the upper side of the rear end of the door hook (2);

the sliding piece (3) is vertically movably arranged in the vertical groove (110) in a penetrating mode, an unlocking hole (31) is formed in the upper end of the sliding piece (3), and the lower end of the sliding piece (3) is selectively inserted into the locking groove (21);

the sliding block (4) is arranged on the bracket assembly (1) in a front-back moving way and is positioned on the front side of the sliding piece (3), the rear end of the sliding block (4) movably penetrates through the unlocking hole (31), and the sliding piece (3) can be driven to move upwards when the sliding block (4) moves backwards; and

and the two opposite ends of the elastic piece (5) are respectively connected with the sliding block (4) and the bracket assembly (1) and are used for enabling the sliding block (4) to always keep a forward moving trend.

2. A child lock device according to claim 1, wherein the bracket assembly (1) comprises a lower bracket (11), the lower bracket (11) is provided with a U-shaped groove which is opened forward, the U-shaped groove is formed by enclosing a rear edge (111) and two oppositely arranged side edges (112), the two side edges (112) are respectively provided with a turned edge (1121) which is bent towards the inside of the U-shaped groove, and the two turned edges (1121) and the rear edge (111) are enclosed to form the vertical groove (110).

3. A child lock device according to claim 2, wherein the flange (1121) is formed by bending a part of the side edge (112) towards the inside of the U-shaped groove after being cut and separated from the side edge (112).

4. A child lock device according to any one of claims 1-3, wherein a limit structure is provided between the slider (3) and the lower bracket (11) of the bracket assembly (1), said limit structure being adapted to limit the slider (3) up and down.

5. The child lock device according to claim 4, wherein the limiting structure comprises a fixed shaft (61) and a vertically arranged limiting hole (32), the limiting hole (32) is formed in the lower end of the sliding piece (3), the fixed shaft (61) penetrates through the limiting hole (32) and is fixedly connected with the lower bracket (11), and the limiting hole (32) can move up and down relative to the fixed shaft (61).

6. A child lock device according to claim 5, wherein the limit structure further comprises a fastening member (62), the rear end of the fixing shaft (61) is connected to the rear edge (111) of the lower bracket (11), and the front end of the fixing shaft (61) is connected to both side edges (112) of the lower bracket (11) through the fastening member (62).

7. A child lock device according to claim 1, wherein the bracket assembly (1) further comprises an upper bracket (12), the upper bracket (12) comprises a vertical plate (121) and a transverse plate (122) fixedly connected in an L shape, and the vertical plate (121) is provided with a transverse through hole (1211);

the sliding block (4) is arranged on the vertical plate (121) in a back-and-forth moving way and is positioned at the rear side of the transverse plate (122), a push rod (41) which extends forwards and movably penetrates through the transverse through hole (1211) is fixedly arranged at the front end of the sliding block (4), and an active inclined wedge (42) matched with the upper edge of the unlocking hole (31) is formed at the upper side of the rear end of the sliding block (4);

opposite ends of the elastic piece (5) are respectively connected with the sliding block (4) and the vertical plate (121).

8. The child lock device according to claim 7, wherein a step surface (43) or a rear limit portion (44) located at the rear side of the active inclined wedge (42) is provided at the upper side of the rear end of the slider (4), the step surface (43) movably penetrates through the unlocking hole (31) and abuts against the upper edge of the unlocking hole (31) in the state that the slider (3) moves down, and the rear limit portion (44) is provided at the rear side of the unlocking hole (31) and abuts against the back surface of the slider (3) in the state that the slider (3) moves down.

9. A child lock device according to claim 7, wherein a guiding structure is provided between the slider (4) and the transverse plate (122), said guiding structure being adapted to guide the back and forth movement of the slider (4).

10. The child lock device according to claim 9, wherein the guiding structure comprises a guiding groove (1221) and a sliding part (45), the transverse plate (122) is provided with the guiding groove (1221) arranged along the front-rear direction, the bottom of the sliding block (4) is fixedly provided with the sliding part (45) extending downwards, and the sliding part (45) is slidably connected with the guiding groove (1221).

11. A child lock device according to claim 10, wherein the transverse plate (122) is further provided with a through hole (1222) through which the sliding part (45) passes, the through hole (1222) being located at the rear side of the guide groove (1221) and communicating with the guide groove (1221); clamping grooves (451) are formed on the left and right sides of the sliding part (45), and the two clamping grooves (451) are connected with the left and right edges of the guide groove (1221) in a sliding mode.

12. A child lock device according to claim 7, wherein the top of the vertical plate (121) is fixedly provided with an upwardly extending mounting portion (1212), the slider (4) has an upwardly opening cavity (46), a partition portion (461) is fixedly provided in the cavity (46), and opposite ends of the elastic member (5) are respectively hooked with the mounting portion (1212) and the partition portion (461).

13. A child lock device according to claim 1, wherein a guide surface (22) is provided on the upper side of the rear end of the door hook (2) at the rear side of the lock groove (21), and the guide surface (22) can push the sliding member (3) to move upward when the door hook (2) moves backward; the lower end of the slider (3) is formed with an arc surface (33) that mates with the guide surface (22).

14. Household appliance, characterized in that it comprises:

the cavity assembly (7) is provided with a liner (71) which is opened forwards and a liner front plate (72), and the liner front plate (72) is provided with a first opening (721) for the door hook (2) to pass through;

a door body assembly (8) for opening or closing the forward opening of the inner container (71); and

a child lock device according to any one of claims 1-13, wherein the sliding member (3) is mounted on the back of the front panel (72) of the inner container through the bracket assembly (1), the front end of the door hook (2) is fixedly connected with the door body assembly (8), and the rear end of the door hook is movably arranged through the first opening (721).

15. The household appliance according to claim 14, further comprising a panel assembly (9), said panel assembly (9) being arranged above said liner front plate (72) and provided with a second aperture; the support assembly (1) is arranged on the back surfaces of the panel assembly (9) and the liner front plate (72), and the push rod (41) of the sliding block (4) movably penetrates through the second opening.

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