CN218821227U

CN218821227U - Lifting device and household appliance

Info

Publication number: CN218821227U
Application number: CN202222228581.7U
Authority: CN
Inventors: 席永学; 任相华; 任志洁; 解卫浩
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-04-07
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to the technical field of household appliances, a elevating gear and household appliance are provided. Elevating gear includes: the side wall of the mounting shell is provided with a mounting groove, a mounting space is formed inside the mounting shell, and the mounting shell is provided with an avoidance hole; the lifting transmission component is arranged on the mounting shell and can lift along the mounting groove; the lifting platform is positioned in the mounting space, is connected with the lifting transmission part, and is driven by the lifting transmission part to switch between a lifting position and a lowering position along the mounting groove; the accommodating piece is arranged on the lifting platform; the locking piece is arranged on the lifting platform and has a locking state and an unlocking state; in the lifting position, the locking piece is suitable for at least partially entering the avoidance hole to be switched to an unlocking state; in the lowered position, the locking member is in a locked state to lock the receiving member to the lifting platform. The lifting device can avoid foreign matters from falling into the lifting device, and the operation safety of operators is ensured.

Description

Lifting device and household appliance

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to elevating gear and household appliance.

Background

In the prior art, a lifting drawer is mostly arranged in a storage cabinet, and in order to realize transmission connection to drive the drawer to lift, a mounting groove needs to be formed in a mounting shell for a transmission part to extend out. And the establishment of mounting groove can lead to the foreign matter to fall into, and then has the risk of damaging mechanical structure. In addition, when the drawer is taken off, the mounting groove can be touched by hands, and then the risk of injuring the limbs of an operator due to the movement of the transmission part in the mounting groove can be caused.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the technical problems existing in the related art. Therefore, the utility model provides a lifting device, only when lifting platform is in the position of raising, the locking state between locking piece and the holding member just can be relieved, and lifting platform can cover the mounting groove basically this moment, and then can avoid the foreign matter to fall into to guarantee operating personnel's operation safety.

The utility model discloses still provide a domestic appliance.

According to the utility model discloses elevating gear of first aspect embodiment, include:

the side wall of the mounting shell is provided with a mounting groove, a mounting space is formed inside the mounting shell, and the mounting shell is provided with an avoidance hole;

the lifting transmission component is arranged on the mounting shell and can lift along the mounting groove;

the lifting platform is positioned in the mounting space, is connected with the lifting transmission part, and is driven by the lifting transmission part to switch between a lifting position and a lowering position along the mounting groove;

the accommodating piece is arranged on the lifting platform;

the locking piece is arranged on the lifting platform and has a locking state and an unlocking state;

in the raised position, the lock member is adapted to enter the relief hole at least partially to switch to the unlocked state; in the lowered position, the locking member is in the locked state to lock the accommodating member to the lifting platform.

According to the utility model discloses elevating gear, when lift platform was in the rising position, exerted the effort for the holding member this moment in order to get and put the holding member, the holding member can order about the locking member and at least partly get into and dodge the hole, and then makes the locking member switch to the unblock state to guarantee getting of holding member and put. And when lift platform was in the position that descends, the unable unblock of locking piece this moment, and then installed in lift platform's holding piece by the locking, the holding piece can't be taken out. Likewise, the receiving member cannot be mounted to the lifting platform in the lowered position. That is, only when lift platform is in the rising position, the locking state between locking piece and the holding member just can be relieved, and lift platform can cover the mounting groove basically this moment, and then can avoid the foreign matter to fall into to guarantee operating personnel's operation safety.

According to an embodiment of the present invention, the locking member is provided with a locking protrusion, and the accommodating member is provided with a first protrusion; in the locked state, the locking protrusion is adapted to stop the first protrusion.

According to an embodiment of the invention, the locking member further comprises a stop protrusion extending towards the mounting housing;

in the locking state, the stop protrusion stops against the side wall, or a set gap is formed between the stop protrusion and the side wall;

in the unlocked state, the stopper projection moves at least partially to the avoidance hole.

According to an embodiment of the present invention, the accommodating member is further provided with a second protrusion, and a locking groove is formed between the first protrusion and the second protrusion; in the locked state, the locking protrusion is located in the locking groove, and in the unlocked state, the locking protrusion is disengaged from the locking groove.

According to an embodiment of the present invention, the locking protrusion is formed with a first guide surface extending along the receiving member ascending direction and a second guide surface extending along the receiving member descending direction, and in the process of taking and placing the receiving member, the first guide surface and the second guide surface are adapted to receive the first protruding acting force, so that the locking member has a tendency to switch to the unlocked state.

According to an embodiment of the present invention, the locking member is rotatably disposed on the lifting platform, and the locking member is connected to the lifting platform through a restoring member; in the lifted position, the lock member is in the unlocked state under the action of the reset member.

According to an embodiment of the present invention, the restoring member is a torsion spring, a spring, or a magnetic adsorption member.

According to the utility model discloses an embodiment, the lateral wall is provided with the cover body, the cover body install in the top of mounting groove, and/or, the cover body install in dodge the hole top.

According to the utility model discloses an embodiment, the installation casing is including relative two that sets up the lateral wall, and two the symmetry is provided with on the lateral wall the mounting groove lift drive disk assembly with the locking piece, lift platform with the holding piece install in lift drive disk assembly.

According to the utility model discloses domestic appliance of second aspect embodiment, including above-mentioned elevating gear.

According to the utility model discloses domestic appliance, it has all technical characteristics of above-mentioned elevating gear, consequently has all technical effect of above-mentioned elevating gear, and it is no longer repeated here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a lifting device provided in the present invention, in which a lifting platform is in a raised position, and a locking member corresponds to an avoiding hole;

FIG. 2 is an enlarged partial schematic view at A of FIG. 1;

fig. 3 is a second schematic structural view of the lifting device provided by the present invention, wherein the lifting platform is in a lowered position;

FIG. 4 is an enlarged partial schematic view at B of FIG. 3;

fig. 5 is a partially enlarged schematic view at C in fig. 3.

100. Installing a shell; 110. mounting grooves; 120. an installation space; 130. avoiding holes; 140. a side wall;

200. a lifting transmission component;

300. a lifting platform;

400. a receiving member; 410. a first protrusion; 420. a second protrusion; 430. a locking groove;

500. a locking member; 510. a locking protrusion; 511. a first guide surface; 512. a second guide surface; 520. a stop projection;

600. a cover body;

700. an electric motor.

Detailed description of the preferred embodiments

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, references to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring to fig. 1 to 5, a lifting device according to an embodiment of the present invention includes a mounting housing 100, a lifting transmission member 200, a lifting platform 300, a receiving member 400, and a locking member 500. The side wall 140 of the mounting case 100 is formed with the mounting groove 110, and the mounting space 120 is formed inside the mounting case 100, and the mounting case 100 is provided with the escape hole 130. The elevation driving part 200 is installed at the installation case 100, and the elevation driving part 200 ascends and descends along the installation groove 110; the lifting platform 300 is located in the installation space 120, is connected to the lifting transmission member 200, and is driven by the lifting transmission member 200 to switch between a lifting position and a lowering position along the installation groove 110; the receiving member 400 is mounted to the elevating platform 300; the locking member 500 is installed on the lifting platform 300 and has a locking state and an unlocking state; in the raised position, the locking member 500 at least partially enters the avoidance hole 130, and the locking member 500 is switched to the unlocked state; in the lowered position, the lock member 500 is in a locked state to lock the receiving member 400 to the elevating platform 300.

Wherein, a driving unit of the lifting device, such as a motor 700, is disposed outside the installation space 120, and the lifting platform 300 is disposed in the installation space 120, therefore, in order to ensure that the driving unit can drive the lifting platform 300 to lift, it is necessary to provide an installation groove 110 in the side wall 140 of the installation housing 100, and the installation groove 110 is communicated with the installation space 120 to ensure that the driving unit and the lifting platform 300 can be coupled dynamically.

The lifted position of the elevating platform 300 generally refers to the extreme position where the elevating platform 300 is lifted, and the elevating transmission member 200 moves along the mounting groove 110 to the uppermost end of the mounting groove 110. While the lowered position of the lift platform 300 is relative to the raised position, any position other than the raised position may be understood as the lowered position of the lift platform 300. The lowered position includes a position where the elevating platform 300 is at the bottom of the mounting case 100, and any position between the raised position and the bottom of the mounting case 100 where the elevating platform 300 is at the bottom.

According to the embodiment of the present invention, please refer to fig. 1 and fig. 2, when the lifting platform 300 is in the lifting position, and at this time, the accommodating member 400 applies an acting force to the accommodating member 400 to pick and place the accommodating member 400, the accommodating member 400 may order the locking member 500 to at least partially enter the avoiding hole 130, so that the locking member 500 is switched to the unlocking state to ensure the picking and placing of the accommodating member 400. When the lifting platform 300 is in the lowered position, the locking member 500 cannot be unlocked, and the accommodating member 400 mounted on the lifting platform 300 is locked, so that the accommodating member 400 cannot be taken out. Likewise, the receiving member 400 cannot be mounted to the elevating platform 300 in the lowered position.

According to the utility model discloses an embodiment, only when lift platform 300 is in the rising position, the locking state between locking piece 500 and the holding member 400 just can be relieved, and lift platform 300 can cover mounting groove 110 basically this moment, and then can avoid the foreign matter to fall into to guarantee operating personnel's operation safety.

According to the lifting device, the locking or unlocking of the accommodating piece 400 is directly realized through a mechanical structure, so that the lifting device is reliable in structure and low in preparation cost.

In fig. 2, the avoiding hole 130 is disposed on the sidewall 140 of the mounting groove 110. Of course, the avoiding hole 130 may be disposed at other positions of the mounting case 100. For example, when the mounting groove 110 is disposed on the left side wall and the right side wall in fig. 1, the avoiding hole 130 may also be disposed on the front side wall or the rear side wall of the mounting housing 100, and correspondingly, the locking member 500 also corresponds to the front side or the rear side of the lifting platform 300, so as to ensure that the locking member 500 can at least partially enter the avoiding hole 130 when the locking member 500 is driven to unlock.

According to an embodiment of the present invention, please refer to fig. 2 and 4, the locking member 500 is provided with a locking protrusion 510, and the accommodating member 400 is provided with a first protrusion 410; in the locked state, the locking protrusion 510 is adapted to stop the first protrusion 410. In this way, since the locking protrusion 510 stops on the moving path of the first protrusion 410 in the locking state, the accommodating member 400 cannot be taken out of the lifting platform 300, so that the accommodating member 400 is locked, and the structure is simple and stable. It should be clear that the structural form of the locking member 500 is not limited by the examples herein, as long as the taking and placing actions of the accommodating member 400 can drive the locking member 500 to unlock or lock when the lifting platform 300 is in the lifted position.

In fig. 2 and 4, the locking member 500 further includes a stop protrusion 520 extending toward the mounting housing 100, in a locked state, the stop protrusion 520 abuts against the side wall 140, and in an unlocked state, the stop protrusion 520 at least partially moves to the avoiding hole 130. When the lifting platform 300 moves to the lifted position, the stopping protrusion 520 of the locking member 500 corresponds to the avoiding hole 130, and when the accommodating member 400 applies an acting force to the locking member 500, the stopping protrusion 520 can move into the avoiding hole 130, so as to unlock the locking member 500. When the lifting platform 300 is at the lowered position, if a user wants to take out the accommodating member 400, the stopping protrusion 520 of the locking member 500 abuts against the side wall 140 of the mounting housing 100, the locking member 500 cannot be switched to the unlocked state, and the accommodating member 400 cannot be taken out or placed.

In fig. 2 and 4, when the lifting platform 300 is lifted, there is a very small gap between the stopping protrusion 520 and the sidewall 140 of the mounting housing 100, that is, there is no contact between the stopping protrusion 520 and the mounting housing 100, so that the lifting platform 300 can be lifted smoothly. When the lifting platform 300 is in the lowered position, if only a small force is required to be applied to the locking member 500 to remove the receiving member 400 from the lifting platform 300, the stopping protrusion 520 of the locking member 500 is displaced and contacts the sidewall 140 of the mounting case 100 to prevent the receiving member 400 from being taken in and out. Likewise, the receiving member 400 cannot be mounted to the elevating platform 300 in the lowered position.

In fig. 2 and 4, the receiving member 400 is further provided with a second protrusion 420, and a locking groove 430 is formed between the first protrusion 410 and the second protrusion 420; in the locked state, the locking projection 510 is positioned in the locking groove 430, and in the unlocked state, the locking projection 510 is disengaged from the locking groove 430. The position of the receiving member 400 when locked can be more precisely defined by the engagement between the locking groove 430 and the locking protrusion 510.

In order to allow the locking member 500 to be switched toward the unlocked state when the receiving member 400 is removed, a first guide surface 511 is provided on the locking projection 510, and the first guide surface 511 extends in the ascending direction of the receiving member 400. When the lifting platform 300 is in the raised position, the first guide surface 511 is acted by the first protrusion 410 during the process of removing the receiving member 400, so that the locking member 500 is switched to the unlocked state. Similarly, in order to switch the lock member 500 to the unlock state when the receiving member 400 is mounted, a second guide surface 512 is provided on the lock member 500, and the second guide surface 512 extends in a descending direction of the receiving member 400. When the lifting platform 300 is in the raised position, the second guide surface 512 is acted on by the first protrusion 410 during the installation of the receiving member 400, so that the locking member 500 is switched to the unlocked state. Of course, instead of providing the above first guide surface 511 and second guide surface 512 on the locking projection 510, guide surfaces may be provided at corresponding positions on the first projection 410 and the second projection 420. Alternatively, the guide surfaces may be provided to the locking protrusion 510, the first protrusion 410, and the second protrusion 420 at the same time.

In fig. 1 to 4, the locking member 500 is rotatably disposed on the lifting platform 300, and the locking member 500 is connected to the lifting platform 300 via a resetting member (not shown). Under the action of the reset member, the initial state of the latch member 500 is a latched state. It is obvious that the locking member 500 can be installed on the lifting platform 300 by other means besides being rotatably connected, as long as the locking member 500 is ensured to have the locking state and the unlocking state, and the two states can be switched along with the taking and placing of the accommodating member 400. For example, the locking member 500 may also move linearly relative to the lifting platform 300, and a first guide surface 511 and a second guide surface 512 are formed on the same locking member 500, so that when the accommodating member 400 is taken and placed, the first guide surface 511 or the second guide surface 512 is forced to drive the locking member 500 to move linearly, so as to switch between the locking state and the unlocking state.

The piece that resets can be the torsional spring, and then when first spigot surface 511 atress, locking piece 500 rotates around the installation axle, and the torsional spring takes place to deform. Once the external force applied to the locking member 500 by the receiving member 400 is removed, the locking member 500 moves by the restoring force of the torsion spring and is switched to the locking state. The returning member may be a spring, a magnetic attracting member, or the like. When the resetting member is a magnetic adsorbing member, the magnetic adsorbing member may be disposed on the first protrusion 410, may also be disposed on the second protrusion 420, and may also be disposed in the locking groove 430 between the first protrusion 410 and the second protrusion 420, at this time, correspondingly, the locking member 500 may be made of a magnetic material. Alternatively, a magnetic attraction member may be disposed on the locking member 500, and a magnetic attraction material may be used for a corresponding position of the accommodating member 400, such as the first protrusion 410 or the second protrusion 420. When the first protrusion 410 or the second protrusion 420 is made of a magnetic material, the entire accommodating member 400 may be made of the same material for easy forming, or different materials may be used in other places of the accommodating member 400.

Referring to fig. 3 and 5, the sidewall 140 is provided with a cover 600, and the cover 600 is installed above the avoiding hole 130, so as to prevent foreign matters from falling into or injuring the user. In addition, a cover body 600 may be also provided at the top end of the mounting groove 110 to prevent foreign materials from falling into or pinching a user. When the lifting platform 300 is in the lifting position, the lifting transmission member 200 moves to the top end of the mounting groove 110; when the lifting platform 300 is in the lowered position, the top of the mounting groove 110 is communicated with the mounting space 120, and the cover 600 can protect the lifting platform. Referring to fig. 5, the cover body 600 may have a structure with an inclined top surface, so that even if foreign objects fall on the top surface of the cover body 600, the foreign objects may slide down to the installation space 120 along the top surface of the cover body 600 under the action of gravity, and may not fall into the installation groove 110. And foreign matter falling into the installation space 120 can be cleaned only by detaching the lifting platform 300.

In fig. 1 and 3, the installation housing 100 includes two opposite side walls 140, the two side walls 140 are symmetrically provided with the installation groove 110, the lifting transmission member 200 and the locking member 500, and the lifting platform 300 and the accommodating member 400 are installed on the lifting transmission member 200. In this case, both opposite sides of the lifting platform 300 are mounted to the mounting case 100 through the lifting transmission member 200, thereby ensuring the reliability of the mounting of the lifting platform 300. Of course, the number and the arrangement positions of the installation grooves 110, the lifting transmission members 200 and the locking members 500 are not limited by the examples, for example, the installation grooves 110 may be arranged on the front side wall or the rear side wall of the installation casing 100, and the lifting transmission members 200 and the locking members 500 may be arranged corresponding to the front side wall or the rear side wall of the installation casing 100. Also, the mounting grooves 110 may be provided at the front, rear, left, and right side walls of the mounting case 100 at the same time. In addition, the mounting groove 110 of the mounting case 100 may have an asymmetrical structure.

According to an embodiment of the present application, in conjunction with fig. 2, the lifting transmission member 200 may include a transmission belt, the transmission belt is connected to the driving motor 700, and then the driving motor 700 drives the lifting platform 300 to perform a lifting motion through the transmission belt when operating. The driving motor 700 and the driving belt are installed outside the installation space 120, and further, the installation groove 110 is formed in the side wall 140, so that the driving motor 700 can drive the lifting platform 300 in the installation space 120 to move. Of course, the lifting platform 300 may be driven by a transmission component such as a chain or a rack instead of the transmission belt, and the present disclosure is not limited thereto.

According to an embodiment of the application, still provide a domestic appliance, include above-mentioned elevating gear. The types of the household appliances are not limited, for example, the household appliances can be cabinets, wardrobes or refrigerators, and the household appliances of different types have the problems that articles placed at the bottom of the household appliances are inconvenient to take and place and need to be stooped for operation. Through adopting above-mentioned elevating gear, can make the user use more convenient, promote user experience.

In one embodiment, the household appliance is a refrigerator, in which case the lifting platform 300 is a tray in the refrigerator and the receiving member 400 is a drawer. Wherein, the drawer can be dismantled relatively to the tray, and then conveniently takes out article together with the drawer. Generally, the above lifting device is provided in a compartment of the bottom of the refrigerator.

Finally, it should be noted that the above embodiments are only used for illustrating the present invention, and are not to be construed as limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A lifting device, comprising:

the accommodating piece is arranged on the lifting platform;

2. The lifting device as claimed in claim 1, wherein the locking member is provided with a locking protrusion, and the receiving member is provided with a first protrusion; in the locked state, the locking protrusion is adapted to stop the first protrusion.

3. The lift device of claim 2, wherein the latch further includes a stop projection extending toward the mounting housing;

4. The lifting device as claimed in claim 2, wherein the receiving member is further provided with a second protrusion, and a locking groove is formed between the first protrusion and the second protrusion; in the locked state, the locking protrusion is located in the locking groove, and in the unlocked state, the locking protrusion is disengaged from the locking groove.

5. The lifting device as claimed in claim 2, wherein the locking projection is formed with a first guide surface extending in a direction in which the accommodating member is lifted and a second guide surface extending in a direction in which the accommodating member is lowered, the first guide surface and the second guide surface being adapted to receive a force of the first projection during taking and placing of the accommodating member, so that the locking member has a tendency to switch to the unlocked state.

6. The lifting device according to any one of claims 1 to 5, wherein the locking member is rotatably disposed on the lifting platform, and the locking member is connected to the lifting platform via a reset member; under the action of the reset piece, the initial state of the locking piece is the locking state.

7. The lifting device as claimed in claim 6, wherein the restoring member is a torsion spring, a spring or a magnetically attracted member.

8. The lifting device as claimed in any one of claims 1 to 5, wherein the side wall is provided with a plurality of covers, the covers being mounted on top of the mounting grooves and/or the covers being mounted above the avoiding holes.

9. The lifting device as claimed in any one of claims 1 to 5, wherein the mounting housing comprises two opposite side walls, the mounting groove, the lifting transmission member and the locking member are symmetrically disposed on the two side walls, and the lifting platform and the accommodating member are mounted on the lifting transmission member.

10. A domestic appliance comprising a lifting device according to any one of claims 1 to 9.