Lifting cabinet

Abstract

A lifting cabinet comprises a fixed cabinet body and a movable cabinet body, the fixed cabinet body and the movable cabinet body are connected through a lifting mechanism, the lifting mechanism comprises a base installed in the fixed cabinet body, the base is connected with a sliding plate through a guide device, and the sliding plate slides front and back relative to the base; a first swing arm and a second swing arm are installed on the sliding plate in a hinged mode, and the other end of the first swing arm and the other end of the second swing arm are hinged to the movable cabinet. A driving arm is further installed on the sliding plate in a hinged mode, a linkage device is arranged at the other end of the driving arm and connected with the base, and the sliding plate has the advantages that the hinged point of the first swing arm and the second swing arm can move front and back along with movement of the sliding plate. By means of the design, interference between the bottom of the movable cabinet and the bottom of the fixed cabinet can be avoided, and it can be guaranteed that the movable cabinet can move more stably and flexibly during lifting. The bottom of the movable cabinet can be better attached to the fixed cabinet by adjusting the position of the hinge point, and therefore the gap between the movable cabinet and the fixed cabinet is obviously reduced.

Description

Technical Field

[0001] This utility model relates to the field of kitchen cabinet technology, specifically a lift-up cabinet. Background Technology

[0002] As people's demands for space utilization continue to increase, various furniture pieces with flexible storage functions are gradually entering the market. Among them, lift-up cabinets, which achieve storage and retrieval functions through lifting, have been widely used. Existing lift-up cabinets typically connect the movable cabinet and the fixed cabinet through a lifting mechanism, enabling the movable cabinet to move up and down. However, current technology commonly uses a four-bar linkage structure as the lifting mechanism to connect the fixed and movable cabinets. While this design enables the movable cabinet to move up and down, it has some significant drawbacks in practical applications.

[0003] For example, existing four-bar linkage structures typically use fixed hinge points, with the lifting and lowering function of the mobile cabinet achieved through the movement of four links. However, this structure has a significant problem in use: because the hinge points are fixed, to ensure the mobile cabinet avoids the bottom of the fixed cabinet during lifting, the linkages must be relatively long, necessitating a certain gap between the bottom of the mobile cabinet and the fixed cabinet when closed. While this design solves the collision problem between the mobile and fixed cabinets, it also leads to a considerable waste of space.

[0004] Specifically, when the mobile cabinet is closed, there is a large gap at the bottom between the fixed and mobile cabinets. This gap cannot be effectively utilized, resulting in wasted space. This gap is a design flaw, especially in situations where space is limited or where space utilization is critical. While the existing four-bar linkage structure enables the movement of the mobile cabinet, it cannot fully optimize the spatial layout, thus affecting the practicality and space utilization efficiency of the lifting cabinet. Therefore, further improvements are necessary. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a lifting cabinet that is simple in structure, easy to use, ensures the movement function and stability of the lifting cabinet, reduces the gap between the moving cabinet and the fixed cabinet, and improves the space utilization rate.

[0006] The purpose of this utility model is achieved in the following way: a lifting cabinet, which includes a fixed cabinet and a movable cabinet, wherein the fixed cabinet and the movable cabinet are connected by a lifting mechanism, and the lifting mechanism drives the movable cabinet to move relative to the fixed cabinet, so that the movable cabinet can be stored in the fixed cabinet or moved downward from the fixed cabinet.

[0007] The lifting mechanism includes a base installed inside a fixed cabinet. The base is connected to a sliding plate via a guide device, and the sliding plate slides back and forth relative to the base.

[0008] A first swing arm and a second swing arm are hingedly mounted on the sliding plate, and the other end of the first swing arm and the second swing arm is hinged to the movable cabinet.

[0009] A drive arm is also hinged to the sliding plate. The other end of the drive arm is equipped with a linkage device that connects to the base. The drive arm is provided with an outer guide groove, and the sliding plate is provided with an inner guide groove. A guide post is provided on the first swing arm, which passes through the inner guide groove and extends into the outer guide groove. When the first swing arm swings, the sliding plate is driven to slide relative to the base by the compression of the guide post with the inner and outer guide grooves.

[0010] Furthermore, the lifting mechanism is provided in two sets, which are respectively installed between the two inner side walls of the fixed cabinet and the two outer side walls of the movable cabinet.

[0011] Furthermore, the guiding device is a linear guide rail installed on the inner side wall of the base, and several guide wheels on the outer side wall of the sliding plate, which extend into the linear guide rail and slide back and forth.

[0012] Furthermore, the guiding device is a sliding groove set on the base, and a guide wheel is correspondingly provided on the sliding plate, with the guide wheel extending into the sliding groove for sliding.

[0013] Furthermore, the sliding groove is a "C" shape with high sides and low middle.

[0014] Furthermore: the inner guide groove is a C-shaped groove provided around the hinge point between the first swing arm and the sliding plate, and the C-shaped groove extends through the sliding plate.

[0015] Furthermore, the outer guide groove is an "S"-shaped groove that runs through the drive arm.

[0016] Furthermore, the linkage device is a linkage rod hinged to the sliding plate, and the other end of the linkage rod is hinged to the drive arm.

[0017] Furthermore, the linkage device is a linkage rail set on the sliding plate, and a linkage pulley is set on the drive arm, which extends into the linkage rail and slides.

[0018] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0019] The hinge point between the first and second swing arms can move back and forth with the movement of the sliding plate. This design not only avoids interference between the bottom of the movable cabinet and the bottom of the fixed cabinet, but also ensures that the movable cabinet can move more smoothly and flexibly during lifting and lowering. By adjusting the position of the hinge point, the bottom of the movable cabinet can fit more closely to the fixed cabinet, thereby significantly reducing the gap between the two.

[0020] 3. This adjustable hinge design greatly improves space utilization. When the mobile cabinet is closed, the gap between its bottom and the fixed cabinet is reduced, thus making more effective use of limited space. This is especially beneficial in environments with limited space, significantly improving the efficiency of the lift cabinet. Attached Figure Description

[0021] Figure 1 , 2 This is a schematic diagram of the opening process of the mobile cabinet in the first embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the active cabinet after it is closed, according to the first embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure behind the hidden fixed cabinet in the first embodiment of this utility model.

[0024] Figure 5 This is an exploded view of the structure of the first embodiment of this utility model.

[0025] Figure 6 , 7 This is a schematic diagram of the opening process of the mobile cabinet according to the second embodiment of this utility model.

[0026] Figure 8 This is a schematic diagram of the hidden fixed cabinet structure in the second embodiment of this utility model.

[0027] Figure 9 This is an exploded view of the structure of the second embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. A lifting cabinet includes a fixed cabinet 1 and a movable cabinet 2. The fixed cabinet 1 and the movable cabinet 2 are connected by a lifting mechanism. The lifting mechanism drives the movable cabinet 2 to move relative to the fixed cabinet 1, so that the movable cabinet 2 can be stored in the fixed cabinet 1 or moved downward from the fixed cabinet 1.

[0029] The lifting mechanism includes a base 3 installed in the fixed cabinet 1. The base 3 is connected to the sliding plate 4 through a guide device. The sliding plate 4 slides back and forth relative to the base 3.

[0030] The sliding plate 4 is hinged to a first swing arm 5 and a second swing arm 6, and the other end of the first swing arm 5 and the second swing arm 6 is hinged to the movable cabinet 2.

[0031] A drive arm 7 is also hinged to the sliding plate 4. The other end of the drive arm 7 is provided with a linkage device connected to the base 3. The drive arm 7 is provided with an outer guide groove 71, and the sliding plate 4 is provided with an inner guide groove 41. A guide post 51 is provided on the first swing arm 5, which passes through the inner guide groove 41 and extends into the outer guide groove 71. When the first swing arm 5 swings, the sliding plate 4 is driven to slide relative to the base 3 by the compression of the guide post 51 with the inner guide groove 41 and the outer guide groove 71.

[0032] In one embodiment, two sets of lifting mechanisms are provided, which are respectively installed between the two inner side walls of the fixed cabinet 1 and the two outer side walls of the movable cabinet 2.

[0033] In one embodiment: the guiding device is a linear guide rail 31 installed on the inner side wall of the base 3, and a plurality of guide wheels 42 on the outer side wall of the sliding plate 4, the guide wheels 42 extending into the linear guide rail 31 and sliding back and forth.

[0034] In one embodiment: the guiding device is a sliding groove 32 provided on the base 3, and a guide wheel 42 is correspondingly provided on the sliding plate 4, the guide wheel 42 extending into the sliding groove 32 to slide.

[0035] In one embodiment, the sliding groove 32 is a "C"-shaped configuration with high sides and low middle.

[0036] In one embodiment: the inner guide groove 41 is a C-shaped groove provided around the hinge point between the first swing arm 5 and the sliding plate 4, and the C-shaped groove passes through the sliding plate 4.

[0037] In one embodiment: the outer guide groove 71 is an "S"-shaped groove that runs through the drive arm 7.

[0038] In one embodiment: the linkage device is a linkage rod 43 hingedly mounted on the sliding plate 4, and the other end of the linkage rod 43 is hinged to the drive arm 7.

[0039] In one embodiment: the linkage device is a linkage rail 44 set on the sliding plate 4, and a linkage pulley 72 is set on the drive arm 7, which extends into the linkage rail 44 and slides.

[0040] Working principle: This utility model's lifting cabinet achieves lifting movement between the fixed cabinet and the movable cabinet through an innovative lifting mechanism. The lifting mechanism mainly consists of a base, sliding plate, swing arm, drive arm, and linkage device.

[0041] Specifically, the lifting mechanism includes a base 3 installed inside the fixed cabinet. The base is connected to a sliding plate 4 via a guide device, and the sliding plate 4 can slide back and forth relative to the base 3. When the lifting mechanism is activated, the drive arm 7 drives the sliding plate 4 to slide back and forth via a linkage device, such as a linkage rod or linkage pulley, thereby driving the movable cabinet 2 to move back and forth along the horizontal direction of the fixed cabinet 1.

[0042] Specifically, a first swing arm 5 and a second swing arm 6 are hinged to the sliding plate 4, with their other ends hinged to the movable cabinet 2. When the sliding plate 4 moves back and forth, the first swing arm 5 and the second swing arm 6 drive the movable cabinet 2 to move up and down. In particular, the hinge point of the first swing arm 5 and the second swing arm 6 can move back and forth with the movement of the sliding plate 4. This design allows the bottom of the movable cabinet to better avoid the bottom structure of the fixed cabinet during lifting and lowering, avoiding the waste of space caused by a fixed hinge point design.

[0043] Because the hinge point between the first and second swing arms can move back and forth with the sliding plate 4, the bottom of the movable cabinet 2 can be perfectly avoided from the fixed cabinet 1 when it is raised and lowered. When the movable cabinet 2 is completely stored inside the fixed cabinet 1, the bottom gap becomes very small, thus greatly improving the utilization of space. This structure is particularly advantageous in environments requiring compact space design.

[0044] The drive arm 7 is connected to the base 3 via a linkage device. The outer guide groove 71 on the drive arm cooperates with the inner guide groove 41 on the sliding plate to ensure smooth movement between the sliding plate 4 and the base 3. The guide column 51 is fixed on the first swing arm 5, passes through the inner guide groove 41, and extends into the outer guide groove 71. This ensures that when the first swing arm 5 swings, the sliding plate 4 slides relative to the base 3 through the compression of the guide column 51 and the inner and outer guide grooves. This allows the movable cabinet to move horizontally back and forth relative to the fixed cabinet while being raised and lowered, so that the bottom of the movable cabinet can avoid misalignment with the bottom of the fixed cabinet. Therefore, compared with the traditional four-bar lifting mechanism, the first and second swing arms in this case can be designed to be shorter, resulting in a smaller gap between the bottom of the movable cabinet and the fixed cabinet after the movable cabinet enters the fixed cabinet, thereby improving the space utilization rate.

[0045] Compared to traditional technologies, this invention solves the problem of a large gap between the bottom of the movable cabinet and the fixed cabinet in existing technologies by setting an adjustable hinge point for the swing arms. During the lifting and lowering process of the movable cabinet, the hinge point between the first and second swing arms can be adjusted with the forward and backward movement of the sliding plate, allowing the bottom of the movable cabinet to be more tightly housed within the fixed cabinet, minimizing the gap. This design significantly improves space utilization, is particularly suitable for compact environments, and reduces problems caused by wasted space.

[0046] Through the detailed explanation of the working principle described above, it is clear that this utility model is not only innovative in its lifting function, but also greatly improves space utilization efficiency through its adjustable front and rear swing arm hinge point design, avoiding the space waste problem common in existing technologies. These technical advantages give this utility model broad application prospects and significant market value.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this invention.

Claims

1. A lifting cabinet comprising a stationary cabinet (1) and a movable cabinet (2), characterized in that: The fixed cabinet (1) and the movable cabinet (2) are connected through a lifting mechanism, the lifting mechanism drives the movable cabinet (2) to move relative to the fixed cabinet (1), and the movable cabinet (2) is realized to be stored into the fixed cabinet (1) or to be moved downward from the fixed cabinet (1); The lifting mechanism comprises a base (3) installed in the fixed cabinet (1), the base (3) is connected with a sliding plate (4) through a guide device, and the sliding plate (4) slides forward and backward relative to the base (3); The first swing arm (5) and the second swing arm (6) are hingedly installed on the sliding plate (4), and the other ends of the first swing arm (5) and the second swing arm (6) are hingedly connected with the movable cabinet (2); The driving arm (7) is hingedly installed on the sliding plate (4), and the other end of the driving arm (7) is provided with a linkage device and is connected with the base (3), the driving arm (7) is provided with an outer guide groove (71), the sliding plate (4) is provided with an inner guide groove (41), and a guide column (51) is arranged on the first swing arm (5) and extends into the outer guide groove (71) after penetrating through the inner guide groove (41); when the first swing arm (5) swings, the sliding plate (4) slides relative to the base (3) through the extrusion of the guide column (51), the inner guide groove (41) and the outer guide groove (71).

2. A lift cabinet according to claim 1, characterized in that: The lifting mechanism is provided with two sets, which are respectively installed between the two inner side walls of the fixed cabinet (1) and the two outer side walls of the movable cabinet (2).

3. The lift cabinet of claim 1, wherein: The guide device is a linear guide rail (31) installed on the inner side wall of the base (3), and a plurality of guide wheels (42) are arranged on the outer side wall of the sliding plate (4) and extend into the linear guide rail (31) to slide forward and backward.

4. The lift cabinet of claim 1, wherein: The guide device is a sliding groove (32) arranged on the base (3), and a guide wheel (42) is correspondingly arranged on the sliding plate (4) and extends into the sliding groove (32) to slide.

5. A lift cabinet as claimed in claim 4, wherein: The sliding groove (32) is arranged in a "C" shape with high sides and a low middle.

6. A lift cabinet as claimed in claim 1, wherein: The inner guide groove (41) is a C-shaped groove arranged around the hinge joint of the first swing arm (5) and the sliding plate (4) and penetrating through the sliding plate (4).

7. A lift well according to claim 1, wherein: The outer guide groove (71) is an "S"-shaped groove penetrating through the driving arm (7).

8. The lift cabinet of claim 1, wherein: The linkage device is a linkage rod (43) hingedly installed on the sliding plate (4), and the other end of the linkage rod (43) is hingedly connected with the driving arm (7).

9. A lift cabinet as claimed in claim 1, wherein: The linkage device is a linkage track (44) arranged on the sliding plate (4), and a linkage pulley (72) is arranged on the driving arm (7) and extends into the linkage track (44) to slide.

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