Cabinet lifting mechanism and lifting cabinet

Abstract

The utility model discloses a cabinet lifting mechanism, including fixed frame and lifting frame, the fixed frame includes top crossbeam, bottom crossbeam and two side frames of both ends fixed connection, the lifting frame includes the lateral plate of the outside wall sliding connection of side frame, the top of lateral plate is provided with the top plate, and the bottom of lateral plate is provided with the bottom plate, the top of top plate, bottom plate can be provided with the connecting portion of fixed connection with cabinet respectively, the bottom of lateral plate is provided with push -and -pull arm, the top crossbeam of fixed frame is connected with lifting frame through lifter, the lifter includes optional stop air spring, the fixed end of optional stop air spring is fixedly connected with the inner side wall of top crossbeam, and the movable end of optional stop air spring is fixedly connected with bottom plate. The structure of this cabinet lifting mechanism that realizes the cabinet and lifting frame optional lifting through optional stop air spring is lower in manufacturing cost than the lifting mechanism of existing lifting cabinet, and its subsequent maintenance cost is also lower.

Description

Technical Field

[0001] This utility model relates to the technical field of home storage tools, and in particular to a cabinet lifting mechanism and a lifting cabinet. Background Technology

[0002] With the rapid development of technology in my country's building decoration field, interior space utilization-efficient design is gaining an increasingly larger market share. Among these, lift cabinets effectively utilize spaces with high ceilings, and are therefore widely used in kitchen cabinets, wardrobes, and display cabinets. Existing lift cabinets primarily connect to a fixed cabinet panel via an electric lifting mechanism, with the mechanism controlling the cabinet's movement. For example, Chinese utility model patent application CN106016408A discloses an electric intelligent lifting storage mechanism. This mechanism includes an active linkage, a driven linkage, and an electric lifting control box. The control box cover houses a motor mounting box, a motor, and a backup power supply. The motor's output force acts simultaneously within the control box, achieving fully synchronized movement on both sides. The driven wheel has an adjustable groove and a limit switch rod installed within it. During assembly, adjusting the limit switch rod prevents errors from causing the optimal lifting position to be missed. The spring tension reduces the motor load and extends its lifespan. However, the existing technologies represented by the above solutions have complex structures and high manufacturing and subsequent maintenance costs. Summary of the Invention

[0003] This utility model first proposes a cabinet lifting mechanism, aiming to develop a cabinet lifting mechanism with a relatively simple structure and low manufacturing and subsequent maintenance costs.

[0004] This utility model discloses a cabinet lifting mechanism, comprising a fixed frame and a lifting frame. The fixed frame includes a top crossbeam, a bottom crossbeam, and two side frames fixedly connected to both ends thereto. The lifting frame includes a side plate slidably connected to the outer side wall of the side frame. A top plate is provided at the upper top of the side plate, and a bottom plate is provided at the upper bottom of the side plate. The upper ends of the top plate and the bottom plate may be provided with connecting parts fixedly connected to the cabinet. A push-pull arm is provided at the bottom of the side plate. The top crossbeam of the fixed frame is connected to the lifting frame through a lifting device. The lifting device includes a freely adjustable gas spring. The fixed end of the freely adjustable gas spring is fixedly connected to the inner side wall of the top crossbeam, and the movable end of the freely adjustable gas spring is fixedly connected to the bottom plate.

[0005] Optionally, the lifting device also includes a movable wheel, a fixed wheel, and a cable. The fixed wheel is located on the inner wall of the top crossbeam. The rotating shaft of the movable wheel is fixedly connected to the movable end of the arbitrarily stopped air spring. One end of the cable is fixed to the inner wall of the top crossbeam, and the other end of the cable passes around the movable wheel and the fixed wheel and is fixedly connected to the top plate.

[0006] Optionally, a first middle crossbeam is fixedly arranged between the side frames. The first middle crossbeam is fixedly connected to the fixed end of the arbitrarily stopped air spring. A guide rod parallel to the side frames is arranged between the first middle crossbeam and the bottom crossbeam. A slider is fixedly connected to the rotating shaft of the movable wheel. The slider is slidably connected to the guide rod through a sliding hole.

[0007] Optionally, the guide rods are a set arranged opposite each other on both sides of the movable wheel.

[0008] Optionally, a first guide plate is provided on the outer side of the side frame. The first guide plate has a U-shaped structure. The side plate is slidably connected to the first guide plate. T-shaped connecting parts are provided on both sides of the top plate and the bottom plate. The T-shaped connecting parts are fixedly connected to the side plate.

[0009] Optionally, the top plate and bottom plate are provided with fixing ears.

[0010] Optionally, the bottom of the base plate is provided with an upwardly protruding baffle.

[0011] Optionally, a second crossbeam is provided between the first middle crossbeam and the top crossbeam, and a second guide plate parallel to the side frame is provided on the second crossbeam and the bottom crossbeam. Guide blocks matching the second guide plate are provided at the bottom of the top plate and the bottom plate.

[0012] Optionally, the push-pull arm includes a push-pull rod and an L-shaped connecting plate, one end of which is fixedly connected to the push-pull rod, and the other end is fixedly connected to the T-shaped connecting part of the base plate.

[0013] This utility model also provides a lifting cabinet that uses the above-mentioned cabinet lifting mechanism, wherein the fixing frame is fixedly installed on the inner side of the fixed cabinet surface of the lifting cabinet.

[0014] The beneficial effects of this utility model are: In this embodiment of the utility model, the cabinet lifting mechanism is used such that, with the fixed frame secured, pulling down the push-pull rod causes the lifting frame to move the cabinet under the combined force of the pull and the cabinet's weight. When the push-pull rod is stopped, the movable end of the arbitrarily stopped gas spring provides a reverse pulling force to counteract the weight of the cabinet and the lifting frame, allowing the cabinet to reach a arbitrarily stopped state. When the push-pull rod is pushed upward, the cabinet and the lifting frame move upward under the pushing force until they reach the starting point of the arbitrarily stopped gas spring's stroke. This cabinet lifting mechanism, which achieves arbitrary lifting of the cabinet and lifting frame via an arbitrarily stopped gas spring, has a lower manufacturing cost and lower subsequent maintenance cost compared to existing lifting cabinet mechanisms.

[0015] In addition, by using movable wheels to increase the lifting stroke of the lifting frame and fixed wheels to change the direction of cable pulling, a relatively small, freely adjustable air spring can be selected to match the lifting frame. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a cabinet lifting mechanism according to an embodiment of the present utility model; Figure 2 This is an exploded view of the parts of a cabinet lifting mechanism according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the cabinet lifting mechanism in a pulled-down state according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the cabinet lifting mechanism in the installation state of the cabinet according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of a lifting cabinet according to an embodiment of the present utility model; Figure 6 This is a cross-sectional view of a lifting cabinet according to an embodiment of the present utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Please refer to Figures 1 to 6This utility model embodiment proposes a cabinet lifting mechanism, which includes a fixed frame 01 and a lifting frame 05. The fixed frame is used for fixed connection to a fixed surface such as a wall or cabinet surface G1, while the lifting frame is used for fixed connection to a cabinet G2 where items are placed. The fixed frame 01 includes a top crossbeam 011 and a bottom crossbeam 012, with two side frames 013 fixedly connected to both ends of the top and bottom crossbeams, forming a rectangular frame. The lifting frame 05 includes a side plate 051 that is slidably connected to the outer wall of the side frame 013. The side plate has a C-shaped cross-section, i.e., a sliding connection state that matches the groove of the side frame. The top of the side panel 051 is provided with a top plate 052, and the bottom of the side panel 051 is provided with a bottom plate 053. The top plate 052 and the bottom plate 053 may each be provided with a connecting part that is fixedly connected to the cabinet G2. The connecting part may be a fixing ear 054, which is fixedly connected to the cabinet by fixing screws. The bottom of the side panel 051 is provided with a push-pull arm 055, which includes a push-pull rod 056 and an L-shaped connecting plate 057. One end of the L-shaped connecting plate 057 is fixedly connected to the push-pull rod 056, and the other end of the L-shaped connecting plate can be connected to the bottom of the side panel. The top crossbeam 011 of the fixed frame 01 is connected to the lifting frame 05 through a lifting device 07. The lifting device 07 includes a freely adjustable gas spring 071. The fixed end of the freely adjustable gas spring 071 is fixedly connected to the inner wall of the top crossbeam 011, and the movable end of the freely adjustable gas spring 071 is fixedly connected to the bottom plate 053.

[0021] During use, the mounting bracket is fixed in place. Pulling down the push-pull rod causes the lifting frame to move the cabinet under the combined force of the pull and the cabinet's weight. When the push-pull rod is stopped, the movable end of the arbitrarily stopped gas spring provides a reverse pull to counteract the weight of the cabinet and lifting frame, allowing the cabinet to stop arbitrarily. Pushing the push-pull rod upwards causes the cabinet and lifting frame to move upwards under the thrust until the arbitrarily stopped gas spring reaches its travel limit. This cabinet lifting mechanism, which uses an arbitrarily stopped gas spring to achieve arbitrary raising and lowering of the cabinet and lifting frame, has a lower manufacturing cost and subsequent maintenance cost compared to existing lifting cabinet mechanisms.

[0022] To increase the push-pull stroke generated by the arbitrarily stopped air spring, the lifting device 07 also includes a movable wheel 072, a fixed wheel 073, and a cable 075. The fixed wheel 073 is located on the inner wall of the top crossbeam 011, or in the fixed groove 015 of the top crossbeam. The pivot 076 of the movable wheel 072 is fixedly connected to the movable end of the arbitrarily stopped air spring 071. One end of the cable 075 is fixed to the inner wall of the top crossbeam 011, and the other end of the cable 075 passes around the movable wheel 072, then around the fixed wheel 073 to achieve a turn before being fixedly connected to the top plate 052.

[0023] Pull down the push rod (e.g.) Figure 4The lifting frame moves the cabinet under the combined force of tension and the cabinet's weight. The top plate of the lifting frame pulls the movable end of the cable downwards, causing the movable wheel to move upwards. This movable wheel, in turn, moves the movable end of the arbitrarily stopped gas spring upwards. When the push-pull rod is stopped, the downward thrust of the arbitrarily stopped gas spring on the movable wheel is converted into an upward pulling force through the cable, counteracting the weight of the lifting frame and cabinet. To ensure the movable wheel moves up and down with the lifting frame, the cable completes a full rotation within the wheel's groove, effectively enclosing the wheel. To close the lifting cabinet, the push-pull rod is pushed upwards, causing the free end of the arbitrarily stopped gas spring to push downwards. This, in turn, pushes the movable end of the cable upwards through the movable wheel until the free end of the arbitrarily stopped gas spring reaches its maximum travel. By increasing the lifting frame's travel with the movable wheel and changing the direction of the cable pull with the fixed wheel, a relatively small arbitrarily stopped gas spring can be selected to match the lifting frame.

[0024] It is understandable that by combining the above set of movable and fixed wheels, the stroke of the lifting frame can be made twice the push-pull stroke of the freely stop air spring. Accordingly, if it is necessary to further increase the lifting stroke of the lifting frame, the number of sets of movable and fixed wheels can be further increased.

[0025] To reduce the swaying of the fixed wheel during the vertical lifting process, in one embodiment, a first middle crossbeam 016 is fixedly arranged between the side frames 013. The first middle crossbeam 016 is fixedly connected to the fixed end of the arbitrarily stopped air spring 071. A guide rod 017 parallel to the side frames 013 is arranged between the first middle crossbeam 016 and the bottom crossbeam 012. A slider 077 is fixedly connected to the pivot 076 of the movable wheel 072. The slider 077 is slidably connected to the guide rod 017 through a sliding hole 078.

[0026] It is worth noting that the guide rods are a set arranged opposite each other on both sides of the movable wheel.

[0027] To reduce the swaying of the lifting frame, in one embodiment, a first guide plate 018 is provided on the outer side of the side frame 013. The first guide plate 018 has a U-shaped structure. The U-shaped structure forms a semi-enclosed shape for the side plate, meaning that the side plate 051 can be slidably connected within the first guide plate 018. T-shaped connecting portions 058 are provided on both sides of the top plate 052 and the bottom plate 053, and the T-shaped connecting portions 058 are fixedly connected to the side plate 051. The L-shaped connecting plate of the push-pull arm is fixedly connected to the T-shaped connecting portion of the bottom plate 053. To increase the bottom support for the cabinet, an upwardly protruding baffle 059 is provided at the bottom of the bottom plate 053.

[0028] To further reduce the swaying of the lifting frame, in one embodiment, a second crossbeam 019 is provided between the first middle crossbeam 016 and the top crossbeam 011. A second guide plate 020 parallel to the side frame 013 is provided on the second crossbeam 019 and the bottom crossbeam 012. Guide blocks 060 matching the second guide plate 020 are provided at the bottom of the top plate 052 and the bottom plate 053. The second guide plate also has a U-shaped structure. The U-shaped structure partially encloses the guide block, meaning the guide block 060 can be slidably connected within the second guide plate 020.

[0029] This utility model embodiment also provides a lifting cabinet using the cabinet lifting mechanism described above. The lifting mechanism of this lifting cabinet is fixed to the cabinet surface G1 or the wall via a fixing frame, such as by screws or rivets. The lifting frame of the lifting mechanism is fixedly connected to the cabinet G2 where items are placed. The cabinet can be pulled out or pushed back by pushing and pulling the push rod of the lifting mechanism, so as to facilitate the retrieval and placement of items in the lifting cabinet installed at a high position.

[0030] In the application scenario of kitchen cabinets, the cabinet surface is a three-sided cabinet, the fixed frame is fixed to the wall, and in order to facilitate the pushing and pulling of the push-pull rod, the L-shaped connecting plate of the push-pull arm extends outward.

[0031] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0032] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cabinet lifting mechanism, comprising a fixed frame and a lifting frame, characterized in that, The fixed frame includes a top crossbeam, a bottom crossbeam, and two side frames fixedly connected to both ends; the lifting frame includes a side plate slidably connected to the outer side wall of the side frame, a top plate is provided at the top of the side plate, and a bottom plate is provided at the bottom of the side plate. The top plate and the bottom plate may be provided with connecting parts fixedly connected to the cabinet at their upper ends, and a push-pull arm is provided at the bottom of the side plate; the top crossbeam of the fixed frame is connected to the lifting frame through a lifting device, the lifting device including a freely stop gas spring, the fixed end of the freely stop gas spring being fixedly connected to the inner side wall of the top crossbeam, and the movable end of the freely stop gas spring being fixedly connected to the bottom plate.

2. The cabinet lifting mechanism as described in claim 1, characterized in that, The lifting device also includes a movable wheel, a fixed wheel, and a cable. The fixed wheel is located on the inner wall of the top crossbeam. The rotating shaft of the movable wheel is fixedly connected to the movable end of the arbitrarily stopped air spring. One end of the cable is fixed to the inner wall of the top crossbeam, and the other end of the cable passes around the movable wheel and the fixed wheel and is fixedly connected to the top plate.

3. The cabinet lifting mechanism as described in claim 2, characterized in that, A first middle crossbeam is fixedly installed between the side frames. The first middle crossbeam is fixedly connected to the fixed end of the arbitrarily stopped air spring. A guide rod parallel to the side frames is installed between the first middle crossbeam and the bottom crossbeam. A slider is fixedly connected to the rotating shaft of the movable wheel. The slider is slidably connected to the guide rod through a sliding hole.

4. The cabinet lifting mechanism as described in claim 3, characterized in that, The guide rods are a set arranged opposite each other on both sides of the movable wheel.

5. The cabinet lifting mechanism as described in claim 3, characterized in that, A first guide plate is provided on the outer side of the side frame. The first guide plate has a U-shaped structure. The side plate is slidably connected to the first guide plate. T-shaped connecting parts are provided on both sides of the top plate and the bottom plate. The T-shaped connecting parts are fixedly connected to the side plate.

6. The cabinet lifting mechanism as described in claim 5, characterized in that, The top plate and bottom plate are provided with fixing ears.

7. The cabinet lifting mechanism as described in claim 6, characterized in that, The bottom of the base plate is provided with an upwardly protruding baffle.

8. The cabinet lifting mechanism as described in claim 5, characterized in that, A second crossbeam is provided between the first middle crossbeam and the top crossbeam. A second guide plate parallel to the side frame is provided on the second crossbeam and the bottom crossbeam. Guide blocks matching the second guide plate are provided at the bottom of the top plate and the bottom plate.

9. The cabinet lifting mechanism as described in claim 5, characterized in that, The push-pull arm includes a push-pull rod and an L-shaped connecting plate. One end of the L-shaped connecting plate is fixedly connected to the push-pull rod, and the other end is fixedly connected to the T-shaped connecting part of the base plate.

10. A lifting cabinet, equipped with the cabinet lifting mechanism according to any one of claims 1 to 9, characterized in that, The mounting bracket is fixedly installed on the inside of the mounting cabinet surface of the lifting cabinet.

Images