A new type of hanging cabinet lifting storage rack capable of lifting up and down through a lifter

Abstract

The utility model discloses a novel hanging cabinet lifting storage rack capable of lifting up and down through lifter, relates to the technical field of cabinet, and solves the problem of poor installation adaptability and lack of anti-falling protection of the existing storage rack. It includes storage rack body, two lifter, two limit cylinder, locking assembly and distance adjusting assembly, the storage rack body contains side plate, upper and lower layer storage rack, and the side plate is hinged with parallel active connecting rod and passive connecting rod, the installation chamber and guide long hole are equipped in the lifter, and the connecting rod is hinged into the chamber, the limit cylinder is hinged in the active connecting rod and the chamber bottom, the locking assembly contains tension spring, chain, guide sprocket and locking switch, realizes reset locking, the distance adjusting assembly contains adjusting plate and adjusting pipe, and is suitable for different cabinet size. The utility model improves the installation flexibility and use safety, and the structure is stable, convenient operation is applicable to the efficient use of family hanging cabinet space.

Description

Technical Field

[0001] This utility model relates to the field of cabinet technology, and in particular to a novel hanging cabinet lifting shelf that can be raised and lowered by a lifting device. Background Technology

[0002] With the continuous improvement of residents' living standards, the quantity and variety of daily household items have shown a significant upward trend. From pots, pans, and spice jars in the kitchen to snacks and daily necessities in the living room, all need to be properly organized to avoid clutter. Against this backdrop, storage racks, as tools that can effectively utilize space and organize items, are increasingly widely used in family life. In particular, lift-up storage racks inside wall cabinets have become a popular choice for many families because they can make full use of the upper space of wall cabinets and reduce the difficulty of reaching items from high places.

[0003] However, existing wall-mounted lift-up storage racks on the market still have many shortcomings in structural design and practical use that urgently need to be addressed, specifically in the following aspects: Poor installation adaptability and low space utilization: The existing shelving structure design generally lacks flexibility. The installation process requires strict matching with the fixed dimensions of the cabinet. If there is a slight width error in the cabinet production process, or if the user changes the cabinet, the shelving cannot be installed, resulting in the problem of "size mismatch means scrap".

[0004] The lack of fall protection poses a significant safety hazard: Currently, all similar lifting shelves lack protective structures against "overloaded falls." When many heavy items are placed on the shelf, or when the transmission structure wears out or loosens after long-term use, the shelf may suddenly fall due to the inability to bear the weight. This fall could not only cause items inside to fall and be damaged, but could also injure the user's hands, head, or other parts of the body during retrieval, posing a serious safety risk and failing to meet the "safety first" requirement for home use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a new type of hanging cabinet lifting storage rack that can be raised and lowered by a lifting device, which can improve the installation adaptability of the storage rack, prevent the storage rack from falling due to overweight, improve space utilization and safety.

[0006] This utility model discloses a novel hanging cabinet lifting shelf that can be raised and lowered via a lifting device. It includes a shelf body, which comprises two side panels and an upper shelf and a lower shelf installed between the two side panels. An active link and a passive link are hinged to the top of the outer side walls of both side panels, and the active link and passive link are arranged in parallel. The shelf also includes: The device includes two lifting mechanisms located on the left and right sides of the shelf body. Each lifting mechanism has an installation chamber. The front side wall and the top front side of the installation chamber, near the shelf body, are connected by guide holes. Both the active and passive connecting rods extend into the installation chamber through the guide holes. One end of the passive connecting rod inside the installation chamber is hinged to the front bottom of the side wall of the installation chamber near the shelf body. The active connecting rod is hinged to the side wall of the installation chamber near the shelf body. The distance between the hinge point of the active connecting rod and the installation chamber and the hinge point of the active connecting rod and the side plate is equal to the distance between the two hinge points of the passive connecting rod. Limit cylinders are provided. Two limit cylinders are provided. The two limit cylinders are located in the mounting chambers of the two lifters respectively. One end of the limit cylinder is hinged to the end of the active connecting rod located in the mounting chamber, and the other end is hinged to the rear side of the bottom of the mounting chamber. The installation chamber of the lifter is equipped with a locking component, which is used to lock the position of the shelf body after it is reset. A distance adjustment component is provided on the outside of the elevator.

[0007] Furthermore, the locking assembly includes a first tension spring, a chain, and a second tension spring. A first guide sprocket is rotatably mounted on the front top of the mounting chamber of the lifting device, and a second guide sprocket is rotatably mounted on the front bottom of the mounting chamber. One end of the chain is connected to the first tension spring, and the chain passes sequentially around the first and second guide sprockets. The first and second guide sprockets are used for guiding and supporting the chain. The other end of the chain is connected to the second tension spring. The fixed end of the first tension spring is connected to an active connecting rod. This connection point is located between the two hinge points of the active connecting rod and close to the hinge point inside the mounting chamber of the active connecting rod. The fixed end of the second tension spring is connected to the hinge point of the limiting cylinder at the rear bottom of the mounting chamber. A locking switch for chain limiting is provided in the middle of the front end of the lifting device. The elastic force of the first tension spring is greater than that of the second tension spring.

[0008] Furthermore, the locking switch includes a switch housing, a fixing hole is provided through the center of the front end of the lifting device, the switch housing is installed in the fixing hole, a pin is removably installed inside the switch housing, and a pin head is provided at the rear end of the pin. When the pin is pressed on the switch housing, the pin head can be engaged into the hole of the chain to restrict the movement of the chain.

[0009] Furthermore, the distance adjustment assembly includes a distance adjustment plate and several adjustment tubes. The adjustment tubes are provided with internal threads. Several telescopic tubes are evenly distributed along the edge of the installation chamber of the lifter. Several through holes are provided through the outer wall of the installation chamber. The position and number of through holes are adapted to the telescopic tubes. Several insertion holes are provided through the inner wall of the installation chamber, which is connected to the several telescopic tubes. Positioning holes are provided through the faces of the several adjustment tubes facing the distance adjustment plate. A screw is installed in each adjustment tube, so that the screw protrudes from the positioning hole. Then, the distance adjustment plate is installed on the side wall of the cabinet of the shelf body to be installed using the screws on the several adjustment tubes. The lifter is close to the distance adjustment plate, so that the several adjustment tubes pass through the several through holes and extend into the several telescopic tubes. Several long screws pass through the several insertion holes and are threadedly connected to the several adjustment tubes.

[0010] Furthermore, each of the installation chambers of the lifting device is equipped with an auxiliary tension spring. One end of the auxiliary tension spring is connected to the upper-middle area of ​​the rear end of the installation chamber, and the other end is connected to the active connecting rod. The connection point is located between the two hinge points of the active connecting rod.

[0011] Furthermore, a load-bearing button is provided at the front end of the pin.

[0012] Furthermore, the side wall of the switch housing is provided with a limiting shaft, and the side wall of the pin is provided with a limiting groove, which is slidably engaged with the limiting shaft.

[0013] Furthermore, a handle is provided at the bottom of the lower shelf.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Improve installation adaptability and increase space utilization: The distance adjustment component can flexibly adapt to cabinets of different widths, solving the problem of traditional shelves being unable to be installed or scrapped due to size mismatch, and adapting to cabinet production errors and replacement needs.

[0015] Eliminate the safety hazard of falling due to overweight: By using the synergistic action of the locking components and the limit cylinder, the shelf can be reset and locked, and fall protection can be achieved when overweight or structurally worn, so as to avoid damage to items and injury to users.

[0016] Optimized ease of use: The storage rack is raised and lowered via a handle, and the load-bearing button controls the locking switch. The ergonomic design reduces the difficulty of taking and placing items.

[0017] Enhanced structural stability and service life: Components such as auxiliary tension springs and guide sprockets optimize force transmission, reduce wear on the transmission structure, and improve the smoothness of the shelf's lifting process and its long-term reliability. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is an internal structural diagram of the lifting device of this utility model; Figure 3 This is the utility model Figure 2 A magnified schematic diagram of the structure of part A in the diagram; Figure 4 This is the utility model Figure 2 A magnified schematic diagram of the partial structure of B in the diagram; Figure 5 This is a schematic diagram of the connection structure between the pin and the switch housing of this utility model; Figure 6 This is a schematic diagram of the connection structure between the regulating tube and the lifting device of this utility model; The following are labels in the attached diagram: 1. Side panel; 2. Upper shelf; 3. Lower shelf; 4. Active linkage; 5. Passive linkage; 6. Lifter; 7. Limit cylinder; 8. First tension spring; 9. Chain; 10. Second tension spring; 11. First guide sprocket; 12. Second guide sprocket; 13. Switch housing; 14. Pin; 15. Pin head; 16. Distance adjustment plate; 17. Adjustment tube; 18. Auxiliary tension spring; 19. Load-bearing button; 20. Limit shaft; 21. Limit groove; 22. Handle. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] like Figures 1 to 6 As shown, this utility model discloses a novel hanging cabinet lifting shelf that can be raised and lowered via a lifting device. It includes a shelf body, which comprises two side panels and an upper shelf and a lower shelf installed between the two side panels. An active link and a passive link are hinged to the top of the outer side walls of both side panels, and the active link and passive link are arranged in parallel. The shelf also includes: The device includes two lifting mechanisms located on the left and right sides of the shelf body. Each lifting mechanism has an installation chamber. The front side wall and the top front side of the installation chamber, near the shelf body, are connected by guide holes. Both the active and passive connecting rods extend into the installation chamber through the guide holes. One end of the passive connecting rod inside the installation chamber is hinged to the front bottom of the side wall of the installation chamber near the shelf body. The active connecting rod is hinged to the side wall of the installation chamber near the shelf body. The distance between the hinge point of the active connecting rod and the installation chamber and the hinge point of the active connecting rod and the side plate is equal to the distance between the two hinge points of the passive connecting rod. Limit cylinders are provided. Two limit cylinders are provided. The two limit cylinders are located in the mounting chambers of the two lifters respectively. One end of the limit cylinder is hinged to the end of the active connecting rod located in the mounting chamber, and the other end is hinged to the rear side of the bottom of the mounting chamber. The installation chamber of the lifter is equipped with a locking component, which is used to lock the position of the shelf body after it is reset. A distance adjustment component is provided on the outside of the lifting device; In this embodiment, Shelf body: used to place items. The side panels provide a hinged mounting base for the active and passive linkages, ensuring the stability of the transmission structure.

[0021] Active / passive linkages: forming a parallelogram transmission structure to ensure that the shelf remains horizontal during pull-down and lifting, achieving smooth lifting and lowering.

[0022] The lifting device provides a closed installation chamber for the connecting rod, limit cylinder, locking components, etc. The guide elongated hole precisely restricts the movement trajectory of the connecting rod, avoids deviation, and ensures lifting accuracy.

[0023] Limit cylinder: It plays a role in slow descent and slow ascent throughout the process. When pulling down, it buffers the weight of the shelf to prevent it from falling rapidly; when lifting and resetting, it buffers the upward impact force and works with the active linkage to initially limit the position of the shelf.

[0024] Locking components: After the shelf is manually lifted and reset, it achieves a second precise locking through a mechanical structure, which, together with the limit cylinder and auxiliary tension spring, further stabilizes the position and prevents accidental movement.

[0025] Distance adjustment component: The adjustable structure adapts to cabinets of different widths, solving the problem of mismatched installation dimensions of traditional shelves and improving installation flexibility and applicability.

[0026] As a preferred embodiment of the above embodiment, the locking assembly includes a first tension spring, a chain, and a second tension spring. A first guide sprocket is rotatably mounted on the front top of the mounting chamber of the lifting device, and a second guide sprocket is rotatably mounted on the front bottom of the mounting chamber. One end of the chain is connected to the first tension spring, and the chain passes sequentially around the first guide sprocket and the second guide sprocket. The first guide sprocket and the second guide sprocket are used for guiding and supporting the chain. The other end of the chain is connected to the second tension spring. The fixed end of the first tension spring is connected to an active connecting rod. The connection point is located between the two hinge points of the active connecting rod and close to the hinge point in the mounting chamber of the active connecting rod. The fixed end of the second tension spring is connected to the hinge point of the limiting cylinder at the rear bottom of the mounting chamber. A locking switch for chain limiting is provided in the middle of the front end of the lifting device. The elastic force of the first tension spring is greater than that of the second tension spring. In this embodiment, First tension spring / second tension spring: synchronously pulls the chain, always keeping the chain taut; after resetting, it works with the chain and locking components to limit the position. The elasticity of the first tension spring is suitable for the limiting requirements of the shelf, and can be selected according to the actual situation.

[0027] Chain: Transmits the tension of the first and second tension springs, ensuring their coordinated action, and provides a locking point for the pin of the locking switch. It is the core transmission and positioning carrier of the locking assembly.

[0028] First guide sprocket / second guide sprocket: Changes the transmission direction of the chain, provides stable guidance and support for the chain, reduces friction and wear during chain movement, ensures uniform transmission of tension spring tension, and maintains chain tension.

[0029] Locking switch: As the control terminal of the locking component, it unlocks and locks the chain through operation, and works with the tension spring and chain to complete the final fixation after the shelf is reset.

[0030] As a preferred embodiment of the above, the locking switch includes a switch housing, a fixing hole is provided through the middle of the front end of the lifting device, the switch housing is installed in the fixing hole, a pin is removably installed inside the switch housing, a pin head is provided at the rear end of the pin, and when the pin is pressed on the switch housing, the pin head can be engaged into the hole of the chain to restrict the movement of the chain. In this embodiment, Switch housing: The overall structure that secures the locking switch, providing precise sliding guidance for the pin, ensuring stable pin movement trajectory, and preventing offset that could lead to locking failure.

[0031] Pin: The state is switched by "pulling out" and "pressing in". When pulled out, the pin head is disengaged from the chain hole. When pressed, the pin head is inserted into the chain hole. It is the core actuator of the control locking component.

[0032] Pin: When unlocking, it disengages from the chain hole, releasing the chain's movement restriction; when locking, it engages with the chain hole, directly restricting the chain's movement, and then transmits force through the chain and tension spring to fix the shelf's position.

[0033] As a preferred embodiment of the above embodiment, the distance adjustment assembly includes a distance adjustment plate and a plurality of adjustment tubes. The adjustment tubes are provided with internal threads. A plurality of telescopic tubes are evenly distributed on the edge of the installation chamber of the lifter. A plurality of through holes are provided through the outer side wall of the installation chamber. The position and number of through holes are adapted to the telescopic tubes. A plurality of insertion holes are provided in the inner side wall of the installation chamber, which is connected to the plurality of telescopic tubes. A positioning hole is provided through the surface of the plurality of adjustment tubes facing the distance adjustment plate. A screw is installed in each adjustment tube and extends out of the positioning hole. Then, the distance adjustment plate is installed on the side wall of the cabinet of the shelf body to be installed by the screws on the plurality of adjustment tubes. The lifter is close to the distance adjustment plate, so that the plurality of adjustment tubes pass through the plurality of through holes and extend into the plurality of telescopic tubes. A plurality of long screws pass through the plurality of insertion holes and are threadedly connected to the plurality of adjustment tubes respectively. In this embodiment, Distance adjustment plate: As a connecting medium between the lifter and the cabinet side wall, it provides a stable installation benchmark and ensures that the lifter is installed firmly as a whole.

[0034] Adjustable tube: The length is adjustable through threaded connection to adapt to cabinets of different widths, solving installation and adaptation problems after cabinet size errors or cabinet replacement.

[0035] Telescopic tube: Provides telescopic space for the adjusting tube, ensuring stability when adjusting the length of the adjusting tube, and precisely matches with the through hole and insertion hole to ensure the connection accuracy between the adjusting tube and the lifting device.

[0036] Screws / long screws: These securely connect the adjusting tube to the distance adjusting plate and the adjusting tube to the lifting device, ensuring the stability of the overall structure after distance adjustment and preventing loosening during lifting. When adjusting the distance, first install the distance adjustment plate on the side wall of the cabinet of the shelf body to be installed with screws. Then install the lifter on the distance adjustment plate with the help of long screws and adjustment tubes. After that, install the shelf body on the active and passive connecting rods on both sides of the lifter. At this time, the long screws can be tightened to complete the installation process.

[0037] As a preferred embodiment of the above, each of the installation chambers of the lifting device is provided with an auxiliary tension spring. One end of the auxiliary tension spring is connected to the upper-middle area of ​​the rear end of the installation chamber, and the other end is connected to the active connecting rod. The connection point is located between the two hinge points of the active connecting rod. In this embodiment, Auxiliary tension spring: One end is connected to the mounting chamber, and the other end is connected to the active linkage. After resetting, it works in conjunction with the limit cylinder to further limit the initial position of the shelf body through the active linkage, providing a positioning basis for the precise locking of the subsequent locking switch; at the same time, it helps to balance the weight of the shelf and reduce the operating force when manually lifting and resetting.

[0038] As a preferred embodiment of the above, a load-bearing button is provided at the front end of the pin; In this embodiment, Load-bearing button: Located at the front end of the pin, it provides users with a convenient operating grip, making it easy for users to pull the pin outward (unlock) and press the pin inward (lock), improving the operating feel and convenience.

[0039] As a preferred embodiment of the above, the side wall of the switch housing is provided with a limiting shaft, and the side wall of the pin is provided with a limiting groove, wherein the limiting groove and the limiting shaft are slidably engaged. In this embodiment, Limiting shaft / limiting groove: Sliding snap-fit ​​fit, precisely limiting the pull-out and pressing stroke of the pin, preventing excessive movement of the pin that could cause it to fall off or not lock properly, ensuring the reliability and safety of the locking switch.

[0040] As a preferred embodiment of the above, the bottom of the lower shelf is provided with a handle; In this embodiment, Handle: Located at the bottom of the lower shelf, it provides users with a point of leverage to pull the shelf down, making it easy for users to pull the shelf down. It is ergonomically designed and reduces the difficulty of operation.

[0041] The working principle of this utility model is as follows: Unlocking operation: Pull out the load-bearing button to move the pin and pin head synchronously, causing the pin head to disengage from the hole in the chain and releasing the chain from its locked state. At this time, the first and second tension springs remain taut, preparing for lifting and lowering.

[0042] Lowering Operation: Pull the shelf body down using the handle. The active and passive linkages rotate around their respective hinge points. The parallelogram structure ensures the shelf descends horizontally. During this process, the limit cylinder provides a slow-descent function, buffering gravity to prevent rapid descent and improving operational safety. As the active and passive linkages rotate, the chain rotates around the first and second guide sprockets under the drive of the first tension spring. During this process, the deformation of the first tension spring is relatively small; the deformation of the second tension spring is the main factor in meeting the chain's displacement requirements.

[0043] Reset Operation: After use, manually lift the shelf body upwards. The active and passive connecting rods rotate in opposite directions to reset the shelf. The limit cylinder simultaneously performs a slow-lift function to buffer the upward impact. During the reset process, the first and second tension springs keep the chain taut, and the auxiliary tension spring, in conjunction with the limit cylinder, initially limits the shelf position through the active connecting rod to ensure accurate reset.

[0044] Locking Operation: After the shelf is fully reset, press the load-bearing button inward to insert the pin into the hole of the chain to complete the chain limit; at this time, the first tension spring, the second tension spring and the chain work together, and at the same time cooperate with the auxiliary tension spring and the limit cylinder, to firmly limit the position of the shelf body through multiple forces, prevent accidental movement, and complete the entire use process.

[0045] The distance adjustment component allows for adjustment of the tube length during installation based on the cabinet width, ensuring a proper fit for the shelving unit.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel hanging cabinet lifting shelf that can be raised and lowered via a lifting device, comprising a shelf body, the shelf body including two side panels and an upper shelf and a lower shelf installed between the two side panels, wherein an active connecting rod and a passive connecting rod are hingedly installed on the top of the outer side walls of both side panels, the active connecting rod and the passive connecting rod being arranged in parallel, characterized in that, Also includes: The device includes two lifting mechanisms located on the left and right sides of the shelf body. Each lifting mechanism has an installation chamber. The front side wall and the top front side of the installation chamber, near the shelf body, are connected by guide holes. Both the active and passive connecting rods extend into the installation chamber through the guide holes. One end of the passive connecting rod inside the installation chamber is hinged to the front bottom of the side wall of the installation chamber near the shelf body. The active connecting rod is hinged to the side wall of the installation chamber near the shelf body. The distance between the hinge point of the active connecting rod and the installation chamber and the hinge point of the active connecting rod and the side plate is equal to the distance between the two hinge points of the passive connecting rod. Limit cylinders are provided. Two limit cylinders are provided. The two limit cylinders are located in the mounting chambers of the two lifters respectively. One end of the limit cylinder is hinged to the end of the active connecting rod located in the mounting chamber, and the other end is hinged to the rear side of the bottom of the mounting chamber. The installation chamber of the lifter is equipped with a locking component, which is used to lock the position of the shelf body after it is reset. A distance adjustment component is provided on the outside of the elevator.

2. The novel hanging cabinet lifting shelf as described in claim 1, characterized in that, The locking assembly includes a first tension spring, a chain, and a second tension spring. A first guide sprocket is rotatably mounted on the front top of the mounting chamber of the lifting device, and a second guide sprocket is rotatably mounted on the front bottom of the mounting chamber. One end of the chain is connected to the first tension spring, and the chain passes sequentially around the first and second guide sprockets. The first and second guide sprockets are used for guiding and supporting the chain. The other end of the chain is connected to the second tension spring. The fixed end of the first tension spring is connected to an active connecting rod. This connection point is located between the two hinge points of the active connecting rod and close to the hinge point inside the mounting chamber of the active connecting rod. The fixed end of the second tension spring is connected to the hinge point of the limiting cylinder at the rear bottom of the mounting chamber. A locking switch for chain limiting is provided in the middle of the front end of the lifting device. The elastic force of the first tension spring is greater than that of the second tension spring.

3. A novel hanging cabinet lifting shelf as described in claim 2, characterized in that, The locking switch includes a switch housing, a fixing hole is provided through the center of the front end of the lifting device, the switch housing is installed in the fixing hole, a pin is installed inside the switch housing and can be pulled out, the rear end of the pin is provided with a pin head, pressing the pin on the switch housing, the pin head can be locked into the hole of the chain to restrict the movement of the chain.

4. A novel hanging cabinet lifting shelf as described in claim 1, characterized in that, The distance adjustment assembly includes a distance adjustment plate and several adjustment tubes. The adjustment tubes have internal threads. Several telescopic tubes are evenly distributed along the edge of the mounting chamber of the lifter. Several through holes are provided through the outer wall of the mounting chamber, their positions and number matching the telescopic tubes. Several insertion holes are provided through the inner wall of the mounting chamber, communicating with the telescopic tubes. Positioning holes are provided through the faces of the adjustment tubes facing the distance adjustment plate. A screw is inserted into each adjustment tube, extending out of the positioning hole. The distance adjustment plate is then installed on the side wall of the cabinet containing the shelf body using the screws on the adjustment tubes. The lifter is close to the distance adjustment plate, allowing the adjustment tubes to pass through the through holes and extend into the telescopic tubes. Several long screws pass through the insertion holes and are threadedly connected to the adjustment tubes.

5. A novel hanging cabinet lifting shelf as described in claim 1, characterized in that, Each of the elevator's mounting chambers is equipped with an auxiliary tension spring. One end of the auxiliary tension spring is connected to the upper-middle area of ​​the rear end of the mounting chamber, and the other end is connected to the active connecting rod. This connection point is located between the two hinge points of the active connecting rod.

6. A novel hanging cabinet lifting shelf as described in claim 3, characterized in that, A load-bearing button is provided at the front end of the pin.

7. A novel hanging cabinet lifting shelf as described in claim 3, characterized in that, The side wall of the switch housing is provided with a limiting shaft, and the side wall of the pin is provided with a limiting groove, which is slidably engaged with the limiting shaft.

8. A novel hanging cabinet lifting shelf as described in claim 1, characterized in that, The lower shelf is equipped with a handle at its bottom.

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