Cabinet door hovering fixing seat and storage cabinet

By using a separate, fixed base and suspension seat design, combined with metal sheet stamping and casting processes, the problem of high cost of freezer door suspension structure is solved, achieving a low-cost and high-efficiency suspension function.

CN224161600UActive Publication Date: 2026-04-24HANGZHOU HUAFA IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HUAFA IND
Filing Date
2025-05-14
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing metal casting molds for the suspension structure of freezer doors are large, resulting in high production costs and a high likelihood of defective products.

Method used

The cabinet door features a separate but fixed base and a suspension seat design. The base is formed by stamping and bending metal sheets, while the suspension seat is cast. Combined with a worm gear and a torque adjustment seat, the cabinet door can be suspended, reducing processing costs and improving precision.

Benefits of technology

It reduced production costs, decreased the number of defective products, improved installation efficiency and product quality, and ensured the normal operation of the hovering function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cabinet door hovering fixing seat and a storage cabinet, belongs to the technical field of storage cabinets, and aims at overcoming the defect that an existing cabinet door hovering structure is high in cost. The cabinet door hovering fixing seat comprises a seat body and a hovering seat which are fixedly connected in a split mode, the seat body comprises a fixing plate and a mounting plate, the fixing plate is provided with a fixing hole, the hovering seat is mounted on the mounting plate, and the hovering seat is provided with a supporting table and a limiting groove. The seat body can be formed by directly stamping and bending a metal plate or welding the metal plate, the machining cost is low, only a small hovering seat can be manufactured through appropriate processes such as casting forming, powder metallurgy and cutting machining, the cost is better on the premise that the quality is guaranteed, defective products are not prone to occurring, and the seat body and the small hovering seat are fixed after the hovering seat and the small hovering seat are respectively completed.
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Description

Technical Field

[0001] This utility model belongs to the field of storage cabinet technology, and relates to a cabinet door suspension fixing seat and a storage cabinet. Background Technology

[0002] An existing type of refrigerator door has a hovering structure, which includes a lower base and a lifting component that can move up and down relative to the lower base. The lower base has a support platform and a limiting groove, and the lifting component has a limiting part. The lifting component is rotatably configured relative to the lower base so that the limiting part abuts against the upper end of the support platform or is embedded in the limiting groove. When the limiting part is embedded in the limiting groove, the refrigerator door is hovered in a specific position. The lower base includes a lower base body, which is formed by metal casting and has a mounting cavity. The mounting cavity contains a wire torque adjustment mechanism, which includes a screw, a gear, and a torque adjustment seat. Because the lower base body needs to be fixed to the refrigerator body, the two right-angle fixing plates are relatively long, making it difficult for molten metal to flow into the corresponding mold grooves during casting, which can easily result in defective products. Furthermore, the casting mold is relatively large, resulting in high production costs. Summary of the Invention

[0003] This utility model addresses the problems existing in the prior art by proposing a cabinet door suspension fixing seat and storage cabinet, aiming to overcome the high cost of existing cabinet door suspension structures.

[0004] This utility model is implemented as follows:

[0005] A cabinet door suspension fixing seat, characterized in that it includes a seat body and a suspension seat that are separately fixed together, the seat body includes a fixing plate and a mounting plate, the fixing plate has fixing holes, the suspension seat is mounted on the mounting plate, and the suspension seat has a support platform and a limiting groove.

[0006] The mounting plate has mounting holes, and the hovering seat has an upwardly protruding mounting post that passes through the mounting holes.

[0007] The suspension seat has an upward-opening chamber at the mounting post position, the inner wall of the chamber has annular ribs, and the support platform and the limiting groove are located on the annular ribs.

[0008] The chamber has a through hole in the middle, and a torque adjustment seat is provided in the through hole. The suspension seat is equipped with a worm gear that drives the torque adjustment seat to rotate, and a cover plate is provided at the lower end of the suspension seat.

[0009] A gear is provided between the worm and the torque adjusting seat. The gear is sleeved on the torque adjusting seat and is connected to the torque adjusting seat in a transmission manner. The gear meshes with the worm.

[0010] The mounting plate is connected to the top of the fixed plate, and the seat includes a support plate connected to the side of the fixed plate. The support plate has a support notch, and the hovering seat is embedded in the support notch. The lower edge of the support notch abuts against the first end of the hovering seat to support the hovering seat.

[0011] The lower edge of the support notch abuts against the cover plate;

[0012] An observation port is provided on the cover plate corresponding to the torque adjustment seat, and the diameter of the observation port is greater than or equal to the outer diameter of the torque adjustment seat; or, the position of the cover plate corresponding to the torque adjustment seat is closed; or, the cover plate is provided with a lower boss corresponding to the torque adjustment seat.

[0013] A support seat is fixed on the fixing plate. The support seat abuts against the hovering seat near the second end. The support seat partially protrudes upward and abuts against the mounting plate. The support seat, the mounting plate, and the hovering seat are welded together.

[0014] A storage cabinet, characterized in that it includes the aforementioned fixed base, a cabinet body and a cabinet door, the fixed plate is fixed to the cabinet body, a lifting member is fixed to the cabinet door, the lifting member has a limiting part, the lifting member is rotatably arranged relative to the base body so that the limiting part abuts against the upper end of the support platform or is embedded in the limiting groove, and a return drive member is provided between the torque adjustment seat and the lifting member.

[0015] The support platform and / or the limiting part have a guide slope. When the lifting member rotates relative to the suspension seat in the first direction, the guide slope causes the lifting member to move upward relative to the suspension seat, and the limiting part moves from the limiting groove to the upper end of the support platform.

[0016] The regression drive component is a steel wire, and the lower end of the steel wire is fixed on the torque adjustment seat;

[0017] The lifting component includes a seat plate, a hovering component, and a sleeve. The seat plate is fixed to the cabinet door and has a positioning hole. The limiting part is located on the hovering component, and the hovering component has a positioning part that is embedded in the positioning hole. The lower end of the sleeve is inserted into the hovering component and fixed. The upper end of the steel wire is fixed to the upper end of the sleeve. Alternatively, the lifting component includes a seat plate, a hovering component, a connecting sleeve, and a sleeve fixed together. The seat plate is fixed to the cabinet door and has a positioning hole. The limiting part is located on the hovering component. The connecting sleeve is inserted into the seat plate, and the lower end of the connecting sleeve abuts against the lower surface of the seat plate. The upper end of the hovering component is inserted into the connecting sleeve, and the lower end of the hovering component abuts against the connecting sleeve. A gasket is provided between the hovering component and the connecting sleeve. The sleeve is inserted and fixed to the upper end of the connected sleeve.

[0018] The present invention has the following advantages: the seat can be formed by directly stamping and bending metal plates or by welding metal plates, which reduces the processing cost. Only a small suspension seat needs to be made by casting, powder metallurgy, cutting and other suitable processes. Under the premise of quality assurance, the cost is more favorable and it is not easy to produce defective products. After the two are completed, they are fixed together. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a first partial structure of the storage cabinet in Embodiment 1;

[0020] Figure 2 This is a schematic diagram of the second partial structure of the storage cabinet in Embodiment 1;

[0021] Figure 3 This is a schematic diagram of the third partial structure of the storage cabinet in Embodiment 1;

[0022] Figure 4 This is an exploded view of a partial structure of the storage cabinet in Example 1;

[0023] Figure 5 This is a schematic diagram of the structure of a single structure in an embodiment;

[0024] Figure 6 This is a schematic diagram of the hovering seat in Embodiment 1;

[0025] Figure 7 This is a schematic diagram of the first angle structure of the hovering component in Embodiment 1;

[0026] Figure 8 This is a schematic diagram of the second angle structure of the hovering component in Embodiment 1;

[0027] Figure 9 This is a schematic diagram of the lifting component in Embodiment 2;

[0028] Figure 10 This is an exploded structural diagram of the lifting component in Example 2;

[0029] Figure 11 This is a cross-sectional structural diagram of the lifting component in Embodiment 2.

[0030] Figure labeling: 100, base; 110, fixing plate; 111, fixing hole; 120, mounting plate; 121, mounting hole; 130, support plate; 131, support notch; 140, support seat; 200, hovering seat; 210, support platform; 211, guide slope; 220, limiting groove; 230, mounting column; 240, annular rib; 250, through hole; 300, torque adjustment seat; 310, worm gear; 320, gear; 330, cover plate; 400, return drive component; 500, base plate; 510, hovering component; 511, limiting part; 512, positioning part; 520, sleeve; 530, positioning hole; 540, connecting sleeve; 550, gasket. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of this utility model easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example

[0032] This implementation provides a storage cabinet, such as Figure 1-8 As shown, the cabinet includes a box body and a cabinet door (not shown in the figure). A mounting base is fixed to the box body, comprising a separate, fixed base 100 and a hovering base 200. The base 100 includes a fixing plate 110 and a mounting plate 120. The fixing plate 110 has fixing holes 111. The hovering base 200 is mounted on the mounting plate 120 and has a support platform 210 and a limiting groove 220. The design of the fixing plate 110 and fixing holes 111 on the base 100 allows for quick and precise installation of the hovering base onto the box body using screws or rivets, laying the foundation for subsequent cabinet door installation and the implementation of the hovering function. The separate, fixed connection allows the base 100 and the hovering base 200 to be manufactured using suitable processes. The stamping and bending forming of the base 100 is suitable for mass production at low cost; the casting forming of the hovering seat 200 ensures the precision and strength of key structures. The combination of these two processes improves overall production efficiency and product quality. The base 100 uses a metal sheet stamping and bending process, eliminating the need for large casting molds, significantly reducing mold costs and minimizing defects caused by poor molten metal flow during casting, thus reducing material waste and rework costs. Furthermore, casting only the smaller hovering seat 200 further saves on mold costs and production energy consumption.

[0033] like Figure 4 , 5As shown, the mounting plate 120 has mounting holes 121, and the hovering seat 200 has upwardly protruding mounting posts 230, which pass through the mounting holes 121. During installation, the mounting posts 230 are precisely inserted into the mounting holes 121, and the two fit tightly together to form a stable positioning structure. This provides a precise positioning reference for the installation of the hovering seat 200, ensuring that the installation position of the hovering seat 200 is accurate and that the hovering function operates normally. During the production and assembly process, workers only need to align the mounting posts 230 with the mounting holes 121 and insert them to quickly complete the initial installation of the hovering seat 200 and the seat body 100, greatly improving installation efficiency.

[0034] like Figure 6 As shown, the suspension seat 200 has an upward-opening chamber at the mounting post 230. The inner wall of the chamber has annular ribs 240, and the support platform 210 and the limiting groove 220 are located on the annular ribs 240. A through hole 250 is located in the center of the chamber, and a torque adjustment seat 300 is installed within the through hole 250. A worm gear 310 is mounted on the suspension seat 200 to drive the torque adjustment seat 300 to rotate. A cover plate 330 is provided at the lower end of the suspension seat 200. The through hole 250 in the center of the chamber is used to install the torque adjustment seat 300. The worm gear 310 is connected to the torque adjustment seat 300 in a transmission connection. When the worm gear 310 is rotated, it drives the torque adjustment seat 300 to rotate, thereby adjusting the cabinet door return force. A cover plate 330 is provided at the lower end of the hovering seat 200. The cover plate 330 has an observation port with a diameter greater than or equal to the outer diameter of the torque adjusting seat 300, facilitating observation of whether the torque adjusting seat 300 is installed correctly. In other optional embodiments, the cover plate is closed at the position corresponding to the torque adjusting seat; or, the cover plate has a lower boss corresponding to the torque adjusting seat, forming a clearance groove to prevent the torque adjusting seat from abutting against the cover plate.

[0035] like Figure 2 , 4 As shown, a gear 320 is provided between the worm 310 and the torque adjusting seat 300. The gear 320 is sleeved on the torque adjusting seat 300 and is connected to it for transmission. The gear 320 meshes with the worm 310. When the worm 310 is rotated, the helical teeth of the worm 310 drive the gear 320 to rotate, and the gear 320 then transmits power to the torque adjusting seat 300, driving it to rotate, thereby adjusting the torque of the return drive component 400 connected to the torque adjusting seat 300. In other optional embodiments, the worm 310 can also directly mesh with the torque adjusting seat 300.

[0036] like Figure 1-5As shown, the mounting plate 120 is connected to the top of the fixing plate 110. The seat 100 includes a support plate 130 connected to the side of the fixing plate 110. The support plate 130 has a support notch 131. The hovering seat 200 is embedded in the support notch 131, and the lower edge of the support notch 131 abuts against the first end of the hovering seat 200 to support the hovering seat 200. The mounting plate 120 and the support plate 130 form a clamping and limiting mechanism for the hovering seat 200. The hovering seat 200 can be interference-fitted into the support notch 131, or it can be further fixed to the seat 100 by welding. The fixing plate, mounting plate, and support plate can be spliced ​​or bent into a whole. In other optional embodiments, the separate parts can also be fixedly connected by welding, snap-fitting, or screws.

[0037] like Figure 2 As shown, the lower edge of the support notch 131 abuts against the cover plate 330. This eliminates the need for additional structural restraints to fix the supported position of the cover plate 330, reducing the complexity of the hovering seat 200 and lowering manufacturing costs.

[0038] like Figure 1-4 As shown, a support base 140 is fixed on the fixing plate 110, and the support base 140 abuts against the hovering seat 200 near the second end. The support base 140 is welded to the fixing plate 110, and a portion of the support base 140 protrudes upward and abuts against the mounting plate 120. The support base 140 can be further welded to the mounting plate 120 and the hovering seat 200.

[0039] Furthermore, the fixing plate 110 is fixed to the cabinet body by screws passing through the fixing hole 111. A lifting component is fixed on the cabinet door. The lifting component has a limiting part 511. The lifting component is rotatably arranged relative to the seat 100 so that the limiting part 511 abuts against the upper end of the support platform 210 or is embedded in the limiting groove 220. A return drive component 400 is provided between the torque adjustment seat 300 and the lifting component.

[0040] When the cabinet door is closed, the limiting part 511 abuts against the support platform 210, and the lifting component is in a high position. When the cabinet door is opened to the first angle, for example, to 90 degrees, the limiting part 511 and the support platform 210 are misaligned, and the lifting component descends under the action of gravity, causing the limiting part 511 to fall into the limiting groove 220. The force required for the lifting component to rise is greater than the torque of the return drive component 400, so the cabinet door can be suspended at the first angle.

[0041] like Figure 6 , 7As shown, the support platform 210 and the limiting part 511 have guide slopes 211. When the lifting member rotates relative to the suspension seat 200 in the first direction, the guide slopes 211 cause the lifting member to move upward relative to the suspension seat 200, and the limiting part 511 moves from the limiting groove 220 to the upper end of the support platform 210. The guide slopes 211 ensure that the limiting part 511 can move smoothly from the limiting groove 220 to the upper end of the support platform 210. In this way, whether the cabinet door is opened or closed, it can be achieved by pushing the cabinet door with one hand, which is more convenient to operate and less likely to cause the door to be difficult to open and close due to bending of parts, which is conducive to the cabinet door maintaining smooth opening and closing for a long time. In other optional embodiments, the guide slopes 211 may only be provided on the support platform 210 or the limiting part 511.

[0042] like Figure 3 , 4 As shown, the return drive component 400 is a steel wire, the lower end of which is fixed to the torque adjusting seat 300. The lifting component includes a seat plate 500, a suspension component 510, and a sleeve 520. The seat plate 500 is fixed to the cabinet door and has a square positioning hole 530. The limiting part 511 is located on the suspension component 510, and the suspension component 510 has a square positioning part 512 that is embedded in the positioning hole 530. The suspension component 510 and the seat plate 500 can be further welded together for fixation. The lower end of the sleeve 520 is inserted into the suspension component 510 and fixed thereto, and the upper end of the steel wire is fixed to the upper end of the sleeve 520. The seat plate 500 and the suspension component 510 are also separately fixed together, which can reduce costs and defect rates. In other optional embodiments, the return drive component 400 can also be a torsion spring. Example

[0043] In Embodiment 1, the hovering component 510 and the sleeve 520 are directly fixedly connected. In this embodiment, the hovering component 510 and the sleeve 520 are fixedly connected via a connecting sleeve 540. Specifically, as... Figure 9-11 As shown, the lifting component includes a seat plate 500, a hovering component 510, a connecting sleeve 540, and a sleeve 520 fixed together. The seat plate 500 is fixed to the cabinet door and has a circular positioning hole 530. The limiting part 511 is located on the hovering component 510. The connecting sleeve is inserted into the seat plate 500, and the lower end of the connecting sleeve abuts against the lower surface of the seat plate 500. The upper end of the hovering component 510 is inserted into the connecting sleeve 540, and the lower end of the hovering component 510 abuts against the connecting sleeve 540. A gasket 550 is provided between the hovering component 510 and the connecting sleeve 540. The sleeve 520 is inserted and fixed to the upper end of the connected sleeve 540.

[0044] The other structures in this embodiment are the same as in Embodiment 1.

Claims

1. A cabinet door suspension and fixing base, characterized in that, It includes a separate fixed base (100) and a hovering seat (200). The base (100) includes a fixing plate (110) and a mounting plate (120). The fixing plate (110) has a fixing hole (111). The hovering seat (200) is mounted on the mounting plate (120). The hovering seat (200) has a support platform (210) and a limiting groove (220).

2. The cabinet door suspension fixing base according to claim 1, characterized in that, The mounting plate (120) has mounting holes (121), and the hovering seat (200) has an upwardly protruding mounting post (230) that passes through the mounting holes (121).

3. A cabinet door suspension fixing base according to claim 2, characterized in that, The hovering seat (200) has an upward-opening chamber at the mounting post (230) position, and the inner wall of the chamber has an annular rib (240). The support platform (210) and the limiting groove (220) are located on the annular rib (240).

4. A cabinet door suspension fixing base according to claim 3, characterized in that, The cavity has a through hole (250) in the middle, and a torque adjustment seat (300) is provided in the through hole (250). A worm gear (310) is mounted on the suspension seat (200) to drive the torque adjustment seat (300) to rotate. A cover plate (330) is provided at the lower end of the suspension seat (200).

5. A cabinet door suspension fixing base according to claim 4, characterized in that, A gear (320) is provided between the worm (310) and the torque adjusting seat (300). The gear (320) is sleeved on the torque adjusting seat (300) and is connected to the torque adjusting seat (300) in a transmission manner. The gear (320) meshes with the worm (310).

6. A cabinet door suspension fixing base according to claim 4, characterized in that, The mounting plate (120) is connected to the top of the fixing plate (110), and the seat (100) includes a support plate (130) connected to the side of the fixing plate (110). The support plate (130) has a support notch (131), and the hovering seat (200) is embedded in the support notch (131). The lower edge of the support notch (131) abuts against the first end of the hovering seat (200) to support the hovering seat (200).

7. A cabinet door suspension fixing base according to claim 6, characterized in that, The lower edge of the support notch (131) abuts against the cover plate (330). An observation port is provided on the cover plate (330) corresponding to the torque adjusting seat (300), and the diameter of the observation port is greater than or equal to the outer diameter of the torque adjusting seat (300); or, the position of the cover plate corresponding to the torque adjusting seat is closed; or, the cover plate is provided with a lower boss corresponding to the torque adjusting seat.

8. A cabinet door suspension fixing base according to claim 1, characterized in that, A support base (140) is fixed on the fixing plate (110). The support base (140) abuts against the hovering seat (200) near the second end. The support base (140) partially protrudes upward and abuts against the mounting plate (120). The support base (140) is welded to the mounting plate (120) and the hovering seat (200).

9. A storage cabinet, characterized in that, The device includes the fixed base as described in claim 1, and also includes a housing and a cabinet door. The fixed plate (110) is fixed on the housing, and a lifting member is fixed on the cabinet door. The lifting member has a limiting part (511). The lifting member is rotatably arranged relative to the base (100) so that the limiting part (511) abuts against the upper end of the support platform (210) or is embedded in the limiting groove (220). The base is provided with a torque adjustment seat, and a return drive member (400) is provided between the torque adjustment seat (300) and the lifting member.

10. A storage cabinet according to claim 9, characterized in that, The support platform (210) and / or the limiting part (511) have guide slopes (211). When the lifting member rotates relative to the suspension seat (200) in the first direction, the guide slopes (211) cause the lifting member to move upward relative to the suspension seat (200), and the limiting part (511) moves from the limiting groove (220) to the upper end of the support platform (210). The return drive component (400) is a steel wire, and the lower end of the steel wire is fixed on the torque adjustment seat (300); The lifting component includes a seat plate (500), a hovering component (510), and a sleeve (520). The seat plate (500) is fixed to the cabinet door and has a positioning hole (530). The limiting part (511) is located on the hovering component (510), and the hovering component (510) has a positioning part (512) that is embedded in the positioning hole (530). The lower end of the sleeve (520) is inserted into the hovering component (510) and fixed. The upper end of the steel wire is fixed to the upper end of the sleeve (520). Alternatively, the lifting component includes a seat plate (500), a hovering component (510), a connecting sleeve (540), and a sleeve (520) fixed together. The seat plate (500) is fixed on the cabinet door. The seat plate (500) has a positioning hole (530). The limiting part (511) is located on the suspension member (510). The connecting sleeve is inserted on the seat plate (500). The lower end of the connecting sleeve abuts against the lower surface of the seat plate (500). The upper end of the suspension member (510) is inserted on the connecting sleeve (540). The lower end of the suspension member (510) abuts against the connecting sleeve (540). There is a gasket (550) between the suspension member (510) and the connecting sleeve (540). The sleeve (520) is inserted and fixed on the upper end of the connected sleeve (540).