Plugging structure for preformed hole of cabinet body and cabinet body

By combining the outer and inner rails, and utilizing the design of plug-in, connecting blocks, and ball bearings, the aesthetics, stability, and ease of operation of the reserved holes in traditional height-adjustable shelf cabinets are solved, achieving automatic concealment of the reserved holes and stability of the shelves.

CN223503903UActive Publication Date: 2025-11-04CHONGQING YUXIAO SMART HOME CO LTD
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Patent Information

Application Number
CN202422913840.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-11-04
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Traditional height-adjustable shelf cabinets have pre-drilled holes that become visible after use, affecting aesthetics, causing blockages and wear, resulting in structural instability, cumbersome operation, and low efficiency.

Method used

It adopts a combination structure of outer and inner rails. The inner rail can slide and adjust its length. It is fixed to the reserved hole by plug-in and L-shaped connecting block. The support column provides support force, the ball bearing reduces friction, and the limit block ensures stability.

Benefits of technology

Automatic concealment of pre-drilled holes improves the aesthetics and stability of the structure, simplifies the operation process, and ensures the stability of the shelves at different heights.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a plugging structure for a preformed hole of a cabinet body and the cabinet body. The plugging structure comprises an outer rail, an inner rail and two connecting assemblies, the outer rail is provided with a rail groove; the inner rail is arranged in the rail groove in a sliding mode and can partially protrude out of the outer rail. The two connecting assemblies are arranged on the outer rail and the inner rail in a one-to-one correspondence mode, each connecting assembly comprises an inserting piece and an L-shaped connecting block, the inserting pieces penetrate through the vertical ends of the connecting blocks and then are inserted into the outer rail or the inner rail, and supporting columns are arranged at the transverse ends of the connecting blocks so as to provide supporting force in the first direction; wherein the insertion direction of the plug-in is defined as a second direction, and the first direction is perpendicular to the second direction. According to the utility model, the problems that the unused preformed hole of the traditional cabinet body is not beautiful and the durability and the stability are poor are solved.
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Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a sealing structure for pre-reserved holes in a cabinet and a cabinet body. Background Technology

[0002] With the increasing diversification of home environments and the growing demand for personalization, traditional fixed shelving units can no longer meet users' requirements for space utilization. To accommodate the storage needs of objects of varying heights, modern furniture design has introduced height-adjustable shelving units (such as...). Figure 1 As shown in the diagram, this design not only enhances the flexibility of storage space but also improves the user experience. Specifically, evenly distributed pre-drilled holes 101 are designed on the inner walls of both sides of the cabinet. The spacing between these holes is fixed, providing multiple installation height options for the shelves. The corresponding locking devices 102 can be used to fix the shelves at the corresponding height, thereby achieving flexible adjustment of the shelf height.

[0003] However, the above-mentioned shelf cabinets have the following shortcomings:

[0004] 1. Aesthetics and durability of reserved holes: After adjusting the height of the shelves, unused reserved holes will be exposed, which not only affects the overall aesthetics of the cabinet, but also makes it possible for foreign objects to block them, rendering the reserved holes unusable; at the same time, wear and tear may occur, affecting their use.

[0005] 2. Structural stability issues: If the shelves are not securely fixed when adjusting their height, they may shift or fall off due to excessive load.

[0006] 3. Ease of operation: Users need to manually adjust the position of each shelf, which is cumbersome, inefficient and prone to errors. Utility Model Content

[0007] In view of the shortcomings of the existing technology, this utility model provides a sealing structure for the reserved hole in the cabinet and a cabinet body, aiming to solve the relevant technical problems in the background art mentioned above.

[0008] This utility model provides a sealing structure for pre-drilled holes in a cabinet, comprising:

[0009] The outer rail is equipped with a track groove;

[0010] The inner rail is slidably disposed in the track groove and may partially protrude from the outer rail;

[0011] Two connecting components are provided on the outer rail and the inner rail respectively. Each connecting component includes a plug and an L-shaped connecting block. The plug passes through the vertical end of the connecting block and is inserted into the outer rail or the inner rail. The horizontal end of the connecting block is provided with a support column to provide support force along the first direction.

[0012] The insertion direction of the plug-in is defined as the second direction, and the first direction and the second direction are perpendicular to each other.

[0013] Furthermore, the sealing structure also includes a plurality of ball bearings spaced apart along the sliding direction of the inner rail, the plurality of ball bearings being rotatably disposed in the track groove for rotating and fitting with the inner rail.

[0014] Furthermore, the track groove is provided with a ball bearing frame, which has multiple mounting holes corresponding to the multiple balls, and each ball portion protrudes from each mounting hole.

[0015] Furthermore, the inner rail is provided with a groove along its sliding direction, and the ball is located in the groove and can rotate and fit against the inner wall of the groove.

[0016] Furthermore, the sliding direction of the inner rail is set along the first direction.

[0017] Furthermore, the ends of the outer rail and the inner rail are respectively provided with a first limiting block and a second limiting block. The first limiting block and the second limiting block are staggered and can abut or disengage. When the first limiting block and the second limiting block abut, they are used to restrict the inner rail from moving away from the outer rail.

[0018] Furthermore, the plug-in includes a screw.

[0019] This utility model provides a cabinet, including the sealing structure described above.

[0020] Compared to existing technologies, this utility model has the following advantages: the inner rail can slide within the groove of the outer rail, allowing the installation height of adjacent shelves to be determined based on the length of the inner rail protruding from the outer rail. Inserting plugs into corresponding pre-drilled holes fixes the inner and outer rails at the appropriate height. On one hand, the inner and outer rails cover unused pre-drilled holes, providing protection and aesthetics; on the other hand, they also fix the L-shaped connecting blocks for easy shelf installation. Furthermore, the connecting blocks are equipped with support columns that extend into pre-drilled holes within the shelves. These support columns not only provide support to the shelves when working with the connecting blocks, but also, combined with the weight of the shelves, confine the support columns within the pre-drilled holes, providing effective positioning. Because the plugs and connecting blocks are subjected to forces in two different directions, the overall structural stability is improved, preventing shelves from falling off. Additionally, with the combined action of the inner and outer rails and the connecting components, the installation height of the two shelves can be determined by defining the overall length of the inner and outer rails, making the operation simple and quick. Attached Figure Description

[0021] Figure 1This is a structural diagram of a mid-layer cabinet in the prior art;

[0022] Figure 2 This is a schematic diagram of the sealing structure in one embodiment of the present invention;

[0023] Figure 3 This is an exploded schematic diagram of the sealing structure in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the outer rail structure in one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the inner rail structure in one embodiment of the present invention.

[0026] Explanation of icon numbers:

[0027] 100. Shelf cabinet; 101. Pre-drilled holes; 102. Locking components;

[0028] 1. Outer rail; 2. Inner rail; 201. Groove; 3. Insert; 4. Connecting block; 5. Support column; 6. Ball bearing; 7. Ball bearing cage; 8. First limit block; 9. Second limit block.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0031] In the embodiments of this utility model, such as Figure 2 , Figure 3 As shown, the sealing structure for the pre-drilled holes in the cabinet includes: an outer rail 1, an inner rail 2, and two connecting components; the outer rail 1 is provided with a track groove; the inner rail 2 is slidably disposed in the track groove and can partially protrude from the outer rail 1; the two connecting components are correspondingly disposed on the outer rail 1 and the inner rail 2, each connecting component including a plug 3 and an L-shaped connecting block 4, the plug 3 passing through the vertical end of the connecting block 4 and then inserted into the outer rail 1 or the inner rail 2, the horizontal end of the connecting block 4 is provided with a support column 5 to provide support force along a first direction; wherein, the insertion direction of the plug 3 is defined as the second direction, and the first direction and the second direction are perpendicular to each other.

[0032] Specifically, in this embodiment of the utility model, the outer rail 1 is provided with a track groove for the inner rail 2 to slide in the track groove, so as to adjust the overall length of the entire structure by sliding the inner rail 2. On the one hand, it can be used as a distance measuring tool for adjacent two layers of plates, and on the other hand, it can cover up the extra and unused reserved holes, which plays a role in aesthetics and protection, and avoids the situation that the reserved holes will become blocked or worn and cannot be used after long-term use.

[0033] In this embodiment of the utility model, a connecting component is provided at both ends of the inner rail 2 and the outer rail 1. The connecting component can not only fix the inner rail 2 and the outer rail 1 to the corresponding reserved holes, but also play the role of supporting the shelf. There is no need to use other locking parts, thus preventing the use of multiple reserved holes.

[0034] Specifically, the connecting assembly includes a plug 3 and an L-shaped connecting block 4. The plug 3 passes through the vertical end of the L-shaped connecting block 4 and the inner rail 2 (or outer rail 1) and can be inserted into a pre-drilled hole. On the one hand, it can fix the inner rail 2 (or outer rail 1) in the pre-drilled hole at the corresponding height, and on the other hand, it can install the connecting block 4. In addition, the horizontal end of the connecting block 4 is integrally formed with a support column 5. The support column 5 can extend into the pre-drilled hole at the bottom of the shelf, thereby providing a supporting force to the shelf. At the same time, since the support column 5 is located in the pre-drilled hole of the shelf, the support column 5 can use the pre-drilled hole to limit the shelf and prevent it from detaching. Of course, the horizontal end of the connecting block 4 and the support column 5 cooperate to provide support for the shelf, improving the stability of the overall structure.

[0035] This embodiment has the following advantages:

[0036] 1. Adjustable overall length: The length of the entire structure can be adjusted by sliding the inner rail 2 in the track groove to adapt to different shelf heights; this structure can not only be used as a distance measuring tool between adjacent shelves, but also automatically cover unused reserved holes when adjusting shelf height, maintaining the aesthetics of the cabinet.

[0037] 2. Covering unused reserved holes: When the shelf height is adjusted, the unused reserved holes will be covered by the combination structure of inner rail 2 and outer rail 1 to avoid blockage or wear during long-term use, which would affect subsequent use.

[0038] 3. Fixing and support: The design of the plug-in 3 and L-shaped connecting block 4 of the connecting component not only fixes the inner rail 2 and outer rail 1 to the corresponding reserved holes, but also provides stable support to the shelf through the support column 5; the support column 5 extends into the reserved hole at the bottom of the shelf to limit the shelf and prevent it from falling off during use, thus improving the stability of the overall structure.

[0039] 4. Easy to operate: Users can quickly adjust the shelf height through simple sliding and plugging operations without the need for additional locking parts, which simplifies the operation process and improves the convenience of use.

[0040] 5. Enhanced structural stability: The double fixing of the connecting components (fixed by plug-in 3 and supported by support column 5) ensures the stability of the shelves at different heights, avoiding displacement or falling off due to excessive load.

[0041] like Figure 4 As shown, in one embodiment, the sealing structure further includes a plurality of ball bearings 6 spaced apart along the sliding direction of the inner rail 2. These ball bearings 6 are rotatably disposed in the track groove for rotating contact with the inner rail 2. Specifically, to reduce the frictional resistance of the inner rail 2 when sliding within the track groove, and to make the sliding of the inner rail 2 smoother, this embodiment installs a plurality of ball bearings 6 within the track groove, allowing the ball bearings 6 to rotate and contact with the side of the inner rail 2, thus more easily pulling the inner rail 2 relative to the outer rail 1. Simultaneously, reducing frictional resistance can decrease the wear of the inner rail 2 and the track groove, extending the service life of the entire sealing structure. Under long-term use, the ball bearings 6 can also effectively distribute pressure, preventing localized wear and maintaining the stability and reliability of the structure.

[0042] like Figure 4 As shown, further, in one embodiment, the track groove is provided with a ball bearing holder 7, which has multiple mounting holes corresponding one-to-one with the multiple balls 6, and each ball 6 partially protrudes from each mounting hole. Specifically, in order to install the balls 6 in the track groove, this embodiment fixes the ball bearing holder 7 to the side wall of the track groove. The ball bearing holder 7 forms multiple mounting holes for installing multiple balls 6. In addition, in order to reduce the width of the track groove and optimize the overall size of the structure, the balls 6 only need to partially protrude from each mounting hole, that is, a part of the balls 6 is hidden in the mounting holes, which serves the purpose of installation and connection, and another part of the balls 6 is used to rotate and fit against the side of the inner rail 2. Preferably, the inner rail 2 is provided with a groove 201 along its sliding direction, and the balls 6 are located in the groove 201 and can rotate and fit against the inner wall of the groove 201. The groove 201 not only further reduces the overall size of the structure, but also cooperates with the balls 6 to play a guiding role and prevent the inner rail 2 from detaching from the outer rail 1.

[0043] like Figures 3-5As shown, the sliding direction of the inner rail 2 is set along a first direction. Preferably, the ends of the outer rail 1 and the inner rail 2 are respectively provided with a first limiting block 8 and a second limiting block 9. The first limiting block 8 and the second limiting block 9 are staggered and can abut or disengage. When the first limiting block 8 and the second limiting block 9 abut, they are used to restrict the movement of the inner rail 2 away from the outer rail 1. In this embodiment, the staggered first limiting block 8 and the second limiting block 9 can abut or disengage during the sliding process of the inner rail 2 to limit the inner rail 2 and prevent it from sliding off the outer rail 1.

[0044] The plug-in 3 includes screws for quick and easy locking of the connecting block 4 and the inner and outer rails 1.

[0045] This embodiment also provides a cabinet including the sealing structure described above. The specific structure of the sealing structure is as described in the above embodiment. Since this cabinet adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealing structure for pre-drilled holes in a cabinet, characterized in that, include: The outer rail is equipped with a track groove; The inner rail is slidably disposed in the track groove and may partially protrude from the outer rail; Two connecting components are provided on the outer rail and the inner rail respectively. Each connecting component includes a plug and an L-shaped connecting block. The plug passes through the vertical end of the connecting block and is inserted into the outer rail or the inner rail. The horizontal end of the connecting block is provided with a support column to provide support force along the first direction. The insertion direction of the plug-in is defined as the second direction, and the first direction and the second direction are perpendicular to each other.

2. The sealing structure for a pre-reserved hole in a cabinet as described in claim 1, characterized in that, The sealing structure also includes a plurality of ball bearings spaced apart along the sliding direction of the inner rail. The plurality of ball bearings are rotatably disposed in the track groove for rotating and fitting with the inner rail.

3. The sealing structure for a pre-reserved hole in a cabinet as described in claim 2, characterized in that, The track groove is provided with a ball bearing frame, which has multiple mounting holes that correspond one-to-one with the multiple balls, and each ball portion protrudes from each mounting hole.

4. The sealing structure for a pre-reserved hole in a cabinet as described in claim 3, characterized in that, The inner rail is provided with a groove along its sliding direction, and the ball is located in the groove and can rotate and fit against the inner wall of the groove.

5. A sealing structure for a pre-reserved hole in a cabinet as described in any one of claims 1-4, characterized in that, The sliding direction of the inner rail is set along the first direction.

6. The sealing structure for a pre-reserved hole in a cabinet as described in claim 5, characterized in that, The ends of the outer rail and the inner rail are respectively provided with a first limiting block and a second limiting block. The first limiting block and the second limiting block are staggered and can abut or dismount. When the first limiting block and the second limiting block abut, they are used to restrict the inner rail from moving away from the outer rail.

7. The sealing structure for a pre-reserved hole in a cabinet as described in claim 1, characterized in that, The plug-in includes screws.

8. A cabinet, characterized in that, Including the sealing structure as described in any one of claims 1-7.