Adjustable motor home refrigerator shelf mechanism and mounting structure thereof

By designing an adjustable RV refrigerator shelf mechanism, and utilizing the threaded connection of movable and fixed parts, combined with the front and rear seat grooves of the refrigerator liner, flexible switching and stable connection of the shelves can be achieved. This solves the problems of low efficiency and cumbersome disassembly and assembly of existing refrigerator shelves, and improves efficiency and ease of operation.

CN121898087APending Publication Date: 2026-04-21GUANGZHOU WANBAO GRP REFRIGERATOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU WANBAO GRP REFRIGERATOR
Filing Date
2025-12-18
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing adjustable placement method of refrigerator shelves has limitations. The double card slot structure of the rear seat is wasteful and inefficient. Disassembly and assembly are cumbersome and parts are easily lost.

Method used

Design an adjustable RV refrigerator shelf mechanism. The shelf can be switched between horizontal and oblique placement through the threaded connection of movable and fixed parts. The fixed part is fixed to the outside of the refrigerator liner, and the movable part can be inserted into the docking groove of the fixed part. Combined with the front and rear seat grooves of the refrigerator liner, the shelf can be flexibly adjusted.

Benefits of technology

It enables flexible switching of shelves, makes full use of the rear seat slot, improves structural efficiency, simplifies the adjustment process, avoids loss of parts, and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

A shelf is provided with two front rod parts and two rear rod parts, particularly, the adjustable refrigerator shelf mechanism is further provided with a mounting assembly, the mounting assembly comprises a movable part and a fixed part, the fixed part is fixedly arranged near the tail end of the front rod parts and is provided with a butt joint groove, the movable part is movably connected with the front rod parts and is provided with a butt joint head, and the butt joint head is provided with a butt joint groove. The movable part can move to be inserted into the butt joint groove so that the front rod part can be connected with the butt joint. The invention further provides an installation structure of the shelf mechanism, the installation structure comprises a refrigerator inner container and at least one shelf mechanism, a plurality of horizontal positioning groove sets are formed in the inner wall of the refrigerator inner container, each horizontal positioning groove set comprises two front seat grooves and two rear seat grooves, and the two front seat grooves and the two rear seat grooves are located at the same height. The two front seat grooves and the two rear seat grooves closest to the lower portions of the front seat grooves form an inclined positioning groove set, and therefore the shelf is arranged in an inclined mode. The structure using efficiency can be improved, the shelf adjusting mode can be simplified, and the advantages of being convenient to operate and easy to adjust are achieved.
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Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, and more specifically to an adjustable RV refrigerator shelf mechanism and its installation structure. Background Technology

[0002] The applicant's earlier Chinese utility model patent application, authorized by publication number CN221549077U, disclosed a "clamp-on refrigerator shelf." The refrigerator liner has a clamping mechanism for supporting the shelf, comprising two front seats and two rear seats. The front seats are single-slot structures with one shelf positioning slot, and the rear seats are double-slot structures with two shelf positioning slots distributed vertically. This structure allows the refrigerator shelf to be horizontally arranged within the refrigerator liner by aligning the shelf positioning slots on the front seats and the upper shelf positioning slot on the rear seats at the same height, and to be angled within the refrigerator liner by aligning the shelf positioning slots on the front seats and the lower shelf positioning slot on the rear seats in a front-high, rear-low configuration. Users can flexibly choose between horizontal or angled placement of the shelf according to different needs, thus facilitating the placement of various items. However, in practical applications, this adjustable placement method of existing refrigerator shelves has certain limitations. The double-slot rear seat... While the structure allows for two shelf placement methods, its efficiency is not ideal. Specifically, the upper shelf positioning slot on the rear seat only functions when the shelf is laid flat, while the lower slot is only used when the shelf is tilted. This design means that the dual-slot structure on the rear seat uses only one positioning slot most of the time, leaving the other idle, resulting in structural waste. Furthermore, the existing refrigerator shelves use baffles installed on the front and rear seats to limit shelf movement and prevent wobbling. When the user needs to adjust the shelf to tilt, the baffles must be removed to adjust the shelf for tilting. Additionally, the removed baffles must be reinstalled to restore their limiting function. This disassembly and assembly process is cumbersome, and the removed baffles and other parts are easily lost. Therefore, in order to improve the efficiency of the structure, optimize the structural design, and simplify the shelf adjustment method, it is necessary to improve the existing refrigerator shelf installation mechanism. Summary of the Invention

[0003] The purpose of this invention is to propose an adjustable RV refrigerator shelf mechanism, which has a simple structure and is easy to assemble; it also proposes an installation structure for the adjustable RV refrigerator shelf mechanism, which can flexibly switch between horizontal and oblique placement of the shelf, while avoiding the technical problem of waste in the rear seat positioning groove structure mentioned in the background art, improving the efficiency of the structure, and further simplifying the adjustment method of the shelf, with the characteristics of convenient operation and easy adjustment.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] An adjustable RV refrigerator shelf mechanism includes a shelf, which has a rectangular frame or rectangular plate structure and has two symmetrically arranged front rods and two symmetrically arranged rear rods on its front and rear sides, respectively. The mechanism is characterized by further including two symmetrically arranged mounting components, each mounting component comprising a movable member and a fixed member. The fixed member is fixedly disposed near the end of the front rod and has a mating groove facing the end of the front rod. The movable member is movably connected to the front rod and can move along the front rod. The movable member has a connecting joint facing the mating groove of the fixed member. The movable member can be moved until its connecting joint extends out of the front rod and inserts into the mating groove of the fixed member, thereby positioning and connecting the front rod of the shelf with the connecting joint.

[0006] Furthermore, the mating groove of the fixing member has a cylindrical groove structure, and the inner wall of the mating groove has an inner wall thread. The connecting joint of the movable member has a cylindrical structure, and the outer wall of the connecting joint has an outer wall thread corresponding to the inner wall thread, so that the connecting joint is threadedly connected to the mating groove.

[0007] Furthermore, the middle part of the connector of the movable component has a movable through hole and is movably sleeved on the front rod part.

[0008] Furthermore, the end of the movable part's connector away from the fixed part also has a toggle head. The toggle head is a cylindrical structure arranged coaxially with the connector, and its outer wall has protruding strip-shaped portions, which include multiple and are evenly distributed.

[0009] Furthermore, the actuating head of the movable component has a block-shaped portion at the end away from the connector, and the actuating head is connected to the middle of the block-shaped portion.

[0010] An installation structure for a refrigerator shelf mechanism in a motorhome includes a refrigerator liner and at least one shelf mechanism. The inner wall of the refrigerator liner has multiple horizontal positioning grooves arranged sequentially from top to bottom. Each horizontal positioning groove group includes two front mounting grooves and two rear mounting grooves at the same height. The two front mounting grooves are symmetrically located at the front ends of both sides of the inner wall of the refrigerator liner, and the two rear mounting grooves are symmetrically located at the rear ends of both sides of the inner wall of the refrigerator liner. The shelf mechanism is the aforementioned adjustable motorhome refrigerator shelf mechanism. The two front rods and two rear rods of the shelf are respectively made of water... The two front slots and two rear slots of the horizontal positioning slot group are arranged horizontally inside the refrigerator liner. The feature is that the front slot has a through hole on the side of the refrigerator liner, and the fixing member of the mounting component is placed on the outside of the refrigerator liner, and its docking groove passes through the through hole of the front slot into the refrigerator liner. The two front slots of the previous horizontal positioning slot group and the two rear slots of the horizontal positioning slot group closest to it below form an oblique positioning slot group, so that the shelf of the shelf mechanism is arranged obliquely inside the refrigerator liner with the front higher than the rear.

[0011] Furthermore, the rear seat groove is a long strip-shaped groove structure. When the shelf is arranged horizontally, the two rear rods of the shelf are respectively located in the rear part of the two rear seat grooves. When the shelf is arranged obliquely with the front higher than the back, the two rear rods of the shelf are respectively located in the front part of the two rear seat grooves.

[0012] Furthermore, the fastener located on the outside of the refrigerator liner also has a stop.

[0013] This invention has the following outstanding substantive features and significant progress:

[0014] The adjustable RV refrigerator shelf mechanism of the present invention features a simple structure and easy assembly. Its fasteners are fixedly installed on the refrigerator liner, and together with the front seat groove and rear seat groove of the refrigerator liner, they form the installation structure of the RV refrigerator shelf mechanism of the present invention. The rear seat groove and the front seat groove, which are set at the same height, can form a horizontal positioning groove group to place the shelf horizontally. The rear seat groove and the front seat groove, which are set higher than it, can form an oblique positioning groove group to place the shelf obliquely. In this way, the same rear seat groove can be used for both horizontal and oblique placement of the shelf, realizing flexible switching between horizontal and oblique placement of the shelf. At the same time, the rear seat groove can be fully utilized to improve the efficiency of the structure. Attached Figure Description

[0015] Figure 1 and Figure 2 This is a schematic diagram of the adjustable RV refrigerator shelf mechanism of the present invention.

[0016] Figure 3 This is a cross-sectional schematic diagram of the adjustable RV refrigerator shelf mechanism of the present invention.

[0017] Figure 4 This is a schematic diagram of the overall installation structure of the RV refrigerator shelf mechanism of the present invention.

[0018] Figure 5 This is a partial schematic diagram of the installation structure of the RV refrigerator shelf mechanism of the present invention.

[0019] Figure 6 This is a schematic diagram showing the assembly state of the fastener and the refrigerator liner of the present invention.

[0020] Figure 7 This is a schematic diagram of the shelf in use according to the present invention. Detailed Implementation

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Example

[0023] refer to Figures 1 to 3 An adjustable RV refrigerator shelf mechanism includes a shelf 1 and two symmetrically arranged mounting components. The shelf 1 is rectangular frame-shaped, but it can also be a rectangular plate-shaped structure. The shelf 1 has two symmetrically arranged front rods 11 and two symmetrically arranged rear rods 12 on its front and rear sides, respectively.

[0024] The mounting assembly includes a movable component 2 and a fixed component 3. The fixed component 3 is fixedly disposed near the end of the front rod portion 11 and has a mating groove 31 facing the end of the front rod portion 11. The movable component 2 is movably connected to the front rod portion 11 and can move along the front rod portion 11. The movable component 2 has a mating joint 21 disposed opposite to the mating groove 31 of the fixed component 3. Figure 2 and Figure 3 As shown. The connector 21 is movable to be inserted into the mating groove 31 so that the front rod 11 of the shelf 1 is positioned and connected to the connector 21, as shown. Figure 1 As shown.

[0025] Among them, such as Figure 2 As shown, the movable member 2 is movably connected to the front rod portion 11 and can move along the front rod portion 11. Moving the movable member 2 along the front rod portion 11 towards the fixed member 3, the movable member 2 can be moved until its mating joint 21 extends out of the front rod portion 11 and inserts into the mating groove 31 of the fixed member 3, as shown. Figure 1 As shown, the front end of the shelf 1 is connected to the fixed fastener 3 via the movable part 2, thereby achieving the positioning and installation of the front end of the shelf 1. Of course, by moving the movable part 2 along the front rod 11 away from the fixed fastener 3, the movable part 2 can be moved until its connecting joint 21 leaves the mating groove 31 of the fixed fastener 3, thereby achieving the disassembly of the front end of the shelf 1.

[0026] In the above structure, since the movable part 2 is movably connected to the front rod part 11, the front end of the shelf 1 can rotate freely around the movable part 2. This free rotation connection method can realize the adjustment of the horizontal or oblique arrangement of the shelf 1 in the installation structure described below.

[0027] Furthermore, the mating groove 31 of the fixing member 3 has a cylindrical groove structure, and the inner wall of the mating groove 31 has an inner wall thread. The connecting joint 21 of the movable member 2 has a cylindrical structure, and the outer wall of the connecting joint 21 has an outer wall thread corresponding to the inner wall thread, so that the connecting joint 21 is threadedly connected to the mating groove 31.

[0028] In the above structure, the connector 21 of the movable part 2 is threadedly connected to the mating groove 31 of the fixed part 3 through the threaded connection structure of the connector 21 and the mating groove 31, so that the connection between the movable part 2 and the fixed part 3 is more stable. In the positional installation state of the front end of the shelf 1, the front end of the shelf 1 and the fixed part 3 are further stably connected. This threaded connection method is very suitable for use in RV refrigerators, which can effectively avoid the vibration of the shelf 1 during the RV's travel.

[0029] In this embodiment, the middle part of the connector 21 of the movable part 2 further has a movable through hole 210 and is movably sleeved on the front rod part 11, so that the movable part 2 can be movably connected to the front rod part 11 and can move along the front rod part 11. It has the characteristics of simple structure, easy implementation and convenient assembly.

[0030] Furthermore, the end of the mating joint 21 of the movable component 2 away from the fixed component 3 also has a toggle head. The toggle head is a cylindrical structure coaxially arranged with the mating joint 21, and its outer wall has protruding strip-shaped portions 22. Multiple strip-shaped portions 22 are evenly distributed. In this structure, the strip-shaped portions 22 facilitate the user to rotate the movable component 2 at the toggle head position, thereby facilitating the threaded connection of the mating joint 21 of the movable component 2 to the mating groove 31 of the fixed component 3. Simultaneously, the strip-shaped portions 22 provide reinforcing support to the outer wall of the toggle head, thereby strengthening the toggle head.

[0031] Furthermore, the end of the actuating head of the movable part 2 away from the coupling joint 21 also has a block-shaped portion 23, and the actuating head is connected to the middle of the block-shaped portion 23. The block-shaped portion 23 is usually a rectangular block structure, which allows the movable part 2 to be rotated by the block-shaped portion 23, and also allows the coupling joint 21 of the movable part 2 to be threadedly connected to the mating groove 31 of the fixed part 3.

[0032] refer to Figures 4 to 7An installation structure for a refrigerator shelf mechanism in a motorhome includes a refrigerator liner 7 and multiple shelf mechanisms. The inner wall of the refrigerator liner 7 is provided with multiple horizontal positioning grooves arranged sequentially from top to bottom. The horizontal positioning groove group includes two front seat grooves 71 and two rear seat grooves 72 at the same height. The two front seat grooves 71 are symmetrically arranged at the front ends on both sides of the inner wall of the refrigerator liner 7, and the two rear seat grooves 72 are symmetrically arranged at the rear ends on both sides of the inner wall of the refrigerator liner 7.

[0033] The shelf mechanism adopts the adjustable RV refrigerator shelf mechanism of this embodiment. The two front rods 11 and two rear rods 12 of the shelf 1 are horizontally arranged in the refrigerator inner liner 7 by the two front seat grooves 71 and two rear seat grooves 72 of the horizontal positioning groove group, respectively.

[0034] In this embodiment, the front seat groove 71 has a front seat groove through hole 710 on the side of the refrigerator inner liner 7. The fixing member 3 of the mounting component is placed on the outside of the refrigerator inner liner 7, and its mating groove 31 passes through the front seat groove through hole 710 into the refrigerator inner liner 7. During assembly, before the refrigerator foaming process, the fixing member 3 of the shelf mechanism is placed on the outside of the refrigerator inner liner 7 and the mating groove 31 passes through the refrigerator inner liner 7. Then, the refrigerator is foamed, thereby pressing the fixing member 3 tightly to the foam layer of the refrigerator, and the fixing member 3 is firmly embedded in the refrigerator body.

[0035] The two front seat slots 71 of the previous horizontal positioning slot group and the two rear seat slots 72 of the horizontal positioning slot group closest to it below form an oblique positioning slot group, so that the shelf 1 of the shelf mechanism is obliquely arranged inside the refrigerator liner 7 with the front higher than the back.

[0036] When the shelf 1 needs to be arranged horizontally, first retract the movable part 2 to the front rod 11 so that it does not extend beyond the front rod 11, as shown below. Figure 2 As shown. Then, place the shelf 1 into the refrigerator body (that is, the refrigerator liner 7) with one side higher than the other, i.e., left higher than right. When the shelf 1 is placed near the rear seat slot 72, under the space widened to the left and right sides formed by the two rear seat slots 72 of the horizontal positioning slot group, slowly rotate the shelf 1 to lay it flat. At the same time, place the two rear rods 12 of the shelf 1 into the two rear seat slots 72 of the horizontal positioning slot group respectively. Place the two front rods 11 of the shelf 1 directly opposite the two front seat slots 71 of the horizontal positioning slot group. Then, move the movable part 2 along the front rod 11 towards the fixed part 3 and screw the movable part 2 to its connector 21 to connect to the docking slot 31 of the fixed part 3. Through the threaded connection between the connector 21 and the docking slot 31, the shelf 1 is fixedly connected to the refrigerator liner 7 from its front end, and the shelf 1 is arranged horizontally.

[0037] When the shelf 1 needs to be arranged diagonally, place the shelf 1 into the refrigerator body (i.e., the refrigerator liner 7) with one side higher than the other, such as left higher than right, and with the rear end of the shelf 1 higher than the rear end. When the shelf 1 is placed near the rear seat groove 72 where its rear rod 12 is in the lower position, and the space widens to the left and right sides formed by the two rear seat grooves 72 of the diagonal positioning groove group, slowly rotate the shelf 1 until it is symmetrical in height from left to right, and only in a high rear end position. At the same time, the shelf 1... Two rear rods 12 are placed in the two lower rear seat slots 72 respectively. The two front rods 11 of the shelf 1 are placed facing the two higher front seat slots 71. Then, the movable part 2 is moved along the front rod 11 towards the fixed part 3 and screwed to its connector 21 to connect with the mating groove 31 of the fixed part 3. The shelf 1 is fastened to the refrigerator inner liner 7 from its front end by the threaded connection of the connector 21 and the mating groove 31, and the shelf 1 is arranged at an angle.

[0038] Furthermore, when switching between the flat and angled positions of shelf 1, the movable part 2 must first be screwed away from the fixed part 3, and then the movable part 2 retracted to the front rod 11. This disengages the two front rods 11 of shelf 1 from the two front seat slots 71. Next, shelf 1 is slowly lifted with one side higher than the other, causing the two rear rods 12 of shelf 1 to disengage from their original two rear seat slots 72. This disengages shelf 1 from its original horizontal or angled positioning slots. Finally, the horizontal or angled arrangement of shelf 1 is adjusted according to the above-described method. The entire adjustment and installation process of shelf 1 requires no tools, can be operated by hand, and involves no disassembled small parts, making the entire process very convenient and efficient.

[0039] Furthermore, the rear seat groove 72 is a long, narrow groove structure. When the shelf 1 is arranged horizontally, the two rear rods 12 of the shelf 1 are respectively located in the rear of the two rear seat grooves 72. When the shelf 1 is arranged obliquely with the front higher than the rear, the two rear rods 12 of the shelf 1 are respectively located in the front of the two rear seat grooves 72. The long, narrow groove structure of the rear seat groove 72 is beneficial for accommodating both the horizontal and oblique placement of the shelf 1. The rear seat groove 72 can provide stable support for the rear end of the shelf 1 in both horizontal and oblique placement states.

[0040] Furthermore, the fixing member 3 is located on the outside of the refrigerator inner liner 7 and has a stop 34, which further enables the fixing member 3 to be positioned on the front seat groove through hole 710 of the refrigerator inner liner 7 by blocking, thereby improving the assembly efficiency of the fixing member 3 and the refrigerator inner liner 7.

Claims

1. An adjustable RV refrigerator shelf mechanism, comprising a shelf (1), wherein the shelf (1) is a rectangular frame or rectangular plate structure, and has two symmetrically arranged front rods (11) and two symmetrically arranged rear rods (12) on its front and rear sides respectively, characterized in that: It also includes two symmetrically arranged mounting components, each mounting component including a movable part (2) and a fixed part (3). The fixed part (3) is fixedly disposed near the end of the front rod (11) and has a mating groove (31) facing the end of the front rod (11). The movable part (2) is movably connected to the front rod (11) and can move along the front rod (11). The movable part (2) has a connecting joint (21) facing the mating groove (31) of the fixed part (3). The movable part (2) can be moved until its connecting joint (21) extends out of the front rod (21) and is inserted into the mating groove (31) of the fixed part (3), so that the front rod (11) of the shelf (1) is positioned and connected with the connecting joint (21).

2. The adjustable RV refrigerator shelf mechanism according to claim 1, characterized in that: The mating groove (31) of the fixing member (3) has a cylindrical groove structure. The inner wall of the mating groove (31) has an inner wall thread. The connector (21) of the movable member (2) has a cylindrical structure. The outer wall of the connector (21) has an outer wall thread corresponding to the inner wall thread, so that the connector (21) is threadedly connected to the mating groove (31).

3. The adjustable RV refrigerator shelf mechanism according to claim 2, characterized in that: The movable part (2) has a movable through hole (210) in the middle of the connector (21) and is movably sleeved on the front rod part (11).

4. The adjustable RV refrigerator shelf mechanism according to claim 3, characterized in that: The end of the connector (21) of the movable part (2) away from the fixed part (3) also has a toggle head. The toggle head is a cylindrical structure arranged coaxially with the connector (21), and its outer wall has a protruding strip (22). The strip (22) includes a plurality of strips and is evenly distributed.

5. The adjustable RV refrigerator shelf mechanism according to claim 4, characterized in that: The actuating head of the movable part (2) has a block-shaped part (23) at the end away from the connector (21), and the actuating head is connected to the middle of the block-shaped part (23).

6. An installation structure for a RV refrigerator shelf mechanism, comprising a refrigerator liner (7) and at least one shelf mechanism, wherein the inner wall of the refrigerator liner (7) is provided with a plurality of horizontal positioning grooves arranged sequentially from top to bottom, the horizontal positioning groove group comprising two front seat grooves (71) and two rear seat grooves (72) at the same height, the two front seat grooves (71) being symmetrically arranged at the front ends on both sides of the inner wall of the refrigerator liner (7), and the two rear seat grooves (72) being symmetrically arranged at the rear ends on both sides of the inner wall of the refrigerator liner (7), the shelf mechanism being an adjustable RV refrigerator shelf mechanism as described in any one of claims 1 to 5, wherein the two front rods (11) and two rear rods (12) of the shelf (1) are horizontally arranged within the refrigerator liner (7) by the two front seat grooves (71) and two rear seat grooves (72) of the horizontal positioning groove group, characterized in that: The front seat groove (71) has a front seat groove through hole (710) on the side of the refrigerator liner (7). The fixing member (3) of the mounting component is placed on the outside of the refrigerator liner (7), and its docking groove (31) passes through the front seat groove through hole (710) into the refrigerator liner (7). The two front seat grooves (71) of the upper horizontal positioning groove group and the two rear seat grooves (72) of the horizontal positioning groove group closest to it below form an oblique positioning groove group to realize that the shelf (1) of the shelf mechanism is obliquely arranged in the refrigerator liner (7) with the front higher and the back lower.

7. The installation structure of a RV refrigerator shelf mechanism according to claim 6, characterized in that: The rear seat groove (72) is a long strip groove structure. When the shelf (1) is arranged horizontally, the two rear rods (12) of the shelf (1) are located in the rear of the two rear seat grooves (72). When the shelf (1) is arranged obliquely with the front higher than the back, the two rear rods (12) of the shelf (1) are located in the front of the two rear seat grooves (72).

8. The installation structure of a RV refrigerator shelf mechanism according to claim 6, characterized in that: The fastener (3) is located on the outside of the refrigerator liner (7) and also has a stop (34).

Citation Information

Patent Citations

  • Clamping type refrigerator shelf

    CN221549077U