Box body structure of portable refrigerator

By incorporating the drainage channels, casters, and support legs of the portable refrigerator, along with a pull rod design, the problem of traditional portable refrigerators requiring flipping for drainage is solved. This achieves drainage without flipping, reduces physical burden and cleaning risks, and improves user comfort and cleanliness.

CN223769112UActive Publication Date: 2026-01-06GUANGDONG INDELB ENTERPRISE CO LTD
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Patent Information

Application Number
CN202520127416.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-18
Publication Date
2026-01-06
Estimated Expiration
2035-01-18

AI Technical Summary

Technical Problem

Traditional portable refrigerators require flipping during the defrosting process to drain the melted water, which puts a lot of physical strain on users, increases the risk of damage to items, and results in poor cleanliness.

Method used

The design incorporates drainage channels, rollers, and support feet, combined with a pull rod structure, allowing for drainage without flipping the refrigerator and enabling movement of the refrigerator via the rollers, reducing friction and cleaning risks.

Benefits of technology

It simplifies the drainage process, reduces the physical burden on users, avoids external contamination of the refrigerator, improves user comfort and equipment cleanliness, and extends the service life of the support legs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a box body structure of a portable refrigerator, which comprises a refrigerator main body, a freezing chamber is arranged in the refrigerator main body, the lower part of the freezing chamber is connected with a drainage channel for draining water from the lower part of the refrigerator main body, and a plug capable of closing the drainage channel is arranged on the drainage channel. Rollers are rotatably connected below the rear portion of the refrigerator body, supporting legs matched with the rollers to support the refrigerator body so as to enable a drainage port of the drainage channel to be higher than the ground are arranged below the front portion of the refrigerator body, the drainage channel connected with the lower portion of the freezing chamber allows a user to easily drain internal accumulated water without turning over the refrigerator, and the drainage process is simplified. The possibility that the outer surface of the refrigerator makes contact with the ground is avoided, the contamination risk of dust, dirt and bacteria is reduced, it can be guaranteed that the drainage port is always higher than the ground through matched use of the supporting legs and the rollers, drainage blockage is prevented, and the drainage efficiency and sanitary conditions can be further improved.
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Description

Technical Field

[0001] This utility model relates to the field of portable refrigerator technology, and in particular to a cabinet structure for a portable refrigerator. Background Technology

[0002] Portable refrigerators are widely used in daily life for outdoor activities, travel, or temporary storage of food and beverages. While traditional portable refrigerators can meet basic refrigeration needs, they have some inconveniences in practical use. For example, the meltwater produced by frost in the freezer compartment during thawing often requires turning the portable refrigerator upside down to drain.

[0003] For users, having to flip or invert the entire refrigerator to drain water is very inconvenient, especially when the refrigerator is heavy or large. This not only increases the user's physical burden but may also damage the refrigerator due to improper operation. If there are unsecured liquid containers or other items inside the refrigerator, these items can easily spill or break during the flipping process, causing additional trouble and losses. Each time water is drained, it needs to come into contact with the ground or other surfaces, which may cause the exterior of the refrigerator to be covered with dust and dirt, affecting its cleanliness.

[0004] This utility model is based on the above-mentioned circumstances. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a cabinet structure for a portable refrigerator that facilitates the drainage of melted ice water from the freezer compartment.

[0006] This utility model is achieved through the following technical solution:

[0007] A portable refrigerator body structure includes a refrigerator body, a freezer compartment inside the refrigerator body, a drain channel for draining water from the bottom of the refrigerator body connected to the lower part of the freezer compartment, a plug for closing the drain channel, a roller rotatably connected to the lower rear part of the refrigerator body, and a support foot that cooperates with the roller to support the refrigerator body so that the drain outlet of the drain channel is higher than the ground at the lower front part of the refrigerator body.

[0008] As described above, the body structure of a portable refrigerator includes a pull rod structure connected to the front side of the refrigerator body for lifting the front end of the refrigerator body to lift the support legs off the ground.

[0009] The portable refrigerator housing structure described above includes a connecting seat connected to the front side of the refrigerator body and a pull rod rotatably connected to the connecting seat.

[0010] As described above, in the case structure of a portable refrigerator, the end of the pull rod connected to the connecting seat is provided with a limiting protrusion to restrict its rotation angle.

[0011] As described above, the housing structure of a portable refrigerator includes a connecting seat with a mating block that engages with a limiting protrusion to allow the pull rod to rotate a maximum of ninety degrees with the refrigerator body.

[0012] As described above, the body structure of a portable refrigerator also includes a clamp on the front side of the refrigerator body that can lock the pull rod to limit its rotation.

[0013] As described above, the structure of a portable refrigerator includes a front rod and side rods connected to both ends of the front rod. A reinforcing beam is also provided between the two side rods to enhance the stress resistance of the pull rod.

[0014] As described above, the body structure of a portable refrigerator includes a front rod that is round, and side rods and reinforcing beams that are square. The lower parts of the side rods and reinforcing beams are provided with grooves to reduce material usage.

[0015] As described above, the cabinet structure of a portable refrigerator includes reinforcing ribs within the groove.

[0016] As described above, the body structure of a portable refrigerator includes handles on both the front and rear sides of the refrigerator body for easy lifting.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The drainage channel connected to the bottom of the freezer compartment allows users to easily drain internal water without tipping the refrigerator over. This simplifies the drainage process, reduces user effort, and prevents the refrigerator's outer surface from contacting the ground, minimizing the risk of dust, dirt, and bacteria contamination and helping to maintain the cleanliness of the appliance. A plug is installed in the drainage channel to seal it when drainage is not needed, limiting cold air leakage and improving freezing efficiency. The rollers connected to the lower rear of the refrigerator body and the support feet at the lower front ensure stability when placed on the ground, while also allowing users to easily move the refrigerator as needed. The combination of the support feet and rollers ensures that the drain outlet is always above the ground, preventing blockages and further improving drainage efficiency and hygiene.

[0019] 2. The pull rod structure allows users to easily lift the front of the refrigerator, lifting the support feet off the ground. This allows for movement solely by the rear casters, significantly reducing the effort required to move the refrigerator. It also avoids direct friction between the support feet and the ground, reducing wear and tear, extending their lifespan, and keeping the support feet clean. The pull rod design incorporates ergonomic principles, allowing users to lift the refrigerator in a more natural posture, reducing bending or twisting movements, lowering pressure on the lower back and improving comfort and safety.

[0020] 3. The connecting seat is equipped with a matching block that cooperates with the limiting protrusion to allow the maximum rotation of the pull rod and the refrigerator body to be ninety degrees. This prevents the refrigerator body from rotating too much when the front of the refrigerator is lifted by the pull rod, which would cause the support foot to easily touch the user. Conversely, if the pull rod angle is too large, the refrigerator body will rotate too little when the user pulls the refrigerator, causing the support foot to be too close to the ground and easily rub against the ground. Attached Figure Description

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the tie rod structure in this utility model;

[0025] Figure 4 This is a schematic diagram of the tie rod structure in this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1 to 4 The portable refrigerator shown has a cabinet structure including a refrigerator body 1, a freezer compartment 2 inside the refrigerator body 1, a drain channel 3 for draining water from the bottom of the refrigerator body 1 connected to the lower part of the freezer compartment 2, a plug 4 for closing the drain channel 3, a roller 5 rotatably connected to the lower rear part of the refrigerator body 1, and a support foot 6 for supporting the refrigerator body 1 in cooperation with the roller 5 so that the drain outlet of the drain channel 3 is higher than the ground.

[0028] The drain channel 3 connected to the lower part of the freezer compartment 2 allows users to easily drain internal water without tipping the refrigerator over, simplifying the drainage process, reducing the physical burden on users, and preventing the refrigerator's outer surface from contacting the ground. This reduces the risk of dust, dirt, and bacteria contamination, helping to maintain the cleanliness of the appliance. A plug 4 is provided on the drain channel 3 to seal it when drainage is not needed, limiting cold air leakage and improving freezing efficiency. The rollers 5 rotating at the lower rear of the refrigerator body 1 and the support feet 6 at the lower front ensure the refrigerator's stability when placed, while also allowing users to easily move the refrigerator as needed. The combination of the support feet 6 and the rollers 5 ensures that the drain outlet is always above the ground, preventing blockage and further improving drainage efficiency and hygiene.

[0029] Specifically, a drain pipe is connected to the bottom of the freezer compartment 2, the drain channel 3 is the pipe hole of the drain pipe, the freezer compartment 2 is provided with a lower groove corresponding to the position of the drain pipe, and the plug is provided in the lower groove.

[0030] In one embodiment, the support foot 6 is connected to the refrigerator body 1 by a threaded fastener. Of course, the support foot 6 can also be connected to the refrigerator body 1 by glue or other connection methods.

[0031] In one embodiment, a pull rod structure 7 is connected to the front side of the refrigerator body 1 for lifting the front end of the refrigerator body 1, thereby lifting the support leg 6 off the ground. The pull rod structure 7 allows the user to easily lift the front end of the refrigerator, causing the support leg 6 to leave the ground, thus moving it solely by the rear rollers 5. This greatly reduces the force required to move the refrigerator, avoids direct friction between the support leg 6 and the ground, reduces wear on the support leg 6, extends its service life, and keeps the support leg 6 clean. The design of the pull rod structure 7 takes ergonomic principles into account, allowing the user to adopt a more natural posture when lifting the front end of the refrigerator, reducing bending or twisting movements, lowering pressure on the waist and back, and improving comfort and safety during use.

[0032] Specifically, the pull rod structure 7 includes a connecting seat 71 connected to the front side of the refrigerator body 1 and a pull rod 72 rotatably connected to the connecting seat 71. The connecting seat 71 is connected to the refrigerator body 1 by a threaded fastener, and the pull rod 72 is U-shaped and rotatably connected to the connecting seat 71 by a rotating shaft.

[0033] Furthermore, a limiting protrusion 73 is provided on the end of the pull rod 72 that connects to the connecting seat 71 to restrict its rotation angle. The connecting seat 71 is provided with a mating block 711 that cooperates with the limiting protrusion 73 to allow the pull rod 72 and the refrigerator body 1 to rotate a maximum of ninety degrees. This prevents the pull rod 72 from rotating too much when the front of the refrigerator is lifted by the pull rod 72, thus avoiding the refrigerator body 1 rotating too much when the user pulls the refrigerator, which could cause the support foot 6 to easily touch the user. Conversely, if the pull rod 72 rotates too little when the user pulls the refrigerator, the support foot 6 will be too close to the ground and easily rub against the ground. The limiting protrusion 73 and the pull rod 72 are an integral structure.

[0034] In one embodiment, the front side of the refrigerator body 1 is also provided with a pipe clamp 74 that can lock the pull rod 72 to limit its rotation. The pipe clamp 74 is connected to the refrigerator body 1 by a threaded fastener.

[0035] Furthermore, the tie rod 72 includes a front rod 721 and side rods 722 connected to both ends of the front rod 721. A reinforcing beam 723 for enhancing the stress resistance of the tie rod 72 is also provided between the two side rods 722. The front rod 721 is a round rod, which allows it to be better secured to the pipe clamp 74. The side rods 722 and the reinforcing beam 723 are square rods. The lower part of the side rods 722 and the reinforcing beam 723 is provided with a groove 724 for reducing material, and a reinforcing rib 725 is provided in the groove 724.

[0036] In one embodiment, the refrigerator body 1 is provided with handles 8 on both the front and rear sides for easy lifting. Specifically, the handles 8 are recessed into the refrigerator body 1, thus improving its aesthetics.

Claims

1. A case structure of a portable refrigerator, characterized by comprising: The refrigerator body (1) is provided with a freezing chamber (2) in the inside, the lower part of the freezing chamber (2) is connected with a drain channel (3) for draining water from the lower part of the refrigerator body (1), the drain channel (3) is provided with a plug (4) capable of closing the drain channel (3), the rear lower part of the refrigerator body (1) is rotatably connected with a roller (5), the front lower part of the refrigerator body (1) is provided with a supporting leg (6) cooperating with the roller (5) to support the refrigerator body (1) so that the drain outlet of the drain channel (3) is higher than the ground.

2. The case structure of a portable refrigerator according to claim 1, wherein: The front side of the refrigerator body (1) is connected with a pull rod structure (7) for lifting the front end of the refrigerator body (1) so that the supporting leg (6) is away from the ground.

3. The case structure of a portable refrigerator according to claim 2, wherein: The pull rod structure (7) comprises a connecting seat (71) connected to the front side of the refrigerator body (1) and a pull rod (72) rotatably connected to the connecting seat (71).

4. The case structure of a portable refrigerator according to claim 3, wherein: The end of the pull rod (72) connected to the connecting seat (71) is provided with a limiting protrusion (73) limiting the rotation angle.

5. The case structure of a portable refrigerator according to claim 4, wherein: The connecting seat (71) is provided with a cooperating block (711) cooperating with the limiting protrusion (73) so that the maximum rotation angle of the pull rod (72) and the refrigerator body (1) is ninety degrees.

6. The portable refrigerator case structure according to claim 3, wherein: The front side of the refrigerator body (1) is further provided with a pipe clamp (74) capable of locking the pull rod (72) to limit the rotation thereof.

7. A portable refrigerator cabinet structure according to any one of claims 3 to 6, characterized in that: The pull rod (72) comprises a front rod (721) and side rods (722) connected to both ends of the front rod (721), and a reinforcing beam (723) is further arranged between the two side rods (722) to strengthen the stress resistance of the pull rod (72).

8. The case structure of a portable refrigerator according to claim 7, wherein: The front rod (721) is a round rod, the side rods (722) and the reinforcing beam (723) are square rods, and the lower parts of the side rods (722) and the reinforcing beam (723) are provided with grooves (724) for reducing material.

9. The case structure of a portable refrigerator according to claim 8, wherein: The grooves (724) are provided with reinforcing ribs (725).

10. A portable refrigerator case structure according to any one of claims 1 to 6, characterized in that: The front and rear sides of the refrigerator body (1) are both provided with handle portions (8) facilitating lifting the refrigerator body (1).