Integrated hinge for refrigerator

By designing an integrated hinge for the freezer that uses a half-gear and a driven gear to mesh and drive an elastic lever, the problem of existing freezer hinges requiring significant force to open has been solved, resulting in better cushioning, improved service life, and enhanced sealing.

CN223647606UActive Publication Date: 2025-12-09QINGDAO MINGHAOJIA IND & TRADE CO LTD
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Patent Information

Application Number
CN202422998836.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-12-09
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

Existing refrigerator hinges require considerable force to open, and due to the lack of a limiting mechanism, the buffer device is prone to displacement, leading to impact damage to the moving shaft, affecting service life and sealing performance.

Method used

The integrated hinge design uses a half-gear and driven gear to drive an elastic lever, combined with a buffer component, to achieve a buffering effect, enhance the hinge's buffering performance, and prevent collisions and impacts between the cabinet door and the cabinet body.

Benefits of technology

It improves the lifespan and protection of the freezer door, reduces the impact of collisions between the door and the cabinet, and protects the safety of the stored items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated hinge of a refrigerator, and relates to the technical field of hinges. The second chain block is relatively and fixedly connected with two connecting plates, the connecting plates are rotationally connected with a first chain block through a first rotating shaft, the width of the second chain block is smaller than that of the first chain block, the second chain block can be embedded into the first chain block, the first rotating shaft is sleeved with a half gear, and the first chain block and the second chain block are fixedly connected with mounting plates. The second rotating shaft is rotationally arranged in the first chain block, the second rotating shaft is sleeved with a driven gear meshed with the half gear, the second rotating shaft is fixedly connected with at least one shifting piece capable of abutting against the bottom of the first chain block, and the shifting piece is of an elastic structure. When the two chain blocks rotate, the half gear drives the driven gear to rotate, the shifting piece is driven to abut against the bottom of the first chain block, the buffering effect is achieved, the situation that a refrigerator door body is damaged due to large force when the refrigerator door body is opened is avoided, the service life of the refrigerator door body is prolonged, and the protection performance of the refrigerator door body is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to hinge technical field, concretely relates to a refrigerator integrated hinge. BACKGROUND

[0002] As a common refrigeration equipment, the refrigerator is widely used in commercial and household fields for storing various foods, medicines and other low-temperature preserved articles. The connecting hinge between the cabinet door and the cabinet plays a crucial role, not only ensuring the smooth opening and closing of the cabinet door, but also having good sealing performance, durability and stability in low-temperature environment. The traditional refrigerator hinge is usually composed of multiple independent parts, such as hinge seat, hinge shaft, connecting plate, etc. These parts are assembled together by welding, riveting or bolt connection. When opening the door, people often need a certain force to open it. However, when people use their hands with too much force, the upper and lower shelves of the hinge will collide with the opening of the door, causing impact on the refrigerator and damage to the hinge.

[0003] A novel refrigerator hinge is disclosed in Chinese Patent No. CN216277430U. The device is installed on the upper end of the movable shaft through the buffer base on the buffer device. When the cabinet door opens quickly and drives the movable shaft, the spring column at the lower end of the buffer base and the buffer cushion buffer the movable shaft to avoid the movable shaft from sliding too fast and colliding with the movable groove, thereby damaging the hinge. This not only reduces the impact force of the cabinet door, but also improves the service life of the hinge. However, when the device buffers the movable shaft through the buffer device, the buffer cushion and spring column are not provided with a limiting mechanism, which makes the spring column and buffer cushion prone to deviation, thereby reducing the buffering effect on the movable shaft.

[0004] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a refrigerator integrated hinge that solves the problems raised in the background.

[0006] To solve the above technical problems, the basic idea of the technical solution of the utility model is:

[0007] A refrigerator integrated hinge, comprising: a second chain block having two connecting plates fixedly connected opposite to each other, a first chain block being rotatably connected to the connecting plates through a first rotating shaft, the width of the second chain block being smaller than the width of the first chain block, the second chain block being embeddable in the first chain block, a half gear being sleeved on the first rotating shaft, the first chain block and the second chain block both being fixedly connected with a mounting plate;

[0008] A second rotating shaft is rotatably arranged in the first chain block, a driven gear engaged with the half gear is arranged on the second rotating shaft, at least one push piece capable of abutting against the bottom of the first chain block is fixedly connected to the second rotating shaft, and the push piece is of an elastic structure.

[0009] Optionally, the first chain block and the second chain block are both of a U-shaped structure.

[0010] Optionally, the push piece is preferably made of spring steel.

[0011] Optionally, the first chain block is provided with a groove relative to the push piece.

[0012] Optionally, the groove has an arc-shaped guide surface.

[0013] Optionally, a buffer assembly is arranged in the groove relative to the push piece, and the buffer assembly comprises:

[0014] A movable plate is movably arranged in the first chain block, a movable groove is arranged in the first chain block and capable of allowing the movable plate to move, and a spring fixedly connected to the movable plate is arranged in the movable groove.

[0015] An activity rod is fixedly connected to one end of the movable plate away from the spring, the activity rod is movably arranged between the groove and the movable groove, and a buffer plate is fixedly connected to one end of the activity rod away from the movable plate.

[0016] Optionally, a rubber pad is fixedly connected to one end of the buffer plate away from the movable plate.

[0017] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0018] 1. By arranging the push piece, the half gear and the driven gear, the two rotating shafts are relatively rotated when the two chain blocks rotate, so that the half gear drives the driven gear to rotate, the push piece abuts against the bottom of the first chain block, the buffering effect is achieved, the damage of the refrigerator door body due to large force when the refrigerator door body is opened is avoided, and the service life and the protection of the refrigerator door body are improved.

[0019] 2. By arranging the buffer assembly, the buffering effect of the hinge during the opening and closing of the cabinet door is further enhanced, especially when the cabinet door is closed, the impact force between the cabinet door and the cabinet body is effectively reduced, and the safety of the cabinet door, the cabinet body and the internal storage articles is protected.

[0020] The specific implementation of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings in the following description merely some embodiments, for those of ordinary skill in the art, without the premise of paying creative effort, can also be obtained from these drawings other drawings. In the drawings

[0022] In the drawings:

[0023] Figure 1 The overall structure of the utility model is shown in the schematic diagram;

[0024] Figure 2 The front view of the utility model is shown in the schematic diagram;

[0025] Figure 3 The utility model is Figure 1 The structure of the utility model is shown in the schematic diagram from another perspective;

[0026] Figure 4 The structure of the utility model is shown in the schematic diagram of the push piece and the groove body;

[0027] Figure 5 The structure of the utility model is shown in the schematic diagram of the buffer assembly.

[0028] In the drawings, the component list represented by each number is as follows:

[0029] 1, the first chain block; 2, the mounting plate; 3, the second chain block; 4, the connecting plate; 5, the first rotating shaft; 6, the half gear; 7, the second rotating shaft; 8, the driven gear; 9, the buffer assembly; 91, the buffer plate; 92, the movable rod; 93, the movable plate; 94, the spring; 95, the movable groove; 10, the groove body; 11, the push piece; 12, the rubber pad.

[0030] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] The utility model will be further described in detail in combination with the drawings.

[0032] Please refer to Figures 1-5 As shown in the drawings, in the embodiment, a refrigerator integrated hinge is provided, which comprises a second chain block 3, two connecting plates 4 are fixedly connected to the second chain block 3, the first chain block 1 is rotatably connected to the connecting plate 4 through the first rotating shaft 5, the width of the second chain block 3 is less than the width of the first chain block 1, the second chain block 3 can be embedded in the first chain block 1, the half gear 6 is sleeved on the first rotating shaft 5, the first chain block 1 and the second chain block 3 are fixedly connected with the mounting plate 2, the second rotating shaft 7 is rotatably arranged in the first chain block 1, the driven gear 8 meshing with the half gear 6 is sleeved on the second rotating shaft 7, at least one push piece 11 capable of abutting the bottom of the first chain block 1 is fixedly connected to the second rotating shaft 7, and the push piece 11 is of elastic structure.

[0033] Specifically, the first chain block 1 and the second chain block 3 are fixedly connected to the mounting plate 2 for mounting the hinge as a whole to the cabinet body and the cabinet door of the refrigerator, ensuring that the hinge can stably play the functions of connection and movement guidance, the second chain block 3 is rotationally connected to the first chain block 1 through the connecting plate 4 and the first rotating shaft 5, and this rotational connection mode enables the cabinet door (connected to the side of the second chain block 3) to perform opening and closing movement relative to the cabinet body (connected to the side of the first chain block 1) around the first rotating shaft 5, when the cabinet door is opened or closed, the relative rotation between the first chain block 1 and the second chain block 3 is realized, the half gear 6 on the first rotating shaft 5 is engaged with the driven gear 8 on the second rotating shaft 7, when the first chain block 1 and the second chain block 3 rotate relatively, the half gear 6 rotates and drives the driven gear 8 to rotate, thereby synchronously rotating the second rotating shaft 7, the elastic tab 11 on the second rotating shaft 7 rotates with the second rotating shaft 7, when the tab 11 rotates to a specific position (the state when the first chain block 1 and the second chain block 3 are opened), due to its elastic structure, it interacts with the bottom of the first chain block 1, thereby realizing the buffering effect of the first chain block 1 and the second chain block 3, avoiding the damage of the refrigerator door body due to too large force when opening, and improving the service life and protection of the refrigerator door body.

[0034] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the first chain block 1 and the second chain block 3 are both of the U-shaped structure, specifically, the first chain block 1 and the second chain block 3 are both designed as the U-shaped structure, this structure shape enables the chain block to be connected and assembled with other components (such as the mounting plate 2, the rotating shaft, etc.) conveniently while having sufficient strength and rigidity, and in the connection of the refrigerator cabinet door and the cabinet body, it can provide stable support and guidance.

[0035] In the embodiment, as shown in Figure 4 , the tab 11 is preferably made of spring 94 steel, specifically, the tab 11 made of spring 94 steel can maintain good performance in the process of long-term repeated elastic deformation, and is not prone to fatigue fracture, thereby ensuring the reliability and stability of the hinge function, secondly, the tab 11 can also be made of plastic.

[0036] In the embodiment, as shown in Figure 4 and Figure 5 , the first chain block 1 is provided with a groove 10 relative to the tab 11, and the groove 10 has an arc-shaped guide surface, specifically, the groove 10 provides space and guidance for the movement of the tab 11, limits the movement range of the tab 11, and ensures that the tab 11 interacts with the bottom of the first chain block 1 within a predetermined track, of course, the tab 11 abuts against the first chain block 1 when in the groove 10.

[0037] In the embodiment, as shown in Figure 4and Figure 5 As shown, the slot body 10 is provided with a buffer assembly 9 relative to the dial 11, the buffer assembly 9 includes a movable plate 93, which is movably arranged in the first chain block 1, the first chain block 1 is provided with a movable slot 95 for the movable plate 93, the movable slot 95 is provided with a spring 94 fixedly connected with the movable plate 93, an activity rod 92 is fixedly connected with the movable plate 93 away from the spring 94, the activity rod 92 is movably arranged between the slot body 10 and the movable slot 95, the activity rod 92 is fixedly connected with a buffer plate 91 away from the movable plate 93, the buffer plate 91 is fixedly connected with a rubber pad 12 away from the movable plate 93, specifically, the movable plate 93 is connected in the movable slot 95 through the spring 94, when the dial 11 contacts with the buffer assembly 9, the force of the dial 11 is transmitted to the buffer plate 91, the buffer plate 91 pushes the activity rod 92, the activity rod 92 drives the movable plate 93 to compress the spring 94 in the movable slot 95, the compression process of the spring 94 absorbs the energy transmitted by the dial 11, and the buffer effect is realized, when the force of the dial 11 disappears, the spring 94 returns to the original state, and pushes the movable plate 93, the activity rod 92 and the buffer plate 91 back to the initial position, so as to prepare for the next buffering action, the buffer assembly 9 further enhances the buffering effect of the hinge during the opening and closing of the cabinet door, especially when closing the door, the impact force between the cabinet door and the cabinet body can be effectively reduced, and the safety of the cabinet door, the cabinet body and the internal storage goods is protected; secondly, the rubber pad 12 has good elasticity and buffering performance, and can further disperse and absorb the impact force transmitted by the dial 11, so that the buffering effect is more soft.

[0038] Working principle:

[0039] The first chain block 1 and the second chain block 3 are fixedly connected with the mounting plate 2 for mounting the hinge as a whole on the cabinet body and the cabinet door of the refrigerator, so that the hinge can stably play the functions of connection and movement guiding, the second chain block 3 is rotationally connected with the first chain block 1 through the connecting plate 4 and the first rotating shaft 5, the rotationally connecting mode enables the cabinet door (connected on the side of the second chain block 3) to perform opening and closing movement relative to the cabinet body (connected on the side of the first chain block 1) around the first rotating shaft 5, when the cabinet door is opened or closed, the relative rotation between the first chain block 1 and the second chain block 3 is realized, the half gear 6 on the first rotating shaft 5 is engaged with the driven gear 8 on the second rotating shaft 7, when the first chain block 1 and the second chain block 3 relatively rotate, the half gear 6 rotates and drives the driven gear 8 to rotate, so that the second rotating shaft 7 synchronously rotates, the elastic tab 11 on the second rotating shaft 7 rotates along with the second rotating shaft 7, when the tab 11 rotates to a specific position (the state when the first chain block 1 and the second chain block 3 are opened) along the groove 10, the force of the tab 11 is transmitted to the buffer plate 91, the buffer plate 91 pushes the movable rod 92, the movable rod 92 drives the movable plate 93 to compress the spring 94 in the movable groove 95, the compression process of the spring 94 absorbs the energy transmitted by the tab 11, so that the buffer effect is realized, when the force of the tab 11 disappears, the spring 94 restores to the original state, pushes the movable plate 93, the movable rod 92 and the buffer plate 91 back to the initial position, and prepares for the next buffering action, the buffer assembly 9 further enhances the buffering effect of the hinge during the opening and closing process of the cabinet door, especially when the door is closed, the impact force between the cabinet door and the cabinet body can be effectively reduced, the safety of the cabinet door, the cabinet body and the internal storage goods is protected, the damage of the refrigerator door body due to large force when the door is opened is avoided, and the service life and the protection of the refrigerator door body are improved.

[0040] The utility model is not limited to the above-mentioned embodiment, anyone should know that the structural change made under the inspiration of the utility model, any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model does not describe the technology, shape and structure part in detail, which is the known technology.

Claims

1. A freezer integrated hinge, characterized by, The utility model relates to a chain block, which comprises: A second chain block (3) is fixedly connected with two connecting plates (4), the connecting plates (4) are rotatably connected with a first chain block (1) through a first rotating shaft (5), the width of the second chain block (3) is less than the width of the first chain block (1), the second chain block (3) can be embedded in the first chain block (1), a half gear (6) is sleeved on the first rotating shaft (5), the first chain block (1) and the second chain block (3) are fixedly connected with mounting plates (2); A second rotating shaft (7) is rotatably arranged in the first chain block (1), a driven gear (8) engaged with the half gear (6) is sleeved on the second rotating shaft (7), at least one push piece (11) capable of abutting against the bottom of the first chain block (1) is fixedly connected to the second rotating shaft (7), and the push piece (11) is of elastic structure.

2. A refrigerator integrated hinge according to claim 1, characterized in that, The first chain block (1) and the second chain block (3) are both of the shape of a concave.

3. The integrated freezer hinge of claim 1, wherein, The push piece (11) is preferably made of spring (94) steel.

4. A unitized hinge for a refrigerator according to claim 3, wherein The first chain block (1) is provided with a groove (10) opposite to the push piece (11).

5. A unitized hinge for a refrigerator according to claim 4, wherein The groove (10) has an arc-shaped guide surface.

6. A unitized hinge for a refrigerator according to claim 4, wherein A buffer assembly (9) is arranged in the groove (10) opposite to the push piece (11), and the buffer assembly (9) comprises: A movable plate (93) movably arranged in the first chain block (1), the first chain block (1) is provided with a movable groove (95) for the movable plate (93), and a spring (94) fixedly connected with the movable plate (93) is arranged in the movable groove (95); An activity rod (92) is fixedly connected with one end of the movable plate (93) away from the spring (94), the activity rod (92) is movably arranged between the groove (10) and the movable groove (95), and a buffer plate (91) is fixedly connected with one end of the activity rod (92) away from the movable plate (93).

7. A refrigerator integrated hinge according to claim 6, characterized in that, The buffer plate (91) is fixedly connected with a rubber pad (12) away from the movable plate (93).

Citation Information

Patent Citations

  • Novel refrigerator hinge

    CN216277430U