High-strength refrigerator hinge

Abstract

The invention relates to a high-strength refrigerator hinge which comprises a box body connecting piece and a door body connecting piece which are rotationally connected through a hinge shaft, a buffer column parallel to the hinge shaft is arranged on the door body connecting piece, and a sliding groove matched with the track of the buffer column during rotation is formed in the box body connecting piece. The top rod is elastically clamped on the box body connecting piece, the limiting seat is fixedly arranged on the box body connecting piece, the top rod movably penetrates through the limiting seat, one end of the top rod abuts against the buffering column, two sets of limiting blocks are arranged on the top rod at intervals, and the limiting seat is located between the two sets of limiting blocks. The two sets of limiting blocks arranged on the ejector rod are matched with the limiting seats on the box body connecting piece, so that when the refrigerator door body is opened or closed, the limiting blocks can abut against the limiting seats firstly, the situation that the buffer columns collide with the two ends of the sliding grooves can be effectively avoided, and in other words, the collision of the buffer columns to the ends of the sliding grooves is converted into the collision of the limiting blocks to the limiting seats; therefore, the strength and the service life of the hinge can be effectively improved.

Description

Technical Field

[0001] The invention relates to the field of refrigerator hinges, in particular to a high-strength refrigerator hinge. Background Art

[0002] The opening and closing of the refrigerator door needs to be achieved through a hinge assembly. The hinge assembly is usually composed of two simple connecting blocks hinged and matched with a guide groove. It has a simple structure. When using this hinge assembly, the refrigerator door body will often cause a large impact force on both ends of the slide groove when it is fully closed or fully opened. The wall thickness at both ends of the slide groove is thin and usually weak, so it lacks impact resistance. As a result, after long-term use, the refrigerator door body will be affected by frequent collisions on both ends of the slide groove. Its structural stability will not only reduce the service life of the refrigerator, but also affect the safety of use of the refrigerator. Summary of the invention

[0003] In view of this, in order to solve the above technical problems, the present invention provides a high-strength refrigerator hinge that can avoid direct and severe impact on the slide slot and cause damage to the slide slot.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A high-strength refrigerator hinge comprises a box connecting member and a door connecting member rotatably connected by a hinge shaft, the door connecting member is provided with a buffer column parallel to the hinge shaft, the box connecting member is provided with a slide groove matching the trajectory of the buffer column when rotating, and is characterized in that it also comprises a top rod elastically clamped on the box connecting member, and a limit seat fixed on the box connecting member, the top rod can movably pass through the limit seat and one end of which abuts against the buffer column, two groups of limit blocks are arranged on the top rod at intervals, and the limit seat is located between the two groups of limit blocks.

[0006] In the above technical solution, when the refrigerator hinge assembly is in use, the door body connecting part can be connected to the refrigerator door body, and the box body connecting part can be connected to the refrigerator box body. When the refrigerator door body is closed or opened, under the elastic force of the top rod, the buffer column slides smoothly in the slide groove, thereby effectively absorbing the impact force generated when the door body rotates, reducing the instantaneous stress directly acting on the hinge shaft and the connecting part, thereby greatly extending the service life of the hinge and the entire refrigerator.

[0007] In addition, the two groups of limit blocks arranged on the top rod cooperate with the limit seats on the box body connector, so that when the refrigerator door is opened or closed, the limit blocks can first abut against the limit seats, which can effectively prevent the buffer column from hitting the two ends of the slide slot, that is, the impact of the buffer column on the end of the slide slot is converted into the impact of the limit block on the limit seat, so that the refrigerator door can be prevented from hitting the weak part of the hinge when opening and closing, thereby improving the strength and service life of the hinge. In addition, the opening and closing angle of the door body can also be controlled by controlling the spacing between the two groups of limit blocks, which is more flexible to use.

[0008] Furthermore, each group of the limit blocks is two that are relatively arranged on the top rod. When the door body connecting member rotates, the two groups of the limit blocks can respectively abut against the upper end surface or the lower end surface of the limit seat.

[0009] In the above technical solution, the setting of two sets of limit blocks effectively limits the opening and closing range of the door body, ensuring that the door body can reach the predetermined position each time it is opened or closed, preventing damage to the door body due to excessive opening or closing, and enhancing the stability and safety of the entire door system. Each set of limit blocks has two, which can effectively increase the contact area between the limit block and the limit seat, thereby reducing the impact force on the limit block, so as to further improve the strength of the hinge.

[0010] Furthermore, a mounting seat is provided on the box body connecting member, a clamping block is provided on the top rod and an elastic member is sleeved thereon, an end of the top rod away from the buffer column can movably pass through the mounting seat, and the elastic member is located between the limit block and the mounting seat.

[0011] In the above technical solution, the arrangement of the push rod and the elastic member can realize the buffering function of the hinge. When the door body is closed, the push rod is pressed to push the limit block to compress the elastic member. The elastic member can absorb and disperse the impact force, thereby protecting the hinge system and the refrigerator body from damage. At the same time, the resilience of the elastic member also helps the door body to maintain a certain opening force during the opening process, making the operation smoother. At the same time, due to the presence of the elastic member, when the door body is completely closed, the elastic member can provide additional pressure to form a closer contact between the door body and the box body, thereby improving the sealing of the refrigerator.

[0012] Furthermore, connecting blocks are provided at both ends of the elastic member, and the two connecting blocks can abut against the clamping block and the mounting seat respectively.

[0013] In the above technical solution, the setting of the connecting block enables the elastic member to abut against the clamping block and the mounting seat more stably, so that its contact area with the clamping block or the mounting seat is larger, which can effectively exert its elastic effect and effectively avoid the elastic member from falling off or shifting when used for a long time or subjected to large external forces, thereby enhancing the stability and reliability of the connection.

[0014] Furthermore, one end of the push rod close to the buffer column is movably connected to the buffer column through a bearing bush.

[0015] In the above technical solution, the bearing serves as the contact part between the push rod and the buffer column, and its smooth surface can significantly reduce the friction coefficient between the two, thereby reducing the friction and wear generated during the opening or closing process of the door body, which not only extends the service life of the push rod and the buffer column, but also improves the operating efficiency and stability of the entire door system.

[0016] Furthermore, the bearing is a sheet structure with a "U"-shaped cross-section, the bearing is sleeved on the outer periphery of the buffer column, and the push rod is provided with a groove for clamping the bearing.

[0017] In the above technical solution, the "U"-shaped bearing design fully considers the lubrication requirements of the hinge, and is convenient for adding lubricating oil or grease inside to further reduce friction and wear. In addition, this structure can fit tightly on the outer periphery of the buffer column to form a stable support structure, and can be easily mounted on the buffer column without complicated installation steps or tools.

[0018] Furthermore, there are two slide grooves, which are respectively arranged on opposite sides of the box connecting piece, and both ends of the buffer column are respectively clamped in the two slide grooves.

[0019] In the above technical solution, by setting the slide grooves on opposite sides of the box body connector, a symmetrical structural layout is formed, which makes the door body more stable during opening and closing, and reduces the possibility of shaking and deflection. In addition, the design of the two slide grooves allows the buffer column to be subjected to more uniform force during the sliding process. When the door body is subjected to external force, the two slide grooves can share these forces together, avoiding damage or deformation caused by excessive force on a single slide groove, thereby improving the overall bearing capacity and durability of the hinge system.

[0020] Furthermore, the limiting seat and the mounting seat can be detachably mounted on the box connecting piece.

[0021] In the above technical solution, the detachable design enables the limit seat and the mounting seat to be easily removed or installed from the box body connector as needed, which greatly facilitates the adjustment, upgrade or replacement of the door system. And because the limit seat and the mounting seat are both detachable, they can be inspected, cleaned or replaced separately during maintenance without large-scale disassembly of the entire door system.

[0022] Furthermore, the box connecting piece is provided with a plurality of first mounting holes.

[0023] In the above technical solution, the design of multiple first mounting holes provides higher flexibility for the installation of the refrigerator hinge system. The appropriate mounting hole positions can be selected for installation according to the specific structure and installation requirements of the refrigerator body, thereby ensuring that the hinge system can be firmly fixed on the body and meet the opening and closing requirements of the door body.

[0024] Furthermore, the door body connecting member is provided with a plurality of second mounting holes.

[0025] In the above technical solution, the design of multiple second mounting holes enables the door body connecting parts to form multi-point connections with the door body, thereby greatly enhancing the stability of the connection, ensuring that the door body can maintain stable operation during frequent opening and closing, and reducing failures and safety hazards caused by loose connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the overall structural diagrams of an embodiment of the present invention.

[0027] Figure 2 This is the second schematic diagram of the overall structure of an embodiment of the present invention.

[0028] Figure 3 This is a state diagram of the overall structure change of an embodiment of the present invention.

[0029] Figure markings: 1-box connecting piece; 11-slide groove; 12-first mounting hole; 2-door connecting piece; 21-second mounting hole; 3-hinge shaft; 4-buffer column; 5-top rod; 51-limiting block; 52-clamping block; 6-limiting seat; 7-mounting seat; 8-elastic piece; 81-connecting block; 9-bearing shell. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0031] Please refer to Figure 1-Figure 3 , a preferred embodiment of the present invention is as follows.

[0032] A high-strength refrigerator hinge includes a box connecting member 1 and a door connecting member 2 which are rotatably connected via a hinge shaft 3, a buffer column 4 which is parallel to the hinge shaft 3 is provided on the door connecting member 2, and a slide groove 11 which matches the trajectory of the buffer column 4 when rotating is provided on the box connecting member 1. It is characterized in that it also includes a top rod 5 which is elastically clamped on the box connecting member 1, and a limit seat 6 which is fixed on the box connecting member 1, the top rod 5 can movably pass through the limit seat 6 and one end of which abuts against the buffer column 4, and two groups of limit blocks 51 are arranged on the top rod 5 at intervals, and the limit seat 6 is located between the two groups of limit blocks 51. Among them, the box connecting member 1 and the door connecting member 2 are both plate structures which are "U"-shaped as a whole, and the door connecting member 2 can be clamped on the box connecting member 1, so that the connection between the two can be convenient. The buffer column 4 is located below the hinge shaft 3, and there is a certain distance between the buffer column 4 and the hinge shaft 3. The buffer column 4 can swing around the hinge shaft 3 and its swinging trajectory matches the slide slot 11. In addition, the interval between the two sets of limit blocks 51 matches the maximum swing angle of the door body connecting member 2, that is, when the door body connecting member 2 rotates to the maximum angle, the two sets of limit blocks 51 abut against the limit seats 6 respectively.

[0033] When the refrigerator hinge assembly of this embodiment is in use, the door body connector 2 can be connected to the refrigerator door, and the box connector 1 can be connected to the refrigerator box. When the refrigerator door is closed or opened, under the elastic force of the top rod 5, the buffer column 4 slides smoothly in the slide groove 11, thereby effectively absorbing the impact force generated when the door rotates, reducing the instantaneous stress directly acting on the hinge shaft 3 and the connector, thereby greatly extending the service life of the hinge and the entire refrigerator.

[0034] In addition, the two groups of limit blocks 51 arranged on the top rod 5 cooperate with the limit seat 6 on the box connector 1, so that when the refrigerator door is opened or closed, the limit block 51 can first abut against the limit seat 6, which can effectively prevent the buffer column 4 from hitting the two ends of the slide groove 11, that is, the impact of the buffer column 4 on the end of the slide groove 11 is converted into the impact of the limit block 51 on the limit seat 6, so that the refrigerator door can be prevented from hitting the weak part of the hinge when opening and closing, thereby improving the strength and service life of the hinge. In addition, the opening and closing angle of the door body can also be controlled by controlling the spacing between the two groups of limit blocks 51, which is more flexible to use.

[0035] In this embodiment, each group of limit blocks 51 is two relatively arranged on the top rod 5, and when the door body connecting member 2 rotates, the two groups of limit blocks 51 can respectively abut against the upper end surface or the lower end surface of the limit seat 6. When the refrigerator door is closed, one group of limit blocks 51 abuts against the lower end surface of the limit seat 6, and when the door is opened, the other group of limit blocks 51 abuts against the upper end surface of the limit seat 6.

[0036] The two sets of limit blocks 51 in this embodiment effectively limit the opening and closing range of the door body, ensure that the door body can reach the predetermined position each time it is opened or closed, prevent damage to the door body due to excessive opening or closing, and enhance the stability and safety of the entire door system. Each set of limit blocks 51 has two, which can effectively increase the contact area between the limit block 51 and the limit seat 6, thereby reducing the impact force on the limit block 51, so as to further improve the strength of the hinge.

[0037] In this embodiment, the box connector 1 is further provided with a mounting seat 7, the top rod 5 is provided with a clamping block 52 and a sleeve of an elastic member 8, the end of the top rod 5 away from the buffer column 4 can movably pass through the mounting seat 7, and the elastic member 8 is located between the limit block 51 and the mounting seat 7. Among them, the clamping block 52 and the top rod 5 are an integrally formed structure, and the introduction of the elastic member 8, such as a spring or a rubber gasket, effectively alleviates the impact of the door body on the box connector 1 and the entire door system during the opening or closing process, reduces the wear and noise of mechanical parts, and improves the comfort and durability of use.

[0038] The arrangement of the push rod 5 and the elastic member 8 can also realize the buffering function of the hinge. When the door body is closed, the push rod 5 is subjected to pressure to push the limit block 51 to compress the elastic member 8. The elastic member 8 can absorb and disperse the impact force, thereby protecting the hinge system and the refrigerator body from damage. At the same time, the resilience of the elastic member 8 also helps the door body to maintain a certain opening force during the opening process, making the operation smoother. At the same time, due to the presence of the elastic member 8, when the door body is completely closed, the elastic member 8 can provide additional pressure to form a closer contact between the door body and the box body, thereby improving the sealing of the refrigerator.

[0039] In this embodiment, both ends of the elastic member 8 are provided with connecting blocks 81, and the two connecting blocks 81 can respectively abut against the clamping block 52 and the mounting seat 7. The connecting blocks 81 are in a sheet-like structure, which is used to support the elastic member 8, so that the elastic member 8 can abut against the clamping block 52 and the mounting seat 7 more stably, so that the contact area between the elastic member 8 and the clamping block 52 or the mounting seat 7 is larger, and its elastic effect can be effectively exerted, and the elastic member 8 is effectively prevented from falling off or shifting when used for a long time or subjected to a large external force, thereby enhancing the stability and reliability of the connection.

[0040] In this embodiment, one end of the push rod 5 close to the buffer column 4 is movably connected to the buffer column 4 through a bearing bush 9. The buffer column 4, the bearing bush 9 and the push rod 5 are all independent movable structures, and the three cooperate with each other.

[0041] Among them, the bearing bush 9 is the contact part between the top rod 5 and the buffer column 4. Its smooth surface can significantly reduce the friction coefficient between the two, thereby reducing the friction and wear generated during the opening or closing process of the door body, which not only prolongs the service life of the top rod 5 and the buffer column 4, but also improves the operating efficiency and stability of the entire door system. In addition, as an independent component, the bearing bush 9 can be easily maintained and replaced. When the bearing bush 9 is worn or damaged due to long-term use, it only needs to be removed from the top rod 5 and the buffer column 4 and replaced with a new bearing bush 9, without large-scale disassembly of the entire door structure.

[0042] In this embodiment, the bearing shell 9 is a sheet structure with a "U"-shaped cross section. The bearing shell 9 is sleeved on the outer periphery of the buffer column 4, and the push rod 5 is provided with a groove for clamping the bearing shell 9.

[0043] The "U"-shaped bearing bush 9 fully considers the lubrication requirements of the hinge, and is convenient for adding lubricating oil or grease inside to further reduce friction and wear. In addition, this structure can fit tightly on the outer periphery of the buffer column 4 to form a stable support structure, and can be easily mounted on the buffer column 4 without complicated installation steps or tools.

[0044] It should be noted that there are two slide grooves 11, which are respectively arranged on opposite sides of the box connector 1, and the two ends of the buffer column 4 are respectively clamped in the two slide grooves 11. Both slide grooves 11 are through-groove structures, and the diameters of the two ends of the buffer column 4 are smaller than the width of the slide groove 11, that is, there is a gap between the buffer column 4 and the slide groove 11.

[0045] This embodiment forms a symmetrical structural layout by arranging the slide grooves 11 on opposite sides of the box connector 1, so that the door body is more stable during opening and closing, and the possibility of shaking and deflection is reduced. In addition, the design of the two slide grooves 11 allows the buffer column 4 to be subjected to a more uniform force during the sliding process. When the door body is subjected to external forces, the two slide grooves 11 can share these forces together, avoiding damage or deformation caused by excessive force on a single slide groove 11, thereby improving the overall bearing capacity and durability of the hinge system.

[0046] The limit seat 6 and the mounting seat 7 of this embodiment can be detachably mounted on the box body connector 1. The detachable design allows the limit seat 6 and the mounting seat 7 to be easily removed or installed from the box body connector 1 as needed, which provides great convenience for the adjustment, upgrade or replacement of the door system. And because the limit seat 6 and the mounting seat 7 are both detachable, they can be inspected, cleaned or replaced separately during maintenance without large-scale disassembly of the entire door system.

[0047] In this embodiment, the box body connecting member 1 is provided with a plurality of first mounting holes 12 , and the door body connecting member 2 is provided with a plurality of second mounting holes 21 .

[0048] In the above technical solution, the design of multiple first mounting holes 12 and second mounting holes 21 provides higher flexibility for the installation of the refrigerator hinge system. According to the specific structure and installation requirements of the refrigerator box or refrigerator door, the appropriate mounting hole position can be selected for installation, thereby ensuring that the hinge system can be stably installed and meet the requirements of opening and closing the door. In addition, the design of multiple first mounting holes 12 or second mounting holes 21 enables the box connector 1 or door connector 2 to form a multi-point connection with the corresponding door or box, thereby greatly enhancing the stability of the connection, ensuring that the door can maintain stable operation during frequent opening and closing, and reducing failures and safety hazards caused by loose connections.

[0049] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A high-strength refrigerator hinge, comprising a box body connector and a door body connector rotatably connected via a hinge shaft, the door body connector is provided with a buffer column parallel to the hinge shaft, the box body connector is provided with a slide groove matching the trajectory of the buffer column when rotating, characterized in that: It also includes a push rod elastically clamped on the box body connecting piece, and a limit seat fixedly arranged on the box body connecting piece. The push rod can movably pass through the limit seat and one end of it abuts against the buffer column. Two groups of limit blocks are arranged on the push rod at intervals, and the limit seat is located between the two groups of limit blocks.

2. A high-strength refrigerator hinge according to claim 1, characterized in that: Each group of the limit blocks consists of two blocks which are arranged opposite to each other on the top rod. When the door body connecting member rotates, the two groups of the limit blocks can respectively abut against the upper end surface or the lower end surface of the limit seat.

3. The high-strength refrigerator hinge according to claim 1, characterized in that: The box body connector is also provided with a mounting seat, the push rod is provided with a clamping block and is sleeved with an elastic member, the end of the push rod away from the buffer column can movably pass through the mounting seat, and the elastic member is located between the limit block and the mounting seat.

4. The high-strength refrigerator hinge according to claim 3, characterized in that: Both ends of the elastic member are provided with connecting blocks, and the two connecting blocks can be respectively abutted against the clamping block and the mounting seat.

5. The high-strength refrigerator hinge according to claim 1, characterized in that: One end of the push rod close to the buffer column is movably connected to the buffer column through a bearing bush.

6. The high-strength refrigerator hinge according to claim 5, characterized in that: The bearing shell is a sheet structure with a "U"-shaped cross section. The bearing shell is sleeved on the outer periphery of the buffer column, and the push rod is provided with a groove for clamping the bearing shell.

7. The high-strength refrigerator hinge according to claim 1, characterized in that: There are two slide grooves, which are respectively arranged on opposite sides of the box connecting piece, and two ends of the buffer column are respectively clamped in the two slide grooves.

8. The high-strength refrigerator hinge according to claim 3, characterized in that: The limiting seat and the mounting seat can be detachably mounted on the box body connecting piece.

9. A high-strength refrigerator hinge according to any one of claims 1 to 8, characterized in that: The box connecting piece is provided with a plurality of first mounting holes.

10. A high-strength refrigerator hinge according to any one of claims 1 to 8, characterized in that: The door body connecting piece is provided with a plurality of second mounting holes.

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