High-strength refrigerator hinge

Abstract

The utility model 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 bases 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 bases firstly, the buffer columns can be effectively prevented from colliding with the two ends of the sliding groove, and the refrigerator door body is prevented from being damaged. Therefore, the strength of the hinge can be effectively improved, and the service life of the hinge can be effectively prolonged.

Description

Technical Field

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

[0002] The opening and closing of the freezer door body needs to be realized through a hinge assembly. The hinge assembly is usually composed of two simple connecting blocks hinged and matched with a guide groove, and the structure is simple. When using this kind of hinged assembly, when the freezer door body is fully closed or fully opened, it often causes a large impact force on both ends of the chute. The wall thickness at both ends of the chute is relatively thin and usually weak, so it lacks impact resistance. As a result, the structure stability of the freezer door body will be affected due to frequent impacts on both ends of the chute after long-term use, which will not only reduce the service life of the freezer, but also affect the use safety of the freezer. Summary of the Utility Model

[0003] In view of this, in order to solve the above technical problems, the utility model provides a high-strength freezer hinge that can avoid direct and severe impacts on the chute and cause its damage.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A high-strength freezer hinge, comprising a box body connecting piece and a door body connecting piece rotatably connected through a hinge shaft. A buffer column parallel to the hinge shaft is arranged on the door body connecting piece. A chute matching the trajectory of the buffer column during rotation is arranged on the box body connecting piece. It is characterized in that it further comprises a ejector rod elastically clamped on the box body connecting piece and a limit seat fixedly arranged on the box body connecting piece. The ejector rod can movably pass through the limit seat and one end thereof abuts against the buffer column. Two groups of limit blocks are arranged at intervals on the ejector rod. The limit seat is located between the two groups of limit blocks.

[0006] In the above technical solution, when the freezer hinge assembly is in use, the door body connecting piece can be connected to the freezer door body, and the box body connecting piece can be connected to the freezer box body. During the closing or opening process of the freezer door body, under the elastic force of the ejector rod, the buffer column slides smoothly in the chute, effectively absorbing the impact force generated when the door body rotates, reducing the instantaneous stress directly acting on the hinge shaft and the connecting piece, and thus greatly prolonging the service life of the hinge and the overall freezer.

[0007] In addition, two sets of limit blocks provided on the ejector rod cooperate with the limit seats on the cabinet body connecting piece, so that when the cold cabinet door is opened or closed, the limit blocks can first abut against the limit seats, effectively avoiding the buffer column hitting the two ends of the sliding groove, that is, converting the impact of the buffer column on the end of the sliding groove into the impact of the limit block on the limit seat. In this way, the impact on the weak part of the hinge when the cold cabinet door is opened and closed can be avoided, thereby improving the strength and service life of the hinge. Moreover, the opening and closing angle of the door body can also be controlled by controlling the distance between the two sets of limit blocks, making the use more flexible.

[0008] Further, each set of the limit blocks are two oppositely arranged on the ejector rod. When the door body connecting piece rotates, the two sets of 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 the two sets of limit blocks effectively limits the opening and closing range of the door body, ensures that the door body can reach the predetermined position every time it is opened or closed, prevents the door body from being damaged due to excessive opening or closing, and enhances 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 received by the limit block to further improve the strength of the hinge.

[0010] Further, an installation seat is also provided on the cabinet body connecting piece. A clamping block is provided on the ejector rod and an elastic member is sleeved thereon. One end of the ejector rod away from the buffer column can movably pass through the installation seat, and the elastic member is located between the limit block and the installation seat.

[0011] In the above technical solution, the setting of the ejector rod and the elastic member can realize the buffering function of the hinge. When the door body is closed, the ejector rod is under pressure to push the limit block to compress the elastic member, and the elastic member can absorb and disperse the impact force, thereby protecting the hinge system and the cold cabinet 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 existence of the elastic member, when the door body is completely closed, the elastic member can provide an additional pressure to make the contact between the door body and the cabinet body closer, thereby improving the sealing performance of the cold cabinet.

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

[0013] In the above technical solution, the setting of the connection blocks enables the elastic member to be more stably abutted against the clamping block and the installation seat, making its contact area with the clamping block or the installation seat larger, effectively exerting its elastic effect, and effectively avoiding the situation of the elastic member falling off or shifting during long-term use or under the action of a large external force, enhancing the firmness and reliability of the connection.

[0014] Further, one end of the ejector rod close to the buffer column is movably connected to the buffer column through a bearing shell.

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

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

[0017] In the above technical solution, the bearing shell designed with a "U"-shaped structure fully considers the lubrication requirements of the hinge, facilitating the addition of lubricating oil or grease inside it to further reduce friction and wear. In addition, this structure can closely fit on the outer periphery of the buffer column to form a stable support structure, and can be easily sleeved on the buffer column without complex installation steps or tools.

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

[0019] In the above technical solution, by arranging the sliding grooves on opposite sides of the box body connecting piece, a symmetrical structural layout is formed, making the door body more stable during the opening and closing processes, reducing the possibility of shaking and skewing. In addition, the design of the two sliding grooves enables the buffer column to be subjected to a more uniform force during the sliding process. When the door body is subjected to an external force, the two sliding grooves can share these forces together, avoiding damage or deformation caused by excessive force on a single sliding groove, thereby improving the overall load-bearing capacity and durability of the hinge system.

[0020] Further, the limit seat and the mounting seat are both detachably mounted on the box body connecting piece.

[0021] In the above technical solution, the detachable design enables the limit seat and the mounting seat to be easily removed from or mounted on the box body connecting piece as needed, which provides great convenience for the adjustment, upgrade or replacement of the door body system. And since both the limit seat and the mounting seat are detachable, they can be inspected, cleaned or replaced separately during maintenance without the need for large-scale disassembly of the entire door body system.

[0022] Further, the box body 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 freezer hinge system. According to the specific structure and installation requirements of the freezer cabinet body, the appropriate mounting hole positions can be selected for installation, so as to ensure that the hinge system can be firmly fixed on the cabinet body and meet the opening and closing requirements of the door body.

[0024] Further, a plurality of second mounting holes are provided on the door body connecting member.

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

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

[0027] Figure 2 FIG. 2 is another overall structural schematic diagram of an embodiment of the present invention.

[0028] Figure 3 FIG. 3 is the overall structural change state diagram of an embodiment of the present invention.

[0029] Reference numerals: 1 - cabinet body connecting member; 11 - chute; 12 - first mounting hole; 2 - door body connecting member; 21 - second mounting hole; 3 - hinge shaft; 4 - buffer column; 5 - ejector rod; 51 - limit block; 52 - clamping block; 6 - limit seat; 7 - mounting seat; 8 - elastic member; 81 - connecting block; 9 - bearing bush. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

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

[0032] A high-strength freezer hinge, comprising a cabinet connecting member 1 and a door connecting member 2 rotatably connected by a hinge shaft 3. A buffer post 4 parallel to the hinge shaft 3 is provided on the door connecting member 2, and a sliding groove 11 matching the trajectory of the buffer post 4 during rotation is provided on the cabinet connecting member 1. It is characterized in that it further includes a ejector rod 5 elastically clamped on the cabinet connecting member 1 and a limit seat 6 fixedly arranged on the cabinet connecting member 1. The ejector rod 5 movably passes through the limit seat 6 and one end thereof abuts against the buffer post 4. Two groups of limit blocks 51 are spaced on the ejector rod 5, and the limit seat 6 is located between the two groups of limit blocks 51. Wherein, both the cabinet connecting member 1 and the door connecting member 2 are plate structures integrally shaped like a "U", and the door connecting member 2 can be clamped on the cabinet connecting member 1, so that the connection between the two can be facilitated. The buffer post 4 is located below the hinge shaft 3, and there is a certain distance between the buffer post 4 and the hinge shaft 3. The buffer post 4 can swing around the hinge shaft 3 and its swinging trajectory matches the sliding groove 11. In addition, the interval between the two groups of limit blocks 51 matches the maximum swing angle of the door connecting member 2, that is, when the door connecting member 2 rotates to the maximum angle, the two groups of limit blocks 51 respectively abut against the limit seat 6.

[0033] When the freezer hinge assembly of this embodiment is in use, the door connecting member 2 can be connected to the freezer door body, and the cabinet connecting member 1 can be connected to the freezer cabinet body. During the closing or opening process of the freezer door body, under the elastic force of the ejector rod 5, the buffer post 4 slides smoothly in the sliding groove 11, thereby effectively absorbing the impact force generated when the door body rotates, reducing the instantaneous stress directly acting on the hinge shaft 3 and the connecting members, and thus greatly extending the service life of the hinge and the overall freezer.

[0034] In addition, the two groups of limit blocks 51 provided on the ejector rod 5 cooperate with the limit seat 6 on the cabinet connecting member 1, so that when the freezer door body is opened or closed, the limit blocks 51 can first abut against the limit seat 6, which can effectively prevent the buffer post 4 from hitting both ends of the sliding groove 11, that is, convert the impact of the buffer post 4 on the end of the sliding groove 11 into the impact of the limit blocks 51 on the limit seat 6. In this way, it can prevent the freezer door body from hitting the weak parts of the hinge when opening and closing, thereby improving the strength and service life of the hinge. And the opening and closing angle of the door body can also be controlled by controlling the distance between the two groups of limit blocks 51, making it more flexible to use.

[0035] In this embodiment, each group of limit blocks 51 is two oppositely arranged on the ejector rod 5. When the door 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. Wherein, when the freezer door body is closed, one group of limit blocks 51 abuts against the lower end surface of the limit seat 6, and when the door body is opened, the other group of limit blocks 51 abuts against the upper end surface of the limit seat 6.

[0036] The setting of the two groups of limit blocks 51 in this embodiment effectively limits the opening and closing range of the door body, ensuring that the door body can reach the predetermined position every time it is opened or closed, preventing damage to the door body caused by excessive opening or closing, and enhancing the stability and safety of the entire door system. Each group of limit blocks 51 consists of 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 and further improving the strength of the hinge.

[0037] In this embodiment, the box body connecting piece 1 is also provided with a mounting seat 7. The ejector rod 5 is provided with a clamping block 52 and sleeved with an elastic member 8. One end of the ejector rod 5 far 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 ejector rod 5 are integrally formed structures. 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 body connecting piece 1 and the entire door system during the opening or closing process, reduces the wear and noise of mechanical components, and improves the comfort and durability of use.

[0038] The setting of the ejector rod 5 and the elastic member 8 can also achieve the buffering function of the hinge. When the door body is closed, the ejector rod 5 is subjected to pressure to push the limit block 51 to compress the elastic member 8, and the elastic member 8 can absorb and disperse the impact force, thereby protecting the hinge system and the freezer box 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 existence of the elastic member 8, when the door body is completely closed, the elastic member 8 can provide an additional pressure to make the door body and the box body form a closer contact, thereby improving the sealing performance of the freezer.

[0039] In this embodiment, connection blocks 81 are provided at both ends of the elastic member 8, and the two connection blocks 81 can respectively abut against the clamping block 52 and the mounting seat 7. The connection block 81 is in a sheet-like structure, which is used to support the elastic member 8, so that the elastic member 8 can be more stably abutted against the clamping block 52 and the mounting seat 7, making its contact area with the clamping block 52 or the mounting seat 7 larger, effectively exerting its elastic effect, and effectively avoiding the situation that the elastic member 8 falls off or shifts during long-term use or under the action of a large external force, enhancing the stability and reliability of the connection.

[0040] In this embodiment, one end of the ejector 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 ejector rod 5 are all independent movable structures and cooperate with each other.

[0041] Among them, the bearing shell 9 serves as the contact component between the ejector rod 5 and the buffer column 4. Its smooth surface can significantly reduce the friction coefficient between the two, thereby reducing the frictional force and wear generated during the opening or closing process of the door body. This not only extends the service life of the ejector 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 shell 9 can be easily maintained and replaced. When the bearing shell 9 is worn or damaged due to long-term use, it can be simply removed from the ejector rod 5 and the buffer column 4 and replaced with a new one, without the need for large-scale disassembly of the entire door body structure.

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

[0043] The bearing shell 9 with a "U"-shaped structure design fully considers the lubrication requirements of the hinge, facilitating the addition of lubricating oil or grease inside it to further reduce friction and wear. In addition, this structure can closely fit on the outer periphery of the buffer column 4 to form a stable support structure and can be easily sleeved on the buffer column 4 without complex installation steps or tools.

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

[0045] In this embodiment, by arranging the sliding grooves 11 on the opposite sides of the box body connector 1, a symmetrical structural layout is formed, making the door body more stable during the opening and closing processes and reducing the possibility of shaking and skewing. In addition, the design of the two sliding grooves 11 enables the buffer column 4 to be subjected to a more uniform force during the sliding process. When an external force acts on the door body, the two sliding grooves 11 can share these forces together, avoiding damage or deformation caused by excessive force on a single sliding groove 11, thereby improving the overall load-bearing capacity and durability of the hinge system.

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

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

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

[0049] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 cannot be construed as a limitation to the present utility model.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0051] Although the description of the present utility model is made in combination with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. A high-strength freezer hinge, comprising a box body connecting piece and a door body connecting piece rotatably connected by a hinge shaft, wherein a buffer column parallel to the hinge shaft is provided on the door body connecting piece, and a chute matching the trajectory of the buffer column during rotation is provided on the box body connecting piece, and it is characterized in that, It further includes a top rod elastically clamped on the box body connecting piece, and a limit seat fixedly arranged on the box body connecting piece. The top 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 at intervals on the top rod, and the limit seat is located between the two groups of limit blocks.

2. The high-strength freezer hinge according to claim 1, wherein Each group of the limit blocks are two oppositely arranged on the top rod. When the door body connecting piece rotates, the two groups of limit blocks can respectively abut against the upper end face or the lower end face of the limit seat.

3. The high-strength freezer hinge according to claim 1, characterized in that, An installation seat is further arranged on the box body connecting piece. A clamping block is arranged on the top rod and an elastic member is sleeved on it. One end of the top rod far away from the buffer column can movably pass through the installation seat, and the elastic member is located between the limit block and the installation seat.

4. The high-strength freezer hinge according to claim 3, wherein Connection blocks are arranged at both ends of the elastic member, and the two connection blocks can respectively abut against the clamping block and the installation seat.

5. A high-strength freezer hinge according to claim 1, characterized in that, One end of the top 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, wherein, The bearing bush is a sheet-like structure with a "U"-shaped cross section. The bearing bush is sleeved on the outer periphery of the buffer column, and the top rod is provided with a groove for clamping the bearing bush.

7. The high-strength freezer hinge according to claim 1, wherein, There are two sliding grooves, and the two sliding grooves are respectively arranged on the opposite sides of the box body connecting piece. The two ends of the buffer column are respectively clamped in the two sliding grooves.

8. The high-strength freezer hinge according to claim 3, characterized in that, Both the limit seat and the installation seat are detachably installed on the box body connecting piece.

9. A high-strength freezer hinge according to any one of claims 1-8, characterized in that, A plurality of first mounting holes are arranged on the box body connecting piece.

10. A high-strength refrigerator hinge according to any one of claims 1-8, characterized in that, A plurality of second mounting holes are arranged on the door body connecting piece.

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