A low temperature refrigerator hinge assembly

Abstract

A hinge assembly for a low-temperature refrigerator includes a hinge body with a hinge pin connected to it. A metal bushing is provided on the outer side of the hinge pin. A through hole is machined inside the hinge pin, and an upper end cap and a lower end cap are respectively connected to both ends of the through hole. A guide hole is machined in the middle of the upper end cap, and an adjusting post is disposed within the guide hole. A steel ball is connected to the upper end of the adjusting post. A first threaded hole is machined inside the lower end cap, and an adjusting screw is connected within the first threaded hole. A second threaded hole is machined at the threaded end of the adjusting screw, with the pitch of the second threaded hole being smaller than that of the first threaded hole. A threaded connecting post is machined at the lower end of the adjusting post, and the threaded connecting post connects to the second threaded hole. Compared with the prior art, this low-temperature refrigerator hinge assembly allows for vertical adjustment of the refrigerator door via the adjusting screw and adjusting post, ensuring a uniform distance between the upper and lower edges of the refrigerator door and the door frame.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a hinge assembly for a low-temperature refrigerator. Background Technology

[0002] The refrigerator door is installed on the refrigerator door frame by hinges. During installation, it is necessary to ensure that the distance between the top and bottom edges of the refrigerator door and the door frame is uniform. Some hinges cannot be adjusted after installation, resulting in uneven distance between the top and bottom edges of the refrigerator door and the door frame. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a low-temperature refrigerator hinge assembly to address the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A hinge assembly for a low-temperature refrigerator includes a hinge body with a hinge pin connected to it. A metal bushing is provided on the outer side of the hinge pin. A through hole is machined inside the hinge pin, and an upper plug seat and a lower plug seat are respectively connected to the two ends of the through hole. A guide hole is machined in the middle of the upper plug seat, and an adjusting post is provided inside the guide hole. A steel ball is connected to the upper end of the adjusting post. A first threaded hole is machined inside the lower plug seat, and an adjusting screw is connected inside the first threaded hole. A second threaded hole is machined at the threaded end of the adjusting screw, and the pitch of the second threaded hole is smaller than the pitch of the first threaded hole. A threaded connecting post is machined at the lower end of the adjusting post, and the threaded connecting post is connected to the second threaded hole.

[0006] Furthermore, the hinge body is formed by bending a sheet metal, and mounting holes are machined on the hinge body.

[0007] Furthermore, the hinge pin has a positioning step at its bottom and a positioning hole on its hinge body. The positioning step at the bottom of the hinge pin is inserted into the positioning hole of the hinge body and is fixedly connected to the hinge body by welding.

[0008] Furthermore, the upper and lower plug seats are chamfered around their perimeters, and the chamfered areas are connected to the hinge pins by welding.

[0009] Furthermore, the guide hole in the middle of the upper plug seat is an "arch" shaped hole, and the shape of the upper end of the adjusting column is adapted to the "arch" shaped hole.

[0010] Furthermore, the upper end of the adjusting column is machined with a "V" shaped groove, and the steel ball is placed in the "V" shaped groove.

[0011] Compared with the prior art, the low-temperature refrigerator hinge assembly of this utility model can realize the vertical adjustment of the refrigerator door by adjusting screws and adjusting columns, ensuring that the distance between the upper and lower edges of the refrigerator door and the door frame is uniform. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Among them, 1. hinge body, 2. hinge pin, 3. mounting hole, 4. positioning step, 5. metal bushing, 6. upper end cap, 7. lower end cap, 8. adjusting column, 9. steel ball, 10. "V" groove, 11. first threaded hole, 12. adjusting screw, 13. second threaded hole, 14. threaded connecting column. Detailed Implementation

[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0015] like Figure 1 As shown, a low-temperature refrigerator hinge assembly includes a hinge body 1 and a hinge pin 2 connected to the hinge body 1. In this embodiment, the hinge body 1 is formed by bending a sheet metal. The hinge body 1 includes a vertical bending edge and a horizontal bending edge. A mounting hole 3 is machined on the vertical bending edge of the hinge body 1, and a positioning hole is machined on the horizontal bending edge of the hinge body 1. A positioning step 4 is machined at the bottom of the hinge pin 2. The positioning step 4 at the bottom of the hinge pin 2 is inserted into the positioning hole of the hinge body 1. A chamfer is machined around the positioning step 4. The hinge pin is fixed to the hinge body 1 by welding at the chamfer.

[0016] A metal bushing 5 is provided on the outer side of the hinge pin 2. The metal bushing 5 can eliminate the gap in the hinge pin cavity and facilitate the rotation of the refrigerator door. A through hole is machined in the hinge pin 2. The two ends of the through hole are respectively connected to an upper end cap 6 and a lower end cap 7. The upper end cap 6 and the lower end cap 7 are chamfered around their perimeters and are connected to the hinge pin 2 by welding. A guide hole is machined in the middle of the upper end cap 6. An adjusting post 8 is provided in the guide hole. The adjusting post 8 passes through the guide hole and a steel ball 9 is connected to the upper end of the adjusting post 8. The steel ball 9 reduces the frictional resistance during the rotation of the refrigerator door. In this utility model, the guide hole in the middle of the upper end cap 6 is an "arch" shaped hole. The shape of the upper end of the adjusting post 8 is adapted to the "arch" shaped hole. A "V" shaped groove 10 is machined in the upper end of the adjusting post 8, and the steel ball 9 is placed in the "V" shaped groove 10.

[0017] The lower plug seat 7 has a first threaded hole 11 machined inside, and an adjusting screw 12 is connected inside the first threaded hole. The adjusting screw 12 includes a threaded end and a screwing end. The threaded end of the adjusting screw 12 has a second threaded hole 13 machined inside. The lower end of the adjusting column 8 has a threaded connecting column 14 machined inside, and the threaded connecting column 14 is connected to the second threaded hole 13.

[0018] The pitch of the second threaded hole 13 is smaller than that of the first threaded hole 11. For example, if the pitch of the first threaded hole 11 is 1mm and the pitch of the second threaded hole is 0.7mm, when the adjusting screw 12 is turned one turn, the adjusting screw 12 pushes the adjusting column forward by 1mm, and at the same time the adjusting column retracts by 0.7mm. The adjusting column 8 extends upward by 0.3mm as a whole, thus achieving fine adjustment of the refrigerator door.

[0019] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. A hinge assembly for a low-temperature refrigerator, characterized in that: The device includes a hinge body with a hinge pin connected to it. A metal bushing is provided on the outer side of the hinge pin. A through hole is machined inside the hinge pin, and an upper plug seat and a lower plug seat are respectively connected to the two ends of the through hole. A guide hole is machined in the middle of the upper plug seat, and an adjusting post is provided in the guide hole. A steel ball is connected to the upper end of the adjusting post. A first threaded hole is machined inside the lower plug seat, and an adjusting screw is connected to the first threaded hole. A second threaded hole is machined at the threaded end of the adjusting screw, and the pitch of the second threaded hole is smaller than the pitch of the first threaded hole. A threaded connecting post is machined at the lower end of the adjusting post, and the threaded connecting post is connected to the second threaded hole.

2. The low-temperature refrigerator hinge assembly according to claim 1, characterized in that: The hinge body is formed by bending a sheet metal, and mounting holes are machined on the hinge body.

3. A low-temperature refrigerator hinge assembly according to claim 1, characterized in that: The hinge pin has a positioning step at its bottom and a positioning hole on its hinge body. The positioning step at the bottom of the hinge pin is inserted into the positioning hole of the hinge body and is fixedly connected to the hinge body by welding.

4. A low-temperature refrigerator hinge assembly according to claim 1, characterized in that: The upper and lower plug seats are chamfered around their perimeters, and the chamfered areas are connected to the hinge pins by welding.

5. A low-temperature refrigerator hinge assembly according to claim 1, characterized in that: The guide hole in the middle of the upper plug seat is an "arch" shaped hole, and the shape of the upper end of the adjusting column is adapted to the "arch" shaped hole.

6. A low-temperature refrigerator hinge assembly according to claim 1, characterized in that: The upper end of the adjusting column is machined with a "V" shaped groove, and the steel ball is placed in the "V" shaped groove.

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