Door hinge structure

Abstract

The utility model discloses a door hinge structure, which relates to the technical field of cabinet door hinges and comprises a hinge body, a hinge shaft is movably mounted in the hinge body, a connecting shaft is movably mounted at the top end of the hinge shaft, an adjusting bolt is mounted in the connecting shaft in a matched manner, and the adjusting bolt is rotatably mounted on the hinge shaft. According to the design scheme, through the design that the connecting shaft is movably installed at the top end of the hinge shaft, when a cabinet door is installed, installation personnel rotate the adjusting bolt through tools such as a wrench, the connecting shaft slides on the hinge shaft under the action of the adjusting bolt, and therefore the extending length of the connecting shaft on the hinge shaft is adjusted; and the length of the connecting shaft can be freely adjusted so as to adapt to sheet metal parts at different positions, and installation work of the cabinet door is facilitated.

Description

Technical Field

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

[0002] Automatic door hinges, which can automatically close cabinet doors, are widely used in freezers, refrigerators, blast freezers, and disinfection cabinets. In existing technology, automatic door hinges are typically installed on the cabinet door, with sheet metal parts on the cabinet body that connect to the hinges. The door is installed by inserting the hinge's pivot into the sheet metal part. However, the pivot length of existing automatic door hinges is fixed. When the distance between the sheet metal part and the cabinet door is too large, the hinge cannot be inserted into the part, affecting the normal installation of the door. To solve this problem, existing technology usually allows for a longer hinge length; however, an excessively long pivot can cause interference between the pivot and the cabinet body, further complicating door installation. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, this utility model provides a door hinge structure.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a door hinge structure, including a hinge body, a hinge shaft is movably installed inside the hinge body, a connecting shaft is movably installed at the top of the hinge shaft, an adjusting bolt is fitted inside the connecting shaft, and the adjusting bolt is rotatably installed on the hinge shaft.

[0005] Furthermore, the hinge body has an internal mounting cavity, the hinge shaft is rotatably mounted on the top of the mounting cavity, the top center of the hinge shaft has a mounting hole, the connecting shaft is fitted into the mounting hole, the side wall of the mounting hole has a number of limiting strips, and the outer side wall of the connecting shaft has a limiting through groove that matches the limiting strips.

[0006] Furthermore, the bottom end of the hinge shaft is provided with a mounting groove, and the bottom end of the adjusting bolt is provided with a frustum that matches the mounting groove. The frustum is rotatably installed in the mounting groove, and a limit screw is installed at the end of the mounting groove.

[0007] Furthermore, the mounting groove is connected to the mounting hole, the threaded end of the adjusting bolt extends into the mounting hole, the top of the adjusting bolt is provided with a hexagonal groove, and the axis of the connecting shaft is provided with a threaded hole that matches the adjusting bolt.

[0008] Furthermore, the top end of the connecting shaft is provided with a connecting part, the cross-section of the connecting part is a rectangular structure, and the top end of the connecting shaft is provided with a through hole, the through hole is connected to the threaded hole, and the diameter of the through hole is larger than the diameter of the threaded hole.

[0009] The beneficial effect of this utility model is that, through the design of a connecting shaft movably installed at the top of the hinge shaft, when installing the cabinet door, the installer can use tools such as a wrench to rotate the adjusting bolt, and under the action of the adjusting bolt, the connecting shaft slides on the hinge shaft, thereby adjusting the extension length of the connecting shaft on the hinge shaft. This allows for free adjustment of the length of the connecting shaft to suit sheet metal parts in different positions, which is beneficial to the installation of the cabinet door. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is the front view of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0015] Figure 5 This is an exploded view of the hinge shaft and connecting shaft of this utility model;

[0016] Figure 6 This is a schematic diagram of the hinge shaft of this utility model.

[0017] In the diagram: 1. Hinge body, 11. Mounting cavity, 2. Hinge shaft, 21. Mounting hole, 22. Limiting strip, 23. Mounting groove, 3. Connecting shaft, 31. Limiting through groove, 32. Threaded hole, 33. Connecting part, 34. Through hole, 4. Adjusting bolt, 41. Frustum, 42. Hexagonal groove, 5. Limiting screw. Detailed Implementation

[0018] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0019] according to Figure 1-6 As shown, a door hinge structure includes a hinge body 1, a hinge shaft 2 is movably installed inside the hinge body 1, a connecting shaft 3 is movably installed at the top of the hinge shaft 2, and an adjusting bolt 4 is fitted inside the connecting shaft 3. The adjusting bolt 4 is rotatably installed on the hinge shaft 2.

[0020] In this embodiment, the hinge body 1 has an internal mounting cavity 11. The hinge shaft 2 is rotatably mounted on the top of the mounting cavity 11. A mounting hole 21 is opened at the center of the top of the hinge shaft 2. The connecting shaft 3 is fitted into the mounting hole 21. Several sets of limiting strips 22 are provided on the side wall of the mounting hole 21. A limiting through groove 31 matching the limiting strip 22 is opened on the outer side wall of the connecting shaft 3. The limiting through groove 31 of the connecting shaft 3 is inserted into the limiting strip 22. The connecting shaft 3 is slidably mounted in the mounting hole 21 through the cooperation of the limiting through groove 31 and the limiting strip 22.

[0021] In this embodiment, the bottom end of the hinge shaft 2 is provided with a mounting groove 23, and the bottom end of the adjusting bolt 4 is provided with a frustum 41 that matches the mounting groove 23. The frustum 41 is rotatably installed in the mounting groove 23. The end of the mounting groove 23 is fitted with a limit screw 5 through a threaded connection. The limit screw 5 limits the adjusting bolt 4 to prevent the adjusting bolt 4 from coming off the hinge shaft 2.

[0022] In this embodiment, the mounting groove 23 is connected to the mounting hole 21. The threaded end of the adjusting bolt 4 extends into the mounting hole 21. The top of the adjusting bolt 4 has a hexagonal groove 42. The axis of the connecting shaft 3 has a threaded hole 32 that matches the adjusting bolt 4. The top of the connecting shaft 3 has a connecting part 33. The cross-section of the connecting part 33 is rectangular. The top of the connecting shaft 3 has a through hole 34. The through hole 34 is connected to the threaded hole 32. The diameter of the through hole 34 is larger than the diameter of the threaded hole 32. When the connecting shaft 3 is installed on the hinge shaft 2, the adjusting bolt 4 and the threaded hole 32 are connected together. The installer inserts tools such as an Allen wrench through the through hole 34 and into the hexagonal groove 42, so that the adjusting bolt 4 can be rotated by the tool. With the cooperation of the adjusting bolt 4 and the threaded hole 32, the extension length of the connecting shaft 3 on the hinge shaft 2 can be adjusted.

[0023] When using this utility model, the installer uses an Allen wrench to rotate the adjusting bolt 4 according to the position of the sheet metal part. With the cooperation of the adjusting bolt 4 and the threaded hole 32, the connecting shaft 3 slides along the limit strip 22 on the hinge shaft 2, thereby adjusting the extension length of the connecting shaft 3 on the hinge shaft 2. This allows for free adjustment of the length of the connecting shaft 2 to suit sheet metal parts in different positions, which is beneficial for the installation of cabinet doors.

[0024] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A door hinge construction comprising a hinge body (1), characterized in that: The inside of the hinge body (1) is movably mounted with a hinge shaft (2), the top end of the hinge shaft (2) is movably mounted with a connecting shaft (3), the shaft center of the connecting shaft (3) is provided with a threaded hole (32) matched with an adjusting bolt (4), the connecting shaft (3) is movably mounted with the adjusting bolt (4), and the adjusting bolt (4) is rotatably mounted on the hinge shaft (2).

2. A door hinge structure according to claim 1, wherein The inside of the hinge body (1) is movably mounted with a hinge shaft (2), the top end of the hinge shaft (2) is movably mounted with a connecting shaft (3), the shaft center of the connecting shaft (3) is provided with a threaded hole (32) matched with an adjusting bolt (4), the connecting shaft (3) is movably mounted with the adjusting bolt (4), and the adjusting bolt (4) is rotatably mounted on the hinge shaft (2).

3. A door hinge structure according to claim 2, wherein The bottom end of the hinge shaft (2) is provided with a mounting groove (23), the bottom end of the adjusting bolt (4) is provided with a circular table (41) matched with the mounting groove (23), the circular table (41) is rotatably mounted in the mounting groove (23), and the end of the mounting groove (23) is movably mounted with a limiting screw (5).

4. A door hinge structure according to claim 3, wherein The mounting groove (23) is communicated with the mounting hole (21), the threaded end of the adjusting bolt (4) extends into the mounting hole (21), the top end of the adjusting bolt (4) is provided with a hexagonal groove (42).

5. A door hinge structure according to claim 4, wherein The top end of the connecting shaft (3) is provided with a connecting part (33), the cross section of the connecting part (33) is a rectangular structure, the top end of the connecting shaft (3) is provided with a through hole (34), the through hole (34) is communicated with the threaded hole (32), and the diameter of the through hole (34) is greater than that of the threaded hole (32).

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