Single-degree-of-freedom freezer hinge structure

Abstract

The utility model relates to a single-degree-of-freedom freezer hinge structure and belongs to the technical field of freezer hinges, the single-degree-of-freedom freezer hinge structure comprises an upper body and a lower body, rotating shafts are fixed to the front wall and the rear wall of the inner side of the lower body, an elastic structure is arranged on the inner side of the lower body, and a pushing structure used for extruding the elastic structure is arranged at the top end of the elastic structure; the pushing structure comprises two short rods, two push rods, two first round holes, two second round holes, cross rods, check blocks fixedly installed on the opposite sides of the two cross rods, pressing blocks fixedly installed at the front ends and the rear ends of the cross rods, and sliding blocks fixedly installed at the front ends and the rear ends of the pressing blocks. According to the single-degree-of-freedom freezer hinge structure, the length of the upper body can be shortened, the end, away from a freezer, of the upper body is located on the inner side of the lower body all the time when the upper body is turned over, a protruding block does not need to be arranged at the lower end of the upper body, and the elastic structure can be squeezed, so that the space occupied by the hinge can be further reduced; and the damage rate of the hinge to the wall surface can be reduced.

Description

Technical Field

[0001] This application relates to the field of freezer hinge technology, specifically a single-degree-of-freedom freezer hinge structure. Background Technology

[0002] As the economy grows and people's living standards improve, they have higher and higher requirements for the various performance aspects of freezers. They also have higher requirements for the opening and closing range of freezer doors and their stability, as well as the size and aesthetics of the hinges.

[0003] Typically, freezer hinges have a support rod that moves up and down while also swinging around a specific axis. This type of hinge requires sufficient space to accommodate the rod's swing range, resulting in a relatively large hinge thickness. Since the hinge is installed on the rear of the freezer and protrudes from the body, its large thickness has the following disadvantages: poor appearance; large space occupation, as the hinge protrudes too high from the freezer's outer surface, taking up space for placement, storage, and transportation, increasing logistics costs. Chinese patent (publication number: CN211818846U) discloses a freezer hinge with a single-degree-of-freedom support rod. Through key components such as the upper body, lower body, connecting plate, rotating shaft, bearing, limiting hole, support shaft, limiting protrusion, support rod, and spring, the hinge's degree of freedom can be restricted, greatly simplifying the hinge structure, reducing its thickness, improving overall aesthetics, and simultaneously lowering storage and transportation costs.

[0004] However, after the upper and lower parts of the above document are folded and flipped, two protruding ends will be generated at the end of the upper part that is away from the freezer. Since the freezer is usually placed against the wall, the two protruding ends of the upper part are prone to damage to the wall when the freezer is opened and closed for a long time. In addition, the freezer will also take up a certain amount of space during transportation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a single-degree-of-freedom freezer hinge structure, which has advantages such as being less prone to protruding ends, thus solving the problem of protruding ends.

[0006] To achieve the above objectives, this application provides the following technical solution: a single-degree-of-freedom freezer hinge structure, comprising an upper body and a lower body, wherein the front and rear walls of the lower body are fixed with pivots, the inner side of the lower body is provided with an elastic structure, and the top of the elastic structure is provided with a pushing structure for squeezing the elastic structure;

[0007] The pushing structure includes two short rods, two push rods, two first circular holes, two second circular holes, a crossbar, a stop block fixedly installed on one side of the two crossbars, a pressure block fixedly installed at the front and rear ends of the crossbars, and a slider fixedly installed at the front and rear ends of the pressure block.

[0008] By adopting the above technical solution, the length of the upper body can be shortened, so that when the upper body is flipped, the end away from the freezer is always inside the lower body. Furthermore, there is no need for protrusions at the lower end of the upper body, which can also exert a squeezing effect on the elastic structure, thereby further reducing the space occupied by the hinge and also reducing the rate of damage to the wall caused by the hinge.

[0009] Furthermore, the opposite ends of the two short rods are respectively fixed to the front and rear walls of the upper body.

[0010] By adopting the above technical solution, the upper body can drive the short rod to perform circular motion.

[0011] Furthermore, the two first circular holes are respectively opened at the upper ends of the two push rods on opposite sides, and the short rod is rotatably connected to the inside of the first circular holes.

[0012] By adopting the above technical solution, when the upper body drives the short rod to perform circular motion, the push rod can rotate on the outer surface of the short rod, so that the short rod can pull the push rod to gradually move from a slightly tilted position to an inclined position.

[0013] Furthermore, the two second circular holes are respectively opened at the lower ends of the two push rods on opposite sides, and the crossbar is rotatably connected to the inside of the two second circular holes.

[0014] By adopting the above technical solution, when the short rod pulls the push rod to move, the push rod rotates on the outer surface of the crossbar, thereby allowing the short rod to pull the crossbar upward through the push rod. Furthermore, the two short rods and the crossbar can be connected together through two push rods, which facilitates pushing or pulling the pressure block to move up and down on the inner side of the lower body.

[0015] Furthermore, elongated holes are provided on both the front and rear walls of the lower body, and the slider is slidably connected to the interior of the elongated holes.

[0016] Using the above technical solution, the pressure block can be engaged with the inside of the lower body by two sliders, and can also move up and down on the inside of the lower body, so that the pressure block can move up and down stably on the inside of the lower body, which facilitates the pressure block to squeeze the elastic structure.

[0017] Furthermore, the elastic structure includes three pressure rods, three springs, a cross plate, and a sleeve rod fixedly installed at the lower end of the pressure rods.

[0018] By adopting the above technical solution, the hinge composed of the upper and lower parts can be used to control the opening and closing, and the freezer door can be made more stable during the opening and closing process, which can reduce wear and tear on other rooms.

[0019] Furthermore, the top ends of the three pressure rods are all fixed to the lower end of the pressure block, the three springs are respectively sleeved on the outer surface of the three sleeve rods, and the front and rear ends of the horizontal plate are fixed to the front and rear walls of the lower body.

[0020] By adopting the above technical solution, the pressure block also squeezes the three pressure rods when it moves downward, so that the three pressure rods cooperate with the horizontal plate to squeeze the three springs at the same time.

[0021] Furthermore, the upper body has rotating holes on both the front and rear walls, and the rotating shaft is rotatably connected to the inside of the two rotating holes.

[0022] By adopting the above technical solution, the rotating shaft can be connected to the upper body through the rotating hole, so that the upper body and the lower body can be rotatably connected together.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This single-degree-of-freedom freezer hinge structure can shorten the length of the upper body, so that when the upper body is flipped, the end away from the freezer is always inside the lower body. Furthermore, there is no need for a protrusion at the lower end of the upper body, which can also exert a squeezing effect on the elastic structure, thereby further reducing the space occupied by the hinge and also reducing the rate of damage to the wall caused by the hinge. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the elastic structure and the lower body of this application;

[0027] Figure 3 This is a schematic diagram of the push rod and short rod of this application.

[0028] In the diagram: 1. Upper body; 2. Lower body; 3. Rotating shaft; 4. Rotating hole; 41. Short rod; 42. Stop block; 43. Push rod; 44. First round hole; 45. Second round hole; 46. Crossbar; 47. Pressure block; 48. Sliding block; 49. Pressure rod; 410. Sleeve rod; 411. Spring; 412. Horizontal plate. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Please see Figures 1 to 2The single-degree-of-freedom refrigerator hinge structure in this embodiment includes an upper body 1 and a lower body 2. The front and rear walls of the inner side of the lower body 2 are fixed with a pivot 3. The inner side of the lower body 2 is provided with an elastic structure. The top of the elastic structure is provided with a pushing structure for squeezing the elastic structure.

[0031] Furthermore, the upper body 1 has rotating holes 4 on both the front and rear walls, and the rotating shaft 3 is rotatably connected to the two rotating holes 4. The upper body 1 can rotate on the outer surface of the rotating shaft 3 through the two rotating holes 4, so that the upper body 1 can be connected to the lower body 2 while the upper body 1 can also be flipped and rotated.

[0032] Please see Figures 1 to 3 The pushing structure in this embodiment includes two short rods 41, two push rods 43, two first round holes 44, two second round holes 45, a crossbar 46, a stop block 42 fixedly installed on one side of the two crossbars 46, a pressure block 47 fixedly installed at the front and rear ends of the crossbar 46, and a slider 48 fixedly installed at the front and rear ends of the pressure block 47.

[0033] Among them, the two short rods 41 are fixed at opposite ends to the front and rear walls of the inner side of the upper body 1, so that the push rod 43 can be connected to the upper body 1 through the short rods 41.

[0034] Furthermore, two first circular holes 44 are respectively opened at the upper ends of the two push rods 43 on opposite sides. The short rod 41 is rotatably connected to the inside of the first circular hole 44, so that the push rod 43 can rotate on the outer surface of the short rod 41 through the first circular hole 44, so that the push rod 43 can be connected to the short rod 41, and the two push rods 43 can be indirectly connected to the upper body 1.

[0035] Furthermore, two second circular holes 45 are respectively opened at the lower ends of the two push rods 43 on opposite sides. The crossbar 46 is rotatably connected to the inside of the two second circular holes 45, so that the push rods 43 can rotate on the outer surface of the crossbar 46 through the second circular holes 45. This allows the two push rods 43 to be indirectly connected to the lower body 2 through the crossbar 46. The two stops 42 can effectively prevent the push rods 43 from falling off the outer surface of the short rod 41, and can also limit the push rods 43 to a certain extent, reducing the phenomenon of the push rods 43 sliding on the outer surface of the crossbar 46.

[0036] In addition, elongated holes are provided on both the front and rear walls of the lower body 2. The slider 48 is slidably connected to the inside of the elongated hole, making the pressure block 47 concave, so that it can be easily fixedly connected with the two sliders 48 and the crossbar 46. The pressure block 47 can be locked to the inside of the lower body 2 through the two sliders 48, and can also move up and down on the inside of the lower body 2.

[0037] Please see Figure 2The elastic structure in this embodiment includes three pressure rods 49, three springs 411, a horizontal plate 412, and a sleeve rod 410 fixedly installed at the lower end of the pressure rods 49.

[0038] Secondly, the top ends of the three pressure rods 49 are all fixed to the lower end of the pressure block 47, and the three springs 411 are respectively sleeved on the outer surface of the three sleeve rods 410. The front and rear ends of the horizontal plate 412 are fixed to the front and rear walls of the inner side of the lower body 2, so that the three pressure rods 49 can cooperate with the horizontal plate 412 to compress the three springs 411. Furthermore, the lower end of the horizontal plate 412 is provided with three through holes for the three sleeve rods 410 to pass through its interior. When the pressure rods 49 compress the springs 411, the pressure rods 49 can push the sleeve rods 410 downward to leave sufficient space for the sleeve rods 410.

[0039] The working principle of the above embodiments is as follows:

[0040] During use, as the upper body 1 and lower body 2 gradually flip into an L-shape, the flipping of the upper body 1 causes the two short rods 41 to rotate, moving them to the right. This allows the push rod 43 to rotate on the outer surface of the short rods 41, and simultaneously, the push rod 43 can also rotate on the outer surface of the crossbar 46. This allows the two short rods 41 to pull the crossbar 46 upwards via the push rod 43, which in turn pulls the pressure block 47 upwards on the inner side of the lower body 2. When in a vertical position, the upper body 1 drives the two short rods 41 to perform circular motion, which allows the two short rods 41 to push the crossbar 46 downward through the two push rods 43. This allows the crossbar 46 to drive the pressure block 47 downward, so that the pressure block 47 can squeeze the elastic structure. When the upper body 1 rotates inside the lower body 2, its stable right end is always located inside the lower body 2. This reduces the protrusion of the end of the upper body 1 away from the freezer when it is flipped over, and also allows for the squeezing of the elastic structure.

[0041] The pressure block 47 presses the four pressure rods 49, causing the pressure rods 49 to push the sleeve rod 410 downward, so that the three pressure rods 49 can cooperate with the horizontal plate 412 to press the spring 411.

Claims

1. A single-degree-of-freedom freezer hinge structure, comprising an upper body (1) and a lower body (2), characterized in that: The front and rear walls of the inner side of the lower body (2) are fixed with a rotating shaft (3), and the inner side of the lower body (2) is provided with an elastic structure. The top of the elastic structure is provided with a pushing structure for squeezing the elastic structure. The pushing structure includes two short rods (41), two push rods (43), two first round holes (44), two second round holes (45), a crossbar (46), a stop block (42) fixedly installed on the opposite side of the two crossbars (46), a pressure block (47) fixedly installed at the front and rear ends of the crossbar (46), and a slider (48) fixedly installed at the front and rear ends of the pressure block (47).

2. The single-degree-of-freedom freezer hinge structure according to claim 1, characterized in that: The two short rods (41) are fixed at opposite ends to the front and rear walls of the upper body (1) respectively.

3. The single-degree-of-freedom freezer hinge structure according to claim 1, characterized in that: The two first circular holes (44) are respectively opened on the upper ends of the two push rods (43) on opposite sides, and the short rod (41) is rotatably connected to the inside of the first circular holes (44).

4. The single-degree-of-freedom freezer hinge structure according to claim 1, characterized in that: The two second round holes (45) are respectively opened at the lower ends of the two push rods (43) on opposite sides, and the crossbar (46) is rotatably connected to the inside of the two second round holes (45).

5. The single-degree-of-freedom freezer hinge structure according to claim 1, characterized in that: The lower body (2) has elongated holes on both the front and rear walls, and the slider (48) is slidably connected to the inside of the elongated holes.

6. The single-degree-of-freedom freezer hinge structure according to claim 1, characterized in that: The elastic structure includes three pressure rods (49), three springs (411), a cross plate (412), and a sleeve rod (410) fixedly installed at the lower end of the pressure rods (49).

7. A single-degree-of-freedom freezer hinge structure according to claim 6, characterized in that: The top ends of the three pressure rods (49) are fixed to the lower end of the pressure block (47), the three springs (411) are respectively sleeved on the outer surface of the three sleeve rods (410), and the front and rear ends of the horizontal plate (412) are fixed to the front and rear walls of the inner side of the lower body (2).

8. The single-degree-of-freedom freezer hinge structure according to claim 1, characterized in that: The upper body (1) has rotating holes (4) on both the front and rear walls, and the rotating shaft (3) is rotatably connected to the two rotating holes (4).

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