Refrigerator air door with good sealing performance

Abstract

The utility model is applicable to the technical field of refrigerator air doors, and provides a refrigerator air door with good sealing performance, which comprises a rectangular outer frame body with an open top end and an open bottom end, the lower part of the inner cavity of the outer frame body is transversely and fixedly connected with a transverse plate, one side of the upper surface of the transverse plate is vertically provided with an air outlet in a penetrating manner, and the top end of the air outlet is expanded outwards to form a lap joint groove. According to the refrigerator air door with the good sealing performance, the two threaded rods, the movable plate and the lap joint plate are arranged, the air door structure of the device drives the movable plate to move through rotation of the two threaded rods so as to drive the lap joint plate to move, and when the air door needs to be closed, the lap joint plate can be driven to move in the direction of the air outlet by rotating the two threaded rods; and meanwhile, under the action of the elastic force of the springs, the lap joint plate always bears a force towards the air outlet direction, so that the lap joint plate is always attached to the lap joint groove, gaps are avoided, and the sealing performance of the structure is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerator air doors, and in particular relates to a refrigerator air door with good sealing performance. Background Art

[0002] A refrigerator is a refrigeration device that keeps a constant low temperature. It is also a civilian product that keeps food or other items at a constant low temperature. The box contains a compressor, an ice maker, a cabinet or box for ice making, and a storage box with a refrigeration device.

[0003] The refrigerator insures the food inside by circulating cold air, which is achieved by relying on dampers. However, the current damper structures are often single-sided structures similar to door leaves, but they do not have a door lock structure to fix them. Therefore, the refrigerator damper structure is prone to air leakage. Utility Model Content

[0004] The utility model provides a refrigerator air door with good sealing performance, aiming to solve the problem that the existing refrigerator air door structure is prone to air leakage and has poor sealing performance.

[0005] The utility model is realized as follows: a refrigerator air door with good sealing performance comprises an outer frame body with both the top and bottom ends open and in a rectangular shape, a horizontal plate is fixedly connected to the lower part of the inner cavity of the outer frame body, an air outlet is vertically penetrated on one side of the upper surface of the horizontal plate, and the top of the air outlet is expanded outward to form a lap groove;

[0006] The upper surface of the horizontal plate and both sides of the overlapping groove are vertically rotatably connected with threaded rods, the outer surfaces of the two threaded rods are threadedly connected with threaded sleeves, a movable plate is transversely fixedly connected between the two threaded sleeves, the bottom end of the movable plate is vertically fixedly connected with a plurality of compression springs, the bottom ends of the plurality of compression springs are transversely fixedly connected with a overlapping plate adapted to the overlapping groove, and the bottom end of the overlapping plate is fixedly connected with a closing plate adapted to the air outlet.

[0007] Preferably, the upper surface of the horizontal plate and both sides of the two threaded rods are vertically fixedly connected with guide rods, the outer surfaces of the multiple guide rods are vertically slidably connected with guide blocks, and the multiple guide blocks are fixedly connected to the outer surface of the lap plate.

[0008] Preferably, the top ends of the two threaded rods are respectively fixedly connected with a first pulley and a double-track pulley, and the lower track of the double-track pulley and the first pulley are connected via a belt transmission.

[0009] Preferably, a device box is fixedly connected to the other side of the upper surface of the horizontal plate, a motor is fixedly connected to one side surface of the device box, a second pulley is fixedly connected to the output shaft surface of the motor, and the second pulley is connected to the upper track of the double-track pulley through a belt.

[0010] Preferably, a sealing ring matching the contour shape of the overlapping groove is fixedly connected to the interior of the overlapping groove. Beneficial Effects

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is a refrigerator damper with good sealing performance, which is provided with two threaded rods, a movable plate and a lap plate. The damper structure of the device drives the movable plate to move by rotating the two threaded rods, thereby driving the lap plate to move. When the damper needs to be closed, the lap plate can be driven to move in the direction of the air outlet by rotating the two threaded rods until the lap plate is completely and tightly fitted with the lap groove. At the same time, under the elastic force of multiple springs, the lap plate will always be subjected to a force in the direction of the air outlet, so that the lap plate is always fitted with the lap groove, thus avoiding the generation of gaps, thereby ensuring the sealing performance of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 for Figure 2 A partial enlarged view of the area at point A.

[0015] In the figure: 1-outer frame, 2-cross plate, 3-air outlet, 4-lap groove, 5-threaded rod, 6-threaded sleeve, 7-first pulley, 8-double-track pulley, 9-movable plate, 10-compression spring, 11-lap plate, 12-closing plate, 13-equipment box, 14-motor, 15-second pulley, 16-guide rod, 17-guide block, 18-sealing ring. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a refrigerator air door with good sealing performance, including an outer frame body 1 with both top and bottom ends open and in a rectangular shape, a horizontal plate 2 is horizontally fixedly connected to the lower part of the inner cavity of the outer frame body 1, an air outlet 3 is vertically penetrated on one side of the upper surface of the horizontal plate 2, and the top of the air outlet 3 is expanded outward to form a lap groove 4.

[0018] The upper surface of the horizontal plate 2 and both sides of the overlapping groove 4 are vertically rotatably connected with threaded rods 5, the outer surfaces of the two threaded rods 5 are threadedly connected with threaded sleeves 6, a movable plate 9 is transversely fixedly connected between the two threaded sleeves 6, the bottom end of the movable plate 9 is vertically fixedly connected with multiple compression springs 10, the bottom ends of the multiple compression springs 10 are transversely fixedly connected with a overlapping plate 11 adapted to the overlapping groove 4, and the bottom end of the overlapping plate 11 is fixedly connected with a closing plate 12 adapted to the air outlet 3.

[0019] In the present embodiment, the damper structure of the device drives the movable plate 9 to move by rotating the two threaded rods 5, thereby driving the lap plate 11 to move. When the damper needs to be closed, the lap plate 11 can be driven to move in the direction of the air outlet 3 by rotating the two threaded rods 5 until the lap plate 11 is completely and tightly fitted with the lap groove 4. At the same time, under the elastic force of multiple compression springs 10, the lap plate 11 will always be subjected to a force in the direction of the air outlet 3, so that the lap plate 11 is always fitted with the lap groove 4, thereby avoiding the generation of gaps, thereby ensuring the sealing performance of the structure.

[0020] During the rotation of the two threaded rods 5, the threaded sleeves 6 on their surfaces will move up and down synchronously, thereby driving the movable plate 9 to move. After the lap plate 11 is tightly fitted with the lap groove 4, the closing plate 12 will also be fastened with the air outlet 3, thereby achieving double closure and improving the sealing effect of the device.

[0021] Furthermore, guide rods 16 are vertically fixedly connected to the upper surface of the cross plate 2 and on both sides of the two threaded rods 5, and guide blocks 17 are vertically slidably connected to the outer surfaces of the multiple guide rods 16, and the multiple guide blocks 17 are fixedly connected to the outer surface of the lap plate 11.

[0022] In this embodiment, the guide block 17 and the guide rod 16 can play a guiding and limiting role, thereby preventing the overlapping plate 11 from tilting during movement, resulting in a loose fit with the overlapping groove 4 and a gap.

[0023] Furthermore, the top ends of the two threaded rods 5 are respectively fixedly connected with a first pulley 7 and a double-track pulley 8, and the lower track of the double-track pulley 8 and the first pulley 7 are connected via a belt transmission.

[0024] A device box 13 is fixedly connected to the other side of the upper surface of the horizontal plate 2, a motor 14 is fixedly connected to the surface of one side of the device box 13, a second pulley 15 is fixedly connected to the output shaft surface of the motor 14, and the second pulley 15 is connected to the upper track of the double-track pulley 8 through a belt.

[0025] In this embodiment, when the motor 14 is running, its output shaft rotates, and the double-track pulley 8 can be driven to rotate through the second pulley 15, thereby synchronously driving the first pulley 7 to rotate, thereby achieving synchronous rotation of the two threaded rods 5.

[0026] Furthermore, a sealing ring 18 matching the contour shape of the overlapping groove 4 is fixedly connected inside thereof.

[0027] In this embodiment, the seal ring 18 serves to improve the sealing effect.

[0028] Furthermore, the thickness of the overlapping plate 11 is greater than the cross-sectional height of the overlapping groove 4 .

[0029] In this embodiment, the thickness of the lap plate 11 is greater than the cross-sectional height of the lap groove 4 , which can prevent the lap plate 11 from being affected by the plurality of guide blocks 17 and failing to fit tightly with the lowest end of the lap groove 4 .

[0030] The working principle and use process of the utility model: after the utility model is installed, the damper structure of the device drives the movable plate 9 to move by rotating the two threaded rods 5, thereby driving the lap plate 11 to move. When the damper needs to be closed, the lap plate 11 can be driven to move in the direction of the air outlet 3 by rotating the two threaded rods 5 until the lap plate 11 is completely and tightly fitted with the lap groove 4. At the same time, under the elastic force of multiple compression springs 10, the lap plate 11 will always be subjected to a force in the direction of the air outlet 3, so that the lap plate 11 is always fitted with the lap groove 4, thus avoiding the generation of gaps, thereby ensuring the sealing performance of the structure.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerator damper with good sealing performance, characterized in that: It comprises an outer frame (1) which is open at both the top and bottom and is rectangular, a horizontal plate (2) being laterally fixedly connected to the lower part of the inner cavity of the outer frame (1), an air outlet (3) being vertically penetrated through one side of the upper surface of the horizontal plate (2), and the top of the air outlet (3) is expanded outward to form a lap groove (4); The upper surface of the horizontal plate (2) and both sides of the overlapping groove (4) are vertically rotatably connected with threaded rods (5), the outer surfaces of the two threaded rods (5) are threadedly connected with threaded sleeves (6), a movable plate (9) is transversely fixedly connected between the two threaded sleeves (6), the bottom end of the movable plate (9) is vertically fixedly connected with a plurality of compression springs (10), the bottom ends of the plurality of compression springs (10) are transversely fixedly connected with an overlapping plate (11) adapted to the overlapping groove (4), and the bottom end of the overlapping plate (11) is fixedly connected with a closing plate (12) adapted to the air outlet (3).

2. A refrigerator damper with good sealing performance as claimed in claim 1, characterized in that: Guide rods (16) are vertically fixedly connected to the upper surface of the transverse plate (2) and located on both sides of the two threaded rods (5); guide blocks (17) are vertically slidably connected to the outer surfaces of the plurality of guide rods (16); and the plurality of guide blocks (17) are fixedly connected to the outer surface of the lap plate (11).

3. A refrigerator damper with good sealing performance as claimed in claim 1, characterized in that: The top ends of the two threaded rods (5) are respectively fixedly connected to a first belt pulley (7) and a double-track belt pulley (8), and the lower track of the double-track belt pulley (8) and the first belt pulley (7) are connected via a belt transmission.

4. A refrigerator damper with good sealing performance as claimed in claim 3, characterized in that: A device box (13) is fixedly connected to the other side of the upper surface of the transverse plate (2), a motor (14) is fixedly connected to the surface of one side of the device box (13), a second pulley (15) is fixedly connected to the surface of the output shaft of the motor (14), and the second pulley (15) is connected to the upper track of the double-track pulley (8) through a belt.

5. A refrigerator damper with good sealing performance as claimed in claim 1, characterized in that: A sealing ring (18) matching the contour shape of the overlapping groove (4) is fixedly connected to the inside of the overlapping groove (4).

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