Air pressure balance valve of cabinet freezer

Abstract

The utility model discloses an air pressure balance valve of a cabinet freezer, which belongs to the technical field of cabinet freezers and comprises a valve body, a cabinet body connector is arranged at the bottom of the valve body, a limit groove is arranged on the cabinet body connector, a sealing ball capable of sealing the cabinet body connector is movably arranged in the limit groove, one side of the valve body is connected with a pipeline, and the pipeline is communicated with the external environment. When the door of the cabinet freezer is opened, the fan is started, strong convection air is formed in the cabinet freezer, the sealing ball in the valve body is blown up, the cabinet body connector is communicated with the pipeline, air is exhausted outwards to enable air pressure in the cabinet freezer to be balanced rapidly, and therefore the effect that the door is opened easily is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of freezer technology, and more specifically, relates to a freezer pressure balancing valve. Background Technology

[0002] Currently, freezers commonly exhibit negative pressure, which generally occurs as follows: When the door is opened, gas exchange occurs between the freezer compartment and the outside, with warm outside air entering the freezer compartment; after the door is closed, the warm air inside the freezer compartment gradually cools down due to the cooling effect, reducing the pressure inside and creating a pressure difference between the inside and outside of the freezer. This results in users needing considerable force to open the door. Utility Model Content

[0003] The main objective of this invention is to provide a pressure balancing valve for freezers to solve the problems mentioned above in the background.

[0004] According to a first aspect of the present invention, a pressure balancing valve for a freezer is provided, comprising a valve body, a cabinet connection port being provided at the bottom of the valve body, a limiting groove being provided on the cabinet connection port, a sealing ball being movably disposed in the limiting groove to seal the cabinet connection port, and a pipe being connected to one side of the valve body, the pipe being connected to the external environment.

[0005] In a specific embodiment of this utility model, the inner wall of the limiting groove is in contact with the outer wall of the sealing ball, and the maximum inner diameter of the limiting groove is smaller than the maximum outer diameter of the sealing ball.

[0006] In a specific embodiment of this utility model, a protective cover is fixedly provided at the end of the cabinet connection port away from the limiting groove.

[0007] In a specific embodiment of this utility model, the cabinet connection port, the limiting groove, and the protective cover are integrated into one unit.

[0008] In a specific embodiment of this utility model, a first filter screen is sleeved on the end of the cabinet connection port away from the limiting groove.

[0009] In a specific embodiment of this utility model, the two ends of the pipe are respectively connected to the interior and exterior environments of the valve body, and a protective cover is detachably installed on the end of the pipe away from the valve body, and a second filter screen is detachably installed on the protective cover.

[0010] In a specific embodiment of this utility model, a limit rod is provided at one end of the pipeline near the valve body.

[0011] In a specific embodiment of this utility model, the valve body is symmetrically provided with assembly parts, and the assembly parts are provided with assembly holes.

[0012] In a specific embodiment of this utility model, the limiting groove has a rounded corner at one end near the valve body.

[0013] In a specific embodiment of this utility model, a top cover is detachably installed on the top of the valve body.

[0014] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0015] When the freezer door is opened, the fan starts, creating a strong convection airflow inside the freezer. This causes the sealing ball inside the valve to be blown up. At this time, the connection port of the freezer body is connected to the pipe, and exhaust is discharged outward, which quickly balances the air pressure inside the freezer, thus achieving the effect of easy door opening. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the structure of the air pressure balance valve of the freezer in one embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional view of the air pressure balancing valve of the freezer in one embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pressure balance valve of the freezer without a top cover in one embodiment of this utility model. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0025] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0026] Reference Figures 1 to 3 As shown, a pressure balancing valve for a freezer is provided, including a valve body 1. The bottom of the valve body 1 has a cabinet connection port 11. A limiting groove 12 is provided on the cabinet connection port 11. A sealing ball 2 that can seal the cabinet connection port 11 is movably disposed in the limiting groove 12. A pipe 3 is connected to one side of the valve body 1, and the pipe 3 is connected to the external environment.

[0027] In this embodiment, when the freezer door is opened, the fan starts, and a strong convection airflow is formed inside the freezer, causing the sealing ball 2 inside the valve body 1 to be blown up. At this time, the cabinet connection port 11 is connected to the pipe 3, and exhaust is discharged to quickly balance the air pressure inside the freezer, thereby achieving the effect of easy door opening.

[0028] In one embodiment of this utility model, the inner wall of the limiting groove 12 is in contact with the outer wall of the sealing ball 2. The maximum inner diameter of the limiting groove 12 is smaller than the maximum outer diameter of the sealing ball 2. When the freezer door is opened, the fan starts, and a strong convection airflow is formed inside the freezer, causing the sealing ball 2 in the limiting groove 12 to be blown up. At this time, the cabinet connection port 11 is connected to the pipe 3, and exhaust is discharged to quickly balance the air pressure inside the freezer, thereby achieving the effect of easy door opening. After the air pressure of the freezer is balanced with the external environment, the sealing ball 2 falls back into the limiting groove 12 and is tightly in contact with the inner wall of the limiting groove 12. The maximum inner diameter of the limiting groove 12 is smaller than the maximum outer diameter of the sealing ball 2 to avoid gaps between the sealing ball 2 and the limiting groove 12.

[0029] In one embodiment of this utility model, a protective cover 111 is fixedly provided at the end of the cabinet connection port 11 away from the limiting groove 12 to prevent mice or other large objects from entering the cabinet.

[0030] Preferably, the cabinet connection port 11, the limiting groove 12, and the protective cover 111 are integrated into one unit.

[0031] In one embodiment of this utility model, a first filter screen 7 is sleeved on the end of the cabinet connection port 11 away from the limiting groove 12 to prevent dust and other impurities from entering the cabinet. At the same time, the first filter screen 7 is sleeved on the outside of the cabinet connection port 11, which can be easily disassembled and cleaned.

[0032] In one embodiment of this utility model, the two ends of the pipe 3 are respectively connected to the interior and exterior environment of the valve body 1. A protective cover 4 is detachably installed on the end of the pipe 3 away from the valve body 1. A second filter screen 8 is detachably installed on the protective cover 4. The pipe 3 is connected to the exterior environment. The second filter screen 8 is installed on the protective cover 4 and is located on one side of the pipe 3. The second filter screen 8 can be removed by removing the protective cover 4.

[0033] In one embodiment of this utility model, a limiting rod 5 is provided at one end of the pipe 3 near the valve body 1 to prevent the sealing ball 2 from being sucked into the connection between the pipe 3 and the valve body 1 and causing blockage. Preferably, a stop rod is connected to the inner wall of the valve body 1 in the middle of the limiting rod 5, which can effectively limit the blowing height of the sealing ball 2 and prevent the sealing ball 2 from not being able to return to the limiting groove 12.

[0034] In one embodiment of the present invention, an assembly part 13 is symmetrically arranged on the outside of the valve body 1, and an assembly hole 14 is provided on the assembly part 13. The assembly part 13 and the assembly hole 14 are used to fix the air pressure balance valve.

[0035] In one embodiment of this utility model, the end of the limiting groove 12 near the valve body 1 is provided with a rounded corner 121 to prevent the sealing ball 2 from being damaged by impact when it falls, which may cause a gap between the sealing ball 2 and the limiting groove 12. Preferably, a silicone part can be provided at the end of the limiting groove 12 near the valve body 1 to reduce the wear between the sealing ball 2 and the limiting groove 12 and extend the service life.

[0036] In one embodiment of this utility model, a top cover 6 is detachably installed on the top of the valve body 1 to facilitate subsequent maintenance and replacement of parts.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pressure balancing valve for a freezer, characterized in that, The valve body (1) includes a cabinet connection port (11) at the bottom of the valve body (1). A limiting groove (12) is provided on the cabinet connection port (11). A sealing ball (2) that can seal the cabinet connection port (11) is movably arranged in the limiting groove (12). A pipe (3) is connected to one side of the valve body (1). The pipe (3) is connected to the external environment.

2. The freezer pressure balancing valve according to claim 1, characterized in that, The inner wall of the limiting groove (12) is in contact with the outer wall of the sealing ball (2), and the maximum inner diameter of the limiting groove (12) is smaller than the maximum outer diameter of the sealing ball (2).

3. The freezer pressure balancing valve according to claim 1, characterized in that, A protective cover (111) is fixedly installed at the end of the cabinet connection port (11) away from the limiting groove (12).

4. The freezer pressure balancing valve according to claim 3, characterized in that, The cabinet connection port (11), the limiting groove (12), and the protective cover (111) are integrated into one unit.

5. The freezer pressure balancing valve according to claim 1, characterized in that, A first filter screen (7) is fitted onto the end of the cabinet connection port (11) away from the limiting groove (12).

6. The freezer pressure balancing valve according to claim 1, characterized in that, The two ends of the pipe (3) are respectively connected to the interior and exterior environment of the valve body (1). A protective cover (4) is detachably installed on the end of the pipe (3) away from the valve body (1). A second filter screen (8) is detachably installed on the protective cover (4).

7. The freezer pressure balancing valve according to claim 1, characterized in that, A limit rod (5) is provided at one end of the pipe (3) near the valve body (1).

8. The freezer pressure balancing valve according to claim 1, characterized in that, The valve body (1) is symmetrically provided with an assembly part (13) on its exterior, and the assembly part (13) is provided with an assembly hole (14).

9. The freezer pressure balancing valve according to claim 1, characterized in that, The limiting groove (12) has a rounded corner (121) at one end near the valve body (1).

10. The freezer pressure balancing valve according to claim 1, characterized in that, The valve body (1) is detachably fitted with a top cover (6).

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