Pressure reducing valve for refrigerator and freezer

Abstract

The utility model relates to the technical field of refrigerators and freezers, in particular to a refrigerator and freezer pressure reducing valve which comprises a foaming layer, a communicating pipe is fixedly connected to the inner wall of the foaming layer, a pressure reducing valve body is arranged on one side of the communicating pipe, and a blocking ball is arranged on the inner wall of the pressure reducing valve body. Through the arrangement of the communicating pipe, the pressure reducing valve body, the plugging ball body, the filter screen and other components, the communicating pipe can penetrate through the foaming layer and extend into the refrigerator, when negative pressure occurs in the refrigerator and the pressure exceeds the pressure borne by the interior of the pressure reducing valve body, upward suction is caused to the plugging ball body, and the sealing effect is improved. When the door of the refrigerator or the freezer needs to be opened, the blocking ball moves in the pressure reducing valve body, so that the new air enters the refrigerator or the freezer, the negative pressure degree of the refrigerator or the freezer is reduced, and the use convenience of the refrigerator or the freezer is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of refrigerators and freezers, and in particular to a refrigerator and freezer pressure reducing valve. BACKGROUND

[0002] The refrigerator and freezer is a small refrigeration device, usually used in a family environment, and mainly functions to preserve and refrigerate food. Some refrigerators have a freezing function. The refrigerator and freezer is generally designed in a vertical manner and has multiple storage areas with different temperatures, such as a refrigeration chamber, a freezing chamber (if any), a variable temperature chamber and the like, so as to meet the diverse food storage requirements.

[0003] In actual use, when the refrigerator and freezer is in a refrigeration state, a negative pressure is formed in the interior after the door is opened for the first time. When the door is opened again within 3 minutes (the time may vary according to the sealing performance of the refrigerator and freezer), it is difficult to open the door or a large force is required to open the door. In this case, the experience of the refrigerator and freezer which needs to be frequently opened is poor, and the use is inconvenient. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems mentioned in the background, the application provides a refrigerator and freezer pressure reducing valve.

[0005] The refrigerator and freezer pressure reducing valve provided by the application adopts the following technical scheme: a foaming layer is provided, an inner wall of the foaming layer is fixedly connected with a communication pipe, one side of the communication pipe is provided with a pressure reducing valve body, an inner wall of the pressure reducing valve body is provided with a plugging spherical body, and the lower side of the pressure reducing valve body is provided with a filter screen.

[0006] The upper side of the pressure reducing valve body is fixedly connected with a valve cover, an adjusting opening is formed in the upper side of the valve cover, a sliding plate on the inner wall of the adjusting opening is matched with a closing block, the upper side of the valve cover is provided with a driving assembly, and the lower side of the closing block is provided with a pressurizing mechanism.

[0007] Optionally, the driving assembly comprises a U-shaped frame fixedly connected to the upper side of the valve cover and an adjusting screw fixedly connected to the U-shaped frame, and the lower end of the adjusting screw is rotationally matched to the upper side of the closing block.

[0008] Optionally, the pressurizing mechanism comprises an extrusion spring fixedly connected to the lower side of the closing block and a pressing block fixedly connected to the lower end of the extrusion spring.

[0009] Optionally, the lower side of the pressure reducing valve body is fixedly connected with a limiting frame matched with the filter screen, two movable grooves are formed in the lower side of the limiting frame, a sliding block is slidably matched to the inner wall of each of the two movable grooves, a spring sheet is arranged between the sliding block and the movable groove, and the lower side of each of the two sliding blocks is fixedly connected with a stop block in contact with the filter screen.

[0010] Optionally, the two sides of the sealing block are fixedly connected with guide blocks, and the inner walls of the two guide blocks are slidably connected with guide rods fixedly connected with the top pressing block.

[0011] Optionally, the adjusting screw is fixedly connected with a pressing ring on the upper side.

[0012] Optionally, a plurality of screws are arranged on the valve cover and matched with the pressure reducing valve body.

[0013] In summary, the present application has the following beneficial technical effects:

[0014] 1. The utility model discloses a communication pipe, pressure reducing valve body, plugging ball, filter screen and other components are set up, can pass through the communication pipe and extend to the inside of refrigerator through the foaming layer, when the inside of refrigerator happens negative pressure, its pressure when exceeds the pressure that pressure reducing valve body inside bears, will cause the plugging ball to suck up, then the air after filtering through filter screen enters the box, forms new balance, alleviates the negative pressure situation in the refrigerator, when needing to open the door of refrigerator or freezer, the plugging ball moves in the inside of pressure reducing valve body, makes new air enter refrigerator or freezer, reduces its negative pressure degree, improves its convenient use.

[0015] 2. The utility model discloses a drive assembly, adjusting port, sealing block, pressure increasing mechanism and other components are set up, can move on the U-shaped frame through the rotation adjusting screw, pushes down sealing block and moves, pushes extrusion spring and top pressing block and the upper side between plugging ball contact, then through the extrusion of extrusion spring to different degree to different pressure that can be realized to plugging ball, is applicable to different refrigerator, improves its application range. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram in the embodiment of the application;

[0017] Figure 2 It is the whole structure schematic diagram in the embodiment of the application;

[0018] Figure 3 It is the structure schematic diagram of the enlarged structure of place A in 2 in the embodiment of the application;

[0019] Figure 4 It is the structure schematic diagram of the pressure reducing valve body in the embodiment of the application.

[0020] Mark No.: 1, foaming layer; 2, communication pipe; 3, pressure reducing valve body; 4, blocking ball; 5, filter screen; 6, valve cover; 7, adjusting port; 8, closing block; 9, driving assembly; 901, U-shaped frame; 902, adjusting screw; 10, pressurizing mechanism; 101, extrusion spring; 102, pressing block; 11, limiting frame; 12, movable slot; 13, tightening block; 14, elastic sheet; 15, stop block; 16, guide block; 17, guide rod; 18, extrusion ring; 19, screw. DETAILED DESCRIPTION

[0021] The following will be described in detail in combination with the accompanying drawings. Figure 1 The present application is further described in detail.

[0022] The embodiment of the present application discloses a refrigerator and freezer pressure reducing valve. Figures 1-4 As shown, it comprises a foaming layer 1, the inner wall of the foaming layer 1 is fixedly connected with a communication pipe 2, one side of the communication pipe 2 is provided with a pressure reducing valve body 3, the inner wall of the pressure reducing valve body 3 is provided with a blocking ball 4, the lower side of the pressure reducing valve body 3 is provided with a filter screen 5.

[0023] Please refer to Figure 4 , the lower side of the pressure reducing valve body 3 is fixedly connected with a limiting frame 11 matched with the filter screen 5, the lower side of the limiting frame 11 is provided with two movable slots 12, the inner wall of the two movable slots 12 is slidably matched with a tightening block 13, the elastic sheet 14 is arranged between the tightening block 13 and the movable slot 12, the lower side of the two tightening blocks 13 is fixedly connected with a stop block 15 in contact with the filter screen 5, the tightening block 13 is pressed by the elastic sheet 14, so that the tightening block 13 pushes the stop block 15 to limit the filter screen 5 inside the limiting frame 11, then the limiting frame 11 limits the outside of the filter screen 5, so as to realize the installation of the filter screen 5, the filter screen 5 can be disassembled by swinging the tightening block 13 to compress the elastic sheet 14, which improves the convenience of subsequent replacement or cleaning of the filter screen 5.

[0024] The upper side of the pressure reducing valve body 3 is fixedly connected with a valve cover 6, the upper side of the valve cover 6 is provided with an adjusting port 7, the inner wall of the adjusting port 7 is slidably matched with a closing block 8, the closing block 8 is in abutment with the adjusting port 7, although it is movable, but has sealing effect, the upper side of the valve cover 6 is provided with a driving assembly 9, the lower side of the closing block 8 is provided with a pressurizing mechanism 10.

[0025] Please refer to Figure 2 , the driving assembly 9 comprises a U-shaped frame 901 fixedly connected to the upper side of the valve cover 6 and an adjusting screw 902 fixedly connected to the U-shaped frame 901, the lower end of the adjusting screw 902 is rotatably matched with the upper side of the closing block 8, the closing block 8 can be pushed by rotating the adjusting screw 902.

[0026] Please refer to Figure 1The upper side of the adjusting screw 902 is fixedly connected with a pressing ring 18, which facilitates the operation convenience of the adjusting screw 902.

[0027] Please refer to Figure 3 The pressing mechanism 10 comprises a pressing spring 101 fixedly connected to the lower side of the closing block 8 and a pressing block 102 fixedly connected to the lower end of the pressing spring 101. When the closing block 8 moves downward, the pressing spring 101 and the pressing block 102 move along with the closing block 8. When the pressing block 102 contacts the blocking sphere 4, the pressing spring 101 can be pressed to increase the pressure. By pressing the pressing spring 101 to different degrees through the closing block 8, the downward pressure on the blocking sphere 4 can be adjusted, so as to be suitable for refrigerators and freezers of different sizes and powers.

[0028] Please refer to Figure 3 Both sides of the closing block 8 are fixedly connected with guide blocks 16, and the inner walls of the two guide blocks 16 are slidably connected with guide rods 17 fixedly connected with the pressing block 102. When the pressing block 102 presses the blocking sphere 4, the guide rods 17 correspondingly slide in the guide blocks 16 to guide the pressing block 102 and avoid the inclination of the pressing block 102.

[0029] Please refer to Figure 1 The valve cover 6 is provided with a plurality of screws 19, and the plurality of screws 19 are matched with the pressure reducing valve body 3. By operating the screws 19, the valve cover 6 can be conveniently operated, and the convenience of the internal maintenance of the pressure reducing valve body 3 is improved.

[0030] The implementation principle of the refrigerator and freezer pressure reducing valve in the embodiment of the application is as follows: the communication pipe 2 extends to the inside of the refrigerator through the foaming layer 1. When the negative pressure occurs in the inside of the refrigerator, the pressure exceeds the pressure that can be borne by the inside of the pressure reducing valve body 3, the blocking sphere 4 moves upward, the air filtered by the filter screen 5 enters the refrigerator, a new balance is formed, and the negative pressure in the refrigerator is reduced. When the door of the refrigerator or the freezer needs to be opened, the blocking sphere 4 moves in the inside of the pressure reducing valve body 3, so that new air enters the refrigerator or the freezer, the negative pressure degree is reduced, the use convenience is improved, the inside of the refrigerator is sealed by the gravity of the blocking sphere 4 and the inside of the pressure reducing valve body 3, the sealing effect is achieved, the waste of electric energy caused by continuous refrigeration is avoided, and the environmental protection is achieved.

[0031] The adjusting screw 902 is rotated to move on the U-shaped frame 901, the closing block 8 is pushed to move downward, the pressing spring 101 and the pressing block 102 are pushed to contact the upper side of the blocking sphere 4, and then the pressing spring 101 is pressed to different degrees, so that different pressures are applied to the blocking sphere 4, and the refrigerator is suitable for different refrigerators, and the application range is improved.

[0032] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A refrigerator-freezer pressure-reducing valve comprising a foamed layer (1), characterized in that: The inner wall of the foaming layer (1) is fixedly connected with a communicating pipe (2), one side of the communicating pipe (2) is provided with a pressure reducing valve body (3), the inner wall of the pressure reducing valve body (3) is provided with a blocking sphere (4), the lower side of the pressure reducing valve body (3) is provided with a filter screen (5); The upper side of the pressure reducing valve body (3) is fixedly connected with a valve cover (6), the upper side of the valve cover (6) is provided with an adjusting opening (7), the inner wall of the adjusting opening (7) is slidably connected with a blocking block (8), the upper side of the valve cover (6) is provided with a driving assembly (9), the lower side of the blocking block (8) is provided with a pressurizing mechanism (10).

2. A refrigerator-freezer pressure reducing valve as defined in claim 1, wherein: The driving assembly (9) comprises a U-shaped frame (901) fixedly connected to the upper side of the valve cover (6), and an adjusting screw (902) fixedly connected to the U-shaped frame (901), wherein the lower end of the adjusting screw (902) is rotatably connected to the upper side of the blocking block (8).

3. A refrigerator-freezer pressure reducing valve as defined in claim 1 wherein: The pressurizing mechanism (10) comprises an extrusion spring (101) fixedly connected to the lower side of the blocking block (8), and a pressing block (102) fixedly connected to the lower end of the extrusion spring (101).

4. A refrigerator-freezer pressure reducing valve as defined in claim 1, wherein: The lower side of the pressure reducing valve body (3) is fixedly connected with a limiting frame (11) matched with the filter screen (5), the lower side of the limiting frame (11) is provided with two movable grooves (12), the inner walls of the two movable grooves (12) are slidably connected with two tightening blocks (13), the space between the two tightening blocks (13) and the movable grooves (12) is provided with elastic sheets (14), and the lower sides of the two tightening blocks (13) are fixedly connected with stop blocks (15) in contact with the filter screen (5).

5. A refrigerator-freezer pressure reducing valve as defined in claim 3 wherein: The two sides of the blocking block (8) are fixedly connected with guide blocks (16), the inner walls of the two guide blocks (16) are slidably connected with guide rods (17) fixedly connected with the pressing block (102).

6. A refrigerator-freezer pressure reducing valve as defined in claim 2 wherein: The upper side of the adjusting screw (902) is fixedly connected with an extrusion ring (18).

7. A refrigerator-freezer pressure reducing valve as defined in claim 1, wherein: The valve cover (6) is provided with a plurality of screws (19), and the plurality of screws (19) are matched with the pressure reducing valve body (3).

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