CN216432197U

CN216432197U - Structure for keeping air pressure balance inside refrigerator

Info

Publication number: CN216432197U
Application number: CN202122478611.5U
Authority: CN
Inventors: 海华; 李世英; 陈庆晓; 葛建伟
Original assignee: Zhejiang Xingxing Refrigeration Co Ltd
Current assignee: Zhejiang Xingxing Refrigeration Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-03
Anticipated expiration: 2031-10-14

Abstract

The utility model relates to the technical field of refrigerators, in particular to a structure for keeping the internal air pressure balance of a refrigerator, which comprises a connecting pipe, an exhaust pipe and a drain pipe, wherein the connecting pipe is communicated with the drain pipe at the bottom end part of the connecting pipe; the utility model discloses a movable cover plate, circular concave piece and catch bar that set up are used for keeping the balance of the inside atmospheric pressure of refrigerator, because torsion spring's elasticity slightly is greater than expanding spring's elasticity, when the inside of refrigerator produced the negative pressure, circular concave piece received the effort and helped expanding spring outwards promote the sliding block, and the catch bar pushes away movable cover plate for the atmospheric pressure of the refrigerator inside and outside passes through the mutual circulation of blast pipe, eliminates until the inside negative pressure of refrigerator.

Description

Structure for keeping air pressure balance inside refrigerator

Technical Field

The utility model relates to a refrigerator technical field, concretely relates to keep inside atmospheric pressure balanced structure of refrigerator.

Background

A refrigerating apparatus maintaining a constant low temperature, and also a civil product maintaining food or other articles in a constant low temperature state. The box body is internally provided with a compressor, an ice maker for freezing a floor cabinet or a box and a storage box with a refrigerating device. The volume of the household refrigerator is usually 20-500 liters. The first compression-type refrigerator for domestic use was produced in the united states in the world in 1910. In 1925 swedish rodu incorporated developed a domestic absorption refrigerator. In 1927, the U.S. general electric company developed a fully enclosed refrigerator. In 1930, air-cooled continuous diffusion absorption refrigerators adopting different heating modes were put on the market. A novel refrigerant Freon 12 is developed successfully in 1931. Domestic thermoelectric refrigerators began to be produced in the latter half of the 50 s, and refrigerators were produced in china from the 50 s.

However, after the existing refrigerator is refrigerated, the temperature inside the refrigerator is reduced, when external hot air enters the refrigerator, negative pressure is formed inside the refrigerator, air pressure inside and outside the refrigerator is unbalanced, and then the door body of the refrigerator can be opened only by great effort when the refrigerator is opened, so that the user experience is poor.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

To the above-mentioned shortcoming that prior art exists, the utility model provides a keep inside atmospheric pressure balanced structure of refrigerator, solved refrigerator refrigeration back, the inside temperature of refrigerator reduces, and inside outside hot-air admission refrigerator, the inside negative pressure that forms of refrigerator, the inside and outside atmospheric pressure of refrigerator is uneven, and then leads to the refrigerator to open the door body that the refrigerator just can be opened to very big strength of needs to the refrigerator to user experience is not good problem.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a keep inside atmospheric pressure balanced structure of refrigerator, includes connecting pipe, blast pipe and drain pipe, the connecting pipe is linked together with the drain pipe of its bottom portion, the blast pipe intercommunication is in the outside of connecting pipe, the top that connecting pipe one end was kept away from to the blast pipe is equipped with settles the piece, and settles the inside of piece and be equipped with movable cover plate through pivot and torque spring, fixedly connected with embeds the piece on the inner wall of blast pipe, and the inside of embedding piece is equipped with the sliding block through expanding spring, the top of sliding block is equipped with circular concave piece through settling pole and pivot, the preceding tip of sliding block is connected through catch bar, the articulated piece of spill and pivot with the back of activity cover plate, is used for keeping the balance of the inside atmospheric pressure of refrigerator through activity cover plate, circular concave piece and catch bar that set up.

Furthermore, the middle part of the drain pipe is fixedly connected with a telescopic pipe, one end of the drain pipe, which is far away from the connecting pipe, extends into the water pan of the refrigerator, and the telescopic pipe can facilitate the extension and retraction of the drain pipe so as to facilitate the extension of the other end of the drain pipe into the water pan.

Furthermore, the inside of the placing block is provided with a built-in groove, the inside of the built-in groove is rotatably connected with a movable cover plate through a rotating shaft, the built-in groove connected through the rotating shaft and two opposite surfaces of the movable cover plate are connected through a torsion spring, and the built-in groove, the rotating shaft and the torsion spring are used for connecting and assisting the opening and closing of the movable cover plate.

Furthermore, a sliding groove matched with the sliding block is formed in the built-in block, the sliding block is installed in the sliding groove in a sliding mode, an expansion spring is fixedly connected to the inner wall of the sliding groove, and one end, far away from the inner wall of the sliding groove, of the expansion spring is connected with the back face of the sliding block; the top fixed mounting of sliding block has the arrangement pole, the back of arranging the pole and keeping away from sliding block one end is rotated through the pivot and is connected with circular concave piece, and when the inside of refrigerator produced the negative pressure, circular concave piece received the effort and helped expanding spring outwards promote the sliding block, and the catch bar pushes away the activity cover plate for the atmospheric pressure of the refrigerator inside and outside circulates each other through the blast pipe.

Furthermore, the outside fixed mounting at the activity cover plate back has the rubber ring, the back fixed mounting of activity cover plate has the articulated piece of spill, the front fixed mounting of sliding block has the catch bar, and the catch bar is kept away from the one end of sliding block and is rotated the inboard of connecting at the articulated piece of spill through the pivot, and the rubber ring is used for sealing the space between blast pipe and the circular concave piece.

Furthermore, the circular concave sheet is made of elastic rubber, the elastic force of the torsion spring is slightly larger than that of the telescopic spring, so that the circular concave sheet can assist the telescopic spring to push the sliding block according to the air pressure in the refrigerator, and the movable cover plate is opened.

Advantageous effects

Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:

1. the utility model discloses a movable cover plate, circular concave piece and catch bar that set up are used for keeping the equilibrium of refrigerator inside atmospheric pressure, because torsion spring's elasticity slightly is greater than expanding spring's elasticity, when the inside of refrigerator produced the negative pressure, circular concave piece received the effort and helped expanding spring outwards to promote the sliding block, the catch bar pushed the movable cover plate open, made the inside and outside atmospheric pressure of refrigerator circulate each other through the blast pipe, until the inside negative pressure of refrigerator is eliminated, solved because of the inside and outside atmospheric pressure unbalance of refrigerator, lead to the inconvenient problem of refrigerator opening the door; when the air pressure of the refrigerator is balanced, the acting force of the concave surface of the circular concave sheet disappears, the movable cover sheet is reset by the torsion spring, the exchange of the air pressure inside and outside the refrigerator is cut off, and the door opening experience of the refrigerator is improved.

2. The utility model discloses a set up circular concave piece concave surface in the inboard, and its material is made by elastic rubber, can make it receive well and exert the ground force because of the inside negative pressure of refrigerator to when the inside and outside atmospheric pressure of refrigerator differed the setting value, can open movable cover plate automatically, and then made things convenient for the maintenance of the inside and outside atmospheric pressure balanced structure of refrigerator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic perspective view of a balance assembly of the present invention;

fig. 2 is a schematic view of the three-dimensional anatomical structure of the exhaust pipe of the present invention;

FIG. 3 is a schematic plan sectional view of the exhaust pipe of the present invention;

the reference numerals in the drawings denote: 1. a connecting pipe; 2. an exhaust pipe; 3. a drain pipe; 4. a telescopic pipe; 5. a mounting block; 6. a movable cover plate; 7. a built-in groove; 8. a torsion spring; 9. a rubber ring; 10. a concave hinge block; 11. a built-in block; 12. a sliding groove; 13. a circular concave sheet; 14. a push rod; 15. a slider; 16. arranging a rod; 17. a telescoping spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example 1

The structure for keeping the internal air pressure balance of the refrigerator of the embodiment comprises a connecting pipe 1, an exhaust pipe 2 and a drain pipe 3, wherein the connecting pipe 1 is communicated with the drain pipe 3 at the bottom end part of the connecting pipe 1, the exhaust pipe 2 is communicated with the outer side of the connecting pipe 1, a mounting block 5 is arranged at the top of one end, away from the connecting pipe 1, of the exhaust pipe 2, a movable cover plate 6 is arranged inside the mounting block 5 through a rotating shaft and a torsion spring 8, a built-in block 11 is fixedly connected to the inner wall of the exhaust pipe 2, a sliding block 15 is arranged inside the built-in block 11 through a telescopic spring 17, a circular concave sheet 13 is arranged at the top of the sliding block 15 through a mounting rod 16 and the rotating shaft, and the front end part of the sliding block 15 is connected with the back surface of the movable cover plate 6 through a push rod 14, a concave hinged block 10 and the rotating shaft; the middle part of the drain pipe 3 is fixedly connected with a telescopic pipe 4, and one end of the drain pipe 3, which is far away from the connecting pipe 1, extends into the water pan of the refrigerator.

In this embodiment, when using this inside atmospheric pressure balanced subassembly of refrigerator, earlier with connecting pipe 1 connection in the downcomer department of refrigerator, later and extend into the refrigerator water collector with the one end that drain pipe 3 kept away from connecting pipe 1, can make the atmospheric pressure of refrigerator inside and outside circulate each other through blast pipe 2 like this, eliminate until the inside negative pressure of refrigerator, solved because of the inside and outside atmospheric pressure imbalance of refrigerator, lead to the inconvenient problem of refrigerator opening the door.

Example 2

As shown in fig. 2 to 3, an inner groove 7 is formed in the mounting block 5, a movable cover plate 6 is rotatably connected to the inner portion of the inner groove 7 through a rotating shaft, and the inner groove 7 and the movable cover plate 6 connected through the rotating shaft are connected to each other at opposite surfaces thereof by a torsion spring 8; a sliding groove 12 matched with the sliding block 15 is formed in the built-in block 11, the sliding block 15 is installed in the sliding groove 12 in a sliding mode, an expansion spring 17 is fixedly connected to the inner wall of the sliding groove 12, and one end, far away from the inner wall of the sliding groove 12, of the expansion spring 17 is connected with the back face of the sliding block 15; the top of the sliding block 15 is fixedly provided with a mounting rod 16, and the back of one end of the mounting rod 16 far away from the sliding block 15 is rotatably connected with a circular concave sheet 13 through a rotating shaft; the rubber ring 9 is fixedly installed on the outer side of the back surface of the movable cover plate 6, the concave hinge block 10 is fixedly installed on the back surface of the movable cover plate 6, the push rod 14 is fixedly installed on the front surface of the sliding block 15, and one end, far away from the sliding block 15, of the push rod 14 is rotatably connected to the inner side of the concave hinge block 10 through a rotating shaft; the circular concave piece 13 is made of elastic rubber, and the elastic force of the torsion spring 8 is slightly larger than that of the extension spring 17.

In the embodiment, the movable cover plate 6, the circular concave plate 13 and the push rod 14 are used for keeping balance of air pressure inside the refrigerator, because the elastic force of the torsion spring 8 is slightly larger than the elastic force of the telescopic spring 17, when negative pressure is generated inside the refrigerator, the circular concave plate 13 receives acting force and assists the telescopic spring 17 to push the sliding block 15 outwards, at the moment, the push rod 14 pushes the movable cover plate 6 away, so that the air pressure inside and outside the refrigerator is mutually communicated through the exhaust pipe 2 until the negative pressure inside the refrigerator is eliminated, and the problem of inconvenient door opening of the refrigerator due to unbalanced air pressure inside and outside the refrigerator is solved; when the air pressure of the refrigerator is balanced, the acting force of the concave surface of the circular concave sheet 13 disappears, the movable cover sheet 6 is reset by the torsion spring 8, the exchange of the air pressure inside and outside the refrigerator is cut off, and the door opening experience of the refrigerator is improved.

In this embodiment, the concave surface of the circular concave piece 13 is arranged at the inner side, and the material of the circular concave piece is made of elastic rubber, so that the circular concave piece can receive the ground force applied by negative pressure in the refrigerator, and when the difference between the air pressure in the refrigerator and the air pressure in the refrigerator reaches a set value, the movable cover piece 6 can be automatically opened, thereby facilitating the maintenance of the internal and external air pressure balance structure of the refrigerator.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a keep inside atmospheric pressure balanced structure of refrigerator, includes connecting pipe (1), blast pipe (2) and drain pipe (3), its characterized in that: connecting pipe (1) is linked together rather than drain pipe (3) of bottom portion, blast pipe (2) intercommunication is in the outside of connecting pipe (1), the top of connecting pipe (1) one end is kept away from in blast pipe (2) is equipped with settles piece (5), and settles the inside of piece (5) and be equipped with movable cover plate (6) through pivot and torsion spring (8), fixedly connected with embeds piece (11) on the inner wall of blast pipe (2), and just the inside of embedding piece (11) is equipped with sliding block (15) through expanding spring (17), the top of sliding block (15) is equipped with circular concave piece (13) through settling pole (16) and pivot, the front end of sliding block (15) is connected through catch bar (14), spill hinge block (10) and pivot with the back of movable cover plate (6).

2. The structure for keeping the air pressure inside the refrigerator balanced according to claim 1, characterized in that a telescopic pipe (4) is fixedly connected to the middle part of the drain pipe (3), and one end of the drain pipe (3) far away from the connecting pipe (1) extends into a water pan of the refrigerator.

3. The structure for maintaining the balance of air pressure inside the refrigerator according to claim 1, wherein the inside of the mounting block (5) is provided with an inner groove (7), the inside of the inner groove (7) is rotatably connected with a movable cover plate (6) through a rotating shaft, and two opposite surfaces of the inner groove (7) and the movable cover plate (6) which are connected through the rotating shaft are connected through a torsion spring (8).

4. The structure for keeping the air pressure balance inside the refrigerator according to claim 1, wherein a sliding groove (12) adapted to the sliding block (15) is formed inside the built-in block (11), the sliding block (15) is slidably installed inside the sliding groove (12), an expansion spring (17) is fixedly connected to the inner wall of the sliding groove (12), and one end of the expansion spring (17) far away from the inner wall of the sliding groove (12) is connected to the back surface of the sliding block (15); the top fixed mounting of sliding block (15) has arrangement pole (16), the back of arranging pole (16) and keeping away from sliding block (15) one end is connected with circular concave piece (13) through the pivot rotation.

5. The structure for keeping the air pressure balance inside the refrigerator according to claim 1, wherein a rubber ring (9) is fixedly installed on the outer side of the back surface of the movable cover plate (6), a concave hinge block (10) is fixedly installed on the back surface of the movable cover plate (6), a push rod (14) is fixedly installed on the front surface of the sliding block (15), and one end, far away from the sliding block (15), of the push rod (14) is rotatably connected to the inner side of the concave hinge block (10) through a rotating shaft.

6. The structure for maintaining air pressure balance inside a refrigerator according to claim 1, wherein the circular concave piece (13) is made of elastic rubber, and the elastic force of the torsion spring (8) is slightly greater than that of the extension spring (17).