CN208042598U - Door body with function of balancing air pressure and refrigeration equipment - Google Patents

Abstract

The utility model discloses a door body and refrigeration equipment with air pressure balancing function. The door body with the function of air pressure balance includes a thermal insulation door and a handle, the thermal insulation door is provided with a ventilation pipe, the handle is provided with a valve for switching the outer nozzle of the ventilation pipe, the inner surface of the thermal insulation door An elastic air chamber is provided, and the inner nozzle of the ventilation pipe communicates with the elastic air chamber. To achieve the air pressure balance inside and outside the box when opening the door, reduce frosting inside the box due to air pressure balance, so as to improve user experience.

Description

Door body and refrigeration equipment with air pressure balance function

technical field

The utility model relates to refrigeration equipment, in particular to a door body and refrigeration equipment with air pressure balancing function.

Background technique

At present, the insulated boxes used for refrigeration equipment (refrigerators, freezers, etc.) usually include a box body and a door body. , so that when the door is opened, it is difficult to open the door due to the negative pressure inside the box. How to design a refrigeration device that is easy to open to improve user experience is the technical problem to be solved by the utility model.

Utility model content

The utility model provides a door body and refrigeration equipment with air pressure balance function, which can meet the requirements of air pressure balance inside and outside the box when opening the door, and facilitate the user to open the door body to improve the performance of the user.

In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical solutions to realize:

A door body with an air pressure balance function, characterized in that it includes a thermal insulation door and a handle, the thermal insulation door includes a casing and a door lining, an insulation layer is arranged between the casing and the door lining, and the thermal insulation door A ventilation pipe is also provided, a first through hole is opened on the side wall of the casing, a second through hole is opened on the door lining, and the ventilation pipe is connected between the first through hole and the second through hole. Between the holes, the handle is provided with a valve for opening and closing the first through hole.

Further, the inner wall of the ventilation pipe is provided with a hydrophobic coating.

Further, an elastic air chamber is provided on the door liner, and the second through hole communicates with the elastic air chamber.

Further, an elastic film is arranged on the inner surface of the heat preservation door, and the edge of the elastic film is sealed and arranged on the inner surface of the heat preservation door, and the elastic film covers the inner nozzle of the ventilation pipe, and the An elastic membrane forms the elastic air cavity.

Further, the second through hole has an elastic air bag, and the elastic air bag forms the elastic air cavity.

Further, the second through hole is provided with a pipe joint, one port of the pipe joint is connected to the ventilation pipe, and the edge of the other port of the pipe joint is formed with an outer flange structure, and the outer flange The structure leans against the inner surface of the thermal insulation door, and the elastic air cavity is arranged on the outer flange structure.

Further, the handle is provided with a rotatable connecting rod, and the connecting rod is provided with a sealing ball, the sealing ball is the valve, and the sealing ball is arranged opposite to the outer nozzle of the ventilation pipe; When the connecting rod is not stressed, the sealing ball blocks the outer nozzle of the vent pipe.

Further, the handle includes a base and a rotating bracket, the base is fixed on the housing, the rotating bracket is rotatably mounted on the base, and the rotating bracket and the base A return torsion spring is also provided, and a sealing ball is provided on the rotating bracket, and the sealing ball is the valve, and the sealing ball is arranged opposite to the second through hole; when the rotating bracket is not stressed, The sealing ball blocks the first through hole.

Further, the handle is also provided with a decorative cover, and the decorative cover is fixed on the base and covers the rotating bracket; an operation hole is provided on the base, and the bottom of the rotating bracket A pressing handle inserted into the operation hole is provided.

The utility model also provides a refrigeration device, which includes the above-mentioned door body with air pressure balancing function.

Compared with the prior art, the advantages and positive effects of the utility model are: by setting the ventilation pipe in the thermal insulation door, and setting the valve for switching the ventilation pipe on the handle, when the user opens the door, he drives the valve to open, so that The ventilation pipe is connected with the outside world, so that under the action of the external air pressure, the outside world enters the door body through the ventilation pipe to balance the pressure in the refrigeration equipment. experiential.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying creative labor.

Fig. 1 is a schematic diagram of a partial structure of an embodiment of a door body with an air pressure balance function of the present invention.

Fig. 2 is the assembly diagram of the ventilation pipe, the valve and the elastic air chamber in the embodiment of the door body with air pressure balance function of the present invention;

Fig. 3 is an exploded view of an embodiment of the door body with air pressure balancing function of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Fig. 1-Fig. 3, the door body with air pressure balance function in this embodiment includes a thermal insulation door 1 and a handle 2. The thermal insulation door 1 includes a casing 101 and a door lining 102, and There is an insulation layer between them, the insulation door 1 is also provided with a ventilation pipe 11, the side wall of the shell 101 is provided with a first through hole (unmarked), and the door lining 102 is provided with a second through hole (not marked), the vent pipe 11 is connected between the first through hole and the second through hole, and the handle 2 is provided with a valve 3 for opening and closing the first through hole.

Specifically, in this embodiment, the thermal insulation door 1 of the door body with air pressure balance function is provided with a vent pipe 11 communicating with the inside and outside of the refrigeration equipment box, and the outer nozzle of the vent pipe 11 is connected with the first through hole, and the first through hole The through hole is blocked by the valve 3. In actual use, when the insulation door 1 is closed, a negative pressure will be formed inside the refrigeration equipment box due to low temperature. When the user needs to open the insulation door 1, it is only necessary to drive the valve 3 action, so that the vent pipe 11 communicates with the outside world through the first through hole. Under the action of the external atmospheric pressure, the outside air enters the vent pipe 11 and enters the inside of the refrigeration equipment box to achieve air pressure balance, thereby realizing air pressure inside and outside the box. balance.

By setting a ventilation pipe in the heat preservation door and setting a valve for switching the ventilation pipe on the handle, when the user opens the door, he drives the valve to open, so that the ventilation pipe communicates with the outside world. The ventilation pipe enters the door body to balance the pressure in the refrigeration equipment. When the door is opened, it meets the requirements of air pressure balance inside and outside the box, which is convenient for users to open the door to improve user experience.

Wherein, according to actual needs, the ventilation pipe 11 can be configured as follows:

1. The inner wall of the ventilation pipe 11 is provided with a hydrophobic coating (not shown in the figure). During actual use, the valve 3 is opened, the outside air enters the ventilation pipe 11, and the moisture contained in the outside air is pre-cooled to form condensed water. The hydrophobic coating on the inner wall of the vent pipe 11 can ensure that the condensed water is quickly discharged from the vent pipe 11 , preventing the condensed water from accumulating in the vent pipe 11 and blocking the vent pipe 11 .

2. The door lining 102 on the inner surface of the thermal insulation door is provided with an elastic air chamber 4 , and the second through hole communicates with the elastic air chamber 4 . Specifically, after the valve 3 is opened, the outside air fills the elastic air chamber 4 through the ventilation pipe 11, and the elastic air chamber 4 expands due to the air pressure, and the expanded elastic air chamber 4 will occupy the volume inside the refrigeration equipment box, so that the inside of the box body The volume becomes smaller, so as to achieve the air pressure balance inside and outside the box; and at the moment when the heat preservation door 1 is opened, under the action of the elastic force of the elastic air chamber 4 itself, the elastic air chamber 4 discharges the air inside it back through the ventilation pipe 11 to the The outside, so that the gas entering from the vent pipe 11 will not enter the interior of the refrigeration equipment, thereby preventing frost from occurring at the inner tube opening of the vent pipe 11. Preferably, the vent pipe 11 can be provided with molecular sieves as required. Wherein, the representation entity of the elastic air cavity 4 can adopt various structures. For example: an elastic film can be used, that is, an elastic film is arranged on the inner surface of the heat preservation door 1, and the edge of the elastic film is sealed on the inner surface of the heat preservation door 1, and the elastic film covers the The elastic film forms the elastic air cavity 4 at the inner nozzle of the ventilation tube 11 ; or, the inner nozzle of the ventilation tube 11 is connected with an elastic air bag, and the elastic air bag forms the elastic air cavity 4 . Preferably, in order to prevent the elastic air cavity 4 from being damaged due to contact with the items contained in the refrigeration equipment during inflation and expansion, a groove 12 is formed on the inner surface of the thermal insulation door 1, and the elastic air cavity 4 is located at the In the groove 12. Specifically, the elastic air chamber 4 is arranged in the groove 12, and the expansion process of the elastic air chamber 4 occurs in the groove 12, which minimizes the expansion of the elastic air chamber 4 and touches the items stored in the box body 1; The cavity 4 adopts an elastic film, and an elastic film is arranged on the surface where the groove 12 is connected with the mouth of the ventilation pipe 11. The edge of the elastic film is sealed on the groove 12, and the elastic film covers the housing. The inner tube opening, the elastic film forms the elastic air cavity 4; for the elastic air cavity 4, an elastic air bag is used, and the inner tube opening is connected with an elastic air bag. Further, in order to facilitate later maintenance, the inner surface of the heat preservation door 1 is provided with a pipe joint 13, one port of the pipe joint 13 is connected to the ventilation pipe 11, and the edge of the other port of the pipe joint 13 forms a There is an outer flange structure 131, the outer flange structure 131 is attached to the inner surface of the thermal insulation door 1, the outer flange structure 131 is provided with the elastic air chamber 4, and the pipe joint 13 It is detachably installed on the thermal insulation door 1, so as to facilitate installation and later maintenance.

In addition, the way of the valve 3 in this embodiment to switch the vent pipe 11 can adopt various forms, for example: the handle 2 is provided with a rotatable connecting rod, the connecting rod is provided with a sealing ball, and the sealing ball For the valve 3, the sealing ball is arranged opposite to the first through hole; when the connecting rod is not stressed, the sealing ball blocks the first through hole. Preferably, for the convenience of users, the handle 2 includes a base 21 and a rotating bracket 23, the base 21 is fixed on the housing 101, and the rotating bracket 23 is rotatably mounted on the base 21, so A return torsion spring 231 is also provided between the rotating bracket 23 and the base 21, the valve 3 adopts the structure of a sealing ball and is fixed on the rotating bracket 23, and the sealing ball is opposite to the second through hole. Setting; when the rotating bracket 23 is not stressed, the sealing ball blocks the first through hole to close the ventilation pipe. Specifically, the base 21 is also provided with an operation hole 211, and the bottom of the rotating bracket 23 is provided with a push handle 24 inserted into the operation hole 211. When the user opens the door, pulling the handle 2 will Press the handle 24 to apply an external force, and the rotating bracket 23 is driven to rotate by pressing the handle 24, so that the sealing ball is away from the first through hole. The handle 2 is also provided with a decorative cover 22, which is fixed on the base 21 and covers the rotating bracket 23, so as to improve the appearance of the product.

The utility model also discloses a refrigerating device comprising the above-mentioned door body with air pressure balancing function.

Specifically, the door body with air pressure balance function in this embodiment can adopt the door body with air pressure balance function in the embodiment of the door body with air pressure balance function of the utility model, and its specific structure can be referred to in the utility model. The embodiment of the door body with the balancing function and the descriptions in the accompanying drawings 1-3 will not be repeated here.

Compared with the prior art, the advantages and positive effects of the utility model are: by connecting the elastic air cavity on the ventilation pipe, in the actual use process, when the door body is opened under the condition of negative pressure inside the box body of the refrigeration equipment , the user drives the valve connected to the vent pipe to open by the handle, the outside air enters into the vent pipe, and due to the high external pressure, the gas entering the vent pipe fills the elastic air cavity and increases the volume of the elastic air cavity, thus making The internal volume of the box is reduced to achieve air pressure balance inside and outside the box, and after the door is opened, the elastic air cavity automatically resets under the action of its own elasticity to quickly discharge the air inside it to the outside. During the process of air pressure balance, the outside air It is confined in the elastic air cavity and finally re-discharged to the outside world, preventing the outside air from entering the box through the vent pipe, effectively avoiding the phenomenon of frosting caused by the outside gas entering the box through the vent pipe, and realizing the Under the requirements of air pressure balance inside and outside the box, reduce the frosting inside the box due to air pressure balance, so as to improve user performance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the embodiments of the present invention. and range.

Claims (10)

1. A door body with an air pressure balance function, characterized in that it comprises a thermal insulation door and a handle, the thermal insulation door comprises a shell and a door lining, an insulating layer is arranged between the shell and the door lining, and the thermal insulation A ventilation pipe is also arranged in the door, a first through hole is opened on the side wall of the casing, a second through hole is opened on the door lining, and the ventilation pipe is connected between the first through hole and the second through hole. Between the two through holes, the handle is provided with a valve for opening and closing the first through hole. 2. The door body with air pressure balance function according to claim 1, characterized in that, the inner wall of the ventilation pipe is provided with a hydrophobic coating. 3 . The door body with air pressure balance function according to claim 1 , wherein an elastic air chamber is provided on the door lining, and the second through hole communicates with the elastic air chamber. 4 . 4. The door body with air pressure balance function according to claim 3, characterized in that an elastic film is arranged on the inner surface of the heat preservation door, and the edge of the elastic film is sealed on the inner surface of the heat preservation door Above, the elastic film covers the inner nozzle of the ventilation tube, and the elastic film forms the elastic air cavity. 5 . The door body with air pressure balancing function according to claim 3 , wherein the second through hole has an elastic air bag, and the elastic air bag forms the elastic air cavity. 6 . 6. The door body with air pressure balance function according to claim 3, characterized in that, the second through hole is provided with a pipe joint, a port of the pipe joint is connected to the ventilation pipe, and the pipe joint An outer flange structure is formed on the edge of the other port, and the outer flange structure is attached to the inner surface of the heat preservation door, and the elastic air cavity is arranged on the outer flange structure. 7. The door body with air pressure balance function according to claim 1, characterized in that, the handle is provided with a rotatable connecting rod, and the connecting rod is provided with a sealing ball, and the sealing ball is the For the valve, the sealing ball is arranged opposite to the outer nozzle of the ventilation pipe; when the connecting rod is not stressed, the sealing ball blocks the outer nozzle of the ventilation pipe. 8. The door body with air pressure balance function according to claim 1, characterized in that, the handle includes a base and a rotating bracket, the base is fixed on the housing, and the rotating bracket is rotatably installed On the base, a reset torsion spring is also arranged between the rotating bracket and the base, and a sealing ball is arranged on the rotating bracket, and the sealing ball is the valve, and the sealing ball and the The second through hole is oppositely arranged; when the rotating bracket is not stressed, the sealing ball blocks the first through hole. 9. The door body with air pressure balancing function according to claim 8, characterized in that, the handle is also provided with a decorative cover, and the decorative cover is fixed on the base and covers the rotating bracket; An operation hole is also provided on the base, and a pressing handle inserted into the operation hole is provided at the bottom of the rotating bracket. 10. A refrigerating device, characterized in that it comprises the door body with air pressure balancing function according to any one of claims 1-9.