Inflatable door seal structure

Abstract

The utility model provides an inflatable door sealing strip structure which comprises a cabinet body, a cabinet door is hinged in the cabinet body, a door sealing strip is arranged on the inner side of the cabinet door, a door magnetic switch is arranged in the cabinet body, the door sealing strip is made of elastic materials, a bag cavity capable of containing air is arranged in the door sealing strip, an air pump is arranged in the cabinet door, and the air pump is connected with the cabinet door. The air pump can be used for inflating and exhausting air, an air nozzle of the air pump is connected with a bag cavity of the door seal strip, the door seal strip is electrically connected with the door magnetic switch, the door magnetic switch controls the air pump, and when a door is opened, the air pump exhausts air in the bag cavity, so that the door seal strip is shrunk, the thickness of the door seal strip is adjusted, and the phenomenon that the door is clamped by the door seal strip when the cabinet door is closed is avoided; after the cabinet door is closed, the door seal is inflated and expanded, so that the door seal is tightly attached to the cabinet body, and the heat insulation performance of the cabinet body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display cabinets and provides an inflatable door sealing strip structure. Background Art

[0002] Door seals are installed on the inner edges of the doors of refrigerators, display cabinets and other products. They are used to seal the cabinet to prevent air leakage after the cabinet is closed. Their reliability will directly affect the refrigeration performance of refrigerators, display cabinets and other products. Door seals are often stuck in the door during the closing process due to long-term backlog or sudden cold weather. The stuck door phenomenon will significantly affect the thermal insulation efficiency of the cabinet. In particular, the sealing strips on the hinge side are most likely to be stuck in the door. At present, the stuck door phenomenon is usually solved by applying silicone and heating plastic. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides an inflatable door seal structure, including a cabinet body, a cabinet door hinged in the cabinet body, a door seal is arranged on the inner side of the cabinet door, a door magnetic switch is arranged in the cabinet body, the door seal is made of elastic material, a bag cavity which can accommodate gas is arranged in the door seal, an air pump is arranged in the cabinet door, the air pump can inflate and exhaust air, the air nozzle of the air pump is connected with the bag cavity of the door seal, the door seal is electrically connected with the door magnetic switch, and the door magnetic switch controls the air pump to exhaust air when the door is opened and to inflate air when the door is closed.

[0004] Specifically, the cabinet door is a glass door, a profile is arranged at the edge of the cabinet door, a cavity is arranged in the profile, and the air pump is fixedly installed in the cavity.

[0005] Specifically, the air pump has an inflation port and an exhaust port, and an inflation pipe and an exhaust pipe are arranged in the middle position of the inner wall of the profile. One end of the inflation pipe and the exhaust pipe are connected to the bag cavity, and the other end is respectively connected to the inflation port and the exhaust port of the air pump.

[0006] Specifically, a magnetic stripe cavity and an air bag are arranged outside the bag cavity, a gas with a certain pressure is arranged in the air bag, the magnetic stripe is arranged in the magnetic stripe cavity, and the air bag is arranged flush with the magnetic stripe.

[0007] Specifically, there are four air pumps, which are arranged in the profiles on the four sides of the cabinet door.

[0008] Specifically, there is one air pump, which is arranged on one side of the hinge shaft of the cabinet door.

[0009] The beneficial effects of the utility model are:

[0010] The utility model provides an inflatable door seal structure. The door magnetic switch controls the air pump to inflate and exhaust air. When the cabinet door is opened, the door magnetic switch is disconnected, the air pump exhausts air outward, extracts the gas in the bag cavity, and the door seal shrinks; when the cabinet door is closed, the door magnetic switch is connected, the air pump inflates the bag cavity, the door seal inflates and expands, the cabinet door and the cabinet body are tightly combined, and the cabinet door is sealed. When the door is opened, the air pump extracts the gas in the bag cavity, shrinks the door seal, adjusts the thickness of the door seal, and solves the problem of the door seal being clamped when the cabinet door is closed. After the cabinet door is closed, the door seal inflates and expands, so that the door seal fits tightly with the cabinet body, thereby improving the thermal insulation performance of the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the assembly drawing of the cabinet door structure of the utility model;

[0012] Figure 2 It is an enlarged view of a part A of the cabinet door structure of the utility model;

[0013] Figure 3 This is a cross-sectional view of the cabinet door profile of the present invention.

[0014] Figure numerals: 1, cabinet door; 11, profile; 12, inflation duct; 13, exhaust duct; 2, door seal; 21, bag cavity; 22, air bag; 23, magnetic strip; 24, magnetic strip cavity; 3, air pump; 31, inflation port; 32, exhaust port. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solution of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] like Figure 1-Figure 3 As shown, an inflatable door seal structure is suitable for display cabinets, refrigerators, etc., including a cabinet body, a cabinet door 1 hinged in the cabinet body, a door seal 2 is arranged on the inner side of the cabinet door 1, a door magnetic switch is arranged in the cabinet body, the door seal 2 is made of elastic material, a bag cavity 21 capable of accommodating gas is arranged in the door seal 2, an air pump 3 is arranged in the cabinet door 1, the air pump 3 can be inflated and deflated, the air nozzle of the air pump 3 is connected with the bag cavity 21 of the door seal 2, the door seal 2 is electrically connected with the door magnetic switch, when opening and closing the door, the air pump 3 is controlled by the door magnetic switch to deflat when opening the door and to inflate when closing the door, the door seal 2 contracts after opening the door and expands after closing the door to avoid the door clamping phenomenon.

[0017] The door seal 2 is made of elastic material such as soft polyvinyl chloride, and a gas-containing cavity 21 is provided inside the door seal 2. The cavity 21 can be an integrated connected type or a segmented type. A magnetic strip cavity 24 and an air bag 22 are provided outside the cavity 21. A gas with a certain pressure is provided inside the air bag 22. A magnetic strip 23 is provided in the magnetic strip cavity 24, and the air bag 22 is flush with the magnetic strip 23.

[0018] As a preferred embodiment of the utility model, the sealing strip structure is suitable for a display cabinet, the cabinet door 1 is a glass door, and a profile 11 is arranged around the edge of the cabinet door 1, the cabinet door profile 11 is assembled and connected to the outside air, a cavity is arranged in the profile 11, an electric air pump 3 is fixedly installed in the cavity, the air pump 3 can be inflated and exhausted, the air pump 3 has an inflation port 31 and an exhaust port 32, an inflation pipe 12 and an exhaust pipe 13 are arranged in the middle position of the inner wall of the profile 11, the inflation pipe 12 is made of hard material such as plastic or metal, one end of the inflation pipe 12 and the exhaust pipe 13 are connected to the bag cavity 21, and the other end is respectively connected to the inflation port 31 and the exhaust port 32 of the air pump 3. When inflating, the air pump 3 absorbs air and fills it into the bag cavity 21 through the inflation pipe 12. When exhausting, the exhaust pipe 13 of the air pump 3 absorbs gas from the bag cavity 21 and discharges it into the profile 11, and flows to the outside through the gap of the profile 11.

[0019] The number of air pumps 3 can be freely selected according to the type of door seal 2 and the use requirements. If the bladder cavity 21 is an integrated and connected type, the number of air pumps 3 can be one or more. In order to improve the efficiency of inflation and degassing and the uniformity of the air volume in the bladder cavity 21, an air pump 3 can be set in each of the profiles 11 on the four sides of the cabinet door 1. In addition, if the bladder cavity 21 is a segmented type, an air pump 3 can be set in each of the profiles 11 on the four sides, or an air pump 3 can be set only on one side of the hinge axis. Since the door clamping phenomenon is most likely to occur on one side of the hinge axis when opening and closing, timely extraction of gas when opening can effectively solve the door clamping phenomenon.

[0020] A door magnetic switch is provided in the cabinet body, and the position of the door magnetic switch matches the position of the magnetic strip 23. The door magnetic switch is electrically connected to the air pump 3 to control the inflation and exhaust of the air pump 3. When the cabinet door 1 is opened, the door magnetic switch is disconnected to control the air pump 3 to exhaust air outwards, extract the gas in the bag cavity 21, and shrink the door seal 2; when the cabinet door 1 is closed, the door magnetic switch is connected to control the air pump 3 to inflate the bag cavity 21, and the door seal 2 is inflated and expanded, so that the cabinet door 1 is tightly combined with the cabinet body to seal the cabinet door 1.

[0021] After the cabinet door 1 is opened, the air pump 3 draws out the gas in the bag cavity 21, causing the door seal 2 to shrink and adjusting the thickness of the door seal 2, thereby solving the problem of the door seal 2 being clamped when the cabinet door 1 is closed. After the cabinet door 1 is closed, the door seal 2 is inflated to make the door seal 2 fit tightly against the cabinet body, thereby improving the thermal insulation performance of the cabinet body.

[0022] The above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An inflatable door seal structure, comprising a cabinet, a cabinet door (1) hinged in the cabinet, a door seal (2) arranged on the inner side of the cabinet door (1), a door magnetic switch arranged in the cabinet, the door seal (2) being made of elastic material, characterized in that: A bag cavity (21) capable of containing gas is arranged in the door seal (2), and an air pump (3) is arranged in the cabinet door (1). The air pump (3) can inflate and exhaust air. The air nozzle of the air pump (3) is connected to the bag cavity (21) of the door seal (2). The door seal (2) is electrically connected to a door magnetic switch. The door magnetic switch controls the air pump (3) to exhaust air when the door is opened and to inflate air when the door is closed.

2. The inflatable door seal structure according to claim 1, characterized in that: The cabinet door (1) is a glass door, a profile (11) is arranged at the edge of the cabinet door (1), a cavity is arranged inside the profile (11), and the air pump (3) is fixedly installed in the cavity.

3. The inflatable door seal structure according to claim 1, characterized in that: The air pump (3) has an inflation port (31) and an exhaust port (32), and an inflation pipe (12) and an exhaust pipe (13) are arranged in the middle of the inner wall of the profile (11); one end of the inflation pipe (12) and the exhaust pipe (13) are connected to the bag cavity (21), and the other end is connected to the inflation port (31) and the exhaust port (32) of the air pump (3) respectively.

4. The inflatable door seal structure according to claim 1, characterized in that: A magnetic stripe cavity (24) and an air bag (22) are arranged outside the capsule cavity (21), a gas with a certain pressure is arranged in the air bag (22), a magnetic stripe (23) is arranged in the magnetic stripe cavity (24), and the air bag (22) and the magnetic stripe (23) are arranged flush with each other.

5. The inflatable door seal structure according to claim 2, characterized in that: There are four air pumps (3) arranged in the profiles (11) on the four sides of the cabinet door (1).

6. The inflatable door seal structure according to claim 2, characterized in that: There is one air pump (3) which is arranged on one side of the hinge shaft of the cabinet door (1).

Images