Invisible door seal

Abstract

A invisible door gap sealing device, a sealing strip is installed on a movable device, a groove of the movable device is fixed on the ground just below the door closing position, the top surface of the groove is not higher than the ground, a long groove is opened on the top surface of the groove, a movable rod can be movably arranged in the long groove in the vertical direction, one end of the movable rod is hinged to the inner wall of the groove at one end of the long groove, and the other end is a free end, and a limit plate is installed on the lower surface of the movable rod; the movable rod is connected to the bottom of the groove through an elastic device; the upper surface of the free end of the movable rod has a section that can match the bottom surface of the door when the door is closed, a first suction device is provided on the section, and a second suction device is provided at the part of the door bottom opposite to the first suction device; the end surfaces of the free ends of the movable rods of multiple movable devices are all connected to the sealing strip. The present invention can achieve sealing when the door is closed, can be invisible when the door is opened, is safe and beautiful, has good sealing effect, is easy to install, and has a long service life.

Description

Technical Field

[0001] The invention relates to an invisible door gap sealing device. Background Art

[0002] In daily life, considering that the movement of the door will cause friction with the ground, long-term use will cause damage to the door and the ground, so there is usually a gap between the door and the ground. Due to the existence of the door gap, the room cannot be well isolated from the outside world, and the outside world is more likely to disturb the indoor residents. For example, the outside noise, odor or dust can easily enter the room through the door gap, which will cause a certain degree of interference to the indoor residents and affect their daily life; the cold air and sound in the room will also be more easily transmitted to the outside world through the door gap, which will cause trouble to the residents and ultimately fail to provide users with a comfortable home experience.

[0003] The main door gap sealing devices on sale in the market are door gap sealing strips and thresholds. The former has the following disadvantages: 1. The door gap sealing strip is mainly installed at the bottom of the door, which affects the indoor and outdoor appearance; 2. Every time the door is opened and closed, it will rub against the ground, and it is easy to shift and damage the wooden floor and decorative floor; 3. The service life of the door gap sealing strip is short. Since it is installed at the bottom of the door, the door gap is sealed by reducing the gap between the door and the ground. The door will rub against the ground when opening and closing the door, and the door gap sealing strip is easy to be damaged and needs to be replaced frequently. The disadvantage of the latter is that it is very easy to trip the user. Since this door stopper protrudes from the ground or door panel when installed, when pedestrians walk by, it is easy to cause accidental tripping, especially when infants and young children are crawling or playing indoors, the protrusions are easy to cause bumps and injuries to infants and young children. Therefore, the existing thresholds have great hidden dangers.

[0004] With the progress of society, people's daily life has higher and higher requirements for door gap sealing. Most of the door gap sealing devices on the market now have limitations. Most of them are just for appearance modification and are only installed on the ground or at the bottom of the door, which affects the appearance and service life. Therefore, it is necessary to provide an invisible door gap sealing device that can seal the door gap. When the door is open, it can be completely hidden in the ground, and only fit with the door when the door is closed, which can solve the above problems.

[0005] Chinese patent CN104963615B discloses a door gap sealing device, including a housing, a driving assembly and a sealing strip both arranged in the housing. The sealing strip is retracted into the housing when the door is opened, and will not form a ground obstacle to cause danger to the residents; when the door is closed, the door gap is filled to achieve a sealing effect, and will not cause damage to the door and the ground, and can form a good isolation between the room and the outside world. However, the door gap sealing device has the following shortcomings: it is installed at the bottom of the door, and the door needs to be disassembled during installation; automatic sealing is achieved by the pressure of the door frame on the protruding part of the driving assembly when the door is closed, and long-term use will cause damage to the door frame. Summary of the invention

[0006] The present invention aims to overcome the above-mentioned defects of the prior art and provide a safe, good sealing effect, easy installation and long service life invisible door gap sealing device. The invisible door gap sealing device has two states: when the door is closed, it is automatically sealed; when the door is opened, it is automatically invisible.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] An invisible door gap sealing device is installed below the ground directly below the closed position of the door 7, comprising a sealing strip 2 and a movable device for blocking the door gap, the sealing strip 2 is installed on the movable device, and a plurality of movable devices are installed according to the size of the door, the movable device comprising a movable rod 1, an elastic device 3, a first suction device 4, a second suction device 5, a groove 6, a rotating shaft 8 and a limiting plate 9;

[0009] The groove 6 is fixed on the ground just below the closed position of the door 7. The top surface of the groove 6 is not higher than the ground. A long groove is opened on the top surface of the groove 6. The movable rod 1 can be movably arranged in the long groove in the vertical direction. One end of the movable rod 1 is hinged to the inner wall of the groove 6 at one end of the long groove through a rotating shaft 8, and the other end of the movable rod 1 is a free end. A limiting plate 9 is installed on the lower surface of the movable rod 1, and the limiting plate 9 abuts against the groove 6 to limit the lifting distance of the free end of the movable rod 1; the movable rod 1 is connected to the bottom of the groove 6 through an elastic device 3; the upper surface of the free end of the movable rod 1 has a section that can coincide with the bottom surface of the door 7 when the door is closed, and a first suction device 4 is provided on the section, and a second suction device 5 is provided at the part of the bottom of the door 7 opposite to the first suction device 4; the end surfaces of the free ends of the movable rods 1 of multiple movable devices are all connected to the sealing strip 2.

[0010] Preferably, the sealing strip 2 is made of rubber or PVC.

[0011] Preferably, the elastic device 3 is a tension spring or a pneumatic device.

[0012] Preferably, the first attraction device 4 and the second attraction device 5 are a pair of oppositely oriented magnets.

[0013] Preferably, there are seven movable devices.

[0014] The beneficial effects of the present invention are: 1. The sealing device can be completely invisible when not in use, which is safe and beautiful; 2. It is fully automatic and has a good sealing effect; 3. It is easy to install without disassembling the door; 4. It will not damage the floor due to friction between the opening and closing of the door and the floor or decorative floor, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the invisible door gap sealing device;

[0016] Figure 2 It is a schematic diagram of the structure of a movable device when the door is closed;

[0017] Figure 3 It is a schematic diagram of the structure of a movable device when the door is opened;

[0018] Figure 4 It is a schematic diagram of the structure of multiple movable devices when the door is closed;

[0019] Figure 5 It is a schematic diagram of the structure of multiple movable devices when the door is opened. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] An invisible door gap sealing device is installed below the ground directly below the closed position of the door 7, comprising a sealing strip 2 and a movable device for blocking the door gap, the sealing strip 2 is installed on the movable device, and a plurality of movable devices are installed according to the size of the door, the movable device comprising a movable rod 1, an elastic device 3, a first suction device 4, a second suction device 5, a groove 6, a rotating shaft 8 and a limiting plate 9;

[0022] The groove 6 is fixed on the ground just below the closed position of the door 7. The top surface of the groove 6 is not higher than the ground. A long groove is opened on the top surface of the groove 6. The movable rod 1 can be movably arranged in the long groove in the vertical direction. One end of the movable rod 1 is hinged to the inner wall of the groove 6 at one end of the long groove through a rotating shaft 8, and the other end of the movable rod 1 is a free end. A limiting plate 9 is installed on the lower surface of the movable rod 1, and the limiting plate 9 abuts against the groove 6 to limit the lifting distance of the free end of the movable rod 1; the movable rod 1 is connected to the bottom of the groove 6 through an elastic device 3; the upper surface of the free end of the movable rod 1 has a section that can coincide with the bottom surface of the door 7 when the door is closed, and a first suction device 4 is provided on the section, and a second suction device 5 is provided at the part of the bottom of the door 7 opposite to the first suction device 4; the end surfaces of the free ends of the movable rods 1 of multiple movable devices are all connected to the sealing strip 2.

[0023] The sealing strip 2 is a rubber or PVC leather strip, the elastic device 3 is a tension spring or an air pressure device, the first suction device 4 and the second suction device 5 are a pair of magnets with opposite magnetic poles, and there are seven movable devices.

[0024] The process of the invisible door sealing device of the present invention to achieve sealing when the door is closed and invisible when the door is opened is as follows: when the door is closed, the suction of the suction device 5 controls the multiple movable rods 1 to be pulled out from the groove 6, driving the sealing strip 2 to fit the bottom of the door to achieve sealing; when the door is opened, the elastic device 3 automatically pulls the sealing strip 2 back to the groove 6 to achieve invisibility. In addition, the groove 6 can be covered with a material close to the ground, such as a wooden board or plastic, so that the invisible door sealing device of the present invention is completely hidden underground and is no different from the ground.

[0025] This embodiment is only used to illustrate the technical solution of the present invention, rather than to limit the protection scope of the present invention. Ordinary technicians in this field can make various changes without departing from the conceptual scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The protection scope of the present invention should be defined by the claims.

Claims

1. An invisible door gap sealing device, comprising a sealing strip (2) and a movable device, characterized in that: Installed below the ground directly below the closed position of the door (7), the sealing strip (2) is installed on a movable device, the movable device comprising a movable rod (1), an elastic device (3), a first suction device (4), a second suction device (5), a groove (6), a rotating shaft (8) and a limiting plate (9); The groove (6) is fixed on the ground directly below the closed position of the door (7). The top surface of the groove (6) is not higher than the ground. The top surface of the groove (6) is provided with a long groove. The movable rod (1) can be movably arranged in the long groove in the vertical direction. One end of the movable rod (1) is hinged to the inner wall of the groove (6) at one end of the long groove through a rotating shaft (8). The other end of the movable rod (1) is a free end. A limiting plate (9) is installed on the lower surface of the movable rod (1). The limiting plate (9) contacts the groove (6) to limit the lifting distance of the free end of the movable rod (1). The movable rod (1) is connected to the bottom of the groove (6) through an elastic device (3). The upper surface of the free end of the movable rod (1) has a cut surface that can match the bottom surface of the door (7) when the door is closed. The cut surface is provided with a first suction device (4). The bottom of the door (7) opposite to the first suction device (4) is provided with a second suction device (5). The end surfaces of the free ends of the movable rods (1) of the plurality of movable devices are all connected to the sealing strip (2).

2. The invisible door gap sealing device according to claim 1, characterized in that: The sealing strip (2) is a rubber or PVC leather strip.

3. The invisible door gap sealing device according to claim 1, characterized in that: The elastic device (3) is a tension spring or a pneumatic device.

4. The invisible door gap sealing device according to claim 1, characterized in that: The first attraction device (4) and the second attraction device (5) are a pair of magnets with opposite magnetic poles.

5. The invisible door gap sealing device according to claim 1, characterized in that: There are seven movable devices.

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