A gap seal, a door and a method of sealing a door gap

Abstract

This invention discloses a gap sealing strip, belonging to the technical field of sealing devices. It includes an upper suction strip located on one side of the gap, capable of elastically extending and retracting along the opposite side of the gap. The upper suction strip is connected to a magnetic attraction mechanism, which includes a first magnetic attraction device disposed within the upper suction strip and a second magnetic attraction device disposed on the opposite side of the upper suction strip. When the first and second magnetic attraction devices are aligned, the resulting magnetic force pulls the upper suction strip forward, causing it to extend tightly against the other side of the gap to seal it. When the second magnetic attraction device is aligned with the first magnetic attraction device, a magnetic force is generated between them. Because the first magnetic attraction device is located within the upper suction strip, this magnetic force can pull the upper suction strip forward, thus tightly adhering it to the other side of the gap, achieving a sealing effect between the door and the floor. Even if the gap size changes, the elastic extension of the upper suction strip ensures good gap sealing.

Description

Technical Field

[0001] This invention belongs to the field of sealing device technology, specifically, it relates to a gap sealing, a door, and a door gap sealing method. Background Technology

[0002] Advances in sound insulation technology have enabled people to escape noise and enjoy a quiet living environment. Currently, sound insulation materials are widely used in all aspects of life. As people's pursuit of quality of life continues to rise, they are paying more and more attention to the sound insulation effect of their rooms. Door gaps have a significant impact on sound insulation. Currently, most methods involve placing barriers at door gaps, such as rubber gaskets between the door and the floor, to seal the gap. However, over time, doors may deform, causing the gap between the door and the door frame or floor to narrow or widen. If the gap narrows, the friction between the rubber gasket and the door frame or floor increases, causing the door to jam when closed. If the gap widens, it leads to a poor seal and inadequate sound insulation. Summary of the Invention

[0003] 1. The problem to be solved

[0004] To address the technical problem of poor sealing effect caused by changes in gap size in existing technologies, this invention provides a gap sealing, door and door gap sealing method, which solves the above-mentioned technical problem by adjusting the elastic extension and retraction of the upper suction strip through a magnetic suction mechanism.

[0005] 2. Technical Solution

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A gap sealing strip includes an upper suction strip located on one side of the gap. The upper suction strip is elastically extendable and retractable along the opposite side of the gap. The upper suction strip is connected to a magnetic suction mechanism, which includes a first magnetic suction device disposed within the upper suction strip and a second magnetic suction device disposed on the opposite side of the upper suction strip. When the first and second magnetic suction devices are aligned, the magnetic force generated pulls the upper suction strip to extend forward and fit tightly against the other side of the gap, thus sealing the gap. When the second magnetic suction device is aligned with the first magnetic suction device, a magnetic force is generated between the two devices. Because the first magnetic suction device is located within the upper suction strip, this magnetic force can pull the upper suction strip to extend forward, thus fitting tightly against the other side of the gap, achieving a sealing effect between the door and the floor. Even if the gap size changes, the elastic extension of the upper suction strip ensures good gap sealing.

[0008] Furthermore, the first magnetic attraction device includes a first magnetic strip and a second magnetic strip, the first magnetic strip and the second magnetic strip are parallel and have opposite magnetic poles.

[0009] Furthermore, the second magnetic suction device includes a third magnetic strip and a fourth magnetic strip. The third magnetic strip is directly opposite the first magnetic strip, and the fourth magnetic strip is directly opposite the second magnetic strip. The third and fourth magnetic strips are parallel and their spacing is equal to the spacing between the first and second magnetic strips. When used at a door gap, as the door is about to close, the upper suction strip at the bottom of the door, driven by the door, causes the second and fourth magnetic strips to approach each other first. Since the second and fourth magnetic strips have the same magnetic poles, they generate a repulsive force as they approach each other. Under this repulsive force, the upper suction strip contracts in the opposite direction, further widening the gap between the door and the other side of the gap. This increased gap facilitates better door closing, and even if the door deforms due to long-term use, it will not jam when closing.

[0010] Preferably, the upper suction strip has an inner cavity, and the first magnetic suction device is fixed at the bottom of the inner cavity.

[0011] Preferably, it includes a lower suction strip, which is located on the opposite side of the upper suction strip, and the second magnetic suction device is fixedly connected inside it.

[0012] Furthermore, the lower suction strip has a smooth surface facing the upper suction strip, and a metal rod is detachably connected to its bottom, with one end of the metal rod fixed to the wall. The smooth surface of the lower suction strip allows for better cooperation with the upper suction strip, resulting in a better seal.

[0013] A door includes a door frame, and the gap between the door and the door frame is provided with the aforementioned gap sealing strip.

[0014] Preferably, a suction strip is attached to the outer periphery of the side of the door, and a lower suction strip is fixed at a corresponding position on the door frame.

[0015] A door gap sealing method includes a gap sealing strip disposed at the door gap, the gap sealing strip including an upper suction strip and a lower suction strip, the upper suction strip and the lower suction strip being fixed on both sides of the door gap.

[0016] Further, door gap sealing methods include

[0017] S1: When the door moves the upper suction strip closer to the lower suction strip, a repulsive force is generated between the upper and lower suction strips. The upper suction strip is affected by the repulsive force and contracts in the opposite direction, widening the vertical gap between the upper and lower suction strips.

[0018] S2: After the door is fully closed, the upper and lower suction strips are aligned and a magnetic attraction is generated between them. Under the influence of the magnetic attraction, the upper suction strip extends forward and sticks tightly to the lower suction strip to seal the door gap. Attached Figure Description

[0019] Figure 1 A schematic diagram showing the application of a gap sealing strip to the outer perimeter of a door edge;

[0020] Figure 2 This is a schematic diagram showing the adsorption process of the upper and lower suction strips;

[0021] Figure 3 This is a schematic diagram showing the upper and lower suction strips when they are close together.

[0022] In the picture:

[0023] 100. Sealing strip for gaps; 200. Door; 300. Gap;

[0024] 110. Magnetic attraction mechanism; 111. First magnetic attraction device; 111a. First magnetic strip; 111b. Second magnetic strip;

[0025] 112. Second magnetic attraction device; 112a. Third magnetic strip; 112b. Fourth magnetic strip;

[0026] 120. Upper suction strip; 121. Inner cavity;

[0027] 130. Lower suction strip;

[0028] 140. Metal rod;

[0029] 210. Door frame (floor). Detailed Implementation

[0030] The following detailed description of exemplary embodiments of the invention is taken with reference to the accompanying drawings, which form part of the description and illustrate exemplary embodiments in which the invention may be practiced. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be implemented and various changes may be made to the invention without departing from the spirit and scope thereof. The more detailed description of embodiments of the invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and not restrictive of the description of the features and characteristics of the invention, to suggest the best mode for carrying out the invention, and is sufficient to enable those skilled in the art to practice the invention. Therefore, the scope of the invention is defined only by the appended claims.

[0031] Example 1

[0032] like Figure 1As shown, a gap sealing strip 100 includes an upper suction strip 120 and a lower suction strip 130. The upper suction strip 120 is an elastic strip made of a thin, elongated elastic material, such as rubber, latex, or plastic, allowing it to elastically expand and contract along the opposite side (forward) of the gap 300. When the upper suction strip 120 and the lower suction strip 130 are pressed together by the magnetic suction mechanism 110, they effectively seal the gap 300. The upper suction strip 120 is generally installed on the side of the door 200, and the lower suction strip 130 is installed on the opposite side of the gap 300 corresponding to the upper suction strip 120, such as when the lower suction strip 130 is installed on the door frame 210 at the door gap (when sealing the gap 300 between the floor 210 and the door 200, the door frame 210 can also be understood as the floor 210).

[0033] Taking the gap 300 between door 200 and floor 210 as an example. The upper suction strip 120 is attached to the outer periphery of the side of door 200. The length of the upper suction strip 120 is the same as the length of the bottom of door 200, and the width of the upper suction strip 120 is the same as or slightly less than the thickness of door 200, so that the upper suction strip 120 can completely fit or wrap around the outer periphery of the bottom of door 200. The upper suction strip 120 has an inner cavity 121 that extends along the length of the main strip. A magnetic suction mechanism 110 is placed in the inner cavity 121. The lower suction strip 130 is made of plastic, rubber, or silicone. The length of the lower suction strip 130 is the same as the upper suction strip 120, and its width can be greater or less than the upper suction strip 120. Preferably, the width of the lower suction strip 130 is longer than the width of the upper suction strip 120, so that the upper suction strip 120 can more easily fit with the lower suction strip 130.

[0034] The magnetic attraction mechanism 110 includes a first magnetic attraction device 111 disposed in the inner cavity 121. The first magnetic attraction device 111 includes a magnetic strip distributed along the length of the inner cavity 121, and the magnetic strip is fixed to the upper attraction strip 120. The magnetic strip can be a long continuous magnetic block or several magnetic blocks arranged in a uniform straight line to form the magnetic strip. The magnetic attraction mechanism 110 includes a second magnetic attraction device 112 fixed in the lower attraction strip 130. The second magnetic attraction device 112 includes the same magnetic strip as the first magnetic attraction device 111, or it can be an iron block, as long as it can generate a magnetic attraction force with the first magnetic attraction device 111. When the second magnetic attraction device 112 is directly opposite the first magnetic attraction device 111, the first magnetic attraction device 111 can generate a magnetic attraction force with the second magnetic attraction device 112. Under the action of the magnetic attraction, the first magnetic attraction device 111 pulls the upper suction strip 120 to extend in the forward direction (forward direction: extending towards the lower suction strip 130 on the other side of the gap 300), and then the upper suction strip 120 is tightly attached to the lower suction strip 130, thereby achieving the effect of sealing the gap 300 between the door 200 and the floor 210.

[0035] like Figure 2 and Figure 3 As shown, the first magnetic suction device 111 includes a first magnetic strip 111a and a second magnetic strip 111b, which are fixed parallel to each other inside the inner cavity 121 (note that they cannot be fixed to the door 200). The magnetic poles of the first magnetic strip 111a and the second magnetic strip 111b are different. The lower suction strip 130 is provided with a third magnetic strip 112a and a fourth magnetic strip 112b. When the door 200 is closed, the third magnetic strip 112a is directly opposite the position of the first magnetic strip 111a. The fourth magnetic strip 112b is directly opposite the position of the second magnetic strip 111b (taking the gap 300 between the door 200 and the floor 210 as an example, when the door 200 is closed, the third magnetic strip 112a is located directly below the first magnetic strip 111a, and the fourth magnetic strip 112b is located directly below the second magnetic strip 111b). The third magnetic strip 112a has the opposite magnetic pole to the first magnetic strip 111a, and the fourth magnetic strip 112b has the opposite magnetic pole to the second magnetic strip 111b. For example, the first magnetic strip 111a is the N pole, the second magnetic strip 111b is the S pole, the third magnetic strip 112a is the S pole, and the fourth magnetic strip 112b is the N pole. The above structure has two advantages. Advantage 1: When the door 200 is about to close, the upper suction strip 120 at the bottom of the door 200 moves closer to the lower suction strip 130 under the action of the door 200. The second magnetic strip 111b on the upper suction strip 120 and the fourth magnetic strip 112b on the lower suction strip 130 approach each other first. Since the magnetic poles of the second magnetic strip 111b and the fourth magnetic strip 112b are the same, after they approach each other, a repulsive force will be generated between the second magnetic strip 111b and the fourth magnetic strip 112b. Under the action of this repulsive force, the upper suction strip 120 contracts in the opposite direction (reverse direction: away from the direction of the lower suction strip 130), which widens the gap between the upper suction strip 120 and the lower suction strip 130. The widened gap makes it easier for the door 200 to complete the closing action better. Even if the door 200 is deformed due to long-term use, it will not get stuck when closing the door 200. Advantage 2: When the door 200 is fully closed, the first magnetic strip 111a and the third magnetic strip 112a attract each other due to their opposite magnetic poles, and the second magnetic strip 111b and the fourth magnetic strip 112b attract each other due to their opposite magnetic poles, thereby generating a magnetic attraction force. This magnetic attraction force pulls the upper suction strip 120 to extend in the positive direction, thereby making the upper suction strip 120 tightly adhere to the lower suction strip 130, achieving the purpose of sealing the door gap.

[0036] Preferably, the upper suction strip 120 and the lower suction strip 130 have rounded corners or chamfers on both sides, which have a guiding function, making it easier for the door 200 to close.

[0037] Example 2

[0038] The lower suction strip 130 can have various structures, and different structures of the lower suction strip 130 have different advantages.

[0039] The first structure is the same as the upper suction strip 120, made of elastic material, and has the ability to extend and retract vertically. The advantage of this structure is that both the upper suction strip 120 and the lower suction strip 130 can achieve elastic extension and retraction, making it convenient for use in areas with larger gaps 300.

[0040] Structure two involves a lower suction strip 130 made of a non-stretchable material, such as solid hard plastic, solid hard rubber, or solid silicone. The surface of the lower suction strip 130 facing the upper suction strip 120 is smooth for better sealing. A clip is fixed to the bottom of the lower suction strip 130, and the clip is inserted into one end of the metal rod 140. The other end of the metal rod 140 is fixed inside the floor 210 (or wall). The lower suction strip 130 is detachably connected to the metal rod 140 for easy replacement after wear.

[0041] Structure three eliminates the use of the lower magnetic strip 130. Instead, the second magnetic device 112 of the magnetic attraction mechanism 110 is embedded inside the wall or floor 210, allowing the second magnetic device 112 to generate magnetic attraction with the first magnetic device 111 inside the upper magnetic strip 120. This structure, by eliminating the lower magnetic strip 130, avoids wear and tear on it, resulting in a longer service life. Furthermore, the device cost is lower. The disadvantage is that if the wall surface is not smooth, the sealing effect may be poor. A specific implementation of structure three is provided below. The second magnetic attraction mechanism 110 includes a third magnetic strip 112a and a fourth magnetic strip 112b. The third magnetic strip 112a and the fourth magnetic strip 112b are respectively embedded inside the floor 210. The third magnetic strip 112a and the fourth magnetic strip 112b are located directly below the first magnetic strip 111a and the second magnetic strip 111b (when the door 200 is closed). The third magnetic strip 112a has opposite poles to the first magnetic strip 111a, and the fourth magnetic strip 112b has opposite poles to the second magnetic strip 111b.

[0042] Example 3

[0043] like Figure 3 As shown, a door 200 includes a door 200 and a door frame 210. A gap sealing strip 100 is provided at the gap 300 between the door 200 and the door frame 210. A suction strip 120 is attached to the outer periphery of the side of the door 200, and a lower suction strip 130 is fixed at a corresponding position on the door frame 210. The installation positions of the upper suction strip 120 and the lower suction strip 130 can be interchanged. Specifically, the lower suction strip 130 is installed on the door 200, and the upper suction strip 120 is installed on the door frame 210, while other structural elements remain unchanged.

[0044] A door gap sealing method includes a gap sealing strip 100 disposed at the door gap. The gap sealing strip 100 includes an upper suction strip 120 and a lower suction strip 130, which are fixed to both sides of the door gap. The door gap sealing method includes S1: when the door 200 moves the upper suction strip 120 closer to the lower suction strip 130, a repulsive force is generated between the upper suction strip 120 and the lower suction strip 130. Under the influence of the repulsive force, the upper suction strip 120 contracts in the opposite direction, widening the vertical gap 300 between the upper suction strip 120 and the lower suction strip 130; S2: after the door 200 is fully closed, the upper suction strip 120 and the lower suction strip 130 are positioned directly opposite each other, and a magnetic attraction force is generated between them. Under the influence of the magnetic attraction force, the upper suction strip 120 extends forward and adheres tightly to the lower suction strip 130 to seal the door gap.

[0045] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A gap sealing strip, comprising an upper suction strip (120) located on one side of a gap (300), characterized in that, The upper suction strip (120) can elastically extend and retract along the opposite side of the gap (300); the upper suction strip (120) is connected to a magnetic suction mechanism (110), the magnetic suction mechanism (110) includes a first magnetic suction device (111) disposed in the upper suction strip (120) and a second magnetic suction device (112) disposed on the opposite side of the upper suction strip (120). When the first magnetic suction device (111) and the second magnetic suction device (112) are facing each other, the magnetic suction force generated pulls the upper suction strip (120) to extend in the positive direction and fit tightly against the other side of the gap (300) to seal the gap (300). The first magnetic attraction device (111) includes a first magnetic strip (111 a) and a second magnetic strip (111 b), the first magnetic strip (111 a) and the second magnetic strip (111 b) are parallel and have opposite magnetic poles; The second magnetic attraction device (112) includes a third magnetic strip (112a) and a fourth magnetic strip (112b). The third magnetic strip (112a) is directly opposite the first magnetic strip (111a), and the fourth magnetic strip (112b) is directly opposite the second magnetic strip (111b). The third magnetic strip (112a) and the fourth magnetic strip (112b) are parallel and their spacing is equal to the spacing between the first magnetic strip (111a) and the second magnetic strip (111b). The lower suction bar (130) is located on the opposite side of the upper suction bar (120), and the second magnetic suction device (112) is fixedly connected inside it.

2. The gap sealing strip according to claim 1, characterized in that, The upper suction strip (120) has an inner cavity (121), and the first magnetic suction device (111) is fixed at the bottom of the inner cavity (121).

3. The gap sealing strip according to claim 1, characterized in that, The lower suction strip (130) has a smooth surface facing the upper suction strip (120), and its bottom is detachably connected to a metal rod (140), one end of which is fixed to the wall.

4. A door (200), comprising a door frame (210), characterized in that, The gap (300) between the door (200) and the door (200) frame is provided with a gap sealing strip (100) as described in any one of claims 1 to 3.

5. The door (200) according to claim 4, characterized in that, A suction strip (120) is attached to the outer periphery of the side of the door (200), and a lower suction strip (130) is fixed at the corresponding position on the door (200) frame.

6. A method for sealing door gaps, characterized in that, Includes a gap sealing strip (100) as described in any one of claims 1-3 provided at the door gap, the gap sealing strip (100) including an upper suction strip (120) and a lower suction strip (130), the upper suction strip (120) and the lower suction strip (130) being fixed on both sides of the door gap.

7. The door gap sealing method according to claim 6, characterized in that, include S1: When the door (200) moves the upper suction strip (120) closer to the lower suction strip (130), a repulsive force is generated between the upper suction strip (120) and the lower suction strip (130). The upper suction strip (120) is affected by the repulsive force and contracts in the opposite direction, expanding the vertical gap (300) between the upper suction strip (120) and the lower suction strip (130). S2: After the door (200) is fully closed, the upper suction strip (120) and the lower suction strip (130) are in the same position and a magnetic attraction is generated between them. Under the influence of the magnetic attraction, the upper suction strip (120) extends forward and sticks tightly to the lower suction strip (130) to seal the door gap.

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