A sealing structure for a door closing gap and a door assembly

Abstract

The present invention discloses a sealing structure for a closing gap and a door assembly. Among them, the sealing structure includes a first sealing unit, and the first sealing unit is installed on one of the door frame and the door leaf. The first sealing unit includes an elastic member and a sealing member, and the elastic member is connected to the sealing member. At least one of the other of the door frame and the door leaf and the sealing member is provided with a magnetic attraction component. When the door leaf is in the open state, the sealing member is in a retracted state under the action of the elastic member. When the door leaf is in the closed state, the other of the door frame and the door leaf and the sealing member can be magnetically attached, and the sealing member is in an extended state. The above-mentioned sealing structure can improve the sealing performance and sound insulation effect between the door leaf and the door frame.

Description

Technical Field

[0001] The present invention relates to the technical field of door leaves, and particularly to a sealing structure for closing door gaps and a door assembly. Background Art

[0002] When the door leaf of the prior art is closed, there is usually a certain gap between the outer edge portion thereof and the door frame, and this gap will affect the sealing performance and sound insulation effect of the door leaf.

[0003] Therefore, how to provide a solution to overcome or alleviate the above defects is still a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] The purpose of the present invention is to provide a sealing structure for closing door gaps and a door assembly, wherein the sealing structure can improve the sealing performance and sound insulation effect between the door leaf and the door frame.

[0005] To solve the above technical problems, the present invention provides a sealing structure for closing door gaps, including a first sealing unit. The first sealing unit is installed on one of the door frame and the door leaf. The first sealing unit includes an elastic member and a sealing member. The elastic member is connected to the sealing member, and at least one of the other of the door frame and the door leaf and the sealing member is provided with a magnetic attraction component. When the door leaf is in the open state, the sealing member is in a retracted state under the action of the elastic member. When the door leaf is in the closed state, the other of the door frame and the door leaf and the sealing member can be magnetically attached, and the sealing member is in an extended state.

[0006] Adopting the above structure, when the door leaf is in the closed state, the sealing member can extend under the action of the magnetic attraction component to magnetically attach to the one of the door frame and the door leaf where the first sealing unit is not provided, so as to reliably block the closing door gap of the door leaf, thereby greatly improving the sealing performance and sound insulation effect when the door leaf is in the closed state, which is beneficial to improving the user experience.

[0007] Moreover, when the door leaf is in the open state, under the action of the elastic member, the sealing member can be in a retracted state to avoid affecting the normal closing of the door leaf, that is to say, the setting of the above sealing structure does not affect the smoothness of the door leaf closing.

[0008] Optionally, the elastic member includes a swing arm and an elastic member which are hinged. The swing arm includes opposite first and second ends. The hinged position of the swing arm is between the first end and the second end. One of the first end and the second end is connected to the sealing member, and the other of the first end and the second end acts on the elastic member.

[0009] Optionally, the elastic member is a torsion spring, and its outer sleeve is mounted on the hinge shaft of the swing arm.

[0010] Optionally, the first sealing unit further includes a base, the base is mounted on one of the door frame and the door leaf, and the swing arm is hinged to the base.

[0011] Optionally, the sealing member includes a connecting seat and a seal mounted on the connecting seat, and one of the first end and the second end is hinged to the connecting seat.

[0012] Optionally, the magnetic attraction component is mounted on the connecting seat; and / or, the connecting seat is U-shaped, including two opposite side wall portions and a bottom wall portion, one of the first end and the second end is hinged to the two side wall portions, and the bottom wall portion is provided with a structural cavity.

[0013] Optionally, the door frame is provided with a first groove, and the first sealing unit is installed in the first groove.

[0014] Optionally, flexible fillers are provided between the two side walls of the first groove and the first sealing unit.

[0015] Optionally, the outer edge of the door leaf is provided with a edging structure; the magnetic attraction component is arranged in the edging structure; or, the magnetic attraction component is arranged on the first sealing unit, and a metal piece or alloy piece capable of being adsorbed by the magnetic attraction component is arranged in the edging structure.

[0016] Optionally, the door frame is further provided with a second sealing unit. When the door leaf is in the closed state, the outer edge of the door leaf can be in contact with the second sealing unit in the rotation direction.

[0017] The present invention also provides a door assembly, including a door frame, a door leaf and the above-mentioned sealing structure for the closing gap.

[0018] Since the above-mentioned sealing structure for the closing gap already has the above technical effects, then, the door assembly having this sealing structure should also have similar technical effects, so it will not be elaborated here. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the sealing structure for the closing gap provided by the present invention when the door leaf is in the closed state;

[0020] Figure 2 It is a connection structure diagram of the sealing member and the door frame;

[0021] Figure 3 It is a schematic structural diagram of the first sealing unit;

[0022] Figure 4Connection structure diagram of elastic component and base

[0023] Figure 5 Schematic structural diagram of swing arm

[0024] Figures 1 - 5 The reference signs in the figures are explained as follows:

[0025] 1 First sealing unit, 11 Elastic component, 111 Swing arm, 112 Elastic member, 113 Hinge hole, 113a Nylon flange, 114 Hinge shaft, 12 Sealing member, 121 Connecting seat, 121a Structural cavity, 121b Magnetic component, 122 Sealing element, 13 Base

[0026] 2 Door frame, 21 First groove, 22 Second groove, 23 Second sealing unit

[0027] 3 Door leaf, 31 Edge covering plate, 32 Iron bar Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments

[0029] The terms "first", "second", etc. described herein are only for facilitating the description of two or more structures or components with the same or similar structures and / or functions, and do not represent a special limitation on the order and / or importance

[0030] Please refer to Figures 1 - 5 , Figure 1 which is a schematic structural diagram of the sealing structure of the closing gap provided by the present invention when the door leaf is in the closed state Figure 2 Connection structure diagram of the sealing member and the door frame Figure 3 Schematic structural diagram of the first sealing unit Figure 4 Connection structure diagram of the elastic component and the base Figure 5 Schematic structural diagram of the swing arm

[0031] As Figures 1 - 3 shown, the present invention provides a sealing structure for a closing gap, including a first sealing unit 1. The first sealing unit 1 is installed on one of the door frame 2 and the door leaf 3. The first sealing unit 1 includes an elastic component 11 and a sealing member 12. The elastic component 11 is connected to the sealing member 12. At least one of the other of the door frame 2 and the door leaf 3 and the sealing member 12 is provided with a magnetic component 121b. When the door leaf 3 is in the open state, the sealing member 12 is in the retracted state under the action of the elastic component 11. When the door leaf 3 is in the closed state, the sealing member 12 can be magnetically attached to the other of the door frame 2 and the door leaf 3, and the sealing member 12 is in the extended state

[0032] With the above structure, when the door leaf 3 is in the closed state, the sealing member 12 can extend under the action of the magnetic attraction member 121b to magnetically adhere to one of the door frame 2 and the door leaf 3 where the first sealing unit 1 is not provided, so as to reliably block the closing gap of the door leaf 3, thereby greatly improving the sealing performance and sound insulation effect when the door leaf 3 is in the closed state, which is beneficial to improving the user experience.

[0033] Moreover, when the door leaf 3 is in the open state, under the action of the elastic member 11, the sealing member 12 can be in the retracted state to avoid affecting the normal closing of the door leaf 3. That is to say, the setting of the above sealing structure does not affect the smoothness of the closing of the door leaf 3.

[0034] Combined Figure 4 、 Figure 5 , in a specific solution, the elastic member 11 may include a swing arm 111 and an elastic member 112 which are hinged. The swing arm 111 may include an opposite first end (not marked in the figure) and a second end (not marked in the figure). The hinged position of the swing arm 111 may be located between the first end and the second end. One of the first end and the second end may be connected to the sealing member 12, and the other of the first end and the second end may act on the elastic member 112.

[0035] For the convenience of description, the solution in which the first end is connected to the sealing member 12 and the second end acts on the elastic member 112 will be taken as an example for description.

[0036] When the door leaf 3 is in the closed state, under the action of the magnetic attraction member 121b, the swing arm 111 can rotate around the hinged position and push the sealing member 12 to extend through the first end, so that the sealing member 12 can magnetically adhere and seal with one of the door frame 2 and the door leaf 3 where the first sealing unit 1 is not provided. During this process, since the second end will rotate synchronously, the elastic member 112 can be in the energy storage state. Thus, when the door leaf 3 is in the open state, the energy stored in the elastic member 112 can be released and act on the second end to drive the swing arm 111 to rotate in the reverse direction, and the sealing member 12 can return to the retracted state.

[0037] In the above solution, the acting position of the elastic member 112 and the connecting position of the sealing member 12 are respectively located at the two ends of the swing arm 111. In fact, the acting position of the elastic member 112 and the connecting position of the sealing member 12 can also be located at the same end of the swing arm 111, which does not affect the realization of the above technical effects.

[0038] The types of the elastic member 112 can be diverse, such as linear springs, tension ropes, elastic blocks, torsion springs, etc., which are specifically related to the installation position of the elastic member 112, etc. For the solution where the acting position of the aforementioned elastic member 112 and the connecting position of the sealing member 12 are respectively located at two ends of the swing arm 111, the elastic member 112 can adopt a torsion spring, and this torsion spring can be installed outside the hinge shaft 114 of the swing arm 111, or, alternatively, elastic elements such as linear springs can also be adopted.

[0039] The above-mentioned first sealing unit 1 may further include a base 13, and the base 13 can be installed on one of the door frame 2 and the door leaf 3. The specific installation method can be welding, clamping, etc. Taking the solution where the first sealing unit 1 is installed on the door frame 2 as an example, as Figure 1 、 Figure 2 shown, the door frame 2 can be provided with a first groove 21, and a clamping groove (not marked in the figure) can be provided at the bottom wall of the first groove 21. The base 13 can be clamped and installed in the clamping groove to fix the base 13. The swing arm 111 can be specifically hinged on the base 13. For the solution where the elastic member 112 adopts a torsion spring, one end of the torsion spring can act on the base 13.

[0040] It can be known that whether it is a vertical door gap or a horizontal door gap, both have a certain extension length. Correspondingly, the sealing member 12 used to seal the door gap also has a certain extension length. Thus, the number of elastic members 11 matched with the sealing member 12 can be multiple to ensure that the sealing member 12 can act more smoothly.

[0041] The base 13 and the elastic member 11 can be provided in a matching manner, that is, one elastic member 11 can be matched with one base 13, or, alternatively, one base 13 can also install multiple elastic members 11 at the same time, which is also an option that can be adopted in actual use.

[0042] Please continue to refer to Figure 2 , the sealing member 12 can include a connecting seat 121 and a sealing member 122 installed on the connecting seat 121. One of the first end and the second end of the aforementioned swing arm 111 can be hinged to the connecting seat 121. To reduce the wear of the hinge shaft 114 and the hinge hole 113 during the rotation process, nylon flanges 113a (specifically, see Figure 4 ) bearings, bearing bushes and other components can be provided in the hinge hole 113.

[0043] The aforementioned magnetic attraction member 121b can specifically be a component that can generate magnetic attraction force such as a permanent magnet, an electromagnet, etc. For the solution where the magnetic attraction member 121b is installed on the first sealing unit 1, the magnetic attraction member 121b can specifically be installed on the connecting seat 121.

[0044] In detail, as Figure 2 、Figure 3 As shown, the connecting seat 121 can be U-shaped, including two opposite side wall parts and a bottom wall part. During installation, the connecting seat 121 can be inserted into the first groove 21 with its open end, and one of the first end and the second end of the swing arm 111 can be hinged to the two side wall parts; a structural cavity 121a can be provided on the bottom wall part of the connecting seat 121, and the structural cavity 121a can specifically be a through hole extending in the same direction as the connecting seat 121, which can increase the structural strength of the connecting seat 121; the magnetic attraction component 121b can be installed in the structural cavity 121a, or can also be installed on the inner wall surface of the bottom wall part, and the seal 122 can be installed on the outer wall surface of the bottom wall part. The specific installation method can be bonding, such as glue bonding or double-sided tape bonding, etc. The type of the seal 122 is not limited here.

[0045] Flexible fillers (not shown in the figure), such as sealing strips, can be provided between the two side walls of the first groove 21 and the first sealing unit 1, which can reduce the gap between the two side walls of the first groove 21 and the first sealing unit 1, and further reduce the friction noise generated when the sealing member 12 operates. At the same time, it can also largely prevent dust and other sundries from entering the first groove 21 and affecting the smooth operation of the sealing member 12.

[0046] Generally speaking, a edge wrapping structure can be provided on the outer edge of the door leaf 3 to protect the outer edge of the door leaf 3. For the scheme in which the magnetic attraction component 121b is arranged in the first sealing unit 1, a metal part or alloy part that can be attracted by the magnetic attraction component 121b, such as Figure 1 the iron bar 32 in, can be provided in the edge wrapping structure. In this case, in addition to fixing the installation position of the iron bar 32, the edge wrapping structure can also play a role in delaying rust. In fact, the magnetic attraction component 121b can also be provided in the edge wrapping structure, as long as the polarities of the opposite two sides of the magnetic attraction component 121b in the first sealing unit 1 and the magnetic attraction component 121b in the edge wrapping structure are opposite.

[0047] The structural form of the edge wrapping structure can be various. In the Figure 1 scheme, the edge wrapping structure can include an edge wrapping cover plate 31, and the edge wrapping cover plate 31 can be fixed by various methods such as clamping, bonding, and screw connection.

[0048] Furthermore, the door frame 2 can also be equipped with a second sealing unit 23. The specific installation method can be snap connection, bonding, etc. Taking snap connection as an example, the door frame 2 can be provided with a second groove 22, and the second sealing unit 23 can be snap-fitted into the second groove 22. When the door leaf 3 is in the closed state, the outer edge of the door leaf 3 can be in contact with the second sealing unit 23 in the rotational direction. In cooperation with the aforementioned first sealing unit 1, double sealing can be achieved to ensure the sealing effect of the closing door gap to a greater extent. At the same time, the setting of the second sealing unit 23 can also be used to reduce the closing door noise to improve the user experience.

[0049] The second sealing unit 23 can specifically be a polyurethane foam sealing strip, or it can also be a soft sealing strip made of other materials. Its shape can be various shapes such as O-shaped, C-shaped, L-shaped, etc. For details, please refer to Figure 1 , and the second sealing unit 23 can be fixed in the second groove 22 through a connecting foot. This connection method can be a co-extrusion connection of hard and soft materials.

[0050] It should be emphasized that the embodiments of the present invention do not limit the positions where the above sealing structure is applied. It can be used for the upper and lower door gaps of the door leaf 3 or the left and right door gaps of the door leaf 3.

[0051] The present invention also provides a door assembly, including a door frame and a door leaf. The sealing structure between the door frame and the door leaf is the sealing structure for the closing door gap involved in the above various embodiments.

[0052] Since the above sealing structure for the closing door gap already has the above technical effects, then the door assembly with this sealing structure should also have similar technical effects, so it will not be elaborated here.

[0053] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A sealing structure for a door closing gap, characterized in that, Comprising a first sealing unit (1), the first sealing unit (1) is installed on one of a door frame (2) and a door leaf (3), the first sealing unit (1) includes an elastic member (11) and a sealing member (12), the elastic member (11) is connected to the sealing member (12), and at least one of the other of the door frame (2) and the door leaf (3) and the sealing member (12) is provided with a magnetic attraction component (121b); When the door leaf (3) is in an open state, the sealing member (12) is in a retracted state under the action of the elastic member (11). When the door leaf (3) is in a closed state, the other of the door frame (2) and the door leaf (3) and the sealing member (12) can be magnetically attached, the sealing member (12) is in an extended state, and a part of the sealing member (12) in the extended state is located in the closing gap; The elastic member (11) includes a swing arm (111) and an elastic member (112) which are hinged. The swing arm (111) includes an opposite first end and second end. The hinged position of the swing arm (111) is between the first end and the second end. The first end is connected to the sealing member (12), and the second end acts on the elastic member (112); The elastic member (112) is a torsion spring, and its outer sleeve is installed on the hinge shaft (114) of the swing arm (111); The first sealing unit (1) further includes a base (13), the base (13) is installed on one of the door frame (2) and the door leaf (3), and the swing arm (111) is hinged to the base (13); The sealing member (12) includes a connecting seat (121) and a sealing member (122) installed on the connecting seat (121), and the first end is hinged to the connecting seat (121); The connecting seat (121) is U-shaped, including two opposite side wall parts and a bottom wall part, and the first end is hinged to the two side wall parts; 2. The sealing structure for the closing gap according to claim 1, characterized in that, The magnetic attraction component (121b) is installed on the connecting seat (121); 3. The sealing structure for the closing gap according to claim 1, characterized in that The bottom wall part is provided with a structural cavity (121a); 4. The sealing structure for the closing gap according to any one of claims 1-3, characterized in that The door frame (2) is provided with a first groove (21), and the first sealing unit (1) is installed in the first groove (21); 5. The sealing structure for the closing gap according to claim 4, characterized in that, Flexible fillers are provided between the two side walls of the first groove (21) and the first sealing unit (1); 6. The sealing structure for the closing gap according to claim 4, characterized in that, The outer edge of the door leaf (3) is provided with a edging structure; The magnetic attraction component (121b) is arranged in the edging structure; or, the magnetic attraction component (121b) is arranged on the first sealing unit (1), and a metal part or alloy part capable of being adsorbed by the magnetic attraction component (121b) is provided in the edging structure; 7. The sealing structure for the closing gap according to any one of claims 1-3, characterized in that, The door frame (2) is further installed with a second sealing unit (23). When the door leaf (3) is in a closed state, the outer edge of the door leaf (3) can be in contact with the second sealing unit (23) in the rotation direction; 8. A door assembly, comprising a door frame (2) and a door leaf (3), characterized in that, Also including a sealing structure for the closing gap as described in any one of claims 1-7.

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