Magnetic suction sealing device and door leaf assembly

Abstract

The utility model discloses a magnetic suction sealing device and door leaf subassembly, including door leaf magnetic suction sealing subassembly and door pocket magnetic suction sealing element, door pocket magnetic suction sealing element includes foam material portion and door pocket magnetic suction strip, foam material portion wraps the outside of door pocket magnetic suction strip, door pocket magnetic suction sealing element is used for mounting on the door pocket; the door leaf magnetic suction sealing assembly comprises a metal fixing piece and a door leaf magnetic suction sealing piece, the metal fixing piece is used for being fixed to the door leaf, the door leaf magnetic suction sealing piece is embedded in the metal fixing piece, and the door leaf magnetic suction sealing piece is used for being in magnetic suction fit with the door pocket magnetic suction sealing piece in the door closing state. The door pocket magnetic suction sealing piece is provided with the foaming material part, the door pocket magnetic suction strip is protected through the foaming material part, and the foaming material part has a certain buffering and vibration absorbing effect. The door leaf magnetic attraction sealing assembly is fixed to the door leaf through the metal fixing piece of the door leaf magnetic attraction sealing assembly, the metal fixing piece has certain rigidity, the door leaf magnetic attraction sealing assembly and the door leaf can be fixed through bonding and combining with the fastening piece, and the installation reliability is higher.

Description

Technical Field

[0001] This utility model relates to the field of door panel technology, and in particular to a magnetic sealing device and door panel assembly. Background Technology

[0002] In home spaces, doors not only serve to separate spaces and decorate, but should also have certain functionalities to meet the different needs of people in the living room or bedroom. When resting in the bedroom, the need for quiet arises, and as the only node connecting the spaces, the door's sound insulation function is essential to meet the needs of today's consumers and to meet the various functional needs of different living scenarios.

[0003] In existing technology, a door frame includes an auxiliary support rod arranged on one side of the inner wall of the doorway, and an interior side flat plate line and an exterior side flat plate line located on both sides of the auxiliary support rod. The door leaf is hinged to the auxiliary support rod on one side. Generally, for ease of use and safety considerations, the door leaf is designed to open inwards, meaning it rotates inwards to open. To ensure appropriate limiting when the door is closed, a door stop line is provided on the auxiliary support rod; when the door leaf is closed, it abuts against the door stop line to restrict the closing position. To ensure a sealing and quiet operation after the door is closed, corresponding sealing devices are provided on the door stop line and the door leaf.

[0004] Magnetic sealing devices are widely used due to their superior noise reduction and sealing performance. Door frame magnetic seals are installed on the door stop line, and door leaf magnetic seals are installed on the door leaf, with the door frame and door leaf magnetic seals connected magnetically. However, because the closing force is difficult to control, some users close the door too forcefully, causing the door frame and door leaf magnetic seals to impact violently, resulting in loud closing noise and potentially causing the seals to detach.

[0005] Therefore, how to reduce the noise caused by excessive closing force and the problem of easy detachment of seals are technical problems that need to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a magnetic sealing device to reduce noise caused by excessive closing force and the problem of easy detachment of the sealing element.

[0007] Another objective of this invention is to provide a door assembly having the aforementioned magnetic sealing device.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A magnetic sealing device includes a door leaf magnetic sealing assembly and a door frame magnetic sealing component. The door frame magnetic sealing component includes a foam material part and a door frame magnetic strip. The foam material part is wrapped around the outside of the door frame magnetic strip. The door frame magnetic sealing component is used to be installed on the door frame.

[0010] The door leaf magnetic sealing assembly includes a metal fastener and a door leaf magnetic sealing component. The metal fastener is used to fix it to the door leaf, and the door leaf magnetic sealing component is embedded in the metal fastener. The door leaf magnetic sealing component is used to magnetically engage with the door frame magnetic sealing component when the door is closed.

[0011] Optionally, in the above-mentioned magnetic sealing device, the door frame magnetic sealing component further includes a plastic protective sleeve wrapped around the outside of the foam material part, and at least one side of the plastic protective sleeve is provided with a double-sided adhesive layer for bonding to the installation position of the door frame.

[0012] Optionally, in the above-mentioned magnetic sealing device, the metal fastener of the door leaf magnetic sealing assembly is a door leaf edge seal. The door leaf edge seal is made of metal and includes a first fitting part and a second fitting part for fitting onto the side wall of the door leaf. The surfaces of the first fitting part and the second fitting part that are fitted to the side wall of the door leaf are not on the same plane. Both the first fitting part and the second fitting part are provided with pins for inserting into the pin grooves of the side wall of the door leaf. At the junction of the first fitting part and the second fitting part, and on the side facing away from the side wall of the door leaf, a magnetic component mounting groove is provided. The door leaf magnetic sealing component is disposed in the magnetic component mounting groove.

[0013] The foamed material portion has a first attractive surface, and the magnetic mounting groove has a second attractive surface. When the door is closed, the first attractive surface corresponds to the second attractive surface, and the thickness of the foamed material portion at the first attractive surface is thinner than at other locations, and the thickness of the sidewall of the magnetic mounting groove at the second attractive surface is thinner than at other locations.

[0014] Optionally, in the above-mentioned magnetic sealing device, the magnetic mounting groove has a closed outer side wall, and at least one end of the magnetic mounting groove has an insertion port for inserting the door leaf magnetic sealing element.

[0015] The first fitting part and the second fitting part are connected by a connecting part, and the second fitting part is closer to the outer surface of the door leaf than the first fitting part;

[0016] The magnetic mounting groove is provided on the connecting part and is located on the side close to the second fitting part.

[0017] Optionally, in the above-described magnetic sealing device, the surfaces of the first and second contact portions that contact the side wall of the door leaf are provided with serrations; and / or,

[0018] The outer peripheral surface of the pin is provided with barbs; and / or,

[0019] The first bonding portion at the end away from the second bonding portion and the second bonding portion at the end away from the first bonding portion are both provided with a first edge covering the inner and outer surfaces of the door leaf.

[0020] Optionally, in the above-mentioned magnetic sealing device, the metal fastener of the door leaf magnetic sealing assembly is a magnetic metal fastener, and the magnetic metal fastener is provided with a snap-fit ​​groove.

[0021] The door magnetic sealing component includes a magnetic positioning part, a buffer sleeve, and a door magnetic strip. The buffer sleeve is wrapped around the outside of the door magnetic strip and fixed to the magnetic positioning part. The magnetic positioning part is inserted into the snap-fit ​​groove.

[0022] The foamed material portion has a first suction surface, and the cushioning sleeve has a second suction surface. When the door is closed, the first suction surface corresponds to the second suction surface, and the thickness of the foamed material portion at the first suction surface is thinner than at other locations.

[0023] Optionally, in the above-mentioned magnetic sealing device, the magnetic metal fastener includes a first fixing plate portion and a second fixing plate portion, the first fixing plate portion and the second fixing plate portion are perpendicular to each other, and an insert groove is provided on the outer side wall of the door leaf, the first fixing plate portion and the second fixing plate portion respectively fit against the two side walls of the insert groove;

[0024] The snap-fit ​​groove is arranged at the junction of the first fixing plate portion and the second fixing plate portion, and the magnetic suction positioning portion has a first positioning plate portion that fits into the first fixing plate portion and a second positioning plate portion that fits into the second fixing plate portion.

[0025] A first clamping arm is provided on the first fixing plate, and a second clamping arm is provided on the second fixing plate. A suction area is formed between the first clamping arm and the second clamping arm, and the second suction surface of the buffer sleeve is exposed in the suction area.

[0026] The first locking arm, the second locking arm, the first fixing plate portion, and the second fixing plate portion form the locking groove, and the distance between the first locking arm and the second locking arm is less than the distance between the ends of the first positioning plate portion and the second positioning plate portion.

[0027] Optionally, in the above-mentioned magnetic sealing device, the two sides of the suction surface of the buffer sleeve extend outward to form limiting edges, and the magnetic positioning part and the limiting edges on both sides of the suction surface of the buffer sleeve respectively form a first limiting groove and a second limiting groove. The first locking arm is embedded in the first limiting groove, and the second locking arm is embedded in the second limiting groove.

[0028] The magnetic sealing device provided by this utility model has a foamed material portion that wraps around the magnetic strip of the door frame. This foamed material portion protects the magnetic strip and provides a certain degree of cushioning and vibration absorption. The door leaf magnetic sealing assembly is fixed to the door leaf by its metal fastener. The metal fastener has a certain rigidity and can be fixed to the door leaf by adhesive fasteners, resulting in higher installation reliability. The door leaf magnetic sealing component is embedded in the metal fastener; compared to direct adhesion to the door leaf, embedding it in the metal fastener provides higher installation reliability due to the support of the metal fastener. When the door is closed, the door frame magnetic sealing component collides with the door leaf magnetic sealing assembly. The foamed material portion cushions the impact force, reducing damage to the magnetic strip and the door leaf magnetic sealing component. While cushioning the impact force, the foamed material portion also reduces noise when the door is opened and closed, thus reducing bedroom noise.

[0029] A door leaf assembly includes a door frame and a door leaf connected to the door frame by hinges, wherein the door leaf sidewall has a stepped structure to form a first door gap on the outside side and a second door gap on the inside side between the door leaf and the door frame, the first door gap and the second door gap being parallel and not on a straight line;

[0030] It also includes the magnetic sealing device as described in any of the preceding claims, wherein the door leaf magnetic sealing assembly is disposed on the door leaf side wall and the door leaf magnetic sealing element is located at the turning point of the stepped structure of the door leaf side wall, and the door frame magnetic sealing element is disposed on the door frame.

[0031] Optionally, in the above door leaf assembly, the door frame includes:

[0032] Auxiliary support rods are used to be arranged on the side of the doorway wall;

[0033] The interior side flat plate line is connected to one side of the auxiliary sleeve upright and is positioned on the interior side in the thickness direction of the door opening wall.

[0034] An outdoor flat plate line is connected to the other side of the auxiliary sleeve upright and positioned on the outdoor side in the thickness direction of the door opening wall. The outdoor flat plate line is made of metal and the side of the outdoor flat plate line facing the door leaf protrudes from the auxiliary sleeve upright to form a door closing limit part. The door sleeve magnetic sealing element is provided on the side of the door closing limit part facing the door leaf.

[0035] The door assembly provided by this utility model has the above-mentioned magnetic sealing device, and therefore has all the technical effects of the above-mentioned magnetic sealing device, which will not be repeated here. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the door panel assembly disclosed in Embodiment 1 of this utility model;

[0038] Figure 2 This is a schematic diagram of the door panel assembly disclosed in Embodiment 2 of this utility model;

[0039] Figure 3 This is a schematic diagram of the door panel assembly disclosed in Embodiment 3 of this utility model;

[0040] Figure 4 This is a schematic diagram of the door panel assembly disclosed in Embodiment 4 of this utility model;

[0041] Figure 5 This is a schematic diagram of the door panel assembly disclosed in Embodiment 5 of this utility model;

[0042] Figure 6 This is a schematic diagram of the structure of the magnetic sealing component for door frames disclosed in an embodiment of this utility model;

[0043] Figure 7 This is a schematic diagram of the door leaf edge sealing structure disclosed in an embodiment of the present utility model;

[0044] Figure 8 This is a schematic diagram of the structure of the magnetic sealing assembly for the door leaf disclosed in an embodiment of this utility model;

[0045] Figure 9 This is a schematic diagram of the structure of the first specification flat wire disclosed in the embodiment of this utility model;

[0046] Figure 10 This is a schematic diagram of the structure of the second specification flat plate line disclosed in an embodiment of this utility model.

[0047] The meanings of the various reference numerals in the figure are as follows:

[0048] 100 - Doorway wall;

[0049] 200-Door leaf; 2001-First door gap; 2002-Second door gap; 201-Door leaf edge banding; 2011-Insertion pin; 2012-Serve; 2013-First edge banding; 2014-Positioning pin; 202-Door leaf magnetic sealing element; 2021-Buffer wrapping sleeve; 20211-First limiting groove; 20212-Second limiting groove; 2022-Door leaf magnetic strip; 2023-Magnetic element positioning part; 203-Magnetic metal fixing element; 2031-Snap-fit ​​groove; 20311-First snap-fit ​​arm; 20312-Second snap-fit ​​arm; 2032-Second edge banding; 2033-First fixing plate part; 2034-Second fixing plate part; 20341-Limiting block part; 210-First fitting part; 220-Second fitting part; 230-Connecting part;

[0050] 300-Door frame; 301-Auxiliary frame support; 302-Indoor side flat panel line; 303-Gap; 304-Closing door reserved protrusion; 305-First specification flat panel line; 3051-Corner code slot; 3052-Corner piece slot; 3053-First closing limit part; 3054-Second slot; 3055-Line contact part; 306-Door frame magnetic sealing element; 3061-Plastic protective sleeve; 3062-Foaming material part; 3063-Door frame magnetic strip; 3064-Double-sided adhesive layer; 307-Plug-in part; 308-Second specification flat panel line; 3081-Corner code slot; 3082-Corner piece slot; 3083-Line contact part; 3084-Thickened plate part; 3085-Second closing limit part; 3086-Fixing clamp groove; 3087-Closing door reserved side. Detailed Implementation

[0051] The core of this utility model is to provide a magnetic sealing device to reduce noise caused by excessive closing force and the problem of easy detachment of the seal.

[0052] Another key aspect of this invention is providing a door assembly with the aforementioned magnetic sealing device.

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] like Figures 1-6As shown in the figure, this utility model discloses a magnetic sealing device, including a door leaf magnetic sealing assembly and a door frame magnetic sealing element 306. The door frame magnetic sealing element 306 includes a foamed material portion 3062 and a door frame magnetic strip 3063. The foamed material portion 3062 wraps around the outside of the door frame magnetic strip 3063. The foamed material portion 3062 can be PU (polyurethane) foamed material. The foamed material portion 3062 has a certain elasticity and, when wrapped around the outside of the door frame magnetic strip 3063, can buffer the impact force when the door is closed, reduce the closing noise, and prevent damage caused by excessive impact force. The door frame magnetic sealing element 306 is used to install on the door frame 300, specifically by adhesive bonding.

[0055] The door leaf magnetic sealing assembly includes a metal fastener and a door leaf magnetic sealing component 202. The metal fastener is used to fix the door leaf 200, and the door leaf magnetic sealing component 202 is embedded in the metal fastener. The door leaf magnetic sealing component 202 is used to magnetically engage with the door frame magnetic sealing component 306 when the door is closed.

[0056] The magnetic sealing device provided by this utility model has a door frame magnetic sealing component 306 with a foamed material portion 3062 that wraps around the door frame magnetic strip 3063. The foamed material portion 3062 protects the door frame magnetic strip 3063 and has a certain buffering and vibration absorption effect. The door leaf magnetic sealing assembly is fixed to the door leaf by its metal fastener. The metal fastener has a certain rigidity and can be fixed to the door leaf by bonding with fasteners, resulting in higher installation reliability. The door leaf magnetic sealing component 202 is embedded in the metal fastener. Compared with direct bonding to the door leaf, embedding in the metal fastener provides higher installation reliability under the support of the metal fastener. When the door is closed, the door frame magnetic seal 306 collides with the door leaf magnetic seal assembly. The foam material part 3062 will buffer the impact force to a certain extent, thereby reducing the damage of the impact force to the door frame magnetic strip 3063 and the door leaf magnetic seal 202. While buffering the impact force, the foam material part 3062 also reduces the noise when the door is opened and closed, thus reducing bedroom noise.

[0057] like Figure 6As shown, the door frame magnetic seal 306 further includes a plastic protective sleeve 3061 wrapped around the foam material portion 3062. The plastic protective sleeve 3061 can be made of PE (Polyethylene). The plastic protective sleeve 3061 is more wear-resistant and durable than the foam material portion 3062, and is less prone to damage over time. At least one side of the plastic protective sleeve 3061 is provided with a double-sided adhesive layer 3064 for bonding to the installation position on the door frame 300. By providing the double-sided adhesive layer 3064, the installation convenience of the door frame magnetic seal 306 is improved. A protective layer can be pasted on the outside of the double-sided adhesive layer 3064. During on-site installation, the door frame magnetic seal 306 can be installed by simply tearing off the protective layer. It is also easy to disassemble. When after-sales problems occur and repairs are needed, it can be easily torn off. It will not easily fall off even under long-term door leaf pressure and impact, and has a high degree of fit with the door frame.

[0058] The cross-section of the door frame magnetic seal 306 can be a right-angled triangle. The door frame magnetic strip 3063 can be designed to be parallel to the hypotenuse of the triangle. The hypotenuse of the triangle is the magnetic surface of the door frame magnetic seal 306, which is the surface that magnetically adheres to the door leaf magnetic seal 202. The double-sided adhesive layer 3064 can be set on one of the right-angled sides or on both right-angled sides.

[0059] Please combine Figure 7 In this embodiment, the metal fastener of the door leaf magnetic sealing assembly is the door leaf edge 201, which is used to wrap around the side wall of the door leaf 200 (the surface other than the indoor and outdoor surfaces of the door leaf 200) to protect the door leaf and provide an installation base for the door leaf magnetic sealing assembly 202.

[0060] The door leaf edge banding 201 is made of metal and includes a first fitting part 210 and a second fitting part 220 for attaching to the side wall of the door leaf. It should be noted that grooves need to be cut on the side wall of the door leaf 200 around its perimeter, so that the side wall of the door leaf is stepped, so as to cooperate with the first fitting part 210 and the second fitting part 220 respectively. That is, the surfaces of the first fitting part 210 and the second fitting part 220 that are fitted to the side wall of the door leaf are not on the same plane. Both the first fitting part 210 and the second fitting part 220 are provided with a pin 2011. The pin 2011 can be a plate-shaped structure parallel to the extension direction of the door leaf edge 201, or it can be a plurality of column-shaped structures arranged along the extension direction of the door leaf edge 201. The pin 2011 is used to insert into the nail groove of the door leaf side wall. At the junction of the first fitting part 210 and the second fitting part 220, and on the side facing away from the door leaf side wall, a magnetic suction mounting groove is provided. A door leaf magnetic suction sealing element 202 is provided in the magnetic suction mounting groove. The door leaf magnetic seal 202 can be a magnetized body. One side wall of the magnetic seal mounting groove fits into the door frame magnetic seal 306. This side wall is the suction surface. The size of the suction surface can be designed to the maximum size without affecting the installation of other hardware. It can be used normally by the elderly or children. It works with the door frame magnetic seal 306 to effectively improve the sealing and sound insulation of the door leaf 200. It can also provide some support for the door leaf 200 and prevent the door leaf 200 from deforming.

[0061] For ease of distinction, the suction surface of the foam material section 3062 is defined as the first suction surface, and the suction surface of the magnetic mounting groove is defined as the second suction surface. When the door is closed, the first suction surface and the second suction surface correspond to each other, and the thickness of the foam material section 3062 at the first suction surface is thinner than that at other locations to ensure sufficient suction. The side wall of the magnetic mounting groove is thinner at the second suction surface than at other locations.

[0062] The door leaf edge banding 201 is used to connect with the door leaf 200. A glue seam can be left at the connection with the door leaf 200. The width of the glue seam can be designed to be 0.2mm. By applying glue into the glue seam, the bonding strength between the door leaf edge banding 201 and the door leaf 200 can be further increased. As the stability of the door leaf edge banding 201 is improved, the installation reliability of the door leaf magnetic sealing component 202 is also improved.

[0063] The door leaf 200 is fixed to the door leaf 200 by a metal ring (i.e., door leaf edge 201) around the outside of the door leaf magnetic seal 202. This high precision ensures a tight fit with the door frame magnetic seal 306, improving the door's sealing effect and waterproof / moisture-proof performance, enhancing sound insulation, and improving the texture and rigidity of the door leaf 200 itself, preventing deformation and meeting the customer's need for a quiet bedroom space. The side wall of the magnetic mounting groove encloses the inner door leaf magnetic seal 202, protecting it and ensuring its durability. It will not deform or crack even after prolonged impact. The soft door leaf magnetic seal 202, protected by the outer metal, can be fixed with strong adhesive. The precisely designed thickness of the suction surface ensures both protection of the door leaf magnetic seal 202 and the attraction between the door leaf 200 and the magnetic seal 202 when the door is closed, while also providing some support and reducing door leaf 200 noise.

[0064] The magnetic mounting groove has a closed outer wall, meaning that the outer wall of the magnetic mounting groove is closed along the extension direction of the door leaf edge 201, increasing the contact area of ​​the door leaf magnetic seal 202 in the magnetic mounting groove and improving installation reliability. The door leaf magnetic seal 202 can be glued into the magnetic mounting groove to prevent movement within the groove. Alternatively, it can be simply embedded in the magnetic mounting groove without glue, allowing for easy replacement after the magnetic force decreases. At least one end of the magnetic mounting groove has an insertion port for inserting the door leaf magnetic seal 202. When installing the door leaf magnetic seal 202, it can be inserted into the magnetic mounting groove through the insertion port at one end and then fixed with glue.

[0065] In this embodiment, the sidewall of the magnetic mounting groove includes at least the outer sidewall of the second fitting portion 220, the outer sidewall of the connecting portion 230, and a door leaf magnetic sidewall for fitting with the door frame magnetic sealing member 306 (the door leaf magnetic sidewall is the suction surface of the magnetic mounting groove). The door leaf magnetic sidewall is inclined to the second fitting portion 220. It should be noted that by arranging the door leaf magnetic sidewall inclined, the length of the suction surface can be increased within a limited width. In this embodiment, the door leaf magnetic sidewall can be at an angle of 40°-50° to the second fitting portion 220. The gap between the first fitting portion 210 and the door frame is the second door gap 2002, and the gap between the second fitting portion 220 and the door frame is the first door gap 2001.

[0066] The thickness of the magnetic sidewall of the door leaf will affect the adsorption force of the magnetic seal 202. In this embodiment, the thickness of the magnetic sidewall of the door leaf can be designed to be 0.2mm-0.4mm, which not only protects the soft magnetic seal 202 of the door leaf, but also does not affect the magnetic attraction with the magnetic seal 306 of the door frame. The sealing and sound insulation effects will not be affected. The magnetic seal 202 of the door leaf will fit with the magnetic seal 306 of the door frame with high precision. This utility model can perform numerical testing of the magnetic force to ensure that the attraction force can meet the requirements of sealing and sound insulation without affecting the use, so that the elderly and children can use it with convenience.

[0067] The surfaces of the first bonding portion 210 and the second bonding portion 220 that are in contact with the side wall of the door leaf are provided with serrations 2012 to increase the friction between them and the side wall of the door leaf. Furthermore, the grooves between the serrations 2012 can accommodate more adhesive, further enhancing the bonding strength and improving the installation reliability of the door leaf edge banding 201. The outer peripheral surface of the pin 2011 is provided with barbs. The barbs do not prevent the pin 2011 from being inserted into the nail groove, but they do prevent the pin 2011 from being pulled out of the nail groove. By providing barbs on the pin 2011, the reliability of the door leaf edge banding 201 can be further improved.

[0068] Furthermore, both the end of the first fitting portion 210 away from the second fitting portion 220 and the end of the second fitting portion 220 away from the first fitting portion 210 are provided with a first edge-sealing portion 2013 covering the inner and outer surfaces of the door leaf 200. The first edge-sealing portion 2013 is embedded into the inner and outer surfaces of the door leaf 200 and has only a 0.5mm protrusion, making it relatively flat. It covers the two large surfaces of the door leaf 200 with four-sided edge sealing technology and a 45° splicing at the joint, resulting in high precision and aesthetics, and preventing the risk of cutting hands.

[0069] Because the first fitting part 210 needs to be fitted with hardware such as locks, it is easy for the first fitting part 210 to lift up. Positioning pins 2014 can be added to the first fitting part 210 to improve the stability of the installation of the first fitting part 210 and prevent the first fitting part 210 from lifting up.

[0070] like Figure 8As shown in a specific embodiment of this utility model, the metal fastener of the door leaf magnetic sealing assembly is a magnetic metal fastener 203. The magnetic metal fastener 203 does not need to cover the entire side wall of the door leaf, but only a portion of it. The magnetic metal fastener 203 can be secured by nailing with a pneumatic nail gun. The magnetic metal fastener 203 is provided with a snap-fit ​​groove 2031 and can be made of aluminum alloy. At least one end of the snap-fit ​​groove 2031 along the extending direction of the magnetic metal fastener 203 is an insertion port. The door leaf magnetic sealing component 202 can be inserted into the snap-fit ​​groove 2031 through this insertion port, thereby securing the door leaf magnetic sealing component 202 to the magnetic metal fastener 203.

[0071] The door magnetic seal 202 includes a magnetic positioning part 2023, a buffer sleeve 2021, and a door magnetic strip 2022. The buffer sleeve 2021 wraps around the door magnetic strip 2022. The buffer sleeve 2021 has a certain degree of elasticity, which can reduce the impact force on the door magnetic seal assembly after being impacted, thereby reducing closing noise and preventing the door magnetic seal assembly from falling off due to excessive impact force. The magnetic positioning part 2023 can be made of rigid PVC (Polyvinyl chloride) material, and the buffer sleeve 2021 can be made of soft PVC material.

[0072] The cushioning sleeve 2021 is fixed to the magnetic locating part 2023, meaning the magnetic locating part 2023 is fixed to one side of the cushioning sleeve 2021, and the magnetic locating part 2023 is inserted into the snap-fit ​​slot 2031. The magnetic locating part 2023 is made of rigid material, and after being inserted into the snap-fit ​​slot 2031, it will not detach from the slot 2031 due to excessive deformation, thus improving installation reliability. The cushioning sleeve 2021 and the magnetic locating part 2023 can be injection molded into a single structure, or they can be fixed together by adhesive.

[0073] The foam material section 3062 has a first attractive surface, and the cushioning sleeve 2021 has a second attractive surface. When the door is closed, the first and second attractive surfaces correspond to each other, and the foam material section 3062 is thinner at the first attractive surface than at other locations. The cushioning sleeve 2021 itself is thin, and its rear is protected by the magnetic positioning section 2023; therefore, the cushioning sleeve 2021 does not need to be thickened at the rear and can have a uniform thickness throughout.

[0074] This invention enhances the overall stability and durability of the door leaf magnetic seal 202 by encasing it with a magnetic metal fastener 203. The magnetic seal 202 will not deform or crack even after prolonged impact. The soft door leaf magnetic strip 2022 is externally covered by a soft cushioning sleeve 2021 and a rigid magnetic positioning part 2023. The magnetic positioning part 2023 and the magnetic metal fastener 203 can be fixed with strong adhesive. The cushioning sleeve 2021 works in conjunction with the door frame magnetic seal, ensuring a comfortable user experience and providing cushioning against impact when the door closes, reducing noise. In addition to reducing closing noise, it also cushions the closing force, preventing the door leaf magnetic seal 202 from falling off due to impact.

[0075] In a specific embodiment of this utility model, the magnetic metal fastener 203 includes a first fixing plate portion 2033 and a second fixing plate portion 2034. The first fixing plate portion 2033 and the second fixing plate portion 2034 are perpendicular to each other. An inlay groove is provided on the outer side wall of the door leaf 200. By providing the inlay groove, the side wall of the door leaf has a stepped structure. The first fixing plate portion 2033 and the second fixing plate portion 2034 are respectively attached to the two side walls of the inlay groove.

[0076] The snap-fit ​​groove 2031 is arranged at the junction of the first fixing plate portion 2033 and the second fixing plate portion 2034. The magnetic chuck positioning portion 2023 has a first positioning plate portion that fits against the first fixing plate portion 2033 and a second positioning plate portion that fits against the second fixing plate. That is, the magnetic chuck positioning portion 2023 is also a right-angled folded plate structure, thereby achieving the purpose of fitting against the first fixing plate portion 2033 and the second fixing plate portion 2034.

[0077] In this embodiment, an inlay groove is provided on the door leaf 200, and the magnetic metal fastener 203 is fixed in the inlay groove. This improves the installation reliability of the door leaf magnetic sealing assembly. Furthermore, the inlay groove provides support when the door is closed, preventing the door leaf magnetic sealing assembly from falling off due to impact. Installing the door leaf magnetic sealing assembly in the inlay groove allows for a sealed connection between the door leaf magnetic seal 202 and the door frame magnetic seal 306 at the inlay groove position. This effectively conceals the door leaf magnetic seal 202, preventing it from being seen through the door gap from the interior side. This minimizes the exposed portion of the door leaf magnetic seal 202, enhancing the overall aesthetics of the door leaf.

[0078] Furthermore, a first locking arm 20311 is provided on the first fixing plate portion 2033, and a second locking arm 20312 is provided on the second fixing plate portion 2034. A suction area is formed between the first locking arm 20311 and the second locking arm 20312. The suction surface of the buffer sleeve 2021 that is in contact with the door frame magnetic seal 306 is exposed in the suction area. That is, the suction surface of the buffer sleeve 2021 that is used to contact with the door frame magnetic seal 306 is on the outside of the first locking arm 20311 and the second locking arm 20312, so that the first locking arm 20311 and the second locking arm 20312 do not obstruct the contact between the suction surface of the buffer sleeve 2021 and the door frame magnetic seal 306.

[0079] The first locking arm 20311, the second locking arm 20312, the first fixing plate portion 2033, and the second fixing plate portion 2034 form a locking groove 2031. The distance between the first locking arm 20311 and the second locking arm 20312 is less than the distance between the ends of the first positioning plate portion and the second positioning plate portion, so that the magnetic suction positioning portion 2023 cannot be dislodged through the space between the first locking arm 20311 and the second locking arm 20312 in the locking groove 2031, but can only be pulled out through the end insertion port of the locking groove 2031.

[0080] Furthermore, the two sides of the suction surface of the buffer sleeve 2021 extend outward to form limiting edges. The magnetic positioning part 2023 and the limiting edges on both sides of the suction surface of the buffer sleeve 2021 respectively form a first limiting groove 20211 and a second limiting groove 20212. The first locking arm 20311 is embedded in the first limiting groove 20211, and the second locking arm 20312 is embedded in the second limiting groove 20212. The limiting edges will shield the relatively hard first locking arm 20311 and second locking arm 20312, so that when the suction surface of the buffer sleeve 2021 impacts and adheres to the door frame magnetic seal 306 during the closing process, the first locking arm 20311 and second locking arm 20312 will not directly impact the door frame magnetic seal 306, but will be separated by the soft limiting edges, avoiding damage to the door frame magnetic seal 306 due to excessive impact force.

[0081] In a specific embodiment of this utility model, the end of the first fixing plate portion 2033 away from the second fixing plate portion 2034 and the end of the second fixing plate portion 2034 away from the first fixing plate portion 2033 are both provided with a second edge portion 2032 covering the outer surface of the mounting groove; the second edge portion 2032 is embedded into the outer surface of the mounting groove and has only a 0.5mm protrusion, making it relatively flat.

[0082] The second fixing plate portion 2034 extends in the thickness direction of the door leaf 200, and a protruding limiting block portion 20341 is provided on the surface of the second fixing plate portion 2034 facing the door leaf 200. A limiting groove that mates with the limiting block portion 20341 can be provided on the door leaf 200. After the magnetic metal fastener 203 is installed, the limiting block portion 20341 is embedded in the limiting groove, which can further improve the stability of the installation of the magnetic metal fastener 203. When the door is opened, because the door frame magnetic seal 306 applies a magnetic force to the door leaf magnetic seal 202, a pulling force will be generated on the magnetic metal fastener 203 during the opening process, which can easily cause adhesive failure. Because the limiting block portion 20341 and the limiting groove are in a concave-convex fit, the above-mentioned pulling force can be overcome, avoiding the probability of adhesive failure.

[0083] The door leaf magnetic sealing assembly extends and is fixed along the mounting groove set in the door leaf. When the door leaf is closed, the door leaf magnetic sealing component 202 and the door frame magnetic sealing component 306 fit tightly together. The suction force is strictly controlled so that the elderly or children can use it normally, thereby effectively improving the sealing and sound insulation of the door leaf.

[0084] The door leaf magnetic seal 202 and the door frame magnetic seal 306 are 45° angled magnetic noise reduction sealing structures. The outer ring magnetic metal fastener 203 is used to connect with the door leaf and leaves a 0.2mm-0.4mm glue gap, which makes it more secure and stable.

[0085] like Figures 1-5 As shown, this utility model embodiment also discloses a door leaf assembly, including a door frame 300 and a door leaf 200 connected to the door frame 300 by a hinge. The side wall of the door leaf 200 has a stepped structure to form a first door gap 2001 on the outside side and a second door gap 2002 on the inside side between the door leaf 200 and the door frame 300. The first door gap 2001 and the second door gap 2002 are parallel and not on a straight line.

[0086] The door panel assembly may also include the magnetic sealing device disclosed in the above embodiments. The door panel magnetic sealing assembly is disposed on the side wall of the door panel 200, and the door panel magnetic sealing element 202 is located at the turning point of the stepped structure of the door panel side wall. The door frame magnetic sealing element 306 is disposed on the door frame 300. The magnetic sealing device disclosed in this utility model embodiment has all the technical effects of the above-mentioned magnetic sealing device, and will not be described in detail here.

[0087] In this embodiment, the door frame 300 can significantly reduce the depth of the door leaf on the outdoor side, or even reduce the depth to 0, that is, completely eliminate the depth, so that the door leaf 200 and the outdoor side of the door frame 300 are on the same plane.

[0088] like Figures 1-5As shown, the door frame 300 disclosed in this embodiment of the present invention includes an auxiliary frame support 301, an indoor side flat panel line 302, and an outdoor side flat panel line. The auxiliary frame support 301 is used to be arranged on the side of the door opening wall 100, and usually needs to have a certain gap 303 with the door opening wall 100. The width of the gap 303 is usually set to 5mm, and after the door frame 300 is installed, it is fixed with glue within the reserved gap 303. In order to reinforce the auxiliary frame support 301 and at the same time cover the gap 303, an indoor side flat panel line 302 and an outdoor side flat panel line are added on both sides of the auxiliary frame support 301.

[0089] The interior-side flat panel line 302 is connected to one side of the auxiliary support 301 and is positioned on the interior side of the doorway wall along a thickness of 100 mm. Taking a bedroom door as an example, the interior-side flat panel line 302 is located on one side of the bedroom, while the exterior-side flat panel line is located on one side of the living room. The interior-side flat panel line 302 can... Figures 1-4 The wooden structure shown can also be Figure 5 The metal structure shown.

[0090] The outdoor side flat panel line connects to the other side of the auxiliary sleeve upright 301 and is positioned on the outdoor side of the door opening wall 100mm thickness direction. The outdoor side flat panel line is made of metal, and its side facing the door leaf 200 protrudes from the auxiliary sleeve upright 301 to form a closing limit part. A door sleeve magnetic sealing element 306 is provided on the side of the closing limit part facing the door leaf 200, which is magnetically connected to the door leaf magnetic sealing element 202. It should be noted that, depending on the structure, the outdoor side flat panel line can be... Figure 1 and Figure 2 The first specification flat line 305 shown can also be Figures 3-5 The second specification flat plate line 308 is shown.

[0091] During the opening and closing process, door leaf 200 rotates around one hinge. There is a risk of interference between the edge of door leaf 200 and door frame 300 during rotation. Therefore, the gap between the auxiliary sleeve 301 and door leaf 200 needs to be made relatively large to avoid interference during rotation, which would affect the opening and closing of door leaf 200. However, increasing the gap between the auxiliary sleeve 301 and door leaf 200 would result in an excessively large gap when door leaf 200 is closed, affecting the seal.

[0092] Based on this, such as Figure 1 and Figure 2 As shown, in this embodiment, a door-closing reserved protrusion 304 is provided on the auxiliary sleeve upright 301. Both the door-closing reserved protrusion 304 and the auxiliary sleeve upright 301 are made of wood. It should be noted that the door-closing reserved protrusion 304 is located on the side of the auxiliary sleeve upright 301 closest to the outside, so that it corresponds to the door-closing reserved protrusion 304 when the door leaf 200 is in the closed state.

[0093] The door closing reserved protrusion 304 protrudes beyond the auxiliary sleeve upright 301, meaning the door closing reserved protrusion 304 is closer to the door leaf 200 than the auxiliary sleeve upright 301. Furthermore, the dimension of the door closing reserved protrusion 304 in the thickness direction of the door leaf 200 (facing downwards when closed) is significantly smaller than the dimension of the auxiliary sleeve upright 301 in the same direction. Because the dimension of the door closing reserved protrusion 304 in the thickness direction of the door leaf 200 is smaller, it has less impact on the rotation space of the door leaf 200. Therefore, the gap between the door leaf 200 and the door closing reserved protrusion 304 can be designed to be relatively small. Although the distance between the door leaf 200 and the auxiliary sleeve upright 301 is relatively large, the closing gap is formed between the door leaf 200 and the door closing reserved protrusion 304 when the door is closed. Therefore, a small closing gap is ensured while allowing the door leaf 200 to open and close normally.

[0094] Those skilled in the art should understand that when setting the door closing reserved protrusion 304, a first-specification flat wire 305 needs to be selected as the outdoor flat wire. The first-specification flat wire 305 is connected to the door closing reserved protrusion 304 to connect with the auxiliary sleeve upright 301. The door closing reserved protrusion 304 is arranged closer to the outdoor side than the auxiliary sleeve upright 301 to provide an installation base for the first-specification flat wire 305. At the same time, the first-specification flat wire 305 can be arranged on the outside of the door opening wall 100 to cover the gap 303.

[0095] Please combine Figure 9 The closing limiting part of the first specification flat plate line 305 is the first closing limiting part 3053, which protrudes from the closing reserved protrusion 304 and corresponds to the second fitting part 220. When the door is closed, the first closing limiting part 3053 limits the door leaf 200. Because the side wall of the door leaf has a stepped structure, the door leaf magnetic sealing member 202 is located at the turning point of the stepped structure of the side wall of the door leaf. The door leaf magnetic sealing member 202 at the turning point of the stepped structure cooperates with the door frame magnetic sealing member 306 on the first closing limiting part 3053, so that the first closing limiting part 3053 is located at the turning point of the stepped structure, thereby offsetting the influence of the thickness of the first closing limiting part 3053 on the depth. This makes the outer surface of the door leaf 200 and the outer surface of the first closing limiting part 3053 on the same plane, so that the depth completely disappears.

[0096] In this embodiment, the first-specification flat wire 305 can be connected to the door-closing reserved protrusion 304 via a connector 307. Specifically, the door-closing reserved protrusion 304 is provided with a first slot, and the first-specification flat wire 305 is provided with a second slot 3054. The connector 307 has a first insert plate that inserts into the first slot and a second insert plate that inserts into the second slot 3054. The first-specification flat wire 305 can be connected to the door-closing reserved protrusion 304 via the connector 307, making the installation of the door frame 300 more convenient and simple. The first-specification flat wire 305 can be installed through simple assembly, improving installation efficiency.

[0097] Furthermore, the first and second insert plates of the connector 307 are not on the same straight line; in this embodiment, the first and second insert plates are arranged parallel to each other. The door-closing reserved protrusion 304 protrudes from the exterior surface of the auxiliary sleeve upright 301 and the exterior surface of the door opening wall 100. The first slot is opened at the position of the door-closing reserved protrusion 304 corresponding to the exterior surface of the auxiliary sleeve upright 301. During installation, the first insert plate of the connector 307 can be slid against the exterior surface of the auxiliary sleeve upright 301 toward the door-closing reserved protrusion 304 until the first insert plate is inserted into the first slot. The length of the first insert plate is no greater than the depth of the first slot, so that when the first insert plate is inserted into the first slot, it can be directly inserted into the connector 307. The connecting plate for connecting the first insert plate and the second insert plate is attached to the side of the door-closing reserved protrusion 304, which makes the installation more convenient. Moreover, it can ensure that after the installation is in place, the connector 307 has a large contact area with the door-closing reserved protrusion 304 and the first specification flat line 305, thus improving reliability.

[0098] The first specification flat panel 305 is an aluminum alloy part, which is equipped with at least corner bracket slot 3051 and corner piece slot 3052. By inserting corner brackets into corner bracket slot 3051 and corner pieces into corner piece slot 3052, the door frame can be easily fastened.

[0099] like Figures 3-5 as well as Figure 10 As shown, the outdoor flat cable can also be a second-specification flat cable 308. The second-specification flat cable 308 has a fixing groove 3086. One end of the auxiliary sleeve 301 on the outdoor side is inserted into the fixing groove 3086 and fixed by fasteners. To ensure a relatively flat connection between the second-specification flat cable 308 and the auxiliary sleeve 301 after installation, the thickness of the portion of the auxiliary sleeve 301 inserted into the fixing groove 3086 can be thinner than other parts. In addition to the insertion and mating with the auxiliary sleeve 301, the second-specification flat cable 308 can also be equipped with fasteners for more reliable fixing.

[0100] The surface of the second-specification flat panel 308 facing the door leaf 200 is a closed-door reserved side 3087, which protrudes from the auxiliary sleeve upright 301. The closing limiting part of the second-specification flat panel 308 is a second closing limiting part 3085, which protrudes from the closed-door reserved side 3087. That is, in the closed state, the closed-door reserved side 3087 is closer to the door leaf 200 than the auxiliary sleeve upright 301, and the dimension of the closed-door reserved side 3087 in the thickness direction of the door leaf 200 (downward in the closed state) is significantly smaller than the dimension of the auxiliary sleeve upright 301 in the thickness direction of the door leaf 200. Because the dimension of the reserved side 3087 for closing the door is small in the thickness direction of the door leaf 200, it has little impact on the rotation space of the door leaf 200. The gap between the door leaf 200 and the reserved side 3087 for closing the door can be designed to be relatively small. Although the distance between the door leaf 200 and the auxiliary sleeve upright 301 is large, the closing gap is formed between the door leaf 200 and the reserved side 3087 for closing the door when it is closed. Therefore, a small closing gap is ensured while ensuring that the door leaf 200 can open and close normally.

[0101] The second-specification flat panel 308 is used for installing hinge fasteners. It consists of a thicker plate section 3084 with a wall thickness greater than other areas. Hinges (such as concealed hinges) are fixed to this thicker plate section 3084 using hinge fasteners (such as screws), resulting in a more stable installation. The second-specification flat panel 308 is made of aluminum alloy and includes at least corner bracket slots 3081 and corner piece slots 3082. By inserting corner brackets into the corner bracket slots 3081 and corner pieces into the corner piece slots 3082, the connection of various parts of the door frame can be easily achieved.

[0102] In one specific embodiment of this utility model, the outdoor side flat line contacts and abuts against the outdoor side line of the doorway wall 100. For example... Figure 9 As shown, the line contact portion 3055 of the first specification flat wire 305, and Figure 10 The second-specification flat cable 308 shown has a line contact portion 3083. The line contact method provides stronger containment and better stability than surface contact. An aluminum alloy cavity is used to mount corner brackets to secure the first-specification flat cable 305 / second-specification flat cable 308, thus enhancing the stability of the outdoor flat cable.

[0103] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0104] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0105] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0106] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A magnetic seal device, characterized by, The door leaf magnetic sealing assembly comprises a door leaf magnetic sealing piece (202) and a metal fixing piece for fixing on a door leaf (200), the door leaf magnetic sealing piece (202) is embedded on the metal fixing piece, and the door leaf magnetic sealing piece (202) is used for magnetic cooperation with the door pocket magnetic sealing piece (306) in a closed state. The door leaf magnetic sealing assembly comprises a door leaf magnetic sealing piece (202) and a metal fixing piece for fixing on a door leaf (200), the door leaf magnetic sealing piece (202) is embedded on the metal fixing piece, and the door leaf magnetic sealing piece (202) is used for magnetic cooperation with the door pocket magnetic sealing piece (306) in a closed state.

2. The magnetic sealing device of claim 1, wherein, The door leaf magnetic sealing assembly comprises a door leaf magnetic sealing piece (202) and a metal fixing piece for fixing on a door leaf (200), the door leaf magnetic sealing piece (202) is embedded on the metal fixing piece, and the door leaf magnetic sealing piece (202) is used for magnetic cooperation with the door pocket magnetic sealing piece (306) in a closed state.

3. The magnetic sealing device of claim 1, wherein, The metal fixing piece of the door leaf magnetic sealing assembly is a door leaf sealing edge (201), the door leaf sealing edge (201) comprises a first fitting part (210) and a second fitting part (220) for fitting on a door leaf side wall, the first fitting part (210) and the second fitting part (220) are not on the same plane with the side surface fitted with the door leaf side wall, the first fitting part (210) and the second fitting part (220) are both provided with a plug nail (2011) for being inserted into a nail groove of the door leaf side wall, and a magnetic piece mounting groove is arranged at the joint of the first fitting part (210) and the second fitting part (220) and on the side opposite to the door leaf side wall, and the door leaf magnetic sealing piece (202) is arranged in the magnetic piece mounting groove. The foamed material part (3062) has a first suction surface, the magnetic piece mounting groove has a second suction surface, in a closed state, the first suction surface corresponds to the second suction surface, the thickness of the foamed material part (3062) at the first suction surface is thinner than that at other positions, and the thickness of the side wall of the magnetic piece mounting groove at the second suction surface is thinner than that at other positions.

4. The magnetic sealing device of claim 3, wherein, The magnetic piece mounting groove has a closed outer side wall, and at least one end of the magnetic piece mounting groove has a plug-in opening for the door leaf magnetic sealing piece (202) to be inserted into. The first fitting part (210) and the second fitting part (220) are connected through a connecting part (230), and the second fitting part (220) is closer to the outdoor side surface of the door leaf (200) than the first fitting part (210). The magnetic piece mounting groove is arranged on the connecting part (230) and close to the side of the second fitting part (220).

5. The magnetic sealing device of claim 3, wherein, The surface of the first fitting part (210) and the second fitting part (220) fitted with the door leaf side wall is provided with a sawtooth (2012); and / or, The outer peripheral surface of the plug nail (2011) is provided with a barb; and / or, The first fitting part (210) is away from one end of the second fitting part (220), and the second fitting part (220) is away from one end of the first fitting part (210), and a first edge covering part (2013) is arranged on the inner and outer surfaces of the door leaf (200).

6. The magnetic sealing device of claim 1, wherein, The metal fixing part of the door leaf magnetic sealing assembly is a magnetic metal fixing part (203), and a clamping groove (2031) is arranged on the magnetic metal fixing part (203). The door leaf magnetic sealing part (202) comprises a magnetic part positioning part (2023), a buffer wrapping sleeve (2021) and a door leaf magnetic strip (2022), the buffer wrapping sleeve (2021) is wrapped outside the door leaf magnetic strip (2022), and is fixed on the magnetic part positioning part (2023), and the magnetic part positioning part (2023) is inserted into the clamping groove (2031). The foaming material part (3062) has a first suction surface, the buffer wrapping sleeve (2021) has a second suction surface, in the closed state, the first suction surface corresponds to the second suction surface, and the thickness of the foaming material part (3062) at the first suction surface is thinner than other positions.

7. The magnetic sealing device of claim 6, wherein, The magnetic metal fixing part (203) comprises a first fixed plate part (2033) and a second fixed plate part (2034), the first fixed plate part (2033) and the second fixed plate part (2034) are perpendicular, an embedded groove is arranged on the outer side wall of the door leaf (200), and the first fixed plate part (2033) and the second fixed plate part (2034) are respectively combined with two side walls of the embedded groove; The clamping groove (2031) is arranged at the joint of the first fixed plate part (2033) and the second fixed plate part (2034), the magnetic part positioning part (2023) has a first positioning plate part combined with the first fixed plate part (2033) and a second positioning plate part combined with the second fixed plate part; The first fixed plate part (2033) is provided with a first clamping arm (20311), the second fixed plate part (2034) is provided with a second clamping arm (20312), a suction area is formed between the first clamping arm (20311) and the second clamping arm (20312), and the second suction surface of the buffer wrapping sleeve (2021) is exposed to the suction area; The first clamping arm (20311), the second clamping arm (20312), the first fixed plate part (2033) and the second fixed plate part (2034) surround the clamping groove (2031), and the distance between the first clamping arm (20311) and the second clamping arm (20312) is less than the distance between the end portions of the first positioning plate part and the second positioning plate part.

8. The magnetic sealing device of claim 7, wherein, The two sides of the adsorption surface of the buffer wrapping sleeve (2021) extend outward to form limiting edge portions, the magnetic attraction piece positioning portions (2023) and the limiting edge portions on the two sides of the adsorption surface of the buffer wrapping sleeve (2021) form first limiting grooves (20211) and second limiting grooves (20212) respectively, the first clamping arms (20311) are embedded in the first limiting grooves (20211), and the second clamping arms (20312) are embedded in the second limiting grooves (20212).

9. A door leaf assembly, characterized in that The door set (300) and the door leaf (200) connected with the door set (300) through a hinge are included, a door leaf side wall of the door leaf (200) is in a stepped structure, so as to form a first door gap (2001) on an outdoor side and a second door gap (2002) on an indoor side between the door set (300) and the door leaf (200), and the first door gap (2001) and the second door gap (2002) are parallel and not on a straight line; The door leaf magnetic sealing assembly is arranged on the door leaf side wall of the door leaf (200), and the door leaf magnetic sealing piece (202) is located at a turning position of the stepped structure of the door leaf side wall, and the door set magnetic sealing piece (306) is arranged on the door set (300).

10. A door leaf assembly according to claim 9, characterised in that, The door set (300) includes: An auxiliary sleeve vertical support (301) is arranged on a side of the door hole wall body (100); An indoor side flat plate line (302) is connected to one side of the auxiliary sleeve vertical support (301) and is located on an indoor side in a thickness direction of the door hole wall body (100); An outdoor side flat plate line is connected to the other side of the auxiliary sleeve vertical support (301) and is located on an outdoor side in the thickness direction of the door hole wall body (100), the outdoor side flat plate line is made of metal, and one side of the outdoor side flat plate line facing the door leaf (200) protrudes from the auxiliary sleeve vertical support (301), so as to form a door closing limiting portion, and the door set magnetic sealing piece (306) is arranged on one side of the door closing limiting portion facing the door leaf (200). The two sides of the adsorption surface of the buffer wrapping sleeve (2021) extend outward to form limiting edge portions, the magnetic attraction piece positioning portions (2023) and the limiting edge portions on the two sides of the adsorption surface of the buffer wrapping sleeve (2021) form first limiting grooves (20211) and second limiting grooves (20212) respectively, the first clamping arms (20311) are embedded in the first limiting grooves (20211), and the second clamping arms (20312) are embedded in the second limiting grooves (20212).

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