Foldable sealing strip for door

Abstract

The utility model relates to the technical field of sealing strips, and discloses a foldable sealing strip for a door, which is applied between a door frame and a door leaf and comprises a first sealing part and a second sealing part which are integrally connected. The first sealing part is used for being bonded to the face, corresponding to a door leaf, of a door frame, and the connecting position of the second sealing part and the first sealing part can be folded. When the door leaf is buckled to the door frame, the first sealing part can abut against the large face, corresponding to the door frame, of the door leaf, and then the door leaf and the door frame are correspondingly sealed. The second sealing part can abut against the side vertical face, corresponding to the door frame, of the door leaf, and then the side vertical face of the door leaf and the side vertical face of the door frame are sealed. Therefore, two seals can be formed after the door leaf is closed. Compared with the mode that the sealing strip is only installed between the large face of the door leaf and the corresponding face of the door frame, the sealing part is additionally arranged between the corresponding side vertical faces of the door leaf and the door frame, and the gap enlarged between the door leaf and the door frame due to deformation of the door leaf can be sealed all the time. Therefore, the sealing effect is improved, and the problems of air inlet, dust inlet, noise and the like are effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of sealing strips, for example, to a foldable sealing strip for doors. Background Art

[0002] Sealing strips play an important role in waterproofing, sealing and energy saving in plastic-steel doors and windows, thermally-insulated aluminum doors and windows, and wooden doors and windows. They are also soundproof, dustproof, antifreeze, and warm. They must have strong tensile strength, good elasticity, and relatively good temperature resistance and aging resistance. In order to ensure the fastening of the strips and profiles, the cross-sectional structural dimensions of the strips must match the profiles of plastic-steel doors and windows. Sealing strips are generally used for casement doors and windows, hanging windows, and folding doors and windows. The main functions are dustproof, insect-proof, waterproof, soundproof, and sealing.

[0003] However, the sealing of household entrance doors and door frames involves the problem of preventing wind and dust from entering and sound insulation, which has not been completely solved. This is mainly because the existing sealing strip is pressed between the large surface of the door leaf and the corresponding surface of the door frame, and the gaps between door leaves and frames produced by different manufacturers are different in size. In addition, the large surface of the door is prone to deformation, making the gap more abnormal, resulting in the sealing effects of existing sealing strips varying greatly.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The disclosed embodiment provides a foldable sealing strip for a door to improve the sealing effect.

[0007] In some embodiments, the foldable sealing strip for doors is applied between a door frame and a door leaf, and includes a first sealing portion and a second sealing portion. The first sealing portion is used to bond with the surface of the door frame corresponding to the door leaf; the second sealing portion is connected to the first sealing portion, and the connection between the second sealing portion and the first sealing portion can be folded with each other; wherein, after the first sealing portion is bonded with the surface of the door frame corresponding to the door leaf, the second sealing portion is bonded with the door frame, and the bonding surface of the first sealing portion and the door frame and the bonding surface of the second sealing portion and the door frame are perpendicular to each other.

[0008] Optionally, it also includes: the first sealing portion includes a first bending strip; the second sealing portion includes a second bending strip connected to the first bending strip; wherein, after the door leaf is buckled into the door frame, the bending portions of the first bending strip and the second bending strip are deformed.

[0009] Optionally, the first bending strip includes a C-shaped sealing strip; the second bending strip includes a V-shaped sealing strip; wherein, after the door leaf is buckled into the door frame, the openings of the C-shaped sealing strip and the V-shaped sealing strip are compressed.

[0010] Optionally, the C-type sealing strip includes: a first straight section, used for bonding to the surface of the door frame corresponding to the door leaf; an oblique extension section, used for abutting against the door leaf; and a vertical section, connected between the first straight section and the oblique extension section; wherein, after the door leaf is buckled into the door frame, the oblique extension section moves toward the first straight section.

[0011] Optionally, the V-shaped sealing strip includes: a second straight section connected to the first straight section; a wedge-shaped section fitted with the door frame; and an arched section connected between the second straight section and the wedge-shaped section and used to abut against the door leaf; wherein, after the door leaf is buckled into the door frame, the wedge-shaped section moves toward the second straight section.

[0012] Optionally, a groove is formed at the connection between the first straight section and the second straight section; wherein the second sealing portion and the first sealing portion are folded along the groove.

[0013] Optionally, the groove comprises: a V-shaped groove, an angle is formed between two groove surfaces of the V-shaped groove, and the angle of the angle is greater than or equal to 90°.

[0014] Optionally, it also includes: adhesive backing adhered to the first straight section for bonding the door frame.

[0015] Optionally, it also includes: a PE film, wrapped around the first sealing part and the second sealing part.

[0016] The foldable sealing strip for a door provided in the embodiment of the present disclosure can achieve the following technical effects:

[0017] The embodiment of the present disclosure provides a foldable sealing strip for doors used between a door frame and a door leaf, comprising a first sealing portion and a second sealing portion that are integrally connected. The first sealing portion is used to bond with the surface of the door leaf corresponding to the door frame, and when the door leaf is closed, it is used to seal the large surface corresponding to the door leaf and the door frame. The connection between the second sealing portion and the first sealing portion can be folded with each other, and after folding, they can be fitted with the other surface of the door frame, and are used to seal the side elevation corresponding to the door leaf and the door frame. During installation on the door frame, after the first sealing portion is bonded with the surface of the door leaf corresponding to the door frame, the second sealing portion is fitted with the door frame. In addition, the bonding surface between the first sealing portion and the door frame and the fitting surface between the second sealing portion and the door frame are perpendicular to each other, so that the first sealing portion and the second sealing portion can only be attached to the inner groove angle edge of the door frame.

[0018] When the door leaf is buckled into the door frame, the first sealing part will abut against the corresponding large surface of the door leaf and the door frame, thereby sealing the corresponding surface of the door leaf and the door frame. The second sealing part will abut against the corresponding side surface of the door leaf and the door frame, thereby sealing the side surface of the door leaf and the door frame. In this way, two seals can be formed after the door leaf is closed. Compared with the method of only installing the sealing strip between the large surface of the door leaf and the corresponding surface of the door frame, by adding a sealing part between the corresponding side surface of the door leaf and the door frame, the gap between the door leaf and the door frame that increases due to deformation can be always sealed. Thereby improving the sealing effect and effectively solving the problems of air inlet, dust inlet and noise.

[0019] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0021] Figure 1 It is a structural schematic diagram of a foldable sealing strip for a door provided in an embodiment of the present disclosure;

[0022] Figure 2 It is a schematic diagram of the structure of a foldable sealing strip for a door after being folded, provided by an embodiment of the present disclosure;

[0023] Figure 3 It is a structural schematic diagram of a foldable sealing strip for a door provided by an embodiment of the present disclosure after being installed on a door frame;

[0024] Figure 4 It is a structural schematic diagram of a foldable door sealing strip provided by an embodiment of the present disclosure, in which a door frame is installed with door leaves buckled together.

[0025] Reference numerals:

[0026] 10: door frame; 20: door leaf; 30: first sealing portion; 31: first straight section; 32: obliquely extending section; 33: vertical section; 40: second sealing portion; 41: second straight section; 42: wedge-shaped section; 43: arched section; 50: groove; 60: adhesive backing. DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0029] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0030] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Unless otherwise stated, the term "plurality" means two or more.

[0032] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0033] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0035] Combination Figures 1 to 4 As shown, the embodiment of the present disclosure provides a foldable sealing strip for a door, which is applied between a door frame 10 and a door leaf 20, and includes a first sealing portion 30 and a second sealing portion 40. The first sealing portion 30 is used to bond with the surface of the door frame 10 corresponding to the door leaf 20. The second sealing portion 40 is connected to the first sealing portion 30, and the connection between the second sealing portion 40 and the first sealing portion 30 can be folded with each other. Among them, after the first sealing portion 30 is bonded to the surface of the door frame 10 corresponding to the door leaf 20, the second sealing portion 40 is attached to the door frame 10, and the bonding surface of the first sealing portion 30 and the door frame 10 and the bonding surface of the second sealing portion 40 and the door frame 10 are perpendicular to each other.

[0036] The embodiment of the present disclosure provides a foldable sealing strip for a door used between a door frame 10 and a door leaf 20, comprising a first sealing portion 30 and a second sealing portion 40 connected in an integral manner. The first sealing portion 30 is used to bond with the surface of the door frame 10 corresponding to the door leaf 20, and when the door leaf 20 is closed, it is used to seal the large surface corresponding to the door leaf 20 and the door frame 10. The connection between the second sealing portion 40 and the first sealing portion 30 can be folded with each other, and after folding, it is affixed with the other surface of the door frame 10, and is used to seal the side elevation corresponding to the door leaf 20 and the door frame 10. During the installation process on the door frame 10, after the first sealing portion 30 is bonded with the surface of the door frame 10 corresponding to the door leaf 20, the second sealing portion 40 is affixed with the door frame 10. And the bonding surface of the first sealing portion 30 and the door frame 10 and the affixing surface of the second sealing portion 40 and the door frame 10 are perpendicular to each other, so that the first sealing portion 30 and the second sealing portion 40 can only be attached to the inner groove angle edge of the door frame 10.

[0037] When the door leaf 20 is buckled into the door frame 10, the first sealing portion 30 will abut against the corresponding large surface of the door leaf 20 and the door frame 10, thereby sealing the corresponding surface of the door leaf 20 and the door frame 10. The second sealing portion 40 will abut against the corresponding side surface of the door leaf 20 and the door frame 10, thereby sealing the side surface of the door leaf 20 and the door frame 10. In this way, two seals can be formed after the door leaf 20 is closed. Compared with the method of only installing the sealing strip between the large surface of the door leaf 20 and the corresponding surface of the door frame 10, by adding a sealing portion between the corresponding side surfaces of the door leaf 20 and the door frame 10, the gap between the door leaf 20 and the door frame 10 that is enlarged due to the deformation of the door leaf 20 can be always sealed. Thereby improving the sealing effect, effectively solving the problems of air inlet, dust inlet and noise.

[0038] Optionally, combined Figures 1 to 4 As shown, the first sealing portion 30 includes a first bending strip. The second sealing portion 40 includes a second bending strip connected to the first bending strip. After the door leaf 20 is buckled into the door frame 10, the bending portions of the first bending strip and the second bending strip are deformed.

[0039] In the disclosed embodiment, the first sealing portion 30 includes a first bending strip, and the second sealing portion 40 includes a second bending strip connected to the first bending strip. After the door leaf 20 is buckled on the door frame 10, the first bending strip and the second bending strip are pressed together under the action of external force, so that the bending portions of the first bending strip and the second bending strip are deformed. This can play a role of replacement and ensure the sealing effect.

[0040] Optionally, combined Figures 1 to 4 As shown, the first bending strip includes a C-shaped sealing strip. The second bending strip includes a V-shaped sealing strip. After the door leaf 20 is buckled into the door frame 10, the openings of the C-shaped sealing strip and the V-shaped sealing strip are compressed.

[0041] In the disclosed embodiment, the first bending strip and the second bending strip include a C-shaped sealing strip and a V-shaped sealing strip, respectively. After the door leaf 20 is buckled on the door frame 10, the openings of the C-shaped sealing strip and the V-shaped sealing strip are compressed. The first bending strip and the second bending strip are respectively designed in a C-shaped and a V-shaped design, which can facilitate the first bending strip and the second bending strip to be pressed by the door leaf 20.

[0042] Optionally, combined Figures 1 to 4 As shown, the C-shaped sealing strip includes a first straight section 31, an oblique extension section 32 and a vertical section 33. The first straight section 31 is used to bond with the surface of the door frame 10 corresponding to the door leaf 20. The oblique extension section 32 is used to abut against the door leaf 20. The vertical section 33 is connected between the first straight section 31 and the oblique extension section 32. After the door leaf 20 is buckled with the door frame 10, the oblique extension section 32 moves toward the first straight section 31.

[0043] In the disclosed embodiment, the C-shaped sealing strip includes a first straight section 31, an oblique extension section 32, and a vertical section 33 connected between the first straight section 31 and the oblique extension section 32. The first straight section 31 is used to bond with the surface of the door frame 10 corresponding to the door leaf 20 to fix the entire sealing strip to the door frame 10. The oblique extension section 32 is used to abut against the door leaf 20 to achieve a sealing effect. The vertical section 33 is connected between the first straight section 31 and the oblique extension section 32, and together with the straight section and the oblique extension section 32, forms a C-shaped structure. Among them, after the door leaf 20 is buckled into the door frame 10, the oblique extension section 32 will first abut against the door leaf 20. Then, driven by the door leaf 20 and supported by the vertical section 33, the oblique extension section 32 can move toward the first straight section 31. It can play a buffering role, so that it can always fit with the large surface of the door frame 10 corresponding to the door leaf 20, thereby ensuring the sealing effect.

[0044] Optionally, combined Figures 1 to 4 As shown, the V-shaped sealing strip includes a second straight section 41, a wedge section 42 and an arch section 43. The second straight section 41 is connected to the first straight section 31. The wedge section 42 is fitted with the door frame 10. The arch section 43 is connected between the second straight section 41 and the wedge section 42, and is used to abut against the door leaf 20. After the door leaf 20 is buckled with the door frame 10, the wedge section 42 moves toward the second straight section 41.

[0045] In the disclosed embodiment, the V-shaped sealing strip includes a second straight section 41, a wedge section 42, and an arched section 43 connected between the second straight section 41 and the wedge section 42. The second straight section 41 is connected to the first straight section 31 and fits with the door frame 10. The wedge section 42 fits with the door frame 10 and can move along the door frame 10. The arched section 43 is used to abut against the door leaf 20. After the door leaf 20 is buckled into the door frame 10, the arched section 43 first abuts against the door leaf 20. Then, driven by the door leaf 20 and supported by the second straight section 41, the arched section 43 can be flattened. It can play a buffering role, so that it can always fit with the side elevation of the door frame 10 corresponding to the door leaf 20, thereby ensuring the sealing effect. In addition, the design of the wedge section 42 can better introduce the end of the V-shaped sealing strip into the gap between the side elevation of the door leaf 20 and the door frame 10, thereby avoiding direct interference.

[0046] Optionally, combined Figures 1 to 4 As shown, a groove 50 is formed at the connection between the first straight section 31 and the second straight section 41 . The second sealing portion 40 and the first sealing portion 30 are folded along the groove 50 .

[0047] In the embodiment of the present disclosure, a groove 50 is formed at the connection between the first straight section 31 and the second straight section 41. The design of the groove 50 can facilitate folding the second sealing portion 40 and the first sealing portion 30 and then installing them on the door frame 10.

[0048] Optionally, combined Figures 1 to 4 As shown, the groove 50 comprises a V-shaped groove. An angle is formed between two groove surfaces of the V-shaped groove, and the angle is greater than or equal to 90°.

[0049] In the embodiment of the present disclosure, the groove 50 comprises a V-shaped groove. An angle greater than or equal to 90° is formed between the two groove surfaces of the V-shaped groove, so that after the first sealing portion 30 and the second sealing portion 40 are folded together and installed on the door frame 10, a gap can be left at the folding position. This facilitates installation and can adapt to the angle change of the two surfaces of the door frame 10.

[0050] Optionally, combined Figures 1 to 4 As shown, it also includes adhesive 60. The adhesive 60 is adhered to the first straight section 31 and is used to adhere the door frame 10.

[0051] In the embodiment of the present disclosure, a backing adhesive 60 is further included which is adhered to the first straight section 31. The backing adhesive 60 is used to adhere to the door frame 10 so as to fix the entire sealing strip to the door frame 10.

[0052] Optionally, combined Figures 1 to 4 As shown, a PE film is also included. The PE film is coated on the first sealing part 30 and the second sealing part 40.

[0053] In the embodiment of the present disclosure, a PE film is also included which is coated on the first sealing part 30 and the second sealing part 40. The PE film has better strength and toughness, so as to adapt to the wear of the sealing strip caused by frequent opening and closing of the door.

[0054] Optionally, combined Figures 1 to 4 As shown, it also includes polyurethane foam elastic material. The polyurethane foam elastic material is filled inside the PE film. The polyurethane foam elastic material and the PE film constitute the first sealing part 30 and the second sealing part 40.

[0055] In the embodiment of the present disclosure, a polyurethane foam elastic material is also included to fill the inside of the PE film. The polyurethane foam elastic material has better elasticity and anti-aging function, thereby solving the problem that rubber products are prone to aging and lose elasticity, which affects the sealing quality.

[0056] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A foldable sealing strip for a door, applied between a door frame and a door leaf, characterized in that: include: A first sealing portion, used for bonding with a surface of the door frame corresponding to the door leaf; A second sealing portion connected to the first sealing portion, wherein the connection between the second sealing portion and the first sealing portion can be folded with each other; Among them, after the first sealing part is bonded to the surface of the door frame corresponding to the door leaf, the second sealing part is fitted to the door frame, and the bonding surface of the first sealing part and the door frame and the fitting surface of the second sealing part and the door frame are perpendicular to each other.

2. A foldable sealing strip for a door according to claim 1, characterized in that: The first sealing portion includes a first bending strip; The second sealing portion includes a second bending strip connected to the first bending strip; Wherein, after the door leaf is buckled onto the door frame, the bending parts of the first bending strip and the second bending strip are deformed.

3. A foldable sealing strip for a door according to claim 2, characterized in that: The first bending strip comprises a C-shaped sealing strip; The second bending strip comprises a V-shaped sealing strip; Wherein, after the door leaf is buckled onto the door frame, the openings of the C-shaped sealing strip and the V-shaped sealing strip are compressed.

4. A foldable sealing strip for a door according to claim 3, characterized in that: The C-type sealing strip comprises: A first straight section is used for bonding with the surface of the door frame corresponding to the door leaf; An oblique extension section, used to abut against the door leaf; A vertical section connected between the first straight section and the obliquely extending section; Wherein, after the door leaf is buckled into the door frame, the obliquely extending section moves toward the first straight section.

5. A foldable sealing strip for a door according to claim 4, characterized in that: The V-shaped sealing strip comprises: a second straight section connected to the first straight section; A wedge-shaped section, fitted with the door frame; an arched section, connected between the second straight section and the wedge-shaped section, and used to abut against the door leaf; Wherein, after the door leaf is buckled into the door frame, the wedge-shaped section moves toward the second straight section.

6. A foldable sealing strip for a door according to claim 5, characterized in that: A groove is formed at the connection between the first straight section and the second straight section; Wherein, the second sealing portion and the first sealing portion are folded along the groove.

7. A foldable sealing strip for a door according to claim 6, characterized in that: The groove comprises: A V-shaped groove, wherein an angle is formed between two groove surfaces of the V-shaped groove, and the angle of the angle is greater than or equal to 90°.

8. A foldable sealing strip for a door according to claim 4, characterized in that: Also includes: The adhesive backing is adhered to the first straight section and is used for bonding the door frame.

9. A foldable sealing strip for a door according to any one of claims 1 to 8, characterized in that: Also includes: The PE film is coated on the first sealing part and the second sealing part.

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