Elastic seal, door frame and door structure assembly

Abstract

This utility model relates to the field of sealing equipment technology, and in particular to an elastic sealing strip, a door frame, and a door structure assembly. The elastic sealing strip includes a sealing cavity, a contact edge, and an opening on the contact edge. The opening connects the sealing cavity to the external space. The contact edges on both sides of the opening form two elastically deformable sealing strips, which are used to fit against the sealed surface under pressure. The contact edge of the sealing cavity on the elastic sealing strip has an opening, allowing the contact edge to form two elastically deformable sealing strips. When the sealed surface comes into contact with the elastic sealing strip, the sealing cavity deforms under pressure, and the sealing strips on both sides of the opening elastically deform into the sealing cavity, respectively fitting against different areas of the sealed surface, forming two independent and connected sealing surfaces. Compared with the single-seal technology of the prior art, the two sealing strips form a double barrier, which can effectively improve the sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of sealing equipment technology, and in particular to an elastic sealing strip, a door frame and a door structure component. Background Technology

[0002] With the development of the door and window sealing industry and the improvement of living standards, people have increasingly higher requirements for the sealing performance of doors and windows. In order to improve the sealing effect of doors and windows, elastic sealing strips are often used to enhance the sealing effect, thereby improving the air tightness, water tightness and sound insulation performance of doors and windows. However, most elastic sealing strips in the existing technology can only form a single seal when in contact with the door and window profiles. For example, patent number CN202122008807.8 discloses a door edging profile, door leaf and double door leaf structure, in which the third sealing strip 5 only forms a single sealing surface with the door edging profile after the door is closed, and the sealing performance needs to be improved.

[0003] Based on this, the applicant is considering designing an elastic sealing strip, door frame, and door structure component that can improve sealing performance. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide an elastic sealing strip, door frame and door structure component that can improve sealing performance.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An elastic sealing strip includes a sealing cavity and a contact edge. An opening is provided on the contact edge, which connects the sealing cavity to an external space. The contact edges on both sides of the opening form two elastically deformable sealing strips, which are used to fit against the sealed surface when under pressure.

[0007] The working principle and advantages of the elastic sealing strip in this technical solution are as follows:

[0008] The contact edge of the elastic sealing strip has an opening, forming two elastically deformable sealing strips. When the sealed surface comes into contact with the elastic sealing strip, the sealing cavity is compressed and deformed. The sealing strips on both sides of the opening elastically deform into the sealing cavity and fit into different areas of the sealed surface, forming two independent and connected sealing surfaces. Compared with the single seal of the prior art, the two sealing strips form a double barrier, which can effectively improve the sealing performance.

[0009] Furthermore, the elastic sealing strip also includes a support cavity disposed adjacent to the sealing cavity.

[0010] Furthermore, each of the sealing strips has a stress groove located within the sealing cavity at its root, and the stress groove is formed on the inner sidewall of the sealing cavity.

[0011] Furthermore, the elastic sealing strip includes a first mounting edge and a second mounting edge connected to the contact edge, and the contact edge is inclined.

[0012] Furthermore, a connecting strip is provided on the first mounting edge.

[0013] Furthermore, the elastic sealing strip is integrally molded, with the first mounting edge made of EPDM and the remaining parts made of EPDM foam material.

[0014] A door frame includes a door frame body and the aforementioned elastic sealing strip, wherein the door frame body is provided with a mounting groove, and the elastic sealing strip is fixedly installed in the mounting groove.

[0015] A door structure component includes a door body and the aforementioned door frame, wherein a door edging profile is fixedly installed on the side of the door body.

[0016] Furthermore, the door edging profile includes a contact angle, and the two sides of the contact angle respectively contact the two sealing strips.

[0017] Furthermore, a second elastic sealing strip that contacts the elastic sealing strip is installed on the door edging profile. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the elastic sealing strip according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the door frame structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the door structure component according to an embodiment of the present utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] In the above attached figures:

[0023] 100. Elastic sealing strip; 101. First mounting edge; 102. Second mounting edge; 103. Contact edge; 110. Connecting rubber strip; 120. Support cavity; 121. Opening; 122. Sealing strip; 123. Stress groove; 130. Sealing cavity;

[0024] 200. Door frame body; 210. Mounting slot;

[0025] 300. Door body; 310. Door edging profile; 311. Contact angle; 330. Second elastic sealing strip. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Refer to together Figures 1 to 3 This embodiment provides an elastic sealing strip 100, which includes a sealing cavity 130 and a contact edge 103. An opening 121 is provided on the contact edge 103, which connects the sealing cavity 130 with the external space. The contact edges 103 on both sides of the opening 121 form two elastically deformable sealing strips 122, which are used to fit the sealed surface when under pressure.

[0028] In this embodiment, the contact edge 103 of the sealing cavity 130 on the elastic sealing strip 100 has an opening 121, so that the contact edge 103 forms two elastically deformable sealing strips 122. When the sealed surface comes into contact with the elastic sealing strip 100, the sealing cavity 130 is compressed and deformed. The sealing strips 122 on both sides of the opening 121 elastically deform into the sealing cavity 130 and fit into different areas of the sealed surface, forming two independent and connected sealing surfaces. Compared with the single seal of the prior art, the two sealing strips 122 form a double barrier, which can effectively improve the sealing performance.

[0029] Preferably, such as Figure 1 As shown, the elastic sealing strip 100 also includes a support cavity 120 disposed adjacent to the sealing cavity 130; the support cavity 120 can play a supporting role, preventing the sealing cavity 130 from being over-compressed and collapsing, ensuring that the sealing strip 122 always has sufficient resilience, and maintaining the stability of the double seal.

[0030] Preferably, such as Figure 1As shown, each sealing strip 122 has a stress groove 123 located in the sealing cavity 130 at its root. The stress groove 123 is formed on the inner wall of the sealing cavity 130. When the sealing strip 122 is deformed under pressure, the stress groove 123 absorbs the bending moment stress through local deformation, preventing the root of the sealing strip 122 from cracking or permanently deforming due to stress concentration. This allows the sealing strip 122 to maintain good resilience after long-term use, improving the service life of the elastic sealing strip 100. Furthermore, the stress groove 123 at the root of each sealing strip 122 allows the two sealing strips 122 to deform relatively independently under pressure without interfering with each other, ensuring that each sealing strip 122 can tightly fit the sealed surface.

[0031] Preferably, such as Figure 1 As shown, the elastic sealing strip 100 includes a first mounting edge 101 and a second mounting edge 102 connected to the contact edge 103, and the contact edge 103 is inclined. The elastic sealing strip 100 is installed through the first mounting edge and / or the second mounting edge 102. When sealing, the inclined contact edge 103 can increase the contact area between the two sealing edges and the sealed surface.

[0032] Preferably, such as Figure 1 As shown, a connecting strip 110 is provided on the first mounting edge 101; the connecting strip 110 can securely connect the elastic sealing strip 100 to the mounting location.

[0033] Preferably, such as Figure 1 As shown, the elastic sealing strip 100 is integrally molded, with the first mounting edge 101 made of EPDM and the rest made of EPDM foam material; the elastic sealing strip 100, integrally molded through a composite co-extrusion process, is more durable.

[0034] A type of door frame, such as Figure 2 As shown, it includes a door frame body 200 and the aforementioned elastic sealing strip 100. The door frame body 200 is provided with an installation groove 210, and the elastic sealing strip 100 is fixedly installed in the installation groove 210. The sealing surface of the door frame body 200 (e.g., the position opposite to the door leaf when it is closed) is provided with an installation groove 210. The first installation edge 101 of the elastic sealing strip 100 is bonded and fixed to the bottom of the groove of the installation groove 210 through its connecting adhesive strip 110. The second installation edge 102 abuts against the side wall of the installation groove 210 to form an auxiliary limit. When the door leaf that cooperates with the door frame body 200 is closed, the edge of the door leaf first contacts the inclined contact edge 103 and continues to press, so that the two sealing strips 122 are simultaneously attached and form a double seal.

[0035] A door structure component, such as Figure 3As shown, it includes a door body 300 and the aforementioned door frame. A door edging profile 310 is fixedly installed on the side of the door body 300. When the door body 300, which cooperates with the door frame body 200, is closed, the edge of the door body first contacts the inclined contact edge 103 line and continues to press, so that the two sealing strips 122 are simultaneously attached and form a double seal.

[0036] Preferably, such as Figure 3 As shown, the door edging profile 310 includes a contact angle 311, with the two sides of the contact angle 311 contacting the two sealing strips 122 respectively. The contact angle 311 of the door edging profile 310 is a rigid protrusion with an obtuse angle in cross-section. When the door body 300 is closed, the contact angle 311 pushes the two sealing strips 122 of the elastic sealing strip 100, so that the two sealing strips 122 are respectively attached to the two inclined surfaces of the contact angle 311, forming two “V”-shaped sealing surfaces, which can effectively improve the sealing performance of the door structure components.

[0037] Preferably, such as Figure 3 As shown, a second elastic sealing strip 330 is installed on the door edge profile 310, which contacts the elastic sealing strip 100; when the door body 300 is closed, the second elastic sealing strip 330 installed on the door edge profile 310 contacts the contact edge 103 of the elastic sealing strip 100 on the door frame, forming a third seal, which further improves the sealing performance of the door structure components.

[0038] Specifically, the door body 300 of this solution can directly adopt the door body 300 disclosed in the patent mentioned in the background technology. The door body 300 is also provided with components such as a decorative cover and a first sealing strip.

[0039] Specifically, such as Figures 1 to 3 As shown, the elastic sealing strip 100 is generally triangular prism shaped, the support cavity 120 is generally a right-angled triangular cavity, and the sealing cavity 130 is generally an obtuse-angled triangular cavity. The support cavity 120 and the sealing cavity 130 are arranged vertically.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An elastomeric weatherseal, characterised in that, The elastic sealing strip includes a sealing cavity and a contact edge. An opening is provided on the contact edge, which connects the sealing cavity to the external space. The contact edges on both sides of the opening form two elastically deformable sealing strips, which are used to fit against the sealed surface when under pressure.

2. A resilient weatherstrip as defined in claim 1, wherein The elastic sealing strip also includes a support cavity disposed adjacent to the sealing cavity.

3. A resilient weatherseal as claimed in claim 1, wherein, Each of the sealing strips has a stress groove at its root located within the sealing cavity, and the stress groove is formed on the inner sidewall of the sealing cavity.

4. A resilient weatherseal as claimed in claim 1, wherein, The elastic sealing strip includes a first mounting edge and a second mounting edge connected to the contact edge, and the contact edge is inclined.

5. A resilient sealing strip as claimed in claim 4, characterised in that, A connecting strip is provided on the first mounting edge.

6. A resilient weatherstrip as defined in claim 4 wherein, The elastic sealing strip is integrally molded, with the first mounting edge made of EPDM and the rest made of EPDM foam material.

7. A door frame, characterized in that The invention includes a door frame body and an elastic sealing strip as described in any one of claims 1 to 6, wherein the door frame body is provided with an installation groove, and the elastic sealing strip is fixedly installed in the installation groove.

8. A door construction assembly characterized by The device includes a door body and a door frame as described in claim 7, wherein a door edging profile is fixedly installed on the side of the door body.

9. A door construction assembly as claimed in claim 8, wherein, The door edging profile includes a contact angle, and the two sides of the contact angle respectively contact the two sealing strips.

10. A door construction assembly as defined in claim 8, wherein, A second elastic sealing strip is installed on the door edging profile, which contacts the elastic sealing strip.

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