Sealing strip

Abstract

The utility model provides a sealing strip, and belongs to the technical field of door and window sealing strips. According to the sealing strip provided by the utility model, the supporting framework is clamped in the groove in the door frame door stop strip, so that the supporting framework and the door frame door stop strip are clamped together, meanwhile, the clamping groove is formed between the convex part and the supporting framework, and the door frame door stop strip is clamped by the clamping groove; the sealing strip body seals the gap between the door frame door stop strip and the door leaf, and the sealing strip body is connected with the door frame door stop strip more firmly under the combined action of the supporting framework and the clamping groove, so that the sealing strip body is prevented from shaking in the back-and-forth opening and closing process of the door leaf, and the sealing performance of the sealing strip is prevented from being affected.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window sealing strips, and specifically relates to a sealing strip. Background Technology

[0002] Door frame sealing strips are mainly used for sealing mechanisms on doors and windows made of PVC, aluminum alloy, wood, etc. They play an important role in waterproofing, sealing and energy saving. Some also have the functions of sound insulation, dust prevention, insect prevention, frost prevention, heat preservation and fire prevention.

[0003] In modern households, door frame sealing strips are mostly used in kitchens, bathrooms, doors, and floor-to-ceiling windows. Therefore, the door frame is required to have good airtightness, wear resistance, high durability, strong tensile strength, and anti-aging properties.

[0004] Because there are gaps between the door leaf and the door frame uprights, as well as between the door frame and the door stop strip, the existing patent with publication number CN201125658Y discloses a sealing strip. This sealing strip can only seal the gap between the door frame uprights and the door leaf, and cannot seal the gap between the door frame and the door leaf at the same time, resulting in poor sound insulation, fire prevention, or anti-fog effect. At the same time, because the door leaf needs to be opened or closed frequently, the shaking caused by long-term opening and closing will reduce the connection firmness of the sealing strip, thereby affecting the sealing performance. Utility Model Content

[0005] This utility model provides a sealing strip that aims to solve the technical problem in the prior art where long-term opening and closing causes shaking, which reduces the connection firmness of the sealing strip and thus affects the sealing performance.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sealing strip is provided, which includes not only a sealing strip body and a supporting frame, the supporting frame being fixed on the sealing strip body, but also a protrusion, the protrusion being fixed on the sealing strip body, and the protrusion being located on one side of the supporting frame and spaced apart from the supporting frame, the protrusion and the supporting frame forming a slot, the slot being used to engage the door frame door stop strip.

[0007] In one possible implementation, the protrusion is a semi-circular structure.

[0008] In one possible implementation, the seal body includes a fixing part, a pressure-bearing part, and a supporting part; the pressure-bearing part is fixedly connected to the fixing part, and the supporting part is fixedly connected to the fixing part, with the pressure-bearing part and the supporting part fixedly disposed on both sides of the fixing part at a distance; the pressure-bearing part is inclinedly disposed on the fixing part, and the supporting part has a bent part at one end away from the fixing part, the top surface of the bent part is set at an angle to the fixing part, and the pressure-bearing part and the bent part are correspondingly disposed; the fixing part, the pressure-bearing part, the supporting part, and the bent part form a receiving cavity, and a notch is provided between the pressure-bearing part and the bent part, the notch communicating with the receiving cavity;

[0009] The supporting frame is fixed to the side of the fixed part away from the pressure-bearing part.

[0010] In one possible implementation, one end of the support frame extends into the interior of the fixing part, and the other end of the support frame is provided with an elastic body connected to the support frame.

[0011] In one possible implementation, one end of the elastomer is connected to the outer surface of the support frame, and the other end of the elastomer has a degree of freedom of movement.

[0012] In one possible implementation, the tail end of the other end of the support frame is provided with a hook.

[0013] In one possible implementation, the end of the pressure-bearing portion has a structure with gradually decreasing thickness.

[0014] In one possible implementation, the support frame further includes a first extension and a second extension. The first extension is horizontally disposed and one end of the support frame is connected to the first extension. The second extension is connected to the other end of the first extension and is disposed within the support portion. The second extension and the first extension are disposed at an angle.

[0015] In one possible implementation, the support portion has a gradually tapering structure, with the thickness of the end of the support portion near the fixing portion being greater than the thickness of the other end of the support portion away from the fixing portion.

[0016] In one possible implementation, the sealing strip includes an elastic foam material and a film covering the elastic foam material.

[0017] Compared with the prior art, the solution shown in this application embodiment uses a support frame to engage with the groove on the door frame and door stop strip, so that the support frame and the door frame and door stop strip are engaged together. At the same time, the protrusion and the support frame form a groove, which engages the door frame and door stop strip. The sealing strip body seals the gap between the door frame and door stop strip and the door leaf. Under the combined action of the support frame and the groove, the sealing strip body is more firmly connected to the door frame and door stop strip, thereby preventing the sealing strip body from shaking during the opening and closing of the door leaf and avoiding affecting the sealing performance of the sealing strip. Attached Figure Description

[0018] Figure 1 A cross-sectional view of the sealing strip provided in an embodiment of this utility model;

[0019] Figure 2 A schematic diagram illustrating the installation of the sealing strip provided in this embodiment of the utility model;

[0020] Figure 3 for Figure 2 Enlarged schematic diagram of region A in the middle;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Fixing part; 11. Protrusion; 12. Slot; 13. Pressure bearing part; 14. Supporting part; 15. Bending part; 16. Receiving cavity; 17. Notch; 2. Support frame; 21. Elastomer; 22. Hook; 23. First extension; 24. Second extension; 100. Door frame upright; 101. Door frame door stop strip; 102. Door leaf; 103. Groove. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] It should be further explained that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0025] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] The terms “length,” “width,” “thickness,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Please refer to the following: Figure 1 and Figure 2 The sealing strip provided by this utility model will now be described.

[0028] A sealing strip includes not only a sealing strip body and a support frame 2, with the support frame 2 fixedly attached to the sealing strip body, but also a protrusion 11. The protrusion 11 is fixedly attached to the sealing strip body and is located on one side of the support frame 2 and spaced apart from the support frame 2. The protrusion 11 and the support frame 2 form a slot 12, which is used to engage the door frame door stop strip 101.

[0029] Compared with the prior art, the sealing strip provided in this embodiment utilizes the support frame 2 to engage with the groove 103 on the door frame door stop 101, so that the support frame 2 and the door frame door stop 101 are engaged together. At the same time, the protrusion 11 and the support frame 2 form a groove 12, which engages the door frame door stop 101. The sealing strip body seals the gap between the door frame door stop 101 and the door leaf 102. Under the combined action of the support frame 2 and the groove 12, the sealing strip body is more firmly connected to the door frame door stop 101, thereby preventing the sealing strip body from shaking during the opening and closing of the door leaf 102 and avoiding affecting the sealing performance of the sealing strip.

[0030] Furthermore, the protrusion 11 has a semi-circular structure.

[0031] Based on the above embodiments, the seal body includes a fixing part 1, a pressure-bearing part 13, and a supporting part 14. The pressure-bearing part 13 is fixedly connected to the fixing part 1, and the supporting part 14 is fixedly connected to the fixing part 1, with the pressure-bearing part 13 and the supporting part 14 fixedly disposed on both sides of the fixing part 1 at intervals. The pressure-bearing part 13 is inclinedly disposed on the fixing part 1, and the supporting part 14 is also provided with a bent part 15 at the end away from the fixing part 1. The top surface of the bent part 15 is set at an angle to the fixing part 1, and the pressure-bearing part 13 and the bent part 15 are correspondingly disposed. The fixing part 1, the pressure-bearing part 13, the supporting part 14, and the bent part 15 form a receiving cavity 16, and a notch 17 is provided between the pressure-bearing part 13 and the bent part 15, and the notch 17 communicates with the receiving cavity 16. Among them, the supporting frame 2 is fixedly disposed on the side of the fixing part 1 away from the pressure-bearing part 13.

[0032] Specifically, the top surface of the pressure-bearing part 13 is flush with the top surface of the bending part 15.

[0033] The sealing strip is engaged with the door frame door stop strip 101 by the support frame 2, thus engaging the support frame 2 with the door frame door stop strip 101. The pressure-bearing part 13 is located in the gap between the door frame door stop strip 101 and the door leaf 102, while the support part 14 and the bending part 15 are located between the door leaf 102 and the door frame upright 100. When the door leaf 102 is closed, the sealing strip is compressed. The pressure-bearing part 13 is compressed towards the side closer to the fixing part 1, thereby sealing the gap between the door leaf 102 and the door frame door stop strip 101. The bending part 15 is compressed towards the side closer to the support part 14, thereby sealing the gap between the door leaf 102 and the door frame upright 100. This achieves sound insulation, fire prevention, and smoke prevention effects, solving the technical problem in the prior art where the sealing strip can only seal the gap between the door frame door stop strip 101 and the door leaf 102, and cannot simultaneously seal the gap between the door frame upright 100 and the door leaf 102.

[0034] Specifically, the cross-section of the seal body has a triangular structure.

[0035] In some embodiments, the aforementioned support frame 2 may adopt the following... Figure 1 The structure shown. See also Figure 1 One end of the support frame 2 extends into the interior of the fixing part 1, and the other end of the support frame 2 is provided with an elastic body 21 connected to the support frame 2.

[0036] Specifically, the elastomer 21 is disposed on the side of the support frame 2 away from the protrusion 11.

[0037] Furthermore, one end of the elastomer 21 is connected to the outer surface of the support frame 2, and the other end of the elastomer 21 has a degree of freedom of movement.

[0038] When the support frame 2 extends into the groove 103 between the door frame and the door stop strip 101, one end of the elastic body 21 abuts against the inner wall of the groove 103. Since the elastic body 21 has a degree of freedom of movement, it deforms after extending into the groove 103. Simultaneously, due to the elasticity of the elastic body 21, it compresses the inner wall of the groove 103, ultimately securing the support frame 2 within the groove 103. When disassembly is required, simply apply external pulling force to remove the sealing strip from the groove 103.

[0039] In other embodiments, a hook 22 is provided at the tail end of the other end of the support frame 2. The hook 22 is located on the side of the support frame 2 away from the elastic member. When one end of the elastic member abuts against the inner wall of the groove 103, the hook 22 abuts against the inner wall of the other side of the groove 103, thereby better engaging the support frame 2 with the groove 103.

[0040] Specifically, the end of the pressure-bearing part 13 has a structure with gradually decreasing thickness.

[0041] When the end of the pressure-bearing part 13 has a gradually shrinking thickness structure, the pressure-bearing part 13 can be folded higher after being squeezed by the door leaf 102, avoiding interference between the end of the pressure-bearing part 13 and the fixing part 1, so as not to affect the sealing of the pressure-bearing part 13 and the normal opening or closing of the door leaf 102.

[0042] Based on the above embodiment, the support frame 2 further includes a first extension 23 and a second extension 24. The first extension 23 is horizontally arranged and one end of the support frame 2 is connected to the first extension 23. The second extension 24 is connected to the other end of the first extension 23 and is disposed within the support portion 14, forming an angle with the first extension 23. The arrangement of the first extension 23 and the second extension 24 makes the connection between the support frame 2 and the sealing strip body more secure.

[0043] In some embodiments, the support portion 14 has a gradually tapering thickness, with the thickness of the end of the support portion 14 near the fixing portion 1 being greater than the thickness of the end of the support portion 14 away from the fixing portion 1. This arrangement allows the end of the support portion 14 away from the fixing portion 1 to have better freedom of movement, while also making the connection between the support portion 14 and the fixing portion 1 more secure, preventing breakage at that point due to stress concentration between the support portion 14 and the fixing portion 1.

[0044] Specifically, the end of the support portion 14 away from the fixing portion 1 is inclined towards the outer side of the support portion 14. This arrangement allows the end of the support portion 14 away from the fixing portion 1 to be squeezed and deformed inward when the support portion 14 is connected to the door frame upright 100, thereby improving the sealing performance of the bent portion 15 in the gap between the door frame upright 100 and the door leaf 102.

[0045] Specifically, the cavity 16 has multiple chamfers.

[0046] Specifically, the corners on the outer periphery of the sealing strip are chamfered. This design helps to avoid stress concentration at the corners.

[0047] Based on the above embodiments, the sealing strip includes an elastic foam material and a film covering the elastic foam material.

[0048] The elastic foam is made of ultra-high resilience polyurethane (PU), and the coating is made of polypropylene (PE) film.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing strip, comprising a sealing strip body and a supporting frame (2), wherein the supporting frame (2) is fixedly disposed on the sealing strip body, characterized in that, It also includes a protrusion (11), which is fixed on the seal body and located on one side of the support frame (2) and spaced apart from the support frame (2). The protrusion (11) and the support frame (2) form a slot (12), which is used to engage the door frame door stop (101).

2. The sealing strip as described in claim 1, characterized in that, The protrusion (11) has a semi-circular structure.

3. The sealing strip as described in claim 1, characterized in that, The seal body includes a fixing part (1), a pressure-bearing part (13), and a supporting part (14); the pressure-bearing part (13) is fixedly connected to the fixing part (1), and the supporting part (14) is fixedly connected to the fixing part (1), and the pressure-bearing part (13) and the supporting part (14) are fixedly disposed on both sides of the fixing part (1) at intervals; the pressure-bearing part (13) is inclined on the fixing part (1), and the supporting part (14) is located at one end away from the fixing part (1). It is also provided with a bending part (15), the top surface of the bending part (15) is set at an angle to the fixing part (1), and the pressure-bearing part (13) is set correspondingly to the bending part (15); the fixing part (1), the pressure-bearing part (13), the support part (14) and the bending part (15) form a receiving cavity (16), and a notch (17) is provided between the pressure-bearing part (13) and the bending part (15), and the notch (17) is connected to the receiving cavity (16); The supporting frame (2) is fixed to the side of the fixing part (1) away from the pressure-bearing part (13).

4. The sealing strip as described in claim 3, characterized in that, One end of the support frame (2) extends into the interior of the fixing part (1), and the other end of the support frame (2) is provided with an elastic body (21) connected to the support frame (2).

5. The sealing strip as described in claim 4, characterized in that, One end of the elastomer (21) is connected to the outer side of the support frame (2), and the other end of the elastomer (21) has a degree of freedom of movement.

6. The sealing strip as described in claim 1, characterized in that, The other end of the support frame (2) is provided with a hook (22).

7. The sealing strip as described in claim 3, characterized in that, The end of the pressure-bearing part (13) has a structure with gradually decreasing thickness.

8. The sealing strip as described in claim 3, characterized in that, The support frame (2) further includes a first extension (23) and a second extension (24). The first extension (23) is horizontally arranged and one end of the support frame (2) is connected to the first extension (23). The second extension (24) is connected to the other end of the first extension (23). The second extension (24) is located inside the support (14). The second extension (24) and the first extension (23) are arranged at an angle.

9. The sealing strip as described in claim 8, characterized in that, The support part (14) has a structure with gradually decreasing thickness. The thickness of the support part (14) at the end near the fixing part (1) is greater than the thickness of the support part (14) at the other end away from the fixing part (1).

10. The sealing strip as described in claim 1, characterized in that, The sealing strip includes elastic foam material and a film covering the elastic foam material.

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