A type of insect-proof and heat-insulating strip under the door

Abstract

This utility model relates to the field of hardware accessories technology and discloses a door under-door insect-proof and heat-insulating strip, including a door body and a strip body. A guide groove is provided at one end of the strip body away from the door body, and a sealing component is provided at the other end. This door under-door insect-proof and heat-insulating strip, through the design of the guide block and guide groove, allows for quick installation of the sealing component. After prolonged use, it is easy to clean or replace, making it highly practical. The design of three sealing strips (seal strip one, seal strip two, and seal strip three) of different lengths allows for stepped contact with the ground, constructing multiple sealing lines. When external airflow or insects attempt to enter through the gap under the door, they must successively overcome the obstruction of the three sealing strips. This effectively blocks the heat conduction path, achieving efficient heat insulation, and completely prevents insects from entering, solving the problem of incomplete blocking by traditional single sealing strips.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories technology, specifically a door under-insulation and heat-insulating strip. Background Technology

[0002] Door under-seal and heat-insulating strips are practical accessories installed at the bottom of doors to effectively solve common household gap problems. They are typically made of flexible and durable materials such as silicone and EVA, offering excellent sealing and anti-aging properties. Suitable for various door types, including wooden doors and security doors, they are simply attached to the bottom of the door using adhesive or clips to tightly seal the gap between the door and the floor. On one hand, they prevent outdoor insects and dust from entering the room through the gaps, creating a clean environment. On the other hand, they reduce the exchange of hot and cold air between indoors and outdoors, insulating against heat in summer and retaining warmth in winter, thus improving the efficiency of air conditioning or heating and reducing energy consumption. Simultaneously, they buffer the noise of closing the door and prevent damage from friction between the door bottom and the floor. Combining practicality and protection, they are a convenient and useful item for enhancing home comfort.

[0003] Chinese Utility Model Patent Publication No. CN209637608U discloses a door under-insect and heat-insulating strip. The specification states that, in use, the bottom of a connecting strip coated with a strong adhesive layer is pasted to the bottom of the door. The hollow insect-proof and heat-insulating round strips at both ends prevent insects from passing through and provide good heat insulation. A hollow compressible tube can also be installed in the middle of the connecting strip to facilitate adjustment of the installation width according to the door's width. However, this door under-insect and heat-insulating strip uses a single-layer sealing strip for blocking, which is incomplete. Furthermore, it lacks a designed installation structure for sealing components, making it inconvenient to clean or replace after prolonged use. Its practicality is poor, hindering its widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a door under-door insect-proof and heat-insulating strip, which can effectively solve the problems of existing technology that uses a single-layer sealing strip for blocking, the strip is not completely blocked, and there is no design for the installation structure of the sealing component. After long-term use, it is not convenient to clean or replace it, which is not practical and not easy to promote and use.

[0005] The technical solution adopted by this utility model is: a door under-door insect-proof and heat-insulating strip, including a door body and a strip body. The end of the strip body away from the door body is provided with a guide groove, and the end of the strip body away from the door body is provided with a sealing component. The end of the sealing component close to the strip body is fixedly installed with a guide block. The outer wall of the strip body is provided with a movable groove, and the inner wall of the strip body is provided with a sound insulation chamber.

[0006] Preferably, the guide block and the guide groove are plugged in, and the cross-section of the guide block is in the shape of an "I".

[0007] With the above technical solution, the staff can insert the guide block into the guide groove, which can realize the quick installation of the sealing component. After long-term use, it is easy to clean or replace, and it is highly practical.

[0008] Preferably, the sealing assembly includes a fixing block, and a sealing strip 1, a sealing strip 2, and a sealing strip 3 are fixedly installed on the end of the fixing block away from the guide block, wherein the lengths of the sealing strip 1, the sealing strip 2, and the sealing strip 3 increase sequentially.

[0009] Through the above technical solution, the design of sealing strip one, sealing strip two, and sealing strip three, with three layers of sealing strips of different lengths, can form a stepped contact with the ground, constructing multiple sealing defenses. When external airflow and mosquitoes attempt to enter through the gap under the door, they need to break through the obstruction of the three layers of sealing strips in sequence. This can effectively block the heat conduction path, achieve efficient heat insulation, and completely prevent mosquitoes from entering the passage, solving the problem of incomplete blocking by traditional single sealing strips.

[0010] Preferably, the sealing strip one, sealing strip two, and sealing strip three are all made of EPDM rubber.

[0011] Through the above technical solutions, sealing strips 1, 2, and 3, made of EPDM rubber, have excellent high and low temperature resistance. They are not prone to aging, hardening, or cracking in extreme high or low temperature environments, and can maintain good elasticity for a long time, ensuring stable sealing performance and thus maintaining the durability of insect and heat insulation effects.

[0012] Preferably, the outer walls of sealing strip one, sealing strip two, and sealing strip three are all coated with a wear-resistant coating.

[0013] Through the above technical solution and the design of the wear-resistant coating, the sealing strip and the ground will frequently rub against each other during the opening and closing of the door. The wear-resistant coating can directly reduce the coefficient of friction between the two, reduce wear and fuzzing on the surface of the sealing strip, avoid sealing failure caused by damage to the sealing strip, extend the replacement cycle, and reduce the cost of use. At the same time, the wear-resistant coating usually has good surface smoothness and anti-fouling properties, and daily dust and stains are not easy to adhere to. Cleaning only requires simple wiping, reducing maintenance difficulty and keeping the sealing strip clean and functional.

[0014] Preferably, the cross-section of the movable groove is V-shaped, and two identical movable grooves are provided, which are symmetrically distributed about the center line of the baffle body.

[0015] Through the above technical solution, the "V" shaped structure with the design of the movable groove has excellent elastic deformation capability. When the door body is closed and squeezed, the movable groove can absorb the pressure through deformation, which drives the baffle body and the sealing component to fit more tightly to the ground, further enhancing the sealing effect. At the same time, it is not easy to cause permanent damage during the deformation process, ensuring the structural stability after long-term use.

[0016] Preferably, the outer wall of the baffle body adopts an "arc-shaped" design, and the baffle body is made of EPDM rubber.

[0017] Through the above technical solution, the barrier body adopts an "arc-shaped" design. The arc-shaped outer wall design eliminates the sharp edges of the traditional right-angle barrier body, effectively avoiding the risk of the elderly, children or pets being bumped and injured while walking. It is especially suitable for families with infants or pets, enhancing the humanized design of the product.

[0018] Compared with the prior art, this utility model provides a door under-door insect-proof and heat-insulating strip, which has the following beneficial effects: 1. This door-mounted insect-proof and heat-insulating strip, through the design of guide blocks and guide grooves, enables quick installation of the sealing components. After long-term use, it is easy to clean or replace, making it highly practical. The "V"-shaped structure of the movable groove design has excellent elastic deformation capability. When the door body is closed and squeezed, the movable groove can absorb the pressure through deformation, causing the strip body and sealing components to fit more tightly against the ground, further enhancing the sealing effect. At the same time, it is not easy to cause permanent damage during the deformation process, ensuring structural stability after long-term use. The strip body adopts an "arc-shaped" design. The arc-shaped outer wall design eliminates the sharp edges of the traditional right-angle strip body, effectively avoiding the risk of the elderly, children or pets being bumped and injured while walking. It is especially suitable for families with infants or pets, enhancing the humanized design of the product. 2. This door under-door insect-proof and heat-insulating strip, through the design of sealing strip one, sealing strip two, and sealing strip three, forms a stepped contact with the ground, constructing multiple lines of defense. When external airflow or insects attempt to enter through the gap under the door, they must successively overcome the obstruction of the three sealing strips. This effectively blocks the heat conduction path, achieving efficient heat insulation, and completely prevents insects from entering, solving the problem of incomplete blocking by traditional single sealing strips. Sealing strips one, two, and three, made of EPDM rubber, have excellent high and low temperature resistance and are not prone to aging or hardening in extreme high or low temperature environments. It can maintain good elasticity for a long time, ensuring stable sealing performance and thus maintaining the durability of insect and heat insulation effects. Through the design of the wear-resistant coating, the sealing strip will frequently rub against the ground during the opening and closing of the door. The wear-resistant coating can directly reduce the coefficient of friction between the two, reduce wear and fuzzing on the surface of the sealing strip, avoid sealing failure caused by damage to the sealing strip, extend the replacement cycle, and reduce the cost of use. At the same time, the wear-resistant coating usually has good surface smoothness and anti-fouling properties. Daily dust and stains are not easy to adhere to. Cleaning only requires simple wiping, reducing maintenance difficulty and keeping the sealing strip clean and functional. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the baffle body of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the installation structure of the sealing assembly of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the baffle body of this utility model. Figure 2 .

[0020] The components include: 1. Door body; 2. Stop bar body; 3. Guide groove; 4. Sealing assembly; 401. Fixing block; 402. Sealing strip one; 403. Sealing strip two; 404. Sealing strip three; 5. Guide block; 6. Movable groove; 7. Sound insulation chamber. Detailed Implementation

[0021] 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.

[0022] Example 1: like Figure 1-5 As shown, the present invention provides a door under-door insect-proof and heat-insulating strip, including a door body 1 and a strip body 2. A guide groove 3 is provided at the end of the strip body 2 away from the door body 1. A sealing component 4 is provided at the end of the strip body 2 away from the door body 1. A guide block 5 is fixedly installed at the end of the sealing component 4 close to the strip body 2. A movable groove 6 is provided on the outer wall of the strip body 2. A sound insulation chamber 7 is provided on the inner wall of the strip body 2.

[0023] Specifically, the guide block 5 and the guide groove 3 are installed by insertion, and the cross-section of the guide block 5 is I-shaped. The advantage is that the operator can quickly install the sealing component 4 by inserting the guide block 5 into the guide groove 3. After long-term use, it is easy to clean or replace, making it highly practical.

[0024] Specifically, the sealing component 4 includes a fixing block 401. A first sealing strip 402, a second sealing strip 403, and a third sealing strip 404 are fixedly installed on the end of the fixing block 401 furthest from the guide block 5. The lengths of the first sealing strip 402, the second sealing strip 403, and the third sealing strip 404 increase sequentially. The advantage is that, through the design of the first sealing strip 402, the second sealing strip 403, and the third sealing strip 404, the three layers of sealing strips of different lengths can form a stepped contact with the ground, constructing multiple sealing defenses. When external airflow or insects attempt to enter through the gap under the door, they must successively overcome the obstruction of the three layers of sealing strips. This effectively blocks the heat conduction path, achieving efficient heat insulation, and completely prevents insects from entering, solving the problem of incomplete blocking by traditional single sealing strips.

[0025] Specifically, sealing strip 402, sealing strip 403, and sealing strip 404 are all made of EPDM rubber. The advantage is that these three EPDM rubber-made sealing strips have excellent high and low temperature resistance. They are not prone to aging, hardening, or cracking in extreme high or low temperature environments, and can maintain good elasticity for a long time, ensuring stable sealing performance and thus maintaining the durability of their insect-proofing and heat-insulating effects.

[0026] Example 2: like Figure 2-5As shown, as an improvement on the previous embodiment, to further improve the service life of sealing strip 402, 403, and 404, specifically, the outer walls of sealing strip 402, 403, and 404 are all coated with a wear-resistant coating. The advantage is that, through the design of the wear-resistant coating, during the opening and closing of the door body 1, the sealing strip and the ground will frequently rub against each other. The wear-resistant coating can directly reduce the coefficient of friction between them, reduce wear and fraying on the surface of the sealing strip, avoid sealing failure due to strip damage, extend the replacement cycle, and reduce usage costs. At the same time, the wear-resistant coating usually has good surface smoothness and anti-fouling properties, making it difficult for daily dust and stains to adhere. Cleaning only requires simple wiping, reducing maintenance difficulty and maintaining the cleanliness and performance of the sealing strip.

[0027] Specifically, the cross-section of the movable groove 6 is V-shaped, and two identical movable grooves 6 are provided, symmetrically distributed about the center line of the baffle body 2. The advantage is that, through the design of the movable groove 6, the V-shaped structure has excellent elastic deformation capability. When the door body 1 is closed and pressure is generated, the movable groove 6 can absorb the pressure through deformation, causing the baffle body 2 and the sealing component 4 to fit more tightly against the ground, further enhancing the sealing effect. At the same time, it is less prone to permanent damage during deformation, ensuring structural stability after long-term use.

[0028] Specifically, the outer wall of the barrier strip body 2 adopts an "arc-shaped" design, and the barrier strip body 2 is made of EPDM rubber. The advantage is that the "arc-shaped" design of the barrier strip body 2 eliminates the sharp edges of the traditional right-angle barrier strip body 2, effectively avoiding the risk of injury to the elderly, children or pets while walking. It is especially suitable for families with infants or pets, enhancing the product's human-centered design.

[0029] Working Principle: During installation, the guide block 5 is inserted into the guide groove 3, enabling quick installation of the sealing component 4. After prolonged use, it is easy to clean or replace, making it highly practical. During use, the three layers of sealing strips (402, 403, and 404) of varying lengths form a stepped contact with the ground, creating multiple layers of sealing defense. When external airflow or insects attempt to enter through the gap under the door, they must overcome the obstruction of the three layers of sealing strips in sequence. This effectively blocks the heat conduction path, achieving efficient heat insulation, and completely prevents insects from entering, solving the problem of incomplete blocking by traditional single sealing strips. The sealing strips (402, 403, and 404) made of EPDM rubber have excellent high and low temperature resistance, and are not prone to aging, hardening, or cracking in extreme high or low temperature environments. They maintain good elasticity for a long time, ensuring stable sealing performance and thus maintaining the durability of the insect-proof and heat-insulating effect. Through the design of the wear-resistant coating, during the opening and closing of the door body 1, the sealing strips and the ground will... Frequent friction can directly reduce the coefficient of friction between the two, reducing wear and fraying on the surface of the sealing strip, preventing sealing failure due to strip damage, extending the replacement cycle, and reducing usage costs. Simultaneously, the wear-resistant coating typically has good surface smoothness and anti-fouling properties, making it difficult for daily dust and stains to adhere. Cleaning only requires simple wiping, reducing maintenance difficulty and keeping the sealing strip clean and functional. The "V"-shaped structure of the movable groove 6 provides excellent elastic deformation capability. When the door body 1 is closed and pressure is generated, the movable groove 6 can absorb the pressure through deformation, causing the baffle body 2 and sealing component 4 to fit more tightly against the ground, further enhancing the sealing effect. At the same time, it is less prone to permanent damage during deformation, ensuring structural stability after long-term use. The baffle body 2, with its "arc-shaped" design, eliminates the sharp edges of traditional right-angle baffle bodies 2, effectively preventing the risk of injury to the elderly, children, or pets while walking. It is especially suitable for families with infants or pets, enhancing the product's human-centered design.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A door under-door insect-proof and heat-insulating strip, comprising a door body (1) and a strip body (2), characterized in that: The baffle body (2) has a guide groove (3) at one end away from the door body (1), a sealing component (4) at one end away from the door body (1), a guide block (5) is fixedly installed at one end of the sealing component (4) near the baffle body (2), an movable groove (6) is provided on the outer wall of the baffle body (2), and a sound insulation chamber (7) is provided on the inner wall of the baffle body (2).

2. The door under-door insect-proof and heat-insulating strip according to claim 1, characterized in that: The guide block (5) and the guide groove (3) are installed by plugging in, and the cross section of the guide block (5) is in the shape of an "I".

3. The door under-door insect-proof and heat-insulating strip according to claim 1, characterized in that: The sealing assembly (4) includes a fixing block (401), and a sealing strip one (402), a sealing strip two (403) and a sealing strip three (404) are fixedly installed on the end of the fixing block (401) away from the guide block (5). The lengths of the sealing strip one (402), the sealing strip two (403) and the sealing strip three (404) increase sequentially.

4. The door under-door insect-proof and heat-insulating strip according to claim 3, characterized in that: The sealing strips one (402), two (403) and three (404) are all made of EPDM rubber.

5. A door under-door insect-proof and heat-insulating strip according to claim 3, characterized in that: The outer walls of the sealing strips 1 (402), 2 (403) and 3 (404) are all coated with a wear-resistant coating.

6. The door under-door insect-proof and heat-insulating strip according to claim 1, characterized in that: The cross-section of the movable groove (6) is V-shaped. Two identical movable grooves (6) are provided, and the two movable grooves (6) are symmetrically distributed about the center line of the baffle body (2).

7. A door under-door insect-proof and heat-insulating strip according to claim 1, characterized in that: The outer wall of the baffle body (2) adopts an "arc-shaped" design, and the baffle body (2) is made of EPDM rubber.

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