Anti-loosening door seal

Abstract

The utility model discloses an anti-loosening door seal which comprises a connecting strip, a door seal body and a locking piece. The end of the connecting strip is of an arc-shaped structure, and a square hole used for contraction is formed in the middle of the connecting strip. The limiting baffles are obliquely arranged on the two sides of the connecting strip, a sealing cavity is formed between the connecting strip and the limiting baffles, the elasticity of the limiting baffles is increased through gas in the sealing cavity, and connection looseness is prevented; the door seal has the advantages that the end of the connecting strip is of an arc-shaped structure, so that the door seal can well adapt to the shape of a door frame or a clamping groove, and close fit between the door seal and the door frame is guaranteed; due to the arrangement of the square hole and the arc-shaped strip in the square hole, the connecting strip can be rapidly clamped into the corresponding position through extrusion deformation during installation and can automatically reset after external force is relieved, and the adaptability and stability of the door seal are enhanced; the limiting baffles are symmetrically and fixedly connected to the two sides of the connecting strip to form a structure similar to a key head, and the binding force of the door seal and a door frame clamping groove is increased.

Description

Technical Field

[0001] This utility model relates to the field of door sealing technology, specifically to a door seal that prevents loosening. Background Technology

[0002] Freezers contain a large amount of cold air, and door seals effectively prevent this cold air from leaking through the door gaps, ensuring a stable internal temperature and preventing the freezer from failing to cool or cooling insufficiently. Good sealing reduces cold air loss, thus lowering energy consumption and achieving energy savings. During installation, freezer door seals are typically snapped into grooves on the freezer door. Existing door seals often use spring clips on both sides for locking and fixing, but this structure is flimsy and lacks sufficient elasticity, making them prone to loosening or detachment with repeated opening and closing of the door. Utility Model Content

[0003] The purpose of this invention is to provide a door seal that prevents loosening, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a door seal to prevent loosening, comprising:

[0005] The connecting strip has an arc-shaped end and a square hole in the middle for contraction.

[0006] A limiting baffle is inclinedly placed on both sides of the connecting strip. A sealing cavity is provided between the connecting strip and the limiting baffle. The gas inside the sealing cavity increases the elasticity of the limiting baffle and prevents the connection from loosening.

[0007] A sealing part is placed on top of the connecting strip. The sealing part includes a mounting and fitting part fixed to the top of the connecting strip, and a compression sealing part is provided on one side of the mounting and fitting part.

[0008] Preferably, the inside of the square hole is provided with two arc-shaped strips with an arc structure to facilitate the square hole to reset.

[0009] Preferably, the connecting strip is provided with limiting triangular blocks on both sides.

[0010] Preferably, the top of the mounting and fitting part is provided with an arc-shaped elastic buffer part one and a compression sealing part, and the end of the mounting and fitting part opposite to the elastic buffer part one is provided with an elastic buffer part two. Buffer spaces are provided between the elastic buffer part one and the elastic buffer part three, as well as between the elastic buffer part two and the elastic buffer part three.

[0011] Preferably, the compression sealing part is located at the top of the elastic buffer part, and the compression sealing part is a hollow rounded rectangular structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the end of the connecting strip adopts an arc-shaped structure, which can adapt well to the shape of the door frame or the slot, ensuring a tight fit between the door seal and the door frame; the square hole and the arc-shaped strip inside allow the connecting strip to quickly snap into the corresponding position through compression deformation during installation, and can automatically reset after the external force is released, enhancing the adaptability and stability of the door seal; the limiting baffle is symmetrically fixed on both sides of the connecting strip, forming a key-like structure, which not only increases the bonding force between the door seal and the door frame slot, but also effectively prevents the door seal from loosening or displacing under external force; the setting of the sealing cavity, especially its right-angled triangular structure, and the use of the compression characteristics of the gas in the sealing cavity to enhance the elasticity of the limiting baffle, further ensures the tight fit between the door seal and the door frame slot, avoiding loosening. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure during installation of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the arc-shaped strip of this utility model.

[0016] In the diagram: 1. Connecting strip; 2. Square hole; 3. Arc strip; 4. Limiting baffle; 5. Elastic buffer part one; 6. Compression sealing part; 7. Elastic buffer part two; 8. Elastic buffer part three; 9. Sealing cavity; 10. Mounting and fitting part; 11. Limiting triangular block. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1 , 2As shown in Figure 3, this utility model provides a technical solution: an anti-loosening door seal, comprising: a connecting strip 1, the ends of which are arc-shaped and a square hole 2 for retraction is provided in the middle; a limiting baffle 4 is inclinedly placed on both sides of the connecting strip 1, the limiting baffle 4 is symmetrically fixed to both sides of the connecting strip 1, the connecting strip 1 and the limiting baffle 4 form a key-like structure, and a sealing cavity 9 is provided between the connecting strip 1 and the limiting baffle 4, the sealing cavity 9 is a right-angled triangular structure, and the hypotenuse of the sealing cavity 9 is the limiting baffle 4. The right-angled side of the sealing cavity 9 is the connecting strip 1 and the side perpendicular to the connecting strip 1. The gas inside the sealing cavity 9 increases the elasticity of the limiting baffle 4, so that the sealing cavity 9 and the side perpendicular to the connecting strip 1 fit into the slot of the door frame to prevent the connection from loosening. The sealing part is placed on the top of the connecting strip 1. The sealing part includes the mounting and fitting part 10 fixed to the top of the connecting strip 1. One side of the mounting and fitting part 10 is provided with a compression sealing part 6. The door is sealed by compression deformation. The door seal is made of soft PVC material.

[0019] It should be noted that the end of the connecting strip 1 of this utility model adopts an arc-shaped structure, which can effectively adapt to the shape of the door frame or the slot on the door frame, thereby providing a better fit; a square hole 2 for shrinkage is provided in the middle of the connecting strip 1, so that when it is inserted into the slot for installation, it can be squeezed and deformed to quickly snap into the corresponding position when it is installed in place, and can also adjust the contact pressure between the door seal and the door frame through a certain shrinkage mechanism, thereby achieving a better seal; the limiting baffle 4 is symmetrically fixed on both sides of the connecting strip 1, forming a key-like structure; it not only ensures the stability between the connecting strip 1 and the limiting baffle 4, but also ensures that it will not easily separate under the action of external force, playing a role in preventing loosening; the combination of the bevel of the limiting baffle 4 and the sealing cavity 9, the bevel and the connecting strip 1 forming the sealing cavity 9, enhances the sealing performance. The right-angled edge of the sealing cavity 9, in conjunction with the inner wall of the door frame slot, effectively prevents the door seal from loosening or shifting. The inclined edge of the sealing cavity 9 contacts the limiting baffle 4, with one side of the right-angled edge being the connecting strip 1 and the other side perpendicular to the connecting strip 1. The compression characteristics of the gas inside the sealing cavity 9 are effectively utilized, enhancing the elasticity of the limiting baffle 4. By increasing the gas inside the sealing cavity 9, the sealing cavity 9 applies elasticity to the limiting baffle 4, ensuring a tight fit between the door frame slot and the sealing cavity 9 and the perpendicular side of the connecting strip 1, thereby reinforcing the connection between the door seal and the door frame slot and preventing loosening. The top of the connecting strip 1 is provided with an installation fitting part 10, which is fixed to the top of the connecting strip and contacts the door frame. The compression sealing part 6, through its deformation capability, can generate additional sealing force when the door is closed, ensuring a seamless connection between the door and the door frame.

[0020] Please see Figure 1 , 2 As shown in Figures 1 and 3, two arc-shaped strips 3 with arc-shaped structures are symmetrically arranged inside the square hole 2 to facilitate the repositioning of the square hole 2.

[0021] It should be noted that the square hole 2 of this utility model is located in the middle of the connecting strip 1, serving as a retractable and adjustable component to adapt to different door frame sizes. Through the compression deformation of the square hole 2, the connecting strip 1 can flexibly adapt to the differences in shape and size of the door frame, thereby ensuring a tight installation of the door seal. The arc-shaped strip 3 consists of two symmetrical arc-shaped structures set inside the square hole 2. The elasticity and shape design of the arc-shaped strip 3 allow the square hole 2 to automatically return to its original state after being affected by external force. The two sides of the arc-shaped strip 3 are relatively symmetrical, ensuring uniform force during reset. When the square hole 2 is compressed or deformed, the arc-shaped strip 3 generates elastic force, pushing the square hole 2 back to its initial position. The shape and size of the arc-shaped strips are designed to maintain the original sealing and stability of the door seal during long-term use, preventing deformation or loosening due to frequent opening and closing. Because the arc-shaped strips 3 are symmetrically arranged, they can evenly distribute pressure, preventing excessive or uneven pressure on one side when the square hole 2 is reset, thus avoiding structural damage due to stress concentration. When the door seal is subjected to external pressure (such as door opening and closing or wind), the bending deformation characteristics of the arc-shaped strips 3 can buffer these external forces, reducing their direct impact on the connecting strip 1 and the square hole 2. Through its elastic properties, the arc-shaped strips 3 allow the square hole 2 to quickly return to its original shape, preventing the door seal from loosening due to external forces.

[0022] Please see Figure 2 , 3 As shown, limiting triangular blocks 11 are provided on both sides of the connecting strip 1.

[0023] It should be noted that when the connecting strip 1 is fully engaged in the installation position, under the reset action of the arc strip 3 and the square hole 2, the limiting triangular block 11 is placed on the inner wall of the slot, which fits against the inner wall of the slot, increasing the stability of the connection.

[0024] Please see Figure 1 , 2 As shown in Figure 3, the top of the mounting and fitting part 10 is provided with an arc-shaped elastic buffer part 5 and a compression sealing part 6. The end of the mounting and fitting part 10 away from the elastic buffer part 5 is provided with an elastic buffer part 2 7. Buffer spaces are provided between the elastic buffer part 1 5 and the elastic buffer part 3 8, as well as between the elastic buffer part 2 7 and the elastic buffer part 3 8. The compression sealing part 6 is located on the top of the elastic buffer part 1 5 and is a hollow rounded rectangular structure.

[0025] It should be noted that the mounting and fitting part 10 of this utility model connects and supports all other components. The function of the elastic buffer part 15 is to absorb external pressure or impact. It has an arc-shaped elastic component that can deform under force, thereby mitigating the impact of external forces on the system. The elastic buffer part 15 is located at the top of the mounting and fitting part 10 and plays a role in buffering and shock absorption, reducing the negative impact of external vibration or impact on the sealing system. It forms multiple buffer spaces with its elastic buffer part 2 7 and elastic buffer part 3 8, further enhancing the overall buffering effect of the system. The compression sealing part 6 is located at the top of the elastic buffer part 15 and forms a tight sealing contact with components such as door frames or connecting parts, preventing external substances (such as air, dust, water, etc.) from entering or escaping. The compression sealing part 6 has a hollow rounded rectangular structure, which allows it to deform evenly when compressed, increasing the contact area and enhancing the sealing effect. The elastic buffer part 2 7 is located at the end of the mounting and fitting part 10 away from the elastic buffer part 15 and is used to provide additional buffering. It is also elastic and can deform under force, thereby mitigating impact or pressure.

[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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] Furthermore, the terms "first," "second," "third," and "fourth" 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. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] 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 seal designed to prevent loosening, characterized in that: include: Connecting strip (1), the ends of the connecting strip (1) are arc-shaped and the middle is provided with a square hole (2) for shrinkage; Limiting baffle (4) is inclinedly placed on both sides of the connecting strip (1). A sealing cavity (9) is provided between the connecting strip (1) and the limiting baffle (4). The gas inside the sealing cavity (9) increases the elasticity of the limiting baffle (4) to prevent the connection from loosening. A sealing part is placed on the top of the connecting strip (1). The sealing part includes a mounting and fitting part (10) fixed to the top of the connecting strip (1). A compression sealing part (6) is provided on one side of the mounting and fitting part (10).

2. The anti-loosening door seal according to claim 1, characterized in that: The square hole (2) has two symmetrical arc-shaped strips (3) inside, which are used to make the square hole (2) reset.

3. The anti-loosening door seal according to claim 1, characterized in that: The connecting strip (1) is provided with limiting triangular blocks (11) on both sides.

4. The anti-loosening door seal according to claim 1, characterized in that: The top of the mounting and fitting part (10) is provided with an arc-shaped elastic buffer part one (5) and a compression sealing part (6). The end of the mounting and fitting part (10) away from the elastic buffer part one (5) is provided with an elastic buffer part two (7). Buffer spaces are provided between the elastic buffer part one (5) and the elastic buffer part three (8) and between the elastic buffer part two (7) and the elastic buffer part three (8).

5. The anti-loosening door seal according to claim 4, characterized in that: The compression sealing part (6) is located on top of the elastic buffer part (5), and the compression sealing part (6) is a hollow rounded rectangular structure.

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