Door bottom sealing device

Abstract

The utility model belongs to the technical field of door bottom sealing, and particularly relates to a door bottom sealing device which comprises a first sealing mechanism installed at the bottom of a door body and used for movably abutting against the ground. The second sealing mechanism is installed at the bottom of the door body, located beside the first sealing mechanism and used for conducting automatic lifting sealing along with opening and closing of the door body. The first sealing mechanism comprises a mounting strip connected with the bottom of the door main body; the bristles are arranged on the mounting strip and used for movably abutting against the ground, and sealing between the bottom of the door body and the ground is achieved; the first sealing mechanism and the second sealing mechanism are designed at the bottom of the door body to jointly seal the door bottom, bristles of the first sealing mechanism can make continuous contact with the ground, no matter whether the ground is flat or not, a gap between the door bottom and the ground can be effectively sealed, and the sealing performance between the door body and the ground is guaranteed; light or air leakage caused by a gap at the bottom of the door is avoided, and the environmental cleanliness in the clean room is ensured.

Description

Technical Field

[0001] This technical solution relates to the field of door bottom sealing technology, and specifically refers to a door bottom sealing device. Background Technology

[0002] Existing houses generally have a gap between the bottom of the door and the ground (or threshold) to facilitate the opening of the door. However, this also allows wind, sand, dust, mosquitoes, insects, smoke, gas, noise, light, and rainwater to enter the room through the gap, polluting the living environment and affecting people's normal life and work.

[0003] Therefore, existing designs improve the sealing performance of the bottom of the door by incorporating a sealing device. For example, Chinese patent CN202020635676.9 discloses an automatic lifting door bottom sealing system. By connecting the rotating door panel to the door frame, when the rotating door panel is turned to close the door, the slide bar contacts the door frame and is squeezed back into the inner aluminum profile, thereby compressing the return spring and causing the connecting strip to be in a relaxed state. At this time, under the elastic force of the compression spring, the top cap moves downward, thereby causing the sealing strip of the inner aluminum profile to move downward and contact the ground, thus achieving the purpose of sealing the bottom of the door.

[0004] However, the existing door bottom sealing design still has some shortcomings. The sealing strip moves downward as a whole. Due to the unevenness of the ground, one end of the sealing strip seals with the higher end of the ground, while there is a gap between the sealing strip and the lower end of the ground. This causes the sealing strip to not fully adhere to the ground, resulting in gaps and poor sealing performance. Summary of the Invention

[0005] The purpose of this technical solution is to provide a door bottom sealing device that uses a first sealing mechanism and a second sealing mechanism to jointly seal the bottom of the door. The bristles of the first sealing mechanism are always in contact with the ground, ensuring the sealing of the bottom of the door and improving the problem of poor sealing effect of existing lifting sealing devices.

[0006] The purpose of this technical solution is achieved as follows:

[0007] A door bottom sealing device for installation at the bottom of a door body, comprising:

[0008] The first sealing mechanism is installed at the bottom of the door body for moving contact with the ground;

[0009] The second sealing mechanism is installed at the bottom of the door body and is located next to the first sealing mechanism. It is used to automatically lift and seal as the door body is opened and closed.

[0010] The first sealing mechanism includes:

[0011] The mounting strip connects to the bottom of the door body;

[0012] The bristles, which are set on the mounting strip, are used to move and abut against the ground to achieve a seal between the bottom of the door body and the ground.

[0013] Preferably, the bristles make contact with the ground through elastic deformation.

[0014] Preferably, the bottom of the door body is provided with a mounting groove, and the mounting strip is movably connected in the mounting groove.

[0015] Preferably, the mounting strip has an anti-detachment part one and a connecting part, the lower end of the connecting part extends out of the groove of the mounting groove one and connects to the bristles, and the inner wall of the groove of the mounting groove one has an anti-detachment part two;

[0016] When the first anti-detachment part is inserted into the first mounting slot, the second anti-detachment part moves to abut against the lower end of the first anti-detachment part, thereby preventing the first anti-detachment part from detaching from the first mounting slot.

[0017] Preferably, when the brush bristles come into contact with the ground, the brush bristles undergo elastic deformation, causing the upper end of the mounting strip to abut against the bottom of the mounting groove.

[0018] Preferably, the mounting strip is fixedly installed at the bottom of the door body.

[0019] Preferably, the bristles are made of polypropylene, nylon, polyurethane, or silicone.

[0020] Preferably, the lower end of the bristles is flat and used to contact the ground.

[0021] Preferably, the length of the bristles is not less than 10 mm and not more than 30 mm.

[0022] Preferably, a connecting frame is provided at the bottom of the door body, and the lower end of the connecting frame is provided with a first mounting groove and a second mounting groove. The first sealing mechanism is installed in the first mounting groove, and the second sealing mechanism is installed in the second mounting groove.

[0023] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0024] This technical solution uses a first sealing mechanism and a second sealing mechanism at the bottom of the door body to seal the bottom of the door together. The bristles of the first sealing mechanism can continuously contact the ground, and can effectively seal the gap between the bottom of the door and the ground regardless of whether the ground is flat or not, thus ensuring the airtightness between the door body and the ground. This avoids light or air leakage caused by the gap at the bottom of the door, and ensures the cleanliness of the clean room environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this technical solution.

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0027] Figure 3 for Figure 2 Enlarged view of point B in the middle.

[0028] Reference numerals: 1. Door body; 11. Mounting groove one; 12. Anti-detachment part two; 13. Connecting frame; 14. Mounting groove two; 2. First sealing mechanism; 21. Mounting strip; 22. Brush bristles; 23. Anti-detachment part one; 24. Connecting part; 3. Second sealing mechanism; 4. Ground. Detailed Implementation

[0029] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings. See also Figures 1-3 .

[0030] Example 1:

[0031] A door bottom sealing device for installation at the bottom of a door body 1, comprising:

[0032] The first sealing mechanism 2 is installed at the bottom of the door body 1 and is used to move and abut against the ground 4.

[0033] The second sealing mechanism 3 is installed at the bottom of the door body 1 and is located next to the first sealing mechanism 2. It is used to automatically lift and seal as the door body 1 is opened and closed.

[0034] The first sealing mechanism 2 includes:

[0035] Mounting strip 21 is connected to the bottom of door body 1;

[0036] The bristles 22 are mounted on the mounting strip 21 and are used to move and abut against the ground 4 to achieve a seal between the bottom of the door body 1 and the ground.

[0037] During the opening or closing of the door body 1 and after the door body 1 is closed, the bristles 22 of the first sealing mechanism 2 always remain in contact with the ground 4, thereby ensuring that the door body 1 and the ground 4 are always sealed, thus improving the sealing performance; while the second sealing mechanism 3 will rise when the door is rotated to open and descend to abut against the ground 4 to seal when the door is rotated to close.

[0038] When the bristles 22 come into contact with the ground 4, the bristles 22 bend through elastic deformation, so that when the door body 1 is rotated to open or close, the lower end of the bristles 22 always comes into contact with the ground, thus avoiding any gaps between the door body 1 and the ground 4; and regardless of whether the ground is flat or not, the bristles 22 can come into contact with the ground surface, thereby improving the sealing effect of the bottom of the door after the door body 1 is closed.

[0039] The lower end of the bristles 22 is flat, which is used to abut against the ground 4 to ensure the sealing effect after the door is closed.

[0040] The bottom of the door body 1 has an installation groove 11 along its length, and the side wall of the door body 1 is hinged to the door frame.

[0041] The bottom of the door body 1 is provided with a mounting groove 11, and the mounting strip 21 is movably connected in the mounting groove 11. The side wall of the end of the mounting groove 11 can be connected to the outside, so that the mounting strip 21 can be slidably inserted into the mounting groove 11. The door body 1 is installed at the connection between the mounting groove 11 and the outside by an anti-detachment plate, so that the mounting strip 21 is movably connected in the mounting groove 11.

[0042] The mounting strip 21 has an anti-detachment part 23 and a connecting part 24. The anti-detachment part 23 is a protrusion, a dot, or a strip. The lower end of the connecting part 24 extends out of the groove of the mounting groove 11 and is connected to the bristles 22. The inner wall of the groove of the mounting groove 11 has an anti-detachment part 22. The anti-detachment part 22 is a protrusion, a dot, or a strip.

[0043] When the anti-detachment part 23 is inserted into the mounting groove 11, the anti-detachment part 22 moves against the lower end of the anti-detachment part 23 to prevent the anti-detachment part 23 from disengaging from the mounting groove 11, thereby enabling the mounting strip 21 to be movably connected in the mounting groove 11.

[0044] The bristles 22 are made of polypropylene, nylon, polyurethane, or silicone.

[0045] The length of the bristles 22 is not less than 10 mm and not more than 30 mm, that is, the length is between 10 mm and 30 mm, which ensures the sealing between the bottom of the door body 1 and the ground.

[0046] A connecting bracket 13 is provided at the bottom of the door body 1. The upper end of the connecting bracket 13 is inserted into the door body 1 and the connecting bracket 13 is connected and fixed to the door body 1 by screws, glue or interference fit. The lower end of the connecting bracket 13 is provided with a first mounting groove 11 and a second mounting groove 14. A first sealing mechanism 2 is installed in the first mounting groove 11 and a second sealing mechanism 3 is installed in the second mounting groove 14. The first sealing mechanism 2 and the second sealing mechanism 3 are both installed on the connecting bracket 13, and then the connecting bracket 13 is installed at the bottom of the door body 1, which improves the convenience of installation and facilitates later maintenance and replacement.

[0047] The second sealing mechanism 3 is existing technology, and its specific structure is described in Chinese patent CN202020635676.9, so it will not be repeated here.

[0048] Example 2:

[0049] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0050] The mounting strip 21 has a structure that is wider at the top and narrower at the bottom. The inner wall of the mounting groove 11 is inclined, so that the bottom diameter of the mounting groove 11 is larger than the opening diameter. That is, the mounting groove 11 has a narrow opening structure. The mounting strip 21 and the mounting groove 11 are structurally compatible. The mounting strip 21 is inserted into the mounting groove 11, so that the mounting strip 21 is movably connected in the mounting groove 11.

[0051] Example 3:

[0052] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0053] When the bristles 22 come into contact with the ground 4, they undergo elastic deformation, providing support to the mounting strip 21. This ensures that the upper end of the mounting strip 21 abuts against the bottom of the mounting groove 11, guaranteeing its secure connection within the groove and preventing it from detaching. When the door body 1 rotates, the inner wall of the mounting groove 11 moves to abut against the side wall of the mounting strip 21, ensuring its stability within the groove. 21 moves together with the door body 1; when adopting the design scheme of this embodiment, the structure of the second anti-detachment part 12 and the first anti-detachment part 23 in the first embodiment can be retained or removed. When the structure of the second anti-detachment part 12 and the first anti-detachment part 23 is removed, the side wall of the first mounting groove 11 is a vertical structure, the cross section of the first mounting groove 11 is a conventional square groove, the upper end of the mounting strip 21 abuts against the bottom of the first mounting groove 11, and the side wall of the first mounting groove 11 abuts against the side wall of the mounting strip 21.

[0054] Example 4:

[0055] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0056] The mounting strip 21 is fixedly installed at the bottom of the door body 1, specifically by adhesive, integral injection molding, or screw connection to the bottom of the door body 1.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

[0058] It should be noted that the structures, proportions, and sizes depicted in the accompanying drawings are solely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation of this technical solution and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this technical solution, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms used in this specification, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity and not intended to limit the scope of implementation of this technical solution. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the technical solution's implementation.

[0059] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0060] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

Claims

1. A door bottom sealing device for installation at the bottom of a door body (1), characterized in that, include: The first sealing mechanism (2) is installed at the bottom of the door body (1) and is used to move against the ground (4); The second sealing mechanism (3) is installed at the bottom of the door body (1) and is located next to the first sealing mechanism (2), and is used to automatically lift and seal as the door body (1) opens and closes. The first sealing mechanism (2) includes: Mounting strip (21), which is connected to the bottom of the door body (1); The bristles (22), which are set on the mounting strip (21), are used to move against the ground (4) to achieve a seal between the bottom of the door body (1) and the ground (4).

2. The door bottom sealing device according to claim 1, characterized in that: The bristles (22) come into contact with the ground (4) through elastic deformation.

3. A door bottom sealing device according to claim 1 or 2, characterized in that: The bottom of the door body (1) is provided with an installation groove (11), and the installation strip (21) is movably connected in the installation groove (11).

4. A door bottom sealing device according to claim 3, characterized in that: The mounting strip (21) has an anti-detachment part one (23) and a connecting part (24). The lower end of the connecting part (24) extends out of the groove of the mounting groove one (11) and connects to the bristles (22). The inner wall of the groove of the mounting groove one (11) has an anti-detachment part two (12). When the first anti-detachment part (23) is inserted into the first mounting groove (11), the second anti-detachment part (12) moves to abut against the lower end of the first anti-detachment part (23) to restrict the first anti-detachment part (23) from detaching from the first mounting groove (11).

5. A door bottom sealing device according to claim 3, characterized in that: When the bristles (22) come into contact with the ground (4), the bristles (22) undergo elastic deformation, causing the upper end of the mounting strip (21) to come into contact with the bottom of the mounting groove (11).

6. A door bottom sealing device according to claim 1 or 2, characterized in that: The mounting strip (21) is fixedly installed at the bottom of the door body (1).

7. A door bottom sealing device according to claim 1, characterized in that: The bristles (22) are made of polypropylene, nylon, polyurethane or silicone.

8. A door bottom sealing device according to claim 1 or 2, characterized in that: The lower end of the bristles (22) is flat and is used to contact the ground (4).

9. A door bottom sealing device according to claim 1, characterized in that: The length of the bristles (22) is not less than 10 mm and not more than 30 mm.

10. A door bottom sealing device according to claim 1, characterized in that: A connecting frame (13) is provided at the bottom of the door body (1). The lower end of the connecting frame (13) is provided with a first mounting groove (11) and a second mounting groove (14). The first sealing mechanism (2) is installed in the first mounting groove (11), and the second sealing mechanism (3) is installed in the second mounting groove (14).

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