Automatic door bottom sealing device

Abstract

The utility model discloses a door bottom automatic sealing device which comprises an aluminum alloy outer frame, an aluminum alloy inner frame is connected in the aluminum alloy outer frame in a sliding mode, a sliding groove is formed in the aluminum alloy outer frame, a first plastic part and a second plastic part are connected in the sliding groove in a sliding mode, and a sealing assembly is arranged in the aluminum alloy outer frame. When the door is opened, the ejector rod is separated from the door frame, the outer hexagonal threaded rod is not pressed, the first plastic part and the second plastic part are driven by the ejector rod to slide in the sliding groove, the first spring piece and the second spring piece are bent under stress, the aluminum alloy inner frame and the sealing strip are pushed to move downwards to be closed with the ground, and noise is reduced. And the appearance structure of the door is not affected in the door opening and closing process, and the door has the advantages of being easy to install, simple in structure, reliable in performance, low in manufacturing cost, long in service life and the like.

Description

Technical Field

[0001] This utility model belongs to the field of door sealing technology, specifically relating to an automatic door bottom sealing device. Background Technology

[0002] Sliding doors are characterized by opening and closing through horizontal pushing and pulling, rather than the traditional inward or outward rotation. This design makes space utilization more efficient and improves the utilization rate of interior space. Sliding doors consist of an upper track and a lower track. The upper track is usually installed at the top of the door frame and is used to suspend and guide the movement of the door. The lower track is installed on the ground and plays a supporting and auxiliary guiding role, thus enabling horizontal pushing and pulling. However, when the sliding door is closed, if the bottom of the door is not sealed well, sound can easily enter the room through the gaps at the bottom of the door. This is especially true in rooms near streets, elevators, or noisy environments, where loud noise can enter the room without obstruction, resulting in a large indoor noise level. Utility Model Content

[0003] The purpose of this invention is to provide an automatic door bottom sealing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic door bottom sealing device, comprising:

[0005] An aluminum alloy outer frame is provided, and an aluminum alloy inner frame is slidably connected within the outer frame. A sliding groove is provided inside the outer frame and at the top of the inner frame. A first plastic component and a second plastic component are slidably connected within the sliding groove. A sealing assembly for sealing the bottom of the door is provided inside the outer frame. The top rod of the sealing assembly pushes the slidingly connected side rod in the sliding groove to slide, so that the side rod pushes the first and second plastic components to slide, while simultaneously moving the inner frame outward from the outer frame. The sealing strip connected to the bottom of the inner frame then seals the bottom of the door.

[0006] Preferably, the sealing assembly includes a first spring sheet and a second spring sheet. The two ends of the side rod are respectively connected to the first plastic part and the second plastic part. A third plastic part is fixedly connected inside the aluminum alloy outer frame and located inside the side rod. One end of the first spring sheet is screwed to the first plastic part by a screw, and the other end moves through an opening on the surface of the aluminum alloy inner frame and then passes through another set of openings to be fixed to the third plastic part by a screw.

[0007] Preferably, one end of the second spring sheet is fixed to the second plastic part by screws, and the other end moves through the opening on the surface of the aluminum alloy inner frame and then passes through another set of openings to be fixed to the fourth plastic part fixed inside the aluminum alloy outer frame by screws.

[0008] Preferably, a third spring sheet is screwed to the surface of the third plastic part, and one end of the third spring sheet moves through the opening on the surface of the aluminum alloy inner frame and is screwed to the fixing block. The fixing block is connected to the aluminum alloy inner frame.

[0009] Preferably, the aluminum alloy inner frame is connected to a first plastic block at the top of the first spring sheet, and the aluminum alloy inner frame is connected to a second plastic block at the top of the second spring sheet.

[0010] Preferably, one end of the first plastic part is connected to an external hexagonal threaded rod and the push rod is threaded onto the surface of the external hexagonal threaded rod. The other end of the push rod movably passes through the aluminum alloy outer frame, and a first plug is provided at the point where the push rod passes through the aluminum alloy outer frame.

[0011] Preferably, plastic plugs are inserted at both ends of the aluminum alloy inner frame, and the surfaces of the plastic plugs are beveled.

[0012] Preferably, a second plug is inserted at the other end of the aluminum alloy outer frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When the door is closed by pushing and pulling, the top rod at the bottom of the sliding door contacts the door frame and is pressed, causing the external hexagonal threaded rod to move inward. This pushes the side rod, causing the first and second plastic parts to slide in the groove, which causes the first and second spring sheets to bend under force. This pushes the aluminum alloy inner frame and sealing strip downward to seal with the ground, reducing the entry of noise. Thus, the good bottom sealing of the door can effectively reduce the entry of external noise into the room. When the door is opened, the top rod disengages from the door frame, so the external hexagonal threaded rod is not pressed. This allows the first and second spring sheets to reset using their own elasticity, and causes the aluminum alloy inner frame and sealing strip to move upward into the aluminum alloy outer frame and disengage from the ground. Moreover, the opening and closing process does not affect the appearance and structure of the door. It features easy installation, simple structure, reliable performance, low manufacturing cost, and long service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the sealing strip of this utility model when sealing the ground;

[0018] Figure 5 This is a side view of the present invention;

[0019] Figure 6This is a side view of the sealing strip of this utility model when it is sealing the ground.

[0020] In the diagram: 1. Aluminum alloy outer frame; 2. Aluminum alloy inner frame; 3. First plastic part; 4. Second plastic part; 5. Top rod; 6. Side rod; 7. Sealing strip; 8. First spring plate; 9. Second spring plate; 10. Third plastic part; 11. Third spring plate; 12. Fixing block; 13. First plastic block; 14. Second plastic block; 15. Fourth plastic part; 16. External hexagonal threaded rod; 17. First plug; 18. Plastic plug; 19. Bevel; 20. Second plug. 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] This utility model provides, for example Figure 1-6 An automatic door bottom sealing device shown includes:

[0023] An aluminum alloy outer frame 1 is provided, and an aluminum alloy inner frame 2 is slidably connected inside the aluminum alloy outer frame 1. A sliding groove is provided inside the aluminum alloy outer frame 1 and at the top of the aluminum alloy inner frame 2. A first plastic part 3 and a second plastic part 4 are slidably connected in the sliding groove. A sealing assembly for sealing the bottom of the door is provided inside the aluminum alloy outer frame 1. The top rod 5 of the sealing assembly pushes the side rod 6 slidably connected in the sliding groove to slide, so that the side rod 6 pushes the first plastic part 3 and the second plastic part 4 to slide, thereby driving the aluminum alloy inner frame 2 to move outward from the aluminum alloy outer frame 1 and sealing the bottom of the door with a sealing strip 7 connected to the bottom of the aluminum alloy inner frame 2.

[0024] The sealing assembly includes a first spring plate 8 and a second spring plate 9. The two ends of the side rod 6 are respectively connected to the first plastic part 3 and the second plastic part 4. A third plastic part 10 is fixedly connected inside the aluminum alloy outer frame 1 and inside the side rod 6. One end of the first spring plate 8 is screwed to the first plastic part 3, and the other end moves through the opening on the surface of the aluminum alloy inner frame 2 and then passes through another set of openings to be fixed to the third plastic part 10 by screws.

[0025] One end of the second spring sheet 9 is fixed to the second plastic part 4 by screws, and the other end moves through the opening on the surface of the aluminum alloy inner frame 2 and then passes through another set of openings to be fixed to the fourth plastic part 15 fixed inside the aluminum alloy outer frame 1 by screws.

[0026] The surface of the third plastic part 10 is fixed with a third spring plate 11 by screws, and one end of the third spring plate 11 moves through the opening on the surface of the aluminum alloy inner frame 2 and is fixed with the fixing block 12 by screws. The fixing block 12 is connected to the aluminum alloy inner frame 2.

[0027] The aluminum alloy inner frame 2 is connected to a first plastic block 13 at the top of the first spring plate 8, and the aluminum alloy inner frame 2 is connected to a second plastic block 14 at the top of the second spring plate 9. The first plastic block 13 and the second plastic block 14 can press down the first spring plate 8 and the second spring plate 9 when the aluminum alloy inner frame 2 moves, so that the curvature of the first spring plate 8 and the second spring plate 9 under force is more uniform.

[0028] One end of the first plastic part 3 is connected to an external hexagonal threaded rod 16, and the push rod 5 is threaded onto the surface of the external hexagonal threaded rod 16. The other end of the push rod 5 movably passes through the aluminum alloy outer frame 1, and a first plug 17 is provided at the penetration point between the push rod 5 and the aluminum alloy outer frame 1. Plastic plugs 18 are inserted into both ends of the aluminum alloy inner frame 2, and the surface of the plastic plugs 18 is provided with a bevel 19. A second plug 20 is inserted into the other end of the aluminum alloy outer frame 1. By blocking the two ends of the aluminum alloy outer frame 1 and the aluminum alloy inner frame 2 with the first plug 17, the second plug 20, and the plastic plug 18 respectively, dust or foreign objects can be prevented from entering the inner holes of the aluminum alloy outer frame 1 and the aluminum alloy inner frame 2, and the appearance of the aluminum alloy outer frame 1 and the aluminum alloy inner frame 2 can be made more beautiful.

[0029] The automatic sealing device at the bottom of the door works as follows: When the door is pushed or pulled to close, the top rod 5 at the bottom of the sliding door contacts the door frame and is pressed, causing the external hexagonal threaded rod 16 to move inward. This pushes the side rod 6, causing the first plastic part 3 and the second plastic part 4 to slide in the groove. This causes the first spring plate 8 and the second spring plate 9 to bend under force, pushing the aluminum alloy inner frame 2 and the sealing strip 7 downward to seal them with the ground, reducing the entry of noise. When the aluminum alloy inner frame 2 moves, the fixing block 12 can pull the third spring plate 11 to bend under force, enhancing the stability of the movement of the aluminum alloy inner frame 2. The good sealing at the bottom of the door effectively reduces the entry of external noise into the room. When the door is opened, the top rod 5 disengages from the door frame. The contact between the two spring plates allows the external hexagonal threaded rod 16 to be unpressurized, thus enabling it to be reset using the elastic force of the first spring plate 8 and the second spring plate 9. This causes the aluminum alloy inner frame 2 and the sealing strip 7 to move upwards into the aluminum alloy outer frame 1 and disengage from the ground. When the aluminum alloy inner frame 2 moves upwards, the inclined surfaces 19 of the plastic plugs 18 at both ends contact the aluminum alloy outer frame 1, which serves as a guide to prevent the aluminum alloy inner frame 2 from getting stuck when it springs back into the aluminum alloy outer frame 1. The tops of the two sets of plastic plugs 18 contact the first plug 17 and the second plug 20, respectively, which reduces the contact area between the aluminum alloy inner frame 2 and the aluminum alloy outer frame 1 and reduces resistance.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. An automatic door bottom sealing device, characterized in that, include: An aluminum alloy outer frame (1) is provided, and an aluminum alloy inner frame (2) is slidably connected inside the aluminum alloy outer frame (1). A sliding groove is provided inside the aluminum alloy outer frame (1) and at the top of the aluminum alloy inner frame (2). A first plastic part (3) and a second plastic part (4) are slidably connected inside the sliding groove. A sealing assembly for sealing the bottom of the door is provided inside the aluminum alloy outer frame (1). The top rod (5) of the sealing assembly pushes the sliding side rod (6) connected inside the sliding groove to slide, so that the side rod (6) pushes the first plastic part (3) and the second plastic part (4) to slide while driving the aluminum alloy inner frame (2) to move out of the aluminum alloy outer frame (1) and sealing the bottom of the door through the sealing strip (7) connected to the bottom of the aluminum alloy inner frame (2).

2. The automatic door bottom sealing device according to claim 1, characterized in that: The sealing assembly includes a first spring plate (8) and a second spring plate (9). The two ends of the side rod (6) are respectively connected to the first plastic part (3) and the second plastic part (4). A third plastic part (10) is fixedly connected inside the aluminum alloy outer frame (1) and inside the side rod (6). One end of the first spring plate (8) is screwed to the first plastic part (3) by screws, and the other end moves through the opening on the surface of the aluminum alloy inner frame (2) and then passes through another set of openings to be fixed to the third plastic part (10) by screws.

3. The automatic door bottom sealing device according to claim 2, characterized in that: One end of the second spring sheet (9) is fixed to the second plastic part (4) by screws, and the other end moves through the opening on the surface of the aluminum alloy inner frame (2) and then passes through another set of openings to be fixed to the fourth plastic part (15) fixed inside the aluminum alloy outer frame (1) by screws.

4. The automatic door bottom sealing device according to claim 2, characterized in that: The surface of the third plastic part (10) is fixed with a third spring plate (11) by screws, and one end of the third spring plate (11) moves through the opening on the surface of the aluminum alloy inner frame (2) and is fixed with the fixing block (12) by screws. The fixing block (12) is connected to the aluminum alloy inner frame (2).

5. The automatic door bottom sealing device according to claim 2, characterized in that: The aluminum alloy inner frame (2) is connected to the top of the first spring sheet (8) with a first plastic block (13), and the aluminum alloy inner frame (2) is connected to the top of the second spring sheet (9) with a second plastic block (14).

6. The automatic door bottom sealing device according to claim 1, characterized in that: One end of the first plastic part (3) is connected to an external hexagonal threaded rod (16) and the top rod (5) is threaded onto the surface of the external hexagonal threaded rod (16). The other end of the top rod (5) movably passes through the aluminum alloy outer frame (1), and a first plug (17) is provided at the point where the top rod (5) passes through the aluminum alloy outer frame (1).

7. The automatic door bottom sealing device according to claim 1, characterized in that: The aluminum alloy inner frame (2) has plastic plugs (18) inserted at both ends, and the surface of the plastic plugs (18) is provided with bevels (19).

8. The automatic door bottom sealing device according to claim 1, characterized in that: A second plug (20) is inserted into the other end of the aluminum alloy outer frame (1).

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