Rectangular tube door bottom frame profile structure

Abstract

The utility model discloses a rectangular tube door bottom frame section bar structure which comprises a frame body, a sealing piece is arranged on the top of the frame body, the sealing height of the sealing piece is adjustable, an adjusting piece is arranged in the frame body and can drive the sealing piece to change the sealing height, and a driving piece is further arranged on the frame body. The driving piece can drive the adjusting piece to increase the sealing height of the sealing piece. After the door leaf is closed, the driving piece drives the adjusting piece to increase the sealing height of the sealing piece, and the sealing piece can seal the gap between the frame body and the door leaf. Compared with the prior art, the frame body is matched with the door leaf to achieve wind blocking, the sealing piece can further guarantee that a gap is not prone to being generated between the frame body and the door leaf, and therefore the phenomenon that wind flows into the door leaf is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of door frame technology, and in particular, to a rectangular tube door bottom frame profile structure. Background Technology

[0002] The main functions of a door frame are to fix the door leaf, protect the corners of the wall, and for decoration. It is commonly used in the decoration process to protect the door from scratches, corrosion, damage, and dirt. For kitchens, in order to ensure the convenience of cleaning, many kitchen door frames are made of alloy profiles, which have strong oil resistance, are easy to clean, and have high gloss. Unlike wooden door frames, they do not crack due to long-term exposure to oil fumes, high temperatures, and humidity.

[0003] Most existing door frames are frameless, and to ensure smooth opening and closing of the door, there is often a gap between the door and the ground. This results in air leakage at the bottom of the door after it is closed. For example, in the windy northwest regions of my country, air leakage through the door is a thorny problem. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a rectangular tube door bottom frame profile structure.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A rectangular tube door bottom frame structure includes a frame body, a sealing element at the top of the frame body, the sealing height of the sealing element being adjustable, an adjusting element inside the frame body, the adjusting element being able to drive the sealing element to change its sealing height, and a driving element on the frame body, the driving element being able to drive the adjusting element to increase the sealing height of the sealing element when the door is closed.

[0007] Preferably, the sealing element includes a strip-shaped sealing airbag, and the adjusting element includes an adjusting airbag, which is connected to the sealing airbag.

[0008] Preferably, a through hole is provided on the side wall of the frame, and the driving component includes a driving shaft that is slidably adapted to the through hole, and the driving shaft is aligned with the adjusting airbag.

[0009] Preferably, the sealing element includes a strip-shaped sealing strip, and the adjusting element includes an adjusting shaft rotatably disposed on the frame, wherein a lead screw pair is adapted between the sealing strip and the adjusting shaft.

[0010] Preferably, a through hole is provided on the side wall of the frame, the driving component includes a driving rod that is slidably adapted to the through hole, an elastic element is connected to the driving rod, a toothed structure is provided on the side wall of the driving rod, and a gear is provided on the adjusting shaft, the toothed structure meshing with the gear.

[0011] Preferably, an elastic element is connected to the drive shaft.

[0012] Preferably, the drive rod is an arc-shaped rod.

[0013] Preferably, the top of the frame is provided with a mounting groove, and the sealing strip is disposed in the mounting groove.

[0014] The beneficial effects of this invention are as follows: After the door is closed, the driving component drives the adjusting component to increase the sealing height of the sealing component, which can seal the gap between the frame and the door. Compared with the prior art, this invention achieves wind blocking through the cooperation between the frame and the door, and the sealing component further ensures that gaps are not easily formed between the frame and the door, making it less likely for air to enter the door. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the frame;

[0016] Figure 2 This is a schematic diagram of the sealed airbag structure;

[0017] Figure 3 This is a schematic diagram of the sealing strip structure;

[0018] Figure 4 This is a schematic diagram of the drive rod.

[0019] Reference numerals: 1. Frame; 2. Seal; 3. Adjusting component; 4. Driving component; 5. Sealing airbag; 6. Adjusting airbag; 7. Through hole; 8. Drive shaft; 9. Sealing strip; 10. Adjusting shaft; 11. Drive rod; 12. Toothed structure; 13. Gear; 14. Mounting groove; 15. Door leaf. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1As shown, a rectangular tube door frame structure includes a frame 1, which can be a rectangular tube with an internal cavity. A sealing element 2 is provided at the top of the frame 1. The sealing element 2 is adapted to change its sealing height, meaning the height of the sealing element 2 protruding from the frame 1 is adjustable. An adjusting element 3 is also provided inside the frame 1, which can drive the sealing element 2 to change its desired sealing height. Furthermore, a driving element 4 is provided on the frame 1, which can drive the adjusting element 3 to increase the sealing height of the sealing element 2 when the door leaf 15 is closed, thereby eliminating the gap between the frame 1 and the door leaf 15, making it less prone to air leakage after the door leaf 15 is closed.

[0022] like Figure 2 As shown, in some embodiments, the sealing element 2 includes a strip-shaped sealing airbag 5, the length of which depends on the width of the door leaf 15, and can be adapted for use in actual production. The adjusting element 3 includes an adjusting airbag 6, and the adjusting airbag 6 is connected to the sealing airbag 5. For example, the adjusting airbag 6 and the sealing airbag 5 can be connected by a pipe; in some examples, the adjusting airbag 6 and the sealing airbag 5 can also be understood as the same airbag, the top of which protrudes from the frame 1, and the bottom of which is located inside the frame 1.

[0023] Therefore, by squeezing and releasing the regulating airbag 6, the sealing airbag 5 can be expanded or contracted, thereby changing the sealing height. Alternatively, the gas inside the regulating airbag 6 can be forced into the sealing airbag 5 using a pump or similar means to achieve the desired deformation of the sealing airbag 5.

[0024] In a preferred embodiment, a through hole 7 is provided on the side wall of the frame 1, and the drive component 4 includes a drive shaft 8 that slides within the through hole 7, with the drive shaft 8 aligned with the adjusting airbag 6. As the door 15 gradually closes, the stepped portion on the door 15 pushes the drive shaft 8 further into the frame 1. At this time, the drive shaft 8 compresses the adjusting airbag 6, thereby causing the sealing airbag 5 to expand to increase the sealing height. When the door 15 is opened, the sealing airbag 5 naturally contracts, reducing the volume of the frame 1 and making it less likely to affect people's normal walking.

[0025] For example, a pressure plate is slidably fitted inside the frame 1, and the drive shaft 8 is connected to the pressure plate. The pressure plate can more stably compress the adjusting airbag 6. In addition, a spring or other elastic element can be connected to the drive shaft 8. After the door 15 is opened, the elastic element can reset the drive shaft 8 to its initial position protruding from the frame 1, and the adjusting airbag 6 can return to its inflated state.

[0026] like Figure 3 , Figure 4As shown, in some embodiments, the sealing element 2 includes a strip-shaped sealing strip 9. For example, the top of the frame 1 is also provided with a mounting groove 14, in which the sealing strip 9 is slidably adapted. The adjusting element 3 includes an adjusting shaft 10 rotatably disposed at the mounting groove 14, and the adjusting shaft 10 and the sealing strip 9 are connected by a lead screw assembly, that is, a lead screw pair is formed between them. The lead screw drive is prior art, and its specific transmission principle and accessories will not be described in detail in this utility model.

[0027] Therefore, by controlling the forward and reverse rotation of the adjusting shaft 10, the sealing strip 9 can be raised or lowered, thereby changing the sealing height. For example, a micro motor can be installed inside the frame 1 to drive the adjusting shaft 10 to rotate as desired. In particular, when the door leaf 15 is closed, the micro motor can control the rotation of the adjusting shaft 10 to drive the sealing strip 9 to rise and abut against the bottom surface of the door leaf 15.

[0028] In a preferred embodiment, a through hole 7 is provided on the side wall of the frame 1, and the driving component 4 includes a driving rod 11 that slides into the through hole 7. A toothed structure 12 is provided on the side wall of the driving rod 11, and a gear 13 is correspondingly provided on the adjusting shaft 10. The gear 13 meshes with the toothed structure 12. As the door leaf 15 gradually closes, the stepped portion on the door leaf 15 pushes the driving rod 11 to slide further into the frame 1. At this time, the adjusting shaft 10 will rotate, thereby driving the sealing strip 9 to rise to increase the sealing height. Similarly, a spring or other elastic element is also connected to the driving rod 11. When the door leaf 15 is opened, the elastic element can reset the driving rod 11 to the initial position protruding from the frame 1. During this period, the adjusting shaft 10 reverses to drive the sealing strip 9 down into the mounting groove 14 without easily affecting people's normal walking.

[0029] For example, the drive rod 11 is an arc-shaped rod, so it can be regarded as a segment of the gear ring, which better matches the movement trajectory of the door leaf 15 and enables a more stable rotation drive for the adjustment shaft 10. Of course, the drive rod 11 can also be a straight rod, with an arc-shaped guide surface at its end protruding from the frame 1, which can also accept the push from the door leaf 15, and is less likely to fail to push the drive rod 11.

[0030] It should be understood that both the sealing strip 9 and the sealing airbag 5 mentioned above are elastic. Thus, when the door leaf 15 is closed and opposite the frame 1, the door leaf 15 can be squeezed and deformed to eliminate the gap between the door leaf 15 and the frame 1.

[0031] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A rectangular tube door bottom frame profile structure, characterized by: The utility model provides a frame (1) is provided with the sealing piece (2) on the top, the sealing height of sealing piece (2) can be adjusted, the frame (1) is provided with the adjusting piece (3) in, adjusting piece (3) can drive sealing piece (2) to change the sealing height, the frame (1) is further provided with the drive piece (4), when the door leaf (15) is closed, drive piece (4) can drive adjusting piece (3) to increase the sealing height of sealing piece (2).

2. A rectangular tube door bottom frame section according to claim 1, characterised in that: The sealing piece (2) comprises a strip-shaped sealing air bag (5), and the adjusting piece (3) comprises an adjusting air bag (6) in communication with the sealing air bag (5).

3. A rectangular tube door bottom frame section according to claim 2, c h a r a c t e r i s e d in that: A through hole (7) is formed in the side wall of the frame (1), and the drive piece (4) comprises a drive shaft (8) slidingly fitted in the through hole (7), and the drive shaft (8) is aligned with the adjusting air bag (6).

4. The rectangular tube door bottom frame section construction according to claim 1, characterized in that: The sealing piece (2) comprises a strip-shaped sealing strip (9), and the adjusting piece (3) comprises an adjusting shaft (10) rotatably arranged in the frame (1), and a screw pair is formed between the sealing strip (9) and the adjusting shaft (10).

5. A rectangular tube door bottom frame section according to claim 4, c h a r a c t e r i s e d in that: A through hole (7) is formed in the side wall of the frame (1), and the drive piece (4) comprises a drive rod (11) slidingly fitted in the through hole (7), and an elastic member is connected to the drive rod (11), a toothed structure (12) is arranged on the side wall of the drive rod (11), a gear (13) is arranged on the adjusting shaft (10), and the toothed structure (12) is engaged with the gear (13).

6. A rectangular tube door bottom frame section according to claim 3, characterised in that: An elastic member is connected to the drive shaft (8).

7. A rectangular tube door bottom frame section according to claim 5, characterised in that: The drive rod (11) is an arc-shaped rod.

8. A rectangular tube door bottom frame section according to claim 5, characterised in that: An installation groove (14) is arranged on the top of the frame (1), and the sealing strip (9) is arranged in the installation groove (14). An elastic member is connected to the drive shaft (8). The drive rod (11) is an arc-shaped rod. An installation groove (14) is arranged on the top of the frame (1), and the sealing strip (9) is arranged in the installation groove (14).

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