Waterproof door

Abstract

A waterproof door includes a door leaf and a waterproof strip disposed around the perimeter of the door leaf. The waterproof strip has an elastic body with a fluid chamber formed inside, and a valve communicating with the fluid chamber for filling the fluid chamber with fluid, causing the elastic body to expand and seal the gap between the door leaf and the surrounding structure. This waterproof strip can also be installed on a door frame, so that when the door leaf is closed, the expanded waterproof strip seals the gap between the door frame and the door leaf. Therefore, this waterproof door is suitable for various door types such as roller shutters, sliding doors, and pivot doors, offering high versatility and excellent waterproof performance.

Description

Waterproof door Technical Field

[0001] This work relates to the waterproof structure of doors, specifically a type of waterproof door that uses expandable elastic waterproof strips to seal gaps and improve waterproofing. Prior Technology

[0002] Existing waterproof doors, or doors with waterproof features, primarily rely on waterproof strips, waterproof rubber strips, or rubber sealing strips for waterproofing. These materials are placed around the door leaf or in the water-stop grooves of the door frame, or combined with specially designed water-stop structures to form a seal when the door is closed. However, these structures typically rely only on the elasticity or slight compression deformation of the materials themselves to conform to the surface of the door leaf or frame, making it difficult to generate sufficient pressure to completely fill gaps. Especially when there are unevenness, deformation, or thermal expansion and contraction in the door frame or ground, their waterproofing effect is limited.

[0003] Furthermore, existing waterproofing structures often require different shapes and sizes of waterproofing strips depending on the door type. For example, roller shutters and lift doors require different types of bottom waterproofing strips, while single-leaf and double-leaf pivot doors require separate edge waterproofing structures. This approach, which relies on designing dedicated waterproofing components for different door types, not only increases design and construction costs but also lacks applicability.

[0004] Therefore, there is an urgent need to provide a waterproofing technology that can generate pressure to fill gaps and is applicable to various door types. Summary of the Invention

[0005] In view of the prior art described above, one of the objectives of this invention is to provide a waterproof door that employs a waterproof strip that can expand upon fluid filling, thereby tightly sealing gaps to achieve a superior waterproof effect. Furthermore, the waterproof strip is suitable for various door types, thus possessing high applicability.

[0006] To achieve the above objectives, this invention provides a waterproof door, including a door leaf and a waterproof strip located around the periphery of the door leaf. The waterproof strip has an elastic body with a fluid chamber formed inside, and a valve communicating with the fluid chamber for filling the fluid chamber with fluid, causing the elastic body to expand and thereby sealing the gap between the door leaf and the surrounding structure.

[0007] By utilizing the aforementioned technical features, waterproof strips that expand and deform when filled with fluids such as pressurized gas or liquid can effectively seal the gap between the door leaf and the door frame when the door is closed, achieving a good waterproof effect. Secondly, the waterproof strips are made of elastic materials, possessing good shape conformability and a simple structure, allowing them to be easily installed around the edges of various door types such as roller doors, sliding doors, and pivot doors, thus exhibiting high applicability.

[0008] Preferably, the elastic body may have a fixed part and an expansion part connected to the fixed part. The fixed part is fixed to the periphery of the door leaf, and the expansion part has a fluid chamber that expands when fluid fills the fluid chamber. In this way, the fixed part can be fixed to the periphery of the door leaf by various fasteners such as screws and rivets, or other suitable methods such as adhesives or ultrasonic welding, and the elastic expansion deformation of the expansion part seals gaps, thereby improving installation convenience and enhancing waterproofing.

[0009] Preferably, the fixing part of the elastic body has a locking groove that engages with the periphery of the door leaf. This improves the ease of assembling and disassembling the waterproof strip.

[0010] Preferably, the periphery of the door leaf includes a first side, a second side opposite to the first side, and a bottom edge connecting the first side and the second side; the waterproof strip extends to the first side, the bottom edge, and the second side of the door leaf. This creates a complete circumferential waterproofing effect.

[0011] Preferably, the waterproof door may further include a baffle unit fixed to the bottom edge of the door leaf; the baffle unit has a limiting groove in which the expansion portion of the elastic body is accommodated, and the limiting groove has a bottom opening that is sealed when the expansion portion expands. This enhances the waterproof effect at the bottom and limits the deformation direction of the expansion portion, helping to fill and seal the gap between the bottom edge of the door leaf and the uneven ground.

[0012] Preferably, the baffle unit includes a front baffle and a rear baffle, which are clamped and fixed to the bottom edge of the door leaf and the fixing part of the waterproof strip, and the limiting groove is formed between the front and rear baffles. This facilitates the manufacturing and assembly of the baffle unit.

[0013] Preferably, the front stop includes a front fixed base plate and a sliding baffle disposed in front of the front fixed base plate that can slide up and down relative to the front fixed base plate; the rear stop includes a rear fixed base plate and a sliding baffle disposed behind the rear fixed base plate that can slide up and down relative to the rear fixed base plate; the front and rear fixed base plates sandwich and fix the bottom edge of the door leaf and the fixing part of the waterproof strip, and the front and rear sliding baffles form the limiting groove. In this way, the up-and-down sliding front and rear sliding baffles can move slightly in response to changes in the expansion portion or when contacting the ground or door frame, further improving the sealing effect.

[0014] Preferably, the waterproof door may also include a sliding track that accommodates the perimeter of the door leaf and the waterproof strip. In this way, when the waterproof strip expands and deforms, it will be restricted by the sliding track wall and fill the gap between the sliding track wall and the perimeter of the door leaf, thereby achieving a better waterproof effect.

[0015] In one embodiment of this invention, a waterproof strip can be disposed on a door frame, so that its expanded elastic body seals the gap between the door frame and the door leaf. Therefore, the waterproof door provided by this invention includes a door frame with an entrance / exit, a door leaf operable from the entrance / exit, and a waterproof strip disposed on the door frame. The waterproof strip includes an elastic body with an internal fluid chamber, and a valve communicating with the fluid chamber to fill it with fluid, causing the elastic body to expand and seal the gap between the door frame and the door leaf. This also achieves good waterproofing and high applicability.

[0016] Preferably, the door leaf may comprise multiple interconnected door panels, and at least one waterproof strip is provided at the joint of the door panels. This waterproof strip has a middle section that can expand and be fixed within the door panel. Thus, the waterproof strip provided by this invention is applicable to various styles and types of door leaves, offering not only high applicability but also excellent waterproofing performance.

[0017] Detailed construction, features, assembly, and usage of the waterproof door provided by this invention will be described in the subsequent detailed description of the embodiments. However, those skilled in the art should understand that such detailed descriptions and the specific embodiments listed in this invention are for illustrative purposes only and are not intended to limit the scope of the patent application. Simple Explanation of the Diagram

[0018] Figure 1 is a three-dimensional assembly diagram of the waterproof door provided in a first preferred embodiment of this invention. Figure 2 is a partial exploded perspective view of the waterproof door provided in the first preferred embodiment of this invention. Figure 3A is a perspective view of the waterproof strip of the waterproof door provided in the first preferred embodiment. Figure 3B is an enlarged view of part A in Figure 3A. Figure 4 is a cross-sectional view of Figure 1 along section line 4-4. Figure 5 is a cross-sectional view of Figure 1 along section line 5-5. Figure 6A is a three-dimensional assembly diagram of the waterproof door provided in a second preferred embodiment of this invention. Figure 6B is an enlarged view of part A in Figure 6A. Figure 7 is a three-dimensional assembly diagram of the waterproof door provided in the third preferred embodiment of this invention. Figure 8 is a three-dimensional assembly diagram of the waterproof door provided in the fourth preferred embodiment of this invention. Figure 9 is a partial three-dimensional exploded view of the waterproof door provided in the fourth preferred embodiment of this invention. Figure 10 is a three-dimensional exploded view of the waterproof door provided in the fifth preferred embodiment of this invention. Figure 11 is a three-dimensional assembly diagram of the waterproof door provided in the sixth preferred embodiment of this invention. Figure 12 is a partial three-dimensional exploded view of the waterproof door provided in the sixth preferred embodiment of this invention. Figure 13 is a three-dimensional schematic diagram of the combination of the door leaf and the waterproof strip of the waterproof door provided in the sixth preferred embodiment of this invention. Figure 14 is a sectional view of Figure 13 along section line 14-14. Implementation

[0019] The applicant first clarifies that in the embodiments and drawings described below, the same reference numerals denote the same or similar elements or their structural features. It should be noted that the elements and structures in the drawings are for illustrative purposes and are not drawn to scale or in quantity; and features of different embodiments may be used interchangeably if feasible in practice. Secondly, when it is stated that an element is disposed on another element, it means that the aforementioned element is directly disposed on the other element, or that the aforementioned element is indirectly disposed on the other element; that is, one or more other elements are disposed between the two elements. Conversely, when it is stated that an element is "directly" disposed on another element, it means that no other elements are disposed between the two elements.

[0020] Please refer to Figures 1 to 5. The waterproof door 1 provided in the first preferred embodiment of this invention includes a door leaf 10 and a waterproof strip 20 disposed around the periphery of the door leaf 10.

[0021] In this embodiment, the door leaf 10 is illustrated by taking a rolling iron door made of multiple semi-circular door panels that are pivotally connected to each other and can be rolled up and extended. However, this invention is not limited to this. For example, the door leaf 10 applicable to this invention can be a common sliding door made of single or multiple panel door panels, a single-leaf pivot door, or a double-leaf pivot door. Secondly, in this embodiment, the periphery of the door leaf 10 includes a first side 11, a second side 13 opposite to the first side 11, and a bottom edge 15 connecting the first side 11 and the second side 13. The waterproof strip 20 extends to the first side 11, the bottom edge 15, and the second side 13 of the door leaf 10. However, this invention is not limited to this. For example, the waterproof strip 20 may be provided only in a certain part or all of the bottom edge 15 of the door leaf 10, or it may extend only to half the height of the first side 11, the bottom edge 15, and half the height of the second side 13. Moreover, the waterproof strip 20 is not limited to being extended as a whole around the periphery of the door leaf 10. For example, the waterproof strip 20 may also include multiple independent waterproof segments, which are respectively provided at specific positions of the door leaf 10.

[0022] The waterproof strip 20 may be (but is not limited to) made of an elastic material such as rubber or thermoplastic polyurethane (TPU), and has an elastic body 22 and a valve 24. As shown, the elastic body 22 conforms to the door leaf 10 in the form of a rolling shutter door and has two wavy, opposite sides 221 and a straight bottom edge 223 integrally connected to the sides 221, so that the whole is generally U-shaped. Furthermore, a fixing part 26 is formed on the inner side of the elastic body 22, and an expansion part 28 connected to the fixing part 26 is formed on the outer side. The fixing part 26 has two separate, solid inserts 261, forming an insert groove 263 between the two inserts 261. This insert groove 263 directly engages or, after applying adhesive, engages with the periphery of the door leaf 10, allowing the waterproof strip 20 to be quickly and securely assembled to the door leaf 10. In addition, the expansion section 28 has a fluid chamber 281 inside, which extends and is distributed throughout the side 221 and bottom 223 and communicates with the valve 24.

[0023] In this embodiment, the fluid chamber 281 is a gas chamber that can be filled with high-pressure gas, and the valve 24 can be implemented using a common bicycle tire valve. When high-pressure gas is injected into the fluid chamber 281 through the valve, the expansion part 28 will be compressed and expand outward. In this way, when the door 10 is closed, it can tightly seal the gap between the door 10 and the track (not shown in the figure) and / or the ground, thus achieving a good waterproof effect. It should be noted that the fluid chamber 281 is not limited to being a gas chamber that can be filled with high-pressure gas. For example, the fluid chamber 281 can be implemented as a liquid chamber that can be filled with high-pressure liquid. In this case, the valve 24 can be a check valve that communicates with the fluid chamber 281.

[0024] As shown in Figures 1, 2, and 5, in this embodiment, in addition to the door leaf 10 and the waterproof strip 20, the waterproof door 1 may optionally be equipped with a baffle unit 30. The baffle unit 30 has a front baffle 32 and a rear baffle 34. The upper halves of the front and rear baffles 32 and 34 are clamped and fixed to the fixing part 26 of the bottom edge 15 of the door leaf 10 and the bottom edge 223 of the waterproof strip 20. A limiting groove 36 is formed between the lower halves of the front and rear baffles 32 and 34 to accommodate the expansion part 28 of the bottom edge 223 of the waterproof strip 20. The limiting groove 36 has a bottom opening 361. When the expansion part 28 expands, the front and rear sides of the expansion part 28 can be restricted by the front and rear baffles 32 and 34, so that the bottom of the expansion part 28 can expand downward through the bottom opening 361 and press against the ground (or the bottom of the door frame). In this way, the expansion part 28 will seal the bottom opening 361 and provide a good water-stopping effect between the ground (or the bottom of the door frame) and the bottom edge 15 of the door leaf 10.

[0025] In detail, in this embodiment, the front stop 32 includes a front fixed base plate 321 and a sliding baffle 323 disposed in front of the front fixed base plate 321 that can slide up and down relative to the front fixed base plate 321, while the rear stop 34 includes a rear fixed base plate 341 and a sliding baffle 343 disposed behind the rear fixed base plate 341 that can slide up and down relative to the rear fixed base plate 341. As shown in Figure 5, the front and rear fixed base plates 321 and 341 are clamped and fixed to the bottom edge 15 of the door leaf 10 and the fixing part 26 of the waterproof strip 20 using bolts (not shown in the figure). The front and rear sliding baffles 323 and 343 have corresponding elongated slots 325 and 345 (refer to Figure 2), and can be slidably disposed in front of and behind the front and rear fixed base plates 321 and 341 respectively by means of fixing bolts (not shown in the figure) passing through the elongated slots 325 and 345. The limiting groove 36 is formed between the front and rear sliding baffles 323 and 343. It should be noted that in this embodiment, the front and rear baffles 32 and 34 are implemented as two components, but this invention is not limited to this. For example, the front and rear baffles 32 and 34 can be implemented as a single component.

[0026] Based on the aforementioned technical features of this invention, the door leaf 10 and waterproof strips 20 of the waterproof door 1 provided by this invention can have various variations to adapt to doors of various structural types and provide equivalent or better waterproof effects.

[0027] For example, Figures 6A and 6B depict a waterproof door 1 provided by a second preferred embodiment of the present invention, wherein the door leaf 10 includes a plurality of circularly shaped tubular components 19, which can be pivotally connected to each other to allow the door leaf 10 to be rolled up, or fixedly connected to each other to give the door leaf 10 a stronger structural strength. Furthermore, the elastic body 22 of the waterproof strip 20 is compliantly formed into a figure-eight shaped side 221, thus providing a better, double-layered waterproof effect on the first side 11 and the second side 13 of the door leaf 10.

[0028] For example, Figure 7 depicts a waterproof door 1 provided in a third preferred embodiment of the present invention. In this embodiment, the waterproof door 1 is implemented as a double-leaf, pivotable double-leaf door. As shown in the figure, the first side 11 of the door leaf 10 on the left side of the figure is pivotally mounted to the door frame 60 or directly mounted to the wall. Under the premise that sufficient structural waterproofing is provided at this pivoting point, the waterproof strip 20 can only extend to the second side 13 and bottom edge 15 of the left side of the door leaf 10. For the door leaf 10 on the right side of the figure, the waterproof strip 20 can only extend to its bottom edge 15. Furthermore, in addition to being fixed to the door leaf 10 by interlocking, the waterproof strip 20 can be fixed to the periphery of the door leaf 10 by various fasteners such as screws and rivets or other suitable methods such as adhesives or ultrasonic welding. In other words, the fixing part 26 of the waterproof strip 20 provided in the present invention is not limited to having a locking groove 263, as long as it can be firmly fixed to the door leaf 10. However, the fixing part 26 is configured with a locking groove 263, which allows the waterproof strip 20 to be easily and quickly assembled onto the door leaf 10, making it a better design. In addition, if the waterproof door 1 of this invention is implemented as a single-leaf, pivotable single-opening pivot door, the waterproof strip 20 can also be extended only onto the second side 13 and bottom edge 15 of the door leaf 10.

[0029] For example, Figures 8 and 9 depict a waterproof door 1 provided in a fourth preferred embodiment of the present invention. In this embodiment, the waterproof door 1 is implemented as a sliding door with multiple door panels. As shown, the fixing part 26 of the waterproof strip 20 has a snap-fit ​​protrusion 267, which can be snapped into the snap-fit ​​groove (not shown) provided around the periphery of the door leaf 10. In this way, the waterproof strip 20 can be easily and quickly assembled onto the door leaf. Secondly, the door frame 60 or the wall is provided with slide rails 65 corresponding to the first side 11 and the second side 13 of the door leaf 10, respectively (only the slide rail corresponding to the first side 11 is shown in Figure 9). In this way, the first side 11 and the second side 13 of the door leaf 10 can be slidably placed into the slide rails 65. Moreover, when the expansion part 28 expands and deforms, the expansion part 28 is restricted by the wall surface of the slide rail 65 and fills the gap between the wall surface of the slide rail 65 and the first side 11 or the second side 13 of the door leaf 10, thereby achieving a good waterproof effect.

[0030] In fact, the waterproof door provided by this invention has a waterproof strip that can be installed on the door frame or wall, so that the expanded elastic body seals the gap between the door frame (or wall surface) and the door leaf. Taking Figure 9 as an example, the waterproof door 1 provided by this invention will include a door frame 60 with an entrance 69, a door leaf 10 that can be opened and closed (e.g., by sliding, pivoting or other means) located at the entrance 69, and a waterproof strip 20 that is the same as or similar in structure to that disclosed in the previous embodiment and is installed on the door frame 60 (e.g., fixed to the door frame 60 at the positions corresponding to the first side 11, bottom edge 15 and second side 13 of the door leaf 10). In this way, the expanded waterproof strip 20 can seal the gap between the door frame 60 and the door leaf 10, thus achieving a good waterproof effect.

[0031] Figure 10 depicts a waterproof door 1 provided in a fifth preferred embodiment of the present invention. In this embodiment, the waterproof door 1 is implemented as a sliding door with multiple door panels. The overall structure of this waterproof door 1 is similar to that of the waterproof door 1 provided in the embodiments shown in Figures 8 and 9. However, the difference is that the waterproof strip 20 has a bottom edge 223 that can be set between the bottom edge 15 of the door leaf 10 and the ground or the bottom of the door frame, and a side edge 221 that can be set between the first side edge 11, the second side edge 13 and the slide rail 65 of the door leaf 10. It also has a middle section 225 located in the middle of the bottom edge 223 that can be expanded and extended. This middle section 225 can be inserted into the door panel 10a of the door leaf 10, which can slide and rise and fall with each other. When expanded, it can be embedded and fixed in the door panel 10a. Furthermore, at the joints of the front and rear sides of the door panels 10a, a water-stop strip 29 made of an elastic material such as rubber is embedded and fixed. In this way, a good waterproof effect can be achieved.

[0032] Figures 11 to 14 depict a waterproof door 1 provided by a sixth preferred embodiment of the present invention. In this embodiment, the door frame 60 is also provided with a slide rail 65, and the door leaf 10 can slide up and down along the slide rail 65 and roll up. The door leaf 10 has a roll-up portion 10b that can be rolled up and extended, and a sheet-like door panel portion 10c fixed to the front surface of the roll-up portion 10b and can be rolled up and extended together with the roll-up portion 10b. The waterproof strip 20 also has a fixing portion 26 and an expansion portion 28 with a fluid chamber 281. The fixing portion 26 of the waterproof strip 20 is embedded in the periphery of the door panel portion 10c and can seal the gap between the door leaf 10, the slide rail 65 and the ground when the door leaf 10 is closed. In other words, the waterproof door 1 provided by the present invention can be applied to door leaves 10 of various structures and can achieve good waterproof effect.

[0033] In summary, the waterproof door provided by this invention includes a door leaf and a waterproof strip located around the perimeter of the door leaf. By using a waterproof strip that can expand and deform when filled with fluids such as pressurized gas or liquid, it can effectively seal the gaps between the door leaf and the door frame or wall when the door leaf is closed, achieving a good waterproof effect. Furthermore, it is applicable to various door types such as roller doors, sliding doors, and pivot doors, thus possessing high versatility.

[0034] Finally, it must be stated again that the constituent elements disclosed in the foregoing embodiments are merely illustrative examples and are not intended to limit the scope of this application. Substitutions or variations of other equivalent elements should also be covered by the scope of this application.

[0035] 1: Waterproof door 10: Door leaf 10a: Door panel 10b: Rolling-up section 10c: Door panel section 11: First side 13: Second side 15: Bottom edge 19: Pipe fittings 20: Waterproof strip 22: Flexible body 221: Side 223: Bottom edge 225: Middle Section 24: Valves 26: Fixing part 261: Embedded Card 263: Embedded groove 267: Embedded protrusion strip 28: Expansion section 281: Fluid Chamber 29:Water stop strip 30: Baffle unit 32: Front bumper 321: Front fixed base plate 323: Front sliding baffle 325: Long slot hole 34: Rear bumper 341: Rear fixed substrate 343: Rear sliding baffle 345: Long slot hole 36: Limiting groove 361: Bottom opening 60: Door frame 65: Slide rail 69: Entrance / Exit

Claims

1. A waterproof door comprising: a door leaf; and a waterproof strip located around the periphery of the door leaf; the waterproof strip comprising: a resilient body having a fluid chamber disposed therein; and a valve communicating with the fluid chamber for filling fluid into the fluid chamber to cause the resilient body to expand.

2. The waterproof door as claimed in claim 1, wherein the elastic body has a fixing part and an expansion part connected to the fixing part, the fixing part being fixed to the periphery of the door leaf, the expansion part having the fluid chamber, the expansion part expanding when fluid is filled into the fluid chamber.

3. The waterproof door as described in claim 2, wherein the fixing part of the elastic body has a locking groove that engages with the periphery of the door leaf.

4. The waterproof door as described in claim 2, wherein the periphery of the door leaf includes a first side, a second side opposite to the first side, and a bottom edge connecting the first side and the second side; the waterproof strip extends to the first side, the bottom edge, and the second side of the door leaf.

5. The waterproof door as described in claim 4 further includes a baffle unit fixed to the bottom edge of the door leaf; the baffle unit has a limiting groove in which the expansion portion of the elastic body is accommodated, the limiting groove having a bottom opening that seals the bottom opening when the expansion portion expands.

6. The waterproof door as described in claim 5, wherein the baffle unit includes a front baffle and a rear baffle, the front and rear baffles being clamped and fixed to the bottom edge of the door leaf and the fixing portion of the waterproof strip, and the limiting groove is formed between the front and rear baffles.

7. The waterproof door as described in claim 6, wherein the front stop includes a front fixed base plate and a sliding baffle disposed in front of the front fixed base plate that can slide up and down relative to the front fixed base plate; the rear stop includes a rear fixed base plate and a sliding baffle disposed behind the rear fixed base plate that can slide up and down relative to the rear fixed base plate; the front and rear fixed base plates sandwich and fix the bottom edge of the door leaf and the fixing portion of the waterproof strip, and the limiting groove is formed between the front and rear sliding baffles.

8. A waterproof door, comprising: a door frame having an entrance / exit; a door leaf operablely disposed at the entrance / exit; and a waterproof strip disposed on the door frame; the waterproof strip comprising: an elastic body having a fluid chamber disposed therein; and a valve communicating with the fluid chamber for filling fluid into the fluid chamber, causing the elastic body to expand and seal the gap between the periphery of the door frame and the door leaf.

9. The waterproof door as described in any one of claims 1 to 8 further includes a slide rail that accommodates the periphery of the door leaf and the waterproof strip.

10. A waterproof door as described in any one of claims 1 to 8, wherein the door leaf comprises a plurality of interconnected door panels, and at least one waterproof strip is provided at the joint of the door panels; the waterproof strip has an intermediate section that can be expanded and fixed in the door panel.

Images