Garage door plate structure with hidden hinge

Abstract

The invention belongs to the technical field of building energy-saving garage door plates, and particularly relates to a garage door plate structure with hidden hinges. Comprising a door plate assembly, a bottom sealing piece, a beam piece and a hinge assembly. The structural strength of the strip-shaped door plate is enhanced through the strip-shaped concave-convex structure of the end face of the strip-shaped door plate; the embedded design of the inserting groove is matched, meanwhile, the strip-shaped sealing strip is arranged in the T-shaped groove, a multi-stage sealing barrier is formed, the hinge assembly is completely hidden in the strip-shaped door plate, and when the strip-shaped door plate moves, through linkage of the rubber ring and the grease cavity, an active sealing mechanism of movement extrusion-lubrication compensation is achieved; the use effect of the side connection hinge group is further improved; in order to guarantee the structural strength of the strip-shaped door plate, the door plate plug blocks and the U-shaped hinges form local reinforcing joints through self-tapping screws, the door plate plug blocks and the U-shaped hinges form an integrated connecting system with the pin shafts of the middle connecting hinge set, the reliability of hinge connecting points is fully improved, and the hinge connecting points are not prone to deformation in the uncoiling process.

Description

Technical Field

[0001] This invention belongs to the field of energy-saving garage door panel technology, and particularly relates to a garage door panel structure with a concealed hinge. Background Technology

[0002] As part of the building envelope, garage door panels directly control the heat exchange between the building and the outside world through their thermal insulation performance, material structure, and radiation treatment characteristics, thereby affecting the energy consumption of heating and cooling equipment. In the context of increasingly important building energy conservation, choosing energy-efficient garage doors that meet the standards can not only reduce operating costs, but is also a key link in achieving the overall energy conservation goals of the building.

[0003] Currently, in the design and manufacturing process of garage door panels, the structure of the door panel and hinges directly affects the product's durability, aesthetics, and performance. Traditional garage doors typically use exposed hinges to connect the door panel, enabling the door to fold or flip. However, this design has the following technical drawbacks: the exposed mechanical structure of the hinges is obvious, affecting the overall appearance of the door panel and making it difficult to meet the demands of modern architecture for simple and concealed designs; at the same time, the hinges are exposed to the elements, and long-term exposure to rain, dust, and ultraviolet rays can easily lead to lubrication failure, rust, or jamming, shortening their service life.

[0004] To address the aforementioned issues, some manufacturers have attempted to use semi-concealed hinges or improve hinge materials (such as stainless steel and engineering plastics). However, these limitations remain: First, the concealment depth is insufficient; although some hinges are partially embedded in the door panel, the seams are still visible, affecting aesthetics. Second, the enclosed environment of concealed hinges may lead to lubricant evaporation or dust accumulation, accelerating wear. Additionally, the connection between concealed hinges and the door panel is prone to loosening and detachment during long-term use, resulting in insufficient connection strength.

[0005] Therefore, there is an urgent need for a truly concealed, highly reliable, and low-maintenance garage door hinge structure to address the shortcomings of existing technologies; to this end, this invention proposes "a garage door panel structure with concealed hinges". Summary of the Invention

[0006] In view of the above problems, the present application provides a garage door panel structure with a concealed hinge, which optimizes the concealment, durability and functionality of the hinge through innovative design to meet the high performance requirements of modern garage doors.

[0007] To achieve the above objectives, the present application provides the following technical solution: a garage door panel structure with a concealed hinge, including a door panel assembly, a bottom seal, a crossbeam, and a hinge assembly.

[0008] The door panel assembly is composed of several strip door panels connected sequentially by a hinge assembly, which includes a side-connecting hinge group and a center-connecting hinge group.

[0009] The strip door panel has a strip-shaped concave-convex structure on one end along the thickness direction and a flat structure on the other end, with a hollow structure inside; an insertion groove is provided at one end along the width direction, and a T-shaped groove is provided on the side of the flat structure of the strip door panel near this end, and a strip-shaped sealing strip is installed in the T-shaped groove.

[0010] The connecting hinge group includes a first hinge installed in the middle of one side of the strip door panel located in the insertion slot, and two second hinges located on the corresponding sides of adjacent strip door panels. The two second hinges are distributed on both sides of the first hinge, and the corresponding first hinge and second hinge are rotatably connected by a pin.

[0011] The side-connecting hinge assembly includes two U-shaped hinges installed on the strip-shaped concave-convex structure surface of the strip door panel. The U-shaped hinges are fixed by door panel plugs and self-tapping screws, and adjacent U-shaped hinges are connected by a single-bearing hinge shaft.

[0012] According to an advantageous embodiment, a crossbeam is inserted and installed at the bottom of the door panel assembly, and a bottom seal is inserted and installed at the lower end of the crossbeam.

[0013] According to an advantageous embodiment, the end of the bottom seal that connects to the crossbeam is symmetrically provided with a snap-fit ​​member with an arrow-shaped cross-section, and the end of the crossbeam that contacts the bottom seal has an arc-shaped structure.

[0014] According to an advantageous embodiment, one end of the crossbeam is provided with an outwardly flared protruding insert that mates with the insertion slot on the strip door panel.

[0015] According to an advantageous embodiment, the U-shaped hinge includes a male-end hinge hole and a female-end hinge hole. Except for the U-shaped hinge connected to the crossbeam member, the female-end hinge holes of the other U-shaped hinges are provided with mounting grooves that mate with the male-end hinge holes.

[0016] According to an advantageous embodiment, each hinge hole of the U-shaped hinge is internally fitted with an inner flower-shaped bushing, and the male and female hinge holes of the U-shaped hinges on two adjacent strip door panels are connected to a single bearing hinge shaft after being fitted together.

[0017] According to an advantageous embodiment, a self-lubricating hinge wheel is fixedly mounted on the single-bearing hinge shaft.

[0018] According to an advantageous embodiment, the self-lubricating hinge wheel includes a wheel body and a rubber ring fitted on the outer circumferential surface of the wheel body, and a bearing is installed inside the wheel body.

[0019] According to an advantageous embodiment, the wheel body has a grease chamber inside, which is filled with lubricating grease, and the oil inlet of the grease chamber is sealed by a rubber ring.

[0020] According to an advantageous embodiment, the oil outlet of the grease chamber corresponds to the ball inside the bearing.

[0021] Compared with the prior art, the garage door panel structure with a concealed hinge provided by the present invention has the following beneficial effects: 1. The present invention enhances the structural strength of the strip door panel by using the strip-shaped concave-convex structure on the end face of the strip door panel; combined with the nested design of the insertion groove, and the setting of the strip sealing strip in the T-groove, a multi-level sealing barrier (mechanical interlocking seal + elastic sealing strip) is formed, so that the hinge assembly is completely hidden inside the strip door panel. When the strip door panel moves, the active sealing mechanism of "movement compression - lubrication compensation" is realized through the linkage of the rubber ring and the grease chamber, which further improves the performance of the side-connected hinge assembly.

[0022] 2. The inner flower-shaped bushing and the self-lubricating hinge wheel of the present invention constitute a lubrication and load-bearing combined unit. The oil outlet of the grease chamber and the bearing balls are designed to match each other, which greatly improves both lubrication efficiency and mechanical load-bearing strength.

[0023] 3. In this invention, the door panel plug and the U-shaped hinge form a local reinforcing node through self-tapping screws, which, together with the pin connecting the hinge group, constitute an integrated connection system, which fully improves the reliability of the hinge connection point. At the same time, the dispersed local reinforcing nodes further enhance the structural strength of the strip door panel, making it less prone to deformation during the unrolling process. Attached Figure Description

[0024] Figure 1 This is a front three-dimensional structural diagram of the garage door panel of the present invention.

[0025] Figure 2 For the present invention Figure 1 A magnified view of section A in the image.

[0026] Figure 3 This is a schematic diagram of the reverse three-dimensional structure of the garage door panel of the present invention.

[0027] Figure 4 For the present invention Figure 3 A schematic diagram of the three-dimensional structure after removing one strip of door panel.

[0028] Figure 5 For the present invention Figure 4 A magnified view of section B in the image.

[0029] Figure 6 This is a front perspective view of the connection between the door panel assembly, the crossbeam, and the bottom seal of the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram of the connection between the door panel assembly, the crossbeam, and the bottom seal of the present invention.

[0031] Figure 8 This is a cross-sectional view of the internal structure of the self-lubricating hinge wheel of the present invention.

[0032] Figure 9 For the present invention Figure 4 A magnified view of section C in the image.

[0033] The attached diagram shows the following labels: 1. Door panel assembly; 11. Strip door panel; 111. Insert groove; 112. T-slot; 113. Strip sealing strip; 2. Bottom seal; 21. Snap-fit ​​component; 3. Crossbeam component; 31. Protruding insert; 4. Hinge assembly; 41. Side connecting hinge group; 411. U-shaped hinge; 412. Door panel plug; 413. Self-tapping screw; 414. Mounting groove; 415. Inner flower-shaped bushing; 416. Single bearing hinge shaft; 42. Middle connecting hinge group; 421. Hinge No. 1; 422. Hinge No. 2; 423. Pin shaft; 5. Self-lubricating hinge wheel; 51. Wheel body; 52. Rubber ring; 53. Grease chamber. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 This application will now be described in further detail.

[0035] Please see Figure 1 A garage door panel structure with a concealed hinge includes a door panel assembly 1, a bottom seal 2, a crossbeam 3, and a hinge assembly 4; the bottom of the door panel assembly 1 is inserted and installed with the crossbeam 3, and the bottom seal 2 is inserted and installed at the lower end of the crossbeam 3; the door panel assembly 1 is composed of several strip door panels 11 connected in sequence by the hinge assembly 4.

[0036] During installation, hinge assemblies 4 are first installed symmetrically on both sides of the strip door panel 11. Then, the hinge assemblies 4 on two adjacent strip door panels 11 are connected to each other. A crossbeam 3 is inserted and installed on the bottom strip door panel 11, and a bottom seal 2 is inserted and installed on the other end of the crossbeam 3. The bottom seal 2 seals the ground, thus preventing dust, rainwater, etc. from entering the garage. The insertion method effectively improves the convenience of installation, and the wide insertion area made use of the structural features in the horizontal direction effectively ensures the snap-fit ​​strength between the strip door panel 11 and the crossbeam 3, as well as between the crossbeam 3 and the bottom seal 2.

[0037] Please see Figure 1 and Figure 3 The hinge assembly 4 includes a side connecting hinge group 41 and a middle connecting hinge group 42. The side connecting hinge group 41 is connected to the side of two adjacent strip door panels 11, and the middle connecting hinge group 42 is connected to the middle of one end face of two adjacent strip door panels 11 that are close to each other.

[0038] The hinge assembly 4 achieves a three-point uniform distribution of load-bearing capacity between two adjacent strip door panels 11, thereby effectively ensuring the force balance between the two adjacent strip door panels 11 during folding or flipping, and further ensuring the structural strength of the strip door panel 11 and the smoothness of the folding or flipping process.

[0039] Please see Figure 1 , Figure 2 and Figure 3 The strip door panel 11 has a strip-shaped concave-convex structure on one end face along the thickness direction and a flat structure on the other end face. The strip-shaped concave-convex structure design on the end face effectively improves the connection strength between it and the side connecting hinge group 41. At the same time, the interior of the strip door panel 11 adopts a hollow structure design, which further improves the lightweight design of the strip door panel 11. One end of the strip door panel 11 along the width direction is provided with an insertion groove 111. And the end with the insertion groove 111 is provided with a T-shaped groove 112 on the side of the flat structure of the strip door panel 11. A strip sealing strip 113 is installed inside the T-shaped groove 112.

[0040] The strip sealing strip 113 installed inside the T-slot 112 helps to improve the sealing of the connection position between two adjacent strip door panels 11. On the one hand, it ensures the aesthetics of the joint, and on the other hand, it can prevent dust and rainwater from entering the interior of the strip door panel 11 along the joint and corroding the internal hinge assembly 4, thereby ensuring the smoothness of the rotation of the internal part of the hinge assembly 4.

[0041] See Figure 5 and Figure 6 The bottom seal 2 is symmetrically provided with a long strip-shaped snap-fit ​​member 21 with an arrow-shaped cross-section at one end connected to the crossbeam 3, and the end of the crossbeam 3 that contacts the bottom seal 2 has an arc-shaped structure; the bottom seal 2 and the crossbeam 3 are connected and engaged with the arc-shaped structure through the snap-fit ​​member 21, which further improves the installation convenience and stability between the two.

[0042] See Figure 1 , Figure 3 and Figure 5 The crossbeam 3 is provided with an outwardly flared protruding insert 31 at one end, which cooperates with the insertion groove 111 on the strip door panel 11; the crossbeam 3 and the strip door panel 11 are effectively connected to each other through the action of the insertion groove 111 and the outwardly flared protruding insert 31.

[0043] See Figure 3 , Figure 4 , Figure 7 and Figure 9The connecting hinge assembly 42 includes a first hinge 421 installed in the middle of one side of the strip door panel 11 located in the insertion slot 111, and two second hinges 422 located on the side of the adjacent strip door panel 11 that are close to it. The two second hinges 422 are distributed on both sides of the first hinge 421. The corresponding first hinge 421 and second hinge 422 have bushings nested in their internal hinge holes and are rotatably mounted with pins 423. The first hinge 421 and second hinge 422 are installed at the joint position of the two strip door panels 11 and are hidden inside, which can effectively avoid corrosion and wear caused by the exposed environment. At the same time, the arrangement of the two second hinges 422 on both sides of the first hinge 421 can ensure that the two connected strip door panels 11 will not slide laterally, further ensuring the connection effect of the two strip door panels 11.

[0044] See Figure 1 , Figure 4 and Figure 5 The side-connecting hinge assembly 41 includes two symmetrically arranged U-shaped hinges 411 installed on the strip-shaped concave-convex structural surface of the strip-shaped door panel 11. A door panel plug 412 is placed inside the strip-shaped door panel 11 at the position corresponding to the U-shaped hinges 411. A self-tapping screw 413 is connected between the U-shaped hinges 411 and the door panel plug 412.

[0045] By inserting a door panel plug 412 into the hollowed-out position inside the strip door panel 11, the self-tapping screw 413 is fixed. The door panel plug 412 can support the hollowed-out strip door panel 11 and prevent the strip door panel 11 from deforming during the insertion of the self-tapping screw 413. On the other hand, it can fully fix the U-shaped hinge 411 and prevent the strip door panel 11 and the U-shaped hinge 411 from loosening and falling off due to being fixed by the self-tapping screw 413 alone.

[0046] The U-shaped hinge 411 includes a male hinge hole and a female hinge hole; except for the U-shaped hinge 411 connected to the crossbeam 3, the female hinge holes of the other U-shaped hinges 411 are provided with mounting grooves 414 that mate with the male hinge holes; the mounting grooves 414 facilitate the mutual positioning and docking of the male and female hinge holes between the two U-shaped hinges 411 on adjacent strip door panels 11.

[0047] The hinge holes of the U-shaped hinges 411 are all embedded with inner flower-shaped bushings 415. The male and female hinge holes of the U-shaped hinges 411 on the two adjacent strip door panels 11 are connected to a single bearing hinge shaft 416 after they are fitted together. The inner flower-shaped bushings 415 facilitate the docking of the male and female hinge holes of the two adjacent U-shaped hinges 411. At the same time, the single bearing hinge shaft 416 further ensures smooth rotation between the two U-shaped hinges 411.

[0048] See Figure 4 , Figure 5 , Figure 7 and Figure 8 A self-lubricating hinge wheel 5 is also fixedly installed on the single bearing hinge shaft 416. The self-lubricating hinge wheel 5 includes a wheel body 51 and a rubber ring 52 sleeved on the outer circumference of the wheel body 51. A bearing is also installed inside the wheel body 51. A grease chamber 53 is provided inside the wheel body 51. The grease chamber 53 is filled with grease. The oil inlet of the grease chamber 53 is sealed by the rubber ring 52. The oil outlet of the grease chamber 53 corresponds to the ball bearing inside the bearing.

[0049] The grease chamber 53 is filled with grease. During the unwinding process of the garage door panel, the wheel 51 will rotate. During the rotation of the wheel 51, some of the grease inside will leak out along the oil outlet and be introduced into the bearing position, thereby lubricating the bearing and further improving the smoothness of the unwinding process of the garage door panel.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A garage door panel structure with a concealed hinge, comprising a door panel assembly, a bottom seal, a crossbeam, and a hinge assembly; characterized in that: The door panel assembly is composed of several strip door panels connected sequentially by a hinge assembly, the hinge assembly including a side connecting hinge group and a middle connecting hinge group; The strip door panel has a strip-shaped concave-convex structure on one end along the thickness direction and a flat structure on the other end, with a hollow structure inside; an insertion groove is provided at one end along the width direction, and a T-shaped groove is provided on the side of the flat structure of the strip door panel near the end, and a strip-shaped sealing strip is installed in the T-shaped groove; The connecting hinge group includes a first hinge installed in the middle of one side of the strip door panel located in the insertion slot, and two second hinges located on the corresponding sides of adjacent strip door panels. The two second hinges are distributed on both sides of the first hinge, and the corresponding first hinge and second hinge are rotatably connected by a pin. The side-connecting hinge assembly includes two U-shaped hinges installed on the strip-shaped concave-convex structure surface of the strip door panel. The U-shaped hinges are fixed by door panel plugs and self-tapping screws, and adjacent U-shaped hinges are connected by a single-bearing hinge shaft.

2. The garage door panel structure with a concealed hinge according to claim 1, characterized in that: A crossbeam is inserted and installed at the bottom of the door panel assembly, and a bottom seal is inserted and installed at the lower end of the crossbeam.

3. The garage door panel structure with a concealed hinge according to claim 1, characterized in that: The bottom seal is symmetrically provided with arrow-shaped snap-fit ​​parts at one end where it connects to the crossbeam, and the end of the crossbeam that contacts the bottom seal has an arc-shaped structure.

4. The garage door panel structure with a concealed hinge according to claim 1, characterized in that: One end of the crossbeam is provided with an outwardly flared protruding insert that mates with the insertion slot on the strip door panel.

5. A garage door panel structure with a concealed hinge according to claim 1, characterized in that: The U-shaped hinge includes a male hinge hole and a female hinge hole. Except for the U-shaped hinge connected to the crossbeam, the female hinge hole of the other U-shaped hinges is provided with a mounting groove that matches the male hinge hole.

6. A garage door panel structure with a concealed hinge according to claim 5, characterized in that: The hinge holes of the U-shaped hinges are all embedded with internal flower-shaped bushings. The male and female hinge holes of the U-shaped hinges on two adjacent strip door panels are connected to a single bearing hinge shaft after they are fitted together.

7. A garage door panel structure with a concealed hinge according to claim 1, characterized in that: A self-lubricating hinge wheel is fixedly installed on the single bearing hinge shaft.

8. A garage door panel structure with a concealed hinge according to claim 7, characterized in that: The self-lubricating hinge wheel includes a wheel body and a rubber ring fitted on the outer circumference of the wheel body, and a bearing is installed inside the wheel body.

9. A garage door panel structure with a concealed hinge according to claim 8, characterized in that: The wheel body has a grease chamber inside, which is filled with lubricating grease, and the oil inlet of the grease chamber is sealed by a rubber ring.

10. A garage door panel structure with a concealed hinge according to claim 9, characterized in that: The oil outlet of the grease chamber corresponds to the ball bearing inside the bearing.

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