A garage door panel structure with a hidden hinge

Abstract

The present application belongs to the technical field of building energy-saving garage door plate, in particular to a garage door plate structure with hidden hinges; comprising a door plate assembly, a bottom sealing element, a cross beam element and a hinge assembly; the present application enhances the structural strength of the strip-shaped door plate through the strip-shaped concave-convex structure on the end face of the strip-shaped door plate; the nested design of the plug-in groove is matched, a 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, the active sealing mechanism of "movement extrusion-lubrication compensation" is realized through the linkage of the rubber ring and the grease cavity when the strip-shaped door plate moves, and the use effect of the side connecting hinge group is further improved; in order to ensure the structural strength of the strip-shaped door plate, the door plate plug and the U-shaped hinge form a local strengthening node through self-tapping screws, and the pin shaft of the middle connecting hinge group constitutes an integrated connection system, the reliability of the hinge connection point is fully improved, and deformation is not easy to occur in the uncoiling process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building energy-saving garage door panels, and particularly relates to a garage door panel structure with a hidden hinge. BACKGROUND

[0002] As a part of the building envelope structure, the garage door panel directly controls the heat exchange between the building and the outside world through the characteristics of thermal insulation performance, material structure, radiation treatment, and thus affects the energy consumption of heating and refrigeration equipment. Under the background of the increasing importance of building energy saving, selecting an energy-saving garage door that meets the standards not only reduces operating costs, but also is a key link to achieve the overall energy-saving goal of the building.

[0003] At present, in the design and manufacturing process of the garage door panel, the structure of the door panel and the hinge directly affects the durability, aesthetics and performance of the product. The traditional garage door usually uses an exposed hinge to connect the door panel to achieve the folding or flipping movement of the door body. However, this design has the following technical defects: the mechanical structure of the exposed hinge is obvious, affecting the overall appearance of the door panel, and it is difficult to meet the needs of modern architecture for simple and concealed design; at the same time, the hinge is exposed to the outside, and is easily eroded by rain, dust, ultraviolet rays, etc. for a long time, which can cause lubrication failure, rust or jam, and shorten the service life.

[0004] In order to solve the above problems, some manufacturers try to use semi-hidden hinges or improve the hinge material (such as stainless steel and engineering plastic), but there are still the following limitations: first, the hidden depth is insufficient, and some hinges are partially embedded in the door panel, but the joint can still be seen, affecting the appearance; second, the closed environment of the hidden hinge can cause the evaporation of lubricant or the accumulation of dust, accelerating wear and tear; in addition, the connection between the hidden hinge and the door panel is prone to looseness and falling off during long-term use, resulting in insufficient connection strength.

[0005] Therefore, there is an urgent need for a truly hidden, high-reliability and low-maintenance cost garage door hinge structure to solve the deficiencies of the prior art. Therefore, the present application provides a "garage door panel structure with a hidden hinge". SUMMARY

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

[0007] In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions: a garage door panel structure with a hidden hinge, comprising a door panel assembly, a bottom sealing element, a cross beam element and a hinge assembly.

[0008] The door plate assembly is composed of a plurality of strip-shaped door plates connected in sequence by hinge assemblies, and the hinge assemblies include side connection hinge groups and middle connection hinge groups.

[0009] One end face of the strip-shaped door plate in the thickness direction is a strip-shaped concave-convex structure, the other end face is a flat structure, and the inside is a hollow structure; one end in the width direction is provided with a plug-in slot, and the side close to the flat structure of the strip-shaped door plate is provided with a T-shaped slot, and a strip-shaped sealing strip is installed in the T-shaped slot.

[0010] The middle connection hinge group includes a No. 1 hinge installed at the middle part of the side of the strip-shaped door plate on the side of the plug-in slot, and two No. 2 hinges located at the corresponding sides of the adjacent strip-shaped door plates, and the two No. 2 hinges are distributed on the two sides of the No. 1 hinge, and the corresponding No. 1 hinge and No. 2 hinge are connected by a pin shaft.

[0011] The side connection hinge group includes two U-shaped hinges installed on the strip-shaped concave-convex surface of the strip-shaped door plate, and the U-shaped hinges are fixed by a door plate plug block and a self-tapping screw, and the adjacent U-shaped hinges are connected by a single bearing hinge shaft.

[0012] According to an advantageous embodiment, a crossbeam part is plug-in installed at the bottom of the door plate assembly, and a bottom sealing part is plug-in installed at the lower end of the crossbeam part.

[0013] According to an advantageous embodiment, the end of the bottom sealing part connected with the crossbeam part is symmetrically provided with a clamping part with an arrow-shaped cross section, and the end of the crossbeam part in contact with the bottom sealing part is in an arc structure.

[0014] According to an advantageous embodiment, the end of the crossbeam part is provided with an outwardly expanded protruding plug block matched with the plug-in slot on the strip-shaped door plate.

[0015] According to an advantageous embodiment, the U-shaped hinge includes a child end hinge hole and a mother end hinge hole, and the mother end hinge hole of the remaining U-shaped hinges except the U-shaped hinge connected with the crossbeam part is provided with an installation slot matched with the child end hinge hole.

[0016] According to an advantageous embodiment, an inner flower-shaped shaft sleeve is fixedly embedded in the hinge hole of the U-shaped hinge, and the child end hinge hole and the mother end hinge hole of the U-shaped hinges on the adjacent two strip-shaped door plates are embedded in each other and are jointly connected with a single bearing hinge shaft.

[0017] According to an advantageous embodiment, a self-lubricating hinge wheel is fixedly installed 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 sleeved on the outer circumferential surface of the wheel body, and a bearing is installed in the wheel body.

[0019] According to an advantageous embodiment, a grease cavity is arranged in the wheel body, the grease cavity is filled with lubricating grease, and the oil inlet hole of the grease cavity is sealed by the rubber ring.

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

[0021] Compared with the prior art, the garage door plate structure with a hidden hinge provided by the embodiment of the application has the following beneficial effects: 1. The strip-shaped door plate has enhanced structural strength through the strip-shaped concave-convex structure on the end face of the strip-shaped door plate; the nested design of the plug-in slot is matched, and a strip-shaped sealing strip is arranged in the T-shaped slot to form a multi-stage sealing barrier (mechanical embedded sealing + elastic sealing strip), so that the hinge assembly is completely hidden inside the strip-shaped door plate, and when the strip-shaped door plate moves, the active sealing mechanism of "movement extrusion-lubrication compensation" is realized through the linkage of the rubber ring and the oil cavity, and the use effect of the side connecting hinge group is further improved.

[0022] 2. The inner flower-shaped shaft sleeve and the self-lubricating hinge wheel constitute a lubrication and load bearing combined unit, and the oil outlet hole of the oil cavity is matched with the bearing ball, so that the lubrication efficiency and mechanical load bearing strength are greatly improved.

[0023] 3. The door plate plug block and the U-shaped hinge in the application form a local strengthening node through a self-tapping screw, and constitute an integrated connection system with the pin shaft of the middle connecting hinge group, so that the hinge connection point reliability is fully improved, and the local strengthening nodes are further dispersed to enhance the structural strength of the strip-shaped door plate, so that the strip-shaped door plate is not easy to deform during uncoiling. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front perspective structural diagram of the garage door plate of the application.

[0025] Figure 2 It is a front perspective structural diagram of the garage door plate of the application. Figure 1

[0026] Figure 3 It is a front perspective structural diagram of the garage door plate of the application.

[0027] Figure 4 It is a front perspective structural diagram of the garage door plate of the application. Figure 3

[0028] Figure 5 It is a front perspective structural diagram of the garage door plate of the application. Figure 4

[0029] It is a front perspective structural diagram of the garage door plate of the application. Figure 6

[0030] It is a front perspective structural diagram of the garage door plate of the application. Figure 7 It is a front perspective structural diagram of the garage door plate of the application.​​

[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 center 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. A self-lubricating hinge wheel is fixedly installed on the single bearing hinge shaft; The self-lubricating hinge wheel includes a wheel body and a rubber ring sleeved on the outer circumference of the wheel body, and a bearing is installed inside the wheel body; 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. The oil outlet of the grease chamber corresponds to the ball bearing inside the bearing.

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.

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