A hinge structure for heavy-duty aluminum frame glass door

Abstract

The present invention discloses a hinge structure for a heavy-duty aluminum-framed glass door, comprising a hinge cup assembly, a hinge arm assembly, and a crankshaft assembly arranged between the hinge cup assembly and the hinge arm assembly, wherein the crankshaft assembly comprises at least a first crankshaft, a second crankshaft, and a slider, wherein the first crankshaft and the second crankshaft are spaced apart and one end thereof is hinged to the hinge cup assembly, and the other end is hinged to the hinge arm assembly; the first crankshaft and the second crankshaft are both transmission-hinged to one end of the slider; and further comprising two buffers spaced apart, the telescopic parts of the two buffers abutting against the other end of the slider. Thus, when the hinge cup assembly rotates and closes relative to the hinge arm assembly, the slider can be driven forward by the first crankshaft and the second crankshaft, thereby compressing the telescopic parts of the buffer to achieve buffered closing. In addition, the arrangement of the two crankshafts and the two buffers can effectively improve the overall stability of the hinge structure, avoid the displacement of components within the hinge structure and cause wear, thereby improving the overall life of the hinge.

Description

Technical Field

[0001] The invention relates to the field of hardware accessories, in particular to a hinge structure for a heavy-duty aluminum-frame glass door. Background Art

[0002] Existing hinge structures for heavy-duty aluminum frame doors, such as the heavy-duty buffer hinge disclosed in Patent No. 2020212648622, include a hinge cup, a rocker, a hinge arm, a base, a crankshaft, an elastic member and a damper. When the hinge cup rotates open relative to the hinge arm, the crankshaft rotates and drives the crankshaft swinging part at its rear end to swing, thereby pushing the sliding member to move toward the rear end of the hinge arm, thereby compressing the elastic member; when the door needs to be closed, the elastic member is compressed and automatically resets, thereby pushing the sliding member to move toward the front end of the hinge arm, and at the same time pushing the crankshaft swinging part to swing, thereby driving the crankshaft and the rocker to rotate so that the hinge cup rotates and closes relative to the hinge arm, and at the same time, the rocker swinging part of the rocker can compress the damper to achieve buffered closing.

[0003] In the above-mentioned heavy-duty buffer hinge, since only a single crankshaft, a single elastic member and a single damper are provided, when it is used to bear the weight of a heavy-duty aluminum-framed glass door, the weight of the heavy-duty aluminum-framed glass door can easily destroy the overall balance of the hinge structure, thereby causing the components within the hinge structure to offset and wear, thereby reducing the overall life of the hinge structure. For this reason, some businesses install four or more hinges to meet the load-bearing requirements, but the method of installing multiple hinges will make the installation and debugging process very troublesome. In addition, a small number of businesses use top and bottom hinges or needle hinges with higher load-bearing capacity, but the production cost of these two types of hinges is high and the installation is extremely inconvenient. Summary of the Invention

[0004] In order to overcome the defects of the prior art described above, the present invention provides a hinge structure for a heavy-duty aluminum frame glass door, which has strong overall structural stability, high load-bearing capacity and long service life.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A hinge structure for a heavy-duty aluminum-framed glass door comprises a hinge cup assembly for mounting on the heavy-duty aluminum-framed glass door, a hinge arm assembly for mounting on a cabinet, and a crankshaft assembly disposed between the hinge cup assembly and the hinge arm assembly, wherein:

[0007] The crankshaft assembly comprises at least a first crankshaft, a second crankshaft and a slider. The first crankshaft and the second crankshaft are spaced apart and one end of each is hinged to the hinge cup assembly, and the other end of each is hinged to the hinge arm assembly. The first crankshaft and the second crankshaft are both drivingly hinged to one end of the slider.

[0008] Also included is a buffer assembly disposed in the hinge arm assembly, the buffer assembly including two buffers spaced apart, the telescopic members of the two buffers both abutting against the other end of the slider;

[0009] When the hinge cup assembly rotates and closes relative to the hinge arm assembly, the slider can be driven to move by the first crankshaft and the second crankshaft, thereby compressing the telescopic part of the buffer to achieve buffer closure.

[0010] The hinge structure of the present invention can drive the slider to move through the first crankshaft and the second crankshaft when the hinge cup assembly rotates and closes relative to the hinge arm assembly, thereby compressing the telescopic part of the buffer to achieve buffered closing; secondly, when the hinge structure is used to bear the weight of a heavy-duty aluminum-framed glass door, the arrangement of the first crankshaft, the second crankshaft and the two buffers can effectively improve the overall stability of the hinge structure, avoid the displacement of components within the hinge structure and cause wear, thereby increasing the overall life of the hinge, and also improving the bearing capacity of the hinge structure.

[0011] Furthermore, the crankshaft assembly further includes a drive rod, which is located between the first crankshaft and the second crankshaft, one end of which is hinged to the first crankshaft and the second crankshaft, and the other end of which is hinged to the slider;

[0012] When the hinge cup assembly rotates and closes relative to the hinge arm assembly, the first crankshaft and the second crankshaft can drive the driving rod to move forward, thereby driving the sliding block to move.

[0013] Furthermore, it also includes an elastic component, the elastic component includes two elastic members spaced apart, the two elastic members are both sleeved on the slider and one end of the two elastic members abuts against the slider, and the other end abuts against the hinge arm component;

[0014] When the hinge cup assembly rotates and opens relative to the hinge arm assembly, the first crankshaft and the second crankshaft can drive the slider to move and compress the two elastic members;

[0015] When the hinge cup assembly rotates and closes relative to the hinge arm assembly, the elastic member releases its elastic force, and the first crankshaft, the second crankshaft and the two elastic members all drive the slider to reset to compress the telescopic member of the buffer.

[0016] Therefore, the elastic component can provide a closing force to the rubber cup component, making it easier to close the heavy aluminum frame door.

[0017] Furthermore, the hinge cup assembly includes a hinge cup seat for installation on a heavy aluminum frame glass door and a hinge cup adjustably installed on the hinge cup seat, and one end of the first crankshaft and the second crankshaft are both hinged to the hinge cup seat.

[0018] Furthermore, the hinge assembly further includes a first adjustment mechanism, the first adjustment mechanism including a first eccentric nail, a first limiting groove provided on the hinge cup, and a first mounting hole provided on the hinge cup seat; the first eccentric nail passes through the first limiting groove and is connected and fixed to the first mounting hole;

[0019] When the first eccentric nail is adjusted, the hinge cup can be driven to slide up and down relative to the hinge cup seat to achieve height adjustment of the heavy aluminum frame glass door.

[0020] Furthermore, the hinge arm assembly includes a fixing seat for mounting on the cabinet body and a main body arm adjustably mounted on the fixing seat, and the other ends of the first crankshaft and the second crankshaft are both hinged to the main body arm;

[0021] The fixing seat is further provided with a boss which is embedded in the cabinet.

[0022] Therefore, by arranging the boss on the fixing seat and embedding the boss in the cabinet body, the overall load-bearing capacity of the hinge structure is greatly increased.

[0023] Furthermore, it also includes a connecting rod, one end of which is hinged to the hinge cup, and the other end of which is hinged to the main body arm;

[0024] An accommodating cavity for accommodating the first crankshaft or the second crankshaft is defined in the connecting rod.

[0025] Furthermore, one end of the first crankshaft is provided with a first hinge hole for being hinged to the hinge cup, and the other end is provided with a second hinge hole for being hinged to the main body arm; one end of the second crankshaft is provided with a third hinge hole for being hinged to the hinge cup, and the other end is provided with a fourth hinge hole for being hinged to the main body arm; one end of the connecting rod is provided with a fifth hinge hole for being hinged to the hinge cup, and the other end is provided with a sixth hinge hole for being hinged to the main body arm, wherein:

[0026] The hinge further comprises a shaft sleeve respectively provided in the first hinge hole, the second hinge hole, the third hinge hole, the fourth hinge hole, the fifth hinge hole and the sixth hinge hole, wherein the shaft sleeve is provided with an anti-rotation convex bump, and the first hinge hole, the second hinge hole, the third hinge hole, the fourth hinge hole, the fifth hinge hole and the sixth hinge hole are each provided with an anti-rotation groove engaged with the anti-rotation convex bump;

[0027] The shaft sleeve is provided with a shaft hole.

[0028] Therefore, when the hinge shaft passes through the first crankshaft, the second crankshaft and the connecting rod, it does not directly contact the hinge hole, but is rollingly connected to the sleeve set in the hinge hole, thereby effectively reducing friction and allowing it to rotate smoothly during operation, thereby effectively improving the overall life of the hinge.

[0029] Furthermore, the invention further comprises a second adjustment mechanism, the second adjustment mechanism comprising an adjustment screw, a threaded hole provided on the main arm and threadedly matched with the adjustment screw, a second limiting groove provided on the fixing seat, and a first meson; the adjustment screw sequentially passes through the threaded hole and the second limiting groove and is fixedly connected to the first meson;

[0030] When the adjusting screw is adjusted, the main body arm can be driven to slide forward and backward relative to the fixing seat to achieve the covering position adjustment of the heavy aluminum frame glass door.

[0031] Furthermore, it also includes a third adjustment mechanism, which includes a second eccentric nail, an adjustment hole provided on the main arm, a third limiting groove provided on the fixing seat, and a second meson; the second eccentric nail passes through the adjustment hole and the third limiting groove in sequence and is fixedly connected to the second meson;

[0032] When the second eccentric nail is adjusted, the main body arm can be driven to move left and right relative to the fixing seat so as to adjust the size of the door gap between the heavy aluminum frame glass door and the cabinet body.

[0033] In summary, the hinge structure for a heavy-duty aluminum-framed glass door of the present invention has the following beneficial effects:

[0034] (1) The hinge structure of the present invention can drive the slider to move by the first crankshaft and the second crankshaft when the hinge cup assembly rotates and closes relative to the hinge arm assembly, thereby compressing the telescopic part of the buffer to achieve buffered closing; secondly, when the hinge structure is used to bear the weight of a heavy aluminum-framed glass door, the arrangement of the first crankshaft, the second crankshaft, the two elastic parts and the two buffers can effectively improve the overall stability of the hinge structure, avoid the displacement of the components in the hinge structure and cause wear, thereby improving the overall life of the hinge and also improving the bearing capacity of the hinge structure.

[0035] (2) The hinge structure of the present invention greatly increases the overall load-bearing capacity of the hinge structure by arranging a boss on the fixing seat and embedding the boss in the cabinet body.

[0036] (3) In the hinge structure of the present invention, when the hinge shaft passes through the first crankshaft, the second crankshaft and the connecting rod, it does not directly contact the hinge hole thereof, but is rollingly connected with the shaft sleeve arranged in the hinge hole, thereby effectively reducing the friction force and making it rotate smoothly during operation, thereby effectively improving the overall life of the hinge.

[0037] (4) The hinge structure of the present invention can realize three-dimensional six-direction adjustment of the heavy aluminum frame glass door by adjusting the first eccentric nail on the hinge cup and the second eccentric nail and the adjusting screw on the main arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the hinge structure of the present invention;

[0039] Figure 2 Schematic diagram of the explosion of the hinge structure of the present invention;

[0040] Figure 3 Schematic diagram of the structure of the hinge cup seat in the hinge structure of the present invention;

[0041] Figure 4 Schematic diagram of the structure of the hinge cup in the hinge structure of the present invention;

[0042] Figure 5 Schematic diagram of the structure of the main arm in the hinge structure of the present invention;

[0043] Figure 6 for Figure 5 Structural diagram from another perspective;

[0044] Figure 7 Schematic diagram of the structure of the slider in the hinge structure of the present invention;

[0045] Figure 8 for Figure 7 Structural diagram from another perspective;

[0046] Figure 9 Schematic diagram of the sleeve structure in the hinge structure of the present invention;

[0047] Figure 10 Schematic diagram of the structure of the first crankshaft in the hinge structure of the present invention;

[0048] Figure 11 Schematic diagram of the structure of the second crankshaft in the hinge structure of the present invention;

[0049] Figure 12 Schematic diagram of the structure of the driving rod in the hinge structure of the present invention;

[0050] Figure 13 Schematic diagram of the structure of the connecting rod in the hinge structure of the present invention;

[0051] Figure 14 It is a structural schematic diagram of the fixing seat in the hinge structure of the present invention;

[0052] Figure 15 for Figure 14 Structural diagram from another perspective;

[0053] Figure 16 This is a schematic diagram of the structure of the hinge structure of the present invention after the connecting rod and the main arm are hidden;

[0054] Figure 17 This is a schematic diagram of the structure of the hinge structure of the present invention after the hinge cup seat and the fixing seat are hidden;

[0055] Figure 18 is a cross-sectional schematic diagram of the hinge structure of the present invention in an open state;

[0056] Figure 19 is a cross-sectional schematic diagram of the hinge structure of the present invention in a closed state;

[0057] Figure 20 Schematic diagram of the assembly of the hinge structure of the present invention.

[0058] The meanings of the reference numerals are as follows:

[0059] 1. Hinge cup seat; 101. Second mounting hole; 102. Guide groove; 103. Slotted hole; 104. First mounting hole; 2. Hinge cup; 201. Seventh hinge hole; 202. Screw hole; 203. First limiting groove; 204. Eighth hinge hole; 205. Guide block; 3. Connecting rod; 301. Fifth hinge hole; 302. Sixth hinge hole; 303. Accommodating cavity; 4. First crankshaft; 401. First hinge hole; 402. Second hinge hole ; 403, 12th hinge hole; 5, driving rod; 501, 14th hinge hole; 502, 15th hinge hole; 6, second crankshaft; 601, 3rd hinge hole; 602, 4th hinge hole; 603, 13th hinge hole; 7, main arm; 701, gear position; 702, first protrusion; 703, fixed position; 704, inner cavity; 705, 9th hinge hole; 706, 10th hinge hole; 707, first axis hole; 708, Threaded hole; 709, adjustment hole; 8, fixing seat; 801, second limiting groove; 802, third limiting groove; 803, bend; 804, third mounting hole; 805, boss; 9, elastic member; 10, slider; 1001, eleventh hinge hole; 1002, second protrusion; 1003, guide rod; 1004, limiting hole; 1005, guide groove; 11, buffer; 12, machine screw; 13, first eccentric nail; 141, First hinge axis; 142, second hinge axis; 143, third hinge axis; 144, fourth hinge axis; 145, fifth hinge axis; 146, rotating axis; 147, seventh hinge axis; 15, adjusting screw; 16, second eccentric nail; 17, bushing; 1701, anti-rotation convex bump; 1702, second axis hole; 1703, anti-rotation groove; 18, first meson; 19, second meson; 20, heavy-duty aluminum-framed glass door; 21, cabinet body. DETAILED DESCRIPTION

[0060] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0061] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0063] See Figure 1-20 The present invention provides a hinge structure for a heavy-duty aluminum-framed glass door, comprising a hinge cup assembly for installation on a heavy-duty aluminum-framed glass door 20, a hinge arm assembly for installation on a cabinet body 21, and a crankshaft assembly arranged between the hinge cup assembly and the hinge arm assembly. Specifically, the hinge cup assembly comprises a hinge cup seat 1 for installation on the heavy-duty aluminum-framed glass door 20 and a hinge cup 2 that can be adjustably installed on the hinge cup seat 1; the hinge arm assembly comprises a fixing seat 8 for installation on the cabinet body 21 and a main arm 7 that can be adjustably installed on the fixing seat 8; the crankshaft assembly comprises a first crankshaft 4, a second crankshaft 6, a drive rod 5, and a slider 10, wherein the first crankshaft 4 and the second crankshaft 6 are arranged at intervals and one end of both is hinged to the hinge cup 2, and the other end of both is hinged to the main arm 7; the drive rod 5 is located between the first crankshaft 4 and the second crankshaft 6 and one end of the drive rod 5 is hinged to the first crankshaft 4 and the second crankshaft 6, and the other end is hinged to one end of the slider 10. In addition, it also includes a buffer component and an elastic component arranged in the main arm 7. The buffer component includes two buffers 11 arranged at intervals. The buffer 11 includes a buffer body and a telescopic part. The telescopic parts of the two buffers 11 are both in contact with the other end of the slider 10; the elastic component includes two elastic parts 9 arranged at intervals. The two elastic parts 9 are both mounted on the slider 10 and one end is in contact with the slider 10, and the other end is in contact with the main arm 7.

[0064] In this embodiment, the buffer 11 is a hydraulic cylinder, the telescopic member is a piston rod provided on the hydraulic cylinder; and the elastic member 9 is a spring.

[0065] Specifically, a first hinge hole 401 is provided at one end of the first crankshaft 4, a third hinge hole 601 is provided at one end of the second crankshaft 6, a seventh hinge hole 201 is provided on the hinge cup 2, and the third hinge shaft 143 is used to pass through the seventh hinge hole 201, the first hinge hole 401 and the third hinge hole 601, so that one end of the first crankshaft 4 and the second crankshaft 6 can be hinged to the hinge cup 2; a second hinge hole 402 is provided at the other end of the first crankshaft 4, a fourth hinge hole 602 is provided at the other end of the second crankshaft 6, and a tenth hinge hole 706 is provided on the main arm 7, and the fourth hinge shaft 144 is used to pass through the tenth hinge hole 706, the second hinge hole 402 and the fourth hinge hole 602, so that the first crankshaft 4 and the second crankshaft 6 can be hinged to the hinge cup 2. The other end of the drive rod 5 is hinged to the main arm 7; in addition, a twelfth hinge hole 403 is provided on the first crankshaft 4, a thirteenth hinge hole 603 is provided on the second crankshaft 6, and a fourteenth hinge hole 501 is provided at one end of the drive rod 5. The seventh hinge shaft 147 is passed through the thirteenth hinge hole 603, the fourteenth hinge hole 501 and the twelfth hinge hole 403, so that one end of the drive rod 5 can be hinged to the first crankshaft 4 and the second crankshaft 6; the other end of the drive rod 5 is also provided with a fifteenth hinge hole 502, and an eleventh hinge hole 1001 is provided on the slider 10. The fifth hinge shaft 145 is passed through the eleventh hinge hole 1001 and the fifteenth hinge hole 502, so that the other end of the drive rod 5 can be hinged to the slider 10. In addition, two limiting holes 1004 are opened at one end of the slider 10, and the telescopic parts of the two buffers 11 are respectively abutted on the two limiting holes 1004; guide rods 1003 are also protruding on both sides of the slider 10, and the elastic part 9 is sleeved on the guide rod 1003 and abuts against the slider 10 at one end, and abuts against the main arm 7 at the other end.

[0066] Therefore, when the hinge cup assembly rotates open relative to the hinge arm assembly, Figure 18 , the first crankshaft 4 and the second crankshaft 6 can drive the driving rod 5 to move to the left, thereby driving the slider 10 to move to the left and compressing the elastic member 9; when the hinge cup assembly rotates and closes relative to the hinge arm assembly, refer to Figure 19 Therefore, the driving rod 5 can be driven to move to the right by the first crankshaft 4 and the second crankshaft 6, and the elastic member 9 releases the elastic force synchronously. The elastic member 9 and the driving rod 5 jointly drive the slider 10 to move to the right and compress the telescopic member of the buffer 11 to achieve buffer closure.

[0067] When used to support a heavy-duty aluminum-framed glass door 20, the hinge structure of the present invention, including its first crankshaft 4, second crankshaft 6, two elastic members 9, and two buffers 11, effectively improves the overall stability of the hinge structure, preventing wear and tear caused by displacement of components within the hinge structure. This increases the overall lifespan of the hinge and also enhances the load-bearing capacity of the hinge structure. Furthermore, the elastic component provides closing force to the rubber cup assembly, making closing the heavy-duty aluminum-framed glass door 20 even simpler and easier.

[0068] In addition, the hinge structure further includes a connecting rod 3, one end of which is hinged to the hinge cup 2 and the other end is hinged to the main arm 7. A receiving cavity 303 is also defined in the connecting rod 3, and the first crankshaft 4 is located within the receiving cavity 303. Specifically, a fifth hinge hole 301 is defined at one end of the connecting rod 3, and an eighth hinge hole 204 is defined on the hinge cup 2. The first hinge shaft 141 is passed through the eighth hinge hole 204 and the fifth hinge hole 301 to hinge one end of the connecting rod 3 to the hinge cup 2. The other end of the connecting rod 3 is further defined by a sixth hinge hole 302, and a ninth hinge hole 705 is defined on the main arm 7. The second hinge shaft 142 is passed through the ninth hinge hole 705 and the sixth hinge hole 302 to hinge the other end of the connecting rod 3 to the main arm 7.

[0069] See Figure 9-11 as well as Figure 13 , further comprising a shaft sleeve 17 disposed within the first hinge hole 401, the second hinge hole 402, the third hinge hole 601, the fourth hinge hole 602, the fifth hinge hole 301, and the sixth hinge hole 302, respectively. The shaft sleeve 17 is provided with an anti-rotation bump 1701. Each of the first hinge hole 401, the second hinge hole 402, the third hinge hole 601, the fourth hinge hole 602, the fifth hinge hole 301, and the sixth hinge hole 302 is provided with an anti-rotation groove 1703 that engages with the anti-rotation bump 1701, so that after the shaft sleeve 17 is assembled, it and the hinge hole do not rotate relative to each other. Furthermore, the shaft sleeve 17 is provided with a second axial hole 1702 for the hinge shaft to pass through.

[0070] Therefore, when the hinge shaft passes through the first crankshaft 4, the second crankshaft 6 and the connecting rod 3, it does not directly contact the hinge hole, but is rollingly connected with the sleeve 17 arranged in the hinge hole, thereby effectively reducing friction and allowing it to rotate smoothly during operation, thereby improving the service life of the hinge structure.

[0071] See also Figure 2-3The hinge cup base 1 also has second mounting holes 101 on both sides for securing it to a heavy-duty aluminum-framed glass door 20. Furthermore, the hinge cup base 1 also has square guide grooves 102 on both sides, and guide blocks 205 protrude from both sides of the hinge cup 2 to engage with the guide grooves 102. The hinge cup base 1 also has slots 103 and screw holes 202. Therefore, when the hinge cup 2 needs to be mounted on the hinge cup base 1, the guide blocks 205 on the hinge cup 2 can be slid into the guide grooves 102 on the hinge cup base 1. Then, a machine screw 12 is passed from bottom to top through the slots 103 and connected to the screw holes 202 to secure the hinge cup 2.

[0072] In addition, the hinge structure also includes a first adjustment mechanism, which includes a first eccentric pin 13, a first limiting groove 203 provided on the hinge cup 2, and a first mounting hole 104 provided on the hinge cup base 1. The first eccentric pin 13 passes through the first limiting groove 203 and is fixedly connected to the first mounting hole 104. Specifically, the main shaft of the first eccentric pin 13 is engaged with the first limiting groove 203, and the eccentric shaft of the first eccentric pin 13 is inserted into the first mounting hole 104. Therefore, when the first eccentric pin 13 is adjusted, the main shaft of the first eccentric pin 13 can abut against the first limiting groove 203, thereby driving the hinge cup 2 to slide up and down relative to the hinge cup base 1 to achieve height adjustment of the heavy-duty aluminum-framed glass door 20.

[0073] See also Figure 5-7 The interior of the main arm 7 is also provided with a concave cavity with a bottom opening, and the two sides of the concave cavity are provided with an inner cavity 704 for placing the buffer body and a fixing position 703 for clamping the telescopic part of the buffer 11. The fixing position 703 is a vertically arranged first clamping block and has a clamping hole for the telescopic part to pass through; the concave cavity is also provided with a gear position 701 for abutting against one end of the elastic member 9, and the gear position 701 is a vertically arranged second clamping block; in addition, a first protrusion 702 is also provided in the concave cavity, and a guide groove 1005 is provided on the slider 10 for the first protrusion 702 to be inserted, so as to guide the sliding trajectory of the slider 10; in addition, second protrusions 1002 are also provided on both sides of the slider 10, and the second protrusions 1002 can abut against the two side walls of the concave cavity to achieve limiting. Furthermore, the two side walls of the cavity are further provided with a first shaft hole 707 and a rotating shaft 146 passing through the two first shaft holes 707 . The rotating shaft 146 is located at the bottom of the slider 10 so as to limit and fix the slider 10 when it moves up and down.

[0074] See Figure 14-15The center of the fixing base 8 is recessed to form a boss 805, which is embedded in the cabinet 21. Third mounting holes 804 are provided on both sides of the fixing base 8 for securing to the cabinet 21. Bolts are passed through the third mounting holes 804 and connected to the cabinet 21 to attach the fixing base 8 to the cabinet. The fixing base 8 also has a bend 803, which serves as a third vertically positioned latch and is designed to contact the bottom of the buffer 11, thereby limiting the vertical movement of the buffer 11.

[0075] Therefore, by providing the boss 805 on the fixing seat 8 and embedding the boss 805 in the cabinet body 21, the overall load-bearing capacity of the hinge structure is greatly increased.

[0076] The hinge structure also includes a second adjustment mechanism and a third adjustment mechanism. The second adjustment mechanism comprises an adjustment screw 15, a threaded hole 708 on the main arm 7 that threadably engages with the adjustment screw 15, a second retaining slot 801 on the fixing base 8, and a first retaining member 18. The adjustment screw 15 passes through the threaded hole 708 and the second retaining slot 801, respectively, and is fixedly connected to the first retaining member 18. Specifically, a boss is provided at the bottom of the adjustment screw 15, which passes through the second retaining slot 801 and connects to the first retaining member 18. Thus, when the adjustment screw 15 is adjusted, the threaded hole 708 on the main arm 7 drives the main arm 7 to slide back and forth relative to the fixing base 8, thereby adjusting the closing position of the heavy-duty aluminum-framed glass door 20. The third adjustment mechanism includes a second eccentric nail 16, an adjustment hole 709 provided on the main arm 7, a third limiting groove 802 provided on the fixing seat 8, and a second meson 19; the second eccentric nail 16 passes through the adjustment hole 709 and the third limiting groove 802 in sequence and is fixedly connected to the second meson 19; specifically, the main shaft of the second eccentric nail 16 is engaged with the adjustment hole 709, and the eccentric shaft of the second eccentric nail 16 passes through the third limiting groove 802 and is fixed to the second meson 19; thus, when the second eccentric nail 16 is adjusted, the second eccentric nail 16 will abut against the adjustment hole 709 and thus can drive the main arm 7 to move left and right relative to the fixing seat 8 to achieve adjustment of the door gap size between the heavy aluminum frame glass door 20 and the cabinet body 21.

[0077] In summary, the hinge structure for a heavy-duty aluminum-framed glass door of the present invention has the following beneficial effects:

[0078] (1) The hinge structure of the present invention can drive the slider 10 to move by the first crankshaft 4 and the second crankshaft 6 when the hinge cup assembly rotates and closes relative to the hinge arm assembly, thereby compressing the telescopic part of the buffer 11 to achieve buffered closing; secondly, when the hinge structure is used to bear the weight of a heavy-duty aluminum-framed glass door 20, the arrangement of the first crankshaft 4, the second crankshaft 6, the two elastic members 9 and the two buffers 11 can effectively balance the overall stability of the hinge structure, avoid the displacement of components in the hinge structure and cause wear, thereby improving the overall life of the hinge and also improving the bearing capacity of the hinge structure.

[0079] (2) The hinge structure of the present invention greatly increases the overall load-bearing capacity of the hinge structure by providing a boss 805 on the fixing seat 8 and embedding the boss 805 in the cabinet body 21 .

[0080] (3) In the hinge structure of the present invention, when the hinge shaft passes through the first crankshaft 4, the second crankshaft 6 and the connecting rod 3, it does not directly contact the hinge hole, but is rollingly connected with the shaft sleeve 17 set in the hinge hole, thereby effectively reducing friction and making it rotate smoothly during operation, thereby effectively improving the overall life of the hinge.

[0081] (IV) The hinge structure of the present invention can achieve three-dimensional six-position adjustment of the heavy aluminum frame glass door 20 by adjusting the first eccentric nail 13 on the hinge cup 2 and the second eccentric nail 16 and the adjusting screw 15 on the main arm 7.

[0082] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0083] It should be understood that the terms "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0084] In addition, in the description of the present invention, “a plurality of” and “a plurality of” mean two or more, unless otherwise clearly and specifically defined.

[0085] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A hinge structure for a heavy-duty aluminum frame glass door, characterized in that: The invention comprises a hinge cup assembly for installation on a heavy aluminum frame glass door, a hinge arm assembly for installation on a cabinet body, and a crankshaft assembly arranged between the hinge cup assembly and the hinge arm assembly, wherein: The crankshaft assembly comprises at least a first crankshaft, a second crankshaft and a slider. The first crankshaft and the second crankshaft are spaced apart and one end of each is hinged to the hinge cup assembly, and the other end of each is hinged to the hinge arm assembly. The first crankshaft and the second crankshaft are both drivingly hinged to one end of the slider. Also included is a buffer assembly disposed in the hinge arm assembly, the buffer assembly including two buffers spaced apart, the telescopic members of the two buffers both abutting against the other end of the slider; When the hinge cup assembly rotates and closes relative to the hinge arm assembly, the slider can be driven to move by the first crankshaft and the second crankshaft, thereby compressing the telescopic part of the buffer to achieve buffer closure; The hinge cup assembly includes a hinge cup seat for installation on a heavy aluminum frame glass door and a hinge cup adjustably installed on the hinge cup seat, and one end of the first crankshaft and the second crankshaft are both hinged on the hinge cup seat; The hinge arm assembly includes a fixing base for mounting on the cabinet body and a main body arm adjustably mounted on the fixing base, and the other ends of the first crankshaft and the second crankshaft are hinged to the main body arm; The fixing seat is further provided with a boss which is embedded in the cabinet.

2. The hinge structure according to claim 1, characterized in that: The crankshaft assembly further includes a drive rod, which is located between the first crankshaft and the second crankshaft, one end of which is hinged to the first crankshaft and the second crankshaft, and the other end of which is hinged to the slider; When the hinge cup assembly rotates and closes relative to the hinge arm assembly, the first crankshaft and the second crankshaft can drive the driving rod to move forward, thereby driving the sliding block to move.

3. The hinge structure according to claim 1, characterized in that: It also includes an elastic component, the elastic component includes two elastic members spaced apart, the two elastic members are sleeved on the slider and one end of the two elastic members abuts against the slider and the other end abuts against the hinge arm component; When the hinge cup assembly rotates and opens relative to the hinge arm assembly, the first crankshaft and the second crankshaft can drive the slider to move and compress the two elastic members; When the hinge cup assembly rotates and closes relative to the hinge arm assembly, the elastic member releases its elastic force, and the first crankshaft, the second crankshaft and the two elastic members all drive the slider to reset to compress the telescopic member of the buffer.

4. The hinge structure according to claim 1, characterized in that: The hinge cup is provided with a first eccentric pin, a first limiting slot on the hinge cup, and a first mounting hole on the hinge cup seat; the first eccentric pin passes through the first limiting slot and is fixedly connected to the first mounting hole; When the first eccentric nail is adjusted, the hinge cup can be driven to slide up and down relative to the hinge cup seat to achieve height adjustment of the heavy aluminum frame glass door.

5. The hinge structure according to claim 1, characterized in that: It also includes a connecting rod, one end of which is hinged to the hinge cup, and the other end of which is hinged to the main body arm; An accommodating cavity for accommodating the first crankshaft or the second crankshaft is defined in the connecting rod.

6. The hinge structure according to claim 5, characterized in that: One end of the first crankshaft is provided with a first hinge hole for being hinged to the hinge cup, and the other end is provided with a second hinge hole for being hinged to the main body arm; one end of the second crankshaft is provided with a third hinge hole for being hinged to the hinge cup, and the other end is provided with a fourth hinge hole for being hinged to the main body arm; one end of the connecting rod is provided with a fifth hinge hole for being hinged to the hinge cup, and the other end is provided with a sixth hinge hole for being hinged to the main body arm, wherein: The hinge further comprises a shaft sleeve respectively provided in the first hinge hole, the second hinge hole, the third hinge hole, the fourth hinge hole, the fifth hinge hole and the sixth hinge hole, wherein the shaft sleeve is provided with an anti-rotation convex bump, and the first hinge hole, the second hinge hole, the third hinge hole, the fourth hinge hole, the fifth hinge hole and the sixth hinge hole are each provided with an anti-rotation groove engaged with the anti-rotation convex bump; The shaft sleeve is provided with a shaft hole.

7. The hinge structure according to claim 1, characterized in that: The second adjusting mechanism includes an adjusting screw, a threaded hole provided on the main arm and threadedly engaged with the adjusting screw, a second limiting groove provided on the fixing seat, and a first meson; the adjusting screw passes through the threaded hole and the second limiting groove in sequence and is fixedly connected to the first meson; When the adjusting screw is adjusted, the main body arm can be driven to slide forward and backward relative to the fixing seat to achieve the covering position adjustment of the heavy aluminum frame glass door.

8. The hinge structure according to claim 1, characterized in that: The third adjusting mechanism includes a second eccentric nail, an adjusting hole provided on the main arm, a third limiting groove provided on the fixing seat, and a second meson; the second eccentric nail passes through the adjusting hole and the third limiting groove in sequence and is fixedly connected to the second meson; When the second eccentric nail is adjusted, the main body arm can be driven to move left and right relative to the fixing seat so as to adjust the size of the door gap between the heavy aluminum frame glass door and the cabinet body.

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