Thin hinge for sheet material

Abstract

The present application provides a kind of thin plate material's thin hinge, including hinge cup, transmission arm group and hinge seat, one end of transmission arm group is hinged in hinge cup by U-shaped pin, the other end of transmission arm group is hinged in hinge seat by connecting pin group, hinge cup is equipped with buffer damping element, damping starting plate and circular arc mounting element, circular arc mounting element is respectively clamped in the left and right sides of the inner cavity of hinge cup, to separate the two sides of inner cavity with circular arc cavity, the side wall of hinge cup is opened with round hole, and circular arc cavity and round hole form split mounting assembly, damping starting plate is slidably mounted in the inner cavity of hinge cup, and the front end of damping starting plate is connected with the push rod of buffer damping element, and the end of damping starting plate is slidably connected or separated with transmission arm group along with the opening and closing of hinge cup. Simple structure, easy to disassemble and assemble, easy to maintain, reduce the overall volume, adapt to thin plate product, at the same time, it can strengthen the structural stability, ensure the buffering effect, and ensure the use quality of the product.

Description

Technical Field

[0001] This invention relates to the field of hinge technology, specifically a thin hinge for thin sheet metal. Background Technology

[0002] Hinges are widely used in furniture and appliances. The structure of existing hinges generally includes a hinge cup installed on the door, a hinge seat installed on the cabinet, and a transmission arm assembly that is hinged between the hinge cup and the hinge seat. The transmission arm assembly enables the hinge cup to open and close on the hinge seat, thereby enabling the door to open and close on the cabinet.

[0003] Furthermore, during the closing process, the door can close automatically. Generally, a power source for self-closing is added to the transmission arm assembly. This power source uses a torsion spring, which has a simple structure and realizes the automatic closing function of the hinge.

[0004] However, the above-mentioned traditional hinges have the following shortcomings in use: 1) Traditional hinges add a buffer damper to the hinge seat. Although this increases the buffering effect, it makes the overall size of the hinge large, which is not suitable for use in thinner furniture and appliances.

[0005] 2) Traditional hinges can have a damper installed in the hinge cup. When the damper is externally mounted, the gap generated when the hinge drive arm assembly is fully closed increases, requiring an increase in the height of the hinge cup. This results in an increase in the overall volume occupied by the hinge, making it unsuitable for products made of thin sheet metal. At the same time, when the hinge cup closes and pushes the damper, prolonged use can easily cause the damper to detach from the hinge cup, resulting in a loss of damping effect and seriously affecting the quality of product use. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a thin hinge for thin sheet metal, which has a simple structure, is easy to assemble and disassemble, is easy to maintain, reduces the overall volume occupied, lowers the manufacturing cost, is suitable for use in thin sheet metal products, and at the same time can enhance the structural stability, ensure the cushioning effect, and ensure the quality of product use.

[0007] The objective of this invention is achieved as follows: A thin hinge for thin sheet metal includes a hinge cup, a transmission arm assembly, and a hinge seat. One end of the transmission arm assembly is hinged to the hinge cup via a U-shaped pin, and the other end of the transmission arm assembly is hinged to the hinge seat via a connecting pin assembly. The hinge cup is provided with a buffer damping element, a damping activation plate, and an arc-shaped mounting element. The arc-shaped mounting element is respectively fitted onto the left and right sides of the inner cavity of the hinge cup to separate the two sides of the inner cavity into arc-shaped cavities. The side wall of the hinge cup has a circular hole communicating with the arc-shaped cavity. The arc-shaped cavity and the circular hole form a split mounting assembly for fixing and installing the cylinder of the buffer damping element. The damping activation plate is slidably mounted in the inner cavity of the hinge cup, and the front end of the damping activation plate is connected to the push rod of the buffer damping element. The end of the damping activation plate is slidably connected to or slidably separated from the transmission arm assembly as the hinge cup opens and closes.

[0008] Based on the above optimization, the arc mounting component is provided with side locking points and bottom locking points, and the side wall and bottom surface of the hinge cup are respectively provided with side locking grooves and bottom locking grooves for matching and locking with the side locking points and bottom locking points.

[0009] Based on the above optimization, the bottom surface of the cylinder of the buffer damping component abuts against the U-shaped pin.

[0010] Based on the above optimization, the front end of the damping start plate is provided with a front connecting block that is always connected to the push rod surface of the buffer damping component as the hinge cup opens and closes, and the rear end of the damping start plate is provided with a rear connecting protrusion for sliding connection or sliding separation with the transmission arm assembly.

[0011] Based on the above optimization, the transmission arm assembly includes a hinged arm and a transmission rod. One end of the hinged arm and the transmission rod are respectively hinged to the hinge cup by U-shaped pins, and the other end of the hinged arm and the transmission rod are hinged to the hinge seat by a first connecting pin and a second connecting pin. A torsion spring is fitted on the first connecting pin, and the two elastic ends of the torsion spring are respectively connected to the hinged arm and the transmission rod. The hinged arm is provided with a connecting protrusion for sliding connection or sliding separation with the rear end of the damping start plate.

[0012] Based on the above optimization, the hinge seat is provided with a base, the base is provided with an adjustment frame for adjusting the installation position, the hinge seat is provided with an up-down adjustment component and a front-back adjustment component, one end of the up-down adjustment component is snapped into the adjustment frame, the other end of the up-down adjustment component is threaded to the hinge seat, one end of the front-back adjustment component is fixedly connected to the adjustment frame, and the other end of the front-back adjustment component is eccentrically rotatably connected to the hinge seat.

[0013] Based on the above optimization, the hinge seat is provided with a limiting protrusion for positioning the front and rear adjustment members and a limiting protrusion for limiting the front and rear adjustment members to rotate only 90 degrees left and right. The limiting protrusion is distributed on the hinge seat, and the limiting protrusion is located on one side between the limiting protrusions.

[0014] Based on the above optimization, the adjustment frame is equipped with a guide for the hinge seat to slide back and forth relative to each other. One end of the guide is fixedly connected to the base, and the other end of the guide is slidably connected to the hinge seat and the adjustment frame respectively.

[0015] Based on the above optimization, the base is provided with a mounting pin for fixed connection with the adjustment frame, and the base is integrally formed with a reinforcing positioning block to prevent deformation of the mounting pin during assembly and use. The mounting pin passes through the base, the reinforcing positioning block and the adjustment frame respectively.

[0016] Based on the above optimization, the base is provided with a decorative cover, which covers the hinge and is snapped onto the base.

[0017] The advantages of this invention are: 1) The buffer damping component is assembled into the inner cavity of the hinge cup using a split arc mounting component. The structure is simple, easy to disassemble and assemble, and easy to maintain. At the same time, it makes the gap formed between the damping start plate and the transmission arm assembly smaller when the hinge is fully closed, thereby making the height of the hinge cup smaller so that the product can be adapted to thinner plates and improve the applicability of the product.

[0018] 2) Through the structural cooperation between the transmission arm assembly and the damping start plate, the connecting protrusion and the rear connecting protrusion are linked during the opening and closing of the hinge cup, so as to achieve the purpose of slow closing of the hinge and ensure the quality of product use. Attached Figure Description

[0019] Figure 1 This is a front view of a preferred embodiment of the present invention.

[0020] Figure 2 This is a cross-sectional view of the fully opened state of a preferred embodiment of the present invention.

[0021] Figure 3 This is a cross-sectional view of the preferred embodiment of the present invention in its fully opened state (with the decorative cover omitted).

[0022] Figure 4 This is an exploded view of a preferred embodiment of the present invention.

[0023] Figure 5 Partial exploded view of a preferred embodiment of the present invention Figure 6 This is a cross-sectional view of the state when the preferred embodiment of the present invention is turned on.

[0024] Figure 7 This is a diagram showing the relationship between the buffer damping component and the damping start plate when the device is turned on, according to a preferred embodiment of the present invention.

[0025] Figure 8 This is a diagram showing the relationship between the fully closed state in a preferred embodiment of the present invention.

[0026] Figure 9 This is a diagram showing the relationship between the buffer damping component and the damping start plate in the fully closed state, according to a preferred embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the assembly of the hinge cup, buffer damping component, and damping start plate according to a preferred embodiment of the present invention.

[0028] Figure 11 This is a partial exploded view of the hinge cup, buffer damping component, and damping start plate according to a preferred embodiment of the present invention.

[0029] Figure 12 This is an exploded view of the hinge cup, buffer damping component, and damping start plate according to a preferred embodiment of the present invention.

[0030] Figure 13 This is an exploded view of the hinge cup, buffer damping component, and damping start plate from another angle, representing a preferred embodiment of the present invention. Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings.

[0032] According to the appendix Figures 1 to 13 As shown, the thin hinge for thin sheet metal of the present invention includes a hinge cup 1, a transmission arm assembly 2, and a hinge seat 3. One end of the transmission arm assembly 2 is hinged to the hinge cup 1 via a U-shaped pin 4, and the other end of the transmission arm assembly 2 is hinged to the hinge seat 3 via a connecting pin assembly. The hinge cup 1 is provided with a buffer damping element 5, a damping activation plate 6, and an arc-shaped mounting element 7. The arc-shaped mounting element 7 is respectively fitted onto the left and right sides of the inner cavity of the hinge cup 1 to separate the two sides of the inner cavity into arc-shaped cavities 8. A circular hole 9 communicating with the arc-shaped cavity 8 is opened on the side wall of the hinge cup 1. The arc-shaped cavity 8 and the circular hole 9 form a split mounting assembly for fixing the cylinder of the buffer damping element 5.

[0033] The buffer damping component 5 is assembled into the inner cavity of the hinge cup 1 using a split arc mounting component 7. The structure is simple, easy to disassemble and assemble, and easy to maintain. At the same time, it makes the gap formed between the damping start plate 6 and the transmission arm assembly 2 smaller when the hinge is fully closed, thereby making the height of the hinge cup 1 smaller so that the product can be adapted to thinner plates and improve the applicability of the product.

[0034] In practical applications, the arc mounting component 7 is provided with a side locking point 10 and a bottom locking point 11, and the side wall and bottom surface of the hinge cup 1 are respectively provided with a side locking groove 12 and a bottom locking groove 13 for matching and locking with the side locking point 10 and the bottom locking point 11.

[0035] Moreover, the bottom surface of the cylinder of the buffer damping member 5 abuts against the U-shaped pin 4.

[0036] The structure of side locking point 10, bottom locking point 11, side locking groove 12, and bottom locking groove 13 is used to lock the arc mounting part 7 into the inner cavity of the hinge cup 1, making it easy to install and remove the buffer damping part 5 from the inner cavity of the hinge cup 1. The operation is convenient. At the same time, the connection structure of U-shaped pin 4 is used to enhance the installation stability of the buffer damping part 5 and ensure the performance of the buffer damping part 5.

[0037] Reference Figures 1 to 13 As shown, the damping start plate 6 is slidably mounted in the inner cavity of the hinge cup 1, and the front end of the damping start plate 6 is connected to the push rod of the buffer damping component 5. The end of the damping start plate 6 is slidably connected to or slidably separated from the transmission arm assembly 2 as the hinge cup 1 opens and closes.

[0038] The damping start plate 6 has a front connecting block 14 at its front end, which is always connected to the push rod surface of the buffer damping member 5 as the hinge cup 1 opens and closes, and a rear connecting protrusion 15 at its rear end, which is slidably connected or slidably separated from the transmission arm assembly 2.

[0039] In practical applications, the transmission arm assembly 2 includes a hinged arm 21 and a transmission rod 22. One end of the hinged arm 21 and the transmission rod 22 are respectively hinged to the hinge cup 1 via U-shaped pins 4, and the other end of the hinged arm 21 and the transmission rod 22 are hinged to the hinge seat 3 via a first connecting pin 16 and a second connecting pin 17. A torsion spring 29 is fitted onto the first connecting pin 16, and the two elastic ends of the torsion spring 29 are respectively connected to the hinged arm 21 and the transmission rod 22. The hinged arm 21 is provided with a connecting protrusion 18 for sliding connection or sliding separation with the rear end of the damping start plate 6.

[0040] When the hinge begins to close, the torsion spring 29 acts elastically on the transmission arm assembly 2, causing the hinge cup 1 to close automatically. At this time, the connecting protrusion 18 at the front end of the hinge arm 21 connects to the rear connecting protrusion 15 of the damping start plate 6. During the period when the hinge continues to close until it is fully closed, the connecting protrusion 18 slides on the rear connecting protrusion 15 as the hinge arm 21 swings, thereby pushing the damping start plate 6 to move linearly in the inner cavity of the hinge cup 1, so that the front connecting block 14 compresses the push rod of the buffer damping element 5, achieving the purpose of the hinge closing automatically at a uniform speed and slowly.

[0041] When the hinge cup 1 is closed, the connecting protrusion 18 of the hinge arm 21 pushes the damping start plate 6 to move smoothly and linearly within the hinge cup 1, thereby triggering the action of the buffer damping element 5 to achieve the purpose of slowly closing the hinge.

[0042] When the hinge is opened to a certain position from the fully closed position, the buffer damping element 5, with its own rebound function, always keeps the front connecting block 14 of the damping start plate 6 connected to the push rod of the buffer damping element 5, so that the buffer damping element 5 is always in working state, so as to achieve the function of buffering when the hinge is opened and closed at a small angle.

[0043] Reference Figures 1 to 13 As shown in the diagram, further detailed, the hinge 3 is provided with a base 19, the base 19 is provided with an adjustment frame 20 for adjusting the installation position, and the hinge 3 is provided with an up-and-down adjustment member 23 and a front-and-back adjustment member 24. One end of the up-and-down adjustment member 23 is snapped into the adjustment frame 20, and the other end of the up-and-down adjustment member 23 is threaded to the hinge 3. One end of the front-and-back adjustment member 24 is fixedly connected to the adjustment frame 20, and the other end of the front-and-back adjustment member 24 is eccentrically rotatably connected to the hinge 3.

[0044] In the optimized scheme, the hinge seat 3 is provided with a limiting protrusion 31 for positioning the front and rear adjustment member 24 and a limiting protrusion 32 for limiting the front and rear adjustment member 24 to rotate only 90 degrees left and right. The limiting protrusion 31 is distributed on the hinge seat 3, and the limiting protrusion 32 is located on one side between the limiting protrusions 31.

[0045] That is, the hinge cup 1 is installed on the cabinet door, and the base 19 is fixedly installed on the cabinet body. When the up-down adjustment component 23 is rotated, the hinge seat 3 can move up and down relative to the adjustment frame 20 to adjust the up-down installation position of the hinge. When the front-back adjustment component 24 is rotated 90 degrees to the left or right, the hinge seat 3 can move back and forth relative to the adjustment frame 20 to adjust the front-back installation position of the hinge.

[0046] The upper and lower adjustment parts 23 and the front and rear adjustment parts 24 of this structure are easy to operate, enhance the stability of the structure, make the adjustment process smoother and more stable, and ensure the assembly quality of the product.

[0047] Furthermore, the adjustment frame 20 is provided with a guide 25 for the hinge seat 3 to slide back and forth relative to each other. One end of the guide 25 is fixedly connected to the base 19, and the other end of the guide 25 is slidably connected to the hinge seat 3 and the adjustment frame 20 respectively.

[0048] The guide component 25 enhances the smoothness and stability of product adjustment, ensuring the quality of product use.

[0049] In addition, the base 19 is provided with a mounting pin 26 for fixed connection with the adjustment frame 20. The base 19 is integrally formed with a reinforcing positioning block 27 to prevent the mounting pin 26 from deforming during assembly and use. The mounting pin 26 passes through the base 19, the reinforcing positioning block 27 and the adjustment frame 20 respectively.

[0050] By strengthening the structural fit between the positioning block 27 and the mounting pin 26, the bending deformation of the mounting pin 26 can be effectively avoided when adjusting the assembly position, making the product adjustment smoother and more stable.

[0051] Furthermore, the base 19 is provided with a decorative cover 28, which covers the hinge seat 3 and is snapped onto the base 19.

[0052] The decorative cover 28 protects the components from dust while ensuring the product's aesthetic appeal.

[0053] The above specific embodiments are merely specific implementations of the present invention with better effects. Any structure that is the same as or equivalent to the thin hinge used for thin plates in the present invention is within the protection scope of the present invention.

Claims

1. A thin hinge for thin sheet metal, comprising a hinge cup (1), a transmission arm assembly (2), and a hinge seat (3), wherein one end of the transmission arm assembly (2) is hinged to the hinge cup (1) via a U-shaped pin (4), and the other end of the transmission arm assembly (2) is hinged to the hinge seat (3) via a connecting pin assembly, characterized in that: The hinge cup (1) is provided with a buffer damping component (5), a damping start plate (6) and an arc mounting component (7). The arc mounting component (7) is respectively clamped on the left and right sides of the inner cavity of the hinge cup (1) to separate the two sides of the inner cavity into arc-shaped cavities (8). The side wall of the hinge cup (1) has a circular hole (9) communicating with the arc-shaped cavity (8). The arc-shaped cavity (8) and the circular hole (9) form a split mounting assembly for fixing the cylinder of the buffer damping component (5). The damping start plate (6) is slidably mounted in the inner cavity of the hinge cup (1), and the front end of the damping start plate (6) is connected to the push rod of the buffer damping component (5). The end of the damping start plate (6) is slidably connected to or slidably separated from the transmission arm assembly (2) as the hinge cup (1) opens and closes.

2. The thin hinge for thin sheet metal according to claim 1, characterized in that: The arc mounting component (7) is provided with a side locking point (10) and a bottom locking point (11). The side wall and bottom surface of the hinge cup (1) are respectively provided with a side locking groove (12) and a bottom locking groove (13) for matching and locking with the side locking point (10) and the bottom locking point (11).

3. The thin hinge for thin sheet metal according to claim 1, characterized in that: The bottom surface of the cylinder of the buffer damping component (5) abuts against the U-shaped pin (4).

4. The thin hinge for thin sheet metal according to claim 1, characterized in that: The front end of the damping start plate (6) is provided with a front connecting block (14) that is always connected to the push rod surface of the buffer damping member (5) as the hinge cup (1) opens and closes, and the rear end of the damping start plate (6) is provided with a rear connecting protrusion (15) for sliding connection or sliding separation with the transmission arm assembly (2).

5. The thin hinge for thin sheet metal according to claim 1, characterized in that: The transmission arm assembly (2) includes a hinge arm (21) and a transmission rod (22). One end of the hinge arm (21) and the transmission rod (22) are respectively hinged to the hinge cup (1) by a U-shaped pin (4). The other end of the hinge arm (21) and the transmission rod (22) are hinged to the hinge seat (3) by a first connecting pin (16) and a second connecting pin (17). The first connecting pin (16) is fitted with a torsion spring (29). The two elastic ends of the torsion spring (29) are respectively connected to the hinge arm (21) and the transmission rod (22). The hinge arm (21) is provided with a connecting protrusion (18) for sliding connection or sliding separation with the rear end of the damping start plate (6).

6. The thin hinge for thin sheet metal according to claim 1, characterized in that: The hinge (3) is provided with a base (19), the base (19) is provided with an adjustment frame (20) for adjusting the installation position, the hinge (3) is provided with an up-down adjustment component (23) and a front-back adjustment component (24), one end of the up-down adjustment component (23) is snapped into the adjustment frame (20), the other end of the up-down adjustment component (23) is threaded to the hinge (3), one end of the front-back adjustment component (24) is fixedly connected to the adjustment frame (20), and the other end of the front-back adjustment component (24) is eccentrically rotatably connected to the hinge (3).

7. The thin hinge for thin sheet metal according to claim 6, characterized in that: The hinge (3) is provided with a limiting protrusion (31) for positioning the front and rear adjustment member (24) and a limiting protrusion (32) for limiting the front and rear adjustment member (24) to rotate only 90 degrees left and right. The limiting protrusion (31) is distributed on the hinge (3) front and rear, and the limiting protrusion (32) is located on one side between the limiting protrusions (31).

8. The thin hinge for thin sheet metal according to claim 6, characterized in that: The adjustment frame (20) is provided with a guide (25) for the hinge seat (3) to slide back and forth relative to each other. One end of the guide (25) is fixedly connected to the base (19), and the other end of the guide (25) is slidably connected to the hinge seat (3) and the adjustment frame (20) respectively.

9. The thin hinge for thin sheet metal according to claim 6, characterized in that: The base (19) is provided with a mounting pin (26) for fixed connection with the adjustment frame (20). The base (19) is integrally formed with a reinforcing positioning block (27) to prevent the mounting pin (26) from deforming during assembly and use. The mounting pin (26) passes through the base (19), the reinforcing positioning block (27) and the adjustment frame (20) respectively.

10. The thin hinge for thin sheet metal according to claim 6, characterized in that: The base (19) is provided with a decorative cover (28) which covers the hinge (3) and is snapped onto the base (19).

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