Submerged hidden hinge

Abstract

The utility model provides a submerged hidden hinge, which comprises a door plate hinge cup group, a side plate hinge seat group and a transmission part, the transmission part comprises a connecting arm and a transmission arm, the transmission arm is respectively connected with the door plate hinge cup group and the side plate hinge seat group through a connecting shaft and a fixing shaft, and the positioning end of the connecting arm is connected with the door plate hinge cup group through a positioning shaft. The connecting end of the connecting arm is in sliding connection with the connecting shaft along with the door plate hinge cup set, the positioning shaft is provided with a spring, one elastic end of the spring is connected to the door plate hinge cup set, and the other elastic end of the spring is connected to the connecting arm. The transmission arm is provided with a buffering set, the buffering set is installed on the transmission arm, and the movable end of the buffering set is in relative sliding connection with the connecting arm when the door plate hinge cup set is closed. The structure is simple, small in occupied size, attractive and stable, two-section force opening and small-angle buffering are achieved, the installation position can be adjusted at multiple angles, the adaptability is high, and the use quality of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a sunken hidden hinge. Background Art

[0002] Existing hinges are widely used in furniture and electrical appliances. In particular, the hidden hinges on the market include a hinge cup installed on a door panel, a hinge seat installed on a cabinet body, a hinge arm hinged between the hinge cup and the hinge seat, and a transmission component for the hinge cup to open and close on the hinge seat. Among them, a torsion spring for providing a closing power source for the hinge cup is installed at the hinge joint between the hinge seat and the hinge arm.

[0003] However, the hidden hinges on the market have the following deficiencies in actual applications.

[0004] 1) Traditional hidden hinges have no buffer force during closing. When a buffer damper is added, the structure is complex, the occupied volume is large, and it is not suitable for small-angle buffering during use, with great limitations in use.

[0005] 2) After traditional hidden hinges are fully opened, a rebounding phenomenon occurs due to the elastic action of the torsion spring, resulting in a smaller opening amplitude and affecting normal use.

[0006] 3) To avoid interference between the hinge cup and the hinge seat, there are relatively large gaps in traditional hidden hinges, resulting in a larger overall structure of the hinge, not being suitable for assembly with thinner installation plates, and being prone to dust and dirt accumulation, which is not conducive to the normal use of the product. Summary of the Utility Model

[0007] The invention purpose of the utility model is to overcome the deficiencies of the prior art and provide a sunken hidden hinge, which has a simple structure, a small occupied volume, is beautiful, and has a stable structure. It has a two-stage force opening, small-angle buffering, and can adjust the installation position at multiple angles, with a high degree of applicability and an improved use quality of the product.

[0008] The invention purpose of the utility model is realized as follows: A sunken hidden hinge includes a door panel hinge cup group, a side plate hinge seat group, and a transmission component for the door panel hinge cup group to open and close on the side plate hinge seat group. The two ends of the transmission component are respectively hinged between the door panel hinge cup group and the side plate hinge seat group. Among them, the transmission component includes a connecting arm and a transmission arm. The front end of the transmission arm is movably connected to the door panel hinge cup group through a connecting shaft, and the rear end of the transmission arm is fixedly connected to the side plate hinge seat group through a fixed shaft. The positioning end of the connecting arm is connected to the door panel hinge cup group through a positioning shaft, and the connecting end of the connecting arm is slidably connected to the connecting shaft along with the door panel hinge cup group. A spring for applying an elastic force to the connecting shaft through the connecting arm during the closing of the door panel hinge cup group is installed on the positioning shaft. One elastic end of the spring is connected to the door panel hinge cup group, and the other elastic end of the spring is connected to the connecting arm;

[0009] The transmission arm is provided with a buffer group for closing buffer function. The buffer group is installed on the transmission arm, and the movable end of the buffer group is slidably connected to the connecting arm during the closing of the door panel hinge cup group.

[0010] Optimized according to the above, the connecting arm is provided with a convex edge block that can be slidably connected to or separated from the movable rod of the buffer group as the door panel hinge cup group opens and closes. The convex edge block is fixed on the connecting arm.

[0011] Optimized according to the above, the door panel hinge cup group includes a door panel fixed cup and a positioning hinge cup. The door panel fixed cup is installed in the door panel in a recessed manner. The positioning hinge cup is clamped in the door panel fixed cup. The positioning hinge cup is installed with a positioning shaft adapted to be installed with the connecting arm, a connecting shaft adapted to be installed with the transmission arm, and a fixing pin connected to one elastic end of the spring.

[0012] Optimized according to the above, a groove and a convex block for mating sliding are provided between the door panel fixed cup and the positioning hinge cup. The door panel fixed cup is provided with a locking screw for fixedly connecting to the positioning hinge cup and a mounting hole for fixing the door panel.

[0013] Optimized according to the above, a linear guide groove for adapting the linear sliding of the fixing pin is opened at the front end of the door panel fixed cup. The positioning hinge cup is provided with an arc guide groove consistent with the opening and closing track. The connecting shaft slides on the arc guide groove as the positioning hinge cup opens and closes.

[0014] Optimized according to the above, the side plate hinge seat group includes a side plate fixed seat and an adjustable connecting seat. The side plate fixed seat is installed in the side plate in a recessed manner. The adjustable connecting seat can move within the side plate fixed seat. A fixed shaft for relatively linear movement is installed at the rear end of the transmission arm within the adjustable connecting seat. The adjustable connecting seat is provided with a guide groove for the linear movement of the fixed shaft.

[0015] Optimized according to the above, the adjustable connecting seat is provided with a height adjustment member for adjusting the installation position of the depth of the side plate fixed seat sunk and a left - right adjustment member for adjusting the left - right installation position of the side plate fixed seat. One end of the height adjustment member is installed on the adjustable connecting seat, and the other end of the height adjustment member is threadedly connected to the side plate fixed seat. One end of the left - right adjustment member is eccentrically connected to the adjustable connecting seat, and the other end of the left - right adjustment member is fixed to the side plate fixed seat;

[0016] A clearance groove corresponding to the height adjustment member and the left - right adjustment member is opened at the rear end of the transmission arm.

[0017] Optimized according to the above, the side plate fixed seat is provided with a decorative cover. The decorative cover can be disassembled and assembled on the side plate fixed seat and forms an installation cavity for adaptively installing the adjustable connecting seat and the transmission arm.

[0018] Optimized according to the above, the buffer group includes a buffer seat and a buffer. The buffer seat can be disassembled and installed in the transmission arm. The buffer is installed in the buffer seat. The piston rod of the buffer is fixedly connected to the transmission arm through a fixed shaft. The cylinder block of the buffer is slidably connected to the connecting arm relative to the closing of the door panel hinge cup group.

[0019] The advantages of the present utility model are as follows:

[0020] 1) The spring of the hidden hinge of this structure has its two elastic ends always connected to the door panel hinge cup group and the connecting arm. During opening and closing, the connecting arm slides on the connecting shaft, so that the elastic force of the spring acts on the connecting shaft through the connecting arm, having a two-stage force opening, enabling stable rotation during opening and closing, saving effort, being convenient to operate, effectively preventing the door panel from rebounding, ensuring a sufficient opening amplitude for convenient placing and taking, and ensuring the use quality of the product.

[0021] 2) Matching the structure of the buffer group, during closing, when closing at about 45 degrees, the convex edge block swings with the connecting arm and contacts the buffer group, making the buffer group work until the hinge is completely closed with a buffer closing effect, reducing noise generation, operating stably, and improving the use effect of the product.

[0022] 3) Adopting the hidden hinge of this structure further reduces the overall volume, is beautiful, has a high load-bearing capacity, is suitable for thin plate type assembly, and has multi-directional adjustment of the installation position, improving the assembly accuracy and high applicability. Description of the Drawings

[0023] Figure 1 It is a top view of the completely opened state of the preferred embodiment of the present utility model.

[0024] Figure 2 It is a cross-sectional view of the completely opened state of the preferred embodiment of the present utility model.

[0025] Figure 3 It is a top view of the state when the preferred embodiment of the present utility model is being opened.

[0026] Figure 4 It is a cross-sectional view of the state when the preferred embodiment of the present utility model is being opened.

[0027] Figure 5 It is a top view of the closed state of the preferred embodiment of the present utility model.

[0028] Figure 6 It is a cross-sectional view of the closed state of the preferred embodiment of the present utility model.

[0029] Figure 7 It is an exploded view of the preferred embodiment of the present utility model.

[0030] Figure 8This is the open usage diagram after assembly of the preferred embodiment of the present utility model.

[0031] Figure 9 This is the closed usage diagram after assembly of the preferred embodiment of the present utility model. Detailed implementation manners

[0032] The present utility model will be further described below with reference to the accompanying drawings.

[0033] According to the Figures 1 to 9 As shown in the figure, the recessed hidden hinge of the present utility model includes a door panel hinge cup group 1, a side plate hinge seat group 2, and a transmission component for the door panel hinge cup group 1 to open and close on the side plate hinge seat group 2. Both ends of the transmission component are respectively hinged between the door panel hinge cup group 1 and the side plate hinge seat group 2. Among them, the transmission component includes a connecting arm 3 and a transmission arm 4. The front end of the transmission arm 4 is movably connected to the door panel hinge cup group 1 through a connecting shaft 5, and the rear end of the transmission arm 4 is fixedly connected to the side plate hinge seat group 2 through a fixed shaft 6. The positioning end of the connecting arm 3 is connected to the door panel hinge cup group 1 through a positioning shaft 7. The connecting end of the connecting arm 3 is slidably connected to the connecting shaft 5 along with the door panel hinge cup group 1. A spring 8 for the elastic force to act on the connecting shaft 5 through the connecting arm 3 during the closing of the door panel hinge cup group 1 is installed on the positioning shaft 7. One elastic end of the spring 8 is connected to the door panel hinge cup group 1, and the other elastic end of the spring 8 is connected to the connecting arm 3.

[0034] Referring to Figures 1 to 9 As shown, in the optimized solution, the door panel hinge cup group 1 includes a door panel fixed cup 11 and a positioning hinge cup 12. The door panel fixed cup 11 is recessed and installed on the door panel. The positioning hinge cup 12 is clamped in the door panel fixed cup 11. The positioning hinge cup 12 is installed with a positioning shaft 7 adapted to the connecting arm 3, a connecting shaft 5 adapted to the transmission arm 4, and a fixed pin 13 connected to one elastic end of the spring 8.

[0035] For the spring 8 of this structure hidden hinge, its two elastic ends are always connected to the door panel hinge cup group 1 and the connecting arm 3. During closing, the connecting arm 3 slides on the connecting shaft 5, so that the elastic force of the spring 8 acts on the connecting shaft 5 through the connecting arm 3. When the door panel hinge cup group 1 closes to a specified position such as a 45-degree angle along with the door panel, with the spring 8 providing the closing power source, the door panel hinge cup group 1 automatically closes towards the side plate hinge seat group 2. Similarly, during opening, the reset elastic force of the spring 8 acts on the door panel hinge cup group 1 through the positioning shaft, with a two-stage force opening.

[0036] In this way, by using the hidden hinge of this structure, it rotates stably during opening and closing, reduces the friction between the connecting arm 3 and the connecting shaft 5, saves effort, is convenient to operate, and ensures the use quality of the product.

[0037] Moreover, a linear guide groove 16 for fitting the linear sliding of the fixing pin 13 is formed at the front end of the door panel fixing cup 11, an arc guide groove 17 consistent with the opening and closing track is formed in the positioning hinge cup 12, and the connecting shaft 5 slides on the arc guide groove 17 along with the opening and closing of the positioning hinge cup 12.

[0038] With the structural cooperation of the linear guide groove 16, the arc guide groove 17, the fixing pin 13 and the connecting shaft 5, the stability of the operating structure is improved, the gap between the door panel hinge cup group 1 and the side plate hinge seat group 2 can be reduced, the door panel can be effectively prevented from rebounding, ensuring a sufficient opening amplitude for convenient placing and taking. At the same time, interference between the door panel hinge cup group 1 and the side plate hinge seat group 2 during operation is avoided.

[0039] In addition, a groove 14 and a convex block 15 for mating sliding are provided between the door panel fixing cup 11 and the positioning hinge cup 12. The door panel fixing cup 11 is provided with locking screws for fixedly connecting with the positioning hinge cup 12 and mounting holes for fixing the door panel.

[0040] The door panel hinge cup group 1 adopting this structure is assembled in a combined manner, which is convenient for assembly, has a low manufacturing cost, a high load-bearing capacity, and improves the structural stability.

[0041] Refer to Figures 1 to 9 As shown, for further refinement, the transmission arm 4 is provided with a buffer group 9 having a closing buffer function. The buffer group 9 is installed on the transmission arm 4, and the movable end of the buffer group 9 is slidably connected to the connecting arm 3 relatively during the closing of the door panel hinge cup group 1.

[0042] In an optimized scheme, the connecting arm 3 is provided with a convex edge block 10 capable of slidingly connecting or separating from the movable rod of the buffer group 9 along with the opening and closing of the door panel hinge cup group 1. The convex edge block 10 is fixed on the connecting arm 3.

[0043] Among them, the buffer group 9 includes a buffer seat 91 and a buffer 92. The buffer seat 91 can be disassembled and assembled in the transmission arm 4. The buffer 92 is installed in the buffer seat 91. The piston rod of the buffer 92 is fixedly connected to the transmission arm 4 through a fixed shaft 6, and the cylinder body of the buffer 92 is slidably connected to the connecting arm 3 relatively along with the closing of the door panel hinge cup group 1.

[0044] Cooperating with the structure of the buffer group 9, the combined assembly is stable in structure. During the closing process, such as when closing at about 45 degrees, the convex edge block 10 contacts the buffer group 9 along with the swing of the connecting arm 3, enabling the buffer group 9 to work until the hinge is completely closed, having a buffer closing effect, reducing noise generation, operating stably, and improving the use effect of the product.

[0045] Refer to Figures 1 to 9As shown, for further refinement, the side plate hinge seat group 2 includes a side plate fixed seat 21 and an adjustable connection seat 22. The side plate fixed seat 21 is installed in the side plate in a sunken manner, the adjustable connection seat 22 can move within the side plate fixed seat 21, a fixed shaft 6 for linear movement relative to the adjustable connection seat 22 is installed at the rear end of the transmission arm 4, and a guide groove 23 for linear movement of the fixed shaft 6 is formed in the adjustable connection seat 22.

[0046] Moreover, the adjustable connection seat 22 is provided with a height adjustment member 24 for adjusting the installation position of the sunken depth of the side plate fixed seat 21 and a left - right adjustment member 25 for adjusting the left - right installation position of the side plate fixed seat 21. One end of the height adjustment member 24 is installed on the adjustable connection seat 22, and the other end of the height adjustment member 24 is threadedly connected to the side plate fixed seat 21. One end of the left - right adjustment member 25 is eccentrically connected to the adjustable connection seat 22, and the other end of the left - right adjustment member 25 is fixed to the side plate fixed seat 21. A clearance groove corresponding to the height adjustment member 24 and the left - right adjustment member 25 is formed at the rear end of the transmission arm 4.

[0047] Through the structural cooperation of the side plate fixed seat 21, the adjustable connection seat 22, the height adjustment member 24, and the left - right adjustment member 25 of the side plate hinge seat group 2, it has multi - directional adjustment of the installation position in the up - down, left - right directions, improves the assembly accuracy, and has high applicability.

[0048] In addition, the side plate fixed seat 21 is provided with a decorative cover 26. The decorative cover 26 can be disassembled and assembled on the side plate fixed seat 21 and forms an installation cavity for adaptively installing the adjustable connection seat 22 and the transmission arm 4 with the side plate fixed seat 21. It has a compact structure, simple assembly, can reduce the occupied space for assembly, is beautiful, and is suitable for thin - plate type assembly.

[0049] The above - mentioned specific embodiments are only the specific embodiments with better effects of the present invention. Any structure identical or equivalent to the sunken hidden hinge of the present invention is within the protection scope of the present invention.

Claims

1. An embedded hidden hinge, comprising a door panel hinge cup set (1), a side plate hinge seat set (2), and a transmission component for the door panel hinge cup set (1) to open and close on the side plate hinge seat set (2), both ends of the transmission component being respectively hinged between the door panel hinge cup set (1) and the side plate hinge seat set (2), characterized in that: The transmission component includes a connecting arm (3) and a transmission arm (4). The front end of the transmission arm (4) is movably connected to the door panel hinge cup set (1) through a connecting shaft (5). The rear end of the transmission arm (4) is fixedly connected to the side plate hinge seat set (2) through a fixed shaft (6). The positioning end of the connecting arm (3) is connected to the door panel hinge cup set (1) through a positioning shaft (7). The connecting end of the connecting arm (3) is slidably connected to the connecting shaft (5) along with the door panel hinge cup set (1). A spring (8) for applying an elastic force to the connecting shaft (5) through the connecting arm (3) during the closing of the door panel hinge cup set (1) is installed on the positioning shaft (7). One elastic end of the spring (8) is connected to the door panel hinge cup set (1), and the other elastic end of the spring (8) is connected to the connecting arm (3). The transmission arm (4) is provided with a buffer group (9) for closing buffering function. The buffer group (9) is installed on the transmission arm (4), and the movable end of the buffer group (9) is slidably connected to the connecting arm (3) relatively during the closing of the door panel hinge cup set (1).

2. The recessed hidden hinge according to claim 1, wherein: The connecting arm (3) is provided with a convex edge block (10) for slidably connecting or separating from the movable rod of the buffer group (9) along with the opening and closing of the door panel hinge cup set (1). The convex edge block (10) is fixed on the connecting arm (3).

3. The sunken hidden hinge according to claim 1, characterized in that: The door panel hinge cup set (1) includes a door panel fixed cup (11) and a positioning hinge cup (12). The door panel fixed cup (11) is installed in the door panel in a recessed manner. The positioning hinge cup (12) is clamped in the door panel fixed cup (11). The positioning hinge cup (12) is installed with a positioning shaft (7) adapted to be installed with the connecting arm (3), a connecting shaft (5) adapted to be installed with the transmission arm (4), and a fixed pin (13) connected to one elastic end of the spring (8).

4. The sunken hidden hinge according to claim 3, wherein: A groove (14) and a convex block (15) for mating and sliding are provided between the door panel fixed cup (11) and the positioning hinge cup (12). The door panel fixed cup (11) is provided with locking screws for fixedly connecting to the positioning hinge cup (12) and mounting holes for fixing the door panel.

5. The recessed hidden hinge according to claim 3, wherein: A linear guide groove (16) for adapting the linear sliding of the fixed pin (13) is opened at the front end of the door panel fixed cup (11). The positioning hinge cup (12) is opened with an arc guide groove (17) consistent with the opening and closing track. The connecting shaft (5) slides on the arc guide groove (17) along with the opening and closing of the positioning hinge cup (12).

6. The recessed hidden hinge according to claim 1, characterized in that: The side plate hinge seat set (2) includes a side plate fixed seat (21) and an adjustable connecting seat (22). The side plate fixed seat (21) is installed in the side plate in a recessed manner. The adjustable connecting seat (22) can move within the side plate fixed seat (21). The rear end of the transmission arm (4) is installed with a fixed shaft (6) for relatively linear movement within the adjustable connecting seat (22). The adjustable connecting seat (22) is opened with a guide groove (23) for the linear movement of the fixed shaft (6).

7. The sunken hidden hinge according to claim 6, characterized in that: The adjustable connecting seat (22) is provided with a height adjuster (24) for adjusting the sinking depth installation position of the side plate fixing seat (21) and a left-right adjuster (25) for adjusting the left-right installation position of the side plate fixing seat (21). One end of the height adjuster (24) is installed on the adjustable connecting seat (22), and the other end of the height adjuster (24) is threadedly connected to the side plate fixing seat (21). One end of the left-right adjuster (25) is eccentrically connected to the adjustable connecting seat (22), and the other end of the left-right adjuster (25) is fixed to the side plate fixing seat (21). A clearance groove corresponding to the height adjuster (24) and the left-right adjuster (25) is formed at the rear end of the transmission arm (4).

8. The sunken hidden hinge according to claim 6, characterized in that: The side plate fixing seat (21) is provided with a decorative cover (26). The decorative cover (26) can be detachably installed on the side plate fixing seat (21) and forms an installation cavity for adaptively installing the adjustable connecting seat (22) and the transmission arm (4) with the side plate fixing seat (21).

9. The sunken hidden hinge according to claim 1, wherein: The buffer group (9) includes a buffer seat (91) and a buffer (92). The buffer seat (91) can be detachably installed in the transmission arm (4). The buffer (92) is installed in the buffer seat (91). The piston rod of the buffer (92) is fixedly connected to the transmission arm (4) through a fixed shaft (6). The cylinder body of the buffer (92) is slidably connected relative to the connecting arm (3) as the door panel hinge cup group (1) closes.

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