Hinge base and sunken hinge

Abstract

The utility model belongs to the technical field of locker accessories, and particularly relates to a hinge base and a sunken hinge, and the hinge base comprises a base body, a connecting arm and a transmission mechanism. The base body adopts the design of a base installation part and a top plate which are integrally formed, the base installation part is provided with a downward-concave base sliding groove with the front end open, the top plate seals the upper end of the sliding groove, and the two sides of the top plate extend to form connecting protruding edges. The connecting arm is arranged on the base sliding groove in a sliding mode, and the transmission mechanism is installed on the connecting arm. According to the integrally-formed design, a middle adjusting piece is omitted, the number of parts is reduced, and cost and occupied space are reduced. A base sliding groove is of a multi-face closed box type structure, it is guaranteed that the connecting arm can only be pushed in horizontally, disengagement is prevented, and the deformation resistance is high. The whole structure is neat and simple, and is flush with the cabinet body after being installed, so that extremely simple aesthetics is met, and clothes are prevented from being scratched. Standardized design is compatible with automatic production, so that the method is particularly suitable for manufacturing customized furniture and batch cabinets, and the cost is reduced while the reliability and the attractiveness are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of locker accessories, specifically relating to a hinge base and a recessed hinge. Background Technology

[0002] Hinges, as key hardware components connecting doors and cabinets, directly impact the appearance and user experience of furniture through their structure and performance. Currently, most hinges on the market employ a traditional vertical stacked design. The base consists of three main parts: the base body, the connecting arm, and an intermediate adjusting component connecting the base body and the connecting arm. These three parts are connected by stacking, resulting in a relatively thick hinge overall. After installation, the hinge typically protrudes 16-20mm from the surface of the wood panel. While this design meets basic load-bearing and opening / closing functions, it also introduces some significant limitations.

[0003] First, the existing hinge's layered structure makes it appear bulky. After installation, it creates a noticeable, irregular bulge inside the cabinet, affecting the use of interior space and potentially scratching clothing or other items during use. Furthermore, the long, raised shape of the hinge clashes with the current minimalist home design trend, failing to meet consumers' demands for aesthetics and a unified look. Second, the layered structure requires extremely high precision in the fitting of core components, resulting in a complex assembly structure and numerous connecting parts, which hinders cost reduction.

[0004] In conclusion, the existing vertically stacked structure of hinges affects the aesthetics and practicality of cabinets. At the same time, its complex multi-layer assembly design requires high processing precision, which increases manufacturing costs. Utility Model Content

[0005] The first purpose of this invention is to overcome the problems of existing longitudinally stacked hinges affecting the aesthetics and practicality of cabinets and having high manufacturing costs, and to provide a hinge base.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The hinge base includes a base body, a connecting arm, and a transmission mechanism. The base body includes an integrally formed base mounting part and a top plate. The base mounting part includes a recessed base groove with an open front end. The top plate is connected to the upper end of the base mounting part to close the upper end of the base groove, and its edge extends radially outward to form a connecting flange. The connecting arm is slidably mounted on the base groove, and its front end protrudes from the base groove. The transmission mechanism is mounted on the connecting arm.

[0008] In this invention, the base mounting section and the top plate are integrally molded, eliminating the need for intermediate adjustment components, thereby reducing the number of parts, effectively lowering material and processing costs, and compressing space. The base slide adopts a box-shaped structure with the exception of the front opening, ensuring that the connecting arm can only be pushed in horizontally for installation, preventing vibration and misoperation from causing it to come off from a direction other than the front, and significantly improving the overall resistance to deformation. This design makes the base structure neat and simple, with a thickness controlled at 6-8mm. After installation, the surface is almost flush with the side wall of the cabinet, meeting the minimalist aesthetic needs of modern homes and avoiding the problem of clothing snagging caused by the protrusion of traditional hinges. Compared with existing technologies, the hinge base of this invention is compatible with automated production through standardized design, making it particularly suitable for high-end custom furniture and mass-produced cabinet manufacturing, improving product reliability and aesthetics while reducing costs.

[0009] Furthermore, the top plate is flush with the front end of the base slide groove, and the connecting flange is U-shaped. In this design, the connecting flange surrounds the base mounting part on three sides, and mounting holes can be provided on both sides and the bottom of its U-shape for connection with the cabinet side wall, thereby increasing the stability of the connection between the two and increasing the load-bearing capacity of the hinge base to meet the requirements of heavy-duty doors.

[0010] Furthermore, the base mounting portion and the top plate are integrally formed by die casting.

[0011] Furthermore, the shape of the connecting arm is adapted to the base slide groove, and a linear guide structure is provided between the connecting arm and the base slide groove.

[0012] Furthermore, a dimensional adjustment structure is provided between the connecting arm and the base, and the top plate has a first clearance hole corresponding to the dimensional adjustment structure. In actual manufacturing, the dimensional adjustment structure includes an X-axis adjustment unit and a Z-axis adjustment unit: the X-axis adjustment unit includes a first circular hole on the bottom wall of the base slide, an X-axis adjustment hole on the bottom wall of the connecting arm, and an X-axis adjustment pin connecting the two. The Z-axis adjustment unit includes a second circular hole on the bottom wall of the base slide, a Z-axis adjustment hole on the bottom wall of the connecting arm, and a Z-axis adjustment pin connecting the two. After the connecting arm is assembled into the base slide, it can move left and right, and forward and backward to adjust its initial position. After adjustment, the adjustment pin fixes the adjustment hole and the circular hole, thereby fixing the initial position of the connecting arm. Thus, by cooperating with the adjustment hole and the circular hole, the connecting arm can be independently fine-tuned in the X / Z directions in the horizontal plane (adjustment range ±2mm), solving the problem of compensation for the cumulative error of the cabinet and door panel installation. The precise fit between the bolts and the adjustment holes eliminates the loosening that often occurs after adjustment in traditional hinges, while the optimized design of the first clearance hole prevents interference between the adjustment tool and the top plate. This structure retains the high rigidity of the integrated base while also ensuring installation tolerance, making it particularly suitable for whole-house customization scenarios where high precision in door gaps is required.

[0013] Furthermore, a first linear guide structure is provided between the base slide and the bottom of the connecting arm. This first linear guide structure includes a first guide hole and a first connecting hole. The first guide hole is aligned with the length of the connecting arm and is located on one of the base slide and the connecting arm. The first connecting hole is located on the other side of both. The first guide hole and the first connecting hole are connected by bolts. The top plate has a second clearance hole corresponding to the first linear guide structure. This solution uses the first linear guide structure to confine the connecting arm to the base slide and control the movement stroke and direction of the connecting arm. Furthermore, to further enhance the bilateral synchronicity of the connecting arm's movement, a second linear guide structure is provided between the base slide and the opposite sides of the connecting arm. This second linear guide structure includes a second guide hole, a second connecting hole, and a connecting rod. The second guide hole is aligned with the length of the connecting arm and is located on one of the base slide and the connecting arm. The second connecting hole is located on the other side. The connecting rod passes through the second guide hole and the second connecting hole on both sides, ensuring bilateral synchronicity of the connecting arm's movement, reducing the risk of jamming, and extending its service life.

[0014] Furthermore, the transmission mechanism includes a swing mechanism and a buffer device. The connecting arm and the hinge cup are connected via the swing mechanism. The buffer device includes a horizontally arranged transmission arm, a buffer cylinder, and a slider. The front and rear ends of the slider are respectively connected to the buffer cylinder and the transmission arm. The transmission arm is connected to the rear side of the swing mechanism. When the swing mechanism swings, the transmission arm drives the slider to perform a horizontal reciprocating motion, causing the slider to selectively trigger the buffer cylinder. In this design, because the buffer device is horizontally arranged, the overall thickness of the hinge can be compressed to 6-8mm.

[0015] Furthermore, the connecting arm includes a receiving part and a swing arm connecting part. The receiving part is designed as a U-shaped structure that is adapted to the base slide groove, and a hinge arm receiving groove is formed on its inner side. The buffer device is provided on the hinge arm receiving groove. The swing arm connecting part is provided at the front end of the receiving part, and the swing mechanism is assembled on the swing arm connecting part.

[0016] Furthermore, the swing mechanism includes a first swing arm and a second swing arm. One end of the first swing arm and the second swing arm is a hinge arm connection end, and the other end is a hinge cup connection end. The second swing arm is also provided with a transmission connection part for connecting with the transmission arm. The first swing arm and the second swing arm form a four-bar linkage through the hinge arm connection end and the hinge cup connection end. The two hinge arm connection ends are distributed front and back and are nearly flush in height. The side of the first swing arm near the hinge cup connection end has a positioning corner that bends downward and backward. In this solution, the four-bar linkage has two states: open and closed. When open, the hinge cup connection end of the first swing arm is located below the hinge cup connection end of the second swing arm; when closed, the hinge cup connection end of the first swing arm is located above the hinge cup connection end of the second swing arm. Compared with the prior art, the transmission mechanism of this utility model is installed on a recessed hinge. During assembly, the transmission mechanism needs to be rotated 90 degrees along with the recessed hinge before being fixed to the side panel of the cabinet. Because the two hinge arms are distributed front and back at nearly the same height, with a small height difference, and the buffer device is placed horizontally, vertical space is saved, allowing the base to be compressed downwards, resulting in a flatter and thinner overall shape, thus reducing protrusion. Furthermore, the first swing arm in this design has a downward and backward positioning corner on the side near the hinge cup connection. Through the geometric design of this positioning corner, a larger door opening angle can be achieved within a limited swing space. In actual manufacturing, the positioning corner can be designed to be 100-120°, with the swing arm connection protruding forward from the cabinet. When the angle between the upper end of the receiving part and the swing arm connection is set to 175°, and the positioning corner is set to 115°, a 120° door opening angle can be achieved.

[0017] Furthermore, a drive mechanism is included, mounted on the connecting arm. The side of the buffer device abuts against the drive end of the drive mechanism. Upon receiving backward pressure, the buffer device moves backward as a whole, triggering the drive mechanism to provide a backward driving force for the buffer device. This solution adds a drive mechanism that works in conjunction with the buffer device. When the buffer device receives backward pressure, the drive mechanism provides it with a backward driving force, achieving automatic buffering and driving during the door closing process, reducing the force required for manual operation by the user. Especially when the door is close to closing, the two work together to automatically complete the closing action, requiring only a gentle push from the user.

[0018] Furthermore, it also includes an outer cover. The connecting flange has mounting holes, and a connecting slide rail is provided along the length of the outer top of the connecting flange. A groove is provided on the lower side of the outer cover to mate with the connecting slide rail. The outer cover and the base body are connected to the connecting slide rail via the groove. In this design, the hinge base is fixed to the side wall of the cabinet via the connecting flange, and the outer cover can conceal the connecting structure on the connecting flange, improving the appearance.

[0019] Another objective of this invention is to provide a recessed hinge, including a hinge cup and a hinge base.

[0020] Because this utility model uses the hinge base of the above-mentioned solution, it has all the advantages of the above-mentioned solution. Attached Figure Description

[0021] Figure 1 Structural breakdown of the hinge base Figure 1 ;

[0022] Figure 2 Structural breakdown of the hinge base Figure 2 ;

[0023] Figure 3 Schematic diagram of the hinge base Figure 1 ;

[0024] Figure 4 Schematic diagram of the hinge base Figure 2 ;

[0025] Figure 5 Schematic diagram of the connecting arm Figure 1 ;

[0026] Figure 6 Schematic diagram of the connecting arm Figure 2 ;

[0027] Figure 7 Schematic diagram of the connecting arm Figure 3 ;

[0028] Figure 8 This is a structural diagram of the base body;

[0029] Figure 9 A schematic diagram of the drive mechanism and the slider;

[0030] Figure 10 A schematic diagram of the transmission mechanism in the open state. Figure 1 ;

[0031] Figure 11 This is a schematic diagram of the transmission mechanism in the closed state;

[0032] Figure 12 A schematic diagram of the transmission mechanism in the open state. Figure 2 ;

[0033] Figure 13 A schematic diagram of the sunken hinge in the open position. Figure 1 ;

[0034] Figure 14 A schematic diagram of the sunken hinge in the open position. Figure 2 ;

[0035] Figure 15This is a schematic diagram of the sunken hinge in the closed state.

[0036] Figure 16 This is a cross-sectional view of the sunken hinge in the open position.

[0037] Label Explanation:

[0038] Hinge base 10, base body 1, base mounting part 11, base slide groove 111, top plate 12, connecting flange 121, first clearance hole 124, connecting slide rail 122, mounting hole 123, second clearance hole 125, connecting arm 2, receiving part 21, hinge arm receiving groove 211, drive mounting area 211a, buffer mounting area 211b, first positioning groove 2121, mounting shaft 213, buffer mounting part 214, second positioning groove 2141, elastic mounting part 212, swing arm connecting part 22, transmission mechanism 3, swing mechanism 31, first swing arm 311, positioning corner 3111, first section arm 311a, second section arm 311b, second swing arm 312, transmission connecting part 3121, third section arm 312a, fourth ... Segment arm 312b, buffer device 32, transmission arm 321, buffer cylinder 322, slider 323, recess 3231, connecting shaft 3232, pressure bearing groove 3233, first linear guide structure 41, first guide hole 411, first connecting hole 412, bolt 413, second linear guide structure 42, second guide hole 421, second connecting hole 422, connecting rod 423, drive mechanism 5, elastic element 51, first drive rod 52, second drive rod 53, outer cover 6, slide groove 61, X-axis adjustment unit 71, first round hole 711, X-axis adjustment hole 712, X-axis adjustment pin 713, Z-axis adjustment unit 72, second round hole 721, Z-axis adjustment hole 722, Z-axis adjustment pin 723, hinge cup 8, recessed hinge 9. Detailed Implementation

[0039] The specific embodiments of this utility model are described below with reference to the accompanying drawings. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] See Figure 1-16As shown, this utility model discloses a hinge base 10, including a base body 1, a connecting arm 2, and a transmission mechanism 3. The base body 1 includes an integrally formed base mounting part 11 and a top plate 12. The base mounting part 11 includes a recessed base groove 111 with an open front end. The top plate 12 is connected to the upper end of the base mounting part 11 to close the upper end of the base groove 111. The top plate 12 is flush with the front end of the base groove 111, and the connecting flange is U-shaped, with the opposite sides extending radially outward to form a connecting flange 121. The connecting arm 2 is slidably mounted on the base groove 111, with its front end protruding from the base groove 111. The transmission mechanism 3 is mounted on the connecting arm 2.

[0041] The aforementioned base mounting part 11 and top plate 12 are integrally formed by die casting.

[0042] The shape of the connecting arm 2 is adapted to the base slide groove 111, and a linear guide structure is provided between the connecting arm 2 and the base slide groove 111.

[0043] See Figure 2 , 4 As shown in Figures 7-8, a first linear guide structure 41 is provided between the bottom of the base slide 111 and the connecting arm 2. The first linear guide structure 41 includes a first guide hole 411 and a first connecting hole 412. The first guide hole 411 is arranged in the length direction of the connecting arm 2 and is located on one of the base slide 111 and the connecting arm 2. The first connecting hole 412 is located on the other one of the two. The first guide hole 411 and the first connecting hole 412 are connected by a bolt 413. The top plate 12 is provided with a second clearance hole 125 corresponding to the first linear guide structure 41. Furthermore, a second linear guide structure 42 is provided between the base slide groove 111 and the opposite sides of the connecting arm 2. The second linear guide structure 42 includes a second guide hole 421 and a second connecting hole 422. The second guide hole 421 is arranged along the length direction of the connecting arm 2 and is located on one of the base slide groove 111 and the connecting arm 2. The second connecting hole 422 is arranged on the other. The second guide hole 421 and the second connecting hole 422 are connected by a connecting rod 423.

[0044] See Figure 1 , 11 As shown in Figure 13, the transmission mechanism 3 includes a swing mechanism 31 and a buffer device 32. The connecting arm 2 and the hinge cup 8 are connected through the swing mechanism 31. The buffer device 32 includes a horizontally arranged transmission arm 321, a buffer cylinder 322, and a slider 323. The front and rear ends of the slider 323 are respectively connected to the buffer cylinder 322 and the transmission arm 321. The transmission arm 321 is connected to the rear side of the swing mechanism 31. When the swing mechanism 31 swings, the transmission arm 321 drives the slider 323 to perform horizontal reciprocating motion and causes the slider 323 to selectively trigger the buffer cylinder 322.

[0045] The aforementioned connecting arm 2 includes a receiving portion 21 and a swing arm connecting portion 22. The receiving portion 21 is designed as a U-shaped structure that is adapted to the base slide groove 111, and a hinge arm receiving groove 211 is formed on its inner side. A buffer device 32 is provided on the hinge arm receiving groove 211. The swing arm connecting portion 22 is provided at the front end of the receiving portion 21, and the swing mechanism 31 is assembled on the swing arm connecting portion 22.

[0046] See Figure 10-12 As shown, the aforementioned swing mechanism 31 includes a first swing arm 311 and a second swing arm 312. One end of the first swing arm 311 and the second swing arm 312 is a hinge arm connection end, and the other end is a hinge cup connection end. The second swing arm 312 is also provided with a transmission connection part 3121 for connecting with the transmission arm 321. The first swing arm 311 and the second swing arm 312 form a four-bar linkage through the hinge arm connection end and the hinge cup connection end. The two hinge arm connection ends are distributed front and back and are nearly flush in height. The side of the first swing arm 311 near the hinge cup connection end is provided with a positioning corner 3111 that bends downward and backward. In this design, the four-bar linkage has two states: open and closed. When open, the hinge cup connection end of the first swing arm 311 is located below the hinge cup connection end of the second swing arm 311; when closed, the hinge cup connection end of the first swing arm 311 is located above the hinge cup connection end of the second swing arm 312. Compared with the prior art, the transmission mechanism 3 of this utility model is installed on the recessed hinge 9. During assembly, the transmission mechanism 3 needs to be rotated 90 degrees along with the recessed hinge 9 and then fixed to the side panel of the cabinet. Since the two hinge arm connection ends are distributed front and back and are almost flush at the same height, the height difference is small, and the buffer device 32 is placed horizontally, which can save vertical space, allowing the base to be compressed downward, resulting in a flatter and thinner overall shape, thereby reducing protrusion. In this solution, the first swing arm 311 has a downward and backward positioning corner 3111 on the side near the hinge cup connection end. Through the geometric design of the positioning corner 3111, a larger door opening angle can be achieved within the limited swing space, so that the door opening angle can reach 120°.

[0047] See Figure 16 As shown, the first swing arm 311 has a downward and backward positioning corner 3111 on the side near the hinge cup connection end. Through the geometric design of the positioning corner 3111, a larger door opening angle can be achieved within the limited swing space. In actual manufacturing, the positioning corner 3111 can be designed to be 100-120°. The swing arm connection part 22 protrudes forward from the cabinet. When the angle between the accommodating part 21 and the upper end of the swing arm connection part 22 is set to 175° and the positioning corner 3111 is set to 115°, the door can be opened to 120°.

[0048] The front end of the slider 323 is provided with a recess 3231, and a connecting shaft 3232 is provided at the recess 3231. One end of the transmission arm 321 is sleeved on the connecting shaft 3232.

[0049] The hinge arm connecting end and hinge cup connecting end of the first swing arm 311 and the second swing arm 312 are axial. The hinge arm connecting end of the first swing arm 311 and the hinge cup connecting end are connected by a first connecting rib, and the hinge arm connecting end of the second swing arm 312 and the hinge cup connecting end are connected by a second connecting rib. The first connecting rib includes a first arm section 311a connected to the hinge arm connecting end and a second arm section 311b connected to the hinge cup connecting end. The front end of the first arm section 311a is connected to the upper end of the second arm section 311b and forms a positioning corner 3111. The second connecting rib includes a third arm section 312a connected to the hinge arm connecting end and a fourth arm section 312b connected to the hinge cup connecting end. The rear ends of the third arm section 312a and the fourth arm section 312b are connected. The transmission connection part 3121 is a connecting ear provided on both sides of the lower end of the third arm section 312a.

[0050] The shape of the aforementioned positioning corner 3111 is adapted to the hinge cup connection end of the second swing arm 312, and the sum of the lengths of the fourth arm 312b and the hinge cup connection end of the second swing arm 312 is equal to the length of the second arm 311b.

[0051] The length of the third arm 312a is less than the length of the fourth arm 312b, which makes the transmission connection end eccentrically designed.

[0052] The second swing arm 312 has a low-curvature arc design, and the shapes of the first arm 311a, the second arm 311b, and the fourth arm 312b are compatible.

[0053] See Figure 9 As shown, the aforementioned base assembly also includes a drive mechanism 5, which is mounted on the connecting arm 2. The side of the buffer device 32 abuts against the drive end of the drive mechanism 5. When subjected to backward pressure, the buffer device 32 moves backward as a whole, triggering the drive mechanism 5, which then provides a backward driving force to the buffer device 32. This solution adds a drive mechanism 5 to work in conjunction with the buffer device 32. When the buffer device 32 is subjected to backward pressure, the drive mechanism 5 provides it with a backward driving force, achieving automatic buffering and driving during the door closing process, reducing the force required for manual operation by the user. Especially when the door is close to closing, the two work together to automatically complete the closing action, requiring only a gentle push from the user.

[0054] The aforementioned drive mechanism 5 includes an elastic element 51, a first drive rod 52, and a second drive rod 53. The left and right sides of the hinge arm receiving groove 211 are respectively set as drive mounting area 211a and buffer mounting area 211b. The front part of the drive mounting area 211a is provided with an inclined elastic mounting part 212, and the elastic mounting part 212 is provided with a first positioning groove 2121. The middle part of the drive mounting area 211a is provided with a mounting shaft 213. One end of the first drive rod 52 and the second drive rod 53 is hinged to form a V-shaped rocker mechanism, and the bottom of the linkage mechanism is its drive part. The elastic element 51 is sleeved on the second drive rod 53. The slider 323 is adapted to the drive part and is provided with a pressure-bearing groove 3233. The drive part abuts against the rear side wall of the slider 323, and the pressure-bearing groove 3233 is located on the front side of its drive part.

[0055] See Figure 13-15 As shown, the aforementioned base assembly also includes an outer cover 6. A mounting hole 123 is provided on the connecting flange 121, and a connecting slide rail 122 is provided along the length direction on the outer top of the connecting flange 121. A groove 61 is provided on the lower side of the outer cover 6 to cooperate with the connecting slide rail 122. The outer cover 6 and the base body 1 are connected to the connecting slide rail 122 via the groove 61. In this design, the hinge base 10 is fixed to the side wall of the cabinet via the connecting flange 121. The outer cover 6 can conceal the connecting structure on the connecting flange 121, improving the appearance.

[0056] The rear of the aforementioned hinge arm receiving groove 211 is provided with a buffer mounting part 214, and the buffer mounting part 214 is provided with a second positioning groove 2141, and the cylinder body of the buffer cylinder is assembled on the second positioning groove 2141.

[0057] In this invention, the base mounting part 11 and the top plate 12 are integrally molded, eliminating the need for intermediate adjustment components, thereby reducing the number of parts, effectively lowering material and processing costs, and compressing space. The base slide 111 adopts a multi-faceted closed box-shaped structure with an open front end, ensuring that the connecting arm 2 can only be pushed in horizontally for installation, preventing vibration and misoperation from causing it to come off from a direction other than the front end, and significantly improving the overall resistance to deformation. This design makes the base structure neat and simple, with a thickness controlled at 6-8mm. After installation, the surface is flush with the side wall of the cabinet, meeting the minimalist aesthetic needs of modern homes and avoiding the problem of clothing snagging caused by the protrusion of traditional hinges. Compared with the prior art, the hinge base 10 of this invention is compatible with automated production through standardized design, making it particularly suitable for high-end custom furniture and mass-produced cabinet manufacturing, improving product reliability and aesthetics while reducing costs.

[0058] See Figure 13-16 As shown, this utility model also discloses a recessed hinge 9, including a hinge cup 8 and a hinge base 10. Because this utility model applies the hinge base 10 of the above-described solution, it possesses all the advantages of the aforementioned solution.

[0059] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A hinge base (10), characterized in that, include: The base body (1) includes an integrally formed base mounting part (11) and a top plate (12). The base mounting part (11) includes a recessed base groove (111) with an open front end. The top plate (12) is connected to the upper end of the base mounting part (11) to close the upper end of the base groove (111), and its edge extends radially outward to form a connecting flange (121). The connecting arm (2) is slidably mounted on the base slide groove (111) and its front end protrudes from the base slide groove (111); The transmission mechanism (3) is located on the connecting arm (2).

2. The hinge base (10) according to claim 1, characterized in that, The top plate (12) is flush with the front end of the base slide groove (111), and the connecting protrusion (121) is U-shaped.

3. The hinge base (10) according to claim 1, characterized in that, The shape of the connecting arm (2) is adapted to the base slide groove (111), and a linear guide structure is provided between the connecting arm (2) and the base slide groove (111).

4. The hinge base (10) according to claim 1, characterized in that, A dimension adjustment structure is provided between the connecting arm (2) and the base body, and a first clearance hole (124) is provided on the top plate (12) corresponding to the dimension adjustment structure.

5. The hinge base (10) according to claim 1, characterized in that, A first linear guide structure (41) is provided between the bottom of the base slide (111) and the connecting arm (2). The first linear guide structure (41) includes a first guide hole (411) and a first connecting hole (412). The first guide hole (411) is arranged along the length direction of the connecting arm (2) and is located on one of the base slide (111) and the connecting arm (2). The first connecting hole (412) is located on the other one of the two. The first guide hole (411) and the first connecting hole (412) are connected by a bolt (413). The top plate (12) is provided with a second clearance hole (125) corresponding to the first linear guide structure (41). And / or, a second linear guide structure (42) is provided between the base slide (111) and the opposite sides of the connecting arm (2). The second linear guide structure (42) includes a second guide hole (421), a second connecting hole (422) and a connecting rod (423). The second guide hole (421) is provided along the length direction of the connecting arm (2) and is located on one of the base slide (111) and the connecting arm (2). The second connecting hole (422) is provided on the other side. The connecting rod (423) passes through the second guide hole (421) and the second connecting hole (422) on both sides.

6. The hinge base (10) according to claim 1, characterized in that, The transmission mechanism (3) includes a swing mechanism (31) and a buffer device (32). The connecting arm (2) is connected to the hinge cup (8) through the swing mechanism (31). The buffer device (32) includes a horizontally arranged transmission arm (321), a buffer cylinder (322), and a slider (323). The front and rear ends of the slider (323) are respectively connected to the buffer cylinder (322) and the transmission arm (321). The transmission arm (321) is connected to the rear side of the swing mechanism (31). When the swing mechanism (31) swings, the transmission arm (321) drives the slider (323) to make horizontal reciprocating motion and causes the slider (323) to selectively trigger the buffer cylinder (322).

7. The hinge base (10) according to claim 6, characterized in that, The swing mechanism (31) includes a first swing arm (311) and a second swing arm (312). One end of the first swing arm (311) and the second swing arm (312) is a hinge arm connection end, and the other end is a hinge cup connection end. The second swing arm (312) is also provided with a transmission connection part (3121) for connecting with the transmission arm (321). The first swing arm (311) and the second swing arm (312) form a four-bar linkage through the hinge arm connection end and the hinge cup connection end. The two hinge arm connection ends are distributed front and back and are close to the same height. The first swing arm (311) has a positioning corner (3111) that bends downward and backward on the side near the hinge cup connection end.

8. The hinge base (10) according to claim 6, characterized in that, It also includes a drive mechanism (5), which is mounted on the connecting arm (2). The side of the buffer device (32) abuts against the drive end of the drive mechanism (5). When subjected to backward pressure, the buffer device (32) moves backward as a whole and triggers the drive mechanism (5), so that the drive mechanism (5) provides a driving force for the buffer device (32) to move backward.

9. The hinge base (10) according to claim 1, characterized in that, It also includes an outer cover (6), on which a mounting hole (123) is provided, and a connecting slide rail (122) is provided on the outer top of the connecting protrusion (121) along the length direction. The lower side of the outer cover (6) is provided with a sliding groove (61) to cooperate with the connecting slide rail (122). The outer cover (6) and the base body (1) are connected to the connecting slide rail (122) through the sliding groove (61).

10. A recessed hinge (9), characterized in that, Includes a hinge cup (8) and a hinge base (10) according to any one of claims 1-9.

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