CN211287175U

CN211287175U - Quick fastening structure for base of furniture hinge

Info

Publication number: CN211287175U
Application number: CN201921578339.4U
Authority: CN
Inventors: 伍志勇
Original assignee: Guangdong DTC Hardware Precision Manufacturing Co Ltd
Current assignee: Guangdong DTC Hardware Precision Manufacturing Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-08-18
Anticipated expiration: 2029-09-20

Abstract

A quick fastening structure for a base of a furniture hinge comprises a connecting arm, wherein a hinge assembly is arranged on the connecting arm, a hinge cup is hinged and opened and closed through the hinge assembly, a fastening piece is elastically rotated or swung on the connecting arm, and the connecting arm is detachably connected with the base through the elastic rotation or swing of the fastening piece; the buckling piece is formed by stamping a metal plate, the left side and the right side of the buckling piece are bent towards the same direction to form a U-shaped left side wall and a U-shaped right side wall, opening buckling parts are arranged on the U-shaped left side wall and the U-shaped right side wall and are detachably matched and connected with the base through the opening buckling parts, a handle part for driving the buckling piece to elastically rotate or swing is bent towards the opposite direction of the U-shaped left side wall and the U-shaped right side wall in the middle of the buckling piece, and a separation positioning part for elastically rotating or swinging and positioning when the buckling piece is separated from the base is bent. The utility model discloses an above-mentioned structure's improvement, the practicality is strong.

Description

Quick fastening structure for base of furniture hinge

Technical Field

The utility model relates to a quick lock joint structure of base of furniture hinge.

Background

Chinese patent document No. CN200946416Y discloses a hidden iron chain for furniture door in 2007, 9/12.9.2007, which includes a fixed base fixed on the door frame, a movable base fixed on the door body, and a steel connecting arm connected therebetween, the fixed base is composed of an adjustable bottom plate and a fixed plate, and is characterized in that the adjustable bottom plate formed by stamping is a T-shaped or a middle-shaped shell, and the edge folding edge of the adjustable bottom plate extends inward to form a limit tongue piece or/and a limit convex part; the punch-formed fixing plate is a rectangular shell, and a notch matched with the limiting tongue piece or/and the limiting convex part is arranged on the edge folding edge of the fixing plate; the adjustable bottom plate is in sliding fit with the fixed plate, and more than one limiting tongue piece is oppositely arranged on two sides of the edge of the adjustable bottom plate; more than one limiting convex part is oppositely arranged on two sides of the edge of the adjustable bottom plate. When the hidden iron chain of the furniture door with the structure is connected with the common ejection arm, the hidden iron chain has the characteristics of low processing cost, rapidness and convenience in assembly and disassembly; however, the connection mode of the fixing base and the iron connection arm is unreasonable, the structure is complex, and the requirements of users on quick assembly and disassembly of the fixing base and the iron connection arm cannot be met. Therefore, further improvements are necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is reasonable, the dependable performance, and it is nimble to adjust, low in manufacturing cost, long service life, easy production, easy realization, the exquisite and high quick lock joint structure of base of furniture hinge of security of outward appearance to overcome the weak point among the prior art.

According to the quick fastening structure of base of furniture hinge of this purpose design, including the linking arm, be provided with articulated subassembly on the linking arm, and there is the hinge cup through the articulated switching of articulated subassembly, its characterized in that: the connecting arm is elastically rotated or swung with a fastener and is detachably connected with a base through the elastic rotation or swing of the fastener; the buckling piece is formed by stamping a metal plate, the left side and the right side of the buckling piece are bent towards the same direction to form a U-shaped left side wall and a U-shaped right side wall, opening buckling parts are arranged on the U-shaped left side wall and the U-shaped right side wall and are detachably matched and connected with the base through the opening buckling parts, a handle part for driving the buckling piece to elastically rotate or swing is bent towards the opposite direction of the U-shaped left side wall and the U-shaped right side wall in the middle of the buckling piece, and a separation positioning part for elastically rotating or swinging and positioning when the buckling piece is separated from the base is bent at least.

The connecting arm is provided with an intermediate element, the intermediate element is U-shaped, the front end of the intermediate element is provided with an opening part which is mutually clamped with a front buckling part arranged at the front end of the base, and the rear end of the intermediate element is provided with an intermediate through hole; the buckling piece is positioned at the U-shaped rear end of the middle element, and buckling through holes are formed in the left and right U-shaped side walls of the buckling piece, and a connecting shaft is arranged between the buckling through holes and the middle through hole in a penetrating manner; the buckling piece rotates or swings at the rear end of the intermediate element through the connecting shaft, and is buckled or separated with a rear buckling part arranged at the rear end of the base through the opening buckling part when rotating or swinging, so that the intermediate element is matched with the base in a quick assembling and disassembling mode.

The connecting shaft is provided with an elastic piece which is positioned between the U-shaped left side wall and the U-shaped right side wall, one end of the elastic piece elastically acts on the middle element or the connecting arm, and the other end of the elastic piece elastically acts on the buckling piece; the fastener is elastically rotated or swung at the rear end of the middle element through the matching of the connecting shaft and the elastic piece.

The handle part is bent and formed towards the opposite direction of the U-shaped left side wall and the U-shaped right side wall, and the inner side of the handle part and the buckling piece form an inner step position; the separation positioning part is bent and formed towards the direction of the left side wall and the right side wall of the U shape, or the direction of the connecting arm, or the direction of the middle element, or the direction of the elastic element, and forms an outer step position with the outer side of the handle part; the elastic part elastically acts on the inner step position, or the separation positioning part, or the U-shaped left side wall and the U-shaped right side wall; the outer step, or the outside of the handle, is acted upon by a tool or manually and turned or swung at the rear end of the intermediate element by a fastener.

The elastic part is a torsion spring, one end of the elastic part is provided with a first elastic action part and an elastic action of the middle element, the middle part of the elastic part is provided with an elastic through hole which is matched and connected with the connecting shaft, and the other end of the elastic part is provided with a second elastic action part and an elastic action of the inner step position, wherein at least part of the first elastic action part is shielded by the middle element, and at least part of the second elastic action part is shielded by the handle part and the separation positioning part; the buckling piece is matched with the connecting shaft and the elastic piece to elastically rotate or swing towards the front end of the middle element; the buckling piece is positioned and buckled with the rear buckling part through the opening buckling part when rotating anticlockwise or swinging, and the buckling piece is separated from the rear buckling part through the opening buckling part when rotating clockwise or swinging.

The opening direction of the opening buckling part is arranged towards the front end of the middle element, and a guide part is arranged between the lower part of the opening buckling part and the rear buckling part; the buckling piece and the rear buckling part are mutually guided and buckled through the guide part.

The buckling through hole, the handle part and the separation positioning part are positioned above the buckling part of the opening.

The first elastic action part and/or the second elastic action part are/is also provided with a zigzag position, elastically act with the middle element and/or the inner step position through the zigzag position, and are at least partially shielded by the middle element and/or the handle part and the separation positioning part.

The U-shaped left side wall and the U-shaped right side wall are respectively bent outwards to form buckling and positioning parts, and the buckling and positioning parts are positioned above the buckling and connecting parts of the openings and form positioning steps with the U-shaped left side wall and the U-shaped right side wall; a certain gap L1 is formed between the outer side of the buckling and positioning part and the U-shaped inner wall of the middle element, and a certain gap L2 is formed between the left and right U-shaped side walls and the inner wall of the base, wherein the size of the gap L1 is smaller than that of the gap L2; the buckling piece is positioned on the middle element through the separation positioning part when rotating clockwise or swinging; the buckling piece is positioned on the buckling positioning matching part of the U-shaped inner wall of the middle element through the buckling positioning part when rotating anticlockwise or swinging, and/or the buckling piece is positioned through the opening buckling part and buckled on the rear buckling part of the base when rotating anticlockwise or swinging.

The connecting arm is U-shaped, and an assembling shaft is transversely arranged on the connecting arm; the middle element is arranged in the U shape of the connecting arm, the side wall of the middle element is provided with a notch part, and the assembling shaft is arranged on the connecting arm and the notch part; the top of the connecting arm is provided with a front and rear adjusting piece, the front and rear adjusting piece is positioned and rotated at the top of the connecting arm and acts on the intermediate element when positioned and rotated, and the connecting arm and the intermediate element are driven to move front and rear through the matching of the assembling shaft and the notch part, so that the front and rear position adjustment between the connecting arm and the intermediate element is realized.

The top of the connecting arm is also provided with an upper adjusting part and a lower adjusting part, and the top of the intermediate element is also provided with an opening groove part and is in driving connection with the upper adjusting part and the lower adjusting part through the opening groove part; the upper and lower adjusting parts are positioned and rotated at the top of the connecting arm, and act through the opening groove part and drive the intermediate element to move up and down in the connecting arm when positioned and rotated, so that the upper and lower position adjustment between the connecting arm and the intermediate element is realized.

The hinge assembly comprises an outer hinge arm and an inner hinge arm, one end of the outer hinge arm and one end of the inner hinge arm are respectively hinged with the hinge cup, and the other end of the outer hinge arm and the other end of the inner hinge arm are respectively hinged with the connecting arm; the connecting arm, or the intermediate element, or the hinge cup is provided with a damper which is an oil pressure damper or an air pressure damper and is matched with the inner hinge arm to generate a buffering effect at least when the furniture hinge is hinged and closed, or a connector rotationally or swingably arranged on the connecting arm is matched with the inner hinge arm to generate a buffering effect so as to realize the damping hinge and closure between the connecting arm and the hinge cup; the position where the outer hinge arm is hinged with the connecting arm is also provided with a hinge elastic element which generates hinge closing force at least when the furniture hinge is hinged and closed.

The utility model discloses an improvement of above-mentioned structure, compared with the prior art, has following advantage:

1. the connecting arm is provided with an intermediate element, the front end of the intermediate element is mutually clamped with the front buckling part at the front end of the base through the opening part, and the rear end of the intermediate element is mutually buckled or separated with the rear buckling part at the rear end of the base through the buckling piece so as to realize the quick assembly and disassembly matching of the intermediate element and the base.

2. The fastener is formed by the integrative stamping of panel beating, an organic whole is provided with opening buckling part on it, handle portion, break away from location portion, the lock joint through-hole, lock joint location portion, therefore not only reduced the cost of manufacture of fastener effectively, can also improve its overall structure intensity, also can improve its assembly stability with the base simultaneously, make the assembly of intermediate element and base more firm, and the fastener is located the intermediate element rear end, and because opening buckling part, handle portion, break away from location portion, the lock joint through-hole, the position that the lock joint part protrudes the intermediate element rear end is less, can reduce the overall length of furniture hinge effectively, reduce the spatial position that furniture hinge assembly can occupy when furniture, in order to improve the parking space of furniture.

3. Be provided with between fastener and the intermediate member and be used for the two to rotate or swing spacing position, the user can expect the rotation or the swing position of fastener through this spacing position when using to improve user's use and experience, can also avoid fastener excessively to rotate or swing the problem that influences hinge stability in use.

4. The elastic component passes through the elasticity through-hole and is connected with the connecting axle cooperation, can improve the assembly stability of elastic component, and be provided with tortuous position on the elastic component, this tortuous position is horizontal setting, not only can further improve the assembly stability and the elastic force of elastic component, make the elastic force that its produced concentrate more, can also avoid its problem that displacement or elastic force became invalid when furniture hinge switching simultaneously, reduce its pressure that is used in the intermediate element, the fastener, the life of extension furniture hinge, can also prevent elastic component scratch user simultaneously, make user's use safer.

5. The size of a gap L1 formed between the outer side of the buckling and positioning part and the U-shaped inner wall of the middle element is smaller than that of a gap L2 formed between the U-shaped left and right side walls and the inner wall of the base, so that the buckling piece can be stably assembled at the U-shaped rear end of the middle element, the problem that the buckling piece is displaced or buckled and disabled with the base when the furniture hinge is opened and closed is avoided, and the assembling accuracy of the buckling piece and the buckling stability of the base are improved.

6. The first elastic action part and the second elastic action part of the elastic part are at least partially shielded by the intermediate element, the handle part of the fastener and the separation positioning part, so that a user cannot see the elastic part and cannot be scratched by the elastic part when using the elastic part, the use safety of the user is further improved, and the use stability of the elastic part is ensured.

7. The buckling piece is mutually separated from the back buckling part through the opening buckling part when rotating clockwise or swinging, and is mutually buckled with the back buckling part through the opening buckling part when rotating anticlockwise or swinging, so that a user only needs to upwards act on the outer step position or the outer side of the handle part when disassembling and assembling the base, the disassembly between the middle element and the base can be realized, the use convenience of a user can be improved, the user can have various function choices, meanwhile, the upward acting force is applied quickly, conveniently and easily, the user can conveniently detach and use the middle element and the base, during assembly, the user only needs to press the middle element or the connecting arm, the buckling piece and the rear buckling part can be mutually guided and buckled through the guiding part, the pressing force is applied quickly, conveniently and easily, and the force is small, so that the force used when the user assembles the intermediate element and the base is reduced, and the use of the user is further facilitated.

8. The hinge is characterized in that a front-back adjusting piece and an upper-lower adjusting piece are further arranged between the connecting arm and the middle element, front-back and upper-lower position adjustment can be realized between the connecting arm and the middle element through the front-back adjusting piece and the upper-lower adjusting piece, the whole attractiveness of the hinge can be improved, the hinge is more convenient to use, and the connection compactness among all components can be improved.

In summary, the adjustable type safety door has the advantages of being simple and reasonable in structure, reliable in performance, flexible in adjustment, low in manufacturing cost, long in service life, easy to produce, easy to achieve, exquisite in appearance, high in safety and the like, and is high in practicability.

Drawings

Fig. 1 is an exploded schematic view of a first embodiment of the present invention.

Fig. 2 is a schematic view of an assembly structure according to a first embodiment of the present invention.

Fig. 3 is an assembly structure diagram (side view) of the first embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5-7 are schematic structural views illustrating a base assembling and disassembling process according to a first embodiment of the present invention.

Fig. 8 is a schematic structural view of a fastener according to a first embodiment of the present invention.

Fig. 9 is a schematic structural view (side view) of a fastener according to a first embodiment of the present invention.

Fig. 10-12 are schematic structural views of various applications of the elastic member according to the first embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 12, the base quick fastening structure of the furniture hinge comprises a connecting arm 1, wherein a hinge assembly is arranged on the connecting arm 1, a hinge cup 2 is hinged and opened and closed through the hinge assembly, a fastening piece 3 is elastically rotated or swung on the connecting arm 1, and a base 4 is detachably connected through the elastic rotation or swing of the fastening piece 3; wherein, fastener 3 is by panel beating stamping forming, lateral wall about its left and right sides is buckled to same direction and is constituted the U-shaped, be provided with opening buckle connection portion 5 about the U-shaped on the lateral wall, and through opening

buckle connection portion

5 and 4 detachable assembly be connected of base, buckle connection portion 3 middle part is buckled to lateral wall opposite direction about the U-shaped has and is used for driving fastener 3 elastic rotation or wobbling handle portion 6, handle portion 6 is buckled to lateral wall direction about the U-shaped at least, or 1 direction of linking arm has and is used for fastener 3 and base 4 to break away from when breaking away from elastic rotation or swing location's location portion 7.

The connecting arm 1 is provided with an intermediate element 8, the intermediate element 8 is U-shaped, the front end of the intermediate element is provided with an opening part 9 which is mutually clamped with a front buckling part 10 arranged at the front end of the base 4, and the rear end of the intermediate element 8 is provided with an intermediate through hole 11; the buckling piece 3 is positioned at the U-shaped rear end of the middle element 8, buckling through holes 12 are formed in the left and right U-shaped side walls of the middle element, and a connecting shaft 13 penetrates between the buckling through holes 12 and the middle through hole 11; the fastener 3 rotates or swings at the rear end of the intermediate element 8 through the connecting shaft 13, and is fastened or separated with a rear fastening part 14 arranged at the rear end of the base 4 through the opening fastening part 5 during rotation or swing, so that the intermediate element 8 and the base 4 can be quickly assembled and disassembled.

The connecting shaft 13 is provided with an elastic piece 15, the elastic piece 15 is positioned between the left side wall and the right side wall of the U shape, one end of the elastic piece 15 elastically acts on the middle element 8 or the connecting arm 1, and the other end elastically acts on the buckling piece 3; the fastener 3 is elastically rotated or swung at the rear end of the intermediate element 8 through the matching of the connecting shaft 13 and the elastic piece 15.

The handle part 6 is bent and formed towards the opposite direction of the U-shaped left and right side walls, and the inner side of the handle part and the buckling piece 3 form an inner step 16; the separation positioning part 7 is bent and molded towards the direction of the U-shaped left and right side walls, or the direction of the connecting arm 1, or the direction of the middle element 8, or the direction of the elastic element 15, and forms an outer step position 17 with the outer side of the handle part 6; the elastic piece 15 elastically acts on the inner step position 16, the separation positioning part 7, the U-shaped left side wall and the U-shaped right side wall; the outer step 17, or the outside of the handle 6, is acted upon by a tool or manually and is turned or pivoted by the catch 3 at the rear end of the intermediate element 8.

As shown in fig. 10, the elastic member 15 is a torsion spring, one end of the elastic member is provided with a first elastic acting portion 18 for elastically acting with the intermediate element 8, the middle portion of the elastic member 15 is provided with an elastic through hole 19 for matching and connecting with the connecting shaft 13, the other end of the elastic member 15 is provided with a second elastic acting portion 20 for elastically acting with the inner step position 16, wherein the first elastic acting portion 18 is at least partially shielded by the intermediate element 8, and the second elastic acting portion 20 is at least partially shielded by the handle portion 6 and the disengagement positioning portion 7; the fastener 3 elastically rotates or swings towards the front end of the middle element 8 through the matching of the connecting shaft 13 and the elastic piece 15; the buckling piece 3 is positioned and buckled with the rear buckling part 14 through the opening buckling part 5 when rotating anticlockwise or swinging, and the buckling piece 3 is separated from the rear buckling part 14 through the opening buckling part 5 when rotating clockwise or swinging.

The opening direction of the opening buckling part 5 is arranged towards the front end of the middle element 8, and a guide part 21 is arranged between the lower part of the opening buckling part and the rear buckling part 14; the fastener 3 and the rear fastening part 14 are guided and fastened with each other by the guide part 21.

The buckling through hole 12, the handle part 6 and the disengagement positioning part 7 are positioned above the opening buckling part 5.

As shown in fig. 11, the second elastic operation portion 20 is further provided with a bent portion 22, and elastically operates with the inner step portion 16 through the bent portion 22, and is at least partially shielded by the grip portion 6 and the disengagement positioning portion 7.

Alternatively, as shown in fig. 12, the first elastic operation portion 18 is further provided with a meandering position 22, and elastically operates with the inner top intermediate position of the intermediate element 8 through the meandering position 22, and is at least partially shielded by the intermediate element 8.

Further alternatively, the first elastic operation portion 18 and the second elastic operation portion 20 are respectively provided with a meandering position 22, and elastically operate with the inner top intermediate position and the inner step position 16 of the intermediate member 8 through the meandering position 22, respectively, and are at least partially shielded by the intermediate member 8, the grip portion 6, and the disengagement positioning portion 7.

Buckling and positioning parts 23 are respectively bent outwards on the left side wall and the right side wall of the U shape, the buckling and positioning parts 23 are positioned above the opening buckling part 5, and positioning steps are formed between the buckling and positioning parts and the left side wall and the right side wall of the U shape; a certain gap L1 is formed between the outer side of the buckling and positioning part 23 and the U-shaped inner wall of the middle element 8, and a certain gap L2 is formed between the left and right U-shaped side walls and the inner wall of the base 4, wherein the size of the gap L1 is smaller than that of the gap L2; the fastener 3 is positioned on the middle element 8 through the separation positioning part 7 when rotating or swinging clockwise; the fastener 3 is positioned on the fastening positioning matching part 24 of the U-shaped inner wall of the middle element 8 through the fastening positioning part 23 when rotating or swinging anticlockwise, and/or the fastener 3 is positioned and fastened on the rear fastening part 14 of the base 4 through the opening fastening part 5 when rotating or swinging anticlockwise.

The connecting arm 1 is U-shaped, and an assembly shaft 25 is transversely arranged on the connecting arm; the intermediate element 8 is arranged in the U-shape of the connecting arm 1, and the side wall thereof is provided with a notch 26, and the assembling shaft 25 is arranged on the connecting arm 1 and the notch 26; the top of the connecting arm 1 is provided with a front-back adjusting piece 27, the front-back adjusting piece 27 is positioned and rotated on the top of the connecting arm 1 and acts on the intermediate element 8 during positioning and rotation, and drives the connecting arm 1 and the intermediate element 8 to move back and forth through the matching of the assembling shaft 25 and the notch part 26 so as to realize front-back position adjustment between the connecting arm 1 and the intermediate element 8.

The top of the connecting arm 1 is also provided with an upper and lower adjusting piece 28, the top of the middle element 8 is also provided with an opening groove part 29, and the opening groove part 29 is in driving connection with the upper and lower adjusting piece 28; the up-down adjusting piece 28 is positioned and rotated on the top of the connecting arm 1, and acts through the opening groove part 29 during the positioning and rotation and drives the middle element 8 to move up and down in the connecting arm 1 so as to realize the up-down position adjustment between the connecting arm 1 and the middle element 8.

The hinge assembly comprises an outer hinge arm 30 and an inner hinge arm 31, one end of the outer hinge arm 30 and one end of the inner hinge arm 31 are respectively hinged with the hinge cup 2, and the other end of the outer hinge arm 30 and the other end of the inner hinge arm 31 are respectively hinged with the connecting arm 1; the connecting arm 1, the intermediate element 8 or the hinge cup 2 is provided with a damper 32, the damper 32 is an oil pressure damper or an air pressure damper, and at least cooperates with the inner hinge arm 31 to generate a buffer action when the furniture hinge is hinged and closed, or cooperates with the inner hinge arm 31 to generate a buffer action through an adapter 33 which is rotatably or swingably arranged on the connecting arm 1, so as to realize the damping hinge and closure between the connecting arm 1 and the hinge cup 2; the outer hinge arm 30 is also provided with a hinge spring 34, which generates a hinge closing force at least when the furniture hinge is closed.

The drawings are for illustrative purposes only and are presented in the form of illustrations only, not illustrations as physical or logical, and should not be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Moreover, like or similar reference numerals in the drawings of the embodiments of the present invention correspond to like or similar parts; in the description of the present invention, it should be understood that, if there are any terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "longitudinal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is for convenience and simplicity, and it is not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present patent.

Claims

1. The utility model provides a quick lock joint structure of base of furniture hinge, includes linking arm (1), is provided with articulated subassembly on linking arm (1), and has hinge cup (2), its characterized in that through the articulated switching of articulated subassembly: the connecting arm (1) is elastically rotated or swung with a fastener (3) and is detachably connected with a base (4) through the elastic rotation or swing of the fastener (3); wherein, fastener (3) are by panel beating stamping forming, the lateral wall about its left and right sides is buckled to same direction and is constituted the U-shaped, be provided with opening buckling part (5) about the U-shaped on the lateral wall, and through opening buckling part (5) and base (4) detachable fit connection, fastener (3) middle part is buckled to the lateral wall opposite direction about the U-shaped has handle portion (6) that is used for driving fastener (3) elastic rotation or wobbling, handle portion (6) are at least to lateral wall direction about the U-shaped, or linking arm (1) direction is buckled has and is used for fastener (3) and base (4) when breaking away from elastic rotation or swing location's location portion (7).

2. The furniture hinge base quick fastening structure according to claim 1, wherein: the connecting arm (1) is provided with an intermediate element (8), the intermediate element (8) is U-shaped, the front end of the intermediate element is provided with an opening part (9) which is mutually clamped with a front buckling part (10) arranged at the front end of the base (4), and the rear end of the intermediate element (8) is provided with an intermediate through hole (11); the buckling piece (3) is positioned at the U-shaped rear end of the middle element (8), the U-shaped left side wall and the U-shaped right side wall of the middle element are provided with buckling through holes (12), and a connecting shaft (13) penetrates between the buckling through holes (12) and the middle through hole (11); the buckling piece (3) rotates or swings at the rear end of the intermediate element (8) through the connecting shaft (13), and is buckled or separated with a rear buckling part (14) arranged at the rear end of the base (4) through the opening buckling part (5) when rotating or swinging, so that the intermediate element (8) is matched with the base (4) in a quick assembling and disassembling mode.

3. The furniture hinge base quick fastening structure according to claim 2, wherein: the connecting shaft (13) is provided with an elastic piece (15), the elastic piece (15) is positioned between the U-shaped left side wall and the U-shaped right side wall, one end of the elastic piece (15) elastically acts on the middle element (8) or the connecting arm (1), and the other end of the elastic piece (15) elastically acts on the buckling piece (3); the buckling piece (3) is matched with the connecting shaft (13) and the elastic piece (15) to elastically rotate or swing at the rear end of the middle element (8).

4. The furniture hinge base quick fastening structure according to claim 3, wherein: the handle part (6) is bent and formed towards the opposite direction of the U-shaped left and right side walls, and the inner side of the handle part and the buckling piece (3) form an inner step position (16); the separation positioning part (7) is bent and molded towards the direction of the U-shaped left and right side walls, or the direction of the connecting arm (1), or the direction of the middle element (8), or the direction of the elastic piece (15), and forms an outer step position (17) with the outer side of the handle part (6); the elastic piece (15) elastically acts on the inner step position (16), or the separation positioning part (7), or the U-shaped left side wall and the U-shaped right side wall; the outer step (17), or the outside of the handle (6), is acted upon by a tool or manually and is turned or pivoted by the fastener (3) at the rear end of the intermediate element (8).

5. The furniture hinge base quick fastening structure according to claim 4, wherein: the elastic piece (15) is a torsion spring, one end of the elastic piece is provided with a first elastic action part (18) and an elastic action of the middle element (8), the middle part of the elastic piece (15) is provided with an elastic through hole (19) which is matched and connected with the connecting shaft (13), the other end of the elastic piece (15) is provided with a second elastic action part (20) and an elastic action of the inner step position (16), wherein at least part of the first elastic action part (18) is shielded by the middle element (8), and at least part of the second elastic action part (20) is shielded by the handle part (6) and the separation positioning part (7); the buckling piece (3) is matched with the connecting shaft (13) and the elastic piece (15) to elastically rotate or swing towards the front end of the middle element (8); the buckling piece (3) is positioned and buckled with the rear buckling part (14) through the opening buckling part (5) when rotating anticlockwise or swinging, and the buckling piece (3) is separated from the rear buckling part (14) through the opening buckling part (5) when rotating clockwise or swinging.

6. The furniture hinge base quick fastening structure according to claim 5, wherein: the opening direction of the opening buckling part (5) is arranged towards the front end of the middle element (8), and a guide part (21) is arranged between the lower part of the opening buckling part and the rear buckling part (14); the buckling piece (3) and the rear buckling part (14) are mutually guided and buckled through a guide part (21);

the buckling through hole (12), the handle part (6) and the separation positioning part (7) are positioned above the opening buckling part (5).

7. The furniture hinge base quick fastening structure according to claim 5, wherein: the first elastic action part (18) and/or the second elastic action part (20) are/is also provided with a zigzag position (22), elastically act with the middle element (8) and/or the inner step position (16) through the zigzag position (22), and are at least partially shielded by the middle element (8) and/or the handle part (6) and the separation positioning part (7).

8. The furniture hinge base quick fastening structure according to any one of claims 2 to 7, wherein: buckling positioning parts (23) are respectively bent outwards on the left side wall and the right side wall of the U shape, the buckling positioning parts (23) are positioned above the opening buckling part (5), and positioning steps are formed between the buckling positioning parts and the left side wall and the right side wall of the U shape; a certain gap L1 is formed between the outer side of the buckling and positioning part (23) and the U-shaped inner wall of the middle element (8), a certain gap L2 is formed between the left and right U-shaped side walls and the inner wall of the base (4), wherein the size of the gap L1 is smaller than that of the gap L2; the buckling piece (3) is positioned on the middle element (8) through the separation positioning part (7) when rotating clockwise or swinging; the buckling piece (3) is positioned on a buckling positioning matching part (24) of the U-shaped inner wall of the middle element (8) through a buckling positioning part (23) when rotating anticlockwise or swinging, and/or the buckling piece (3) is positioned through an opening buckling part (5) and buckled on a rear buckling part (14) of the base (4) when rotating anticlockwise or swinging.

9. The furniture hinge base quick fastening structure according to claim 8, wherein: the connecting arm (1) is U-shaped, and an assembling shaft (25) is transversely arranged on the connecting arm; the middle element (8) is arranged in the U shape of the connecting arm (1), the side wall of the middle element is provided with a notch part (26), and the assembling shaft (25) is arranged on the connecting arm (1) and the notch part (26); the top of the connecting arm (1) is provided with a front-back adjusting piece (27), the front-back adjusting piece (27) is positioned and rotated at the top of the connecting arm (1) and acts on the intermediate element (8) when positioned and rotated, and drives the connecting arm (1) and the intermediate element (8) to move front and back through the matching of the assembling shaft (25) and the notch part (26), so that the front-back position adjustment between the connecting arm (1) and the intermediate element (8) is realized;

the top of the connecting arm (1) is also provided with an upper adjusting part and a lower adjusting part (28), the top of the middle element (8) is also provided with an opening groove part (29) and is in driving connection with the upper adjusting part and the lower adjusting part (28) through the opening groove part (29); the up-down adjusting piece (28) is positioned and rotated at the top of the connecting arm (1), acts through the opening groove part (29) when positioned and rotated, and drives the middle element (8) to move up and down in the connecting arm (1) so as to realize the up-down position adjustment between the connecting arm (1) and the middle element (8).

10. The furniture hinge base quick fastening structure according to claim 2 or 9, wherein: the hinge assembly comprises an outer hinge arm (30) and an inner hinge arm (31), one end of the outer hinge arm (30) and one end of the inner hinge arm (31) are respectively hinged with the hinge cup (2), and the other end of the outer hinge arm (30) and the other end of the inner hinge arm (31) are respectively hinged with the connecting arm (1); the connecting arm (1), the intermediate element (8) or the hinge cup (2) is provided with a damper (32), the damper (32) is an oil pressure damper or an air pressure damper and is matched with the inner hinge arm (31) at least when the furniture hinge is hinged and closed to generate a buffering effect, or a connector (33) arranged on the connecting arm (1) in a rotating or swinging mode is matched with the inner hinge arm (31) to generate a buffering effect, so that the damping hinge between the connecting arm (1) and the hinge cup (2) is closed; the hinged position of the outer hinged arm (30) and the connecting arm (1) is also provided with a hinged elastic element (34) which generates a hinged closing force at least when the furniture hinge is hinged and closed.