Base quick disassembly and assembly structure and door hinge

Abstract

The utility model relates to the technical field of hinges, and particularly discloses a base quick disassembly and assembly structure and a door hinge, which comprise a fixed bottom plate and a middle element. The middle element is provided with a mounting part used for being fixed to the adjustable bottom plate, and buckling structures with elastic pieces are arranged on the front and back sides of the middle element respectively; the fixed bottom plate is provided with a first connecting part which is matched with the middle element in shape and plays a role in positioning and guiding. The front and rear buckling structures of the middle element can be stably buckled on the fixed bottom plate through the elastic force of the elastic piece, and during assembly, one end of the middle element can be firstly buckled on the fixed bottom plate, then the other end of the middle element is buckled, or the two ends of the middle element are simultaneously buckled, so that simple and convenient disassembly and assembly and stable connection are realized. The structure is suitable for various door hinges, and the disassembly and assembly convenience and the use stability are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware accessories, in particular to a base quick-disassembly structure and a door hinge with an arbitrary buckling function. Background Art

[0002] Existing hinges for door connections typically consist of a fixed base secured to the door frame, a movable base secured to the door body, and a connecting arm connecting them. The fixed base consists of an adjustable base plate and a fixed plate. The adjustable base plate is a stamped, T-shaped or square-shaped shell with a folded edge extending inward to form a stopper tab or projection. The fixed plate is a stamped, rectangular shell with a folded edge providing a notch that mates with the stopper tab or projection. The adjustable base plate slides in contact with the fixed plate, with one or more stoppers positioned on opposite sides of the adjustable base plate's edge. However, this hinge structure is relatively complex and does not meet user requirements for quick, simple, and convenient assembly and disassembly between the fixed base and the connecting arm. Especially in high cabinets, when multiple hinges are required on a single door panel, the installation positions of the hinge bases must be carefully measured and aligned. Even the slightest deviation can prevent the door panel from being installed smoothly, causing difficulties for the on-site installer and hindering installation efficiency. Utility Model Content

[0003] The first invention purpose of the utility model is to solve the problems of high installation precision and low installation efficiency of existing hinges, and to provide a base quick-disassembly structure with an arbitrary buckling function.

[0004] In order to achieve the above invention objectives, the present invention adopts the following technical solutions:

[0005] The base quick-disassembly structure includes a fixed base plate and an intermediate element. The intermediate element is in a vertically flipped U-shape. The intermediate element is provided with a mounting portion for fixing to the adjustable base plate. The front and rear sides of the intermediate element are respectively provided with a first buckling structure and a second buckling structure. The first buckling structure and the second buckling structure both include a buckling portion and an elastic member. The fixed base plate includes a U-shaped first connecting portion and a second connecting portion connected to the left and right sides of the first connecting portion. The intermediate element is sleeved on the first connecting portion. Through the elastic force of the elastic member, the buckling portions of the first buckling structure and the second buckling structure are buckled backward and forward on the fixed base plate respectively, thereby realizing the assembly of the intermediate element and the fixed base plate.

[0006] In the present utility model, by setting the first connecting portion as a U shape, the shape of the first connecting portion is adapted to that of the intermediate element, which plays a positioning and guiding role during installation. Buckling structures are provided at both the front and rear ends of the intermediate element, and through the elastic force of the elastic member, the buckling portion can be buckled on the fixed base plate. During assembly, it is possible to first buckle one end of the intermediate element on the fixed base plate and then buckle the other end, or buckle both ends simultaneously. Compared with the prior art, the quick disassembly and assembly structure of the base of the present utility model can be applied to various door hinges. It can not only achieve the simple disassembly and assembly connection between the fixed base plate and the adjustable base plate, but also ensure that the intermediate element is firmly buckled on the fixed base plate. At the same time, during the buckling process, the elastic force of the elastic member is utilized to achieve a movable buckling, ensuring stable use after buckling.

[0007] Furthermore, a convex platform is provided at the lower part of the outer side wall of the first connecting portion. The convex platform is in an inclined shape that narrows from bottom to top, and the convex platform is in an interference connection with the side wall of the intermediate element. In this solution, the setting of the convex platform facilitates the intermediate element to maintain a tight and stable connection with the fixed base plate after assembly.

[0008] Furthermore, the first buckling structure includes a first pressing portion, a first pressing shaft, an arc-shaped sliding groove, a first buckling portion, and a first elastic member. The first buckling portion is provided at the bottom of the front end of the intermediate element. The arc-shaped sliding groove is provided on the first buckling portion. Both ends of the first pressing shaft are slidably arranged on the arc-shaped sliding groove. The first pressing portion is located at the upper part of the intermediate element and behind the first buckling portion. One end of the first elastic member abuts against the first pressing portion, and the other end elastically presses against the first pressing shaft. Through the action of the first elastic member on the first pressing shaft, a backward pressure is provided for the intermediate element, so that the first buckling portion is buckled on the fixed base plate. In this solution, when it is necessary to assemble the intermediate element and the fixed base plate, the first elastic member is in a compressed state, generating a backward elastic force. The elastic force is transmitted to the first pressing shaft. Since both ends of the first pressing shaft are slidably arranged on the arc-shaped sliding groove, the elastic force will be converted into a backward thrust. This backward thrust causes the first buckling portion to be tightly buckled on the fixed base plate, achieving a stable connection. At the same time, the design of the arc-shaped sliding groove allows the first pressing shaft to slide within a certain range to adapt to the requirements of different installation angles and positions, improving the flexibility and adaptability of assembly.

[0009] Furthermore, a first concave position is provided at the connection between the front end of the second connecting portion and the first connecting portion. The buckling portion of the first buckling structure is buckled on the first concave position. In this solution, the design of the first concave position provides an accurate positioning reference for the buckling of the first buckling portion. During the assembly process, the buckling portion can accurately buckle into the first concave position, achieving precise positioning between the intermediate element and the fixed base plate. At the same time, when the intermediate element is subjected to an external force, the first concave position plays a limiting role, and the first buckling portion will closely adhere to the first concave position and will not easily fall off the fixed base plate.

[0010] Further, the first fastening structure further includes a first mounting shaft and a first mounting hole. The first mounting hole is provided on the side wall of the intermediate element. The first elastic member includes oppositely arranged first elastic portions, a second elastic portion connected to one end of the two first elastic portions, and a third elastic portion bent backward from the other end of the first elastic portion. The first elastic portion is V-shaped, and a sleeve hole is provided in the middle of the first elastic portion. The first elastic member is sleeved on the first mounting shaft through the sleeve hole, and abuts against the first pressing portion through the third elastic portion.

[0011] Further, an avoidance groove is longitudinally penetrated through the top wall of the intermediate element. The first pressing portion is located on the avoidance groove and protrudes into the inner cavity of the intermediate element.

[0012] Further, the first pressing portion includes a first convex portion longitudinally arranged in the inner cavity of the intermediate element, and a second convex portion extending forward from the lower side of the first convex portion. A step is formed between the first convex portion and the second convex portion, and the second elastic portion abuts against the step.

[0013] Further, the second fastening structure includes a second fastening member, a second pressing portion, a second mounting shaft and a second elastic member. The second pressing portion is located on the upper part of the intermediate element. The second fastening member and the second elastic member are both rotatably assembled on the intermediate element through the second mounting shaft and are located behind the second pressing portion. A second fastening portion is provided at the lower part of the second fastening member. One end of the second elastic member presses against the second pressing portion, and the other end presses against the rear side of the second fastening portion to provide a forward pressure for the second fastening portion so that the second fastening portion is fastened forward on the fixed bottom plate.

[0014] Further, an insertion structure is further provided between the intermediate element and the second connecting portion to enhance the stability of the connection between the two.

[0015] Further, the mounting portion is provided on the top wall of the intermediate element and includes a mounting screw hole and an adjustment sliding groove. Both the mounting screw hole and the adjustment sliding groove are connected to the adjustable bottom plate through bolts.

[0016] Another object of the present invention is to provide a door hinge, and the door hinge has the base quick disassembly and assembly structure of the above solution. Description of the Drawings

[0017] Figure 1 is the decomposition of the base quick disassembly and assembly structure Figure 1 ;

[0018] Figure 2 is the structural schematic of the base quick disassembly and assembly structure Figure 1 ;

[0019] Figure 3 is the structural schematic of the seat quick disassembly and assembly structure Figure 2 ;

[0020] Figure 4Is the disassembly of the quick disassembly and assembly structure of the base Figure 2 ;

[0021] Figure 5 Is the disassembly of the quick disassembly and assembly structure of the base Figure 3 ;

[0022] Figure 6 Is the schematic structural diagram of the first elastic member;

[0023] Figure 7 Is the schematic structural diagram of the door hinge;

[0024] Figure 8 Is the exploded view of the door hinge.

[0025] Label description:

[0026] Quick disassembly and assembly structure of the base 1, fixed bottom plate 2, first connecting portion 21, boss 211, second connecting portion 22, first concave portion 221, socket 23, intermediate element 3, insert block 31, mounting portion 32, mounting screw hole 321, adjusting chute 322, first fastening structure 5, first pressing portion 51, first pressing shaft 52, arc chute 53, first fastening portion 54, first elastic member 55, first elastic portion 551, second elastic portion 552, third elastic portion 553, first mounting shaft 56, first mounting hole 57, second fastening structure 6, second fastening member 61, second fastening portion 611, second pressing portion 62, second mounting shaft 63, second elastic member 64, movable base 8, hinge 82, adjustable bottom plate 81, connecting arm 83. Specific embodiments

[0027] The following further describes the technical solution of the present invention according to the drawings:

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by "front", "rear", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] See Figures 1-8As shown in the figure, the utility model discloses a quick disassembly and assembly structure 1 of a base, which includes a fixed bottom plate 2 and an intermediate element 3. The intermediate element 3 is in a U shape that is vertically flipped. An installation part 32 for fixing with an adjustable bottom plate 81 is provided on the intermediate element 3. A first fastening structure 5 and a second fastening structure 6 are respectively provided on the front side and the rear side of the intermediate element 3. Both the first fastening structure 5 and the second fastening structure 6 include a fastening part and an elastic member; the fixed bottom plate 2 includes a U-shaped first connecting part 21 and second connecting parts 22 connected to the left and right sides of the first connecting part 21. The intermediate element 3 is sleeved on the first connecting part 21. Through the elastic force of the elastic member, the fastening parts of the first fastening structure 5 and the second fastening structure 6 are respectively fastened to the fixed bottom plate 2 backward and forward, realizing the assembly of the intermediate element 3 and the fixed bottom plate 2.

[0030] A boss 211 is provided on the lower part of the outer side wall of the first connecting part 21. The boss 211 is in an inclined shape that narrows from bottom to top. The boss 211 is in interference connection with the side wall of the intermediate element 3. In this solution, the setting of the boss 211 facilitates the intermediate element 3 to maintain a tight and stable connection with the fixed bottom plate 2 after assembly.

[0031] The first fastening structure 5 includes a first pressing part 51, a first pressing shaft 52, an arc-shaped chute 53, a first fastening part 54 and a first elastic member 55. The first fastening part 54 is arranged at the bottom of the front end of the intermediate element 3. The arc-shaped chute 53 is arranged on the first fastening part 54. Both ends of the first pressing shaft 52 are slidably arranged on the arc-shaped chute 53. The first pressing part 51 is located at the upper part of the intermediate element 3 and behind the first fastening part 54. One end of the first elastic member 55 abuts against the first pressing part 51, and the other end elastically presses against the first pressing shaft 52. A backward pressure is provided for the intermediate element 3 through the first pressing shaft 52, so that the first fastening part 54 is arranged on the fixed bottom plate 2. In this solution, when it is necessary to assemble the intermediate element 3 and the fixed bottom plate 2, the first elastic member 55 is in a compressed state, generating a backward elastic force. The elastic force is transmitted to the first pressing shaft 52. Since both ends of the first pressing shaft 52 are slidably arranged on the arc-shaped chute 53, the elastic force will be converted into a backward thrust. This backward thrust makes the first fastening part 54 tightly fastened to the fixed bottom plate 2, realizing a firm connection. At the same time, the design of the arc-shaped chute 53 allows the first pressing shaft 52 to slide within a certain range to adapt to the requirements of different installation angles and positions, improving the flexibility and adaptability of the assembly.

[0032] The first pressing part 51 is in an L shape.

[0033] A first recess 221 is provided at the connection between the front end of the second connecting portion 22 and the first connecting portion 21, and the engaging portion of the first engaging structure 5 is engaged with the first recess 221. In this solution, the design of the first recess 221 provides an accurate positioning reference for the engagement of the first engaging portion 54. During the assembly process, the engaging portion can accurately engage into the first recess 221, realizing the precise positioning between the intermediate element 3 and the fixed bottom plate 2. At the same time, when the intermediate element 3 is subjected to an external force, the first recess 221 plays a limiting role, and the first engaging portion 54 will closely adhere to the first recess 221 and will not easily fall off from the fixed bottom plate 2.

[0034] The above-mentioned first engaging structure 5 further includes a first mounting shaft 56 and a first mounting hole 57. The mounting hole is provided on the side wall of the intermediate element 3. The first elastic member 55 includes first elastic portions 551 arranged oppositely, a second elastic portion 552 connected to one end of the two first elastic portions 551, and a third elastic portion 553 bent backward from the other end of the first elastic portion 551. The first elastic portion 551 is V-shaped, and a sleeve hole is provided in the middle of the first elastic portion 551. The first elastic member 55 is sleeved on the first mounting shaft 56 through the sleeve hole, abuts against the first pressing portion 51 through the second elastic portion 552, and abuts against the first pressing shaft 52 through the third elastic portion 553. In this solution, the structure of this solution makes the connection between the first elastic member 55 and the first pressing shaft 52 more stable.

[0035] An avoidance groove is longitudinally penetrated through the top wall of the above-mentioned intermediate element 3, and the first pressing portion 51 is located on the avoidance groove and protrudes into the inner cavity of the intermediate element 3.

[0036] The above-mentioned first pressing portion 51 includes a first convex portion longitudinally arranged in the inner cavity of the intermediate element, and a second convex portion extending forward from the lower side of the first convex portion. A step is formed between the first convex portion and the second convex portion, and the second elastic portion abuts against the step.

[0037] The above-mentioned second engaging structure 6 includes a second engaging member 61, a second pressing portion 62, a second mounting shaft 63 and a second elastic member 64. The second pressing portion 62 is located at the upper part of the intermediate element 3. The second engaging member 61 and the second elastic member 64 are both rotatably assembled on the intermediate element 3 through the second mounting shaft 63 and are located at the rear side of the second pressing portion 62. A second engaging portion is provided at the lower part of the second engaging member 61. One end of the second elastic member 64 presses against the second pressing portion 62, and the other end presses against the rear side of the second engaging portion 611 to provide a forward pressure for the second engaging portion 611, so that the second engaging portion 611 is engaged forward on the fixed bottom plate 2.

[0038] An insertion and connection structure is further provided between the above-mentioned intermediate element 3 and the second connecting portion 22. Insertion blocks 31 extending downward are provided at the bottom of both sides of the intermediate element 3, and corresponding insertion openings 23 are provided on the first connecting portion 21. The insertion blocks 31 are inserted and connected with the insertion openings 23.

[0039] The above-mentioned mounting part 32 is provided on the top wall of the intermediate element 3, and includes a mounting screw hole 321 and an adjustment chute. The mounting screw hole 321 and the adjustment chute 322 are both connected to the adjustable bottom plate 81 by bolts.

[0040] In the present utility model, by setting the first connecting part 21 to be U-shaped, the shape of the first connecting part 21 is adapted to that of the intermediate element 3, which plays a positioning and guiding role during installation. Buckling structures are provided at both the front and rear ends of the intermediate element 3, and the buckling part can be buckled on the fixed bottom plate 2 by the elastic force of the elastic member. During assembly, it is possible to first buckle one end of the intermediate element 3 on the fixed bottom plate 2 and then buckle the other end, or buckle both ends simultaneously. Compared with the prior art, the quick disassembly and assembly structure 1 of the base of the present utility model can be applied to various door hinges 8, which can not only achieve the simple disassembly and assembly connection between the fixed bottom plate 2 and the adjustable bottom plate 81, but also ensure that the intermediate element 3 is firmly buckled on the fixed bottom plate 2. At the same time, during the buckling process, the elastic force of the elastic member is used to achieve movable buckling, ensuring stable use after buckling.

[0041] The present utility model also discloses a door hinge 8, which includes a movable base 82, a fixed base, and a connecting arm 83 connecting the two. The fixed base includes an adjustable bottom plate 81 and the quick disassembly and assembly structure of the base in the above solution.

[0042] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. According to the disclosure and teaching of the above specification, those skilled in the art of the present utility model can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A quick disassembly and assembly structure (1) of a base, characterized in that, The invention comprises a fixed base plate (2) and an intermediate element (3), wherein the intermediate element (3) is provided with a mounting portion (32) for fixing to an adjustable base plate (81), and the front side and the rear side of the intermediate element (3) are respectively provided with a first buckling structure (5) and a second buckling structure (6), wherein the first buckling structure (5) and the second buckling structure (6) both comprise a buckling portion and an elastic member; the fixed base plate (2) comprises a first connecting portion and a second connecting portion (22) connected to the left and right sides of the first connecting portion (21), and the intermediate element (3) is sleeved on the first connecting portion (21), and through the elastic force of the elastic member, the buckling portions of the first buckling structure (5) and the second buckling structure (6) are buckled on the fixed base plate (2) backward and forward respectively, thereby realizing the assembly of the intermediate element (3) and the fixed base plate (2).

2. The quick disassembly and assembly structure (1) of the base according to claim 1, wherein, The intermediate element (3) is in a vertically inverted U-shape, and the first connecting portion (21) is in a U-shape.

3. The base quick disassembly and assembly structure (1) according to claim 1, characterized in that: A boss (211) is provided at the lower portion of the outer side wall of the first connecting portion (21). The boss (211) is inclined and narrows from bottom to top. The boss (211) is interference-connected with the side wall of the intermediate element (3).

4. The quick disassembly and assembly structure (1) of the base according to claim 1, characterized in that, The first buckling structure (5) comprises a first pressing portion (51), a first pressing shaft (52), an arc-shaped sliding groove (53), a first buckling portion (54) and a first elastic member (55). The first buckling portion (54) is arranged at the front end bottom of the intermediate element (3), the arc-shaped sliding groove (53) is arranged on the first buckling portion (54), and both ends of the first pressing shaft (52) are slidably arranged on the arc-shaped sliding groove (53). The first pressing portion (51) is located at the upper part of the intermediate element (3) and at the rear side of the first buckling portion (54). One end of the first elastic member (55) abuts against the first pressing portion (51), and the other end elastically presses on the first pressing shaft (52). Through the action of the first elastic member (55) on the first pressing shaft (52), the intermediate element (3) is provided with backward pressure, so that the first buckling portion (54) is buckled on the fixed base plate (2).

5. The quick disassembly and assembly structure (1) of the base according to claim 1 or 4, characterized in that, A first recess (221) is provided at the connection point between the front ends of the second connecting portion (22) and the first connecting portion (21), and the locking portion of the first locking structure (5) is locked on the first recess (221).

6. The quick disassembly and assembly structure (1) of the base according to claim 4, characterized in that, The first buckling structure (5) further comprises a first mounting shaft (56) and a first mounting hole (57), wherein the first mounting hole (57) is provided on the side wall of the intermediate element (3), and the first elastic member (55) comprises first elastic portions (551) arranged opposite to each other, a second elastic portion (552) connected to one end of the two first elastic portions (551), and a third elastic portion (553) bent backward from the other end of the first elastic portion (551), wherein the first elastic portion (551) is V-shaped, and a sleeve hole is provided in the middle of the first elastic portion (551), and the first elastic member (55) is sleeved on the first mounting shaft (56) through the sleeve hole and abuts against the first pressing portion (51) through the third elastic portion (553).

7. The quick disassembly and assembly structure (1) of the base according to claim 6, characterized in that, The top wall of the intermediate element (3) has a longitudinally extending air-avoiding groove, and the first pressing portion (51) is located on the air-avoiding groove and protrudes toward the inner cavity of the intermediate element (3).

8. The base quick disassembly and assembly structure (1) according to claim 1, characterized in that: The second fastening structure (6) includes a second fastening member (61), a second pressing portion (62), a second mounting shaft (63) and a second elastic member (64). The second pressing portion (62) is located at the upper portion of the intermediate element (3). The second fastening member (61) and the second elastic member (64) are both rotatably assembled on the intermediate element (3) through the second mounting shaft (63) and are located at the rear side of the second pressing portion (62). A second fastening member is provided at the lower portion of the second fastening member (61). One end of the second elastic member (64) presses on the second pressing portion (62) and the other end presses on the rear side of the second fastening member (611) to provide forward pressure to the second fastening member so that the second fastening member fastens forward on the fixed base plate (2).

9. The quick disassembly and assembly structure (1) of the base according to claim 8, characterized in that, A socket structure is also provided between the intermediate element (3) and the second connecting portion (22).

10. Door hinge (8), characterized in that, The door hinge (8) has a base quick-disassembly structure (1) according to any one of claims 1 to 9.

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