A simple positioning and assembly structure for a hinge

Abstract

The present invention relates to a simple positioning and assembly structure for a hinge, comprising a hinge and a base assembly. The hinge includes a U-shaped connecting arm, and a U-shaped intermediate element is arranged inside the U-shaped connecting arm. The base assembly includes a movable base, and a front locking portion and a rear buckling portion are arranged at intervals between the intermediate element and the movable base. The movable base is in a shape of a straight line, and a pre-positioning step and a final positioning portion are arranged on its side. A pre-positioning mating step and a final positioning mating portion are arranged at the bottom of the intermediate element. When assembling, the intermediate element is pre-positioned through the pre-positioning mating step and the pre-positioning step of the movable base. After pre-positioning, the intermediate element is at least positioned front and rear through the final positioning mating portion and the final positioning portion of the movable base. After being positioned front and rear, the intermediate element is detachably connected to the movable base through the cooperation of the front locking portion and the rear buckling portion, so as to finally realize the positioning and assembly between the intermediate element and the movable base. After the positioning and assembly, the intermediate element covers at least part of the movable base.

Description

Technical Field

[0001] The present invention relates to a simple positioning and assembling structure for a hinge. Background Art

[0002] Chinese Patent Document No. CN200946416Y disclosed on September 12, 2007 a concealed iron chain for a furniture door, which includes a fixed base fixed on a door frame, a movable base fixed on a door body, and an iron connecting arm connected therebetween. The fixed base is composed of an adjustable bottom plate and a fixed plate. The adjustable bottom plate formed by stamping is a T-shaped or middle-shaped shell, and its edge flanges extend inwards to form limit tongue pieces or / and limit convex parts; the fixed plate formed by stamping is a rectangular shell, and its edge flanges are provided with notches matching with the limit tongue pieces or / and limit convex parts; the adjustable bottom plate and the fixed plate are in sliding fit, and one or more limit tongue pieces are oppositely arranged on both sides of the edge of the adjustable bottom plate; one or more limit convex parts are oppositely arranged on both sides of the edge of the adjustable bottom plate. It is alleged that when the concealed iron chain of this structure is connected with an ordinary hinge arm, it has the characteristics of low processing cost, relatively fast and convenient disassembly and assembly; however, the connection method between the fixed base and the iron connecting arm is unreasonable, the structure is complex, and it cannot meet the user's requirements for the quick, simple, convenient and accurate positioning and assembly of the fixed base and the iron connecting arm. Therefore, it is necessary to further improve. Summary of the Invention

[0003] The purpose of the present invention is to provide a simple positioning and assembling structure for a hinge to overcome the deficiencies in the prior art that the connection method between the fixed base and the iron connecting arm is unreasonable, the structure is complex, and the assembly is inconvenient.

[0004] A simple positioning and assembling structure for a hinge designed according to this purpose includes a hinge and a base assembly that are detachably and cooperatively connected. Among them, the hinge at least includes a connecting arm, the connecting arm is U-shaped, and a U-shaped intermediate element is arranged inside the U-shape of the connecting arm. The base assembly at least includes a movable base. The characteristics are that a front locking part and a rear buckling part are arranged at intervals between the intermediate element and the movable base; the movable base is in a straight shape, and a pre-positioning step and a final positioning part are arranged on its side; a pre-positioning cooperation step and a final positioning cooperation part are arranged at the U-shaped bottom of the intermediate element or the connecting arm.

[0005] When assembling, the intermediate element or the connecting arm is pre-positioned with the pre-positioning step of the movable base through the pre-positioning cooperation step.

[0006] After pre-positioning, the intermediate element or the connecting arm is cooperated with the final positioning part of the movable base through the final positioning cooperation part and at least realizes front and rear positioning.

[0007] The intermediate element or connecting arm is detachably connected to the movable base through the cooperation of the front locking part and the rear buckling part after being positioned front and rear, so as to finally realize the positioning and assembly between the intermediate element or connecting arm and the movable base.

[0008] Among them, the intermediate element or connecting arm covers at least part of the movable base after positioning and assembly.

[0009] The side of the movable base is convexly provided with a first convex part, a second convex part and a third convex part. The first convex part, the second convex part and the third convex part are independently arranged and form a spacing therebetween. Or, the first convex part and the second convex part are integrally arranged and form a spacing with the third convex part; the pre-positioning step is located at the front end of the first convex part, and the final positioning part is arranged between the second convex part and the third convex part; the front end of the intermediate element extends with an extending part; the pre-positioning cooperation step is located at the rear end of the extending part and is pre-positioned on the pre-positioning step during the assembly of the movable base and the intermediate element; the final positioning cooperation part is arranged on the intermediate element and acts on the final positioning part after the pre-positioning of the movable base and the intermediate element, so as to at least realize the front and rear positioning between the movable base and the intermediate element.

[0010] The final positioning cooperation part and the extending part are independently arranged and form a spacing therebetween; among them, an upper and lower limiting part is also arranged between the final positioning cooperation part and the extending part. The upper and lower limiting part acts on the first convex part, or the second convex part, or the third convex part after the front and rear positioning of the movable base and the intermediate element, so as to realize the upper and lower positioning between the movable base and the intermediate element.

[0011] A positioning guiding part is arranged between the final positioning cooperation part and the second convex part and / or the third convex part; the final positioning cooperation part and the second convex part and / or the third convex part are at least mutually guided and positioned through the positioning guiding part after the pre-positioning of the pre-positioning step and the pre-positioning cooperation step.

[0012] The pre-positioning step is arranged at the front end of the first convex part and is arranged in an arc or at a right angle towards the front end of the movable base; the pre-positioning cooperation step is arranged at the rear end of the extending part and is arranged in an arc or at a right angle towards the direction of the upper and lower limiting part; among them, the direction of the pre-positioning step is opposite to the direction of the pre-positioning cooperation step, and the two are mutually relied on or in clearance fit after the positioning and cooperation of the final positioning part and the final positioning cooperation part.

[0013] The front end of the movable base further extends with a side surface part, and the side surface part is arranged in an arc or at a right angle towards the pre-positioning step and / or the first convex part with a side limiting step; the U-shaped inner wall of the intermediate element is provided with an inner wall limiting part and is pre-limited on the side limiting step through the inner wall limiting part during assembly.

[0014] A limiting and guiding portion is further provided between the inner wall limiting portion and the side surface portion and / or the side limiting step, and the movable base and the intermediate element are at least guided and limited in cooperation with each other through the limiting and guiding portion during assembly; wherein, after the movable base and the intermediate element are assembled, the intermediate element U-shapedly wraps the left and right sides of the movable base, the side surface portion is located inside the U-shape of the intermediate element, and a clearance is formed between the side surface portion and the U-shaped inner wall of the intermediate element; the inner wall limiting portion and the side limiting step are located within the clearance.

[0015] The front locking portions respectively include a locking member and a front locking position, and the rear buckling portions respectively include a buckling member and a rear buckling position; wherein, the locking member elastically slides on the protruding portion at the front end of the intermediate element, the buckling member elastically swings or slides at the rear end of the intermediate element, the front locking position is arranged on the side surface portion at the front end of the movable base, and the rear buckling position is arranged on the movable base and forms a spacing with the front locking position.

[0016] A front elastic member is arranged between the locking member and the front end of the intermediate element, and the locking member is elastically limited to slide on the protruding portion through the front elastic member and always generates a locking acting force towards the rear end of the intermediate element. When the locking member slides, it elastically locks or disengages with the front locking position.

[0017] A rear elastic member is arranged between the buckling member and the rear end of the intermediate element, and the buckling member is elastically limited to swing at the rear end of the intermediate element through the rear elastic member and always generates a buckling acting force towards the front end of the intermediate element. When the buckling member elastically swings, it elastically buckles or disengages with the rear buckling position through the opening buckling position arranged thereon.

[0018] A swing limiting portion is further arranged on the buckling member, and a swing limiting and cooperating portion is further arranged at the rear end of the U-shaped inner wall of the intermediate element; the buckling member is arranged inside the U-shape of the intermediate element and is elastically limited to swing on the swing limiting and cooperating portion through the cooperation of the rear elastic member and the swing limiting portion.

[0019] The hinge further includes a hinge cup, a damper and a hinge assembly; wherein, the hinge assembly includes an outer hinge arm and an inner hinge arm. One end of the outer hinge arm and the inner hinge arm is respectively hinged to the hinge cup, and the other end is respectively hinged to the connecting arm. An articulated elastic member is further arranged at the hinged portion of the outer hinge arm and the connecting arm. One end of the damper is arranged inside the U-shape of the intermediate element, and the other end is cooperatively connected with the inner hinge arm; the hinge cup is elastically hinged to open and close on the connecting arm through the cooperation of the outer hinge arm, the inner hinge arm and the articulated elastic member, and is at least buffered and closed on the connecting arm through the damper when being articulated and closed.

[0020] The base assembly further includes a fixed bracket. The movable base is arranged on the fixed bracket, and a guiding member and an adjusting member are arranged therebetween. The guiding member is arranged between the movable base and the fixed bracket. The adjusting member is positioned and rotatable on the fixed bracket, and drives the movable base to slide on the fixed bracket in a guided manner by the guiding member when rotating, so as to finally realize the position adjustment between the hinge and the base assembly.

[0021] Wherein, a plurality of fastening parts are further arranged on the fixed bracket. After the intermediate element or the connecting arm is positioned and assembled, the fastening parts are blocked. The adjusting member is located behind the intermediate element or the connecting arm.

[0022] Through the improvement of the above structure, the present invention has the following advantages compared with the prior art:

[0023] 1. When the movable base and the intermediate element or the connecting arm are assembled, first, pre-positioning is realized through the cooperation of the pre-positioning step and the pre-positioning mating step. Therefore, the movable base and the intermediate element or the connecting arm can be assembled at a specified position, and further ensure that the final positioning part and the final positioning mating part can complete the mutual positioning function, that is, after pre-positioning, the movable base and the intermediate element or the connecting arm can realize at least front-back positioning through the cooperation of the final positioning part and the final positioning mating part, so as to avoid the problem that the positioning position of the final positioning part and the final positioning mating part is deviated due to the abnormal buckling, difficult buckling or unreasonable buckling position of the front locking part and the rear buckling part, affecting the positioning function of the two, so as to improve the assembly accuracy between the movable base and the intermediate element or the connecting arm.

[0024] 2. The locking member always generates a locking force towards the rear end of the intermediate element through the action of the front elastic member, and elastically locks or disengages with the front locking position at the front end of the movable base. The buckling member always generates a buckling force towards the front end of the intermediate element through the action of the rear elastic member, and elastically buckles or disengages with the rear buckling position at the rear end of the movable base, so as to realize the simple disassembly and assembly connection between the connecting arm, the intermediate element and the base assembly. Since the buckling member and the locking member generate forces in opposite directions respectively, the base assembly can be effectively clamped and fixed in the front-back direction during assembly, so as to improve the assembly stability between the connecting arm, the intermediate element and the base assembly, and finally make the assembly between the hinge and the base assembly more firm. At the same time, since the buckling member and the locking member can elastically move at the front and rear ends of the intermediate element, the problem of jamming between the hinge and the base assembly after assembly can be effectively avoided, so as to improve the assembly rationality between the hinge and the base assembly, and at the same time facilitate the user to disassemble the hinge and the base assembly, which greatly facilitates the user's use.

[0025] 3. Since the fastening member and the locking member can elastically move at the front and rear ends of the intermediate element, the hinge can be assembled on the base assembly by pressing. The application of the pressing force is fast, convenient, easy, and with a small force, thus reducing the force required by the user for assembling the hinge and the base assembly and facilitating the user's use.

[0026] 4. During the use process, the user can, according to actual needs, complete the assembly between the hinge and the base assembly by using the step-by-step pressing or direct pressing method; that is, the user can first assemble the open fastening position and the rear fastening position, and then press and assemble the locking member and the front locking position, or first assemble the locking member and the front locking position, and then press and assemble the open fastening position and the rear fastening position, or simultaneously press and assemble the open fastening position and the rear fastening position, and the locking member and the front locking position. The choice of multiple pressing assembly sequences can further improve the user's convenience in use.

[0027] 5. After the movable base and the intermediate element are assembled, they can achieve all-round positioning assembly in the left-right, front-back, and up-down directions through the cooperation of the front locking part, the rear fastening part, the upper and lower limiting parts, and the U-shaped inner wall, effectively improving the assembly stability and firmness of the two, thus avoiding the loosening problem that may occur due to external forces during the assembly, transportation, and use processes, and further improving the use safety of the hinge after assembly.

[0028] 6. Adopting a base assembly structure in the shape of a straight line enables the hinge to cover at least part of the base assembly after assembly, only exposing the adjusting member for adjusting the relative position of the hinge. This not only improves the connection compactness between components but also avoids the problems that the base assembly is exposed due to assembly, and the user is easily touched during use, resulting in user injury or the hinge falling off, affecting the assembly stability of the hinge, making the assembly of the hinge more firm and the user's use safer and more reliable, so as to improve the user's experience.

[0029] Generally speaking, it has the characteristics of simple and reasonable structure, reliable performance, low manufacturing cost, long service life, high safety, fast, simple, and convenient disassembly and assembly process, firm assembly, accurate positioning, and compact connection between components, and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic exploded view of an embodiment of the present invention.

[0031] Figure 2 It is a schematic assembly view of an embodiment of the present invention.

[0032] Figure 3 It is a schematic cross-sectional assembly view of an embodiment of the present invention.

[0033] Figure 4Schematic diagram of the exploded structure of the intermediate element and the base assembly according to an embodiment of the present invention.

[0034] Figures 5 - 7 Schematic diagram of the assembled structure of the intermediate element and the base assembly according to an embodiment of the present invention.

[0035] Figure 8 、 Figure 9 Schematic diagram of the sectional assembled structure of the intermediate element and the base assembly according to an embodiment of the present invention.

[0036] Figure 10 Schematic diagram of the exploded structure of the intermediate element and the fastening member according to an embodiment of the present invention.

[0037] Figure 11 Schematic diagram of the assembled structure of the intermediate element and the locking member according to an embodiment of the present invention.

[0038] Figure 12 Schematic diagram of the exploded structure of the base assembly according to an embodiment of the present invention.

[0039] Figure 13 Schematic diagram of the exploded structure of the hinge according to an embodiment of the present invention. Detailed implementation manners

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] Refer to Figures 1 - 13 , a simple positioning and assembling structure for a hinge, comprising a hinge and a base assembly that are detachably and cooperatively connected. Among them, the hinge at least includes a connecting arm 2, the connecting arm 2 is U-shaped, and a U-shaped intermediate element 3 is arranged inside the U-shape thereof. The base assembly at least includes a movable base 1, and a front locking portion and a rear fastening portion are arranged at intervals between the intermediate element 3 and the movable base 1; the movable base 1 is in a straight shape, and a pre-positioning step 4 and a final positioning portion 5 are arranged on its side; a pre-positioning cooperation step 6 and a final positioning cooperation portion 7 are arranged at the U-shaped bottom of the intermediate element 3 or the connecting arm 2.

[0042] During assembly, the intermediate element 3 or the connecting arm 2 is pre-positioned with the pre-positioning step 4 of the movable base 1 through the pre-positioning cooperation step 6.

[0043] After pre-positioning, the intermediate element 3 or the connecting arm 2 cooperates with the final positioning portion 5 of the movable base 1 through the final positioning cooperation portion 7 and at least realizes front-back positioning.

[0044] After front-back positioning, the intermediate element 3 or the connecting arm 2 is detachably connected to the movable base 1 through the cooperation of the front locking portion and the rear fastening portion, so as to finally realize the positioning and assembly between the intermediate element 3 or the connecting arm 2 and the movable base 1.

[0045] Wherein, after positioning and assembling, the intermediate element 3 or the connecting arm 2 at least partially shields the movable base 1.

[0046] On the side of the movable base 1, a first convex portion 31, a second convex portion 32, and a third convex portion 33 are protruded. The first convex portion 31, the second convex portion 32, and the third convex portion 33 are independently arranged and form a spacing therebetween. Alternatively, the first convex portion 31 and the second convex portion 32 are integrally arranged and form a spacing with the third convex portion 33; the pre-positioning step 4 is located at the front end of the first convex portion 31, and the final positioning portion 5 is arranged between the second convex portion 32 and the third convex portion 33; a protruding portion 9 extends from the front end of the intermediate element 3; the pre-positioning mating step 6 is located at the rear end of the protruding portion 9 and is pre-positioned on the pre-positioning step 4 when the movable base 1 and the intermediate element 3 are assembled; the final positioning mating portion 7 is arranged on the intermediate element 3 and, after the pre-positioning of the movable base 1 and the intermediate element 3, acts on the final positioning portion 5 to at least achieve the front-back positioning between the movable base 1 and the intermediate element 3.

[0047] The final positioning mating portion 7 and the protruding portion 9 are independently arranged and form a spacing therebetween; wherein, an upper and lower limiting portion 12 is further arranged between the final positioning mating portion 7 and the protruding portion 9. After the front-back positioning of the movable base 1 and the intermediate element 3, the upper and lower limiting portion 12 acts on the first convex portion 31, or the second convex portion 32, or the third convex portion 33 to achieve the up-down positioning between the movable base 1 and the intermediate element 3.

[0048] A positioning guiding portion 10 is arranged between the final positioning mating portion 7 and the second convex portion 32 and / or the third convex portion 33; between the final positioning mating portion 7 and the second convex portion 32 and / or the third convex portion 33, at least after the pre-positioning of the pre-positioning step 4 and the pre-positioning mating step 6, they are mutually guided and positioned through the positioning guiding portion 10.

[0049] The pre-positioning step 4 is arranged at the front end of the first convex portion 31 and is arranged in an arc shape or a right angle shape towards the front end of the movable base 1; the pre-positioning mating step 6 is arranged at the rear end of the protruding portion 9 and is arranged in an arc shape or a right angle shape towards the direction of the upper and lower limiting portion 12; wherein, the direction of the pre-positioning step 4 is opposite to the direction of the pre-positioning mating step 6, and the two are mutually relied on or in clearance fit after the positioning and mating of the final positioning portion 5 and the final positioning mating portion 7.

[0050] A side surface portion 13 further extends from the front end of the movable base 1. The side surface portion 13 is arranged in an arc shape or a right angle shape towards the pre-positioning step 4 and / or the first convex portion 31 with a side limiting step 14; an inner wall limiting portion 15 is arranged on the U-shaped inner wall of the intermediate element 3 and, during assembly, is pre-limited on the side limiting step 14 through the inner wall limiting portion 15.

[0051] A limiting and guiding portion 16 is further provided between the inner wall limiting portion 15 and the side face portion 13 and / or the side limiting step 14, and the movable base 1 and the intermediate element 3 are mutually guided and limited through the limiting and guiding portion 16 at least during the assembly of the movable base 1 and the intermediate element 3; wherein, after the movable base 1 and the intermediate element 3 are assembled, the intermediate element 3 wraps around the left and right sides of the movable base 1 in a U shape, the side face portion 13 is located inside the U shape of the intermediate element 3, and a clearance distance is formed between the side face portion 13 and the U-shaped inner wall of the intermediate element 3; the inner wall limiting portion 15 and the side limiting step 14 are located within the clearance distance.

[0052] The front locking parts respectively include a locking member 17 and a front locking position 18, and the rear buckling parts respectively include a buckling member 19 and a rear buckling position 20; wherein, the locking member 17 elastically slides on the protruding portion 9 at the front end of the intermediate element 3, the buckling member 19 elastically swings or slides at the rear end of the intermediate element 3, the front locking position 18 is arranged on the side face portion 13 at the front end of the movable base 1, and the rear buckling position 20 is arranged on the movable base 1 and forms a distance from the front locking position 18.

[0053] A front elastic member 21 is arranged between the locking member 17 and the front end of the intermediate element 3. The locking member 17 is elastically limited to slide on the protruding portion 9 through the front elastic member 21 and always generates a locking acting force towards the rear end of the intermediate element 3. When the locking member 17 slides, it elastically locks or disengages with the front locking position 18.

[0054] A rear elastic member 22 is arranged between the buckling member 19 and the rear end of the intermediate element 3. The buckling member 19 is elastically limited to swing at the rear end of the intermediate element 3 through the rear elastic member 22 and always generates a buckling acting force towards the front end of the intermediate element 3. When the buckling member 19 elastically swings, it elastically buckles or disengages with the rear buckling position 20 through the open buckling position 23 arranged thereon.

[0055] A swing limiting portion 24 is further arranged on the buckling member 19, and a swing limiting and cooperating portion 25 is further arranged at the rear end of the U-shaped inner wall of the intermediate element 3; the buckling member 19 is arranged inside the U shape of the intermediate element 3 and is elastically limited to swing on the swing limiting and cooperating portion 25 through the cooperation of the rear elastic member 22 and the swing limiting portion 24.

[0056] The hinge further includes a hinge cup 26, a damper 27 and a hinge assembly; wherein, the hinge assembly includes an outer hinge arm 28 and an inner hinge arm 29. One ends of the outer hinge arm 28 and the inner hinge arm 29 are respectively hinged to the hinge cup 26, and the other ends are respectively hinged to the connecting arm 2. An articulated elastic member 30 is further arranged at the hinged position of the outer hinge arm 28 and the connecting arm 2. One end of the damper 27 is arranged inside the U shape of the intermediate element 3, and the other end is cooperatively connected to the inner hinge arm 29; the hinge cup 26 is elastically hinged to open and close on the connecting arm 2 through the cooperation of the outer hinge arm 28, the inner hinge arm 29 and the articulated elastic member 30, and is at least buffered and closed on the connecting arm 2 through the damper 27 when being articulated and closed.

[0057] The base assembly further includes a fixed bracket 34. The movable base 1 is disposed on the fixed bracket 34, and a guide member 35 and an adjusting member 36 are provided therebetween. The guide member 35 is disposed between the movable base 1 and the fixed bracket 34. The adjusting member 36 is positioned and rotatable on the fixed bracket 34, and when rotating, drives the movable base 1 to slide on the fixed bracket 34 guided by the guide member 35, so as to finally realize the position adjustment between the hinge and the base assembly.

[0058] Wherein, a plurality of fastening portions 37 are further provided on the fixed bracket 34. After the intermediate element 3 or the connecting arm 2 is positioned and assembled, the fastening portions 37 are blocked, and the adjusting member 36 is located behind the intermediate element 3 or the connecting arm 2.

[0059] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A simple positioning and assembly structure for a hinge, comprising a hinge and a base assembly that are detachably and cooperatively connected, wherein, The hinge at least includes a connecting arm (2), the connecting arm (2) is U-shaped, and a U-shaped intermediate element (3) is arranged inside the U-shape thereof. The base assembly at least includes a movable base (1), and is characterized in that: a front locking portion and a rear buckling portion are arranged at intervals between the intermediate element (3) and the movable base (1); the movable base (1) is linear, and a pre-positioning step (4) and a final positioning portion (5) are arranged on its side; a pre-positioning mating step (6) and a final positioning mating portion (7) are arranged at the U-shaped bottom of the intermediate element (3) or the connecting arm (2); When assembled, the intermediate element (3) or the connecting arm (2) is pre-positioned with the pre-positioning step (4) of the movable base (1) through the pre-positioning mating step (6); After pre-positioning, the intermediate element (3) or the connecting arm (2) is mutually mated with the final positioning portion (5) of the movable base (1) through the final positioning mating portion (7), and at least realizes front-back positioning; After front-back positioning, the intermediate element (3) or the connecting arm (2) is detachably connected with the movable base (1) through the cooperation of the front locking portion and the rear buckling portion, so as to finally realize the positioning assembly between the intermediate element (3) or the connecting arm (2) and the movable base (1); Wherein, after positioning assembly, the intermediate element (3) or the connecting arm (2) shields at least part of the movable base (1); A first convex portion (31), a second convex portion (32) and a third convex portion (33) protrude from the side of the movable base (1). The first convex portion (31), the second convex portion (32) and the third convex portion (33) are arranged independently of each other and form a spacing therebetween. Alternatively, the first convex portion (31) and the second convex portion (32) are integrally arranged and form a spacing with the third convex portion (33); the pre-positioning step (4) is located at the front end of the first convex portion (31), and the final positioning portion (5) is arranged between the second convex portion (32) and the third convex portion (33); an extending portion (9) extends from the front end of the intermediate element (3); the pre-positioning mating step (6) is located at the rear end of the extending portion (9) and is pre-positioned on the pre-positioning step (4) during the assembly of the movable base (1) and the intermediate element (3); the final positioning mating portion (7) is arranged on the intermediate element (3) and acts on the final positioning portion (5) after the pre-positioning of the movable base (1) and the intermediate element (3), so as to at least realize the front-back positioning between the movable base (1) and the intermediate element (3); The final positioning mating portion (7) and the extending portion (9) are arranged independently of each other and form a spacing therebetween; wherein, an upper and lower limiting portion (12) is further arranged between the final positioning mating portion (7) and the extending portion (9). After the front-back positioning of the movable base (1) and the intermediate element (3), the upper and lower limiting portion (12) acts on the first convex portion (31), or the second convex portion (32), or the third convex portion (33) to realize the up-down positioning between the movable base (1) and the intermediate element (3).

2. The simple positioning and assembly structure for a hinge according to claim 1, wherein: A positioning guide portion (10) is provided between the final positioning mating portion (7) and the second convex portion (32) and / or the third convex portion (33); at least after pre-positioning at the pre-positioning step (4) and the pre-positioning mating step (6), the final positioning mating portion (7) and the second convex portion (32) and / or the third convex portion (33) are mutually guided and positioned through the positioning guide portion (10).

3. The simple positioning and assembly structure for a hinge according to claim 1, characterized in that: The pre-positioning step (4) is provided at the front end of the first convex portion (31) and is arc-shaped or right-angled towards the front end of the movable base (1); the pre-positioning mating step (6) is provided at the rear end of the protruding portion (9) and is arc-shaped or right-angled towards the direction of the upper and lower limiting portion (12); wherein, the direction of the pre-positioning step (4) is opposite to the direction of the pre-positioning mating step (6), and they are mutually relied on or in clearance fit after the final positioning portion (5) and the final positioning mating portion (7) are positioned and mated.

4. The simple positioning and assembly structure for a hinge according to claim 3, wherein: A side surface portion (13) also extends at the front end of the movable base (1), and a side limiting step (14) is arc-shaped or right-angled towards the pre-positioning step (4) and / or the first convex portion (31); an inner wall limiting portion (15) is provided on the U-shaped inner wall of the intermediate element (3), and during assembly, it is pre-limited on the side limiting step (14) through the inner wall limiting portion (15).

5. The simple positioning and assembly structure for a hinge according to claim 4, characterized in that: A limiting guide portion (16) is also provided between the inner wall limiting portion (15) and the side surface portion (13) and / or the side limiting step (14), and at least during the assembly of the movable base (1) and the intermediate element (3), they are mutually guided and limited through the limiting guide portion (16); wherein, after the movable base (1) and the intermediate element (3) are assembled, the intermediate element (3) U-shapedly wraps the left and right sides of the movable base (1), the side surface portion (13) is located inside the U-shape of the intermediate element (3), and a clearance is formed between the side surface portion (13) and the U-shaped inner wall of the intermediate element (3); the inner wall limiting portion (15) and the side limiting step (14) are located within the clearance.

6. The simple positioning and assembly structure for a hinge according to claim 4, characterized in that: The front locking portion respectively includes a locking member (17) and a front locking position (18), and the rear buckling portion respectively includes a buckling member (19) and a rear buckling position (20); wherein, the locking member (17) elastically slides on the protruding portion (9) at the front end of the intermediate element (3), the buckling member (19) elastically swings or slides at the rear end of the intermediate element (3), the front locking position (18) is provided on the side surface portion (13) at the front end of the movable base (1), and the rear buckling position (20) is provided on the movable base (1) and forms a spacing with the front locking position (18).

7. The simple positioning and assembly structure for a hinge according to claim 6, characterized in that: A front elastic member (21) is provided between the locking member (17) and the front end of the intermediate element (3), and the locking member (17) is elastically limited and slides on the protruding portion (9) through the front elastic member (21) and always generates a locking force towards the rear end of the intermediate element (3), and the locking member (17) is elastically locked or disengaged with the front locking position (18) during sliding; A rear elastic member (22) is provided between the fastening member (19) and the rear end of the intermediate member (3). The fastening member (19) is elastically limited to swing at the rear end of the intermediate member (3) by the rear elastic member (22), and always generates a fastening force towards the front end of the intermediate member (3). When the fastening member (19) swings elastically, it elastically fastens or disengages from the rear fastening position (20) through the opening fastening position (23) provided thereon; A swing limiting portion (24) is further provided on the fastening member (19), and a swing limiting cooperation portion (25) is further provided at the rear end of the U-shaped inner wall of the intermediate member (3); The fastening member (19) is arranged inside the U-shape of the intermediate member (3), and is elastically limited to swing on the swing limiting cooperation portion (25) through the cooperation of the rear elastic member (22) and the swing limiting portion (24).

8. The simple positioning and assembly structure for a hinge according to any one of claims 1-7, characterized in that: The hinge further includes a hinge cup (26), a damper (27) and a hinge assembly; wherein, the hinge assembly includes an outer hinge arm (28) and an inner hinge arm (29). One ends of the outer hinge arm (28) and the inner hinge arm (29) are respectively hinged to the hinge cup (26), and the other ends are respectively hinged to the connecting arm (2). An articulated elastic member (30) is further provided at the hinge between the outer hinge arm (28) and the connecting arm (2). One end of the damper (27) is arranged inside the U-shape of the intermediate member (3), and the other end is cooperatively connected to the inner hinge arm (29); The hinge cup (26) is elastically hinged to open and close on the connecting arm (2) through the cooperation of the outer hinge arm (28), the inner hinge arm (29) and the articulated elastic member (30), and is buffered and closed on the connecting arm (2) by the damper (27) at least when the hinge is closed; The base assembly further includes a fixed bracket (34). The movable base (1) is arranged on the fixed bracket (34), and a guide member (35) and an adjusting member (36) are provided therebetween; The guide member (35) is arranged between the movable base (1) and the fixed bracket (34). The adjusting member (36) is positioned and rotated on the fixed bracket (34), and when rotated, drives the movable base (1) to slide on the fixed bracket (34) guided by the guide member (35), so as to finally realize the position adjustment between the hinge and the base assembly; Wherein, a plurality of fastening portions (37) are further provided on the fixed bracket (34); The intermediate member (3) or the connecting arm (2) covers the fastening portions (37) after positioning and assembly, and the adjusting member (36) is located behind the intermediate member (3) or the connecting arm (2).

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