Improved adjustable hinge

By using an eccentric shaft and adjusting sleeve design, the problem of traditional hinge structures being unable to be adjusted is solved, enabling flexible adjustment and an aesthetically pleasing appearance of the hinge, and preventing jamming.

CN223880969UActive Publication Date: 2026-02-06CMECH (GUANGZHOU) INDUSTRIAL LTD
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Patent Information

Application Number
CN202520143026.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-02-06
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Traditional hinge structures lack adjustment functions, causing the fan frame and the frame to not open and close smoothly, or even get stuck.

Method used

The hinge employs an eccentric shaft and adjusting sleeve structure. The horizontal position of the hinge is adjusted by rotating the eccentric shaft. Combined with the design of the limiting structure and locking element, the horizontal and vertical adjustment of the fan hinge is achieved.

Benefits of technology

It enables flexible adjustment of the horizontal position and gap of the hinge, has a simple structure, is easy to operate, has a harmonious and beautiful appearance, and avoids jamming.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of doors and windows, and provides an improved adjustable hinge which comprises a sash hinge, a frame hinge and an eccentric shaft. A first containing groove and a second containing groove which are used for containing the eccentric shaft are formed in the leaf hinge and the frame hinge respectively, and the first containing groove and the second containing groove extend in the axial direction. The eccentric shaft comprises a first shaft body, a second shaft body and a connecting disc, the connecting disc is located between the first shaft body and the second shaft body, the first shaft body and the second shaft body extend in the axial direction, and the axes of the first shaft body and the second shaft body are eccentric. The first shaft is rotatably arranged in the first accommodating groove, and the second shaft is rotatably arranged in the second accommodating groove; a locking piece capable of locking or loosening the first shaft is arranged on the leaf hinge; and the first accommodating groove penetrates through the leaf hinge, so that the leaf hinge can be conveniently rotated. The hinge can be adjusted in the horizontal direction, and is simple in structure and convenient to operate.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to door and window technical field, concretely relates to an improved adjustable hinge. BACKGROUND

[0002] The door or window structure generally contains rotatable sash and fixed frame, sash can rotate relative to frame, realize the opening of door or window. In order to realize the rotatable connection of sash and frame, generally install several hinges between both, hinge includes with sash connection's fan hinge and with frame connection's frame hinge, fan hinge and frame hinge usually pass through the shaft and are assembled to realize rotatable. When installing door and window sash, it is difficult to avoid some installation deviation, and the traditional hinge structure due to lack of adjusting function, lead to sash and frame cannot smoothly open and close, serious even appear deadlocking phenomenon. SUMMARY

[0003] In order to overcome the above-mentioned shortcomings of prior art, the utility model aims at providing an improved adjustable hinge, which can be adjusted in horizontal direction, and simple structure, convenient operation.

[0004] The utility model solves the technical scheme that the utility model employs is:

[0005] An improved adjustable hinge, including fan hinge, frame hinge, eccentric shaft and adjusting sleeve;

[0006] The first accommodating groove and the second accommodating groove for accommodating the eccentric shaft are respectively arranged on the fan hinge and the frame hinge, and the first accommodating groove and the second accommodating groove extend along the axial direction.

[0007] The eccentric shaft comprises a first shaft, a second shaft and a connecting disc, the connecting disc is located between the first shaft and the second shaft, and the first shaft and the second shaft extend along the axial direction and the axis is eccentric;The first shaft is rotatably arranged in the first accommodating groove, and the second shaft is rotatably arranged in the second accommodating groove.

[0008] The locking member for locking or loosening the first shaft is arranged on the fan hinge;The first accommodating groove penetrates the fan hinge, facilitating the rotation operation.

[0009] The adjusting sleeve is located on the frame hinge, the eccentric shaft passes through the adjusting sleeve, and the connecting disc of the eccentric shaft is located in the adjusting sleeve;The limiting structure for limiting the movement amplitude of the fan hinge is arranged on the adjusting sleeve.

[0010] The adjusting sleeve comprises a connecting ring and a supporting part; the connecting ring is located on one side of the supporting part facing the second shaft, and the connecting disc is located in the connecting ring; the limiting structure is arranged on one side of the supporting part facing the first shaft.

[0011] Preferably, the limiting structure comprises two oppositely arranged limiting parts, and a rotating space is formed between the two limiting parts; the fan hinge is provided with a radially protruding protruding part, and the protruding part is located in the rotating space; the two limiting parts limit the rotating angle of the protruding part to limit the moving amplitude of the fan hinge.

[0012] In an preferred embodiment of the utility model, the fan hinge comprises a first stand and a first assembly piece; the first accommodating groove is arranged on the first stand, and the first assembly piece and the protruding part are both connected to the outer surface of the first stand.

[0013] The first assembly piece is connected with the fan frame.

[0014] Preferably, a threaded hole is arranged on the protruding part, the threaded hole is in communication with the first accommodating groove, and an external thread is arranged on the locking piece and matched with the threaded hole.

[0015] Preferably, the fan hinge further comprises a sheath; the sheath covers the protruding part and the first stand.

[0016] Preferably, the fan hinge further comprises a first clamping piece.

[0017] The first assembly piece comprises a first connecting section connected with the first stand and a first assembly section used for assembling with the fan frame; a first folding edge is arranged on the side of the first assembly section away from the first connecting section.

[0018] When assembling with the fan frame, the first folding edge is clamped into the edge of the fan frame slot, the first clamping piece is embedded in the fan frame slot and clamped into the other edge of the fan frame slot, and a first locking element is arranged between the first assembly section and the first clamping piece.

[0019] In an preferred embodiment of the utility model, the frame hinge comprises a second stand and a second assembly piece; the second accommodating groove is arranged on the second stand, a shaft sleeve is arranged in the second accommodating groove, and the second shaft is rotatably inserted into the shaft sleeve; the second assembly piece is connected to the outer surface of the second stand; and the second assembly piece is connected with the border frame.

[0020] Preferably, the frame hinge further comprises a second clamping piece.

[0021] The second assembling piece comprises a second connecting section connected with the second stand and a second assembling section for assembling with the frame; a second folding edge is arranged on a side of the second assembling section away from the second connecting section;

[0022] When assembling with the frame, the second folding edge is clamped into the edge of the frame slot, the second clamping piece is embedded in the frame slot and clamped into the other edge of the frame slot, and a second locking element is arranged between the second assembling section and the second clamping piece.

[0023] Preferably, a longitudinal adjusting screw is arranged on an end of the second accommodating slot away from the fan hinge, and an inner thread matched with the longitudinal adjusting screw is arranged on an inner wall of the second accommodating slot; the longitudinal adjusting screw is arranged on an end of the shaft sleeve away from the fan hinge.

[0024] Compared with the prior art, the improved adjustable hinge has the following beneficial effects:

[0025] When the horizontal position of the hinge needs to be adjusted, the locking piece is loosened, then the eccentric shaft is rotated, the first shaft and the second shaft are arranged eccentrically, the fan hinge is horizontally offset, and thus the horizontal position adjustment of the hinge is realized; after the adjustment is completed, the fan hinge and the first shaft are locked again by using the locking piece.

[0026] The improved adjustable hinge has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 It is a perspective view of the improved adjustable hinge of the present application.

[0029] Figure 2 It is a schematic view of the improved adjustable hinge of the present application installed on the fan frame and the frame.

[0030] Figure 3 It is a sectional view of the improved adjustable hinge of the present application.

[0031] Figure 4 It is an exploded view of the improved adjustable hinge of the present application.

[0032] Figure 5 It is a perspective view of the fan hinge.

[0033] Figure 6 is a perspective view of the frame hinge.

[0034] Figure 7 is a perspective view of the eccentric shaft and the adjusting sleeve in assembled state.

[0035] Figure 8 is a perspective view of the adjusting sleeve.

[0036] Figure 9 is a perspective view of the eccentric shaft.

[0037] Figure 10 is a schematic view of the adjustment to one of the extreme positions (left extreme in the figure) during the horizontal adjustment.

[0038] Figure 11 is a schematic view of the fan hinge and the frame hinge in the initial position.

[0039] Figure 12 is a schematic view of the adjustment to the other extreme position (right extreme in the figure) during the horizontal adjustment.

[0040] wherein:

[0041] 1 - fan hinge, 101 - first upright, 102 - first connecting section, 103 - first assembling section, 104 - first folding edge, 105 - first accommodating slot, 106 - protrusion, 107 - threaded hole;

[0042] 2 - frame hinge, 201 - second upright, 202 - second connecting section, 203 - second accommodating slot, 204 - stepped hole, 205 - internal thread, 206 - second assembling section, 207 - second folding edge;

[0043] 3 - first clamping piece;

[0044] 4 - second clamping piece;

[0045] 5 - long screw;

[0046] 6 - first locking element;

[0047] 7 - second locking element;

[0048] 8 - fan frame;

[0049] 9 - frame;

[0050] 10 - locking piece;

[0051] 11 - eccentric shaft, 1101 - first shaft, 1102 - second shaft, 1103 - connecting disc, 1104 - disc, 1105 - operating counterbore;

[0052] 12 - shaft sleeve;

[0053] 13-adjusting sleeve, 1301-supporting part, 1302-connecting ring, 1303-limiting part, 1304-arc-shaped part, 1305-perforation, 1306-rotating space;

[0054] 14-sheath;

[0055] 15-first end cover;

[0056] 16-longitudinal adjusting screw;

[0057] 17-second end cover. DETAILED DESCRIPTION

[0058] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. The described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0060] Example 1

[0061] Referring to Figures 1-12 The present embodiment discloses an improved adjustable hinge, which comprises a fan hinge 1, a frame hinge 2, an eccentric shaft 11 and an adjusting sleeve 13. The fan hinge 1 and the frame hinge 2 are respectively provided with a first accommodating groove 105 and a second accommodating groove 203 for accommodating the eccentric shaft 11, and the first accommodating groove 105 and the second accommodating groove 203 both extend in the axial direction. The eccentric shaft 11 comprises a first shaft 1101, a second shaft 1102 and a connecting disc 1103, the connecting disc 1103 is located between the first shaft 1101 and the second shaft 1102, the first shaft 1101 and the second shaft 1102 both extend in the axial direction and the axis is eccentric, and the diameter of the first shaft 1101 is smaller than that of the second shaft 1102; the first shaft 1101 is rotatably arranged in the first accommodating groove 105, and the second shaft 1102 is rotatably arranged in the second accommodating groove 203.

[0062] The fan hinge 1 is provided with a locking piece 10 capable of locking or releasing the first shaft 1101; the first accommodating groove 105 penetrates the fan hinge 1, and the end of the first shaft 1101 away from the second shaft 1102 is provided with an operating counterbore 1105, which can be a hexagonal counterbore matched with a hexagonal screwdriver to facilitate rotation operation. The adjusting sleeve 13 is located on the frame hinge 2, the eccentric shaft 11 penetrates the adjusting sleeve 13, and the connecting disc 1103 of the eccentric shaft 11 is located in the adjusting sleeve 13; the adjusting sleeve 13 is provided with a limiting structure for limiting the movement amplitude of the fan hinge 1.

[0063] Further, the adjusting sleeve 13 comprises a connecting ring 1302 and a supporting part 1301; the connecting ring 1302 is located on the side of the supporting part 1301 facing the second shaft 1102, and the connecting disc 1103 is located in the connecting ring 1302; the limiting structure is arranged on the side of the supporting part 1301 facing the first shaft 1101. The present embodiment is further provided with a disc 1104 between the first shaft 1101 and the connecting disc 1103, which is smaller than the connecting disc 1103; correspondingly, a perforation 1305 is arranged on the supporting part 1301, which can allow the disc 1104 to pass through. The fan hinge 1 of the present embodiment is supported on the supporting part 1301.

[0064] The limiting structure of the present embodiment comprises two oppositely arranged limiting parts 1303, and a rotating space 1306 is formed between the two limiting parts 1303; the fan hinge 1 is provided with a radially protruding protruding part 106, which is located in the rotating space 1306; the two limiting parts 1303 limit the rotation angle of the protruding part 106 to limit the movement amplitude of the fan hinge 1.

[0065] The profile of the protruding part 106 of the present embodiment is shown in Figure 4 、 Figure 5 and Figure 8 Correspondingly, the two limiting parts 1303 of the present embodiment match the profiles on both sides of the protruding part 106, so that the limiting part 1303 can better block and limit it. An arc-shaped part 1304 is arranged between the two limiting parts 1303, and the two ends of the arc-shaped part 1304 are connected with the two limiting parts 1303 respectively, and together enclose the rotating space 1306.

[0066] Further, the fan hinge 1 of the present embodiment comprises a first upright column 101 and a first assembly piece; the first accommodating groove 105 is arranged on the first upright column 101, and the first assembly piece and the protruding part 106 are both connected to the outer surface of the first upright column 101; the first assembly piece is connected with the fan frame 8.

[0067] The protruding part 106 of the embodiment is provided with a threaded hole 107 which is in communication with the first accommodating groove 105; the locking member 10 is provided with an external thread which is adapted to the threaded hole 107. Specifically, the locking member 10 of the embodiment can adopt a screw, when it is needed to lock the fan hinge 1 and the eccentric shaft 11, the locking member 10 is moved radially inward by rotating it, and is abutted against the first shaft 1101, so that the fixation of the fan hinge 1 and the eccentric shaft 11 is realized. When it is needed to adjust the horizontal position of the fan hinge 1, the locking member 10 is moved radially outward by reversing the rotation, so that the first shaft 1101 is loosened, and the horizontal position of the fan hinge 1 can be changed by rotating the eccentric shaft 11.

[0068] The fan hinge 1 of the embodiment further comprises a first clamping piece 3. The first assembling piece comprises a first connecting section 102 which is connected with the first upright column 101, and a first assembling section 103 which is used for assembling with the fan frame 8; the first assembling section 103 is provided with a first folded edge 104 on the side which is away from the first connecting section 102. When assembling with the fan frame 8, the first folded edge 104 is clamped into the groove position edge of the fan frame 8, the first clamping piece 3 is embedded in the groove position of the fan frame 8 and is clamped into the other edge of the groove position of the fan frame 8, and the first assembling section 103 and the first clamping piece 3 are provided with a first locking element 6 therebetween. Specifically, the first locking element 6 in the embodiment can adopt a screw, and the assembling holes are uniformly preset on the first assembling section 103 and the first clamping piece 3, and the two are locked by the screw, so that the fixation with the fan frame 8 is realized by clamping. Meanwhile, a long screw 5 is further provided during the assembling, and the long screw 5 penetrates the first assembling section 103, the first clamping piece 3 and enters into the profile of the fan frame 8.

[0069] The frame hinge 2 of the embodiment comprises a second upright column 201 and a second assembling piece; the second accommodating groove 203 is arranged on the second upright column 201, the shaft sleeve 12 is arranged in the second accommodating groove 203, and the second shaft 1102 is rotatably inserted into the shaft sleeve 12; the second assembling piece is connected to the outer surface of the first upright column 101; and the second assembling piece is connected with the border frame 9.

[0070] The frame hinge 2 of the embodiment further comprises a second clamping piece 4. The second assembling piece comprises a second connecting section 202 connected with the second upright column 201 and a second assembling section 206 for assembling with the frame 9; the second assembling section 206 is provided with a second folding edge 207 away from one side of the second connecting section 202. When assembling with the frame 9, the second folding edge 207 is clamped into the groove edge of the frame 9, the second clamping piece 4 is embedded in the groove of the frame 9 and clamped into the other edge of the groove of the frame 9, and the second assembling section 206 and the second clamping piece 4 are provided with a second locking element 7. Specifically, the second locking element 7 in the embodiment can adopt a screw, and assembling holes are uniformly preset on the second assembling section 206 and the second clamping piece 4, and the two are locked by the screw, so as to realize the fixation with the frame 9 by clamping. Meanwhile, a long screw 5 is further provided during the assembling, which penetrates the assembling section, the clamping piece and enters into the profile of the leaf frame 8. The structure of the second assembling piece of the embodiment can also be referred to the first assembling piece of the leaf hinge 1.

[0071] The leaf hinge 1 of the embodiment further comprises a sheath 14; the sheath 14 covers the protruding part 106 and the first upright column 101. In addition, the sheath 14 is provided with a first end cover 15 away from the frame hinge 2, the first end cover 15 shields and protects the opening of the end part of the sheath 14 and the opening of the first accommodating groove 105, and meanwhile improves the appearance of the product. For the traditional hinge with horizontal adjustment function, the upright columns of the leaf hinge and the frame hinge will be staggered after the horizontal adjustment, and there is an obvious stagger in appearance. The leaf hinge 1 is covered by the sheath 14 in the embodiment, and even after the horizontal adjustment, the leaf hinge 1 and the frame hinge 2 can still keep coaxial in appearance, the appearance of the improved hinge of the embodiment is more harmonious and beautiful, and the leaf hinge 1 can also be protected.

[0072] The improved hinge of the embodiment has a longitudinal adjustment function in addition to the horizontal adjustment function. The second accommodating groove 203 is provided with a longitudinal adjustment screw 16 away from one end of the leaf hinge 1, and the inner wall of the second accommodating groove 203 is provided with an inner thread 205 matched with the longitudinal adjustment screw 16; the longitudinal adjustment screw 16 is located on the end of the shaft sleeve 12 away from the leaf hinge 1. In this way, the longitudinal adjustment screw 16 can be rotated to control the movement of the longitudinal adjustment screw 16 in the direction towards the leaf hinge 1, so as to lift the shaft sleeve 12. As shown in the figure, the longitudinal adjustment screw 16 is provided with a handle 17, and the longitudinal adjustment screw 16 can be rotated by the handle 17. Figure 3As shown, when the shaft sleeve 12 is moved upward, the eccentric shaft 11, the adjusting sleeve 13 and the fan hinge 1 are also moved upward synchronously due to the contact between the top of the shaft sleeve 12 and the connecting disc 1103 of the eccentric shaft 11, thereby increasing the gap between the fan hinge 1 and the frame hinge 2. When it is required to reduce the gap between the fan hinge 1 and the frame hinge 2 in the longitudinal direction, the longitudinal adjusting screw 16 is rotated reversely, and the longitudinal adjusting screw 16 is moved away from the fan hinge 1, and then the fan hinge 1, the adjusting sleeve 13, the eccentric shaft 11 and the shaft sleeve 12 can be moved by pressing the fan hinge 1, so as to realize the reduction of the gap between the fan hinge 1 and the frame hinge 2.

[0073] Referring to Figure 3 and Figure 6 In the embodiment, the stepped hole 204 is provided at the end of the second accommodating groove 203 of the frame hinge 2 close to the fan hinge 1, the stepped hole 204 is larger than the inner diameter of the second accommodating groove 203, the stepped hole 204 is matched with the connecting ring 1302 of the adjusting sleeve 13, and the connecting ring 1302 is assembled in the stepped hole 204. In the assembling process, the connecting disc 1103 of the eccentric shaft 11 is matched with the connecting ring 1302 of the adjusting sleeve 13, the first shaft 1101 passes through the adjusting sleeve 13, and then the adjusting sleeve 13 and the second shaft 1102 are assembled in the shaft sleeve 12 of the second accommodating groove 203 of the frame hinge 2, at this time, the connecting disc 1103 is supported on the end face of the shaft sleeve 12, and the upper end of the shaft sleeve 12 is supported on the bottom end face of the stepped hole 204, so that the assembling of the eccentric shaft 11, the adjusting sleeve 13 and the frame hinge 2 is completed.

[0074] Further, the two ends of the second accommodating groove 203 are provided with the internal threads 205, so that the frame hinge 2 can be assembled with the longitudinal adjusting screw 16, and the flexibility is further improved. The second end cover 17 is arranged at the end of the second accommodating groove 203 away from the fan hinge 1, for shielding and protecting the second accommodating groove 203, and also making the product more beautiful.

[0075] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, so any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.

Claims

1. An improved adjustable hinge, characterized in that, The fan hinge, the frame hinge, the eccentric shaft and the adjusting sleeve are provided. The fan hinge and the frame hinge are respectively provided with a first accommodating groove and a second accommodating groove for accommodating the eccentric shaft, and the first accommodating groove and the second accommodating groove extend along an axial direction. The eccentric shaft comprises a first shaft, a second shaft and a connecting disc, the connecting disc is located between the first shaft and the second shaft, the first shaft and the second shaft extend along an axial direction and the axes are eccentric, the first shaft is rotatably arranged in the first accommodating groove, and the second shaft is rotatably arranged in the second accommodating groove. The fan hinge is provided with a locking member for locking or releasing the first shaft, the first accommodating groove penetrates the fan hinge. The adjusting sleeve is located on the frame hinge, the eccentric shaft passes through the adjusting sleeve and the connecting disc of the eccentric shaft is located in the adjusting sleeve, and the adjusting sleeve is provided with a limiting structure for limiting the moving range of the fan hinge.

2. The improved adjustable hinge according to claim 1, wherein, The adjusting sleeve comprises a connecting ring and a supporting part, the connecting ring is located on one side of the supporting part facing the second shaft, the connecting disc is located in the connecting ring, and the limiting structure is arranged on one side of the supporting part facing the first shaft.

3. The improved adjustable hinge according to claim 2, wherein, The limiting structure comprises two oppositely arranged limiting parts, a rotating space is formed between the two limiting parts, the fan hinge is provided with a radially protruding protruding part, the protruding part is located in the rotating space, and the two limiting parts limit the rotating angle of the protruding part to limit the moving range of the fan hinge.

4. The improved adjustable hinge according to claim 3, wherein, The fan hinge comprises a first vertical column and a first assembly piece, the first accommodating groove is arranged on the first vertical column, and the first assembly piece and the protruding part are connected to the outer surface of the first vertical column. The first assembly piece is connected with the fan frame.

5. The improved adjustable hinge according to claim 3 or 4, wherein, The protruding part is provided with a threaded hole in communication with the first accommodating groove, and the locking member is provided with an external thread matched with the threaded hole.

6. The improved adjustable hinge according to claim 4, wherein, The fan hinge further comprises a sheath, and the sheath covers the protruding part and the first vertical column.

7. The improved adjustable hinge according to claim 4, wherein, The fan hinge further comprises a first clamping piece. The first assembly piece comprises a first connecting section connected with the first vertical column and a first assembly section for assembling with the fan frame, and one side of the first assembly section away from the first connecting section is provided with a first folding edge. When assembling with the fan frame, the first folding edge is clamped into the edge of the fan frame slot, the first clamping piece is embedded in the fan frame slot and clamped into the other edge of the fan frame slot, and a first locking element is arranged between the first assembly section and the first clamping piece.

8. The improved adjustable hinge of claim 1, wherein, The frame hinge comprises a second vertical column and a second assembly piece, the second accommodating groove is arranged on the second vertical column, a shaft sleeve is arranged in the second accommodating groove, the second shaft is rotatably inserted into the shaft sleeve, the second assembly piece is connected to the outer surface of the second vertical column, and the second assembly piece is connected with the frame.

9. The improved adjustable hinge according to claim 8, wherein, The frame hinge further comprises a second clamping piece. The second assembly piece comprises a second connecting section connected with the second vertical column and a second assembly section for assembling with the frame, and one side of the second assembly section away from the second connecting section is provided with a second folding edge. When assembled with the frame, the second folded edge is inserted into the edge of the frame slot, the second clamping piece is embedded in the frame slot and is inserted into the other edge of the frame slot, and a second locking element is arranged between the second assembly section and the second clamping piece.

10. The improved adjustable hinge according to claim 8 or 9, wherein, The second accommodating groove is provided with a longitudinal adjusting screw away from one end of the fan hinge, and the inner wall of the second accommodating groove is provided with an internal thread matched with the longitudinal adjusting screw; and the longitudinal adjusting screw is arranged on the end of the shaft sleeve away from the fan hinge.