Hinge fixing structure

Abstract

The invention discloses a hinge fixing structure which comprises a base, a hinge assembly, an eccentric shaft and a clamping piece, the base is used for being connected with a frame groove of a frame profile, and the hinge assembly is arranged on the base; the eccentric shaft and the clamping piece are coaxially and rotatably arranged on the base, the clamping piece is used for being matched with the frame groove, the clamping piece is provided with a long end and a short end, when the eccentric shaft rotates to the first position, the long end of the clamping piece is clamped to the inner wall of the frame groove, and the eccentric shaft abuts against one side of the frame groove. According to the hinge base structure, when the eccentric shaft rotates to the first position, the long ends of the clamping pieces are clamped to the two sides of the inner wall of the frame groove, and the eccentric shaft abuts against one side of the frame groove, so that the base can completely sink into the frame groove, the eccentric shaft tightly extrudes the frame profile, and therefore the hinge assembly is fixed, the installation process of the hinge base structure is simplified, and the installation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of doors and windows, and in particular to a hinge fixing structure. Background Art

[0002] The side plate ends of hinge bases currently on the market usually only bear their own weight and tilting tension, and are fixed to the wire frame by fasteners such as screws or jackscrews. In order to withstand the longitudinal pressure on the base and prevent the base from twisting, it is usually necessary to use more than two screws, or to use screws and nut blocks for fixing. However, in the actual installation process, the operating space for fastening screws is often limited, resulting in low overall assembly efficiency of the hinge base.

[0003] In order to solve this problem, the existing technical solution is to manually push the hinge base to the appropriate position for pre-positioning before rotating the eccentric shaft to fix the hinge. If the eccentric shaft is rotated without accurately pushing the hinge base to the correct position in advance, the hinge installation and fixation may be misaligned. In addition, when installing the hinge, the side plate of the hinge base needs to be inserted into the profile slot at an angle, and it cannot be directly pushed into the wire frame slot in parallel. The limited operating space further increases the difficulty of installation.

[0004] It can be seen that the existing hinge base structure has problems of complex operation and limited space during installation, resulting in low installation efficiency, and it is urgent to improve it. Summary of the invention

[0005] The purpose of the present invention is to provide a hinge fixing structure, aiming to solve the problem that the installation process of the hinge base structure in the prior art is complicated and space is limited, resulting in low installation efficiency.

[0006] To solve the above technical problems, the objective of the present invention is achieved through the following technical solutions: providing a hinge fixing structure, comprising: a base, a hinge assembly, an eccentric shaft and a clamping member, the base being used to be connected to a frame groove of a frame profile, and the hinge assembly being arranged on the base; the eccentric shaft being coaxially rotatable with the clamping member and being arranged on the base, the clamping member being used to cooperate with the frame groove, the clamping member having a long end and a short end, and when the eccentric shaft rotates to a first position, the long end of the clamping member is clamped on the inner wall of the frame groove, and the eccentric shaft abuts against one side of the frame groove.

[0007] Furthermore, when the eccentric shaft rotates to the second position, the short ends of the clamping member are located on both sides of the inner wall of the frame groove and there is a gap between the short ends of the clamping member and both sides of the inner wall of the frame groove, and there is a gap between the eccentric shaft and one side of the frame groove.

[0008] Furthermore, the eccentric shaft includes an adjusting body, a special-shaped body and an axial body connected in sequence, the clamping member is provided with a special-shaped hole, the other end of the base is provided with an axial hole, the special-shaped body is arranged in the special-shaped hole, and the axial body is arranged in the axial hole.

[0009] Furthermore, a plurality of groups of positioning members are arranged between the clamping member and the base, and when the eccentric shaft rotates to the first position or the second position, the clamping member and the base are positioned by different positioning members.

[0010] Furthermore, the plurality of positioning members include at least one positioning hole provided on the clamping member and a plurality of positioning protrusions provided on the base.

[0011] Furthermore, the shaft body is a cylinder, and the shaft hole is a cylindrical hole.

[0012] Furthermore, a knurled texture is provided on the periphery of the adjusting body.

[0013] Furthermore, the diagonal contact between the clamping member and the inner wall of the frame groove is an arc-shaped diagonal.

[0014] Furthermore, when the eccentric shaft rotates to the first position, the diagonal contact between the clamping member and the inner wall of the frame groove is interference-fitted with the frame groove.

[0015] Furthermore, the base is an L-shaped component, which is used to be arranged at a corner of the frame groove, and the eccentric shaft and the clamping member are arranged at one end of the L-shaped component.

[0016] The embodiment of the present invention provides a hinge fixing structure, including: a base, a hinge assembly, an eccentric shaft and a clamping member, the base is used to be connected with a frame groove of a frame profile, and the hinge assembly is arranged on the base; the eccentric shaft and the clamping member are coaxially rotated and arranged on the base, the clamping member is used to cooperate with the frame groove, the clamping member has a long end and a short end, and when the eccentric shaft rotates to a first position, the long end of the clamping member is clamped on the inner wall of the frame groove, and the eccentric shaft abuts on one side of the frame groove. The present invention utilizes that when the eccentric shaft rotates to the first position, the long end of the clamping member is clamped on both sides of the inner wall of the frame groove and the eccentric shaft abuts on one side of the frame groove, so that the base can be completely sunk into the frame groove, and the eccentric shaft squeezes the frame profile, thereby fixing the hinge assembly, thereby simplifying the installation process of the hinge base structure and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 A structural diagram of a hinge fixing structure provided by an embodiment of the present invention in an unlocked state Figure 1 ;

[0019] Figure 2 for Figure 1 A magnified view of part A;

[0020] Figure 3 An exploded view of a hinge fixing structure provided by an embodiment of the present invention;

[0021] Figure 4 A structural diagram of a hinge fixing structure in a locked state provided by an embodiment of the present invention Figure 2 ;

[0022] Figure 5 for Figure 4 A magnified view of part B;

[0023] Figure 6 An exploded view of a base, an eccentric shaft and a clamping member provided in an embodiment of the present invention;

[0024] Figure 7 A structural diagram of a hinge fixing structure in a locked state provided by an embodiment of the present invention Figure 3 ;

[0025] Figure 8 for Figure 7 Enlarged view of part C;

[0026] Description of the symbols in the figure:

[0027] 10. frame profile; 11. frame groove; 111. groove body; 112. notch;

[0028] 20. base; 21. shaft hole; 22. positioning protrusion;

[0029] 30. Hinge assembly; 31. Active plate; 32. Driven plate; 33. Long rocker arm; 34. Short rocker arm; 35. Rocker arm base; 36. Limiting part; 37. Connecting rod;

[0030] 40. eccentric shaft; 41. adjusting body; 42. special-shaped body; 43. shaft body;

[0031] 50. Clamping piece; 51. Long end; 52. Short end; 53. Special-shaped hole; 54. Positioning hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0034] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0035] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] Combination Figures 1 to 3 As shown, a hinge fixing structure provided by an embodiment of the present invention includes: a base 20, a hinge assembly 30, an eccentric shaft 40 and a clamping member 50. The base 20 is used to be connected to the frame groove 11 of the frame profile 10, and the hinge assembly 30 is arranged on the base 20; the eccentric shaft 40 and the clamping member 50 are coaxially rotatably arranged on the base 20, and the clamping member 50 is used to cooperate with the frame groove 11. The clamping member 50 has a long end 51 and a short end 52. When the eccentric shaft 40 rotates to the first position, the long end 51 of the clamping member 50 is clamped on the inner wall of the frame groove 11, and the eccentric shaft 40 abuts against one side of the frame groove 11.

[0037] In this embodiment, one end of the base 20 is fixedly connected to one end of the frame profile 10, and the hinge assembly 30 is installed at one end of the base 20 for connecting with the door and window sash to realize rotation and opening and closing. The other end of the frame profile 10 is provided with a frame groove 11, and the other end of the base 20 is inserted and extends into the frame groove 11. The eccentric shaft 40 passes through the clamping member 50 and is pivotally connected to the other end of the base 20, so that the clamping member 50 is located in the frame groove 11. The clamping member 50 has a long end 51 and a short end 52, wherein the short end 52 is close to the connection of the eccentric shaft 40, and the long end 51 is far away from the eccentric shaft 40. The long end 51 of the clamping member 50 is longer than the short end 52, and is used to span a larger distance when rotating to be clamped on the inner wall surface of the frame groove 11, while the short end 52 is shorter to ensure that the clamping member 50 does not interfere with the inner wall of the frame groove 11 when rotating in the frame groove 11. Through the above structural design, one end of the base 20 is fixed on the frame profile 10, and the other end forms an adjustable connection with the frame groove 11 through the eccentric shaft 40 and the clamping member 50, so that the hinge assembly 30 can be stably installed and the position can be adjusted within a certain range. After the components are assembled, the normal opening and closing of the door and window will not be affected.

[0038] The installation and adjustment process of the hinge fixing structure is as follows: first, align the other end of the base 20 with the frame groove 11 of the frame profile 10, and push the base 20 into the frame groove 11, so that the base 20 is partially embedded in the frame groove 11. At this time, the clamping member 50 can rotate freely with the eccentric shaft 40 and is in a loose state (i.e., an unlocked state) so as to smoothly enter the frame groove 11 without blocking. After the base 20 is pre-installed and positioned, the eccentric shaft 40 is rotated by a tool so that the eccentric shaft 40 rotates around its axis (for example, rotates clockwise to a locked position). Since the eccentric shaft 40 is an eccentric structure (its rotation axis is eccentrically arranged relative to its own circumferential center), the eccentric shaft 40 gradually approaches and abuts against one side inner wall of the frame groove 11 during the rotation process. At the same time, the eccentric shaft 40 drives the clamping member 50 to rotate synchronously, causing the long end 51 of the clamping member 50 to open outward and gradually clamp onto the inner walls on the left and right sides of the frame groove 11. When the eccentric shaft 40 continues to rotate to the first position (locking position), the long ends 51 of the clamping member 50 are clamped on the inner walls on both sides of the frame groove 11 ; the eccentric shaft 40 is also pressed against the inner wall on one side of the frame groove 11 at this time.

[0039] Through the cooperation of the eccentric shaft 40 and the clamping member 50, the base 20 is squeezed and locked in the frame groove 11 from multiple directions at the same time: on the one hand, the long end 51 of the clamping member 50 horizontally supports the inner wall of the frame groove 11 to achieve lateral clamping and fixing of the base 20; on the other hand, the eccentric shaft 40 presses against the inner wall of the frame groove 11, generating a reaction force to squeeze and move the base 20 toward the other side of the frame groove 11, so that the base 20 is close to the inner wall of the side. As the eccentric shaft 40 rotates to the locking position, the inner wall of the frame profile 10 also generates a downward thrust on the base 20, prompting the base 20 to move slightly along the frame groove 11 until it is completely in place and fits, which further enhances the fixing stability of the base 20 and prevents it from shaking in the frame groove 11 in the up and down directions. At this point, the base 20 is firmly locked in the frame groove 11, and the load on the hinge assembly 30 can be transmitted to the frame profile 10 through the base 20, so that the entire hinge fixing structure achieves the purpose of stable connection and locking.

[0040] Combination Figure 4 and Figure 5 As shown, in one embodiment, when the eccentric shaft 40 rotates to the second position, the short ends 52 of the clamping member 50 are located on both sides of the inner wall of the frame groove 11 and there is a gap between the short ends 52 of the clamping member 50 and both sides of the inner wall of the frame groove 11, and there is a gap between the eccentric shaft 40 and one side of the frame groove 11.

[0041] In this embodiment, when the eccentric shaft 40 rotates to the second position, the short end 52 of the clamping member 50 is retracted to a relatively close position, at which time the short end 52 is still located on both sides of the inner wall of the frame groove 11 but does not contact the inner wall of the frame groove 11, and there is a gap between the short end 52 of the clamping member 50 and both sides of the inner wall of the frame groove 11; at the same time, the eccentric shaft 40 also separates from the side wall of the frame groove 11, and a gap is formed between the eccentric shaft 40 and one side of the frame groove 11. At this time, the clamping member 50 does not apply pressure to the frame groove 11, and the base 20 is in a loose state, and can be removed from the frame groove 11 or adjusted in position.

[0042] When the hinge position needs to be adjusted or disassembled, the eccentric shaft 40 only needs to be rotated in the opposite direction to another position (for example, a second position 90° different from the first position), so that the long end 51 of the clamping member 50 can be relatively retracted, and its supporting effect on the inner wall of the frame groove 11 is released, and the eccentric shaft 40 is separated from the tight contact with the inner wall of the frame groove 11. At this time, the hinge fixing structure is in a loose state, and the base 20 can slide or move appropriately in the frame groove 11 along the groove length direction. The installer can easily adjust the position of the base 20 in the frame groove 11 to correct the installation height or position of the hinge assembly 30. After adjusting to the desired position, the eccentric shaft 40 is rotated again to the locking position, and the clamping member 50 will tighten the inner wall of the frame groove 11 again to fix the base, so as to achieve rapid positioning and locking.

[0043] In one embodiment, the hinge assembly 30 includes: an active plate 31, a driven plate 32, a long rocker arm 33, a short rocker arm 34, a rocker arm base 35, a limiting portion 36 and a connecting rod 37, one end of the active plate 31 is rotatably connected to the base 20, the other end of the active plate 31 is rotatably connected to the long rocker arm 33, one end of the driven plate 32 is rotatably connected to the base 20, and the other end of the driven plate 32 is rotatably connected to the long rocker arm 33; one end of the short rocker arm 34 is rotatably connected to the rocker arm base 35, the other end of the short rocker arm 34 is rotatably connected to the long rocker arm 33, and the short rocker arm 34 is clamped between the rocker arm base 35 and the long rocker arm 33, the rocker arm base 35 is rotatably connected to the long rocker arm 33, the limiting portion 36 is fixedly connected to the long rocker arm 33, one end of the connecting rod 37 is fixedly connected to the limiting portion 36, and the other end is fixedly connected to the rocker arm base 35.

[0044] In this embodiment, one end of the active plate 31 is rotatably connected to the base 20. Through the rotatable connection, the active plate 31 can rotate with the base 20 around its connection point and transmit the rotational torque to other connected parts. The other end of the active plate 31 is rotatably connected to the long rocker arm 33, so that the active plate 31 can drive the long rocker arm 33 to produce corresponding movement. One end of the driven plate 32 is rotatably connected to the base 20, similar to the connection method of the active plate 31, allowing the driven plate 32 to rotate relative to the base 20. The other end is rotatably connected to the long rocker arm 33, allowing the driven plate 32 to complete the movement synchronized with the active plate 31 through the movement of the long rocker arm 33. The long rocker arm 33 is an important transmission component in the hinge assembly 30, one end of which is rotatably connected to the other end of the active plate 31 and the driven plate 32 respectively, and through the connection of these two points, the long rocker arm 33 can move synchronously with the active plate 31 and the driven plate 32. The other end of the long rocker arm 33 is connected to the short rocker arm 34 to form the main transmission chain of the rocker system. One end of the short rocker arm 34 is rotatably connected to the rocker arm base 35, and the other end is rotatably connected to the long rocker arm 33. The short rocker arm 34 plays a role in transmitting rotation between the rocker arm base 35 and the long rocker arm 33. The design of the short rocker arm 34 ensures that it is closely matched between the rocker arm base 35 and the long rocker arm 33, preventing excessive swinging and stabilizing the movement of the entire rocker arm system. The rocker arm base 35 is rotatably connected to the long rocker arm 33 to form a support part of the hinge. Through the rotatable connection with the long rocker arm 33, the rocker arm base 35 plays a bearing and supporting role in the entire hinge movement, ensuring the stable operation of the rocker arm system. The limiter 36 is fixedly connected to the long rocker arm 33 to limit the maximum rotation range of the long rocker arm 33. One end of the connecting rod 37 is fixedly connected to the limiter 36, and the other end is fixedly connected to the rocker arm base 35. Through its connection, the connecting rod 37 ensures that the relative position relationship between the limiter 36 and the rocker arm base 35 is stable to prevent looseness or misalignment.

[0045] Combination Figure 6As shown, in one embodiment, the eccentric shaft 40 includes an adjusting body 41, a special-shaped body 42 and an axial body 43 connected in sequence, a special-shaped hole 53 is provided on the clamping member 50, an axial hole 21 is provided at the other end of the base 20, the special-shaped body 42 is provided in the special-shaped hole 53, and the axial body 43 is provided in the axial hole 21.

[0046] In this embodiment, the adjusting body 41 plays a role of connection and adjustment by connecting with the special-shaped body 42, so that the eccentric shaft 40 can be accurately adjusted during the installation process. The special-shaped body 42 is connected to the adjusting body 41 and has a special shape structure (such as a hexagon or a pentagon, etc.), and one end of the special-shaped body 42 is adapted to the special-shaped hole 53 on the clamp 50. The shape of the special-shaped body 42 ensures that when the eccentric shaft 40 is rotated, the clamp 50 can be fixed and adjusted by closely matching with the special-shaped hole 53, thereby enhancing the stability and locking effect of the eccentric shaft 40. The shaft body 43 is connected to the other end of the special-shaped body 42. The design of the shaft body 43 enables it to be inserted into and adapted to the shaft hole 21 on the base 20. The clamp 50 is provided with a special-shaped hole 53 for accommodating the special-shaped body 42. The shape and size of the special-shaped hole 53 match the special-shaped body 42, so that the special-shaped body 42 can be inserted therein and form a close fit with the clamping member 50, ensuring that the rotation of the eccentric shaft 40 can effectively drive the adjustment of the clamping member 50. The other end of the base 20 is provided with an axial hole 21 for accommodating the shaft body 43. The inner diameter of the axial hole 21 matches the outer diameter of the shaft body 43, so that the shaft body 43 can be smoothly installed therein to complete the adjustment operation.

[0047] Furthermore, the eccentric shaft 40 realizes the adjustment function of the clamping member 50 through the coordinated action of the adjustment body 41, the special-shaped body 42 and the shaft body 43. When the adjustment body 41 rotates, the special-shaped body 42 and the special-shaped hole 53 on the clamping member 50 are closely matched, driving the clamping member 50 to perform corresponding adjustment movement. At the same time, the shaft body 43 completes the displacement adjustment of the base 20 by matching with the shaft hole 21 on the base 20.

[0048] In one embodiment, a plurality of positioning members are disposed between the clamping member 50 and the base 20 , and when the eccentric shaft 40 rotates to the first position or the second position, the clamping member 50 and the base 20 are positioned by different positioning members.

[0049] In this embodiment, the purpose of multiple groups of positioning members set between the clamp 50 and the base 20 is to ensure that the relative position between the clamp 50 and the base 20 is stable when the eccentric shaft 40 rotates to different positions. The design of each group of positioning members enables the clamp 50 and the base 20 to dock at the corresponding position and prevent displacement or loosening during use. Multiple groups of positioning members are arranged on the contact surface of the clamp 50 and the base 20 at a certain spacing or angle to ensure that when the eccentric shaft 40 rotates, different positioning members can achieve positioning and locking according to different rotation angles. Each group of positioning members can play a role when the eccentric shaft rotates to the corresponding position, ensuring that the relative position between the clamp 50 and the base 20 is stable.

[0050] Further, when the eccentric shaft 40 rotates to the first position or the second position, the clamping member 50 and the base 20 are positioned by different positioning members. The rotation of the eccentric shaft 40 causes different positioning members to contact the base 20, so that the relative position between the clamping member 50 and the base 20 is controlled to prevent unnecessary displacement.

[0051] In one embodiment, the plurality of positioning members include at least one positioning hole 54 disposed on the clamping member 50 and a plurality of positioning protrusions 22 disposed on the base 20 .

[0052] In this embodiment, a positioning hole 54 is provided on the clamp 50 as a component that cooperates with the positioning protrusion 22 on the base 20. The design of the positioning hole 54 ensures that the clamp 50 can dock with the positioning protrusion 22 on the base 20 when it is rotated to a specified position, thereby achieving stable positioning between the clamp 50 and the base 20. The size and position of the positioning hole 54 match the positioning protrusion 22 on the base 20, ensuring a tight fit during positioning. A plurality of positioning protrusions 22 are evenly provided on the base 20, and the number and position of the positioning protrusions 22 correspond to the positioning holes 54 on the clamp 50. Each positioning protrusion 22 is designed to cooperate with the positioning hole 54 on the clamp 50. By inserting the positioning hole 54, the clamp 50 and the base 20 are firmly connected, reducing the possibility of misalignment or loosening of the clamp 50 during the rotation of the eccentric shaft 40.

[0053] Of course, in this embodiment, there is one positioning hole 54 and three positioning protrusions 22. When the clamping member 50 rotates, the positioning hole 54 can be driven to align with one of the positioning protrusions 22. It can also be the opposite, that is, there are three positioning holes 54 and one positioning protrusion 22. The number of positioning holes 54 and positioning protrusions 22 can be set at will, and is not limited here.

[0054] In one embodiment, the shaft body 43 is a cylinder, and the shaft hole 21 is a cylindrical hole.

[0055] In this embodiment, the shaft body 43 is in the shape of a cylinder, and the outer diameter and cylindrical shape of the shaft body 43 make it contact with the inner wall of the shaft hole 21 during rotation, thereby providing stable rotation support. The shaft hole 21 is a cylindrical hole, and the inner diameter matches the outer diameter of the shaft body 43. The design of the cylindrical hole ensures that the shaft body 43 can be inserted into the shaft hole 21 and maintains the stability of the shaft body 43 during rotation. The inner wall of the cylindrical hole matches the outer surface of the shaft body 43, which can reduce friction and instability during rotation.

[0056] In one embodiment, a knurled texture is provided on the periphery of the adjusting body 41 .

[0057] In this embodiment, a knurled texture is provided on the surrounding surface of the adjusting body 41. The knurled texture increases the surface friction by etching or pressing a fine pattern structure on the outer surface of the adjusting body 41, thereby enhancing the friction when the adjusting body 41 is pressed against the frame groove 11.

[0058] In one embodiment, the diagonal contact between the clamping member 50 and the inner wall of the frame groove 11 is an arc-shaped diagonal contact.

[0059] In the present embodiment, when the clamp 50 contacts the inner wall of the frame groove 11, the diagonal part of the contact is designed as an arc diagonal. This design makes the contact between the clamp 50 and the frame groove 11 smoother and more uniform. By adopting the arc diagonal, the pressure distribution between the contact surfaces is more uniform. The arc diagonal means that the angle of the contact part between the clamp 50 and the inner wall of the frame groove 11 is designed by bending to form an arc shape. This design provides a softer contact method. Compared with the right-angle or acute-angle design, the arc diagonal can better adapt to the shape of the frame groove 11, improve the fit between the clamp 50 and the frame groove 11, make the switching between the long end 51, the short end 52 and the frame groove 11 smoother, and avoid the situation of jamming or jamming during the rotation of the long end 51 and the short end 52. Specifically, when the clamp 50 rotates clockwise, the long end 51 gradually fits into the frame groove 11 , locking the base 20 ; when the clamp 50 rotates counterclockwise, the long end 51 gradually disengages from the frame groove 11 , releasing the base 20 .

[0060] In one embodiment, when the eccentric shaft 40 rotates to the first position, the diagonal contact between the clamping member 50 and the inner wall of the frame groove 11 is interference fit with the frame groove 11 .

[0061] In this embodiment, when the inner side of the clamping member 50 contacts the inner wall of the frame groove 11, the thickness is relatively thin; as the clamping member 50 gradually extends to the inner side, the thickness gradually becomes thicker. This design enables the clamping member 50 to be smoothly inserted into the frame groove 11 during the rotation process. That is, the portion of the clamping member 50 that is tilted toward the frame groove 11 can be interference-fitted with the frame groove 11 when it is matched with the frame groove 11.

[0062] Combination Figure 7 and Figure 8 As shown, in one embodiment, the base 20 is an L-shaped member, which is used to be arranged at the corner of the frame groove 11, and the eccentric shaft 40 and the clamping member 50 are arranged at one end of the L-shaped member.

[0063] In this embodiment, the base is set as an L-shaped member, which can be well matched with the frame groove 11. When assembled, the L-shaped member is assembled at the corner of the frame groove 11 (i.e., as close to the corner as possible). The eccentric shaft 40 and the clamping member 50 can be set at one end of the L-shaped member, which is convenient for matching with the L-shaped member. The frame groove 11 includes a groove body 111 and a notch 112 extending toward each other along the outer edges of both sides of the groove body 111. A part of the base 20 is located in the groove body 111, and the other part is located in the notch 112; the clamping member 50 is located in the groove body 111, and the adjustment body 41 is located in the notch 112. When the base 20 is installed, first push a part of the base 20 into the groove body 111 to ensure that it is located in the groove body 111. This part of the base 20 is fixed in the groove body 111 by the clamping member 50. At the same time, another part of the base 20 extends into the notch 112. At this time, the adjusting body 41 is positioned in the notch 112 , and further provides a locking force on the base 20 through contact and friction with the inner wall of the frame groove 11 .

[0064] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A hinge fixing structure, characterized in that: include: A base, a hinge assembly, an eccentric shaft and a clamping member, wherein the base is used to be connected to a frame groove of a frame profile, and the hinge assembly is arranged on the base; The eccentric shaft is coaxially rotatable with the clamping member and is arranged on the base. The clamping member is used to cooperate with the frame groove. The clamping member has a long end and a short end. When the eccentric shaft rotates to a first position, the long end of the clamping member is clamped on the inner wall of the frame groove, and the eccentric shaft abuts against one side of the frame groove.

2. The hinge fixing structure according to claim 1, characterized in that: When the eccentric shaft rotates to the second position, the short ends of the clamping member are located on both sides of the inner wall of the frame groove and there is a gap between the short ends of the clamping member and both sides of the inner wall of the frame groove, and there is a gap between the eccentric shaft and one side of the frame groove.

3. The hinge fixing structure according to claim 1, characterized in that: The eccentric shaft comprises an adjusting body, a special-shaped body and an axial body which are connected in sequence. The clamping member is provided with a special-shaped hole, the other end of the base is provided with an axial hole, the special-shaped body is arranged in the special-shaped hole, and the axial body is arranged in the axial hole.

4. The hinge fixing structure according to claim 2, characterized in that: A plurality of groups of positioning members are arranged between the clamping member and the base. When the eccentric shaft rotates to the first position or the second position, the clamping member and the base are positioned by different positioning members.

5. The hinge fixing structure according to claim 4, characterized in that: The plurality of positioning members include at least one positioning hole arranged on the clamping member and a plurality of positioning protrusions arranged on the base.

6. The hinge fixing structure according to claim 3, characterized in that: The shaft body is a cylinder, and the shaft hole is a cylindrical hole.

7. The hinge fixing structure according to claim 3, characterized in that: The periphery of the adjusting body is provided with a knurled texture.

8. The hinge fixing structure according to claim 1, characterized in that: The diagonal contact between the clamping member and the inner wall of the frame groove is an arc-shaped diagonal.

9. The hinge fixing structure according to claim 1, characterized in that: When the eccentric shaft rotates to the first position, the diagonal contact between the clamping member and the inner wall of the frame groove is interference-fitted with the frame groove.

10. The hinge fixing structure according to claim 3, characterized in that: The base is an L-shaped component, which is used to be arranged at the corner of the frame groove, and the eccentric shaft and the clamping member are arranged at one end of the L-shaped component.

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