Hinge fixing structure

Abstract

The utility model 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. And the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to a hinge fixing structure. Background Technology

[0002] Currently available hinge bases typically only bear their own weight and tipping force on the side plate, and are fixed to the frame using fasteners such as screws or set screws. To withstand the longitudinal pressure on the base and prevent torsion, two or more screws are usually required, or a combination of screws and nuts is used for fixing. However, in actual installation, the operating space for tightening the screws is often limited, resulting in low overall assembly efficiency of the hinge base.

[0003] To address this issue, existing solutions involve manually pushing the hinge base to a pre-positioned location before rotating the eccentric shaft to fix the hinge. However, if the hinge base is not precisely positioned beforehand, misalignment of the hinge installation may occur. Furthermore, installing the hinge requires the hinge base's side plate to be inserted at an angle into the profile slot; it cannot be directly pushed parallel into the wire frame slot, further complicating the installation process due to limited operating space.

[0004] It is evident that the existing hinge base structure suffers from complex operation and limited space during installation, resulting in low installation efficiency, and urgently needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a hinge fixing structure that solves the problems of complex installation process and limited space in the existing hinge base structure, resulting in low installation efficiency.

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is achieved through the following technical solution: providing a hinge fixing structure, including: a base, a hinge assembly, an eccentric shaft, and a clamping member. The base is used to connect with the frame groove of the frame profile, and the hinge assembly is disposed on the base. The eccentric shaft and the clamping member are coaxially and rotatably disposed 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 engaged with 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 end of the clamping member is located on both sides of the inner wall of the frame groove, and there is a gap between the short end 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 adjustment body, a shaped body, and a shaft body connected in sequence. The clamping member is provided with a shaped hole, and the other end of the base is provided with a shaft hole. The shaped body is disposed in the shaped hole, and the shaft body is disposed in the shaft hole.

[0009] Furthermore, multiple sets of positioning elements are provided 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 elements.

[0010] Furthermore, the plurality of positioning elements includes at least one positioning hole disposed on the clamping member and a plurality of positioning protrusions disposed on the base.

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

[0012] Furthermore, the periphery of the adjustment body is provided with a knurled texture.

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

[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 disposed at the corner of the frame groove, and the eccentric shaft and the clamping member are disposed at one end of the L-shaped component.

[0016] This utility model provides a hinge fixing structure, including: a base, a hinge assembly, an eccentric shaft, and a clamping member. The base is used to connect with the frame groove of a frame profile, and the hinge assembly is disposed on the base. The eccentric shaft and the clamping member are coaxially rotatably disposed on the base. The clamping member is used to cooperate with the frame groove and 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 engaged with the inner wall of the frame groove, and the eccentric shaft abuts against one side of the frame groove. This utility model utilizes the fact that when the eccentric shaft rotates to the first position, the long end of the clamping member is engaged with both 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 be completely sunk into the frame groove, and the eccentric shaft squeezes the frame profile, thereby fixing the hinge assembly. This simplifies the installation process of the hinge base structure and improves installation efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a hinge fixing structure in an unlocked state provided by an embodiment of this utility model. Figure 1 ;

[0019] Figure 2 for Figure 1 Enlarged view of section A;

[0020] Figure 3 An exploded view of a hinge fixing structure provided in an embodiment of this utility model;

[0021] Figure 4 A schematic diagram of a hinge fixing structure in the locked state provided by an embodiment of this utility model. Figure 2 ;

[0022] Figure 5 for Figure 4 Enlarged view of section B;

[0023] Figure 6 Exploded view of the base, eccentric shaft and clamping member provided in the embodiment of this utility model;

[0024] Figure 7 A schematic diagram of a hinge fixing structure in the locked state provided by an embodiment of this utility model. Figure 3 ;

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

[0026] Explanation of the markings in the image:

[0027] 10. Frame profile; 11. Frame channel; 111. Channel body; 112. Channel opening;

[0028] 20. Base; 21. Shaft hole; 22. Positioning protrusion;

[0029] 30. Hinge assembly; 31. Driving 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. Adjustment body; 42. Irregular shape; 43. Shaft body;

[0031] 50. Clamping component; 51. Long end; 52. Short end; 53. Irregular hole; 54. Positioning hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

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

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

[0035] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0036] Combination Figures 1 to 3 As shown in the figure, the hinge fixing structure provided by this utility model includes: a base 20, a hinge assembly 30, an eccentric shaft 40, and a clamping member 50. The base 20 is used to connect with the frame groove 11 of the frame profile 10, and the hinge assembly 30 is disposed on the base 20. The eccentric shaft 40 and the clamping member 50 are coaxially rotatably disposed on the base 20. 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 engaged with 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 / window sash to achieve rotational opening and closing. The other end of the frame profile 10 has a frame groove 11, and the other end of the base 20 is inserted into and extends into the frame groove 11. An 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 closer to the connection point of the eccentric shaft 40, and the long end 51 is farther away from the eccentric shaft 40. The long end 51 of the clamping member 50 is longer than the short end 52, allowing it to span a greater distance during rotation to engage with 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 within it. Through the above structural design, one end of the base 20 is fixed to the frame profile 10, and the other end is connected to the frame groove 11 through the eccentric shaft 40 and the clamping member 50 to form an adjustable connection, so that the hinge assembly 30 can be stably installed and its position can be adjusted within a certain range. After the components are assembled, the normal opening and closing of the door and window is not 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 that it can smoothly enter the frame groove 11 without jamming. After the base 20 is pre-positioned, use a tool to rotate the eccentric shaft 40 so that the eccentric shaft 40 rotates around its axis (for example, rotates clockwise to the locked position). Since the eccentric shaft 40 is an eccentric structure (its axis of rotation is eccentrically set relative to its own circumference center), the eccentric shaft 40 gradually approaches and abuts against one side of the inner wall of the frame groove 11 during the rotation. 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 engage with the inner walls on the left and right sides of the frame groove 11. As the eccentric shaft 40 continues to rotate to the first position (locked position), the long end 51 of the clamping member 50 is engaged with the inner walls on both sides of the frame groove 11; at this time, the eccentric shaft 40 is also pressed against the inner wall on one side of the frame groove 11.

[0039] Through the cooperation of the eccentric shaft 40 and the clamping member 50, the base 20 is simultaneously pressed and locked in the frame groove 11 from multiple directions: on the one hand, the long end 51 of the clamping member 50 laterally supports the inner wall of the frame groove 11, realizing the 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 press and move the base 20 towards the other side of the frame groove 11, so that the base 20 is tightly attached to the inner wall of that side. As the eccentric shaft 40 rotates to the locked position, the inner wall of the frame profile 10 also generates a downward thrust on the base 20, causing the base 20 to move slightly along the frame groove 11 until it is fully in place and attached, which further enhances the fixing stability of the base 20 and prevents it from shaking in the vertical direction within the frame groove 11. At this point, the base 20 is firmly locked in the frame groove 11, and the load on the hinge assembly 30 can be transferred to the frame profile 10 through the base 20. 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 end 52 of the clamping member 50 is located on both sides of the inner wall of the frame groove 11 and there is a gap between the short end 52 of the clamping member 50 and the two 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 retracts to a relatively close position. At this 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 the two sides of the inner wall of the frame groove 11; at the same time, the eccentric shaft 40 also disengages 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, which can be removed from the frame groove 11 or its position adjusted.

[0042] When it is necessary to adjust the hinge position or disassemble, simply rotate the eccentric shaft 40 in the opposite direction to another position (e.g., a second position 90° different from the first position). This will cause the long end 51 of the clamping member 50 to retract relative to each other, releasing its supporting effect on the inner wall of the frame groove 11. At the same time, the eccentric shaft 40 will disengage 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 along the length of the groove in the frame groove 11. 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, rotate the eccentric shaft 40 again to the locking position. The clamping member 50 will then tighten again against the inner wall of the frame groove 11 to fix the base, achieving quick 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 part 36, and a connecting rod 37. One end of the active plate 31 is rotatably connected to the base 20, and 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, and the other end of the short rocker arm 34 is rotatably connected to the long rocker arm 33. The short rocker arm 34 is sandwiched 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 part 36 is fixedly connected to the long rocker arm 33. One end of the connecting rod 37 is fixedly connected to the limiting part 36, and the other end is fixedly connected to the rocker arm base 35.

[0044] In this embodiment, one end of the driving plate 31 is rotatably connected to the base 20. Through this rotatable connection, the driving plate 31 can rotate around its connection point with the base 20, transmitting torque to other connecting components. The other end of the driving plate 31 is rotatably connected to the long rocker arm 33, enabling the driving plate 31 to 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 of the driving 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 actions synchronized with the driving 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 it is rotatably connected to the other ends of both the driving plate 31 and the driven plate 32. Through this connection, the long rocker arm 33 can move synchronously with both the driving plate 31 and the driven plate 32. The other end of the long rocker arm 33 is connected to the short rocker arm 34, forming the main transmission chain of the rocker arm 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 a tight fit between the rocker arm base 35 and the long rocker arm 33, preventing excessive swaying and stabilizing the movement of the entire rocker arm system. The rocker arm base 35 is rotatably connected to the long rocker arm 33, forming the support part of the hinge. Through its rotatable connection with the long rocker arm 33, the rocker arm base 35 plays a role in bearing and supporting the entire hinge movement, ensuring the stable operation of the rocker arm system. The limiting part 36 is fixedly connected to the long rocker arm 33, limiting the maximum rotation range of the long rocker arm 33. One end of the connecting rod 37 is fixedly connected to the limiting part 36, and the other end is fixedly connected to the rocker arm base 35. Through its connecting function, the connecting rod 37 ensures the stability of the relative positional relationship between the limiting part 36 and the rocker arm base 35, preventing loosening or misalignment.

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

[0046] In this embodiment, the adjusting body 41, through its connection with the irregular-shaped body 42, serves both a connecting and adjusting function, enabling precise adjustment of the eccentric shaft 40 during installation. The irregular-shaped body 42, connected to the adjusting body 41, possesses a special shape (such as hexagonal or pentagonal), with one end fitting into the irregular-shaped hole 53 on the clamping member 50. The shape of the irregular-shaped body 42 ensures that, when the eccentric shaft 40 rotates, it can achieve the functions of fixing and adjusting the clamping member 50 through a tight fit with the irregular-shaped hole 53, enhancing the stability and locking effect of the eccentric shaft 40. A shaft 43 is connected to the other end of the irregular-shaped body 42. The design of the shaft 43 allows it to be inserted into and fitted with the shaft hole 21 on the base 20. The clamping member 50 is provided with an irregular-shaped hole 53 to accommodate the irregular-shaped body 42. The shape and size of the irregular hole 53 match the irregular body 42, allowing the irregular body 42 to be inserted into it and forming a tight 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 a shaft hole 21 for accommodating the shaft 43. The inner diameter of the shaft hole 21 matches the outer diameter of the shaft 43, allowing the shaft 43 to be smoothly installed within it for adjustment operations.

[0047] Furthermore, the eccentric shaft 40, through the coordinated action of the adjusting body 41, the irregular body 42, and the shaft 43, achieves the adjustment function of the clamping member 50. When the adjusting body 41 rotates, the irregular body 42 closely engages with the irregular hole 53 on the clamping member 50, causing the clamping member 50 to undergo corresponding adjustment movements. Simultaneously, the shaft 43, through its engagement with the shaft hole 21 on the base 20, completes the displacement adjustment of the base 20.

[0048] In one embodiment, multiple sets of positioning elements are provided between the clamping member 50 and the base 20. 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 elements.

[0049] In this embodiment, multiple sets of positioning elements are arranged between the clamping member 50 and the base 20 to ensure the relative position between the clamping member 50 and the base 20 remains stable when the eccentric shaft 40 rotates to different positions. The design of each set of positioning elements ensures that the clamping member 50 and the base 20 can mate at corresponding positions, preventing displacement or loosening during use. The multiple sets of positioning elements are arranged at certain intervals or angles on the contact surfaces of the clamping member 50 and the base 20, ensuring that positioning and locking can be achieved through different positioning elements according to different rotation angles when the eccentric shaft 40 rotates. Each set of positioning elements functions when the eccentric shaft rotates to a corresponding position, ensuring the relative position stability between the clamping member 50 and the base 20.

[0050] Furthermore, when the eccentric shaft 40 rotates to the first or second position, the clamping member 50 and the base 20 are positioned by different positioning elements. The rotation of the eccentric shaft 40 causes the different positioning elements to come into contact with the base 20, thereby controlling the relative position between the clamping member 50 and the base 20 and preventing unnecessary displacement.

[0051] In one embodiment, the plurality of positioning elements includes 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 clamping member 50, serving as a component that mates with the positioning protrusion 22 on the base 20. The design of the positioning hole 54 ensures that the clamping member 50 can mate with the positioning protrusion 22 on the base 20 when rotated to a designated position, thereby achieving stable positioning between the clamping member 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. Multiple positioning protrusions 22 are evenly distributed on the base 20, and the number and position of the positioning protrusions 22 correspond to the positioning holes 54 on the clamping member 50. Each positioning protrusion 22 is designed to mate with the positioning hole 54 on the clamping member 50. By inserting into the positioning hole 54, a stable connection is formed between the clamping member 50 and the base 20, reducing the possibility of misalignment or loosening of the clamping member 50 during the rotation of the eccentric shaft 40.

[0053] Of course, in this embodiment, there is specifically one positioning hole 54 and three positioning protrusions 22. When the clamping member 50 rotates, it can align the positioning hole 54 with one of the positioning protrusions 22. Alternatively, it can be the other way around, with three positioning holes 54 and one positioning protrusion 22. The number of positioning holes 54 and positioning protrusions 22 can be set arbitrarily and is not limited here.

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

[0055] In this embodiment, the shaft 43 is cylindrical. Its outer diameter and cylindrical shape allow it to contact the inner wall of the shaft hole 21 during rotation, thus providing stable rotational support. The shaft hole 21 is a cylindrical hole, with its inner diameter matching the outer diameter of the shaft 43. This cylindrical hole design ensures that the shaft 43 can be inserted into the shaft hole 21 and maintains its stability during rotation. The inner wall of the cylindrical hole fits against the outer surface of the shaft 43, reducing friction and instability during rotation.

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

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

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

[0059] In this embodiment, when the clamping member 50 contacts the inner wall of the frame groove 11, the diagonal portion of the contact area is designed as an arc. This design makes the contact between the clamping member 50 and the frame groove 11 smoother and more uniform. By using an arc-shaped diagonal, the pressure distribution between the contact surfaces is more uniform. The arc-shaped diagonal refers to the angle of the contact portion between the clamping member 50 and the inner wall of the frame groove 11 being designed by bending to form an arc shape. This design provides a softer contact method. Compared with right angle or acute angle designs, the arc-shaped diagonal can better adapt to the shape of the frame groove 11, improve the fit between the clamping member 50 and the frame groove 11, and make the switching between the long end 51, the short end 52 and the frame groove 11 smoother, avoiding jamming or stuck situations during the rotation of the long end 51 and the short end 52. Specifically, when the clamping member 50 rotates clockwise, the long end 51 gradually engages in the frame groove 11, thereby locking the base 20; when the clamping member 50 rotates counterclockwise, the long end 51 gradually disengages from the frame groove 11, thereby 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-fitted with the frame groove 11.

[0061] In this embodiment, the inner side of the clamping member 50 is relatively thin when it contacts the inner wall of the frame groove 11; as the clamping member 50 gradually extends to the inner side, its thickness gradually increases. This design allows the clamping member 50 to smoothly engage with the frame groove 11 during rotation. That is, the part of the clamping member 50 that protrudes towards the frame groove 11 can have an interference fit with the frame groove 11 when it engages with the frame groove 11.

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

[0063] In this embodiment, the base is configured as an L-shaped component, which can fit well with the frame groove 11. During assembly, the L-shaped component 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 component for easy engagement with it. The frame groove 11 includes a groove body 111 and slots 112 extending towards each other along the outer edges of both sides of the groove body 111. A portion of the base 20 is located in the groove body 111, and another portion is located in the slot 112. The clamping member 50 is located in the groove body 111, and the adjusting body 41 is located in the slot 112. When the base 20 is installed, a portion of the base 20 is first pushed into the groove body 111 to ensure it is located within the groove body 111. This portion of the base 20 is fixed in the groove body 111 by the clamping member 50. At the same time, the other portion of the base 20 extends into the slot 112. At this time, the adjusting body 41 is positioned inside the slot 112, and through contact and friction with the inner wall of the frame slot 11, it further provides locking force on the base 20.

[0064] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A hinge fixing structure, characterized in that, include: The base, hinge assembly, eccentric shaft, and clamping element are provided, wherein the base is used to connect with the frame groove of the frame profile, and the hinge assembly is disposed on the base; The eccentric shaft and the clamping member are coaxially rotatably mounted 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 the first position, the long end of the clamping member is engaged with 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 end of the clamping member is located on both sides of the inner wall of the frame groove and there is a gap between the short end of the clamping member and the two 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 by The eccentric shaft includes an adjustment body, a shaped body, and a shaft body connected in sequence. The clamping member is provided with a shaped hole, and the other end of the base is provided with a shaft hole. The shaped body is disposed in the shaped hole, and the shaft body is disposed in the shaft hole.

4. The hinge fixing structure according to claim 2, characterized by Multiple sets of positioning elements are provided 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 elements.

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

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

7. The hinge fixing structure according to claim 3, characterized by The adjustment body has a knurled texture around its perimeter.

8. The hinge fixing structure according to claim 1, characterized by The angle between the clamping member and the inner wall of the frame groove is an arc-shaped angle.

9. The hinge fixing structure according to claim 1, characterized by 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 by The base is an L-shaped component, which is used to be disposed at the corner of the frame groove, and the eccentric shaft and the clamping member are disposed at one end of the L-shaped component.

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