Hinge

Abstract

The utility model relates to the technical field of daily hardware fittings, in particular to a hinge. The hinge comprises a base, a sliding block, a first auxiliary rod, a second auxiliary rod and a third auxiliary rod. The base is provided with a first sliding groove and a second sliding groove. The sliding block is arranged in the second sliding groove in a sliding mode in the length direction of the base, and a pressing structure is arranged on the sliding block. One end of the first auxiliary rod is rotationally connected with the first sliding groove through a first rotating shaft, and the first auxiliary rod is slidably arranged in the first sliding groove in the length direction of the base. One end of the second auxiliary rod is rotationally connected with the sliding block through a second rotating shaft; one end of the third auxiliary rod is rotationally connected with the sliding block through a third rotating shaft, and the other end of the third auxiliary rod is rotationally connected with the first auxiliary rod; the supporting rod is rotationally connected with the first auxiliary rod and the second auxiliary rod. The problem that in the prior art, a hinge lacks a structure capable of adjusting friction force, and consequently the hinge is poor in stability is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of daily hardware fittings, in particular to a hinge. BACKGROUND

[0002] Hinge is a device used to connect the window frame and the sash, allowing the sash to open and close in the horizontal direction. Push-pull window hinges are usually composed of two interconnected parts, one connected to the window frame and the other connected to the sash. Depending on the design and installation location, there are various types of push-pull window hinges to choose from, including side-opening hinges, top-opening hinges, and bottom-opening hinges. The main function of the push-pull window hinge is to support the opening and closing of the sash and provide a stable axis of motion. It allows the sash to be smoothly pushed and pulled along the hinge axis to achieve the opening and closing action of the window.

[0003] The unfolding of the hinge requires the cooperation of the auxiliary rods, and the auxiliary rods need to be set with a certain frictional resistance to increase the stability and damping effect of the hinge, making the rotating process more stable.

[0004] However, the setting of the frictional resistance cannot be too complex, which will affect the normal movement between the rods. This has been a major research problem for technicians in this field. SUMMARY

[0005] The technical problem to be solved by the embodiments of the utility model lies in providing a hinge to solve the problem of poor hinge stability caused by the lack of adjustable friction structure in the prior art.

[0006] The utility model discloses a hinge, hinge includes: base, sliding block, first auxiliary rod, second auxiliary rod and third auxiliary rod, be equipped with first sliding slot and second sliding slot on the base, the sliding block is along the length direction of the base and is slidably arranged in the second sliding slot, be equipped with the compression structure on the sliding block to adjust the first friction between the sliding block and the base, one end of the first auxiliary rod is connected with the first sliding slot through the first pivot, and the first auxiliary rod is slidably arranged in the first sliding slot along the length direction of the base, one end of the second auxiliary rod is connected with the sliding block through the second pivot, one end of the third auxiliary rod is connected with the sliding block through the third pivot, the other end of the third auxiliary rod is connected with the first auxiliary rod, support rod, the support rod is connected with the first auxiliary rod and the second auxiliary rod respectively.

[0007] Optionally, the compression structure includes an adjusting bolt arranged on the sliding block to adjust the first friction between the sliding block and the base.

[0008] Optionally, the hinge further comprises a limiting plate, at least one limiting column is arranged on the limiting plate, and an end of the first auxiliary rod is provided with a limiting slot corresponding to the limiting column.

[0009] Optionally, the limiting slot is a profiling slot arranged extending inward from the edge of the first auxiliary rod, and the profiling slot is arranged extending from the edge of the first auxiliary rod to the first rotating shaft.

[0010] Optionally, the sliding block comprises a first pressing block and a second pressing block, the first pressing block and the second pressing block are arranged on the upper end face and the lower end face of the second sliding groove respectively, and the first pressing block and / or the second pressing block are adjustably arranged to adjust the distance therebetween.

[0011] Optionally, the adjusting screw is connected between the first pressing block and the second pressing block to adjust the distance therebetween, the first rotating shaft is arranged on the first pressing block, and the second rotating shaft is connected between the first pressing block and the second pressing block to adjust the second friction between the sliding block and the second auxiliary rod.

[0012] Optionally, a positioning column is arranged on the base, a positioning slot corresponding to the positioning column is arranged on the limiting plate, the limiting plate is fixedly connected to the base, and a third sliding groove is arranged on the limiting plate corresponding to the first sliding groove.

[0013] Optionally, the first rotating shaft comprises a screw and a clamping piece, the screw extends outward from the first sliding groove through the third sliding groove, and the clamping piece is arranged at one end of the screw away from the first auxiliary rod.

[0014] Optionally, the first auxiliary rod comprises a first avoiding part and a second avoiding part connected to each other, the first avoiding part is arranged corresponding to the third auxiliary rod, and the second auxiliary rod comprises a third avoiding part arranged corresponding to the second avoiding part.

[0015] Optionally, one end of the supporting rod towards the second auxiliary rod is provided with a connecting seat, a second positioning column is arranged on the connecting seat, a second positioning slot corresponding to the second positioning column is arranged on the supporting rod, the second auxiliary rod and the supporting rod are connected through a fourth rotating shaft, and the fourth rotating shaft is sequentially connected to the second auxiliary rod, the connecting seat and the supporting rod.

[0016] Compared with the prior art, the hinge provided by the embodiment of the utility model has the beneficial effects that the support rod is used for installing the sliding window, two hinges are arranged at the upper and lower ends of the sliding window respectively, and are installed on the window frame through the base, so that the sliding operation of the sliding window is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] The technical scheme of the utility model will be further explained in detail below with reference to the drawings and embodiments, wherein:

[0018] Figure 1 is a schematic view of the hinge provided by the embodiment of the utility model;

[0019] Figure 2 is a schematic view of the hinge provided by the embodiment of the utility model;

[0020] Figure 3 is a schematic view of the sliding block, the second auxiliary rod and the third auxiliary rod provided by the embodiment of the utility model;

[0021] Figure 4 is a schematic view of the sliding block, the second auxiliary rod and the third auxiliary rod provided by the embodiment of the utility model;

[0022] Figure 5 is a schematic view of the base and the limiting plate provided by the embodiment of the utility model;

[0023] Figure 6 is a schematic view of the limiting plate and the first pivot provided by the embodiment of the utility model;

[0024] Figure 7 is a schematic view of the second auxiliary rod, the connecting seat and the support rod provided by the embodiment of the utility model;

[0025] Figure 8This is a schematic diagram of the hinge in the closed state provided in an embodiment of the present invention;

[0026] Figure 9 This is the third schematic diagram of the hinge provided in this embodiment of the utility model.

[0027] The labels for the attached figures are as follows:

[0028] 1000, Hinge; 100, Base; 101, First Slide Groove; 102, Second Slide Groove; 103, Limiting Plate; 1031, Limiting Post; 1032, First Positioning Groove; 1033, Third Slide Groove; 104, First Positioning Post; 200, Slider; 201, First Clamping Block; 202, Second Clamping Block; 300, First Auxiliary Rod; 301, First Rotating Shaft; 3011, Bolt; 3012, Clip Holder; 302, limiting groove; 303, first clearance part; 304, second clearance part; 400, second auxiliary rod; 401, second rotating shaft; 402, third clearance part; 500, third auxiliary rod; 501, third rotating shaft; 600, support rod; 601, connecting seat; 601, second positioning post; 602, second positioning groove; 603, fourth rotating shaft; 700, clamping structure; 701, adjusting bolt. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] This utility model embodiment provides a hinge 1000, such as Figures 1-2 As shown, the hinge 1000 includes: a base 100, a slider 200, a first auxiliary rod 300, a second auxiliary rod 400, and a third auxiliary rod 500. The base 100 is provided with a first sliding groove 101 and a second sliding groove 102. The slider 200 is slidably disposed in the second sliding groove 102 along the length direction of the base 100, and the slider 200 is provided with a pressing structure. One end of the first auxiliary rod 300 is rotatably connected to the first sliding groove 101 through a first rotating shaft 301, and the first auxiliary rod 300 is slidably disposed in the first sliding groove 101 along the length direction of the base 100. One end of the second auxiliary rod 400 is rotatably connected to the slider 200 through a second rotating shaft 401. One end of the third auxiliary rod 500 is rotatably connected to the slider 200 through a third rotating shaft 501, and the other end of the third auxiliary rod 500 is rotatably connected to the first auxiliary rod 300. A support rod 600 is rotatably connected to the first auxiliary rod 300 and the second auxiliary rod 400, respectively.

[0031] Specifically, the support rod 600 is used to install the sliding window, two hinges 1000 are respectively arranged at the upper and lower ends of the sliding window, and are installed on the window frame through the base 100, so that the sliding operation of the sliding window is realized. Further, the hinge 1000 includes a folding state and an unfolding state. The folding state is that the support rod 600 is folded on the base 100, and is arranged in parallel or close to parallel. The first auxiliary rod 300, the second auxiliary rod 400 and the third auxiliary rod 500 assist the rotation of the support rod 600. The unfolding state is that the support rod 600 is unfolded relative to the base 100, and is even unfolded to a perpendicular or close to perpendicular direction.

[0032] In actual use, when the sliding window needs to be opened, the window is pushed, the support rod 600 moves and drives the first auxiliary rod 300 to rotate, so that the first support rod 600 is unfolded from the parallel state with the base 100. At this time, the first auxiliary rod 300 slides in the first sliding groove 101 through the first rotating shaft 301, so as to adjust the relative position of the first auxiliary rod 300 and the base 100, so that the support rod 600 can be unfolded to the required position. Similarly, the support rod 600 drives the second auxiliary rod 400 and the third auxiliary rod 500 to unfold from the parallel state with the base 100. At this time, the second auxiliary rod 400 and the third auxiliary rod 500 drive the sliding block 200 to displace in the length direction of the base 100 in the second sliding groove 102, so as to change the position of the third auxiliary rod 500 and the second auxiliary rod 400 on the sliding block 200 relative to the base 100, so that the support rod 600 can be unfolded to the required position, and finally the sliding window can be opened to the required angle and range.

[0033] Specifically, the pressing structure is arranged on the sliding block 200, and can adjust the first friction force between the sliding block 200 and the second sliding groove 102. The sliding of the sliding block 200 relative to the second sliding groove 102 can change the friction force as required. For example, when the position of the sliding window relative to the window frame needs to be adjusted, the first friction force between the sliding block 200 and the base 100 needs to be reduced by adjusting the pressing structure, so that the relative position of the second auxiliary rod 400 and the third auxiliary rod 500 relative to the base 100 can be easily changed, so that the sliding window can be conveniently and smoothly moved to the required position. For another example, when the sliding window needs to be kept relatively stationary relative to the window frame, the first friction force between the sliding block 200 and the base 100 needs to be increased by adjusting the pressing structure, so that the relative position of the second auxiliary rod 400 and the third auxiliary rod 500 relative to the base 100 is more difficult to change, so that the sliding window can be kept stationary relative to the window frame, and the position of the sliding window can be prevented from being changed due to the influence of external environment such as strong wind, impact and the like, so that the stability of the sliding window in the required position is higher.

[0034] Specifically, the support rod 600 is connected to the first auxiliary rod 300 and the second auxiliary rod 400, serving to provide support and stability. The first auxiliary rod 300, the second auxiliary rod 400, and the third auxiliary rod 500 can help bear and distribute the force on the support rod 600, increasing the stability and load-bearing capacity of the hinge 1000.

[0035] refer to Figure 3 and Figure 4 The clamping structure includes an adjusting bolt 701 disposed on the slider 200 to adjust the first frictional force between the slider 200 and the base 100.

[0036] By adjusting the adjusting bolt 701, the magnitude of the initial frictional force between the slider 200 and the base 100 can be changed. This allows the user of the hinge 1000 to adjust the movement resistance of the hinge 1000 according to actual needs. For example, if a larger frictional force is needed to provide more stable support or damping effect, the frictional force can be increased; if a smaller frictional force is needed to move the hinge 1000 more easily, the frictional force can be decreased.

[0037] Specifically, by adjusting bolt 701, a tight contact between slider 200 and base 100 can be ensured, thus providing a more stable connection. Adjusting bolt 701 maintains an appropriate tightness between slider 200 and base 100, preventing instability of hinge 1000 due to looseness or excessive tightness. On the other hand, different applications may require different initial friction forces. By adjusting bolt 701, the adaptability of hinge 1000 can be customized according to specific needs. This allows hinge 1000 to adapt to various different usage environments and requirements.

[0038] refer to Figure 5 and Figure 6 The hinge 1000 also includes a limiting plate 103, which is disposed on the base 100. The limiting plate 103 is provided with at least one limiting post 1031, and the end of the first auxiliary rod 300 facing the first rotating shaft 301 is provided with a limiting groove 302 corresponding to the limiting post 1031.

[0039] By setting the limiting plate 103 and the limiting post 1031, the range of motion of the hinge 1000 can be limited to prevent damage or accidents caused by exceeding the design range during movement. The presence of the limiting plate 103 ensures that the hinge 1000 moves within the set range, so that the first auxiliary rod 300 is limited at some special angles, thereby enhancing the stability of the sliding window relative to the window frame at these special angles and providing reliable limiting protection, which can further improve the safety of the sliding window.

[0040] On the other hand, the limiting groove 302 corresponds to the limiting post 1031, which can achieve precise positioning. When the first auxiliary rod 300 rotates around the first rotating shaft 301, the limiting groove 302 and the limiting post 1031 interact to limit the range of movement of the first auxiliary rod 300 and ensure that it stops at the desired position.

[0041] Specifically, by adjusting the position and number of the limiting post 1031 and the limiting groove 302, the movement range and limiting method of the hinge 1000 can be designed according to specific needs. This design flexibility allows the hinge 1000 to adapt to different application scenarios and requirements. In this embodiment, the limiting plate 103 has multiple possible configurations for the limiting post 1031. For example, the limiting plate 103 may have one limiting post 1031 (see reference). Figure 1 Correspondingly, a limiting groove 302 is provided on the first auxiliary rod 300. Alternatively, multiple limiting posts 1031 may be provided on the limiting plate 103 (see reference). Figure 9 For example, limiting posts 1031 can be set at special angles such as 30°, 45°, 60°, 75° and 90°. Correspondingly, the first auxiliary rod 300 is provided with multiple limiting grooves 302. The specific choice of the matching form between a single limiting post 1031 and the limiting groove 302, or the choice of the matching form between multiple limiting posts 1031 and the limiting groove 302, depends on the specific situation.

[0042] refer to Figure 1 The limiting groove 302 is a contour groove extending inward from the edge of the first auxiliary rod 300; and the contour groove extends from the edge of the first auxiliary rod 300 toward the first rotating shaft 301.

[0043] By incorporating a contour groove, more precise limit control can be achieved. When the first auxiliary rod 300 moves, the contour groove interacts with the limit post 1031, limiting the range of motion of the first auxiliary rod 300 and ensuring that it stops at the desired position. Since the contour groove extends inward from the edge of the first auxiliary rod 300, it provides more accurate positioning, making the movement of the hinge 1000 more precise and controllable.

[0044] Specifically, the contoured groove is similar to the outer contour of the limiting post 1031, and the presence of the contoured groove can increase the structural stability of the hinge 1000. It provides additional support and rigidity, which helps to prevent unnecessary vibration or displacement of the hinge 1000 during movement, thereby improving the stability and reliability of the hinge 1000.

[0045] refer to Figure 3 and Figure 4The slider 200 includes a first pressing block 201 and a second pressing block 202. The first pressing block 201 and the second pressing block 202 are respectively disposed on the upper end surface and the lower end surface of the second slide groove 102. The first pressing block 201 or / and the second pressing block 202 are adjustable to adjust the distance between them.

[0046] The distance between the first pressing block 201 and the second pressing block 202 can be adjusted using the adjustable first pressing block 201 and / or the second pressing block 202. This adjustability allows the position and range of motion of the slider 200 to be adjusted according to specific needs to adapt to different application scenarios and requirements. For example, when a larger frictional force is required to keep the sliding window stationary relative to the window frame, it is necessary to reduce the distance between the first pressing block 201 and the second pressing block 202 by adjusting the distance of the slider 200 to increase the first frictional force of the first pressing block 201 and the second pressing block 202 against the base 100. Conversely, when a smaller frictional force is required to move the sliding window relative to the window frame, it is necessary to increase the distance between the first pressing block 201 and the second pressing block 202 to reduce the first frictional force of the first pressing block 201 and the second pressing block 202 against the base 100. This allows for control and adjustment of the movement of the hinge 1000, providing greater flexibility and adaptability.

[0047] Specifically, the friction between the slider 200 and the base 100 can be adjusted by adjusting the distance between the first clamping block 201 and / or the second clamping block 202. This adjustment provides more stable motion control, preventing unnecessary loosening or insufficient friction of the slider 200 during movement. Stable slider 200 movement helps improve the stability and reliability of the hinge 1000.

[0048] refer to Figure 3 and Figure 4 The adjusting bolt 701 passes through the first clamping block 201 and connects to the second clamping block 202 to adjust the distance between them; the first rotating shaft 301 is provided on the first clamping block 201, and the second rotating shaft 401 passes through the first clamping block 201 and connects to the second clamping block 202 to adjust the first frictional force between the slider 200 and the base 100 or the second frictional force between the slider 200 and the second auxiliary rod 400.

[0049] The position of the slider 200 can be adjusted by adjusting the distance between the first clamping block 201 and the second clamping block 202 connected by the adjusting bolt 701. This adjustability allows the distance between the slider 200 and the base 100 to be adjusted according to specific needs, thereby controlling the range of motion and friction of the slider 200. By adjusting the position of the bolt 701, precise control and adjustment of the movement of the hinge 1000 can be achieved.

[0050] Specifically, by setting up the first rotating shaft 301 and the second rotating shaft 401, the first frictional force between the slider 200 and the base 100, or the second frictional force between the slider 200 and the second auxiliary rod 400, can be adjusted. This adjustment can provide the desired level of the first or second frictional force to achieve smooth movement and stability of the slider 200. By adjusting the frictional force, the motion damping and sliding performance of the hinge 1000 can be controlled to meet the requirements of specific applications.

[0051] refer to Figure 5 and Figure 6 The base 100 is provided with a positioning post, and the limiting plate 103 is provided with a positioning groove corresponding to the positioning post, so that the limiting plate 103 is fixedly connected to the base 100. The limiting plate 103 is provided with a third sliding groove 1033 corresponding to the first sliding groove 101.

[0052] The positioning pins on the base 100 are correspondingly set with the positioning grooves on the limiting plate 103 to fix the limiting plate 103 on the base 100. That is, the limiting plate 103 will not move with the sliding of the first auxiliary rod 300 in the first slide groove 101, but the first auxiliary rod 300 will also slide relative to the limiting plate 103. Therefore, a third slide groove 1033 corresponding to the first slide groove 101 is provided on the limiting plate 103 to facilitate the first rotating shaft 301 to pass through the third slide groove 1033 and extend into the first slide groove 101.

[0053] Specifically, the structural stability of the hinge 1000 is enhanced by the fixed connection between the limiting plate 103 and the base 100. This fixed connection can reduce loosening and swaying between components, and improve the rigidity and stability of the entire hinge 1000 system.

[0054] refer to Figure 6 The first rotating shaft 301 includes a bolt 3011 and a retainer 3012. The bolt 3011 passes through the third sliding groove 1033 and extends outward from the first sliding groove 101. The retainer 3012 is located at the end of the bolt 3011 that is away from the first auxiliary rod 300.

[0055] The first rotating shaft 301 consists of a bolt 3011 and a retaining member 3012. The bolt 3011 passes through the third sliding groove 1033 and extends outward. The retaining member 3012 is located at one end of the bolt 3011 and is used to fix the connection between the rotating shaft and the first auxiliary rod 300, fixing the bolt 3011 on the first sliding groove 101. The friction between the first rotating shaft 301 and the first sliding groove 101 can be adjusted by adjusting the position of the retaining member 3012, thereby controlling the movement of the first rotating shaft 301 within the first sliding groove 101.

[0056] Specifically, the design of the retaining member 3012 enhances the connection stability between the rotating shaft and the first auxiliary rod 300. The retaining member 3012 is fixed to the bolt 3011, ensuring a tight connection between the first rotating shaft 301 and the first auxiliary rod 300.

[0057] refer to Figure 8 The first auxiliary rod 300 includes a first clearance part 303 and a second clearance part 304 connected to each other, and the first clearance part 303 is correspondingly arranged with the third auxiliary rod 500; the second auxiliary rod 400 includes a third clearance part 402, and the third clearance part 402 is correspondingly arranged with the second clearance part 304.

[0058] The first clearance part 303 on the first auxiliary rod 300 is used to avoid the third auxiliary rod 500. When the sliding window is closed, the first auxiliary rod 300 and the third auxiliary rod 500 are set parallel to each other. At this time, the first auxiliary rod 300 needs a certain space to avoid the third auxiliary rod 500 to avoid squeezing and causing damage to each other. Similarly, the second clearance part 304 and the third clearance part 402 are in an overlapping state when the first auxiliary rod 300 and the second auxiliary rod 400 are set parallel to each other. Therefore, the second clearance part 304 and the third clearance part 402 need to be set separately to protect the first auxiliary rod 300 and the second auxiliary rod 400. This can ensure that the hinge 1000 will not collide with other parts when it moves, thereby protecting the integrity of the hinge 1000 and related equipment.

[0059] refer to Figure 7 The support rod 600 has a connecting seat 601 at one end facing the second auxiliary rod 400. The connecting seat 601 has a second positioning post. The support rod 600 has a second positioning groove corresponding to the second positioning post. The second auxiliary rod 400 and the support rod 600 are connected by a fourth rotating shaft. The fourth rotating shaft passes through the second auxiliary rod 400 and the connecting seat 601 in sequence and is connected to the support rod 600.

[0060] The connecting seat 601 can raise the support rod 600 to a certain height, so that it is set in layers with the second auxiliary rod 400, in order to avoid collision and compression between the support rod 600 and the first auxiliary rod 300 or the second auxiliary rod 400 during the movement of the hinge 1000, which would cause damage.

[0061] Specifically, the hinge 1000 system can achieve precise positioning through the second positioning post on the connecting seat 601 and the second positioning groove on the support rod 600. The cooperation of the second positioning post and the second positioning groove ensures that the connecting seat 601 is accurately fixed on the support rod 600.

[0062] Specifically, the design of the connecting seat 601 and the fourth pivot provides a stable connection and support. The fourth pivot passes sequentially through the second auxiliary rod 400, the connecting seat 601, and the support rod 600, tightly connecting them together. This structural stability ensures that the hinge 1000 system remains stable during movement, reducing vibration and swaying, thereby improving the system's reliability and accuracy.

[0063] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A hinge, characterized in that, include The base is provided with a first sliding groove and a second sliding groove; A slider is slidably disposed in the second groove along the length direction of the base, and the slider is provided with a pressing structure to adjust the first frictional force between the slider and the base; A first auxiliary rod, one end of which is rotatably connected to the first slide groove via a first rotating shaft, and the first auxiliary rod is slidably disposed within the first slide groove along the length direction of the base; The second auxiliary rod, one end of which is rotatably connected to the slider via a second pivot; The third auxiliary rod has one end rotatably connected to the slider via a third rotating shaft, and the other end rotatably connected to the first auxiliary rod. A support rod, which is rotatably connected to the first auxiliary rod and the second auxiliary rod respectively.

2. The hinge according to claim 1, characterized in that, The clamping structure includes an adjusting bolt disposed on the slider to adjust the first frictional force between the slider and the base.

3. The hinge according to claim 1, characterized in that, The hinge also includes a limiting plate, which is mounted on the base. The limiting plate is provided with at least one limiting post, and the end of the first auxiliary rod facing the first rotating shaft is provided with a limiting groove corresponding to the limiting post.

4. The hinge according to claim 3, characterized in that, The limiting groove is a contour groove extending inward from the edge of the first auxiliary rod; and the contour groove extends from the edge of the first auxiliary rod toward the first rotating shaft.

5. The hinge according to claim 2, characterized in that, The slider includes a first pressing block and a second pressing block, which are respectively disposed on the upper end face and the lower end face of the second slide groove. The first pressing block and / or the second pressing block are adjustable to adjust the distance between them.

6. The hinge according to claim 5, characterized in that, The adjusting bolt passes through the first clamping block and connects to the second clamping block to adjust the distance between them; the first rotating shaft is disposed on the first clamping block, and the second rotating shaft passes through the first clamping block and connects to the second clamping block to adjust the second frictional force between the slider and the second auxiliary rod.

7. The hinge according to claim 3, characterized in that, The base is provided with a first positioning post, and the limiting plate is provided with a first positioning groove corresponding to the first positioning post, so that the limiting plate is fixedly connected to the base. The limiting plate is provided with a third sliding groove corresponding to the first sliding groove.

8. The hinge according to claim 7, characterized in that, The first rotating shaft includes a bolt and a retaining member. The bolt passes through the third sliding groove and extends out of the first sliding groove. The retaining member is located at the end of the bolt away from the first auxiliary rod.

9. The hinge according to any one of claims 1-8, characterized in that, The first auxiliary rod includes a first clearance portion and a second clearance portion connected to each other, and the first clearance portion is correspondingly disposed with the third auxiliary rod; the second auxiliary rod includes a third clearance portion, and the third clearance portion is correspondingly disposed with the second clearance portion.

10. The hinge according to any one of claims 1-8, characterized in that, The support rod has a connecting seat at one end facing the second auxiliary rod, and a second positioning post is provided on the connecting seat. The support rod has a second positioning groove corresponding to the second positioning post. The second auxiliary rod and the support rod are connected by a fourth rotating shaft, which passes through the second auxiliary rod and the connecting seat in sequence and is connected to the support rod.

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