Stepless adjusting hinge

Abstract

The utility model discloses a stepless adjusting hinge which comprises a first hinge piece, a second hinge piece and two groups of inserting assemblies, a first rotating shaft is arranged on one side of the first hinge piece, two second rotating shafts are arranged on one side of the second hinge piece, rotating holes are formed in the second rotating shafts, and the two second rotating shafts are located at the two opposite ends of the first rotating shaft respectively. First limiting grooves, second limiting grooves and third limiting grooves are formed in the two opposite ends of the first rotating shaft; the plugging assembly comprises a plug pin, a spring and a pushing block, the pushing block is slidably connected to the first limiting groove, a positioning groove is formed in the end, away from the second rotating shaft, of the pushing block, the two ends of the spring are connected with the groove bottom of the positioning groove and the groove bottom of the second limiting groove respectively, a receding hole is formed in the groove bottom of the positioning groove, and the plug pin penetrates through the rotating hole, the receding hole and the third limiting groove. The diameter of the pushing block is larger than that of the rotating hole. According to the hinge, continuous opening and closing angle adjustment can be achieved, adjustment is flexible and accurate, the position of the hinge is stable after adjustment, and safety is high.

Description

Technical Field

[0001] The utility model relates to the field of hardware hinges, in particular to a stepless adjustment hinge. Background Art

[0002] A hinge, also known as a hinge leaf or a hinge, is often composed of two folds and is a component that connects two parts of an object and enables them to move. It is mostly used in scenarios such as cabinets and doors and windows. As a connecting and fixing part, the hinge plays a crucial role.

[0003] In the related art, the hinge mainly includes two leaf pieces and a shaft pin. The pin connects the two leaf pieces, and the two leaf pieces can rotate relative to each other to realize the opening and closing between two objects. The hinge in the related art is difficult to achieve continuous angle adjustment and cannot achieve stepless adjustment. Moreover, when the hinge is in the open state, it is easily affected by the external environment, resulting in unstable positions between the two leaf pieces after adjustment. For example, the position between the two leaf pieces is easily changed by the wind, and the safety performance is poor. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a stepless adjustment hinge, which can realize continuous angle adjustment, and has stable and reliable positions and good safety performance after adjustment.

[0005] A stepless adjustment hinge according to an embodiment of the utility model includes a first leaf piece, a second leaf piece and two sets of plug-in components. A first rotating shaft is provided on one side of the first leaf piece, and two second rotating shafts are provided on one side of the second leaf piece. The second rotating shaft is provided with a rotating hole. The two second rotating shafts are respectively located at opposite ends of the first rotating shaft. Opposite ends of the first rotating shaft are both provided with first limiting grooves. A second limiting groove is provided at the bottom of each first limiting groove. A third limiting groove is provided at the bottom of each second limiting groove. The diameters of the first limiting groove, the second limiting groove and the third limiting groove decrease in sequence.

[0006] The plug-in component includes a pin, a spring and a push block. The push block is slidably connected to the first limiting groove. A positioning groove is provided at one end of the push block away from the second rotating shaft. Two ends of the spring are respectively connected to the bottom of the positioning groove and the bottom of the second limiting groove, so that the push block forms a movement trend towards the second rotating shaft. A relief hole is provided at the bottom of the positioning groove. The pin passes through the rotating hole, the relief hole and the third limiting groove. The spring is sleeved outside the pin. The push block is cylindrical, and the diameter of the push block is greater than the diameter of the rotating hole. One end of the pin abuts against the bottom of the third limiting groove, and the other end of the pin is fixedly connected to the second rotating shaft.

[0007] In this embodiment, a clamping groove is provided on one side of the push block away from the pin. A clamping strip is provided on the groove wall of the first limiting groove. The clamping strip and the clamping groove are both parallel to the pin. The clamping strip is slidably connected to the clamping groove.

[0008] In this embodiment, an elastic alloy layer is provided at one end of the pressing block close to the second rotating shaft.

[0009] In this embodiment, there are two clamping grooves, which are respectively located on opposite sides of the plug pin. There are two clamping bars, and the two clamping bars are respectively slidably connected to the two clamping grooves.

[0010] In this embodiment, the plug-in component further includes a plug and a screw. The plug is located at one end of the plug pin away from the third limiting groove. There is a screw hole on one side of the plug, and a positioning hole is provided on one side of the second rotating shaft. The screw passes through the positioning hole and is threadedly connected to the screw hole.

[0011] In this embodiment, a fourth limiting groove is provided at the bottom of the third limiting groove. A limiting post is provided at one end of the plug pin close to the center of the first rotating shaft, and the limiting post is arranged in the fourth limiting groove.

[0012] In this embodiment, the first blade is provided with at least one first mounting hole, and the second blade is provided with at least one second mounting hole.

[0013] The embodiment of the present utility model has at least the following beneficial effects:

[0014] The first rotating shaft is respectively rotationally connected to the second rotating shafts at both ends through two sets of plug-in components. The structure between the hinge components is compact and reliable, which can effectively improve the stability of the opening and closing actions between the first blade and the second blade. The spring drives the pressing block to form a tendency to move close to the end of the second rotating shaft. The pressing block can squeeze the end of the second rotating shaft, thereby realizing the positioning between the first rotating shaft and the second rotating shaft. Furthermore, the relative positions of the first blade and the second blade can be positioned, and continuous opening and closing angle adjustment of the first blade and the second blade can be realized. The adjustment of the hinge is flexible and accurate, which can meet the use requirements of different scenarios. The elastic force of the spring can keep the moving structure between the first rotating shaft and the second rotating shaft in a good stress state, which can effectively reduce loosening and shaking. The adjustment action is stable, the position of the hinge after adjustment is stable, and the safety is high; in addition, a pressing block is arranged between the spring and the second rotating shaft. When the first rotating shaft and the second rotating shaft rotate relative to each other, the pressing block can significantly reduce the torsional force exerted by the second rotating shaft on the spring, effectively reduce the torsional amplitude of the spring, thereby effectively ensuring the performance of the spring and effectively extending the service life of this stepless adjustment hinge. Description of the Drawings

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0016] Figure 1 is a three-dimensional structural schematic diagram of the stepless adjustment hinge according to the embodiment of the present utility model;

[0017] Figure 2 Schematic exploded view of the stepless adjustment hinge according to an embodiment of the present invention;

[0018] Figure 3 Front view structural schematic diagram of the stepless adjustment hinge according to an embodiment of the present invention;

[0019] Figure 4 Along Figure 3 Schematic cross-sectional structure diagram taken along A - A' in

[0020] Reference numerals:

[0021] First leaf 100, first mounting hole 101, first rotating shaft 110, first limiting groove 111, second limiting groove 112, third limiting groove 113, fourth limiting groove 114, clamping strip 120;

[0022] Second leaf 200, second mounting hole 201, second rotating shaft 210, rotating hole 211, positioning hole 212;

[0023] Plug - in assembly 300, plug pin 310, limiting post 311, spring 320, push - block 330, positioning groove 331, relief hole 332, clamping groove 333, elastic alloy layer 334, plug 340, screw hole 341, screw 350. Detailed implementation manners

[0024] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0026] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0027] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "install", "connect", etc. shall be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0028] A hinge, also known as a leaf hinge, often forms a two-fold type and is a component that connects two parts of an object and enables them to move. It is mostly used in scenarios such as cabinets and doors and windows. The hinge plays a crucial role as a connecting and fixing component. In the related art, the hinge mainly includes two leaf pieces and a pivot pin. The two leaf pieces are connected by a cotter pin, and the two leaf pieces can rotate relative to each other, thereby realizing the opening and closing between two objects. The hinge in the related art is difficult to achieve continuous angle adjustment, cannot achieve stepless adjustment, and the hinge is easily affected by the external environment in the open state, resulting in unstable positions between the two leaf pieces after adjustment. For example, the position between the two leaf pieces is easily changed by the wind, and the safety is poor.

[0029] Some hinges adopt a design of fixed or limited gear adjustment and cannot achieve stepless adjustment, that is, a continuous and smooth angle adjustment function. This design limits the flexibility and adaptability of furniture in different usage scenarios, especially when fine adjustment of the opening and closing angle is required or special usage requirements need to be met, it is particularly inconvenient. In addition, traditional hinges often require complex tools and operation steps during installation and adjustment, increasing the installation difficulty and cost. Although the stepless adjustment hinges in the prior art have improved the continuity and smoothness of adjustment to a certain extent, they often have problems such as complex structure, high cost, insufficient durability, or insufficient adjustment accuracy. Especially when the hinge needs to bear a large load or is frequently opened and closed, its stability and reliability often become the focus of user attention.

[0030] The following refers to the attached Figure 1 to the attached Figure 4 , and describes the stepless adjustment hinge of the embodiment of the present utility model, which can achieve continuous angle adjustment, and the position after adjustment is stable and reliable, and the safety is good.

[0031] Refer to Figures 1 to 4, A stepless adjustment hinge according to an embodiment of the present invention includes a first leaf 100, a second leaf 200, and two sets of plug-in components 300. A first rotating shaft 110 is provided at one side edge of the first leaf 100. Two second rotating shafts 210 are provided at one side edge of the second leaf 200. The second rotating shaft 210 is provided with a circular rotating hole 211. The rotating hole 211 penetrates through the opposite ends of the second rotating shaft 210. The two second rotating shafts 210 are respectively located outside the opposite ends of the first rotating shaft 110. The axes of the two second rotating shafts 210 are collinear with the axis of the first rotating shaft 110. A circular first limiting groove 111 is provided at each of the opposite ends of the first rotating shaft 110. The diameter of the first limiting groove 111 is larger than the diameter of the rotating hole 211. The notch of the first limiting groove 111 faces the adjacent second rotating shaft 210. A circular second limiting groove 112 is provided at the bottom of each first limiting groove 111. The notch of the second limiting groove 112 is located at the bottom of the first limiting groove 111. A circular third limiting groove 113 is provided at the bottom of each second limiting groove 112. The diameters of the first limiting groove 111, the second limiting groove 112, and the third limiting groove 113 decrease in sequence. The centers of the first limiting groove 111, the second limiting groove 112, and the third limiting groove 113 are collinear. The two sets of plug-in components 300 are respectively arranged in the spaces formed between the two second rotating shafts 210 and the first rotating shaft 110. Specifically, one of the rotating holes 211 and the adjacent first limiting groove 111, second limiting groove 112, and third limiting groove 113 form a plug-in space. The two plug-in spaces are respectively used for installing the two sets of plug-in components 300;

[0032] In each plug-in component 300, the plug-in component 300 includes a pin 310, a spring 320, and a push block 330. The pin 310 is cylindrical. The push block 330 is slidably connected to the first limiting groove 111. The push block 330 can slide axially within the first limiting groove 111. At one end of the push block 330 away from the adjacent second rotating shaft 210, there is a circular positioning groove 331. The spring 320 is disposed between the positioning groove 331 and the second limiting groove 112. The opposite ends of the spring 320 respectively abut against the bottom of the positioning groove 331 and the bottom of the second limiting groove 112, so as to cause the push block 330 to form a movement trend of approaching the adjacent second rotating shaft 210, thereby enabling the push block 330 to axially press the end of the second rotating shaft 210, and being able to form a positioning effect between the first rotating shaft 110 and the second rotating shaft 210, so as to meet the use requirements of stepless adjustment. At the bottom of the positioning groove 331, there is a circular relief hole 332. The diameter of the relief hole 332 is smaller than the diameter of the positioning groove 331. The pin 310 sequentially passes through the rotation hole 211, the relief hole 332, the positioning groove 331, the first limiting groove 111, the second limiting groove 112, and the third limiting groove 113. The spring 320 is sleeved outside the pin 310. The diameters of the rotation hole 211 and the relief hole 332 are both equal to the diameter of the pin 310. The push block 330 is cylindrical, and the diameter of the push block 330 is larger than the diameter of the rotation hole 211 to ensure that the push block 330 can achieve extrusion positioning on the end of the second rotating shaft 210. One end of the pin 310 abuts against the bottom of the third limiting groove 113, and the other end of the pin 310 is fixedly connected to the second rotating shaft 210.

[0033] The first rotating shaft 110 is rotatably connected to the second rotating shafts 210 at both ends by two sets of connector assemblies 300. The structure between the hinge components is compact and reliable, which can effectively improve the stability of the opening and closing action between the first leaf 100 and the second leaf 200. The spring 320 drives the pushing block 330 to form a tendency to move close to the end of the second rotating shaft 210 along the axial direction. The pushing block 330 can squeeze the end of the second rotating shaft 210, thereby realizing the positioning between the first rotating shaft 110 and the second rotating shaft 210, and then the relative position of the first leaf 100 and the second leaf 200 can be positioned, and the first leaf 100 and the second leaf 200 can be continuously adjusted in opening and closing angles without being limited to the preset gear position. The hinge is flexible and accurate in adjustment, convenient and flexible to use, can effectively improve the user experience, can meet the use requirements of different scenarios, and has a wide range of applications. In addition, the elastic force of the spring 320 can keep the movable structure between the first rotating shaft 110 and the second rotating shaft 210 in a good stress state, which can effectively reduce looseness and shaking. The position of the hinge is stable after adjustment. The stepless adjustable hinge has strong working stability and high safety. The opening and closing structures of furniture such as doors, windows, cabinets, etc. using the stepless adjustable hinge have good windproof performance, and the switch adjustment action is stable and reliable. In addition, a pushing block 330 is arranged between the spring 320 and the second rotating shaft 210. When the first rotating shaft 110 and the second rotating shaft 210 rotate relative to each other, the pushing block 330 can significantly reduce the torsional force of the second rotating shaft 210 on the spring 320, which can effectively reduce the torsional amplitude of the spring 320, thereby effectively ensuring the performance of the spring 320, effectively extending the service life of the stepless adjustable hinge, reducing the frequency of replacement and maintenance, and effectively reducing the cost of use.

[0034] It can be understood that in each plug-in component 300, a clamping groove 333 is provided on the side of the pressing block 330 away from the plug pin 310, a clamping strip 120 is provided on the groove wall of the first limiting groove 111, both the clamping strip 120 and the clamping groove 333 are parallel to the plug pin 310, and the clamping strip 120 is slidably connected to the clamping groove 333 along the axial direction, so that the pressing block 330 can achieve stable axial movement relative to the first rotating shaft 110. Moreover, the circumferential position between the pressing block 330 and the first rotating shaft 110 can be restricted by the cooperation of the clamping strip 120 and the clamping groove 333. When the first rotating shaft 110 rotates relative to the second rotating shaft 210, the pressing block 330 synchronously follows the first rotating shaft 110 to rotate relative to the second rotating shaft 210, that is, the positioning groove 331 and the second limiting groove 112 are relatively stationary, which can effectively ensure the synchronization of the positions at both ends of the spring 320. When the first rotating shaft 110 rotates relative to the second rotating shaft 210, the torsional force transmitted from the second rotating shaft 210 to the pressing block 330 is transmitted to the first rotating shaft 110 through the clamping groove 333 and the clamping strip 120, which can effectively avoid the influence of the torsional force on the spring 320, and can prevent the spring 320 from being twisted, thereby effectively ensuring the elastic telescopic performance of the spring 320 and effectively extending the service life of this stepless adjustment hinge.

[0035] It can be understood that in each plug-in component 300, an elastic alloy layer 334 is provided at one end of the pressing block 330 close to the second rotating shaft 210. Through the elastic alloy layer 334, the positioning effect of the pressing block 330 on the second rotating shaft 210 can be effectively improved, and the stability of the position of this stepless adjustment hinge during adjustment and positioning can be further improved. In addition to having good elasticity, the elastic alloy layer 334 also has properties such as non-magnetic, high microplastic deformation resistance, high hardness, low resistivity, small elastic modulus temperature coefficient, and small internal friction. Preferably, the elastic alloy layer 334 can be tin phosphorous bronze, beryllium bronze, etc.

[0036] It can be understood that in each plug-in component 300, there are two clamping grooves 333 and they are respectively located on the opposite sides of the plug pin 310. There are two clamping strips 120, and the two clamping strips 120 are respectively located on the opposite groove walls of the clamping groove 333. The two clamping strips 120 are respectively slidably connected to the two clamping grooves 333. By providing two groups of clamping grooves 333 and clamping strips 120 and evenly distributing them around the axial direction of the plug pin 310, the stability of the axial movement of the pressing block 330 relative to the first rotating shaft 110 can be effectively improved, and the stability of the opening and closing adjustment actions of this stepless adjustment hinge can be effectively improved.

[0037] It can be understood that the plug-in component 300 further includes a cylindrical plug 340 and a screw 350. In each plug-in component 300, the plug 340 is located at one end of the plug pin 310 away from the third limiting groove 113. The plug 340 is also disposed in the rotation hole 211. A screw hole 341 is provided on one side of the plug 340, and a positioning hole 212 is provided on one side of the second rotating shaft 210. Both ends of the positioning hole 212 penetrate through the inner wall and the outer wall of the second rotating shaft 210 respectively. The screw 350 is inserted through the positioning hole 212 and is threadedly connected to the screw hole 341. By threading the screw 350 through the positioning hole 212 and threadedly connecting it to the screw hole 341, the relative positions of the plug 340 and the second rotating shaft 210 can be fixed. The plug 340 cooperates with the third limiting groove 113 to limit the axial position of the plug pin 310, which is convenient for installation.

[0038] Specifically, threads are also provided on the inner wall of the positioning hole 212 for the threaded connection of the screw 350, which can effectively improve the stability of the overall structure.

[0039] It can be understood that a circular fourth limiting groove 114 is provided at the bottom of each third limiting groove 113. The diameter of the fourth limiting groove 114 is smaller than that of the third limiting groove 113. A limiting post 311 is provided at one end of each plug pin 310 close to the center of the first rotating shaft 110. The two limiting posts 311 are respectively disposed in the fourth limiting groove 114. The end and the side of the limiting post 311 are limited by the fourth limiting groove 114. The limiting post 311 can rotate relative to the fourth limiting groove 114. By providing the stepped third limiting groove 113 and the fourth limiting groove 114, the collimation positioning effect between the plug pin 310 and the first rotating shaft 110 can be effectively improved, and the stability of the overall structure can be effectively improved.

[0040] It can be understood that the first blade 100 is provided with at least one first mounting hole 101, and the second blade 200 is provided with at least one second mounting hole 201. By passing a plurality of screws through the corresponding first mounting hole 101 and the second mounting hole 201 respectively, the first blade 100 and the second blade 200 are respectively fixedly installed on the corresponding target objects.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stepless adjustable hinge, characterized in that: The invention comprises a first leaf (100), a second leaf (200) and two groups of connector components (300), wherein a first rotating shaft (110) is provided on one side of the first leaf (100), two second rotating shafts (210) are provided on one side of the second leaf (200), the second rotating shafts (210) are provided with rotating holes (211), the two second rotating shafts (210) are respectively located at two opposite ends of the first rotating shaft (110), first limiting grooves (111) are provided at two opposite ends of the first rotating shaft (110), a second limiting groove (112) is provided at the bottom of each of the first limiting grooves (111), a third limiting groove (113) is provided at the bottom of each of the second limiting grooves (112), and the diameters of the first limiting groove (111), the second limiting groove (112) and the third limiting groove (113) are successively reduced; The connector assembly (300) comprises a latch (310), a spring (320) and a push block (330), wherein the push block (330) is slidably connected to the first limiting groove (111), and a positioning groove (331) is provided at one end of the push block (330) away from the second rotating shaft (210), and two ends of the spring (320) are respectively connected to the bottom of the positioning groove (331) and the bottom of the second limiting groove (112), so that the push block (330) forms a movement tendency to approach the second rotating shaft (210), and the positioning groove (33 1), a clearance hole (332) is provided at the bottom of the groove of the third limiting groove (113), the latch (310) is inserted into the rotating hole (211), the clearance hole (332) and the third limiting groove (113), the spring (320) is sleeved outside the latch (310), the pushing block (330) is cylindrical, the diameter of the pushing block (330) is larger than the diameter of the rotating hole (211), one end of the latch (310) is in contact with the bottom of the third limiting groove (113), and the other end of the latch (310) is fixedly connected to the second rotating shaft (210).

2. The stepless adjustable hinge according to claim 1, characterized in that: A locking groove (333) is provided on a side of the pushing block (330) away from the latch pin (310), a locking strip (120) is provided on the groove wall of the first limiting groove (111), the locking strip (120) and the locking groove (333) are both parallel to the latch pin (310), and the locking strip (120) is slidably connected to the locking groove (333).

3. The stepless adjustable hinge according to claim 2, characterized in that: An elastic alloy layer (334) is provided at one end of the pushing block (330) close to the second rotating shaft (210).

4. The stepless adjustable hinge according to claim 2, characterized in that: The two locking grooves (333) are respectively located on two opposite sides of the latch pin (310), and the two locking strips (120) are respectively slidably connected to the two locking grooves (333).

5. The stepless adjustable hinge according to claim 1, characterized in that: The connector assembly (300) further comprises a plug (340) and a screw (350), wherein the plug (340) is located at an end of the latch (310) away from the third limiting groove (113), a screw hole (341) is provided on one side of the plug (340), a positioning hole (212) is provided on one side of the second rotating shaft (210), and the screw (350) is passed through the positioning hole (212) and is threadedly connected to the screw hole (341).

6. The stepless adjustable hinge according to claim 1, characterized in that: A fourth limiting groove (114) is provided at the bottom of the third limiting groove (113), and a limiting column (311) is provided at one end of the latch pin (310) close to the center of the first rotating shaft (110), and the limiting column (311) is arranged in the fourth limiting groove (114).

7. The stepless adjustable hinge according to claim 1, characterized in that: The first sheet (100) is provided with at least one first mounting hole (101), and the second sheet (200) is provided with at least one second mounting hole (201).

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