Hydraulic hinge

Abstract

The utility model relates to a hydraulic hinge, which is used for installing doors and windows and is characterized in that a guide spiral sleeve is arranged in the middle of a shaft core and is connected with a hinge convex plate, and a pressure nut, a thrust spring, a lifting pin, a positioning ring, a piston rod, a piston damper and a shaft core guide cap are sequentially connected and arranged in the shaft core from left to right; the return spring and the oil tank sealing ring are sequentially sleeved on the piston rod, the piston speed regulating needle screw is arranged in the shaft core guide cap, and the piston speed regulating needle penetrates through the piston speed regulating needle screw and the piston damper to be inserted into the piston rod; s-shaped through holes are formed in the front face and the back face of the middle of the guide spiral sleeve, a strip-shaped through hole is formed in the middle of the shaft core, a through hole is formed in the left end of the piston rod, and a positioning pin penetrates through the through holes of the piston rod and the shaft core and two ends of the positioning pin are inserted into the S-shaped through holes of the guide spiral sleeve. The hinge has the advantages that the structure is simple, the work is stable, the hinge structure can be simplified, the automatic assembly process of the hinge is more flexible and convenient under the condition that the size of the hinge is not increased, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to a hydraulic hinge, in particular to a hydraulic hinge with different opening and closing forces, better buffering effect and more convenient assembly. Background Art

[0002] In the market, hydraulic hinges are a widely used assembly method in the installation of doors and windows. It can make the opening and closing of doors more natural and convenient. However, the hydraulic hinges on the market now use a single power spring as the driving force, and the thrust for opening and closing the door is unified, which makes the experience of opening and closing the door the same. Some hydraulic hinges have independent hydraulic buffer circuits for opening and closing doors in order to make the speed and force of opening and closing doors different. This increases costs, makes the structure more complicated, and increases the inconvenience of maintenance and service life. Summary of the invention

[0003] The purpose of the utility model is to provide a hydraulic hinge, which adopts two sections of S-shaped sliding holes opposite to each other at the front and back as hinge power linkage guides, and then adopts two sections of springs with different elastic forces as independent power for opening and closing the door, which not only solves the problem of independent speed and force for opening and closing the door, but also simplifies the structure, making it more convenient to assemble.

[0004] The technical solution of the utility model is based on hinge convex plate, hinge concave plate, shaft core fixing cap, pressure bearing, guide spiral sleeve, retaining spring, shaft core, steel ball, decorative cover, decorative cover fixing glue, pressure nut, thrust spring, top pin, return spring, positioning ring, oil tank sealing ring, positioning pin, piston rod, piston damper, piston speed regulating needle, shaft core guide cap, piston speed regulating needle screw, and is characterized in that the guide spiral sleeve is rotatably installed in the middle of the shaft core through the retaining spring and is connected to the hinge convex plate, and the pressure nut, thrust spring, top pin, positioning ring, piston rod, piston damper, shaft are sequentially connected and installed from left to right in the shaft core. Core guide cap; the return spring and the oil tank sealing ring are sequentially sleeved on the piston rod from left to right, and the piston speed regulating needle screw is installed in the shaft core guide cap; the piston speed regulating needle passes through the piston speed regulating needle screw and the middle through hole of the piston damper from right to left and is inserted into the piston rod; the front and back sides of the middle of the guide spiral sleeve are respectively provided with S-shaped through holes, a strip through hole is provided in the middle of the shaft core, and a through hole is provided at the left end of the piston rod, the positioning pin is installed through the through hole of the piston rod and the strip through hole of the shaft core, and the front and rear ends of the positioning pin are respectively inserted into the S-shaped through holes on the front and back sides of the middle of the guide spiral sleeve.

[0005] The S-shaped through hole in the middle of the guide spiral sleeve described in the utility model is arranged in a lying position at the relative positions of the front and back sides of the middle of the guide spiral sleeve when the guide spiral sleeve is in an upright state. The bending angle between the front section and the middle of the S-shaped through hole is greater than ninety degrees and less than one hundred and ten degrees. When the hinge convex plate swings ninety degrees, the positioning pin can remain stationary at the front section of the S-shaped through hole, and the bending angle between the front section and the middle of the S-shaped through hole is a smooth excessive bending. When the positioning pin is at the rear section of the S-shaped through hole, no external force acts on the hinge convex plate, and the thrust spring can force the positioning pin to slide back to the middle section of the S-shaped through hole.

[0006] The hinge convex plate of the utility model can drive the shaft core to rotate when swinging, forcing the positioning pin to slide in the S-shaped through hole of the guide spiral sleeve, so that the piston rod moves to the left end or the right end of the shaft core, and at the same time compresses or resets the compression thrust spring.

[0007] The working principle of the utility model is that when the hinge convex plate swings forward and backward, the positioning pin is forced to slide forward and backward in the S-shaped sliding hole, and at the same time, the ejector pin in the shaft core is upward or downward to compress or reset the thrust spring. Because the thrust spring and the return spring are two independent springs, the thrust spring acts on the door opening and closing, and the return spring acts on the oil tank sealing ring to receive the thrust of the oil pressure, so that the hydraulic buffer structure can be conveniently assembled with the corresponding return spring and thrust spring according to the hinge specifications during production and assembly, which simplifies the structure and makes the automatic assembly process more flexible and convenient.

[0008] The utility model has the advantages of simple structure, stable operation, ability to simplify the hinge structure and realize a more flexible and convenient hinge automatic assembly process without increasing the hinge volume, and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0010] Figure 2 It is a cross-sectional structural schematic diagram of the rotating component of the utility model;

[0011] Figure 3 It is a schematic diagram of the exploded structure of the utility model;

[0012] Figure 4 This is a schematic diagram of the three-dimensional structure of the shaft core and the guide spiral sleeve of the utility model;

[0013] Figure 5 This is a schematic diagram of the three-dimensional structure of the guide spiral sleeve of the utility model;

[0014] Figure 6 It is a schematic diagram of the three-dimensional structure of the shaft core of the utility model. DETAILED DESCRIPTION

[0015] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the left, right, up, down, front, and back directions in this embodiment are based on the Figure 4 For reference, the utility model is based on the hinge convex plate 2, the hinge concave plate 1, the shaft core fixing cap 3, the pressure bearing 4, the guide spiral sleeve 5, the retaining spring 6, the shaft core 7, the steel ball 8, the decorative cover 9, the decorative cover fixing glue 10, the pressure nut 11, the thrust spring 12, the top pin 13, the return spring 14, the positioning ring 15, the oil tank sealing ring 16, the positioning pin 17, the piston rod 18, the piston damper 19, the piston speed regulating needle 20, the shaft core guide cap 21, and the piston speed regulating needle screw 22. The characteristic is that the guide spiral sleeve 5 is rotatably installed in the middle of the shaft core 7 through the retaining spring 6 and is connected to the hinge convex plate 2, and the pressure nut 11, the thrust spring 12, the top pin 13, the positioning ring 15, the piston rod 18, the movable Plug damper 19, shaft core guide cap 21; the return spring 14 and the oil tank sealing ring 16 are sequentially sleeved on the piston rod 18 from left to right, and the piston speed regulating needle screw 22 is installed in the shaft core guide cap 21; the piston speed regulating needle 20 is sequentially inserted into the piston rod 18 through the piston speed regulating needle screw 22 and the middle through hole of the piston damper 19 from right to left; the front and back sides of the middle of the guide spiral sleeve 5 are respectively provided with S-shaped through holes, a strip through hole is provided in the middle of the shaft core 7, and a through hole is provided at the left end of the piston rod 18, the positioning pin 17 is installed through the through hole of the piston rod 18 and the strip through hole of the shaft core 7, and the front and rear ends of the positioning pin 17 are respectively inserted into the S-shaped through holes on the front and back sides of the middle of the guide spiral sleeve 5.

[0016] The S-shaped through hole in the middle of the guide spiral sleeve 5 described in the utility model is arranged in a lying position at the relative positions of the front and back sides of the guide spiral sleeve 5 when the guide spiral sleeve is in an upright state. The bending angle between the front section and the middle section of the S-shaped through hole is greater than ninety degrees and less than one hundred and ten degrees. When the hinge convex plate 2 swings ninety degrees, the positioning pin 17 can remain stationary at the front section of the S-shaped through hole, and the bending angle between the front section and the middle section of the S-shaped through hole is a smooth excessive bending. When the positioning pin 17 is at the rear section of the S-shaped through hole, no external force acts on the hinge convex plate 2, and the thrust spring 12 can force the positioning pin 17 to slide back to the middle section of the S-shaped through hole.

[0017] The elastic force of the thrust spring 12 is greater than the elastic force of the return spring 14 .

[0018] The inner diameter of the piston speed regulating needle 20 is smaller than the inner diameter, so that a step is formed in the middle of the piston speed regulating needle, and the step surface is an inclined surface.

[0019] The hinge convex plate 2 can drive the shaft core to rotate when swinging, forcing the positioning pin 17 to slide in the S-shaped through hole of the guide spiral sleeve, so that the piston rod 18 moves to the left or right end of the shaft core, and at the same time compresses or resets the compression thrust spring 12.

Claims

1. A hydraulic hinge, comprising a hinge convex plate (2), a hinge concave plate (1), a shaft core fixing cap (3), a pressure bearing (4), a guide spiral sleeve (5), a retaining ring (6), a shaft core (7), a steel ball (8), a decorative cover (9), a decorative cover fixing glue (10), a pressure nut (11), a thrust spring (12), a top pin (13), a return spring (14), a positioning ring (15), an oil tank sealing ring (16), a positioning pin (17), a piston rod (18), a piston damper (19), a piston speed regulating needle (20), a shaft core guide cap (21), and a piston speed regulating needle screw (22), characterized in that: The guide spiral sleeve (5) is rotatably mounted in the middle of the shaft core (7) through a retaining ring (6) and connected to the hinge convex plate (2). A pressure nut (11), a thrust spring (12), a push pin (13), a positioning ring (15), a piston rod (18), a piston damper (19), and a shaft core guide cap (21) are sequentially connected and installed in the shaft core (7) from left to right; the return spring (14) and the oil tank sealing ring (16) are sequentially sleeved on the piston rod (18) from left to right, and the piston speed regulating needle screw (22) is installed in the shaft core guide cap (21); the piston speed regulating needle (20) from right to left, sequentially passes through the piston speed regulating needle screw (22) and the middle through hole of the piston damper (19) and is inserted into the piston rod (18); the front and back sides of the middle of the guide spiral sleeve (5) are respectively provided with S-shaped through holes, the middle of the shaft core (7) is provided with a strip through hole, and the left end of the piston rod (18) is provided with a through hole, the positioning pin (17) passes through the through hole of the piston rod (18) and the strip through hole of the shaft core (7) for installation, and the front and rear ends of the positioning pin (17) are respectively inserted into the S-shaped through holes on the front and back sides of the middle of the guide spiral sleeve (5).

2. A hydraulic hinge according to claim 1, characterized in that: The S-shaped through hole in the middle of the guide spiral sleeve (5) is arranged in a lying position at the relative positions of the front and back sides of the middle of the guide spiral sleeve when the guide spiral sleeve (5) is in an upright state. The bending angle between the front section and the middle of the S-shaped through hole is greater than ninety degrees and less than one hundred and ten degrees. When the hinge convex plate swings ninety degrees, the positioning pin (17) can remain stationary at the front section of the S-shaped through hole, and the bending angle between the front section and the middle of the S-shaped through hole is a smooth transition bending. When the positioning pin (17) is at the rear section of the S-shaped through hole, no external force acts on the hinge convex plate (2), and the thrust spring (12) can force the positioning pin (17) to return to the middle section of the S-shaped through hole and slide.

3. A hydraulic hinge according to claim 1, characterized in that: The hinge convex plate (2) can drive the shaft core (7) to rotate when swinging, forcing the positioning pin (17) to slide in the S-shaped through hole of the guide spiral sleeve (5), thereby causing the piston rod (18) to move toward the left end or right end of the shaft core (7) and compressing or resetting the thrust spring (12) at the same time.

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