Hydro-damped hinge

Abstract

The utility model discloses a hydraulic damping hinge, including rotary leaf, fixed leaf and rotating shaft, the rotating shaft outer wall both ends middle is equipped with the limit sliding slot of spiral shape, and the rotating shaft inner wall is located the limit sliding slot department and is installed the reinforcing rib for bearing, the rotating shaft inner wall top is installed the inner axle core for reducing reset speed, and the inner axle core bottom end is installed bottom bar, and the inner axle core inner wall is equipped with the oil storage cavity for oil storage, and the oil storage cavity both sides inner wall is equipped with the piston wall for keeping the internal and external air pressure balance of oil storage cavity, and the bottom bar outer wall bottom inserts and has transmission insertion rod. Through setting up the oil storage cavity, transmission insertion rod and reset component, can through the rotation of reset component and transmission insertion rod to the automatic closing of door board, and through the throttling resistance that oil liquid enters the oil storage cavity place reduces the door closing speed, prevents the door board and closes too fast and clamps the hand of user.

Description

Technical Field

[0001] This utility model relates to a hinge, specifically a hydraulically damped hinge. Background Technology

[0002] Hinges, also known as hinges, are widely used in aerospace, transportation, building decoration, furniture, packaging, mobile communication equipment, consumer electronics and many other fields. Currently, the materials used in hinge design are mainly metal materials, including iron, stainless steel, copper, aluminum and their alloys.

[0003] However, while commonly used spring hinges can achieve automatic door closing through built-in springs, their structures generally lack a buffer design. When the door panel rotates close to the closed position, it will accelerate the closing due to inertia. If the user does not remove their hand in time, it can easily lead to injury. This phenomenon stems from the lack of an integrated deceleration mechanism in the hinge, which cannot effectively counteract the impact force of the final movement of the door panel. Therefore, this utility model provides a hydraulically damped hinge to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulically damped hinge to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hydraulically damped hinge includes a rotating blade, a fixed blade, and a rotating shaft. A first rotating shaft sleeve and a second rotating shaft sleeve, respectively, are installed on adjacent sides of the rotating and fixed blades to connect with the rotating shaft. The first rotating shaft sleeve is installed in the middle of the side wall of the rotating blade, and the second rotating shaft sleeve is installed at both ends of the side wall of the fixed blade. A spiral-shaped limiting groove is formed in the middle of both ends of the outer wall of the rotating shaft. A reinforcing rib for load-bearing is installed on the inner wall of the rotating shaft at the limiting groove. An inner shaft core for reducing the reset speed is installed at the top of the inner wall of the rotating shaft, and a bottom plate is installed at the bottom of the inner shaft core. The rod has an oil storage chamber on the inner wall of the inner shaft core for storing oil. Piston walls are formed on both sides of the inner wall of the oil storage chamber to maintain the pressure balance inside and outside the oil storage chamber. A transmission rod is inserted into the bottom of the outer wall of the bottom rod. The transmission rod is slidably connected to the inner wall of the limiting groove and installed on the inner wall of the first rotating shaft sleeve. Upper and lower sealing blocks are installed at both ends of the rotating shaft for sealing. The upper and lower sealing blocks are inserted into both ends of the rotating shaft. An oil needle is installed at the bottom of the upper sealing block and is inserted into the inner wall of the oil storage chamber. Reset components for resetting the rotating blade are provided at both ends of the transmission rod.

[0007] As a further embodiment of this utility model, the reset assembly includes a first reset spring and a second reset spring. The first reset spring is installed between the inner shaft core and the reinforcing rib, and the second reset spring is installed between the lower sealing block and the transmission rod. The first reset assembly and the second reset assembly are respectively equipped with a first mating structure and a second mating structure for mating installation.

[0008] As a further embodiment of this utility model, the first mating structure includes a first spring sleeve, which is inserted and installed on the outer wall of the base rod, and the top of the first reset spring is nested in the bottom outer wall of the first spring sleeve.

[0009] As a further embodiment of this utility model, the second mating structure includes a transmission rod and a second spring sleeve, with the top of the second return spring nested in the bottom outer wall of the second spring sleeve, and both ends of the transmission rod abutting against the bottom positions of the transmission insert and the second spring sleeve, respectively.

[0010] As a further improvement of this invention, the inner diameter of the piston wall is in micrometers.

[0011] As a further embodiment of this utility model, both ends of the rotating shaft are fitted with gaskets, which are installed at the connection between the first rotating shaft sleeve and the second rotating shaft sleeve. The inner wall of the gasket at the top is provided with a second limiting groove that matches the first limiting groove on the first rotating shaft sleeve and the second rotating shaft sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When this utility model is in use, the door panel can be automatically closed by rotating the reset component and the transmission rod through the oil storage chamber, transmission rod and reset component. The closing speed is reduced by the throttling resistance generated at the oil storage chamber, which prevents the door panel from closing too quickly and trapping the user's hand.

[0014] 2. When this utility model is in use, the door panel can be automatically closed by rotating the reset component and the transmission rod through the oil storage chamber, transmission rod and reset component, without the need for door catch, which simplifies the overall structure and reduces maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a hydraulically damped hinge.

[0016] Figure 2 This is an exploded view of a hydraulically damped hinge.

[0017] Figure 3 This is a partial view of the rotating shaft in a hydraulically damped hinge.

[0018] Figure 4This is a schematic diagram of the structure inside the rotating shaft of a hydraulic damping hinge.

[0019] Figure 5 This is a cross-sectional view of the inner shaft core of a hydraulically damped hinge.

[0020] Figure 6 This is an exploded view of the rotating shaft inside a hydraulically damped hinge.

[0021] In the diagram: 10. Rotating blade; 11. First rotating shaft sleeve; 20. Fixed blade; 21. Second rotating shaft sleeve; 30. Rotating shaft; 31. Limiting groove; 32. Shim; 33. Reinforcing rib;

[0022] 40. Upper sealing block; 41. Lower sealing block; 42. Oil needle; 50. Inner shaft core; 51. Bottom rod; 52. Oil reservoir; 53. Piston wall; 54. Slot; 60. First spring sleeve; 61. First return spring; 70. Transmission rod; 80. Transmission rod; 81. Second spring sleeve; 82. Second return spring. Detailed Implementation

[0023] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 In this embodiment of the utility model, the hydraulic damping hinge includes a rotating blade 10, a fixed blade 20, and a rotating shaft 30. A first rotating shaft sleeve 11 and a second rotating shaft sleeve 21 that are connected to the rotating shaft 30 are respectively installed on the adjacent sides of the rotating blade 10 and the fixed blade 20. The first rotating shaft sleeve 11 is installed at the middle position of the side wall of the rotating blade 10, and the second rotating shaft sleeve 21 is installed at both ends of the side wall of the fixed blade 20. The outer walls of the rotating blade 10 and the fixed blade 20 are provided with a plurality of reserved holes for bolt installation.

[0025] See Figure 2-5The outer wall of the rotating shaft 30 has spiral-shaped limiting grooves 31 at both ends. Reinforcing ribs 33 for bearing are installed on the inner wall of the rotating shaft 30 at the limiting grooves 31. An inner shaft core 50 for reducing the reset speed is installed at the top of the inner wall of the rotating shaft 30. A bottom rod 51 is installed at the bottom of the inner shaft core 50. An oil storage chamber 52 for storing oil is opened on the inner wall of the inner shaft core 50. Piston walls 53 for maintaining the air pressure balance inside and outside the oil storage chamber 52 are opened on both sides of the inner wall of the oil storage chamber 52. The piston walls 53 penetrate the side walls of the inner shaft core 50. A through slot 54 is opened at the bottom of the outer wall of the bottom rod 51, into which a [missing information - likely a device or component] is inserted. The transmission rod 70 is slidably connected to the inner wall of the limiting groove 31. The first rotating shaft sleeve 11 and the second rotating shaft sleeve 21 located at the top are provided with a first limiting groove that matches the transmission rod 70. When installing, the rotating shaft 30 is inserted and fixed into the inner wall of the first rotating shaft sleeve 11 and the second rotating shaft sleeve 21. At this time, the transmission rod 70 can pass through the first limiting groove on the second rotating shaft sleeve 21 and be engaged in the first limiting groove in the first rotating shaft sleeve 11. By rotating the blade 10 to drive the rotation of the first rotating shaft sleeve 11, the transmission rod 70 can be driven to rotate at the limiting groove 31.

[0026] The rotating shaft 30 is equipped with an upper sealing block 40 and a lower sealing block 41 for sealing at both ends. The upper sealing block 40 and the lower sealing block 41 are inserted into the two ends of the rotating shaft 30. An oil needle 42 is installed at the bottom of the upper sealing block 40. The oil needle 42 is inserted into the inner wall of the oil storage chamber 52. The piston wall 53 is designed to cover the outer wall of the oil needle 42 with oil to form an oil film when the oil needle 42 moves in the oil storage chamber 52, thereby reducing the friction between the oil needle 42 and the oil storage chamber 52 and preventing jamming. Furthermore, when the oil needle 42 approaches the end of its stroke, the piston wall 53 can limit the oil flow rate, forcing the oil to generate throttling resistance through the piston wall 53, achieving flexible buffering and preventing the door from closing too quickly and pinching the hand.

[0027] The transmission rod 70 is equipped with reset components at both ends for resetting the rotating blade 10.

[0028] See Figure 4 and Figure 6 The reset assembly includes a first reset spring 61 and a second reset spring 82. The first reset spring 61 is installed between the inner shaft core 50 and the reinforcing rib 33, and the second reset spring 82 is installed between the lower sealing block 41 and the transmission rod 70. The first reset assembly and the second reset assembly are respectively equipped with a first mating structure and a second mating structure for mating installation.

[0029] The first mating structure includes a first spring sleeve 60, which has a through hole. The first spring sleeve 60 is inserted into the outer wall of the base rod 51 through the through hole. The top of the first return spring 61 is nested in the bottom outer wall of the first spring sleeve 60. When the transmission rod 70 moves down, the pressure can be transmitted to the first return spring 61 through the base rod 51 and the first spring sleeve 60. The first return spring 61 can be compressed and retracted. At this time, the inner shaft core 50, the base rod 51 and the first spring sleeve 60 move down. After the door is opened, the user's hand leaves the door panel. Under the elastic force of the first return spring 61, the inner shaft core 50 and the base rod 51 can be reset.

[0030] The second mating structure includes a transmission rod 80 and a second spring sleeve 81. The top of the second return spring 82 is nested in the bottom outer wall of the second spring sleeve 81. The two ends of the transmission rod 80 abut against the bottom of the transmission insert rod 70 and the second spring sleeve 81, respectively. When the transmission insert rod 70 moves down, the pressure can be transmitted to the second return spring 82 through the transmission rod 80 and the second spring sleeve 81. When the second return spring 82 is compressed and contracts, it can drive the transmission rod 80 and the second spring sleeve 81 to move down synchronously. After the door is opened, the user's hand leaves the door panel. At this time, under the elastic force of the second return spring 82, the transmission rod 80, the second spring sleeve 81 and the transmission insert rod 70 can be reset.

[0031] See Figure 5 The piston wall 53 has an inner diameter of 10 micrometers. This size reduces the risk of oil leakage in the oil storage chamber 52 and reduces the speed at which oil flows back from the piston wall 53 to the oil storage chamber 52, thereby reducing the speed at which the door panel resets and preventing the door from closing too quickly and pinching the hand.

[0032] See Figure 2 Both ends of the rotating shaft 30 are fitted with shims 32. The shims 32 are installed at the connection between the first rotating shaft sleeve 11 and the second rotating shaft sleeve 21. The inner wall of the top shim 32 is provided with a second limiting groove that matches the first limiting groove on the first rotating shaft sleeve 11 and the second rotating shaft sleeve 21. The shims 32 are used to adjust the distance between the first rotating shaft sleeve 11 and the second rotating shaft sleeve 21, maintain the stability of the distance between them, avoid friction between them to generate noise, and prevent the first rotating shaft sleeve 11 and the second rotating shaft sleeve 21 from misaligning under multiple rotations, which would affect the stability of the hinge. In addition, it can increase the resistance between them, and prevent the rotating blade 10 from resetting too quickly, which would cause the door panel to close too quickly and pinch the hand.

[0033] The working principle of this utility model is as follows: When installation is required, the first return spring 61 is nested in the first spring sleeve 60, and the first spring sleeve 60 is inserted and installed on the outer wall of the base rod 51. The whole assembly is then inserted and installed at the top position of the rotating shaft 30. At this time, the first return spring 61 can abut against the washer 32. The inner shaft core 50 is pressed with a tool, and the transmission rod 70 is passed through the limiting slide groove 31 and inserted into the slot 54 on the base rod 51 for fixation. Then, the second return spring 82 is nested in the second spring sleeve 81, and the transmission rod 80, the second spring sleeve 81, and the second return spring 82 are inserted into the rotating shaft 30 from top to bottom. On the inner wall, the transmission rod 80 and the transmission insertion rod 70 abut against each other. Then, the oil needle 42 at the bottom of the upper sealing block 40 is inserted into the oil storage cavity 52 and fixed to the top of the rotating shaft 30. The lower sealing block 41 is fixed to the bottom of the rotating shaft 30 to seal both ends of the rotating shaft 30. The first rotating shaft sleeve 11 is placed between the two second rotating shaft sleeves 21, keeping them on the same axis. Then, the rotating shaft 30 is sequentially inserted into the inner wall of the second rotating shaft sleeve 21 at the top, the first rotating shaft sleeve 11, and the second rotating shaft sleeve 21 at the bottom for fixation. Finally, the rotating blade 10 and the fixed blade 20 are installed on the door panel and the door frame respectively with bolts to complete the installation.

[0034] When the user opens the door, the door panel drives the transmission rod 70 to slide along the spiral limiting groove 31 by rotating the leaf plate 10 and the first rotating shaft sleeve 11. When the transmission rod 70 slides, the vertical displacement component can compress and contract the second return spring 82 through the transmission rod 80 and the second spring sleeve 81, and drive the inner shaft core 50 to move down through the bottom rod 51 to compress and contract the first return spring 61. When the inner shaft core 50 moves, the oil needle 42 can slide in the oil storage cavity 52. ​​After the door is opened, the user leaves the door panel and no longer applies pulling force to the door panel. Under the elastic force of the second return spring 82 and the first return spring 61, the transmission rod 70 can be driven to reset, and the first rotating shaft sleeve 11 can be driven to rotate and reset. Then, the door panel is driven to reset and close by rotating the leaf plate 10.

[0035] When in use, this utility model, through the oil storage chamber 52, the transmission rod 70 and the reset component, can automatically close the door panel by rotating the reset component and the transmission rod 70. The throttling resistance generated by the oil entering the oil storage chamber 52 reduces the closing speed and prevents the door panel from closing too quickly and trapping the user's hand. No door catcher is required, which simplifies the overall structure and reduces maintenance costs.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Hydraulic dampened hinge comprising a rotating leaf (10), a fixed leaf (20) and a rotating shaft (30), characterized in that, The rotating blade (10) and the fixed blade (20) are respectively equipped with a first rotating shaft sleeve (11) and a second rotating shaft sleeve (21) that are connected to the rotating shaft (30) on their adjacent sides. The first rotating shaft sleeve (11) is installed in the middle of the side wall of the rotating blade (10), and the second rotating shaft sleeve (21) is installed at both ends of the side wall of the fixed blade (20). The outer wall of the rotating shaft (30) has a spiral-shaped limiting groove (31) at both ends. The inner wall of the rotating shaft (30) is equipped with a reinforcing rib (33) for bearing at the limiting groove (31). The top of the inner wall of the rotating shaft (30) is equipped with an inner shaft core (50) for reducing the reset speed. The bottom end of the inner shaft core (50) is equipped with a bottom rod (51). The inner wall of the inner shaft core (50) is equipped with an oil storage cavity (52) for storing oil. The inner walls on both sides of the oil storage cavity (52) are equipped with piston walls (53) for maintaining the air pressure balance inside and outside the oil storage cavity (52). The bottom of the outer wall of the bottom rod (51) is inserted with a transmission rod (70). The transmission rod (70) is slidably connected to the inner wall of the limiting groove (31) and installed on the inner wall of the first rotating shaft sleeve (11). The rotating shaft (30) is equipped with an upper sealing block (40) and a lower sealing block (41) for sealing at both ends. The upper sealing block (40) and the lower sealing block (41) are inserted into the two ends of the rotating shaft (30). An oil needle (42) is installed at the bottom of the upper sealing block (40) and is inserted into the inner wall of the oil storage cavity (52). The transmission rod (70) is provided with reset components at both ends for resetting the rotating blade (10).

2. Hydraulic damper hinge according to claim 1, characterized in that The reset assembly includes a first reset spring (61) and a second reset spring (82). The first reset spring (61) is installed between the inner shaft core (50) and the reinforcing rib (33), and the second reset spring (82) is installed between the lower sealing block (41) and the transmission rod (70). The first reset assembly and the second reset assembly are respectively equipped with a first mating structure and a second mating structure for mating installation.

3. The hydraulic damper hinge of claim 2, wherein, The first mating structure includes a first spring sleeve (60), which is inserted and installed on the outer wall of the bottom rod (51), and the top of the first reset spring (61) is nested in the bottom outer wall of the first spring sleeve (60).

4. The hydraulically damped hinge according to claim 2, characterized in that, The second mating structure includes a transmission rod (80) and a second spring sleeve (81). The top of the second return spring (82) is nested in the bottom outer wall of the second spring sleeve (81), and the two ends of the transmission rod (80) abut against the bottom positions of the transmission insert (70) and the second spring sleeve (81), respectively.

5. The hydraulic damper hinge of claim 1, wherein, The inner diameter of the piston wall (53) is 10 micrometers.

6. The hydraulic damper hinge of claim 1, wherein, Both ends of the rotating shaft (30) are fitted with gaskets (32). The gaskets (32) are installed at the connection between the first rotating shaft sleeve (11) and the second rotating shaft sleeve (21). The inner wall of the gasket (32) at the top is provided with a second limiting groove that matches the first limiting groove on the first rotating shaft sleeve (11) and the second rotating shaft sleeve (21).

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