Dual action spring hinge

By designing components such as spring cylinders and sound-dampening pads for double-opening spring hinges, the problems of insufficient buffering and stability of hinges were solved, achieving buffered closing and silent operation of the door leaf, and improving service life and stability.

CN224679341UActive Publication Date: 2026-08-25潘建新
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Patent Information

Application Number
CN202521944886.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-08-25
Estimated Expiration
2035-09-10

AI Technical Summary

Technical Problem

Existing hinges lack a buffer function, causing the door to close quickly, generating impact and noise. They are also prone to wear and loosening, resulting in a short service life.

Method used

A double-opening spring hinge was designed, comprising components such as a spring cylinder, a drive shaft, a shaft connector, and a sound-absorbing pad. Through the buffering effect of the spring cylinder and the shock absorption effect of the sound-absorbing pad, the door leaf can be closed slowly, and the structural stability is improved by rotating the steel sleeve and the shaft connector.

Benefits of technology

It effectively avoids the impact and noise of rapid door closing, extends service life, and improves the stability and durability of the connection. It is suitable for furniture cabinet doors and interior doors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double -open spring hinge, it includes the installation vane seat, the both sides symmetry of this installation vane seat is equipped with the installation cylinder seat, be equipped with spring cylinder on this installation cylinder seat, the left and right ends symmetry of this installation cylinder seat is equipped with the installation wear part, one end of spring cylinder is connected with power axle, and the middle part of power axle is connected with axle connecting piece, and the end of one end installation wear part is equipped with movable lug, and the middle part recess of movable lug is equipped with pivot hole, and the middle part of axle connecting piece is equipped with axle connecting groove, and the axle connecting groove and pivot hole in the connection have connecting pivot. The utility model discloses a double -open spring hinge simple structure, convenient installation can produce buffering effect in the process that the door leaf closes through spring cylinder, avoid the impact and noise caused by the quick closing of door body. Meanwhile, through setting up axle connecting piece, movable lug and connecting pivot, improve the stability and durability of transmission connection.
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Description

Technical Field

[0001] This utility model belongs to the field of door and window hardware technology, specifically relating to a double-opening spring hinge. Background Technology

[0002] Hinges are commonly used connectors for doors, windows, cabinets, and other components. Their main function is to enable the opening and closing of doors or panels.

[0003] In existing technologies, most common hinges are simple mechanical structures that rely on the rotation of metal pins and blades to open and close. While these traditional hinges are simple in structure, they generally have shortcomings in practical use. Due to the lack of a buffer function, the door leaf is prone to closing rapidly due to inertia during the closing process, generating a large impact force, which not only affects the comfort of use but also easily damages the door or frame. Direct friction between metal parts during opening and closing, especially during rapid closing, often generates a lot of noise, which cannot meet the requirements of places with high noise requirements such as bedrooms, offices, or furniture cabinet doors. Due to the lack of shock absorption and buffer mechanisms, the pins and connecting parts are prone to wear or loosening during long-term use, resulting in problems such as door leaf sagging or incomplete closing, and a short service life.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a double-opening spring hinge to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-opening spring hinge, comprising a mounting blade seat, mounting cylinder seats symmetrically arranged on both sides of the mounting blade seat, a spring cylinder mounted on the mounting cylinder seat, mounting through parts symmetrically arranged at the left and right ends of the mounting cylinder seat, a power shaft connected to one end of the spring cylinder, a shaft connector connected to the middle of the power shaft, a movable protrusion at one end of the mounting through part, a rotating shaft connection hole recessed in the middle of the movable protrusion, a shaft connection groove opened in the middle of the shaft connector, and a connecting rotating shaft connected in the shaft connection groove and the rotating shaft connection hole.

[0007] Furthermore, a connecting groove is provided in the middle of the power shaft, and the shaft connector is connected in the connecting groove. Several adjusting holes are evenly provided on the side of the power shaft, and adjusting grooves are provided on the side of the shaft connector. The adjusting grooves and adjusting holes are correspondingly arranged. Power adjusting pins are inserted in the adjusting holes and adjusting grooves for fixing and adjusting the relative position between the power shaft and the shaft connector.

[0008] Furthermore, a rotating steel sleeve is connected between the spring cylinder and the power shaft. The rotating steel sleeve is made of steel and is fitted onto the outer side of the end of the power shaft, and is connected to the port of the spring cylinder.

[0009] Furthermore, a sound-absorbing pad is connected between the power shaft and the mounting part, and the sound-absorbing pad is made of soft rubber material.

[0010] Furthermore, a sound-absorbing rubber pad is connected between the movable protrusion and the spring cylinder, and the sound-absorbing rubber pad is made of soft rubber material.

[0011] Furthermore, the end of the shaft connector is provided with a screw head connection part, and the screw head connection part is recessed with a screw head connection groove, in which a fastening screw head is embedded.

[0012] Furthermore, the surface of the blade mounting seat has several screw holes.

[0013] This utility model has the following advantages: The mounting cylinder seat has symmetrical mounting cylinder seats on both sides, each mounting cylinder seat has a spring cylinder, and mounting through-parts are symmetrically arranged at both ends of the mounting cylinder seat. One end of the spring cylinder is connected to a power shaft, and a shaft connector is connected to the middle of the power shaft. A movable protrusion is provided at the end of the mounting through-part, and a shaft connection hole is recessed in the middle of the movable protrusion. A shaft connection groove is opened in the middle of the shaft connector, and a connecting shaft is connected between the shaft connection groove and the shaft connection hole. This utility model's double-opening spring hinge has a simple structure and is easy to install. It can generate a buffering effect during door closing through the spring cylinder, avoiding impact and noise caused by rapid door closing. At the same time, by setting the shaft connector, movable protrusion, and connecting shaft, the stability and durability of the transmission connection are improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0016] Reference numerals: 10 for mounting blade seat; 11 for mounting cylinder seat; 20 for spring cylinder; 111 for mounting through part; 30 for drive shaft; 40 for shaft connector; 12 for movable protrusion; 121 for rotating shaft connection hole; 41 for shaft connection groove; 50 for connecting rotating shaft; 31 for connecting through groove; 32 for adjusting through hole; 42 for adjusting through groove; 60 for power adjusting pin; 70 for rotating steel sleeve; 33 for sound-absorbing shim; 122 for sound-absorbing rubber pad; 43 for screw head connection part; 431 for screw head connection groove; 80 for fastening screw head; 13 for screw through hole. Detailed Implementation

[0017] like Figures 1 to 2As shown, a double-opening spring hinge includes a mounting blade seat 10. Mounting cylinder seats 11 are symmetrically arranged on both sides of the mounting blade seat 10. A spring cylinder 20 is mounted on each mounting cylinder seat 11. Mounting through portions 111 are symmetrically arranged at both ends of the mounting cylinder seat 11. One end of the spring cylinder 20 is connected to a power shaft 30. A shaft connector 40 is connected to the middle of the power shaft 30. A movable protrusion 12 is provided at one end of the mounting through portion 111. A rotating shaft connection hole 121 is recessed in the middle of the movable protrusion 12. The shaft connector... A shaft connecting groove 41 is provided in the middle of hinge 40. A connecting shaft 50 is connected to the shaft connecting groove 41 and the shaft connecting hole 121. During use, the hinge seat drives the power shaft 30 to rotate during the opening and closing of the door. The power shaft 30 is linked with the spring cylinder 20 through the shaft connecting piece 40 and the connecting shaft 50. This allows the spring cylinder 20 to buffer the rotation of the power shaft 30 during the closing process, thereby achieving a slow closing of the door and avoiding the impact and noise caused by the lack of buffering in traditional hinges. At the same time, the cooperation between the movable protrusion 12 and the shaft connecting hole 121 makes the rotational connection more stable and reduces the problem of loosening after long-term use. The double-opening spring hinge of this utility model has a simple overall structure, is easy to install, has a stable connection, and has a good buffering effect. It can significantly improve the service life and safety of door opening and closing, and is suitable for furniture cabinet doors, interior doors, and various door structures that require buffered closing.

[0018] In practical implementation, a connecting groove 31 is provided in the middle of the power shaft 30, and the shaft connector 40 is connected in the connecting groove 31. Several adjusting holes 32 are evenly provided on the side of the power shaft 30, and adjusting grooves 42 are provided on the side of the shaft connector 40. The adjusting grooves 42 and adjusting holes 32 are correspondingly arranged, and power adjusting pins 60 are inserted into the adjusting holes 32 and adjusting grooves 42 for fixing and adjusting the relative position between the power shaft 30 and the shaft connector 40. During use, the user can adjust the position of the power adjusting pins 60 to change the relative connection state between the power shaft 30 and the shaft connector 40 according to the weight of the door and the required buffering effect, thereby adjusting the force effect of the spring cylinder 20. This not only allows for flexible control of the door closing speed and damping effect but also avoids structural loosening caused by long-term use, improving overall stability and durability.

[0019] In practical implementation, a rotating steel sleeve 70 is connected between the spring cylinder 20 and the power shaft 30. This rotating steel sleeve 70 is made of steel, offering high strength and good wear resistance. The rotating steel sleeve 70 is fitted onto the outer end of the power shaft 30 and connects to the port of the spring cylinder 20, allowing for smooth transmission between the power shaft 30 and the spring cylinder 20 during rotation. During use, the door leaf drives the power shaft 30 to rotate. The rotating steel sleeve 70 acts as a transition and buffer between the power shaft 30 and the spring cylinder 20, effectively reducing wear caused by direct friction between them and improving the stability and service life of the entire structure. Furthermore, because the rotating steel sleeve 70 is made of steel, it can withstand large rotational torques and frequent opening and closing actions, ensuring the durability and reliability of the double-leaf spring hinge during long-term use.

[0020] In practical implementation, a sound-absorbing pad 33 is connected between the drive shaft 30 and the mounting through-hole 111. This sound-absorbing pad 33 is made of soft rubber material, possessing good elasticity and shock absorption performance. During use, when the door opens and closes, causing the drive shaft 30 to rotate, the sound-absorbing pad 33 effectively buffers the friction and collision between the drive shaft 30 and the mounting through-hole 111, reducing noise generated by direct metal-to-metal contact, thus achieving a quiet operation. Simultaneously, the sound-absorbing pad 33 also reduces wear on the drive shaft 30, extending its overall service life and further improving the stability and comfort of the double-opening spring hinge.

[0021] In practical implementation, a sound-absorbing rubber pad 122 is connected between the movable protrusion 12 and the spring cylinder 20. The sound-absorbing rubber pad 122 is made of soft rubber material and has good shock absorption and sound insulation performance. The sound-absorbing rubber pad 122 is located at the contact position between the movable protrusion 12 and the spring cylinder 20 to form a buffer when the two interact, thereby extending the overall service life of the double-opening spring hinge.

[0022] In specific implementation, the end of the shaft connector 40 is provided with a screw head connection part 43. The screw head connection part 43 is recessed with a screw head connection groove 431. A fastening screw head 80 is embedded in the screw head connection groove 431. In use, the fastening screw head 80 can be further tightened by being embedded in the screw head connection groove 431, so as to avoid loosening caused by frequent rotation during long-term use.

[0023] In practice, the surface of the mounting blade seat 10 is provided with several screw holes 13 for fixing the mounting blade seat 10 to the door frame or cabinet with screws.

[0024] In summary, the mounting cylinder seat 10 has symmetrical mounting cylinder seats 11 on both sides, and a spring cylinder 20 is mounted on each mounting cylinder seat 11. Mounting through parts 111 are symmetrically arranged at both ends of the mounting cylinder seat 11. One end of the spring cylinder 20 is connected to a power shaft 30, and a shaft connector 40 is connected to the middle of the power shaft 30. A movable protrusion 12 is provided at one end of the mounting through part 111, and a rotating shaft connection hole 121 is recessed in the middle of the movable protrusion 12. A shaft connection groove 41 is formed in the middle of the shaft connector 40, and a connecting rotating shaft 50 is connected between the shaft connection groove 41 and the rotating shaft connection hole 121. This invention's double-opening spring hinge has a simple structure and is easy to install. It can provide a buffering effect during door closing through the spring cylinder, avoiding impact and noise caused by rapid door closing. At the same time, the stability and durability of the transmission connection are improved by setting the shaft connector, movable protrusion, and connecting rotating shaft.

Claims

1. A double-opening spring hinge, characterized in that, It includes a blade mounting seat (10), on which mounting cylinder seats (11) are symmetrically arranged on both sides. A spring cylinder (20) is provided on the mounting cylinder seat (11). Mounting through parts (111) are symmetrically arranged at the left and right ends of the mounting cylinder seat (11). A power shaft (30) is connected to one end of the spring cylinder (20). A shaft connector (40) is connected to the middle of the power shaft (30). A movable protrusion (12) is provided at the end of the mounting through part (111). A rotating shaft connection hole (121) is recessed in the middle of the movable protrusion (12). A shaft connection groove (41) is opened in the middle of the shaft connector (40). A connecting shaft (50) is connected in the shaft connection groove (41) and the rotating shaft connection hole (121).

2. The double-opening spring hinge according to claim 1, characterized in that, The power shaft (30) has a connecting groove (31) in the middle, and the shaft connector (40) is connected in the connecting groove (31). The power shaft (30) has a plurality of adjusting holes (32) evenly distributed on its side, and the shaft connector (40) has an adjusting groove (42) on its side. The adjusting groove (42) and the adjusting hole (32) are correspondingly arranged. The adjusting hole (32) and the adjusting groove (42) are provided with a power adjusting pin (60) for fixing and adjusting the relative position between the power shaft (30) and the shaft connector (40).

3. The double-opening spring hinge according to claim 2, characterized in that, A rotating steel sleeve (70) is connected between the spring cylinder (20) and the power shaft (30). The rotating steel sleeve (70) is made of steel and is fitted on the outer side of the end of the power shaft (30) and is connected to the port of the spring cylinder (20).

4. The double-opening spring hinge according to claim 3, characterized in that, A sound-absorbing pad (33) is connected between the power shaft (30) and the mounting part (111), and the sound-absorbing pad (33) is made of soft rubber material.

5. The double-opening spring hinge according to claim 4, characterized in that, The movable protrusion (12) is connected to the spring cylinder (20) by a sound-absorbing rubber pad (122), which is made of soft rubber material.

6. The double-opening spring hinge according to claim 5, characterized in that, The end of the shaft connector (40) is provided with a screw head connection part (43), and the screw head connection part (43) is recessed with a screw head connection groove (431), and a fastening screw head (80) is embedded in the screw head connection groove (431).

7. The double-opening spring hinge according to claim 1, characterized in that, The surface of the mounting blade seat (10) has several screw holes (13).