Hydraulic adjustable hinge

Abstract

The utility model discloses a hydraulic adjustable hinge, which belongs to the field of hydraulic buffering hinges, is used for buffering door closing of a door leaf, solves the assembly problem of a small-size hydraulic buffering hinge, and comprises a left hinge piece, a right hinge piece, a spring, a central shaft, a damper, a spring sleeve and a transmission shaft, the left hinge piece and the right hinge piece are fixedly connected to the spring sleeve and the transmission shaft in a sleeved mode, the spring is connected to the center shaft in a sleeved mode and sequentially penetrates through the spring sleeve and the transmission shaft, the spring sleeve is connected to the transmission shaft, the transmission shaft is connected to the damper in a sleeved mode, the two ends of the spring are fixed to the center shaft, one end of the center shaft is in power connection with the damper, and the other end of the center shaft is in power connection with the damper. The other end of the center shaft is connected with an elastic force adjusting mechanism, the transmission shaft is rotationally connected to the center shaft, the transmission shaft rotates relative to the center shaft to drive the center shaft to do axial movement, and the axial movement of the center shaft can drive the transmission shaft to rotate relative to the center shaft.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic buffer hinges, and specifically relates to a hydraulically adjustable hinge. Background Technology

[0002] Existing hydraulic soft-close hinges typically consist of two hinge blades, a transmission mechanism, a soft-close device, and a reset device. The two blades are installed on the door leaf and the door frame, respectively. External force opens the door leaf, causing one blade to rotate relative to the other, opening the door and energizing the reset device. The reset device then releases this energy, which is converted into rotational torque by the transmission mechanism and soft-close device and transmitted to the door leaf, thus achieving soft-close closure. Spring-based reset devices typically use an end cap and the transmission shaft of the transmission mechanism to compress and release the spring. Due to the spring's length, its assembly dimensions are relatively large, occupying significant space within the hinge shaft tube. When the overall hinge size is small, yet a large spring is still required for energy storage, spring assembly becomes difficult. Therefore, it is necessary to simplify the assembly structure between the spring and the hinge shaft tube. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulically adjustable hinge that optimizes the spring assembly structure and meets the assembly dimensions of small-sized hydraulic hinges.

[0004] A hydraulically adjustable hinge includes a left flap, a right flap, and a spring, a central shaft, a damper, a spring sleeve, and a drive shaft arranged along the same axis. The left and right flaps are sleeved and fixed to the spring sleeve and the drive shaft. The spring is sleeved to the central shaft and is sequentially mounted through the spring sleeve and the drive shaft. The spring sleeve is connected to the drive shaft, and the drive shaft is sleeved to the damper. Both ends of the spring are fixed to the central shaft. One end of the central shaft is poweredly connected to the damper, and the other end of the central shaft is connected to a spring force adjustment mechanism. The drive shaft is rotatably connected to the central shaft. The rotational movement of the drive shaft relative to the central shaft can drive the central shaft to move axially, and the axial movement of the central shaft can drive the drive shaft to rotate relative to the central shaft.

[0005] The central shaft is provided with an upper locking pin and a lower locking pin, and the spring is installed between the upper locking pin and the lower locking pin.

[0006] The drive shaft is provided with a spiral groove, the upper retaining pin is installed in the spiral groove, and the upper retaining pin is poweredly connected to the damper.

[0007] The central shaft is provided with a longitudinal groove, and the lower locking pin is installed in the longitudinal groove.

[0008] The elastic adjustment mechanism includes an adjusting screw, which is inserted into and threaded to the other end of the central shaft. The other end of the central shaft is connected to a transmission end, and the screw head of the adjusting screw protrudes along the axial direction of the transmission end.

[0009] A thrust bearing is installed at one end of the transmission end, and the other end of the central shaft is installed on a spring sleeve via a ball bearing.

[0010] The right leaf is sleeved and fixed to the drive shaft, and the left leaf is sleeved and fixed to the drive end.

[0011] The beneficial effects of this utility model are: optimizing the end pressing assembly method of the spring and the transmission component to an assembly method in which the spring is fitted onto the central shaft and the central shaft is rotatably connected to the transmission shaft, reducing the axial assembly size of the spring, saving space for the spring to be installed in the shaft tube, and meeting the assembly size requirements of small-sized hydraulic hinges. Attached Figure Description

[0012] Figure 1 This is a perspective view of the hydraulically adjustable hinge of this utility model;

[0013] Figure 2 for Figure 1 The exploded view of the hydraulically adjustable hinge is shown. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] like Figure 1 , 2 As shown, the hydraulically adjustable hinge includes a left leaf 1, a right leaf 2, a spring 3, a central shaft 4, a damper 5, a spring sleeve 6, a drive shaft 8, and a spring adjustment mechanism 9. The spring 3 is sleeved on the central shaft 4, and is sequentially mounted on the spring sleeve 6 and drive shaft 8. The spring sleeve 6 is threaded to the drive shaft 8, and the drive shaft 8 is sleeved on the damper 5. The left leaf 1 and right leaf 2 are spaced apart by ball bearings 16. The right leaf 2 is sleeved and keyed to the drive shaft 8, and the left leaf 1 is sleeved and keyed to the drive end 10. This assembly method, where the spring 3 is sleeved on the central shaft 4 and the central shaft 4 is rotatably connected to the drive shaft 8, reduces the axial assembly size of the spring, saving space for the spring installation within the shaft tube and meeting the assembly size requirements of a small-sized hydraulic hinge.

[0016] One end of the central shaft 4 is provided with an upper locking pin 14, and the central shaft 4 is provided with a lower locking pin 15. The spring 3 abuts between the upper locking pin 14 and the lower locking pin 15. The central shaft 4 is provided with a longitudinal groove 12, and the lower locking pin 15 is installed in the longitudinal groove 12. The lower end of the central shaft 4 is connected to a spring force adjustment mechanism 9, which includes an adjusting screw 7. The adjusting screw 7 is inserted into the lower end of the central shaft 4 and threaded. The lower end of the central shaft 4 is connected to a transmission end head 10, which is sealed by a lower cover 17. The screw head of the adjusting screw 7 protrudes axially along the transmission end head 10 and the lower cover 17. A thrust bearing 11 is installed at the end of the transmission end head 10, and the lower end of the central shaft 4 is installed on the spring sleeve 6 through a ball bearing 16. Turning the adjusting screw 7 causes the transmission end head 10 to press against the spring 3, thereby adjusting the amount of compressed energy stored in the spring 3.

[0017] The drive shaft 8 is provided with a single-sided spiral groove 13, and an upper retaining pin 14 is installed in the spiral groove 13. The upper retaining pin 14 is poweredly connected to the piston rod of the damper 5. The damper 5 is a hydraulic damper and is sealed by the upper cover 18.

[0018] The following describes the action of the soft hinge when the door opens or closes:

[0019] When the door is opened, the right leaf 2 rotates relative to the left leaf 1 and opens. The drive shaft 8 rotates and drives the upper locking pin 14 to move downward along the spiral groove 13. The upper locking pin 14 drives the drive shaft 8 to rotate relative to the central shaft 4. At the same time, under the sliding limit action of the lower locking pin 15 along the longitudinal groove 12, it drives the central shaft 4 to move downward axially. The upper locking pin 14 pushes the spring 3 to compress and store energy.

[0020] When the external force that opens the right leaf 2 and the left leaf 1 disappears, the spring 3 releases its compressed energy and pushes the central shaft 4 to move axially upward under the sliding limit action of the lower locking pin 15 along the longitudinal groove 12, and drives the upper locking pin 14 to move upward along the spiral groove 13, thereby driving the transmission shaft 8 to rotate relative to the central shaft 4, so that the transmission shaft 8 drives the right leaf 2 to rotate and close the door. At the same time, the damper 5 buffers the door to achieve automatic buffer closing.

Claims

1. A hydraulically adjustable hinge, characterized in that, The device includes a left leaf (1), a right leaf (2), a spring (3), a central shaft (4), a damper (5), a spring sleeve (6), and a drive shaft (8) arranged along the same axis. The left leaf (1) and the right leaf (2) are sleeved and fixed to the spring sleeve (6) and the drive shaft (8). The spring (3) is sleeved on the central shaft (4). The spring (3) is sleeved through the spring sleeve (6) and the drive shaft (8) in sequence. The spring sleeve (6) is connected to the drive shaft (8). The drive shaft (8) is sleeved on the damper (5). The two ends of the spring (3) are fixed to the central shaft (4). One end of the central shaft (4) is powered to the damper (5). The other end of the central shaft (4) is connected to a spring force adjustment mechanism (9). The drive shaft (8) is rotatably connected to the central shaft (4). The rotation of the drive shaft (8) relative to the central shaft (4) can drive the central shaft (4) to move axially. The axial movement of the central shaft (4) can drive the drive shaft (8) to rotate relative to the central shaft (4).

2. The hydraulically adjustable hinge according to claim 1, characterized in that, The central shaft (4) is provided with an upper locking pin (14) and a lower locking pin (15), and the spring (3) is installed between the upper locking pin (14) and the lower locking pin (15).

3. The hydraulically adjustable hinge according to claim 2, characterized in that, The drive shaft (8) is provided with a spiral groove (13), the upper locking pin (14) is installed in the spiral groove (13), and the upper locking pin (14) is poweredly connected to the damper (5).

4. The hydraulically adjustable hinge according to claim 2, characterized in that, The central shaft (4) is provided with a longitudinal groove (12), and the lower locking pin (15) is installed in the longitudinal groove (12).

5. The hydraulically adjustable hinge according to claim 1, characterized in that, The elastic adjustment mechanism (9) includes an adjustment screw (7), which is inserted into the other end of the central shaft (4) and threaded. The other end of the central shaft (4) is connected to a transmission end (10), and the screw head of the adjustment screw (7) protrudes along the axial direction of the transmission end.

6. The hydraulically adjustable hinge according to claim 5, characterized in that, The transmission end (10) is equipped with a thrust bearing (11), and the other end of the central shaft (4) is mounted on the spring sleeve (6) via a ball bearing (16).

7. The hydraulically adjustable hinge according to claim 5, characterized in that, The right leaf (2) is sleeved and fixed to the drive shaft (8), and the left leaf (1) is sleeved and fixed to the drive end (10).

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