Buffering hinge

Abstract

The utility model discloses a buffering hinge, which belongs to the field of buffering hinges, is used for buffering door closing of a door leaf, solves the problems of simplifying transmission parts and improving transmission efficiency, and comprises an upper hinge piece, a lower hinge piece, a damper, a transmission shaft, a rotary wedge mechanism, a lower sleeve and an upper sleeve, the upper hinge piece is fixedly connected to the upper sleeve in a sleeved mode, the lower hinge piece is fixedly connected to the lower sleeve in a sleeved mode, the lower sleeve is rotationally connected to the transmission shaft in a sleeved mode, a spring is arranged in the lower sleeve, one end of the spring abuts against one end of the lower sleeve, the other end of the spring abuts against one end of the transmission shaft, and a damper is arranged in the upper sleeve. The other end of the transmission shaft abuts against the damper, the transmission shaft can be driven to do axial movement through the relative rotation movement of the upper sleeve and the rotary wedge mechanism, and the relative rotation movement of the rotary wedge mechanism and the upper sleeve can be driven through the axial movement of the transmission shaft.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of buffer hinge, especially a kind of buffer hinge of quick installation. BACKGROUND

[0002] Buffer hinge generally includes two pieces of leaf, energy storage, transmission shaft and buffer, two pieces of leaf are installed in door leaf and door frame respectively, open door leaf by external force to make one piece of leaf rotate relative to another piece of leaf, the rotating torque is transmitted to buffer mechanism by transmission mechanism, to realize the buffer closing of door leaf.The transmission shaft of prior art is driven to rotate by transmission pin along helical groove on transmission sleeve, the transmission component of this transmission mode is more, which affects the smoothness of transmission. SUMMARY

[0003] The utility model aims at providing a kind of buffer hinge, solve the problem of simplifying transmission component and improving transmission efficiency.

[0004] The buffer hinge includes upper leaf, lower leaf, damper, transmission shaft, rotary wedge mechanism and lower sleeve and upper sleeve arranged along the same axis, the upper leaf is sleeved and fixed to the upper sleeve, the lower leaf is sleeved and fixed to the lower sleeve, the lower sleeve is rotatably sleeved on the transmission shaft, the lower sleeve is internally provided with spring, one end of the spring is abutted to one end of the lower sleeve, the other end of the spring is abutted to one end of the transmission shaft, the upper sleeve is internally provided with damper, the other end of the transmission shaft is abutted to the damper, the relative rotary motion of upper sleeve and rotary wedge mechanism can drive the axial motion of transmission shaft, the axial motion of transmission shaft can drive the relative rotary motion of rotary wedge mechanism and upper sleeve.

[0005] The rotary wedge mechanism includes upper slider and lower slider, the upper slider and lower slider are axially matched by inclined slot, and the inclined slot is helical.

[0006] The inclined slot is composed of lower helical groove, lower vertical groove, upper helical groove and upper vertical groove, the lower slider is symmetrically provided with lower helical groove and lower vertical groove in circumferential direction, the upper slider is symmetrically provided with upper helical groove and upper vertical groove in circumferential direction, the lower helical groove is engaged with upper helical groove, and the lower vertical groove is engaged with upper vertical groove.

[0007] The power shaft of the damper can pass through the upper slider and lower slider and abut to the other end of the transmission shaft.

[0008] The other end of the transmission shaft is rotatably inserted into the lower slider by shaft head, and the other end of the transmission shaft abuts to the lower slider by end face.

[0009] The upper sleeve is sleeved on the upper slider and installed by interference fit.

[0010] The inner wall of the lower sleeve is provided with circumferentially distributed keyways, the drive shaft is provided with key teeth along the circumferential direction, the key teeth are slidably installed in the keyways, and the other end of the spring abuts against the keyways.

[0011] The lower and upper page pieces are respectively sleeved on the lower and upper sleeves via rotating parts, and the rotating parts are fixed to the lower and upper sleeves via keys.

[0012] The joint of the rotating parts of the lower and upper pages is axially abutted by a planar bearing.

[0013] The beneficial effects of this utility model are: the transmission assembly composed of the transmission shaft and the rotating wedge mechanism has a simple structure. The rotating wedge mechanism converts rotational motion into axial motion and axial motion into rotational motion without other transmission components, which simplifies the transmission mechanism and improves transmission efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of the buffer hinge of this utility model;

[0015] Figure 2 for Figure 1 Exploded view. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] like Figure 1 , 2 As shown, the buffer hinge includes an upper leaf piece 1, a lower leaf piece 2, a damper 3, a drive shaft 4, a rotating wedge mechanism A, and a lower sleeve 5 and an upper sleeve 6 arranged along the same axis. The upper leaf piece 1 is sleeved and fixed to the upper sleeve 6, and the lower leaf piece 2 is sleeved and fixed to the lower sleeve 5. The lower sleeve 5 is rotatably sleeved on the drive shaft 4. A spring 7 is built into the lower sleeve 5, with one end of the spring 7 abutting against one end of the lower sleeve 5 and the other end of the spring 7 abutting against one end of the drive shaft 4. The damper 3 is built into the upper sleeve 6. The inner wall of the lower sleeve 5 is provided with circumferentially distributed keyways 15, and the drive shaft 4 is provided with circumferentially distributed key teeth 16, which are slidably installed in the keyways 15. The other end of the spring 7 abuts against the keyways 15. The joint of the rotating parts 17 of the lower leaf piece 1 and the upper leaf piece 2 is axially abutted by a plane bearing 19. The lower page 1 and the upper page 2 are respectively sleeved on the lower sleeve 5 and the upper sleeve 6 through the rotating part 16, and the rotating part 17 is fixed to the lower sleeve 5 and the upper sleeve 6 through the key connection 18.

[0018] The rotating wedge mechanism A comprises an upper sliding block 8 and a lower sliding block 9, the upper sliding block 8 and the lower sliding block 9 are axially matched through a helical groove B. The upper sleeve 6 is sleeved on the upper sliding block 8 and is installed through interference fit. The helical groove B is composed of a lower helical groove 10, a lower vertical groove 11, an upper helical groove 12 and an upper vertical groove 13, the lower helical groove 10 and the lower vertical groove 11 are symmetrically arranged on the lower sliding block 9 in the circumferential direction, the upper helical groove 12 and the upper vertical groove 13 are symmetrically arranged on the upper sliding block 8 in the circumferential direction, the lower helical groove 10 is engaged with the upper helical groove 12, and the lower vertical groove 11 is engaged with the upper vertical groove 13. The power shaft 3a of the damper 3 passes through the upper sliding block 8, the lower sliding block 9 and abuts against the other end of the transmission shaft 4 from the mounting hole 8a of the upper sliding block 8. The other end of the transmission shaft 4 is rotatably inserted into the lower sliding block 9 through the shaft head 14, and the other end of the transmission shaft 4 abuts against the lower sliding block 9 through the end face.

[0019] The following is the action process of the buffer hinge when the door leaf is opened or closed:

[0020] When the door leaf is opened, the upper leaf 1 rotates to open relative to the lower leaf 2, the upper sleeve 6 rotates and drives the upper sliding block 8 to rotate, the upper sliding block 8 moves along the lower helical groove 10 of the lower sliding block 9 through the upper helical groove 12, the rotation of the upper sliding block 8 is converted into the axial movement of the lower sliding block 9 downward by the movement of the wedge mechanism, so that the lower sliding block 9 drives the transmission shaft 4 to move axially downward, and then the transmission shaft 4 slides through the key groove 15 of the lower sleeve 5 through the key tooth 16, so as to drive the spring 7 to compress and store energy.

[0021] When the external force on the upper leaf 1 and the lower leaf 2 disappears when the door leaf is opened, the spring 7 releases the compressed stored energy to drive the transmission shaft 4 to move axially upward, and drives the lower sliding block 9 to move axially upward, the lower helical groove 10 of the lower sliding block 9 moves along the upper sliding block 8 through the upper helical groove 12, the axial movement of the lower sliding block 9 is converted into the rotation of the upper sliding block 8 by the movement of the wedge mechanism, so as to drive the upper sleeve 6 to rotate, the upper sleeve 6 drives the upper leaf 1 to rotate, and the automatic closing of the door leaf is realized, at the same time, the shaft head 14 of the transmission shaft 4 abuts against the power shaft 3a of the damper 3, and the damping force of the damper is used to realize the buffer closing of the door leaf.

Claims

1. A cushioned hinge, characterized in that The application relates to a page turning device, which comprises an upper page sheet (1), a lower page sheet (2), a damper (3), a transmission shaft (4), a rotary inclined wedge mechanism (A), a lower sleeve (5) and an upper sleeve (6) arranged along the same axis, the upper page sheet (1) is sleeved and fixed to the upper sleeve (6), the lower page sheet (2) is sleeved and fixed to the lower sleeve (5), the lower sleeve (5) is rotationally sleeved to the transmission shaft (4), the lower sleeve (5) is internally provided with a spring (7), one end of the spring (7) abuts against one end of the lower sleeve (5), the other end of the spring (7) abuts against one end of the transmission shaft (4), the upper sleeve (6) is internally provided with the damper (3), the other end of the transmission shaft (4) abuts against the damper (3), the relative rotary motion between the upper sleeve (6) and the rotary inclined wedge mechanism (A) can drive the transmission shaft (4) to axially move, and the axial motion of the transmission shaft (4) can drive the relative rotary motion between the rotary inclined wedge mechanism (A) and the upper sleeve (6).

2. The bumper hinge of claim 1, wherein, The rotary inclined wedge mechanism (A) comprises an upper sliding block (8) and a lower sliding block (9), the upper sliding block (8) and the lower sliding block (9) are axially matched through an inclined groove (B), and the inclined groove (B) is in a spiral shape.

3. The cushioned hinge of claim 2, wherein, The inclined groove (B) is composed of a lower spiral groove (10), a lower vertical groove (11), an upper spiral groove (12) and an upper vertical groove (13), the lower sliding block (9) is symmetrically provided with the lower spiral groove (10) and the lower vertical groove (11) in a circumferential direction, the upper sliding block (8) is symmetrically provided with the upper spiral groove (12) and the upper vertical groove (13) in the circumferential direction, and the lower spiral groove (10) and the upper spiral groove (12) and the lower vertical groove (11) and the upper vertical groove (13) are correspondingly engaged.

4. A cushioned hinge according to claim 2 or 3, characterised in that, A power shaft (3a) of the damper (3) can pass through the upper sliding block (8) and the lower sliding block (9) and abut against the other end of the transmission shaft (4).

5. The bumper hinge of claim 4, wherein, The other end of the transmission shaft (4) is rotationally inserted into the lower sliding block (9) through a shaft head (14), and the other end of the transmission shaft (4) abuts against the lower sliding block (9) through an end face.

6. The bumper hinge of claim 4, wherein, The upper sleeve (6) is sleeved to the upper sliding block (8) and is installed through interference fit.

7. The bumper hinge of claim 1, wherein, The inner wall of the lower sleeve (5) is provided with circumferentially distributed key grooves (15), the transmission shaft (4) is provided with key teeth (16) in the circumferential direction, the key teeth (16) are slidably installed in the key grooves (15), and the other end of the spring (7) abuts against the key grooves (15).

8. The bumper hinge of claim 1, wherein, The lower page sheet (2) and the upper page sheet (1) are respectively sleeved to the lower sleeve (5) and the upper sleeve (6) through rotating parts (17), and the rotating parts (17) are fixed to the lower sleeve (5) and the upper sleeve (6) through key connections (18).

9. The bumper hinge of claim 8, wherein, The junctions of the rotating parts (17) of the lower page sheet (2) and the upper page sheet (1) axially abut through plane bearings (19).

Images