Detachable buffer hinge

Abstract

The utility model discloses a detachable 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 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, a transmission shaft and a spring are 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, a spiral groove is formed in one end of the upper sleeve, a transmission pin is arranged at the other end of the transmission shaft, the transmission pin is installed in the spiral groove, the transmission shaft can be driven to move axially through movement of the spiral groove along the transmission pin, and the upper sleeve can be driven to rotate through movement of the transmission pin along the spiral groove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of buffer hinge, especially relates to a buffer hinge which can be disassembled and has less transmission components. BACKGROUND

[0002] The buffer hinge generally comprises two leafs, an energy storage member, a transmission mechanism and a buffer member, the two leafs are respectively installed on a door leaf and a door frame, one leaf is rotated relative to the other leaf by opening the door leaf with external force, the transmission mechanism is used for transmitting the rotation torque to the buffer mechanism, so that the door leaf is closed with buffer. SUMMARY

[0003] The utility model discloses a buffer hinge which can be disassembled and has less transmission components.

[0004] The buffer hinge which can be disassembled comprises an upper leaf, a lower leaf, a damper, a transmission shaft, a lower sleeve pipe and an upper sleeve pipe which are arranged along the same axis, the upper leaf is sleeved and fixed to the upper sleeve pipe, the lower leaf is sleeved and fixed to the lower sleeve pipe, the transmission shaft and a spring are arranged in the lower sleeve pipe, one end of the spring is abutted to one end of the lower sleeve pipe, the other end of the spring is abutted to one end of the transmission shaft, the damper is arranged in the upper sleeve pipe, the other end of the transmission shaft is abutted to the damper, one end of the upper sleeve pipe is provided with a helical groove, the other end of the transmission shaft is provided with a transmission pin, the transmission pin is installed in the helical groove, the transmission shaft can be driven to move axially by the helical groove along the transmission pin, and the upper sleeve pipe can be driven to rotate by the transmission pin along the helical groove.

[0005] One end of the upper sleeve pipe extends an axle head, the axle head is inserted into the lower sleeve pipe, a through hole communicated with the upper sleeve pipe is arranged in the axle head, and the power shaft of the damper passes through the through hole and is abutted to the other end of the transmission shaft.

[0006] The outer edge of the axle head is provided with a helical groove.

[0007] The helical groove is composed of two symmetrical helical half grooves, the helical half grooves pass through the through hole along the radial direction and the axial direction, and the transmission pin extends from the two sides of the transmission shaft and is inserted into the two helical half grooves respectively.

[0008] The inner wall of the lower sleeve pipe is provided with a through hole, one end of the transmission shaft is provided with a sliding block, and the sliding block is slidingly installed in the through hole.

[0009] The other end of the spring is abutted to the through hole through the blocking sheet with the positioning shaft.

[0010] The lower leaf and the upper leaf are sleeved to the lower sleeve and the upper sleeve through rotating parts, and the rotating parts are fixed to the lower sleeve and the upper sleeve through key connections.

[0011] The junctions of the rotating parts of the lower leaf and the upper leaf axially abut through plane bearings.

[0012] The beneficial effects of the utility model are that the helical groove is arranged at a position extending out of the end face of the upper sleeve, so that the helical groove and the upper sleeve form an integral whole, which, compared with the prior art of arranging a transmission sleeve with a helical groove and arranging a helical groove on the upper sleeve, simplifies the transmission structure of the prior art and improves transmission efficiency; the helical groove and the transmission pin on the transmission shaft are installed to realize quick installation of the upper sleeve and the lower sleeve, and the upper sleeve and the lower sleeve are also more convenient to disassemble, so that installation efficiency and maintenance efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a perspective view of the detachable buffer hinge.

[0014] Figure 2 It is an exploded view. Figure 1 DETAILED DESCRIPTION

[0015] The utility model will be further explained in detail in combination with the drawings.

[0016] As shown in Figure 1 , 2 The detachable buffer hinge comprises an upper leaf 1, a lower leaf 2, a damper 3, a transmission shaft 4, a lower sleeve 5 and an upper sleeve 6, and the lower sleeve 5 and the upper sleeve 6 are on the same axis. The upper leaf 1 is sleeved to the upper sleeve 6 through a rotating part 14, the rotating part 14 is fixed to the upper sleeve 6 through a key connection 15, the lower leaf 2 is sleeved to the lower sleeve 5 through a rotating part 14, and the rotating part 14 is fixed to the lower sleeve 5 through a key connection 15. The junctions of the rotating parts 14 of the lower leaf 2 and the upper leaf 1 axially abut through plane bearings 16.

[0017] The transmission shaft 4 and a spring 7 are arranged in the lower sleeve 5, the inner wall of the lower sleeve 5 is provided with a through hole, the lower end of the transmission shaft 4 is provided with a sliding block 12, and the sliding block 12 is slidingly installed in the through hole. The lower end of the spring 7 abuts against the end cover of the lower sleeve 5, the upper end of the spring 7 abuts against the through hole through a baffle 13, and a positioning shaft 13a is inserted into the spring 7 to position. When the sliding block 12 on the transmission shaft 4 slides along the through hole and passes through the through hole, the sliding block 12 abuts against the baffle 13.

[0018] ​The damping device 3 is arranged in the upper sleeve 6, the lower end of the upper sleeve 6 extends a shaft head 10 from the end face, the outer edge of the shaft head 10 is provided with a helical groove 8, the shaft head 10 is inserted into the lower sleeve 5, the shaft head 10 is provided with a through hole 11 which is communicated with the upper sleeve 6, the power shaft 3a of the damping device 3 passes through the through hole 11 and abuts against the upper end of the transmission shaft 4. The helical groove 8 is composed of two symmetrical helical half grooves 8a, the helical half grooves 8a pass through the through hole 11 along the radial and axial directions, the transmission pin 9 extends from the two sides of the transmission shaft 4 and is respectively inserted into the two helical half grooves 8a.

[0019] The following is the action process of the detachable 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 rotation of the upper sleeve 6 drives the helical groove 8 to rotate, the helical groove 8 drives the transmission shaft 4 to move downward along the transmission pin 9, so that the transmission shaft 4 slides through the through hole of the lower sleeve 5 through the sliding block 12, the sliding block 12 pushes the baffle 13, and then pushes the spring 7 to compress the energy storage.

[0021] When the external force applied to the upper leaf 1 and the lower leaf 2 disappears when the door leaf is opened, the spring 7 releases the compressed energy storage to push the transmission shaft 4 to move upward, the transmission pin 9 moves along the helical groove 8 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 transmission shaft 4 abuts against the power shaft 3a of the damping device 3, and the damping force of the damping device is used to realize the buffer closing of the door leaf.

Claims

1. A detachable buffer hinge, characterized in that, The device includes an upper page (1), a lower page (2), a damper (3), a drive shaft (4), and a lower sleeve (5) and an upper sleeve (6) arranged along the same axis. The upper page (1) is sleeved and fixed to the upper sleeve (6), and the lower page (2) is sleeved and fixed to the lower sleeve (5). The lower sleeve (5) contains the drive shaft (4) and a spring (7). One end of the spring (7) abuts against one end of the lower sleeve (5), and the other end of the spring (7) abuts against one end of the drive shaft (4). The upper sleeve (6) has a built-in damper (3), and the other end of the drive shaft (4) abuts against the damper (3). One end of the upper sleeve (6) is provided with a spiral groove (8), and the other end of the drive shaft (4) is provided with a drive pin (9). The drive pin (9) is installed in the spiral groove (8). The drive shaft (4) can be driven to move axially by moving along the drive pin (9) through the spiral groove (8), and the upper sleeve (6) can be driven to rotate by moving along the spiral groove (8).

2. The detachable buffer hinge according to claim 1, characterized in that, One end of the upper sleeve (6) extends to a shaft head (10), which is inserted into the lower sleeve (5). The shaft head (10) has a through hole (11) communicating with the upper sleeve (6). The power shaft (3a) of the damper (3) passes through the through hole (11) and abuts against the other end of the transmission shaft (4).

3. The detachable buffer hinge according to claim 2, characterized in that, The outer edge of the shaft head (10) is provided with a spiral groove (8).

4. The detachable buffer hinge according to claim 3, characterized in that, The spiral groove (8) is composed of two symmetrical spiral half-grooves (8a). The spiral half-grooves (8a) penetrate the through hole (11) radially and axially. The transmission pin (9) extends from both sides of the transmission shaft (4) and is respectively inserted into the two spiral half-grooves (8a).

5. The detachable buffer hinge according to claim 1, characterized in that, The inner wall of the lower sleeve (5) is provided with a through hole, and one end of the drive shaft (4) is provided with a slider (12), which is slidably installed in the through hole.

6. The removable buffer hinge according to claim 5, characterized in that, The other end of the spring (7) abuts against the through hole via a baffle (13) with a positioning shaft (13a).

7. The detachable buffer hinge according to claim 1, characterized in that, The lower page (2) and the upper page (1) are respectively sleeved on the lower sleeve (5) and the upper sleeve (6) through the rotating part (14). The rotating part (14) is fixed to the lower sleeve (5) and the upper sleeve (6) through the key connection (15).

8. The removable buffer hinge according to claim 7, characterized in that, The joint of the rotating part (14) of the lower page (2) and the upper page (1) is axially abutted by a plane bearing (16).

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