CN220815305U - Door hinge and buffer device for door hinge - Google Patents
Door hinge and buffer device for door hinge Download PDFInfo
- Publication number
- CN220815305U CN220815305U CN202322544500.9U CN202322544500U CN220815305U CN 220815305 U CN220815305 U CN 220815305U CN 202322544500 U CN202322544500 U CN 202322544500U CN 220815305 U CN220815305 U CN 220815305U
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- oil cylinder
- piece
- rotating shaft
- hinge
- door hinge
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- 238000000034 method Methods 0.000 abstract description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 241000914012 Lutjanus gibbus Species 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to a door hinge and a buffer device for the door hinge, comprising a hinge body and a buffer unit, wherein the hinge body comprises a hinge seat, a U-shaped rotating shaft, a connecting piece, a first rotating shaft and a shell; the U-shaped rotating shaft comprises a first connecting shaft and a second connecting shaft, one end of the connecting piece is rotatably connected with the hinge seat through the first connecting shaft of the U-shaped rotating shaft, and the other end of the connecting piece is rotatably arranged in the shell through the first rotating shaft; the buffer unit connects the linkage piece with the oil cylinder by adding a plectrum, so that the linkage piece can drive the plectrum to move close to or away from the plane of the hinge seat through rotation, the plane movement of the plectrum can drive the oil cylinder to compress or reset, and the mechanical force in the door hinge opening and closing process is skillfully utilized to help the oil cylinder to reset, so that the loss of the oil cylinder is reduced. The utility model has the advantages of reducing the loss of the door hinge oil cylinder and prolonging the service life of the oil cylinder.
Description
Technical Field
The utility model relates to the field of household, in particular to a door hinge and a buffer device for the door hinge.
Background
The door hinge is a device which enables the door to be opened and closed in a rotating mode, an oil cylinder with a buffering effect is added on the door hinge, the impact force received by the door hinge in the door opening and closing process can be reduced by the oil cylinder, the closing speed of the door can be controlled, risks of clamping injury and accidental injury are reduced, and violent collision sound and damage can be avoided. The cylinder of the prior art door hinge is easily damaged during use. When the oil cylinder is damaged, the door hinge also loses the buffering effect, so that the safety performance of the door hinge is deteriorated. Therefore, a door hinge capable of prolonging the service life of the oil cylinder and guaranteeing the safety performance is needed.
Disclosure of utility model
Accordingly, the present utility model is directed to a door hinge capable of reducing the loss of an oil cylinder in the door hinge and prolonging the service life of the oil cylinder.
The utility model is realized by the following detailed technical scheme:
The door hinge comprises a hinge body and a buffer unit, wherein the hinge body comprises a hinge seat, a U-shaped rotating shaft, a connecting piece, a first rotating shaft and a shell; the U-shaped rotating shaft comprises a first connecting shaft and a second connecting shaft, one end of the connecting piece is rotatably connected with the hinge seat through the first connecting shaft of the U-shaped rotating shaft, and the other end of the connecting piece is rotatably arranged in the shell through the first rotating shaft;
The buffer unit comprises a linkage piece, a torsion spring, an oil cylinder sleeve, a second rotating shaft, a poking piece and an oil cylinder; one end of the linkage piece is rotationally connected with the hinge seat through a second connecting shaft of the U-shaped rotating shaft, and the other end of the linkage piece is rotationally arranged in the shell through the second rotating shaft; the torsion spring is sleeved on the first rotating shaft and attached to the linkage piece, the oil cylinder sleeve is fixed in the shell, one end of the torsion spring is abutted against the oil cylinder sleeve, and the other end of the torsion spring is abutted against the inner wall of the connecting piece; the shifting sheet is arranged on the oil cylinder sleeve and driven by the linkage piece to perform plane movement close to or far away from the hinge seat; the oil cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly arranged in the oil cylinder sleeve, and the piston rod and the poking piece are always kept in contact.
Compared with the prior art, the utility model connects the linkage piece with the oil cylinder by adding the poking piece, so that the linkage piece can rotate clockwise or anticlockwise in the opening and closing process of the door hinge, the linkage piece can drive the poking piece to move in the front-back plane when rotating, the poking piece can drive the piston rod of the oil cylinder to compress or reset in the front-back plane, the mechanical force in the opening and closing process of the door hinge is skillfully utilized to help the oil cylinder to reset, and the spring in the oil cylinder is not required to continuously play a role when the oil cylinder is reset. Besides, the torsion spring is fixed on the linkage piece and the oil cylinder sleeve, so that the torsion spring is prevented from contacting the oil cylinder, the elastic force of the torsion spring is prevented from continuously influencing the internal spring of the oil cylinder, the damage of the internal spring is reduced from two aspects, and the service life of the oil cylinder is prolonged.
Further, the plectrum includes plectrum front end and plectrum rear end, the plectrum front end is equipped with a recess, the interlock spare with the one end that the second pivot is connected is equipped with a bump, the bump card is established in the recess, the plectrum rear end is equipped with an terminal surface, the terminal surface with the piston rod butt of hydro-cylinder. The design of the convex points and the grooves not only can enable the connection of the linkage piece and the poking piece to be more compact, but also is convenient to install and detach. The end face is propped against the piston rod, so that compression and resetting of the piston rod can be realized through movement of the end face, other parts are not required to act on the oil cylinder, and the end face is simple in structure and convenient to process.
Further, the tail end of the shifting piece is also provided with a limiting structure capable of fixing the cylinder body. The limiting structure can prevent the oil cylinder from shaking, so that the oil cylinder is kept fixed.
Further, an oil cylinder placement position and a plectrum movement track are arranged in the oil cylinder sleeve, the oil cylinder is arranged at the oil cylinder placement position, and the plectrum is arranged in the plectrum movement track. The oil cylinder square gauge not only is convenient for the installation of the oil cylinder, but also can be matched with a limiting structure on the shifting sheet to keep the oil cylinder fixed all the time. The shifting piece movement track can limit the movement track of the shifting piece, so that the movement track of the shifting piece is consistent with the compression and resetting route of the oil cylinder, and the mechanical force generated when the rotating piece rotates is reasonably utilized.
Further, the cylinder sleeve is further provided with two spring avoidance grooves and a movable limiting part of a linkage part, the torsion spring comprises a spring center and torsion arms arranged at two ends of the spring center, the spring center and one torsion arm are respectively arranged in the two spring avoidance grooves, and the other torsion arm is propped against the inner wall of the linkage part. The spring avoiding potential can limit the torsion spring to be always fixed on the oil cylinder sleeve, so that the torsion spring is always not contacted with the oil cylinder, and the spring force is prevented from acting on the oil cylinder all the time.
The utility model also provides a buffer device for the door hinge, which comprises a hinge seat, wherein the buffer device comprises a linkage piece, an oil cylinder sleeve, a poking piece and an oil cylinder; one end of the linkage piece is rotatably arranged in the oil cylinder sleeve, and the other end of the linkage piece is rotatably connected with the hinge seat; the shifting piece is arranged on the oil cylinder sleeve, and is driven by the linkage piece to perform plane movement close to or far away from the hinge seat; the oil cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly arranged in the oil cylinder sleeve, and the piston rod and the poking piece are always kept in contact.
Compared with the prior art, the buffer device can be installed in the existing door hinge, and the buffer device can be fixed on the linkage piece and the cylinder sleeve of the buffer device by adjusting the structure of the torsion spring in the existing door hinge, and the mechanical force in the opening and closing process of the door hinge is skillfully utilized to help the oil cylinder to reset, so that the loss of the oil cylinder is reduced, and the purpose of prolonging the service life of the oil cylinder is realized.
Further, the plectrum includes plectrum front end and plectrum rear end, the plectrum front end is equipped with a recess, the interlock spare with the one end that the cylinder liner is connected is equipped with a bump, the bump card is established in the recess, the plectrum rear end is equipped with an terminal surface, the terminal surface with the piston rod butt of hydro-cylinder. The design of the convex points and the grooves not only can enable the connection of the linkage piece and the poking piece to be more compact, but also is convenient to install and detach. The end face is propped against the piston rod, so that compression and resetting of the piston rod can be realized through movement of the end face, other parts are not required to act on the oil cylinder, and the end face is simple in structure and convenient to process.
Further, the tail end of the poking piece is also provided with a limiting surface capable of fixing the cylinder body. The limiting structure can prevent the oil cylinder from shaking, so that the oil cylinder is kept fixed.
Further, an oil cylinder placement position and a plectrum movement track are arranged in the oil cylinder sleeve, the oil cylinder is arranged at the oil cylinder placement position, and the plectrum is arranged in the plectrum movement track. The oil cylinder placing position can be used for not only facilitating the installation of the oil cylinder, but also being matched with a limiting structure on the shifting sheet to enable the oil cylinder to be always fixed. The shifting piece movement track can limit the movement track of the shifting piece, so that the movement track of the shifting piece is consistent with the compression and resetting route of the oil cylinder, and the mechanical force generated when the rotating piece rotates is reasonably utilized.
Further, the cylinder sleeve is also provided with a movable limit part of the linkage piece. The spring avoiding potential can limit the torsion spring to be always fixed on the oil cylinder sleeve, so that the torsion spring is always not contacted with the oil cylinder, spring force is prevented from acting on the oil cylinder all the time, and the linkage piece is limited by the movable limit and can only rotate and cannot shake.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is an exploded view of a door hinge of the present utility model;
FIG. 2 is a schematic perspective view of the door hinge of FIG. 1;
FIG. 3 is a cross-sectional view A-A of the door hinge of FIG. 1;
FIG. 4 is a schematic structural view of a cylinder liner of the door hinge of FIG. 1;
FIG. 5 is a schematic view of the cylinder of the door hinge of FIG. 1;
FIG. 6 is a schematic view of the hinge plate of the door of FIG. 1;
FIG. 7 is a schematic structural view of the linkage of the door hinge of FIG. 1;
FIG. 8 is another structural schematic diagram of the cylinder liner of the door hinge of FIG. 1;
Wherein: 1: hinge body, 11: hinge base, 12: u-shaped rotating shaft, 13: connector, 14: first pivot, 15: a housing, 2: buffer unit, 21: linkage, 211: bump, 22: torsion spring, 23: cylinder liner, 231: hydro-cylinder placement bit, 232: plectrum motion track, 233: spring clearance groove, 234: movable limit part of linkage piece, 24: second spindle, 25: third spindle, 26: plectrum, 261: plectrum front end, 2611: recess, 262: rear end of plectrum, 2621: end face, 2622: limit structure, 27: hydro-cylinder, 271: cylinder, 272: a piston rod.
Detailed Description
The applicant researches the buffer device of the existing door hinge, and discovers that the oil cylinder in the existing buffer device needs to realize the buffer function by virtue of the compression and the reset of the oil cylinder, and the compression and the reset of the oil cylinder depend on the spring in the oil cylinder, so that the spring in the buffer function must be continuously compressed and continuously reset, and the spring can be in a working state for a long time, so that the service life of the spring is shortened, and the service life of the oil cylinder is further influenced. Therefore, the door hinge can help the oil cylinder to reset through mechanical action, reduce the pressure of the spring in the oil cylinder and further prolong the service life of the oil cylinder.
Referring to fig. 1 to 3, the door hinge of the present utility model includes a hinge body 1 and a buffer unit 2, wherein the hinge body 1 includes a hinge base 11, a U-shaped rotating shaft 12, a connecting member 13, a first rotating shaft 14 and a housing 15; the U-shaped rotating shaft comprises a first connecting shaft and a second connecting shaft, one end of the connecting piece 13 is rotatably connected with the hinge seat 11 through the first connecting shaft of the U-shaped rotating shaft 12, and the other end of the connecting piece 13 is rotatably arranged in the shell 15 through the first rotating shaft 14;
The buffer unit 2 comprises a linkage piece 21, a torsion spring 22, an oil cylinder sleeve 23, a second rotating shaft 24, a third rotating shaft 25, a poking piece 26 and an oil cylinder 27; one end of the linkage member 21 is rotatably connected with the hinge base 11 through a second connecting shaft of the U-shaped rotating shaft 12, and the other end of the linkage member 21 is rotatably arranged in the cylinder sleeve 23 through the second rotating shaft 24. The torsion spring 22 is sleeved on the first rotating shaft 14 and is attached to the linkage piece 21, one end of the torsion spring 22 abuts against the cylinder sleeve 23, and the other end abuts against the inner wall of the connecting piece 13. The cylinder sleeve 23 is fixed in the housing 15 by the second rotating shaft 24 and the third rotating shaft 25. Referring to fig. 4, the cylinder sleeve 23 is provided with a cylinder placement position 231 and a shifting block movement track 232. The pulling piece 26 is installed in the pulling piece moving track 232 to limit, and the pulling piece 26 is driven by the linkage piece 21 to move in a plane which is close to or far away from the hinge seat 11 in the pulling piece moving track 232. Referring to fig. 5, the cylinder 27 includes a cylinder body 271 and a piston rod 272, wherein the cylinder body 271 is fixedly disposed in the cylinder placement position 231 of the cylinder liner 23, and the piston rod 272 and the paddle 26 are always kept in contact.
Referring to fig. 6, in one embodiment, the paddle 26 includes a paddle front end 261 and a paddle rear end 262, the paddle front end is provided with a groove 2611, referring to fig. 7, one end of the linking member 21 connected to the second rotating shaft 24 is provided with a protruding point 211, and the protruding point 211 is clamped in the groove 2611. The rear end 262 of the pulling piece is provided with an end face 2621, and the end face 2621 is always in contact with the piston rod 272 of the oil cylinder 27.
In one embodiment, the paddle tail 262 is further provided with a limiting structure 2622 for limiting the movement of the oil cylinder 27, and the limiting structure 2622 can ensure that the oil cylinder 27 is fixed in the paddle tail 262 to prevent the oil cylinder 27 from shaking on the paddle 26.
Referring to fig. 8, in one embodiment, the torsion spring 22 includes a spring center and torsion arms disposed at two ends of the spring center, the cylinder liner 23 is further provided with two spring avoidance grooves 233 and a movable limiting portion 234 of a linkage member, the spring center and one torsion arm are respectively disposed in the two spring avoidance grooves 233, the other torsion arm abuts against the inner wall of the connecting member 13, and the torsion spring 22 does not contact the cylinder 27 during the opening and closing of the door hinge. The movable limiting part 234 of the linkage member limits the linkage member 21 to rotate around the rotation shaft, and does not shake left and right, so that the door panel does not sag, the door hinge rotation is not affected even when the door is opened by the weight, and the product is quieter and durable.
The working principle of the door hinge is as follows:
When the door hinge needs to be opened, the linkage member 21 rotates clockwise with the second rotating shaft 24 as an axis, the protruding point 211 of the linkage member 21 drives the paddle 26 to move towards the hinge seat 11 along the paddle movement track through the groove 2611, the end face 2621 of the paddle tail end 262 abuts against the piston rod 272 of the oil cylinder 27 and moves to compress the piston rod 272, and the door hinge is gradually opened, so that the process is quiet, stable and smooth.
When the door hinge needs to be closed, the linkage piece 21 rotates anticlockwise by taking the second rotating shaft 24 as an axis, the convex points 211 of the linkage piece 21 drive the poking piece 26 to be far away from the hinge seat 11 along the poking piece moving track through the grooves 2611, the poking piece 26 returns under the action of the linkage piece 21 without depending on the return force of the spring in the oil cylinder 27, so that the loss of the spring in the oil cylinder is reduced, and the service life of the oil cylinder is prolonged.
The utility model also provides a buffer device for the door hinge, which comprises the linkage piece 21, the oil cylinder sleeve 23, the poking piece 26 and the oil cylinder 27 in the embodiment; the damping device can be installed in an existing door hinge, and the torsion spring can be fixed on the linkage piece 21 and the cylinder sleeve 23 of the damping device through adjusting the torsion spring structure in the existing door hinge, the torsion spring and the damping device form a damping unit of the existing door hinge, and the damping unit can enable the existing door hinge to achieve the function of prolonging the service life of the oil cylinder of the door hinge in the embodiment.
Compared with the prior art, the utility model is characterized in that the linkage piece 21 is linked with the oil cylinder 27 by adding the poking piece, the linkage piece 21 can rotate clockwise or anticlockwise in the opening and closing process of the door hinge, the poking piece 26 can be driven to move close to or away from the plane of the hinge seat 11 when the linkage piece 21 rotates, the plane movement of the poking piece 26 can drive the piston rod 272 of the oil cylinder 27 to compress or reset, the oil cylinder 27 is helped to reset by skillfully utilizing the mechanical force in the opening and closing process of the door hinge, the internal spring of the oil cylinder 27 is not required to continuously play a role when the oil cylinder is reset, and besides, the torsion spring 22 is fixed on the linkage piece 21 and the oil cylinder sleeve 23, so that the torsion spring 22 is prevented from contacting the oil cylinder 27, the influence of the elasticity of the torsion spring 22 on the oil cylinder 27 is avoided, the loss of the internal spring of the oil cylinder 27 is reduced, and the service life of the oil cylinder 27 is prolonged.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.
Claims (10)
1. A door hinge, characterized by: the hinge comprises a hinge body and a buffer unit, wherein the hinge body comprises a hinge seat, a U-shaped rotating shaft, a connecting piece, a first rotating shaft and a shell; the U-shaped rotating shaft comprises a first connecting shaft and a second connecting shaft, one end of the connecting piece is rotatably connected with the hinge seat through the first connecting shaft of the U-shaped rotating shaft, and the other end of the connecting piece is rotatably arranged in the shell through the first rotating shaft;
The buffer unit comprises a linkage piece, a torsion spring, an oil cylinder sleeve, a second rotating shaft, a poking piece and an oil cylinder; one end of the linkage piece is rotationally connected with the hinge seat through a second connecting shaft of the U-shaped rotating shaft, and the other end of the linkage piece is rotationally arranged in the shell through the second rotating shaft; the torsion spring is sleeved on the first rotating shaft and attached to the linkage piece, the oil cylinder sleeve is fixed in the shell, one end of the torsion spring is abutted against the oil cylinder sleeve, and the other end of the torsion spring is abutted against the inner wall of the connecting piece; the shifting sheet is arranged on the oil cylinder sleeve and driven by the linkage piece to perform plane movement close to or far away from the hinge seat; the oil cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly arranged in the oil cylinder sleeve, and the piston rod and the poking piece are always kept in contact.
2. The door hinge according to claim 1, wherein: the plectrum includes plectrum front end and plectrum rear end, the plectrum front end is equipped with a recess, the interlock spare with the one end that the second pivot is connected is equipped with a bump, the bump card is established in the recess, the plectrum rear end is equipped with an terminal surface, the terminal surface with the piston rod butt of hydro-cylinder.
3. The door hinge according to claim 2, wherein: the tail end of the poking piece is also provided with a limiting structure capable of fixing the cylinder body.
4. A door hinge according to claim 3, wherein: the oil cylinder sleeve is internally provided with an oil cylinder placing position and a shifting piece moving track, the oil cylinder is arranged at the oil cylinder placing position, and the shifting piece is arranged in the shifting piece moving track.
5. The door hinge according to claim 4, wherein: the torsion spring comprises a spring center and torsion arms arranged at two ends of the spring center, the spring center and one torsion arm are respectively arranged in the two spring clearance grooves, and the other torsion arm is propped against the inner wall of the connecting piece.
6. A cushioning device for a door hinge, the door hinge comprising a hinge base, characterized in that: the buffer device comprises a linkage piece, an oil cylinder sleeve, a poking piece and an oil cylinder; one end of the linkage piece is rotatably arranged in the oil cylinder sleeve, and the other end of the linkage piece is rotatably connected with the hinge seat; the shifting piece is arranged on the oil cylinder sleeve, and is driven by the linkage piece to perform plane movement close to or far away from the hinge seat; the oil cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly arranged in the oil cylinder sleeve, and the piston rod and the poking piece are always kept in contact.
7. The cushioning device of claim 6, wherein: the plectrum includes plectrum front end and plectrum rear end, the plectrum front end is equipped with a recess, the interlock spare with the one end that the cylinder liner is connected is equipped with a bump, the bump card is established in the recess, the plectrum rear end is equipped with an terminal surface, the terminal surface with the piston rod butt of hydro-cylinder.
8. The cushioning device of claim 7, wherein: the tail end of the poking piece is also provided with a limiting structure capable of fixing the cylinder body.
9. The cushioning device of claim 8, wherein: the oil cylinder sleeve is internally provided with an oil cylinder placing position and a shifting piece moving track, the oil cylinder is arranged at the oil cylinder placing position, and the shifting piece is arranged in the shifting piece moving track.
10. The cushioning device of claim 9, wherein: the cylinder sleeve is also provided with a movable limit part of the linkage piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322544500.9U CN220815305U (en) | 2023-09-18 | 2023-09-18 | Door hinge and buffer device for door hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322544500.9U CN220815305U (en) | 2023-09-18 | 2023-09-18 | Door hinge and buffer device for door hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220815305U true CN220815305U (en) | 2024-04-19 |
Family
ID=90698894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322544500.9U Active CN220815305U (en) | 2023-09-18 | 2023-09-18 | Door hinge and buffer device for door hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220815305U (en) |
-
2023
- 2023-09-18 CN CN202322544500.9U patent/CN220815305U/en active Active
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