CN216076776U - Furniture damper - Google Patents
Furniture damper Download PDFInfo
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- CN216076776U CN216076776U CN202021995429.6U CN202021995429U CN216076776U CN 216076776 U CN216076776 U CN 216076776U CN 202021995429 U CN202021995429 U CN 202021995429U CN 216076776 U CN216076776 U CN 216076776U
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Abstract
A furniture damper comprises a piston rod and a cylinder body, wherein damping oil is placed in the cylinder body, a piston is arranged in the cylinder body in a sliding mode, one end of the piston rod extends out of the cylinder body, the other end of the piston rod is connected with the piston in a matched mode and is arranged on the cylinder body in a telescopic mode through the piston in a sliding mode, an annular oil passing groove is formed in the piston, an axial oil passing groove is formed between the piston rod and the annular oil passing groove, one end of the annular oil passing groove is communicated with the axial oil passing groove, and an oil passing port is formed in the other end of the annular oil passing groove; an annular soft piece and a reset oil passing groove are further arranged between the piston and the cylinder body, and the annular soft piece is movably arranged between the piston and the cylinder body and is opened or sealed on the reset oil passing groove during movement; the oil passing direction of the oil passing port is basically consistent with the oil passing direction of the axial oil passing groove and/or the oil passing direction of the reset oil passing groove. Through the improvement of the structure, the utility model has the characteristics of simple and reasonable structure, excellent performance, convenient use, low manufacturing cost, easy production, easy realization, long service life, good damping effect, good sealing performance and the like, and has strong practicability.
Description
Technical Field
The utility model relates to a furniture damper.
Background
Chinese patent document No. CN102287103A discloses a furniture hinge structure in 2011, 12/21, which includes a hinge cup seat disposed on a furniture door body, a base connected with a furniture main body, and a damper thereof, wherein a bottom plate of the base is provided with a damper, a connecting wing corresponding to the damper is disposed on the bottom plate, the damper is disposed on the connecting wing, a positioning portion is disposed on the connecting wing, the damper is provided with a sleeve in sliding fit therewith, the sleeve is provided with a positioning matching portion corresponding to the positioning portion, or the damper is provided with a positioning matching portion corresponding to the positioning portion. The connecting wing is added on the base of the structure and is connected with the damper or the sleeve thereof through the connecting wing, so that external force generated when the door is closed directly acts on the bottom plate and the furniture main body through the damper, the force is uniform, firm and durable, the connecting wing and the bottom plate on the base are riveted, fastened, fixed, welded and integrally formed, the manufacturing process can be effectively simplified, and the production cost of a product is reduced. However, the damper with the structure is complex in structure and high in material consumption, so that the production cost is high, meanwhile, the damper generates damping force during working or the flow of damping oil inside the damper is unchanged when the damper resets, the use effects of high opening speed and low closing speed of the furniture hinge cannot be realized, and the use experience of a user is influenced. Therefore, further improvements are necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a furniture damper to overcome the defects of complex structure, high production cost and poor damping effect of the damper in the prior art.
According to a furniture attenuator of this purpose design, including piston rod and the inside cylinder body of placing damping oil, the slip is provided with the piston in the cylinder body, outside piston rod one end stretched out the cylinder body, the other end was connected with the piston cooperation, just slided through the piston and stretches out and draws back on the cylinder body its characterized in that: an annular oil passing groove is formed in the piston, an axial oil passing groove is formed between the piston and the piston rod, one end of the annular oil passing groove is communicated with the axial oil passing groove, and an oil passing port is formed in the other end of the annular oil passing groove; an annular soft piece and a reset oil passing groove are further arranged between the piston and the cylinder body, and the annular soft piece is movably arranged between the piston and the cylinder body and is opened or sealed on the reset oil passing groove during movement; the oil passing direction of the oil passing port is basically consistent with the oil passing direction of the axial oil passing groove and/or the oil passing direction of the reset oil passing groove.
A concave part is arranged on one side surface of the piston, and a shielding piece is arranged on the concave part; the annular oil passing groove is spirally arranged on the concave part, and one end of the annular oil passing groove is communicated with the axial oil passing groove; the shielding piece is annular and at least covers the annular oil passing groove; the oil passing port is located on the outer side of the diameter of the shielding piece and communicated with the other end of the annular oil passing groove.
The oil passing amount of the oil passing port is larger than that of the annular oil passing groove.
The side wall of the concave part is provided with an annular step, and the annular step is provided with a notch; the shielding piece is pre-positioned on the concave part and covers the annular oil passing groove and the axial oil passing groove, the periphery of the shielding piece is mutually dependent on or in clearance fit with the annular step, and an oil passing opening is formed between the periphery of the shielding piece and the notch.
The middle part of the piston is provided with an axial gap; the piston rod is provided with an insertion part; the shielding piece is provided with a connecting hole; the piston rod is sequentially inserted in the connecting hole and the axial gap through the insertion part; the axial oil passing groove is formed between the axial gap and the inserting part.
And a piston step part is arranged on the piston rod, one end of the piston rod extends out of the cylinder body, and the other end of the piston rod acts on the shielding piece through the piston step part when sliding towards the direction of the cylinder body at least and drives the shielding piece to cling to the annular oil passing groove and the axial oil passing groove.
A plurality of notches are formed in the periphery of the piston; the reset oil passing groove is formed between the plurality of notches and the inner wall of the cylinder body; the other side of the piston is provided with a positioning part, an oil passing part is arranged on the positioning part or between the positioning part and the inner wall of the cylinder body, a movable groove is arranged between the positioning part and the piston, and the annular soft piece is movably arranged on the movable groove.
When the piston rod slides towards the cylinder body, the annular soft piece moves on the movable groove and is sealed on the reset oil groove when moving, and the damping oil flows to the other side of the piston from one side of the piston sequentially through the axial oil groove, the annular oil groove and the oil through hole to realize the buffer damping of the damper.
When the piston rod slides towards the cylinder body in the opposite direction, the annular flexible piece moves on the movable groove and opens the reset oil passing groove when moving, damping oil flows to one side of the piston from the other side of the piston sequentially through the oil port, the annular oil passing groove, the axial oil passing groove, the reset oil passing groove, the movable groove and the oil passing part, and therefore the damper is reset quickly.
One end of the cylinder body is sealed, the other end of the cylinder body is provided with an opening part, and an end cover is positioned on the opening part; a sealing elastic piece is arranged in the cylinder body, the periphery of the sealing elastic piece is sealed and acts on the inner wall of the cylinder body, and the piston rod is hermetically inserted on the sealing elastic piece; an elastic acting element is further arranged between the sealing elastic element and the end cover, and the sealing elastic element elastically acts on the end cover through the elastic acting element when the piston rod slides in a telescopic mode.
A clamping piece is fixedly arranged in the cylinder body; one side surface of the piston is provided with a shielding piece, and the other side surface of the piston is provided with a spring; one end of the piston rod extends out of the cylinder body, and the other end of the piston rod is inserted into the end cover, the sealing elastic piece, the clamping piece and the shielding piece in sequence and then is connected with the piston in a matching way; the piston elastically slides in the cylinder body through the spring.
According to the utility model, through the improvement of the structure, the annular oil passing groove is arranged on the piston, the axial oil passing groove is arranged between the piston rod and the piston, after the annular oil passing groove and the axial oil passing groove are shielded by the shielding piece, the oil passing opening is formed between the outer side of the diameter of the shielding piece and the piston, the annular soft piece and the reset oil passing groove are also arranged between the piston and the cylinder body, wherein the axial oil passing groove, the annular oil passing groove and the oil passing opening are mutually communicated, and the oil passing directions of the oil passing opening, the axial oil passing groove and the reset oil passing groove are basically consistent.
When the piston rod slides towards the cylinder body, the annular soft part is sealed on the reset oil passing groove, meanwhile, the shielding part can also be tightly attached to the annular oil passing groove and the axial oil passing groove, damping oil on one side of the piston can only flow to the other side of the piston through the axial oil passing groove, the annular oil passing groove and the oil passing opening in sequence, and the damping oil can only flow through one channel in the whole process, so that the piston rod can only slowly slide towards the cylinder body, and the slow buffering damping of the damper is realized.
The oil passing ports, the axial oil passing grooves and the oil passing direction of the reset oil passing grooves are basically consistent and are all axial oil passing, so that damping oil passing through the oil passing ports only flows axially and does not impact the side wall of the concave part of the piston, the service life of a product is prolonged, the size of the side wall of the concave part of the piston can be correspondingly thinner, and the production cost is reduced.
And the oil passing amount of the oil passing port is larger than that of the annular oil passing groove, so that the damping oil amount entering and exiting from the oil passing port can be increased, the damper can form a quantitative oil passing effect, the flowing speed and the force of the damping oil are ensured, and the collision-free damping closing effect of the furniture product is really achieved.
When the piston rod slided towards the cylinder body opposite direction, the oil groove of reseing can be opened to the soft piece of annular, the damping oil that is in the piston opposite side passes through the hydraulic fluid port in proper order, the oil groove is crossed to the annular, the oil groove is crossed to the axial, and reset the oil groove, the movable tank, cross one side of oil portion flow direction piston, whole in-process damping oil can flow at a plurality of passageways, consequently, the piston rod can be quick slides towards the cylinder body opposite direction, thereby realize the quick reset of attenuator, the speed when opening of furniture product can be than the speed when closing fast promptly, experience in order to improve user's use.
Moreover, the shielding piece can be pre-positioned on the concave part during assembly, so that the assembly efficiency and stability of the shielding piece can be improved; the end cover can be disassembled on the cylinder body, so that dust can not enter the cylinder body, the daily maintenance of a user is facilitated, and the service life of the damper is prolonged; the sealing elastic piece is arranged in the cylinder body, the peripheral sealing action of the sealing elastic piece is on the inner wall of the cylinder body, the piston rod can be inserted on the sealing elastic piece in a sealing mode, the sealing effect of the damper can be improved, meanwhile, the sealing elastic piece can act on the end cover through the elastic action of the elastic action piece when the piston rod slides and stretches out and draws back, the pressure inside and outside the cylinder body can be effectively balanced, all components inside the cylinder body are enabled to be unified in stress during working, the cylinder body is prevented from bursting, the overall bearing capacity of the damper is improved, the service life is prolonged, the damper works more stably and quietly, and the damping effect is better.
In summary, the damper has the characteristics of simple and reasonable structure, excellent performance, convenience in use, low manufacturing cost, easiness in production, easiness in implementation, long service life, good damping effect, good sealing performance and the like, and is high in practicability.
Drawings
Fig. 1 and 2 are schematic exploded structural diagrams according to an embodiment of the present invention.
Fig. 3 is a schematic view of an assembly structure according to an embodiment of the present invention.
Fig. 4 is an exploded view of the piston rod, the piston and the shielding member according to an embodiment of the present invention.
Fig. 5 is a schematic view of an assembly structure of the piston rod, the piston and the shielding member according to an embodiment of the utility model.
Fig. 6 is a schematic structural diagram of a piston according to an embodiment of the utility model.
Fig. 7 and 8 are schematic views illustrating a sliding process of the piston rod relative to the cylinder according to an embodiment of the present invention.
Detailed Description
The utility model is further described with reference to the following figures and examples.
Referring to fig. 1-8, the furniture damper comprises a piston rod 1 and a cylinder body 2 with damping oil placed inside, a piston 3 is arranged in the cylinder body 2 in a sliding manner, one end of the piston rod 1 extends out of the cylinder body 2, the other end of the piston rod 1 is connected with the piston 3 in a matching manner and is arranged on the cylinder body 2 in a sliding and stretching manner through the piston 3, an annular oil passing groove 4 is arranged on the piston 3, an axial oil passing groove 5 is arranged between the piston rod 1 and the annular oil passing groove 4, one end of the annular oil passing groove 4 is mutually communicated with the axial oil passing groove 5, and an oil passing port 6 is arranged at the other end of the annular oil passing groove 4; an annular soft piece 7 and a reset oil groove 8 are further arranged between the piston 3 and the cylinder body 2, and the annular soft piece 7 is movably arranged between the piston 3 and the cylinder body 2 and is opened or sealed on the reset oil groove 8 during movement; the oil passing direction of the oil passing port 6 is basically consistent with the oil passing direction of the axial oil passing groove 5 and/or the oil passing direction of the reset oil passing groove 8.
Specifically, one side surface of the piston 3 is provided with a concave part 9, and a shielding piece 10 is arranged on the concave part 9; the annular oil passing groove 4 is spirally arranged on the concave part 9, and one end of the annular oil passing groove is communicated with the axial oil passing groove 5; the shielding piece 10 is annular and at least covers the annular oil passing groove 4; the oil through port 6 is positioned on the outer side of the diameter of the shielding piece 10 and is communicated with the other end of the annular oil through groove 4.
The oil passing amount of the oil passing port 6 is larger than that of the annular oil passing groove 4.
The side wall of the concave part 9 is provided with an annular step 11, and the annular step 11 is provided with a notch 12; the shielding piece 10 is pre-positioned on the concave part 9 and covers the annular oil passing groove 4 and the axial oil passing groove 5, the periphery of the shielding piece 10 and the annular step 11 are mutually depended or in clearance fit, and an oil passing port 6 is formed between the shielding piece and the notch 12.
The middle part of the piston 3 is provided with an axial gap 13; the piston rod 1 is provided with an inserting part 14; the shielding piece 10 is provided with a connecting hole 15; the piston rod 1 is sequentially inserted into the connecting hole 15 and the axial gap 13 through the insertion part 14; the axial oil groove 5 is formed between the axial gap 13 and the plug part 14.
A piston step part 16 is arranged on the piston rod 1, one end of the piston rod 1 extends out of the cylinder body 2, and the other end of the piston rod 1 acts on the shielding piece 10 through the piston step part 16 when sliding towards the direction of the cylinder body 2 at least, and drives the shielding piece 10 to cling to the annular oil passing groove 4 and the axial oil passing groove 5.
A plurality of notches 17 are arranged on the periphery of the piston 3; the reset oil passing grooves 8 are formed between the plurality of notches 17 and the inner wall of the cylinder body 2; the other side surface of the piston 3 is provided with a positioning part 18, an oil passing part 19 is arranged on the positioning part 18 or between the positioning part 18 and the inner wall of the cylinder body 2, a movable groove 20 is arranged between the positioning part 18 and the piston 3, and the annular soft piece 7 is movably arranged on the movable groove 20.
As shown in fig. 7, when a force F1 is applied to the piston rod 1, and the piston rod 1 slides in the direction of the cylinder 2, the annular soft material 7 moves in the movable groove 20 and is sealed in the return oil groove 8 during movement, and damping oil flows from one side of the piston 3 to the other side of the piston 3 through the axial oil groove 5, the annular oil groove 4, and the oil through port 6 in this order, thereby achieving damping of the damper.
As shown in fig. 8, when a force F2 is applied to the piston rod 1, and the piston rod 1 slides in the opposite direction to the cylinder 2, the annular soft piece 7 moves on the movable groove 20, and opens the return oil groove 8 during movement, and the damping oil flows from the other side of the piston 3 to one side of the piston 3 through the oil port 6, the annular oil groove 4, the axial oil groove 5, the return oil groove 8, the movable groove 20, and the oil passing portion 19 in this order, so as to achieve rapid return of the damper.
Specifically, one end of the cylinder 2 is sealed, the other end is provided with an opening 21, and an end cover 22 is positioned on the opening 21; a sealing elastic piece 23 is arranged in the cylinder body 2, the periphery of the sealing elastic piece 23 acts on the inner wall of the cylinder body 2 in a sealing way, and the piston rod 1 is inserted on the sealing elastic piece 23 in a sealing way; an elastic acting element 24 is further arranged between the sealing elastic element 23 and the end cover 22, and the sealing elastic element 23 elastically acts on the end cover 22 through the elastic acting element 24 when the piston rod 1 slides in a stretching mode.
A clamping piece 25 is also fixedly arranged in the cylinder body 2; one side surface of the piston 3 is provided with a shielding piece 10, and the other side surface is provided with a spring 26; one end of the piston rod 1 extends out of the cylinder body 2, and the other end of the piston rod is inserted into the end cover 22, the sealing elastic piece 23, the clamping piece 25 and the shielding piece 10 in sequence and then is connected with the piston 3 in a matching way; the piston 3 is elastically slid inside the cylinder 2 by a spring 26.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a furniture damper, includes piston rod (1) and inside cylinder body (2) of placing damping oil, slides in cylinder body (2) and is provided with piston (3), outside piston rod (1) one end stretches out cylinder body (2), the other end was connected with piston (3) cooperation, and slides through piston (3) and stretch out and draw back on cylinder body (2), its characterized in that: an annular oil passing groove (4) is formed in the piston (3), an axial oil passing groove (5) is formed between the piston and the piston rod (1), one end of the annular oil passing groove (4) is communicated with the axial oil passing groove (5), and an oil passing port (6) is formed in the other end of the annular oil passing groove; an annular soft piece (7) and a reset oil passing groove (8) are further arranged between the piston (3) and the cylinder body (2), and the annular soft piece (7) is movably arranged between the piston (3) and the cylinder body (2) and is opened or sealed on the reset oil passing groove (8) during movement; the oil passing direction of the oil passing port (6) is basically consistent with the oil passing direction of the axial oil passing groove (5) and/or the oil passing direction of the reset oil passing groove (8);
a concave part (9) is arranged on one side surface of the piston (3), and a shielding piece (10) is arranged on the concave part (9); the annular oil passing groove (4) is spirally arranged on the concave part (9), and one end of the annular oil passing groove is communicated with the axial oil passing groove (5); the shielding piece (10) is annular, is pre-positioned on the concave part (9), and covers the annular oil passing groove (4) and the axial oil passing groove (5); the oil passing port (6) is positioned on the diameter outer side of the shielding piece (10) and is communicated with the other end of the annular oil passing groove (4);
the oil passing amount of the oil passing port (6) is greater than that of the annular oil passing groove (4);
an annular step (11) is arranged on the side wall of the concave part (9), and a notch (12) is arranged on the annular step (11); the periphery of the shielding piece (10) is mutually depended on or in clearance fit with the annular step (11), and an oil passing port (6) is formed between the shielding piece and the notch (12);
an axial gap (13) is formed in the middle of the piston (3); the piston rod (1) is provided with an inserting part (14); a connecting hole (15) is formed in the shielding piece (10); the piston rod (1) is sequentially inserted into the connecting hole (15) and the axial gap (13) through the insertion part (14); the axial oil passing groove (5) is formed between the axial gap (13) and the insertion part (14);
a piston step part (16) is arranged on the piston rod (1), one end of the piston rod (1) extends out of the cylinder body (2), and the other end of the piston rod (1) acts on the shielding piece (10) through the piston step part (16) when sliding towards the direction of the cylinder body (2) at least, and drives the shielding piece (10) to cling to the annular oil passing groove (4) and the axial oil passing groove (5);
one end of the cylinder body (2) is sealed, the other end of the cylinder body is provided with an opening part (21), and an end cover (22) is positioned on the opening part (21); a sealing elastic piece (23) is arranged in the cylinder body (2), the periphery of the sealing elastic piece (23) acts on the inner wall of the cylinder body (2) in a sealing way, and the piston rod (1) is inserted on the sealing elastic piece (23) in a sealing way; an elastic acting piece (24) is further arranged between the sealing elastic piece (23) and the end cover (22), and the sealing elastic piece (23) elastically acts on the end cover (22) through the elastic acting piece (24) when the piston rod (1) slides in a stretching mode.
2. The furniture damper of claim 1, wherein: a plurality of notches (17) are formed in the periphery of the piston (3); the reset oil passing grooves (8) are formed between the plurality of notches (17) and the inner wall of the cylinder body (2); the other side surface of the piston (3) is provided with a positioning part (18), an oil passing part (19) is arranged on the positioning part (18) or between the positioning part (18) and the inner wall of the cylinder body (2), a movable groove (20) is arranged between the positioning part (18) and the piston (3), and the annular soft piece (7) is movably arranged on the movable groove (20).
3. The furniture damper of claim 2, wherein: when the piston rod (1) slides towards the cylinder body (2), the annular soft piece (7) moves on the movable groove (20) and is sealed on the reset oil passing groove (8) during movement, and damping oil flows to the other side of the piston (3) from one side of the piston (3) through the axial oil passing groove (5), the annular oil passing groove (4) and the oil passing port (6) in sequence to realize buffer damping of the damper;
when piston rod (1) slided towards cylinder body (2) opposite direction, annular soft spare (7) move about on activity groove (20), and open when moving and reset and cross oil groove (8), damping oil from the opposite side of piston (3) in proper order through hydraulic fluid port (6), oil groove (4) are crossed to the annular, the oil groove (5) is crossed to the axial to and reset and cross oil groove (8), activity groove (20), cross one side that oil portion (19) flowed to piston (3) to realize the quick reset of attenuator.
4. The furniture damper according to any of claims 1-3, wherein: a clamping piece (25) is also fixedly arranged in the cylinder body (2); one side surface of the piston (3) is provided with a shielding piece (10), and the other side surface is provided with a spring (26); one end of the piston rod (1) extends out of the cylinder body (2), and the other end of the piston rod is inserted into the end cover (22), the sealing elastic piece (23), the clamping piece (25) and the shielding piece (10) in sequence and then is connected with the piston (3) in a matching way; the piston (3) slides elastically in the cylinder (2) through a spring (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021995429.6U CN216076776U (en) | 2020-09-11 | 2020-09-11 | Furniture damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021995429.6U CN216076776U (en) | 2020-09-11 | 2020-09-11 | Furniture damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216076776U true CN216076776U (en) | 2022-03-18 |
Family
ID=80633760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021995429.6U Active CN216076776U (en) | 2020-09-11 | 2020-09-11 | Furniture damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216076776U (en) |
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2020
- 2020-09-11 CN CN202021995429.6U patent/CN216076776U/en active Active
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