CN2727344Y - Blind hinge with buffer device - Google Patents
Blind hinge with buffer device Download PDFInfo
- Publication number
- CN2727344Y CN2727344Y CN 200420071301 CN200420071301U CN2727344Y CN 2727344 Y CN2727344 Y CN 2727344Y CN 200420071301 CN200420071301 CN 200420071301 CN 200420071301 U CN200420071301 U CN 200420071301U CN 2727344 Y CN2727344 Y CN 2727344Y
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- CN
- China
- Prior art keywords
- cylinder
- cushion cylinder
- mentioned
- rod guide
- openend
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000000446 fuel Substances 0.000 claims abstract description 7
- 230000003139 buffering effect Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 45
- 239000004568 cement Substances 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model provides a blind hinge with buffer, includes fixing base, sliding seat, connects the resilient means of fixing base and sliding seat and installs the cushion cylinder in the fixing base, and the tip and the sliding seat of cushion cylinder piston rod are connected, are equipped with the oil duct that the fuel feeding flows between two jar chambeies of cushion cylinder, its characterized in that the open end of cushion cylinder is equipped with dismantled and assembled sealed guide holder, and the middle part of this sealed guide holder is equipped with the through-hole that can supply the piston rod to wear to put. The utility model discloses sealed guide holder is connected conveniently with buffer cylinder, effectively guarantees the piston rod and makes a round trip to pump reliable and stable of sending, and has made things convenient for the dismouting maintenance. Meanwhile, because the sealing rings are respectively arranged between the sealing guide seat and the inner cavity wall of the opening end of the buffer oil cylinder and between the sealing guide seat and the piston rod, the sealing guide seat, the oil cylinder and the piston rod are tightly matched, and the oil leakage is effectively prevented; and because the valve capable of adjusting the oil flow is arranged on the oil duct arranged in the cylinder body of the buffer oil cylinder, the buffer opening and closing speed of the door leaf is adjusted.
Description
Technical field
The utility model relates to a kind of furniture blind hinge, specifically is the blind hinge that a kind of available buffer opens and closes the furniture door leaf.
Background technology
Existing furniture blind hinge generally is provided with elastic device and opens and closes door leaf between holder and sliding seat, but have the phenomenon of fierce collision door leaf when closing door leaf, the noise that collision produces is bigger, and at this problem, the someone has designed the hinge of available buffer keying door leaf.In prior art, a kind of buffering hinge is arranged, its structure comprise holder, sliding seat and be contained in holder and sliding seat between elastic device, it is characterized in that in holder, being equipped with the buffer that available buffer is closed door leaf.This buffer generally adopts oil cylinder or cylinder, the piston of oil cylinder or cylinder is provided with oil duct or the air flue that is communicated with two cylinder chambeies, this oil cylinder or cylinder drive moving back and forth of piston rod by sliding seat, oil duct or air flue that oil in the two cylinder chambeies or gas are provided with by piston, thus reach the purpose of buffering piston rod.The oil cylinder of this structure or the openend of cylinder are provided with by the sealing ring of internal layer and outer field hard plastic and seal the sealing device of forming.Yet the shortcoming of this oil cylinder or cylinder is that the mounting or dismounting maintenance is very inconvenient.As when installing, earlier cylinder body is enclosed little groove near the past interior pressure one of the cylindrical body of open end, make corresponding cylinder cavity wall form a circle to the projecting inward annular stop circle that moves in the sealing device of preventing, in the openend in cylinder chamber, sealing device is installed again, again cylinder body openend end face is pressed down at last and shut sealing device.When maintenance mounting or dismounting, must pry open cylinder body end face skin and seal, wait and seal again again after fixing, so dismounting makes the openend skin of cylinder body seal and is difficult to restore to the original state, even also might damage skin and seal.In addition, because of the sealing ring inner chamber is set to taper surface, and outer field hard plastic seal widths is less, and plastic cement seals easy wearing and tearing, and piston rod is flexible not smooth.
Summary of the invention
The purpose of this utility model is at above-mentioned existing problems and deficiency, provides that a kind of dismounting is easy to maintenance, the good hinge buffer of sealing guide effect.On this basis, the further purpose of the utility model provides a kind of hinge of adjustable gate fan keying speed.
The technical solution of the utility model is achieved in that a kind of blind hinge with buffer, comprise holder, sliding seat, be connected and fixed the elastic device of seat and sliding seat and be installed in the interior cushion cylinder of holder, wherein, the end of described cushion cylinder piston rod is connected with sliding seat, be provided with the oil duct that fuel feeding flows between the described cushion cylinder two cylinder chambeies, its characteristics are that the openend of described cushion cylinder is provided with removable seals rod guide, and the middle part of sealing guide holder is provided with the through hole that can supply piston rod to place.
Tight in order to guarantee that guide holder and buffering oil cylinder and piston rod cooperate, effectively prevent in the cushion cylinder oil seepage outward, be respectively equipped with sealing ring between the wall of the inner chamber chamber of above-mentioned seals rod guide and cushion cylinder openend and between the through hole of piston rod and seals rod guide.
The position of above-mentioned sealing ring is provided with multiple mode, in order effectively to improve sealing effectiveness, on the outer circle wall of cushion cylinder inner chamber chamber wall contact, be provided with annular groove at least in above-mentioned seals rod guide, also be provided with at least one annular groove on the described seals rod guide through hole hole wall, above-mentioned sealing ring is contained in this respectively and states in the annular groove.
The setting of seals rod guide structure can have multiple mode, can be to be provided with internal thread on the wall of the inner chamber chamber of above-mentioned cushion cylinder openend, and above-mentioned seals rod guide outer circle wall is provided with the external screw thread with the internal thread bolt of cushion cylinder openend.Also can be above-mentioned seals rod guide front end for can be placed in the cushion cylinder openend inner chamber and and the friction tight cylindrical body of buffering cylinder cavity chamber wall, the end face of the openend of above-mentioned cushion cylinder is provided with screw, described seals rod guide rear end is provided with conjuncted flange, and this flange is provided with the corresponding through hole of screw that the end face with the openend of cushion cylinder is provided with, described seals rod guide by passing the through hole on the conjuncted flange in its rear end screw and the screw on the cushion cylinder openend end face is spirally connected and cushion cylinder is connected as a single entity.When planting structure before adopting, in order to improve the sealing effectiveness that conjuncted flange cooperates with cushion cylinder, the end face of above-mentioned cushion cylinder openend is provided with the step surface of depression, but above-mentioned seals rod guide rear end is provided with the flange of overhead on step surface; Be arranged with on the end face of the described flange of the rotatory sealing guide holder outside for convenience and can block the bayonet socket position of revolving seals rod guide.
The setting of the oil duct that is connected with the left and right cylinder of cushion cylinder chamber can have various ways, can be provided in a side of on the oil cylinder piston, also can be provided in a side of in the cylinder block wall.Regulate the keying speed of oily flow for convenience with the control hinge, can be arranged on oil duct in the cylinder block wall, but and be respectively equipped with the import and export that are communicated with the fuel feeding circulation with two cylinder chambeies at the oil duct two ends, described oil duct is provided with intersection near the import and export in inner casing chamber can control the oil duct cross-sectional sizes to regulate the valve of oily flow.Above-mentioned valve comprises valve opening and is installed on spool in the valve opening, is provided with internal thread in the described valve opening, described spool be provided with the external screw thread that the internal thread with valve opening is meshed, and this spool lower end is made as the taper surface that can control the oil duct cross-sectional sizes; Described spool upper end is provided with annular groove, and in this annular groove sealing ring is housed, and the top of spool is provided with spin slot.
In order to prevent that oil is from the cooperation place seepage of spool and valve opening in the oil duct, the spool upper end is provided with annular groove, and adorns sealing ring in this annular groove.Rotary spool is provided with spin slot at the top of spool for convenience.
The utility model is owing to adopted the openend at cushion cylinder to be provided with removable seals rod guide, and the middle part of sealing guide holder is provided with the form of structure of the through hole that can place for piston rod, make seals rod guide and cushion cylinder easy to connect, it is reliable and stable to guarantee that effectively piston rod is pumped back and forth, and has made things convenient for the dismounting maintenance.While is owing to be respectively equipped with annular groove on the inwall that outer wall reaches with piston rod cooperates of guide holder and the cooperation of buffering oil cylinder, and sealing ring is housed in annular groove, seals rod guide and oil cylinder and piston rod are cooperated closely, prevented that effectively oil is toward oil cylinder openend seepage in the cushion cylinder; On this basis, the utility model has been again owing to adopted the structure that the valve of adjustable fuel-economizing flow is set on the oil duct that is provided with in the cushion cylinder cylinder body, thereby controlled the flow of oil in the oil duct effectively, and the buffering that has reached the adjustable gate fan opens and closes the purpose of speed; Again owing to be provided with annular groove, and in annular groove, sealing ring is housed, can effectively prevents the valve leakage of oil in the upper end and the valve opening cooperation place of spool.The utility model can satisfy the hobby requirement of different user applicable to the cupboard of various different functions of use.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Structural representation when Fig. 1 closes for the utility model hinge;
Structural representation when Fig. 2 opens for the utility model hinge;
Fig. 3 is the blast structural representation of the utility model hinge;
Fig. 4 is the structure for amplifying schematic diagram of cushion cylinder A-A section among Fig. 1.
The specific embodiment
As shown in Figures 1 to 4, a kind of blind hinge of the utility model with buffer, comprise holder 1, sliding seat 2, be connected and fixed the seat 1 and the elastic device 3 of sliding seat 2 and be installed in cushion cylinder 4 in the holder 1, wherein, the end of described cushion cylinder 4 piston rods 41 is connected with sliding seat 2, be provided with the oil duct 42 that fuel feeding flows between 4 liang of cylinder chambeies of described cushion cylinder, its characteristics are that the openend of described cushion cylinder 4 is provided with removable seals rod guide 43, and the middle part of sealing guide holder 43 is provided with the mesopore that can supply piston rod 41 to place.Tight in order to guarantee that seals rod guide 43 and buffering oil cylinder 4 and piston rod 41 cooperate, effectively prevent 4 li oil of cushion cylinder seepage outward, be respectively equipped with sealing ring 5,6 between the inner chamber chamber wall of above-mentioned seals rod guide 43 and cushion cylinder 4 openends and between the through hole of piston rod 41 and seals rod guide 43.The position of above-mentioned sealing ring 5,6 is provided with multiple mode, tight in order to guarantee that seals rod guide 43 and buffering oil cylinder 4 and piston rod 41 cooperate, effectively prevent 4 li oil of cushion cylinder seepage outward, on the outer circle wall of cushion cylinder 4 internal chamber walls contact, be provided with annular groove 431 at least in above-mentioned seals rod guide 43, described seals rod guide 43 is provided with annular groove 432 at least with the internal chamber wall of piston rod 41 contacts, and above-mentioned sealing ring 5,6 is contained in respectively in annular groove 431 and the annular groove 432.As shown in Figure 4, the utility model is provided with annular groove 431 in seals rod guide 43 on the outer circle wall of cushion cylinder 4 internal chamber walls contact, be provided with annular groove 432 in seals rod guide 43 on the internal chamber wall of piston rod 41 contacts, above-mentioned sealing ring 5,6 is contained in respectively in annular groove 431 and the annular groove 432.The setting of seals rod guide 43 structures can have multiple mode, can be to be provided with internal thread on the wall of the inner chamber chamber of above-mentioned cushion cylinder 4 openends, and above-mentioned seals rod guide 43 outer circle walls are provided with the external screw thread with the internal thread bolt of cushion cylinder 4 openends.Also can be above-mentioned seals rod guide front end be set to be placed in the cushion cylinder 4 openend inner chambers and and the friction tight cylindrical body of buffering oil cylinder 4 inner chamber chamber walls, the end face of the openend of above-mentioned cushion cylinder 4 is provided with screw, described seals rod guide rear end is provided with conjuncted flange, and this flange is provided with the corresponding through hole of screw that the end face with the openend of cushion cylinder 4 is provided with, described seals rod guide 43 by passing the through hole on the conjuncted flange in its rear end screw and the screw on the cushion cylinder 4 openend end faces is spirally connected and cushion cylinder 4 is connected as a single entity.For seals rod guide 43 is connected with cushion cylinder 4 reliably, the utility model adopts the above-mentioned preceding structure of planting.When before employing is above-mentioned, planting structure, in order to improve the sealing effectiveness that conjuncted flange cooperates with cushion cylinder 4, the end face of above-mentioned cushion cylinder 4 openends is provided with the step surface 4321 of depression, but above-mentioned seals rod guide 43 rear ends are provided with the flange 432 of overhead on step surface 4321, rotatory sealing guide holder 43 is arranged with on described flange 432 outside end faces and can blocks the bayonet socket position 4322 of revolving seals rod guide 43 for convenience.The setting of the oil duct 42 that is connected with 4 liang of cylinder chambeies of cushion cylinder can have various ways, can be provided in a side of on the oil cylinder piston, also can be provided in a side of in the cylinder block wall.Regulate the keying speed of oily flow for convenience with the control hinge, above-mentioned oil duct 42 is located in the cylinder block wall, but described oil duct 42 two ends are respectively equipped with import and export 421 and the import and export 422 that are communicated with the fuel feeding circulation with two cylinder chambeies, and described oil duct 42 is provided with the intersection of importing and exporting 421 can control the valve 44 of oil duct cross-sectional sizes to regulate oily flow.Above-mentioned valve 44 comprises valve opening 441 and is installed on spool 442 in the valve opening 441, described valve opening is provided with internal thread for 441 li, described spool 442 be provided with the external screw thread that the internal thread with valve opening 441 is meshed, and these spool 442 lower ends are made as the taper surface that can control oil duct 42 cross-sectional sizes; Described spool 442 upper ends are provided with annular groove 443, and this annular groove is equipped with sealing ring 7 for 443 li, and the top of spool 442 is provided with spin slot 444.In order to prevent the cooperation place seepage of 42 li oil of oil duct from spool 442 and valve opening 441, spool 442 upper ends are provided with annular groove 443, and 443 li dresses of this annular groove sealing ring 7.Rotary spool 442 is provided with spin slot 444 at the top of spool 442 for convenience.In the utility model, turn spool 442 adjustable valve cores 442 are at the blocked area of 42 li of oil ducts, thereby can regulate the flow of 42 li oil of oil duct, finally make piston rod 41 stretching speeds adjusted, thereby realize that hinge opens and closes the purpose of adjustable-speed.As shown in Figure 3, above-mentioned elastic device 3 comprise be connected and fixed the seat 1 and the link piece 31 of sliding seat 2, be connected and fixed the shell fragment 32 of seat 1 and sliding seat 2 and cushion cylinder 4 and be contained in holder 1 and link piece 31 between torque spring 33, wherein, described link piece 31 two ends articulate with holder 1 and sliding seat 2 activities respectively, described shell fragment 32 comprises brace 321 and is located at the wind spring 322 of brace 321 1 ends, wherein, one end of described brace 321 and sliding seat 2 articulate, the other end and holder 1 articulate, and described wind spring 322 is connected with the end of cushion cylinder 4 piston rods 41.
Claims (10)
1, a kind of blind hinge with buffer, comprise holder (1), sliding seat (2), be connected and fixed the elastic device (3) of seat (1) and sliding seat (2) and be installed in the interior cushion cylinder (4) of holder (1), wherein, the end of described cushion cylinder (4) piston rod (41) is connected with sliding seat (2), be provided with the oil duct (42) that fuel feeding flows between described cushion cylinder (4) the two cylinder chambeies, the openend that it is characterized in that described cushion cylinder (4) is provided with removable seals rod guide (43), and the middle part of sealing guide holder (43) is provided with the through hole that can supply piston rod (41) to place.
2, blind hinge according to claim 1 is characterized in that being respectively equipped with sealing ring (5), (6) between the inner chamber chamber wall of above-mentioned seals rod guide (43) and cushion cylinder (4) openend and between the through hole of piston rod (41) and seals rod guide (43).
3, blind hinge according to claim 2, it is characterized in that above-mentioned seals rod guide (43) is provided with annular groove (431) at least with the outer circle wall of cushion cylinder (4) inner chamber chamber wall contact, the through hole hole wall of described seals rod guide (43) is provided with at least one annular groove (432), and above-mentioned sealing ring (5), (6) are contained in respectively in annular groove (431) and the annular groove (432).
4, blind hinge according to claim 1, the inner chamber chamber wall that it is characterized in that above-mentioned cushion cylinder (4) openend is provided with internal thread, and above-mentioned seals rod guide (43) outer circle wall is provided with the external screw thread with the internal thread bolt of cushion cylinder (4) openend.
5, blind hinge according to claim 4, it is characterized in that the end face of above-mentioned cushion cylinder (4) openend is provided with the step surface (4321) of depression, above-mentioned seals rod guide (43) but the rear end is provided with the flange (432) of overhead on step surface (4321), be arranged with on the end face of described flange (432) outside and can block the bayonet socket position (4322) of revolving seals rod guide (43).
6, according to claim 1 or 3 described blind hinges, it is characterized in that above-mentioned seals rod guide (43) front end for can be placed in cushion cylinder (4) the openend inner chamber and and the friction tight cylindrical body of buffering oil cylinder (4) inner chamber chamber wall, the end face of the openend of above-mentioned cushion cylinder (4) is provided with screw, described seals rod guide rear end is provided with conjuncted flange, and this flange is provided with the corresponding through hole of screw that the end face with the openend of cushion cylinder (4) is provided with, and described seals rod guide (43) is spirally connected with the screw on cushion cylinder (4) the openend end face by the screw that passes the through hole on the conjuncted flange in its rear end and cushion cylinder (4) is connected as a single entity.
7, blind hinge according to claim 1 is characterized in that above-mentioned oil duct (42) is located on the oil cylinder piston.
8, blind hinge according to claim 1, it is characterized in that above-mentioned oil duct (42) is located in the cylinder block wall, described oil duct (42) but two ends be respectively equipped with the import and export (421) that are communicated with the fuel feeding circulation with two cylinder chambeies and import and export (422), the intersection of described oil duct (42) and import and export (421) is provided with can control the valve (44) of oil duct (42) cross-sectional sizes to regulate oily flow.
9, blind hinge according to claim 8, it is characterized in that above-mentioned valve (44) comprises valve opening (441) and is installed on spool (442) in the valve opening (441), described valve opening (441) lining is provided with internal thread, being provided with and external screw thread that the internal thread of valve opening (441) is meshed of described spool (442), and this spool (442) lower end is made as the taper surface that can control oil duct (42) cross-sectional sizes; Described spool (442) upper end is provided with annular groove (443), and this annular groove (443) lining is equipped with sealing ring (7), and the top of spool (442) is provided with spin slot (444).
10, blind hinge according to claim 1, it is characterized in that above-mentioned elastic device (3) comprises the link piece (31) that is connected and fixed seat (1) and sliding seat (2), be connected and fixed the shell fragment (32) of seat (1) and sliding seat (2) and cushion cylinder (4) and be contained in holder (1) and link piece (31) between torque spring (33), wherein, described link piece (31) two ends articulate with holder (1) and sliding seat (2) activity respectively, described shell fragment (32) comprises brace (321) and is located at the wind spring (322) of brace (321) one ends, wherein, one end of described brace (321) and sliding seat (2) articulate, the other end and holder (1) articulate, and described wind spring (322) is connected with the end of cushion cylinder (4) piston rod (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071301 CN2727344Y (en) | 2004-07-08 | 2004-07-08 | Blind hinge with buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071301 CN2727344Y (en) | 2004-07-08 | 2004-07-08 | Blind hinge with buffer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727344Y true CN2727344Y (en) | 2005-09-21 |
Family
ID=35043361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420071301 Expired - Lifetime CN2727344Y (en) | 2004-07-08 | 2004-07-08 | Blind hinge with buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727344Y (en) |
-
2004
- 2004-07-08 CN CN 200420071301 patent/CN2727344Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140708 Granted publication date: 20050921 |