CN103485640A

CN103485640A - Rotating push damper

Info

Publication number: CN103485640A
Application number: CN201310465686.7A
Authority: CN
Inventors: 金烈水
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-08
Filing date: 2013-10-08
Publication date: 2014-01-01
Anticipated expiration: 2033-10-08
Also published as: CN103485640B

Abstract

A rotating push damper comprises a rotating shaft and a barrel body. The rotating push damper is characterized in that the rotating shaft is inserted into the barrel body; the rotating shaft is formed by a rotating push section and a key shaft section, wherein a rotating push pin is fixed on the rotating push section in the radial direction, and the rotating push section is sleeved with a piston and a valve plate from bottom to top in sequence; inner threads are arranged in a piston inner hole, and the tips of the two ends of the rotating push pin serve as outer threads and are matched with the inner threads; the piston is arranged in the barrel body and divides the barrel body into an upper seal cavity and a lower seal cavity; an upper hole and a lower hole are formed in the upper end and the lower end of the rotating push section of the rotating shaft respectively, and the upper hole is communicated with the lower hole through a hollow channel; a through hole communicated with the upper seal cavity and the lower seal cavity is also formed in the piston; a radial sliding rail preventing the piston from rotating is arranged between the piston and the barrel body; the shaft shoulder portion of the key shaft section of the rotating shaft is inserted into the barrel body and is sealed and fixed by a seal cover; a shaft shoulder seal ring is arranged on the shaft shoulder portion of the key shaft section, a threaded hole communicated with the upper hole of the rotating push section is formed in the center of the key shaft section, and the threaded hole is sealed by an adjusting screw. Through the adjustment of the flow of damping oil when the damper is opened or reset, the rotating push damper enables opening to be handy, effort to be saved and reset to be stabilized in speed.

Description

Revolve and push away damper

Technical field

The present invention relates to a kind of damper, particularly a kind of revolving of hinge axis during for opening and closing such as furniture, sanitary equipment pushes away damper.

Background technology

At present, the parts of some devices rotate around axle, as the lid that needs in furniture to open up and down, lavatory lid etc., mainly adopt two kinds of structures: a kind of is directly with bearing pin, to connect, and is opening, can send while putting down the very large sound, and the impact caused is large; Another kind is to adopt spring buffer, easily because of spring corrosion or elastic force, loses efficacy and can't use again, and application life is short; Designed a kind of snubber with blade for the problems referred to above Chinese patent 200920198690.0, this device adopts damping unit realize the unlatching of renovating or reset, and in damping unit, the flow-control of damping oil is to open or reset to produce the main cause of resistance while renovating.But the same defect existed of this device is open or reset while renovating, because the flow-control of damping oil is identical, the resistance that causes opening or produce while resetting is identical, make in opening process and relatively require great effort, and there are cylinder muscle and rotating shaft wearing and tearing and blade and barrel wearing and tearing, declined to a great extent application life.

Therefore, the damper that needs a kind of problem such as large of relatively requiring great effort, wear and tear can overcome the unlatching that prior art exists the time.

Summary of the invention

The purpose of this invention is to provide a kind of labor-saving opening rapidly, little the revolving that reset at the uniform velocity and wear and tear push away damper.

The object of the present invention is achieved like this: a kind of revolving pushes away damper, comprises rotating shaft and cylindrical shell, it is characterized in that: rotating shaft is inserted in cylindrical shell; Rotating shaft forms by revolving the section of pushing away and key shaft part, revolves on the section of pushing away and radially is fixed with and revolves distribution, revolves the section of pushing away and is set with successively piston and valve block from bottom to top; Piston inner hole is provided with internal thread, revolves that the two ends of distribution are top matches with it as external screw thread; Piston external diameter is provided with piston packing; Piston is separated into annular seal space annular seal space and lower seal chamber in cylindrical shell; The section of the pushing away upper and lower end that revolves of rotating shaft has He Xia hole, hole and is connected by hollow channel; Also be provided with the perforation that is communicated with upper annular seal space and lower seal chamber on piston; Be provided with the track that radially slides that prevents piston rotation between piston and cylindrical shell barrel; In the shaft shoulder partial insertion cylindrical shell of the key shaft part of rotating shaft, and fixed by seal cap sealing; The shaft shoulder of key shaft part partly is provided with shaft shoulder sealing ring, and key shaft part center has screwed hole to communicate with the upper hole of revolving the section of pushing away, and screwed hole is by the adjustment screw shutoff.

Purpose of the present invention can also realize like this: diameter is gradually large from bottom to top for the section of pushing away of revolving of rotating shaft, is the inverted round stage shape; During descent of piston, the gap of revolving between the section of pushing away of piston inner hole and rotating shaft becomes greatly gradually, makes damping oil in the lower seal chamber when this gap enters annular seal space, and oil inlet quantity is the state that strengthens gradually.

The track that radially slides that prevents piston rotation arranged between piston and cylindrical shell barrel is: the convex plane that two symmetries are set at cylinder inboard wall, corresponding with it, the section of two symmetries is set on piston external diameter, the two engagement limits piston rotation, and piston can only be axially moved in the annular seal space of cylindrical shell.

The invention has the beneficial effects as follows: open and damping oil flow while resetting by the damping adjusting device, make and open Portable power saving, speed stabilizing resets; Simultaneously, a piston packing is installed on the external diameter due to piston, can seals the upper-lower seal chamber, do not make damping oil along channelling between piston external diameter and cylinder inboard wall, can play wear-resisting effect again, can significantly improve the application life of damper.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention is further detailed explanation:

Fig. 1 is structural representation of the present invention;

Fig. 2 is cylindrical shell longitudinal plan of the present invention;

Fig. 3 is piston longitudinal plan of the present invention;

Fig. 4 is pivot structure schematic diagram of the present invention;

Fig. 5 is seal cover schematic diagram of the present invention.

The specific embodiment

In accompanying drawing, each component label is as follows:

Rotating shaft 1(key shaft part 1.1, screw 1.11, revolve the section of pushing away 1.2, upper hole 1.21, lower hole 1.22, hollow channel 1.23), cylindrical shell 2(convex plane 2.1), seal cover 3, the upper annular seal space 4.1 of annular seal space 4(, lower seal chamber 4.2), revolve promote 5, piston 6(perforation 6.1), valve block 7, piston packing 8, shaft shoulder sealing ring 9, adjustment screw 10.

Referring to figs. 1 through Fig. 5, a kind of revolving pushes away damper, comprises rotating shaft 1 and cylindrical shell 2, it is characterized in that: rotating shaft 1 is inserted in cylindrical shell 2; Rotating shaft 1, by revolving the section of pushing away 1.2 and key shaft part 1.1 forms, is revolved on the section of pushing away 1.2 radially to be fixed with to revolve and is promoted 5, revolves the section of pushing away 1.2 and is set with successively piston 6 and valve block 7 from bottom to top; Piston 6 endoporus are provided with internal thread, revolve that the two ends of promoting 5 are top matches with it as external screw thread; Piston 6 external diameters are provided with piston packing 8; Piston 6 is separated into annular seal space 4.1 and lower seal chamber 4.2 by annular seal space 4 cylindrical shell 2 is interior; The section of pushing away 1.2 upper and lower ends that revolve of rotating shaft 1 have hole 1.21 and lower hole 1.22 and are connected by hollow channel 1.23; Also be provided with the perforation 6.1 that is communicated with upper annular seal space 4.1 and lower seal chamber 4.2 on piston 6; Be provided with the track that radially slides that prevents piston rotation between piston 6 and cylindrical shell 2 barrels; In the shaft shoulder partial insertion cylindrical shell of the key shaft part 1.1 of rotating shaft 1, and fixing by seal cover 3 sealings; The shaft shoulder of key shaft part 1.1 partly is provided with shaft shoulder sealing ring 9, and key shaft part 1.1 centers have screwed hole 1.11 to communicate with the upper hole 1.21 of revolving the section of pushing away 1.2, and screwed hole 1.11 is by adjustment screw 10 shutoff.

Diameter is gradually large from bottom to top for the section of pushing away 1.2 of revolving of rotating shaft 1, is the inverted round stage shape; During descent of piston, the gap of revolving between the section of pushing away 1.2 of piston inner hole and rotating shaft 1 becomes greatly gradually, makes damping oil in lower seal chamber 4.2 when this gap enters annular seal space, and oil inlet quantity is the state that strengthens gradually.

The track that radially slides that prevents piston rotation arranged between piston 6 and cylindrical shell 2 barrels is: the convex plane 2.1 that two symmetries are set at cylindrical shell 2 inwalls, corresponding with it, the section of two symmetries is set on piston 6 external diameters, the two engagement limits piston 6 rotation, and piston can only be axially moved in the annular seal space 4 of cylindrical shell.

Key shaft part 1.1 centers of rotating shaft are screwed hole 1.11, screw in adjustment screw 10 in screwed hole 1.11, the adjustment screw afterbody can go directly and revolve the upper hole 1.21 of the section of pushing away 1.2, utilize the adjustment screw afterbody to control the sectional area of oilhole 1.21, the oil inlet quantity that leads to upper annular seal space with adjusting, be used for setting the grade specification of bearing moment of torsion of damper, simultaneously before screwing in adjustment screw, the air sandwiched when this screw can be got rid of canned damping oil.

Piston packing 8 is set on piston 6 external diameters and matches with the cylinder inboard wall sealing, and when piston when cylinder inboard wall is done axially-movable, because of with the lubricating of damping oil, can reduce piston and cylinder inboard wall and wear and tear.

Concept up and down in the narrations such as above-described " rotating shaft 1 revolve the section of pushing away 1.2 upper and lower ends ", " diameter is gradually large from bottom to top for the section of pushing away 1.2 of revolving of rotating shaft 1 " is shown as under the right side is in the drawings, and a left side is upper, because diagram is revolved, to push away damper be that transverse plane is put state.

The specific works process:

When rotating shaft 1 rotation, it revolves distribution 5 and rotates with axle, promote 5 and match as the internal thread in the endoporus of external screw thread and piston 6 by two ends are top because revolving, be provided with the rotation of piston that radially slided track restrictions that prevents piston rotation between piston 6 and cylindrical shell 2 barrels, piston 6 can only be done axially-movable cylindrical shell 2 annular seal spaces 4 are interior revolving under the promotion of promoting 5 in addition.Piston 6 is separated into annular seal space 4.1 and lower seal chamber 4.2 by annular seal space 4 cylindrical shell 2 is interior; Along with piston 6 moves up and down, the volume in upper annular seal space 4.1 and lower seal chamber 4.2 changes.

Revolving Tui Duan 1.2 centers is hollow channel 1.23, has lower hole 1.22 in bottom, and the upper end side has upper hole 1.21, and when piston 6 moves up and down in annular seal space, damping oil is by current downflow on hollow channel 1.23, and this is the damping oil duplex channel.

Piston 6 physical location longitudinally has perforation 6.1, and the top of piston 6 is provided with valve block 7.When piston 6 moves upward, valve block 7 will be bored a hole and 6.1 be covered, and when piston 6 down moves, damping oil backs down valve block 7, open perforation 6.1, and damping oil flows in annular seal space 4.1 by perforation 6.1 from lower seal chamber 4.2, and this is the damping oil half-duplex channel.

Diameter is gradually large from bottom to top for the section of pushing away 1.2 of revolving of rotating shaft 1, is the inverted round stage shape; During descent of piston, the gap of revolving between the section of pushing away 1.2 of piston inner hole and rotating shaft 1 becomes greatly gradually, makes damping oil in lower seal chamber 4.2 when this gap enters annular seal space, and oil inlet quantity is the state that strengthens gradually, and this is damping oil variable duplex channel.

Below to take that the present invention is arranged on lavatory lid be the example explanation: during installation, damper cylindrical shell of the present invention is fixed on toilet, the key shaft part of rotating shaft is connected with the of bonding cover of lavatory lid.

When toilet lid is upwards opened while digging, the distribution of revolving of damper is rotated with rotating shaft, the promotion piston moves down, and lower seal chamber volume dwindles, and damping oil enters upper annular seal space by following three passages: the one, and lower hole, hollow channel, the upper hole of being revolved the section of pushing away by rotating shaft enter upper annular seal space; The 2nd, 6.1 back down valve block and flow into annular seal space by boring a hole; The 3rd, the gap of revolving between the section of pushing away 1.2 of piston inner hole and rotating shaft 1 enters annular seal space, and this passage is along with moving down of piston becomes large gradually.Because the valve block on perforation top on piston can automatic damped oil backs down, oil is direct annular seal space from the lower seal chamber flows into also, add moving down because of piston, make piston push away intersegmental moving back to pull out gap increasing with revolving, also make damping oil reflux in a large number, add the intrinsic capacity of returns of revolving the section of pushing away hollow channel, will make damping force descend rapidly, make horse disclose lid and turn on can be easily and open.

Lavatory lid is when putting down, along with the change gravity of angle be applied to revolve the moment of torsion pushed away in the damper rotating shaft can be increasing, revolve while pushing away damper rotating shaft rotation, it revolves sales promotion meeting promotion piston and moves upward, upper annular seal space volume diminishes, because being promoted valve block by the damping oil in upper annular seal space, the perforation on piston covers, damping oil in upper annular seal space can only flow in the lower seal chamber by revolving the section of pushing away hollow channel, the gap of revolving the section of pushing away because of piston inner hole and rotating shaft is the state of pulling out that moves back upwards diminished gradually simultaneously, therefore moving upward, piston can make piston more and more less with the gap of revolving the section of pushing away in process, dredge oil amount is fewer and feweri, make damping force increasing, when in toilet lid decline process, moment becomes increasing like this, its decrease speed can not accelerated, reach steady uniform descent, do not produce impact sound, reached at the uniform velocity slow effect of falling.

Protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reaches conceives the equivalent technologies means that can expect according to the present invention in those skilled in the art.

Claims

1. one kind revolves and pushes away damper, comprises rotating shaft (1) and cylindrical shell (2), and it is characterized in that: rotating shaft (1) is inserted in cylindrical shell (2); Rotating shaft (1) forms by revolving the section of pushing away (1.2) and key shaft part (1.1), revolves on the section of pushing away (1.2) and radially is fixed with and revolves distribution (5), revolves the section of pushing away (1.2) and is set with successively piston (6) and valve block (7) from bottom to top; Piston (6) endoporus is provided with internal thread, revolves that the two ends of distribution (5) are top matches with it as external screw thread; Piston (6) external diameter is provided with piston packing (8); Piston (6) is separated into annular seal space (4) upper annular seal space (4.1) and lower seal chamber (4.2) in cylindrical shell (2); The section of pushing away (1.2) upper and lower end that revolves of rotating shaft (1) has hole (1.21) and lower hole (1.22) and is connected by hollow channel (1.23); Also be provided with the perforation (6.1) that is communicated with upper annular seal space (4.1) and lower seal chamber (4.2) on piston (6); Be provided with the track that radially slides that prevents piston rotation between piston (6) and cylindrical shell (2) barrel; In the shaft shoulder partial insertion cylindrical shell of the key shaft part (1.1) of rotating shaft (1), and fixing by seal cover (3) sealing; The shaft shoulder of key shaft part (1.1) partly is provided with shaft shoulder sealing ring (9), and key shaft part (1.1) center has screwed hole (1.11) to communicate with the upper hole (1.21) of revolving the section of pushing away (1.2), and screwed hole (1.11) is by adjustment screw (10) shutoff.

2. according to claim 1 revolving pushes away damper, it is characterized in that: diameter is gradually large from bottom to top for the section of pushing away (1.2) of revolving of rotating shaft (1), is the inverted round stage shape; During descent of piston, the gap of revolving between the section of pushing away (1.2) of piston inner hole and rotating shaft (1) becomes greatly gradually, makes damping oil in lower seal chamber (4.2) when this gap enters annular seal space, and oil inlet quantity is the state that strengthens gradually.

3. according to claim 1 and 2 revolving pushes away damper, it is characterized in that: the track that radially slides that prevents piston rotation arranged between piston (6) and cylindrical shell (2) barrel is: the convex plane (2.1) that two symmetries are set at cylindrical shell (2) inwall, corresponding with it, the section of two symmetries is set on piston (6) external diameter, the two engagement limits piston (6) rotation, and piston can only be axially moved in the annular seal space (4) of cylindrical shell.