CN103485641B

CN103485641B - Double-vane damper

Info

Publication number: CN103485641B
Application number: CN201310480005.4A
Authority: CN
Inventors: 金烈水
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-15
Filing date: 2013-10-15
Publication date: 2016-01-06
Anticipated expiration: 2033-10-15
Also published as: CN103485641A

Abstract

The present invention relates to a kind of Double-vane damper, comprise cylindrical shell, rotating shaft, seal cover etc., the inwall of the section of including of rotating shaft, the shaft shoulder of rotating shaft, cylindrical shell is encircled into a cavity, the section of including appearance two axial ribs, on axial rib, cover has two-door gate flap, first gate flap there is gate flap single hole, second gate flap there is gate flap diplopore, axial rib there is axial rib diplopore, space is left between the first gate flap, axial rib and the second gate flap, the gate flap single hole of the first gate flap and axial rib diplopore are for misplace, and the gate flap diplopore on the second gate flap and axial rib diplopore are just right; An ox horn groove is respectively had in two annular seal spaces of cylindrical shell bottom face and shaft shoulder inner face.The technique effect that the present invention is useful is: be provided with door closure labor-saving opening speed of the present invention fast, declines at the uniform velocity steady, does not produce impact sound, reach slow function of falling buffering, and significantly extend the application life of damper.

Description

Double-vane damper

Technical field

The present invention relates to a kind of Double-vane damper, can be widely used in that buffering when furniture, sanitary equipment, various door closures etc. are opened and close is slow falls damper, can prevent door closure from clashing into and break, impact noise when not producing whereabouts.

Background technology

In damper and snubber application, as in furniture, bathroom, sanitary equipment, need the door opened up and down or lid, as lavatory lid etc., what generally adopt is the direct stud connection of axle and cover, to open or when putting down, because the effect of door closure gravity at door closure, very large impact sound can be sent, or cause and smash; Prior art has and adopts spring buffer, but cannot use because elastic force loses comparatively with rear for a long time, or to cause application life short because of corrosion; The keying of door closure has been cushioned in this field at a kind of damper of research and development at present, the principle of application hydraulic pressure realizes pooling feature when door closure opens and closes, but both at home and abroad the relevant design of this type of damper is very undesirable, or slow reduction of speed degree is too soon or too slow, otherwise service time not for a long time, the life-span is short.

Summary of the invention

The object of this invention is to provide a kind of to open fast and steadily closed and significantly can improve the damper in application life.

The object of the present invention is achieved like this: a kind of Double-vane damper, comprise cylindrical shell and rotating shaft, it is characterized in that: rotating shaft is divided into the section of including inserting cylindrical shell, the shaft shoulder exposing key shaft part and the section of including and expose between key shaft part exposing cylindrical shell, the shaft shoulder is provided with shaft shoulder sealing ring, the top seal cap sealing of cylindrical shell; Centre bore is stamped in sealing, exposes that the centre bore of key shaft part and seal cover is closely sealed to match; The inwall of cylindrical shell is provided with two symmetrical cylinder muscle, cylinder muscle is provided with T-shaped weather strip; The section of including appearance is also provided with two symmetrical axial ribs, and after the section of including inserts cylindrical shell, the inner chamber of cylindrical shell is separated into two isometric annular seal spaces by cylinder muscle, and annular seal space is then divided into the first annular seal space and second annular seal space of two groups of variable volumes by axial rib; Axial rib there is axial rib diplopore, on axial rib, cover has gate flap, gate flap is two-door, first gate flap there is gate flap single hole, second gate flap there is gate flap diplopore, axial rib and leave space between the first gate flap and the second gate flap, the axial rib diplopore on the gate flap single hole of the first gate flap and axial rib is for misplace, and the axial rib diplopore on the gate flap diplopore of the second gate flap and axial rib is just right; Cylindrical shell bottom face respectively has a cylindrical shell ox horn groove in two annular seal spaces, and shaft shoulder inner face also respectively has a shaft shoulder ox horn groove in two annular seal spaces, and the well width of cylindrical shell ox horn groove and shaft shoulder ox horn groove is along gradually wide in same direction of rotation.

Object of the present invention can also following manner realize: axial rib top is arc surface, and the contact surface of axial rib and the first gate flap and the center line of axial rib have an angle of slope.

The inner concave on gate flap socket axial rib top is that arc surface curvature is identical with axial rib top; First gate flap is designed to arc surface towards the side of the first annular seal space and cylinder inboard wall contact site, forms a tip-angled shape.

Cylindrical shell ox horn groove and shaft shoulder ox horn groove are along with the increase of width, and the degree of depth is also in increase.

Advantageous Effects of the present invention is: install and use door closure opening speed of the present invention fast, decrease speed steadily at the uniform velocity, does not produce impact sound, reaches slow function of falling buffering, and significantly extends application life.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the invention will be further described:

Fig. 1 is overall structure schematic diagram of the present invention;

Fig. 2 is rotating shaft schematic diagram of the present invention;

Fig. 3 is double leaf door principle schematic of the present invention;

Fig. 4 is cylindrical shell sectional view of the present invention;

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

Fig. 6 is cylindrical shell ox horn groove schematic diagram of the present invention.

Detailed description of the invention

The concrete title of each label in accompanying drawing:

Rotating shaft 1(exposes key shaft part 1.1, the section of including 1.2, axial rib 1.21, axial rib diplopore 1.211, the shaft shoulder 1.3, shaft shoulder ox horn groove 1.31), cylindrical shell 2(cylinder muscle 2.1, cylindrical shell ox horn groove 2.2), seal cover 3, annular seal space 4(first annular seal space 4.1, second annular seal space 4.2), gate flap 5(first gate flap 5.1, gate flap single hole 5.11, second gate flap 5.2, gate flap diplopore 5.21), shaft shoulder sealing ring 6, T-shaped weather strip 7.

Embodiment:

Referring to figs. 1 through Fig. 6, a kind of Double-vane damper, comprise cylindrical shell 2 and rotating shaft 1, it is characterized in that: rotating shaft 1 is divided into the section of including 1.2 inserting cylindrical shell 2, the shaft shoulder 1.3 exposing key shaft part 1.1 and the section of including and expose between paragraph key axle exposing cylindrical shell 2, the shaft shoulder 1.3 is provided with shaft shoulder sealing ring 6; The top seal cover 3 of cylindrical shell 2 seals, and seal cover 3 has centre bore, and expose key shaft part 1.1 and match with the centre bore of seal cover 3 is closely sealed, the inwall of the section of including 1.2, the shaft shoulder 1.3, cylindrical shell 2 is encircled into a cavity, is full of damping oil in cavity.

The inwall of cylindrical shell 2 is provided with two symmetrical cylinder muscle 2.1, cylinder muscle is provided with T-shaped weather strip 7; The section of including 1.2 appearance is also provided with two symmetrical axial ribs 1.21, after the section of including 1.2 inserts cylindrical shell, the inner chamber of cylindrical shell 2 is separated into two isometric annular seal spaces 4 by cylinder muscle 2.1, and annular seal space 4 is then divided into the first annular seal space 4.1 and the second annular seal space 4.2 of two groups of variable volumes by axial rib 1.21;

Axial rib 1.21 there is axial rib diplopore 1.211, on axial rib 1.21, cover has gate flap 5, gate flap 5 is two-door, first gate flap 5.1 there is gate flap single hole 5.11, second gate flap 5.2 there is gate flap diplopore 5.21, axial rib 1.21 and leave space between the first gate flap 5.1 and the second gate flap 5.2, the gate flap single hole 5.11 of the first gate flap 5.1 is with the axial rib diplopore 1.211 on axial rib 1.21 for misplace, and the axial rib diplopore 1.211 on the gate flap diplopore 5.21 of the second gate flap 5.2 and axial rib 1.21 is just right; Cylindrical shell 2 bottom face respectively has a cylindrical shell ox horn groove 2.2 in two annular seal spaces 4, the shaft shoulder 1.3 inner face also respectively has a shaft shoulder ox horn groove 1.31 in two annular seal spaces 4, and the well width of cylindrical shell ox horn groove 2.2 and shaft shoulder ox horn groove 1.31 is along gradually wide in same direction of rotation.Can be designed to the increase along with width of cylindrical shell ox horn groove 2.2 and shaft shoulder ox horn groove 1.31 further, the degree of depth is also in increase.

Axial rib 1.21 top is arc surface, and axial rib 1.21 and the contact surface of the first gate flap 5.1 and the center line of axial rib 1.21 have an angle of slope.Its effect is, when rotating shaft is turned left, axial rib is fitted on the second gate flap, and can form the larger gap that has certain angle between axial rib 1.21 and the first gate flap 5.1, impel a large amount of leakage of oil, when also making door closure open, resistance subtracts greatly, turns over easily.Moreover, when rotating shaft is turned right, when first gate flap and axial rib are fitted, due to the radial component that centrifugal force and oil pressure produce the first gate flap, the contact surface of axial rib top and gate flap is arc surface, axial rib can produce radial thrust to gate flap when rotating, make a concerted effort for these two strands gate flap and cylinder inboard wall to be fit together tightly, make described gate flap and sleeve fit tightly first and do not make damping oil leak, ensure that in annular seal space, oil pressure is stablized, second when gate flap and cylinder inboard wall wear and tear, both gaps can not be made to increase, but can auto-compensation, significantly can increase application life.

The inner concave that gate flap 5 is socketed axial rib 1.21 top is that arc surface curvature is identical with axial rib 1.21 top; First gate flap 5.1 is designed to arc surface towards the side of the first annular seal space 4.1 and cylinder inboard wall contact site, forms a tip-angled shape.When by damping oil extruding, radial thrust can be produced to this arc surface, gate flap 5 is pushed to cylindrical shell 2.The top ends of adding axial rib 1.21 is arc surface, coincide with concaved circular cambered surface in gate flap 5, when rotating shaft 1 is turned right, the top arc face of its axial rib 1.21 is when promotion the first gate flap 5.1, also can produce radial component, the corners of the first gate flap 5.1 be pushed to the inwall of cylindrical shell 2.Moreover described axial rib 1.21 and the contact surface of the first gate flap 5.1 and the center line of axial rib 1.21 have an angle of slope, therefore when rotating shaft 1 is turned right, when its axial rib 1.21 produces rotary thrust to the first gate flap 5.1, make gate flap 5 countershaft 1 axle center produce centrifugal force, gate flap 5 can be pushed to cylindrical shell 2 again.Above three bursts of radial thrusts, make a concerted effort all the time by gate flap 5 and cylindrical shell 2 inwall tight connecting simultaneously, and pressure is more large more closely sealed, damping oil is not made to leak, damper operating pressure is stablized, and gate flap 5 and the wearing and tearing of cylindrical shell 2 inwall can be compensated, greatly improve the application life of damper.

The cylinder muscle of cylindrical shell 2 is provided with T-shaped weather strip 7, and make to be sealed between the cylinder muscle 2.1 of the external surface of the section of including 1.2 and cylindrical shell 2, damping oil can not leak, and can prevent both contact surfaces from wearing and tearing because rotating for a long time, significantly can improve the application life of damper.

Respectively have a cylindrical shell ox horn groove 2.2 in the annular seal space 4 of two, cylindrical shell 2 bottom, cylindrical shell ox horn groove 2.2 is counterclockwise more and more wider; Also a shaft shoulder ox horn groove 1.31 is respectively had in the shaft shoulder 1.3 inner face two annular seal spaces 4, and it is more and more wider with the identical direction of rotation of cylindrical shell ox horn groove 2.2, and cylindrical shell ox horn groove 2.2 and shaft shoulder ox horn groove 1.31 are along with the increase of width, the degree of depth is also in increase, when making rotating shaft 1 dextrorotation like this, ox horn groove leakage of oil cross section is more and more less, and in the first annular seal space, the damping force of 4.1 is increasing, damper cuts out at the uniform velocity stable.

The course of work:

When rotating shaft is turned right, the first gate flap 5.1 and axial rib close, and because the axial rib diplopore on the gate flap single hole of the first gate flap and axial rib misplaces, damping oil cannot be passed through.Damping oil only has and enters the second annular seal space 4.2 by cylindrical shell ox horn groove 2.2 and shaft shoulder ox horn groove 1.31 by the first annular seal space 4.1, and along with rotation two ox horn grooves width, the degree of depth reduces and leakage of oil amount reduces, and damper closes is stablized.When rotating shaft is turned left, second gate flap 5.2 is fitted with the axial rib of rotating shaft, because the gate flap diplopore of the second gate flap is relative with axial rib diplopore, damping oil passes through gate flap diplopore and the axial rib diplopore of the second gate flap by the second annular seal space 4.2, enter the space between axial rib and the first gate flap 5.1, then enter the first annular seal space 4.1 from the gate flap single hole 5.11 of the first gate flap; Meanwhile, along with the width of rotation two ox horn grooves, the degree of depth increase and leakage of oil amount subtracts and adds, damper is opened fast.

Be arranged on toilet for the present invention, further illustrate principle of the present invention and the course of work:

During installation, this damper cylindrical shell is fixed on toilet, rotating shaft is exposed key shaft part and be connected with the key cover of lavatory lid.

The gravity that lavatory lid produces when putting down, can along with the change of angle downwards, and the moment of torsion be applied in damper rotating shaft can be increasing, and during Double-vane damper axis of rotation, on axial rib, cover has double leaf gate flap.According to turning clockwise, set the first gate flap before axial rib, and the second gate flap is after axial rib, leaves certain interval between three, wherein, axial rib has two holes, the second gate flap also has two holes, both Kong Yukong are corresponding.

When toilet lid is turned over open time, described rotating shaft is to anticlockwise, its axial rib overlaps with described second gate flap with revolving after axis to move, damping oil in second annular seal space can flow to before axial rib by axial rib diplopore, because axial rib and the first gate flap have gap, damping oil in this gap in converge, then flow through the first gate flap single hole in the middle of gate flap (on this hole and axial rib, two holes are arranged for staggering) and enter into the first annular seal space above again, complete reflux technique and pressure release, make toilet lid can easily on turn over; Add the ox horn groove of cylindrical shell bottom face and the ox horn groove of rotating shaft shaft shoulder inner face, the rapid expansion of two slot cross-sections, leakage of oil amount increases, and damping force is declined rapidly, more impels in toilet lid and turn over and can easily open rapidly.

When closing under toilet lid, then described axial rib moves to dextrorotation with rotating shaft, axial rib and the second gate flap depart from, and fit with the first gate flap, gate flap single hole in the middle of on axial rib diplopore now on axial rib and the first gate flap misplaces and airtight, from then on damping oil in first annular seal space cannot circulate by gate flap, refluxes less than in the second annular seal space; Because the moment of torsion closed under toilet lid is increasing, the damping oil extruding force imposed in the first annular seal space is also increasing, the now ox horn groove of described cylindrical shell bottom, and the ox horn groove on rotating shaft shaft shoulder inner face, the cross section of its leakage of oil is but more and more less, the leakage rate of oil is also just fewer and feweri, damping force is increasing, when toilet lid decline moment is increasing, its decrease speed can not be accelerated, on the contrary can steady uniform descent, does not produce impact sound, reach slow function of falling buffering, and significantly extend application life.

Buffering when the present invention can be widely used in the various door closure unlatching such as furniture, sanitary equipment and close is slow falls damper, and when can prevent from, generation impact noise and door closure clash into and break.

Content described in the embodiment of the present invention is only enumerating the way of realization of inventive concept; protection scope of the present invention; should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also and conceive the equivalent technologies means that can expect according to the present invention in those skilled in the art.

Claims

1. a Double-vane damper, comprise cylindrical shell (2) and rotating shaft (1), rotating shaft (1) is divided into the section of including (1.2) inserting cylindrical shell (2), the shaft shoulder (1.3) exposing key shaft part (1.1) and the section of including (1.2) and expose between key shaft part (1.1) exposing cylindrical shell (2), the shaft shoulder (1.3) is provided with shaft shoulder sealing ring (6), the top of cylindrical shell (2) seals with seal cover (3), seal cover (3) has centre bore, exposes key shaft part (1.1) and matches with the centre bore of seal cover (3) is closely sealed, the inwall of cylindrical shell (2) is provided with two symmetrical cylinder muscle (2.1), cylinder muscle is provided with T-shaped weather strip (7), the section of including (1.2) appearance is also provided with two symmetrical axial ribs (1.21), after the section of including (1.2) inserts cylindrical shell, the inner chamber of cylindrical shell (2) is separated into two isometric annular seal spaces (4) by cylinder muscle (2.1), and annular seal space (4) is then divided into the first annular seal space (4.1) and second annular seal space (4.2) of two groups of variable volumes by axial rib (1.21), axial rib (1.21) there is axial rib diplopore (1.211), the upper cover of axial rib (1.21) has gate flap (5), gate flap (5) is for two-door, first gate flap (5.1) there is gate flap single hole (5.11), second gate flap (5.2) there is gate flap diplopore (5.21), axial rib (1.21) and leave space between the first gate flap (5.1) and the second gate flap (5.2), the gate flap single hole (5.11) of the first gate flap (5.1) and the axial rib diplopore (1.211) on axial rib (1.21) are for misplace, the gate flap diplopore (5.21) of the second gate flap (5.2) is just right with the axial rib diplopore (1.211) on axial rib (1.21), cylindrical shell (2) bottom face respectively has a cylindrical shell ox horn groove (2.2) in two annular seal spaces (4), the shaft shoulder (1.3) inner face also respectively has a shaft shoulder ox horn groove (1.31) in two annular seal spaces (4), the well width of cylindrical shell ox horn groove (2.2) and shaft shoulder ox horn groove (1.31) is along gradually wide in same direction of rotation, it is characterized in that: axial rib (1.21) top is arc surface, axial rib (1.21) has an angle of slope with the contact surface of the first gate flap (5.1) and the center line of axial rib (1.21).

2. Double-vane damper according to claim 1, is characterized in that: the inner concave on gate flap (5) socket axial rib (1.21) top is that arc surface curvature is identical with axial rib (1.21) top; First gate flap (5.1) is designed to arc surface towards the side of the first annular seal space (4.1) and cylinder inboard wall contact site, forms a tip-angled shape.

3. Double-vane damper according to claim 1 and 2, is characterized in that: cylindrical shell ox horn groove (2.2) and shaft shoulder ox horn groove (1.31) are along with the increase of width, and the degree of depth is also in increase.