CN203515118U

CN203515118U - Double-leaf damper

Info

Publication number: CN203515118U
Application number: CN201320634152.8U
Authority: CN
Inventors: 金烈水
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-15
Filing date: 2013-10-15
Publication date: 2014-04-02
Anticipated expiration: 2023-10-15

Abstract

The utility model relates to a double-leaf damper which comprises a barrel body, a rotating shaft, a sealed cover and the like. A containing section of the rotating shaft, a shaft shoulder of the rotating shaft and the inner wall of the barrel body define a cavity together, two shaft reinforcing ribs are arranged on the outer surface of the containing section, double-gate gate leaves are arranged on the shaft reinforcing ribs in a sleeved mode, the first gate leaf is provided with a gate leaf single hole, the second gate leaf is provided with gate leaf double holes, the shaft reinforcing ribs are provided with shaft reinforcing rib double holes, gaps are reserved among the first gate leaf, the shaft reinforcing ribs and the second gate leaf, the gate leaf single hole of the first gate leaf is mismatched with the shaft reinforcing rib double holes, and the gate double holes of the second gate leaf are aligned with the shaft reinforcing rib double holes. Ox-horn grooves are formed in the sealing cavity of the bottom end face of the barrel body and the sealing cavity of the inner end face of the shaft shoulder respectively. The double-leaf damper has the advantages that a gate cover mounted with the double-leaf damper can be opened with less effort and high speed, falling speed is stable, impact sound cannot be generated, the functions of slow descent and buffering are achieved, and the service life of the damper is prolonged greatly.

Description

Double leaf damper

Technical field

The utility model relates to a kind of double leaf damper, and buffering when can be widely used in the unlatchings such as furniture, sanitary equipment, various door closures and closing is slow falls damper, can prevent from that door closure from clashing into break impact noise while not producing.

Background technology

In damper and snubber application, in furniture, bathroom, sanitary equipment, door or the lid that need to open up and down, as lavatory lid etc., what generally adopt is the direct stud connection of axle and cover, when door closure is opened or put down, because the effect of door closure gravity, can send very large impact sound, or cause and smash; Prior art has and adopts spring buffer, but for a long time with rear because elastic force mistake is compared with using, 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 pooling feature when principle of application hydraulic pressure realizes door closure keying, but both at home and abroad the design of relevant this type of damper is very undesirable, or slow reduction of speed degree too soon or too slow, or service time is permanent, the life-span is short.

Utility model content

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

The purpose of this utility model is achieved in that a kind of double leaf damper, comprise cylindrical shell and rotating shaft, it is characterized in that: rotating shaft be divided into insert cylindrical shell the section of including, expose exposing key shaft part and the section of including and exposing the shaft shoulder between key shaft part of cylindrical shell, on the shaft shoulder, be provided with shaft shoulder sealing ring, the top seal cap sealing of cylindrical shell; Centre bore is stamped in sealing, exposes closely sealed the matching of centre bore of key shaft part and seal cover; The inwall of cylindrical shell is provided with two symmetrical cylinder muscle, on cylinder muscle, is provided with T shape weather strip; The section of including appearance is also provided with two symmetrical axial ribs, and the section of including is inserted after cylindrical shell, and cylinder muscle is separated into two isometric annular seal spaces by the inner chamber of cylindrical shell, and axial rib is divided into annular seal space the first annular seal space and second annular seal space of two groups of variable volumes; On axial rib, there is axial rib diplopore, on axial rib, cover has gate flap, gate flap is two-door, on the first gate flap, there is gate flap single hole, on the second gate flap, there is gate flap diplopore, between axial rib and the first gate flap and the second gate flap, leave space, the gate flap single hole of the first gate flap and the axial rib diplopore on axial rib for dislocation, the gate flap diplopore of the second gate flap and the axial rib diplopore on axial rib be over against; 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.

The purpose of this utility model can also following manner realize: axial rib top is arc surface, and axial rib and the contact surface of 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; The first gate flap is designed to arc surface towards side and the cylinder inboard wall contact site of the first annular seal space, 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 increasing.

The useful technique effect of the utility model is: install and use door closure opening speed of the present utility model fast, decrease speed steadily at the uniform velocity, does not produce impact sound, has reached slow function of falling buffering, and has significantly extended application life.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the utility model overall structure schematic diagram;

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

Fig. 3 is the utility model double leaf door principle schematic;

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

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

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

The specific embodiment

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(the first annular seal space 4.1, the second annular seal space 4.2), gate flap 5(the first gate flap 5.1, gate flap single hole 5.11, the second gate flap 5.2, gate flap diplopore 5.21), shaft shoulder sealing ring 6, T shape weather strip 7.

Embodiment:

Referring to figs. 1 through Fig. 6, a kind of double leaf damper, comprise cylindrical shell 2 and rotating shaft 1, it is characterized in that: rotating shaft 1 be divided into insert cylindrical shell 2 the section of including 1.2, expose exposing key shaft part 1.1 and the section of including and exposing the shaft shoulder 1.3 between paragraph key axle of cylindrical shell 2, on the shaft shoulder 1.3, be provided with shaft shoulder sealing ring 6; Seal cover 3 sealings for the top of cylindrical shell 2, seal cover 3 has centre bore, exposes closely sealed the matching of centre bore of key shaft part 1.1 and seal cover 3, and 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, on cylinder muscle, is provided with T shape weather strip 7; The section of including 1.2 appearances are also provided with two symmetrical axial ribs 1.21, the section of including 1.2 is inserted after cylindrical shell, cylinder muscle 2.1 is separated into two isometric annular seal spaces 4 by the inner chamber of cylindrical shell 2, and axial rib 1.21 is divided into annular seal space 4 the first annular seal space 4.1 and second annular seal space 4.2 of two groups of variable volumes;

On 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, on the first gate flap 5.1, there is gate flap single hole 5.11, on the second gate flap 5.2, there is gate flap diplopore 5.21, between axial rib 1.21 and the first gate flap 5.1 and the second gate flap 5.2, leave space, the gate flap single hole of the first gate flap 5.1 5.11 is dislocation with the axial rib diplopore 1.211 on axial rib 1.21, the gate flap diplopore 5.21 of the second gate flap 5.2 and the axial rib diplopore 1.211 on axial rib 1.21 be over against; Cylindrical shell 2 bottom faces respectively have a cylindrical shell ox horn groove 2.2 in two annular seal spaces 4, the shaft shoulder 1.3 inner faces also respectively have 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.Further can be designed to cylindrical shell ox horn groove 2.2 and shaft shoulder ox horn groove 1.31 along with the increase of width, the degree of depth is also increasing.

Axial rib 1.21 tops are arc surface, and the contact surface of axial rib 1.21 and 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, between axial rib 1.21 and the first gate flap 5.1, can form a larger gap with certain angle, impels a large amount of leakage of oils, and while also making door closure open, resistance subtracts greatly, turns on light.Moreover, when rotating shaft is turned right, when the first gate flap and axial rib laminating, the radial component to the first gate flap generation due to centrifugal force and oil pressure, the contact surface of axial rib top and gate flap is arc surface, during axial rib rotation, can produce radial thrust to gate flap, make a concerted effort for these two strands gate flap and cylinder inboard wall to be fit together tightly, make first described gate flap and sleeve fit tightly damping oil is leaked, guarantee that in annular seal space, oil pressure is stable, second, when gate flap and cylinder inboard wall wearing and tearing, can not make both gaps increase, but can auto-compensation, can significantly increase application life.

The inner concave on gate flap 5 socket axial rib 1.21 tops is that arc surface curvature is identical with axial rib 1.21 tops; The first gate flap 5.1 is designed to arc surface towards side and the cylinder inboard wall contact site of the first annular seal space 4.1, forms a tip-angled shape.When being subject to damping oil extruding, can produce radial thrust 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 the interior concaved circular cambered surface of gate flap 5, when rotating shaft 1 is turned right, the top arc face of its axial rib 1.21 is when promoting the first gate flap 5.1, also can produce radial component, the wedge angle portion of the first gate flap 5.1 be pushed to the inwall of cylindrical shell 2.Moreover the contact surface of described axial rib 1.21 and 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 1.21 pairs of the first gate flaves 5.1 of its axial rib produce rotary thrust, 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, with joint efforts all the time by gate flap 5 and cylindrical shell 2 inwall tight connectings, pressure is more closely sealed more greatly simultaneously, do not make damping oil leak, make damper operating pressure stable, and can compensate the wearing and tearing of gate flap 5 and cylindrical shell 2 inwalls, the application life of greatly improving damper.

Cylinder at cylindrical shell 2 is provided with T shape weather strip 7 on muscle, makes between the external surface of the section of including 1.2 and the cylinder muscle 2.1 of cylindrical shell 2 sealedly, and damping oil can not leak, and can prevent that both contact surfaces from wearing and tearing because of rotation for a long time, can significantly improve the application life of damper.

In the annular seal space 4 of two of 2 bottoms of cylindrical shell, respectively have a cylindrical shell ox horn groove 2.2, cylindrical shell ox horn groove 2.2 is counterclockwise more and more wider; In two annular seal spaces 4 of the shaft shoulder 1.3 inner face, also respectively there is a shaft shoulder ox horn groove 1.31, and more and more wider with cylindrical shell ox horn groove 2.2 identical direction of rotation, 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 increasing, while making like this rotating shaft 1 dextrorotation, ox horn groove leakage of oil cross section is more and more less, and in the first annular seal space, 4.1 damping force 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 is closed with axial rib, because the gate flap single hole of the first gate flap and the axial rib diplopore on axial rib misplace, damping oil cannot be passed through.Damping oil only has by cylindrical shell ox horn groove 2.2 and shaft shoulder ox horn groove 1.31 and enters the second annular seal space 4.2 by the first annular seal space 4.1, and along with width, the degree of depth of two ox horn grooves of rotation reduces and leakage of oil amount reduces, makes damper closes stable.When rotating shaft is turned left, the second gate flap 5.2 is fitted with the axial rib of rotating shaft, the gate flap diplopore of cause 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 from the gate flap single hole 5.11 of the first gate flap, enter the first annular seal space 4.1; Meanwhile, along with the width, the degree of depth of two ox horn grooves of rotation increases and leakage of oil amount subtracts and adds, damper is opened fast.

It is example that the utility model of take is arranged on toilet, further illustrates principle of the present utility model and the course of work:

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

The gravity that lavatory lid produces when putting down, can be along with the change of decline angle, and the moment of torsion being applied in damper rotating shaft can be increasing, and when the rotating shaft of double leaf damper is rotated, 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, has two holes on axial rib, also has two holes on the second gate flap, both Kong Yukong are corresponding.

In toilet lid, turn over while opening, described rotating shaft is to anticlockwise, its axial rib overlaps with revolving to move with described the second gate flap after axial, damping oil in the second annular seal space can flow to before axial rib by axial rib diplopore, because of axial rib and the first gate flap gapped, damping oil converges in gap during this time, then the first gate flap single hole (on this hole and axial rib, two holes are the setting of staggering) in the middle of gate flap of flowing through enters into the first annular seal space above again, complete reflux technique and pressure release, toilet lid is turned on can be easily; 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 turns over and can easily open rapidly.

While closing under toilet lid, 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, the now dislocation of the gate flap single hole in the middle of on the axial rib diplopore on axial rib and the first gate flap and airtight, the from then on gate flap circulation of damping oil in the first annular seal space, refluxes less than in the second annular seal space; Because the moment of torsion closing under toilet lid is increasing, the damping oil extruding force imposing in the first annular seal space is also increasing, the ox horn groove of described cylindrical shell bottom now, 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 accelerated, and steady uniform descent, does not produce impact sound on the contrary, reach slow function of falling buffering, and significantly extended application life.

The utility model can be widely used in the various door closures such as furniture, sanitary equipment when opening and closing buffering is slow falls damper, and in the time of can preventing from, produce impact noise and door closure and clash into and break.

Content described in the utility model embodiment is only enumerating the way of realization of utility model design; protection domain of the present utility model; should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and the equivalent technologies means that can expect according to the utility model design in those skilled in the art.

Claims

1. a double leaf damper, comprise cylindrical shell (2) and rotating shaft (1), it is characterized in that: rotating shaft (1) be divided into insert cylindrical shell (2) the section of including (1.2), expose exposing key shaft part (1.1) and the section of including (1.2) and exposing the shaft shoulder (1.3) between key shaft part (1.1) of cylindrical shell (2), on the shaft shoulder (1.3), be provided with shaft shoulder sealing ring (6), seal cover for top (3) sealing of cylindrical shell (2), seal cover (3) has centre bore, exposes closely sealed the matching of centre bore of key shaft part (1.1) and seal cover (3), the inwall of cylindrical shell (2) is provided with two symmetrical cylinder muscle (2.1), on cylinder muscle, is provided with T shape weather strip (7), the section of including (1.2) appearance is also provided with two symmetrical axial ribs (1.21), the section of including (1.2) is inserted after cylindrical shell, cylinder muscle (2.1) is separated into two isometric annular seal spaces (4) by the inner chamber of cylindrical shell (2), and axial rib (1.21) is divided into annular seal space (4) the first annular seal space (4.1) and second annular seal space (4.2) of two groups of variable volumes, on 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 two-door, on the first gate flap (5.1), there is gate flap single hole (5.11), on the second gate flap (5.2), there is gate flap diplopore (5.21), between axial rib (1.21) and the first gate flap (5.1) and the second gate flap (5.2), leave space, the gate flap single hole (5.11) of the first gate flap (5.1) is dislocation with the axial rib diplopore (1.211) on axial rib (1.21), axial rib diplopore (1.211) on the gate flap diplopore (5.21) of the second gate flap (5.2) and axial rib (1.21) be over against, 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.

2. double leaf damper according to claim 1, is characterized in that: axial rib (1.21) top is arc surface, and 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).

3. double leaf damper according to claim 1 and 2, 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; The first gate flap (5.1) is designed to arc surface towards side and the cylinder inboard wall contact site of the first annular seal space (4.1), forms a tip-angled shape.

4. double leaf 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 increasing.

5. double leaf damper according to claim 3, 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 increasing.