CN105020257A - Damping revolving shaft mechanism with seal self-compensation capability - Google Patents
Damping revolving shaft mechanism with seal self-compensation capability Download PDFInfo
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- CN105020257A CN105020257A CN201410165122.6A CN201410165122A CN105020257A CN 105020257 A CN105020257 A CN 105020257A CN 201410165122 A CN201410165122 A CN 201410165122A CN 105020257 A CN105020257 A CN 105020257A
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- pin bushing
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Abstract
The invention discloses a damping revolving shaft mechanism with seal self-compensation capability. The damping revolving shaft mechanism comprises a revolving shaft, a guide sleeve, a shell and blades, wherein the shell is connected with a thread of the guide sleeve, the guide sleeve and the revolving shaft are arranged in the shell, and an inner cavity of the shell is divided into a first cavity and a second cavity by virtue of the guide sleeve; the guide sleeve is provided with a first passage communicated with the first cavity and the second cavity, the blades are movably arranged on the guide sleeve, and the blades are positioned on one side, close to the second cavity, of the first passage and used for closing or opening the first passage; the blades are assembled on the inner wall surface of the shell in an annular or arc-shaped cooperation manner, and the blades are provided with first deformable thin walls; when the blades move towards the second cavity, and the first thin walls deform towards the inner wall surface of the shell. By virtue of a self-compensation structure, when a fit clearance between the parts becomes larger, the clearance caused by the mechanical wear can be automatically compensated, so that the damping revolving shaft mechanism can keep a stable state for a long time, and the purpose of prolonging the service life of the damping revolving shaft mechanism is achieved.
Description
Technical field
The present invention relates to a kind of Damping rotation shaft mechanism, particularly relate to a kind of realize a direction ease rotation, opposite direction damping rotary and have sealing auto-compensation Damping rotation shaft mechanism.
Background technique
Rotary connector is widely used in multiple field, such as may be used for lavatory lid, refrigerator door, phone cover and cupboard door etc.Early stage rotary connector does not have damping function, such as, when being used on lavatory lid, lavatory lid open or cover under process in, any resistance is not set, when so easily causing lavatory lid to put down, easily beats in toilet main body heavyly, both easily damaged the connected portion between lavatory lid and toilet main body, also easily lavatory lid or toilet main body had been broken.Thus, a kind of rotary connector of Damping rotation shaft mechanism just arises at the historic moment, an important feature of this Damping rotation shaft mechanism, utilize blade to realize the effect of one-way valve, when this Damping rotation shaft mechanism rotates towards a direction, the central core of circulation of damping oil is closed by the blade of Damping rotation shaft mechanism, damping oil can only be passed through by the gap between the parts between two cavitys, thus when damping oil flows to another cavity from a cavity, flowing slowly, define the rotating effect of resistance (i.e. damping), when Damping rotation shaft mechanism rotates in the opposite direction, damping oil central core of circulation can not be closed by blade, damping oil passes through from the gap between central core of circulation and parts, thus flows faster when damping oil flows to a described cavity from another cavity described, define unresisted quick rotation effect.This Damping rotation shaft mechanism is when realizing damping rotary, the flow channel of damping oil is the gap between parts, and Damping rotation shaft mechanism is in long using process, inevitably cause mechanical wear, make the cooperation gap between parts become large, when the gap when between parts increases, the sealing between two cavitys will be made to die down, thus the damping of Damping rotation shaft mechanism is deteriorated, time during damping rotary shortens, and even damping function lost efficacy.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, one is provided to have the self-compensating Damping rotation shaft mechanism of sealing, by the setting of self-compensating structure, can matching gap between the parts when becoming large, the gap that auto-compensation produces because of mechanical wear, thus make Damping rotation shaft mechanism remain on a stable state for a long time, reach the object extending Damping rotation shaft mechanism working life.
The technical solution adopted for the present invention to solve the technical problems is: one has the self-compensating Damping rotation shaft mechanism of sealing, comprises rotating shaft, guide pin bushing, shell and blade; Shell has a cavity; Guide pin bushing is actively set in rotating shaft, is combined with a section of guide pin bushing and is contained in the cavity of shell and forms sealed internal chamber in rotating shaft; Be filled with damping oil in described sealed internal chamber, and be separated into the first cavity and the second cavity by guide pin bushing; Guide pin bushing is provided with the first passage of connection two cavitys; Described blade activity is contained on guide pin bushing, and be in first passage by the second cavity side with close or open this first passage; Described guide pin bushing is provided with outside thread, the cavity wall of described shell is provided with one section of internal thread, and described guide pin bushing rotatable engagement at the internal thread place of shell, and is provided with rotation prevention structure between guide pin bushing and rotating shaft, when making shell rotation forward and reverse relative to rotating shaft, guide pin bushing is allowed to reciprocate along the axis of rotating shaft; Described blade in the form of a ring or arc shape be engaged in the internal face place of shell, blade is provided with can the first thin-walled of deformation, and when blade moves to the second cavity direction, the first thin-walled is to the direction deformation of shell internal face.
The inwall of described guide pin bushing matches with the outer wall of rotating shaft, and being provided with at the inwall place of one end by the second cavity of guide pin bushing can the second thin-walled of deformation, and when guide pin bushing moves to the second cavity direction, the second thin-walled is to the outer wall direction deformation of rotating shaft.
First thin-walled place of described blade is provided with the first cavity be close to mutually with the first thin-walled, the recess of the first cavity of described blade is towards the second cavity direction, when blade is moved to the second cavity direction, the first thin-walled opens by the effect of damping oil pressure by the recess of its first cavity laterally.
Second thin-walled place of described guide pin bushing is provided with the second cavity be close to mutually with the second thin-walled, the recess of the second cavity of described guide pin bushing is towards the second cavity direction, when guide pin bushing is moved to the second cavity direction, the second thin-walled opens by the effect of damping oil pressure by the recess of its second cavity laterally.
Described blade or be also provided with oily passage between blade and guide pin bushing.
Described blade is made up of the monomer of at least two camber shapes, and each monomer surrounds circle or surrounds circular to be engaged in the internal face place of shell in the form of a ring together with the convex body of guide pin bushing.
The sectional shape of described monomer is V-shaped, U-shaped, E font, T-shaped, W font or C font.
The oily passage of described mistake is the first through hole along axial direction be arranged on blade.
The oily channel setting of described mistake is between blade and guide pin bushing, and this crosses oily passage is be located at the breach at least one monomer of blade, and breach and guide pin bushing surrounded oily passage.
The oily channel setting of described mistake is between blade and guide pin bushing, and this is crossed oily passage and comprises fitting surface in the integrated groove of employing of at least one end of at least one monomer being located at blade and the convex body of guide pin bushing, and described fitting surface is inclined-plane.
Described first passage is located at guide pin bushing outside thread place, has preset gap between this guide pin bushing outside thread and shell internal thread.
Described first passage is the first fluting along hand of spiral that guide pin bushing outside thread is arranged.
Described rotation prevention structure comprise be arranged on rotating shaft outer wall place and be along axial direction the first convex tendon and be arranged on guide pin bushing inwall place and be the second recessed channel along axial direction, described first convex tendon matches with described second recessed channel.
Further, be also provided with the second channel for being communicated with two cavitys between the first cavity with the second cavity, the cross section of described second channel is that reducing is arranged, and is state of changing to make damping oil in the amount of flow of second channel.
Described second channel is arranged between guide pin bushing and rotating shaft.
Described rotating shaft has the axle core of diameter change gradually, this gradually the axle core of diameter change and described guide pin bushing surround described second channel, the diameter of the axle core of described diameter change gradually by the one end by the first cavity to the one end by the second cavity in gradually increasing.
Described rotating shaft has the axle core of sudden change diameter, and axle core and the described guide pin bushing of this sudden change diameter surround described second channel, and the diameter of the axle core of described sudden change diameter is increased in sudden change to the one end by the second cavity by the one end by the first cavity.
Described rotating shaft is provided with the gradually change second fluting axially, this second fluting gradually changed surrounds described second channel with described guide pin bushing, and the sectional area of described the second fluting gradually changed is by leaning on one end of the first cavity to the one end by the second cavity in gradually reducing.
Described rotating shaft is provided with the 3rd fluting of gradient-structure axially, 3rd fluting of this gradient-structure surrounds described second channel with described guide pin bushing, and the sectional area of the 3rd fluting of described gradient-structure is reduced to the one end by the second cavity in gradient by the one end by the first cavity.
Described second channel is arranged between guide pin bushing and shell.
Described shell has the cavity gradually changing internal diameter, this changes the chamber wall of the cavity of internal diameter gradually and described guide pin bushing surrounds described second channel, the described internal diameter gradually changing the cavity of internal diameter by the one end by the first cavity to the one end by the second cavity in gradually reducing.
Described shell has the cavity of sudden change internal diameter, and chamber wall and the described guide pin bushing of the cavity of this sudden change internal diameter surround described second channel, and the internal diameter of the cavity of described sudden change internal diameter is that sudden change is reduced by the one end by the first cavity to leaning on one end of the second cavity.
The 4th fluting gradually changed axially is provided with in the chamber wall of the cavity of described shell, this the 4th fluting gradually changed surrounds described second channel with described guide pin bushing, and described the 4th fluting gradually changed is by leaning on one end of the first cavity to the one end by the second cavity in gradually reducing.
The 5th fluting of gradient-structure is axially provided with in the chamber wall of the cavity of described shell, 5th fluting of this gradient-structure surrounds described second channel with described guide pin bushing, and the 5th fluting of described gradient-structure is reduced to the one end by the second cavity in gradient by the one end by the first cavity.
The internal thread of described shell is provided with the 6th fluting gradually changed along hand of spiral, this gradually change the 6th fluting with described guide pin bushing surround described second channel, described gradually change the 6th fluting by by the first cavity one end to by the second cavity one end helically formula gradually reduce.
One of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, that thin walled structures is set on guide pin bushing, blade to play auto-compensation, thin-walled on blade, guide pin bushing coordinates to shell, fitting surface that rotating shaft is relevant respectively, under the effect of the pressure, can do small deformation.When shell is relative to axis of rotation, shell drives guide pin bushing and blade to move reciprocatingly by screw mechanism, in damping state, shell rotates towards a direction relative to rotating shaft, guide pin bushing is moved to the second cavity direction, the space of the second cavity progressively diminishes, damping oil pressure increase in second cavity, simultaneously, the space of the first cavity progressively becomes large, damping oil pressure in first cavity reduces, be stressed poor effect, the damping oil of the second cavity will to the first cavity flowing, the damping oil of flowing can push blade to first passage mouth, first passage is closed by blade, on the other hand, oil pressure becomes large damping oil and enters the first cavity, first thin-walled then opens by the effect of damping oil pressure by the recess of the first cavity laterally, make the first thin-walled to the direction deformation of shell internal face, thus the gap formed between blade and shell because of mechanical wear after long-time use can be compensated, same, oil pressure becomes large damping oil and also enters the second cavity, second thin-walled then opens by the effect of damping oil pressure by the recess of the second cavity laterally, make the second thin-walled to the outer wall direction deformation of rotating shaft, thus the gap formed between rotating shaft and guide pin bushing because of mechanical wear after long-time use can be compensated, like this, the damping oil being flowed to the first cavity by the second cavity can only by the oily passage of the mistake of blade, or the oily passage of mistake between blade and guide pin bushing, or the gap preset between the blade of size and shell and/or the Clearance Flow between rotating shaft and guide pin bushing, make in Long-Time Service, damping oil in damping process all can keep constant flow, thin walled structures is namely utilized to produce deformation, reach self-compensating effect.Shell rotates in the opposite direction relative to rotating shaft, guide pin bushing is moved to the first cavity direction, the space of the first cavity progressively diminishes, damping oil pressure increase in first cavity, simultaneously, the space of the second cavity progressively becomes large, damping oil pressure in second cavity reduces, be stressed poor effect, the damping oil of the first cavity will to the second cavity flowing, blade can be pushed away first passage mouth by the damping oil of flowing, blade makes first passage open, damping oil quick pressure releasing, namely, damping oil flows to the second cavity from the first cavity rapidly, now, due to the first cavity, damping oil pressure in second cavity is less, self-compensating structure is inoperative, thus reach the effect not having damping when shell rotates in the opposite direction.Blade is reciprocating on guide pin bushing, is equivalent to one-way valve.
Compared with prior art, the invention has the beneficial effects as follows:
1, owing to present invention employs, be provided with on blade can the first thin-walled of deformation, guide pin bushing is provided with can the second thin-walled of deformation, be close to mutually at the first thin-walled and be provided with the first cavity, be close to mutually at the second thin-walled and be provided with the second cavity, and the first cavity, the recess of the second cavity be set as specifically towards, the fitting surface that first thin-walled is relevant to shell coordinates, the fitting surface that second thin-walled is relevant to rotating shaft coordinates, above-mentioned self compensation mechanism, can in damping state, make the first thin-walled to the direction deformation of shell internal face, make the second thin-walled to the outer wall direction deformation of rotating shaft, thus can the gap that produces because of mechanical wear of auto-compensation, Damping rotation shaft mechanism is made to remain on a stable state for a long time, reach the object extending Damping rotation shaft mechanism working life.
2, form owing to present invention employs monomer blade being arranged at least two camber shapes, each monomer surrounds circular to be engaged in the internal face place of shell in the form of a ring together with the convex body of guide pin bushing, and adopt one-body molded mode that groove is set at least one end of at least one monomer of blade, and the fitting surface of the convex body of groove and guide pin bushing is matched formed oily passage, and fitting surface is inclined-plane, can make when vanes close first passage mouth, the sectional area crossing oily passage is less, and when blade opens first passage mouth, the sectional area crossing oily passage is larger, thus effectively ensure that rotary shaft mechanism then slowly rotates in the opposite direction towards a direction quick rotation.
3, owing to present invention employs the second channel be also provided with between the first cavity with the second cavity for being communicated with two cavitys, and the cross section of described second channel is reducing setting, be state of changing to make damping oil in the amount of flow of second channel, this structure, can by pre-setting, make rotary shaft mechanism in slow rotation process, rhythm first quick and back slow can be divided into again, realize better using effect.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is embodiment one D structure decomposing schematic representation of the present invention;
Fig. 2 is embodiment one assembling of the present invention (being assemblied on lavatory lid) schematic diagram;
Fig. 3 is the schematic diagram of embodiment one the present invention when lavatory lid is opened completely;
Fig. 4 is the schematic diagram of embodiment one the present invention in lavatory lid closing process;
Fig. 5 is the schematic diagram of embodiment one the present invention when lavatory lid is closed completely;
Fig. 6 is the schematic diagram of embodiment one the present invention in lavatory lid opening procedure;
Fig. 7 is the organigram of embodiment one rotating shaft of the present invention;
Fig. 8 is the structure cutaway view of embodiment one rotating shaft of the present invention;
Fig. 9 is the organigram of embodiment one guide pin bushing of the present invention;
Figure 10 is the structure cutaway view of embodiment one guide pin bushing of the present invention;
Figure 11 is the organigram that embodiment one blade of the present invention matches with guide pin bushing;
Figure 12 is structure (top in figure is divided into blade open mode, and the bottom in figure the is divided into blade closed condition) sectional view that embodiment one blade of the present invention matches with guide pin bushing;
Figure 13 is the organigram of embodiment two rotating shaft of the present invention;
Figure 14 is the structure cutaway view of embodiment two rotating shaft of the present invention;
Figure 15 is the organigram of embodiment three rotating shaft of the present invention;
Figure 16 is the structure cutaway view of embodiment three rotating shaft of the present invention;
Figure 17 is the organigram of embodiment four rotating shaft of the present invention;
Figure 18 is the structure cutaway view of embodiment four rotating shaft of the present invention;
Figure 19 is the structure cutaway view of embodiment five shell of the present invention;
Figure 20 is the structure cutaway view of embodiment six shell of the present invention;
Figure 21 is the organigram of embodiment seven shell of the present invention;
Figure 22 is the structure cutaway view of embodiment seven shell of the present invention;
Figure 23 is the organigram of embodiment eight shell of the present invention;
Figure 24 is the structure cutaway view of embodiment eight shell of the present invention;
Figure 25 is the organigram of embodiment nine shell of the present invention;
Figure 26 is the organigram of embodiment ten guide pin bushing of the present invention;
Figure 27 is the structure cutaway view of embodiment ten guide pin bushing of the present invention;
Figure 28 is the organigram of embodiment 11 blade of the present invention;
Figure 29 is the structure cutaway view of embodiment 11 blade of the present invention;
Figure 30 is the organigram that embodiment 12 blade of the present invention matches with guide pin bushing;
Figure 31 is the structure cutaway view that embodiment 12 blade of the present invention matches with guide pin bushing.
Embodiment
Embodiment one
See shown in Fig. 1 to Figure 12, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, comprises rotating shaft 1, guide pin bushing 2, shell 3 and blade 4; Shell 3 is provided with a cavity, this cavity one end is set to opening, the other end is set to closed, guide pin bushing 2 is actively set in rotating shaft 1, be combined with a section of guide pin bushing 2 in rotating shaft 1 to be contained in the cavity of shell and to make described cavity form sealed internal chamber, one end of rotating shaft 1 is stretched in the cavity of shell 3, one end of shell countershaft 1 is utilized to support, rotating shaft 1 part being in cavity hatch place is then supported by welding lid 51, cavity hatch place utilizes seal ring 52 to realize sealing, thus makes the cavity of shell form sealed internal chamber; Be filled with damping oil in described sealed internal chamber, described sealed internal chamber is separated into the first cavity 31 and the second cavity 32 by guide pin bushing 2; Guide pin bushing 2 is provided with the first passage of connection two cavitys; The activity of described blade 4 is contained on guide pin bushing 2, and is in the side by the second cavity of first passage, closes or open this first passage by close or away from first passage mouth mode; Described guide pin bushing 2 is provided with outside thread 21, the cavity wall of described shell 3 is provided with one section of internal thread 33, described guide pin bushing 2 rotatable engagement is at internal thread 33 place of shell 3, and be provided with rotation prevention structure between guide pin bushing 2 and rotating shaft 1, when making shell 3 rotation forward and reverse relative to rotating shaft, guide pin bushing 2 is allowed to reciprocate along the axis of rotating shaft 1; Described blade 4 in the form of a ring or arc shape be engaged in the internal face place of the sealed internal chamber of shell 3, blade 4 is provided with can the first thin-walled 41 of deformation, and when blade 4 moves to the second cavity 32 direction, the first thin-walled 41 is to the direction deformation of shell internal face.
The inwall of described guide pin bushing 2 matches with the outer wall of rotating shaft 1, and being provided with at the inwall place of one end by the second cavity of guide pin bushing 2 can the second thin-walled 22 of deformation, and when guide pin bushing 2 moves to the second cavity 32 direction, the second thin-walled 22 is to the outer wall direction deformation of rotating shaft 1.
First thin-walled 41 place of described blade 4 is provided with the first cavity 42 be close to mutually with the first thin-walled, the recess of the first cavity 42 of described blade is towards the second cavity direction, when blade 4 is moved to the second cavity direction, the first thin-walled 41 opens by the effect of damping oil pressure by the recess of its first cavity 42 laterally.
Second thin-walled 22 place of described guide pin bushing is provided with the second cavity 23 be close to mutually with the second thin-walled, the recess of the second cavity 23 of described guide pin bushing is towards the second cavity direction, when guide pin bushing 2 is moved to the second cavity direction, the second thin-walled 22 opens by the effect of damping oil pressure by the recess of its second cavity 23 laterally.
Described blade or be also provided with oily passage between blade and guide pin bushing.
Described blade 4 is made up of the monomer 40 of at least two camber shapes, and each monomer surrounds circle or surrounds circular to be engaged in the internal face place of shell in the form of a ring together with the convex body 24 of guide pin bushing 2.
In the present embodiment, blade 4 is made up of the monomer 40 of two camber shapes, the monomer 40 of two camber shapes can be designed to just surround a circle, also can be as in the present embodiment, guide pin bushing 2 arranges two convex bodys 24, two convex bodys 24 of the monomer 40 of two camber shapes and guide pin bushing 2 are surrounded a circle jointly, to be engaged in the internal face place of shell 3 in the form of a ring.
The sectional shape of the monomer of the present embodiment is V-shaped, according to designing requirement, also can be designed to U-shaped, E font, T-shaped, other shapes such as W font or C font, or also can make an entirety.
The oily channel setting of described mistake is between blade 4 and guide pin bushing 2, and this is crossed oily passage and comprises fitting surface 241 in the integrated groove 43 of employing of at least one end of at least one monomer being located at blade and the convex body 24 of guide pin bushing, and described fitting surface 241 is inclined-plane.
Described first passage is located at guide pin bushing outside thread place, has preset gap 61 between this guide pin bushing outside thread 21 and shell internal thread 33, and in fact exactly guide pin bushing outside thread is designed to there is gap 61 with shell internal thread 33, this gap 61 defines first passage.
Described rotation prevention structure comprise be arranged on rotating shaft 1 outer wall place and be along axial direction the first convex tendon 11 and be arranged on guide pin bushing 2 inwall place and be the second recessed channel 25 along axial direction, described first convex tendon 11 matches with described second recessed channel 25.
Further, be also provided with the second channel for being communicated with two cavitys between the first cavity 31 with the second cavity 32, the cross section of described second channel is that reducing is arranged, and is state of changing to make damping oil in the amount of flow of second channel.
Described second channel is arranged between guide pin bushing and rotating shaft.
Described rotating shaft 1 has the axle core 12 of diameter change gradually, the axle core 12 of this diameter change gradually surrounds described second channel with described guide pin bushing 2, the diameter of the axle core 12 of described diameter change gradually by the one end by the first cavity to the one end by the second cavity in gradually increasing.
One of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be mounted between lavatory lid and toilet pedestal, lavatory lid comprises seat ring 53 and upper cover 54, can relatively rotate between shell 3 of the present invention and rotating shaft 1, therefore, only shell 3 need be connected with lavatory lid with one of them in rotating shaft 1, shell 3 and wherein another and the toilet pedestal in rotating shaft 1 be fixed, just can realize lavatory lid and rotate relative to toilet pedestal.
One of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, that thin walled structures is set on guide pin bushing 2, blade 4 to play auto-compensation, thin-walled on blade 4, guide pin bushing 2 coordinates to shell 3, fitting surface that rotating shaft 1 is relevant respectively, under the effect of the pressure, can do small deformation.When shell 3 is relative to axis of rotation, shell 3 drives guide pin bushing 2 and blade 4 to move reciprocatingly by screw mechanism, in the state that falls slowly, shell 3 rotates towards a direction relative to rotating shaft, guide pin bushing 2 is moved to the second cavity 32 direction, the space of the second cavity 32 progressively diminishes, damping oil pressure increase in second cavity 32, simultaneously, the space of the first cavity 31 progressively becomes large, damping oil pressure in first cavity 31 reduces, be stressed poor effect, the damping oil of the second cavity 32 will flow to the first cavity 31, blade 4 can be pushed to first passage mouth (i.e. one end port in gap 61) by the damping oil of flowing, first passage is closed by blade 4, on the other hand, oil pressure becomes large damping oil and enters the first cavity 42, first thin-walled 41 then opens by the effect of damping oil pressure by the recess of the first cavity 42 laterally, make the first thin-walled 41 to the direction deformation of shell internal face, thus the gap formed between blade and shell because of mechanical wear after long-time use can be compensated, same, oil pressure becomes large damping oil and also enters the second cavity 23, second thin-walled 22 then opens by the effect of damping oil pressure by the recess of the second cavity 23 laterally, make the second thin-walled 22 to the fitting surface direction deformation of rotating shaft, thus the gap formed between rotating shaft and guide pin bushing because of mechanical wear after long-time use can be compensated, like this, the damping oil being flowed to the first cavity 31 by the second cavity 32 can only by the oily passage of the mistake of blade 4, or the oily passage of mistake between blade and guide pin bushing, or the gap preset between the blade of size and shell and/or the Clearance Flow between rotating shaft and guide pin bushing, make in Long-Time Service, slowly the damping oil fallen in process all can keep constant flow, thin walled structures is namely utilized to produce deformation, reach self-compensating effect.Shell 3 rotates in the opposite direction relative to rotating shaft, guide pin bushing 2 is moved to the first cavity 31 direction, the space of the first cavity 31 progressively diminishes, damping oil pressure increase in first cavity 31, simultaneously, the space of the second cavity 32 progressively becomes large, damping oil pressure in second cavity 32 reduces, be stressed poor effect, the damping oil of the first cavity 31 will flow to the second cavity 32, blade 4 can be pushed away first passage mouth (i.e. one end port in gap 61) by the damping oil of flowing, blade 4 makes first passage open, damping oil quick pressure releasing, namely, damping oil flows to the second cavity 32 from the first cavity 31 rapidly, now, due to the first cavity, damping oil pressure in second cavity is less, self-compensating structure is inoperative, thus reach the effect reducing resistance when cover plate is opened.Blade is reciprocating on guide pin bushing, is equivalent to one-way valve.
Because rotating shaft and shell can relatively rotate, therefore, also can be designed to allow axis of rotation, and shell be motionless, equally, guide pin bushing can be allowed to move back and forth in the enclosure.
Present invention employs monomer blade being arranged to two camber shapes to form, two monomers 40 surround circular to be engaged in the internal face place of shell in the form of a ring together with the convex body 24 of guide pin bushing, and adopt one-body molded mode that groove 43 is set at least one end of at least one monomer of blade 4, and the fitting surface 241 of the convex body 24 of groove 43 and guide pin bushing is matched formed oily passage, and fitting surface is inclined-plane, can make when blade 4 closes first passage mouth, the sectional area crossing oily passage 62 (as shown in figure 12) is less, and when blade 4 opens first passage mouth, the sectional area crossing oily passage 63 (as shown in figure 12) is larger, thus effectively ensure that the fast of cover plate rises to fall slowly.
One of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, have employed the second channel be provided with between the first cavity 31 with the second cavity 32 for being communicated with two cavitys, and the cross section of second channel is reducing arranges, be state of changing to make damping oil in the amount of flow of second channel.Rotating shaft 1 of the present invention has the axle core 12 of diameter change gradually, the axle core 12 of this diameter change gradually surrounds described second channel with described guide pin bushing 2, the described diameter gradually changing the axle core 12 of internal diameter by the one end by the first cavity to the one end by the second cavity in gradually increasing.Like this, the sectional area of second channel is just from the one end by the first cavity to leaning on one end of the second cavity in gradually reducing, when cover plate starts to fall, the sectional area of second channel is maximum, damping oil in second cavity 32 will flow fast to the first cavity 31, the resistance that cover plate falls is very little, along with cover plate continues to fall, the sectional area of second channel diminishes gradually, the resistance that cover plate falls also becomes large gradually, during to the latter stage that cover plate falls, the resistance that cover plate falls is also maximum, the effect thus formation cover plate falls preferably slowly.
Embodiment two
See shown in Figure 13 to Figure 14, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment one, rotating shaft 1 does not adopt the axle core of diameter change gradually, but rotating shaft 1 has the axle core 13 of sudden change diameter, axle core 13 and the described guide pin bushing 2 of this sudden change diameter surround described second channel, and the diameter of the axle core 13 of described sudden change diameter is increased in sudden change to the one end by the second cavity by the one end by the first cavity.
Embodiment three
See shown in Figure 15 to Figure 16, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment one, rotating shaft 1 does not adopt the axle core of diameter change gradually, but rotating shaft 1 is provided with the gradually change second fluting 14 axially, second fluting 14 is located on the first convex tendon 11, certainly, also can be located on axle core, this second fluting 14 gradually changed surrounds described second channel with described guide pin bushing 2, and described the second fluting 14 gradually changed is by leaning on one end of the first cavity to the one end by the second cavity in gradually reducing.
Embodiment four
See shown in Figure 17 to Figure 18, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment one, rotating shaft 1 does not adopt the axle core of diameter change gradually, but rotating shaft 1 is provided with the 3rd fluting 15 of gradient-structure axially, 3rd fluting 15 is located on the first convex tendon 11, certainly, also can be located on axle core, 3rd fluting 15 of this gradient-structure surrounds described second channel with described guide pin bushing 2, and the 3rd fluting 15 of described gradient-structure is reduced to the one end by the second cavity in gradient by the one end by the first cavity.
Embodiment five
Shown in Figure 19, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment one, described second channel is also arranged between guide pin bushing and shell, like this, the structure of shell is just different from embodiment one, shell 3 has the cavity 34 gradually changing internal diameter, this changes the chamber wall of the cavity 34 of internal diameter gradually and described guide pin bushing 2 surrounds described second channel, the described internal diameter gradually changing the cavity 34 of internal diameter by the one end by the first cavity to the one end by the second cavity in gradually reducing.The present embodiment, there are two second channels, one is surrounded with described guide pin bushing 2 by the axle core 12 gradually changing internal diameter, another is surrounded by the chamber wall of the cavity 34 gradually changing internal diameter and described guide pin bushing 2, certainly, also can be only have one, such as, only have the chamber wall of the cavity 34 gradually changing internal diameter and described guide pin bushing 2 to surround second channel, like this, rotating shaft just makes the internal diameter of formed objects into.
Embodiment six
Shown in Figure 20, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment five, shell is not adopt the cavity gradually changing internal diameter, but shell 3 has the cavity 35 of sudden change internal diameter, chamber wall and the described guide pin bushing 2 of the cavity 35 of this sudden change internal diameter surround described second channel, and the internal diameter of the cavity 35 of described sudden change internal diameter is that sudden change is reduced by the one end by the first cavity to the one end by the second cavity.
Embodiment seven
See shown in Figure 21 to Figure 22, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment five, shell is not adopt the cavity gradually changing internal diameter, but the gradually change the 4th fluting 36 be provided with in the chamber wall of the cavity of shell 3 axially, this the 4th fluting 36 gradually changed surrounds described second channel with described guide pin bushing 2, and described the 4th fluting 36 gradually changed is by leaning on one end of the first cavity to the one end by the second cavity in gradually reducing.
Embodiment eight
See shown in Figure 23 to Figure 24, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment five, shell is not adopt the cavity gradually changing internal diameter, but in the chamber wall of the cavity of shell 3, be provided with the 5th fluting 37 of gradient-structure axially, 5th fluting 37 of this gradient-structure surrounds described second channel with described guide pin bushing 2, and the 5th fluting 37 of described gradient-structure is reduced to the one end by the second cavity in gradient by the one end by the first cavity.
Embodiment nine
Ginseng as shown in Figure 25, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment five, shell is not adopt the cavity gradually changing internal diameter, but be provided with the gradually change the 6th fluting 38 along hand of spiral at the internal thread 33 of shell, this gradually change the 6th fluting 38 with described guide pin bushing 2 surround described second channel, described gradually change the 6th fluting 38 by by the first cavity one end to by the second cavity one end helically formula gradually reduce.
Embodiment ten
See shown in Figure 26 to Figure 27, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, is with the difference of embodiment one, and described first passage is the first fluting 26 along hand of spiral that guide pin bushing outside thread 21 is arranged
Embodiment 11
See shown in Figure 28 to Figure 29, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, and be with the difference of embodiment one, the oily passage of described mistake is the first through hole 44 along axial direction be arranged on blade.
Embodiment 12
See shown in Figure 30 to Figure 31, one of the present invention has the self-compensating Damping rotation shaft mechanism of sealing, be with the difference of embodiment one, the oily channel setting of described mistake is between blade and guide pin bushing, this crosses oily passage is the breach 45 be located at least one monomer of blade 4, and breach 45 and guide pin bushing surrounded oily passage.
In conjunction with above-described embodiment, arranging of second channel can be located at separately between guide pin bushing and rotating shaft, also can be located at separately between guide pin bushing and shell; Equally, second channel also all can have setting between guide pin bushing and rotating shaft and between guide pin bushing and shell, and such as, rotating shaft adopts the axle core of sudden change internal diameter, and shell adopts the cavity gradually changing internal diameter; For another example, rotating shaft is provided with the gradually change second fluting axially, is provided with the 5th fluting of gradient-structure axially in the chamber wall of the cavity of shell; Etc., the situation of various combined crosswise is all fine.
It should be noted that, the present invention has application area comparatively widely, can on lavatory lid, also can be applied on the products such as various door/lids such as refrigerator door, phone cover and cupboard door, can also for drawer, this is because the present invention's employing is allow damping oil along the axial motion of rotating shaft, being compared to and allowing damping oil can form longer stroke along the circumferential movement of rotating shaft, is the rotation transform linear motion of drawer being become rotating shaft during use.
Above-described embodiment is only used for further illustrating one of the present invention and has the self-compensating Damping rotation shaft mechanism of sealing; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection domain of technical solution of the present invention.
Claims (15)
1. there is the self-compensating Damping rotation shaft mechanism of sealing, comprise rotating shaft, guide pin bushing, shell and blade; Shell has a cavity; Guide pin bushing is actively set in rotating shaft, is combined with a section of guide pin bushing and is contained in the cavity of shell and forms sealed internal chamber in rotating shaft; Be filled with damping oil in described sealed internal chamber, and be separated into the first cavity and the second cavity by guide pin bushing; Guide pin bushing is provided with the first passage of connection two cavitys; Described blade activity is contained on guide pin bushing, and be in first passage by the second cavity side with close or open this first passage; It is characterized in that: described guide pin bushing is provided with outside thread, the cavity wall of described shell is provided with one section of internal thread, described guide pin bushing rotatable engagement is at the internal thread place of shell, and be provided with rotation prevention structure between guide pin bushing and rotating shaft, when making shell rotation forward and reverse relative to rotating shaft, guide pin bushing is allowed to reciprocate along the axis of rotating shaft; Described blade in the form of a ring or arc shape be engaged in the internal face place of shell, blade is provided with can the first thin-walled of deformation, and when blade moves to the second cavity direction, the first thin-walled is to the direction deformation of shell internal face.
2. according to claim 1 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: the inwall of described guide pin bushing matches with the outer wall of rotating shaft, being provided with at the inwall place of one end by the second cavity of guide pin bushing can the second thin-walled of deformation, when guide pin bushing moves to the second cavity direction, the second thin-walled is to the outer wall direction deformation of rotating shaft.
3. according to claim 2 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: the first thin-walled place of described blade is provided with the first cavity be close to mutually with the first thin-walled, the recess of the first cavity of described blade is towards the second cavity direction, when blade is moved to the second cavity direction, the first thin-walled opens by the effect of damping oil pressure by the recess of its first cavity laterally; Second thin-walled place of described guide pin bushing is provided with the second cavity be close to mutually with the second thin-walled, the recess of the second cavity of described guide pin bushing is towards the second cavity direction, when guide pin bushing is moved to the second cavity direction, the second thin-walled opens by the effect of damping oil pressure by the recess of its second cavity laterally.
4. according to claim 1 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: described blade or be also provided with oily passage between blade and guide pin bushing; Described blade is made up of the monomer of at least two camber shapes, and each monomer surrounds circle or surrounds circular to be engaged in the internal face place of shell in the form of a ring together with the convex body of guide pin bushing.
5. according to claim 4 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: the sectional shape of described monomer is V-shaped, U-shaped, E font, T-shaped, W font or C font.
6. according to claim 4 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: the oily passage of described mistake is the first through hole along axial direction be arranged on blade; Or the oily passage of described mistake comprises the breach at least one monomer being located at blade, and breach and guide pin bushing surrounded oily passage; Or the oily passage of described mistake comprises the fitting surface in the integrated groove of employing of at least one end of at least one monomer being located at blade and the convex body of guide pin bushing, and described fitting surface is inclined-plane.
7. according to claim 1 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: described first passage is located at guide pin bushing outside thread place, have preset gap between this guide pin bushing outside thread and shell internal thread; Or described first passage is the first fluting along hand of spiral that guide pin bushing outside thread is arranged.
8. according to claim 1 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: described rotation prevention structure comprise be arranged on rotating shaft outer wall place and be along axial direction the first convex tendon and be arranged on guide pin bushing inwall place and be the second recessed channel along axial direction, described first convex tendon matches with described second recessed channel.
9. according to claim 1 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: further, the second channel for being communicated with two cavitys is also provided with between the first cavity with the second cavity, the cross section of described second channel is that reducing is arranged, and is state of changing to make damping oil in the amount of flow of second channel.
10. according to claim 9 have the self-compensating Damping rotation shaft mechanism of sealing, it is characterized in that: described second channel is arranged between guide pin bushing and rotating shaft.
11. according to claim 10 have sealing self-compensating Damping rotation shaft mechanism, it is characterized in that: described rotating shaft has the axle core of change gradually or sudden change diameter, this changes gradually or the axle core of the diameter that suddenlys change and described guide pin bushing surround described second channel, the diameter of the axle core of described change gradually or sudden change diameter by the one end by the first cavity to the one end by the second cavity in gradually to increase or sudden change increases.
12. according to claim 10 have sealing self-compensating Damping rotation shaft mechanism, it is characterized in that: described rotating shaft is provided with the gradually change second fluting axially, this second fluting gradually changed surrounds described second channel with described guide pin bushing, and the sectional area of described the second fluting gradually changed is by leaning on one end of the first cavity to the one end by the second cavity in gradually reducing; Or, described rotating shaft is provided with the 3rd fluting of gradient-structure axially, 3rd fluting of this gradient-structure surrounds described second channel with described guide pin bushing, and the sectional area of the 3rd fluting of described gradient-structure is reduced to the one end by the second cavity in gradient by the one end by the first cavity.
13. having according to claim 9 or 10 seal self-compensating Damping rotation shaft mechanism, it is characterized in that: described second channel is arranged between guide pin bushing and shell.
14. according to claim 13 have sealing self-compensating Damping rotation shaft mechanism, it is characterized in that: described shell has the cavity of change gradually or sudden change internal diameter, this changes gradually or the chamber wall of cavity of the internal diameter that suddenlys change and described guide pin bushing surround described second channel, and the internal diameter of the cavity of described change gradually or sudden change internal diameter is reduced in gradually reducing or suddenling change to the one end by the second cavity by the one end by the first cavity.
15. according to claim 13 have sealing self-compensating Damping rotation shaft mechanism, it is characterized in that: in the chamber wall of the cavity of described shell, be provided with the 4th fluting gradually changed axially, this the 4th fluting gradually changed surrounds described second channel with described guide pin bushing, and described the 4th fluting gradually changed is by leaning on one end of the first cavity to the one end by the second cavity in gradually reducing; Or, the 5th fluting of gradient-structure is axially provided with in the chamber wall of the cavity of described shell, 5th fluting of this gradient-structure surrounds described second channel with described guide pin bushing, and the 5th fluting of described gradient-structure is reduced to the one end by the second cavity in gradient by the one end by the first cavity; Or, the internal thread of described shell is provided with the 6th fluting gradually changed along hand of spiral, this gradually change the 6th fluting with described guide pin bushing surround described second channel, described gradually change the 6th fluting by by the first cavity one end to by the second cavity one end helically formula gradually reduce.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165122.6A CN105020257B (en) | 2014-04-23 | 2014-04-23 | One kind, which has, seals self-compensating Damping rotation shaft mechanism |
| PCT/CN2015/077186 WO2015161797A1 (en) | 2014-04-23 | 2015-04-22 | Damping rotating shaft mechanism with self-compensating seal and toilet cover having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165122.6A CN105020257B (en) | 2014-04-23 | 2014-04-23 | One kind, which has, seals self-compensating Damping rotation shaft mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105020257A true CN105020257A (en) | 2015-11-04 |
| CN105020257B CN105020257B (en) | 2018-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410165122.6A Active CN105020257B (en) | 2014-04-23 | 2014-04-23 | One kind, which has, seals self-compensating Damping rotation shaft mechanism |
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| Country | Link |
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| CN (1) | CN105020257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006158A (en) * | 2018-01-12 | 2018-05-08 | 温州瓯海利尔达五金制品有限公司 | A kind of one-way damper |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061694A (en) * | 2000-08-21 | 2002-02-28 | Tok Bearing Co Ltd | Shaft supporting device for rotary damper |
| CN2796631Y (en) * | 2005-05-31 | 2006-07-19 | 陈贤生 | Slow falling device of stool cover board |
| JP2009222096A (en) * | 2008-03-14 | 2009-10-01 | Nidec Sankyo Corp | Self-support device |
| CN201899438U (en) * | 2010-12-24 | 2011-07-20 | 王湘冀 | Cover plate slowly-falling rotating shaft |
| CN202732825U (en) * | 2012-06-20 | 2013-02-13 | 通达(厦门)科技有限公司 | Structure of large torque damper |
| CN102920390A (en) * | 2012-09-18 | 2013-02-13 | 台州市信恩洁具配件有限公司 | Metal buffering hinge for toilet lid |
| CN203835945U (en) * | 2014-04-23 | 2014-09-17 | 王湘冀 | Damping rotating shaft mechanism with seal self-compensating function |
-
2014
- 2014-04-23 CN CN201410165122.6A patent/CN105020257B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061694A (en) * | 2000-08-21 | 2002-02-28 | Tok Bearing Co Ltd | Shaft supporting device for rotary damper |
| CN2796631Y (en) * | 2005-05-31 | 2006-07-19 | 陈贤生 | Slow falling device of stool cover board |
| JP2009222096A (en) * | 2008-03-14 | 2009-10-01 | Nidec Sankyo Corp | Self-support device |
| CN201899438U (en) * | 2010-12-24 | 2011-07-20 | 王湘冀 | Cover plate slowly-falling rotating shaft |
| CN202732825U (en) * | 2012-06-20 | 2013-02-13 | 通达(厦门)科技有限公司 | Structure of large torque damper |
| CN102920390A (en) * | 2012-09-18 | 2013-02-13 | 台州市信恩洁具配件有限公司 | Metal buffering hinge for toilet lid |
| CN203835945U (en) * | 2014-04-23 | 2014-09-17 | 王湘冀 | Damping rotating shaft mechanism with seal self-compensating function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006158A (en) * | 2018-01-12 | 2018-05-08 | 温州瓯海利尔达五金制品有限公司 | A kind of one-way damper |
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|---|---|
| CN105020257B (en) | 2018-08-31 |
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Effective date of registration: 20180711 Address after: No. 2, Haicang East Road, Fujian Province, Xiamen City, Fujian Applicant after: Xiamen Weidiya Precision Mould Plastic Co., Ltd. Address before: No. 2, Haicang East Road, Fujian Province, Xiamen City, Fujian Applicant before: Wang Xiangji |
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Effective date of registration: 20200519 Address after: Xiafei road in Haicang District of Xiamen city of Fujian Province, No. 2 361000 Patentee after: Li Feiyu Address before: Xiafei road in Haicang District of Xiamen city of Fujian Province, No. 2 361000 Patentee before: WDI (XIAMEN) PRECISION MOULD & PLASTICS Co.,Ltd. |
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Effective date of registration: 20200616 Address after: 361000 first floor, heavy workshop, No.2, Xiafei East Road, Haicang District, Xiamen City, Fujian Province Patentee after: Xiamen iridium Plastic Precision Mold Co., Ltd Address before: Xiafei road in Haicang District of Xiamen city of Fujian Province, No. 2 361000 Patentee before: Li Feiyu |