CN203835945U - Damping rotating shaft mechanism with seal self-compensating function - Google Patents
Damping rotating shaft mechanism with seal self-compensating function Download PDFInfo
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- CN203835945U CN203835945U CN201420200838.0U CN201420200838U CN203835945U CN 203835945 U CN203835945 U CN 203835945U CN 201420200838 U CN201420200838 U CN 201420200838U CN 203835945 U CN203835945 U CN 203835945U
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- guide pin
- pin bushing
- rotating shaft
- blade
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- 238000013016 damping Methods 0.000 title claims abstract description 124
- 238000007789 sealing Methods 0.000 claims description 43
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- 210000002435 tendon Anatomy 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 5
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a damping rotating shaft mechanism with the seal self-compensating function. The damping rotating shaft mechanism comprises a rotating shaft, a guide sleeve, an outer shell and a blade, wherein the outer shell is in threaded connection with the guide sleeve, the guide sleeve and the rotating shaft are installed in the outer shell, an inner cavity of the outer shell is partitioned into a first cavity body and a second cavity body through the guide sleeve, and a first channel communicated with the first cavity body and the second cavity body is formed in the guide sleeve; the blade is movably installed on the guide sleeve and located on one side, close to the second cavity body, of the first channel to close or open the first channel, the blade is matched on the inner wall face of the outer shell in an annular or arc-shaped mode and provided with a first thin wall capable of deforming, and when the blade moves toward the second cavity body, the first thin wall deforms toward the inner wall face of the outer shell. Through the arrangement of the self-compensating structure, clearances caused by mechanical abrasion can be automatically compensated when the fit clearances between the components become large, so that the damping rotating shaft mechanism is kept in a stable state for a long time, and the service life of the damping rotating shaft mechanism is prolonged.
Description
Technical field
The utility model relates to a kind of Damping rotation shaft mechanism, particularly relate to a kind ofly realize that a direction is easily rotated, opposite direction damping rotary there is the Damping rotation shaft mechanism of sealing auto-compensation.
Background technique
Rotary connector is widely used in multiple fields, such as can be for lavatory lid, refrigerator door, phone cover and cupboard door etc.Early stage rotary connector does not have damping function, such as, in the time being used on lavatory lid, in the process of lavatory lid under opening or covering, any resistance is not set, while so just easily causing lavatory lid to put down, easy beating 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.Thereby, the rotary connector of a kind of Damping rotation shaft mechanism just arises at the historic moment, an important feature of this Damping rotation shaft mechanism, to utilize blade to realize the effect of one-way valve, in the time that this Damping rotation shaft mechanism rotates towards a direction, the blade of Damping rotation shaft mechanism is by the central core of circulation sealing of damping oil, damping oil can only pass through by the gap between the parts between two cavitys, thereby damping oil flows while flowing to another cavity from a cavity slowly, form there the is resistance rotating effect of (being damping), in the time that Damping rotation shaft mechanism rotates in the opposite direction, blade can not seal damping oil central core of circulation, damping oil passes through from the gap between central core of circulation and parts, thereby damping oil flows faster while flowing to a described cavity from described another cavity, form unresisted quick rotation effect.This Damping rotation shaft mechanism is in the time 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 can cause mechanical wear, make the cooperation gap between parts become large, in the time that the gap between parts increases, will make two sealings between cavity die down, thereby the damping variation that makes Damping rotation shaft mechanism, time when damping rotary shortens, and even damping function lost efficacy.
Model utility content
The purpose of this utility model is to overcome the deficiency of prior art, provide one to there is the self-compensating Damping rotation shaft of sealing mechanism, by the setting of self-compensating structure, while can the matching gap between parts becoming large, the gap that auto-compensation produces because of mechanical wear, thereby make Damping rotation shaft mechanism remain on for a long time a stable state, reach and extend the Damping rotation shaft mechanism object in working life.
The utility model solves the technological scheme that its technical problem adopts: one has the self-compensating Damping rotation shaft of sealing mechanism, 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 in the cavity that a section of guide pin bushing is contained in shell and forms airtight inner chamber in rotating shaft; In described airtight inner chamber, be filled with damping oil, and be separated into the first cavity and the second cavity by guide pin bushing; On guide pin bushing, be provided with the first passage that is communicated with two cavitys; Described blade activity is contained on guide pin bushing, and is in leaning on the second cavity one side with sealing or opening this first passage of 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 rotation is engaged in the internal thread place of shell, and is provided with rotation prevention structure between guide pin bushing and rotating shaft, while making shell with respect to the forward and reverse rotation of rotating shaft, make guide pin bushing mobile along axially coming and going 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 the first thin-walled that can deformation, in the time that blade moves to the second cavity direction, the first thin-walled is to the deformation of shell internal face direction.
The inwall of described guide pin bushing matches with the outer wall of rotating shaft, be provided with at the inwall place by one end of the second cavity of guide pin bushing can deformation the second thin-walled, in the time that guide pin bushing moves to the second cavity direction, the second thin-walled is to the outer wall direction deformation of rotating shaft.
The first thin-walled place of described blade is provided with the first cavity being 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 recess of its first cavity is subject to the effect of damping oil pressure and the first thin-walled is opened laterally.
The second thin-walled place of described guide pin bushing is provided with the second cavity being 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 recess of its second cavity is subject to the effect of damping oil pressure and the second thin-walled is opened laterally.
Between described blade or blade and guide pin bushing, be also provided with oily passage.
Described blade is made up of the monomer of at least two camber shapes, each monomer surround circle or with together with the convex body of guide pin bushing, surround circular to be engaged in the form of a ring the internal face place of shell.
The sectional shape of described monomer is V font, U font, E font, T font, W font or C font.
The oily passage of described mistake is the first through hole along axial direction being arranged on blade.
The oily channel setting of described mistake is between blade and guide pin bushing, and this crosses oily passage is the breach being located 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 crosses the fitting surface in the integrated groove of employing of at least one end and the convex body of guide pin bushing that oily passage comprises at least one monomer that is located at blade, and described fitting surface is inclined-plane.
Described first passage is located at guide pin bushing outside thread place, between this guide pin bushing outside thread and shell internal thread, has preset gap.
Described first passage is the first fluting along hand of spiral arranging on guide pin bushing outside thread.
Described rotation prevention structure comprise be arranged on rotating shaft outer wall place and be along the first convex tendon of axial direction and be arranged on guide pin bushing inwall place and be the second recessed road along axial direction, described the first convex tendon matches with described the second recessed road.
Further, between the first cavity and the second cavity, be also provided with the second channel for being communicated with two cavitys, the cross section of described second channel is reducing setting, to make damping oil be state of changing 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 axle core and the described guide pin bushing of diameter change surround described second channel, the diameter of the axle core of described diameter change gradually by by one end of the first cavity to being gradually and increasing by one end of the second cavity.
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 to being sudden change by one end of the second cavity by the one end by the first cavity.
Described rotating shaft is provided with along axial the second fluting gradually changing, this second fluting gradually changing surrounds described second channel with described guide pin bushing, and the sectional area of described the second fluting gradually changing is by leaning on one end of the first cavity to being gradually and dwindling by one end of the second cavity.
Described rotating shaft is provided with the 3rd fluting along axial gradient-structure, the 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 dwindled 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 that gradually changes internal diameter, this chamber wall and described guide pin bushing that gradually changes the cavity of internal diameter surrounds described second channel, and the internal diameter of the described cavity that gradually changes internal diameter is gradually and dwindles to one end of leaning on the second cavity by the one end by the first cavity.
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 dwindled to being sudden change by one end of the second cavity by the one end by the first cavity.
In the chamber wall of the cavity of described shell, be provided with along axial the 4th fluting gradually changing, this the 4th fluting gradually changing surrounds described second channel with described guide pin bushing, and described the 4th fluting gradually changing is by leaning on one end of the first cavity to being gradually and dwindling by one end of the second cavity.
In the chamber wall of the cavity of described shell, be provided with the 5th fluting along axial gradient-structure, the 5th fluting of this gradient-structure surrounds described second channel with described guide pin bushing, and the 5th fluting of described gradient-structure is dwindled 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 changing along hand of spiral, this the 6th fluting gradually changing surrounds described second channel with described guide pin bushing, and described the 6th fluting gradually changing is dwindled to being spiral by one end of the second cavity gradually by the one end by the first cavity.
One of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, on guide pin bushing, blade, thin walled structures to be set to play auto-compensation, thin-walled on blade, the guide pin bushing respectively fitting surface relevant to shell, rotating shaft coordinates, and under the effect of pressure, can do small deformation.In the time that shell rotates, shell drives guide pin bushing and blade to move reciprocatingly by screw mechanism, in damping state, shell rotates towards a direction with respect to rotating shaft, guide pin bushing is moved to the second cavity direction, the space of the second cavity progressively diminishes, damping oil pressure in the second cavity increases, simultaneously, it is large that the space of the first cavity progressively becomes, damping oil pressure in the first cavity reduces, poor effect is stressed, the damping oil of the second cavity will flow to the first cavity, mobile damping oil can be pushed blade to first passage mouth, blade seals first passage, on the other hand, oil pressure becomes large damping oil and enters the first cavity, the recess of the first cavity is opened the first thin-walled by the effect of damping oil pressure laterally, make the first thin-walled to the deformation of shell internal face direction, thereby can compensate the gap forming between blade and shell because of mechanical wear after long-time use, same, oil pressure becomes large damping oil and also enters the second cavity, the recess of the second cavity is opened the second thin-walled by the effect of damping oil pressure laterally, make the outer wall direction deformation of the second thin-walled to rotating shaft, thereby can compensate the gap forming between rotating shaft and guide pin bushing because of mechanical wear after long-time use, like this, the damping oil that is flowed to the first cavity by the second cavity can only pass through the oily passage of mistake of blade, or the oily passage of mistake between blade and guide pin bushing, or preset the Clearance Flow between gap and/or rotating shaft and the guide pin bushing between big or small blade and shell, make in long-term use, damping oil in damping process all can keep constant flow, namely utilize thin walled structures to produce deformation, reach self-compensating effect.Shell rotates in the opposite direction with respect to rotating shaft, guide pin bushing is moved to the first cavity direction, the space of the first cavity progressively diminishes, damping oil pressure in the first cavity increases, simultaneously, it is large that the space of the second cavity progressively becomes, damping oil pressure in the second cavity reduces, poor effect is stressed, the damping oil of the first cavity will flow to the second cavity, mobile damping oil can push away blade first passage mouth, blade is opened first passage, damping oil quick pressure releasing, , damping oil flows to the second cavity from the first cavity rapidly, now, due to the first cavity, damping oil pressure in the second cavity is less, self-compensating structure is inoperative, thereby reach the effect that there is no 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 beneficial effects of the utility model are:
1, due to the utility model adopted on blade, be provided with can deformation the first thin-walled, on guide pin bushing, be provided with can deformation the second thin-walled, be close to mutually and be provided with the first cavity at the first thin-walled, be close to mutually and be provided with the second cavity at the second thin-walled, and the first cavity, the recess of the second cavity be set as specifically towards, the fitting surface that the first thin-walled is relevant to shell coordinates, the fitting surface that the second thin-walled is relevant to rotating shaft coordinates, above-mentioned self compensation mechanism, can be in damping state, make the first thin-walled to the deformation of shell internal face direction, make the outer wall direction deformation of the second thin-walled to rotating shaft, thereby the gap can auto-compensation producing because of mechanical wear, make Damping rotation shaft mechanism remain on for a long time a stable state, reach and extend the Damping rotation shaft mechanism object in working life.
2, because the utility model has adopted the monomer formation of blade being arranged to at least two camber shapes, together with the convex body of each monomer and guide pin bushing, surround circular to be engaged in the form of a ring the internal face place of shell, 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 and formed oily passage, and fitting surface is inclined-plane, can make in the time of vanes close first passage mouth, the sectional area of crossing oily passage is less, and in the time that blade is opened first passage mouth, the sectional area of crossing oily passage is larger, thereby effectively ensure that rotary shaft mechanism slowly rotates in the opposite direction towards a direction quick rotation.
3, because having adopted between the first cavity and the second cavity, the utility model is also provided with the second channel for being communicated with two cavitys, and the cross section of described second channel is reducing setting, to make damping oil be state of changing in the amount of flow of second channel, this structure, can be by setting in advance, make rotary shaft mechanism being slowly divided into again rhythm first quick and back slow in rotation process, realize better using effect.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism is not limited to embodiment.
Brief description of the drawings
Fig. 1 is embodiment one D structure decomposing schematic representation of the present utility model;
Fig. 2 is embodiment one assembling of the present utility model (being assemblied on lavatory lid) schematic diagram;
Fig. 3 is the schematic diagram of embodiment's one the utility model in the time that lavatory lid is opened completely;
Fig. 4 is the schematic diagram of embodiment's one the utility model in lavatory lid closing process;
Fig. 5 is the schematic diagram of embodiment's one the utility model in the time that lavatory lid is closed completely;
Fig. 6 is the schematic diagram of embodiment's one the utility model in lavatory lid opening procedure;
Fig. 7 is the organigram of embodiment's one rotating shaft of the present utility model;
Fig. 8 is the structure cutaway view of embodiment's one rotating shaft of the present utility model;
Fig. 9 is the organigram of embodiment's one guide pin bushing of the present utility model;
Figure 10 is the structure cutaway view of embodiment's one guide pin bushing of the present utility model;
Figure 11 is the organigram that embodiment one blade of the present utility model 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 utility model matches with guide pin bushing;
Figure 13 is the organigram of embodiment's two rotating shafts of the present utility model;
Figure 14 is the structure cutaway view of embodiment's two rotating shafts of the present utility model;
Figure 15 is the organigram of embodiment's three rotating shafts of the present utility model;
Figure 16 is the structure cutaway view of embodiment's three rotating shafts of the present utility model;
Figure 17 is the organigram of embodiment's four rotating shafts of the present utility model;
Figure 18 is the structure cutaway view of embodiment's four rotating shafts of the present utility model;
Figure 19 is the structure cutaway view of embodiment's five shells of the present utility model;
Figure 20 is the structure cutaway view of embodiment's six shells of the present utility model;
Figure 21 is the organigram of embodiment's seven shells of the present utility model;
Figure 22 is the structure cutaway view of embodiment's seven shells of the present utility model;
Figure 23 is the organigram of embodiment's eight shells of the present utility model;
Figure 24 is the structure cutaway view of embodiment's eight shells of the present utility model;
Figure 25 is the organigram of embodiment's nine shells of the present utility model;
Figure 26 is the organigram of embodiment's ten guide pin bushings of the present utility model;
Figure 27 is the structure cutaway view of embodiment's ten guide pin bushings of the present utility model;
Figure 28 is the organigram of embodiment's 11 blades of the present utility model;
Figure 29 is the structure cutaway view of embodiment's 11 blades of the present utility model;
Figure 30 is the organigram that embodiment 12 blade of the present utility model matches with guide pin bushing;
Figure 31 is the structure cutaway view that embodiment 12 blade of the present utility model matches with guide pin bushing.
Embodiment
Embodiment one
Referring to shown in Fig. 1 to Figure 12, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, 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 made as opening, the other end is made as sealing, guide pin bushing 2 is actively set in rotating shaft 1, in rotating shaft 1, be combined with in the cavity that a section of guide pin bushing 2 is contained in shell and make described cavity form airtight inner chamber, one end of rotating shaft 1 is stretched in the cavity of shell 3, utilize one end of shell countershaft 1 to support, rotating shaft 1 part in cavity hatch place is covered 51 by welding and is supported, cavity hatch place utilizes seal ring 52 to realize sealing, thereby makes the cavity of shell form airtight inner chamber; In described airtight inner chamber, be filled with damping oil, described airtight inner chamber is separated into the first cavity 31 and the second cavity 32 by guide pin bushing 2; On guide pin bushing 2, be provided with the first passage that is communicated with two cavitys; Described blade 4 activities are contained on guide pin bushing 2, and be in first passage by a side of the second cavity, by near or seal or open this first passage away from the mode of first passage mouth; 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 rotations are engaged in internal thread 33 places of shell 3, and be provided with rotation prevention structure between guide pin bushing 2 and rotating shaft 1, while making shell 3 with respect to the forward and reverse rotation of rotating shaft, make guide pin bushing 2 mobile along axially coming and going 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 airtight inner chamber of shell 3, blade 4 is provided with the first thin-walled 41 that can deformation, in the time that blade 4 moves to the second cavity 32 directions, the first thin-walled 41 is to the deformation of shell internal face direction.
The inwall of described guide pin bushing 2 matches with the outer wall of rotating shaft 1, be provided with at the inwall place by one end of the second cavity of guide pin bushing 2 can deformation the second thin-walled 22, in the time that guide pin bushing 2 moves to the second cavity 32 directions, the second thin-walled 22 is to the outer wall direction deformation of rotating shaft 1.
The first thin-walled 41 places of described blade 4 are provided with the first cavity 42 being 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 recess of its first cavity 42 is subject to the effect of damping oil pressure and the first thin-walled 41 is opened laterally.
The second thin-walled 22 places of described guide pin bushing are provided with the second cavity 23 being 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 recess of its second cavity 23 is subject to the effect of damping oil pressure and the second thin-walled 22 is opened laterally.
Between described blade or blade and guide pin bushing, be also provided with oily passage.
Described blade 4 is made up of the monomer 40 of at least two camber shapes, each monomer surround circle or with together with the convex body 24 of guide pin bushing 2, surround circular to be engaged in the form of a ring the internal face place of shell.
In the present embodiment, blade 4 is made up of the monomer 40 of two camber shapes, the monomer of two camber shapes 40 can be designed to just surround a circle, also can be as the present embodiment, two convex bodys 24 are set on guide pin bushing 2, two convex bodys 24 of the monomer of two camber shapes 40 and guide pin bushing 2 are surrounded to a circle jointly, to be engaged in the form of a ring the internal face place of shell 3.
The sectional shape of the monomer of the present embodiment is V font, according to designing requirement, also can be designed to other shapes such as U font, E font, T font, 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 crosses the fitting surface 241 in the integrated groove 43 of employing of at least one end and the convex body 24 of guide pin bushing that oily passage comprises at least one monomer that is located at blade, 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, is exactly in fact guide pin bushing outside thread to be designed to shell internal thread 33 gapped 61, and this gap 61 has formed first passage.
Described rotation prevention structure comprise be arranged on rotating shaft 1 outer wall place and be along the first convex tendon 11 of axial direction and be arranged on guide pin bushing 2 inwalls place and be the second recessed road 25 along axial direction, described the first convex tendon 11 matches with described the second recessed road 25.
Further, between the first cavity 31 and the second cavity 32, be also provided with the second channel for being communicated with two cavitys, the cross section of described second channel is reducing setting, to make damping oil be state of changing 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, this gradually the axle core 12 of diameter change surround 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 being gradually and increasing by one end of the second cavity.
One of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be mounted between lavatory lid and toilet pedestal, lavatory lid comprises seat ring 53 and upper cover 54, between shell 3 of the present utility model and rotating shaft 1, can relatively rotate, therefore, only shell 3 need be connected with lavatory lid with one of them in rotating shaft 1, wherein another and toilet pedestal in shell 3 and rotating shaft 1 are fixed, just can realize lavatory lid and rotate with respect to toilet pedestal.
One of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, on guide pin bushing 2, blade 4, thin walled structures to be set to play auto-compensation, thin-walled on blade 4, the guide pin bushing 2 respectively fitting surface relevant to shell 3, rotating shaft 1 coordinates, and under the effect of pressure, can do small deformation.In the time that shell 3 rotates, shell 3 drives guide pin bushing 2 and blade 4 to move reciprocatingly by screw mechanism, at the state that falls slowly, shell 3 rotates towards a direction with respect to rotating shaft, guide pin bushing 2 is moved to the second cavity 32 directions, the space of the second cavity 32 progressively diminishes, damping oil pressure in the second cavity 32 increases, simultaneously, it is large that the space of the first cavity 31 progressively becomes, damping oil pressure in the first cavity 31 reduces, poor effect is stressed, the damping oil of the second cavity 32 will flow to the first cavity 31, mobile damping oil can be pushed blade 4 to first passage mouth (being one end port in gap 61), blade 4 seals first passage, on the other hand, oil pressure becomes large damping oil and enters the first cavity 42, the recess of the first cavity 42 is opened the first thin-walled 41 by the effect of damping oil pressure laterally, make the first thin-walled 41 to the deformation of shell internal face direction, thereby can compensate the gap forming between blade and shell because of mechanical wear after long-time use, same, oil pressure becomes large damping oil and also enters the second cavity 23, the recess of the second cavity 23 is opened the second thin-walled 22 by the effect of damping oil pressure laterally, make the fitting surface direction deformation of the second thin-walled 22 to rotating shaft, thereby can compensate the gap forming between rotating shaft and guide pin bushing because of mechanical wear after long-time use, like this, the damping oil that is flowed to the first cavity 31 by the second cavity 32 can only pass through the oily passage of mistake of blade 4, or the oily passage of mistake between blade and guide pin bushing, or preset the Clearance Flow between gap and/or rotating shaft and the guide pin bushing between big or small blade and shell, make in long-term use, slowly the damping oil falling in process all can keep constant flow, namely utilize thin walled structures to produce deformation, reach self-compensating effect.Shell 3 rotates in the opposite direction with respect to rotating shaft, guide pin bushing 2 is moved to the first cavity 31 directions, the space of the first cavity 31 progressively diminishes, damping oil pressure in the first cavity 31 increases, simultaneously, it is large that the space of the second cavity 32 progressively becomes, damping oil pressure in the second cavity 32 reduces, poor effect is stressed, the damping oil of the first cavity 31 will flow to the second cavity 32, mobile damping oil can push away blade 4 first passage mouth (being one end port in gap 61), blade 4 is opened first passage, damping oil quick pressure releasing, , damping oil flows to the second cavity 32 from the first cavity 31 rapidly, now, due to the first cavity, damping oil pressure in the second cavity is less, self-compensating structure is inoperative, thereby reach the effect that reduces 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, can be to be also designed to allow rotating shaft rotate, and shell be motionless, same, can allow guide pin bushing move back and forth in the enclosure.
The utility model has adopted the monomer formation of blade being arranged to two camber shapes, together with the convex body 24 of two monomers 40 and guide pin bushing, surround circular to be engaged in the form of a ring the internal face place of shell, 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 of the convex body of groove 43 and guide pin bushing 24 241 is matched and formed oily passage, and fitting surface is inclined-plane, can make in the time that blade 4 seals first passage mouth, the sectional area of crossing oily passage 62 (as shown in figure 12) is less, and in the time that blade 4 is opened first passage mouth, the sectional area of crossing oily passage 63 (as shown in figure 12) is larger, thereby effectively ensure that the fast of cover plate rises to fall slowly.
One of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, adopt between the first cavity 31 and the second cavity 32 and be provided with the second channel for being communicated with two cavitys, and the cross section of second channel is reducing setting, to make damping oil be state of changing in the amount of flow of second channel.Rotating shaft 1 of the present utility model has the axle core 12 of diameter change gradually, this gradually the axle core 12 of diameter change surround described second channel with described guide pin bushing 2, the diameter of the described axle core 12 that gradually changes internal diameter by the one end by the first cavity to being gradually and increasing by one end of the second cavity.Like this, the sectional area of second channel is just from the one end by the first cavity to being gradually and dwindling by one end of the second cavity, when cover plate starts to fall, the sectional area maximum of second channel, damping oil in the second cavity 32 will be to the first cavity 31 rapid flows, the resistance that cover plate falls is very little, along with cover plate continues to fall, the sectional area of second channel diminishes gradually, it is large that the resistance that cover plate falls also becomes gradually, fall to cover plate latter stage time, the resistance that cover plate falls is also maximum, thereby forms the cover plate effect that falls slowly preferably.
Embodiment two
Referring to shown in Figure 13 to Figure 14, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment one difference, 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 to being sudden change by one end of the second cavity by the one end by the first cavity.
Embodiment three
Referring to shown in Figure 15 to Figure 16, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment one difference, rotating shaft 1 does not adopt the axle core of diameter change gradually, but rotating shaft 1 is provided with along axial the second fluting 14 gradually changing, the second fluting 14 is located on the first convex tendon 11, certainly, also can be provided in a side of on axle core, this second fluting 14 gradually changing surrounds described second channel with described guide pin bushing 2, and described the second fluting 14 gradually changing is by leaning on one end of the first cavity to being gradually and dwindling by one end of the second cavity.
Embodiment four
Referring to shown in Figure 17 to Figure 18, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment one difference, rotating shaft 1 does not adopt the axle core of diameter change gradually, but rotating shaft 1 is provided with the 3rd fluting 15 along axial gradient-structure, the 3rd fluting 15 is located on the first convex tendon 11, certainly, also can be provided in a side of on axle core, the 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 dwindled 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 utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment one difference, 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 that gradually changes internal diameter, this chamber wall and described guide pin bushing 2 that gradually changes the cavity 34 of internal diameter surrounds described second channel, and the internal diameter of the described cavity 34 that gradually changes internal diameter is gradually and dwindles to one end of leaning on the second cavity by the one end by the first cavity.The present embodiment, there are two second channels, one is to be surrounded with described guide pin bushing 2 by the axle core 12 that gradually changes internal diameter, another is to be surrounded by chamber wall and the described guide pin bushing 2 of the cavity 34 that gradually changes internal diameter, certainly, can be also to only have one, such as, only have chamber wall and the described guide pin bushing 2 of the cavity 34 that gradually changes internal diameter 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 utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment five difference, shell is not to adopt the cavity that gradually changes 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 dwindled to being sudden change by one end of the second cavity by the one end by the first cavity.
Embodiment seven
Referring to shown in Figure 21 to Figure 22, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment five difference, shell is not to adopt the cavity that gradually changes internal diameter, but in the chamber wall of the cavity of shell 3, be provided with along axial the 4th fluting 36 gradually changing, this the 4th fluting 36 gradually changing surrounds described second channel with described guide pin bushing 2, and described the 4th fluting 36 gradually changing is by leaning on one end of the first cavity to being gradually and dwindling by one end of the second cavity.
Embodiment eight
Referring to shown in Figure 23 to Figure 24, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment five difference, shell is not to adopt the cavity that gradually changes internal diameter, but in the chamber wall of the cavity of shell 3, be provided with the 5th fluting 37 along axial gradient-structure, the 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 dwindled 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 utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment five difference, shell is not to adopt the cavity that gradually changes internal diameter, but be provided with the 6th fluting 38 gradually changing along hand of spiral at the internal thread 33 of shell, this the 6th fluting 38 gradually changing surrounds described second channel with described guide pin bushing 2, and described the 6th fluting 38 gradually changing is dwindled to being spiral by one end of the second cavity gradually by the one end by the first cavity.
Embodiment ten
Referring to shown in Figure 26 to Figure 27, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, is with embodiment one difference, and described first passage is the first fluting 26 along hand of spiral arranging on guide pin bushing outside thread 21
Embodiment 11
Referring to shown in Figure 28 to Figure 29, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, is with embodiment one difference, and the oily passage of described mistake is the first through hole 44 along axial direction being arranged on blade.
Embodiment 12
Referring to shown in Figure 30 to Figure 31, one of the present utility model has the self-compensating Damping rotation shaft of sealing mechanism, be with embodiment one difference, the oily channel setting of described mistake is between blade and guide pin bushing, this crosses oily passage is the breach 45 being located at least one monomer of blade 4, and breach 45 surrounded oily passage with guide pin bushing.
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 can all have setting between guide pin bushing and rotating shaft and between guide pin bushing and shell, such as, rotating shaft adopts the axle core of sudden change internal diameter, and shell adopts the cavity that gradually changes internal diameter; For another example, rotating shaft is provided with along axial the second fluting gradually changing, and is provided with the 5th fluting along axial gradient-structure 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 utlity model has application area comparatively widely, can be 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 be used for drawer, this is because the utility model adopts is to allow damping oil along the axial motion of rotating shaft, is compared to and allows damping oil can form longer stroke along the circumferential movement of rotating shaft, and when use, be the rotation that the straight line motion of drawer is changed into rotating shaft.
Above-described embodiment is only used for further illustrating one of the present utility model and has the self-compensating Damping rotation shaft of sealing mechanism; but the utility model is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all fall in the protection domain of technical solutions of the utility model.
Claims (15)
1. there is the self-compensating Damping rotation shaft of a sealing mechanism, 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 in the cavity that a section of guide pin bushing is contained in shell and forms airtight inner chamber in rotating shaft; In described airtight inner chamber, be filled with damping oil, and be separated into the first cavity and the second cavity by guide pin bushing; On guide pin bushing, be provided with the first passage that is communicated with two cavitys; Described blade activity is contained on guide pin bushing, and is in leaning on the second cavity one side with sealing or opening this first passage of 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 rotation is engaged in the internal thread place of shell, and be provided with rotation prevention structure between guide pin bushing and rotating shaft, while making shell with respect to the forward and reverse rotation of rotating shaft, make guide pin bushing mobile along axially coming and going 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 the first thin-walled that can deformation, in the time that blade moves to the second cavity direction, the first thin-walled is to the deformation of shell internal face direction.
2. according to claim 1 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: the inwall of described guide pin bushing matches with the outer wall of rotating shaft, be provided with at the inwall place by one end of the second cavity of guide pin bushing can deformation the second thin-walled, in the time that 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 of a sealing mechanism, it is characterized in that: the first thin-walled place of described blade is provided with the first cavity being 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 recess of its first cavity is subject to the effect of damping oil pressure and the first thin-walled is opened laterally; The second thin-walled place of described guide pin bushing is provided with the second cavity being 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 recess of its second cavity is subject to the effect of damping oil pressure and the second thin-walled is opened laterally.
4. according to claim 1 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: between described blade or blade and guide pin bushing, be also provided with oily passage; Described blade is made up of the monomer of at least two camber shapes, each monomer surround circle or with together with the convex body of guide pin bushing, surround circular to be engaged in the form of a ring the internal face place of shell.
5. according to claim 4 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: the sectional shape of described monomer is V font, U font, E font, T font, W font or C font.
6. according to claim 4 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: the oily passage of described mistake is the first through hole along axial direction being arranged on blade; Or the oily passage of described mistake comprises the breach at least one monomer that is located at blade, 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 and the convex body of guide pin bushing of at least one monomer that is located at blade, described fitting surface is inclined-plane.
7. according to claim 1 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: described first passage is located at guide pin bushing outside thread place having 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 arranging on guide pin bushing outside thread.
8. according to claim 1 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: described rotation prevention structure comprise be arranged on rotating shaft outer wall place and be along the first convex tendon of axial direction and be arranged on guide pin bushing inwall place and be the second recessed road along axial direction, described the first convex tendon matches with described the second recessed road.
9. according to claim 1 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: further, between the first cavity and the second cavity, be also provided with the second channel for being communicated with two cavitys, the cross section of described second channel is reducing setting, to make damping oil be state of changing in the amount of flow of second channel.
10. according to claim 9 have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: described second channel is arranged between guide pin bushing and rotating shaft.
11. according to claim 10ly have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: described rotating shaft has the axle core of variation gradually or sudden change diameter, this changes gradually or axle core and the described guide pin bushing of the diameter that suddenlys change surround described second channel, and the diameter of the axle core of described variation gradually or sudden change diameter is increased to being by one end of the second cavity gradually to increase or suddenly change by the one end by the first cavity.
12. according to claim 10ly have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: described rotating shaft is provided with along axial the second fluting gradually changing, this second fluting gradually changing surrounds described second channel with described guide pin bushing, and the sectional area of described the second fluting gradually changing is by leaning on one end of the first cavity to being gradually and dwindling by one end of the second cavity; Or, described rotating shaft is provided with the 3rd fluting along axial gradient-structure, the 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 dwindled to the one end by the second cavity in gradient by the one end by the first cavity.
13. according to having the self-compensating Damping rotation shaft of a sealing mechanism described in claim 9 or 10, it is characterized in that: described second channel is arranged between guide pin bushing and shell.
14. according to claim 13ly have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: described shell has the cavity of variation gradually or sudden change internal diameter, this changes gradually or chamber wall and the described guide pin bushing of the cavity of the internal diameter that suddenlys change surround described second channel, described gradually change or the internal diameter of the cavity of sudden change internal diameter by the one end by the first cavity to being and gradually dwindling or suddenly change and dwindle by one end of the second cavity.
15. according to claim 13ly have the self-compensating Damping rotation shaft of a sealing mechanism, it is characterized in that: in the chamber wall of the cavity of described shell, be provided with along axial the 4th fluting gradually changing, this the 4th fluting gradually changing surrounds described second channel with described guide pin bushing, and described the 4th fluting gradually changing is by leaning on one end of the first cavity to being gradually and dwindling by one end of the second cavity; Or, in the chamber wall of the cavity of described shell, be provided with the 5th fluting along axial gradient-structure, the 5th fluting of this gradient-structure surrounds described second channel with described guide pin bushing, and the 5th fluting of described gradient-structure is dwindled 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 changing along hand of spiral, this the 6th fluting gradually changing surrounds described second channel with described guide pin bushing, and described the 6th fluting gradually changing is dwindled to being spiral by one end of the second cavity gradually by the one end by the first cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200838.0U CN203835945U (en) | 2014-04-23 | 2014-04-23 | Damping rotating shaft mechanism with seal self-compensating function |
| 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 |
|---|---|---|---|
| CN201420200838.0U CN203835945U (en) | 2014-04-23 | 2014-04-23 | Damping rotating shaft mechanism with seal self-compensating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835945U true CN203835945U (en) | 2014-09-17 |
Family
ID=51513792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200838.0U Expired - Fee Related CN203835945U (en) | 2014-04-23 | 2014-04-23 | Damping rotating shaft mechanism with seal self-compensating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161797A1 (en) * | 2014-04-23 | 2015-10-29 | 王湘冀 | Damping rotating shaft mechanism with self-compensating seal and toilet cover having same |
| CN105020257A (en) * | 2014-04-23 | 2015-11-04 | 王湘冀 | Damping revolving shaft mechanism with seal self-compensation capability |
-
2014
- 2014-04-23 CN CN201420200838.0U patent/CN203835945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161797A1 (en) * | 2014-04-23 | 2015-10-29 | 王湘冀 | Damping rotating shaft mechanism with self-compensating seal and toilet cover having same |
| CN105020257A (en) * | 2014-04-23 | 2015-11-04 | 王湘冀 | Damping revolving shaft mechanism with seal self-compensation capability |
| CN105020257B (en) * | 2014-04-23 | 2018-08-31 | 厦门威迪亚精密模具塑胶有限公司 | One kind, which has, seals self-compensating Damping rotation shaft mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160823 Address after: Xiafei road in Haicang District of Xiamen city of Fujian Province, No. 2 361000 Patentee after: Xiamen Weidiya Precision Mould Plastic Co., Ltd. Address before: Xiafei road in Haicang District of Xiamen city of Fujian Province, No. 2 361022 Patentee before: Wang Xiangji |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |