CN106499284A

CN106499284A - Vapour-pressure type can self-positioning and self-closing hinge

Info

Publication number: CN106499284A
Application number: CN201510631331.XA
Authority: CN
Inventors: 吴裕龙
Original assignee: Individual
Current assignee: Tongguan (xiamen) Electronic Technology Co ltd
Priority date: 2015-08-31
Filing date: 2015-09-29
Publication date: 2017-03-15
Anticipated expiration: 2035-09-29
Also published as: CN106499284B

Abstract

The invention discloses the self-positioning and self-closing hinge of vapour-pressure type energy, including two hinges, solid bar, swivel nut, plug and center.The hinge sets axle sleeve and blade.The center is arranged with first row air inlet；Center is socketed in two axle sleeves of hinge；Solid bar, centre mount, two springs and check valve are provided between the swivel nut and plug in center；The swivel nut and solid bar is provided with exhaust pition Gu the screw rod of bar is spirally connected, exhaust pition sealing is slipped in center；First spring top is against between solid bar and centre mount, and between centre mount and check valve, check valve sealing is located in center the retaining spring contact, constitutes air-pressure chamber between exhaust pition and check valve.The exhaust pition is discharged towards check valve activity, air pressure room air through first row air inlet, check valve, and after exhaust pition cunning is through first row air inlet hole site, air pressure room air is discharged through check valve.Hinge can be self-positioning in the orientation angle of predetermined set, can be self-closing below the orientation angle for exiting predetermined set.

Description

Vapour-pressure type can self-positioning and self-closing hinge

Technical field

The present invention relates to a kind of vapour-pressure type can self-positioning and self-closing hinge.

Background technology

It is entitled that Chinese patent database discloses utility model《A kind of rising hinge device》, Patent No. 2013208356551 invention.It includes hinge, lower jaw, retainer and drive link.Upper hinge includes Upper shaft sleeve and the upper hing straps of affixed Upper shaft sleeve；Lower jaw includes the lower hing straps of Lower shaft sleeve and affixed Lower shaft sleeve； The affixed Upper shaft sleeve of retainer, the retainer bottom face are arranged with drive cavity, and within the drive cavity, the surface of revolution is provided with One spiral part.The affixed Lower shaft sleeve of drive link, outside the drive link, the surface of revolution is provided with the second spiral part, the biography Lever connects drive cavity, first spiral part and the adaptation engagement of the second spiral part, wherein：Hinge in promotion Hinge is made to rotate relative to lower jaw, coordinating by the first spiral part and the second spiral part can make on upper hinge Rise；Pine oil is promoted makes hinge decline under gravity, is matched somebody with somebody by the first spiral part and the second spiral part Conjunction can make hinge automatically reset and return closure.The rising hinge device is directly coordinated using upper and lower axle sleeve to be realized turning Connect, but cannot divide self-closing and self-positioning.

Content of the invention

The invention provides the self-positioning and self-closing hinge of vapour-pressure type energy, which overcomes rising hinge dress in background technology Put existing deficiency.

One of the technical solution adopted for the present invention to solve the technical problems is：

The self-positioning and self-closing hinge of vapour-pressure type energy, including two hinges, solid bar and swivel nut, each hinge all sets one Axle sleeve and one is fixed in the blade outside axle sleeve, and two hinge can be relatively rotated, and the solid bar has screw rod；Also include Plug and center, the center and axle sleeve are respectively provided with one along the spacing dimension position of axis and axial and circumferential The inside and outside first row air inlet for running through；The center is socketed in the axle sleeve of two hinges；The swivel nut rotationally can set In center and an affixed axle sleeve, the plug is located in center and affixed another axle sleeve, the swivel nut and plug Solid bar, the first spring, centre mount, retaining spring and list are provided between the swivel nut and plug in interval, the center To valve；The screw rod of the solid bar is spirally connected swivel nut and solid bar is provided with exhaust pition, and exhaust pition sealing is slipped in center Interior；First spring top is against between solid bar and centre mount, the retaining spring contact centre mount and check valve it Between, the check valve sealing is located in center, constitutes air-pressure chamber between the exhaust pition and check valve；Wherein：Should Exhaust pition is discharged towards check valve activity, air pressure room air through first row air inlet, check valve, aerofluxuss After piston cunning is through first row air inlet hole site, the air in air pressure room is discharged through check valve.

Among one embodiment：The check valve include one can slip and seal the positioning piston of air-pressure chamber, a gas leakage block up Plug and one the 3rd spring, the positioning piston centre sets second row pore, and gas leakage blocking includes a pad and convex The stifled post at pad center is located at, the stifled post adaptation is stretched in second row pore, the 3rd spring one end contact pad, The other end can relative contact plug.

Among one embodiment：The centre mount is blow-cook.

Among one embodiment：Also include a cup, the cup adjustably can be located in center along center；Should Check valve is located in cup, and the centre mount is fixed in cup.

Among one embodiment：Also include adjustment seat, the cup adjustably can be located in center along center, should Adjustment seat connects cup through plug, can adjust the axial location of the relative center of cup.

Among one embodiment：The cup is provided with a step, for limiting positioning piston along near the 3rd spring direction Motion, the 3rd spring top are against between the cup bottom of cup and pad.

Among one embodiment：Outside the solid bar, sealing ring is socketed with, the sealing ring constitutes above-mentioned exhaust pition.

Among one embodiment：Also include that the volution that can be located in center affixedly, the volution are located at swivel nut and row Between gas piston, the screw rod of the solid bar is bolted through volution and is spirally connected again swivel nut.

The two of the technical solution adopted for the present invention to solve the technical problems are：

Vapour-pressure type can self-positioning and self-closing hinge, including the first hinge, the second hinge, solid bar and swivel nut, this One hinge sets the first axle sleeve that one first blade and two intervals are fixed in the first blade, and second hinge includes one Two blades and second axle sleeve for being fixed in the second blade, second axle sleeve adaptation are located at two first shaft rooms, should First hinge and the second hinge can be relatively rotated, and the solid bar has screw rod；Also include plug, the swivel nut is fixed in One first axle sleeve is interior and is rotatably connected in second axle sleeve one end, and the plug is fixed in the second axle sleeve and is connected to In another first axle sleeve one end, second axle sleeve constitutes center, and the center is arranged with first run through inside and outside Pore is discharged into, the cup and axle sleeve are respectively provided with inside and outside one and are passed through along the size-spacing position of axis and axial and circumferential That worn discharges into pore；The plug is fixed in the other end of center, and the swivel nut and plug are spaced；The center Solid bar, the first spring, centre mount, retaining spring and positioning piston (check valve) is provided between interior swivel nut and plug； The screw rod of the solid bar is spirally connected swivel nut and solid bar is provided with exhaust pition, and exhaust pition sealing is slipped in center；Should First spring top is against between solid bar and centre mount, and the retaining spring contact in centre mount and is positioned between piston, The positioning piston seal is located in center, and the exhaust pition and positioning piston space constitute air-pressure chamber；Wherein：Should Exhaust pition is discharged into towards positioning piston activity, air pressure room air through first row air inlet, cup and center Pore is discharged, and after exhaust pition cunning is through first row air inlet hole site, the air in air pressure room is through cup with The pore that discharges into of heart set is discharged.

Among one embodiment：The centre mount is blow-cook.

Among one embodiment：The cup is provided with a step, for limiting positioning piston along near the 3rd spring direction fortune Dynamic, the 3rd spring top is against between the cup bottom of cup and pad.

Among one embodiment：Also include that the volution that can be located in center affixedly, the volution are located at swivel nut and aerofluxuss Between piston, the screw rod of the solid bar is bolted through volution and is spirally connected again swivel nut.

Compared with background technology, it has the advantage that the technical program：

Hinge can be rotated relative to axle sleeve axis through opening, so that the exhaust pition energy that the solid bar in center has With respect to swivel nut downward spiral towards check valve activity, the gas in air pressure room is discharged by first row air inlet, Discharged by check valve, now the first spring-compressed energy storage；The exhaust pition that the solid bar of hinge has continues Rotate relative to swivel nut downward spiral, exhaust pition slips over first row air inlet, at the same time the gas in air pressure room Body is discharged by check valve so that the exhaust pition in center can correspond to check valve and retaining spring and First row air inlet, so that air-pressure chamber can be formed, in the process admittedly the elastic force of the first spring suffered by bar, itself Gravity, the atmospheric pressure (suction force) of air-pressure chamber balance each other so that the exhaust pition in air pressure room correspondingly can be determined Position piston, retaining spring, so that the exhaust pition in air pressure room can produce atmospheric pressure and suction force balances each other, Hinge during this is realized self-positioning.Hinge is closed so that solid bar energy swivel nut spiral relatively is moved upwards Dynamic, exhaust pition in air pressure room bottom-up do not skid off (exiting) first row air inlet before so that air pressure Indoor exhaust pition can correspondingly position piston and retaining spring, and the solid bar in air pressure room has in the process Exhaust pition suffered by the elastic force of the first spring, self gravitation, atmospheric pressure and (suction force) balance each other, Relatively so as to position the atmospheric pressure that piston can be produced by (suction force) of exhaust pition, and bottom-up Twitched and bottom-up slide, stop at an intended orientation angle to hinge self-positioning, at the same time The compressed energy-storage elastic force of the retaining spring produces change, so that retaining spring one end can support to arrive in centre mount, another , to the step that piston is supported to arrive in is positioned, at the same time the positioning piston is by exhaust pition for end energy contact positioning piston (suction force) and produce atmospheric pressure, and bottom-up twitched and bottom-up slide when, The compressed energy-storage elastic force of the 3rd spring produces change, so that the 3rd spring one end can support to arrive in the cup bottom of cup, The other end is relative to be blocked to the surface perisporium of positioning piston with energy contact gas leakage, empty can completely cut off, prevent outside Gas is from the air pressure room that second row pore enters center, so that exhaust pition can be self-positioning in air pressure room, As long as before exhaust pition does not skid off (exiting) first row air inlet, just energy mobility coordinates in air pressure room and closes Page is self-positioning in the orientation angle of predetermined set, and exhaust pition is bottom-up sliding through (not slipping into) first row Before air inlet, hinge can realize self-positioning, exhaust pition after (exiting) first row air inlet hole site is skidded off, So that the outside air of center is entered in air pressure room from first row air inlet among heart, at the same time the One spring energy storage release, to drive solid bar movable upwards so that hinge realize self-closing.The first row air inlet Axial and circumferential size-spacing set location of the hole along center and axle sleeve, corresponding hinge are fixed in a predetermined set The orientation angle starting point of parallactic angle degree is self-positioning, and can be self-closing below the predetermined angular boundary's point, both hinge rotate Orientation angle starting point to a predetermined set orientation angle is self-positioning, and can be self-closing below the predetermined angular boundary During point, so that exhaust pition can correspond to check valve and retaining spring and gas leakage blocking and first row air inlet, with Air-pressure chamber can be constituted, so that hinge can be self-positioning in the orientation angle of a predetermined set, and at predetermined set angle The following energy of degree is self-closing, and at the same time the air-pressure chamber can be corresponded to and coordinate hinge with can be in the orientation angle of predetermined set Self-positioning in degree, so that hinge can be freely self-positioning in the orientation angle of predetermined set, and in predetermined angular Below can be self-closing, relative so that hinge can freely arrange orientation angle.

Adjustment seat can adjust axial location of the cup with respect to center, can correspondingly adjust the compression of the first spring Energy storage elastic force and pretightning force and air-pressure chamber cavity size, can at least realize adjusting self-closing dynamics size, self-closing speed Degree speed.

Description of the drawings

The invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 depicts the structural representation of the hinge of embodiment one.

Fig. 2 depicts the structural representation of the second hinge of embodiment one.

Fig. 3 depicts the structural representation of the first hinge of embodiment one.

Fig. 4 depicts the assembling structure schematic diagram of the center of embodiment one.

Fig. 5 depicts the schematic perspective view of the center of embodiment one.

Fig. 6 depicts the structural representation of the center of embodiment one.

Fig. 7 depicts the schematic perspective view of the clutch shaft bearing of embodiment one.

Fig. 8 depicts the schematic perspective view of the swivel nut of embodiment one.

Fig. 9 depicts the structural representation of the swivel nut of embodiment one.

Figure 10 depicts the schematic perspective view of the volution of embodiment one.

Figure 11 depicts the structural representation of the volution of embodiment one.

Figure 12 depicts the structural representation of the affixed screw of embodiment one

Figure 13 depicts the schematic perspective view of the solid bar of embodiment one.

Figure 14 depicts the structural representation of the solid bar of embodiment one.

Figure 15 depicts the schematic perspective view of the blow-cook of embodiment one.

Figure 16 depicts the structural representation of the blow-cook of embodiment one.

Figure 17 depicts the structural representation of the positioning piston of embodiment one.

Figure 18 depicts the schematic perspective view of the positioning piston of embodiment one.

Figure 19 depicts the schematic perspective view of the gas leakage blocking of embodiment one.

Figure 20 depicts the structural representation of the cup of embodiment one.

Figure 21 depicts the schematic perspective view of the cup of embodiment one.

Figure 22 depicts the schematic perspective view of the plug of embodiment one.

Figure 23 depicts the structural representation of the plug of embodiment one.

Figure 24 depicts the structural representation of the adjustment seat of embodiment one.

Figure 25 depicts the schematic perspective view of the adjustment seat of embodiment one.

Figure 26 depicts the structural representation of the hinge of embodiment two.

Figure 27 depicts the structural representation of the second hinge of embodiment two.

Figure 28 depicts the structural representation of the first hinge of embodiment two.

Figure 29 depicts the structural representation of the blow-cook of embodiment two

Figure 30 depicts the structural representation of the positioning piston of embodiment two

Figure 31 depicts the structural representation of the cup of embodiment two

Figure 32 depicts the structural representation of the hinge of embodiment three

Figure 33 depicts the structural representation of the second blade of embodiment three

Figure 34 depicts the structural representation of the first blade of embodiment three

Figure 35 depicts the structural representation of the retaining spring of embodiment three.

Figure 36 depicts the structural representation of the first spring of embodiment three.

Figure 37 depicts the structural representation of the 3rd spring of embodiment three.

Figure 38 depicts the structural representation of the volution of embodiment three.

Specific embodiment

Embodiment one

When the self-positioning and self-closing hinge of vapour-pressure type energy, 0 degree to the 80 degree angle that is such as opened, hinge voluntarily can be exercised Arbitrary predetermined angular of self-closing and 80 degree of predetermined angulars to 180 degree predetermined angular can be self-positioning, can be suitable for being arranged at Such as butterfly hinge, H type hinges, master and slave type hinge, flag-shaped hinge, car in the hinge axle sleeve of any shape Can all arrange in door hinge, automobile fold-hinges and any peculiar hinge axle sleeve etc., be adapted for mount to appoint What door leaf and any door and window and any car door car door etc..

The hinge, refer to Fig. 1 to Figure 25, including the first hinge 10, the second hinge 20, solid bar 30, spiral shell Set 40, center 50, plug 60 and adjustment seat 70.It is solid that first hinge 10 sets one first blade 12 and The first axle sleeve 11 of the first blade 12 is connected on, second hinge 20 includes that one second blade 22 and is fixed in Second axle sleeve 21 of the second blade 22.The center 50 is connected in the first axle sleeve 11 and the second axle sleeve 21, First axle sleeve 11 and the second axle sleeve 21 are arranged side by side along center so that two hinges can be relatively rotated.In this Heart set 50 and the first axle sleeve 11 are respectively provided with inside and outside one and are run through along the size-spacing position of axis and axial and circumferential First row air inlet 55.First axle sleeve 11 sets an inside and outside first row air inlet 55 for running through, and is in auxiliary The first row air inlet 55 (first axle sleeve can also be without arranging first row air inlet 55 certainly) of heart set 50.

The swivel nut 40 can be rotated and can not be slidably connected in center 50, the first axle of first hinge 10 The part that set 11 and swivel nut 40 are stretched out outside center 50 is affixed, and this is affixed for example：One change 41 of another arranging, 40 top of swivel nut is convexly equipped with thin bar 42, and the thin bar 42 can rotationally pass through change 41, the change 41 to be adapted to 11 top of the first axle sleeve is located at, by arranging affixed screw 98 and locking through the first axle sleeve 11 and be locked into through turning Ring 41 being locked into affixed thin bar 42 so that the first axle sleeve 11 and change 41 and affixed with thin bar 42 together, should Change 41 and the first axle sleeve 11 can also limit the axially activity of swivel nut 40, Gu with energy positioning thread insert/bar along axis The axial and circumferential size-spacing position for rotating and sliding, is that relative guarantee cooperation 10 blade 12 of hinge can be pre- The fixed orientation angle for arranging is self-positioning.The plug 60 is connected in center 50, and the second of second hinge 20 The part that axle sleeve 21 and plug 60 are stretched out outside center 50 is affixed, and the affixed affixed screw 98 that for example arranges is locked Enter through the second axle sleeve 21 and affixed enter plug 60 in.

The swivel nut 40 and plug 60 are spaced, and are provided with solid bar between the swivel nut 40 and plug 60 in the center 50 30th, the first spring 81, centre mount 82, retaining spring 83 and check valve 90.It is additionally provided with the center 50 One cup 56, the cup 56 adjustably can be located in center 50 along 50 axis of center, the cup 56 Cup bottom opening.The centre mount 82 is blow-cook 82.Best：The first flange 51 is set in center 50, by One flange 51 is in center 50, it is impossible to is slidably connected and is fixed with volution 43, and the volution 43 is located at swivel nut The lower and screw rod 31 is bolted through volution 43 and is spirally connected again swivel nut 40, so that the volution 43 can limit and control this Screw rod 31 is rotated relative to swivel nut 40 and is slided and mobile, produced spacing dimension coefficient, with can positioning thread insert/ Gu the axial and circumferential size-spacing position that bar is rotated along axis and slided, is that relative guarantee coordinates 10 blade of hinge 12 can be self-positioning in the orientation angle of predetermined set.The check valve 90 is positioning piston 91.The center of hinge Set inherence is not provided with the situation of the first spring 81, hinge still can predetermined set orientation angle self-positioning.

The screw rod 31 of the solid bar 30 is spirally connected swivel nut 40 and solid bar 30 is provided with exhaust pition 33, exhaust pition 33 Sealing is slipped in center 50.The centre mount 82 be fixed at the opening of cup 51 and seal cup opening and The gap of center.The check valve 90 is located in cup 56.55 set location of first row air inlet is located at row Gas piston 33 is along the event trace of center；The first row air inlet 55 is along center 50 and the axis of axle sleeve With axial and circumferential size-spacing set location, 90 degree orientation angles of the corresponding hinge in a predetermined set orientation angle Degree starting point is self-positioning, and the self-closing boundary's point of energy below 90 degree orientation angles, and both hinge turned to a predetermined set 90 degree of orientation angle starting points of orientation angle are self-positioning, and can be self-closing below 90 degree of orientation angles boundary's point when, The corresponding check valve 90 of exhaust pition 33 and retaining spring and gas leakage blocking 92 and first row air inlet 55, with energy Constitute air-pressure chamber, at the same time the air-pressure chamber can correspond to and coordinate hinge can in the orientation angle of predetermined set oneself Positioning, so that hinge can be freely self-positioning in the 90 of predetermined set degree to 180 degree orientation angle so that closes Page can free predetermined set orientation angle.

By the first row air inlet 55, along the axial and circumferential size-spacing position of center 50 and axle sleeve 11 Install, and by 98 spiral shell of affixed screw enter through axle sleeve 11 be bolted through change 41 again interlocking fix thin Bar 42, make axle sleeve, change, thin bar affixed together, so that change 41 can coordinate hinge 10 and axle sleeve 11 Rotate so that change 41 and hinge 10 can limit the axially activity of swivel nut 40, Gu relative with can positioning thread insert/ The axial and circumferential size-spacing position that bar is rotated along axis and slided, and by hinge 10 and axle sleeve 11 Screw rod 31 and the threaded of swivel nut 40, with rotation slip that can be relative, and by the first flange 51 at center In set 50, it is impossible to be slidably connected and be fixed with volution 43, the volution 43 is located under swivel nut and 31 spiral shell of screw rod Connect through volution 43 and be spirally connected again swivel nut 40, so that the volution 43 can be limited and control the 31 relative swivel nut of screw rod 40 rotate and slide and mobile, produced spacing dimension coefficient, solid with can positioning thread insert/bar along axis rotation and The axial and circumferential size-spacing position of slip, so that the solid bar 30 in center 50 can be rotated relative to swivel nut 40 Slide, so that the exhaust pition 33 that solid bar 30 has, can produce the axial and circumferential size-spacing spiral of fixation Downwardly toward 90 activity of check valve, at the same time the gas in air pressure room is discharged by first row air inlet 55 Discharge with the second row pore 911 of check valve 90, at the same time exhaust pition 33 slips over first still further below Pore 55 is discharged into, now the gas in air pressure room is discharged by the second row pore 911 of check valve 90, So that exhaust pition 33 in center can corresponding check valve 90 and gas leakage blocking 92 and retaining spring 83 and the One discharges into pore 55, can be constituted air-pressure chamber, enables the exhaust pition in air pressure room to produce atmospheric pressure and (suction Power) balance is that relative guarantee hinge blades can free predetermined set orientation angle position.

81 contact of the first spring in the center between 30 bottom face of solid bar and centre mount 82, the positioning bullet Between centre mount 82 and check valve 90, the sealing of check valve 90 is located in cup 56 and is abutted against 83 contact of spring In cup 56, the exhaust pition 33 and check valve 90 and retaining spring 83 constitute air-pressure chamber.The check valve 90 are positioning piston 91.Wherein：The exhaust pition 33 that the solid bar 30 has is movable downwardly toward check valve 90, At the same time air pressure room air is discharged through first row air inlet 55, through blow-cook, the second row of check valve Pore 911 is discharged, now the first spring-compressed energy storage；First hinge 10 continues on through opening energy relative second 20 axis of hinge is rotated, so that the exhaust pition 33 that the solid bar 30 in the first axle sleeve 11 has can relative swivel nut Continue downward spiral slide, at the same time exhaust pition 33 after first row air inlet hole site is slipped over, at the same time Air in air pressure room is discharged through the second row pore 911 of blow-cook 82, check valve 90, so that center Exhaust pition 33 in set can corresponding check valve 90 and retaining spring 83 and gas leakage blocking 92 and first row air inlet Hole 55, so that air-pressure chamber can be constituted, the elastic force of the first spring 81 admittedly suffered by bar, self gravitation in the process, And the exhaust pition 33 in air pressure room can correspondingly position piston 91, retaining spring 83, so that the row in air pressure room Gas piston 33 can produce atmospheric pressure and (suction force) balances each other so that during this, the blade 12 of hinge 10 can be real Existing self-positioning, so that exhaust pition 33 can coordinate positions piston 91 and retaining spring 83, with can be in air pressure room (suction force) and atmospheric pressure is produced, exhaust pition 33 can be made in air pressure room relatively, the cooperation of energy mobility is closed 10 blades 12 of page are self-positioning in the orientation angle of predetermined set.10 blade 12 of hinge is closed through external force, with The 33 relative swivel nut spiral of exhaust pition for enabling the solid bar 30 in the first axle sleeve 11 to have is moved up, so that row Gas piston 33 bottom-up do not slide through first row air inlet 55 before, as long as at the same time exhaust pition 33 is under (suction force) and atmospheric pressure will be produced upwards, relative so that positioning piston 91 is by (the suction of exhaust pition 33 Power) and the atmospheric pressure of generation, and a predetermined angular is stopped at by bottom-up twitch to 10 blade 12 of hinge Self-positioning, at the same time the compressed energy-storage elastic force of the retaining spring 83 produces change, so that the retaining spring 83 One end can support to arrive in centre mount, the other end is with can the step that supports to arrive in positioning piston 91 of contact positioning piston 91 561, when at the same time positioning piston 91 is by the bottom-up twitch of exhaust pition, at the same time the 3rd spring 93 compressed energy-storage elastic force produces change, so that the 3rd spring one end can support to arrive in the cup bottom of cup, other end phase To being reset to the surface perisporium of positioning piston 91 with the pad 921 and stifled post 922 of energy contact gas leakage blocking 92, To completely cut off and prevent outside air from entering in air pressure room, so that exhaust pition 33 can be positioned from second row pore 911 In air pressure room, can realize that 10 blade 12 of hinge is self-positioning in the orientation angle of predetermined set relatively.This is fixed The energy storage elastic force of position spring 83 and spring pre-tightening force intensity are more powerful, so that 83 one end institute contact of retaining spring The tensile strength of positioning piston 91 is more powerful with respect to being bound to, and the retaining spring other end supports to arrive in centre mount, so that Exhaust pition 33 is bottom-up do not skid off (exiting) first row air inlet 55 before, born in air pressure room The intensity of atmospheric pressure and (suction force) is relative can be more powerful, relative so that hinge blade predetermined set positioning Self-positioning positioning dynamics in angle is relative can be more powerful, and the exhaust pition 91 skids off (exiting) bottom-up Behind 55 position of first row air inlet, so that the gas outside center 50 is entered in air pressure room from first row air inlet, Make to lose atmospheric pressure and suction force in air pressure room relatively, so that 10 blade 12 of hinge loses self-locating function, with The energy storage release of this simultaneously first spring 81, to drive solid bar 30 movable upwards so that hinge can realize self-closing.

Among one concrete structure：The check valve 90 include one can slip and seal air-pressure chamber cup 56 wall of cup Positioning piston 91, gas leakage blocking 92 and one the 3rd spring 93,91 center of positioning piston sets second exhaust Hole 911, the gas leakage blocking 92 include the stifled post 922 of a pad 921 and a projection at 921 center of pad, should The adaptation of stifled post 922 is stretched in second row pore 911,93 one end contact pad 921 of the 3rd spring, the other end Energy contact is at the cup bottom of cup 56.The cup 56 is provided with a step 561, and positioning piston 91 abuts against step 561 On, move along close 3rd spring, 93 direction for limiting positioning piston 91.911 end face of second row pore Recessed into taper hole from large to small relative to pad direction, in order to ensure sealing property, preferably, position piston 91 The mounting groove 913 of the recessed annular of the outer surface of revolution, mounting groove built with leakproof seal circle 912, the leakproof seal circle 912 also stretch out outside mounting groove 913, so that leakproof seal circle 912 is slidingly sealed the wall of cup for abutting against cup, with Completely cut off, prevent outside air from entering in the air pressure room of center from the wall of cup of cup 56.When exhaust pition down spiral shell When rotation is slided, the perisporium of the gas extrusion second row pore in air pressure room so that second row pore perisporium and stifled Gap is produced between post 922, and gas is discharged through the gap of second row pore perisporium and stifled post 922, by discharging gas Body extruding pad and stifled post cause pad 921 and stifled post 922 to shrink back so that pad and positioning piston diapire it Between produce gap, gas again by pad and positioning piston diapire between gap discharge, in the 3rd spring after discharge Energy storage elastic force and its own resilient effect under, so that the 3rd spring one end can support to arrive in the cup bottom of cup, the other end With the surface perisporium that energy contact pad 921 and stifled post 922 are reset to positioning piston, to completely cut off and prevent external sky Gas is penetrated in air-pressure chamber from second row pore 911.

The solid bar 30 also includes a bulge loop 32 for being fixed in 31 end of screw rod, and the 32 recessed annular of bulge loop is installed Groove 321, is socketed with leakproof seal circle 322 in the annular mounting groove 321, and the leakproof seal circle 322 also stretches out ring Outside shape mounting groove 321, slipped in center with sealing, penetrated in center with completely cutting off, preventing external air In air-pressure chamber, can be constituted air-pressure chamber, the leakproof seal circle constitutes above-mentioned exhaust pition.As needed, One slide of bar contact (such as direct contact passes through pivot pivot joint slide) can be consolidated, the slide is set to exhaust pition.

The adjustment seat 70 connects cup through plug, can adjust the axial location of the relative center of cup, with energy Energy storage elastic force and pretightning force and the air-pressure chamber cavity size of the first spring is adjusted, realizes adjusting self-closing dynamics size, Self-closing speed speed.The adjustment seat 70 such as screw rod, the screw rod are bolted through plug, and connect with the cup bottom of cup Together, this links together, and such as screw rod sets step surface, the bottom surface at step surface contact cup cup bottom, screw rod energy Turn through the opening at glass bottom, another arrange nut and be spirally connected screw rod end be resisted against the top surface at glass bottom.

As needed, may also include the volution 43 being located in center affixedly, the volution 43 be located at swivel nut and Between exhaust pition, volution is abutted against under swivel nut, and the screw rod of the solid bar is bolted through volution and is spirally connected again swivel nut.

Among the present embodiment：The first flange 51 is set in center 50, by the first flange 51 in center 50 Interior can not rotate and be slidably connected and affixed volution 43；A clutch shaft bearing is set between the swivel nut 40 and center 50 44 (by being arranged third lip 53 at center, can axially limit connection and be connected with clutch shaft bearing 44)；Should Gu second bearing 84 is set between 30 bottom face of bar and the first spring 81, (it is of course also possible to without arranging or can be with Second bearing is set 84)；The second flange 52 is set in center 50, plug 60 is prevented from phase by the second flange To rotating and being slidably connected and be fixed in center.The blow-cook 82 includes a pedestal 821, the pedestal 821 If one the 3rd steam vent 822, under the pedestal 821, horn body 823 is installed with, the pedestal 821 is supported on cup Rim of a cup periphery, the horn body 823 are located in cup, and the 3rd steam vent 822 connects 823 endoporus of horn body, 3rd steam vent is such as recessed into taper from large to small towards horn body direction by pedestal one end；The pedestal Center is abutted against in 821 sealings, preferably, the mounting groove 811 of the recessed annular of 821 side face of pedestal, the mounting groove 811 Built-in Lou sealing ring 824 of setting up defences, the leakproof seal circle 824 are also stretched out outside mounting groove 811, in being abutted against with sealing Heart set 50, to completely cut off and prevent external air from penetrating in the air-pressure chamber of center.The centre mount 82 and cup 56 Connected by affixed screw 98.322nd, 824,912,562 leakproof seal circles all have elasticity.The cup The mounting groove 560 of the recessed annular of the side face of the surface of revolution outside body wall of cup, the mounting groove 560 are arranged a leakproof seal circle 562, the leakproof seal circle 562 is also stretched out outside mounting groove 560, to completely cut off and prevent outside air from entering center Air pressure room in.The centre mount 82 and cup 56 are connected by affixed screw 98.322、824、912、 562 leakproof seal loop material matter all have elasticity, it is also possible to be made up of elastomeric material.Turn round outside 56 wall of cup of cup The mounting groove 560 of the recessed annular of the side face in face, the mounting groove 560 are arranged a leakproof seal circle 562, and the leakproof is close Seal 562 is also stretched out outside mounting groove 560, to completely cut off and prevent outside air from entering in the air pressure room of center.

As needed, the volution 43 being located in center affixedly may also include, and the volution 43 is located at swivel nut Between exhaust pition, volution is abutted against under swivel nut, and the screw rod of the solid bar is bolted through volution and is spirally connected again swivel nut. (certainly, without setting volution 43, or volution can also can be set 43) in the center.

First blade 12 of first hinge 10 is opened through external force and can be rotated relative to 20 axis of the second hinge, so that The 33 energy swivel nut downward spiral relatively of exhaust pition that solid bar 30 in first axle sleeve 11 has is lived towards check valve 90 Dynamic, at the same time the gas in air pressure room is discharged by first row air inlet, is discharged by check valve, Now the first spring-compressed energy storage；First hinge 10 continues on through opening and can rotate relative to 20 axis of the second hinge, So that 33 energy of the exhaust pition swivel nut relatively that the solid bar 30 in the first axle sleeve 11 has continues downward spiral slip and exists First row air inlet 55 is slipped over, at the same time the gas in air pressure room is discharged by check valve, so that center Exhaust pition 33 in set can corresponding check valve 90 and gas leakage blocking 92 and retaining spring 83 and first row air inlet Hole 55, so that air-pressure chamber can be constituted, the elastic force of the first spring admittedly suffered by bar, self gravitation, gas in the process Atmospheric pressure (suction force) balance of pressure chamber, so that the exhaust pition in air pressure room can correspondingly position piston and positioning bullet Spring and first row air inlet 55, so that the exhaust pition in air pressure room produces atmospheric pressure and (suction force) is balanced, make During this hinge realize self-positioning.Closed by external force so that hinge relative to hinge axis closure rotate, So that the 33 energy swivel nut spiral relatively of exhaust pition that the solid bar 30 in the first axle sleeve 11 has is moved up, aerofluxuss Piston in air pressure room bottom-up do not skid off (exiting) first row air inlet before so that the aerofluxuss in air pressure room Piston can correspondingly position piston, retaining spring, the exhaust pition institute that the solid bar in air pressure room has in the process The elastic force of the first spring that receives, self gravitation, atmospheric pressure and (suction force) balance, relative so that positioning piston quilt The suction force of exhaust pition and the atmospheric pressure that produces, and bottom-up twitched and bottom-up slip, extremely Hinge blades stop at a predetermined angular self-positioning after, at the same time the retaining spring compressed energy-storage elastic force produce Change, so that the retaining spring one end can support to arrive in centre mount, other end energy contact positioning piston (check valve) is extremely The step that positioning piston (check valve) is supported to arrive in, at the same time the positioning piston is by (suction force) of exhaust pition The atmospheric pressure of generation, and bottom-up twitched and bottom-up slide when, at the same time the 3rd bullet The compressed energy-storage elastic force of spring produces change so that the 3rd spring one end can support to arrive in the cup bottom of cup, the other end with The pad 921 and stifled post 922 of the gas leakage blocking of energy contact are reset to the surface perisporium of positioning piston (check valve), To completely cut off and prevent outside air from entering in air pressure room from second row pore, so that exhaust pition can be self-positioning in gas In pressure chamber, if exhaust pition is bottom-up do not skid off (exiting) first row air inlet before, just can be in air-pressure chamber Interior mobility cooperation hinge blades can be self-positioning in the orientation angle of predetermined set so that during this, hinge can be real Existing self-positioning.The intensity of the energy storage elastic force of the retaining spring in the air pressure room and pretightning force is more powerful, opposite side The contact tensile strength of the positioning piston of institute's contact is bound to more powerful, the retaining spring other end contact centre mount, Relative so that positioning piston in air pressure room is twitched and bottom-up slip by exhaust pition is bottom-up, here During exhaust pition in air pressure room suction force and the intensity of atmospheric pressure that produces is relative will be more powerful, So that hinge blades are more powerful with respect to being bound in the self-positioning positioning dynamics of predetermined angular.Hinge is closed through external force Can relative hinge axis rotation, exhaust pition is bottom-up without discharging into before pore, hinge can realize self-positioning, After exhaust pition slips over first row air inlet hole site, so that outside air is entered from first row air inlet among heart Enter in air pressure room, make in air pressure room, to lose atmospheric pressure and suction force relatively, so that the first blade of the first hinge loses Self-locating function is removed, at the same time the energy storage release of the first spring, so that solid bar can be driven movable upwards, so as to close Page can be realized self-closing.

The hinge blades are needed when the orientation angle of a predetermined set is positioned, when hinge blades are through opening, Be by 98 spiral shell of affixed screw enter through axle sleeve 11 be bolted through change 41 again interlocking fix thin bar 42, So that axle sleeve, change, thin bar are affixed together, the axial direction that the change 41 and hinge 10 can also limit swivel nut 40 is living Dynamic, Gu the axial and circumferential size-spacing position for rotating along axis and sliding with energy positioning thread insert/bar, and by closing The threaded of screw rod and swivel nut in the axle sleeve of page is with the relative rotation of energy, and passes through in first row air inlet edge The spacing dimension position of the axial and circumferential on heart set and axle sleeve is arranged, and by the exhaust pition energy in center Piston and retaining spring are positioned correspondingly, can be constituted air-pressure chamber, so that the exhaust pition in air pressure room produces air pressure Power and (suction force) are balanced, relative so as to position the atmospheric pressure that piston is produced by the suction force of exhaust pition And the bottom-up orientation angle that is twitched, can guarantee that relatively predetermined set hinge.The energy storage of the retaining spring Elastic force and spring pre-tightening force intensity are more powerful, the contact tensile strength one of the positioning piston 91 of opposite side institute contact Surely can be more powerful, the retaining spring other end supports to arrive in centre mount, so that bottom-up not the skidding off of exhaust pition (is moved back Go out) before first row air inlet, the atmospheric pressure born in air pressure room and the intensity of (suction force) is relative can be stronger Greatly, the compressed energy-storage elastic force of the retaining spring and spring pre-tightening force intensity necessarily ensure the pressure for being greater than the first spring Contracting energy storage elastic force and spring pre-tightening force intensity add compressed energy-storage elastic force and the spring pre-tightening force intensity of the 3rd spring, make Obtaining hinge blades can be self-positioning to 180 degree orientation angle in the 80 of predetermined set degree of orientation angles.

Wherein：The center of hinge can constitute air-pressure chamber, and the indispensable bar of the free predetermined set orientation angle of energy Part has following shuttling movement flow process details, when hinge blades are through opening, and is entered by 98 spiral shell of affixed screw Through axle sleeve 11, change 41 is bolted through, interlocking fixes thin bar 42 again, makes axle sleeve, change, thin bar affixed Rise, so that change 41 can coordinate the rotation of hinge 10 and axle sleeve 11, the change 41 and hinge 10 can also be limited The axially activity of axle sleeve 40, Gu with energy positioning thread insert/bar along between axis rotation and the axial and circumferential size that slides Away from position, and the first flange 51 is set by center 50, by the first flange 51 in center 50 and not Can be slidably connected and fixed spiro 43, and by the threaded of screw rod and swivel nut in the axle sleeve of hinge with energy Relatively rotate so that the solid bar in axle sleeve can relative swivel nut when rotating can also the rotation of relative axis move, and lead to 81 contact of the first spring that crosses in the center is between 30 bottom face of solid bar and centre mount 82 and fixed by this Position 83 contact of spring is located at cup between centre mount 82 and check valve 90, and by the sealing of check valve 90 In 56 and abut against in cup 56, and by first row air inlet 55 along center axis and axial and circumferential Size-spacing set location, and a leakproof seal circle is arranged by the outer surface of revolution of the cup wall of cup, and solid by this Sealing ring is socketed with outside bar, and the sealing ring constitutes above-mentioned exhaust pition, and is fixed in cup by the centre mount 82 At the opening of body 51 and the gap of cup opening and center is sealed, and by setting the second flange in center 50 52, prevent plug 60 to be slidably connected and be fixed in center 50 from relative by the second flange 52, this Second axle sleeve 21 of two hinges 20 and plug 60 stretch out the part connection outside center 50, and pass through the 3rd Spring one end contact pad and gas leakage blocking 92, other end energy contact is at the cup bottom of cup, so that hinge blades warp Can rotate relative to the axle sleeve axis of hinge when opening, so that the exhaust pition that solid bar has can relative swivel nut spiral Towards 90 activity of check valve, the gas in air pressure room is discharged slide downward by first row air inlet, and is passed through Check valve is discharged, at the same time the first spring-compressed energy storage, and hinge continues to rotate relative to hinge axis, with The exhaust pition for enabling solid bar to have continues slide downward with respect to swivel nut spiral and slips over behind first row air inlet hole site, At the same time the gas in air pressure room is discharged by the second row pore 911 of check valve, in hinge center Air-pressure chamber can be formed relatively.Wherein：The center 50 is provided with inside and outside one along axis and axial and circumferential position and runs through First row air inlet so that exhaust pition can correspond to check valve and discharge into first with retaining spring with gas leakage blocking Pore, can be constituted air-pressure chamber；The first row air inlet is along center and the axis and axial and circumferential chi of axle sleeve Very little spacing set location, corresponding hinge are self-positioning in 90 degree of orientation angle starting points of a predetermined set orientation angle, With below 90 degree of orientation angles can self-closing boundary's point, both hinge turn to the 90 of a predetermined set orientation angle Degree orientation angle starting point is self-positioning, and below 90 degree orientation angles during the self-closing boundary's point of energy, exhaust pition is corresponding Check valve and retaining spring and gas leakage blocking and first row air inlet, so that air-pressure chamber can be constituted, the at the same time gas Pressure chamber can be corresponded to and coordinate hinge with can be self-positioning in the orientation angle of predetermined set, so that hinge can be predetermined 90 degree for arranging are freely self-positioning to 180 degree orientation angle, and can be self-closing below 90 degree of orientation angles, Enable the free predetermined set orientation angle of hinge.

Embodiment two

It is with one difference of embodiment：Figure 26 to Figure 31 is refer to, the hinge is combined for butterfly-type hinge Body, first hinge 10 set the first axle sleeve 11 that one first blade 12 and two intervals are fixed in the first blade, should Second hinge 20 includes one second blade 22 and second axle sleeve 21 for being fixed in the second blade.Second axle sleeve The interval pitch adaptation of 21 wheelbase and two first axle sleeves 11, the adaptation of the second axle sleeve 21 are located at two first axle sleeves Between 11.The swivel nut 40 is fixed in one first axle sleeve 11 by affixed screw 98 and is rotatably connected on the second axle Cover in 21 one end；In the plug 60 is fixed in 21 one end of the second axle sleeve by affixed screw 98, and stretch out Part outside center 50 is connected in another first axle sleeve 11 so that the first hinge and the second hinge can be relative Rotate.Second axle sleeve 21 constitutes center 50, and the center 50 is provided with an inside and outside first row air inlet for running through Hole 55, the cup 56 and the second axle sleeve 21 same circumferential position along axis and axially, is respectively provided with one and inside and outside runs through Pore 95 is discharged into, (cup 56 and the second axle sleeve 21 can also discharge into pore 95 without arranging)；The positioning is lived 91 (check valves) 90 of plug change and set without second row pore 911, relative be without arranging gas leakage blocking 92, (should Positioning piston 91 is also also provided with second row pore 911 certainly and 92) gas leakage block.The cup 56 is with Heart set 50 discharges into 95 set location of pore, positioned at positioning piston 91 (check valve) 90 along 56 wall of cup of cup The up and down track of axial and circumferential in, the center 50 and cup 56 are along axis and axial and circumferential spacing Size positions, are respectively provided with one and discharge into pore 95, and (certainly, the cup 56 and the second axle sleeve 21 can also be without 95) setting discharges into pore, and the first row air inlet 55 is set along the axis and axial and circumferential size-spacing of center Seated position, corresponding hinge are self-positioning in 90 degree of orientation angle starting points of a predetermined set orientation angle, and 90 The self-closing boundary's point of energy below orientation angle is spent, both hinge turned to 90 degree of orientation angles of a predetermined set orientation angle Degree starting point is self-positioning, and below 90 degree orientation angles during the self-closing boundary's point of energy, 33 corresponding positioning of exhaust pition Piston 91 (check valve) and retaining spring 83 and first row air inlet 55, so that air-pressure chamber can be constituted, same with this When the air-pressure chamber can correspond to and coordinate hinge with can be self-positioning in the orientation angle of predetermined set so that hinge energy 90 degree in predetermined set are freely self-positioning to 180 degree orientation angle, and below 90 degree of orientation angles Can be self-closing.The positioning piston 91 is check valve 90.The plug is fixed in the other end of center, the swivel nut It is spaced with plug；Solid bar, the first spring, centre mount, positioning bullet is provided between the swivel nut and plug in the center Spring, positioning piston (check valve) and the 3rd spring；The screw rod of the solid bar is spirally connected swivel nut and solid bar is provided with aerofluxuss work Plug, exhaust pition sealing are slipped in center；First spring top is against between solid bar and centre mount, and this is fixed Position spring top is against between centre mount and positioning piston (check valve), and positioning piston (check valve) sealing sets In center, air-pressure chamber between the exhaust pition and positioning piston (check valve), is constituted；Wherein：The aerofluxuss are lived Plug towards positioning piston (check valve) activity, air pressure room air is discharged through first row air inlet, cup, The pore that discharges into of the second axle sleeve is discharged, after exhaust pition cunning is through first row air inlet hole site, in air pressure room Air is discharged through the pore that discharges into of cup, the second axle sleeve (center).Set between first spring and solid bar The bearing that puts changes and sets pad, yet can use certainly bearing.The volution 43 is by affixed screw 98 so that spiral shell Ring 43 slidably can not be fixed in the second axle sleeve 21 (center), (certainly can also be without in the center Volution is set 43), the volution 43 is located at swivel nut 40 times and the screw rod 31 and is bolted through volution 43 and is spirally connected again spiral shell Set 40, so that the volution 43 can be limited and control the screw rod 31 rotates slip and mobile, institute relative to swivel nut 40 The spacing dimension coefficient of generation, Gu with energy positioning thread insert/bar along between axis rotation and the axial and circumferential size that slides Away from position, it is that the relative blade for ensureing to coordinate hinge can free predetermined set orientation angle.The swivel nut is by affixed Screw 98 is fixed in another first axle sleeve 11 and is rotatably connected in 21 one end of the second axle sleeve, the plug 60 It is fixed in the second axle sleeve 21 by affixed screw 98 and is connected to 11 another first axle sleeve 11 1 of the first axle sleeve In end so that first hinge and the second hinge can be relatively rotated.

The swivel nut 40 can be rotated and can not be slidably connected in center 50, and another the of first hinge 10 The part that one axle sleeve 11 and swivel nut 40 are stretched out outside center 50 is affixed, and this is affixed for example：Arrange affixed screw 98 spiral shells enter through the first axle sleeve 11 be locked into affixed swivel nut 40, so that the first axle sleeve 11 and swivel nut 40 affixed Rise, make first hinge and the first axle sleeve limit the axially activity of swivel nut 40, Gu with energy positioning thread insert/bar The axial and circumferential size-spacing position for rotating along axis and sliding, is that relative guarantee coordinates 10 blade 12 of hinge Can be self-positioning in the orientation angle of predetermined set.The plug 60 is entered through center 50 by 98 spiral shell of affixed screw Being locked into affixed plug 60, so that plug 60 is fixed in center 50, another the of first hinge 10 One axle sleeve 11 and plug 60 stretch out the part connection outside center 50.

Hinge can be rotated relative to the axle sleeve axis of hinge through opening, so that the aerofluxuss that the solid bar in center has are lived Plug swivel nut downward spiral can pass through first row towards 91 activity of positioning piston, the at the same time gas in air pressure room relatively Air inlet is discharged, and cup, the second axle sleeve (center) discharge into pore and discharge, now the first spring Compressed energy-storage；The exhaust pition that solid bar in the axle sleeve of hinge has continues relative swivel nut axis downward spiral and slides, So that after exhaust pition slips over downwards first row air inlet hole site, at the same time the gas in air pressure room passes through cup Pore is discharged into the second axle sleeve (center) to discharge, so that the exhaust pition that the solid bar in center has Piston (check valve) and retaining spring and first row air inlet can be correspondingly positioned, so that air-pressure chamber, here can be constituted During the elastic force of the first spring suffered by solid bar, self gravitation, the exhaust pition in air pressure room correspondingly can position Piston, retaining spring, so that the exhaust pition in air pressure room can produce atmospheric pressure and (suction force) balances each other, Hinge during this is realized self-positioning.Hinge closed so that solid bar can relative swivel nut spiral upward sliding, Exhaust pition in air pressure room bottom-up do not skid off (exiting) first row air inlet before so that in air pressure room Exhaust pition can correspondingly position piston (check valve) and retaining spring, in the process the solid bar tool in air pressure room The elastic force of the first spring suffered by some exhaust pitions, self gravitation, atmospheric pressure and (suction force) balance each other, The relative atmospheric pressure for enabling positioning piston (check valve) and retaining spring to be produced by the suction force of exhaust pition, And bottom-up twitched and the bottom-up slip of the wall of cup in cup, stop at a predetermined angular to hinge After self-positioning, or bottom-up slide into when discharging into pore position so that outside air from the second axle sleeve (in Heart set), the pore that discharges into of cup enter in air pressure room, to hinge stop at an intended orientation angle self-positioning after, At the same time the compressed energy-storage elastic force of the retaining spring produces change, so that retaining spring one end can support to arrive in centre mount, Other end energy contact positions piston, and at the same time the compressed energy-storage elastic force of the 3rd spring produces change, so that the Three spring one ends can support to arrive in cup cup bottom, and other end energy contact positions piston, so that the 3rd spring and retaining spring It is engaged, relatively with energy mutually contact positioning piston (check valve) to reset, or so that the 3rd spring and positioning Spring cooperates, relative mutually contact positioning piston (check valve) extremely resetting, empty can completely cut off outside Discharge into pore of the gas again from center and cup is entered in air pressure room, with the period positioning piston by exhaust pition (suction force) and the atmospheric pressure balance that produces so that the exhaust pition in center correspondingly to position piston (single To valve) and retaining spring, so that exhaust pition can be self-positioning in air pressure room, as long as exhaust pition is not skidded off (moving back Go out) before first row air inlet, just can mobility coordinate in air pressure room hinge predetermined set orientation angle from Positioning.The intensity of the energy storage elastic force of the retaining spring in the air pressure room and pretightning force is more powerful, and opposite side is pushed up The contact tensile strength of the positioning piston for supporting is bound to more powerful, the retaining spring other end contact centre mount, phase To so that positioning piston in air pressure room is twitched and bottom-up slip by exhaust pition is bottom-up, here mistake The suction force of the exhaust pition in journey in air pressure room and the intensity of atmospheric pressure that produces is relative will be more powerful, with Make the blade of hinge more powerful with respect to being bound in the self-positioning positioning dynamics of predetermined angular.Exhaust pition from lower to Upper do not skid off (exiting) first row air inlet before, hinge can be realized self-positioning, and exhaust pition is slipped over and (moved back Go out) behind first row air inlet hole site, so that the outside air of center is entered from first row air inlet among heart Enter in air pressure room, at the same time the energy storage release of the first spring, to drive solid bar movable upwards, hinge can be realized Self-closing.The compressed energy-storage elastic force of the retaining spring and spring pre-tightening force intensity necessarily ensure to be greater than the first spring Compressed energy-storage elastic force and spring pre-tightening force intensity add compressed energy-storage elastic force and the spring pre-tightening force intensity of the 3rd spring, Enable hinge blades self-positioning to 180 degree orientation angle in 80 degree of orientation angles of predetermined set.

Wherein：The center of hinge can constitute air-pressure chamber, and the indispensable bar of the free predetermined set orientation angle of energy Part has following shuttling movement flow process details, when hinge blades are through opening, be can be rotated by the swivel nut 40 and Can not be slidably connected in center 50, during the first axle sleeve 11 of first hinge 10 and swivel nut 40 stretch out Part outside heart set 50 is affixed, and this is affixed for example：Arrange 98 spiral shell of affixed screw to enter through the first axle sleeve 11 in lock Affixed swivel nut 40 is connect, first hinge and first axle put the axially activity that end can also limit axle sleeve 40, with Gu the axial and circumferential size-spacing position that energy positioning thread insert/bar is rotated along axis and slided, and by the axle of hinge The threaded of screw rod and swivel nut in set is relatively rotating, so that the solid bar in axle sleeve can be rotated relative to swivel nut When can also the rotation of relative axis slide, and by 81 contact of the first spring in the center at 30 bottom of solid bar Between end face and centre mount 82, and by 83 contact of retaining spring centre mount 82 and positioning piston 91 it Between, and be located in cup 56 by the sealing of positioning piston 91 and abutted against in cup 56, and pass through first row Axis and axial and circumferential size-spacing set location of the air inlet 55 along center, and by outside the cup wall of cup The surface of revolution is arranged a leakproof seal circle, and is entered through the second axle sleeve 21 in interlocking volution by 98 spiral shell of affixed screw 43, so as to volution 43 can not be slidably connected be fixed in center 50, the volution 43 is located under swivel nut 40 And the screw rod 31 is bolted through volution 43 and is spirally connected again swivel nut 40, so that the volution 43 can be limited and control the spiral shell Bar 31 is rotated relative to swivel nut 40 and is slided and mobile, produced spacing dimension coefficient, Gu with energy positioning thread insert/bar The axial and circumferential size-spacing position for rotating along axis and sliding, and by being socketed with sealing ring outside the solid bar, The sealing ring constitutes above-mentioned exhaust pition, and is fixed in by the centre mount 82 at the opening of cup 51 and close Sealing cup body opening and the gap of center, and entered through center by 98 spiral shell of affixed screw by the plug 60 50 in interlocking plug 60, so that plug 60 is fixed in center 50, the first axle sleeve of first hinge 10 11 and plug 60 stretch out outside center 50 part connection, and by the 3rd spring one end contact position piston, Other end energy contact at the cup bottom of cup so that hinge blades through opening when can the axle sleeve axis of relative hinge turn Dynamic, so that the exhaust pition that solid bar has swivel nut downward spiral can be slided towards 91 activity of positioning piston, air pressure relatively Indoor gas is discharged by first row air inlet, and is outwards arranged by the pore that discharges into of cup, center Go out, at the same time the first spring-compressed energy storage, hinge continues to rotate relative to another hinge axis, so that aerofluxuss are lived After first row air inlet hole site is slipped over, at the same time the gas in air pressure room passes through cup, the row of center to plug Air inlet is discharged, and can constitute air-pressure chamber in hinge center relatively.Wherein：The center 50 along axis and Axial and circumferential position is provided with an inside and outside first row air inlet for running through so that exhaust pition can correspond to check valve and Retaining spring and first row air inlet, can be constituted air-pressure chamber；The first row air inlet along center axis and Axial and circumferential size-spacing set location, 90 degree orientation angles of the corresponding hinge in a predetermined set orientation angle Starting point is self-positioning, and can be self-closing below 90 degree of orientation angles boundary's point, both to turn to a predetermined set fixed for hinge 90 degree of orientation angle starting points of parallactic angle degree are self-positioning, and can be self-closing below 90 degree of orientation angles boundary's point when, The exhaust pition correspondingly positions piston and retaining spring and first row air inlet 55, can be constituted air-pressure chamber, with this The air-pressure chamber can be corresponded to and coordinate hinge with can be self-positioning in the orientation angle of predetermined set simultaneously, so that hinge Can be freely self-positioning in the 90 of predetermined set degree to 180 degree orientation angle, and 90 degree of orientation angles with Lower energy is self-closing so that hinge can free predetermined set orientation angle.

Embodiment three

It is with two difference of embodiment：Figure 32 to Figure 38 is refer to, the hinge is master and slave type hinge set Zoarium, first hinge 10 set the first axle sleeve that one first blade 12 and two intervals are fixed in the first blade 12 11, second hinge 20 includes one second blade 22 and second axle sleeve 21 for being fixed in the second blade 22. First axle sleeve 11 of first hinge 10 is fixed in the upper and lower end parts of the first blade 12, and second axle sleeve 21 is solid The middle part of the second blade 22 is connected on, in the middle part of first blade 12, breach is set, the adaptation breach of the second blade 22. The interval pitch adaptation of the wheelbase of second axle sleeve 21 and two first axle sleeves 11, the adaptation of the second axle sleeve 21 are located at Between two first axle sleeves 11.The swivel nut 40 is fixed in the first axle sleeve 11 by affixed screw 98, and the company of rotation It is connected in 21 one end of the second axle sleeve；The plug 60 is fixed in the second axle sleeve 21 by affixed screw 98 and is stretched The part gone out outside center 50 is connected in another first axle sleeve 11 so that the first hinge and the second hinge energy phase To rotating.Second axle sleeve 21 constitutes center 50, the center 50 position along the axial and circumferential directions, is provided with one The inside and outside first row air inlet for running through so that exhaust pition can correspond to check valve and retaining spring and gas leakage blocking and First row air inlet, can be constituted air-pressure chamber；The first row air inlet is along the axial direction of the axis and axle sleeve of center With circumferential size spacing set location, 90 degree orientation angle starting points of the corresponding hinge in a predetermined set orientation angle Self-positioning, and can be self-closing below 90 degree of orientation angles boundary's point, both hinge turn to a predetermined set orientation angle 90 degree orientation angle starting points of degree are self-positioning, and below 90 degree of orientation angles during the self-closing boundary's point of energy, aerofluxuss The corresponding check valve of piston and retaining spring and first row air inlet, so that air-pressure chamber can be constituted, the at the same time air pressure Room can correspond to and coordinate hinge with can be self-positioning in the orientation angle of predetermined set, so that hinge can be set predetermined 90 degree for putting are freely self-positioning to 180 degree orientation angle.The volution 43 is by affixed screw 98 so that spiral shell Ring 43 can not be slidably connected and be fixed in the second axle sleeve 21 (center), (can also be without in the center Volution is set 43), the volution 43 is located at swivel nut 40 times and the screw rod 31 and is bolted through volution 43 and is spirally connected again spiral shell Set 40, so that the volution 43 can be limited and control the screw rod 31 rotates slip and mobile, institute relative to swivel nut 40 The spacing dimension coefficient of generation, Gu with energy positioning thread insert/bar along between axis rotation and the axial and circumferential size that slides Away from position, it is that the relative orientation angle for ensureing the free predetermined set of 10 blade of cooperation hinge, 12 energy is self-positioning.Should Swivel nut is fixed in another first axle sleeve 11 by affixed screw 98 and is rotatably connected on 21 one end of the second axle sleeve Interior, the plug 60 is fixed in the second axle sleeve 21 by affixed screw 98 and to be connected to the first axle sleeve 11 another First axle sleeve 11 so that first hinge and the second hinge can be relatively rotated.The plug 60 passes through affixed screw 98 are fixed in the second axle sleeve 21 and are connected in 11 another first axle sleeve one end of the first axle sleeve, the swivel nut 40 It is fixed in another first axle sleeve 11 by affixed screw 98 and is rotatably connected in 21 one end of the second axle sleeve, should Swivel nut and plug interval；Solid bar, the first spring, centre mount, fixed is provided between the swivel nut and plug in the center Position spring, check valve and the 3rd spring；The screw rod of the solid bar is spirally connected swivel nut and solid bar is provided with exhaust pition, aerofluxuss Piston seal is slipped in center；First spring top is against between solid bar and centre mount, the retaining spring top Be against between centre mount and check valve, check valve sealing is located in center, the exhaust pition and check valve and Retaining spring and gas leakage blocking 92 and first row air inlet constitute air-pressure chamber.

The swivel nut 40 can be rotated and can not be slidably connected in center 50, the swivel nut 40 stretches out center Part and the first axle sleeve 11 outside 50 is affixed, and this is affixed for example：Arrange 98 spiral shell of affixed screw to enter through first axle Set is 11 in interlocking swivel nut 40, so that the first axle sleeve 11 and swivel nut 40 are affixed together, makes first hinge and the One axle sleeve can also limit the axially activity of swivel nut 40, Gu the axle for rotating along axis and sliding with energy positioning thread insert/bar To with circumferential size spaced position, self-positioning and self-closing to ensure that hinge is realized.The plug 60 passes through affixed screw 98 spiral shells enter through center 50 is locking affixed plug 60, so that plug 60 is fixed in center 50, is somebody's turn to do Another first axle sleeve 11 of the first hinge 10 and plug 60 stretch out the part connection outside center 50.

By the first row air inlet 55, along the axial and circumferential size-spacing position of center 50 and axle sleeve 11 Install, and can be rotated by the swivel nut 40 and can not be slidably connected in center 50, first hinge The part that 10 the first axle sleeve 11 and swivel nut 40 are stretched out outside center 50 is affixed, and this is affixed for example：Arrange solid Connect 98 spiral shell of screw to enter through the first axle sleeve 11 in the affixed swivel nut 40 of interlocking, first hinge and the first axle sleeve can also The axially activity of swivel nut 40 is limited, Gu the axial and circumferential chi for rotating along axis and sliding with energy positioning thread insert/bar Very little spaced position, and the threaded by screw rod 31 and swivel nut 40 in hinge 10 and axle sleeve 11, with energy Relative rotation is slided, and is entered through the second axle sleeve 21 locking volution 43 by 98 spiral shell of affixed screw, so that Volution 43 can not be slidably connected and be fixed in center 50, and the volution 43 is located under swivel nut and the screw rod 31 It is bolted through volution 43 to be spirally connected again swivel nut 40, so that the volution 43 can be limited and control the 31 relative spiral shell of screw rod Set 40 is rotated and is slided and mobile, produced spacing dimension coefficient, Gu rotated along axis with energy positioning thread insert/bar And the axial and circumferential size-spacing position that slides, so that the solid bar 30 in center 50 can relative swivel nut 40 Rotate and slide, so that the axial and circumferential size-spacing downward spiral of fixation can be produced towards 90 activity of check valve, with this Gas in air pressure room discharges the second row pore with check valve 90 by first row air inlet 55 simultaneously 911 discharge, and exhaust pition 33 slips over downwards first row air inlet 55, at the same time the gas in air pressure room Discharged by the second row pore 911 of check valve 90, so that the exhaust pition 33 in center can be corresponding Check valve 90 and gas leakage blocking 92 and retaining spring 83 and first row air inlet 55, so that air-pressure chamber can be constituted, Enable the exhaust pition in air pressure room to produce atmospheric pressure and (suction force) to balance so that hinge can realize self-closing.

The screw rod 31 of the solid bar 30 is spirally connected swivel nut 40 and solid bar 30 is provided with exhaust pition 33, exhaust pition 33 Sealing is slipped in center 50.The centre mount 82 be fixed at the opening of cup 51 and seal cup opening and The gap of center.

Among one concrete structure：The check valve 90 include one can slip and seal air-pressure chamber cup 56 wall of cup Positioning piston 91, gas leakage blocking 92 and one the 3rd spring 93,91 center of positioning piston sets second exhaust Hole 911, the gas leakage blocking 92 include the stifled post 922 of a pad 921 and a projection at pad center, the stifled post 922 adaptations are stretched in second row pore 911, the 3rd spring one end contact pad, and other end energy contact is in cup The cup bottom of body, (check valve 90 is exactly to position piston 91).The cup 56 is provided with a step 561, and positioning is lived Plug is abutted against on step, is moved along close 3rd spring direction for limiting positioning piston.The second row pore 911 End face is recessed into taper hole from large to small relative to pad direction, in order to ensure sealing property, preferably, positions piston The mounting groove 913 of the recessed annular of the outer surface of revolution, mounting groove built with leakproof seal circle 912, the leakproof seal circle 912 also stretch out outside mounting groove 913, so that leakproof seal circle 912 is slidingly sealed the wall of cup for abutting against cup.When Exhaust pition is down when helical rotation, the perisporium of the gas extrusion second row pore in air pressure room so that second Gap is produced between steam vent perisporium and stifled post 922, and gas is arranged through the gap of second row pore perisporium and stifled post 922 Go out, pad 921 and stifled post 922 shunk back by discharging gas extrusion pad and stifled post so that pad and Gap is produced between positioning piston diapire, then is discharged by the gap between pad and positioning piston diapire, after discharge In the case where the energy storage elastic force and its own resilient of the 3rd spring are acted on, so that the 3rd spring one end can support to arrive in the cup of cup Bottom, the other end with can contact pad 921 and stifled post 922 be reset to the surface perisporium of positioning piston, completely cutting off and Prevent external air from penetrating in air-pressure chamber from second row pore 911.

The solid bar 30 also includes a bulge loop 32 for being fixed in 31 end of screw rod, and the 32 recessed annular of bulge loop is installed Groove 321, is socketed with leakproof seal circle 322 in the annular mounting groove 321, and the leakproof seal circle 322 also stretches out ring Outside shape mounting groove 321, slipped in center with sealing, the leakproof seal circle constitutes above-mentioned exhaust pition.Root According to needs, can also consolidate one slide of bar contact (such as direct contact passes through pivot pivot joint slide), the slide is set to arrange Gas piston.

The adjustment seat 70 connects cup through plug, can adjust the axial location of the relative center of cup, with energy Energy storage elastic force and pretightning force and the air-pressure chamber cavity size of the first spring is correspondingly adjusted, realizes adjusting self-closing great efforts Little, self-closing speed speed.The adjustment seat 70 such as screw rod, the screw rod are bolted through plug, and the cup bottom with cup Link together, this links together, such as screw rod sets step surface, the bottom surface at step surface contact cup cup bottom, spiral shell Bar can turn through the opening at glass bottom, another arrange nut and be spirally connected screw rod end be resisted against the top surface at glass bottom.

Among the present embodiment：Entered through the second axle sleeve 21 being locked into affixed volution 43 by 98 spiral shell of affixed screw, So as to volution 43 can not be slidably connected be fixed in center 50, the volution 43 is located at swivel nut 40 times and is somebody's turn to do Screw rod 31 is bolted through volution 43 and is spirally connected again swivel nut 40, so that the volution 43 can be limited and control the screw rod 31 Rotate relative to swivel nut 40 and slide and mobile, produced spacing dimension coefficient, Gu turning with energy positioning thread insert/bar Axial and circumferential size-spacing position that is dynamic and sliding；A clutch shaft bearing 44 is set between the swivel nut 40 and center 50 (by being arranged third lip 53 at center, can axially limit connection and be connected with clutch shaft bearing 44)；This is solid Second bearing 84 is set between 30 bottom face of bar and the first spring 81, (it is of course also possible to without arranging or can set Put second bearing 84)；The second flange 52 is set in center 50, plug 60 is prevented from relative by the second flange Rotate and be slidably connected and be fixed in center.The blow-cook 82 includes a pedestal 821, the pedestal 821 If one the 3rd steam vent 822, under the pedestal 821, horn body 823 is installed with, the pedestal 821 is supported on cup Rim of a cup periphery, the horn body 823 are located in cup, and the 3rd steam vent 822 connects 823 endoporus of horn body, 3rd steam vent is such as recessed into taper from large to small towards horn body direction by pedestal one end；The pedestal Center is abutted against in 821 sealings, preferably, the mounting groove 811 of the recessed annular of 821 side face of pedestal, the mounting groove 811 Built-in Lou sealing ring 824 of setting up defences, the leakproof seal circle 824 are also stretched out outside mounting groove 811, in being abutted against with sealing Heart set 50, to completely cut off and prevent external air from penetrating in the air-pressure chamber of center.The centre mount 82 and cup 56 Connected by affixed screw 98.322nd, 824,912,562 leakproof seal circles all have elasticity, also may be used To be made up of elastomeric material.The mounting groove 560 of the recessed annular of the side face of the surface of revolution, the installation outside the cup wall of cup Groove 560 is arranged a leakproof seal circle 562, and the leakproof seal circle 562 is also stretched out outside mounting groove 560, to completely cut off In the air pressure room for preventing outside air entrance center.

First blade 12 of the first hinge 10 of hinge is opened through external force and can be rotated relative to 20 axis of the second hinge, So that the exhaust pition 33 that has of the solid bar 30 in the second axle sleeve 21 can relative swivel nut downward spiral slide towards unidirectional 90 activity of valve, at the same time the gas in air pressure room is discharged by first row air inlet, by check valve Second row pore 911 is discharged, now the first spring-compressed energy storage；First hinge 10 continues on through opening can phase Second hinge, 20 axis is rotated further, so that the exhaust pition 33 that the solid bar 30 in the second axle sleeve 21 has The relative swivel nut of energy continues downward spiral slip and is slipping over first row air inlet 55, and now the gas in air pressure room passes through Check valve is discharged so that exhaust pition can correspond to check valve and retaining spring and gas leakage blocking and first is discharged into Pore, so that air-pressure chamber can be constituted, the elastic force of the first spring admittedly suffered by bar, self gravitation, gas in the process The atmospheric pressure (suction force) of pressure chamber balances each other, and the exhaust pition in air-pressure chamber coordinates positioning piston, positioning bullet Spring is so that the exhaust pition in air pressure room produces atmospheric pressure and (suction force) so that during this, hinge is realized making by oneself Position.Closed by external force so that hinge is rotated relative to hinge axis closure, exhaust pition is in the air pressure room under Do not skidded off before (exiting) discharge into pore upwards, so that the exhaust pition in air pressure room can correspondingly position piston, fixed Position spring, the elastic force of the first spring suffered by exhaust pition that the solid bar in air pressure room has in the process, from Heavy sensation of the body power, atmospheric pressure and (suction force), relative so that positioning piston is produced by (suction force) of exhaust pition Atmospheric pressure, and bottom-up twitched and bottom-up slip, stop at one to hinge blades and predetermined set After the orientation angle put is self-positioning, at the same time the compressed energy-storage elastic force of the retaining spring produces change, with support The step that centre mount is supported to arrive in positioning piston (check valve) with energy support positioning piston (check valve), same with this When the atmospheric pressure that produced by the suction force of exhaust pition of the positioning piston, and bottom-up twitched and under When upward sliding, the compressed energy-storage elastic force of the 3rd spring produces change, so that the 3rd spring one end energy The cup bottom of cup is supported to arrive in, it is fixed that the relative pad 921 and stifled post 922 with the gas leakage blocking of energy contact of the other end is reset to The surface perisporium of position piston (check valve), is entered in air pressure room from second row pore with completely cutting off outside air, with Enable exhaust pition self-positioning in air pressure room, as long as exhaust pition is bottom-up not to skid off (exiting) first row Before air inlet, just can in air pressure room mobility coordinate hinge blades can be self-positioning in the orientation angle of predetermined set, Hinge during this is realized self-positioning.The energy storage elastic force of the retaining spring in the air pressure room and pretightning force are strong Degree is more powerful, and the contact tensile strength of the positioning piston of opposite side institute contact is bound to more powerful, the positioning bullet Spring other end contact centre mount is relative so that positioning piston in air pressure room is twitched by exhaust pition is bottom-up And bottom-up slip, in the process the suction force of the exhaust pition in air pressure room and the atmospheric pressure that produces it Intensity is relative will be more powerful, so that the blade of hinge is relative in the self-positioning positioning dynamics of an intended orientation angle It is bound to more powerful.The compressed energy-storage elastic force of the retaining spring and spring pre-tightening force intensity necessarily ensure to be greater than the The compressed energy-storage elastic force of one spring and spring pre-tightening force intensity add the compressed energy-storage elastic force and spring pre-tightening of the 3rd spring Force intensity so that hinge blades can be self-positioning to 180 degree orientation angle in the 80 of predetermined set degree of orientation angles.

Wherein：The center of hinge can constitute air-pressure chamber, and the indispensable bar of the free predetermined set orientation angle of energy Part has following shuttling movement flow process details, when hinge blades are through opening, is entered to wear by the affixed screw spiral shell Cross first axle and be enclosed within spiral shell and enter to lock swivel nut, so that swivel nut is affixed and is connected in the second axle sleeve in the first axle sleeve, The first axle of first hinge puts the axially activity that end can also limit axle sleeve 40, Gu with energy positioning thread insert/bar Rotation and slip axial and circumferential size-spacing position, and by the screw rod and swivel nut in the axle sleeve of hinge Threaded relatively rotating so that the solid bar in axle sleeve can relative swivel nut when rotating can also relative axis turn Dynamic slip, and by 81 contact of the first spring in the center between 30 bottom face of solid bar and centre mount 82, And by 83 contact of retaining spring between centre mount 82 and check valve 90, and pass through the positioning piston 91 Sealing is located in cup 56 and abuts against in cup 56, and by first row air inlet 55 along center axis With axial and circumferential size-spacing set location, and a leakproof seal circle is arranged by the outer surface of revolution of the cup wall of cup, With by being socketed with sealing ring outside the solid bar, the sealing ring constitutes above-mentioned exhaust pition, and passes through the centre mount At 82 openings for being fixed in cup 51 and the gap of cup opening and center is sealed, and led to by the plug 60 Cross 98 spiral shell of affixed screw to enter through center 50 in interlocking plug 60, so that plug 60 is fixed in center 50 Interior, the part that the first axle sleeve 11 of first hinge 10 and plug 60 are stretched out outside center 50 connects, and logical The 3rd spring one end contact pad and gas leakage blocking 92 is crossed, other end energy contact is at the cup bottom of cup, so as to close Page vanes can be rotated relative to the axle sleeve axis of hinge when opening, so that the exhaust pition that solid bar has can be relative Swivel nut downward spiral is slided, and exhaust pition downward spiral is movable towards check valve 90, at the same time the gas in air pressure room Body is discharged by first row air inlet, and is discharged by the second row pore 911 of check valve 90, with This first spring-compressed energy storage simultaneously, hinge continue to rotate relative to hinge axis, and exhaust pition is discharged into through first Behind pore position, at the same time the gas in air pressure room is discharged by the second row pore 911 of check valve 90, So that air-pressure chamber can be formed.Wherein：The center 50 is provided with one along axis and axial and circumferential position and inside and outside runs through First row air inlet so that exhaust pition can correspond to check valve and retaining spring and gas leakage blocking and first row air inlet Hole, can be constituted air-pressure chamber；The first row air inlet is set along the axial and circumferential size-spacing of center and axle sleeve Seated position, corresponding hinge are self-positioning in 90 degree of orientation angle starting points of a predetermined set orientation angle, and 90 The self-closing boundary's point of energy below orientation angle is spent, both hinge turned to 90 degree of orientation angles of a predetermined set orientation angle Degree starting point is self-positioning, and below 90 degree orientation angles during the self-closing boundary's point of energy, exhaust pition can correspond to check valve With positioning piston and gas leakage blocking and first row air inlet, so that air-pressure chamber can be constituted, the at the same time air-pressure chamber energy Hinge is corresponded to and is coordinated with can be self-positioning in the orientation angle of predetermined set, so that hinge can be in predetermined set 90 degree freely self-positioning to 180 degree orientation angle, and self-closing can make relatively below 90 degree of orientation angles Hinge can free predetermined set orientation angle.

The above, only present pre-ferred embodiments, therefore the scope of present invention enforcement can not be limited according to this, The equivalence changes that is made according to the scope of the claims of the present invention and description and modification, all should still belong to the present invention and cover In the range of.

Claims

1. the self-positioning and self-closing hinge of vapour-pressure type energy, including two hinges, consolidates bar and swivel nut, and each hinge is all If an axle sleeve and is fixed in the blade outside axle sleeve, two hinge can be relatively rotated, and the solid bar has screw rod； It is characterized in that：Also include plug and center, the center and axle sleeve are along axis and the chi of axial and circumferential Very little spaced position, is respectively provided with an inside and outside first row air inlet for running through；The center is socketed in the axle of two hinges In set；The swivel nut rotationally can be located in center and an affixed axle sleeve, and the plug is located in center and solid Connect another axle sleeve, the swivel nut and plug interval, be provided between the swivel nut and plug in the center solid bar, first Spring, centre mount, retaining spring and check valve；The screw rod of the solid bar is spirally connected swivel nut and solid bar is provided with aerofluxuss work Plug, exhaust pition sealing are slipped in center；First spring top is against between solid bar and centre mount, should Between centre mount and check valve, the check valve sealing is located in center retaining spring contact, and the aerofluxuss are lived Air-pressure chamber is constituted between plug and check valve；Wherein：Towards check valve activity, gas room air is through for the exhaust pition One discharges into pore, check valve discharges, after exhaust pition cunning is through first row air inlet hole site, in air pressure room Air discharge through check valve.

2. the self-positioning and self-closing hinge of vapour-pressure type energy, including the first hinge, the second hinge, consolidates bar and swivel nut, First hinge sets the first axle sleeve that one first blade and two intervals are fixed in the first blade, the second hinge bag One second blade and second axle sleeve for being fixed in the second blade is included, second axle sleeve adaptation is located at two first axles Inner room, first hinge and the second hinge can be relatively rotated, and the solid bar has screw rod；It is characterized in that：Also Including plug, the swivel nut is fixed in one first axle sleeve and is rotatably connected in second axle sleeve one end, the plug It is fixed in the second axle sleeve and is connected in another first axle sleeve one end, second axle sleeve constitutes center, should Center is arranged with an inside and outside first row air inlet for running through, and the cup and axle sleeve are along axis and axial and circumferential Size-spacing position, be respectively provided with one inside and outside run through discharge into pore；The plug is fixed in the other end of center Interior, the swivel nut and plug interval；Be provided between the swivel nut and plug in the center solid bar, the first spring, in Heart seat, retaining spring and positioning piston；The screw rod of the solid bar is spirally connected swivel nut and solid bar is provided with exhaust pition, arranges Gas piston seal is slipped in center；First spring top is against between solid bar and centre mount, the positioning bullet Between centre mount and positioning piston, the positioning piston seal is located in center spring contact, the exhaust pition Air-pressure chamber is constituted with positioning piston space；Wherein：The exhaust pition is towards positioning piston activity, air pressure room air Pore is discharged into through first row air inlet, cup and center to discharge, exhaust pition cunning is through first row air inlet Behind hole site, the air in air pressure room discharges into pore through cup and center and discharges.

3. vapour-pressure type according to claim 1 and 2 can self-positioning and self-closing hinge, it is characterised in that： The check valve includes that one can slip and seal the positioning piston of air-pressure chamber, gas leakage blocking and one the 3rd spring, The positioning piston centre sets second row pore, and the gas leakage blocking includes a pad and a projection at pad center Stifled post, the stifled post adaptation are stretched in second row pore, the 3rd spring one end contact pad, other end energy phase To contact plug.

4. vapour-pressure type according to claim 3 can self-positioning and self-closing hinge, it is characterised in that：In this Heart seat is blow-cook.

5. vapour-pressure type according to claim 4 can self-positioning and self-closing hinge, it is characterised in that：Also wrap A cup is included, the cup adjustably can be located in center along center；The check valve is located in cup, should Centre mount is fixed in cup.

6. vapour-pressure type according to claim 5 can self-positioning and self-closing hinge, it is characterised in that：Also wrap Adjustment seat is included, the cup adjustably can be located in center along center, the adjustment seat connects cup through plug Body, can adjust the axial location of the relative center of cup.

7. vapour-pressure type according to claim 6 can self-positioning and self-closing hinge, it is characterised in that：The cup Body is provided with a step, and for limiting positioning piston along moving near the 3rd spring direction, the 3rd spring top is supported Between the cup bottom of cup and pad.

8. vapour-pressure type according to any one of claim 1 to 3 can self-positioning and self-closing hinge, which is special Levy and be：Outside the solid bar, sealing ring is socketed with, the sealing ring constitutes above-mentioned exhaust pition.

9. vapour-pressure type according to any one of claim 1 to 3 can self-positioning and self-closing hinge, which is special Levy and be：Also include can the volution that be located in center affixedly, the volution be located at swivel nut and exhaust pition it Between, the screw rod of the solid bar is bolted through volution and is spirally connected again swivel nut.