CN107780743B

CN107780743B - High sealed door pneumatic self-positioning and self-closing hinge

Info

Publication number: CN107780743B
Application number: CN201610795041.3A
Authority: CN
Inventors: 吴裕龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2021-01-29
Anticipated expiration: 2036-08-31
Also published as: CN107780743A

Abstract

The invention discloses a pneumatic self-positioning and self-closing hinge of a high-sealing door, which comprises a hinge and a central sleeve. A fixed rod, a central seat, two springs and a one-way valve are arranged between the threaded sleeve and the plug inside the central sleeve; the screw of the fixed rod is in threaded connection with the threaded sleeve, the fixed rod is provided with an exhaust piston, and the exhaust piston is in sealing sliding connection with the central sleeve; the first spring is propped between the fixed rod and the central seat, the positioning spring is propped between the central seat and the one-way valve, and the one-way valve is hermetically arranged in the central sleeve; the exhaust piston is matched with the one-way valve and the first exhaust hole to form an air pressure chamber. The exhaust piston moves toward the air pressure chamber and the check valve to force the air in the center sleeve to be exhausted through the first exhaust hole, the second exhaust hole and the third exhaust hole. The hinge can self-align in the location angular position of predetermined setting, and the hinge can realize self-closing below the location angular position starting point that the hinge withdraws from predetermined setting.

Description

High sealed door pneumatic self-positioning and self-closing hinge

Technical Field

The invention relates to a pneumatic self-positioning and self-closing hinge of a high-sealing door.

Background

The Chinese patent database announces the invention with the name of a lifting hinge device and the patent number of 2013208356551. The hinge comprises an upper hinge, a lower hinge, a transmission seat and a transmission rod. The upper hinge comprises an upper shaft sleeve and an upper hinge blade fixedly connected with the upper shaft sleeve; the lower hinge comprises a lower shaft sleeve and a lower closing blade fixedly connected with the lower shaft sleeve; the transmission base is fixedly connected with the upper shaft sleeve, the bottom end surface of the transmission base is concavely provided with a transmission cavity, and the inner rotating surface of the transmission cavity is provided with a first spiral part. The transmission rod is fixedly connected with the lower shaft sleeve, a second spiral part is arranged on the outer revolution surface of the transmission rod, the transmission rod is connected with the transmission cavity, and the first spiral part is engaged with the second spiral part in a matching way, wherein: the upper hinge is pushed to rotate relative to the lower hinge, and the upper hinge can ascend through the matching of the first spiral part and the second spiral part; the upper hinge descends under the action of gravity by releasing and pushing, and the upper hinge can automatically reset and return to be closed through the matching of the first spiral part and the second spiral part. The lifting hinge device directly realizes switching by matching an upper shaft sleeve and a lower shaft sleeve, but can not be divided into self-closing and self-positioning.

Disclosure of Invention

The invention provides a pneumatic self-positioning and self-closing hinge of a high-sealing door, which overcomes the defects of a lifting hinge device in the background technology.

One of the technical schemes adopted by the invention for solving the technical problems is as follows:

the air pressure type self-positioning and self-closing hinge for high-sealing door includes hinge, fixing seat, fixing rod, screw sleeve and screw ring, the hinge is equipped with shaft sleeve and blade fixedly connected outside the shaft sleeve, the fixing seat is equipped with another shaft sleeve, the hinge can be rotated relatively to the fixing seat and convex seat, and the fixing rod is equipped with screw rod; the method is characterized in that: the plug and the central sleeve are also included; the central sleeve is sleeved in the shaft sleeve of the hinge and the shaft sleeve of the fixed seat, the central sleeve and the shaft sleeve are respectively provided with a first row of air inlet holes which penetrate through the inside and the outside along the axial direction of the inner ring and the outside and the distance size of the axle distance, and the central sleeve is aligned with the first row of air inlet holes of the shaft sleeve; the screw sleeve can be rotatably arranged in the central sleeve and is fixedly connected with a shaft sleeve, the plug is arranged in the central sleeve and is fixedly connected in the shaft sleeve of the convex seat, the screw sleeve and the plug are separated, a fixing rod, a first spring, a central seat, a positioning spring, a cup body and a one-way valve matched with a third exhaust hole are arranged between the screw sleeve and the plug in the central sleeve, and the central seat is provided with an exhaust bolt with a second exhaust hole; the screw of the fixed rod is in threaded connection with the threaded sleeve, the fixed rod is fixedly provided with an exhaust piston, and the exhaust piston is hermetically and slidably connected in the central sleeve; the first spring is propped between the fixed rod and the central seat, the positioning spring is propped between the central seat and the one-way valve, and the one-way valve is hermetically arranged in the cup body in the central sleeve, so that the exhaust piston can be correspondingly matched with the one-way valve and correspondingly matched with the first exhaust inlet hole and correspondingly matched with the positioning spring, and the central sleeve of the hinge can form an air pressure chamber; wherein: the exhaust piston moves towards the direction of the air pressure chamber and the one-way valve to promote the air in the central sleeve to be exhausted outwards through the first exhaust hole, the second exhaust hole of the exhaust bolt and the third exhaust hole of the one-way valve, and after the exhaust piston slides through the first exhaust hole, the air in the air pressure chamber can be exhausted outwards through the second exhaust hole of the exhaust bolt and the third exhaust hole of the one-way valve.

The second technical scheme adopted by the invention for solving the technical problems is as follows:

the high sealed door pneumatic self-positioning and self-closing hinge includes hinge, fixing seat, fixing rod, screw sleeve and screw ring, and the hinge has shaft sleeve inside the fixing seat; the method is characterized in that: the central sleeve is provided with a first row of air inlet holes which penetrate through the inner ring and the outer ring along the axial direction of the inner ring and the outer ring and the distance size of the wheel base; the cup body and the shaft sleeve are respectively provided with an air exhaust hole which penetrates through the inner and the outer parts along the axial direction of the inner ring and the outer ring and the distance size position of the axle distance, and the air exhaust holes of the cup body and the shaft sleeve are aligned and communicated; the threaded sleeve is fixedly connected in one end of the central sleeve, the plug is fixedly connected in the other end of the central sleeve, and the threaded sleeve and the plug are spaced; a fixed rod, a first spring, a central seat, a cup body, a positioning spring and a positioning piston are arranged between the threaded sleeve and the plug in the central sleeve, and the central seat is provided with an exhaust bolt with a second exhaust hole; the screw of the fixed rod is in threaded connection with the threaded sleeve, the fixed rod is provided with an exhaust piston, and the exhaust piston is in sealing sliding connection with the central sleeve; the first spring is propped between the fixed rod and the central seat, the positioning spring is propped between the central seat and the positioning piston, and the positioning piston is hermetically arranged in the central sleeve, so that the exhaust piston can be correspondingly matched with the positioning piston and correspondingly matched with the first row of air inlet holes and correspondingly matched with the positioning spring, and an air pressure chamber can be formed in the central sleeve of the hinge; wherein: the air in the air pressure chamber can be discharged outwards through the second air exhaust hole of the air exhaust bolt, the air exhaust hole of the cup body and the air exhaust hole in the central sleeve after the air exhaust piston slides through the first air exhaust hole.

Compared with the background technology, the technical scheme has the following advantages:

the blades of the hinge can rotate relative to the axis of the shaft sleeve after being opened, so that the blades of the hinge can drive the screw sleeve in the shaft sleeve to rotate, the convex spiral teeth with six straight pitch pitches between more than two of the screw rods of the fixed rod can be matched with the concave spiral teeth with six straight pitch pitches between more than two of the screw sleeve in a screw joint mode, the convex spiral teeth with six straight pitch pitches of the screw rods can slide and move downwards along the axial direction relative to the concave spiral teeth with six straight pitch pitches of the screw sleeve, the exhaust piston of the fixed rod in the central sleeve can slide and move downwards along the axial direction relative to the screw sleeve and moves towards the air pressure chamber and the check valve, gas in the central sleeve is enabled to be exhausted outwards through the second exhaust holes of the first exhaust hole and the exhaust bolt and the third exhaust hole of the check valve, and meanwhile, the exhaust piston of the fixed rod of the hinge continues to slide and move downwards relative to the axis of the screw sleeve, after the exhaust piston slides through the first exhaust and intake hole, the gas in the air pressure chamber can be discharged outwards through the second exhaust hole of the exhaust bolt and the third exhaust hole of the check valve, so that the exhaust piston in the central sleeve can be correspondingly matched with the check valve, the corresponding matching positioning spring, the corresponding matching air leakage plug and the corresponding matching first exhaust and intake hole, so that the air pressure chamber can be formed in the central sleeve of the hinge, in the process, the elastic force of the first spring, the self gravity and the air pressure suction force in the air pressure chamber, which are borne by the fixed rod, are balanced, so that the exhaust piston in the air pressure chamber of the central sleeve can be correspondingly matched with the check valve and the positioning spring, the exhaust piston in the air pressure chamber can generate self-positioning force balance of the atmospheric pressure and the suction force, and the hinge can realize self-positioning in the process.

Drawings

The invention is further illustrated by the following figures and examples.

Fig. 1 is a schematic structural diagram of a hinge according to a first embodiment.

Fig. 2 is a schematic structural view of the hinge according to the first embodiment.

Fig. 3 is a schematic structural view of a hinge according to a second embodiment.

Fig. 4 is a schematic structural diagram of a fixing base according to a first embodiment.

Fig. 5 is a schematic view illustrating an assembly structure of the center cover according to the first embodiment.

Fig. 6 is a perspective view of the center sleeve according to the first embodiment.

Fig. 7 is a schematic structural diagram of the center sleeve according to the first embodiment.

Fig. 8 is a schematic perspective view illustrating a first bearing according to a first embodiment.

Fig. 9 is a schematic perspective view of the screw sleeve according to the first embodiment.

Fig. 10 is a schematic structural diagram of the screw sleeve according to the first embodiment.

Fig. 11 is a perspective view of the inner ring flange of the toroid according to the first embodiment.

Fig. 12 is a schematic structural diagram of a spiro ring according to a first embodiment.

Fig. 13 is a schematic perspective view illustrating a sliding sleeve according to a first embodiment.

Fig. 14 is a schematic perspective view illustrating a fixing rod according to a first embodiment.

Fig. 15 is a schematic structural view of a fixing rod according to a first embodiment.

FIG. 16 is a perspective view of the vent plug according to the first embodiment.

FIG. 17 is a schematic structural diagram of a venting plug according to an embodiment.

Fig. 18 is a schematic structural diagram of a positioning piston according to the first embodiment.

Fig. 19 is a schematic perspective view of a positioning piston according to the first embodiment.

Fig. 20 is a schematic perspective view illustrating the air leakage blockage according to the first embodiment.

Fig. 21 is a schematic structural view of the cup body according to the first embodiment.

Fig. 22 is a perspective view of the cup according to the first embodiment.

Fig. 23 is a schematic perspective view illustrating a plug according to a first embodiment.

Fig. 24 is a schematic structural diagram illustrating a plug according to an embodiment.

Fig. 25 is a schematic structural diagram of an adjustment seat according to a first embodiment.

Fig. 26 is a schematic perspective view illustrating an adjustment seat according to a first embodiment.

Fig. 27 is a schematic structural diagram of a hinge according to a second embodiment.

Fig. 28 is a schematic structural view of a blade according to a second embodiment.

Fig. 29 is a schematic structural diagram of a fixing base according to a second embodiment.

Fig. 30 is a schematic perspective view illustrating a sealing rubber ring according to a second embodiment.

Fig. 31 is a schematic structural diagram of a hinge according to a third embodiment.

Fig. 32 is a schematic structural view of the inner ring flange of the toroid according to the third embodiment.

FIG. 33 is a schematic structural diagram of a venting plug according to a third embodiment.

Fig. 34 is a schematic structural view of the exhaust piston according to the third embodiment.

Fig. 35 is a schematic structural view of the cup body according to the third embodiment.

Fig. 36 is a schematic structural diagram of the center sleeve according to the third embodiment.

Fig. 37 is a schematic perspective view of the seal rubber ring according to the third embodiment.

Detailed Description

Example one

The hinge of the hinge can self-position and self-close at any positioning angle position between preset positioning angles, for example, the hinge can self-position at any positioning angle position between 50 degrees and 180 degrees from the positioning angle position of the preset positioning angle of the blade of the hinge. The pneumatic self-positioning and self-closing hinge structure of the high-sealing door can be suitable for being arranged in shaft sleeves of hinges of any high-sealing flat door and any high-sealing convex door hinge, and can be suitable for being arranged in shaft sleeves of hinges of any high-sealing flat door and any high-sealing convex door hinge, such as a freezer, a refrigerator, a freezer, an oven experimental facility door, an environmental simulation experimental facility door, a mechanical facility door, a drying facility door, a sound insulation door, a special door, a fresh-keeping warehouse door, a tea warehouse door, a civil engineering warehouse door, any ship and the like. The high-sealing flat door and convex door pneumatic self-positioning and self-closing hinges can be suitable for being mounted on any high-sealing flat door hinge and any high-sealing convex door hinge of a freezer, a refrigerator, a cold storage, an oven experimental facility door, an experimental facility door for simulating environment, a mechanical facility door, a drying facility door, a soundproof door, a special door, a fresh-keeping storehouse door, a tea storehouse door, a civil engineering storehouse door, any ship and the like.

Referring to fig. 1 to 26, the hinge includes a hinge 10, a fixing base 20, a fixing rod 30, a threaded sleeve 40, a threaded ring 43, a central sleeve 50, a plug 60, and an adjusting base 70. The central sleeve 50 and the shaft sleeve 11 are respectively provided with a first row of air inlet holes 55 which penetrate through the inner and outer sides along the axial direction of the inner ring and the outer ring and the distance size of the wheel base, and the first row of air inlet holes 55 of the central sleeve 50 and the first row of air inlet holes 55 of the shaft sleeve 11 are aligned.

The hinge 10 comprises a shaft sleeve 11 and a blade 12 fixed outside the shaft sleeve 11, the fixing base 20 comprises a fixing plate 25 and a vertical bottom plate 22 and a convex base 23 fixed on the vertical bottom plate 22, and the end surface of the vertical bottom plate 22 of the convex base 23 is concavely provided with the shaft sleeve 21. The central sleeve 50 is connected in the inner ring of the shaft sleeve 11 and the inner ring of the shaft sleeve 21 of the convex base 23, and the shaft sleeve 11 and the shaft sleeve 21 are arranged side by side, so that the hinge can rotate relative to the shaft sleeve 21 of the fixed base and the convex base 23, and the hinge can form any high-sealing door pneumatic self-positioning and self-closing flat door structure hinge and any high-sealing door pneumatic self-positioning and self-closing convex door structure hinge.

The screw sleeve 40 is connected in the central sleeve 50 in a rotatable and non-slidable and non-movable manner, and the shaft sleeve 11 of the hinge 10 is fixedly connected with the part of the screw sleeve 40 extending out of the central sleeve 50, for example: the rotary ring 41 is arranged in addition, the upper part of the screw sleeve 40 is convexly provided with a thin rod 42, the thin rod 42 can pass through the rotary ring 41 in a rotating mode, the rotary ring 41 is arranged on the upper part of the shaft sleeve 11 in a matching mode, a fixing screw 98 is arranged in a screw through hole of the shaft sleeve 11 in a matching mode, the fixing screw is locked in the rotary ring 41, the fixing rotary ring 41 is fixedly connected with the shaft sleeve 11 together, the thin rod 42 fixedly connected with the shaft sleeve 11 and the screw sleeve 40 can be opposite, the rotary ring 41 and the shaft sleeve 11 of the hinge can limit the axial movement of the screw sleeve 40, the distance size of the axial direction and the axial distance of the downward sliding and upward movement of the fixing rod relative to the screw sleeve along the axial line can not change, and the blade 12 correspondingly matched with the hinge 10 can be self-positioned at a required positioning angle between preset positioning angles. The plug 60 is connected in the central sleeve 50, the sleeve 21 of the fixing base is fixedly connected with the part of the plug 60 extending out of the central sleeve 50, and a fixing screw is arranged to penetrate through a screw through hole of the sleeve 21 and is locked and fixedly connected in the plug.

The screw sleeve 40 is spaced from the plug 60, and a fixing rod 30, a spiral ring 43, a first spring 81, a central seat 82, a positioning spring 83 and a one-way valve 90 are arranged between the screw sleeve 40 and the plug 60 in the central sleeve 50. Also disposed within the hub 50 is a cup 56, the cup 56 being disposed within the hub 50 along the axis of the hub 50, the cup having an open bottom. The central seat 82 is a vent plug 82. Preferably, the method comprises the following steps: the first flange 51 is arranged in the center sleeve 50, the first flange 51 can abut against the annular groove 403 of the spiral ring 43 in the center sleeve 50, the first flange 51 is embedded in the annular groove 403 of the spiral ring 43 in the center sleeve 50, so that the spiral ring 43 and the first flange 51 are fixedly connected with the first flange 51 in the center sleeve 50 together in a non-sliding and non-moving manner, the spiral ring 43 is positioned below the spiral sleeve, the screw 31 penetrates through the spiral ring 43 and then is screwed with the spiral sleeve 40, the spiral ring 43 is concavely provided with a through hole, the front edge of the inner ring of the spiral ring 43 is convexly provided with an inner ring flange 433 of the spiral ring, the outer ring circumferential side surface of the convex ring 32 of the fixed rod 30 is concavely provided with a convex ring sliding track groove 332, so that the inner ring flange 433 of the spiral ring can abut against the convex ring sliding track groove 332, so that the inner ring flange 433 of the spiral ring can be matched with the convex ring sliding track groove 332, and the distance between the axial direction and the axial direction of the fixed rod which can slide and move downwards and upwards along the axial line relative to the spiral sleeve, the relative position angle can be set correspondingly to the preset position angle of the leaf of the matched hinge. The check valve 90 can be a positioning piston 91. In the condition that the first spring 81 is not arranged in the center sleeve of the hinge, the hinge can still be preset to be arranged with a positioning angle for self-positioning. The central sleeve can be a connecting sleeve 50. The teeth of the screw 31 of the fixed rod 30 are matched with the teeth of the screw sleeve 40, so that the screw 31 of the fixed rod 30 can slide and move along the axis downwards and upwards relative to the screw sleeve 40.

The screw 31 of the fixing rod 30 is screwed with the threaded sleeve 40 and the exhaust piston 33 of the fixing rod 30 is hermetically and slidably connected in the central sleeve 50. The center seat 82 is fixedly connected to the opening of the cup 51 and seals the gap between the cup opening and the center sleeve. The one-way valve 90 is disposed within the cup 56. The first row of air inlet holes 55 are arranged in the moving track of the exhaust piston along the central sleeve 50, the first row of air inlet holes 55 are arranged in the axial and circumferential spacing dimension of the central sleeve and the shaft sleeve 11, the vanes corresponding to the matched hinges can be self-positioned at the starting point of 90-degree positioning angle between preset positioning angles, and the vanes of the hinges can be self-closed at the boundary point below the starting point of the preset 90-degree positioning angle, namely, the vanes of the hinges rotate to the starting point of the 90-degree positioning angle between preset angles, and the vanes of the hinges can be self-positioned at the starting point of the 90-degree positioning angle, and when the vanes of the hinges are below the starting point of the 90-degree positioning angle, the first row of air inlet holes are opposite, so that the exhaust piston 33 can correspond to the check valve 90, the positioning spring 83 and the air leakage plug 92, and the air pressure chamber 99 can be formed in the central sleeve of the hinges, and, the hinge has the advantages that the hinge blade can be self-positioned in a preset angle, the hinge blade can be freely self-positioned in any one of a preset positioning angle from 80 degrees to 180 degrees, and the hinge blade can be self-closed below the starting point of the position of the preset angle from 80 degrees.

A first row of air inlet holes which penetrate through the inside and outside are arranged at the position of the first row of air inlet holes 55 along the axial direction and the distance between the axes of the central sleeve 50 and the shaft sleeve 11, so that an exhaust piston can be correspondingly matched with a check valve and an air leakage blocking and positioning spring and the first row of air inlet holes, so that an air pressure chamber can be formed in the central sleeve of the hinge, a screw through hole which penetrates through the shaft sleeve 11 is screwed through the fixing screw 98, a rotating ring 41 is screwed and penetrates through the rotating ring 41 and then is locked and connected with a fixing thin rod 42, the shaft sleeve, the rotating ring and the thin rod are oppositely and fixedly connected together, so that the rotating ring 41 can be correspondingly matched with the hinge 10 and the rotation of the shaft sleeve 11, so that the axial movement of the screw sleeve 40 can be limited, the position of the fixing rod can be correspondingly positioned and limited at the position of the distance between the axial direction and the distance of the downward sliding and the upward sliding along the axes of the relative screw sleeve, and the, and the first flange 51 is convexly arranged in the central sleeve 50, the first flange 51 can be matched with the spiral ring 43, so that the spiral ring 43 and the first flange 51 are fixedly connected together in the central sleeve 50 in a non-sliding and non-moving manner, the spiral ring 43 is positioned below the screw sleeve, the screw 31 penetrates through the spiral ring 43 and then is screwed with the screw sleeve 40, so that the spiral ring 43 can limit and control the downward and upward sliding and moving of the screw 31 relative to the axis of the screw sleeve 40, the generated spacing size coefficient can position and limit the spacing size position of the axial direction and the axial distance of the sliding and moving of the fixed rod relative to the screw sleeve along the axis, so that the fixed rod 30 in the central sleeve 50 can slide and move downward and upward relative to the axis of the screw sleeve 40, so that the exhaust piston 33 of the fixed rod 30 can generate downward and downward movement of the fixed axial and circumferential spacing size distance towards the air exhaust hole 99 and the one-way valve 90, and simultaneously, the air in the air exhaust hole 99 can pass through the first exhaust hole 55, the second exhaust 822 of the bolt 82 and the air vent 822 and the air vent hole 82, and the air vent hole After the air exhaust piston 33 slides downwards to pass through the first air exhaust hole 55, the air in the air pressure chamber 99 is exhausted outwards through the second air exhaust hole 822 of the air exhaust bolt 82 and the third air exhaust hole 911 of the check valve 90, so that the air exhaust piston 33 in the center sleeve can correspondingly match the check valve 90, the air leakage plug 92, the positioning spring 83 and the first air exhaust hole 55, the air pressure chamber 99 can be formed in the center sleeve 50 of the hinge, the air pressure and the suction force of the air exhaust piston in the air pressure chamber 99 can be balanced, and the air pressure and the suction force are at a preset positioning angle position which can be freely corresponding to the blade 12 matched with the hinge.

The first spring 81 in the center sleeve 50 is pressed between the fixed rod 30 and the center seat 82, the positioning spring 83 is pressed between the center seat 82 and the one-way valve 90, the one-way valve 90 is hermetically arranged in the cup body 56 and is pressed against the cup body 56, and the exhaust piston 33 is correspondingly matched with the one-way valve 90, the positioning spring 83 and the first exhaust hole 55, so that the air pressure chamber 99 can be formed in the center sleeve 50. Wherein the check valve 90 is a positioning piston 91. Wherein: the blade 12 of the hinge 10 is opened and closed automatically, so that the screw 31 of the fixing rod 30 can slide and move from bottom to top relative to the axis of the screw sleeve 40, so that the exhaust piston 33 does not slide out from bottom to top in the air pressure chamber 99 and exits from the first exhaust inlet 55, so that the exhaust piston 33 in the air pressure chamber 99 of the center sleeve 50 can be correspondingly matched with the check valve 90, the positioning spring 83 and the first exhaust inlet 55, in the process, the energy storage elastic force, the self gravity, the air pressure and the suction force of the first spring 81 borne by the exhaust piston 33 in the air pressure chamber 99 are balanced with the self positioning force in the air pressure chamber 99, and the positioning piston 91 can be matched with the positioning spring 83 in the air pressure chamber 99 and be drawn by the suction force with the strong force of the exhaust piston 33 from bottom to top, and meanwhile, the positioning spring 83 is compressed by the strong force of the positioning piston 91, so that the compression energy-storage elastic force of the positioning spring 83 is changed, and the compression energy-storage elastic force of the positioning spring 83 is released, so that one end of the positioning spring 83 can prop against the center seat 82 with strong force, and the other end can prop against the positioning piston 91 with strong force, and at the same time, the positioning spring 83 can cooperate with the positioning piston 91 and simultaneously resist against the suction force and the drawing force of the exhaust piston 33 with strong force in the air pressure chamber 99, so that the exhaust piston 33 can generate strong atmospheric pressure in the air pressure chamber 99, so that the exhaust piston 33 can generate strong self-positioning force in the air pressure chamber 99, and relatively, the vane 12 of the hinge 10 can generate strong self-positioning force, and at the same time, the positioning piston 91 is drawn by the suction force of the exhaust piston 33 with strong force from bottom to top at the step 561 in the inner ring cup wall of the cup body 56 in the air pressure chamber, the supporting center seat 82 with one end capable of being forced correspondingly to the positioning spring 83 and the supporting positioning piston 91 with the other end capable of being forced correspondingly, so that the positioning piston 91 can be matched with the positioning spring 83 to be resisted by the suction force and the drawing force of the exhaust piston 33 with strong force from bottom to top in the air pressure chamber 99, so as to generate atmospheric pressure with strong force in the air pressure chamber 99, so that the exhaust piston 33 can generate self-positioning force with strong force in the air pressure chamber 99, so that the blade 12 of the hinge 10 can generate self-positioning force with strong force relatively, meanwhile, the positioning piston 91 can be matched with the positioning spring 83 to be drawn by the suction force of the exhaust piston 33 with strong force from bottom to top in the air pressure chamber 99 at the cup wall step 561 of the cup in the cup body 56, so that the blade 12 of the hinge 10 stops at a required preset angle position, and simultaneously, the compression energy storage elastic force of the positioning spring 83 is released, so that one end of the positioning spring 83 can strongly support the center seat 82, the other end can strongly support the positioning piston 91 to make the positioning piston 91 return to the step 561 in the inner annular cup wall of the cup 56 supported by the positioning piston 91, and at the same time, the compression energy storage elasticity of the third spring 93 is released, so that one end of the third spring 93 can strongly support the cup bottom of the cup 56, and the other end can strongly support the gasket 921 of the air leakage plug 92, so that the gasket 921 of the air leakage plug 92 returns to a plane circumferential flat wall of the positioning piston 91, so as to isolate and prevent outside air from entering the air pressure chamber 99 of the center sleeve 50 from the third air outlet 911, so that the air exhaust piston 33 can strongly self-position in the air pressure chamber 99, and so long as the air exhaust piston 33 does not slide out of the first air outlet 55, so that the air exhaust piston 33 can flexibly correspondingly cooperate with the blade 12 of the hinge 10 in the air pressure chamber 99 to position between the preset positioning angles Self-positioning. The hinge 10 is closed by external force, so that the screw rod and the threaded sleeve in the central sleeve 50 in the shaft sleeve are in threaded fit to relatively rotate along the axis, the exhaust piston 33 does not pass through the first exhaust air inlet hole 55 from bottom to top, the exhaust piston 33 generates suction force and atmospheric pressure from bottom to top as long as the exhaust piston 33 generates suction force and atmospheric pressure from bottom to top, the positioning piston 91 generates atmospheric pressure by the suction force of the exhaust piston 33 in the air pressure chamber 99, the exhaust piston 33 can generate strong self-positioning force in the air pressure chamber of the central sleeve 50, the hinge 10 is relatively enabled to generate strong self-positioning force, the exhaust piston is drawn from bottom to top and slides from bottom to top, and the exhaust piston 33 can relatively and flexibly match with the movable blade 12 of the hinge 10 in the air pressure chamber 99 to self-position at a required positioning angle between preset positioning angles, meanwhile, the compression energy storage elastic force of the positioning spring 83 is released, the energy storage elastic force at one end can be strongly supported against the central seat 82, the energy storage elastic force at the other end can be strongly supported against the positioning piston 91 to reset to a step 561 in the inner annular cup wall of the cup body against which the positioning piston 91 is supported, and meanwhile, when the positioning piston 91 is drawn upwards by the exhaust piston from bottom to top, the compression energy storage elastic force of the third spring 93 is changed, so that the compression energy storage elastic force of the third spring 93 is released, so that one end of the third spring can be supported against the cup bottom of the cup body, the other end can be supported against the gasket 921 and the blocking column 922 of the air leakage plug 92 so that the gasket 921 of the air leakage plug 92 is reset to a plane circumferential flat wall of the positioning piston 91 (one-way valve) 90, so as to isolate and prevent outside air from entering the air pressure chamber 99 from the third exhaust hole 911, so that the exhaust piston 33 can be positioned in the air pressure chamber 99, the blade capable of realizing the hinge self-positioning relatively is in a preset positioning angle. The stronger the energy storage elasticity and the pre-tightening force of the positioning spring 83 are, the stronger the energy storage elasticity of the positioning piston 91 against which one end of the positioning spring is pressed is released, and the stronger the energy storage elasticity of the other end of the positioning spring is released to prop up the center seat, so that the exhaust piston 33 does not slide (exit) from the first row of air inlet holes 55 from bottom to top, and at the same time, the positioning spring is also in counter balance with the suction force and the drawing force of the exhaust piston which can generate strong force in the air pressure chamber, so as to exhaust the air pressure which can generate strong force in the air pressure chamber, so that the exhaust piston can generate strong self-positioning force in the air pressure chamber of the center sleeve, and the stronger the self-positioning force of the blade 12 of the hinge 10 at a certain positioning angle in a predetermined positioning angle is relatively determined, after the exhaust piston 91 slides out (retreats from) the position of the first exhaust inlet 55 from bottom to top, the gas outside the central sleeve 50 and outside the shaft sleeve enters the air pressure chamber from the first exhaust inlet 55, the air pressure and the suction force in the air pressure chamber 99 are relatively lost, so that the blade of the hinge loses the self-positioning function, and meanwhile, the energy storage elasticity of the first spring 81 is released, so that the fixing rod 30 can be strongly supported against the fixing rod 30, so that the fixing rod 30 can slide upwards relative to the axis of the screw sleeve 40, and the hinge can realize self-closing. The central sleeve 50 is a connecting sleeve 50. The slideway collar 32 is a collar 32.

In one embodiment: the check valve 90 comprises a positioning piston 91 which can be connected in a sliding way and can seal the cup wall of the cup body 56 of the air pressure chamber, an air leakage plug 92 and a third spring 93, wherein the center of the positioning piston 91 is provided with a third air exhaust hole 911, the air leakage plug 92 comprises a gasket 921 and a plug column 922 convexly arranged at the center of the gasket, the plug column 922 is adapted to extend into the third air exhaust hole 911, one end of the third spring 93 can prop against the gasket 921 of the air leakage plug 92, and the other end is opposite to prop against the bottom of the cup body 56; the inner annular wall of the cup body 56 is provided with a step 561, and the positioning piston 91 is supported on the step 561 of the inner annular wall of the cup body 56 for limiting the positioning piston 91 to move close along the bottom direction of the cup body 56. The check valve 90 is a positioning piston 91. The positioning piston 91 is provided with a third vent hole 911, a plane circumferential flat wall of the positioning piston 91 is concavely provided with a taper hole through hole from large to small, so as to form a third vent hole 911, the taper hole through hole from large to small is a third vent hole 911, the small taper hole through hole of the other plane circumferential flat wall of the positioning piston 91 is blocked by a blocking column 922 of the air leakage blocking 92, the third spring 93 can be abutted between a gasket 921 of the air leakage blocking 92 and the cup bottom of the cup body 56, so as to relatively isolate the external air from permeating into the air pressure chamber 99 from the small taper hole through hole of the plane circumferential flat wall of the positioning piston 91, the positioning piston 91 is preferably concavely provided with an annular mounting groove 913 in the circumferential surface of the outer ring of the positioning piston for better sealing performance, an anti-leakage sealing rubber ring 912 is arranged in the mounting groove, the anti-leakage sealing rubber ring 912 also extends out of the mounting groove 913, so that the sealing rubber ring 912 is in sliding sealing contact with the cup wall of the cup body 56, to isolate and prevent outside air from seeping from the inner and outer walls of the cup 56 into the plenum chamber of the center sleeve. When the exhaust piston 33 slides downwards and slides downwards to pass through the position of the first exhaust hole 55, the gas in the air pressure chamber presses the tapered hole through hole of the inner hole peripheral wall of the third exhaust hole 911, so that the gasket 921 of the air leakage plug 92 can be separated from a plane peripheral flat wall of the positioning piston 91 instantly, a gap is generated between the inner ring peripheral wall of the third exhaust hole 911 of the positioning piston 91 and the plug 922 of the air leakage plug 92, so that the gas in the air pressure chamber 99 can be exhausted through the gap of the plug 922 of the air leakage plug 92 of the inner ring peripheral wall of the third exhaust hole 911 of the positioning piston 91, the gas to be exhausted through the third exhaust hole 911 of the positioning piston 91 in the air pressure chamber 99 presses the gasket 921 and the plug 922 of the air leakage plug 92, so that the gasket 921 and the plug 922 of the air leakage plug 92 retreat, so that a gap is generated between the gasket 921 of the air leakage plug 92 and the plane peripheral flat wall of the positioning piston 91, at this time, the gas in the air pressure chamber is discharged through the gap between the gasket 921 of the air leakage plug 92 and a plane circumferential flat wall of the positioning piston 91, after the gas is discharged, the energy storage elasticity of the third spring 93 can generate release and self energy storage elasticity, so that one end of the third spring can support against the cup bottom of the cup body, the other end of the third spring is opposite to the gasket 921 and the plug 922 which can support against the air leakage plug 92, and the gasket 921 of the air leakage plug 92 can reset to a plane circumferential flat wall of the positioning piston 91 (one-way valve) 90, so that the external air can be isolated and prevented from permeating into the air pressure chamber 99 from the third vent hole 911, and the external air can form the air pressure chamber in the center sleeve of the hinge. The check valve 90 is a positioning piston 91.

The end of the screw rod 31 of the fixing rod 30 is provided with a fixedly connected convex ring 32, the convex ring 32 is fixedly connected with an exhaust piston 33, the exhaust piston is fixedly connected with a connecting rod 133, so that the convex ring 32 and the exhaust piston 33 are fixedly connected together to form the convex ring 32, an annular groove 321 is concavely arranged at the circumferential position of the outer ring of the exhaust piston 33, an anti-leakage sealing rubber ring 322 is sleeved on the annular groove 321 of the exhaust piston 33, the anti-leakage sealing rubber ring 322 and the exhaust piston 33 are assembled to form the exhaust piston 33, the anti-leakage sealing rubber ring 322 also extends out of the annular mounting groove 321 to be in sealing abutment with the central sleeve, the anti-leakage sealing rubber ring 322 can be matched with the sliding and moving of the exhaust piston 33 in the air pressure chamber 99 of the central sleeve, and can generate sealing damping force and resistance force in the air pressure chamber 99 of the central sleeve correspondingly, and play a role in enhancing the damping force and resistance force generated by the sliding and the moving of the exhaust piston 33 in the air pressure chamber 99 of the central sleeve The effect is that the strength of the self-positioning force generated by the exhaust piston 33 in the air pressure chamber 99 is relatively enhanced, the suction force and the pulling force of the strong force generated by the positioning spring 83 and the exhaust piston 33 in the air pressure chamber 99 of the center sleeve 50 are relatively correspondingly enhanced, the exhaust piston can generate the atmospheric pressure of the strong force in the air pressure chamber, the self-positioning force of the strong force generated by the exhaust piston in the air pressure chamber of the center sleeve is relatively enhanced, the self-positioning force of the strong force generated by the blade 12 of the hinge 10 is relatively generated, the strength of the self-positioning force generated by the blade 12 of the hinge 10 at a certain positioning angle position between preset positioning angle positions is relatively enhanced, and the release of the energy storage self-jacking force of the first spring 81 can be controlled and limited, the supporting and supporting center seat is relatively used for enabling the energy storage top elasticity degree of one end of the first spring to be strong, the supporting and supporting speed of the exhaust piston of the upward strong supporting and supporting fixed rod of the energy storage top elasticity degree of the other end of the first spring can be slowed down and buffered, the self-closing speed of the blade 12 of the hinge 10 can be controlled and limited relatively, and the use safety performance of the high-sealing door pneumatic self-positioning self-closing hinge can be improved and enhanced relatively.

This adjust seat 70 passes end cap connection cup to can adjust the relative central sleeve's of cup axial position, with the energy storage elasticity and the pretightning force that can adjust first spring and plenum chamber cavity size and volume rate size, relative with can adjusting the strong and weak of the leaf 12 of hinge 10 at the predetermined angle from the positioning dynamics, relative with can correspond the strong and weak of the leaf 12 of cooperation adjustment hinge 10 at the predetermined angle from the positioning dynamics. The adjusting seat 70 is a screw rod, which is screwed through the plug and connected with the bottom of the cup body, and the screw rod is provided with a step surface, which is pressed against the bottom of the cup body, and the screw rod can rotate to pass through the opening of the cup bottom, and is additionally provided with a nut which is screwed and fixedly connected with the tail end of the screw rod and pressed against the top of the cup bottom of the cup body.

In this embodiment: the first flange 51 is arranged in the center sleeve 50, and the first flange 51 can abut against the annular groove 403 of the spiral ring 43 in the center sleeve 50, so that the annular groove 403 of the spiral ring 43 can be embedded in the center sleeve 50, and the spiral ring 43 and the first flange 51 can be fixedly connected together in the center sleeve 50 in a non-rotating and non-sliding manner. The third flange 53 is arranged in the center sleeve 50, and can abut against the annular groove 530 of the first bearing in the center sleeve 50 through the third flange 53, so that the third flange 53 can be embedded with the annular groove 530 of the first bearing in the center sleeve 50, so that the first bearing 44 and the annular groove 530 can be connected and fixed in the center sleeve 50 together in a manner of being incapable of moving up and down relatively (the third flange 53 is arranged in the center sleeve 50, so that the third flange 53 can be embedded with the outer annular groove 530 of the first bearing in the center sleeve 50, so that the first bearing 44 can be axially limited from being displaced). A second bearing 84 is arranged between a connecting rod 133 arranged on the bottom end surface of the fixed rod 30 and the first spring 81. The second flange 52 is arranged in the central sleeve 50, and can abut against the annular groove 520 of the plug 60 in the central sleeve 50 through the second flange 52, so that the annular groove 520 of the plug 60 can be embedded in the central sleeve 50, so that the plug 60 and the second flange 52 can be fixedly connected together in the central sleeve 50 without relative sliding and moving, and the part of the plug 60, which extends out of the central sleeve 50, is fixedly connected in the shaft sleeve 21. The venting bolt 82 comprises a base 821, the base 821 is provided with a second venting hole 822, the lower end of the base 821 is fixedly provided with a horn 823, the base 821 is supported on the outer ring periphery of the cup opening of the cup body, the horn 823 is positioned in the cup body, the second venting hole 822 is communicated with an inner hole through hole of the horn 823, and the second venting hole 822 is arranged at one end of the base and is concavely arranged in the direction facing to the horn body to form a taper shape from large to small; the base 821 is sealed and abutted against the central sleeve, preferably, an annular mounting groove 811 is concavely arranged on the outer circumferential surface of the base 821, an air leakage preventing sealing ring 824 is arranged in the mounting groove 811, the sealing ring 824 also extends out of the mounting groove 811 so as to be sealed and abutted against the central sleeve 50, and therefore external air can be isolated and prevented from permeating into an air pressure chamber of the central sleeve. 322. 824, 912, 562 leak-proof sealing ring material all have elasticity, can also be made of elastic material. The outer ring of the outer surface of the cup 56 is recessed with an annular mounting groove 560, the mounting groove 560 is sleeved with a leak-proof sealing ring 562, and the leak-proof sealing ring 562 extends out of the mounting groove 560 to isolate and prevent outside air from entering the air pressure chamber of the center sleeve. The stronger the strength of the energy storage elastic force release and the spring pretightening force release of the positioning spring in the air pressure chamber, the stronger the abutting elastic force strength of the positioning piston abutted by the opposite end, and the stronger the abutting elastic force strength of the other end of the positioning spring abutted against the center seat, so that the positioning piston in the air pressure chamber is drawn by the exhaust piston from bottom to top and slides from bottom to top, and the stronger the atmospheric pressure strength generated by the suction force of the exhaust piston in the air pressure chamber in the process can be relatively stronger, so that the self-positioning force of the blade of the hinge at the preset angular position can be relatively stronger. The check valve 90 can be a positioning piston 91.

Wherein: the essential conditions for the hinge's central sleeve to form a pneumatic chamber and for the free, predetermined setting of the positioning angle are the following cyclic movement sequence details, when the hinge leaves are opened, and the hinge leaves are screwed into the sleeve 11 through the fastening screw 98 and screwed through the swivel 41 and then locked with the thin fixing rod 42, so that the swivel 41 can cooperate with the hinge 10 and the rotation of the sleeve 11, so as to limit the axial movement of the screw 40, so as to position and limit the fixing rod in the axial direction and the axial distance of the sliding and moving of the relative screw down and up along the axis, and the first spring 81 in the central sleeve is pressed against between the bottom end face of the fixing rod 30 and the central seat 82, and the central seat 82 and the one-way valve 90 are pressed against by the positioning spring 83, and the one-way valve 90 is sealingly arranged in the cup 56 and against the cup 56, and the first flange 51 is arranged by the central sleeve 50, the first flange 51 can abut against the annular groove 403 of the spiral ring 43 in the center sleeve 50, so that the first flange 51 can be embedded with the annular groove 403 of the spiral ring 43 in the center sleeve 50, so that the spiral ring 43 and the first flange 51 can be connected together in a non-sliding and movable manner in the center sleeve 50, a first exhaust hole which penetrates through the center sleeve is arranged at a position along the axis of the center sleeve and the distance between the axial direction and the circumferential direction through the first exhaust hole 55, so that the exhaust piston can be correspondingly matched with the check valve and the air leakage blocking and positioning spring and the first exhaust hole, so that an air pressure chamber can be formed in the center sleeve of the hinge, a leakage-proof sealing ring is sleeved on the outer revolution surface of the cup wall of the cup body, a sealing ring is sleeved outside the fixing rod, the sealing ring forms the exhaust piston, and is fixedly connected at the opening of the cup body 51 through the center seat 82 and seals the gap between the, and through the second flange 52 in the central sleeve 50, so that the second flange 52 can be abutted against the annular groove 520 of the plug 60 in the central sleeve 50, so that the second flange 52 can be embedded with the annular groove 520 of the plug 60 in the central sleeve 50, so that the plug 60 and the second flange 52 can be fixedly connected together in the connecting sleeve in a non-sliding and non-moving manner, the boss 23 has a portion which is connected with the portion of the plug 60 extending out of the central sleeve 50, and one end of the third spring abuts against the gasket and the air leakage plug 92, and the other end of the third spring abuts against the cup bottom of the cup body, so that when the leaves of the hinge are opened, the teeth of the convex screw thread with six straight pitch among more than two screw rods of the fixed rod can slide and move downwards along the axial direction relative to the teeth of the concave screw thread with six straight pitch among more than two screw rods of the screw sleeve 40, so that the exhaust piston with the fixed rod can move downwards along the axial direction relative to the air pressure chamber and the check valve 90, meanwhile, the gas in the central sleeve 50 is discharged outwards through the first gas discharge hole, the second gas discharge hole 822 of the gas discharge bolt 82 and the third gas discharge hole of the one-way valve, meanwhile, the first spring is compressed downwards by the gas discharge piston of the fixed rod 30 to store energy elastic force, the hinge continues to rotate axially relative to the fixed seat and the shaft sleeve of the convex seat, after the gas discharge piston of the fixed rod slides through the first gas discharge hole, the gas in the gas pressure chamber is discharged outwards through the second gas discharge hole 822 of the gas discharge bolt 82 and the third gas discharge hole of the one-way valve, so that the gas pressure chamber can be formed in the central sleeve of the hinge, and the blades of the hinge can freely and automatically position at a preset positioning angle position. Preferably, the method comprises the following steps: the center sleeve 50 is internally provided with a first flange 51, the center sleeve 50 can abut against the outer ring groove 403 of the spiral ring through the first flange 51 in the center sleeve 50, so that the first flange 51 can be embedded with the outer ring groove 403 of the spiral ring in the center sleeve 50, so that the spiral ring 43, the first flange 51 and the center sleeve 50 are fixedly connected together in the center sleeve 50, the spiral ring 43 is fixedly connected in the center sleeve 50 in a non-rotating and non-sliding and non-moving manner, the spiral ring 43 is concavely provided with a through hole, the front edge of the inner ring circumference of the through hole of the spiral ring 43 is convexly provided with an inner ring flange 433 of the spiral ring, the outer ring circumferential side surface of the convex ring 32 of the fixed rod 30 is provided with a convex ring sliding track groove 332, so that the inner ring flange of the spiral ring can abut against the convex ring sliding track groove, and the inner ring flange 433 of the spiral ring can correspondingly match with the convex ring sliding track groove 332 of the convex ring 32 of the fixed rod 30, the fixed rod can be positioned and limited, the distance between the fixed rod and the fixed rod in the axial direction and the axial distance can not change when the fixed rod slides and moves downwards and upwards along the axis relative to the threaded sleeve, the fixed rod can be self-positioned at a position between preset angles relative to the fixed rod and the fixed rod corresponding to the blade 12 matched with the hinge 10, and the fixed rod can be self-positioned at a positioning angle between the preset angles relative to the fixed rod and the fixed rod corresponding to the blade 12 matched with the hinge 10, and the fixed rod are self-positioned at a required positioning angle within the. The third flange 53 is arranged in the center sleeve 50, and can be abutted against the annular groove 530 of the first bearing in the center sleeve 50 through the third flange 53, so that the third flange 53 can be embedded with the annular groove 530 of the first bearing in the center sleeve 50, so that the first bearing 44 and the third flange 53 can be connected and fixedly connected together in the center sleeve 50 without moving up and down (by arranging the third flange 53 in the center sleeve, so that the third flange 53 can be embedded with the annular groove 530 of the first bearing in the center sleeve, so that the first bearing 44 can be connected and fixedly connected, and the first bearing 44 can be relatively limited to move axially), the thin rod 42 of the screw sleeve 40 is sleeved and penetrated through the through hole of the first bearing 44, the connecting rod 133 of the fixed rod 30 and the second bearing 34 are also arranged between the first spring and the center sleeve 50, the second bearing 34 is used for assisting the hinge 10 to rotate the vanes 12 more smoothly between opening and closing, the first spring 91 is sleeved on the connecting rod 133 and is abutted between the second bearing 34 and the gasket 85 on the front end surface of the cup 61. The bottom of the first magnet is convexly provided with a convex ring flange 811, the first magnet is sleeved with a gasket 85, the gasket 85 abuts against the front end face of the cup body 61, and the first spring abuts against between the gasket 85 and the second bearing 34.

Example two

It differs from the first embodiment in that: fig. 27 to 30 show a hinge 10, a fixing base 20, a fixing rod 30, a threaded sleeve 40, a central sleeve 50, a plug 60 and an adjusting base 70. The vertical bottom plate 22 of the fixing plate 25 of the fixing base 20 is convexly provided with the end surface of the convex base 23, the end surface is concavely provided with a shaft sleeve 21, the convex base 23 occupies about half of the fixing plate 25, and the shaft sleeve 11 of the hinge 10 is positioned on the convex base 23. The central sleeve 50 and the shaft sleeve 11 are respectively provided with a first row of air inlet holes 55 which penetrate through the inner part and the outer part along the axial direction and the circumferential direction; the shaft sleeve 11 is provided with a first row of air inlet holes 55 which penetrate through the inside and the outside and is the first row of air inlet holes 55 of the auxiliary center sleeve 50, and the arrangement positions of the first row of air inlet holes 55 along the axial direction and the distance between the shaft direction of the center sleeve 50 and the shaft sleeve 11 are consistent. The hinge 10 comprises a shaft sleeve 11 and a blade 12 fixed outside the shaft sleeve 11, the fixing base 20 comprises a fixing plate 25, a vertical bottom plate 22 and a convex base 23 fixed on the vertical bottom plate 22, and the end surface of the vertical bottom plate 22 of the convex base 23 is concavely provided with a shaft sleeve 21. The end of the screw 31 of the fixed rod 30 is provided with a fixed convex ring 32, the convex ring 32 is fixedly connected with an exhaust piston 33, the exhaust piston is fixedly connected with a connecting rod 133, so that the convex ring 32 and the exhaust piston 33 are fixedly connected together to form the convex ring 32, an annular groove 321 is concavely arranged at the circumferential direction of the outer ring of the exhaust piston 33, the annular groove 321 of the exhaust piston 33 is sleeved with a leakage-proof sealing rubber ring 322, the leakage-proof sealing rubber ring 322 and the exhaust piston 33 are assembled to form the exhaust piston 33, and the leakage-proof sealing rubber ring 322 also extends out of the annular mounting groove 321 to be in sealing and abutting joint in the central sleeve; the central sleeve 50 is connected in the inner ring 11 of the shaft sleeve and the inner ring of the shaft sleeve 21 of the convex base 23, and the shaft sleeve 11 and the shaft sleeve 21 of the convex base 23 are arranged side by side, so that the hinge 10 and the blade 12 can rotate relative to the shaft sleeve 21 of the fixed base 20 and the convex base 23, and the hinge can form any high-sealing door pneumatic self-positioning and self-closing flat door structure hinge and any high-sealing door pneumatic self-positioning and self-closing convex door structure hinge.

EXAMPLE III

It differs from the first embodiment in that: referring to fig. 31 to 37, the shaft sleeve 11 of the hinge 10 is disposed in the fixing base 20, and the thin rod 42 of the screw sleeve 40 can rotate relative to the fixing rod 30 and the fixing base 20; the thin rod 42 forms the vane 12, as the thin rod 42 is fixed to the leaf of the high-sealing door by the fixing screw 98. The shaft sleeve 11 forms a central sleeve 50, the central sleeve 50 is provided with a first row of air inlet holes 55 which penetrate through the inside and the outside, and the cup body 56 and the shaft sleeve 11 are respectively provided with a row of air inlet holes 95 which penetrate through the inside and the outside along the axial direction and the space size position of the axial direction and the circumferential direction; the positioning piston 91 is provided with no third exhaust hole 911 instead, and the air leakage plug 92 is not needed to be arranged relatively; the air discharge hole 95 is located in the path of the positioning piston 91 (check valve) moving up and down along the axial and circumferential directions of the inner annular wall of the cup body 56, and the air discharge hole 95 is located at the same position along the axial and circumferential directions of the center sleeve 50 and the cup body 56. The cup 56 and sleeve 11 may be provided without the vent hole 95. The sliding sleeve 333 is sleeved on the inner ring flange 433 of the spiral ring in a sliding manner, so that the inner ring flange 433 of the spiral ring sleeved with the sliding sleeve 333 in a sliding manner can be abutted into the convex ring sliding track groove 332, and correspondingly, the inner ring flange 433 of the spiral ring sleeved with the sliding sleeve 333 in a sliding manner can be correspondingly matched with the convex ring sliding track groove 332 of the slideway convex ring 32 of the fixed rod 30, so that the auxiliary reinforcing fixed rod can slide and move more smoothly under and above the axis relative to the spiral sleeve, and the blades of the hinge can be opened and closed more smoothly relatively. The central sleeve 50 can constitute a connecting sleeve 50. The slideway collar 32 is a collar 32.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The air pressure type self-positioning and self-closing hinge for high-sealing door includes hinge, fixing seat, fixing rod, screw sleeve and screw ring, the hinge is equipped with shaft sleeve and blade fixedly connected outside the shaft sleeve, the fixing seat is equipped with another shaft sleeve, the hinge can be rotated relatively to the fixing seat and convex seat, and the fixing rod is equipped with screw rod; the method is characterized in that: the plug and the central sleeve are also included; the central sleeve is sleeved in the shaft sleeve of the hinge and the shaft sleeve of the fixed seat, the central sleeve and the shaft sleeve are respectively provided with a first row of air inlet holes which penetrate through the inside and the outside along the axial direction of the inner ring and the outside and the distance size of the axle distance, and the central sleeve is aligned with the first row of air inlet holes of the shaft sleeve; the screw sleeve can be rotatably arranged in the central sleeve and is fixedly connected with a shaft sleeve, the plug is arranged in the central sleeve and is fixedly connected in the shaft sleeve of the convex seat, the screw sleeve and the plug are separated, a fixing rod, a first spring, a central seat, a positioning spring, a cup body and a one-way valve matched with a third exhaust hole are arranged between the screw sleeve and the plug in the central sleeve, and the central seat is provided with an exhaust bolt with a second exhaust hole; the screw of the fixed rod is in threaded connection with the threaded sleeve, the fixed rod is fixedly provided with an exhaust piston, and the exhaust piston is hermetically and slidably connected in the central sleeve; the first spring is propped between the fixed rod and the central seat, the positioning spring is propped between the central seat and the one-way valve, and the one-way valve is hermetically arranged in the cup body in the central sleeve, so that the exhaust piston can be correspondingly matched with the one-way valve and correspondingly matched with the first exhaust inlet hole and correspondingly matched with the positioning spring, and the central sleeve of the hinge can form an air pressure chamber; wherein: the exhaust piston moves towards the direction of the air pressure chamber and the one-way valve to promote the air in the central sleeve to be exhausted outwards through the first exhaust hole, the second exhaust hole of the exhaust bolt and the third exhaust hole of the one-way valve, and after the exhaust piston slides through the first exhaust hole, the air in the air pressure chamber is exhausted outwards through the second exhaust hole of the exhaust bolt and the third exhaust hole of the one-way valve;

the screw rod of the fixed rod penetrates through the spiral ring and then is in threaded connection with the spiral ring, the front edge of the circumferential direction of the inner ring of the through hole of the spiral ring is convexly provided with an inner ring flange of the spiral ring, a convex ring sliding track groove is concavely arranged on the circumferential side face of the outer ring of the convex ring of the fixed rod, so that the inner ring flange of the spiral ring can abut against the convex ring sliding track groove, and the sliding track groove of the convex ring can correspondingly match with the inner ring flange of the spiral ring relatively, so that the distance between the axial direction and the axial distance of the fixed rod, which can slide and move downwards and upwards relative to the spiral ring along the axial direction, can be positioned and limited, and cannot be changed.

2. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 1, wherein: the one-way valve comprises a positioning piston, an air leakage plug and a third spring, wherein the positioning piston can be in sliding connection and seal the air pressure chamber, the third air exhaust hole is formed in the center of the positioning piston, the air leakage plug comprises a gasket and a plug column which is convexly arranged at the center of the gasket, the plug column is matched and extends into the third air exhaust hole, one end of the third spring can be abutted to the gasket which is blocked by air leakage, and the other end of the third spring can be abutted to the bottom of the cup body relatively.

3. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 2, wherein: the central seat is an exhaust bolt.

4. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 2, wherein: the cup body is adjustably arranged in the central sleeve along the central sleeve; the one-way valve is arranged in the cup body, and the central seat is fixedly connected with the cup body.

5. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 3, wherein: still including adjusting the seat, this cup is established in the center sleeve along the center sleeve can be adjusted, should adjust the seat and pass the end cap and connect the cup to can adjust the axial position of cup relative center sleeve, relative with the size of the cavity size and the volume ratio that can adjust the atmospheric pressure indoor, also relative with the blade that can adjust the hinge in the intensity and weak of the predetermined angle from the location dynamics.

6. The pneumatic self-positioning and self-closing hinge of high-sealing door as claimed in claim 4, wherein: the inner ring wall of the cup body is internally provided with a step for limiting the movement of the positioning piston along the direction close to the third spring, and the third spring is propped against between the bottom of the cup body and the gasket.

7. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 1, wherein: the fixed rod is provided with a fixed convex ring at the tail end of a screw rod, the convex ring is fixedly connected with an exhaust piston, the exhaust piston is fixedly connected with a connecting rod, so that the convex ring and the exhaust piston are fixedly connected together to form a convex ring, the outer ring of the exhaust piston is circumferentially provided with an annular groove, the annular groove of the exhaust piston is sleeved with a leakproof gas sealing rubber ring, the leakproof gas sealing rubber ring and the exhaust piston are assembled to form the exhaust piston, the leakproof gas sealing rubber ring also extends out of the annular mounting groove to be in sealed abutting connection in the central sleeve, and the leakproof gas sealing rubber ring can be matched with the sliding and moving of the exhaust piston in the air pressure chamber of the central sleeve to generate sealing damping force and resistance force in the air pressure chamber of the central sleeve and play a role in enhancing the damping force and the resistance force generated by the sliding and the moving of the exhaust piston in the air pressure chamber of the central sleeve, the self-positioning force enhancement of the exhaust piston generated in the air pressure chamber of the central sleeve is relatively realized, the self-positioning force enhancement of the exhaust piston generated in the air pressure chamber of the central sleeve is relatively realized by correspondingly matching and assisting to strengthen the positioning spring, the suction force with strong force and the drawing force with strong force generated in the air pressure chamber of the central sleeve are correspondingly matched, and further the strong atmospheric pressure generated in the air pressure chamber of the exhaust piston is relatively realized, so that the self-positioning force with strong force can be generated in the air pressure chamber of the central sleeve by the exhaust piston, the self-positioning force of the blade of the hinge can be relatively generated, and the self-positioning force enhancement of the blade of the hinge at a positioning angle position between preset positioning angle positions can be relatively realized.

8. The high sealed door pneumatic self-positioning and self-closing hinge includes hinge, fixing seat, fixing rod, screw sleeve and screw ring, and the hinge has shaft sleeve inside the fixing seat; the method is characterized in that: the cup also comprises a plug and a cup body, the shaft sleeve forms a central sleeve, and the central sleeve is provided with a first row of air inlet holes which penetrate through the inner and outer rings along the axial direction of the inner ring and the outer ring and the distance size of the axle base; the cup body and the shaft sleeve are respectively provided with an air exhaust hole which penetrates through the inner and the outer parts along the axial direction of the inner ring and the outer ring and the distance size position of the axle distance, and the air exhaust holes of the cup body and the shaft sleeve are aligned and communicated; the threaded sleeve is fixedly connected in one end of the central sleeve, the plug is fixedly connected in the other end of the central sleeve, and the threaded sleeve and the plug are spaced; a fixed rod, a first spring, a central seat, a cup body, a positioning spring and a positioning piston are arranged between the threaded sleeve and the plug in the central sleeve, and the central seat is provided with an exhaust bolt with a second exhaust hole; the screw of the fixed rod is in threaded connection with the threaded sleeve, the fixed rod is provided with an exhaust piston, and the exhaust piston is in sealing sliding connection with the central sleeve; the first spring is propped between the fixed rod and the central seat, the positioning spring is propped between the central seat and the positioning piston, and the positioning piston is hermetically arranged in the central sleeve, so that the exhaust piston can be correspondingly matched with the positioning piston and correspondingly matched with the first row of air inlet holes and correspondingly matched with the positioning spring, and an air pressure chamber can be formed in the central sleeve of the hinge; wherein: the exhaust piston moves towards the direction of the air pressure chamber and the positioning piston, so that air in the central sleeve is exhausted outwards through the first exhaust hole, the second exhaust hole of the exhaust bolt, the exhaust hole of the cup body and the exhaust hole in the shaft sleeve, and after the exhaust piston slides through the first exhaust hole position, the air in the air pressure chamber is exhausted outwards through the second exhaust hole of the exhaust bolt, the exhaust hole of the cup body and the exhaust hole of the central sleeve;

9. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 8, wherein: still include the check valve, this check valve includes a positioning piston, an air leakage stopper and a third spring that can sliding connection and sealed plenum, and the third exhaust hole is established at this positioning piston center, and this air leakage stopper includes a gasket and a protruding stifled post of establishing at the gasket center, and this stifled post adaptation stretches into in the third exhaust hole, and this third spring one end can push up and support gasket department at air leakage stopper, and the other end can push up the bottom of cup at the cup relatively.

10. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 9, wherein: the central seat is an exhaust bolt.

11. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 9, wherein: the cup body is adjustably arranged in the central sleeve along the central sleeve; the one-way valve is arranged in the cup body, and the central seat is fixedly connected with the cup body.

12. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 10, wherein: still including adjusting the seat, this cup is established in the center sleeve along the center sleeve can be adjusted, should adjust the seat and pass the end cap and connect the cup to can adjust the axial position of cup relative center sleeve, relative with the size of the cavity size and the volume ratio that can adjust the atmospheric pressure indoor, also relative with the blade that can adjust the hinge in the intensity and weak of the predetermined angle from the location dynamics.

13. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 11, wherein: the inner ring wall of the cup body is internally provided with a step for limiting the movement of the positioning piston along the direction close to the third spring, and the third spring is propped against between the bottom of the cup body and the gasket.

14. The pneumatic self-positioning and self-closing hinge for high-sealing door as claimed in claim 8, wherein: the fixed rod is provided with a fixed convex ring at the tail end of a screw rod, the convex ring is fixedly connected with an exhaust piston, the exhaust piston is fixedly connected with a connecting rod, so that the convex ring and the exhaust piston are fixedly connected together to form a convex ring, the outer ring of the exhaust piston is circumferentially provided with an annular groove, the annular groove of the exhaust piston is sleeved with a leakproof gas sealing rubber ring, the leakproof gas sealing rubber ring and the exhaust piston are assembled to form the exhaust piston, the leakproof gas sealing rubber ring also extends out of the annular mounting groove to be in sealed abutting connection in the central sleeve, and the leakproof gas sealing rubber ring can be matched with the sliding and moving of the exhaust piston in the air pressure chamber of the central sleeve to generate sealing damping force and resistance force in the air pressure chamber of the central sleeve and play a role in enhancing the damping force and the resistance force generated by the sliding and the moving of the exhaust piston in the air pressure chamber of the central sleeve, the self-positioning force enhancement of the exhaust piston generated in the air pressure chamber of the central sleeve is relatively realized, the self-positioning force enhancement of the exhaust piston generated in the air pressure chamber of the central sleeve is relatively realized by correspondingly matching and assisting to strengthen the positioning spring, the suction force with strong force and the drawing force with strong force generated in the air pressure chamber of the central sleeve are correspondingly matched, and further the strong atmospheric pressure generated in the air pressure chamber of the exhaust piston is relatively realized, so that the self-positioning force with strong force can be generated in the air pressure chamber of the central sleeve by the exhaust piston, the self-positioning force of the blade of the hinge can be relatively generated, and the self-positioning force enhancement of the blade of the hinge at a positioning angle position between preset positioning angle positions can be relatively realized.