CN211473756U

CN211473756U - Hinge structure

Info

Publication number: CN211473756U
Application number: CN201921565659.6U
Authority: CN
Inventors: 李珮甄
Original assignee: Tongguan (xiamen) Electronic Technology Co ltd
Current assignee: Tongguan (xiamen) Electronic Technology Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-09-11
Anticipated expiration: 2029-09-20
Also published as: TW202113216A; TWI751588B

Abstract

A hinge structure comprises a first blade, a second blade and a hinge, wherein the first blade is provided with a first shaft sleeve, and the second blade is provided with a second shaft sleeve; the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve; the plug is sleeved in the connecting sleeve, and an air pressure chamber is formed in the plug; the adjusting seat is arranged in the communicating hole; the first bearing is sleeved in the connecting sleeve; the transmission rod is rotatably sleeved in the first bearing, the upper part of the transmission rod is fixedly connected with the first shaft sleeve, and the lower part of the transmission rod is provided with a screw part; the upper part of the screw sleeve is provided with a screw thread hole connected with the screw rod part; the damping positioning rod is connected with the lower part of the threaded sleeve, the damping positioning rod is axially sleeved in the air pressure chamber of the connecting sleeve and the plug in a sliding manner, and the damping positioning rod is in sealing fit with the side wall of the connecting sleeve and the air pressure chamber. When the first blade drives the transmission rod to rotate, the transmission rod drives the threaded sleeve and the damping positioning rod to move close to the air pressure chamber of the plug, the damping positioning rod moves close to the air pressure chamber to compress the atmosphere in the air pressure chamber, and the compressed atmosphere generates pressure on the damping positioning rod, so that the first blade has a positioning function.

Description

Hinge structure

Technical Field

The utility model relates to a hinge structure.

Background

The hinge is widely applied to doors and windows, vehicle doors, refrigerator doors, oven experimental equipment doors, experimental box doors, simulated environment experimental equipment doors, mechanical equipment doors, drying equipment doors, sound insulation doors, special doors, fresh-keeping storehouse doors, tea storehouse doors, civil engineering storehouse doors and the like. In the prior art, the hinges have different structures, and all the functions realized by the hinges are basic functions of relative rotation.

The application number 201310693690.9 discloses a lifting hinge device, which comprises an upper hinge, a lower hinge, a transmission rod and a transmission seat, wherein the upper hinge comprises an upper shaft sleeve and an upper hinge sheet fixedly connected with the upper shaft sleeve; the lower hinge comprises a lower shaft sleeve and a lower hinge sheet fixedly connected with the lower shaft sleeve; further comprising: the transmission seat is fixedly connected with the upper shaft sleeve, the bottom end surface of the transmission seat is concavely provided with a transmission cavity, and the inner revolution 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 in 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 is driven to descend under the action of gravity by releasing and pushing, and the upper hinge can automatically reset through the matching of the first spiral part and the second spiral part; the first helical portion and the second helical portion are both at least double helical structures, and the at least double helical structures comprise at least two parallel helical lines.

The lifting hinge device has no positioning function, cannot adjust the positioning strength, and is limited in applicability, and the hinge has the positioning function and the positioning strength can be adjusted in many application scenes.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, an object of the utility model is to provide a hinge structure, this hinge structure has blade locate function, realizes latter half range location, and blade location dynamics size can be adjusted.

A second object of the utility model is to provide a hinge structure, this hinge structure has blade locate function, realizes latter half range location to the blade can cushion and reset, and simultaneously, blade location dynamics size can be adjusted.

A third object of the present invention is to provide a hinge structure, which has a blade positioning function, and realizes the whole positioning, and simultaneously, the size of the positioning force of the blade can be adjusted.

A fourth object of the present invention is to provide a hinge structure, which has a blade positioning function and realizes a full positioning.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a hinge structure, including a first blade, where the first blade is provided with a first shaft sleeve;

the second blade is provided with a second shaft sleeve, and a first through hole is formed in the second shaft sleeve;

the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole communicated with the first through hole is formed in the connecting sleeve;

the plug is sleeved in the connecting sleeve, an air pressure chamber is formed in the plug, a third through hole communicated with the second through hole is formed in the side wall of the air pressure chamber, a communicating hole communicated with the air pressure chamber is further formed in the plug, and an exhaust hole is formed in the plug and communicated with the communicating hole and the atmosphere;

the adjusting seat is arranged in the communicating hole, is in clearance fit with the side wall of the communicating hole, and is communicated with the air pressure chamber and the exhaust hole in a clearance mode;

the first bearing is sleeved in the connecting sleeve;

the transmission rod is rotatably sleeved in the first bearing, the upper part of the transmission rod is fixedly connected with the first shaft sleeve, and the lower part of the transmission rod is provided with a screw rod part;

the upper part of the screw sleeve is provided with a screw thread hole connected with the screw rod part;

the damping positioning rod is connected with the lower part of the threaded sleeve, the damping positioning rod is axially sleeved in the air pressure chamber of the connecting sleeve and the plug in a sliding manner, and the damping positioning rod is in sealing fit with the side walls of the connecting sleeve and the air pressure chamber.

According to the hinge structure provided by the embodiment of the utility model, when the first blade drives the transmission rod to rotate, the transmission rod drives the threaded sleeve and the damping positioning rod to move close to the air pressure chamber of the plug, when the damping positioning rod does not slide through the third through hole, the atmosphere in the air pressure chamber is discharged through the third through hole, the second through hole and the first through hole, and is discharged through the gap between the adjusting seat and the communicating hole, at the moment, the pressure generated by the atmosphere in the air pressure chamber to the damping positioning rod is smaller, and slight positioning force is generated; when the damping positioning rod slides through the third through hole, the damping positioning rod blocks the third through hole, the atmosphere in the air pressure chamber can be discharged only through the gap between the adjusting seat and the through hole, at the moment, the damping positioning rod is close to the air pressure chamber to displace and compress the atmosphere in the air pressure chamber, and the compressed atmosphere generates pressure on the damping positioning rod, so that the first blade has a positioning function, and the rear half-range positioning is realized.

In addition, according to the hinge structure provided by the above embodiment of the present invention, the following additional technical features may also be provided:

further, a necking part is formed at the upper part of the communicating hole of the plug, a necking part is correspondingly formed at the upper part of the adjusting seat, a third sealing ring in sealing fit with the necking part is sleeved on the necking part, and the area of the cross section of the necking part, which is arranged above the third sealing ring, is gradually reduced from bottom to top; the adjusting seat can be axially movably arranged in the plug, and the adjusting seat is moved to adjust the size of a gap between the necking part and the necking part.

According to the utility model discloses hinge structure, adjustment seat can axial displacement install in the end cap, removes the size in clearance between adjustment seat regulation throat portion and the throat portion to adjust the atmospheric displacement of compression in the air pressure chamber, and then adjust first blade location dynamics size.

Further, the part of the necking part above the third sealing ring is a cone frustum.

Furthermore, an internal thread is formed on the inner side wall of the communicating hole of the plug, an external thread is formed on the outer side wall of the adjusting seat, and the adjusting seat is in threaded connection with the communicating hole of the plug.

Furthermore, a connecting screw is formed at the upper part of the damping positioning rod, a connecting screw hole is correspondingly formed in the threaded sleeve, and the connecting screw of the damping positioning rod is in threaded connection with the connecting screw hole of the threaded sleeve.

Further, a first annular mounting groove is formed in the screw sleeve, and a first sealing ring is mounted in the first annular mounting groove; and a second annular mounting groove is formed in the damping positioning rod, and a second sealing ring is mounted in the second annular mounting groove.

Furthermore, a first axial through hole and a second axial through hole which are opposite to each other are formed in the side wall of the air pressure chamber of the plug, a sliding rod is radially arranged on the damping positioning rod, and two ends of the sliding rod are respectively limited in the first axial through hole and the second axial through hole.

Furthermore, an annular clamping groove is formed in the outer side wall of the plug, a first flange is formed on the inner side wall of the connecting sleeve, and the first flange of the connecting sleeve is embedded into the annular clamping groove of the plug.

Furthermore, the upper part of the transmission rod penetrates through an inner ring through hole of the first bearing and is inserted into an insertion hole of the rotating ring, an external tangent flat edge is arranged on the upper part of the transmission rod, an internal tangent flat edge corresponding to the external tangent flat edge is arranged in the insertion hole of the rotating ring, the rotating ring is fixed in the first shaft sleeve, and a fixedly connected screw rod sequentially penetrates through the first shaft sleeve and the rotating ring in a threaded manner and locks the transmission rod.

Further, a first annular groove and a second annular groove are formed on the outer side wall of the first bearing, a second flange and a third flange are correspondingly formed on the inner side wall of the connecting sleeve, the second flange of the connecting sleeve is embedded into the first annular groove of the first bearing, and the third flange of the connecting sleeve is embedded into the second annular groove of the first bearing.

Further, the first shaft sleeve comprises an upper shaft sleeve and a lower shaft sleeve, a second bearing is arranged between the upper shaft sleeve and the upper end of the second shaft sleeve, the second bearing can be rotatably sleeved on the connecting sleeve, a third bearing is arranged between the lower shaft sleeve and the lower end of the second shaft sleeve, and the third bearing can be rotatably sleeved on the plug.

In order to achieve the above object, a second aspect of the present invention provides a hinge structure, including a first blade, the first blade being provided with a first shaft sleeve;

the first bearing is sleeved in the connecting sleeve;

the damping positioning rod is connected with the lower part of the threaded sleeve, the damping positioning rod is axially sleeved in the air pressure chamber of the connecting sleeve and the plug in a sliding manner, and the damping positioning rod is in sealing fit with the side walls of the connecting sleeve and the air pressure chamber;

the spring is sleeved on the damping positioning rod, one end of the spring abuts against the screw sleeve, and the other end of the spring abuts against the plug.

According to the hinge structure provided by the embodiment of the utility model, when the first blade drives the transmission rod to rotate, the transmission rod drives the threaded sleeve and the damping positioning rod to move close to the air pressure chamber of the plug, when the damping positioning rod does not slide through the third through hole, the atmosphere in the air pressure chamber is discharged through the third through hole, the second through hole and the first through hole, and is discharged through the gap between the adjusting seat and the communicating hole, at the moment, the pressure generated by the atmosphere in the air pressure chamber to the damping positioning rod is smaller, and slight positioning force is generated; when the damping positioning rod slides through the third through hole, the damping positioning rod blocks the third through hole, atmospheric air in the air pressure chamber can only be discharged through a gap between the adjusting seat and the through hole, at the moment, the damping positioning rod is close to the air pressure chamber to displace and compress the atmospheric air in the air pressure chamber, and the compressed atmospheric air generates pressure on the damping positioning rod, so that the first blade has a positioning function, and the rear half-range positioning is realized; meanwhile, the threaded sleeve drives the spring to compress and store energy, the spring stores energy and drives the threaded sleeve to move reversely, and the damping positioning rod and the side wall of the air pressure chamber have a friction damping function, so that the first blade realizes buffering reset self-closing.

In order to achieve the above object, a third aspect of the present invention provides a hinge structure, including a first blade, the first blade being provided with a first shaft sleeve;

a second vane provided with a second shaft sleeve;

the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve;

the plug is sleeved in the connecting sleeve, an air pressure chamber is formed in the plug, a communicating hole communicated with the air pressure chamber is formed in the plug, and an exhaust hole is formed in the plug and communicated with the communicating hole and the atmosphere;

the first bearing is sleeved in the connecting sleeve;

According to the utility model discloses a hinge structure, when first blade drove the transfer line and rotates, the transfer line ordered about the swivel nut and had the atmospheric pressure chamber displacement that the damping locating lever is close to the end cap, and atmosphere in the atmospheric pressure chamber can only be discharged through the clearance between adjustment seat and the intercommunicating pore, and at this moment, the damping locating lever is close to the atmosphere in the atmospheric pressure chamber displacement compression atmospheric pressure chamber, and the atmosphere compresses tightly the pressure of production of damping locating lever to make this first blade have locate function, realize whole location.

In order to achieve the above object, an embodiment of a fourth aspect of the present invention provides a hinge structure, including a first blade, where the first blade is provided with a first shaft sleeve;

the plug is sleeved in the connecting sleeve, an air pressure chamber is formed in the plug, and a third through hole communicated with the second through hole is formed in the side wall of the air pressure chamber;

the first bearing is sleeved in the connecting sleeve;

According to the utility model discloses a hinge structure, when first blade drives the transfer line and rotates, the transfer line orders about the swivel nut and takes the damping locating lever to be close to the atmospheric pressure chamber displacement of end cap, atmosphere in the atmospheric pressure chamber can only be through the third through-hole of atmospheric pressure chamber, the second through-hole of adapter sleeve and the first through-hole discharge of second axle sleeve, at this moment, the damping locating lever is close to the atmosphere in the atmospheric pressure chamber displacement compression atmospheric pressure chamber, compressed atmosphere produces pressure to the damping locating lever, thereby make this first blade have locate function, realize whole location.

Drawings

Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a first blade mated with a second blade in accordance with an embodiment of the present invention;

fig. 3a is a schematic external view of a coupling sleeve according to an embodiment of the present invention;

fig. 3b is a schematic view of an internal structure of a connecting sleeve according to an embodiment of the present invention;

fig. 4a is a schematic view of an external structure of a plug according to an embodiment of the present invention;

fig. 4b is a schematic view of an internal structure of a plug according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an adjusting seat according to an embodiment of the present invention;

fig. 6a is a schematic structural view of a damping positioning rod according to an embodiment of the present invention;

fig. 6b is a schematic structural diagram of a sliding rod disposed on the damping positioning rod according to an embodiment of the present invention;

fig. 7a is a schematic structural view of a screw insert according to an embodiment of the present invention;

fig. 7b is a schematic view of another angle of a threaded sleeve according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a transmission rod according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a first bearing according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a swivel ring according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram according to a second embodiment of the present invention;

fig. 12 is a schematic view of the cooperation of a second first blade and a second blade according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram according to a third embodiment of the present invention;

fig. 14 is a schematic view of the cooperation of a third first blade with a second blade according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram according to a fourth embodiment of the present invention;

figure 16a is a schematic structural view of a fourth first blade according to an embodiment of the present invention;

fig. 16b is a schematic structural view of a fourth second blade according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram according to a fifth embodiment of the present invention;

fig. 18 is a schematic structural diagram according to a sixth embodiment of the present invention;

fig. 19 is a schematic structural diagram of a six-plug according to an embodiment of the present invention.

Description of the reference symbols

Swivel 10 jack 101

Inner flat edge 102 knurl 103

Slide rod 30 of fastening screw 20

First seal 40 and second seal 50

Second bearing 60 third bearing 70

Spring 80 first blade 01

First sleeve 11 upper sleeve 111

Second vane 02 of lower bushing 112

The first through hole 211 of the second bushing 21

Connecting sleeve 03 second through hole 31

First flange 32 second flange 33

Third flange 34 plug 04

Annular clamping groove 41 pneumatic chamber 42

The third through hole 43 communicates with the hole 44

Necking 441 exhaust hole 45

First axial through hole 46 and second axial through hole 47

Adjusting seat 05 necking part 51

External thread 53 of third seal ring 52

First bearing 06 first annular groove 61

Second annular groove 62 inner ring through hole 63

Drive link 07 screw portion 71

Circumscribed plain edge 72 thread sleeve 08

Screw thread hole 81 connecting screw hole 82

First annular mounting groove 83 damping positioning rod 09

The connecting screw 91 is coupled to the second annular mounting groove 92.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Example one

As shown in fig. 1 to 10, a hinge structure according to a first embodiment of the present invention includes a first blade 01, a second blade 02, a connecting sleeve 03, a plug 04, an adjusting seat 05, a first bearing 06, a transmission rod 07, a thread insert 08, and a damping positioning rod 09. The first blade 01 is provided with a first bushing 11. The second blade 02 is provided with a second shaft sleeve 21, a first through hole 211 is formed on the second shaft sleeve 21, and the second shaft sleeve 21 and the first shaft sleeve 11 are coaxially arranged in an up-and-down alignment manner. In some examples, a notch 12 is provided on the first blade 01, the shape of the notch 12 is adapted to the second blade 02, and the first blade 01 and the second blade 02 are generally called a snap type.

As shown in fig. 1, 3a and 3b, the connecting sleeve 03 is sleeved in the first sleeve 11 and the second sleeve 12, and a second through hole 31 communicating with the first through hole 211 is formed in the connecting sleeve 03.

As shown in fig. 1, 4a and 4b, the plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular clamping groove 41 is formed on the outer side wall of the plug 04, a first flange 32 is formed on the inner side wall of the connecting sleeve 03, and the first flange 32 of the connecting sleeve 03 is embedded into the annular clamping groove 41 of the plug 04, so that the plug 04 and the connecting sleeve are sleeved. An air pressure chamber 42 is formed in the plug 04, a third through hole 43 communicating with the second through hole 31 is formed in the side wall of the air pressure chamber 42, and a communication hole 44 communicating with the air pressure chamber 42 is further formed in the plug 04. An exhaust hole 45 is formed in the plug 04, and the exhaust hole 45 communicates the communication hole 44 with the atmosphere.

As shown in fig. 1 and 5, the adjusting seat 05 is installed in the communication hole 44, the adjusting seat 05 is in clearance fit with the sidewall of the communication hole 44, the air pressure chamber 42 and the air discharge hole 45 are in clearance communication, and air in the air pressure chamber 42 can be discharged to the outside atmosphere through the air discharge hole 45 after passing through the clearance.

As shown in fig. 1 and 9, the first bearing 06 is sleeved in the connecting sleeve 03. In some examples, a first annular groove 61 and a second annular groove 62 are formed on the outer side wall of the first bearing 06, a second flange 33 and a third flange 34 are correspondingly formed on the inner side wall of the connecting sleeve 03, the second flange 33 of the connecting sleeve 03 is embedded in the first annular groove 61 of the first bearing 06, and the third flange 34 of the connecting sleeve 03 is embedded in the second annular groove 62 of the first bearing 06.

As shown in fig. 1, 8 and 10, the driving rod 07 is rotatably sleeved in the first bearing 06, the upper part of the driving rod 07 is fixedly connected with the first shaft sleeve 11, and the lower part of the driving rod 07 is provided with a screw part 71. In some examples, the upper part of the transmission rod 07 passes through the inner ring through hole 63 of the first bearing 06 and is inserted into the insertion hole 101 of the rotary ring 10, the upper part of the transmission rod 07 is provided with an outer tangent flat edge 72, the insertion hole 101 of the rotary ring 10 is provided with an inner tangent flat edge 102 corresponding to the outer tangent flat edge 72, the rotary ring 10 is fixed in the first shaft sleeve 11, the outer side wall of the rotary ring 10 is provided with a knurl 103, and the fastening screw 20 is sequentially screwed through the first shaft sleeve 11 and the rotary ring 10 and locks the transmission rod 07.

As shown in fig. 1, 7a and 7b, a thread hole 81 connected to the screw portion 71 of the transmission lever 07 is provided in the upper portion of the screw housing 08.

As shown in fig. 1, 6a and 6b, the damping positioning rod 09 is connected to the lower portion of the screw sleeve 08. In some examples, the upper portion of the damping positioning rod 09 is formed with a connecting screw 91, the screw sleeve 08 is correspondingly formed with a connecting screw hole 82, and the connecting screw 91 of the damping positioning rod 09 is in threaded connection with the connecting screw hole 82 of the screw sleeve 08. Of course, the threaded sleeve 08 may be integrally and fixedly connected with the damping positioning rod 09. The damping positioning rod 09 is axially slidably sleeved in the air pressure chamber 42 of the connecting sleeve 03 and the plug 04. In some examples, a first axial through hole 46 and a second axial through hole 47 are formed in the side wall of the pneumatic chamber 42 of the plug 04 and are opposite to each other, the sliding rod 30 is radially disposed on the damping positioning rod 09, two ends of the sliding rod 30 are respectively limited in the first axial through hole 46 and the second axial through hole 47, and the axial sliding distance of the damping positioning rod 09 in the connecting sleeve 03 and the pneumatic chamber 42 of the plug 04 can be limited. The damping positioning rod 09 is in sealing fit with the side walls of the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. In some examples, the thread insert 08 has a first annular mounting groove 83 formed thereon, and the first annular mounting groove 83 may be provided in plurality, and the first annular mounting groove 83 is used for mounting the first sealing ring 40 therein. The damping positioning rod 09 is provided with a plurality of second annular mounting grooves 92, and the second sealing ring 50 is mounted in the second annular mounting grooves 92.

When the door is opened by rotating to drive the first blade 01 to rotate, the first blade 01 drives the transmission rod 07 to rotate, the transmission rod 07 drives the threaded sleeve 08 and the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04, when the damping positioning rod 09 does not slide through the third through hole 43, the atmosphere in the air pressure chamber 42 is discharged through the third through hole 43, the second through hole 31 and the first through hole 211 and is discharged through a gap between the adjusting seat 05 and the communicating hole 44, and at the moment, the atmosphere in the air pressure chamber 42 generates smaller pressure on the damping positioning rod 09 and generates slight positioning force; when the damping positioning rod 09 slides through the third through hole 43, the damping positioning rod 09 blocks the third through hole 43, and the atmosphere in the air pressure chamber 42 can only be discharged through the gap between the adjusting seat 05 and the communicating hole 44, at this time, the damping positioning rod 09 approaches the air pressure chamber 42 to displace the atmosphere in the compressed air pressure chamber 42, and the compressed atmosphere generates pressure on the damping positioning rod 09, so that the first blade 01 has a positioning function, and the rear half-range positioning is realized.

As shown in fig. 1, 4b and 5, a necking part 441 is formed at the upper part of the communication hole 44 of the plug 04, a necking part 51 is correspondingly formed at the upper part of the adjusting seat 05, a third sealing ring 52 which is in sealing fit with the necking part 441 is sleeved on the necking part 51, and the area of the cross section of the necking part 51 from bottom to top is gradually reduced at the part above the third sealing ring 52. In some examples, the neck 51 is provided with the third sealing ring 52, and the upper part is provided with a truncated cone. The adjusting seat 05 can be axially movably installed in the plug 04, and the adjusting seat 05 is moved to adjust the size of the gap between the necking part 51 and the necking part 441. In some examples, an internal thread 442 is formed on the inner side wall of the communication hole 44 of the plug 04, an external thread 53 is formed on the outer side wall of the adjusting seat 05, the adjusting seat 05 is in threaded connection with the communication hole 44 of the plug 04, and the adjusting seat 05 can be rotated to drive the adjusting seat 05 to axially displace, so that different positions of the necking portion 51 of the adjusting seat 05 are in clearance fit with the necking portion 441 of the communication hole 44, and therefore the size of the clearance can be adjusted, and even the third sealing ring 52 blocks the communication hole 44, and the size of the positioning force can be adjusted.

The adjustment seat 05 is rotated to drive the adjustment seat to move axially, so that different positions of the necking part 51 of the adjustment seat 05 are in clearance fit with the necking part 441 of the communication hole 44, the adjustment seat 05 is moved to adjust the size of the clearance between the necking part 51 and the necking part 441, the displacement of compressed air in the air pressure chamber 42 is adjusted, and the positioning force of the first blade 01 is adjusted.

As shown in fig. 1 and 2, in some examples, the first bushing 11 includes an upper bushing 111 and a lower bushing 112. Set up second bearing 60 between upper portion axle sleeve 111 and the second axle sleeve 21 upper end, second bearing 60 can rotate to cup joint on adapter sleeve 03, sets up third bearing 70 between lower part axle sleeve 112 and the second axle sleeve 21 lower extreme, and third bearing 70 can rotate to cup joint on end cap 04 for first blade 01 rotates comparatively smoothly for second blade 02.

Example two

As shown in fig. 11 and 12, a hinge structure according to the second embodiment of the present invention includes a first blade 01, a second blade 02, a connecting sleeve 03, a plug 04, an adjusting seat 05, a first bearing 06, a transmission rod 07, a threaded sleeve 08, a damping positioning rod 09, and a spring 70. The first blade 01 is provided with a first bushing 11. The second blade 02 is provided with a second shaft sleeve 21, a first through hole 211 is formed on the second shaft sleeve 21, and the second shaft sleeve 21 and the first shaft sleeve 11 are coaxially arranged in an up-and-down alignment manner. In some examples, the first bushing 11 is an integral part, the first blade 01 and the second blade 02 are the same piece, and the first blade 01 and the second blade 02 are generally referred to as H-shaped.

The connecting sleeve 03 is sleeved in the first shaft sleeve 11 and the second shaft sleeve 12, and a second through hole 31 communicated with the first through hole 211 is formed in the connecting sleeve 03.

The plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular clamping groove 41 is formed on the outer side wall of the plug 04, a first flange 32 is formed on the inner side wall of the connecting sleeve 03, and the first flange 32 of the connecting sleeve 03 is embedded into the annular clamping groove 41 of the plug 04, so that the plug 04 and the connecting sleeve are sleeved. An air pressure chamber 42 is formed in the plug 04, a third through hole 43 communicating with the second through hole 31 is formed in the side wall of the air pressure chamber 42, and a communication hole 44 communicating with the air pressure chamber 42 is further formed in the plug 04. An exhaust hole 45 is formed in the plug 04, and the exhaust hole 45 communicates the communication hole 44 with the atmosphere.

The adjusting seat 05 is arranged in the communicating hole 44, the adjusting seat 05 is in clearance fit with the side wall of the communicating hole 44, the air pressure chamber 42 and the exhaust hole 45 are in clearance communication, and air in the air pressure chamber 42 can be exhausted out of the external atmosphere through the exhaust hole 45 after passing through the clearance.

The first bearing 06 is sleeved in the connecting sleeve 03. In some examples, a first annular groove 61 and a second annular groove 62 are formed on the outer side wall of the first bearing 06, a second flange 33 and a third flange 34 are correspondingly formed on the inner side wall of the connecting sleeve 03, the second flange 33 of the connecting sleeve 03 is embedded in the first annular groove 61 of the first bearing 06, and the third flange 34 of the connecting sleeve 03 is embedded in the second annular groove 62 of the first bearing 06.

The transmission rod 07 is rotatably sleeved in the first bearing 06, the upper part of the transmission rod 07 is fixedly connected with the first shaft sleeve 11, and the lower part of the transmission rod 07 is provided with a screw part 71. In some examples, the upper part of the transmission rod 07 passes through the inner ring through hole 63 of the first bearing 06 and is inserted into the insertion hole 101 of the rotary ring 10, the upper part of the transmission rod 07 is provided with an outer tangent flat edge 72, the insertion hole 101 of the rotary ring 10 is provided with an inner tangent flat edge 102 corresponding to the outer tangent flat edge 72, the rotary ring 10 is fixed in the first shaft sleeve 11, the outer side wall of the rotary ring 10 is provided with a knurl 103, and the fastening screw 20 is sequentially screwed through the first shaft sleeve 11 and the rotary ring 10 and locks the transmission rod 07.

The upper part of the screw sleeve 08 is provided with a screw thread hole 81 connected with the screw rod part 71 of the transmission rod 07.

The damping positioning rod 09 is connected with the lower part of the threaded sleeve 08. In some examples, the upper portion of the damping positioning rod 09 is formed with a connecting screw 91, the screw sleeve 08 is correspondingly formed with a connecting screw hole 82, and the connecting screw 91 of the damping positioning rod 09 is in threaded connection with the connecting screw hole 82 of the screw sleeve 08. Of course, the threaded sleeve 08 may be integrally and fixedly connected with the damping positioning rod 09. The damping positioning rod 09 is axially slidably sleeved in the air pressure chamber 42 of the connecting sleeve 03 and the plug 04. In some examples, a first axial through hole 46 and a second axial through hole 47 are formed in the side wall of the pneumatic chamber 42 of the plug 04 and are opposite to each other, the sliding rod 30 is radially disposed on the damping positioning rod 09, two ends of the sliding rod 30 are respectively limited in the first axial through hole 46 and the second axial through hole 47, and the axial sliding distance of the damping positioning rod 09 in the connecting sleeve 03 and the pneumatic chamber 42 of the plug 04 can be limited. The damping positioning rod 09 is in sealing fit with the side walls of the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. In some examples, the thread insert 08 has a first annular mounting groove 83 formed thereon, and the first annular mounting groove 83 may be provided in plurality, and the first annular mounting groove 83 is used for mounting the first sealing ring 40 therein. The damping positioning rod 09 is provided with a plurality of second annular mounting grooves 92, and the second sealing ring 50 is mounted in the second annular mounting grooves 92.

The spring 80 is sleeved on the damping positioning rod 09, one end of the spring 80 abuts against the threaded sleeve 08, and the other end of the spring 80 abuts against the plug 04.

When the door is opened by rotating to drive the first blade 01 to rotate, the first blade 01 drives the transmission rod 07 to rotate, the transmission rod 07 drives the threaded sleeve 08 and the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04, when the damping positioning rod 09 does not slide through the third through hole 43, the atmosphere in the air pressure chamber 42 is discharged through the third through hole 43, the second through hole 31 and the first through hole 211 and is discharged through a gap between the adjusting seat 05 and the communicating hole 44, and at the moment, the atmosphere in the air pressure chamber 42 generates smaller pressure on the damping positioning rod 09 and generates slight positioning force; when the damping positioning rod 09 slides through the third through hole 43, the damping positioning rod 09 blocks the third through hole 43, and the atmosphere in the air pressure chamber 42 can only be discharged through the gap between the adjusting seat 05 and the communicating hole 44, at this time, the damping positioning rod 09 approaches the air pressure chamber 42 to displace the atmosphere in the compressed air pressure chamber 42, and the compressed atmosphere generates pressure on the damping positioning rod 09, so that the first blade 01 has a positioning function, and the rear half-range positioning is realized. Meanwhile, the threaded sleeve 08 drives the spring 80 to compress and store energy, the spring 80 stores energy and drives the threaded sleeve 08 to move reversely, and the damping positioning rod 09 and the side wall of the air pressure chamber 42 have a friction damping function, so that the first blade 01 realizes buffering, resetting and self-closing.

The upper part of the communication hole 44 of the plug 04 is provided with a necking part 441, the upper part of the adjusting seat 05 is correspondingly provided with a necking part 51, the necking part 51 is sleeved with a third sealing ring 52 which is in sealing fit with the necking part 441, and the area of the cross section of the necking part 51 is gradually reduced from bottom to top at the part above the third sealing ring 52. In some examples, the neck 51 is provided with the third sealing ring 52, and the upper part is provided with a truncated cone. The adjusting seat 05 can be axially movably installed in the plug 04, and the adjusting seat 05 is moved to adjust the size of the gap between the necking part 51 and the necking part 441. In some examples, an internal thread 442 is formed on the inner side wall of the communication hole 44 of the plug 04, an external thread 53 is formed on the outer side wall of the adjusting seat 05, the adjusting seat 05 is in threaded connection with the communication hole 44 of the plug 04, and the adjusting seat 05 can be rotated to drive the adjusting seat 05 to axially displace, so that different positions of the necking portion 51 of the adjusting seat 05 are in clearance fit with the necking portion 441 of the communication hole 44, and therefore the size of the clearance can be adjusted, and even the third sealing ring 52 blocks the communication hole 44, and the size of the positioning force can be adjusted.

In some examples, a bearing is provided between the lower end face of the first sleeve 11 and the upper end face of the second sleeve 21.

EXAMPLE III

As shown in fig. 13 and 14, a hinge structure according to a third embodiment of the present invention is different from the second embodiment in that: the first bushing 11 includes an upper bushing 111 and a lower bushing 112, the upper bushing 111 and the lower bushing 112 are respectively connected to the first blade 01 through a connecting plate, the connecting plate and the first blade 01 have an angular distribution therebetween, and the second bushing 21 is formed on a side surface of the second blade 02. The first blade 01 and second blade 02 structure is commonly referred to as a butterfly.

Example four

As shown in fig. 15, 16a and 16b, a hinge structure according to a fourth embodiment of the present invention is different from the second embodiment in that: the first boss 11 is axially provided on the first blade 01 side, the first blade 01 is an integral part and is provided in an elongated shape, and the second boss 21 is formed on the side surface of the second blade 02. The first blade 01 and second blade 02 configuration is commonly referred to as a flag.

EXAMPLE five

As shown in fig. 17, a hinge structure according to the fifth embodiment of the present invention includes a first blade 01, a second blade 02, a connecting sleeve 03, a plug 04, an adjusting seat 05, a first bearing 06, a transmission rod 07, a threaded sleeve 08, and a damping positioning rod 09. The first blade 01 is provided with a first bushing 11. The second blade 02 is provided with a second shaft sleeve 21, and the second shaft sleeve 21 is coaxially arranged in vertical alignment with the first shaft sleeve 11. In some examples, a notch 12 is provided on the first blade 01, the shape of the notch 12 is adapted to the second blade 02, and the first blade 01 and the second blade 02 are generally called a snap type.

The connecting sleeve 03 is sleeved in the first sleeve 11 and the second sleeve 12.

The plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular clamping groove 41 is formed on the outer side wall of the plug 04, a first flange 32 is formed on the inner side wall of the connecting sleeve 03, and the first flange 32 of the connecting sleeve 03 is embedded into the annular clamping groove 41 of the plug 04, so that the plug 04 and the connecting sleeve are sleeved. The plug 04 is formed with an air pressure chamber 42, and the plug 04 is formed with a communication hole 44 communicating with the air pressure chamber 42. An exhaust hole 45 is formed in the plug 04, and the exhaust hole 45 communicates the communication hole 44 with the atmosphere.

When the first blade 01 is driven to rotate by rotating the door to open, the first blade 01 drives the transmission rod 07 to rotate, the transmission rod 07 drives the threaded sleeve 08 and the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04, the atmosphere in the air pressure chamber 42 can only be discharged through the gap between the adjusting seat 05 and the communicating hole 44, at the moment, the damping positioning rod 09 moves close to the air pressure chamber 42 to compress the atmosphere in the air pressure chamber 42, and the compressed atmosphere generates pressure on the damping positioning rod 09, so that the first blade 01 has a positioning function, and the whole-process positioning is realized.

In some examples, the first bushing 11 includes an upper bushing 111 and a lower bushing 112. Set up second bearing 60 between upper portion axle sleeve 111 and the second axle sleeve 21 upper end, second bearing 60 can rotate to cup joint on adapter sleeve 03, sets up third bearing 70 between lower part axle sleeve 112 and the second axle sleeve 21 lower extreme, and third bearing 70 can rotate to cup joint on end cap 04 for first blade 01 rotates comparatively smoothly for second blade 02.

EXAMPLE six

As shown in fig. 18 and 19, a hinge structure according to the sixth embodiment of the present invention includes a first blade 01, a second blade 02, a connecting sleeve 03, a plug 04, a first bearing 06, a transmission rod 07, a threaded sleeve 08, and a damping positioning rod 09. The first blade 01 is provided with a first bushing 11. The second blade 02 is provided with a second shaft sleeve 21, a first through hole 211 is formed on the second shaft sleeve 21, and the second shaft sleeve 21 and the first shaft sleeve 11 are coaxially arranged in an up-and-down alignment manner. In some examples, a notch 12 is provided on the first blade 01, the shape of the notch 12 is adapted to the second blade 02, and the first blade 01 and the second blade 02 are generally called a snap type.

The plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular clamping groove 41 is formed on the outer side wall of the plug 04, a first flange 32 is formed on the inner side wall of the connecting sleeve 03, and the first flange 32 of the connecting sleeve 03 is embedded into the annular clamping groove 41 of the plug 04, so that the plug 04 and the connecting sleeve are sleeved. An air pressure chamber 42 is formed in the plug 04, and a third through hole 43 communicated with the second through hole 31 is formed in the side wall of the air pressure chamber 42.

When the first blade 01 is driven to rotate by rotating the door to open, the first blade 01 drives the transmission rod 07 to rotate, the transmission rod 07 drives the threaded sleeve 08 and the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04, the atmosphere in the air pressure chamber 42 can only be discharged through the third through hole 43 of the air pressure chamber 42, the second through hole 31 of the connecting sleeve 03 and the first through hole 211 of the second shaft sleeve 21, at the moment, the damping positioning rod 09 moves close to the air pressure chamber 42 and compresses the atmosphere in the air pressure chamber 42, and the compressed atmosphere generates pressure on the damping positioning rod 09, so that the first blade 01 has a positioning function, and whole-course positioning is realized.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A hinge structure characterized by: the blade comprises a first blade, wherein the first blade is provided with a first shaft sleeve;

the first bearing is sleeved in the connecting sleeve;

2. A hinge construction according to claim 1, wherein: a necking part is formed at the upper part of the communicating hole of the plug, a necking part is correspondingly formed at the upper part of the adjusting seat, a third sealing ring which is in sealing fit with the necking part is sleeved on the necking part, and the area of the cross section of the necking part, which is arranged above the third sealing ring, is gradually reduced from bottom to top; the adjusting seat can be axially movably arranged in the plug, and the adjusting seat is moved to adjust the size of a gap between the necking part and the necking part.

3. A hinge construction according to claim 2, wherein: the part of the necking part above the third sealing ring is a truncated cone; and an internal thread is formed on the inner side wall of the communicating hole of the plug, an external thread is formed on the outer side wall of the adjusting seat, and the adjusting seat is in threaded connection with the communicating hole of the plug.

4. A hinge construction according to claim 1, wherein: a connecting screw rod is formed at the upper part of the damping positioning rod, a connecting screw hole is correspondingly formed in the threaded sleeve, and the connecting screw rod of the damping positioning rod is in threaded connection with the connecting screw hole of the threaded sleeve; a first annular mounting groove is formed in the screw sleeve, and a first sealing ring is mounted in the first annular mounting groove; a second annular mounting groove is formed in the damping positioning rod, and a second sealing ring is mounted in the second annular mounting groove; a first axial through hole and a second axial through hole which are opposite to each other are formed in the side wall of the air pressure chamber of the plug, a sliding rod is radially arranged on the damping positioning rod, and two ends of the sliding rod are respectively limited in the first axial through hole and the second axial through hole; an annular clamping groove is formed in the outer side wall of the plug, a first flange is formed on the inner side wall of the connecting sleeve, and the first flange of the connecting sleeve is embedded into the annular clamping groove of the plug; the upper part of the transmission rod penetrates through an inner ring through hole of the first bearing and is inserted into a jack of the rotating ring, an external tangent flat edge is arranged at the upper part of the transmission rod, an internal tangent flat edge corresponding to the external tangent flat edge is arranged in the jack of the rotating ring, the rotating ring is fixed in the first shaft sleeve, and a fixedly connected screw rod sequentially penetrates through the first shaft sleeve and the rotating ring in a screwed mode and locks the transmission rod; a first annular groove and a second annular groove are formed on the outer side wall of the first bearing, a second flange and a third flange are correspondingly formed on the inner side wall of the connecting sleeve, the second flange of the connecting sleeve is embedded into the first annular groove of the first bearing, and the third flange of the connecting sleeve is embedded into the second annular groove of the first bearing; the first shaft sleeve comprises an upper shaft sleeve and a lower shaft sleeve, a second bearing is arranged between the upper shaft sleeve and the upper end of the second shaft sleeve, the second bearing can be rotatably sleeved on the connecting sleeve, a third bearing is arranged between the lower shaft sleeve and the lower end of the second shaft sleeve, and the third bearing can be rotatably sleeved on the plug.

5. A hinge structure characterized by: the blade comprises a first blade, wherein the first blade is provided with a first shaft sleeve;

the first bearing is sleeved in the connecting sleeve;

6. A hinge construction according to claim 5, wherein: a necking part is formed at the upper part of the communicating hole of the plug, a necking part is correspondingly formed at the upper part of the adjusting seat, a third sealing ring which is in sealing fit with the necking part is sleeved on the necking part, and the area of the cross section of the necking part, which is arranged above the third sealing ring, is gradually reduced from bottom to top; the adjusting seat can be axially movably arranged in the plug, and the adjusting seat is moved to adjust the size of a gap between the necking part and the necking part.

7. A hinge construction according to claim 6, wherein: the part of the necking part above the third sealing ring is a truncated cone; and an internal thread is formed on the inner side wall of the communicating hole of the plug, an external thread is formed on the outer side wall of the adjusting seat, and the adjusting seat is in threaded connection with the communicating hole of the plug.

8. A hinge structure characterized by: the blade comprises a first blade, wherein the first blade is provided with a first shaft sleeve;

a second vane provided with a second shaft sleeve;

the first bearing is sleeved in the connecting sleeve;

9. A hinge construction according to claim 8, wherein: a necking part is formed at the upper part of the communicating hole of the plug, a necking part is correspondingly formed at the upper part of the adjusting seat, a third sealing ring which is in sealing fit with the necking part is sleeved on the necking part, and the area of the cross section of the necking part, which is arranged above the third sealing ring, is gradually reduced from bottom to top; the adjusting seat can be axially movably arranged in the plug, and the adjusting seat is moved to adjust the size of a gap between the necking part and the necking part.

10. A hinge construction according to claim 9, wherein: the part of the necking part above the third sealing ring is a truncated cone; and an internal thread is formed on the inner side wall of the communicating hole of the plug, an external thread is formed on the outer side wall of the adjusting seat, and the adjusting seat is in threaded connection with the communicating hole of the plug.

11. A hinge structure characterized by: the blade comprises a first blade, wherein the first blade is provided with a first shaft sleeve;

the first bearing is sleeved in the connecting sleeve;