TW202113216A - Hinge structure - Google Patents

Abstract

A hinge structure. 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, sothat the first blade has a positioning function.

Description

Hinge structure

The present invention relates to a hinge structure, in particular to a hinge structure.

Hinges are widely used in doors and windows, car doors, freezer doors, refrigerator doors, cold storage doors, oven doors, oven experimental equipment doors, experimental chamber doors, analog environment experimental equipment doors, mechanical equipment doors, drying equipment doors, soundproof doors, special doors, and preservation Kumen, tea storehouse and civil construction storehouse etc. In the prior art, the hinges have different structures, and the functions they realize are all basic functions of relative rotation.

China's new application number 201310693690.9 discloses a lifting hinge device, including an upper hinge, a lower hinge, a transmission rod and a transmission seat. The upper hinge includes an upper shaft sleeve and an upper hinge piece fixed to the upper shaft sleeve; the lower hinge includes The lower shaft sleeve and the lower hinge piece fixedly connected to the lower shaft sleeve; further comprising: a transmission seat is fixedly connected to the upper shaft sleeve; the bottom end surface of the transmission seat is recessed with a transmission cavity; the inner turning surface of the transmission cavity is provided with a first spiral part ; The transmission rod is fixedly connected to the lower sleeve, the outer turning surface of the transmission rod is provided with a second spiral part, the transmission rod is connected in the transmission cavity, the first spiral part and the second spiral part are matched and meshed, wherein: push up The hinge makes the upper hinge rotate relative to the lower hinge, and the upper hinge can rise through the cooperation of the first spiral part and the second spiral part; the loose push causes the upper hinge to descend under the action of gravity, passing through the first spiral part and the second spiral part. The cooperation of the two helix parts can make the upper hinge automatically reset; the first helix part and the second helix part are both at least double helix structure, and the at least double helix structure includes at least two parallel Helix.

The above-mentioned lifting hinge device does not have a positioning function, and cannot adjust the positioning force. Its applicability is limited. Many application scenarios require the hinge to have a positioning function and the positioning force can be adjusted. In view of this, this case was born.

The present invention aims to solve one of the technical problems in the above technology at least to a certain extent. To this end, an object of the present invention is to provide a hinge structure, which has a blade positioning function, realizes positioning in the second half, and the blade positioning force can be adjusted.

The second object of the present invention is to provide a hinge structure, which has a blade positioning function, realizes positioning in the second half, and the blade can be buffered and reset, and at the same time, the blade positioning force can be adjusted.

The third object of the present invention is to provide a hinge structure, which has a blade positioning function, realizes full positioning, and at the same time, the blade positioning force can be adjusted.

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

To achieve the above objective, an embodiment of the first aspect of the present invention proposes a hinge structure, which includes a first blade, and the first blade is provided with a first sleeve;

A second blade, the second blade is provided with a second sleeve, and a first through hole is formed on the second sleeve;

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

The plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, and a third through hole is formed on the side wall of the pneumatic chamber to communicate with the second through hole, and the plug is also formed with A communication hole communicating with the air pressure chamber, a vent hole is formed in the plug, and the vent hole communicates the communication hole and the atmosphere;

An adjustment seat, the adjustment seat is installed in the communication hole, the adjustment seat is in clearance fit with the side wall of the communication hole, and the gap communicates the air pressure chamber and the exhaust hole;

A first bearing, the first bearing is sleeved in the connecting sleeve;

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

A threaded sleeve, the upper part of the threaded sleeve is provided with a threaded hole connected with the screw part;

Damping positioning rod, the damping positioning rod is connected to the lower part of the screw sleeve, the damping positioning rod is axially sliding sleeved in the air chamber of the connecting sleeve and the plug, and the damping positioning rod is connected to the connecting sleeve It is sealed and matched with the side wall of the air pressure chamber.

According to a hinge structure of an embodiment of the present invention, when the first blade drives the transmission rod to rotate, the transmission rod drives the screw sleeve and the damping positioning rod to move closer to the air pressure chamber of the plug. When the damping positioning rod does not slide through the third through hole, the air pressure chamber The atmosphere in the air is discharged through the third through hole, the second through hole and the first through hole, and at the same time through the gap between the adjusting seat and the communicating hole. At this time, the atmosphere of the air pressure chamber exerts less pressure on the damping positioning rod, resulting in Slight positioning force; when the damping positioning rod slides through the third through hole, the damping positioning rod will block the third through hole, and the atmosphere in the air pressure chamber can only be discharged through the gap between the adjusting seat and the communicating hole. At this time, the damping The positioning rod moves close to the pneumatic chamber and compresses the atmosphere in the pneumatic chamber, and the compressed atmosphere generates pressure on the damping positioning rod, so that the first blade has a positioning function and realizes positioning in the second half.

In addition, the hinge structure proposed according to the foregoing embodiment of the present invention may also have the following additional technical features:

Further, the upper part of the communicating hole of the plug forms a necked part, the upper part of the adjusting seat correspondingly forms a necked part, and the necked part is sleeved with a third sealing ring that is in sealing engagement with the necked part. The upper part of the third sealing ring is arranged in the constriction part so that the area of the cross section gradually decreases from bottom to top; the adjustment seat can be axially moved and installed in the plug, and the adjustment seat can be moved to adjust the contraction. The size of the gap between the neck and the necking part.

According to a hinge structure of an embodiment of the present invention, the adjusting seat can be axially moved and installed in the plug, and the moving adjusting seat adjusts the size of the gap between the necked part and the necked part, thereby adjusting the exhaust of compressed atmosphere in the air pressure chamber. Then adjust the positioning force of the first blade.

Further, the part of the constricted portion above the third sealing ring is set as a truncated cone.

Further, 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 threadedly connected with the communicating hole of the plug.

Further, the upper part of the damping positioning rod is formed with a connecting screw, the screw sleeve is correspondingly formed with a connecting screw hole, and the connecting screw of the damping positioning rod is threadedly connected with the connecting screw hole of the screw sleeve.

Further, a first annular installation groove is formed on the screw sleeve, and a first sealing ring is installed in the first annular installation groove; a second annular installation groove is formed on the damping positioning rod, and the second annular installation groove Install the second sealing ring in the middle.

Further, the side wall of the air pressure chamber of the plug is provided with a first axial through hole and a second axial through hole opposite to each other, a sliding rod is radially arranged on the damping positioning rod, and both ends of the sliding rod They are respectively limited in the first axial through hole and the second axial through hole.

Further, an annular groove is formed on 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 in the annular groove of the plug.

Further, the upper part of the transmission rod passes through the inner ring through hole of the first bearing and is inserted into the insertion hole of the swivel ring, the upper part of the transmission rod is provided with an outer cut flat edge, and the insertion hole of the swivel ring is provided with The outer cutting edge corresponds to the inner cutting edge, the swivel is fixed in the first sleeve, and the fixing screw threaded through the first sleeve and the swivel in turn, 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, and a second flange and a third flange are correspondingly formed on the inner side wall of the connecting sleeve. The second flange is embedded in the first annular groove of the first bearing, and the third flange of the connecting sleeve is embedded in the second annular groove of the first bearing.

Further, the first sleeve includes an upper sleeve and a lower sleeve, a second bearing is arranged between the upper end of the upper sleeve and the upper end of the second sleeve, and the second bearing can be rotatably sleeved on the connection 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.

To achieve the foregoing objective, an embodiment of the second aspect of the present invention proposes a hinge structure, which includes a first blade, and the first blade is provided with a first sleeve;

A second blade, the second blade is provided with a second sleeve, and a first through hole is formed on the second sleeve;

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

The plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, and a third through hole is formed on the side wall of the pneumatic chamber to communicate with the second through hole, and the plug is also formed with A communication hole communicating with the air pressure chamber, a vent hole is formed in the plug, and the vent hole communicates the communication hole and the atmosphere;

An adjustment seat, the adjustment seat is installed in the communication hole, the adjustment seat is in clearance fit with the side wall of the communication hole, and the gap communicates the air pressure chamber and the exhaust hole;

A first bearing, the first bearing is sleeved in the connecting sleeve;

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

A threaded sleeve, the upper part of the threaded sleeve is provided with a threaded hole connected with the screw part;

Damping positioning rod, the damping positioning rod is connected to the lower part of the screw sleeve, the damping positioning rod is axially sliding sleeved in the air chamber of the connecting sleeve and the plug, and the damping positioning rod is connected to the connecting sleeve Sealingly cooperates with the side wall of the air pressure chamber;

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

According to a hinge structure of an embodiment of the present invention, when the first blade drives the transmission rod to rotate, the transmission rod drives the screw sleeve and the damping positioning rod to move closer to the air pressure chamber of the plug. When the damping positioning rod does not slide through the third through hole, the air pressure chamber The atmosphere in the air is discharged through the third through hole, the second through hole and the first through hole, and at the same time through the gap between the adjusting seat and the communicating hole. At this time, the atmosphere of the air pressure chamber exerts less pressure on the damping positioning rod, resulting in Slight positioning force; when the damping positioning rod slides through the third through hole, the damping positioning rod will block the third through hole, and the atmosphere in the air pressure chamber can only be discharged through the gap between the adjusting seat and the communicating hole. At this time, the damping The positioning rod moves close to the air pressure chamber to compress the atmosphere in the air pressure chamber, The compressed atmosphere generates pressure on the damping positioning rod, so that the first blade has a positioning function to achieve positioning in the second half; at the same time, the screw sleeve drives the spring to compress and store energy, and the spring energy storage drives the screw sleeve to move in the opposite direction, and the damping positioning rod and The side wall of the air pressure chamber has a friction damping function, so that the first blade realizes buffer reset and self-closing.

In addition, the hinge structure proposed according to the foregoing embodiment of the present invention may also have the following additional technical features:

Further, the upper part of the communicating hole of the plug forms a necked part, the upper part of the adjusting seat correspondingly forms a necked part, and the necked part is sleeved with a third sealing ring that is in sealing engagement with the necked part. The upper part of the third sealing ring is arranged in the constriction part so that the area of the cross section gradually decreases from bottom to top; the adjustment seat can be axially moved and installed in the plug, and the adjustment seat can be moved to adjust the contraction. The size of the gap between the neck and the necking part.

According to a hinge structure of an embodiment of the present invention, the adjusting seat can be axially moved and installed in the plug, and the moving adjusting seat adjusts the size of the gap between the necked part and the necked part, thereby adjusting the exhaust of compressed atmosphere in the air pressure chamber. Then adjust the positioning force of the first blade.

Further, the part of the constricted portion above the third sealing ring is set as a truncated cone.

Further, 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 threadedly connected with the communicating hole of the plug.

In order to achieve the above objective, the third-party embodiment of the present invention proposes a hinge structure, which includes a first blade, and the first blade is provided with a first sleeve;

A second blade, the second blade is provided with a second sleeve;

A connecting sleeve, the connecting sleeve is sleeved in the first sleeve and the second sleeve;

The plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, a communication hole communicating with the pneumatic chamber is also formed in the plug, and an exhaust hole is formed in the plug, so The exhaust hole communicates with the communication hole and the atmosphere;

An adjustment seat, the adjustment seat is installed in the communication hole, the adjustment seat is in clearance fit with the side wall of the communication hole, and the gap communicates the air pressure chamber and the exhaust hole;

A first bearing, the first bearing is sleeved in the connecting sleeve;

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

A threaded sleeve, the upper part of the threaded sleeve is provided with a threaded hole connected with the screw part;

Damping positioning rod, the damping positioning rod is connected to the lower part of the screw sleeve, the damping positioning rod is axially sliding sleeved in the air chamber of the connecting sleeve and the plug, and the damping positioning rod is connected to the connecting sleeve It is sealed and matched with the side wall of the pressure chamber.

According to a hinge structure of an embodiment of the present invention, when the first blade drives the transmission rod to rotate, the transmission rod drives the screw sleeve and the damping positioning rod to move close to the air pressure chamber of the plug, and the atmosphere in the air pressure chamber can only pass through the adjustment seat and the communicating hole. At this time, the damping positioning rod moves closer to the pneumatic chamber to compress the atmosphere in the pneumatic chamber, and the compressed atmosphere generates pressure on the damping positioning rod, so that the first blade has a positioning function and realizes full positioning.

In addition, the hinge structure proposed according to the foregoing embodiment of the present invention may also have the following additional technical features:

Further, the upper part of the communicating hole of the plug forms a necked part, the upper part of the adjusting seat correspondingly forms a necked part, and the necked part is sleeved with a third sealing ring that is in sealing engagement with the necked part. The upper part of the third sealing ring is set as a cross-sectional surface from bottom to top in the necking portion The product gradually becomes smaller; the adjustment seat can be axially moved and installed in the plug, and the adjustment seat is moved to adjust the size of the gap between the necked portion and the necked portion.

According to a hinge structure of an embodiment of the present invention, the adjusting seat can be axially moved and installed in the plug, and the moving adjusting seat adjusts the size of the gap between the necked portion and the necked portion, thereby adjusting the exhaust of the compressed atmosphere in the air pressure chamber. Then adjust the positioning force of the first blade.

Further, the part of the constricted portion above the third sealing ring is set as a truncated cone.

Further, 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 threadedly connected with the communicating hole of the plug.

To achieve the foregoing objective, an embodiment of the fourth aspect of the present invention proposes a hinge structure, which includes a first blade, and the first blade is provided with a first sleeve;

A second blade, the second blade is provided with a second sleeve, and a first through hole is formed on the second sleeve;

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

A plug, the plug is sleeved in the connecting sleeve, an air pressure chamber is formed in the plug, and a third through hole connected to the second through hole is formed on the side wall of the air pressure chamber;

A first bearing, the first bearing is sleeved in the connecting sleeve;

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

A threaded sleeve, the upper part of the threaded sleeve is provided with a threaded hole connected with the screw part;

Damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, and the resistance The positioning rod is axially slidably sleeved in the air pressure chamber of the connecting sleeve and the plug, and the damping positioning rod is sealingly fitted with the connecting sleeve and the side wall of the air pressure chamber.

According to a hinge structure of an embodiment of the present invention, when the first blade drives the transmission rod to rotate, the transmission rod drives the screw sleeve and the damping positioning rod to move closer to the air pressure chamber of the plug, and the atmosphere in the air pressure chamber can only pass through the third passage of the air pressure chamber. Hole, the second through hole of the connecting sleeve, and the first through hole of the second shaft sleeve. At this time, the damping positioning rod moves close to the pneumatic chamber and compresses the atmosphere in the pneumatic chamber. The compressed atmosphere generates pressure on the damping positioning rod, thereby causing the The first blade has a positioning function to achieve full positioning.

【00150】

10: swivel

101: jack

102: inner cut flat edge

103: Knurling

20: Fixed screw

30: Slider

40: The first sealing ring

50: second sealing ring

60: second bearing

70: The third bearing

80: spring

12: gap

01: The first blade

11: The first sleeve

111: Upper bushing

112: Lower bushing

02: The second blade

21: The second sleeve

211: first through hole

03: Connecting sleeve

31: second through hole

32: first flange

33: second flange

34: third flange

04: Plug

41: Annular card slot

42: Air pressure chamber

43: third through hole

44: Connecting hole

441: Necking

45: vent

46: The first axial through hole

47: second axial through hole

05: Adjust the seat

51: shrink neck

52: third sealing ring

53: External thread

06: The first bearing

61: The first ring groove

62: second annular groove

63: Inner ring through hole

07: Transmission rod

71: Screw part

72: Outside cut flat edge

08: Screw sleeve

81: Thread hole

82: Connection screw hole

83: The first annular mounting groove

09: Damping positioning rod

91: connecting screw

92: The second annular installation groove

Figure 1: A schematic diagram of the structure according to the first embodiment of the present invention.

Figure 2: is a schematic diagram of the cooperation between the first blade and the second blade according to an embodiment of the present invention.

Figure 3a: is a schematic diagram of the external structure of a connecting sleeve according to an embodiment of the present invention.

Figure 3b is a schematic diagram of the internal structure of a connecting sleeve according to an embodiment of the present invention.

Figure 4a: is a schematic diagram of the external structure of a plug according to an embodiment of the present invention.

Figure 4b is a schematic diagram of the internal structure of a plug according to an embodiment of the present invention.

Figure 5: is a structural diagram of an adjusting seat according to an embodiment of the present invention.

Figure 6a: is a schematic structural diagram of a damping positioning rod according to an embodiment of the present invention.

Figure 6b is a schematic structural diagram of a sliding rod arranged on a damping positioning rod according to the first embodiment of the present invention.

Figure 7a: is a schematic diagram of the structure of a threaded sleeve according to an embodiment of the present invention.

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

Figure 8: is a schematic diagram of the structure of a transmission rod according to an embodiment of the present invention.

Figure 9: is a schematic view of the structure of the first bearing according to the first embodiment of the present invention.

Figure 10: is a schematic diagram of the structure of a rotating ring according to an embodiment of the present invention.

Figure 11: is a schematic diagram of the second embodiment according to the present invention.

Figure 12: is a schematic diagram of the cooperation between the first blade and the second blade according to the second embodiment of the present invention.

Figure 13: is a schematic diagram of the structure according to the third embodiment of the present invention.

Figure 14: is a schematic diagram of the cooperation between the first blade and the second blade according to the third embodiment of the present invention.

Figure 15: is a schematic diagram of the structure according to the fourth embodiment of the present invention.

Figure 16a: is a schematic diagram of the structure of the first blade according to the fourth embodiment of the present invention.

Figure 16b is a schematic view of the structure of the second blade according to the fourth embodiment of the present invention.

Figure 17: is a schematic diagram of the structure according to the fifth embodiment of the present invention.

Figure 18: is a schematic diagram of the structure according to the sixth embodiment of the present invention.

Figure 19: is a schematic diagram of the structure of the sixth plug according to the embodiment of the present invention.

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to be used To explain the present invention, it should not be understood as a limitation to the present invention.

As shown in Figures 1 to 10, a hinge structure of the 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, and a transmission rod 07 , Screw sleeve 08 and damping positioning rod 09. The first blade 01 is provided with a first sleeve 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 aligned and coaxially arranged up and down. In some examples, a notch 12 is provided on the first blade 01, and the shape of the notch 12 is adapted to the second blade 02. The structure of the first blade 01 and the second blade 02 is usually called a picture-frame shape.

As shown in FIGS. 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 on the connecting sleeve 03.

As shown in Figure 1, Figure 4a and Figure 4b, the plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular 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 inserted into the annular groove 41 of the plug 04. In, realize the two sockets. The plug 04 forms a pneumatic chamber 42, the side wall of the pneumatic chamber 42 forms a third through hole 43 communicating with the second through hole 31, and the plug 04 also forms a communicating hole 44 communicating with the pneumatic chamber 42. A vent hole 45 is formed in the plug 04, and the vent hole 45 communicates with the communication hole 44 and the atmosphere.

As shown in Figures 1 and 5, the adjusting seat 05 is installed in the communicating hole 44. The adjusting seat 05 is in clearance fit with the side wall of the communicating hole 44. The gap communicates with the air pressure chamber 42 and the exhaust hole 45. The air in the air pressure chamber 42 can pass through After the gap, the outside atmosphere is exhausted through the exhaust hole 45.

[00100] As shown in Figs. 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, and 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 It 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.

[00101] As shown in FIGS. 1, 8 and 10, 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 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 swivel 10, the upper part of the transmission rod 07 is provided with an outer flat edge 72, and the insertion hole 101 of the swivel 10 The inner cutting edge 102 corresponding to the outer cutting edge 72 is set in the center, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel 10 is provided with knurling 103, and the fixing screw 20 is screwed through the first sleeve in turn. Shaft sleeve 11 and swivel 10, and lock the transmission rod 07.

[00102] As shown in FIGS. 1, 7a and 7b, the upper part of the threaded sleeve 08 is provided with a threaded hole 81 connected to the screw portion 71 of the transmission rod 07.

[00103] As shown in Figure 1, Figure 6a and Figure 6b, the damping positioning rod 09 is connected to the lower part of the screw sleeve 08. In some examples, a connecting screw 91 is formed on the upper part of the damping positioning rod 09, a connecting screw hole 82 is correspondingly formed in the screw sleeve 08, and the connecting screw 91 of the damping positioning rod 09 is threadedly connected with the connecting screw hole 82 of the screw sleeve 08. Of course, the screw sleeve 08 can be integrally and fixedly connected with the damping positioning rod 09. The damping positioning rod 09 is axially slidably sleeved in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. In some examples, the side wall of the air pressure chamber 42 of the plug 04 is provided with a first axial through hole 46 and a second axial through hole 47 opposite to each other, and the damping positioning rod 09 is radially provided with a sliding rod 30, two of the sliding rod 30 The ends are respectively restricted in the first axial through hole 46 and the second axial through hole 47, which can limit the axial sliding distance of the damping positioning rod 09 in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. The damping positioning rod 09 is in a sealing fit with the side wall of the air pressure chamber 42 of the connecting sleeve 03 and the plug 04. In some examples, a first annular installation groove 83 is formed on the threaded sleeve 08, the first annular installation groove 83 may be provided in multiple, and the first sealing ring 40 is installed in the first annular installation groove 83. A second ring is formed on the damping positioning rod 09 The installation groove 92, the second annular installation groove 92 can be provided in multiple, and the second sealing ring 50 is installed in the second annular installation groove 92.

[00104] When the door is rotated to open the first blade 01 to rotate, the first blade 01 drives the transmission rod 07 to rotate, and the transmission rod 07 drives the screw sleeve 08 with the damping positioning rod 09 to move closer to the air pressure chamber 42 of the plug 04, and the damping positioning rod 09 is not When sliding 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 at the same time through the gap between the adjusting seat 05 and the communicating hole 44, At this time, the atmosphere of the air pressure chamber 42 generates less pressure on the damping positioning rod 09, resulting in a 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. The atmosphere in the air pressure chamber 42 can only be discharged through the gap between the adjusting seat 05 and the communication hole 44. At this time, 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 air causes the damping positioning rod 09 to move. Pressure, so that the first blade 01 has a positioning function to achieve positioning in the second half.

[00105] As shown in Figure 1, Figure 4b and Figure 5, the upper part of the communicating hole 44 of the plug 04 is formed with a necking part 441, the upper part of the adjusting seat 05 is correspondingly formed with a necking part 51, and the necking part 51 is sleeved and contracted. The part 441 is a third sealing ring 52 that is sealed and fitted, and the necking portion 51 is provided with the third sealing ring 52 and the upper part is set to gradually decrease in cross-sectional area from bottom to top. In some examples, the upper part of the constricted portion 51 provided with the third sealing ring 52 is provided as a truncated cone. The adjusting seat 05 can be axially moved and installed in the plug 04, and the moving adjusting seat 05 adjusts the size of the gap between the constricted portion 51 and the constricted portion 441. In some examples, an internal thread 442 is formed on the inner side wall of the communicating 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 threadedly connected with the communicating hole 44 of the plug 04, and the adjusting seat is rotated 05 can drive its axial displacement, so that different positions of the constricted portion 51 of the adjusting seat 05 are in clearance fit with the constricted portion 441 of the communicating hole 44, so that the size of the gap can be adjusted, and even the third sealing ring 52 can block the communicating hole 44 , Adjust the positioning intensity.

[00106] Rotating the adjusting seat 05 can drive its axial displacement, so that the neck of the adjusting seat 05 can be reduced The different positions of 51 are in clearance fit with the constricted part 441 of the communicating hole 44, and the adjustment seat 05 is moved to adjust the size of the gap between the constricted part 51 and the constricted part 441, so as to adjust the exhaust volume of the compressed atmosphere in the pneumatic chamber 42, and then Adjust the positioning force of the first blade 01.

[00107] As shown in FIGS. 1 and 2, in some examples, the first sleeve 11 includes an upper sleeve 111 and a lower sleeve 112. A second bearing 60 is provided between the upper sleeve 111 and the upper end of the second sleeve 21, the second bearing 60 can be rotatably sleeved on the connecting sleeve 03, and a third bearing is provided between the lower sleeve 112 and the lower end of the second sleeve 21 70. The third bearing 70 can be rotatably sleeved on the plug 04, so that the first blade 01 rotates relatively smoothly with respect to the second blade 02.

[00108] As shown in Figures 11 and 12, a hinge structure of 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, Transmission rod 07, screw sleeve 08, damping positioning rod 09 and spring 70. The first blade 01 is provided with a first sleeve 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 aligned and coaxially arranged up and down. In some examples, the first sleeve 11 is an integral part, the first blade 01 and the second blade 02 are the same sheet shape, and the structure of the first blade 01 and the second blade 02 is generally called an H-shape.

[00109] 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 on the connecting sleeve 03.

[00110] The plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular 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 inserted into the annular groove 41 of the plug 04. In, realize the two sockets. The plug 04 forms a pneumatic chamber 42, the side wall of the pneumatic chamber 42 forms a third through hole 43 communicating with the second through hole 31, and the plug 04 also forms a communicating hole 44 communicating with the pneumatic chamber 42. A vent hole 45 is formed in the plug 04, and the vent hole 45 communicates with the communication Hole 44 and atmosphere.

[00111] The adjusting seat 05 is installed in the communicating hole 44. The adjusting seat 05 is in clearance fit with the side wall of the communicating hole 44. The gap connects the air pressure chamber 42 and the exhaust hole 45, and the air in the air pressure chamber 42 can pass through the exhaust hole after passing through the gap. 45 Exhaust the outside atmosphere.

[00112] 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, and 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 inserted into the first annular groove 61 of the first bearing 06, and the third flange 34 of the connecting sleeve 03 is inserted into the second annular groove 62 of the first bearing 06.

[00113] 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 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 swivel 10, the upper part of the transmission rod 07 is provided with an outer flat edge 72, and the insertion hole 101 of the swivel 10 The inner cutting edge 102 corresponding to the outer cutting edge 72 is set in the center, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel 10 is provided with knurling 103, and the fixing screw 20 is screwed through the first sleeve in turn. Shaft sleeve 11 and swivel 10, and lock the transmission rod 07.

[00114] The upper part of the threaded sleeve 08 is provided with a threaded hole 81 connected with the screw portion 71 of the transmission rod 07.

[00115] The damping positioning rod 09 is connected to the lower part of the screw sleeve 08. In some examples, a connecting screw 91 is formed on the upper part of the damping positioning rod 09, a connecting screw hole 82 is correspondingly formed in the screw sleeve 08, and the connecting screw 91 of the damping positioning rod 09 is threadedly connected with the connecting screw hole 82 of the screw sleeve 08. Of course, the screw sleeve 08 can be integrally and fixedly connected with the damping positioning rod 09. The damping positioning rod 09 is axially slidably sleeved in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. In some examples, the side wall of the air pressure chamber 42 of the plug 04 is provided with a first axial through hole 46 and a second axial through hole 47 opposite to each other, and the damping positioning rod 09 is radially provided with a sliding rod 30, two of the sliding rod 30 The ends are respectively restricted in the first axial through hole 46 and the second axial through hole 47, which can limit the axial sliding distance of the damping positioning rod 09 in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. The damping positioning rod 09 is in a sealing fit with the side wall of the air pressure chamber 42 of the connecting sleeve 03 and the plug 04. In some examples, a first annular installation groove 83 is formed on the threaded sleeve 08, the first annular installation groove 83 may be provided in multiple, and the first sealing ring 40 is installed in the first annular installation groove 83. A second annular installation groove 92 is formed on the damping positioning rod 09, the second annular installation groove 92 may be provided in multiples, and the second sealing ring 50 is installed in the second annular installation groove 92.

[00116] The spring 80 is sleeved on the damping positioning rod 09, one end of the spring 80 is pressed against the screw sleeve 08, and the other end of the spring 80 is pressed against the plug 04.

[00117] When the door is turned to open the first blade 01 to rotate, the first blade 01 drives the transmission rod 07 to rotate, and the transmission rod 07 drives the screw sleeve 08 with the damping positioning rod 09 to move closer to the air pressure chamber 42 of the plug 04, and the damping positioning rod 09 is not When sliding 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 at the same time through the gap between the adjusting seat 05 and the communicating hole 44, At this time, the atmosphere of the air pressure chamber 42 generates less pressure on the damping positioning rod 09, resulting in a 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. The atmosphere in the air pressure chamber 42 can only be discharged through the gap between the adjusting seat 05 and the communication hole 44. At this time, 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 air causes the damping positioning rod 09 to move. Pressure, so that the first blade 01 has a positioning function to achieve positioning in the second half. At the same time, the screw sleeve 08 drives the spring 80 to compress and store energy, and the spring 80 stores energy to drive the screw sleeve 08 to move in the opposite direction, 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 a buffer reset. close.

[00118] The upper part of the communicating hole 44 of the plug 04 is formed with a necked part 441, and the upper part of the adjusting seat 05 is formed with a necked part 51 correspondingly. The neck 51 is provided with the third sealing ring 52 and the upper part is set to gradually decrease in cross-sectional area from bottom to top. In some examples, the upper part of the constricted portion 51 provided with the third sealing ring 52 is provided as a truncated cone. The adjusting seat 05 can be axially moved and installed in the plug 04, and the moving adjusting seat 05 adjusts the size of the gap between the constricted portion 51 and the constricted portion 441. In some examples, an internal thread 442 is formed on the inner side wall of the communicating 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 threadedly connected with the communicating hole 44 of the plug 04, and the adjusting seat is rotated 05 can drive its axial displacement, so that different positions of the constricted portion 51 of the adjusting seat 05 are in clearance fit with the constricted portion 441 of the communicating hole 44, so that the size of the gap can be adjusted, and even the third sealing ring 52 can block the communicating hole 44 , Adjust the positioning intensity.

[00119] Rotating the adjusting seat 05 can drive its axial displacement, so that different positions of the constricted portion 51 of the adjusting seat 05 are in clearance fit with the constricted portion 441 of the communicating hole 44, and the adjusting seat 05 is moved to adjust the constricted portion 51 and the constricted portion. The size of the gap between 441 adjusts the exhaust volume of the compressed atmosphere in the pneumatic chamber 42 and thereby adjusts the positioning force of the first blade 01.

[00120] In some examples, a bearing is provided between the lower end surface of the first sleeve 11 and the upper end surface of the second sleeve 21.

[00121] As shown in Figures 13 and 14, a hinge structure of the third embodiment of the present invention is different from the second embodiment in that: the first sleeve 11 includes an upper sleeve 111 and a lower sleeve 112, and an upper sleeve 111 and The lower sleeve 112 is respectively connected to the first blade 01 through a connecting plate, and the connecting plate and the first blade 01 have an angular distribution, and the second sleeve 21 is formed on the side surface of the second blade 02. The structure of the first blade 01 and the second blade 02 is generally called a butterfly shape.

[00122] As shown in Figure 15, Figure 16a and Figure 16b, a hinge structure of the fourth embodiment of the present invention is different from the second embodiment in that the first sleeve 11 is axially arranged on the side of the first blade 01, and the first The blade 01 is an integral part and is arranged in a long strip shape, and the second sleeve 21 is formed on the side surface of the second blade 02 on. The structure of the first blade 01 and the second blade 02 is generally called a flag shape.

[00123] As shown in FIG. 17, a hinge structure of 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, and a transmission rod 07 , Screw sleeve 08 and damping positioning rod 09. The first blade 01 is provided with a first sleeve 11. The second blade 02 is provided with a second shaft sleeve 21, and the second shaft sleeve 21 and the first shaft sleeve 11 are aligned and coaxially arranged up and down. In some examples, a notch 12 is provided on the first blade 01, and the shape of the notch 12 is adapted to the second blade 02. The structure of the first blade 01 and the second blade 02 is usually called a picture-frame shape.

[00124] The connecting sleeve 03 is sleeved in the first sleeve 11 and the second sleeve 12.

[00125] The plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular 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 inserted into the annular groove 41 of the plug 04. In, realize the two sockets. A pneumatic chamber 42 is formed in the plug 04, and a communication hole 44 communicating with the pneumatic chamber 42 is also formed in the plug 04. A vent hole 45 is formed in the plug 04, and the vent hole 45 communicates with the communication hole 44 and the atmosphere.

[00126] The adjusting seat 05 is installed in the communicating hole 44. The adjusting seat 05 is in clearance fit with the side wall of the communicating hole 44. The gap communicates with the air pressure chamber 42 and the exhaust hole 45. The air in the air pressure chamber 42 can pass through the exhaust hole after passing through the gap. 45 Exhaust the outside atmosphere.

[00127] 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, and 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 inserted into the first annular groove 61 of the first bearing 06, and the third flange 34 of the connecting sleeve 03 is inserted into the second annular groove 62 of the first bearing 06.

[00128] The transmission rod 07 is rotatably sleeved in the first bearing 06, and the upper part of the transmission rod 07 is connected to the first shaft The sleeve 11 is fixedly connected, and a screw part 71 is provided at the lower part of the transmission rod 07. 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 swivel 10, the upper part of the transmission rod 07 is provided with an outer flat edge 72, and the insertion hole 101 of the swivel 10 The inner cutting edge 102 corresponding to the outer cutting edge 72 is set in the center, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel 10 is provided with knurling 103, and the fixing screw 20 is screwed through the first sleeve in turn. Shaft sleeve 11 and swivel 10, and lock the transmission rod 07.

[00129] The upper part of the threaded sleeve 08 is provided with a threaded hole 81 connected with the screw portion 71 of the transmission rod 07.

[00130] The damping positioning rod 09 is connected to the lower part of the screw sleeve 08. In some examples, a connecting screw 91 is formed on the upper part of the damping positioning rod 09, a connecting screw hole 82 is correspondingly formed in the screw sleeve 08, and the connecting screw 91 of the damping positioning rod 09 is threadedly connected with the connecting screw hole 82 of the screw sleeve 08. Of course, the screw sleeve 08 can be integrally and fixedly connected with the damping positioning rod 09. The damping positioning rod 09 is axially slidably sleeved in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. In some examples, the side wall of the air pressure chamber 42 of the plug 04 is provided with a first axial through hole 46 and a second axial through hole 47 opposite to each other, and the damping positioning rod 09 is radially provided with a sliding rod 30, two of the sliding rod 30 The ends are respectively restricted in the first axial through hole 46 and the second axial through hole 47, which can limit the axial sliding distance of the damping positioning rod 09 in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. The damping positioning rod 09 is in a sealing fit with the side wall of the air pressure chamber 42 of the connecting sleeve 03 and the plug 04. In some examples, a first annular installation groove 83 is formed on the threaded sleeve 08, the first annular installation groove 83 may be provided in multiple, and the first sealing ring 40 is installed in the first annular installation groove 83. A second annular installation groove 92 is formed on the damping positioning rod 09, the second annular installation groove 92 may be provided in multiples, and the second sealing ring 50 is installed in the second annular installation groove 92.

[00131] When the door is turned to open the first blade 01 to rotate, the first blade 01 drives the transmission rod 07 to rotate, and the transmission rod 07 drives the screw sleeve 08 with the damping positioning rod 09 to move the air pressure chamber 42 near the plug 04, and the air pressure chamber 42 The atmosphere 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 moves close to the air pressure chamber 42 and compresses the atmosphere in the air pressure chamber 42, and the compressed air affects the damping positioning rod. 09 generates pressure, so that the first blade 01 has a positioning function to achieve full positioning.

[00132] The upper part of the communicating hole 44 of the plug 04 is formed with a constricted portion 441, and the upper part of the adjusting seat 05 is correspondingly formed with a constricted portion 51. The constricted portion 51 is sleeved with a third sealing ring 52 that is in sealing engagement with the constricted portion 441. The neck 51 is provided with the third sealing ring 52 and the upper part is set to gradually decrease in cross-sectional area from bottom to top. In some examples, the upper part of the constricted portion 51 provided with the third sealing ring 52 is provided as a truncated cone. The adjusting seat 05 can be axially moved and installed in the plug 04, and the moving adjusting seat 05 adjusts the size of the gap between the constricted portion 51 and the constricted portion 441. In some examples, an internal thread 442 is formed on the inner side wall of the communicating 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 threadedly connected with the communicating hole 44 of the plug 04, and the adjusting seat is rotated 05 can drive its axial displacement, so that different positions of the constricted portion 51 of the adjusting seat 05 are in clearance fit with the constricted portion 441 of the communicating hole 44, so that the size of the gap can be adjusted, and even the third sealing ring 52 can block the communicating hole 44 , Adjust the positioning intensity.

[00133] Rotating the adjusting seat 05 can drive its axial displacement, so that the different positions of the constricted part 51 of the adjusting seat 05 and the constricted part 441 of the communicating hole 44 are in clearance fit, and the adjusting seat 05 is moved to adjust the constricted part 51 and the constricted part. The size of the gap between 441 adjusts the exhaust volume of the compressed atmosphere in the pneumatic chamber 42 and thereby adjusts the positioning force of the first blade 01.

[00134] In some examples, the first sleeve 11 includes an upper sleeve 111 and a lower sleeve 112. A second bearing 60 is provided between the upper sleeve 111 and the upper end of the second sleeve 21, the second bearing 60 can be rotatably sleeved on the connecting sleeve 03, and a third bearing is provided between the lower sleeve 112 and the lower end of the second sleeve 21 70. The third bearing 70 can be rotatably sleeved on the plug 04, so that the first blade 01 rotates relatively smoothly with respect to the second blade 02.

[00135] As shown in Figures 18 and 19, a hinge structure of 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, screw Set of 08 and damping positioning rod 09. The first blade 01 is provided with a first sleeve 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 aligned and coaxially arranged up and down. In some examples, a notch 12 is provided on the first blade 01, and the shape of the notch 12 is adapted to the second blade 02. The structure of the first blade 01 and the second blade 02 is usually called a picture-frame shape.

[00136] 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 on the connecting sleeve 03.

[00137] The plug 04 is sleeved in the connecting sleeve 03. In some examples, an annular 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 inserted into the annular groove 41 of the plug 04. In, realize the two sockets. A pneumatic chamber 42 is formed in the plug 04, and the side wall of the pneumatic chamber 42 is formed with a third through hole 43 that communicates with the second through hole 31.

[00138] 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, and 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 inserted into the first annular groove 61 of the first bearing 06, and the third flange 34 of the connecting sleeve 03 is inserted into the second annular groove 62 of the first bearing 06.

[00139] 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 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 swivel 10, the upper part of the transmission rod 07 is provided with an outer flat edge 72, and the insertion hole 101 of the swivel 10 The inner cutting edge 102 corresponding to the outer cutting edge 72 is set in the center, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel 10 is provided with knurling 103, and the fixing screw 20 is screwed through the first sleeve in turn. Shaft sleeve 11 and swivel 10, and lock the transmission rod 07.

[00140] The upper part of the threaded sleeve 08 is provided with a threaded hole 81 connected to the screw portion 71 of the transmission rod 07.

[00141] The damping positioning rod 09 is connected to the lower part of the screw sleeve 08. In some examples, a connecting screw 91 is formed on the upper part of the damping positioning rod 09, a connecting screw hole 82 is correspondingly formed in the screw sleeve 08, and the connecting screw 91 of the damping positioning rod 09 is threadedly connected with the connecting screw hole 82 of the screw sleeve 08. Of course, the screw sleeve 08 can be integrally and fixedly connected with the damping positioning rod 09. The damping positioning rod 09 is axially slidably sleeved in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. In some examples, the side wall of the air pressure chamber 42 of the plug 04 is provided with a first axial through hole 46 and a second axial through hole 47 opposite to each other, and the damping positioning rod 09 is radially provided with a sliding rod 30, two of the sliding rod 30 The ends are respectively restricted in the first axial through hole 46 and the second axial through hole 47, which can limit the axial sliding distance of the damping positioning rod 09 in the connecting sleeve 03 and the air pressure chamber 42 of the plug 04. The damping positioning rod 09 is in a sealing fit with the side wall of the air pressure chamber 42 of the connecting sleeve 03 and the plug 04. In some examples, a first annular installation groove 83 is formed on the threaded sleeve 08, the first annular installation groove 83 may be provided in multiple, and the first sealing ring 40 is installed in the first annular installation groove 83. A second annular installation groove 92 is formed on the damping positioning rod 09, the second annular installation groove 92 may be provided in multiples, and the second sealing ring 50 is installed in the second annular installation groove 92.

[00142] When the door is turned to open the first blade 01 to rotate, the first blade 01 drives the transmission rod 07 to rotate, and the transmission rod 07 drives the screw sleeve 08 with the damping positioning rod 09 to move the air pressure chamber 42 near the plug 04. The atmosphere can only be discharged through the third through hole 43 of the pneumatic chamber 42, the second through hole 31 of the connecting sleeve 03, and the first through hole 211 of the second sleeve 21. At this time, the damping positioning rod 09 moves and compresses near the pneumatic chamber 42. The atmosphere in the air pressure chamber 42 and the compressed atmosphere generate pressure on the damping positioning rod 09, so that the first blade 01 has a positioning function to achieve full positioning.

[00143] In some examples, the first sleeve 11 includes an upper sleeve 111 and a lower sleeve 112. A second bearing 60 is provided between the upper sleeve 111 and the upper end of the second sleeve 21, the second bearing 60 can be rotatably sleeved on the connecting sleeve 03, and a third bearing is provided between the lower sleeve 112 and the lower end of the second sleeve 21 70. The third bearing 70 can be rotatably sleeved on the plug 04, so that the first blade 01 is relative to the second blade 02 The rotation is smoother.

[00144] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front" "," "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and other instructions The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed in a specific orientation, and Therefore, it cannot be understood as a limitation of the present invention.

[00145] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless otherwise specifically defined.

[00146] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or It can be detachably connected or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.

[00147] In the present invention, unless expressly stipulated and defined otherwise, the "on" or "under" of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features. The second feature is not in direct contact but through another feature between them. and Moreover, the "above", "above" and "above" of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature. The "below", "below" and "below" the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

[00148] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. means to describe in conjunction with the embodiment or the example The specific features, structures, materials or characteristics of are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above-mentioned terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can join and combine different embodiments or examples described in this specification.

[00149] Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art are within the scope of the present invention. Variations, modifications, substitutions, and modifications can be made to the above-mentioned embodiments.

20: Fixed screw

30: Slider

40: The first sealing ring

50: second sealing ring

60: second bearing

70: The third bearing

01: The first blade

12: gap

02: The second blade

21: The second sleeve

211: first through hole

03: Connecting sleeve

31: second through hole

04: Plug

42: Air pressure chamber

43: third through hole

441: Necking

05: Adjust the seat

51: shrink neck

52: third sealing ring

53: External thread

06: The first bearing

07: Transmission rod

71: Screw part

08: Screw sleeve

09: Damping positioning rod

10: swivel

Claims (11)

A hinge structure, characterized in that it comprises: The first blade, the first blade is provided with a first sleeve; A second blade, the second blade is provided with a second sleeve, and a first through hole is formed on the second sleeve; A connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole communicating with the first through hole is formed on the connecting sleeve; A plug, the plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, the side wall of the pneumatic chamber is formed with a third through hole communicating with the second through hole, and the plug also forms a communication with the pneumatic chamber A hole, a vent hole is formed in the plug, and the vent hole communicates with the communicating hole and the atmosphere; An adjusting seat, the adjusting seat is installed in the communicating hole, the adjusting seat is in clearance fit with the side wall of the communicating hole, and the gap is connected to the air pressure chamber and the exhaust hole; A first bearing, the first bearing is sleeved in the connecting sleeve; A transmission rod, the transmission rod is rotatably sleeved in the first bearing, the upper part of the transmission rod is fixedly connected with the first sleeve, and the lower part of the transmission rod is provided with a screw part; Screw sleeve, the upper part of the screw sleeve is provided with a threaded hole connected with the screw part; Damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidingly sleeved in the air pressure chamber of the connecting sleeve and the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Sealed fit. The hinge structure according to claim 1, wherein the upper part of the communicating hole of the plug forms a necked part, the upper part of the adjusting seat correspondingly forms a necked part, and the necked part is sleeved on the necked part that is in sealing engagement with the necked part. Three sealing rings, the necking part is provided with the third sealing ring and the upper part of the third sealing ring is set so that the area of the cross section gradually decreases from bottom to top; the adjusting seat can be axially moved and installed in the plug to move the adjusting seat Adjust the size of the gap between the necked portion and the necked portion. The hinge structure according to claim 2, wherein the part of the constricted portion above the third sealing ring is set as a truncated cone; an internal thread is formed on the inner side wall of the communicating hole of the plug, and the outer side wall of the adjusting seat An external thread is formed, and the adjusting seat is threadedly connected with the communicating hole of the plug. The hinge structure according to claim 1, wherein the upper part of the damping positioning rod is formed with a connecting screw, the screw sleeve is correspondingly formed with a connecting screw hole, and the connecting screw of the damping positioning rod is threadedly connected with the connecting screw hole of the screw sleeve; A first annular installation groove is formed on the screw sleeve, and a first sealing ring is installed in the first annular installation groove; a second annular installation groove is formed on the damping positioning rod, and a second sealing ring is installed in the second annular installation groove The side wall of the air pressure chamber of the plug is provided with a first axial through hole and a second axial through hole, the damping positioning rod is radially provided with a sliding rod, and both ends of the sliding rod are respectively limited in the first shaft Into the through hole and the second axial through hole; an annular groove is formed on 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 in the plug The upper part of the transmission rod passes through the inner ring through hole of the first bearing and is inserted into the socket of the swivel, the upper part of the transmission rod is provided with an outer cutting flat edge, and the socket of the swivel is arranged with the outer The inscribed flat edge corresponding to the flat edge is cut, the swivel is fixed in the first sleeve, the fixing screw threaded through the first sleeve and the swivel in turn, and the transmission rod is locked; the first bearing A first annular groove and a second annular groove are formed on the outer side wall of the connecting sleeve, a second flange and a third flange are correspondingly formed on the inner side wall of the connecting sleeve, and the second flange of the connecting sleeve is embedded in the first bearing In the first annular groove of the connecting sleeve, the third flange of the connecting sleeve is embedded in the second annular groove of the first bearing; the first sleeve includes an upper sleeve and a lower sleeve, and the upper sleeve is connected to the A second bearing is arranged between the upper end of the second sleeve, the second bearing can be rotatably sleeved on the connecting sleeve, and a third bearing is arranged between the lower sleeve and the lower end of the second sleeve, and the third bearing can rotate Sleeve on the plug. A hinge structure, characterized in that it comprises: The first blade, the first blade is provided with a first sleeve; A second blade, the second blade is provided with a second sleeve, and a first through hole is formed on the second sleeve; A connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole communicating with the first through hole is formed on the connecting sleeve; A plug, the plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, the side wall of the pneumatic chamber is formed with a third through hole communicating with the second through hole, and the plug also forms a communication with the pneumatic chamber A hole, a vent hole is formed in the plug, and the vent hole communicates with the communicating hole and the atmosphere; An adjusting seat, the adjusting seat is installed in the communicating hole, the adjusting seat is in clearance fit with the side wall of the communicating hole, and the gap is connected to the air pressure chamber and the exhaust hole; A first bearing, the first bearing is sleeved in the connecting sleeve; A transmission rod, the transmission rod is rotatably sleeved in the first bearing, the upper part of the transmission rod is fixedly connected with the first sleeve, and the lower part of the transmission rod is provided with a screw part; Screw sleeve, the upper part of the screw sleeve is provided with a threaded hole connected with the screw part; Damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidingly sleeved in the air pressure chamber of the connecting sleeve and the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Hermetic fit A spring is sleeved on the damping positioning rod, one end of the spring abuts on the screw sleeve, and the other end of the spring abuts on the plug. The hinge structure according to claim 5, wherein the upper part of the communicating hole of the plug forms a necked part, the upper part of the adjusting seat correspondingly forms a necked part, and the necked part is sleeved with the necked part that is in sealing engagement with the necked part. Three sealing rings, the necking part is provided with the third sealing ring and the upper part is set as a cross section from bottom to top The area gradually becomes smaller; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat is moved to adjust the size of the gap between the necked portion and the necked portion. The hinge structure according to claim 6, wherein the part of the constricted portion above the third sealing ring is set as a truncated cone; an internal thread is formed on the inner side wall of the communicating hole of the plug, and the outer side wall of the adjusting seat An external thread is formed, and the adjusting seat is threadedly connected with the communicating hole of the plug. A hinge structure, characterized in that it comprises: The first blade, the first blade is provided with a first sleeve; A second blade, the second blade is provided with a second sleeve; A connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve; A plug, the plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, a communication hole communicating with the pneumatic chamber is also formed in the plug, an exhaust hole is formed in the plug, and the exhaust hole communicates with the Connecting holes and atmosphere; An adjusting seat, the adjusting seat is installed in the communicating hole, the adjusting seat is in clearance fit with the side wall of the communicating hole, and the gap is connected to the air pressure chamber and the exhaust hole; A first bearing, the first bearing is sleeved in the connecting sleeve; A transmission rod, the transmission rod is rotatably sleeved in the first bearing, the upper part of the transmission rod is fixedly connected with the first sleeve, and the lower part of the transmission rod is provided with a screw part; Screw sleeve, the upper part of the screw sleeve is provided with a threaded hole connected with the screw part; Damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidingly sleeved in the air pressure chamber of the connecting sleeve and the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Sealed fit. The hinge structure according to claim 8, wherein the upper part of the communicating hole of the plug forms a necking part, and the The upper part of the adjusting seat correspondingly forms a constricted portion, and the constricted portion is sleeved with a third sealing ring that is in a sealing fit with the constricted portion. The constricted portion is provided with the third sealing ring and the upper part is set as an area from bottom to top Gradually becomes smaller; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat is moved to adjust the size of the gap between the necked portion and the necked portion. The hinge structure according to claim 9, wherein the part of the constricted portion above the third sealing ring is set as a truncated cone; an internal thread is formed on the inner side wall of the communicating hole of the plug, and the outer side wall of the adjusting seat An external thread is formed on the upper part, and the adjusting seat is threadedly connected with the communicating hole of the plug. A hinge structure, characterized in that it comprises: The first blade, the first blade is provided with a first sleeve; A second blade, the second blade is provided with a second sleeve, and a first through hole is formed on the second sleeve; A connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole communicating with the first through hole is formed on the connecting sleeve; A plug, the plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, and a third through hole connected to the second through hole is formed on the side wall of the pneumatic chamber; A first bearing, the first bearing is sleeved in the connecting sleeve; A transmission rod, the transmission rod is rotatably sleeved in the first bearing, the upper part of the transmission rod is fixedly connected with the first sleeve, and the lower part of the transmission rod is provided with a screw part; Screw sleeve, the upper part of the screw sleeve is provided with a threaded hole connected with the screw part; Damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidingly sleeved in the air pressure chamber of the connecting sleeve and the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Sealed fit.

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