TWI751588B - Hinge structure - Google Patents

Abstract

A hinge structure, when the first blade drives the transmission rod to rotate, the transmission rod drives the screw sleeve together with the damping positioning rod to move close to the air pressure chamber of the plug; The atmosphere in the compressed air chamber generates pressure on the damping positioning rod, so that the first blade has a positioning function. The invention has the function of blade positioning, and the strength of blade positioning can be adjusted.

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 box doors, analog environmental experimental equipment doors, mechanical equipment doors, drying equipment doors, sound insulation doors, special doors, fresh-keeping Kumen, Tea Kumen and Civil Engineering Kumen, etc. In the prior art, the hinges have different structures, and the functions implemented by the hinges are the basic functions of relative rotation.

The Chinese new type application No. 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; also include: the transmission seat is fixedly connected to the upper shaft sleeve, the bottom end face of the transmission seat is concavely provided with a transmission cavity, and the inner rotating surface of the transmission cavity is provided with a first spiral part The transmission rod is fixedly connected to the lower shaft sleeve, the outer rotating surface of the transmission rod is provided with a second helical part, the transmission rod is connected in the transmission cavity, and the first helical part and the second helical part are matched and meshed, wherein: push the upper 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 cooperation of the two helical parts can make the upper hinge automatically reset; the first helical part and the second helical part are both at least double helical structures, and the at least double helical structures include at least two parallel Helix.

The above-mentioned lifting hinge device does not have a positioning function, and it is impossible to adjust the positioning force, and its applicability is limited. However, many application scenarios require the hinge to have a positioning function, and the positioning force can be adjusted. In view of this, this case came into being.

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

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

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

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a hinge structure, which includes a first blade, and the first blade is provided with a first bushing;

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

a connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole that communicates 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, the side wall of the air pressure chamber forms a third through hole that communicates with the second through hole, and the plug is also formed with a communication hole communicated with the air pressure chamber, an exhaust hole is formed in the plug, and 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 clearance communicates with the air pressure chamber and the exhaust hole;

a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part;

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

A damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, and the damping positioning rod is connected with the connecting sleeve It is sealingly 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 close to the air pressure chamber of the plug, and when the damping positioning rod does not slide through the third through hole, the air pressure chamber The air 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 adjustment seat and the communication hole. Slight positioning force; when the damping positioning rod slides through the third through hole, the damping positioning rod blocks the third through hole, and the air in the air pressure chamber can only be discharged through the gap between the adjustment seat and the communication hole. The 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 realizes positioning in the second half.

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

Further, a constriction portion is formed on the upper portion of the communication hole of the plug, a constriction portion is formed on the upper portion of the adjustment seat, and a third sealing ring sealingly matched with the constriction portion is sleeved on the constriction portion. The upper part of the third sealing ring is set on the constriction part so that the area of the cross section becomes gradually smaller from bottom to top; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat can be moved to adjust the constriction. The size of the gap between the neck and the constriction.

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 constricted portion and the constricted portion, thereby adjusting the exhaust of the compressed air in the air pressure chamber amount, and then adjust the positioning strength of the first blade.

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

Further, an inner thread is formed on the inner side wall of the communication hole of the plug, and an outer thread is formed on the outer side wall of the adjustment seat, and the adjustment seat is threadedly connected with the communication hole of the plug.

Further, a connecting screw is formed on the upper part of the damping positioning rod, a connecting screw hole is correspondingly formed in the screw sleeve, 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 seal ring.

Further, opposite first axial through holes and second axial through holes are arranged on the side wall of the air pressure chamber of the plug, and sliding rods are radially arranged on the damping positioning rod, and both ends of the sliding rod respectively limited in the first axial through hole and the second axial through hole.

Further, an annular clamping 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 clamping 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 a circumscribed flat edge, and the insertion hole of the swivel ring is arranged with the The inscribed flat edge corresponding to the outer incised flat edge, the swivel ring is fixed in the first shaft sleeve, the fixing screw is screwed through the first shaft sleeve and the swivel ring in turn, and the transmission is locked. 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 bushing includes an upper bushing and a lower bushing, a second bearing is arranged between the upper bushing and the upper end of the second bushing, and the second bearing is 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.

In order to achieve the above object, an embodiment of the second aspect of the present invention provides a hinge structure, which includes a first blade, and the first blade is provided with a first bushing;

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

a connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole that communicates 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, the side wall of the air pressure chamber forms a third through hole that communicates with the second through hole, and the plug is also formed with a communication hole communicated with the air pressure chamber, an exhaust hole is formed in the plug, and 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 clearance communicates with the air pressure chamber and the exhaust hole;

a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part;

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

A damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, and the damping positioning rod is connected with 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 together with the damping positioning rod to move close to the air pressure chamber of the plug, and when the damping positioning rod does not slide through the third through hole, the air pressure chamber The air 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 adjustment seat and the communication hole. Slight positioning force; when the damping positioning rod slides through the third through hole, the damping positioning rod blocks the third through hole, and the air in the air pressure chamber can only be discharged through the gap between the adjustment seat and the communication hole. The positioning rod is close to the air chamber to displace the atmosphere in the compressed air chamber, The compressed atmosphere produces pressure on the damping positioning rod, so that the first blade has a positioning function and realizes 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, while the damping positioning rod and the The side wall of the air pressure chamber has the function of friction damping, so that the first blade realizes buffer reset and self-closing.

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

Further, a constriction portion is formed on the upper portion of the communication hole of the plug, a constriction portion is formed on the upper portion of the adjustment seat, and a third sealing ring sealingly matched with the constriction portion is sleeved on the constriction portion. The upper part of the third sealing ring is set on the constriction part so that the area of the cross section becomes gradually smaller from bottom to top; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat can be moved to adjust the constriction. The size of the gap between the neck and the constriction.

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 constricted portion and the constricted portion, thereby adjusting the exhaust of the compressed air in the air pressure chamber amount, and then adjust the positioning strength of the first blade.

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

Further, an inner thread is formed on the inner side wall of the communication hole of the plug, and an outer thread is formed on the outer side wall of the adjustment seat, and the adjustment seat is threadedly connected with the communication hole of the plug.

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

a second blade, the second blade is provided with a second bushing;

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 pressure chamber is formed in the plug, a communication hole is also formed in the plug that communicates with the pressure chamber, 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 clearance communicates with the air pressure chamber and the exhaust hole;

a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part;

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

A damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, and the damping positioning rod is connected with the connecting sleeve It is sealingly matched with the side wall of the air pressure chamber.

According to a hinge structure of the 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 air in the air pressure chamber can only pass through the gap between the adjustment seat and the communication hole. At this time, the damping positioning rod is close to the air pressure chamber to displace the atmosphere in the compressed air pressure chamber, and the compressed atmosphere produces 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 above embodiments of the present invention may also have the following additional technical features:

Further, a constriction portion is formed on the upper portion of the communication hole of the plug, a constriction portion is formed on the upper portion of the adjustment seat, and a third sealing ring sealingly matched with the constriction portion is sleeved on the constriction portion. The upper part of the third sealing ring is set as the surface of the cross section from bottom to top The product is gradually reduced; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat can be moved to adjust the size of the gap between the constricted portion and the constricted 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 constricted portion and the constricted portion, thereby adjusting the exhaust of the compressed air in the air pressure chamber amount, and then adjust the positioning strength of the first blade.

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

Further, an inner thread is formed on the inner side wall of the communication hole of the plug, and an outer thread is formed on the outer side wall of the adjustment seat, and the adjustment seat is threadedly connected with the communication hole of the plug.

In order to achieve the above object, an embodiment of the fourth aspect of the present invention provides a hinge structure, which includes a first blade, and the first blade is provided with a first bushing;

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

a connecting sleeve, the connecting sleeve is sleeved in the first shaft sleeve and the second shaft sleeve, and a second through hole that communicates 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 side wall of the air pressure chamber forms a third through hole that communicates with the second through hole;

a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part;

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

a damping positioning rod, the damping positioning rod is connected with the lower part of the screw sleeve, and the damping positioning rod is The locating rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, and the damping locating rod is sealingly matched 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 close 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 bushing are discharged. At this time, the damping positioning rod is close to the air pressure chamber to displace the atmosphere in the compressed air pressure chamber, and the compressed atmosphere produces pressure on the damping positioning rod, so that the damping positioning rod is compressed. The first blade has a positioning function to achieve full positioning.

【00150】

10: Swivel

101: Jack

102: Inscribed 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: Notch

01: The first blade

11: The first bushing

111: Upper bushing

112: Lower bushing

02: Second blade

21: Second bushing

211: first through hole

03: Connection sleeve

31: Second through hole

32: First flange

33: Second flange

34: Third flange

04: Plug

41: Ring card slot

42: Air pressure chamber

43: Third through hole

44: Connecting holes

441: Neck part

45: exhaust hole

46: The first axial through hole

47: Second axial through hole

05: Adjust the seat

51: Neck neck

52: The third sealing ring

53: External thread

06: The first bearing

61: The first annular groove

62: Second annular groove

63: inner ring through hole

07: Transmission rod

71: Screw part

72: Outer cut flat edge

08: Screw sleeve

81: screw hole

82: Connecting screw holes

83: The first annular installation groove

09: Damping positioning rod

91: connecting screw

92: Second annular mounting groove

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

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

Fig. 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.

FIG. 5 is a schematic structural diagram of an adjustment seat according to an embodiment of the present invention.

Fig. 6a is a schematic structural diagram 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 the first embodiment of the present invention.

Fig. 7a is a schematic structural diagram of a screw sleeve according to an embodiment of the present invention.

Fig. 7b is a schematic structural diagram of another angle of a screw 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 diagram of a first bearing according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a swivel ring according to an embodiment of the present invention.

FIG. 11 is a schematic structural diagram of Embodiment 2 of the present invention.

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

Fig. 13 is a schematic structural diagram according to Embodiment 3 of the present invention.

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

FIG. 15 is a schematic structural diagram according to Embodiment 4 of the present invention.

Fig. 16a is a schematic structural diagram of the first blade according to the fourth embodiment of the present invention.

Fig. 16b is a schematic structural diagram of the second blade according to the fourth embodiment of the present invention.

Fig. 17 is a schematic structural diagram according to Embodiment 5 of the present invention.

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

Fig. 19 is a schematic view of the structure of the sixth plug according to the embodiment of the present invention.

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used with It is used to explain the present invention and should not be construed as a limitation of the present invention.

As shown in FIGS. 1 to 10 , a hinge structure according to the first embodiment of the present invention includes a first blade 01 , a second blade 02 , a connecting sleeve 03 , a plug 04 , an adjustment 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 bushing 11 . The second blade 02 is provided with a second bushing 21 , a first through hole 211 is formed on the second bushing 21 , and the second bushing 21 and the first bushing 11 are vertically aligned and coaxially arranged. 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 , and the structure of the first blade 01 and the second blade 02 is generally referred to as a mother-in-law type.

As shown in FIG. 1 , FIG. 3 a and FIG. 3 b , the connecting sleeve 03 is sleeved in the first shaft sleeve 11 and the second shaft sleeve 12 , and a second through hole 31 which communicates with the first through hole 211 is formed on the connecting sleeve 03 .

As shown in FIG. 1 , FIG. 4 a and FIG. 4 b , 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 , to achieve the two sockets. A pressure chamber 42 is formed in the plug 04 , a third through hole 43 communicating with the second through hole 31 is formed on the side wall of the pressure chamber 42 , and a communication hole 44 communicating with the pressure chamber 42 is also formed in the plug 04 . An exhaust hole 45 is formed in the plug 04, and the exhaust hole 45 communicates with the communication hole 44 and the atmosphere.

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

[00100] As shown in FIG. 1 and FIG. 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 formed on the inner side wall of the connecting sleeve 03 , respectively, The second flange 33 of the connection sleeve 03 Embedded in the first annular groove 61 of the first bearing 06 , 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 FIG. 1, FIG. 8 and FIG. 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 bushing 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 ring 10 , the upper part of the transmission rod 07 is provided with a circumscribed flat edge 72 , and the insertion hole 101 of the swivel ring 10 is arranged on the upper part of the transmission rod 07 . The inner incised flat edge 102 corresponding to the outer incised flat edge 72 is arranged in the middle, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel ring 10 is provided with knurls 103, and the fixing screw 20 is screwed through the first The shaft sleeve 11 and the swivel 10 are locked, and the transmission rod 07 is locked.

[00102] As shown in FIG. 1 , FIG. 7 a and FIG. 7 b , the upper part of the screw sleeve 08 is provided with a screw thread hole 81 which is connected with 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 , and a connecting screw hole 82 is correspondingly formed in 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, a first axial through hole 46 and a second axial through hole 47 are set on the side wall of the air pressure chamber 42 of the plug 04 , and a sliding rod 30 is radially provided on the damping positioning rod 09 . The ends are respectively limited 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 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 screw sleeve 08 , the first annular installation groove 83 may be provided in multiples, 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 grooves 92 and the second annular installation grooves 92 may be provided in multiple numbers, and the second sealing ring 50 is installed in the second annular installation grooves 92 .

[00104] When turning the door to drive 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 and the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04, and the damping positioning rod 09 does not move. When sliding through the third through hole 43, the air in the air pressure chamber 42 is exhausted 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 adjustment seat 05 and the communication hole 44, At this time, the atmosphere of the air pressure chamber 42 exerts 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 air in the air pressure chamber 42 can only be discharged through the gap between the adjustment seat 05 and the communication hole 44. At this time, the damping positioning rod 09 is close to the air pressure chamber 42 to displace the air in the compressed air pressure chamber 42, and the compressed air generates the damping positioning rod 09. pressure, so that the first blade 01 has a positioning function to achieve positioning in the second half.

[00105] As shown in FIG. 1, FIG. 4b and FIG. 5, the upper part of the communication hole 44 of the plug 04 forms a constriction part 441, and the upper part of the adjustment seat 05 forms a constriction part 51 correspondingly, and the constriction part 51 is sleeved and constricted The third sealing ring 52 of the part 441 is sealed and matched, and the part above the third sealing ring 52 in the constricted part 51 is set so that the area of the cross section gradually decreases from bottom to top. In some examples, the part above the constriction portion 51 where the third sealing ring 52 is arranged is arranged as a truncated cone. The adjusting seat 05 can be axially moved and installed in the plug 04 , and the adjusting seat 05 can be moved to adjust the size of the gap between the constricted portion 51 and the constricted portion 441 . In some examples, an inner thread 442 is formed on the inner side wall of the communication hole 44 of the plug 04, and an outer thread 53 is formed on the outer side wall of the adjustment seat 05. The adjustment seat 05 is threadedly connected to the communication hole 44 of the plug 04, and the adjustment seat is rotated. 05 can drive its axial displacement, so that the constricted portion 51 of the adjusting seat 05 fits with the constricted portion 441 of the communication hole 44 in different positions, so that the size of the gap can be adjusted, and even the third sealing ring 52 can block the communication hole 44. , adjust the positioning strength.

[00106] Rotating the adjustment seat 05 can drive its axial displacement, so that the constricted portion of the adjustment seat 05 Different positions of 51 and the constriction portion 441 of the communication hole 44 are in clearance fit, and the adjustment seat 05 is moved to adjust the size of the gap between the constriction portion 51 and the constriction portion 441, thereby adjusting the exhaust volume of the compressed air in the air pressure chamber 42, and further Adjust the positioning strength of the first blade 01.

[00107] As shown in FIGS. 1 and 2 , in some examples, the first bushing 11 includes an upper bushing 111 and a lower bushing 112 . A second bearing 60 is arranged 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 arranged 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 rotation of the first blade 01 relative to the second blade 02 is relatively smooth.

[00108] As shown in FIG. 11 and FIG. 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 adjustment 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 bushing 11 . The second blade 02 is provided with a second bushing 21 , a first through hole 211 is formed on the second bushing 21 , and the second bushing 21 and the first bushing 11 are vertically aligned and coaxially arranged. In some examples, the first bushing 11 is an integral part, the first vane 01 and the second vane 02 are the same sheet shape, and the structure of the first vane 01 and the second vane 02 is generally referred to as an H-shape.

[00109] The connecting sleeve 03 is sleeved in the first shaft sleeve 11 and the second shaft sleeve 12 , and a second through hole 31 that communicates 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 , to achieve the two sockets. A pressure chamber 42 is formed in the plug 04 , a third through hole 43 communicating with the second through hole 31 is formed on the side wall of the pressure chamber 42 , and a communication hole 44 communicating with the pressure chamber 42 is also formed in the plug 04 . An exhaust hole 45 is formed in the plug 04, and the exhaust hole 45 communicates with the communication hole 44 and atmosphere.

[00111] The adjustment seat 05 is installed in the communication hole 44, and the adjustment seat 05 is clearance fit with the side wall of the communication hole 44, the gap communicates 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 formed on the inner side wall of the connecting sleeve 03 , respectively, 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 bushing 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 ring 10 , the upper part of the transmission rod 07 is provided with a circumscribed flat edge 72 , and the insertion hole 101 of the swivel ring 10 is arranged on the upper part of the transmission rod 07 . The inner incised flat edge 102 corresponding to the outer incised flat edge 72 is arranged in the middle, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel ring 10 is provided with knurls 103, and the fixing screw 20 is screwed through the first The shaft sleeve 11 and the swivel 10 are locked, and the transmission rod 07 is locked.

[00114] The upper portion of the screw sleeve 08 is provided with a screw thread hole 81 that is connected to 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 , and a connecting screw hole 82 is correspondingly formed in 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, a first axial through hole 46 and a second axial through hole 47 are set on the side wall of the air pressure chamber 42 of the plug 04 , and a sliding rod 30 is radially provided on the damping positioning rod 09 . The ends are respectively limited 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 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 screw sleeve 08 , the first annular installation groove 83 may be provided in multiples, 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 multiple numbers, 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 abuts on the threaded sleeve 08, and the other end of the spring 80 abuts on the plug 04.

[00117] When turning the door to drive 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 and the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04, and the damping positioning rod 09 does not move. When sliding through the third through hole 43, the air in the air pressure chamber 42 is exhausted 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 adjustment seat 05 and the communication hole 44, At this time, the atmosphere of the air pressure chamber 42 exerts 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 air in the air pressure chamber 42 can only be discharged through the gap between the adjustment seat 05 and the communication hole 44. At this time, the damping positioning rod 09 is close to the air pressure chamber 42 to displace the air in the compressed air pressure chamber 42, and the compressed air generates the damping positioning rod 09. pressure, so that the first blade 01 has a positioning function to achieve positioning in the second half. At the same time, the threaded sleeve 08 drives the spring 80 to compress and store energy, and the stored energy of the spring 80 drives the threaded sleeve 08 to move in the opposite direction, while 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 and reset. close.

[00118] A constriction portion 441 is formed on the upper part of the communication hole 44 of the plug 04, and a constriction portion 51 is formed on the upper portion of the adjustment seat 05. The constriction portion 51 is sleeved with a third sealing ring 52 that is sealingly matched with the constriction portion 441, and the constriction portion 51 is sleeved. The upper part of the neck 51 where the third sealing ring 52 is arranged is arranged so that the area of the cross-section gradually decreases from bottom to top. In some examples, the part above the constriction portion 51 where the third sealing ring 52 is arranged is arranged as a truncated cone. The adjusting seat 05 can be axially moved and installed in the plug 04 , and the adjusting seat 05 can be moved to adjust the size of the gap between the constricted portion 51 and the constricted portion 441 . In some examples, an inner thread 442 is formed on the inner side wall of the communication hole 44 of the plug 04, and an outer thread 53 is formed on the outer side wall of the adjustment seat 05. The adjustment seat 05 is threadedly connected to the communication hole 44 of the plug 04, and the adjustment seat is rotated. 05 can drive its axial displacement, so that the constricted portion 51 of the adjusting seat 05 fits with the constricted portion 441 of the communication hole 44 in different positions, so that the size of the gap can be adjusted, and even the third sealing ring 52 can block the communication hole 44. , adjust the positioning strength.

[00119] Rotating the adjusting seat 05 can drive its axial displacement, so that the constricted portion 51 of the adjusting seat 05 fits with the constricted portion 441 of the communication hole 44 at different positions, and moving the adjusting seat 05 adjusts the constricted portion 51 and the constricted portion. The size of the gap between the 441, so as to adjust the exhaust volume of the compressed air in the air pressure chamber 42, and then adjust the positioning strength of the first blade 01.

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

[00121] As shown in FIG. 13 and FIG. 14 , a hinge structure according to Embodiment 3 of the present invention is different from Embodiment 2 in that: the first bushing 11 includes an upper bushing 111 and a lower bushing 112, and the upper bushing 111 and The lower bushings 112 are respectively connected to the first vanes 01 through connecting plates, and there is an angular distribution between the connecting plates and the first vanes 01 , and the second bushings 21 are formed on the side surfaces of the second vanes 02 . The structure of the first blade 01 and the second blade 02 is generally referred to as a butterfly shape.

[00122] As shown in FIG. 15, FIG. 16a and FIG. 16b, a hinge structure of the fourth embodiment of the present invention is different from the second embodiment in that the first bushing 11 is axially arranged on one side of the first blade 01, and the first The blade 01 is an integral part and is arranged in an elongated shape, and the second bushing 21 is formed on the side surface of the second blade 02 superior. The structure of the first blade 01 and the second blade 02 is generally referred to as a flag shape.

[00123] 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 adjustment 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 bushing 11 . The second blade 02 is provided with a second bushing 21 , and the second bushing 21 and the first bushing 11 are vertically aligned and coaxially arranged. 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 , and the structure of the first blade 01 and the second blade 02 is generally referred to as a mother-in-law type.

[00124] The connecting sleeve 03 is sleeved within 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 , to achieve the two sockets. An air pressure chamber 42 is formed in the plug 04 , and a communication hole 44 communicating with the air pressure chamber 42 is also formed in the plug 04 . An exhaust hole 45 is formed in the plug 04, and the exhaust hole 45 communicates with the communication hole 44 and the atmosphere.

[00126] The adjustment seat 05 is installed in the communication hole 44, the adjustment seat 05 is matched with the side wall of the communication hole 44, and the gap communicates 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.

[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 formed on the inner side wall of the connecting sleeve 03 , respectively, 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 rotated and 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 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 ring 10 , the upper part of the transmission rod 07 is provided with a circumscribed flat edge 72 , and the insertion hole 101 of the swivel ring 10 is arranged on the upper part of the transmission rod 07 . The inner incised flat edge 102 corresponding to the outer incised flat edge 72 is arranged in the middle, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel ring 10 is provided with knurls 103, and the fixing screw 20 is screwed through the first The shaft sleeve 11 and the swivel 10 are locked, and the transmission rod 07 is locked.

[00129] The upper portion of the screw sleeve 08 is provided with a screw thread hole 81 that is connected to 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 , and a connecting screw hole 82 is correspondingly formed in 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, a first axial through hole 46 and a second axial through hole 47 are set on the side wall of the air pressure chamber 42 of the plug 04 , and a sliding rod 30 is radially provided on the damping positioning rod 09 . The ends are respectively limited 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 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 screw sleeve 08 , the first annular installation groove 83 may be provided in multiples, 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 multiple numbers, and the second sealing ring 50 is installed in the second annular installation groove 92 .

[00131] When turning the door to drive 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 together with the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04. The air can only be discharged through the gap between the adjustment seat 05 and the communication hole 44. At this time, the damping positioning rod 09 is close to the air pressure chamber 42 to displace the atmosphere in the compressed air pressure chamber 42, and the compressed air can affect 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 communication hole 44 of the plug 04 forms a constriction part 441, and the upper part of the adjustment seat 05 correspondingly forms a constriction part 51. The upper part of the neck 51 where the third sealing ring 52 is arranged is arranged so that the area of the cross-section gradually decreases from bottom to top. In some examples, the part above the constriction portion 51 where the third sealing ring 52 is arranged is arranged as a truncated cone. The adjusting seat 05 can be axially moved and installed in the plug 04 , and the adjusting seat 05 can be moved to adjust the size of the gap between the constricted portion 51 and the constricted portion 441 . In some examples, an inner thread 442 is formed on the inner side wall of the communication hole 44 of the plug 04, and an outer thread 53 is formed on the outer side wall of the adjustment seat 05. The adjustment seat 05 is threadedly connected to the communication hole 44 of the plug 04, and the adjustment seat is rotated. 05 can drive its axial displacement, so that the constricted portion 51 of the adjusting seat 05 fits with the constricted portion 441 of the communication hole 44 in different positions, so that the size of the gap can be adjusted, and even the third sealing ring 52 can block the communication hole 44. , adjust the positioning strength.

[00133] Rotating the adjusting seat 05 can drive its axial displacement, so that the constricted portion 51 of the adjusting seat 05 fits with the constricted portion 441 of the communication hole 44 at different positions, and moving the adjusting seat 05 adjusts the constricted portion 51 and the constricted portion. The size of the gap between the 441, so as to adjust the exhaust volume of the compressed air in the air pressure chamber 42, and then adjust the positioning strength of the first blade 01.

[00134] In some examples, the first bushing 11 includes an upper bushing 111 and a lower bushing 112. A second bearing 60 is arranged 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 arranged 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 rotation of the first blade 01 relative to the second blade 02 is relatively smooth.

[00135] As shown in FIG. 18 and FIG. 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, screw Sleeve 08 and damping positioning rod 09. The first blade 01 is provided with a first bushing 11 . The second blade 02 is provided with a second bushing 21 , a first through hole 211 is formed on the second bushing 21 , and the second bushing 21 and the first bushing 11 are vertically aligned and coaxially arranged. 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 , and the structure of the first blade 01 and the second blade 02 is generally referred to as a mother-in-law type.

[00136] The connecting sleeve 03 is sleeved in the first sleeve 11 and the second sleeve 12, and a second through hole 31 that communicates 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 , to achieve the two sockets. An air pressure chamber 42 is formed in the plug 04 , and a side wall of the air pressure chamber 42 forms 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 formed on the inner side wall of the connecting sleeve 03 , respectively, 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 bushing 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 ring 10 , the upper part of the transmission rod 07 is provided with a circumscribed flat edge 72 , and the insertion hole 101 of the swivel ring 10 is arranged on the upper part of the transmission rod 07 . The inner incised flat edge 102 corresponding to the outer incised flat edge 72 is arranged in the middle, the swivel 10 is fixed in the first sleeve 11, the outer side wall of the swivel ring 10 is provided with knurls 103, and the fixing screw 20 is screwed through the first The shaft sleeve 11 and the swivel 10 are locked, and the transmission rod 07 is locked.

[00140] The upper portion of the screw sleeve 08 is provided with a screw thread hole 81 that is 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 , and a connecting screw hole 82 is correspondingly formed in 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, a first axial through hole 46 and a second axial through hole 47 are set on the side wall of the air pressure chamber 42 of the plug 04 , and a sliding rod 30 is radially provided on the damping positioning rod 09 . The ends are respectively limited 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 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 screw sleeve 08 , the first annular installation groove 83 may be provided in multiples, 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 multiple numbers, and the second sealing ring 50 is installed in the second annular installation groove 92 .

[00142] When turning the door to drive 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 together with the damping positioning rod 09 to move close to the air pressure chamber 42 of the plug 04. The air 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 this time, the damping positioning rod 09 is displaced and compressed close to the air pressure 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 and realizes full positioning.

[00143] In some examples, the first bushing 11 includes an upper bushing 111 and a lower bushing 112. A second bearing 60 is arranged 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 arranged 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 Rotation is smoother.

[00144] In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front" ", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operation, and therefore should not be construed as a limitation of the present invention.

[00145] Furthermore, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[00146] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a Detachable connection or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium, internal communication between two elements or interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[00147] In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a 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 is in contact through another feature between them. and Also, the first feature is "above", "over" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature level is higher than the second feature. The first feature being "below", "below" and "below" the second feature includes that the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

[00148] In the description of this specification, reference to a description of the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., is meant to be described in conjunction with the embodiment or example. The specific features, structures, materials or characteristics of the present invention are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms should not be construed as necessarily referring 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, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[00149] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications, substitutions and variations can be made to the above-described 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: Notch

02: Second blade

21: Second bushing

211: first through hole

03: Connection sleeve

31: Second through hole

04: Plug

42: Air pressure chamber

43: Third through hole

441: Neck part

05: Adjust the seat

51: Neck neck

52: The 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 includes: a first blade, the first blade is provided with a first bushing; a second blade, the second blade is provided with a second bushing, and a first through hole is formed on the second bushing; 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, which is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, a third through hole that communicates with the second through hole is formed on the side wall of the pneumatic chamber, and a communication with the pneumatic chamber is also formed in the plug a hole, an exhaust hole is formed in the plug, and 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 clearance communicates with the air pressure chamber and the exhaust hole; a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part; a screw sleeve, the upper part of the screw sleeve is provided with a screw thread hole connected with the screw part; The damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Seal fit. The hinge structure of claim 1, wherein a constriction portion is formed on the upper portion of the communication hole of the plug, a constriction portion is formed on the upper portion of the adjusting seat, and the constriction portion is sleeved on the constriction portion in sealing engagement with the constriction portion. Three sealing rings, the constricted portion is provided with the upper part of the third sealing ring, and the area of the cross section is gradually reduced from bottom to top; the adjustment seat can be axially moved and installed in the plug to move the adjustment seat Adjust the size of the gap between the constricted portion and the constricted portion. The hinge structure according to claim 2, wherein the part above the third sealing ring on the constricted portion is set as a truncated cone; an inner thread is formed on the inner side wall of the communication hole of the plug, and the outer side wall of the adjusting seat is formed on the inner thread. An external thread is formed, and the adjustment seat is threadedly connected with the communication hole of the plug. The hinge structure according to claim 1, wherein a connecting screw is formed on the upper part of the damping positioning rod, a connecting screw hole is correspondingly formed in the screw sleeve, 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 A first axial through hole and a second axial through hole are arranged on the side wall of the air pressure chamber of the plug, and a sliding rod is radially arranged on the damping positioning rod, and the two ends of the sliding rod are respectively limited to the first shaft. into the through hole and the second axial through hole; an annular snap 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 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 a flat edge, and the insertion hole of the swivel ring is arranged with the outer ring. The inscribed flat edge corresponding to the flat cut edge, the swivel ring is fixed in the first shaft sleeve, the fixing screw is screwed through the first shaft sleeve and the swivel ring in turn, and locks the transmission rod; 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 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 first bearing, 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 bushing, the second bearing is rotatably connected to the connecting sleeve, and a third bearing is arranged between the lower bushing and the lower end of the second bushing, and the third bearing is rotatable Socket over this plug. A hinge structure, characterized in that it includes: a first blade, the first blade is provided with a first bushing; a second blade, the second blade is provided with a second bushing, and a first through hole is formed on the second bushing; 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, which is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, a third through hole that communicates with the second through hole is formed on the side wall of the pneumatic chamber, and a communication with the pneumatic chamber is also formed in the plug a hole, an exhaust hole is formed in the plug, and 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 clearance communicates with the air pressure chamber and the exhaust hole; a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part; a screw sleeve, the upper part of the screw sleeve is provided with a screw thread hole connected with the screw part; The damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber sealing fit; A spring is sleeved on the damping positioning rod, one end of the spring is abutted on the screw sleeve, and the other end of the spring is abutted on the plug. The hinge structure as claimed in claim 5, wherein a constriction portion is formed on the upper portion of the communication hole of the plug, a constriction portion is formed on the upper portion of the adjustment seat, and the constriction portion is sleeved on the constriction portion in sealing engagement with the constriction portion. Three sealing rings, the constricted portion is provided with the upper part of the third sealing ring, and the cross section is from bottom to top The area is gradually reduced; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat can be moved to adjust the size of the gap between the constricted portion and the constricted portion. The hinge structure according to claim 6, wherein the part above the third sealing ring on the constricted portion is set as a truncated cone; an inner thread is formed on the inner side wall of the communication hole of the plug, and the outer side wall of the adjusting seat is formed with an inner thread. An external thread is formed, and the adjustment seat is threadedly connected with the communication hole of the plug. A hinge structure, characterized in that it includes: a first blade, the first blade is provided with a first bushing; a second blade, the second blade is provided with a second bushing; 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 pressure chamber is formed in the plug, a communication hole is also formed in the plug, which is communicated with the pressure chamber, an exhaust hole is formed in the plug, and the exhaust hole communicates with the pressure chamber. Connecting pores and 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 clearance communicates with the air pressure chamber and the exhaust hole; a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part; a screw sleeve, the upper part of the screw sleeve is provided with a screw thread hole connected with the screw part; The damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Seal fit. The hinge structure according to claim 8, wherein the upper part of the communication hole of the plug forms a constricted portion, the The upper part of the adjustment seat is correspondingly formed with a constriction part, and the constriction part is sleeved with a third sealing ring which is sealingly matched with the constriction part; gradually become smaller; the adjusting seat can be axially moved and installed in the plug, and the adjusting seat can be moved to adjust the size of the gap between the constricted portion and the constricted portion. The hinge structure according to claim 9, wherein the part above the third sealing ring on the constricted portion is set as a truncated cone; an inner thread is formed on the inner side wall of the communicating hole of the plug, and the outer side wall of the adjusting seat is formed with an inner thread. An external thread is formed thereon, and the adjustment seat is threadedly connected with the communication hole of the plug. A hinge structure, characterized in that it includes: a first blade, the first blade is provided with a first bushing; a second blade, the second blade is provided with a second bushing, and a first through hole is formed on the second bushing; 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 connection sleeve, a pneumatic chamber is formed in the plug, and a side wall of the pneumatic chamber forms a third through hole that communicates with the second through hole; a first bearing, which 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 bushing, and the lower part of the transmission rod is provided with a screw part; a screw sleeve, the upper part of the screw sleeve is provided with a screw thread hole connected with the screw part; The damping positioning rod is connected with the lower part of the screw sleeve, the damping positioning rod is axially slidably sleeved in the connecting sleeve and the air pressure chamber of the plug, the damping positioning rod is connected with the connecting sleeve and the side wall of the air pressure chamber Seal fit.

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