TW202124835A - Hinge structure - Google Patents

Abstract

The utility model discloses a hinge structure. The first blade drives the transmission rod to rotate; the transmission rod drives the threaded sleeve and the damping positioning rod to move close to the air pressure chamber of the plug; when the damping positioning rod does not slide through the third through hole, the atmosphere in the air pressure chamber is exhausted through the third through hole, the second through hole and the first through hole and is exhausted through a gap between the adjusting seat and the communicating hole, and at the moment, the atmosphere in the air pressure chamber generates small pressure on the damping positioning rod and generates slight positioning force; the damping positioning rod slides through the third through hole; the damping positioning rod blocks the third through hole, the atmosphere in the air pressure chamber can only be exhausted through the gap between the adjusting base and the communicating hole, at the moment, the damping 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, and therefore the first blade has the positioning function. The blade positioning device has a blade positioning function, and the blade positioning strength 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 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 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. The upper hinge can rise through the cooperation of 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, the at least double helix structure includes at least two parallel Helix.

The above-mentioned lifting hinge device does not have the positioning function, and cannot adjust the positioning force. Its applicability is limited. Many application scenarios require the hinge to have the 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 that has a blade positioning function, and the blade positioning force can be adjusted.

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

In order 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;

A plug, the plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, a third through hole communicating with the second through hole is formed on the side wall of the pneumatic chamber, and the plug is also formed with Connecting holes connected to the air pressure chamber;

The adjusting seat, the adjusting seat is installed in the communicating hole, the adjusting seat and the The side walls of the communication hole are in clearance fit, and an exhaust hole is formed in the adjustment seat, and the exhaust hole communicates the communication hole and the atmosphere;

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. 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. The positioning rod moves close 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.

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 at the necking portion The product 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.

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.

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 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 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 In the receptacle of the swivel, the upper part of the transmission rod is provided with an outer cut flat edge, the receptacle of the swivel is provided with an inner cut flat edge corresponding to the outer cut flat edge, and the swivel is fixed on the In the first sleeve, 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 above 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;

A plug, the plug is sleeved in the connecting sleeve, a pneumatic chamber is formed in the plug, a third through hole communicating with the second through hole is formed on the side wall of the pneumatic chamber, and the plug is also formed with Connecting holes connected to the air pressure chamber;

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, an exhaust hole is formed in the adjustment seat, and the exhaust hole communicates with the The communicating holes and the atmosphere;

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 cooperate 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. 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. The positioning rod moves close to the pressure chamber to compress the atmosphere in the pressure chamber, and the compressed atmosphere generates pressure on the damping positioning rod, so that the first blade has a positioning function; 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 reverse The damping positioning rod and the side wall of the air pressure chamber have 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 from bottom to top becomes gradually smaller; 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 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.

【00103】

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

1: the first blade

11: The first sleeve

111: Upper bushing

112: Lower bushing

2: The second blade

21: The second sleeve

211: first through hole

3: Connecting sleeve

31: second through hole

32: first flange

33: second flange

34: third flange

4: plug

41: Annular card slot

42: Air pressure chamber

43: third through hole

44: Connecting hole

441: Necking

45: The first axial through hole

46: second axial through hole

5: Adjust the seat

51: Vent

52: shrink neck

53: The third sealing ring

54: External thread

6: The first bearing

61: The first annular groove

62: second annular groove

63: Inner ring through hole

7: Transmission rod

71: Screw part

72: Outside cut flat edge

8: Screw sleeve

81: Thread hole

82: Connection screw hole

83: The first annular mounting groove

9: 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 the first 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 5a: is a schematic diagram of the external structure of an adjusting seat according to an embodiment of the present invention.

Figure 5b is a schematic diagram of the internal structure of an adjustment seat according to an embodiment of the present invention.

Figure 6a is a schematic diagram of the structure 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 view of the structure of a threaded sleeve according to an embodiment of the present invention.

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

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

Figure 12: is a schematic diagram of the structure according to the third embodiment of the present invention.

Figure 13: 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 14: is a schematic diagram of the structure according to the fourth embodiment of the present invention.

Figure 15: is a schematic diagram of the cooperation between the first blade and the second blade according to the fourth embodiment of the present invention.

Figure 16: is a schematic diagram of the structure of the fifth embodiment of the present invention.

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

Figure 17b is a schematic diagram of the structure of the second blade according to the fifth 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 explain the present invention, but should not be construed as limiting 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 1, a second blade 2, a connecting sleeve 3, a plug 4, an adjusting seat 5, a first bearing 6, and a transmission rod 7. , Screw sleeve 8 and damping positioning rod 9. The first blade 1 is provided with a first sleeve 11. The second blade 2 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 1, and the shape of the notch 12 is adapted to the second blade 2. The structure of the first blade 1 and the second blade 2 is generally called a picture-frame shape.

As shown in FIGS. 1, 3 a and 3 b, the connecting sleeve 3 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 3.

As shown in Figure 1, Figure 4a and Figure 4b, the plug 4 is sleeved in the connecting sleeve 3. In some examples, an annular groove 41 is formed on the outer side wall of the plug 4, a first flange 32 is formed on the inner side wall of the connecting sleeve 3, and the first flange 32 of the connecting sleeve 3 is inserted into the annular groove 41 of the plug 4 In, realize the two sockets. A pneumatic chamber 42 is formed in the plug 4, a third through hole 43 communicating with the second through hole 31 is formed on the side wall of the pneumatic chamber 42, and a communicating hole 44 communicating with the pneumatic chamber 42 is also formed in the plug 4.

As shown in Figure 1, Figure 5a and Figure 5b, the adjusting seat 5 is installed in the communicating hole 44, and the adjusting seat 5 is in clearance fit with the side wall of the communicating hole 44. The adjusting seat 5 is formed with an exhaust hole 51, and the exhaust hole 51 communicates with the The hole 44 communicates with the atmosphere, and the air in the air pressure chamber 42 can be discharged from the outside atmosphere through the exhaust hole 51 after passing through the gap.

As shown in FIGS. 1 and 9, the first bearing 6 is sleeved in the connecting sleeve 3. In some examples In the first bearing 6, a first annular groove 61 and a second annular groove 62 are formed on the outer side wall of the first bearing 6, and a second flange 33 and a third flange 34 are correspondingly formed on the inner side wall of the connecting sleeve 3. The second flange 33 is embedded in the first annular groove 61 of the first bearing 6, and the third flange 34 of the connecting sleeve 3 is embedded in the second annular groove 62 of the first bearing 6.

As shown in FIGS. 1, 8 and 10, the transmission rod 7 is rotatably sleeved in the first bearing 6, the upper part of the transmission rod 7 is fixedly connected with the first sleeve 11, and the lower part of the transmission rod 7 is provided with a screw part 71. In some examples, the upper part of the transmission rod 7 passes through the inner ring through hole 63 of the first bearing 6 and is inserted into the insertion hole 101 of the swivel 10, and the upper part of the transmission rod 7 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. The shaft sleeve 11 and the swivel ring 10, and the transmission rod 7 is locked.

As shown in FIGS. 1, 7a and 7b, the upper part of the threaded sleeve 8 is provided with a threaded hole 81 connected with the screw portion 71 of the transmission rod 7.

As shown in Figure 1, Figure 6a and Figure 6b, the damping positioning rod 9 is connected to the lower part of the screw sleeve 8. In some examples, a connecting screw 91 is formed on the upper part of the damping positioning rod 9, a connecting screw hole 82 is correspondingly formed in the screw sleeve 8, and the connecting screw 91 of the damping positioning rod 9 is threadedly connected with the connecting screw hole 82 of the screw sleeve 8. Of course, the screw sleeve 8 can be integrally and fixedly connected with the damping positioning rod 9. The damping positioning rod 9 is axially slidably sleeved in the connecting sleeve 3 and the air pressure chamber 42 of the plug 4. In some examples, the side wall of the air pressure chamber 42 of the plug 4 is provided with a first axial through hole 45 and a second axial through hole 46 opposite to each other, and the damping positioning rod 9 is radially provided with a sliding rod 30, two of the sliding rod 30 The ends are respectively limited in the first axial through hole 45 and the second axial through hole 46 to limit the axial sliding distance of the damping positioning rod 9 in the air pressure chamber 42 of the connecting sleeve 3 and the plug 4. The damping positioning rod 9 is in a sealing fit with the side wall of the air pressure chamber 42 of the connecting sleeve 3 and the plug 4. In some examples, a first annular mounting groove 83 is formed on the threaded sleeve 8. The first annular mounting groove 83 may be provided in multiple, and the first annular mounting groove 83 The first sealing ring 40 is installed in the installation groove 83. A second annular installation groove 92 is formed on the damping positioning rod 9, 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.

When the door is opened to drive the first blade 1 to rotate, when the first blade 1 drives the transmission rod 7 to rotate, the transmission rod 7 drives the screw sleeve 8 with the damping positioning rod 9 to move closer to the air pressure chamber 42 of the plug 4, and the damping positioning rod 9 does not slide over In 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 5 and the communicating hole 44, at this time , The atmosphere of the air pressure chamber 42 produces less pressure on the damping positioning rod 9 and produces a slight positioning force; when the damping positioning rod 9 slides through the third through hole 43, the damping positioning rod 9 blocks the third through hole 43, and the pressure chamber The atmosphere in 42 can only be discharged through the gap between the adjusting seat 5 and the communicating hole 44. At this time, the damping positioning rod 9 moves close to the pneumatic chamber 42 to compress the atmosphere in the pneumatic chamber 42, and the compressed atmosphere generates pressure on the damping positioning rod 9. Thus, the first blade 1 has a positioning function.

As shown in Figure 1, Figure 4b, Figure 5a and Figure 5b, the upper part of the communicating hole 44 of the plug 4 is formed with a necking part 441, and the upper part of the adjusting seat 5 is correspondingly formed with a necking part 52, and the necking part 52 is sleeved and contracted. The part 441 seals and fits the third sealing ring 53, and the constricted portion 52 is provided with the third sealing ring 53 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 52 provided with the third sealing ring 53 is provided as a truncated cone. The adjusting seat 5 can be axially moved and installed in the plug 4, and the moving adjusting seat 5 adjusts the size of the gap between the necked portion 52 and the necked portion 441. In some examples, an internal thread 442 is formed on the inner side wall of the communicating hole 44 of the plug 4, an external thread 54 is formed on the outer side wall of the adjusting seat 5, the adjusting seat 5 is threadedly connected with the communicating hole 44 of the plug 4, and the adjusting seat is rotated. 5 can drive its axial displacement, so that different positions of the constricted portion 52 of the adjusting seat 5 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 53 can block the communicating hole 44 , Adjust the positioning intensity.

Rotating the adjusting seat 5 can drive its axial displacement, so that the neck portion 52 of the adjusting seat 5 Different positions are in clearance fit with the constricted portion 441 of the communicating hole 44, and the adjustment seat 5 is moved to adjust the size of the gap between the constricted portion 52 and the constricted portion 441, so as to adjust the exhaust volume of the compressed atmosphere in the pneumatic chamber 42 and thereby adjust The positioning force of the first blade 1.

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 3, 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 4, so that the first blade 1 rotates relatively smoothly with respect to the second blade 2.

As shown in Figure 11, a hinge structure of the second embodiment of the present invention includes a first blade 1, a second blade 2, a connecting sleeve 3, a plug 4, an adjusting seat 5, a first bearing 6, a transmission rod 7, and a screw sleeve 8. Damping positioning rod 9 and spring 70. The first blade 1 is provided with a first sleeve 11. The second blade 2 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 1, and the shape of the notch 12 is adapted to the second blade 2.

The connecting sleeve 3 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 3.

The plug 4 is sleeved in the connecting sleeve 3. In some examples, an annular groove 41 is formed on the outer side wall of the plug 4, a first flange 32 is formed on the inner side wall of the connecting sleeve 3, and the first flange 32 of the connecting sleeve 3 is inserted into the annular groove 41 of the plug 4 In, realize the two sockets. A pneumatic chamber 42 is formed in the plug 4, a third through hole 43 communicating with the second through hole 31 is formed on the side wall of the pneumatic chamber 42, and a communicating hole 44 communicating with the pneumatic chamber 42 is also formed in the plug 4.

The adjusting seat 5 is installed in the communicating hole 44, and the gap between the adjusting seat 5 and the side wall of the communicating hole 44 is In cooperation, an exhaust hole 51 is formed in the adjusting seat 5, and the exhaust hole 51 connects the communication hole 44 with the atmosphere, and the air in the air pressure chamber 42 can be discharged to the outside atmosphere through the exhaust hole 51 after passing through the gap.

The first bearing 6 is sleeved in the connecting sleeve 3. 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 6, and a second flange 33 and a third flange 34 are correspondingly formed on the inner side wall of the connecting sleeve 3. The second flange 33 of the connecting sleeve 3 is inserted into the first annular groove 61 of the first bearing 6, and the third flange 34 of the connecting sleeve 3 is inserted into the second annular groove 62 of the first bearing 6.

The transmission rod 7 is rotatably sleeved in the first bearing 6, the upper part of the transmission rod 7 is fixedly connected with the first sleeve 11, and the lower part of the transmission rod 7 is provided with a screw part 71. In some examples, the upper part of the transmission rod 7 passes through the inner ring through hole 63 of the first bearing 6 and is inserted into the insertion hole 101 of the swivel 10, and the upper part of the transmission rod 7 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. The shaft sleeve 11 and the swivel ring 10, and the transmission rod 7 is locked.

The upper part of the threaded sleeve 8 is provided with a threaded hole 81 connected with the screw portion 71 of the transmission rod 7.

The damping positioning rod 9 is connected to the lower part of the screw sleeve 8. In some examples, a connecting screw 91 is formed on the upper part of the damping positioning rod 9, a connecting screw hole 82 is correspondingly formed in the screw sleeve 8, and the connecting screw 91 of the damping positioning rod 9 is threadedly connected with the connecting screw hole 82 of the screw sleeve 8. Of course, the screw sleeve 8 can be integrally and fixedly connected with the damping positioning rod 9. The damping positioning rod 9 is axially slidably sleeved in the connecting sleeve 3 and the air pressure chamber 42 of the plug 4. In some examples, the side wall of the air pressure chamber 42 of the plug 4 is provided with a first axial through hole 45 and a second axial through hole 46 opposite to each other, and the damping positioning rod 9 is radially provided with a sliding rod 30, two of the sliding rod 30 The ends are respectively limited in the first axial through hole 45 and the second axial through hole 46 to limit the axial sliding distance of the damping positioning rod 9 in the air pressure chamber 42 of the connecting sleeve 3 and the plug 4. The damping positioning rod 9 is in a sealing fit with the side wall of the air pressure chamber 42 of the connecting sleeve 3 and the plug 4. In some examples, a first annular mounting groove is formed on the threaded sleeve 8 83, the first annular mounting groove 83 may be provided in multiples, and the first sealing ring 40 is installed in the first annular mounting groove 83. A second annular installation groove 92 is formed on the damping positioning rod 9, 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.

The spring 80 is sleeved on the damping positioning rod 9, one end of the spring 80 is pressed against the screw sleeve 8, and the other end of the spring 80 is pressed against the plug 4.

When the door is opened to drive the first blade 1 to rotate, when the first blade 1 drives the transmission rod 7 to rotate, the transmission rod 7 drives the screw sleeve 8 with the damping positioning rod 9 to move closer to the air pressure chamber 42 of the plug 4, and the damping positioning rod 9 does not slide over In 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 5 and the communicating hole 44, at this time , The atmosphere of the air pressure chamber 42 produces less pressure on the damping positioning rod 9 and produces a slight positioning force; when the damping positioning rod 9 slides through the third through hole 43, the damping positioning rod 9 blocks the third through hole 43, and the pressure chamber The atmosphere in 42 can only be discharged through the gap between the adjusting seat 5 and the communicating hole 44. At this time, the damping positioning rod 9 moves close to the pneumatic chamber 42 to compress the atmosphere in the pneumatic chamber 42, and the compressed atmosphere generates pressure on the damping positioning rod 9. Thus, the first blade 1 has a positioning function. At the same time, the screw sleeve 8 drives the spring 80 to compress and store energy, and the spring 80 stores energy to drive the screw sleeve 8 to move in the opposite direction. close.

The upper part of the communicating hole 44 of the plug 4 is formed with a necked part 441, and the upper part of the adjusting seat 5 is correspondingly formed with a necked part 52. The area above the third sealing ring 53 is set to gradually decrease in cross-sectional area from bottom to top. In some examples, the upper part of the constricted portion 52 provided with the third sealing ring 53 is provided as a truncated cone. The adjusting seat 5 can be axially moved and installed in the plug 04, and the moving adjusting seat 5 adjusts the size of the gap between the necked portion 52 and the necked portion 441. In some examples, an internal thread 442 is formed on the inner side wall of the communicating hole 44 of the plug 4 to adjust An external thread 54 is formed on the outer side wall of the entire seat 5, and the adjusting seat 5 is threadedly connected with the communicating hole 44 of the plug 4, and the adjusting seat 5 can be rotated to drive its axial displacement, so that the constricted portion 52 of the adjusting seat 5 is connected to different positions The narrowing portion 441 of the hole 44 is in clearance fit, so that the size of the gap can be adjusted, and even the third sealing ring 53 can block the communication hole 44 to adjust the positioning force.

Rotating the adjusting seat 5 can drive its axial displacement, so that the different positions of the constricted portion 52 of the adjusting seat 5 are in clearance fit with the constricted portion 441 of the communicating hole 44, and the adjusting seat 5 is moved to adjust the gap between the constricted portion 52 and the constricted portion 441. The size of the gap adjusts the exhaust volume of the compressed atmosphere in the pneumatic chamber 42 and thereby adjusts the positioning force of the first blade 1.

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 3, 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 4, so that the first blade 1 rotates relatively smoothly with respect to the second blade 2.

As shown in Figures 12 and 13, a hinge structure of the third embodiment of the present invention is different from the first embodiment in that the first shaft sleeve 11 and the second shaft sleeve 21 are aligned and coaxially arranged up and down, and the first shaft sleeve 11 is integral In part, the first blade 1 and the second blade 2 are of the same sheet shape, and the structure of the first blade 1 and the second blade 2 is generally called an H-shaped structure. A bearing is arranged between the lower end surface of the first sleeve 11 and the upper end surface of the second sleeve 21.

As shown in Figures 14 and 15, a hinge structure of the fourth embodiment of the present invention is different from the second embodiment in that: the first blade 1 is an integral part, and the first sleeve 11 includes an upper sleeve 111 and a lower sleeve 112, The upper bushing 111 and the lower bushing 112 are respectively connected to the first blade 1 through a connecting plate, the connecting plate and the first blade 1 have an angular distribution, and the second bushing 21 is formed on the side surface of the second blade 2 superior. The structure of the first blade 1 and the second blade 2 is generally called a butterfly shape.

As shown in Figure 16, Figure 17a and Figure 17b, a hinge structure of the fifth embodiment of the present invention is different from the second embodiment in that: the first sleeve 11 is an integral part, and the first sleeve 11 is axially arranged on the first blade On the side 1, the first blade 1 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 2. The structure of the first blade 1 and the second blade 2 is generally called a flag shape.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or positions indicated The relationship is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore It cannot be understood as a limitation to the present invention.

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. Thus, 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.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , 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 terms in the present invention can be understood according to specific situations.

[00100] 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. Moreover, "above", "above" and "above" the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than that of the second feature. The "below", "below", and "below" the first feature of the second feature includes 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.

[00101] 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 can 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.

[00102] Although the embodiments of the present invention have been shown and described above, it can be understood that the above 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

1: the first blade

12: gap

2: The second blade

21: The second sleeve

211: first through hole

3: Connecting sleeve

31: second through hole

4: plug

42: Air pressure chamber

43: third through hole

441: Necking

5: Adjust the seat

51: Vent

52: shrink neck

53: The third sealing ring

54: External thread

6: The first bearing

7: Transmission rod

71: Screw part

8: Screw sleeve

9: Damping positioning rod

Claims (10)

A hinge structure, characterized in that it comprises: A 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 is also formed with a pneumatic chamber Communicating hole An adjustment seat installed in the communication hole, the adjustment seat is in clearance fit with the side wall of the communication hole, an exhaust hole is formed in the adjustment seat, and the exhaust hole communicates the communication hole and the atmosphere; 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; A damping positioning rod, the damping positioning rod is connected with 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, the damping positioning rod is connected with the connecting sleeve and the air chamber The side wall is sealed and matched. 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 hinge structure according to claim 1, wherein a first axial through hole and a second axial through hole are provided 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 sliding Both ends of the rod are respectively limited in the first axial through hole and the second axial through hole; an annular groove is formed on the outer side wall of the plug, and a first flange is formed on the inner side wall of the connecting sleeve. The first flange of the sleeve is embedded in the annular groove of the plug. The hinge structure according to claim 1, wherein 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 socket is provided with an inwardly-cut flat edge corresponding to the outer-cut flat 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; a first annular groove and a second annular groove are formed on the outer side wall of the first bearing, a second flange and a third flange are correspondingly formed on the inner side wall of the connecting sleeve, and the second flange of the connecting sleeve The 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. The hinge structure according to claim 1, wherein the first sleeve includes an upper sleeve and a lower shaft A second bearing is arranged between the upper shaft sleeve and the upper end of the second shaft sleeve, the second bearing can be rotatably sleeved on the connecting sleeve, and a third bearing is provided between the lower shaft sleeve and the lower end of the second shaft sleeve. Bearing, the third bearing can be rotatably sleeved on the plug. A hinge structure, characterized in that it comprises: A 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 is also formed with a pneumatic chamber Communicating hole An adjustment seat installed in the communication hole, the adjustment seat is in clearance fit with the side wall of the communication hole, an exhaust hole is formed in the adjustment seat, and the exhaust hole communicates the communication hole and the atmosphere; 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; A damping positioning rod, the damping positioning rod is connected with 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, the damping positioning rod is connected with the connecting sleeve and the air chamber Side wall sealing 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 8, 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 portion is provided with the upper part of the third sealing ring so that the area of the cross section from bottom to top becomes gradually smaller; The size of the gap between the neck and the neck. 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, and the adjusting seat is threadedly connected with the communicating hole of the plug.

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