Adjustable hinge

Abstract

The utility model provides an adjustable hinge which comprises a left shell, a large supporting arm, a right shell, a small supporting arm and a functional shaft, a left outer shell in the left shell is fixedly connected with a left large support and a left small support in a penetrating mode through screws, and a right outer shell in the right shell is fixedly connected with a right support in a penetrating mode through screws. And the problem of abnormal sound caused by loosening of components in the moving process is solved.

Description

Technical Field

[0001] The utility model relates to the field of door and window hardware accessories, in particular to hinges. Background Art

[0002] At present, hinges are used for the installation of door leaves. For the sake of beauty and safety, hidden hinges are used. The hidden hinges on the market only play the hinge function of the door leaf. If you want to achieve automatic hydraulic buffer closing to reduce noise and protect people's safety, you need to install a hidden door closer, which is extremely inconvenient. After the ordinary multi-functional hydraulic hinge is installed, the hinge tube is exposed and the volume is large, which will affect the overall beauty of the door leaf. Moreover, the existing hidden hinges cannot achieve the effect of fine-tuning the door leaf up and down, left and right, front and back. If the door frame and the door leaf already have a well-cut installation groove, if the position is not suitable, you can only re-cut or even replace the door frame or door leaf, which greatly increases the cost of labor and materials, and wastes time. The above problems bring a lot of inconvenience to users. The patent number 201922463124.4, entitled "an adjustable hinge", provides a feasible solution to the above problems. However, the hinge rigidity in this solution is slightly lacking, and the components are sometimes loose during use, producing abnormal noise. Utility Model Content

[0003] The utility model provides an adjustable hinge. The technical solution provided by the utility model solves the problem that the door leaf on the door and window needs to be equipped with a door closer if the door leaf needs to achieve the effect of automatic hydraulic buffer closing, and the unsightly problem of the exposed outer tube of the ordinary hydraulic hinge. The utility model is easy to manufacture, firm and reliable, and can fine-tune the spatial installation position of the door leaf up and down, front and back, and left and right by adjusting the hinge. It is easy for users to install and use, saving manpower, financial resources and time, and can meet the needs of modern social life. In addition, the rigidity of the hinge is enhanced, and the technical problem of abnormal noise of the components during use is eliminated.

[0004] The purpose of the embodiment of the utility model is achieved through the following technical solutions:

[0005] Provided is an adjustable hinge, comprising: a left housing, a large arm, a right housing, a small arm, and a functional shaft, wherein the large arm comprises a large shaft portion and two large plates in a curved shape extending in a direction perpendicular to the axis of the large shaft portion, the small arm comprises a small shaft portion and a small plate in a curved shape extending in a direction perpendicular to the axis of the small shaft portion, the gap between the two large plates can accommodate the small plate, the middle portions of the two large plates are hinged with the middle portions of the small plates, the left housing and the ends of the two large plates are movably connected to be relatively displaced, the large shaft portion is hinged with the right housing, the left housing is hinged with the ends of the small plates, a functional shaft capable of storing and releasing energy is arranged inside the right housing, the functional shaft is hinged with the small shaft portion, the rotation of the small arm can cause the functional shaft to store energy, and the release of energy by the functional shaft can cause the small arm to reset;

[0006] The left shell comprises a left outer shell, a left large bracket, and a left small bracket. The left outer shell is provided with a cavity for accommodating the left large bracket. The ends of the left outer shell each have a left mounting plate extending horizontally. The left large bracket comprises a left bottom plate. The left bottom plate has two bottom threaded holes. The two ends of the left bottom plate each have a left side plate extending upward from the end of the left bottom plate. The ends of the two left side plates each have a left flange plate extending horizontally. The two left mounting plates each have a step surface near the cavity. Both step surfaces have left threaded holes. The two step surfaces are each used to accommodate the left large bracket. The two left flange plates on the bracket each have a left through hole, through which a screw can be passed and screwed into the left threaded hole; wherein the left small bracket comprises a left small bottom plate, and each of the two ends of the left small bottom plate has a left small side plate extending upward from the end of the left small bottom plate, and the left small bottom plate has a left small through hole, through which a screw can be passed and screwed into the bottom threaded hole, and the two left small side plates are provided with oblique slide grooves mirroring each other, and the left small bracket is installed in the middle position of the left large bracket; the two large plates of the large support arm are placed in the two empty positions between the left plate and the left small side plate;

[0007] The specific method of hinged connection between the left shell and the end of the small plate is as follows: the two left small side plates are also provided with left small bracket holes in a mirror image of each other, the end of the small plate has a through hole, the end of the small plate is placed between the two left small side plates, a left fixed shaft is passed through the through hole at the end of the small plate, and the two ends of the left fixed shaft are embedded in the two left small bracket holes of the left small side plate;

[0008] The specific method of the relative displacement movable connection between the left shell and the ends of the two large plates is as follows: the ends of the two large plates both have through holes, each of which is connected to the inclined slide groove by a sliding shaft, one end of the sliding shaft is installed in the through hole of the large plate, and the other end of the sliding shaft is installed in the inclined slide groove.

[0009] Furthermore, a large through hole is opened in the middle of the left bottom plate, a long hole is opened in the middle of the left small bottom plate, and a central screw hole is provided at the bottom of the left shell, and a screw can be passed through the long hole and the large through hole and then screwed to the central screw hole.

[0010] Furthermore, a first sliding sleeve is embedded in one end of the sliding shaft that is inserted into the inclined sliding groove.

[0011] Furthermore, there are reinforcing ribs between the two large plates.

[0012] Furthermore, the specific method of hingedly connecting the middle of the two large plates with the middle of the small plate is as follows: the middle of the two large plates has a through hole, the middle of the small plate has a through hole, and when the gap between the two large plates accommodates the small plate, a central axis is used to pass through the through holes on the two large plates and the through holes on the small plate.

[0013] Further, the right shell includes a right outer shell and a right bracket. The right outer shell is provided with a cavity for accommodating the right bracket. The two ends of the right outer shell are respectively provided with a right mounting plate extending horizontally. The right bracket includes a right bottom plate. The two ends of the right bottom plate are respectively provided with a right side plate extending upward from the end of the right bottom plate. The ends of the two right side plates are respectively provided with a right flange plate extending horizontally. The two right mounting plates are respectively provided with a step surface near the cavity. Both step surfaces are provided with a right threaded hole. The two step surfaces are respectively used to accommodate the two right flange plates. Each of the two right flange plates has a right through hole, through which a screw can be passed and screwed into the right threaded hole.

[0014] The two right side plates are provided with an upper right through hole and a lower right through hole from top to bottom in a mirror-image manner to each other;

[0015] The specific method of hinge connection between the large shaft and the right housing is as follows: the large shaft has a through hole, a right fixed shaft passes through the through hole, and the two ends of the right fixed shaft are respectively embedded in the two upper right through holes;

[0016] The specific manner in which the functional shaft for storing and releasing energy is arranged inside the right shell is as follows: one end of the functional shaft is fixedly connected to one of the lower right through holes, and the other end of the functional shaft is rollingly connected to the other lower right through hole.

[0017] Furthermore, the right bracket also includes two side walls extending upward from both sides of the right bottom plate.

[0018] Furthermore, fastening holes are respectively arranged beside the two right threaded holes, and fastening screw holes are respectively arranged on the two right flange plates, through which screws can be passed through the fastening screw holes and then screwed to the fastening holes.

[0019] Further, the specific manner in which the screw can be passed through the left through hole and screwed into the left threaded hole is as follows: the two left through holes are long inwardly recessed left step holes, the screw is used to pass through the left through hole and screwed into the left threaded hole, and the left large bracket is accommodated in the cavity of the left shell in a manner in which there is a gap with the cavity of the left shell in the length direction;

[0020] The specific method of passing the screw through the right through hole and screwing it into the right threaded hole is as follows: the two right through holes are right step holes recessed inward, the heads of the step screws are embedded in the right through holes, the step screws and the right step holes form a matching structure that is rotationally movable and axially synchronously movable, and the step screws pass through the right through holes and are screwed into the right threaded holes.

[0021] Further, the specific manner in which the screw can be passed through the left through hole and screwed into the left threaded hole is as follows: the two left through holes are left step holes that are recessed inwards, the head of the step screw is embedded in the left through hole, the step screw and the left through hole form a matching structure that is rotationally movable and axially synchronously movable, and the step screw passes through the left through hole and screwed into the left threaded hole;

[0022] The specific method of passing the screw through the right through hole and screwing it into the right threaded hole is as follows: the two right through holes are long inwardly recessed right step holes, the screw is used to pass through the right through hole and screw it into the right threaded hole, and the right bracket is accommodated in the cavity of the right outer shell in a way that there is a gap with the cavity of the right outer shell in the length direction.

[0023] Furthermore, the specific method of hinged connection between the functional shaft and the small shaft portion is as follows: the functional shaft includes an outer sleeve, and rocker arms with holes are respectively arranged at both ends of the outer sleeve. The small shaft portion has a through hole, and a driving shaft is used to pass through the through hole of the small shaft portion and the rocker arm with holes.

[0024] Furthermore, the structure of the functional shaft is specifically as follows: the outer sleeve is in the shape of a circular tube as a whole, the inner cavity of the upper tube mouth of the outer sleeve is fixedly embedded with an upper cover with an inner hole, the inner hole of the upper cover is passed through the central shaft, the upper end of the central shaft protrudes from the upper tube mouth of the outer sleeve, a flange is provided on the upper middle column of the central shaft, a rolling bearing is provided between the central shaft and the inner wall of the upper cover, a plurality of steel balls are provided between the upper end surface of the flange and the lower end surface of the upper cover, a piston is embedded in the middle and lower inner cavity of the outer sleeve, the piston is cylindrical, the lower column of the central shaft is inserted into the inner hole of the piston, and the central shaft and the piston form an axial sliding connection and a synchronously rotating matching structure, The piston barrel is axially symmetrically provided with two spiral grooves, the transverse axis passes through the two spiral grooves on the piston, and the two ends of the transverse axis are embedded in two transverse axis embedding holes symmetrically opened on the outer sleeve. The central axis is located between the lower end surface of the flange and the upper end surface of the piston barrel, and the column body is sleeved with a pressure spring. The inner cavity of the lower pipe opening of the outer sleeve is fixedly embedded with a lower cover with an inner hole, and the reduced diameter portion of the lower cover protrudes from the lower pipe opening of the outer sleeve.

[0025] Furthermore, the spiral chute includes an inclined section inclined with respect to the axis of the central shaft and a horizontal section perpendicular to the axis of the central shaft.

[0026] Furthermore, the specific method of fixing one end of the functional shaft to one of the lower right through holes is: the upper end of the central shaft protruding from the upper pipe opening of the outer sleeve is fixedly connected to one of the lower right through holes through a connecting sleeve;

[0027] The specific manner in which the other end of the functional shaft is rollingly connected to the other right lower through hole is that the reduced diameter portion of the lower cover is rollingly connected to the other right lower through hole via a rolling bearing.

[0028] Furthermore, the functional shaft also includes a hydraulic buffer mechanism.

[0029] Furthermore, the specific structure of the hydraulic buffer mechanism is as follows: a one-way valve is arranged at the bottom of the piston, a first sealing ring is arranged between the outer wall of the upper cover and the inner wall of the outer sleeve, a second sealing ring is arranged between the inner hole wall of the upper cover and the outer part of the column of the central axis, the column of the horizontal axis is sleeved with a second sliding sleeve in the shape of a circular tube, the outer tube body of the outer sleeve is sleeved with an annular sealing sleeve, and the sealing sleeve covers the two horizontal axis embedded holes. An upper sealing ring and a lower sealing ring are arranged between the sealing sleeve and the outer sleeve, the upper sealing ring is located above the horizontal axis, and the lower sealing ring is located below the horizontal axis, a third sealing ring is arranged between the outer wall of the lower cover and the inner wall of the outer sleeve, the inner hole of the lower cover is screwed with a columnar speed regulating oil needle, the upper column body of the speed regulating oil needle extends into the inner hole of the cylinder bottom of the piston, a fourth sealing ring is arranged between the outer side of the lower column body of the speed regulating oil needle and the inner hole wall of the lower cover, a fifth sealing ring is arranged between the lower side of the outer wall of the cylinder body of the piston and the inner wall of the outer sleeve, the space between the lower end face of the one-way valve and the inner end face of the lower cover is a pressurized oil chamber, and the space between the upper end face of the one-way valve and the inner end face of the upper cover is an oil storage chamber.

[0030] Furthermore, the functional shaft also includes a speed regulating screw for adjusting the flow speed of the hydraulic oil in the functional shaft. A longitudinal hole perpendicular to the axial direction of the functional shaft is provided on the plate at one end of the right housing, and a transverse hole consistent with the axial direction of the functional shaft is provided on the side wall at the same end of the right housing. The transverse hole and the longitudinal hole are interlaced and connected. One end of the speed regulating screw is a needle rod portion with a variable diameter, and the other end of the speed regulating screw is a driving portion with a first tooth on the column body. The middle section of the speed regulating screw is provided with a thread meshing with the first thread on the inner wall of the lower cover of the functional shaft.

[0031] The needle rod extends into the speed regulating valve hole on the piston, the driving part is arranged outside the functional shaft and extends into the transverse hole on the right shell, and the longitudinal hole is used to extend into the driving member, and the driving member is provided with an engaging part engaged with the first tooth.

[0032] Furthermore, the needle rod portion of the speed regulating screw, the middle section of the speed regulating screw and the driving portion are split.

[0033] Furthermore, the driving member is cylindrical as a whole, including an upper end portion provided with a recess, a middle column body provided with an engaging portion, and the engaging portion is threaded.

[0034] Furthermore, the lower section of the driving member is a lower column body with a diameter smaller than that of the middle column body, a step surface is formed between the middle column body and the lower column body, and the lower column body is used to pass through the longitudinal hole and expose the lower bottom surface of the right shell, and the exposed part is equipped with a gasket.

[0035] Furthermore, the longitudinal hole is a non-through hole, a retaining spring is arranged on the upper part of the longitudinal hole, and the driving member can move axially in the longitudinal hole.

[0036] Further, a transverse hole penetrates the side wall of the same end of the right housing.

[0037] Furthermore, the driving member is in the shape of a flat strip as a whole, including a handle portion and a column body provided with an engaging portion, and the engaging portion is in the shape of teeth.

[0038] Furthermore, the longitudinal hole penetrates the plate at one end of the right shell, and the transverse hole penetrates the plate at the same end of the right shell.

[0039] Furthermore, a third sliding sleeve is fixedly embedded at the end of the lower cover, and the speed regulating screw passes through the third sliding sleeve.

[0040] Using the technical solution of the utility model, the left and right shells are connected by two large and small supporting arms that are engaged with each other, and the left and right shells can move relative to each other around the central axis embedded in the middle of the large and small supporting arms. The left and right shells are box-shaped, and the inner cavity of the shell is embedded with a bracket that is as a whole sunken in the middle and has flange plates on both sides. The two are connected by screws or the like. One end of the large supporting arm is hinged to the right shell, and the other end is movably connected to the left shell so as to be relatively displaceable. One end of the small supporting arm is hinged to the left shell, and the other end is hinged to the rocker arm with a hole of the functional shaft in the right shell through a driving shaft. In addition, through the cooperation of some other components, the door leaf can be adjusted in three dimensions by simply twisting these accessories with tools, so that the hinge can be installed quickly and conveniently, and the door leaf has the function of automatic closing, and has a hydraulic buffer to control its closing speed, effectively reducing the collision sound between the door leaf and the door frame, eliminating the safety hazards of damage to the door leaf and the matching electronic lock and pinching hands and injuring people due to impact closing of the door, and the door leaf is firm, reliable, easy to replace and repair, and can meet the needs of modern social life. Moreover, the left small bracket is placed in the space between the two large plates of the large arm, and a groove is made on the left small bracket to form a movable connection between the large arm and the left small bracket, which makes the hinge more rigid as a whole. In addition, the left large bracket and the left small bracket each have a through hole at the center position, and the screws can be screwed to the central screw hole at the bottom of the left shell through the two through holes, which further increases the rigidity of the hinge. Moreover, the right shell and the right bracket are connected more tightly by tightening screws, which can eliminate the abnormal noise caused by loose parts during use. In addition, a speed regulating structure is set on the housing of the hinge, and the closing speed of the hinge can be adjusted by a tool in the end face direction of the hinge after the hinge is installed, which solves the problem that the closing speed of the hydraulic buffer hidden hinge on the market cannot be adjusted after installation, is easy to install and adjust, and saves manpower, financial resources and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is an exploded schematic diagram of an embodiment of the utility model;

[0042] Figure 2 This is an exploded schematic diagram of another embodiment of the present invention;

[0043] Figure 3 It is a schematic diagram of the right functional axis in the utility model;

[0044] Figure 4It is a schematic cross-sectional view of a side of one embodiment of the utility model;

[0045] Figure 5 It is a schematic diagram of the structure of a driving member in one embodiment of the utility model;

[0046] Figure 6 It is a structural schematic diagram of the speed regulating screw in the utility model;

[0047] Figure 7 yes Figure 5 Schematic diagram of the structure of the middle driving part and the speed regulating screw;

[0048] Figure 8 yes Figure 6 Schematic diagram of the structure of the split speed regulating screw;

[0049] Fig. 9 It is a structural schematic diagram of another driving member in the utility model;

[0050] Fig.10 yes Fig. 9 Schematic diagram of the structure of the middle driving part and the speed regulating screw;

[0051] Fig.11 yes Fig.10 Another schematic diagram of the structure of the middle driving member and the speed regulating screw;

[0052] Fig.12 It is a cross-sectional schematic diagram of another embodiment of the utility model;

[0053] Fig.13 yes Fig.12 Schematic diagram of the structure of the middle driving part and the speed regulating screw;

[0054] Fig.14 It is a structural schematic diagram of a speed regulating screw equipped with a third sliding sleeve. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and examples. Figures 1 to 14 Reading.

[0056] Embodiment 1:

[0057] refer to Figure 1 As shown,

[0058] Provided is a hinge, comprising: a left housing 11, a large arm 12, a right housing 21, a small arm 22, and a functional shaft 23, wherein the large arm 12 comprises a large shaft portion 121 and two large plates 122 in a curved shape extending in a direction perpendicular to the axis of the large shaft portion 121, the small arm 22 comprises a small shaft portion 221 and a small plate 222 in a curved shape extending in a direction perpendicular to the axis of the small shaft portion 221, the gap between the two large plates 122 can accommodate the small plate 222, and the middle parts of the two large plates 122 are connected to the functional shaft 23. The middle part of the small plate 222 is hinged, the left shell 11 and the ends of the two large plates 122 are movably connected to make relative displacement, the large shaft portion 121 is hinged to the right shell 21, the left shell 11 is hinged to the ends of the small plate 222, and a functional shaft 23 capable of storing and releasing energy is arranged inside the right shell 21, the functional shaft 23 is hinged to the small shaft portion 221, the rotation of the small arm 22 can make the functional shaft 23 store energy, and the release of energy of the functional shaft 23 can reset the small arm 22;

[0059] The left shell 11 comprises a left outer shell 111, a left large bracket 112, and a left small bracket 113. The left outer shell 111 is provided with a cavity for accommodating the left large bracket 112. Each end of the left outer shell 111 has a left mounting plate 1111 extending horizontally. The left large bracket 112 comprises a left bottom plate 1121. Two bottom threaded holes 1125 are provided on the left bottom plate 1121. Each end of the left bottom plate 1121 has a left side plate 1122 extending upward from the end of the left bottom plate 1121. Each end of the two left side plates 1122 has a left flange plate 1123 extending horizontally. Each of the two left mounting plates 1111 has a step surface near the cavity. Both step surfaces have a left threaded hole 1112. Each of the two step surfaces is used to accommodate the two left flange plates 1123 on the left large bracket 112. The two left flange plates 1123 each have a left through hole 1124, through which a screw can be passed and screwed into the left threaded hole 1112; wherein, the left small bracket 113 comprises a left small bottom plate 1131, and each of the two ends of the left small bottom plate 1131 has a left small side plate 1132 extending upward from the end of the left small bottom plate 1131, and the left small bottom plate has a left small through hole 1133, through which a screw can be passed and screwed into the bottom threaded hole 1125, and the two left small side plates 1132 are mirror-imaged to each other and are provided with oblique slide grooves 1134, and the left small bracket 113 is installed in the middle position of the left large bracket 112; the two empty positions between the left side plate 1122 and the left small side plate 1132 are used to place the two large plates 122 of the large support arm 12;

[0060] The specific manner in which the left housing 11 is hinged to the end of the small plate 222 is as follows: the two left small side plates 1132 are also provided with left small bracket holes 1135 in a mirror image of each other, the end of the small plate 222 has a through hole, the end of the small plate 222 is placed between the two left small side plates 1132, a left fixed shaft 30 is passed through the through hole at the end of the small plate 222, and the two ends of the left fixed shaft 30 are embedded in the two left small bracket holes 1135 of the left small side plate 1132;

[0061] The specific manner in which the left housing 11 and the ends of the two large plates 122 are movably connected to each other for relative displacement is as follows: the ends of the two large plates 122 both have through holes, each of which is connected to the inclined slide groove 1134 by a sliding shaft 40, one end of the sliding shaft 40 is inserted into the through hole of the large plate 122, and the other end of the sliding shaft 40 is inserted into the inclined slide groove 1134.

[0062] In this embodiment, reference can be made in particular to Figure 1 One end of the large arm is linked to the left shell body in a relatively displaceable manner, the other end of the large arm is hinged to the right shell body, one end of the small arm is hinged to the functional shaft in the right shell body, and the other end of the small arm is hinged to the left shell body, while the middle of the large and small arms are hinged together. Since the functional shaft has the function of storing and releasing energy, the functional shaft and the arm control each other, thereby controlling the movement of the hinge. The door leaf has the function of automatic closing, which is firm, reliable, easy to replace and maintain, and can meet the needs of modern social life. Moreover, the left small bracket is placed in the space between the two large plates of the large arm, and a groove is cut on the left small bracket to form a movable connection between the large arm and the left small bracket, which makes the hinge more rigid as a whole.

[0063] Furthermore, a large through hole 1127 is opened in the middle of the left bottom plate 1121, a long hole 1136 is opened in the middle of the left small bottom plate 1131, and a central screw hole 1115 is provided at the bottom of the left outer shell 111. A screw can be passed through the long hole 1136 and the large through hole 1127 and then screwed to the central screw hole 1115.

[0064] The left large bracket and the left small bracket each have a through hole at a central position, and screws can be screwed to the central screw hole at the bottom of the left shell through the two through holes, further increasing the rigidity of the hinge.

[0065] like Figure 2 As shown, further, one end of the sliding shaft 40 is inserted into the through hole of the large plate 122, and the other end of the sliding shaft 40 is inserted into the inclined sliding groove 1134, and the first sliding sleeve 406 is embedded in one end of the inclined sliding groove 1134.

[0066] The use of the first sliding sleeve enables the sliding shaft to move more smoothly in the inclined sliding groove, thereby reducing the resistance during sliding.

[0067] Furthermore, there is a reinforcing rib between the two large panels 122 .

[0068] Since there is some distance between the two large plates, adding a reinforcing rib between them can increase the ability of the large support arm to withstand external forces and make it less likely to deform.

[0069] Furthermore, the middle parts of the two large plates 122 and the middle parts of the small plates 222 are hinged in a specific manner as follows: the middle parts of the two large plates 122 have through holes, and the middle parts of the small plates 222 have through holes.

[0070] When the small plate 222 is accommodated in the gap between the large plates 122 , a central axis 1 is used to pass through the through holes on the two large plates 122 and the through holes on the small plate 222 .

[0071] This method of using the central axis to pass through the through hole has better connection strength and is more convenient to produce. Of course, instead of the through hole method, several plates are provided with non-through slots, and an axis is inserted into two slots to connect them and achieve the effect of use. The hinged connection between the components in the present invention can be replaced by this method.

[0072] Further, the right shell 21 includes a right outer shell 211 and a right bracket 212. The right outer shell 211 is provided with a cavity for accommodating the right bracket 212. The two ends of the right outer shell 211 each have a right mounting plate 2111 extending horizontally. The right bracket 212 includes a right bottom plate 2121. The two ends of the right bottom plate 2121 each have a right side plate 2122 extending upward from the end of the right bottom plate 2121. The ends of the two right side plates 2122 each have a right flange extending horizontally. Plate 2123, the two right mounting plates 2111 each have a step surface near the cavity, both of the step surfaces have a right threaded hole 2112, and the two step surfaces are each used to accommodate the two right flange plates 2123, and the two right flange plates 2123 each have a right through hole 2124, through which a screw can be passed and screwed into the right threaded hole 2112, and the two right side plates 2122 are mirror-imaged to each other and are provided with an upper right through hole 2125 and a lower right through hole 2126 from top to bottom;

[0073] The specific manner in which the large shaft portion 121 is hinged to the right housing 21 is as follows: the large shaft portion 121 has a through hole, a right fixed shaft 20 passes through the through hole, and both ends of the right fixed shaft 20 are respectively embedded in the two right upper through holes 2125;

[0074] The specific manner in which the functional shaft 23 capable of storing and releasing energy is arranged inside the right shell 21 is as follows: one end of the functional shaft 23 is fixedly connected to one of the lower right through holes 2126 , and the other end of the functional shaft 23 is rollingly connected to another lower right through hole 2126 .

[0075] This method of installing the bracket in the cavity of the shell can well hide the parts in the shell, which is simple and beautiful in appearance, more convenient to install, and also convenient to protect the parts. One end of the functional shaft is fixedly connected to the shell, and the other end is movably connected to the shell, so that the energy release of the functional shaft can effectively transfer kinetic energy to other parts, and the movement of other parts can also cause the functional shaft to store energy.

[0076] Furthermore, the right bracket 212 also includes two side walls 2128 extending upward from both sides of the right bottom plate 2121 .

[0077] Adding side walls on both sides can increase the rigidity of the right bracket and keep its shape unchanged after long-term use.

[0078] Furthermore, a fastening hole 2114 is respectively provided next to the two right threaded holes 2112 , and a fastening screw hole 2127 is respectively provided on the two right flange plates 2123 , and a screw can be passed through the fastening screw hole 2127 and then screwed to the fastening hole 2114 .

[0079] Adding fastening screws can better fix the right housing and the right bracket and reduce abnormal noise caused by loose components during use.

[0080] Further, the specific manner in which a screw can be passed through the left through hole 1124 and screwed into the left threaded hole 1112 is as follows: the two left through holes 1124 are long, inwardly recessed left step holes, the screw is used to pass through the left through hole 1124 and screwed into the left threaded hole 1112, and the left large bracket 112 is accommodated in the cavity of the left housing 111 in a manner that there is a gap with the cavity of the left housing 111 in the length direction;

[0081] The specific method of passing a screw through the right through hole 2124 and screwing it into the right threaded hole 2112 is as follows: the two right through holes 2124 are right step holes recessed inward, the heads of the step screws are embedded in the right through holes 2124, the step screws and the right step holes form a matching structure that is rotationally movable and axially synchronously movable, and the step screws pass through the right through holes 2124 and are screwed into the right threaded hole 2112.

[0082] Further, the specific manner in which a screw can be passed through the left through hole 1124 and screwed into the left threaded hole 1112 is as follows: the two left through holes 1124 are left step holes that are recessed inward, the heads of the step screws are embedded in the left through holes 1124, the step screws and the left through holes 1124 form a matching structure that is rotationally movable and axially synchronously movable, and the step screws pass through the left through holes 1124 and are screwed into the left threaded hole 1112;

[0083] The specific method in which a screw can be passed through the right through hole 2124 and screwed into the right threaded hole 2112 is as follows: the two right through holes 2124 are long inwardly recessed right step holes, the screw 14 is used to pass through the right through hole 2124 and screwed into the right threaded hole 2112, and the right bracket 212 is accommodated in the cavity of the right outer shell 211 in a manner that there is a gap with the cavity of the right outer shell 211 in the length direction.

[0084] In the above embodiment, the left mounting plate and the right mounting plate can be fixedly connected with the door frame or door leaf by screws. The up and down, left and right adjustable functions of the hinge can be set in a mirror image, that is, the left shell can be set with a left and right moving function, the right shell can be set with an up and down moving function, or the right shell can be set with a left and right moving function, and the left shell can be set with an up and down moving function. In general, the up and down moving function is set on one side of the shell, and the left and right moving function is set on the other side of the shell. As mentioned above, for example, since the left step hole is a long hole that is recessed inward, and since the left large bracket is accommodated in the cavity of the left shell in a manner that there is a gap with the cavity of the left shell in the length direction, it means that the left large bracket can move in the length direction in the cavity of the left shell, and the screw can still be screwed into the left threaded hole. The inward recess of the left step hole means that the screw head can sink into the left step hole without being exposed. On the one hand, it is beautiful, and on the other hand, the extension of the screw head will not affect the closing smoothness of the shells on both sides and the spacing after the shells on both sides are closed. By loosening the screws, the relative position of the left large bracket to the left outer shell can be moved. When the left outer shell is higher than the right outer shell in the length direction, it means that the door leaf connected to the left outer shell rises in the vertical direction, and the left large bracket can be moved downward, maintaining the same relative position with the right bracket. The door frame connected to the right outer shell where the right bracket is located does not need to be slotted and installed with hinges, thereby realizing the up and down adjustment of the door leaf and changing the relationship between the door leaf and the door frame.

[0085] The size of the upper and lower door gaps.

[0086] The function of adjusting the door leaf left and right is demonstrated as follows: since the step screw forms a matching structure with the right step hole that is rotationally movable and axially synchronously movable, the depth of the right bracket embedded in the inner cavity of the right shell can be changed by turning the step screw to adjust the screwing depth of the rod, so that the relative distance between the left shell and the right shell can be changed, thereby realizing the left and right adjustment of the door leaf and changing the size of the left and right door gaps between the door leaf and the door frame.

[0087] The advantage of the above-mentioned adjustment of the door leaf up and down to change the size of the upper and lower door gaps between the door leaf and the door frame, and the adjustment of the door leaf left and right to change the size of the left and right door gaps between the door leaf and the door frame, is that the user no longer needs to make additional grooves on the door leaf or door frame for such adjustments and pay additional related service fees, and can achieve such adjustments by himself or during the first installation.

[0088] Furthermore, the specific manner in which the functional shaft 23 is hinged to the small shaft portion 221 is as follows: the functional shaft 23 includes an outer sleeve 231, and a rocker arm 232 with a hole is provided at each end of the outer sleeve 231, and the small shaft portion 221 has a through hole, and a drive shaft 70 is used to pass through the through hole of the small shaft portion 221 and the rocker arm 232 with a hole.

[0089] Further, the structure of the functional shaft 23 is specifically as follows: the outer sleeve 231 is in the shape of a circular tube as a whole, the inner cavity of the upper pipe opening of the outer sleeve 231 is fixedly embedded with an upper cover 81 with an inner hole, the inner hole of the upper cover 81 is penetrated by the central shaft 9, the upper end of the central shaft 9 protrudes from the upper pipe opening of the outer sleeve, the upper middle column of the central shaft 9 is provided with a flange 91, a rolling bearing 10 is arranged between the central shaft 9 and the inner wall of the upper cover 81, a plurality of steel balls are arranged between the upper end surface of the flange 91 and the lower end surface of the upper cover 81, a piston 82 is embedded in the middle and lower inner cavity of the outer sleeve 231, the piston 82 is in the shape of a cylinder, the lower column of the central shaft 9 is inserted into the inner hole of the piston 82, and the central shaft 9 and the piston 82 form an axial sliding connection and synchronous rotation matching structure, The cylinder body of the piston 82 is axially symmetrically provided with two spiral grooves 821, and the transverse axis 92 passes through the two spiral grooves 821 on the piston. The two ends of the transverse axis 92 are embedded in two transverse axis embedding holes 61 symmetrically opened on the outer sleeve 231. The column body of the center axis 9 located between the lower end surface of the flange 91 and the upper end surface of the cylinder body of the piston 82 is sleeved with a pressure spring 94. The inner cavity of the lower pipe mouth of the outer sleeve 231 is fixedly embedded with a lower cover 83 with an inner hole, and the reduced diameter portion 831 of the lower cover 83 protrudes from the lower pipe mouth of the outer sleeve 231.

[0090] Furthermore, the spiral chute 821 includes an inclined section inclined with respect to the axis of the central shaft 9 and a horizontal section perpendicular to the axis of the central shaft 9 .

[0091] Further, the specific method of fixing one end of the functional shaft 23 with one of the lower right through holes 2126 is as follows: the upper end of the central shaft 9 protruding from the upper pipe opening of the outer sleeve 231 is fixedly connected with one of the lower right through holes 2126 through a connecting sleeve;

[0092] The specific manner in which the other end of the functional shaft 23 is rollingly connected to the other lower right through hole 2126 is that the reduced diameter portion 831 of the lower cover 83 is rollingly connected to the other lower right through hole via a rolling bearing.

[0093] Furthermore, the functional shaft 23 also includes a hydraulic buffer mechanism.

[0094] like Figure 3 As shown, further, the specific structure of the hydraulic buffer mechanism is as follows: a one-way valve 822 is provided at the bottom of the piston 82, a first sealing ring 62 is provided between the outer wall of the upper cover 81 and the inner wall of the outer sleeve 231, a second sealing ring 63 is provided between the inner hole wall of the upper cover 81 and the outer body of the central shaft 9, the body of the transverse shaft 92 is sleeved with a second tubular sliding sleeve 84, the outer tube body of the outer sleeve 231 is sleeved with an annular sealing sleeve 64, and the sealing sleeve 64 covers the two transverse shaft embedding holes 61. An upper sealing ring 65 and a lower sealing ring 66 are arranged between the sealing sleeve 64 and the outer sleeve 231. The upper sealing ring 65 is located above the horizontal axis 92, and the lower sealing ring 66 is located below the horizontal axis 92. A third sealing ring 67 is arranged between the outer wall of the lower cover 83 and the inner wall of the outer sleeve. A columnar speed regulating oil needle 85 is screwed into the inner hole of the lower cover. The upper column of the speed regulating oil needle 85 extends into the bottom of the cylinder of the piston 82. An inner hole of the oil regulating needle 85, a fourth sealing ring 68 is arranged between the outer part of the lower column body of the oil regulating needle 85 and the inner hole wall of the lower cover 83, a fifth sealing ring 69 is arranged between the lower part of the outer wall of the cylinder body of the piston 82 and the inner wall of the outer sleeve 231, the space between the lower end surface of the one-way valve 822 and the inner end surface of the lower cover 83 is the pressurized oil chamber 600, and the space between the upper end surface of the one-way valve 822 and the inner end surface of the upper cover 81 is the oil storage chamber 601.

[0095] The adjustable hinge has one side of its housing embedded in the door frame and the other side embedded in the door leaf. When the door leaf is closed, the inner cross-section of the hinge is as follows: Figure 3 and Figure 7 As shown in the figure, the left and right shells are opposite to each other, the end of the small arm embedded with the drive shaft is close to the bottom of the right bracket, the connected functional shaft is in the energy-release state, and the internal piston is close to the lower cover. When the user opens the door leaf, Figures 4 to 6 , Figure 8As shown, the left and right shells are relatively separated along the middle axis. Among the large and small arms hinged by the middle axis, one end of the large arm is sleeved on the right fixed axis of the right bracket. The position remains unchanged and it just rotates around it, and the other end is pulled outward. At this time, the large arm drives the small arm to be pulled outward through the middle axis, and the small arm links the rocker arm with holes through the driving shaft, so that the rocker arm with holes and the outer sleeve of the functional shaft rotate outward along the axis of the functional shaft, and the transverse axes of the heads at both ends embedded in the outer sleeve of the functional shaft also rotate with it, and the transverse axis slides on the inclined section of the piston to make the piston move axially upward. The axial upward movement of the piston compresses the pressure spring to store energy, and the valve body of the one-way valve leaves the bottom of the piston cylinder. The one-way valve forms a passage, so that the hydraulic oil in the functional shaft flows from the oil storage chamber through the one-way valve Towards the pressurized oil chamber, when the external force to open the door is completely removed, the pressure spring releases the pressure to push the piston forward, and under the action of the inclined section of the piston spiral slide groove, the horizontal axis rotates, driving the outer sleeve of the functional shaft and the rocker arm with holes to reset and rotate, and the rocker arm with holes pulls the support arm inward through the drive shaft to reset, thereby realizing automatic closing. When the piston resets and moves downward, the valve body of the one-way valve fits with the piston to form a seal, so that the hydraulic oil in the pressurized oil chamber flows to the oil storage chamber through the gap between the speed regulating oil needle and the oil through hole at the bottom of the piston cylinder. By adjusting the insertion amount of the speed regulating oil needle to change the size of the gap between the speed regulating oil needle and the oil through hole of the piston, the flow of hydraulic oil from the pressurized oil chamber to the oil storage chamber can be controlled, and the downward speed of the piston can be controlled to realize adjustable buffer closing.

[0096] When the horizontal axis slides to the horizontal section of the spiral groove of the piston, the piston does not make axial movement and the pressure released by the pressure spring cannot drive the horizontal axis. Therefore, the hinge can stay in this situation, and a bayonet is opened in the horizontal section to engage with the horizontal axis. The hinge also produces a door suction function at this angle accordingly. Example

[0097] like Figures 4 to 14 As shown, Figure 3 Compared with the prior art shown in the figure, the present invention extends the speed regulating screw in the axial direction on the basis of the prior art:

[0098] like Figures 4 to 7As shown, the functional shaft also includes a speed regulating screw 3 for adjusting the flow speed of the hydraulic oil in the functional shaft 23. A longitudinal hole 201 perpendicular to the axial direction of the functional shaft 23 is provided on the plate at one end of the right housing 211. A transverse hole 202 consistent with the axial direction of the functional shaft 23 is provided on the side wall at the same end of the right housing 211. The transverse hole 202 is interlaced with the longitudinal hole 201. One end of the speed regulating screw 3 is a needle rod portion 301 in a variable diameter shape, and the other end of the speed regulating screw 3 is a needle rod portion 301 in a variable diameter shape. The end of the column is provided with a driving part with a first tooth 302, the middle section of the speed regulating screw 3 is provided with a thread 303 meshing with the first thread 101 on the inner wall of the lower cover 83 of the functional shaft 23, the needle rod portion 301 extends into the speed regulating valve hole 102 on the piston 82, the driving part is arranged on the outside of the functional shaft 23 and extends into the transverse hole 202 on the right shell 211, the longitudinal hole 201 is used to extend into the driving member 4, and the driving member 4 is provided with an engaging portion 401 meshing with the first tooth 302.

[0099] like Figure 8 As shown, further, the needle rod portion 301 of the speed regulating screw 3, the middle section of the speed regulating screw 3 and the driving portion are split.

[0100] Furthermore, the driving member 4 is cylindrical as a whole, including an upper end portion provided with a recessed portion 402 , a middle column body provided with a meshing portion 401 , and the meshing portion 401 is threaded.

[0101] Furthermore, the lower section of the driving member 4 is a lower column body with a diameter smaller than the diameter of the middle column body, and a step surface 403 is formed between the middle column body and the lower column body. The lower column body is used to pass through the longitudinal hole 201 and expose the lower bottom surface of the right shell 211, and the exposed part is equipped with a gasket 404.

[0102] By utilizing the step surface and the end surface of the gasket, the up and down axial movement of the driving member is restricted, but the left and right rotation is possible.

[0103] Furthermore, the transverse hole 202 penetrates the side wall of the same end of the right housing 211 .

[0104] like Figures 9 to 11 As shown, further, the driving member 4 is in the shape of a flat strip as a whole, including a handle portion 405 and a column body provided with a meshing portion 401, and the meshing portion 401 is in the shape of teeth.

[0105] Furthermore, the longitudinal hole 201 penetrates the plate at one end of the right housing 211 , and the transverse hole 202 penetrates the plate at the same end of the right housing 211 .

[0106] In this embodiment, after the hinge is installed, the user rotates the recess on the driving member with an adapter tool, and the thread of the engaging portion of the driving member is engaged with the first teeth on the speed regulating screw during rotation.

[0107] Note: The linkage between the driving part and the speed regulating screw is actually the transmission of the worm and the worm wheel. The rotation of the speed regulating screw is equivalent to the rotation in the threaded hole in the functional shaft, that is, the first threaded hole on the inner wall of the lower cover. The overall axial movement of the speed regulating screw can change the position of the needle rod part extending into the speed regulating valve hole in the functional shaft, and the gap between the needle rod part and the speed regulating valve hole can be changed. The diameter change of the needle rod part means that the cross-sectional size of each position segment of the needle rod part is set according to the needs. When the needle rod part is inserted into the speed regulating valve hole at different positions and depths, the gap between the needle rod part and the speed regulating valve hole

[0108] The speed of the hinge is adjusted by using a tool in the direction of the hinge end face after the hinge is installed, which solves the problem that the closing speed of the hydraulic buffer hidden hinge on the market cannot be adjusted after installation. It is easy to install and adjust, saves manpower, financial resources and time, and meets the needs of modern social life.

[0109] like Fig.12 , 13 As shown, further, the longitudinal hole 201 is a non-through hole, a retaining spring 2011 is arranged on the upper part of the longitudinal hole 201 , and the driving member 4 can move axially in the longitudinal hole 201 .

[0110] Compared with the aforementioned configuration of "the driving member 4 is in the shape of a flat strip", since the driving member in the shape of a strip needs to be pulled out after use, and since the driving member is very small, it is easy to be lost in daily use. In this embodiment, since there is a retaining spring and the longitudinal hole is non-penetrating, the driving member will not slip out of the longitudinal hole and be lost. Compared with the aforementioned configuration of "the step surface and the end surface of the gasket restrict the axial movement of the driving member up and down, but it can rotate left and right", that is, Figure 7 Compared with the technical solution in the embodiment shown, Figure 7 In the scheme, since the central axis rotates when the hinge is in use, the speed regulating screw also rotates, and the upper and lower shaft movements of the driving member are limited, then, due to the transmission principle of the worm and worm wheel, the speed regulating screw driven by the driving member will move axially in the speed regulating valve hole, affecting the flow of hydraulic oil and affecting the speed adjustment. In addition, the frequent movement of the hinge causes the speed regulating screw to move axially in the speed regulating valve hole frequently, which will cause wear to the speed regulating screw and other parts, affecting the use effect and the service life of the hinge. When it is set that when the hinge is in use, the speed regulating screw also rotates with the rotation of the functional shaft, and the principle that the driving member can move axially is used to keep the relative position of the speed regulating screw and the functional shaft unchanged, so the hinge is more stable when working.

[0111] like Fig.14 As shown, further, a third sliding sleeve 86 is fixedly embedded at the end of the lower cover 83 , and the speed regulating screw 3 passes through the third sliding sleeve 86 .

[0112] The purpose of setting the third sliding sleeve is to make the speed regulating screw limit and adjust the rotation of the speed regulating valve hole smoother when the speed regulating screw moves axially.

[0113] In the above embodiments, those skilled in the art may replace the above parts with other parts according to their knowledge and techniques in the field.

[0114] The above is a detailed introduction to an adjustable hinge provided in an embodiment of the present invention. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An adjustable hinge, characterized in that: include: A left shell (11), a large support arm (12), a right shell (21), a small support arm (22), and a functional shaft (23), wherein the large support arm (12) comprises a large shaft portion (121) and two large plates (122) in a curved shape extending in a direction perpendicular to the axis of the large shaft portion (121), and the small support arm (22) comprises a small shaft portion (221) and a small plate (222) in a curved shape extending in a direction perpendicular to the axis of the small shaft portion (221), wherein a gap between the two large plates (122) can accommodate the small plate (222), and the middle portions of the two large plates (122) are adjacent to the small plates. The middle part of the small arm (222) is hinged, the left shell (11) and the ends of the two large plates (122) are movably connected to each other so as to be relatively displaceable, the large shaft portion (121) is hinged to the right shell (21), the left shell (11) and the ends of the small plates (222) are hinged, a functional shaft (23) capable of storing and releasing energy is arranged inside the right shell (21), the functional shaft (23) is hinged to the small shaft portion (221), the rotation of the small arm (22) can cause the functional shaft (23) to store energy, and the release of energy by the functional shaft (23) can cause the small arm (22) to reset; The left housing (11) comprises a left outer shell (111), a left large bracket (112), and a left small bracket (113); the left outer shell (111) is provided with a cavity for accommodating the left large bracket (112); each end of the left outer shell (111) has a left mounting plate (1111) extending horizontally; the left large bracket (112) comprises a left bottom plate (1121); two bottom threaded holes (1125) are formed on the left bottom plate (1121); 21) at both ends, each having a left side plate (1122) extending upward from the end of the left bottom plate (1121), each end of the two left side plates (1122) having a left flange plate (1123) extending horizontally, each of the two left mounting plates (1111) having a step surface at a position close to the cavity, each of the two step surfaces having a left threaded hole (1112), and each of the two step surfaces being used to accommodate the two left flange plates (1123) on the left large bracket (112), The two left flange plates (1123) each have a left through hole (1124), and a screw can be passed through the left through hole (1124) and screwed into the left threaded hole (1112); wherein the left small bracket (113) comprises a left small bottom plate (1131), and each of the two ends of the left small bottom plate (1131) has a left small side plate (1132) extending upward from the end of the left small bottom plate (1131), and the left small bottom plate has a left small through hole (113 3), a screw can be passed through the left small through hole (1133) and screwed into the bottom threaded hole (1125), the two left small side plates (1132) are provided with oblique slide grooves (1134) in a mirror-image manner, the left small bracket (113) is installed in the middle position of the left large bracket (112); the two empty positions between the left side plate (1122) and the left small side plate (1132) are used to place the two large plates (122) of the large support arm (12); The specific manner in which the left housing (11) and the end of the small plate (222) are hinged is as follows: the two left small side plates (1132) are also provided with left small bracket holes (1135) in a mirror-image manner to each other, the end of the small plate (222) has a through hole, the end of the small plate (222) is placed between the two left small side plates (1132), a left fixed shaft (30) is passed through the through hole at the end of the small plate (222), and the two ends of the left fixed shaft (30) are embedded in the two left small bracket holes (1135) of the left small side plate (1132); The specific manner in which the left housing (11) and the ends of the two large plates (122) are movably connected to each other so as to be relatively displaceable is as follows: each end of the two large plates (122) has a through hole, each of which is connected to the inclined slide groove (1134) by a sliding shaft (40), one end of the sliding shaft (40) is inserted into the through hole of the large plate (122), and the other end of the sliding shaft (40) is inserted into the inclined slide groove (1134).

2. An adjustable hinge according to claim 1, characterized in that: A large through hole (1127) is provided in the middle of the left bottom plate (1121), an elongated hole (1136) is provided in the middle of the left small bottom plate (1131), and a central screw hole (1115) is provided at the bottom of the left housing (111). A screw can be passed through the elongated hole (1136) and the large through hole (1127) and then screwed to the central screw hole (1115).

3. An adjustable hinge according to claim 1, characterized in that: A first sliding sleeve (406) is embedded in one end of the sliding shaft (40) that is inserted into the inclined sliding groove (1134).

4. The adjustable hinge according to claim 1, characterized in that: There is a reinforcing rib between the two large plates (122).

5. The adjustable hinge according to claim 1, characterized in that: The specific manner in which the middle parts of the two large plates (122) are hingedly connected to the middle parts of the small plates (222) is as follows: the middle parts of the two large plates (122) each have a through hole, the middle part of the small plate (222) has a through hole, and when the gap between the two large plates (122) accommodates the small plate (222), a central axis (1) is used to pass through the through holes on the two large plates (122) and the through holes on the small plate (222).

6. An adjustable hinge as claimed in any one of claims 1, 2, 3, 4 and 5, characterized in that: The right shell (21) comprises a right outer shell (211) and a right bracket (212); the right outer shell (211) is provided with a cavity for accommodating the right bracket (212); each end of the right outer shell (211) comprises a right mounting plate (2111) extending horizontally; the right bracket (212) comprises a right bottom plate (2121); each end of the right bottom plate (2121) comprises a right side plate (2122) extending upward from the end of the right bottom plate (2121); each end of the two right side plates (2122) comprises a right flange extending horizontally. The two right mounting plates (2111) each have a stepped surface at a position close to the cavity, and both of the stepped surfaces have a right threaded hole (2112). The two stepped surfaces are each used to accommodate the two right flange plates (2123). The two right flange plates (2123) each have a right through hole (2124), and a screw can be passed through the right through hole (2124) and screwed into the right threaded hole (2112). The two right side plates (2122) are provided with an upper right through hole (2125) and a lower right through hole (2126) from top to bottom in a mirror image of each other. The specific manner in which the large shaft portion (121) is hingedly connected to the right housing (21) is as follows: the large shaft portion (121) has a through hole, a right fixed shaft (20) passes through the through hole, and two ends of the right fixed shaft (20) are respectively embedded in the two upper right through holes (2125); The specific manner in which the functional shaft (23) capable of storing and releasing energy is arranged inside the right shell (21) is as follows: one end of the functional shaft (23) is fixedly connected to one of the lower right through holes (2126), and the other end of the functional shaft (23) is rollingly connected to another lower right through hole (2126).

7. An adjustable hinge according to claim 6, characterized in that: The right bracket (212) further comprises two side walls (2128) extending upward from both sides of the right bottom plate (2121).

8. An adjustable hinge according to claim 6, characterized in that: A fastening hole (2114) is respectively arranged beside the two right threaded holes (2112), and a fastening screw hole (2127) is respectively arranged on the two right flange plates (2123), and a screw can be passed through the fastening screw hole (2127) and then screwed to the fastening hole (2114).

9. An adjustable hinge according to claim 8, characterized in that: The specific manner in which a screw can be passed through the left through hole (1124) and screwed into the left threaded hole (1112) is as follows: the two left through holes (1124) are long, inwardly recessed left step holes, the screw is used to pass through the left through hole (1124) and screwed into the left threaded hole (1112), and the left large bracket (112) is accommodated in the cavity of the left shell (111) in a manner that there is a gap with the cavity of the left shell (111) in the length direction; The specific method of passing a screw through the right through hole (2124) and screwing it into the right threaded hole (2112) is as follows: the two right through holes (2124) are right step holes recessed inward, the heads of the step screws are embedded in the right through holes (2124), the step screws and the right step holes form a matching structure that is rotationally movable and axially synchronously movable, and the step screws pass through the right through holes (2124) and are screwed into the right threaded hole (2112).

10. The adjustable hinge according to claim 8, characterized in that: The specific method of passing the screw through the left through hole (1124) and screwing into the left threaded hole (1112) is as follows: the two left through holes (1124) are left step holes that are recessed inwards, the heads of the step screws are embedded in the left through holes (1124), the step screws and the left through holes (1124) form a matching structure that is rotationally movable and axially synchronously movable, and the step screws pass through the left through holes (1124) and are screwed into the left threaded hole (1112); The specific method of passing a screw through the right through hole (2124) and screwing it into the right threaded hole (2112) is as follows: the two right through holes (2124) are long inwardly recessed right step holes, the screw (14) is used to pass through the right through hole (2124) and screw it into the right threaded hole (2112), and the right bracket (212) is accommodated in the cavity of the right shell (211) in a manner that there is a gap with the cavity of the right shell (211) in the length direction.

11. The adjustable hinge according to claim 8, characterized in that: The functional shaft (23) and the small shaft portion (221) are hingedly connected in the following specific manner: the functional shaft (23) comprises an outer sleeve (231), and rocker arms (232) with holes are respectively arranged at both ends of the outer sleeve (231), and the small shaft portion (221) has a through hole, and a driving shaft (70) is used to pass through the through hole of the small shaft portion (221) and the rocker arm (232) with holes.

12. The adjustable hinge according to claim 11, characterized in that: The structure of the functional shaft (23) is specifically as follows: the outer sleeve (231) is in the shape of a circular tube as a whole; an upper cover (81) with an inner hole is fixedly embedded in the inner cavity of the upper tube opening of the outer sleeve (231); a central shaft (9) is passed through the inner hole of the upper cover (81); the upper end of the central shaft (9) protrudes from the upper tube opening of the outer sleeve; a flange (91) is provided on the upper middle column of the central shaft (9); the central shaft (9) and the upper cover (81) are connected to each other. ), a rolling bearing (10) is arranged between the inner wall of the flange (91), a plurality of steel balls are arranged between the upper end surface of the flange (91) and the lower end surface of the upper cover (81), a piston (82) is embedded in the lower inner cavity of the outer sleeve (231), the piston (82) is cylindrical, the lower column of the central shaft (9) is inserted into the inner hole of the piston (82), and the central shaft (9) and the piston (82) form an axial sliding connection and synchronous rotation matching structure, The cylinder body of the piston (82) is symmetrically provided with two spiral grooves (821), the transverse axis (92) passes through the two spiral grooves (821) on the piston, and the two ends of the transverse axis (92) are embedded in two transverse axis embedding holes (61) symmetrically opened on the outer sleeve (231). The column body of the central axis (9) located between the lower end surface of the flange (91) and the upper end surface of the cylinder body of the piston (82) is sleeved with a pressure spring (94), and the inner cavity of the lower pipe opening of the outer sleeve (231) is fixedly embedded with a lower cover (83) with an inner hole, and the reduced diameter portion (831) of the lower cover (83) protrudes from the lower pipe opening of the outer sleeve (231).

13. An adjustable hinge according to claim 12, characterized in that: The spiral chute (821) comprises an inclined section inclined with respect to the axis of the central axis (9) and a horizontal section perpendicular to the axis of the central axis (9).

14. The adjustable hinge according to claim 12, characterized in that: The specific method of fixedly connecting one end of the functional shaft (23) to one of the lower right through holes (2126) is as follows: the upper end of the central shaft (9) protruding from the upper pipe opening of the outer sleeve (231) is fixedly connected to one of the lower right through holes (2126) via a connecting sleeve; The specific manner in which the other end of the functional shaft (23) is rollingly connected to the other lower right through hole (2126) is that the reduced diameter portion (831) of the lower cover (83) is rollingly connected to the other lower right through hole via a rolling bearing.

15. An adjustable hinge according to claim 14, characterized in that: The functional shaft (23) also includes a hydraulic buffer mechanism.

16. An adjustable hinge according to claim 15, characterized in that: The specific structure of the hydraulic buffer mechanism is as follows: a one-way valve (822) is arranged at the bottom of the cylinder of the piston (82); a first sealing ring (62) is arranged between the outer wall of the upper cover (81) and the inner wall of the outer sleeve (231); a second sealing ring (63) is arranged between the inner hole wall of the upper cover (81) and the outer part of the column of the central axis (9); the column of the transverse axis (92) is sleeved with a second sliding sleeve (84) in the shape of a circular tube; the outer tube body of the outer sleeve (231) is sleeved with an annular sealing sleeve (64); the sealing sleeve (64) covers the two transverse axis embedded holes (61); an upper sealing ring (65) and a lower sealing ring (66) are arranged between the sealing sleeve (64) and the outer sleeve (231); the upper sealing ring (65) is located above the transverse axis (92); and the lower sealing ring (66) is located below the transverse axis (92). Below the horizontal axis (92), a third sealing ring (67) is arranged between the outer wall of the lower cover (83) and the inner wall of the outer sleeve; a columnar speed regulating oil needle (85) is screwed onto the inner hole of the lower cover; the upper column of the speed regulating oil needle (85) extends into the inner hole of the cylinder bottom of the piston (82); a fourth sealing ring (68) is arranged between the outer part of the lower column of the speed regulating oil needle (85) and the inner hole wall of the lower cover (83); a fifth sealing ring (69) is arranged between the lower part of the outer wall of the cylinder of the piston (82) and the inner wall of the outer sleeve (231); the space between the lower end surface of the one-way valve (822) and the inner end surface of the lower cover (83) is a pressure oil chamber (600); and the space between the upper end surface of the one-way valve (822) and the inner end surface of the upper cover (81) is an oil storage chamber (601).

17. The adjustable hinge according to claim 15, characterized in that: The functional shaft further comprises a speed regulating screw (3) for adjusting the flow speed of the hydraulic oil in the functional shaft (23); a longitudinal hole (201) perpendicular to the axial direction of the functional shaft (23) is provided on a plate at one end of the right housing (211); a transverse hole (202) consistent with the axial direction of the functional shaft (23) is provided on a side wall at the same end of the right housing (211); the transverse hole (202) and the longitudinal hole (201) are interlaced and connected; one end of the speed regulating screw (3) is a needle rod portion (301) in a variable diameter shape; the other end of the speed regulating screw (3) is a driving portion having a first tooth (302) provided on a column body; a thread (303) meshing with a first thread (101) on an inner wall of the lower cover (83) of the functional shaft (23) is provided in a middle section of the speed regulating screw (3); The needle rod portion (301) extends into the speed regulating valve hole (102) on the piston (82); the driving portion is arranged outside the functional shaft (23) and extends into the transverse hole (202) on the right housing (211); the longitudinal hole (201) is used to extend into the driving member (4); and the driving member (4) is provided with an engaging portion (401) that engages with the first tooth (302).

18. An adjustable hinge according to claim 17, characterized in that: The needle rod portion (301) of the speed regulating screw (3), the middle section of the speed regulating screw (3) and the driving portion are of a separate type.

19. The adjustable hinge according to claim 17, characterized in that: The driving member (4) is cylindrical in shape as a whole, and comprises an upper end portion provided with a recess (402), a middle column body provided with a meshing portion (401), and the meshing portion (401) is in a threaded shape.

20. An adjustable hinge according to claim 19, characterized in that: The lower section of the driving member (4) is a lower column shaft having a diameter smaller than that of the middle column shaft, a step surface (403) is formed between the middle column shaft and the lower column shaft, and the lower column shaft is used to pass through the longitudinal hole (201) and expose the lower bottom surface of the right housing (211), and a gasket (404) is installed on the exposed portion.

21. The adjustable hinge according to claim 17, characterized in that: The longitudinal hole (201) is a non-through hole, a retaining spring (2011) is arranged on the upper part of the longitudinal hole (201), and the driving member (4) can move axially in the longitudinal hole (201).

22. The adjustable hinge according to claim 19, characterized in that: The transverse hole (202) passes through the side wall of the same end of the right housing (211).

23. The adjustable hinge according to claim 17, characterized in that: The driving member (4) is in the shape of a flat strip as a whole, and comprises a handle portion (405) and a column body provided with a meshing portion (401), wherein the meshing portion (401) is in the shape of teeth.

24. An adjustable hinge according to claim 23, characterized in that: The longitudinal hole (201) penetrates the plate at one end of the right shell (211), and the transverse hole (202) penetrates the plate at the same end of the right shell (211).

25. An adjustable hinge according to any one of claims 17 to 24, characterized in that: A third sliding sleeve (86) is fixedly embedded at the end of the lower cover (83), and the speed regulating screw (3) passes through the third sliding sleeve (86).

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