WO2022040960A1

WO2022040960A1 - Hidden hinge

Info

Publication number: WO2022040960A1
Application number: PCT/CN2020/111263
Authority: WO
Inventors: 伍肇坚
Original assignee: 肇庆市高要区兆高金属科技有限公司
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2022-03-03
Also published as: JP3239524U; KR20230000819U; DE212020000537U1

Abstract

A hidden hinge comprises a left housing (11), a left support arm (12), a left functional shaft (13), a right housing (21), a right support arm (22), and a right functional shaft (23). Rotation of the right support arm (22) enables the left functional shaft (13) to store energy, and the left functional shaft (13) releases the energy to reset the right support arm (22). Rotation of the left support arm (12) enables the right functional shaft (23) to store energy, and the right functional shaft (23) releases the energy to reset the left support arm (12).

Description

a hidden hinge

technical field

The utility model relates to the field of door and window hardware accessories, in particular to a hinge.

Background technique

At present, the installation of the door leaf requires the use of hinges. 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 the effect of automatic hydraulic buffer closing, you need to install a hidden hinge It is extremely inconvenient for the door handle. After the ordinary multi-functional hydraulic hinge is installed, the hinge tube is exposed and bulky, which will affect the overall appearance of the door leaf, and it is not easy to install and maintain. The above problems bring a lot of inconvenience to users.

SUMMARY OF THE INVENTION

The embodiment of the present utility model provides a hidden hinge, using the technical solution provided by this embodiment, to solve the trouble of adding a door closer if the door leaf on the door and window needs to realize the effect of automatic hydraulic buffer closing, and the common hydraulic hinge The unsightly problem of the exposed page tube is easy to manufacture, firm and reliable, easy to replace and maintain, and can meet the needs of modern social life.

The purpose of the embodiment of the present utility model is achieved through the following technical solutions:

A hidden hinge is provided, comprising: a left casing 11, a left support arm 12, a left functional shaft 13, a right casing 21, a right support arm 22, and a right functional shaft 23. The left support arm 12 includes a left shaft portion 121 and a A curved left plate 122 extending perpendicular to the axial direction of the left shaft portion 121, the right arm 22 includes a right shaft portion 221 and a curved right plate 222 extending perpendicular to the axial direction of the right shaft 221, the left shaft 121 and When the right shaft portion 221 is parallel, the left plate 122 and the right plate 222 are staggered and complementary, the middle portion of the left plate 122 and the middle portion of the right plate 222 are hinged, the left casing 11 is connected with the left shaft portion 121, and the right casing 21 is connected with the right shaft portion. 221 is connected, the left functional shaft 13 capable of storing and discharging energy is arranged inside the left casing 11, the left functional shaft 13 is hinged with the end of the right plate 222, and the right casing 21 is provided with a right function capable of storing and discharging energy. The shaft 23, the right function shaft 23 is hinged with the end of the left plate 122, the rotation of the right arm 22 can make the left function shaft 13 store energy, the discharge of the left function shaft 13 can make the right arm 22 reset, the left arm 12 The rotation of the right function shaft 23 can store energy, and the discharge of the right function shaft 23 can cause the left support arm 12 to reset.

Further, the specific manner in which the middle part of the left plate 122 is hinged with the middle part of the right plate 222 is as follows: the middle part of the left plate 122 has a through hole in the middle part of the left plate, and the middle part of the right plate 222 has a through hole in the middle part of the right plate. When the plates 222 are staggered and complementary, a central axis 1 is used to pass through the through hole in the middle of the left plate and the through hole in the middle of the right plate.

Further, the left housing 11 includes a left housing 111 and a left bracket 112, the left housing 111 is provided with a cavity for accommodating the left bracket 112, the left housing 111 has a left mounting plate 1111 extending out from each end, and the left bracket 112 includes a left bottom plate 1121, the two ends of the left bottom plate 1121 each have a left side plate 1122 extending upward from the end of the left bottom plate 1121, and the ends of the two left side plates 1122 each have a left flange plate 1123 extending horizontally. Each of the plates 1111 has a stepped surface near the cavity, and both stepped surfaces have left threaded holes 1112. The two stepped surfaces are respectively used to accommodate two left flange plates 1123 on the left bracket 112, two left flange plates. Each of 1123 has a left through hole 1124, and the two left side plates 1122 are mirror images of each other with an upper left through hole 1125 and a lower left through hole 1126 from top to bottom;

The specific way of connecting the left housing 11 and the left shaft portion 121 is as follows: the left shaft portion 121 contains a left shaft portion through hole, a left fixed shaft 2 is used to pass through the left shaft portion through hole, and both ends of the left fixed shaft 2 are embedded in the left shaft portion. Two upper left through holes 1125;

The specific manner of arranging the left functional shaft 13 capable of storing and discharging energy inside the left casing 11 is as follows: one end of the left functional shaft 13 is fixedly connected to one of the lower left through holes 1126 , and the other end of the left functional shaft 13 is connected to the other lower left through hole 1126 . Holes 1126 are rolling connection.

Further, the right casing 21 includes a right casing 211 and a right bracket 212, the right casing 211 is provided with a cavity for accommodating the right bracket 212, and the two ends of the right casing 211 each have a right mounting plate 2111 extending out, and 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, and the ends of the two right side plates 2122 each have a right flange plate 2123 extending horizontally, and the two right side plates are installed Each of the plates 2111 has a stepped surface near the cavity, and both stepped surfaces have right threaded holes 2112. The two stepped surfaces are respectively used for accommodating two right flange plates 2123 on the right bracket 212, and two right flange plates. Each 2123 has a right through hole, and the two right side plates 2122 are mirror images of each other with a right upper through hole 2125 and a right lower through hole 2126 from top to bottom;

The specific way of connecting the right housing 21 and the right shaft portion 221 is as follows: the right shaft portion 221 includes a right shaft portion through hole, a right fixed shaft 3 is passed through the right shaft portion through hole, and both ends of the right fixed shaft 3 are embedded in the right shaft portion. Two upper right through holes 2125;

The specific way of arranging the right functional shaft 23 capable of storing and discharging energy inside the right casing 21 is as follows: one end of the right functional shaft 23 is fixedly connected to one of the lower right through holes 2126, and the other end of the right functional shaft 23 is connected to the other right through hole 2126. The lower through holes 2126 are rolling connection.

Further, the two left through holes 1124 are elongated inwardly recessed left stepped holes. The screws 14 are used to pass through the left stepped holes and screw into the left threaded holes 1112. It is accommodated in the cavity of the left housing 111 in a way that there is a gap in the direction;

The two right through holes 2124 are inwardly recessed right stepped holes. The head of the stepped screw 24 is embedded in the right stepped hole. The stepped screw 24 and the right stepped hole form a matching structure that is rotationally movably connected and moves synchronously in the axial direction. 24 is screwed into the right threaded hole 2112 through the right stepped hole.

Further, the two left through holes 1124 are inwardly recessed left stepped holes, the left stepped holes are embedded with the heads of the stepped screws 24, and the stepped screws 24 and the left stepped holes form a matching structure of rotationally active connection and axial synchronous movement, The stepped screw 24 passes through the right stepped hole and is screwed into the left threaded hole 1112;

The two right through holes 2124 are elongated inwardly recessed right stepped holes. The screws 14 are used to pass through the right stepped holes and screw into the right threaded holes 2112. The right bracket 212 is connected to the cavity of the right housing 211 in the length direction. It is accommodated in the cavity of the right housing 211 with a gap.

Further, the specific manner in which the left functional shaft 13 is hinged with the end of the right plate 222 is as follows: the left functional shaft 13 includes an outer sleeve 6, the two ends of the outer sleeve 6 are provided with rocker arms 7 with holes, and the end of the right plate 222 is provided with There is a through hole at the end of the right plate, and a left drive shaft 4 is used to pass through the through hole at the end of the right plate and the rocker arm 7 with a hole;

The specific manner in which the right functional shaft 23 is hinged with the end of the left plate 122 is as follows: the right functional shaft 23 includes an outer sleeve 6, and both ends of the outer sleeve 6 are provided with rocker arms 7 with holes, and the end of the left plate 122 is provided with a left The end of the plate passes through the hole, and a right drive shaft 5 passes through the through hole at the end of the left plate and the rocker arm 7 with a hole.

Further, the structure of the left functional shaft 13 and/or the right functional shaft 23 is specifically: the outer sleeve 6 is in the shape of a circular tube as a whole, and the inner cavity of the upper nozzle of the outer sleeve 6 is fixedly embedded with the upper cover 81 of the inner hole, and the upper sealing The inner hole of the cover 81 is fitted with the central shaft 9, the upper end of the central shaft 9 protrudes from the upper nozzle of the outer sleeve, the upper and middle column body of the central shaft is provided with a flange 91, and the central shaft 9 is connected to the inner wall of the upper cover 81. A rolling bearing 10 is arranged between the two, a plurality of steel balls are arranged between the upper end face of the flange 91 and the lower end face of the upper cover 81, a piston 82 is embedded in the lower inner cavity of the outer sleeve 6, the piston 82 is cylindrical, and the central shaft 9 The lower cylinder of the piston 82 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 a synchronous rotation matching structure. Passing through the two helical sliding grooves 821 on the piston, the two ends of the transverse shaft 92 are embedded in the two transverse shaft embedding holes 61 symmetrically opened on the outer sleeve 6, and the central shaft 9 is located at the lower end of the flange 91. The cylinder body between the upper and end surfaces of the cylinder of the piston 82 is sheathed with a pressure spring 94, the inner cavity of the lower nozzle of the outer sleeve 6 is fixedly embedded with the lower cover 83 of the inner hole, and the diameter-reduced portion 831 of the lower cover 83 is protruding from the lower cover 83. The lower nozzle of the outer casing 6.

Further, the spiral chute 821 includes an inclined section inclined to the axis of the central shaft 9 and a horizontal section perpendicular to the axis of the central shaft (9).

Further, the specific manner in which one end of the left functional shaft 13 is fixedly connected to one of the left lower through holes 1126 is: the upper end of the central shaft 9 protruding from the upper nozzle of the outer sleeve 6 is fixedly connected to one of the left lower through holes 1126 through a connecting sleeve;

The specific manner of rolling connection between the other end of the left functional shaft 13 and the other lower left through hole 1126 is as follows: the diameter-reduced portion 831 of the lower cover 83 is connected in a rolling connection with the other lower left through hole 1126 through a rolling bearing;

One end of the right functional shaft 23 is fixedly connected to one of the lower right through holes 2126 in the following manner: the upper end of the central shaft 9 protruding from the upper nozzle of the outer sleeve 6 is fixedly connected to one of the lower right through holes 2126 through a connecting sleeve;

The specific manner of rolling connection between the other end of the right functional shaft 23 and the other lower right through hole 2126 is as follows: the reduced diameter portion 831 of the lower cover 83 is in rolling connection with the other lower right through hole through a rolling bearing.

Further, the left functional shaft 13 and/or the right functional shaft 23 also include a hydraulic buffer mechanism.

Further, the specific structure of the hydraulic buffer mechanism is: a one-way valve 822 is provided at the bottom of the cylinder 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 6, and the inner wall of the upper cover 81 is provided with a first sealing ring 62. A second sealing ring 63 is arranged between the hole wall and the outside of the cylindrical body of the central shaft 9, the cylindrical body of the horizontal axis 92 is fitted with a circular tubular sliding sleeve 84, and the outer casing of the outer casing 6 is fitted with a ring-shaped sealing sleeve 64, 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 6, the upper sealing ring 65 is located above the transverse shaft 92, and the lower sealing ring 66 Located below the horizontal shaft 92, a third sealing ring 67 is arranged between the outer wall of the lower cover 83 and the inner wall of the outer casing, and the inner hole of the lower cover is screwed with a cylindrical speed regulating oil needle 85, and the speed regulating oil needle 85 The upper column of the piston 82 extends into the inner hole of the cylinder bottom of the piston 82, and a fourth sealing ring 68 is arranged between the outside 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 inner walls of the outer sleeve 6 , the space between the lower end face of the check valve 822 and the inner end face of the lower cover 83 is the pressure oil chamber 600 , and the upper end face of the check valve 822 reaches the upper cover The space between the inner end faces of 81 is the oil storage cavity 601 .

Using the technical solution created by the present invention, the left and right shells are connected by two mutually engaging support arms, the left and right shells can move relatively around the central axis embedded in the middle of the support arms, and the left and right shells are composed of shells, brackets, The fixed shaft, the functional shaft and the drive shaft are composed of a box-shaped shell and the inner cavity is embedded with a bracket that sinks in the middle and has flange plates on both sides. The two are connected by screws and the like. The side plates on both sides of the bracket are set up and down relative to each other. Two pairs of through holes, the upper through hole is embedded with both ends of the fixed shaft, one side of the lower through hole is fixedly connected with the function shaft, and the other side is rolling connection. The middle parts of the two arms are engaged with each other, and the central shaft passes through the through hole in the middle of the two to make the two connected in shape. The two arms are connected to the middle shaft of the fixed shaft through the through hole at one end, and the other end is sleeved with the drive shaft and the functional shaft. The rocker arm connection with holes is convenient for production and manufacture, the product is beautiful, the installation is simple, and the structure is reasonable.

Description of drawings

Fig. 1 is the explosion schematic diagram of the embodiment of the present invention;

Fig. 2 is the side schematic diagram of the hinge closed state of the embodiment of the present invention;

Fig. 3 is the side schematic diagram of the hinge opening half-way state of the embodiment of the present invention;

4 is a schematic side view of a state where all the hinges of the embodiment of the present invention are open;

Fig. 5 is the sectional structure schematic diagram of the hinge closed state of Fig. 2;

Fig. 6 is the sectional structure schematic diagram of the hinge opening state of Fig. 4;

Fig. 7 is the schematic diagram of the left functional axis or the right functional axis in the present utility model;

8 and 9 are schematic diagrams of two states of compression and energy release of the pressure spring in the present invention.

detailed description

In order to make the purpose, technical solutions, and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. Please refer to Figure 1 to Figure 9 to read.

Example 1:

Referring to Figure 1, Figure 2, Figure 5, Figure 6,

A hidden hinge is provided, comprising: a left casing 11, a left supporting arm 12, a left functional shaft 13, a right casing 21, a right supporting arm 22, and a right functional shaft 23, and the left supporting arm 12 includes a left shaft portion 121 and A curved left plate 122 extending in a direction perpendicular to the axis of the left shaft portion 121, the right arm 22 includes a right shaft portion 221 and a curved right plate 222 extending in a direction perpendicular to the axis of the right shaft portion 221. When 121 is parallel to the right shaft portion 221, the left plate 122 and the right plate 222 are staggered and complementary, the middle of the left plate 122 is hinged with the middle of the right plate 222, the left shell 11 is connected with the left shaft portion 121, and the right shell 21 is connected with the right plate 222. The shaft portion 221 is connected, and the left functional shaft 13 capable of storing and discharging energy is arranged inside the left casing 11. The left functional shaft 13 is hinged with the end of the right plate 222, and the interior of the right casing 21 is provided with a function that can store and discharge energy. The right function shaft 23, the right function shaft 23 is hinged with the end of the left plate 122, the rotation of the right arm 22 can make the left function shaft 13 store energy, the discharge of the left function shaft 13 can make the right arm 22 reset, and the left arm 22 can be reset. The rotation of the arm 12 can make the right functional shaft 23 store energy, and the discharge of the right functional shaft 23 can cause the left support arm 12 to reset.

In this embodiment, the number of left plates may be more than one, and the number of right plates may also be more than one.

One end of the right arm is linked with the left functional shaft, the other end of the right arm, that is, the right shaft is hinged with the right housing, one end of the left arm is linked with the right functional shaft, and the The other end, the left shaft part, is hinged with the left shell, and the middle of the left and right arms is hinged together. Since the functional shaft has the function of storing and discharging energy, the space between the functional shaft and the supporting arm is hinged. Control each other, thereby controlling the movement of the hinge. Simple structure, beautiful appearance and convenient installation.

This method of using the central axis to pass through the through hole has better connection strength and more convenient production. Of course, there is no need for the penetration method. It is only a slot that cannot be penetrated by several plates, and one shaft extends into the two slots. Can be connected to achieve the effect of use. The articulations between the components in the present invention can be interchanged in this way.

This way of installing the bracket in the cavity in the casing can well hide the components in the casing, the appearance is simple and beautiful, the installation is more convenient, and it is convenient to protect the components.

The specific manner of arranging the left functional shaft 13 capable of storing and discharging energy inside the left casing 11 is as follows: one end of the left functional shaft 13 is fixedly connected to one of the lower left through holes 1126 , and the other end of the left functional shaft 13 is connected to the other lower left through hole 1126 . Holes 1126 are rolling connection. Fixed connections can be connected by connecting sleeves, and rolling connections can be connected by rolling bearings.

One end of the functional shaft is fixedly connected to the housing, and the other end is movably connected to the housing, so that the discharge of the functional shaft can effectively transmit kinetic energy to other components, and the movement of other components can also cause the functional shaft to store energy. .

The specific way of arranging the right functional shaft 23 capable of storing and discharging energy inside the right casing 21 is as follows: one end of the right functional shaft 23 is fixedly connected to one of the lower right through holes 2126, and the other end of the right functional shaft 23 is connected to the other right through hole 2126. The lower through holes 2126 are rolling connection. Fixed connections can be connected by connecting sleeves, and rolling connections can be connected by rolling bearings.

Embodiment 2:

Alternatively, the two left through holes 1124 are inwardly recessed left stepped holes, the left stepped holes are embedded with the heads of the stepped screws 24, and the stepped screws 24 and the left stepped holes form a matching structure of rotationally movable connection and axial synchronous movement, The stepped screw 24 passes through the right stepped hole and is screwed into the left threaded hole 1112;

In the above embodiment, the left mounting plate and the right mounting plate can be fixedly connected to the door frame or door leaf through screws. The hinge's up and down, left and right adjustable functions can be mirrored, that is to say, the left casing can be set to move left and right, the right casing can be set to move up and down, or the right casing can be set to move left and right, and the left casing can be set to move up and down Function. The general purpose is to set up and down movement functions on one side of the casing, and set the left and right movement functions on the other side of the casing. As mentioned above, for example, since the left stepped hole is an elongated inwardly concave hole, and since the left bracket 112 is accommodated in the cavity of the left housing 111 in such a manner that there is a gap with the cavity of the left housing 111 in the length direction , then it means that the left bracket can move lengthwise in the cavity of the left housing, and the screw can still be screwed into the left threaded hole, and the left step hole is recessed inward means that the screw head can sink into the left step The holes do not need to be exposed. On the one hand, it is beautiful. On the other hand, the protruding screw head will not affect the smoothness of the closing of the two casings and the distance between the closed casings. Loosening the screw can move the relative position of the left bracket relative to the left shell. When the left shell is higher than the right shell in the length direction, it means that the door leaf connected to the left shell is raised in the vertical direction, and the left bracket can be moved toward the left shell. Move down and keep the same relative position with the right bracket, the door frame connected to the right shell where the right bracket is located does not need to be slotted to install the loose-leaf, so that the door leaf can be adjusted up and down, and the upper and lower door gaps between the door leaf and the door frame can be changed.

The display of the left and right adjustment function of the door leaf is as follows: since the step screw forms a rotationally active connection with the right step hole and a matching structure of axial synchronous movement, the right bracket can be changed by adjusting the screwing depth of the rod by rotating the step screw. The depth of the inner cavity of the right shell is embedded, so that the relative distance between the left shell and the right shell can be changed, and the left and right adjustment of the door leaf can be realized, and the size of the left and right door gaps between the door leaf and the door frame can be changed.

The advantages of realizing the up and down adjustment of the door leaf to change the size of the upper and lower door gaps between the door leaf and the door frame and the left and right adjustment of the door leaf to change the size of the left and right door gaps between the door leaf and the door frame are that the user does not need to adjust the door leaf or the door frame for such adjustment. Additional slotting on the door frame and additional service charges associated with it can be done by yourself or at first installation.

Further, the structure of the left functional shaft 13 and/or the right functional shaft 23 is specifically: the outer sleeve 6 is in the shape of a circular tube as a whole, and the inner cavity of the upper nozzle of the outer sleeve 6 is fixedly embedded with a cylindrical upper cover 81, The inner hole of the cover 81 is fitted with the central shaft 9, the upper end of the central shaft 9 protrudes from the upper nozzle of the outer casing, the upper and middle column body of the central shaft is provided with a flange 91, the central shaft 9 and the inner wall of the upper cover 81 A rolling bearing 10 is arranged between the two, a plurality of steel balls are arranged between the upper end face of the flange 91 and the lower end face of the upper cover 81, a piston 82 is embedded in the inner cavity of the lower part of the outer sleeve 6, the piston 82 is cylindrical, and the central axis The lower cylinder of the piston 82 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 a synchronous rotation matching structure. 92 passes through the two helical sliding grooves 821 on the piston, the two ends of the transverse shaft 92 are embedded in the two transverse shaft embedding holes 61 symmetrically opened on the outer sleeve 6, and the central shaft 9 is located at the lower end of the flange 91. The cylinder body between the upper and end faces of the cylinder of the piston 82 is sheathed with a pressure spring 94, the inner cavity of the lower nozzle of the outer sleeve 6 is fixedly embedded with a cylindrical lower cover 83, and the reduced diameter portion 831 of the lower cover 83 is highlighted at the lower orifice of the outer casing 6.

Further, the specific manner in which one end of the left functional shaft 13 is fixedly connected to one of the left lower through holes 1126 is: the upper end of the central shaft 9 protruding from the upper nozzle of the outer sleeve 6 is fixedly connected to one of the left lower through holes 1126 through a connecting sleeve; The specific manner of rolling connection between the other end of the left functional shaft 13 and the other lower left through hole 1126 is as follows: the diameter-reduced portion 831 of the lower cover 83 is connected in a rolling connection with the other lower left through hole 1126 through a rolling bearing;

Embodiment three:

Further, the specific structure of the hydraulic buffer mechanism is: a one-way valve 822 is provided at the bottom of the cylinder 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 6, and the inner wall of the upper cover 81 is provided with a first sealing ring 62. A second sealing ring 63 is arranged between the hole wall and the outside of the cylindrical body of the central shaft 9, the cylindrical body of the horizontal axis 92 is fitted with a circular tubular sliding sleeve 84, and the outer casing of the outer casing 6 is fitted with a ring-shaped sealing sleeve 64, 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 6, the upper sealing ring 65 is located above the transverse shaft 92, and the lower sealing ring 66 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 6, and the inner hole of the lower cover is screwed with a cylindrical speed regulating oil needle 85. The speed regulating oil needle The upper column body of 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 body of the speed regulating oil needle 85 and the inner hole wall of the lower cover 83, and the outer wall of the cylinder body of the piston 82 is below the outer wall of the cylinder body. A fifth sealing ring 69 is arranged between the inner wall of the outer sleeve 6 and the lower end face of the check valve 822 to the inner end face of the lower cover 83 is the pressure oil chamber 600 , and the upper end face of the check valve 822 reaches the upper seal. The space between the inner end faces of the cover 81 is the oil storage chamber 601 .

One side of the hidden hinge is embedded in the door frame, and the other side is embedded in the door leaf. When the door leaf is closed, the internal section of the hinge is shown in Figure 4; The end of the shaft is close to the bottom of the left and right brackets, the connected functional shafts are in the energy-discharging state, and the internal piston is in the position close to the lower cover. When the user opens the door, as shown in Figure 5, the left and right casings are along the central axis. Relatively separated, the left and right support arms hinged by the central axis, one end is sleeved on the fixed shaft of the bracket, the position remains unchanged but only rotates around it, and the other end is pulled out, and the drive shaft is connected to the arm with a hole, so that the When the rocker arm with holes and the outer sleeve of the functional shaft rotate outward along the axis of the functional shaft, the horizontal shaft whose heads at both ends are embedded in the outer sleeve of the functional shaft also rotates along with it. When the axial direction moves upward, the axial direction of the piston moves upward to compress the pressure spring for energy storage. The valve body of the one-way valve leaves the bottom of the piston cylinder. The valve flows to the pressurized oil chamber, as shown in Figure 6. When the external force for opening the door is removed, the pressure spring releases the pressure to push the piston forward, and the horizontal shaft rotates under the action of the inclined section of the piston helical chute, which drives the outer casing of the functional shaft and the rocker arm with holes to reset and rotate, and the rocker with holes rotates. The arm pulls the support arm inward through the drive shaft to reset to realize automatic closing. When the piston is reset and moves downward, the valve body of the one-way valve is fitted with the piston to form a seal, so that the hydraulic oil in the pressure oil chamber passes through the speed regulating oil needle. The gap between the oil passage hole and the oil passage hole at the bottom of the piston cylinder flows to the oil storage chamber. By adjusting the insertion amount of the speed regulating oil needle to change the gap between the speed regulating oil needle and the oil passage hole of the piston, the hydraulic oil can be controlled under the pressure of the oil chamber. The flow to the oil storage chamber controls the downward speed of the piston to achieve adjustable buffer closing.

When the horizontal shaft slides to the horizontal section of the helical chute of the piston, the pressure released by the pressure spring cannot drive the horizontal shaft without the piston moving axially, so the hinge can stay in this situation, and the bayonet and the horizontal section are opened in the horizontal section. The shaft is engaged, and the hinge also produces a door suction function at this angle.

A kind of hidden hinge provided by the embodiments of the present utility model has been introduced in detail above. The principles and implementations of the present utility model are described with specific examples in this paper. The descriptions of the above embodiments are only used to help understand the utility model. At the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and application scope. In conclusion, the contents of this description should not be construed as a limits.

Claims

A hidden hinge, characterized in that it comprises: a left casing (11), a left supporting arm (12), a left functional shaft (13), a right casing (21), a right supporting arm (22), a right functional shaft (23), the left arm (12) includes a left shaft portion (121) and a left plate (122) in a curved shape extending in a direction perpendicular to the axis of the left shaft portion (121), the right arm ( 22) comprising a right shaft portion (221) and a curved right plate (222) extending in a direction perpendicular to the axis of the right shaft portion (221), the left shaft portion (121) and the right shaft portion (221) ) parallel to each other, the left plate (122) and the right plate (222) are staggered and complementary, the middle of the left plate (122) is hinged with the middle of the right plate (222), and the left shell ( 11) Connected to the left shaft portion (121), the right housing (21) is connected to the right shaft portion (221), and a left housing capable of storing and discharging energy is arranged inside the left housing (11). A functional shaft (13), the left functional shaft (13) is hinged with the end of the right plate (222), and a right functional shaft (23) capable of storing and discharging energy is arranged inside the right casing (21). ), the right function shaft (23) is hinged with the end of the left plate (122), the rotation of the right arm (22) can make the left function shaft (13) store energy, the left The discharge of the function shaft (13) can make the right support arm (22) reset, and the rotation of the left support arm (12) can make the right function shaft (23) store energy, and the right function shaft (23) The release energy of the left arm (12) causes the left arm (12) to reset.
The hidden hinge according to claim 1, characterized in that the specific manner in which the middle part of the left plate (122) is hinged with the middle part of the right plate (222) is: the left plate (122) There is a middle through hole of the left plate in the middle of the right plate (222), and a middle through hole of the right plate in the middle of the right plate (222). 1) Pass through the through hole in the middle of the left plate and the through hole in the middle of the right plate.
The hidden hinge according to claim 1 or 2, characterized in that, the left casing (11) comprises a left casing (111) and a left bracket (112), and the left casing (111) is provided with an accommodating The cavity of the left bracket (112), the two ends of the left housing (111) are respectively provided with a left mounting plate (1111) extending out, the left bracket (112) includes a left bottom plate (1121), the left Both ends of the bottom plate (1121) are respectively provided with a left side plate (1122) extending upward from the end of the left bottom plate (1121). A flange plate (1123), the two left mounting plates (1111) each have a stepped surface near the cavity, both of the stepped surfaces have left threaded holes (1112), and the two stepped surfaces Each is used to accommodate the two left flange plates (1123) on the left bracket (112), the two left flange plates (1123) each have a left through hole (1124), and the two left flange plates (1123) The left side plate (1122) is provided with an upper left through hole (1125) and a lower left through hole (1126) from top to bottom in mirror images of each other;

The specific manner in which the left housing (11) is connected to the left shaft portion (121) is as follows: the left shaft portion (121) includes a left shaft portion through-hole, and a left fixed shaft (2) passes through the left shaft portion (121). The left shaft part has a through hole, and both ends of the left fixed shaft (2) are embedded in the two upper left through holes (1125);

The specific manner of arranging the left functional shaft (13) capable of storing and discharging energy inside the left casing (11) is as follows: one end of the left functional shaft (13) is fixed to one of the lower left through holes (1126). connected, and the other end of the left functional shaft (13) is connected with the other lower left through hole (1126) in a rolling manner.
The hidden hinge according to claim 3, characterized in that, the right casing (21) comprises a right casing (211) and a right bracket (212), and the right casing (211) is provided with The cavity of the right bracket (212), the two ends of the right housing (211) are respectively provided with a right mounting plate (2111) extending out, the right bracket (212) includes a right bottom plate (2121), the right bottom plate ( 2121) each has a right side plate (2122) extending upward from the end of the right bottom plate (2121), and the ends of the two right side plates (2122) each have a right flange extending out horizontally Plate (2123), the two right mounting plates (2111) each have a stepped surface near the cavity, both of the stepped surfaces have right threaded holes (2112), and the two stepped surfaces are used for To accommodate the two right flange plates (2123) on the right bracket (212), the two right flange plates (2123) each have a right through hole, and the two right flange plates (2122) ) set the upper right through hole (2125) and the lower right through hole (2126) from top to bottom in mirror images of each other;

The specific manner in which the right housing (21) is connected to the right shaft portion (221) is as follows: the right shaft portion (221) includes a right shaft portion through hole, and a right fixed shaft (3) passes through the right shaft portion (221). The right shaft part has a through hole, and both ends of the right fixed shaft (3) are embedded in the two upper right through holes (2125);

The specific manner of arranging the right functional shaft (23) capable of storing and discharging energy inside the right housing (21) is as follows: one end of the right functional shaft (23) and one of the lower right through holes (2126) In a fixed connection, the other end of the right functional shaft (23) is connected with another right lower through hole (2126) in a rolling connection.
A hidden hinge according to claim 4, characterized in that, the two left through holes (1124) are long inwardly recessed left step holes, and the screws (14) are used to pass through the left steps and screwed into the left threaded hole (1112), the left bracket (112) is accommodated in the left housing (111) in a way that there is a gap with the cavity of the left housing (111) in the length direction in the cavity;

The two right through holes (2124) are inwardly recessed right stepped holes, the right stepped holes are embedded with the heads of the stepped screws (24), and the stepped screws (24) and the right stepped holes form a screw connection. To the mating structure of movable connection and axial synchronous movement, the stepped screw (24) passes through the right stepped hole and is screwed into the right threaded hole (2112).
The hidden hinge according to claim 4, characterized in that, the two left through holes (1124) are left stepped holes recessed inward, and the heads of the stepped screws (24) are embedded in the left stepped holes. The step screw (24) and the left step hole form a matching structure of rotationally movable connection and axial synchronous movement, and the step screw (24) passes through the right step hole and is screwed into the left thread hole(1112);

The two right through holes (2124) are long inwardly recessed right stepped holes, the screws (14) are used to pass through the right stepped holes and screw into the right threaded holes (2112), and the right bracket ( 212) is accommodated in the cavity of the right casing (211) in a manner that there is a gap with the cavity of the right casing (211) in the length direction.
A kind of hidden hinge as claimed in claim 4, is characterized in that,

The specific manner in which the left functional shaft (13) is hinged with the end of the right plate (222) is as follows: the left functional shaft (13) includes an outer sleeve (6), and two parts of the outer sleeve (6) are hinged. Each end is provided with a rocker arm (7) with holes, the end of the right plate (222) is provided with a right plate end through hole, and a left drive shaft (4) is used to pass through the right plate end through hole and all the The rocker arm with holes (7);

The specific manner in which the right functional shaft (23) is hinged with the end of the left plate (122) is as follows: the right functional shaft (23) includes an outer sleeve (6), and two parts of the outer sleeve (6) are hinged. Each end is provided with a rocker arm (7) with holes, the end of the left plate (122) is provided with a left plate end through hole, and a right drive shaft (5) is used to pass through the left plate end through hole and all the The rocker arm (7) with holes is described above.
A hidden hinge as claimed in claim 7, characterized in that, the structure of the left functional shaft (13) and/or the right functional shaft (23) is as follows: the outer sleeve (6) is in the overall shape of The upper cover (81) of the inner hole is fixedly embedded in the inner cavity of the upper nozzle of the outer sleeve (6), and the inner hole of the upper cover (81) is fitted with the central shaft (9), The upper end of the central shaft (9) protrudes from the upper nozzle of the outer sleeve, the upper and middle column body of the central shaft (9) is provided with a flange (91), and the central shaft (9) is connected to the outer casing. Rolling bearings (10) are arranged between the inner walls of the upper cover (81), and a plurality of steel balls are arranged between the upper end face of the flange (91) and the lower end face of the upper cover (81). A piston (82) is embedded in the inner cavity of the middle and lower part of the pipe (6), the piston (82) is cylindrical, and the lower cylinder of the central shaft (9) is inserted into the inner hole of the piston (82), The central shaft (9) and the piston (82) form a matching structure of axial sliding connection and synchronous rotation. The shaft (92) passes through the two spiral sliding grooves (821) on the piston, and the two ends of the horizontal shaft (92) are embedded in the two horizontal shafts symmetrically opened on the outer sleeve (6) In the embedded hole (61), a pressure spring (94) is sheathed on the cylinder body of the central shaft (9) between the lower end face of the flange (91) and the upper end face of the cylinder of the piston (82). The inner cavity of the lower nozzle of the outer sleeve (6) is fixedly fitted with a lower cover (83) with an inner hole, and the reduced diameter portion (831) of the lower cover (83) protrudes from the outer sleeve (83). 6) of the lower nozzle.
A hidden hinge according to claim 8, characterized in that, the spiral chute (821) comprises an inclined section inclined to the axis of the central shaft (9) and an inclined section relative to the central shaft (9) The horizontal segment perpendicular to the axis.
A hidden hinge according to claim 8, characterized in that, the specific manner in which one end of the left functional shaft (13) is fixedly connected to one of the lower left through holes (1126) is: the central shaft (1126) 9) The upper end of the upper nozzle protruding from the outer sleeve (6) is fixedly connected to one of the lower left through holes (1126) through a connecting sleeve;

The specific manner of rolling connection between the other end of the left functional shaft (13) and the other lower left through hole (1126) is as follows: the diameter-reduced portion (831) of the lower cover (83) is connected to the other through a rolling bearing. One of the lower left through holes (1126) is connected in a rolling manner; the specific manner in which one end of the right functional shaft (23) is fixedly connected to one of the lower right through holes (2126) is as follows: the central shaft (9) protrudes from the The upper end of the upper nozzle of the outer sleeve (6) is fixedly connected to one of the lower right through holes (2126) through a connecting sleeve;

The specific manner of rolling connection between the other end of the right functional shaft (23) and the other right lower through hole (2126) is as follows: the diameter-reduced portion (831) of the lower cover (83) is connected to the other end of the lower cover (83) through a rolling bearing. Another said lower right through hole is rolling connection.
A hidden hinge according to any one of claims 8, 9 and 10, characterized in that, the left functional shaft (13) and \ or the right functional shaft (23) further comprise a hydraulic buffer mechanism.
A hidden hinge according to claim 11, characterized in that, the specific structure of the hydraulic buffer mechanism is: a check valve (822) is arranged at the bottom of the cylinder of the piston (82), and the upper cover is provided with a check valve (822). A first sealing ring (62) is arranged between the outer wall of (81) and the inner wall of the outer sleeve (6). A second sealing ring (63) is arranged between the two, the cylindrical body of the horizontal shaft (92) is sleeved in a circular tubular sliding sleeve (84), and the outer sleeve of the outer sleeve (6) is provided with a ring-shaped sealing sleeve ( 64), the sealing sleeve (64) covers the two transverse shaft embedding holes (61), and an upper sealing ring (65) is arranged between the sealing sleeve (64) and the outer sleeve (6) and the lower sealing ring (66), the upper sealing ring (65) is located above the horizontal shaft (92), the lower sealing ring (66) is located below the horizontal shaft (92), the lower sealing ring (65) A third sealing ring (67) is arranged between the outer wall of the cover (83) and the inner wall of the outer sleeve, and the inner hole of the lower cover is screwed with a cylindrical speed regulating oil needle (85). The upper column body of the oil needle (85) extends into the inner hole of the cylinder bottom of the piston (82), the outside of the lower column body of the speed regulating oil needle (85) and the inner hole of the lower cover (83) A fourth sealing ring (68) is arranged between the walls, 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 (6), and the one-way valve (822) The space between the lower end surface of the check valve (822) and the inner end surface of the lower cover (83) is the pressure oil chamber (600). The space between the inner end faces is an oil storage cavity (601).