CN112177462B

CN112177462B - Combined hinge and hydraulic device

Info

Publication number: CN112177462B
Application number: CN201910601479.7A
Authority: CN
Inventors: 陈旺松
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2022-05-31
Anticipated expiration: 2039-07-04
Also published as: CN112177462A

Abstract

A combined hinge mainly comprises a first leaf and a second leaf which are mutually pivoted, a first sleeving part unit and a second sleeving part unit, wherein the first sleeving part unit and the second sleeving part unit are arranged between the first leaf and the second leaf in a penetrating mode. The second kit unit includes a spindle that rotates synchronously with the first sheet or the second sheet, and a hydraulic group. The hydraulic group is provided with an inner cavity filled with fluid, an outer cavity surrounding the inner cavity and communicated with the inner cavity, and a buffer piece separating the inner cavity to form an upper cavity and a lower cavity communicated with the outer cavity. When the buffering piece is compressed by the mandrel, the volume of the upper chamber is reduced, fluid flows to the lower chamber through the outer cavity by the upper chamber, buffering force for slowing down the moving speed of the buffering piece is generated, and when the mandrel releases the buffering piece, the volume of the lower chamber is reduced, and the fluid flows to the upper chamber through the flow channel by the lower chamber. Therefore, the whole assembly can be simplified, and the assembly cost can be reduced.

Description

Combined hinge and hydraulic device

Technical Field

The present invention relates to a hinge, and more particularly, to a combined hinge and a hydraulic device.

Background

A conventional combination hinge disclosed in taiwan patent No. I580856 includes a first sheet for fixing two objects, a first sleeve unit penetrating between the first sheets and rotating synchronously with the first sheets, and an oil pressure type sleeve unit. Therefore, under the condition that an external force acts on any object, the buffer effect generated by the oil pressure type external member unit is utilized to control the speed of the object during relative displacement, and the first external member unit and the oil pressure type external member unit form a hydraulic-mechanical interaction linkage design, so that the combined hinge is not limited in direction during installation, and the effects of quick opening and slow closing are achieved.

However, referring to fig. 7, 8, 9 and 11 of the patent No. I580856, regarding the hydraulic type kit unit for generating the hydraulic cushion effect, there are many components in the structure, especially the part of the needle shaft set, because the diameter width is small, there is still room for improvement in the number of components, the cost, the processing difficulty and the assembling programming.

Disclosure of Invention

The invention aims to provide a combined hinge and a hydraulic device which can simplify components, reduce component cost and greatly improve assembly simplicity.

The combined hinge of the invention is used for connecting two objects, and comprises: a sheet unit, a first sheathing unit, and a second sheathing unit.

The blade unit comprises a first blade and a second blade which are pivoted with each other and can be operated, the first blade is provided with at least one first seat pipe, and the second blade is provided with at least one second seat pipe which is arranged at intervals along an axial direction with the first seat pipe.

The first sleeve unit penetrates through the first seat tube and the second seat tube along the axis direction, and rotates synchronously with the first leaf to at least generate a blocking force.

The second sleeve unit is opposite to the first sleeve unit and penetrates in the first seat tube and the second seat tube along the axis direction, synchronously rotates with one of the first leaf and the second leaf, and comprises a mandrel with the rotation speed inversely proportional to the blocking force, and a hydraulic group, wherein the hydraulic group comprises an inner cavity filled with fluid, an outer cavity surrounding the inner cavity and communicated with the inner cavity, and a buffer part, the buffer part separates the inner cavity to form an upper cavity and a lower cavity communicated with the outer cavity, is forced to displace between a door opening position and a door closing position relative to the first sleeve unit by the mandrel and is provided with a flow channel for the fluid to flow from the lower cavity to the buffer part in one direction, and is compressed by the mandrel when the door closing position displaces to the buffer part, the volume of the upper chamber is reduced, fluid flows from the upper chamber to the lower chamber through the outer chamber, buffering force for slowing down the moving speed of the buffer piece is generated, when the buffer piece is displaced from the door closing position to the door opening position, the mandrel releases the buffer piece, the volume of the lower chamber is reduced, and the fluid flows from the lower chamber to the upper chamber through the flow channel.

In the combined hinge of the present invention, the hydraulic unit further includes an outer tube and an inner tube inserted into the outer tube, the inner tube defines the inner cavity, and defines the outer cavity with the outer tube, and has a throttle hole communicating with the outer cavity and the upper cavity, the throttle hole is used for allowing fluid to flow from the upper cavity to the outer cavity, the buffer member has a slider inserted into the inner cavity in a displaceable manner along the axial direction, and an extension section extending from the slider through the outer tube along the axial direction, and the slider has the flow channel.

In the combined hinge, the second sleeve unit further comprises a check valve group, the check valve group is provided with a valve piece capable of openably closing the flow channel of the buffer piece, and a limiting elastic element pressed between the inner tube and the valve piece, and the limiting elastic element constantly generates a biasing force for enabling the valve piece to close the flow channel.

According to the combined hinge, the sliding block of the buffer piece is provided with the abutting surface connected with the flow channel, the abutting surface can be a curved surface or a plane, the abutting surface of the valve piece matched with the curved surface is a sphere, or the abutting surface matched with the plane is a flat plate, and the valve piece is forced to abut against the abutting surface under the action of the biasing force.

In the combined hinge, the sliding block of the buffer part is provided with a plane abutting surface which is connected with the flow channel, the valve part is in a T shape, part of the valve part penetrates through the flow channel, and the other part of the valve part is forced to abut against the abutting surface.

In the combined hinge, the second sleeve unit further comprises a throttle valve group, the outer pipe is provided with an inner surface which surrounds the axis and is provided with an internal thread, the inner surface and the inner pipe define an outer cavity, the throttle valve group is provided with a throttle valve screwed in the internal thread along the axis direction, and an airtight gasket sleeved between the inner surface of the outer pipe and the throttle valve, the throttle valve is provided with a throttle rod penetrating in a throttle hole of the inner pipe, and the diameter width of the throttle rod is gradually increased from one end penetrating in the throttle hole to the other end far away from the throttle hole.

In the combined hinge of the invention, the hydraulic group of the second external member further comprises an end cover and a plug member, the end cover is connected to one end of the outer pipe and is provided with an angle setting hole extending from the top surface to the bottom surface along the axis direction, the angle setting hole is suitable for being passed by a hand tool, the throttle valve is provided with a throttle setting hole extending from the top surface along the axis direction, the throttle setting hole is suitable for adjusting the screwing depth of the throttle valve in the process of being screwed after the hand tool is embedded, and is further suitable for adjusting the speed of fluid passing through the throttle hole, the plug member is penetrated in the outer pipe and is close to the other end of the outer pipe, is in airtight contact with the inner surface of the outer pipe, and is provided with a through hole for passing through the extending section of the buffer member.

The combined hinge of the invention, the second sleeve unit further comprises a second pipe fitting for the hydraulic group to penetrate and rotate synchronously with the first leaf, an acting element for encapsulating one end of the second pipe fitting opposite to the end cover and forming linkage with the second pipe fitting, and a first return elastic element, wherein the acting element is provided with an inclined plane facing the hydraulic group and an extending hole extending from the inclined plane to one end surface opposite to the inclined plane along the axis, the mandrel and the second leaf rotate synchronously and are provided with a shaft block penetrating in the second pipe fitting, a shaft section connected with the shaft block and passing through the extending hole, and a top pin connected with the shaft block and used for pressing against the extending section of the hydraulic group, the shaft block is provided with a fit surface facing the inclined plane, when the buffer member is positioned at the door closing position, the fit surface and the inclined plane push each other and move away from each other, and the top pin is pressed against the extension section, when the buffer piece is positioned at the door opening position, the fit surface and the inclined surface are mutually fit, the top pin releases the extension section, the first reset elastic element is arranged between the hydraulic unit and the mandrel, and constantly generates a biasing force pushing the mandrel to move towards the action piece.

According to the combined hinge, the outer pipe of the hydraulic group is provided with the first external thread and the second external thread which are formed on the outer surface, the outer pipe is screwed in the second pipe fitting through the first external thread, the end cover is screwed in the second external thread, and the angle setting hole is suitable for adjusting the screwing depth of the outer pipe in the process of being screwed after the hand tool is embedded, setting the distance between the top pin of the mandrel and the extending section of the buffer piece and adjusting the angle range with the buffering force when the first blade or the second blade rotates.

The combined hinge further comprises a linkage unit, the linkage unit comprises a linkage piece which penetrates through the at least one second seat tube and synchronously rotates with the second leaf, and the linkage piece is connected to the shaft section of the mandrel and synchronously rotates with the shaft section of the mandrel.

The first sleeve unit comprises a first pipe fitting, a brake spring set penetrating in the first pipe fitting, a friction piece forced by the brake spring set and forming linkage with the first pipe fitting, and a pressing piece screwed with the first pipe fitting and pressing the brake spring set to change the resistance force, wherein the friction piece is provided with a friction curved surface facing the second sleeve unit, the connecting unit further comprises a contact piece connected to the shaft section of the mandrel, and the contact piece is used for being in friction contact with the friction curved surface to generate the resistance force.

The combined hinge comprises a first pipe fitting, a shaft rod which is arranged in the first pipe fitting in a penetrating mode and forms linkage with the linkage piece, a torsion spring surrounding the shaft rod, and an end piece which can be clamped with the first pipe fitting in a rotating mode and is used for rotating the torsion spring to change the torsion force, wherein the torsion spring is provided with two end portions connected with the end piece and the shaft rod, stores the torsion force when the first leaf or the second leaf is operated to rotate, and is used for driving the first leaf or the second leaf to rotate reversely after the torsion force is released.

In the combined hinge of the present invention, the hydraulic unit further includes a second return elastic element disposed between the buffer member and the inner tube, and the second return elastic element constantly generates a biasing force that causes the buffer member to be located at the door opening position.

The hydraulic device of the present invention includes: an outer tube, an inner tube, and a buffer.

The inner tube penetrates through the outer tube, defines an inner cavity, defines an outer cavity with the outer tube, and is provided with a throttling hole communicated with the outer cavity, and the inner cavity and the outer cavity are suitable for being filled with fluid.

The bolster district separates the inner chamber form communicate in the last cavity and the lower cavity of exocoel to have along an axis direction displaceably wear to put the slider of inner chamber, and by the slider is followed the axis direction is worn out the extension of outer tube, the slider have supply fluid one-way by the lower cavity flow direction go up the runner of cavity the bolster reverse in during the direction displacement of cavity down, go up the cavity volume and diminish, and fluid by go up the cavity warp the orifice the exocoel flow direction cavity down, and produce and slow down the buffer power of bolster moving speed the bolster reverse in during the direction displacement of last cavity, the cavity volume diminishes down, and fluid by the cavity warp down the runner flow direction goes up the cavity.

The hydraulic device also comprises a one-way valve group, wherein the one-way valve group comprises a valve piece capable of openably closing the flow channel of the buffer piece and a limiting elastic element pressed between the inner tube and the valve piece, and the limiting elastic element constantly generates a biasing force for enabling the valve piece to close the flow channel.

According to the hydraulic device, the sliding block of the buffer piece is provided with the abutting surface connected with the flow channel, the abutting surface can be a curved surface or a plane, the abutting surface of the valve piece matched with the curved surface is a sphere, or the abutting surface matched with the plane is a flat plate and is used for abutting against the abutting surface.

In the hydraulic device, the sliding block of the buffer part is provided with a plane abutting surface which is connected with the flow channel, the valve part is T-shaped, part of the valve part penetrates through the flow channel, and the other part of the valve part is used for abutting against the abutting surface.

The hydraulic device further comprises a throttle valve group, the outer pipe is provided with an inner surface with internal threads, the inner surface and the inner pipe define an outer cavity, the throttle valve group is provided with a throttle valve screwed in the internal threads, and an airtight gasket sleeved between the inner surface of the outer pipe and the throttle valve, the throttle valve is provided with a throttle rod penetrating in the throttle hole of the inner pipe, and the diameter width of the throttle rod is gradually increased from one end penetrating in the throttle hole to the other end far away from the throttle hole.

The hydraulic device comprises an end cover and a plug part, wherein the end cover is connected to one end of the outer pipe and is provided with an angle setting hole extending from a top surface to a bottom surface along the axis direction, the angle setting hole is suitable for allowing a hand tool to pass through, the throttle valve is provided with a throttle setting hole extending from the top surface along the axis direction, the throttle setting hole is suitable for adjusting the screwing depth of the throttle valve in the process of being screwed after the hand tool is embedded, and is further suitable for adjusting the speed of fluid passing through the throttle hole, the plug part penetrates through the outer pipe and is adjacent to the other end of the outer pipe, is in airtight contact with the inner surface of the outer pipe, and is provided with a through hole for allowing a mandrel of the buffer part to pass through.

The invention has the beneficial effects that: the special flow path design not only can simplify the whole assembly and reduce the assembly cost, but also can greatly improve the assembly simplicity.

Drawings

Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a top view illustrating two objects attached to a first embodiment of the modular hinge of the present invention;

FIG. 2 is an exploded perspective view of the first embodiment;

FIG. 3 is an exploded perspective view of a first kit unit of the first embodiment;

FIG. 4 is an assembled cross-sectional view of the first kit unit of the first embodiment;

FIG. 5 is an exploded perspective view of a second enclosure unit of the first embodiment;

FIG. 6 is an exploded perspective view of one of the hydraulic packs of the first embodiment;

FIG. 7 is a cross-sectional view illustrating a damper of the hydraulic stack in a closed door position according to the first embodiment;

FIG. 8 is a cross-sectional view similar to FIG. 7, but with the damper in an open door position;

FIG. 9 is a cross-sectional view illustrating a mandrel of the second kit unit releasing the buffer in the first embodiment;

FIG. 10 is a cross-sectional view similar to FIG. 9 but with the mandrel compressing the bumper;

FIG. 11 is an assembled perspective view of the first embodiment;

FIG. 12 is a cross-sectional view of the first embodiment;

FIG. 13 is a cross-sectional view similar to FIG. 7 illustrating a variation of a valve member in the illustrated embodiment;

FIG. 14 is a cross-sectional view similar to FIG. 7 illustrating another variation of the valve member in the illustrated embodiment;

FIG. 15 is an exploded perspective view illustrating a second embodiment of the modular hinge of the present invention;

FIG. 16 is an exploded perspective view of a first kit unit of the second embodiment;

FIG. 17 is an assembled cross-sectional view of the first kit unit of the second embodiment; and

fig. 18 is a cross-sectional view of the second embodiment.

Detailed Description

Before the present invention is described in detail, it should be noted that like elements are represented by like reference numerals throughout the following description.

Referring to fig. 1 and 2, a first embodiment of the combined hinge of the present invention is used for connecting two objects 11 and 12 (e.g., a door frame and a door leaf, the door leaf and the door frame form an included angle, the included angle is 0-200 degrees, the door is closed at 0 degree, and the door is opened at more than 0 degree), the combined hinge includes a leaf unit 2, a first sheathing unit 3, a second sheathing unit 4, and a linkage unit 5.

The sheet unit 2 includes a first sheet 21 and a second sheet 22 that are operable to rotate by an external force. The first sheet 21 and the second sheet 22 are made of metal materials. In the present embodiment, the first sheet 21 has two first seat pipes 211 formed at both ends and arranged at intervals in the direction of one axis X. Each of the first seat tubes 211 has two inner planes 212 formed on the inner surface and spaced apart by a distance. The second sheet 22 has a second seat tube 221 disposed between the first seat tubes 211 and spaced apart from the first seat tubes 211 along the axis X.

Referring to fig. 2, 3 and 4, the first kit unit 3 includes a first tube 31 passing through the first seat tube 211 and the second seat tube 221 along the axis X direction and linking with the corresponding first seat tube 211, a brake spring assembly 32 passing through the first tube 31, a friction member 33 forced by the brake spring assembly 32 and linking with the first tube 31, a pressing member 34 screwed with the first tube 31 and pressing against the brake spring assembly 32, and a plurality of spacers 35 disposed between the friction member 33 and the brake spring assembly 32 and between the brake spring assembly 32 and the pressing member 34. The first pipe 31 has two outer planes 311 formed on the outer surface and abutting against the respective inner planes 212, and two recesses 312 extending from one end toward the other end and separated by a distance. The brake spring assembly 32 has a plurality of springs 321 disposed between the friction member 33 and the pads 35, and a spacer 322 disposed between the two pads 35. The friction member 33 has two protrusions 331 formed on an outer circumferential surface and fitted into the recesses 312, and a friction curved surface 332 formed on one end surface. Thereby, the first pipe 31 is linked with the corresponding inner plane 212 of the first seat pipe 211 through the abutting relationship between the outer plane 311 and the inner plane 212.

Referring to fig. 2, 5-8, the second sleeve unit 4 includes a second pipe 41, an acting member 42, a mandrel 43, a hydraulic group 44, a check valve group 45, a throttle valve group 46, a first return spring 47, and a cover 48.

The second pipe 41 is inserted between the first seat pipe 211 and the second seat pipe 221 opposite to the first pipe 31, is interlocked with the corresponding first seat pipe 211, and has two outer planes 411 formed on the outer surfaces and abutting against the respective inner planes 212, and two grooves 412 formed on the inner surfaces and extending from one end to the other end with a distance therebetween.

The acting element 42 closes one end of the second pipe 41, and has two protrusions 421 formed on one circumferential surface and fitted in the grooves 412, an inclined surface 422 adjacent to one end edge of the circumferential surface, and an extension hole 423 extending from the inclined surface 422 along the axis X direction to an end surface opposite to the inclined surface 422.

The mandrel 43 has a shaft block 431 inserted into the second pipe 41, a shaft section 432 connected to the shaft block 431 and passing through the extension hole 423, and a knock pin 433 connected to the shaft block 431 and opposite to the shaft section 432. The axle block 431 has a mating surface 434 facing the ramp 422.

The hydraulic block 44 has an outer tube 441, an inner tube 442, a damper 443, a second return spring 444, an end cap 445 at one end, a plug 446, and a plug cap 447.

The outer tube 441 has an inner surface 4412 formed with an internal thread 4411, and a first external thread 4413 and a second external thread 4414 formed on the outer surface. The outer pipe 441 is screwed into the second pipe 41 by the first external thread 4413.

The inner tube 442 is disposed through the outer tube 441 and defines an inner chamber 4420 and an outer chamber 4410 with the inner surface 4412 of the outer tube 441 and has an orifice 4421 in communication with the outer chamber 4410. The inner lumen 4420 and the outer lumen 4410 are filled with a fluid. In this embodiment, the fluid is hydraulic oil.

The buffer 443 separates the inner cavity 4420 to form an upper chamber 4401 and a lower chamber 4402 which are communicated with the outer cavity 4410, and is displaceable between a door opening position (as shown in fig. 8) and a door closing position (as shown in fig. 7) relative to the first kit unit 3, and has a slider 4431 which is displaceably inserted in the inner cavity 4420 along the axis X direction, and an extension 4432 which is extended out of the outer tube 441 along the axis X direction from the slider 4431. The slider 4431 has an L-shaped flow channel 4433 for allowing the fluid to flow from the lower chamber 4402 to the upper chamber 4401 in one direction, and an abutting surface 4434 for connecting the flow channel 4433. In this embodiment, the flow channel 4433 has a through section 4435 connecting the abutment surface 4434.

When the damper 443 is displaced from the door-open position to the door-closed position, the extension 4432 of the damper 443 is compressed by the top pin 433 of the spindle 43, the volume of the upper chamber 4401 becomes smaller, and the fluid flows from the upper chamber 4401 to the lower chamber 4402 through the throttle hole 4421 and the outer chamber 4410, so as to generate a buffering force for slowing down the moving speed of the damper 443, when the damper 443 is displaced from the door-closed position to the door-open position, the damper 443 is released, the volume of the lower chamber 4402 becomes smaller, and the fluid flows from the lower chamber 4402 to the upper chamber 4401 through the flow channel 4433.

The second return spring 444 is disposed between the slider 4431 of the buffer 443 and the inner tube 442, and constantly generates a biasing force that keeps the buffer 443 in the open door position.

The end cap 445 is screwed to the second external thread 4414 of the outer tube 441 to be connected to one end of the outer tube 441, and has an angle setting hole 4451 extending from the top surface to the bottom surface in the direction of the axis X. The angle setting hole 4451 is adapted to allow a hand tool to pass therethrough, and is used for adjusting the screwing depth of the outer tube 441 and setting the distance between the top pin 433 of the mandrel 43 and the extension 4432 of the buffer 443, thereby adjusting the angle range of the buffering force when the first blade 21 or the second blade 22 rotates.

The plug member 446 is inserted into the outer tube 441 adjacent to the other end of the outer tube 441, is in airtight contact with the inner surface 4412 of the outer tube 441, and has a through hole 4461 through which the extending section 4432 of the buffer 443 passes.

The cap 447 is trapped between the plug member 446 and the outer tube 441. It should be noted that the opening at the other end of the outer tube 441 is riveted to the cap 447 in a riveting manner.

The check valve set 45 has a valve element 451 for openably closing the flow channel 4433 of the buffer 443, and a limiting elastic element 452 pressed between the inner tube 442 and the valve element 451. In this embodiment, the valve member 451 is T-shaped and has an abutting portion 453 urged against the abutment surface 4434 and a penetrating portion 454 penetrating the penetrating section 4435 of the flow passage 4433. The position limiting elastic element 452 constantly generates a biasing force which causes the abutting portion 453 of the valve element 451 to be forced against the abutting surface 4434 to close the flow passage 4433.

The throttle valve set 46 has a throttle valve 461 screwed to the internal thread 4411 of the outer tube 441 along the axis X direction, and an airtight washer 462 fitted between the inner surface 4412 of the outer tube 441 and the throttle valve 461. The throttle valve 461 has a throttle lever 463 inserted into the throttle hole 4421 of the inner tube 442, and a throttle setting hole 464 extending from the top surface in the direction of the axis X. The diameter of the throttle lever 463 gradually increases from one end inserted into the throttle hole 4421 to the other end away from the throttle hole 4421. The throttle setting hole 464 is adapted to adjust a screwing depth of the throttle valve 461 during screwing after the hand tool is inserted, and is further adapted to adjust a speed of fluid passing through the throttle hole 4421.

The first return spring 47 is arranged between the hydraulic block 44 and the spindle 43 and constantly generates a biasing force pushing the spindle 43 towards the acting element 42.

The cover 48 closes the other end of the second pipe 41.

The linkage unit 5 includes a linkage member 51 positioned in the second seat tube 221 of the second sheet 22 and rotating synchronously with the second sheet 22, and a contact member 52 connected to the shaft section 432 of the spindle 43. The linking member 51 has a square bolt hole 511 and a groove 512 arranged along the axis X direction, and a screw member (not shown) for screwing the second seat tube 221 and the linking member 51. The spline hole 511 is for the shaft section 432 of the mandrel 43 to pass through. In this embodiment, the groove 512 is a circular groove for the contact 52 to be inserted. The contact member 52 is adapted to frictionally contact the curved friction surface 332.

Referring to fig. 2 and 4, it should be noted that, by using the curvature position of the friction curved surface 332 of the friction member 33, the first leaf 21 rotating synchronously with the first kit unit 2 or the second leaf 22 rotating synchronously with the linking member 51 and the friction member 33 can be controlled to generate a friction stopping effect at the highest point of the friction curved surface 332 at a predetermined angle (e.g. 80-90 degrees), so that the door can be temporarily stopped at the predetermined angle position, and the door can be automatically closed only by lightly pulling or lightly pushing the door by hand, or the door closing speed of the door can be controlled to change by generating a friction resistance effect at the friction curved surface 332 at a predetermined angle, such as 20 degrees or less, or 20-60 degrees, when the door is closed by the first leaf 21 or the second leaf 22. It should be noted that, the angle for temporarily stopping the rotation of the door leaf or changing the door closing speed of the door leaf may be arbitrarily changed from 180 degrees to 80 degrees according to the curvature position of the friction curved surface 332 of the friction member 33 and the customer's requirement, but not limited thereto.

Referring to fig. 9, 10, 11 and 12, when an external force drives the first leaf 21 to rotate around the axis X to open the door, the first leaf 21 drives the first tube 31 of the first sleeve unit 3 and the second tube 41 of the second sleeve unit 4 synchronously through the first seat tube 211. At this time, since the protrusion 421 of the acting element 42 is engaged with the groove 412 of the second tube 41 and rotates synchronously with the second tube 41, when the first leaf 21 rotates, the second tube 41 will simultaneously drive the acting element 42 to rotate, and under the condition that the second seat tube 221 of the second leaf 22, the linking element 51 and the shaft section 432 of the spindle 43 are not rotated, the second tube 41 and the acting element 42 are engaged with the inclined surface 422 and the engaging surface 434 during the rotation process, so as to reduce the distance between the shaft block 431 and the acting element 42.

Since the first return spring 47 is compressed when the door is closed, when the engagement surface 434 of the shaft block 431 is engaged with the inclined surface 422 of the acting element 42, the shaft block 431 of the spindle 43 is subjected to the biasing force of the first return spring 47, and is displaced toward the acting element 42 to reduce the distance from the acting element 42, and the top pin 433 of the mandrel 43 releases the extending section 4432 of the buffer 443, so that the buffer 443 is biased by the second return spring 444 to be displaced from the door-closed position toward the door-open position, and during the displacement, as the volume of the lower chamber 4402 becomes smaller, the fluid pressure becomes higher, pushing the fluid in the lower chamber 4402 into the flow passage 4433, and the valve element 451 of the check valve set 45 is pushed against the biasing force of the limiting elastic element 452 to open the flow channel 4433, so that the fluid can rapidly enter the upper chamber 4401 from the lower chamber 4402 through the flow channel 4433. At this time, since the fluid can flow faster, the generated damping force is small.

Meanwhile, the first tube 31 will synchronously drive the friction member 33 to rotate, and also under the condition that the second seat tube 221 of the second sheet 22 and the linkage member 51 are not rotated, the friction curved surface 332 of the friction member 33 and the contact member 52 are in friction contact in the rotating process, so as to generate a retarding force resisting the external force, and the door opening speed is controlled by the strength of the retarding force.

Since the door frame and the door leaf are not provided with only one combined hinge according to the present invention, but also combined with other hinges (not shown) to provide a restoring torque for automatic door closing, when the external force is released and the door leaf is closed, the first tube 31, the friction member 33 of the first kit unit 3, the second tube 41 of the second kit unit 4, the acting member 42 and the first leaf 21 are rotated in opposite directions due to the restoring torque, so that the acting member 42 pushes the engaging surface 434 of the block 431 of the spindle 43 with the inclined surface 422 to enlarge the distance between the acting member 42 and the block 431 of the spindle 43 and compress the first return spring 47, whereby the top pin 433 of the spindle 43 is pressed against the extending section 4432 of the 443 to displace the buffer 443 from the door opening position to the door closing position, and compresses the second return spring 444, and during the displacement, as the volume of the upper chamber 4401 becomes smaller and the fluid pressure becomes larger, the fluid in the upper chamber 4401 enters the outer chamber 4410 through the gap between the throttle lever 463 of the throttle valve 461 and the throttle hole 4421 and then flows back to the lower chamber 4402, and as the gap between the throttle lever 463 and the throttle hole 4421 is smaller, the fluid passing speed is reduced, and a buffer force for reducing the moving speed of the buffer 443 is generated, the door closing speed is reduced.

Because there is no airtight gasket between the slider 4431 of the buffer 443 and the inner tube 442, when the door is closed to a predetermined angle, such as 20 degrees or less, and the fluid pressure in the upper chamber 4401 is greater due to the smaller volume, the fluid in the upper chamber 4401 overflows to the lower chamber 4402 through the gap between the slider 4431 of the buffer 443 and the inner tube 442, so that the upper chamber 4401 and the lower chamber 4402 are free from resistance, and thus the door leaf can be smoothly closed to 0 degree under the condition of smaller buffer force.

It should be noted that even if the restoring torque force is insufficient, the inclined surface 422 of the acting element 42 is pushed by the engagement with the engagement surface 434 of the shaft block 431 during the forward and backward rotation of the inclined surface 422 of the acting element 42, so as to assist the forward and backward rotation of the acting element 42, thereby increasing the distance between the acting element 42 and the shaft block 431 of the spindle 43 and decreasing the distance between the inclined surface 422 of the acting element 42 and the engagement surface 434 of the spindle 43.

Since the combined hinge and hydraulic device of the present invention has no directional limitation when being installed, when the second leaf 22 is driven by external force to rotate around the axis X to open the door, the second leaf 22 will drive the linkage 51 synchronously through the second seat tube 221, so that the linkage 51 drives the spindle 43 to rotate synchronously through the engagement between the square bolt hole 511 of the linkage 51 and the shaft segment 432 of the spindle 43 during the rotation process.

Thereby, the contact member 52 on the shaft portion 432 is brought into frictional contact with the frictional curved surface 332 of the friction member 33, a retarding force against the external force is generated, and the door opening speed is controlled by the strength of the retarding force.

Meanwhile, the shaft block 431 of the spindle 43 is rotated to be engaged with the inclined surface 422 of the acting element 42 by the engaging surface 434, and the acting element 42 is fixed in the recess 312 of the first pipe 31, so that the shaft block 431 of the spindle 43 is biased by the first return spring 47 to be displaced toward the acting element 42 and reduce the distance between the shaft block 431 and the acting element 42, and the push pin 433 of the spindle 43 releases the extension 4432 of the buffer 443 to allow the buffer 443 to be biased by the second return spring 444 to be displaced from the door-closed position toward the door-open position, and during the displacement, because the volume of the lower chamber 4402 is reduced, the fluid pressure is increased, the fluid in the lower chamber 4402 is pushed into the flow passage 4433, and the valve element 451 of the check valve group 45 is pushed to open the flow passage 4433 against the biasing force of the check elastic element 452, fluid rapidly enters the upper chamber 4401 from the lower chamber 4402 through the flow passage 4433.

Similarly, when the external force is released to close the door, the second leaf 22 drives the spindle 43 to rotate in the reverse direction through the linking member 51, and under the condition that the second tube 41 of the second sleeve unit 4, the acting member 42, the first tube 31 of the first sleeve unit 3, the friction member 33 and the first leaf 21 are not rotated, the spindle 43 pushes the inclined surface 422 of the acting member 42 with the engaging surface 434 during the reverse rotation to enlarge the distance between the acting member 42 and the shaft block 431 of the spindle 43 and compress the first return spring 47, so that the extending section 4432 of the buffer 443 is pushed by the push pin 433 of the spindle 43, the buffer 443 is displaced from the door-open position to the door-closed position and compresses the second return spring 444, and during the displacement, because the volume of the upper chamber 4401 becomes smaller, the fluid pressure increases to make the fluid in the upper chamber 4401 enter the outer chamber 4410 through the gap between the throttle lever 463 of the throttle valve 461 and the throttle hole 4421 and then flow back to the lower chamber 4402, and the gap between the throttle lever 463 and the throttle hole 4421 is small, so that the fluid passing speed is reduced, and the buffer force for reducing the moving speed of the buffer 443 is generated, and the door closing speed is reduced.

It should be noted that the angle setting hole 4451 of the hydraulic group 44 can be inserted by a hand tool, so that the screwing depth of the hydraulic group 44 and the first pipe 31 can be adjusted by rotating the end cap 445 through the hand tool, and the distance between the extending section 4432 of the hydraulic group 44 and the top pin 433 can be adjusted to change the angle range of the generated buffering force, thereby adjusting the angle range of the door leaf closing deceleration. The deceleration angle is usually set to be in the range of 60-30 degrees, and the door is normally opened by more than 45 degrees, and when the door is closed by releasing external force, the buffering effect of slowly closing the door is achieved. For example, when the other combination hinges (not shown) are combined and the restoring torque of the automatic door closing is larger, the deceleration angle range can be set to be closer to 90 degrees, such as 45-80 degrees, so that under the condition of stronger door closing force, the buffer force can be generated immediately after the door is opened and the external force is released, and the action of closing the door to 0 degree is not influenced. The return torsion when the automatic door closing is less, just can set for the angle scope of speed reduction more to be close to the position of 0 degree, for example between 15 degrees ~ 45 degrees, borrow this, under the less strong condition of the power of closing the door, or when installing fragile door leaves such as glass, can just produce the buffer power when closing the door to close to 0 degree, and then reduce the buffer power to the influence of returning the torsion, or can avoid knocking glass door leaf, and the noise reduction produces, does not influence the action of closing the door to 0 degree.

The throttle setting hole 464 can be inserted by another hand tool, so that the gap between the throttle lever 463 and the throttle hole 4421 can be adjusted by the hand tool to change the flow rate of fluid passing through and further control the door closing speed, and in addition, the pressing piece 34 can be screwed in or out, the blocking force of the spring plate 321 can be changed by the cushion block 322, or the friction piece 33 with different friction curved surfaces 332 can be replaced, so that the friction curved surface 332 of the friction piece 33 and the contact piece 52 can generate friction resistance at different angles, and the friction force can be adjusted to form another mode of mechanically controlling the door closing speed.

Referring to fig. 13 and 14, it should be noted that the valve element 451 is not limited to a T shape, but in other variations of this embodiment, the valve element 451 may be a sphere as shown in fig. 13, and the abutting surface 4434 is a curved surface matching with the sphere, or a flat plate as shown in fig. 14. Thereby, the valve element 451 can be forced by the biasing force of the elastic limiting element 452 to abut against the abutting surface 4434 to close the flow passage 4433.

The hydraulic device composed of the hydraulic group 44, the check valve group 45 and the throttle valve group 46 is not limited to the hinge of the present invention, and may be any object that needs to provide a damping force in other variations of the present embodiment.

Referring to fig. 15, a second embodiment of the hinge assembly of the present invention, which is substantially the same as the first embodiment, also includes the leaf unit 2, the first sheathing unit 6, the second sheathing unit 4, and the linking unit 5, except that:

referring to fig. 16, 17 and 18, the first kit unit 6 includes a first tube 61 inserted into the first tube 211 and the second tube 221, a torsion spring 62, an end 63 rotatably engaged with the first tube 61, a washer 64, a limit bolt 65, and a shaft 66 inserted into the first tube 61.

The first pipe member 61 has two outer flat surfaces 611 formed on the outer surface and abutting against the inner flat surfaces 212 of the corresponding first seat pipes 211, and one spline 612 on the inner surface.

The torsion spring 62 has two

ends

621, 622.

The end piece 63 has a hexagonal hole 631 formed on an end surface thereof and exposed to the outside of the first pipe 61, a recess 632 formed on an outer circumferential surface thereof, a ring tooth 633 engaged with the tooth groove 612 of the first pipe 61, and a groove 634 formed on an outer circumferential surface thereof and into which the end 621 of the torsion spring 62 is inserted to be interlocked. The hexagonal hole 631 is used for a hand tool (not shown) to engage, and then to rotate the end piece 63, adjust the engaging position of the tooth socket 612 and the ring tooth 633, and twist the torsion spring 62, and change the torsion of the torsion spring 62.

The washer 64 is disposed at the end of the first tube 61 for stopping the torsion spring 62 and preventing the torsion spring 62 from being disengaged from the groove 634 of the end piece 63.

The limit bolt 65 is screwed into the first pipe 61 and inserted into the recess 632 of the end piece 63, so that the end piece 63 is limited to the first pipe 61.

The shaft 66 is disposed between the torsion springs 62 along the axis X and has a stud 661 and an annular rim 663 defining a gap 662. The pin 661 is engaged with the groove 512 of the linkage 51, and the gap 662 is connected to the groove 634, such that the end 622 of the torsion spring 62 passes through the gap 662 and is inserted into the groove 634.

Referring to fig. 9, 17 and 18, when the first leaf 21 is driven by an external force to rotate around the axis X to open the door, the first leaf 21 drives the first tube 61 of the kit unit 6 synchronously through the first seat tube 211, so that the first tube 61 drives the end piece 63 to twist the end 621 of the torsion spring 62 synchronously during rotation, and the torsion spring 62 rotates in the pressure accumulation direction under the condition that the second seat tube 221 of the second leaf 22, the linkage piece 51 and the shaft rod 66 are fixed, and generates a retaining force (restoring force) capable of resisting the external force and being stored.

The action principle and efficacy of the second sheathing unit 4 can be referred to above.

Therefore, when the external force is released, the torsion spring 62 releases the restoring force, and can provide the restoring force to make the first pipe 61 of the first sleeve unit 6, the second pipe 31 of the second sleeve unit 3 and the first leaf 21 rotate reversely when the door is closed.

Since the assembled hinge of the present invention has no directional limitation when being installed, when the second leaf 22 is driven by external force to rotate around the axis X to open the door, the second leaf 22 will drive the spindle 43 synchronously through the second seat tube 221 to drive the linkage 51, so that the linkage 51 drives the shaft 66 synchronously to twist the end 622 of the torsion spring 62 during rotation, and under the condition that the first seat tube 211 of the first leaf 21, the end piece 63 and the end 621 of the torsion spring 62 are fixed, the torsion spring 62 can also rotate in the pressure accumulation direction, and generate a blocking force (restoring force) capable of resisting the external force and accumulating.

Thereby, when the external force is released to close the door, the torsion spring 62 can provide a restoring force to reversely rotate the second sheet 22. Moreover, since the first kit unit 6 of the second embodiment can provide the restoring torque for automatic door closing, more than two second embodiments can be configured according to the practical requirements, or other hinges can be configured.

In addition, only by turning the end piece 63 of the first kit unit 6 with a tool (not shown), the end piece 63 twists the torsion spring 62 to a predetermined angle, so as to increase or decrease the torsion of the torsion spring 62, thereby achieving the purpose of controlling the door closing force and further improving the smoothness of the door closing.

From the above description, the advantages of the foregoing embodiments can be summarized as follows:

1. the invention is designed by a special flow path, which not only can simplify the whole assembly of the second sleeve unit 4, reduce the assembly cost, but also can greatly improve the assembly simplicity.

2. The present invention can adjust the angle range having the buffering force when the first sheet 21 or the second sheet 22 rotates by adjusting the screwing depth of the outer tube 441 of the hydraulic unit 44 through the angle setting hole 4451 and setting the distance between the top pin 433 of the mandrel 43 and the extension 4432 of the buffer 443.

3. In addition, the present invention can also adjust the gap between the throttle lever 463 and the throttle hole 4421 through the throttle setting hole 464, and change the flow rate of the fluid passing through, thereby controlling the door closing speed.

4. Importantly, because there is no airtight gasket between the slider 4431 of the buffer 443 and the inner tube 442, when the door is closed to a predetermined angle or below, and the volume of the upper chamber 4401 is reduced and the fluid pressure is high, the fluid in the upper chamber 4401 overflows from the gap between the slider 4431 of the buffer 443 and the inner tube 442 to the lower chamber 4402, so that the upper chamber 4401 and the lower chamber 4402 are free of resistance, when the door is closed to an angle smaller than 20 degrees, all the buffering forces disappear because the upper chamber 4401 and the lower chamber 4402 are free of resistance, and therefore, the door can be smoothly closed to 0 degree under the condition of small buffering force, and even if there is air pressure or wind force in the door, the door can be slowly and smoothly closed.

The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.

Claims

1. A modular hinge, comprising:

the blade unit comprises a first blade and a second blade which are pivoted with each other and can be operated, the first blade is provided with at least one first seat pipe, and the second blade is provided with at least one second seat pipe which is arranged at intervals along the axial direction with the first seat pipe;

the first sleeve unit is arranged in the first seat tube and the second seat tube along the axis direction in a penetrating manner, rotates synchronously with the first page and is at least used for generating a blocking force; and

the second sleeve unit is arranged in the first seat tube and the second seat tube in a penetrating manner in the direction opposite to the first sleeve unit along the axis, and synchronously rotates with one of the first leaf and the second leaf, and is characterized in that:

the second sleeve unit comprises a second pipe fitting rotating synchronously with the first leaf, a mandrel penetrating through the second pipe fitting and having a rotation speed inversely proportional to the blocking force, and a hydraulic unit having an inner cavity filled with a fluid, an outer cavity surrounding the inner cavity and communicating with the inner cavity, and a buffer member separating the inner cavity to form an upper chamber and a lower chamber communicating with the outer cavity, and being forced by the mandrel to displace between an open door position and a closed door position relative to the first sleeve unit, and having a flow channel for a fluid to flow from the lower chamber to the upper chamber in one direction, wherein when the buffer member displaces from the open door position to the closed door position, the buffer member is compressed by the mandrel, the volume of the upper chamber is reduced, and the fluid flows from the upper chamber to the lower chamber through the outer cavity, thereby generating a buffer force for slowing down the movement speed of the buffer member, when the buffer member is displaced from the door closing position to the door opening position, the mandrel releases the buffer member, the volume of the lower cavity is reduced, and fluid flows from the lower cavity to the upper cavity through the flow channel;

the hydraulic unit is also provided with an outer tube and an inner tube penetrating in the outer tube, the inner tube defines the inner cavity and defines the outer cavity with the outer tube, the buffer piece is provided with a sliding block penetrating in the inner cavity in a displaceable manner along the axial direction and an extension section penetrating out of the outer tube along the axial direction, and the sliding block is provided with the flow channel;

the outer pipe of the hydraulic unit is provided with a first external thread which is formed on the outer surface and screwed on the second pipe fitting, the first external thread is used for adjusting the screwing depth of the outer pipe, setting the distance between the mandrel and the extension section of the buffer piece and adjusting the angle range of the buffer force when the first leaf or the second leaf rotates.

2. The modular hinge of claim 1, wherein: the inner tube has an orifice communicating between the outer chamber and the upper chamber for fluid flow from the upper chamber to the outer chamber.

3. The modular hinge of claim 2, wherein: the second sleeve element unit further comprises a one-way valve group, the one-way valve group is provided with a valve element capable of openably closing the flow channel of the buffer element, and a limiting elastic element pressed against the space between the inner tube and the valve element, and the limiting elastic element constantly generates a biasing force enabling the valve element to close the flow channel.

4. The modular hinge of claim 3, wherein: the sliding block of the buffer piece is provided with a butting surface connected with the flow channel, the butting surface can be a curved surface or a plane, the butting surface of the valve piece matched with the curved surface is a sphere, or the butting surface of the matched plane is a flat plate, and the valve piece is forced to butt against the butting surface under the action of the biasing force.

5. The modular hinge of claim 3, wherein: the sliding block of the buffer piece is provided with a planar abutting surface which is connected with the flow channel, the valve piece is T-shaped, part of the valve piece penetrates through the flow channel, and the other part of the valve piece is forced to abut against the abutting surface.

6. The modular hinge of claim 2, wherein: the second sleeve unit further comprises a throttle valve group, the outer pipe is provided with an inner surface which surrounds the axis and is provided with an internal thread, the inner surface and the inner pipe define the outer cavity, the throttle valve group is provided with a throttle valve which is screwed in the internal thread along the axis direction, and an airtight gasket which is sleeved between the inner surface of the outer pipe and the throttle valve, the throttle valve is provided with a throttle rod which is arranged in the throttle hole of the inner pipe in a penetrating manner, and the diameter width of the throttle rod is gradually increased from one end arranged in the throttle hole to the other end far away from the throttle hole.

7. The modular hinge of claim 6, wherein: the hydraulic pressure group of second external member still has the end cover, and the plug member, the end cover connect in the one end of outer tube to have and follow by the top surface the angle that axis direction extends to the bottom surface sets for the hole, the angle sets for the hole and is applicable to and supplies hand tool to pass through, the choke valve has and follows by the top surface the throttle that axis direction extends sets for the hole, the throttle sets for the hole and is applicable to the confession after hand tool imbeds, be used for in the in-process of being rotated, the adjustment the spiral shell of choke valve closes the degree of depth, and then is applicable to and adjusts fluid and passes through the speed of orifice, the plug member is worn to be put the outer tube and is close to the other end of outer tube, and airtight contact in the internal surface of outer tube, and have the confession the through-hole that the extension section of bolster passes through.

8. The modular hinge of claim 7, wherein: the second sleeve unit further comprises an acting element which is used for packaging one end of the second pipe opposite to the end cover and forms linkage with the second pipe, and a first reset elastic element, wherein the acting element is provided with an inclined surface facing the hydraulic group, an extending hole which extends from the inclined surface to an end surface opposite to the inclined surface along the axis, the mandrel and the second leaf synchronously rotate and are provided with a shaft block penetrating in the second pipe, a shaft section connected with the shaft block and passing through the extending hole, and a top pin connected with the shaft block and used for pressing against the extending section of the hydraulic group, the shaft block is provided with a fit surface facing the inclined surface, when the buffer is positioned at the door closing position, the fit surface and the inclined surface are mutually pushed to be away from each other, and the top pin presses against the extending section, when the buffer is positioned at the door opening position, the fit surface and the inclined surface are mutually fit, the ejector pin releases the extension section, and the first reset elastic element is arranged between the hydraulic unit and the mandrel and constantly generates a biasing force pushing the mandrel to move towards the action piece.

9. The modular hinge of claim 8, wherein: the outer pipe of the hydraulic group is also provided with a second external thread formed on the outer surface, the end cover is screwed on the second external thread, and the angle setting hole is suitable for adjusting the screwing depth of the outer pipe in the process of being screwed after the hand tool is embedded.

10. The modular hinge of claim 8, wherein: the combined hinge further comprises a linkage unit, the linkage unit comprises a linkage piece which penetrates through the at least one second seat tube and synchronously rotates with the second leaf, and the linkage piece is connected to the shaft section of the mandrel and synchronously rotates with the shaft section of the mandrel.

11. The modular hinge of claim 10, wherein: the first sleeve unit comprises a first pipe fitting, a brake spring set penetrating in the first pipe fitting, a friction piece forced by the brake spring set and forming linkage with the first pipe fitting, and a pressing piece screwed with the first pipe fitting and pressing the brake spring set to change the resistance force, wherein the friction piece is provided with a friction curved surface facing the second sleeve unit, the linkage unit further comprises a contact piece connected to the shaft section of the mandrel, and the contact piece is used for being in friction contact with the friction curved surface to generate the resistance force.

12. The modular hinge of claim 10, wherein: the first sleeve unit comprises a first pipe, a shaft rod which is arranged in the first pipe in a penetrating mode and forms linkage with the linkage part, a torsion spring which surrounds the shaft rod, and an end piece which can be clamped with the first pipe in a rotating mode and is used for rotating the torsion spring to change the torsion force, wherein the torsion spring is provided with two end portions which are connected with the end piece and the shaft rod, stores the torsion force when the first leaf or the second leaf is operated to rotate, and is used for driving the first leaf or the second leaf to rotate reversely after the torsion force is released.

13. The modular hinge of claim 2, wherein: the hydraulic unit is also provided with a second reset elastic element arranged between the buffer piece and the inner pipe, and the second reset elastic element constantly generates a biasing force for enabling the buffer piece to be positioned at the door opening position.