CN110499984B - Dabber and device have universal hydraulic hinge of violence prevention of this dabber - Google Patents
Dabber and device have universal hydraulic hinge of violence prevention of this dabber Download PDFInfo
- Publication number
- CN110499984B CN110499984B CN201910874254.9A CN201910874254A CN110499984B CN 110499984 B CN110499984 B CN 110499984B CN 201910874254 A CN201910874254 A CN 201910874254A CN 110499984 B CN110499984 B CN 110499984B
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- mandrel
- piston
- oil
- main shaft
- spring
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- 230000002265 prevention Effects 0.000 title description 2
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims description 66
- 239000000446 fuel Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000003139 buffering effect Effects 0.000 description 5
- 239000006249 magnetic particle Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
- E05D11/1014—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in only one position, e.g. closed
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
- E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/14—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with fluid brakes of the rotary type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention relates to an anti-violence universal hydraulic hinge and a mandrel thereof, and the mandrel comprises two hinge plates, a mandrel and two screwing pieces arranged at two ends of the mandrel, wherein the two hinge plates are sleeved on the mandrel and are respectively connected with the two screwing pieces, a device capable of rotating relatively is arranged between the two hinge plates, the outer sides of the two screwing pieces at the upper end and the lower end of the mandrel are respectively provided with an upper end cover and a lower end cover, a connecting main shaft of the mandrel rotates to drive a piston to rotate in any left direction and right direction, the piston simultaneously moves up and down in a cylinder body due to the guiding of a sliding sleeve and the work of a main spring, so that pressure difference is generated between the inner cavity of the cylinder body and a hydraulic oil bin, the rotation speed of the connecting main shaft is buffered by the flow of hydraulic oil, when the door is closed, both sides of the door can be opened, when the track is a double-wave track, the hydraulic hinge can be used for a door with 180 degrees, and both sides of the door are opened.
Description
Technical Field
The invention relates to the technical field of hydraulic pressure, in particular to a hydraulic hinge mandrel and an anti-violence universal hydraulic hinge with the mandrel.
Background
In order to solve the problem of sound when the door is closed, the hydraulic hinge is a good choice.
The Chinese patent with the publication number of CN103266823 discloses a spiral hydraulic hinge which is simple in structure, an upper hinge part and a lower hinge part can be integrally separated, the hydraulic part is driven to move by the displacement of an upper spiral block knob and a lower spiral block knob, the buffering is realized, and the spiral hydraulic hinge has the advantages of prolonging the service life of the hydraulic hinge, improving the buffering performance and the like. However, the technology of the patent can not control the buffering speed and is limited in use.
The hydraulic hinges in the prior art are all unidirectional hinges, and the buffer force is the inertial force generated by acceleration when a door body is closed, and the buffer force cannot resist the inertial force when the stress is large, so that the problem of buffer failure is caused.
Disclosure of Invention
The invention provides a mandrel, which comprises a shell, a valve needle assembly, a cylinder body, a piston, a lower cam ring, a main spring, a connecting main shaft and a positioning device, wherein the valve needle assembly, the cylinder body, the piston, the lower cam ring, the main spring, the connecting main shaft and the positioning assembly are sequentially arranged in the shell from top to bottom, a waveform track is formed between the cylinder body fixedly arranged in the shell and the lower cam ring, the side wall of the piston is provided with a sliding sleeve which is arranged in the waveform track to guide and slide, the connecting main shaft and the piston are arranged in a tooth-to-tooth meshing manner, the connecting main shaft rotates to drive the piston to rotate in any left and right directions, the piston is guided downwards by the sliding sleeve, and hydraulic oil flows due to the fact that external force and the main spring do work and move up and down in the cylinder body, and pressure difference is generated between an inner cavity of the cylinder body and a hydraulic oil bin.
Furthermore, the cylinder body is provided with an adjusting screw position, the adjusting screw position is communicated with the inner cavity of the cylinder body through a cone valve hole, and the side wall of the cone valve hole is provided with a pressure relief oil way.
Further, the valve needle assembly comprises a spring adjusting screw, an oil valve pressure spring and a valve needle which are sequentially arranged in the adjusting screw position from top to bottom.
Further, the piston is communicated with the connecting main shaft through a main oil way, and the connecting main shaft is provided with an oil inlet hole which is used for communicating the main oil way with the hydraulic oil bin.
Further, the piston is provided with a check valve, and an oil way of the check valve is communicated with the main oil way.
Furthermore, the main spring is propped between the bottom of the piston and a spring adjusting pin inserted on the connecting main shaft.
Further, the wave-shaped track is formed by a wave crest and a wave trough within the 180-degree circumferential range, and a sliding sleeve is installed on the piston.
Further, the wave-shaped track is formed by two pairs of wave crests and wave troughs in a 360-degree circumferential range, and two sliding sleeves are oppositely arranged on the piston for 180 degrees.
Another solution provided by the invention is to provide an anti-violence universal hydraulic hinge, which comprises two hinge plates, a mandrel according to any one of claims 1 to 8 and two screwing pieces arranged at two ends of the mandrel, wherein the two hinge plates are sleeved on the mandrel and are respectively connected with the two screwing pieces, and a device capable of rotating relatively is arranged between the two hinge plates.
Furthermore, an upper end cover and a lower end cover are respectively arranged on the outer sides of the two screwing pieces at the upper end and the lower end of the mandrel.
Has the advantages that: the universal hydraulic hinge for preventing violence of the invention drives the piston to rotate through the connection of the connecting main shaft to drive the sliding sleeve to move according to the track, the track is of a wave structure, the shaft sleeve can move in any direction according to the rotating direction of the connecting main shaft, the hydraulic hinge can be operated in all directions in installation and use, the positioning parts and the oil seal positions are arranged at the upper part and the lower part in the core shaft, the stability of internal parts is ensured, the problem of oil leakage of the hydraulic hinge is solved, the tightness of the main spring is adjusted by arranging the spring adjusting screw, the connection design between the main oil path and the oil inlet hole as well as the check valve is scientific and reasonable, when the spring structure of the valve needle assembly meets the condition of violent door opening and closing, even if the violent force is great, the damage of the parts and the damage of the door body can not occur, and the service life of the hydraulic hinge is prolonged. When the butt-joint structure of cylinder body bottom horizontal plane and lower cam ring top horizontal plane made the door open, the door body stably stayed when 90, was provided with filter element cotton and strong magnetism granule, and the impurity in the filtration adsorption oil guarantees that the oil circuit is unobstructed, increase of service life reduces the maintenance rate.
Drawings
FIG. 1 is an exploded view of the core construction of the present invention;
FIG. 2 is a schematic structural view of a piston and a connecting main shaft according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a piston and a connecting main shaft according to embodiment 2 of the present invention;
FIG. 4 is a schematic structural view of a mandrel according to embodiment 2 of the present invention;
FIG. 5 is a schematic view of the operation of the extreme position mandrel in the door-open state according to embodiment 1 of the present invention;
FIG. 6 is a schematic structural view of two extreme positions of a hydraulic hinge in embodiment 2 of the invention;
1. a mandrel; 10. a housing; 11. a valve needle assembly; 111. a pressure adjusting screw; 112. a valve needle; 113. an oil valve pressure spring; 12. a cylinder body; 121. adjusting the screw position; 122. oil seal position of the cylinder body; 123. positioning a pit; 124. a wave cam; 125. a magnetic particle bin; 126. a pressure relief oil path; 127. a cone valve hole; 13. a piston; 131. filtering the sponge; 132. piston oil seal position; 133. a one-way valve; 135. a hydraulic part; 136. a main oil path; 137. a piston body; 138. conical pits; 139. a flower part enters the oil notch; 14. a lower cam ring; 141. a sliding sleeve; 142. a sliding sleeve connecting shaft; 15. connecting the main shaft; 151. an oil inlet hole; 152. a spring adjustment groove; 153. a spring adjustment pin; 154. a convex edge; 155. a pressure steel ball ring pit; 156. oil seal position; 157. spring screw adjusting holes; 158. a shaft body; 159. a flower piece slot; 16. a main spring; 161. a hydraulic oil sump; 17. a pressure steel ball positioning piece; 171. positioning a pit; 172. a ring-shaped pit; 18. positioning a bearing sleeve; 19. a spring adjusting screw; 20. and a positioning component.
Detailed Description
The following detailed description of the embodiments of the present invention refers to the accompanying drawings.
As shown in fig. 1, a mandrel 1 of the hydraulic buffer hinge of the present invention includes a housing 10, a valve needle assembly 11, a cylinder 12, a piston 13, a lower cam ring 14, a connecting main shaft 15, a main spring 16, a spring adjusting pin 153, a pressure steel ball positioning element 17, a positioning bearing sleeve 18, and a spring adjusting screw 19, wherein the cylinder 12, the lower cam ring 14, the piston 13, the spring 16, the connecting main shaft 15, the spring adjusting pin 153, the pressure steel ball positioning element 17, and the positioning bearing sleeve 18 are sequentially installed in the housing 10 from top to bottom.
The outer walls of the cylinder body 12 and the lower cam ring 14 are provided with positioning grooves for fixing and positioning the cylinder body 12 and the lower cam ring 14 inside the housing 10.
The bottom of the cylinder body 12 is provided with a wave cam 124, the circumference of 180 degrees comprises a wave peak and a wave trough, in order to increase the rotation range of the hydraulic hinge, the wave cam 124 formed by two wave peaks and wave troughs can also be arranged in the circumference of 360 degrees of the bottom of the cylinder body, the top of the lower cam ring 14 is the same as the wave cam 124 in shape, the cylinder body 12 and the lower cam ring 14 are respectively and fixedly arranged in the shell 10, a wave track is formed between the cylinder body 12 and the lower cam ring 14, the bottom of the two cylinder bodies are respectively formed into a single wave peak track and a double wave peak track, the single wave peak track is provided with a wave peak and a wave trough in the half circumference of 180 degrees, the double wave peak track is provided with two wave peaks and wave troughs in the circumference of 360 degrees, wherein the wave peak is an upper dead center, the wave trough is an arc structure, the upper dead center position is used for the sliding sleeve 141 to stay when moving to the upper dead center, the piston 13 and the connecting main shaft 15 are driven by a flower position structure, the flower part position structure is a tooth-to-tooth meshing structure, a section of smooth structure forms a flower part oil inlet notch 139 between the piston 13 and the connecting main shaft 15, when pressure difference is generated, oil is fed from the flower part oil inlet notch 139, a sliding sleeve 141 is fixedly arranged on the piston 13 through a sliding sleeve connecting shaft 142, the sliding sleeve 141 is arranged between the cylinder body 12 and a track formed by the lower cam ring 14, displacement is generated along the track along with the movement of the piston, the single wave track is provided with the sliding sleeve 141, and the double wave track is provided with the two sliding sleeves 141. The spring adjusting pin 153 is horizontally arranged with the connecting main shaft 15 in a penetrating way, the main spring 16 is sleeved outside the piston 13 and the connecting main shaft 15 and respectively abutted against the spring adjusting pin 153 arranged at the bottom of the piston 13 and the connecting main shaft 15, a convex edge 154 is arranged on the connecting main shaft 15 and is oppositely arranged with a concave surface of the pressure steel ball positioning piece 17, steel balls are arranged between the opposite surfaces, the positioning bearing sleeve 18 is arranged at the bottom of the shell, the built-in O-shaped sleeve is sleeved on the connecting main shaft 15, the pressure steel ball positioning piece 17 and the positioning bearing sleeve 18 form a positioning assembly, the valve needle assembly 11 is screwed in the cylinder body 12, the spring adjusting screw 19 is screwed at the bottom of the connecting main shaft 15 and is abutted against the spring adjusting pin 153, and the spring adjusting screw 19 and the spring adjusting pin 153 form a spring adjusting device.
The top of the cylinder body 12 is provided with an adjusting screw position 121 for screwing the valve needle assembly 11, the valve needle assembly 11 comprises a pressure adjusting screw 111, a valve needle 112 and an oil valve pressure spring 113, the pressure adjusting screw 111 is an internal rotation adjusting bolt, the bottom of the pressure adjusting screw is provided with a spring groove, and the oil valve pressure spring 113 is arranged in the spring groove, is sleeved on the valve needle 112 and abuts against a convex edge on the valve needle 112. An adjusting screw position 121 is arranged at the top of the cylinder body 12, the adjusting screw position 121 is communicated with the inner cavity of the cylinder body through a cone valve hole 127, a pressure relief oil path 126 is arranged on the side wall of the cone valve hole 127, the pressure relief oil path 126 leads to the hydraulic oil bin 161 along the outer walls of the cylinder body 12 and the lower cam ring 14, a magnetic particle bin 125 is arranged in the inner cavity of the cylinder body 12, strong magnetic particles in oil are adsorbed in the magnetic particle bin 125, a cylinder body oil seal position 122 for preventing oil leakage and a positioning pit 123 for fixing the cylinder body 12 are arranged on the outer surface of the cylinder body 12, and an O-shaped ring is arranged outside. The piston 13 is provided with a check valve 133, the top of the piston is provided with a conical pit 138 for placing the head of the needle after pressure relief, the conical pit 138 is used for enabling the needle valve to be opened in parallel and preventing needle point abrasion, the outer surface of the piston 13 is provided with a piston oil seal position 132, an oil path of the check valve 133 is communicated with a main oil path 136, and a filter element cotton 131 is arranged at a position communicated with the oil path of the check valve in the main oil path 136.
The connecting main shaft 15 is provided with a convex edge 154, a shaft body 158 is arranged above the convex edge 154, the bottom of the connecting main shaft 15 is provided with a spring screw adjusting hole 157 which extends to the shaft body 158, a spring adjusting groove 152 is arranged in the vertical direction of the outer surface of the shaft body 158 and is communicated with the spring screw adjusting hole 157, a spring adjusting pin 153 penetrates through the spring adjusting groove 152, and an oil seal position 156 is arranged in the spring screw adjusting hole 157 to prevent oil from leaking from the spring screw adjusting hole 157.
The positioning component 20 comprises a pressure steel ball positioning piece 17 and a positioning bearing sleeve 18, wherein an O-shaped ring arranged in the pressure steel ball positioning piece 17 is sleeved on the lower part of the connecting main shaft 15 and is opposite to the convex edge 154, the pressure steel ball is clamped in the period, a pressure steel ball ring pit 155 is arranged at the bottom of the convex edge 154 and is correspondingly arranged with a ring pit 172 on the pressure steel ball positioning piece 17, a positioning pit 171 is arranged on the outer side of the pressure steel ball positioning piece 17 and is provided with an O-shaped ring for positioning, the O-shaped ring arranged in the positioning bearing sleeve 18 is sleeved on the connecting main shaft 15 and is abutted against the inner side of the shell 1 for positioning, an oil seal position is arranged on the outer side of the positioning bearing sleeve 18, and the O-shaped ring is arranged to prevent oil leakage. The spring adjusting screw 19 is screwed into the spring screw adjusting hole 157, and the tightness is adjusted by adjusting the pressure by screwing the position of the spring adjusting pin 153.
Example 1
As shown in fig. 2, the piston 13 is divided into two parts, the upper part is a piston body 137 installed in the inner cavity of the cylinder 12, the lower part is a hydraulic part 135, a shaft body 158 connected with the spindle 15 is provided with a flower socket 159, the hydraulic part 135 of the piston 13 and the flower socket 159 are installed in a tooth-to-tooth engagement manner, the spindle 15 is connected to rotate to drive the piston 13 to transmit, and reciprocate in the flower socket 159, a passage through which the piston 13 and the shaft body 158 are communicated is a main oil passage 136, the spindle 15 is connected to be provided with an oil inlet 151, and the oil inlet 151 is communicated with the main oil passage 136 and a hydraulic oil sump 161.
Example 2
As shown in fig. 3, another structure is installed between the piston 13 and the connecting main shaft 15, a hydraulic part 135 is fixedly connected to a shaft body 158 of the connecting main shaft 15, a flower part slot 159 is formed in the bottom of the piston 15, the hydraulic part 135 and the flower part slot 159 are installed in a tooth-to-tooth meshing manner, the connecting main shaft 15 rotates to drive the piston 13 to transmit, reciprocating motion is performed in the flower part slot 159, a main oil path 136 is formed in the piston 13, a flower part oil inlet notch 139 is formed between the hydraulic part 135 and the flower part slot 159, and hydraulic oil is pumped into the main oil path from the flower part oil inlet notch 139 under the action of pressure difference. Fig. 4 is a schematic structural view of the structure applied to the mandrel.
As shown in fig. 6, the hydraulic buffering hinge of the present invention has an upper hinge plate and a lower hinge plate sleeved outside a core shaft, a relatively rotatable device is installed between the two hinge plates, two screwing members are respectively installed on the upper and lower sides of the core shaft 1 and fixedly connected to the two hinge plates, the two screwing members are respectively fixedly installed on a cylinder body 12 and a connecting main shaft 15, and an upper end cover and a lower end cover are respectively installed on the upper and lower ends of the core shaft.
When the door is closed, the hydraulic hinge is in an initial state, the sliding sleeve stays at the top dead center of a peak of a track, a force is applied to the door when the door is opened, the hinge rotates to drive the connecting main shaft to rotate, the connecting main shaft drives the piston to rotate through the mutually meshed flower parts, the piston and the connecting main shaft rotate in the same direction, the sliding sleeve extends along the track formed between the cylinder body and the lower cam ring at the moment, the piston moves downwards to apply pressure to the main spring 16, at the moment, hydraulic oil is pumped into a main oil path from a hydraulic oil bin due to pressure difference, the filter core cotton is filtered and then released through the one-way valve, as shown in figure 5, when the sliding sleeve slides to a trough, the door is opened by 90 degrees, at the moment, the cylinder body is filled with hydraulic oil, the one-way valve is closed, the main spring 16 compresses the piston to apply an upward force to the piston, the piston applies pressure to the oil in the cylinder body, the pressure is transmitted to the valve needle 112, and the pressure spring 113 of the oil valve applies an upward pressure, the valve needle 112 is jacked up, hydraulic oil flows back to the hydraulic oil bin from the pressure relief oil path 126, buffering is achieved, and the hydraulic effect is fast and slow. When the track is a single-wave track, both sides can be opened when the door is closed, and when the track is a double-wave track, the hydraulic hinge can be used for a door facing 180 degrees, and both sides are opened. Finally, the piston reaches a certain point in the cylinder body to be contacted with the valve needle, the valve needle is completely ejected, pressure is instantly discharged, and the valve is locked.
The universal hydraulic hinge for preventing violence of the invention drives the piston 13 to rotate and drive the sliding sleeve to move according to the track through connecting the main shaft 15 flower part position, the track is of a wave structure, the shaft sleeve can move in any direction according to the rotating direction of the connecting main shaft, the hydraulic hinge can be operated in all directions in installation and use, the positioning parts and the oil seal positions are arranged at the upper part and the lower part in the core shaft, the stability of internal parts is ensured, the oil leakage problem of the hydraulic hinge is solved, the tightness of the spring is adjusted by the arrangement of the spring adjusting screw, the main oil path, the check valve and the oil inlet hole are scientifically and reasonably designed, and the spring structure of the valve needle assembly can not generate the damage of the parts and the door body even if the force is large when the door is opened and closed by violence. The filter element cotton and the strong magnetic particles are arranged to filter and adsorb impurities in oil, so that smoothness of an oil path is guaranteed, the service life is prolonged, and the maintenance rate is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A mandrel, characterized by: the valve needle assembly, the cylinder body, the lower cam ring, the main spring, the connecting main shaft and the positioning device are sequentially arranged in the shell from top to bottom, a waveform track is formed between the cylinder body and the lower cam ring fixedly arranged in the shell, the side wall of the piston is provided with a sliding sleeve which is sleeved in the waveform track to guide and slide, the waveform track is formed by two pairs of wave crests and wave troughs in a 360-degree circumferential range, the connecting main shaft and the piston are arranged in a tooth-to-tooth meshing manner, the connecting main shaft rotates to drive the piston to rotate in any direction from left to right, the piston is provided with a one-way valve, an oil way of the one-way valve is communicated with the main oil way, the connecting main shaft is provided with an oil inlet hole which is communicated with the main oil way and a hydraulic oil bin, the piston is guided downwards by the sliding sleeve, and moves up and down in the cylinder body due to external force and the main spring, the pressure difference is generated between the cylinder inner cavity and the hydraulic oil bin to cause the hydraulic oil to flow; the cylinder body is provided with an adjusting screw position, the adjusting screw position is communicated with an inner cavity of the cylinder body through a cone valve hole, and the side wall of the cone valve hole is provided with a pressure relief oil way.
2. The mandrel of claim 1 wherein said valve pin assembly comprises a spring adjusting screw, a fuel valve pressure spring and a valve pin mounted in said adjusting screw position from top to bottom.
3. The mandrel as claimed in claim 1, wherein the piston is in communication with the connecting main shaft through a main oil passage, and the connecting main shaft is provided with an oil inlet hole for communicating the main oil passage with the hydraulic oil sump.
4. A mandrel as claimed in claim 1 wherein said main spring is mounted between the bottom of the piston and a spring adjustment pin inserted into the connecting shaft.
5. The mandrel of claim 1, wherein: the piston is provided with a sliding sleeve.
6. The mandrel of claim 1, wherein: two sliding sleeves are oppositely arranged on the piston at 180 degrees.
7. An anti-violence universal hydraulic hinge, comprising two hinge plates, a mandrel according to any one of claims 1 to 6 and two screws mounted on the two ends of the mandrel, said hinge plates being mounted on the mandrel and connected to the two screws respectively, and relative rotation means being mounted between the hinge plates.
8. The universal hydraulic hinge of claim 7, wherein the two screws at the upper and lower ends of the shaft are respectively provided with an upper end cover and a lower end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874254.9A CN110499984B (en) | 2019-09-17 | 2019-09-17 | Dabber and device have universal hydraulic hinge of violence prevention of this dabber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874254.9A CN110499984B (en) | 2019-09-17 | 2019-09-17 | Dabber and device have universal hydraulic hinge of violence prevention of this dabber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110499984A CN110499984A (en) | 2019-11-26 |
| CN110499984B true CN110499984B (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874254.9A Active CN110499984B (en) | 2019-09-17 | 2019-09-17 | Dabber and device have universal hydraulic hinge of violence prevention of this dabber |
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| Country | Link |
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| CN (1) | CN110499984B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212478882U (en) * | 2020-09-22 | 2021-02-05 | 肇庆市高要区兆高金属科技有限公司 | Bidirectional opening and closing door shaft |
| CN213742839U (en) * | 2020-09-22 | 2021-07-20 | 肇庆市高要区兆高金属科技有限公司 | Hydraulic buffering hinge |
| CN213540043U (en) * | 2020-09-22 | 2021-06-25 | 肇庆市高要区兆高金属科技有限公司 | Self-closing hydraulic buffer hinge |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152029A (en) * | 1991-08-12 | 1992-10-06 | King Chain Precision Industry Co., Ltd. | Hydraulic hinge |
| JP3732651B2 (en) * | 1998-04-16 | 2006-01-05 | 加藤電機株式会社 | Opening / closing hinge |
| JP4651684B2 (en) * | 2008-02-05 | 2011-03-16 | 株式会社サワ | Automatic door hinge for double opening and double door structure |
| EP2186983A1 (en) * | 2008-11-14 | 2010-05-19 | Joseph Talpe | Bidirectional closing mechanism |
| CN202347989U (en) * | 2011-10-25 | 2012-07-25 | 伍肇坚 | Multifunctional hinge core shaft |
| CN204677838U (en) * | 2015-06-09 | 2015-09-30 | 武汉东江阀业制造有限公司 | Ultrahigh pressure direct-acting type transient equilibrium valve |
| CN208534273U (en) * | 2018-05-05 | 2019-02-22 | 欧佳昌 | A kind of two-way folding hydraulic buffering hinge |
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- 2019-09-17 CN CN201910874254.9A patent/CN110499984B/en active Active
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| CN110499984A (en) | 2019-11-26 |
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Effective date of registration: 20231031 Address after: 526000 No. 16, Longde lane, team 6, Wujia village, Jinsan village committee, Jinli Town, Gaoyao City, Zhaoqing City, Guangdong Province Patentee after: Deng Jieming Patentee after: Zhou Liuji Address before: 526105 No. 16, Longde lane, team 6, Wujia village, Jinsan village committee, Jinli Town, Gaoyao District, Zhaoqing City, Guangdong Province Patentee before: Deng Jieming Patentee before: Zhou Liuji Patentee before: Hu Guangwen |