CN117231749B - Water filling valve for hydropower station gate - Google Patents
Water filling valve for hydropower station gate Download PDFInfo
- Publication number
- CN117231749B CN117231749B CN202311493321.5A CN202311493321A CN117231749B CN 117231749 B CN117231749 B CN 117231749B CN 202311493321 A CN202311493321 A CN 202311493321A CN 117231749 B CN117231749 B CN 117231749B
- Authority
- CN
- China
- Prior art keywords
- wall
- fixedly arranged
- groove
- plug
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims description 41
- 230000000670 limiting effect Effects 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 29
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 12
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Sliding Valves (AREA)
Abstract
The invention relates to the technical field of water filling valves, in particular to a water filling valve for a hydropower station gate, which comprises a valve body, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe, wherein the valve body comprises a transmission channel, a containing groove arranged in the transmission channel, and a frustum surface arranged on the containing groove; the lifting mechanism comprises a hoist fixedly arranged at the top end of the transmission channel, a screw fixedly arranged at the control end of the hoist, and a thread bush which is in threaded connection with the screw, wherein the outer wall of the thread bush is fixedly provided with a limit strip; the plugging mechanism is characterized in that the water flow channel is gradually increased in the process of continuously operating the hoist to control the threaded sleeve to ascend in a three-section opening mode, and a certain transition and buffering time exists, so that the water pressure can be effectively balanced, the valve core structure can be effectively protected in a gradual closing and plugging mode, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of water filling valves, in particular to a water filling valve for a hydropower station gate.
Background
The hydropower station gate needs to use the maintenance gate in the maintenance or repair process, cuts off rivers through the maintenance gate in the in-process of maintenance, overhauls or repairs the gate at rear, is equipped with the water filling valve on the maintenance gate generally, and its effect is after the maintenance finishes, fills water through the water filling valve with between the maintenance gate and between the gate that is overhauld, keeps water level height unanimity, when the follow-up gate that withdraws, can protect the gate at rear.
Because the water pressure of the hydropower station is large, when the water filling valve is opened and closed, the movement opening and closing degree of the valve core needs to be ensured to be small, and the valve core of the conventional water filling valve is easy to damage the valve core because of too high water flow cutting speed or too high water flow inlet speed in the opening and closing process.
Disclosure of Invention
The present invention has been made in view of the above or the problem of the prior art that the valve element is vulnerable.
It is therefore an object of the present invention to provide a water filling valve for a hydroelectric power gate.
In order to solve the technical problems, the invention provides the following technical scheme: the water filling valve for the hydropower station gate comprises a valve body, a conical table surface and a water inlet pipe, wherein the valve body comprises a transmission channel, a containing groove arranged in the transmission channel, and the conical table surface is arranged on the containing groove; the lifting mechanism comprises a hoist fixedly arranged at the top end of the transmission channel, a screw fixedly arranged at the control end of the hoist, and a thread bush which is in threaded connection with the screw, wherein the outer wall of the thread bush is fixedly provided with a limit strip; the plugging mechanism comprises a plugging assembly fixedly arranged at the bottom end of the thread bush, a primary plugging assembly arranged on the outer wall of the thread bush, and a secondary plugging assembly arranged on the outer wall of the thread bush; the first-stage blocking assembly comprises a limiting piece fixedly arranged on the outer wall of the threaded sleeve, a sliding piece slidingly arranged on the limiting piece, and a first-stage blocking block fixedly arranged on the sliding piece, wherein a supporting ring is fixedly arranged on the outer wall of the threaded sleeve, and a first spring is fixedly arranged at the bottom end of the supporting ring; the secondary blocking assembly comprises a sleeve fixedly arranged on the limiting strip, a connecting column slidingly arranged on the inner wall of the sleeve, a stop block fixedly arranged at the end part of the connecting column, and a secondary blocking block fixedly arranged at the end part of the connecting column, wherein a second spring is sleeved on the outer wall of the connecting column.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the accommodating groove comprises an accommodating groove and a sliding groove which are arranged in the transmission channel, wherein the sliding groove is provided with a limiting groove, and the accommodating groove also comprises a slot which is arranged on the limiting groove; the inner wall of the chute is in sliding connection with the outer wall of the thread bush; the inner wall of the limit groove is in sliding connection with the outer wall of the limit strip; the inner wall of the slot is in sliding connection with the outer wall of the stop block.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the plug assembly comprises a plug fixedly arranged at the end part of the threaded sleeve, a diversion trench arranged on the outer surface of the plug, and a conical surface arranged at the end part of the plug.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the limiting piece comprises an extrusion strip fixedly arranged on the outer wall of the threaded sleeve and a guide groove arranged on the extrusion strip; the sliding piece comprises a guide block which is arranged on the guide groove in a sliding manner, a support arm which is fixedly arranged on the guide block, and a lower ring body which is fixedly arranged on the outer wall of the support arm.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the first-stage plugging block comprises a first-stage plugging block fixedly arranged at the bottom end of the supporting arm, and a first binding surface and a first intrados surface are arranged on the first-stage plugging block.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the secondary plugging block comprises a secondary plugging block fixedly arranged at the bottom end of the connecting column, and a second joint surface and a second intrados surface are arranged on the secondary plugging block.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the length of the upper arc edge of the first inner arc surface is longer than that of the lower arc edge of the first inner arc surface; the length of the upper arc edge of the second inner arc surface is smaller than that of the lower arc edge of the second inner arc surface.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the valve body further comprises an expanded drain pipe fixedly arranged at the bottom end of the transmission channel; the buffer mechanism comprises a transmission channel, a communicating pipe on the diameter-expanding drain pipe, a movable groove on the inner wall of the communicating pipe, a gasket fixedly installed on the inner wall of the movable groove, a third spring fixedly installed on the end part of the gasket, a sealing plug sliding in the movable groove, and a sealing ring arranged on the outer wall of the sealing plug.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the accommodating groove further comprises a sealing groove which is arranged in the sliding groove; and a sealing ring is arranged on the inner wall of the sealing groove.
As a preferred embodiment of the water filling valve for a hydropower station gate of the invention, wherein: the bottom end of the extrusion strip is provided with an extrusion surface; the plug assembly further comprises an extrusion arc strip fixedly arranged on the outer wall of the plug.
The water filling valve for the hydropower station gate has the beneficial effects that: according to the invention, in the process of continuously operating the control threaded sleeve to ascend by a three-section opening mode, the water flow channels are gradually increased, a certain transition and buffering time exists, so that the water pressure can be effectively balanced, the water flow channels are gradually reduced when the control water flow channels are closed, the situation that the valve core is excessively stressed can be effectively avoided, after the secondary plugging block abuts against the conical table surface, the channel section is reduced, and meanwhile, the secondary plugging block only plugs part of the circulating channels, so that the water pressure impact force received by the secondary plugging block is lower, under the action of the water pressure, the channel section is reduced, after the primary plugging block abuts against the conical table surface, the primary plugging block only plugs part of the circulating channels, so that the received water pressure impact force is lower, and under the action of the water pressure, the secondary plugging block can keep the effect of the conical table surface, the water flow is reduced, the pressure received by the secondary plugging block after the subsequent plugging assembly is inserted into the center of the primary plugging block and the secondary plugging block is effectively reduced, the valve core is gradually closed and lifted, and the service life of the valve core can be effectively prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall schematic diagram of a water fill valve for a hydropower station gate.
Fig. 2 is a schematic diagram of the internal structure of a valve body of a water filling valve for a hydropower station gate.
Fig. 3 is a schematic structural diagram of a buffering mechanism of a water filling valve for a hydropower station gate.
Fig. 4 is a schematic view of a structure of a receiving tank of a water filling valve for a hydropower station gate.
Fig. 5 is a schematic diagram of a plugging mechanism of a water filling valve for a hydropower station gate.
Fig. 6 is a schematic structural view of a plug assembly of a water filling valve for a hydropower station gate.
FIG. 7 is a schematic view of a primary plugging assembly of a water filling valve for a hydropower station gate.
FIG. 8 is a schematic diagram of a secondary plugging assembly of a water filling valve for a hydropower station gate.
FIG. 9 is a schematic view of the connection of the slider and the primary plug of the filling valve for the hydropower station gate.
FIG. 10 is a schematic diagram of a two-stage block structure of a fill valve for a hydropower station gate.
FIG. 11 is a schematic view of the construction of a primary and secondary block joint of a water filling valve for a hydropower station gate.
In the figure: 100. a valve body; 101. a transmission channel; 102. a receiving groove; 103. a conical table top; 104. a water inlet pipe; 105. a diameter-expanded drain pipe; 102a, a receiving groove; 102b, a chute; 102c, a limit groove; 102d, a slot; 102e, sealing the groove; 102f, a sealing ring; 200. a lifting mechanism; 201. a hoist; 202. a screw; 203. a thread sleeve; 204. a limit bar; 300. a plugging mechanism; 301. a plug assembly; 302. a primary plugging assembly; 303. a secondary plugging assembly; 301a, a plug; 301b, diversion trenches; 301c, conical surface; 301d, extruding an arc strip; 302a, a limiting piece; 302b, a slider; 302c, a support ring; 302d, a primary blocking block; 302e, a first spring; 302a-1, extruded strip; 302a-2, guide slots; 302a-3, an extrusion face; 302b-1, support arm; 302b-2, a boot block; 302b-3, lower ring body; 302d-1, first level plug; 302d-2, a first bonding surface; 302d-3, a first intrados surface; 303a, a sleeve; 303b, connecting posts; 303c, a stop; 303d, a secondary plugging block; 303e, spring number two; 303d-1, a secondary plug; 303d-2, a second bonding surface; 303d-3, a second intrados surface; 400. a buffer mechanism; 401. a communicating pipe; 402. a movable groove; 403. a gasket; 404. a third spring; 405. a sealing plug; 406. and (3) sealing rings.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Embodiment 1, referring to fig. 1 to 8, is a first embodiment of the present invention, and provides a water filling valve for a hydropower station gate, which includes a valve body 100 including a transmission channel 101, a receiving groove 102 disposed in the transmission channel 101, and a frustum surface 103 disposed on the receiving groove 102, wherein a water inlet pipe 104 is fixedly disposed on a surface of the transmission channel 101; in this embodiment, the conical table 103 is disposed at the bottom end of the accommodating groove 102, the water inlet pipe 104 and the transmission channel 101 are in a communicating state, the bottom end of the transmission channel 101 is provided with a water outlet, the end of the water inlet pipe 104 is fixedly provided with a flange, and the water inlet pipe 104 and the inspection gate can be installed through the flange.
The lifting mechanism 200 comprises a hoist 201 fixedly arranged at the top end of the transmission channel 101, a screw 202 fixedly arranged at the control end of the hoist 201, and a thread bush 203 in threaded connection with the screw 202, wherein a limit strip 204 is fixedly arranged on the outer wall of the thread bush 203; in this embodiment, the headstock gear 201 can control the screw rod 202 to rotate after being started, and the screw rod 202 can drive the thread bush 203 to slide and lift when rotating, and the movement of the thread bush 203 can be limited through the limiting strips 204, and the limiting strips 204 are provided with two and are symmetrically arranged on the outer wall of the thread bush 203.
The plugging mechanism 300 comprises a plug assembly 301 fixedly arranged at the bottom end of the threaded sleeve 203, a primary plugging assembly 302 arranged on the outer wall of the threaded sleeve 203, and a secondary plugging assembly 303 arranged on the outer wall of the threaded sleeve 203; in this embodiment, the plug assembly 301 is lifted together when the threaded sleeve 203 is lifted, and in the process of lifting the threaded sleeve 203, the plug assembly 301 is lifted first, the primary plugging assembly 302 is lifted together after the plug assembly 301 is lifted to a certain distance, and the secondary plugging assembly 303 is lifted together after the primary plugging assembly 302 is lifted to a certain distance, so as to form multiple channel openings.
Specifically, the primary plugging assembly 302 includes a limiting member 302a fixedly arranged on the outer wall of the threaded sleeve 203, a sliding member 302b slidably arranged on the limiting member 302a, and a primary plugging block 302d fixedly arranged on the sliding member 302b, wherein a supporting ring 302c is fixedly arranged on the outer wall of the threaded sleeve 203, and a first spring 302e is fixedly arranged at the bottom end of the supporting ring 302 c; in this embodiment, two limiting members 302a are symmetrically disposed on the outer wall of the threaded sleeve 203, two sliding members 302b are disposed in a one-to-one correspondence with the limiting members 302a, each sliding member 302b is fixedly provided with a first-stage blocking block 302d, the sliding members 302b can slide under the limiting action of the limiting members 302a, the sliding distance of the sliding members 302b can be limited by the limiting members 302a, the sliding members 302b can be pushed by the elastic force of the first-stage springs 302e to keep a sliding trend, the first-stage blocking blocks 302d cannot immediately rise when the threaded sleeve 203 drives the plugging assembly 301 to rise, and the first-stage blocking blocks 302d can be driven to rise together only when the rising distance of the plugging assembly 301 reaches the sliding distance of the limiting members 302b limited by the limiting members 302a, so that the channel is opened.
Specifically, the second-stage blocking assembly 303 includes a sleeve 303a fixedly arranged on the limiting strip 204, and a connecting column 303b slidably arranged on an inner wall of the sleeve 303a, a stop block 303c is fixedly arranged at an end portion of the connecting column 303b, a second-stage blocking block 303d fixedly arranged at an end portion of the connecting column 303b is further included, a second spring 303e is sleeved on an outer wall of the connecting column 303b, in this embodiment, a sleeve 303a is correspondingly arranged on each limiting strip 204, connecting columns 303b are slidably connected to inner walls of the two sleeves 303a, a stop block 303c is fixedly arranged at one end, far away from the plug assembly 301, of each connecting column 303b, a second-stage blocking block 303d is fixedly arranged at one end, far away from the stop block 303c, of each connecting column 303b, and two ends of the second spring 303e are respectively attached to a surface of the second-stage blocking block 303d and an end portion of the sleeve 303 a.
It should be noted that, the slidable distance of the connecting post 303b on the inner wall of the sleeve 303a is greater than the slidable distance of the sliding member 302b, when the threaded sleeve 203 drives the primary blocking block 302d to rise simultaneously, the secondary blocking block 303d can be pushed to keep a state of being attached to the conical table surface 103 under the action of the elastic force of the secondary spring 303e, so that when the primary blocking block 302d rises, the secondary blocking block 303d cannot rise immediately until the sleeve 303a slides to collide with the stop block 303c, and at this time, the rising of the threaded sleeve 203 drives the secondary blocking block 303d to rise simultaneously, so that the channel opening is further increased.
Specifically, the accommodating groove 102 includes an accommodating groove 102a and a sliding groove 102b disposed in the transmission channel 101, the sliding groove 102b is provided with a limiting groove 102c, and further includes a slot 102d disposed on the limiting groove 102 c; in the present embodiment, the inner wall of the chute 102b is slidably connected with the outer wall of the thread bush 203; the inner wall of the limit groove 102c is in sliding connection with the outer wall of the limit strip 204; through spacing groove 102c cooperation spacing 204 can carry out spacingly to the motion of thread bush 203, avoids thread bush 203 to rotate, and slot 102 d's inner wall and dog 303 c's outer wall sliding connection can increase the intensity and the stability of second grade jam piece 303d through slot 102d to dog 303 c's spacing to sleeve 303a can rise into slot 102d inside after sliding, further increase the intensity and the stability of second grade jam piece 303 d.
Further, the accommodating groove 102 further includes a sealing groove 102e disposed in the sliding groove 102 b; the inner wall of the seal groove 102e is provided with a seal ring 102f, and in this embodiment, the inner wall of the seal ring 102f is closely attached to the outer wall of the thread bush 203, and the seal between the thread bush 203 and the slide groove 102b can be increased by the seal ring 102 f.
When the hydraulic pressure control device is used, the flange plate on the water inlet pipe 104 is connected with the overhaul gate, when water is required to drain the overhaul gate so as to balance the water pressure in front of the overhaul gate, the screw 202 is controlled to rotate through the headstock gear 201, the threaded sleeve 203 is driven to lift through the rotation of the screw 202, the plug assembly 301 is driven to lift when the threaded sleeve 203 is lifted, after the plug assembly 301 is lifted, due to the elastic force of the first spring 302e, the sliding of the upper sliding piece 302b on the limiting piece 302a is matched, the joint state of the first-stage blocking block 302d and the frustum surface 103 can be maintained, meanwhile, due to the elastic force of the second spring 303e, the joint state of the second-stage blocking assembly 303 and the frustum surface 103 can be maintained, a channel for liquid circulation is formed between the centers of the first-stage blocking assembly 302 and the second-stage blocking assembly 303 and the plug assembly 301, at this time, water can enter the inside of the transmission channel 101 through the water inlet pipe 104, and is discharged through the bottom end of the transmission channel 101, the opening degree of the water channel is smaller, and the impact capacity of water flow is weaker.
As the elevation of the plug assembly 301 increases, the channels formed between the centers of the primary and secondary plug assemblies 302 and 303 and the plug assembly 301 gradually open to a maximum, and as the threaded sleeve 203 continues to rise, after the sliding member 302b slides to a slidable maximum distance, the continued rise of the threaded sleeve 203 will drive the primary plug block 302d to rise together, thereby raising the primary plug block 302d, and the drainage channel will gradually increase as the primary plug block 302d rises.
As the rising height of the primary plugging block 302d increases, the stop 303c at the end of the connecting post 303b eventually collides with the end of the sleeve 303a, and after the collision, the secondary plugging block 303d rises together with the rising of the threaded sleeve 203, and the drainage channel is further enlarged by the rising of the secondary plugging block 303d, so that the drainage efficiency is highest.
When the water draining is closed, the threaded sleeve 203 is controlled to descend through the headstock gear 201, in the descending process, under the action of the elastic force of the No. two spring 303e, the second-stage blocking block 303d is attached to the conical table surface 103, due to the fact that only part of the flow area is blocked in the blocking process, the second-stage blocking block 303d can be pushed into the flow channel of water flow by means of the elastic force of the No. two spring 303e, the second-stage blocking block 302d can be attached to the surface of the conical table surface 103 by means of water pressure, along with the continuous descending of the threaded sleeve 203, the first-stage blocking block 302d descends, due to the fact that only part of the flow area is blocked, the first-stage blocking block 302d can be pushed into the flow channel of water flow by means of the elastic force provided by the No. one spring 302e, and finally, the threaded sleeve 203 is in rigid connection with the plug assembly 301, and the flow channel section of water flow can be obviously reduced at the moment, the water pressure can be lowered relatively, the plug assembly 301 can be inserted into the centers of the first-stage blocking block 302d and the second-stage blocking block 303d more smoothly, and the water flow channel can be prevented from being damaged by the first-stage blocking block 302d and the plug assembly, and the water drain outlet 101 can be prevented from being damaged by the valve core structure.
In summary, through the three-section mode of opening, the in-process that control screw thread cover 203 was risen is kept running to headstock gear 201, and there is certain transition and buffering time, can effectual balanced water pressure, the same reason, when control water flow channel was closed, the gradual water flow channel that falls down, can effectively avoid the case atress excessive condition to appear, after the cone mesa 103 is contradicted to second grade chock 303d, the passageway cross-section reduces, second grade chock 303d has only plugged up partial circulation passageway simultaneously, consequently, the hydraulic impact force that receives is lower, and under the hydraulic effect, second grade chock 303d can keep laminating effect with the frustum face 103, the same reason, after the cone mesa 103 is contradicted to first grade chock 302d, the passageway cross-section reduces, first grade chock 302d has only plugged up partial circulation passageway, consequently, and under the hydraulic impact force that receives, and under the hydraulic effect, second grade chock 303d can keep and the cone mesa 103 laminating effect, the water flow's reduction, also can effectively reduce the plug assembly of follow-up and insert the second grade chock 302d and receive the centre of second grade chock, the life-span structure is effectively closed with the protection.
In embodiment 2, referring to fig. 1 to 10, in the second embodiment of the present invention, unlike the previous embodiment, the plug assembly 301 includes a plug 301a fixedly disposed at the end of the threaded sleeve 203, a guide groove 301b disposed at the outer surface of the plug 301a, and a tapered surface 301c disposed at the end of the plug 301a, in this embodiment, the outer surface of the plug 301a is uniformly provided with a plurality of guide grooves 301b circumferentially distributed at equal intervals, the bottom end of the plug 301a is provided with a tapered surface 301c, in the process of pulling out the center of the plug 301a from the first-stage plugging block 302d and the second-stage plugging block 303d, a channel through which the liquid flows is formed by the guide groove 301b, and after the exposed portion of the guide groove 301b gradually increases, the channel through which the liquid flows gradually increases until the flow cross section is equal to the sum of the cross sections of all the guide grooves 301b, after the tapered surface 301c is exposed, and after the tapered surface 301c is capable of gradually increasing the channel cross section again with the rising of the plug 301a under the action of the tapered surface 301c, so that the change of the channel is more stable, and the compression structure is avoided.
Specifically, the limiting member 302a includes an extrusion strip 302a-1 fixedly disposed on the outer wall of the threaded sleeve 203, and a guide groove 302a-2 disposed on the extrusion strip 302 a-1; in this embodiment, the extrusion strip 302a-1 is fixedly disposed on an outer wall of one end of the threaded sleeve 203, which is close to the plug 301a, and a guiding groove 302a-2 is formed in the extrusion strip 302 a-1.
Preferably, the sliding member 302b includes a guide block 302b-2 slidably disposed in the guide groove 302a-2, a support arm 302b-1 fixedly disposed on the guide block 302b-2, and a lower ring 302b-3 fixedly disposed on an outer wall of the support arm 302b-1, wherein in this embodiment, two guide blocks 302b-2 are disposed, and the two guide blocks 302b-2 and the guide groove 302a-2 on the extrusion strip 302a-1 correspond to each other, the guide block 302b-2 is capable of sliding on an inner wall of the guide groove 302a-2, the support arm 302b-1 is fixedly disposed on an outer wall of each guide block 302b-2, the bottom end of the support arm 302b-1 is fixedly connected with a top surface of the primary plugging block 302d, the bottom end outer wall of the support arm 302b-1 is fixedly disposed with the lower ring 302b-3, and the bottom end of the primary spring 302e is fixedly connected with a top end surface of the lower ring 302b-3 through the lower ring 302 b-3.
In the initial state, the outer walls of the primary blocking block 302d and the secondary blocking block 303d are attached to the surface of the frustum surface 103, the plug 301a is inserted into the centers of the primary blocking block 302d and the secondary blocking block 303d, the guide block 302b-2 is located at one end of the guide groove 302a-2 close to the limit strip 204, during the process that the headstock gear 201 controls the threaded sleeve 203 to ascend, the guide block 302b-2 slides in the guide groove 302a-2 under the action of the elastic force of the first spring 302e, at this time, the attachment of the primary blocking block 302d and the inner wall of the frustum surface 103 can be kept under the elastic force of the first spring 302e until the guide block 302b-2 slides to one end of the guide groove 302a-2 far away from the limit strip 204, at this time, the ascending of the threaded sleeve 203 drives the primary blocking block 302d to ascend simultaneously, and the purpose of opening the channel step by step is achieved.
Further, the primary plugging block 302d includes a primary plugging block 302d-1 fixedly disposed at the bottom end of the support arm 302b-1, a first bonding surface 302d-2 and a first intrados surface 302d-3 are disposed on the primary plugging block 302d-1, in this embodiment, the top end of the primary plugging block 302d-1 is fixedly connected with the bottom end of the lower ring body 302b-3, the two primary plugging blocks 302d-1 are symmetrically disposed on the lower ring body 302b-3, the outer surface of the primary plugging block 302d-1 is a conical surface, and the sizes of the first intrados surface 302d-3 and the outer wall of the plug 301a are mutually matched.
Preferably, the secondary plugging block 303d includes a secondary plugging block 303d-1 fixedly disposed at the bottom end of the connecting column 303b, the secondary plugging block 303d-1 is provided with a second bonding surface 303d-2 and a second intrados surface 303d-3, and in this embodiment, the dimensions of the second intrados surface 303d-3 on the secondary plugging block 303d-1 and the outer wall of the plug 301a are matched with each other.
Preferably, the upper end arcuate edge length of the first intrados surface 302d-3 is greater than the lower end arcuate edge length of the first intrados surface 302 d-3; in this embodiment, since the upper arc edge length of the first intrados 302d-3 is greater than the lower arc edge length of the first intrados 302d-3 and the upper arc edge length of the second intrados 303d-3 is less than the lower arc edge length of the second intrados 303d-3, the second insert 303d-1 and the first insert 302d-1 can only be lifted after the first insert 302d-1 is lifted during the lifting process, and the first bonding surface 302d-2 can squeeze the second bonding surface 303d-2 on the second insert 303d-1 when the first insert 302d-1 is lowered close to the taper surface 103, thereby increasing the strength of the second insert 303d-1 and the taper surface 103 and ensuring the bonding sequence of the second insert 303d-1 and the first insert 302 d-1.
Further, the bottom end of the extrusion strip 302a-1 is provided with an extrusion surface 302a-3; the plug assembly 301 further includes a pressing arc strip 301d fixedly disposed on an outer wall of the plug 301a, in this embodiment, the pressing arc strip 301d is fixedly disposed on an end of the pressing strip 302a-1 adjacent to the first inner arc surface 302d-1, and after the first inner arc surface 302d-1 abuts against the taper surface 103 when the thread sleeve 203 descends, the continued descent of the thread sleeve 203 causes the plug 301a to be inserted into the central portion of the first inner arc surface 302d-1 and the second inner arc surface 303d-1, the outer wall of the plug 301a abuts against the first inner arc surface 302d-3 and the second inner arc surface 303d-3 until the guide groove 301b on the plug 301a completely enters into a space formed by the first inner arc surface 302d-3 and the second inner arc surface 303d-3, the pressing arc strip 301d abuts against the first inner arc surface 302d-1 and the second inner arc surface 303d-1, and the first inner arc surface 302d-3 abuts against the surface of the first inner arc surface 302d-1, thereby lifting the first inner arc surface 302a-3 and the second arc surface 303d-1, and sealing the first inner arc surface and the second arc surface 303 d-1.
The rest of the structure is the same as in embodiment 1.
Embodiment 3 referring to fig. 1 to 11, which is a third embodiment of the present invention, unlike the previous embodiment, the valve body 100 further includes an expanded drain pipe 105 fixedly disposed at the bottom end of the transmission channel 101; in this embodiment, the inner surface diameter of the expanded drain pipe 105 is increased from top to bottom and then kept constant, and by providing the expanded drain pipe 105, the cross section during drainage can be increased, and thus the flow rate of drainage can be reduced, and the impact during drainage can be reduced.
Still include buffer gear 400, it includes fixed communicating pipe 401 of locating on transmission channel 101 and the expanded drain pipe 105, and locate the movable groove 402 of communicating pipe 401 inner wall, the inner wall fixed mounting of movable groove 402 has packing ring 403, the tip fixed mounting of packing ring 403 has No. three spring 404, still including sliding the sealing plug 405 of locating in the movable groove 402, the outer wall of sealing plug 405 is equipped with sealing washer 406, in this embodiment, communicating pipe 401 is U-shaped structure, communicating pipe 401 and transmission channel 101 and expanded drain pipe 105 are the intercommunication state, can promote sealing plug 405 and keep away from packing ring 403 through the elasticity of No. three spring 404, can increase the leakproofness between sealing plug 405 and the movable groove 402 through sealing washer 406.
The rest of the structure is the same as in embodiment 2.
When the outer walls of the primary plugging block 302d and the secondary plugging block 303d are attached to the surface of the frustum surface 103, and the plug 301a is inserted into the center of the primary plugging block 302d and the secondary plugging block 303d, the transmission channel 101 and the expanded-diameter drain pipe 105 are not communicated, water can enter the communicating pipe 401, the water pressure pushes the sealing plug 405 to slide on the inner wall of the movable groove 402, the third spring 404 is compressed, and meanwhile, the water pressure acts on the surfaces of the primary plugging block 302d-1 and the secondary plugging block 303d-1, so that the primary plugging block 302d-1 and the secondary plugging block 303d-1 are attached to the frustum surface 103 more tightly.
In the process of opening the water flow channel between the transmission channel 101 and the expanded drain pipe 105, water flows, the flow speed increases, the pressure is reduced according to the Bernoulli principle, the pressure received by the sealing plug 405 changes, the compression degree of the third spring 404 changes, the sealing plug 405 slides, the impact force of water flow can be further buffered through the sliding of the sealing plug 405, and the damage of the structure is avoided.
In the process of closing the water flow channel between the transmission channel 101 and the expanded drain pipe 105, the change of the flow velocity at this time generates impact, and the impact force can be buffered by the compression of the third spring 404 and the sliding of the upper sealing plug 405, so that the structural damage during the closing of the channel is avoided.
In conclusion, the valve core structure can be effectively protected, and the service life is prolonged.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (4)
1. A water filling valve for a hydropower station gate, which is characterized in that: comprising the steps of (a) a step of,
the valve body (100) comprises a transmission channel (101), a containing groove (102) arranged in the transmission channel (101), and a frustum surface (103) arranged on the containing groove (102), wherein a water inlet pipe (104) is fixedly arranged on the surface of the transmission channel (101);
the lifting mechanism (200) comprises a hoist (201) fixedly arranged at the top end of the transmission channel (101), a screw (202) fixedly arranged at the control end of the hoist (201), and a thread sleeve (203) in threaded connection with the screw (202), wherein a limit strip (204) is fixedly arranged on the outer wall of the thread sleeve (203);
the plugging mechanism (300) comprises a plugging component (301) fixedly arranged at the bottom end of the threaded sleeve (203), a primary plugging component (302) arranged on the outer wall of the threaded sleeve (203), and a secondary plugging component (303) arranged on the outer wall of the threaded sleeve (203);
the primary blocking assembly (302) comprises a limiting piece (302 a) fixedly arranged on the outer wall of the threaded sleeve (203), a sliding piece (302 b) slidingly arranged on the limiting piece (302 a), and a primary blocking block (302 d) fixedly arranged on the sliding piece (302 b), wherein a supporting ring (302 c) is fixedly arranged on the outer wall of the threaded sleeve (203), and a first spring (302 e) is fixedly arranged at the bottom end of the supporting ring (302 c);
the secondary blocking assembly (303) comprises a sleeve (303 a) fixedly arranged on the limiting strip (204), a connecting column (303 b) slidingly arranged on the inner wall of the sleeve (303 a), a stop block (303 c) fixedly arranged at the end part of the connecting column (303 b), and a secondary blocking block (303 d) fixedly arranged at the end part of the connecting column (303 b), wherein a second spring (303 e) is sleeved on the outer wall of the connecting column (303 b);
the accommodating groove (102) comprises an accommodating groove (102 a) and a sliding groove (102 b) which are arranged in the transmission channel (101), wherein the sliding groove (102 b) is provided with a limiting groove (102 c), and the accommodating groove also comprises a slot (102 d) arranged on the limiting groove (102 c);
the inner wall of the chute (102 b) is in sliding connection with the outer wall of the thread bush (203);
the inner wall of the limit groove (102 c) is in sliding connection with the outer wall of the limit strip (204);
the inner wall of the slot (102 d) is in sliding connection with the outer wall of the stop block (303 c);
the plug assembly (301) comprises a plug (301 a) fixedly arranged at the end part of the threaded sleeve (203), a diversion trench (301 b) arranged on the outer surface of the plug (301 a), and a conical surface (301 c) arranged at the end part of the plug (301 a);
the limiting piece (302 a) comprises an extrusion strip (302 a-1) fixedly arranged on the outer wall of the threaded sleeve (203), and a guide groove (302 a-2) arranged on the extrusion strip (302 a-1);
the sliding piece (302 b) comprises a guide block (302 b-2) which is arranged on the guide groove (302 a-2) in a sliding manner, a supporting arm (302 b-1) which is fixedly arranged on the guide block (302 b-2), and a lower ring body (302 b-3) which is fixedly arranged on the outer wall of the supporting arm (302 b-1);
the primary blocking block (302 d) comprises a primary inserting block (302 d-1) fixedly arranged at the bottom end of the supporting arm (302 b-1), and a first attaching surface (302 d-2) and a first intrados surface (302 d-3) are arranged on the primary inserting block (302 d-1);
the secondary plugging block (303 d) comprises a secondary plug block (303 d-1) fixedly arranged at the bottom end of the connecting column (303 b), and a second joint surface (303 d-2) and a second intrados surface (303 d-3) are arranged on the secondary plug block (303 d-1);
the valve body (100) further comprises an expanded drain pipe (105) fixedly arranged at the bottom end of the transmission channel (101);
still include buffer gear (400), it is including fixed locate transmission channel (101) with communicating pipe (401) on the hole enlargement drain pipe (105), and locate movable groove (402) of communicating pipe (401) inner wall, the inner wall fixed mounting of movable groove (402) has packing ring (403), the tip fixed mounting of packing ring (403) has No. three spring (404), still including sliding locate sealing plug (405) in movable groove (402), the outer wall of sealing plug (405) is equipped with sealing washer (406).
2. A hydropower station gate water filling valve according to claim 1, wherein: the length of the upper arc edge of the first intrados (302 d-3) is longer than that of the lower arc edge of the first intrados (302 d-3);
the length of the upper arc edge of the second intrados (303 d-3) is smaller than that of the lower arc edge of the second intrados (303 d-3).
3. A hydropower station gate water filling valve according to claim 2, wherein: the accommodating groove (102) further comprises a sealing groove (102 e) which is arranged in the sliding groove (102 b);
a sealing ring (102 f) is arranged on the inner wall of the sealing groove (102 e).
4. A hydropower station gate water filling valve according to claim 3, wherein: the bottom end of the extrusion strip (302 a-1) is provided with an extrusion surface (302 a-3);
the plug assembly (301) further comprises an extrusion arc strip (301 d) fixedly arranged on the outer wall of the plug (301 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311493321.5A CN117231749B (en) | 2023-11-10 | 2023-11-10 | Water filling valve for hydropower station gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311493321.5A CN117231749B (en) | 2023-11-10 | 2023-11-10 | Water filling valve for hydropower station gate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117231749A CN117231749A (en) | 2023-12-15 |
| CN117231749B true CN117231749B (en) | 2024-03-29 |
Family
ID=89088368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311493321.5A Active CN117231749B (en) | 2023-11-10 | 2023-11-10 | Water filling valve for hydropower station gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117231749B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030820A1 (en) * | 1997-01-07 | 1998-07-16 | Wavtech Pty. Ltd. | Valve cartridge for lift valve having the closing pressure on the sealing limited |
| CN101963233A (en) * | 2010-09-09 | 2011-02-02 | 成都春江科技有限公司 | Flow speed sectioned quick water-saving faucet |
| CN104006165A (en) * | 2012-09-21 | 2014-08-27 | 张轶 | Two-stage seal stop valve |
| JP2016180291A (en) * | 2015-03-25 | 2016-10-13 | 株式会社竹村製作所 | Anti-freezing faucet post |
| CN208503524U (en) * | 2018-06-11 | 2019-02-15 | 国家电投集团贵州金元威宁能源发展有限公司象鼻岭水电站 | A kind of novel power station bypass valve |
| JP2019128036A (en) * | 2018-01-25 | 2019-08-01 | 株式会社不二工機 | Flow-control valve |
| CN214363351U (en) * | 2020-12-31 | 2021-10-08 | 庾建辉 | Improved hydropower station gate water filling valve |
| CN113685556A (en) * | 2021-09-29 | 2021-11-23 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| CN215567977U (en) * | 2021-07-08 | 2022-01-18 | 国能大渡河流域水电开发有限公司枕沙水电建设管理分公司 | Hydropower station gate water filling valve |
| CN114263747A (en) * | 2021-12-23 | 2022-04-01 | 中国电建集团中南勘测设计研究院有限公司 | Non-linear regulation water filling valve |
| CN114414450A (en) * | 2022-01-26 | 2022-04-29 | 四川大学 | Environmental detection device for occupational health |
| CN115006771A (en) * | 2022-06-13 | 2022-09-06 | 江苏国荣安防装备科技有限公司 | Hydraulic valve for intelligent indoor fire hydrant |
| CN116857452A (en) * | 2023-07-21 | 2023-10-10 | 三峡金沙江云川水电开发有限公司 | Stable butt joint device for disc-type valve and control system for tail water disc-type valve of hydropower station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8800597B2 (en) * | 2011-04-15 | 2014-08-12 | Graco Minnesota Inc. | Fine control gas valve |
-
2023
- 2023-11-10 CN CN202311493321.5A patent/CN117231749B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030820A1 (en) * | 1997-01-07 | 1998-07-16 | Wavtech Pty. Ltd. | Valve cartridge for lift valve having the closing pressure on the sealing limited |
| CN101963233A (en) * | 2010-09-09 | 2011-02-02 | 成都春江科技有限公司 | Flow speed sectioned quick water-saving faucet |
| CN104006165A (en) * | 2012-09-21 | 2014-08-27 | 张轶 | Two-stage seal stop valve |
| JP2016180291A (en) * | 2015-03-25 | 2016-10-13 | 株式会社竹村製作所 | Anti-freezing faucet post |
| JP2019128036A (en) * | 2018-01-25 | 2019-08-01 | 株式会社不二工機 | Flow-control valve |
| CN208503524U (en) * | 2018-06-11 | 2019-02-15 | 国家电投集团贵州金元威宁能源发展有限公司象鼻岭水电站 | A kind of novel power station bypass valve |
| CN214363351U (en) * | 2020-12-31 | 2021-10-08 | 庾建辉 | Improved hydropower station gate water filling valve |
| CN215567977U (en) * | 2021-07-08 | 2022-01-18 | 国能大渡河流域水电开发有限公司枕沙水电建设管理分公司 | Hydropower station gate water filling valve |
| CN113685556A (en) * | 2021-09-29 | 2021-11-23 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| CN114263747A (en) * | 2021-12-23 | 2022-04-01 | 中国电建集团中南勘测设计研究院有限公司 | Non-linear regulation water filling valve |
| CN114414450A (en) * | 2022-01-26 | 2022-04-29 | 四川大学 | Environmental detection device for occupational health |
| CN115006771A (en) * | 2022-06-13 | 2022-09-06 | 江苏国荣安防装备科技有限公司 | Hydraulic valve for intelligent indoor fire hydrant |
| CN116857452A (en) * | 2023-07-21 | 2023-10-10 | 三峡金沙江云川水电开发有限公司 | Stable butt joint device for disc-type valve and control system for tail water disc-type valve of hydropower station |
Non-Patent Citations (3)
| Title |
|---|
| 大型水压机阀芯驱动系统凸轮升程曲线设计;陈玲;谭建平;杨俊;陈晖;;锻压技术(第02期);91-95 * |
| 汽车平衡轴总成分装台设计;温承钦;林文芳;;制造技术与机床(第07期);169-173 * |
| 温承钦 ; 林文芳 ; .汽车平衡轴总成分装台设计.制造技术与机床.2018,(第07期),169-173. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117231749A (en) | 2023-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104832135B (en) | It is a kind of to connect automatic switch for the oil jacket that submerged electric oil pump well sand control is buried | |
| CN117231749B (en) | Water filling valve for hydropower station gate | |
| CN110552328B (en) | Stoplog type gate with layered water taking function and working method thereof | |
| CN112066048B (en) | Slow-closing check valve | |
| CN114109307B (en) | Erosion-resistant normally-open type internal blowout prevention valve | |
| CN201090177Y (en) | Multifunctional check valve | |
| CN212585943U (en) | Bridge water seepage detection device for municipal bridge engineering | |
| CN115992660A (en) | Repeatedly opened and closed reverse circulation valve | |
| CN211009955U (en) | Natural gas well time delay cuts device | |
| CN212202018U (en) | Water injection device with universal anti-creep function and without resistance sleeve protection | |
| CN117052331B (en) | Arrow-shaped pressure relief check valve of drilling tool | |
| KR100992083B1 (en) | Check valve dash port cylinder | |
| CN103935863A (en) | Elevator buffer, method for arranging same, method for maintaining same, and elevator | |
| CN217712498U (en) | Balanced type hydraulic locking automatic grouting device | |
| CN110453651B (en) | Butterfly valve type flap valve for bidirectional flow passage and application method thereof | |
| CN117052355B (en) | Plunger lifting oil-gas well wellhead device | |
| CN212297773U (en) | Dead check valve of anti-sticking for petroleum pipeline connection | |
| CN219866424U (en) | Backflow preventing structure and check valve | |
| CN216868658U (en) | Automatic air bleeder of heating equipment pipeline | |
| CN213089089U (en) | Hydraulic pipe connecting device with good leakage-proof performance | |
| CN106321870B (en) | A kind of coaxial-type multistage float spool | |
| CN218236252U (en) | Non-return drain valve | |
| CN216009602U (en) | Water valve structure of high-potential difference hydrostatic circulating drive power generation equipment | |
| CN217001785U (en) | Constant pressure oil drain device | |
| CN221074161U (en) | Low-starting-pressure well-flushing group valve device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |