CN220225613U - Dredge connecting sleeve device for water supply and drainage pipeline - Google Patents
Dredge connecting sleeve device for water supply and drainage pipeline Download PDFInfo
- Publication number
- CN220225613U CN220225613U CN202223169518.7U CN202223169518U CN220225613U CN 220225613 U CN220225613 U CN 220225613U CN 202223169518 U CN202223169518 U CN 202223169518U CN 220225613 U CN220225613 U CN 220225613U
- Authority
- CN
- China
- Prior art keywords
- liquid outlet
- liquid inlet
- water supply
- collecting box
- connecting sleeve
- 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 44
- 239000007788 liquid Substances 0.000 claims abstract description 91
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 description 18
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a water supply and drainage pipeline dredging connecting sleeve device, which comprises: the connecting sleeve body comprises a connecting cylinder, a collecting box and collecting boxes, and the two sides of the connecting cylinder are provided with a liquid inlet and a liquid outlet. The upper end of connecting cylinder is detachably connected with the bottom of collecting box, and the collecting box embeds one side that the collecting box is close to the liquid outlet, and the collecting box bottom has seted up the first filtration pore with the liquid outlet intercommunication. The filtering plug assembly comprises a filter plate, a sealing plate, a limiting frame and a pressurizing element, wherein second filter holes are uniformly formed in the region, opposite to the liquid inlet, of the filter plate, the sealing plate is installed on one side, facing the liquid outlet, of the filter plate through the limiting frame and is movably connected to the limiting frame, when the pressure on one side of the liquid outlet is increased, the sealing plate seals the second filter holes and the liquid inlet, and the output end of the pressurizing element is communicated with one side, opposite to the liquid inlet, of the sealing plate. The dredging connecting sleeve device for the water supply and drainage pipelines has a simple structure, and can effectively dredge and prevent the blockage of the water supply and drainage pipelines.
Description
Technical Field
The utility model relates to the technical field of dredging of water supply and drainage pipelines, in particular to a dredging connecting sleeve device of a water supply and drainage pipeline.
Background
The water supply and drainage pipeline is an integral part of the water supply and drainage system, plays an important role on the whole water supply and drainage system, and comprises a pipeline system and various constructional engineering on the pipeline system, such as a pump station, a reservoir, a pipe bridge, a gate well, a sewage inspection well, a rain water inlet and the like, and the engineering investment of the water supply and drainage system is a large part of the total engineering investment of the water supply and drainage system. However, in the use process of the water supply and drainage pipeline, impurities are often mixed in the drainage, and once the impurities are accumulated too much, the water supply and drainage pipeline is easy to be blocked.
Based on this, also appeared the mediation drainage structure of water supply and drainage pipeline in the market, but this structure nevertheless can dredge drainage to water supply and drainage pipeline effectively, reduces the jam incidence in the drainage process, but can not clear up the impurity of pipeline inside for the impurity still flows in the pipeline inside, and then still has the pipeline jam of great probability emergence, and can not assist water supply and drainage pipeline to dredge work.
Disclosure of Invention
The utility model aims to overcome the technical defects, and provides a dredging connecting sleeve device for a water supply and drainage pipeline, which solves the technical problems of pipeline blockage and difficult impurity cleaning in the technical field of dredging of the water supply and drainage pipeline in the prior art.
In order to achieve the technical purpose, the technical scheme of the utility model provides a dredging connecting sleeve device for a water supply and drainage pipeline, which comprises the following components:
the connecting sleeve body comprises a connecting cylinder, a collecting box and a collecting box; one side of the connecting cylinder is provided with a liquid inlet, and the other side of the connecting cylinder is provided with a liquid outlet; the upper end of the connecting cylinder is detachably connected with the bottom end of the collecting box; the collecting box is arranged in one side of the collecting box, which is close to the liquid outlet; the bottom of the collecting box is provided with a first filtering hole communicated with the liquid outlet;
the filter plug removing assembly comprises a filter plate, a sealing plate, a limiting frame and a pressurizing element; second filter holes are uniformly formed in the filter plate in the area opposite to the liquid inlet holes; the filter plates are movably connected with two sides of the connecting cylinder; the sealing plate is arranged on one side of the filter plate facing the liquid outlet through the limiting frame and is movably connected with the limiting frame; when the pressure at one side of the liquid outlet is increased, the sealing plate seals the second filtering hole and the liquid inlet; the output end of the pressurizing element is communicated with one side of the sealing plate, which is away from the liquid inlet.
Compared with the prior art, the utility model has the beneficial effects that:
1. through being provided with the filter with the connecting cylinder can be right get into the inside liquid of connecting cylinder filters, and utilizes the inclination of filter and the impact force of cooperation liquid stream can make impurity get into through the collecting box gets into collect inside the box, at this moment through collect the first filtration pore of box bottom and accept the third filtration pore of box bottom makes the rethread of remaining liquid resource inside the connecting cylinder, effectively prevented that the impurity from flowing at the intraductal portion, play can clear up for inside impurity of fluid-discharge tube, prevent that the impurity from lasting backward flow for the difficult effect of jam of fluid-discharge tube.
2. Through being provided with supercharging element cooperation the connecting cylinder can fill gas pressure into inside the connecting cylinder, this moment the filter pressfitting the sliding block with the sliding tray can rotate by a small margin and remove the sealedly to the left the inlet, and the closing plate also can cooperate spacing and stopper to remove left and seal the filter, and pressure only can strike to the play water direction this moment, and then can assist water supply and drainage pipeline to dredge work, reaches the effect that increases water supply and drainage pipeline mediation adapter sleeve performance.
Drawings
FIG. 1 is a schematic perspective view of a water supply and drainage pipeline dredging connecting sleeve device provided by the utility model;
FIG. 2 is a schematic diagram of a semi-sectional perspective structure of a dredging connecting sleeve device of a water supply and drainage pipeline;
FIG. 3 is a schematic view of a part of a structure of a filtering plug removing assembly of the dredging connecting sleeve device of the water supply and drainage pipeline;
FIG. 4 is a schematic view of a semi-sectional perspective structure of a connecting cylinder of the dredging connecting sleeve device of the water supply and drainage pipeline;
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, 2, 3 and 4, the present embodiment provides a water supply and drainage pipeline dredging connecting sleeve device, which includes: the filter plug removing device comprises a connecting sleeve main body 1 and a filter plug removing assembly 2.
The connecting sleeve main body 1 comprises a connecting cylinder 11, a collecting box 12 and a collecting box 13, a liquid inlet 11b is formed in the middle area of one side of the connecting cylinder 11, a liquid outlet 11c is formed in the other side of the connecting cylinder 11, the connecting sleeve main body 1 further comprises a liquid inlet pipe 17, a sealing element 14 and a liquid outlet pipe 18, the liquid inlet pipe 17 is fixedly connected with the circumference of the liquid inlet 11b, the liquid outlet pipe 18 is fixedly connected with the circumference of the liquid outlet 11c, the sealing element 14 is sleeved on the outer circumferential surfaces of the liquid inlet pipe 17 and the liquid outlet pipe 18 and is close to one side of the connecting cylinder 11, and one side surfaces of the two sealing elements 14, which are close to each other, are fixedly connected with two side surfaces of the connecting cylinder 11 respectively so as to play a role in sealing.
The upper end of the connecting cylinder 11 is fixedly connected with the bottom end of the collecting box 12, and the area of the upper end of the connecting cylinder 11 fixedly connected with the collecting box 12 is opened, so that the connecting cylinder 11 and the cavity of the collecting box 12 are ensured to be vertically communicated, and when impurities in liquid are filtered, the impurities can enter the collecting box 12 through the vertically communicated cavity, so that the impurities are collected. The right side region of collection box 12 is equipped with one and accepts the case 121, accept the partial mouth of top opening and right side opening collection box 12 of case 121, just accept the bottom of case 121 and evenly seted up third filtration pore 121a, accept the cavity joint of case 121a one collection box 13, the bottom of collection box 13 has also evenly seted up first filtration pore 13a simultaneously, the partial mouth of collection box 12 can make collection box 13 is followed the direction business turn over of feed liquor pipe 17 and drain pipe 18 is convenient for the collection of impurity. The connecting sleeve main body 1 further comprises a baffle 15 and a handle 16, one side surface of the baffle 15 is fixedly connected with one side surface of the collecting box 13 facing the liquid outlet 11c, and when the baffle 15 is fixedly connected with the collecting box 13, the baffle 15 can seal the connecting position of the collecting box 13 and the collecting box 12, and the other side surface of the baffle 15 is fixedly connected with one end of the handle 16, so that the collecting box 13 is conveniently taken out.
The filtering and plug removing assembly 2 comprises a filtering plate 21, a sealing plate 22, a limiting frame 23, a pressurizing element 24, a sliding block 25, limiting blocks 26, a guide plate 27, limiting elastic elements 28, limiting units 29 and a dust cover 30, wherein the filtering and plug removing assembly 2 is located in an inner cavity of the connecting cylinder 11, second filtering holes 21a are uniformly formed in the filtering plate 21 in a region corresponding to the liquid inlet 11b, the filtering plate 21 is movably connected with two sides of the connecting cylinder 11, first sliding grooves 11a are formed in two sides of the connecting cylinder 11, the sliding blocks 25 are movably connected with the first sliding grooves 11a in a built-in mode, two sides of the filtering plate 21 are rotatably connected with the sliding blocks 25, the first sliding grooves 11a and the sliding blocks 25 can be multiple, and the stability of the sliding of the filtering plate 21 along the first sliding grooves 11a can be improved through the sliding blocks 25. The sealing plate 22 is mounted on one side of the filter plate 21 facing the liquid outlet 11c through the limiting frame 23 and is movably connected to the limiting frame 23, the upper end and the lower end of the limiting frame 23 are provided with second sliding grooves 23a, one end of the limiting block 26 is arranged in the second sliding grooves 23a and is in sliding connection with the limiting frame 23, the other end of the limiting block 26 is fixedly connected with the upper end and the lower end of the sealing plate 22, the limiting frame 23 faces the liquid inlet 11b and is fixedly connected with the upper end and the lower end of the filter plate 21, and at the moment, the sealing plate 22 and the filter plate 21 can simultaneously slide along the first sliding grooves 11a along the direction of the liquid inlet.
Specifically, when the pressure at the liquid outlet 11c increases, the sealing plate 22 slides toward the liquid inlet 11b to seal the second filtering hole 21a, and at this time, under the action of the pressure, the sealing plate 22 and the filtering plate 21 slide toward the liquid inlet 11b to seal the liquid inlet 11b.
One end of the guide plate 27 is hinged to one side of the carrying box 121, facing the liquid inlet 11b, one end of the guide plate 27 is attached to one side of the filter plate 21, facing the liquid inlet 11b, and the guide plate 27 and one side of the carrying box 121, facing the liquid inlet 11b, are distributed at an included angle so as to ensure that the impurities can flow along the guide plate 27 to the direction of the collecting box 13 so as to collect the impurities, one ends of the limiting elastic elements 28 are fixedly connected with one side of the guide plate 27, facing the liquid outlet 11c, of the guide plate 27, the other ends of the limiting elastic elements 28 are fixedly connected with the bottom end of the carrying box 121 so as to ensure that under the impact of water flow, the inclination angle of the guide plate 27 is not changed so as to influence the effect of the collecting box 13 on collecting the impurities, one end of the limiting units 29 is fixedly connected with two inner sides of the connecting cylinder 11, and the plurality of limiting units 29 are contacted with one side of the filter plate 21, facing the liquid outlet 11c so as to prevent the inclination angle of the filter plate 21 from changing so as to influence the direction of the impurities flowing to the collecting box 12 under the impact of the water flow.
The pressurizing element 24 is fixedly connected with one side of the connecting cylinder 11, the dust cover 30 is fixedly connected with one side of the connecting cylinder 11 and is positioned in front of the pressurizing element 24, the input end of the pressurizing element 24 penetrates through the whole dust cover 30, the front surface of the dust cover 30 is uniformly provided with an air inlet groove 30a for air inlet, the output end of the pressurizing element 24 penetrates through the cavity of the liquid outlet 11c side of the connecting cylinder, when a pipeline is blocked, liquid of the liquid inlet pipe 17 is blocked at first, the pressurizing element 24 inputs air pressure into the cavity of the liquid outlet 11c side of the connecting cylinder 11, at the moment, under the action of air pressure and a closed space, the sealing plate 22 slides towards the filter plate 21 and seals the second filtering hole 21a, at the moment, the filter plate 21 and the sealing plate 22 slide towards the liquid inlet 11b, at the moment, the liquid inlet 11b is blocked, the air pressure of the cavity of the connecting cylinder 11 is blocked, and the air pressure of the connecting cylinder 11 finally works along with the working of the connecting cylinder 24 to assist in removing the air pressure plug.
Working principle: the dredging connecting sleeve device for the water supply and drainage pipelines comprises a connecting sleeve main body 1, wherein the connecting sleeve main body 1 comprises a connecting cylinder 11, a collecting box 12 and a collecting box 13. A liquid inlet 11b is formed in one side of the connecting cylinder 11, a liquid outlet 11c is formed in the other side of the connecting cylinder, and the upper end of the connecting cylinder 11 is detachably connected with the bottom end of the collecting box 12; the collection box 13 is arranged in one side of the collection box 12, which is close to the liquid outlet 11c, and a first filtering hole 13a communicated with the liquid outlet 11c is formed in the bottom of the collection box 13. The filtering plug assembly 2, the filtering plug assembly 2 comprises a filter plate 21, a sealing plate 22, a limiting frame 23 and a pressurizing element 24, wherein second filter holes 21a are uniformly formed in the region of the liquid inlet 11b on the filter plate 21, the filter plate 21 is movably connected with two sides of the connecting cylinder 11, the sealing plate 22 is mounted on one side of the filter plate facing the liquid outlet through the limiting frame and is movably connected with the limiting frame 23, when the pressure on one side of the liquid outlet 11c increases, the sealing plate 22 seals the second filter holes 21a and the liquid inlet 11b, and the output end of the pressurizing element 24 is communicated with one side of the sealing plate 22 facing away from the liquid inlet 11b. The water supply and drainage pipeline dredging connecting sleeve device utilizes the inclination of the filter plate 21 and the guide plate 27 to collect impurities in the collecting box 13 under the action of water impact force, utilizes the pressurizing element 24 to pressurize the cavity of the connecting cylinder 11, and under the action of the sliding block 25, the sealing plate 22 seals the liquid inlet 11b to enable the cavity of the connecting cylinder 11 to form a closed space, so that the cavity air pressure of the connecting cylinder 11 increases to assist in pipeline blocking prevention.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any of various other corresponding changes and modifications made according to the technical idea of the present utility model should be included in the scope of the claims of the present utility model.
Claims (10)
1. The utility model provides a water supply and drainage pipeline mediation adapter sleeve device which characterized in that includes:
the connecting sleeve body comprises a connecting cylinder, a collecting box and a collecting box; one side of the connecting cylinder is provided with a liquid inlet, and the other side of the connecting cylinder is provided with a liquid outlet; the upper end of the connecting cylinder is detachably connected with the bottom end of the collecting box; the collecting box is arranged in one side of the collecting box, which is close to the liquid outlet; the bottom of the collecting box is provided with a first filtering hole communicated with the liquid outlet;
the filter plug removing assembly comprises a filter plate, a sealing plate, a limiting frame and a pressurizing element; second filtering holes are uniformly formed in the region, opposite to the liquid inlet, of the filtering plate; the filter plates are movably connected with two sides of the connecting cylinder; the sealing plate is arranged on one side of the filter plate facing the liquid outlet through the limiting frame and is movably connected with the limiting frame; when the pressure at one side of the liquid outlet is increased, the sealing plate seals the second filtering hole and the liquid inlet; the output end of the pressurizing element is communicated with one side of the sealing plate, which is away from the liquid inlet.
2. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the filtering plug removing assembly further comprises a sliding block; the two sides of the connecting cylinder are provided with first sliding grooves, and the sliding blocks are arranged in the first sliding grooves for sliding connection; and two sides of the filter plate are rotationally connected with the sliding block.
3. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the filtering plug removing assembly further comprises a limiting block; the upper end and the lower end of the limiting frame are provided with second sliding grooves; one end of the limiting block is arranged in the second sliding groove and is in sliding connection with the limiting frame; the other end of the limiting block is fixedly connected with the upper end and the lower end of the sealing plate; the limiting frame is fixedly connected with the upper end and the lower end of the filter plate towards the liquid inlet end; when the pressure at one side of the liquid outlet is increased, the sealing plate slides towards one side of the liquid inlet to seal the second filtering holes, and the sealing plate and the filtering plate slide towards one side of the liquid inlet to seal the liquid inlet.
4. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the bottom end of the collecting box is in an opening shape; the cavity of the collecting box is communicated with the cavity of the connecting cylinder; the inner cavity of the collecting box is provided with a receiving box; the upper end of the carrying box is in an opening shape; the bottom end of the carrying box is uniformly provided with third filtering holes; the collecting box is clamped and connected with the bearing box.
5. The water supply and drainage pipeline dredging connecting sleeve device according to claim 4, wherein the filtering plug removing assembly further comprises a guide plate; one end of the guide plate is hinged with one side of the receiving box, which faces the liquid inlet; one end of the guide plate is attached to one surface of the filter plate, which faces the liquid inlet; the guide plates and one side of the receiving box, which faces the liquid inlet, are distributed in an included angle.
6. The water supply and drainage pipeline dredging connecting sleeve device according to claim 5, wherein the filtering plug removing assembly further comprises a limiting elastic element; one end of each limiting elastic element is fixedly connected with one side face, facing the liquid outlet, of each guide plate; the other ends of the limiting elastic elements are fixedly connected with the bottom end of the bearing box.
7. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the filtering plug removing assembly further comprises a limiting unit; one end of each limiting unit is fixedly connected with the two inner sides of the connecting cylinder; the limiting units are contacted with one side surface, facing the liquid outlet, of the filter plate.
8. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the connecting sleeve main body further comprises a baffle and a handle; one side surface of the baffle is fixedly connected with one side surface of the collecting box, which faces the liquid outlet; the other side surface of the baffle is fixedly connected with one end of the handle.
9. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the connecting sleeve main body further comprises a liquid inlet pipe, a sealing element and a liquid outlet pipe; the liquid inlet pipe is fixedly connected with the circumference of the liquid inlet; the liquid outlet pipe is fixedly connected with the circumference of the liquid outlet; the sealing element is sleeved on the liquid inlet pipe and the liquid outlet pipe; one side surface of the two sealing elements, which are close to each other, is fixedly connected with two side surfaces of the connecting cylinder respectively to play a role in sealing.
10. The water supply and drainage pipeline dredging connecting sleeve device according to claim 1, wherein the filtering plug removing assembly further comprises a dust cover; the input end of the pressurizing element penetrates through the dust cover; the front of the dust cover is uniformly provided with air inlet grooves for air inlet, and the output end of the pressurizing element penetrates through to the cavity of the liquid outlet side of the connecting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223169518.7U CN220225613U (en) | 2022-11-23 | 2022-11-23 | Dredge connecting sleeve device for water supply and drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223169518.7U CN220225613U (en) | 2022-11-23 | 2022-11-23 | Dredge connecting sleeve device for water supply and drainage pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220225613U true CN220225613U (en) | 2023-12-22 |
Family
ID=89196108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223169518.7U Active CN220225613U (en) | 2022-11-23 | 2022-11-23 | Dredge connecting sleeve device for water supply and drainage pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220225613U (en) |
-
2022
- 2022-11-23 CN CN202223169518.7U patent/CN220225613U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220225613U (en) | Dredge connecting sleeve device for water supply and drainage pipeline | |
| CN216825106U (en) | Novel water filter | |
| CN208260318U (en) | A kind of water feed apparatus of underground sewage disposal system system | |
| CN211896168U (en) | Detachable purifier | |
| CN209548927U (en) | Natural gas filter | |
| CN208997062U (en) | A kind of hydraulic drive hydraulic valve | |
| CN207805143U (en) | A kind of continous way filtering equipment | |
| CN218622488U (en) | Connecting component of sewage pipeline | |
| CN213760735U (en) | Filter equipment is used in hydraulic engineering construction | |
| CN205935142U (en) | Urban green land rain sewage clean system | |
| CN206319397U (en) | A kind of rainwater discharging well | |
| CN216519828U (en) | Prevent blockking up intelligent valve door | |
| CN216407856U (en) | Quick detach formula valve prevents stifled filter unit | |
| CN218797666U (en) | Valve cleaning tank | |
| CN214460986U (en) | Novel kitchen cleaning well | |
| CN219157589U (en) | Hydraulic engineering gate device | |
| CN217773432U (en) | Filter with replaceable filter screen | |
| CN216677304U (en) | Y-shaped filter | |
| CN213982507U (en) | Prevent pressure pipeline of getting of jam structure | |
| CN215253141U (en) | Can carry out municipal building drainage device who retrieves to rainwater | |
| CN210751604U (en) | Pipeline filter | |
| CN211097947U (en) | Novel urea solution blowdown recovery processing device | |
| CN213466922U (en) | Textile printing and dyeing wastewater collection and treatment device | |
| CN109499194A (en) | Natural gas filter | |
| CN213625965U (en) | Novel road surface filtering well lid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |