CN220685988U - Irrigation canal flank gate - Google Patents

Irrigation canal flank gate Download PDF

Info

Publication number
CN220685988U
CN220685988U CN202320679889.5U CN202320679889U CN220685988U CN 220685988 U CN220685988 U CN 220685988U CN 202320679889 U CN202320679889 U CN 202320679889U CN 220685988 U CN220685988 U CN 220685988U
Authority
CN
China
Prior art keywords
gate
rotation axis
wire rope
motor
fixedly connected
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
Application number
CN202320679889.5U
Other languages
Chinese (zh)
Inventor
尚艳华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202320679889.5U priority Critical patent/CN220685988U/en
Application granted granted Critical
Publication of CN220685988U publication Critical patent/CN220685988U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides an irrigation canal flank gate, wherein a lifting mechanism comprises a supporting plate, a motor, a rotating shaft, a supporting frame, a limiting plate, a placing hole, a sliding groove, a placing groove, a steel wire rope, a connecting block and a connecting hole. When the gate needs to be lifted, the upper surface fixedly connected with motor of backup pad, the backup pad forms the support to motor type this moment, open motor can drive the rotation axis and rotate, the outside fixedly connected with limiting plate of rotation axis, can guarantee like this can not dislocation when wire rope winds around the rotation axis, the standing groove has been seted up to the top surface of placing the board, the outside fixedly connected with wire rope of rotation axis opens the motor this moment, the motor drives the rotation axis and rotates, the rotation axis makes wire rope winding, thereby control its flexible, then the top fixedly connected with connecting block of gate, the connecting hole has been seted up on one side surface of connecting block, wire rope fixedly connected with connecting hole, wire rope flexible drives the gate and reciprocates this moment.

Description

Irrigation canal flank gate
Technical Field
The utility model relates to the technical field related to irrigation ditches, in particular to a side wing gate of an irrigation ditch.
Background
The irrigation channel is a water channel connecting an irrigation water source and an irrigation land, the water quantity led from the water source is conveyed and distributed to each part of an irrigation area, the irrigation channel is divided into 5 grades such as a main channel, a branch channel, a bucket channel, an agricultural channel, a rough channel and the like according to the size of a control area in the range of the irrigation area, the irrigation area with complex topography and large area can be additionally provided with a plurality of grades such as a total trunk, a branch and a branch bucket, the number of channel grades can be reduced in the irrigation area with small area, the longitudinal and the transverse sections of the channels are designed according to the data such as the design irrigation flow and the design irrigation water level, and the irrigation channel can be divided into an open channel and an underdrain: the open channel is built on the ground and has free water surface; the underdrain is a closed underground water channel around, which can be a control facility with or without pressurized water flow, the open channel occupies more land, leakage and evaporation loss are large, but the construction is convenient, the cost is lower, therefore, the underground water channel is most applied, the underground water channel occupies less land, leakage and evaporation loss are small, the underground water channel is suitable for arid areas with more people and less land or insufficient water sources, but the underdrain needs a large amount of building materials, the technology is more complicated, the cost is higher, the gate is frequently needed to control irrigation when the irrigation channel is used, the gate is used for closing and opening a control facility of a water channel, an important component of a hydraulic building can be used for intercepting water flow, controlling water level, adjusting flow, discharging sediment, floating objects and the like, the water channel is divided according to manufacturing materials, the main wood gate, the wood panel steel frame, the cast iron gate, the reinforced concrete gate and the steel gate, the gate is divided according to the relative positions of the gate tops and the horizontal plane, the main exposed top gate and the non-rising gate are divided according to the working property, the main working gate, the accident gate and the gate are divided according to the gate method, the opening and closing gate is mainly used for controlling the mechanical operation of the opening and closing gate and the falling gate and the automatic opening and closing gate are not needed to support the flap gate when the water level is not needed to be controlled by the supporting the flap, the automatic gate and the flap is not needed to control the flap, the irrigation roller is not wanted to control the supporting the water channel.
However, the lifting effect of the existing gate is not very ideal, because the gate must be lifted to control irrigation when controlling irrigation, and the lifting effect of the existing gate is not very ideal so that it is inconvenient to control when irrigation is performed on a place where irrigation is required, thus being unfavorable for the use of the gate and affecting the effect of irrigation.
Disclosure of Invention
The present utility model aims to provide a side wing gate for irrigation canal, which solves the problems that the lifting effect of the existing gate proposed in the prior art is not very ideal, the lifting effect of the existing gate is not very ideal because the irrigation needs to be controlled by lifting the gate, the control is inconvenient when the irrigation is carried out on the places needing to be irrigated, the use of the gate is not facilitated, and the irrigation effect is affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an irrigate canal flank gate, includes gate and elevating system, wherein elevating system is including backup pad, motor, rotation axis, support frame, limiting plate, place hole, sliding tray, standing groove, wire rope, connecting block and connecting hole, the top of gate is provided with and is connected with places the board, the below surface of placing the board is provided with supporting mechanism, a side surface of placing the board is provided with coupling mechanism, the top surface of placing the board is provided with elevating system.
Preferably, the supporting mechanism comprises supporting legs, inclined struts, supporting rods, threaded plates and second bolts, the supporting legs are fixedly connected with the lower surface of the placing plate, the outer side surfaces of the supporting legs are fixedly connected with the inclined struts, the supporting rods are fixedly connected with the outer side surfaces of the supporting legs, one end surfaces of the supporting legs are fixedly connected with the threaded plates, and one side surfaces of the threaded plates are fixedly connected with the second bolts.
Preferably, the support rods are symmetrically arranged on the central axis of the placing plate, and the diagonal braces are symmetrically arranged on the central axis of the placing plate.
Preferably, the connecting mechanism comprises a clamping groove, a clamping plate, a limiting column, a first bolt and a nut, wherein the clamping groove is formed in the upper surface of the gate, the inner side surface of the clamping groove is clamped and connected with the clamping plate, the limiting column is fixedly connected with the upper surface of the clamping plate, the first bolt is connected with one side surface of the clamping plate through threads, and the nut is connected with the outer side surface of the first bolt through threads.
Preferably, the inner wall size of the clamping groove is identical with the outer wall size of the clamping plate, and the first bolts are symmetrically arranged with the central axis of the clamping groove.
Preferably, elevating system is including backup pad, motor, rotation axis, support frame, limiting plate, place hole, sliding tray, standing groove, wire rope, connecting block and connecting hole, the top fixed surface of placing the board is connected with the backup pad, the top fixed surface of backup pad has the motor, the one end surface swivelling joint of motor has the rotation axis, the outside surface swivelling joint of rotation axis has the support frame, the outside fixed surface of rotation axis has the limiting plate, the standing hole has been seted up to the top surface of placing the board, the sliding tray has been seted up to the outside surface of spacing post, the standing groove has been seted up to the top surface of placing the board, the outside surface fixedly connected with wire rope of rotation axis, the top fixed surface of gate is connected with the connecting block, the connecting hole has been seted up to one side surface of connecting block.
Preferably, the connecting blocks are symmetrically arranged on the central axis of the gate, and the inner wall of the sliding groove is matched with the outer dimension of the rotating shaft.
Compared with the prior art, the utility model has the beneficial effects that: the gate of the utility model is provided with a supporting plate, a motor, a rotating shaft, a supporting frame, a limiting plate, a placing hole, a sliding groove, a placing groove, a steel wire rope, a connecting block and a connecting hole, when the gate is required to be lifted, the supporting plate is fixedly connected with the upper surface of the placing plate, the motor is fixedly connected with the upper surface of the supporting plate, the supporting plate supports the motor type, then one end surface of the motor is rotatably connected with the rotating shaft, the motor is started, the motor can drive the rotating shaft to rotate, then the outer side surface of the rotating shaft is rotatably connected with the supporting frame, the supporting frame can form the supporting for the rotating shaft, then the limiting plate is fixedly connected with the outer side surface of the rotating shaft, can guarantee like this can not misplace when wire rope winds around the rotation axis, then place the top surface of board and seted up and place the hole, then the sliding tray has been seted up to the outside surface of spacing post, just can guarantee at the current position this moment that spacing post is then placed the top surface of board and seted up the standing groove, just so can not influence wire rope's flexible, then the outside fixed surface of rotation axis has wire rope, open the motor this moment, the motor drives the rotation axis and rotates, the rotation axis makes wire rope twine, thereby control its flexible, then the top fixed surface of gate is connected with the connecting block, the connecting hole has been seted up on one side surface of connecting block, wire rope fixed connection connecting hole, wire rope flexible drives the gate and reciprocates this moment.
Drawings
FIG. 1 is a schematic side view of the present utility model;
FIG. 2 is a schematic view of the structure of the supporting mechanism of the present utility model;
FIG. 3 is a schematic view of the structure of the connecting mechanism of the present utility model;
fig. 4 is a schematic structural view of the lifting mechanism of the present utility model.
In the figure: 1. a gate; 2. placing a plate; 3. a support mechanism; 301. support legs; 302. diagonal bracing; 303. a support rod; 304. a thread plate; 305. a second bolt; 4. a connecting mechanism; 401. a clamping groove; 402. a clamping plate; 403. a limit column; 404. a first bolt; 405. a screw cap; 5. a lifting mechanism; 501. a support plate; 502. a motor; 503. a rotation shaft; 504. a support frame; 505. a limiting plate; 506. placing the hole; 507. a sliding groove; 508. a placement groove; 509. a wire rope; 510. a connecting block; 511. and a connection hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides an irrigation canal flank gate, which comprises a gate 1 and a lifting mechanism 5, wherein the lifting mechanism 5 comprises a supporting plate 501, a motor 502, a rotating shaft 503, a supporting frame 504, a limiting plate 505, a placing hole 506, a sliding groove 507, a placing groove 508, a steel wire rope 509, a connecting block 510 and a connecting hole 511, a placing plate 2 is arranged above the gate 1, a supporting mechanism 3 is arranged on the lower surface of the placing plate 2, a connecting mechanism 4 is arranged on one side surface of the placing plate 2, and the lifting mechanism 5 is arranged on the upper surface of the placing plate 2.
Further, the supporting mechanism 3 comprises supporting legs 301, diagonal braces 302, supporting rods 303, threaded plates 304 and second bolts 305, the supporting legs 301 are fixedly connected to the lower surface of the placing plate 2, the diagonal braces 302 are fixedly connected to the outer side surfaces of the supporting legs 301, the supporting rods 303 are fixedly connected to the outer side surfaces of the supporting legs 301, one end surfaces of the supporting legs 301 are fixedly connected with the threaded plates 304, one side surfaces of the threaded plates 304 are in threaded connection with the second bolts 305, when the placing plate 2 is required to be supported, the supporting legs 301 are fixedly connected to the lower surface of the placing plate 2, the supporting legs 301 can support the placing plate 2, then the diagonal braces 302 are fixedly connected to the outer side surfaces of the supporting legs 301, the supporting rods 303 are fixedly connected to the outer side surfaces of the supporting legs 301, the diagonal braces 302 and the supporting rods 303 are used for reinforcing the supporting legs 301, one end surfaces of the supporting legs 301 are in threaded connection with the second bolts 305, when the threaded plates 304 are fixedly connected to one end surfaces of the supporting legs 301, the second threaded plates are rotatably connected to the ground, and the supporting plates are fixedly connected to the ground, and the ground is achieved.
Further, the supporting rods 303 are symmetrically arranged on the central axis of the placing plate 2, the inclined struts 302 are symmetrically arranged on the central axis of the placing plate 2, and the placing plate 2 can be better supported through the arrangement of the supporting rods 303.
Further, coupling mechanism 4 is including draw-in groove 401, cardboard 402, spacing post 403, first bolt 404 and nut 405, draw-in groove 401 has been seted up to the top surface of gate 1, the inboard surface card of draw-in groove 401 is connected with cardboard 402, the top surface fixedly connected with spacing post 403 of cardboard 402, the one side surface threaded connection of cardboard 402 has first bolt 404, the outside surface threaded connection of first bolt 404 has nut 405, through the setting of draw-in groove 401, cardboard 402, spacing post 403, first bolt 404 and nut 405, when using, when needs are connected gate 1, draw-in groove 401 has been seted up to the top surface of gate 1 at first, the inboard surface card of draw-in groove 401 is connected with cardboard 402, rotatory first bolt 404 runs through cardboard 402 threaded connection draw-in groove 401 this moment, gate 1 and cardboard 402 just are in the same place like this, then, gate 1 has been fixed.
Further, the inner wall size of the clamping groove 401 is identical to the outer wall size of the clamping plate 402, the first bolts 404 are symmetrically arranged with the central axis of the clamping groove 401, and the gate 1 and the clamping plate 402 can be better fixed together through the first bolts 404.
Further, the lifting mechanism 5 comprises a supporting plate 501, a motor 502, a rotating shaft 503, a supporting frame 504, a limiting plate 505, a placing hole 506, a sliding groove 507, a placing groove 508, a steel wire rope 509, a connecting block 510 and a connecting hole 511, wherein the supporting plate 501 is fixedly connected to the upper surface of the placing plate 2, the motor 502 is fixedly connected to the upper surface of the supporting plate 501, one end surface of the motor 502 is rotatably connected with the rotating shaft 503, the supporting frame 504 is rotatably connected to the outer surface of the rotating shaft 503, the limiting plate 505 is fixedly connected to the outer surface of the rotating shaft 503, the placing hole 506 is formed in the upper surface of the placing plate 2, the sliding groove 507 is formed in the outer surface of the limiting post 403, the steel wire rope 509 is fixedly connected to the outer surface of the rotating shaft 503, the upper surface of the gate 1 is fixedly connected to the connecting block 510, one side surface of the connecting block 510 is fixedly connected to the connecting hole 511, the supporting plate 502 is rotatably connected to the upper surface of the supporting plate 502 by the supporting plate 502, the rotating shaft 502 is rotatably connected to the rotating shaft 503 around the rotating shaft 503 when the upper surface of the supporting plate 502 is required to be positioned on the gate 1, and the rotating shaft 502 is rotatably connected to the rotating shaft 503, then place the top surface of board 2 and seted up and place hole 506, then the outside surface of spacing post 403 has seted up sliding tray 507, just can guarantee at this moment that spacing post 403 is in current position, then place the top surface of board 2 and seted up standing tray 508, just so can not influence the flexible of wire rope 509, then the outside surface fixedly connected with wire rope 509 of rotation axis 503 opens motor 502 this moment, motor 502 drives rotation axis 503 rotation, rotation axis 503 makes wire rope 509 twine, thereby control its flexible, then the top surface fixedly connected with connecting block 510 of gate 1, connecting hole 511 has been seted up to one side surface of connecting block 510, wire rope 509 fixedly connected with connecting hole 511, wire rope 509 flexible drives gate 1 and reciprocates this moment.
Further, the connection blocks 510 are symmetrically arranged with the central axis of the gate 1, the inner wall of the sliding groove 507 is matched with the outer dimension of the rotating shaft 503, and the gate 1 can be lifted and lowered better through the arrangement of the connection blocks 510.
Working principle: when the placing plate 2 needs to be supported, the supporting legs 301 are fixedly connected with the lower surface of the placing plate 2, at this time, the supporting legs 301 can support the placing plate 2, then the outer side surfaces of the supporting legs 301 are fixedly connected with the diagonal braces 302, the outer side surfaces of the supporting legs 301 are fixedly connected with the supporting rods 303, at this time, the diagonal braces 302 and the supporting rods 303 strengthen the supporting legs 301, the supporting legs 301 can better support the placing plate 2, then one end surface of the supporting legs 301 is fixedly connected with the threaded plate 304, at this time, the second bolts 305 penetrate through the threaded plate 304 to be in threaded connection with the ground, so that the supporting legs 301 are fixed on the ground, the effect of supporting the placing plate 2 is achieved, when the gate 1 needs to be connected, the clamping grooves 401 are formed in the upper surface of the gate 1, the inner side surfaces of the clamping grooves 401 are clamped and connected with the clamping plates 402, at this time, the first bolt 404 is rotated to penetrate the clamping plate 402 and is connected with the clamping groove 401 in a threaded manner, so that the gate 1 and the clamping plate 402 are fixed together, then, when the gate 1 needs to be lifted, the upper surface of the placing plate 2 is fixedly connected with the supporting plate 501, the upper surface of the supporting plate 501 is fixedly connected with the motor 502, at this time, the supporting plate 501 supports the motor 502 type, then, one end surface of the motor 502 is rotationally connected with the rotating shaft 503, at this time, the motor 502 is started, the rotating shaft 503 can be driven to rotate, then, the outer side surface of the rotating shaft 503 is rotationally connected with the supporting frame 504, at this time, the supporting frame 504 can form a support for the rotating shaft 503, then, the outer side surface of the rotating shaft 503 is fixedly connected with the limiting plate 505, so that the steel wire rope 509 can not be misplaced when being wound around the rotating shaft 503, then, the placing hole 506 is formed in the upper surface of the placing plate 2, then the sliding groove 507 is formed in the outer side surface of the limiting post 403, the limiting post 403 can be guaranteed to be at the current position at the moment, then the placing groove 508 is formed in the upper surface of the placing plate 2, the expansion and contraction of the steel wire rope 509 cannot be affected, then the steel wire rope 509 is fixedly connected to the outer side surface of the rotating shaft 503, the motor 502 is started at the moment, the rotating shaft 503 is driven to rotate by the motor 502, the steel wire rope 509 is wound, so that the expansion and contraction of the steel wire rope 509 are controlled, the connecting block 510 is fixedly connected to the upper surface of the gate 1, the connecting hole 511 is formed in one side surface of the connecting block 510, the steel wire rope 509 is fixedly connected with the connecting hole 511, the steel wire rope 509 expands and contracts to drive the gate 1 to move up and down, and the model of the motor 502 is YE2-132S-4, so that the irrigation canal flank gate is completed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an irrigation canal flank gate, includes gate (1) and elevating system (5), and wherein elevating system (5) are including backup pad (501), motor (502), rotation axis (503), support frame (504), limiting plate (505), place hole (506), sliding tray (507), standing groove (508), wire rope (509), connecting block (510) and connecting hole (511), its characterized in that: the top of gate (1) is provided with and is connected with places board (2), the below surface of placing board (2) is provided with supporting mechanism (3), the one side surface of placing board (2) is provided with coupling mechanism (4), the top surface of placing board (2) is provided with elevating system (5).
2. An irrigation ditch side wing gate according to claim 1 wherein: supporting mechanism (3) are including supporting leg (301), bracing (302), bracing piece (303), screw thread board (304) and second bolt (305), place below fixed surface of board (2) and be connected with supporting leg (301), outside fixed surface of supporting leg (301) is connected with bracing (302), outside fixed surface of supporting leg (301) is connected with bracing piece (303), one end fixed surface of supporting leg (301) is connected with screw thread board (304), one side surface threaded connection of screw thread board (304) has second bolt (305).
3. An irrigation ditch side wing gate according to claim 2 wherein: the supporting rods (303) are symmetrically arranged on the central axis of the placing plate (2), and the diagonal braces (302) are symmetrically arranged on the central axis of the placing plate (2).
4. An irrigation ditch side wing gate according to claim 1 wherein: coupling mechanism (4) are including draw-in groove (401), cardboard (402), spacing post (403), first bolt (404) and nut (405), draw-in groove (401) have been seted up on the top surface of gate (1), the inboard surface card of draw-in groove (401) is connected with cardboard (402), the top fixed surface of cardboard (402) is connected with spacing post (403), one side surface threaded connection of cardboard (402) has first bolt (404), the outside surface threaded connection of first bolt (404) has nut (405).
5. An irrigation canal side flap gate according to claim 4 wherein: the inner wall size of the clamping groove (401) is matched with the outer wall size of the clamping plate (402), and the first bolts (404) are symmetrically arranged on the central axis of the clamping groove (401).
6. An irrigation ditch side wing gate according to claim 1 wherein: elevating system (5) including backup pad (501), motor (502), rotation axis (503), support frame (504), limiting plate (505), place hole (506), sliding tray (507), standing tray (508), wire rope (509), connecting block (510) and connecting hole (511), the top fixed surface of standing tray (2) is connected with backup pad (501), the top fixed surface of backup pad (501) is connected with motor (502), the one end surface swivelling joint of motor (502) has rotation axis (503), the outside surface swivelling joint of rotation axis (503) has support frame (504), the outside surface swivelling joint of rotation axis (503) has limiting plate (505), place hole (506) have been seted up to the top surface of standing tray (2), standing tray (508) have been seted up to the top surface of standing tray (2), the outside surface fixedly connected with wire rope (509) of rotation axis (503), the top surface fixedly connected with connecting block (510) of gate (1), connecting block (510)
(510) A connecting hole (511) is formed on one side surface of the cover.
7. An irrigation ditch side wing gate according to claim 6 and wherein: the connecting blocks (510) are symmetrically arranged on the central axis of the gate (1), and the inner wall of the sliding groove (507) is matched with the outer dimension of the rotating shaft (503).
CN202320679889.5U 2023-03-31 2023-03-31 Irrigation canal flank gate Active CN220685988U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320679889.5U CN220685988U (en) 2023-03-31 2023-03-31 Irrigation canal flank gate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320679889.5U CN220685988U (en) 2023-03-31 2023-03-31 Irrigation canal flank gate

Publications (1)

Publication Number Publication Date
CN220685988U true CN220685988U (en) 2024-03-29

Family

ID=90378315

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320679889.5U Active CN220685988U (en) 2023-03-31 2023-03-31 Irrigation canal flank gate

Country Status (1)

Country Link
CN (1) CN220685988U (en)

Similar Documents

Publication Publication Date Title
DE102012020052B3 (en) Wind turbine installed in offshore, has tower which is rotatably arranged by vertical pivoting extension arms, so that height adjustment of rotors is performed, and outer ring is rotated with horizontal arms
CN114215020B (en) High-efficient swift stepless layering water intaking gate device
CN220685988U (en) Irrigation canal flank gate
CN206165368U (en) A automatic irrigation equipment for all around rotation of revegetation
CN209456978U (en) Water-proof drainage device for construction of hydro project
CN113047341B (en) Comprehensive pipe gallery waterproof construction of sponge city ecosystem
US20210054637A1 (en) Support apparatus for use in civil construction
CN108867579A (en) Lift adjustment dropping equipment and matched dam pressure regulation method
CN207469194U (en) Lift adjustment dropping equipment
CN216279770U (en) Pipeline fixing equipment for hydraulic engineering
CN210917249U (en) Water conservancy water and electricity gate hoisting device
CN209469456U (en) A kind of tunnel ditch template
CN211285512U (en) Novel hydraulic engineering steel gate locking device
CN210658276U (en) Automatic control water inlet pipe device for field
CN209040062U (en) A kind of drainage arrangement for hydraulic engineering
CN208235456U (en) A kind of hydraulic engineering gate
KR100505538B1 (en) Bottom drainage automatic beam door switch
CN219240472U (en) Assembled hydraulic building
CN213359492U (en) Civil engineering wall body bearing structure
CN220746819U (en) Intelligent arc-shaped hydraulic dam
CN219755555U (en) Hydraulic engineering pipeline supporting structure
CN205077450U (en) Pump station tripe formula trash rack that blocks water
CN220620018U (en) Farmland channel flap gate
CN212812946U (en) Automatic watering flowerpot
CN220226392U (en) Automatic pressure regulating device for full-automatic intelligent grouting

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant