CN113404015A - Lifting type water conservancy gate - Google Patents

Lifting type water conservancy gate Download PDF

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Publication number
CN113404015A
CN113404015A CN202110843550.XA CN202110843550A CN113404015A CN 113404015 A CN113404015 A CN 113404015A CN 202110843550 A CN202110843550 A CN 202110843550A CN 113404015 A CN113404015 A CN 113404015A
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CN
China
Prior art keywords
frame
fixedly connected
board
buoyancy
close
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Pending
Application number
CN202110843550.XA
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Chinese (zh)
Inventor
陈大永
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Individual
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Individual
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Priority to CN202110843550.XA priority Critical patent/CN113404015A/en
Publication of CN113404015A publication Critical patent/CN113404015A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/26Vertical-lift gates
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/54Sealings for gates

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Abstract

The invention discloses a lifting type water conservancy gate which comprises an outer frame, wherein the top of the outer frame is connected with a rotary rod, one end of the rotary rod, far away from the outer frame, is fixedly connected with a rotary disc, one end of the rotary rod penetrates through a threaded rod fixedly connected with the outer frame, one end of the threaded rod, far away from the rotary rod, is fixedly connected with a water blocking frame, one side of the outer frame is symmetrically provided with a rectangular frame, the position, far away from the threaded rod, inside the water blocking frame is symmetrically provided with a sealing plate, the position, close to the sealing plate, inside the water blocking frame is provided with a buoyancy device, the position, close to the threaded rod, inside the water blocking frame is provided with a knocking device, one side of the rectangular frame is provided with a shaking device, and the buoyancy device comprises a rotary shaft. This over-and-under type water sluicegate has reduced the required dynamics of promotion gate for the gate is opened more laborsavingly, reduces staff's work burden.

Description

Lifting type water conservancy gate
Technical Field
The invention relates to the technical field of water conservancy, in particular to a lifting type water conservancy gate.
Background
The gate structure that sets up in places such as rivers or reservoir sets up for blockking rivers, and after gate combined floodgate a period, under the impact of upstream rivers, can deposit a large amount of silt before the gate, need promote the gate by a certain height, satisfy the river course desilting or flood discharge requirement.
For example, the chinese patent CN111877273A proposes a gate for water conservancy channels, which comprises a frame, a gate, a spiral rotary disc, wherein the gate is clamped at the inner end of the frame, the spiral rotary disc is arranged in the middle of the top of the frame and is movably matched with the gate, the gate comprises a sliding groove, a door body, a threaded rod, the door body comprises a guide groove, a turning plate, and a turning device, the turning device comprises a contact block, a pressing rod, a return spring, and a turning block, the contact block comprises a rotating shaft, a concave tooth, and a convex block, the invention uses the return spring to push the contact block outwards, so that the contact block is in close contact with the sliding groove, when the gate is opened, the door body moves upwards, the contact block is subjected to a downward turning by a friction force between the contact block and the sliding groove, the pressing rod drives the turning plate to turn over, so as to open the turning groove, water flow drives the downstream of a silt network channel to flow, and reduce the pressure on the gate, the gate can be easily opened by the staff.
The device can't realize carrying out loose purpose to the silt in the manger plate frame outside, can not reduce silt to the resistance that produces when opening the gate, reduced the device's practicality to the device's single structure can not clear up the silt in the manger plate frame outside, has increased human labor.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the lifting water conservancy gate, which solves the problem that the device cannot loosen the silt outside the water retaining frame, greatly reduces the opening and closing force of the gate, improves the working efficiency of the gate, provides more external force for cleaning the silt outside the water retaining frame, and improves the mud cleaning efficiency of the device.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an over-and-under type water sluicegate, includes the frame, the top of frame is connected with the rotary rod, the one end fixedly connected with rolling disc of frame is kept away from to the rotary rod, the one end of rotary rod runs through frame fixedly connected with threaded rod, the one end fixedly connected with manger plate frame of rotary rod is kept away from to the threaded rod, the rectangle frame is installed to one side symmetry of frame, the inside symmetry of keeping away from the threaded rod of manger plate frame installs the closing plate, the position that the inside of manger plate frame is close to the closing plate installs buoyancy device, the position that the inside of manger plate frame is close to the threaded rod is installed knocking device, the position that one side of rectangle frame is close to the manger plate frame is installed and is rocked the device.
Preferably, the buoyancy device includes the axis of rotation, the one end and the manger plate frame of axis of rotation are connected, one side fixedly connected with of axis of rotation extends the frame, the inner wall sliding connection who extends the frame has the buoyancy board, one side fixedly connected with roller bearing of buoyancy board, the inner wall sliding connection of roller bearing and manger plate frame, extend the frame and be close to one side of manger plate frame and install flexible arc board, the position fixedly connected with water blocking plate that one side of manger plate frame is close to the buoyancy board, the inner wall fixedly connected with extrusion piece of extending the frame has reduced the required dynamics of promotion gate for the gate is opened more laborsavingly, reduces staff's work burden.
Preferably, one side sliding connection that the buoyancy plate is close to the extrusion piece has the spin, the elasticity stay cord is installed to one side symmetry of spin, the one end and the buoyancy plate fixed connection that the spin was kept away from to the elasticity stay cord for the manger plate frame receives even thrust, improves the device's work efficiency.
Preferably, the knocking device includes the inside casing, the splice box is installed to one side of inside casing, the one end of splice box runs through the manger plate frame and is connected with the arc frame, the internally mounted of arc frame has elastic air bag, the arc board is installed to one side of elastic air bag, the activity rope is installed to one side of arc board, the one end fixedly connected with gravity ball of activity rope has reached and has carried out loose purpose to the silt in the manger plate frame outside, very big opening and closing power that has reduced the gate improves the work efficiency of gate.
Preferably, one side of the gravity ball is symmetrically provided with springs, and one end of each spring, which is far away from the gravity ball, is fixedly connected with a knocking plate.
Preferably, the inner wall of inside casing evenly installs the touch piece, one side sliding connection of touch piece has the arc touch board, first magnet piece is installed to one side that the arc touch board is close to the touch piece, the second magnet piece is installed to the inner wall of inside casing position that is close to the touch piece, has further improved and has carried out not hard up dynamics to the silt that the manger plate frame outside blockked up, has strengthened the device's practicality.
Preferably, the device of rocking includes the device frame, the internal connection of device frame has the elasticity soft board, the inside position that is close to the elasticity soft board of device frame is installed and is extruded the gasbag, one side fixedly connected with stripper bar of extrusion gasbag, one side symmetry that the stripper bar was kept away from to the elasticity soft board is installed the elasticity stripper plate, one side fixedly connected with extrusion arc board of elasticity stripper plate, the elastic sheet is installed to one side symmetry of elasticity soft board, one side and the device frame fixed connection that the elasticity soft board was kept away from to the elastic sheet has increaseed the range that the manger plate frame rocked, provides more external forces for the silt in the clearance manger plate frame outside, improves the device's mud cleaning efficiency.
(III) advantageous effects
The invention provides a lifting type water conservancy gate. The method has the following beneficial effects:
this over-and-under type water sluicegate through buoyancy's installation, utilizes the threaded rod to drive the power that the manger plate frame rises for the board that blocks water breaks away from and extends frame and vacuole formation, introduces the river and makes the buoyancy board receive buoyancy further to promote the manger plate frame, has reduced the required dynamics of promotion gate, makes the gate open more laborsavingly, reduces staff's work burden.
(two), this over-and-under type water sluicegate, through knocking device's installation, utilize elastic air bag to receive the extrusion rapid inflation to promote the arc board for the gravity ball is along the swing of activity rope and strike the inside casing, and then drives the manger plate frame and produce and rock, has reached and has carried out loose purpose to the silt in the manger plate frame outside, very big reduction the power of opening and close of gate, improvement gate's work efficiency.
(III), this over-and-under type water sluicegate, through the principle that like magnetic iron repels each other, utilize the second magnet piece to promote first magnet piece for arc touch panel drives the inside casing and produces the vibration, has further improved and has carried out not hard up dynamics to the silt that blocks up in the manger plate frame outside, has strengthened the device's practicality.
(IV), this over-and-under type water sluicegate, through the installation of rocking device, utilize extrusion gasbag inflation back reverse thrust stripper bar, make the elasticity soft board become the protrusion by sunken originally to release the elasticity stripper plate, utilize the extrusion arc board to make the device frame strike the manger plate frame, increased the range that the manger plate frame rocked, provide more external forces for the silt in the clearance manger plate frame outside, improve the device's mud cleaning efficiency.
(five), this over-and-under type water sluicegate, through spin and elastic stay cord's setting, utilize elastic stay cord constantly to drag the spin, let the spin constantly slide along buoyancy board for the manger plate frame receives even thrust, improves the device's work efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a sectional view of the water retaining frame of the present invention;
FIG. 3 is a schematic structural view of the buoyancy device of the present invention;
FIG. 4 is a schematic view of the knocking device according to the present invention;
FIG. 5 is a schematic structural diagram of the shaking apparatus according to the present invention.
In the figure: 1 outer frame, 2 rotary rods, 3 rotary discs, 4 threaded rods, 5 water retaining frames, 6 rectangular frames, 7 sealing plates, 8 buoyancy devices, 81 rotary shafts, 82 extension frames, 83 buoyancy plates, 84 rolling shafts, 85 telescopic arc plates, 86 water blocking plates, 87 extrusion blocks, 9 knocking devices, 91 inner frames, 92 connecting frames, 93 arc frames, 94 elastic air bags, 95 arc plates, 96 movable ropes, 97 gravity balls, 98 springs, 99 knocking plates, 10 shaking devices, 101 device frames, 102 elastic soft plates, 103 extrusion air bags, 104 extrusion rods, 105 elastic extrusion plates, 106 extrusion arc plates, 107 elastic plates, 11 rolling balls, 12 elastic pull ropes, 13 touch blocks, 14 arc touch plates, 15 first magnet blocks and 16 second magnet blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an over-and-under type water sluicegate, including frame 1, the top of frame 1 is connected with rotary rod 2, rotary rod 2 keeps away from frame 1's one end fixedly connected with rolling disc 3, frame 1 fixedly connected with threaded rod 4 is run through to rotary rod 2's one end, rotary rod 2's one end fixedly connected with manger plate frame 5 is kept away from to threaded rod 4, rectangle frame 6 is installed to one side symmetry of frame 1, the position symmetry that threaded rod 4 was kept away from to manger plate frame 5's inside is installed closing plate 7, buoyancy device 8 is installed to the position that closing plate 7 is close to manger plate frame 5's inside.
Buoyancy device 8 includes axis of rotation 81, the one end of axis of rotation 81 is connected with manger plate frame 5, one side fixedly connected with of axis of rotation 81 extends frame 82, the inner wall sliding connection who extends frame 82 has buoyancy board 83, one side fixedly connected with roller bearing 84 of buoyancy board 83, the inner wall sliding connection of roller bearing 84 and manger plate frame 5, it installs flexible arc board 85 to extend frame 82 near one side of manger plate frame 5, one side of manger plate frame 5 is close to the position fixedly connected with water blocking plate 86 of buoyancy board 83, the inner wall fixedly connected with extrusion piece 87 of extending frame 82.
One side of the buoyancy plate 83 close to the squeezing block 87 is connected with a rolling ball 11 in a sliding manner, one side of the rolling ball 11 is symmetrically provided with an elastic pull rope 12, and one end of the elastic pull rope 12 far away from the rolling ball 11 is fixedly connected with the buoyancy plate 83.
During the use, rotatory rolling disc 3 makes threaded rod 4 drive water blocking frame 5 rise, water blocking frame 5 rises the in-process and drives extension frame 82 and rotate along axis of rotation 81, when extension frame 82 rotates certain angle, water blocking plate 86 breaks away from after extending frame 82, form the cavity and soak river between water blocking plate 86 and the extension frame 82, rivers go into the position that drives buoyancy board 83 in the water blocking frame 5 and rise, buoyancy board 83 receives buoyancy pulling roller 84, drive and extend frame 82 and promote water blocking frame 5 and rise, through the installation of buoyancy device, utilize the power that the threaded rod drove the rising of water blocking frame, make water blocking plate break away from and extend the frame and form the cavity, introduce river water and make buoyancy board receive buoyancy further to promote water blocking frame, the required dynamics of lift gate has been reduced, make and open the gate more laborsaving, reduce staff's work burden.
Buoyancy board 83 receives buoyancy when extending the inside slip of frame 82, drives spin 11 and slides along buoyancy board 83, and elasticity stay cord 12 constantly pulls spin 11 this moment for the gliding range increase of spin 11 utilizes the elasticity stay cord constantly to pull the spin through the setting of spin and elasticity stay cord, lets the spin constantly slide along buoyancy board, makes the manger plate frame receive even thrust, improves the device's work efficiency.
Example two
Referring to fig. 1-4, the present invention provides a technical solution: on the basis of embodiment one, knocking device 9 is installed to the inside position that is close to threaded rod 4 of manger plate frame 5, knocking device 9 includes inside casing 91, and the connection frame 92 is installed to one side of inside casing 91, and the one end of connection frame 92 runs through manger plate frame 5 and is connected with arc frame 93, and the internally mounted of arc frame 93 has elastic air bag 94, and arc board 95 is installed to one side of elastic air bag 94, and movable rope 96 is installed to one side of arc board 95, and movable rope 96's one end fixedly connected with gravity ball 97.
Springs 98 are symmetrically arranged on one side of the gravity ball 97, and one end of each spring 98, which is far away from the gravity ball 97, is fixedly connected with a knocking plate 99.
The inner wall of inside casing 91 evenly installs touch piece 13, and one side sliding connection of touch piece 13 has arc touch panel 14, and arc touch panel 14 is close to the one side of touch piece 13 and is installed first magnet piece 15, and the position that the inner wall of inside casing 91 is close to touch piece 13 installs second magnet piece 16.
During the use, manger plate frame 5 increases the resistance with water contact at the in-process that rises, make arc frame 93 extruded and extrude elasticity gasbag 94 to inside, elasticity gasbag 94 is extruded rapid expansion volume and is increased, promote arc 95 and make activity rope 96 pulling gravity ball 97 swing, strike board 99 constantly strikes inside casing 91 through the elasticity of spring 98 when gravity ball 97 swings, make inside casing 91 produce the vibration and drive manger plate frame 5 and rock, through the installation of knocking device, utilize elasticity gasbag to receive extrusion rapid expansion promotion arc that expands, make gravity ball swing and strike the inside casing along the activity rope, and then drive the manger plate frame and produce and rock, reached and carried out loose purpose to the silt in the manger plate frame outside, very big reduction the power of opening and closing of gate, improve the work efficiency of gate.
Gravity ball 97 touches arc touch panel 14 when the swing, extrudees arc touch panel 14 to touching piece 13 for second magnet piece 16 is pressed close to first magnet piece 15, through the principle that like polarity magnet repels each other, utilizes the second magnet piece to promote first magnet piece, makes arc touch panel drive the inside casing and produces the vibration, has further improved and has carried out not hard up dynamics to the silt that blocks up in the manger plate frame outside, has strengthened the device's practicality.
EXAMPLE III
Referring to fig. 1-5, the present invention provides a technical solution: on the basis of the second embodiment, the shaking device 10 is installed at the position, close to the water blocking frame 5, of one side of the rectangular frame 6, the shaking device 10 comprises a device frame 101, the inside of the device frame 101 is connected with an elastic soft plate 102, the position, close to the elastic soft plate 102, of the inside of the device frame 101 is provided with an extrusion air bag 103, one side of the extrusion air bag 103 is fixedly connected with an extrusion rod 104, one side of the elastic soft plate 102, far away from the extrusion rod 104, is symmetrically provided with an elastic extrusion plate 105, one side of the elastic extrusion plate 105 is fixedly connected with an extrusion arc plate 106, one side of the elastic soft plate 102 is symmetrically provided with elastic pieces 107, and one side, far away from the elastic soft plate 102, of the elastic pieces 107 is fixedly connected with the device frame 101.
During the use, outer wall touches device frame 101 when manger plate frame 5 rises, with device frame 101 extrusion, elasticity soft board 102 is promoted extrusion stem 104 by the extrusion, make extrusion gasbag 103 atress receive the inflation fast, extrusion gasbag 103 after the inflation is because volume increase reverse thrust extrusion stem 104, elasticity soft board 102 becomes the protrusion by sunken originally this moment, release elasticity stripper 105, utilize extrusion arc 106 striking device frame 101, make device frame 101 atress strike manger plate frame 5, through the installation of rocking device, utilize extrusion gasbag inflation back reverse thrust extrusion stem, make elasticity soft board become the protrusion by sunken originally, and release elasticity stripper, utilize extrusion arc to make the device frame strike the manger plate frame, the range that the manger plate frame rocked has been increaseed, provide more external force for clearing up the silt in the manger plate frame outside, improve the device's mud cleaning efficiency.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising" is used to specify the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof, but does not exclude the presence of other similar features, integers, steps, operations, components, or groups thereof.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a over-and-under type water sluicegate, includes frame (1), its characterized in that: the top of the outer frame (1) is connected with a rotating rod (2), one end of the rotating rod (2) far away from the outer frame (1) is fixedly connected with a rotating disc (3), one end of the rotating rod (2) penetrates through the outer frame (1) and is fixedly connected with a threaded rod (4), one end of the threaded rod (4) far away from the rotating rod (2) is fixedly connected with a water retaining frame (5), one side of the outer frame (1) is symmetrically provided with a rectangular frame (6), the inner part of the water retaining frame (5) far away from the threaded rod (4) is symmetrically provided with a sealing plate (7), a buoyancy device (8) is arranged in the water retaining frame (5) close to the sealing plate (7), a knocking device (9) is arranged in the water retaining frame (5) and close to the threaded rod (4), and a shaking device (10) is arranged at one side of the rectangular frame (6) close to the water retaining frame (5).
2. The elevating water sluicegate of claim 1, wherein: buoyancy device (8) include axis of rotation (81), the one end and the manger plate frame (5) of axis of rotation (81) are connected, one side fixedly connected with of axis of rotation (81) extends frame (82), the inner wall sliding connection who extends frame (82) has buoyancy board (83), one side fixedly connected with roller bearing (84) of buoyancy board (83), the inner wall sliding connection of roller bearing (84) and manger plate frame (5), extend frame (82) and install flexible arc board (85) near one side of manger plate frame (5), the position fixedly connected with that one side of manger plate frame (5) is close to buoyancy board (83) blocks water board (86), the inner wall fixedly connected with extrusion piece (87) of extending frame (82).
3. The elevating water sluicegate of claim 2, wherein: one side of the buoyancy plate (83) close to the extrusion block (87) is connected with a rolling ball (11) in a sliding mode, one side of the rolling ball (11) is symmetrically provided with an elastic pull rope (12), and one end, far away from the rolling ball (11), of the elastic pull rope (12) is fixedly connected with the buoyancy plate (83).
4. The elevating water sluicegate of claim 1, wherein: knocking device (9) includes inside casing (91), connecting frame (92) are installed to one side of inside casing (91), the one end of connecting frame (92) is run through manger plate frame (5) and is connected with arc frame (93), the internally mounted of arc frame (93) has elastic air bag (94), arc board (95) are installed to one side of elastic air bag (94), movable rope (96) are installed to one side of arc board (95), the one end fixedly connected with gravity ball (97) of movable rope (96).
5. The elevating water sluicegate of claim 4, wherein: springs (98) are symmetrically arranged on one side of the gravity ball (97), and a knocking plate (99) is fixedly connected to one end, far away from the gravity ball (97), of each spring (98).
6. The elevating water sluicegate of claim 4, wherein: touch piece (13) are evenly installed to the inner wall of inside casing (91), one side sliding connection of touch piece (13) has arc touch panel (14), first magnet piece (15) are installed to one side that arc touch panel (14) are close to touch piece (13), second magnet piece (16) are installed to the position that the inner wall of inside casing (91) is close to touch piece (13).
7. The elevating water sluicegate of claim 1, wherein: rock device (10) including device frame (101), the internal connection of device frame (101) has flexible soft board (102), the inside position that is close to flexible soft board (102) of device frame (101) installs extrusion gasbag (103), one side fixedly connected with crushing bar (104) of extrusion gasbag (103), one side symmetry that extrusion bar (104) were kept away from in flexible soft board (102) installs elasticity stripper plate (105), one side fixedly connected with extrusion arc board (106) of elasticity stripper plate (105), elastic sheet (107) are installed to one side symmetry of elasticity soft board (102), one side and device frame (101) fixed connection that elasticity soft board (102) were kept away from in elastic sheet (107).
CN202110843550.XA 2021-07-26 2021-07-26 Lifting type water conservancy gate Pending CN113404015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110843550.XA CN113404015A (en) 2021-07-26 2021-07-26 Lifting type water conservancy gate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110843550.XA CN113404015A (en) 2021-07-26 2021-07-26 Lifting type water conservancy gate

Publications (1)

Publication Number Publication Date
CN113404015A true CN113404015A (en) 2021-09-17

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Application Number Title Priority Date Filing Date
CN202110843550.XA Pending CN113404015A (en) 2021-07-26 2021-07-26 Lifting type water conservancy gate

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114803073A (en) * 2022-05-13 2022-07-29 李爱文 Seafood transport case based on buoyancy changes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208472673U (en) * 2018-05-07 2019-02-05 陈耀军 A kind of water supply and sewage work gate
CN209211399U (en) * 2018-09-02 2019-08-06 刘金菊 A kind of flume water conservancy gate
CN111877273A (en) * 2020-07-31 2020-11-03 北京融艺信息咨询有限公司 Gate for water conservancy channel
CN211922517U (en) * 2020-01-24 2020-11-13 安徽鼎顺建筑工程有限公司 Gate for water conservancy channel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208472673U (en) * 2018-05-07 2019-02-05 陈耀军 A kind of water supply and sewage work gate
CN209211399U (en) * 2018-09-02 2019-08-06 刘金菊 A kind of flume water conservancy gate
CN211922517U (en) * 2020-01-24 2020-11-13 安徽鼎顺建筑工程有限公司 Gate for water conservancy channel
CN111877273A (en) * 2020-07-31 2020-11-03 北京融艺信息咨询有限公司 Gate for water conservancy channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114803073A (en) * 2022-05-13 2022-07-29 李爱文 Seafood transport case based on buoyancy changes

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Application publication date: 20210917

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