CN110541942A - Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve - Google Patents
Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve Download PDFInfo
- Publication number
- CN110541942A CN110541942A CN201910957470.XA CN201910957470A CN110541942A CN 110541942 A CN110541942 A CN 110541942A CN 201910957470 A CN201910957470 A CN 201910957470A CN 110541942 A CN110541942 A CN 110541942A
- Authority
- CN
- China
- Prior art keywords
- wedge
- frame
- outlet valve
- flashboard
- gate
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims description 33
- 235000000396 iron Nutrition 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims 1
- 239000003621 irrigation water Substances 0.000 abstract description 5
- 230000002262 irrigation Effects 0.000 abstract description 3
- 238000003973 irrigation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A wedge-shaped strong water stopping tooth transmission type water inlet and outlet valve relates to a water inlet and outlet valve. The invention aims to solve the problem that the existing water inlet and outlet valve is not suitable for the gate engineering of the low-water-head irrigation water diversion canal head. The lower part of a gate plate (1) is wedge-shaped, a gate plate frame (2) is vertically connected to a pipeline or a water delivery channel (A), and the gate plate (1) moves up and down in the gate plate frame (2) through a transmission case (11); transmission case (11) are including driving rack (5), drive gear (6), handle (7) and protecting cover (8), driving rack (5) vertical setting, and driving rack (5) are connected with the upper end of flashboard (1), drive gear (6) rotate and install in the upper portion of flashboard frame (2), drive gear (6) and driving rack (5) meshing, handle (7) are installed in the outside of flashboard frame (2) and are connected with drive gear (6), protecting cover (8) lid dress is in flashboard frame (2) upper end. The invention is suitable for the low water head irrigation diversion canal.
Description
Technical Field
The invention relates to a water inlet and outlet valve, in particular to a wedge-shaped strong water stop tooth transmission type water inlet and outlet valve.
Background
Adopt more traditional plate valve and ball valve at present, have not fully satisfactory part: the flat gate valve is slowly opened and has poor sealing effect, water is blocked, and water flow resistance is obviously increased; the ball valve structure requires high precision and is sealed by tight fit, the manufacturing cost is high, and the opening resistance is large; both the two have the inconvenience of operation and short service life, bring trouble and make engineering year shorten for engineering management maintenance.
The conventional flat gate valve has several disadvantages and shortcomings: 1. the width of the gate bottom plate is mainly determined by the water retaining height of the gate and the arrangement of the upper structure, the section is overhigh, and the water pressure is high; 2. the thickness of the gate bottom plate is determined by the internal force of the structure, the anti-skid stability and the local freezing depth. In the alpine region, the thickness of the gate bottom plate is generally 1.5 m-2.0 m, even more than 2.0 m; 3. anti-skid is often the controlling condition for stability of a flat foundation gate. The anti-slip force is determined by the self weight of the foundation and the upper structure and the friction coefficient between the water weight of the foundation and the foundation, the floating force generated under the foundation plate is larger than the weight of the water body on the foundation plate, and the anti-slip stability is very unfavorable. Meanwhile, a large amount of reinforced concrete materials are uneconomical when used as the weight; 4. in order to maintain stable seepage, the lengthening of the bottom plate or the lengthening of the upstream apron are often considered; 5. if a frozen soil layer is formed on the frost heaving foundation under the flat foundation, the gate can be subjected to the vertical frost heaving force which can hardly be resisted. This basic form is clearly applicable and necessary for barrage works with high water heads or traffic bridges on the top. But a great deal of waste is caused for the gate engineering of a large amount of low-water-head irrigation diversion canal heads.
In conclusion, the existing water inlet and outlet valve is not suitable for the gate engineering of the low-water-head irrigation diversion canal head.
Disclosure of Invention
The invention aims to solve the problem that the existing water inlet and outlet valve is not suitable for the gate engineering of the low-water-head irrigation water diversion canal head. Further provides a wedge-shaped strong water stopping tooth transmission type water inlet and outlet valve.
The technical scheme of the invention is as follows: a wedge-shaped strong water stop tooth transmission type water inlet and outlet valve comprises a gate plate frame, a gate plate and a transmission case, wherein the lower part of the gate plate is wedge-shaped, the gate plate frame is vertically connected to a pipeline or a water delivery channel, and the gate plate moves up and down in the gate plate frame through the transmission case; the transmission case includes driving rack, drive gear, handle and protecting cover, and the vertical setting of driving rack, and driving rack is connected with the upper end of flashboard, and drive gear rotates and installs in the upper portion of flashboard frame, and drive gear meshes with driving rack, and the handle is installed in the outside of flashboard frame and is connected with drive gear, and the protecting cover lid dress is in the flashboard frame upper end.
Furthermore, the device also comprises a plurality of plate frame fixing pieces, and the inner side wall of the pipeline or the water delivery channel is connected with the gate plate frame through the plurality of plate frame fixing pieces.
Furthermore, triangular irons are arranged on two sides of the lower end face of the flashboard.
Furthermore, the transmission case still includes rings, passes through rings between the upper end of transmission rack and the flashboard and connects.
Furthermore, the transmission case also comprises a limit bearing, and the limit bearing is rotatably arranged in the gate plate frame and is propped against the other end of the transmission rack.
Further, the transmission case also comprises a locking pin which is arranged on the protective cover.
Further, it still includes seal assembly, and seal assembly installs the bottom at the ram frame.
furthermore, the sealing assembly comprises two oval I-shaped sealing strips, an auxiliary plate and a sealing strip mounting plate, the sealing strip mounting plate is mounted on the inner side wall of the gate plate frame, one sides of the two oval I-shaped sealing strips are respectively inserted and mounted on the sealing strip mounting plate, and the two oval I-shaped sealing strips are connected through the sealing strip mounting plate in an inserted and mounted mode.
Compared with the prior art, the invention has the following effects:
1. The invention only needs to connect the plate frame fixing piece with the water supply pipeline, and the overflowing and water stopping of the pipe (channel) can be completed without too much material resources and financial resources.
2. The wedge-shaped gate has small gate opening and closing resistance, and is very convenient and quick to close and open. The problem that the existing brake bottom plate is inconvenient to close is effectively avoided.
3. The opening speed of the gear rack transmission is dozens of times faster than that of the screw rod, the screw rod can only move a few millimeters after rotating a circle, and the transmission can move a few hundred millimeters after rotating a circle; the lateral rotation opening and closing is more convenient than the horizontal rotation operation.
4. The invention adopts the oval I-shaped sealing strip for the automobile glass to ensure that the water-stopping effect is stronger.
5. The invention can work only by directly installing the invention on a pipe or a channel, thereby achieving the effects of saving labor, time and materials; the structure is simple and compact, and the device is directly connected with the structure, flexible to use, safe and reliable; and can finish water supply and water cut-off fast, has raised the working efficiency greatly, has realized the purpose of saving cost and reducing consumption, increasing the income.
6. The width of the gate of the invention is related to the width of the installed pipeline or water delivery channel, and the applicable environment is low water head irrigation water diversion, the common water channel irrigation water diversion of rice is narrow, the water pressure is controllable, and the gate can be opened and closed quickly through the wedge-shaped gate. In addition, the application environment of the invention is not affected by the problems of stable anti-skid, stable seepage, vertical frost heaving force and the like.
Drawings
FIG. 1 is a front view of the present invention; FIG. 2 is a side view of the gate and handle combination of the present invention; FIG. 3 is a schematic structural view of a seal assembly; fig. 4 is a schematic diagram of the invention applied to a low-water-head irrigation water diversion state.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 4, and the wedge-shaped strong water tooth transmission type water inlet and outlet valve of the embodiment comprises a gate plate frame 2, a gate plate 1 and a transmission case 11, wherein the lower part of the gate plate 1 is wedge-shaped, the gate plate frame 2 is vertically connected to a pipeline or a water delivery channel a, and the gate plate 1 moves up and down in the gate plate frame 2 through the transmission case 11; the transmission case 11 includes driving rack 5, drive gear 6, handle 7 and protecting cover 8, and 5 vertical settings of driving rack, and driving rack 5 is connected with the upper end of flashboard 1, and drive gear 6 rotates and installs in the upper portion of flashboard frame 2, and drive gear 6 meshes with driving rack 5, and handle 7 is installed in the outside of flashboard frame 2 and is connected with drive gear 6, and 8 lid dress of protecting cover are in flashboard frame 2 upper end.
the whole body of the invention is fixed on a pipeline or a channel through a plate frame fixing piece, the gate plate is controlled to move in the gate plate frame to open and close the gate by driving a gear transmission rack through a handle, and the gate plate is sealed by a sealing ring and locked by a locking pin; the plate frame is internally provided with a strong water-stopping sealing strip and is fastened in the plate frame.
The invention provides the wedge-shaped strong water stopping tooth transmission type water inlet and outlet valve which has the advantages of simple structure, low cost, safety, reliability, convenience in use, simplicity and convenience in construction, firm structure, time saving and labor saving, capability of more fully utilizing the wedge-shaped overflowing section, greatly reducing the opening and closing resistance, increasing the opening and closing speed on the premise of keeping the manufacturing cost lower, enhancing the sealing effect and facilitating the operation.
The wedge-shaped gate of the embodiment enables the gate to be small in opening and closing resistance and free of the resistance of the sealing rubber strip.
The embodiment adopts a transmission form of a gear rack, so that the opening speed is dozens of times faster than that of the screw rod, and the working efficiency is greatly improved.
The second embodiment is as follows: the embodiment is described with reference to fig. 1 and 4, and the embodiment further includes a plurality of plate frame fixing members 3, and the inner side wall of the pipeline or the water delivery channel a is connected with the gate plate frame 2 through the plurality of plate frame fixing members 3. So set up, be convenient for be connected with pipeline or water delivery channel A, can adopt the bolt to be connected plate frame mounting and pipeline or water delivery channel A. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: referring to fig. 3, the embodiment will be described, in which triangular irons 1-1 are provided on both sides of the lower end surface of the shutter 1. So set up, the gate of being convenient for can push down oval I-shaped sealing strip through the triangle iron at downstream's closing in-process, improves sealed effect. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: referring to fig. 1, the transmission case 11 of the present embodiment further includes a lifting ring 4, and the transmission rack 5 is connected to the upper end of the gate plate 1 through the lifting ring 4. So set up, be convenient for be connected driving rack 5 and flashboard 1, guarantee the reliability of connecting. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 1, the transmission case 11 of the present embodiment further includes a limit bearing 10, and the limit bearing 10 is rotatably installed in the gate frame 2 and abuts against the other end of the transmission rack 5. So set up, be convenient for driving rack 5 provides the support, guarantee that driving rack 5 moves in vertical direction, guarantee the precision of motion. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: referring to the present embodiment described with reference to fig. 1 to 4, the transmission case 11 of the present embodiment further includes a locking pin 9, and the locking pin 9 is mounted on the protective cover 8. So set up, be convenient for install the protecting cover location on flashboard frame 2. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the present embodiment is described with reference to fig. 1 and 3, and further includes a seal assembly mounted at the bottom end of the ram frame 2. So set up, be convenient for the bottom of gate and the sealed between the gate frame, prevent to seal not good leaking, the water economy resource. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1 and 3, the sealing assembly of the embodiment includes two elliptical i-shaped sealing strips 12, an auxiliary plate 13 and a sealing strip mounting plate 14, the sealing strip mounting plate 14 is mounted on the inner side wall of the ram frame 2, one side of each of the two elliptical i-shaped sealing strips 12 is respectively inserted into the sealing strip mounting plate 14, and the two elliptical i-shaped sealing strips 12 are connected by the sealing strip mounting plate 14 in an inserted manner. So set up, the installation fastness of the oval I-shaped sealing strip of being convenient for guarantees sealed effect. Other compositions and connection relationships are the same as those of embodiment one, two, three, four, five, six or seven.
The working principle of the invention is as follows:
The whole body is fixed on a pipeline and a water delivery channel by a plate frame fixing part 3, a flashboard 1 reciprocates in a flashboard frame 2, the flashboard is connected with a transmission rack 5 by a hoisting ring 4, the rack is limited by a limit bearing 10 in a transmission box 11, and a transmission rack of a transmission gear 6 is driven by a rotating handle 7 to drive the flashboard to open and close; the gate plate is locked by a locking pin 9 fixed on a protecting cover 8, and the gate plate seal is efficiently sealed by an oval I-shaped sealing strip 12 fixed on the inner container of the plate frame for the automobile glass.
Claims (8)
1. The utility model provides a wedge is stagnant water tooth driven type business turn over water valve by force, it includes brake plate frame (2), its characterized in that: the water pipe is characterized by further comprising a gate plate (1) and a transmission case (11), wherein the lower part of the gate plate (1) is wedge-shaped, a gate plate frame (2) is vertically connected to a pipeline or a water delivery channel (A), and the gate plate (1) moves up and down in the gate plate frame (2) through the transmission case (11); transmission case (11) are including driving rack (5), drive gear (6), handle (7) and protecting cover (8), driving rack (5) vertical setting, and driving rack (5) are connected with the upper end of flashboard (1), drive gear (6) rotate and install in the upper portion of flashboard frame (2), drive gear (6) and driving rack (5) meshing, handle (7) are installed in the outside of flashboard frame (2) and are connected with drive gear (6), protecting cover (8) lid dress is in flashboard frame (2) upper end.
2. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 1, characterized in that: it still includes a plurality of sheet frame mounting (3), is connected through a plurality of sheet frame mounting (3) between inside wall and the brake plate frame (2) of pipeline or water delivery channel (A).
3. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 2, characterized in that: triangular irons (1-1) are arranged on two sides of the lower end surface of the flashboard (1).
4. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 3, characterized in that: the transmission case (11) further comprises a lifting ring (4), and the transmission rack (5) is connected with the upper end of the flashboard (1) through the lifting ring (4).
5. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 4, wherein: the transmission case (11) further comprises a limiting bearing (10), and the limiting bearing (10) is rotatably installed in the gate frame (2) and is abutted to the other end of the transmission rack (5).
6. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 5, characterized in that: the transmission case (11) also comprises a locking pin (9), and the locking pin (9) is arranged on the protective cover (8).
7. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 6, wherein: it still includes seal assembly, and seal assembly installs the bottom at flashboard frame (2).
8. The wedge-shaped strong water stop tooth transmission type water inlet and outlet valve as claimed in claim 7, wherein: the sealing assembly comprises two oval I-shaped sealing strips (12), an auxiliary plate (13) and a sealing strip mounting plate (14), the sealing strip mounting plate (14) is mounted on the inner side wall of the gate frame (2), one sides of the two oval I-shaped sealing strips (12) are respectively inserted into the sealing strip mounting plate (14), and the two oval I-shaped sealing strips (12) are connected through the sealing strip mounting plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957470.XA CN110541942A (en) | 2019-10-09 | 2019-10-09 | Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957470.XA CN110541942A (en) | 2019-10-09 | 2019-10-09 | Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541942A true CN110541942A (en) | 2019-12-06 |
Family
ID=68715457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910957470.XA Pending CN110541942A (en) | 2019-10-09 | 2019-10-09 | Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541942A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA800253A (en) * | 1968-12-03 | E. Palmer Charles | Sluice gate | |
| US4726709A (en) * | 1986-09-23 | 1988-02-23 | Camille Labelle | Sealing assemblies |
| CN2411277Y (en) * | 2000-03-28 | 2000-12-20 | 庄学山 | Automatic sewage stop and flood drainage floating gate |
| CN201190801Y (en) * | 2008-05-01 | 2009-02-04 | 冯海峻 | Gate type water valve |
| KR20120015475A (en) * | 2010-08-12 | 2012-02-22 | 김병수 | Watergate openning and shutting device for agricultural waterway |
| CN204510159U (en) * | 2015-02-07 | 2015-07-29 | 李刚 | A kind of novel open type drainage gate |
| CN207648167U (en) * | 2017-11-19 | 2018-07-24 | 永嘉纽拓阀门有限公司 | A kind of gate valve easy to operation |
| CN207794030U (en) * | 2018-01-29 | 2018-08-31 | 李朝阳 | A kind of water conservancy gate |
| JP2019007524A (en) * | 2017-06-22 | 2019-01-17 | 株式会社木村技研 | Shutoff valve and water leakage control system |
| CN208870007U (en) * | 2018-10-15 | 2019-05-17 | 山东海晟水利工程有限公司 | A kind of hydraulic engineering sluice gate |
| CN109837977A (en) * | 2019-01-15 | 2019-06-04 | 白绍臣 | A kind of tank field open drain cutting-off valve |
| CN209130272U (en) * | 2018-08-21 | 2019-07-19 | 盐城市琪航石油机械有限公司 | A kind of push type petroleum machinery valve |
| CN210661438U (en) * | 2019-10-09 | 2020-06-02 | 黑龙江省水利科学研究院 | Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve |
-
2019
- 2019-10-09 CN CN201910957470.XA patent/CN110541942A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA800253A (en) * | 1968-12-03 | E. Palmer Charles | Sluice gate | |
| US4726709A (en) * | 1986-09-23 | 1988-02-23 | Camille Labelle | Sealing assemblies |
| CN2411277Y (en) * | 2000-03-28 | 2000-12-20 | 庄学山 | Automatic sewage stop and flood drainage floating gate |
| CN201190801Y (en) * | 2008-05-01 | 2009-02-04 | 冯海峻 | Gate type water valve |
| KR20120015475A (en) * | 2010-08-12 | 2012-02-22 | 김병수 | Watergate openning and shutting device for agricultural waterway |
| CN204510159U (en) * | 2015-02-07 | 2015-07-29 | 李刚 | A kind of novel open type drainage gate |
| JP2019007524A (en) * | 2017-06-22 | 2019-01-17 | 株式会社木村技研 | Shutoff valve and water leakage control system |
| CN207648167U (en) * | 2017-11-19 | 2018-07-24 | 永嘉纽拓阀门有限公司 | A kind of gate valve easy to operation |
| CN207794030U (en) * | 2018-01-29 | 2018-08-31 | 李朝阳 | A kind of water conservancy gate |
| CN209130272U (en) * | 2018-08-21 | 2019-07-19 | 盐城市琪航石油机械有限公司 | A kind of push type petroleum machinery valve |
| CN208870007U (en) * | 2018-10-15 | 2019-05-17 | 山东海晟水利工程有限公司 | A kind of hydraulic engineering sluice gate |
| CN109837977A (en) * | 2019-01-15 | 2019-06-04 | 白绍臣 | A kind of tank field open drain cutting-off valve |
| CN210661438U (en) * | 2019-10-09 | 2020-06-02 | 黑龙江省水利科学研究院 | Wedge-shaped strong water stop tooth transmission type water inlet and outlet valve |
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