CN208237291U - A kind of attachment device of water conservancy irrigation pipeline - Google Patents
A kind of attachment device of water conservancy irrigation pipeline Download PDFInfo
- Publication number
- CN208237291U CN208237291U CN201820366870.4U CN201820366870U CN208237291U CN 208237291 U CN208237291 U CN 208237291U CN 201820366870 U CN201820366870 U CN 201820366870U CN 208237291 U CN208237291 U CN 208237291U
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- CN
- China
- Prior art keywords
- pipe
- hole
- fixedly connected
- water conservancy
- conservancy irrigation
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 230000002262 irrigation Effects 0.000 title claims abstract description 19
- 238000003973 irrigation Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- Nozzles (AREA)
Abstract
The utility model discloses a kind of attachment devices of water conservancy irrigation pipeline, including first pipe and second pipe, and first pipe right side and second pipe fit closely, the inner sidewall right end of the first pipe is longitudinally fixed to be connected with filter screen, it is longitudinal on the downside of the right end of the first pipe to offer mudhole, and mudhole is located at the left side of filter screen, the lower surface of the first pipe is hinged with material storing box, and the upper surface of material storing box and the lower surface of first pipe fit closely, the mudhole is connected with material storing box.The attachment device of the water conservancy irrigation pipeline, pass through the cooperation of inclined-plane bar, magnet and dredger, it solves current pumping conduit and is easy blocking, the water attracted often has dirt, dirt is not easy to collect, and the problem of pumping conduit can sometimes be rushed by the higher water flow of flow velocity, and upper and lower change in displacement easily occurs for the junction of water inlet pipe and outlet pipe, and when Pipeline damage can not be replaced in time.
Description
Technical field
The utility model relates to water conservancy irrigation pipe technology field, the connection of specially a kind of water conservancy irrigation pipeline is filled
It sets.
Background technique
Hydraulic engineering is the surface water and groundwater for controlling and deploying nature, reaches and removes the evil emerging sharp purpose and build
Engineering, also referred to as Hydraulic Projects, it is a kind of form of expression of mankind's modern agriculture, greatly that river water intaking, which carries out field irrigation,
The development of agricultural is pushed, river water intaking generally requires powerful pumping equipment, by pumping conduit, by river when irrigating
The water resource of stream is introduced into the irrigation canals and ditches for extending to field, but current pumping conduit is easy blocking, and the water attracted often has dirt
Object, dirt are not easy to collect, and pumping conduit can sometimes be rushed by the higher water flow of flow velocity, the company of water inlet pipe and outlet pipe
Connect place easily occur above and below change in displacement, when Pipeline damage can not replace in time.
Utility model content
The purpose of this utility model is to provide a kind of attachment devices of water conservancy irrigation pipeline, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of connection dress of water conservancy irrigation pipeline
Set, including first pipe and second pipe, and the right side of first pipe and second pipe fit closely, the first pipe it is interior
Side wall right end is longitudinally fixed to be connected with filter screen, and longitudinal direction offers mudhole, and mudhole on the downside of the right end of the first pipe
Positioned at the left side of filter screen, the lower surface of the first pipe is hinged with material storing box, and the upper surface of material storing box and first pipe
Lower surface fit closely, the mudhole is connected with material storing box, offer the first circular hole on the upside of the right surface of first pipe,
The left end of first circular hole is fixedly connected with magnet, and the left surface of the second pipe offers first through hole, and first
Through-hole is connected with the first circular hole, and the upper surface of the second pipe offers the second circular hole, and on the downside of the left end of the second circular hole
It is connected with first through hole, the inner sidewall left end of the first through hole is fixedly connected with plectane, the left surface center of the plectane
Inclined-plane bar is extended transversely through, the lateral wall of the inclined-plane bar is fixedly connected with pressing plate, and the lateral wall of the inclined-plane bar is socketed with bullet
Spring, and spring, between plectane and pressing plate, the inner sidewall of second circular hole is fixedly installed with sliding rail, the inside of the sliding rail
Top is fixedly connected with transverse slat, and the upper surface of the transverse slat is rotatably connected to screw rod, and screw rod is outside transverse slat, the screw rod
Side wall is bolted with sliding block, and sliding block is fixedly connected with ramp blocks on front side of the internal slide of sliding rail, the lower surface of the sliding block, and
Ramp blocks are located at the front side of screw rod, and the right surface of the inclined-plane bar and the lower surface of ramp blocks fit closely, the top of the screw rod
End is fixedly connected with handle, and the rear wall of the first pipe is fixedly installed with dredger, and dredger is located at filter screen
Left side.
Preferably, the dredger includes shell, and the rear surface of shell is fixedly mounted on the inner sidewall of first pipe,
The inner rear face of the shell is fixedly installed with motor, and motor is electrically connected to a power source, and the output revolving shaft of the motor is fixed
It is connected with rotary shaft, the right end of the rotary shaft is fixedly connected with worm screw, and the inner rear face of the shell is rotatably connected to snail
Wheel, and the lower surface of worm screw is fitted closely with worm gear, the front surface bottom end of the worm gear is hinged with brace, the right end of the shell
Middle part offers the second through-hole, and the inside of second through-hole, which is run through, spreader, and the left end of spreader and brace are hinged.
Preferably, the inner sidewall of second through-hole is fixedly connected with sealing ring, and spreader runs through sealing ring.
Preferably, the lateral wall of the handle is equipped with anti-slip layer.
Preferably, the upper side wall of the second pipe is hinged with shield, and shield is located at the outside of handle, and protects
The lower surface of cover is fitted closely with second pipe.
Compared with prior art, the utility model has the beneficial effects that the attachment device of the water conservancy irrigation pipeline, passes through
The cooperation of inclined-plane bar, magnet and dredger, handle grip movable slider and ramp blocks slide downward, until ramp blocks can not be downward
When mobile and irony inclined-plane bar and magnet absorption connect, such water flow can not allow first pipe and second pipe wrong when excessive
Position, reversely rotate handle, handle grip movable slider sliding rail inside upward sliding, until inclined-plane bar remove the first circular hole, in this way
First pipe and second pipe can separate, and carry out replacement processing, and motor drives spreader to do the reciprocating motion of left and right, in this way may be used
To prevent the soil plug filter screen in water, soil falls to the inside of material storing box along filter screen, can be convenient soil in this way
Collection, solve current pumping conduit and be easy blocking, the water attracted often has dirt, and dirt is not easy to collect, and takes out
Waterpipe can sometimes be rushed by the higher water flow of flow velocity, and the junction of water inlet pipe and outlet pipe easily occurs upper and lower displacement and becomes
Change, the problem of when Pipeline damage can not be replaced in time, meets the use demand of user.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model detail view a；
Fig. 3 is the schematic cross-sectional view of the utility model dredger.
In figure: 1, first pipe, 2, second pipe, 3, filter screen, 4, mudhole, 5, material storing box, the 6, first circular hole, 7,
One through-hole, the 8, second circular hole, 9, plectane, 10, inclined-plane bar, 11, pressing plate, 12, spring, 13, sliding rail, 14, transverse slat, 15, screw rod,
16, sliding block, 17, ramp blocks, 18, handle, 19, dredger, 191, shell, 192, motor, 193, rotary shaft, 194, worm screw,
195, worm gear, 196, brace, the 197, second through-hole, 198, spreader, 199, sealing ring, 20, anti-slip layer, 21, shield, 22, suction
Iron-stone.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of attachment device of water conservancy irrigation pipeline,
Including first pipe 1 and second pipe 2, and the right side of first pipe 1 and second pipe 2 fit closely, the inside of first pipe 1
Wall right end is longitudinally fixed to be connected with filter screen 3, and longitudinal direction offers mudhole 4, and mudhole 4 on the downside of the right end of first pipe 1
In the left side of filter screen 3, the lower surface of first pipe 1 is hinged with material storing box 5, and the upper surface of material storing box 5 and first pipe 1
Lower surface fits closely, and mudhole 4 is connected with material storing box 5, offers the first circular hole 6 on the upside of the right surface of first pipe 1, the
The left end of one circular hole 6 is fixedly connected with magnet 22, and the left surface of second pipe 2 offers first through hole 7, and first through hole 7
It is connected with the first circular hole 6, the upper surface of second pipe 2 offers the second circular hole 8, and with the on the downside of the left end of the second circular hole 8
One through-hole 7 is connected, and the inner sidewall left end of first through hole 7 is fixedly connected with plectane 9, and the left surface central cross of plectane 9 runs through
There is inclined-plane bar 10, the material of such inclined-plane bar 10 is ferrous material, can adsorb magnet 22, the lateral wall of inclined-plane bar 10 is fixed
It is connected with pressing plate 11, the lateral wall of inclined-plane bar 10 is socketed with spring 12, and spring 12 is between plectane 9 and pressing plate 11, and second
The inner sidewall of circular hole 8 is fixedly installed with sliding rail 13, and the inner tip of sliding rail 13 is fixedly connected with transverse slat 14, the upper surface of transverse slat 14
It is rotatably connected to screw rod 15, and screw rod 15 runs through transverse slat 14, the lateral wall of screw rod 15 is bolted with sliding block 16, and sliding block 16 is in sliding rail
The lower surface front side of 13 internal slide, sliding block 16 is fixedly connected with ramp blocks 17, and ramp blocks 17 are located at the front side of screw rod 15,
The right surface of inclined-plane bar 10 and the lower surface of ramp blocks 17 fit closely, and the top of screw rod 15 is fixedly connected with handle 18, and first
The rear wall of pipeline 1 is fixedly installed with dredger 19, and dredger 19 is located at the left side of filter screen 3.
Specifically, motor 192 drives 195 rotation of worm gear by rotary shaft 193 and 194 rotation of worm screw, worm gear 195 is driven
The left end of brace 196 is rotated around the center of worm gear 195, and then the right end promotion spreader 198 of brace 196 does the reciprocal fortune of left and right
It is dynamic, the soil plug filter screen 3 in water can be prevented in this way, and the soil on filter screen 3 can be allowed to fall downwards, dredging dress
Setting 19 includes shell 191, and the rear surface of shell 191 is fixedly mounted on the inner sidewall of first pipe 1, behind the inside of shell 191
Surface is fixedly installed with motor 192, and motor 192 is electrically connected to a power source, here the model Y250M2-4B5 of motor 192, electricity
The output revolving shaft of machine 192 is fixedly connected with rotary shaft 193, and the right end of rotary shaft 193 is fixedly connected with worm screw 194, shell 191
Inner rear face is rotatably connected to worm gear 195, and the lower surface of worm screw 194 is fitted closely with worm gear 195, the preceding table of worm gear 195
Face bottom end is hinged with brace 196, offers the second through-hole 197 in the middle part of the right end of shell 191, the inside of the second through-hole 197 is run through
There is spreader 198, and the left end of spreader 198 and brace 196 are hinged.
There is liquid to flow into when specifically, spreader 198 moving left and right in order to prevent from the second through-hole 197, the second through-hole 197
Inner sidewall be fixedly connected with sealing ring 199, and spreader 198 runs through sealing ring 199.
Specifically, in order to prevent swing handle 18 when hand slipping phenomenon occurs, the lateral wall of handle 18 is equipped with anti-skidding
Layer 20.
Specifically, water source enters the inside of shield 21 in order to prevent, the normal use of attachment device is influenced, second
The upper side wall of pipeline 2 is hinged with shield 21, and shield 21 is located at the outside of handle 18, and the lower surface of shield 21 and the
Two pipelines 2 fit closely.
Working principle: before water conservancy irrigation pipeline work, rotating handles 18, handle 18 is by screw rod 15 with movable slider 16
In the inside slide downward of sliding rail 13, and then sliding block 16 drives 17 slide downward of ramp blocks, due to ramp blocks 17 and inclined-plane bar 10
Inside by contact of incline plane, such ramp blocks 17 push inclined-plane bar 10 and pressing plate 11 to be moved to the left, and pressing plate compressed spring 12 arrives
The right surface of plectane 9, when ramp blocks 17 can not move down and the inclined-plane bar 10 of irony and the absorption of magnet 22 connect, so
The lid of shield 21 is arrived to the upper surface of second pipe 2 afterwards, such water flow can not allow first pipe 1 and second pipe 2 wrong when excessive
Position, with same principle, reversely rotates handle 18 after opening shield 21, handle 18 passes through 15 band of screw rod when Pipeline damage
Movable slider 16 sliding rail 13 inside upward sliding, since the elastic force of spring 12 here is greater than between magnet 22 and inclined-plane bar 10
Attraction, until inclined-plane bar 10 removes the first circular hole 6, such first pipe 1 and second pipe 2 can be separated, and be carried out more
Processing is changed, during water conservancy irrigation, connects the power supply of motor 192, motor 192 passes through 194 rotation of rotary shaft 193 and worm screw
195 rotation of worm gear is driven, worm gear 195 drives the left end of brace 196 to rotate around the center of worm gear 195, and then the right side of brace 196
End pushes spreader 198 to do the reciprocating motion of left and right, can prevent the soil plug filter screen 3 in water in this way, last soil along
Filter screen 3 falls to the inside of material storing box 5 by mudhole 4, can be convenient the collection of soil in this way.
In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu
Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of attachment device of water conservancy irrigation pipeline, including first pipe (1) and second pipe (2), and first pipe (1)
Right side and second pipe (2) fit closely, it is characterised in that: the longitudinally fixed company of inner sidewall right end of the first pipe (1)
It is connected to filter screen (3), it is longitudinal on the downside of the right end of the first pipe (1) to offer mudhole (4), and mudhole (4) was located at
The lower surface in the left side of strainer (3), the first pipe (1) is hinged with material storing box (5), and the upper surface of material storing box (5) and the
The lower surface of one pipeline (1) fits closely, and the mudhole (4) is connected with material storing box (5), the right surface of first pipe (1)
Upside offers the first circular hole (6), and the left end of first circular hole (6) is fixedly connected with magnet (22), the second pipe
(2) left surface offers first through hole (7), and first through hole (7) is connected with the first circular hole (6), the second pipe (2)
Upper surface offer the second circular hole (8), and the second circular hole (8) left end on the downside of be connected with first through hole (7), described first
The inner sidewall left end of through-hole (7) is fixedly connected with plectane (9), and the left surface central cross of the plectane (9), which runs through, inclined-plane bar
(10), the lateral wall of the inclined-plane bar (10) is fixedly connected with pressing plate (11), and the lateral wall of the inclined-plane bar (10) is socketed with bullet
Spring (12), and spring (12) is located between plectane (9) and pressing plate (11), the inner sidewall of second circular hole (8) is fixedly installed with
The inner tip of sliding rail (13), the sliding rail (13) is fixedly connected with transverse slat (14), and the upper surface of the transverse slat (14), which rotates, to be connected
It is connected to screw rod (15), and screw rod (15) runs through transverse slat (14), the lateral wall of the screw rod (15) is bolted with sliding block (16), and sliding block
(16) it is fixedly connected with ramp blocks (17) on front side of the internal slide of sliding rail (13), the lower surface of the sliding block (16), and inclined-plane
Block (17) is located at the front side of screw rod (15), and the right surface of the inclined-plane bar (10) and the lower surface of ramp blocks (17) fit closely,
The top of the screw rod (15) is fixedly connected with handle (18), and the rear wall of the first pipe (1) is fixedly installed with dredging dress
It sets (19), and dredger (19) is located at the left side of filter screen (3).
2. a kind of attachment device of water conservancy irrigation pipeline according to claim 1, it is characterised in that: the dredger
It (19) include shell (191), and the rear surface of shell (191) is fixedly mounted on the inner sidewall of first pipe (1), the shell
(191) inner rear face is fixedly installed with motor (192), and motor (192) is electrically connected to a power source, the motor (192)
Output revolving shaft is fixedly connected with rotary shaft (193), and the right end of the rotary shaft (193) is fixedly connected with worm screw (194), the shell
The inner rear face of body (191) is rotatably connected to worm gear (195), and the lower surface of worm screw (194) and worm gear (195) are closely pasted
It closes, the front surface bottom end of the worm gear (195) is hinged with brace (196), offers second in the middle part of the right end of the shell (191)
Through-hole (197), the inside of second through-hole (197), which is run through, to be had spreader (198), and the left end of spreader (198) and brace (196)
Hingedly.
3. a kind of attachment device of water conservancy irrigation pipeline according to claim 2, it is characterised in that: second through-hole
(197) inner sidewall is fixedly connected with sealing ring (199), and spreader (198) runs through sealing ring (199).
4. a kind of attachment device of water conservancy irrigation pipeline according to claim 1, it is characterised in that: the handle (18)
Lateral wall be equipped with anti-slip layer (20).
5. a kind of attachment device of water conservancy irrigation pipeline according to claim 1, it is characterised in that: the second pipe
(2) upper side wall is hinged with shield (21), and shield (21) is located at the outside of handle (18), and the following table of shield (21)
Face is fitted closely with second pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366870.4U CN208237291U (en) | 2018-03-18 | 2018-03-18 | A kind of attachment device of water conservancy irrigation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366870.4U CN208237291U (en) | 2018-03-18 | 2018-03-18 | A kind of attachment device of water conservancy irrigation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237291U true CN208237291U (en) | 2018-12-14 |
Family
ID=64588181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820366870.4U Active CN208237291U (en) | 2018-03-18 | 2018-03-18 | A kind of attachment device of water conservancy irrigation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208237291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413278A (en) * | 2020-11-26 | 2021-02-26 | 肖仲旺 | A prevent stifled mediation subassembly by negative pressure effect for flow control valve |
-
2018
- 2018-03-18 CN CN201820366870.4U patent/CN208237291U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413278A (en) * | 2020-11-26 | 2021-02-26 | 肖仲旺 | A prevent stifled mediation subassembly by negative pressure effect for flow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190806 Address after: No. 60 Construction Road, Beishen Village, Zhaili Town, Zichuan District, Zibo City, Shandong Province Patentee after: SHANDONG FANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 362000 Yudou Village, Yudou Town, Yongchun County, Quanzhou City, Fujian Province Patentee before: Wang Biqun |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connecting device for water conservancy irrigation pipeline Effective date of registration: 20220331 Granted publication date: 20181214 Pledgee: Zichuan Zibo rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG FANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2022980003549 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230329 Granted publication date: 20181214 Pledgee: Zichuan Zibo rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG FANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2022980003549 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connecting device for water conservancy irrigation pipelines Effective date of registration: 20230403 Granted publication date: 20181214 Pledgee: Zichuan Zibo rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG FANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980037239 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181214 Pledgee: Zichuan Zibo rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG FANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980037239 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connecting device for water conservancy irrigation pipelines Granted publication date: 20181214 Pledgee: Zichuan Zibo rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG FANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2024980013219 |