CN107816012A - A kind of hydraulic engineering slope protection net with grasping function - Google Patents

A kind of hydraulic engineering slope protection net with grasping function Download PDF

Info

Publication number
CN107816012A
CN107816012A CN201711126126.3A CN201711126126A CN107816012A CN 107816012 A CN107816012 A CN 107816012A CN 201711126126 A CN201711126126 A CN 201711126126A CN 107816012 A CN107816012 A CN 107816012A
Authority
CN
China
Prior art keywords
slope protection
protection net
cavity
fixedly connected
fixed
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.)
Withdrawn
Application number
CN201711126126.3A
Other languages
Chinese (zh)
Inventor
毛永远
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.)
Jiangsu European Oil Technology Co Ltd
Original Assignee
Jiangsu European Oil Technology Co Ltd
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 Jiangsu European Oil Technology Co Ltd filed Critical Jiangsu European Oil Technology Co Ltd
Priority to CN201711126126.3A priority Critical patent/CN107816012A/en
Publication of CN107816012A publication Critical patent/CN107816012A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122Flexible prefabricated covering elements, e.g. mats, strips

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

The invention discloses a kind of hydraulic engineering slope protection net with grasping function, including slope protection net body, the left and right sides of the slope protection net body to be fixedly connected with fixed plate, and the bottom surface of slope protection net body is fixedly connected with the first fixed cone being spaced substantially equidistant.This has the hydraulic engineering slope protection net of grasping function, by being provided with fixed plate, stabilization can be carried out to slope protection net body, under the collective effect of the first chute and the first sliding block, utilize the elastic force of the first spring, push rod can promote to movable block, the second fixed cone can be driven to be moved in the inside of the second cavity, second fixed cone can reasonably be promoted, it ensure that the second fixed cone, first fixed cone, the effective grasping of first hangnail and the second hangnail to ground, grasp better performances, improve the earth-catching property of slope protection net, effectively avoid the slope protection net topple over or it is mobile, it is effectively guaranteed the service life of slope protection net.

Description

A kind of hydraulic engineering slope protection net with grasping function
Technical field
The present invention relates to hydraulic engineering technical field, specially a kind of hydraulic engineering slope protection net with grasping function.
Background technology
Hydraulic engineering is the surface water and groundwater for controlling and allocating nature, reaches and removes the evil emerging sharp purpose and build Engineering, also referred to as Hydraulic Projects, water is human being's production and essential precious resources of living, but the state of its naturally occurring is simultaneously Not in full conformity with the needs of the mankind, hydraulic engineering is only built, current could be controlled, prevent flood, water-filling amount of going forward side by side Regulation and distribution, to meet the needs of people's lives and production to water resource, hydraulic engineering needs to build dam, dike, spillway, water The different types of hydraulic structure such as lock, water inlet, channel, log chute, fish pass, to realize its target.
Slope protection net is made up of high-quality mild steel wire, and this web frame is firm, and surface is flat, be widely used for farm buildings, Hydraulic engineering and building trade, for reinforcing, protection etc., hydraulic engineering with slope protection net in use easily by water impact, Existing most of slope protection net grasping poor-performings, are easily toppling over after by water impact, are having a strong impact on slope protection net Service life, it is unfavorable for being normally carried out for hydraulic engineering.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, the invention provides a kind of hydraulic engineering slope protection net with grasping function, solution The problem of existing most of slope protection nets of having determined grasp poor-performing.
(2) technical scheme
To achieve the above object, the present invention provides following technical scheme:A kind of hydraulic engineering shield with grasping function Slope net, including slope protection net body, the left and right sides of the slope protection net body have been fixedly connected with fixed plate, the slope protection net sheet The bottom surface of body is fixedly connected with the first fixed cone being spaced substantially equidistant, and the inside of each fixed plate offers two relatively The first cavity claimed, the first chute is each offered on the inner roof wall of first cavity, each first cavity is interior Portion is placed with the movable block being adapted with the first cavity, and the upper surface of each movable block has been fixedly connected with to be slided with first The first sliding block that groove is adapted, and the first sliding block is connected in the first chute, the inner side that two first cavitys are located remotely from each other Fixation is inlaid with first sleeve on wall, and the inside of each first sleeve is placed with pushing away of being adapted with first sleeve Bar, the one side that two push rods one side close to each other is located remotely from each other with two movable blocks respectively are fixedly connected, two The first spring is fixedly connected with the middle part of the movable block one side close to each other, each first spring is away from movable block Madial wall of the one end with the first cavity be fixedly connected.
The bottom surface of each fixed plate has been fixedly connected with fixed column, is opened in the inner bottom wall of each first cavity Provided with groove, the upper surface of each fixed column offers the second cavity, and the first cavity passes through groove and the second cavity It is connected, the second chute is offered in the inner bottom wall of each second cavity, the inside of each second cavity is put Cylindrical connecting rod is equipped with, the bottom surface of each connecting rod is fixedly connected with second be adapted with the second chute and slided Block, and the second sliding block is connected in the second chute, the top of each connecting rod through groove and extends to the first cavity Inside, and bottom surface of the upper surface of two connecting rods respectively with two movable blocks is fixedly connected.
Fixation is inlaid with the second sleeve pipe on the madial wall that two second cavitys are located remotely from each other, each described second set The inside of pipe is placed with the second fixed cone being adapted with the second sleeve pipe, two second fixed cones side close to each other The one side that face is located remotely from each other with two connecting rods respectively is fixedly connected, each side of the connecting rod away from the second fixed cone Face is fixedly connected with the second spring being spaced substantially equidistant, and each one end of the second spring away from connecting rod is empty with second The madial wall of chamber is fixedly connected.
Preferably, one side of the push rod away from fixed plate is fixedly connected with limited block, the vertical length of the limited block Angle value is more than the diameter value of first sleeve.
Preferably, the horizontal length value of the groove is equal to the horizontal length value of the second cavity, the width value of the groove More than the diameter value of connecting rod.
Preferably, the bottom surface of the fixed column is fixedly connected with the second hangnail, and second fixed cone is away from fixed column One side is fixedly connected with the first hangnail.
Preferably, the horizontal length value of the push rod is more than the half of the first cavity horizontal length value, and described second fixes The horizontal length value of cone is more than the half of the second cavity horizontal length value.
Preferably, the quantity of first fixed cone is at least three, and the quantity of the second spring is at least six.
(3) beneficial effect
The invention provides a kind of hydraulic engineering slope protection net with grasping function, possesses following beneficial effect:
(1) should be with the hydraulic engineering slope protection net of grasping function, can be to slope protection net sheet by being provided with fixed plate Body carries out stabilization, by setting the first chute, the first sliding block and movable block in the inside of fixed plate, is slided in the first chute and first Under the collective effect of block, using the elastic force of the first spring, push rod can promote to movable block, can drive the second fixed cone Move, the second fixed cone can reasonably be promoted in the inside of the second cavity, ensure that the second fixed cone, first are fixed Cone, the effective grasping of the first hangnail and the second hangnail to ground, better performances are grasped, the earth-catching property of slope protection net is improved, has Effect avoid the slope protection net topple over or it is mobile, be effectively guaranteed the service life of slope protection net.
(2) should be with the hydraulic engineering slope protection net for grasping function, by setting connecting rod, second in the inside of fixed column Chute and the second sliding block,, can using the elastic force of second spring under the collective effect of push rod, the second chute and the second sliding block The second fixed cone is moved as needed, can effectively strengthen the grasping force of slope protection net body, avoid slope protection net body from existing Topple over during by water impact, grasping performance is good, is advantageous to being normally carried out for hydraulic engineering.
Brief description of the drawings
Fig. 1 is fixed plate front view of the present invention;
Fig. 2 is the profile of fixed plate front view of the present invention.
In figure:1 slope protection net body, 2 first fixed cones, 3 fixed plates, 4 push rods, 5 limited blocks, 6 fixed columns, 7 second are fixed Cone, 8 first hangnails, 9 second hangnails, 10 first sleeves, 11 first chutes, 12 first sliding blocks, 13 first springs, 14 first skies Chamber, 15 grooves, 16 movable blocks, 17 connecting rods, 18 second cavitys, 19 second springs, 20 second chutes, 21 second sleeve pipes, 22 Two sliding blocks.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme:A kind of hydraulic engineering bank protection with grasping function Net, including slope protection net body 1, the left and right sides of slope protection net body 1 have been fixedly connected with fixed plate 3, can be to slope protection net sheet Body 1 carries out stabilization, and the bottom surface of slope protection net body 1 is fixedly connected with the first fixed cone 2 being spaced substantially equidistant, the first fixed cone 2 Quantity is at least three, and the quantity of second spring 19 is at least six, grasps better performances, improves the adherence properties of slope protection net Can, effectively avoid the slope protection net topple over or it is mobile, be effectively guaranteed the service life of slope protection net, each fixed plate 3 Inside offer two the first symmetrical cavitys 14, offer the first chute on the inner roof wall of each first cavity 14 11, the inside of each first cavity 14 is placed with the movable block 16 being adapted with the first cavity 14, each movable block 16 it is upper Surface is fixedly connected with the first sliding block 12 being adapted with the first chute 11, and the first sliding block 12 is connected to the first chute 11 Interior, under the collective effect of the first chute 11 and the first sliding block 12, using the elastic force of the first spring 13, push rod 4 can be to activity Block 16 is promoted, and the second fixed cone 7 can be driven to be moved in the inside of the second cavity 18, the second fixed cone 7 can be carried out It is rational to promote, it ensure that the second fixed cone 7, the first fixed cone 2, the first hangnail 8 and the second hangnail 9 effectively grabbing to ground Hold, grasp better performances, improve the earth-catching property of slope protection net, effectively avoid the slope protection net topple over or it is mobile, effectively The service life that ensure that slope protection net, fixation is inlaid with first sleeve on the madial wall that two the first cavitys 14 are located remotely from each other 10, the inside of each first sleeve 10 is placed with the push rod 4 being adapted with first sleeve 10, and the horizontal length value of push rod 4 is big In the half of the horizontal length value of the first cavity 14, effective promotion of the push rod 4 to movable block 16, the water of the second fixed cone 7 ensure that Flat length value is more than the half of the horizontal length value of the second cavity 18, and the second fixed cone 7 can be made to take in completely in fixed column 6, pushed away One side of the bar 4 away from fixed plate 3 is fixedly connected with limited block 5, and the vertical length value of limited block 5 is more than the straight of first sleeve 10 Footpath is worth, and push rod 4 can be carried out spacing, and two push rods 4 one side close to each other is located remotely from each other with two movable blocks 16 respectively One side be fixedly connected, be fixedly connected with the first spring 13 in the middle part of two 16 one sides close to each other of movable block, each Madial wall of first one end of spring 13 away from movable block 16 with the first cavity 14 is fixedly connected, in the effect of the first spring 13 Under, push rod 4 drives the second fixed cone 7 to be moved in the inside of the second cavity 18, and the second fixed cone 7 reasonably can be pushed away It is dynamic, it ensure that the effective grasping of the second fixed cone 7, the first fixed cone 2, the first hangnail 8 and the second hangnail 9 to ground, gripping properties The earth-catching property of slope protection net preferably can be improved, effectively avoid the slope protection net topple over or it is mobile, be effectively guaranteed shield The service life of slope net.
The bottom surface of each fixed plate 3 has been fixedly connected with fixed column 6, and the bottom surface of fixed column 6 is fixedly connected with the second hangnail 9, the second one side of the fixed cone 7 away from fixed column 6 is fixedly connected with the first hangnail 8, in the inner bottom wall of each first cavity 14 Groove 15 is offered, the horizontal length value of groove 15 is equal to the horizontal length value of the second cavity 18, and the width value of groove 15 is big In the diameter value of connecting rod 17, it is easy to connecting rod 17 flexibly to be moved in the inside of groove 15, the upper surface of each fixed column 6 is opened Provided with the second cavity 18, and the first cavity 14 is connected by groove 15 with the second cavity 18, the interior bottom of each second cavity 18 The second chute 20 is offered on wall, the inside of each second cavity 18 is placed with cylindrical connecting rod 17, Mei Gelian The bottom surface of extension bar 17 is fixedly connected with the second sliding block 22 being adapted with the second chute 20, and the second sliding block 22 is connected to second In chute 20, the top of each connecting rod 17 through groove 15 and extends to the inside of the first cavity 14, and two connecting rods Bottom surface of 17 upper surface respectively with two movable blocks 16 is fixedly connected, and is easy to movable block 16 to drive connecting rod 17 to move.
Fixation is inlaid with the second sleeve pipe 21, each second sleeve pipe 21 on the madial wall that two the second cavitys 18 are located remotely from each other Inside be placed with the second fixed cone 7 being adapted with the second sleeve pipe 21, two the second fixed cones 7 one side close to each other The one side being located remotely from each other respectively with two connecting rods 17 is fixedly connected, side of each connecting rod 17 away from the second fixed cone 7 Face is fixedly connected with the second spring 19 being spaced substantially equidistant, and each one end of second spring 19 away from connecting rod 17 is with second The madial wall of cavity 18 is fixedly connected, and using the elastic force of second spring 19, the second fixed cone 7 can be moved as needed It is dynamic, it can effectively strengthen the grasping force of slope protection net body 1, avoid slope protection net body 1 from toppling over when by water impact, grasp Performance is good, is advantageous to being normally carried out for hydraulic engineering.
Operation principle:Push rod 4 is internally promoted, the second fixed cone 7 is taken in the second sleeve pipe 21, by two fixed columns 6 In the second hangnail 9 insertion slope, push rod 4 is now pulled, is slided in the first chute 11, the first sliding block 12, the second chute 20 and second , can be by the second fixed cone 7 and the first hangnail using the first spring 13 and the elastic force of second spring 19 under the collective effect of block 22 8 release, so as to reach the grasping to soil, avoid the slope protection net topple over and it is mobile, grasping performance is good.
In summary, should be with the hydraulic engineering slope protection net of grasping function, can be right by being provided with fixed plate 3 Slope protection net body 1 carries out stabilization, by setting the first chute 11, the first sliding block 12 and movable block 16 in the inside of fixed plate 3, Under the collective effect of first chute 11 and the first sliding block 12, using the elastic force of the first spring 13, push rod 4 can enter to movable block 16 Row is promoted, and the second fixed cone 7 can be driven to be moved in the inside of the second cavity 18, the second fixed cone 7 can be carried out reasonably Promote, ensure that the effective grasping of the second fixed cone 7, the first fixed cone 2, the first hangnail 8 and the second hangnail 9 to ground, grasp Better performances, improve the earth-catching property of slope protection net, effectively avoid the slope protection net topple over or it is mobile, be effectively guaranteed The service life of slope protection net, by setting connecting rod 17, the second chute 20 and the second sliding block 22 in the inside of fixed column 6, pushing away , can be as needed to using the elastic force of second spring 19 under the collective effect of bar 4, the second chute 20 and the second sliding block 22 Two fixed cones 7 move, and can effectively strengthen the grasping force of slope protection net body 1, avoid slope protection net body 1 by water impact When topple over, grasping performance it is good, be advantageous to being normally carried out for hydraulic engineering.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of hydraulic engineering slope protection net with grasping function, including slope protection net body (1), it is characterised in that:The shield The left and right sides of slope net body (1) have been fixedly connected with fixed plate (3), and the bottom surface of the slope protection net body (1) is fixedly connected There is the first fixed cone (2) being spaced substantially equidistant, the inside of each fixed plate (3) offers two the first symmetrical skies Chamber (14), the first chute (11) is each offered on the inner roof wall of first cavity (14), each first cavity (14) inside is placed with the movable block (16) being adapted with the first cavity (14), the upper surface of each movable block (16) The first sliding block (12) being adapted with the first chute (11) is fixedly connected with, and the first sliding block (12) is connected to the first chute (11) in, fixation is inlaid with first sleeve (10), Mei Gesuo on the madial wall that two first cavitys (14) are located remotely from each other The inside for stating first sleeve (10) is placed with the push rod (4) being adapted with first sleeve (10), and two push rods (4) are mutual The one side that close one side is located remotely from each other with two movable blocks (16) respectively is fixedly connected, two movable block (16) phases The first spring (13) mutually is fixedly connected with the middle part of one side, each first spring (13) is away from movable block (16) Madial wall of the one end with the first cavity (14) be fixedly connected;
The bottom surface of each fixed plate (3) has been fixedly connected with fixed column (6), the inner bottom wall of each first cavity (14) On offer groove (15), the upper surface of each fixed column (6) offers the second cavity (18), and the first cavity (14) it is connected by groove (15) with the second cavity (18), the is offered in the inner bottom wall of each second cavity (18) Two chutes (20), the inside of each second cavity (18) are placed with cylindrical connecting rod (17), each company The bottom surface of extension bar (17) is fixedly connected with the second sliding block (22) being adapted with the second chute (20), and the second sliding block (22) blocks It is connected in the second chute (20), the top of each connecting rod (17) through groove (15) and extends to the first cavity (14) Inside, and bottom surface of the upper surface of two connecting rods (17) respectively with two movable blocks (16) is fixedly connected;
Fixation is inlaid with the second sleeve pipe (21) on the madial wall that two second cavitys (18) are located remotely from each other, and each described the The inside of two sleeve pipes (21) is placed with the second fixed cone (7) being adapted with the second sleeve pipe (21), and two described second are fixed The one side that cone (7) one side close to each other is located remotely from each other with two connecting rods (17) respectively is fixedly connected, each company One side of the extension bar (17) away from the second fixed cone (7) is fixedly connected with the second spring (19) being spaced substantially equidistant, Mei Gesuo Madial wall of the one end of second spring (19) away from connecting rod (17) with the second cavity (18) is stated to be fixedly connected.
A kind of 2. hydraulic engineering slope protection net with grasping function according to claim 1, it is characterised in that:It is described to push away One side of the bar (4) away from fixed plate (3) is fixedly connected with limited block (5), and the vertical length value of the limited block (5) is more than the The diameter value of sleeve (10).
A kind of 3. hydraulic engineering slope protection net with grasping function according to claim 1, it is characterised in that:It is described logical The horizontal length value of groove (15) is equal to the horizontal length value of the second cavity (18), and the width value of the groove (15) is more than connecting rod (17) diameter value.
A kind of 4. hydraulic engineering slope protection net with grasping function according to claim 1, it is characterised in that:It is described solid The bottom surface of fixed column (6) is fixedly connected with the second hangnail (9), and one side of second fixed cone (7) away from fixed column (6) is fixed It is connected with the first hangnail (8).
A kind of 5. hydraulic engineering slope protection net with grasping function according to claim 1, it is characterised in that:It is described to push away The horizontal length value of bar (4) is more than the half of the first cavity (14) horizontal length value, the horizontal length of second fixed cone (7) Half of the value more than the second cavity (18) horizontal length value.
A kind of 6. hydraulic engineering slope protection net with grasping function according to claim 1, it is characterised in that:Described The quantity of one fixed cone (2) is at least three, and the quantity of the second spring (19) is at least six.
CN201711126126.3A 2017-11-15 2017-11-15 A kind of hydraulic engineering slope protection net with grasping function Withdrawn CN107816012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711126126.3A CN107816012A (en) 2017-11-15 2017-11-15 A kind of hydraulic engineering slope protection net with grasping function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711126126.3A CN107816012A (en) 2017-11-15 2017-11-15 A kind of hydraulic engineering slope protection net with grasping function

Publications (1)

Publication Number Publication Date
CN107816012A true CN107816012A (en) 2018-03-20

Family

ID=61609262

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711126126.3A Withdrawn CN107816012A (en) 2017-11-15 2017-11-15 A kind of hydraulic engineering slope protection net with grasping function

Country Status (1)

Country Link
CN (1) CN107816012A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109750634A (en) * 2019-01-31 2019-05-14 黑龙江省翔波新材料新技术应用开发有限公司 A kind of slope protection net mechanism for hydraulic engineering
CN112392005A (en) * 2020-12-07 2021-02-23 王世博 Water conservancy slope protection net fixing device
CN115419018A (en) * 2022-10-11 2022-12-02 广东吴川建筑安装工程有限公司 Ecological river course barricade protection machanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109750634A (en) * 2019-01-31 2019-05-14 黑龙江省翔波新材料新技术应用开发有限公司 A kind of slope protection net mechanism for hydraulic engineering
CN112392005A (en) * 2020-12-07 2021-02-23 王世博 Water conservancy slope protection net fixing device
CN115419018A (en) * 2022-10-11 2022-12-02 广东吴川建筑安装工程有限公司 Ecological river course barricade protection machanism

Similar Documents

Publication Publication Date Title
CN207567726U (en) A kind of hydraulic engineering slope protection net with grasping
CN107816012A (en) A kind of hydraulic engineering slope protection net with grasping function
CN208501642U (en) A kind of water conservancy irrigation water channel with dredging function
CN106964834A (en) A kind of bridge construction Steel Tubes For Bridge Application cutter device for being easy to adjust
CN206070542U (en) A kind of new stone blocking net Cable Structure for avalanche preventing and treating
CN211898446U (en) Hydraulic engineering side slope construction protective structure
CN203559398U (en) Simple water gate
CN108589630A (en) A kind of hydraulic engineering construction baffle device for water
CN212835477U (en) Collapsible loess foundation structure
CN209741767U (en) Do benefit to gardens ditch structure of drainage
CN216839328U (en) High-standard farmland surface protection structure based on ecological transformation
CN208869993U (en) A kind of hydraulic engineering protective net reinforcing rock-steady structure
CN208700637U (en) One kind is for the neustic processing unit of southern paddy field flowing water
CN215671466U (en) Protector for hydraulic engineering
CN207143887U (en) It is a kind of to deter plug trash rack for hydraulic engineering
CN207124983U (en) High viability ecological planting device for hillside fields greening
CN205791415U (en) Chute-type railway groove cable bearer
CN214940010U (en) Wind-proof sand-fixing device for desert control
CN218911270U (en) Hydraulic engineering slope protection net
CN205576846U (en) Arc revetment block
CN220414125U (en) Water conservancy ecological slope protection structure
CN217937534U (en) Drawing device
CN204492890U (en) Warpage preventing draining blind pipe
CN202809647U (en) Long-short-pile pile plate retaining wall
CN213233596U (en) Agricultural water utilization channel dredging device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20180320