CN112030873A - Soil retaining device for hydraulic engineering and using method thereof - Google Patents
Soil retaining device for hydraulic engineering and using method thereof Download PDFInfo
- Publication number
- CN112030873A CN112030873A CN202010711565.6A CN202010711565A CN112030873A CN 112030873 A CN112030873 A CN 112030873A CN 202010711565 A CN202010711565 A CN 202010711565A CN 112030873 A CN112030873 A CN 112030873A
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- Prior art keywords
- gauze
- plate
- hydraulic engineering
- retaining device
- screw rod
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- 239000002689 soil Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
Abstract
The invention belongs to the technical field of hydraulic engineering, in particular to a retaining device for hydraulic engineering and a using method thereof, wherein the retaining device comprises a mounting plate and a placing box fixed on the surface of one end of the mounting plate, a servo motor is fixedly arranged on the outer side of one end, close to the placing box, of the mounting plate, and the output end of the servo motor penetrates through the mounting plate and the surface of the placing box; place the roller bearing in the middle of two mounting panels, the outer wall winding of roller bearing has the gauze, when servo motor rotated, the drive connecting axle rotates, and then the drive lead screw rotates, further drive fixed plate transmission, this moment, two roller bearing transmissions, and then tile the gauze to the position that needs to keep off the soil, the staff is according to laying length afterwards, the selectivity cuts the broken strip, and then laying of accomplishing the gauze, the staff places gauze department to the gusset plate afterwards, align through-hole A and through-hole B to the inflation screw, accomplish placing of gauze, bring the facility for the staff.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a soil retaining device for hydraulic engineering and a using method thereof.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Also known as water engineering. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Hydraulic engineering needs to build various types of hydraulic buildings such as dams, dikes, spillways, water gates, water inlets, channels, transition troughs, rafts, fishways and the like so as to achieve the aims.
Current hydraulic engineering when the construction, generally adopts the fender soil net to keep off the soil operation, but, keeps off the soil net when laying, needs the operation of many staff, wastes time and energy, and also does not make things convenient for the staff to cut according to the length of laying in addition, brings inconvenience for the staff.
In order to solve the problems, the application provides a retaining device for hydraulic engineering and a using method thereof.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a soil retaining device for hydraulic engineering and a using method thereof, and the soil retaining device has the characteristic of convenience in installation.
In order to achieve the purpose, the invention provides the following technical scheme: a retaining device for hydraulic engineering comprises a mounting plate and a placing box fixed on the surface of one end of the mounting plate, wherein a servo motor is fixedly arranged on the outer side of one end, close to the placing box, of the mounting plate, and the output end of the servo motor penetrates through the surfaces of the mounting plate and the placing box and is fixedly connected with a connecting shaft arranged in the placing box;
two groups of sliding rails are fixedly arranged on the upper surface of the mounting plate, a screw rod is arranged between the two groups of sliding rails, one end of the screw rod is connected with the connecting shaft, and the other end of the screw rod is connected with a baffle arranged on the upper surface of the mounting plate;
a sliding block is connected to the sliding rail in a sliding mode, a fixing plate is fixedly arranged at one end, away from the sliding rail, of the sliding block, a bearing sleeve is fixedly arranged on the bottom surface of the fixing plate, and the bearing sleeve is sleeved on the outer side wall of the screw rod;
the utility model discloses a box of placing, including placing the box, the mounting panel is kept away from the box, place the box and keep away from the one end of mounting panel is seted up flutedly, and the block even has the limiting plate in this recess, just the limiting plate is kept away from the one end of placing the box is rotated and is connected with the bearing, the bearing is kept away from the one end of limiting plate is rotated and is connected with the roller bearing, just the.
Preferably, a rotating shaft is arranged between the screw rod and the baffle plate, and the screw rod and the baffle plate are rotatably connected through the rotating shaft.
Preferably, the number of the mounting plates is two, the two mounting plates are symmetrically distributed along the central line of the roller, and the roller is rotatably connected with the limiting plate through the bearing.
Preferably, the roller, the bearing and the limiting plate form a group of two supporting assemblies, one group of the supporting assemblies is fixed on the two placing boxes, and the other group of the supporting assemblies is fixed on the two fixing plates.
Preferably, the servo motor is in transmission connection with the screw rod through the connecting shaft.
Preferably, the gauze comprises a connecting plate and breaking strips, the connecting plate is positioned at one end of the gauze and is fixedly connected with the gauze, a through hole A is formed in the surface of the connecting plate, a plurality of breaking strips are formed in the surface of the gauze, and through holes B are formed in the upper end and the bottom end of the gauze.
The soil retaining device for the hydraulic engineering preferably further comprises a reinforcing plate and an expansion screw fixed on the surface of the reinforcing plate, wherein one side of the reinforcing plate is fixedly connected with a hinge shaft A, the other side of the reinforcing plate is fixedly connected with a hinge shaft B, and the hinge shaft A is matched with the hinge shaft B.
Preferably, in the soil retaining device for hydraulic engineering of the present invention, the reinforcing plate, the expansion screw, the hinge shaft a, and the hinge shaft B are all stainless steel members.
A use method of a soil retaining device for hydraulic engineering comprises the following steps:
s1, presetting length, namely presetting the length of the slide rail and the screw rod by a worker according to the length of the laying position;
s2, installing the apparatus, namely installing two groups of rollers on two groups of placing boxes and two groups of fixing plates according to the construction environment;
s3, winding a gauze on the outer wall of the preset working-rolling shaft, driving the connecting shaft to rotate when the servo motor rotates, further driving the screw rod to rotate, further driving the fixing plate to transmit, and driving the two rolling shafts to transmit, so that the gauze is tiled on a part needing soil retaining;
s4, determining the length, namely, selectively cutting the broken strips by workers according to the laying length so as to finish the laying of the gauze;
s5, installing the reinforcement plate at the position of the gauze by a worker, aligning the expansion screw with the through hole A and the through hole B, and finishing the placement of the gauze.
Compared with the prior art, the invention has the beneficial effects that: the staff places the device to the workplace, place the roller bearing in the middle of two mounting panels, the outer wall winding of roller bearing has the gauze, when servo motor rotated this moment, the drive connecting axle rotates, and then the drive lead screw rotates, further drive fixed plate transmission, at this moment, two roller bearing transmissions, and then on need the position of retaining soil to the gauze tiling, the staff is according to laying length afterwards, the selectivity cuts the broken strip, and then the laying of completion gauze, the staff places gauze department to the gusset plate afterwards, align through-hole A and through-hole B to the inflation screw, accomplish the placing of gauze, bring the facility for the staff.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the mounting plate structure of the present invention;
FIG. 3 is a schematic view of a roller structure according to the present invention;
FIG. 4 is a schematic view of a screen structure according to the present invention;
FIG. 5 is a schematic diagram of a reinforced plate structure according to the present invention.
In the figure:
10. a servo motor; 11. mounting a plate; 111. a slide rail; 12. a connecting shaft; 121. a screw rod; 13. a fixing plate; 131. a slider; 14. a baffle plate; 141. a rotating shaft; 15. placing the box;
20. a roller; 21. a bearing; 22. a limiting plate; 23. a screen; 231. a connecting plate; 232. a through hole A; 233. breaking the strip; 234. a through hole B;
30. a reinforcing plate; 31. an expansion screw; 32. a hinge shaft A; 33. a hinge shaft B.
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 1
As shown in fig. 1, 2, 3, 4 and 5;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the mounting plate structure of the present invention;
FIG. 3 is a schematic view of a roller structure according to the present invention;
FIG. 4 is a schematic view of a screen structure according to the present invention;
FIG. 5 is a schematic diagram of a reinforced plate structure according to the present invention.
A retaining device for hydraulic engineering comprises a mounting plate 11 and a placing box 15 fixed on the surface of one end of the mounting plate 11, wherein a servo motor 10 is fixedly arranged on the outer side of one end, close to the placing box 15, of the mounting plate 11, and the output end of the servo motor 10 penetrates through the surfaces of the mounting plate 11 and the placing box 15 and is fixedly connected with a connecting shaft 12 arranged inside the placing box 15;
two groups of sliding rails 111 are fixedly arranged on the upper surface of the mounting plate 11, a screw rod 121 is arranged between the two groups of sliding rails 111, one end of the screw rod 121 is connected with the connecting shaft 12, and the other end of the screw rod 121 is connected with a baffle 14 arranged on the upper surface of the mounting plate 11;
a sliding block 131 is connected to the sliding rail 111 in a sliding manner, a fixed plate 13 is fixedly arranged at one end, away from the sliding rail 111, of the sliding block 131, and a bearing sleeve is fixedly arranged on the bottom surface of the fixed plate 13 and sleeved on the outer side wall of the screw rod 121;
the one end of placing box 15 and keeping away from mounting panel 11 has seted up the recess, and the block even has limiting plate 22 in this recess, and limiting plate 22 keeps away from the one end of placing box 15 and rotates and be connected with bearing 21, and bearing 21 keeps away from the one end of limiting plate 22 and rotates and be connected with roller 20, and the lateral wall winding of roller 20 has gauze 23.
In this embodiment: the staff places the device to the workplace, place roller 20 in the middle of two mounting panels 11, the outer wall winding of roller 20 has gauze 23, when servo motor 10 rotated this moment, drive connecting axle 12 rotated, and then drive lead screw 121 rotates, further drive fixed plate 13 transmission, this moment, two roller 20 transmissions, and then tile gauze 23 on the position that needs to keep off soil, the staff is according to laying length afterwards, the selectivity cuts broken strip 233, and then to accomplishing the laying of gauze 23, the staff places gauze 23 department to gusset plate 30 subsequently, align expansion screw 31 at through-hole A232 and through-hole B234, accomplish the placing of gauze 23, bring the facility for the staff.
As shown in fig. 2;
fig. 2 is a schematic view of the structure of the mounting plate of the present invention.
In an alternative embodiment, a rotating shaft 141 is provided between the screw rod 121 and the baffle 14, and the screw rod 121 and the baffle 14 are rotatably connected through the rotating shaft 141.
In this embodiment: when the servo motor 10 rotates, the connecting shaft 12 is driven to rotate, and further the screw rod 121 is driven to rotate, and further the fixing plate 13 is driven to transmit.
As shown in fig. 1 and 3;
FIG. 1 is a schematic structural view of the present invention;
fig. 3 is a schematic view of a roller structure according to the present invention.
In an alternative embodiment, the number of the mounting plates 11 is two, the two mounting plates 11 are symmetrically distributed along the central line of the roller 20, and the roller 20 and the limiting plate 22 are rotatably connected through the bearing 21.
In this embodiment: the staff places the device to the workplace, places roller 20 in the middle of two mounting panels 11, and the outer wall winding of roller 20 has gauze 23, and when servo motor 10 rotated this moment, drive connecting axle 12 rotated, and then drive lead screw 121 rotated, and further drive fixed plate 13 transmission, and at this moment, two roller 20 transmissions, and then tile gauze 23 on the position that needs the fender soil.
As shown in fig. 1;
FIG. 1 is a schematic structural diagram of the present invention.
In an alternative embodiment, the rollers 20, the bearings 21 and the limit plates 22 constitute a set of two support assemblies, one of which is fixed to the two placing cases 15 and the other of which is fixed to the two fixing plates 13.
In this embodiment: the staff places the device to the workplace, places roller 20 in the middle of two mounting panels 11, and the outer wall winding of roller 20 has gauze 23, and when servo motor 10 rotated this moment, drive connecting axle 12 rotated, and then drive lead screw 121 rotated, and further drive fixed plate 13 transmission, and at this moment, two roller 20 transmissions, and then tile gauze 23 on the position that needs the fender soil.
In an alternative embodiment, the servomotor 10 and the screw 121 are drivingly connected by the connecting shaft 12.
As shown in fig. 4;
fig. 4 is a schematic view of the structure of the gauze of the present invention.
In an alternative embodiment, the screen 23 includes a connection plate 231 and breaking strips 233, the connection plate 231 is located at one end of the screen 23 and is fixedly connected with the screen 23, through holes a232 are formed in the surface of the connection plate 231, a plurality of breaking strips 233 are formed in the surface of the screen 23, and through holes B234 are formed in the upper end and the bottom end of the screen 23.
In this embodiment: after the worker tiles the gauze 23 to the position where soil is to be retained, the worker selectively cuts the breaking strips 233 according to the laying length, the gauze 23 is laid, the worker places the reinforcing plate 30 to the gauze 23, the expansion screws 31 are aligned to the through holes A232 and the through holes B234, the gauze 23 is placed, and convenience is brought to the worker.
As shown in fig. 5;
FIG. 5 is a schematic diagram of a reinforced plate structure according to the present invention.
In an alternative embodiment, the fixing device further comprises a reinforcing plate 30 and an expansion screw 31 fixed on the surface of the reinforcing plate 30, wherein one side of the reinforcing plate 30 is fixedly connected with a hinge shaft A32, and the other side of the reinforcing plate 30 is fixedly connected with a hinge shaft B33, and the hinge shaft A32 is matched with the hinge shaft B33.
In this embodiment: staff can make things convenient for the staff to use according to the quantity and the length of actual demand selectivity use gusset plate 30.
As shown in fig. 5;
FIG. 5 is a schematic diagram of a reinforced plate structure according to the present invention.
In an alternative embodiment, the gusset plate 30, the expansion screw 31, the hinge shaft A32, and the hinge shaft B33 are all stainless steel members.
In this embodiment: lay gauze 23 flat to the position that needs the fender soil, staff afterwards according to laying length, selectively cuts broken strip 233, and then to accomplish the laying of gauze 23, and the staff places reinforcing plate 30 gauze 23 department afterwards, aims at through-hole A232 and through-hole B234 expansion screw 31, accomplishes the placing of gauze 23, brings the facility for the staff.
A use method of a soil retaining device for hydraulic engineering comprises the following steps:
s1, presetting length, namely presetting the length of the slide rail and the screw rod by a worker according to the length of the laying position;
s2, installing the apparatus, namely installing two groups of rollers on two groups of placing boxes and two groups of fixing plates according to the construction environment;
s3, winding a gauze on the outer wall of the preset working-rolling shaft, driving the connecting shaft to rotate when the servo motor rotates, further driving the screw rod to rotate, further driving the fixing plate to transmit, and driving the two rolling shafts to transmit, so that the gauze is tiled on a part needing soil retaining;
s4, determining the length, namely, selectively cutting the broken strips by workers according to the laying length so as to finish the laying of the gauze;
s5, installing the reinforcement plate at the position of the gauze by a worker, aligning the expansion screw with the through hole A and the through hole B, and finishing the placement of the gauze.
The working principle and the using process of the invention are as follows: the staff places the device to the workplace, place roller 20 in the middle of two mounting panels 11, the outer wall winding of roller 20 has gauze 23, when servo motor 10 rotated this moment, drive connecting axle 12 rotated, and then drive lead screw 121 rotates, further drive fixed plate 13 transmission, this moment, two roller 20 transmissions, and then tile gauze 23 on the position that needs to keep off soil, the staff is according to laying length afterwards, the selectivity cuts broken strip 233, and then to accomplishing the laying of gauze 23, the staff places gauze 23 department to gusset plate 30 subsequently, align expansion screw 31 at through-hole A232 and through-hole B234, accomplish the placing of gauze 23, bring the facility for the staff.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a hydraulic engineering is with keeping off native device which characterized in that: the servo motor type electric water heater comprises a mounting plate (11) and a placing box (15) fixed on the surface of one end of the mounting plate (11), wherein a servo motor (10) is fixedly arranged on the outer side of one end, close to the placing box (15), of the mounting plate (11), and the output end of the servo motor (10) penetrates through the mounting plate (11) and the surface of the placing box (15) and is fixedly connected with a connecting shaft (12) arranged inside the placing box (15);
two groups of sliding rails (111) are fixedly arranged on the upper surface of the mounting plate (11), a screw rod (121) is arranged between the two groups of sliding rails (111), one end of the screw rod (121) is connected with the connecting shaft (12), and the other end of the screw rod (121) is connected with a baffle (14) arranged on the upper surface of the mounting plate (11);
a sliding block (131) is connected to the sliding rail (111) in a sliding manner, a fixed plate (13) is fixedly arranged at one end, far away from the sliding rail (111), of the sliding block (131), a bearing sleeve is fixedly arranged on the bottom surface of the fixed plate (13), and the bearing sleeve is sleeved on the outer side wall of the screw rod (121);
place box (15) and keep away from the one end of mounting panel (11) is seted up flutedly, and the block even has limiting plate (22) in this recess, just limiting plate (22) are kept away from the one end of placing box (15) is rotated and is connected with bearing (21), bearing (21) are kept away from the one end of limiting plate (22) is rotated and is connected with roller bearing (20), just the lateral wall winding of roller bearing (20) has gauze (23).
2. A retaining device for hydraulic engineering according to claim 1, characterized in that: a rotating shaft (141) is arranged between the screw rod (121) and the baffle (14), and the screw rod (121) and the baffle (14) are rotatably connected through the rotating shaft (141).
3. A retaining device for hydraulic engineering according to claim 1, characterized in that: mounting panel (11) quantity is two, two mounting panel (11) are along the central line symmetric distribution of roller shaft (20), just roller shaft (20) with limiting plate (22) pass through bearing (21) rotate to be connected.
4. A retaining device for hydraulic engineering according to claim 1, characterized in that: the rolling shaft (20), the bearing (21) and the limiting plate (22) form a group of two supporting assemblies, the number of the supporting assemblies is two, one group of the supporting assemblies are fixed on the two placing boxes (15), and the other group of the supporting assemblies are fixed on the two fixing plates (13).
5. A retaining device for hydraulic engineering according to claim 1, characterized in that: the servo motor (10) is in transmission connection with the screw rod (121) through the connecting shaft (12).
6. A retaining device for hydraulic engineering according to claim 1, characterized in that: gauze (23) are including connecting plate (231) and break strip (233), connecting plate (231) are located the one end of gauze (23), and with gauze (23) fixed connection, through-hole A (232) have been seted up on the surface of connecting plate (231), a plurality of has been seted up on the surface of gauze (23) break strip (233), just through-hole B (234) have all been seted up to the upper end and the bottom of gauze (23).
7. A retaining device for hydraulic engineering according to claim 1, characterized in that: the hinge plate is characterized by further comprising a reinforcing plate (30) and an expansion screw (31) fixed on the surface of the reinforcing plate (30), wherein a hinge shaft A (32) is fixedly connected to one side of the reinforcing plate (30), a hinge shaft B (33) is fixedly connected to the other side of the reinforcing plate (30), and the hinge shaft A (32) is matched with the hinge shaft B (33).
8. A retaining device for hydraulic engineering according to claim 7, characterized in that: the reinforcing plate (30), the expansion screw (31), the hinge shaft A (32) and the hinge shaft B (33) are all stainless steel members.
9. A method for using a retaining device for hydraulic engineering according to any one of claims 1 to 8, characterized in that it comprises the following steps:
s1, presetting length, namely presetting the length of the slide rail and the screw rod by a worker according to the length of the laying position;
s2, installing the apparatus, namely installing two groups of rollers on two groups of placing boxes and two groups of fixing plates according to the construction environment;
s3, winding a gauze on the outer wall of the preset working-rolling shaft, driving the connecting shaft to rotate when the servo motor rotates, further driving the screw rod to rotate, further driving the fixing plate to transmit, and driving the two rolling shafts to transmit, so that the gauze is tiled on a part needing soil retaining;
s4, determining the length, namely, selectively cutting the broken strips by workers according to the laying length so as to finish the laying of the gauze;
s5, installing the reinforcement plate at the position of the gauze by a worker, aligning the expansion screw with the through hole A and the through hole B, and finishing the placement of the gauze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711565.6A CN112030873A (en) | 2020-07-22 | 2020-07-22 | Soil retaining device for hydraulic engineering and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711565.6A CN112030873A (en) | 2020-07-22 | 2020-07-22 | Soil retaining device for hydraulic engineering and using method thereof |
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| CN112030873A true CN112030873A (en) | 2020-12-04 |
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| CN202010711565.6A Pending CN112030873A (en) | 2020-07-22 | 2020-07-22 | Soil retaining device for hydraulic engineering and using method thereof |
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| CN209557494U (en) * | 2019-01-16 | 2019-10-29 | 嘉善正通自润滑复合轴承厂 | A kind of auxiliary powder device of the copper sheathing of self-lubricating bearing |
| CN209798667U (en) * | 2019-03-21 | 2019-12-17 | 河北浩川工程咨询有限公司 | Ecological bank protection of hydraulic engineering |
| CN210262929U (en) * | 2019-07-15 | 2020-04-07 | 江苏衡辉工程检测有限公司 | Slope protection net convenient to install and capable of being used for water |
| CN211036865U (en) * | 2019-07-18 | 2020-07-17 | 深圳市水源环保建设有限公司 | Hydraulic engineering is with high-efficient durable flood bank |
| CN211038098U (en) * | 2019-10-15 | 2020-07-17 | 杨安勇 | Road and bridge beam pile reinforcing device |
| CN211037102U (en) * | 2019-11-18 | 2020-07-17 | 常猛 | Hydraulic engineering desilting device |
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