CN112878175A - Pier water flow resistance reducing device - Google Patents
Pier water flow resistance reducing device Download PDFInfo
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- CN112878175A CN112878175A CN202110070066.8A CN202110070066A CN112878175A CN 112878175 A CN112878175 A CN 112878175A CN 202110070066 A CN202110070066 A CN 202110070066A CN 112878175 A CN112878175 A CN 112878175A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000004744 fabric Substances 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims description 50
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of pier drag reduction equipment, in particular to a pier water flow resistance reducing device, wherein a pre-buried assembly is arranged on the back flow side of a pier, and a fixed plate group is used for fixing flow rectification cloth and is rotationally connected with the pre-buried assembly through a supporting rod; the embedded component comprises a plurality of arc groove clamping blocks arranged along the vertical direction and an arc groove supporting block arranged at the lowest part, and the arc groove supporting block is used for supporting the supporting rod; the fixed plate group comprises a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are mutually compressed, one end of the fixed plate group is connected with the supporting rod, and the other end of the fixed plate group is fixedly compressed with the rectification cloth through the first fixed plate and the second fixed plate. The water flow at the bridge pier is provided with the rectifying cloth in the back direction, so that the formation of the water flow vortex at the back of the bridge pier can be disturbed, the negative pressure at the back of the bridge pier is adjusted, and the flexible rectifying cloth is matched with the fixing plate group to swing at the arc-shaped opening part of the arc groove clamping block and adapt to the flow direction of the water flow, so that the flowing water resistance of the bridge pier is reduced.
Description
Technical Field
The invention relates to the technical field of pier drag reduction equipment, in particular to a pier flow resistance reducing device.
Background
Millions of bridges spanning rivers and rivers are built at home and abroad, and a plurality of piers are built in water. River and river flow are relatively stable, and the direction of the water flow impact load borne by the bridge piers is relatively fixed. The pier usually adopts circular or quasi-circular section, and the water flow resistance coefficient is great. When the flow rate and the water blocking area are large, the bridge pier can be subjected to large horizontal thrust, and even the safety of the bridge structure can be endangered. Therefore, measures should be taken to reduce the water resistance coefficient of the bridge pier as much as possible so as to make the bridge structure safe. For the pier with a specific cross section, the water resistance coefficient of the pier is usually reduced by adding a fixed rectifying plate and a fixed rectifying cover at present.
The posture of the resistance reduction measure relative to the bridge pier is not changed, and the water flow direction is not strictly fixed due to water level change or river bed scouring and is possibly changed within a certain range. Therefore, the traditional bridge pier rectifying plate and the traditional bridge pier rectifying cover cannot automatically adapt to the water flow direction, and the optimal resistance reduction effect cannot be achieved. When the water flow direction is greatly inclined, the resistance coefficient can be even increased, and the flood fighting safety of the bridge structure is threatened. In addition, the fairing device has the defects of troublesome processing, complex installation and higher cost; once installed, it is difficult to adjust and replace. Therefore, a pier damping device with high flexibility, strong practicability and good economical efficiency needs to be researched.
In view of the above problems, the present designer has been actively making research and innovation based on the practical experience and professional knowledge that is abundant for many years in the engineering application of such products, in order to create a pier water flow resistance reducing device, which is more practical.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the pier water flow resistance reducing device can effectively reduce the water flow resistance borne by the pier, can change the self posture in a self-adaptive manner, and is convenient to install and adjust.
In order to achieve the purpose, the invention adopts the technical scheme that: a pier water flow resistance reducing device, comprising: the bridge pier comprises a pre-buried assembly, supporting rods, a fixing plate group and rectification cloth, wherein the pre-buried assembly is arranged on the back flow side of the bridge pier, and the fixing plate group is used for fixing the rectification cloth and is in rotary connection with the pre-buried assembly through the supporting rods;
the embedded component comprises a plurality of arc groove clamping blocks arranged along the vertical direction and an arc groove supporting block arranged at the lowest part, and the arc groove supporting block is used for supporting the supporting rod;
the fixing plate group comprises a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are mutually compressed, one end of the fixing plate group is connected with the supporting rod, and the other end of the fixing plate group presses and fixes the rectifying cloth through the first fixing plate and the second fixing plate.
Further, the arc groove clamp splice includes stiff end and exposed core, the stiff end is pre-buried on the pier, the exposed core has been link up along vertical direction and has been seted up the through-hole, the through-hole with the bracing piece suits, just the through-hole is kept away from the one end of stiff end sets up to the arc opening, just arc open-ended circular arc angle is less than 180.
Furthermore, the arc groove supporting block comprises the arc groove clamping block and a supporting plate arranged at the bottom end of the arc groove clamping block, and the supporting plate is used for supporting the supporting rod.
Further, the bracing piece sets up to the cylinder structure that both ends link up set up along its length direction on the bracing piece with fixed plate group thickness suited's opening, the bracing piece passes a plurality ofly the arc groove clamp splice sets up, just the open end orientation of bracing piece the arc opening direction sets up.
Furthermore, a plurality of limiting assemblies are arranged in the supporting rod along the vertical direction and fixedly connected with the fixing plate group, a plurality of limiting blocks are arranged at one end, close to the supporting rod, of the fixing plate group and correspond to the limiting assemblies along the vertical direction, and the limiting blocks are symmetrically arranged on two sides of the first fixing plate and the second fixing plate.
Furthermore, the limiting assembly is fixedly connected with the limiting block;
the limiting assembly comprises a first clamping plate and a second clamping plate which are arranged in the vertical direction, the first clamping plate and the second clamping plate respectively press the upper end and the lower end of the limiting block to be close to each other, and the limiting block is pressed and fixed.
Furthermore, first splint with the second splint all sets up to discoid, and correspond fixed plate group has seted up the rectangle notch along its is radial, all seted up the spacing groove on the first splint with the adjacent both ends face of second splint, just the spacing groove with the stopper suits.
Furthermore, the first splint towards the one end of second splint is provided with first spacing post the one end of second splint towards first splint is provided with the first spacing hole that suits of first spacing post.
Further, a compression structure is arranged at one end of the fixing plate group away from the support rod, the compression structure comprises a first pressure groove and a first pressing block which are arranged on the first fixing plate, and a second pressure groove and a second pressing block which are arranged on the second fixing plate, the first pressure groove and the first pressing block are arranged on one side of the first fixing plate facing the second fixing plate, and the second pressure groove and the second pressing block are arranged on one side of the second fixing plate facing the first fixing plate;
the first pressure grooves and the first pressing blocks are arranged in a plurality of vertical directions, and the first pressure grooves and the first pressing blocks are arranged in a staggered mode;
the second pressing groove and the second pressing block are arranged in a plurality along the vertical direction and respectively correspond to the first pressing block and the first pressing groove.
Furthermore, a plurality of second limiting columns are arranged on the first pressing groove and the second pressing groove, and second limiting holes are formed in the first pressing block and the second pressing block corresponding to the second limiting columns;
the second limiting column and the second limiting hole are arranged at two ends of the compression structure in the vertical direction.
The invention has the beneficial effects that: by arranging the rectifying cloth on the water flow back of the pier, the formation of vortexes of the water flow back of the pier can be interfered, and the negative pressure on the back of the pier is adjusted, so that the flowing water resistance on the pier is reduced, and the transverse pulsating force is reduced;
the flexible rectifying cloth can change the shape of the rectifying cloth in a self-adaptive manner in a large range according to the water flow direction, the flexible rectifying cloth is matched with the fixing plate group and can be rotatably connected with the embedded component, the fixing plate group can swing at the arc-shaped opening of the arc-shaped groove clamping block and adapt to the deflection direction of the rectifying cloth, and the water flow resistance can be reduced better;
the rectification cloth can adopt materials with various different thicknesses, materials and water permeability, the shape, the installation structure and other parameters of the rectification cloth are flexible and variable, and the pier water flow resistance reducing device is simple in structure and has higher practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a pier water flow resistance reducing device according to an embodiment of the present invention;
FIG. 2 is an exploded view of the structure of a pier water flow resistance reducing device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 2;
FIG. 4 is a schematic structural diagram of a pressing structure on a second fixing plate according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of the structure at B in FIG. 2;
FIG. 6 is a schematic structural diagram of a position limiting assembly according to an embodiment of the present invention;
FIG. 7 is a schematic view of a first clamping plate according to an embodiment of the present invention;
FIG. 8 is a schematic view of a second cleat constructed in accordance with an embodiment of the invention;
FIG. 9 is a schematic structural diagram of a support rod according to an embodiment of the present invention;
FIG. 10 is an enlarged view of a portion of the structure at C in FIG. 1;
FIG. 11 is a schematic view of a connection structure of a limiting component and a fixing plate set in an embodiment of the invention;
FIG. 12 is a schematic structural view of an arc groove clamp of an embodiment of the present invention;
FIG. 13 is a schematic structural diagram of an arc groove support block according to an embodiment of the present invention.
Reference numerals: 1. pre-burying the assembly; 11. an arc groove clamping block; 111. a fixed end; 112. a clamping end; 113. a through hole; 114. an arc-shaped opening; 12. an arc groove supporting block; 121. a support plate; 2. a support bar; 3. a limiting component; 31. a first splint; 311. a first limit post; 32. a second splint; 321. a first limit hole; 33. a rectangular notch; 34. a limiting groove; 4. a fixed plate group; 41. a first fixing plate; 42. a second fixing plate; 43. a compression structure; 431. a first indent; 432. a first pressing block; 433. a second press groove; 434. a second pressing block; 435. a second limit post; 436. a second limiting hole; 44. a limiting block; 5. and (7) rectifying the cloth.
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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The pier water flow resistance reducing device shown in fig. 1 to 13 comprises a pre-buried component 1, a support rod 2, a fixed plate group 4 and a rectifying cloth 5, wherein the pre-buried component 1 is arranged on the back flow side of the pier, and the fixed plate group 4 is used for fixing the rectifying cloth 5 and is rotatably connected with the pre-buried component 1 through the support rod 2; the embedded component 1 comprises a plurality of arc groove clamping blocks 11 arranged along the vertical direction and an arc groove supporting block 12 arranged at the lowest part, and the arc groove supporting block 12 is used for supporting the supporting rod 2; the fixed plate group 4 comprises a first fixed plate 41 and a second fixed plate 42, the first fixed plate 41 and the second fixed plate 42 are pressed against each other, one end of the fixed plate group 4 is connected with the support rod 2, and the other end presses and fixes the rectifying cloth 5 through the first fixed plate 41 and the second fixed plate 42.
In a specific implementation process, a plurality of arc groove clamping blocks 11 and an arc groove supporting block 12 are preset on the back water side of the pier along the vertical direction, wherein one arc groove supporting block 12 is arranged at the bottommost part and used for supporting the supporting rod 2 and limiting the movement of the supporting rod 2. The limiting component 3 is arranged in the supporting rod 2 and is used for fixedly connecting the fixed plate group 4, the fixed plate group 4 is provided with a first fixed plate 41 and a second fixed plate 42 which are mutually pressed, and the rectifying cloth 5 is pressed and fixed through the first fixed plate 41 and the second fixed plate 42. Rectification cloth 5 sets up to soft cloth material, and flexible rectification cloth 5 can change its shape according to rivers direction self-adaptation in a very large range, and cooperation fixed plate group 4 can rotate with pre-buried subassembly 1 and be connected, and fixed plate group 4 can swing and adapt to rectification cloth's deflection direction in the arc opening 114 department of arc groove clamp splice 11, can reduce the flowing water resistance better. Specifically, the rectifying cloth 5 can be made of materials with different thicknesses, materials and water permeability, the shape, the installation structure and other parameters of the rectifying cloth are flexible and variable, and the pier flow resistance reducing device is simple in structure and high in practicability.
Preferably, the arc groove clamp 11 includes a fixed end 111 and a clamping end 112, the fixed end 111 is embedded in the pier, the clamping end 112 is vertically provided with a through hole 113, the through hole 113 is adapted to the support rod 2, an arc opening 114 is provided at an end of the through hole 113 far away from the fixed end 111, and an arc angle of the arc opening 114 is smaller than 180 °.
In the concrete implementation process, stiff end 111 is pre-buried on the pier, pre-buried subassembly 1 passes through stiff end 111 and pier fixed connection, the through-hole 113 of exposed core 112 is used for placing bracing piece 2, the one end of keeping away from stiff end 111 at through-hole 113 is provided with arc opening 114, fixed plate group 4 can rotate with pre-buried subassembly 1 and be connected, fixed plate group 4 can be at the swing of arc opening 114 department of arc groove clamp splice 11 along with rivers deflection and make rectification cloth 5 adapt to the rivers direction, can reduce the flowing water resistance better. The arc angle of the arc opening 114 is less than 180 degrees, so that the support rod 2 can not be displaced and separated from the embedded component 1 while the embedded component 1 and the support rod 2 are rotatably connected.
As a preference of the above embodiment, the arc groove support block 12 includes an arc groove clamp block 11 and a support plate 121 disposed at a bottom end thereof, and the support plate 121 is used to support the support bar 2. When the support rod 2 is supported, the rotation of the support rod 2 is not influenced, and the movement of the support rod 2 in the vertical direction is limited.
As a preferred embodiment, the support rod 2 is a cylindrical structure with two through ends, an opening corresponding to the thickness of the fixing plate set 4 is formed on the support rod 2 along the length direction thereof, the support rod 2 passes through the plurality of arc groove clamping blocks 11, and the opening end of the support rod 2 is arranged towards the arc opening 114 of the arc groove clamping block 11. The inside of bracing piece 2 is used for setting up spacing subassembly 3, and bracing piece 2 is through spacing subassembly 3 and fixed plate group 4 fixed connection.
As the optimization of the above embodiment, a plurality of limiting assemblies 3 are arranged in the support rod 2 along the vertical direction, the limiting assemblies 3 are fixedly connected with the fixing plate group 4, a plurality of limiting blocks 44 are arranged at one end of the fixing plate group 4 close to the support rod 2 along the vertical direction corresponding to the limiting assemblies 3, and the limiting blocks 44 are symmetrically arranged at two sides of the first fixing plate 41 and the second fixing plate 42.
In the specific implementation process, the limiting component 3 is fixedly connected with the limiting block 44; the limiting assembly 3 comprises a first clamping plate 31 and a second clamping plate 32 which are arranged along the vertical direction, the first clamping plate 31 and the second clamping plate 32 are respectively pressed close to each other from the upper end and the lower end of the limiting block 44, and the limiting block 44 is pressed and fixed. Specifically, first splint 31 and second splint 32 all set up to discoid, and correspond fixed plate group 4 and radially seted up rectangular notch 33 along it, have all seted up spacing groove 34 on the both ends face that first splint 31 and second splint 32 are adjacent, and spacing groove 34 suits with stopper 44.
Through compressing tightly each other from the upper and lower both ends of stopper 44 respectively with first splint 31 and second splint 32 and being close to, realize spacing subassembly 3 and stopper 44 fixed connection in the spacing groove 34 of first splint 31 and second splint 32 with stopper 44 cladding, and then realize the fixed connection of backup pad 2 and fixed plate group 4.
In the above embodiment, the first clamping plate 31 is preferably provided with the first stopper post 311 at an end facing the second clamping plate 32, and the second clamping plate 32 is preferably provided with the first stopper hole 321 corresponding to the first stopper post 311 at an end facing the first clamping plate 31. The first clamping plate 31 and the second clamping plate 32 can be conveniently and fixedly connected through the first limiting column 311 and the first limiting hole 321, and the friction force between the first clamping plate 31 and the second clamping plate 32 can be enhanced through mutual matching of the first limiting column 311 and the first limiting hole 321, so that the first clamping plate and the second clamping plate cannot be easily separated, and further the first clamping plate and the second clamping plate can be better fixed on the limiting block 44.
As a preference of the above embodiment, a pressing structure 43 is provided at one end of the fixing plate group 4 away from the support rod 2, the pressing structure 43 includes a first pressing groove 431 and a first pressing block 432 provided on the first fixing plate 41, and a second pressing groove 433 and a second pressing block 434 provided on the second fixing plate 42, the first pressing groove 431 and the first pressing block 432 are provided on one side of the first fixing plate 41 facing the second fixing plate 42, and the second pressing groove 433 and the second pressing block 434 are provided on one side of the second fixing plate 42 facing the first fixing plate 41; a plurality of first pressure grooves 431 and a plurality of first pressure blocks 432 are arranged in the vertical direction, and the first pressure grooves 431 and the first pressure blocks 432 are arranged in a staggered manner; the second pressing groove 433 and the second pressing block 434 are provided in plurality in the vertical direction and respectively correspond to the first pressing block 432 and the first pressing groove 431.
The pressing blocks and the pressing grooves which are matched with each other and distributed along the transverse direction can enhance the friction force between the rectifying cloth 5 and the fixed plate group 4, so that the rectifying cloth 5 cannot be easily separated from the fixed plate group 4 under the impact of water flow. Simple structure and high practicability.
As a preferable example of the above embodiment, a plurality of second limiting columns 435 are disposed on both the first pressure groove 431 and the second pressure groove 433, and second limiting holes 436 are disposed on the first pressing block 432 and the second pressing block 434 corresponding to the second limiting columns 435; the second limit post 435 and the second limit hole 436 are both provided at both ends of the hold-down structure 43 in the vertical direction. The first fixing plate 41 and the second fixing plate 42 can be fixedly connected through the matching of the second limit column 435 and the second limit hole 436, and the matching and positioning between the first fixing plate 41 and the second fixing plate 42 are facilitated.
The pier water flow resistance reducing device is simple in structure and high in practicability. The rectifying cloth is arranged on the water flow of the pier in the back direction, so that the formation of vortexes of the water flow of the pier in the back direction can be disturbed, and the negative pressure at the back of the pier is adjusted, so that the flowing water resistance of the pier is reduced, and the transverse pulsating force is reduced. The flexible rectification cloth can change its shape according to rivers direction self-adaptation in a very large range, and cooperates fixed plate group can rotate with pre-buried subassembly and be connected, and fixed plate group can swing and adapt to rectification cloth's deflection direction at the arc opening part of arc groove clamp splice, can reduce the flowing water resistance better.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A pier water flow resistance reducing device, comprising: the bridge pier comprises a pre-buried assembly (1), supporting rods (2), a fixing plate group (4) and rectifying cloth (5), wherein the pre-buried assembly (1) is arranged on the side of the pier back flow, and the fixing plate group (4) is used for fixing the rectifying cloth (5) and is rotatably connected with the pre-buried assembly (1) through the supporting rods (2);
the embedded component (1) comprises a plurality of arc groove clamping blocks (11) arranged along the vertical direction and an arc groove supporting block (12) arranged at the lowest part, and the arc groove supporting block (12) is used for supporting the supporting rod (2);
the fixed plate group (4) comprises a first fixed plate (41) and a second fixed plate (42), the first fixed plate (41) and the second fixed plate (42) are mutually pressed, one end of the fixed plate group (4) is connected with the supporting rod (2), and the other end of the fixed plate group (4) presses and fixes the rectifying cloth (5) through the first fixed plate (41) and the second fixed plate (42).
2. The pier water flow resistance reducing device according to claim 1, wherein the arc groove clamp block (11) comprises a fixed end (111) and a clamping end (112), the fixed end (111) is embedded in the pier, the clamping end (112) is provided with a through hole (113) in a vertical direction in a penetrating manner, the through hole (113) is adapted to the support rod (2), one end of the through hole (113) far away from the fixed end (111) is provided with an arc opening (114), and an arc angle of the arc opening (114) is smaller than 180 degrees.
3. The pier flow resistance reducing device according to claim 2, wherein the arc groove support block (12) comprises one arc groove clamp block (11) and a support plate (121) provided at a bottom end thereof, the support plate (121) being for supporting the support bar (2).
4. The pier water flow resistance reducing device according to claim 3, wherein the support rod (2) is arranged in a cylindrical structure with two through ends, an opening corresponding to the thickness of the fixed plate group (4) is formed in the support rod (2) in a through mode along the length direction of the support rod, the support rod (2) penetrates through the arc groove clamping blocks (11), and the opening ends of the support rod (2) are arranged towards the arc opening (114) of the arc groove clamping blocks (11).
5. The pier water flow resistance reducing device according to claim 4, wherein a plurality of limiting assemblies (3) are arranged in the support rod (2) along a vertical direction, the limiting assemblies (3) are fixedly connected with the fixed plate group (4), a plurality of limiting blocks (44) are arranged at one end, close to the support rod (2), of the fixed plate group (4) along the vertical direction and correspond to the limiting assemblies (3), and the limiting blocks (44) are symmetrically arranged on two sides of the first fixing plate (41) and the second fixing plate (42).
6. The pier water flow resistance reducing device according to claim 5, wherein the limiting block assembly (3) is fixedly connected with the limiting block (44);
spacing subassembly (3) are including first splint (31) and second splint (32) along vertical direction setting, first splint (31) with second splint (32) are followed respectively the upper and lower both ends of stopper (44) compress tightly each other and are close to, and will stopper (44) compress tightly fixedly.
7. The pier water flow resistance reducing device according to claim 6, wherein the first clamping plate (31) and the second clamping plate (32) are each configured in a disc shape, a rectangular notch (33) is formed in a radial direction of the fixing plate group (4) corresponding thereto, a limiting groove (34) is formed in each of two adjacent end surfaces of the first clamping plate (31) and the second clamping plate (32), and the limiting groove (34) is adapted to the limiting block (44).
8. The pier flow resistance reducing device according to claim 7, wherein a first stopper post (311) is provided at an end of the first bridge plate (31) facing the second bridge plate (32), and a first stopper hole (321) adapted to the first stopper post (311) is provided at an end of the second bridge plate (32) facing the first bridge plate (31).
9. The pier flow resistance reducing device according to claim 1, wherein a compressing structure (43) is provided at an end of the fixed plate group (4) away from the support rod (2), the compressing structure (43) includes a first pressing groove (431) and a first pressing block (432) provided on the first fixed plate (41), and a second pressing groove (433) and a second pressing block (434) provided on the second fixed plate (42), the first pressing groove (431) and the first pressing block (432) are provided at a side of the first fixed plate (41) facing the second fixed plate (42), and the second pressing groove (433) and the second pressing block (434) are provided at a side of the second fixed plate (42) facing the first fixed plate (41);
the first pressure grooves (431) and the first pressing blocks (432) are arranged in a plurality of numbers along the vertical direction, and the first pressure grooves (431) and the first pressing blocks (432) are arranged in a staggered mode;
the second pressure groove (433) and the second pressing block (434) are arranged in a plurality of vertical directions and respectively correspond to the first pressing block (432) and the first pressure groove (431).
10. The pier flow resistance reducing device according to claim 9, wherein a plurality of second limiting columns (435) are provided on each of the first pressure groove (431) and the second pressure groove (433), and second limiting holes (436) are opened in the first pressing block (432) and the second pressing block (434) corresponding to the second limiting columns (435);
the second limit column (435) and the second limit hole (436) are arranged at two ends of the pressing structure (43) along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070066.8A CN112878175A (en) | 2021-01-19 | 2021-01-19 | Pier water flow resistance reducing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070066.8A CN112878175A (en) | 2021-01-19 | 2021-01-19 | Pier water flow resistance reducing device |
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| CN112878175A true CN112878175A (en) | 2021-06-01 |
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| CN202110070066.8A Pending CN112878175A (en) | 2021-01-19 | 2021-01-19 | Pier water flow resistance reducing device |
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| US4078605A (en) * | 1977-02-25 | 1978-03-14 | Cameron Iron Works, Inc. | Riser pipe string |
| CN201011188Y (en) * | 2006-12-30 | 2008-01-23 | 黄意婷 | Enclosure structure |
| US9080610B1 (en) * | 2010-10-21 | 2015-07-14 | VIV Solutions LLC | Vortex suppression fairings |
| CN102865044A (en) * | 2012-10-11 | 2013-01-09 | 江苏科技大学 | Imitated aerofoil adaptive vortex-induced vibration suppression and resistance reduction device for underwater riser |
| CN205277330U (en) * | 2016-01-04 | 2016-06-01 | 西南石油大学 | Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device |
| CN106869821A (en) * | 2017-01-18 | 2017-06-20 | 燕山大学 | A kind of self adaptation vortex-induced vibration suppression device with assistant shape ribbon |
| CN111140570A (en) * | 2020-01-21 | 2020-05-12 | 天津大学 | Marine pipeline vortex-induced vibration suppression device with ribbons |
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