CN113265985A - Wave-eliminating grid for eliminating aqueduct water level fluctuation - Google Patents
Wave-eliminating grid for eliminating aqueduct water level fluctuation Download PDFInfo
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- CN113265985A CN113265985A CN202110366556.2A CN202110366556A CN113265985A CN 113265985 A CN113265985 A CN 113265985A CN 202110366556 A CN202110366556 A CN 202110366556A CN 113265985 A CN113265985 A CN 113265985A
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- inclined plane
- supporting
- wave
- aqueduct
- frame
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention discloses a wave-absorbing grid for eliminating water level fluctuation of an aqueduct, which comprises a frame arranged at a drainage port of a channel of the aqueduct, wherein the frame is a longitudinally-arranged right-angled triangular frame, the inclined surface of the frame is a water-facing surface, the frame is provided with a fixing device and a wave-absorbing device, the fixing device comprises a jacking connecting rod, an inclined surface supporting block, a jacking sliding part and supporting plates, the left side and the right side of the frame are symmetrically provided with the supporting plates, and a plurality of jacking connecting rods are arranged in the frame between the two supporting plates at intervals.
Description
Technical Field
The invention belongs to the technical field of eliminating water level fluctuation of water delivery buildings, and particularly relates to a wave eliminating grid for eliminating aqueduct water level fluctuation.
Background
The aqueduct is widely applied as an important hydraulic building, the existing aqueduct is built by materials such as masonry, concrete, reinforced concrete and the like, in the using process, when large-flow water delivery is carried out in a project, the throttle gate is opened to operate, the phenomenon that the water surface fluctuates alternately in the same cross section groove body of the left channel and the right channel of the aqueduct can occur, the fluctuation amplitude value can flap the cross beam of the aqueduct to cause structural damage, and the periodic left-right shaking of the water surface can cause fatigue damage to the whole structure of the aqueduct, so long as before, the service life of the aqueduct is shortened, and the safe operation of the project can be influenced.
Disclosure of Invention
Aiming at the defects and problems of the existing aqueduct, the invention provides the wave-eliminating grid for eliminating the water level fluctuation of the aqueduct, which has a unique structure, can be directly installed in one of the channels of the aqueduct without damaging the aqueduct, and can disturb the first flow in the channel, thereby effectively solving the problem that the water surface fluctuates alternately in the same cross section of the channel body of the left channel and the right channel of the aqueduct when large-flow water delivery is carried out in the project.
The technical scheme adopted by the invention for solving the technical problems is as follows: a wave-absorbing grid for eliminating aqueduct water level fluctuation comprises a frame arranged at a drainage port of a channel of an aqueduct, the frame is a longitudinal right-angle triangular frame, the inclined plane of the frame is a water-facing surface, the frame is provided with a fixing device and a wave-absorbing device, the fixing device comprises a shoring connecting rod, an inclined plane supporting block, a shoring sliding part and supporting plates, the left side and the right side of the frame are symmetrically provided with the supporting plates, a plurality of shoring connecting rods are arranged at intervals in the frame between the two supporting plates, the left end and the right end of the shoring connecting rod are symmetrically provided with the shoring inclined plane, the shoring inclined plane is arranged towards the back water surface, the left end and the right end of the supporting connecting rod are symmetrically connected with the inclined plane supporting block through the shoring sliding part, one end of the inclined plane supporting block, which is adjacent to the supporting connecting rod, is provided with a supporting inclined plane matched with the shoring inclined plane and is in horizontal sliding contact with the shoring inclined plane, the outer end of the inclined plane supporting block is vertically fixed with the adjacent supporting plate, the jacking sliding component drives the inclined plane supporting block to push the jacking plate outwards along the supporting connecting rod to be jacked with the inner side wall of the adjacent side channel; the wave absorbing device comprises a fixed plate and wave absorbing plates, the fixed plate is symmetrically fixed at the left end and the right end of the inclined plane of the rack along the inclined plane of the rack, a plurality of wave absorbing plates are arranged between the two fixed plates at intervals from bottom to top along the inclined plane of the rack, and the left end and the right end of each wave absorbing plate are fixedly connected with the adjacent fixed plates respectively.
Furthermore, the middle parts of two ends of the jacking connecting rod are respectively provided with a strip-shaped flat groove which penetrates through the jacking inclined plane outwards along the axial direction, the flat grooves are arranged in parallel with the bottoms of the aqueduct slots, the jacking sliding part comprises an elastic part, a sliding block and a guide rod which are sequentially matched and installed in the flat grooves from inside to outside, the outer end of the guide rod outwards extends out of the strip-shaped flat groove to be fixed with the supporting inclined plane of the adjacent inclined plane supporting block, and a sliding gap is formed between the guide rod and the inner groove walls of the strip-shaped flat grooves on the front side and the rear side; the two ends of the sliding block are respectively closely abutted with the inner end of the adjacent guide rod and the outer end of the elastic part, and the abutting part pushes the guide rod to slide through the sliding block.
Further, the elastic piece is a longitudinal top spring.
Furthermore, the guide rod is a square tube, and the inner end of the guide rod is vertically propped against the sliding block.
Furthermore, one end face of the supporting plate adjacent to the inner side wall of the aqueduct is provided with a wave-shaped rubber friction layer.
Further, the frame includes the right angle tripod and indulges and put the connecting rod, be provided with two right angle tripods along vertical symmetry interval in the aqueduct channel, and two right angle tripods are in the same place through many connecting rods fixed connection.
Furthermore, the included angle between the upstream surface of each wave-absorbing plate and the bottom of the aqueduct is 10-15 degrees.
The invention has the beneficial effects that: the invention provides a wave-absorbing fence for eliminating aqueduct water level fluctuation, which has a unique structure and comprises a frame arranged at a water discharge port in a aqueduct channel, the frame is a longitudinal right-angle triangular frame, the inclined plane is a water-facing surface, the impact of water flow in the aqueduct channel on the frame can be reduced, the frame is provided with a fixing device and a wave-absorbing device, the wave-absorbing device is arranged on the water-facing surface of the frame, the fixing device comprises supporting plates symmetrically arranged at the left side and the right side of the frame, at least one supporting connecting rod is arranged in the frame between the two supporting plates at intervals, the left end and the right end of the supporting connecting rod are symmetrically provided with supporting inclined planes, the supporting inclined planes are arranged towards the water-facing surface, the left end and the right end of the supporting connecting rod are symmetrically connected with inclined plane supporting blocks through supporting sliding parts, one end of the inclined plane supporting block, which is adjacent to the supporting connecting rod, is provided with a supporting inclined plane matched with the supporting inclined plane, the supporting inclined plane is arranged towards the water-facing surface, the wave absorbing fence is firmly and conveniently installed in the channel, is convenient to install, cannot damage the channel, and influences the structural safety and the service life of the channel, and is high in installation efficiency and low in installation cost;
the wave absorbing device comprises a fixed plate and a wave absorbing plate, the fixed plate is symmetrically fixed at the left end and the right end of the inclined plane of the rack, a plurality of wave absorbing plates are arranged between the two fixed plates at intervals along the inclined plane of the rack from bottom to top, the left end and the right end of each wave absorbing plate are fixedly connected with the adjacent fixed plates respectively, and the wave absorbing plates can block water flow in the channels, so that the flow velocity of the water flow in the channels is reduced, the water flow in the channels is disturbed, the phenomenon of bilateral symmetry karman vortex street caused by mutual impact of the same flow velocity of the water flow in the two channels of the aqueduct, and the water flow smoothly flows to the downstream along the aqueduct, thereby solving the problem that the water surface alternately fluctuates in the same section of the left channel and the right channel of the aqueduct; and the included angle between the upstream surface of each wave-absorbing plate and the bottom of the aqueduct is 10-15 degrees, so that the energy of water flow can be consumed in the process that the water flow climbs upwards along the wave-absorbing plate and then falls, the flow velocity of the water flow is reduced, the impact force of the water flow on the whole structure of the invention is also reduced, and the service life of the wave-absorbing device is prolonged.
The invention provides a wave-eliminating grid for eliminating aqueduct water level fluctuation, which has a unique structure, can be directly installed in one of the aqueducts without damaging the aqueduct, and can disturb the first tree flow in the aqueduct, thereby effectively solving the problem that the water level alternately fluctuates in the same section of the aqueduct bodies of the left and the right aqueducts when large-flow water delivery is carried out in the engineering.
Drawings
Fig. 1 is a schematic view of the installation position of the present invention.
FIG. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is a schematic structural diagram of the wave-absorbing device of the present invention.
Fig. 5 is a schematic structural view of the fixing device of the present invention.
Fig. 6 is a schematic view of the connection relationship between the top stay bar and the stay plate of the fixing device of the present invention.
FIG. 7 is a schematic view of the construction of the shoring slide of the present invention.
FIG. 8 is a schematic view of the configuration of the connecting rod flat slot of the top brace of the present invention.
FIG. 9 is an exploded view of the thrust of the water jet impulse F stream against the shoring ramp of the present invention.
Fig. 10 is a schematic structural view of the sliding wave-disturbing device of the present invention.
Fig. 11 is a schematic view of the lifter rack structure of the present invention.
Fig. 12 is a schematic view of the engagement driving process of the eccentric gear and the lifting rack of the present invention.
Fig. 13 is a schematic view of the opening position of the water passing opening of the spoiler of the present invention.
Fig. 14 is a schematic view of the baffle installation location of the present invention.
Fig. 15 is a schematic view of the guide table installation of the present invention.
FIG. 16 is a schematic view of the guide stop block of the present invention.
Reference numbers in the figures: the device comprises a aqueduct 1, a channel 11, a frame 2, a right-angled tripod 21, a fixing device 3, a top-supported connecting rod 31, a top-supported inclined plane 311, a flat groove 312, a slope supporting block 32, a supporting inclined plane 321, an elastic part 331, a sliding block 332, a guide rod 333, a supporting plate 34, a wave-absorbing device 4, a fixing plate 41, a wave-absorbing plate 42, a spoiler 51, a water passing port 511, a water wheel driving mechanism 52, an eccentric gear 521, a lifting rack 522, a rack seat 5221, a lifting platform 5223, a rack 5224, a top spring 5225, a bearing seat 524, an impeller 525, a guide plate 526, a rotating shaft 527, a sliding rail 54, a baffle platform 61 and a stop 62.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example 1
The embodiment provides a wave-absorbing grid for eliminating aqueduct water level fluctuation, as shown in fig. 1-10, the wave-absorbing grid comprises a rack 2 installed at a drainage port of an aqueduct 1, the rack 2 is a longitudinal right triangle frame, an inclined plane is a water facing surface and is arranged in the opposite direction of the flow direction and the water flow, the rack 2 comprises a right triangle frame 21 and a longitudinal connecting rod, two right triangle frames are longitudinally symmetrically arranged in the aqueduct channel at intervals, and the two right triangle frames are fixedly connected together through a plurality of connecting rods, so that a right triangle frame is formed.
The frame 2 is provided with a fixing device 3 and a wave absorbing device 4, the wave absorbing device 4 is installed on the upstream surface of the frame 2, the fixing device 3 comprises a longitudinally arranged top support connecting rod 31, an inclined plane supporting block 32, a top support sliding part and a strip-shaped supporting plate 34, the left side and the right side of the frame 2 are symmetrically provided with the supporting plates 34, at least 3 top support connecting rods 31 are uniformly arranged in the frame 2 between the two supporting plates 34 along the arrangement direction of the supporting plates 34 at intervals, the left end and the right end of each top support connecting rod are symmetrically provided with a top support inclined plane 311, the top support inclined planes 311 are arranged towards the downstream surface, the left end and the right end of each supporting rod 31 are symmetrically connected with the inclined planes 32 through the top support sliding part 33, one end of the inclined plane supporting block adjacent to the supporting connecting rod is provided with a supporting inclined plane 321 matched with the top support inclined plane, the supporting inclined plane is arranged towards the upstream surface and is horizontally slid to be contacted with the top support inclined plane 311, the outer end of the inclined plane 32 is vertically fixed with the adjacent supporting plate 34, the fixing mode is various, for example, the inclined plane supporting block 32 is directly welded with the supporting plate 34; the shore sliding part can order about the inclined plane supporting shoe and push outwards the shore board and adjacent side channel inside wall shore along the support connecting rod axial together to when rivers strike the frame, the frame can drive the support connecting rod and slide backward along the support inclined plane of left and right sides inclined plane supporting shoe, and can prop the inclined plane supporting shoe to both sides shore when supporting the connecting rod and gliding backward, make inclined plane supporting shoe and both sides channel inside wall top touch more closely, specifically:
as shown in fig. 5-9, the middle of the two ends of the top-supporting connecting rod 31 is provided with a bar-shaped flat slot 312 which penetrates through the top-supporting inclined plane outwards along the axial direction, the bottom of the flat slot 312 is parallel to the bottom of the aqueduct 1, the top-supporting sliding component 33 comprises an elastic part 331, a sliding block 332 and a guiding rod 333 which are matched and installed in the flat slot 312 from inside to outside in sequence, the guiding rod 333 is a square tube, the inner end of the guiding rod 333 is vertically abutted against the sliding block, the outer end of the guiding rod 333 extends outwards to form a bar-shaped flat slot which is fixed with the supporting inclined plane 321 of the adjacent inclined plane supporting block, a sliding gap is formed between the guiding rod and the inner slot wall of the bar-shaped flat slot at the front and back sides, the two ends of the sliding block 332 are respectively abutted against the inner end of the adjacent guiding rod and the outer end of the elastic part, the top-supporting piece 331 is a longitudinal top spring, and in a natural state, the top-supporting piece 331 pushes the sliding block 332 outwards through the guiding rod 333 and the inclined plane supporting block 32 to prop the inner side wall of the channel together, therefore, when water flow in the channel 11 impacts the rack 2, as shown in fig. 9, the rack 2 can drive the support connecting rod to slide backwards along the support inclined planes of the inclined plane support blocks on the left side and the right side, and at the same time, the water flow F can drive the top support inclined planes to apply F top force to the support inclined planes and generate F sliding force sliding backwards along the support inclined planes, so that the flowing water can synchronously top support the inclined plane support blocks on the left side and the right side while driving the support connecting rod to slide backwards, the inclined plane support blocks are more tightly abutted against the inner side walls of the channels on the two sides, the impact force of the water flow on the rack is dispersed to the inner side walls of the channels on the two sides, the rack is firmly fixed in the channel, the installation and fixation are convenient, the damage to the channels can be avoided, the structure safety; and because the guide rod 333 and the inner groove wall of the strip-shaped flat groove at the front and rear sides have sliding gaps, the guide rod 333 does not limit the frame from moving backwards along the bottom of the groove channel, and when the support connecting rod slides backwards, the elastic piece 331 continuously pushes the sliding block 332 outwards to apply an outwards pushing force to the guide rod 333, so that the support plate 34 is prevented from being separated from the side wall of the groove channel 11.
As shown in fig. 3, the wave-absorbing device 4 includes a fixing plate 41 and a wave-absorbing plate 42, the fixing plate 41 is symmetrically fixed at the left and right ends of the inclined plane of the frame 1 along the inclined plane of the frame, and the fixing manner of the fixing plate 41 is various, for example: the fixing plate 41 is welded with the frame through bolts or directly; the region between the two fixing plates 41 is provided with 8 wave-absorbing plates 42 at intervals along the inclined plane of the frame from bottom to top, the left end and the right end of each wave-absorbing plate 42 are fixedly connected with the adjacent fixing plates respectively, and the wave-absorbing plates 42 play a role in disturbing the water flow in the aqueduct.
The wave-absorbing grid provided by the embodiment is applied to the water level fluctuation wave-absorbing work of the aqueduct body, firstly, the wave-absorbing grid provided by the embodiment is assembled, then the wave-absorbing grid is hoisted and prevented from being arranged in the aqueduct corresponding channel 11, the supporting plates 34 on two sides of the rack can be propped together with the side walls of the adjacent channels 11 on two sides under the action of the propping force of the elastic part in the propping sliding part, the water flow in the channels can directly impact on the wave-absorbing plate of the wave-absorbing device on the upstream surface of the rack, so that the rack can be pushed to move backwards along the bottom of the channel 11 by the water flow, and the support connecting rod can be driven to slide backwards along the support inclined planes of the inclined plane supporting blocks on the left side and the right side by the backward movement of the rack, so that the rack is firmly fixed in the channels by means of the impact force of the water flow, the installation is convenient, the damage to the channels can not be caused, the structure safety and the service life of the channels are influenced, the installation efficiency is high, and the installation cost is low; the water flow impacting on the wave absorbing plates 42 can pass through the wave absorbing grids along the gap between two adjacent wave absorbing plates 42 to flow out of the channel, and when the water flow impacts on the wave absorbing plates 42, the wave absorbing device converts part of the water flow energy into fixed supporting force to act on the side walls on the two sides of the channel through the fixing devices on the two sides of the rack, so that the wave absorbing grids are fixed, the water flow energy is consumed, the water flow velocity in the channel is reduced, the water flow in the channel is disturbed, the phenomenon that the water flow velocity in the two channels of the aqueduct mutually impacts to generate bilateral symmetry karman vortex street in the aqueduct is prevented, the water flow smoothly flows to the downstream along the aqueduct, the problem that the phenomenon that the water surface alternately fluctuates in the same cross section groove body of the left channel and the right channel of the aqueduct in the large-flow water delivery process is solved, and the service life of the aqueduct is prolonged.
Example 2
The difference between the embodiment 2 and the embodiment 1 is that a wavy rubber friction layer is arranged on one end face of the supporting plate 34 adjacent to the inner side wall of the channel 11, and when the top support sliding components at the left end and the right end of the top support connecting rod push the supporting plates 34 at the two sides of the frame 2 outwards through the inclined plane supporting block 32 and the inner side walls of the aqueducts 11 adjacent to the two sides of the frame 2 to be supported together, the rubber friction layer is deformed by the extrusion between the supporting plates and the inner side walls of the aqueducts, so that the friction force between the strip-shaped supporting plates and the inner side walls of the aqueducts is increased, and when water flow impacts the wave-absorbing device, the supporting plates 34 at the two sides of the frame 2 and the inner side walls of the channel 11 are prevented from being displaced.
Example 3
The difference between the embodiment 3 and the embodiment 2 is that the included angle between the upstream surface of each wave absorbing plate and the bottom of the aqueduct is 15 degrees, and the water flow energy is consumed in the process that the water flow in the channel 11 ascends along the wave absorbing plate and then falls, so that the flow velocity of the water flow is reduced, the impact force of the water flow on the whole structure of the invention is also reduced, and the service life of the wave absorbing device is prolonged.
Example 4
Embodiment 4 is different from embodiment 5 in that a sliding wave-disturbing device is provided on the wave-canceling device.
As shown in fig. 10-14, the sliding wave-disturbing device comprises a spoiler 51, a water wheel driving mechanism 52 and a return tension spring, wherein the left and right ends of the spoiler are respectively slidably mounted on the upstream surfaces of the fixing plates 41 on the left and right sides of the wave-damping device through slide rails 54, water passing ports 511 are longitudinally formed in the spoiler positioned right in front of the wave-damping plate of the wave-damping device, the middle part of the tail end of the spoiler is connected with the middle part of the top end of the rack 1 on the rear side of the spoiler through the tension spring 53, the water wheel driving mechanisms are symmetrically arranged on the left and right sides of the spoiler, and each water wheel driving mechanism comprises a fan-shaped eccentric gear 521, a lifting rack 522, a bearing seat 524, an impeller 525, a guide plate 526 and a rotating shaft 527; the rotating shaft 527 is longitudinally arranged above the spoiler 51, the outer end of the rotating shaft extends out of the spoiler 51 horizontally and outwards, the rotating shaft is fixed on the fixing plate 41 at the outer side of the sliding rail 54 in a longitudinal rotating manner through a bearing seat, the eccentric gear 521 is fixedly sleeved on the rotating shaft 527 at the upper side of the spoiler 51, the lifting rack 522 is fixed on the upstream surface of the spoiler 51 vertically below the eccentric gear 521, the lifting rack 522 comprises a rack seat 5221 internally provided with a rectangular cavity, a lifting platform 5223 is matched and arranged in the cavity of the rack seat 5221, the lifting platform 5223 can vertically slide along the wall of the cavity in the rack seat 5221, a top spring 5225 is arranged at the bottom of the lifting platform 5223 and the cavity, the top spring drives the lifting platform 5223 to be in top contact with the top wall of the cavity, a strip-shaped mounting opening communicated with the cavity of the rack seat 5221 is transversely arranged at the middle part of the upper end surface of the rack seat 5221, a rack 5224 is fixed on the upper end surface of the lifting platform 5223 in the mounting opening, and the teeth of the rack 5224 protrude upwards out of the rack seat 5221, and is meshed with the tooth section on the eccentric gear; the impeller 525 is fixedly sleeved on the rotating shaft 527 between the bearing seat 524 and the inner side wall of the adjacent side channel, the guide plate 526 is fixed on the fixing plate 41 on the front side of the impeller, and the tail end of the guide plate faces to the rear side and is arranged on the blade of the impeller 252 above the rotating shaft 527; when the rotating shaft 527 rotates, the eccentric gear is driven to rotate, when the eccentric gear 521 rotates, the spoiler 51 is pushed to slide downwards along the guide rail through the rack 5524 and the rack seat 5221, so that the water passing gap 511 on the spoiler 51 is completely overlapped with the water passing gap between the two wave absorbing plates 42, in the process, the tension spring at the tail end of the spoiler 51 is pulled and stretched, when the rotating shaft drives the tooth section of the eccentric dimension 521 to be separated from the rack, the spoiler 51 loses ejection force, at the moment, the tension spring in the stretched state retracts to pull the spoiler 51 to reset, so that the rack 5224 slides to be right below the eccentric gear 521 along with the spoiler 51, when the eccentric gear 521 rotates, the tooth section of the eccentric gear 521 is continuously meshed with the reset lifting rack 522 and can continuously push the spoiler 51 to slide downwards along the guide rail, and when in use, the spoiler 51 is driven to slide back and forth along the slide rail through the water flow and water drive mechanism in the channel 11 and the tension spring 53, the water flow of the wave-eliminating grid is adjusted along with the dynamic fluctuation of the water flow, so that the flow velocity of the water flow passing through the wave-eliminating grid is periodically changed in a wave shape, the water flow in the grass island is further disturbed, the phenomenon of Karman vortex street which is symmetrical left and right in the aqueduct when the water flows in the two channels of the aqueduct impact each other is prevented, the water flow smoothly flows to the downstream along the aqueduct, the problem that the water surface alternately fluctuates in the same cross section groove body of the left channel and the right channel of the aqueduct in the large-flow water delivery process is solved, and the service life of the aqueduct is further prolonged.
Example 5
The difference between the embodiment 5 and the embodiment 4 is that, as shown in fig. 15 and 16, the upper and lower groove walls at the notches of the flat grooves 312 at the upper and lower sides of the guide rod 33 are symmetrically provided with the stops 61, the outer end of the guide rod 33 passes through the space between the two stops 61 to extend out of the flat groove 312, and the guide rod 33 slides along the stops 61; the upper and lower end faces of the guide rod 33 inside the stop 61 are fixed with stoppers 62, and when the slide block 332 pushes the guide rod 33 to slide axially outwards along the shoring link, the stoppers 62 will abut against the stop 61 together to prevent the guide rod 33 from falling off from the flat groove 312.
Claims (7)
1. A wave-absorbing grid for eliminating aqueduct water level fluctuation comprises a frame arranged at a drainage port of a channel of an aqueduct, and is characterized in that the frame is a longitudinal right-angle triangular frame, the inclined plane of the frame is a water-facing surface, the frame is provided with a fixing device and a wave-absorbing device, the fixing device comprises a shoring connecting rod, an inclined plane supporting block, a shoring sliding part and supporting plates, the left side and the right side of the frame are symmetrically provided with the supporting plates, a plurality of shoring connecting rods are arranged at intervals in the frame between the two supporting plates, the left end and the right end of each shoring connecting rod are symmetrically provided with the shoring inclined plane and are arranged towards the water-facing surface, the left end and the right end of each supporting connecting rod are symmetrically connected with the inclined plane supporting block through the shoring sliding part, one end of each inclined plane supporting block, which is adjacent to the supporting connecting rod, is provided with the supporting inclined plane adaptive to the shoring inclined plane and is in horizontal sliding contact with the shoring inclined plane, the outer end of each inclined plane supporting block is vertically fixed to the adjacent supporting plate, the jacking sliding component drives the inclined plane supporting block to push the jacking plate outwards along the supporting connecting rod to be jacked with the inner side wall of the adjacent side channel; the wave absorbing device comprises a fixed plate and wave absorbing plates, the fixed plate is symmetrically fixed at the left end and the right end of the inclined plane of the rack along the inclined plane of the rack, a plurality of wave absorbing plates are arranged between the two fixed plates at intervals from bottom to top along the inclined plane of the rack, and the left end and the right end of each wave absorbing plate are fixedly connected with the adjacent fixed plates respectively.
2. The grid according to claim 1, wherein the middle of each end of the top brace connecting rod is provided with a bar-shaped flat groove which penetrates through the inclined plane of the top brace outwards along the axial direction, the flat grooves are parallel to the bottom of the aqueduct, the top brace sliding part comprises an elastic part, a sliding block and a guide rod which are matched and arranged in the flat grooves from inside to outside in sequence, the outer end of the guide rod extends outwards to form the bar-shaped flat groove to be fixed with the supporting inclined plane of the supporting block with the adjacent inclined plane, and a sliding gap is formed between the guide rod and the inner groove walls of the bar-shaped flat grooves on the front side and the rear side; the two ends of the sliding block are respectively closely abutted with the inner end of the adjacent guide rod and the outer end of the elastic part, and the abutting part pushes the guide rod to slide through the sliding block.
3. The grid according to claim 2, wherein the elastic member is a vertical top spring.
4. The wave-eliminating grating for eliminating aqueduct water level fluctuation according to claim 2, wherein the guide rod is a square tube, and the inner end of the guide rod is vertically abutted with the slide block.
5. The grid of claim 1, wherein the strut is provided with a rubber friction layer at an end surface adjacent to the inner side wall of the aqueduct.
6. The wave-eliminating grid for eliminating aqueduct water level fluctuation according to claim 1, wherein the frame comprises right-angled tripods and longitudinal connecting rods, two right-angled tripods are longitudinally and symmetrically arranged in the aqueduct channel at intervals, and the two right-angled tripods are fixedly connected together through a plurality of connecting rods.
7. The grid according to claim 1, wherein the angle between the upstream surface of each wave-absorbing plate and the bottom of the aqueduct is 10-15 °.
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| US5294211A (en) * | 1991-07-08 | 1994-03-15 | Masateru Niimura | Floating wave absorber |
| CN106092504A (en) * | 2016-07-04 | 2016-11-09 | 浙江大学 | A kind of wave absorption fairing of adjustable inclination |
| US20200018033A1 (en) * | 2018-07-16 | 2020-01-16 | Jiangsu University Of Science And Technology | Quickly-detachable airbag-type floating breakwater |
| CN110080158A (en) * | 2019-05-13 | 2019-08-02 | 哈尔滨工程大学 | A kind of pond with wave absorber |
| CN110700180A (en) * | 2019-07-16 | 2020-01-17 | 哈尔滨工程大学 | Adjustable angle towing tank tail end reflection wave elimination device |
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