Soil and stone dam foot escape canal anti-siltation device
Technical Field
The utility model relates to the technical field of anti-fouling, in particular to an anti-fouling device for a dam foot drainage ditch of an earth-rock dam.
Background
Earth and rockfill dams are a common hydraulic engineering and are generally made of earth and rockfill materials and are used for intercepting water sources such as rivers, reservoirs and the like. When the dam body material is mainly made of soil and gravel, it is called earth dam, when it is mainly made of stone residue, pebble and blasting stone material, it is called rock-fill dam, and when the two kinds of local materials are in a considerable proportion, it is called earth-stone mixing dam. At present, the earth-rock dam is the most widely applied and fast developed dam type in world dam engineering construction. At the dam foot of the earth-rock dam, a drainage system is usually arranged for draining water and rainwater and the like in the dam body. Drainage systems typically include components such as gutters, sand ponds, sand drains, etc., wherein gutters are an important component thereof, and anti-fouling of gutters is important to ensure proper use of gutters.
The utility model provides a soil stone dam foot escape canal anti-siltation device is introduced in CN202322152260.8, through setting up the clearance subassembly, the inside rivers of escape canal can realize the interception filtration of debris and the sediment of silt under the effect of first interception net, sand basin and second interception net, and then can prevent effectively that the escape canal from being blocked by the siltation thing, with guarantee that the drainage of escape canal is unblocked, can clear up first interception net and second interception net simultaneously, easy operation, with prevent the unblocked of the too much influence drainage of the inside debris of first interception net and second interception net, and can clear up the inside silt of sand basin through setting up the dredge pump, do benefit to the precipitation work of sand basin. But this prevent siltation device is in use filtering structure tiling setting and is piled up debris easily, influences the efficiency of drainage.
Disclosure of utility model
Therefore, the utility model aims to provide an anti-siltation device for a dam foot drainage ditch of an earth-rock dam, so as to solve the problems in the background art and overcome the defects in the prior art.
In order to achieve the above object, an embodiment of an aspect of the present utility model provides a device for preventing siltation in a dam foot of an earth-rock dam, which comprises an earth-rock dam body, wherein a drain is provided at a dam foot of the earth-rock dam body, a protection plate attached to the earth-rock dam body is fixedly installed at the top of one end of the drain, a drainage filter plate is fixedly installed at the top of the protection plate, an inner core filter plate is provided below the drainage filter plate, a plurality of dredging cones in a linear array are provided at one end of the inner core filter plate, a fixing lock catch is fixedly connected at the middle of the inner core filter plate, a waterproof tension rope is fixedly connected inside the fixing lock catch, and a limit ball is fixedly installed at one end of the waterproof tension rope.
By the preferred of arbitrary scheme above-mentioned, the water drainage tank has been seted up to the inside of escape canal, the rotation groove with inner core filter looks adaptation has been seted up on the top of escape canal, one side of rotation groove is provided with the derivation chute, the inside swing joint of derivation chute has the scraper blade, the one end of scraper blade is provided with the boss.
By adopting the technical scheme, the drainage groove in the drainage ditch is utilized for guiding and discharging water, the guiding chute is arranged in the drainage ditch so as to facilitate guiding and processing of sundries which invade the drainage ditch, the scraper can be utilized for cleaning the inside of the guiding chute, the scraper is limited by the boss, and the use stability of the scraper is improved.
By the above-mentioned scheme preferred, the one end and the escape canal fixed connection that the guard plate was kept away from to the drainage filter, drainage filter slope setting, the gradient of drainage filter and earth-rock dam body is the same.
By adopting the technical scheme, the drainage filter plates are obliquely arranged, so that sundries sliding on the dam body of the earth-rock dam slide along the drainage filter plates, the sundries are prevented from accumulating on the filter structure to shield the filter structure, and the drainage filter structure is convenient for guiding and filtering rainwater and sundries on the earth-rock dam.
By the above-mentioned scheme preferred, the filtration pore has all been seted up to the inside of drainage filter, the inner core hole has been seted up to the inside of inner core filter, filtration pore and inner core hole cross distribution.
By adopting the technical scheme, the filter holes are used for filtering sundries sliding on the earth and rockfill dam, so that water descends to the drainage ditch through the filter holes and is filtered for the second time through the inner core holes, and the inner core holes of the inner core filter plate can enable the water passing through the filter holes to flow on the inner core filter plate for a certain distance due to dislocation distribution with the filter holes and then pass through the inner core holes, so that the filtering quality is improved.
By the preferred one end rotation of above-mentioned arbitrary scheme, the one end of inner core filter is connected in the inside of escape canal, the fixed slot with fixed hasp looks adaptation has been seted up at the middle part of inner core filter.
By adopting the technical scheme, the inner core filter plate is arranged at the top of the drainage ditch so as to filter and protect water entering the drainage ditch, and the protection structure of the drainage ditch can be adjusted by moving the inner core filter plate.
By any of the above schemes, it is preferable that the position of the dredging cone corresponds to the position of the filtering hole, the size of the dredging cone is smaller than the size of the filtering hole, and the dredging cone and the inner core hole are distributed in a crossing way.
By adopting the technical scheme, the dredging cone is arranged to penetrate through the filter hole to remove sundries in the filter hole, so that stable operation of the filter hole is ensured.
By any of the above schemes, preferably, one end of the waterproof tension rope penetrates through the drainage filter plate, and the limiting ball is located on one side of the drainage filter plate.
By adopting the technical scheme, the waterproof tension rope is convenient to operate through the limiting ball, the waterproof tension rope is pulled to drive the inner core filter plate to move through the fixed lock catch, so that the inner core filter plate can guide sundries out of the chute to be discharged, and the inner core filter plate can be conveniently moved and adjusted.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. The top of escape canal sets up the slope filtration that is the same with earth and rockfill dam inclination, make the debris of landing on the earth and rockfill dam can follow the incline direction landing, avoid the debris of landing on the earth and rockfill dam to pile up on filtration for a long time and shelter from filtration, and set up the inner core that can adjust between filtration and escape canal and filter the clearance structure, can clear up filtration through adjusting the inner core and filter the clearance structure, guarantee filtration's filtration efficiency, set up the stay cord on the inner core and filter the clearance structure simultaneously and adjust, and steam generator is simple in structure, and the clearance is convenient, has improved the convenience of anti-siltation device use.
2. The inside at the escape canal sets up the structure of deriving of slant, utilizes the structure of deriving to filter the top of clearance structure to the escape canal with the inner core and clear up, guarantees the stability that the escape canal used.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a structure according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a drain according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a filter plate with an inner core according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of a drain according to an embodiment of the present utility model;
FIG. 5 is an enlarged schematic view of the structure A in FIG. 4 according to an embodiment of the present utility model;
Wherein, the dam body of the earth-rock dam, the 2-drainage ditch, the 3-protection plate, the 4-drainage filter plate, the 5-inner core filter plate, the 6-dredging cone, the 7-fixed lock catch, the 8-waterproof tension rope, the 9-limit ball, the 10-filtering hole, the 11-inner core hole, the 12-drainage groove, the 13-guiding chute, the 14-scraping plate and the 15-boss are arranged.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.
As shown in fig. 1-5, the anti-siltation device for the earth and rockfill dam foot drainage ditch of the embodiment of the utility model comprises an earth and rockfill dam body 1, wherein a drainage ditch 2 is arranged at the dam foot of the earth and rockfill dam body 1, a protection plate 3 which is attached to the earth and rockfill dam body 1 is fixedly arranged at the top of one end of the drainage ditch 2, a drainage filter plate 4 is fixedly arranged at the top end of the protection plate 3, an inner core filter plate 5 is arranged below the drainage filter plate 4, a plurality of dredging cones 6 in linear arrays are arranged at one end of the inner core filter plate 5, a fixed lock catch 7 is fixedly connected with the middle part of the inner core filter plate 5, a waterproof tension rope 8 is fixedly connected with the inner part of the fixed lock catch 7, and a limiting ball 9 is fixedly arranged at one end of the waterproof tension rope 8.
By the above-mentioned scheme, it is preferable that the inside of escape canal 2 has been seted up escape canal 12, and the rotation groove with inner core filter 5 looks adaptation has been seted up on the top of escape canal 2, and one side of rotation groove is provided with and derives chute 13, and the inside swing joint of deriving chute 13 has scraper blade 14, and the one end of scraper blade 14 is provided with boss 15.
By adopting the technical scheme, the drainage groove 12 in the drainage ditch 2 is utilized to guide and discharge water, the guiding-out chute 13 is arranged in the drainage ditch 2 to facilitate guiding-out treatment of sundries which invade the drainage ditch 2, the scraper 14 can be utilized to clean the inside of the guiding-out chute 13, the scraper 14 is limited by the boss 15, and the use stability of the scraper 14 is improved.
By any of the above-mentioned schemes, it is preferable that one end of the drain filter plate 4 away from the protection plate 3 is fixedly connected with the drain 2, the drain filter plate 4 is inclined, and the inclination of the drain filter plate 4 is the same as that of the earth-rockfill dam 1.
By adopting the technical scheme, the drainage filter plates 4 are obliquely arranged, so that sundries sliding on the earth-rock dam body 1 slide along the drainage filter plates 4, the sundries are prevented from accumulating on the filter structure to shield the filter structure, and the drainage filter structure is convenient for guiding and filtering rainwater and sundries on the earth-rock dam.
By any of the above schemes, it is preferable that the inside of the drain filter plate 4 is provided with the filter holes 10, the inside of the core filter plate 5 is provided with the core holes 11, and the filter holes 10 and the core holes 11 are distributed in a crossing manner.
By adopting the technical scheme, the filter holes 10 are used for filtering sundries sliding on the earth and rockfill dam, so that water descends to the drainage ditch 2 through the filter holes 10 and is filtered for the second time through the inner core holes 11, and the inner core holes 11 of the inner core filter plate 5 can enable the water passing through the filter holes 10 to flow on the inner core filter plate 5 for a certain distance due to dislocation distribution with the filter holes 10 and then pass through the inner core holes 11, so that the filtering quality is improved.
By any of the above-mentioned schemes, it is preferable that one end of the inner core filter plate 5 is rotatably connected to the inside of the drain 2, and a fixing groove adapted to the fixing lock catch 7 is provided in the middle of the inner core filter plate 5.
By adopting the technical scheme, the inner core filter plate 5 is arranged at the top of the drainage ditch 2 to filter and protect water entering the drainage ditch 2, and the protection structure of the drainage ditch 2 can be adjusted by moving the inner core filter plate 5.
By either of the above-mentioned schemes, it is preferable that the position of the dredging cone 6 corresponds to the position of the filter hole 10, the size of the dredging cone 6 is smaller than the size of the filter hole 10, and the dredging cone 6 and the inner core hole 11 are distributed crosswise.
By adopting the technical scheme, the dredging cone 6 is arranged to penetrate through the filter holes 10 to remove sundries in the filter holes 10, so that stable operation of the filter holes 10 is ensured.
It is preferable from any of the above-described aspects that one end of the waterproof tension string 8 penetrates the drain filter plate 4, and the limit ball 9 is located at one side of the drain filter plate 4.
By adopting the technical scheme, the waterproof tension rope 8 is convenient to operate through the limiting ball 9, the waterproof tension rope 8 is pulled to drive the inner core filter plate 5 to move through the fixed lock catch 7, so that the inner core filter plate 5 can guide sundries to the guiding-out chute 13 to be discharged, and the inner core filter plate 5 can be conveniently moved and adjusted.
The utility model relates to an earth-rock dam foot drainage ditch anti-siltation device, which has the following working principle:
After the drainage filter plate 4 filters sundries, the inner core filter plate 5 filters water again, the limiting ball 9 is pulled to drive the waterproof tension rope 8 to move, the waterproof tension rope 8 drives the inner core filter plate 5 to rotate through the fixed lock catch 7, and the inner core filter plate 5 drives the dredging cone 6 to clean the filtering holes 10.
Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:
1. The top of the drainage ditch 2 is provided with the inclined filtering structure which is the same as the slope of the earth and rockfill dam, so that sundries sliding on the earth and rockfill dam can slide along the inclined direction, the sundries sliding on the earth and rockfill dam are prevented from being piled up on the filtering structure for a long time to shield the filtering structure, an inner core filtering and cleaning structure which can be adjusted is arranged between the filtering structure and the drainage ditch 2, the filtering structure can be cleaned by adjusting the inner core filtering and cleaning structure, the filtering efficiency of the filtering structure is guaranteed, and meanwhile, a pull rope is arranged on the inner core filtering and cleaning structure for adjustment.
2. The inside at escape canal 2 sets up the structure of deriving of slant, utilizes the structure of deriving to filter the top of clearance structure to escape canal 2 along with the inner core and clear up, guarantees the stability that escape canal 2 used.