CN218813529U - Simple and convenient ditch structure - Google Patents

Abstract

The utility model relates to a simple and convenient formula irrigation canals and ditches structure, including the ditch body, set up the rivers passageway that supplies water to flow on the ditch body, be connected with the clearance piece on the ditch body, the clearance piece is used for clearing up rivers passageway diapire. Due to the arrangement of the cleaning piece, workers drive the cleaning piece to clean the bottom wall of the water flow channel, and impurities accumulated on the bottom wall of the water flow channel are cleaned, so that the bottom wall of the water flow channel is not easy to remain impurities, and the drainage effect of the ditch body is ensured; due to the arrangement of the filter plate, the filter plate separates water from impurities with small mass, so that the water is not easy to carry the impurities to flow, the impurities are accumulated together in a centralized manner, and the convenience degree of cleaning the inner wall of the water flow channel by workers is further improved; the setting of elastic block realizes the clearance to the sieve mesh inner wall to improve the filter to the separation stability of water and impurity.

Description

Simple and convenient ditch structure

Technical Field

The application relates to the field of hydraulic engineering, in particular to a simple ditch structure.

Background

The term "trench" refers to a general term for a water channel dug for irrigation or drainage. Trenches are roughly divided into two types. One is a rain drain which is visible everywhere around the roadside, and the construction of the rain drain is roughly completed. The other is to convey the waste water of the households and factories to a sewage sewer of a sewage treatment plant in a closed pipeline mode.

Grant utility model patent publication assembled irrigation canals and ditches that bulletin number is CN213596936U, including bottom plate, left side board and right side board, the bottom plate includes the plate body the left end of plate body is equipped with the location structure who is used for the cartridge curb plate, location structure is the mortise or the logical groove that extends along the length direction of plate body, the bottom of left side board is equipped with inserts the end, the size of mortise or logical groove and the size phase-match that inserts the end, it inserts the mortise or leads to the inslot fixedly to insert the end, the right side board is inserted on the right side of plate body and is fixed through cement mortar and/or concrete, the slope of right side board turn right slope in order to support the corpus of living irrigation canals and ditches right side.

With respect to the related art among the above, the inventors believe that some foreign materials on the road surface, such as leaves or stones, fall onto the end surface of the plate-shaped body and are accumulated on the end surface of the plate-shaped body, so that the volume between the plate-shaped body and the left and right side plates through which water passes is reduced, thereby causing a reduction in the drainage effect of the fabricated ditch.

SUMMERY OF THE UTILITY MODEL

In order to improve the drainage effect of the ditch, the application provides a simple and convenient ditch structure.

The application provides a simple and convenient formula irrigation canals and ditches structure adopts following technical scheme:

the utility model provides a simple and convenient formula irrigation canals and ditches structure, includes the ditch body, set up the rivers passageway that supplies water to flow on the ditch body, be connected with the clearance piece on the ditch body, the clearance piece is used for clearing up rivers passageway diapire.

By adopting the technical scheme, when the ditch body is arranged on the ground, water flows along the inner wall of the water flow channel, after the ditch body is used for a long time, sundries on the ground easily enter the water flow channel, and impurities are accumulated on the bottom wall of the water flow channel, so that the volume of the water flow in the water flow channel is reduced, a worker drives the cleaning piece to clean the bottom wall of the water flow channel, the impurities accumulated on the bottom wall of the water flow channel are cleaned, the bottom wall of the water flow channel is not easy to remain impurities, and the drainage effect of the ditch body is ensured; simultaneously, the cleaning piece is connected to the ditch body, and the staff need not to take other cleaning devices to clean the ditch body, reduces the loss of staff's energy, and the messenger staff is more simple and convenient to the clearance of rivers passageway inner wall.

Optionally, be connected with the filter on the ditch body, the filter sets up on rivers passageway inner wall, the filter is used for separation water and impurity.

Through adopting above-mentioned technical scheme, when water flows in rivers passageway, water carries the less partial impurity of rivers passageway diapire quality to flow, and the filter separates water and the less impurity of quality, makes water be difficult for carrying impurity to flow, makes impurity concentrate pile up together, further improves the simple and convenient degree of staff to rivers passageway inner wall clearance.

Optionally, the cleaning member is a cleaning plate, the cleaning plate is slidably connected to the inner wall of the water flow channel, the bottom wall of the cleaning plate abuts against the bottom wall of the water flow channel, and the side wall of the cleaning plate abuts against the outer wall of the filter plate.

By adopting the technical scheme, light materials such as paper and the like in impurities are easily adhered to the outer wall of the filter plate, so that the separation effect of the filter plate on water and the impurities disappears, when a worker drives the cleaning plate to slide on the inner wall of the water flow channel, the outer wall of the cleaning plate is abutted against the outer wall of the filter plate, and the light materials adhered to the outer wall of the filter plate are driven to be separated from the outer wall of the filter plate, so that the outer wall of the filter plate is cleaned; clearance board outer wall butt rivers passageway inner wall simultaneously to the impurity of ordering about rivers passageway inner wall slides towards a direction, realizes the clearance to the rivers passageway inner wall, thereby reduces the clearance burden of staff to the ditch body, thereby improves the clearance efficiency of staff to the ditch body.

Optionally, an accommodating groove is formed in the inner wall of the water flow channel, and the accommodating groove penetrates through the outer wall of the ditch body along the direction close to the ground; when the filter outer wall one-to-one during in embedding holding tank, the filter outer wall supports tight holding tank inner wall and realizes fixedly.

Through adopting above-mentioned technical scheme, when the filter receives external striking to damage, the staff orders about the filter along holding tank inner wall, and the orientation of keeping away from the ditch body slides, and the filter outer wall breaks away from holding tank inner wall, realizes the separation of filter and ditch body, and the staff slides the new filter along holding tank inner wall towards the orientation that is close to the ditch body, and the filter outer wall supports tight holding tank inner wall, realizes the connection of filter and ditch body, makes the staff more simple and convenient to the maintenance of irrigation canals and ditches.

Optionally, the spout that supplies the clearance board to slide is seted up on the rivers passageway diapire, spout intercommunication holding tank, be provided with the subassembly that slides on the component, the subassembly that slides is used for driving the clearance board and slides at the spout inner wall.

Through adopting above-mentioned technical scheme, the subassembly that slides orders about the clearance board and slides at the spout inner wall, and spout intercommunication holding tank makes clearance board outer wall butt filter outer wall, and the clearance board is difficult for breaking away from the filter, improves the connection stability of clearance board and filter.

Optionally, a plurality of sieve meshes have on the filter, be provided with a plurality of elastic blocks on the outer wall of clearance board orientation filter, work as when the subassembly that slides orders about the clearance board and slides, it is a plurality of the elastic block one-to-one gets into a plurality of sieve meshes, just elastic block outer wall butt sieve mesh inner wall.

Through adopting above-mentioned technical scheme, when water carries the less impurity of quality to flow, water is discharged from the sieve mesh, and the impurity that the aperture is greater than sieve mesh aperture piles up on rivers passageway diapire, realize the separation of water and impurity, and the impurity that the aperture is less than sieve mesh aperture passes through sieve mesh discharge, and the impurity that part aperture is little piles up on sieve mesh inner wall, and seal the sieve mesh, make the filter effect of filter disappear, the subassembly that slides orders about the clearance board and slides, a plurality of elasticity piece one-to-one gets into a plurality of sieve meshes, elasticity piece outer wall butt sieve mesh inner wall, and order about the impurity discharge of sieve mesh inner wall, realize the clearance to sieve mesh inner wall, thereby improve the filter to the separation stability of water and impurity.

Optionally, a plurality of guide ways have been seted up on the filter, it is a plurality of sieve meshes of guide way one-to-one, the length direction of a plurality of guide ways and the slip direction of clearance board are parallel to each other, just guide way intercommunication sieve mesh, work as when the clearance board slides, it is a plurality of guide ways of elastic block one-to-one, the guide way inner wall direction elastic block gets into in the sieve mesh.

Through adopting above-mentioned technical scheme, when the clearance board slides, a plurality of guide slots of a plurality of elastic blocks one-to-one, and the direction of sliding of guide slot length direction and clearance board is parallel to each other, and the guide slot inner wall direction elastic block gets into sieve mesh inner wall, and elastic block outer wall butt sieve mesh inner wall makes the difficult skew sieve mesh inner wall of elastic block to improve the connection stability of elastic block and filter.

Optionally, the end of the elastic block is provided with a guide surface, the guide surface is in a circular arc convex shape and abuts against the inner wall of the guide groove, and when the cleaning plate slides, the guide surface abuts against the inner wall of the guide groove and guides the elastic block to enter the sieve hole.

Through adopting above-mentioned technical scheme, when the clearance board slides, spigot surface butt guide way inner wall, and spigot surface sliding connection is on the guide way inner wall, and the spigot surface cross-section is the circular arc protruding form, spigot surface butt sieve mesh inner wall, and in the spigot surface direction elasticity piece got into the sieve mesh, further improved the stability of elasticity piece outer wall and sieve mesh inner wall butt.

Optionally, be connected with the filter vat on the ditch body, the filter vat slides and sets up on the rivers passageway inner wall, the slip direction of filter vat is for being close to or keeping away from ground, just the filter vat port flushes with the spout diapire.

Through adopting above-mentioned technical scheme, order about the cleaning plate when the subassembly that slides at rivers passageway inner wall, cleaning plate bottom wall butt rivers passageway diapire, and order about in the impurity entering filter vat of rivers passageway diapire, realize the collection to impurity, simultaneously cleaning plate side wall butt filter outer wall, and order about light materials such as paper that the filter outer wall adhered and break away from the filter, light materials such as paper receive self gravity to fall into the filter vat inner chamber, further realize the collection to impurity, the staff orders about the filter vat and slides towards the direction that is close to ground, and handle the impurity of filter vat inner chamber, need not the staff and gets into rivers passageway diapire and collect impurity, thereby improve the security of staff to the irrigation canals and ditches clearance.

Optionally, be provided with the driving piece that the drive filter vat slided on the ditch body, the driving piece includes first lead screw and first hand wheel, the tip at first lead screw is fixed to first hand wheel coaxial, the tip that first hand wheel was kept away from to first lead screw rotates and connects on the rivers passageway diapire, first lead screw axis with the glide direction of filter vat is parallel to each other, filter vat outer wall threaded connection works as on first lead screw the hand wheel rotates, and drives when first lead screw rotates, the filter vat slides from top to bottom along first lead screw axis.

Through adopting above-mentioned technical scheme, the staff rotates first hand wheel, orders about first lead screw and rotates to drive the filter vat and slide from top to bottom along first lead screw axis, make the staff more simple and convenient to the removal of filter vat, reduce staff's energy loss, improve staff's work efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. due to the arrangement of the cleaning piece, workers drive the cleaning piece to clean the bottom wall of the water flow channel, and clean impurities accumulated on the bottom wall of the water flow channel, so that the bottom wall of the water flow channel is not easy to remain impurities, and the drainage effect of the ditch body is ensured;

2. due to the arrangement of the filter plate, the filter plate separates water from impurities with small mass, so that the water is not easy to carry the impurities to flow, the impurities are accumulated together in a centralized manner, and the convenience degree of cleaning the inner wall of the water flow channel by workers is further improved;

3. the setting of elastic block realizes the clearance to the sieve mesh inner wall to improve the filter to the separation stability of water and impurity.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a cross-sectional view of a trench structure in accordance with an embodiment of the present invention, showing mainly a glide assembly.

Description of reference numerals: 1. a trench body; 11. a water flow channel; 12. connecting grooves; 13. a chute; 14. a communicating groove; 15. a first rotation hole; 16. a sliding groove; 17. a through groove; 18. a second rotation hole; 19. accommodating grooves; 2. cleaning the workpiece; 21. cleaning the plate; 211. connecting holes; 3. a filter vat; 31. a connection section; 32. a filtration section; 33. a threaded hole; 4. a drive member; 41. a first lead screw; 42. a first hand wheel; 5. a slipping component; 51. rotating the rod; 52. a second screw rod; 53. a first bevel gear; 54. a second bevel gear; 55. a second hand wheel; 6. a filter plate; 61. screening holes; 62. a guide groove; 7. an elastic block; 71. a guide surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a simple and convenient ditch structure. Referring to fig. 1, a simple and convenient formula irrigation canals and ditches structure includes the ditch body 1 and clearance piece 2, has seted up rivers passageway 11 on the outer wall of ditch body 1 orientation ground, and 11 length direction of rivers passageways are the same with ditch body 1 length direction, and clearance piece 2 is connected on the ditch body 1, and clearance piece 2 is used for clearing up 11 diapalls of rivers passageway.

Referring to fig. 1, connecting groove 12 has all been seted up on the relative inner wall of rivers passageway 11, the connecting groove 12 runs through 1 outer wall of the ditch body towards the direction that is close to ground, spout 13 has been seted up to rivers passageway 11 diapire, spout 13 link up two connecting grooves 12, clearance piece 2 is clearance board 21, clearance board 21 sliding connection is on spout 13 inner wall, clearance board 21's the direction of sliding is for being close to or keeping away from one of them connecting groove 12, and clearance board 21 roof flushes with 1 roof of the ditch body.

Referring to fig. 1, when the cleaning plate 21 slides toward a direction close to one of the connecting grooves 12, the outer wall of the cleaning plate 21 abuts against the inner wall of the connecting groove 12, and the outer wall of the cleaning plate 21 close to the water flow channel 11 is flush with the inner wall of the water flow channel 11, so that the water in the water flow channel 11 stably flows.

Referring to fig. 1, the bottom wall of the sliding groove 13 is provided with a communicating groove 14, the notch of the communicating groove 14 faces one of the connecting grooves 12, the communicating groove 14 is communicated with the connecting groove 12, the groove body 1 is connected with a filter vat 3, the filter vat 3 is slidably connected to the inner wall of the connecting groove 12, and the sliding direction of the filter vat 3 is close to or away from the ground along the inner wall of the connecting groove 12.

Referring to fig. 1, when filter vat 3 slided towards the direction that is close to the ditch body 1, 3 outer walls butt intercommunication grooves 14 inner walls of filter vat, and 3 roofs of filter vat flush with 13 diapalls of spout, cleaning plate 21 slides towards the direction that is close to filter vat 3 to the impurity that orders about 11 diapalls of rivers passageway gets into the 3 inner chambers of filter vat, realizes the collection to impurity on the 11 diapalls of rivers passageway.

Referring to fig. 1 and 2, the groove body 1 has been seted up first rotation hole 15 on the outer wall towards ground, and first rotation hole 15 axis and the filter vat 3 direction of sliding are parallel to each other, and the groove 16 that slides has been seted up to spread groove 12 inner wall, and the groove 16 length direction that slides and the direction of sliding of filter vat 3 are parallel to each other, and the first rotation hole 15 of 16 degree of depth directions intercommunications in groove that slides.

Referring to fig. 1 and 2, a driving part 4 is connected to the groove body 1, the driving part 4 is used for driving the filter vat 3 to slide, the driving part 4 comprises a first screw rod 41 and a first hand wheel 42, the first hand wheel 42 is coaxially fixed at the end of the first screw rod 41, the end of the first screw rod 41 far away from the first hand wheel 42 penetrates through the first rotating hole 15 and is rotatably connected to the bottom wall of the communicating groove 14, the axial line of the first screw rod 41 is parallel to the sliding direction of the filter vat 3, and the first hand wheel 42 protrudes out of the top wall of the groove body 1. The filter vat 3 includes linkage segment 31 and fillter segment 32, and linkage segment 31 and fillter segment 32 welded fastening, fillter segment 32 inner chamber are used for holding impurity, and threaded hole 33 has been seted up to linkage segment 31, and threaded hole 33 axis and 3 slip directions of filter vat are parallel to each other, and threaded hole 33 is along self axis through connection segment 31 both sides outer wall.

Referring to fig. 1 and 2, the end portion of the connecting section 31, which is far away from the filter section 32, penetrates through the sliding groove 16 and is located in the first rotating hole 15, the outer wall of the filter section 32 abuts against the inner wall of the connecting groove 12, the axis of the threaded hole 33 and the axis of the first rotating hole 15 coincide, and the end portion of the first lead screw 41, which is far away from the first hand wheel 42, is in threaded connection with the inner wall of the threaded hole 33, so that the connection between the first lead screw 41 and the filter barrel 3 is realized.

Referring to fig. 1, when the first hand wheel 42 rotates, the first lead screw 41 is driven to rotate, the connecting section 31 slides up and down along the axis of the first lead screw 41, and the filtering section 32 is driven to slide up and down.

Referring to fig. 2, a through groove 17 is formed in the inner wall of the sliding groove 13, the length direction of the through groove 17 is parallel to the sliding direction of the cleaning plate 21, a second rotating hole 18 is formed in the outer wall of the trench body 1 facing the ground, the axis of the second rotating hole 18 is parallel to the axis of the first rotating hole 15, and the second rotating hole 18 is communicated with the through groove 17.

Referring to fig. 2, a sliding assembly 5 is connected to the trench body 1, and the sliding assembly 5 is used for driving the cleaning plate 21 to slide. The sliding component 5 comprises a rotating rod 51, a second screw rod 52, a first bevel gear 53, a second bevel gear 54 and a second wheel 55, the second wheel 55 and the first bevel gear 53 are coaxially fixed at two ends of the rotating rod 51, the end part of the rotating rod 51 close to the first bevel gear 53 penetrates through the second rotating hole 18 and is rotatably connected to the bottom wall of the second rotating hole 18, and the second wheel 55 protrudes out of the top wall of the groove body 1. One end of a second screw 52 is rotatably connected to the inner wall of the through groove 17, the other end of the second screw 52 is positioned in the second rotating hole 18, the axis of the second screw 52 is parallel to the sliding direction of the cleaning plate 21, a second bevel gear 54 is coaxially fixed at the end part of the second screw 52 positioned in the second rotating hole 18, and a first bevel gear 53 is meshed with the second bevel gear 54.

Referring to fig. 2, the cleaning plate 21 is provided with a connecting hole 211 facing the outer wall of the connecting groove 12, the axis of the connecting hole 211 is parallel to the sliding direction of the cleaning plate 21, the connecting hole 211 penetrates through the outer wall of the cleaning plate 21 along the axis of the connecting hole 211, the connecting hole 211 is located on the outer wall of the cleaning plate 21 close to the through groove 17, the second screw rod 52 penetrates through the connecting hole 211, and the second screw rod 52 is in threaded connection with the inner wall of the connecting hole 211.

Referring to fig. 1, holding tank 19 has all been seted up on the relative inner wall of rivers passageway 11, holding tank 19 runs through 1 outer wall of ditch body towards the direction that is close to ground, holding tank 19 is towards the direction intercommunication spout 13 of keeping away from ground, holding tank 19 is located spout 13 and keeps away from the one side of lining up groove 17, be connected with filter 6 on the ditch body 1, the relative tip one-to-one of filter 6 is towards holding tank 19, 6 outer wall butt holding tank 19 inner walls of filter, 6 slide towards the direction that is close to spout 13 along 19 inner walls of holding tank, 6 diapire butt spout 13 inner walls of filter, and 6 outer wall butt cleaning plate 21 lateral walls of filter, realize the installation of filter 6 and ditch body 1.

Referring to fig. 1, a plurality of sieve pores 61 are arranged on the filter plate 6, a plurality of guide grooves 62 are arranged on the outer wall of the filter plate 6 at intervals, the guide grooves 62 correspond to the sieve pores 61 one by one, the length directions of the guide grooves 62 are parallel to the sliding direction of the cleaning plate 21, and the two ends of the guide grooves 62 in the length direction are communicated with the inner cavities of the adjacent sieve pores 61.

Referring to fig. 2, welded fastening has a plurality of elastic blocks 7 on the outer wall of clearance board 21 orientation filter 6, the material of elastic block 7 can be rubber or silica gel, the material of elastic block 7 in this application embodiment is rubber, certain deformability has, elastic block 7 is the cylinder, elastic block 7 diameter size equals sieve mesh 61 internal diameter size, and a plurality of elastic blocks 7 one-to-one are located a plurality of guide ways 62, elastic block 7 is the spigot surface 71 towards the terminal surface of guide way 62, spigot surface 71 is the protruding form of circular arc, spigot surface 71 sliding connection is on the guide way 62 inner wall.

Referring to fig. 2, when clearance plate 21 sliding connection is at spout 13 inner wall, clearance plate 21 lateral wall supports tight filter 6 outer wall, the spigot surface 71 supports tight guide way 62 inner wall, and filter 6 is to the pressure of elastic block 7, order about elastic block 7 and take place certain deformation, spigot surface 71 butt sieve mesh 61 inner wall, and direction elastic block 7 gets into in the sieve mesh 61, clearance plate 21 disappears to the pressure of elastic block 7, elastic block 7 elasticity orders about elastic block 7 and resumes the shape, 7 outer wall butt sieve mesh 61 inner walls of elastic block, and order about the impurity discharge in the sieve mesh 61, realize the clearance to sieve mesh 61.

The implementation principle of a simple and convenient ditch structure of the embodiment of the application is as follows: the worker installs the ditch body 1 on the road surface, the water that the rainfall produced flows along rivers passageway 11, impurity on the road surface gets into rivers passageway 11 through the rainwash, and pile up at rivers passageway 11 diapire, the impurity under the rivers partial quality flows, rivers pass through from sieve mesh 61, impurity is stopped by sieve mesh 61 and is piled up on spout 13 diapire, light material such as part paper adheres on the outer wall of filter 6, the worker rotates second hand wheel 55, dwang 51 rotates, and order about second lead screw 52 to rotate, drive clearance board 21 and slide towards the direction that is close to filter vat 3, clearance board 21 diapire supports tight spout 13 inner wall, and order about the impurity of spout 13 diapire to get into the filter vat 3 inner chamber, realize the collection to spout 13 diapire impurity, clearance board 21 outer wall supports tight filter 6 outer wall simultaneously, and order about light material such as paper to break away from filter 6 outer wall, light material such as paper gets into the filter vat 3 inner chamber under self gravity, rotate first hand wheel 42, first lead screw 41 rotates, and drive filter vat 3 and slide towards the direction that ground is close to, the impurity in filter vat 3, the worker clears up the impurity in the filter vat 3, the work piece, make the bottom wall of the easy and convenient drainage channel 11 that makes the rivers passageway 11 is difficult to guarantee, thereby the rivers passageway 11 is piled up.

Simultaneously the 62 inner walls of spigot surface 71 butt guide way, spigot surface 71 direction elasticity piece 7 gets into sieve mesh 61 in, tight sieve mesh 61 inner wall is supported to 7 outer walls of elasticity piece to order about the impurity discharge sieve mesh 61 of sieve mesh 61 inner wall, realize the clearance to sieve mesh 61 inner wall, make impurity be difficult for blockking up sieve mesh 61 inner wall, thereby improve filter 6 to the filterable stability of water and impurity.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. The utility model provides a simple and convenient formula irrigation canals and ditches structure, includes the ditch body (1), set up water flow channel (11) that supply water to flow on the ditch body (1), its characterized in that: the ditch body (1) is connected with a cleaning piece (2), and the cleaning piece (2) is used for cleaning the bottom wall of the water flow channel (11); the groove body (1) is connected with a filter plate (6), the filter plate (6) is arranged on the inner wall of the water flow channel (11), and the filter plate (6) is used for separating water and impurities; the cleaning piece (2) is a cleaning plate (21), the cleaning plate (21) is connected to the inner wall of the water flow channel (11) in a sliding mode, the bottom wall of the cleaning plate (21) is abutted to the bottom wall of the water flow channel (11), and the side wall of the cleaning plate (21) is abutted to the outer wall of the filter plate (6); an accommodating groove (19) is formed in the inner wall of the water flow channel (11), and the accommodating groove (19) penetrates through the outer wall of the ditch body (1) along the direction close to the ground; when the outer walls of the filter plates (6) are embedded into the accommodating grooves (19) in a one-to-one correspondence manner, the outer walls of the filter plates (6) abut against the inner walls of the accommodating grooves (19) to be fixed; offer spout (13) that supply cleaning plate (21) to slide on rivers passageway (11) diapire, spout (13) intercommunication holding tank (19), be provided with sliding assembly (5) on the ditch body (1), sliding assembly (5) are used for driving cleaning plate (21) and slide at spout (13) inner wall.

2. The trench structure of claim 1 wherein: have a plurality of sieve meshes (61) on filter (6), clearance board (21) are provided with a plurality of elastic blocks (7) on the outer wall towards filter (6), work as when subassembly (5) that slides orders about clearance board (21) and slides, it is a plurality of elastic block (7) one-to-one gets into a plurality of sieve meshes (61), just elastic block (7) outer wall butt sieve mesh (61) inner wall.

3. The trench structure of claim 2 wherein: seted up a plurality of guide way (62) on filter (6), it is a plurality of guide way (62) a plurality of sieve meshes (61) of one-to-one, the length direction of a plurality of guide way (62) and the slip direction of clearance board (21) are parallel to each other, just guide way (62) intercommunication sieve mesh (61), work as when clearance board (21) slide, it is a plurality of guide way (62) of elastic block (7) one-to-one, guide way (62) inner wall direction elastic block (7) get into in sieve mesh (61).

4. The trench structure of claim 3 wherein: elastic block (7) tip is provided with spigot surface (71), spigot surface (71) are the protruding form of circular arc, just spigot surface (71) butt guide way (62) inner wall, works as clearance board (21) when sliding, spigot surface (71) butt guide way (62) inner wall, just spigot surface (71) direction elastic block (7) gets into in sieve mesh (61).

5. The trench structure of claim 1 wherein: be connected with filter vat (3) on the ditch body (1), filter vat (3) slide to set up on rivers passageway (11) inner wall, the slip direction of filter vat (3) is for being close to or keeping away from ground, just filter vat (3) port flushes with spout (13) diapire.

6. The trench structure of claim 5 wherein: be provided with driving piece (4) that drive filter vat (3) slided on ditch body (1), driving piece (4) are including first lead screw (41) and first hand wheel (42), first hand wheel (42) coaxial fixation is at the tip of first lead screw (41), the tip rotation connection of first hand wheel (42) is kept away from in first lead screw (41) is on rivers passageway (11) diapire, first lead screw (41) axis with the slip direction of filter vat (3) is parallel to each other, filter vat (3) outer wall threaded connection is on first lead screw (41), works as the hand wheel rotates, and drives when first lead screw (41) rotated, filter vat (3) slide from top to bottom along first lead screw (41) axis.

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