CN112774303A - Environment-friendly farmland hydraulic engineering cleaning device - Google Patents

Environment-friendly farmland hydraulic engineering cleaning device Download PDF

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Publication number
CN112774303A
CN112774303A CN202110009112.3A CN202110009112A CN112774303A CN 112774303 A CN112774303 A CN 112774303A CN 202110009112 A CN202110009112 A CN 202110009112A CN 112774303 A CN112774303 A CN 112774303A
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China
Prior art keywords
cam block
shell
pipe
spiral groove
cleaning device
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Granted
Application number
CN202110009112.3A
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Chinese (zh)
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CN112774303B (en
Inventor
王振乾
肖召伟
王玉峰
陈建磊
龚涛
常金光
李家坤
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王振乾
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Priority to CN202110009112.3A priority Critical patent/CN112774303B/en
Publication of CN112774303A publication Critical patent/CN112774303A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B13/00Irrigation ditches, i.e. gravity flow, open channel water distribution systems

Abstract

The invention relates to the technical field of hydraulic engineering, in particular to an environment-friendly cleaning device for farmland hydraulic engineering. Comprises a shell, a filter element pipeline, a bidirectional threaded pipe and a floating filter pipe; the filter element pipeline is arranged in the shell and provided with an arc-shaped hole, the outer surface of the bidirectional threaded pipe is provided with a first spiral groove and a second spiral groove which are opposite in rotation direction, the floating filter pipe is provided with a first cam block and a second cam block, the first cam block is positioned in the arc-shaped hole, and the second cam block can move in the first spiral groove and the second spiral groove. According to the invention, the floating filter pipe is controlled to move leftwards through water pressure, and the second cam block moves along the first thread groove; the rotation speed of the bidirectional threaded pipe is controlled through water flow, and when the water flow is increased, the bidirectional threaded pipe rotates in an accelerating way to enable the second cam block to move along the second spiral groove, so that the floating filter pipe is driven to move rightwards to reset; the floating filter pipe is controlled to move and clean through the combined action of pressure and water flow speed, and the misoperation of equipment caused by only adopting a single control scheme is avoided.

Description

Environment-friendly farmland hydraulic engineering cleaning device
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to an environment-friendly cleaning device for farmland hydraulic engineering.
Background
In field irrigation, be used for usually can growing in the ditch of irrigation aquatic plants such as pasture and water, also can contain certain debris simultaneously, if direct irrigate water pump to the farmland in the ditch, debris flow in the farmland on the one hand can cause soil pollution, on the other hand part aquatic plant is by pump can grow again behind the farmland, cause the influence to the growth of crops in the field, consequently when irrigating the farmland, need be used for irrigating water again after separating with water with impurity, aquatic plants etc. in the channel with filter equipment.
In the filtering process of the filtering device in the prior art, the filter screen has the problem of sundries accumulation, and the local pressure difference in the filtering device is increased after long-time work, so that the device is damaged. When the automatic self-cleaning filtering device judges whether self-cleaning is needed, influence of a single factor is usually considered, and errors are easy to occur.
Disclosure of Invention
According to at least one defect of the prior art, the invention provides an environment-friendly cleaning device for the irrigation and water conservancy projects, so as to solve the problem that the judgment of the existing cleaning device is inaccurate during self-cleaning.
The invention relates to an environment-friendly farmland hydraulic engineering cleaning device, which adopts the following technical scheme: the method comprises the following steps:
the shell is horizontally arranged, the lower side and the right end of the shell are respectively provided with a water inlet and a water outlet, and the left end of the shell is communicated with a collecting chamber;
the filter element pipeline is arranged in the shell along the horizontal direction, and an arc-shaped hole extending along the length direction of the filter element pipeline is formed in the outer peripheral wall of the right end of the filter element pipeline;
the filter element comprises a shell, a bidirectional threaded pipe, a fan blade, a first spiral groove and a second spiral groove, wherein the shell is rotatably arranged on the shell, the left end of the bidirectional threaded pipe is inserted into the right end of the filter element pipeline, the right end face of the bidirectional threaded pipe is connected with the fan blade, the peripheral wall face of the bidirectional threaded pipe is provided with the first spiral groove and the second spiral groove which are opposite in rotation direction, and the right ends of the first spiral groove and the second spiral groove are communicated with;
the floating filter pipe is arranged on the outer side of the filter element pipeline in a left-right sliding mode, the left end of the floating filter pipe is connected with the inner peripheral wall of the shell in a sliding and sealing mode, and a dirt pushing plate with the outer end inclined to the left is arranged on the outer peripheral wall of the right half portion of the floating filter pipe;
a first cam block is rotatably arranged on the inner side wall of the right end of the floating filter pipe in the radial direction of the floating filter pipe, a second cam block is coaxially and rotatably arranged on the inner side of the first cam block, and the first cam block is connected with the second cam block through a torsion spring;
under the conventional state, the first cam block is located the arc hole and is located the rightmost end in arc hole, the second cam block is located the ring channel, first cam block with between the second cam block the torsional spring has the pretightning force.
Optionally, the first cam block and the second cam block are both elliptical, and the rotation axes of the first cam block and the second cam block are both located at one end of the major axis thereof; the axis of rotation of the second cam block is located at the right end of the second cam block.
Optionally, a plurality of filtration pores are evenly distributed on the floating filter pipe, the filter element pipeline is arranged to be a hollow structure, and a filter screen is arranged inside the filter element pipeline.
Optionally, the left end of the floating filter tube is provided with a sealing flange, and the sealing flange abuts against the inner peripheral wall of the outer shell.
Optionally, the filter core pipeline includes the portion of permeating water and the installation department that is connected from a left side to the right side, it is provided with a plurality of along its axial extension's the breach of permeating water to permeate water on the portion of permeating water, the arc hole sets up the installation department.
Optionally, a rotating shaft is arranged on the first cam block, a through hole penetrating through the outer surface of the first cam block is formed in the axis of the rotating shaft, the first cam block is rotatably installed on the fixed shaft of the floating filter pipe through the through hole, a rotating hole is formed in the second cam block, the second cam block is rotatably installed in the rotating shaft through the rotating hole, a first blocking piece and a second blocking piece are respectively arranged on the first cam block and the second cam block, the torsional spring is sleeved in the rotating shaft, and two ends of the torsional spring are respectively installed on the first blocking piece and the second blocking piece.
Optionally, a water guide hole extending in the radial direction is formed in the circumferential wall of the right end of the bidirectional threaded pipe, the right end of the floating filter pipe is a shielding portion, and the shielding portion shields the arc-shaped hole in a normal state.
Optionally, the collecting chamber is connected to the outer peripheral wall surface of the housing, a communication hole is formed in the peripheral wall of the housing, the communication hole is communicated with the collecting chamber, and a sealing plug is arranged on the collecting chamber.
Optionally, an annular barb is arranged on the outer peripheral wall surface of the floating filter pipe, and an elastic check ring is arranged at the right end of the communication hole.
Optionally, an end cover is arranged at the left end of the housing, and a pressure relief hole is formed in the end cover.
The invention has the beneficial effects that: the invention relates to an environment-friendly farmland hydraulic engineering cleaning device which is provided with a floating filter pipe, a filter element pipeline and a bidirectional threaded pipe, wherein the outer circular surface of the bidirectional threaded pipe is provided with a first spiral groove and a second spiral groove which have opposite rotation directions, the filter element pipeline is provided with an arc-shaped hole, the floating filter pipe is provided with a first cam block and a second cam block, the first cam block is positioned in the arc-shaped hole, and the second cam block can move in the first spiral groove and the second spiral groove. The floating filter pipe is controlled by water pressure to move leftwards to remove dirt, the second cam block moves along the first threaded groove when the floating filter pipe moves leftwards, the rotating speed of the bidirectional threaded pipe is controlled by water flow, and the second cam block moves along the second threaded groove by rotation of the bidirectional threaded pipe when the water flow is increased, so that the floating filter pipe is driven to move rightwards to reset. Therefore, the floating filter pipe is controlled to move and clean under the combined action of pressure and water flow speed, and the condition that judgment is not accurate enough due to the fact that unilateral control schemes such as pressure control are adopted is avoided, and equipment is caused to make wrong actions.
Drawings
In order to illustrate more clearly the embodiments of the invention or the solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained by those skilled in the art without inventive exercise from these drawings, it being understood that these drawings are not necessarily drawn to scale.
FIG. 1 is a schematic view of the overall structure of an environment-friendly cleaning device for irrigation and water conservancy projects;
FIG. 2 is a schematic structural view of the environment-friendly cleaning device for irrigation and water conservancy projects of the present invention after the floating filter tube moves leftwards;
FIG. 3 is a schematic view of a bidirectional threaded pipe and its structure according to the present invention;
FIG. 4 is a schematic view of the construction of the cartridge tube of the present invention;
FIG. 5 is a schematic view of the installation structure of the first cam block, the rotating shaft, etc. in the present invention;
FIG. 6 is another angle view of FIG. 5;
FIG. 7 is a schematic structural view of a second cam block and a second stop of the present invention;
fig. 8 is a partially enlarged view of a portion a in fig. 1.
In the figure: 100. a housing; 101. a collection chamber; 102. a communicating hole; 103. a water outlet; 104. a water inlet; 105. a sealing plug; 106. a circlip; 200. an end cap; 201. a pressure relief vent; 300. a bidirectional threaded pipe; 301. a mounting flange; 302. a water guide hole; 303. a fan blade; 304. a first helical groove; 305. a second helical groove; 306. an annular groove; 400. a filter element conduit; 401. an arc-shaped hole; 402. a water permeable gap; 500. a floating filter tube; 501. a dirt pushing plate; 502. filtering holes; 503. an annular barb; 504. a sealing flange; 600. a bearing; 700. a first cam block; 701. a through hole; 702. a rotating shaft; 703. a first baffle plate; 800. a second cam block; 801. hole turning; 802. a second baffle plate; 803. a torsion spring; 900. and (5) filtering by using a filter screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, the environment-friendly cleaning device for irrigation and water conservancy projects of the present invention includes a housing 100, a filter element pipe 400, a bidirectional threaded pipe 300, and a floating filter pipe 500. The housing 100 is horizontally disposed, and has a water inlet 104 and a water outlet 103 at the lower side and the right end thereof, respectively, and a collection chamber 101 communicated with the left end thereof. The filter element duct 400 is horizontally disposed inside the housing 100, and an arc-shaped hole 401 extending in a length direction thereof is provided on a right end outer peripheral wall of the filter element duct 400. The bidirectional threaded pipe 300 is rotatably installed in the housing 100, and the left end of the bidirectional threaded pipe is inserted into the right end of the filter element pipe 400, the right end surface of the bidirectional threaded pipe 300 is connected with the fan blade 303, the outer peripheral wall surface of the bidirectional threaded pipe 300 is provided with a first spiral groove 304 and a second spiral groove 305, which have opposite rotation directions, and the right ends of the first spiral groove 304 and the second spiral groove 305 are communicated with the annular groove 306. The floating filter tube 500 is arranged outside the filter element pipeline 400 in a left-right sliding manner, the left end of the floating filter tube is connected with the inner peripheral wall of the shell 100 in a sliding and sealing manner, and the outer end of the outer peripheral wall of the right half part of the floating filter tube 500 is provided with a dirt pushing plate 501 inclined towards the left.
The inner side wall of the right end of the floating filter pipe 500 is rotatably provided with a first cam block 700 around the radial direction thereof, the inner side of the first cam block 700 is coaxially and rotatably provided with a second cam block 800, and the first cam block 700 and the second cam block 800 are connected through a torsion spring 803. Under the normal state, the first cam block 700 is positioned in the arc-shaped hole 401 and at the rightmost end of the arc-shaped hole 401, the second cam block 800 is positioned in the annular groove 306, the torsion spring 803 between the first cam block 700 and the second cam block 800 has a pretightening force, and one end of the second cam block 800, which is far away from the rotation axis of the second cam block, inclines towards the direction close to the first spiral groove 304 and the second spiral groove 305.
During normal work, the water pump is gone into shell 100 and the space that the filter tube 500 encloses that floats with water through water inlet 104 pump in, and the left end equipartition of filter tube 500 that floats has a plurality of filtration pores 502, and filter core pipeline 400 sets up to hollow out construction, and the inside of filter core pipeline 400 is provided with filter screen 900, and water passes through filtration pore 502 and accomplishes the filtration through filter tube 500 that floats, filter core pipeline 400 and filter screen 900, and the back is discharged through delivery port 103 (flabellum 303 intercommunication delivery port 103) through two-way screwed pipe 300. In the normal drainage process, the water flow drives the fan blade 303 to rotate counterclockwise, and further drives the bidirectional threaded pipe 300 to rotate counterclockwise. During the rotation of the bidirectional threaded pipe 300, the bidirectional second cam block 800 slides in the annular groove 306, and at this time, the bidirectional threaded pipe 300 can overcome the pre-tightening force of the torsion spring 803 when rotating.
When the floating filter tube 500 is blocked by the impurities in the water, the water flow at the water outlet 103 is weakened, and the rotation speed of the bidirectional threaded tube 300 is reduced. The water continues to be pumped to increase the external pressure of the floating filter tube 500 and push the floating filter tube 500 to move to the left, and the impurities are pushed to the collection chamber 101 by the push-dirty plate 501 while the floating filter tube 500 moves to the left. In the process that the floating filter tube 500 moves leftwards, the second cam block 800 is dragged into the intersection point of the first spiral groove 304 and the second spiral groove 305 (the first spiral groove 304 and the second spiral groove 305 divide the outer circular surface of the bidirectional spiral tube 300 into a plurality of diamond blocks) in cooperation with the rotation of the bidirectional spiral tube 300, and at this time, because the rotation speed of the bidirectional spiral tube 300 is reduced, the rotating force of the bidirectional spiral tube cannot overcome the pre-tightening force of the torsion spring 803, so that the second cam block 800 moves along the first spiral groove 304, that is, moves leftwards under the driving of the floating filter tube 500.
Meanwhile, the first cam block 700 moves along the arc-shaped hole 401, so that the first cam block 700 rotates by a certain angle and the torsion force of the torsion spring 803 is gradually released, and the pretightening force of the torsion spring 803 is gradually reduced. Further left movement of the first cam block 700 gradually opens the arc-shaped hole 401, water enters the bidirectional threaded pipe 300 from the arc-shaped hole 401 to push the fan blade 303 to rotate, the water flow gradually increases, and the rotating speed of the bidirectional threaded pipe 300 is gradually increased. More closely, as the floating filter tube 500 moves to the left, part of the impurities are pushed into the collection chamber 101, the water flow is further lifted along with the removal of the impurities, and the fan blade 303 drives the bidirectional threaded tube 300 to rotate at a constant speed. When the rotating force of the bidirectional threaded pipe 300 is enough to overcome the pre-tightening force of the torsion spring 803, the second cam block 800 is pushed by the vertex of the diamond block at the intersection point of the first spiral groove 304 and the second spiral groove 305, and rotates counterclockwise along the axis thereof, so as to align with the second spiral groove 305 and move along the second spiral groove 305, thereby driving the floating filter pipe 500 to move rightwards for resetting.
During the process that the floating filter pipe 500 moves to the right, if the blockage occurs again, the flow rate of the water outlet 103 is reduced, and the rotation speed of the bidirectional threaded pipe 300 is reduced, so that the rotation force of the bidirectional threaded pipe 300 is not enough to overcome the torsion force of the torsion spring 803, and meanwhile, the floating filter pipe 500 moves to the left under the action of external pressure, and the second cam block 800 is reversed again to enter the first spiral groove 304 and moves along the first spiral groove 304. If the congestion is not serious, the floating filter tube 500 is floated, the flow rate is quickly recovered until the rotating force of the bidirectional threaded tube 300 is enough to overcome the pre-tightening force of the torsion spring 803, and the second cam block 800 is reversed again to enter the second spiral groove 305 to push the floating filter tube 500 to the right again. Through the scheme, the floating filter pipe 500 is controlled to move and clean under the combined action of the pressure and the water flow speed, and the condition that judgment is not accurate enough due to the fact that only unilateral control schemes such as pressure control are adopted is avoided, and equipment is caused to make wrong actions.
In this embodiment, the first cam block 700 and the second cam block 800 are both elliptical, and the rotation axes of the first cam block 700 and the second cam block 800 are both located at one end of the major axis thereof; the rotational axis of the second cam block 800 is located at the right end of the second cam block 800. The first cam block 700 and the second cam block 800 are arranged in an oval structure, so that the first cam block 700 can move in the arc-shaped hole 401 conveniently, and the second cam block 800 can change directions flexibly in the moving process.
In this embodiment, the left end of the floating filter tube 500 is provided with a sealing flange 504 protruding from the outer circumferential wall thereof, and the sealing flange 504 abuts against the inner circumferential wall of the housing 100 to slidably seal the floating filter tube 500 with the housing 100. For the convenience of installation, the housing 100 is provided with left and right chambers communicating with each other, the filter cartridge pipe 400 and the floating filter pipe 500 are installed in the left chamber, and the water inlet 104 communicates with the left chamber correspondingly. The left end of the right chamber is provided with a bearing 600, the right end of the bidirectional threaded pipe 300 is provided with a mounting flange 301, and the bidirectional threaded pipe 300 is mounted in the right chamber through the matching of the mounting flange 301 and the bearing 600 and extends to the left chamber. Under normal conditions, the floating filter tube 500 is pressed against the right end face of the left chamber, that is, the first cam block 700 is located at the rightmost end of the arc-shaped hole 401.
In this embodiment, filter core pipeline 400 includes from a left side to the right portion of permeating water and installation department that is connected, is provided with a plurality of breach 402 of permeating water of its axial extension of edge on the portion of permeating water, and arc hole 401 sets up at the installation department. The right end peripheral wall of the bidirectional threaded pipe 300 is provided with a water guide hole 302 extending along the radial direction, the right end part of the floating filter pipe 500 is a shielding part, the shielding part shields the arc-shaped hole 401 in a normal state, and after the floating filter pipe 500 moves leftwards to open the arc-shaped hole 401, water enters the bidirectional threaded pipe 300 through the arc-shaped hole 401 and the water guide hole 302, so that the circulation path of the water is reduced.
In this embodiment, a rotating shaft 702 is disposed on the first cam block 700, a through hole 701 penetrating through the outer surface of the first cam block 700 is disposed at an axis of the rotating shaft 702, the first cam block 700 is rotatably mounted on the fixing shaft of the floating filter tube 500 through the through hole 701, a rotating hole 801 is disposed on the second cam block 800, the second cam block 800 is rotatably mounted on the rotating shaft 702 through the rotating hole 801, a first blocking piece 703 and a second blocking piece 802 are respectively disposed on the first cam block 700 and the second cam block 800, the torsion spring 803 is sleeved on the rotating shaft 702, and two ends of the torsion spring are respectively mounted on the first blocking piece 703 and the second blocking piece 802.
In this embodiment, the collecting chamber 101 is connected to the outer peripheral wall surface of the casing 100, the communicating hole 102 is provided in the peripheral wall of the casing 100, the collecting chamber 101 is communicated with the communicating hole 102, the sealing plug 105 is provided in the collecting chamber 101, and the sealing plug 105 can be opened to discharge the impurities after the collecting chamber 101 is filled with the impurities.
In this embodiment, the right end of the communication hole 102 is provided with a circlip 106 to prevent the impurities entering the collection chamber 101 from moving toward the water inlet 104 again, and the floating filter pipe 500 is provided with an annular barb 503 on the outer peripheral wall surface thereof, so that the annular barb 503 can better collect the aquatic plants.
In this embodiment, an end cap 200 is disposed at the left end of the casing 100, and a pressure relief hole 201 is disposed on the end cap 200 to ensure pressure balance inside the casing 100.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an environment-friendly farmland hydraulic engineering cleaning device which characterized in that: the method comprises the following steps:
the shell is horizontally arranged, the lower side and the right end of the shell are respectively provided with a water inlet and a water outlet, and the left end of the shell is communicated with a collecting chamber;
the filter element pipeline is arranged in the shell along the horizontal direction, and an arc-shaped hole extending along the length direction of the filter element pipeline is formed in the outer peripheral wall of the right end of the filter element pipeline;
the filter element comprises a shell, a bidirectional threaded pipe, a fan blade, a first spiral groove and a second spiral groove, wherein the shell is rotatably arranged on the shell, the left end of the bidirectional threaded pipe is inserted into the right end of the filter element pipeline, the right end face of the bidirectional threaded pipe is connected with the fan blade, the peripheral wall face of the bidirectional threaded pipe is provided with the first spiral groove and the second spiral groove which are opposite in rotation direction, and the right ends of the first spiral groove and the second spiral groove are communicated with;
the floating filter pipe is arranged on the outer side of the filter element pipeline in a left-right sliding mode, the left end of the floating filter pipe is connected with the inner peripheral wall of the shell in a sliding and sealing mode, and a dirt pushing plate with the outer end inclined to the left is arranged on the outer peripheral wall of the right half portion of the floating filter pipe;
a first cam block is rotatably arranged on the inner side wall of the right end of the floating filter pipe in the radial direction of the floating filter pipe, a second cam block is coaxially and rotatably arranged on the inner side of the first cam block, and the first cam block is connected with the second cam block through a torsion spring;
under the conventional state, the first cam block is located the arc hole and is located the rightmost end in arc hole, the second cam block is located the ring channel, first cam block with between the second cam block the torsional spring has the pretightning force.
2. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the first cam block and the second cam block are both oval, and the rotating axes of the first cam block and the second cam block are both positioned at one end of the long axis of the first cam block and the second cam block; the axis of rotation of the second cam block is located at the right end of the second cam block.
3. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the filter tube that floats is last the equipartition to have a plurality of filtration pores, the filter core pipeline sets up to hollow out construction, the inside of filter core pipeline is provided with the filter screen.
4. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the left end of the floating filter pipe is provided with a sealing flange, and the sealing flange is abutted to the inner peripheral wall of the shell.
5. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the filter core pipeline includes from a left side to the right side portion of being connected and installation department of permeating water, it is provided with a plurality of breach of permeating water along its axial extension to permeate water on the portion of permeating water, the arc hole sets up the installation department.
6. The environment-friendly farmland hydraulic engineering cleaning device according to claim 2, characterized in that: the improved filter tube is characterized in that a rotating shaft is arranged on the first cam block, a through hole penetrating through the outer surface of the first cam block is formed in the axis of the rotating shaft, the first cam block passes through the through hole and is rotatably installed on a fixed shaft of the floating filter tube, a rotating hole is formed in the second cam block, the second cam block passes through the rotating hole and is rotatably installed in the rotating shaft, the first cam block and the second cam block are respectively provided with a first blocking piece and a second blocking piece, the torsional spring is sleeved in the rotating shaft, and two ends of the torsional spring are respectively installed in the first blocking piece and the second blocking piece.
7. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the right end peripheral wall of the bidirectional threaded pipe is provided with a water guide hole extending along the radial direction, the right end part of the floating filter pipe is a shielding part, and the shielding part shields the arc-shaped hole in a conventional state.
8. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the collecting chamber is connected to the peripheral wall surface of the shell, a communication hole is formed in the peripheral wall of the shell and is communicated with the collecting chamber, and a sealing plug is arranged on the collecting chamber.
9. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the peripheral wall surface of the floating filter pipe is provided with an annular barb, and the right end of the communicating hole is provided with an elastic retainer ring.
10. The environment-friendly farmland hydraulic engineering cleaning device according to claim 1, characterized in that: the left end of the shell is provided with an end cover, and the end cover is provided with a pressure relief hole.
CN202110009112.3A 2021-01-05 2021-01-05 Environment-friendly farmland hydraulic engineering cleaning device Active CN112774303B (en)

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Application Number Priority Date Filing Date Title
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CN112774303B CN112774303B (en) 2022-03-08

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