CN114631475B

CN114631475B - Irrigation and pesticide spraying integrated farmland water conservancy equipment

Info

Publication number: CN114631475B
Application number: CN202210477849.2A
Authority: CN
Inventors: 武小云; 苗丽花; 赵龙江; 常君君; 王宁; 王斌
Original assignee: Individual
Current assignee: Ningjin County Yongsheng Manufacturing Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2023-07-21
Anticipated expiration: 2042-05-05
Also published as: CN114631475A

Abstract

The invention relates to the technical field of filtering devices, in particular to irrigation and pesticide spraying integrated farmland water conservancy equipment. An irrigation and pesticide spraying integrated farmland water conservancy device comprises a water delivery pipe, a liquid mixing pipe and a plurality of irrigation branch pipes. The filter device comprises a filter cartridge and a filter screen assembly; the filter cylinder is positioned in the middle of the water delivery pipe and is used for collecting first-level sundries; the filter screen component is arranged between the water delivery pipe and the filter cylinder and is used for filtering the second-level sundries entering the water delivery pipe and guiding the first-level sundries into the filter cylinder, and the particle size of the first-level sundries is larger than that of the second-level sundries. The filtering device of the irrigation and pesticide spraying integrated farmland water conservancy device can collect the collected sundries into the filter cylinder, prevent the sundries from adhering to the filter screen to influence the use effect of the filter screen, avoid frequent manual cleaning of the filter cylinder, and collect the sundries with different sizes by arranging the filter screen component.

Description

Irrigation and pesticide spraying integrated farmland water conservancy equipment

Technical Field

The invention relates to the technical field of filtering devices, in particular to irrigation and pesticide spraying integrated farmland water conservancy equipment.

Background

Most farmland irrigation aims to save groundwater resources and usually construct a ditch near the farmland, when the farmland needs to be irrigated, water in the ditch is directly extracted, and as most of water sources in the ditch come from drainage of rivers or rainwater, impurities such as sand, stones and soil can be extracted if the farmland is irrigated by directly extracting the water in the ditch, the impurities not only pollute the ecological environment of the farmland, but also block pipelines and the like in the extraction process, and therefore, a filtering device is mostly required to be arranged between an irrigation water pipe and a water pump.

Disclosure of Invention

After serious analysis, the invention discovers that if the existing filtering device is directly arranged in a pipeline, impurities easily block a filter screen, frequent cleaning is needed, and the flow of water is influenced when the garbage attached to the filter screen is large. The utility model provides an irrigation and pesticide spraying integrated farmland water conservancy device to solve the problem that current irrigation and pesticide spraying integrated farmland water conservancy device needs frequent clearance when using.

The invention relates to irrigation and pesticide spraying integrated farmland water conservancy equipment which adopts the following technical scheme:

an irrigation and pesticide spraying integrated farmland water conservancy device comprises a water delivery pipe, a liquid mixing pipe and a plurality of irrigation branch pipes; the water delivery pipe transmits water to the liquid mixing pipe through the water delivery pipe, and the liquid mixing pipe mixes the water and the liquid medicine and then transmits the mixed water and the liquid medicine to the plurality of irrigation branch pipes, so that the mixed water and the mixed liquid medicine are sprayed out of the plurality of irrigation branch pipes. The filter device comprises a filter cartridge and a filter screen assembly; the filter cylinder is arranged in the middle of the water delivery pipe and is coaxial with the water delivery pipe, the flowing direction of water is the front direction, the flowing direction of water is the rear direction, the front end of the water delivery pipe is a water inlet, the rear end of the water delivery pipe is a water outlet, the front end of the filter cylinder is a sundry inlet, the rear end of the filter cylinder is blocked, and the filter cylinder is used for collecting first-level sundries; the filter screen component is arranged between the water delivery pipe and the filter cylinder and is used for filtering the second-level sundries entering the water delivery pipe and guiding the first-level sundries into the filter cylinder, and the particle size of the first-level sundries is larger than that of the second-level sundries.

Further, the irrigation and pesticide spraying integrated farmland water conservancy device further comprises a partition plate, an adjusting mechanism and a connecting mechanism, wherein the partition plate is fixedly arranged on the outer side of the filter cylinder and equally divides the inside of the infusion tube into two parts, the filter screen assembly comprises four filter screens which are all in a half cone shape, and the big end of each filter screen faces forward and the small end faces backward; the four filter screens are arranged in pairs, two filter screen groups are arranged on two sides of the partition plate, in a first state, the distance between the two filter screens of one filter screen group is larger than that between the two filter screens of the other filter screen group, one filter screen group with small distance is arranged on the front side of one filter screen in the other filter screen group, and in each filter screen group, the filter holes on the filter screen on the front side are larger than those on the filter screen on the rear side; the peripheral wall of the filter cylinder is provided with side ports, and the small end of the filter screen positioned at the front side extends to the side ports on the filter cylinder in each filter screen group.

The adjusting mechanism is arranged in the filter cylinder and is used for enabling one filter screen group with small distance to move backwards simultaneously when the resistance received by one filter screen reaches a preset size to reach a second state, and enabling four filter screen exchange positions to enable the irrigation and pesticide spraying integrated farmland water conservancy equipment to maintain the first state again.

The connecting mechanism is used for promoting one filter screen group with small distance to move simultaneously in the process of adjusting from the first state to the second state.

Further, the four filter screens are a first filter screen, a second filter screen, a third filter screen and a fourth filter screen respectively; the partition board is horizontally arranged in the initial state, and the first filter screen and the second filter screen are in a group and are positioned above the partition board; the second filter screen is positioned at the rear side of the first filter screen, the third filter screen and the fourth filter screen are in a group and are positioned below the partition plate, the fourth filter screen is positioned at the rear side of the third filter screen, and in the first state, the distance between the first filter screen and the second filter screen is larger than the distance between the third filter screen and the fourth filter screen; the second filter screen and the fourth filter screen are made of flexible materials, and the first filter screen and the third filter screen are made of rigid materials; the second filter screen is configured to be pocket-shaped under the impact of water flow when water in the water pipe flows from front to back.

Further, the irrigation and pesticide spraying integrated farmland water conservancy device further comprises two mounting mechanisms, wherein the two mounting mechanisms are a first mounting mechanism and a second mounting mechanism respectively, each mounting mechanism comprises a first connecting semi-ring and a second connecting semi-ring, the second connecting semi-rings are slidably mounted on the first connecting semi-rings along the front-back direction, and a tension spring is arranged between the first connecting semi-rings and the second connecting semi-rings; the small end of the second filter screen is connected with the first connecting semi-ring of the first installation mechanism, the large end of the second filter screen is connected with the second connecting semi-ring of the first installation mechanism, and in a first state, the second connecting semi-ring on the second filter screen is positioned at one side close to the first connecting semi-ring under the pulling of the tension spring; the small end of the fourth filter screen is connected with the first connecting semi-ring of the second installation mechanism, the large end of the fourth filter screen is connected with the second connecting semi-ring of the second installation mechanism, and in the first state, the second connecting semi-ring on the third filter screen is located at one side far away from the first connecting semi-ring under the action of the connecting mechanism.

Further, a supporting rod is arranged at the front side of each first connecting semi-ring, a strip-shaped through hole is formed in the supporting rod, the second connecting semi-ring penetrates through the strip-shaped through hole and is slidably arranged along the strip-shaped through hole, and the second connecting semi-ring of the first mounting mechanism is positioned at the rear end of the strip-shaped through hole in the first state; one end of the second connecting semi-ring is connected with a connecting rod, the front end of the connecting rod is provided with a stop block, the connecting rod connected to the second connecting semi-ring of the first mounting mechanism penetrates through the third filter screen, in an initial state, the stop block of the connecting rod mounted on the second connecting semi-ring of the first mounting mechanism is propped against the front end face of the third filter screen, the connecting rod connected to the second connecting semi-ring of the second mounting mechanism penetrates through the first filter screen, and in an initial state, the stop block of the connecting rod mounted on the second connecting semi-ring of the second mounting mechanism is far away from the first filter screen; the two connecting mechanisms are respectively a first connecting mechanism and a second connecting mechanism, the first connecting mechanism is arranged between the first filter screen and the second filter screen and is used for connecting the second filter screen with the first filter screen when the distance between the second filter screen and the first filter screen reaches a preset size, and the second connecting mechanism is arranged between the third filter screen and the fourth filter screen and is used for connecting the third filter screen with the fourth filter screen when the distance between the third filter screen and the fourth filter screen reaches a preset size; the irrigation and pesticide spraying integrated farmland water conservancy device further comprises a limiting mechanism, wherein the limiting mechanism is used for enabling the four filter screens to be kept at the initial positions in the first state.

Further, a straight clamping groove is formed in the inner peripheral wall of the water conveying pipe, the straight clamping groove extends along the front-rear direction, a first spring telescopic column is mounted on the second connecting semi-ring of the first mounting mechanism, and in a first state, the first spring telescopic column is located at the front end of the straight clamping groove.

The adjusting mechanism comprises a driving assembly, a straight groove, a first half ring groove, a second half ring groove, a first spiral groove and a second spiral groove, wherein the straight groove, the first half ring groove, the second half ring groove, the first spiral groove and the second spiral groove are formed in the inner peripheral wall of the water pipe; the driving assembly is used for driving the filter cartridge to rotate around the axis of the filter cartridge in a clockwise direction seen from front to back; the straight groove extends along the front-back direction and is arranged at the bottom of the water delivery pipe, the limiting mechanism comprises a first protruding block, the first protruding block is arranged in the straight groove, a second spring telescopic column is arranged on a second connecting semi-ring of the second installation mechanism, a third spring telescopic column is arranged on a third filter screen, the second spring telescopic column and the third spring telescopic column are inserted into the straight groove in the first state, and the second spring telescopic column is propped against the front side surface of the first protruding block; the first half ring groove and the second half ring groove are respectively arranged at the left side and the right side of the filter cylinder as seen from front to back, the first half ring groove is positioned at the rear side of the second half ring groove, the lower end of the first half ring groove and the lower end of the second half ring groove are respectively communicated with the two ends of the straight groove, the rear end of the first straight clamping groove is communicated with the first half ring groove, and the first spring telescopic column is slidably arranged along the first half ring groove; the limiting mechanism further comprises a second lug and a fourth spring telescopic column, the second lug is arranged in the second half ring groove, the fourth spring telescopic column is arranged on the first filter screen and inserted into the second half ring groove, and the second lug and the fourth spring telescopic column are used for limiting the rotation of the first filter screen in the second half ring groove in an initial state; the first spiral groove and the second spiral groove are both positioned between the first half ring groove and the second half ring groove, the two ends of the first spiral groove and the two ends of the second spiral groove are both communicated with the straight groove, when the first spring telescopic column moves to the junction of the straight clamping groove and the first half ring groove, the second spring telescopic column moves to the junction of the first half ring groove and the straight groove, and the third spring telescopic column moves to the junction of the straight groove and the first spiral groove.

Further, the connecting mechanism comprises two connecting components, wherein the two connecting components are a first connecting component and a second connecting component respectively, each connecting component comprises a hinge ball and a ball groove, the hinge ball of the first connecting component of the first connecting mechanism is connected with a first connecting semi-ring of the first mounting mechanism through a connecting rod, and the hinge groove of the first connecting component of the first connecting mechanism is arranged at the rear side of the first filter screen; the hinge ball of the second connecting component of the first connecting mechanism is connected to the second connecting semi-ring of the first mounting mechanism through the connecting rod, the hinge groove of the second connecting component of the first connecting mechanism is arranged at the rear side of the first filter screen, and when the hinge ball of the first connecting component of the first connecting mechanism is inserted into the ball groove of the first connecting component of the first connecting mechanism, the hinge ball of the second connecting component of the first connecting mechanism is inserted into the ball groove of the second connecting component of the first connecting mechanism.

The hinge ball of the first connecting component of the second connecting mechanism is connected to the first connecting semi-ring of the second mounting mechanism through a connecting rod, and the hinge groove of the first connecting component of the second connecting mechanism is arranged at the rear side of the third filter screen so that the third filter screen is connected with the fourth filter screen when the hinge ball of the first connecting component of the second connecting mechanism is inserted into the ball groove of the first connecting component of the second connecting mechanism; the hinge ball of the second connecting component of the second connecting mechanism is connected to the second connecting semi-ring of the second mounting mechanism through a connecting rod, the hinge groove of the second connecting component of the second connecting mechanism is arranged at the rear side of the third filter screen, and when the hinge ball of the first connecting component of the second connecting mechanism is inserted into the ball groove of the first connecting component of the second connecting mechanism, the hinge ball of the second connecting component of the second connecting mechanism is inserted into the ball groove of the second connecting component of the second connecting mechanism.

Further, the irrigation and pesticide spraying integrated farmland water conservancy device further comprises two support shells, the two support shells are oppositely arranged relative to the filter cylinder, the two support shells are a first support shell and a second support shell respectively, each support shell is arranged on the outer side of the filter cylinder and extends along the front-back direction, an opening is formed in each support shell, a baffle ring is arranged at the rear end of the opening, a grid baffle plate is arranged at the opening, the grid baffle plate divides the opening into a first opening and a second opening which are sequentially arranged front and back, and the first opening and the side opening are correspondingly arranged in the initial state; the first filter screen is arranged on the outer side of the first support shell, and the small end of the first filter screen is propped against the rear end face of the grid baffle plate on the first support shell in an initial state; the third filter screen is arranged on the outer side of the second support shell, and the small end of the third filter screen is propped against the rear end face of the grid baffle plate of the second support shell in an initial state; the irrigation and pesticide spraying integrated farmland water conservancy device further comprises two push rods, each push rod is arranged on one first connecting semi-ring and used for pushing the supporting shell forwards when a preset position is reached between two filter screens on the same side, and the second opening corresponds to the side opening.

Further, blocking plates are further arranged on two sides of the front end of the first connecting semi-ring and used for blocking sundries collected in the second filter screen and the fourth filter screen from falling.

Further, the drive assembly is a propeller disposed at a front end of the filter cartridge, the propeller being configured to always have a tendency to rotate in a clockwise direction when viewed from the front to the rear upon impact by a water flow.

The beneficial effects of the invention are as follows: the filtering device of the irrigation and pesticide spraying integrated farmland water conservancy device can collect the collected sundries into the filter cylinder, prevent the sundries from adhering to the filter screen to influence the use effect of the filter screen, avoid frequent manual cleaning of the filter cylinder, and collect the sundries with different sizes by arranging the filter screen component.

Further, through setting up adjustment mechanism, can make earlier that a filter screen group that the distance is less moves backward simultaneously when the resistance that one of them filter screen received reaches the default size, reaches the second state, later makes four filter screen exchange positions again, makes an irrigation and spouts medicine integration irrigation and water conservancy equipment keep the first state again. On one hand, impurities entering the filter cylinder can be accumulated more uniformly, and on the other hand, impurities attached to the outer side of the filter cylinder are washed, so that the manual cleaning period of the filter cylinder is further prolonged.

Further, be flexible filter screen through setting up second filter screen and fourth filter screen for it can form the arc pocket form when keeping away from with the front side filter screen, can be favorable to collecting debris more, and be convenient for the next motion of two follow-up filter screens, avoid debris clamp between filter screen and filter cartridge.

Furthermore, the filtering device provided by the invention can be recycled, and the cleaning period is long.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic structural view of an embodiment of an irrigation and pesticide spraying integrated farmland irrigation device of the present invention;

fig. 2 is a front-to-rear view of a filtering apparatus of an embodiment of an irrigation and spray integrated farmland irrigation and water conservancy apparatus according to the present invention in a first state;

FIG. 3 is a cross-sectional view taken along the A-A plane of FIG. 2;

FIG. 4 is an exploded view of the interior of a filter cartridge of an embodiment of an irrigation and chemical spray integrated farmland irrigation and water conservancy device of the present invention;

FIG. 5 is a front-to-back view of a filter cartridge of an embodiment of an irrigation and chemical spray integrated farmland irrigation and water conservancy device of the present invention;

FIG. 6 is a cross-sectional view of the B-B plane of FIG. 5;

FIG. 7 is a cross-sectional view of the C-C plane of FIG. 5;

FIG. 8 is a front-to-rear view of a filter device of an embodiment of an irrigation and chemical spray integrated farmland irrigation and water conservancy apparatus according to the present invention in a second state;

FIG. 9 is a cross-sectional view of the D-D plane of FIG. 8;

fig. 10 is an exploded view of a mating view of a filter screen and a mounting mechanism of an embodiment of an irrigation and spray integrated farmland irrigation and water conservancy device of the present invention.

In the figure: 100. a water pump; 300. a water pipe; 301. a second half ring groove; 302. a straight groove; 303. a first bump; 304. a first half ring groove; 305. a second helical groove; 306. a first helical groove; 307. a straight clamping groove; 400. a partition plate; 401. a mounting groove; 500. a propeller; 600. a filter cartridge; 601. a side port; 700. a first filter screen; 800. a second filter screen; 900. a third filter screen; 901. a ball groove; 110. a fourth filter screen; 111. a first connecting half ring; 112. a long-strip-shaped through hole; 113. a hinged ball; 114. a push rod; 115. a second connecting half ring; 116. a blocking plate; 117. a slide bar; 118. a stop block; 119. a connecting rod; 120. a first support case; 121. a baffle ring; 122. a grid baffle; 123. a second support case; 124. a first spring telescoping post; 125. a second spring telescoping post; 126. a third spring telescoping post; 127. a fourth spring telescoping post; 130. a liquid mixing pipe; 140. a liquid medicine storage barrel; 150. a liquid medicine tube; 160. irrigation is carried out.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

An embodiment of an irrigation and spray integrated farmland hydraulic device of the present invention, as shown in fig. 1 to 10, includes a water pump 100, a water pipe 300, a liquid mixing pipe 130 and a plurality of irrigation branch pipes 160. The water pump 100 is used for pumping water and transmitting the pumped water to the mixing pipe 130 through the water pipe 300, and each irrigation branch pipe 160 is communicated with the mixing pipe 130, so that the water in the mixing pipe 130 is discharged through a plurality of irrigation branch pipes 160. The irrigation and pesticide spraying integrated farmland water conservancy device further comprises a pesticide storage barrel 140, a pesticide pipe 150 and a pesticide drawing pump. One end of the liquid medicine tube 150 extends into the liquid medicine storage barrel 140, the other end is communicated with the liquid mixing tube 130, and the liquid medicine pumping pump is used for conveying liquid medicine in the liquid medicine storage barrel 140 to the liquid medicine tube 150. The irrigation and pesticide spraying integrated farmland water conservancy device further comprises a filtering device, and the filtering device comprises a filter cartridge 600 and a filter screen assembly. The filter cartridge 600 is positioned in the middle of the water delivery pipe 300 and is coaxially arranged with the water delivery pipe 300, the water flowing direction is the front direction, the water flowing direction is the rear direction, the front end of the water delivery pipe 300 is a water inlet, the rear end of the water delivery pipe 300 is a water outlet, the front end of the filter cartridge 600 is a sundry inlet, the rear end of the filter cartridge 600 is blocked, and the filter cartridge 600 is used for collecting first-level sundries; the filter screen assembly is disposed between the water pipe 300 and the filter cartridge 600, and is used for filtering the second-level sundries entering the water pipe 300, guiding the first-level sundries into the filter cartridge 600, and purifying the water entering the liquid mixing pipe 130, wherein the particle size of the first-level sundries is larger than that of the second-level sundries.

In this embodiment, an irrigation and chemical spraying integrated farmland water conservancy device further comprises a partition 400, an adjusting mechanism and a connecting mechanism. The baffle 400 is fixedly installed on the outer side of the filter cartridge 600, specifically, an installation groove 401 is formed in the middle of the baffle 400, the filter cartridge 600 is positioned in the installation groove 401, the baffle 400 equally divides the inside of the infusion tube into two parts, the filter screen assembly comprises four filter screens, each of the four filter screens is in a half cone shape, the large end of each filter screen faces forward, and the small end of each filter screen faces backward; four filter screens are arranged on two sides of the partition 400 respectively, in the first state, the distance between the two filter screens of one filter screen group is larger than that between the two filter screens of the other filter screen group, one filter screen group with smaller distance is arranged on the front side of one filter screen in the other filter screen group, and in each filter screen group, the filter holes on the filter screen positioned on the front side are larger than those on the filter screen positioned on the rear side. Side ports 601 are provided in the peripheral wall of the filter cartridge 600, and in each screen pack, the small end of the screen on the front side extends to the side ports 601 on the filter cartridge 600.

The adjustment mechanism is disposed in the filter cartridge 600, and is configured to enable a filter screen group with a smaller distance to move backward simultaneously when a resistance applied to one of the filter screens reaches a preset size, so as to reach a second state, and then enable the four filter screens to exchange positions, so that an irrigation and pesticide spraying integrated farmland hydraulic device is kept in the first state again. When the water in the water pipe 300 flows from front to back, the sundries with larger particle size are blocked by the front filter screen, the sundries with smaller particle size are blocked by the rear sundries, and the resistance of the two filter screens with smaller distance to the water is integrally larger than the resistance of the two filter screens with larger distance to the water, so that the pressure of the water at the rear sides of the two filter screens with smaller distance is smaller, and the water flows from the place with larger water pressure to the place with smaller water pressure. When the adjusting mechanism drives one filter screen group with smaller distance to move backwards to reach the second state, water can have a trend of flowing between two filter screens with smaller distance under the blocking of two filter screens with smaller distance, and a recoil effect is formed with the direction of water flow in the first state, so that impurities entering the filter cartridge 600 can be accumulated more uniformly, impurities attached to the outer side of the filter cartridge 600 are washed, and the manual cleaning period of the filter cartridge 600 is increased.

The connecting mechanism is used for enabling two filter screens of one filter screen group with smaller distance to move simultaneously in the process of adjusting from the first state to the second state.

In the present embodiment, as shown in fig. 3, four screens are a first screen 700, a second screen 800, a third screen 900, and a fourth screen 110, respectively. The partition 400 is horizontally disposed in the initial state, the first filter screen 700 and the second filter screen 800 are in a group above the partition 400, the second filter screen 800 is at the rear side of the first filter screen 700, the third filter screen 900 and the fourth filter screen 110 are in a group below the partition 400, the fourth filter screen 110 is at the rear side of the third filter screen 900, and in the first state, the distance between the first filter screen 700 and the second filter screen 800 is greater than the distance between the third filter screen 900 and the fourth filter screen 110. The second filter 800 and the fourth filter 110 are made of flexible materials, and the first filter 700 and the third filter 900 are made of rigid materials. The second screen 800 is configured to be in a pocket shape under the impact of water flow when the water in the water pipe 300 flows from front to rear, and to pocket the caught foreign objects.

In this embodiment, an irrigation and pesticide spraying integrated farmland water conservancy device further includes two installation mechanisms, wherein the two installation mechanisms are a first installation mechanism and a second installation mechanism respectively, each installation mechanism includes a first connecting semi-ring 111 and a second connecting semi-ring 115, the second connecting semi-ring 115 is slidably installed on the first connecting semi-ring 111 along the front-back direction, and a tension spring for urging the second connecting semi-ring 115 to approach the first connecting semi-ring 111 is arranged between the first connecting semi-ring 111 and the second connecting semi-ring 115. The small end of the second filter screen 800 is connected with the first connecting semi-ring 111 of the first installation mechanism, the large end of the second filter screen 800 is connected with the second connecting semi-ring 115 of the first installation mechanism, and in the first state, the second connecting semi-ring 115 on the second filter screen 800 is positioned at one side close to the first connecting semi-ring 111 under the pulling of a tension spring; the small end of the fourth filter screen 110 is connected with the first connecting semi-ring 111 of the second installation mechanism, and the large end of the fourth filter screen 110 is connected with the second connecting semi-ring 115 of the second installation mechanism, in the first state, since the third filter screen 900 and the fourth filter screen 110 are connected through the connecting mechanism, the tension springs are stretched, and the second connecting semi-ring 115 on the third filter screen 900 is located at one side far away from the first connecting semi-ring 111 of the second installation mechanism.

In this embodiment, a support rod is mounted on the front side of each first connecting half ring 111, a strip-shaped through hole 112 is provided on the support rod, a second connecting half ring 115 penetrates through the strip-shaped through hole 112, a tension spring is located at the rear side of the second connecting half ring 115, one end of the tension spring is connected with the second connecting half ring 115, the other end of the tension spring is connected with the rear end of the strip-shaped through hole 112, and the second connecting half ring 115 of the first mounting mechanism is located at the rear end of the strip-shaped through hole 112 in the first state. One end of the second connecting half ring 115 is connected with a connecting rod 119, a stop block 118 is installed at the front end of the connecting rod 119, the connecting rod 119 connected to the second connecting half ring 115 of the first installation mechanism penetrates through the third filter screen 900, in an initial state, the stop block 118 of the connecting rod 119 installed on the second connecting half ring 115 of the first installation mechanism abuts against the front end face of the third filter screen 900, the connecting rod 119 connected to the second connecting half ring 115 of the second installation mechanism penetrates through the first filter screen 700, and in an initial state, the stop block 118 of the connecting rod 119 installed on the second connecting half ring 115 of the second installation mechanism is far away from the first filter screen 700. Specifically, one end of the first connection half ring 111 is connected with a sliding rod 117 extending in the front-rear direction, and the connection rod 119 is slidable along a corresponding one of the sliding rods 117. The two connecting mechanisms are a first connecting mechanism and a second connecting mechanism, the first connecting mechanism is arranged between the first filter screen 700 and the second filter screen 800 and used for enabling the second filter screen 800 to be connected with the first filter screen 700 when the distance between the second filter screen 800 and the first filter screen 700 reaches a preset size, and the second connecting mechanism is arranged between the third filter screen 900 and the fourth filter screen 110 and used for enabling the third filter screen 900 to be connected with the fourth filter screen 110 when the distance between the third filter screen 900 and the fourth filter screen 110 reaches the preset size. The irrigation and pesticide spraying integrated farmland water conservancy device further comprises a limiting mechanism, wherein the limiting mechanism is used for enabling the four filter screens to be kept at the initial position in the first state, so that the four filter screens are kept at the initial position in the first state.

In this embodiment, a straight clamping groove 307 is provided on the inner peripheral wall of the water pipe 300, the straight clamping groove 307 extends along the front-rear direction, a first spring expansion post 124 is mounted on the second connection semi-ring 115 of the first mounting mechanism, and in the first state, the first spring expansion post 124 is located at the front end of the straight clamping groove 307.

The adjusting mechanism comprises a driving assembly, a straight groove 302, a first half ring groove 304, a second half ring groove 301, a first spiral groove 306 and a second spiral groove 305 which are arranged on the inner peripheral wall of the water pipe 300. The driving assembly is used for driving the filter cartridge 600 to rotate around the axis thereof in a clockwise direction as seen from front to back, and the baffle 400 is fixedly connected with the filter cartridge 600, so that the baffle 400 is driven to rotate synchronously when the filter cartridge 600 rotates. The straight groove 302 extends along the front-back direction and is arranged at the bottom of the water pipe 300, the limiting mechanism comprises a first protruding block 303, the first protruding block 303 is arranged in the straight groove 302, a second spring telescopic column 125 is arranged on a second connecting semi-ring 115 of the second installation mechanism, a third spring telescopic column 126 is arranged on a third filter screen 900, the second spring telescopic column 125 and the third spring telescopic column 126 in the first state are inserted into the straight groove 302, the second spring telescopic column 125 is abutted against the front side surface of the first protruding block 303, when the second filter screen 800 receives a backward acting force exceeding the resistance of the first protruding block 303 to the second spring telescopic column 125, the second connecting semi-ring 115 of the first installation mechanism starts to drive the third filter screen 900 to move backward through the connecting rod 119 and the stop 118, the third filter screen 900 drives the fourth filter screen 110 to move synchronously through the second connecting mechanism, and when the second spring telescopic column 125 on the second connecting semi-ring 115 of the second installation mechanism and the third spring telescopic column 126 on the third filter screen 900 cross the straight groove 302 under the action of the water flow when the first protruding block 303 receives the backward acting force.

The first half ring groove 304 and the second half ring groove 301 are respectively disposed at left and right sides of the filter cartridge 600 as viewed from front to back, the first half ring groove 304 is disposed at a rear side of the second half ring groove 301, and a lower end of the first half ring groove 304 and a lower end of the second half ring groove 301 are respectively communicated with both ends of the straight groove 302, a rear end of the straight clamping groove 307 is communicated with the first half ring groove 304, and the first spring expansion post 124 is slidably disposed along the first half ring groove 304. The limiting mechanism further comprises a second protruding block and a fourth spring expansion column 127, the second protruding block is arranged in the second half ring groove 301, the fourth spring expansion column 127 is installed on the first filter screen 700 and inserted into the second half ring groove 301, and the second protruding block and the fourth spring expansion column 127 are used for limiting the rotation of the first filter screen 700 in the second half ring groove 301 in an initial state, so that the filter cartridge 600, the partition 400 and the four filter screens cannot rotate. The first spiral groove 306 and the second spiral groove 305 are each located between the first half ring groove 304 and the second half ring groove 301, and both ends of the first spiral groove 306 and both ends of the second spiral groove 305 are in communication with the straight groove 302, specifically, the first spiral groove 306 extends forward from the bottom of the filter cartridge 600 in a clockwise direction as viewed from the front to the back to the top of the filter cartridge 600, and the second spiral groove 305 extends forward from the top of the filter cartridge 600 in a clockwise direction as viewed from the front to the back to the bottom of the filter cartridge 600. When the first spring expansion post 124 moves to the junction between the straight clamping groove 307 and the first half ring groove 304, the second spring expansion post 125 moves to the junction between the first half ring groove 304 and the straight groove 302, and the third spring expansion post 126 moves to the junction between the straight groove 302 and the first spiral groove 306 (as shown in fig. 9, this state is the second state). At this time, the filter cartridge 600 and the partition 400 may rotate, the first filter screen 700 rotates along the second half ring groove 301 to the home position of the third filter screen 900 in the first state under the action of the fourth spring expansion column 127, the third filter screen 900 rotates along the first spiral groove 306 to the home position of the first filter screen 700 in the first state through the third spring expansion column 126, the second filter screen 800 rotates along the second spiral groove 305 to the home position of the fourth filter screen 110 in the first state through the first spring expansion column 124, and the fourth filter screen 110 rotates along the first half ring groove 304 to the home position of the second filter screen 800 in the first state through the second spring expansion column 125.

In this embodiment, the connection mechanism includes two connection assemblies, which are a first connection assembly and a second connection assembly, respectively, each connection assembly includes a hinge ball 113 and a ball groove 901, the hinge ball 113 of the first connection assembly of the first connection mechanism is connected to the first connection half ring 111 of the first installation mechanism through a connecting rod, and the hinge groove of the first connection assembly of the first connection mechanism is disposed at the rear side of the first filter screen 700, so that the first filter screen 700 and the second filter screen 800 are connected when the hinge ball 113 of the first connection assembly of the first connection mechanism is inserted into the ball groove 901 of the first connection assembly of the first connection mechanism. The hinge ball 113 of the second connection assembly of the first connection mechanism is connected to the second connection half ring 115 of the first installation mechanism through a connecting rod, the hinge groove of the second connection assembly of the first connection mechanism is provided at the rear side of the first filter screen 700, and when the hinge ball 113 of the first connection assembly of the first connection mechanism is inserted into the ball groove 901 of the first connection assembly of the first connection mechanism, the hinge ball 113 of the second connection assembly of the first connection mechanism is inserted into the ball groove 901 of the second connection assembly of the first connection mechanism. In the first state, the hinge balls 113 and the ball grooves 901 of the two connection assemblies of the first connection mechanism are both in a separated state.

The hinge ball 113 of the first connection assembly of the second connection mechanism is connected to the first connection half ring 111 of the second installation mechanism by a link, and the hinge groove of the first connection assembly of the second connection mechanism is provided at the rear side of the third filter screen 900 so that the third filter screen 900 is connected with the fourth filter screen 110 when the hinge ball 113 of the first connection assembly of the second connection mechanism is inserted into the ball groove 901 of the first connection assembly of the second connection mechanism. The hinge ball 113 of the second connection assembly of the second connection mechanism is connected to the second connection half ring 115 of the second installation mechanism through a connecting rod, the hinge groove of the second connection assembly of the second connection mechanism is provided at the rear side of the third filter screen 900, and when the hinge ball 113 of the first connection assembly of the second connection mechanism is inserted into the ball groove 901 of the first connection assembly of the second connection mechanism, the hinge ball 113 of the second connection assembly of the second connection mechanism is inserted into the ball groove 901 of the second connection assembly of the second connection mechanism. In the first state, the hinge ball 113 and the ball groove 901 of each connection assembly of the second connection mechanism are in a connected state. The third filter 900 and the fourth filter 110 move synchronously when the third filter 900 and the fourth filter 110 move from the first state to the second state. When the irrigation and pesticide spraying integrated farmland water conservancy device of the embodiment starts to change from the second state, the hinge ball 113 and the ball groove 901 of each connecting component of the second connecting mechanism are separated under the action of stress, and the second spring expansion post 125 on the second connecting semi-ring 115 of the second mounting mechanism cannot move back and forth due to the limitation of the first semi-ring groove 304, and the tension spring corresponding to the fourth filter screen 110 is in a stretched state, so the first connecting semi-ring 111 of the second mounting mechanism moves to one side close to the second connecting semi-ring 115 of the second mounting mechanism under the tension of the tension spring, and further the fourth filter screen 110 forms a pocket shape.

In this embodiment, as shown in fig. 3, an irrigation and pesticide spraying integrated farmland water conservancy device further includes two support shells, the two support shells are oppositely disposed with respect to the filter cartridge 600, the two support shells are a first support shell 120 and a second support shell 123 respectively, each support shell is disposed at the outer side of the filter cartridge 600 and extends along the front-back direction, an opening is disposed on each support shell, a baffle ring 121 is disposed at the rear end of the opening, a grid baffle 122 is disposed at the opening, the grid baffle 122 divides the opening into a first opening and a second opening which are sequentially disposed front and back, and the first opening and the side opening 601 are correspondingly disposed in an initial state; the first filter screen 700 is disposed on the outer side of the first support casing 120, in an initial state, a small end of the first filter screen 700 abuts against a rear end surface of the grid baffle 122 on the first support casing 120, and in a first state, garbage collected by the first filter screen 700 enters the filter cartridge 600 through the first opening and the side opening 601. The third filter screen 900 is disposed at the outer side of the second supporting shell 123, in which the small end of the third filter screen 900 abuts against the rear end surface of the grid baffle 122 of the second supporting shell 123 in the initial state, and the garbage collected by the third filter screen 900 enters the filter cartridge 600 through the first opening and the side opening 601 in the first state. The irrigation and pesticide spraying integrated farmland water conservancy device further comprises two push rods 114, wherein each push rod 114 is mounted on one first connecting semi-ring 111 and is used for pushing the supporting shell forwards when a preset position is reached between two filter screens on the same side, and the second opening corresponds to the side opening 601, so that sundries collected by the fourth filter screen 110 are conveniently discharged into the filter cartridge 600 through the second opening when the second filter screen 800 moves to the original position of the fourth filter screen 110 in the first state.

In the present embodiment, blocking plates 116 are further provided at both sides of the front end of the first connection half ring 111, and the blocking plates 116 are used to block the foreign objects collected in the second and fourth screens 800 and 110 from falling. Specifically, the blocking plate 116 has both ends fixedly connected to the first connection half ring 111 and has a V-shaped groove with a tip end facing backward in the middle.

In the present embodiment, the driving assembly is a propeller 500, and the propeller 500 is disposed at the front end of the filter cartridge 600, and the propeller 500 is configured to always have a tendency to rotate in a clockwise direction as viewed from the front to the rear when being impacted by water flow.

As shown in fig. 1, when irrigation is performed on the farmland, water in the river is pumped by the water pump 100, is transported to the mixing pipe 130 through the water pipe 300, and the water introduced into the mixing pipe 130 is mixed with the chemical liquid pumped from the chemical liquid storage tub 140, and is then sprayed from each irrigation branch pipe 160 to perform irrigation on the farmland.

As shown in fig. 3, the water flow is from right to left in the water pipe 300, and the flowing water always gives a clockwise force (seen from right to left in fig. 3) to the propeller 500. The first-stage foreign matters having larger particle sizes are blocked by the first filter screen 700 and the third filter screen 900, and then enter the filter cartridge 600 from the side openings 601 through the first filter screen 700 and the third filter screen 900, but since the first filter screen 700 and the second filter screen 800 above the partition 400 in the initial state are far away from each other, the third filter screen 900 below the partition 400 is connected with the fourth filter screen 110 under the action of the second connecting mechanism, the second foreign matters having smaller particle sizes filtered by the first filter screen 700 are blocked by the second filter screen 800, and the second filter screen 800 forms an arc pocket shape under the resistance of water and the second foreign matters. When the second filter screen 800 is stacked with more sundries, the second filter screen 800 receives a larger water impact force, so that the second connecting ring 115 on the second filter screen 800 pulls the third filter screen 900 to move backward through the connecting rod 119 and the stop block 118, the second spring expansion column 125 on the fourth filter screen 110 and the third spring expansion column 126 on the third filter screen 900 contract, and further move backward along the straight groove 302 after passing over the first bump 303, at this time, the first spring expansion column 124 slides along the straight clamping groove 307 to the junction of the straight clamping groove 307 and the second spiral groove 305, the second spring expansion column 125 on the fourth filter screen 110 moves to the junction of the straight groove 302 and the first spiral groove 304, and the third spring expansion column 126 on the third filter screen 900 moves to the junction of the straight groove 302 and the first spiral groove 306, at this time, all the four filter screens can move along the corresponding grooves (as shown in fig. 9).

Specifically, since the propeller 500 always has a clockwise rotation tendency under the impact of the water flow, the second spring telescoping post 125 and the third spring telescoping post 126 are both out of limit, so that the propeller 500 starts to drive the filter cartridge 600 and the baffle 400 to rotate clockwise, the third filter screen 900 moves to the home position of the first filter screen 700 along the first spiral groove 306, the second filter screen 800 moves to the home position of the fourth filter screen 110 along the second spiral groove 305, the first filter screen 700 rotates to the home position of the third filter screen 900 along the second semi-circular groove 301 through the fourth spring telescoping post 127, and the fourth filter screen 110 rotates to the home position of the second filter screen 800 along the first semi-circular groove 304 through the third spring telescoping post 126. In this process, the second connection mechanism is separated under the action of stress, so the third filter screen 900 and the fourth filter screen 110 can move independently, and finally the second filter screen 800 and the first filter screen 700 are in a close state, and the third filter screen 900 and the fourth filter screen 110 are in a far state.

Because the third filter screen 900 and the fourth filter screen 110 are close to each other in the initial state, less water passes through the third filter screen 900 and the fourth filter screen 110, and less water pressure is applied to the rear of the third filter screen 900, so that the water passing through the first filter screen 700 flows downward, and when the water flows downward, some impurities are attached to the outer surface of the upper half of the filter cartridge 600, and impurities in the filter cartridge 600 are accumulated on the inner wall of the lower half of the filter cartridge 600, so that a slope surface with high rear and low front is formed. When in the state shown in fig. 9, the lower half part of the front end of the filter cartridge 600 is not blocked by the filter screen, and the water flow is increased, so that the water flow can back flush the inner wall of the lower half part of the filter cartridge 600 and the outer surface of the upper half part of the filter cartridge 600, thereby avoiding that the second filter screen 800 scrapes off sundries on the outer wall of the filter cartridge 600 in the process of moving forward along the filter cartridge 600, facilitating better collection of sundries attached to the filter cartridge 600, and simultaneously back flushing sundries in the filter cartridge 600, so that sundries in the filter cartridge 600 are more uniformly accumulated, and the cleaning period of the filtering device of the irrigation and pesticide spraying integrated farmland water conservancy device of the embodiment is prolonged.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. An irrigation and pesticide spraying integrated farmland water conservancy device comprises a water delivery pipe, a liquid mixing pipe and a plurality of irrigation branch pipes; the water delivery pipe is used for delivering water to the liquid mixing pipe, the liquid mixing pipe is used for mixing the water and the liquid medicine and then delivering the mixed water and the liquid medicine to the plurality of irrigation branch pipes, and the mixed water and the mixed liquid medicine are sprayed out of the plurality of irrigation branch pipes; the method is characterized in that: the filter device comprises a filter cartridge and a filter screen assembly; the filter cylinder is arranged in the middle of the water delivery pipe and is coaxial with the water delivery pipe, the flowing direction of water is the front direction, the flowing direction of water is the rear direction, the front end of the water delivery pipe is a water inlet, the rear end of the water delivery pipe is a water outlet, the front end of the filter cylinder is a sundry inlet, the rear end of the filter cylinder is blocked, and the filter cylinder is used for collecting first-level sundries; the filter screen component is arranged between the water delivery pipe and the filter cylinder and is used for filtering secondary sundries entering the water delivery pipe and guiding primary sundries into the filter cylinder, and the particle size of the primary sundries is larger than that of the secondary sundries;

The irrigation and pesticide spraying integrated farmland water conservancy device also comprises a baffle plate, an adjusting mechanism and a connecting mechanism, wherein the baffle plate is fixedly arranged on the outer side of the filter cylinder and equally divides the inside of the infusion tube into two parts, the filter screen assembly comprises four filter screens which are all in a half cone shape, and the big end of each filter screen faces forward and the small end faces backward; the four filter screens are arranged in pairs, two filter screen groups are arranged on two sides of the partition plate, in a first state, the distance between the two filter screens of one filter screen group is larger than that between the two filter screens of the other filter screen group, one filter screen group with small distance is arranged on the front side of one filter screen in the other filter screen group, and in each filter screen group, the filter holes on the filter screen on the front side are larger than those on the filter screen on the rear side; the peripheral wall of the filter cylinder is provided with a side port, and the small end of the filter screen positioned at the front side in each filter screen group extends to the side port on the filter cylinder;

the adjusting mechanism is arranged in the filter cylinder and is used for enabling one filter screen group with a small distance to move backwards at the same time when the resistance of one filter screen reaches a preset size to reach a second state, and enabling four filter screen exchange positions to enable the irrigation and pesticide spraying integrated farmland water conservancy equipment to be kept in the first state again;

The connecting mechanism is used for promoting one filter screen group with small distance to move simultaneously in the process of adjusting from the first state to the second state;

the four filter screens are a first filter screen, a second filter screen, a third filter screen and a fourth filter screen respectively; the partition board is horizontally arranged in the initial state, and the first filter screen and the second filter screen are in a group and are positioned above the partition board; the second filter screen is positioned at the rear side of the first filter screen, the third filter screen and the fourth filter screen are in a group and are positioned below the partition plate, the fourth filter screen is positioned at the rear side of the third filter screen, and in the first state, the distance between the first filter screen and the second filter screen is larger than the distance between the third filter screen and the fourth filter screen; the second filter screen and the fourth filter screen are made of flexible materials, and the first filter screen and the third filter screen are made of rigid materials; the second filter screen is configured to be in a pocket shape under the impact of water flow when the water in the water pipe flows from front to back;

the irrigation and pesticide spraying integrated farmland water conservancy device further comprises two mounting mechanisms, wherein the two mounting mechanisms are a first mounting mechanism and a second mounting mechanism respectively, each mounting mechanism comprises a first connecting semi-ring and a second connecting semi-ring, the second connecting semi-rings are slidably mounted on the first connecting semi-rings along the front-back direction, and a tension spring is arranged between the first connecting semi-rings and the second connecting semi-rings; the small end of the second filter screen is connected with the first connecting semi-ring of the first installation mechanism, the large end of the second filter screen is connected with the second connecting semi-ring of the first installation mechanism, and in a first state, the second connecting semi-ring on the second filter screen is positioned at one side close to the first connecting semi-ring under the pulling of the tension spring; the small end of the fourth filter screen is connected with the first connecting semi-ring of the second installation mechanism, the large end of the fourth filter screen is connected with the second connecting semi-ring of the second installation mechanism, and in the first state, the second connecting semi-ring on the third filter screen is positioned at one side far away from the first connecting semi-ring under the action of the connecting mechanism;

The front side of each first connecting semi-ring is provided with a supporting rod, the supporting rod is provided with a strip-shaped through hole, the second connecting semi-ring penetrates through the strip-shaped through hole and is slidably arranged along the strip-shaped through hole, and the second connecting semi-ring of the first mounting mechanism is positioned at the rear end of the strip-shaped through hole in the first state; one end of the second connecting semi-ring is connected with a connecting rod, the front end of the connecting rod is provided with a stop block, the connecting rod connected to the second connecting semi-ring of the first mounting mechanism penetrates through the third filter screen, in an initial state, the stop block of the connecting rod mounted on the second connecting semi-ring of the first mounting mechanism is propped against the front end face of the third filter screen, the connecting rod connected to the second connecting semi-ring of the second mounting mechanism penetrates through the first filter screen, and in an initial state, the stop block of the connecting rod mounted on the second connecting semi-ring of the second mounting mechanism is far away from the first filter screen; the two connecting mechanisms are respectively a first connecting mechanism and a second connecting mechanism, the first connecting mechanism is arranged between the first filter screen and the second filter screen and is used for connecting the second filter screen with the first filter screen when the distance between the second filter screen and the first filter screen reaches a preset size, and the second connecting mechanism is arranged between the third filter screen and the fourth filter screen and is used for connecting the third filter screen with the fourth filter screen when the distance between the third filter screen and the fourth filter screen reaches a preset size; the irrigation and pesticide spraying integrated farmland water conservancy device further comprises a limiting mechanism, wherein the limiting mechanism is used for enabling the four filter screens to be kept at initial positions in a first state;

The inner peripheral wall of the water pipe is provided with a straight clamping groove, the straight clamping groove extends along the front-back direction, a first spring telescopic column is arranged on the second connecting semi-ring of the first mounting mechanism, and in a first state, the first spring telescopic column is positioned at the front end of the straight clamping groove;

2. The irrigation and pesticide spraying integrated farmland water conservancy device according to claim 1, wherein: the connecting mechanism comprises two connecting components, wherein the two connecting components are a first connecting component and a second connecting component respectively, each connecting component comprises a hinge ball and a ball groove, the hinge ball of the first connecting component of the first connecting mechanism is connected with a first connecting semi-ring of the first installing mechanism through a connecting rod, and the hinge groove of the first connecting component of the first connecting mechanism is arranged at the rear side of the first filter screen; the hinge ball of the second connecting component of the first connecting mechanism is connected with the second connecting semi-ring of the first mounting mechanism through a connecting rod, the hinge groove of the second connecting component of the first connecting mechanism is arranged at the rear side of the first filter screen, and when the hinge ball of the first connecting component of the first connecting mechanism is inserted into the ball groove of the first connecting component of the first connecting mechanism, the hinge ball of the second connecting component of the first connecting mechanism is inserted into the ball groove of the second connecting component of the first connecting mechanism;

3. An irrigation and chemical spraying integrated farmland irrigation device according to claim 2, characterized in that: the filter cartridge comprises a filter cartridge body, a filter cartridge, a first support shell, a second support shell, a first baffle plate, a second baffle plate, a first opening and a second opening, wherein the filter cartridge body is provided with a plurality of openings; the first filter screen is arranged on the outer side of the first support shell, and the small end of the first filter screen is propped against the rear end face of the grid baffle plate on the first support shell in an initial state; the third filter screen is arranged on the outer side of the second support shell, and the small end of the third filter screen is propped against the rear end face of the grid baffle plate of the second support shell in an initial state; the irrigation and pesticide spraying integrated farmland water conservancy device further comprises two push rods, each push rod is arranged on one first connecting semi-ring and used for pushing the supporting shell forwards when a preset position is reached between two filter screens on the same side, and the second opening corresponds to the side opening.

4. The irrigation and pesticide spraying integrated farmland water conservancy device according to claim 1, wherein: and blocking plates are arranged on two sides of the front end of the first connecting semi-ring and used for blocking sundries collected in the second filter screen and the fourth filter screen from falling.

5. The irrigation and pesticide spraying integrated farmland water conservancy device according to claim 1, wherein: the drive assembly is a propeller disposed at the front end of the filter cartridge, the propeller being configured to always have a tendency to rotate in a clockwise direction when viewed from the front to the rear when impacted by a water flow.