CN212616542U

CN212616542U - Check valve for irrigation

Info

Publication number: CN212616542U
Application number: CN202021360193.9U
Authority: CN
Inventors: 洪龙泉
Original assignee: Wuxi Leiou Valve Co ltd
Current assignee: Wuxi Leiou Valve Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-02-26
Anticipated expiration: 2030-07-10

Abstract

The utility model relates to the technical field of agricultural production, in particular to a check valve for irrigation, which can prevent water backflow in the farmland and protect the water source from being polluted by the arrangement; the water inlet pipe is fixedly arranged in the water inlet pipe; still include the apron, a mounting bracket, a spring, the limiting plate, the connecting rod, block up, two sets of fixing bolt, two sets of packing rings, the rose box, insert box and inserted frame, the valve body top is equipped with the opening, the apron clamps at the opening part, mounting bracket top and apron bottom fixed connection, the spring is located the mounting bracket, spring top and apron bottom fixed connection, the limiting plate is located the mounting bracket, limiting plate top and spring bottom fixed connection, the connecting rod passes the mounting bracket bottom, connecting rod top and limiting plate bottom fixed connection, connecting rod bottom and block up top fixed connection, it can insert to the consent to block up the bottom.

Description

Check valve for irrigation

Technical Field

The utility model relates to an agricultural production's technical field especially relates to a check valve for irrigation.

Background

Irrigation valves are well known as an auxiliary device for agricultural irrigation in the agricultural production process, and are widely used in the field of agricultural production; the existing water conservancy irrigation valve comprises a valve body, a water inlet pipe, a water drain pipe and a partition plate, wherein the left end of the valve body is communicated with the right end of the water inlet pipe, the right end of the valve body is communicated with the left end of the water drain pipe, and the partition plate is fixedly arranged in the water inlet pipe; when the existing water conservancy irrigation valve is used, agricultural water enters the valve body through the water inlet pipe, then flows out through the water discharge pipe and is discharged into the farmland; the existing irrigation valve is found that water in the farm land can flow back to a water source to cause water source pollution in use.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a through the setting, can prevent the water countercurrent in the farmland, the protection water source does not receive the check valve for irrigation who receives the pollution.

The utility model discloses a check valve for irrigation, including valve body, inlet tube, drain pipe and baffle, the valve body left end and the inlet tube right-hand member intercommunication, the valve body right-hand member and the drain pipe left end intercommunication, the baffle is fixed mounting in the inlet pipe; the filter box comprises a valve body, a connecting rod, a plug, two sets of fixing bolts, two sets of gaskets, a filter box, an insert box and an insert frame, wherein the top end of the valve body is provided with an opening, the connecting rod is clamped at the opening, the top end of the mounting frame is fixedly connected with the bottom end of the cover plate, the spring is positioned in the mounting frame, the top end of the spring is fixedly connected with the bottom end of the cover plate, the limiting plate is positioned in the mounting frame, the top end of the limiting plate is fixedly connected with the bottom end of the spring, the connecting rod penetrates through the bottom end of the mounting frame, the top end of the connecting rod is fixedly connected with the bottom end of the limiting plate, the bottom end of the plug can be inserted into a plug hole, the plug hole is formed in the partition plate, the fixing bolt penetrates through, the filter screen is arranged on the inserting frame.

The utility model discloses a check valve for irrigation still includes spacing pipe and gag lever post, spacing pipe top and apron bottom fixed connection, gag lever post bottom and limiting plate top fixed connection, and the gag lever post top is inserted to spacing intraductal, and the spring coil housing is on spacing pipe.

The utility model discloses a check valve for irrigation still includes seal box, lead screw and scraper blade, and seal box seal mounting is in inserting the box, and the lead screw is rotatable to be passed and to be inserted box bottom and seal box, and the rotatable installation in lead screw top is inserted a frame top, and the lead screw passes the scraper blade, and the scraper blade spiral shell dress is on the lead screw, scraper blade right-hand member and the contact of filter screen left end.

The utility model discloses a check valve for irrigation still includes two sets of stoppers, stopper fixed mounting on the lead screw.

The utility model discloses a check valve for irrigation still includes clearance door and two sets of positioning bolt, inserts the box left end and is equipped with the opening, and clearance door card dress is at the opening part, and the positioning bolt top is passed and is inserted the box to the spiral shell dress is in the rose box bottom.

The utility model discloses a check valve for irrigation still includes the kicking block, the inserted bar, the inserted block, screw rod and screwed pipe, kicking block bottom and rose box top fixed connection, the kicking block bottom is equipped with the recess, inserted bar bottom and inserted frame top fixed connection, the rose box is passed on the inserted bar top, and insert to the recess of kicking block bottom, inserted bar upper portion is equipped with the through-hole, be equipped with the cross slot on the kicking block, the inserted block is located the cross slot, the through-hole on the inserted bar is passed to the inserted block left end, screw rod left end and inserted block right-hand member rotatable coupling, screwed pipe left end and inserted frame right-hand member fixed connection, screw rod spiral shell dress to the screw rod in.

The utility model discloses a check valve for irrigation still includes locating lever and registration arm, locating lever top and apron bottom fixed connection, registration arm bottom and baffle top fixed connection, and the locating lever bottom can be inserted to in the registration arm.

The utility model discloses a check valve for irrigation still includes the sealing washer, and sealing washer fixed mounting is at the apron inner circle.

Compared with the prior art, the beneficial effects of the utility model are that: at first agricultural water passes through the inlet tube and gets into in the filter box, after the filtration of filter screen, get into in the valve body, the pressure of water will block up upwards to push up, drive the connecting rod rebound, the spring is compressed, rivers go into in the drain pipe, arrange to the farmland can, if stop the water source, the spring reconversion, push down limiting plate and connecting rod, make to block up and insert the consent again, can prevent the water against the current, the protection water source, screw up fixing bolt, can strengthen the stability of apron, not hard up fixing bolt, can make things convenient for the apron to dismantle, change the repair to various parts.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view showing the internal connection of the filtration tank;

FIG. 3 is an enlarged schematic view of a portion A of FIG. 2;

FIG. 4 is an enlarged schematic view of a portion B of FIG. 1;

in the drawings, the reference numbers: 1. a valve body; 2. a water inlet pipe; 3. a drain pipe; 4. a partition plate; 5. a cover plate; 6. a mounting frame; 7. a spring; 8. a limiting plate; 9. a connecting rod; 10. blocking; 11. plugging the hole; 12. fixing the bolt; 13. a gasket; 14. a filter box; 15. inserting a box; 16. inserting a frame; 17. a filter screen; 18. a limiting pipe; 19. a limiting rod; 20. a sealing box; 21. a lead screw; 22. a squeegee; 23. a limiting block; 24. cleaning the door; 25. positioning the bolt; 26. a top block; 27. inserting a rod; 28. a transverse groove; 29. inserting a block; 30. a screw; 31. a solenoid; 32. positioning a rod; 33. a positioning tube; 34. and (5) sealing rings.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the check valve for irrigation of the utility model comprises a valve body 1, a water inlet pipe 2, a drain pipe 3 and a partition plate 4, wherein the left end of the valve body 1 is communicated with the right end of the water inlet pipe 2, the right end of the valve body 1 is communicated with the left end of the drain pipe 3, and the partition plate 4 is fixedly arranged in the water inlet pipe 2; the valve body is characterized by further comprising a cover plate 5, a mounting frame 6, a spring 7, a limiting plate 8, a connecting rod 9, a plug 10, two sets of fixing bolts 12, two sets of gaskets 13, a filter box 14, an insert box 15 and an insert frame 16, wherein an opening is formed in the top end of the valve body 1, the cover plate 5 is clamped at the opening, the top end of the mounting frame 6 is fixedly connected with the bottom end of the cover plate 5, the spring 7 is positioned in the mounting frame 6, the top end of the spring 7 is fixedly connected with the bottom end of the cover plate 5, the limiting plate 8 is positioned in the mounting frame 6, the top end of the limiting plate 8 is fixedly connected with the bottom end of the spring 7, the connecting rod 9 penetrates through the bottom end of the mounting frame 6, the top end of the connecting rod 9 is fixedly connected with the bottom end of the limiting plate 8, the bottom end of the connecting rod 9 is fixedly connected, the filter box 14 is communicated with the water inlet pipe 2, the top end of the insert box 15 is communicated with the bottom end of the filter box 14, the insert frame 16 is arranged in the filter box 14, and the filter screen 17 is arranged on the insert frame 16; agricultural water firstly enters the filter box 14 through the water inlet pipe 2, after being filtered by the filter screen 17, the agricultural water enters the valve body 1, the plug 10 is pushed upwards by the pressure of the water to drive the connecting rod 9 to move upwards, the spring 7 is compressed, the water flows into the water discharge pipe 3 and is discharged to the farmland, if the water source is stopped, the spring 7 is restored to the original state, the limiting plate 8 and the connecting rod 9 are pressed downwards to enable the plug 10 to be inserted into the plug hole 11 again, the water backflow can be prevented, the water source is protected, the fixing bolt 12 is screwed, the stability of the cover plate 5 can be enhanced, the fixing bolt 12 is loosened, the cover plate 5 can be conveniently detached, and various parts can be replaced and repaired.

The utility model discloses a check valve for irrigation, still include spacing pipe 18 and gag lever post 19, spacing 18 top and 5 bottom fixed connections of apron, 19 bottom and 8 top fixed connections of limiting plate of

gag lever post

19, 19 tops of gag lever posts insert to spacing in the pipe 18, spring 7 snare is on spacing pipe 18; by the arrangement, the spring 7 can be prevented from being compressed excessively, and the stability of the spring 7 can be improved.

The utility model discloses a check valve for irrigation, still include seal box 20, lead screw 21 and scraper blade 22, seal box 20 is sealed to be installed in inserting box 15, lead screw 21 is rotatable to pass and inserts box 15 bottom and seal box 20, lead screw 21 top is rotatable to be installed in the top of inserting the frame 16, lead screw 21 passes scraper blade 22, scraper blade 22 spiral shell dress is on lead screw 21, scraper blade 22 right-hand member and the contact of filter screen 17 left end; through the arrangement, the screw 21 is rotated to drive the scraper 22 to move up and down, so that the scraper 22 scrapes off impurities and the like attached to the surface of the filter screen 17, the filter screen 17 can be prevented from being blocked, and the filtering effect of the filter screen 17 is improved.

The utility model discloses a check valve for irrigation, still include two sets of stoppers 23, stopper 23 is fixed mounting on lead screw 21; through setting up, can play spacing effect to scraper blade 22, improve scraper blade 22's stability.

The utility model discloses a check valve for irrigation, still include clearance door 24 and two sets of positioning bolt 25, insert the box 15 left end and be equipped with the opening, clearance door 24 clamps at the opening, and positioning bolt 25 top passes insert box 15, and the spiral shell dress is in filter box 14 bottom; through setting up, open cleaning door 24, can will deposit clean up such as impurity in inserting box 15, screw up positioning bolt 25, can strengthen the connection of inserting box 15 and rose box 14, improve the stability of inserting box 15.

The utility model discloses a check valve for irrigation, still include kicking block 26, inserted bar 27, inserted block 29, screw rod 30 and screwed pipe 31, kicking block 26 bottom and 14 top fixed connections of rose box, kicking block 26 bottom is equipped with the recess, inserted bar 27 bottom and 16 top fixed connections of inserted frame, inserted bar 27 top passes rose box 14, and insert to the recess of kicking block 26 bottom, inserted bar 27 upper portion is equipped with the through-hole, be equipped with cross slot 28 on the kicking block 26, inserted block 29 is located cross slot 28, inserted block 29 left end passes the through-hole on inserted bar 27, screw rod 30 left end and 29 right-hand members rotatable coupling of inserted block, screwed pipe 31 left end and 16 right-hand members fixed connection of inserted frame, screw rod 30 spiral shell dress is to the screwed pipe 31; through the arrangement, the screw rod 30 is rotated to drive the insertion block 29 to move left and right, so that the insertion block 29 is inserted into the insertion rod 27, and the stability of the insertion frame 16 can be enhanced.

The utility model discloses a check valve for irrigation, still include locating lever 32 and registration arm 33, the top end of locating lever 32 and the bottom end of cover plate 5 are fixedly connected, the bottom end of registration arm 33 and the top end of baffle 4 are fixedly connected, the bottom end of locating lever 32 can be inserted into registration arm 33; through the setting, when installation apron 5, can play the effect of location support to apron 5.

The utility model discloses a check valve for irrigation, further comprises a sealing ring 34, wherein the sealing ring 34 is fixedly arranged on the inner ring of the cover plate 5; through the arrangement, the sealing function can be achieved, and water is prevented from leaking out of the connection position of the cover plate 5.

The utility model discloses a check valve for irrigation, during operation, firstly, the fixing bolt is screwed, the cover plate is fixed, then the screw rod is rotated to drive the insert block to move left and right, so that the insert block is inserted into the insert rod, the inserting frame is fixed, then the positioning bolt is rotated to strengthen the connection between the insert box and the filter box, then agricultural water enters the filter box through the water inlet pipe, after being filtered by the filter screen, the agricultural water enters the valve body, the pressure of the water pushes the plug upwards to open, the connecting rod and the limiting plate are driven to move upwards, the spring is compressed, the water flows into the drain pipe and is discharged to the farmland, if the water source is stopped, the spring recovers the original state, the limiting plate and the connecting rod are pressed downwards, the plug is inserted into the plug hole again, the water backflow can be prevented, the water pollution is prevented, after the irrigation is finished, if the filter screen needs to be cleaned, the screw rod is rotated, the scraper blade is driven, can prevent the filter screen from being blocked.

The utility model discloses a check valve for irrigation, its mounting means, connected mode or set up the mode and be common mechanical system, as long as can reach all can implement of its beneficial effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A check valve for water conservancy irrigation comprises a valve body (1), a water inlet pipe (2), a water drain pipe (3) and a partition plate (4), wherein the left end of the valve body (1) is communicated with the right end of the water inlet pipe (2), the right end of the valve body (1) is communicated with the left end of the water drain pipe (3), and the partition plate (4) is fixedly installed in the water inlet pipe (2); the novel valve is characterized by further comprising a cover plate (5), a mounting frame (6), a spring (7), a limiting plate (8), a connecting rod (9), a plug (10), two sets of fixing bolts (12), two sets of gaskets (13), a filter box (14), an insert box (15) and an insert frame (16), wherein the top end of the valve body (1) is provided with an opening, the cover plate (5) is clamped at the opening, the top end of the mounting frame (6) is fixedly connected with the bottom end of the cover plate (5), the spring (7) is positioned in the mounting frame (6), the top end of the spring (7) is fixedly connected with the bottom end of the cover plate (5), the limiting plate (8) is positioned in the mounting frame (6), the top end of the limiting plate (8) is fixedly connected with the bottom end of the spring (7), the connecting rod (9) passes through the bottom end of the mounting frame (6), the top end of the, the bottom end of the plug (10) can be inserted into the plug hole (11), the plug hole (11) is formed in the partition plate (4), the fixing bolt (12) penetrates through the cover plate (5), the bottom end of the fixing bolt (12) is screwed on the top end of the valve body (1), the gasket (13) is installed between the fixing bolt (12) and the valve body (1), the filter box (14) is communicated with the water inlet pipe (2), the top end of the plug box (15) is communicated with the bottom end of the filter box (14), the plug frame (16) is installed in the filter box (14), and the filter screen (17) is arranged on the plug frame (16).

2. The check valve for water conservancy irrigation according to claim 1, further comprising a limiting tube (18) and a limiting rod (19), wherein the top end of the limiting tube (18) is fixedly connected with the bottom end of the cover plate (5), the bottom end of the limiting rod (19) is fixedly connected with the top end of the limiting plate (8), the top end of the limiting rod (19) is inserted into the limiting tube (18), and the spring (7) is sleeved on the limiting tube (18).

3. The check valve for the irrigation as claimed in claim 2, further comprising a sealing box (20), a lead screw (21) and a scraper (22), wherein the sealing box (20) is hermetically installed in the plug-in box (15), the lead screw (21) rotatably penetrates through the bottom end of the plug-in box (15) and the sealing box (20), the top end of the lead screw (21) is rotatably installed at the top end of the plug-in frame (16), the lead screw (21) penetrates through the scraper (22), the scraper (22) is screwed on the lead screw (21), and the right end of the scraper (22) is in contact with the left end of the filter screen (17).

4. A check valve for irrigation according to claim 3, further comprising two sets of stoppers (23), the stoppers (23) being fixedly mounted on the screw (21).

5. A check valve for irrigation according to claim 4, further comprising a cleaning door (24) and two sets of positioning bolts (25), wherein the left end of the insert box (15) is provided with an opening, the cleaning door (24) is clamped at the opening, and the top ends of the positioning bolts (25) penetrate through the insert box (15) and are screwed at the bottom end of the filter box (14).

6. The check valve for water conservancy irrigation according to claim 5, further comprising a top block (26), an insert rod (27), an insert block (29), a screw rod (30) and a spiral pipe (31), wherein the bottom end of the top block (26) is fixedly connected with the top end of the filter box (14), the bottom end of the top block (26) is provided with a groove, the bottom end of the insert rod (27) is fixedly connected with the top end of the insert frame (16), the top end of the insert rod (27) penetrates through the filter box (14), and insert in the recess of kicking block (26) bottom, inserted bar (27) upper portion is equipped with the through-hole, be equipped with cross slot (28) on kicking block (26), inserted block (29) are located cross slot (28), the through-hole on inserted bar (27) is passed to inserted block (29) left end, screw rod (30) left end and inserted block (29) right-hand member rotatable coupling, solenoid (31) left end and inserted frame (16) right-hand member fixed connection, screw rod (30) spiral shell dress is to in solenoid (31).

7. The check valve for water conservancy irrigation according to claim 6, further comprising a positioning rod (32) and a positioning pipe (33), wherein the top end of the positioning rod (32) is fixedly connected with the bottom end of the cover plate (5), the bottom end of the positioning pipe (33) is fixedly connected with the top end of the partition plate (4), and the bottom end of the positioning rod (32) can be inserted into the positioning pipe (33).

8. A check valve for irrigation according to claim 7, further comprising a sealing ring (34), wherein the sealing ring (34) is fixedly mounted on the inner ring of the cover plate (5).