Tobacco root drip irrigation device

Abstract

The utility model relates to a tobacco root drip irrigation device which effectively solves the problem that a drip irrigation pipe is inconvenient to open and close. According to the technical scheme, the drip irrigation device comprises a drip irrigation pipe, a plurality of first water outlet holes are evenly distributed in the side wall of the drip irrigation pipe in the axial direction, a valve element assembly is installed in the drip irrigation pipe, a compressed spring is installed at the lower end of the valve element assembly, and when the compressed spring is in the original length, the valve element assembly blocks the corresponding first water outlet holes; the drip irrigation pipe is coaxially sleeved with a protective pipe, a plurality of second water outlet holes are formed in the side wall of the protective pipe, the second water outlet holes and the first water outlet holes are staggered in the circumferential direction, a plurality of axial first leaf plates are evenly distributed on the circumference of the outer wall of the second drip irrigation pipe, a plurality of axial second leaf plates are evenly distributed on the circumference of the inner wall of the protective pipe, and the first leaf plates and the second leaf plates are staggered; the drip irrigation device can be automatically opened and closed according to water pressure, water in the water supply pipe is prevented from continuously leaking into soil after drip irrigation is finished, and the purpose of more accurate irrigation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an irrigation equipment field, concretely is a tobacco root drip irrigation device. BACKGROUND

[0002] Drip irrigation mode has the advantages of water saving, precision, strong controllability compared with flooding mode; the utility model discloses a kind of underground drip irrigation pipe, it is vertically arranged along main pipe axial symmetry and set up the capillary tube of main pipe, capillary tube inserts into the soil near plant, and drip irrigation is carried out to plant, the equipment is relatively simple, valve core is not set in capillary tube, after stopping water supply, residual water in water supply pipe will continue to drip and seep, that is, drip irrigation opening and closing control is inconvenient. SUMMARY

[0003] In order to solve the problem of drip irrigation pipe opening and closing control, the utility model provides a tobacco root drip irrigation device.

[0004] Its technical solution includes drip irrigation pipe, the side wall of drip irrigation pipe is uniformly distributed with a plurality of first water outlets along the axial direction, a valve core assembly is arranged in the drip irrigation pipe, the valve core assembly is composed of the same number of core blocks as the first water outlets, the core blocks are uniformly distributed at the same interval as the first water outlets, the adjacent core blocks are fixedly connected through connecting rods, a compression spring is arranged at the lower end of the valve core assembly, when the compression spring is at the original length, the core blocks plug the corresponding first water outlets, a notch is arranged on each core block, and water can flow to the lower layer through the notch; a protective tube is coaxially sleeved outside the drip irrigation pipe, a plurality of second water outlets are arranged on the side wall of the protective tube, the second water outlets are circumferentially offset from the first water outlets, a plurality of first leaf plates are circumferentially and axially arranged on the outer wall of the second drip irrigation pipe, a plurality of second leaf plates are circumferentially and axially arranged on the inner wall of the protective tube, the first leaf plates and the second leaf plates are staggered, and gaps are left between the first leaf plates and the inner wall of the protective tube and between the second leaf plates and the outer wall of the drip irrigation pipe.

[0005] The side wall of the core block is attached with a sealing gasket.

[0006] The upper outer wall of the drip irrigation pipe is provided with a shaft shoulder, after the lower end of the drip irrigation pipe abuts against the lower end of the protective tube, the upper end of the shaft shoulder is flush with the upper end of the protective tube, and a compression cap is further included, which is threadedly mounted on the outer end of the protective tube, the upper end of the drip irrigation pipe penetrates through the compression cap and extends out, and the lower end of the compression cap presses the shaft shoulder.

[0007] The lower end of the protective tube is a pointed end.

[0008] The upper end of the drip irrigation pipe is threaded, for connection with a water supply pipe.

[0009] The utility model can be automatically opened and closed according to water pressure, avoid the water in the water supply pipe to continue to seep into the soil after drip irrigation is finished, and achieve more accurate irrigation purpose. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the front view of the utility model.

[0011] Figure 2 It is the front view of the utility model.

[0012] Figure 3 It is the assembly drawing of the utility model.

[0013] Figure 4 It is the top view of the utility model.

[0014] Figure 5 It is Figure 2 The enlarged view of A position in

[0015] Figure 6 It is Figure 2 The enlarged view of B position in Specific embodiment

[0016] The utility model discloses a drip irrigation pipe, the lateral wall of drip irrigation pipe 1 is uniformly distributed with a plurality of first water outlet holes 2 along the axial direction, and the drip irrigation pipe 1 is internally provided with a valve core assembly, the valve core assembly is composed of the same number of core blocks 3 as the first water outlet holes 2, the core blocks 3 are uniformly distributed at the same interval as the first water outlet holes 2, and adjacent core blocks 3 are fixedly connected through connecting rods 4, and the lower end of the valve core assembly is provided with a compression spring 5, when the compression spring 5 is in the original length, the core blocks 3 will block the corresponding first water outlet holes 2, and the water can flow to the lower layer through the notches 6 on each core block 3, after the upper end of the drip irrigation pipe 1 is watered, the valve core assembly moves under the action of water pressure and overcomes the action of the compression spring 5, and the first water outlet is opened, a protective pipe 7 is coaxially sleeved outside the drip irrigation pipe 1, a plurality of second water outlet holes 8 are formed in the lateral wall of the protective pipe 7, the second water outlet holes 8 are circumferentially offset from the first water outlet holes 2, a plurality of first leaf plates 9 are circumferentially and axially arranged on the outer wall of the drip irrigation pipe 1, a plurality of second leaf plates 10 are circumferentially and axially arranged on the inner wall of the protective pipe 7, the first leaf plates 9 are staggered with the second leaf plates 10, and gaps are formed between the first leaf plates 9 and the inner wall of the protective pipe 7 and between the second leaf plates 10 and the outer wall of the drip irrigation pipe 1, water enters between the drip irrigation pipe 1 and the protective pipe 7 through the first water outlet holes 2, and then flows out from the second water outlet holes 8 after bypassing the first leaf plates 9 and the second leaf plates 10, and even if the soil enters the protective pipe 7 through the second water outlet holes 8, the soil cannot enter the drip irrigation pipe 1 by bypassing the first leaf plates 9 and the second leaf plates 10, so that impurities between the valve core assembly and the inner wall of the drip irrigation pipe 1 are avoided, effective adhesion between the lateral wall of the core blocks 3 and the inner wall of the drip irrigation pipe 1 is ensured, and smooth movement of the valve core assembly is ensured.

[0017] The lateral wall of the core block 3 is attached with a sealing gasket 11, so as to ensure effective cooperation with the inner wall of the drip irrigation pipe 1 and avoid water leakage.

[0018] The upper outer wall of the drip irrigation pipe 1 is provided with a shaft shoulder 12, after the lower end of the drip irrigation pipe 1 abuts against the lower end of the protection pipe 7, the upper end of the shaft shoulder 12 is flush with the upper end of the protection pipe 7, and a pressing cap 13 is further included, the pressing cap 13 is screwed on the outer end of the protection pipe 7, the upper end of the drip irrigation pipe 1 penetrates the pressing cap 13 and extends out, and the lower end of the pressing cap 13 presses the shaft shoulder 12, so that the drip irrigation pipe 1 is fixed in the protection pipe 7.

[0019] The lower end of the protection pipe 7 is a pointed end, which is convenient for insertion into the soil.

[0020] The upper end of the drip irrigation pipe 1 is processed with threads, which is used for connection with a water supply pipe.

[0021] In use, the protection pipe 7 is inserted into the soil near the root of the tobacco, and the upper end of the drip irrigation pipe 1 is connected with the water supply pipe.

[0022] The valve core assembly and the compression spring 5 are matched, so that the first water outlet hole 2 can be automatically opened and closed according to the water pressure, the first water outlet hole 2 is closed in time after the water supply is stopped, the water in the water supply pipe is prevented from continuing to seep into the soil after the drip irrigation is completed, and the drip irrigation is more accurately controlled.

Claims

1. A tobacco root drip irrigation device, comprising a drip irrigation pipe (1), a plurality of first water outlets (2) are uniformly distributed on the side wall of the drip irrigation pipe (1) in the axial direction, characterized in that, The drip irrigation pipe (1) is provided with a valve core assembly, the valve core assembly is composed of core blocks (3) with the same number as the first water outlet holes (2), the core blocks (3) are uniformly distributed at the same interval as the first water outlet holes (2), adjacent core blocks (3) are fixedly connected through connecting rods (4), a compression spring (5) is arranged at the lower end of the valve core assembly, when the compression spring (5) is in the original length, the core blocks (3) will block the corresponding first water outlet holes (2), each core block (3) is provided with a notch (6), water can flow to the lower layer through the notch (6); the drip irrigation pipe (1) is coaxially sleeved with a protective pipe (7), a plurality of second water outlet holes (8) are arranged on the side wall of the protective pipe (7), the second water outlet holes (8) are circumferentially offset from the first water outlet holes (2), a plurality of first leaf plates (9) are circumferentially and axially arranged on the outer wall of the second drip irrigation pipe (1), a plurality of second leaf plates (10) are circumferentially and axially arranged on the inner wall of the protective pipe (7), the first leaf plates (9) and the second leaf plates (10) are staggered, and gaps are formed between the first leaf plates (9) and the inner wall of the protective pipe (7) and between the second leaf plates (10) and the outer wall of the drip irrigation pipe (1).

2. The tobacco plant root drip irrigation device according to claim 1, wherein, The side wall of the core block (3) is attached with a sealing gasket (11).

3. The tobacco plant root drip irrigation device according to claim 1, wherein, The upper outer wall of the drip irrigation pipe (1) is provided with a shaft shoulder (12), after the lower end of the drip irrigation pipe (1) abuts against the lower end of the protective pipe (7), the upper end of the shaft shoulder (12) is flush with the upper end of the protective pipe (7), and a compression cap (13) is further included, the compression cap (13) is threadedly screwed on the outer end of the protective pipe (7), the upper end of the drip irrigation pipe (1) penetrates through the compression cap (13) and extends out, and the lower end of the compression cap (13) abuts against the shaft shoulder (12).

4. The tobacco plant root drip irrigation device according to claim 1, wherein, The lower end of the protective pipe (7) is a pointed end.

5. The tobacco plant root drip irrigation device according to claim 1, wherein, The upper end of the drip irrigation pipe (1) is provided with threads for connecting with a water supply pipe. The lower end of the protective pipe (7) is a pointed end.

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