Supply control valve for trace element water-soluble fertilizer

Abstract

The utility model discloses a trace element water-soluble fertilizer supply control valve, and relates to the technical field of agricultural irrigation. Comprising a valve body, a ball core is arranged in an inner cavity of the valve body, a valve rod is fixedly installed on the ball core, a shaft hole is formed in the top of the valve body, the valve rod extends outwards from the shaft hole, a water inlet is formed in the left side of the valve body, a valve deck is fixedly installed on the right side of the valve body through a bolt, and a water outlet is formed in the right end of the valve deck. According to the trace element water-soluble fertilizer supply control valve, the telescopic sleeve is installed at the water outlet of the valve, and the metal corrugated pipe in the telescopic sleeve has good bending performance and a guiding retraction function, so that displacement deformation in the pipeline operation process can be effectively absorbed; the connecting position of an external pipeline and the valve cannot be tightened, so that workers can disassemble the valve conveniently, installation and maintenance of the workers are facilitated, operation is easy and convenient, the disassembly and assembly time is shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural irrigation technical field, concretely is a kind of trace element water-soluble fertilizer supply control valve. BACKGROUND

[0002] Trace element water-soluble fertilizer is a kind of fertilizer rich in multiple trace elements, they are essential elements in the growth process of plants, but only need a small amount, usually in milligram or even microgram, trace element water-soluble fertilizer can be directly sprayed or irrigated to crops with water as solvent, to meet the demand of crops for trace elements, promote growth and development, improve yield and quality.

[0003] Trace element water-soluble fertilizer usually needs to be supplemented during the growth period of crops, and can be used by spraying or irrigation, in the irrigation process, soluble solids or liquid fertilizer, according to the soil nutrient content and the fertilizer demand law and characteristics of crop species, the fertilizer solution is mixed and matched with irrigation water, and the water and fertilizer are supplied through pipeline system, and are delivered to the root area of crops in a timely, quantitative or uniform and accurate manner.

[0004] In order to better control the irrigation operation of irrigation equipment, a plurality of valves are installed on the irrigation equipment, but the flanges between the valve and the pipeline are usually tightly fixed and connected during installation, although it can meet the demand, when the pipeline is broken or the valve needs to be repaired and replaced, since the valve and the pipeline are tightly fixed and connected, when the valve or the pipeline connected therewith is removed, it is not only inconvenient to operate, but also not easy to install a new pipeline or valve, and the repair and replacement is extremely inconvenient. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of trace element water-soluble fertilizer supply control valve to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of trace element water-soluble fertilizer supply control valve, including valve body, ball core is arranged in the inner chamber of the valve body, and valve rod is fixedly installed on the ball core, the top of the valve body is equipped with shaft hole, the valve rod is outwardly stretched from shaft hole, the left side of the valve body is equipped with water inlet, the right side of the valve body is fixedly installed with valve cover by bolt, and the right end of the valve cover is equipped with water outlet, the valve cover is connected with telescopic sleeve by water outlet screw thread;The telescopic sleeve includes valve connector, metal bellows and pipe connector, one end of the metal bellows is tightly matched with valve connector, and one end of the metal bellows is tightly matched with pipe connector.

[0007] Further, the inner chamber of the valve body is provided with a sealing ring, and the sealing ring is located on both sides of the ball core.

[0008] Furthermore, the shaft hole is filled with a sealing filler, and the sealing filler is located between the shaft hole and the valve stem.

[0009] Furthermore, a packing gland is sleeved on the upper portion of the valve stem, and the gland is pressed on the sealing packing.

[0010] Furthermore, a rubber gasket is provided in the water outlet, and the rubber gasket is located between the water outlet and the valve joint.

[0011] Furthermore, the inner walls of the water inlet and the water outlet are both internally threaded structures, and one end of the valve joint is an externally threaded structure.

[0012] Compared with the prior art, the utility model provides a trace element water-soluble fertilizer supply control valve, which has the following beneficial effects:

[0013] The trace element water-soluble fertilizer supply control valve is equipped with a telescopic sleeve at the water outlet of the valve. The metal bellows in the telescopic sleeve has good flexural performance and guiding retraction function, which can effectively absorb the displacement and deformation during pipeline operation. When removing the connection between the external pipeline and the valve, the connection between the external pipeline and the valve will not be tight, thereby making it convenient for the staff to remove the valve, which is beneficial to the staff's installation and maintenance. The operation is simple and convenient, reducing the disassembly and assembly time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a cross-sectional view of the valve body of the present utility model;

[0016] Figure 3 It is a cross-sectional view of the telescopic sleeve of the present utility model.

[0017] In the figure: 1. Valve body; 2. Ball core; 3. Valve stem; 4. Shaft hole; 5. Water inlet; 6. Valve cover; 7. Water outlet; 8. Telescopic sleeve; 801. Valve joint; 802. Metal bellows; 803. Pipe joint; 9. Sealing ring; 10. Sealing packing; 11. Packing gland; 12. Rubber gasket. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 3 The utility model discloses a trace element water-soluble fertilizer supply control valve, comprising a valve body 1, a ball core 2 is provided in the inner cavity of the valve body 1, and a valve stem 3 is fixedly installed on the ball core 2, an axial hole 4 is provided on the top of the valve body 1, and the valve stem 3 extends outward from the axial hole 4, a water inlet 5 is provided on the left side of the valve body 1, a valve cover 6 is fixedly installed on the right side of the valve body 1 by bolts, and a water outlet 7 is provided at the right end of the valve cover 6, the valve cover 6 is threadedly connected to a telescopic sleeve 8 through the water outlet 7, and a telescopic sleeve 8 is installed at the water outlet 7 of the valve, and the metal bellows 802 in the telescopic sleeve 8 has good flexibility and guide retraction function, which can effectively absorb the displacement deformation during the operation of the pipeline, and when the connection between the external pipeline and the valve is removed, the connection between the external pipeline and the valve will not be tight, thereby making it convenient for the staff to remove the valve, which is beneficial to the installation and maintenance of the staff, simple and convenient operation, reducing the disassembly and assembly time, and improving work efficiency;

[0020] The telescopic sleeve 8 includes a valve joint 801 , a metal bellows 802 and a pipe joint 803 . One end of the metal bellows 802 is tightly connected to the valve joint 801 , and one end of the metal bellows 802 is tightly connected to the pipe joint 803 .

[0021] Specifically, a sealing ring 9 is provided in the inner cavity of the valve body 1 , and the sealing ring 9 is located on both sides of the ball core 2 .

[0022] In this embodiment, the sealing ring 9 is located on both sides of the ball core 2 to separate the inner cavity of the valve body 1 and the pipeline to ensure that the fluid does not leak when flowing in the pipeline. The sealing ring 9 is usually made of rubber or polytetrafluoroethylene and other materials, which have good sealing performance and corrosion resistance.

[0023] Specifically, the shaft hole 4 is filled with a sealing filler 10 , and the sealing filler 10 is located between the shaft hole 4 and the valve stem 3 .

[0024] In this embodiment, the function of the sealing packing 10 is to fill between the valve stem 3 and the shaft hole 4 to seal the valve. During the frequent opening and closing of the valve, the valve stem 3 needs to rotate. If there is no tight sealing of the packing, the fluid medium may leak out through the tiny gap between the valve stem 3 and the shaft hole 4.

[0025] Specifically, a packing gland 11 is sleeved on the upper portion of the valve stem 3 , and the gland is pressed on the sealing packing 10 .

[0026] In this embodiment, the packing gland 11, as a valve accessory, plays an important role in industrial pipelines. By compacting, fixing and compressing the packing, the packing can fill the internal space of the valve more tightly, thereby ensuring the sealing performance of the valve.

[0027] Specifically, a rubber gasket 12 is provided in the water outlet 7 , and the rubber gasket 12 is located between the water outlet 7 and the valve joint 801 .

[0028] In this embodiment, the rubber gasket 12 acts as a seal at the connection between the water outlet 7 and the valve connector 801 to prevent leakage of liquid, gas or solid particles. Since the rubber material has good elasticity and corrosion resistance, it can ensure the stability and sealing of the connection and avoid problems such as pipe leakage or seepage.

[0029] Specifically, the inner walls of the water inlet 5 and the water outlet 7 are both internal thread structures, and one end of the valve connector 801 is an external thread structure.

[0030] In this embodiment, the expansion sleeve 8 and the water outlet 7 are installed by threaded connection, and the expansion sleeve 8 is connected to the pipeline by crimping or welding.

[0031] When in use, a telescopic sleeve 8 is installed at the water outlet 7 of the valve, and the metal bellows 802 in the telescopic sleeve 8 has good flexural performance and guiding retraction function, which can effectively absorb the displacement deformation during the operation of the pipeline. When removing the connection between the external pipeline and the valve, the connection between the external pipeline and the valve will not be tight, thereby making it convenient for the staff to remove the valve, which is beneficial to the staff's installation and maintenance. The operation is simple and convenient, reducing the disassembly and assembly time and improving work efficiency.

[0032] To sum up, the trace element water-soluble fertilizer supply control valve is equipped with a telescopic sleeve 8 at the water outlet 7 of the valve, and the metal bellows 802 in the telescopic sleeve 8 has good flexural performance and guiding retraction function, which can effectively absorb the displacement deformation during the operation of the pipeline. When the connection between the external pipeline and the valve is removed, the connection between the external pipeline and the valve will not be tight, thereby making it convenient for the staff to remove the valve, which is beneficial to the staff's installation and maintenance. The operation is simple and convenient, which reduces the disassembly and assembly time and improves work efficiency.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trace element water-soluble fertilizer supply control valve, comprising a valve body (1), characterized in that: A ball core (2) is provided in the inner cavity of the valve body (1), and a valve stem (3) is fixedly mounted on the ball core (2); an axial hole (4) is provided on the top of the valve body (1), and the valve stem (3) extends outward from the axial hole (4); a water inlet (5) is provided on the left side of the valve body (1); a valve cover (6) is fixedly mounted on the right side of the valve body (1) by bolts, and a water outlet (7) is provided at the right end of the valve cover (6); and a telescopic sleeve (8) is threadedly connected to the valve cover (6) through the water outlet (7); The telescopic sleeve (8) comprises a valve joint (801), a metal bellows (802) and a pipe joint (803), one end of the metal bellows (802) being tightly coupled to the valve joint (801), and one end of the metal bellows (802) being tightly coupled to the pipe joint (803).

2. The trace element water-soluble fertilizer supply control valve according to claim 1, characterized in that: A sealing ring (9) is provided in the inner cavity of the valve body (1), and the sealing ring (9) is located on both sides of the ball core (2).

3. The trace element water-soluble fertilizer supply control valve according to claim 1, characterized in that: The shaft hole (4) is filled with a sealing filler (10), and the sealing filler (10) is located between the shaft hole (4) and the valve stem (3).

4. The trace element water-soluble fertilizer supply control valve according to claim 3, characterized in that: A packing gland (11) is sleeved on the upper portion of the valve stem (3), and the gland is pressed onto the sealing packing (10).

5. The trace element water-soluble fertilizer supply control valve according to claim 1, characterized in that: A rubber gasket (12) is provided in the water outlet (7), and the rubber gasket (12) is located between the water outlet (7) and the valve joint (801).

6. The trace element water-soluble fertilizer supply control valve according to claim 1, characterized in that: The inner walls of the water inlet (5) and the water outlet (7) are both internally threaded structures, and one end of the valve connector (801) is an externally threaded structure.

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