CN215721048U - One-way valve for water outlet end of lifting column of multifunctional irrigation system - Google Patents

Abstract

The utility model relates to a one-way valve for the water outlet end of a lifting column of a multifunctional irrigation system, wherein a valve plate is controlled by an elastic part to open and close the one-way valve, the elastic part is in a compressed state when water pressure is not applied, so that axial force is applied to a lifting rod, the valve plate on the lifting rod is tightly pressed and sealed on a water passage to play a role of sealing, when water pressure in the incoming direction is received, the elastic part is continuously compressed under the action of the water pressure, the water passage is opened, water enters a rotary spray head for irrigation, and therefore, one-way water passing is realized, the sealing performance is good, energy and water are saved, and finally, the lifting column of the multifunctional irrigation system is strong in contractibility, high in retraction speed, low in manufacturing cost, long in service life, convenient to use and good in effect.

Description

One-way valve for water outlet end of lifting column of multifunctional irrigation system

Technical Field

The utility model relates to a one-way valve for a water outlet end of a lifting column of a multifunctional irrigation and fertilization system.

Background

Agriculture is an important basic industry in China, and when farmland irrigation and fertilization are carried out, the traditional method is carried out manually, so that time and labor are wasted, and the efficiency is low; by utilizing advanced facilities and technologies, field production of 'eating by the sky' is changed into large-scale automatic production, which is the direction of agricultural development in China, and a lot of irrigation and fertilization equipment also appears in the market, but due to structural problems, the equipment has high cost and few functions, can not freely emerge from the ground or underground, and influences other working procedures after the equipment is arranged, so the equipment is very inconvenient to use and has unsatisfactory effect, therefore, the applicant applies a 'multifunctional irrigation and fertilization system' with the application number '201400320678. X' in the future, wherein the spraying mechanism is structurally composed of a telescopic pipe and a rotary spray head arranged at the upper end part of the telescopic pipe, the telescopic pipe is a telescopic sealing structure composed of a plurality of sections of round hollow pipes with different diameters, the previous section is compressed in the next section, and a sealing ring is arranged between every two sections; during the use, flexible pipe stretches out from the ground end, and rotatory nozzle is carried to water in following the flexible pipe, from rotatory nozzle blowout, reaches the purpose of irrigating, and wherein rotatory nozzle is because its structural problem, and the result of use is unsatisfactory, has applied for a plurality of supporting products behind the applicant again: the multifunctional irrigation system comprises a series of products such as 'submersible rotary spray heads' with application numbers of '201320826515.8' and '201420601534.5', a 'rotary spray head for a multifunctional irrigation system' with application number of '201520491941. X', a 'lifting column for a multifunctional irrigation and fertilization system' with application number of '201520209803.8', a 'sealed lifting type lifting column' with application number of '201610482114.3', and the like, wherein the products are all improved according to actual use conditions in the using process of an applicant, the purpose of the improved multifunctional irrigation and fertilization system is to enable the lifting column to be lifted during water spraying and to be retracted under the action of negative pressure after water stopping, a one-way valve is arranged between the lifting column and the rotary spray head, and if the existing one-way valve is adopted, such as a pressure spring type one-way valve, the existing one-way valve cannot be used in corrosive liquid such as acid and alkali due to the fact that the existing one-way valve is made of metal; the dead weight type seal can only be used vertically due to the metal balance weight, and the application range is also narrow; the glass bead sealing has high requirements on the hemisphere and the glass bead process, the manufacturing cost is high, the glass bead sealing can only be used vertically, and the liquid cannot contain sand impurities. The rubber ball has a ridge, and when the ridge contacts with the water hole of the valve body, a gap exists, so that the air tightness cannot be ensured, and the lifting column cannot be automatically lowered under negative pressure when in use.

Therefore, the applicant applies for a check valve with the publication number of CN207034277U, which not only maintains the hemispherical elastic sealing property, but also separates the convex edge from the water through hole, the liquid contains sand particles and other similar impurities and can be well sealed, the tail end of the sliding sealing body has an elastic column to push the sliding sealing body to advance, therefore, the check valve is not dependent on the dead weight and can be installed in different directions and angles, but in the actual long-term use process, the hemispherical sliding sealing body can not be pushed in place at times when the hemispherical sliding sealing body is found, so that the ball body can not be tightly attached to the arc inner wall of the water through hole, the air leakage phenomenon occurs, and the one-way flow effect is good and bad, therefore, the improvement and innovation of the check valve for the multifunctional fertigation system are imperative.

Disclosure of Invention

In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a one-way valve for the water outlet end of the lifting column of the multifunctional irrigation system, which can effectively solve the problem of continuous one-way water supply of the multifunctional irrigation and fertilization system.

The technical scheme of the utility model is as follows:

the utility model provides a check valve for multi-functional irrigation system lift column goes out water end, which comprises a valve body, be provided with the disk seat in the valve body, the disk seat separates the valve body inner chamber into the intake antrum of below and the play water cavity of top, the water channel that has intercommunication intake antrum and play water cavity is opened to disk seat one side, be provided with along the flexible jib of water channel axial on the disk seat of water channel one side, be fixed with the valve plate that is located directly over the water channel on the jib of water cavity one side, the valve plate lower surface covers there is sealed the pad, be fixed with the backup pad on the jib that is located intake antrum one side, be provided with between backup pad and the disk seat lower surface and be used for compressing tightly the elastic component on the water channel with the valve plate is sealed.

And a filter cylinder positioned on the periphery of the elastic part is fixed in the water inlet cavity.

The check valve is arranged at the water inlet end of the rotary spray head of the multifunctional fertigation system, and the water outlet direction of the check valve faces to the water inlet end of the rotary spray head.

When the sealing pad on the valve plate is pressed on the upper opening of the water passing channel, the elastic piece is in a compressed state.

The utility model has novel and unique structure, simplicity, reasonableness, easy production and low cost, controls the valve plate to open and close the one-way valve through the elastic part, and controls the valve plate to open and close the one-way valve, because the elastic part is in a compression state when not receiving the water pressure, thereby applying axial force to the suspender, tightly pressing and sealing the valve plate on the suspender on the water passage to play a role of sealing, when receiving the water pressure in the water inlet direction, the elastic part is continuously compressed under the action of the water pressure, thereby opening the water passage, and the water enters the rotary spray head for irrigation, thereby realizing the one-way water passing, having good sealing performance, saving energy and water, finally ensuring that the lifting column of the multifunctional irrigation and fertilization system has strong contractibility, high retraction speed, low manufacturing cost, long service life, convenient use, good effect and good social and economic benefits.

Drawings

FIG. 1 is a perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional view of the check valve of the present invention closed.

Fig. 4 is a cross-sectional view of the check valve of the present invention when open.

Fig. 5 is a perspective view of the valve core (the valve core is composed of a suspension rod, a valve plate, a sealing gasket lower support, a support plate and an elastic element) of the utility model.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in figures 1-4, the water-saving valve comprises a valve body 2, a valve seat 3 is arranged in the valve body 2, an inner cavity of the valve body is partitioned into a lower water inlet cavity 2a and an upper water outlet cavity 2b by the valve seat 3, a water passing channel 3a communicating the water inlet cavity 2a and the water outlet cavity 2b is formed in one side of the valve seat 3, a hanging rod 4 stretching along the axial direction of the water passing channel is arranged on the valve seat at one side of the water passing channel 3a, a valve plate 5 positioned right above the water passing channel is fixed on the hanging rod 4 at one side of the water outlet cavity 2b, a sealing gasket 6 covers the lower surface of the valve plate 5, a supporting plate 8 is fixed on the hanging rod 4 at one side of the water inlet cavity 2a, and an elastic part 9 used for sealing and tightly pressing the valve plate 5 on the water passing channel is arranged between the supporting plate 8 and the lower surface of the valve seat 3.

In order to ensure the using effect, the suspender 4 below the sealing gasket is provided with a sealing gasket lower support 7 for fastening the sealing gasket by compression, and the sealing gasket lower support is used for supporting the sealing gasket.

As shown in fig. 5, the hanger rod, the valve plate, the gasket lower support, the support plate, and the elastic member constitute a valve body.

The intake antrum 2a internal fixation has the cartridge filter 10 that is located elastic component 9 outlying, and the main part of cartridge filter is the filter screen, makes the water that the lift post outlet end came out all can discharge the shower nozzle again after passing through the filter screen, and the height of cartridge filter is greater than the biggest extension length of jib, and the equal interval setting of lateral wall and elastic component, the backup pad of cartridge filter, prevents to stretch out and draw back the production influence to the jib.

The area of the valve plate 5 is larger than that of the upper opening of the water passing channel and completely covers the upper opening of the water passing channel, so that the sealing gasket on the lower surface of the valve plate can also completely cover the upper opening of the water passing channel, and the function of one-way sealing is achieved.

The check valve is arranged at the water inlet end of the rotary spray head of the multifunctional fertigation system, and the water outlet direction of the check valve faces to the water inlet end of the rotary spray head.

The lower end of the valve body where the water inlet cavity 2a is located is connected with a water inlet connector pipe 1, the water inlet connector pipe 1 is in threaded connection with the valve body, a sealing ring can be arranged between the water inlet connector pipe and the valve body to prevent water leakage and air leakage, the water inlet connector pipe is used for being conveniently in threaded connection with a water outlet end of the lifting column, and the upper end of the valve body where the water outlet cavity 2b is located can be provided with threads connected with a rotary spray head or a joint pipe corresponding to installation.

When the sealing pad on the valve plate 5 is pressed on the upper opening of the water passing channel, the elastic piece is in a compressed state.

Elastic component 9 compression is between backup pad and disk seat lower surface, elastic component 9 is prior art, if can be the bounce ball that adopts rubber to make, adopts the spring to make etc. when not receiving external force, the elastic component all is compression state to exert axial force to the jib, compress tightly the valve plate on the jib on water channel, play sealed effect. The elasticity of elastic component satisfies and compresses under the water pump effect and opens the valve plate, loses water pressure back, and under the effect of elastic component restoring force, the valve plate resets, and sealed the pad compresses tightly sealed water channel again.

When the multifunctional irrigation and fertilization system is used, the water inlet connector tube 1 is connected with the water outlet end of the lifting column of the multifunctional irrigation and fertilization system, the water outlet end of the water outlet cavity of the valve body is connected with the water inlet end of the rotary spray head of the multifunctional irrigation and fertilization system, as shown in figure 4, when the water inlet cavity receives pressure along the water inlet direction (upward), the elastic part is continuously compressed under the action of water pressure, the suspender slides upwards along the axial direction of the water passage, the valve plate and the sealing gasket are separated from the upper opening of the water passage, the water passage is opened, as shown in the arrow 11 direction of figure 4, water enters the water outlet cavity from the water inlet cavity through the filter cartridge and the water passage and finally enters the rotary spray head for irrigation, after the irrigation is completed, the water pump of the system is closed, the water inlet cavity loses pressure, the suspender slides downwards along the axial direction of the water passage under the action of elastic restoring force, the sealing gasket on the lower surface of the valve plate is sealed and pressed on the upper opening of the water passage again, the water passage is closed, and the lifting column can be successfully retracted under negative pressure. Compared with the prior art, the valve plate is controlled to open and close the one-way valve through the elastic piece, the elastic piece is in a compressed state when water pressure is not applied, so that axial force is applied to the suspender, the valve plate on the suspender is tightly pressed and sealed on the water passing channel, the sealing effect is achieved, when water pressure in the water incoming direction is received, the elastic piece is continuously compressed under the action of the water pressure, the water passing channel is opened, water enters the rotary spray head for irrigation, and therefore one-way water passing is achieved.

Claims (6)

1. A one-way valve used at the water outlet end of a lifting column of a multifunctional irrigation system, which comprises a valve body (2), the water-saving valve is characterized in that a valve seat (3) is arranged in a valve body (2), the valve seat (3) separates an inner cavity of the valve body into a water inlet cavity (2a) below and a water outlet cavity (2b) above, one side of the valve seat (3) is provided with a water passing channel (3a) communicated with the water inlet cavity (2a) and the water outlet cavity (2b), a suspender (4) axially extending along the water passing channel is arranged on the valve seat on one side of the water passing channel (3a), a valve plate (5) directly above the water passing channel is fixed on the suspender (4) on one side of the water outlet cavity (2b), the lower surface of the valve plate (5) is covered with a sealing gasket (6), a supporting plate (8) is fixed on the suspender (4) on one side of the water inlet cavity (2a), and an elastic part (9) used for sealing and pressing the valve plate (5) on the water passing channel is arranged between the supporting plate (8) and the lower surface of the valve seat (3).

2. The check valve for the water outlet end of the multifunctional irrigation system lifting column as recited in claim 1, wherein the suspension rod (4) below the sealing gasket is provided with a sealing gasket lower support (7) for fixing the sealing gasket by pressing.

3. A check valve for the outlet end of a multifunctional irrigation system lifting column as claimed in claim 1, characterized in that a filter cartridge (10) positioned at the periphery of the elastic member (9) is fixed in the inlet chamber (2 a).

4. The check valve for the water outlet end of the multifunctional irrigation system lifting column as recited in claim 1, wherein the check valve is disposed at the water inlet end of the rotating nozzle of the multifunctional fertigation system, and the water outlet direction of the check valve faces the water inlet end of the rotating nozzle.

5. The one-way valve for the water outlet end of the multifunctional irrigation system lifting column is characterized in that the lower end of the valve body where the water inlet cavity (2a) is located is connected with a water inlet connector pipe (1).

6. The one-way valve for the water outlet end of the multifunctional irrigation system lifting column is characterized in that the elastic piece is in a compressed state when the sealing gasket on the valve plate (5) is pressed on the upper opening of the water passing channel.

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