CN221097509U - Leak-proof plastic valve - Google Patents

Abstract

The utility model discloses a leakage-proof plastic valve, which comprises a valve body, a valve cavity, a screw and a valve core, wherein the valve cavity is arranged in the valve body, a water outlet is arranged on the right side of the valve cavity, the outer end of the valve body is connected with a flange plate, a waterproof sealing ring is arranged at the joint of the water inlet and the valve body, a connecting block is arranged at the top of the valve cavity, a rotating block is connected at the top of the screw, the lower part of the screw is connected with the valve core, a mounting groove is arranged at the bottom of the connecting block, a limiting groove is arranged at the outer side of the valve core, a diaphragm is arranged on the upper surface of the bottom of the limiting groove, limiting blocks fixed at the bottom of the valve cavity are arranged at the left side and the right side of the bottom of the valve core, a rubber pad is arranged on the inner side of the limiting blocks, a buffer spring is connected at the bottom of the valve core, and a sealing block is arranged at the lower part of the sealing layer. The leakproof plastic valve is convenient to improve the sealing performance of the joint of the water pipe and the valve and flexible to use.

Description

Leak-proof plastic valve

Technical Field

The utility model relates to the technical field of plastic valves, in particular to a leakage-proof plastic valve.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow rate) of a conveying medium. Plastic valves are widely used in agricultural irrigation and in many cases it is desirable that the plastic valve be easily connected and disconnected from a water line.

The existing plastic valve has poor sealing performance at the joint of the water pipe and the valve, and the use mode is single, for example, the Chinese patent utility model with the publication number of CN204512454U discloses a leakage-proof water pipe valve, and in the use process, the leakage-proof plastic valve is inconvenient to effectively seal by arranging a waterproof sealing ring at the joint of a water inlet and the valve, so that the leakage-proof plastic valve is convenient to solve the problems.

Disclosure of utility model

The utility model aims to provide a leakage-proof plastic valve, which solves the problems that in the prior art, the sealing performance of the joint of a water pipe and the valve is poor and the use mode is single.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including valve body, valve pocket, screw rod and case, the inside of valve body is provided with the valve pocket, and the left side of valve pocket is provided with the water inlet, the right side of valve pocket is provided with the delivery port, the outer end of valve body is connected with the ring flange, the junction of water inlet and valve body is provided with waterproof sealing circle, the top of valve pocket is provided with the connecting block, and the internal connection of connecting block has the screw rod, the top of screw rod is connected with the rotating block, the lower part of screw rod is connected with the case, the bottom of connecting block is provided with the mounting groove, the outside of case is provided with the spacing groove, and the bottom upper surface of spacing groove is provided with the diaphragm, the bottom left and right sides of case is provided with the stopper of fixing in the valve pocket bottom, and the medial surface of stopper is provided with the rubber pad, the bottom of case is connected with buffer spring, and buffer spring's lower part is provided with the sealing layer, the lower part of sealing layer is provided with the sealing block.

Preferably, the screw rod is connected with the connecting block in a threaded manner.

Preferably, the water outlet is connected with the valve body through a flange plate.

Preferably, the longitudinal section of the waterproof sealing ring is of an L-shaped structure.

Preferably, the lower end of the diaphragm is fixedly connected with the limiting groove, and the upper end of the diaphragm is fixedly connected with the periphery of the valve core.

Preferably, a lubricating layer is arranged at the joint of the limiting groove and the valve core.

Compared with the prior art, the utility model has the beneficial effects that: the leakproof plastic valve is convenient to improve the tightness of the joint of the water pipe and the valve and flexible to use;

1. The water pipe is connected with the valve body through the flange plate, and the waterproof sealing ring is arranged at the joint of the water inlet and the valve body, so that the water pipe is convenient and effective in leakage prevention;

2. The rotary block, the screw and the valve core are arranged, and the screw is driven to rotate and descend in the connecting block by rotating the rotary block, so that the valve core descends in the valve cavity, and the valve core is convenient to adjust to control the switch of the valve;

3. The valve core is provided with a limiting groove, a diaphragm, a sealing layer and a sealing block, when the valve core descends to the bottom end of the valve cavity, the sealing layer and the sealing block at the bottom end effectively prevent leakage, and the limiting groove and the diaphragm arranged at the outer side of the upper end of the valve core can effectively prevent leakage.

Drawings

FIG. 1 is a schematic view of the front cut-away structure of the present utility model;

FIG. 2 is a schematic side view in cross-section of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 1a according to the present utility model.

In the figure: 1. a valve body; 2. a valve cavity; 3. a water inlet; 4. a water outlet; 5. a flange plate; 6. a waterproof sealing ring; 7. a connecting block; 8. a screw; 9. a rotating block; 10. a valve core; 11. a mounting groove; 12. a limit groove; 13. a diaphragm; 14. a limiting block; 15. a rubber pad; 16. a buffer spring; 17. a sealing layer; 18. and a sealing block.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Unless the directions indicated by the individual definitions are defined, the directions of up, down, left, right, front, rear, etc. referred to herein are all directions of up, down, left, right, front, rear, etc. in the drawings shown in the present utility model, and are described herein together.

Referring to fig. 1-4, the present utility model provides a technical solution: a leak-proof plastic valve comprises a valve body 1, a valve cavity 2, a water inlet 3, a water outlet 4, a flange plate 5, a waterproof sealing ring 6, a connecting block 7, a screw rod 8, a rotating block 9, a valve core 10, a mounting groove 11, a limiting groove 12, a diaphragm 13, a limiting block 14, a rubber pad 15, a buffer spring 16, a sealing layer 17 and a sealing block 18;

when the leak-proof plastic valve is used, as shown in fig. 1, a water pipe passes through the interior of a valve body 1, and the water inlet 3 and the water outlet 4 are connected with the valve body 1 through a flange 5 at the water inlet 3 and the water outlet 4;

by arranging the waterproof sealing ring 6 at the joint of the water inlet 3 and the valve body 1, the leakage prevention can be effectively improved;

When the valve needs to be closed, the screw rod 8 at the lower part of the rotating block 9 rotates and descends in the connecting block 7 through rotating the rotating block 9, the mounting groove 11 connected with the bottom of the screw rod 8 idles in the valve core 10, so that the screw rod 8 rotates and descends to drive the valve core 10 to descend to close the valve, and when the valve needs to be opened, the valve core 10 ascends to open the valve through rotating the rotating block 9 in the opposite direction, and the valve core 10 is conveniently controlled to be opened and closed through adjusting the valve core 10;

Through the lubrication layer that spacing groove 12 and case 10 junction set up, can make the continuous multiple rising of case 10 descend and reduce the wearing and tearing to case 10, thereby the life of case 10 is prolonged, diaphragm 13 and case 10 fixed connection that spacing groove 12 bottom upper surface set up, when case 10 removed, effectively prevent that water from spilling from case 10 upper portion, stopper 14 through valve pocket 2 bottom setting can effectively inject case 10 and prevent the skew, rubber pad 15 that stopper 14 and case 10 junction set up can play the leak protection effect, when case 10 descends to the mounting groove of valve pocket 2 bottom, sealing block 18 and sealing layer 17 on the mounting groove closely laminate, can effectually improve the leakproofness, the wearing and tearing of case 10 can effectually be reduced to buffer spring 16 that the case 10 bottom set up.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a leak protection type plastic valve, includes valve body (1), valve pocket (2), screw rod (8) and case (10), its characterized in that: the novel valve is characterized in that a valve cavity (2) is arranged in the valve body (1), a water inlet (3) is formed in the left side of the valve cavity (2), a water outlet (4) is formed in the right side of the valve cavity (2), a flange plate (5) is connected to the outer end of the valve body (1), a waterproof sealing ring (6) is arranged at the joint of the water inlet (3) and the valve body (1), a connecting block (7) is arranged at the top of the valve cavity (2), a screw rod (8) is connected to the inside of the connecting block (7), a rotating block (9) is connected to the top of the screw rod (8), a valve core (10) is connected to the lower portion of the screw rod (8), an installation groove (11) is formed in the bottom of the connecting block (7), a limit groove (12) is formed in the outer side of the valve core (10), and a diaphragm (13) is arranged on the upper surface of the bottom of the limit groove (12).

Limiting blocks (14) fixed at the bottom of the valve cavity (2) are arranged on the left side and the right side of the bottom end of the valve core (10), rubber pads (15) are arranged on the inner side faces of the limiting blocks (14), a buffer spring (16) is connected to the bottom of the valve core (10), a sealing layer (17) is arranged on the lower portion of the buffer spring (16), and a sealing block (18) is arranged on the lower portion of the sealing layer (17).

2. The leak-proof plastic valve of claim 1, wherein: the screw (8) is connected with the connecting block (7) in a threaded manner.

3. The leak-proof plastic valve of claim 1, wherein: the water inlet (3) and the water outlet (4) are connected with the valve body (1) through a flange plate (5).

4. The leak-proof plastic valve of claim 1, wherein: the longitudinal section of the waterproof sealing ring (6) is of an L-shaped structure.

5. The leak-proof plastic valve of claim 1, wherein: the lower end of the diaphragm (13) is fixedly connected with the limiting groove (12), and the upper end of the diaphragm (13) is fixedly connected with the periphery of the valve core (10).

6. The leak-proof plastic valve of claim 1, wherein: a lubricating layer is arranged at the joint of the limiting groove (12) and the valve core (10).