Plastic valve

Abstract

The utility model discloses a plastic valve which comprises a valve body, a square pipe is fixedly arranged in the valve body in a sleeved mode, the top of the square pipe is in threaded connection with a valve cover, a sealing assembly is arranged in the square pipe, a filtering assembly is arranged in the valve body, and a limiting assembly is arranged on one side of the filtering assembly. The sealing assembly comprises an adjusting rod movably arranged in the valve deck in a sleeved mode, an adjusting block is installed on the top of the adjusting rod, a second square plate is fixedly connected to the bottom of the spring, and a sealing body is installed at the bottom of the second square plate. The adjusting block rotates clockwise to drive the adjusting rod to rotate synchronously, the adjusting rod rotates to drive the threaded sleeve and the adjusting rod to move downwards, and the adjusting rod moves downwards to drive the spring at the bottom of the first square plate, the second square plate and the sealing body to move downwards synchronously, so that a sealing groove in the bottom of the sealing body is inserted into the first sealing clip-shaped plug; and at the moment, the spring is compressed, so that the sealing groove and the sealing clip-shaped plug I are matched more tightly.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a plastic valve. Background Art

[0002] Plastic valves are made of plastic materials and are widely used in chemical, pharmaceutical, heavy oil pipelines and other fields. They are famous for their acid and alkali resistance. Valves are devices used to control the direction, pressure and flow of fluids in fluid systems. They are devices that allow the medium in pipes and equipment to flow or stop and control its flow.

[0003] Existing plastic valves have several obvious defects: the valves of the prior art adjust the size of the water flow by rotating the handle, but the existing valves have poor sealing, which often leads to water leakage, resulting in waste of water resources, and the deposition of impurities and dirt on the filter plate, which will cause the valve operation efficiency to decrease. In addition, the filter plate is often installed inside the valve, which is not convenient for cleaning the filter plate and is prone to blockage over a long period of time. Therefore, improvements are now being made to a plastic valve. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a plastic valve, which can quickly seal the valve guide port through a sealing component and clean and fix the filter plate through a limiting component to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the utility model proposes a plastic valve, comprising a valve body, a square tube is fixedly sleeved inside the valve body, a valve cover is threadedly connected to the top of the square tube, a sealing assembly is provided inside the square tube, a filter assembly is provided inside the valve body, and a limit assembly is provided on one side of the filter assembly;

[0006] The sealing assembly includes an adjusting rod movably sleeved inside the valve cover, an adjusting block is installed on the top of the adjusting rod, a threaded sleeve is provided on the external thread of the adjusting rod, a square plate 1 is installed on the bottom of the threaded sleeve, a plurality of springs are provided at the bottom of the square plate 1, a square plate 2 is fixedly connected to the bottom of the spring, and a sealing body is installed at the bottom of the square plate 2.

[0007] Preferably, the filter assembly includes a mounting groove provided inside the valve body, a filter plate is movably sleeved inside the mounting groove, and a sealing plate 1 is fixedly connected to the outside of the filter plate.

[0008] Preferably, the limit assembly includes a mounting seat fixedly mounted on the top of the valve body, the top of the mounting seat is threadedly connected to the limit frame, a locking bolt is provided on the threaded sleeve between the limit frame and the mounting seat, and a screw is provided on the internal threaded sleeve of the limit frame.

[0009] Preferably, a guide plate is installed inside the valve body, a guide port is opened inside the guide plate, a sealing round-shaped plug 1 and a sealing round-shaped plug 2 are provided on the top of the guide port, a sealing groove is opened at the bottom of the sealing body, and the sealing groove is fitted and connected with the sealing round-shaped plug 1.

[0010] Preferably, a second sealing plate is fixedly sleeved inside the square tube, and the threaded sleeve is movably sleeved at the center of the second sealing plate.

[0011] Preferably, an external thread is provided on the outside of the adjusting rod, and the adjusting rod is matched with an internal thread of the threaded sleeve.

[0012] The plastic valve proposed by the utility model can bring the following beneficial effects:

[0013] 1. The clockwise rotation of the adjusting block drives the adjusting rod to rotate synchronously. The rotation of the adjusting rod drives the threaded sleeve and the adjusting rod to move downward. The downward movement of the adjusting rod drives the spring at the bottom of the square plate 1, the square plate 2 and the sealing body to move downward synchronously, so that the sealing groove at the bottom of the sealing body is inserted into the sealing circular plug 1. At this time, the spring is compressed, so that the sealing groove and the sealing circular plug 1 fit more tightly.

[0014] 2. When the filter plate needs to be cleaned regularly, turn the screw clockwise by hand to move the screw upward and away from the sealing plate 1, then turn the locking bolt to loosen the limit frame and the mounting seat and turn the limit frame to move it to the end away from the sealing plate 1, then pull the sealing plate 1 to remove the connected filter plate from the mounting slot for cleaning or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] In the attached figure:

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a plastic valve of the present utility model.

[0018] Figure 2 The figure is a schematic diagram of the internal cross-sectional structure of a plastic valve of the present invention.

[0019] Figure 3 A plastic valve of the utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0020] Figure 4 A plastic valve of the utility model Figure 2Schematic diagram of the structure at point B in the middle.

[0021] Figure 5 A plastic valve of the utility model Figure 2 Schematic diagram of the structure at point C in the middle.

[0022] In the figure: 1. Valve body; 2. Square tube; 3. Valve cover; 4. Adjusting block; 5. Limiting frame; 6. Mounting seat; 7. Filter plate; 8. Sealing plate 1; 9. Screw; 10. Square plate 1; 11. Square plate 2; 12. Spring; 13. Threaded sleeve; 14. Adjusting rod; 15. Sealing body; 16. Sealing groove; 17. Guide port; 18. Sealing circular plug 1; 19. Guide plate; 20. Sealing circular plug 2; 21. Mounting groove; 22. Locking bolt; 23. Sealing plate 2. DETAILED DESCRIPTION

[0023] like Figure 1 and Figure 2 as well as Figure 3 As shown, the embodiment of the utility model provides a plastic valve, including a valve body 1, a square tube 2 is fixedly sleeved inside the valve body 1, a valve cover 3 is threadedly connected to the top of the square tube 2, a sealing assembly is provided inside the square tube 2, a filter assembly is provided inside the valve body 1, and a limit assembly is provided on one side of the filter assembly;

[0024] The sealing assembly includes an adjusting rod 14 movably sleeved inside the valve cover 3, an adjusting block 4 is installed on the top of the adjusting rod 14, an external thread sleeve 13 is provided on the adjusting rod 14, a square plate 10 is installed on the bottom of the threaded sleeve 13, a plurality of springs 12 are provided on the bottom of the square plate 10, a square plate 2 11 is fixedly connected to the bottom of the spring 12, and a sealing body 15 is installed on the bottom of the square plate 2 11.

[0025] like Figure 5 As shown, the filter assembly includes a mounting groove 21 opened inside the valve body 1, and a filter plate 7 is movably sleeved inside the mounting groove 21. A sealing plate 8 is fixedly connected to the outside of the filter plate 7. Impurities in the liquid passing through the valve body 1 are filtered by the filter plate 7, and the sealing plate 8 seals the mounting groove 21 to prevent the liquid from overflowing from the mounting groove 21.

[0026] like Figure 2 and Figure 5 As shown, the limit assembly includes a mounting seat 6 fixedly mounted on the top of the valve body 1, the top of the mounting seat 6 is threadedly connected to the limit frame 5, a locking bolt 22 is provided in the threaded sleeve between the limit frame 5 and the mounting seat 6, and a screw 9 is provided in the internal threaded sleeve of the limit frame 5. The screw 9 is turned clockwise by hand to move the screw 9 upward and disengage from the sealing plate 8, and then the locking bolt 22 is turned so that the locking bolt 22 loosens the limit frame 5 and the mounting seat 6 and rotates the limit frame 5.

[0027] like Figure 3 and Figure 4 As shown, a guide plate 19 is installed inside the valve body 1, and a guide port 17 is opened inside the guide plate 19. A sealing circular plug 18 and a sealing circular plug 2 20 are provided on the top of the guide port 17. A sealing groove 16 is opened at the bottom of the sealing body 15, and the sealing groove 16 is fitted and connected with the sealing circular plug 18. The sealing groove 16 at the bottom of the sealing body 15 is inserted into the sealing circular plug 18. At this time, the spring 12 is compressed, so that the sealing groove 16 and the sealing circular plug 18 fit more tightly.

[0028] like Figure 2 and Figure 3 As shown, a sealing plate 23 is fixedly sleeved inside the square tube 2, and a threaded sleeve 13 is movably sleeved at the center of the sealing plate 23. The sealing plate 23 contacts the square tube 2 and has a good sealing effect on the square tube 2. An external thread is provided on the outside of the adjusting rod 14. The adjusting rod 14 cooperates with the internal thread of the threaded sleeve 13. The threaded sleeve 13, which is threaded on the outside of the adjusting rod 14, is driven to move downward and upward by rotating clockwise and counterclockwise respectively to realize the opening and closing of the liquid.

[0029] Working principle:

[0030] When in use, it is installed and connected between the external pipe and the valve body 1. When the valve body 1 needs to be closed, the adjusting block 4 is rotated clockwise by hand. The clockwise rotation of the adjusting block 4 drives the adjusting rod 14 to rotate synchronously. The rotation of the adjusting rod 14 drives the threaded sleeve 13 and the adjusting rod 14 to move downward. The downward movement of the adjusting rod 14 drives the spring 12 at the bottom of the square plate 10, the square plate 2 11 and the sealing body 15 to move downward synchronously, so that the sealing groove 16 at the bottom of the sealing body 15 is inserted into the sealing circular plug 18. At this time, the spring 12 is compressed, so that the sealing groove 16 and the sealing circular plug 18 fit more tightly, thereby blocking the guide port 17, and the impurities in the liquid passing through the valve body 1 are filtered by the filter plate 7 provided. When the filter plate 7 needs to be cleaned regularly, it is turned clockwise by hand. The needle rotates the screw 9, causing the screw 9 to move upward and disengage from the sealing plate 8, and then rotates the locking bolt 22 so that the locking bolt 22 loosens the limit frame 5 and the mounting seat 6 and rotates the limit frame 5, so that the limit frame 5 is rotated to one end away from the sealing plate 8, and then pulls the sealing plate 8 so that the sealing plate 8 takes out the connected filter plate 7 from the inside of the mounting groove 21 for cleaning or replacement. When the filter plate 7 needs to be installed, the filter plate 7 is inserted into the valve body 1 through the mounting groove 21, so that the sealing plate 8 fits the outside of the valve body 1. At this time, the limit frame 5 is rotated so that the screw 9 on the limit frame 5 is close to one end of the sealing plate 8, and then the limit frame 5 and the mounting seat 6 are fixed by the locking bolt 22, and the screw 9 is rotated counterclockwise so that the bottom of the screw 9 presses the sealing plate 8 tightly.

[0031] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0032] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A plastic valve, comprising a valve body (1), wherein a square tube (2) is fixedly sleeved inside the valve body (1), characterized in that: The top of the square tube (2) is threadedly connected to a valve cover (3), a sealing component is provided inside the square tube (2), a filter component is provided inside the valve body (1), and a limit component is provided on one side of the filter component; The sealing assembly includes an adjusting rod (14) movably sleeved inside the valve cover (3), an adjusting block (4) is installed on the top of the adjusting rod (14), an external thread sleeve (13) is sleeved on the adjusting rod (14), a square plate (10) is installed on the bottom of the thread sleeve (13), a plurality of springs (12) are provided on the bottom of the square plate (10), a square plate (11) is fixedly connected to the bottom of the spring (12), and a sealing body (15) is installed on the bottom of the square plate (11).

2. A plastic valve according to claim 1, characterized in that: The filter assembly comprises a mounting groove (21) provided inside the valve body (1), a filter plate (7) is movably sleeved inside the mounting groove (21), and a sealing plate (8) is fixedly connected to the outside of the filter plate (7).

3. A plastic valve according to claim 1, characterized in that: The limit assembly comprises a mounting seat (6) fixedly mounted on the top of the valve body (1); the top of the mounting seat (6) is threadedly connected to the limit frame (5); a locking bolt (22) is threadedly sleeved between the limit frame (5) and the mounting seat (6); and a screw (9) is threadedly sleeved inside the limit frame (5).

4. A plastic valve according to claim 1, characterized in that: A guide plate (19) is installed inside the valve body (1), a guide port (17) is provided inside the guide plate (19), a sealing reciprocal plug 1 (18) and a sealing reciprocal plug 2 (20) are provided at the top of the guide port (17), a sealing groove (16) is provided at the bottom of the sealing body (15), and the sealing groove (16) is fitted and connected with the sealing reciprocal plug 1 (18).

5. A plastic valve according to claim 1, characterized in that: The interior of the square tube (2) is fixedly sleeved with a second sealing plate (23), and the threaded sleeve (13) is movably sleeved at the center of the second sealing plate (23).

6. A plastic valve according to claim 1, characterized in that: The outside of the adjusting rod (14) is provided with an external thread, and the adjusting rod (14) is matched with the internal thread of the threaded sleeve (13).

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