Water supply and drainage control valve

Abstract

The utility model discloses a water supply and drainage control valve which comprises a valve body, a valve element is arranged at the position of a channel in the valve body, the top of the valve element is connected with a valve rod, a valve cover is fixedly installed at the top of the valve body above the valve element through a bolt, the top of the valve rod penetrates out of the valve cover and is fixedly connected with a handle, and a filtering part is arranged below the input end of the valve body. A clamping groove is formed in the filtering part of the valve body, a filtering mechanism is arranged in the filtering part, when the valve is used, water flowing through the valve body passes through the filtering part and is filtered by a filtering net in the filtering mechanism installed in the filtering part, impact of impurities in the water on a valve element in the valve body is reduced, and the risk of being blocked is reduced; the blades in the filter screen are scoured by water flow, so that the blades rotate to stir impurities obtained by filtering, filtered objects attached to the filter screen are reduced, the filtering efficiency of the filter screen is improved, and meanwhile, the rotating blades scrape off the impurities attached to the inner wall of the filter screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of control valve technical field, specifically a kind of water supply and drainage control valve. BACKGROUND

[0002] Municipal engineering refers to municipal facilities construction engineering, in our country, municipal facilities refers to the planning and construction range in city area, town (village) is set, based on government responsibility and obligation for residents to provide various buildings, structures, equipment etc.

[0003] However, the current water supply and drainage control valve is used, because the water flow through the control valve can carry impurities, too many impurities can impact the valve core of control valve, and the impurities carried can cause the blockage of valve, for the above problems, a kind of water supply and drainage control valve is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of water supply and drainage control valve to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of water supply and drainage control valve, including valve body, the valve body is provided with valve core in passage, valve core top is connected with valve rod, valve body top is fixedly installed with valve cover above valve core by bolt, valve rod top is fixedly connected with handle and penetrates out valve cover, valve body is provided with filter part below input end, valve body is provided with clamping groove in filter part, filter mechanism is provided in filter part, the front end of filter mechanism is inserted into clamping groove, filter mechanism is fixedly connected with the filter part of valve body by bolt.

[0007] As a further scheme of the utility model: the filter mechanism includes that the filter screen is fixedly installed in the side wall of connecting plate, the filter screen is barrel-shaped, the filter screen front end is fixedly connected with the clamping ring, the filter screen is built-in in filter part, the clamping ring is clamped in clamping groove, and connecting plate is fixedly connected with the filter part of valve body by bolt.

[0008] As a further scheme of the utility model: the side wall of connecting plate is rotatably connected with the rotating shaft in filter screen, the rotating shaft side wall is fixedly installed with multiple spiral blades according to circumference, the clamping ring is provided with connecting cap, the connecting cap is rotatably connected with the rotating shaft, the connecting cap side wall is fixedly connected with multiple connecting rods according to circumference evenly, and the other end of connecting rod is fixedly connected with the inner wall of clamping ring.

[0009] As a further improvement of this utility model: the valve body has an inspection port below the valve core, and a bottom cover is fixedly installed at the inspection port at the bottom of the valve body by bolts.

[0010] As a further embodiment of this utility model: a guide rod is fixedly connected to the bottom end of the valve core, and a guide hole adapted to the guide rod is opened on the bottom cover. The bottom end of the guide rod is built into the guide hole, and the guide rod is slidably connected to the inner wall of the guide hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In use, the water flowing through the valve body passes through the filter section and is filtered by the filter screen in the filter mechanism installed inside the filter section, reducing the impact of impurities in the water flow on the valve core inside the valve body and reducing the risk of clogging. At the same time, the blades inside the filter screen are washed by the water flow, causing the blades to rotate and stir the filtered impurities, reducing the amount of filtered material adhering to the filter screen, which is beneficial to the filtration efficiency of the filter screen. Meanwhile, the rotating blades scrape off the impurities attached to the inner wall of the filter screen.

[0013] 2. This utility model increases the stability of the valve core when subjected to the impact of flowing water by using a guide rod fixedly connected to the bottom end of the valve core and a guide hole opened in the bottom cover. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of a water supply and drainage control valve.

[0015] Fig. 2 This is a cross-sectional view of a water supply and drainage control valve.

[0016] Fig. 3 This is a cross-sectional view of a filter mechanism in a water supply and drainage control valve.

[0017] Fig. 4 This is a longitudinal sectional view of a filter mechanism in a water supply and drainage control valve.

[0018] In the diagram: 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Handle; 5. Bottom cover; 6. Filter section; 7. Filter mechanism; 8. Valve core; 9. Inspection port; 10. Guide hole; 11. Guide rod; 12. Slot; 13. Connecting plate; 14. Filter screen; 15. Snap ring; 16. Connecting rod; 17. Connecting cap; 18. Rotating shaft; 19. Blade. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figs. 1-4 In this embodiment of the utility model, a water supply and drainage control valve includes a valve body 1. A valve core 8 is provided in the channel of the valve body 1. A valve stem 3 is connected to the top of the valve core 8. A valve cover 2 is fixedly installed on the top of the valve body 1 above the valve core 8 by bolts. A handle 4 is fixedly connected to the top of the valve stem 3 through the valve cover 2. A filter part 6 is provided below the input end of the valve body 1. A slot 12 is opened in the filter part 6 of the valve body 1. A filter mechanism 7 is provided in the filter part 6. The front end of the filter mechanism 7 is inserted into the slot 12. The filter mechanism 7 is fixedly connected to the filter part 6 of the valve body 1 by bolts.

[0021] In use, the operator drives the valve core 8 up and down via the valve stem 3 through the handle 4 to control the opening and closing of the valve. The water flowing through the valve body 1 passes through the filter section 6 and is filtered by the filter mechanism 7 installed inside the filter section 6, reducing the impact of impurities in the water flow on the valve core 8 inside the valve body 1 and reducing the risk of blockage.

[0022] The filtration mechanism 7 includes a filter screen 14 fixedly installed on the side wall of the connecting plate 13. The filter screen 14 is barrel-shaped, and a retaining ring 15 is fixedly connected to the front end of the filter screen 14. The filter screen 14 is built into the filtration section 6, and the retaining ring 15 is engaged in the retaining groove 12. The connecting plate 13 is fixedly connected to the filtration section 6 of the valve body 1 by bolts. In use, the water flows through the filter screen 14 installed in the filtration section 6 to filter the water flow. The impurities produced by filtration are stored in the filter screen 14, and the retaining ring 15 fixedly connected to the end of the filter screen 14 is engaged in the retaining groove 12 in the filtration section 6 of the valve body 1, which increases the stability of the filter screen 14.

[0023] The connecting plate 13 is rotatably connected to a rotating shaft 18 inside the filter screen 14. Multiple spiral blades 19 are fixedly installed on the side wall of the rotating shaft 18 in a circumferential manner. The outer edge of the blades 19 is in contact with the inner wall of the filter screen 14. A connecting cap 17 is provided inside the retaining ring 15. The connecting cap 17 is rotatably connected to the rotating shaft 18. Multiple connecting rods 16 are evenly fixedly connected to the side wall of the connecting cap 17 in a circumferential manner. The other end of the connecting rod 16 is fixedly connected to the inner wall of the retaining ring 15. During use, the blades 19 are washed by the water flow, causing the blades 19 to rotate and stir the impurities obtained by filtration, reducing the amount of filtered material adhering to the filter screen 14, which is beneficial to the filtration efficiency of the filter screen 14. At the same time, the rotating blades 19 scrape off the impurities attached to the inner wall of the filter screen 14.

[0024] The valve body 1 has an inspection port 9 below the valve core 8. A bottom cover 5 is fixedly installed at the inspection port 9 at the bottom of the valve body 1 by bolts. By opening the inspection port 9 at the bottom of the valve body 1 and removing the bottom cover 5 fixedly installed at the inspection port 9 by bolts, it is convenient to clean and maintain the inside of the valve body 1.

[0025] The bottom end of the valve core 8 is fixedly connected to a guide rod 11. The bottom cover 5 has a guide hole 10 that matches the guide rod 11. The bottom end of the guide rod 11 is built into the guide hole 10, and the guide rod 11 is slidably connected to the inner wall of the guide hole 10. Through the cooperation of the guide rod 11 and the guide hole 10, the stability of the valve core 8 is increased when subjected to the impact of the passing water flow.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water supply and drainage control valve, comprising a valve body (1), characterized in that: The valve body (1) has a valve core (8) in the internal channel. A valve stem (3) is connected to the top of the valve core (8). A valve cover (2) is fixedly installed on the top of the valve body (1) above the valve core (8) by bolts. A handle (4) is fixedly connected to the top of the valve stem (3) through the valve cover (2). A filter section (6) is provided below the input end of the valve body (1). A slot (12) is opened in the filter section (6) of the valve body (1). A filter mechanism (7) is provided in the filter section (6). The front end of the filter mechanism (7) is inserted into the slot (12). The filter mechanism (7) is fixedly connected to the filter section (6) of the valve body (1) by bolts.

2. The water supply and drainage control valve according to claim 1, characterized in that: The filtering mechanism (7) includes a filter screen (14) fixedly installed on the side wall of the connecting plate (13). The filter screen (14) is barrel-shaped. A retaining ring (15) is fixedly connected to the front end of the filter screen (14). The filter screen (14) is built into the filtering part (6). The retaining ring (15) is locked in the retaining groove (12). The connecting plate (13) is fixedly connected to the filtering part (6) of the valve body (1) by bolts.

3. A water supply and drainage control valve according to claim 2, characterized in that: The side wall of the connecting plate (13) is rotatably connected to the rotating shaft (18) inside the filter screen (14). Multiple spiral blades (19) are fixedly installed on the side wall of the rotating shaft (18) in a circular pattern. A connecting cap (17) is provided inside the retaining ring (15). The connecting cap (17) is rotatably connected to the rotating shaft (18). Multiple connecting rods (16) are evenly fixedly connected on the side wall of the connecting cap (17) in a circular pattern. The other end of the connecting rod (16) is fixedly connected to the inner wall of the retaining ring (15).

4. A water supply and drainage control valve according to claim 1, characterized in that: The valve body (1) has an inspection port (9) below the valve core (8), and a bottom cover (5) is fixedly installed at the inspection port (9) at the bottom of the valve body (1) by bolts.

5. A water supply and drainage control valve according to claim 1, characterized in that: The bottom end of the valve core (8) is fixedly connected to a guide rod (11), and the bottom cover (5) is provided with a guide hole (10) that matches the guide rod (11). The bottom end of the guide rod (11) is built into the guide hole (10), and the guide rod (11) is slidably connected to the inner wall of the guide hole (10).

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