Sewage valve

Abstract

The utility model discloses a sewage valve which comprises a valve body, the top face of the valve body is vertically and fixedly connected with a vertical part, one end of the valve body is provided with a liquid inlet flow channel, the other end of the valve body is provided with a liquid drainage flow channel, the interior of the valve body is horizontally and fixedly connected with an annular valve seat, and the liquid inlet flow channel is communicated with the interior of the valve body and located below the annular valve seat. The liquid discharging flow channel is communicated with the interior of the valve body and located above the annular valve seat, the valve rod is vertically and movably connected into the vertical part, the bottom end of the valve rod is located in the valve body and fixedly connected with the valve element, the valve element is in a conical shape, the area of the bottom end of the valve element is smaller than that of the top end of the valve element, and the valve element is connected with the middle of the annular valve seat in a sleeved mode. The annular valve seat is in an annular shape, the valve element is in a conical shape, when the valve element is closed, the contact position is a round line, the contact area is small, the valve element is not prone to being blocked by particles, when the valve element is pressed downwards, the valve element can rotate to press downwards, even if a small number of particles exist, the particles can be crushed easily under the rotating downward pressure, the sealing quality is guaranteed, and the valve element is more suitable for being used by sewage media.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically a sewage valve. Background Technology

[0002] Valves are pipeline accessories used to open and close pipes, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Valves used in sewage pipelines are called sewage valves. For example, Chinese utility model application CN106555897A discloses a sewage-specific valve. It consists of a valve body, a wrench, and a valve core. The valve body is divided into an inner valve body and an outer valve body, with an antifreeze layer between them. Pure water is placed inside the antifreeze layer, and a temperature controller is installed on the valve body. However, current sewage valves have the following drawbacks:

[0003] Wastewater media differs from ordinary water media, containing more particulate impurities. When current valves are closed, the valve core and valve seat are in contact on one surface, resulting in a large contact area that is easily blocked by particulate impurities, leading to a decrease in sealing performance when closed.

[0004] Therefore, we propose a sewage valve to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a sewage valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sewage valve, comprising a valve body, a vertical part fixedly connected to the top surface of the valve body, an inlet channel at one end of the valve body, a drain channel at the other end of the valve body, an annular valve seat fixedly connected horizontally inside the valve body, the inlet channel connecting to the inside of the valve body at a position below the annular valve seat, the drain channel connecting to the inside of the valve body at a position above the annular valve seat, a valve stem vertically and movably connected inside the vertical part, the bottom end of the valve stem being located inside the valve body and fixedly connected to a valve core, the valve core being conical in shape, the bottom area of ​​the valve core being smaller than the top area, and the valve core being fitted into the middle of the annular valve seat.

[0007] An inlet baffle is fixedly attached to the top surface of the annular valve seat near the inlet channel, and a drain baffle is fixedly attached to the bottom surface of the annular valve seat near the drain channel.

[0008] Preferably, a rotating block is rotatably connected to the top of the vertical part, a splined rod is fixedly connected to the bottom shaft end of the rotating block, the splined rod is located inside the vertical part, a spline groove is formed at the top of the valve stem, and the splined rod is slidably inserted into the spline groove.

[0009] Preferably, an inner cavity is formed inside the vertical part, a threaded sleeve is fixedly sleeved inside the inner cavity, a constricted part is formed inside the valve stem at the position of the inner cavity, a lead screw is fixedly sleeved on the constricted part, the lead screw is threadedly connected to the threaded sleeve, and packing is fixedly connected inside the vertical part, the packing contacting the outer wall of the valve stem.

[0010] Preferably, the wrench is horizontally fixed to the side wall of the rotating block, and a locking rod is rotatably connected to the bottom surface of the wrench. A spring is fixed between the top surface of the locking rod away from the vertical part and the bottom surface of the wrench.

[0011] Preferably, an arc plate is fixed to one end of the locking lever near the vertical part, and multiple locking teeth are uniformly fixed to the side wall of the arc plate. A ring plate is fixedly sleeved at the top of the vertical part, and multiple tooth blocks are uniformly fixed to the periphery of the ring plate. The multiple locking teeth engage with the multiple tooth blocks at any position.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model features an annular valve seat with a conical valve core. When closed, the contact area is a circle, resulting in a small contact area that is less likely to be blocked by particles. Furthermore, when the valve core is pressed down, it rotates downwards, easily crushing even small amounts of particles under the downward pressure, ensuring sealing quality and making it more suitable for use with sewage media. Attached Figure Description

[0014] Figure 1 These are schematic diagrams of the main structure in the first and second embodiments of this utility model;

[0015] Figure 2 These are schematic diagrams of the main body cross-section structure in the first and second embodiments of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram of the structure at point A.

[0017] In the diagram: 1. Valve body; 2. Vertical section; 3. Annular valve seat; 4. Inlet channel; 5. Drain channel; 6. Valve stem; 7. Valve core; 8. Inlet baffle; 9. Drain baffle; 10. Rotary block; 11. Wrench; 12. Splined rod; 13. Splined groove; 14. Inner cavity; 15. Threaded sleeve; 16. Narrow section; 17. Lead screw; 18. Locking rod; 19. Spring; 20. Arc plate; 21. Locking teeth; 22. Ring plate; 23. Tooth block; 24. Packing. Detailed Implementation

[0018] 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.

[0019] Example 1:

[0020] Please see Figure 1-2 This utility model provides a technical solution: a sewage valve, including a valve body 1, a vertical part 2 vertically fixed to the top surface of the valve body 1, an inlet channel 4 at one end of the valve body 1, and a drain channel 5 at the other end of the valve body 1, a horizontally fixed annular valve seat 3 inside the valve body 1, the inlet channel 4 connecting to the interior of the valve body 1 below the annular valve seat 3, and the drain channel 5 connecting to the interior of the valve body 1 above the annular valve seat 3, and a valve stem 6 vertically movably connected inside the vertical part 2. The bottom end of valve 6 is located inside valve body 1 and is fixed to valve core 7. Valve core 7 is conical in shape, and the area of ​​the bottom end of valve core 7 is smaller than the area of ​​the top end. Valve core 7 is sleeved on the middle of annular valve seat 3. Annular valve seat 3 is annular in shape, and valve core 7 is conical in shape. When closed, the contact position is a circle, with a small contact area, which is not easily blocked by particles. Moreover, when valve core 7 is pressed down, it will rotate and press down. Even if there are a small number of particles, they are easily crushed under the downward pressure of rotation, ensuring sealing quality and making it more suitable for sewage media.

[0021] Example 2:

[0022] Please see Figure 1-3 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The top surface of the annular valve seat 3 near the liquid inlet channel 4 is fixedly connected to the liquid inlet baffle 8, and the bottom surface of the annular valve seat 3 near the liquid outlet channel 5 is fixedly connected to the liquid outlet baffle 9.

[0023] The top of the vertical part 2 is rotatably connected to the rotating block 10, and the bottom shaft end of the rotating block 10 is fixedly connected to the spline rod 12. The spline rod 12 is located inside the vertical part 2. The top of the valve stem 6 has a spline groove 13, and the spline rod 12 is slidably inserted into the spline groove 13.

[0024] An inner cavity 14 is formed inside the vertical part 2. A threaded sleeve 15 is fixedly sleeved inside the inner cavity 14. A constricted part 16 is formed inside the valve stem 6 located in the inner cavity 14. A lead screw 17 is fixedly sleeved on the constricted part 16. The lead screw 17 is threadedly connected to the threaded sleeve 15. A packing 24 is fixedly connected inside the vertical part 2. The packing 24 contacts the outer wall of the valve stem 6.

[0025] The wrench 11 is horizontally fixed to the side wall of the rotating block 10. The bottom surface of the wrench 11 is rotatably connected to the locking rod 18. A spring 19 is fixed between the top surface of the locking rod 18 away from the vertical part 2 and the bottom surface of the wrench 11.

[0026] The locking lever 18 is fixed to an arc plate 20 near one end of the vertical part 2. Multiple locking teeth 21 are evenly fixed to the side wall of the arc plate 20. The top of the vertical part 2 is fixed to a ring plate 22. Multiple tooth blocks 23 are evenly fixed to the periphery of the ring plate 22. The multiple locking teeth 21 are engaged with the multiple tooth blocks 23 at any position. By rotating the lever 10 with the wrench 11, the valve stem 6 is driven to rotate. Under the action of the screw 17, the valve stem 6 moves down to achieve the function of flow regulation and closure.

[0027] Example 3:

[0028] Please see Figure 1-3 This is the third embodiment of the present invention. This embodiment is based on the conveying pipe embodiment. When adjusting or closing the flow rate, the locking lever 18 and the wrench 11 are held and rotated to drive the valve core 7 to rotate and move. After completion, the locking lever 18 is released, and the locking teeth 21 are used to lock the tooth block 23 to form a fixed position. The annular valve seat 3 of the present invention is annular in shape, and the valve core 7 is conical in shape. When closed, the contact position is a circle, with a small contact area, which is not easily blocked by particles. Moreover, when the valve core 7 is pressed down, it rotates and presses down. Even if there are a small number of particles, they are easily crushed under the downward pressure of rotation, ensuring the sealing quality and making it more suitable for sewage media.

[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewage valve, comprising a valve body (1), characterized in that: The valve body (1) is vertically fixed to the top surface of the vertical part (2). One end of the valve body (1) has an inlet channel (4) and the other end has a drain channel (5). The valve body (1) is horizontally fixed to the inside of the annular valve seat (3). The inlet channel (4) is connected to the inside of the valve body (1) below the annular valve seat (3). The drain channel (5) is connected to the inside of the valve body (1) above the annular valve seat (3). The valve stem (6) is vertically movably connected inside the vertical part (2). The bottom end of the valve stem (6) is located inside the valve body (1) and fixed to the valve core (7). The valve core (7) is conical in shape. The area of ​​the bottom end of the valve core (7) is smaller than the area of ​​the top end. The valve core (7) is fitted into the middle of the annular valve seat (3).

2. A sewage valve according to claim 1, characterized in that: The annular valve seat (3) has an inlet baffle (8) fixed to the top surface near the inlet channel (4), and a drain baffle (9) fixed to the bottom surface near the drain channel (5).

3. A sewage valve according to claim 1, characterized in that: The top of the vertical part (2) is rotatably connected to the rotating block (10), and the bottom shaft end of the rotating block (10) is fixedly connected to the spline rod (12). The spline rod (12) is located inside the vertical part (2). The top of the valve stem (6) is provided with a spline groove (13), and the spline rod (12) is slidably inserted into the spline groove (13).

4. A sewage valve according to claim 3, characterized in that: The vertical part (2) has an inner cavity (14) inside, and a threaded sleeve (15) is fixedly sleeved inside the inner cavity (14). The valve stem (6) has a constricted part (16) inside the inner cavity (14), and a screw rod (17) is fixedly sleeved on the constricted part (16). The screw rod (17) is threadedly connected to the threaded sleeve (15). The vertical part (2) has a packing (24) fixedly connected inside, and the packing (24) contacts the outer wall of the valve stem (6).

5. A sewage valve according to claim 3, characterized in that: The side wall of the rotating block (10) is horizontally fixed to a wrench (11), and the bottom surface of the wrench (11) is rotatably connected to a locking rod (18). A spring (19) is fixed between the top surface of the locking rod (18) away from the vertical part (2) and the bottom surface of the wrench (11).

6. A sewage valve according to claim 5, characterized in that: The locking lever (18) is fixed to an arc plate (20) at one end near the vertical part (2). Multiple locking teeth (21) are evenly fixed to the side wall of the arc plate (20). A ring plate (22) is fixedly sleeved at the top of the vertical part (2). Multiple tooth blocks (23) are evenly fixed to the periphery of the ring plate (22). The multiple locking teeth (21) engage with the multiple tooth blocks (23) at any position.

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