Sewage discharge gate valve

Abstract

The utility model relates to a blow-down gate valve which comprises a valve body, a valve seat is arranged in the valve body, a valve cover is arranged at the upper end of the valve body, a support is arranged on the valve cover, a valve rod is connected in the support in a threaded mode, a hand wheel is arranged on the valve rod, and the lower end of the valve rod penetrates through the valve cover and the valve body to be rotationally connected with a gate plate. A filter plate and a fixing frame are arranged in the water inlet channel, a rotating rod is rotationally arranged on the fixing frame, one end of the rotating rod penetrates through the filter plate to be connected with a first cleaning brush, second cleaning brushes are arranged at the two ends of the first cleaning brush respectively, a driven bevel gear is arranged at one end of the rotating rod, the driven bevel gear is in meshed connection with a driving bevel gear, and the driving bevel gear is fixedly connected with a rotating shaft. A collecting chamber is arranged at the lower end of the water inlet channel, water entering the gate valve can be conveniently filtered to remove impurities, the filter plate can be self-cleaned, fluid dirt can be conveniently discharged from the bottom of the gate valve, and meanwhile the whole gate valve can be conveniently connected with an external pipeline.

Description

Technical Field

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

[0002] With the continuous development of my country's economy and the accelerating pace of industrial growth, industrial concentration is gradually emerging. Valves have become a vital component in daily life and manufacturing processes. Gate valves are a type of valve and are commonly used in pipeline installation. During use, existing sewage gate valves often contain solid impurities in the fluid medium of the pipeline. The presence of impurities in the pipeline fluid medium has a significant impact on the pipeline and gate valve, causing accelerated wear and aging of the internal parts of the gate valve, thereby reducing the internal sealing of the gate valve and shortening the service life of the entire gate valve.

[0003] Secondly, during the use of the existing sewage gate valve, a large part of the fluid dirt in the pipeline will enter the bottom of the valve body through the channel between the gate, the valve seat and the valve body, and accumulate at the bottom of the valve body, causing the gate to be unable to move down and close in place. If the dirt is not removed in time, it will affect the normal operation and service life of the flat gate valve, causing economic losses. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the existing technology, the utility model provides a sewage gate valve, which solves the problem that during the use of the existing sewage gate valve, the presence of impurities in the pipeline fluid medium brings great impact to the pipeline and the gate valve, causing the internal parts of the gate valve to wear and age faster.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage gate valve, comprising a valve body, a valve seat is arranged in the valve body, a valve cover is arranged on the upper end of the valve body, a bracket is arranged on the valve cover, a valve stem is connected to the inner thread of the bracket, a hand wheel is arranged on the valve stem, the lower end of the valve stem passes through the valve cover and is rotatably connected to the gate plate of the valve body, a water inlet channel and a water outlet channel are respectively provided at both ends of the valve body, a filter plate and a fixing frame are arranged in the water inlet channel, a rotating rod is rotatably provided on the fixing frame, one end of the rotating rod passes through the filter plate and is connected to a first cleaning brush, a second cleaning brush is respectively provided at both ends of the first cleaning brush, A driven bevel gear is provided at one end of the rotating rod, and the driven bevel gear is meshedly connected with a driving bevel gear, and the driving bevel gear is fixedly connected to a rotating shaft, and the upper end of the rotating shaft passes through the valve body and is connected to a motor. A collecting chamber is provided at the lower end of the water inlet channel, and a sewage chamber is provided at the lower end of the valve body. A cleaning plate is movably provided in the sewage chamber, which is convenient for filtering the water entering the gate valve to remove impurities, thereby reducing the impact of impurities on the inside of the gate valve, reducing the wear and aging of the internal parts of the gate valve, ensuring the sealing, and thus extending the service life of the entire gate valve. At the same time, the filter plate can self-clean, ensuring the filtering effect of the filter plate.

[0008] In a further embodiment, the cleaning plate is threadedly connected to a screw rod, the screw rod is rotatably connected to the sewage discharge chamber, and one end of the screw rod passes through the sewage discharge chamber and is connected to a handle to facilitate the rotation of the screw rod.

[0009] In a further embodiment, a limiting rod is provided in the sewage discharge chamber, and the cleaning plate is slidably connected to the limiting rod to facilitate limiting the cleaning plate.

[0010] In a further embodiment, a sewage pipe is provided on one side of the sewage chamber and at the lower end of the collecting chamber respectively, and a cover is threadedly connected to the sewage pipe to facilitate opening the sewage pipe.

[0011] In a further embodiment, two limiting blocks are symmetrically provided on the upper end of the gate plate, and grooves matching with the limiting blocks are provided on the valve cover and the valve body to facilitate limiting the gate plate.

[0012] In a further embodiment, mounting components are respectively provided on both sides of the valve body, and each mounting component includes a rotation groove formed by an inward depression of the valve body, and a rotating ring is movably connected in the rotation groove to facilitate the rotation of the rotating ring.

[0013] In a further embodiment, an internal thread is provided in the rotating ring, and a plurality of anti-slip strips are evenly provided on the outer side of the rotating ring to facilitate the rotation of the rotating ring.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the utility model provides a sewage gate valve with the following beneficial effects:

[0016] 1. In the utility model, the valve body, water inlet channel, filter plate, fixing frame, rotating rod, first cleaning brush, second cleaning brush, driven bevel gear, driving bevel gear, rotating shaft, motor, collecting chamber, drain pipe and cover body cooperate to filter the water entering the gate valve to remove impurities, thereby reducing the impact of impurities on the inside of the gate valve, reducing the wear and aging of the internal parts of the gate valve, ensuring the sealing, and thus extending the service life of the entire gate valve. The filter plate can self-clean to prevent the filter plate from being blocked, and can automatically clean the water inlet channel of the gate valve, ensuring the filtration efficiency.

[0017] 2. In the utility model, the fluid dirt accumulated at the bottom of the valve body can be cleared through the cooperation of the valve body, the drain chamber, the cleaning plate, the screw, the turning handle, the limit rod, the drain pipe and the cover body. The drain pipe is arranged on one side of the drain chamber to facilitate the discharge of dirt, and can scrape and clean the drain chamber while the dirt is being discharged, thereby ensuring that the gate is closed in place and the gate valve works normally, extending the service life and reducing economic losses.

[0018] 3. In the utility model, the gate valve can be quickly connected to the external pipeline through the cooperation of the valve body, rotating groove, rotating ring, internal thread and anti-slip strip, which saves the time of workers using professional tools to tighten multiple bolts, thereby improving the work efficiency of gate valve installation and being very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a sewage gate valve in the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a sewage gate valve in the utility model from another perspective;

[0021] Figure 3 This is a cross-sectional view of the overall structure of a sewage gate valve in the utility model;

[0022] Figure 4 This is a cross-sectional view of the filter plate and its connecting parts in the utility model;

[0023] Figure 5 This is a cross-sectional view of the sewage chamber and its connecting components in the present utility model.

[0024] In the figure: 1. Valve body; 2. Valve seat; 3. Valve cover; 4. Bracket; 5. Valve stem; 6. Handwheel; 7. Gate; 8. Water inlet channel; 9. Water outlet channel; 10. Filter plate; 11. Fixing frame; 12. Rotating rod; 13. First cleaning brush; 14. Second cleaning brush; 15. Driven bevel gear; 16. Driving bevel gear; 17. Rotating shaft; 18. Motor; 19. Collecting chamber; 20. Drain chamber; 21. Cleaning plate; 22. Screw; 23. Turning handle; 24. Limiting rod; 25. Drain pipe; 26. Cover; 27. Limiting block; 28. Rotating groove; 29. ​​Rotating ring; 30. Internal thread; 31. Anti-slip strip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1:

[0027] See also Figure 1-5 A sewage gate valve includes a valve body 1, a valve seat 2 is provided in the valve body 1, a valve cover 3 is provided on the upper end of the valve body 1, a bracket 4 is provided on the valve cover 3, a valve stem 5 is connected to the internal thread 30 of the bracket 4, a hand wheel 6 is provided on the valve stem 5, the lower end of the valve stem 5 passes through the valve cover 3 and is rotatably connected to the gate plate 7 of the valve body 1, and a water inlet channel 8 and a water outlet channel 9 are provided at both ends of the valve body 1, a filter plate 10 and a fixing frame 11 are provided in the water inlet channel 8, a rotating rod 12 is rotatably provided on the fixing frame 11, and one end of the rotating rod 12 passes through The filter plate 10 is connected to a first cleaning brush 13, and a second cleaning brush 14 is provided at both ends of the first cleaning brush 13. A driven bevel gear 15 is provided at one end of the rotating rod 12, and the driven bevel gear 15 is meshed and connected with a driving bevel gear 16. The driving bevel gear 16 is fixedly connected to a rotating shaft 17. The upper end of the rotating shaft 17 passes through the valve body 1 and is connected to a motor 18. A collecting chamber 19 is provided at the lower end of the water inlet channel 8, and a sewage chamber 20 is provided at the lower end of the valve body 1. The sewage chamber 20 is movably provided with a cleaning plate 21.

[0028] In this embodiment, the cleaning plate 21 is threadedly connected to a screw 22, which is rotatably connected to the sewage chamber 20. One end of the screw 22 passes through the sewage chamber 20 and is connected to a handle 23. When the screw 22 rotates, the screw 22 drives the cleaning plate 21 to move, so that the cleaning plate 21 scrapes and cleans the sewage chamber 20.

[0029] In this embodiment, a limiting rod 24 is provided in the sewage discharge chamber 20 , and the cleaning plate 21 is slidably connected to the limiting rod 24 . When the cleaning plate 21 moves, the limiting rod 24 limits the cleaning plate 21 .

[0030] In this embodiment, a sewage pipe 25 is provided on one side of the sewage chamber 20 and at the lower end of the collecting chamber 19 respectively. A cover body 26 is threadedly connected to the sewage pipe 25. The cover body 26 is rotated to separate the cover body 26 from the sewage pipe 25, thereby discharging impurities in the sewage chamber 20 or dirt in the collecting chamber 19.

[0031] In this embodiment, two limit blocks 27 are symmetrically provided on the upper end of the gate plate 7, and grooves matching the limit blocks 27 are provided on the valve cover 3 and the valve body 1. When the gate plate 7 moves downward, the gate plate 7 drives the two limit blocks 27 to move downward along the grooves, thereby limiting the gate plate 7.

[0032] In this embodiment, mounting components are respectively provided on both sides of the valve body 1, and each mounting component includes a rotating groove 28 formed by the inward depression of the valve body 1, and a rotating ring 29 is movably connected in the rotating groove 28. The external water pipe to be connected is placed on one end of the rotating ring 29, and the rotating ring 29 is rotated. The rotating ring 29 will rotate along the rotating groove 28. An internal thread 30 is provided in the rotating ring 29, and the external water pipe can be threadedly connected to the rotating ring 29. Under the rotation of the rotating ring 29, the external water pipe is connected to the valve body 1. In order to increase the sealing performance, a sealing ring can be provided between the valve body 1 and the external water pipe.

[0033] In this embodiment, an internal thread 30 is provided in the rotating ring 29 , and a plurality of anti-slip strips 31 are evenly provided on the outer side of the rotating ring 29 . When the rotating ring 29 is rotated, the anti-slip strips 31 can prevent the rotating ring 29 from slipping.

[0034] Example 2:

[0035] In summary, during use, when the entire gate valve is installed, the two water pipes that need to be connected are placed at both ends of the valve body 1 respectively, and the rotating ring 29 is rotated. The rotating ring 29 will rotate along the rotating groove 28. An internal thread 30 is provided in the rotating ring 29, and the external water pipe can be threadedly connected to the rotating ring 29. Under the rotation of the rotating ring 29, the external water pipe is connected to the valve body 1. In order to increase the sealing performance, a sealing ring can be set between the valve body 1 and the external water pipe. During the installation and use of the gate valve, the fluid medium with impurities enters the water inlet channel 8, and then the particulate impurities are intercepted by the filter plate 10. At the same time, the motor 18 is started, and the motor 18 drives the rotating shaft 17 to rotate. The rotating shaft 17 drives the driving bevel gear 16 to rotate, and the driving bevel gear 16 drives the driven bevel gear 15, the rotating rod 12, the first cleaning brush 13 and the two second cleaning brushes 14 to rotate. The first cleaning brush 13 contacts the filter plate 10, and the second cleaning brush 14 contacts the inside of the valve body 1, thereby cleaning the filter plate 10 and the water inlet channel 8 inside the valve body 1. The impurities brushed off will enter the collection chamber 19, and the cover body 26 can be rotated to separate the cover body 26 from the sewage pipe 25, thereby discharging the impurities.

[0036] Example 3:

[0037] In summary, when in use, when the gate valve needs to be closed, the handwheel 6 is rotated, and the handwheel 6 drives the valve stem 5 to rotate. Since the valve stem 5 is threadedly connected to the bracket 4, the valve stem 5 rotates and drives the gate plate 7 and the two limit blocks 27 to move downward along the groove, so that the gate plate 7 and the valve seat 2 cooperate to close the gate valve. The two limit blocks 27 limit the downward movement position of the gate plate 7. When the gate valve is closed, a large part of the fluid dirt in the pipeline will enter the drain chamber 20 through the channel between the gate plate 7, the valve seat 2 and the valve body 1. The cover body 26 is rotated to open the drain pipe 25, and the fluid dirt will be discharged from the drain pipe 25. At the same time, the turning handle 23 is turned, and the turning handle 23 drives the screw 22 to rotate. The screw 22 drives the cleaning plate 21 to move, so that the cleaning plate 21 moves along the limit plate to scrape and clean the drain chamber 20, scraping off the dirt adhering to the drain chamber 20 and discharging it from the drain pipe 25 together with the fluid dirt. Since the pipes at both ends of the gate valve are usually connected to the ground, the gap between the gate valve and the ground is small, and the sewage pipe 25 of the sewage chamber 20 is set on one side of the sewage chamber 20, so as to facilitate sewage discharge.

[0038] In all the schemes mentioned above, the connection between the two parts can be selected according to actual conditions by welding, matching connection of bolts and nuts, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. For all the fixed connections mentioned above, welding is given priority. The above is only a preferred specific implementation method of the present utility model, but the protection scope of the present utility model is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the present utility model within the technical scope disclosed by the present utility model, which should be covered within the protection scope of the present utility model.

Claims

1. A sewage gate valve, comprising a valve body (1), a valve seat (2) provided in the valve body (1), a valve cover (3) provided at the upper end of the valve body (1), a bracket (4) provided on the valve cover (3), a valve stem (5) connected to the internal thread (30) of the bracket (4), a hand wheel (6) provided on the valve stem (5), a gate plate (7) rotatably connected to the lower end of the valve stem (5) passing through the valve cover (3) and the valve body (1), wherein: The valve body (1) is provided with a water inlet channel (8) and a water outlet channel (9) at both ends, a filter plate (10) and a fixing frame (11) are provided in the water inlet channel (8), a rotating rod (12) is rotatably provided on the fixing frame (11), one end of the rotating rod (12) passes through the filter plate (10) and is connected to a first cleaning brush (13), and second cleaning brushes (14) are provided at both ends of the first cleaning brush (13), one end of the rotating rod (12) is provided with a driven bevel gear (15), the driven bevel gear (15) is meshedly connected to a driving bevel gear (16), the driving bevel gear (16) is fixedly connected to a rotating shaft (17), the upper end of the rotating shaft (17) passes through the valve body (1) and is connected to a motor (18), a collecting chamber (19) is provided at the lower end of the water inlet channel (8), a sewage chamber (20) is provided at the lower end of the valve body (1), and a cleaning plate (21) is movably provided in the sewage chamber (20).

2. A sewage gate valve according to claim 1, characterized in that: The cleaning plate (21) is threadedly connected to a screw rod (22), the screw rod (22) is rotatably connected to the sewage discharge chamber (20), and one end of the screw rod (22) passes through the sewage discharge chamber (20) and is connected to a turning handle (23).

3. A sewage gate valve according to claim 2, characterized in that: A limiting rod (24) is provided in the sewage discharge chamber (20), and the cleaning plate (21) is slidably connected to the limiting rod (24).

4. A sewage gate valve according to claim 3, characterized in that: A sewage pipe (25) is provided on one side of the sewage chamber (20) and at the lower end of the collecting chamber (19), respectively. A cover (26) is threadedly connected to the sewage pipe (25).

5. The sewage gate valve according to claim 1, characterized in that: Two limit blocks (27) are symmetrically provided on the upper end of the gate plate (7), and grooves matching the limit blocks (27) are provided on the valve cover (3) and the valve body (1).

6. A sewage gate valve according to claim 1, characterized in that: Mounting assemblies are respectively provided on both sides of the valve body (1), and each mounting assembly comprises a rotation groove (28) formed by an inward depression of the valve body (1), and a rotating ring (29) is movably connected in the rotation groove (28).

7. A sewage gate valve according to claim 6, characterized in that: An internal thread (30) is provided inside the rotating ring (29), and a plurality of anti-slip strips (31) are evenly provided on the outside of the rotating ring (29).

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