Top-mounted ball valve

Abstract

The top-mounted ball valve comprises a valve body, a valve element arranged in the valve body, a water inlet channel and a water outlet channel, the water inlet channel and the water outlet channel are formed in the two sides of the valve body, and a first opening is formed in the upper portion of the water inlet channel; the sealing cover is used for opening or closing the first opening, the sealing cover is connected with the valve body through a bolt, a detachable filter screen assembly is arranged at the bottom of the sealing cover, the lower end of the filter screen assembly is detachably connected with the bottom wall of the water inlet channel, and the filter screen assembly comprises a supporting ring and an inner screen; the toothbrush further comprises a rotating ring rotationally connected with one side of the supporting ring, a plurality of connecting frames are arranged on the inner side of the rotating ring in the circumferential direction, bristles are arranged on the sides, facing the supporting ring, of the connecting frames, shifting rods are arranged at the upper ends of the connecting frames, the sealing cover is concaved upwards and inwards to form a containing part, and a second opening is formed in the top of the containing part. The upper end of the shifting rod penetrates through the second opening. And the connecting cover is used for opening or closing the opening II.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a top-entry ball valve. Background Art

[0002] As we all know, a ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid regulation and control, and is suitable for media containing fibers, tiny solid particles, etc. The eccentric semi-ball valve is a relatively new type of ball valve, widely used in petroleum, chemical industry, urban water supply and drainage and other working conditions that require strict shut-off.

[0003] In the prior art, top-entry ball valves are prone to wear and tear when water is transported in pipelines and when the water flows through the ball valve, impurities may accumulate in the water and adhere to the interior of the ball valve and the valve core. This can affect the sealing performance of the ball valve and hinder its long-term use.

[0004] As a prior art, Chinese patent CN221683748U proposes a top-mounted eccentric semi-ball valve, which filters impurities and dirt in the water flow through a filter screen to prevent impurities and dirt from entering the valve body and attaching to the valve core of the ball valve. When the filter screen is full of impurities and dirt, the valve cover is opened to replace the filter screen. However, in this technical solution, the dirt on the filter screen accumulates relatively quickly, and the sealing cover needs to be opened frequently to replace the filter screen, which is more troublesome. There is no structure for cleaning the filter screen. Moreover, when replacing the filter screen, the dirt will fall into the valve body and is easily brought into contact with the valve core under the influence of water flow, thereby causing wear of the valve core. There is still room for improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a top-entry ball valve to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a top-loading ball valve comprises a valve body, a valve core arranged in the valve body, and a water inlet channel and a water outlet channel opened on both sides of the valve body, wherein an opening one is provided above the water inlet channel; further comprising a sealing cover for opening or closing the opening one, the sealing cover is connected to the valve body by bolts, a detachable filter assembly is provided at the bottom of the sealing cover, the outer wall of the filter assembly is tightly attached to the inner wall of the water inlet channel, the lower end of the filter assembly is detachably connected to the bottom wall of the water inlet channel, the filter assembly comprises a support ring and an inner net; further comprising a rotating ring rotatably connected to one side of the support ring, a plurality of connecting frames are provided on the inner side of the rotating ring along the circumferential direction, the connecting frame is provided with bristles on the side facing the support ring, a shift rod is provided at the upper end of the connecting frame, the sealing cover is concave upward to form a accommodating portion, the top of the accommodating portion is provided with an opening two, and the upper end of the shift rod is arranged through the opening two; further comprising a connecting cover for opening or closing the opening two.

[0007] By adopting the above technical solution, when the dirt on the filter screen needs to be cleared, the second opening is opened through the connecting cover to expose the lever, and then the lever is toggled back and forth, so that the rotating ring rotates back and forth on the support ring, thereby driving the bristles on the connecting frame to brush back and forth on the surface of the inner net, thereby brushing off the dirt, avoiding the operation of frequently opening the sealing cover to clean and replace the filter screen. After the brushing is completed, the connecting cover closes the second opening again. The operation is convenient and practical. When the filter screen assembly needs to be replaced, the sealing cover is removed from the valve body, the filter screen assembly and the sealing cover are removed, and a new filter screen assembly is reinstalled.

[0008] As a further optimization of the present invention, the water inlet channel is provided with a slag discharge port at the bottom of one side of the filter assembly, and the inner wall of the slag discharge port is provided with an internal thread; it also includes a connecting seat, which is provided with an external thread and is threadedly connected to the slag discharge port, and the connecting seat is provided with a slag discharge groove with an opening facing upward.

[0009] With the above technical solution, after the dirt on the inner net is brushed off, it falls into the slag discharge groove of the connecting seat through the slag discharge port and slowly accumulates. When it accumulates to a certain amount, the connecting seat is disassembled and the dirt and impurities are dumped out.

[0010] As a further optimization of the present invention, a lower card slot is provided at the bottom of the water inlet channel, an upper card slot is provided at the bottom of the sealing cover, and the upper and lower ends of the filter assembly are respectively connected and fixed by upper and lower card slots.

[0011] As a further optimization of the present invention, an annular sliding groove is provided on the surface of the support ring, and the rotating ring is provided with a sliding block which is slidably connected to the sliding groove.

[0012] As a further optimization of the present invention, the outer wall of the accommodating portion is provided with an external thread, and the connecting cover is provided with a thread groove and is threadedly connected to the accommodating portion.

[0013] As a further optimization of the present invention, the cross-section of the slag discharge trough is rectangular, and a check plate arranged downwardly is provided in the slag discharge trough. The upper end of the check plate is rotatably connected to the side wall of one side of the slag discharge trough, and the lower end is abutted against the side wall of the other side of the slag discharge trough. A spring arranged upwardly is fixed to the side wall of the slag discharge trough, and the upper end of the spring is connected to the bottom of the check plate.

[0014] With the above technical solution, when dirt enters the slag discharge trough and falls on the check plate, it slides downward along the check plate. The check plate is pressed downward and deflected downward, thereby separating from the side wall of the slag discharge trough to create a gap. At the same time, the spring is squeezed, and the dirt enters the gap and accumulates at the bottom of the slag discharge trough. The spring restores its elasticity, and the lower end of the check plate abuts against the side wall of the slag discharge trough again, thereby preventing the dirt from flowing back.

[0015] The beneficial effects of the present invention are as follows: when the dirt on the filter screen needs to be cleaned, the second opening is opened through the connecting cover to expose the lever, and then the lever is toggled back and forth, so that the rotating ring rotates back and forth on the supporting ring, thereby driving the bristles on the connecting frame to brush back and forth on the surface of the inner net, thereby brushing off the dirt, avoiding the operation of frequently opening the sealing cover to clean and replace the filter screen. After brushing is completed, the connecting cover closes the second opening again, which is convenient to operate and practical. When the filter screen assembly needs to be replaced, the sealing cover is removed from the valve body, the filter screen assembly and the sealing cover are removed, and a new filter screen assembly is reinstalled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 for Figure 1 An enlarged schematic diagram in FIG.

[0018] Figure 3 This is a schematic diagram of the connection structure between the filter assembly and the connecting ring in the present invention;

[0019] Figure 4 for Figure 3 Another perspective structural diagram;

[0020] Figure 5 It is a structural schematic diagram of the filter assembly in the present utility model.

[0021] The meaning of the numbers in the figure are: 1. Valve body; 11. Water inlet channel; 12. Sealing cover; 131. Support ring; 1311. Slide groove; 132. Inner net; 14. Slag discharge port; 21. Opening 1; 22. Opening 2; 3. Connecting ring; 31. Push rod; 32. Slider; 4. Connecting frame; 5. Brush; 6. Connecting cover; 7. Connecting seat; 71. Slag discharge trough; 8. Check plate; 9. Spring. DETAILED DESCRIPTION

[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0023] See attached Figure 1-5 , the embodiment disclosed by the utility model is further provided with: a top-loading ball valve, comprising a valve body 1, a valve core arranged in the valve body 1, and a water inlet channel 11 and a water outlet channel opened on both sides of the valve body 1, an opening 21 being provided above the water inlet channel 11; further comprising a sealing cover 12 for opening or closing the opening 21, the sealing cover 12 being connected to the valve body 1 by bolts, a detachable filter screen assembly being provided at the bottom of the sealing cover 12, the outer wall of the filter screen assembly being in close contact with the inner wall of the water inlet channel 11, the lower end of the filter screen assembly being detachably connected to the bottom wall of the water inlet channel 11, specifically, a lower card groove being provided at the bottom of the water inlet channel 11, an upper card groove being provided at the bottom of the sealing cover 12, the upper and lower ends of the filter screen assembly being respectively connected and fixed by snap-fitting the upper and lower card grooves;

[0024] The filter assembly includes a support ring 131 and an inner net 132; it also includes a rotating ring rotatably connected to one side of the support ring 131, specifically, the surface of the support ring 131 is provided with an annular slide groove 1311, the rotating ring is provided with a slider 32 and is slidably connected to the slide groove 1311, a plurality of connecting frames 4 are provided on the inner side of the rotating ring along the circumferential direction, the connecting frame 4 is provided with bristles 5 on the side facing the support ring 131, the upper end of the connecting frame 4 is provided with a lever 31, the sealing cover 12 is concave upward to form a receiving portion, the top of the receiving portion is provided with an opening 22, and the upper end of the lever 31 is provided through the opening 22; it also includes a connecting cover 6 for opening or closing the opening 22, specifically, the outer wall of the receiving portion is provided with an external thread, the connecting cover 6 is provided with a threaded groove and is threadedly connected to the receiving portion;

[0025] The water inlet channel 11 is provided with a slag discharge port 14 at the bottom of one side of the filter assembly, and the inner wall of the slag discharge port 14 is provided with an internal thread; it also includes a connecting seat 7, the connecting seat 7 is provided with an external thread and is threadedly connected to the slag discharge port 14, and the connecting seat 7 is provided with a slag discharge groove 71 with an upward opening. Furthermore, the cross-section of the slag discharge groove 71 is rectangular, and a check plate 8 is provided in the slag discharge groove 71, which is tilted downward. The upper end of the check plate 8 is rotatably connected to the side wall of one side of the slag discharge groove 71, and the lower end is in contact with the side wall of the other side of the slag discharge groove 71. The side wall of the slag discharge groove 71 is fixed with a spring 9 tilted upward, and the upper end of the spring 9 is connected to the bottom of the check plate 8.

[0026] The principle of the utility model is as follows: when the dirt on the filter screen needs to be cleaned, the second opening 22 is opened through the connecting cover 6 to expose the lever 31, and then the lever 31 is toggled back and forth, so that the rotating ring rotates back and forth on the supporting ring 131, thereby driving the bristles 5 on the connecting frame 4 to brush back and forth on the surface of the inner net 132, thereby brushing off the dirt, avoiding the operation of frequently opening the sealing cover 12 to clean and replace the filter screen. After brushing is completed, the connecting cover 6 closes the second opening 22 again, which is convenient to operate and practical. When the filter screen assembly needs to be replaced, the sealing cover 12 is removed from the valve body 1, the filter screen assembly and the sealing cover 12 are removed, and a new filter screen assembly is reinstalled;

[0027] When the dirt on the inner net 132 is brushed off, the dirt falls on the top of the check plate 8 and slides downward along the check plate 8. The check plate 8 is pressed downward and deflected downward, thereby separating from the side wall of the slag discharge groove 71 to create a gap. At the same time, the spring 9 is squeezed, and the dirt enters the bottom of the slag discharge groove 71 from the gap and accumulates. The spring 9 restores its elasticity, and the lower end of the check plate 8 abuts against the side wall of the slag discharge groove 71 again, thereby preventing the dirt from flowing back; the dirt falls into the slag discharge groove 71 of the connecting seat 7 through the slag discharge port 14 and slowly accumulates. When it accumulates to a certain amount, the connecting seat 7 is disassembled and the dirt and impurities are dumped out.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. A top-mounted ball valve, comprising a valve body (1), a valve core arranged in the valve body (1), and a water inlet channel (11) and a water outlet channel opened on both sides of the valve body (1), wherein an opening (21) is provided above the water inlet channel (11); further comprising a sealing cover (12) for opening or closing the opening (21), wherein a detachable filter assembly is provided at the bottom of the sealing cover (12), and the lower end of the filter assembly is detachably connected to the bottom wall of the water inlet channel (11), characterized in that: The filter assembly comprises a support ring (131) and an inner net (132); further comprising a rotating ring rotatably connected to one side of the support ring (131); a plurality of connecting frames (4) are provided on the inner side of the rotating ring along the circumferential direction; a brush (5) is provided on the side of the connecting frame (4) facing the support ring (131); a shifting rod (31) is provided at the upper end of the connecting frame (4); the sealing cover (12) is concave upward to form a receiving portion; a second opening (22) is provided at the top of the receiving portion; the upper end of the shifting rod (31) is arranged to pass through the second opening (22); and further comprising a connecting cover (6) for opening or closing the second opening (22).

2. A top entry ball valve according to claim 1, characterized in that: The water inlet channel (11) is provided with a slag discharge port (14) at the bottom of one side of the filter assembly, and the inner wall of the slag discharge port (14) is provided with an internal thread; and further comprises a connecting seat (7), the connecting seat (7) is provided with an external thread and is threadedly connected to the slag discharge port (14), and the connecting seat (7) is provided with a slag discharge groove (71) with an upward opening.

3. The top entry ball valve according to claim 1, characterized in that: A lower card slot is provided at the bottom of the water inlet channel (11), an upper card slot is provided at the bottom of the sealing cover (12), and the upper and lower ends of the filter assembly are respectively connected and fixed by buckles with the upper card slot and the lower card slot.

4. A top entry ball valve according to claim 1, characterized in that: The surface of the support ring (131) is provided with an annular sliding groove (1311), and the rotating ring is provided with a sliding block (32) which is slidably connected to the sliding groove (1311).

5. The top entry ball valve according to claim 1, characterized in that: The outer wall of the accommodating portion is provided with an external thread, and the connecting cover (6) is provided with a thread groove and is threadedly connected to the accommodating portion.

6. The top entry ball valve according to claim 2, characterized in that: The cross section of the slag discharge trough (71) is rectangular. A check plate (8) arranged downwardly and tilted is provided in the slag discharge trough (71). The upper end of the check plate (8) is rotatably connected to a side wall of one side of the slag discharge trough (71), and the lower end is in contact with the other side wall of the slag discharge trough (71). A spring (9) arranged upwardly and tilted is fixed to the side wall of the slag discharge trough (71), and the upper end of the spring (9) is connected to the bottom of the check plate (8).

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