A sleeve valve

Abstract

This utility model relates to the technical field of compression fitting stopcock valves, and discloses a compression fitting stopcock valve including a valve body. An inlet is provided at the right end of the valve body, and a filter mechanism is installed inside the inlet. The filter mechanism includes a first fixed ring and a second fixed ring. A rotating shaft is rotatably connected to the inner wall of the first fixed ring via a bearing. A blade is fixedly connected to the outer wall of the rotating shaft, and a fixed sleeve is fixedly connected to the outer wall of the rotating shaft. This utility model, by setting a filter mechanism inside the inlet of the valve body, can filter the fluid entering the valve body, preventing impurities from adhering to the sealing surface and causing wear. The impact of the water flow on the blades drives the rotating shaft to rotate, causing the impact plate to collide and strike the striking frame during rotation, thereby vibrating the filter screen and shaking off the intercepted impurities, effectively preventing the filter screen from becoming clogged.

Description

Technical Field

[0001] This utility model relates to the field of compression fitting plug valve technology, and in particular to a compression fitting plug valve. Background Technology

[0002] Compression fitting plug valves are widely used in oilfield extraction, transportation and refining equipment, as well as in the petroleum, chemical, coal gas, natural gas, liquefied petroleum gas, HVAC, shipbuilding and general industries. A plug valve is a rotary valve with a closing element or plunger shape. It is a valve that is opened or closed by rotating 90 degrees to make the channel on the valve plug communicate or separate from the channel on the valve body.

[0003] Existing compression-type plug valves typically seal with a plug spool and a sleeve. The continuous opening and closing of the plug valve causes the plug spool to rotate. The plug can be cylindrical or conical. In cylindrical plugs, the passage is generally rectangular; while in conical plugs, the passage is trapezoidal. These shapes make the plug valve's structure lightweight. It is best suited for cutting off and connecting media, as well as for diverting flow; however, depending on the application and the erosion resistance of the sealing surface, it can sometimes be used for throttling.

[0004] However, existing ferrule-type plug valves rely on line sealing or conical sealing between the metal ferrule and the plug. Once particles get into the sealing surface, it will increase the wear between the metal ferrule and the plug, and leakage is likely to occur. Therefore, a ferrule-type plug valve is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a ferrule-type plug valve, which aims to solve the problem in the prior art where particles mixed into the sealing surface increase wear between the metal ferrule and the plug, affecting the service life of the ferrule-type plug valve.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a ferrule-type plug valve, comprising a valve body, wherein a water inlet is provided at the right end of the valve body, and a filter mechanism is provided inside the water inlet;

[0007] The filtration mechanism includes a first fixed ring and a second fixed ring. The inner wall of the first fixed ring is rotatably connected to a rotating shaft via a bearing. A blade is fixedly connected to the outer wall of the rotating shaft. A fixed sleeve is fixedly connected to the outer wall of the rotating shaft. A fixed frame is provided on the outer wall of the fixed sleeve. A collision plate is provided inside the fixed frame. An inner ring is provided inside the second fixed ring. A filter screen is fixedly connected to the inner wall of the inner ring.

[0008] As a further description of the above technical solution: the left wall of the inner ring is fixedly connected to a striking frame, and the outer wall of the first fixed ring is fixedly connected to the inner wall of the valve body.

[0009] As a further description of the above technical solution: the outer wall of the second fixing ring is fixedly connected to the inner wall of the valve body, and a baffle is fixedly connected to the inner wall of the first fixing ring.

[0010] As a further description of the above technical solution: the outer wall of the impact plate is hinged to the inner wall of the fixed frame by a pin, and a tension spring is provided between the impact plate and the fixed sleeve.

[0011] As a further description of the above technical solution: one end of the tension spring is fixedly connected to the end of the impact plate, and the other end of the tension spring is fixedly connected to the outer wall of the fixed sleeve.

[0012] As a further description of the above technical solution: the number of the fixing brackets is three, and the three fixing brackets are fixedly connected to the outer wall of the fixing sleeve at equal intervals with the rotating shaft as the axis.

[0013] As a further description of the above technical solution: the outer wall of the inner ring is provided with a connecting mechanism, the connecting mechanism including a rotating frame, the rotating frame being fixedly connected to the right wall of the inner ring.

[0014] As a further description of the above technical solution: the outer wall of the inner ring is provided with an external thread, and the inner wall of the second fixed ring is provided with an internal thread groove, and the outer wall of the inner ring is threadedly connected to the inner wall of the second fixed ring.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting a filter mechanism in the water inlet of the valve body, the fluid entering the valve body can be filtered, avoiding the problem of impurity particles adhering to the sealing surface and causing wear. Under the impact of the water flow on the blades, the rotating shaft will be driven to rotate, so that the impact plate will collide and knock the striking frame during the rotation, thereby causing the filter screen to vibrate and shake off the intercepted impurity particles, which can effectively prevent the filter screen from becoming blocked.

[0017] 2. In this utility model, the inner ring can be easily disassembled by setting a connecting mechanism. When the inner ring needs to be disassembled, the operator can rotate the rotating frame to drive the inner ring to rotate, so that the inner ring can be separated from the second fixed ring, making it easy to disassemble the inner ring to clean and replace the filter screen. Attached Figure Description

[0018] Figure 1 This is a front view of a ferrule-type plug valve proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the inlet cross-sectional structure of a ferrule-type plug valve proposed in this utility model.

[0020] Figure 3This is a schematic diagram of the filter mechanism structure of a ferrule-type plug valve proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the first fixing ring structure of a ferrule-type plug valve proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the fixing sleeve structure of a ferrule-type plug valve proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the second fixing ring of a ferrule-type plug valve proposed in this utility model.

[0024] Legend:

[0025] 1. Valve body; 2. Filtering mechanism; 201. First fixing ring; 202. Rotating shaft; 203. Blade; 204. Baffle; 205. Fixing sleeve; 206. Fixing frame; 207. Impact plate; 208. Tension spring; 209. Second fixing ring; 210. Filter screen; 211. Inner ring; 212. Striking frame; 3. Connecting mechanism; 301. Rotating frame; 302. Internal thread groove; 303. External thread; 4. Water inlet. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1 - Figure 3 One embodiment of this utility model is a ferrule-type plug valve, which includes a valve body 1, an inlet 4 at the right end of the valve body 1, and a filter mechanism 2 inside the inlet 4.

[0028] The filter mechanism 2 includes a first fixed ring 201 and a second fixed ring 209. The inner wall of the first fixed ring 201 is rotatably connected to a rotating shaft 202 via a bearing. The outer wall of the rotating shaft 202 is fixedly connected to a blade 203. The blade 203 allows the water flow to drive the rotating shaft 202 to rotate after impacting the blade 203. The outer wall of the rotating shaft 202 is fixedly connected to a fixed sleeve 205. The outer wall of the fixed sleeve 205 is provided with a fixed frame 206. The inside of the fixed frame 206 is provided with a baffle plate 207. The inside of the second fixed ring 209 is provided with an inner ring 211. The inner wall of the inner ring 211 is fixedly connected to a filter screen 210. The filter screen 210 can filter and intercept impurities and particles in the water flow entering the valve body 1.

[0029] A striking frame 212 is fixedly connected to the left wall of the inner ring 211. The outer wall of the first fixed ring 201 is fixedly connected to the inner wall of the valve body 1. The striking frame 212 can cause the filter screen 210 to vibrate under the impact of the impact plate 207. The outer wall of the second fixed ring 209 is fixedly connected to the inner wall of the valve body 1. A baffle 204 is fixedly connected to the inner wall of the first fixed ring 201. The baffle 204 can block half of the blades 203 on the outer wall of the rotating shaft 202, thereby facilitating the water flow to impact the other half of the blades 203.

[0030] Reference Figure 4 - Figure 5 The outer wall of the impact plate 207 is hinged to the inner wall of the fixing frame 206 by a pin. A tension spring 208 is provided between the impact plate 207 and the fixing sleeve 205. One end of the tension spring 208 is fixedly connected to the end of the impact plate 207, and the other end of the tension spring 208 is fixedly connected to the outer wall of the fixing sleeve 205. The tension spring 208 allows the impact plate 207 to be reset under the tension of the tension spring 208 after being struck by the striking frame 212. There are three fixing frames 206, which are fixedly connected to the outer wall of the fixing sleeve 205 at equal intervals with the rotating shaft 202 as the axis.

[0031] Reference Figure 6 The outer wall of the inner ring 211 is provided with a connecting mechanism 3. The connecting mechanism 3 includes a rotating frame 301, which is fixedly connected to the right wall of the inner ring 211. The outer wall of the inner ring 211 is provided with an external thread 303, and the inner wall of the second fixed ring 209 is provided with an internal thread groove 302. The outer wall of the inner ring 211 is threadedly connected to the inner wall of the second fixed ring 209. By threading the inner ring 211 and the second fixed ring 209 together, the inner ring 211 can be easily disassembled.

[0032] Working principle: By setting a filter mechanism 2 in the inlet 4 of the valve body 1, the fluid entering the valve body 1 can be filtered to prevent impurities from adhering to the sealing surface and causing wear. Under the impact of the water flow on the blades 203, the rotating shaft 202 will rotate, causing the impact plate 207 to collide and strike the striking frame 212 during the rotation. After striking the striking frame 212, the impact plate 207 will reset under the action of the tension spring 208, thereby causing the filter screen 210 to vibrate and shake off the intercepted impurities, which can effectively prevent the filter screen 210 from clogging. When it is necessary to disassemble the inner ring 211, the operator can rotate the rotating frame 301 to drive the inner ring 211 to rotate, thereby causing the inner ring 211 to detach from the second fixed ring 209, making it easy to disassemble the inner ring 211 and clean and replace the filter screen 210.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A compression fitting plug valve, comprising a valve body (1), characterized in that: The valve body (1) has a water inlet (4) at the right end, and a filter mechanism (2) is provided inside the water inlet (4); The filter mechanism (2) includes a first fixed ring (201) and a second fixed ring (209). The inner wall of the first fixed ring (201) is rotatably connected to a rotating shaft (202) via a bearing. The outer wall of the rotating shaft (202) is fixedly connected to a blade (203). The outer wall of the rotating shaft (202) is fixedly connected to a fixed sleeve (205). The outer wall of the fixed sleeve (205) is provided with a fixed frame (206). The inside of the fixed frame (206) is provided with a bumper (207). The inside of the second fixed ring (209) is provided with an inner ring (211). The inner wall of the inner ring (211) is fixedly connected to a filter screen (210).

2. A push-fit bibcock valve according to claim 1, characterized in that: The left wall of the inner ring (211) is fixedly connected to a striking frame (212), and the outer wall of the first fixing ring (201) is fixedly connected to the inner wall of the valve body (1).

3. A push-fit bibcock valve according to claim 1, characterized in that: The outer wall of the second fixing ring (209) is fixedly connected to the inner wall of the valve body (1), and the inner wall of the first fixing ring (201) is fixedly connected to a baffle (204).

4. A push-fit bibcock valve according to claim 1, characterized in that: The outer wall of the impact plate (207) is hinged to the inner wall of the fixing frame (206) by a pin, and a tension spring (208) is provided between the impact plate (207) and the fixing sleeve (205).

5. A push-fit bibcock valve according to claim 4, characterized in that: One end of the tension spring (208) is fixedly connected to the end of the impact plate (207), and the other end of the tension spring (208) is fixedly connected to the outer wall of the fixing sleeve (205).

6. A push-fit bibcock valve according to claim 1, characterized in that: The number of the fixing brackets (206) is three, and the three fixing brackets (206) are fixedly connected to the outer wall of the fixing sleeve (205) at equal intervals with the rotating shaft (202) as the axis.

7. A push-fit bibcock valve according to claim 1, characterized in that: The outer wall of the inner ring (211) is provided with a connecting mechanism (3), the connecting mechanism (3) includes a rotating frame (301), the rotating frame (301) is fixedly connected to the right wall of the inner ring (211).

8. A push-fit bibcock valve according to claim 1, characterized in that: The outer wall of the inner ring (211) is provided with an external thread (303), and the inner wall of the second fixed ring (209) is provided with an internal thread groove (302). The outer wall of the inner ring (211) is threadedly connected to the inner wall of the second fixed ring (209).

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