A filter ball valve

Abstract

The utility model discloses a filtering ball valve, comprising a valve body and a filter screen, wherein the two ends of the valve body are respectively provided with a water inlet and a water outlet, the filter screen is cylindrical, and both ends of the filter screen are open, a filter channel is provided on one side of the valve body, and the angle between the filter channel and the valve body is an acute angle, one end of the filter channel is communicated with the valve body, and the other end of the filter channel is connected with a first plug in a detachable manner, the first plug is hollow, and the hollow cavity of the first plug is communicated with the filter channel, a buffer gasket is provided in the first plug, and an isolation positioning piece for installing the filter screen is provided in the valve body, one port of the filter screen is respectively connected with the isolation positioning piece and the valve body, and the other port of the filter screen is connected with the inner wall of the first plug, and a port of the filter screen connected with the isolation positioning piece is communicated with the water inlet, and the side wall of the filter screen is communicated with the water outlet. The ball valve has a simple structure, good sealing performance, is not easy to be damaged, and has a long service life.

Description

Technical Field

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

[0002] At present, the filter copper ball valve is a valve that uses the sphere as a cut-off element. During the flow of the medium, impurities and particles in the medium can be filtered through the filter net to protect the normal operation of pipelines and equipment.

[0003] During operation, as the valve ball rotates and opens, the medium begins to flow, and the filter begins to block the sand or impurities in the water. However, when in use, a vortex will form at the plug. If there are hard foreign objects in the impurities, the plug will be worn through, causing water leakage. Once the plug is worn out, it must be replaced as a whole, which will cause repeated construction and great economic waste. In addition, since the plug is threadedly connected to the valve body, if the seal is not good, it will also cause water leakage. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a filtering ball valve, which has a simple structure, good sealing performance, is not easy to be damaged, and has a long service life.

[0005] The technical solution adopted to achieve the above-mentioned purpose of the utility model is:

[0006] A filtering ball valve comprises a valve body, wherein two ends of the valve body are respectively provided with a water inlet and a water outlet, and further comprises a filter screen, wherein the filter screen is cylindrical, and both ends of the filter screen are open, a filter channel is arranged on one side of the valve body, and the angle between the filter channel and the valve body is an acute angle, one end of the filter channel is communicated with the valve body, and the other end of the filter channel is connected with a first plug in a detachable manner, the first plug is hollow, and the hollow cavity of the first plug is communicated with the filter channel,

[0007] A buffer gasket is provided in the first plug, and an isolation positioning piece for installing a filter screen is provided in the valve body. One port of the filter screen is respectively connected with the isolation positioning piece and the valve body, and the other port of the filter screen is connected with the inner wall of the first plug. A port of the filter screen connected to the isolation positioning piece is connected to the water inlet, and the side wall of the filter screen is connected to the water outlet.

[0008] The filter channel is provided with an internal thread, the first plug is circular, the axial section of the first plug is U-shaped, the first plug is provided with an external thread, a shoulder for positioning the filter screen is provided in the first plug, and the first plug is threadedly connected to the filter channel.

[0009] A limiting ring for limiting the sealing ring is provided on the outer wall of the first plug, the limiting ring is coaxial with the first plug, a first annular groove for installing the sealing ring is provided on the outer wall of the first plug at the inner side of the limiting ring, a first sealing ring is sleeved on the first annular groove, the outer side of the first sealing ring is sealed and connected to the filter channel, and the limiting ring is in contact with the port of the filter channel facing away from the valve body.

[0010] The buffer gasket is cylindrical and has an interference fit with the first plug.

[0011] A monitoring interface for connecting a pressure gauge is provided on the other side of the valve body. The monitoring interface is inclined relative to the filter channel. The monitoring interface and the filter channel are respectively located on opposite sides of the valve body, and the monitoring interface and the filter channel are distributed in an "eight" shape. A second plug is sealed and connected to the monitoring interface.

[0012] The monitoring interface is provided with an internal thread, the second plug is a circular plug, the second plug is provided with an external thread, the axial cross-section of the second plug is T-shaped, a second annular groove is provided at the axial shoulder of the second plug, a second sealing ring is sleeved on the second annular groove, the second plug is threadedly connected to the monitoring interface, the outer side of the second sealing ring is sealed to the monitoring interface, and the axial shoulder of the second plug is in contact with the monitoring interface.

[0013] Compared with the prior art, the beneficial effects and advantages of the utility model are:

[0014] 1. When the ball valve is in use, when eddy currents are generated in the filter and there are hard impurities, the buffer gasket will buffer the force of the eddy currents so that it does not directly act on the first plug, thereby protecting the first plug and achieving the purpose of preventing the first plug from being easily damaged, avoiding the problem of repeated construction and increased costs caused by frequent replacement of ball valves.

[0015] 2. The ball valve sets the sealing ring on the annular groove of the first plug. The sealing ring is limited by the limit ring and is squeezed by the inner wall of the filter channel. This method forms a good sealing effect between the first plug and the filter channel.

[0016] 3. The ball valve has a reserved interface for installing a pressure gauge, making the installation of the pressure gauge easier. At the same time, the water pressure in the ball valve can be monitored by the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the filter ball valve.

[0018] Figure 2 This is the assembly drawing of the first plug and the filter.

[0019] Among them, 1-valve body, 2-water inlet, 3-water outlet, 4-valve ball, 5-valve stem, 6-filter screen, 7-first plug, 8-filter channel, 9-isolation positioning plate, 10-hole shoulder, 11-limiting ring, 12-first annular groove, 13-first sealing ring, 14-first sealing ring, 15-monitoring interface, 16-second plug, 17-second annular groove, 18-second sealing ring, 19-buffer gasket. Specific implementation method

[0021] The utility model is described in detail below in conjunction with the accompanying drawings.

[0022] The structure of the filter ball valve provided in this embodiment is as follows Figure 1 As shown, the valve body 1, valve ball 4, valve stem 5, filter 6, first plug 7 and second plug 16, the valve ball 4 is made of copper. The two ends of the valve body 1 are respectively a water inlet 2 and a water outlet 3, and the valve ball 4 and valve stem 5 are installed on the side of the valve body 1 close to the water inlet 2.

[0023] A circular filter channel 8 is provided on one side of the valve body 1. The filter channel 8 is located between the valve ball 4 and the water outlet 3. The filter channel 8 is tilted relative to the valve body 1, and the angle between the filter channel and the valve body is acute. One end of the filter channel 8 is connected to the valve body 1, and the other end of the filter channel 8 is open. The filter channel 8 is provided with an internal thread on the side facing away from the valve body 1.

[0024] The valve body 1 is provided with an isolation and positioning piece 9 for installing a filter screen near the valve ball 4 . The isolation and positioning piece 9 has an arc-shaped cross section on the axial cross section of the valve body, and the arc-shaped opening faces the valve ball 4 .

[0025] like Figure 2 As shown, the first plug 7 is circular, and the axial section of the first plug 7 is U-shaped. The first plug 7 is provided with an external thread, and the first plug 7 is threadedly connected to the filter channel 8. A hole shoulder 10 is provided inside the first plug 7, and the hole shoulder 10 is used to position the filter screen 6. A limiting ring 11 is provided on the outer wall of the first plug 7 to limit the first sealing ring 14, and the limiting ring 11 is coaxial with the first plug 7. A first annular groove 12 for installing the sealing ring is provided on the outer wall of the first plug 7 at the inner side of the limiting ring 11, and a first sealing ring 13 is sleeved on the first annular groove 12. The outer side of the first sealing ring 13 is sealed and connected to the filter channel 8, and the limiting ring 11 is in contact with the port of the filter channel 8 facing away from the valve body. Due to the installation method of the first sealing ring 13, the sealing effect of the first plug 7 is greatly improved.

[0026] The filter screen 6 is cylindrical, and both ends of the filter screen 6 are open. One end of the filter screen 6 is respectively connected with the isolation positioning piece 9 and the valve body 1 in abutment, and the other end of the filter screen 6 is connected with the hole shoulder 10 in abutment.

[0027] A buffer gasket 19 is provided inside the first plug 7. The buffer gasket 19 is cylindrical and has an interference fit with the first plug 7. When the valve ball is working, when a vortex is generated in the filter channel 8 and there are relatively hard impurities, the buffer gasket 19 will buffer the force of the vortex and prevent it from directly acting on the first plug 7, thereby protecting the first plug 7 and further protecting the entire ball valve. This is the simplest and most economical means.

[0028] A monitoring interface 15 for connecting a pressure gauge is provided on the other side of the valve body 1. The monitoring interface 15 is provided with an internal thread, and the monitoring interface 15 is tilted relative to the valve body 1. The monitoring interface 15 and the filter channel 8 are respectively located on opposite sides of the valve body 1, and the monitoring interface 15 and the filter channel 8 are distributed in an "eight" shape. The second plug 16 is a circular plug, and the axial section of the second plug 16 is T-shaped, and the second plug 16 is provided with an external thread. A second annular groove 17 is provided at the shoulder of the second plug 16, and a second sealing ring 18 is sleeved on the second annular groove 17. The second plug 16 is threadedly connected to the monitoring interface 15, and the outer side of the second 18 is connected to the monitoring seal 15, and the shoulder of the second plug 16 is in contact with the monitoring interface 15.

Claims

1. A filter ball valve, comprising a valve body, with a water inlet and a water outlet respectively provided at both ends of the valve body, characterized in that: The valve body also includes a filter screen, which is cylindrical and has openings at both ends. A filter channel is provided on one side of the valve body. The angle between the filter channel and the valve body is acute. One end of the filter channel is connected to the valve body. The other end of the filter channel is connected to a first plug in a detachable manner. The first plug is hollow, and the hollow cavity of the first plug is connected to the filter channel. A buffer gasket is provided in the first plug, and an isolation positioning piece for installing a filter screen is provided in the valve body. One port of the filter screen is respectively connected with the isolation positioning piece and the valve body, and the other port of the filter screen is connected with the inner wall of the first plug. A port of the filter screen connected to the isolation positioning piece is connected to the water inlet, and the side wall of the filter screen is connected to the water outlet.

2. The filter ball valve according to claim 1, characterized in that: The filter channel is provided with an internal thread, the first plug is circular, the axial section of the first plug is U-shaped, the first plug is provided with an external thread, a shoulder for positioning the filter screen is provided in the first plug, and the first plug is threadedly connected to the filter channel.

3. The filter ball valve according to claim 2, characterized in that: A limiting ring for limiting the sealing ring is provided on the outer wall of the first plug, the limiting ring is coaxial with the first plug, a first annular groove for installing the sealing ring is provided on the outer wall of the first plug at the inner side of the limiting ring, a first sealing ring is sleeved on the first annular groove, the outer side of the first sealing ring is sealed and connected to the filter channel, and the limiting ring is in contact with the port of the filter channel facing away from the valve body.

4. The filter ball valve according to claim 1, characterized in that: The buffer gasket is cylindrical and has an interference fit with the first plug.

5. The filter ball valve according to claim 1, characterized in that: A monitoring interface for connecting a pressure gauge is provided on the other side of the valve body. The monitoring interface is inclined relative to the filter channel. The monitoring interface and the filter channel are respectively located on opposite sides of the valve body, and the monitoring interface and the filter channel are distributed in an "eight" shape. A second plug is sealed and connected to the monitoring interface.

6. The filter ball valve according to claim 5, characterized in that: The monitoring interface is provided with an internal thread, the second plug is a circular plug, the second plug is provided with an external thread, the axial cross-section of the second plug is T-shaped, a second annular groove is provided at the axial shoulder of the second plug, a second sealing ring is sleeved on the second annular groove, the second plug is threadedly connected to the monitoring interface, the outer side of the second sealing ring is sealed to the monitoring interface, and the axial shoulder of the second plug is in contact with the monitoring interface.

Images