Filtering ball valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a filtering ball valve which is characterized by comprising a valve body, a flow channel for fluid media to circulate is arranged in the valve body, the flow channel comprises a water inlet channel and a water outlet channel, and a radial channel is arranged below the valve body; the valve element is arranged in the flow channel, an opening is formed in the bottom of the valve element, and the valve element is arranged above the radial channel; the filtering mechanism is arranged in the valve element and the radial channel, and the filtering mechanism comprises a filtering frame, a first filtering net and a second filtering net; the filter frame is cylindrical, the first filter screen covers the inner side of the filter frame and is fixed to the filter frame, the second filter screen is V-shaped and is arranged in the first filter screen, the filter frame comprises a supporting frame, the supporting frame is arranged on the side, facing the water inlet channel, of the filter frame, and water inlets are formed in the supporting frame and the first filter screen. The filter has the beneficial effects that the filter has a good filtering effect, and is not easy to block while the filtering area is large.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and particularly relates to a filter ball valve. Background Art

[0002] A filter valve is a valve that can filter the water flow passing through itself. The traditional filter valve adopts a ball valve structure, and realizes the connection between the water inlet joint and the water outlet joint by rotating the valve ball inside the valve body, so as to realize the opening and closing of the filter valve. The filtering structure of the traditional filter valve is generally arranged on one side of the valve ball to filter the medium flowing through the valve.

[0003] However, due to the limited inner diameter of the flow channel, the filtering area of the filtering mechanism is generally small, and impurities are easily blocked at the filtering mechanism after a long time of filtering, which affects the service life of the filtering mechanism. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a filter ball valve aiming at the above existing technical problems, which has a good filtering effect, is not easy to be blocked while having a large filtering area.

[0005] The purpose of the utility model is to provide a filter ball valve, including:

[0006] A valve body, in which a flow channel for fluid medium to flow through is provided. The flow channel includes a water inlet channel and a water outlet channel, and a radial channel is arranged below the valve body;

[0007] A valve core, which is arranged in the flow channel. An opening is provided at the bottom of the valve core, and the valve core is arranged above the radial channel;

[0008] A filtering mechanism, which is arranged in the valve core and the radial channel. The filtering mechanism includes a filter frame, a first filter screen and a second filter screen;

[0009] Among them, the filter frame is cylindrical, the first filter screen covers the inner side of the filter frame and is fixed to the filter frame. The second filter screen is V-shaped and is arranged inside the first filter screen. The filter frame includes a support frame, which is arranged on the side of the filter frame facing the water inlet channel, and a water inlet is arranged on the support frame and the first filter screen.

[0010] The utility model is further arranged as: The filtering mechanism further includes:

[0011] A fixing frame, which is arranged on the periphery of the second filter screen and is used to fix the second filter screen.

[0012] The utility model is further arranged as: The filter frame includes:

[0013] A top cover is provided on the top of the filter box. The top cover is fixed to the support frame. At least two fixing grooves are provided on the top of the valve core. At least two mating fixing protrusions are provided above the top cover. After the filtering mechanism is inserted into the valve core, the fixing protrusions are snapped into the fixing grooves.

[0014] The present utility model is further configured as: The filter box further includes:

[0015] A bottom cover is provided at the bottom of the filter box. The bottom cover is fixed to the support frame. The outer peripheral wall of the bottom cover contacts the inner wall of the valve body. A disassembly hole is provided at one end of the bottom cover close to the water outlet channel.

[0016] The present utility model is further configured as: Clamping strips are provided on both sides of the fixing frame. Clamping protrusions are provided at both ends of the clamping strips. Clamping grooves are provided on the top cover and the bottom cover that are mating with the clamping protrusions.

[0017] The present utility model is further configured as: A sealing strip is provided between the clamping strip and the first filter screen.

[0018] The present utility model is further configured as: Further included is a lower valve cover which is provided below the bottom cover and is threadedly fixed to the valve body.

[0019] The present utility model is further configured as: Further included are:

[0020] A valve stem extends into the interior of the valve body;

[0021] A sealing part is provided between the valve body and the valve stem. At least three V-shaped sealing rings are provided in the sealing part. One side of the V-shaped sealing ring abuts against the valve stem, and the other side abuts against the inner wall of the valve body.

[0022] The present utility model is further configured as: The sealing part further includes:

[0023] A tightening ring is provided at the bottom of the sealing part. The top of the tightening ring abuts against the opening of the V-shaped sealing ring.

[0024] The present utility model is further configured as: The valve stem further includes:

[0025] A handle is fixed to the valve stem for manipulating the rotation of the valve stem.

[0026] By adopting the above technical solutions, the present utility model has at least the following beneficial effects:

[0027] 1. Through the design of inserting the valve core and the radial channel through the filtering mechanism, while saving space, the medium flowing through the filtering mechanism can be filtered, and the filtered impurities will fall by gravity above the bottom cover after being filtered, so that the filter screen in the flow channel is not easily blocked, improving the working efficiency of the filtering mechanism and increasing the service life of the filtering mechanism.

[0028] 2. The first filter screen is cylindrical, and the second filter screen is V-shaped, both having a large filtering area. The design of the double-layer filter screen can filter the medium flowing through the valve twice, enhancing the filtering effect while having a large filtering area.

[0029] 3. The fixing frame supports and fixes the second filter screen, stabilizing the shape of the second filter screen, so that the second filter screen is not easily deformed under strong water flow impact, affecting the filtering area of the second filter screen, thus maintaining the filtering effect of the filtering mechanism.

[0030] 4. Through the cooperation of the disassembly hole, the fixing frame, the clamping groove and the clamping protrusion, the fixing frame and the second filter screen can be directly removed and replaced through the disassembly hole after the second filter screen is damaged. While being convenient for maintenance, it reduces the maintenance cost of the filter ball valve and increases the service life of the filter ball valve. Description of the Drawings

[0031] Figure 1 is a sectional view of the filter ball valve of the present utility model;

[0032] Figure 2 is a schematic structural diagram of the filter frame and the first filter screen of the filter ball valve of the present utility model;

[0033] Figure 3 is a schematic structural diagram of the filter frame and the second filter screen of the filter ball valve of the present utility model;

[0034] Figure 4 is a schematic structural diagram of the fixing frame of the filter ball valve of the present utility model;

[0035] Figure 5 is an enlarged view of part A of the filter ball valve of the present utility model;

[0036] The reference numerals in the drawings are: 1 - valve body, 2 - valve core, 3 - filtering mechanism, 4 - valve stem, 5 - sealing part, 6 - lower valve cover, 11 - water inlet channel, 12 - water outlet channel, 13 - radial channel, 21 - fixing groove, 31 - filter frame, 32 - first filter screen, 33 - second filter screen, 34 - fixing frame, 41 - handle, 51 - V-shaped sealing ring, 52 - pressing ring, 311 - top cover, 312 - bottom cover, 313 - support frame, 341 - clamping strip, 342 - clamping protrusion, 343 - sealing strip, 3111 - fixing protrusion, 3121 - disassembly hole, 3122 - clamping groove, 3131 - water inlet. Detailed implementation mode

[0037] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the terms used herein are only for describing specific implementation modes and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further described in subsequent drawings.

[0039] The following further describes the present utility model with specific embodiments in conjunction with the accompanying drawings. See Figures 1-5 :

[0040] Embodiment 1:

[0041] This embodiment provides a filtering ball valve, including:

[0042] A valve body 1, in which a flow channel for fluid medium to flow through is provided. The flow channel includes a water inlet channel 11 and a water outlet channel 12, and a radial channel 13 is provided below the valve body 1;

[0043] A valve core 2, which is arranged in the flow channel. An opening is provided at the bottom of the valve core 2, and the valve core 2 is arranged above the radial channel 13;

[0044] A filtering mechanism 3, which is arranged in the valve core 2 and the radial channel 13. The filtering mechanism 3 includes a filtering frame 31, a first filter screen 32, and a second filter screen 33;

[0045] Among them, the filter box 31 is cylindrical, the first filter screen 32 covers the inner side of the filter box 31, the first filter screen 32 is fixed to the filter box 31, the second filter screen 33 is V-shaped, the second filter screen 33 is arranged inside the first filter screen 32, the filter box 31 includes a support frame 313, the support frame 313 is arranged on the side of the filter box 31 facing the water inlet channel 11, and a water inlet 3131 is arranged on the support frame 313 and the first filter screen 32.

[0046] The valve body 1 is provided with a water inlet channel 11 and a water outlet channel 12. The water outlet channel 12 is communicated with the water inlet channel 11. The fluid medium in the pipeline enters from the water inlet channel 11 and flows out from the water outlet channel 12.

[0047] The filter box 31 is cylindrical and is clamped in the valve core 2 and the radial channel 13, which can save space. The first filter screen 32 is cylindrical. The first filter screen 32 covers the inner side of the filter box 31. The second filter screen 33 is arranged inside the first filter screen 32. Filtration is carried out jointly by two layers of filter screens. The opening direction of the V-shaped filter screen faces the water inlet 3131. Both the cylindrical first filter screen 32 and the V-shaped second filter screen 33 have a large surface area. Therefore, while increasing the filtration area of the filtration mechanism 3, the filtration effect of the filtration mechanism 3 is enhanced.

[0048] The liquid medium flows into the water inlet 3131 from the water inlet channel 11. After being filtered by the filter screen, the impurities fall from the filter screen into the bottom of the filter box 31. Since the filter screen in the flow channel is the main filtering part, ensuring that the filter screen in the flow channel is not blocked can keep the filtration mechanism 3 in good filtration effect.

[0049] At the same time, there is a gap between the first filter screen 32 in the radial channel 13 and the inner wall of the valve body 1, and there is a gap between the second filter screen 33 and the first filter screen 32. Therefore, the filter screen in the radial channel 13 also has a good filtration effect. Such a design increases the filtration area of the filtration mechanism 3, thereby increasing the filtration efficiency of the filtration mechanism 3.

[0050] The height of the filtration mechanism 3 in the radial channel 13 is greater than the height of the filtration mechanism 3 in the flow channel part. When the ball valve is opened, the medium enters the filtration mechanism 3 for filtration. When the medium flow rate is relatively fast, the impurities deposited at the bottom of the filter box 31 will be affected by the water flow above and generate a certain pressure difference in the filter box 31, causing the impurities at the bottom of the filter box 31 to be subjected to an upward force and be carried to the upper part of the filter box 31, resulting in the blockage of the filter screen in the flow channel part. When the height of the filtration mechanism 3 in the radial channel 13 is greater than the height of the filtration mechanism 3 in the flow channel, the influence of the water pressure on the impurities at the bottom of the filter box 31 can be reduced, making it difficult for the impurities to be carried to the upper part of the filter box 31, preventing the filter screen in the flow channel from being blocked, and increasing the service life of the filter screen.

[0051] The first filter screen 32 and the second filter screen 33 can be made of other materials such as stainless steel and brass. The present utility model preferably uses a stainless steel filter screen. The stainless steel filter screen has the advantages of good material stability, good extensibility, wear resistance, etc., and can adapt to the working environment of the ball valve and meet the filtering requirements.

[0052] Embodiment 2:

[0053] This embodiment provides a filtering ball valve. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0054] The filtering mechanism 3 further includes:

[0055] A fixing frame 34 is arranged on the periphery of the second filter screen 33. The fixing frame 34 is used to fix the second filter screen 33.

[0056] The fixing frame 34 supports and fixes the second filter screen 33. The fixing frame 34 can stabilize the shape of the second filter screen 33, so that the second filter screen 33 is not easily deformed under strong water flow impact and does not affect the filtering area of the second filter screen 33, thereby maintaining the filtering effect of the filtering mechanism 3.

[0057] The fixing frame 34 is integrally formed with the second filter screen 33. The fixing frame 34 is V-shaped. The material of the fixing frame 34 can be stainless steel, plastic, etc. The present utility model preferably uses plastic. Plastic has good wear resistance while having a certain rigidity and lower cost.

[0058] The filter frame 31 includes:

[0059] A top cover 311 is arranged on the top of the filter frame 31. The top cover 311 is fixed to the support frame 313. At least two fixing grooves 21 are provided on the top of the valve core 2. At least two fixing protrusions 3111 are provided above the top cover 311. After the filtering mechanism 3 is inserted into the valve core 2, the fixing protrusions 3111 are clamped in the fixing grooves 21.

[0060] The filter frame 31 is inserted into the valve core 2. The fixing protrusions 3111 on the top cover 311 are clamped with the fixing grooves 21 on the top of the valve core 2, so that the filtering mechanism 3 is fixed to the valve core 2. And when the valve core 2 rotates, the filtering mechanism 3 also rotates together, so that the water inlet 3131 of the filter frame 31 is always aligned with the open end of the valve core 2, increasing the stability of the filtering mechanism 3.

[0061] The filter frame 31 further includes:

[0062] A bottom cover 312 is arranged at the bottom of the filter frame 31. The bottom cover 312 is fixed to the support frame 313. The outer peripheral wall of the bottom cover 312 contacts the inner wall of the valve body 1. A disassembly hole 3121 is provided at one end of the bottom cover 312 close to the water outlet 12.

[0063] The bottom cover 312 is cylindrical, and the outer diameter of the bottom cover 312 is slightly smaller than the inner diameter of the radial channel 13. The outer peripheral wall of the bottom cover 312 abuts against the inner wall of the valve body 1, so that all the filtered impurities can fall above the bottom cover 312, which is convenient for cleaning the impurities above the bottom cover 312 when replacing the filter frame 31.

[0064] The disassembly hole 3121 cooperates with the fixing frame 34, and the fixing frame 34 can be inserted into the filter frame 31 through the disassembly hole 3121 or removed from the filter frame 31, which is convenient for the user to maintain the filtering mechanism 3.

[0065] The support frame 313, the top cover 311 and the bottom cover 312 are integrally designed. The support frame 313 is used to fix the top cover 311 and the bottom cover 312. The support frame 313 is strip-shaped. While the support frame 313 plays a certain supporting role for the filter frame 31, it can save a certain amount of space.

[0066] The material of the filter frame 31 can be stainless steel, carbon steel, etc. The present utility model preferably uses plastic. Plastic has certain rigidity, light weight, strong chemical stability, good wear resistance, low cost and long service life.

[0067] The two sides of the fixing frame 34 are provided with clamping strips 341, and the two ends of the clamping strips 341 are provided with clamping protrusions 342. The top cover 311 and the bottom cover 312 are provided with clamping grooves 3122 that cooperate with the clamping protrusions 342.

[0068] By the cooperation of the clamping protrusions 342 and the clamping grooves 3122, the fixing frame 34 can be clamped in the filter frame 31 to ensure the stability of the second filter screen 33.

[0069] A sealing strip 343 is arranged between the clamping strip 341 and the first filter screen 32.

[0070] The sealing strip 343 is used to seal the gap between the fixing frame 34 and the first filter screen 32, preventing the liquid medium from passing through the gap between the fixing frame 34 and the first filter screen 32 and affecting the filtering effect of the filtering mechanism 3.

[0071] The material of the sealing strip 343 can be rubber, silica gel, etc. The present utility model preferably uses polyvinyl chloride, which has good sealing performance while having low cost and can reduce the maintenance cost of the filtering mechanism 3.

[0072] It further includes: a lower valve cover 6, which is arranged below the bottom cover 312, and the lower valve cover 6 is fixedly threaded with the valve body 1. <C

[0073] The lower valve cover 6 is arranged at the bottom of the bottom cover 312. Threaded holes are provided on the outer wall of the lower valve cover 6 and the valve body 1. Removable bolts are provided in the threaded holes to fix the lower valve cover 6 and the valve body 1.

[0074] When the filter mechanism 3 needs to be replaced, it is only necessary to close the valve, remove the bolts and the lower valve cover 6, and then remove the filter mechanism 3. Then, remove the fixing frame 34, replace the fixing frame 34 and the second filter screen 33, and clean the impurities above the bottom cover 312. After cleaning, install the fixing frame 34. This makes replacement convenient and reduces maintenance costs.

[0075] A sealing ring is provided between the lower valve cover 6 and the valve body 1 to prevent the medium from flowing out of the lower valve cover 6 and affecting the use of the ball valve.

[0076] Example 3:

[0077] This embodiment provides a filter ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0078] Also includes:

[0079] The sealing part 5 is provided between the valve body 1 and the valve stem 4 . At least three V-shaped sealing rings 51 are provided in the sealing part 5 . One side of the V-shaped sealing ring 51 abuts against the valve stem 4 , and the other side abuts against the inner wall of the valve body 1 .

[0080] Three superimposed V-shaped sealing rings 51 are arranged in the sealing portion 5. One side of the V-shaped sealing ring 51 abuts against the valve stem 4 and deforms, and the other side abuts against the inner wall of the valve body 1 and deforms, thereby enhancing the sealing performance between the valve stems 4 and preventing the fluid medium from leaking from above the valve through the valve stem 4.

[0081] The sealing portion 5 further comprises:

[0082] The tightening ring 52 is provided at the bottom of the sealing portion 5 , and the top of the tightening ring 52 abuts against the opening of the V-shaped sealing ring 51 .

[0083] The tightening ring 52 generates an upward resistance force on the V-shaped sealing ring 51 , which can increase the degree of deformation on both sides of the V-shaped sealing ring 51 and further enhance the sealing performance of the V-shaped sealing ring 51 .

[0084] The valve stem 4 also includes:

[0085] The handle 41 is fixed to the valve stem 4 and is used to control the rotation of the valve stem 4 .

[0086] The user can rotate the valve stem 4 through the handle 41 to control the opening and closing of the valve core 2. Since the pressure generated inside the valve is relatively high when the valve is working, the handle 41 can increase the torque of the rotation, allowing the user to operate the valve more easily.

[0087] The above embodiments are only preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A filtering ball valve, characterized in that, Comprising: A valve body (1), a flow channel for fluid medium to flow through is provided in the valve body (1), the flow channel includes a water inlet channel (11) and a water outlet channel (12), and a radial channel (13) is provided below the valve body (1); A valve core (2), the valve core (2) is arranged in the flow channel, an opening is provided at the bottom of the valve core (2), and the valve core (2) is arranged above the radial channel (13); A filtering mechanism (3), the filtering mechanism (3) is arranged in the valve core (2) and the radial channel (13), and the filtering mechanism (3) includes a filtering frame (31), a first filter screen (32) and a second filter screen (33); Wherein, the filtering frame (31) is cylindrical, the first filter screen (32) covers the inner side of the filtering frame (31), the first filter screen (32) is fixed to the filtering frame (31), the second filter screen (33) is V-shaped, the second filter screen (33) is arranged inside the first filter screen (32), the filtering frame (31) includes a support frame (313), the support frame (313) is arranged on one side of the filtering frame (31) facing the water inlet channel (11), and a water inlet (3131) is provided on the support frame (313) and the first filter screen (32).

2. The filtering ball valve according to claim 1, characterized in that, The filtering mechanism (3) further includes: A fixing frame (34), the fixing frame (34) is arranged on the periphery of the second filter screen (33), and the fixing frame (34) is used to fix the second filter screen (33).

3. The filtering ball valve according to claim 2, characterized in that, The filtering frame (31) includes: A top cover (311), the top cover (311) is arranged on the top of the filtering frame (31), the top cover (311) is fixed to the support frame (313), at least two fixing grooves (21) are provided at the top of the valve core (2), at least two fixing protrusions (3111) are provided above the top cover (311), and after the filtering mechanism (3) is inserted into the valve core (2), the fixing protrusions (3111) are clamped in the fixing grooves (21).

4. A filtering ball valve according to claim 3, characterized in that, The filtering frame (31) further includes: A bottom cover (312), the bottom cover (312) is arranged at the bottom of the filtering frame (31), the bottom cover (312) is fixed to the support frame (313), the outer peripheral wall of the bottom cover (312) contacts the inner wall of the valve body (1), and a disassembly hole (3121) is provided at one end of the bottom cover (312) close to the water outlet channel (12).

5. A filtering ball valve according to claim 4, characterized in that, Clamping strips (341) are provided on both sides of the fixing frame (34), clamping protrusions (342) are provided at both ends of the clamping strips (341), and clamping grooves (3122) matched with the clamping protrusions (342) are provided on the top cover (311) and the bottom cover (312).

6. The filtering ball valve according to claim 5, wherein A sealing strip (343) is arranged between the clamping strip (341) and the first filter screen (32).

7. A filtering ball valve according to claim 6, characterized in that, Further comprising: A lower valve cover (6), the lower valve cover (6) is arranged below the bottom cover (312), and the lower valve cover (6) is fixedly threaded with the valve body (1).

8. The filtering ball valve according to claim 1, characterized in that, Further comprising: The valve stem (4), and the valve stem (4) extends into the interior of the valve body (1); The sealing part (5), the sealing part (5) is arranged between the valve body (1) and the valve stem (4), at least three V-shaped sealing rings (51) are arranged in the sealing part (5), one side of the V-shaped sealing ring (51) abuts against the valve stem (4), and the other side abuts against the inner wall of the valve body (1).

9. The filtering ball valve according to claim 8, wherein, The sealing part (5) further includes: The tightening ring (52), the tightening ring (52) is arranged at the bottom of the sealing part (5), and the top of the tightening ring (52) abuts against the opening of the V-shaped sealing ring (51).

10. A filtering ball valve according to claim 8, characterized in that, The valve stem (4) further includes: The handle (41), the handle (41) is fixed on the valve stem (4) and is used to manipulate the rotation of the valve stem (4).

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