Filter ball valve with cleanable filter screen

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a filter ball valve with a cleanable filter screen. Comprising a valve body; the valve ball is arranged in the valve body; one end of the valve rod is connected to the valve ball; the two sealing valve seats are arranged in the valve body; the filter cartridge is arranged in the through hole of the valve ball, and the filter cartridge comprises a cartridge body of a circular truncated cone-shaped structure and a cartridge bottom arranged at one end of the cartridge body; the nozzles are all arranged on the top of the valve body; the filter cartridge comprises a head end and a tail end, the diameter of the head end is smaller than that of the tail end, the tail end of the filter cartridge is connected to the end, close to the water outlet, of the through hole, the head end is located at the end, close to the water inlet, of the through hole, and a drain outlet is formed in the bottom of the valve body. When the ball valve is opened, the filter cartridge filters a medium and improves the filtering speed, and when the ball valve is closed, the nozzle at the top of the valve body flushes off impurities attached to the outer surface of the filter cartridge, and the impurities are discharged from the drain outlet at the bottom of the valve body along water flow, so that the filter cartridge is cleaned, and the cleaning efficiency is improved.

Description

Technical Field

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

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the transported medium. Among them, a ball valve controls the opening and closing of the valve by rotating the valve stem to make the valve ball rotate. After the ball valve is opened, the medium passes through the valve body. Since there may be a small amount of impurities in the flowing medium, the impurities will affect the quality of the flowing medium. For example, when the medium is tap water, there will be a small amount of sediment in the tap water, which affects daily drinking. Therefore, a filtering ball valve that can filter the medium is needed.

[0003] In the prior art, a filter screen is directly installed on the valve body or inside the valve ball. However, after the filter screen is used for a period of time, too many impurities will adhere to the surface of the filter screen, causing the filter screen to be blocked and affecting the flow rate of the medium. Therefore, it is necessary to manually remove the ball valve, clean the filter screen, and then reinstall it, which is time-consuming and laborious. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a filtering ball valve with a cleanable filter screen for the above-mentioned existing technical problems. When the ball valve is opened, the cylindrical body of the frustum-shaped structure of the filter cylinder can increase the filtering area and improve the filtering speed of the medium. When the ball valve is closed, the nozzle on the top of the valve body flushes the impurities attached to the outer surface of the filter cylinder, and the impurities flow out from the sewage outlet at the bottom of the valve body along with the water flow, so as to realize the cleaning of the filter cylinder and improve the cleaning efficiency.

[0005] In view of this, the utility model provides a filtering ball valve with a cleanable filter screen, including:

[0006] A valve body, with a water inlet at one end and a water outlet at the other end;

[0007] A valve ball, arranged inside the valve body, and a through hole communicating with the water inlet and the water outlet is arranged on the valve ball;

[0008] A valve stem, arranged on one side of the valve body, and one end of the valve stem is connected to the valve ball;

[0009] Two sealing valve seats, both arranged inside the valve body, and the two sealing valve seats respectively abut against both sides of the valve ball;

[0010] A filter cylinder, arranged inside the through hole of the valve ball, and the filter cylinder includes a cylindrical body with a frustum-shaped structure and a cylinder bottom arranged at one end of the cylindrical body;

[0011] Multiple nozzles, all arranged on the top of the valve body;

[0012] Among them, the filter cartridge includes a head end and a tail end, and the diameter of the head end is smaller than that of the tail end. The tail end of the filter cartridge is connected to one end of the through hole close to the water outlet, the head end is located at one end of the through hole close to the water inlet, and the bottom of the cylinder is arranged on the head end of the cylinder body. A sewage outlet is arranged at the bottom of the valve body, and a sewage plug is arranged on the sewage outlet.

[0013] In the above solution, further, a support frame is arranged on the filter cartridge, and the support frame includes:

[0014] Two support rings are respectively arranged on the head end and the tail end of the cylinder body;

[0015] A plurality of support rods are arranged on the outer peripheral wall of the cylinder body in a circumferential array, and both ends of the support rods are respectively connected to the two support rings.

[0016] In the above solution, further, a mounting seat is arranged on one end of the through hole of the valve ball close to the water outlet, and the tail end of the filter cartridge is connected to the mounting seat by a plurality of bolts.

[0017] In the above solution, further, an opening is arranged on the top of the valve seat, a cover body is arranged on the opening, and the nozzle is arranged on the cover body.

[0018] In the above solution, further, a disc spring is axially arranged between the valve body and the sealing valve seat, and both ends of the disc spring are axially abutted against the valve body and the sealing valve seat respectively.

[0019] In the above solution, further, an elastic sealing ring is arranged on the outer peripheral wall of the sealing valve seat, and the elastic sealing ring abuts against the inner peripheral wall of the valve body.

[0020] In the above solution, further, an annular diversion groove is arranged on the inner peripheral wall of the sealing valve seat, and the cross section of the annular diversion groove is trapezoidal.

[0021] The beneficial effects of the present utility model are:

[0022] 1. When the ball valve is opened, the cylinder body with a frustum-shaped structure of the filter cartridge can increase the filtration area and improve the medium filtration speed. When the ball valve is closed, the nozzle on the top of the valve body flushes the impurities attached to the outer surface of the filter cartridge, and the impurities flow out from the sewage outlet at the bottom of the valve body along with the water flow, thereby realizing the cleaning of the filter cartridge and improving the cleaning efficiency;

[0023] 2. An opening is arranged on the top of the valve seat, and a cover body is arranged on the opening. The diameter of the opening is larger than the diameter of the tail end of the filter cartridge. When replacing the filter cartridge, there is no need to remove the valve ball to take out the filter cartridge, which saves time and effort;

[0024] 3. The disc spring is elastic. After being installed into the sealing valve seat and inside the valve body, the disc spring is in a compressed state, so that the sealing valve seat tightly abuts against the surface of the valve ball, thereby further improving the sealing effect between the valve ball and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic cross-sectional structure diagram in the horizontal direction when the present utility model is opened;

[0026] Figure 2 is a schematic cross-sectional structure diagram in the side direction when the present utility model is closed;

[0027] Figure 3 is the Figure 2 structural schematic diagram at A of the present utility model;

[0028] Figure 4 is a structural schematic diagram of the filter cartridge of the present utility model.

[0029] The markings in the figures are indicated as:

[0030] 1, valve body; 2, valve ball; 3, valve stem; 4, sealing valve seat; 5, filter cartridge; 51, barrel body; 52, barrel bottom; 53, support frame; 531, support ring; 532, support rod; 6, nozzle; 7, drain plug; 8, through hole; 9, head end; 10, tail end; 11, drain port; 12, mounting seat; 13, opening; 14, cover body; 15, disc spring; 16, elastic sealing ring; 17, annular flow guide groove. SPECIFIC EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0032] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the sake of 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 said 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, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0033] Embodiment 1:

[0034] This embodiment provides a filter ball valve with a washable filter screen, including:

[0035] A valve body 1, with a water inlet provided at one end and a water outlet provided at the other end;

[0036] A valve ball 2, disposed within the valve body 1, and a through hole 8 communicating with the water inlet and the water outlet is provided on the valve ball 2;

[0037] A valve stem 3, disposed on one side of the valve body 1, and one end of the valve stem 3 is connected to the valve ball 2;

[0038] Two sealing valve seats 4, both disposed within the valve body 1, and the two sealing valve seats 4 respectively abut against both sides of the valve ball 2;

[0039] A filter cartridge 5, disposed within the through hole 8 of the valve ball 2, and the filter cartridge 5 includes a barrel body 51 having a frustum-shaped structure and a barrel bottom 52 provided at one end of the barrel body 51;

[0040] A plurality of nozzles 6, all disposed on the top of the valve body 1;

[0041] Wherein, the filter cartridge 5 includes a first end 9 and a second end 10, and the diameter of the first end 9 is smaller than the diameter of the second end 10. The second end 10 of the filter cartridge is connected to one end of the through hole 8 close to the water outlet, the first end 9 is located at one end of the through hole 8 close to the water inlet, the barrel bottom 52 is provided at the first end 9 of the barrel body 51, and a sewage outlet 11 is provided at the bottom of the valve body 1, and a sewage plug 7 is provided on the sewage outlet 11.

[0042] In this technical solution, the valve stem 3 is horizontally installed on the front side of the valve body 1, enabling the ball valve to be opened and closed from the side. In the open state, the medium can enter from the water inlet and discharge from the water outlet.

[0043] The sealing valve seat 4 is used to seal between the valve ball 2 and the valve body 1, and the sealing valve seat 4 can be made of polytetrafluoroethylene.

[0044] The filter cartridge 5 is used for filtering the medium. The cartridge body 51 is a frustum-shaped cylindrical structure formed by a fan-shaped annular filter net, and the bottom 52 of the cartridge is circular. Both the cartridge body 51 and the bottom 52 of the cartridge can be metal filter nets, and the bottom 52 of the cartridge can be welded to the first end 9 of the cartridge body 51. The frustum-shaped cartridge body 51 can increase the filtering area, reduce the resistance, and improve the filtering speed.

[0045] The nozzle 6 can be a conventional nozzle 6 with a water spraying effect, and the nozzle 6 can be threadedly connected to the valve body 1. When the nozzle 6 needs to be used, a water pipe can be connected externally, and the water pipe can be removed when not in use.

[0046] The drain plug 7 can be threadedly connected to the drain port 11, which is convenient for installation and disassembly under the condition of ensuring sealing.

[0047] When the ball valve is in the open state, the medium flows into the through hole 8 from the water inlet and is discharged from the water outlet. During this process, the filter cartridge 5 filters the impurities in the medium, leaving the impurities on the outer surface of the filter cartridge 5, thereby improving the quality of the medium.

[0048] As Figures 1 - 2 shown, rotate the valve stem 390 degrees clockwise, and the ball valve is in the closed state at this time. The first end 9 of the filter cartridge 5 is located below, and the tail end 10 is located above. Connect the nozzle 6 at the top of the valve body 1 to an external water pipe, and open the drain plug 7 at the bottom of the valve body 1. Then start using the nozzle 6 to wash the filter cartridge 5, wash off the impurities attached to the outer surface of the filter cartridge 5, and the impurities flow downward along with the water flow and are discharged from the drain port 11, thereby realizing the cleaning of the filter cartridge 5 without removing the filter cartridge 5 for manual cleaning, improving the cleaning efficiency, and reducing the steps of disassembling and installing the ball valve. After the cleaning is completed, install the drain plug 7 back onto the drain port 11.

[0049] Embodiment 2:

[0050] This embodiment provides a filter ball valve with a washable filter screen. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0051] A support frame 53 is provided on the filter cartridge, and the support frame 53 includes:

[0052] Two support rings 531 are respectively arranged on the first end 9 and the tail end 10 of the cartridge body 51;

[0053] A plurality of support rods 532 are arranged in a circumferential array on the outer peripheral wall of the cartridge body 51, and both ends of the support rod 532 are respectively connected to the two support rings 531.

[0054] In this technical solution, the support frame 53 is used to improve the structural strength of the filter cartridge 5. Among them, two support rings 531 are respectively used to support the head end 9 and the tail end 10 of the filter cartridge 5, and the support rod 532 is used to support the barrel body 51 of the filter cartridge 5, so as to improve the structural strength of the filter cartridge 5, prevent the filter cartridge 5 from deforming and affecting its use, and extend the service life of the filter cartridge 5.

[0055] Further, an installation seat 12 is provided at one end of the through hole 8 of the valve ball 2 close to the water outlet, and the tail end 10 of the filter cartridge 5 is connected to the installation seat 12 by a plurality of bolts.

[0056] In this technical solution, the tail end 10 of the filter cartridge 5 is connected to the installation seat 12 by a plurality of bolts, which can achieve the effect of quickly installing and disassembling the filter cartridge 5 and facilitate the replacement of the filter cartridge 5.

[0057] Embodiment 3:

[0058] This embodiment provides a filter ball valve with a washable filter screen. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0059] An opening 13 is provided on the top of the valve seat, a cover body 14 is provided on the opening 13, and the nozzle 6 is arranged on the cover body 14.

[0060] In this technical solution, the cover body 14 can be connected to the opening 13 by screws. The diameter of the opening 13 is larger than the diameter of the tail end 10 of the filter cartridge 5. When replacing the filter cartridge 5, it is not necessary to remove the valve ball 2 to take out the filter cartridge 5, which saves time and effort.

[0061] Embodiment 4:

[0062] This embodiment provides a filter ball valve with a washable filter screen. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0063] A disc spring 15 is axially arranged between the valve body 1 and the sealing valve seat 4, and both ends of the disc spring 15 are axially abutted against the valve body 1 and the sealing valve seat 4 respectively.

[0064] In this technical solution, the disc spring 15 has elasticity. After being installed into the sealing valve seat 4 to the valve body 1, the disc spring 15 is in a compressed state, so that the sealing valve seat 4 is tightly abutted against the surface of the valve ball 2, thereby further improving the sealing effect between the valve ball 2 and the valve body 1.

[0065] Further, an elastic sealing ring 16 is arranged on the outer peripheral wall of the sealing valve seat 4, and the elastic sealing ring 16 abuts against the inner peripheral wall of the valve body 1.

[0066] In this technical solution, the elastic sealing ring 16 can be made of elastic rubber material. The elastic sealing ring 16 is used to seal between the valve body 1 and the sealing valve seat 4, further improving the sealing effect of the ball valve.

[0067] Embodiment 5:

[0068] This embodiment provides a filter ball valve with a washable filter screen. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0069] An annular diversion groove 17 is provided on the inner peripheral wall of the sealing valve seat 4, and the cross-section of the annular diversion groove 17 is trapezoidal.

[0070] In this technical solution, as Figure 1 shown, the cross-section of the annular diversion groove 17 is trapezoidal, and the width of the groove opening is greater than the width of the groove bottom. Therefore, both sides of the annular diversion groove 17 are inclined surfaces. When the medium flows through the water inlet, the inclined surfaces on both sides can divert the medium, preventing impurities in the medium from gathering in the gap between the valve ball 2 and the sealing valve seat 4. Therefore, the annular diversion groove 17 can reduce the degree of surface wear of the sealing valve seat 4 and the valve ball 2 caused by impurities.

[0071] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A filter ball valve with a washable filter screen, characterized in that: include: A valve body (1) is provided with a water inlet at one end and a water outlet at the other end; A valve ball (2) is arranged in the valve body (1), and a through hole (8) communicating with the water inlet and the water outlet is arranged on the valve ball (2); A valve stem (3) is arranged on one side of the valve body (1), and one end of the valve stem (3) is connected to the valve ball (2); Two sealing valve seats (4) are both arranged in the valve body (1), and the two sealing valve seats (4) respectively abut against two sides of the valve ball (2); A filter cartridge (5) is arranged in the through hole (8) of the valve ball (2), and the filter cartridge (5) comprises a cartridge body (51) in a truncated cone-shaped structure and a cartridge bottom (52) arranged at one end of the cartridge body (51); A plurality of nozzles (6) are arranged on the top of the valve body (1); The filter cartridge (5) comprises a head end (9) and a tail end (10), and the diameter of the head end (9) is smaller than the diameter of the tail end (10); the tail end (10) of the filter cartridge is connected to the end of the through hole (8) close to the water outlet, the head end (9) is located at the end of the through hole (8) close to the water inlet, the cartridge bottom (52) is arranged on the head end (9) of the cartridge body (51), the bottom of the valve body (1) is provided with a sewage outlet (11), and a sewage outlet plug (7) is arranged on the sewage outlet (11).

2. A filter ball valve with a washable filter screen according to claim 1, characterized in that: The filter cartridge is provided with a support frame (53), and the support frame (53) comprises: Two support rings (531) are respectively arranged on the head end (9) and the tail end (10) of the barrel (51); A plurality of support rods (532) are arranged in a circular array on the outer peripheral wall of the barrel (51), and two ends of the support rods (532) are respectively connected to the two support rings (531).

3. A filter ball valve with a washable filter screen according to claim 1, characterized in that: A mounting seat (12) is provided on one end of the through hole (8) of the valve ball (2) close to the water outlet, and a plurality of bolts are provided between the rear end (10) of the filter cartridge (5) and the mounting seat (12).

4. A filter ball valve with a washable filter screen according to claim 1, characterized in that: An opening (13) is arranged on the top of the valve seat, a cover body (14) is arranged on the opening (13), and the nozzle (6) is arranged on the cover body (14).

5. The filter ball valve with a washable filter screen according to claim 1, characterized in that: A disc spring (15) is axially arranged between the valve body (1) and the sealing valve seat (4), and two ends of the disc spring (15) are axially abutted against the valve body (1) and the sealing valve seat (4) respectively.

6. A filter ball valve with a washable filter screen according to claim 5, characterized in that: An elastic sealing ring (16) is arranged on the outer peripheral wall of the sealing valve seat (4), and the elastic sealing ring (16) abuts against the inner peripheral wall of the valve body (1).

7. The filter ball valve with a washable filter screen according to claim 1, characterized in that: An annular guide groove (17) is provided on the inner peripheral wall of the sealing valve seat (4), and the cross section of the annular guide groove (17) is trapezoidal.

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