Wear-resistant ball valve

Abstract

The utility model discloses a wear-resisting ball valve which comprises a wear-resisting ball valve body and a cleaning assembly, the cleaning assembly comprises a filter plate, the filter plate is detachably installed in the wear-resisting ball valve body and located on one side of a liquid inlet, a bearing is installed in the center of the filter plate, a rotating shaft is installed on the bearing in a penetrating mode, and the rotating shaft is connected with a motor. And a pair of rotating plates are installed on the rotating shaft and arranged on the two sides of the filtering plate correspondingly, and the upper end and the lower end of the side wall of the side, facing the filtering plate, of each rotating plate are fixedly connected with a pair of scraping plates. According to the utility model, the scraper blade and the impeller are mounted on the rotating shaft in a manner convenient to disassemble and assemble, so that relevant parts are convenient to replace after being abraded; the scraping plates and the brush bodies driven by the rotating plates to rotate are arranged on the two sides of the filter plate, so that blocked and adhered impurities on the surface of the filter plate and in the filter holes can be cleaned, and a medium can normally pass through the filter plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ball valve, concretely relates to a wear -resisting ball valve. BACKGROUND

[0002] Ball valve is usually applied in petroleum refining, long -distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and so on, holds the pivotal position in national economy, it can make the action of rotating 90 degrees, plug body is spherical, has circular through -hole or passageway through its axis.

[0003] The utility model discloses a wear -resisting ball valve, including valve body, bolt three, handle, handle cover, gland, fixed body, valve rod, clamping seat, sealing ring, ball, passageway, wear -resisting layer, rotating seat, rotating rod, left fixed ring, bolt two, input pipe, right fixed ring, output pipe, filter plate, bolt one, scraper, pivot, impeller, collecting groove and plug body. The utility model discloses the impeller is arranged at the input pipe part, can rotate under the flow of water, drives the scraper to rotate, cleans the outer surface of filter plate, prevents the impurity particle from gathering on the filter plate surface, keeps the flow rate of water, and frequently cleans the filter plate is not needed.

[0004] But the wear -resisting ball valve of above -mentioned patent discloses when using, the scraper and impeller are connected through fixed installation's mode, make after the wear of scraper and impeller inconvenient replacement, the impurity that the scraper is blocked in filter hole of filter plate and the impurity that is easy to adhere are inconvenient to clean, make when using the filter plate influence the cut -off transport even the filter plate is blocked.

[0005] The information disclosed in this Background section is only for the purpose of increasing the understanding of the background of the present utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms prior art that is publicly known. CONTENT OF THE UTILITY MODEL

[0006] The utility model discloses a wear -resisting ball valve, which can solve the problem of inconvenient replacement of the scraper and impeller after wear, and the problem of blockage of the filter hole of the filter plate by impurities and easily adhered impurities.

[0007] In order to achieve the above-mentioned purpose, the technical scheme provided by the utility model in one embodiment is as follows:

[0008] A wear -resisting ball valve, comprising a wear -resisting ball valve body, the wear -resisting ball valve further comprising:

[0009] The cleaning assembly comprises a filter plate which is detachably installed in the wear-resistant ball valve body on one side of the liquid inlet, so that the filter plate filters the medium entering the wear-resistant ball valve body and slows down the wear of the wear-resistant ball valve body caused by particulate impurities. Meanwhile, the detachable installation of the filter plate makes the filter plate convenient to replace and maintain. A bearing is installed at the center of the filter plate, and a rotating shaft is installed on the bearing in a penetrating manner, so that the rotating shaft can rotate through the bearing. A pair of rotating plates are installed on the rotating shaft, and a pair of the rotating plates are arranged on the two sides of the filter plate, respectively. The rotation of the rotating shaft can drive the pair of rotating plates to rotate on the two sides of the filter plate. A pair of scraper plates are fixedly connected to the side walls on the upper and lower ends of the rotating plate on the side facing the filter plate, and the ends of the pair of scraper plates away from the rotating plate abut against the side walls of the filter plate. The rotation of the rotating plate can drive the pair of scraper plates to rotate. Since the scraper plates abut against the side walls of the filter plate, the scraper plates can scrape and clean the impurities on the filter plate when rotating, so as to avoid the blockage of the filter holes caused by the attachment of the impurities on the filter plate. A brush body is detachably installed on the side wall of the rotating plate on the side facing the filter plate, and the rotating plate and the side wall of the corresponding filter plate are in interference fit. When the rotating plate drives the brush body to rotate, the brush body can brush and clean the surface of the filter plate and the filter holes, so that the difficult-to-clean impurities attached to the surface of the filter plate and the filter holes are cleaned through brushing, and the blockage of the filter holes is effectively avoided.

[0010] In one or more embodiments of the present application, the pair of scraper plates are symmetrically arranged at the upper and lower ends of the rotating plate, so that the scraper plates can clean the impurities on the surface of the filter plate regardless of the forward rotation or reverse rotation of the rotating plate. The included angle between the scraper plate and the filter plate is 45 degrees, so that the cleaning effect of the scraper plate on the impurities on the surface of the filter plate is better.

[0011] In one or more embodiments of the present application, the filter plate is made of corrosion-resistant and wear-resistant stainless steel material, so that the filter plate can be used for a long time when conveying chemical medium. The brush body is made of corrosion-resistant and wear-resistant nylon material, so that the brush body can efficiently clean the surface of the filter plate and the filter holes without being corroded and worn by the conveyed medium, and the service life of the brush body is improved.

[0012] In one or more embodiments of the present application, a pair of sliding grooves are formed in the side walls at the two ends of the rotating shaft, a first sleeve hole is formed at the center of the rotating plate, a pair of first sliding blocks are integrally formed on the inner side wall of the first sleeve hole, and the pair of first sliding blocks are slidingly connected in the pair of sliding grooves. Through the cooperation of the first sliding block and the sliding groove, when the rotating plate is sleeved on the rotating shaft through the first sleeve hole, the rotating shaft can stably drive the rotating plate to rotate, and the rotating plate is convenient to disassemble and assemble when installed on the rotating shaft, so as to facilitate the later maintenance and replacement.

[0013] In one or more embodiments of the utility model, the filter plate is installed with an impeller on the side close to the liquid inlet of the wear -resisting ball valve body, the impeller is installed on the outside of the rotating plate on the same side of the filter plate, when the medium enters the wear -resisting ball valve body, the flow of medium will drive the impeller to rotate, so as to realize the rotation of the rotating plate in use by the rotation of the impeller.

[0014] In one or more embodiments of the utility model, the second sleeve hole is formed in the center of the impeller, a pair of second sliding blocks are integrally formed on the inner side wall of the second sleeve hole, and a pair of the second sliding blocks are slidingly connected in a pair of sliding grooves. Through the cooperation of the second sliding block and the sliding groove, when the impeller is sleeved on the rotating shaft through the second sleeve hole, the rotation of the impeller can drive the rotating shaft to rotate, and at the same time, the impeller installed on the rotating shaft is convenient to disassemble and assemble, so as to facilitate subsequent maintenance and replacement.

[0015] In one or more embodiments of the utility model, the rotating shaft is threadedly connected with a pair of limiting nuts at both ends, and the pair of limiting nuts respectively abut on the outer side wall of the impeller and the outer side wall of the rotating plate arranged on different sides of the impeller. Through the limiting nut, the impeller and the rotating plate can be stably installed on the rotating shaft.

[0016] In one or more embodiments of the utility model, the inner side wall of the wear -resisting ball valve body is fixedly connected with a first limiting ring, and the side of the filter plate away from the liquid inlet of the wear -resisting ball valve body abuts on the first limiting ring. The side of the filter plate is limited by the first limiting ring.

[0017] In one or more embodiments of the utility model, the inner side wall of the wear -resisting ball valve body close to the liquid inlet is threadedly connected with a second limiting ring, the side wall of the second limiting ring is fixedly connected with a supporting rod, and the supporting rod abuts on the side wall of the filter plate away from the first limiting ring. The side of the filter plate away from the first limiting ring is limited by the cooperation of the second limiting ring and the supporting rod, so that the filter plate installed in the wear -resisting ball valve body is stable.

[0018] In one or more embodiments of the utility model, the bottom of the wear -resisting ball valve body is provided with a discharge port, the bottom of the wear -resisting ball valve body is integrally formed with a collecting groove at the lower end of the discharge port, and the bottom of the collecting groove is provided with a plug. The impurities intercepted by the filter plate can be collected in the collecting groove through the discharge port, and can be periodically discharged through the plug.

[0019] Compared with the prior art, the scraper and the impeller are installed on the rotating shaft in a convenient dismounting mode, so that the related components can be conveniently replaced after wearing; the scraper and the brush body driven to rotate by the rotating plate arranged on the two sides of the filter plate can clean the impurities blocked and adhered in the filter hole and on the surface of the filter plate, and ensure that the medium can normally pass through the filter plate. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0021] Figure 1 It is a schematic view of a wear-resistant ball valve in an embodiment of the present application.

[0022] Figure 2 It is a sectional view of a wear-resistant ball valve in an embodiment of the present application.

[0023] Figure 3 It is a sectional view of a wear-resistant ball valve in an embodiment of the present application.

[0024] Figure 4 It is a schematic view of A in the present application. Figure 3

[0025] Figure 5 It is an exploded view of the rotating shaft, the rotating plate and the impeller in the present application.

[0026] Figure 6 It is a schematic view of B in the present application. Figure 5

[0027] It is a schematic view of the rotating plate in the present application. Figure 7 MAIN REFERENCE NUMERALS EXPLANATION

[0028] 1-wear-resistant ball valve body, 2-cleaning assembly, 21-filter plate, 22-bearing, 23-rotating shaft, 24-rotating plate, 25-scraper, 26-brush body, 27-sliding groove, 28-first sleeve hole, 29-first sliding block, 210-impeller, 211-second sleeve hole, 212-second sliding block, 213-limiting nut, 214-fixed limiting ring, 215-moving limiting ring, 216-supporting rod, 217-discharge port, 218-collecting groove, 219-plug body.

[0029] DETAILED DESCRIPTION

[0030] ​​To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0031] like Figures 1-3 As shown, a wear-resistant ball valve in one embodiment of the present invention includes a wear-resistant ball valve body 1 and a cleaning assembly 2.

[0032] like Figures 1-7 As shown, the cleaning assembly 2 includes a filter plate 21, which is detachably installed inside the wear-resistant ball valve body 1 on one side of the inlet. This allows the filter plate 21 to filter the medium entering the wear-resistant ball valve body 1, reducing the wear of particulate impurities on the body. The detachable installation of the filter plate 21 also facilitates replacement and maintenance. A bearing 22 is installed at the center of the filter plate 21, and a rotating shaft 23 is mounted through the bearing 22, allowing the shaft to rotate. A pair of rotating plates 24 are mounted on the rotating shaft 23, positioned on either side of the filter plate 21. Rotation of the shaft 23 causes the rotating plates 24 to rotate on both sides of the filter plate 21. A pair of scrapers 25 are fixedly connected to the upper and lower ends of the side wall of the rotating plate 24 facing the filter plate 21. The ends of the scrapers 25 away from the rotating plate 24 abut against the side wall of the filter plate 21. The rotation of the rotating plate 24 drives the pair of scrapers 25 to rotate. Since the scrapers 25 abut against the side wall of the filter plate 21, the rotation of the scrapers 25 can scrape and clean the impurities on the filter plate 21, preventing impurities from adhering to the filter plate 21 and causing filter pore blockage. A brush body 26 is detachably installed on the side wall of the rotating plate 24 facing the filter plate 21. There is an interference fit between the rotating plate 24 and the corresponding side wall of the filter plate 21. When the rotating plate 24 drives the brush body 26 to rotate, the brush body 26 can brush and clean the surface and filter pores of the filter plate 21, so that the hard-to-clean impurities adhering to the surface and filter pores of the filter plate 21 can be cleaned by brushing, effectively preventing filter pore blockage.

[0033] Preferably, the bearing 22 adopts a very low speed bearing, so that the rotating shaft 23 has a small rotating speed, and the rotating plate 24 driven by the rotating shaft 23 also has a small rotating speed, so that when the wear-resistant ball valve body 1 conveys the medium, the rotating of the rotating plate 24 has a small influence on the flow of the medium in the wear-resistant ball valve body 1. The rotating plate 24 is arranged on both sides of the filter plate 21, and when the rotating plate 24 rotates to drive the scraper 25 and the brush body 26 to rotate, the two sides of the filter plate 21 can be cleaned synchronously, so that the impurities adhered to the two sides of the filter plate 21 are cleaned at the same time. Meanwhile, the rotating plate 24 on the two sides of the filter plate 21 is arranged in an interlaced manner, so that the brush bodies 26 on the two sides do not overlap each other, so that the interference fit between the brush body 26 and the filter plate 21 can effectively dredge the filter holes of the filter plate 21, avoiding that the filter holes are blocked by impurities, and ensuring that the medium can pass through the filter plate 21 normally.

[0034] As shown in Figure 4 and Figure 7 , a pair of scrapers 25 are arranged on the upper and lower ends of the rotating plate 24 in a symmetrical manner, so that the scraper 25 can clean the impurities on the surface of the filter plate 21 no matter the rotating plate 24 rotates forward or reversely. The included angle between the scraper 25 and the filter plate 21 is set to 45 degrees, so that the cleaning effect of the scraper 25 on the impurities on the surface of the filter plate 21 is better.

[0035] Preferably, the filter plate 21 is made of stainless steel material with good corrosion resistance and wear resistance, so that the filter plate 21 can be used for a long time when conveying chemical medium. The brush body 26 is made of nylon material with good corrosion resistance and wear resistance, so that the brush body 26 can efficiently clean the surface and filter holes of the filter plate 21 without being corroded and worn by the conveyed medium, and the service life of the brush body 26 is improved.

[0036] As shown in Figure 5 in combination with Figure 6 , a pair of sliding grooves 27 are formed on the side walls of the two ends of the rotating shaft 23, and a first sleeve hole 28 is formed at the center of the rotating plate 24. A pair of first sliding blocks 29 are integrally formed on the inner side wall of the first sleeve hole 28, and the pair of first sliding blocks 29 are slidingly connected in the pair of sliding grooves 27. Through the cooperation of the first sliding block 29 and the sliding groove 27, when the rotating plate 24 is sleeved on the rotating shaft 23 through the first sleeve hole 28, the rotating shaft 23 can stably drive the rotating plate 24 to rotate, and the rotating plate 24 is convenient to disassemble and assemble when installed on the rotating shaft 23, so as to facilitate the later maintenance and replacement.

[0037] Preferably, a pair of grooves 27 near the two ends of the filter plate 21 limit the pair of rotating plates 24 on both sides of the filter plate 21, ensuring that when the first slider 29 abuts against the side wall of the groove 27 and the rotating plates 24 can no longer approach the filter plate 21, the scraper 25 abuts against the side wall of the filter plate 21 and the brush body 26 and the filter plate 21 are interference-fitted, so that the scraper 25 and the filter plate 21 can rotate relative to each other.

[0038] like Figure 1 As shown, an impeller 210 is installed on the side of the filter plate 21 near the liquid inlet of the wear-resistant ball valve body 1. The impeller 210 is installed on the outside of the rotating plate 24 on the same side as the filter plate 21. When the medium enters the wear-resistant ball valve body 1, the flow of the medium will drive the impeller 210 to rotate, so that the rotation of the impeller 210 will drive the rotating shaft 23 to rotate, thereby realizing the rotation of the rotating plate 24 during use.

[0039] like Figure 5 Combination Figure 6 As shown, a second socket 211 is provided at the center of the impeller 210. A pair of second sliders 212 are integrally formed on the inner wall of the second socket 211, and the pair of second sliders 212 are slidably connected in a pair of sliding grooves 27. Through the cooperation of the second sliders 212 and the sliding grooves 27, when the impeller 210 is sleeved on the rotating shaft 23 through the second socket 211, the rotation of the impeller 210 can drive the rotating shaft 23 to rotate. At the same time, it makes it easy to install and remove the impeller 210 from the rotating shaft 23, so as to facilitate subsequent maintenance and replacement.

[0040] like Figure 3 Combination Figure 4 As shown, both ends of the rotating shaft 23 are threaded with a pair of limiting nuts 213. The pair of limiting nuts 213 abut against the outer wall of the impeller 210 and the outer wall of the rotating plate 24 arranged on different sides of the impeller 210, respectively. The limiting nuts 213 ensure that the impeller 210 and the rotating plate 24 are stable when installed on the rotating shaft 23.

[0041] like Figure 3 As shown, a first limiting ring 214 is fixedly connected to the inner wall of the wear-resistant ball valve body 1. The side of the filter plate 21 away from the liquid inlet of the wear-resistant ball valve body 1 abuts against the first limiting ring 214, and the first limiting ring 214 limits one side of the filter plate 21.

[0042] like Figure 1 and Figure 2As shown, the second limiting ring 215 is threadedly connected to the inner side wall of the wear-resistant ball valve body 1 close to the liquid inlet, the side wall of the second limiting ring 215 is fixedly connected with a support rod 216, the support rod 216 abuts against the side wall of the filter plate 21 away from the first limiting ring 214, and the side of the filter plate 21 away from the first limiting ring 214 is limited by the cooperation of the second limiting ring 215 and the support rod 216, so that the filter plate 21 is stably installed in the wear-resistant ball valve body 1. At the same time, the second limiting ring 215 is convenient to disassemble, so that the filter plate 21 is convenient to disassemble.

[0043] As shown in Figure 2 and Figure 3 As shown, the bottom of the wear-resistant ball valve body 1 is provided with a discharge port 217, the bottom of the wear-resistant ball valve body 1 is integrally formed with a collecting groove 218 at the lower end of the discharge port 217, and the bottom of the collecting groove 218 is provided with a plug 219. The impurities intercepted by the filter plate 21 can be collected in the collecting groove 218 through the discharge port 217 and can be regularly discharged through the plug 219.

[0044] In use, first, the cleaning assembly is assembled and then installed in the wear-resistant ball valve body 1, and the filter plate 21 is stably installed in the wear-resistant ball valve body 1 by the cooperation of the second limiting ring 215 and the first limiting ring 214; then the wear-resistant ball valve body 1 is installed on the medium conveying pipeline, when the wear-resistant ball valve body 1 is opened, the medium entering the wear-resistant ball valve body 1 can drive the impeller 210 to rotate, the rotation of the impeller 210 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives a pair of rotating plates 24 located on both sides of the filter plate 21 to rotate, so as to drive the scraper 25 and the brush body 26 to rotate, and the impurities adhered to the surface of the filter plate 21 and the filter holes can be cleaned by the scraper 25 and the brush body 26, so that the filter plate 21 filters the medium entering the wear-resistant ball valve body 1 while the medium can be normally conveyed through the filter plate 21.

[0045] It should be noted that the technical improvement of the present application is to improve the cleaning assembly installed in the wear-resistant ball valve, and since the cleaning assembly is arranged at the front end of the valve body of the wear-resistant ball valve, the installation of the cleaning assembly does not involve the improvement of the valve body, and therefore the valve body of the wear-resistant ball valve is not shown in the schematic diagram. The valve body is prior art and will not be described here.

[0046] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0047] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A wear ball valve comprising a wear ball valve body, characterized in that, The wear-resistant ball valve further comprises: The cleaning assembly comprises a filter plate which is detachably installed in the wear-resistant ball valve body on one side of the liquid inlet, a bearing is installed at the center of the filter plate, a rotating shaft is installed in a penetrating manner on the bearing, a pair of rotating plates are installed on the rotating shaft, a pair of the rotating plates are respectively arranged on both sides of the filter plate, a pair of scraper plates are fixedly connected to the upper and lower ends of the side wall on the side of the rotating plate facing the filter plate, the ends of the pair of scraper plates away from the rotating plate are abutted on the side wall of the filter plate, a brush body is detachably installed on the side wall on the side of the rotating plate facing the filter plate, and the rotating plate and the side wall of the filter plate are in interference fit.

2. A wear ball valve according to claim 1, wherein The pair of scraper plates are symmetrically arranged at the upper and lower ends of the rotating plate, and the included angle formed between the scraper plate and the filter plate is 45 degrees.

3. A wear ball valve according to claim 1, wherein The filter plate is made of corrosion-resistant and wear-resistant stainless steel, and the brush body is made of corrosion-resistant and wear-resistant nylon.

4. A wear ball valve according to claim 1, wherein A pair of sliding grooves are formed on the side walls of the two ends of the rotating shaft, a first sleeve hole is formed at the center of the rotating plate, and a pair of first sliding blocks are integrally formed on the inner side wall of the first sleeve hole and are slidably connected in the pair of sliding grooves.

5. A wear ball valve according to claim 4, wherein A impeller is installed on the side of the filter plate close to the liquid inlet of the wear-resistant ball valve body, and the impeller is installed on the outer side of the rotating plate on the same side of the filter plate.

6. A wear ball valve according to claim 5, wherein A second sleeve hole is formed at the center of the impeller, a pair of second sliding blocks are integrally formed on the inner side wall of the second sleeve hole and are slidably connected in the pair of sliding grooves.

7. A wear ball valve according to claim 6, wherein A pair of limiting nuts are threadedly connected to the two ends of the rotating shaft, and the pair of limiting nuts are abutted on the outer side walls of the impeller and the rotating plates arranged on different sides of the impeller, respectively.

8. A wear ball valve according to claim 1, wherein A first limiting ring is fixedly connected to the inner side wall of the wear-resistant ball valve body, and the side of the filter plate away from the liquid inlet of the wear-resistant ball valve body is abutted on the first limiting ring.

9. A wear ball valve according to claim 8, characterised in that A second limiting ring is threadedly connected to the inner side wall of the wear-resistant ball valve body close to the liquid inlet, a support rod is fixedly connected to the side wall of the second limiting ring, and the support rod is abutted on the side wall of the filter plate away from the first limiting ring.

10. A wear ball valve according to claim 1, wherein A discharge port is formed in the bottom of the wear-resistant ball valve body, a collecting groove is integrally formed at the lower end of the discharge port in the bottom of the wear-resistant ball valve body, and a plug body is installed at the bottom of the collecting groove.

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