Wear-resistant valve core

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a wear-resistant valve element which comprises a spherical valve element body. The mounting groove is formed in the top of the valve body and used for being connected with the valve rod, and the bottom of the mounting groove is arc-shaped; the wear-resistant part is detachably arranged in the valve element body, a flow channel is formed in the wear-resistant part, a liquid inlet and a liquid outlet are formed in the two sides of the flow channel correspondingly, two planes located on the same axis with the center line of the flow channel are formed on the outer surface of the valve element body, and the two planes are the first contact plane and the second contact plane; the two planes are symmetrically arranged on the two sides of the valve element body, and the liquid inlet and the liquid outlet are formed in the two planes respectively. The valve element has the beneficial effects that the wear-resistant part is detachably arranged in the valve element body, when the wear-resistant part needs to be replaced due to abrasion, the valve element does not need to be integrally replaced, only the wear-resistant part needs to be independently replaced, the maintenance process is simplified, the maintenance difficulty and cost are reduced, and the usability and economical efficiency of equipment are improved.

Description

Technical Field

[0001] The present application belongs to the field of valve technology, and in particular relates to a wear-resistant valve core. Background Art

[0002] The ball valve opening and closing part (ball) is driven by the valve stem and rotates around the ball valve axis. It can also be used for fluid regulation and control. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method. The currently known ball valves mainly include valve body, valve stem, ball and sealing ring. The ball valve is sealed by the close contact between the ball and the sealing ring, and the ball is rotated to open and close the valve.

[0003] The patent with publication number CN206738620U discloses a wear-resistant ball valve core, including a sphere, a circulation pipe and a valve stem mounting seat; the sphere is a hollow structure, the valve stem mounting seat is welded to the top of the sphere, and a block protruding toward the center of the circle is fixedly arranged in the valve stem mounting hole; a circle of sealing ring is sleeved on the outer side of the valve stem mounting seat; a number of through holes are opened on the sphere corresponding to the two ends of the circulation pipe; an anti-corrosion layer is coated on the inner wall of the circulation pipe; a heat insulation layer is filled in the sphere outside the circulation pipe; and a wear-resistant layer is coated on the outer surface of the sphere.

[0004] The above patent improves the wear resistance of the sphere by coating the outer surface of the sphere with a wear-resistant layer. However, it is obviously not enough to rely solely on the wear-resistant layer for wear protection, and improvement is needed. Utility Model Content

[0005] The purpose of this application is to provide a wear-resistant valve core that can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a wear-resistant valve core, comprising:

[0007] The valve core body is spherical;

[0008] The mounting groove is arranged on the top of the valve body and is used to connect the valve stem, and the bottom of the mounting groove is arc-shaped;

[0009] The wear-resistant part is detachably arranged in the valve core body, and a flow channel is arranged inside it, and the two sides of the flow channel are respectively the liquid inlet and the liquid outlet

[0010] Among them, two planes located on the same axis as the center line of the flow channel are formed on the outer surface of the valve core body. The two planes are the first contact plane and the second contact plane, and the two planes are symmetrically arranged on both sides of the valve core body, and the liquid inlet and the liquid outlet are respectively arranged on the two planes.

[0011] By adopting the above-mentioned wear-resistant valve core, the wear-resistant parts are detachably arranged in the valve core body. The wear-resistant parts directly bear the scouring and wear of the fluid medium, which effectively protects the main structure of the valve core body. It is made of high-hardness, high-wear-resistant alloy or ceramic, which can significantly extend the service life of the valve core and reduce the replacement frequency and maintenance cost caused by wear. The valve core body adopts a spherical design, and two planes coaxial with the center line of the flow channel are formed on the outer surface. These two planes can be used as installation surfaces to contact the wear-resistant parts and provide support. At the same time, in the present application, the wear-resistant parts are a detachable structure. When the wear-resistant parts need to be replaced due to wear, there is no need to replace the valve core as a whole. Only the wear-resistant parts need to be replaced separately, which simplifies the maintenance process, reduces the difficulty and cost of maintenance, and improves the availability and economy of the equipment.

[0012] Furthermore, the wear-resistant parts include:

[0013] The plug-in connector includes a first mounting surface and a first lining disposed on the first mounting surface;

[0014] The fixing member comprises a second mounting surface and a second lining arranged on the second mounting surface;

[0015] Among them, an inner ring is arranged on the second lining, a slot is formed between the inner ring and the valve core body, and a plug adapted to the slot is arranged on the first lining.

[0016] The design of the connector and the fixing makes the wear-resistant part a detachable modular component, which not only simplifies the installation and replacement process of the wear-resistant part, but also allows the wear-resistant part to be replaced in time after being damaged, thereby improving the adaptability and flexibility of the valve core. At the same time, a wear-resistant layer is also provided on the first liner and the second liner, which can significantly extend the service life of the wear-resistant part and reduce the performance degradation and replacement frequency caused by wear. In addition, by providing a slot on the inner ring and providing a plug that matches the slot on the first liner, a stable connection structure is formed between the connector and the fixing, which prevents the wear-resistant part from loosening or falling off. Moreover, when the wear-resistant part needs to be replaced due to wear, it is only necessary to remove the connection between the connector and the fixing, and then install the new wear-resistant part into the valve core body, which simplifies the maintenance process and reduces maintenance costs and time.

[0017] Further: the plug is provided with an annular groove, a first sealing ring is provided in the annular groove, and the first sealing ring is in contact with the outer wall of the inner ring.

[0018] By providing a ring groove on the plug and arranging a first sealing ring in the ring groove, the first sealing ring can be closely fitted on the outer wall of the inner ring to form an effective sealing barrier, effectively preventing the fluid medium from leaking from the gap between the wear-resistant part and the valve core body, and improving the sealing performance. At the same time, the material of the first sealing ring can be selected according to the properties of the fluid medium to ensure good sealing effect and corrosion resistance.

[0019] Furthermore, the wear-resistant part is connected to the valve core body via a connecting assembly, and the connecting assembly includes:

[0020] A first connecting member, disposed on the first mounting surface, and used to fix the plug-in member on the first contact plane;

[0021] A second connecting member, disposed on the second mounting surface, and used to fix the fixing member on the second contact plane;

[0022] Wherein, a second sealing ring is arranged between the first mounting surface and the first contact plane, and between the second mounting surface and the second contact plane.

[0023] The first connector and the second connector are responsible for firmly fixing the plug-in and the fixing member on the first and second contact planes of the valve core body, respectively, which can effectively ensure the stability of the wear-resistant parts under harsh working conditions such as high pressure and high flow rate, and prevent failures caused by loosening or falling off. At the same time, the second sealing ring is set between the second mounting surface and the first and second contact planes to further enhance the sealing effect between the wear-resistant parts and the valve core body. The sealing ring can fit tightly on the contact surface to form a multiple sealing barrier, effectively prevent leakage of fluid media, and improve the sealing performance of the valve.

[0024] Furthermore, the first connecting member includes:

[0025] A first limiting groove is arranged on the first mounting surface;

[0026] A first through hole, disposed in the first limiting groove and penetrating the first mounting surface;

[0027] A first threaded hole is provided on the first contact plane;

[0028] a first fastener;

[0029] There are a plurality of first limiting grooves, and the first fastener passes through the first limiting groove and the first through hole in sequence and is connected to the first threaded hole.

[0030] By setting a plurality of first limiting grooves and opening a first through hole in the first limiting groove, the first fastener passes through the first limiting groove and the first through hole in sequence and is connected to the first threaded hole. After installation, the first fastener is located in the first limiting groove, and its height is not higher than the first limiting groove, and the first limiting groove serves to limit the first fastener. At the same time, the first through hole, the first threaded hole and the first limiting groove are located on the same axis, and the first fastener can be conveniently fixed on the first contact plane by tightening. In addition, the provision of a plurality of first limiting grooves and first through holes improves the strength of the overall connection structure.

[0031] Furthermore, the second connecting member includes:

[0032] A second limiting groove is arranged on the second mounting surface;

[0033] A second through hole, disposed in the second limiting groove and penetrating the second mounting surface;

[0034] A second threaded hole is provided on the second contact plane;

[0035] Wherein, a plurality of second limiting grooves are provided.

[0036] By providing a plurality of second limiting grooves and opening a second through hole in the second limiting groove, the second fastener passes through the second limiting groove and the second through hole in sequence and is connected to the second threaded hole. After installation, the second fastener is located in the second limiting groove, and its height is not higher than the second limiting groove, and the second limiting groove serves to limit the second fastener. At the same time, the second through hole, the second threaded hole and the second limiting groove are located on the same axis, and the second fastener can be conveniently fixed on the second contact plane by tightening. In addition, the provision of a plurality of second limiting grooves and second through holes improves the strength of the overall connection structure.

[0037] The beneficial effects of this application are:

[0038] 1. By detachably arranging the wear-resistant parts in the valve core body, the wear-resistant parts directly bear the scouring and wear of the fluid medium, effectively protecting the main structure of the valve core body. The wear-resistant parts are detachable structures. When the wear-resistant parts need to be replaced due to wear, there is no need to replace the valve core as a whole, but only to replace the wear-resistant parts separately, which simplifies the maintenance process, reduces the difficulty and cost of maintenance, and improves the availability and economy of the equipment;

[0039] 2. By providing a slot on the inner ring and a plug that matches the slot on the first inner lining, a stable connection structure is formed between the connector and the fixing part, which prevents the wear-resistant part from loosening or falling off. Moreover, when the wear-resistant part needs to be replaced due to wear, it is only necessary to disassemble the connection between the connector and the fixing part, and then install the new wear-resistant part into the valve core body, which simplifies the maintenance process and reduces maintenance costs and time;

[0040] 3. By opening a ring groove on the plug and arranging a first sealing ring in the ring groove, the first sealing ring can fit tightly on the outer wall of the inner ring to form an effective sealing barrier, effectively preventing the fluid medium from leaking from the gap between the wear-resistant part and the valve core body, and improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of the utility model;

[0042] Figure 2 It is a structural schematic diagram of the utility model from one viewing angle;

[0043] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0044] Figure 4 yes Figure 3 A magnified view of middle;

[0045] Figure 5 yes Figure 3 Enlarged view of B.

[0046] The reference numerals in the figure are: 100, valve core body; 110, first contact plane; 120, second contact plane; 200, mounting groove; 210, flow channel; 300, plug-in connector; 310, first mounting surface; 320, first lining; 330, plug; 340, ring groove; 350, first sealing ring; 400, fixing member; 410, second mounting surface; 420, second lining; 430, inner ring; 440, slot; 500, connecting assembly; 510, first connecting member; 511, first limiting groove; 512, first through hole; 513, first threaded hole; 514, first fastener; 520, second connecting member; 521, second limiting groove; 522, second through hole; 523, second threaded hole; 524, second fastener; 530, second sealing ring. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions 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 ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0048] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0049] The wear-resistant valve core provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0050] Embodiment 1:

[0051] like Figures 1 to 3 As shown, the embodiment of the present application provides a wear-resistant valve core, including:

[0052] The valve core body 100 is spherical;

[0053] The mounting groove 200 is arranged at the top of the valve body and is used to connect the valve stem. The bottom of the mounting groove 200 is arc-shaped;

[0054] The wear-resistant part is detachably arranged in the valve core body 100, and a flow channel 210 is arranged inside the valve core body 100. The two sides of the flow channel 210 are respectively a liquid inlet and a liquid outlet.

[0055] Among them, two planes located on the same axis as the center line of the flow channel 210 are formed on the outer surface of the valve core body 100, the two planes are the first contact plane 110 and the second contact plane 120, and the two planes are symmetrically arranged on both sides of the valve core body 100, and the liquid inlet and the liquid outlet are respectively arranged on the two planes.

[0056] In some implementations of the embodiments of the present application, Figure 1 As shown, the above-mentioned wear-resistant valve core is adopted, and the wear-resistant parts are detachably arranged in the valve core body 100. The wear-resistant parts directly bear the scouring and wear of the fluid medium, and effectively protect the main structure of the valve core body 100. It is made of high-hardness, high-wear-resistant alloy or ceramic, which can significantly extend the service life of the valve core and reduce the replacement frequency and maintenance cost caused by wear. The valve core body 100 adopts a spherical design, and two planes coaxial with the center line of the flow channel 210 are formed on the outer surface. These two planes can be used as installation surfaces to contact the wear-resistant parts and provide support. At the same time, in the present application, the wear-resistant parts are a detachable structure. When the wear-resistant parts need to be replaced due to wear, there is no need to replace the valve core as a whole. Only the wear-resistant parts need to be replaced separately, which simplifies the maintenance process, reduces the difficulty and cost of maintenance, and improves the availability and economy of the equipment.

[0057] Embodiment 2:

[0058] An embodiment of the present application provides a wear-resistant valve core. In addition to the above-mentioned technical features, the wear-resistant valve core of the embodiment of the present application also includes the following technical features.

[0059] like Figures 1 to 3 As shown, the wear-resistant parts include:

[0060] The plug connector 300 includes a first mounting surface 310 and a first lining 320 disposed on the first mounting surface 310;

[0061] The fixing member 400 includes a second mounting surface 410 and a second lining 420 disposed on the second mounting surface 410;

[0062] The second liner 420 is provided with an inner ring 430 , a slot 440 is formed between the inner ring 430 and the valve core body 100 , and the first liner 320 is provided with a plug 330 adapted to the slot 440 .

[0063] In the embodiment of the present application, the design of the connector 300 and the fixing member 400 makes the wear-resistant part a detachable modular component, which not only simplifies the installation and replacement process of the wear-resistant part, but also allows the wear-resistant part to be replaced in time after being damaged, thereby improving the adaptability and flexibility of the valve core. At the same time, the first liner 320 and the second liner 420 are also provided with a wear-resistant layer, which can significantly extend the service life of the wear-resistant part and reduce the performance degradation and replacement frequency caused by wear. In addition, by providing a slot 440 on the inner ring 430 and providing a plug 330 adapted to the slot 440 on the first liner 320, a stable connection structure is formed between the connector 300 and the fixing member 400, thereby preventing the wear-resistant part from loosening or falling off. Moreover, when the wear-resistant part needs to be replaced due to wear, it is only necessary to disassemble the connection between the connector 300 and the fixing member 400, and then install the new wear-resistant part into the valve core body 100, thereby simplifying the maintenance process and reducing the maintenance cost and time.

[0064] Moreover, an annular groove 340 is provided on the plug 330 , a first sealing ring 350 is provided in the annular groove 340 , and the first sealing ring 350 contacts the outer wall of the inner ring 430 .

[0065] In some embodiments of the present application, by providing an annular groove 340 on the plug 330 and arranging a first sealing ring 350 in the annular groove 340, the first sealing ring 350 can be closely fitted on the outer wall of the inner ring 430 to form an effective sealing barrier, effectively preventing the fluid medium from leaking from the gap between the wear-resistant part and the valve core body 100, and improving the sealing performance. At the same time, the material of the first sealing ring 350 can be selected according to the properties of the fluid medium to ensure good sealing effect and corrosion resistance.

[0066] Embodiment 3:

[0067] An embodiment of the present application provides a wear-resistant valve core. In addition to the above-mentioned technical features, the wear-resistant valve core of the embodiment of the present application also includes the following technical features.

[0068] like Figures 3 to 5 As shown, the wear-resistant part is connected to the valve core body 100 via a connecting assembly 500, and the connecting assembly 500 includes:

[0069] A first connecting member 510 is disposed on the first mounting surface 310 and is used to fix the plug-in member 300 on the first contact plane 110;

[0070] A second connecting member 520 is disposed on the second mounting surface 410 and is used to fix the fixing member 400 on the second contact plane 120;

[0071] A second sealing ring 530 is disposed between the first mounting surface 310 and the first contact plane 110 , and between the second mounting surface 410 and the second contact plane 120 .

[0072] In the embodiment of the present application, the first connector 510 and the second connector 520 are respectively responsible for firmly fixing the plug-in 300 and the fixing member 400 on the first and second contact planes 120 of the valve core body 100, which can effectively ensure the stability of the wear-resistant parts under harsh working conditions such as high pressure and high flow rate, and prevent failures caused by loosening or falling off. At the same time, the second sealing ring 530 is set between the second mounting surface 410 and the first and second contact planes 120, which further enhances the sealing effect between the wear-resistant parts and the valve core body 100. The sealing ring can fit tightly on the contact surface to form a multiple sealing barrier, effectively prevent leakage of the fluid medium, and improve the sealing performance of the valve.

[0073] Embodiment 4:

[0074] An embodiment of the present application provides a wear-resistant valve core. In addition to the above-mentioned technical features, the wear-resistant valve core of the embodiment of the present application also includes the following technical features.

[0075] like Figure 4 and Figure 5 As shown, the first connecting member 510 includes:

[0076] A first limiting groove 511 is provided on the first mounting surface 310;

[0077] A first through hole 512 is disposed in the first limiting groove 511 and passes through the first mounting surface 310;

[0078] A first threaded hole 513 is provided on the first contact plane 110;

[0079] A first fastener 514;

[0080] There are multiple first limiting grooves 511 , and the first fastener 514 passes through the first limiting grooves 511 and the first through holes 512 in sequence and then is connected to the first threaded holes 513 .

[0081] In the embodiment of the present application, a plurality of first limiting grooves 511 are provided, and a first through hole 512 is provided in the first limiting groove 511. The first fastener 514 passes through the first limiting groove 511 and the first through hole 512 in sequence and is connected to the first threaded hole 513. After installation, the first fastener 514 is located in the first limiting groove 511, and its height is not higher than the first limiting groove 511. The first limiting groove 511 has a limiting effect on the first fastener 514. At the same time, the first through hole 512, the first threaded hole 513 and the first limiting groove 511 are located on the same axis, and the first fastener 514 can be conveniently fixed on the first contact plane 110 by tightening. In addition, the provision of a plurality of first limiting grooves 511 and the first through hole 512 improves the strength of the overall connection structure.

[0082] Furthermore, the second connecting member 520 includes:

[0083] The second limiting groove 521 is disposed on the second mounting surface 410;

[0084] A second through hole 522 is disposed in the second limiting groove 521 and passes through the second mounting surface 410;

[0085] A second threaded hole 523 is disposed on the second contact plane 120;

[0086] There are multiple second limiting grooves 521 .

[0087] In some embodiments of the present application, by providing a plurality of second limiting grooves 521, and opening a second through hole 522 in the second limiting groove 521, the second fastener 524 passes through the second limiting groove 521 and the second through hole 522 in sequence and is connected to the second threaded hole 523. After installation, the second fastener 524 is located in the second limiting groove 521, and the height is not higher than the second limiting groove 521, and the second limiting groove 521 plays a limiting role for the second fastener 524. At the same time, the second through hole 522, the second threaded hole 523 and the second limiting groove 521 are located on the same axis, and the second fastener 524 can be conveniently fixed on the second contact plane 120 by tightening. In addition, the provision of a plurality of second limiting grooves 521 and the second through hole 522 improves the strength of the overall connection structure.

[0088] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0089] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A wear-resistant valve core, characterized in that: include: The valve core body (100) is spherical; A mounting groove (200) is arranged on the top of the valve body and is used to connect the valve stem, and the bottom of the mounting groove (200) is arc-shaped; The wear-resistant part is detachably arranged in the valve core body (100), and a flow channel (210) is arranged inside the valve core body, and the two sides of the flow channel (210) are respectively a liquid inlet and a liquid outlet; Among them, two planes located on the same axis as the center line of the flow channel (210) are formed on the outer surface of the valve core body (100), the two planes are a first contact plane (110) and a second contact plane (120), and the two planes are symmetrically arranged on both sides of the valve core body (100), and the liquid inlet and the liquid outlet are respectively arranged on the two planes.

2. A wear-resistant valve core according to claim 1, characterized in that: The wear-resistant parts include: A plug-in connector (300) comprises a first mounting surface (310) and a first lining (320) disposed on the first mounting surface (310); A fixing member (400) comprising a second mounting surface (410) and a second lining (420) disposed on the second mounting surface (410); The second liner (420) is provided with an inner ring (430), a slot (440) is formed between the inner ring (430) and the valve core body (100), and the first liner (320) is provided with a plug (330) adapted to the slot (440).

3. A wear-resistant valve core according to claim 2, characterized in that: The plug (330) is provided with an annular groove (340), a first sealing ring (350) is provided in the annular groove (340), and the first sealing ring (350) is in contact with the outer wall of the inner ring (430).

4. A wear-resistant valve core according to claim 3, characterized in that: The wear-resistant part is connected to the valve core body (100) via a connecting assembly (500), and the connecting assembly (500) comprises: A first connecting member (510) is disposed on the first mounting surface (310) and is used to fix the plug-in member (300) on the first contact plane (110); A second connecting member (520) is disposed on the second mounting surface (410) and is used to fix the fixing member (400) on the second contact plane (120); A second sealing ring (530) is provided between the first mounting surface (310) and the first contact plane (110), and between the second mounting surface (410) and the second contact plane (120).

5. The wear-resistant valve core according to claim 4, characterized in that: The first connecting member (510) comprises: A first limiting groove (511) is arranged on the first mounting surface (310); A first through hole (512) is disposed in the first limiting groove (511) and passes through the first mounting surface (310); A first threaded hole (513) is disposed on the first contact plane (110); a first fastener (514); There are a plurality of first limiting grooves (511), and the first fastener (514) passes through the first limiting groove (511) and the first through hole (512) in sequence and is connected to the first threaded hole (513).

6. The wear-resistant valve core according to claim 5, characterized in that: The second connecting member (520) comprises: A second limiting groove (521) is arranged on the second mounting surface (410); A second through hole (522), disposed in the second limiting groove (521) and penetrating the second mounting surface (410); A second threaded hole (523) is disposed on the second contact plane (120); Second fastener (524) There are a plurality of second limiting grooves (521), and the second fastener (524) passes through the second limiting groove (521) and the second through hole (522) in sequence and is connected to the first threaded hole.

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