Ceramic c-type ball valve plug

Abstract

The utility model provides a kind of ceramic C type ball valve valve core, it is related to ceramic C type ball valve field, and it includes: valve seat, the upside of valve seat is connected with bonnet, and the inside of bonnet is equipped with valve rod, and in the lower end of valve rod is connected with valve core, it is characterized by: the valve core includes wear layer being arranged in outer wall, and the inside of wear layer is equipped with metal layer, metal layer inside is equipped with reinforcing part, the reinforcing part includes arc reinforcing rib, and the both ends of arc reinforcing rib are connected with horizontal reinforcing rib, the upper and lower ends of valve core are provided with cross groove, and the groove bottom inside cross groove is provided with locating groove, cross groove is inserted with cross block inside, and cross block inside end is connected with locating block, while locating block outer wall is provided with insertion hole, the outer end of cross block is connected with connecting block, and the connecting block in the upper end of valve core is fixedly connected with valve rod.The utility model has strengthened the toughness of valve core structure, and has reduced manufacturing difficulty and manufacturing cost, while having the effect of convenient disassembly replacement and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of ceramic C-type ball valve technology, specifically to a ceramic C-type ball valve core. Background Technology

[0002] Ball valves, as one of the most widely used valves, have advantages such as reliable sealing, simple structure, convenient maintenance, and resistance to erosion by the medium. They open and close by rotating a ball driven by a valve stem, thus controlling the fluid. C-type ball valves, as a type of ball valve, are widely used due to their low fluid resistance, tight and reliable sealing, and advantages such as simple structure, small size, and light weight. A search of existing technology (publication number: CN217401762U) describes "a C-type ball valve with a ceramic-reinforced structure. Its structure includes a ceramic sealing pair between a C-type valve core and a valve seat within the valve body. The ceramic sealing pair consists of a ceramic spherical crown on the convex surface of the C-type valve core and a ceramic bushing on the valve seat. The ceramic bushing is formed by a closed loop with an arc cross-section, and its curvature matches the contour of the convex surface of the ceramic spherical crown. The ceramic spherical crown and the C-type valve core, and the ceramic bushing and the valve seat, are all joined by a heat-fitting process or an adhesive bonding process. This ceramic-reinforced C-type ball valve has the characteristics of corrosion resistance, wear resistance, long-lasting and tight sealing, and is not prone to scaling and clogging."

[0003] While the C-type ball valve mentioned in the aforementioned patent documents achieves corrosion resistance, wear resistance, and is not prone to scaling when in use, it still needs to be replaced or disassembled for cleaning after prolonged use. In contrast, the C-type ball valve cores in existing technologies are generally threaded connections, which are prone to corrosion and disassembly due to long-term exposure to special environments. Furthermore, the zirconia ceramic valve cores are brittle, difficult to process, and have high manufacturing costs, making them unsuitable for widespread use. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a ceramic C-type ball valve core is provided to solve the problems mentioned in the background.

[0005] To achieve the above objectives, a ceramic C-type ball valve core is provided, comprising: a valve seat, a valve cover connected to the upper side of the valve seat, a valve stem disposed inside the valve cover, and a valve core connected to the lower end of the valve stem. The valve core is characterized in that: the valve core includes a wear-resistant layer on its outer wall, and a metal layer on the inner side of the wear-resistant layer; a reinforcing member is disposed inside the metal layer; the reinforcing member includes an arc-shaped reinforcing rib, and horizontal reinforcing ribs are connected to both ends of the arc-shaped reinforcing rib; a cross groove is formed at the upper and lower ends of the valve core, and a positioning groove is formed at the bottom of the groove inside the cross groove. A cross block is inserted into the inside of the groove. A positioning block is connected to the inner end of the cross block. At the same time, an insertion hole is opened on the outer wall of the positioning block. A connecting block is connected to the outer end of the cross block. The connecting block located at the upper end of the valve core is fixedly connected to the valve stem. At the same time, the connecting block located at the lower end of the valve core is rotatably connected to the limiting groove at the bottom of the valve seat cavity. A snap-fit ​​assembly is provided on the outer side of the positioning groove. The snap-fit ​​assembly includes a first toothed plate and a second toothed plate. Gears mesh between the first toothed plate and the second toothed plate. The inner end of the second toothed plate is inserted into the corresponding insertion hole.

[0006] Furthermore, the valve core is designed as a C-shaped structure, and the wear-resistant layer is made of zirconia ceramic.

[0007] Furthermore, the arc-shaped reinforcing ribs are arranged in multiple sets at equal intervals inside the metal layer, and both the arc-shaped reinforcing ribs and the horizontal reinforcing ribs are made of spring steel.

[0008] Furthermore, the positioning groove is designed as a circular groove structure, and the positioning block is designed as a cylindrical structure.

[0009] Furthermore, the metal layer has a first guide groove and a second guide groove inside, and the first toothed plate is slidably connected inside the first guide groove, and the second toothed plate is slidably connected inside the second guide groove.

[0010] Furthermore, the gear has a cavity on its outer side, and both the first guide groove and the second guide groove are connected to the cavity.

[0011] Furthermore, the outer end of the first toothed plate is connected to a protrusion, which is placed on the outside of the wear-resistant layer. At the same time, the outer end of the gear is provided with an elastic element, which is located inside the second guide groove.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The ceramic wear-resistant layer on the outside of the valve core achieves the anti-wear effect. The metal layer and the arc-shaped and horizontal reinforcing ribs inside the metal layer, made of spring steel, enhance the structural toughness of the valve core, maintain its stability, improve sealing performance, and extend its service life. In addition, the metal layer and reinforcing rib structure is simple, reducing manufacturing difficulty and cost, and facilitating widespread use.

[0014] 2. When disassembling the valve core, first remove the valve cover from the valve seat, and then remove the entire valve core from the valve seat. At this time, press the protrusion to push the first toothed plate to move, and then push the second toothed plate outward through the gear, so that the second toothed plate moves out of the insertion hole, thereby releasing the positioning block, and thus removing the upper connecting block, cross block and positioning block. Similarly, press the lower protrusion to disassemble the lower connecting block, which makes it easier to disassemble the valve core independently, avoiding the disassembly trouble caused by thread corrosion, and thus achieving the effect of easy disassembly, cleaning or replacement. Attached Figure Description

[0015] Figure 1 This is a schematic cross-sectional view of the ball valve according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve core according to an embodiment of the present utility model.

[0017] Figure 3 This is an embodiment of the present utility model. Figure 2 Schematic diagram of the structure at point A in the middle.

[0018] Figure 4 This is a schematic diagram of the reinforcing member structure in an embodiment of the present utility model.

[0019] Figure 5 This is a top view of the cross groove structure of an embodiment of the present invention.

[0020] In the diagram: 1. Valve seat; 2. Valve cover; 3. Valve stem; 4. Valve core; 41. Wear-resistant layer; 42. Metal layer; 43. Reinforcing member; 431. Arc-shaped reinforcing rib; 432. Horizontal reinforcing rib; 44. Connecting block; 45. Cross block; 46. Positioning block; 47. Snap-fit ​​assembly; 471. First toothed plate; 472. First guide groove; 473. Gear; 474. Second toothed plate; 475. Second guide groove; 476. Elastic member; 48. Cross groove; 481. Positioning groove; 482. Insertion hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1 to 5As shown, this utility model provides a ceramic C-type ball valve core, including: a valve seat 1, a valve cover 2 connected to the upper side of the valve seat 1, and a valve stem 3 provided inside the valve cover 2, and a valve core 4 connected to the lower end of the valve stem 3. The valve core 4 includes a wear-resistant layer 41 on the outer wall, and a metal layer 42 provided inside the wear-resistant layer 41. A reinforcing member 43 is provided inside the metal layer 42. The reinforcing member 43 includes an arc-shaped reinforcing rib 431, and horizontal reinforcing ribs 432 are connected to both ends of the arc-shaped reinforcing rib 431. A cross groove 48 is opened at the upper and lower ends of the valve core 4, and a positioning groove 481 is opened at the bottom of the groove inside the cross groove 48. A cross groove 48 is inserted into the interior of the cross groove 48. The inner end of the cross block 45 is connected to the positioning block 46, and the outer wall of the positioning block 46 is provided with the insertion hole 482. The outer end of the cross block 45 is connected to the connecting block 44, and the connecting block 44 located at the upper end of the valve core 4 is fixedly connected to the valve stem 3. At the same time, the connecting block 44 located at the lower end of the valve core 4 is rotatably connected to the limiting groove at the bottom of the inner cavity of the valve seat 1. The outer side of the positioning groove 481 is provided with the snap-fit ​​assembly 47, which includes a first toothed plate 471 and a second toothed plate 474. A gear 473 meshes between the first toothed plate 471 and the second toothed plate 474, and the inner end of the second toothed plate 474 is correspondingly inserted into the insertion hole 482.

[0023] In this embodiment, the valve seat 1 is provided with a sealing element that cooperates with the valve core 4 to achieve a sealing effect, and the valve cover 2 cooperates with the valve stem 3 to achieve a sealing effect.

[0024] Specifically, the valve core 4 does not include the connecting block 44 connecting the upper and lower ends. The upper connecting block 44 is fixedly connected to the valve stem 3 to form an integral structure, while the lower connecting block 44 can be independently disassembled through the snap-fit ​​assembly 47.

[0025] like Figures 2 to 5 In the design, the valve core 4 is designed as a C-shaped structure, and the wear-resistant layer 41 is made of zirconia ceramic. Multiple sets of arc-shaped reinforcing ribs 431 are arranged at equal intervals inside the metal layer 42. Both the arc-shaped reinforcing ribs 431 and the horizontal reinforcing ribs 432 are made of spring steel. The positioning groove 481 is a circular groove structure, and the positioning block 46 is a cylindrical structure. The metal layer 42 has a first guide groove 472 and a second guide groove 475. The first toothed plate 471 is slidably connected inside the first guide groove 472, and the second toothed plate 474 is slidably connected inside the second guide groove 475. The gear 473 has a cavity on its outer side, and both the first guide groove 472 and the second guide groove 475 are connected to the cavity. The outer end of the first toothed plate 471 is connected to a protrusion, which is placed on the outer side of the wear-resistant layer 41. At the same time, the outer end of the gear 473 is provided with an elastic element 476, which is located inside the second guide groove 475.

[0026] Specifically, the metal layer 42 has an installation cavity on its inner side, and one side of the installation cavity extends to the arc-shaped sidewall of the valve core 4, which facilitates the placement of the reinforcing member 43 inside, and then welding and sealing it through the sealing plate.

[0027] Secondly, the installed reinforcing member 43 fits tightly against the inner wall of the mounting cavity, and the sealing plate, after welding, limits the horizontal reinforcing ribs 432 included in the reinforcing member 43.

[0028] As another preferred embodiment, by creating an installation cavity inside the valve core 4, the cost of the metal layer 42 material is reduced, and the weight of the valve core 4 is also reduced, making it easier to manually drive the valve stem 3 to rotate the valve core 4.

[0029] Specifically, the first toothed plate 471 and the second toothed plate 474 have teeth on opposite sides, and the teeth mesh with the gear 473 for transmission.

[0030] Specifically, the second guide groove 475 extends into the positioning groove 481 and corresponds to the position of the insertion hole 482. That is, during the installation of the positioning block 46, the insertion hole 482 needs to be kept facing the side of the second guide groove 475.

[0031] In use, the ceramic wear-resistant layer on the outer side of the valve core achieves wear resistance. The addition of a metal layer, along with internal reinforcements including arc-shaped and horizontal reinforcing ribs made of spring steel, enhances the structural toughness of the valve core, maintaining its stability, improving sealing performance, and extending its service life. Furthermore, the simple structure of the metal layer and reinforcing ribs reduces manufacturing difficulty and cost, facilitating widespread application. To disassemble the valve core, first remove the valve cover from the valve seat, then remove the entire valve core from the seat. Pressing the protrusion pushes the first toothed plate, which in turn drives the second toothed plate outward through the gears, dislodging it from the insertion hole. This releases the positioning block, allowing the upper connecting block, cross block, and positioning block to be removed. Similarly, pressing the lower protrusion disassembles the lower connecting block, facilitating independent disassembly of the valve core and avoiding the difficulties caused by thread corrosion. This facilitates easy disassembly, cleaning, and replacement.

[0032] The ceramic C-type ball valve core of this utility model can effectively solve the problems mentioned in the background technology. It achieves enhanced valve core structural toughness and reduced manufacturing difficulty and cost based on the existing ceramic C-type ball valve core technology, while also being easy to disassemble, replace and clean.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ceramic C-type ball valve core, comprising: A valve seat (1) is provided with a valve cover (2) connected to the upper side of the valve seat (1), and a valve stem (3) is provided inside the valve cover (2), and a valve core (4) is connected to the lower end of the valve stem (3). The valve core (4) is characterized in that: the valve core (4) includes a wear-resistant layer (41) provided on the outer wall, and a metal layer (42) is provided on the inner side of the wear-resistant layer (41), and a reinforcing member (43) is provided inside the metal layer (42). The reinforcing member (43) includes an arc-shaped reinforcing rib (431), and horizontal reinforcing ribs (432) are connected to both ends of the arc-shaped reinforcing rib (431). The valve core (4) has a cross groove (48) at the upper and lower ends, and a positioning groove (481) is provided at the bottom of the groove inside the cross groove (48). A cross block (45) is inserted into the cross groove (48). 45) A positioning block (46) is connected to the inner end, and a plug hole (482) is opened on the outer wall of the positioning block (46). A connecting block (44) is connected to the outer end of the cross block (45), and the connecting block (44) located at the upper end of the valve core (4) is fixedly connected to the valve stem (3). At the same time, the connecting block (44) located at the lower end of the valve core (4) is rotatably connected to the limiting groove at the bottom of the inner cavity of the valve seat (1). A snap-fit ​​assembly (47) is provided on the outer side of the positioning groove (481). The snap-fit ​​assembly (47) includes a first toothed plate (471) and a second toothed plate (474). A gear (473) meshes between the first toothed plate (471) and the second toothed plate (474). The inner end of the second toothed plate (474) is plugged into the plug hole (482).

2. The ceramic C-type ball valve core according to claim 1, characterized in that, The valve core (4) is designed as a C-shaped structure, and the wear-resistant layer (41) is made of zirconium oxide ceramic.

3. The ceramic C-type ball valve core according to claim 1, characterized in that, The arc-shaped reinforcing ribs (431) are provided in multiple sets of equidistant arrangement inside the metal layer (42), and both the arc-shaped reinforcing ribs (431) and the horizontal reinforcing ribs (432) are made of spring steel.

4. The ceramic C-type ball valve core according to claim 1, characterized in that, The positioning groove (481) is a circular groove structure, and the positioning block (46) is a cylindrical structure.

5. The ceramic C-type ball valve core according to claim 1, characterized in that, The metal layer (42) has a first guide groove (472) and a second guide groove (475) inside, and the first toothed plate (471) is slidably connected inside the first guide groove (472), and the second toothed plate (474) is slidably connected inside the second guide groove (475).

6. The ceramic C-type ball valve core according to claim 1, characterized in that, The gear (473) has a cavity on its outer side, and the first guide groove (472) and the second guide groove (475) are both connected to the cavity.

7. The ceramic C-type ball valve core according to claim 1, characterized in that, The outer end of the first toothed plate (471) is connected to a protrusion, which is placed on the outside of the wear-resistant layer (41). Meanwhile, the outer end of the gear (473) is provided with an elastic element (476), and the elastic element (476) is located inside the second guide groove (475).

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