A ceramic valve spool

Abstract

The utility model discloses a kind of ceramic valve valve core, belong to valve technical field.The valve core includes upper core sleeve, lower core sleeve and valve piece assembly, valve piece assembly is located between upper core sleeve and lower core sleeve.Upper core sleeve is sequentially for sealing section, positioning section, hand feeling section and handle connecting section from top to bottom, the connecting thread outer circle of hand feeling section is equipped with several first "V" type groove, and handle connecting section outer periphery is equipped with several second "V type groove, and first "V" type groove and second "V" type groove are arranged in parallel to the axis direction of upper core sleeve collinear arrangement.The ceramic valve valve core is inlaid with handle connecting ring inner wall protrusion through second "V" type groove, improves the connection stability and dismounting convenience;First "V" type groove is matched with adaptive nut, and the operation hand feeling feedback is enhanced;Two groups of "V" type groove collinear can be once processed and shaped, simplify the technology, reduce production cost, with higher practical value.

Description

Technical Field

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

[0002] In the field of fluid control (such as basin faucets), ceramic valves are widely used in systems for conveying media such as water, gas, and corrosive fluids due to their excellent wear resistance, corrosion resistance, and sealing performance. The valve core, as the core component of a ceramic valve, directly affects the valve's opening and closing performance, operating feel, and service life.

[0003] Currently, common ceramic valve cores typically consist of an upper core sleeve, a lower core sleeve, and a valve disc assembly sandwiched between them. The upper core sleeve connects to a handle, enabling the rotation of the valve core and thus controlling the on / off state of the valve disc assembly. However, existing technologies present several problems that urgently need to be addressed:

[0004] Firstly, the connection structure between the upper sleeve and the handle is unreasonable. Traditional connection methods often use a single threaded fit or pin fixation. Threaded connections are prone to loosening after long-term use, while pin fixation makes disassembly and assembly difficult and is not conducive to later maintenance. Some use a structure with a protrusion and groove fit. Due to the scattered design or irregular shape of the grooves, there are often problems with poor connection stability and uneven force distribution, which affects the reliability of operation.

[0005] Secondly, the valve operation feedback is poor. The mating part between the upper core sleeve and the adapter nut usually uses a common thread structure. During rotation, the friction between the threads changes gradually, making it difficult to form a clear sense of gear position or operation feedback.

[0006] Third, the processing technology is complex. The functional grooves on the upper core sleeve (such as grooves used to enhance the connection or improve the feel) often need to be processed in steps. The processing of different grooves requires secondary tool setting or rotational adjustment, which not only increases the complexity of the mold structure, but also reduces production efficiency and increases manufacturing costs.

[0007] Therefore, developing a ceramic valve core structure that can optimize connection stability, improve operating feel, and simplify processing has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] To address the shortcomings in the prior art, this utility model provides a ceramic valve core.

[0009] The technical solution adopted by this utility model is: a ceramic valve core, including an upper core sleeve, a lower core sleeve, and a valve plate assembly. The valve plate assembly is disposed between the upper core sleeve and the lower core sleeve. The upper core sleeve includes, from top to bottom, a sealing section, a positioning section, a tactile section, and a handle connecting section. The tactile section is provided with a connecting thread. The outer ring of the connecting thread is provided with a plurality of first "V" shaped grooves at intervals. The outer circumference of the connecting section is provided with a plurality of second "V" shaped grooves at intervals. The first "V" shaped grooves and the second "V" shaped grooves are arranged collinearly in a direction parallel to the axis of the upper core sleeve.

[0010] Furthermore, the sealing section is provided with two sealing grooves, and a sealing ring is provided in the sealing groove.

[0011] Furthermore, a retaining ring is provided on the positioning section, and a positioning hole is provided on one side of the retaining ring.

[0012] Furthermore, the upper end of the lower core sleeve is a hexagonal nut end, and a fixing thread is provided on the outer wall of the lower core sleeve located below the hexagonal nut end. A sealing gasket is provided at the lower end of the lower core sleeve, and several annular concave surfaces are provided on the bottom end face of the sealing gasket.

[0013] Furthermore, the valve plate assembly includes a moving valve plate and a fixed valve plate. The fixed valve plate has fixed steps on both sides, and the inner wall of the lower core sleeve has a fixed groove that fits into the fixed steps. The moving valve plate has fitting grooves on both sides, and the lower end of the upper core sleeve has a fitting protrusion that matches the fitting grooves.

[0014] Furthermore, the moving valve plate is provided with limit grooves on both sides, and the inner wall of the lower core sleeve is provided with limit protrusions that are adapted to the limit grooves, and the limit protrusions slide in conjunction with the limit grooves.

[0015] The beneficial effects of this utility model are:

[0016] First, it improves the stability and ease of assembly / disassembly of the connection between the upper sleeve and the handle. The second "V"-shaped groove on the outer periphery of the connecting section can form a mating connection with the protruding part of the inner wall of the handle connecting ring. This concave-convex fit ensures stable and reliable force transmission during operation. At the same time, this concave-convex fit connection does not require additional fasteners, and the assembly / disassembly process does not require professional tools, greatly simplifying the maintenance process and reducing later maintenance costs.

[0017] Second, the tactile feedback of valve operation has been enhanced. A first "V" groove has been added to the outer ring of the connecting thread on the tactile section, forming a special tactile thread structure. When rotated with the matching nut, the contact point between the "V" groove and the inner wall of the nut will generate regular changes in friction, allowing the operator to clearly perceive the gear shift.

[0018] Third, it simplifies the processing technology and reduces production costs. The first and second "V"-shaped grooves are arranged collinearly in a direction parallel to the axis of the upper core sleeve, allowing both sets of grooves to be formed in one step during the same axial core pulling or rolling process. This design eliminates the steps of secondary tool setting and rotary station adjustment in traditional processing, which not only simplifies the mold structure and reduces equipment debugging time, but also reduces the risk of errors caused by multiple processing steps, greatly improving production efficiency and making it suitable for large-scale mass production.

[0019] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 This is a schematic diagram of the lower core sleeve.

[0024] Figure 4 This is a schematic diagram of the upper core sleeve.

[0025] Figure 5 This is a front view diagram of the upper core sleeve.

[0026] Figure 6 A schematic diagram of the structure for adapting the nut and handle connecting ring.

[0027] Figure 1-6 In the middle section: 1. Upper core sleeve; 2. Lower core sleeve; 3. Sealing section; 4. Positioning section; 5. Hand feel section; 6. Handle connection section; 7. First "V" groove; 8. Second "V" groove; 9. Sealing groove; 10. Sealing ring; 11. Snap ring; 12. Positioning hole; 13. Hexagonal nut end; 14. Fixing thread; 15. Sealing gasket; 16. Annular concave surface; 17. Moving valve plate; 18. Fixed valve plate; 19. Fixing step; 20. Fixing groove; 21. Fitting groove; 22. Fitting protrusion; 23. Limiting groove; 24. Limiting protrusion; 25. Connecting thread. Detailed Implementation

[0028] 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.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] This utility model provides a ceramic valve core.

[0031] In this embodiment, refer to Figure 1-6 The ceramic valve core includes an upper core sleeve 1, a lower core sleeve 2, and a valve plate assembly. The valve plate assembly is disposed between the upper core sleeve and the lower core sleeve. The upper core sleeve includes, from top to bottom, a sealing section 3, a positioning section 4, a tactile section 5, and a handle connecting section 6. The tactile section is provided with a connecting thread 25. The outer ring of the connecting thread is provided with a plurality of first "V" shaped grooves 7 at intervals. The outer circumference of the connecting section is provided with a plurality of second "V" shaped grooves 8 at intervals. The first "V" shaped grooves 7 and the second "V" shaped grooves 8 are arranged collinearly in a direction parallel to the axis of the upper core sleeve.

[0032] In the above technical solution, the upper core sleeve is designed in the order of sealing section, positioning section, tactile section, and handle connection section, realizing functional integration by partitioning. The outer ring of the connecting thread of the tactile section has a first "V" groove, and the outer circumference of the handle connection section has a second "V" groove, and the two are collinear in the direction parallel to the axis of the upper core sleeve. This collinear arrangement ensures the consistency of the processing steps. The second "V" groove of the handle connection section fits into the protrusion on the inner wall of the handle connecting ring, improving the connection stability and enhancing convenience by eliminating the need for additional tools for disassembly and assembly; the first "V" groove of the tactile section mates with the matching nut, enhancing the tactile feedback through changes in friction and improving control accuracy; the two sets of collinear "V" grooves can be machined in one step, simplifying the processing technology and reducing production costs and error risks.

[0033] Specifically, the sealing section is provided with two sealing grooves 9, and a sealing ring 10 is provided in the sealing groove.

[0034] In this embodiment, the two sealing grooves on the sealing section are used to install the sealing ring. The elastic deformation characteristics of the sealing ring are used to fill the gap between the sealing section and the mating component (connecting pipe), forming a double sealing barrier and improving the sealing performance of the valve core.

[0035] Specifically, a retaining ring 11 is provided on the positioning section, and a positioning hole 12 is provided on one side of the retaining ring 11.

[0036] In this embodiment, the snap ring on the positioning section can axially fix the position of the upper core sleeve to prevent it from moving axially during operation; the positioning hole can cooperate with the external positioning component to realize the circumferential positioning of the upper core sleeve and ensure the accurate relative position of each component of the valve core.

[0037] Specifically, the upper end of the lower core sleeve is a hexagonal nut end 13, and a fixing thread 14 is provided on the outer wall of the lower core sleeve located below the hexagonal nut end. A sealing gasket 15 is provided at the lower end of the lower core sleeve, and several annular concave surfaces 16 are provided on the bottom end face of the sealing gasket 15.

[0038] In this embodiment, the hexagonal nut at the upper end of the lower core sleeve facilitates tool clamping for installation and disassembly; the fixing thread is used to securely connect the lower core sleeve to external pipes or equipment; the sealing gasket at the lower end and the annular concave surface at the bottom enhance the sealing effect.

[0039] Specifically, the valve plate assembly includes a moving valve plate 17 and a fixed valve plate 18. The fixed valve plate 17 has fixed steps 19 on both sides. The inner wall of the lower core sleeve has a fixed groove 20 that fits into the fixed steps. The moving valve plate has fitting grooves 21 on both sides. The lower end of the upper core sleeve has a fitting protrusion 22 that matches the fitting grooves.

[0040] In this embodiment, the fixed valve plate in the valve plate assembly is fixed by engaging with the fixed grooves on the inner wall of the lower core sleeve via fixed steps on both sides; the movable valve plate is adapted to the engaging protrusions at the lower end of the upper core sleeve via engaging grooves on both sides, so that the upper core sleeve can drive the movable valve plate to rotate synchronously when it rotates, thereby realizing the opening and closing of the valve. The fixing method of the fixed valve plate is stable and reliable, ensuring its positional stability during operation; the connection structure between the movable valve plate and the upper core sleeve ensures the synchronicity of their movements, improves the sensitivity and accuracy of valve opening and closing, and also facilitates the installation and replacement of the valve plate assembly.

[0041] Specifically, the moving valve plate is provided with limit grooves 23 on both sides, and the inner wall of the lower core sleeve is provided with limit protrusions 24 that are adapted to the limit grooves 23. The limit protrusions slide in conjunction with the limit grooves.

[0042] In this embodiment, the limiting grooves on both sides of the moving valve plate are slidably engaged with the limiting protrusions on the inner wall of the lower core sleeve. The limiting protrusions can move within the limiting grooves, thereby limiting the rotation angle of the moving valve plate and preventing the moving valve plate from being damaged due to excessive rotation.

[0043] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A ceramic valve core, comprising an upper core sleeve, a lower core sleeve, and a valve plate assembly, wherein the valve plate assembly is disposed between the upper core sleeve and the lower core sleeve, characterized in that: The upper core sleeve includes, from top to bottom, a sealing section, a positioning section, a tactile section, and a handle connecting section. The tactile section is provided with a connecting thread, and the outer ring of the connecting thread is provided with a plurality of first "V" shaped grooves at intervals. The outer circumference of the connecting section is provided with a plurality of second "V" shaped grooves at intervals. The first "V" shaped grooves and the second "V" shaped grooves are arranged collinearly in a direction parallel to the axis of the upper core sleeve.

2. The ceramic valve core according to claim 1, characterized in that: The sealing section is provided with two sealing grooves, and a sealing ring is provided in the sealing groove.

3. The ceramic valve core according to claim 1, characterized in that: A retaining ring is provided on the positioning section, and a positioning hole is provided on one side of the retaining ring.

4. The ceramic valve core according to claim 1, characterized in that: The upper end of the lower core sleeve is a hexagonal nut end, and a fixing thread is provided on the outer wall of the lower core sleeve located below the hexagonal nut end. A sealing gasket is provided at the lower end of the lower core sleeve, and several annular concave surfaces are provided on the bottom end face of the sealing gasket.

5. The ceramic valve core according to claim 1, characterized in that: The valve plate assembly includes a moving valve plate and a fixed valve plate. The fixed valve plate has fixed steps on both sides. The inner wall of the lower core sleeve has a fixed groove that fits into the fixed steps. The moving valve plate has fitting grooves on both sides. The lower end of the upper core sleeve has a fitting protrusion that matches the fitting grooves.

6. The ceramic valve core according to claim 5, characterized in that: The moving valve plate is provided with limit grooves on both sides, and the inner wall of the lower core sleeve is provided with limit protrusions that are adapted to the limit grooves. The limit protrusions slide in conjunction with the limit grooves.

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