Ceramic valve element

Abstract

The ceramic valve element comprises a shell, a valve rod, a ceramic movable piece, a ceramic static piece and a bottom cover are sequentially installed on the inner side of the shell, a first O-shaped waterproof rubber ring installation groove is formed in the outer side of the upper portion of the shell, and a second O-shaped waterproof rubber ring is arranged on the outer side of the lower portion of the valve rod in a sleeved mode. The second O-shaped waterproof rubber ring is arranged below the first O-shaped waterproof rubber ring mounting groove, a step is arranged on the outer side of the lower portion of the valve rod, a platform allowing the step to abut against is arranged on the inner side of the middle of the shell, the first O-shaped waterproof rubber ring mounting groove is provided with a first O-shaped waterproof rubber ring, and a limiting lug is arranged on the outer side of the upper portion of the valve rod. Limiting grooves corresponding to the limiting lugs are formed in the inner side of the upper portion of the shell. The ceramic valve element shell is simple in structure, residual water cannot be accumulated on the inner side of the side wall, where the waterproof rubber ring is installed, of the ceramic valve element shell, the shell is prevented from being corroded and fractured, the waterproof performance is good, installation of different hand wheels is facilitated, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a ceramic valve core. Background Art

[0002] The valve core is a valve part that the valve body uses to achieve the basic functions of direction control, pressure control or flow control by moving. Ceramic valve core is a type of valve core, which is widely used in the water inlet and outlet control process of bathroom products. In order to ensure waterproofness during installation, the shell of the existing ceramic valve core is generally provided with a waterproof rubber ring. In order to ensure waterproof water control, the valve stem of the ceramic valve core is also generally provided with a waterproof rubber ring. However, the side wall of the existing ceramic valve core shell where the waterproof rubber ring is installed is generally thin, and the waterproof rubber ring on the outside of the valve stem is arranged above the side wall where the waterproof rubber ring is installed in the ceramic valve core shell. For example, the structurally improved ceramic valve core disclosed in the utility model patent with publication number CN201920185432.2, when in use, the residual water in the ceramic valve core is easy to accumulate on the inner side of the side wall where the waterproof rubber ring is installed in the ceramic valve core shell and corrode. After long-term use, it will be broken due to the rotation and extrusion of the valve stem, affecting the normal use of the ceramic valve core and the use effect is poor. Therefore, in order to avoid the shortcomings existing in the prior art, it is necessary to improve the prior art. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a ceramic valve core that is simple in structure, stable and durable.

[0004] The utility model is realized through the following technical solutions:

[0005] A ceramic valve core includes an outer shell, on the inner side of which a valve stem, a ceramic moving plate, a ceramic static plate and a bottom cover are sequentially mounted. A first O-ring mounting groove is provided on the outer side of the upper portion of the outer shell, and a second O-ring is sleeved on the outer side of the lower portion of the valve stem. The second O-ring is arranged below the first O-ring mounting groove.

[0006] Furthermore, a step is provided on the outer side of the lower portion of the valve stem, and a platform for the step to abut against is provided on the inner side of the middle portion of the shell.

[0007] Furthermore, a first O-shaped waterproof rubber ring is installed in the first O-shaped waterproof rubber ring installation groove.

[0008] Furthermore, a second O-shaped waterproof rubber ring installation groove for installing the second O-shaped waterproof rubber ring is provided on the outer side of the lower portion of the valve stem.

[0009] Furthermore, a limiting ear is provided on the outer side of the upper portion of the valve stem, and a limiting groove corresponding to the limiting ear is provided on the inner side of the upper portion of the shell.

[0010] Further, the bottom of the valve rod is provided with a connecting block, and the top of the ceramic moving sheet is provided with a connecting groove corresponding to the connecting block.

[0011] Further, the outer side of the ceramic static sheet is provided with a longitudinal positioning installation strip, and the inner side of the lower part of the shell is provided with a positioning installation groove corresponding to the positioning installation strip.

[0012] Further, the middle part of the shell is provided with a water inlet, and the outer side of the ceramic moving sheet is provided with a water inlet groove corresponding to the water inlet.

[0013] Further, the ceramic static sheet is provided with a water inlet hole corresponding to the water inlet groove.

[0014] Further, the inner side of the bottom cover is provided with a plurality of water passing channels.

[0015] With respect to the prior art, the second O-shaped waterproof rubber ring is arranged below the first O-shaped waterproof rubber ring mounting groove, so that the residual water in the ceramic valve core cannot accumulate in the inner side of the side wall of the waterproof rubber ring mounting groove of the ceramic valve core shell, and the shell cannot be corroded, and the phenomenon of fracture caused by rotation and extrusion of the valve rod after long-term use is avoided, the normal use of the ceramic valve core is ensured, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] 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 of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a structure schematic view of the ceramic valve core with one limiting lug.

[0018] Figure 2 It is an exploded view of the structure of the ceramic valve core with one limiting lug.

[0019] Figure 3 It is a longitudinal section structure schematic view of the ceramic valve core with one limiting lug.

[0020] Figure 4 It is a structure schematic view of the shell of the ceramic valve core with one limiting lug.

[0021] Figure 5 It is a structure schematic view of the ceramic valve core with two limiting lugs.

[0022] Figure 6 It is an exploded view of the structure of the ceramic valve core with two limiting lugs.

[0023] Figure 7 The longitudinal section structure schematic diagram of the ceramic valve core with two limiting ears of the utility model is shown in the figure.

[0024] Figure 8 The structure schematic diagram of the shell when the ceramic valve core has two limiting ears is shown in the figure.

[0025] In the figure: 1 - shell; 2 - valve stem; 3 - ceramic moving piece; 4 - ceramic static piece; 5 - bottom cover; 6 - first O-shaped waterproof rubber ring installation groove; 7 - second O-shaped waterproof rubber ring; 8 - step; 9 - platform; 10 - first O-shaped waterproof rubber ring; 11 - second O-shaped waterproof rubber ring installation groove; 12 - limiting ear; 13 - limiting groove; 14 - connecting block; 15 - connecting groove; 16 - positioning installation strip; 17 - positioning installation groove; 18 - water inlet; 19 - water inlet groove; 20 - water inlet hole; 21 - water passage. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] As Figures 1 to 8 shown, the utility model relates to a ceramic valve core, which comprises a shell 1, the inside of the shell 1 is sequentially provided with a valve stem 2, a ceramic moving piece 3, a ceramic static piece 4 and a bottom cover 5, the outside of the upper portion of the shell 1 is provided with a first O-shaped waterproof rubber ring installation groove 6, the outside of the lower portion of the valve stem 2 is provided with a second O-shaped waterproof rubber ring 7, and the second O-shaped waterproof rubber ring 7 is arranged below the first O-shaped waterproof rubber ring installation groove 6. By arranging the second O-shaped waterproof rubber ring 7 below the first O-shaped waterproof rubber ring installation groove 6, residual water in the ceramic valve core cannot accumulate in the inside of the side wall of the waterproof rubber ring installation position of the ceramic valve core shell, so that the shell is not corroded, and the waterproof rubber ring will not be broken due to the rotation and extrusion of the valve stem after long-term use, so that the normal use of the ceramic valve core is ensured, the waterproof performance is good, and the use effect is good.

[0028] The outside of the lower portion of the valve stem 2 is provided with a step 8, and the inside of the middle portion of the shell 1 is provided with a platform 9 for abutting the step 8, so that the rotation of the valve stem 2 is more smooth, and the upward movement of the valve stem 2 is prevented, thereby affecting the waterproof effect.

[0029] The first O-shaped waterproof rubber ring installation groove 6 is provided with a first O-shaped waterproof rubber ring 10.

[0030] The outer side of the lower part of the valve rod 2 is provided with a second O-shaped waterproof rubber ring mounting groove 11 for mounting the second O-shaped waterproof rubber ring 7, so that the second O-shaped waterproof rubber ring 7 is more stable and has better waterproof performance.

[0031] The outer side of the upper part of the valve rod 2 is provided with a limiting lug 12, and the inner side of the upper part of the shell 1 is provided with a limiting groove 13 corresponding to the limiting lug 12, the number of the limiting lug 12 is one or two, which is beneficial to limiting when the valve rod 2 rotates and facilitates the installation of different hand wheels.

[0032] The bottom of the valve rod 2 is provided with a connecting block 14, and the top of the ceramic moving piece 3 is provided with a connecting groove 15 corresponding to the connecting block 14, which facilitates the positioning and rotating control of the ceramic moving piece 3.

[0033] The outer side of the ceramic static piece 4 is provided with a longitudinal positioning and mounting strip 16, and the inner side of the lower part of the shell 1 is provided with a positioning and mounting groove 17 corresponding to the positioning and mounting strip 16, which facilitates the stable positioning and mounting of the ceramic static piece 4.

[0034] The middle part of the shell 1 is provided with a water inlet 18, and the outer side of the ceramic moving piece 3 is provided with a water inlet groove 19 corresponding to the water inlet 18, which facilitates smooth water inlet of the valve core.

[0035] The ceramic static piece 4 is provided with a water inlet hole 20 corresponding to the water inlet groove 19, which facilitates the opening and closing control of the water inlet.

[0036] The inner side of the bottom cover 5 is provided with a plurality of water passing channels 21, which facilitates smooth water outlet of the valve core.

[0037] The above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ceramic valve core, characterized in that: It includes an outer shell, on the inner side of which a valve stem, a ceramic moving plate, a ceramic static plate and a bottom cover are sequentially installed. A first O-shaped waterproof rubber ring installation groove is provided on the outer side of the upper part of the outer shell, and a second O-shaped waterproof rubber ring is sleeved on the outer side of the lower part of the valve stem. The second O-shaped waterproof rubber ring is arranged below the first O-shaped waterproof rubber ring installation groove.

2. The ceramic valve core according to claim 1, characterized in that: A step is provided on the outer side of the lower part of the valve stem, and a platform for the step to abut against is provided on the inner side of the middle part of the shell.

3. The ceramic valve core according to claim 1, characterized in that: The first O-shaped waterproof rubber ring installation groove is installed with a first O-shaped waterproof rubber ring.

4. The ceramic valve core according to claim 1, characterized in that: A second O-shaped waterproof rubber ring installation groove for installing the second O-shaped waterproof rubber ring is provided on the outer side of the lower part of the valve stem.

5. The ceramic valve core according to claim 1, characterized in that: A limiting ear is provided on the outer side of the upper portion of the valve stem, and a limiting groove corresponding to the limiting ear is provided on the inner side of the upper portion of the shell.

6. The ceramic valve core according to claim 1, characterized in that: A connecting block is provided at the bottom of the valve stem, and a connecting groove corresponding to the connecting block is provided at the top of the ceramic moving plate.

7. The ceramic valve core according to claim 1, characterized in that: A longitudinal positioning and mounting strip is provided on the outer side of the ceramic static piece, and a positioning and mounting groove corresponding to the positioning and mounting strip is provided on the inner side of the lower part of the shell.

8. The ceramic valve core according to claim 1, characterized in that: A water inlet is provided in the middle of the shell, and a water inlet groove corresponding to the water inlet is provided on the outer side of the ceramic moving piece.

9. The ceramic valve core according to claim 8, characterized in that: The ceramic static plate is provided with a water inlet hole corresponding to the water inlet groove.

10. The ceramic valve core according to claim 1, characterized in that: A plurality of water passages are provided on the inner side of the bottom cover.

Images