Reset valve core

Abstract

The invention discloses a reset valve element, and belongs to the technical field of valve elements, the reset valve element is characterized by comprising a shell, a base, a static valve plate, a movable valve plate, a valve rod and a reset piece, the shell is connected with the base, the static valve plate is circumferentially fixed on the base, the movable valve plate is rotatably arranged on the static valve plate, and the valve rod is rotatably arranged in the shell and can drive the movable valve plate to rotate; the reset piece is used for enabling the valve rod to rotate and reset and driving the movable valve plate to reset, the valve rod of the valve element can automatically reset after rotating, the valve element is made to restore to the original state, a user does not need to manually and repeatedly adjust the state of the valve element, and then the using convenience of the valve element is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of valve cores, and in particular relates to a reset valve core. Background Art

[0002] As the core functional component of fluid control systems such as faucets and valves, valve cores are indispensable precision components in modern industry and daily life.

[0003] A Chinese patent with announcement number CN221990974U discloses a valve core and a water valve, relating to the field of valve core technology. A valve core includes a valve core body, with water outlets on both sides of the valve core body; a rotating rod rotatably sleeved in the valve core body; a movable body connected to one end of the rotating rod; a stationary body sleeved in the valve core body, the stationary body and the movable body in contact; a sealing ring that cooperates with the valve core body, the sealing ring being located at one end of the stationary body away from the movable body; and a reinforcing frame located inside the sealing ring. In the open state, the water outlet, the movable body and the stationary body are connected to each other.

[0004] The above technical solution has the following defects: the valve core drives the movable body to rotate through the rotating rod, so that the water outlet and the static body are connected or disconnected, and the valve core is opened or closed. Specifically, grooves are provided on both sides of the movable body, and two through holes are provided on the static body. When in the open state, the grooves connect the water outlet and the through holes. When in the closed state, the main body of the movable body blocks the water outlet and the through holes. Although the valve core has basic opening and closing functions, it lacks an automatic reset function, that is, the rotating rod cannot return to its initial position by itself after completing the rotation action, resulting in the user having to manually rotate the rotating rod (valve stem) repeatedly to adjust the valve core state, which is inconvenient to use. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and propose a reset valve core. The technical problem to be solved by the present invention is: how to make the valve stem of the valve core reset itself after rotation, so that the valve core returns to its original state without the need for the user to manually adjust the valve core state repeatedly, thereby improving the convenience of using the valve core.

[0006] The above technical objectives of the present invention can be achieved through the following technical solutions: a reset valve core, including an outer shell, a base, a static valve plate, a movable valve plate, a valve stem and a reset component, the outer shell is connected to the base, the static valve plate is circumferentially fixed on the base, the movable valve plate is rotatably set on the static valve plate, the valve stem is rotatably set in the outer shell and can drive the movable valve plate to rotate, and the reset component is used to rotate and reset the valve stem and drive the movable valve plate to reset.

[0007] In the above-mentioned reset valve core, the reset member includes a torsion spring, one end of the torsion spring is kept relatively stable or connected to the housing, and the other end of the torsion spring is kept relatively stable or connected to the valve stem.

[0008] In the above-mentioned reset valve core, a limiting groove 1 is provided on the outer shell, one end of the torsion spring is located in the limiting groove 1, and the limiting groove 1 is used to limit one end of the torsion spring. A limiting groove 2 is provided on the valve stem, the other end of the torsion spring is located in the limiting groove 2, and the limiting groove 2 is used to limit the other end of the torsion spring.

[0009] In the above-mentioned reset valve core, the valve core further includes a locking member, and the locking member is used to lock the valve stem.

[0010] In the above-mentioned reset valve core, a handwheel is provided at the end of the valve stem, and an avoidance hole is opened on the side wall of the handwheel. The locking member includes a pressing block and a reset spring. The pressing block is slidably passed through the avoidance hole, and the reset spring is arranged between the pressing block and the handwheel. The pressing block has a limiting part, and the sliding of the pressing block can cooperate with the handwheel to squeeze the reset spring and make the limiting part disengage from the limiting structure that limits its circumferential position.

[0011] In the above-mentioned reset valve core, the base is made of elastic material, and the base is clamped in the shell.

[0012] In the above-mentioned reset valve core, the inner side wall of the outer shell is provided with a positioning protrusion, the side wall of the base is provided with a positioning groove 1 adapted to the positioning protrusion, and the outer side wall of the static valve plate is provided with a positioning groove 2 adapted to the positioning protrusion, and the positioning protrusion is located in the positioning groove 1 and the positioning groove 2.

[0013] In the above-mentioned reset valve core, the end portion of the positioning protrusion extends to the outside of the shell to form a positioning foot eccentric to the shell.

[0014] In the above-mentioned reset valve core, two through holes are provided on the base, two flow channel holes corresponding to the two through holes are provided on the static valve plate, and a connecting groove is provided on the surface of the movable valve plate relative to the static valve plate. The connecting groove can connect the two flow channel holes, and the movable valve plate can separate the two flow channel holes.

[0015] In the above-mentioned reset valve core, at least two annular protrusions 1 are provided on the surface of the base, and the two annular protrusions 1 are respectively enclosed on the outside of the two through holes, and at least two annular protrusions 2 are provided on the surface of the base relative to the static valve plate, and the two annular protrusions 2 are respectively enclosed on the outside of the two through holes and the two flow channel holes.

[0016] In summary, the present invention has the following beneficial effects compared to the prior art: After the user rotates the valve stem, the valve stem drives the movable valve disc to rotate, thereby adjusting the state of the valve core. When the user removes the force applied to the valve stem, the reset member causes the valve stem to rotate and reset and drives the movable valve disc to reset. As the movable valve disc resets, the valve core returns to its original state. The user does not need to manually adjust the state of the valve core repeatedly, which improves the convenience of using the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment; Figure 2 A partial cross-sectional view of an embodiment; Figure 3 It is a partial structural diagram of an embodiment; Figure 4 Schematic diagram of the structure of the housing of the embodiment; Figure 5 is a cross-sectional view of the base of the embodiment; Figure 6 This is a schematic structural diagram of the static valve plate in an embodiment; Figure 7 Schematic diagram of the structure of the movable valve plate in the embodiment.

[0018] Figure numerals: 1. outer shell; 2. base; 3. static valve disc; 4. dynamic valve disc; 5. valve stem; 6. torsion spring; 7. limiting groove 1; 8. limiting groove 2; 9. locking piece; 91. pressing block; 911. limiting part; 92. reset spring; 10. handwheel; 11. avoidance hole; 12. positioning protrusion; 13. positioning groove 1; 14. positioning groove 2; 15. positioning foot; 16. through hole; 17. flow channel hole; 18. connecting groove; 19. annular protrusion 1; 20. annular protrusion 2; 21. limiting protrusion; 22. limiting protrusion; 23. linkage protrusion; 24. linkage groove; 25. pressure ring. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0020] A reset valve core, such as Figures 1 to 7 As shown, it includes a housing 1, a base 2, a static valve disc 3, a movable valve disc 4, a valve stem 5 and a reset member.

[0021] The shell 1 is connected to the base 2. In this embodiment, the base 2 is made of a soft material that can be elastically deformed. The base 2 is snapped into the shell 1. Preferably, the base 2 is made of rubber or silicone. Through the elastic properties of the material, the base 2 and the shell 1 have an interference fit, and the assembly connection can be quickly completed, which can effectively reduce the difficulty of assembly and improve assembly efficiency.

[0022] Furthermore, in order to ensure the relative stability of the base 2 and the shell 1 and prevent the base 2 from rotating relative to the shell 1, a positioning protrusion 12 is provided on the inner side wall of the shell 1, and a positioning groove 13 adapted to the positioning protrusion 12 is provided on the side wall of the base 2. The positioning protrusion 12 is located in the positioning groove 13, so that the base 2 is limited by the positioning protrusion 12, thereby ensuring the relative stability of the base 2 and the shell 1, and due to the action of the positioning protrusion 12, the structural strength of the shell 1 can be effectively enhanced.

[0023] The static valve disc 3 is circumferentially fixed on the upper surface of the base 2. Specifically, the outer wall of the static valve disc 3 is provided with a positioning groove 2 14 adapted to the positioning protrusion 12. The positioning protrusion 12 is located in the positioning groove 2 14. The positioning protrusion 12 limits the static valve disc 3, thereby ensuring the relative stability of the static valve disc 3 and the outer shell 1, and further ensuring the relative stability of the static valve disc 3 and the base 2.

[0024] It should be noted that, through the relative position relationship between positioning groove 1 13 and positioning groove 2 14 and positioning protrusion 12, the relative positions of the base 2 and the static valve plate 3 and the housing 1 can be quickly determined during assembly, which can effectively reduce the assembly difficulty and improve the assembly efficiency.

[0025] Two spaced-apart through holes 16 are provided on the base 2, and two flow channel holes 17 corresponding to the two through holes 16 are provided on the static valve plate 3. At least two annular protrusions 19 are provided on the surface of the base 2, and the two annular protrusions 19 are respectively enclosed on the outside of the two through holes 16. At least two annular protrusions 20 are provided on the surface of the base 2 relative to the static valve plate 3, and the two annular protrusions 20 are respectively enclosed on the outside of the two through holes 16 and the two flow channel holes 17. It should be noted that the annular protrusion 19 and the annular protrusion 20 are both integrally formed with the base 2. In this embodiment, the annular protrusion 19 and the annular protrusion 20 are both made of rubber or silicone material. Then the annular protrusion 19 is enclosed on the outside of the through hole 16, and the annular protrusion 2 20 is enclosed on the outside of the through hole 16 and the flow channel hole 17, which can achieve sealing of the through hole 16 and sealing between the through hole 16 and the flow channel hole 17.

[0026] It should be noted that, in the existing technology, a sealing ring is usually used to seal around the hole. First, the installation of the sealing ring takes a lot of time, resulting in a decrease in production efficiency, and the sealing ring is prone to sealing failure due to position offset. In this embodiment, the annular protrusion 19 and the annular protrusion 2 20 with sealing function are directly integrated with the base 2, which eliminates the installation step of the sealing ring, can effectively improve production efficiency, and also avoids the problem of sealing failure caused by the position offset of the sealing ring, which can effectively improve the stability and reliability of the sealing structure.

[0027] The end of the positioning protrusion 12 extends to the outside of the shell 1 to form a positioning foot 15 that is eccentric to the shell 1. It should be noted that in this embodiment, there are two positioning protrusions 12 and the two are arranged opposite to each other. The positioning feet 15 correspond one-to-one to the positioning protrusions 12. The positioning feet 15 are eccentric to the shell 1. When installing the valve core, the positioning foot 15 is inserted into the positioning structure that is adapted to the installation position to achieve the positioning of the valve core, which facilitates the installation of the valve core.

[0028] The movable valve disc 4 is rotatably arranged on the static valve disc 3 . A connecting groove 18 is provided on the surface of the movable valve disc 4 opposite to the static valve disc 3 . The connecting groove 18 can connect the two flow holes 17 , and the movable valve disc 4 can separate the two flow holes 17 .

[0029] As the movable valve disc 4 rotates, when the communicating groove 18 connects the two flow channel holes 17, water flows in from one of the through holes 16, then flows into the communicating groove 18 through one of the corresponding flow channel holes 17, then flows through the other flow channel hole 17, and finally flows out from the other through hole 16, that is, the valve core is in the open state at this time; on the contrary, as the movable valve disc 4 rotates, the movable valve disc 4 blocks one of the flow channel holes 17, and at this time the water cannot enter the communicating groove 18 through the flow channel hole 17, and cannot flow to the other flow channel hole 17, that is, the two flow channel holes 17 are separated, and the valve core is in the closed state at this time.

[0030] The valve stem 5 is rotatably arranged in the outer shell 1 and can drive the movable valve disc 4 to rotate. The movable valve disc 4 has a linkage protrusion 23. The end of the valve stem 5 is provided with a linkage groove 24 that is compatible with the linkage protrusion 23. The linkage groove 24 circumferentially positions the linkage protrusion 23. The linkage protrusion 23 is inserted into the linkage groove 24, so that the valve stem 5 can drive the movable valve disc 4 to rotate.

[0031] A limiting protrusion 21 is provided on the valve stem 5, and a limiting protrusion 22 is provided in the outer shell 1. As the valve stem 5 rotates, the side wall of the limiting protrusion 21 can abut against the side wall of the limiting protrusion 22, thereby limiting the valve stem 5, and further limiting the rotation angle of the movable valve plate 4, making it convenient for users to operate and adjust the valve core state.

[0032] The reset member is used to rotate and reset the valve stem 5 and drive the valve plate 4 to reset. In this embodiment, the reset member includes a torsion spring 6, one end of the torsion spring 6 remains relatively stable or connected to the outer shell 1, and the other end of the torsion spring 6 remains relatively stable or connected to the valve stem 5. As another solution, the reset member can also use a constant force spring.

[0033] Specifically, a limiting groove 7 is provided on the outer shell 1, and one end of the torsion spring 6 is located in the limiting groove 7. The limiting groove 7 is used to limit one end of the torsion spring 6. A limiting groove 2 8 is provided on the valve stem 5, and the other end of the torsion spring 6 is located in the limiting groove 2 8. The limiting groove 2 8 is used to limit the other end of the torsion spring 6, thereby ensuring the relative stability of the torsion spring 6, the outer shell 1 and the valve stem 5.

[0034] Furthermore, a pressure ring 25 is connected to the inner thread of the housing 1 , and the lower surface of the pressure ring 25 abuts against the upper end of the torsion spring 6 , thereby limiting the torsion spring 6 and ensuring the stability of the torsion spring 6 .

[0035] It should be noted that when the user overcomes the elastic force of the torsion spring 6 by external force and rotates the valve stem 5, the valve stem 5 drives the movable valve disc 4 to rotate, thereby adjusting the state of the valve core. When the user removes the force applied to the valve stem 5, under the action of the elastic restoring force of the torsion spring 6, the valve stem 5 rotates and resets and drives the movable valve disc 4 to rotate and reset, so that the valve core returns to its original state. That is, the user does not need to manually adjust the state of the valve core repeatedly, which improves the convenience of using the valve core.

[0036] The valve core also includes a locking member 9, which is used to lock the valve stem 5. The valve stem 5 is locked by the locking member 9 to avoid user misoperation and ensure the stability of the valve core.

[0037] A handwheel 10 is provided at the end of the valve stem 5, and an avoidance hole 11 is opened on the side wall of the handwheel 10. The locking member 9 includes a pressing block 91 and a return spring 92. The pressing block 91 is slidably passed through the avoidance hole 11, and the return spring 92 is arranged between the pressing block 91 and the handwheel 10. The pressing block 91 has a limiting portion 911. The sliding of the pressing block 91 can cooperate with the handwheel 10 to squeeze the return spring 92, and make the limiting portion 911 disengage from the limiting structure that limits its circumferential position.

[0038] It should be noted that, in the locked state, the limiting portion 911 of the pressing block 91 is located in the corresponding limiting structure, and the limiting structure is adapted to the limiting portion 911. The limiting structure limits the limiting portion 911, thereby limiting the rotation of the pressing block 91, and further limiting the rotation of the handwheel 10. It should be noted that the limiting structure can be a limiting groove on the faucet body.

[0039] When the handwheel 10 needs to be rotated, it is first necessary to use external force to overcome the force of the return spring 92 to press the pressing block 91, so that the limiting part 911 on the pressing block 91 disengages from the limiting structure. Since the pressing block 91 can rotate normally with the handwheel 10 at this time, the handwheel 10 can be rotated normally at this time, and the user can operate it.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention; those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A reset valve core, characterized in that: The invention comprises a housing (1), a base (2), a static valve disc (3), a movable valve disc (4), a valve stem (5) and a reset member, wherein the housing (1) is connected to the base (2), the static valve disc (3) is circumferentially fixed on the base (2), the movable valve disc (4) is rotatably arranged on the static valve disc (3), the valve stem (5) is rotatably arranged in the housing (1) and can drive the movable valve disc (4) to rotate, and the reset member is used to rotate and reset the valve stem (5) and drive the movable valve disc (4) to reset.

2. A reset valve core according to claim 1, characterized in that: The reset member comprises a torsion spring (6), one end of the torsion spring (6) is kept relatively stable or connected to the housing (1), and the other end of the torsion spring (6) is kept relatively stable or connected to the valve stem (5).

3. The reset valve core according to claim 2, characterized in that: A limiting groove (7) is provided on the housing (1), one end of the torsion spring (6) is located in the limiting groove (7), and the limiting groove (7) is used to limit one end of the torsion spring (6). A limiting groove (8) is provided on the valve stem (5), the other end of the torsion spring (6) is located in the limiting groove (8), and the limiting groove (8) is used to limit the other end of the torsion spring (6).

4. A reset valve core according to any one of claims 1, 2 or 3, characterized in that: The valve core also includes a locking member (9), and the locking member (9) is used to lock the valve stem (5).

5. The reset valve core according to claim 4, characterized in that: A handwheel (10) is provided at the end of the valve stem (5), and an avoidance hole (11) is opened on the side wall of the handwheel (10). The locking member (9) includes a pressing block (91) and a return spring (92). The pressing block (91) is slidably passed through the avoidance hole (11), and the return spring (92) is arranged between the pressing block (91) and the handwheel (10). The pressing block (91) has a limiting portion (911). The pressing block (91) can slide to cooperate with the handwheel (10) to squeeze the return spring (92) and make the limiting portion (911) disengage from the limiting structure that limits its circumference.

6. A reset valve core according to any one of claims 1, 2 or 3, characterized in that: The base (2) is made of elastic material, and the base (2) is snap-connected in the housing (1).

7. A reset valve core according to any one of claims 1, 2 or 3, characterized in that: The inner side wall of the housing (1) is provided with a positioning protrusion (12), the side wall of the base (2) is provided with a positioning groove 1 (13) adapted to the positioning protrusion (12), the outer side wall of the static valve plate (3) is provided with a positioning groove 2 (14) adapted to the positioning protrusion (12), and the positioning protrusion (12) is located in the positioning groove 1 (13) and the positioning groove 2 (14).

8. The reset valve core according to claim 7, characterized in that: The end of the positioning protrusion (12) extends to the outside of the housing (1) to form a positioning foot (15) eccentric to the housing (1).

9. The reset valve core according to claim 6, characterized in that: The base (2) is provided with two through holes (16), the static valve plate (3) is provided with two flow channel holes (17) corresponding to the two through holes (16), and the movable valve plate (4) is provided with a connecting groove (18) on the surface opposite to the static valve plate (3). The connecting groove (18) can connect the two flow channel holes (17), and the movable valve plate (4) can separate the two flow channel holes (17).

10. The reset valve core according to claim 9, characterized in that: At least two annular protrusions (19) are provided on the surface of the base (2), and the two annular protrusions (19) are respectively enclosed on the outside of the two through holes (16). At least two annular protrusions (20) are provided on the surface of the base (2) relative to the static valve plate (3), and the two annular protrusions (20) are respectively enclosed on the outside of the two through holes (16) and the two flow channel holes (17).

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