A push valve core

Abstract

The present invention discloses a push valve core, including a housing, a movable valve plate, a fixed valve plate and a button installed in the housing, and is characterized in that: a spring seat is installed in the housing, a spring is installed between the spring seat and the button, a dial is installed below the spring seat, the movable valve plate is circumferentially fixed on the dial, the button and the dial are connected by a transmission rod, the upper end of the transmission rod is connected to one side of the lower part of the button, the lower end of the transmission rod passes through the spring seat and is connected to the dial, the transmission rod is tilted, when the button is pressed, the upper end of the transmission rod moves downward, and the lower end of the transmission rod drives the dial to slide toward the fixed valve plate, so that the movable valve plate and the fixed valve plate move relative to each other, and the water outlet state is changed. The push valve core adopts a new pressing structure, the overall structure is simple, the processing and assembly are convenient, and it is not easy to get stuck when pressed.

Description

Technical Field

[0001] The invention relates to a valve core, in particular to a pressing valve core. Background Art

[0002] The existing faucets and other equipment generally control the water flow by installing a valve core. The press valve core is a commonly used water flow control device that changes the water flow state by pressing. Most of the existing press valve cores are shown in the Chinese patent with patent number 201810128083.0, which is named a press-fast opening ceramic valve core. The press part converts the axial force when pressing the button into the circumferential force of rotating the dial through a button, a rotor, and a dial, which drives the movable valve plate to rotate relative to the fixed valve plate, thereby changing the water outlet state of the valve core.

[0003] The overall structure of the pressing part of this type of push valve core is relatively complex and inconvenient to process. Mutually matching inclined surfaces need to be set on the inside of the upper shell, the lower part of the button and the rotor to convert the longitudinal pressing force into the force of the rotor's circumferential rotation. At the same time, when the inclined surfaces slide relative to each other, a large friction force will be generated. When the axis of the button, rotor, and dial is not in line with the axis of the upper shell, the push type may even get stuck, seriously affecting the feel during operation. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a push valve core, which adopts a new push structure, has a simple overall structure, and is not prone to getting stuck when pressed.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a push valve core, including a shell, a movable valve plate, a fixed valve plate and a button are installed in the shell, and its characteristics are: a spring seat is installed in the shell, a spring is installed between the spring seat and the button, a dial is installed below the spring seat, the movable valve plate is circumferentially fixed on the dial, the button and the dial are connected by a transmission rod, the upper end of the transmission rod is connected to one side of the lower part of the button, the lower end of the transmission rod passes through the spring seat and is connected to the dial, the transmission rod is tilted, and when the button is pressed, the upper end of the transmission rod moves downward, and the lower end of the transmission rod drives the dial to slide toward the side of the fixed valve plate, so that the movable valve plate and the fixed valve plate move relative to each other, thereby changing the water outlet state.

[0006] Through the above technical solution, when the button is pressed, the upper end of the transmission rod moves downward, so that the lower end of the transmission rod connected to the dial slides toward the side of the valve core, thereby moving the movable valve plate relative to the fixed valve plate, changing the water outlet state. When the button is released, the spring resets and lifts the button again, so that the upper end of the transmission rod moves upward, and the lower end of the transmission rod drives the dial and the movable valve plate to reset and return to the original state. The inclined setting of the transmission rod means that the line connecting the upper and lower ends of the transmission rod is not parallel to the pressing direction of the button (i.e., the direction of the valve core axis), and there is a certain angle between the two. By setting the inclined transmission rod to convert the downward force of the button into the lateral sliding force of the dial, the transmission structure is relatively simple, the number of parts is small, the assembly is relatively convenient, the pressing force required during operation is smaller, the pressing feel is better, and it is not easy to get stuck.

[0007] The driving rod drives the movable valve plate to slide, and the driving structure is simple, the processing is convenient, the friction is small, the operation feel is good, and there will be no jamming. The lower end of the driving rod and the dial can be connected by a pin connection, a clamping connection, a hinge connection, etc., so that the lower end of the driving rod can push or pull the dial to slide on the upper surface of the fixed valve plate.

[0008] Preferably, when the upper end of the transmission rod moves upward, the lower end of the transmission rod pulls the dial to reset.

[0009] Through the above technical solution, the transmission rod can push the dial to slide, and can also pull the dial to slide. When the button is reset under the action of the spring, it can drive the dial to automatically reset, so that the valve core returns to its original state. With this arrangement, there is no need to set an additional reset mechanism or component in the valve core to reset the dial position.

[0010] Preferably, a slot is provided on the lower surface of the dial, the lower end of the transmission rod extends into the slot through a connecting hole on the dial, and protrusions protruding outward are provided on both sides of the lower end of the transmission rod, and the protrusions are stuck in the slot.

[0011] Through the above technical solution, the transmission rod is stuck in the slot. When the transmission rod moves upward, it can drive the dial to move toward the center of the valve core. When the transmission rod moves downward, it can drive the dial to move toward the edge of the valve core.

[0012] Preferably, a protrusion is provided on the upper surface of the dial upward, the slot is provided in the protrusion, a recess is provided at the lower part of the spring seat, and the protrusion is inserted into the recess.

[0013] The above technical solution not only allows the transmission rod to have a larger activity space when swinging up and down, but also reduces the overall height of the valve core, reduces the material usage, and reduces the cost. The convex part and the concave part cooperate with each other to further limit the sliding direction.

[0014] Preferably, a fixing column is provided on the spring seat, and the spring is sleeved on the fixing column.

[0015] Through the above technical solution, the spring is sleeved on the fixed column. After the spring is installed, the position is more stable and it is not easy to bend, thereby avoiding affecting the operating feel or causing jamming.

[0016] Preferably, a mounting ear is provided at the lower portion of the button, and the upper end of the transmission rod is hinged to the mounting ear via a pin.

[0017] Through the above technical solution, the upper end of the transmission rod can be connected to the button more stably and conveniently.

[0018] Preferably, a positioning block or a positioning groove for limiting the circumferential position of the button and / or the spring seat is provided in the housing.

[0019] Through the above technical scheme, the circumferential position of the button and the spring seat can be determined more conveniently, avoiding circumferential rotation of the button and the spring seat during use, ensuring that the movable valve plate can slide along the designed direction, and ensuring the accuracy of the matching position of the movable valve plate and the fixed valve plate.

[0020] Preferably, the lower end of the spring seat and the upper part of the dial are provided with guide grooves and guide blocks that cooperate with each other.

[0021] Through the above technical solution, after the guide groove and the guide block are set, the sliding direction of the dial can be further restricted, so that the dial can only slide along the set direction.

[0022] Preferably, the shell includes a cover body and a base, the inner cavities of the cover body and the base cooperate with each other to form a mounting cavity, and the cover body and the base are connected by a buckle.

[0023] Through the above technical solution, the cover body and the inner cavity of the base cooperate with each other to form an installation cavity, and the movable valve plate, the fixed valve plate, the spring seat and the dial are installed in the installation cavity. The shell is divided into a cover body and a base, which are arranged separately and are convenient for processing. The cover body and the base are connected by a buckle, which is convenient for assembly and disassembly.

[0024] Preferably, a water inlet hole and / or a water outlet hole is provided on the fixed valve plate, and a connecting groove is provided on the movable valve plate.

[0025] Through the above technical solution, the fixed valve plate can be provided with a water inlet hole or a water outlet hole, or with one water inlet hole and one water outlet hole, or both water outlet holes. The movable valve plate is provided with a connecting groove, and when the movable valve plate slides, the position of the connecting groove changes, and the connecting state with the water inlet hole or the water outlet hole on the movable valve plate changes, thereby changing the water outlet state of the valve core.

[0026] Preferably, a claw is provided on the bottom surface of the dial, a claw groove is provided on the movable valve plate, and the number of the claws is at least two.

[0027] Through the above technical solution, the movable valve plate and the dial can be conveniently fixed circumferentially through the cooperation of the claw and the claw groove, so that the dial can drive the movable valve plate to slide.

[0028] Compared with the prior art, the beneficial effects of the present invention are: changing the sliding mode and transmission mode of the movable valve plate, thereby slowing down the overall structure and operating feel of the pressing valve core, reducing the possible jamming of the valve core during the pressing process, reducing production costs, and making assembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective view of an embodiment;

[0030] Figure 2 is a cross-sectional schematic diagram of an embodiment;

[0031] Figure 3 An exploded view of an embodiment;

[0032] Figure 4 An exploded view of the button connection part in the embodiment;

[0033] Figure 5 A three-dimensional view of the lower part of the spring seat in the embodiment;

[0034] Figure 6 Schematic diagram of the matching position of the transmission rod and the dial in the embodiment;

[0035] Figure 7 is a three-dimensional diagram of the lower surface of the dial in the embodiment;

[0036] Figure 8 A three-dimensional diagram of a specific valve plate in an embodiment;

[0037] Fig. 9 A three-dimensional view of the lower surface of the movable valve plate in the embodiment;

[0038] Fig.10 Schematic diagram of the positions of the movable valve plate and the fixed valve plate when the button is not pressed in the embodiment;

[0039] Fig.11 Schematic diagram of the positions of the movable valve plate and the fixed valve plate when the button is pressed in the embodiment;

[0040] Fig.12 2 is a three-dimensional diagram of the cover body in the embodiment.

[0041] Figure numerals: 1, housing; 2, movable valve plate; 3, fixed valve plate; 4, button; 5, spring seat; 6, spring; 7, dial; 8, transmission rod; 9, slot; 10, connecting hole; 11, protrusion; 12, protrusion; 13, recessed portion; 14, fixing column; 15, positioning block; 16, positioning groove; 17, guide groove; 18, guide block; 19, mounting ear; 20, pin shaft; 21, cover body; 22, base; 23, mounting cavity; 24, buckle; 25, water inlet hole; 26, water outlet hole; 27, connecting groove; 28, claw; 29, claw groove; 30, water inlet; 31, water outlet. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0044] like Figures 1 to 12 As shown, a push valve core includes a housing 1, the housing 1 includes a cover 21 and a base 22, and the cover 21 and the base 22 are connected by a buckle 24. The cover 21 and the base 22 are hollow inside to form an inner cavity, and the inner cavity of the cover 21 and the inner cavity of the base 22 cooperate to form an installation cavity 23. The installation cavity 23 is installed with a button 4, a spring seat 5, a dial 7, a movable valve plate 2 and a fixed valve plate 3.

[0045] The lower part of the dial 7 extends downward with three claws 28, which are evenly distributed around the circumference. The top of the movable valve plate 2 is provided with three claw grooves 29, and the claws 28 are inserted into the claw grooves 29, so that the movable valve plate 2 and the dial 7 are fixed in the circumferential direction. A clamping block is provided at the bottom of the inner cavity of the base 22, and a clamping block groove is provided at the edge of the fixed valve plate 3. The fixed valve plate 3 and the base 22 are fixed in the circumferential direction by the clamping block and the clamping block groove that cooperate with each other. When the dial 7 moves, the movable valve plate 2 moves with the dial 7. A transmission rod 8 is connected between the button 4 and the dial 7. The upper end of the transmission rod 8 is connected to one side of the lower part of the button 4, and the lower end of the transmission rod 8 passes through the connecting hole 10 on the spring seat 5 and is connected to the dial 7 in a transmission manner. A spring 6 is installed between the spring seat 5 and the button 4. The spring 6 is used to push the button 4 to reset. A fixing column 14 is also provided on the spring seat 5, and the spring 6 is sleeved on the outside of the fixing column 14 to prevent the spring 6 from shifting.

[0046] Two mounting ears 19 are provided on one side of the lower end of the button 4, and the pin shaft 20 passes through the mounting ears 19 and the upper end of the transmission rod 8, so that the upper end of the transmission rod 8 is installed between the two mounting ears 19. The upper end of the spring 6 contacts the middle of the button 4, thereby avoiding interference with the upper end of the transmission rod 8. A notch is provided on the spring seat 5 below the mounting ear 19. When the button 4 is pressed, the mounting ear 19 moves downward into the notch to avoid interference between the button 4 and the spring seat 5. A card slot 9 is provided on the lower surface of the dial 7, and the lower end of the transmission rod 8 extends into the card slot 9 through the connecting hole 10 on the dial 7. Outwardly protruding protrusions 11 are provided on both sides of the lower end of the transmission rod 8, and the protrusions 11 are stuck at both ends of the card slot 9. The width of the outer side surfaces of the two protrusions 11 is greater than the width of the connecting hole 10. When the button 4 is pressed, the upper end of the transmission rod 8 also moves downward with the button 4. At the same time, due to the inclined setting of the transmission rod 8, the lower end of the transmission rod 8 slides horizontally to the side away from the upper end of the transmission rod 8, and at the same time drives the dial 7 and the fixed valve plate 3 to move away from the upper end of the transmission rod 8, changing the water outlet state of the valve core. When the button 4 is released, the button 4 moves upward under the action of the spring 6, and drives the upper end of the transmission rod 8 to move upward. When the upper end of the transmission rod 8 moves upward, the lower end of the transmission rod 8 slides horizontally in the direction close to the upper end of the transmission rod 8, and pulls the dial 7 and the movable valve plate 2 to slide horizontally, changing the position of the dial 7 and the movable valve plate 2, so that the valve core returns to the original water outlet state.

[0047] The upper surface of the dial 7 is provided with a protrusion 12, and the slot 9 is provided in the protrusion 12. The provision of the protrusion 12 can provide installation space for the slot 9. The bottom of the spring seat 5 is provided with a recessed portion 13, and during installation, the protrusion 12 extends into the recessed portion 13. The upper end of the protrusion 12 and the top surface of the recessed portion 13 fit together, and relative sliding can occur between the two. The provision of the recessed portion 13 can reduce the overall height of the valve core.

[0048] A positioning block 15 is provided in the housing 1 to limit the circumferential position of the button 4 and the spring seat 5, and a positioning groove 16 is provided on the button 4 and the spring seat 5 to cooperate with the positioning block 15. The positioning groove 16 cooperates with the positioning block 15 to prevent the button 4 and the spring seat 5 from rotating circumferentially in the cover body 21, thereby affecting the accuracy of the cooperation position of the movable valve plate 2 and the fixed valve plate 3.

[0049] A guide groove 17 is also provided at the bottom of the spring seat 5, and a guide block 18 is protruded on the upper part of the dial 7 and cooperates with the guide groove 17. The setting of the guide block 18 and the guide groove 17 can further limit the sliding direction of the dial 7, ensuring that the sliding direction of the dial 7 is consistent with the sliding direction of the lower end of the transmission rod 8, thereby avoiding the button 4 from getting stuck when it is pressed or released, making the operation feel more comfortable when pressing and the reset smoother.

[0050] The fixed valve plate 3 is also provided with a water inlet hole 25 and a water outlet hole 26 penetrating the fixed valve plate 3. The base 22 is provided with a water inlet 30 and a water outlet 31. The water inlet 30 is connected to the water inlet hole 25, and the water outlet 31 is connected to the water outlet hole 26. The movable valve plate 2 is provided with a connecting groove 27. The connecting groove 27 is used to connect the water inlet hole 25 and the water outlet hole 26. When the button 4 is not pressed, the positions of the movable valve plate and the fixed valve plate are as shown in FIG. Fig.10 As shown in the figure, the thick solid line part is used to indicate the position of the connecting groove 27 on the bottom surface of the movable valve plate 2. At this time, the connecting groove 27 is located above the water inlet hole 25 and the water outlet hole 26, connecting the water inlet hole 25 and the water outlet hole 26, and the valve core discharges water normally. When the button 4 is pressed, as shown in FIG. Fig.11 As shown, the fixed valve disc 3 slides toward one side of the fixed valve disc 3, so that the connecting groove 27 moves away from the upper end of the water inlet hole 25, the water inlet hole 25 and the water outlet hole 26 are not connected, and the water flow is cut off. When the button 4 is released, the button 4 moves upward under the action of the spring 6, and at the same time drives the dial 7 and the movable valve disc 2 to reset through the transmission rod 8, and restores the initial connection state. A sealing ring is installed between the fixed valve disc 3 and the base 22, a sealing ring is installed on the outer surface of the middle part of the base 22, and a sealing ring is also installed on the water inlet, so as to ensure the sealing effect inside the valve core and during installation.

[0051] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A push valve core, comprising a housing (1), a movable valve plate (2), a fixed valve plate (3) and a button (4) being installed in the housing (1), wherein: A spring seat (5) is installed in the housing (1), a spring (6) is installed between the spring seat (5) and the button (4), a dial (7) is installed below the spring seat (5), the movable valve plate (2) is circumferentially fixed on the dial (7), the button (4) and the dial (7) are connected by a transmission rod (8), the upper end of the transmission rod (8) is connected to one side of the lower part of the button (4), the lower end of the transmission rod (8) passes through the spring seat (5) and is connected to the dial (7), the transmission rod (8) is arranged obliquely, when the button (4) is pressed, the upper end of the transmission rod (8) moves downward, and the lower end of the transmission rod (8) drives the dial (7) to slide toward the side of the fixed valve plate (3), so that the movable valve plate (2) and the fixed valve plate (3) move relative to each other, thereby changing the water discharge state; When the upper end of the transmission rod (8) moves upward, the lower end of the transmission rod (8) pulls the dial (7) to reset; A slot (9) is provided on the lower surface of the dial (7), and the lower end of the transmission rod (8) extends into the slot (9) through a connecting hole (10) on the dial (7). Both sides of the lower end of the transmission rod (8) are provided with outwardly protruding portions (11), and the protruding portions (11) are stuck in the slot (9); A protrusion (12) is arranged on the upper surface of the dial (7) facing upward, the clamping groove (9) is arranged in the protrusion (12), a recess (13) is arranged at the lower part of the spring seat (5), and the protrusion (12) is clamped into the recess (13); A fixing column (14) is arranged on the spring seat (5), and the spring (6) is sleeved on the fixing column (14); A mounting ear (19) is arranged at the lower part of the button (4), and the upper end of the transmission rod (8) is hingedly connected to the mounting ear (19) through a pin shaft (20).

2. The push valve core according to claim 1, characterized in that: A positioning block (15) or a positioning groove (16) for limiting the circumferential position of the button (4) and / or the spring seat (5) is arranged in the housing (1).

3. The push valve core according to claim 2, characterized in that: The lower end of the spring seat (5) and the upper part of the dial (7) are provided with a guide groove (17) and a guide block (18) which cooperate with each other.

4. The push valve core according to claim 1, characterized in that: The housing (1) comprises a cover (21) and a base (22); the inner cavities of the cover (21) and the base (22) cooperate with each other to form a mounting cavity (23); the cover (21) and the base (22) are connected via a buckle (24).

5. The push valve core according to claim 1, characterized in that: The fixed valve plate (3) is provided with a water inlet hole (25) and / or a water outlet hole (26), and the movable valve plate (2) is provided with a connecting groove (27).

6. The push valve core according to claim 1, characterized in that: The bottom surface of the dial (7) is provided with a clamping claw (28), and the movable valve plate (2) is provided with a clamping claw groove (29), and the number of the clamping claws (28) is at least two.

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