Push-to-open angle valve

Abstract

The present invention provides a push-to-switch angle valve, wherein the valve core structure is provided with a switch housing, a valve core shell, a connecting rod and three sealing structures; the valve core is provided with a valve core water outlet, the first sealing structure is a sealing structure between the valve core shell and the valve core, the second sealing structure is a sealing structure between the valve core shell and the valve core, and the second sealing structure is located between the valve core shell water outlet and the valve core water outlet; the third sealing structure is a normally closed sealing structure, which is used to separate the water-passing inner cavity of the valve core shell from the switch housing; when the valve is closed, between the second sealing structure and the third sealing structure, the space outside the valve core in the valve core structure is set as a water storage space, and the water storage space is connected to the water inlet of the valve core shell through the valve core water outlet. The angle valve of the present invention can form a working environment with water pressure both in front and behind, with small switching resistance, and can provide better sealing performance.

Description

Technical Field

[0001] The invention relates to a push-on / off angle valve. Background Art

[0002] For angle valves, if a push-switch type is used, the valve core in the conventional push-switch valve core structure is connected to the end of the pressure rod of the push-switch. The push-switch is equipped with a button, and the button is connected to the pressure rod. The motion control structure in the push-switch can provide two front and rear stop positions for the pressure rod in the axial direction, so that the valve core can also have two stop positions, corresponding to the open and closed states of the valve respectively.

[0003] In this way, when the push-to-switch angle valve is pressed from a closed state to an open state, it needs to be subjected to the resistance of the water pressure in front, which will be laborious in the initial stage, affecting the operating experience, and will place higher requirements on the structural strength of the valve core structure. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a push-to-switch angle valve, which has small switching resistance and can provide better sealing performance.

[0005] To this end, the present invention adopts the following technical solutions:

[0006] A push-on / off angle valve comprises a valve housing and a valve core structure, wherein the valve core structure comprises a push-on switch and a valve core, wherein the push-on switch comprises a pressure rod having a certain length and a motion control mechanism, wherein the motion control mechanism is provided with a spring, and wherein the motion control mechanism provides two front and rear stop positions for the pressure rod along the pressed direction, wherein the valve core structure is provided with a switch housing, a valve core housing, and a connecting rod;

[0007] The valve core is arranged in a valve core housing, the valve core is provided with a valve core water outlet, and the valve core housing is provided with a water outlet and a water inlet;

[0008] The front end of the connecting rod is connected to the valve core, and the rear end of the connecting rod extends into the switch housing and is connected to the pressure rod through a connecting structure;

[0009] The valve core structure is provided with three sealing structures, the first sealing structure is a sealing structure between the valve core shell and the valve core, and is arranged between the water inlet and the water outlet of the valve core shell; the second sealing structure is a sealing structure between the valve core shell and the valve core, and is in an unsealed state when the valve is opened, and in a sealed state when the valve is closed, and the second sealing structure is between the water outlet of the valve core shell and the water outlet of the valve core; the third sealing structure is a normally closed sealing structure, which is used to separate the water-passing inner cavity of the valve core shell from the switch housing; and,

[0010] When the valve is closed, the space outside the valve core in the valve core structure between the second sealing structure and the third sealing structure is set as a water storage space, and the water storage space is connected with the water inlet of the valve core shell through the valve core water outlet.

[0011] On the basis of adopting the above technical solutions, the present invention may also adopt the following further technical solutions, or use these further technical solutions in combination:

[0012] According to the direction in which the pressure rod is pressed down as the forward direction, the valve core shell is located in front of the switch shell, the water inlet of the valve core shell is located in front of the water outlet of the valve core shell, the second sealing structure is arranged behind the water inlet of the valve core shell, and the first sealing structure is arranged in front of the water inlet of the valve core.

[0013] The switch housing and the valve core housing are connected together and arranged in the valve housing. The switch housing is provided with an external thread and is connected to the valve housing through the external thread. The valve housing is provided with a water inlet communicated with the water inlet of the valve core housing and a water outlet communicated with the water outlet of the valve core housing; and a sealing structure is provided between the valve housing and the valve core housing, and a sealing structure is provided between the valve housing and the switch housing to separate the water outlet of the valve core housing from the outside.

[0014] The switch housing and the valve core housing are cylindrical in shape and are connected together with front and rear threads. A water outlet cylinder component is arranged at the front end of the valve core housing. The water outlet cylinder component is provided with an external thread, which is connected with the front internal thread of the front end of the valve core housing, and the sealing ring of the first sealing structure is clamped by the threaded connection; the sealing ring of the first sealing structure is provided with an installation position, and the installation position is a T-shaped cross-sectional structure, and through the T-shaped cross-sectional structure, the front end of the valve core housing and the water outlet cylinder component are sealed at the same time; a sealing ring installation groove is provided on the outer side of the water outlet cylinder component, which is used to install the sealing ring serving as the sealing structure between the valve housing and the valve core housing.

[0015] The valve core is in a cylindrical structure, the top of the valve core cylinder is connected to the connecting rod, and the valve core water outlet is arranged at the top of the valve core cylinder.

[0016] The switch housing and the valve core housing are cylindrical in shape and connected together front and back. The third sealing structure includes a sealing ring seat, which is provided with a center hole for the connecting rod to pass through. The sealing ring seat is provided with a sealing ring placement groove around the center hole, and the sealing ring is sealed and matched with the connecting rod.

[0017] A bottom plate is provided at the bottom of the switch housing, and a center hole is provided on the bottom plate for the connecting rod to pass through. The sealing ring seat includes a cylindrical part and a top, and is supported by the valve core housing through the cylindrical part. The center hole of the sealing ring seat is provided on the top, and the sealing ring placement groove is provided on the side of the top facing the bottom plate of the switch housing, and the sealing ring of the third sealing structure is fixed by cooperating with the bottom plate of the switch housing.

[0018] The switch housing and the valve core housing are respectively cylindrical and threadedly connected together; the sealing ring seat includes a through cylinder and a top, the sealing ring seat is supported by the valve core housing through the cylindrical part, and the sealing ring seat is tightened by the threaded connection between the switch housing and the valve core housing, the sealing ring of the second sealing structure is clamped between the bottom of the sealing ring seat and the valve core housing, and simultaneously seals the cylindrical part of the sealing ring seat and the valve core housing and the switch housing.

[0019] The rear cylinder of the valve core housing and the front end of the switch housing are threadedly connected, and a groove for a sealing ring installation part of a second sealing structure is arranged inside the rear cylinder. The sealing ring installation part is in a T-shaped cross-sectional structure and is clamped by the valve core housing, the front end of the switch housing, and the cylindrical part of the sealing ring seat. The T-shaped cross-sectional structure is used to seal the cylindrical part of the sealing ring seat and the valve core housing and the switch housing.

[0020] A bottom plate is arranged at the bottom of the switch housing, an external thread is arranged at the front end of the pressure rod, the connecting rod is connected to the pressure rod through a nut, the spring is arranged between the bottom plate of the switch housing and the nut, and the rear end of the connecting rod is fixedly connected to the nut.

[0021] Due to the adoption of the technical solution of the present invention, a working environment with water pressure at the front and back can be formed inside the angle valve of the present invention, and the force value during the pressing operation only needs to be sufficient to overcome the friction force, the force value of the elastic structure and the water pressure borne by the cross-sectional area of ​​the connecting rod. When pressing from a closed state to an open state, the switch resistance is small, and the thinner the connecting rod, the smaller the resistance; and, a sealing ring isolating the outside of the switch can be provided at the front part of the connecting rod, which can form a benign promoting effect that the thinner the connecting shaft, the smaller the resistance and the better the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the valve core structure of the present invention when the valve is in a closed state.

[0023] Figure 2 It is a front view of the valve core structure of the present invention when the valve is in a closed state.

[0024] Figure 3 It is a cross-sectional view of the valve core structure of the present invention when the valve is in the valve open state.

[0025] Figure 4 It is a front view of the valve core structure of the present invention when the valve is in the valve open state.

[0026] Figure 5 It is a cross-sectional view of the angle valve of the present invention.

[0027] Figure 6 It is a front schematic diagram of the one-way slide and the gear position in the motion control mechanism. DETAILED DESCRIPTION

[0028] Referring to the accompanying drawings, the push-to-switch angle valve provided by the present invention comprises a valve housing 400 and a valve core structure, wherein the valve core structure comprises a push-to-switch and a valve core 1 .

[0029] The switch assembly of the push switch includes a pressure rod 101 of a certain length and a motion control mechanism, wherein the motion control mechanism is provided with a spring 105, and the motion control mechanism provides two stop positions for the pressure rod along the direction of being pressed, corresponding to the closed state and the open state of the valve respectively. The motion control mechanism will be described in detail below.

[0030] The valve core structure is provided with a switch housing 100, a valve core housing, and a connecting rod 2. According to the direction in which the pressure rod 101 is pressed down as the forward direction, the valve core housing is located in front of the switch housing 100. The switch housing 100 and the valve core housing are cylindrical in shape and connected together front and back (for example, threaded connection), and are arranged in the valve housing 400. The shapes of the switch housing 100 and the valve core housing match the inner cavity of the valve housing 400.

[0031] The valve core 1 is arranged in the valve core housing, and moves straight up and down in the valve core housing driven by the switch, the valve core 1 is provided with a valve core water outlet 10, the valve core housing is provided with a water outlet 302 and a water inlet 301, and the valve core housing is formed by connecting two front and rear short cylinders 31 and 32. For example, in a clamping connection, the water outlet 302 is provided at the clamping position, and the water inlet 301 is provided at the front short cylinder 31.

[0032] The front end of the connecting rod 2 is connected to the valve core 1 , and the rear end of the connecting rod 2 extends into the switch housing 100 and is connected to the pressure rod 101 via a connecting structure.

[0033] The valve core structure is provided with three sealing structures. The first sealing structure is a sealing structure between the valve core housing and the valve core 1, which is provided between the water inlet 301 and the water outlet 302 of the valve core housing and is a normally closed seal. The valve core 1 always maintains a sealed matching state with the sealing ring 41 of the first sealing structure no matter which position it slides to. The second sealing structure is a sealing structure between the valve core housing and the valve core 1, which is located behind the first sealing structure. When the valve is opened, the valve core 1 slides to the front of the sealing ring 42 of the second sealing structure and is in a released sealing state. When the valve is closed, the valve core 1 slides to a position in which it is in a sealed matching state with the sealing ring 42. The second sealing structure is located between the water outlet of the valve core housing and the water outlet of the valve core; the third sealing structure is a normally closed sealing structure, which is used to separate the water-passing inner cavity of the valve core housing from the switch housing. Furthermore, when the valve is closed, between the second sealing structure and the third sealing structure, the space outside the valve core 1 in the valve core structure is set as a water storage space 300, which is communicated with the water inlet 301 of the valve core shell through the valve core water outlet 10. By designing the return stroke of the valve core 1 or the length of the valve core shell, a certain distance is maintained between the valve core 1 and the structure behind it (such as the sealing ring seat 5 described below) to provide sufficient water storage space 300. In this way, at any time when pressing, the back of the valve core 1 is filled with live water (water flows), forming a situation where there is water pressure both above and below, the pressing force value will be relatively small, and when opening, the water flow impact will be smaller.

[0034] The valve core 1 is in a cylindrical structure, the front of the valve core cylinder is open, the rear of the valve core cylinder is a cylinder top 11, and is connected to the connecting rod 2, and the valve core water outlet 10 is arranged on the cylinder top 11 of the valve core cylinder.

[0035] The third sealing structure includes a sealing ring seat 5, which includes a cylindrical part 51 and a top 52, and is supported by the valve core housing through the cylindrical part 51. The top 52 is provided with a central hole 53 of the sealing ring seat for the connecting rod 2 to pass through. The bottom of the switch housing 100 is provided with a bottom plate 102, and the bottom plate 102 is provided with a central hole 103 for the connecting rod 2 to pass through. The top of the sealing ring seat 5 is provided with a sealing ring placement groove 54 around the central hole 53 on the side facing the bottom plate of the switch housing. The sealing ring 43 of the third sealing structure is placed in the sealing ring placement groove 54, and the sealing ring placement groove 54 fixes the sealing ring 43 by cooperating with the bottom plate 102 of the switch housing. The inner diameter of the sealing ring 43 only needs to match the diameter of the connecting rod 2, and is sealed with the connecting rod 2, which has a better sealing effect and smaller sliding resistance.

[0036] The sealing ring seat 5 is supported by the valve core housing through the cylindrical part 51, and the sealing ring seat 5 is tightened by the threaded connection between the switch housing 100 and the valve core housing. The sealing ring 42 of the second sealing structure is clamped between the bottom of the sealing ring seat and the valve core housing, and the cylindrical part 51 of the sealing ring seat 5 and the valve core housing and the switch housing are sealed at the same time. For example, the rear cylinder 32 of the valve core housing and the front end of the switch housing are threadedly connected, and a groove for the installation part 421 of the sealing ring 42 is provided inside the rear cylinder 32. The installation part 421 is a T-shaped cross-sectional structure, which is clamped by the valve core housing, the front end of the switch housing, and the cylindrical part of the sealing ring seat 5, and the cylindrical part 51 of the sealing ring seat 5 and the valve core housing and the switch housing are sealed through the T-shaped cross-sectional structure.

[0037] The front end of the pressure rod 101 is provided with an external thread, the connecting rod 2 is connected to the pressure rod 101 through a nut 104, the spring 105 is arranged between the switch housing bottom plate 102 and the nut 104, and the rear end of the connecting rod 2 is fixedly connected to the nut 104, for example, a connecting hole is arranged at the top center of the nut, and the rear end of the connecting rod 2 is snap-fitted or threadedly connected to the connecting hole.

[0038] As mentioned above, the switch housing 100 and the valve core housing are connected together and arranged in the valve housing 400. The appearance of the switch housing 100 and the valve core housing matches the inner cavity of the valve housing 400. The switch housing 100 is provided with an external thread 106, and is fixed in the valve housing 400 through the external thread 106 and the thread connection inside the valve housing. The valve housing 400 is provided with a front limiting protrusion 405. The valve core structure is installed from the rear of the valve housing 400, and is threadedly connected to the valve housing through the external thread 106. The front end component of the valve core structure forms a limiting match with the limiting protrusion 405. The valve housing 400 is provided with an inlet 301 connected to the water inlet 301 of the valve core housing. The water inlet 401 and the water outlet 402 communicated with the water outlet 302 of the valve core housing are arranged on the side wall of the valve housing 400, and the water inlet 401 is the front end of the cylinder of the valve housing 400, and the axis of the water outlet 402 and the water inlet are perpendicular; and a sealing structure is arranged between the valve housing 400 and the valve core housing, and a sealing structure (sealing ring 403) is arranged between the valve housing 400 and the switch housing 100 to separate the water outlet 302 of the valve core housing from the outside. The installation of the sealing structure arranged between the valve housing 400 and the valve core housing and the first sealing structure can be considered together: the water outlet cylinder component 33 can be arranged at the front end of the valve core housing, and the water outlet cylinder component 33 is provided with an external thread, which is connected with the front internal thread of the front cylinder 31, and the sealing ring 41 of the first sealing structure is clamped by the threaded connection. The sealing ring 41 is provided with an installation part 411, which is a T-shaped cross-sectional structure, and through the T-shaped cross-sectional structure, the front cylinder 31 and the outlet cylinder part 33 are sealed at the same time. A sealing ring installation groove can be provided on the outer side of the outlet cylinder part 33 for installing the sealing ring 404, which serves as a sealing structure between the valve housing 400 and the valve core housing.

[0039] In this way, each component is stacked and connected layer by layer, which is convenient to install and has reliable performance. Moreover, not only is it labor-saving during the pressing operation, but the desired hand feel can be easily obtained by adjusting the diameter of the connecting rod and the force value of the spring.

[0040] The following is an example of the aforementioned motion control mechanism. A part of the structure of the motion control mechanism is arranged on the pressure rod 101, while another part of the structure is connected to the fixed component 107. The fixed component 107 is provided with a central hole for the pressure rod 101 to pass through. The fixed component 107 is fixedly connected to the switch housing 100 through a connecting structure; wherein, the structure of the motion control mechanism on the fixed component 107 can be a stop hook 109 fixed to the fixed component through a coil spring 108, and the structure on the pressure rod 101 can be two front and rear gears arranged on the surface of the pressure rod 101, namely the rear gear 72 and the front gear 71, and the first one-way slide groove of the stop hook portion that enables the pressure rod 101 to move from the rear gear position to the front gear position and cooperate with the hook portion of the stop hook 109, so that the pressure rod 101 A second one-way slide groove moves from the front gear position to the rear gear position in cooperation with the hook portion of the block hook; the first one-way slide groove includes a backward first slide section 81 starting from the rear gear position and a second slide section 82 leading to the front gear position connected to the first slide section; the second one-way slide groove includes a third slide section 83 starting from the front gear position and a forward fourth slide section 84 connected to the third slide section, and the fourth slide section is connected to the first slide or connected to the rear gear position.

[0041] To achieve the unidirectional relative movement between the slide groove and the hook part of the blocking hook, it can be achieved by designing the groove wall of the slide groove or by designing the groove bottom of the slide groove. In this embodiment, the groove bottom design is adopted to achieve the switch action more reliable and the service life longer. The scheme is as follows: the first slide section is connected with the second slide section in a step-like shape, and at the connection 91, the groove bottom surface of the second slide section is lower than the groove bottom surface of the first slide section; the third slide section is connected with the fourth slide section in a step-like shape, and at the connection 92, the groove bottom surface of the fourth slide section is lower than the groove bottom surface of the third slide section; the second slide section has a downward step 93 near the lower gear position and is connected to the third slide section; the fourth slide section is connected with the first slide section in a step-like shape, and at the connection 94, the groove bottom surface of the first slide section is lower than the groove bottom surface of the fourth slide section.

[0042] It should be noted that the motion control mechanism is not the part to be improved by the present invention, but is a prior art, and the above description is only an example thereof, rather than limiting the scope of the motion control mechanism of the present invention. In addition, the pressure rod 101 is connected to the button cover 110 outside the valve core structure.

[0043] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are also used only for simplicity of description, and do not indicate or imply relative importance.

[0044] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the protection scope of the present invention.

Claims

1. A push-type switch angle valve, comprising a valve housing and a valve core structure, wherein the valve core structure comprises a push-type switch and a valve core, wherein the push-type switch comprises a pressure rod having a certain length and a motion control mechanism, wherein the motion control mechanism is provided with a spring, and wherein the motion control mechanism provides two front and rear stop positions for the pressure rod along the pressed direction, wherein the push-type switch comprises a pressure rod having a certain length and a motion control mechanism, wherein the pressure rod has a certain length and a motion control mechanism, wherein the pressure rod has a certain length and a certain motion control mechanism, and wherein the pressure rod has a certain length and a certain motion control mechanism, ... The valve core structure is provided with a switch housing, a valve core housing, and a connecting rod; The valve core is arranged in a valve core housing, the valve core is provided with a valve core water outlet, and the valve core housing is provided with a water outlet and a water inlet; The front end of the connecting rod is connected to the valve core, and the rear end of the connecting rod extends into the switch housing and is connected to the pressure rod through a connecting structure; The valve core structure is provided with three sealing structures, the first sealing structure is a sealing structure between the valve core housing and the valve core, and is arranged between the water inlet and the water outlet of the valve core housing; the second sealing structure is a sealing structure between the valve core housing and the valve core, and is in an unsealed state when the valve is opened, and is in a sealed state when the valve is closed, and the second sealing structure is between the water outlet of the valve core housing and the water outlet of the valve core; the third sealing structure is a normally closed sealing structure, which is used to separate the water-passing inner cavity of the valve core housing from the switch housing; and, When the valve is closed, the space outside the valve core in the valve core structure between the second sealing structure and the third sealing structure is set as a water storage space, and the water storage space is connected with the water inlet of the valve core shell through the valve core water outlet.

2. The push-to-switch angle valve according to claim 1, characterized in that: According to the direction in which the pressure rod is pressed down as the forward direction, the valve core shell is located in front of the switch shell, the water inlet of the valve core shell is located in front of the water outlet of the valve core shell, the second sealing structure is arranged behind the water inlet of the valve core shell, and the first sealing structure is arranged in front of the water inlet of the valve core.

3. The push-to-switch angle valve according to claim 1 or 2, characterized in that: The switch housing and the valve core housing are connected together and arranged in the valve housing. The switch housing is provided with an external thread and is connected to the valve housing through the external thread. The valve housing is provided with a water inlet communicated with the water inlet of the valve core housing and a water outlet communicated with the water outlet of the valve core housing; and a sealing structure is provided between the valve housing and the valve core housing, and a sealing structure is provided between the valve housing and the switch housing to separate the water outlet of the valve core housing from the outside.

4. The push-to-switch angle valve according to claim 3, characterized in that: The switch housing and the valve core housing are cylindrical in shape and are connected together with front and rear threads. A water outlet cylinder component is arranged at the front end of the valve core housing. The water outlet cylinder component is provided with an external thread, which is connected with the front internal thread of the front end of the valve core housing, and the sealing ring of the first sealing structure is clamped by the threaded connection; the sealing ring of the first sealing structure is provided with an installation position, and the installation position is a T-shaped cross-sectional structure, and through the T-shaped cross-sectional structure, the front end of the valve core housing and the water outlet cylinder component are sealed at the same time; a sealing ring installation groove is provided on the outer side of the water outlet cylinder component, which is used to install the sealing ring serving as the sealing structure between the valve housing and the valve core housing.

5. The push-to-switch angle valve according to claim 1 or 2, characterized in that: The valve core is in a cylindrical structure, the top of the valve core cylinder is connected to the connecting rod, and the valve core water outlet is arranged at the top of the valve core cylinder.

6. The push-to-switch angle valve according to claim 1 or 2, characterized in that: The switch housing and the valve core housing are cylindrical in shape and connected together front and back. The third sealing structure includes a sealing ring seat, which is provided with a center hole for the connecting rod to pass through. The sealing ring seat is provided with a sealing ring placement groove around the center hole, and the sealing ring is sealed and matched with the connecting rod.

7. The push-to-switch angle valve according to claim 6, characterized in that: A bottom plate is provided at the bottom of the switch housing, and a center hole is provided on the bottom plate for the connecting rod to pass through. The sealing ring seat includes a cylindrical part and a top, and is supported by the valve core housing through the cylindrical part. The center hole of the sealing ring seat is provided on the top, and the sealing ring placement groove is provided on the side of the top facing the bottom plate of the switch housing, and the sealing ring of the third sealing structure is fixed by cooperating with the bottom plate of the switch housing.

8. The push-to-switch angle valve according to claim 7, characterized in that: The switch housing and the valve core housing are respectively cylindrical and threadedly connected together; The sealing ring seat includes a through cylinder and a top, and the sealing ring seat is supported by the valve core housing through the cylinder-shaped part, and is tightened by the threaded connection between the switch housing and the valve core housing, and the sealing ring of the second sealing structure is clamped between the bottom of the sealing ring seat and the valve core housing, and simultaneously seals the cylinder-shaped part of the sealing ring seat and the valve core housing and the switch housing.

9. The push-to-switch angle valve according to claim 8, characterized in that: The rear cylinder of the valve core housing and the front end of the switch housing are threadedly connected, and a groove for a sealing ring installation part of a second sealing structure is arranged inside the rear cylinder. The sealing ring installation part is in a T-shaped cross-sectional structure and is clamped by the valve core housing, the front end of the switch housing, and the cylindrical part of the sealing ring seat. The T-shaped cross-sectional structure is used to seal the cylindrical part of the sealing ring seat and the valve core housing and the switch housing.

10. The push-to-switch angle valve according to claim 1 or 2, characterized in that: A bottom plate is arranged at the bottom of the switch housing, an external thread is arranged at the front end of the pressure rod, the connecting rod is connected to the pressure rod through a nut, the spring is arranged between the bottom plate of the switch housing and the nut, and the rear end of the connecting rod is fixedly connected to the nut.

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