A press-to-exhaust valve

Abstract

The utility model discloses a kind of press type exhaust valves, including valve body, exhaust passage is formed in valve body inside;Sealing seat is set in exhaust passage, sealing seat has the central hole being communicated with exhaust passage;Pressing piece, movably set in the top of valve body;Pushing part, the upper end of pushing part is connected with pressing piece, the lower end of pushing part passes through the central hole of sealing seat;Sealing element, connect in the lower end portion after pushing part passes through central hole, sealing element is cooperated with the lower surface of sealing seat;Elastic reset piece, it is set on pushing part and located between pressing piece and sealing seat, the lower end of elastic reset piece is supported on the upper surface of sealing seat, the upper end of elastic reset piece acts on pressing piece;Advantage is to realize pipeline quick exhaust, and it is more convenient to operate.

Description

Technical Field

[0001] This utility model relates to an exhaust valve, and more particularly to a push-button exhaust valve. Background Technology

[0002] In modern household water purifiers, commercial water purification equipment, and water treatment systems, the pipeline venting device is a crucial component for ensuring the efficient and stable operation of the water purification system. During initial installation, filter replacement, or restarting after a long period of inactivity, a large amount of air often accumulates in the inlet pipe, filter housing, and internal piping of a water purifier. The presence of this air can severely affect the normal operation of the water purifier. Air accumulation not only leads to reduced water flow and intermittent water flow but also causes the booster pump to run dry, resulting in noise and negatively impacting the user experience. More seriously, air resistance in the pipeline can cause uneven water pressure distribution, leading to uneven stress on core filtration elements such as RO membranes and ultrafiltration membranes, shortening filter lifespan, and increasing user operating costs. Therefore, developing a venting device specifically designed for the characteristics of water purification equipment is of significant practical importance for improving the efficiency of water purifiers, extending equipment lifespan, and enhancing the user experience.

[0003] Currently, the most common venting solution in the water purifier industry is to install a manual vent valve on top of the piping system or filter housing. These manual vent valves typically employ a rotary structure, controlling the opening and closing of the venting channel by rotating the valve stem or handwheel. The specific structure includes a valve body, valve stem, sealing gasket, and rotating handle. The valve stem moves up and down within the valve body via a threaded connection. When the handle is rotated, causing the valve stem to rise, the sealing gasket disengages from the valve seat, creating a venting channel and allowing air to escape from the pipes. Reverse rotation causes the valve stem to descend, pressing the sealing gasket against the valve seat and closing the venting channel. Some products also feature a vent guide port on the side of the valve body to control the direction of water flow during venting. This rotary manual vent valve is widely used in the water purifier industry due to its relatively simple structure and low cost.

[0004] However, existing rotary manual air vent valves have significant operational inconveniences in practical use. Due to the threaded rotation method, users need to rotate the valve multiple times to fully open the air vent, making the entire air venting process time-consuming. This is especially difficult when the water purifier is installed in a confined space. Furthermore, this structure has poor air venting control precision, making it difficult for users to accurately judge the degree of valve opening. This can easily lead to over-venting, resulting in wasted purified water, or insufficient venting, affecting equipment operation. Summary of the Invention

[0005] The purpose of this invention is to provide a push-button exhaust valve that enables rapid exhaust from pipelines and is relatively easy to operate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a push-button type exhaust valve, comprising, Valve body, wherein an exhaust passage is formed inside the valve body; A sealing seat is disposed within the exhaust channel, and the sealing seat has a central hole communicating with the exhaust channel; A pressing element is movably disposed on the top of the valve body; A pusher, the upper end of which is connected to the pressing member, and the lower end of which passes through the central hole of the sealing seat; A sealing element is connected to the lower end portion of the pusher after it passes through the central hole, and the sealing element mates with the lower surface of the sealing seat; An elastic reset member is sleeved on the push member and located between the press member and the sealing seat. The lower end of the elastic reset member is supported on the upper surface of the sealing seat, and the upper end of the elastic reset member acts on the press member.

[0007] Preferably, it further includes a sealing ring, which is sleeved on the pusher; the lower end face of the sealing seat is provided with an inwardly and upwardly tapered inclined surface, and the sealing ring is sealed in conjunction with the tapered inclined surface.

[0008] Preferably, the device further includes a connector screwed to the upper end of the pusher, the head of which is connected to the pressing member.

[0009] Preferably, the central portion of the pressing member extends downward to form a sleeve, the sleeve is inserted into the exhaust channel and there is a gap between the sleeve and the inner wall of the exhaust channel, the inner wall of the sleeve is provided with a protruding structure, and the head of the connector rests on the protruding structure.

[0010] Preferably, the lower outer wall of the valve body is provided with an external threaded connection portion, the upper outer wall of the valve body is provided with a knob portion, and the outer peripheral surface of the knob portion is provided with an anti-slip texture.

[0011] Preferably, the valve body has an annular limiting ring inside the top, and the pressing member has an annular protrusion on its outer periphery. The annular protrusion is located below the annular limiting ring and cooperates with the annular limiting ring to limit the axial movement range of the pressing member relative to the valve body.

[0012] Preferably, the valve body is made of a transparent material.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: This push-type exhaust valve achieves a fast and convenient exhaust function. In the initial state, the upward elastic force generated by the elastic reset member acts on the pressing member, keeping the pressing member in the upper position. At this time, the pushing member drives the sealing member to tightly fit against the lower surface of the sealing seat, forming a reliable seal, blocking the exhaust channel, and preventing liquid leakage in the pipeline. When exhaust is required, the user only needs to press the pressing member downward. The pressing member drives the pushing member to move downward. Since the pushing member passes through the central hole of the sealing seat and is connected to the sealing member, the downward movement of the pushing member directly drives the sealing member to detach from the lower surface of the sealing seat. At this time, the exhaust channel is opened, and the gas in the pipeline can be quickly discharged through the central hole of the sealing seat and the exhaust channel. After exhaust is completed, the user releases the pressing member, and the elastic reset member immediately takes effect. Its stored elastic potential energy pushes the pressing member upward to reset. The pressing member, through the pushing member, drives the sealing member to press back against the lower surface of the sealing seat, restoring the sealing state.

[0014] The entire structure is simple and efficient. Through the coordinated operation of the pressing, pushing and sealing components, one-button operation is achieved, which greatly simplifies the operation steps compared to the traditional rotary exhaust valve. The automatic reset function of the elastic reset component ensures the reliability of the seal and avoids the risk of forgetting to close the valve. The central hole design of the sealing seat not only provides precise guidance for the pushing component, but also forms part of the exhaust channel, making full use of the structural space and making the entire device compact and reliable in operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural diagram of the valve body in this utility model; Figure 4 This is a three-dimensional structural diagram of the present invention in its disassembled state; In the diagram, 1. Valve body; 2. Exhaust passage; 3. Sealing seat; 4. Center hole; 5. Pressing element; 6. Pushing element; 7. Sealing element; 8. Elastic reset element; 9. Sealing ring; 10. Conical bevel; 11. Connecting element; 12. Sleeve; 14. Protruding structure; 15. External threaded connection; 16. Knob; 17. Anti-slip texture; 18. Annular limit ring; 19. Annular protrusion. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] Example 1: As Figures 1-4 As shown, a push-button type exhaust valve includes, Valve body 1, with an exhaust passage 2 formed inside the valve body 1; A sealing seat 3 is disposed inside the exhaust channel 2, and the sealing seat 3 has a central hole 4 that communicates with the exhaust channel 2; The pressing element 5 is movably disposed on the top of the valve body 1; Pushing member 6, the upper end of which is connected to pressing member 5, and the lower end of pushing member 6 passing through the center hole 4 of sealing seat 3; The seal 7 is connected to the lower end of the pusher 6 after it passes through the central hole 4, and the seal 7 mates with the lower surface of the sealing seat 3; The elastic reset member 8 is sleeved on the push member 6 and located between the pressing member 5 and the sealing seat 3. The lower end of the elastic reset member 8 is supported on the upper surface of the sealing seat 3, and the upper end of the elastic reset member 8 acts on the pressing member 5.

[0019] Example 2: Figures 1-4 As shown, unlike Embodiment 1, it also includes a sealing ring 9, which is sleeved on the pusher 6; the lower end face of the sealing seat 3 is provided with an inwardly and upwardly tapered inclined surface 10, and the sealing ring 9 and the tapered inclined surface 10 are sealed together.

[0020] In the above structure, the sealing ring 9 is fitted on the pusher 6 and can move up and down synchronously with the pusher 6, ensuring the accuracy and consistency of the sealing action. The tapered inclined surface 10 designed on the lower end face of the sealing seat 3, which converges inward and upward, forms a line contact seal with the sealing ring 9, which has a better sealing effect than the planar seal.

[0021] When the elastic reset member 8 pushes the pressing member 5 to reset, the sealing ring 9 moves upward with the pushing member 6 and gradually presses into the conical inclined surface 10. The wedge effect generated by the conical structure causes the sealing ring 9 to undergo radial compression deformation, forming a uniform circumferential sealing pressure, effectively compensating for machining errors and assembly tolerances, and greatly improving sealing reliability. At the same time, the conical inclined surface 10 also has an automatic centering function. Even if the pushing member 6 is slightly misaligned during movement, the sealing ring 9 can automatically adjust its position under the guidance of the conical inclined surface 10, ensuring that the sealing ring 9 is always in the optimal sealing position. In addition, this conical sealing structure can also produce a self-tightening sealing effect. The greater the pressure in the pipeline, the greater the radial clamping force on the sealing ring 9, and the better the sealing effect, which is particularly suitable for applications with a certain working pressure, such as water purifiers.

[0022] The sealing ring 9 is made of elastic material, which has good resilience and durability. It can maintain stable sealing performance even after long-term use, effectively solving the problems of easy wear and leakage of traditional exhaust valve thread seals.

[0023] In this embodiment, a connector 11 is also included. The connector 11 is screwed to the upper end of the pusher 6, and the head of the connector 11 is connected to the pressing member 5.

[0024] This structure achieves a reliable connection and convenient assembly between the pressing member 5 and the pushing member 6 by using the connecting member 11 as an intermediate connecting element. The connecting member 11 is fixed to the upper end of the pushing member 6 by a threaded connection. This threaded design not only ensures the connection strength but also allows the axial position of the pushing member 6 to be finely adjusted by adjusting the thread insertion depth, which is beneficial for controlling the initial sealing pressure between the sealing member 7 and the sealing seat 3 and improving the assembly accuracy of the device. The head of the connecting member 11 is connected to the pressing member 5, forming a stable force transmission path. When the pressing member 5 is subjected to downward pressing force, the force is reliably transmitted to the body of the connecting member 11 through the head of the connecting member 11, and then transmitted to the pushing member 6 through the threaded connection, ensuring the continuity and stability of force transmission.

[0025] When it is necessary to replace the seal 7 or the elastic reset part 8, simply unscrew the connector 11 to separate the pressing part 5 and the pushing part 6, which greatly simplifies the maintenance process. In addition, the rod of the connector 11 provides an ideal installation position for the elastic reset part 8. The elastic reset part 8 is sleeved on the connector 11, which avoids the lateral displacement of the spring during operation and ensures the stability and reliability of the reset action.

[0026] In this embodiment, the central part of the pressing member 5 extends downward to form a sleeve 12. The sleeve 12 is inserted into the exhaust channel 2 and a gap is left between it and the inner wall of the exhaust channel 2. The inner wall of the sleeve 12 is provided with a protruding structure 14, and the head of the connector 11 rests on the protruding structure 14.

[0027] In the above structure, the sleeve 12, extending downward from the center of the pressing member 5, penetrates deep into the exhaust channel 2, providing precise guidance for the entire pressing assembly. This ensures that the pressing member 5 remains coaxial with the exhaust channel 2 during its up-and-down movement, effectively preventing jamming or sealing failure due to misalignment. The gap between the sleeve 12 and the inner wall of the exhaust channel 2 forms an annular channel. This gap ensures that the sleeve 12 can slide smoothly within the exhaust channel 2 without generating frictional resistance due to excessive tightness, and also provides an additional airflow channel during exhaust, improving exhaust efficiency.

[0028] The protruding structure 14 on the inner wall of the sleeve 12 serves as a support platform for the head of the connector 11. The head of the connector 11 rests on the protruding structure 14, forming a reliable axial positioning and radial limiting. This resting connection has the following advantages compared to a fixed connection: on the one hand, it allows for a slight relative rotation between the connector 11 and the pressing member 5, avoiding torsional stress that may occur during the pressing operation; on the other hand, it facilitates assembly and disassembly. The connection can be completed simply by placing the head of the connector 11 into the sleeve 12 and resting it on the protruding structure 14. At the same time, the structure of the sleeve 12 also enhances the overall rigidity of the pressing member 5, preventing the pressing member 5 from deforming under force.

[0029] In this embodiment, the lower outer wall of the valve body 1 is provided with an external threaded connection part 15, the upper outer wall of the valve body is provided with a knob part 16, and the outer peripheral surface of the knob part 16 is provided with an anti-slip texture 17.

[0030] This structure optimizes both ease of installation and operational reliability through the functional partitioning design of the outer wall of the valve body 1. The external threaded connection part 15 located at the lower part of the valve body 1 provides a standardized connection interface between the exhaust valve and the piping system. This external thread design has the following advantages: the threaded connection can provide sufficient axial preload to ensure reliable sealing between the exhaust valve and the piping interface; the external thread structure facilitates installation and disassembly, and maintenance personnel can replace the exhaust valve simply by rotating the valve body 1 without the need for special tools; the standard thread specification ensures universal compatibility with various water purifier piping systems.

[0031] The knob 16 located on the upper part of the valve body 1 provides an ideal force application point for installation operations. Its outer diameter is usually larger than that of the lower threaded connection part, forming an operating area that is easy to grip. Installers can easily apply sufficient torque to complete the thread tightening. The anti-slip texture 17 designed on the outer circumference of the knob 16 is a reflection of detailed optimization. These textures can be vertical grooves, grid patterns, or other anti-slip patterns. Even if hands are wet or gloves are worn during installation, good grip friction is maintained, effectively preventing slippage and ensuring accurate transmission of installation torque.

[0032] In addition, there is usually a significant diameter difference between the knob part 16 and the threaded connection part. This stepped structure not only provides a limiting function for the installation depth to prevent the thread from being over-screwed and damaging the pipe interface, but also allows for the placement of a sealing gasket on the lower surface of the knob part 16 to further enhance the sealing performance of the connection.

[0033] Example 3: Figures 1-4 As shown, unlike Embodiment 2, the valve body 1 has an annular limiting ring 18 inside the top and an annular protrusion 19 on the outer periphery of the pressing member 5. The annular protrusion 19 is located below the annular limiting ring 18 and cooperates with the annular limiting ring 18 to limit the axial movement range of the pressing member 5 relative to the valve body 1.

[0034] In this structure, the annular limiting ring 18 set inside the top of the valve body 1 forms a mechanical barrier. This built-in design does not affect the simplicity of the appearance, while providing a stable limiting reference. The annular protrusion 19 on the outer periphery of the pressing member 5 forms an axial limiting fit with the limiting ring. When the pressing member 5 moves upward under the action of the elastic reset member 8, the annular protrusion 19 will contact the annular limiting ring 18 above, thereby limiting the maximum upward movement position of the pressing member 5. This effectively prevents the pressing member 5 from detaching from the valve body 1 under the action of strong reset elastic force or accidental pull force. This limiting structure design allows the pressing member 5 to move freely within the limited range, which not only ensures the normal pressing and venting function, but also provides reliable safety protection.

[0035] In this embodiment, a gap is also left between the annular protrusion 19 and the exhaust channel 2. This gap constitutes the main exhaust flow channel. When the pressing member 5 is pressed down to open the seal 7, the gas in the pipeline can rise through the central hole 4 of the sealing seat 3, and then flow upward through the annular gap between the pressing member 5 and the exhaust channel 2, and finally be discharged from the top of the valve body 1. This annular flow channel design ensures that the exhaust cross-sectional area is sufficient, which can quickly and efficiently discharge the accumulated gas in the pipeline. In addition, the appropriate gap eliminates the direct frictional contact between the pressing member 5 and the valve body 1, which greatly reduces the operating resistance and makes the pressing action easier and smoother. Even after long-term use, the operating feel will not be affected by wear.

[0036] In this embodiment, the valve body is made of a transparent material.

[0037] This structure, by using a transparent material to manufacture the valve body 1, adds an intuitive visual monitoring function to the vent valve, significantly improving ease of use and maintenance efficiency. The choice of transparent material allows users and maintenance personnel to directly observe the internal working status of the vent valve. This visualization design brings the following advantages: First, during the venting process, operators can clearly see the process of air bubbles being discharged from the pipeline, accurately judging whether venting is complete, avoiding the uncertainty of traditional opaque vent valves that require experience-based judgment, and effectively preventing water waste caused by insufficient or excessive venting. Second, the transparent valve body 1 can display the working status of key components such as internal seals 7 and springs in real time, facilitating the timely detection of potential faults such as aging of the sealing ring 9, spring fatigue, or jamming of the pusher 6, enabling preventative maintenance and avoiding sudden failures. In addition, in water purifier applications, the transparent material also allows users to observe the water quality, such as whether there are impurities, air bubbles, or abnormal colors, providing intuitive feedback on the overall operating status of the water purifier.

[0038] Transparent materials are usually made of high-strength engineering plastics such as PC (polycarbonate) or PMMA (acrylic). These materials not only have excellent light transmittance and mechanical strength, but also good pressure resistance and chemical stability, which can meet the food-grade safety requirements of water purifiers.

[0039] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A push-to-exhaust valve characterized by: include, Valve body, wherein an exhaust passage is formed inside the valve body; A sealing seat is disposed within the exhaust channel, and the sealing seat has a central hole communicating with the exhaust channel; A pressing element is movably disposed on the top of the valve body; A pusher, the upper end of which is connected to the pressing member, and the lower end of which passes through the central hole of the sealing seat; A sealing element is connected to the lower end portion of the pusher after it passes through the central hole, and the sealing element mates with the lower surface of the sealing seat; An elastic reset member is sleeved on the push member and located between the press member and the sealing seat. The lower end of the elastic reset member is supported on the upper surface of the sealing seat, and the upper end of the elastic reset member acts on the press member.

2. A push-to-exhaust valve according to claim 1, characterized in that: It also includes a sealing ring, which is sleeved on the pusher; the lower end face of the sealing seat is provided with an inwardly and upwardly tapered slope, and the sealing ring is sealed in conjunction with the tapered slope.

3. A push-to-exhaust valve according to claim 1, wherein: It also includes a connector, which is screwed to the upper end of the pusher, and the head of the connector is connected to the pressing member.

4. A push-to-exhaust valve according to claim 3, wherein: The central portion of the pressing member extends downward to form a sleeve. The sleeve is inserted into the exhaust channel and has a gap between it and the inner wall of the exhaust channel. The inner wall of the sleeve is provided with a protruding structure, and the head of the connector rests on the protruding structure.

5. A push-to-exhaust valve according to claim 1, wherein: The lower outer wall of the valve body is provided with an external threaded connection part, and the upper outer wall of the valve body is provided with a knob part, the outer peripheral surface of the knob part is provided with anti-slip texture.

6. A push-to-exhaust valve according to claim 1, wherein: The valve body has an annular limiting ring inside its top, and the pressing member has an annular protrusion on its outer periphery. The annular protrusion is located below the annular limiting ring and cooperates with the annular limiting ring to limit the axial movement range of the pressing member relative to the valve body.

7. A push-to-exhaust valve according to claim 1, wherein: The valve body is made of a transparent material.

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