A composite exhaust valve

Abstract

The utility model relates to valve technical field discloses a composite exhaust valve, including valve body and connecting pipe, still include sliding ball, anti -collision subassembly and one -way subassembly, the connecting frame in anti -collision subassembly is fixed in the valve body inner wall, the limit sliding post is connected connecting frame and extends downward, sliding ball sliding connection is in the limit sliding post outer wall, soft support column is equipped in sliding ball top, the soft type sealing washer is equipped in sliding ball below, one -way subassembly is equipped in the valve body top, fixed sliding post is connected between connecting frame and roof, sliding plate and spring damper cover are equipped in fixed sliding post. The utility model discloses through anti -collision subassembly limit sliding ball track and provide two -way buffer of up and down, avoided the damage of float ball impact valve body when the air pressure violent fluctuation, simultaneously utilize one -way subassembly to realize automatic exhaust and reset seal, cooperate filter screen effectively prevent the impurity and enter, solved the problem that the exhaust valve is vulnerable to impact damage and sealing failure in the prior art, improved the stability and life of exhaust valve.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a composite exhaust valve. Background Technology

[0002] Air vents are essential auxiliary components in pipeline systems, primarily used to remove accumulated gas during liquid transport to ensure pipeline efficiency and safety. In traditional air vent designs, a float ball is typically used to control the opening and closing of the vent port based on changes in liquid level or gas pressure.

[0003] However, in actual industrial applications, the air pressure inside pipelines is often very unstable, especially at the beginning of water supply or when water hammer occurs, resulting in violent airflow fluctuations inside the pipeline. These violent airflow fluctuations give the internal float a great deal of kinetic energy, causing it to move erratically and wildly within the valve body. Due to the lack of effective limiting and buffering structures, the high-speed moving float is prone to violently impacting the sealing mechanism on the inner wall or top of the valve body. Over time, this not only leads to wear and cracking of the float surface but also damages the precision components inside the valve body, severely affecting the sealing performance and service life of the exhaust valve.

[0004] Therefore, this utility model proposes a composite exhaust valve to address the shortcomings of the prior art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a composite exhaust valve, which aims to improve the problem that the conventional exhaust valve's internal float structure lacks an effective limiting and buffering mechanism when dealing with drastic air pressure fluctuations, and is prone to damage to internal valve components and short service life due to large impacts.

[0006] To achieve the above objectives, this utility model provides a composite exhaust valve, comprising: a valve body, and a connecting pipe fixedly connected to the bottom end of the valve body, and further comprising a sliding ball disposed inside the valve body, an anti-collision component, and a one-way component disposed at the top end of the valve body.

[0007] The anti-collision component includes a soft sealing gasket, a soft support column, a limiting sliding column, a sealing ring, and a connecting frame.

[0008] The connecting frame is horizontally fixed to the inner wall of the valve body. One end of the limiting sliding column is fixedly connected to the connecting frame, and the other end of the limiting sliding column extends vertically downward. The sliding ball is slidably connected to the outer wall of the limiting sliding column. The flexible support column is fixedly connected to the top of the sliding ball. The flexible sealing gasket is fixedly connected to the bottom of the inner wall of the valve body, and the flexible sealing gasket is located below the sliding ball.

[0009] Preferably, the unidirectional component includes a sliding plate, a fixed sliding column, a spring damper, a top plate, and a filter screen. The top plate is fixedly connected to the top of the valve body, one end of the fixed sliding column is fixedly connected to the top of the connecting frame, and the other end of the fixed sliding column is fixedly connected to the inner wall of the top plate.

[0010] Preferably, the sliding plate is slidably connected to the outer wall of the fixed sliding column, the spring damper is sleeved on the outer wall of the fixed sliding column, and the two ends of the spring damper respectively abut against the sliding plate and the top plate.

[0011] Preferably, a vent hole is provided at the center of the top plate, and the filter screen is fixedly installed in the vent hole to filter the gas entering and exiting the valve body.

[0012] Preferably, the sliding plate is located above the connecting frame and below the spring damper, and the sliding plate is configured to slide upward along the fixed sliding column and compress the spring damper when subjected to an upward air pressure thrust.

[0013] Preferably, the sealing ring is fixedly connected to the inside of the connecting frame, the limiting sliding post passes through the sealing ring and extends into the inside of the sliding ball, and the sliding ball reciprocates along the axial direction of the limiting sliding post.

[0014] Preferably, the top surface of the soft sealing gasket is provided with an arc-shaped groove that matches the shape of the bottom of the sliding ball. When the internal air pressure of the valve body is normal, the sliding ball is supported on the soft sealing gasket.

[0015] Preferably, it also includes a pressure gauge, which is fixedly connected to the outer wall of the top of the valve body, and the sensing probe of the pressure gauge extends through the outer wall of the valve body into the interior of the valve body.

[0016] Preferably, the flexible support column is made of rubber or silicone, and the connecting frame is a hollow structure for airflow.

[0017] Preferably, a sealing gasket is provided at the connection between the top plate and the valve body, and the connection is fixed by bolts.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting an anti-collision component inside the valve body, the limiting sliding column fixed by the connecting frame restricts the movement trajectory of the sliding ball. Combined with the soft support column at the top of the sliding ball and the soft sealing gasket at the bottom, the problem of the float ball inside the existing exhaust valve easily impacting the valve body due to large-scale disorderly sliding when the air pressure fluctuates violently is solved, resulting in damage to the internal structure. The technical effects of effectively buffering the impact force, regulating the movement trajectory of the float ball, and extending the service life of the exhaust valve are achieved.

[0019] 2. This utility model, by setting a one-way component at the top of the valve body, uses the air pressure difference to drive the sliding plate to slide along the fixed sliding column to compress the spring damper to open the exhaust port, and uses the spring rebound to reset and close when the air pressure is restored. With the filter screen in the top plate, it solves the problem that the existing exhaust valve is easily invaded by external impurities when the exhaust port is open, causing sealing failure. It achieves the technical effect of only venting and not venting, automatically resetting the seal and effectively filtering impurities. Attached Figure Description

[0020] Figure 1 This is a perspective view of a composite exhaust valve proposed in this utility model; Figure 2 A schematic diagram of the connecting pipe of a composite exhaust valve proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the air pressure representation of a composite exhaust valve proposed in this utility model.

[0021] Legend: 1. Valve body; 2. Connecting pipe; 3. Pressure gauge; 4. Sliding ball; 5. Anti-collision assembly; 501. Soft sealing gasket; 502. Soft support column; 503. Limiting sliding column; 504. Sealing ring; 505. Connecting frame; 6. One-way assembly; 601. Sliding plate; 602. Fixed sliding column; 603. Spring damper; 604. Top plate; 605. Filter screen. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-4 This utility model provides a composite exhaust valve, which aims to solve the structural defects in the prior art where the float structure inside the exhaust valve is prone to large-scale disorderly sliding and impacting the valve body when the air pressure fluctuates drastically, causing damage to the internal precision structure, and external impurities are prone to intrusion when the exhaust port of the valve body is opened, causing sealing component failure or pipeline blockage.

[0024] The main structure of the composite exhaust valve includes a hollow valve body 1 and a connecting pipe 2 fixedly connected to the bottom of the valve body 1. The valve body 1 serves as the core mounting base and housing of the entire device, providing a sealed and stable operating space for the internal components. The connecting pipe 2 is used to connect and dock with the external pipeline system, guiding the gas to be treated into the internal chamber of the valve body 1.

[0025] Based on this, the interior of the composite exhaust valve is also precisely arranged with multiple functional components, including a sliding ball 4 located inside the valve body 1 that can move with changes in air pressure, an anti-collision component 5 located inside the valve body 1 and forming a protective system around the sliding ball 4, and a one-way component 6 located at the top of the valve body 1 for controlling the one-way opening and closing of the top exhaust port. The sliding ball 4, as the core moving part for air pressure sensing and liquid level control, can float up and down inside the valve body 1. The anti-collision component 5 provides precise trajectory guidance for the movement of the sliding ball 4 and provides two-way anti-collision protection through a combination of flexible buffering and rigid limiting. The one-way component 6, together with the anti-collision component 5, forms a breathable barrier at the top, allowing the internal high-pressure gas to be discharged while effectively blocking the entry of external dust and impurities, thereby ensuring the long-term stable operation of the entire exhaust valve under complex working conditions.

[0026] The anti-collision component 5, as the lower core mechanism, includes a soft sealing gasket 501, a soft support column 502, a limiting sliding column 503, a sealing ring 504, and a connecting frame 505. The connecting frame 505 is horizontally fixed to the middle of the inner wall of the valve body 1 by welding or bolting. The connecting frame 505, as the internal load-bearing and positioning skeleton, divides the interior of the valve body 1 into upper and lower functional areas. One end of the limiting sliding column 503 is fixedly connected to the geometric center of the bottom surface of the connecting frame 505, and the other end of the limiting sliding column 503 extends vertically downward to the bottom area of ​​the valve body 1, providing a vertical guide rail for the sliding ball 4. The sliding ball 4 is slidably connected to the outer wall of the limiting sliding column 503 by clearance fit, so that the sliding ball 4 can make smooth vertical up and down movement along the axis of the limiting sliding column 503 without radial offset or overturning. The presence of the limiting sliding column 503 effectively limits the disorderly shaking of the sliding ball 4 under the impact of airflow.

[0027] Meanwhile, the flexible support column 502 is fixedly connected to the top surface of the sliding ball 4. As a soft contact point for the upward movement, the flexible support column 502 can preferentially contact the upper structure when the sliding ball 4 rises rapidly. The flexible sealing gasket 501 is fixedly connected to the bottom surface of the inner wall of the valve body 1, and the flexible sealing gasket 501 is precisely located directly below the sliding ball 4. When the sliding ball 4 falls back due to gravity or when the air pressure is balanced, the flexible sealing gasket 501 provides flexible support and buffer for the bottom of the sliding ball 4, preventing the ball from directly hitting the metal base.

[0028] The one-way component 6 serves as the upper control mechanism and includes a sliding plate 601, a fixed sliding column 602, a spring damper 603, a top plate 604, and a filter screen 605. The top plate 604 is fixedly connected to the top opening of the valve body 1 by a bolt assembly, sealing and closing the upper part of the valve body 1. One end of the fixed sliding column 602 is fixedly connected to the top center of the connecting frame 505, and the other end of the fixed sliding column 602 extends upward and is fixedly connected to the center of the inner wall of the top plate 604. The fixed sliding column 602 and the lower limiting sliding column 503 are spatially aligned. The valve body 1 is coaxially arranged to form a stable guide column system that runs through the central axis. The sliding plate 601 is slidably connected to the outer wall of the fixed sliding column 602 and can move up and down along the fixed sliding column 602. The spring damper 603 is sleeved on the outer wall of the fixed sliding column 602, and the two ends of the spring damper 603 abut against the upper surface of the sliding plate 601 and the lower surface of the top plate 604, respectively. When no external force is applied, the spring damper 603 uses its own elastic restoring force to press the sliding plate 601 downward, thereby maintaining the normally closed state of the exhaust channel.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions to further improve the product's sealing performance, durability, and ease of operation: In a preferred embodiment, to ensure the sealing reliability and anti-collision safety of the sliding ball 4 at its extreme floating position, the sealing ring 504 is embedded and fixedly connected to the internal center hole of the connecting frame 505. The limiting sliding post 503 passes through the center hole of the sealing ring 504 and extends downward into the interior of the sliding ball 4. The sliding ball 4 reciprocates along the axial direction of the limiting sliding post 503. When the air pressure inside the valve body 1 suddenly increases and pushes the sliding ball 4 upward to its extreme position, the soft support post 502 at the top of the sliding ball 4 will first abut against the bottom surface of the connecting frame 505 or the bottom surface of the sealing ring 504. The elastic deformation of the soft support post 502 absorbs the impact energy, preventing the hard shell of the sliding ball 4 from directly impacting the metal surface of the connecting frame 505. At the same time, the sealing ring 504 and the upper surface of the sliding ball 4 cooperate to form an auxiliary sealing structure to prevent liquid from accidentally spraying out.

[0030] As another preferred embodiment, in order to improve the stability of the sliding ball 4 after reset and reduce wear, the top surface of the soft sealing gasket 501 is provided with an arc-shaped groove that matches the radius of curvature of the bottom ball of the sliding ball 4. When the internal air pressure of the valve body 1 returns to normal and causes the sliding ball 4 to fall back, the sliding ball 4 can sit stably and be supported in the arc-shaped groove of the soft sealing gasket 501. This surface contact structure not only increases the contact area and disperses the impact stress, but also uses the limiting effect of the groove to prevent the ball from undergoing slight rolling friction at the bottom, thereby extending the service life of the sliding ball 4.

[0031] As a preferred embodiment, in order to achieve efficient filtration and protection of the exhaust port, a vent hole for gas discharge is provided at the geometric center of the top plate 604. The filter screen 605 is fixedly installed in the vent hole by snap-fit ​​or adhesive. The filter screen 605 is made of fine metal wire mesh or polymer filter material and is used to filter the gas entering and exiting the valve body 1. It effectively prevents impurities such as dust, insects, and flying fluff from the external environment from entering the valve body 1 and avoids impurities from adhering to the fixed sliding column 602 or sliding plate 601 and affecting the sensitivity of the one-way component 6.

[0032] In a preferred embodiment, to achieve precise automatic venting, the sliding plate 601 is positioned above the connecting bracket 505 and below the spring damper 603. The sliding plate 601 is configured to overcome the resistance of the spring damper 603 and slide upward along the fixed sliding column 602 when subjected to an upward air pressure thrust from inside the valve body 1, thus compressing the spring damper 603. At this time, the sliding plate 601 disengages from its original sealed position, opens the venting passage, and the gas passes through the gap in the connecting bracket 505 and is then discharged to the outside through the filter screen 605. When the air pressure decreases, the spring damper 603 pushes the sliding plate 601 to reset and close.

[0033] As a preferred embodiment, in order to facilitate the real-time monitoring of the working status inside the valve body 1 by the staff, the composite exhaust valve also includes a pressure gauge 3. The pressure gauge 3 is fixedly connected to one side of the outer wall at the top of the valve body 1 through a threaded interface, and the sensing probe of the pressure gauge 3 extends through the outer wall of the valve body 1 into the internal cavity of the valve body 1, for real-time detection and display of the pressure value inside the valve body 1, so as to detect pressure abnormalities in a timely manner.

[0034] As a preferred embodiment, in order to enhance the durability and functionality of the buffer component, the flexible support column 502 is preferably made of corrosion-resistant rubber or silicone material, which has excellent elastic recovery properties and chemical corrosion resistance. At the same time, the connecting frame 505 is a hollow structure for airflow, such as a cross-shaped, radial rib, or porous disc structure. This structure not only ensures strong support for the fixed sliding column 602, but also ensures that the gas can smoothly pass through the gaps of the connecting frame 505 and act on the sliding plate 601 above, preventing air resistance.

[0035] As a preferred embodiment, in order to facilitate on-site installation and maintenance and ensure the sealing of the connection, a rubber sealing gasket is clamped at the connection end face of the top plate 604 and the valve body 1, and is fastened by multiple bolts distributed around the circumference to ensure no air leakage under high pressure. The free end of the connecting pipe 2 is provided with a standard flange or threaded interface for detachable and firm connection with the external industrial piping system to adapt to different installation environments.

[0036] Working principle: The bottom of the valve body 1 of this composite exhaust valve is fixedly connected to the connecting pipe 2 and the pipeline. A pressure gauge 3 is set at the top of the valve body 1 to facilitate the staff to observe the changes in air pressure inside the valve body 1. The anti-collision component 5 set inside the valve body 1 can prevent the sliding ball 4 from sliding too much and hitting the inside of the valve body 1 due to a sudden increase in air pressure, thus preventing damage. Under the action of the one-way component 6, it can effectively filter and prevent impurities from contaminating the inside of the valve body 1.

[0037] When the sliding ball 4 slides inside the valve body 1 due to air pressure changes, a sealing ring 504 is provided at the top of the sliding ball 4, and a limiting sliding post 503 is provided inside the sliding ball 4 and the sealing ring 504. The sliding ball 4 can slide along the outer wall of the limiting sliding post 503 to ensure the stability of the sliding ball 4. The sealing ring 504 is connected to the inner wall of the valve body 1 through the connecting bracket 505 to prevent misalignment. A soft support post 502 is provided at the top of the sliding ball 4. When the sliding ball 4 suddenly slides upwards at a large angle, the soft support post 502 has great elasticity and can block the sliding of the sliding ball 4, reduce the sliding speed of the sliding ball 4, and prevent the sliding amplitude from being too large at once, causing the sliding ball 4 to hit the inner wall of the valve body 1. A soft sealing gasket 501 is fixedly connected to the inner wall of the valve body 1. When the air pressure inside the valve body 1 returns to normal, the sliding ball 4 will return to the bottom. The soft sealing gasket 501 plays a supporting and protective role for the sliding ball 4, which can not only effectively seal, but also avoid contact between the sliding ball 4 and the valve body 1, thus preventing scratches.

[0038] A fixed sliding column 602 is fixedly connected to the top of the connecting frame 505. The other end of the fixed sliding column 602 is fixedly connected to the inner wall of the top plate 604. The top plate 604 is fixed to the top of the valve body 1. A filter screen 605 is provided inside the top plate 604. A sliding plate 601 is slidably connected to the outer wall of the fixed sliding column 602. A spring damper 603 is provided at the top of the fixed sliding column 602. The spring damper 603 is sleeved on the outer wall of the fixed sliding column 602. When gas is pushed out of the valve body 1, the change in air pressure will push the sliding plate 601 upward along the outer wall of the fixed sliding column 602, thereby opening the valve body 1 and compressing the spring damper 603. When the air pressure inside the valve body 1 returns to normal, the sliding plate 601 is reset under the rebound action of the spring damper 603, thereby closing the opening of the valve body 1. This achieves the goal that when the valve body 1 is not in use, external gas will not flow into the valve body 1.

Claims

1. A composite exhaust valve, comprising: Valve body (1) and connecting pipe (2) fixedly connected to the bottom end of valve body (1); The feature is that it also includes a sliding ball (4) disposed inside the valve body (1), an anti-collision component (5), and a one-way component (6) disposed at the top of the valve body (1). The anti-collision component (5) includes a soft sealing gasket (501), a soft support column (502), a limiting sliding column (503), a sealing ring (504), and a connecting frame (505). The connecting frame (505) is horizontally fixed to the inner wall of the valve body (1). One end of the limiting sliding column (503) is fixedly connected to the connecting frame (505), and the other end of the limiting sliding column (503) extends vertically downward. The sliding ball (4) is slidably connected to the outer wall of the limiting sliding column (503). The soft support column (502) is fixedly connected to the top of the sliding ball (4). The soft sealing gasket (501) is fixedly connected to the bottom of the inner wall of the valve body (1), and the soft sealing gasket (501) is located below the sliding ball (4).

2. The composite exhaust valve according to claim 1, characterized in that, The one-way component (6) includes a sliding plate (601), a fixed sliding column (602), a spring damper (603), a top plate (604), and a filter screen (605). The top plate (604) is fixedly connected to the top of the valve body (1). One end of the fixed sliding column (602) is fixedly connected to the top of the connecting frame (505), and the other end of the fixed sliding column (602) is fixedly connected to the inner wall of the top plate (604).

3. The composite exhaust valve according to claim 2, characterized in that, The sliding plate (601) is slidably connected to the outer wall of the fixed sliding column (602), the spring damper (603) is sleeved on the outer wall of the fixed sliding column (602), and the two ends of the spring damper (603) abut against the sliding plate (601) and the top plate (604) respectively.

4. The composite exhaust valve according to claim 2, characterized in that, A vent hole is provided at the center of the top plate (604), and the filter screen (605) is fixedly installed in the vent hole to filter the gas entering and exiting the valve body (1).

5. The composite exhaust valve according to claim 3, characterized in that, The sliding plate (601) is located above the connecting frame (505) and below the spring damper (603). The sliding plate (601) is configured to slide upward along the fixed sliding column (602) and compress the spring damper (603) when subjected to an upward air pressure thrust.

6. The composite exhaust valve according to claim 1, characterized in that, The sealing ring (504) is fixedly connected to the inside of the connecting frame (505). The limiting sliding post (503) passes through the sealing ring (504) and extends into the inside of the sliding ball (4). The sliding ball (4) reciprocates along the axial direction of the limiting sliding post (503).

7. The composite exhaust valve according to claim 1, characterized in that, The top surface of the soft sealing gasket (501) is provided with an arc-shaped groove that matches the bottom shape of the sliding ball (4). When the internal air pressure of the valve body (1) is normal, the sliding ball (4) is supported on the soft sealing gasket (501).

8. The composite exhaust valve according to claim 1, characterized in that, The composite exhaust valve also includes a pressure gauge (3), which is fixedly connected to the outer wall of the top of the valve body (1), and the sensing probe of the pressure gauge (3) extends through the outer wall of the valve body (1) to the interior of the valve body (1).

9. The composite exhaust valve according to claim 1, characterized in that, The flexible support column (502) is made of rubber or silicone, and the connecting frame (505) is a hollow structure for airflow.

10. The composite exhaust valve according to claim 2, characterized in that, A sealing gasket is provided at the connection between the top plate (604) and the valve body (1), and the connection is fixed by bolts.

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