Exhaust valve with filtering function

Abstract

The exhaust valve with the filtering function comprises an exhaust valve body, the exhaust valve body comprises a shell, a water inlet is formed in the bottom of the shell, an exhaust port is formed in the top of the shell, a floating block is arranged in the shell, and a suspension beam structure is arranged at the upper end of the floating block. The exhaust port is sequentially provided with a spring, a sealing gasket seat, a sealing gasket and an air outlet screw rod from inside to outside, the inner end of the spring extends into the shell, and the spring is in suspension connection with the upper end part of the floating block; an upper cover is further arranged at the top of the shell, the upper cover is a detachable sealing cover, the bottom of the upper cover is an opening, the upper cover and threads on the outer side of the shell form sealing, and the exhaust port is formed in one side of the upper cover; a plurality of filtering holes are formed in the bottom of the inner cavity wall of the shell, and the filtering holes and the shell are integrally formed and machined. According to the utility model, the filter holes are integrally formed in the shell, and the filter holes are used for blocking and filtering the water inlet.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valves, specifically to an exhaust valve with a filtering function. Background Technology

[0002] During the operation of HVAC and liquid-cooled piping systems, dissolved air in the medium water gradually separates from the water as the temperature rises, forming bubbles. When too much gas accumulates from these bubbles, it can affect the normal operation of the piping system. Air vents, which utilize buoyancy as their opening and closing mechanism, are typically installed at the highest point or bend in the piping system. They remove excess gas, ensuring the normal operation of the piping system, improving its efficiency, and reducing energy consumption. Currently, common buoyancy-operated air vents often use medium water containing particulate impurities. These impurities enter the air vent's outlet through the piping system, becoming lodged between the outlet and the sealing gasket. This causes the air vent to lose its water-tight function, reducing its performance and affecting its normal use. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides an exhaust valve with a filtering function to solve the problems of at least one of the above-mentioned technologies.

[0004] The technical solution of this utility model is: an exhaust valve with a filtering function, comprising an exhaust valve body, characterized in that the exhaust valve body includes a shell, the bottom of the shell is provided with a water inlet, the top of the shell is provided with an exhaust port, a float is provided inside the shell, the upper end of the float is provided with a suspension beam structure, and the exhaust port is provided with a spring, a sealing gasket, a sealing gasket and an exhaust port screw in sequence from the inside to the outside, the inner end of the spring extends into the shell, and the spring and the upper end of the float form a suspension connection;

[0005] The top of the housing is also provided with an upper cover, which is a removable sealing cover. The bottom of the upper cover is open, and the upper cover is sealed with the outer thread of the housing. The vent is located on one side of the upper cover.

[0006] The bottom of the inner wall of the housing is provided with multiple filter holes, which are integrally formed with the housing.

[0007] This utility model incorporates a filter hole integrally formed into the housing, which blocks the water inlet. Compared to traditional air vents, it filters out particulate impurities often found in the medium water, preventing these impurities from entering the air vent through the pipeline system and getting stuck between the air vent and the sealing gasket, thus preventing the air vent from losing its water-sealing function. This improves the performance of the air vent and ensures its normal operation.

[0008] In a further preferred embodiment, the sealing gasket, the sealing pad, and the vent screw are each connected to the spring. When the float descends, it is suspended from the upper end, overcoming the spring's elastic force and tilting, thereby causing the sealing gasket and sealing pad to open the vent. When the float rises, the spring resets, pushing the sealing gasket and sealing pad to close the vent.

[0009] Further preferably, the outer contour of the float is cylindrical, and a gap is provided between the outer wall of the float and the inner wall of the shell.

[0010] This allows for convenient liquid flow.

[0011] Further preferably, a housing sealing ring is provided at the connection between the housing and the top cover, and an O-ring is fitted at the water inlet of the housing.

[0012] This ensures a tight seal on both the top and bottom sides.

[0013] Further preferably, the air outlet is provided with an air outlet sealing ring.

[0014] This ensures the air outlet is sealed.

[0015] Further preferably, an outlet sealing cover is fitted on the outer side of the outlet screw, and an outlet cover sealing ring is provided at the connection between the outlet screw and the outlet sealing cover.

[0016] This ensures a tight seal between the air outlet sealing cap and the air outlet screw. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is a sectional view of the water inlet and air outlet of this utility model;

[0019] Figure 3 A cross-sectional view of the housing of this utility model showing multiple filter holes.

[0020] Figure 4 This is a top view of the housing of this utility model, which has multiple filter holes inside.

[0021] In the diagram: 1. O-ring seal, 2. Housing, 3. Housing seal ring, 4. Float, 5. Top cover, 6. Air outlet seal ring, 7. Spring, 8. Sealing gasket, 9. Sealing gasket, 10. Air outlet screw, 11. Air outlet cover seal ring, 12. Air outlet sealing cover, 13. Water inlet, 14. Exhaust outlet, 15. Filter hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, an exhaust valve with a filtering function includes an exhaust valve body, which includes a housing 2. The bottom of the housing has an inlet 13, and the top of the housing has an exhaust port 14. A float 4 is provided inside the housing, and the upper end of the float has a suspension beam structure. The exhaust port is provided with a spring 7, a sealing gasket 8, a sealing gasket 9, and an exhaust screw 10 from the inside to the outside. The inner end of the spring extends into the housing, and the spring and the upper end of the float form a suspension connection. The top of the housing is also provided with an upper cover 5, which is a removable sealing cover. The bottom of the upper cover is open, and the upper cover and the outer side of the housing are sealed by threads. The exhaust port is located on one side of the upper cover. The bottom of the inner wall of the housing is provided with multiple filter holes 15, which are integrally formed with the housing.

[0024] This utility model incorporates a filter hole integrally formed into the housing, which blocks the water inlet. Compared to traditional air vents, it filters out particulate impurities often found in the medium water, preventing these impurities from entering the air vent through the pipeline system and getting stuck between the air vent and the sealing gasket, thus preventing the air vent from losing its water-sealing function. This improves the performance of the air vent and ensures its normal operation.

[0025] In a further optimized configuration, the sealing gasket, sealing pad, and vent screw are each connected to a spring. When the float descends, it is suspended from the top, overcoming the spring's elastic force and tilting, thereby causing the sealing gasket and sealing pad to open the vent. When the float rises, the spring returns to its original position, pushing the sealing gasket and sealing pad to close the vent.

[0026] Further preferably, the float has a cylindrical outer contour, and a gap is provided between the outer wall of the float and the inner wall of the shell. This facilitates liquid flow.

[0027] Further optimized, a housing sealing ring 3 is provided at the connection between the housing and the top cover, and an O-ring sealing ring 1 is fitted at the water inlet of the housing. This ensures the sealing performance of both the upper and lower sides.

[0028] Further optimization involves providing an outlet sealing ring 6 on the outlet. This ensures the air outlet is airtight.

[0029] Further optimized, an outlet sealing cap 12 is fitted onto the outer side of the outlet screw, and an outlet cap sealing ring 11 is provided at the connection between the outlet screw and the outlet sealing cap. This ensures the airtightness between the outlet sealing cap and the outlet screw.

[0030] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An exhaust valve with a filter function comprising an exhaust valve main body, characterized by, The exhaust valve body comprises a shell, the bottom of the shell is provided with a water inlet, the top of the shell is provided with an exhaust port, a float is arranged in the shell, the upper end of the float is provided with a suspension beam structure, the exhaust port is sequentially provided with a spring, a sealing pad seat, a sealing pad and an air outlet screw rod from inside to outside, the inner end of the spring extends into the shell, and the spring is in suspension connection with the upper end of the float; The top of the shell is further provided with an upper cover, the upper cover is a detachable sealing cover, the bottom of the upper cover is an open port, and the upper cover is in sealing thread connection with the outer side of the shell, and the exhaust port is arranged on one side of the upper cover; The inner cavity wall bottom of the shell is provided with a plurality of filter holes, and the filter holes are integrally formed with the shell.

2. The vent valve with filtration function according to claim 1, characterized in that: The sealing pad seat, the sealing pad and the air outlet screw rod are respectively connected with the spring.

3. The vent valve with filtration function according to claim 1, characterized in that: The outer contour of the float is in a cylindrical shape, and a gap is arranged between the outer wall of the float and the inner cavity wall of the shell.

4. The vent valve with filtration function according to claim 1, characterized in that: A shell sealing ring is arranged at the connection between the shell and the upper cover, and an O-shaped sealing ring is arranged at the water inlet of the shell.

5. The vent valve with filtration function according to claim 1, characterized in that: An air outlet sealing ring is arranged on the air outlet.

6. The vent valve with filtration function according to claim 1, characterized in that: An air outlet sealing cover is arranged on the outer side of the air outlet screw rod, and an air outlet cover sealing ring is arranged at the connection between the air outlet screw rod and the air outlet sealing cover.

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