CN214368038U

CN214368038U - Exhaust valve

Info

Publication number: CN214368038U
Application number: CN202120262725.3U
Authority: CN
Inventors: 童佳
Original assignee: Yuhuan Zhefan Valve Co ltd
Current assignee: Yuhuan Zhefan Valve Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-10-08
Anticipated expiration: 2031-01-30

Abstract

The utility model discloses a vent valve, including valve body and flange, the below welding of valve body has the connecting pipe, and the inside fixedly connected with filter screen of connecting pipe, the flange is located the below of connecting pipe, and the below fixedly connected with of flange is sealed fills up, the inside fixedly connected with pipeline of valve body, and the top swing joint of pipeline has the fixed disk, the top welding of fixed disk has the installation pipe, and the top welding of installation pipe has the safety cover, the left side welding of safety cover has the connection pad, and the inside level of safety cover has installed the breather pipe, the inside welding of breather pipe has the intake pipe, and the inside welding of intake pipe has the U-shaped groove. This discharge valve, simple structure for easy maintenance when discharge valve damages, can convenient to use person to discharge valve, inside part is changed and is maintained, and can clean the inside of device, thereby improves the life-span that the device used, practices thrift the cost of changing simultaneously.

Description

Exhaust valve

Technical Field

The utility model relates to an exhaust valve technical field specifically is an exhaust valve.

Background

The exhaust valve is applied to exhaust of pipelines such as an independent heating system, a centralized heating system, a heating boiler, a central air conditioner, a floor heating system, a solar heating system and the like, when gas overflows from the system, the gas can climb upwards along the pipeline and finally gather at the highest point of the system, the exhaust valve is generally installed at the highest point of the system, when the gas enters a valve cavity of the exhaust valve and gathers at the upper part of the exhaust valve, the pressure rises along with the increase of the gas in the valve, when the gas pressure is greater than the system pressure, the gas can enable the water surface in the cavity to fall, the buoy falls along with the water level, and the exhaust port is opened; after the gas is exhausted, the water level rises, the buoy rises along with the rise of the water level, the exhaust port is closed, and by the same principle, when negative pressure is generated in the system, the water level in the valve cavity descends, and the exhaust port is opened.

Current discharge valve is in the use, when discharge valve damages, and the user of not being convenient for changes discharge valve, inside part and maintains to lead to the increase of replacement cost, and influence the efficiency of equipment work, the user demand of satisfying people that can not be fine, to above-mentioned condition, carries out technical innovation on current discharge valve basis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a discharge valve to propose current discharge valve in solving above-mentioned background art when discharge valve damages, the person of being not convenient for to discharge valve, inside part is changed and is maintained, thereby leads to the increase of replacement cost, and influences the efficiency of equipment work, the user demand problem of satisfying people that can not be fine.

In order to achieve the above object, the utility model provides a following technical scheme: a vent valve comprises a valve body and a flange, wherein a connecting pipe is welded below the valve body, a filter screen is fixedly connected inside the connecting pipe, the flange is positioned below the connecting pipe, a sealing gasket is fixedly connected below the flange, a pipeline is fixedly connected inside the valve body, a fixed disk is movably connected above the pipeline, an installation pipe is welded above the fixed disk, a protective cover is welded above the installation pipe, a connecting disk is welded on the left side of the protective cover, a vent pipe is horizontally arranged inside the protective cover, an air inlet pipe is welded inside the vent pipe, a U-shaped groove is welded inside the air inlet pipe, a sealing block is movably connected inside the U-shaped groove, a sealing strip is fixedly connected below the sealing block, a movable rod is fixedly connected below the sealing strip, a support rod is movably connected at the front end of the movable rod, and a locking nut is movably connected at the front end of the support rod, and the right side welding of branch has the fixed column, the inside swing joint of fixed column has the commentaries on classics cover, and the inside swing joint who changes the cover has the pivot, the right side welding of fixed column has the connecting rod, and the right side welding of connecting rod has the ball seat, the right side fixedly connected with floater of ball seat.

Preferably, the lower surface of the connecting pipe is tightly attached to the upper surface of the flange, and the central axis of the flange coincides with the central axis of the sealing gasket.

Preferably, the protection cover is horizontally arranged on the right side surface of the connecting disc, and the left side surface of the connecting disc is tightly attached to the right side surface of the valve body.

Preferably, the inner surface of the U-shaped groove is tightly attached to the right side surface of the sealing block, and the central axis of the sealing block coincides with the central axis of the sealing strip.

Preferably, the included angle between the movable rod and the support rod is set to be 90 degrees, and the rear surface of the locking nut is tightly attached to the front surface of the support rod.

Preferably, the inner size of the rotating sleeve is matched with the outer size of the rotating shaft, and the outer surface of the rotating sleeve is tightly attached to the inner surface of the fixing column.

Preferably, the connecting rod is arranged on the right side surface of the fixing column in a horizontal shape, and the right side surface of the connecting rod is tightly attached to the left side surface of the ball seat.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the device is connected with equipment through the flange through the matching arrangement among the valve body, the connecting pipe, the flange, the sealing gasket, the protective cover and the connecting disc, when the device works, the sealing gasket plays a role in sealing, so that leakage between the connecting pipe and the equipment is prevented, and meanwhile, when a user needs to clean the inside of the protective cover, the protective cover can be detached from the valve body through the connecting disc, so that the inside of the protective cover is cleaned, and parts are replaced;

2. through the matching arrangement of the U-shaped groove, the sealing block, the sealing strip, the movable rod, the support rod and the locking nut, the sealing block can seal the U-shaped groove under the matching of the sealing block and the U-shaped groove, the sealing strip improves the sealing reliability, meanwhile, the support rod is fixed with the movable rod through the locking nut, and the support rod can ensure the reliability of the stress of the movable rod because the included angle between the support rod and the movable rod is kept at 90 degrees;

3. through the fixed column, change the cover, the pivot, the cooperation setting between connecting rod and the ball seat, under the normal running fit of commentaries on classics cover and pivot for the fixed column can guarantee that the fixed column carries out the rotation of certain angle round the pivot through changeing the cover when the atress, and when the floater on the ball seat received the effort simultaneously, makes the connecting rod drive the fixed column and remove, thereby the sealed and closed state of control seal piece to the intake pipe.

Drawings

FIG. 1 is a schematic view of the front perspective structure of the present invention;

FIG. 2 is a schematic sectional view of the front view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of the top view structure of the present invention.

In the figure: 1. a valve body; 2. a connecting pipe; 3. a filter screen; 4. a flange; 5. a gasket; 6. a pipeline; 7. fixing the disc; 8. installing a pipe; 9. a protective cover; 10. a connecting disc; 11. a breather pipe; 12. an air inlet pipe; 13. a U-shaped groove; 14. a sealing block; 15. a sealing strip; 16. a movable rod; 17. a strut; 18. a lock nut; 19. fixing a column; 20. rotating the sleeve; 21. a rotating shaft; 22. a connecting rod; 23. a ball seat; 24. a floating ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a vent valve comprises a valve body 1 and a flange 4, wherein a connecting pipe 2 is welded below the valve body 1, a filter screen 3 is fixedly connected inside the connecting pipe 2, the flange 4 is positioned below the connecting pipe 2, a sealing gasket 5 is fixedly connected below the flange 4, a pipeline 6 is fixedly connected inside the valve body 1, a fixed disc 7 is movably connected above the pipeline 6, an installation pipe 8 is welded above the fixed disc 7, a protection cover 9 is welded above the installation pipe 8, a connecting disc 10 is welded on the left side of the protection cover 9, a vent pipe 11 is horizontally arranged inside the protection cover 9, an air inlet pipe 12 is welded inside the vent pipe 11, a U-shaped groove 13 is welded inside the air inlet pipe 12, a sealing block 14 is movably connected inside the U-shaped groove 13, a sealing strip 15 is fixedly connected below the sealing block 14, and a movable rod 16 is fixedly connected below the sealing strip 15, and the front end swing joint of activity pole 16 has branch 17, and the front end swing joint of branch 17 has lock nut 18, and the right side welding of branch 17 has fixed column 19, and the inside swing joint of fixed column 19 has commentaries on classics cover 20, and the inside swing joint of commentaries on classics cover 20 has pivot 21, and the right side welding of fixed column 19 has connecting rod 22, and the right side welding of connecting rod 22 has ball seat 23, the right side fixedly connected with floater 24 of ball seat 23.

The utility model discloses in: the lower surface of the connecting pipe 2 is tightly attached to the upper surface of the flange 4, and the central axis of the flange 4 is superposed with the central axis of the sealing gasket 5; so that the device is connected with the equipment through the flange 4, and the sealing gasket 5 plays a sealing role when the device works, thereby preventing leakage between the connecting pipe 2 and the equipment.

The utility model discloses in: the protective cover 9 is horizontally arranged on the right side surface of the connecting disc 10, and the left side surface of the connecting disc 10 is tightly attached to the right side surface of the valve body 1; when a user needs to clean the inside of the protection cover 9, the protection cover 9 can be detached from the valve body 1 through the connecting disc 10, so that the inside of the protection cover 9 can be cleaned, and parts can be replaced.

The utility model discloses in: the inner surface of the U-shaped groove 13 is tightly attached to the right side surface of the sealing block 14, and the central axis of the sealing block 14 is coincided with the central axis of the sealing strip 15; the sealing block 14 can seal the U-shaped groove 13 under the matching of the sealing block 14 and the U-shaped groove 13, and the sealing strip 15 increases the sealing reliability.

The utility model discloses in: the included angle between the movable rod 16 and the support rod 17 is set to be 90 degrees, and the rear surface of the locking nut 18 is tightly attached to the front surface of the support rod 17; the supporting rod 17 is fixed with the movable rod 16 through the locking nut 18, and the included angle between the supporting rod 17 and the movable rod 16 is kept at 90 degrees, so that the supporting rod 17 can ensure the reliability of the stress of the movable rod 16.

The utility model discloses in: the inner size of the rotating sleeve 20 is matched with the outer size of the rotating shaft 21, and the outer surface of the rotating sleeve 20 is tightly attached to the inner surface of the fixed column 19; under the rotation cooperation of the rotating sleeve 20 and the rotating shaft 21, when the fixed column 19 is stressed, the fixed column 19 can be ensured to rotate around the rotating shaft 21 by a certain angle through the rotating sleeve 20.

The utility model discloses in: the connecting rod 22 is horizontally arranged on the right side surface of the fixing column 19, and the right side surface of the connecting rod 22 is tightly attached to the left side surface of the ball seat 23; when the floating ball 24 on the ball seat 23 is acted, the connecting rod 22 drives the fixed column 19 to move, thereby controlling the sealing and closing state of the sealing block 14 on the air inlet pipe 12.

The working principle of the exhaust valve is as follows: firstly, when the device is connected with equipment through the flange 4, when the device works, when the gas pressure rises, the gas pressure is gradually greater than the system pressure, so that the gas can lower the water surface in the protective cover 9;

secondly, the floating ball 24 moves downwards under the action of weight, the ball seat 23 pushes the fixed column 19 through the connecting rod 22, so that the fixed column 19 rotates for a certain angle along the rotating shaft 21 through the rotating sleeve 20, the fixed column 19 pushes the supporting rod 17, the supporting rod 17 pushes the sealing block 14 upwards through the movable rod 16, and a gap is formed between the sealing strip 15 below the sealing block 14 and the U-shaped groove 13; secondly, the gas enters the interior of the vent pipe 11 through the gas inlet pipe 12; then, the air pipe 11 flows to the exhaust hole and is exhausted to the outside of the valve body 1, after the gas is exhausted, the liquid flows to the inside of the pipeline 6 through the filter screen 3, the liquid in the pipeline 6 flows into the protective cover 9 through the installation pipe 8, so that the floating ball 24 rises along with the liquid, and the air inlet pipe 12 is in a closed state;

and finally, when a user needs to replace parts in the protective cover 9, the connecting disc 10 is detached from the valve body 1 through a bolt, and the protective cover 9 is taken down, so that the parts are maintained and replaced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An exhaust valve, includes valve body (1) and flange (4), its characterized in that: the connecting pipe (2) is welded below the valve body (1), the filter screen (3) is fixedly connected inside the connecting pipe (2), the flange (4) is located below the connecting pipe (2), the sealing gasket (5) is fixedly connected below the flange (4), the pipeline (6) is fixedly connected inside the valve body (1), the fixed disk (7) is movably connected above the pipeline (6), the installation pipe (8) is welded above the fixed disk (7), the protection cover (9) is welded above the installation pipe (8), the connection disk (10) is welded on the left side of the protection cover (9), the ventilation pipe (11) is horizontally arranged inside the protection cover (9), the air inlet pipe (12) is welded inside the ventilation pipe (11), the U-shaped groove (13) is welded inside the air inlet pipe (12), the sealing block (14) is movably connected inside the U-shaped groove (13), and below fixedly connected with sealing strip (15) of sealing block (14), below fixedly connected with movable rod (16) of sealing strip (15), and the front end swing joint of movable rod (16) has branch (17), the front end swing joint of branch (17) has lock nut (18), and the right side welding of branch (17) has fixed column (19), the inside swing joint of fixed column (19) has commentaries on classics cover (20), and the inside swing joint who changes cover (20) has pivot (21), the right side welding of fixed column (19) has connecting rod (22), and the right side welding of connecting rod (22) has ball seat (23), the right side fixedly connected with floater (24) of ball seat (23).

2. A vent valve according to claim 1, wherein: the lower surface of the connecting pipe (2) is tightly attached to the upper surface of the flange (4), and the central axis of the flange (4) coincides with the central axis of the sealing gasket (5).

3. A vent valve according to claim 1, wherein: the protective cover (9) is horizontally arranged on the right side surface of the connecting disc (10), and the left side surface of the connecting disc (10) is tightly attached to the right side surface of the valve body (1).

4. A vent valve according to claim 1, wherein: the inner surface of the U-shaped groove (13) is tightly attached to the right side surface of the sealing block (14), and the central axis of the sealing block (14) coincides with the central axis of the sealing strip (15).

5. A vent valve according to claim 1, wherein: the included angle between the movable rod (16) and the support rod (17) is set to be 90 degrees, and the rear surface of the locking nut (18) is tightly attached to the front surface of the support rod (17).

6. A vent valve according to claim 1, wherein: the inner size of the rotating sleeve (20) is matched with the outer size of the rotating shaft (21), and the outer surface of the rotating sleeve (20) is tightly attached to the inner surface of the fixing column (19).

7. A vent valve according to claim 1, wherein: the connecting rod (22) is horizontally arranged on the right side surface of the fixing column (19), and the right side surface of the connecting rod (22) is tightly attached to the left side surface of the ball seat (23).