CN213598652U

CN213598652U - Trace exhaust valve with high sealing performance

Info

Publication number: CN213598652U
Application number: CN202021582852.3U
Authority: CN
Inventors: 叶嘉添
Original assignee: Zhejiang Huayun Fluid Technology Co ltd
Current assignee: Zhejiang Huayun Fluid Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-07-02
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a micro exhaust valve with high leakproofness, the water control valve comprises a valve body, the fixed first mounting hole of having seted up of valve body lower extreme, the fixed filter screen that is provided with in first mounting hole upper end, the fixed valve gap that is provided with in valve body upper end, a plurality of bolt holes have all been fixed to have seted up with the valve body avris to the valve gap, the inside fixed fastening bolt that is provided with of a plurality of bolt holes, the valve gap passes through fastening bolt fixed connection with the valve body, two lever framves of valve gap lower extreme fixedly connected with, fixedly connected with mounting panel between two lever frame upper ends, two second mounting holes have been seted up to the inside fixed of mounting. The utility model discloses a micro exhaust valve with high leakproofness guarantees the high leakproofness of device, makes the device use safelyr, can also filter the impurity in the pipeline liquid, avoids inside the impurity entering valve body in the pipeline liquid, causes the harm to the valve body, and the device gas tightness is very high, is worth promoting.

Description

Trace exhaust valve with high sealing performance

Technical Field

The utility model relates to the technical field of valves, especially, relate to a micro exhaust valve with high leakproofness.

Background

The exhaust valve is an essential auxiliary element in a pipeline system, is widely applied to fire fighting, boilers, air conditioners, petroleum and natural gas and water supply and drainage pipelines, is often installed at a high-point or an elbow and the like, eliminates redundant gas generated in the pipeline, improves the use efficiency of the pipeline and reduces energy consumption, meanwhile, when the pipeline is powered off and stops pumping during operation, negative pressure can occur to cause the pipeline to shake or break, and the exhaust and intake valves can rapidly suck air into the pipeline at the moment to prevent the pipeline from shaking and breaking, thereby playing a role in protection.

The end surfaces of the upper valve cover and the lower valve cover of the existing exhaust valves are planar and are connected by fasteners, so that abrasion is easy to occur, the air tightness of the exhaust valves is poor, the sealing effect of joints is poor, the phenomenon of air leakage is easy to occur, the use is influenced, the service life is shortened, the serious scaling phenomenon also exists, particularly in northern areas of China, the water quality is alkaline, the hardness is high, the scaling phenomenon is more serious, the adhesion force of scales is strong and difficult to remove, the opening and closing action and the sealing of a micro exhaust valve are finally influenced, the outward leakage of the valve is caused, and the functional failure of the valve can be caused seriously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a micro exhaust valve with high sealing performance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a micro exhaust valve with high sealing performance comprises a valve body, wherein a first mounting hole is fixedly formed in the lower end of the valve body, a filter screen is fixedly arranged at the upper end of the first mounting hole, a valve cover is fixedly arranged at the upper end of the valve body, a plurality of bolt holes are fixedly formed in the side edges of the valve cover and the valve body, fastening bolts are fixedly arranged in the bolt holes, the valve cover is fixedly connected with the valve body through the fastening bolts, two lever frames are fixedly connected to the lower end of the valve cover, a mounting plate is fixedly connected between the upper ends of the two lever frames, two second mounting holes are fixedly formed in the mounting plate, an exhaust nozzle is fixedly arranged in one end of the valve cover, a floating ball is arranged in the middle of the valve body, two connecting blocks are fixedly connected to the upper end of the floating ball, a first connecting plate is fixedly connected to the upper, the one end that first connecting plate was kept away from to the second connecting plate rotates and is connected with the third connecting plate, the one end that the second connecting plate was kept away from to the third connecting plate rotates and is connected with the fourth connecting plate, the sealed chock plug of one end upside fixedly connected with that the third connecting plate was kept away from to the fourth connecting plate.

As a further description of the above technical solution:

and the inner wall of the first mounting hole is fixedly provided with an internal thread.

As a further description of the above technical solution:

the lower end of the interior of the valve body is fixedly connected with two limiting rods, and the floating ball slides up and down between the limiting rods.

As a further description of the above technical solution:

and a plug is fixedly arranged at one end of the valve cover, which is far away from the exhaust nozzle.

As a further description of the above technical solution:

and an annular sealing gasket is fixedly arranged at the joint of the valve body and the valve cover.

As a further description of the above technical solution:

an exhaust port is fixedly formed in the exhaust nozzle, and the sealing plug head is connected with the exhaust port in a sealing mode.

As a further description of the above technical solution:

the lower sides of the two ends of the lever frame are fixedly provided with pin holes, and the second connecting plate and the fourth connecting plate are rotatably connected with the lever frame through the pin holes.

As a further description of the above technical solution:

and a sealing gasket is arranged at the joint of the plug and the valve cover.

The utility model discloses following beneficial effect has:

the utility model provides a micro exhaust valve with high sealing performance, the joints of the valve are all provided with sealing gaskets, the high sealing performance of the device is ensured, the device is safer to use, the service life is prolonged, the exhaust port is arranged into a U shape, the sealing plug head is more tightly connected with the exhaust port, the sealing performance of the device is further ensured, the connection of the floating ball and the sealing plug head adopts the fixed connection of a connecting frame, meanwhile, two sides of the floating ball are provided with limiting rods, the floating ball type sealing device is used for limiting the movement route of the floating ball, so that the position of the sealing plug head is fixed, the phenomenon that the sealing plug head is staggered with an exhaust port cannot occur, the sealing effect is poor, the filter screen arranged at the lower end of the valve body can filter impurities in pipeline liquid, the impurities in the pipeline liquid are prevented from entering the valve body, the valve body is damaged, and the valve leakage caused by influencing the opening and closing action and sealing of the micro exhaust valve is prevented.

Drawings

Fig. 1 is a front sectional view of a micro exhaust valve with high sealing performance according to the present invention;

FIG. 2 is a structural diagram of a lever frame of a micro exhaust valve with high sealing performance according to the present invention;

fig. 3 is an enlarged view of fig. 1-a according to the present invention.

Illustration of the drawings:

1. a first mounting hole; 2. a filter screen; 3. a limiting rod; 4. a valve body; 5. a third connecting plate; 6. bolt holes; 7. fastening a bolt; 8. a plug; 9. a valve cover; 10. a lever frame; 11. an exhaust nozzle; 12. a second connecting plate; 13. a first connecting plate; 14. connecting blocks; 15. a floating ball; 16. an internal thread; 17. mounting a plate; 18. a pin hole; 19. a second mounting hole; 20. a fourth connecting plate; 21. sealing the plug head; 22. an annular sealing gasket; 23. and (7) an exhaust port.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a micro exhaust valve with high sealing performance comprises a valve body 4, a first mounting hole 1 is fixedly arranged at the lower end of the valve body 4, a filter screen 2 is fixedly arranged at the upper end of the first mounting hole 1, a valve cover 9 is fixedly arranged at the upper end of the valve body 4, a plurality of bolt holes 6 are fixedly arranged at the lateral sides of the valve cover 9 and the valve body 4, fastening bolts 7 are fixedly arranged in the bolt holes 6, the valve cover 9 is fixedly connected with the valve body 4 through the fastening bolts 7, two lever frames 10 are fixedly connected at the lower end of the valve cover 9, a mounting plate 17 is fixedly connected between the upper ends of the two lever frames 10, two second mounting holes 19 are fixedly arranged in the mounting plate 17, an exhaust nozzle 11 is fixedly arranged in one end of the valve cover 9, a floating ball 15 is arranged in the middle of the valve body 4, two connecting blocks 14 are fixedly connected at the upper end of the floating ball 15, a first connecting plate 13, one end of the second connecting plate 12, which is far away from the first connecting plate 13, is rotatably connected with a third connecting plate 5, one end of the third connecting plate 5, which is far away from the second connecting plate 12, is rotatably connected with a fourth connecting plate 20, and the upside of one end of the fourth connecting plate 20, which is far away from the third connecting plate 5, is fixedly connected with a sealing plug 21.

The fixed internal thread 16 that is provided with of 1 inner wall of first mounting hole, two gag lever posts 3 of the inside lower extreme fixedly connected with of valve body 4, floater 15 slides from top to bottom between gag lever post 3, the fixed end cap 8 that is provided with of the one end that the exhaust nozzle 11 was kept away from to valve gap 9, valve body 4 is provided with annular seal gasket 22 with the valve gap 9 junction is fixed, exhaust nozzle 11 is inside to be fixed to have seted up gas vent 23, sealing plug 21 and gas vent 23 sealing connection, the pinhole 18 has all been fixed to lever frame 10 both ends downside, second connecting plate 12 and fourth connecting plate 20 all rotate with lever frame 10 through pinhole 18 and are connected, end cap 8 is provided with sealed the pad with the valve gap.

The working principle is as follows: when the exhaust valve is used, the valve cover 9 is tightly connected with the valve body 4 through the fastening bolt 7, then the exhaust valve is installed on a pipeline needing to be exhausted through the first installation hole 1, when gas in the pipeline increases, the air pressure in the exhaust valve rises, so that the internal liquid level falls, the liquid level is not enough to support the floating ball 15, the floating ball 15 falls due to the action of gravity, the sealing plug 21 falls through the transmission action of the first connecting plate 13, the second connecting plate 12, the third connecting plate 5 and the fourth connecting plate 20, the sealing plug 21 is separated from the exhaust port 23, the gas in the exhaust valve is exhausted through the exhaust nozzle 11, the air pressure in the exhaust valve falls, the liquid level rises, the floating ball 15 floats, the sealing plug 21 and the exhaust port 23 are tightly combined, the exhaust valve returns to a normal state, the limiting rod 3 can limit the movement of the floating ball 15, so that the position of the sealing plug 21 is fixed, and the phenomenon that the sealing plug 21 and the exhaust, the filter screen 2 can filter the impurity in the pipeline liquid, avoids the impurity in the pipeline liquid to get into inside the valve body 4, causes the harm to the valve body 4, and the device gas tightness is very high.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A micro exhaust valve with high sealing performance comprises a valve body (4), and is characterized in that: the improved air valve is characterized in that a first mounting hole (1) is fixedly formed in the lower end of the valve body (4), a filter screen (2) is fixedly arranged at the upper end of the first mounting hole (1), a valve cover (9) is fixedly arranged at the upper end of the valve body (4), a plurality of bolt holes (6) are fixedly formed in the side edges of the valve cover (9) and the valve body (4), fastening bolts (7) are fixedly arranged in the bolt holes (6), the valve cover (9) and the valve body (4) are fixedly connected through the fastening bolts (7), two lever frames (10) are fixedly connected to the lower end of the valve cover (9), a mounting plate (17) is fixedly connected between the upper ends of the two lever frames (10), two second mounting holes (19) are fixedly formed in the mounting plate (17), an exhaust nozzle (11) is fixedly arranged in one end of the valve cover (9), a floating ball, floater (15) upper end two connecting blocks (14) of fixedly connected with, the equal first connecting plate of fixedly connected with (13) in two connecting blocks (14) upper ends, it is connected with second connecting plate (12) to rotate between two first connecting plate (13) upper ends, the one end that first connecting plate (13) were kept away from in second connecting plate (12) is rotated and is connected with third connecting plate (5), the one end that second connecting plate (12) were kept away from in third connecting plate (5) is rotated and is connected with fourth connecting plate (20), the sealed chock plug (21) of one end upside fixedly connected with of third connecting plate (5) is kept away from in fourth connecting plate (20).

2. A micro vent valve with high sealing performance according to claim 1, wherein: and internal threads (16) are fixedly arranged on the inner wall of the first mounting hole (1).

3. A micro vent valve with high sealing performance according to claim 1, wherein: the lower end of the interior of the valve body (4) is fixedly connected with two limiting rods (3), and the floating ball (15) slides up and down between the limiting rods (3).

4. A micro vent valve with high sealing performance according to claim 1, wherein: and a plug (8) is fixedly arranged at one end of the valve cover (9) far away from the exhaust nozzle (11).

5. A micro vent valve with high sealing performance according to claim 1, wherein: an annular sealing gasket (22) is fixedly arranged at the joint of the valve body (4) and the valve cover (9).

6. A micro vent valve with high sealing performance according to claim 1, wherein: an exhaust port (23) is fixedly formed in the exhaust nozzle (11), and the sealing plug head (21) is connected with the exhaust port (23) in a sealing mode.

7. A micro vent valve with high sealing performance according to claim 1, wherein: the lower sides of the two ends of the lever frame (10) are respectively and fixedly provided with a pin hole (18), and the second connecting plate (12) and the fourth connecting plate (20) are respectively rotatably connected with the lever frame (10) through the pin holes (18).

8. A micro vent valve with high sealing performance according to claim 4, wherein: and a sealing gasket is arranged at the joint of the plug (8) and the valve cover (9).