CN219975579U

CN219975579U - Trace exhaust valve

Info

Publication number: CN219975579U
Application number: CN202321435833.1U
Authority: CN
Inventors: 廖芝金; 陈乙飞; 佘导演
Original assignee: Anhui Redstar Valve Co Ltd
Current assignee: Anhui Redstar Valve Co Ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-11-07
Anticipated expiration: 2033-06-06

Abstract

The utility model belongs to the field of exhaust valves, and particularly relates to a micro exhaust valve, which aims to solve the problem that the sealing performance at an exhaust port of the exhaust valve is poor and the using effect is affected. The utility model has the advantages that the distance between the blocking piece and the exhaust hole is regulated by the regulating component, so that the blocking piece can be accurately attached to the exhaust hole after moving, the blocking effect of the blocking piece on the exhaust hole is improved, and the tightness is improved.

Description

Trace exhaust valve

Technical Field

The utility model belongs to the field of exhaust valves, and particularly relates to a micro exhaust valve.

Background

In general, water contains dissolved air, which is released from the water continuously during the water delivery process, and gathers at the high points of the pipeline to form air pockets, making water delivery difficult and thus reducing the water delivery capacity of the system. The main function of the micro exhaust valve is to exhaust the air separated out from the water, which is suitable for being installed in high-rise buildings, in-plant piping and small pump stations to protect or improve the water delivery efficiency of the system and save energy.

The utility model discloses a pressurized large-caliber micro exhaust valve, which is disclosed in the application number CN201220520204.4 and comprises a valve body, wherein the upper end of the valve body is provided with a valve cover, a floating ball is arranged in the valve body, a valve core is arranged below an exhaust port on the valve cover, and the floating ball is connected with the valve core through a duplex lever mechanism. The valve core end lever and the floating ball end lever of the double-link lever mechanism are respectively hinged with the connecting rod, and the floating ball end lever and the valve core end lever are hinged on the valve body. The air in the pipeline is discharged from the air outlet, when water in the pipeline enters the valve cavity to enable the floating ball to float, the floating ball drives the valve core to close the air outlet through the valve core end lever, the floating ball end lever and the connecting rod, a certain amount of air is stored in the valve cavity, and when the gas precipitated in the water is increased, the floating ball descends along with the water level, the air outlet is opened, and the air exhaust is continued.

The following problems exist in the related art: the valve core is fixedly connected to the valve core end lever, when the floating ball rises to a certain height, the valve core is contacted with the exhaust port to enable the exhaust port to be closed, but the problem of insufficient contact between the valve core and the exhaust port is easy to occur, gas in the valve cavity is continuously discharged from the exhaust port, so that water in the valve cavity leaks from the exhaust port, and the using effect of the exhaust valve is affected.

Disclosure of Invention

In order to improve the sealing effect of the exhaust valve, the utility model provides a micro exhaust valve.

The utility model provides a micro exhaust valve which adopts the following technical scheme:

the utility model provides a micro exhaust valve, includes the valve body and has seted up the valve gap in exhaust hole, valve body and valve gap inside are provided with the valve pocket, set up the water inlet that is used for intercommunication valve pocket and conduit on the valve body, be provided with floater and shutoff piece in the valve pocket, be provided with duplex lever mechanism between floater and the shutoff piece, the floater passes through duplex lever mechanism drive shutoff piece and closes or open the exhaust hole, still be provided with the adjusting part that is used for adjusting the distance between shutoff piece and the exhaust hole in the valve pocket.

Through adopting above-mentioned technical scheme, discharge valve installs on the conduit, and the valve pocket passes through water inlet and conduit intercommunication, and exhaust hole on the valve cap can discharge the aqueous vapor in the conduit, and after discharging a certain amount of air, water in the conduit gets into in the valve pocket, and the floater floats and rises and makes the exhaust hole close through duplex lever mechanism drive shutoff piece, avoids water to discharge from the exhaust hole, adjusts the distance between shutoff piece and the exhaust hole through adjusting the subassembly for the shutoff piece can be in the back of removal with the accurate laminating of exhaust hole, improves the shutoff effect of shutoff piece to the exhaust hole, improves the leakproofness.

As a further preferable mode, the double-lever mechanism comprises an upper lever, a lower lever, a connecting rod and a first connecting assembly used for connecting the upper lever and the lower lever to the valve cover, wherein the upper lever and the lower lever are hinged with the connecting rod, the plugging piece is connected with the upper lever, and the floating ball is connected with the lower lever.

Through adopting above-mentioned technical scheme, go up lever and lower lever and all be connected with the valve gap through first coupling assembling, go up the lever and be connected through the connecting rod between the lever down, the shutoff piece is connected with last lever, and the floater is connected with lower lever to can take off shutoff piece and floater simultaneously when the valve gap is dismantled, be convenient for maintain and overhaul.

As a further preferable mode, the first connecting assembly comprises a first connecting block and a first screw, the first connecting block is provided with a first through hole, the first screw penetrates through the first through hole to be in threaded connection with the valve cover, and the upper lever or the lower lever is hinged with the first connecting block.

Through adopting above-mentioned technical scheme, first screw passes first perforation and valve gap connection on the first connecting block, and simple installation is convenient, and occupies the inside space of valve pocket less, makes this discharge valve exhaust effect better.

As a further preferred aspect, the dual lever mechanism further includes a second connection assembly, and the floating ball is detachably connected to the lower lever through the second connection assembly.

Through adopting above-mentioned technical scheme, can dismantle the connection between floater and the lower lever to be convenient for change the floater, make the floater keep better buoyancy, control the shutoff piece motion and make the exhaust hole open or close.

As a further preferable mode, the second connecting assembly comprises a second connecting block and a second screw, the second connecting block is hinged with the lower lever, a second through hole is formed in the second connecting block, a connecting sleeve is arranged on the floating ball, and the second screw penetrates through the second through hole to be in threaded connection with the connecting sleeve.

Through adopting above-mentioned technical scheme, the second connecting block is connected with lower lever, and the second perforation on the second connecting block is worn to establish by the second screw is connected with the adapter sleeve on the floater, simple structure, convenient operation, and the installation is dismantled swiftly.

As a further preferred, the adjusting component comprises a threaded rod and a threaded sleeve, a connecting hole is formed in the upper lever, the threaded sleeve is fixedly connected to the connecting hole in a coaxial line mode, the threaded rod penetrates through the connecting hole and is in threaded connection fit with the threaded sleeve, and a clamping groove in clamping fit with the plugging piece is formed in the top of the threaded rod.

Through adopting above-mentioned technical scheme, rotate the threaded rod and make its axis direction motion along the connecting hole, the shutoff piece sets up on the threaded rod to can drive the shutoff piece motion, and the shutoff piece is more stable with the connection of threaded rod, simple structure, and it is convenient to adjust.

As a further preferable mode, a valve core is arranged at the exhaust hole and extends to the lower portion of the exhaust hole, an opening communicated with the exhaust hole is formed in the valve core, the diameter of the opening is smaller than that of the exhaust hole, and the plugging piece is in butt joint with the valve core to close the opening.

Through adopting above-mentioned technical scheme, the shutoff piece contacts with the case after the motion to close the opening on the case, and the shutoff piece contacts with the case more tightly, further improves sealed effect.

As a further preferable mode, a sealing ring is arranged on the contact surface of the valve core and the valve cover, and a positioning groove for embedding the sealing ring is formed in the valve core.

Through adopting above-mentioned technical scheme, the leakproofness between improvement case and the valve gap of setting up of sealing ring, and sealing ring position is more stable, and sealed effect is better.

As a further preferable mode, the valve body is connected with the valve cover through bolts, a sealing ring is arranged between the valve body and the valve cover, and a placing groove for embedding the sealing ring is formed in the valve body.

Through adopting above-mentioned technical scheme, when being connected valve gap and valve body through the bolt, the sealing washer improves the leakproofness between valve gap and the valve body, and the sealing washer sets up in the standing groove, and the position is more stable, realizes better sealed effect.

As a further preferable mode, the valve body is provided with an exhaust hole communicated with the valve cavity, and a plug is arranged at the exhaust hole.

By adopting the technical scheme, when the exhaust valve is overhauled, the plug at the exhaust port is removed, the pressure in the valve cavity is removed, and the overhauling is convenient.

In summary, the utility model has at least the following beneficial technical effects:

1. the exhaust valve is arranged on the water conveying pipeline, the valve cavity is communicated with the water conveying pipeline through the water inlet, the exhaust hole on the valve cover can exhaust the water vapor in the water conveying pipeline, after a certain amount of air is exhausted, water in the water conveying pipeline enters the valve cavity, the floating ball floats and rises to drive the blocking piece to enable the exhaust hole to be closed through the double lever mechanism, water is prevented from being exhausted from the exhaust hole, the distance between the blocking piece and the exhaust hole is regulated through the regulating component, the blocking piece can be accurately attached to the exhaust hole after moving, the blocking effect of the blocking piece on the exhaust hole is improved, and the tightness is improved;

2. the upper lever and the lower lever are connected with the valve cover through the first connecting component, the upper lever and the lower lever are connected through the connecting rod, the plugging piece is connected with the upper lever, and the floating ball is connected with the lower lever, so that the plugging piece and the floating ball can be simultaneously taken down when the valve cover is detached, and maintenance and overhaul are facilitated;

3. the plugging piece is arranged on the threaded rod by rotating the threaded rod to enable the threaded rod to move along the axis direction of the connecting hole, so that the plugging piece can be driven to move, and the device is simple in structure and convenient to adjust.

Drawings

FIG. 1 is a schematic elevational view of an embodiment of the present utility model;

FIG. 2 is a schematic top view of an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view taken along line A-A in FIG. 2;

FIG. 4 is an enlarged schematic view of portion B of FIG. 3;

fig. 5 is an enlarged schematic view of a portion C in fig. 3.

The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:

1. a valve body; 11. a valve cavity; 12. a water inlet; 13. a placement groove; 14. an exhaust port; 15. a plug; 2. a valve cover; 21. an exhaust hole; 22. a valve core; 221. an opening; 222. a positioning groove; 23. a seal ring; 3. a floating ball; 31. connecting sleeves; 4. a blocking member; 5. a double lever mechanism; 51. an upper lever; 511. a connection hole; 52. a lower lever; 53. a connecting rod; 54. a first connection assembly; 541. a first connection block; 5411. a first perforation; 542. a first screw; 55. a second connection assembly; 551. a second connection block; 5511. a second perforation; 552. a second screw; 6. an adjustment assembly; 61. a threaded rod; 611. a clamping groove; 62. a thread sleeve; 7. a bolt; 8. and (3) sealing rings.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a micro exhaust valve.

Referring to fig. 1, the micro exhaust valve comprises a valve body 1, a valve cover 2, a floating ball 3, a plugging piece 4, a duplex lever mechanism 5, an adjusting component 6, a bolt 7 and a sealing ring 8; the valve body 1 and the valve cover 2 are internally provided with a valve cavity 11, the valve body 1 is provided with a water inlet 12 for communicating the valve cavity 11 with a water pipeline, the valve cover 2 is provided with an exhaust hole 21, and gas in the water pipeline can enter the valve cavity 11 and then be exhausted from the exhaust hole 21; the floater 3, the shutoff piece 4, the duplex lever mechanism 5 and the adjusting part 6 all set up inside the valve pocket 11, and duplex lever mechanism 5 is located between floater 3 and shutoff piece 4, vent 21 is opened under the normal condition, after the water in the conduit gets into in the valve pocket 11, floater 3 passes through duplex lever mechanism 5 drive shutoff piece 4 and closes vent 21, prevent that water from spilling in the vent 21, for making shutoff piece 4 can be after the motion with vent 21 accurate laminating, improve the shutoff effect of shutoff piece 4 to vent 21, adjust the distance between shutoff piece 4 and the vent 21 through adjusting part 6.

In order to improve the connection tightness of the valve body 1 and the valve cover 2, the valve body 1 and the valve cover 2 are connected into a whole through the bolt 7, the sealing ring 8 is arranged between the valve body 1 and the valve cover 2, and in order to enable the sealing ring 8 to be arranged more stably, a placing groove 13 for embedding the sealing ring 8 is formed in the valve body 1, and the placing groove is formed in the valve body 1.

In order to facilitate overhauling the valve body 1, the valve body 1 is provided with an exhaust port 14, the exhaust port 14 is communicated with the valve cavity 11, a plug 15 is in threaded connection with the exhaust port 14, under normal use, the plug 15 plugs the exhaust port 14, and when overhauling the exhaust valve, the plug 15 at the exhaust port 14 is taken down to remove the pressure in the valve cavity 11.

In this embodiment, the exhaust valve is to realize exhaust, the dual-lever mechanism 5 includes an upper lever 51, a lower lever 52, a connecting rod 53 and a first connecting component 54, one ends of the upper lever 51 and the lower lever 52 are connected to the valve cover 2 through the first connecting component 54, specifically, the first connecting component 54 includes a first connecting block 541 and a first screw 542, the first connecting block 541 is provided with a first through hole 5411, and the first screw 542 penetrates through the first through hole 5411 to be in threaded connection with the valve cover 2;

the length of the upper lever 51 is longer than that of the lower lever 52, the upper lever 51 or the lower lever 52 is hinged with the first connecting block 541, so that the upper lever 51 or the lower lever 52 is in rotary connection relative to the valve cover 2, the other end of the upper lever 51 and the middle part of the lower lever 52 are both hinged with the connecting rod 53, the plugging piece 4 is connected with the middle part of the upper lever 51, the floating ball 3 is connected with the other end of the lower lever 52, when the floating ball 3 rises in a floating manner, the lower lever 52 rotates to drive the connecting rod 53 and the upper lever 51 to rotate, and the plugging piece 4 on the upper lever 51 closes the exhaust hole 21, and the amplification coefficient between the upper lever 51 and the lower lever 52 is about 1:15;

and the plugging piece 4 and the floating ball 3 are connected with the valve cover 2 into a whole through the duplex lever mechanism 5, and the plugging piece 4 and the floating ball 3 can be simultaneously taken down when the valve cover 2 is disassembled, so that maintenance and overhaul are facilitated.

The duplex lever mechanism 5 further comprises a second connecting component 55, the floating ball 3 is detachably connected with the lower lever 52 through the second connecting component 55, the second connecting component 55 comprises a second connecting block 551 and a second screw 552, the second connecting block 551 is hinged with the end part of the lower lever 52, a second through hole 5511 is formed in the second connecting block 551, the connecting sleeve 31 is integrally formed on the floating ball 3, the second screw 552 penetrates through the second through hole 5511 to be in threaded connection with the connecting sleeve 31, the floating ball 3 is convenient to replace, the floating ball 3 keeps good buoyancy, the plugging piece 4 is controlled to move to enable the exhaust hole 21 to be opened or closed, the pressure bearing capacity of the floating ball 3 in the embodiment is 1.5 times of nominal pressure/12 h, and no visible deformation and leakage are avoided.

In order to facilitate the adjustment of the plugging piece 4, the adjusting component 6 comprises a threaded rod 61 and a threaded sleeve 62, the upper lever 51 is provided with a connecting hole 511, the threaded sleeve 62 is fixedly connected to the connecting hole 511 in a coaxial line, the threaded rod 61 penetrates through the connecting hole 511 and is in threaded connection fit with the threaded sleeve 62, a clamping groove 611 which is in clamping fit with the plugging piece 4 is formed in the top of the threaded rod 61, the plugging piece 4 is connected with the threaded rod 61 more stably, the threaded rod 61 is rotated to enable the plugging piece 4 to move along the axial direction of the connecting hole 511, and the plugging piece 4 is arranged on the threaded rod 61 so as to drive the plugging piece 4 to move;

the exhaust hole 21 is fixedly connected with the valve core 22, the valve core 22 extends to the lower part of the exhaust hole 21, an opening 221 communicated with the exhaust hole 21 is formed in the valve core 22, the diameter of the opening 221 is smaller than that of the exhaust hole 21, the sealing piece 4 is abutted to the valve core 22 to close the opening 221, a sealing ring 23 is arranged on the contact surface of the valve core 22 and the valve cover 2, a positioning groove 222 for embedding the sealing ring 23 is formed in the valve core 22, and the valve core 22 is made of rubber material and is vulcanized together with metal to be integrated, so that the exhaust valve can bear larger pressure, is suitable for environments with larger pressure, and is particularly suitable for environments with PN63 or more, and therefore, the exhaust valve is also a high-pressure micro exhaust valve.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A micro exhaust valve, which is characterized in that: including valve body (1) and offer valve gap (2) of exhaust hole (21), valve body (1) and valve gap (2) inside be provided with valve pocket (11), set up on valve body (1) with water inlet (12) of valve pocket (11) intercommunication, be provided with floater (3) and shutoff piece (4) in valve pocket (11), be provided with duplex lever mechanism (5) between floater (3) and shutoff piece (4), floater (3) drive through duplex lever mechanism (5) shutoff piece (4) close or open exhaust hole (21), still be provided with in valve pocket (11) adjusting part (6) that are used for adjusting the distance between shutoff piece (4) and the exhaust hole (21).

2. The micro exhaust valve according to claim 1, wherein: the duplex lever mechanism (5) comprises an upper lever (51), a lower lever (52), a connecting rod (53) and a first connecting assembly (54) used for connecting the upper lever (51) and the lower lever (52) to the valve cover (2), wherein the upper lever (51) and the lower lever (52) are hinged to the connecting rod (53), the plugging piece (4) is connected with the upper lever (51), and the floating ball (3) is connected with the lower lever (52).

3. The micro exhaust valve according to claim 2, wherein: the first connecting assembly (54) comprises a first connecting block (541) and a first screw (542), the first connecting block (541) is provided with a first through hole (5411), the first screw (542) penetrates through the first through hole (5411) to be in threaded connection with the valve cover (2), and the upper lever (51) or the lower lever (52) is hinged with the first connecting block (541).

4. The micro exhaust valve according to claim 2, wherein: the double-lever mechanism (5) further comprises a second connecting component (55), and the floating ball (3) is detachably connected with the lower lever (52) through the second connecting component (55).

5. The micro exhaust valve according to claim 4, wherein: the second connecting assembly (55) comprises a second connecting block (551) and a second screw (552), the second connecting block (551) is hinged to the lower lever (52), a second through hole (5511) is formed in the second connecting block (551), a connecting sleeve (31) is arranged on the floating ball (3), and the second screw (552) penetrates through the second through hole (5511) to be in threaded connection with the connecting sleeve (31).

6. The micro exhaust valve according to claim 2, wherein: the adjusting component (6) comprises a threaded rod (61) and a threaded sleeve (62), a connecting hole (511) is formed in the upper lever (51), the threaded sleeve (62) is fixedly connected to the connecting hole (511) in a coaxial line mode, the threaded rod (61) penetrates through the connecting hole (511) and is in threaded connection with the threaded sleeve (62) to be matched with the threaded sleeve, and a clamping groove (611) for clamping and matching with the plugging piece (4) is formed in the top of the threaded rod (61).

7. The micro exhaust valve according to claim 1, wherein: the valve is characterized in that a valve core (22) is arranged at the exhaust hole (21), the valve core (22) extends to the lower side of the exhaust hole (21), an opening (221) communicated with the exhaust hole (21) is formed in the valve core (22), the diameter of the opening (221) is smaller than that of the exhaust hole (21), and the plugging piece (4) is abutted to the valve core (22) to close the opening (221).

8. The micro exhaust valve according to claim 7, wherein: the valve core (22) is provided with a sealing ring (23) on the contact surface of the valve cover (2), and the valve core (22) is provided with a positioning groove (222) for embedding the sealing ring (23).

9. The micro exhaust valve according to claim 1, wherein: the valve body (1) is connected with the valve cover (2) through a bolt (7), a sealing ring (8) is arranged between the valve body (1) and the valve cover (2), and a placing groove (13) for embedding the sealing ring (8) is formed in the valve body (1).

10. The micro exhaust valve according to claim 1, wherein: an exhaust port (14) communicated with the valve cavity (11) is formed in the valve body (1), and a plug (15) is arranged at the exhaust port (14).