CN213899905U

CN213899905U - Quick exhaust valve with guide function

Info

Publication number: CN213899905U
Application number: CN202022932706.5U
Authority: CN
Inventors: 陈伯聪
Original assignee: Chinadrip Irrigation Equipment Co ltd
Current assignee: Chinadrip Irrigation Equipment Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-06
Anticipated expiration: 2030-12-07

Abstract

The utility model relates to the field of exhaust valves, and discloses a quick exhaust valve with a guide, which comprises a main shell, a fixed bracket, a floater and a sealing gasket; one end of the main shell is provided with a holding tank for holding the floater and the fixed support, the notch of the holding tank is butted with the irrigation pipeline, and the bottom of the tank is provided with an exhaust hole; the fixed support comprises a fixed block and a guide rod, the fixed block is fixedly arranged in the accommodating groove, one side of the fixed block is fixedly connected with the guide rod, the guide rod is arranged towards the exhaust hole, and the fixed block is provided with a plurality of abdicating holes for water to pass through; one end of the floater is provided with a guide rail in sliding fit with the guide rod, and the other end of the floater is tightly matched with the exhaust hole and used for controlling the exhaust hole to be opened or closed; the sealing gasket is arranged between the floater and the wall of the vent hole. The utility model discloses can guarantee that the float keeps straight line up-and-down motion, improve the speed of exhausting and admitting air to improve the efficiency of exhausting and admitting air, can also effectively protect irrigation pipe way to avoid receiving extreme high pressure influences such as water hammer.

Description

Quick exhaust valve with guide function

Technical Field

The utility model relates to an exhaust valve field, concretely relates to area direction quick exhaust valve.

Background

The exhaust valve is mostly applied to exhaust of pipelines such as an independent heating system, a central heating system, a heating boiler, a central air conditioner, a floor heating system, a solar heating system and the like. Present discharge valve also extensively is used for irrigation facilities, and the effect is with the air escape in the irrigation pipe to guarantee that the rivers in the irrigation pipe are unobstructed, avoid the pipeline to take place the jam condition because of intraductal stagnant air.

The existing exhaust valve generally comprises a valve body vertical to the pipeline and a floater arranged in the valve body, wherein the valve body is provided with an exhaust hole, when the irrigation pipeline empty pipe is filled with water, the exhaust hole exhausts the water, and the floater floats upwards quickly due to the fact that the water flow speed is high, the exhaust hole is closed, and therefore the exhaust valve stops exhausting in advance. The exhaust valve is closed suddenly, so that most of gas in the irrigation pipeline is not discharged, the conveying efficiency of the irrigation pipeline is seriously influenced, a water hammer is easily formed, and great impact is caused on the irrigation pipeline. And the floater in the existing exhaust valve can not move up and down linearly, and can not accurately move to the exhaust hole, so that the exhaust and air intake speed and efficiency are greatly influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a quick exhaust valve of area direction can guarantee that the float keeps straight line up-and-down motion, improves the speed of exhausting and admitting air to improve the efficiency of exhausting and admitting air, can also effectively protect irrigation pipe way to avoid extreme high pressure influences such as water hammer.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: a quick exhaust valve with guide function is composed of main casing, fixing frame, float and sealing gasket.

One end of the main shell is provided with a holding tank for holding the floater and the fixed support, a notch of the holding tank is butted with the irrigation pipeline, and the bottom of the holding tank is provided with an exhaust hole; the fixed support comprises a fixed block and a guide rod, the fixed block is fixedly arranged in the accommodating groove, one side of the fixed block is fixedly connected with the guide rod, the guide rod is arranged towards the exhaust hole, and the fixed block is provided with a plurality of abdicating holes for water to pass through; one end of the floater is provided with a guide rail in sliding fit with the guide rod, the other end of the floater is tightly matched with the exhaust hole, and the floater is used for controlling the opening or closing of the exhaust hole; the sealing gasket is arranged between the floater and the wall of the vent hole.

Further setting up, one side cell wall that the exhaust hole was kept away from to aforementioned holding tank is equipped with the internal thread, and the main casing body passes through internal thread and irrigation pipe threaded connection.

So set up, area direction quick exhaust valve passes through the internal thread and can dismantle with irrigation pipe and be connected.

Further setting up, still being equipped with the fixed slot on the aforementioned holding tank cell wall, the fixed slot is located between internal thread and the exhaust hole, fixed block and fixed slot clearance fit.

So set up, fixed block and fixed slot clearance fit to fix the fixed bolster in the holding tank.

Further setting, a plurality of grooves used for reducing the weight of the floater are formed in one end, far away from the exhaust hole, of the floater.

So set up, the buoyancy of convenient water can make the float on the surface of water easily.

And a cone part is arranged at one end of the floater, which is close to the exhaust hole, and a cone-shaped concave part matched with the cone part is arranged on the hole wall of the exhaust hole.

So set up, through pyramis and toper concave part cooperation for float top and exhaust hole pore wall zonulae occludens, thereby seal irrigation pipe, prevent the exhaust back, in outside air passes through the exhaust hole entering irrigation pipe, can also prevent that the water in the irrigation pipe from flowing out from the exhaust hole.

The outer side wall of the conical part is provided with an annular sealing groove, and the notch of the annular sealing groove is opposite to the conical concave part; the sealing gasket is arranged in the annular sealing groove and is annular, and the outer side of the sealing gasket extends out of the notch of the annular sealing groove and is in tight contact with the conical concave part.

So set up, seal gasket along with the continuous come-up of float can with toper concave part in close contact with, constantly reduce the space between pyramis and the toper concave part, until sealed irrigation pipe, prevent the exhaust back, in outside air passes through the exhaust hole entering irrigation pipe, can also prevent that the water in the irrigation pipe from flowing out from the exhaust hole.

Further setting, aforementioned area direction quick vent valve still includes the upper cover, and the upper cover lid is established in the one side that the exhaust hole was seted up to the main casing body, and the upper cover is used for protecting the exhaust hole not receive outside impact, prevents that the float from impacting externally down with the exhaust hole separation.

So set up, the upper cover can avoid the float to strike under the outside and vent hole separation, leads to the exhaust hole to be opened to the influence area direction quick vent valve's normal use.

Further setting up, the protection groove has been seted up to one side that aforementioned upper cover is close to the main casing body, and one side that the main casing body was equipped with the exhaust hole is located the protection inslot, and the protection groove tank bottom is equipped with a plurality of and connects the convex part, connects and has seted up the spread groove on the convex part, and the main casing body outside is equipped with a plurality of and spread groove interference fit's fixed convex part.

So set up, fixed convex part and spread groove interference fit to the fixed connection main casing body and upper cover.

(III) advantageous effects

Compared with the prior art, the utility model provides a pair of area direction quick exhaust valve possesses following beneficial effect:

the utility model has the advantages that the float is in sliding fit with the guide rail through the guide rod, so that the float floats up and down in the accommodating tank along the guide rod, the float can keep linear up-and-down motion, and the exhaust and air intake speed and efficiency of the exhaust valve are greatly improved;

the gap between the conical concave part and the conical part is formed through the sealing gasket, so that gas in the irrigation pipeline conveniently passes through the gap between the sealing gasket and the conical concave part and is discharged into the atmosphere through the vent hole, micro-exhaust is realized, and the phenomenon that the floater quickly floats upwards due to high water flow speed and the vent hole is closed to generate water hammer to damage the irrigation pipeline is avoided;

and seal gasket can with toper concave part in close contact with along with the continuous come-up of float, constantly reduces the space between pyramis and the toper concave part, until sealed irrigation pipe, prevents the exhaust back, and in outside air got into irrigation pipe through the exhaust hole, can also prevent that the water in the irrigation pipe from flowing out from the exhaust hole.

Therefore, the utility model discloses can guarantee that the float keeps straight line up-and-down motion, improve the speed of exhausting and admitting air to improve the efficiency of exhausting and admitting air, can also effectively protect irrigation pipe way to avoid receiving extreme high pressure influences such as water hammer.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a cross-sectional view of the micro-exhaust structure of the present invention;

fig. 4 is a structural sectional view of the present invention when closed.

Reference numerals: 1. a main housing; 11. accommodating grooves; 12. an exhaust hole; 121. a tapered recess; 13. an internal thread; 14. fixing grooves; 15. a fixed protrusion; 2. fixing a bracket; 21. a fixed block; 211. a hole of abdication; 22. a guide bar; 3. a float; 31. a groove; 32. a guide rail; 33. a pyramid part; 331. an annular seal groove; 4. sealing gaskets; 5. an upper cover; 51. a protective groove; 52. a connecting projection; 521. and connecting the grooves.

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.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of the present invention, fig. 2 is an exploded structural diagram of the present invention, fig. 3 is a sectional structural view of the present invention during micro-exhaust, and fig. 4 is a sectional structural view of the present invention during closing.

The utility model provides a pair of area direction quick exhaust valve, including main casing body 1, fixed bolster 2, float 3, seal gasket 4 and upper cover 5.

The main shell 1, the fixed support 2, the floater 3, the sealing gasket 4 and the upper cover 5 are all integrally formed.

The main housing 1 is provided at one end with a receiving groove 11, and the receiving groove 11 is used for receiving the float 3 and the fixing bracket 2. The notch of the accommodating groove 11 is butted with an irrigation pipeline and serves as an air inlet end with a guide quick exhaust valve; the bottom of the accommodating groove 11 is provided with an exhaust hole 12, and the exhaust hole 12 is used as an air outlet end of the rapid exhaust valve with guide. From the bottom up has opened internal thread 13 and fixed slot 14 in proper order on the 11 cell walls of holding tank, and main casing body 1 passes through internal thread 13 and irrigation pipe threaded connection, and internal thread 13 is used for conveniently taking direction quick exhaust valve to dismantle with irrigation pipe and is connected.

The fixing bracket 2 includes a fixing block 21 and a guide rod 22, the fixing block 21 is in clearance fit with the fixing groove 14, one side of the fixing block 21 is fixedly connected with the guide rod 22, and the guide rod 22 extends towards the exhaust hole 12, so that the fixing bracket 2 is fixed in the accommodating groove 11. Three yielding holes 211 for water to pass through are formed in the fixed block 21, so that the floater 3 can be conveniently lifted to the exhaust hole 12 through the buoyancy of water.

The float 3 is located between the fixed block 21 and the exhaust hole 12, and the float 3 is used for controlling the opening or closing of the exhaust hole 12. The bottom of the floater 3 is provided with three grooves 31 for reducing the weight of the floater 3, so that the floater 3 can easily float on the water surface by the buoyancy of water. The bottom of the floater 3 is also provided with a guide rail 32 which is in sliding fit with the guide rod 22, so that the floater 3 floats up and down in the accommodating groove 11 along the guide rod 22, the floater 3 can keep linear up-and-down movement, and the exhaust and intake speed and efficiency of the exhaust valve are greatly improved. The top of the float 3 is provided with a cone 33, the hole wall of the exhaust hole 12 is provided with a cone concave part 121 matched with the cone 33, and the cone 33 is matched with the cone concave part 121, so that the top of the float 3 is tightly connected with the hole wall of the exhaust hole 12, the irrigation pipeline is sealed, after exhaust is prevented, external air enters the irrigation pipeline through the exhaust hole 12, and water in the irrigation pipeline can be prevented from flowing out from the exhaust hole 12. An annular seal groove 331 is formed on an outer side wall of the tapered portion 33, and a notch of the annular seal groove 331 is opposite to the tapered recess 121.

The sealing gasket 4 is annular, the sealing gasket 4 is sleeved in the annular sealing groove 331, and the sealing gasket 4 is in clearance fit with the annular sealing groove 331. Seal gasket 4 outside stretches out annular seal groove 331 notch, so, when float 3 come up, seal gasket 4 makes the formation space between toper concave part 121 and the pyramis 33, make things convenient for the inside gas of irrigation pipe to pass the space between seal gasket 4 and the toper concave part 121 and discharge to the atmosphere through exhaust hole 12 in, realize the trace exhaust, avoid because the velocity of water is very fast for float 3 upwards floats fast, close exhaust hole 12 and then produce the water hammer and destroy irrigation pipe. Seal gasket 4 material adopts silica gel, and silica gel has elasticity for seal gasket 4 can with toper concave part 121 in close contact with along with float 3 constantly floats, constantly reduces the space between pyramis 33 and the toper concave part 121, until sealed irrigation pipe, prevents the exhaust back, and in outside air got into irrigation pipe through exhaust hole 12, can also prevent that the water in the irrigation pipe from flowing out from exhaust hole 12.

The upper cover 5 covers the side of the main housing 1 where the exhaust hole 12 is opened, for protecting the exhaust hole 12 from external impact, to prevent the float 3 from being separated from the exhaust hole 12 by external impact, resulting in the exhaust hole 12 being opened, thereby affecting the normal use of the guided quick exhaust valve. The side of the upper cover 5 close to the main casing 1 is provided with a protective groove 51, and the side of the main casing 1 provided with the exhaust hole 12 is positioned in the protective groove 51. The protective groove 51 has four connecting protrusions 52 at the bottom of the groove, the connecting protrusions 52 are provided with connecting grooves 521, the outer side of the main casing 1 is provided with four fixing protrusions 15 which are in interference fit with the connecting grooves 521, and the fixing protrusions 15 are in interference fit with the connecting grooves 521, so that the main casing 1 and the upper cover 5 are fixedly connected.

Thus, the utility model discloses during operation, irrigation pipe begins to fill water, float 3 is located fixed block 21 upper end this moment, the inside water of irrigation pipe is with float 3 upwards supporting, the surface of water rises constantly, make float 3 move towards exhaust hole 12 direction along guide bar 22, the inside water of irrigation pipe discharges the most gas of irrigation pipe inside to the atmosphere constantly through exhaust hole 12 simultaneously, until the seal gasket 4 outside contacts with toper concave part 121, the surplus gas of irrigation pipe inside at this moment passes the space between seal gasket 4 and toper concave part 121 and discharges to the atmosphere through exhaust hole 12, realized the trace exhaust, avoid because the water velocity is too fast leading to discharge valve to close and then produce the water hammer and destroy irrigation pipe; until the sealing gasket 4 is in close contact with the conical recess 121, the float 3 completely blocks the vent hole 12, thereby closing the guided quick-release valve; when the inside surface of water of irrigation pipe sharply descends, the inside negative pressure that produces of irrigation pipe, outside atmospheric pressure ratio is big than the inside atmospheric pressure of irrigation pipe this moment to separation float 3 and exhaust hole 12 open exhaust hole 12, inside outside air got into irrigation pipe through exhaust hole 12, prevented that the negative pressure from damaging irrigation pipe.

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. A quick exhaust valve with guide is characterized by comprising a main shell (1), a fixed support (2), a floater (3) and a sealing gasket (4);

one end of the main shell (1) is provided with a holding tank (11) for holding the floater (3) and the fixed support (2), the notch of the holding tank (11) is butted with the irrigation pipeline, and the bottom of the holding tank (11) is provided with an exhaust hole (12);

the fixing support (2) comprises a fixing block (21) and a guide rod (22), the fixing block (21) is fixedly arranged in the accommodating groove (11), one side of the fixing block (21) is fixedly connected with the guide rod (22), the guide rod (22) is arranged towards the exhaust hole (12), and the fixing block (21) is provided with a plurality of abdicating holes (211) for water to pass through;

one end of the floater (3) is provided with a guide track (32) in sliding fit with the guide rod (22), the other end of the floater (3) is tightly matched with the exhaust hole (12), and the floater (3) is used for controlling the exhaust hole (12) to be opened or closed;

the sealing gasket (4) is arranged between the floater (3) and the hole wall of the exhaust hole (12).

2. The quick exhaust valve with guide according to claim 1 is characterized in that the groove wall of one side of the accommodating groove (11) far away from the exhaust hole (12) is provided with an internal thread (13), and the main shell (1) is in threaded connection with the irrigation pipeline through the internal thread (13).

3. The quick exhaust valve with guide as claimed in claim 2, wherein the groove wall of the receiving groove (11) is further provided with a fixing groove (14), the fixing groove (14) is located between the internal thread (13) and the exhaust hole (12), and the fixing block (21) is in clearance fit with the fixing groove (14).

4. The quick exhaust valve with guide according to claim 1 is characterized in that the end of the float (3) far away from the exhaust hole (12) is provided with a plurality of grooves (31) for reducing the weight of the float (3).

5. The quick exhaust valve with guide according to claim 1 is characterized in that a taper part (33) is arranged at one end of the float (3) close to the exhaust hole (12), and a taper concave part (121) matched with the taper part (33) is arranged on the hole wall of the exhaust hole (12).

6. The quick exhaust valve with the guide function as claimed in claim 5, characterized in that an annular sealing groove (331) is formed on the outer side wall of the tapered part (33), and the notch of the annular sealing groove (331) is opposite to the conical recess (121); the sealing gasket (4) is arranged in the groove of the annular sealing groove (331) and is annular, and the outer side of the sealing gasket (4) extends out of the notch of the annular sealing groove (331) and is tightly contacted with the conical concave part (121).

7. The quick exhaust valve with guide according to claim 1 is characterized in that the quick exhaust valve with guide further comprises an upper cover (5), the upper cover (5) covers the side of the main housing (1) where the exhaust hole (12) is opened, and the upper cover (5) is used for protecting the exhaust hole (12) from external impact and preventing the float (3) from separating from the exhaust hole (12) under external impact.

8. The quick exhaust valve with the guide function according to claim 7, characterized in that a protection groove (51) is formed in one side of the upper cover (5) close to the main casing (1), one side of the main casing (1) provided with the exhaust hole (12) is located in the protection groove (51), a plurality of connecting convex portions (52) are arranged at the bottom of the protection groove (51), a connecting groove (521) is formed in each connecting convex portion (52), and a plurality of fixing convex portions (15) in interference fit with the connecting groove (521) are arranged on the outer side of the main casing (1).