CN206309977U - A kind of air bleeding valve and water-carriage system - Google Patents

Abstract

The utility model provides a kind of air bleeding valve and water-carriage system, belongs to valve technology field, and the air bleeding valve includes valve body and gas deflation assembly.Valve body has a cavity, and gas deflation assembly includes control piece, seal and exhaust part, and exhaust part is fixedly connected with valve body, and exhaust part is provided with and the exhaust passage of the ft connection of valve body and steam vent for connecting cavity and exhaust passage.Control piece is slidably sheathed on exhaust part, and seal includes first seal, and first seal is sheathed on exhaust part, and there is gas deflation assembly control piece steam vent closing and control piece to be abutted the first state of first seal, and the second state that steam vent is opened.The first seal set up so that the sealing effectiveness of gas deflation assembly is greatly promoted, its capacity disclosure satisfy that dregs are not easy to block steam vent in design requirement, and cavity.Capacity is big, and exhaust effect is preferable.The water-carriage system includes air bleeding valve mentioned above, and it has the repertoire of air bleeding valve.

Description

A kind of air bleeding valve and water-carriage system

Technical field

The utility model is related to valve technology field, in particular to a kind of air bleeding valve and water-carriage system.

Background technology

In general, the dissolved air in water containing about 2VOL%, during water delivery, these air are by continuous in water Discharge, be gathered at the high point of pipeline, form air bag, water delivery is become difficult, therefore the conveyance power of water of system can be Decline about 5%-15%.This micro-exhaust valve major function is exactly the dissolved air for excluding this 2VOL%, and appropriate means is in height Layer building, on-site pipe arrangement, small pumping station are used to protect or improve the emptying effectiveness and energy saving of system.Single lever-type is vented Valve, is a similar ellipse valve body, and internal all parts are 304 stainless steels including ball float, lever, thick stick frame, valve seat etc., internal Using standard deliveries aperture 1/16, it is suitable for PN16 operating pressure environment.

Inventor has found that traditional air bleeding valve at least has the following disadvantages under study for action：

Capacity is smaller；

Exhaust effect is poor.

Utility model content

The purpose of this utility model there are provided a kind of air bleeding valve, improve the deficiencies in the prior art, and it can increase row The capacity of air valve, and sealing effectiveness is preferable, it is not easy to there is the phenomenon that dregs block steam vent, overall exhaust effect is preferable, Market application potential is huge.

Another object of the present utility model there are provided a kind of water-carriage system, its capacity that can increase air bleeding valve, And sealing effectiveness is preferable, it is not easy to the phenomenon that dregs block steam vent occur, preferably, market application potential is huge for overall exhaust effect Greatly.

What embodiment of the present utility model was realized in：

Embodiment of the present utility model provides a kind of air bleeding valve, and it includes valve body and gas deflation assembly, and valve body has Cavity, gas deflation assembly includes control piece, seal and exhaust part, and exhaust part is fixedly connected with valve body, exhaust part be provided with The exhaust passage of the ft connection of valve body slidably covers with the steam vent for making cavity be connected with exhaust passage, control piece Located at exhaust part, seal includes first seal, and first seal is sheathed on exhaust part, and gas deflation assembly has control piece by row Stomata is closed and control piece abuts the first state of first seal, and the second state that steam vent is opened.

Specifically, by setting first seal, the sealing property of steam vent is greatly strengthen, by the control of control piece System so that when needing steam vent to open, the capacity of air bleeding valve disclosure satisfy that design requirement, and dregs are not easy to block steam vent, Overall exhaust effect is preferable.In the state of vent closure, due to having additional first seal so that the sealing effect of air bleeding valve Fruit is not in the phenomenon of gas leakage leak preferably, and preferably, the gas deflation assembly is reasonable in design, and market application potential is huge for using effect Greatly.

Optionally, the inner surface setting of control piece has along the circumferentially distributed annular groove of exhaust part, and seal includes second Seal, second seal is embedded in annular groove and seals control piece and exhaust part.

Optionally, exhaust part is provided with the transition part of correspondence annular groove, and first seal and second seal are located at exhaust The both sides in hole, along one end away from first seal to the direction of the other end near first seal, transition part of transition part External diameter gradually increase.

Optionally, second seal is O-ring seal.

Optionally, exhaust part axially penetrates through control piece along it.

Optionally, first seal is rubber gasket.

Optionally, steam vent extends radially through exhaust part along exhaust part.

Optionally, gas deflation assembly also includes ball float, and ball float and control piece are connected, and when ball float is moved up and down, steam vent is opened Or closure.

Optionally, gas deflation assembly also includes lever piece, and lever piece includes connector, lever dolly and fixed with valve body to connect The fixture for connecing, one end of connector is articulated with fixture, the other end of connector and the upper articulation of ball float, lever dolly One end be articulated with connector between fixture and ball float, the other end and control piece of lever dolly are hinged.

Embodiment of the present utility model additionally provides a kind of water-carriage system, and it includes air bleeding valve mentioned above, and it has The repertoire of air bleeding valve.

Compared with prior art, the beneficial effect of the utility model embodiment is：

In sum, by setting first seal, the sealing property of steam vent is greatly strengthen, by the control of control piece System so that when needing steam vent to open, the capacity of air bleeding valve disclosure satisfy that design requirement, and dregs are not easy to block steam vent, Overall exhaust effect is preferable.In the state of vent closure, due to having additional first seal so that the sealing effect of air bleeding valve Fruit is not in the phenomenon of gas leakage leak preferably, and preferably, the gas deflation assembly is reasonable in design, and market application potential is huge for using effect Greatly.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to be used needed for embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also Other related accompanying drawings are obtained with according to these accompanying drawings.

Fig. 1 is the schematic diagram under the first visual angle of the air bleeding valve that the utility model embodiment 1 is provided；

Fig. 2 is the schematic diagram under the second visual angle of the air bleeding valve shown in Fig. 1；

Fig. 3 is the schematic diagram under the first visual angle of the gas deflation assembly shown in Fig. 2；

Fig. 4 is the schematic diagram under the second visual angle of the gas deflation assembly shown in Fig. 2；

Fig. 5 is the sectional view along A-A directions of the gas deflation assembly shown in Fig. 4；

Fig. 6 is the partial enlarged drawing at the B of the gas deflation assembly shown in Fig. 5.

Icon：100- air bleeding valves；11- valve bodies；13- gas deflation assemblies；131- exhaust parts；1311- exhaust passages；1313- Steam vent；1315- annular grooves；1317- transition parts；1331- first seals；1333- second seals；135- control pieces； 1371- fixtures；1373- connectors；1375- lever dollies；139- ball floats；1391- connecting portions.

Specific embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.

Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.

, it is necessary to explanation in description of the present utility model, term " on ", D score, " interior ", the orientation of the instruction such as " outward " Or position relationship is that, based on orientation shown in the drawings or position relationship, or the utility model product is usually put when using Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than the dress for indicating or implying meaning Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.Additionally, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important Property.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in utility model.

Embodiment 1

Fig. 1 and Fig. 2 is refer to, a kind of air bleeding valve 100 is present embodiments provided, it includes valve body 11 and gas deflation assembly 13。

Fig. 3 is refer to, valve body 11 has cavity, and gas deflation assembly 13 includes control piece 135, seal and exhaust part 131, Exhaust part 131 is fixedly connected with valve body 11, and exhaust part 131 is provided with the exhaust passage 1311 with the ft connection of valve body 11 With the steam vent 1313 (being shown in Fig. 5) for making cavity be connected with exhaust passage 1311, control piece 135 is slidably sheathed on Exhaust part 131, seal includes first seal 1331, and first seal 1331 is sheathed on exhaust part 131, and gas deflation assembly 13 has Have that control piece 135 closes steam vent 1313 and control piece 135 abuts the first state of first seal 1331, and steam vent 1313 the second states opened.

There is cavity, gas deflation assembly 13 is located at except the part with the exhaust part 131 of extraneous ventilation in valve body 11 Outside valve body 11, other most of structures are all located in the cavity.

Specifically, by setting first seal 1331, the sealing property of steam vent 1313 is greatly strengthen, by control The control of part 135 so that when needing steam vent 1313 to open, the capacity of air bleeding valve 100 disclosure satisfy that design requirement, and dregs are not Steam vent 1313 is easily blocked, overall exhaust effect is preferable.It is close due to having additional first in the state of the closing of steam vent 1313 Sealing 1331 so that the sealing effectiveness of air bleeding valve 100 is not in the phenomenon of gas leakage leak preferably, and using effect is preferable, the row Pneumatic module 13 is reasonable in design, and market application potential is huge.

Optionally, gas deflation assembly 13 also includes ball float 139, and ball float 139 and control piece 135 are connected, and ball float 139 is moved up and down When, steam vent 1313 is opened or closed.

100 points general of air bleeding valve is the principle of air bleeding valve 100 of the formula of ball float 139 and roller shutter type, the formula of ball float 139 and roller shutter type It is the same, merely just introduces the air bleeding valve 100 of the formula of ball float 139, the air bleeding valve 100 of roller shutter type is equally applicable.

Control piece 135 is connected by ball float 139, when air is full of in cavity, ball float 139 followed by under the liquid level of liquid Drop and decline, now with respect to the slide downward of exhaust part 131, steam vent 1313 is relative to be opened control piece 135, and the air in cavity is just Valve body 11 is discharged by steam vent 1313 and exhaust passage 1311.Now liquid level rises, and ball float 139 rises therewith, control piece 135 seal vents 1313, steam vent 1313 is in the state of closing, due to having additional the effect of first seal 1331.It is whole Body sealing effectiveness is preferable.

Optionally, gas deflation assembly 13 also includes lever piece, and lever piece includes connector 1373, lever dolly 1375 and and valve The fixture 1371 that body 11 is fixedly connected, one end of connector 1373 is articulated with fixture 1371, connector 1373 it is another End and the upper articulation of ball float 139, one end of lever dolly 1375 be articulated with connector 1373 positioned at fixture 1371 and floating Between ball 139, the other end and control piece 135 of lever dolly 1375 are hinged.

Optionally, ball float 139 is provided with connecting portion 1391, and connecting portion 1391 is located at the top of ball float 139.

By being hinged for connecting portion 1391 and connector 1373 so that the power that ball float 139 is moved up and down can be transmitted effectively To lever dolly 1375, using effect is preferable.

According to lever principle it is recognised that when lever dolly 1375 is located between fixture 1371 and ball float 139 and is close to During fixture 1371, the power that ball float 139 is applied up or down can be significantly smaller than lever dolly 1375 and control piece 135 is applied Plus power, when ball float 139 is moved upwardly or downwardly, control piece 135 slide effect preferably, the process of seal vents 1313 Become rapid, and good to the abutting effect of first seal 1331, the power applied to control piece 135 due to lever dolly 1375 compared with Greatly so that be substantially not present gap between control piece 135 and first seal 1331, it is ensured that the sealing of steam vent 1313 Can so that after liquid level rises, the dregs in liquid can not enter in steam vent 1313.

Fig. 4 and Fig. 5 is refer to, optionally, the inner surface setting of control piece 135 has along the circumferentially distributed of exhaust part 131 Annular groove 1315, seal includes second seal 1333, and second seal 1333 is embedded in annular groove 1315 and will control Part 135 and exhaust part 131 are sealed.

By setting second seal 1333 so that the sealing effectiveness between control piece 135 and exhaust part 131 is obtained significantly The lifting of degree, while control piece 135 is slided up and down with respect to exhaust part 131, the second seal 1333 is tightly fitted control Part 135 and exhaust part 131, it is ensured that the sealing between control piece 135 and exhaust part 131.

Fig. 6 is refer to, optionally, exhaust part 131 is provided with the transition part 1317 of correspondence annular groove 1315, first seal 1331 and second seal 1333 be located at steam vent 1313 both sides, along transition part 1317 away from the one of first seal 1331 The direction of the other end near first seal 1331 is held, the external diameter of transition part 1317 gradually increases.

Transition part 1317 is located at the bottom of steam vent 1313, that is, near the side of ball float 139, the correspondence of transition part 1317 Annular groove 1315, that is to say, that to second seal 1333 that should be in annular groove 1315, the close steam vent of transition part 1317 Largest outside diameter at 1313, also implies that when 135 seal vents 1313 of control piece, and second seal 1333 is in external diameter At maximum transition part 1317, in that case, second seal 1333 is compressed, now control piece 135 and exhaust part 131 It is almost very close to each other at second seal 1333, integral sealing effect is preferable.By design transition portion 1317, control piece 135 during slip, and second seal 1333 is tightly fitted control piece 135 and exhaust part 131, to second seal 1333 Abrasion it is smaller, because external diameter gradually increases, the process of slip is also a process for buffering so that on the whole, control piece 135 Preferably sealing effectiveness can be played with exhaust part 131.

Optionally, second seal 1333 is O-ring seal.

O-ring seal is the belt rubber seal with circular cross-section, is mainly used in mechanical part in a static condition The leakage of liquids and gases medium is prevented, O-ring seal can also be used as axially reciprocating and low speed rotation in some cases The dynamic sealing element of motion, according to different conditions, can respectively select different materials to be adapted therewith, and O-ring seal is led to Will as far as possible from heavy in section O circles when often selecting, in the case of identical gap, the volume that O-ring seal is squeezed into gap should When the maximum permissible value being squeezed into less than it.

The selection of O-ring seal material is to its sealing property and service life important in inhibiting, and the performance of material is direct Influence the performance of O closed type circles.In addition to the general requirement that should possess sealing ring material, O-ring seal is also noted that following Condition：

(1) high resilience and resilience；

(2) appropriate mechanical strength, including tensile strength, elongation and tearing toughness etc.；

(3) stable performance, is difficult swelling in media as well, and thermal pinch is small；

(4) easy processing shaping, and can guarantee that the size of precision；

(5) contact surface is not corroded, not pollution medium etc..

Therefore general O-ring seal is often made of rubber or silica gel.

Optionally, exhaust part 131 axially penetrates through control piece 135 along it.

As illustrated, control piece 135 is located at the middle part of exhaust part 131, the control piece 135 is simply arranged exhaust part 131 A part, by being arranged a part so that in whole sliding process, the dregs in cavity are not easily accessed control piece 135 In steam vent 1313, integral sealing effect is preferable.

Optionally, first seal 1331 is rubber gasket.

Rubber gasket is a kind of self-expansion sealing pad, belongs to seal for pipe joints part.Has resilient rubber gasket Ensure that when control piece 135 abuts sealing gasket, abrasion will not be caused to control piece 135, and sealing effectiveness is preferable.

Optionally, steam vent 1313 extends radially through exhaust part 131 along exhaust part 131.

The steam vent 1313 runs through exhaust part 131, the axis pair of the relative exhaust part 131 in two openings of the exhaust part 131 Claim to set, be easy to ventilation, the quantity of the steam vent 1313 can be two, or multiple.

According to a kind of air bleeding valve 100 that the utility model embodiment is provided, the job step of air bleeding valve 100 is：

In cavity in the state of some liquid.

Step one：Air in water overflows, into cavity, air pressure increase in cavity；

Step 2：Liquid level declines, and ball float 139 is moved down therewith；

Step 3：Lever dolly 1375 is moved down, and control piece 135 is opened away from steam vent 1313, steam vent 1313；

Step 4：Air in cavity enters the outside of valve body 11 by steam vent 1313 and exhaust passage 1311；

Step 5：Air is discharged, and liquid level rises, and ball float 139 rises therewith, makes the seal vents 1313 of control piece 135.

Embodiment 2

The present embodiment also provides a kind of water-carriage system, and the water-carriage system includes air bleeding valve 100 mentioned above, air bleeding valve 100 structure may be referred to embodiment 1, and the water-carriage system has the institute of air bleeding valve 100 functional.

In sum, the utility model provides a kind of air bleeding valve 100, and it passes through to set first seal 1331, significantly The sealing property of steam vent 1313 is enhanced, by the control of control piece 135 so that when needing steam vent 1313 to open, exhaust The capacity of valve 100 disclosure satisfy that design requirement, and dregs are not easy to block steam vent 1313, and overall exhaust effect is preferable.In row In the state of stomata 1313 is closed, due to having additional first seal 1331 so that the sealing effectiveness of air bleeding valve 100 is preferable, no The phenomenon of gas leakage leak occurs, preferably, the gas deflation assembly 13 is reasonable in design, and market application potential is huge for using effect.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of air bleeding valve, it is characterised in that including valve body and gas deflation assembly, the valve body has cavity, the exhaust Component includes control piece, seal and exhaust part, and the exhaust part is fixedly connected with the valve body, and the exhaust part is provided with With the exhaust passage of the ft connection of the valve body and steam vent for connecting the cavity and the exhaust passage, institute State control piece and be slidably sheathed on the exhaust part, the seal includes first seal, and the first seal is arranged In the exhaust part, the gas deflation assembly has that the control piece closes the steam vent and the control piece abuts described the The first state of one seal, and the second state that the steam vent is opened.

2. air bleeding valve according to claim 1, it is characterised in that the inner surface setting of the control piece has along the exhaust The circumferentially distributed annular groove of part, the seal includes second seal, and the second seal is embedded at the annular groove It is interior and seal the control piece and the exhaust part.

3. air bleeding valve according to claim 2, it is characterised in that the exhaust part is provided with the mistake of the correspondence annular groove Portion is crossed, the first seal and the second seal are located at the both sides of the steam vent, along the transition part away from institute One end to the direction of the other end near the first seal of first seal is stated, the external diameter of the transition part gradually increases Greatly.

4. air bleeding valve according to claim 3, it is characterised in that the second seal is O-ring seal.

5. air bleeding valve according to claim 1, it is characterised in that the exhaust part axially penetrates through the control piece along it.

6. air bleeding valve according to claim 1, it is characterised in that the first seal is rubber gasket.

7. air bleeding valve according to claim 1, it is characterised in that the steam vent extends radially through institute along the exhaust part State exhaust part.

8. the air bleeding valve according to claim any one of 1-7, it is characterised in that the gas deflation assembly also includes ball float, institute Ball float and control piece connection are stated, when the ball float is moved up and down, the steam vent is opened or closed.

9. air bleeding valve according to claim 8, it is characterised in that the gas deflation assembly also includes lever piece, the lever Part includes connector, lever dolly and the fixture being fixedly connected with the valve body, and one end of the connector is articulated with institute State the upper articulation of fixture, the other end of the connector and the ball float, one end of the lever dolly is articulated with described Connector between the fixture and the ball float, the other end and the control piece of the lever dolly are hinged.

10. a kind of water-carriage system, it is characterised in that including the air bleeding valve described in claim any one of 1-9.