CN216742859U - Air valve convenient to overhaul - Google Patents

Abstract

The utility model provides an air valve convenient for maintenance, wherein a valve cover is fixedly arranged at the upper end of a valve body, a mounting hole is formed in the middle of the valve cover, the periphery of a central shaft is rotatably sleeved in the mounting hole, a hand wheel is arranged at the upper end of the central shaft, a sliding hole is formed in the middle of a floating body, the periphery of the central shaft is positioned in the sliding hole, the floating body can axially slide along the central shaft, an air hole is formed in the upper end of the valve body, a first through hole is formed in the valve cover and communicated to the inside of the valve body through the air hole, the axially sliding floating body is an opening and closing structure of the air hole, the lower end of the central shaft is in threaded connection with a maintenance valve clack, and the periphery of the maintenance valve clack is in contact connection with an inner ring at the lower end of the valve body. The air valve convenient to overhaul is internally provided with the overhaul valve clack and the valve seat, is used for sealing during overhaul, does not need to be additionally provided with an overhaul gate valve or a ball valve, reduces the part cost, is provided with a plurality of micro exhaust holes, has large micro exhaust amount, can continue to exhaust even if one hole blocks other holes, and has long service life.

Description

Air valve convenient to overhaul

Technical Field

The utility model belongs to the field of air valves, and particularly relates to an air valve convenient to overhaul.

Background

The combined type air valve is widely used for long-distance water conveying pipelines and urban water supply network systems, it has a large amount of exhaust of first water-through, the exhaust is pressed in the pipeline operation area, the function of breathing in a large amount of negative pressure appears in the pipeline, fill water hammer, the nature of closing water hammer, negative pressure water hammer etc. to the protection pipeline plays important effect, the air valve is that automatic valve leans on medium pressure effect to be used for reaching sealed effect, consequently often install a ball valve or gate valve at the air valve entrance and do the maintenance valve, so not only increased the cost but also occupied great space.

Disclosure of Invention

In view of this, the present invention provides an air valve convenient for maintenance, so as to solve the problems of high cost and inconvenient assembly when installing and maintaining the valve in the air valve of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

the utility model provides an air valve convenient to overhaul, body including valve body and inside setting, service flap and axis, valve body upper end fixed mounting valve gap, the valve gap middle part is equipped with the mounting hole, the peripheral rotation of axis is cup jointed in the mounting hole, the axis upper end sets up the hand wheel, the body middle part is equipped with the slide opening, and the axis periphery is located the slide opening, the body can be followed axis endwise slip, the valve body upper end is equipped with the bleeder vent, be equipped with first through-hole on the valve gap, first through-hole communicates to the valve body inside through the bleeder vent, endwise slip's body is the structure that opens and shuts of bleeder vent, axis lower extreme threaded connection is to the service flap, service flap peripheral contact is connected to valve body lower extreme inner circle, and valve body lower extreme fixed connection implements the water pipe.

Further, the valve body lower extreme inner circle cup joints the maintenance disk seat, and overhauls the disk seat upper end and sets up the sealing washer, overhauls valve clack peripheral contact and is connected to the sealing washer periphery.

Furthermore, a fixing ring is arranged inside the valve body, the periphery of the center shaft is located at the inner ring of the fixing ring, the floating body and the maintenance valve seat are respectively located at two sides of the fixing ring, a tie bar is arranged at the periphery of the fixing ring, two ends of the tie bar are respectively and fixedly connected to the periphery of the fixing ring and the inner ring of the valve body, a limiting groove is formed in the upper end of the maintenance valve clack, the periphery of the tie bar is located in the limiting groove, and the periphery of the lower end of the maintenance valve clack is in contact connection with the periphery of the sealing ring.

Further, the axis includes first valve shaft and second valve shaft, and the peripheral cover of first valve shaft lower extreme is connected to solid fixed ring inner circle, and the upper end of first valve shaft passes slide opening, bleeder vent and mounting hole in proper order the fixed hand wheel that cup joints, and second valve shaft upper end fixed connection is to first valve shaft lower extreme, and the peripheral cover of second valve shaft upper end is to solid fixed ring inner circle, and the peripheral threaded connection of second valve shaft is to the maintenance valve clack middle part.

Further, the body includes first float and second float, and first float is located the top of second float, and first float and the coaxial setting of second float, first float upper end are used for covering the bleeder vent, and the contact of first float lower extreme is connected to the upper end of second float, and the lower extreme contact of second float is connected to solid fixed ring's upper end, and first float middle part is equipped with the third through-hole, and second float middle part is equipped with the second through-hole, and first valve shaft periphery is located second through-hole, third through-hole respectively.

Furthermore, a plurality of micro-exhaust holes are axially formed in the first floater, a rubber pad is arranged at the upper end of the second floater, and the rubber pad is used for covering each micro-exhaust hole.

Compared with the prior art, the air valve convenient to overhaul has the following beneficial effects: the air valve is internally provided with the maintenance valve clack and the valve seat and is used for sealing during maintenance without newly adding a maintenance gate valve or a ball valve, so that the part cost is reduced, the first floater is provided with a plurality of trace exhaust holes, the trace exhaust amount is large, even if one hole blocks the rest holes, the exhaust can be continued, and the service life is long.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation of the utility model. In the drawings:

FIG. 1 is a schematic cross-sectional view of an easy-to-service air valve disengaged service condition in accordance with an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an easy access air valve in service according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a in fig. 2.

Description of reference numerals:

1-a valve body; 101-air holes; 2-a first float; 201-micro vent hole; 3-a second float; 301-a rubber pad; 4-valve cover; 5-repairing the valve clack; 6-a first valve shaft; 7-a second valve shaft; 8-hand wheel; 9-valve seat; 901-sealing ring; 10-a fixed ring; and 11-stretching the ribs.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figures 1-3, an air valve convenient for maintenance comprises a valve body 1 and a floating body arranged in the valve body, a maintenance valve flap 5 and a center shaft, wherein the upper end of the valve body 1 is fixedly provided with a valve cover 4, the middle part of the valve cover 4 is provided with a mounting hole, the periphery of the center shaft is rotatably sleeved in the mounting hole, the upper end of the center shaft is provided with a hand wheel 8, the middle part of the floating body is provided with a slide hole, the periphery of the center shaft is positioned in the slide hole, the floating body can slide axially along the center shaft, the upper end of the valve body 1 is provided with an air vent 101, the valve cover 4 is provided with a first through hole which is communicated to the interior of the valve body 1 through the air vent 101, the axially sliding floating body is an opening and closing structure of the air vent 101, the lower end of the center shaft is in threaded connection with the maintenance valve flap 5, the periphery of the maintenance valve flap 5 is in contact connection with an inner ring at the lower end of the valve body 1, the lower end of the valve body 1 is fixedly connected to a water supply pipe, the maintenance valve flap 5 and a valve seat 9 are arranged in the air valve for sealing during maintenance, need not newly increase maintenance gate valve or ball valve, reduced the part cost, the full latus rectum structure of flowing water type, the displacement is big, is difficult to blow stifled, and detects valve clack and disk seat 9 setting at 1 internally mounted of valve body.

An inner ring at the lower end of the valve body 1 is sleeved with an overhaul valve seat 9, a sealing ring 901 is arranged at the upper end of the overhaul valve seat 9, and the periphery of the overhaul valve clack 5 is in contact connection with the periphery of the sealing ring 901.

The inside solid fixed ring 10 that sets up of valve body 1, and the axis periphery is located solid fixed ring 10 inner circle, and body, maintenance disk seat 9 are located the both sides of solid fixed ring 10 respectively, and solid fixed ring 10 periphery sets up lacing wire 11, and the both ends of lacing wire 11 are fixed connection respectively to solid fixed ring 10 periphery, valve body 1 inner circle, and maintenance valve clack 5 upper end is equipped with the spacing groove, and lacing wire 11 periphery is located the spacing inslot, and maintenance valve clack 5 lower extreme periphery contact is connected to the sealing washer 901 periphery.

The axis includes first valve shaft 6 and second valve shaft 7, and the peripheral cover of 6 lower extremes of first valve shaft is connected to solid fixed ring 10 inner circles, and the upper end of first valve shaft 6 passes slide opening, bleeder vent 101 and mounting hole back fixed cup joint hand wheel 8 in proper order, and 7 upper ends of second valve shaft fixed connection to 6 lower extremes of first valve shaft, 7 upper end peripheries of second valve shaft cup joint to solid fixed ring 10 inner circles, and 7 peripheral threaded connection of second valve shaft overhauls 5 middle parts of valve clack.

The floater comprises a first floater 2 and a second floater 3, the first floater 2 is positioned above the second floater 3, the first floater 2 and the second floater 3 are coaxially arranged, the upper end of the first floater 2 is used for covering the air holes 101, the lower end of the first floater 2 is connected to the upper end of the second floater 3 in a contact manner, the lower end of the second floater 3 is connected to the upper end of the fixing ring 10 in a contact manner, a third through hole is formed in the middle of the first floater 2, a second through hole is formed in the middle of the second floater 3, the periphery of the first valve shaft 6 is respectively positioned in the second through hole and the third through hole, a plurality of micro exhaust holes 201 are formed in the first floater 2 in the axial direction, a rubber mat 301 is arranged at the upper end of the second floater 3, the rubber pad 301 is used for covering each micro-exhaust hole 201, the first floater 2 is provided with a plurality of micro-exhaust holes 201, the micro-exhaust amount is large, even if one hole blocks the rest holes, the air can be exhausted continuously, and the service life is long.

The use process of the air valve convenient for maintenance comprises the following steps:

when the valve needs to be overhauled, the staff rotates the hand wheel 8, the hand wheel 8 drives the first valve shaft 6 and the second valve shaft 7 in proper order and rotates synchronously, the second valve shaft 7 is peripheral and overhauls 5 middle part threaded connections of valve clack, and because the lacing wire 11 is located the spacing inslot of overhauing 5 upper ends of valve clack, overhauls valve clack 5 and can not rotate with second valve shaft 7 synchronous, through the lead screw principle, pivoted second valve shaft 7 drives overhauls valve clack 5 displacement from top to bottom, thereby realize opening and shutting of overhauing valve clack 5 and disk seat 9, for the air valve of breaking away the maintenance state shown in figure 1, implement the water pipe and the inside on-state that is of valve body 1 this moment, the air valve that is in the maintenance state as shown in figure 2, implement the water pipe and the inside maintenance valve clack 5 separation of valve body 1 this moment and be off-state.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. An air valve convenient to overhaul, which is characterized in that: including valve body (1) and the body of inside setting thereof, maintenance valve clack (5) and axis, valve body (1) upper end fixed mounting valve gap (4), valve gap (4) middle part is equipped with the mounting hole, the peripheral cover of axis is connected to in the mounting hole, the axis upper end sets up hand wheel (8), the body middle part is equipped with the slide opening, and the axis periphery is located the slide opening, the body can be followed axis endwise slip, valve body (1) upper end is equipped with bleeder vent (101), be equipped with first through-hole on valve gap (4), first through-hole communicates to valve body (1) inside through bleeder vent (101), endwise slip's body is the structure that opens and shuts of bleeder vent (101), threaded connection is to maintenance valve clack (5) under the axis, maintenance valve clack (5) peripheral contact is connected to valve body (1) lower extreme inner circle, and valve body (1) lower extreme fixed connection to implements the water pipe.

2. An easy to service air valve as claimed in claim 1 wherein: the inner ring at the lower end of the valve body (1) is sleeved with an overhaul valve seat (9), a sealing ring (901) is arranged at the upper end of the overhaul valve seat (9), and the periphery of the overhaul valve clack (5) is in contact connection with the periphery of the sealing ring (901).

3. An easy to service air valve as claimed in claim 1 wherein: valve body (1) inside sets up solid fixed ring (10), and the axis periphery is located solid fixed ring (10) inner circle, the body, overhaul disk seat (9) and be located the both sides of solid fixed ring (10) respectively, gu fixed ring (10) periphery sets up lacing wire (11), and the both ends of lacing wire (11) are fixed connection to the periphery of solid fixed ring (10) respectively, valve body (1) inner circle, overhaul valve clack (5) upper end is equipped with the spacing groove, lacing wire (11) periphery is located the spacing inslot, overhaul valve clack (5) lower extreme periphery contact is connected to sealing washer (901) periphery.

4. An easy to service air valve as claimed in claim 1 wherein: the axis includes first valve shaft (6) and second valve shaft (7), first valve shaft (6) lower extreme periphery is rotated and is cup jointed to solid fixed ring (10) inner circle, the upper end of first valve shaft (6) passes the slide opening in proper order, bleeder vent (101) and mounting hole after-fixing cup joint hand wheel (8), second valve shaft (7) upper end fixed connection is to first valve shaft (6) lower extreme, the periphery of second valve shaft (7) upper end cup joints to solid fixed ring (10) inner circle, the peripheral threaded connection of second valve shaft (7) overhauls valve clack (5) middle part.

5. An easy to service air valve as claimed in claim 1 wherein: the body includes first float (2) and second float (3), first float (2) are located the top of second float (3), first float (2) and second float (3) coaxial setting, first float (2) upper end is used for covering bleeder vent (101), first float (2) lower extreme contact is connected to the upper end of second float (3), the lower extreme contact of second float (3) is connected to the upper end of solid fixed ring (10), first float (2) middle part is equipped with the third through-hole, second float (3) middle part is equipped with the second through-hole, first valve shaft (6) periphery is located the second through-hole respectively, in the third through-hole.

6. An easy to service air valve as claimed in claim 5 wherein: a plurality of micro-exhaust holes (201) are axially arranged on the first floater (2), a rubber pad (301) is arranged at the upper end of the second floater (3), and the rubber pad (301) is used for covering each micro-exhaust hole (201).

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