CN215172577U - Micro-exhaust structure of air valve - Google Patents

Abstract

The utility model provides a trace exhaust structure of air valve, valve body upper end fixed mounting valve gap, and the valve body upper end is equipped with big drill way, in partition panel upper end fixed connection to big drill way, and the partition panel is located the valve body, the partition panel is the tubbiness structure, partition panel upper portion periphery is equipped with the unit of ventilating, inside the looping through unit of ventilating of valve body, partition panel inside, big drill way, the inside intercommunication of valve gap to outside atmosphere, axis upper end peripheral fixed mounting to end cover top, the core subassembly floats is cup jointed to the end cover periphery. A trace exhaust structure of air valve, after the water flowed into the two-phase flow, first kickboard pressurized continuously kept the shutoff state in big drill way, second kickboard pressurized and self gravity influence move down along centraxonial axial, rubber ring and air flue production gap, compressed gas is through air flue, the inside investigation of axis to outside atmosphere, along with compressed gas's discharge, has ensured the effective discharge of two-phase flow internal gas.

Description

Micro-exhaust structure of air valve

Technical Field

The utility model belongs to the air valve field especially relates to a trace exhaust structure of air valve.

Background

The air valve is a special valve used to prevent transient decompression waves from generating negative pressure in the pipe. It is lower that it is usually installed at pipeline normal operating hydrodynamic pressure, the transient flow in-process, the high point position that probably produces liquid column separation, when the pipeline internal pressure is less than atmospheric pressure intake air, and when the pipeline pressure rise is higher than atmospheric pressure exhaust air, in the exhaust process, the valve can self-closing when intraductal liquid is full of the pipeline, do not allow liquid to let out the atmosphere, the air valve generally belongs to automatic valve at present, passive work under the effect of water and air, two-phase flow universal appearance in long-distance pipeline, need separate the gas-liquid in the pipeline, prevent that the pipeline is inside to suppress the pressure and cause the transport unsmooth.

Disclosure of Invention

In view of this, the utility model aims at providing a micro exhaust structure of air valve to solve the problem that two-phase flow can not effective gas-liquid separation in the long-distance pipeline, and the pipeline is interior to be suppressed locally and to press the influence pipeline capacity.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a trace exhaust structure of air valve, which comprises a valve body, the valve gap, the partition panel, axis and floating core subassembly, valve body upper end fixed mounting valve gap, and the valve body upper end is equipped with big drill way, partition panel upper end fixed connection is in the big drill way, and the partition panel is located the valve body, the partition panel is the tubbiness structure, partition panel upper portion periphery is equipped with the ventilation unit, the valve body is inside to loop through the ventilation unit, the partition panel is inside, big drill way, the valve gap is inside to communicate to outside atmosphere, axis upper end periphery fixed mounting to end cover top, the floating core subassembly is cup jointed to the end cover periphery, and the floating core subassembly is located inside the partition panel, the peripheral contact of floating core subassembly upper end is connected to big drill way inner circle.

Further, the floating core assembly comprises a first floating plate, a second floating plate, a stop block and a baffle plate, wherein the middle shaft is of a hollow pipe body structure, the stop block is fixedly installed on the periphery of the middle shaft, the periphery of the middle shaft is connected with the middle part of the first floating plate in a sliding mode and the middle part of the second floating plate, the upper end of the stop block is connected to the lower end of the first floating plate in a contact mode, the lower end of the stop block is connected to the upper end of the second floating plate in a contact mode, an air passage is formed in the stop block and communicated to the inside of the middle shaft, the air inlet end of the air passage is located at the lower end of the stop block, the second floating plate and the stop block move relatively to form an opening and closing structure of the air passage, the baffle plate is installed at the lower end of the middle shaft, and the upper end of the baffle plate is connected to the lower end of the second floating plate in a contact mode.

Further, the floating core assembly further comprises a roller shutter type sealing washer, an inner ring of the roller shutter type sealing washer is fixedly connected to an inner ring of the stop block, the periphery of the roller shutter type sealing washer is fixedly connected to the upper end of the second floating body, and the upper end of the roller shutter type sealing washer is in contact connection with the lower end of the stop block.

Further, the roll-up seal washer comprises an inner buckle, a rubber ring and an outer buckle which are of an integrated structure, the inner ring of the rubber ring is fixedly connected to the inner ring of the stop block through the inner buckle, the periphery of the rubber ring is fixedly connected to the upper end of the second floating plate through the outer buckle, and the upper end of the rubber ring is in contact connection with the lower end of the stop block.

Furthermore, the lower end of the stop block is of a circular truncated cone structure, and the upper end of the rubber ring is in contact connection with the peripheral slope surface of the circular truncated cone structure.

Furthermore, one end of the inner buckle is provided with an annular boss, the lower end of the check block is provided with an annular groove, the periphery of the annular boss is located in the annular groove, and the other end of the inner buckle is fixedly connected with a check ring.

Furthermore, set up first ring body on the second body, first ring body and second body set up with one heart, and the internal diameter of first ring body is less than the external diameter of dog, and the external diameter of first ring body is greater than the external diameter of dog, and the peripheral fixed connection of rubber ring is to the one end inner circle of detaining outward, and the upper end that passes through clamping ring fixed mounting to first ring body of detaining outward is peripheral.

Furthermore, a groove is formed in the lower end of the first floating plate, and the stop block is located in the groove.

Furthermore, the partition plate lower extreme is equipped with the overflow hole, and blocks that the installation of board lower extreme is used for preventing the shielding plate of water torrent second kickboard.

Further, the valve gap includes the lid, gusset and flange, the lid is the tubbiness structure of back-off, the apron middle part is equipped with first through-hole, centraxonial upper end periphery fixed mounting is to in the first through-hole, the one end fixed connection of flange is to the upper end of valve body, the other end of flange passes through the top inner wall of a plurality of gusset fixed connection to lid, and the radial equipartition of flange is followed to a plurality of gussets, be equipped with first gap between two liang of gussets, be equipped with the second gap between lid and the valve body, the valve body is inside to loop through the unit of ventilating, the partition panel is inside, big drill way, first gap and second gap communicate to outside atmosphere.

Compared with the prior art, a micro-exhaust structure of air valve have following beneficial effect:

(1) a trace exhaust structure of air valve, when the pipeline rushes into the water, gaseous pressurized in the pipeline is through the valve body inner chamber, the unit of ventilating, big drill way and valve gap are inside to spill over to outside atmosphere, carry out conventional exhaust, along with rushing into the water in the valve body, the big drill way is floated the core subassembly shutoff, after the water flows in the two-phase flow, gas in the water this moment is compressed gas, first kickboard pressurized lasts at big drill way and keeps the shutoff state, second kickboard pressurized and self gravity influence move down along centraxonial axial, rubber ring and air flue produce the gap, compressed gas is through the air flue, the inside investigation of axis to outside atmosphere, along with compressed gas's discharge, the effective discharge of gaseous in the two-phase flow has been ensured.

(2) A trace exhaust structure of air valve, for the stability of ensureing to roll up the installation of curtain formula seal ring, roll up curtain formula seal ring and include interior knot, rubber ring and the outer knot of a body structure, the upper end contact of rubber ring is connected to simultaneously on the peripheral domatic of round platform structure, guaranteed the sensitivity that roll up curtain formula seal ring opened and shut to and overcome the pressure influence of water pressure atmospheric pressure to the rubber ring, guarantee air flue exhaust accurate node.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic cross-sectional view of a micro air venting structure of an air valve according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a in fig. 1.

Description of reference numerals:

1-a valve body; 2-valve cover; 3-partition board; 4-the medial axis; 5-a floating core assembly; 51-a first float plate; 52-a second float plate; 521-a first ring body; 53-a stop; 54-a baffle; 55-inner buckling; 56-rubber ring; 57-external buckling; 58-pressing ring; 59-a retainer ring; 6-large orifice.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments 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 the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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

A micro exhaust structure of an air valve comprises a valve body 1, a valve cover 2, a partition panel 3, a middle shaft 4 and a floating core assembly 5, wherein the valve cover 2 is fixedly installed at the upper end of the valve body 1, a large hole opening 6 is formed in the upper end of the valve body 1, the upper end of the partition panel 3 is fixedly connected into the large hole opening 6, the partition panel 3 is positioned in the valve body 1, the partition panel 3 is of a barrel-shaped structure, a ventilation unit is arranged on the periphery of the upper portion of the partition panel 3, the interior of the valve body 1 sequentially passes through the ventilation unit, the interior of the partition panel 3, the large hole opening 6 and the interior of the valve cover 2 to be communicated with the outside atmosphere, the periphery of the upper end of the middle shaft 4 is fixedly installed to the top of an end cover, the periphery of the end cover is sleeved with the floating core assembly 5, the floating core assembly 5 is positioned in the partition panel 3, the periphery of the upper end of the floating core assembly 5 is in contact with the large hole opening 6, an overflow hole is formed in the lower end of the partition panel 3, the lower end of the partition panel is provided with a shielding plate 54 for preventing a second floating plate 52 of water body from torrent, the pipeline uses the initial stage, it breaks away from the contact to receive gravity and the inner circle of macropore 6 to float core subassembly 5, when the pipeline rushes into the water, gaseous pressurized in the pipeline is through 1 inner chambers of valve body, the unit of ventilating, inside spilling over to outside atmosphere of macropore 6 and valve gap 2, along with rushing into the water in the valve body 1, the water is through 1 inner chambers of valve body, inside the overflow hole inflow baffle, along with valve body 1, the rising of the inside water of baffle, it risees to float core subassembly 5 by water buoyancy, and progressively with 6 shutoff in the macropore, the effectual water that has prevented in the valve body 1 after exporting pipeline and the interior gas of valve body 1 smoothly spills over.

The floating core component 5 comprises a first floating plate 51, a second floating plate 52, a stop 53 and a baffle 54, wherein the middle shaft 4 is of a hollow pipe structure, the stop 53 is fixedly installed on the periphery of the middle shaft 4, the periphery of the middle shaft 4 is in sliding connection with the middle part of the first floating plate 51 and the middle part of the second floating plate 52, the upper end of the stop 53 is in contact connection with the lower end of the first floating plate 51, the lower end of the first floating plate 51 is provided with a groove, the stop 53 is positioned in the groove, the lower end of the stop 53 is in contact connection with the upper end of the second floating plate 52, the stop 53 is provided with an air passage which is communicated with the interior of the middle shaft 4, the air inlet end of the air passage is positioned at the lower end of the stop 53, the second floating plate 52 and the stop 53 move relatively to form an opening and closing structure of the air passage, the baffle 54 is installed at the lower end of the middle shaft 4, the upper end of the baffle 54 is in contact connection with the lower end of the second floating plate 52, in the process of normally conveying water by a pipeline, gas in a two-phase flow is conveyed to the interior of the valve body 1 by a water body, at the moment, the gas is compressed gas, the first floating plate 51 is pressed at the large orifice 6 to continuously keep a blocking state, along with the gradual increase of the compressed gas in the partition plate, the second floating plate 52 is pressed and is downwards moved along the axial direction of the central shaft 4 under the influence of self gravity, a gap is generated between the rubber ring 56 and the gas passage, the compressed gas is exhausted to the outside atmosphere through the gas passage and the inside of the central shaft 4, along with the discharge of the compressed gas, the water level in the partition plate rises to cause the second floating plate 52 to be upwards moved by buoyancy, and the gas passage is blocked, namely, the gas is not exhausted.

Float core subassembly 5 still includes roll up curtain formula seal ring, roll up the inner circle fixed connection to dog 53 of curtain formula seal ring, roll up the upper end of curtain formula seal ring's peripheral fixed connection to second body, roll up the upper end contact connection of curtain formula seal ring to dog 53's lower extreme, roll up the sealing performance that curtain formula seal ring is used for guaranteeing the air flue structure that opens and shuts, prevent that the water from by the air flue overflow, roll up the action of curtain formula seal ring and roll along the round platform, consequently, not influenced by the medium quilt pressure, can freely reciprocate, open the air flue, compare the total area of a plurality of air flues with prior art and be greater than the exhaust area of conventional little exhaust structure, the exhaust ability of trace has been increased.

In order to ensure the installation stability of the rolling shutter type sealing washer, the rolling shutter type sealing washer comprises an inner buckle 55, a rubber ring 56 and an outer buckle 57 which are of an integral structure, the inner ring of the rubber ring 56 is fixedly connected to the inner ring of the stop block 53 through the inner buckle 55, the periphery of the rubber ring 56 is fixedly connected to the upper end of the second floating plate 52 through the outer buckle 57, the upper end of the rubber ring 56 is in contact connection with the lower end of the stop block 53, in order to ensure the opening and closing sensitivity of the rolling shutter type sealing washer and overcome the pressure influence of water pressure and air pressure on the rubber ring 56, the lower end of the stop block 53 is of a circular table structure, the upper end of the rubber ring 56 is in contact connection with the peripheral slope surface of the circular table structure, when the water pressure and the air pressure act on the rubber ring 56, the slight displacement of the second floating plate 52 and the stop block 53 can open and close the air passage, the accurate node of air exhaust is ensured, one end of the inner buckle 55 is provided with an annular boss, the lower end of the stop block 53 is provided with an annular groove, the periphery of the annular boss is positioned in the annular groove, the other end of the inner buckle 55 is fixedly connected with a retaining ring 59, and the retaining ring 59 is used for locking the relative position of the inner buckle 55 so as to be convenient for installation.

The first ring body 521 is arranged on the second floating body, the first ring body 521 and the second floating body are concentrically arranged, the inner diameter of the first ring body 521 is smaller than the outer diameter of the stop block 53, the outer diameter of the first ring body 521 is larger than the outer diameter of the stop block 53, the periphery of the rubber ring 56 is fixedly connected to the inner ring at one end of the outer buckle 57, the outer buckle 57 is fixedly installed to the periphery of the upper end of the first ring body 521 through the pressing ring 58, and the pressing ring 58 is used for ensuring that the relative position of the locking outer buckle 57 is convenient to install.

For preventing that foreign matter gets into inside valve body 1 when floating plate does not block off the big gas pocket, valve gap 2 includes the lid, gusset and flange, the lid is the tubbiness structure of back-off, the apron middle part is equipped with first through-hole, the peripheral fixed mounting in the upper end of axis 4 is to first through-hole in, the one end fixed connection of flange to the upper end of valve body 1, the other end of flange passes through the top inner wall of a plurality of gusset fixed connection to lids, and the radial equipartition of flange is followed to a plurality of gussets, be equipped with first gap between two liang of gussets, be equipped with the second gap between lid and the valve body 1, valve body 1 is inside to loop through the ventilation unit, partition panel 3 is inside, large pore 6, first gap and second gap communicate to outside atmosphere.

The lower end of the first floating body is connected to the upper end of the second floating body in a contact mode, a plurality of through holes are formed in the side wall of the first annular body 521 in the radial direction and used for draining water inside the first annular body 521.

The working principle of the micro-exhaust structure of the air valve is as follows:

when the pipeline is filled with water in the initial stage, a gap is reserved between the floating core assembly 5 and the large hole 6 at the moment, the valve is in an open state, a large amount of air is discharged from the large hole 6 to eliminate air resistance of the pipeline, after the air in the pipeline is discharged, water enters the valve body 1, the second floating plate 52 rises under the buoyancy action of the water, the second floating plate 52 sequentially passes through the stop block 53 to drive the first floating plate 51 to rise, the periphery of the upper end of the first floating plate 51 is sealed in the large hole 6, the large hole 6 is closed, when the water flows through the valve body 1, the pipeline has two-phase flow, when the water flows through the floating core assembly 5 to lift the valve, due to the action of water pressure, the air which flows again at the moment is compressed air, the first floating plate 51 is continuously sealed to the large hole 6 under the pressure, the compressed air cannot be discharged from the large hole 6, the compressed air in the partition gradually increases along with the pressure of the compressed air in the partition, the second floating plate 52 and the influence of self gravity move downwards along the axial direction of the main shaft, compressed air is discharged from the air passage and the inside of the main shaft, when the compressed air is discharged, the water level rises, the second floating plate 52 rises under the action of buoyancy, the roller shutter type sealing washer blocks the air passage, the inner cavity of the valve is isolated from the atmosphere at the moment, the pipeline and the valve body 1 run conventionally, trace air continuously enters the air valve, the second floating plate 52 moves up and down, and the trace air is discharged from the air passage continuously.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A micro air bleeding structure of an air valve, characterized in that: comprises a valve body (1), a valve cover (2), a partition plate (3), a middle shaft (4) and a floating core component (5), wherein the valve cover (2) is fixedly arranged at the upper end of the valve body (1), and the upper end of the valve body (1) is provided with a large orifice (6), the upper end of the partition plate (3) is fixedly connected into the large orifice (6), the partition plate (3) is positioned in the valve body (1), the partition plate (3) is of a barrel-shaped structure, the periphery of the upper part of the partition plate (3) is provided with a ventilation unit, the interior of the valve body (1) is communicated with the outside atmosphere through the ventilation unit, the interior of the partition plate (3), the large hole opening (6) and the interior of the valve cover (2) in sequence, the periphery of the upper end of the middle shaft (4) is fixedly arranged to the top of the end cover, the periphery of the end cover is sleeved with a floating core assembly (5), and the floating core assembly (5) is positioned inside the partition plate (3), and the periphery of the upper end of the floating core assembly (5) is in contact connection with the inner ring of the large orifice (6).

2. A micro air bleeding structure of an air valve according to claim 1, wherein: the floating core assembly (5) comprises a first floating plate (51), a second floating plate (52), a stop block (53) and a baffle plate (54), the middle shaft (4) is of a hollow pipe body structure, the stop block (53) is fixedly installed on the periphery of the middle shaft (4), the periphery of the middle shaft (4) is in sliding connection with the middle part of the first floating plate (51), the middle part of the second floating plate (52), the upper end of the stop block (53) is in contact connection with the lower end of the first floating plate (51), the lower end of the stop block (53) is in contact connection with the upper end of the second floating plate (52), an air passage is arranged on the stop block (53) and communicated to the interior of the middle shaft (4), the air inlet end of the air passage is located at the lower end of the stop block (53), the second floating plate (52) and the stop block (53) move relatively to form an opening and closing structure of the air passage, the baffle plate (54) is installed at the lower end of the middle shaft (4), and the upper end of the baffle plate (54) is in contact connection with the lower end of the second floating plate (52).

3. A micro air bleeding structure of an air valve according to claim 2, wherein: the floating core assembly (5) further comprises a roller shutter type sealing washer, an inner ring of the roller shutter type sealing washer is fixedly connected to an inner ring of the stop block (53), the periphery of the roller shutter type sealing washer is fixedly connected to the upper end of the second floating body, and the upper end of the roller shutter type sealing washer is connected to the lower end of the stop block (53) in a contact mode.

4. A micro air bleeding structure of an air valve according to claim 3, wherein: the rolling curtain type sealing washer comprises an inner buckle (55), a rubber ring (56) and an outer buckle (57) which are of an integral structure, the inner ring of the rubber ring (56) is fixedly connected to the inner ring of the stop block (53) through the inner buckle (55), the periphery of the rubber ring (56) is fixedly connected to the upper end of the second floating plate (52) through the outer buckle (57), and the upper end of the rubber ring (56) is in contact connection with the lower end of the stop block (53).

5. A micro air bleeding structure of an air valve according to claim 4, wherein: the lower end of the stop block (53) is of a circular truncated cone structure, and the upper end of the rubber ring (56) is in contact connection with the peripheral slope surface of the circular truncated cone structure.

6. A micro air bleeding structure of an air valve according to claim 4, wherein: one end of the inner buckle (55) is provided with an annular boss, the lower end of the stop block (53) is provided with an annular groove, the periphery of the annular boss is positioned in the annular groove, and the other end of the inner buckle (55) is fixedly connected with a check ring (59).

7. A micro air bleeding structure of an air valve according to claim 4, wherein: set up first ring body (521) on the second body, first ring body (521) and second body concentric setting, the internal diameter of first ring body (521) is less than the external diameter of dog (53), the external diameter of first ring body (521) is greater than the external diameter of dog (53), the peripheral fixed connection of rubber ring (56) is to the one end inner circle of outer knot (57), the upper end periphery of outer knot (57) through clamping ring (58) fixed mounting to first ring body (521).

8. A micro air bleeding structure of an air valve according to claim 1, wherein: the lower end of the first floating plate (51) is provided with a groove, and the stop block (53) is positioned in the groove.

9. A micro air bleeding structure of an air valve according to claim 1, wherein: the lower end of the partition plate (3) is provided with an overflow hole, and the lower end of the partition plate is provided with a shielding plate (54) for preventing the water body from torrent of the second floating plate (52).

10. A micro air bleeding structure of an air valve according to claim 1, wherein: valve gap (2) includes the lid, gusset and flange, the lid is the tubbiness structure of back-off, the apron middle part is equipped with first through-hole, the peripheral fixed mounting in upper end to first through-hole of axis (4), the one end fixed connection of flange is to the upper end of valve body (1), the other end of flange passes through the top inner wall of a plurality of gusset fixed connection to lids, and the radial equipartition of flange is followed to a plurality of gussets, be equipped with first gap between two liang of gussets, be equipped with the second gap between lid and valve body (1), valve body (1) inside loops through the ventilation unit, partition panel (3) are inside, macropore (6), first gap and second gap communicate to outside atmosphere.

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