CN218844539U

CN218844539U - Air valve of combined air valve group

Info

Publication number: CN218844539U
Application number: CN202220880784.1U
Authority: CN
Inventors: 梁晔; 崔宝州
Original assignee: Nanjing Shaoer Machinery Equipment Co ltd
Current assignee: Nanjing Shaoer Machinery Equipment Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2023-04-11
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses an air valve of a combined air valve group, which has the key points of the technical proposal that the air valve comprises a cover body, wherein the cover body is provided with an air inlet and an air outlet, the axis of the air inlet is vertical to the axis of the air outlet, and a valve plate is connected with the cover body; the valve body is connected with the valve plate, an air inlet channel is formed in the valve body along the axial direction, and the air inlet channel and the air inlet are coaxially arranged; the valve seat is coaxially arranged in the valve body, the bottom of the valve seat provides a flow guide surface, the flow guide surface is a plane, the side wall of the valve seat is provided with a straight air suction groove for exhausting air, and an air suction gap is formed between the valve seat and the valve body; the connecting assembly is used for connecting the valve seat and the valve body. The utility model relates to a modular pneumatic valve of valves has the reduction air loss to improve the effect of air intake and gas volumetric efficiency.

Description

Air valve of combined air valve group

Technical Field

The utility model relates to a compressor unit technical field, more specifically the pneumatic valve that relates to a modular gas valve group that says so.

Background

The air valve is an important part in the reciprocating piston type compressor and one of the vulnerable parts, and the quality of the air valve directly influences the air displacement, the power consumption efficiency and the operation reliability of the compressor.

The mode of admitting air that current pneumatic valve adopted when using is the side mode of admitting air, can set up the cylinder cap on the pneumatic valve when the pneumatic valve is installed to whole compressor and is used, and the lateral wall of cylinder cap is all seted up to the air inlet and the gas vent of cylinder cap for when admitting air, the air current need rise to the top of pneumatic valve after getting into through the air inlet on the cylinder cap, thereby get into the inside circulation of pneumatic valve, the in-process that rises at the air current and get into to the pneumatic valve can cause the loss of air current. And the bottom of the flow passage in the existing air valve is provided with a conical flow guide plug or a conical flow guide surface, so that the cost of the air valve during manufacturing is increased, the arranged flow guide plug or flow guide surface can generate throttling phenomenon, and loss can be generated when gas is throttled and enters the air valve, so that the air suction amount is reduced, and meanwhile, the gas volume efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a pneumatic valve of modular gas valves has the reduction air loss to improve the effect of air-breathing volume and gaseous volume efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an air valve of a combined air valve group, comprising:

the cover body is provided with an air inlet and an air outlet, the axis of the air inlet is perpendicular to the axis of the air outlet, and the cover body is also provided with a plurality of radiating fins;

the valve plate is connected with the cover body;

the valve body is connected with the valve plate, an air inlet channel is formed in the valve body along the axial direction, and the air inlet channel and the air inlet are coaxially arranged;

the valve seat is coaxially arranged in the valve body, a flow guide surface is provided at the bottom of the valve seat, the flow guide surface is a plane, an air suction straight groove for exhausting air is formed in the side wall of the valve seat, and an air suction gap is formed between the valve seat and the valve body;

the connecting assembly is used for connecting the valve seat and the valve body.

As a further improvement of the utility model, the valve plate with still be provided with the cylinder cap copper pad between the lid.

As a further improvement, the valve body is in threaded connection with the valve plate, the outer wall of the valve body is formed with a sealing part, when the valve body is connected with the valve plate, the sealing part is in contact with the valve plate and forms zero-surface sealing.

As a further improvement, the connection assembly comprises a splicing cap, a connection sleeve and a gasket, the gasket is sleeved outside the valve body and is arranged at the end part of the valve seat far away from the valve plate, the connection sleeve is connected with the valve body and is pressed on the gasket, and the splicing cap is connected with the valve body through threads.

As a further improvement of the utility model, a plurality of exhaust through grooves are formed on the valve plate.

As a further improvement of the present invention, the exhaust channel includes a plurality of sub-channels arranged at intervals.

As a further improvement of the utility model, the air suction straight groove is provided with an air suction valve plate, and the air exhaust through groove is provided with an air exhaust valve plate;

the air suction valve plate comprises an air suction valve plate, an air suction buffer gasket and a first positioning piece, and the air exhaust valve plate comprises an air exhaust valve plate, an air exhaust buffer gasket and a second positioning piece;

the first positioning piece is connected with one end of the air suction valve plate and fixes the air suction valve plate to the air suction straight groove, the second positioning piece is connected with one end of the air discharge valve plate and fixes the air discharge valve plate to the air discharge through groove, crescent concave parts are respectively arranged on the air suction valve plate and the air discharge valve plate, the concave parts respectively divide the air suction valve plate and the air discharge valve plate into a positioning part and a tilting part, the positioning parts are respectively connected with the first positioning piece and the second positioning piece, the air suction buffer gasket is connected with the first positioning piece, and one end of the air suction buffer gasket is pressed at the concave part and extends to the tilting part;

the end parts of the tilting parts of the air suction valve plate and the exhaust valve plate, which are far away from the concave part, are respectively set to be arc-shaped.

As a further improvement, one side that the exhaust buffer spacer deviates from the exhaust valve block still is provided with the lift stopper, lift stopper one end is connected with the second setting element, the one end that the second setting element was kept away from to the lift stopper is circular-arcly.

The utility model has the advantages that: the air inlet and the air outlet are arranged on the cover body of the cylinder cover in a perpendicular mode, after the cover body is connected with the valve plate, the air inlet in the cover body is coaxial with the air inlet channel of the valve body, so that the air does not need to be lifted during air inlet, the air directly enters the scenery air inlet channel, the flow loss of air is reduced, the air is not easy to throttle due to the flow guide surface arranged at the bottom of the valve seat, the air is quickly guided, the air suction volume and the air volumetric efficiency of the air are improved, and the through-flow cross section opening of the valve body can be set to be larger due to the arrangement of the flow guide surface, so that the air suction volume and the air volumetric efficiency can be further improved.

Drawings

FIG. 1 is a schematic view showing a three-dimensional structure of a cylinder head and an air valve;

FIG. 2 is an exploded view showing a cylinder head and a gas valve;

FIG. 3 is a schematic view showing a partial structure of an exhaust valve plate;

FIG. 4 is a schematic view of a partial structure embodying a suction valve plate;

fig. 5 is a schematic cross-sectional view of a cylinder head and valve.

Reference numerals are as follows: 1. a cover body; 11. an air inlet; 12. an air outlet; 13. a heat sink; 2. a valve plate; 21. an exhaust through groove; 22. a sub-through groove; 3. a valve body; 31. an air intake passage; 32. a sealing part; 4. a valve seat; 41. a flow guide surface; 42. a straight air suction groove; 5. a connecting assembly; 51. splicing caps; 52. connecting sleeves; 53. a gasket; 6. a cylinder head copper pad; 7. a suction valve plate; 71. an air suction valve plate; 72. a suction cushion pad; 73. a first positioning member; 8. an exhaust valve plate; 81. an exhaust valve plate; 82. an exhaust buffer pad; 83. a second positioning member; 84. a lift limiter; 9. a recess; 10. an air valve cushion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 5, for the utility model relates to a specific implementation mode of modular valve group's pneumatic valve, including cylinder cap and the pneumatic valve of being connected with the cylinder cap, the cylinder cap includes lid 1, air inlet 11 and gas outlet 12 have been seted up on the lid 1, the axis of air inlet 11 sets up with the axis of gas outlet 12 is perpendicular, the lateral wall of lid 1 is seted up in the position of gas outlet 12, the top of lid 1 is seted up in the position of air inlet 11, be provided with a plurality of fin 13 on the lid 1, still be formed with the exhaust cavity in the lid 1, air inlet 11 and exhaust cavity alternate segregation, so that the gaseous in the exhaust cavity is difficult to produce the influence to the gaseous in the intake cavity, because the compressor is after work, the combustion gas is high temperature and high humidity gas, the stroke that improves gas flow is set up in the annular in exhaust cavity, and improve the radiating efficiency under the effect of fin 13.

The pneumatic valve includes valve plate 2, valve body 3, disk seat 4, coupling assembling 5, valve plate 72 and the exhaust valve plate 82 of breathing in, it is fixed through bolted connection between valve plate 2 and the lid 1, still be provided with cylinder cap copper blanket 6 between valve plate 2 and the lid 1, because the exhaust intracavity is the high temperature and high humidity's gaseous environment, choose for use cylinder cap copper blanket 6 to make difficult appearance deformation when receiving high temperature high pressure, so that form between valve plate 2 and the lid 1 sealed, the phenomenon of the gas leakage is difficult to appear. Adopt threaded connection's mode to be connected fixedly between valve body 3 and the

valve plate

2, 3 outer walls of valve body still are formed with sealing 32, when valve body 3 is connected with valve plate 2, contact between sealing 32 and the valve plate 2 and form the zero face and seal, so that receive high temperature when the organism during operation, high pressure, when the influence of high humidity and vibration, difficult appearance is not hard up between valve body 3 and the valve plate 2, the gas leakage phenomenon does not easily appear, valve plate 2 bottom still is provided with air valve pad 10, air valve pad 10 is used for increasing high-pressure gas's leakproofness.

The valve body 3 has the air inlet channel 31 along the axial direction, after the valve body 3 is connected with the valve plate 2, the air inlet channel 31 and the air inlet 11 are coaxially arranged, so that when air is fed through the air inlet 11, the air axially enters the air inlet channel 31, the air does not need to enter the air inlet channel 31 after going up the lift range of the valve body 3, thereby being difficult to generate air flow loss and improving the air inflow of the air.

The valve seat 4 is coaxially arranged in the valve body 3, the bottom of the valve seat 4 is formed with a flow guide surface 41, the flow guide surface 41 is a plane, the side wall of the valve seat 4 is provided with a straight air suction groove 42 for exhausting, the valve seat 4 and the valve body 3 are connected and fixed through a connecting component 5, after the valve seat 4 is connected with the valve body 3, an air suction gap is formed between the valve seat 4 and the valve body 3, because the bottom of the valve seat 4 is the plane flow guide surface 41, a flow guide plug or a flow guide surface 41 is arranged in the valve seat 4 in the prior art, but the flow guide plug or the flow guide surface 41 provides a conical surface, the conical surface not only increases the processing difficulty, but also generates throttling when flow guide is performed, the average flow velocity of air flow is influenced, whistle can also be generated when flow guide is performed, and in order to make flow, the opening of a through-flow section in the existing valve seat 4 is difficult to be opened enough, so that the air guide quantity is reduced, the volumetric efficiency of gas is reduced, and friction occurs between the air flow and the flow guide plug or the flow guide surface 41, so that the fluctuation of the gas pressure is smooth and the flow loss of the gas are intensified. The guide surface 41 is designed to be a plane, so that the whole valve seat 4 is simple to process, the opening degree of the through-flow section of the valve seat 4 can be freely designed according to the air inflow, the opening degree can be as large as possible, the air inflow can be further improved, the cylinder diameters of different specifications are changed according to different air inflow requirements, throttling and whistle are not easy to occur in an air inlet channel when the air flows, the air is guided out from the air suction straight groove 42 under the stable guide effect of the guide surface 41, the abrasion of the air is reduced through the axial air inlet and plane guide modes, and the air inflow and the volume efficiency of the air are improved. The planar guide surface 41 also reduces the weight of the integrated valve seat 4 and simplifies the manufacturing process.

The straight groove 42 of breathing in on disk seat 4 is a plurality of along disk seat 4 outer wall circumference array seting up, and the quantity of seting up of straight groove 42 of breathing in is directly proportional with the aperture of disk seat 4, a plurality of exhaust through groove 21 have been seted up on valve plate 2, the quantity of seting up of exhaust through groove 21 is directly proportional with the aperture of disk seat 4, exhaust through groove 21 includes the sub-through groove 22 that a plurality of intervals set up, the design of exhaust through groove 21, make more unobstructed when exhausting, carbon formation phenomenon that appears because of high temperature gas is difficult to appear in exhaust through groove 21 department, the easy possibility that blocks up has appeared in exhaust through groove 21 has been alleviated, it is provided with the valve plate 72 of breathing in straight groove 42 to breathe in straight groove 42 department, exhaust through groove 21 department sets up exhaust valve plate 82, under the effect of valve plate 72 of breathing in, make when breathing in, control opening of straight groove 42 of breathing in and breathe in, when exhausting shutoff straight groove 42, under the effect of exhaust valve plate 82, make when exhausting in exhaust, control exhaust through groove 21 of breathing in opens the exhaust and exhaust, shutoff exhaust through groove 21 when not exhausting.

The suction valve plate 72 comprises a suction valve plate 71, a suction buffer gasket 72 and a first positioning piece 73, the discharge valve plate 82 comprises a discharge valve plate 81, a discharge buffer gasket 82 and a second positioning piece 83, the first positioning piece 73 is connected with one end of the suction valve plate 71 and fixes the suction valve plate 71 to a suction straight groove 42, the second positioning piece 83 is connected with one end of the discharge valve plate 81 and fixes the discharge valve plate 81 to a discharge through groove 21, the first positioning piece 73 and the second positioning piece 83 are selected to be screws, crescent-shaped concave parts 9 are respectively arranged on the suction valve plate 71 and the discharge valve plate 81, the crescent-shaped concave parts 9 improve the overall toughness of the suction valve plate 71 and the discharge valve plate 81, the concave parts 9 respectively divide the suction valve plate 71 and the discharge valve plate 81 into a positioning part and a tilting part, the positioning parts are respectively connected with the first positioning piece 73 and the second positioning piece 83, the suction buffer gasket 72 is connected with the first positioning piece 73, one end of the suction valve plate is pressed at the concave part 9 and extends to the tilting part, so that the suction valve plate 71 is instantly tilted when air suction is performed, the tilting part is tilted in a large range, but the suction valve plate 71 is not easily broken under the action of the suction buffer gasket 72, and the suction valve plate 71 can be quickly reset, when air is discharged, the exhaust valve plate 81 is instantly tilted, the tilting part on the exhaust valve plate 81 is tilted in a large range, but the suction valve plate 71 is not easily broken under the action of the exhaust buffer gasket 82, and the suction valve plate 71 can be quickly reset, one side of the exhaust buffer gasket 82, which is far away from the exhaust valve plate 81, is further provided with a lift limiter 84, the lift limiter 84 is arranged at one side of the exhaust valve plate, which is far away from the valve plate pressing plate, so that the lift limiter 84 limits the exhaust valve plate 81 when air is discharged through the exhaust through groove 21, make exhaust valve piece 81 be difficult for appearing the fracture when receiving the atmospheric pressure impact, and lift stopper 84 and exhaust valve piece 81 adaptation in this application, the tip that the perk portion of inhaling valve plate 72 and exhaust valve plate 82 kept away from concave part 9 sets up to circular-arcly respectively, the one end that second setting element 83 was kept away from to lift stopper 84 is circular-arcly, make when exhausting, the air current passes through inhaling valve piece 71, exhaust valve piece 81 both sides and be circular-arcly tip and discharge, the exhaust direction among the prior art is the both sides exhaust of exhaust straight flute, the setting of inhaling valve piece 71, exhaust valve piece 81 and lift stopper 84 of this application has increased the through flow area, the efficiency of breathing in and exhausting has been improved.

Because the straight groove 42 of breathing in is seted up to disk seat 4 outer wall, the division in the valve body 3 has polygonal spread groove, and disk seat 4 sets up in the spread groove, because the spread groove is the polygon for disk seat 4 is being connected the back with valve body 3, sets up the valve plate 72 of breathing in that sets up in disk seat 4 lateral wall and is located the spread groove, makes disk seat 4 difficult the appearance when installing in valve body 3 and rotates along valve body 3 axis, realizes valve seat 4 and the radial relatively fixed of valve body 3.

The connecting assembly 5 comprises a splicing cap 51, a connecting sleeve 52 and a gasket 53, the gasket 53 is sleeved outside the valve body 3 and arranged at the end part of the valve seat 4 far away from the valve plate 2, when the valve seat 4 is arranged in the valve body 3, one end of the valve seat 4 far away from the flow guide surface 41 penetrates out of the valve body 3, the connecting sleeve 52 is in threaded connection with the part of the valve seat 4 penetrating out of the valve body 3, the valve seat 4 and the valve body 3 are relatively fixed along the axial direction, the gasket 53 is compressed after the connecting sleeve 52 is connected with the valve seat 4, the gasket 53 has good elasticity and recoverability, forced sealing is formed between the valve seat 4 and the valve body 3 when external force is applied, the gasket 53 can recover rapidly when the external force is not applied, and the gasket 53 is not easy to deform and age under high-temperature and high-pressure environments during working, and gas leakage is prevented. Piece together cap 51 and 3 threaded connection of valve body, and compress tightly adapter sleeve 52 when piece together cap 51 and 3 connections of valve body, make piece together cap 51, form firm sealed environment between adapter sleeve 52 and the disk seat 4, make whole difficult gaseous leakage that appears, and firmly connect

disk seat

4 and 3 of valve body, make difficult appearance not hard up at the pneumatic valve during operation, coupling assembling 5 is convenient for connect, make overall structure conveniently carry out the dismouting, and it is firm to connect back overall structure, at high temperature, difficult gaseous leakage that appears under the high-pressure environment, it is difficult for appearing not hard up when receiving the organism vibration.

The working principle and the effect are as follows:

through set up air inlet 11 and gas outlet 12 that the axis set up perpendicularly on the lid 1 at the cylinder cap, after lid 1 is connected with valve plate 2, air inlet 11 on the lid 1 is coaxial with inlet channel 31 of valve body 3, do not need to carry out the lift when making into air, but directly enter into inlet channel 31, the flow loss of gas has been reduced, the water conservancy diversion face 41 that disk seat 4 bottom provided makes gaseous difficult the appearance throttle, thereby quick water conservancy diversion to gas, with the inspiratory capacity and the gaseous volume efficiency that improve gas, and because the setting up of water conservancy diversion face 41 makes the through-flow cross-section aperture of valve body 3 can set for bigger, thereby can further improvement inspiratory capacity and gaseous volume efficiency.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An air valve of a combined air valve group, which is characterized by comprising:

the air-cooling cover comprises a cover body (1), wherein an air inlet (11) and an air outlet (12) are formed in the cover body (1), the axis of the air inlet (11) is perpendicular to the axis of the air outlet (12), and a plurality of cooling fins (13) are further arranged on the cover body (1);

the valve plate (2), the said valve plate (2) is connected with cover (1);

the valve body (3), the valve body (3) is connected with the valve plate (2), an air inlet channel (31) is formed in the valve body (3) along the axial direction, and the air inlet channel (31) and the air inlet (11) are coaxially arranged;

the valve seat (4) is coaxially arranged in the valve body (3), a flow guide surface (41) is provided at the bottom of the valve seat (4), the flow guide surface (41) is a plane, an air suction straight groove (42) for exhausting air is formed in the side wall of the valve seat (4), and an air suction gap is formed between the valve seat (4) and the valve body (3);

the connecting assembly (5), connecting assembly (5) are used for connecting valve seat (4) and valve body (3).

2. An air valve of a combined air valve set according to claim 1, characterized in that: and a cylinder cover copper gasket (6) is also arranged between the valve plate (2) and the cover body (1).

3. An air valve of a combined air valve set according to claim 1, characterized in that: the valve body (3) and valve plate (2) threaded connection, valve body (3) outer wall is formed with sealing (32), when valve body (3) and valve plate (2) are connected, sealing (32) and valve plate (2) contact and form the zero face and seal.

4. A gas valve of a combined gas valve group according to claim 3, characterized in that: coupling assembling (5) are including piecing together cap (51), adapter sleeve (52) and packing ring (53), packing ring (53) cover is located valve body (3) are outer and set up in the tip of keeping away from valve plate (2) in disk seat (4), adapter sleeve (52) are connected and are pressed with valve body (3) and establish packing ring (53), piece together cap (51) and valve body (3) threaded connection.

5. An air valve of a combined air valve set according to claim 4, characterized in that: the valve plate (2) is provided with a plurality of exhaust through grooves (21).

6. A gas valve of a combined gas valve set according to claim 5, characterized in that: the exhaust through groove (21) comprises a plurality of sub through grooves (22) arranged at intervals.

7. An air valve of a combined air valve set according to claim 6, characterized in that: the air suction straight groove (42) is provided with an air suction valve plate (7), and the exhaust through groove (21) is provided with an exhaust valve plate (8);

the air suction valve plate (7) comprises an air suction valve plate (71), an air suction buffer gasket (72) and a first positioning piece (73), and the air exhaust valve plate (8) comprises an air exhaust valve plate (81), an air exhaust buffer gasket (82) and a second positioning piece (83);

the air suction valve plate structure is characterized in that a first positioning piece (73) is connected with one end of an air suction valve plate (71) and fixes the air suction valve plate (71) to an air suction straight groove (42), a second positioning piece (83) is connected with one end of an air discharge valve plate (81) and fixes the air discharge valve plate (81) to an air discharge through groove (21), crescent-shaped concave parts (9) are respectively arranged on the air suction valve plate (71) and the air discharge valve plate (81), the concave parts (9) respectively divide the air suction valve plate (71) and the air discharge valve plate (81) into positioning parts and tilting parts, the positioning parts are respectively connected with the first positioning piece (73) and the second positioning piece (83), an air suction buffer gasket (72) is connected with the first positioning piece (73), and one end of the air suction buffer gasket is pressed at the concave part (9) and extends to the tilting part;

the end parts of the tilting parts of the air suction valve plate (7) and the exhaust valve plate (8) far away from the concave part (9) are respectively arranged to be arc-shaped.

8. An air valve of a combined air valve set according to claim 7, characterized in that: one side of the exhaust buffer gasket (82) departing from the exhaust valve plate (81) is further provided with a lift limiter (84), one end of the lift limiter (84) is connected with the second positioning piece (83), and one end, away from the second positioning piece (83), of the lift limiter (84) is arc-shaped.