CN114165720A

CN114165720A - Drainage device for air storage tank of air compressor

Info

Publication number: CN114165720A
Application number: CN202111431115.2A
Authority: CN
Inventors: 刘勇; 陈欢
Original assignee: Huaneng Yantai Bajiao Thermoelectricity Co Ltd
Current assignee: Huaneng Yantai Bajiao Thermoelectricity Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-03-11
Anticipated expiration: 2041-11-29
Also published as: CN114165720B

Abstract

The invention discloses a drainage device of an air storage tank of an air compressor, which comprises an air storage tank body; and a drainage assembly, which is arranged at the bottom of the gas storage tank body and comprises a drainage pipe, a shell, a mounting plate, a first moving part, a second moving part, a flow guide part, an adjusting part and an exhaust part, wherein the drainage pipe is communicated with the bottom of the gas storage tank body, the shell is fixed at one end of the drainage pipe, the mounting plate is arranged in the shell, the first moving part is positioned on the mounting plate, and the second moving part is arranged below the first moving part. According to the invention, through the arrangement of the drainage component, the gas storage tank can realize automatic drainage, manual drainage at regular intervals is not needed, the working efficiency is higher, meanwhile, gas leakage can be effectively avoided in the drainage process, and the gas exhaust and pollution discharge are more convenient.

Description

Drainage device for air storage tank of air compressor

Technical Field

The invention relates to the technical field of air compressor air storage tanks, in particular to a drainage device for an air compressor air storage tank.

Background

The air compressor is a device for compressing gas, the air compressor is similar with the water pump structure, most of air compressors are of reciprocating piston type, rotating blades or rotating screws, the centrifugal compressor is a very big application program, the air compressor can be equipped with the gas holder and use, the air compressor gas holder among the prior art generally adopts manual valve to drain water, this just needs the staff to regularly carry out the drainage operation, it is extremely inconvenient, and discharge the gas in the gas holder simultaneously when the drainage, cause certain waste and inconvenience.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the prior art drainage device for an air storage tank of an air compressor.

Therefore, the problem to be solved by the present invention is that the air storage tank of the air compressor in the prior art generally adopts a manual valve for draining, which requires a worker to perform a draining operation regularly, and is very inconvenient, and the air in the air storage tank is easy to be discharged simultaneously during draining, thereby causing certain waste and inconvenience.

In order to solve the technical problems, the invention provides the following technical scheme: a drainage device of an air storage tank of an air compressor comprises an air storage tank body; and a drainage assembly, which is arranged at the bottom of the gas storage tank body and comprises a drainage pipe, a shell, a mounting plate, a first moving part, a second moving part, a flow guide part, an adjusting part and an exhaust part, wherein the drainage pipe is communicated with the bottom of the gas storage tank body, the shell is fixed at one end of the drainage pipe, the mounting plate is arranged in the shell, the first moving part is positioned on the mounting plate, the second moving part is arranged below the first moving part, the flow guide part is arranged on the inner wall of the shell, the adjusting part is arranged on the side surface of the shell, and the exhaust part is positioned above the adjusting part.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the first moving part comprises a connecting rod, a first fixed plug and a floating block, a first through hole is formed in the mounting plate, the first fixed plug is located in the first through hole, the connecting rod is fixed on the first fixed plug, and the floating block is fixed at the top end of the connecting rod and located above the first fixed plug.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: inclined planes are arranged on two sides of the floating block, and first arc surfaces are arranged at the tops of two sides of the floating block.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the second moving part comprises a second fixing plug and an impeller, the second fixing plug is fixed at the bottom end of the connecting rod, the impeller is rotatably connected to the connecting rod and located below the mounting plate, a second through hole is formed in the bottom of the shell, and the second fixing plug is located in the second through hole.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the second moving part further comprises a limiting ring, a limiting plate and a reset spring, the limiting ring is located on the surface of the connecting rod, one end of the limiting plate is fixed to the inner wall of the shell, the other end of the limiting plate is fixed to the limiting ring, and two ends of the reset spring are fixed to the limiting ring and the second fixing plug respectively.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the water conservancy diversion spare includes guide plate, fly leaf, articulated seat and compression spring, the inlet opening has been seted up to the casing side, the guide plate is fixed in shells inner wall, and be located the inlet opening top, the fly leaf passes through articulated seat articulate in shells inner wall, the guide plate is located the fly leaf top, the compression spring both ends respectively with the casing with the fly leaf is fixed.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: one side of the bottom of the movable plate is provided with a second cambered surface, the top of the movable plate is provided with a guide groove, and the guide plate is positioned above the guide groove.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the regulating part includes movable rod, fixed pipe, solid fixed ring, fixed spring and trigger tube, the movable rod set up in the casing side, fixed pipe is fixed in the casing outside, gu fixed ring is fixed in the movable rod surface, and be located in the fixed pipe, fixed spring install in gu fixed ring is inboard, the trigger tube with movable rod one end is fixed, and the cover is located gu the pipe outside.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the air exhaust piece comprises a third fixed plug and a connecting plate, an air outlet is formed in the side face of the shell, the third fixed plug is located in the air outlet, the connecting plate is located in the shell, and two ends of the connecting plate are respectively fixed with the third fixed plug and the movable rod.

As a preferable scheme of the drainage device of the air storage tank of the air compressor, the drainage device of the air storage tank of the air compressor comprises the following components: the exhaust piece further comprises a rotating wheel and a filter pipe, the rotating wheel is rotatably connected to the outer side of the third fixing plug, the filter pipe is fixed to the outer side of the shell, and the rotating wheel is located in the filter pipe.

The invention has the beneficial effects that: according to the invention, through the arrangement of the drainage component, the gas storage tank can realize automatic drainage, manual drainage at regular intervals is not needed, the working efficiency is higher, meanwhile, gas leakage can be effectively avoided in the drainage process, and the gas exhaust and pollution discharge are more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is an overall structure view of a drainage device of an air storage tank of an air compressor.

Fig. 2 is a structure view of a drainage assembly of a drainage device of an air storage tank of an air compressor.

Fig. 3 is a connection structure diagram of a first movable member and a second movable member of a drainage device of an air storage tank of an air compressor.

Fig. 4 is a structure view of a flow guide member of a drainage device of an air storage tank of an air compressor.

Fig. 5 is an exploded view of the connection between the adjusting member and the air discharging member of the drainage device of the air storage tank of the air compressor.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 and 2, a first embodiment of the present invention provides a drainage device for an air compressor air storage tank, which includes an air storage tank body 100 and a drainage assembly 200, and the drainage assembly 200 automatically drains water and sewage from the air storage tank body 100, so that manual periodic operation is not required, and the working efficiency is higher.

Specifically, the gas tank body 100.

The drainage assembly 200 is arranged at the bottom of the air storage tank body 100 and comprises a drainage pipe 201, a shell 202, a mounting plate 203, a first movable piece 204, a second movable piece 205, a flow guide piece 206, an adjusting piece 207 and an exhaust piece 208, wherein the drainage pipe 201 is communicated with the bottom of the air storage tank body 100, the shell 202 is fixed at one end of the drainage pipe 201, the mounting plate 203 is arranged in the shell 202, the first movable piece 204 is positioned on the mounting plate 203, the second movable piece 205 is arranged below the first movable piece 204, the flow guide piece 206 is arranged on the inner wall of the shell 202, the adjusting piece 207 is arranged on the side surface of the shell 202, and the exhaust piece 208 is positioned above the adjusting piece 207.

Water and gas in the gas storage tank body 100 are led into the shell 202 through the drain pipe 201, the first movable piece 204 and the second movable piece 205 are driven by the impact force and buoyancy of the water to automatically discharge the water, and the water is guided by the guide piece 206 at the moment, so that the drainage efficiency is improved; then, manual air exhaust and pollution discharge operations can be performed through the adjusting piece 207 and the air exhaust piece 208, and the overhauling and working efficiency of workers is improved.

Example 2

Referring to fig. 2 to 4, a second embodiment of the present invention is based on the above embodiment.

Specifically, the first movable member 204 includes a connecting rod 204a, a first fixed plug 204b and a floating block 204c, a first through hole S1 is opened on the mounting plate 203, the first fixed plug 204b is located in the first through hole S1, the connecting rod 204a is fixed on the first fixed plug 204b, and the floating block 204c is fixed at the top end of the connecting rod 204a and located above the first fixed plug 204 b.

When water is continuously guided into the housing 202 from the drain pipe 201 and fills the housing 202, the floating block 204c is lifted upwards by the buoyancy of the water, the connecting rod 204a and the first fixing plug 204b are driven to move upwards by the floating block 204c, at this time, the first through hole S1 is opened, and the water can be guided out through the first through hole S1; the first fixing plug 204b is provided with a guide block and an L-shaped stopper for guiding the same and preventing deviation in the up-and-down movement process.

Inclined surfaces 204d are arranged on two sides of the floating block 204c, and first arc surfaces 204e are arranged on the tops of two sides of the floating block 204 c.

The inclined planes 204d are distributed at the middle parts of the two sides of the floating block 204c and tend to expand outwards from bottom to top, and water flow is extruded by pressure and impacts on the inclined planes 204d, so that the floating block 204c is subjected to oblique upward impact force, and the upward movement efficiency of the floating block 204c is improved under the combined action of the oblique upward impact force and the buoyancy of the received water, and the drainage sensitivity and efficiency are further improved; after the water is discharged, the gas is dispersed through the first arc surface 204e, and the upward moving force applied to the floating block 204c by the gas is reduced, so that the first through hole S1 is closed when the gas enters the housing 202, and gas leakage is avoided.

The second movable member 205 includes a second fixed plug 205a and an impeller 205b, the second fixed plug 205a is fixed to the bottom end of the connecting rod 204a, the impeller 205b is rotatably connected to the connecting rod 204a and located below the mounting plate 203, the bottom of the housing 202 is provided with a second through hole S2, and the second fixed plug 205a is located in the second through hole S2.

When the floating block 204c and the connecting rod 204a move upward, the second fixing plug 205a is simultaneously driven to move upward, so that the second through hole S2 is opened to discharge water, and at the same time, the water flowing downward from the first through hole S1 drives the impeller 205b to rotate, so that the flow speed of the water in the housing 202 is increased by the rotation of the impeller 205b, and the water can be more efficiently discharged from the second through hole S2.

The second movable member 205 further includes a limit ring 205c, a limit plate 205d, and a return spring 205e, the limit ring 205c is located on the surface of the connection rod 204a, one end of the limit plate 205d is fixed to the inner wall of the housing 202, the other end of the limit plate is fixed to the limit ring 205c, and two ends of the return spring 205e are respectively fixed to the limit ring 205c and the second fixing plug 205 a.

The limiting ring 205c and the limiting plate 205d are used for limiting the connecting rod 204a to prevent the connecting rod 204a from deviating in the up-and-down moving process, and under the combined action of the limiting ring, the guiding block and the L-shaped limiting block, the connecting rod 204a can only move up and down and cannot rotate, then a downward force is applied to the second fixing plug 205a through the return spring 205e, after water is discharged, the buoyancy of the water is insufficient to lift the floating block 204c, at the moment, the second fixing plug 205a is pushed downwards through the return spring 205e to reset the floating block, the second through hole S2 is closed, and meanwhile, the first fixing plug 204b closes the first through hole S1, so that gas leakage is avoided.

The guide member 206 includes a guide plate 206a, a movable plate 206b, a hinge seat 206c and a compression spring 206d, a water inlet hole S3 is formed in the side surface of the housing 202, the guide plate 206a is fixed to the inner wall of the housing 202 and is located at the top of the water inlet hole S3, the movable plate 206b is hinged to the inner wall of the housing 202 through the hinge seat 206c, the guide plate 206a is located above the movable plate 206b, and two ends of the compression spring 206d are respectively fixed to the housing 202 and the movable plate 206 b.

The guide plate 206a is in a semicircular arc shape and is positioned at the top of the water inlet hole S3, when water rushes out of the water inlet hole S3, most of the water is guided by the guide plate 206a, the movable plate 206b is impacted, the movable plate 206b is enabled to be inclined downwards, the inclined plane 204d can be impacted by the water, and then the floating block 204c can float upwards to perform drainage operation;

when the water is discharged, gas enters the shell 202 through the water inlet hole S3, the floating block 204c loses buoyancy and impact force and moves downwards, the second through hole S2 and the first through hole S1 are closed, the movable plate 206b is pushed to move upwards through the compression spring 206d at the moment, the hinge base 206c is provided with a limiting block, the movable plate 206b is limited through the limiting block, the movable plate is prevented from moving upwards by too large angle, the use is influenced, the gas is guided to the upper part of the floating block 204c through the guide plate 206a and the movable plate 206b at the moment, the floating block 204c is extruded downwards, the gas leakage is further avoided, when the pressure in the shell 202 is stable, the floating block 204c also tends to be stable, and the gas leakage is avoided.

A second arc surface 206e is disposed on one side of the bottom of the movable plate 206b, a flow guide groove M is disposed on the top of the movable plate 206b, and the flow guide plate 206a is located above the flow guide groove M.

The second arc surface 206e contacts with the first arc surface 204e, so that the smoothness of the contact between the movable plate 206b and the floating block 204c is improved, the movable plate 206b is prevented from blocking the floating block 204c when the floating block floats upwards, the guide groove M is located right below the guide plate 206a, and water flowing out of the guide plate 206a impacts the guide groove M, so that the movable plate 206b can be more easily impacted by water flow and moves downwards.

Example 3

Referring to FIGS. 2-5, a third embodiment of the present invention is based on the first two embodiments.

Specifically, the adjusting member 207 includes a movable rod 207a, a fixed tube 207b, a fixed ring 207c, a fixed spring 207d and a trigger tube 207e, the movable rod 207a is disposed on the side of the housing 202, the fixed tube 207b is fixed on the outer side of the housing 202, the fixed ring 207c is fixed on the surface of the movable rod 207a and is located in the fixed tube 207b, the fixed spring 207d is mounted on the inner side of the fixed ring 207c, and the trigger tube 207e is fixed to one end of the movable rod 207a and is sleeved on the outer side of the fixed tube 207 b.

The position where the movable rod 207a contacts the housing 202 is sealed, when air bleeding or sewage draining is required, the trigger tube 207e is pushed inwards by hand, the movable rod 207a is driven to move inwards by the trigger tube 207e, and when the trigger tube 207e is loosened by a worker, the fixing ring 207c and the movable rod 207a are pushed outwards by the fixing spring 207d, so that the movable rod 207a is reset.

The exhaust member 208 includes a third fixed plug 208a and a connecting plate 208b, the side of the housing 202 is opened with an air outlet hole S4, the third fixed plug 208a is located in the air outlet hole S4, the connecting plate 208b is located in the housing 202, and two ends of the connecting plate are respectively fixed with the third fixed plug 208a and the movable rod 207 a.

When the movable rod 207a moves to the inboard, drive the fixed stopper 208a of third and move through connecting plate 208b, make the fixed stopper 208a of third break away from in venthole S4, high-pressure gas and impurity can follow venthole S4 blowout this moment, thereby it is more convenient to make the blowdown, when the staff loosens trigger tube 207e, through gaseous pressure to connecting plate 208b and the fixed stopper 208a of third applys with its outside promotion, make the fixed stopper 208a of third peg graft in venthole S4 that can be more firm, avoid taking place gas leakage in the use.

The exhaust member 208 further includes a rotating wheel 208c and a filter pipe 208d, the rotating wheel 208c is rotatably connected to the outside of the third fixing plug 208a, the filter pipe 208d is fixed to the outside of the housing 202, and the rotating wheel 208c is located in the filter pipe 208 d.

When gas and impurity are from venthole S4 blowout, filter it through filter tube 208d, avoid impurity to splash, produce the damage to the staff, rotate the high-speed rotation of wheel 208c through gas drive simultaneously for impurity can be more even efficient dispersion in filter tube 208d, and wherein filter tube 208d is fixed through modes such as screws, makes its dismouting more convenient, and clearance and change efficiency are more heightened.

When the air storage tank body 100 is used, more water is generated in the continuous use process, at the moment, the water is guided into the shell 202 through the drain pipe 201 and is filled in the shell 202, the floating block 204c is lifted upwards through the buoyancy of the water, the connecting rod 204a, the first fixing plug 204b and the second fixing plug 205a are driven to move upwards through the floating block 204c, at the moment, the first through hole S1 and the second through hole S2 are opened, the water can be guided out downwards through the first through hole S1 and the second through hole S2, at the same time, most of the water is guided through the guide plate 206a, the movable plate 206b is impacted, at the moment, the movable plate 206b is impacted by the water, and then the floating block 204c can float upwards to perform the drainage operation; after the water is drained, the gas enters the shell 202 through the drain pipe 201, the floating block 204c loses buoyancy and impact force and moves downwards, the second through hole S2 and the first through hole S1 are closed, the movable plate 206b is pushed to move upwards through the compression spring 206d, the hinge seat 206c is provided with a limiting block, the movable plate 206b is limited through the limiting block, the movable plate 206b is prevented from moving upwards at an overlarge angle to affect use, the gas is guided to the upper side of the floating block 204c through the guide plate 206a and the movable plate 206b at the moment, the floating block 204c is pressed downwards, gas leakage is further avoided, meanwhile, the second fixing plug 205a is pushed downwards through the reset spring 205e to reset the movable plate, the second through hole S2 is closed, the first through hole S1 is closed through the first fixing plug 204b, and when the pressure in the shell 202 is stable, the floating block 204c tends to be stable, and therefore gas leakage is avoided; when air bleeding or sewage discharging is needed, the trigger pipe 207e is manually pushed inwards, the trigger pipe 207e drives the movable rod 207a to move inwards, the connecting plate 208b drives the third fixed plug 208a to move, the third fixed plug 208a is separated from the air outlet hole S4, high-pressure gas and impurities can be sprayed out from the air outlet hole S4 at the moment, so that sewage discharging is more convenient, then the impurities are filtered through the filter pipe 208d, splashing of the impurities is avoided, damage to workers is caused, meanwhile, the impurities can be more uniformly and efficiently dispersed in the filter pipe 208d through high-speed rotation of the gas drive rotating wheel 208c, the filter pipe 208d is fixed through screws and the like, so that the disassembly and assembly are more convenient, the cleaning and replacement efficiency is higher, manual discharging of water in the gas storage tank body 100 is not needed, and the water discharging efficiency is greatly improved, and the safety is higher.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides an air compressor machine gas holder drainage device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a gas tank body (100); and

the drainage component (200) is arranged at the bottom of the air storage tank body (100) and comprises a drainage pipe (201), a shell (202), a mounting plate (203), a first movable piece (204), a second movable piece (205), a flow guide piece (206), an adjusting piece (207) and an exhaust piece (208), the drain pipe (201) is communicated with the bottom of the air storage tank body (100), the shell (202) is fixed at one end of the drain pipe (201), the mounting plate (203) is mounted in the housing (202), the first movable member (204) is located on the mounting plate (203), the second movable member (205) is disposed below the first movable member (204), the flow guide piece (206) is arranged on the inner wall of the shell (202), the adjusting piece (207) is arranged on the side face of the shell (202), and the exhaust piece (208) is positioned above the adjusting piece (207).

2. The air compressor air storage tank drainage device of claim 1, wherein: the first movable piece (204) comprises a connecting rod (204a), a first fixed plug (204b) and a floating block (204c), a first through hole (S1) is formed in the mounting plate (203), the first fixed plug (204b) is located in the first through hole (S1), the connecting rod (204a) is fixed on the first fixed plug (204b), and the floating block (204c) is fixed at the top end of the connecting rod (204a) and located above the first fixed plug (204 b).

3. The air compressor air storage tank drainage device of claim 2, wherein: inclined planes (204d) are arranged on two sides of the floating block (204c), and first arc surfaces (204e) are arranged on the tops of two sides of the floating block (204 c).

4. The air compressor air storage tank drainage device of claim 2 or 3, wherein: the second movable piece (205) comprises a second fixed plug (205a) and an impeller (205b), the second fixed plug (205a) is fixed at the bottom end of the connecting rod (204a), the impeller (205b) is rotatably connected to the connecting rod (204a) and located below the mounting plate (203), a second through hole (S2) is formed in the bottom of the shell (202), and the second fixed plug (205a) is located in the second through hole (S2).

5. The air compressor air storage tank drainage device of claim 4, wherein: second moving part (205) still includes spacing ring (205c), limiting plate (205d) and reset spring (205e), spacing ring (205c) are located connecting rod (204a) surface, limiting plate (205d) one end with casing (202) inner wall is fixed, the other end with spacing ring (205c) are fixed, reset spring (205e) both ends respectively with spacing ring (205c) with second fixed stopper (205a) are fixed.

6. The air compressor air storage tank drainage device according to any one of claims 2, 3 and 5, wherein: the flow guide piece (206) comprises a flow guide plate (206a), a movable plate (206b), a hinged seat (206c) and a compression spring (206d), a water inlet hole (S3) is formed in the side face of the shell (202), the flow guide plate (206a) is fixed to the inner wall of the shell (202) and located at the top of the water inlet hole (S3), the movable plate (206b) is hinged to the inner wall of the shell (202) through the hinged seat (206c), the flow guide plate (206a) is located above the movable plate (206b), and two ends of the compression spring (206d) are fixed to the shell (202) and the movable plate (206b) respectively.

7. The air compressor air storage tank drainage device of claim 6, wherein: a second arc surface (206e) is arranged on one side of the bottom of the movable plate (206b), a flow guide groove (M) is formed in the top of the movable plate (206b), and the flow guide plate (206a) is located above the flow guide groove (M).

8. The air compressor air storage tank drainage device of claim 7, wherein: adjusting part (207) includes movable rod (207a), fixed pipe (207b), solid fixed ring (207c), fixed spring (207d) and trigger tube (207e), movable rod (207a) set up in casing (202) side, gu fixed pipe (207b) is fixed in the casing (202) outside, gu fixed ring (207c) is fixed in movable rod (207a) surface, and be located gu fixed pipe (207b) is interior, gu fixed spring (207d) install in gu fixed ring (207c) is inboard, trigger tube (207e) with movable rod (207a) one end is fixed, and the cover is located gu fixed pipe (207b) outside.

9. The air compressor air storage tank drainage device of claim 8, wherein: the exhaust piece (208) comprises a third fixed plug (208a) and a connecting plate (208b), an air outlet (S4) is formed in the side surface of the shell (202), the third fixed plug (208a) is located in the air outlet (S4), the connecting plate (208b) is located in the shell (202), and two ends of the connecting plate are respectively fixed with the third fixed plug (208a) and the movable rod (207 a).

10. The air compressor air storage tank drainage device of claim 9, wherein: the exhaust member (208) further comprises a rotating wheel (208c) and a filtering pipe (208d), the rotating wheel (208c) is rotatably connected to the outer side of the third fixing plug (208a), the filtering pipe (208d) is fixed to the outer side of the shell (202), and the rotating wheel (208c) is located in the filtering pipe (208 d).