CN219809413U

CN219809413U - Automatic drainer

Info

Publication number: CN219809413U
Application number: CN202321011927.6U
Authority: CN
Inventors: 应全永
Original assignee: Ningbo Fenghua Jiaquan Pneumatic Components Co ltd
Current assignee: Ningbo Fenghua Jiaquan Pneumatic Components Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-10
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses an automatic drainer, wherein a foam float is arranged outside a main valve cover, the foam float is in buckle connection with an air inlet switch assembly, the main valve cover is provided with an air inlet hole, the air inlet hole is connected with the air inlet switch assembly, and the lower end of the main valve cover is connected with a drainage base; a drainage channel penetrates through the drainer body, a drainage outlet penetrates through the drainage base, a piston is arranged in the drainage channel in a sliding mode, and a Y-shaped ring and a spring are arranged between the piston and the main valve cover; an air chamber is formed between the piston and the main valve cover, the piston is provided with an exhaust hole, the aperture of the air inlet hole is larger than that of the exhaust hole, the air chamber is communicated with the exhaust hole and the air inlet hole, and an exhaust channel penetrates through the piston; the automatic drainage is realized, the buoyancy of the foam floater is better, the service life is long, the aperture of the air inlet hole and the aperture of the air outlet hole are designed according to the proportion, the drainage time is prolonged, the sewage is drained completely in sufficient time, the blockage is not easy to occur, the drainage speed is high, and the water flow is smooth.

Description

Automatic drainer

Technical Field

The utility model relates to the technical field of air filters, in particular to an automatic drainer.

Background

In the field of pneumatic elements, an air filter is an air source treatment element for filtering and discharging moisture in compressed air, and the humidity of the treated compressed air is reduced, so that the inner wall of a pipeline and a valve core of an air control component can be prevented from being corroded. The air filter mainly comprises a filter body, a filter element, a water cup and a drainage mechanism, wherein a compressed air inlet and a compressed air outlet are formed in the filter body, compressed air enters the filter body from the inlet, after being filtered by the filter element, dry air is discharged from the outlet, moisture is collected in the water cup, and finally water in the water cup is discharged from the drainage mechanism. Common drainage mechanisms of compressed air filters include a manual drain valve, a spring-type drainage mechanism, and a float-type automatic drainage mechanism.

The manual drain valve has the simplest structure, and when water is needed to be drained, the valve is opened by hand, and after the water is drained, the valve is closed. The common use is a knob type small ball valve, a button type top needle valve and the like. The valve is simple in design and can solve the sealing problem. The manual valve must be manually operated and the water level must be checked periodically and drained in time. If the drainage is not in time, secondary pollution can be caused, the water filtering effect can not be achieved, the manual drainage valve is low in cost, rapid in drainage and high in manual maintenance cost, and normal work is not affected.

And the spring type drainage mechanism is used for jacking the valve core to drain water when no air pressure or extremely low air pressure exists. When air pressure exists, the valve core is pressed on the O-shaped sealing ring, and water discharge is stopped. The spring type drainage mechanism must stop air when draining water, and can only be used in certain places where air can be stopped frequently.

The float type automatic water draining mechanism is characterized in that a float is arranged in a water cup, the upper end of the float is under the pressure of compressed air, the lower end of the float is under the buoyancy of water, when the buoyancy of the lower end of the float is higher than the pressure of the upper end, the float moves upwards and controls to open a water outlet, and when the buoyancy of the lower end of the float is lower than the pressure of the upper end due to the lowering of the water level, the float moves downwards and controls the water outlet to be closed, so that automatic water draining is realized; in the like products on the market at present, the floats mainly adopt two types of plastic floats or lever floats, the two types of production processes are complex, the production cost is high, the service life is not long, the buoyancy is uneven, the lever floats are often blocked to cause air leakage, and the problems of incomplete drainage, no drainage and the like are caused.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the utility model provides an automatic drainer which has the advantages of simple and reasonable structure, convenient operation, long drainage time, large drainage amount, thorough drainage and longer service life than like products.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model relates to an automatic drainer which is arranged in a water cup of a filter, wherein the drainer body comprises a main valve cover, a foam float, an air inlet switch assembly, a drain base and a piston; the foam floater is sleeved outside the main valve cover and is fixedly connected with the air inlet switch assembly in a buckling manner, the upper end of the main valve cover is provided with an air inlet hole, the air inlet hole is in sealing connection with the air inlet switch assembly, and the lower end of the main valve cover is connected with the drainage base; a water storage cavity is formed between the water drainage base and the water cup, a water drainage channel which is communicated with the water storage cavity and the outside is penetrated in the water drainage device body, a water outlet which is communicated with the water drainage channel is penetrated on the water drainage base, a piston is arranged at the upper end of the water drainage channel in a sliding manner, the piston is movably arranged between the main valve cover and the water drainage base, and a Y-shaped ring and a spring are propped against the piston and the main valve cover; the spring drives the piston to be far away from the drainage base, an air chamber is formed between the piston and the main valve cover, an exhaust hole is formed in the piston, the aperture of the air inlet hole is larger than that of the exhaust hole, the air chamber is respectively communicated with the exhaust hole and the air inlet hole, and an exhaust channel communicated with the exhaust hole penetrates through the piston.

Further, a sealing gasket which is in sealing connection with the air inlet hole is arranged on the air inlet switch assembly.

Further, a sealing ring is abutted between the piston and the drainage channel.

Further, the piston is provided with an annular groove matched with the water outlet stop, and the sealing ring is arranged in the annular groove.

Further, the lower extreme of drainage base is connected with quick connect nut plug.

Further, a limit groove is formed in the piston, one end of the spring abuts against the limit groove, and the other end of the spring abuts against the main valve cover.

Further, the foam floater is in a conical structure with a big top and a small bottom.

Further, the foam float is manufactured by a foam foaming process.

Further, a convex ring which is in limit fit with the foam float is arranged on the main valve cover.

Further, a limiting step which is in limiting fit with the piston is arranged on the main valve cover.

The automatic drainer has the beneficial effects that the foam floater is arranged, the upper end of the foam floater is under the pressure of compressed air, the lower end of the foam floater is under the buoyancy of water, when the water level of the water storage cavity reaches the drainage standard, the foam floater floats upwards, the foam floater rises to a certain height relative to the main valve cover, the foam floater rises to drive the air inlet switch assembly fixedly connected with the air inlet switch assembly in a buckling manner to rise, the air inlet switch assembly is not sealed with the air inlet hole, the air inlet hole is opened, at the moment, air enters the air chamber from the air inlet hole, and because the aperture of the air inlet hole is larger than that of the air outlet hole, the air inlet hole is large and small, the pressure in the air chamber is increased to generate thrust to push the piston, so that the piston moves downwards against the elasticity of the spring, the sealing ring at the water outlet hole moves downwards along with the piston, the water outlet is opened, sewage in the water storage cavity is discharged into the outside through the water outlet channel, automatic drainage is realized without manual control, and the manual maintenance cost is low.

The foam float is made by adopting a foam foaming process, the production process is simpler, the weight is light, the manufacturing cost is low, and the foam float is designed to be in a conical structure with a large upper part and a small lower part, so that the buoyancy of the foam float is better, and the service life is long.

The aperture of the air inlet hole and the aperture of the air outlet hole are designed according to the proportion, the aperture of the air inlet hole is larger than the aperture of the air outlet hole, so that the air entering the air chamber is larger than the air exiting the air chamber, the drainage time of the drainer is prolonged, the sewage is guaranteed to be drained completely for a sufficient time, the blockage is not easy to occur, the drainage speed is high, and the water flow is smooth.

The lower extreme of drainage base is connected with and connects the nut plug soon, and connected mode is simple, simple to operate, the user of being convenient for uses.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model with the drain opening in the cup closed;

FIG. 3 is a schematic view of the structure of the present utility model with the water outlet in the cup in an open state;

fig. 4 is an enlarged schematic view of fig. 3 a.

In fig. 1-4: 1. a water cup; 2. a main valve cover; 3. a foam float; 4. an air inlet switch assembly; 5. a drainage base; 6. a piston; 7. an air inlet hole; 8. a water storage chamber; 9. a drainage channel; 10. a water outlet; 11. a Y-shaped ring; 12. a spring; 13. a gas chamber; 14. an exhaust hole; 16. an exhaust passage; 17. a sealing gasket; 18. a seal ring; 19. a nut plug is connected quickly; 20. an annular groove; 21. a limit groove; 22. a convex ring; 23. and limiting the step.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

An automatic drainer as shown in fig. 1 to 4 is arranged in a water cup 1 of a filter, and the drainer body comprises a main valve cover 2, a foam float 3, an air inlet switch assembly 4, a drain base 5 and a piston 6; the foam floater 3 is sleeved outside the main valve cover 2, the foam floater 3 is fixedly connected with the air inlet switch assembly 4 in a buckling way, the upper end of the main valve cover 2 is provided with an air inlet hole 7, the air inlet hole 7 is in sealing connection with the air inlet switch assembly 4, and the lower end of the main valve cover 2 is connected with the drainage base 5; a water storage cavity 8 is formed between the water drainage base 5 and the water cup 1, a water drainage channel 9 which is communicated with the water storage cavity 8 and the outside is penetrated in the drainer body, a water outlet 10 which is communicated with the water drainage channel 9 is penetrated on the water drainage base 5, a piston 6 is slidably arranged at the upper end of the water drainage channel 9, the piston 6 is movably arranged between the main valve cover 2 and the water drainage base 5, and a Y-shaped ring 11 and a spring 12 are propped between the piston 6 and the main valve cover 2; the spring 12 drives the piston 6 to be far away from the drainage base 5, an air chamber 13 is formed between the piston 6 and the main valve cover 2, an exhaust hole 14 is formed in the piston 6, the aperture of the air inlet 7 is larger than that of the exhaust hole 14, the air chamber 13 is respectively communicated with the exhaust hole 14 and the air inlet 7, and an exhaust channel 16 communicated with the exhaust hole 14 penetrates through the piston 6.

When the air filter works, air enters the air filter, compressed air is formed by cyclone blades arranged in the air filter, liquid oil water and solid pollutants in the compressed air are rotated by the cyclone blades and are thrown onto the side wall of the water cup 1 under the action of centrifugal force, and then flow to the water storage cavity 8 along the wall surface of the water cup 1, sewage in the water storage cavity 8 is discharged through the drainer, and the compressed air is discharged after being filtered by the filter element, so that a dry clean air source is provided.

According to the utility model, the aperture of the air inlet 7 and the aperture of the air outlet 14 are designed according to the proportion, preferably, the aperture of the air inlet 7 is larger than the aperture of the air outlet 14, so that the air entering the air chamber 13 is larger than the air exiting the air chamber 13, the drainage time of the drainer is prolonged, the sewage is guaranteed to be drained completely, the blockage is not easy to occur, the drainage speed is high, and the water flow is smooth.

A Y-shaped ring 11 is abutted between the piston 6 and the main valve cover 2, and the Y-shaped ring 11 plays a role of unidirectional sealing.

When the water level of the water storage cavity 8 does not meet the drainage requirement, the foam floater 3 and the air inlet switch press the air inlet 7 and keep sealed, and at the moment, the air inlet 7 does not enter air; the piston 6 is kept to be pulled upwards under the action of the spring 12 and the Y-shaped ring 11, namely the spring 12 drives the piston 6 to be far away from the drainage base 5, so that the sealing ring 18 at the drainage port 10 is in a sealing state, and the drainage port 10 is closed.

When the water level of the water storage cavity 8 reaches the drainage standard, the foam floater 3 floats upwards, the foam floater 3 rises to a certain height relative to the main valve cover 2, the foam floater 3 rises to drive the air inlet switch assembly 4 fixedly connected with the air inlet switch assembly in a buckling manner, the air inlet switch assembly 4 and the air inlet 7 are not sealed, the air inlet 7 is opened, air enters the air chamber 13 from the air inlet 7, the aperture of the air inlet 7 is larger than that of the air outlet 14, air is discharged in the air chamber 13, the pressure in the air chamber 13 is increased to generate thrust to push the piston 6, so that the piston 6 overcomes the elasticity of the spring 12 to move downwards, the sealing ring 18 at the water outlet 10 moves downwards along with the piston 6, the water outlet 10 is opened, sewage in the water storage cavity 8 is discharged into the outside through the water outlet 10, and due to the air inlet and outlet delay design of the air chamber 13, the sewage is guaranteed to be discharged completely, the blockage is difficult to occur, the water outlet speed is high, and the water flow is smooth.

When the sewage in the water storage cavity 8 is discharged completely, the buoyancy of the foam floater 3 disappears, the foam floater 3 resets, the air inlet switch assembly 4 resets along with the foam floater 3 to seal the air inlet hole 7, the air inlet is closed, after the air chamber 13 is discharged completely, the piston 6 resets under the acting force of the spring 12 and the Y-shaped ring 11, the sealing ring 18 moves upwards along with the piston 6 to seal the water outlet 10, and the water discharge is closed.

Preferably, in this embodiment, the air inlet switch assembly 4 is provided with a sealing pad 17 in sealing connection with the air inlet 7, so as to effectively seal the air inlet 7.

Preferably, in this embodiment, a sealing ring 18 is abutted between the piston 6 and the drainage channel 9.

Preferably, in this embodiment, the piston 6 is provided with an annular groove 20 in stop fit with the drain port 10, and the sealing ring 18 is disposed in the annular groove 20.

When the water level of the water storage cavity 8 does not meet the water discharge requirement, the sealing ring 18 is in a sealing state, the water discharge port 10 is closed, specifically, the piston 6 is provided with an annular groove 20 in stop fit with the water discharge port 10, and the sealing ring 18 is arranged in the annular groove 20; when the sewage in the water storage cavity 8 flows out of the water discharge channel 9 through the sealing gasket 17, the sealing ring 18 is not easily separated from the piston 6 under the influence of water flow.

Preferably, in this embodiment, the lower end of the drainage base 5 is connected with a quick-connect nut plug 19, which has a simple connection mode and is convenient to install and use by a user.

Preferably, in this embodiment, the piston 6 is provided with a limiting groove 21, one end of the spring 12 abuts against the limiting groove 21, and the other end of the spring 12 abuts against the main valve cover 2. When the sewage in the water storage cavity 8 is discharged, the spring 12 plays a role of resetting the piston 6.

Preferably, in this embodiment, the foam float 3 has a conical structure with a large top and a small bottom, so that the buoyancy of the foam float 3 is better.

Specifically, the foam float 3 is made by a foam foaming process, the production process is simple, and the production cost can be saved.

Preferably, in this embodiment, the main valve cover 2 is provided with a convex ring 22 that is in limit fit with the foam float 3, so as to limit the floating height of the foam float 3 and avoid the foam float 3 from being separated from the main valve cover 2.

Preferably, in this embodiment, the main valve cover 2 is provided with a limit step 23 in limit fit with the piston 6 to limit the movement of the piston 6 in the main valve cover 2.

The automatic drainer is provided with the foam floater 3, the upper end of the foam floater 3 bears the pressure of compressed air, the lower end of the foam floater 3 bears the buoyancy of water, and when the water level of the water storage cavity 8 reaches the drainage standard, the foam floater 3 floats upwards to open the drainage port 10 for automatic drainage without manual control, so that the manual maintenance cost is low.

The foam float 3 is made by adopting a foam foaming process, the production process is simpler, the weight is light, the manufacturing cost is low, and the foam float 3 is designed to be in a conical structure with a big upper part and a small lower part, so that the buoyancy of the foam float 3 is better and the service life is longer.

The aperture of the air inlet 7 and the aperture of the air outlet 14 are designed according to the proportion, the aperture of the air inlet 7 is larger than the aperture of the air outlet 14, so that the air entering the air chamber 13 is larger than the air exiting the air chamber 13, the drainage time of the drainer is prolonged, the sewage is guaranteed to be drained completely, the blockage is not easy to occur, the drainage speed is high, and the water flow is smooth.

The lower extreme of drainage base 5 is connected with soon and connects nut plug 19, and connected mode is simple, simple to operate, the user of being convenient for uses.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims

1. An automatic drainer is arranged in a water cup (1) of a filter, and is characterized in that: the drainer body comprises a main valve cover (2), a foam float (3), an air inlet switch assembly (4), a drain base (5) and a piston (6); the foam float (3) is sleeved outside the main valve cover (2), the foam float (3) is fixedly connected with the air inlet switch assembly (4) in a buckling manner, an air inlet hole (7) is formed in the upper end of the main valve cover (2), the air inlet hole (7) is connected with the air inlet switch assembly (4) in a sealing manner, and the lower end of the main valve cover (2) is connected with the drainage base (5); a water storage cavity (8) is formed between the water draining base (5) and the water cup (1), a water draining channel (9) communicated with the water storage cavity (8) and the outside is penetrated in the water draining device body, a water draining outlet (10) communicated with the water draining channel (9) is penetrated on the water draining base (5), a piston (6) is slidably arranged at the upper end of the water draining channel (9), the piston (6) is movably arranged between the main valve cover (2) and the water draining base (5), and a Y-shaped ring (11) and a spring (12) are propped between the piston (6) and the main valve cover (2); the spring (12) drives the piston (6) to be far away from the drainage base (5), an air chamber (13) is formed between the piston (6) and the main valve cover (2), an exhaust hole (14) is formed in the piston (6), the aperture of the air inlet hole (7) is larger than that of the exhaust hole (14), the air chamber (13) is respectively communicated with the exhaust hole (14) and the air inlet hole (7), and an exhaust channel (16) communicated with the exhaust hole (14) penetrates through the piston (6).

2. An automatic drain according to claim 1, wherein: the air inlet switch assembly (4) is provided with a sealing gasket (17) which is connected with the air inlet hole (7) in a sealing way.

3. An automatic drain according to claim 1, wherein: a sealing ring (18) is abutted between the piston (6) and the drainage channel (9).

4. An automatic drain according to claim 3, wherein: the piston (6) is provided with an annular groove (20) which is in stop fit with the water outlet (10), and the sealing ring (18) is arranged in the annular groove (20).

5. An automatic drain according to claim 1, wherein: the lower end of the drainage base (5) is connected with a quick-connection nut plug (19).

6. An automatic drain according to claim 1, wherein: a limit groove (21) is formed in the piston (6), one end of the spring (12) abuts against the limit groove (21), and the other end of the spring (12) abuts against the main valve cover (2).

7. An automatic drain according to claim 1, wherein: the foam floater (3) is in a conical structure with a big top and a small bottom.

8. An automatic drain according to claim 1 or 7, wherein: the foam floater (3) is manufactured by adopting a foam foaming process.

9. An automatic drain according to claim 1, wherein: the main valve cover (2) is provided with a convex ring (22) which is in limit fit with the foam float (3).

10. An automatic drain according to claim 1, wherein: the main valve cover (2) is provided with a limit step (23) which is in limit fit with the piston (6).