Abstract
This invention relates to a four-state adjustable air path structure. An air source is connected to an air storage tank and a first two-position three-way solenoid valve via a check valve. The first two-position three-way solenoid valve is connected to a second two-position three-way solenoid valve and a vent hole. The second two-position three-way solenoid is connected to a third two-position three-way solenoid valve and a port of a throttle valve. Another port of the throttle valve is connected to the third two-position three-way solenoid valve. The third two-position three-way solenoid valve is connected to an air tank. The present four-state adjustable air path structure simplifies processing and maintenance of a mechanical structure. Intellectual control of an operating speed can also be achieved. The present invention has advantages such as structural simplicity, low manufacturing costs, safe and reliable operation, long service life, and suitability for long-distance transmission.
Claims
1. A four-state adjustable air path structure, characterized in that: an air source (1) is respectively connected to an air storage tank (3) and a first port (a.sub.1) of a first two-position three-way solenoid valve (A4) via a check valve (2); a third port (c.sub.1) and a second port (b.sub.1) of the first two-position three-way solenoid valve (A4) are respectively connected to a sixth port (c.sub.2) of a second two-position three-way solenoid valve (B6) and a vent hole (5); a fourth port (a.sub.2) and a fifth port (b.sub.2) of the second two-position three-way solenoid valve (B6) are respectively connected to an eighth port (b.sub.3) of a third two-position three-way solenoid valve (C8) and a first in/out port of a throttle valve (7); a second in/out port of the throttle valve (7) is connected to a seventh port (a.sub.3) of the third two-position three-way solenoid valve (C8); and a ninth port (c.sub.3) of the third two-position three-way solenoid valve (C8) is connected to an air tank (9).
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 is a schematic view for illustrating a structure of a four-state adjustable air path structure.
(2) FIG. 2 is a schematic view for illustrating rapid charging of air during operation of the present invention.
(3) FIG. 3 is a schematic view for illustrating slow charging of air during operation of the present invention.
(4) FIG. 4 is a schematic view for illustrating rapid discharging of air during operation of the present invention.
(5) FIG. 5 is a schematic view for illustrating slow discharging of air during operation of the present invention.
(6) In FIG. 1: 1—an air source; 2—a check valve; 3—an air storage tank; 4—a two-position three-way solenoid valve A; 5—a vent hole; 6—a two-position three-way solenoid valve B; 7—a throttle valve; 8—a two-position three-way solenoid valve C; 9—an air tank.
DETAILED DESCRIPTION OF EMBODIMENTS
(7) The specific embodiments of the present invention are further described in detail with reference to the accompanying drawings.
(8) As shown in FIG. 1, a four-state adjustable air path structure is provided, wherein an air source 1 is respectively connected to an air storage tank 3 and a port a.sub.1 of a two-position three-way solenoid valve A4 via a check valve 2; a port c.sub.1 and a port b.sub.1 of the two-position three-way solenoid valve A4 are respectively connected to a port c.sub.2 of a two-position three-way solenoid valve B6 and a vent hole 5; a port a.sub.2 and a port b.sub.2 of the two-position three-way solenoid valve B6 are respectively connected to a port b.sub.3 of a two-position three-way solenoid valve C8 and a port of a throttle valve 7; another port of the throttle valve 7 is connected to a port a.sub.3 of the two-position three-way solenoid valve C8; and a port c.sub.3 of the two-position three-way solenoid valve C8 is connected to an air tank 9.
(9) The process of operation is as follows.
(10) FIG. 2 is a schematic view illustrating the rapid charging of air. In the four-state adjustable air path structure, when the two-position three-way solenoid valve A4 is powered on, the port a.sub.1 is turned on and the port b.sub.1 is turned off. At this time, if the two-position three-way solenoid valve B6 is powered on and the two-position three-way solenoid valve C8 is powered off, i.e., the ports a.sub.2 and b.sub.3 are turned on and ports b.sub.2 and a.sub.3 are turned off, the outside air sequentially passes through the air source 1, the check valve 2, the two-position three-way solenoid valve A4, the two-position three-way solenoid valve B6 and the two-position three-way, solenoid valve C8 and is introduced into the air tank 9. As a result, the air path pressure increases rapidly, and a large amount of compressed air is quickly stored within the air tank 9.
(11) FIG. 3 is a schematic view illustrating the slow charging of air. In the four-state adjustable air path structure, when the two-position three-way solenoid valve A4 is powered on, the port a.sub.1 is turned on and the port b.sub.1 is turned off. At this time, if the two-position three-way solenoid valve B6 is powered off and the two-position three-way solenoid valve C8 is powered on, i.e., when the ports a.sub.3 and b.sub.2 are turned on and the ports a.sub.2 and b.sub.3 are turned off, the outside air sequentially passes through the air source 1, the check valve 2, the two-position three-way solenoid valve A4, the two-position three-way solenoid valve B6, the throttle valve 7 and the two-position three-way solenoid valve C8 and is slowly introduced into the air tank 9. As a result, the pressure inside the air path increases gradually, and a large amount of compressed air is slowly stored within the air tank 9.
(12) FIG. 4 is a schematic view illustrating the rapid discharging of air. In the four-state adjustable air path structure, when the two-position three-way solenoid valve C8 is powered off, the port b.sub.3 is turned on and the port a.sub.3 is turned off. At this time, if the two-position three-way solenoid valve B6 is powered on, i.e., the port a.sub.2 is turned on and the port b.sub.2 is turned off, the compressed air in the air tank 9 passes through the port b.sub.3 of the two-position three-way solenoid valve C8 to the port a.sub.2 of the two-position three-way solenoid valve B6, and then passes through the port c.sub.2 of the two-position three-way solenoid valve B6 to the port c.sub.1 of the two-position three-way solenoid valve A4 which is powered off at this time, i.e., the port b.sub.1 is turned on and the port a.sub.1 is turned off, and thus the air in the air path is discharged through the vent hole 5 rapidly.
(13) FIG. 5 is a schematic view illustrating the slow discharging of air. In the four-state adjustable air path structure, when the two-position three-way solenoid valve C8 is powered on, the port a.sub.3 is turned on and the port b.sub.3 is turned off. At this time, if the two-position three-way solenoid valve B6 is powered off, i.e., the port b.sub.2 is turned on and the port a.sub.2 is turned off, the compressed air in the air tank 9 passes through the port a.sub.3 of the two-position three-way solenoid valve C8, through the throttle valve 7 and to the port b.sub.2 of the two-position three-way solenoid valve B6, and then passes through the port c.sub.2 of the two-position three way solenoid valve B6 to the port c.sub.1 of the two-position three-way solenoid valve A4 which is powered off at this time, i.e., the port b.sub.1 is turned on and the port a.sub.1 is turned off, and thus the air in the air path is discharged through the vent hole 5 slowly.
