JPS595785U - reciprocating pump device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

FIG. 1A is a cross-sectional view of the pump of the present invention representing the initial position of the pressurizing stroke in the direction shown in FIG. 1; FIG. Top view of the pump in Figure 1, No. 2A
Figures 1 and 2B illustrate the spring reversal system of the present invention in the snap-over center towards the right; Figures 3A and 3B respectively show partial side and bottom views of the pump of Figure 1; Figures 3A and 3B illustrate the pump shaft; FIG. 4 is a partial side view and a bottom view, respectively, of the pump of FIG. 1 illustrating the spring reversal mechanism of the present invention immediately after the snap-over position of FIGS. 2A and 2B for reversing direction and moving it to the left; FIG. 1 is a cross-sectional view of the reversing valve of the present invention in the position it occupies when the pump shaft in FIG. 1 is driven left and right, and FIG. 6 is an exploded view showing details of how the yoke of the invention is attached to the pump shaft, and FIG. 7 is another embodiment of the pump diaphragm of the invention. FIG. In the figure, 10... Reciprocating pump, 11... Housing 1, i2A... Input manifold, 12B... Output manifold, S... Pump inlet, SO... Pump outlet, 13... Inner chamber of pump, 14...shaft, 15A. 15B... Air chamber, 16A, 16B... Diaphragm, 17... Yoke, 27... Spring operating member, 28
．． 29...Fluid chamber, 31L, 31R, 32L, 32R
...Check valve, 36...Coil spring, 36T...
・Torsion spring, 40... Reversing valve, 41... Valve body,
43...01Jng. To FIG3A, 36TXFIG-4 IG-5 -3B ~ FI6.6 Correction 1982. 5.25 The scope of claims for utility model registration shall be amended as follows. O Utility Model Registration Claim 1 A system comprising laterally spaced chambers each having a diaphragm member which divides each of the chambers into a drive zone and an exhaust zone and which is attached to a common shaft. a housing comprising; a projection approximately centrally longitudinally of the common shaft; manifold means within the housing for interconnecting the discharge area of the chamber with a fluid inlet and outlet, respectively; inlet and outlet valves at the vaginal introitus for controlling the flow of fluid to be pumped to and from the evacuation zone; the evacuation zone having an end wall parallel to a major surface of the diaphragm member; a top wall perpendicular to the end wall; further control valve means for alternately directing fluid to selected ones of the drive zones defined by the diaphragm within the chamber and connected to a source of fluid; a valve actuating member mounted on the shaft so as to be slidable on the shaft between a first position and a second position depending on the engaged state of the protrusion. the valve actuating member forces the control valve means to alternately direct fluid to drive zones of each of the first and second positions of the actuating member; and In a reciprocating pump apparatus comprising snap action means for eliminating stoppage of the valve actuation member between the second position; a housing having a distal end symmetrically disposed about a center point between the chambers, and an actuating force applied to the ends within the housing and extending through the distal end of the housing and first and second locations; a reciprocatable spool valve member for alternately directing the fluid to the respective discharge areas in response to the reciprocating spool valve member; and a spaced apart actuation arm for applying an actuation force to the ends; the snap action means includes a pair of opposed compression springs;
Each of the springs is mounted on a support pin, one end of each of the support pins being pivotable at a fixed point relative to the pump housing at approximately a midpoint between the laterally spaced chambers. mounted, the other end of each of the support pins being pivotally connected to the valve actuation member at a center point between the actuation arms, the support pin and a compression spring thereon being parallel to the longitudinal axis of the shaft. arranged to move in a common plane on both sides of an axis, such that the compression spring has an equal magnitude to the valve actuation member in a direction transverse to the axis throughout the entire position of travel of the valve actuation member on the shaft. A reciprocating pump device, characterized in that it applies forces in opposite directions at. 2. The pump device according to claim 1, wherein the inlet and outlet are located at the highest possible position of the end wall adjacent to the top wall. 3 Utility model registration claim 1, in which the compression spring is a coil spring disposed concentrically around the support pin
Pump device as described in section. 4. The pump device according to claim 1, wherein the compression spring is a torsion spring.

Claims (1)

[Claims for Utility Model Registration] 1. Said chambers having a diaphragm member disposed in laterally spaced chambers, each of said chambers being divided into a drive section and an exhaust zone, and attached to a common shaft. a screw extending through the common shaft at approximately the longitudinal center of the common shaft; a screw in the housing for interconnecting the discharge area of the chamber with a fluid inlet and an outlet, respectively; manifold means for; inlet and outlet valves at the mouth for controlling the flow of rudder bodies to be pumped into and from the discharge area with respect to the manifold means; having an end wall parallel to a major surface of the member and a top wall perpendicular to the end wall; and further directing fluid alternately to selected ones of the drive areas defined by the diaphragm within the chamber. and a dispensing means including control valve means coupled to a fluid source; and a dispensing means adapted to be slidable on the shaft between a first position and a second position depending on engagement of the bin. a valve actuation member disposed; the valve actuation member forcing the control valve means to alternately direct fluid to actuated zones of each of the first and second positions of the actuation member; In a reciprocating pump device: comprising snap-acting means for eliminating stoppage of the valve actuating member between the first position and the second position; a pair of opposingly disposed compression springs mounted on and disposed on opposite sides of an axis parallel to the longitudinal axis of the shaft; A reciprocating pump device characterized in that it applies equal and opposite forces to the valve actuation member in a transverse direction. 2. The pump device according to claim 1, wherein the compression spring is a coil spring. 3. The pump device according to claim 1, wherein the compression spring is a torsion spring. 4. The pump device according to claim 1, wherein the inlet and outlet are located at the highest possible position of the end wall adjacent to the top wall.