JP3016468U - Intake and discharge device for rotary cylinder piston - Google Patents

Abstract

(57) [Abstract] [Purpose] A suction and discharge device for a rotary pump, in which a piston is inserted into a cylinder radially provided on a rotor to eccentrically rotate the piston and the cylinder. Intake and discharge device that has a shape-shaped convex portion 6 and has a U-shaped groove from the center of the convex portion 6 to the left and right, and a flow path that leads from the groove to the side cover. Insert the convex part 6 into the hollow part of the center of the rotor.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to an intake / exhaust device for a piston of a rotary pump. "Refer to Figs. 1 and 2 A rotor 2 having a hollowed central portion is radially provided with a plurality of cylinders 3, and an intake / exhaust opening 12 is provided at the bottom of the cylinder. Further, the cylinder 3 is provided with notches 14 on the left and right sides, and when the piston 4 is inserted, the piston pin 13 is projected from the notch 14 and assembled into the case 1. The groove 5 for inserting the piston pin 13 is eccentrically provided on the left and right side covers of the case 1. Insert the piston pin 13 into the groove 5 In the rotary pump having the above-mentioned structure, the U-shaped groove of the side cover and the convex portion 6 with the flow channels 10 and 11 are formed in the hollowed portion of the center of the rotor 2. Insert the side cover with the flange 9 and attach the suction pipe and the discharge pipe to the flow channels 10 and 11.

[0002]

[Prior art]

 The suction and discharge device in the conventional rotary pump could not secure a sufficient flow path due to mechanical restrictions. The present invention provides a sufficient space for the flow path, so improvement of efficiency can be expected.

[0003]

[Problems to be solved by the device]

 The present invention aims to solve the above problems and provide an efficient rotary pump.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, this invention inserts a convex portion 6 having a groove in the hollowed-out portion of the central portion of the rotor and a flow path leading from the groove to the side cover, and from the opening 12 at the bottom of the cylinder. Connect to the outside through grooves and channels

[0005]

[Action]

 In Fig. 2, the parts to be attached to the grooves of the flow passages 10 and 11 of the convex part 6 are up and down, but they are attached to the left and right grooves "parts shown by diagonal lines" shown in Fig. 1 When the rotor 2 rotates to the right, The cylinder is in the intake stroke, and suction is performed from the flow path 10 through the U-shaped groove into the cylinder, while the cylinder on the left side is the discharge stroke, and when the rotation is left, the intake stroke and the discharge stroke are opposite. become

[0006]

【Example】

 A wheel-shaped convex portion 6 is provided in the center of the inner surface of the side cover 7. The convex portion 6 has a partition wall for opening and closing an inlet / outlet opening 12 at the bottom of the cylinder as shown in FIG. Make a U-shaped groove on the left and right of the partition wall, and insert a flow path from the groove to the side cover into the hollowed part in the center of the rotor.

[0007]

[Effect of device]

 This device is expected to improve efficiency because the flow path can be easily set. Furthermore, there are few mechanical failures.

[Brief description of drawings]

FIG. 1 is a plan view showing a side view.

FIG. 2 is a sectional view in which the convex portion 6 rotates 90 degrees.

[Explanation of symbols] 1 ... Case 2 ... Rotor 3 ... Cylinder 4 ... Piston 5 ... Piston pin insertion groove 6 ... Providing a U-shaped groove and flow path on the side cover 7 Tatami 7 ・ ・ Side cover 8 ・ ・ Side cover 9 ・ ・ Flange 10 ・ ・ Flow passage 11 ・ ・ Flow passage 12 ・ ・ Intake and discharge opening at the bottom of the cylinder 13 ・ ・ Piston pin 14 ・ ・ Cylinder Notches on the left and right sides

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location F04B 53/16 F04B 21/00 K

Claims (1)

[Scope of utility model registration request] 1. A wheel-shaped convex portion 6 is provided at the center of the inner surface of a side cover 7, a partition is provided at the central portion of the convex portion 6, and a U-shaped groove is provided on the left and right circumferences of the partition, and the side surface extends from the groove. "Inhalation / exhaust device with flow paths 10 and 11 communicating with cover 7" Hollow out the center of the rotor 2 with a plurality of cylinders 3 radially and a bottom of the cylinder with an opening 12 for intake / exhaust Intake-exhaust device for piston of rotary cylinder that inserts convex part 6 with U-shaped groove and flow passage into the open part to allow intake / exhaust.