JPS61106986A - fluid pump - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid pump that can be used in a hydraulic system to pump fluid in a hydraulic system.

Simple and inexpensive conventional pumps have a cylinder within which a piston is movable to accomplish pumping.

Such pumps have the disadvantage of requiring high quality surfaces inside the cylinder. In addition, seals or bending of the piston and cylinder are necessary. Such seals create friction and edge wear and therefore require regular maintenance. This is a substantial disadvantage when the pump is used in deep wells.The piston and cylinder are not equipped with their own pistons, and the whites contain abrasive materials such as cement. It becomes even more obvious when trying to pump fluid.

The object of the invention is to eliminate the above-mentioned disadvantages by replacing the piston with a tubular pump element of elastic material embedded with a thread extending in the form of a spiral.1 The elastic material is advantageously , can be made of rubber. fiti
The strong threads must be able to resist deformation and must be placed separately so as to give good elasticity to the worn pump element.

The invention thus provides a housing enclosing a pump chamber, an inlet valve through which fluid is pumped into the pump chamber, an outlet valve through which fluid is pumped out of the pump chamber, and a housing for varying the volume of the pump chamber. In a fluid pump having a pump body, the pump element includes a tubular member made of an elastic material, in which a reinforcing thread extending helically along the tubular member is embedded, and the reinforcing thread extends in a helical manner along the tubular member. A fluid pump is provided, wherein one end of the member is fixed to the housing, the other end is resiliently connected to the housing, and the interior of the tubular member is connected to a monolithic pressure source of variable pressure. be done. Hereinafter, with reference to the drawings, practical examples 1 of this invention will be explained. I...1 will be explained in detail. The illustrated pressure pump has a housing covered by a lid. At the bottom of the housing, the inlet valve /6 is placed in the trace /4(, /S).

The valve element is attached by screw l3. The fluid to be pumped passes through the inlet valve and into the pump chamber. 20, and then the outlet valve/conduit leading to the delivery point.
g. The valve holder is placed in the passage 17 that goes down into the lid, and is held in the positioning chamber by a tube 9 that is screwed into the lid. Anger/state member.
A pump element consisting of 2/ and an end piece 23 is installed in the pump chamber 0. End piece. 23, by example λ wire JQ, the lid/. It is fixed at 2.

The end piece 2.2 is elastically connected to the housing 11 by an adjustable barb 25. The inside of the tubular member a is
Flow/pressure source 32 made in the same way as Bonpu Kanameshiko 1
and is connected by conduit 21, I/C.

The fluid pressure source 32 has a stand 3 /
The lever 3da changes the length of the pressure source with ylr in a suitable manner, for example by means of a wire 33.
：I can get it. As a result, the fluid pressure changes, as will be described later. Does it depend on this change in pressure? , a change in the volume of the pump element 1/occurs. This change in volume caused by moving lever 34I up and down accomplishes pumping.

Wisdom member 2/(This is also effective for the tubular member 32i-)-
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■■■■■■ Extend in a spiral shape along the 21 r- ■. The thread extends in two directions. The pitch angle ■ is arceot J fu, that is, approximately
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It works in the same way. In the embodiment of FIG. 3, tube 4Il
are extended and tightened to the housing//and lid 7.2 by clamps 5l and S1, respectively. The length of %pt is pre-prepared in the tube.
Ichinan i-beni'' Ji7Q Mumu 21. 〜■■■■■■■
■■■■■■■■■■■■■■■■■■■■■■■■■
■■■■■■■■■■■■■■■■■■■■■■■■■
■■■■■■■■■■ Yo■■1 However, Bonzo fits one particular counter pressure.

In order to adapt to different counterpressures, in the drawings, // is the housing, 16 is the person [1 valve, /g is the u10 valve, -〇 is the pump chamber, J/ is the parting member, and here is One end of the tubular part 1.23 is in the shape of a 1.
9. Pressure reading, lIl shows each elastic material, lIl shows all sleeve strong threads.

Figure 2 Figure 3 Procedural amendment (formality) %formula% ■Display of incident 1985 Patent Application No. 158459 2, Title of Invention Fluid pop 3. Person who makes corrections Relationship to the case Patent applicant 4. Agent No changes to the contents of the drawings

Claims (1)

[Claims] 1. A housing (11) with a pump chamber (20), an inlet valve (16) through which the fluid sent into the pump chamber passes, and an outlet valve through which the fluid sent out from the pump chamber passes. (
18) and a pump element (21) for varying the volume of the pump chamber, the pump element comprising a tubular member (21) made of an elastic material (41), in which , a reinforcing thread (42) extending helically along the tubular member is embedded, and one end (2) of the tubular member is embedded.
3) is fixed relative to the housing, the other end (22) is elastically connected to the housing, and the interior of the tubular member is connected to a fluid pressure source (32) of variable pressure. pump. 2. Spring whose elastic connection can adjust the spring force (25)
A fluid pump according to claim 1, achieved by: