JPH0197075U

JPH0197075U -

Info

Publication number: JPH0197075U
Application number: JP19267687U
Authority: JP
Priority date: 1987-12-21
Filing date: 1987-12-21
Publication date: 1989-06-28
Also published as: JPH0429093Y2

Description

[Brief explanation of the drawing]

図面はこの考案の実施例に関し、第１図はプラ
ンジヤの先端部の詳細な縦断面図、第２図は心出
し部材の拡大縦断面図、第３図は第２図の―
線に沿う断面図、第４図はプランジヤポンプの全
体の概略的な縦断面図である。１０……プランジヤポンプ、１５……プランジ
ヤ、１６……基端側部材、３６……先端側部材、
３８……心出し部材、３９……フランジ部、４０
，４２……凹所、４４……締め付けボルト、４６
……頭部、４８……軸部、５０……パツキン、５
２……環状凸部。 The drawings relate to an embodiment of this invention; FIG. 1 is a detailed longitudinal sectional view of the tip of the plunger, FIG. 2 is an enlarged longitudinal sectional view of the centering member, and FIG. 3 is a cross-sectional view of the centering member.
FIG. 4 is a schematic longitudinal sectional view of the entire plunger pump. 10...Plunger pump, 15...Plunger, 16...Proximal side member, 36...Distal side member,
38... Centering member, 39... Flange portion, 40
, 42... recess, 44... tightening bolt, 46
...Head, 48...Shaft, 50...Putskin, 5
2...Annular convex portion.

Claims

[Scope of utility model registration request]

A distal side member 36 is disposed on the distal side of the proximal side member 16 coaxially with respect to the proximal side member 16, and a centering member 38 is disposed on the proximal side member 16 at one and the other outer peripheral portion thereof. recesses 40 and 42 in the distal end of the distal end and the proximal end of the distal end member 36, respectively.
, and the tightening bolt 44 is inserted into its shaft portion 48.
It passes through the distal side member 36 and the centering member 38 and is screwed into the proximal side member 16 at the distal end of the shaft portion 48 to join the distal side member 36 to the proximal side member 16. Shi, Patsukin 5
0 is interposed between the head 46 of the tightening bolt 44 and the distal end surface of the distal end member 36, the centering member 38 is interposed between the proximal end member 16 and the distal end surface of the distal end member 36. It has an integral flange portion 39 interposed at the joint surface with the distal end member 36, and a plurality of annular convex portions 52 are provided on both end surfaces of the flange portion 39 approximately concentrically with respect to the center line of the centering member 38. These annular convex portions 52 are deformed by tightening of the proximal end member 16 and the distal end member 36 by the tightening bolt 44, and the annular convex portions 52 deform to form a joint surface between the proximal end member 16 and the distal end member 36. A plunger of a plunger pump characterized by being in close contact with.