JPH02137572U - - Google Patents
Info
- Publication number
- JPH02137572U JPH02137572U JP4734689U JP4734689U JPH02137572U JP H02137572 U JPH02137572 U JP H02137572U JP 4734689 U JP4734689 U JP 4734689U JP 4734689 U JP4734689 U JP 4734689U JP H02137572 U JPH02137572 U JP H02137572U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- pressure receiving
- core
- lip portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011440 grout Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 1
Landscapes
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
第１図は本考案に係るグラウトポンプのピスト
ン構造の実施例を示す断面図、第２図は従来例を
示す断面図である。
１……シリンダ、３２……フランジ、２……ピ
ストンロツド、４１……裏面、３……ピストン芯
体、４２……外周縁、４……ピストン受圧体、４
３……表面、８……芯金、４４……リツプ部。
FIG. 1 is a sectional view showing an embodiment of the piston structure of a grout pump according to the present invention, and FIG. 2 is a sectional view showing a conventional example. 1... Cylinder, 32... Flange, 2... Piston rod, 41... Back surface, 3... Piston core, 42... Outer periphery, 4... Piston pressure receiving body, 4
3...Surface, 8...Core metal, 44...Rip portion.
Claims (1)
されたピストン芯体の両側にシリンダ内を隔壁す
るピストン受圧体を夫々取付けてなり、ピストン
芯体はシリンダ方向へ突出したフランジを備え、
ピストン受圧体は裏面がフランジに当接し外周縁
の表面側に変型動作の大きなリツプ部を備えた弾
力性を有する皿状に形成されてなるグラウトポン
プのピストン構造において、ピストン受圧体の裏
面と外周縁のリツプ部を除く部分とを被覆する皿
形状の剛体からなる芯金をピストン受圧体に取付
けたことを特徴とするグラウトポンプのピストン
構造。 A piston core fixed to a piston rod that reciprocates inside the cylinder is fitted with piston pressure receiving bodies that partition the inside of the cylinder on both sides, and the piston core is provided with a flange protruding toward the cylinder.
In the piston structure of a grout pump, the piston pressure receiving body is formed into an elastic dish shape with a back surface in contact with the flange and a lip portion with a large deformation action on the surface side of the outer periphery. A piston structure for a grout pump, characterized in that a core metal made of a plate-shaped rigid body is attached to a piston pressure receiving body, covering the circumference of the piston except for the lip portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4734689U JPH02137572U (en) | 1989-04-21 | 1989-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4734689U JPH02137572U (en) | 1989-04-21 | 1989-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02137572U true JPH02137572U (en) | 1990-11-16 |
Family
ID=31563196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4734689U Pending JPH02137572U (en) | 1989-04-21 | 1989-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02137572U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55151182A (en) * | 1979-02-22 | 1980-11-25 | Weatherford Dmc | Reciprocating mud pump |
| JPS606082A (en) * | 1983-06-23 | 1985-01-12 | Itsumi Kawa | Method and device for sending pressure-sent body by pressure |
-
1989
- 1989-04-21 JP JP4734689U patent/JPH02137572U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55151182A (en) * | 1979-02-22 | 1980-11-25 | Weatherford Dmc | Reciprocating mud pump |
| JPS606082A (en) * | 1983-06-23 | 1985-01-12 | Itsumi Kawa | Method and device for sending pressure-sent body by pressure |