JPH0484765U - - Google Patents
Info
- Publication number
- JPH0484765U JPH0484765U JP12870290U JP12870290U JPH0484765U JP H0484765 U JPH0484765 U JP H0484765U JP 12870290 U JP12870290 U JP 12870290U JP 12870290 U JP12870290 U JP 12870290U JP H0484765 U JPH0484765 U JP H0484765U
- Authority
- JP
- Japan
- Prior art keywords
- concrete pump
- operation panel
- pressure sensor
- concrete
- pipe
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案の一実施例を示す概略平面図、
第２図はコンクリート閉塞時の配管内圧力の変動
を示す図、第３図は本考案の他の実施例を示す概
略平面図、第４図は従来の例を示す概略平面図、
第５図は従来方式による場合の閉塞時の配管内圧
力の変動を示す図である。
１……ホツパ、３，４……コンクリートシリン
ダ、６，７……主油圧シリンダ、１３……揺動管
、１４……配管、１５……先端ホース、１９……
操作盤、２０……電磁式四方弁、２２……安全弁
、２３……電磁弁、２４……操作盤。
FIG. 1 is a schematic plan view showing an embodiment of the present invention;
FIG. 2 is a diagram showing the fluctuation of the pressure inside the pipe when concrete is blocked, FIG. 3 is a schematic plan view showing another embodiment of the present invention, and FIG. 4 is a schematic plan view showing a conventional example.
FIG. 5 is a diagram showing the fluctuation of the pressure inside the pipe when the pipe is blocked in the case of the conventional method. 1... Hopper, 3, 4... Concrete cylinder, 6, 7... Main hydraulic cylinder, 13... Swing pipe, 14... Piping, 15... Tip hose, 19...
Operation panel, 20... solenoid four-way valve, 22... safety valve, 23... solenoid valve, 24... operation panel.
Claims (1)
スを有するコンクリートポンプにおける上記先端
ホース近くの配管位置に、配管内部の圧力を検知
する圧力センサを設け、且つコンクリートポンプ
作動用の圧油を安全弁を通してアンロードさせる
よう指令する操作盤に、上記圧力センサを接続し
てなることを特徴とするコンクリートポンプの配
管破損防止装置。 (2) コンクリートポンプ作動用の圧油を安全弁
を通してアンロードさせるよう指令する操作盤に
代えて、上記圧油を切り換える電磁式四方弁を励
磁、消磁させるようにする操作盤を用い、該操作
盤に圧力センサを接続してなることを特徴とする
コンクリートポンプの配管破損防止装置。[Scope of Claim for Utility Model Registration] (1) In a concrete pump having a hose at the end of a pipe for transporting concrete, a pressure sensor for detecting the pressure inside the pipe is provided at a position near the end hose of the concrete pump, and the concrete pump is operated. A piping damage prevention device for a concrete pump, characterized in that the pressure sensor is connected to an operation panel that commands to unload pressurized oil through a safety valve. (2) Instead of an operation panel that commands to unload the pressure oil for concrete pump operation through a safety valve, use an operation panel that energizes and demagnetizes the electromagnetic four-way valve that switches the pressure oil, and the operation panel A concrete pump piping damage prevention device characterized by connecting a pressure sensor to the concrete pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990128702U JPH0738700Y2 (en) | 1990-11-30 | 1990-11-30 | Pipe damage prevention device for concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990128702U JPH0738700Y2 (en) | 1990-11-30 | 1990-11-30 | Pipe damage prevention device for concrete pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0484765U true JPH0484765U (en) | 1992-07-23 |
| JPH0738700Y2 JPH0738700Y2 (en) | 1995-09-06 |
Family
ID=31876148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990128702U Expired - Fee Related JPH0738700Y2 (en) | 1990-11-30 | 1990-11-30 | Pipe damage prevention device for concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738700Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002704A (en) * | 2005-06-22 | 2007-01-11 | Ishikawajima Constr Mach Co | Concrete pump blocking prevention device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5056205U (en) * | 1973-09-21 | 1975-05-27 | ||
| JPS6182075U (en) * | 1984-11-01 | 1986-05-30 | ||
| JPH02153270A (en) * | 1988-12-05 | 1990-06-12 | Kyokuto Kaihatsu Kogyo Co Ltd | Control device for concrete pump |
-
1990
- 1990-11-30 JP JP1990128702U patent/JPH0738700Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5056205U (en) * | 1973-09-21 | 1975-05-27 | ||
| JPS6182075U (en) * | 1984-11-01 | 1986-05-30 | ||
| JPH02153270A (en) * | 1988-12-05 | 1990-06-12 | Kyokuto Kaihatsu Kogyo Co Ltd | Control device for concrete pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002704A (en) * | 2005-06-22 | 2007-01-11 | Ishikawajima Constr Mach Co | Concrete pump blocking prevention device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0738700Y2 (en) | 1995-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |