Device for fixing the hydraulic piping of construction equipment

Patent metadata

Field	Value
Publication number	US-9255383-B2
Application number	US-201114351201-A
Country	US
Kind code	B2
Filing date	Oct 17, 2011
Priority date	Oct 17, 2011
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

Provided is a device for fixing hydraulic piping to prevent the hydraulic piping from sliding down even when the bolt for coupling a clamp which fixes the hydraulic piping is loosened by the vibration generated during operation. The device for fixing the hydraulic piping of construction equipment includes: a piping sheet fixed to a boom structure; upper and lower clamps constituted by a fixed part fixed to the piping sheet and a concave groove for supporting the hydraulic piping; a coupling member for fixing the fixed part to the piping sheet; a hydraulic pipe fixing plate mounted on the piping sheet; a connecting hole for connecting a main pipe, which is connected to a main control valve mounted on an upper rotating body, to the hydraulic pipe disposed on the boom structure; and a bolt and nut for fixing the connecting hole to the hydraulic pipe fixing plate.

First claim

The invention claimed is:

1. A hydraulic piping fixing device for a construction machine, including a piping seat weldingly fixed to a boom structure, a pair of upper and lower clamps having a fixing portion fixed onto the piping seat and arc-shaped grooves symmetrically formed on the left and right sides of the fixing portion to support hydraulic piping arranged on the boom structure, and a fastening member configured to securely fix the fixing portion of the upper and lower clamps to the piping seat, the hydraulic piping fixing device comprising:
a hydraulic piping fixing plate mounted on the piping seat;
a connector configured to joint-connect a main piping that is connected to a main control valve mounted on an upper swing structure and a hydraulic piping that is arranged on the boom structure; and
a bolt and a nut configured to securely fix the connector to the hydraulic piping fixing plate;
whereby when the fastening member is loosened due to vibration occurring during work, the hydraulic piping are prevented from drooping by the connector fixed to the hydraulic piping fixing plate.

2. The hydraulic piping fixing device according to claim 1 , wherein the hydraulic piping fixing plate is securely fixed to the piping seat by a bolt that is fastened to a screw hole formed on a side surface of the piping seat.

3. The hydraulic piping fixing device according to claim 1 , wherein the hydraulic piping fixing plate comprises a first fixing plate mounted on the fixing portion of the upper clamp, and a second fixing plate which is curvedly formed to extend from the first fixing plate and to which the bolt for securely fixing the connector to the hydraulic piping fixing plate is fastened.

4. The hydraulic piping fixing device according to claim 1 , wherein the hydraulic piping fixing plate is mounted on an auxiliary piping seat weldingly fixed to the boom structure.

5. The hydraulic piping fixing device according to claim 1 , wherein the nut engaged with the bolt for securely fixing the connector to one surface of the hydraulic piping fixing plate is weldingly fixed to the other surface of the hydraulic piping fixing plate.

6. The hydraulic piping fixing device according to claim 1 , wherein the bolt for securely fixing the connector to the hydraulic piping fixing plate is primarily fastened to a screw hole that is formed on a plate-shaped connector fixed to a hydraulic piping side, and then is secondarily fastened to the nut.

7. A hydraulic piping fixing device for a construction machine, including a piping seat weldingly fixed to a boom structure, a pair of upper and lower clamps having a fixing portion fixed onto the piping seat and arc-shaped grooves formed to extend from the fixing portion to support a hydraulic piping arranged on the boom structure, and a fastening member configured to securely fix the fixing portion of the upper and lower clamps to the piping seat, the hydraulic piping fixing device comprising:
a hydraulic piping fixing plate mounted on the piping seat;
a connector configured to joint-connect a main piping that is connected to a main control valve mounted on an upper swing structure and a hydraulic piping that is arranged on the boom structure; and
a bolt and a nut configured to securely fix the connector to the hydraulic piping fixing plate;
whereby when the fastening member is loosened due to vibration occurring during work, the hydraulic piping are prevented from drooping by the connector fixed to the hydraulic piping fixing plate.

8. The hydraulic piping fixing device according to claim 7 , wherein the hydraulic piping fixing plate is securely fixed to the piping seat by a bolt that is fastened to a screw hole formed on a side surface of the piping seat.

9. The hydraulic piping fixing device according to claim 7 , wherein the hydraulic piping fixing plate comprises a first fixing plate mounted on the fixing portion of the upper clamp, and a second fixing plate which is curvedly formed to extend from the first fixing plate 66 and to which the bolt for securely fixing the connector to the hydraulic piping fixing plate is fastened.

10. The hydraulic piping fixing device according to claim 7 , wherein the hydraulic piping fixing plate is mounted on an auxiliary piping seat weldingly fixed to the boom structure.

11. The hydraulic piping fixing device according to claim 7 , wherein the nut engaged with the bolt for securely fixing the connector to one surface of the hydraulic piping fixing plate is weldingly fixed to the other surface of the hydraulic piping fixing plate.

12. The hydraulic piping fixing device according to claim 7 , wherein the bolt for securely fixing the connector to the hydraulic piping fixing plate is primarily fastened to a screw hole that is formed on a plate-shaped connector fixed to the hydraulic piping side, and then is secondarily fastened to the nut.

Assignees

• Go Joon-Seog
• Jo Sung-Yong
• Volvo Constr Equip Ab

Inventors

• Go Joon-Seog
• Jo Sung-Yong

Classifications

• E02F9/14 Primary

  Booms {only for booms with cable suspension arrangements (for booms or manipulators with cable suspensions for suction pipes E02F3/905 takes precedence; for booms per se E02F3/38; E02F3/34 for bucket-arms)}; Cable suspensions · CPC title

• E02F9/0875

  Arrangement of valve arrangements on superstructures (arrangement of hydraulic hoses E02F9/2275 takes precedence; valves per se E02F9/2267) · CPC title

• E02F9/2275 Primary

  Hoses and supports therefor and protection therefor · CPC title

• F16L3/237

  for two pipes · CPC title

• F16L3/1033

  with two members engaging the pipe, cable or tubing, the two members being joined only on one side of the pipe · CPC title