Detachable oil pipe for hydraulic cylinder

Abstract

The utility model discloses a detachable oil pipe for a hydraulic cylinder, which comprises a piston, a cylinder barrel, an end straight joint, a pipe hoop component, an oil pipe, a hinged joint, an arc joint seat, a guide sleeve and a piston rod, the piston rod is slidably mounted in the cylinder barrel through the guide sleeve and the piston, and oil ports are arranged on the walls of a rodless cavity and a rod cavity in the cylinder barrel through the piston. The arc connector base is arranged on the oil port, the two ends of the oil pipe are fixed to the end straight connector and the hinged connector in a welded mode to form the oil pipe assembly, the hinged connector is connected with the arc connector base, the end straight connector is connected with the valve body installed on the hydraulic cylinder, and the pipe hoop assembly is arranged between the oil pipe and the cylinder barrel and used for fixing the oil pipe. The structure is simple, and mounting and dismounting are easy; the maintainability and the using economical degree are high, and the possibility that the oil passing pipe is collided by the external environment in the using process of the hydraulic cylinder is avoided; by means of the structure, the safety and reliability of the hydraulic cylinder are improved to a large extent, and the application working condition range of the oil cylinder is widened.

Description

Technical Field

[0001] The utility model relates to a hydraulic cylinder, in particular to a detachable oil pipe for the hydraulic cylinder. Background Art

[0002] Existing hydraulic cylinders are directly connected to the valve body installed on the hydraulic cylinder through an oil pipe. Usually, the connection between the oil pipe and the hydraulic cylinder is fixed by welding, and the valve body and the hydraulic cylinder are connected by a joint. In this way, when the external environment collides with the oil pipe during the use of the hydraulic cylinder, the oil pipe is damaged, which makes maintenance more troublesome and time-consuming. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a detachable oil pipe for a hydraulic cylinder. The cylinder oil port is welded to the arc joint seat, and the two ends of the oil pipe are welded to straight joints to form an oil pipe assembly. The cylinder oil port arc joint seat and the oil pipe assembly are connected by an articulated joint to form a detachable oil pipe device for a hydraulic cylinder. The oil pipe protection device is formed by a support and an oil pipe protection cover connected by screws. The support is provided with a threaded hole, and the oil pipe protection cover is provided with a U-shaped elliptical light hole. The threaded hole and the U-shaped elliptical light hole are connected by screws to form a detachable oil pipe protection device. The structure is simple and easy to install and disassemble; the maintainability and economical use are high, and the possibility of the external environment colliding with the oil pipe during the use of the hydraulic cylinder is avoided; this structure greatly improves the safety, reliability and applicable working range of the hydraulic cylinder.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a detachable oil pipe for a hydraulic cylinder, comprising: a piston, a cylinder barrel, an end straight-through joint, a pipe clamp assembly, an oil pipe, an articulated joint, an arc joint seat, a guide sleeve, and a piston rod. The piston rod is slidably installed in the cylinder barrel through a guide sleeve and a piston, and the chamber in the cylinder barrel is divided into a rod chamber and a rodless chamber by the piston. Oil ports are arranged on the cavity walls of the rodless chamber and the rod chamber, and the arc joint seat is arranged on the oil port. The two ends of the oil pipe are respectively fixed to the end straight-through joint and the articulated joint by welding to form an oil pipe assembly. The articulated joint is connected to the arc joint seat, and the end straight-through joint is connected to the valve body installed on the hydraulic cylinder. The pipe clamp assembly is arranged between the oil pipe and the cylinder barrel to fix the oil pipe.

[0005] Furthermore, the arc joint seat is fixed on the outer circle of the cylinder oil port by welding.

[0006] Furthermore, the end straight-through connector is connected to the valve seat via threads.

[0007] Furthermore, the articulated joint is connected to the arc joint seat via threads.

[0008] Further, it further includes: screws, a protective cover, and supports. A plurality of the supports are arranged on the outer circumference of the cylinder barrel. Threaded holes are provided on the supports. The protective cover is sleeved on the oil pipe, and the protective cover and the supports are connected together by screws.

[0009] Further, U-shaped elliptical light holes are provided on both sides of the protective cover, and the threaded holes on the supports are connected to the U-shaped elliptical light holes on the protective cover by screws.

[0010] The beneficial effects of the present utility model are as follows:

[0011] This structure is simple, easy to install and disassemble, and convenient for maintenance;

[0012] 2) It has relatively high maintainability and economic efficiency in use;

[0013] 3) It avoids the possibility of the external environment colliding with the oil-passing oil pipe during the use of the hydraulic cylinder;

[0014] 4) This structure greatly improves the safety, reliability of the hydraulic cylinder and the applicable working conditions range of the oil cylinder. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic connection structural diagram of the oil pipe, the cylinder barrel and the valve body;

[0017] Figure 3 is a schematic structural diagram of the support;

[0018] Figure 4 is a schematic structural diagram of the protective cover;

[0019] In the figure: 1, piston; 2, cylinder barrel; 3, end straight-through joint; 4, screw; 5, protective cover; 6, pipe clamp assembly; 7, support; 8, oil pipe; 9, articulated joint; 10, arc joint seat; 11, guide sleeve; 12, piston rod. Specific Embodiments

[0020] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0021] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0022] As Figures 1-4 shown, a detachable oil pipe for a hydraulic cylinder includes: a piston 1, a cylinder barrel 2, an end straight-through joint 3, a pipe clamp assembly 6, an oil pipe 8, a hinged joint 9, an arc joint seat 10, a guide sleeve 11, and a piston 1 rod. The piston 1 rod is slidably installed in the cylinder barrel 2 through the guide sleeve 11 and the piston 1. The chamber in the cylinder barrel 2 is divided into a rod chamber and a rodless chamber by the piston 1. Oil ports are provided on the chamber walls of the rodless chamber and the rod chamber. The arc joint seat 10 is provided on the oil port. The two ends of the oil pipe 8 are respectively fixed to the end straight-through joint 3 and the hinged joint 9 in a welded form to form an oil pipe 8 assembly. The hinged joint 9 is connected to the arc joint seat 10. The end straight-through joint 3 is connected to a valve body installed on the hydraulic cylinder. The pipe clamp assembly 6 is provided between the oil pipe 8 and the cylinder barrel 2 for fixing the oil pipe 8.

[0023] The arc joint seat 10 is fixed to the outer circle of the oil port of the cylinder barrel 2 in a welded form.

[0024] The end straight-through joint 3 is connected to the valve seat by a thread.

[0025] The hinged joint 9 is connected to the arc joint seat 10 by a thread.

[0026] The detachable oil pipe 8 for a hydraulic cylinder further includes: screws 4, a protective cover 5, and supports 7. A plurality of the supports 7 are on the outer circle of the cylinder barrel 2. Threaded holes are provided on the supports 7. The protective cover 5 is sleeved on the oil pipe 8, and the protective cover 5 and the supports 7 are connected together by the screws 4.

[0027] U-shaped elliptical light holes are provided on both sides of the protective cover 5. The threaded holes on the supports 7 and the U-shaped elliptical light holes on the protective cover 5 are connected by the screws 4.

[0028] Among them, the hydraulic cylinder: is an actuator in the hydraulic system that converts hydraulic energy into mechanical energy, mainly composed of four major components: the cylinder barrel 2, the piston 1 rod, the piston 1, and the guide sleeve 11; the pipe clamp assembly 6: is used to fix the oil pipe 8 to prevent the oil pipe 8 from failing due to vibration; the oil pipe 8: plays a role in connecting the inside of the oil cylinder and the control valve body in the hydraulic cylinder and serves as a conduit for oil; the oil pipe 8 protection device: is assembled and connected with the supports 7 and the protective cover 5, is installed outside the hydraulic cylinder, and plays a protective role.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, or improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detachable oil pipe for a hydraulic cylinder, characterized in that: include: A piston, a cylinder barrel, an end straight-through joint, a pipe clamp assembly, an oil pipe, an articulated joint, an arc joint seat, a guide sleeve, and a piston rod. The piston rod is slidably installed in the cylinder barrel through a guide sleeve and a piston. The chamber in the cylinder barrel is divided into a rod chamber and a rodless chamber by the piston. Oil ports are arranged on the cavity walls of the rodless chamber and the rod chamber. The arc joint seat is arranged on the oil port. Both ends of the oil pipe are fixed to the end straight-through joint and the articulated joint by welding to form an oil pipe assembly. The articulated joint is connected to the arc joint seat, and the end straight-through joint is connected to a valve body installed on the hydraulic cylinder. The pipe clamp assembly is arranged between the oil pipe and the cylinder barrel to fix the oil pipe.

2. A detachable oil pipe for a hydraulic cylinder according to claim 1, characterized in that: The arc joint seat is fixed on the outer circle of the cylinder oil port in a welding manner.

3. The detachable oil pipe for a hydraulic cylinder according to claim 1, characterized in that: The end straight-through connector is connected to the valve seat through threads.

4. The detachable oil pipe for a hydraulic cylinder according to claim 1, characterized in that: The articulated joint is connected to the circular arc joint seat through threads.

5. The detachable oil pipe for a hydraulic cylinder according to claim 1, characterized in that: Also includes: Screws, protective covers, and supports. Multiple supports are on the outer circle of the cylinder barrel, and threaded holes are arranged on the supports. The protective covers are installed on the oil pipe, and the protective covers and supports are connected together by screws.

6. A detachable oil pipe for a hydraulic cylinder according to claim 5, characterized in that: U-shaped elliptical light holes are arranged on both sides of the protective cover, and the threaded holes on the support are connected with the U-shaped elliptical light holes on the protective cover through screws.

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