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a hydraulic cylinder

A hydraulic cylinder and cylinder body technology, applied in the field of hydraulic cylinders, can solve the problems of easy loosening of the piston, inconvenient use, and poor applicability, and achieve the effects of not easy loosening, good applicability, and convenient use

Active Publication Date: 2019-10-11
济宁市勤创机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a hydraulic cylinder, which solves the defects that there is only one predetermined position where the piston rod can maintain positioning without pressure, and the problems that the piston is easy to loose, inconvenient to use, and poor in applicability

Method used

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Embodiment Construction

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0026] Refer below Figure 1 to Figure 4 To further explain this application, such as figure 1 and Figure 4 A hydraulic cylinder shown includes a cylinder body 1, a piston 2 is arranged in the cylinder body 1, a piston rod 3 is connected to the piston 2, and several ring-shaped distribution cylinders are arranged on the outer circumference of the piston rod 3 Locking member 4, the cylinder wall of described cylinder body 1 is provided with several rows of locking devices identical to the number of locking members 4, and each row of locking devices includes several locking mechanisms 5, and several locking mechanisms 5 along the The axes of the cylinder body 1 are arranged in sequence, and the locking mechanism 5 can realize the locking of the pis...

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Abstract

The invention provides a hydraulic cylinder. The hydraulic cylinder comprises a cylinder body, a piston is arranged in the cylinder body, a piston rod is connected to the piston, and a plurality of locking pieces are arranged on the piston rod; a plurality of columns of locking devices are arranged on the cylinder body, each column of locking devices comprise a plurality of locking mechanisms, andthe locking mechanisms can lock the piston rod by locking the locking pieces; a three-way one-way valve, a first three-way joint and a second three-way joint are arranged on the outer side of the cylinder body, an outlet of the three-way one-way valve communicates with a liquid inlet of each two-position three-way valve, and a first liquid inlet of the three-way one-way valve, an oil inlet and anoil outlet of the cylinder body at the rodless cavity end all communicate with a first outlet of a reversing valve of the hydraulic cylinder through the first three-way joint; and a second liquid inlet of the three-way one-way valve, an oil inlet and an oil outlet of the cylinder body at the rod cavity end all communicate with a second outlet of the reversing valve of the hydraulic cylinder through the second three-way joint. According to the hydraulic cylinder, the situation that positioning of the piston rod can be kept at a plurality of preset positions without depending on pressure keeping of a rodless cavity is achieved, and the use is convenient.

Description

technical field [0001] The invention relates to a hydraulic cylinder. Background technique [0002] During the use of the hydraulic cylinder, it usually needs to stay for a period of time after a single action is completed. For example, after the rodless cavity enters the oil, the piston moves and drives the piston rod to fully extend, in order to ensure continuous strong support for the object on the piston rod , Usually, the rodless chamber will be continuously pressurized to apply continuous hydraulic pressure to the piston, so that the piston rod will stay still, so that the piston rod will not retract into the cylinder under force. However, there are also certain defects in this way, that is, due to the continuous pressure maintaining of the rodless cavity, the energy consumption is increased to a certain extent. This long-term continuous pressure holding will cause certain damage to the entire hydraulic system. Therefore, it has been studied that the piston rod can b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/26F15B15/14
Inventor 林潘忠
Owner 济宁市勤创机械有限公司
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