CN102758809A - Air cylinder with oriented function - Google Patents

Abstract

The invention discloses an air cylinder with an oriented function. The air cylinder with the oriented function is characterized by comprising an outer cylinder, an inner cylinder, a piston and a piston rod, wherein the piston rod is fixedly connected with the outer cylinder; an upper cavity is defined by the inner cylinder, the piston and the outer wall of the piston rod; a lower cavity is defined by the outer cylinder, the inner cylinder and the outer wall of the piston rod; the air inlet of the air cylinder runs through the lower cavity through the outer cylinder; the air outlet of the air cylinder runs through the upper cavity through the interior of the piston rod; when in operation, orientation is realized through the inner wall of the outer cylinder and the restriction of the direction of the piston rod; when in air inflation, air flows into the lower cavity from the air inlet, the volume of the lower cavity is increased, because the piston and the piston rod are fixedly connected to the outer cylinder, the inner cylinder jacks upward, the volume of the upper cavity is decreased, and the air flows out of the air outlet. The air cylinder with the oriented function has the advantages that the structure is compact, and the problem that in the narrow jacking space, a standard air cylinder has less possibility of being matched with an orientation device is solved.

Description

Cylinder with guide function

Technical field

What the present invention relates to is a kind of cylinder with guide function, belongs to cylinder and pneumatic components and parts technical field.

Background technique

Promotion piston and piston rod work are passed through in general employing of universal standard cylinder, and during apolegamy, apolegamy guiding device, and this guiding device in addition generally outside cylinder, occupies certain space.When the jacking space is narrow and small, adopt the standard cylinder to cooperate comparatively difficulty of guiding device again.

Summary of the invention

What the present invention proposed is a kind of cylinder with guide function, and its purpose is intended to overcome standard cylinder difficult defective of using guiding device in small space.

Technical solution of the present invention: it is characterized in that comprising outer shell, inner casing, piston, piston rod; Wherein piston rod is fixedly connected with outer shell; Surround upper chamber by inner casing and piston and piston rod outer wall; Surround lower chambers by outer shell and inner casing and piston rod outer wall, the suction port of cylinder feeds lower chambers through outer shell, and the air outlet is through the inner upper chamber that feeds of piston rod.

Advantage of the present invention: compact structure, solved in narrow and small jacking space, the standard cylinder cooperates guiding device to use the problem of difficulty.

Description of drawings

Fig. 1 is the structural representation that cylinder air inlet, air outlet are installed in cylinder bottom.

Fig. 2 is the structural representation that cylinder air inlet, air outlet are installed in the cylinder sidepiece.。

Among the figure 1 is outer shell, the 2nd, seal arrangement (three), the 3rd, inner casing, the 4th, piston, the 5th, piston rod, the 6th, upper chamber, the 7th, lower chambers, the 8th, air outlet, the 9th, suction port, the 10th, external assembly department.

Embodiment

The contrast accompanying drawing; Its structure is to comprise outer shell 1, inner casing 3, piston 4, piston rod 5; Wherein piston rod 5 is fixedly connected with outer shell 1, and inner casing 3 surrounds upper chamber 6 with piston 4 and piston rod outer wall, and outer shell 1 surrounds lower chambers 7 with inner casing 3 and piston rod outer wall; The suction port 9 of cylinder feeds lower chambers 7 through outer shell 1, and air outlet 8 is through the inner upper chamber 6 that feeds of piston rod.

Between outer shell 1 and the inner casing 3 first seal arrangement is arranged, second seal arrangement 2 arranged between piston rod 5 and the inner casing 3, the 3rd seal arrangement 2 arranged between piston 4 and the inner casing 3.

The guide function of this cylinder is to realize through cooperating between outer shell and the inner casing, and promptly inner casing 3 receives the outer inside wall of cylinder and piston rod to realize that direction constrain realizes leading, and does not need to increase in addition guiding device.

External assembly department 10 is arranged at the inner casing top, can be a cylinder cap that is fixedly connected with inner casing, the connection set of common cylinder end is installed on this cylinder cap, as is threaded.

During inflation, gas flows into lower chambers from suction port 9, and the lower chambers volume increases, because piston is fixedly connected on the outer shell with piston rod, therefore, and the inner casing jacking that makes progress, upper chamber's volume reduces, and gas is 8 outflows from the air outlet.

Claims (2)

1. the cylinder that has guide function; It is characterized in that comprising outer shell, inner casing, piston, piston rod; Wherein piston rod is fixedly connected with outer shell, surrounds upper chamber by inner casing and piston and piston rod outer wall, surrounds lower chambers by outer shell and inner casing and piston rod outer wall; The suction port of cylinder feeds lower chambers through outer shell, and the air outlet is through the inner upper chamber that feeds of piston rod; During work, inner casing receives the direction constrain of the outer inside wall of cylinder and piston rod to realize guiding.

2. the cylinder with guide function according to claim 1 is characterized in that first seal arrangement is arranged between outer shell and inner casing, and second seal arrangement is arranged between piston rod and inner casing, and the 3rd seal arrangement is arranged between piston and the inner casing.

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