CN201262227Y - Novel piston guide ring - Google Patents

Abstract

The utility model relates to an engineering oil cylinder, in particular to novel piston guide ring capable of improving the working stability of the oil cylinder, prolonging service life and ensuring sealability. The utility model solves the problem in the prior piston guide ring that the dislocation is easy to occur in an oblique incision position under the impact of liquid flow, and a dislocation end directly acts on a sealing ring, thereby seriously affecting the service life of the sealing ring. In the novel piston guide ring, an incision for cutting off a ring body are formed on the ring body of the guide ring; the incision consists of two cross left-turned V-shaped branch incisions; the two branch incisions have equal length; the cross point of the two branch incisions is positioned in the center of the cross section of the guide ring; and an included angle between the two cross branch incisions is a right angle. The utility model has the advantages that an oblique incision is changed into the left-turned V-shaped incisions, and the two ends of the ring body in each left-turned V-shaped incision of the guide ring adopt an insertion structure; under the impact of the liquid flow, the dislocation phenomenon can not occur; furthermore, the direct impact of the liquid flow can be buffered compared with the prior oblique incision, so that the service life of the oil cylinder and the sealing ring can be effectively prolonged.

Description

The novel piston guide ring

Technical field

The utility model relates to the engineering oil cylinder, specifically is a kind of novel piston guide ring that can improve the oil cylinder working stability, increase the service life, guarantee sealability.

Background technique

After existing piston guide ring was worked repeatedly in oil cylinder and moved, its angular cut place wearing and tearing occurred through regular meeting, influences its leading role; If the internal diameter of guide ring is littler than the annular groove groove-root diameter of fixed guide ring on the piston, guide ring is behind the piston of packing into, seam can appear drawing in its angular cut place, at work, because pressure is higher, the pressure of liquid stream can impact seal ring by the seam that draws at guide ring angular cut place, and under repeated stock, the seal ring distortion loses seal action; Even more serious is that under the impact of liquid stream, the piston guide ring misplaces at the angular cut place, misplaces to hold to directly act on seal ring, has a strong impact on the working life of seal ring.

Summary of the invention

The utility model is prone to dislocation for the impact that the angular cut that solves existing piston guide ring is in liquid stream, and the dislocation end directly acts on seal ring, has a strong impact on the seal ring problem in working life, and a kind of novel piston guide ring is provided.

The utility model is to adopt following technological scheme to realize: the novel piston guide ring, have the otch that blocks ring body itself on the ring body of guide ring, described otch intersects by two and is "〉" the branched slits formation of shape; Two branched slits are isometric, and the point of intersection of two branched slits is positioned at the center of guide ring cross section; The crossing angle of two branched slits is the right angle.

Compared with prior art, the utility model changes angular cut into "〉" the shape otch, guide ring "〉" the ring body two ends of shape incision are a kind of plug in structure, under the impact of liquid stream, inconsistent phenomenon can not appear, and then, can effectively prolong the working life of oil cylinder, seal ring more than the direct impact that existing angular cut more can buffer solution stream.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Among the figure: the 1-ring body; The 2-otch.

Embodiment

The novel piston guide ring has the otch 2 that blocks ring body 1 itself on the ring body 1 of guide ring, described otch 2 intersects by two and is "〉" branched slits of shape constitutes; Two branched slits are isometric, and the point of intersection of two branched slits is positioned at the center of guide ring cross section; The crossing angle of two branched slits is the right angle.

Claims (3)

1, a kind of novel piston guide ring has the otch (2) that blocks ring body (1) itself on the ring body of guide ring (1), it is characterized in that: described otch (2) intersects by two and is "〉" branched slits of shape constitutes.

2, novel piston guide ring according to claim 1, it is characterized in that: two branched slits are isometric, and the point of intersection of two branched slits is positioned at the center of guide ring cross section.

3, novel piston guide ring according to claim 2 is characterized in that: the crossing angle of two branched slits is the right angle.

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