CN115533819A

CN115533819A - Inner hole rubber ring assembling tool

Info

Publication number: CN115533819A
Application number: CN202211283466.8A
Authority: CN
Inventors: 齐红衢
Original assignee: Yingpu Fluid Technology Co ltd
Current assignee: Yingpu Fluid Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2022-12-30

Abstract

The invention relates to the technical field of valve sleeve assembly, in particular to an inner hole rubber ring assembly tool which can simplify assembly operation of an O-shaped ring, is manually completed and reduces cost.

Description

Inner hole rubber ring assembling tool

Technical Field

The invention relates to the technical field of valve sleeve assembly, in particular to an inner hole rubber ring assembly tool.

Background

The valve sleeve is an important part of the valve assembly, for example, as shown in fig. 1, a ring groove is formed in the inner side of an opening at one end of the valve sleeve, an O-shaped ring needs to be installed in the ring groove, and due to the fact that the opening is small in size and the hole depth has a certain distance, manual assembly cannot be achieved, operation is difficult, a high-precision instrument needs to be used, and assembly cost is too high.

Disclosure of Invention

In order to solve the problems that an O-shaped ring in an existing valve sleeve is difficult to assemble and high in cost by means of a high-precision instrument, the invention provides an inner hole rubber ring assembling tool which can simplify assembling operation of the O-shaped ring, is completed manually and reduces cost.

The technical scheme is as follows: the utility model provides an inner hole rubber ring assembly fixture, its characterized in that, it includes shrink cover and pull rod, the shrink cover includes the cylindricality section, cylindricality section one end is provided with two flat poles that the interval was arranged, two form the shrink groove between the flat pole, the flat rod tip is seted up flutedly, the pull rod activity is run through the shrink cover, pull rod one end is passed shrink groove and tip are provided with the draw-hook, other end cover are equipped with spring and end fixing have the nut, the shrink groove is close to the shrink hole has been seted up to the one end of cylindricality section, the recess is close to the one end of flat rod tip is for restoring to the throne protruding, the other end is the location shaft shoulder.

The device is further characterized in that the outer wall of the flat rod is carved with a positioning mark.

After the O-shaped ring is adopted, the O-shaped ring is sleeved in the groove at the end part of the flat rod, when the pulling hook at the end part of the pull rod pulls the O-shaped ring to deform, the end part of the flat rod can be contracted to enable the integral outer diameter to be smaller than the bore diameter of the inner bore, then the integral pull rod extends into the valve sleeve, the nut is pressed to enable the pull rod to move and not to stretch the O-shaped ring, the O-shaped ring is restored and arranged in the ring groove, the flat rod and the pull rod are withdrawn from the valve sleeve, manual completion can be achieved, assembly operation of the O-shaped ring is simplified, and cost is reduced.

Drawings

FIG. 1 is a schematic view of a valve housing;

FIG. 2 is a schematic view of a shrink sleeve of the present invention;

FIG. 3 is a schematic view of the drawbar of the present invention;

FIG. 4 is a schematic drawing of an O-ring stretch deformation;

FIG. 5 is a cross-sectional view of the shrink sleeve of FIG. 2;

FIG. 6 is an enlarged view of the point A in FIG. 5;

fig. 7 is a schematic view of the O-ring in position.

Detailed Description

See fig. 2 to 7, an inner hole rubber ring assembly fixture, it includes shrink sleeve 1 and pull rod 2, shrink sleeve 1 includes

cylindricality section

3, 3 one end of cylindricality section is provided with two interval arrangement's flat pole 4, forms shrink groove 5 between two flat pole 4, and flat pole 4 tip is seted up flutedly 6, and pull rod 2 activity runs through

shrink sleeve

1, and 2 one end of pull rod is passed shrink groove 5 and the tip is provided with draws and colludes 7, and the other end cover is equipped with spring 8 and end fixing has nut 9.

The end of the contraction groove 5 near the cylindrical section 3 is provided with a contraction hole 10, so that the two flat rods 4 can be better contracted towards the middle.

The one end that recess 6 is close to flat pole 4 tip is for restoring to the throne protruding 11, the other end is location shoulder 12, and location shoulder 12 is used for the position when O shape circle 13 warp spacing, and protruding 11 that restore to the throne guarantee that O shape circle 13 restores the back, can let O shape circle 13 install when flat pole 4 withdraws from and target in place. The outer wall of the flat rod 4 is carved with a positioning mark 14 for determining the insertion depth of the flat rod 4.

The overall outer diameter of the shrink sleeve 1 and the pull rod 2 is slightly smaller than the bore diameter of the inner bore of the valve sleeve 14.

The working principle is as follows: firstly, the nut 9 is extruded to ensure that the pull hook 7 at the end part of the pull rod 2 extends out of the end part of the contraction groove 5; sleeving the O-shaped ring 13 in the contraction groove 5, slowly loosening the nut 9, retracting the pull rod 2, hooking the pull hook 7 on the O-shaped ring 13, pulling the O-shaped ring 13 to deform under the action of the elastic force of the spring 8,

the head of the flat rod 4 is contracted, and the integral external diameter of the flat rod 4 and the O-shaped ring 13 is smaller than the bore diameter of the inner bore of the valve sleeve 14; after the head of the flat rod 4 is integrally arranged in the valve sleeve 14, the nut 9 is pressed to extend the pull rod 2, and the O-shaped ring 13 is released to recover the pull rod; the nut 9 is pressed and fixed, the valve sleeve 14 is integrally withdrawn, the reset bulge 11 is contacted with the O-shaped ring 13, and the O-shaped ring 13 is ensured to be assembled in place.

Claims

1. The utility model provides an inner hole rubber ring assembly fixture, its characterized in that, it includes shrink cover and pull rod, the shrink cover includes the cylindricality section, cylindricality section one end is provided with two interval arrangement's flat pole, two form the shrink groove between the flat pole, flat tip is seted up flutedly, the pull rod activity is run through the shrink cover, pull rod one end is passed shrink groove and tip are provided with the hook, other end cover is equipped with spring and end fixing and has the nut, the shrink groove is close to the shrink hole has been seted up to the one end of cylindricality section, the recess is close to flat tip's one end is for restoring to the throne protruding, the other end is the location shaft shoulder.

2. The inner hole rubber ring assembling tool according to claim 1, wherein positioning marks are engraved on the outer wall of the flat rod.