CN201475502U - Elastic expansion structure for tube bundle - Google Patents

Abstract

An elastic expansion structure for tube bundle is composed of a ring body with two open ends, a fastening part near one open end, a fastening part near another open end, and an elastic expansion part on the ring body near said fastening part.

Description

Tube bundle elastic expansion and contraction structure

technical field

The utility model relates to a fixed tube bundle when two pipe fittings are threaded and connected with each other. A shrinkage part is bent at a predetermined position on the ring body of the tube bundle, so that the two ends of the tube bundle still have the effect of elastic expansion and contraction after fastening.

Background technique

The tube bundle applied by the previous inventor is shown in Figure 1, which includes a ring body 1 with two open ends, one of which is bent with a buckle hook portion 11, and a buckled portion 12 protrudes from the adjacent end of the other open end. After the hook part 11 passes over the buckle part 12 by the clamping of a clamp tool, the hook part 11 is hooked on the back of the buckle part 12 to fix it, so that the two parts in the ring body 1 can wear each other. The connecting pipe fittings are clamped and fixed; however, since the inner surface of the ring body 1 is the same arc-shaped plane, when the two are superimposed, it will not be able to form a perfect circle shape, resulting in a local gap S, resulting in high-pressure liquid gas in the pipe. There is a risk of leakage from there.

Therefore, the inventor provided a concave surface 10 with a larger inner diameter (as shown in FIG. 2 ) at an open end of the ring body 1, and then let the other open end of the ring body 1 buckle and tighten at both ends of the ring body 1. , it can move along the concave surface 10, so that the inner surface of the entire ring body 1 can form a true perfect circle when the bundle tube is tightened, so that there will be no gaps at the ring bundle.

However, in order to be suitable for the use of pipe fittings with different pipe diameters, the above-mentioned two kinds of pipe bundles or other similar pipe bundles must be made into pipe bundles of different sizes so that they can be used corresponding to pipe fittings within a certain pipe diameter range, but if the pipe fittings When the outer diameter is slightly larger than the original specification of the corresponding tube bundle, if you want to use a tube bundle with a size 1 larger, the tightening force may be insufficient and too loose, but if you use the original specification tube bundle, you may It will cause difficulty in buckling the two ends of the pipe; or, if the outer pipe fittings of the two mutually passing pipes are made of soft materials (such as rubber pipes), even if the two ends of the pipe bundle are buckled and tightened Sometimes, the soft pipe fittings will be restrained by too strong tightening force, which will cause the soft pipe fittings to be easily damaged. Therefore, we found that the pipe fittings are usually broken by the tightening part, so that we can see when we see it.

Contents of the invention

In order to overcome the above-mentioned problems that the applicable pipe diameter range of the known improved pipe bundle is limited, and the soft pipe fittings may be damaged due to too much tightening force, the utility model provides a The effect of elastic expansion and contraction, and the technical solution adopted by the utility model to solve its technical problems is: the tube bundle of the ring body with two open ends and respectively provided with a buckle hook part and a buckle part, so that it is adjacent to the buckle hook part. A shrinkage part is arranged on the circle body.

The beneficial effect of the utility model is that, when the two ends of the tube bundle are buckled together by the stretching and shrinking part bent on the tube bundle ring body of the utility model, the elastic stretching and shrinking effect of the stretching and shrinking part itself makes the pipe fittings be coiled. The excessive tightening force generated during the bundle can be relieved by moderate tension, so that the tube bundle has an appropriate tightening force without damaging the pipe fittings, and at the same time, the tube bundle can be applied to a wider range of pipe diameters.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural schematic diagram of a known tube bundle 1.

Fig. 2 is a schematic structural view of a known tube bundle 2.

Fig. 3 is a three-dimensional schematic diagram of the tube bundle of the utility model.

Fig. 4 is a schematic side view of the tube bundle of the utility model.

Fig. 5 is a schematic diagram of the utility model after the tube bundle is coiled and bundled with tube fittings.

In the figure 1. ring body, 11. buckle and hook part, 12. buckle part, 13. stretch and shrink part.

Detailed ways

Please refer to Fig. 3 and Fig. 4, the tube bundle of the present utility model includes a ring body 1, and the ring body 1 has two open ends, and a protruding buckle part is provided at the adjacent end of one of the open ends. 12, and the end of the other open end is provided with a hook part 11 bent to form a hook shape, so that the hook part 11 can be hooked on the back of the buckled part 12, and on the ring body 1 adjacent to the hook part 11 , and then bend to set the protruding expansion and contraction part 13, and the expansion and contraction part 13 has the effect of elastic expansion and contraction.

Therefore, please refer to FIG. 5 again. When the loop body 1 of the tube bundle loops the two pipe fittings that pass through each other, after the hook portion 11 crosses over the buckle portion 12 and hooks the buckle portion 12, the loop Due to the shrinkage of the inner diameter of the body 1 itself, a tightening force is generated on the pipe fittings, and the two connected pipe fittings are tightly bound and fixed. The effect of elastic expansion and contraction, so that if the tightening force generated by the ring body 1 on the pipe is too large, the expansion and contraction part 13 can produce appropriate relief, so that the tightening force of the ring body 1 is released slightly without Excessive damage to the pipe fittings, especially for pipe fittings made of soft materials, not only retains the proper tightening force, but also has a more protective effect. At the same time, the pipe bundles of the same specification can be used in a larger range of different pipe diameters. .

Claims (1)

1. a tube bank elasticity hypertonic is constructed, it is characterized in that, if one has the circle body of two open ends, wherein the contiguous place of the end of an open end be provided with protrude out be subjected to button portion, another end, open end is provided with the hook shape and can catches on the buckling part that is subjected to button portion, and wherein this is adjacent to the crooked again hypertonic portion of a tool elasticity hypertonic effect that establishes on the circle body of buckling part.

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