CN2260938Y - Screwthrad sealing connection structure - Google Patents

Abstract

The utility model relates to a novel screw-thread sealing connection structure which is suitable for sealing with screw-thread connection. The utility model comprises a connection structure with screw-threads on one end or both ends. The utility model is characterized in that a groove is arranged on the screw-threads and is provided with a rubber sealing ring. Because the rubber sealing ring is used for sealing the screw-thread connection, the utility model has the advantages of easy installation, cleanness, good sealing effect, easy disassembly, easy maintenance, lower cost, etc.

Description

Novel thread seal linkage structure

The utility model belongs to the pipeline technical field that is threaded, specifically a kind of novel thread seal linkage structure.

As everyone knows, spunyarn structure or polytetrafluoroethylplastic plastic sealing are normally adopted in the sealing that is used to be threaded at present, and these two kinds of seal form bother when operation, waste time and energy, all belong to disposable sealing in addition, therefore also just be not easy to maintenance, cost is also higher simultaneously.

The purpose of this utility model provides a kind of novel thread seal linkage structure that adopts the O-ring seal sealing.

The purpose of this utility model is achieved in that it comprises the screwed linkage structure in one or both ends, it is characterized in that having a groove at least on screw thread, is provided with a seal ring in groove.Above-mentioned linkage structure is meant screw nipple or connects plug that the form of screw thread can be pipe thread or regular screw threads.This linkage structure in use, as long as the screw connection structure that will have a seal ring can reach the technical requirements of sealing by after threaded connector nature precession and compressing O-ring seal.

The utility model adopts the O-ring seal sealing owing to will be threaded, and therefore has following advantage: simple installation, clean, good sealing effect, be convenient to the dismounting maintenance, but also have characteristics such as cost is low, applied range.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is a kind of half section structural representation of the present utility model

Fig. 2 is an another kind of half section structural representation of the present utility model

By shown in Figure 1,1 is that the connecting tube that two ends have taper pipe thread 2 respectively (is called for short: the silk head), on the arbitrary position of two ends taper pipe thread 2, have agroove 3, the size of groove and geometrical shape should be decided according to the size and the intensity of connecting tube, respectively are provided with an O-ring seal 4 in each groove 3.This connecting tube in use, the seal ring of getting ready in advance according to technical requirementss different on the engineering earlier is mounted on respectively in twogrooves 3, by after the natural precession of threaded connector and compressing O-ring seal, can reach the technical requirements of sealing then.Fig. 2 is the connecting tube 1 that two ends have pipe thread 2 respectively, just have agroove 3 as required on the arbitrary position of one end pipe thread 2, and be provided with an O-ring seal 4 ingroove 3, and other is identical with aforesaid Fig. 1.

Claims (3)

1, a kind of novel thread seal linkage structure that is applicable to seal with screwed joint, it comprises the screwed linkage structure in one or both ends, it is characterized in that having a groove at least on screw thread, is provided with a seal ring in groove.

2, thread seal linkage structure according to claim 1 is characterized in that connecting arrangement is meant screw nipple or connects plug.

3, thread seal linkage structure according to claim 1 is characterized in that the form of screw thread is meant pipe thread or regular screw threads.

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