CN109404586A

CN109404586A - A kind of tap with airtight and fluid tight screw thread based on ergonomics improvement

Info

Publication number: CN109404586A
Application number: CN201811651382.9A
Authority: CN
Inventors: 韩辉; 肖吉军; 陈扬扬; 郭燕燕
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2018-12-31
Filing date: 2018-12-31
Publication date: 2019-03-01

Abstract

The invention discloses an ergonomically improved faucet with air-tight and liquid-tight threads, comprising a sealing gasket, a faucet body and a water inlet end connecting pipe integrated with the faucet body, the water inlet end is connected to The pipe is provided with an external thread, and the sealing washer is sleeved on the external thread of the connection pipe at the inlet end and abuts against the faucet body. Different from the prior art, the external thread is divided into two sections, A and B, where A Section B is the section close to the body of the faucet, Section B is the section away from the body of the faucet, the thread pitch of Section B is adapted to the pitch of the internal thread of the matching water pipe joint, and the pitch of the thread of Section A is slightly smaller than that of Section B. The thread pitch of segment A is 90%-95% of the thread pitch of segment B. Section A is 5‑10mm in length. From the connection of sections A and B to the faucet body, the thread pitch of section A gradually decreases to 90%-97% of the thread pitch of section B. The faucet has good air tightness and liquid tightness, and has a long service life.

Description

A kind of tap with airtight and fluid tight screw thread based on ergonomics improvement

Technical field

The present invention relates to tap, specifically a kind of water with airtight and fluid tight screw thread based on ergonomics improvement Faucet.

Background technique

Two tube-like pieces are connected through a screw thread, because pipeline effect is usually to pass through gas and liquid, for air tight leakage Water, i.e. holding high-air-tightness and fluid tight, general using rubber gasket is placed at screw connection, being threadedly engaged can not With enough air-tightness and fluid tight, it otherwise can not connect, because there is the presence of tolerance, only be screwed in two pipe fittings Compression seal washer afterwards just forms obturation effect between seal washer and screw thread, however as the aging elasticity of seal washer Decline, which will appear, is threadedly engaged absent-mindedness, leads to leak leakage problem, there is also leakages even some product seal washers are unaged The substandard products phenomenon of water gas leakage.

Summary of the invention

The purpose of the present invention is be directed to above situation, provide it is a kind of based on ergonomics improvement with airtight and fluid tight The tap of screw thread, this tap is airtight and fluid tight preferable, and service life is longer.

Realizing the technical solution of the object of the invention is:

A kind of tap with airtight and fluid tight screw thread based on ergonomics improvement, including seal washer, tap sheet Body and the water inlet end connecting tube being linked together with faucet body, the water inlet end connecting tube are equipped with external screw thread, the gasket Circle is socketed on the external screw thread of water inlet end connecting tube to be abutted against with faucet body, unlike the prior art, the external screw thread It is divided into two sections of A, B, wherein A sections is close to one section of faucet body, B section one sections for separate faucet body, B sections of screw thread Screw pitch is adapted with the internal screw thread screw pitch of the water pipe head of mating, its screw pitch of A sections of screw thread is slightly less than B sections of thread pitch.

Preferably, A sections of length is 5-10mm.

Further, A sections of thread pitch is the 90%-97% of B sections of thread pitch.

Further, from A, B sections of junctions to the direction of faucet body, A sections of thread pitch is gradually decreased as B sections of spiral shells The 90%-97% of line screw pitch.

The water inlet end connecting tube external screw thread of existing tap is equidistant screw pitch, can normally with the water pipe head spiral shell that is adapted to It connects, screws in the internal screw thread of water pipe, tap water inlet end connecting tube external screw thread of the invention, due to A sections of B sections of thread pitch ratios Constant worm pich screw pitch is smaller, so water pipe was threaded into for B sections before this when being spirally connected with water pipe head, after reaching A sections of screw threads, by It is slightly less than B sections of thread pitch in A sections of thread pitch, then the equidistant internal screw thread of the side and water pipe head of A sections of screw threads is another Side generates pressure, continues to screw in, and similarly generates in B sections of externally threaded sides and the other side of the equidistant internal screw thread of water pipe head Pressure, the pressure direction of A sections of screw threads generation is with the pressure direction of B sections of screw threads generation on the contrary, namely water pipe internal screw thread is to the fire hose Externally threaded B sections normal constant worm pich and A sections of fine thread parts generate reversal interlocking relays, so that bidirectional locking effect is produced, Existing tap and water pipe head generally use engineering plastics, and certain deformation can be generated at internal and external threads cooperation, to make double More preferably to locking effect, the suitable length of A sections of fine threads is designed in addition, makes to be threadedly engaged and is compressed just centainly after bidirectional locking The seal washer of degree, such triple seal solve the problems, such as gas leakage leakage, also solve rubber gasket aging bring It is threadedly engaged absent-mindedness problem.

This tap is airtight and fluid tight preferable, and service life is longer.

Detailed description of the invention

Fig. 1 is that band of the embodiment of the present invention is airtight and the structural schematic diagram of the tap of fluid tight screw thread；

Fig. 2 is the schematic diagram of tap shown in FIG. 1 and water pipe head screw-internal thread fit；

Fig. 3 is the enlarged drawing in the portion C in Fig. 2.

In figure, 2-1-2.B sections of screw thread of 2-1-1.A sections of 2-1. external screw thread of 1. faucet body, 2. water inlet end connecting tube 3. seal washer of screw thread, 4. water pipe head.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Embodiment:

As shown in Figure 1, a kind of tap with airtight and fluid tight screw thread based on ergonomics improvement, including seal washer 3, faucet body 1 and the water inlet end connecting tube 2 being linked together with faucet body 1, the water inlet end connecting tube 2 are equipped with outer spiral shell Line 2-1, the seal washer 3 is socketed on the external screw thread 2-1 of water inlet end connecting tube 2 to be abutted against with faucet body 1, with existing skill Unlike art, it is two sections of A, B that the external screw thread 2-1, which be divided to, wherein A section one sections for close faucet body 1, and B sections are separate One section of faucet body 1, B sections of screw thread 2-1-2 screw pitch are adapted with the internal screw thread screw pitch of the water pipe head of mating, A sections Its screw pitch of screw thread 2-1-1 is slightly less than B sections of screw thread 2-1-2 screw pitch.

Preferably, A sections of screw thread 2-1-1 length is 5-10mm, this example 8mm.

Further, the 90%-97% for the screw thread 2-1-2 screw pitch that A sections of screw thread 2-1-1 screw pitch is B sections, the spiral shell that A sections of this example The 95% of the screw thread 2-1-2 screw pitch that line 2-1-1 screw pitch is B sections, such as common tap M24 external screw thread, screw pitch 3.00mm, then From A, B sections of junctions to faucet body 1, A sections of screw thread 2-1-1 screw pitch becomes 2.85mm from 3.00mm.

Further, from A, B sections of junctions to the direction of faucet body 1, A sections of screw thread 2-1-1 screw pitch is gradually reduced For the 90%-97% of B sections of screw thread 2-1-2 screw pitch, in this example, from A, B sections of junctions to the direction of faucet body 1, A sections of spiral shell Line 2-1-1 screw pitch is from the 95% of the thread pitch for gradually decreasing to only B sections identical as B section, such as the outer spiral shell of common tap M24 Line, screw pitch 3.00mm, then from A, B sections of junctions to faucet body 1, A sections of screw thread 2-1-1 screw pitch gradually subtracts from 3.00mm It is small to arrive 2.85mm.

As shown in Fig. 2 Fig. 3, the water inlet end connecting tube external screw thread of existing tap is equidistant screw pitch, can normally be adapted to Water pipe head 4 be spirally connected, screw in the internal screw thread of water pipe, tap water inlet end connecting tube external screw thread 2-1 of the invention, due to A sections B sections of ratio of screw thread 2-1-1 screw pitch of constant worm pich screw pitch it is smaller, so when being spirally connected with water pipe head 4, B sections of screw thread before this 2-1-2 screws in water pipe, after reaching A sections of screw thread 2-1-1, since A sections of thread pitch are slightly less than B sections of thread pitch, then and A sections Screw thread 2-1-1 side and water pipe head 4 equidistant internal screw thread the other side generate pressure, continue to screw in, similarly at B sections Screw thread 2-1-2 side and the equidistant internal screw thread of water pipe head 4 the other side generate pressure, A section screw thread 2-1-1 generation pressure The pressure direction of power direction and B section of screw thread 2-1-2 generation on the contrary, namely 4 internal screw thread of water pipe head to tap external screw thread The normal constant worm pich of the B section of 2-1 and A sections of fine thread parts generate reversal interlocking relay, so that bidirectional locking effect is produced, existing water Faucet and water pipe head generally use engineering plastics, certain deformation can be generated at internal and external threads cooperation, to make bidirectional locking Better effect in addition designs the suitable length of A sections of fine threads, make to be threadedly engaged compressed just after bidirectional locking it is a degree of Seal washer 3, such triple seal solve the problems, such as gas leakage leakage, also solve rubber gasket aging bring screw thread and match Close absent-mindedness problem.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims

1. An ergonomically improved faucet with air-tight and liquid-tight threads, comprising a sealing gasket, a faucet body, and a water inlet end connecting pipe integrated with the faucet body, and the water inlet end connecting pipe is provided with a There is an external thread, and the sealing washer is sleeved on the external thread of the connection pipe at the inlet end and abuts against the faucet body. Section B is the section away from the body of the faucet. The thread pitch of section B is adapted to the pitch of the internal thread of the matching water pipe joint, and the pitch of the thread of section A is slightly smaller than that of section B.

2 . The ergonomically improved faucet with air-tight and liquid-tight threads according to claim 1 , wherein the length of section A is 5-10 mm. 3 .

3. The faucet with air-tight and liquid-tight threads based on ergonomic improvement according to claim 1, wherein the thread pitch of the A section is 90%-97% of the thread pitch of the B section.

4. The faucet with air-tight and liquid-tight threads based on ergonomic improvement according to claim 1 is characterized in that, from the connection of sections A and B to the direction of the faucet body, the thread pitch of section A gradually increases. Reduce it to 90%-97% of the thread pitch of the B segment.