CN209180446U - An improved water tap with airtight and liquid-tight threads based on ergonomics - Google Patents

Abstract

The utility model discloses an improved water tap with air-tight and liquid-tight threads based on ergonomics, which comprises a sealing gasket, a water tap body and a water inlet connecting pipe integrated with the water tap body. The connecting pipe is provided with an external thread, and the sealing gasket is sleeved on the external thread of the connecting pipe at the water inlet end to abut against the faucet body. The difference from the prior art is that the external thread is divided into two sections, A and B, wherein Section A is a section close to the faucet body, and section B is a section away from the faucet body. The thread pitch of section B is compatible with the internal thread pitch of the connected water pipe joint. The thread pitch of section A is slightly smaller than that of section B. . The thread pitch of section A is 90%-95% of the thread pitch of section B. The length of section A is 5‑10mm. From the connection of sections A and B to the direction of the faucet body, the thread pitch of section A gradually decreases to 90%-97% of the thread pitch of section B. This faucet has good air and liquid tightness and long service life.

Description

An improved water tap with airtight and liquid-tight threads based on ergonomics

technical field

The utility model relates to a water tap, in particular to an improved water tap with airtight and liquid-tight threads based on ergonomics.

Background technique

The two tubular parts are connected by threads, because the function of the pipeline is generally to allow gas and liquid to pass through. In order to prevent air leakage and water leakage, that is, to maintain high air tightness and liquid tightness, rubber gaskets are generally placed at the screw connection, and the thread fit is not good. It may be sufficiently air-tight and liquid-tight, otherwise it cannot be connected, because there are tolerances, so only after the two pipes are tightened, the sealing gasket is compressed, and the sealing effect is formed between the sealing gasket and the thread, however as As the aging elasticity of the sealing gasket decreases, the thread fit will loosen, resulting in water leakage and air leakage. Some products even if the sealing gasket is not aged, there are defective products that leak water and air.

Utility model content

The purpose of this utility model is to provide an improved water tap with air-tight and liquid-tight threads based on ergonomics, which is better in air-tight and liquid-tight and has a longer service life.

The technical scheme that realizes the utility model purpose is:

An ergonomically improved faucet with airtight and liquid-tight threads, including a sealing gasket, a faucet body, and a water inlet connecting pipe integrated with the faucet body, the water inlet connecting pipe is provided with an outer Thread, the sealing gasket is sleeved on the external thread of the water inlet connecting pipe and abutted with the faucet body. Different from the prior art, the external thread is divided into two sections A and B, wherein the A section is close to the faucet. A segment of the body, segment B is a segment away from the body of the faucet, the thread pitch of the B segment is compatible with the internal thread pitch of the water pipe joint, and the pitch of the thread of the A segment is slightly smaller than the thread pitch of the B segment.

Preferably, the length of section A is 5-10mm.

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

Further, from the connection of sections A and B to the direction of the faucet body, the thread pitch of section A gradually decreases to 90%-97% of the thread pitch of section B.

The outer thread of the connecting pipe of the water inlet end of the existing faucet is an equidistant pitch, which can be normally screwed with the adapted water pipe joint and screwed into the inner thread of the water pipe. The outer thread of the connecting pipe of the water inlet end of the utility model, because the The pitch of the thread is slightly smaller than the pitch of the equidistant thread of section B, so when it is screwed with the water pipe joint, the thread of section B is screwed into the water pipe first, and after reaching the thread of section A, the thread pitch of section A is slightly smaller than that of section B. , then one side of the A-section thread and the other side of the equidistant internal thread of the water pipe joint generate pressure, continue to screw in, and similarly generate pressure on one side of the B-section external thread and the other side of the equidistant internal thread of the water pipe joint , the direction of pressure generated by thread A is opposite to the direction of pressure generated by thread B, that is, the internal thread of the water pipe produces a reverse pull on the normal equidistant thread of section B and the fine thread of section A of the external thread of the faucet, thus producing a two-way lock. Tightening effect. Existing faucets and water pipe joints are generally made of engineering plastics, which will produce a certain deformation at the joint of the internal and external threads, so that the two-way locking effect is better. In addition, the appropriate length design of the A-section fine thread makes the thread cooperate with two-way locking. Finally, just compress the sealing gasket to a certain degree, so that the triple seal solves the problem of air leakage and liquid leakage, and also solves the problem of loose thread fit caused by the aging of the rubber sealing gasket.

This faucet has good air and liquid tightness and long service life.

Description of drawings

Fig. 1 is the structural schematic diagram of the faucet with air-tight and liquid-tight threads of the utility model embodiment;

Fig. 2 is a schematic diagram of the cooperation between the faucet shown in Fig. 1 and the inner thread of the water pipe joint;

FIG. 3 is an enlarged view of part C in FIG. 2 .

In the figure, 1. Faucet body 2. Water inlet connection pipe 2-1. External thread 2-1-1. Thread of section A 2-1-2. Thread of section B 3. Sealing gasket 4. Water pipe joint.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example:

As shown in Figure 1, a water tap with airtight and liquid-tight threads improved based on ergonomics, including a sealing gasket 3, a water tap body 1, and a water inlet connecting pipe 2 connected with the water tap body 1 as a whole, The water inlet connecting pipe 2 is provided with an external thread 2-1, and the sealing gasket 3 is sleeved on the external thread 2-1 of the water inlet connecting pipe 2 to abut against the faucet body 1, which is different from the prior art. Yes, the external thread 2-1 is divided into two sections A and B, wherein section A is a section close to the faucet body 1, section B is a section far away from the faucet body 1, and the pitch of the thread 2-1-2 of section B is the same as that of the fitting The internal thread pitch of the connected water pipe joint is adapted, and the pitch of the thread 2-1-1 of section A is slightly smaller than the pitch of thread 2-1-2 of section B.

Preferably, the length of the threads 2-1-1 of section A is 5-10 mm, and in this example it is 8 mm.

Further, the thread 2-1-1 pitch of section A is 90%-97% of the thread 2-1-2 pitch of section B, and the thread 2-1-1 pitch of section A in this example is the thread 2-1-2 pitch of section B. 95% of the 1-2 pitch, such as the common faucet M24 external thread, the pitch is 3.00mm, then from the joint of A and B sections to the faucet body 1, the thread 2-1-1 pitch of A section changes from 3.00mm to 2.85 mm.

Further, from the connection of sections A and B to the direction of the faucet body 1, the pitch of the thread 2-1-1 of section A gradually decreases to 90%-97% of the pitch of thread 2-1-2 of section B. In this example In the middle, from the connection of sections A and B to the direction of the faucet body 1, the thread 2-1-1 pitch of section A gradually decreases from the same as that of section B to only 95% of the thread pitch of section B, such as the common faucet M24 For the external thread, the pitch is 3.00mm, then from the joint of sections A and B to the faucet body 1, the thread 2-1-1 pitch of section A gradually decreases from 3.00mm to 2.85mm.

As shown in Fig. 2 and Fig. 3, the external thread of the connecting pipe of the water inlet end of the existing faucet is an equidistant pitch, which can be normally screwed with the adapted water pipe joint 4 and screwed into the internal thread of the water pipe. The outer thread 2-1 of the end connecting pipe, because the pitch of the thread 2-1-1 of section A is slightly smaller than the pitch of the equidistant thread of section B, so when it is screwed with the water pipe joint 4, the thread 2-1-1 of section B is first 2 Screw in the water pipe and reach the thread 2-1-1 of section A. Since the thread pitch of section A is slightly smaller than the thread pitch of section B, the side of thread 2-1-1 of section A is equal to that of water pipe joint 4. Generate pressure on the other side from the internal thread, continue to screw in, and similarly generate pressure on the other side of the thread 2-1-2 of section B and the other side of the internal thread that is equidistant from the water pipe joint 4, and the thread 2-1-2 of section A The direction of pressure generated by 1-1 is opposite to the direction of pressure generated by thread 2-1-2 of section B, that is, the internal thread of water pipe joint 4 is the normal equidistant thread of section B and the fine thread of section A to the external thread of faucet 2-1 Reverse tension is generated, resulting in a two-way locking effect. Existing faucets and water pipe joints are generally made of engineering plastics, which will produce a certain deformation at the joint of the internal and external threads, so that the two-way locking effect is better. Appropriate length design makes the sealing gasket 3 just compressed to a certain degree after the two-way locking of the screw thread, so that the triple seal solves the problem of air leakage and liquid leakage, and also solves the problem of loose thread fit caused by the aging of the rubber sealing gasket.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. a kind of tap with airtight and fluid tight screw thread based on ergonomics improvement, including seal washer, tap Ontology 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 sealing Washer is socketed on the external screw thread of water inlet end connecting tube to be abutted against with faucet body, which is characterized in that the external screw thread is divided into A, B Two sections, wherein A sections is close to one section of faucet body, and B section are one section far from faucet body, B sections of thread pitch and The internal screw thread screw pitch of the water pipe head of mating is adapted, its screw pitch of A sections of screw thread is slightly less than B sections of thread pitch.

2. the tap with airtight and fluid tight screw thread according to claim 1 based on ergonomics improvement, special Sign is that A sections of length is 5-10mm.

3. the tap with airtight and fluid tight screw thread according to claim 1 based on ergonomics improvement, special Sign is that A sections of thread pitch is the 90%-97% of B sections of thread pitch.

4. the tap with airtight and fluid tight screw thread according to claim 1 based on ergonomics improvement, special Sign is that from A, B sections of junctions to the direction of faucet body, A sections of thread pitch is gradually decreased as B sections of thread pitch 90%-97%。