CN216201311U

CN216201311U - Threaded connection pipe and valve with same

Info

Publication number: CN216201311U
Application number: CN202122036439.8U
Authority: CN
Inventors: 黄振泰
Original assignee: Fujian Quanjiamei Kitchen And Bathroom Technology Co ltd
Current assignee: Fujian Quanjiamei Kitchen And Bathroom Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-04-05
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a threaded connecting pipe capable of ensuring the sealing performance of pipeline installation and improving the pipe fitting installation efficiency and a valve with the threaded connecting pipe, which comprises a pipe body, wherein the input end of the pipe body is provided with an external thread for connecting with other pipe fittings, and the output end of the pipe body is provided with a valve for opening and closing liquid, and is characterized in that: the modified polytetrafluoroethylene thin sleeve is sleeved on the external thread of the pipe body and is connected with the external thread of the pipe body in an interference fit manner.

Description

Threaded connection pipe and valve with same

Technical Field

The utility model relates to the technical field of hardware articles for daily use, in particular to a threaded connecting pipe and a valve with the same.

Background

The water valve is a common valve for controlling the distribution or flow of fluid, and is installed at one end of a water pipe, and is mainly used for controlling whether water is discharged or not and the amount of the discharged water. At present, most of water pipes on the market are arranged in a wall body in advance, a threaded connector is arranged at the end part of the pipeline in advance, the following two modes are usually adopted when a water valve and the pipeline are installed, 1) the water valve is screwed and installed at one end of the water pipe in a threaded connection mode, the threaded connector of the pipeline and the respective internal thread and external thread of a water faucet are used for screwing, and then white paint hemp threads or raw material strips are used as sealing fillers (namely raw material strips) for sealing. 2) And the water valve head is connected with the water pipe by adopting a pipe joint. The traditional water valve and water pipe installation has the following defects:

1. the way of winding the raw material belt is too complicated, and the number of winding layers is uncertain, so that the water valve (faucet) cannot be in threaded fit connection with a tap water pipe due to too many winding layers; if the leakage is too small, the sealing effect cannot be achieved, so that multiple tests are needed to determine whether water seepage occurs, the working efficiency is low, and the installation effect is unstable.

2. Moreover, the sealing strip belongs to a disposable article, and a new sealing strip needs to be replaced when the water faucet is installed every time, so that material resources and financial resources are wasted.

3. In order to ensure the tightness of the pipeline installation and sealing, a sealing ring or a sealing gasket is usually required to be directly placed at the threaded connection end part of the water pipe and screwed, and the water outlet direction of the water faucet is required to be downward.

4. When the water faucet and the water pipe are connected together by adopting the pipeline joint, the pipeline joint is usually arranged outside the water faucet and the water pipe, so that the joint is protruded, and the appearance is influenced; when the existing pipeline joint is adopted for installation, the raw material belt still needs to be used as sealing filler for sealing, and the working efficiency is still low.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides a threaded connection pipe and a valve having the same.

The technical problem to be solved by the utility model can be realized by the following technical scheme.

The threaded connection pipe comprises a pipe body and an external thread arranged on the pipe body and used for being connected with other pipe fittings, wherein a modified polytetrafluoroethylene thin sleeve is sleeved on the external thread of the pipe body and is connected with the external thread of the pipe body in an interference fit manner.

In a further improvement, the modified polytetrafluoroethylene thin sleeve is an elastic polytetrafluoroethylene thin sleeve.

The further improvement is that the modified polytetrafluoroethylene thin sleeve is a taper sleeve, and the cross section of the modified polytetrafluoroethylene thin sleeve is gradually increased from the water inlet direction to the water outlet direction of the pipe body.

The improved polytetrafluoroethylene pipe is characterized in that the thin end of the modified polytetrafluoroethylene thin sleeve is in the water inlet direction, the thickness of the thin end is 0.01-0.65CM, the thick end of the modified polytetrafluoroethylene thin sleeve is in the water outlet direction, the thickness of the thick end is 0.02-1CM, and the cross section of the modified polytetrafluoroethylene thin sleeve is gradually increased from the water inlet direction to the water outlet direction of the pipe body.

The improved polytetrafluoroethylene pipe is characterized in that the thin end of the modified polytetrafluoroethylene thin sleeve is in the water inlet direction, the thickness of the thin end is 0.15-0.3CM, the thick end of the modified polytetrafluoroethylene thin sleeve is in the water outlet direction, the thickness of the thick end is 0.17-0.45CM, and the cross section of the modified polytetrafluoroethylene thin sleeve is gradually increased from the water inlet direction to the water outlet direction of the pipe body.

Based on the same invention concept, the utility model also provides a valve with the threaded connecting pipe, which comprises a pipe body, wherein the input end of the pipe body is provided with external threads for being connected with other pipe fittings, the output end of the pipe body is provided with a valve for opening and closing liquid, the external threads of the pipe body are sleeved with a modified polytetrafluoroethylene thin sleeve, and the modified polytetrafluoroethylene thin sleeve is in interference fit connection with the external threads of the pipe body.

The utility model has the advantages that:

1) the modified polytetrafluoroethylene thin sleeve is sleeved on the external thread of the pipe body, has good compatibility with the external thread of the pipe body, can be well attached to the outer surface of the external thread and properly deforms along with the precession movement of the thread, namely, the connection of the thread and other pipe fittings cannot be influenced, and the sealing connection of the pipe body and other pipe fittings can be well realized. The problem that a water valve (a water faucet) cannot be in threaded fit connection with a tap water pipe due to the fact that the number of layers of the raw material belts wound in the prior art is too large is avoided; if the sealing effect is too little, the defect of water seepage caused by the fact that the sealing effect cannot be achieved is overcome, the working efficiency is improved, and the installation stability is good.

2) The pipe fitting can be repeatedly used during disassembly and assembly, the raw material belt does not need to be wound repeatedly during installation every time, the complex process of winding the raw material belt is omitted, and material resources and financial resources are saved.

3) The tightness of pipeline installation and sealing is guaranteed, a sealing ring or a sealing gasket does not need to be placed at the end part of the threaded connection of the water pipe and screwed, the material cost is reduced, meanwhile, the water outlet direction of the valve at the other end of the pipe fitting can be guaranteed to be downward at any time, the defects that the correctness of the water outlet direction cannot be guaranteed in the design of the prior art and the construction difficulty is high are overcome.

4) The modified polytetrafluoroethylene thin sleeve has elasticity, can be suitable for pipe bodies with different pipe diameters, has strong universality and further improves the installation efficiency.

5) The modified polytetrafluoroethylene thin sleeve is a taper sleeve, can realize tension connection when being connected with other pipe fittings, and further improves the sealing performance when being connected with other pipe fittings.

Description of the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The utility model will now be further illustrated with reference to specific examples.

Example (b):

as shown in fig. 1, the embodiment of the utility model provides a valve with threaded connection pipe, including body 1, the input of body 1 is equipped with the external screw thread 11 that is used for being connected with other pipe fittings, the output of body is equipped with the valve 2 that is used for opening and close liquid, the cover is equipped with the thin cover 3 of elasticity modified polytetrafluoroethylene on the external screw thread of body, the thin cover 3 of modified polytetrafluoroethylene is connected with the external screw thread interference fit of body 1.

In order to realize the tension type sealing connection when the modified polytetrafluoroethylene thin sleeve 3 is connected with other pipe fittings, the modified polytetrafluoroethylene thin sleeve 3 is a taper sleeve, and the cross section of the taper sleeve is gradually increased from the water inlet direction to the water outlet direction of the pipe body. The structure further improves the sealing performance when the pipe fitting is connected with other pipe fittings.

The thin end of the thin modified polytetrafluoroethylene sleeve is in the water inlet direction, the thickness of the thin end of the embodiment is 0.15, the thick end of the thin modified polytetrafluoroethylene sleeve is in the water outlet direction, the thickness of the thick end of the embodiment is 0.3CM, and the cross section of the thick end is gradually increased from the water inlet direction to the water outlet direction of the pipe body.

When the threaded end of the valve pipe body is required to be connected with other pipe fittings in a sealing manner, the elastic modified polytetrafluoroethylene thin sleeve can be directly arranged on other pipe fittings in a sealing and rotating manner only by sleeving the external thread of the pipe body with the elastic modified polytetrafluoroethylene thin sleeve, the modified polytetrafluoroethylene thin sleeve is good in wrapping capacity with the external thread of the pipe body, can be well attached to the outer surface of the external thread and can be properly deformed along with the precession movement of the thread, the connection between the thread and other pipe fittings cannot be influenced, and the sealing connection between the pipe body and other pipe fittings can be well realized. The problem that a water valve (a water faucet) cannot be in threaded fit connection with a tap water pipe due to the fact that the number of layers of the raw material belts wound in the prior art is too large is avoided; if the sealing effect is too little, the defect of water seepage caused by the fact that the sealing effect cannot be achieved is overcome, the working efficiency is improved, and the installation stability is good. After setting up the thin cover of elasticity modified polytetrafluoroethylene, each section of screw thread body all has sealed effect, can guarantee at any time that the delivery port direction of pipe fitting other end valve is downward, avoids heatstroke and avoids prior art design and can't guarantee the exactness of its delivery port direction, the great defect of the construction degree of difficulty, in addition, the thin cover of modified polytetrafluoroethylene has elasticity can be applicable to the body of different pipe diameters, and the commonality is strong, has further improved the installation effectiveness.

Based on the same inventive concept, the cross section of the modified polytetrafluoroethylene thin sleeve is gradually increased from the water inlet direction to the water outlet direction of the pipe body. The thickness of the thin end is only 0.01-0.65CM, and the thickness of the thick end is only 0.02-1CM, which can achieve the purpose of the utility model. The optimal thin end is 0.15-0.3CM thick, and the optimal thick end is 0.17-0.45CM thick.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. Threaded connection pipe, including the body, locate the external screw thread that is used for being connected with other pipe fittings on the body, its characterized in that: the modified polytetrafluoroethylene thin sleeve is sleeved on the external thread of the pipe body and is connected with the external thread of the pipe body in an interference fit manner.

2. A threaded connection according to claim 1, characterized in that said modified polytetrafluoroethylene sheath is an elastic polytetrafluoroethylene sheath.

3. A threaded connection according to claim 1 or 2, characterized in that said modified teflon thin sleeve is a tapered sleeve whose cross section increases from the water inlet direction to the water outlet direction of the tubular body.

4. A threadable connection pipe according to claim 3, wherein said thin end of said thin sleeve is in the water inlet direction, the thickness of said thin end is 0.01-0.65CM, the thick end of said thin sleeve is in the water outlet direction, the thickness of said thick end is 0.02-1CM, and the cross-section of said thick end increases from the water inlet direction to the water outlet direction of said pipe body.

5. A threaded connection according to claim 4, wherein the thin end of the thin modified PTFE sleeve is in the water inlet direction and has a thickness of 0.15 to 0.3CM, the thick end of the thin modified PTFE sleeve is in the water outlet direction and has a thickness of 0.17 to 0.45CM, and the cross section of the thin modified PTFE sleeve increases from the water inlet direction to the water outlet direction of the tubular body.

6. The utility model provides a valve with threaded connection pipe, includes the body, the input of body is equipped with the external screw thread that is used for being connected with other pipe fittings, the output of body is equipped with the valve that is used for opening and close liquid, its characterized in that: the modified polytetrafluoroethylene thin sleeve is sleeved on the external thread of the pipe body and is connected with the external thread of the pipe body in an interference fit manner.

7. A valve with a threaded connection according to claim 6, characterized in that said modified PTFE envelope is an elastomeric PTFE envelope.

8. A valve with a threaded connection pipe according to claim 6 or 7, characterized in that the said modified PTFE thin sleeve is a taper sleeve, the cross section of which gradually increases from the water inlet direction to the water outlet direction of the pipe body.

9. The valve with the threaded connection pipe as recited in claim 7, wherein the thin end of the modified polytetrafluoroethylene thin sleeve is in the water inlet direction, the thickness of the thin end is 0.01-0.65CM, the thick end of the modified polytetrafluoroethylene thin sleeve is in the water outlet direction, the thickness of the thick end is 0.02-1CM, and the cross section of the modified polytetrafluoroethylene thin sleeve gradually increases from the water inlet direction to the water outlet direction of the pipe body.

10. The valve with threaded connection pipe as claimed in claim 9, wherein the thin end of the modified teflon thin sleeve is in the water inlet direction, the thickness of the thin end is 0.15-0.3CM, the thick end of the modified teflon thin sleeve is in the water outlet direction, the thickness of the thick end is 0.17-0.45CM, and the cross section of the modified teflon thin sleeve gradually increases from the water inlet direction to the water outlet direction of the pipe body.