CN2711700Y

CN2711700Y - Water meter

Info

Publication number: CN2711700Y
Application number: CN 200420028186
Authority: CN
Inventors: 孙增国
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-16
Filing date: 2004-06-16
Publication date: 2005-07-20
Anticipated expiration: 2014-06-16

Abstract

The utility model relates to a water meter used to meter the running-water, comprising a case, a cover, an inside drive counting device and a pipe joint. The pipe joint comprises a clamp nut, a coning sealing ring and a telescopic pipe. One end of the telescopic pipe is arranged in the pipeline of the water meter inlet and outlet and is fixed by the clamp nut. The coning sealing ring is arranged between the clamp nut and the telescopic pipe. The utility model has the characteristics of fast and convenient installation and maintenance, considerably enhanced work efficiency and less waste of the material.

Description

Water meter

Technical field

The utility model relates to a kind of water meter that measures tap water, the telescopic water meter of especially a kind of pipe adapter.

Background technology

The tap water water meter of family expenses mostly is screw type water meter at present, its two ends are screw type interfaces, the length of interface is fixed, two joints are connected with rising pipe with water inlet pipe respectively during installation, if it is improper to run into the length of inlet tube and outlet tube during installation, water meter just can't install smoothly, need excessive portion be blocked or with straight coupling water pipe be extended, so just brought some troubles, also can cause certain data waste to installation; Need break during maintenance and partly block because the freezing water pipe that causes breaks winter in addition, the water pipe of adjunction certain-length could be pressed last water meter then smoothly again, and maintenance process is very loaded down with trivial details.

The utility model content

The purpose of this utility model is to provide a kind of water meter of new structure, and having water meter pipe joint can need adjust length according to reality, use to install and maintenance is more quick and peace just, improved the waste that work efficiency also reduces material greatly.

The utility model is by the following technical solutions for achieving the above object:

A kind of water meter of tap water metering usefulness, form by watchcase, table lid, inner driving counting assembly and pipe adapter, described pipe adapter is made up of clamp nut, tapering O-ring seal and draw-tube, one end of draw-tube is placed in the pipeline of water meter import and export, fastened nut is fixed, the other end is exposed to be provided with the tapering O-ring seal outside between clamp nut and draw-tube, draw-tube is retractable under the state that clamp nut unclamps.

The utility model in use, can regulate the exposed length partly of draw-tube according to actual conditions, when the water pipe of outside falls short of, the loosening clamp nut of energy will stretch and be pulled outwardly, exposed length is partly increased, be connected with outer water tube, again clamp nut is tightened fixedly draw-tube afterwards, it is long to work as outer water tube equally, when withstanding the water meter interface, draw-tube can be pushed inward, when reaching suitable position, it is connected with outer water tube again, and then clamp nut is tightened fixedly draw-tube, winter is when freezing, may freeze in water meter and the external pipe, the coupling of at this moment general water meter is easily broken or can make the bad seals of water meter and outside water pipe, and the utility model is owing to be provided with the tapering O-ring seal between draw-tube and clamp nut, can effectively prevent clamp nut break or drainage takes place in the joint.

Description of drawings

Fig. 1 is the cut-open view of the utility model pipe adapter.

Embodiment

As shown in Figure 1, a kind of tap water water meter, by watchcase 1, table cover 2, the driving counting assembly 3 and the pipe adapter 4 of inside form, described pipe adapter 4 is made up of clamp nut 41, tapering O-ring seal 42 and draw-tube 43, one end of draw-tube 43 is placed in the pipeline of water meter import and export 10, and fastened nut 41 is fixing, and the other end is exposed outside, be provided with tapering O-ring seal 42 between clamp nut 41 and draw-tube 43, draw-tube 43 is retractable under the state that clamp nut 41 unclamps.

When using, earlier clamp nut 41 is unclamped the utility model, make draw-tube 43 retractables, length adjustment draw-tube 43 and outer water tube butt joint according to outer water tube are fixing, and then clamp nut 41 tightly returned, adopt the advantage of this water meter to be, needn't be again remove lengthening or block water pipe, simplified the course of work greatly, improve the waste that work efficiency also can reduce resource simultaneously for the length of the improper water meter of outer water tube; In the time of freezing day, even the ice formed for pipe interior, tapering O-ring seal 42 retractilities can guarantee the sealing of junction in addition, make clamp nut avoid damaging.

Claims

1, a kind of water meter of tap water metering usefulness, form by watchcase, table lid, inner driving counting assembly and pipe adapter, it is characterized in that: described pipe adapter is made up of clamp nut, tapering O-ring seal and draw-tube, one end of draw-tube is placed in the pipeline of water meter import and export, and fastened nut is fixed, the other end is exposed outside, is provided with the tapering O-ring seal between clamp nut and draw-tube.