CN201521755U

CN201521755U - Pipeline micro-flow restrictor

Info

Publication number: CN201521755U
Application number: CN2009202429552U
Authority: CN
Inventors: 马晓琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-03
Filing date: 2009-11-03
Publication date: 2010-07-07
Anticipated expiration: 2019-11-03

Abstract

The utility model relates to a pipeline micro-flow restrictor which comprises a pipe body, wherein the pipe body comprises an inlet pipe and a moderate thick pipe that is communicated with the inlet pipe; the pipe body is also internally provided with a micro-flow restriction structure; and the micro-flow restriction structure comprises a sliding shaft, a piston sheathed on the sliding shaft, an elastic structure, a sliding shaft inlet fixing structure, and a sliding shaft outlet fixing structure, wherein the piston is connected with the sliding shaft inlet fixing structure by the elastic structure, the sliding shaft inlet fixing structure is fixed in the inlet pipe, and the sliding shaft outlet fixing structure is fixed in the middle part of the moderate thick pipe. The pipeline micro-flow restrictor has the function of preventing the seepage waste of a pipeline valve; and specifically, when the pipeline valve is not screwed down or leaked due to ageing, the restrictor can prevent the micro-flow in the pipeline, thus preventing the drop-leakage of the pipeline valve.

Description

A kind of pipeline micrometeor limiter

Technical field

The utility model relates to a kind of limiter, especially a kind of pipeline micrometeor limiter that can prevent wastes such as pipeline valve drips, seepage.

Background technique

Common pipeline has household tap water pipeline, family expenses natural gas pipe, petroleum transportation pipeline etc., and switch valve is all disposed in control on these pipelines for convenience, also is furnished with gauge table on the pipeline that has.Make discovery from observation phenomenons such as dripping appears in the switch valve regular meeting that is disposed on the pipeline, seepage.Annual because the loss that this problem of pipeline valve is caused is very huge, drip, seepage not only wastes resource, and sometimes also pollute the environment, very harmful.Take the household tap water pipe to illustrate below.

At present, except disposing requisite water tap, also is furnished with water meter on family's running water pipe commonly used.And the common structure of water meter is made of a watchcase and watch core, current enter watch core from watchcase one end, drive propeller runner and rotate, and current flow away from the watch core the other end again, the propeller runner that rotates drives the note amount device metering of watch core top, and water flow what can write down under the pointer that rotates; Propeller runner at the small situation following table in-core of water-outlet quantity does not rotate, if water tap drip, just record is less than water flow under the situation of seepage, water supply plant causes damage.

The model utility content

The purpose of this utility model just is the deficiency at prior art, and a kind of pipeline micrometeor limiter is provided, and it has pipeline micrometeor restrictor function, can prevent the waste of pipeline valve seepage.Specifically, do not tighten or during aging seepage to some extent, this limiter can stop the miniflow in the pipeline, and then stops the pipeline valve water clock when pipeline valve.

Realize that the technological scheme that the utility model purpose is adopted is: a kind of pipeline micrometeor limiter, it comprises a body.

It is characterized in that:

1, the described body middle extra heavy pipe that comprises inlet duct and be communicated with inlet duct, body inside also is provided with a miniflow limiting structure; Described miniflow limiting structure comprises sliding axle, is placed in the piston of sliding axle, elastic structure, sliding axle inlet fixed structure, sliding axle outlet fixed structure, piston is connected by elastic structure with sliding axle inlet fixed structure, sliding axle inlet fixed structure is fixed in the inlet duct, extra heavy pipe middle part during sliding axle outlet fixed structure is fixed on, sliding axle inlet fixed structure, sliding axle outlet fixed structure profile are circular, and the center portion all is provided with axis hole;

2, described elastic structure is a spring;

The utlity model has following beneficial effect:

1, has pipeline micrometeor restrictor function, can prevent the waste of pipeline valve seepage.

2, design is unique, novel, applied range, and it not only can be installed on the running water pipe, but also can be installed on natural gas pipe, the oil feed pipe.

3, simple and practical, cost is low, make easily.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

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

Fig. 2 is a middle extra heavy pipe structural representation of the present utility model.

Fig. 3 is the structural representation of the utility model sliding axle inlet fixed structure.

Fig. 4 is the structural representation of the utility model sliding axle outlet fixed structure.

Among the figure, 1. inlet duct, 2. in extra heavy pipe, 3. piston, 4. sliding axle, 5. elastic structure, 6. sliding axle inlet fixed structure, 7. sliding axle outlet fixed structure, 8. axis hole, 9. axis hole.

Embodiment

By Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be known, a kind of pipeline micrometeor limiter, it comprises a body; The middle extra heavy pipe (2) that body comprises inlet duct (1) and is communicated with inlet duct, body inside also is provided with a miniflow limiting structure; The miniflow limiting structure comprises sliding axle (4), is placed in the piston (3) of sliding axle, elastic structure (5), sliding axle inlet fixed structure (6), sliding axle outlet fixed structure (7), piston (3) is connected by elastic structure (5) with sliding axle inlet fixed structure (6), sliding axle inlet fixed structure (6) is fixed in the inlet duct (1), sliding axle outlet fixed structure (7) is fixed on middle extra heavy pipe (2) middle part, middle extra heavy pipe (2) middle part internal diameter is greater than the bore of front and rear part, and the internal diameter of inlet duct (1) is identical with the anterior bore of middle extra heavy pipe (2).

Sliding axle inlet fixed structure (6) profile is circular, and the center portion is provided with axis hole (8); Sliding axle outlet fixed structure (7) profile also is circular, and the center portion is provided with axis hole (9).

Described elastic structure (5) is a spring, perhaps adopts other elastic article or elastic structure.

Piston (3) can be gone up from trip at sliding axle (4) and slide, when the valve on the pipeline is tightened, and piston (3) both sides pressure unanimity, displacement does not to the right take place in piston (3); When the valve water clock on the pipeline, piston (3) right side pressure is less than left side pressure, and piston (3) overcomes spring tension and moves right slightly and reach equilibrium of forces, and this moment, limiter can stop miniflow, and limiter is still obstructed; If the valve on the opening conduits, piston (3) left and right sides pressure difference is excessive, and piston (3) will be subjected to thrust to the right, moves to right rapidly at the effect lower piston (3) of thrust, may be to moving on to maximum inner diameter place, middle extra heavy pipe (2) middle part, and the valve on the pipeline then can normal transmission.

Basic principle of the present utility model and major character and advantage have more than been described.The technician of the industry can understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all will fall in claimed the utility model scope.

Claims

1. pipeline micrometeor limiter, it comprises a body, it is characterized in that: the middle extra heavy pipe that described body comprises inlet duct and is communicated with inlet duct, body inside also are provided with a miniflow limiting structure; Described miniflow limiting structure comprises sliding axle, is placed in the piston of sliding axle, elastic structure, sliding axle inlet fixed structure, sliding axle outlet fixed structure, piston is connected by elastic structure with sliding axle inlet fixed structure, sliding axle inlet fixed structure is fixed in the inlet duct, extra heavy pipe middle part during sliding axle outlet fixed structure is fixed on, sliding axle inlet fixed structure, sliding axle outlet fixed structure profile are circular, and the center portion all is provided with axis hole.

2. a kind of pipeline micrometeor limiter according to claim 1, it is characterized in that: described elastic structure is a spring.