CN2218860Y - Self fastening long-life valve - Google Patents

Abstract

The utility model relates to a self fastening long-life valve which is used for conveying liquid in daily life and industry. The self fastening long-life valve is mainly composed of a valve core (2), a valve body (3) and a handle (1). The self fastening long-life valve is characterized in that the valve body (3) is provided with a conical hole (B) and a cylindrical hole (C) inside; the excircle of a truncated cone of the valve core (2) is matched with the conical hole (B) in the valve body (3); the truncated cone of the valve core (2) is provided with two right-angled channels (E) and (F) inside; the top of the small end of the truncated cone is provided with a shaft (G) which extends out of the valve body (3) and is fixedly connected with the handle (1); the big end of the valve body (3) is provided with inner screw threads. The self fastening long-life valve has the advantages of excellent performance, reasonable and simple structure, convenient opening and closing, good tightness, reliable operation, abrasion resistance and long service life, and is an ideal valve.

Description

The long-lived valve of self-tightening

The long-lived valve of model utility self-tightening is people's family lives, and pipeline liquids such as industry, chemical industry are carried the valve of usefulness.It is that a kind of to have an excellent performance, switch convenient, the novel product of reliable operation, good seal performance, not fragile, advantage such as the life-span is long.

The valve that in actual life, uses, on the characteristics of structure and working principle, nothing more than being divided into two big classes: the one, the pressurization spool compresses pipeline opening formation and dams, and as home-use faucet (being water tap), stop valve etc. all belong to this class valve; Another kind is that the pressurization spool dams to pipeline movement in vertical direction or rotational valve core blocking pipe interruption-forming, all belongs to the valve of this class working principle as gate valve, drain cock, teapot water nozzle etc.The shortcoming of these valves is: 1. switch bothers, and need revolve the good multi-turn of screw rod, as faucet.2. sealability is bad, and new valve often leaks after with a period of time.3. fragile, screw rod is easy to wear, and rubber seal is fragile, need often change, and in a lot of places, unit especially in time changes owing to the damage of faucet rubber seal is unmanned and to have formed " perennial draingage ".

At the shortcoming of the said goods, we combine the working principle of existing valve, and are simplified, and have designed by carrying self-pressure liquid self-tightening sealing, switch convenience, reliable operation, the long-lived valve of long, nonabradable self-tightening of life-span.

Structure of the present utility model mainly is made up of spool, valve body, handle.Be characterized in a cone shape hole and a cylindrical hole rectangular with it being arranged at valve inner, circular cone of spool likeness in form, its cylindrical and valve body cone shape hole match, and a right angle channel is arranged in the spool circular cone, the small end top of circular cone has shaft extension to go out outside the valve body, and connects firmly with handle.The big end of valve body has internal thread.

The long-lived valve of the utility model self-tightening has following advantage: 1. rational in infrastructure, simple.2. more then sealing is better for the fluid pressure in the good seal performance, pipeline.3. switch is convenient, only needs the certain angle of handle with sleeve just can finish to dam or releases.4. because of rational in infrastructure, part is not fragile, reliable operation, long service life.

Below in conjunction with accompanying drawing the utility model is elaborated

Fig. 1 is the signal of the utility model sectional arrangement drawing

Fig. 2 is the sectional view signal of spool among Fig. 1 (2)

Fig. 3 is the sectional view signal of valve body among Fig. 1 (3)

The valve body (3) of the long-lived valve of self-tightening is that an inside has cone shape hole (B) to be used to mutually form with a cylindrical hole (C).The spool with matching (2) of in the cone shape hole (B) of valve body (3), packing into, two cylindrical holes (E) of being used to mutually and (F) of meeting at right angles are arranged in spool (2), there is axle (G) to stretch out at spool (2) circular cone small end top, be fixedly connected with handle (1) in the termination of axle (G), in the big end (A) of valve body (3), have screw thread to be connected with intake pipe.Its work is: when need are opened, remove and change hands handle (1), and then rotate in the hole (F) in its spool (2) and the spool (2), make the hole (F) of spool (2) and hole (C) centering on valve body (3) sidewall, form passage, liquid will flow into from entry end under himself pressure, and formation discharges water; If need throttle down, then reverse handle (1) respective angles of changing hands, at this moment the hole (F) of spool (2) also and then back phase inversion answer angle, make hole (F) and the dislocation of the hole (C) on valve body (3) sidewall in the spool (2) and sealed the interior port hole (F) of spool (2), stop flowing of liquid, reached the purpose of damming.If fluid pressure is bigger, then to press to the pressure of spool (2) bigger for liquid, the pressure that spool (2) is pressed on conical bore (B) inwall in the valve body (3) is also bigger, and the internal surface of the conical bore (B) in spool (2) circular cone outer surface and the valve body (3) cooperates tightlier, so seal also better.

Obviously, the valve of this structure is done also to can be used for the valve of line transportation such as industry, chemical industry Draw off valve, urinal flushing valve, the pipeline valve etc. in can be used as people's life.Still in protection domain of the present utility model.

Claims (1)

1. The long-lived valve of self-tightening mainly is made up of valve body, spool, handle, it is characterized in that a cone shape hole (B) and a cylindrical hole (C) are arranged in the valve body (3), cone shape hole (B) in the cylindrical of the circular cone of spool (2) and the valve body (3) matches, right angle channel hole (E), (F) are arranged in the circular cone of spool (2), the small end top of circular cone has axle (G) to stretch out outside the valve body (3), and connect firmly with handle (1), the big end of valve body (3) (A) has been located internal thread.

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