CN2517702Y - Locking valve with lock nut - Google Patents

Abstract

The utility model discloses a locking valve with a locking cap. A lock cylinder body is arranged at the upper end of a valve body and on a valve rod, an elastic clip formed by a spring and a pin is arranged on the lock cylinder body along the radial direction, a lock cap is arranged at the outer part of the lock cylinder body in a matching way, and an inner ring groove is arranged through the inner wall of the lock cap along the radial direction to be matched with the pin to lock. The utility model can effectively prevent the valve from being freely adjusted, and effectively control the valve always in a started or closed situation. The utility model is applied to the ball valve, the cut off valve or the gate valve, etc.

Description

A kind of lock valve that closes cap with lock

Technical field:

The utility model relates to the valve in a kind of liquid or the gas transfer pipeline system, relates to a kind of lock valve that has the locking cap specifically.

Background technology:

At present, many in the disclosed valve class based on structures such as ball valve, shutoff valve or gate valves, make it utilize the spool that is provided with in the valve body, the unlatching by the hand gear control valve installed on the valve rod that has on it or close.But the valve body of this version, because valve rod that control opens and closes and handwheel are exposed body, be particularly related to and be installed in the liquid or gas transfer pipeline that strictly to control, easily cause valve by artificial adjusting, cause the unlatching opposite or close, bring unnecessary influence or have an accident for ordinary production or normal the use with former running condition.Therefore say, be installed in that valve control forms in the special pipeline system should further be improved and perfect.

Summary of the invention:

The purpose of this utility model is for solving the problem in the above-mentioned technology; and provide a kind of lock valve that closes cap with lock; by adjust valve be in open or closed condition after, make its sealing valve stem part, can effectively control and protect valve not by artificial regulating and controlling.

For achieving the above object, this later-model technical scheme is finished like this: a kind of lock valve that closes cap with lock, comprise valve body and valve rod, wherein it is by on valve body upper end and the valve rod lock core body being installed, along being respectively equipped with the elasticity card that spring and pin are formed in the radial hole of lock core body, outside cooperation by lock core body is equipped with lock nut, radially has inner groove by the lock nut inwall and cooperates chucking to constitute with pin.

Described lock nut outer wall radially has the outer groove that is used to reduce wall thickness with the corresponding position of inner groove.

On the described outer shroud cell wall, can have the cut ditch that is used to reduce wall thickness.

The lock valve of this structure and existing ball valve, functions of use such as shutoff valve or gate valve all are identical, and different distinctive points is the device that has increased the locking cap on valve body.Utilize the pin that is provided with on the valve core to snap in the inner groove of lock nut inwall, make valve be in a kind of self-locking state of opening or closing all the time, avoided artificial arbitrarily by-pass valve control.And when changing the running condition of valve, need thin-wall annular groove place to lock nut to destroy after, just can expose valve rod adjustment, the lock nut that more renews after adjusting.

The lock valve of this structure is applicable under the particular surroundings and do not need in the frequent liquid of adjusting or gas transfer pipeline system, effectively controls and protects valve arbitrarily to adjust, and keep normal running condition.

Description of drawings:

Fig. 1 is the lock valve topology view that closes cap with lock.

Fig. 2,3 is another embodiment view of lock nut.

The specific embodiment:

By the lock valve that closes cap a kind of with lock shown in Figure 1, the valve body that it adopts can be the structure of ball valve, shutoff valve or gate valve, and the lock core body 7 that has mesopore by installation one on valve body 1 upper end and the valve rod 3, be threaded fixing by lock core body 7 with valve body 1, make valve rod 3 pass the mesopore of lock core body 7, by some elasticity cards of being made up of spring 4 and pin 5 are set respectively in the radial aperture of lock core body 7, outside cooperation by lock core body 7 is equipped with lock nut 2, radially have inner groove 6 by lock nut 2 inwalls, cooperate chucking to constitute with the pin 5 that snaps in.

Fig. 2 has provided another structure of locking cap among Fig. 1, and it radially has the outer groove 8 that is used to reduce the annular groove wall thickness in the corresponding position by the inner groove 6 that locking cap 2 inwalls directly make progress equally with outer wall.Cell wall thickness between the inside and outside annular groove on this locking cap 2 should be easy to destroy, so that transposing.

The locking cap that Fig. 3 provides, it is on the basis of the inside and outside annular groove that has of the locking hatband at Fig. 2, be provided with the cut ditch 9 that is used to reduce wall thickness on the cell wall by wherein outer groove 8, the upper and lower side that its lock nut 2 is formed by the inner and outer rings groove is by the easier destruction in cut ditch 9 places.

Above-mentioned lock nut 2 is installed and used explanation with valve body 1: when Locking valve, the end that lock nut 2 is depressed to pin 5 along pin 5 is entrapped in the inner groove 6 of lock nut 2 and has formed self-locking, and valve was in and opened or closed condition this moment, can not arbitrarily adjust; When needs were adjusted valve, at first application tool was distinguished the top and the bottom of clamping lock nut 2, and the inside and outside annular groove place of lock nut 2 destroys can slough lock nut 2.After adjusting valve rod 3 definite mode of operations, more renew lock nut 2, as stated above lock nut 2 is installed on the lock core body 7.

Above-mentioned technical scheme content only is this later-model instantiation, and those skilled in the art person can make corresponding variation by the content scheme of above-mentioned design.As saving lock core body 7, directly utilize the body of valve body 1 upper part, in the hole that radially has by above-mentioned mode, the same elasticity card of forming by spring 4 and pin 5 that is provided with, cooperate with lock nut 2 installations that have inner groove 6, all can realize above-mentioned result of use.

Claims (3)

1, a kind of lock valve that closes cap with lock, comprise valve body and control valve rod, it is characterized in that, it is gone up by valve body (1) upper end and valve rod (3) lock core body (7) is installed, along being respectively equipped with the elasticity card that spring (4) and pin (5) are formed in the radial hole of lock core body (7), outside cooperation by lock core body (7) is equipped with lock nut (2), radially has inner groove (6) by lock nut (2) inwall and cooperates chucking to constitute with pin (5).

By the described a kind of lock valve that closes cap with lock of claim 1, it is characterized in that 2, described lock nut (2) outer wall radially has the outer groove (8) that is used to reduce wall thickness with the corresponding position of inner groove (6).

3, by the described a kind of lock valve that closes cap with lock of claim 2, it is characterized in that, on described lock nut (2) outer groove (8) wall, can have the cut ditch (9) that is used to reduce wall thickness.

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