CN115574141A - Locking device of handle transmission ball valve - Google Patents

Abstract

The invention discloses a locking device of a handle transmission ball valve, which comprises an inner sleeve and an outer sleeve sleeved on the periphery of the inner sleeve, wherein the inner sleeve is of a sleeve structure, the upper part of the inner sleeve is transversely provided with a lock tongue groove, the lower part of the outer wall of the inner sleeve is provided with a positioning key bulge, and the positioning key bulge is radially connected with a jacking screw in a penetrating way; the top of the outer sleeve is provided with a blind plate, a rotor lock cylinder is arranged at an eccentric position on the blind plate, a lock tongue piece of the rotor lock cylinder is arranged inwards and can be matched and connected with a lock tongue groove of the inner sleeve, and the bottom of the outer sleeve is provided with a positioning groove matched and arranged with the positioning key protrusion. The technical scheme of the invention can realize the locking function of various handle transmission ball valves on the market, can be flexibly used, can be installed and used when needed, can be detached when not needed, and can be repeatedly used; the anti-damage strength is high, the positioning key is designed in the inner compensation mode, the device can resist the destructive rotation of external force, and after the device is locked, the device cannot be damaged and the locking function cannot be released by using tools such as a wrench or a pipe wrench and the like to rotate forcibly by manpower.

Description

Locking device of handle transmission ball valve

Technical Field

The invention relates to the technical field of ball valve auxiliary components, in particular to a locking device of a handle transmission ball valve.

Background

In the current stage of pipeline operation units for heat supply, water supply and the like, in order to avoid the operation of non-professional personnel, a valve installed in a pipeline has a locking function in operation and maintenance, and a ball valve with a locking protection function in the market usually completes locking control on the ball valve through a key with a special structure or a spanner with a special structure. The defects and shortcomings of the prior art are as follows: (1) In the existing product, because the valve body and the locking protection device are of an integral structure, all parts possibly using the locking function are required to be provided with the locking ball valves when the pipeline is designed, and the utilization rate of the locking function is not 100 percent, so that some cost is idle; (2) To some, the construction is accomplished, and the pipeline installation does not have locking function ball valve, need realize its locking function's pipeline again in the later stage operation in, can only change for again and have locking protect function ball valve, can produce secondary construction cost.

Disclosure of Invention

The invention aims to provide a locking device of a handle transmission ball valve, which is suitable for a handle transmission valve and can realize the locking function of the valve handle operation for the handle transmission valve without the locking function.

The invention is realized by the following technical scheme in order to achieve the purpose:

a locking device of a handle transmission ball valve comprises an inner sleeve and an outer sleeve sleeved on the periphery of the inner sleeve, wherein the inner sleeve is of a sleeve structure, a lock tongue groove is transversely formed in the upper part of the inner sleeve, a positioning key bulge is formed in the lower part of the outer wall of the inner sleeve, and a jacking screw is radially connected with the positioning key bulge in a penetrating mode; the outer sleeve is of a barrel body structure with a blind plate at the top, a rotor lock cylinder is installed at an eccentric position on the blind plate, a lock tongue piece of the rotor lock cylinder is arranged inwards and can be matched and connected with a lock tongue groove of the inner sleeve, and a positioning groove matched and installed with the positioning key protrusion is formed in the bottom of the outer sleeve.

Further, the inner wall of the inner sleeve is matched with the outer wall of the valve actuating rod of the ball valve.

Furthermore, the positioning key bulge axially extends upwards from the bottom of the outer wall of the inner sleeve and is installed in a matched mode with the periphery of the positioning groove.

Furthermore, the jacking screw is a tapered inner hexagonal screw.

Furthermore, the top surface of the jacking screw is flush with the raised outer wall of the positioning key after jacking and mounting.

Further, the axial length of the positioning groove of the outer sleeve covers the position of the jacking screw.

The technical scheme of the invention can realize the locking function of various handle transmission ball valves on the market, can be flexibly used, can be installed and used when needed, can be detached when not needed, and can be repeatedly used.

The locking device has high anti-damage strength, the positioning key is designed in the inner compensation mode, the locking device can resist the destructive rotation of external force, and after the locking device is locked, the locking device cannot be damaged and cannot be unlocked by using tools such as a wrench or a pipe wrench and the like to forcibly rotate by manpower.

Drawings

FIG. 1 is a schematic view of an installation and disassembly structure of the present invention;

FIG. 2 is a schematic top view of the inner sleeve;

fig. 3 is a schematic top view of the jacket.

In the figure, 1-inner sleeve; 11-a lock tongue groove; 12-a locating key projection; 13-tightening the screw; 2-coating the outer sleeve; 21-a blind plate; 22-rotor lock core; 23-a strike plate; 24-positioning groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

In the description of the present invention, it is to be understood that unless otherwise explicitly specified or limited, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is merely for convenience of description and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be construed as limiting the present invention.

The first feature may be "on" or "under" the second feature and may include both the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, the locking device of the handle transmission ball valve of the present invention comprises an inner sleeve 1 and an outer sleeve 2 sleeved on the outer periphery of the inner sleeve 1, wherein the outer sleeve 2 is required to be installed outside the inner sleeve 1 when in use. The inner sleeve 1 is of a sleeve structure and can be in a steel tubular shape, and the upper part of the inner sleeve is transversely provided with a lock tongue groove 11; the lower part of the outer wall of the inner sleeve is provided with a positioning key bulge 12, and the positioning key bulge 12 is arranged in a way that a key block is welded after an opening is formed at the lower end of the outer wall of the inner sleeve 1; the positioning key protrusion 12 is radially connected to a tightening screw 13 in a penetrating manner, preferably, the tightening screw 13 is a conical inner hexagonal screw, and the setting manner is to punch a hole on the positioning key protrusion 12 to form a thread for mounting the conical inner hexagonal screw.

The outer sleeve 2 is of a barrel structure with a blind plate 21 at the top, and can be welded and fixed on the steel pipe body for the blind plate 21. The rotor lock core 22 is installed at the eccentric position on the blind plate 21, the lock tongue piece 23 of the rotor lock core 22 is arranged inwards and can be matched and connected with the lock tongue groove 11 of the inner sleeve 1, namely, the lock tongue piece 23 of the rotor lock core 22 can be embedded into the lock tongue groove 11 of the corresponding inner sleeve 1 in a locking state, and locking is achieved. The bottom of the outer sleeve 2 is provided with a positioning groove 24 which is matched and arranged with the positioning key bulge 12.

Preferably, the inner wall of the inner sleeve 1 is matched with the outer wall of the valve actuating rod of the field ball valve. The locking device has the advantages that the locking device is provided with a plurality of specifications according to the use requirement, the locking function corresponding to ball valves of different brands and different models can be realized, and meanwhile, the lock cylinder can be selected from multiple grades.

Preferably, the positioning key protrusion 12 axially extends upwards from the bottom of the outer wall of the inner sleeve 1 and is fitted with the periphery of the positioning groove 24.

Preferably, the jacking screw 13 is a tapered inner hexagonal screw, and the top surface of the jacking screw 13 is flush with the raised outer wall of the positioning key after the jacking screw 13 is mounted in a jacking manner.

Preferably, the axial length of the positioning groove 24 of the outer sleeve 2 covers the position of the tightening screw 13, and the tightening screw 13 is completely locked to prevent unlocking.

The working process of the invention is as follows: the method comprises the steps of opening or closing a ball valve to a required position, dismounting a ball valve handle on a valve actuating rod, firstly installing an inner sleeve 1 on the periphery of the valve actuating rod, fastening a jacking screw 13 to enable the jacking screw 13 to tightly press a valve transmission rod, then installing an outer sleeve 2 on the outer side of the inner sleeve 1, buckling a positioning key bulge 12 of the inner sleeve 1 with a positioning groove 24 key groove of the outer sleeve 2, finally screwing a rotor lock core 22 key, and locking the inner sleeve 1 with the outer sleeve 2 through a lock tongue piece 23. When the locking device is opened, the key is inserted and rotated until the lock tongue piece 23 is separated from the lock tongue groove 11, then the outer sleeve 2 is pulled out, finally the jacking screw 13 of the inner sleeve 1 is unscrewed, the inner sleeve 1 is pulled out, and the locking function is released.

The embodiments of the present invention are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading the present specification, but the present invention is protected by patent law within the scope of the appended claims.

Claims (6)

1. A locking device of a handle transmission ball valve is characterized by comprising an inner sleeve (1) and an outer sleeve (2) sleeved on the periphery of the inner sleeve, wherein the inner sleeve is of a sleeve structure, a bolt slot (11) is transversely formed in the upper part of the inner sleeve, a positioning key bulge (12) is formed in the lower part of the outer wall of the inner sleeve, and the positioning key bulge is radially connected with a jacking screw (13) in a penetrating manner; the outer sleeve is of a barrel body structure with a blind plate (21) at the top, a rotor lock cylinder (22) is installed at the eccentric position on the blind plate, a lock tongue piece (23) of the rotor lock cylinder is arranged inwards and can be matched and connected with a lock tongue groove of the inner sleeve, and a positioning groove (24) matched and installed with a positioning key bulge is formed in the bottom of the outer sleeve.

2. The locking device of a handle-driven ball valve according to claim 1, wherein the inner wall of the inner sleeve is engaged with the outer wall of the valve actuating rod (3) of the ball valve.

3. The locking device of a handle-driven ball valve as claimed in claim 1, wherein the positioning key protrusion is axially upwardly extended from the bottom of the outer wall of the inner sleeve to be fitted with the outer circumference of the positioning groove.

4. The locking device of a handle driven ball valve as claimed in claim 1, wherein the tightening screw is a tapered hexagonal socket head screw.

5. The locking device of the handle-driven ball valve according to claim 1 or 4, wherein the top surface of the tightening screw is flush with the outer wall of the protrusion of the positioning key after tightening.

6. The locking device for a handle-driven ball valve as claimed in claim 1, wherein the axial length of the positioning groove of the outer sleeve covers the position of the tightening screw.

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