A kind of magnetic lockable valve
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of magnetic lockable valve.
Background technique
Valve rod and lock nut are all to be fixedly connected with by shop bolt, and valve rod is with bonnet in existing magnetic locking valve
Axially position, lock nut is also equivalent to by forming axial restraint between shop bolt and bonnet, then in order to make positioning pin
Valve rod and lock nut can be fixedly connected with by nail, just need to carry out the positioning of positioning pin in the outer side perforating of lock nut in processing, from
Outside carries out punching and is easy to make to leave wound on lock nut, and entire valve is also direct exposure in whole lock nut after the assembly is completed
Outside, it is so just easy to that other people is enable to carry out malicious sabotage to valve from punching place of lock nut, so as to cause valve
Door failure.
For this purpose, the applicant is it is proposed that excessively a kind of magnetic locking valve [application number:201720043252.1], it includes valve
Body, the bonnet for being connected to valve body upper end and the lock nut being socketed on bonnet are equipped with magnetic lockable mechanism between bonnet and lock nut,
The valve rod for capableing of control valve opening and closing when rotation is equipped in valve body, valve rod upper end is upward through bonnet and protrudes into lock nut, bonnet
It is equipped with circlip between lock nut, cyclic annular card slot one is equipped on the outside of bonnet upper end, is correspondingly provided with cyclic annular card slot two, circlip on the inside of lock nut
Inner margin portion be located in cyclic annular card slot one and the peripheral edge portion of circlip is located in cyclic annular card slot two, valve rod upper end has connection
Portion, lock nut inside have connecting hole identical with interconnecting piece shape, so that valve rod and lock nut is formed week in interconnecting piece insertion connecting hole
To fixation.The magnetic locking valve by circlip and cyclic annular card slot one, the cooperation of cyclic annular card slot two and interconnecting piece on valve rod with
Connecting hole on the inside of lock nut matches the effect to replace shop bolt in traditional magnetic lock valve, is guaranteeing magnetic locking valve just
It solves the problems, such as to need to be punched on the outside of lock nut while being often used function to realize that shop bolt positions, simultaneously because
Circlip is fully located in lock nut, therefore has prevented the possibility that valve is destroyed from outside well.
However, there is also certain shortcomings for the magnetic locking valve:Circlip setting prevents between lock nut and bonnet
The possibility that valve is destroyed from outside, but also cause the lock nut can not to remove after mounting with bonnet, then when being set to lock nut
It will lead to not be replaced because of the non-dismountable of lock nut and bonnet when magnetic lockable failure mechanisms between bonnet.
Summary of the invention
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, to propose a kind of magnetic lockable valve,
The technical problem to be solved is that the replacements and maintenance that guarantee magnetic lockable mechanism while preventing valve and being destroyed from outside.
The purpose of this utility model can be realized by the following technical scheme:
A kind of magnetic lockable valve including valve body, is threadedly connected to the bonnet of valve body upper end and is socketed on bonnet
Lock nut is equipped with magnetic lockable mechanism between the bonnet and lock nut, when being equipped with rotation in the valve body can control valve open
The valve rod closed, the bonnet upper end are equipped with location hole, and the bonnet lower end is equipped with cavity and cavity is connected with location hole, special
Sign is that the lock nut lower end center is equipped with the interconnecting piece of protrusion, and the interconnecting piece passes through in location hole to cavity, and
It is equipped with card slot on the outside of interconnecting piece in cavity, circlip is equipped in the card slot, circlip part extends to outside card slot and extends to
The roof of circlip upper surface and cavity outside card slot leans, and the valve rod upper end and interconnecting piece are circumferentially fixed.
Lock nut lower end center is equipped with the interconnecting piece of protrusion and interconnecting piece is made to pass through the location hole of bonnet upper end to bonnet lower end
Cavity in, card slot then is being set on the outside of the interconnecting piece being located in cavity, being arranged in card slot circlip and stretches circlip part
It outside to card slot and extends to the roof of circlip upper surface and cavity outside card slot and leans, so that lock nut is equally solid by circlip
It is scheduled on bonnet to prevent valve from outside and be destroyed;Simultaneously as the lower thread of bonnet is connected to valve body upper end, then only
Need to screw off bonnet from valve body can remove circlip from the cavity of bonnet lower end, that is, can be by lock nut from valve
Disassembled on cap the magnetic lockable mechanism of failure is replaced or be repaired, and this structure but also circlip assembly
Become simpler.
In above-mentioned magnetic lockable valve, the interconnecting piece is equipped with connecting hole, and the valve rod upper end, which is equipped with, to be cut
The non-circular connector in face, in the described connector insertion connecting hole and the shape of connecting hole and the shape of connector it is identical and
Connector axial limiting is in connecting hole.
The non-circular connector in section is set in valve rod upper end, setting shape connection identical with connector on interconnecting piece
Hole, then only needing in connector insertion connecting hole and making in connector axial limiting connecting hole, so that it may user be made to utilize key
Opening or closing for valve is realized with ovable valve stem synchronous rotation while spoon rotation lock nut.
In above-mentioned magnetic lockable valve, the inner wall of the connecting hole is equipped with positioning step, the connector
Outside be equipped with shoulder block, the upper surface of the shoulder block and the lower end surface of positioning step lean, are arranged on the valve rod
Elastic collar, the upper surface of elastic collar and the lower end surface of shoulder block lean, and the lower end surface of elastic collar is resisted against connecting hole
On inner wall.
Elastic collar is arranged on valve rod, the lower end surface of elastic collar is resisted against on the inner wall of connecting hole, elastic collar
Upper surface and the lower end surface of shoulder block lean the upper surface of shoulder block simultaneously and the lower end surface of positioning step leans, so that valve
The connector of bar is able to be axially fixed in connecting hole.
In above-mentioned magnetic lockable valve, the inner wall of the connecting hole is equipped with locating slot, and locating slot is located at positioning
Below step, the elastic collar lower end surface is resisted against on the downside cell wall of locating slot.
Locating slot is set on the inner wall of connecting hole, by making downside cell wall phase of the lower end surface of elastic collar with locating slot
Against preventing elastic collar from deviating from out of connecting hole, thus guarantee elastic collar upper surface can always with the lower end of shoulder block
Face leans the connector axial limiting of valve rod in connecting hole.
In above-mentioned magnetic lockable valve, the elastic collar is in inverted bowl-shape, and outside the upper end of elastic collar
Diameter is less than the lower end aperture of connecting hole, and the lower end outer diameter of elastic collar is greater than the lower end aperture of connecting hole.
Since elastic collar has elasticity, thus while the lower end outer diameter of elastic collar is greater than the lower end aperture of connecting hole,
But by the deformation of elastic collar itself so that elastic collar is able to be assembled in connecting hole.When elastic collar enters in connecting hole
And when being located at locating slot, locating slot provides the space for resetting deformation for elastic collar, determines so that elastic neck is stuck in
In the slot of position and by the limit of the connector of valve rod in connecting hole.
Compared with prior art, this magnetic lockable valve passes through the location hole of bonnet upper end by the interconnecting piece of lock nut lower end
To the cavity of bonnet lower end, then be located at cavity in interconnecting piece on the outside of card slot is being set, in card slot be arranged circlip with it is recessed
The roof of chamber leans, so that lock nut is equally fixed on bonnet to prevent valve from outside and be destroyed by circlip;Together
When, only bonnet need to be screwed off from valve body and circlip can be removed from the cavity of bonnet lower end, that is, can will locked
Cap is disassembled from bonnet the magnetic lockable mechanism of failure is replaced or be repaired, and this structure is but also circlip
Assembly become simpler.
Detailed description of the invention
Fig. 1 is the cross-sectional view of this magnetic lockable valve.
In figure, 1, valve body;2, bonnet;2a, cavity;3, lock nut;3a, interconnecting piece;3a1, connecting hole;3a2, positioning step;
3a3, locating slot;3b, connection cavity;4, magnetic lockable mechanism;5, sealing ring;6, circlip;7, valve rod;7a, connector;7b, shoulder block;
8, flashboard;9, elastic collar.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, a kind of magnetic lockable valve, including valve body 1, is threadedly connected to the bonnet 2 of 1 upper end of valve body and covers
The lock nut 3 on bonnet 2 is connect, magnetic lockable mechanism 4 is equipped between bonnet 2 and lock nut 3, this magnetic lockable valve further includes an energy
It is enough socketed on lock nut 3 and is unlocked the key for enabling lock nut 3 to rotate relative to bonnet 2 to magnetic lockable mechanism 4.Lock nut
3 upside is equipped with connection cavity 3b, and the bottom of key is equipped with and can be embedded in connection cavity 3b and form circumferentially fixed link block.
2 lower end of bonnet is equipped with cavity 2a, and 2 upper end of bonnet is equipped with location hole, and location hole is connected with cavity 2a.Lock nut 3
Lower end center is equipped with the interconnecting piece 3a of protrusion, and interconnecting piece 3a passes through location hole from cavity 2a, and in interconnecting piece 3a and location hole
Between be equipped with sealing ring 5.It is equipped with card slot on the outside of interconnecting piece 3a in cavity 2a, is equipped with circlip 6,6 part of circlip in card slot
It extends to outside card slot and the roof for extending to 6 upper surface of circlip outside card slot and cavity 2a leans.
Valve rod 7 and flashboard 8 are equipped in valve body 1,7 lower end of valve rod is threadedly coupled with flashboard 8, and bonnet 2 is protruded into 7 upper end of valve rod
It is in the cavity 2a of lower end and circumferentially fixed with interconnecting piece 3a.The lower end of interconnecting piece 3a is equipped with connecting hole 3a1, and 7 upper end of valve rod is equipped with
The non-circular connector 7a in section, the shape of connecting hole 3a1 is identical as connector 7a and connector 7a is located at connecting hole 3a1
It is interior.The inner wall of connecting hole 3a1 is equipped with positioning step 3a2, and the outside of connector 7a is equipped with shoulder block 7b, the upper surface of shoulder block 7b with
The lower end surface of positioning step 3a2 leans, and elastic collar 9 is arranged on valve rod 7, the upper surface of elastic collar 9 is with shoulder block 7b's
Lower end surface leans, and the lower end surface of elastic collar 9 and the inner wall of connecting hole 3a1 lean.
In the present embodiment, elastic collar 9 is in inverted bowl-shape, and the inner wall of connecting hole 3a1 is equipped with locating slot 3a3, fixed
Position slot 3a3 is located at the lower section of positioning step 3a2, and the upper end outer diameter of elastic collar 9 is less than the lower end aperture of connecting hole 3a1,
The lower end outer diameter of elastic collar 9 is greater than the lower end aperture of connecting hole 3a1, and the lower end surface of elastic collar 9 is resisted against locating slot 3a3's
On the cell wall of downside.
When valve rod 7 and lock nut 3 are assembled together, it is obtained through elastic collar 9 by the self-deformation of elastic collar 9
In the lower port of connecting hole 3a1 to connecting hole 3a1.Then when elastic collar 9 enters in connecting hole 3a1 and is located at locating slot 3a3
When place, locating slot 3a3 is that elastic collar 9 provides the space for resetting deformation and elastic collar 9 is made to be able to expand outward again
Position, 9 part of elastic collar after reset is located in locating slot 3a3 and the lower end surface of elastic collar 9 is resisted against under locating slot 3a3
On side channel wall, the upper surface of elastic collar 9 then leans with the lower end surface shoulder block 7b on the outside of connector 7a and by connector 7a axis
To being limited in connecting hole 3a1.
This magnetic lockable valve is by being equipped with the interconnecting piece 3a of protrusion at 3 lower end center of lock nut and interconnecting piece 3a being made to pass through valve
In the location hole of 2 upper end of cap to the cavity 2a of 2 lower end of bonnet, then card is set on the outside of the interconnecting piece 3a being located in cavity 2a
Circlip 6 is arranged in card slot and extends to 6 part of circlip outside card slot and extends to 6 upper surface of circlip outside card slot and cavity 2a for slot
Roof lean so that lock nut 3 is equally fixed on bonnet 2 by circlip 6 and prevents valve and be destroyed from outside.
Simultaneously as the lower thread of bonnet 2 is connected to 1 upper end of valve body, then only need to screw off bonnet 2 from valve body 1
Circlip 6 can be removed from the cavity 2a of 2 lower end of bonnet, that is, lock nut 3 can be disassembled from bonnet 2 with
The magnetic lockable mechanism 4 of failure is replaced or repaired.In addition, such structure make circlip 6 installation and bonnet 2 with
The assembly of lock nut 3 all becomes simpler.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.