CN202371200U

CN202371200U - Magnetic control locking ball valve

Info

Publication number: CN202371200U
Application number: CN 201120444244
Authority: CN
Inventors: 祝文耀
Original assignee: JIEKELONG VALVE CO Ltd NINGBO; Ningbo Jintian Copper Group Co Ltd
Current assignee: Ningbo Jiekelong Precision Manufacturing Co Ltd
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-08-08
Anticipated expiration: 2021-11-11

Abstract

The utility model relates to a magnetic control locking ball valve. The valve comprises a valve body, a ball core arranged in the valve body, a valve rod fixedly connected with the upper part of the ball core, a rotating handle of which the middle is connected with the upper end of the valve rod, and a magnetic key component movably connected with the rotating handle, wherein magnetic pins and concave holes for accommodating the magnetic pins are arranged in a convex column at the upper end of the valve body; an arc groove is formed on the convex column at the upper end of the valve body; a positioning pin vertically contacted with the arc groove is arranged in the lower end face of the rotating handle; after a rotating grip of the magnetic key component is jointed with lugs on the two sides of the rotating handle and rotates, the like poles of the strong magnetic pins in the magnetic key component and magnetic tumblers in the convex column at the upper end of the valve body correspond to each other; when the positioning pin is sleeved in an upper positioning hole at the upper end of the arc groove, the strong magnetic pins vertically correspond to the magnetic tumblers, the like poles repel each other, and the magnetic tumblers are sunk, so that the magnetic pins are prevented from being worn in the moving process; and under the emergency condition, the ball valve can be closed as long as the rotating handle rotates anticlockwise to drive the positioning pin to move to a lower positioning hole at the lower end of the arc groove, so that safety is ensured.

Description

A kind of magnetic control locking ball valve

Technical field

The utility model relates to a kind of ball valve, relates in particular to the antitheft ball valve of the magnetic control locking in the combustion gas field.

Background technique

Ball valve is widely used in the civil area, as controlling component main in residential building water supply, heating, the gas supply pipe system.In order to prevent certain user's malicious owing fee; Generally need adorn an antitheft ball valve at gas pipeline house lead in end; When malicious owing fee takes place when, can stop air feed, water supply by throttle down, the user generally can not open voluntarily; Needing to use special key, is that ZL200910102385.1 discloses a kind of antitheft ball valve that is difficult at will opening, playing tamper-proof effect like the patent No..But above-mentioned magnetic lock ball valve must use special key just can close, and when urgency such as gas leakage takes place as the user, if no special-purpose magnetic key maybe be untimely because of valve closing, brings serious accident.Adopt the magnetic pin to use as positioning element, strong magnetic reactance shear ability a little less than, be easy to generate cracked phenomenon, valve can descend working life greatly.In addition, locate as processing, open and close element (strong magnetic pin) jam phenomenon when being prone to assembling, cause the on the low side and influence use of up-to-standard rate with the lug on the valve body.Therefore, the structure of existing antitheft ball valve awaits further to improve.

Summary of the invention

The utility model improves to the existing existing above-mentioned defective of magnetic control ball valve; Design a kind of in case of emergency need not special-purpose magnetic key just can throttle down ball valve; Simultaneously make positioning element without the magnetic pin; Improve valve working life and the magnetic control locking ball valve that product percent of pass is improved.

The technological scheme of the utility model is: magnetic control locking ball valve; Comprise valve body; Be located at the ball core in the valve body, the valve rod that is fixedly connected with ball core top is with the middle rotatory handling that is connected with the valve rod upper end; And the magnetic key assembly that flexibly connects with rotatory handling; It is characterized in that in the protruded stigma of said valve body upper end, establishing magnetic pin and the shrinkage pool of admitting this magnetic pin, on the protruded stigma of said valve body upper end, establish arc groove, in said rotatory handling lower end surface, establish and the vertical locating stud that contacts of said arc groove; The both sides lug of the handler of said magnetic key assembly and said rotatory handling join merge to rotate after, the interior magnetic bullet homopolarity of the strong magnetic pin in the said magnetic key assembly and said valve body upper end protruded stigma is corresponding.

The beneficial effect of above-mentioned design is; After the handler socket of rotatory handling on the ball valve and magnetic key assembly and the rotation; Rotatory handling clockwise rotates the drive locating stud and in curve bath, moves, and it is fashionable that the last positioning hole on locating stud and curve bath is nested, and makes strong magnetic pin corresponding up and down with magnetic bullet; Homopolar-repulsion sinks magnetic bullet; Valve rod drives ball core rotating valve and opens to maximum, locating stud by on be positioned in the last positioning hole of curve bath upper end, adopt locating stud to replace the magnetic pin to avoid the magnetic pin in moving, to wear and tear.In case of emergency, drive the following positioning hole that locating stud moves to the curve bath lower end and just can close ball valve assurance safety as long as rotatory handling rotated counterclockwise.

Description of drawings

Drawing in side sectional elevation when Fig. 1 a is the ball valve standard-sized sheet.

Fig. 1 b is that A-A of Fig. 1 a is to view.

Plan view when Fig. 2 a is the ball valve contract fully.

Fig. 2 b is B-B sectional view of Fig. 2 a.

Fig. 3 a is the rotatory handling plan view.

Fig. 3 b is that C-C of Fig. 3 a is to sectional drawing.

Fig. 4 a is a magnetic key assembly plan view.

Fig. 4 b is that D-D of Fig. 4 a is to sectional drawing.

Embodiment

More than combine accompanying drawing that embodiment is elaborated.

Referring to illustrated in figures 1 and 2; Magnetic control locking ball valve comprises valve body 1, is located at the ball core 2 in the valve body 1, the valve rod 3 that is fixedly connected with ball core 2 tops; With the middle rotatory handling 7 that is fixedly connected with valve rod 3 upper ends, the protruded stigma 4 of valve body 1 upper end is connected with rotatory handling 7 center fixed by fastening screw trip bolt 10.In the middle of on the end face of valve body upper end protruded stigma 4 is the fixed hole 43 of screw 10; Fixed hole 43 peripheral hardwares hold the shrinkage pool 42 of magnetic bullet 8 and helical spring 9; Establish curve bath 41 at protruded stigma 4 edges, be located at locating stud 5 and said curve bath 41 vertical contacts outside the fastening screw trip bolt 10 in the rotatory handling 7, positioning pin hole 41a is established in the upper end of curve bath 41; Positioning pin hole 41b is set in the lower end, and it is limited at curve bath 41 two ends that rotatory handling 7 drives locating stud 5.

As shown in Figure 3, it is corresponding with protruded stigma 4 shrinkage pools 42 of valve body 1 upper end to be uniformly distributed with two spacing holes 71 on the bottom surface 74 of said handgrip 7.Rotate handgrip 7 upper surfaces 75 and be provided with two jacks 72,, but do not communicate with spacing hole 71 coaxalitys.A fixed pin holes 76 also is set on the bottom surface 74 of handgrip 7, and interference fit connects locating stud 5.There is a threaded step hole 73 in handgrip 7 center portions, and screw 10 is installed in this hole 73 handgrip 7 is connected with valve rod 3.

As shown in Figure 4, said magnetic key assembly is made up of key body 6, key plug 64 and strong magnetic pin 65.Said key 6 is provided with two threaded circular vestibules 61 and two rectangular slotted eyes 62; Circular vestibule 61 becomes 45 ° of angles with key body 6 horizontal axiss; Two strong magnetic pins 65 are separately fixed in the key plug 64, fix through the 64 lower end surface reducings of key plug.Magnetic bullet 8 is identical in strong magnetic pin 65 polarity in the key plug 64 and the above-mentioned shrinkage pool 42, and rectangular slotted eye 62 is enclosed within on the protruding ear 77 in handgrip 7 both sides, and magnetic key assembly 6 and handgrip 7 are combined into one, and are convenient to Open valve.

In valve body 1 upper end protruded stigma 4, two magnetic bullets 8 are housed; Magnetic bullet 8 lower ends connect spring 9; Spring 9 remains the trend of popping up; Handgrip 7 be provided with corresponding two spacing holes 71 and with spacing hole 71 same axis on two jacks 72, magnetic key assembly 6 be provided with two with magnetic bullet 8 corresponding strong magnetic pins 65.

When the valve closing state, under the effect of spring 9, two magnetic bullets 8 snap in the spacing hole 71 of handgrip 7, and valve can not be opened, and need open with special magnetic key assembly.

Be enclosed within on the handgrip 7 when magnetic key assembly 6 inserts, key plug 64 inserts in the jack 72 of handgrips 7, and the rectangular slotted eye 62 of key is enclosed within on the ear 77 of convexity of handgrip 7.According to the homopolar-repulsion principle of magnet, strong magnetic pin 65 produces the power of repelling each other with magnetic bullet 8, overcomes spring force and moves downward; Make magnetic bullet 8 break away from spacing hole 71; Key assembly 6 drives handgrip 7, and valve rod 5 rotates thereupon, and drives 2 rotations of ball core; Thereby open valve, locating stud 5 goes in the positioning pin hole 41a spacing along arc positioning groove 41.

In the time of need closing; Need not to use special magnetic key assembly 6, as long as clockwise rotate handgrip 7, the locating stud 5 that is fastened on the handgrip 7 also rotates thereupon; When locating stud 5 is run on the valve body 1 upper end protruded stigma 4 circular orientation cotter way 41 1 ends, lock, handgrip can't rotate again.At this moment, the shrinkage pool 42 on the protruded stigma 4 aligns with spacing hole 71 on the handgrip 7, and magnetic bullet 8 is under the power of doing of spring 9 elastic force; Spring in the spacing hole 71; Locating stud 5 also goes to down in the positioning pin hole 41b spacing along arc positioning groove 41, play lock function, can't open valve again.

Claims

1. magnetic control is locked ball valve; Comprise valve body; Be located at the ball core in the valve body, the valve rod that is fixedly connected with ball core top is with the middle rotatory handling that is connected with the valve rod upper end; And the magnetic key assembly that flexibly connects with rotatory handling; It is characterized in that in the protruded stigma of said valve body upper end, establishing magnetic pin and the shrinkage pool of admitting this magnetic pin, on the protruded stigma of said valve body upper end, establish arc groove, in said rotatory handling lower end surface, establish and the vertical locating stud that contacts of said arc groove; The both sides lug of the handler of said magnetic key assembly and said rotatory handling join merge to rotate after, the interior magnetic bullet homopolarity of the strong magnetic pin in the said magnetic key assembly and said valve body upper end protruded stigma is corresponding.

2. magnetic control according to claim 1 locking ball valve is characterized in that said protruded stigma (4) edge establishes curve bath (41), and positioning pin hole (41a) is established in the upper end of curve bath (41), and positioning pin hole (41b) is set in the lower end.

3. magnetic control according to claim 1 locking ball valve, the shrinkage pool (42) that it is characterized in that being uniformly distributed with on the bottom surface (74) of said rotatory handling (7) protruded stigma (4) on two spacing holes (71) and the valve body (1) is corresponding.

4. magnetic control according to claim 1 locking ball valve is characterized in that also being provided with on the bottom surface (74) of said rotatory handling (7) fixed pin holes (76) of a connection locating stud (5).

5. magnetic control according to claim 1 locking ball valve is characterized in that said magnetic set of keys body is made up of key body (6), key plug (64) and magnetic pin (65) by force, and two strong magnetic pins (65) are separately fixed in the key plug (64).