CN2599360Y - Constant magnetic theft-proof valve switch device - Google Patents

Abstract

A constant magnetic valve switch relates to a valve switch and is characterized in that an outer shell is positioned on the valve shell, which is provided with an upper check ring; the upper check ring is provided with a spring and a magnetic bar and the outer shell is provided with an upper cover; the upper cover and the upper check ring are linked by a magnetic bar; a magnet is laid in an upper opening ring; the magnet is correspondent with the magnetic bar in the upper check ring; a handle is provided out of the opening ring; the upper cover is opened by the opening ring, and the valve is opened and closed only by a special wrench. Therefore, the switch device is strongly protective, applicable to installation of outdoor pipes on different occasions, especially to oil extraction wellheads and oil transmission pipes in oil fields as well as outdoor pipes in oil refining plants, so as to prevent random opening and closing of non-staffs, and make sure of production safety.

Description

Permanent magnetic valve for guarding against theft switch gear

Technical field

The utility model relates to a kind of switch gear of valve.

Background technique

The various valves of reality usefulness have gate valve, dish valve, change various ways such as core valve, ball valve, stop valve.The valve of these numerous kinds generally is to carry out switch by the mode of rotation.With regard to gate valve commonly used in producing, flashboard is housed in valve body, on flashboard, is connecting the outside thread valve rod, on the screw thread valve rod, be equipped with and rotate the nut that can not move up and down, swivel nut just can make valve rod drive flashboard and move up and down, thereby reaches the purpose that opens or closes valve; Structurally with the flashboard on the closure plate replacement gate valve, its working principle with gate valve roughly the same for stop valve; Ball valve structurally replaces flashboard with the valve ball in band hole, and the valve ball upper end is equipped with valve rod, and rotary valve rod just can change the direction of valve ball, thereby finishes the task of opening and closing.In valve family, the principal organ of opening and closing is nut, valve rod.Be characterized in simple in structure, good seal performance, easy to operate, but outer or open-air if be installed in factory building, on the well mouth of oil well as recover petroleum, the inoperative personnel also can operate its switch, therefore often have the incident of theft crude oil to take place.Even lay down handle or runner, other people adopt some simple tools also can the opening and closing valve, cause damage to the user, can have an accident when serious, and influence is produced.

The model utility content

The purpose of this utility model provides a kind of permanent magnetic valve for guarding against theft switch gear, utilizes it can avoid the inoperative personnel arbitrarily to open or close valve effectively, accomplishes safety in production.

The technical solution of the utility model is to realize like this, a kind of permanent magnetic valve for guarding against theft switch gear, comprise that valve chest and valve rod constitute, its special way is, (1) valve rod is installed in the valve chest, nut is installed in the enclosure, and valve rod connects with nut mutually by screw thread, and the nut lower end is equipped with thrust-bearing.(2) in the upper end of valve chest shell is installed, top in the enclosure is installed with lock ring, and spring and bar magnet are housed in the last lock ring.(3) in the shell upper end loam cake is housed, connects mutually by bar magnet between loam cake and the last lock ring.(4) on the nut upper-end surface, has groove.(5) upward stud with magnetic patch in the unlatching ring, the position of magnetic patch is corresponding with the position of bar magnet in the last lock ring, has handgrip outside unlatching encircles.

In above-mentioned technical solution, its special way is that also (1) also is equipped with down lock ring in the enclosure, in the lock ring interior ring is being housed down,, is connecting mutually by bar magnet between following lock ring and the interior ring in the lock ring bar magnet and spring being housed down, have short pin in the lower end of interior ring, mask is fluted in the top.(2) stud with magnetic patch in the unlatching ring down, the position of magnetic patch is corresponding with the position of bar magnet in the following lock ring, and following unlatching encircles the outer handgrip that has.

A kind of permanent magnetic valve for guarding against theft switch gear comprises that valve chest and valve rod constitute, and its special way is that (1) valve rod is installed in the valve chest, and nut is installed in the enclosure, and valve rod connects with nut mutually by screw thread, and the nut lower end is equipped with thrust-bearing.(2) bar magnet and spring are housed on nut, on shell, have groove.

The utility model has the advantages that: directly do not connect owing to open between ring and the shell up and down, be enclosed within on the shell during use, take away after using up, remaining valve switch device all in the enclosure, open the switch gear that ring at all can't operated valve, can prevent effectively that the not operation personnel from opening or closing valve, can ensure safety in production, also can prevent the lawless people theft.

Description of drawings

Accompanying drawing 1 is the structural representation that partly cuts open of the present utility model.

Accompanying drawing 2 be another kind of technological scheme of the present utility model partly cut open structural representation.

Embodiment

3 groups of bar magnets 6 of installation and spring 7 (are installed 1 group, all can more than 2 groups or 3 groups in last lock ring 5, depending on the design), every group of 2 bar magnets, be up and down and arrange, 3 groups of bar magnets 6 along the circumferential direction can be even distributions, also can non-uniform Distribution, last lock ring 5 is fixedly mounted on top in the shell 17 by welding.Install on the following lock ring 12 4 bar magnets 13 and spring (install 1-3 or more than 4 all can, depending on the design), following lock ring 12 is fixed by welding in the shell 17.2-4 short pin 14 of the lower end surface fixed installation of interior ring 10, its upper-end surface has groove, and interior ring 10 is bound up by bar magnet 13 and following lock ring 12.As the case may be, lock ring can be designed as 1-3 road or more.Lock ring also can directly design on nut 16.The upper end of loam cake 4 is designed to sphere shape, is bound up by bar magnet 6 and last lock ring 5.The lower end of nut 16 is equipped with thrust-bearing 18, the upper-end surface of nut 16 has groove 15, groove 15 is corresponding with the lower end surface weak point pin 14 of interior ring 10, nut 16 is bound up by screw thread and valve rod 1, below the screw rod 1 valve flashboard is installed, screw rod 1 is installed on the valve chest 19, and shell 17 is fixedly mounted on the valve chest 19 by welding.

Last unlatching ring 9 is a ring bodies, or several circular arcs are planar, and inner side surface studs with magnetic patch 8, and the position of the bar magnet 8 on its position and piece number and the last lock ring 5 is corresponding, opens the outer survey of ring and is fixed with 2-4 handgrip.Following unlatching ring 11 also is a ring bodies, or some circular arcs are planar, and inner side surface studs with magnetic patch, and the position of bar magnet is corresponding on its position and piece number and the following lock ring 12, and survey outward is fixed with 2-4 handgrip.When Open valve, but last unlatching ring 9 and following unlatching encircle 11 equal suits or abut on the shell 17, utilize it to open valve, utilize the special spanner Open valve, then loam cake 4 is installed again, after hours, soon gone up unlatching ring 9, following unlatching ring 11 and special spanner and take away, can guarantee arbitrarily Open valve of inoperative personnel

In order further to strengthen its protective ability, loam cake 4 and shell 17 can be taked special steels such as alloyed steel, nickel guiding principle, also can take the surface Hardening Treatment technology of steel, make it reach the ability of pick-proof, anti-saw, gas cutting proof, the lawless person can't be destroyed, ensure safety in production.

Claims (3)

1. a permanent magnetic valve for guarding against theft switch gear comprises valve chest (19) and valve rod (1) formation, it is characterized in that:

1. valve rod (1) is installed in the valve chest (19), and nut (16) is installed in the shell (17), and valve rod (1) connects with nut (16) mutually by screw thread, and nut (16) lower end is equipped with thrust-bearing (18);

2. in the upper end of valve chest (19) shell (17) is installed, the top in shell (17) is installed with lock ring (5), and spring (7) and bar magnet (6) are housed in the last lock ring (5);

3. in shell (17) upper end loam cake (4) is housed, connects mutually by bar magnet (6) between loam cake (4) and the last lock ring (5);

4. on nut (16) upper-end surface, has groove;

5. go up in the unlatching ring (9) and stud with magnetic patch (8), the position of magnetic patch (8) is corresponding with the position of the interior bar magnet of last lock ring (5) (6), opens and encircles the outer handgrip (2) that has.

2. permanent magnetic valve for guarding against theft switch gear according to claim 1 is characterized in that:

1. lock ring (12) down also is housed in shell (17), in the lock ring (12) interior ring (10) is being housed down, in the lock ring (12) bar magnet (13) and spring are being housed down, connect mutually by bar magnet (13) between following lock ring (12) and the inner lock rings (10), have short pin (14) in the lower end of interior ring (10), mask is fluted in the top;

2. open in the ring (11) down and stud with magnetic patch, the position of magnetic patch is corresponding with the position of the interior bar magnet of following lock ring (12) (13), has handgrip (2) outside the following unlatching ring (11).

3. a permanent magnetic valve for guarding against theft switch gear comprises valve chest (19) and valve rod (1) formation, it is characterized in that:

1. valve rod (1) is installed in the valve chest (19), and nut (20) is installed in the shell (22), and valve rod (1) connects with nut (20) mutually by screw thread, and nut (20) lower end is equipped with thrust-bearing (18);

Bar magnet (23) and spring (21) 2. are housed on nut (20), on shell (22), have groove.