CN202188216U

CN202188216U - Lock structure for valve

Info

Publication number: CN202188216U
Application number: CN201120255857XU
Authority: CN
Inventors: 董服义
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-19
Filing date: 2011-07-19
Publication date: 2012-04-11
Anticipated expiration: 2021-07-19

Abstract

The utility model belongs to the technical field of valve, particularly relates to a lock structure for a valve. The lock structure for the valve comprises a valve body and a handle, and is characterized in that the valve body is provided with a boss, one side of the boss is provided with a tapped blind hole, the handle is provided with a thorough hole corresponding to the tapped blind hole, and the handle and the valve body can be locked by a screw sequentially passing through the thorough hole and the tapped blind hole. The utility model has good anti-theft performance, is convenient in structure, and is convenient to install and maintain. Additionally, the lock structure can be better used commonly and is suitable for most kinds of valves.

Description

A kind of lock structure of valve

Technical field

The utility model belongs to valve technology field, is specifically related to a kind of lock structure that is used for valve.

Background technique

Valve is the important control parts in the fluid delivery system, have by, adjusting, water conservancy diversion, prevent functions such as adverse current, voltage stabilizing, shunting or overflow pressure release.At present, the valve of most of types does not have the function of locking, and the valve with locking function occupies the minority relatively.

Like the stop valve of magnetic locking, it adopts the magnetic spool, and in the surface of shell perforate of spool, the hole is embedded in magnetic bullet, and bonnet is installed on it, realizes being pressed into and ejecting of pellet shot from a slingshot through the Magnetic spanner that cooperates with bonnet, thereby reaches the locking function of stop valve.This magnetic locking stop valve has anti-theft preferably, but this structure relative complex, to having relatively high expectations of manufacturing process, cost is also high.

The locking of commercially available ball valve and for example; Its structure usually adopts following mode: the valve rod of ball valve stretches out the end that valve body exposes and processes simple polygonal; Like common triangle, Hexagon etc.; Use endoporus to twist and close, drive valve rod and rotate, thereby realize the switching of ball valve as the key of respective shapes and valve rod exposed junction.This ball valve the lock structure anti-theft effect not good, use instruments such as general spanner or pliers just can ball valve to be opened, therefore can not take precautions against effectively and illegally usurped.For the charge of enterprises such as water supply air feed, this is a problem demanding prompt solution.

Summary of the invention

For solving the above-mentioned deficiency of the lock structure that has valve now, the purpose of the utility model is to provide a kind of lock structure that is used for valve.

For realizing above-mentioned purpose, the technological scheme that the utility model adopts is:

A kind of lock structure of valve comprises valve body and handle, it is characterized in that establishing boss on the said valve body; Boss one side is established tapped blind hole; Establish on the handle and the corresponding through hole of this tapped blind hole, screw passes above-mentioned through hole and tapped blind hole successively, with handle and valve body locking.

Further, said boss is also offered tapped blind hole at opposite side, correspondingly, establishes corresponding with it through hole on the handle, through passing the screw of through hole and tapped blind hole successively, with handle and valve body locking.

For dissimilar valves, the shape of said handle differs, and can be the shaft-like or colyliform of bar.

Further, said screw head is the plum blossom shape.

Preferably, said screw head is the Triangular Flos Mume shape.

Use and the supporting key opening/shutting valve of screw, the shape of the said key mouth of pipe and screw head shape are suitable, be the plum blossom shape also, also are provided with magnet piece in the key, stubbornly can it be adsorbed on the key when locating screw, prevent to drop and look for and loseing.

Compare existing technology, the lock structure of a kind of valve of the utility model adopts the screw of wabbler and supporting key, be difficult for being had better theftproof performance by imitated, and simple in structure, be convenient to installation and maintenance.In addition, owing to offer screw respectively in the both sides of valve body boss, can select one of which that lock screw is installed arbitrarily, for the valve that is installed on corner or pipeline turning, locking or can avoid the dead angle when opening makes things convenient for manual operation.In addition, this lock structure has good versatility, is applicable to the valve of most of types.

Description of drawings

Fig. 1 is the utility model embodiment 1 schematic representation of (being used for ball valve);

Fig. 2 is the schematic representation of each isolation of components among Fig. 1;

Fig. 3 is the schematic representation (right elevation of Fig. 2) of the utility model ball embodiment 1 other direction;

Fig. 4 is the plan view of handle among the utility model embodiment 1;

Fig. 5 is the utility model embodiment 2 schematic representation of (being used for gate valve);

Fig. 6 is the sectional drawing of valve body projection among the utility model embodiment 2;

Fig. 7 is the plan view of valve body projection among the utility model embodiment 2;

Fig. 8 is the structural representation of handwheel among the utility model embodiment 2;

Fig. 9 is the C-C sectional drawing of Fig. 8;

Figure 10 is the stereogram of lock screw in the utility model;

Figure 11 is a matching used magnetic key schematic representation in the utility model;

Figure 12 is the orifice configuration schematic representation of magnetic key.

Embodiment

Embodiment one

Shown in Fig. 1～4, for the lock structure of the utility model is applied to the mode of execution on the ball valve, comprise valve body 1 and handle 2, handle 2 integral body are butterfly-like.Said valve body 1 central authorities establish a boss 11, and the both sides of boss 11 are offered tapped

blind hole

12 and 13 respectively, and wherein, tapped blind hole 12 openings are substantially horizontal, and tapped blind hole 13 openings are vertical direction.Establishing groove 21 at handle 2 crown centers, screws with valve rod 14 screw threads and is connected in hexagon nut 3 embedding grooves 21 backs.

Said butterfly-like handle 2 stretches out projection A and the projection B that matches with ball valve boss 11 from the bottom, offer the substantially horizontal tapped hole 12 corresponding through holes 22 with boss one side on the projection A.Simultaneously, handle 2 is offered the through hole 23 corresponding with tapped blind hole 13 on opposite side.Can spin through lock screw 4 between tapped blind hole and the corresponding through hole.

Shown in figure 10, lock screw 4 has an outwards Triangular Flos Mume shape head of protrusion.Matching used with it magnetic key is shown in figure 11, and it has the shape (referring to Figure 12) that is complementary with the lock screw head at mouth of pipe place.Because the lock screw volume is less, usually loses because of dropping because of carelessness to look for during installation, therefore; Key design becomes magnetic key, promptly embeds a magnet piece 5 in inside, makes it can adsorb lock screw; Screw is difficult for dropping, thereby brings convenience for the operation of installation personnel.

The working principle of the lock structure of ball valve: tapped

blind hole

12,13 respectively with handle on through

hole

22,23 when aliging; The projection A of bottom and projection B also fit with the both sides of valve body boss 11 respectively, and this moment, ball valve was in locked position, with magnetic key lock screw are screwed into also locking of through

hole

22 or 23; Handle and valve body boss be fastenedly connected get final product; In two positions, select one install lock screw after, handle can not rotate, and realizes the function of locking ball valve.

In the time of need opening ball valve, same only the need taken out another mistake hour hands rotating handles with lock screw with key from the through hole of the tapped hole of boss and handle; Make projection A and B leave the valve body boss; Simultaneously, when handle rotated counterclockwise 90 °, valve rod also rotated 90 °; Drive inner valve ball and rotate, thereby realize opening fully of ball valve.

Embodiment two

Shown in Fig. 5～9, the mode of execution when being applied to gate valve for the lock structure of the utility model comprises valve body 1 and colyliform handle 2 (being handwheel), and handwheel 2 is threaded with valve rod 14.Said valve body 1 central authorities establish a boss 11, and the both sides of boss 11 are offered tapped

blind hole

12 and 13 respectively, and tapped

blind hole

12,13 openings are all at vertical direction.Offer through

hole

22,23 on the handwheel, corresponding with tapped

blind hole

12,13 respectively, spin through lock screw 4 between tapped blind hole and the corresponding through hole.

Its working principle and embodiment one roughly the same repeat no more.

The above-mentioned lock structure that is merely a kind of valve of the utility model ball valve is applied to two kinds of embodiments of ball valve and gate valve; Be appreciated that; The utility model structurally also can have multiple conversion, to be applicable to dissimilar valves, is not limited to the concrete structure of the foregoing description.Conspicuous conversion or change the protection domain that shape all falls into the utility model for those of ordinary skills.

Claims

1. the lock structure of a valve comprises valve body and handle, it is characterized in that establishing boss on the said valve body; Boss one side is established tapped blind hole; Establish on the handle and the corresponding through hole of this tapped blind hole, screw passes above-mentioned through hole and tapped blind hole successively, with handle and valve body locking.

2. the lock structure of a kind of valve as claimed in claim 1 is characterized in that said boss also offers tapped blind hole at opposite side, correspondingly, establishes corresponding with it through hole on the handle, through passing the screw of through hole and tapped blind hole successively, handle and valve body is locked.

3. the lock structure of a kind of valve as claimed in claim 1 is characterized in that said handle is the shaft-like or colyliform of bar.

4. according to claim 1 or claim 2 a kind of lock structure of valve is characterized in that said screw head is the plum blossom shape.

5. according to claim 1 or claim 2 a kind of lock structure of valve is characterized in that said screw head is the Triangular Flos Mume shape.