CN220354616U

CN220354616U - Anti-loosening valve

Info

Publication number: CN220354616U
Application number: CN202321938117.5U
Authority: CN
Inventors: 吴添元
Original assignee: Fujian Lidun Industry Co ltd
Current assignee: Fujian Lidun Industry Co ltd
Priority date: 2023-07-23
Filing date: 2023-07-23
Publication date: 2024-01-16
Anticipated expiration: 2033-07-23

Abstract

The utility model relates to the technical field of valves, in particular to a locking valve, which comprises a valve body, a valve cover and a valve rod, wherein the valve cover and the valve rod are arranged on the valve body; lifting the locking device upwards to drive the locking pin to leave the positioning hole of the valve cover, and enabling the handle to be in an unlocked state and capable of rotating freely; the locking nut rotates and the limiting block is positioned in the limiting groove of the handle, the locking pin enters the positioning hole of the valve cover under the action of the elasticity of the spring, and the handle is in a locking state, so that the problem that the valve is leaked in the valve and even a safety production accident occurs due to the fact that the handle is mistakenly touched to cause mistaken rotation is solved.

Description

Anti-loosening valve

Technical Field

The utility model relates to the technical field of valves, in particular to a locking valve.

Background

The valve is mainly used for controlling the on-off of a pipeline, the valve rotates through the valve rod, the internal part of the valve body acts, the on-off control is carried out on the pipeline, and the valve is convenient to operate and maintain due to the fact that the valve is simple in structure, rapid in opening and closing actions, widely applied to industries such as electric power, petrochemical industry, metal metallurgy, papermaking, pharmacy and water conservancy, and the like, and generally, the traditional valve only has two limiting positions of opening and closing, the middle position is unrestricted, and particularly the valve is manual, in the actual production process, the valve leaks in the valve due to the fact that the handle is mistakenly touched to cause mistaken rotation, and even safety production accidents occur in serious cases.

Disclosure of Invention

The utility model aims to provide an anti-loosening valve, which solves the problem that the valve is leaked in the valve due to the fact that the handle is touched by mistake to cause the mistaken rotation in the prior art, so that the safety production accident occurs.

In order to achieve the above purpose, the anti-loosening valve comprises a valve body, a valve cover and a valve rod, wherein the valve cover and the valve rod are arranged on the valve body.

Preferably, a protecting sleeve is fixedly connected to the valve body, and a limiting hole is formed in the protecting sleeve.

Preferably, the upper end of the valve rod is fixedly connected with a handle, a limit groove and a round hole are formed in the handle, and the limit block corresponds to the limit groove formed in the handle.

Preferably, the valve cover is provided with a positioning hole.

Preferably, the locating hole formed in the valve cover corresponds to the limit hole formed in the protective sleeve and the round hole formed in the handle.

Preferably, the surface of the nut is knurled.

Preferably, the protective sleeve is made of stainless steel.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects:

1. the device can accurately control the opening and closing positions of the valve through the locking device, and the safety and reliability of the valve are greatly improved.

2. The protective sleeve is made of stainless steel, so that the service life of the protective sleeve is greatly prolonged.

3. The knurling of the locking nut surface increases the coefficient of friction between the nut surface and the finger. Friction is increased, and the operation is convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the locking device of the present utility model in a locked state;

FIG. 3 is a cross-sectional view of the locking device of the present utility model in an unlocked state;

FIG. 4 is a schematic view of the structure of the positioning hole and the limiting groove of the present utility model;

fig. 5 is a schematic view of the structure of the locking device.

Reference numerals; the valve comprises a valve body 1, a valve cover 2, a positioning hole 21, a limiting hole 41, a limiting groove 51, a round hole 52, a valve rod 3, a protective sleeve 4, a handle 5, a locking device 6, a locking nut 61, a limiting block 62, a locking pin 63 and a spring 64.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a locking valve that moves, includes valve body 1 and locates valve gap 2 and valve rod 3 on the valve body 1, be equipped with locking device 6 on the valve body 1, locking nut 61 and locking pin 63 fixed connection on the locking device 6, spring 64 set up on the locking pin 63, nut 61 lower extreme welding has two stopper 62, fixedly connected with lag 4 on the valve body 1, the spacing hole 41 has been seted up to lag 4 inside, valve rod 3 upper end fixedly connected with handle 5, spacing groove 51 and round hole 52 have been seted up on the handle 5, stopper 62 corresponds with the spacing groove 51 of seting up on the handle 5, locating hole 21 has been seting up on the valve gap 2, locating hole 21 and the spacing hole 41 of seting up on lag 4 inside and round hole 52 on the handle 5 on the valve gap 2, the nut 61 surface adopts the knurling to handle, lag 4 adopts stainless steel to make.

As an optimization scheme of the utility model, the device can accurately control the opening and closing positions of the valve by arranging the locking device, thereby greatly improving the safety and reliability of the valve.

As an optimization scheme of the utility model, the surface of the locking nut 61 is knurled, so that the friction coefficient between the surface of the nut and fingers is increased. Friction is increased, and the operation is convenient.

As an optimization scheme of the utility model, the valve body 1 is provided with the protective sleeve 4, so that the service life of the device is greatly prolonged.

In the specific implementation, when the valve is in a locked state, the limiting block 62 at the bottom of the locking nut 61 is positioned in the limiting groove 51 of the handle 5, under the action of the elastic force of the spring 64, the locking pin 63 enters the positioning hole of the valve cover, the handle is in a locked state and cannot rotate, at the moment, even if an external force accidentally bumps against the handle, the handle cannot rotate, so that the opening and closing states of the valve cannot be influenced, if the valve needs to be opened, the locking device 6 is lifted upwards and rotated, the limiting block 62 is positioned on the upper surface of the handle 5, the bottom of the locking pin 63 is positioned on the upper surface of the valve cover 2, at the moment, the handle 5 is in an unlocked state and can rotate freely, the valve can be opened and closed, and when the locking device is in the unlocked state, the spring is always in a compressed state.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. The utility model provides a locking valve that moves, includes valve body (1) and locates valve gap (2) and valve rod (3) on valve body (1), its characterized in that, be equipped with locking device (6) on valve body (1), locking nut (61) and locking pin (63) fixed connection on locking device (6), spring (64) set up on locking pin (63), nut (61) lower extreme welding has two stopper (62).

2. The anti-loosening valve according to claim 1, wherein the valve body (1) is fixedly connected with a protective sleeve (4), and a limiting hole (41) is formed in the protective sleeve (4).

3. The anti-loosening valve according to claim 1, wherein the upper end of the valve rod (3) is fixedly connected with a handle (5), a limit groove (51) and a round hole (52) are formed in the handle (5), and the limit block (62) corresponds to the limit groove (51) formed in the handle (5).

4. A locking valve as claimed in claim 1, wherein the valve cap (2) is provided with a locating hole (21).

5. The anti-loosening valve according to claim 4, wherein the positioning hole (21) formed on the valve cover (2) corresponds to the limit hole (41) formed in the protecting sleeve (4) and the round hole (52) formed on the handle (5).

6. A check valve according to claim 1, characterized in that the surface of the nut (61) is knurled.

7. A check valve according to claim 2, characterized in that the protective sleeve (4) is made of stainless steel.