CN215371239U

CN215371239U - Locking gate valve

Info

Publication number: CN215371239U
Application number: CN202121723506.7U
Authority: CN
Inventors: 胡方银
Original assignee: Zhejiang Aobayin Valve Co ltd
Current assignee: Zhejiang Aobayin Valve Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-31
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a locking gate valve, which comprises a valve whole body and a locking handle matched with the valve whole body, wherein the locking handle comprises a valve handle, the valve handle is matched with the valve whole body and used for opening or closing the valve, a hand wheel is fixedly arranged at the upper end of the valve handle, and a stress assembly is positioned at the lower end of the valve handle and used for transmitting torque.

Description

Locking gate valve

Technical Field

The utility model belongs to the technical field of gate valves, and particularly relates to a locking gate valve.

Background

Gate valves are very common valves, and are defined in the standard GB/T21465-2008 "valve nomenclature" as: the opening and closing piece (flashboard) is driven by the valve rod and makes a straight-line lifting motion along the valve seat (sealing surface). The medium in the pipeline can be circulated or cut off by lifting the flashboard; when the medium circulates, the flashboard is in an open state; when the medium flows at the maximum, the flashboard is in a fully opened state; when the medium is closed and circulated, the flashboard is in a closed state, namely the flashboard and the sealing surface form sealing. The hand wheel is often fixedly connected to a valve rod of the common gate valve, anyone can change the using state of the valve body by rotating the hand wheel, and the gate valve capable of locking the valve rod is needed in order to prevent other people from randomly changing the using state of the valve.

However, like the gate valve structure of the locking gate valve of which the publication number of the chinese utility model is CN205841827U, the parts in the lock handle of such a structure are not easy to be processed, and the friction is too large in the torque transmission process, which easily causes the abrasion of the parts in the lock handle.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the novel door lock which is simple in structure and convenient to open

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a locking gate valve, includes that the valve is whole and with the whole complex lock handle of valve, characterized by: the lock handle comprises

A valve handle, the valve handle is integrally matched with the valve and used for opening or closing the valve,

a hand wheel which is fixedly arranged at the upper end of the valve handle,

and the stress assembly is positioned at the lower end of the valve handle and is used for transmitting torque.

The utility model is further configured to: the stress assembly comprises

An eccentric shaft formed at the lower end of the valve handle, and the tail part of the eccentric shaft is provided with a retaining edge,

the clamping block is matched with the eccentric shaft and used for transmitting the torque of the valve handle to the valve,

the sleeve is arranged at the lower end of the valve handle, and a groove part for the fixture block to extend out is arranged on the sleeve.

The utility model is further configured to: the part of the clamping block located in the sleeve is provided with a supporting part clamped on the inner wall of the sleeve, the inner side of the supporting part is a plane, and the inner side of the supporting part can be abutted against the plane of the inner side of the supporting part in the rotation process of the eccentric shaft.

Through adopting foretell technical scheme, the supporting part is the plane to can be convenient for process, and the angle that the lock handle rotated when reducing the transmission moment of torsion, thereby reduced the processing degree of difficulty, and can ensure the cost of processing.

The utility model is further configured to: the supporting part is provided with a lubricating groove which is an arc surface, and balls capable of rolling freely are embedded in the lubricating groove.

Through adopting foretell technical scheme, the setting of ball through the contact of sphere and cylinder, equals traditional cylinder and cylinder's contact and can reduce the wearing and tearing between eccentric shaft and the ball, and then has ensured the life of lock handle to the maintenance cost has been reduced.

The utility model is further configured to: the number of the balls on the lubricating groove is at least two.

Through adopting foretell technical scheme, the stability of moment of torsion transmission can be ensured to two and above balls, and then the opening and close of the valve of being convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the construction of the lock handle of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

reference numbers in the drawings and corresponding part names: 1-valve whole body, 2-valve handle, 3-hand wheel, 4-eccentric shaft, 5-fixture block, 6-sleeve, 7-groove part, 8-lubricating groove and 9-ball.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 3.

Example one

The utility model provides a locking gate valve, includes the whole 1 lock handle of valve and the whole 1 complex of valve, characterized by: the lock handle comprises

A valve handle 2, the valve handle 2 is matched with the valve body 1 and is used for opening or closing the valve,

a hand wheel 3, the hand wheel 3 is fixedly arranged at the upper end of the valve handle 2,

and the stress assembly is positioned at the lower end of the valve handle 2 and is used for transmitting torque.

The utility model is further configured to: the stress assembly comprises

An eccentric shaft 4, the eccentric shaft 4 is formed at the lower end of the valve handle 2, the tail part of the eccentric shaft 4 is provided with a blocking edge,

the fixture block 5 is matched with the eccentric shaft 4 and is used for transmitting the torque of the valve handle 2 to the valve,

the sleeve 6 is arranged at the lower end of the valve handle 2, and a groove part 7 for the fixture block 5 to extend out is arranged on the sleeve 6.

Further: the part of the clamping block 5 positioned in the sleeve 6 is formed with a supporting part clamped on the inner wall of the sleeve 6, the inner side of the supporting part is a plane, and the supporting part can be abutted against the inner plane of the supporting part in the rotation process of the eccentric shaft 4.

The plane is formed by the supporting parts, so that the processing is convenient, the rotating angle of the lock handle during the transmission torque can be reduced, the processing difficulty is reduced, and the processing cost can be ensured.

Example two

Further on the basis of the first embodiment: the supporting part is provided with a lubricating groove 8, the lubricating groove 8 is an arc surface, and a ball 9 capable of rolling freely is embedded in the lubricating groove 8.

Through the setting of ball 9, through the contact of sphere and cylinder, equal traditional cylinder and cylinder's contact can reduce the wearing and tearing between eccentric shaft 4 and the ball 9, and then ensured the life of lock handle to the maintenance cost has been reduced.

EXAMPLE III

On the basis of the second embodiment: the number of balls 9 on the lubrication groove 8 is at least two.

The stability of torque transmission can be ensured through two or more balls 9, and then the opening and closing of the valve are facilitated.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a locking gate valve, includes the whole (1) of valve and with the whole (1) complex lock handle of valve, characterized by: the lock handle comprises

A valve handle (2), the valve handle (2) is matched with the valve body (1) and is used for opening or closing the valve,

a hand wheel (3), the hand wheel (3) is fixedly arranged at the upper end of the valve handle (2),

the stress assembly is positioned at the lower end of the valve handle (2) and is used for transmitting torque;

the stress assembly comprises

An eccentric shaft (4), the eccentric shaft (4) is formed at the lower end of the valve handle (2), the tail part of the eccentric shaft (4) is provided with a blocking edge,

a clamping block (5), the clamping block (5) is matched with the eccentric shaft (4) and is used for transmitting the torque of the valve handle (2) to the valve,

the sleeve (6) is arranged at the lower end of the valve handle (2), and a groove part (7) for the fixture block (5) to extend out is arranged on the sleeve (6).

2. The locking gate valve of claim 1, wherein: the part of the clamping block (5) positioned in the sleeve (6) is provided with a supporting part clamped on the inner wall of the sleeve (6), the inner side of the supporting part is a plane, and the inner side of the supporting part can be abutted against the plane of the inner side of the supporting part in the rotating process of the eccentric shaft (4).

3. A locking gate valve according to claim 2, wherein: the supporting part is provided with a lubricating groove (8), the lubricating groove (8) is an arc surface, and balls (9) capable of rolling freely are embedded in the lubricating groove (8).

4. A locking gate valve according to claim 3, wherein: the number of the balls (9) on the lubricating groove (8) is at least two.