CN212155879U - A ball valve valve closing structure - Google Patents

Abstract

The utility model discloses a valve closing structure of a ball valve, which comprises a valve body structure, an easily dismantled valve ball structure and a ball valve control structure. The top of the ball structure is provided with a ball valve control structure. The valve body structure includes a valve tube and a flange. Both ends of the valve tube are provided with flanges. The flanges are circular. The valve tube and flange are fixed by welding and are set inside the flange. With lip seal, the utility model is provided with a ball valve seat, a convex connection end and a fixed end groove, which is very convenient for the replacement and cleaning of the inside of the ball valve, which can prolong the service time of the ball valve. The internal flow ball valve is welded with the handle. , there will be no damage in the process of use, and the control rod sealing ring is provided at the connection between the control rod jack and the control rod, which has better sealing performance. The connection end protrusion and the fixed end groove are separated, and the interior can be cleaned.

Description

A ball valve valve closing structure

technical field

The utility model belongs to the technical field of ball valves, in particular to a valve closing structure of a ball valve.

Background technique

Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. Among them, the hard-sealed V-shaped ball valve has a strong shear force between the V-shaped ball core and the metal valve seat of hard alloy surfacing, which is especially suitable for fibers and tiny solid particles. etc. medium. The multi-port ball valve on the pipeline can not only flexibly control the confluence, diversion, and switching of the flow direction of the medium, but also can close any channel and connect the other two channels. This type of valve should generally be installed horizontally in the pipeline.

However, the existing ball valve valve closure structure still has some deficiencies in the use process. The long-term use of the ball valve is subject to the erosion of materials, resulting in friction and serious impact wear, and the internal impurities cannot be cleaned. The time is too long, resulting in The use time is shortened, and it is more troublesome for the later staff to replace the internally damaged components.

Utility model content

The purpose of the present utility model is to provide a valve closing structure of a ball valve, so as to solve the problem of long-term use of the ball valve proposed in the above-mentioned background technology, being scoured by materials, causing friction, causing serious impact wear, internal impurities can not be cleaned, time If it is too long, the use time will be shortened, and it is more troublesome for the staff to replace the damaged components in the later stage.

In order to achieve the above purpose, the utility model provides the following technical solutions: a ball valve valve closing structure, including a valve body structure, a dismantling valve ball structure and a ball valve control structure, and the valve body structure is provided with a dismantling type at the center position. Valve ball structure, the top of the easily dismantled valve ball structure is provided with a ball valve control structure.

Preferably, the valve body structure includes a valve tube and a flange, flanges are provided at both ends of the valve tube, the flanges are circular, the valve tube and the flange are fixed by welding, and a lip seal is arranged inside the flange .

Preferably, the easily removable valve ball structure comprises a ball valve holder, a hemispherical connection end and a hemispherical fixed end, a control rod socket is arranged in the center of the ball valve holder, and a connection end protrusion is arranged at the inner bottom end of the hemispherical connection end, The hemispherical connection end and the connection end protrusion are fixed by welding, a fixed end groove is arranged at the inner bottom end of the hemispherical fixed end, and the hemispherical fixed end and the fixed end groove are fixed by welding.

Preferably, a hemisphere is formed by snap-connecting the connection end protrusion at the bottom of the hemisphere connection end and the fixed end groove at the bottom of the hemisphere fixed end, and the connection end protrusion at the bottom of the hemisphere connection end and the fixed end at the bottom of the hemisphere fixed end The groove and the ball valve seat are screwed together to form a round sphere.

Preferably, the ball valve control structure includes a control rod and a handle, the bottom of the control rod is provided with an internal flow ball valve, the control rod and the internal flow ball valve are fixed by welding, the bottom surface of the internal flow ball valve is provided with a rotating shaft, the internal flow ball valve and The shaft is fixed by welding, the control rod is fixed on the control rod socket, a control rod sealing ring is arranged at the connection between the control rod and the control rod socket, a handle is provided at one end of the control rod, and the top of one end of the handle is provided with a handle. Provided with screws, the lever and the handle are fastened and fixed by the screws.

Compared with the prior art, the beneficial effects of the present utility model are: the utility model is very convenient to replace and clean the inside of the ball valve by being provided with a ball valve seat, a connection end protrusion and a fixed end groove, and can prolong the service time of the ball valve, The internal internal flow ball valve is welded with the handle, and will not be damaged during use, and a control rod sealing ring is provided at the control rod jack and the control rod connection, which has better sealing performance. When there is impurities, unscrew the ball valve seat directly, and separate the connection end protrusion from the fixed end groove, and then the internal cleaning can be carried out.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the side structure schematic diagram of the utility model;

3 is a schematic diagram of the internal structure of the ball valve of the present invention;

Fig. 4 is the structural schematic diagram of the ball valve seat of the present invention;

5 is a schematic diagram of the hemispherical connection and fixing structure of the present invention;

In the figure: 1. Valve body structure; 11. Valve tube; 111. Lip seal; 12. Flange; 2. Detachable valve ball structure; 21. Ball valve seat; 22. Control rod socket; Connection end; 231, connection end protrusion; 24, hemispherical fixed end; 241, fixed end groove; 3, ball valve control structure; 31, control rod; 32, handle; 33, screw; 34, internal flow ball valve; 35, Rotating shaft; 36. Control rod sealing ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to FIG. 1-FIG. 5, the present utility model provides the following technical solutions: a ball valve valve closing structure, including a valve body structure 1, a detachable valve ball structure 2 and a ball valve control structure 3, the center position of the valve body structure 1 An easily removable valve ball structure 2 is provided, and a ball valve control structure 3 is provided on the top of the easily removable valve ball structure 2 .

In order to fix the valve body, in this embodiment, preferably, the valve body structure 1 includes a valve tube 11 and a flange 12, the two ends of the valve tube 11 are provided with flanges 12, the flange 12 is circular, the valve tube 11 and the flange 12 are The flange 12 is fixed by welding, and a lip seal 111 is provided inside the flange 12 .

In order to fix the ball valve, in this embodiment, preferably, the easily removable valve ball structure 2 includes a ball valve holder 21, a hemispherical connection end 23 and a hemispherical fixed end 24, and a control rod insertion hole 22 is provided in the center of the ball valve holder 21. A connection end protrusion 231 is provided at the inner bottom end of the hemispherical connection end 23, the hemispherical connection end 23 and the connection end protrusion 231 are fixed by welding, and a fixed end groove 241 is provided at the inner bottom end of the hemispherical fixed end 24, and the hemispherical fixed end 24 and the fixed end groove 241 are fixed by welding.

In order to facilitate the disassembly of the ball valve, in this embodiment, preferably, a hemisphere is formed by snap-connecting the connection end protrusion 231 at the bottom of the hemispherical connection end 23 and the fixed end groove 241 at the bottom of the hemispherical fixed end 24 to form a hemisphere, and through the hemisphere connection end 23 The connection end protrusion 231 at the bottom, the fixed end groove 241 at the bottom of the hemispherical fixed end 24 and the ball valve holder 21 are screwed together to form a circular sphere.

In order to control the ball valve, in this embodiment, preferably, the ball valve control structure 3 includes a control rod 31 and a handle 32, the bottom of the control rod 31 is provided with an internal flow ball valve 34, and the control rod 31 and the internal flow ball valve 34 are fixed by welding. , the bottom surface of the internal flow ball valve 34 is provided with a rotating shaft 35, the internal flow ball valve 34 and the rotating shaft 35 are fixed by welding, the control rod 31 is placed on the control rod socket 22 and fixed, and the control rod 31 and the control rod socket 22 are connected at the joint A control rod sealing ring 36 is provided, one end of the control rod 31 is provided with a handle 32 , and a top of one end of the handle 32 is provided with a screw 33 , and the control rod 31 and the handle 32 are tightened and fixed by the screw 33 .

The working principle and use process of the utility model: after the utility model is installed, firstly check the installation, fixation and safety protection of the utility model, and then it can be used. The bottom fixed end groove 241 of the hemispherical fixed end 24 is engaged with the fixed end groove 241 of the hemispherical fixed end 24 for engaging and fixing. Then, the shaft 35 on the bottom surface of the inner flow ball valve 34 and the control rod 31 above the inner flow ball valve 34 are placed on the hemisphere connecting end 23 and the hemisphere. Inside the fixed end 24, one end of the control rod 31 is aligned with the control rod socket 22 inside the ball valve holder 21, and then the hemispherical fixed end 24 is tightened and fixed, the exposed part of the control rod 31 can be placed on the handle 32, After tightening the screw 33 to fix the whole, the handle 32 can be directly rotated when it needs to be opened or closed.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A valve closing structure for a ball valve, comprising a valve body structure (1), a dismantled valve ball structure (2) and a ball valve control structure (3), characterized in that: the center position of the valve body structure (1) An easily dismantled valve ball structure (2) is provided, and a ball valve control structure (3) is arranged on the top of the easily dismantled valve ball structure (2). 2 . The valve closing structure of a ball valve according to claim 1 , wherein the valve body structure ( 1 ) comprises a valve tube ( 11 ) and a flange ( 12 ), and the valve tube ( 11 ) Both ends are provided with flanges (12), the flanges (12) are circular, the valve tube (11) and the flanges (12) are fixed by welding, and the flanges (12) are provided inside the flanges (12). With lip seal (111). 3. The valve closing structure of a ball valve according to claim 1, characterized in that: the easily dismantled valve ball structure (2) comprises a ball valve seat (21), a hemisphere connecting end (23) and a hemisphere fixing end (24), the inner center of the ball valve seat (21) is provided with a control rod insertion hole (22), the inner bottom end of the hemispherical connection end (23) is provided with a connection end protrusion (231), the hemisphere The connection end (23) and the connection end protrusion (231) are fixed by welding, the inner bottom end of the hemispherical fixed end (24) is provided with a fixed end groove (241), the hemispherical fixed end (24) and the fixed end The groove (241) is fixed by welding. 4. The valve closing structure of a ball valve according to claim 3, characterized in that: through the connecting end protrusion (231) at the bottom of the hemispherical connecting end (23) and the fixing at the bottom of the hemispherical fixed end (24) The end grooves (241) are snap-connected to form a hemisphere, through the connecting end protrusions (231) at the bottom of the hemispherical connecting ends (23), the fixed end grooves (241) at the bottom of the hemispherical fixed ends (24), and the ball valve seat (21) Tighten to form a round sphere. 5. The valve closing structure of a ball valve according to claim 1, wherein the ball valve control structure (3) comprises a control rod (31) and a handle (32), and the control rod (31) The bottom is provided with an internal flow ball valve (34), the control rod (31) and the internal flow ball valve (34) are fixed by welding, and the bottom surface of the internal flow ball valve (34) is provided with a rotating shaft (35). The internal flow ball valve (34) and the rotating shaft (35) are fixed by welding, the control rod (31) is placed on the control rod socket (22) and fixed, the control rod (31) and the control rod socket (22) ) connection is provided with a control rod sealing ring (36), a handle (32) is provided at one end of the control rod (31), and a screw (33) is provided at the top of one end of the handle (32), so The control rod (31) and the handle (32) are fastened and fixed by screws (33).

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