CN203847749U - Water eliminating hammer cock valve - Google Patents

Abstract

A water eliminating hammer cock valve is composed of a valve body, a valve cover, a valve rod, a cock, a piston, a pushing rod and a sliding block. A channel is formed in the cock, the piston is arranged in the channel, one end of the piston is fixedly connected with the pushing rod through a bolt, the other end of the pushing rod is connected with the sliding block, the piston, the pushing rod and the sliding block are arranged in the cock through nuts, and a resetting spring is arranged between a sliding block groove and the sliding block. When the cock rotates by 90 degrees, a medium flows in from a medium inlet, and impact force of the medium pushes the piston to move rightwards to drive the pushing rod to move, so that the pushing rod pushes the sliding block into the sliding block groove; pressure of the medium is buffered due to the fact that the resetting spring contracts under pressure, the channel is opened, and the medium flows out from a medium outlet. When the cock rotates by another 90 degrees, the cock channel is not communicated with the medium inlet, and the resetting spring resets so as to drive the sliding block to reset. The water eliminating hammer cock valve has the advantages of good effect of a water eliminating hammer, simple structure, long service life and the like.

Description

Water hammer plug valve

technical field

The utility model relates to a cock valve, in particular to a water hammer cock valve.

Background technique

The plug valve is a valve that is opened or closed by rotating 90 degrees. In a closed pipeline, when the flow rate of the medium suddenly increases or decreases in a very short period of time, the phenomenon of water hammer will occur. It is usually controlled by valves, faucets or pumps. caused by sudden opening or closing. resulting in damage to components.

Utility model content

The purpose of the utility model is to provide a water hammer elimination cock valve, which has good water hammer elimination effect, simple structure and long practical life.

The utility model adopts the following technical solutions:

The water hammer plug valve consists of a valve body, a valve cover, a valve stem, a cock, a piston, a push rod and a slider.

The valve body and the valve cover are fixedly connected by bolts, and a valve stem is arranged in the valve cover, and the valve stem is connected with the cock, and the rotation of the valve stem drives the rotation of the cock.

There is a channel in the cock, and there is a piston in the channel. One end of the piston is connected with the push rod through a bolt, and the other end of the push rod is connected with the slider. The piston, the push rod and the slider are placed on the In the cock, the return spring is arranged between the slide block groove and the slide block.

When the cock rotates 90 degrees, the medium flows in from the medium inlet, and the momentum of the medium pushes the piston to move to the right, driving the push rod to move, so that the push rod pushes the slider into the slider groove, and the return spring shrinks under pressure to buffer the medium pressure, and the The channel opens and the medium flows out from the medium outlet. When the cock is rotated another 90 degrees, the cock channel is not connected to the medium inlet, and the reset spring resets, thereby driving the slider to reset.

The utility model has the advantages of good water hammer elimination effect, simple structure, long practical life and the like.

Description of drawings

Fig. 1 is a schematic diagram of a full-section structure of the utility model.

Among them: 1. Valve body, 2. Bonnet, 3. Valve stem, 4. Cock, 5. Piston, 6. Push rod, 7. Slider, 8. Return spring, 9. Nut.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The utility model as shown in Figure 1, eliminates water hammer cock valve, is made up of valve body 1, bonnet 2, valve stem 3, cock 4, piston 5, push rod 6 and slide block 7.

The valve body 1 and the valve cover 2 are fixedly connected by bolts, and a valve stem 3 is arranged in the valve cover 2, and the valve stem 3 is connected with the cock 4, and the rotation of the valve stem 3 drives the cock 4 to rotate.

There is a channel in the cock 4, and there is a piston 5 in the channel. The piston 5 is a T-shaped structure. One end of the piston 5 is connected to the push rod 6 by bolts, and the other end of the push rod 6 is connected to the slider 7. , the piston 5, the push rod 6 and the slider 7 are placed in the cock 4 through the nut 9, and the return spring 8 is placed between the slider groove and the slider 7.

When the cock 4 rotates 90 degrees, the medium flows in from the medium inlet, and the momentum of the medium pushes the piston 5 to move to the right, driving the push rod 6 to move, so that the push rod 6 pushes the slider 7 into the slider groove, and the return spring 8 shrinks under pressure The medium pressure is buffered, the channel is opened, and the medium flows out from the medium outlet. When the cock 4 rotates 90 degrees again, the cock channel is not connected to the medium inlet, and the return spring 8 resets, thereby driving the slider 7 to reset.

Claims (1)

1. water hammer stopcock disappears, by valve body (1), valve gap (2), valve rod (3), cock (4) block (5), push rod (6) and slide block (7), formed, it is characterized in that: described cock has a passage in (4), in passage, there is a piston (5), described piston (5) one end is connected with push rod (6), described push rod (6) the other end is connected with slide block (7), by nut (9), piston (5), push rod (6) and slide block (7) are placed in cock (4), Returnning spring (8) is placed between slide block slot and slide block (7).