CN205260902U - Facial make -up wedge type lift ball valve - Google Patents

Abstract

The utility model provides a top-mounted wedge-type lifting ball valve, which includes a main valve body, the main valve body is provided with wedge surfaces on both sides of the corresponding flow passage in the main valve body, and an inner valve body is arranged in the main valve body. The flow channel of the inner valve body is connected with the flow channel of the main valve body, and the two sides of the inner valve body are provided with wedge surfaces matching with the wedge surfaces of the main valve body, and the inner valve body and the main valve body form a sealing fit, so A valve seat is arranged in the inner valve body, and a ball is placed in the valve seat, and the ball is sealed and matched with the valve seat. , On the basis of the wedge valve, the utility model replaces the valve core with the sealing fit between the inner valve body and the ball, uses the wedge surfaces on both sides of the inner valve body to squeeze the wedge surface inside the wedge valve to realize the sealing fit, and replaces the valve core at the same time It is convenient and does not cause residue accumulation.

Description

Top mount wedge lift ball valve

technical field

The utility model relates to a ball valve, in particular to a top mounted wedge type lifting ball valve.

Background technique

Most of the existing ball valves have problems during use, and most of them need to be replaced, and the replacement of the ball is cumbersome. The valve stem needs to be removed from the valve body one by one, which seriously affects the replacement time and reduces the replacement efficiency. The residual residue between the valve body and the valve body will affect the sealing performance of the valve after a long time, and it needs to be disassembled and cleaned.

Utility model content

In order to solve the above deficiencies, the utility model provides a top mounted wedge type lifting ball valve.

The utility model provides: a top-mounted wedge-type lifting ball valve, which includes a main valve body, the main valve body is provided with wedge surfaces on both sides of the main valve body corresponding to the flow channel, and an inner valve body is arranged in the main valve body. The flow channel of the inner valve body communicates with the flow channel of the main valve body, and the two sides of the inner valve body are provided with wedge surfaces matched with the wedge surfaces of the main valve body, and the inner valve body forms a sealing fit with the main valve body, A valve seat is arranged in the inner valve body, and a ball is placed in the valve seat, and the ball is tightly matched with the valve seat. Cooperate, the valve cover is bolted to the main valve body and the inner valve body respectively.

The upper and lower end surfaces on both sides of the inner valve body are respectively provided with seals.

The inner valve body is hard-tightly matched with the valve seat of the main valve body.

The operating mechanism is an operating handle.

Flanges are arranged at both ends of the main valve body.

The valve rod respectively passes through the first valve cover and the second valve cover to cooperate with the operating mechanism, the first valve cover is connected with the main valve body by bolts, and the second valve cover is connected with the inner valve body by bolts.

The flow channels on the sphere are arranged eccentrically.

On the basis of the wedge valve, the utility model replaces the valve core with the sealing fit between the inner valve body and the sphere, uses the wedge surfaces on both sides of the inner valve body to squeeze the wedge surfaces inside the wedge valve to realize the sealing fit, and it is convenient to replace the valve core at the same time , and will not cause the phenomenon of residue accumulation.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the utility model.

detailed description

Below in conjunction with accompanying drawing, the utility model embodiment is further described:

As shown in Figure 1, the utility model discloses a top-mounted wedge-type lifting ball valve, which includes a main valve body 2, and wedge surfaces are arranged on both sides of the main valve body 1 corresponding to the flow channel, and the main valve body 1 is provided with Inner valve body 2, the flow channel of the inner valve body 2 communicates with the flow channel of the main valve body 1, the two sides of the inner valve body 2 are provided with wedge surfaces matching the wedge surfaces of the main valve body 1, the inner valve body 2 The valve body 2 forms a sealing fit with the main valve body 1, and a valve seat 3 is arranged in the inner valve body 2, and a ball 4 is placed in the valve seat 3, and the ball 4 is tightly fit with the valve seat 3, and the ball 4 The upper side cooperates with the valve stem 6, and the valve stem 6 passes through the valve cover to cooperate with the operating mechanism, and the valve cover 7 is respectively connected with the main valve body and the inner valve body by bolts. The valve rod respectively passes through the first valve cover and the second valve cover to cooperate with the operating mechanism, the first valve cover is connected with the main valve body by bolts, and the second valve cover is connected with the inner valve body by bolts. The two ends of the main valve body are provided with flanges, which are fixed to the pipeline through the flanges.

When the utility model needs to be replaced, it is only necessary to directly remove the bolts connecting the first valve cover and the main valve body, and directly pull out the entire inner valve body 2 for replacement, which reduces the difficulty of replacement, and at the same time, the extrusion fit of the wedge surface , can ensure the sealing effect between the inner valve body 2 and the main valve body 1, when the inner valve body is pressed downward, the wedge surface of the inner valve body will press the wedge surface of the main valve body to improve its sealing performance.

The bonnet is connected to the main valve body by bolts, and its inner side is also fixedly connected to the ball valve by bolts. Only the bolts connected to the main valve body can be removed to pull out the entire inner valve body, and the ball valve can be removed if all the bolts are removed. The replacement is convenient and quick.

The upper and lower end surfaces on both sides of the inner valve body are respectively provided with seals 5, and when the inner valve body is subjected to a downward force, it will squeeze the wedge surfaces on both sides, squeeze the seals, and prevent it from leaking up and down.

The inner valve body and the valve seat of the main valve body are hard-sealed, and a hard seal is used between the bottom of the inner valve body and the valve seat of the main valve body to avoid leakage at the bottom.

The operating mechanism is an operating handle. By pulling the operating handle, the sphere can be driven to rotate so as to realize the function of the flow channel switch, and other operating modes can also be used for operation.

The embodiment should not be regarded as limiting the utility model, but any improvement based on the spirit of the utility model should be within the protection scope of the utility model.

Claims (7)

1. a upper dress wedge-type lifting ball valve, it is characterized in that: it comprises main valve body, described main valve body, in main valve body, the both sides of corresponding runner are provided with wedge surface, in described main valve body, inner valve body is set, the runner of described inner valve body is communicated with the runner of main valve body, described inner valve body both sides are provided with the wedge surface matching with the wedge surface of main valve body, described inner valve body and main valve body formation are sealed and matched, in described inner valve body, valve seat is set, in described valve seat, place spheroid, described spheroid coordinates with valve base sealing, upside and the valve rod of described spheroid are linked, described valve rod is linked through valve gap and operating mechanism, described valve gap is connected with main valve body and inner valve body bolt respectively.

2. upper dress wedge-type lifting ball valve according to claim 1, is characterized in that: the upper and lower end face of described inner valve body both sides is respectively equipped with seal, places sealing ring in described seal.

3. upper dress wedge-type lifting ball valve according to claim 1, is characterized in that: the valve seat of described inner valve body and main valve body is sealed and matched firmly.

4. upper dress wedge-type lifting ball valve according to claim 1, is characterized in that, described operating mechanism is operating grip.

5. upper dress wedge-type lifting ball valve according to claim 1, is characterized in that, described main valve body two ends arrange flange.

6. upper dress wedge-type lifting ball valve according to claim 1, it is characterized in that, described valve rod passes respectively the first valve gap and the second valve gap and operating mechanism and is linked, and described the first valve gap is connected with main valve body bolt, and described the second valve gap is connected with inner valve body bolt.

7. upper dress wedge-type lifting ball valve according to claim 1, is characterized in that the runner eccentric setting on described spheroid.