CN220228046U - A kind of valve casting - Google Patents

Abstract

The utility model relates to the technical field of valve castings, and discloses a valve casting. The valve casting includes a shell, a threaded rod is threadedly connected to the upper end of the shell, a rotating disk is fixedly connected to the upper end of the threaded rod, and a receiving groove is provided on the side of the rotating disk. A limited telescopic rod is hinged inside the accommodation tank, and a threaded groove is provided inside the shell. The lower end of the threaded rod is fixedly connected to a threaded column, and the lower surface of the threaded column is fixedly connected to a connecting column. The valve casting is provided with a threaded rod, a threaded groove, and a threaded column. , connecting column, combined with the sealing block, achieves the function of adjusting the sealing block up and down, and solves the problem of serious internal wear and leakage caused by the need for the turntable to rotate back and forth to open and close the valve body. By setting up a receiving tank and a limit The telescopic rod, combined with the limit block, achieves the function of fixing the sealing block, solving the problem of the sealing block being easily raised when the impact of water or air flow is too large.

Description

A kind of valve casting

Technical field

The utility model relates to the technical field of valve castings, specifically a valve casting.

Background technique

Valve is a control component in the fluid conveying system. It is a parameter check valve, regulating valve, etc. used to open and close pipelines, control flow direction, adjust and control the conveyed medium. It has the functions of cut-off, adjustment, diversion, prevention of reverse flow, voltage stabilization, etc. Functions such as shunting or overflow pressure relief are used for valves in fluid control systems. The valve structure mainly uses valve plates, gate plates, valve balls and other structures to achieve a closed seal on the valve body, thereby achieving shut-off during the fluid transportation process. , blocking the passage in the valve body, shutting off the fluid, thereby achieving overall control of the valve.

According to a published Chinese patent with the publication number CN219221315U, in the above application, through the combined use of the gate plate and the middle sleeve plate, as well as the cavity and the side sleeve plate, the valve sealing structure is used to shut down the valve body through the gate plate. During the process, as the gate plate descends, the bottom end of the gate plate docks with the middle sleeve plate, and drives the middle sleeve plate to sink and compress the spring. The hydraulic oil in the cavity is squeezed under the downward pressure of the middle sleeve plate. The side sleeve plate is pushed upward until the side sleeve plate is completely connected with the fixed plate and sealing gasket outside the gate plate. It cooperates with the gate plate to ensure the sealing effect after the middle sleeve plate is moved, thereby ensuring the sealing structure of the valve. The structure of the auxiliary seal is simple, there is no complex transmission structure, and it can have a longer service life.

However, during the actual use of the above equipment, since the turntable needs to rotate back and forth to open and close the valve body, it causes serious internal wear and leakage; in view of this, we proposed a valve casting.

Utility model content

The purpose of this utility model is to provide a valve casting to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solution: a valve casting includes a shell, the upper end of the shell is threadedly connected with a threaded rod, the upper end of the threaded rod is fixedly connected with a rotating disk, and the side of the rotating disk is provided with a The accommodation tank is hinged with a limited telescopic rod inside the accommodation tank, the arc-shaped outer wall of the housing is fixedly connected with a limiting block, a threaded groove is provided inside the housing, and a threaded column is fixedly connected to the lower end of the threaded rod. A connecting column is fixedly connected to the lower surface of the threaded column, and a sealing block is rotatably connected to the lower end of the connecting column.

Preferably, the limiter telescopic rods are provided in several groups, and one end of each of the groups of limiter telescopic rods is hingedly connected to the accommodating groove.

Preferably, the limiting blocks are provided in several groups, and the groups of limiting blocks are uniformly fixedly connected to the outer wall of the housing in a circular array.

Preferably, the threads provided on the arc-shaped outer wall of the threaded column are adapted to the threaded groove, making the rotation of the telescopic rotating disk smoother.

Preferably, the lower end of the connecting column is provided with a rotating block, and the upper end of the connecting column is fixedly connected to the middle part of the threaded column.

Preferably, a rotation groove matching the connecting column is provided inside the sealing block, so that the sealing block can move up and down normally, so that the sealing performance is better.

Compared with the existing technology, the utility model provides a valve casting with the following beneficial effects:

1. In order to avoid serious internal wear and leakage due to the need for the turntable to rotate back and forth to open and close the valve body, this valve casting is provided with a threaded rod, threaded groove, threaded column, connecting column, and a sealing block to achieve a tight seal. The function of adjusting the block up and down solves the problem of leakage caused by serious internal wear due to the need for the turntable to rotate back and forth to open and close the valve body.

2. In order to prevent the sealing block from rising easily when the water flow or airflow impact is too large, the valve casting is provided with a receiving groove, a limit telescopic rod, and a limit block to achieve the function of fixing the sealing block. In order to solve the problem that the sealing block is easy to rise when the impact of water flow or air flow is too large.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional main structure of the utility model;

Figure 2 is a schematic three-dimensional cross-sectional structural diagram of the utility model;

Figure 3 is a partial front structural schematic diagram of the utility model.

In the picture: 1. Housing; 2. Threaded rod; 3. Rotating disk; 4. Accommodating groove; 5. Limiting telescopic rod; 6. Limiting block; 7. Threaded groove; 8. Threaded column; 9. Connecting column ; 10. Sealing block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. For example, based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1-3, the present utility model provides a technical solution: a valve casting, including a shell 1, the upper end of the shell 1 is threadedly connected to a threaded rod 2, and the upper end of the threaded rod 2 is fixedly connected to a rotating disk 3, which rotates A receiving groove 4 is provided on the side of the disk 3, and a limited telescopic rod 5 is hinged inside the receiving groove 4. There are several groups of the limited telescopic rods 5, and one end of the groups of limited telescopic rods 5 is hinged with the accommodating groove 4. The shell 1 arc The outer wall of the housing 1 is fixedly connected with the limiting blocks 6. Several groups of the limiting blocks 6 are provided, and several groups of the limiting blocks 6 are uniformly fixedly connected to the outer wall of the housing 1 in a circumferential array. The accommodating grooves 4 and the limiting telescopic rods 5 are provided. , cooperate with the limit block 6 to achieve the function of fixing the sealing block 10, and solve the problem of the sealing block 10 easily rising when the impact of water flow or air flow is too large. There is a threaded groove 7 inside the housing 1, and the thread The lower end of the rod 2 is fixedly connected to a threaded column 8. The threads provided on the arc-shaped outer wall of the threaded column 8 are adapted to the threaded groove 7. The lower surface of the threaded column 8 is fixedly connected to a connecting column 9. The lower end of the connecting column 9 is provided with a rotating block, and The upper end of the connecting column 9 is fixedly connected to the middle part of the threaded column 8, and the lower end of the connecting column 9 is rotatably connected to a sealing block 10. The sealing block 10 has a rotation groove inside that is adapted to the connecting column 9, and is provided with a threaded rod 2 and a threaded groove 7. , threaded column 8, connecting column 9, and the sealing block 10, achieve the function of adjusting the sealing block 10 up and down, and solve the problem of leakage caused by serious internal wear due to the need for the turntable to rotate back and forth to open and close the valve body.

Working principle: When the valve casting is used, by rotating the rotating disk 3, the threaded column 8 can rotate downward along the threaded groove 7, and then drive the connecting column 9 to move downward. Since the connecting column 9 and the sealing block 10 are rotationally connected, the sealing The block 10 can move downward smoothly and maintain a good sealing effect. When the use of the rotating disk 3 is completed, the limit telescopic rod 5 hinged inside the accommodating groove 4 is stretched and stuck into the gap between the limit blocks 6, and then A fixed effect was achieved.

The above generally describes the present utility model in detail, but on the basis of the present utility model, some modifications or improvements can be made, which is obvious to those of ordinary skill in the technical field. Therefore, any modification or improvement that does not deviate from the spirit of the present utility model is within the protection scope of the present utility model.

Claims (6)

1. A valve casting, including a shell (1), characterized in that: a threaded rod (2) is threadedly connected to the upper end of the shell (1), and a rotating disk (3) is fixedly connected to the upper end of the threaded rod (2). ), the rotating disk (3) has a receiving groove (4) on the side, the receiving groove (4) is hinged with a limited telescopic rod (5) inside, and the arc-shaped outer wall of the housing (1) is fixedly connected with a limiting block (6), a threaded groove (7) is provided inside the housing (1), a threaded column (8) is fixedly connected to the lower end of the threaded rod (2), and a connection is fixedly connected to the lower surface of the threaded column (8). Column (9), the lower end of the connecting column (9) is rotatably connected to a sealing block (10). 2. A valve casting according to claim 1, characterized in that: the limit telescopic rods (5) are provided with several groups, and one end of the several groups of the limit telescopic rods (5) is connected to the receiving end. The slot (4) is hinged. 3. A valve casting according to claim 1, characterized in that: the limit blocks (6) are provided with several groups, and the groups of the limit blocks (6) are in a circumferential array and are evenly spaced with the said limit blocks (6). The outer wall of the housing (1) is fixedly connected. 4. A valve casting according to claim 1, characterized in that: the threads provided on the arc-shaped outer wall of the threaded column (8) match the threaded groove (7). 5. A valve casting according to claim 1, characterized in that: the lower end of the connecting column (9) is provided with a rotating block, and the upper end of the connecting column (9) and the middle part of the threaded column (8) Fixed connection. 6. A valve casting according to claim 1, characterized in that the sealing block (10) is provided with a rotation groove inside the sealing block (10) that matches the connecting column (9).