CN204827902U - General auto -lock toper check valve - Google Patents

Abstract

The utility model relates to a general self-locking tapered check valve. Affected by the underground water quality of the coal mine, it causes great wear and tear to the check valve. The universal self-locking tapered check valve includes a shell and a valve core. The protruding end of the shell is respectively provided with an inlet pipe and an outlet pipe. There are also two conical valve plug shaft sleeves inside the housing, and there are two cone-shaped valve plug shaft sleeves on which there are multiple water holes; the valve core includes a conical valve plug, a pressure spring, two A conical valve plug shaft sleeve, the water inlet pipe, the conical valve plug, the pressure spring, and the two conical valve plug shaft sleeves are arranged coaxially, one end of the conical valve plug is tapered, and its tip extends into At the plugging end of the water inlet pipe, the other end of the conical valve plug is cylindrical, forming a conical valve plug shaft. The conical valve plug shaft passes through the pressure spring and the two taper valve plug shaft sleeves successively. The utility model has both vertical and horizontal functions and self-locking properties, and is widely applicable to various drainage operations.

Description

Universal self-locking cone check valve

technical field

The utility model relates to a check valve, in particular to a general self-locking tapered check valve.

Background technique

At present, in the drainage system of the mine, due to the influence of the underground water quality of the coal mine, the sewage pumped out by the drainage pump room is mixed with particles such as coal slime and cinder, which cause great wear and tear to the check valve. Especially when the joint surface of the valve part of the check valve is mixed with particles such as coal slime and coal slag in the extracted water, the valve in the check valve will wear quickly. When the water pump stops draining, the water in the drain pipe is backflowed due to the leakage of the check valve, which reduces the drainage efficiency. If the check valve leaks seriously, the water pump suddenly stops running for some reason or the gate valve is not closed to stop the pump, the high-pressure water in the drain pipe will rush down and damage the water pump, which will lead to electromechanical accidents and bring many problems to the mine: 1. It is to increase the maintenance workload and invest a lot of manpower to repair and replace the check valve and water pump; the second is to reduce the economic operation index of drainage equipment; the third is to bring huge pressure to safety and affect the safe drainage of mines.

Utility model content

The technical problem to be solved by the utility model is how to overcome the above-mentioned defects of the prior art and provide a universal self-locking cone check valve.

In order to solve the above-mentioned technical problems, the universal self-locking cone check valve includes a shell and a valve core. The protruding ends of the two hemispherical shells are respectively provided with water inlets and water outlets. The water inlets and water outlets of the shell extend to both ends respectively to form water inlet pipes and water outlet pipes. The inside extends to form the plugging end of the water inlet pipe. The hemispherical shell connected to the water outlet pipe is also provided with a cone-shaped valve plugging shaft sleeve frame. There are two cone-shaped valve plugging shaft sleeve frames. water hole; the spool includes a conical valve plug, a pressure spring, and two conical valve plug sleeves, and the water inlet pipe, the conical valve plug, the pressure spring, and the two conical valve plug shaft sleeves form a coaxial Arrangement, one end of the conical valve plug is conical, and its tip extends into the plugging end of the water inlet pipe, and the other end of the conical valve plug is cylindrical, forming a conical valve plug shaft, which passes through the Pressure spring and two cone-shaped valve plug sleeves, the two cone-shaped valve plug sleeves are fixedly connected to the two cone-shaped valve plug sleeve frames, and the cone-shaped valve plug sleeves are perpendicular to the cone-shaped valve plug sleeves shelf. The water hole can be a circular hole, a fan-shaped hole or a through hole of other shapes, as long as it does not affect the water flow.

This design, when in use, install the universal self-locking cone check valve at the original check valve position, when the water pump is turned on, the water flow enters from the water inlet, when the pressure of the water flow is greater than the pressure spring (the pressure of the pressure spring is slightly greater than that of the cone valve block its own gravity), directly open the cone valve, and the water flows out through the universal self-locking cone check valve shell; when the water pump stops, the pressure spring inside the universal self-locking cone check valve restores the initial tension and will The tapered valve plug is blocked at the mouth of the steel pipe along the axis of the water inlet pipe, cutting off the water flow in the drainage pipe. The pressure spring inside the universal self-locking conical check valve is not restricted by horizontal or vertical use, and can play a self-locking role in the drainage pipeline, and the conical valve is blocked under the action of the pressure spring, using its conical Features, automatic alignment, prevent water leakage and backflow from damaging drainage equipment, and provide guarantee for safe drainage of mines.

The water inlet pipe and the water outlet pipe can be welded together with the flange and the shell or processed as a whole, and the cone valve plug shaft sleeve is welded on the internal shell of the universal self-locking cone check valve.

As an optimization, the water inlet and outlet are further provided with flanges. Such a design makes it easy to install and use.

As an optimization, a sealing gasket is provided at the junction of the flanges connecting the two hemispherical shells. With such a design, it has good sealing performance and is easy to use.

The universal self-locking tapered check valve of the utility model has vertical and horizontal functions and self-locking properties, is safe and reliable, has a simple structure, is convenient to install and use, and has little maintenance, avoids the hidden danger of medium leakage, improves the performance of the check valve, and avoids It eliminates the potential safety hazard of mechanical equipment damage due to medium leakage and backflow of the check valve, greatly reduces workload and accidents, and is widely used in various drainage operations.

Description of drawings

The general self-locking tapered check valve will be further described below in conjunction with the accompanying drawings:

Fig. 1 is a schematic diagram of the cross-sectional structure of the cross-axis of the first embodiment of the universal self-locking conical check valve;

In the figure: 1 is the shell, 2 is the flange, 3 is the water inlet, 31 is the water inlet pipe, 4 is the water outlet, 41 is the water outlet pipe, 5 is the sealing end of the water inlet pipe, 6 is the cone valve plug bushing Frame, 61 are water holes, 7 are taper valve plugs, 71 are taper valve plug shafts, 8 are pressure springs, 9 are taper valve plug shaft sleeves, and 10 is sealing pads.

Detailed ways

Embodiment 1: As shown in Figure 1, the universal self-locking cone check valve includes a housing 1 and a valve core, the housing is spherical and consists of two hemispherical housings connected by a flange 2, The protruding ends of the two hemispherical housings 1 are respectively provided with a water inlet 3 and a water outlet 4, and the housing 1 extends to both ends at the water inlet 3 and the water outlet 4 respectively to form a water inlet pipe 31 and a water outlet pipe 41. The end of the water inlet pipe 31 extends to the inside of the housing 1 to form a water inlet pipe plugging end 5, and the inside of the hemispherical housing 1 connected to the water outlet pipe is also equipped with a conical valve plugging shaft sleeve 6. There are two valve plug shaft sleeve frames 6, which are provided with a plurality of water holes 61; the valve core includes a tapered valve plug 7, a pressure spring 8, two tapered valve plug shaft sleeves 9, and the water inlet pipe 31, conical valve plug 7, pressure spring 8, and two conical valve plug sleeves 9 are coaxially arranged. One end of the conical valve plug 7 is conical, and its tip extends into the water inlet pipe plugging end 5. The other end of the cone-shaped valve plug 7 is cylindrical, forming a cone-shaped valve plug shaft 71. The cone-shaped valve plug shaft 71 passes through the pressure spring 8 and two cone-shaped valve plug sleeves 9 successively. The valve plug shaft sleeve 9 is fixedly connected on two conical valve plug shaft sleeve frames 6, and the conical valve plug shaft sleeve 9 is perpendicular to the tapered valve plug shaft sleeve frame 6. The inlet pipe 31 and the outlet pipe 41 are also provided with flanges 2 . A gasket 10 is also provided at the junction of the flanges 2 connecting the two hemispherical shells 1 .

Claims (3)

1. a general self-locking taper check valve, comprise housing and spool, it is characterized in that: described housing is spherical in shape, connected by two hemispheric housing flange plate and form, described two hemispheric case protrusion ends have water intake and water outlet, described housing extends to form intake pipe and outlet pipe at water intake and water outlet respectively to two ends, described intake pipe end extends to form intake pipe shutoff end to enclosure interior again, the hemispherical shell inside be connected with outlet pipe is also provided with mitre velve and blocks up axle sleeve frame, described mitre velve blocks up axle sleeve frame two, which is provided with multiple water passage hole, described spool comprises that mitre velve is stifled, pressure spring, two mitre velves block up axle sleeve, described intake pipe is stifled with mitre velve, pressure spring, two mitre velves block up axle sleeve and become coaxial line to arrange, it is tapered that described mitre velve blocks up one end, intake pipe shutoff end is stretched at its tip, it is cylindrical that mitre velve blocks up the other end, form mitre velve and block up axle, described mitre velve blocks up axle and successively blocks up axle sleeve through pressure spring and two mitre velves, described two mitre velves block up axle sleeve and are connected in two mitre velves and block up on axle sleeve frame, and mitre velve blocks up axle sleeve and blocks up axle sleeve frame perpendicular to mitre velve.

2. general self-locking taper check valve as claimed in claim 1, is characterized in that: described water inlet pipe mouth and effluent pipe mouth are also provided with flange plate.

3. general self-locking taper check valve as claimed in claim 2, is characterized in that: the flange plate connecting part of described connection two hemispherical shells is also provided with sealing gasket.