JP3044333U - Pneumatic control valve for tank truck - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an air control valve for a tank truck. SOLUTION: When a gas is sent into the spherical valve box 10 from an air valve 40 provided in the abdominal part of the spherical valve box 10, a tube made of a rubber material is communicated with a discharge pipe for the transportation material of a tank truck, which is inside thereof. The shaped valve body 20 is compressed and compressed toward the center, and is stretched in the axial direction so that the passage can be blocked.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a spherical valve box for opening and closing a cylindrical valve body made of an elastic material, which is installed in a discharge pipe of a tank truck for transporting powdery or granular substances, and is particularly provided in the spherical valve box. It is designed to be controlled by blowing air into the valve and discharging air from the spherical valve box, and it is possible to perform instantaneous control and prevent powdery or granular substances from clogging the valve. The challenge is to provide an air-controlled valve.

[0002]

[Prior art]

 There are two methods for transporting powdered and granular materials such as powdery cement for construction, fertilizer for domestic use, feed, etc., in which packages are transported, and in tank trucks.The former is packaged one by one. Therefore, it is easy to transport by human power, and the latter is suitable for providing the required amount according to the situation of the destination and for transporting the raw material that needs to be further processed. To release the contents in the tank of a tank truck, a ball valve is used, which combines two symmetrically shaped members into one cylindrical valve box, in which the ball valve is inserted. The ball valve holds two ends of the ball valve with two ring-shaped holding members, and the operation part for controlling the valve is operated by operating the bolt. It was intended to cut off the passage. However, the valve of such a well-known tank truck is momentarily turned while the ball valve receives the resistance of the flowing material, so that the wear between the ball valve and its holding member is accelerated. It was In addition, the valve of a well-known tank lorry vehicle is liable to be clogged with powdery or granular substances between the ball valve and the valve body, and the ball valve may become inoperable.In that case, remove it and newly install it. Not only was the time required to replace the entire valve, which was expensive. As mentioned above, the valve of the known tank truck was not ideal.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a kind of pneumatic control valve for a trolley vehicle, which can instantly open and close the valve body by an air control method.

Further, the present invention is a pneumatic control valve for a tank lorry vehicle, wherein there is no place between the valve body and the valve box where powdery or granular substances are likely to accumulate, and the valve body can always be opened and closed at an instant. The next task is to create a state.

Furthermore, the present invention provides an air control valve for a tank truck, wherein the valve body is made of an elastic material and has a cylindrical shape, and the valve body is in the form of powder or granules in a valve box. It is an object of the present invention to form a passage for a substance, and to block or open the passage by blowing air into the valve box and discharging the air from the valve box.

According to the present invention, in the air-controlled valve for a tank truck, the tubular valve body is compressed in an arc shape toward the center by blowing air, and is stretched in the axial direction. The issue is to be able to block the above passages.

[0007]

[Means for Solving the Problems]

 According to the invention of claim 1, two hemispherical cases are joined together and welded to each other, and the abdomen of one spherical valve box 10 is formed as a cylindrical sphere having a spherical space inside and an opening penetrating left and right. One air valve 40 is provided in each of the spherical valve box 10, and two mounting seats 11 and 12 are welded around the openings on both the left and right sides of the spherical valve box 10 around the central hole to form one rubber-made cylindrical valve body. 20 is inserted into the spherical valve box 10 in the horizontal direction, and flanges 21 and 22 provided on the left and right ends of the tubular valve body 20 are provided around the central hole on the outer surface of the left and right mounting seats 11 and 12. The tubular valve body 20 is fitted so as to fit in the provided annular groove so as to penetrate through the spherical valve box 10, and is fixed by welding on the left and right sides of the discharge pipe near the conically reduced ends of the discharge pipe. Seats 30 and 31 can be attached with screws. 1 and 12, the conical end of the discharge pipe enters the inner part of the flange of the tubular valve body 20 to press and clamp the flange in cooperation with the mounting seats 11 and 12. There is an air control valve for tank trucks that can be opened and closed by letting air in and out of the spherical valve box 10 via an air valve.

According to the second aspect of the present invention, by blowing air from the air valve 40 into the spherical valve box 10, the tubular valve body 20 is compressed and compressed toward the center, and is axially directed. The tubular valve body 20 is stretched, the discharge path of the transportation material of the tank truck is blocked, and the air in the spherical valve box 10 is discharged from the air valve 40, whereby the cylindrical valve body 20 is restored to its original state by its elastic recovery force. The air-controlled valve for a tank truck according to claim 1, wherein the discharge path for the transportation material is opened.

[0009]

[Embodiment of the invention]

 As shown in FIGS. 1 to 6, an air-controlled valve of a tank truck of the present invention comprises a spherical valve box 10, a tubular valve body 20, a fixed seat 30 and an air valve 40, in which the spherical valve box. Numeral 10 is a cylindrical spherical body having two hemispherical cases joined together and welded to each other, and a spherical space is provided inside to form an opening penetrating left and right, and an air valve 40 is provided at the abdomen of the spherical valve box 10. The two mounting seats 11 and 12 are welded around the openings on both the left and right sides around the central hole, and one cylindrical valve body 20 is inserted horizontally into the spherical valve box 10. The flanges 21 and 22 provided on both the left and right ends of the tubular valve body 20 are fitted into the annular grooves provided on the outer surfaces of the left and right mounting seats 11 and 12 around the central hole to transport the left and right sides. It near the conically reduced end of the pipe The welded fixed seats 30 and 31 are joined to the mounting seats 11 and 12 with screws, and the conical end of the discharge pipe enters the inner part of the flange of the tubular valve body 20 to attach the seats 11. , 12 together with the flanges by pressing and pinching, it is said to be attached to the discharge pipe of the tank truck.

The cylindrical valve body 20 is made of a material having a rubber material, and is arranged so as to penetrate through the spherical valve body 10. The flanges 21 and 22 at both ends of the cylindrical valve body 20 are provided on both left and right sides of the spherical valve body 10. The fixing sheets 30 and 31 which are locked to the annular grooves 13 and 14 on the outer side surfaces of the mounting sheets 11 and 12 and are welded near the ends of the left and right discharge pipes 33 are connected to the respective mounting sheets 11 and 12 with screws. Then, the conical end of the discharge pipe enters the inner portion of the flange of the tubular valve body 20 and presses and clamps the flange in cooperation with the mounting seats 11 and 12, so that the discharge pipe has a cylindrical shape. A spherical valve box 10 having a valve body 20 incorporated therein is interposed, and a passage for one powdery or granular substance is formed by the discharge pipes on both sides and the cylindrical valve body 20 in the spherical valve box 10. When gas is sent into the spherical valve box 10 from the air valve 40 provided at the abdomen of the spherical valve box 10, the cylindrical valve body 20 inside is compressed and compressed toward the center, as well as in the axial direction. It is stretched toward and blocks the passage. When the gas in the spherical valve box 10 is discharged from the air valve 40, the cylindrical valve body 20 returns to the original cylindrical shape due to its elastic recovery force, and the powder or granules of the discharge pipe are passed through the cylindrical valve body 20. The release of particulate matter is restarted.

[0011]

[Effect of the invention]

 INDUSTRIAL APPLICABILITY The present invention is installed in a tank truck that transports powdery or granular substances, and is easy to implement due to its simple structure. A spherical valve box 10 is installed in a discharge pipe using a pneumatic tool. By simply sending air into the inside, the cylindrical valve body 20 communicating with the discharge pipe is compressed toward the center in the spherical valve box 10 and is expanded in the axial direction to form a passage for powdery or granular substances. It can be shut off, its simple combination structure makes it easy to maintain, and it can be easily repaired and replaced, which prevents the extra cost of transporting powdery or granular materials. It is very practical and has industrial utility value.

[Brief description of the drawings]

FIG. 1 is a view showing a mounting position of a tank truck of the present invention.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a cross-sectional view after the combination of the present invention.

FIG. 4 is a cross-sectional view showing an operation when air is blown into the spherical valve box of the present invention.

FIG. 5 is a perspective view showing an operation when air is released from the spherical valve box of the present invention.

[Explanation of symbols]

 10 Spherical valve box 20 Cylindrical valve body 30, 31 Fixed seat 40 Air valve 11, 12 Mounting seat 21, 22 Flange 33 Conical end of discharge pipe

Claims (2)

[Utility model registration claims] 1. Two spherical hemispherical cases are merged and welded together to form a cylindrical spherical body having a spherical space inside and an opening penetrating left and right. An air valve 40 is provided, and two mounting seats 11 and 12 are welded around the openings on both the left and right sides of the spherical valve box 10 around the central hole thereof, so that one tubular valve body 20 made of a rubber material is horizontal. Flanges 2 which are inserted in the spherical valve box 10 in the direction and are provided at both left and right ends of the tubular valve body 20.
1, 22 are the outer surfaces of the left and right mounting sheets 11, 12,
The tubular valve body 20 is fitted so as to penetrate through the spherical valve box 10 by being fitted in an annular groove provided around the central hole, and is provided near the conically reduced ends of the left and right discharge pipes, respectively. The welded fixed seats 30, 31 are screwed to the respective mounting seats 11, 12 so that the conical end of the discharge pipe enters the inner part of the flange of the tubular valve body 20 and the mounting seats 11, 12. An air-controlled valve for a tank truck, which is designed to press and hold the flange together with 12 and can be opened and closed by letting air in and out of the spherical valve box 10 via an air valve. 2. The tank lorry vehicle, wherein the air is blown into the spherical valve box 10 from the air valve 40, so that the tubular valve body 20 is compressed and compressed toward the center and stretched in the axial direction. By shutting off the discharge path of the transportation material and discharging the air in the spherical valve box 10 from the air valve 40, the cylindrical valve body 20 is restored to its original state by its elastic recovery force and the discharge path of the transportation material is changed. The air-controlled valve for a tank truck according to claim 1, wherein the valve is an open valve.