Feces discharge valve of fecal suction truck

Abstract

The utility model particularly relates to a fecal discharge valve of a fecal suction truck, and belongs to the technical field of release valves with spiral shafts. Comprising an upper perforated plate, a lower perforated plate and a valve body, the upper perforated plate is mounted on an upper hole formed in the top of a tank body of the fecal suction truck; the lower perforated plate is fixedly connected with a first connecting flange plate welded on a lower hole formed in the bottom of the tank body; one end of the valve body is fixedly connected with the upper perforated plate, and the other end of the valve body extends into the tank body; a lead screw and a nut which are matched with each other are arranged in the valve body; one end of the lead screw extends out of the upper perforated plate and is connected with a handle; the other end of the lead screw extends out of the valve body and is connected with a valve plug; the valve plug is an inverted frustum with a narrow lower part and a wide upper part; a sealing ring groove is formed in the periphery of the lower perforated plate, and a sealing ring is arranged in the sealing ring groove. The handle rotates to drive the lead screw to descend, so that the two side faces of the valve plug connected with the lead screw enter the lower open hole to abut against and extrude the sealing ring to seal the open hole in the bottom of the tank body, and leakage at the open hole in the bottom of the tank body in the running process of the fecal suction truck is greatly reduced.

Description

Technical Field

[0001] The utility model specifically relates to a feces discharge valve of a feces suction truck, and belongs to the technical field of release valves with spiral shafts (F16K31 / 50). Background Art

[0002] Different cities and regions often require different fecal discharge valves due to different usage habits or discharge valve docking methods. Some fecal discharge valves require holes to be opened at the top and bottom of the liquid tank during installation. The fecal discharge valve is inserted into the liquid tank through the top of the liquid tank, and then the fecal discharge valve cooperates with the hole at the bottom of the liquid tank so that the hole at the bottom of the liquid tank is opened when drainage is required and closed when drainage is not required. During the driving of the fecal suction truck, the liquid in the tank body vibrates with the movement of the vehicle. At this time, although the fecal discharge valve is in a closed state, liquid will still leak from the hole at the bottom of the tank body, causing environmental pollution. Summary of the invention

[0003] The technical problem to be solved by the utility model is: how to reduce leakage at the bottom opening of the tank body of the feces suction vehicle when the feces discharge valve is closed.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a feces discharge valve of a feces suction truck, comprising an upper perforated plate, a lower perforated plate and a valve body; the upper perforated plate is installed on the upper perforated plate opened on the top of the tank body of the feces suction truck; the lower perforated plate is fixedly connected to the first connecting flange plate welded on the lower perforated plate opened at the bottom of the tank body; one end of the valve body is fixedly connected to the upper perforated plate, and the other end of the valve body extends into the tank body; a matching lead screw and nut are arranged in the valve body; one end of the lead screw extends out of the upper perforated plate and is connected to a handle, and the other end of the lead screw extends out of the valve body and is connected to a valve plug; the valve plug is an inverted cone with a narrow bottom and a wide top; a sealing ring groove is arranged on the circumference of the lower perforated plate, and a sealing ring is arranged in the sealing ring groove; the valve plug has two states of pressing against and squeezing the sealing ring to form a seal and moving away from the sealing ring to form a gap as the lead screw moves up and down.

[0005] Furthermore, a second connecting flange plate is welded outwardly of the upper opening, and the upper cover is connected to the second connecting flange plate by bolts, so that the upper cover is installed on the upper opening.

[0006] Beneficial effects: The utility model opens a hole at the bottom of the tank body of the dung suction truck, and a lower hole plate is connected to the first connecting flange plate welded outwardly on the bottom hole, and a groove for placing a sealing ring is opened on the lower hole plate; a sealing ring is fixed between the lower hole plate and the first connecting flange plate; the screw is driven down by rotating the handle, so that the two side surfaces of the valve plug connected to the screw enter the lower hole and squeeze the sealing ring to achieve the sealing of the bottom hole of the tank body, which greatly reduces the leakage at the bottom hole of the tank body during the driving of the dung suction truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The utility model is a schematic diagram of the working of a feces discharge valve of a feces suction truck.

[0008] Figure 2 It is the structure and partial cross-sectional view of the valve body in the feces discharge valve. DETAILED DESCRIPTION

[0009] The following is a further description of the feces discharge valve of the feces suction vehicle of the utility model in combination with the accompanying drawings and specific embodiments. Example

[0010] The feces discharge valve of the feces suction truck in this embodiment has an upper opening and a lower opening respectively on the top and bottom of the tank body of the feces suction truck, the center points of the upper opening and the lower opening are collinear, and the center lines of the upper opening and the lower opening are perpendicular to the ground; a second connecting flange is welded at the upper opening; and a first connecting flange is welded at the lower opening.

[0011] like Figure 1 As shown, the feces discharge valve comprises an upper perforated plate 1, a lower perforated plate 2 and a valve body 3; the upper perforated plate 1 is connected to the second connecting flange plate by bolts, so that the upper perforated plate is installed on the upper opening; the lower perforated plate 2 is fixedly connected to the first connecting flange plate.

[0012] One end of the valve body 3 is fixedly connected to the upper perforated plate 1, and the other end of the valve body 3 extends into the tank body; Figure 2 As shown, a matching lead screw 31 and a nut 32 are arranged in the valve body 3; one end of the lead screw 31 extends out of the upper perforated plate 1 and is connected to a handle 4, and the other end of the lead screw 31 extends out of the valve body 3 and is connected to a valve plug 5; the valve plug 5 is an inverted cone that is narrow at the bottom and wide at the top; a sealing ring groove is arranged around the lower perforated plate 1, and a sealing ring 6 is arranged in the sealing ring groove.

[0013] The handle 4 is rotated counterclockwise, thereby driving the screw 31 to rotate and descend in the valve body 3. When the valve plug 5 connected to the screw 31 extends into the lower perforated plate 1 and abuts against the sealing ring 6, the feces discharge valve is in a closed state.

[0014] The handle 4 is rotated clockwise, thereby driving the lead screw 31 to rotate and rise in the valve body 3. When the valve plug 5 connected to the lead screw 31 leaves the lower opening, the feces discharge valve is in an open state.

[0015] The present invention is not limited to the above-mentioned embodiments. Any technical solution formed by equivalent replacement shall be implemented within the protection scope required by the present invention.

Claims

1. A feces discharge valve for a feces suction truck, characterized in that: It comprises an upper perforated plate, a lower perforated plate and a valve body; the upper perforated plate is mounted on the upper perforated plate opened on the top of the tank body of the fecal suction truck; the lower perforated plate is fixedly connected to a first connecting flange plate welded to the lower perforated plate opened on the bottom of the tank body; one end of the valve body is fixedly connected to the upper perforated plate, and the other end of the valve body extends into the tank body; a matching lead screw and nut are arranged in the valve body; one end of the lead screw extends out of the upper perforated plate and is connected to a handle, and the other end of the lead screw extends out of the valve body and is connected to a valve plug; the valve plug is an inverted cone which is narrow at the bottom and wide at the top; a sealing ring groove is arranged on the circumference of the lower perforated plate, and a sealing ring is arranged in the sealing ring groove; as the lead screw moves up and down, the valve plug has two states of pressing against and squeezing the sealing ring to form a seal and moving away from the sealing ring to form a gap.

2. The feces discharge valve of the feces suction truck according to claim 1 is characterized in that: A second connecting flange plate is welded outwardly of the upper opening, and the upper cover is connected to the second connecting flange plate by bolts, so that the upper cover is installed on the upper opening.

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