Shielding device for feed port of concrete tank truck

Abstract

The utility model discloses a shielding device for a feed port of a concrete tank truck. The shielding device comprises a rotating cylinder, a rotating stand and rainproof cloth, the rotating cylinder is fixedly mounted on one side of a feeding port of the concrete tank truck, a rotating head of the rotating cylinder is fixedly connected with the rotating frame, the rotating frame is covered with the rainproof cloth, the orthographic projection area of the rainproof cloth is larger than that of the feeding port of the tank truck, and the rotating frame is driven by the rotating cylinder to horizontally rotate above the feeding port of the tank truck to open or close the feeding port. The device can effectively prevent rainwater from falling into the tank car in the transportation process, the concrete quality is guaranteed, and feeding and discharging of the tank car are not hindered.

Description

Technical Field

[0001] This utility model relates to the field of concrete equipment technology, specifically to a shielding device for the feed inlet of a concrete mixer truck. Background Technology

[0002] Concrete mixer trucks, also known as concrete pump trucks, are specialized vehicles for transporting concrete. Used in conjunction with concrete pumps at construction sites, they continuously deliver concrete to the pouring point, achieving high efficiency and mechanization in concrete delivery. For ease of loading and unloading, the inlet (which is also the outlet) of existing concrete mixer trucks is generally open. To prevent rainwater from entering through the inlet and affecting concrete quality during rainy weather, concrete production companies typically cover the inlet with a tarpaulin before the truck leaves the station and remove it manually after the transport is completed. However, this method presents safety hazards, including a heavy workload for operators and the risk of falls while climbing. Utility Model Content

[0003] To solve the above problems, this utility model provides a shielding device for the feed inlet of a concrete mixer truck.

[0004] The technical solution adopted in this utility model is:

[0005] A concrete mixer truck inlet shielding device includes a rotary cylinder, a rotating frame, and a rainproof cloth. The rotary cylinder is fixedly installed on one side of the concrete mixer truck inlet. The rotating frame is fixedly connected to the rotating head of the rotary cylinder. The rainproof cloth is covered on the rotating frame. The projected area of ​​the rainproof cloth is larger than the projected area of ​​the concrete mixer truck inlet. The rotating frame is driven by the rotary cylinder to rotate horizontally above the concrete mixer truck inlet to open or close the inlet.

[0006] Furthermore, the rotary cylinder is connected to a solenoid valve via an air pipe, and the solenoid valve is used to control the intake and exhaust of the rotary cylinder.

[0007] Furthermore, the solenoid valve is connected to a power switch via a wire, and the power switch is located in the cab of the concrete mixer truck.

[0008] Furthermore, the rotating frame includes a connecting part and a shielding part. The connecting part is used to connect the rotary cylinder, and the shielding part is used to install a rainproof cloth.

[0009] Furthermore, the shape of the shield is adapted to the shape of the tanker truck's feed inlet.

[0010] Furthermore, the rainproof cloth is fixed to the upper side of the shielding part with screws, and its lower end hangs naturally from all sides of the shielding part.

[0011] The beneficial effects of this utility model are:

[0012] 1. By installing a shielding device, rainwater can be effectively prevented from falling into the concrete tanker during transportation, thus ensuring the quality of the concrete.

[0013] 2. By setting up a rotatable shielding device, the loading and unloading of the tank truck is not affected.

[0014] 3. The feed inlet is opened or closed by using a cylinder to drive the rotating frame, which is simple in structure and highly reliable. Attached Figure Description

[0015] Figure 1 This is an installation structure diagram of the concrete mixer truck inlet shielding device of this application.

[0016] Figure 2 This is a structural diagram of the rotating frame of the shielding device. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solution of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred embodiment.

[0018] See Figures 1-2 A concrete mixer truck inlet shielding device includes a rotary cylinder 1, a rotating frame 2, and a rainproof cloth 3. The rotary cylinder 1 is fixedly installed on the side of the concrete mixer truck inlet near the truck body by screws. The rotating head of the rotary cylinder 1 extends vertically upward and is fixedly connected to the rotating frame 2. The rotating frame 2 is covered with the rainproof cloth 3. The projected area of ​​the rainproof cloth 3 is larger than the projected area of ​​the concrete mixer truck inlet. The rotating frame 3 is driven by the rotary cylinder 1 to rotate horizontally above the concrete mixer truck inlet, opening or closing the inlet.

[0019] Preferably, the rotary cylinder 1 is connected to a solenoid valve 5 via an air pipe 4. The solenoid valve 5 is installed on the base of the concrete mixer truck near the driver's cab and is connected to a power switch (not shown in the figure) via a wire. The power switch is located in the driver's cab of the concrete mixer truck for easy operation. The power switch controls the reversal of the solenoid valve, which in turn controls the rotation of the rotary head, thereby driving the rotating frame and the rainproof cloth to rotate 180° above the feed inlet to open or close the feed inlet. Opening the feed inlet means that the feed inlet is fully exposed to facilitate material feeding and discharging; closing the feed inlet means that the feed inlet is covered by the rainproof cloth 3 to prevent rainwater from entering during transportation. To avoid frictional interference, there is a distance between the feed inlet and the rotating frame 2, which is covered by the rainproof cloth 3 hanging down from the side.

[0020] The rotating frame 2 comprises two parts: a connecting part and a shielding part. Specifically, the connecting part is rectangular and can be made of steel plate of a certain thickness. Holes 211 are opened on the steel plate. A mounting plate is fixedly connected to the rotating head of the rotary cylinder 1. Threaded holes are opened on the mounting plate. The rotating frame 2 is threadedly connected to the cylinder mounting plate by screws passing through the holes 211. The shape of the shielding part is consistent with the tanker truck's feed inlet. In this embodiment, the shielding part is a combination of rectangle and semicircle. The shielding part is a planar frame made of profiles. In this embodiment, it includes a main rib 221 and a side rib 224 made of square steel. The main rib 221 and the side rib 224 are connected to form a T-shape, forming the main load-bearing part of the rotating frame 2. The middle part of the side rib 224 is welded to the connecting part. It also includes surrounding ribs 222 around the ends of the main rib 221 and the side rib 224, and reinforcing ribs 223 connecting the surrounding ribs 222 and the main rib 221. The surrounding ribs 222 and the reinforcing ribs 223 form a stable support for fixing the rainproof cloth. In this embodiment, the starting and ending sections of the retaining rib 222 are straight, while the middle section is arc-shaped to match the shape of the feed inlet. The retaining rib 222 and the reinforcing rib 223 can be made of angle steel to reduce the overall weight of the device. There are four reinforcing ribs 223, which are connected in pairs to the starting and ending sections of the retaining rib 222. Rainproof cloth mounting holes 2221 are provided on the side ribs 224 and the retaining rib 222 for fixing the rainproof cloth.

[0021] The profiles used to manufacture the rotating frame 2 are preferably made of stainless steel to prevent corrosion from rainwater.

[0022] The rainproof cloth 3 is cut into a shape that is basically the same as the shielding part, and its plane dimension extends about 10-20cm beyond the edge of the shielding part, so that after installation, the rainproof cloth 3 can naturally hang down a distance around the shielding part to prevent rain from entering from the side.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications are also within the protection scope of the present utility model.

Claims

1. A shielding device for the inlet of a concrete mixer truck, characterized in that, It includes a rotary cylinder, a rotating frame, and a rainproof cloth; the rotary cylinder is fixedly installed on one side of the concrete mixer truck's feed inlet, and the rotating frame is fixedly connected to the rotating head of the rotary cylinder. The rotating frame is covered with a rainproof cloth, and the projected area of ​​the rainproof cloth is larger than the projected area of ​​the concrete mixer truck's feed inlet. The rotating frame is driven by the rotary cylinder to rotate horizontally above the concrete mixer truck's feed inlet to open or close the feed inlet.

2. The concrete mixer truck inlet shielding device according to claim 1, characterized in that, The rotary cylinder is connected to a solenoid valve via an air pipe. The solenoid valve is used to control the intake and exhaust of the rotary cylinder.

3. A concrete mixer truck inlet shielding device according to claim 2, characterized in that, The solenoid valve is connected to a power switch via a wire, and the power switch is located in the cab of the concrete mixer truck.

4. A concrete mixer truck inlet shielding device according to claim 1, characterized in that, The rotating frame includes a connecting part and a shielding part. The connecting part is used to connect the rotary cylinder, and the shielding part is used to install a rainproof cloth.

5. A concrete mixer truck inlet shielding device according to claim 4, characterized in that, The shape of the shield is adapted to the shape of the tanker truck's feed inlet.

6. A concrete mixer truck inlet shielding device according to claim 5, characterized in that, The rainproof cloth is fixed to the upper side of the shelter with screws, and its lower end hangs down naturally from all sides of the shelter.

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