Concrete delivery pump for preventing concrete backflow in building construction

Abstract

The invention discloses a concrete conveying pump for preventing concrete backflow in building construction, which comprises a concrete conveying pump body, a hopper and a discharge pipe, the hopper is arranged at the right end of the concrete conveying pump body, and a discharge port is fixedly connected to the discharge port of the hopper The inner wall of the discharge pipe is provided with an annular slot, and the right end of the annular slot is provided with a flexible rubber pad, and an anti-backflow plate is arranged between the annular slots, and the anti-backflow plate is connected to the inner wall of the annular slot by a hinge to prevent The surface of the backflow plate is provided with a connection hole, which is in the form of a circular cylinder. The connection hole is set through the outer wall of the anti-reflux plate. The anti-reflux device installed inside the concrete pump body is integrated with the discharge pipe, saving additional The money and time of purchasing other anti-backflow devices, and a dust scraping ring is set on the socket rod inside the discharge pipe. The dust scraping ring uses a blade to remove the concrete on the telescopic rod, which is convenient for the matching connection of the socket rod and the telescopic rod.

Description

Technical field [0001] The present invention relates to the technical field of concrete transport pumps, in particular a concrete delivery pump for preventing concrete reflux. Background technique [0002] Concrete conveying pumps are also known as concrete pumps, which are mechanical transported by pressing concrete along pipelines, composed of pump bodies and conveying tubes, mainly used in housing construction, bridge and tunnel construction, concrete delivery pumps into gate valve concrete Conveying pump and S valve concrete delivery pump, in addition, there is a pump body to form a pump car on a car chassis, a scalable or flexible fabric rod, which is a wide range of applications in which the concrete transport pump is constructed in a wide range of advantages. In the bridge and tunnel construction, it still has the following drawbacks in actual use: [0003] 1. Most of the concrete delivery pump delivers concrete from a high place. When the concrete delivery pump is small o...

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Problems solved by technology

[0003] 1. Concrete delivery pumps mostly deliver concrete to high places. When the pressure of the concrete delivery pump is low or the machine fails, it will inevitably cause the concrete backflow inside the concrete delivery pipe. When the return flow is large, the hopper will be saturated and overflow, resulting in ground and There is a lot of concrete stuck to the body of the concrete pump, which brings a lot of inconvenience to the construction site;

[0004] 2. The traditional concrete delivery pump will install a check valve on the concrete delivery pipeline, but the installation and disassembly of the check valve is relatively cumbersome, and the check valve is a separate supporting equipment. In a messy construction site, it is also difficult to find the check valve. more time wasting

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