pile driver

Abstract

The invention relates to a pile driver. The existing pile driver is usually heavy and can be normally operated by two or even more people, and an air source is very inconvenient to install and carry. The invention provides the pile driver, which comprises a box body, a lifting handle, an air cylinder, a piston, a striking hammer, a casing, a crankshaft, a connecting rod and a transmission device. The pile driver is characterized in that the pile driver further comprises an iron anvil and an iron anvil holder, the iron anvil comprises a striking part and a body used for being fit with the casing, a through hole fit with the striking part is formed in the iron anvil holder, the striking part of the iron anvil penetrates through the through hole and is fit with the striking hammer, and the body is limited by the iron anvil holder; a No.1 hole, a No.2 hole and a No.3 hole are sequentially formed in the air cylinder from bottom to top, an air passage is formed in the box body, and the No.1 hole, the No.2 hole and the No.3 hole are communicated with the air passage. The pile driver has the advantages that the structure is simple, the design is reasonable, the striking force of the striking hammer is great, the vibration is small, the operation comfort is good and the service life of sealing pieces is long.

Description

technical field [0001] The invention relates to a pile driver, which can quickly plant wood piles and steel columns (pipes), and is a mechanical device for gardens. Background technique [0002] In landscaping, in order to protect the trees, flowers, etc., it is usually necessary to set up guardrails, which need to be driven into the soil to achieve a certain strength. In the prior art, piling is usually carried out manually, which has low work efficiency and consumes physical strength, and the depth of the guardrail implantation cannot be guaranteed. In the prior art, pile drivers are also used to drive piles, but the existing pile drivers are usually heavy and require two or more people to operate normally. In addition, this pile driver requires an independent air source. It is inconvenient to install and carry the air source. [0003] The authorized announcement number is CN203639914U, and the authorized announcement date is June 11, 2014. In the Chinese utility model p...

AI Technical Summary

Problems solved by technology

But this pile driver has following shortcoming: 1, during work, wooden pile is inserted in the sleeve pipe, and when piston presses down, the expansion force of the gas in the cylinder is converted into the thrust of striking hammer, because the top of wooden pile offsets with striking hammer, Therefore, the thrust of the hammer and its downward inertia cannot be fully released, so the impact of the hammer is relatively small; 2. There is no buffer device in the cylinder, so the airflow generated by the gas is easy to damage the piston and the cylinder, the hammer and the cylinder. 3. There is no buffer device at the hammer, so the piling machine will generate a large vibration, the operation comfort is poor, and the parts are easy to be damaged; 4. There is no shock absorber on the handle, so when the operator operates through the handle, the operation less comfortable

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