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Novel plate-type fishplate assembly

A fishplate and plate-type technology, which is applied to cranes and other directions, can solve the problem that the processing cannot be accepted by customers, and achieve the effects of wide application coverage, convenient use, and easy procurement

Inactive Publication Date: 2017-07-14
XUZHOU CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the manufacturing process of fishplates, better machining capabilities are required. Considering the manufacturing cost, when the standard sections of medium and small towers are connected by fishplates, the relatively expensive processing is often not accepted by customers.

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] Such as Figure 5 As shown, the novel plate fishplate assembly of the present invention includes two plate fishplates 2, the upper part of the plate fishplate 2 is a rectangular structure, and the lower part is an inverted trapezoidal structure.

[0024] The lower parts of the two plate fishplates 2 are respectively connected to the tops of the two adjacent outer sides of the main chord, and are arranged one high and one low, and the upper parts of the two plate fishplates 2 are respectively provided with at least two connecting pins hole. When the upper and lower main chords are connected, the plate fish plate 2 of the lower main chord is fixedly connected with the bottom of the upper main chord through the connecting pin 3 . Such as Figure 6 As shown, in order to keep the connection convenient and ensure the load-bearing function, the new plate fishplate adopts...

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Abstract

The invention discloses a novel plate-type fishplate assembly which comprises two plate-type fishplates (2), wherein the lower parts of the two plate-type fishplates are correspondingly connected to the tops of the two adjacent outer side surfaces of two main strings; one plate-type fishplate is arranged higher than the other plate-type fishplate; at least two connecting pin shaft holes are correspondingly formed in the upper parts of the two plate-type fishplates; and when the upper and lower main strings are connected, the plate-type fishplate (2) of the lower main string is fixedly connected with the bottom of the upper main string through connecting pin shafts (3). The novel plate-type fishplate assembly achieves the beneficial effects that a novel plate-type fishplate and pin shaft connection structure is utilized, as well as angle steel, square steel tubes and other profiles are adopted as the main strings. Furthermore, the novel plate-type fishplate assembly has the advantages of being easy to purchase, convenient to manufacture, and accurate to mount and place.

Description

technical field [0001] The invention relates to a novel plate fishplate assembly, which is especially suitable for tower cranes. Background technique [0002] At present, tower cranes widely used in construction projects, the main bearing parts in the height direction are the tower body composed of many standard sections. Among them, the most common connection form of standard joints with the most reliable bearing capacity is the fishplate connection form, such as figure 1 , image 3 , Figure 4 shown. [0003] Unfortunately, due to the complicated manufacturing process, the cost of the fishplate is relatively high. In addition to being widely used in large and high-end tower cranes, on ordinary medium and small tonnage and ordinary grade tower cranes, standard joint connections are usually carried out in the form of connecting sleeves and bolted pairs, such as image 3 shown. This can not only guarantee the normal bearing capacity of the standard section tower body, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/62
CPCB66C23/62
Inventor 王建军米成宏马承杰
Owner XUZHOU CONSTR MACHINERY
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